Injection molding is a process for producing manufactured products from a resin material, such as thermoplastic or thermosetting plastic material. After the product is designed, a mold is created, usually from a metal such as steel or aluminum. The mold is precision-machined to form the features of the product. To create the product, the resin material is heated and forced by injection into the mold cavity, where it cools and conforms to the configuration of the mold cavity.
In-mold labeling is a process by which a product's label is secured to the product during the molding process, so that the label becomes an integral part of the product. During the in-mold labeling process, tooling can transfer the label to the mold and align it in the mold cavity prior to the introduction of resin material.
In some implementations, a method is provided. The method comprising making a first label and a second label for use in a molding assembly of an in-mold labeling apparatus. Making the first label comprises (i) advancing a first portion from rolled labeling material to a label making area of the in-mold labeling apparatus, (ii) printing first label information on the first portion, and (iii) cutting the first portion by at least applying a first laser beam to the first portion based on a first pattern. Making the second label comprises (i) advancing a second portion from the rolled labeling material to the label making area, (ii) printing second label information on the second portion, and (iii) cutting the second portion by at least applying a second laser beam to the second portion based on a second pattern. In this method, the second pattern is different from the first pattern.
In some implementations, an apparatus is provided. The apparatus comprises a printer roll assembly, a printer assembly, and a laser device assembly. The printer roll assembly is configured to receive rolled labeling material. The printer assembly includes a printer. The printer is configured to print at least one of a plurality of different labels onto a portion of the labeling material. The laser device assembly is configured to provide a laser beam to cut the portion into a cut portion for insertion into a mold cavity. The laser device assembly is programmable to cut a plurality of shapes.
In some implementations, a computer system is provided. The computer system comprising one or more non-transitory computer-readable mediums and program instructions. The program instructions are stored to the one or more mediums. The program instructions are executable by one or more processors to cause an in-mold labeling apparatus to perform functions comprising: (i) advancing a labeling portion from rolled labeling material to a cutting area of the in-mold labeling apparatus, (ii) controlling a laser beam to cut the labeling portion based on a pattern received by the computer system, wherein cutting the labeling portion comprises applying the laser beam to the labeling portion, and (iii) performing an in-mold labeling using the labeling portion.
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The printing subsystem 110 can include a printer roll assembly 112 and a printer assembly 114. The printer roll assembly 112 can be configured to receive rolled labeling material. The rolled labeling material can include one or more rolls of labeling material. The labeling material can be formed of any suitable material, such as polypropylene or polystyrene, among other types. The labeling material can be coated with a heat seal layer, depending on the desired implementation. In addition, the labeling material can be coated with a substrate material to which heat resistant ink can be applied, depending on the desired implementation.
The printer roll assembly 112 can be configured to receive one or more rolls of various types and sizes. In some embodiments, the printer roll assembly 112 can receive a first type of roll and a different second type of roll. For example, the first roll of labeling material can be formed of polypropylene material, and the second roll of labeling material can be formed of polystyrene material. As another example, the first roll can include labeling material of a first size, and the second roll can include labeling material of a different second size. Other possibilities exists as well.
The printer roll assembly 112 can be further configured to provide portions of the rolled labeling material to another portion of the printing subsystem 110, such as the printer assembly 114. For example, the printer roll assembly 112 can be coupled to a motor (not shown in
As mentioned above, the printing subsystem 110 can include a printer assembly 114. The printer assembly 114 can include one or more printers that are configured to print information to labeling material. The printer(s) can be of any suitable type. For example, the printer assembly 114 can include a thermal printer. The thermal printer can use technologies such as, for example, direct thermal printing or thermal transfer printing. One example of a suitable type of thermal printer is manufactured by Zebra Technologies, having model number 170xi4. Of course, the printer assembly 114 can include other types of printers. Another example of a suitable type of printer is manufactured by Intermec Technologies Corporation, having model number PM4i. Yet another example of a suitable type of printer is manufactured by QuickLabel Systems, having product name VIVO!® Touch. Other possibilities exist as well. The printer assembly 114 can include a laser printer, an ink jet printer, or both. The printer assembly 114 can include one or more color printers, monochrome printers, or printers adapted to print in color and monochrome modes, among other types of printers.
The printer assembly 114 can receive portions of labeling material from the printer roll assembly 112. For example, portions of the labeling material can be advanced one portion at a time to a printing area of the printer assembly 114. In this example, a printer of the printer assembly 114 can print information to the portion of the labeling material that is in the printing area. As another example, portions of the labeling material can be advanced multiple portions at a time to the printing area of the printer assembly 114. In this example, one or more printers of the printer assembly 114 can print labeling information to the portions when the portions are in the printing area. In this way, labeling information can be printed to labeling material in a parallel fashion. Other possibilities exists as well.
