The present disclosure relates generally to bag hangers for bulk bag filler equipment and, more particularly, to a system of bag hangers configured to: receive a bag support strap for loading a bag during a filling operation, and eject the bag support strap using an actuator that can be controlled from a remote location.
In bulk material handling, it is common practice to transport and store voluminous amounts of material in large fabric containers, which are often referred to as “bulk bags” or “super sacks.” These bulk bags are lifted and supported via multiple heavy duty support straps secured at various positions of the bulk bag. For example, bulk bags typically include four straps, with each strap positioned at a respective corner of the bulk bag's top side inlet.
During a filling operation, bulk bag filler equipment is utilized to load the bulk bag, support the bulk bag while being filled with material, and release the filled bulk bag. For example, the bulk bag can be hung from the bulk bag filler equipment by bag hangers that engage the plurality of support straps; thereby the bulk bag filler equipment is used to support the bulk bag to ensure an even filling of the material. Once the bulk bag is loaded, the material is supplied to the bulk bag via an opening in the top of the bulk bag. When fully filled with material, the weight of the filled bulk bag is predominantly supported by the bulk bag filler equipment (e.g., via the bag hangers). Subsequently, the weight of the filled bulk bag can be transferred to a pallet to relieve load from the bag hangers; whereupon the support straps can be released from the bag hangers, and the bulk bag can be moved from the bulk bag filler equipment for further transport. To facilitate bulk material handling operations at scale, one or more conveyor systems can be configured to move the bulk bags to and from the bulk bag filler equipment.
Various details of the present disclosure are hereinafter summarized to provide a basic understanding. This summary is not an extensive overview of the disclosure and is neither intended to identify certain elements of the disclosure, nor to delineate the scope thereof. Rather, the primary purpose of this summary is to present some concepts of the disclosure in a simplified form prior to the more detailed description that is presented hereinafter.
According to an embodiment consistent with the present disclosure, a bag hanger is provided. The bag hanger can comprise a plurality of support plates coupled together to form a body structure. Also, the bag hanger can comprise a hook that is integral with the body structure, where the hook at least partially defines a containment area and is configured to receive a bag strap. Further, the bag hanger can comprise an ejector plate positioned between the plurality of support plates and coupled to an actuator, where the actuator is coupled to the ejector plate and the body structure.
In another embodiment, a bulk bag filler equipment assembly is provided. The bulk bag filler equipment assembly can comprise a support frame comprising a support rail. The bulk bag filler equipment assembly can also comprise a bag hanger mounted to the support rail. The bag hanger comprises a hook that is integral with a body of the bag hanger and an ejector plate at least partially positioned within the body. Also, the ejector plate is configured to translate between a loading position and an ejecting position while the hook remains in a fixed position. Further, the bulk bag filler equipment assembly can comprise a fluid control system coupled to the bag hanger, wherein the fluid control system is configured to control operation of the ejector plate.
In a further embodiment, a method for filling a bulk bag is provided. The method can comprise loading a support strap of the bulk bag onto a hook of a bag hanger. The hook can be integral with a body of the bag hanger, and wherein the bag hanger comprises an ejector plate coupled to an actuator. The method can also comprise supplying a material to the bulk bag. Additionally, the method can comprise ejecting the support strap from the hook via a movement of the ejector plate that is driven by the actuator. The ejector plate can move from a loading position to an ejecting position while the hook remains in a fixed position.
Any combinations of the various embodiments and implementations disclosed herein can be used in a further embodiment, consistent with the disclosure. These and other aspects and features can be appreciated from the following description of certain embodiments presented herein in accordance with the disclosure and the accompanying drawings and claims.
Embodiments of the present disclosure will now be described in detail with reference to the accompanying figures. Like elements in the various figures may be denoted by like reference numerals for consistency. Further, in the following detailed description of embodiments of the present disclosure, numerous specific details are set forth in order to provide a more thorough understanding of the claimed subject matter. However, it will be apparent to one of ordinary skill in the art that the embodiments disclosed herein may be practiced without these specific details. In other instances, well-known features have not been described in detail to avoid unnecessarily complicating the description. Additionally, it will be apparent to one of ordinary skill in the art that the scale of the elements presented in the accompanying Figures may vary without departing from the scope of the present disclosure.
