The embodiments described herein relate generally to a machine for forming containers from a blank of sheet material and, more specifically, to methods and a machine utilizing an identification tag applicator upstream from a folding assembly to form a corrugated container from a blank of sheet material that includes applying an identification tag prior to the blank being wrapped around a mandrel.
Containers fabricated from paperboard and/or corrugated paperboard material are often used to store and transport goods. These containers can include four-sided containers, six-sided containers, eight-sided containers, bulk bins and/or various size corrugated barrels. Such containers are usually formed from blanks of sheet material that are folded along a plurality of preformed fold lines to form an erected corrugated container.
At least some known containers are formed using a machine. For example, a blank may be positioned near a mandrel on a machine, and the machine may be configured to wrap the blank around the mandrel to form at least a portion of the container. At least some machines are capable of forming a manufacturer joint on the container by folding and pressing two glue panels of the blank together. In one known example, a first folder arm folds a first portion of a blank around a mandrel, and a second folder arm folds a second portion of the blank around the mandrel such that a first panel is in face-to-face contact with a second panel. Adhesive is applied to one or both of the panels prior to the folding process. A presser arm presses the two panels together so that they are adhesively bonded together to form a manufacturer joint of the container.
Such known machines generally use linearly actuated folder arms and presser arms to form manufacturer joints. The actuation of the folder arm and the presser arm must be precisely controlled to avoid incidental contact between the folder arm and the presser arm, which can disrupt or adversely affect the container forming process. Further, panels of blanks formed from paperboard or corrugated paperboard have inherent restorative forces that bias the panels away from the mandrel when folded. As a result, when the folder arm is removed from a panel, the panel will tend to lift away from the mandrel before the presser arm presses the panel together with another panel. The lifting away of panels from the mandrel can distort manufacturer joints, thereby decreasing the uniformity and reliability of manufacturer joints formed by a machine. Accordingly, a need exists for a more satisfactory machine for forming containers from blanks.
Moreover, tag application systems have been used to apply electronic identification tags, such as Bluetooth low energy (BLE) tags, programmed radio frequency identification (RFID) tags, or other tags/beacons to items or articles to facilitate identifying and/or tracking the items or articles to which the tags are applied. These tags are generally known and may be used for a number of applications such as managing inventory, electronic access control, security systems, automatic identification of cars on toll roads, and electronic article surveillance (EAS). For example, RFID tags may be used to track or monitor the location and/or status of articles or items to which the RFID tags are applied. An RFID reader may transmit a radio-frequency carrier signal to the RFID tag. The RFID tag may respond to the carrier signal with a data signal encoded with information stored on the RFID tag. RFID tags may store information such as a unique identifier or Electronic Product Code (EPC) associated with the article or item. RFID tags may be programmed (e.g., with the appropriate EPC) and applied to the article or item that is being tracked or monitored. A RFID reader/programmer may be used to program RFID devices and to detect defective RFID devices.
In paperboard and/or corrugated container applications, existing tag application systems (e.g., RFID tag application systems or BLE tag application systems), are costly and may only serve one particular product line and/or only apply one type of identification tag (e.g., only apply RFID tags or BLE tags). Tag application systems may also be utilized separate from the container assembly machine such that the identification tags are applied to a blank prior to the assembly process or to the container post-assembly. Applying identification tags to blanks prior to assembling the containers is inefficient from both a material cost and an inventory standpoint, as some of the blanks used to assemble the containers and having identification tags applied thereto may end up scrapped before, during, and/or after assembly. Applying identification tags post-assembly introduces inefficiencies in the overall assembly process, thus limiting throughput, as well as other disadvantages such as requiring the identification tag to be applied to an exterior surface of the container where it may be damaged/removed and otherwise limiting the areas on the assembled container where the identification tag may be applied. In some known systems, tags cannot be applied to containers during a high-speed (20 to 60 or more containers formed a minute) forming process because applying the tag prior to the container being formed may alter the alignment of the blank being used to form the container within the machine such that the container is not formed properly and must be discarded, which in many cases also results in the machine being shut down. Thus, it completely disrupts the high speed forming process.
Tag application systems may also mismanage identifiers, by assigning the same unique number of EPC to multiple tags or missing coding altogether. Thus, there exist a need in the art for a tag applicator system, which is adaptable to multiple product lines and/or tag identification types, is utilized to apply an identification tag to a blank during a container assembly process, and is able to quickly identify and manage mistagged tags. There also remains a need in the art for such systems and components that are economically viable and facilitate increasing throughput and optimizing inventory. The present disclosure may provide a solution for at least one of these remaining challenges.
In one aspect, a machine for forming a container from a blank of sheet material is provided. The blank includes a first surface that forms an interior surface of the container and a second surface that forms an exterior surface of the container. The machine includes a frame and an identification tag applicator mounted to the frame. The identification tag applicator is configured to apply an identification tag to the first surface of the blank. The machine also includes a mandrel assembly mounted to the frame and located operationally downstream from the identification tag applicator. The mandrel assembly includes a mandrel having an external shape complimentary to an internal shape of at least a portion of the container. The machine also includes a lift assembly configured to lift the blank having the identification tag adhered thereto towards the mandrel and wrap the blank about the mandrel.
In another aspect, a method for forming a container from a blank of sheet material is provided. The blank includes a first surface that forms an interior surface of the container and a second surface that forms an exterior surface of the container. The machine includes a frame, an identification tag applicator mounted to the frame, and a mandrel mounted to the frame and located operationally downstream from the identification tag applicator. The method includes transferring the blank to the identification tag applicator; applying an identification tag to the first surface of the blank using the identification tag applicator; lifting the blank having the identification tag adhered thereto towards the mandrel; and wrapping the blank about the mandrel.
