A yarn tension regulating device

Abstract

The utility model discloses a kind of yarn tension adjusting devices, it is related to warp knitting machine field, the device includes rack, pedestal, telescopic mechanism, spring, drive bar, control assembly, rack is equipped with cross bar and rotatable first pivot and second pivot, first yarn passing mechanism is equipped on cross bar, second yarn passing mechanism and drive wheel are equipped on second pivot, pedestal is located above rack, telescopic mechanism is set on pedestal, spring is connected with telescopic mechanism, one end of drive bar is connected with drive wheel, the other end of drive bar is connected with spring, control assembly is respectively connected with telescopic mechanism, second yarn passing mechanism signal for automatically controlling telescopic mechanism telescopic motion to adjust suitable yarn tension according to the category and thickness of yarn, wherein, telescopic mechanism is pulled when telescopic motion, spring, drive bar moves, drive bar drives drive wheel rotation, drive wheel rotation drives second yarn passing mechanism on second pivot to change inclination angle to adjust the tension of yarn.

Description

Technical Field

[0001] This utility model relates to the field of warp knitting machines, specifically to a yarn tension adjustment device. Background Technology

[0002] In the warp knitting machine textile production process, precise control of yarn tension is the core technical support for maintaining product quality stability. Its tension stability has a decisive impact on fabric forming quality: on the one hand, it directly affects the smoothness of the fabric surface; on the other hand, it profoundly influences the uniformity of dye adhesion in subsequent dyeing and finishing processes. Specifically, under high-speed weaving conditions, if the tension exceeds the reasonable range, the yarn will be excessively stretched and undergo plastic deformation, causing fabric texture distortion and elasticity loss. Conversely, insufficient tension will cause the yarn to slack, leading to an uneven fabric surface, ultimately resulting in a significant decline in finished product quality and increased quality costs for the enterprise.

[0003] Currently, yarn tension adjustment on existing warp knitting machines largely relies on manually preset operating modes. This mode has technical limitations: First, when changing to different yarn materials (such as cotton, chemical fibers, or blends) or yarn diameter specifications during production, the machine must be stopped for resetting and adjusting the tension parameters. Each stoppage takes at least 10-20 minutes of production time, significantly restricting the efficiency of continuous production, especially severely hindering the flexible production needs of multi-variety, small-batch production. Second, the accuracy of manual adjustment is highly dependent on the operator's experience and skill level. The adjustment results of different workers, or even the same worker at different working times, will have deviations, resulting in large fluctuations in the tension consistency of the same batch of products. This directly leads to quality problems such as uneven fabric weight and elasticity differences, causing great trouble for the quality control of large-scale production in enterprises. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical problems and provide a yarn tension adjustment device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a yarn tension adjusting device, including a frame, a base, a telescopic mechanism, a spring, a drive bar, and a control component. The frame is provided with a crossbar and a rotatable first and second rotating shaft. The crossbar is provided with a first yarn guiding mechanism, and the second rotating shaft is provided with a second yarn guiding mechanism and a drive wheel. The base is located above the frame, and the telescopic mechanism is disposed on the base. The spring is connected to the telescopic mechanism, one end of the drive bar is connected to the drive wheel, and the other end of the drive bar is connected to the spring. The control component is signal-connected to the telescopic mechanism and the second yarn guiding mechanism respectively, and is used to automatically control the telescopic mechanism to perform telescopic movement according to the type and thickness of the yarn to adjust the tension of the yarn. When the telescopic mechanism performs telescopic movement, it pulls the spring and the drive bar to move. The drive bar drives the drive wheel to rotate, and the rotation of the drive wheel drives the second yarn guiding mechanism on the second rotating shaft to change its tilt angle to adjust the tension of the yarn.

[0006] Furthermore, the telescopic mechanism is an electric push rod.

[0007] Furthermore, the control components include a touchscreen for inputting yarn type and thickness.

[0008] Furthermore, the first yarn guiding mechanism includes a first yarn guiding link and a first yarn guiding wheel. The first yarn guiding link is disposed on the crossbar, and the first yarn guiding wheel is rotatably disposed on the first yarn guiding link.