The printer(s) of the printer assembly 114 can be configured to receive data from the computer system 150 and to print labeling information based on the data. The printer(s) of the printer assembly 114 can be adapted to print various types of labeling information, including one or more images, text portions, barcodes, dates, lot numbers, and the like. The labeling information can include combinations of these and/or other types of labeling information.
In some implementations, the printer(s) of the printer assembly 114 can print the same labeling information to each portion of the labeling material that advances through the printing area. For example, a printer of the printer assembly 114 can print the same image to each portion of the labeling material that advances through the printing area. In some implementations, the printer(s) of the printer assembly 114 can print different types of labeling information to different portions of the labeling material. For example, a printer of the printer assembly 114 can alternate between printing a first image and a second image. As another example, a printer of the printer assembly 114 can print a first image for several portions of the labeling material, and can then print a second image for several subsequent portions of the labeling material. Other possibilities exist as well.
With continued reference to
The scan head 124 can be adapted to redirect laser beams emitted from the laser 122. For example, one such scan head is manufactured by SCANLAB AG, having model name SCANcube® 14. Other possibilities exist as well. The scan head 124 can be adapted to receive cutting patterns from the computer system 150 and, based on the desired cutting pattern, redirect a laser beam toward a target portion of labeling material. The cutting patterns can take the form of computer-readable instructions. For example, the scan head 124 can receive a cutting pattern that indicates that the scan head 124 is to redirect a laser beam in a rectangular pattern. In this example, the cutting pattern can further indicate the size of the rectangular pattern. Accordingly, based on the cutting pattern, the scan head 124 can redirect the laser beam to cut a portion of labeling material disposed at a target area.
A cutting pattern can be of various shapes, depending on the desired implementation. The shapes include regular shapes, such as a rectangle or a circle. In addition, the shapes include irregular shapes, which includes any shape that can be used in a desired manner on a given part or in a given mold. For example, an irregular shape can include a non-symmetrical shape. As another example, an irregular shape can include a shape that has a symmetry but includes one or more curved or otherwise irregular features. Other possibilities exist as well.
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To this end, the computer system 150 is adapted to provide instructions to and/or receive instructions from various components of the in-mold labeling apparatus 100. As an example, the computer system 150 can be adapted to provide instructions to the scan head 124 of the cutting subsystem 120. The computer subsystem 150 can, for example, provide cutting patterns to the scan head 124 to indicate how the scan head 124 is to redirect laser beams toward a target cutting area. As another example, the computer system 150 can be adapted to provide labeling information to the printer assembly 114. Accordingly, printer(s) of the printer assembly 114 can use the labeling information to print labeling information to portions of the labeling material. These examples are merely illustrative. The computer system 150 can be adapted to control components of the in-mold labeling apparatus 100 in various other ways.
The printer roll assembly 208 is shown to be provided with a single roll of labeling material. In some implementations, a printer roll assembly can be provided with multiple rolls of labeling material.
In addition, the printer roll assembly 208 is shown to be provided with a blank roll of labeling material. In some implementations, a printer roll assembly can be provided with a roll of material having printed information. For example, some or all label information can be printed on the roll of material before the roll of material is provided to the printer roll assembly 208.
Further, the label making station 202 is shown to utilize the printer roll assembly 208. In some implementations, a label making station can include a different type of assembly for receiving labeling material. For example, a label making station can include an assembly that receives a stack of pre-cut labels of one or more sheets of labeling material.
With continued reference to
The printer 214 can be adapted to print different types of label information to different portions of the labeling material 212. For example, when a first portion of the labeling material 212 is advanced to the printer 214, the printer 214 can print a first image, for example, to the first portion. Then, when a second portion of the labeling material 212 is advanced to the printer 214, the printer can print a second image, for example, to the second portion. As another example, the printer 214 can print a first image, for example, to a first batch of the labeling material 212 and, accordingly, can print the first image to several or more consecutive portions of the labeling material 212. After printing the first image to the batch, the printer 214 can print a second image, for example, to a second batch of the labeling material 212 and, accordingly, can print the second label information to several or more consecutive portions of the labeling material 212.
The printer 214 can be adapted to print label information of different sizes to different portions of the labeling material. For example, the printer 214 can print first label information of a first size to one or more portions of the labeling material 212. The printer 214 can then print second label information of a second size to one or more portions of the labeling material 212. As another example, the printer 214 can print label information in a first size to one or more portions of the labeling material 212, and can then print the same label information in a second size to one or more subsequent portions of the labeling material 212.
The printer 214 can be adapted to print label information of different shapes to different portions of the labeling material 212. For example, the printer 214 can print first label information of a first shape (for example, a rectangular image) to one or more portions of the labeling material 212. The printer 214 can then print second label information of a second shape (for example, a circular image) to one or more portions of the labeling material 212.
