A let-off mechanism for nylon fabric weaving

Abstract

The utility model relates to the field of let-off mechanism of nylon fabric weaving, concretely to let-off mechanism of nylon fabric weaving, including frame, the inside rotation of frame is connected with three warp beam, the inside slide connection of frame has the guide roller, the outside of guide roller is provided with connecting rod, the inside rotation of connecting rod is connected with swing bar, the outside slide connection of warp beam has the adaptation ring, the inside of frame is provided with tension fine adjustment mechanism, tension fine adjustment mechanism is used for adjusting the tension of nylon warp yarn to guarantee the evenness of tension, this let-off mechanism of nylon fabric weaving, when working, the tension change of warp yarn drives guide roller, connecting rod, swing bar action, drives the fine adjustment roller in the sliding slot movement, and fine adjustment roller is with torsional spring, spring elasticity, and cooperates with the buffer of limiting block and rubber block, and the partition fine adjustment of warp yarn in different regions of warp beam effectively solves the problem that traditional mechanism cannot cope with different nylon varieties and uneven warp yarn tension of warp beam edge.

Description

Technical Field

[0001] This utility model relates to the field of warp feeding mechanisms for nylon fabric weaving, specifically a warp feeding mechanism for nylon fabric weaving. Background Technology

[0002] The warp feeding mechanism is the core auxiliary device of nylon fabric weaving equipment. It stably and evenly feeds the warp yarns from the warp beam and precisely controls the feeding speed and tension of the warp yarns according to the weaving process requirements. It provides warp yarn raw materials that meet specifications for subsequent processes such as heald frame opening and weft yarn interlacing, and ultimately ensures the continuity of the nylon fabric weaving process and the consistency and smoothness of the finished fabric texture.

[0003] A search revealed a Chinese patent (CN213203363U) that describes a method where warp threads are fed through a tension roller after passing through the first warp roller via an unwinding motor on the left side of the first warp roller. Similarly, warp threads are fed through a tension roller after passing through the second warp roller via an unwinding motor on the left side of the second warp roller. Both the first and second warp rollers are height-adjustable via lifting motors. These lifting motors, along with a slider on a left-right linear track, are adjusted laterally by left-right push-pull motors, offering high adaptability. Furthermore, the tension rollers are raised and tension-adjusted via a lifting motor, while a lowering motor's pressure plate presses down on the warp threads to maintain tension. This entire mechanism allows for efficient and rapid warp feeding, is easy to operate, highly adaptable, and suitable for production applications.

[0004] When the above-mentioned patent is used, the tension roller lifting and the lower pressure plate pressing rely solely on motor drive, lacking the function of real-time detection of warp tension. It cannot dynamically adjust according to the subtle tension changes of polyester micro denier yarn, which can easily cause yarn breakage due to excessive tension or fabric defects due to insufficient tension. Therefore, we propose a warp feeding mechanism for nylon fabric weaving. Utility Model Content

[0005] One of the technical problems that this application aims to solve is that traditional warp feeding mechanisms cannot cope with the problem of uneven warp tension at the edges of different nylon varieties and warp beams.

[0006] To address the aforementioned technical problems, this application provides a warp feeding mechanism for nylon fabric weaving, comprising a frame, three warp beams rotatably connected inside the frame, guide rollers slidably connected inside the frame, connecting rods external to the guide rollers, a swing arm rotatably connected inside the connecting rods, and an adapter ring slidably connected external to the warp beams. A tension fine-tuning mechanism is also provided inside the frame to adjust the tension of the nylon warp yarns to ensure uniform tension.

[0007] In some embodiments, the tension fine-tuning mechanism includes a plurality of fixed rods disposed inside the frame, with torsion springs disposed outside the fixed rods and springs disposed inside the frame.

[0008] In some embodiments, a plurality of fine-tuning rollers are slidably connected inside the frame, a fixing rod is disposed outside the fine-tuning rollers, the outside of the fine-tuning rollers is disposed at the bottom of the fixing rod, and the outside of the fine-tuning rollers is disposed inside the warp shaft.

[0009] In some embodiments, the frame has a sliding groove inside, two limiting blocks are provided inside the sliding groove, a rubber block is provided outside the limiting blocks, the fine-tuning roller is disposed between the two limiting blocks, and the swing arm is disposed outside the fine-tuning roller.

