Stacking device for plastic bag carrier trays

Abstract

The utility model relates to the technical field of plastic bag processing, concretely to a kind of plastic bag bearing tray's stacking device, including operation platform, the tabletop of operation platform is equipped with two groups of frame plate oppositely distributed, and bottom is equipped with push top subassembly, and the side opposite of frame plate is all equipped with conveying device, and is fixed with the board located above corresponding conveying device.The plastic bag bearing tray's stacking device, through the collaborative work of conveying device, push component, push component and push top subassembly, realizes the full automation operation of empty bearing tray from conveying, support to lifting stacking, without manual intervention, effectively matches the continuous operation rhythm of production line, gets rid of the physiological limit of manual operation, can continuously and stably complete stacking work, avoids bearing tray to accumulate and stay in conveying terminal, improves collection stacking efficiency, reduces the human input of special person responsible for stacking, reduces the long-term human cost expenditure of enterprise.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag processing technology, specifically to a stacking device for plastic bag carrier trays. Background Technology

[0002] In the plastic bag production process, after slitting and printing, the plastic bags are typically transported on pallets to ensure their stability during transport. Once the pallets are moved to the transfer station by the conveyor, the plastic bags are removed by transfer equipment such as suction cups, and the empty pallets continue to be transported to the end of the conveyor. In traditional production models, the collection and stacking of these empty pallets is mainly done manually; workers must manually arrange and stack the scattered empty pallets into neat stacks at the end of the conveyor.

[0003] However, manual palletizing has significant drawbacks: on the one hand, the speed of manual operation is limited by physiology, making it difficult to match the continuous operation rhythm of the conveyor. This can easily cause pallets to accumulate and stagnate at the end of the conveyor, affecting the smooth operation of the production line and resulting in low collection efficiency. On the other hand, with the continuous rise in labor costs, long-term arrangement of dedicated personnel to palletizing will significantly increase the company's production costs. At the same time, repetitive manual operations can easily lead to fatigue, which may result in irregular palletizing and increase the difficulty of subsequent storage and handling. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a stacking device for plastic bag carrier trays, comprising an operating table, on which two sets of oppositely distributed racks are provided, and a pushing component is installed at the bottom. A conveying device is installed on one side of each rack, and a corresponding plate is fixed above the conveying device. A pushing component is installed on one of the racks, which passes through the corresponding plate. A gap is left between the conveying device and the plate. Oppositely distributed pushing components are installed on each rack, and a shelf passing through the space between the conveying device and the plate is fixed at the pushing end of the pushing component.

[0005] Furthermore, a fixed seat is installed on the top of the operating table, and a movable seat is slidably mounted opposite to the fixed seat. A lead screw device and multiple guide rods are installed on the inner side. The fixed seat and the movable seat are respectively fixed to the bottom of the corresponding frame plate. The nut end of the lead screw device is fixed to the movable seat. A rectangular block fixed to the movable seat is sleeved on the guide rod. The pushing assembly is respectively installed on the rectangular block and the fixed seat.

[0006] Furthermore, the pushing assembly includes a base plate fixed between the bottoms of the rectangular blocks and the bottom of the fixed seat respectively. The base plate on the fixed seat is connected to the lead screw of the lead screw device. An upper pushing cylinder is installed on the opposite side of the base plate. The piston rod of the upper pushing cylinder is fixed to the upper pushing plate. Multiple top columns are fixed on the upper pushing plate, which are connected to the corresponding fixed seat and the moving seat respectively and extend to the operating table. A lifting plate is fixed between the tops of the top columns on the same side.

[0007] Furthermore, the counter-pushing assembly includes a seat plate fixed on the frame plate, multiple sill plates, and multiple through-through columns. A counter-pushing cylinder is installed on the seat plate, and a counter-pushing plate located at the sill opening is inserted between the multiple columns. The back of the counter-pushing plate is fixedly connected to the piston rod of the counter-pushing cylinder, and an upper plate is installed on the top of the counter-pushing plate. The shelf is installed on the upper plate.

