Plastic woven bag circular weaving machine capable of automatically bonding lining film

By using a spring-driven slider and a dust collection tube structure in a circular loom for automatically bonding plastic woven bags with inner lining film, the problem of thread ends affecting the bonding stability has been solved. This enables the cleaning of thread ends on the woven fabric surface and convenient replacement of the dust collection tube, thereby improving bonding quality and production efficiency.

CN223496761UActive Publication Date: 2025-10-31KUNMING RUITAI PLASTIC MFG CO LTD
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Patent Information

Application Number
CN202423076195.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-10-31
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

In existing circular knitting machines for automatically bonding inner lining films of plastic woven bags, loose threads on the surface of the woven fabric affect the bonding stability during the bonding process and are difficult to clean.

Method used

An automatic bonding circular knitting machine for plastic woven bags with inner lining film was designed. The machine uses a spring to squeeze the slider to drive the mounting base and the dust sticking tube to adhere to the woven fabric. The friction force is used to stick the thread ends to the dust sticking tube, and the dust sticking tube can be easily replaced through a detachable locking block structure.

Benefits of technology

It effectively avoids the impact of loose threads on the bonding stability, ensures bonding quality, and simplifies the cleaning and replacement process of the adhesive cartridge.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plastic woven bag circular weaving machine capable of automatically bonding a lining film, which comprises an equipment body, a groove is arranged in a mounting seat, a connecting block is arranged on the inner surface of the groove, a through groove is arranged in the connecting block, a rotating shaft is rotatably connected in the through groove, a dust bonding cylinder is arranged on the outer surface of the rotating shaft, and a dust collecting cylinder is arranged on the inner surface of the dust bonding cylinder. A second sliding groove is formed in the mounting base, a clamping block is slidably connected to the inner surface of the second sliding groove, a pull rod is fixedly connected to the left end of the clamping block, a second spring is arranged on the outer surface of the pull rod, a sliding block is extruded through the spring, the sliding block drives the mounting base to slide, and the mounting base drives two dust sticking cylinders to be attached to the two sides of the woven cloth. When the woven cloth is wound, the woven cloth drives the dust sticking cylinder to rotate through friction force, so that thread residues on the surface of the woven cloth are stuck to the dust sticking cylinder, and the poor stability after sticking caused by the influence of the thread residues when the lining film and the woven cloth are pressed and stuck into a whole is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of circular knitting machine technology for woven bags, and in particular to a circular knitting machine for automatically bonding inner lining film to plastic woven bags. Background Technology

[0002] Woven bags are packaging bags made of woven plastic filaments, primarily used for packaging and transporting various goods. The raw materials for woven bags typically include chemical plastics such as polyethylene and polypropylene. These materials give woven bags good durability and adaptability, enabling them to withstand heavy loads. Woven bags have wide applications in the industrial sector. Due to their woven structure, their internal sealing is relatively poor. Some woven bags utilize an inner lining film to improve moisture and leak-proof performance, enhance sealing and strength, improve appearance quality, and simplify production processes, among other things.

[0003] The existing automatic bonding circular knitting machine for plastic woven bags uses a second traction roller to pull the inner lining film roll towards a heating box. Inside the heating box, a heating roller adheres to the outer layer of the inner lining film roll, molten the outer layer. As the plastic woven fabric and the inner lining film roll pass through two pressure rollers, a spring pushes the pressure rollers and cooling rollers to press against them, bonding the inner lining film to the outer plastic fabric. However, the surface of the produced plastic woven fabric tends to retain many loose threads. These threads affect the bonding stability during the weaving process and become stuck inside the inner lining film after forming, affecting the appearance. A search revealed that the technical solution provided by utility model application number CN202222125419.2 also suffers from the same problems. Utility Model Content

[0004] The purpose of this invention is to provide an automatic plastic woven bag weaving machine for bonding inner lining film, which solves the problem that existing methods can easily affect the bonding of inner lining film and outer plastic sheet together.

[0005] To achieve the above objectives, an automatic bonding circular knitting machine for plastic woven bags with inner lining film is provided, comprising: a machine body, a support frame provided on the machine body, a first sliding groove inside the inner surface of the support frame, a fixed rod fixedly connected to the inner surface of the first sliding groove, a first spring provided on the outer surface of the fixed rod, a slider slidably connected to the outer surface of the fixed rod, and a mounting base fixedly connected to the rear surface of the slider;

[0006] The mounting base has a groove inside, and a connecting block is provided on the inner surface of the groove. The connecting block has a through groove inside, and a rotating shaft is rotatably connected inside the through groove. A dust collection tube is provided on the outer surface of the rotating shaft. The mounting base has a second sliding groove inside, and a locking block is slidably connected to the inner surface of the second sliding groove. A pull rod is fixedly connected to the left end of the locking block. A second spring is provided on the outer surface of the pull rod, and a handle is fixedly connected to the left end of the pull rod. The connecting block has a locking groove inside.

