Stacking tray reverse conveying device for packaging

By designing a reverse pallet conveying device and using forward and reverse controllers to control the motor direction, the problem of pallets not being able to return to their original position in nylon chemical packaging lines was solved, achieving smooth pallet conveying and efficient material discharge, and reducing packaging material consumption and production costs.

CN223822184UActive Publication Date: 2026-01-23PINGDINGSHAN SHENMA ENG PLASTICS
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Patent Information

Application Number
CN202520385143.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-01-23
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

During the conversion process, the existing nylon chemical packaging line cannot return the pallets, and the unfilled packaging bags cannot be used, resulting in significant damage to the packaging bags, increased production costs, and increased labor intensity for workers.

Method used

Design a pallet reverse conveying device, which controls the rotation direction of the conveyor motor through a forward and reverse controller to achieve smooth pallet conveying and efficient discharge of materials from the cleaning silo.

Benefits of technology

It effectively ensures smooth pallet conveying, reduces packaging material consumption, lowers production costs, and improves enterprise efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a stack tray reverse conveying device for packaging, which comprises a stack tray, a conveying roller, a transmission motor, a chain, a photoelectric detector, a limiting mechanism, a forward rotation control button, a reverse rotation control button, a reflective photoelectric detector, a heat sealing area and a material receiving area, the transmission motor drives the chain to drive the conveying roller to form a roller conveying mechanism, and the stack tray is placed on the conveying roller. The material receiving area and the heat sealing area are located at the front end and the rear end of the roller conveying mechanism correspondingly, and a stock bin is arranged right above the material receiving area. A detection photoelectric part and a reflection photoelectric part are arranged between the material receiving area and the heat sealing area, and the forward rotation control button and the reverse rotation control button are arranged on one side of the heat sealing area. The stacking tray conveying device is reasonable in structure and ingenious in design, effectively guarantees smooth conveying of stacking trays, reduces consumption of packaging materials, effectively reduces cost, improves enterprise revenue, and has good market prospects and development space compared with the prior art.
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Description

Technical Field

[0001] This utility model relates to the technical field of packaging equipment for nylon chemical production, specifically to a reverse conveying device for packaging pallets. Background Technology

[0002] The existing nylon chemical packaging line handles products of various grades and colors. These products share the same metering system, leading to frequent silo cleaning during packaging. Approximately 100 kg of material is used each time to clean the silo, then discharged into packaging bags via a weighing scale, and finally removed from the packaging line by pallets. During the next silo cleaning, because the pallets cannot be returned, unfilled bags cannot be reused, and new bags must be used to receive the discharged material.

[0003] In normal production, after each production switch, the finished product silo must be cleaned with the first batch of material. Alternatively, when packaging two different types of materials under the same weighing scale, approximately 100 kg of material must be used each time to clean the hopper before being discharged into packaging bags via the weighing scale and then discharged from the packaging line via pallets. Only then can the normal packaging process proceed. During the next silo cleaning or frequent hopper cleaning, because the pallets cannot be returned to their original positions, unfilled packaging bags cannot be reused, and new packaging bags must be used for discharge. Then, the bottoms of multiple packaging bags need to be cut open, and the materials inside are combined into one bag according to weight requirements. This results in significant bag damage, increased production costs, and increased labor intensity for workers.

[0004] How to design a pallet reverse conveying device for packaging that is structurally sound, ingeniously designed, effectively ensures smooth pallet transport, reduces packaging material consumption, effectively lowers costs, and improves enterprise efficiency is a problem that needs to be solved. Utility Model Content

[0005] To address the technical problems encountered during the conversion of existing nylon chemical product packaging production, such as pallets not being able to be returned, unfilled bags being unusable and requiring the reuse of new bags to receive and discharge materials, and the need to cut open the bottoms of multiple bags to combine the materials into one bag according to weight requirements, resulting in significant bag damage, increased production costs, and increased labor intensity for workers, this utility model provides a pallet reverse conveying device for packaging. This device features a reasonable structure and ingenious design, effectively ensuring smooth pallet conveying, reducing packaging material consumption, significantly lowering costs, and improving enterprise efficiency.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a reverse conveying device for packaging pallets, including pallets, conveying rollers, a drive motor, a chain, a detection photoelectric sensor, a limiting mechanism, a forward control button, a reverse control button, a reflective photoelectric sensor, a heat sealing area, and a receiving area. The drive motor drives the chain to carry the conveying rollers to form a roller conveying mechanism. The pallets are placed on the conveying rollers. The receiving area and the heat sealing area are located at the front and rear ends of the roller conveying mechanism, respectively. A hopper is provided directly above the receiving area. A detection photoelectric sensor and a reflective photoelectric sensor are provided between the receiving area and the heat sealing area. The forward control button and the reverse control button are located on one side of the heat sealing area.