[0008] Furthermore, the pushing assembly includes a main shaft and an auxiliary shaft rotatably connected to the frame plate, and a side-push cylinder hingedly mounted. The piston rod of the side-push cylinder is hinged to a side-push plate fixed to one end of the main shaft. Multiple main blocks are locked and fixed to the outside of the main shaft. Multiple auxiliary blocks are rotatably connected to the outside of the auxiliary shaft. A top block passing through the plate is rotatably connected between the main blocks and the corresponding auxiliary blocks.

[0009] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0010] This plastic bag pallet pallet stacking device achieves fully automated operation of empty pallets from conveying and supporting to lifting and stacking through the coordinated work of the conveying device, pushing component, counter-pushing component, and top-pushing component. It requires no manual intervention, effectively matches the continuous operation rhythm of the production line, and eliminates the physiological limitations of manual operation. It can continuously and stably complete the palletizing work, avoids the accumulation and stagnation of pallets at the end of the conveying process, improves collection and palletizing efficiency, reduces the manpower input for dedicated palletizing, and reduces the long-term labor cost expenditure of enterprises. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from behind.

[0013] Figure 3 This is a three-dimensional schematic diagram of the spindle connection structure in this utility model;

[0014] Figure 4 This is a three-dimensional schematic diagram of the lead screw device connection structure in this utility model;

[0015] Figure 5 This is a three-dimensional schematic diagram of the shelf connection structure in this utility model.

[0016] In the diagram: 1. Operating platform; 2. Screw assembly; 3. Guide rod; 4. Rectangular block; 5. Base plate; 6. Top cylinder; 7. Top plate; 8. Top column; 9. Lifting plate; 10. Fixed seat; 11. Moving seat; 12. Frame plate; 13. Side push cylinder; 14. Side push plate; 15. Main shaft; 16. Main block; 17. Auxiliary shaft; 18. Auxiliary block; 19. Top block; 25. Alignment plate; 26. Conveying device; 27. Seat plate; 28. Alignment cylinder; 29. ​​Sill plate; 30. Alignment plate; 31. Column; 32. Top plate; 33. Shelf. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-5 This embodiment of a plastic bag pallet stacking device includes an operating table 1. The operating table 1 has two sets of oppositely distributed racks 12. Each rack 12 has a conveying device 26 installed on its opposite side. An infrared sensor is installed on the inner side of the conveying device 26 to convey empty plastic bag pallets. The infrared sensor senses the conveyed pallet and allows it to stop at a designated position. A counter plate 25 is fixed on the rack 12 above the conveying device 26. The counter plate 25 limits the lifting of the pallet.

[0019] like Figure 2 and 4 A fixed seat 10 is fixedly installed on the top right side of the operating table 1, and a movable seat 11 is slidably installed on the top left side. The fixed seat 10 and the movable seat 11 are respectively fixed to the bottom of the corresponding frame plate 12. A screw device 2 and two guide rods 3 are installed on the inner side of the operating table 1. The nut end of the screw device 2 is fixed to the movable seat 11, and a rectangular block 4 fixed to the movable seat 11 is sleeved on the guide rod 3. By driving the screw of the screw device 2 to rotate, the distance between the movable seat 11 and the fixed seat 10 can be adjusted, thereby adjusting the distance between the two sets of frame plates 12 to adapt to different sized bearing plates. The rectangular block 4 slides along the guide rod 3 with the movable seat 11 to ensure the stability of the movement.

[0020] The bottom of both the fixed seat 10 and the movable seat 11 is equipped with a pushing assembly. The pushing assembly includes a base plate 5 fixed between the bottoms of the two rectangular blocks 4 and on the bottom of the fixed seat 10. The base plate 5 on the fixed seat 10 is connected to the lead screw of the lead screw device 2. An upper lifting cylinder 6 is installed on the opposite side of the base plate 5. The piston rod of the upper lifting cylinder 6 is fixed to an upper lifting plate 7. Two top columns 8 are fixed on the upper lifting plate 7. The top columns 8 are connected to the corresponding fixed seat 10 and movable seat 11 and extend to the operating table 1. A lifting plate 9 is fixed between the tops of the top columns 8 on the same side. When the conveying device moves the carrier plate to the designated position, the upper lifting cylinder 6 extends, pushing the upper lifting plate 7, top columns 8 and lifting plate 9 to rise. The lifting plate 9 lifts the carrier plate from below, raising the carrier plate to a preset height. If there is already a carrier plate above, it can be lifted by the carrier plate above until the preset height is reached.