The following detailed description illustrates the invention by way of example and not by way of limitation. The description clearly enables one skilled in the art to make and use the invention, describes several embodiments, adaptations, variations, alternatives, and uses of the invention, including what is presently believed to be the best mode of carrying out the invention.
The present disclosure provides a machine for forming a container from a single sheet of material while also applying an identification tag thereto. The container described herein is sometimes referred to as an eight-sided container, but any number of sides of a container could be formed including, but not limited to, a four-sided or a six-sided container. In one embodiment, the container is fabricated from a paperboard material. The container, however, may be fabricated using any suitable material, and therefore is not limited to a specific type of material. In alternative embodiments, the container is fabricated using cardboard, fiberboard, paperboard, foamboard, corrugated paper, and/or any suitable material known to those skilled in the art and guided by the teachings herein provided. The container may have any suitable size, shape, and/or configuration, whether such sizes, shapes, and/or configurations are described and/or illustrated herein. Further, different embodiments described here can vary in size and/or dimensions. The container may also include lines of perforation for removal of a portion of the container for displaying articles for sale. The container may be formed at high-speed (e.g., 20 to 60 or more containers formed a minute) while an identification tag is applied to the container/blank during the forming process, resulting in a substantially stronger container (improved stacking strength) with improved identification capabilities.
In an example embodiment, the container includes at least one marking thereon including, without limitation, indicia that communicates the product, a manufacturer of the product and/or a seller of the product. For example, the marking may include printed text that indicates a product's name and briefly describes the product, logos and/or trademarks that indicate a manufacturer and/or seller of the product, and/or designs and/or ornamentation that attract attention. “Printing,” “printed,” and/or any other form of “print” as used herein may include, but is not limited to including, ink jet printing, laser printing, screen printing, giclée, pen and ink, painting, offset lithography, flexography, relief print, rotogravure, dye transfer, and/or any suitable printing technique known to those skilled in the art and guided by the teachings herein provided. In another embodiment, the container is void of markings, such as, without limitation, indicia that communicates the product, a manufacturer of the product and/or a seller of the product.
The methods and machine for forming corrugated containers described herein overcome the limitations of known box forming machines. The methods and machines described herein utilize a glue panel folder assembly having a glue panel folding member that moves in a curvilinear path of motion to form manufacturer joints on containers. The curvilinear path of motion of the glue panel folding member facilitates formation of manufacturer joints on containers by enabling an overlap panel to be rotated around a mandrel into close proximity to a glue panel while the glue panel is held against the mandrel. Moving the glue panel folding member in a curvilinear path of motion thereby prevents and/or limits the glue panel from lifting away from the mandrel during the formation of manufacturer joints on containers. By preventing and/or limiting the glue panel from lifting away from the mandrel, the uniformity and reliability of manufacturer joints is improved. Moreover, moving the glue panel folding member in a curvilinear path of motion reduces the lag time between folding and pressing operations during the formation of manufacturer joints on containers, thereby increasing the rate at which containers may be formed.
Referring now to the drawings,
First corner panel 22 extends from a first free edge 56 to fold line 40, first side panel 24 extends from first corner panel 22 along fold line 40, second corner panel 26 extends from first side panel 24 along fold line 42, first end panel 28 extends from second corner panel 26 along fold line 44, third corner panel 30 extends from first end panel 28 along fold line 46, second side panel 32 extends from third corner panel 30 along fold line 48, fourth corner panel 34 extends from second side panel 32 along fold line 50, second end panel 36 extends from fourth corner panel 34 along fold line 52, and glue panel 38 extends from second end panel 36 along fold line 54 to a second free edge 58.
A first top side panel 60 and a first bottom side panel 62 extend from opposing edges of first side panel 24. More specifically, first top side panel 60 and first bottom side panel 62 extend from first side panel 24 along a pair of opposing preformed, generally parallel, fold lines 64 and 66, respectively. Similarly, a second bottom side panel 68 and a second top side panel 70 extend from opposing edges of second side panel 32. More specifically, second bottom side panel 68 and second top side panel 70 extend from second side panel 32 along a pair of opposing preformed, generally parallel, fold lines 72 and 74, respectively. Fold lines 64, 66, 72, and 74 are generally parallel to each other and generally perpendicular to fold lines 40, 42, 48, and 50. First bottom side panel 62 and first top side panel 60 each have a width 76 taken along a central horizontal axis 78 of blank 20 that is greater than a width 80 of first side panel 24, also taken along central horizontal axis 78. Similarly, second bottom side panel 68 and second top side panel 70 each have width 76 that is greater than width 80 of second side panel 32, taken along central horizontal axis 78.
First bottom side panel 62 and first top side panel 60 each include a free edge 82 or 84, respectively. Similarly, second bottom side panel 68 and second top side panel 70 each include a free edge 86 or 88, respectively. Bottom side panels 62 and 68 and top side panels 60 and 70 each include opposing angled edge portions 90 and 92 that are each obliquely angled with respect to respective fold lines 64, 66, 72, and/or 74. Although other angles may be used without departing from the scope of the present disclosure, in one embodiment, edge portions 90 and 92 are angled at about 45° with respect to respective fold lines 64, 66, 72, and/or 74.
The shape, size, and arrangement of bottom side panels 62 and 68 and top side panels 60 and 70 as shown in
As shown in
First bottom end panel 96 and first top end panel 94 each include a free edge 114 or 116, respectively. Similarly, second bottom end panel 102 and second top end panel 104 each include a free edge 118 or 120, respectively. Bottom end panels 96 and 102 and top end panels 94 and 104 each include opposing side edge portions 122 and 124 that are each substantially parallel to respective fold lines 44, 46, 52, and/or 54. Although other angles may be used without departing from the scope of the present disclosure, in one embodiment, side edge portions 122 and 124 are angled at about 180° with respect to respective fold lines 44, 46, 52, and/or 54.