In other words, the printer 214 can be programmed as needed to print label information in an efficient, flexible way to meet the demands of a variety of label, mold types, and projects. In addition, some embodiments or implementations may not include or may not use a printer. For example, in some implementations, some or all label information can be printed on the roll of material before the roll of material is provided to the printer roll assembly 208.
With continued reference to
In the embodiment shown in
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The laser device 226 can be adapted to generate a laser beam having a suitable output range. In an embodiment, the laser device 226 can be a sealed CO2 laser having an output range from 10 to 200 watts. One such laser device is manufactured by Synrad Inc., having model number FSF100KD.
The beam dump apparatus 228 can be adapted to selectively absorb laser beams directed at the beam dump apparatus 228. One such beam dump apparatus is manufactured by Kentek Corporation, having product number ABD-0.75. As shown in
The collimator 232 can be adapted to change the size a laser beam directed at the collimator 232. For example, one such collimator is manufactured by Laser Mechanisms, Inc., having part number PLCOL0110. The collimator 232 can be adapted to increase the size of the laser beam. In this way, the collimator 232 can serve as a beam expander or, in other words, an up-collimator. Generally, beam collimation can be useful for creating a desired laser spot size or for controlling a diameter of the laser beam over relatively long distances.
The scan head 234 can be adapted to redirect laser beams received from the collimator 232. For example, one such scan head is manufactured by SCANLAB AG, having model name SCANcube® 14. The scan head 234 can have a beam entrance side in which a laser beam enters the scan head 234. The scan head 234 can have a beam exit side in which laser beams exit the scan head 234. In the embodiment shown in
The scan head 234 can be adapted to receive and/or store one or more cutting patterns from a computer system (not shown in
During a cutting operation, the laser device 226 can generate a laser beam. The laser beam can pass through the beam dump apparatus 228 and the collimator 232 into the scan head 234. The scan head 234 can receive the laser beam and, based on a cutting pattern, redirect the beam toward the cutting area 216. Accordingly, the laser assembly 224 can be used to cut a portion of the labeling material advanced from the roll 212.
In some implementations, the laser assembly 224 can be configured to cut different label shapes. For example, the laser assembly 224 can be configured to cut labels for parts having different sizes. Accordingly, differently sized parts can be produced using a single in-mold labeling apparatus. In addition, in some implementations, the laser assembly 224 can be programmable to adjust label shapes. Accordingly, the laser assembly 224 can provide flexibility for adjusting a shape of a label, enabling an operator to easily configure label quality. For example, an operator can cause the laser assembly 224 to slightly adjust a shape of a label to be created so that the label has a better integral fit with a molded part. In some implementations, the adjustment can be performed automatically using a computer system.
In some implementations, the laser assembly 224 can include multiple scan heads. For example, the laser assembly 224 can include a laser device that can direct a laser beam toward a beam splitter. The beam splitter can split the beam and direct each of the resulting beams toward a different scan head. Each of the scan heads can redirect the respective resulting beam toward a target area. In some implementations, each of the scan heads can redirect the respective beam toward a different target area. By incorporating a laser device with multiple scan heads in this way, a label making area can include multiple cutting areas that can operate in a parallel fashion. In some implementations, each of the scan heads can redirect the respective beam toward the same target area. These examples are merely illustrative; other possibilities exist as well.
In some implementations, the laser assembly 224 can be used to burn or otherwise imprint information onto a portion of labeling material. For example, the scan head 234 can be adapted or controlled to redirect a laser beam from the laser assembly 224 toward a target area, thereby burning information onto a portion of labeling material disposed at the target area. The information can include, for example, a product identifier or another type of registration code.
With reference to
The second slide assembly 242 can be adapted to move the vacuum pad 244 along a second axis, from a first position (represented in
At position B, the pick and place assembly 238 can transfer the cut portion of the labeling material to the robotic arm assembly 206 (shown in
The transfer portion 250 can also be adapted to transfer in-mold labeled parts from the molding station 204 to the conveyor 207 disposed near the label making station 202. In particular, the part holding portion 254 of the transfer portion 250 can include two suction portions 258a and 258b. The suction portions 258a and 258b can be adapted to generate a suction to hold in-mold labeled parts while the transfer portion 250 transfers the parts from the molding station 204 to the conveyor 207. The transfer portion discussed and depicted is an example only; other examples and arrangements are possible as well.
Methods for Creating Labels for in-Mold Labeling
Blocks 802, 804, and 806 constitute making a first label for use in a molding assembly of an in-mold labeling apparatus. At block 802, the method 800 includes advancing a first portion from rolled labeling material to a label making area of the in-mold labeling apparatus. At block 804, the method 800 includes printing first label information on the first portion. At block 806, the method 800 includes cutting the first portion by at last applying a first laser beam to the first portion based on a first pattern.