[0010] In some embodiments, a replacement mechanism is provided on the outside of the fine-tuning roller, which is used to replace the adapter ring to achieve quick disassembly and assembly of the adapter ring.

[0011] In some embodiments, the switching mechanism includes a bushing disposed outside the warp shaft, and a plurality of spring blocks are disposed outside the adapter ring, the spring blocks engaging with the bushing.

[0012] In some embodiments, the swing arm has an L-shaped structure, with one end rotatably connected to the fine-tuning roller and the other end forming a linkage structure with the guide roller through the connecting rod, thereby realizing mechanical feedback and adjustment of warp tension changes.

[0013] In some embodiments, the spring blocks are evenly distributed along the inner circumferential direction of the adapter ring and are adapted to the snap-fit ​​structure of the bushing, thereby realizing the rapid positioning of the adapter ring and the bushing and ensuring the stability of power transmission when the shaft rotates.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. In this utility model, three warp beams rotatably connected inside the frame are used to wind nylon warp yarns. The warp yarns are guided by guide rollers, which are mechanically linked to the swing arm via connecting rods. The tension fine-tuning mechanism inside the frame is responsible for adjusting the warp yarn tension. During operation, changes in warp yarn tension will drive the guide rollers to move. The guide rollers drive the swing arm to swing via connecting rods, and the swing arm in turn drives the fine-tuning roller to move in the groove. Under the elastic action of the torsion spring outside the fixed rod and the spring inside the frame, the fine-tuning roller, in conjunction with the limiting and buffering effect of the limiting block and the rubber block, performs precise zoned tension fine-tuning of the warp yarns in different areas of the warp beam, thereby solving the problem that traditional warp feeding mechanisms cannot cope with different nylon varieties and uneven warp yarn tension at the edge of the warp beam.

[0016] 2. In this utility model, the adapter ring that is externally slidably connected to the shaft is used to match the friction characteristics of different nylon yarns. The switching mechanism inside the frame enables quick disassembly and assembly of the adapter ring. When it is necessary to switch the type of nylon yarn, the disassembly and assembly of the adapter ring can be quickly completed through the engagement structure between the spring block of the adapter ring and the shaft sleeve in the switching mechanism. Moreover, the adapter ring can form a linkage with the swing arm and the fine adjustment roller. The spring preload of the fine adjustment roller is automatically matched through the positioning slot, realizing multi-system coordinated adaptation. This solves the problems of slow multi-variety switching and debugging of existing warp feeding mechanisms and high dependence on operator skills. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the tension fine-tuning mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the slide groove of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the limiting block of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the swing arm of this utility model;

[0022] Figure 6 This is a schematic diagram of the replacement mechanism of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the adapter ring of this utility model.

[0024] In the diagram: 1. Frame; 2. Warp shaft; 3. Fixed rod; 4. Torsion spring; 5. Guide roller; 6. Spring; 7. Connecting rod; 8. Fine-tuning roller; 9. Slide groove; 10. Limiting block; 11. Rubber block; 12. Swing rod; 13. Adaptor ring; 14. Bushing; 15. Spring block; 16. Tension fine-tuning mechanism; 17. Changing mechanism. Detailed Implementation

[0025] 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.

[0026] Example 1: Please refer to Figure 1 - Figure 5This utility model provides a technical solution: a warp feeding mechanism for nylon fabric weaving, including a frame 1, which is used to install and fix various functional components. Three warp beams 2 are rotatably connected inside the frame 1. The warp beams 2 wind nylon warp yarns to provide yarn for the weaving process. Guide rollers 5 are slidably connected inside the frame 1, which guide the warp yarns and ensure stable warp yarn direction. A connecting rod 7 is provided outside the guide rollers 5, which connects the guide rollers 5 and a swing rod 12 to achieve mechanical linkage between the two. The swing rod 12 is rotatably connected inside the connecting rod 7, which senses changes in warp yarn tension and converts these changes into mechanical motion feedback to the tension adjustment component. The external sliding of the warp beams 2... The machine frame 1 has an adapter ring 13, which is used to match the friction characteristics of different nylon yarns and realize frictional adaptation when switching between multiple yarn varieties. The frame 1 is equipped with a tension fine-tuning mechanism 16, which is used to adjust the tension of the nylon warp yarn to ensure uniform tension and stable and consistent warp tension during weaving. The tension fine-tuning mechanism 16 includes multiple fixed rods 3, which support and install torsion springs 4 to provide a mounting base for the fine-tuning roller 8. The fixed rods 3 are equipped with torsion springs 4 on their exterior, which provide elastic restoring force for the fine-tuning roller 8 to assist in the fine-tuning of tension. The frame 1 is equipped with a spring 6, which provides elastic force for the guide roller 5 and participates in the tension adjustment process.

