Yarn tension self-adaptive adjusting mechanism of warp knitting machine

Abstract

The utility model relates to the technical field of yarn adjustment, in particular to a warp knitting machine yarn tension self-adaptive adjusting mechanism which comprises a main machine body, the main machine body can be installed on a warp knitting machine and used for adjusting yarn tension, and a tension adjusting system capable of adjusting the yarn tension is arranged in the center of the main machine body. The tension adjusting system comprises a plurality of tension fine adjustment assemblies capable of finely adjusting yarn and an adjusting assembly used for driving the tension fine adjustment assemblies to rotate, and further comprises a rotating assembly arranged on the main machine body and used for driving the tension fine adjustment assemblies and the adjusting assembly to move. The rotating assembly comprises two rotating plates rotationally arranged on the main machine body. Through the synergistic effect of the tension fine adjustment assembly, the adjusting assembly and the rotating assembly, the yarn tension adjusting device can adjust the tension of yarn in a self-adaptive mode, and is simple in adjusting structure and rapid in adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of yarn adjustment, in particular to a yarn tension self-adapting adjustment mechanism for a warp knitting machine. Background Art

[0002] During the operation of a warp knitting machine, precise control of yarn tension plays a crucial role in product quality. Warp knitting machines use one or more sets of parallel yarns, which are simultaneously looped on all needles feeding the machine in the warp direction to form a knitted fabric. During this process, unstable yarn tension can negatively impact fabric quality. When yarn tension is too high, yarn usage is reduced, potentially leading to defects such as sparseness and holes in the fabric. Conversely, when yarn tension is too low, yarn usage increases, and the fabric may wrinkle and become uneven, seriously affecting the product's appearance and performance. To ensure uniform yarn tension, traditional warp knitting machines often utilize yarn tensioners and tension compensators. However, existing yarn tension adjustment technologies for warp knitting machines have numerous shortcomings.

[0003] Many existing warp knitting machines use spring chains connected to sprockets for tension compensation. This method has limited adjustment accuracy and cannot meet the high-precision yarn tension requirements of complex processes. Some warp knitting machines also use friction plates and adjust the positive pressure to change the friction during yarn transmission, thereby adjusting yarn tension. However, this adjustment method not only fails to achieve precise tension adjustment, resulting in large fluctuations in yarn tension and affecting product quality, but also wears out the friction plates over time, resulting in a limited lifespan and requiring frequent replacement. This not only increases production costs but also reduces efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a warp knitting machine yarn tension adaptive adjustment mechanism, which can adaptively adjust the yarn tension through the coordinated action of the tension fine-tuning component, the adjustment component and the rotating component, and the adjustment method is simple and the adjustment is fast.

[0005] To solve the problems of the prior art, the utility model provides a yarn tension adaptive adjustment mechanism for a warp knitting machine, comprising a main body, which can be installed on the warp knitting machine for adjusting the tension of the yarn. A tension adjustment system capable of adjusting the tension of the yarn is provided at the center of the main body. The tension adjustment system includes a plurality of tension fine-adjusting components capable of fine-tuning the yarn and an adjustment component for driving the tension fine-adjusting component to rotate. The tension fine-adjusting component is provided on the adjustment component, and the adjustment component is provided on the rotating component. The tension adjustment system also includes a rotating component provided on the main body for driving the tension fine-adjusting component and the adjustment component to move. The rotating component includes two rotating plates rotatably provided on the main body, the adjustment component includes two supports respectively provided at both ends of the rotating plate and rotating, each tension fine-adjusting component can be independently controlled, the tension fine-adjusting component also includes a plurality of guide rods slidably provided on the support, the tension fine-adjusting component also includes a wheel frame provided at one end of the guide rod for supporting the guide wheel, and the wheel frame is also rotatably provided with a guide wheel. Preferably, the tension fine-tuning assembly also includes a plurality of telescopic drive members arranged on the side of the support member away from the guide wheel for driving the guide wheel to move. The output end of the telescopic drive member is connected to the guide rod, and each telescopic drive member can independently control the movement of the guide wheel.