[0021] like Figure 2 and 5 A gap is left between the conveying device 26 and the counter plate 25. The counter-pushing components are installed on the frame plate 12. The counter-pushing components include a seat plate 27 fixed on the frame plate 12, two sill plates 29 and a pair of columns 31 passing through. A counter-pushing cylinder 28 is installed on the seat plate 27. A counter-pushing plate 30 fixed to the piston rod of the counter-pushing cylinder 28 is passed through between the pair of columns 31. The counter-pushing plate 30 is located in the sill of the sill plate 29. The sill plate 29 plays a guiding and limiting role in the movement of the counter-pushing plate 30. A top plate 32 is installed on the top of the push plate 30, and a shelf 33 is installed on the top plate 32. The shelf 33 passes through the gap between the conveyor 26 and the plate 25. After the carrier plate is lifted to a preset height by the lifting plate, the push cylinder 28 extends and pushes the push plate 30 to move inward along the column 31, which drives the shelf 33 to move below the carrier plate, thus supporting the stacked carrier plate. This allows the lifting plate to retract in preparation for the next lifting, improving the stability of the stacked carrier plate.

[0022] like Figure 1 and 3A pushing assembly is installed on the front shelf 12. The pushing assembly includes a main shaft 15 rotatably connected to the shelf 12 and an auxiliary shaft 17 located above the main shaft 15. A side-push cylinder 13 is also hinged to the left side of the front of the shelf 12. The piston rod of the side-push cylinder 13 is hinged to a side-push plate 14 fixed to the left end of the main shaft 15. Two main blocks 16 are locked to the outside of the main shaft 15, and two auxiliary blocks 18 are rotatably connected to the outside of the auxiliary shaft 17. A top block 19 is hinged between the main blocks 16 and the corresponding auxiliary blocks 18. The top block 19 extends through the opposite plate 25 to above the conveying device 26. When the shelf carries... When the pallet is supported, the side push cylinder 13 extends, pushing the side push plate 14 to rotate, which in turn drives the main shaft 15 to rotate. The main block 16 rotates with the main shaft 15 and pushes the top block 19 to the other side. The auxiliary block 18 rotates with the top block 19 to assist in guidance. The top block 19 pushes the pallet to the other side of the plate 25 to clamp and fix the pallet. After fixing, the shelf retracts, waiting for the next set of pallets to be lifted. When it is in contact with the bottom pallet above, the top block retracts, and the lifting plate continues to rise to push the pallet to the preset position. At this time, the shelf pushes out the support again, and the lifting plate retracts at the same time. This cycle is repeated to complete the stacking.

[0023] The working principle of the above embodiments is as follows:

[0024] Before the pallet is conveyed, the spacing of the devices can be adjusted according to the size of the pallet. When the lead screw device inside the operating table drives the lead screw to rotate, its nut end drives the moving seat to move. The rectangular block at the bottom of the moving seat slides along the guide rod to ensure the stability of the movement. The spacing between the moving seat and the fixed seat changes accordingly, thereby adjusting the spacing between the two sets of frame plates so that the device can adapt to pallets of different sizes. When the pallet is conveyed, the conveying device transports the empty pallet to the designated position. After the infrared sensor senses the pallet, it stops precisely at that position. At this time, the plates on the frame plate limit the lifting of the pallet, ensuring that the position of the pallet is stable during the lifting process. After the pallet reaches the designated position, the pushing component starts to work. The top cylinders at the bottom of the fixed and movable seats extend, pushing the top plate, top column, and lifting plate upwards. The lifting plate lifts the carrier plate from below, raising it to a preset height. If there is already a carrier plate above, the initial stacking is completed by lifting the upper carrier plate from the top. After the lifting plate raises the carrier plate to the preset height, the counter-pushing assembly is activated. The counter-pushing cylinders on the shelf extend, pushing the counter-pushing plate inwards along the column. The counter-pushing plate moves within the notch of the sill plate, ensuring accurate movement. The counter-pushing plate drives the shelf through the gap between the conveyor and the counter-pushing plate, moving it to below the carrier plate, providing stable support and allowing the lifting plate to retract, preparing for the lifting of the next set of carrier plates and improving the continuity of the stacking process. For stability, after the shelf supports the carrier tray, when the lifting plate lifts another set of carrier trays, the pushing component starts to operate. The side push cylinder extends, pushing the side push plate to rotate, which in turn drives the main shaft to rotate. The main block on the main shaft rotates with the main shaft and pushes the top block to the other side. The auxiliary block on the auxiliary shaft rotates with the top block to assist in guidance. The top block pushes the carrier tray to the other side of the plate to achieve clamping and fixing of the carrier tray. After fixing, the shelf retracts. When the carrier tray is in contact with the bottommost carrier tray, the top block retracts, and the lifting plate continues to rise to push the carrier tray to the preset position. At this time, the shelf pushes out again to support, the lifting plate retracts, and one stacking cycle is completed. By continuously repeating the above process, continuous and stable stacking of carrier trays is achieved.