As a result of the above example embodiment of blank 20, a manufacturer's joint, a container bottom wall, and a container top wall formed therefrom may be securely closed so that various products may be securely contained within a formed container. Therefore, less material may be used to fabricate blank 20 having suitable strength for construction of a container that can contain various loads.
As will be described below in more detail with reference to
Each wall 204, 206, 208, 210, 212, 214, 216, and 218 has a height 220. Although each wall may have a different height without departing form the scope of the present disclosure, in the embodiment shown
In the example embodiment, first corner wall 204 connects first side wall 206 to second end wall 218, second corner wall 208 connects first side wall 206 to first end wall 210, third corner wall 212 connects first end wall 210 to second side wall 214, and fourth corner wall 216 connects second side wall 214 to second end wall 218. Further, bottom panels 62, 68, 96, and 102 form a bottom wall 222 of container 200, and top panels 60, 70, 94, and 104 form a top wall 224 of container 200. Although container 200 may have other orientations without departing form the scope of the present disclosure, in the embodiments shown in
Bottom panels 62, 68, 96, and 102 are each orientated generally perpendicular to walls 204, 206, 208, 210, 212, 214, 216, and 218 to form bottom wall 222. More specifically, bottom end panels 96 and 102 are folded beneath/inside of bottom side panels 62 and 68. Similarly, in a fully closed position (shown in
As shown in
In certain embodiments, such as, but not limited to, embodiments where at least one servomechanism is used, control system 1004 may enable an operator to change recipes or protocols by making a selection on a user interface. The recipes are computer instructions for controlling the machine to form different size boxes, different types of boxes, and/or control the output of the formed containers. The different recipes control the speed, timing, force applied, and/or other motion characteristics of the different forming components of the machine including how the components move relative to one another. However, the processes and systems described herein are not limited in any way to the corrugated container shown herein. Rather, the processes and systems described herein can be applied to a plurality of container types manufactured from a plurality of materials.
Magazine feed section 1100 is positioned at an upstream end 1006 of machine 1000 with respect to a sheet loading direction indicated by an arrow X. Vacuum transfer section 1200 in positioned downstream from magazine feed section 1100 in sheet loading direction X. Moreover, mandrel wrap section 1300 is positioned downstream from vacuum transfer section 1200 in sheet loading direction X. Further, outfeed section 1500 is positioned downstream from mandrel wrap section 1300 in sheet loading direction X, and product load section 1600 is positioned downstream from outfeed section 1500 with respect to a container discharge direction indicated by an arrow Y. Product load section 1600 is where a product is loaded into formed container 200, and container 200 is closed and sealed for shipping and/or storing the product.
In the example embodiment, magazine feed section 1100 includes a plurality of powered magazine drives 1102 for receiving a plurality of blanks 20. Blanks 20 are orientated in any manner that enables operation of machine 1000 as described herein. In the example embodiment, blanks 20 are loaded vertically into magazine feed section 1100. Magazine feed section 1100 may also include an alignment device (not shown) such as, but not limited to, a stack presser and/or any other device that justifies and/or aligns blanks 20. After blanks 20 are loaded onto magazine drives 1102, a bundle of blanks 20 is conveyed, in sheet loading direction X, from magazine feed section 1100 to vacuum transfer section 1200.
Transfer section 1200 includes a transfer assembly 1202 (shown in
Transfer section 1200 also may include an automated adhesive applicator 1210 (shown in
As discussed above, adhesive applicator 1210 applies adhesive to certain predetermined panels and/or flaps of blank 20 before blank is positioned adjacent mandrel 1312 and/or while blank 20 is positioned adjacent mandrel 1312. For example, adhesive applicator 1210 may apply adhesive to exterior surfaces of glue panel 38, first bottom end panel 96, and/or second bottom end panel 102 and/or to interior surfaces of first corner panel 22, first bottom side panel 62, and/or second bottom side panel 68 (shown in
Actuators 1332, 1334, and/or 1336 are each controlled separately to lift blank 20 toward and/or against mandrel assembly 1302. As such, lift assembly 1304 is positioned adjacent mandrel assembly 1302. Although shown as being operated separately, actuators 1332, 1334, and 1336 could also be controlled as a single unit with a single actuator. In the example embodiment, lift assembly 1304 receives blank 20 from transfer assembly 1202 and lifts blank 20 toward mandrel assembly 1302. For example, under plate assembly 1328 includes a plate 1338 that lifts second side panel 32 toward bottom face 1318 of mandrel 1312. Lift mechanisms 1324 and 1326 assist folding assembly 1306 in wrapping blank 20 about mandrel 1312, as described in more detail below.
Folding assembly 1306 includes a lateral presser arm 1340 having an engaging bar 1342; a folding arm 1344 having a squaring bar 1346, an engaging bar 1348, and a miter bar 1350; a glue panel folder assembly 1352; a glue panel presser assembly 1354; and a plurality of actuators 1356, 1358, 1360, and 1362. These assemblies also include devices such as, but not limited to, guide rails and mechanical fingers (not shown). In the example embodiment, lateral presser arm 1340 is coupled to first lift mechanism 1324 at an actuator 1356, and folding arm 1344 is coupled to second lift mechanism 1326 at an actuator 1358.
Referring to
Folding arm engaging bar 1348 is configured to contact the second portion of blank 20 to wrap blank 20 about mandrel 1312 as folding arm 1344 is rotated by actuator 1358 and/or lifted by second lift mechanism 1326 and actuator 1334. Miter bar 1350 is configured to contact second corner panel 26 to position second corner panel 26 adjacent to and/or against side face 1320 and/or top face 1322. Squaring bar 1346 is configured to contact first end panel 28 adjacent fold line 44 between first end panel 28 and second corner panel 26. As such, squaring bar 1346 facilitates aligning and folding panels 26 and 28 against mandrel 1312 as the second portion of blank 20 is wrapped about mandrel 1312. In the illustrated embodiment, actuator 1358 is a servomechanism, and control system 1004 is configured such that folding arm 1344 can be rotated using servomechanism actuator 1358 to control the speed, force, and location of folding arm 1344. In an alternative embodiment, actuator 1358 is driven to rotate folding arm 1344 using a mechanical linkage or other suitable mechanism.