[0006] Preferably, a pressure sensor for detecting the pressure exerted by the wheel bracket on the guide rod is further provided between the wheel bracket and the guide rod.

[0007] Preferably, the tension fine-adjusting assembly further includes a spring that can be sleeved on the guide rod for buffering.

[0008] Preferably, the adjustment assembly further includes a first rotary driving member provided on the rotating plate, and an output end of the first rotary driving member is connected to the supporting member for driving the supporting member to rotate.

[0009] Preferably, the rotating assembly further comprises a second rotating driving member arranged on the side of the main body, and the output end of the second rotating driving member is connected to the center position of the rotating plate for driving the rotating plate to rotate around its axis.

[0010] Preferably, both the line inlet and the line outlet of the main body are rotatably provided with guide rollers, and the guide rollers are further provided with a plurality of limiting wheels respectively corresponding to the guide wheels.

[0011] Preferably, a mounting plate for mounting the main body on a warp knitting machine is further provided at the bottom of the main body.

[0012] The beneficial effects of the present invention compared to the prior art are as follows: the present application provides a tension fine-tuning assembly, which offers significant advantages in the field of yarn tension control. It not only has the ability to adjust yarn tension in real time, but also enables independent control of each yarn, effectively enhancing the flexibility of the yarn processing process. In the specific structure of the tension fine-tuning assembly, the guide wheel is designed to move freely on the support member. The telescopic drive member serves as the core drive component, controlling the movement of the guide rod to adjust the position of the guide wheel. This design allows for timely and accurate adjustment of the yarn tension during transmission. Furthermore, the pressure sensor integrated within the guide rod can detect the force applied by the yarn in real time, providing data support for tension adjustment. Furthermore, the synergistic effect of the first and second rotary drive members further enhances the flexibility of tension adjustment. The first rotary drive member drives the support member to rotate, while the second rotary drive member causes the rotating plate to rotate accordingly. Through the combination of these rotational movements, multi-dimensional, real-time adjustment of yarn tension can be achieved. It is particularly worth mentioning that each guide wheel independently corresponds to a telescopic drive component. This one-to-one control method ensures that the tension of each yarn can be adjusted independently, thus meeting the needs of different yarn processing processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the first three-dimensional structure of a yarn tension adaptive adjustment mechanism for a warp knitting machine according to the utility model;

[0014] Figure 2 This is a second three-dimensional structural diagram of a yarn tension adaptive adjustment mechanism for a warp knitting machine according to the utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of a tension adjustment system of a yarn tension adaptive adjustment mechanism for a warp knitting machine according to the utility model;

[0016] Figure 4 This is a top view structural diagram of a tension adjustment system of a yarn tension adaptive adjustment mechanism for a warp knitting machine according to the utility model;

[0017] Figure 5 This is a schematic diagram of the first three-dimensional structure of a tension fine-adjusting component of a tension adjustment system of a yarn tension adaptive adjustment mechanism for a warp knitting machine according to the present invention;

[0018] Figure 6 This is a second three-dimensional structural schematic diagram of a tension fine-adjusting component of a tension adjustment system of a yarn tension adaptive adjustment mechanism of a warp knitting machine according to the utility model.

[0019] The numbers in the figure are: 1. Main body; 2. Guide roller; 21. Limiting wheel; 3. Tension adjustment system; 31. Tension fine-tuning assembly; 311. Guide wheel; 312. Wheel frame; 313. Spring; 314. Guide rod; 315. Telescopic drive member; 32. Adjustment assembly; 321. Support member; 322. First rotating drive member; 33. Rotating assembly; 331. Rotating plate; 332. Second rotating drive member. DETAILED DESCRIPTION

