An automatic hemming device for environmentally friendly woven bags

By incorporating protective and height adjustment mechanisms into the automatic hemming device for environmentally friendly woven bags, the problems of worker injury and inconvenience in use have been solved, thus improving both safety and convenience.

CN224426747UActive Publication Date: 2026-06-30ZHANGZHOU HAOMEI PLASTIC PACKAGE PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGZHOU HAOMEI PLASTIC PACKAGE PROD CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing automatic hemming device for eco-friendly woven bags lacks protective mechanisms, making workers vulnerable to injury. In addition, the device's height is not adjustable, making it inconvenient to use.

Method used

The protective mechanism is designed, including components such as connecting sleeves, connecting plates, baffles, handles, connecting blocks, and slots. Through the cooperation of threaded rods and inclined blocks, the height adjustment and protective functions of the device are realized.

Benefits of technology

It effectively prevents workers from coming into contact with the compression rollers, avoiding injury, and allows the device to be adjusted to a comfortable operating position for workers, improving safety and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the technical field of automatic folding devices, specifically relating to an automatic folding device for environmentally friendly woven bags. It includes a main body, with a protective mechanism at its upper end and a base at its lower end. A support column is fixedly connected to the lower end of the base, and a motor is fixedly installed inside the base. A threaded rod is fixedly connected to the motor's rotating shaft. This utility model, through the design of components such as a connecting sleeve, connecting plate, baffle, handle, connecting block, and slot, moves the connecting plate towards the connecting sleeve. This movement causes the baffle and slot to move to designated positions on the connecting sleeve, thereby limiting the movement of the baffle and slot. This prevents workers from contacting the compression rollers, thus preventing injury to workers.
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Description

Technical Field

[0001] This utility model relates to the field of folding device technology, specifically an automatic folding device for environmentally friendly woven bags. Background Technology

[0002] Eco-friendly woven bags are an environmentally friendly alternative to plastic bags, but folding the edges is a tedious and error-prone step in the production process. To improve production efficiency and product quality, an automatic folding device can be designed. Utility model patent CN220841679U discloses a folding device for woven bag production, comprising: a workbench, which is a box structure with an internal cavity and a support structure at its bottom; a conveying mechanism, disposed on the workbench; a pressing structure, driven by a lifting mechanism, positioned on the upper center of the workbench; and a folding mechanism, disposed on the upper side of the workbench near the left side of the pressing mechanism. This device features a lifting pressing structure that automatically presses the woven bag during folding by lowering it, thus preventing skewing at the fold due to insufficient pressing. However, the device has the following shortcomings: it lacks a protective mechanism, making it easy for workers to come into contact with the compression rollers and potentially causing injury. Furthermore, the device's height is difficult to adjust during use, preventing it from being positioned for the worker's comfort. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide an environmentally friendly automatic folding device for woven bags, which solves the problems of the lack of a protective mechanism, which makes it easy for workers to come into contact with the squeezing rollers and cause injury to workers, and the inconvenience of adjusting the height of the device when in use, making it difficult to adjust the device to a comfortable position for workers.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic folding device for environmentally friendly woven bags, comprising an automatic folding device body, a protective mechanism at the upper end of the automatic folding device body, a base at the lower end of the automatic folding device body, a support column fixedly connected to the lower end of the base, a motor fixedly installed inside the base, a threaded rod fixedly connected to the rotating shaft of the motor, a threaded sleeve threadedly connected to the outer side of the threaded rod, the threaded sleeve slidably connected to the base, a first inclined block fixedly connected to the threaded sleeve, a second inclined block contacting the outer side of the first inclined block, a movable plate slidably connected inside the base, the movable plate fixedly connected to the second inclined block, and the automatic folding device body fixedly connected to the upper end of the movable plate. By rotating the threaded rod and the threaded sleeve, a threaded movement occurs, the threaded sleeve moves, causing the first inclined block to move, which in turn moves the automatic folding device body and other components upwards. After the automatic folding device body moves upwards to a designated position, the device can be adjusted to a comfortable position for the worker.

[0005] Preferably, the base has a guide block that is slidably connected inside, and the guide block is fixedly connected to the threaded sleeve. By designing the guide block, the threaded sleeve can be guided.

[0006] Preferably, a guide rod is slidably connected inside the base, and the guide rod is fixedly connected to the main body of the automatic folding device. By designing the guide rod, the main body of the automatic folding device can be guided.

[0007] Preferably, the protective mechanism includes a connecting sleeve. The upper end of the automatic folding device body is fixedly connected to the connecting sleeve. A connecting plate contacts the inside of the connecting sleeve, and a baffle is fixedly connected to the outside of the connecting plate, contacting the connecting sleeve. A connecting block is fixedly connected to the automatic folding device body, contacting the connecting plate. A slot is formed inside the connecting block, and a locking block is slidably connected inside the slot. A spring is provided inside the connecting plate, and the connecting plate is slidably connected to the locking block. By moving the connecting plate towards the connecting sleeve, the connecting plate moves the baffle and locking block to a designated position on the connecting sleeve, causing the locking block to move into the slot. This limits the movement of the baffle and other components, preventing workers from contacting the compression roller and preventing injury to workers from the device.