Conventionally, bulk bag filler equipment utilizes a clamping mechanism in which bag hangers are manually operated into an open or closed state. For example, support straps are manually released from the bag hangers by an operator after the bulk bag is filled and before transportation beyond the filling station. Releasing the bulk bag from the bag hangers can be difficult and/or a safety concern because the operator often has limited access to the clamping mechanism (e.g., the operator may only have access to one side of the bulk bag filler equipment). For instance, the position and/or architecture of the bulk bag filler equipment, along with the presence of additions systems (e.g., conveyor systems) and/or obstructions, can limit accessibility to the bag hangers once the bulk bag is filled.
For example, when loading the empty bulk bag onto the bulk bag filler equipment, the operator will often step on a support structure (e.g., a pallet) to reach the clamping mechanism on the far side of the equipment; however, when the filled bulk bag is positioned over the support structure (e.g., at least partially residing on the pallet), the operator's access to the far side of the bulk bag filler equipment is inhibited. As such, manual operation of the bag hangers located on the far side of the bulk bag filler equipment can likewise be inhibited (e.g., especially regarding to attempts to release the support strap from the clamping mechanism).
Embodiments in accordance with the present disclosure generally relate to one or more actuator driven bag hangers for bulk filler equipment. In various embodiments, each bag hanger can comprise an integral hook configured to receive a support strap of a bulk bag. Access to the hook can be controlled by a clasp, which can translate between an open position and a closed position. While in the open position (e.g., engaged via manual operation of the clasp), the clasp can enable the support strap to access and engage the hook. While in the closed position, the clasp can inhibit migration of the support strap from a containment area defined by the hook. In one or more embodiments, the bag hanger can further comprise an ejector plate operably coupled to an actuator (e.g., a pneumatic or hydraulic cylinder), where the ejector plate can translate between a loading position and an ejecting position. While in the loading position, the ejector plate can remain absent from the hook's containment area (e.g., the clasp can be manually positioned to the open position while the ejector plate is in the loading position to facilitate loading of a bulk bag, where the retracted state of the ejector plate can allow one or more support straps to engage the hook). While in the ejecting position, the ejector plate can occupy the containment area.
As the ejector plate transitions from the loading position to the ejecting position, the ejector plate can displace materials occupied within the containment area. For example, where a support strap is positioned in the containment area, the ejector plate can displace the support strap out of the containment area (e.g., free of the hook). Thereby, the ejector plate can, at the control of the actuator, release a captured support strap from confinement on the hook. Further, in one or more embodiments, a positioning arm can extend between the clasp and the ejector plate; thereby, movement of the ejector plate can cause movement of the clasp. For example, as the ejector plate translates from the loading position to the ejecting position, the ejector plate can engage the positioning arm to impart a force onto the clasp; where the force can push the clasp to the open position, thereby providing an exit route for the support strap.
Advantageously, the integral nature of the hook with a body of the bag hanger can prevent inadvertent release of a loaded bulk bag (e.g., inadvertent release of a captured support strap). Further, the one or more bag hangers can include an adjustable mounting structure, such that the position and/or alignment of the one or more bag hangers can be modified and/or rearranged in relation to a support frame of the bulk bag filler equipment. The adjustability of a bag hanger's location can facilitate access to the one or more bag hangers while loading a bulk bag onto the bulk bag filler equipment. Moreover, the bag hangers can be operated via a separate control module; thereby enabling remote ejection of loaded support straps post fill operation. Remote ejection of the support straps can overcome access constraints and/or improve speed and efficiency of operations. For example, remote operation of the bag hanger's ejector plates can enable automatic release protocols for bulk bags that have been loaded with material, which can be executed in conjunction with high-throughput systems (e.g., powered roller conveyor systems) to expedite bag unloading and transportation procedures. In various embodiments, the force exerted by one or more actuators driving the ejector plate can be controlled (e.g., limited) to prevent inadvertent unloading of a support strap from the bag hanger. For example, the force exerted by the one or more actuators can be controlled via regulator pressure and/or the use of a pressure relief valve.