[0020] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Reference Figures 1-6 As shown, the utility model provides a warp knitting machine yarn tension adaptive adjustment mechanism, including a main body 1, the main body 1 can be installed on the warp knitting machine for adjusting the tension of the yarn, the center position of the main body 1 is provided with a tension adjustment system 3 capable of adjusting the tension of the yarn, the tension adjustment system 3 includes a plurality of tension fine-tuning components 31 capable of fine-tuning the yarn and an adjustment component 32 for driving the tension fine-tuning component 31 to rotate, the tension adjustment system 3 also includes a rotating component 33 arranged on the main body 1 for driving the tension fine-tuning component 31 and the adjustment component 32 to move, the tension fine-tuning component 31 is arranged on the adjustment group The adjusting component 32 is arranged on the rotating component 33, and the rotating component 33 includes two rotating plates 331 rotatably arranged on the main body 1. The adjusting component 32 includes two supporting components 321 respectively arranged at both ends of the rotating plate 331 and rotating. Each tension fine-tuning component 31 can be controlled independently. The tension fine-tuning component 31 also includes a plurality of guide rods 314 that can be slidably arranged on the supporting component 321. The tension fine-tuning component 31 also includes a wheel frame 312 arranged at one end of the guide rod 314 for supporting the guide wheel 311, and the guide wheel 311 is also rotatably arranged on the wheel frame 312.

[0022] When the warp knitting machine is working, the yarn passes through the tension adjustment system 3 on the main body 1. The rotating drive member in the rotating assembly 33 drives the rotating plate 331 to rotate, driving the tension fine-tuning assembly 31 and the adjusting assembly 32 to move together. The adjusting assembly 32 drives the tension fine-tuning assembly 31 to rotate, changing the contact angle between the yarn and the tension fine-tuning assembly 31 or the direction of the yarn. At the same time, the guide wheel 311 in each tension fine-tuning assembly 31 can move back and forth along the width direction of the support member 321 to fine-tune the yarn. Through the coordinated work of the rotating assembly 33, the adjusting assembly 32 and the tension fine-tuning assembly 31, the tension of the yarn is adjusted in real time and accurately according to the actual tension requirement of the yarn during the warp knitting process, ensuring that the yarn maintains a stable tension state during the warp knitting process and improving the quality of the warp knitted product.

[0023] The tension fine-tuning assembly 31 also includes a plurality of telescopic driving members 315 arranged on the side of the support member 321 away from the guide wheel 311 for driving the guide wheel 311 to move. The output end of the telescopic driving member 315 is connected to the guide rod 314, and each telescopic driving member 315 can independently control the movement of the guide wheel 311.

[0024] A pressure sensor for detecting the pressure exerted by the wheel frame 312 on the guide rod 314 is further provided between the wheel frame 312 and the guide rod 314. The tension fine-tuning assembly 31 further comprises a spring 313 which can be sleeved on the guide rod 314 for buffering.

[0025] When yarn tension adjustment is required during warp knitting machine operation, the control system (actually the control system on the warp knitting machine, not shown) independently activates the corresponding telescopic drive element 315 based on the current yarn tension information fed back by the pressure sensor. The output end of the telescopic drive element 315 pushes or pulls the guide rod 314, causing it to slide on the support member 321. The guide rod 314 drives the wheel frame 312 and guide wheel 311 along the width of the support member 321. The yarn tension is transmitted to the pressure sensor via the guide wheel 311 and wheel frame 312. The pressure sensor detects the pressure exerted by the wheel frame 312 on the guide rod 314 in real time and feeds the pressure signal back to the control system. Based on the feedback from the pressure sensor, the control system adjusts the movement of the telescopic drive element 315 in real time, gradually bringing the yarn tension to the set target value. When the yarn tension reaches the target value, the control system stops the movement of the corresponding telescopic drive element 315, and the guide wheel 311 stops moving, completing the precise fine-tuning of the yarn tension.

[0026] The adjustment assembly 32 further includes a first rotation driving member 322 disposed on the rotating plate 331 . An output end of the first rotation driving member 322 is connected to the supporting member 321 for driving the supporting member 321 to rotate.

[0027] By starting the first rotary driving member 322 , the first rotary driving member 322 causes the supporting member 321 to rotate. As the supporting member 321 rotates, the relative positions of the two supporting members 321 change, thereby adjusting the tension of the yarn.

[0028] The rotating assembly 33 further includes a second rotating driving member 332 disposed on the side of the main body 1 . The output end of the second rotating driving member 332 is connected to the center of the rotating plate 331 for driving the rotating plate 331 to rotate around its axis.

