Stacking device for plastic woven bags

By designing a stacking device for plastic woven bags, and utilizing compression and heating technologies to achieve stable folding of the woven bags, the problem of large space occupation by woven bags is solved, and the capacity and stability are improved.

CN223866055UActive Publication Date: 2026-02-03LIANYUNGANG CHENGUANG PLASTICS CO LTD
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Patent Information

Application Number
CN202520327013.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-02-03
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

Existing woven bags take up a lot of space when laid flat and stacked, so a device is needed to reduce their footprint.

Method used

A stacking device for plastic woven bags was designed, including a processing table, a folding guide plate, an extrusion roller, and a heating column. The woven bags are inserted by lowering the top plate, and the extrusion roller and heating column are used to gradually fold and heat-set the woven bags. Stable conveying is achieved by combining rotating rollers and a discharge conveyor belt.

Benefits of technology

It effectively reduces the space occupied by woven bags, increases the capacity, and reduces the probability of springback after folding by heat setting, thus ensuring the stability and flatness of the woven bags.

✦ Generated by Eureka AI based on patent content.

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Abstract

A through hole is formed in the side wall of the top of a machining table in a penetrating mode, a frame is fixedly connected to the side wall of the top of the machining table, a top plate is arranged in the frame, the bottom end of the top plate is of a conical structure and corresponds to the through hole, and a folding guide plate is fixedly connected to the side wall, opposite to the through hole, of the bottom of the machining table. The woven bag folding device has the advantages that the telescopic rod is started to lower the top plate, so that a middle thread of a woven bag can be inserted into the through hole, the woven bag can be pre-folded along with insertion of the middle thread, then the woven bag is driven by the rotating extrusion roller to move downwards, and the middle thread of the woven bag can be folded. The woven bags can be gradually clamped to complete folding operation while moving, the woven bags can be heated through the heating columns, heat is controlled within an interval where the woven bags cannot be affected, and due to the fact that the woven bags are heated, the woven bags can be folded stably, the probability of rebounding and unfolding of the woven bags is reduced, and the placing stability of the woven bags is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the technical field of folding equipment for woven bags, specifically to a stacking device for plastic woven bags. Background Technology

[0002] Woven bags are storage bags made by extruding plastic into filaments and then weaving them. They are common packaging bag products on the market and are often used for the storage and packaging of fertilizers and other products.

[0003] Woven bags are mostly rectangular in structure, and currently they are usually laid flat and stacked on pallets. This method increases the space occupied by the woven bags. Therefore, a folding device is needed to fold the woven bags and reduce the space occupied by their storage. To this end, a stacking device for plastic woven bags is proposed. Utility Model Content

[0004] The technical problem this invention aims to solve is that the space occupied by flat woven bags is a problem. This invention provides a stacking device for plastic woven bags, which reduces the area occupied by the woven bags and increases their capacity.

[0005] The technical solution adopted by this utility model to solve the technical problem is: a stacking device for plastic woven bags, including a processing table, a through hole is opened through the top side wall of the processing table, a frame is fixedly connected to the top side wall of the processing table, a top plate is set in the frame, the bottom end of the top plate is a conical structure and corresponds to the through hole, a folding guide plate is fixedly connected to the bottom side wall of the processing table and opposite to the through hole, the through hole communicates with the interior of the folding guide plate, and the top end of the folding guide plate is an arc-shaped structure.

[0006] As a preferred technical solution of this utility model, the two opposite side walls inside the folding guide plate are uniformly rotatably connected with extrusion rollers, and each extrusion roller is fitted with a heating column. The bottom side wall of the folding guide plate has an open structure.

[0007] As a preferred technical solution of this utility model, a guide plate is fixedly connected to the bottom side wall of the processing table near the folding guide plate. The guide plate has an L-shaped structure. The side wall of the guide plate opposite to the bottom opening of the folding guide plate has an inclined structure, and a rotating roller is evenly connected to the inclined surface. A discharge conveyor belt is provided below the guide plate.

[0008] As a preferred technical solution of this utility model, the four corners of the bottom of the processing table are fixedly connected with support feet, and a fixed horizontal plate is fixedly connected between two of the support feet. A pressing plate is provided below the fixed horizontal plate, and a spring is fixedly connected between the pressing plate and the fixed horizontal plate. An auxiliary rotating roller is evenly rotatably connected to the bottom side wall of the spring, and the auxiliary rotating roller is located above the discharge conveyor belt.