[0008] Preferably, a handle is fixedly connected to the upper end of the connecting plate. The handle is made of iron, which makes the handle more durable.

[0009] Preferably, one end of the spring is fixedly connected to the locking block, and the other end of the spring is fixedly connected to the connecting plate. By designing the spring, the locking block has an elastic force.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model designs components such as a connecting sleeve, a connecting plate, a baffle, a handle, a connecting block, and a slot. The movable connecting plate moves towards the connecting sleeve, and the movement of the connecting plate drives the baffle and the slot to a designated position on the connecting sleeve, thereby causing the slot to move into the slot. This limits the movement of the baffle and other components, thus preventing the connecting sleeve and the baffle from contacting the extrusion roller and preventing the device from causing injury to the workers.

[0012] 2. This utility model designs components such as a motor, threaded rod, threaded sleeve, first inclined block, second inclined block, and moving plate. Rotating the threaded rod and threaded sleeve causes threaded movement. The movement of the threaded sleeve drives the first inclined block to move. The movement of the first inclined block causes the main body of the automatic folding device and other components to move upward. After the main body of the automatic folding device moves upward to the designated position, the device can be adjusted to a comfortable position for the operator. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall structure of this utility model;

[0014] Figure 2 This utility model Figure 1 Partial sectional perspective view of the structure;

[0015] Figure 3 This utility model Figure 1 A front sectional view;

[0016] Figure 4 This utility model Figure 2 Enlarged view of point A.

[0017] In the diagram: 1. Automatic folding device main body; 2. Protective mechanism; 21. Connecting sleeve; 22. Connecting plate; 23. Baffle; 24. Handle; 25. Connecting block; 26. Slot; 27. Locking block; 28. Spring; 3. Base; 4. Support column; 5. Motor; 6. Threaded rod; 7. Threaded sleeve; 8. First inclined block; 9. Second inclined block; 10. Moving plate; 11. Guide rod; 12. Guide block. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-4 An automatic hemming device for environmentally friendly woven bags includes an automatic hemming device body 1, a protective mechanism 2 at the upper end of the automatic hemming device body 1, a base 3 at the lower end of the automatic hemming device body 1, a support column 4 fixedly connected to the lower end of the base 3, a motor 5 fixedly installed inside the base 3, a threaded rod 6 fixedly connected to the rotating shaft of the motor 5, a threaded sleeve 7 threadedly connected to the outer side of the threaded rod 6, the threaded sleeve 7 slidably connected to the base 3, a guide block 12 slidably connected inside the base 3, the guide block 12 fixedly connected to the threaded sleeve 7, the guide block 12 guides the threaded sleeve 7 by design, a first inclined block 8 fixedly connected to the threaded sleeve 7, the outer side of the first inclined block 8 contacting a... The second inclined block 9 and the base 3 are internally connected to a sliding plate 10, which is fixedly connected to the second inclined block 9. The base 3 is internally connected to a guide rod 11, which is fixedly connected to the main body 1 of the automatic folding device. By designing the guide rod 11, the main body 1 of the automatic folding device can be guided. The upper end of the sliding plate 10 is fixedly connected to the main body 1 of the automatic folding device. By rotating the threaded rod 6 and the threaded sleeve 7, a threaded movement occurs. The movement of the threaded sleeve 7 drives the first inclined block 8 to move. The movement of the first inclined block 8 causes the main body 1 of the automatic folding device and other components to move upward. After the main body 1 of the automatic folding device moves upward to the designated position, the device can be adjusted to a comfortable position for the operator.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 The protective mechanism 2 includes a connecting sleeve 21. The upper end of the automatic folding device body 1 is fixedly connected to the connecting sleeve 21. The inside of the connecting sleeve 21 is in contact with a connecting plate 22. The outside of the connecting plate 22 is fixedly connected to a baffle 23. The baffle 23 is in contact with the connecting sleeve 21. The upper end of the connecting plate 22 is fixedly connected to a handle 24. The handle 24 is made of iron. By designing the handle 24 to be made of iron, the handle 24 becomes more durable.