As shown in
Each of the bag hangers 102 can be coupled to a fluid control system 107 via a plurality of tubes 116 extending between a respective actuators 118 of the bag hangers 102 and one or more valves 120 (e.g., a solenoid valve) of the fluid control system 107. In one or more embodiments, the actuators 118 can be linear actuators, such as pneumatic or hydraulic cylinders.
In various embodiments, the one or more actuators 118 can be electric actuators, and the fluid control system 107 can be replaced with an electric control system (not shown). For example, the one or more actuators 118 can include one or more electric motors and/or integrated circuits (e.g., where an integrated circuit can facilitate control of an electric motor to drive a rod between an extended position and a retracted position). For instance, the one or more actuators 118 can be operably coupled (e.g., via one or more direct electrical connections, such as wires, or wireless connections) to one or more control modules to execute the various features described herein.
As shown in
As shown in
In one or more embodiments, each of the support plates 404 can have a top portion that includes a mounting channel 410 that can facilitate engagement with a support frame 108. For example, the mounting channel 410 can be defined by aligned grooves in the top portion of each support plate 404. For instance, the grooves can have a U-shape, where the top of the groove can be open to receive a support rail 110 (e.g., as shown in
In various embodiments, the support plates 404 can further comprise a mounting passageway 412 that travels through a lateral direction (e.g., represented by the “Z” axis in
Additionally, the support plates 404 can have a bottom portion that includes a hook 414. As shown in
In one or more embodiments, the hook 414 can at least partially define a containment area 422 configured to receive and hold a support strap 104 of the bulk bag 106. For example: a bottom side of the containment area 422 can be defined by a sidewall 422a (e.g., a sidewall sloped towards the stem portion 416) of the protruding portion 418; a first side of the containment area 422 can be defined by a sidewall 422b of the stem portion 416; a top side of the containment area 422 can be defined by a sidewall 422c of the body 402 of the bag hanger 102; and a second side of the containment area 422 can be defined by an inner sidewall 422d of the clasp 204.
In various embodiments, the clasp 204 can be composed of metal. Also, the clasp 204 can extend from the support plates 404 to a distal end 424. The clasp 204 can be configured to translate between an open position and a closed position. For example, the clasp 204 can be fixed to the supporting plates 404 at a first pivot point 425a (e.g., comprising a rod extending through the clasp 204 and the support plates 404 along the lateral direction of the bag hanger 102) about which the clasp 204 can rotate between the open and closed positions.
As shown in
As shown in
As described herein, the bag hanger 102 can also include one or more actuators 118 (e.g., pneumatic, hydraulic, or electric cylinders). For example, an actuators 118 can be coupled to a first side of the support plates 404 that is opposite a second side of the support plates 404, where the hook 414 and/or clasp 204 are located. For instance, each of the support plates 404 can comprise a rear protrusion 432, to which a first end of the actuators 118 can be fixed. Additionally, a second end of the actuators 118 can be fixed to the ejector plate 202. Thus, the actuators 118 can be positioned between rear protrusions 432 of the support plates 404 and the ejector plate 202 at a rearward face of the bag hanger 102. In various embodiments, the actuator 118 can be coupled to the body 402 of the bag hanger 102 at an angle (e.g., as shown in
The ejector plate 202 can be coupled to, and positioned between, the support plates 404 (e.g., as shown in
For instance, the actuator 118 can be operated between a retracted or extended state. While the actuator 118 is in the retracted state, the ejector plate 202 can be pulled away from the protruding portion 418 of the hook 414. As the actuator 118 extends, the ejector plate 202 can be pushed towards the protruding portion 418 of the hook 414. Further, the speed of operation of the actuator 118, and thereby the speed of movement of the ejector plate 202, can be regulated via the fluid control system 107 (e.g., speed control mufflers 122). In another instance, the speed of operation of the actuator 118, and thereby the speed of movement of the ejector plate 202, can be regulated via an electronic control system (e.g., via one or more electronic methods, such as configuration settings programmable via one or more integrated circuits of an electronic actuator).