[0009] Furthermore, the second yarn feeding mechanism includes a second yarn feeding link and a roller tension sensor. The second yarn feeding link is disposed on the second rotating shaft, and the roller tension sensor is disposed on the second yarn feeding link for detecting the tension of the yarn.

[0010] Furthermore, the roller tension sensor is fitted with a wear-resistant bushing.

[0011] Furthermore, the drive wheel is a sprocket, and the drive bar is a chain.

[0012] Furthermore, it also includes an alerting device, which is signal-connected to the control component to issue an alarm when the tension value detected by the roller tension sensor is abnormal.

[0013] Furthermore, the reminder device is a rotating alarm light.

[0014] As can be seen from the above description of this utility model, compared with the prior art, the yarn tension adjustment device provided by this utility model has the following advantages: By automatically controlling the telescopic mechanism according to the type and thickness of the yarn through the control component, automatic adjustment of yarn tension is achieved, eliminating the need for manual resetting and adjustment during machine downtime, saving production time, and improving the efficiency of continuous production. It is especially suitable for flexible production needs of multiple varieties and small batches. At the same time, the use of mechanized control avoids the problem of manual adjustment accuracy depending on the operator's experience and skill level, making tension adjustment more precise, ensuring the tension consistency of products in the same batch, reducing quality problems such as uneven fabric weight and elasticity differences, and lowering the quality costs for enterprises. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the yarn tension adjustment device of this utility model.

[0016] Figure 2 This is a side view of the yarn tension adjusting device of this utility model. Detailed Implementation

[0017] The technical solutions of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0018] Reference Figure 1 , Figure 2As shown, a yarn tension adjusting device includes a frame 1, a base 2, a telescopic mechanism 3, a spring 4, a drive bar 5, and a control component. The frame 1 is provided with a crossbar 11 and a rotatable first rotating shaft 12 and a second rotating shaft 13. The crossbar 11 is provided with a first yarn guiding mechanism 6, and the second rotating shaft 13 is provided with a second yarn guiding mechanism 7 and a drive wheel 8. The base 2 is located above the frame 1. The telescopic mechanism 3 is disposed on the base 2. The spring 4 is connected to the telescopic mechanism 3. One end of the drive bar 5 is connected to the drive wheel 8, and the other end of the drive bar 5 is connected to the spring 4. The control component is signal-connected to the telescopic mechanism 3 and the second yarn guiding mechanism 7 respectively, and is used to automatically control the telescopic mechanism 3 to perform telescopic movement according to the type and thickness of the yarn to adjust the tension of the yarn. Specifically, when the telescopic mechanism 3 extends or retracts, it pulls the spring 4 and the drive bar 5 to move. The drive bar 5 drives the drive wheel 8 to rotate. The rotation of the drive wheel 8 causes the second yarn guiding mechanism 7 on the second rotating shaft 13 to change its tilt angle to adjust the yarn tension. The spring 4 acts as a flexible connection, allowing the yarn tension to fluctuate within a certain range, preventing excessive tension from directly causing the yarn to break.

[0019] The telescopic mechanism 3 is an electric push rod.

[0020] The control component includes a touchscreen for inputting yarn type and thickness. Specifically, the control component is mounted on the side of the warp knitting machine body, allowing the operator to input yarn type and thickness information on the touchscreen. This enables the control component to control the movement of the telescopic mechanism 3 to adjust the yarn tension based on this information.

[0021] The first yarn guiding mechanism 6 includes a first yarn guiding link 61 and a first yarn guiding wheel 62. The first yarn guiding link 61 is disposed on the crossbar 11, and the first yarn guiding wheel 62 is rotatably disposed on the first yarn guiding link 61.

[0022] The second yarn guiding mechanism 7 includes a second yarn guiding link 71 and a roller tension sensor 72. The second yarn guiding link 71 is mounted on the second rotating shaft 13, and the roller tension sensor 72 is mounted on the second yarn guiding link 71 to detect the yarn tension. The roller tension sensor 72 is fitted with a wear-resistant bushing 721, which increases its wear resistance, extends its service life, and reduces equipment maintenance costs. Specifically, the wear-resistant bushing 721 is made of polytetrafluoroethylene (PTFE).