[0029] By starting the second rotary driving member 332, the second rotary driving member 332 rotates the rotary plate 331, thereby changing the positions of the two supporting members 321 installed on the rotary plate 331, thereby adjusting the tension of the yarn.

[0030] The main body 1 has rotating guide rollers 2 at both the inlet and outlet ends. These guide rollers are also equipped with several stop rollers 21, each corresponding to a guide wheel 311. A mounting plate for attaching the main body 1 to the warp knitting machine is also located at the bottom. The stop rollers 21 primarily guide and redirect the yarn, and also limit the yarn's position, ensuring that the yarn enters and leaves the tension-adjustable area of the main body 1.

[0031] The above embodiments merely represent one or several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A warp knitting machine yarn tension adaptive adjustment mechanism, characterized by: The invention comprises a main body (1), wherein a tension adjustment system (3) capable of adjusting the tension of the yarn is arranged at the center of the main body (1), wherein the tension adjustment system (3) comprises a plurality of tension fine-adjusting components (31) capable of fine-adjusting the yarn and an adjustment component (32) for driving the tension fine-adjusting component (31) to rotate, and wherein the tension adjustment system (3) further comprises a rotating component (33) arranged on the main body (1) for driving the tension fine-adjusting component (31) and the adjustment component (32) to move, wherein the tension fine-adjusting component (31) is arranged on the adjustment component (32), and the adjustment component (32) is arranged on the rotating component (33). The rotating assembly (33) includes two rotating plates (331) rotatably arranged on the main body (1), the adjusting assembly (32) includes two rotatable supporting members (321) respectively arranged at both ends of the rotating plates (331), each tension fine-tuning assembly (31) can be independently controlled, the tension fine-tuning assembly (31) also includes a plurality of guide rods (314) slidably arranged on the supporting members (321), the tension fine-tuning assembly (31) also includes a wheel frame (312) arranged at one end of the guide rod (314) for supporting the guide wheel (311), and the guide wheel (311) is also rotatably arranged on the wheel frame (312).

2. The yarn tension adaptive adjustment mechanism for a warp knitting machine according to claim 1, characterized in that: The tension fine-tuning assembly (31) further comprises a plurality of telescopic driving members (315) arranged on a side of the support member (321) away from the guide wheel (311) for driving the guide wheel (311) to move. The output end of the telescopic driving member (315) is connected to the guide rod (314), and each telescopic driving member (315) can independently control the guide wheel (311) to move.

3. The yarn tension adaptive adjustment mechanism for a warp knitting machine according to claim 2, characterized in that: A pressure sensor for detecting the pressure applied by the wheel frame (312) to the guide rod (314) is also provided between the wheel frame (312) and the guide rod (314).

4. The yarn tension adaptive adjustment mechanism for a warp knitting machine according to claim 3, characterized in that: The tension fine-tuning assembly (31) further includes a spring (313) that can be sleeved on the guide rod (314) for buffering.

5. The yarn tension adaptive adjustment mechanism for a warp knitting machine according to claim 1, characterized in that: The adjustment assembly (32) further includes a first rotary driving member (322) disposed on the rotating plate (331), wherein an output end of the first rotary driving member (322) is connected to the supporting member (321) for driving the supporting member (321) to rotate.

6. The yarn tension adaptive adjustment mechanism for a warp knitting machine according to claim 1, characterized in that: The rotating assembly (33) further comprises a second rotating driving member (332) arranged on the side of the main body (1), wherein an output end of the second rotating driving member (332) is connected to the center position of the rotating plate (331) for driving the rotating plate (331) to rotate around its axis.

7. The yarn tension adaptive adjustment mechanism for a warp knitting machine according to claim 1, characterized in that: The main body (1) is provided with guide rollers (2) at both the inlet and outlet ends thereof for rotation. The guide rollers (2) are also provided with a plurality of limiting wheels (21) respectively corresponding to the guide wheels (311).

8. The yarn tension adaptive adjustment mechanism for a warp knitting machine according to claim 1, characterized in that: The bottom of the main body (1) is also provided with a mounting plate for mounting the main body (1) on a warp knitting machine.

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