A two-stage tension control device for yarn in a plying machine

Abstract

This utility model discloses a two-stage tension control device for yarn in a plying machine, belonging to the field of yarn plying technology. The device includes a yarn feeding frame equipped with a servo tensioner; a tension guide wheel located on one side of the feeding frame, equipped with a tension controller and a tension wheel connected to the controller; a yarn separating disc and a plying machine, sequentially arranged on one side of the tension guide wheel. The servo tensioner controls the feeding tension of each yarn and maintains consistent tension values ​​across all yarns, achieving the first stage of tension control. The tension controller further controls the yarn tension and detects the tension value, achieving the second stage of tension control. The ply yarn obtained through this two-stage tension control exhibits better appearance and superior performance indicators, as well as higher breaking strength and a longer service life.

Description

Technical Field

[0001] This utility model relates to a two-stage tension control device for yarn in a plying machine, belonging to the field of yarn plying technology. Background Technology

[0002] Based on their molding structure, synthetic fiber ropes are mainly divided into two categories: twisted ropes and braided ropes. For braided ropes, the ply yarn is its basic building block; and for braided ropes, especially those used as the core rope, the ply yarn is also an important component. Therefore, the appearance and internal performance indicators of the ply yarn are very important for synthetic fiber ropes.

[0003] The processing of plied yarn mainly consists of three processes: initial twisting, doubling, and retwisting. The retwisting process is completed using a single-twist plying machine. Currently, in the traditional manufacturing method of plied yarn, the initial twisted yarn is wound on a yarn bobbin, which is mounted on a bobbin shaft. During production, the yarn is released from the bobbin under the traction of a roller and rubber roller combination, passes around a reversing rod, and is then sent to the retwisting device. The tension of the yarn comes from the friction between the bobbin and the bobbin shaft. As the size of the bobbin varies and its weight gradually decreases during operation, the friction becomes uncontrollable and uneven, leading to unstable yarn tension. Therefore, the traditional manufacturing method is not ideal for controlling the appearance and internal performance indicators of plied yarn, resulting in a large number of non-standard plied yarns with substandard appearance and excessive internal performance loss.

[0004] Currently, the research and development of existing rope lock equipment mainly focuses on integrating the initial twisting, doubling, and retwisting processes. It involves less attention to the tension adjustment process in the doubling and retwisting processes. In the production of ply yarn, excessive, insufficient, or unbalanced tension between rope yarns can lead to problems such as substandard appearance or excessive loss of internal performance of multi-strand rope yarns. Utility Model Content

[0005] This invention provides a dual-stage tension control device for yarn in a plying machine, which solves the problem of substandard appearance or excessive loss of internal performance indicators of multi-strand yarns due to excessive, insufficient, or unbalanced tension between the yarn strands during the plying process.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides a two-stage tension control device for yarn in a plying machine, including...

[0008] A yarn feeding frame device, wherein the yarn feeding frame device is equipped with a servo tensioner;

[0009] A tension wheel device is located on one side of the yarn feeding frame device. The tension wheel device is equipped with a tension controller and a tension wheel, and the tension wheel is connected to the tension controller.

[0010] The yarn separating device and the plying machine are sequentially arranged on one side of the tension roller device.

[0011] In one embodiment of this utility model, the tension wheel device includes a sensing element and a sensor wheel, wherein the sensor wheel is connected to the sensing element.

[0012] In one embodiment of this utility model, the tension wheel device includes two gears, which are respectively installed on one side of the tension wheel and the sensor wheel, and the two gears mesh with each other. The meshing gears enable the tension wheel and the sensor wheel to move in opposite directions at the same speed.

[0013] In one embodiment of this invention, the tension guide wheel device includes a tension guide wheel, which is installed on both sides of the tension wheel and the sensor wheel, and at least one tension guide wheel is provided. This can increase the wrap angle of the yarn on the tension wheel and the sensor wheel, thereby increasing the frictional force.

[0014] In one embodiment of this utility model, the tension roller device further includes a frame and a yarn divider. Two yarn dividers are symmetrically installed on both sides of the frame. The tension roller, tension controller, and sensing element are all mounted on the frame. The yarn dividers can comb the yarns from the servo tensioner in various directions into horizontally spaced parallel yarns.

[0015] In one embodiment of this utility model, the yarn feeding frame device is provided with a yarn frame, the servo tensioner is installed on the yarn frame, and a support rod is provided inside the yarn frame.