[0025] The entire workflow, through the coordinated action of various components, achieves automated support, lifting, and stacking of empty pallets without manual operation, effectively improving palletizing efficiency and uniformity, and reducing enterprise production costs.

[0026] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0027] It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A palletizing device for plastic bag carrier trays, comprising an operating table (1), characterized in that: The operating table (1) has two sets of oppositely distributed racks (12) on its surface and a pusher assembly installed at the bottom. Each rack (12) has a conveyor (26) installed on one side opposite to the other, and a counter plate (25) fixed above the corresponding conveyor (26). One of the racks (12) has a pusher assembly that passes through the counter plate (25). There is a gap between the conveyor (26) and the counter plate (25). Each rack (12) has oppositely distributed pusher assemblies installed on it. The pusher end of the pusher assembly is fixed with a shelf (33) that passes through the space between the conveyor (26) and the counter plate (25).

2. The palletizing device for a plastic bag carrier tray according to claim 1, characterized in that: The top of the operating table (1) is equipped with a fixed seat (10) and a movable seat (11) that slides opposite to the fixed seat (10). The inner side is equipped with a screw device (2) and multiple guide rods (3). The fixed seat (10) and the movable seat (11) are respectively fixed to the bottom of the corresponding frame plate (12). The nut end of the screw device (2) is fixed to the movable seat (11). A rectangular block (4) fixed to the movable seat (11) is sleeved on the guide rod (3). The push assembly is respectively installed on the rectangular block (4) and the fixed seat (10).

3. The palletizing device for a plastic bag carrier tray according to claim 2, characterized in that: The push assembly includes a base plate (5) fixed between the bottom of the rectangular block (4) and the bottom of the fixed seat (10). The base plate (5) on the fixed seat (10) is connected to the screw of the screw device (2). An upper push cylinder (6) is installed on the opposite side of the base plate (5). The piston rod of the upper push cylinder (6) is fixed to an upper push plate (7). Multiple push columns (8) are fixed on the upper push plate (7) and are connected to the corresponding fixed seat (10) and movable seat (11) and extend to the operating table (1). A lifting plate (9) is fixed between the tops of the push columns (8) on the same side.

4. The palletizing device for a plastic bag carrier tray according to claim 3, characterized in that: The counter-pushing assembly includes a seat plate (27) fixed on the frame plate (12), multiple sill plates (29) and multiple columns (31) passing through it. A counter-pushing cylinder (28) is installed on the seat plate (27). A counter-pushing plate (30) located at the sill of the sill plate (29) is passed through between the multiple columns (31). The back of the counter-pushing plate (30) is fixedly connected to the piston rod of the counter-pushing cylinder (28). An upper plate (32) is installed on the top of the counter-pushing plate (30). The shelf (33) is installed on the upper plate (32).

5. The palletizing device for a plastic bag carrier tray according to claim 4, characterized in that: The pushing assembly includes a main shaft (15) and an auxiliary shaft (17) rotatably connected to the frame plate (12), and a side-push cylinder (13) hingedly mounted. The piston rod of the side-push cylinder (13) is hinged to a side-push plate (14) fixed to one end of the main shaft (15). Multiple main blocks (16) are locked and fixed to the outside of the main shaft (15). Multiple auxiliary blocks (18) are rotatably connected to the outside of the auxiliary shaft (17). A top block (19) passing through the plate (25) is rotatably connected between the main block (16) and the corresponding auxiliary block (18).

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