[0023] The drive wheel 8 is a sprocket, the drive bar 5 is a chain, and the sprocket has a cockscomb-shaped structure.

[0024] The yarn tension regulating device also includes an alarm device, which is signal-connected to the control component and is used to issue an alarm to alert the operator when the tension value detected by the roller tension sensor 72 is abnormal. Specifically, the alarm device is a rotating alarm light.

[0025] In use, the operator inputs the yarn type and thickness via the touchscreen of the control component. Based on a preset correspondence between yarn type and thickness and tension, the control component controls the telescopic mechanism 3 to extend and retract. During this extension and retraction, the telescopic mechanism 3 pulls the spring 4 and the drive bar 5, which in turn drives the drive wheel 8 to rotate. The rotation of the drive wheel 8 then drives the second rotating shaft 13 to rotate, causing the second yarn guide rod 71 to change its tilt angle, thereby adjusting the yarn tension. During yarn operation, the roller tension sensor 72 detects the yarn tension in real time and sends the detected tension value to the control component. The control component compares the detected tension value with a preset target tension value. If there is a deviation between the detected value and the target value, the control component controls the telescopic mechanism 3 to extend and retract further until the detected value reaches the target value, thus achieving closed-loop control. When the tension value detected by the roller tension sensor 72 is abnormal (exceeding the preset normal range), the control component controls the alarm device to issue an alarm, reminding the operator to check and handle it in time, and at the same time stop the machine to prevent the production of a large number of unqualified products due to abnormal tension.

[0026] The above are only some specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A yarn tension adjusting device, characterized in that: The device includes a frame, a base, a telescopic mechanism, a spring, a drive bar, and a control component. The frame has a crossbar and rotatable first and second shafts. The crossbar has a first yarn-feeding mechanism, and the second shaft has a second yarn-feeding mechanism and a drive wheel. The base is located above the frame, and the telescopic mechanism is mounted on the base. The spring is connected to the telescopic mechanism. One end of the drive bar is connected to the drive wheel, and the other end is connected to the spring. The control component is signal-connected to the telescopic mechanism and the second yarn-feeding mechanism to automatically control the telescopic mechanism to extend and retract according to the type and thickness of the yarn, adjusting the yarn tension accordingly. When the telescopic mechanism extends and retracts, it pulls the spring and the drive bar, causing the drive bar to rotate. The rotation of the drive wheel causes the second yarn-feeding mechanism on the second shaft to change its tilt angle, thus adjusting the yarn tension.

2. The yarn tension adjusting device according to claim 1, characterized in that: The telescopic mechanism is an electric push rod.

3. The yarn tension adjusting device according to claim 2, characterized in that: The control components include a touchscreen for inputting yarn type and thickness.

4. The yarn tension adjusting device according to claim 3, characterized in that: The first yarn feeding mechanism includes a first yarn feeding link and a first yarn feeding wheel. The first yarn feeding link is disposed on the crossbar, and the first yarn feeding wheel is rotatably disposed on the first yarn feeding link.

5. The yarn tension adjusting device according to claim 4, characterized in that: The second yarn feeding mechanism includes a second yarn feeding link and a roller tension sensor. The second yarn feeding link is disposed on the second rotating shaft, and the roller tension sensor is disposed on the second yarn feeding link for detecting the tension of the yarn.

6. The yarn tension adjusting device according to claim 5, characterized in that: The roller tension sensor is fitted with a wear-resistant bushing.

7. The yarn tension adjusting device according to claim 6, characterized in that: The drive wheel is a sprocket, and the drive bar is a chain.

8. The yarn tension adjusting device according to claim 7, characterized in that: It also includes an alerting device, which is signal-connected to the control component to issue an alarm when the tension value detected by the roller tension sensor is abnormal.

9. The yarn tension adjusting device according to claim 8, characterized in that: The reminder device is a rotating alarm light.

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