[0007] According to the aforementioned automatic bonding plastic woven bag weaving machine for inner lining film, the left end of the first spring is fixedly connected to the bottom of the first slide groove, and the right end of the first spring is fixedly connected to the slider.

[0008] According to the aforementioned automatic bonding plastic woven bag weaving machine for inner lining film, the inner surface of the first chute is fixedly connected to the slider, and the number of sliders is two and they are distributed left and right.

[0009] According to the aforementioned automatic bonding plastic woven bag circular loom with inner lining film, the left end of the second spring is fixedly connected to the bottom of the second slide groove, and the right end of the second spring is fixedly connected to the locking block.

[0010] According to the aforementioned automatic bonding circular knitting machine for plastic woven bags with inner lining film, the interior of the mounting base is slidably connected to the pull rod, and the inner surface of the slot is adapted to the card block.

[0011] According to the aforementioned automatic bonding circular knitting machine for inner lining films of plastic woven bags, the rear surface of the bracket is slidably connected to the mounting base, and the number of brackets is two, distributed in a front-to-back manner.

[0012] According to the aforementioned automatic bonding plastic woven bag circular loom with inner lining film, the rear surface of the connecting block is slidably connected to the dust collection tube, and the number of the dust collection tubes is two, distributed left and right.

[0013] According to the aforementioned automatic bonding circular loom for plastic woven bags with inner lining film, the main body of the equipment is electrofused to an external power source.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By pressing the slider with a spring, the slider drives the mounting base to slide, and the mounting base drives the two adhesive tubes to adhere to both sides of the woven fabric. When the woven fabric is wound up, the woven fabric drives the adhesive tubes to rotate through friction, thereby adhering the thread ends on the surface of the woven fabric to the adhesive tubes. This avoids the poor stability of the bonding caused by the thread ends when the inner lining film is pressed and bonded to the woven fabric.

[0016] 2. The connecting block can be quickly disassembled by the cooperation of the spring and the locking block. After disassembly, the connecting block can be removed to remove the dust collection tube and the rotating shaft, thereby replacing the dust collection tube and ensuring its cleanliness.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is an overall structural diagram of a circular loom for automatically bonding inner lining film of plastic woven bags according to this utility model;

[0020] Figure 2 This is a partial structural diagram of a circular loom for automatically bonding inner lining film of plastic woven bags according to this utility model;

[0021] Figure 3 This is a structural diagram of the support frame of a circular loom for automatically bonding inner lining film of plastic woven bags according to the present invention;

[0022] Figure 4 This is a direct structural cross-sectional view of a circular loom for automatically bonding inner lining film of plastic woven bags according to this utility model.

[0023] Legend:

[0024] 1. Equipment body; 2. Support; 3. First slide groove; 4. Fixed rod; 5. First spring; 6. Slider; 7. Mounting base; 8. Groove; 9. Connecting block; 10. Through groove; 11. Rotating shaft; 12. Dust collection tube; 13. Second slide groove; 14. Locking block; 15. Pull rod; 16. Second spring; 17. Handle; 18. Locking groove. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-4This utility model discloses an automatic bonding circular knitting machine for plastic woven bags with inner lining film. It includes a machine body 1, which is electrofused to an external power source. The machine body 1 has two supports 2 arranged front-to-back. Each support 2 has a first groove 3 on its inner surface. A fixing rod 4 is fixedly connected to the inner surface of the first groove 3. A first spring 5 is provided on the outer surface of the fixing rod 4. A slider 6 is slidably connected to the outer surface of the fixing rod 4. The inner surface of the first groove 3 is fixedly connected to the slider 6. Two sliders 6 are arranged left-to-right. The left end of the first spring 5 is fixedly connected to the bottom of the first groove 3. The first spring 5 can drive the dust-adhesive cylinder 12 to adhere to the woven fabric, thereby stably adhering impurities to the surface of the woven fabric. The right end of the first spring 5 is fixedly connected to the slider 6. A mounting base 7 is fixedly connected to the rear surface of the slider 6. The rear surface of the support 2 is slidably connected to the mounting base 7.