[0027] Example 2: Multiple fine-tuning rollers 8 are slidably connected inside the frame 1. These rollers are used to fine-tune the tension of warp yarns in different areas of the warp beam 2, solving the problem of uneven tension at different positions on the warp beam or with different nylon types. A fixing rod 3 is located outside all the fine-tuning rollers 8, providing a support structure for their installation and rotation. The outer surface of the fine-tuning rollers 8 is located at the bottom of the fixing rod 3, allowing them to swing or move around the fixing rod 3 to a certain extent, thereby achieving tension adjustment. The outer surface of the fine-tuning rollers 8 is located inside the warp beam 2, close to it, facilitating direct adjustment of the warp yarn tension. The frame 1 has internal openings... There is a chute 9, which provides a track for the movement of the fine-tuning roller 8 and restricts its direction of movement. There are two limit blocks 10 inside the chute 9, which limit the range of movement of the fine-tuning roller 8 within the chute 9 and prevent it from being over-displaced. There are rubber blocks 11 outside the limit blocks 10, which act as a buffer when the fine-tuning roller 8 moves to the limit position to avoid rigid collision. The fine-tuning roller 8 is positioned between the two limit blocks 10 to ensure that the fine-tuning roller 8 moves within a controllable range. The swing arm 12 is positioned outside the fine-tuning roller 8 and is linked with the fine-tuning roller 8 to transmit tension changes to the fine-tuning roller 8 to achieve tension adjustment.

[0028] Example 3: Please refer to Figure 1 , Figure 6 , Figure 7This utility model provides a technical solution: the fine-tuning roller 8 is provided with a replacement mechanism 17 on its outside. The replacement mechanism 17 is used to replace the adapter ring 13 to realize the quick disassembly and assembly of the adapter ring 13, which meets the friction adaptation requirements when switching between multiple varieties of nylon yarn. The replacement mechanism 17 includes a bushing 14, which connects the warp beam 2 and the adapter ring 13 and transmits the rotational power of the warp beam 2. The bushing 14 is set outside the warp beam 2 and rotates synchronously with the warp beam 2. The adapter ring 13 is provided with multiple spring blocks 15 on its outside to realize the quick positioning and connection between the adapter ring 13 and the bushing 14. The spring blocks 15 engage with the bushing 14 to ensure the stable installation of the adapter ring 13 on the bushing 14, while facilitating quick disassembly and assembly.

[0029] Example 4: The swing arm 12 has an L-shaped structure, which enables the swing arm 12 to generate effective mechanical movement when sensing changes in tension. One end is rotatably connected to the fine-tuning roller 8, so that the swing of the swing arm 12 can directly drive the movement of the fine-tuning roller 8, realizing the linkage of tension adjustment. The other end forms a linkage structure with the guide roller 5 through the connecting rod 7, which transmits the warp tension change sensed by the guide roller 5 to the swing arm 12, and then to the fine-tuning roller 8, realizing mechanical feedback and adjustment of warp tension change. Automatic tension adaptation can be completed without electronic components. The spring block 15 is evenly distributed along the inner circumference of the adapter ring 13, ensuring that the force is uniform when the adapter ring 13 and the bushing 14 are engaged, and is compatible with the engagement structure of the bushing 14, realizing the quick positioning of the adapter ring 13 and the bushing 14, which is convenient for operators to quickly replace the adapter ring 13, ensuring the stability of power transmission when the warp beam 2 rotates, so that the power of the warp beam 2 can be stably transmitted to the adapter ring 13 during the warp feeding process, thereby ensuring the stability of warp feeding.

