A flattening device for a plastic circular weaving machine
By introducing heated wrinkle-removing rollers and drive components into the plastic circular loom, the problem of wrinkles during the conveying of woven plastic fabric has been solved, achieving efficient wrinkle removal and flattening, and improving the quality of woven bags.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO CHUNG REALY IND & TRADE CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-10
AI Technical Summary
During the weaving process of existing plastic circular looms, wrinkles occur due to the loosening of the plastic woven fabric during transmission, which affects the quality of woven bags.
A flattening device for a plastic circular loom is designed, comprising a wrinkle-removing mechanism and a flattening mechanism. The plastic woven fabric is heated and stretched by a heated wrinkle-removing roller, and the opening range of the heated wrinkle-removing roller is adjusted by a drive component, which in turn flattens and flattens the plastic woven fabric.
It effectively removes wrinkles from the surface of woven plastic fabric, avoids the impact of wrinkles on the quality of woven bags, and improves the production efficiency and product quality of plastic circular looms.
Smart Images

Figure CN224477715U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of circular loom technology, specifically relating to a flattening device for a plastic circular loom. Background Technology
[0002] A circular loom is an industrial piece of equipment used for weaving tubular fabric, primarily for producing bags such as woven bags. In related technologies, the circular loom weaves flat yarns into woven bags through interlacing warp and weft threads. The woven cylindrical bags are then lifted and expanded into single-layer woven bags with both sides facing downwards. Finally, they are collected into rolls by a winding device.
[0003] The existing Chinese patent with publication number CN218809382U discloses a flattening device for a plastic circular loom, including a frame. Rotating shafts are rotatably mounted on the inner walls of both sides of the frame, and flattening rollers are fixedly mounted on the rotating shafts. A partition is fixedly mounted inside the frame, and guide mechanisms are installed at the top and bottom of the partition. A U-shaped shell is mounted on the guide mechanism, and a rotating shaft is rotatably mounted inside the U-shaped shell. A pressing roller is fixedly mounted on the rotating shaft, and the pressing roller is adapted to the flattening roller. A rotating hole is opened on the partition, and a rotating seat is rotatably mounted in the rotating hole. A driving mechanism is provided between the rotating seat and the U-shaped shell, and a rotating plate is fixedly mounted on the rotating seat. A pushing mechanism is slidably mounted on the top of the partition, and a fixing mechanism is provided between the pushing mechanism and the rotating plate.
[0004] Regarding the aforementioned related technologies, the inventors have discovered at least the following problems: During the processing of woven plastic fabric, the slack phenomenon during the conveying process inevitably leads to wrinkles in the woven plastic fabric. When the woven plastic fabric is pressed by the pressing roller and the flattening roller, if the wrinkled parts are pressed, the wrinkles will completely stick to the surface of the woven plastic fabric, resulting in a decrease in the quality of the woven plastic fabric. Utility Model Content
[0005] The purpose of this invention is to provide a flattening device for a plastic circular loom to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a flattening device for a plastic circular loom, comprising a frame, a flattening mechanism, and a wrinkle removal mechanism. The frame includes a base, a conveying roller is rotatably mounted on one end of the base, the flattening mechanism is disposed at the end of the base away from the conveying roller, and the wrinkle removal mechanism is disposed between the conveying roller and the flattening mechanism.
[0007] The wrinkle removal mechanism includes a bracket fixedly mounted on a base. Two spaced guide rollers are rotatably mounted on the lower end of the bracket. A fixed cylinder is fixedly mounted on the upper end of the bracket. Connecting seats are slidably mounted on all four sides of the fixed cylinder. A heated wrinkle removal roller is rotatably mounted on one side of the connecting seats. A drive assembly for driving the heated wrinkle removal roller to extend in all directions is provided inside the fixed cylinder.
[0008] In a preferred embodiment, the flattening mechanism includes a U-shaped frame fixedly mounted on a base, a flattening roller rotatably mounted inside the U-shaped frame, a cylinder fixedly mounted on the top of the U-shaped frame, a connecting frame fixedly connected to the lower end of the cylinder, and a pressure roller rotatably mounted on the bottom of the connecting frame.
[0009] In a preferred embodiment, a limiting rod is fixedly connected to the top of both ends of the connecting frame, and the upper end of the limiting rod slides through to the top of the U-shaped frame.
[0010] In a preferred embodiment, the drive assembly includes a bidirectional screw rotatably mounted inside a fixed cylinder, with two symmetrical threaded sleeves threaded onto the bidirectional screw, and a connecting rod hinged between the threaded sleeves and the connecting seat.
[0011] In a preferred embodiment, a motor for driving the bidirectional screw rotation is fixedly installed at one end of the fixed cylinder.