[0027] The mounting base 7 has a groove 8 inside, and a connecting block 9 is provided on the inner surface of the groove 8. A through groove 10 is provided inside the connecting block 9, and a rotating shaft 11 is rotatably connected inside the through groove 10. A dust collection tube 12 is provided on the outer surface of the rotating shaft 11. The rear surface of the connecting block 9 is slidably connected to the dust collection tube 12. There are two dust collection tubes 12, arranged left and right. The mounting base 7 also has a second sliding groove 13 inside, and a locking block 14 is slidably connected to the inner surface of the second sliding groove 13. A pull rod 1 is fixedly connected to the left end of the locking block 14. 5. The interior of the mounting base 7 is slidably connected to the pull rod 15. The outer surface of the pull rod 15 is provided with a second spring 16. The second spring 16 is used to drive the locking block 14 to rebound. The spring presses against the locking block 14 to increase the stability of the locking block 14. The left end of the second spring 16 is fixedly connected to the bottom of the second slide groove 13, and the right end of the second spring 16 is fixedly connected to the locking block 14. The left end of the pull rod 15 is fixedly connected with a handle 17. The interior of the connecting block 9 is provided with a locking groove 18, and the inner surface of the locking groove 18 is adapted to the locking block 14.

[0028] Working principle: By placing the bracket 2 on the path before bonding the woven fabric, the tension of the first spring 5 drives the two sliders 6 to slide. The sliding of the sliders 6 drives the mounting base 7 to slide, the mounting base 7 drives the connecting block 9 to slide, the connecting block 9 drives the rotating shaft 11 to slide, and the rotating shaft 11 drives the dust collection tube 12 to adhere to the surface of the woven fabric. The friction force when the woven fabric is rolled up causes the dust collection tube 12 to roll, thereby adhering the thread ends on the surface of the woven fabric to the surface of the dust collection tube 12. When a large number of thread ends accumulate on the surface of the dust collection tube 12, pulling the handle... Handle 17 drives the pull rod 15 to slide, and the sliding of the pull rod 15 causes the locking block 14 to slide. After the locking block 14 disengages from the slot 18, the surface of the connecting block 9 is connected to the dust tube 12 and removed. The connecting block 9 is removed, and the dust tube with the rotating shaft 11 is replaced. The connecting block 9 is then placed on the rotating shaft 11. The pull rod 15 is pulled to retract the locking block 14 into the second sliding groove 13. The connecting block 9 is inserted into the groove 8. The pull rod 15 is released, and under the force of the second spring 16, the locking block 14 is driven into the slot 18, thus completing the replacement.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A circular loom for automatically bonding inner lining film to plastic woven bags, characterized in that, include: The equipment body (1) is provided with a bracket (2). The inner surface of the bracket (2) has a first groove (3). A fixing rod (4) is fixedly connected to the inner surface of the first groove (3). A first spring (5) is provided on the outer surface of the fixing rod (4). A slider (6) is slidably connected to the outer surface of the fixing rod (4). A mounting base (7) is fixedly connected to the rear surface of the slider (6). The mounting base (7) has a groove (8) inside, and a connecting block (9) is provided on the inner surface of the groove (8). The connecting block (9) has a through groove (10) inside, and a rotating shaft (11) is rotatably connected inside the through groove (10). A dust stick (12) is provided on the outer surface of the rotating shaft (11). The mounting base (7) has a second sliding groove (13) inside, and a locking block (14) is slidably connected on the inner surface of the second sliding groove (13). A pull rod (15) is fixedly connected to the left end of the locking block (14). A second spring (16) is provided on the outer surface of the pull rod (15). A handle (17) is fixedly connected to the left end of the pull rod (15). The connecting block (9) has a slot (18) inside.

2. The circular loom for automatically bonding inner lining film of plastic woven bags according to claim 1, characterized in that, The left end of the first spring (5) is fixedly connected to the bottom of the first groove (3), and the right end of the first spring (5) is fixedly connected to the slider (6).

3. The circular loom for automatically bonding inner lining film of plastic woven bags according to claim 1, characterized in that, The inner surface of the first groove (3) is fixedly connected to the slider (6), and there are two sliders (6) distributed from left to right.

4. The circular loom for automatically bonding inner lining film of plastic woven bags according to claim 1, characterized in that, The left end of the second spring (16) is fixedly connected to the bottom of the second slide groove (13), and the right end of the second spring (16) is fixedly connected to the locking block (14).

5. The circular loom for automatically bonding inner lining film of plastic woven bags according to claim 1, characterized in that, The interior of the mounting base (7) is slidably connected to the pull rod (15), and the inner surface of the slot (18) is adapted to the block (14).

6. The circular loom for automatically bonding inner lining film of plastic woven bags according to claim 1, characterized in that, The rear surface of the bracket (2) is slidably connected to the mounting base (7), and there are two brackets (2) distributed in a front-to-back manner.

7. The circular loom for automatically bonding inner lining film of plastic woven bags according to claim 1, characterized in that, The rear surface of the connecting block (9) is slidably connected to the dust sticking cylinder (12), and there are two dust sticking cylinders (12) distributed on the left and right.

8. The circular loom for automatically bonding inner lining film of plastic woven bags according to claim 1, characterized in that, The device body (1) is connected to an external power cord.

Citation Information

Patent Citations

  • Plastic woven bag circular weaving machine capable of automatically bonding lining film

    CN218315228U