Glue panel folder assembly 1352 includes actuator 1360 and a glue panel folder plate 1364 (broadly, a folding member) operatively coupled to actuator 1360. Actuator 1360 is configured to control movement of glue panel folder plate 1364 towards and away from mandrel 1312. In the example embodiment, actuator 1360 is a servomechanism, and is configured to move glue panel folder plate 1364 at variable speeds. Alternatively, actuator 1360 may be any suitable actuator that enables machine 1000 to function as described herein, including for example jacks, mechanical linkages, other suitable mechanical or electronic actuators, or any suitable combination thereof. Glue panel folder plate 1364 includes a distal end 1366 configured to contact and/or fold glue panel 38 during formation of container 200. Although the illustrated embodiment is shown with an angled glue panel folder plate 1364, glue panel folder assembly 1352 may include any suitable folding member that enables glue panel folder assembly 1352 to function as described herein, including, but not limited to, a curved plate, a rod, a plurality of rods (e.g., fingers), and combinations thereof.
Glue panel folder plate 1364 is configured to move between a first, retracted position (shown in
Glue panel folder assembly 1352 is configured to facilitate formation of manufacturer joints on containers, and to increase the uniformity and reliability of such manufacturer joints. More specifically, and as described below in more detail, glue panel folder plate 1364 is configured to move in a curvilinear path of motion, indicated by arrow 1368 in
Linear drive system 1370 is operatively coupled to actuator 1360 and glue panel folder plate 1364 for converting radial motion of actuator 1360 into linear motion, and moving glue panel folder plate 1364 towards mandrel 1312. In the example embodiment, linear drive system 1370 includes a rack and pinion assembly including a pinion 1376 operatively coupled to actuator 1360, and a rack 1378 operatively coupled to glue panel folder plate 1364. Linear drive system 1370 is rotatably mounted to frame 1002 by mounting assembly 1374 such that actuation of actuator 1360 causes glue panel folder plate 1364 to extend towards mandrel 1312, and causes glue panel folder assembly 1352 and glue panel folder plate 1364 to rotate about a pivot point. More specifically, mounting assembly 1374 includes a bearing 1380 and a shaft 1382 operatively coupled to linear drive system 1370 such that glue panel folder assembly 1352 rotates about shaft 1382 when actuator 1360 is actuated. Shaft 1382 thus defines the pivot point about which glue panel folder assembly 1352 rotates when actuator 1360 is actuated.
Glue panel folder plate 1364 is also rotatably coupled to frame 1002 by rotation guide arms 1372 configured to rotate glue panel folder plate 1364 upon actuation of actuator 1360. More specifically, each rotation guide arm 1372 includes a first end 1384 rotatably coupled to glue panel folder plate 1364 and an opposing second end 1386 rotatably coupled to frame 1002. In the illustrated embodiment, second ends 1386 of rotation guide arms 1372 are coupled to frame 1002 by a frame extension member 1008, although in alternative embodiments, second ends 1386 may be coupled directly to frame 1002. Rotation guide arms 1372 are configured to limit the linear motion of glue panel folder plate 1364 towards mandrel 1312 by causing the glue panel folder assembly 1352, including glue panel folder plate 1364, to rotate as glue panel folder plate 1364 is moved towards mandrel 1312 by linear drive system 1370. The curvilinear path of motion 1368 of glue panel folder plate 1364 thus includes a linear component from linear drive system 1370 and a rotational component from rotation of glue panel folder assembly 1352.
In an alternative embodiment, actuator 1360 is a linear actuator, such as a pneumatic cylinder, and linear drive system 1370 is omitted. In such an embodiment, the linear actuator may be rotatably mounted to frame 1002 by mounting assembly 1374 in the same manner as linear drive system 1370, described above. Moreover, glue panel folder assembly 1352 is not limited to use in machine 1000, and may be used in combination with other container forming machines.
Glue panel presser assembly 1354 is configured to cooperate with glue panel folder assembly 1352 to form a manufacturer joint of container 200. More specifically, glue panel presser assembly 1354 includes a presser bar 1388 operatively coupled to actuator 1362 for controlling movement of presser bar 1388 towards and away from mandrel 1312. In the example embodiment, actuator 1362 is a servomechanism, and is configured to move presser bar 1388 at variable speeds. Alternatively, actuator 1362 may be any suitable actuator that enables machine 1000 to function as described herein, including for example jacks, mechanical linkages, other suitable mechanical or electronic actuators, or any suitable combination thereof. Presser bar 1388 includes a pressing surface 1390 configured to contact and fold first corner panel 22 and/or glue panel 38 around mandrel 1312, and press first corner panel 22 and glue panel 38 together to form a manufacturer joint of container 200. Pressing surface 1390 is substantially parallel to mandrel face 1314. Presser bar 1388 is configured to move in a linear path of motion, indicated by arrow 1392 in
In some embodiments, glue panel presser assembly 1354 may include a secondary glue panel presser assembly 1396 (shown in
As shown in
Referring to
Ejection assembly 1310 includes an ejection plate 1408 moveable from a first position within mandrel 1312 to a second position downstream from mandrel 1312. When ejection plate 1408 is at the first position, bottom folder assembly 1308 folds and/or presses bottom panels 62, 68, 96, and/or 102 against ejection plate 1408 to form bottom wall 222 of container 200. When ejection plate 1408 is at the second position, container 200 is removed from mandrel 1312. In the example embodiment, ejection plate 1408 includes an actuator (not shown) that controls speed, force, rotation, extension, retraction, and/or any other suitable movements of ejection plate 1408.