[0007] The above is the basic implementation of this utility model, and further improvements, refinements and limitations can be made on the basis of the above: such as a weighing scale being provided at the lower outlet of the silo.

[0008] The above is the basic embodiment of this utility model. Further improvements, refinements and limitations can be made on the basis of the above: such as the limiting mechanism for preventing the pallet from sliding out of the conveying roller at the end of the conveying roller near the hopper.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This utility model includes a pallet, conveyor rollers, a drive motor, a chain, a photoelectric sensor, a limit mechanism, a forward control button, a reverse control button, a reflective photoelectric sensor, a heat-sealing area, and a receiving area. The innovative design incorporates a controller on the packaging line that allows for forward and reverse rotation to control the direction of the conveyor motor. During normal packaging, the controller selects forward rotation, causing the conveyor motor to rotate in the forward direction. When cleaning the hopper or frequently cleaning the material bins, the controller selects reverse rotation, causing the conveyor motor to rotate in the reverse direction, conveying the pallets of unfilled packaging bags to the receiving area for material discharge during cleaning.

[0011] This utility model has a reasonable structure and ingenious design, which effectively ensures smooth pallet conveying, reduces packaging material consumption, effectively reduces costs, and improves enterprise efficiency. Attached Figure Description

[0012] Figure 1 This is a top view of the structure of this utility model;

[0013] The markings in the diagram are: 1. Pallet, 2. Conveyor roller, 3. Drive motor, 4. Chain, 5. Detector photoelectric sensor, 6. Limiting mechanism, 7. Forward control button, 8. Reverse control button, 9. Weighing scale, 10. Hopper, 11. Reflector photoelectric sensor, 12. Heat sealing area, 13. Receiving area. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0015] As shown in the figure, a reverse conveying device for packaging pallets includes a pallet 1, a conveying roller 2, a drive motor 3, a chain 4, a detection photoelectric sensor 5, a limiting mechanism 6, a forward control button 7, a reverse control button 8, a reflective photoelectric sensor 11, a heat-sealing area 12, and a receiving area 13. The drive motor 3 drives the chain 4 to carry the conveying roller 2 to form a roller conveying mechanism. The pallet 1 is placed on the conveying roller 2. The receiving area 13 and the heat-sealing area 12 are located at the front and rear ends of the roller conveying mechanism, respectively. A hopper 10 is provided directly above the receiving area 13. The detection photoelectric sensor 5 and the reflective photoelectric sensor 11 are provided between the receiving area 13 and the heat-sealing area 12. The forward control button 7 and the reverse control button 8 are located on one side of the heat-sealing area 12.

[0016] The above is the basic implementation of this utility model. Further improvements, refinements and limitations can be made on the basis of the above: for example, a weighing scale 9 is provided at the lower outlet of the silo 10.

[0017] The above is the basic implementation of this utility model. Further improvements, refinements and limitations can be made on the basis of the above: For example, a limiting mechanism 6 for limiting the pallet 1 from sliding out of the conveying roller 2 is provided at one end of the conveying roller 2 near the hopper 10.