[0009] As a preferred technical solution of this utility model, a sliding groove is provided on the top of the processing table and near both sides. A slider is slidably connected in the sliding groove, and a baffle is fixedly connected to the top of the slider. A telescopic rod is detachably connected to the top side wall of the frame. The output end of the telescopic rod passes through the frame and is detachably connected to the middle of the top side wall of the top plate. A feeding conveyor belt is provided on the top of the processing table and on the side away from the sliding groove.

[0010] This utility model has the following advantages: by activating the telescopic rod to lower the top plate, the center line of the woven bag can be inserted into the through hole. As it is inserted, the woven bag will be pre-folded. Then, the rotating compression roller will drive the woven bag downward. While moving, the woven bag can be gradually clamped to complete the folding operation. The heating column can heat the woven bag, and the heat is controlled within a range that will not affect the woven bag. Because the heating can ensure the stability of the folding of the woven bag, reduce the probability of it rebounding and unfolding, and ensure its stability when placed. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the device according to a preferred embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of a preferred embodiment of the folding guide plate structure of this utility model;

[0013] Figure 3 This is a bottom view of the pressing plate structure of a preferred embodiment of the present invention.

[0014] Explanation of reference numerals in the attached drawings: 1. Processing table; 2. Frame; 3. Telescopic rod; 4. Top plate; 5. Through hole; 6. Feed conveyor belt; 7. Slide chute; 8. Baffle; 9. Folding guide plate; 10. Guide plate; 11. Rotating roller; 12. Discharge conveyor belt; 13. Fixed horizontal plate; 14. Pressing plate; 15. Heating column; 16. Extrusion roller; 17. Spring; 18. Auxiliary rotating roller. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Please refer to the following: Figure 1-3 This utility model discloses a stacking device for plastic woven bags, including a processing table 1. A through hole 5 is provided on the top side wall of the processing table 1. A frame 2 is fixedly connected to the top side wall of the processing table 1. A top plate 4 is provided inside the frame 2. The bottom end of the top plate 4 is conical and corresponds to the through hole 5. A folding guide plate 9 is fixedly connected to the bottom side wall of the processing table 1 and opposite to the through hole 5. The through hole 5 communicates with the interior of the folding guide plate 9. The top end of the folding guide plate 9 is arc-shaped.

[0017] The folding guide plate 9 has two opposing side walls that are evenly rotatably connected to extrusion rollers 16. Each extrusion roller 16 is fitted with a heating column 15. The bottom side wall of the folding guide plate 9 has an open structure. The bottom side wall of the processing table 1, near the folding guide plate 9, is fixedly connected to a guide plate 10. The guide plate 10 has an L-shaped structure. The side wall of the guide plate 10 and the bottom opening of the folding guide plate 9 are inclined. Rotating rollers 11 are evenly rotatably connected to the inclined surface. A discharge conveyor belt 12 is set below the guide plate 10. Support feet are fixedly connected to the four corners of the bottom of the processing table 1. A fixed horizontal plate 13 is fixedly connected between two support feet. A pressing plate 14 is set below the fixed horizontal plate 13. A spring 17 is fixedly connected between the pressing plate 14 and the fixed horizontal plate 13. An auxiliary rotating roller 18 is evenly rotatably connected to the bottom side wall of the spring 17. The auxiliary rotating roller 18 is located above the discharge conveyor belt 12.

[0018] The technical effect of this solution is as follows: as the top plate 4 descends, a portion of the woven bag can be inserted into the through hole 5, thus forcing the two sides of the woven bag to fold together. As the woven bag is inserted, it will come into contact with the compression roller 16. As the compression roller 16 rotates, it can bring the woven bag into the folding guide plate 9. As the woven bag moves in the folding guide plate 9, pressure is applied to it, thereby ensuring that the woven bag is folded smoothly. Furthermore, the heating energy of the heating column 15 can perform heat setting, reducing the probability of the woven bag springing back and unfolding after folding, and ensuring its stability when placed.