Referring to
During operation of machine 1000 to form container 200, blank 20 is positioned under mandrel assembly 1302 by transfer assembly 1202. Referring to
More specifically, lateral presser arm 1340 wraps the first portion of blank 20 around mandrel 1312 in a first direction (shown as a clockwise direction in
Folding arm 1344 wraps the second portion of blank 20 around mandrel 1312 in a second direction (shown as a counterclockwise direction in
Glue panel folder assembly 1352 and glue panel presser assembly 1354 cooperate with one another to form a manufacture joint of container 200. More specifically, as lateral presser arm 1340 is lifted and/or rotated to wrap the first portion of blank 20 around mandrel 1312, actuator 1360 moves glue panel folder plate 1364 in the curvilinear path of motion 1368 toward glue panel 38 such that glue panel folder plate 1364 engages glue panel 38 to rotate glue panel 38 toward and into face-to-face contact with corner face 1314 of mandrel 1312. Alternatively, glue panel folder plate 1364 is moved after lateral presser arm 1340 is lifted and/or rotated.
In the illustrated embodiment, actuator 1360 moves glue panel folder plate 1364 via linear drive system 1370, which, as noted above, is rotatably mounted to frame 1002 by mounting assembly 1374. Actuation of actuator 1360 causes glue panel folder plate 1364 to extend towards mandrel 1312 while glue panel folder assembly 1352 and glue panel folder plate 1364 rotate about shaft 1382. As shown in
As noted above, actuator 1360 is configured to move glue panel folder plate 1364 at variable speeds. In one suitable embodiment, actuator 1360 moves glue panel folder plate 1364 in the curvilinear path of motion 1368 towards mandrel 1312 at a first speed, and moves glue panel folder plate 1364 in the curvilinear path of motion 1368 away from mandrel 1312 at a second speed that is greater than the first speed. In alternative embodiments, actuator 1360 may move glue panel folder plate 1364 at any suitable speed at any suitable point along the curvilinear path of motion 1368 that enables machine 1000 to function as described herein.
Once folding arm 1344 has wrapped the second portion of blank 20 around mandrel 1312, actuator 1362 moves glue panel presser bar 1388 toward first corner panel 22 and/or glue panel 38 to rotate first corner panel 22 about fold line 40, and press first corner panel 22 and glue panel 38 together against mandrel 1312 to form a manufacturer joint of container 200. More specifically, glue panel presser bar 1388 engages first corner panel 22 and rotates first corner panel 22 about mandrel 1312 into an overlapping relationship with at least a portion of glue panel 38. After first corner panel 22 is rotated into an overlapping relationship with at least a portion of glue panel 38, glue panel folder plate 1364 disengages glue panel 38, and moves in the curvilinear path of motion 1368 away from mandrel 1312. The curvilinear path of motion 1368 of glue panel folder plate 1364 permits glue panel presser bar 1388 to rotate first corner panel 22 into an overlapping relationship with glue panel 38 while glue panel 38 is held against mandrel 1312 by glue panel folder plate 1364 without incidental contact between glue panel presser bar 1388 and glue panel folder plate 1364. Moreover, the curvilinear path of motion 1368 of glue panel folder plate 1364 enables glue panel presser bar 1388 to rotate first corner panel 22 while glue panel folder plate 1364 is engaging glue panel 38 and holding glue panel 38 against mandrel 1312. Just prior to the point in time when first corner panel 22 comes into face-to-face contact with glue panel 38, glue panel folder plate 1364 moves in the curvilinear path of motion 1368 away from mandrel 1312, and around first corner panel 22 and glue panel presser bar 1388, so that glue panel 38 and first corner panel 22 can be secured to one another. The portion of first corner panel 22 overlapping glue panel 38 prevents and/or limits glue panel 38 lifting away from mandrel 1312 after glue panel folder plate 1364 disengages glue panel 38. Thus, glue panel 38 is essentially exchanged from glue panel folder bar 1364 to glue panel presser bar 1388 by a “handshake” between glue panel folder plate 1364 and glue panel presser bar 1388. Glue panel folder assembly 1352 and glue panel presser assembly 1354 thereby maintain constant contact between glue panel 38 and mandrel 1312 while the manufacturer joint of container 200 is formed, thereby improving the reliability and uniformity of manufacturer joints of containers formed by machine 1000.
Actuator 1362 holds glue panel presser bar 1388 against panels 22 and 38 for a predetermined time period and/or duration to ensure that adhesive bonds panels 22 and 38 together. Accordingly, lateral presser arm 1340, folding arm 1344, glue panel folder assembly 1352, and glue panel presser assembly 1354 cooperate to fold blank 20 along fold lines 40, 42, 44, 46, 48, 50, 52, and 54 to form container 200.
Bottom folder assembly 1308 then rotates bottom panels 62, 68, 96, and 102 about fold lines 66, 72, 100, and 106. More specifically, bottom end panel folders 1400 and 1402 rotate bottom end panels 102 and 96, respectively, against ejection plate 1408; bottom side panel folders 1398 rotate first bottom side panel 62 against bottom end panels 96 and/or 102 and/or against ejection plate 1408; and lower plate 1404 rotates second bottom side panel 68 against panels 62, 96, and/or 102 and/or against ejection plate 1408. Lower plate 1404 presses panels 62, 68, 96, and/or 102 against ejection plate 1408 for a predetermined period and/or duration of time to ensure that adhesive bonds panels 62, 68, 96, and/or 102 together.