[0018] As shown in the figure, the working process of this utility model is as follows: When the cleaning material in the hopper 10 is insufficient to fill a packaging bag, the remaining cleaning material in the hopper 10 is weighed by the weighing scale 9 and discharged into the packaging bag on the pallet 1. After all the remaining cleaning material is in the packaging bag on the pallet 1, the forward control button 7 is turned on, the drive motor 3 starts forward, drives the chain 4 to rotate forward, the chain 4 drives the conveyor roller 2 to rotate forward, and the pallet 1 moves from the receiving area 13 to the heat sealing area 12. After passing the detection photoelectric 5 and the reflective photoelectric 11, it enters the range of the heat sealing area 12. When the pallet 1 has completely passed the detection photoelectric 5 and the reflective photoelectric 11, the detection photoelectric 5 and the reflective photoelectric 11 send an automatic stop signal, the drive motor 3 stops rotating, the pallet 1 automatically stops in the heat sealing area 12, and the pallet 1 is moved away by the forklift.

[0019] When cleaning the hopper again, if the material generated is insufficient to fill a single packaging bag, the pallet 1 previously moved by the forklift is placed into the heat-sealing area 12. The reverse control button 8 is then activated, starting the drive motor 3 in reverse, which in turn drives the chain 4 to rotate in reverse. The chain 4 then drives the conveyor roller 2 to rotate in reverse, causing the pallet 1 to move from the heat-sealing area 12 to the receiving area 13. After passing through the detection photoelectric sensor 5 and the reflective photoelectric sensor 11, the pallet 1 enters the receiving area 13. Once the entire pallet 1 has passed through these sensors, they issue an automatic stop signal, stopping the drive motor 3. The pallet 1 then automatically stops in the receiving area 13 under the positioning of the limit mechanism 6. The remaining cleaning material in the hopper 10 is then removed. The material is weighed by the weighing scale 9 and discharged into the packaging bag on the pallet 1. After all the remaining cleaning material in the hopper is in the packaging bag on the pallet 1, the forward control button 7 is turned on, the drive motor 3 starts forward, and drives the chain 4 to rotate forward. The chain 4 drives the conveyor roller 2 to rotate forward. The pallet 1 moves from the receiving area 13 to the heat sealing area 12. After passing the detection photoelectric sensor 5 and the reflective photoelectric sensor 11, it enters the range of the heat sealing area 12. When the pallet 1 has completely passed the detection photoelectric sensor 5 and the reflective photoelectric sensor 11, the detection photoelectric sensor 5 and the reflective photoelectric sensor 11 send an automatic stop signal, the drive motor 3 stops rotating, the pallet 1 automatically stops in the heat sealing area 12, and the pallet 1 is moved away by the forklift, completing the packaging process of the reverse conveying receiving material.

[0020] This utility model features a reasonable structure and ingenious design, effectively ensuring smooth pallet conveying, reducing packaging material consumption, significantly lowering costs, and improving enterprise efficiency. It solves the technical problems encountered during the conversion of existing nylon chemical finished product packaging production, such as pallets not being able to be returned, unfilled bags being unusable and requiring the reuse of new bags for material unloading, and the need to cut the bottoms of multiple bags to combine the materials into one bag according to weight requirements. This results in significant bag damage, increased production costs, and increased labor intensity for workers. Compared to existing technologies, this invention has excellent market prospects and development potential.

[0021] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the concept of the present invention.

Claims

1. A pallet reverse conveying device for packaging, characterized in that: The system includes a pallet (1), a conveyor roller (2), a drive motor (3), a chain (4), a detection photoelectric sensor (5), a limit mechanism (6), a forward control button (7), a reverse control button (8), a reflective photoelectric sensor (11), a heat-sealing area (12), and a receiving area (13). The drive motor (3) drives the chain (4) to carry the conveyor roller (2) to form a roller conveying mechanism. The pallet (1) is placed on the conveyor roller (2). The receiving area (13) and the heat-sealing area (12) are located at the front and rear ends of the roller conveying mechanism, respectively. A hopper (10) is set directly above the receiving area (13). The detection photoelectric sensor (5) and the reflective photoelectric sensor (11) are set between the receiving area (13) and the heat-sealing area (12). The forward control button (7) and the reverse control button (8) are set on one side of the heat-sealing area (12).

2. The pallet reverse conveying device for packaging as described in claim 1, characterized in that: A weighing scale (9) is installed at the lower outlet of the silo (10).

3. The pallet reverse conveying device for packaging as described in claim 1, characterized in that: The conveying roller (2) is provided with a limiting mechanism (6) at one end near the hopper (10) to prevent the pallet (1) from sliding out of the conveying roller (2).