Blocks 808, 810, and 812 constitute making a second label for use in the molding assembly. At block 808, the method 800 includes advancing a second portion from the rolled labeling material to the label making area. At block 810, the method 800 includes printing second label information on the second portion. At block 812, the method 800 includes cutting the second portion by at least applying a second laser beam to the second portion based on a second pattern. In the method 800, the second pattern is different from the first pattern.
In some implementations, the method 800 includes applying the first laser beam along a perimeter of the first portion. In these implementations, the method 800 further includes applying the second laser beam along a perimeter of the second portion. In these implementations, the perimeter of the first portion can be different from the perimeter of the second portion.
In some implementations, in the method 800, the rolled labeling material includes a first roll and a second roll. In these implementations, the first portion can be from the first roll, and the second portion can be from the second roll.
In some implementations, in the method 800, the rolled labeling material includes a roll, and the first and second portions are from the roll.
In some implementations, in the method 800, the first portion is formed of a first material, the second portion is formed of a second material, and the first material is different from the second material.
In some implementations, the method 800 includes receiving shape information that is indicative of a shape of an object for use in the second in-mold labeling. In these implementations, the method 800 includes determining the second pattern based on the shape information.
In some implementations, in the method 800, the first label information is different from the second label information.
In some implementations, the method 800 includes performing an in-mold labeling using the cut first portion and the cut second portion.
In some implementations, in the method 800, making the first label and making the second label temporally overlap.
Methods for in-Mold Labeling
At block 902, the method 900 includes advancing a labeling portion from rolled labeling material to a cutting area of an in-mold labeling apparatus. In the method 900, the label information is printed on the labeling portion, either before implementation of the method or during implementation of the method. At block 904, the method 900 includes controlling a laser beam to cut the labeling portion based on a pattern received by the computer system. In the method 900, cutting the labeling portion can include applying the laser beam to the labeling portion. At block 904, the method 900 includes performing an in-mold labeling using the labeling portion.
The computer system 1000 can include various types of computing devices, such as a personal computer, server, mobile device, cellular phone, or tablet computer. The computer system 1000 can include multiple computing devices. For example, in connection with the in-mold labeling apparatus 200 shown in
Depending on the desired configuration, the system memory 1020 can be of any type, including volatile memory (such as RAM) and non-volatile memory (such as ROM, flash memory). The system memory 1020 can include one or more applications 1022 and program data 1024. The application(s) 1022 can include an index algorithm 1023 that is arranged to provide inputs to the electronic circuits. The program data 1024 can include content information 1025 that can be directed to any number of types of data. The application 1022 can be arranged to operate with the program data 1024 on an operating system.
The computer system 1000 can have additional features or functionality, and additional interfaces to facilitate communication between the basic configuration 1002 and any devices and interfaces. For example, data storage devices 1040 can be provided including removable storage devices 1042, non-removable storage devices 1044, or both. Examples of removable storage and non-removable storage devices include magnetic disk devices such as flexible disk drives and hard-disk drives (HDD), optical disk drives such as compact disk (CD) drives or digital versatile disk (DVD) drives, solid state drives (SSD), and tape drives. Computer storage media can include volatile and nonvolatile, non-transitory, removable and non-removable media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data.
The system memory 1020 and the storage devices 1040 are examples of computer storage media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, DVDs or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and that can be accessed by the computer system 1000.
The computer system 1000 can also include output interfaces 1050 that can include a graphics processing unit 1052, which can be configured to communicate with various external devices, such as display devices 1090 or speakers by way of one or more A/V ports or a communication interface 1070. The communication interface 1070 can include a network controller 1072, which can be arranged to facilitate communication with one or more other computer systems 1080 over a network communication by way of one or more communication ports 1074. The communication connection is one example of a communication media. Communication media can be embodied by computer-readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and includes any information delivery media. A modulated data signal can be a signal that has one or more of its characteristics set or changed in such a manner as to encode information in the signal. By way of example, and not limitation, communication media can include wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, radio frequency (RF), infrared (IR), and other wireless media.
The disclosed methods can be implemented as computer program instructions encoded on one or more non-transitory computer-readable storage mediums in a machine-readable format, or on other non-transitory media or articles of manufacture.
The computer program product 1100 is provided using a signal bearing medium 1101. The signal bearing medium 1101 can include one or more programming instructions 1102 that, when executed by one or more processors, can provide functionality or portions of the functionality discussed above in connection with
The one or more programming instructions 1102 can be, for example, computer executable or logic implemented instructions. A computer system (such as the computer system 1000 of
While various examples and embodiments have been disclosed, other examples and embodiments will be apparent to those skilled in the art. The various disclosed examples and embodiments are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.