Ejection assembly 1310 facilitates removal of formed container 200 from mandrel wrap section 1300 to outfeed section 1500. More specifically, ejection plate 1408 applies a force to bottom wall 222 of container 200 to remove container 200 from mandrel 1312. In the example embodiment, ejection plate 1408 is at a first position within and/or adjacent to mandrel 1312 during formation of container 200. To remove container 200, ejection plate 1408 is moved to a second position adjacent outfeed section 1500. As ejection plate 1408 is moved, container 200 is moved toward outfeed section 1500. At outfeed section 1500 container 200 is conveyed downstream from machine 1000 for loading and/or top wall formation by conveyor assembly 1502. For example, after container 200 is formed and a product is placed inside container 200, top panels 60, 70, 94, and 104 are closed to form top wall 224 for shipping of the product.
Control system 1004 is coupled to each actuator 1332, 1334, 1336, 1356, 1358, 1360, 1362, 1397, and 1504 for controlling operation thereof. Actuators 1332, 1334, 1336, 1356, 1358, 1360, 1362, 1397, and 1504 are configured to independently drive and position the associated devices and/or components as instructed by control system 1004. Machine 1000 and, more specifically, control system 1004, may be configured to automatically detect dimensional features of blanks 20 of varying shapes and sizes to facilitate assembly of containers having a variety of shapes and sizes.
As noted above, machine 1000 may be used to form a box or container having any size, shape, and/or configuration from a blank having any size, shape, and/or configuration. In one suitable embodiment, machine 1000 is used to form a four-sided container.
Blank 300 includes a first side panel 302, a first end panel 304, a second side panel 306, a second end panel 308, and a glue panel 310 connected in series along a plurality of preformed, generally parallel, fold lines. First side panel 302 is interchangeably referred to as an overlap panel because it overlaps glue panel 310 during formation of container 400 to form a manufacturer joint of container 400, as described in more detail below.
Mandrel assembly 1700 includes a mandrel 1704 substantially similar to mandrel 1312 (shown in
Folding assembly 1702 is substantially identical to folding assembly 1306 (shown in
Glue panel presser assembly 1710 is substantially identical to glue panel presser assembly 1354 (shown in
During operation of machine 1000 to form container 400, blank 300 is positioned adjacent mandrel 1704, and under plate assembly 1328 is raised upwardly relative to blank 300 such that blank 300 is positioned adjacent to and/or in contact with bottom face 1318 of mandrel 1704. First and second lift mechanisms 1324 and 1326 are raised and engage at least end panels 308 and 304, respectively, of blank 300 to begin wrapping blank 300 around mandrel 1704. Lateral presser arm 1340 wraps a first portion of blank 300 around mandrel 1312 in a first direction (shown as a clockwise direction in
As lateral presser arm 1340 is lifted and/or rotated to wrap the first portion of blank 300 around mandrel 1704, actuator 1360 moves glue panel folder plate 1364 in a curvilinear path of motion, indicated by arrow 1368 in
Glue panel folder plate 1364 is held in the extended position (shown in
Folding arm 1344 holds first side panel 302 and glue panel 310 against mandrel 1704 as glue panel presser assembly 1710 presses first side panel 302 and glue panel 310 together against mandrel 1704 to form a manufacturer joint of container 400. More specifically, actuator 1362 moves glue panel presser bar 1712 in a linear path of motion, indicated by arrow 1716 in
The curvilinear path of motion 1368 of glue panel folder plate 1364 facilitates maintaining glue panel 310 against mandrel 1704 during formation of container 400. More specifically, just prior to the point in time when first side panel 302 comes into face-to-face contact with glue panel 310, glue panel folder plate 1364 moves in the curvilinear path of motion 1368 away from mandrel 1704, and around first side panel 302, so that first side panel 302 may be positioned in face-to-face relationship with glue panel 310. The curvilinear path of motion 1368 permits folding arm 1344 to rotate first side panel 302 into an overlapping relationship with glue panel 310 while glue panel 310 is held against mandrel 1704 by glue panel folder plate 1364 without incidental contact between glue panel folder plate 1364 and first side panel 302. The portion of first side panel 302 overlapping glue panel 310 prevents and/or limits glue panel 310 lifting away from mandrel 1704 after glue panel folder plate 1364 disengages glue panel 310. Thus, glue panel 310 is essentially exchanged from glue panel folder bar 1364 to folding arm 1344 by a “handshake” between glue panel folder plate 1364 and folding arm 1344. Glue panel folder assembly 1352 (in particular, the curvilinear path of motion 1368 of glue panel folder plate 1364) thereby facilitates maintaining constant contact between glue panel 310 and mandrel 1704 while the manufacturer joint of container 200 is formed, thereby improving the reliability and uniformity of manufacturer joints of containers formed by machine 1000.
In contrast to known container forming machines, in the methods and machine described herein, a glue panel folding member moves in a curvilinear path of motion to fold a glue panel around a mandrel. The curvilinear path of motion of the glue panel folding member facilitates formation of manufacturer joints on containers by enabling an overlap panel to be rotated into close proximity with the glue panel while the glue panel is held against the mandrel. Moving the glue panel folding member in a curvilinear path of motion thereby prevents and/or limits the glue panel from lifting away from the mandrel during the formation of manufacturer joints on containers. By preventing and/or limiting the glue panel from lifting away from the mandrel, the uniformity and reliability of manufacturer joints is improved. Moreover, moving the glue panel folding member in a curvilinear path of motion reduces the lag time between folding and pressing operations during the formation of a manufacturer joint on a container, thereby increasing the rate at which containers may be formed.