In various embodiments, the clasp 204 can further include one or more positioning arms 502 configured to set the position of the clasp 204 as a function of the position of the ejector plate 202. As shown in
A comparison of
Additionally, as the ejector plate 202 moves into the ejecting position, the ejector plate 202 comes to occupy the containment area 422; thereby the ejector plate 202 can displace any materials (e.g., support straps 104) positioned within the containment area 422 while the ejector plate 202 was in the loading position. For example, the surface of the ejector plate 202 that faces the containment area 422 can be sloped away from the stem portion 416 so as to enable a support strap 104 to slide down the ejector plate 202 and away from the bag hanger 102 when the ejector plate 202 is in the ejecting position. Moreover, the clasp 204 can be held in the open position via the positioning arm 502 abutting the ejector plate 202; thereby ejection of the support strap 104 from the containment area 422 can be uninhibited by the clasp 204 while the ejector plate 202 is in the ejecting position. While the ejector plate 202 and/or the clasp 204 move between positions, the hook 414 can remain fixed in place due to the hook's 414 integral nature with the body 402 of the bag hanger 102. In accordance with the various features described herein, the shape of the ejector plate 202 can vary based on, for example, the dimensions of the hook 414 and/or containment area 422. For instance, the angle exhibited by the sloped surface of the ejector plate 202 can be greater than, or less than, the angle depicted in
In accordance with various embodiments described herein, movement of the ejector plate 202 can be controlled by the actuator 118. For example,
Further, the clasp 204 can be manually moved to the open position, where the ejector plate 202 remains in the loading position. Manually moving the clasp 204 to the open position can enable access to the containment area 422 (e.g., unoccupied by the ejector plate 202), and thereby can facilitate loading of a support strap 104 onto the hook 414 and into the containment area 422. Once the support strap 104 is loaded onto the hook 414 (e.g., as shown in
As shown in
At 702, the filling operation 700 can comprise lifting the clasp 204 of a bag hanger 102 to the open position. For example, the clasp 204 can be manually lifted to enable access to the hook 414 of the bag hanger 102. The clasp 204 operation at 702 can be repeated for each of the available bag hangers 102 of an equipment assembly 100.
At 704, the filling operation 700 can comprise loading a support strap 104 of a bulk bag 106 onto the exposed hook 414 of the bag hanger 102. For example, the support strap 104 can be positioned within a containment area 422 at least partially defined by, and supported by, a hook 414. Due to the integral nature of the hook 414 with the body 402 of the bag hanger 102, the support strap 104 can be loaded onto the hook 414 with a mitigated risk of inadvertent ejection. The loading operation at 704 can be repeated for each of the available bag hangers 102 of the equipment assembly 100.
At 706, the filling operation 700 can comprise releasing the clasp 204 to enable the clasp 204 to return to a closed position (e.g., as shown in
At 708, the filling operation 700 can comprise supplying a material to an inner volume of the bulk bag 106. For example, the material can be supplied to the bulk bag 106 via the material inlet 126. As the bulk bag 106 is filled with the material, the increasing weight of the bulk bag 106 can be supported by the one or more bag hangers 102, and thereby by a support frame 108 to which the bag hangers 102 are mounted.
In one or more embodiments, the one or more bag hangers 102 can be mounted to a support frame 108 that is a part of a height adjustable apparatus (e.g., wherein the height of the support frame 108 can be lower or raised), and the filling operation 700 can proceed to 710. Alternatively, in one or more embodiments the one or more bag hangers 102 can be mounted to a support frame 108 positioned over a height adjustable loading platform (e.g., where the height of the loading platform can be lowered or raised), and the filling operation 700 can proceed to 712.
At 710, the filling operation 700 can comprise lowering the support frame 108 to which the bag hanger 102 is mounted. For example, the support frame 108, and thereby the bag hanger 102, can be lowered towards a loading platform (not shown) configured to support the weight of the filled bulk bag 106. The support frame 108 can be lowered until the weight of the filled bulk bag 106 is supported by the loading platform and relieved from the bag hangers 102.