[0019] The processing table 1 has a slide groove 7 at the top and near both sides. A slider is slidably connected in the slide groove 7, and a baffle 8 is fixedly connected to the top of the slider. A telescopic rod 3 is detachably connected to the top side wall of the frame 2. The output end of the telescopic rod 3 passes through the frame 2 and is detachably connected to the middle of the top side wall of the top plate 4. A feeding conveyor belt 6 is provided on the top of the processing table 1 and on the side away from the slide groove 7.

[0020] The technical effect of this solution is that by moving the baffle 8 along the slide groove 7, the distance between the baffle 8 and the through hole 5 can be adjusted to accommodate woven bags of different sizes, thereby improving the flexibility and practicality of the application. In addition, the baffle 8 can ensure the flatness of the woven bag and prevent it from being tilted, which could lead to incorrect folding and affect its later storage.

[0021] Specifically, when this utility model is used, the woven bag is sent to the processing table 1 by the feeding conveyor belt 6. As the woven bag moves, it will contact the pre-set baffle 8, thereby adjusting the woven bag to a flat state and limiting the woven bag. Then, the telescopic rod 3 is activated to drive the top plate 4 to descend. As the top plate 4 descends, it will drive the woven bag to be inserted into the through hole 5. As the woven bag is inserted, it is released from the rotating extrusion roller 16. At this time, the woven bag will be moved by the extrusion roller 16. As it moves, the woven bag will be pressed and folded by the extrusion roller 16. And because the heating column 15 can perform heat setting, the stability of the woven bag after folding is guaranteed.

[0022] After being folded, the woven bag is discharged from the folding guide plate 9. The rotating roller 11 and the inclined guide plate 10 guide the woven bag to ensure that it falls smoothly onto the discharge conveyor belt 12. The discharge conveyor belt 12 can send the woven bag away. The spring 17 drives the pressing plate 14 to press the woven bag. As the woven bag moves, it is subjected to secondary pressing and shaping to reduce the probability of the woven bag springing back and unfolding.

[0023] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0024] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stacking device for plastic woven bags, comprising a processing table (1), characterized in that, The processing table (1) has a through hole (5) on its top side wall. A frame (2) is fixedly connected to the top side wall of the processing table (1). A top plate (4) is set inside the frame (2). The bottom end of the top plate (4) is conical and corresponds to the through hole (5). A folding guide plate (9) is fixedly connected to the bottom side wall of the processing table (1) and opposite to the through hole (5). The through hole (5) communicates with the interior of the folding guide plate (9). The top end of the folding guide plate (9) is arc-shaped.

2. The stacking device for plastic woven bags as described in claim 1, characterized in that, The folding guide plate (9) has two opposing side walls that are evenly connected to the compression rollers (16), and each compression roller (16) is fitted with a heating column (15). The bottom side wall of the folding guide plate (9) has an open structure.

3. The stacking device for plastic woven bags as described in claim 1, characterized in that, A guide plate (10) is fixedly connected to the bottom side wall of the processing table (1) near the folding guide plate (9). The guide plate (10) has an L-shaped structure. The side wall of the guide plate (10) opposite to the bottom opening of the folding guide plate (9) has an inclined structure, and a rotating roller (11) is evenly connected to the inclined surface. A discharge conveyor belt (12) is provided below the guide plate (10).

4. The stacking device for plastic woven bags as described in claim 1, characterized in that, The processing table (1) has four fixed support feet at its bottom corners. A fixed horizontal plate (13) is fixedly connected between two of the support feet. A pressing plate (14) is set below the fixed horizontal plate (13). A spring (17) is fixedly connected between the pressing plate (14) and the fixed horizontal plate (13). An auxiliary rotating roller (18) is evenly rotatably connected to the bottom side wall of the spring (17). The auxiliary rotating roller (18) is located above the discharge conveyor belt (12).

5. The stacking device for plastic woven bags as described in claim 1, characterized in that, The processing table (1) has a sliding groove (7) at the top and near both sides. A slider is slidably connected in the sliding groove (7), and a baffle (8) is fixedly connected to the top of the slider. A telescopic rod (3) is detachably connected to the top side wall of the frame (2). The output end of the telescopic rod (3) passes through the frame (2) and is detachably connected to the middle of the top side wall of the top plate (4). A feeding conveyor belt (6) is provided on the top of the processing table (1) away from the sliding groove (7).