Machine with Identification Tag Applicator
Various components are omitted from the machine 1000 shown in
As shown in
As described above, magazine feed section 1100 includes a plurality of powered magazine drives 1102 for receiving a plurality of blanks 20. Blanks 20 are orientated in any manner that enables operation of machine 1000 as described herein. In the example embodiment, blanks 20 are loaded vertically into magazine feed section 1100. Magazine feed section 1100 may also include an alignment device (not shown) such as, but not limited to, a stack presser and/or any other device that justifies and/or aligns blanks 20. After blanks 20 are loaded onto magazine drives 1102, a bundle of blanks 20 is conveyed, in sheet loading direction X, from magazine feed section 1100 to vacuum transfer section 1200.
Transfer section 1200 includes a transfer assembly 1202 (shown in
Transfer section 1200 also may include an automated adhesive applicator 1210 (shown in
In the example embodiment of
Suitably, identification tab applicator 1800 applies an identification tag 500 to an interior surface of one of the panels 22, 24, 26, 28, 30, 32, 34, 36, and/or 38 such that, when the container 200 is assembled, the identification tag 500 is located on an interior surface of the container 200 that is vertically oriented when the container 200 is erect (shown in
The identification tag 500 may be any suitable low-power electronic tag configured to emit/transmit/broadcast a data signal automatically and/or in response to an externally applied carrier signal. For example, the identification tag 500 may be a radiofrequency identification (RFID) tag or a Bluetooth low energy (BLE) tag. The identification tag 500 is programmed to store information and emit/transmit/broadcast the information in the data signal. The information may include, for example, a unique identifier, Electronic Product Code (EPC), lot, batch, date, or other information that facilitates authenticating, tracking, and/or monitoring the container 200 and/or material to be stored within the container 200. The data signal that includes the information stored on the identification tag 500 is received by a receiving device (e.g., Bluetooth readers, radio-frequency identification (RFID) scanners, wands, or other scanning devices, including portable computing devices such as a smartphone), which may transmit a carrier signal to interrogate the identification tag 500 for the data signal. The receiving device may be connected (e.g., by wireless or wired communication) to a local or remote printing device and/or processing device. Thereby, the receiving device may extract information in the data signal from the identification tag 500 and port the information to the printer, which may in turn print labels and/or other tags to be applied to an exterior surface of the container 200, and/or to the processing device that may decipher the information in the data signal and derive further information therefrom. In some examples, the information received by the receiving device (or from the printer or processing device) may identify containers 200 or 400 that should be removed from the supply chain.
As shown in
In the example configuration of machine 1000, the blank 20 passes beneath the beams 1010 and the identification tag applicator 1800 as the blank 20 is transferred along the transfer section 1200 from magazine feed section 1100 to mandrel wrap section 1300. The interior surface of blank 20 is oriented toward and faces the identification tag applicator 1800 to enable the identification tag 500 to be applied to the interior surface of the blank 20 (i.e., to the interior surface of one of the panels 22, 24, 26, 28, 30, 32, 34, 36, and 38). Although not specifically shown in
The control system 1004, described above, is operatively coupled in communication with identification tag applicator 1800 and adhesive applicator 1210. Control system 1004 controls the application of the adhesive by the adhesive applicator 1210 and the application of the identification tag 500 by the identification tag applicator 1800. The adjacent positioning of the adhesive applicator 1210 and the identification tag applicator 1800 enables the control system 1004 to control the adhesive and identification tag 500 on opposing surfaces of the blank 20 substantially simultaneously, or in immediate series. Additionally, the control system 1004 may control application of each of the adhesive and the identification tag 500 based on a signal received from a sensor 1014 (e.g., an optical sensor, such as a photo eye or camera). That is, a signal received from sensor 1014 may be used by the control system 1004 to control application of both the adhesive and the identification tag 500. The control system 1004 may control the timing of the applications based on the predetermined areas on which the adhesive and the identification tag 500 are to be applied. For example, where the adhesive is to be applied to one or both of the first bottom side panel 62 and second bottom side panel 68 of blank 20, the control system 1004 may control the timing of the adhesive applicator 1210 to apply adhesive prior to application of the identification tag 500, as the bottom side panels 62, 68 pass through the adjacently positioned adhesive applicator 1210 and identification tag applicator 1800 before the panels 22, 24, 26, 28, 30, 32, 34, 36, and 38 as the blank 20 is being transferred. This configuration facilitates increasing throughput of the blank 20 through the adhesive and identification tag application processes, and reducing operational and computational complexities as a single sensor signal is used by the control system 1004 to control the application processes.
Referring now to
The identification tag applicator 1800 includes a spool 1808 that contains an initially unwound roll of tape 502. During an application process, the tape 502 is unwound from the spool 1808 and guided by a series of rollers 1809, 1810, 1811, and 1812 in a generally downward direction to an application roll 1813. Thus, the tape path traversed by the tape 502 having the identification tags 500 is defined between the spool 1808 and the application roll 1813. The application roll 1813 presents an identification tag 500 that is selectively removable from the tape 502 by a blade (not shown) positioned adjacent the application roll 1813.
An application head 1818 is positioned adjacent to the application roll 1813 and receives the identification tag 500 removed from the tape 502, and the application head 1818 may include the blade for removing an identification tag 500. The application head 1818 is vertically moveable relative to the application roll 1813 and the blank 20. More specifically, the application head 1818 is coupled to an actuator 1820 (e.g., a linear actuator, pneumatic cylinder, servomotor) that selectively lifts the application head 1818 to receive an identification tag 500 from the tape 502 and subsequently lowers the application head 1818 toward the blank 20 to apply the identification tag 500. The application head 1818 is coupled in fluid communication with a pressurized fluid (e.g., air) supply 1822 and a vacuum system 1824. The vacuum system 1824 enables the application head 1818 to apply a suction force to the identification tag 500 to receive and/or hold the tag 500 as the application head 1818 is being moved toward the blank 20. The pressurized fluid supply 1822 enables the application head 1818 to apply a blowing force to the identification tag 500 when the application head 1818 is located suitably proximate to the blank 20 and the blank 20 is in position relative to the application head 1818 to have the identification tag 500 applied to the appropriate area. Suitably, the blowing force application allows the tag 500 to be applied onto blank 20 without the application head 1818 contacting the blank 20, which may alter a path of motion of blank 20 as the blank is being transferred. By applying the tag 500 using the blowing force, tag 500 may be applied at high speeds without altering the alignment of the blank relative to the machine. Thus, tag 500 may be applied while the blank remains in proper alignment with the mandrel that facilitates forming the container. Thus, the container is properly formed with the tag at high speeds and machine shutdowns are minimized.