[0030] Based on the above embodiments, the following is the complete working principle of the above embodiments: The device uses the frame 1 as a supporting carrier. Three warp beams 2 internally rotatably connect to wind nylon warp yarns. The warp yarns are guided by guide rollers 5. The guide rollers 5 are mechanically linked to the swing arm 12 through the connecting rod 7. The adapter ring 13 externally slidably connects to the warp beams 2 to match the friction characteristics of different nylon yarns. The tension fine-tuning mechanism 16 and the replacement mechanism 17 inside the frame 1 respectively realize the adjustment of warp yarn tension and the quick disassembly and assembly of the adapter ring 13. During operation, the change in warp yarn tension causes the guide rollers 5 to drive the connecting rod 7 to move, which in turn drives the swing arm 12 to swing. The swing arm 12 drives the fine-tuning roller 8 to... The fine-tuning roller 8 moves within the chute 9. Under the elastic action of the torsion spring 4 outside the fixed rod 3 and the spring 6 inside the frame 1, and with the limiting buffer of the limiting block 10 and the rubber block 11, the tension of the warp yarns in different areas of the warp beam 2 is finely adjusted to ensure uniform tension. When it is necessary to switch the nylon yarn type, the adapter ring 13 can be quickly disassembled and assembled through the locking structure of the spring block 15 of the adapter ring 13 and the bushing 14 in the switching mechanism 17. The adapter ring 13 is linked with the swing rod 12 and the fine-tuning roller 8. The preload of the spring 6 of the fine-tuning roller 8 is automatically matched through the positioning slot, thereby realizing the warp yarn feeding, tension control and rapid switching of yarn types in a multi-system coordinated manner.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0032] 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A warp feeding mechanism for weaving nylon fabric, comprising a frame (1), characterized in that: The frame (1) is internally rotatably connected to three warp beams (2), and the frame (1) is internally slidably connected to guide rollers (5). A connecting rod (7) is provided on the outside of the guide rollers (5). A swing rod (12) is internally rotatably connected to the connecting rod (7). An adapter ring (13) is slidably connected on the outside of the warp beams (2). The frame (1) is internally provided with a tension fine-tuning mechanism (16), which is used to adjust the tension of the nylon warp yarn to ensure uniform tension.

2. The warp feeding mechanism for nylon fabric weaving according to claim 1, characterized in that: The tension fine-tuning mechanism (16) includes multiple fixed rods (3), which are located inside the frame (1). A torsion spring (4) is provided outside the fixed rod (3), and a spring (6) is provided inside the frame (1).

3. The warp feeding mechanism for nylon fabric weaving according to claim 2, characterized in that: Multiple fine-tuning rollers (8) are slidably connected inside the frame (1). The fixing rod (3) is located outside the fine-tuning rollers (8). The outside of the fine-tuning rollers (8) is located at the bottom of the fixing rod (3). The outside of the fine-tuning rollers (8) is located inside the warp shaft (2).

4. The warp feeding mechanism for nylon fabric weaving according to claim 3, characterized in that: The frame (1) has a sliding groove (9) inside, and two limiting blocks (10) are provided inside the sliding groove (9). A rubber block (11) is provided outside the limiting block (10). The fine-tuning roller (8) is located between the two limiting blocks (10), and the swing rod (12) is located outside the fine-tuning roller (8).

5. The warp feeding mechanism for nylon fabric weaving according to claim 4, characterized in that: The fine-tuning roller (8) is provided with a replacement mechanism (17) on its exterior. The replacement mechanism (17) is used to replace the adapter ring (13) to achieve quick disassembly and assembly of the adapter ring (13).

6. The warp feeding mechanism for nylon fabric weaving according to claim 5, characterized in that: The switching mechanism (17) includes a bushing (14) which is disposed outside the warp shaft (2). Multiple spring blocks (15) are disposed outside the adapter ring (13), and the spring blocks (15) engage with the bushing (14).

7. The warp feeding mechanism for nylon fabric weaving according to claim 4, characterized in that: The swing arm (12) has an L-shaped structure. One end is rotatably connected to the fine-tuning roller (8), and the other end is linked to the guide roller (5) through the connecting rod (7) to realize mechanical feedback and adjustment of warp tension changes.

8. The warp feeding mechanism for nylon fabric weaving according to claim 6, characterized in that: The spring blocks (15) are evenly distributed along the inner circumferential direction of the adapter ring (13) and are adapted to the snap-fit ​​structure of the bushing (14) to realize the rapid positioning of the adapter ring (13) and the bushing (14) and ensure the stability of power transmission when the shaft (2) rotates.

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