[0012] In a preferred embodiment, both ends of the connector are fixedly connected to limit blocks.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] The flattening device of this plastic circular loom, through the setting of the wrinkle removal mechanism, after the plastic woven fabric is conveyed by the conveyor roller, first the plastic woven fabric is wrapped around the inside of one of the guide rollers, then the plastic woven fabric is successively placed on multiple heated wrinkle removal rollers, and finally the plastic woven fabric is wrapped around the inside of another guide roller. During the conveying process of the plastic woven fabric, the heated wrinkle removal roller can heat the plastic woven fabric. At the same time, the drive component can be activated to drive the heated wrinkle removal roller to extend in all directions to pull the plastic woven fabric, thereby stretching the wrinkles on the surface of the plastic woven fabric and removing wrinkles from the plastic woven fabric, so as to avoid the wrinkles being crushed by the subsequent flattening mechanism and affecting the quality of the plastic woven fabric.
[0015] The flattening device of this plastic circular loom, through the setting of the drive component, can start the motor to drive the bidirectional screw to rotate, so that the bidirectional screw drives the two screw sleeves to move relative to each other or in opposite directions, so that the screw sleeves drive the connecting seat to move on the fixed cylinder through the connecting rod, thereby adjusting the opening range of the heated wrinkle removal roller. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the present invention in its working state;
[0017] Figure 2 This is a schematic diagram of the structure of the woven plastic fabric not shown.
[0018] Figure 3 This is a schematic diagram of the wrinkle removal mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the internal structure of the fixing cylinder of this utility model.
[0020] In the diagram: 1. Frame; 11. Base; 12. Conveyor roller; 2. Flattening mechanism; 21. U-shaped frame; 22. Flattening roller; 23. Cylinder; 24. Connecting frame; 25. Pressure roller; 26. Limiting rod; 3. Wrinkle removal mechanism; 31. Support; 32. Guide roller; 33. Fixed cylinder; 34. Connecting seat; 35. Heated wrinkle removal roller; 36. Drive assembly; 361. Bidirectional screw; 362. Screw sleeve; 363. Connecting rod; 364. Motor; 37. Limiting block. Detailed Implementation
[0021] The present invention will be further described below with reference to the embodiments.
[0022] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0023] Please see Figure 1-4 This utility model provides a flattening device for a plastic circular loom, including a frame 1, a flattening mechanism 2, and a wrinkle removal mechanism 3. The frame 1 includes a base 11, and a conveying roller 12 is rotatably mounted on one end of the base 11. The flattening mechanism 2 is located at the end of the base 11 away from the conveying roller 12. The wrinkle removal mechanism 3 is located between the conveying roller 12 and the flattening mechanism 2. Through the arrangement of the flattening mechanism 2 and the wrinkle removal mechanism 3, the plastic woven fabric can be conveyed to the wrinkle removal mechanism 3 through the conveying roller 12 to remove the wrinkles on the surface of the plastic woven fabric. Then, the plastic woven fabric is conveyed to the flattening mechanism 2 to flatten and roll the plastic woven fabric.
[0024] Specifically, the wrinkle-removing mechanism 3 includes a bracket 31 fixedly mounted on the base 11. Two spaced guide rollers 32 are rotatably mounted on the lower end of the bracket 31. A fixed cylinder 33 is fixedly mounted on the upper end of the bracket 31. Connecting seats 34 are slidably mounted around the fixed cylinder 33. A heated wrinkle-removing roller 35 is rotatably mounted on one side of the connecting seat 34. A drive assembly 36 for driving the heated wrinkle-removing roller 35 to extend outwards is provided inside the fixed cylinder 33. Through the arrangement of the wrinkle-removing mechanism 3, after the woven fabric is conveyed by the conveying roller 12, the woven fabric is first... The woven fabric passes over the inside of one of the guide rollers 32, and then is successively placed on multiple heated wrinkle-removing rollers 35. Finally, the woven fabric passes over the inside of another guide roller 32. During the conveying process of the woven fabric, the heated wrinkle-removing rollers 35 can heat the woven fabric. At the same time, the drive assembly 36 can be activated to drive the heated wrinkle-removing rollers 35 to extend in all directions and pull the woven fabric, thereby stretching the wrinkles on the surface of the woven fabric and removing wrinkles. This prevents the wrinkles from being crushed by the subsequent flattening mechanism 2 and affecting the quality of the woven fabric.
[0025] Specifically, the drive assembly 36 includes a bidirectional screw 361 rotatably mounted inside the fixed cylinder 33. Two symmetrical threaded sleeves 362 are threaded onto the bidirectional screw 361. A connecting rod 363 is hinged between the threaded sleeves 362 and the connecting seat 34. A motor 364 for driving the bidirectional screw 361 to rotate is fixedly mounted at one end of the fixed cylinder 33. By setting the drive assembly 36, the motor 364 can be started to drive the bidirectional screw 361 to rotate, so that the bidirectional screw 361 drives the two threaded sleeves 362 to move relative to or in opposite directions. The threaded sleeves 362 drive the connecting seat 34 to move on the fixed cylinder 33 through the connecting rod 363, thereby adjusting the opening range of the heated wrinkle-removing roller 35.