[0016] In one embodiment of this utility model, the yarn feeding frame device includes a yarn roll frame and a yarn roll. The yarn roll frame is mounted on the support rod, and both ends of the yarn roll frame are inclined to the support rod. The yarn roll is sleeved on the outer periphery of the yarn roll frame. This creates an angle between the two yarn rolls and the horizontal plane, making the outer side of the yarn roll higher than the inner side, thus preventing the yarn roll from falling off the yarn roll frame.

[0017] In one embodiment of the present invention, the yarn feeding frame device further includes a feed roller, a feed roller shaft, and a feed roller frame. The feed roller is sleeved on the outer circumference of the feed roller shaft and is rotatably connected to the feed roller shaft. The feed roller shaft is connected to the feed roller frame, and the feed roller frame is installed on the yarn frame.

[0018] In one embodiment of this utility model, the yarn separating disc device includes a bracket, a yarn separating disc, and a guide coil. The yarn separating disc is sleeved on the outside of the bracket, and the guide coil is disposed on the yarn separating disc.

[0019] In one embodiment of this invention, the sensing element is a tension sensor, which can measure the tension value of the yarn.

[0020] Beneficial effects

[0021] This utility model provides a two-stage tension control device for yarn in a plying machine, comprising a yarn feeding frame device, a tension roller device, a yarn separating disc device, and a plying machine. The yarn feeding frame device is equipped with a servo tensioner, which controls the feeding tension of each yarn and maintains consistent tension values ​​across all yarns, achieving the first stage of tension control. The tension roller device contains a tension controller, which further controls the yarn tension and detects the tension value, achieving the second stage of tension control. The ply yarn obtained through this two-stage tension control exhibits better appearance and superior performance indicators, as well as higher breaking strength and a longer service life. Furthermore, this device has a small footprint, a high degree of automation, and provides constant and adjustable yarn tension, offering excellent cost-effectiveness. Attached Figure Description

[0022] Figure 1 A schematic diagram of the two-stage tension control device for yarn of the plying machine provided by this utility model.

[0023] Figure 2 A perspective view of the yarn feeding frame device provided by this utility model.

[0024] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0025] Figure 4 A perspective view of the tension wheel device provided by this utility model.

[0026] Figure 5 This is another perspective view of the tension wheel device provided by this utility model.

[0027] Figure 6 A perspective view of the yarn roll holder provided by this utility model.

[0028] Figure 7 A perspective view of the servo tensioner provided by this utility model.

[0029] In the diagram: 1. Yarn feeding frame device; 11. Yarn frame; 111. Support rod; 12. Yarn roll frame; 13. Yarn roll; 14. Guide roller; 15. Servo tensioner; 16. Guide roller shaft; 17. Guide roller frame;

[0030] 2. Tension roller device; 21. Frame; 22. Distribution frame; 23. Tension roller; 24. Tension wheel; 25. Sensor wheel; 26. Gear; 27. Tension controller; 28. Sensing element;

[0031] 3. Yarn separating disc device; 31. Support; 32. Yarn separating disc; 33. Passing loop;

[0032] 4. Stock-sharing mechanism. Detailed Implementation

[0033] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] like Figures 1 to 7 As shown, this application provides a two-stage tension control device for yarn in a plying machine. This device can control the tension between yarns during the plying process, enabling the plyed yarn to achieve a better appearance and superior performance. The two-stage tension control device includes a yarn feeding frame device 1, a tension roller device 2, a yarn separating disc device 3, and a plying machine 4. The yarn feeding frame device 1, tension roller device 2, yarn separating disc device 3, and plying machine 4 are sequentially fixed to the ground. The tension roller device 2 is located on one side of the yarn feeding frame device 1, the yarn separating disc device 3 is located on the side of the tension roller device 2 opposite to the yarn separating disc device 3, and the plying machine 4 is located on the side of the yarn separating disc device 3 opposite to the tension roller device 2. The yarn is wound on the yarn feeding frame device 1, and under the traction of the plying machine 4, the yarn passes through the tension roller device 2 and the yarn separating disc device 3 before entering the plying machine 4 for plying.