As described above, in some embodiments, the tape 502 may include initially unprogrammed RFID identification tags 500. As the tape 502 unwinds from the spool 1808 down the tape path toward the application roll 1813, each of the identification tags 500 (e.g., RFID tags) may be sent a programming signal by an RFID programmer (not shown) positioned adjacent the tape path. An RFID reader (not shown) may also be positioned adjacent the tape path (and, optionally, adjacent the RFID programmer. The RFID reader and the programmer are positioned such that they are aimed at different tags 500 on the tape 502. The RFID reader checks that each of the tags that had been attempted to be tagged has been tagged or programmed properly. The RFID reader is connected to a controller (e.g., control system 1004 or an local controller of the identification tag applicator 1800) and, as the tape 502 unwinds down the tape path toward the application roll 1813, the controller may control the tape 502 and tags 500 to selectively pass by the application head 1818 so that improperly programmed RFID tags 500 are not removed from the tape 502 and/or not received by the application head 1818, so that improperly programmed RFID tags 500 are not applied to the blank 20. For example, the controller may control the tape 502 to speed up so that an unprogrammed tag 500 passes the application head 1818 without interrupting normal process flow of machine 1000.
After an identification tag 500 is removed from the tape 502 (or an improperly programmed tag 500 is selectively passed by the application head 1818), bare tape 503 is passed along a second tape path by a series of rollers 1814 and 1815 to a receiving spool 1816 that collects and winds a roll of bare tape 503.
As described above, the controller 1004 is operatively coupled in communication with the identification tag applicator 1800 and controls the timing of the application of the identification tags 500 onto blank 20. One or multiple of the rollers 1809, 1810, 1811, 1812, 1813, 1814, and/or 1815, and/or spools 1808, 1816, are rotatably coupled to a motor (e.g., a servomotor, not shown) by a shaft (not shown) and the remaining rollers and/or spools are freely rotatable. The motor(s) may be housed in the motor housing 1802. The controller 1004 controls rotation of the rollers 1809, 1810, 1811, 1812, 1813, 1814, and 1815, and spools 1808, 1816, by actuating the motor-controlled rollers and/or spools, which advances the tape 502 down the tape path and the bare tape 503 along the second tape path. The controller 1004 also controls the actuator 1820 to selectively lift and lower the application head 1818 to cooperate with the advancing tape 502. Suitably, the tape 502 is incrementally advanced by the controller 1004 so that each (properly programmed) identification tag 500 is removed and applied to a blank 20. The controller 1004 may control the cooperation between the advancing tape 502 and the application head 1818 based on a sensor signal receiving from sensor 1014.
In operation of the identification tag applicator 1800, a blank 20 is transferred along the transfer section 1200 and the position of blank 20 is detected (e.g., by sensor 1014). The application head 1818, having received an identification tag 500 that was removed from the tape 502, is lowered (indicated by arrow 1826 in
After an identification tag 500 is applied by the identification tag application and, optionally, adhesive is applied by adhesive applicator 1210, blank 20 is transferred to the mandrel wrap section 1300 from transfer section 1200 and positioned under mandrel 1312. Various portions and perspectives of mandrel wrap section 1300 are described above and shown in
In contrast to known container forming machines, in the methods and machine described herein, and in addition to the features described above, an identification tag applicator is provided that applies an identification tag to a blank during a container assembly process. More specifically, the identification tag applicator is located within a machine for forming a container and is positioned upstream from a mandrel. The identification tag application enables identification tags to be applied to an interior of a container during the assembly of the container, which facilitates increasing throughput and reducing inventory costs. Moreover, the application of identification tags within an interior of the container facilitates reducing the likelihood that the identifications tags will be removed and/or damaged. The identification tag applicator may be equipped with programming and identification reader controls that facilitate ensuring that properly programmed tags are applied. The identification tag applicator may be implemented in operationally adjacent relationship to an adhesive applicator, which facilitates reducing operational complexities, increasing throughput, and reducing overall footprint required to house the identification tag applicator within a machine frame. The identification tag applicator may be retrofitted into existing machines, and further may be implemented in assembly processes for various container types. For example, in some embodiments, the identification tag applicator may be utilized to apply identification tags between layers of corrugated material, depending on the application and container design. The identification tag applicator also facilitates multiple types of identification tags (e.g., RFID tags and BLE tags) to be applied within a single machine. The identification tag applicator may also be selectively adjusted to apply the identification tags in suitable locations to improve readability of the tags (e.g., by applying the identification tags in locations oriented outwardly when multiple containers are assembled in multiple adjacent vertically stacked arrangements).
Example embodiments of methods and a machine for forming a container from a blank are described above in detail. The methods and machine are not limited to the specific embodiments described herein, but rather, components of systems and/or steps of the methods may be utilized independently and separately from other components and/or steps described herein. For example, the machine may also be used in combination with other blanks and containers, and is not limited to practice with only the blank and container described herein.
Although specific features of various embodiments of the disclosure may be shown in some drawings and not in others, this is for convenience only. In accordance with the principles of the disclosure, any feature of a drawing may be referenced and/or claimed in combination with any feature of any other drawing.
This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
Number | Date | Country | |
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20240132243 A1 | Apr 2024 | US |