At 712, the filling operation 700 can comprise raising the loading platform that is positioned under the support frame 108. For example, the loading platform can be raised toward the filled bulk bag 106 while the support frame 108, and thereby the bag hangers 102, remain in at a fixed height. The loading platform can be raised until the weight of the filled bulk bag 106 is supported by the loading platform and relieved from the bag hangers 102.
At 714, the filling operation 700 can comprise remote ejecting the support strap 104 from the hook 414 via actuation (e.g., pneumatic, hydraulic, or electric driven) of an ejector plate 202 of the bag hanger 102, which can lift the clasp 204 to the open position and force the support strap 104 out of the bag hanger 102. For example, the ejector plate 202 can be operably coupled to an actuator 118 which can extend to drive the ejector plate 202 into the containment area 422. As the ejector plate 202 is driven into the containment area 422, the ejector plate 202 can engage the positioning arm 428 of the clasp 204 and force the clasp into the open position (e.g., as shown in
In one or more embodiments, the actuator 118 can be controlled remotely via a fluid control system 107 or an electric control system (e.g., via a wired or wireless connection). In some embodiments, each bag hanger 102 mounted to the support frame 108 can be operated by a single fluid control system 107 in unison. In other embodiments, a subset of the bag hangers 102 mounted to the support frame 108 can be operated by a first fluid control system 107 or first electric control system, while another subset of the bag hangers 102 can be operated by a second fluid control system 107 or second electric control system; thereby, the subsets of bag hangers 102 can be operated independent of each other.
Where the one or more bag hangers 102 are mounted to a support frame 108 that is a part of a height adjustable apparatus the filling operation 700 can proceed to 715. Alternatively, where the one or more bag hangers 102 are mounted to a support frame 108 positioned over a height adjustable loading platform, the filling operation 700 can proceed to 716.
At 716, the filling operation 700 can comprise raising the support frame 108 to which the bag hanger 102 is mounted. For example, the support frame 108 can be raised to a ready position to facilitate the loading of another bulk bag.
At 718, the filling operation 700 can comprise lowered the loading platform that is positioned under the support frame 108. For example, the loading platform can be lowered to a ready position to facilitate the loading of another bulk bag.
At 720, the filling operation 700 can comprise transporting the filled bulk bag away from the support frame 108 and/or the bag hanger 102. For example, the loading platform (e.g., a pallet) can be transported to another location for further processing and/or delivery.
At 722, the filling operation 700 can comprise retracting the ejector plate 202. For example, retraction of the ejector plate 202 can be also be controlled via the actuator 118 and the fluid control system 107. As the ejector plate 202 is retracted from the containment area 422, the clasp 204 can be biased to return to the closed position.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, for example, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “contains”, “containing”, “includes”, “including,” “comprises”, and/or “comprising,” and variations thereof, when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Terms of orientation are used herein merely for purposes of convention and referencing and are not to be construed as limiting. However, it is recognized these terms could be used with reference to an operator or user. Accordingly, no limitations are implied or to be inferred. In addition, the use of ordinal numbers (e.g., first, second, third, etc.) is for distinction and not counting. For example, the use of “third” does not imply there must be a corresponding “first” or “second.” Also, as used herein, the terms “coupled” or “coupled to” or “connected” or “connected to” or “attached” or “attached to” may indicate establishing either a direct or indirect connection, and is not limited to either unless expressly referenced as such.
While the disclosure has described several exemplary embodiments, it will be understood by those skilled in the art that various changes can be made, and equivalents can be substituted for elements thereof, without departing from the spirit and scope of the invention. In addition, many modifications will be appreciated by those skilled in the art to adapt a particular instrument, situation, or material to embodiments of the disclosure without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, or to the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims. Moreover, reference in the appended claims to an apparatus or system or a component of an apparatus or system being adapted to, arranged to, capable of, configured to, enabled to, operable to, or operative to perform a particular function encompasses that apparatus, system, or component, whether or not it or that particular function is activated, turned on, or unlocked, as long as that apparatus, system, or component is so adapted, arranged, capable, configured, enabled, operable, or operative.
Number | Date | Country | |
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63498987 | Apr 2023 | US |