[0037] In some embodiments, the yarn feeding device 1 includes a yarn frame 11, which is a frame structure with two vertical support rods 111 in the middle. Multiple yarn roll holders 12 are mounted on the support rods 111, and the yarn roll holders 12 on the two support rods 111 are combined in pairs to form a multi-layer yarn roll holder 12. Each yarn roll holder 12 is fitted with a yarn roll 13, and two yarn rolls 13 can be mounted back-to-back on each yarn roll holder 12. The two sides of the yarn roll holder 12 are inclined relative to the support rods 111, so that the two yarn rolls 13 form an angle with the horizontal plane, making the outer side of the yarn roll 13 higher than the inner side, preventing the yarn roll 13 from falling off the yarn roll holder 12. A servo tensioner 15 is also mounted on the yarn frame 11, located on the side of the yarn frame 11 near the tension roller device 2. Multiple servo tensioners 15 are provided, which can not only display the tension value but also adjust the tension value on the yarn. The servo tensioner 15 can control the tension of each yarn and keep the tension value of all yarns consistent, thus performing the first stage of tension control on the yarn. The installation height of the yarn roll holder 12 on the side away from the servo tensioner 15 is higher than that on the side closer to the servo tensioner 15, which is beneficial for the yarn roll 13 to be released.

[0038] In some embodiments, the yarn feeding device 1 further includes a guide roller 14, a guide roller shaft 16, and a guide roller frame 17. The guide roller frame 17 is installed on the side of the yarn frame 11 near the tension guide roller device 2, and is symmetrically arranged on both sides of the yarn frame 11. The guide roller 14 is sleeved on the outside of the guide roller shaft 16 and is rotatably connected to the guide roller shaft 16. Both ends of the guide roller shaft 16 are fixedly connected to the guide roller frame 17. Multiple guide rollers 14, guide roller shafts 16, and guide roller frames 17 are provided, adapted according to the number of layers of the yarn frame 12. After the yarn is drawn out from the yarn roll 13, it passes through the roller 14 and enters the servo tensioner 15. After the tension on the yarn is initially adjusted by the servo tensioner 15, it is led out to the tension guide roller device 2 for the next stage of tension adjustment.

[0039] In some embodiments, the tension roller device 2 includes a frame 21 and a yarn divider 22. The frame 21 has multiple through holes to facilitate the installation of other structures. There are two yarn dividers 22, symmetrically arranged on both sides of the frame 21. The yarn divider 22 is composed of two thick round shafts and multiple thin round shafts. The two thick round shafts are horizontally mounted on the frame 21, and the multiple thin round shafts are vertically mounted on the two thick round shafts. This allows the yarns drawn from the servo tensioner 15 in various directions to be combed into horizontally spaced parallel yarns.

[0040] In some embodiments, the frame 21 is further equipped with tension rollers 23, a tension controller 27, and a sensing element 28. Multiple tension rollers 23 are mounted on the same side as the yarn distributor 22. The tension controller 27 and the sensing element 28 are mounted on the side of the frame 21 opposite to the tension rollers 23. The sensing element 28 measures the yarn tension, and the tension controller 27 controls the yarn tension. The tension roller device 2 also includes a tension wheel 24, a sensor wheel 25, and a gear 26. All three are located on the same side as the yarn distributor 22. The tension wheel 24 is connected to the tension controller 27, which adjusts the yarn tension by controlling the rotation speed of the tension wheel 24, achieving a second-level tension control of the yarn. The sensor wheel 25 is connected to the sensing element 28, which measures the yarn tension through the sensor wheel 25. There are two gears 26, which are connected to the tension wheel 24 and the sensor wheel 25 respectively. The two gears 26 mesh with each other. The tension wheel 24 and the sensor wheel 25 have the same diameter. The meshing gears 26 enable the tension wheel 24 and the sensor wheel 25 to move in opposite directions at the same speed. Multiple tension rollers 23 are distributed on both sides of the tension wheel 24 and the sensor wheel 25, which can increase the wrap angle of the yarn on the tension wheel 24 and the sensor wheel 25, thereby increasing the friction.

[0041] In some embodiments, the yarn separating device 3 includes a support 31, a yarn separating disc 32, and a guide coil 33. The support 31 is used to mount the yarn separating disc 32, and multiple yarn separating discs 32 are arranged parallel to each other on the support 31. The guide coil 33 is disposed on the yarn separating disc 32 for passing yarn through. After being separated by the yarn separating frame 22, the yarn is introduced into the guide coil 33 on the yarn separating disc 32. After passing through the coil 33, the yarn is graded and layered before entering the plying machine 4 for plying, producing a product that meets the requirements.

[0042] Optionally, the sensing element 28 is a tension sensor, which can monitor the tension value of the yarn on the sensor wheel 25 in real time.