[0026] Both ends of the connecting seat 34 are fixedly connected to limit blocks 37. The limit blocks 37 can limit the connecting seat 34 and prevent it from sliding out of the fixed cylinder 33.
[0027] Specifically, the flattening mechanism 2 includes a U-shaped frame 21 fixedly installed on the base 11. A flattening roller 22 is rotatably installed inside the U-shaped frame 21. A cylinder 23 is fixedly installed on the top of the U-shaped frame 21. A connecting frame 24 is fixedly connected to the lower end of the cylinder 23. A pressure roller 25 is rotatably installed on the bottom of the connecting frame 24. Limiting rods 26 are fixedly connected to the top of both ends of the connecting frame 24. The upper end of the limiting rod 26 slides through to the top of the U-shaped frame 21. Through the setting of the flattening mechanism 2, after the plastic woven fabric is wrinkled by the wrinkle removal mechanism 3, the plastic woven fabric is guided between the flattening roller 22 and the pressure roller 25. The cylinder 23 is activated to drive the connecting frame 24 to descend, so that the connecting frame 24 drives the pressure roller 25 to descend, and cooperates with the flattening roller 22 to roll and flatten the plastic woven fabric.
[0028] The working principle and usage process of this utility model are as follows: First, after the woven plastic fabric is conveyed by the conveying roller 12, it is first wrapped around the inside of one of the guide rollers 32, and then the woven plastic fabric is successively placed on multiple heating wrinkle-removing rollers 35. Finally, the woven plastic fabric is wrapped around the inside of another guide roller 32. During the conveying process of the woven plastic fabric, the heating wrinkle-removing roller 35 can heat the woven plastic fabric. At the same time, the drive component 36 can be activated to drive the heating wrinkle-removing roller 35 to extend in all directions and pull the woven plastic fabric, thereby stretching the wrinkles on the surface of the woven plastic fabric. After the woven plastic fabric is wrinkled by the wrinkle-removing mechanism 3, it is guided between the flattening roller 22 and the pressure roller 25. The cylinder 23 is activated to drive the connecting frame 24 to descend, so that the connecting frame 24 drives the pressure roller 25 to descend, and cooperates with the flattening roller 22 to roll and flatten the woven plastic fabric.
[0029] 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 flattening device for a plastic circular loom, comprising a frame (1), a flattening mechanism (2), and a wrinkle-removing mechanism (3), characterized in that: The frame (1) includes a base (11), a conveying roller (12) is rotatably mounted on one end of the base (11), the flattening mechanism (2) is located at the end of the base (11) away from the conveying roller (12), and the wrinkle removal mechanism (3) is located between the conveying roller (12) and the flattening mechanism (2). The wrinkle removal mechanism (3) includes a bracket (31) fixedly mounted on a base (11). Two guide rollers (32) are rotatably mounted at the lower end of the bracket (31). A fixed cylinder (33) is fixedly mounted at the upper end of the bracket (31). Connecting seats (34) are slidably mounted around the fixed cylinder (33). A heated wrinkle removal roller (35) is rotatably mounted on one side of the connecting seat (34). A drive assembly (36) for driving the heated wrinkle removal roller (35) to extend in all directions is provided inside the fixed cylinder (33).
2. The flattening device for a plastic circular loom according to claim 1, characterized in that: The flattening mechanism (2) includes a U-shaped frame (21) fixedly installed on the base (11), a flattening roller (22) is rotatably installed inside the U-shaped frame (21), a cylinder (23) is fixedly installed on the top of the U-shaped frame (21), a connecting frame (24) is fixedly connected to the lower end of the cylinder (23), and a pressure roller (25) is rotatably installed on the bottom of the connecting frame (24).
3. The flattening device for a plastic circular loom according to claim 2, characterized in that: Limiting rods (26) are fixedly connected to the top of both ends of the connecting frame (24), and the upper end of the limiting rods (26) slides through to the top of the U-shaped frame (21).
4. The flattening device for a plastic circular loom according to claim 1, characterized in that: The drive assembly (36) includes a bidirectional screw (361) rotatably mounted in a fixed cylinder (33), on which two symmetrical threaded sleeves (362) are threadedly connected, and a connecting rod (363) is hinged between the threaded sleeves (362) and the connecting seat (34).
5. The flattening device for a plastic circular loom according to claim 4, characterized in that: One end of the fixed cylinder (33) is fixedly installed with a motor (364) for driving the bidirectional screw (361) to rotate.
6. The flattening device for a plastic circular loom according to claim 1, characterized in that: Limiting blocks (37) are fixedly connected to both ends of the connecting seat (34).