[0021] Please see Figure 1 , Figure 2 , Figure 4A connecting block 25 is fixedly connected to the main body 1 of the automatic folding device. The connecting block 25 contacts the connecting plate 22. A slot 26 is opened inside the connecting block 25. A locking block 27 is slidably connected inside the slot 26. A spring 28 is set inside the connecting plate 22. One end of the spring 28 is fixedly connected to the locking block 27, and the other end of the spring 28 is fixedly connected to the connecting plate 22. By designing the spring 28, the locking block 27 has an elastic force. The connecting plate 22 and the locking block 27 are slidably connected. By moving the connecting plate 22 towards the connecting sleeve 21, the moving connecting plate 22 drives the baffle 23 and the locking block 27 to the designated position on the connecting sleeve 21, thereby moving the locking block 27 into the slot 26, thereby limiting the baffle 23 and other components, thereby preventing the connecting sleeve 21 and the baffle 23 from contacting the extrusion roller and preventing the device from causing injury to the workers.

[0022] The specific implementation process of this utility model is as follows: The basic structure and basic principle of the automatic folding device for environmentally friendly woven bags have been disclosed in the utility model patent with publication number CN220841679U, and will not be repeated here;

[0023] Before the device is used, the handle 24 is moved toward the connecting sleeve 21. The movement of the handle 24 causes the connecting plate 22 to move. The movement of the connecting plate 22 causes the baffle 23 and the locking block 27 to move. The locking block 27 moves and contacts the connecting block 25, which in turn causes the locking block 27 to move toward the spring 28. The movement of the locking block 27 compresses the spring 28. After the connecting plate 22 and the baffle 23 move to the designated position on the connecting sleeve 21, the elastic force of the spring 28 pushes the locking block 27 to move. The locking block 27 moves into the locking groove 26, which limits the baffle 23 and other components. This prevents the connecting sleeve 21 and the baffle 23 from contacting the extrusion roller and prevents the device from causing injury to the workers.

[0024] When the device is in use, the motor 5 is started, and the motor 5 drives the threaded rod 6 to rotate. The rotation of the threaded rod 6 causes threaded movement with the threaded sleeve 7, which in turn causes the threaded sleeve 7 to move relative to the motor 5. The movement of the threaded sleeve 7 causes the guide block 12 and the first inclined block 8 to move away from the motor 5. The movement of the first inclined block 8 causes the second inclined block 9 to move upward. The upward movement of the second inclined block 9 causes the moving plate 10 to move upward. The upward movement of the moving plate 10 causes the automatic folding device body 1 to move upward. The upward movement of the automatic folding device body 1 causes the guide rod 11 and other components to move upward. After the automatic folding device body 1 and other components move upward to the designated position, the device can be adjusted to a comfortable position for the operator.

[0025] 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. An automatic folding device for environmentally friendly woven bags, comprising an automatic folding device body (1), characterized in that: The upper end of the automatic folding device body (1) is provided with a protective mechanism (2), the lower end of the automatic folding device body (1) is in contact with a base (3), the lower end of the base (3) is fixedly connected with a support column (4), the inside of the base (3) is fixedly installed with a motor (5), the rotating shaft of the motor (5) is fixedly connected with a threaded rod (6), the outside of the threaded rod (6) is connected with a threaded sleeve (7) by a thread, the threaded sleeve (7) is slidably connected with the base (3), the threaded sleeve (7) is fixedly connected with a first inclined block (8), the outside of the first inclined block (8) is in contact with a second inclined block (9), the inside of the base (3) is slidably connected with a moving plate (10), the moving plate (10) is fixedly connected with the second inclined block (9), and the upper end of the moving plate (10) is fixedly connected with the automatic folding device body (1).

2. The automatic folding device for environmentally friendly woven bags according to claim 1, characterized in that: The base (3) has a guide block (12) slidably connected inside, and the guide block (12) is fixedly connected to the threaded sleeve (7).

3. The automatic folding device for environmentally friendly woven bags according to claim 1, characterized in that: The base (3) is internally slidably connected to a guide rod (11), which is fixedly connected to the main body (1) of the automatic folding device.

4. The automatic folding device for environmentally friendly woven bags according to claim 1, characterized in that: The protective mechanism (2) includes a connecting sleeve (21). The upper end of the automatic folding device body (1) is fixedly connected to the connecting sleeve (21). The inside of the connecting sleeve (21) is in contact with a connecting plate (22). The outside of the connecting plate (22) is fixedly connected to a baffle (23). The baffle (23) is in contact with the connecting sleeve (21). The automatic folding device body (1) is fixedly connected to a connecting block (25). The connecting block (25) is in contact with the connecting plate (22). The inside of the connecting block (25) is provided with a slot (26). The inside of the slot (26) is slidably connected to a locking block (27). The inside of the connecting plate (22) is provided with a spring (28). The connecting plate (22) and the locking block (27) are slidably connected.

5. The automatic folding device for environmentally friendly woven bags according to claim 4, characterized in that: A handle (24) is fixedly connected to the upper end of the connecting plate (22), and the handle (24) is made of iron.

6. The automatic folding device for environmentally friendly woven bags according to claim 4, characterized in that: One end of the spring (28) is fixedly connected to the locking block (27), and the other end of the spring (28) is fixedly connected to the connecting plate (22).