[0043] The working principle of this utility model is as follows: Yarn roll 13 is placed on yarn roll holder 12. After the yarn is drawn out from yarn roll 13, it passes through wheel 14 and enters servo tensioner 15. The yarn is wound on servo tensioner 15 according to a specified path. The tension value of each servo tensioner 15 is set and kept consistent. Servo tensioner 15 adjusts the tension of each yarn and keeps the tension value of all yarns consistent, realizing the first level of tension control. After the yarn is drawn out from servo tensioner 15, it enters tension roller device 2. The tension value of tension controller 27 is set. After passing through splitter frame 22, the yarn passes through tension roller 23, tension wheel 24 and sensor wheel 25 in sequence. When the yarn passes through tension wheel 24, the tension of the yarn is adjusted again and its tension value is detected by sensing element 28. Then it is pulled out from splitter frame 22 on the other side through tension roller 23. After being split by splitter frame 22, the yarn enters the pass loop 33 of splitting disc device 3 and enters the plying machine 4 for plying in grades and layers. By setting the tension values ​​of the servo tensioner 15 and the tension controller 27, the yarn can be made to move at a preset tension under the traction of the plying machine 4.

[0044] The device is equipped with a two-stage tension control system. The servo tensioner 15 controls the tension of each yarn and keeps the tension value of all yarns consistent, achieving the first stage of tension control, but the tension value controlled at this stage is relatively small. The tension controller 27 controls the tension of the yarn again and detects the tension value, achieving the second stage of tension control, and the tension value controlled at this stage is relatively large.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

[0047] This document uses specific embodiments to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A two-stage tension control device for yarn in a plying machine, characterized in that, include: A yarn feeding frame device (1) is provided with a servo tensioner (15); Tension wheel device (2), the tension wheel device (2) is located on one side of the yarn feeding frame device (1), the tension wheel device (2) is provided with tension controller (27) and tension wheel (24), the tension wheel (24) is connected to the tension controller (27); The yarn separating device (3) and the plying machine (4) are arranged sequentially on one side of the tension roller device (2).

2. The two-stage tension control device for yarn of a plywood machine according to claim 1, characterized in that, The tension wheel device (2) includes a sensing element (28) and a sensor wheel (25), wherein the sensor wheel (25) is connected to the sensing element (28).

3. The two-stage tension control device for yarn of a plywood machine according to claim 2, characterized in that, The tension wheel device (2) includes two gears (26), which are respectively installed on one side of the tension wheel (24) and the sensor wheel (25), and the two gears (26) mesh with each other.

4. The two-stage tension control device for yarn of a plywood machine according to claim 3, characterized in that, The tension wheel device (2) includes a tension wheel (23), which is installed on both sides of the tension wheel (24) and the sensor wheel (25), and at least one tension wheel (23) is provided.

5. The two-stage tension control device for yarn of a plywood machine according to claim 4, characterized in that, The tension roller device (2) also includes a frame (21) and a wire divider (22). There are two wire dividers (22), which are symmetrically installed on both sides of the frame (21). The tension roller (23), tension controller (27) and sensing element (28) are all installed on the frame (21).

6. The two-stage tension control device for yarn of a plywood machine according to claim 1, characterized in that, The yarn feeding device (1) is provided with a yarn frame (11), the servo tensioner (15) is installed on the yarn frame (11), and a support rod (111) is provided inside the yarn frame (11).

7. The two-stage tension control device for yarn on a plying machine according to claim 6, characterized in that, The yarn feeding frame device (1) includes a yarn roll frame (12) and a yarn roll (13). The yarn roll frame (12) is mounted on the support rod (111). The two ends of the yarn roll frame (12) are inclined to the support rod (111). The yarn roll (13) is sleeved on the outer periphery of the yarn roll frame (12).

8. The two-stage tension control device for yarn of a plywood machine according to claim 7, characterized in that, The yarn feeding frame device (1) further includes a feed roller (14), a feed roller shaft (16), and a feed roller frame (17). The feed roller (14) is sleeved on the outer circumference of the feed roller shaft (16) and is rotatably connected to the feed roller shaft (16). The feed roller shaft (16) is connected to the feed roller frame (17), and the feed roller frame (17) is installed on the yarn frame (11).

9. A two-stage tension control device for yarn on a plying machine according to claim 1, characterized in that, The yarn separating disc device (3) includes a bracket (31), a yarn separating disc (32), and a pass loop (33). The yarn separating disc (32) is sleeved on the outside of the bracket (31), and the pass loop (33) is disposed on the yarn separating disc (32).

10. A two-stage tension control device for yarn on a plying machine according to claim 2, characterized in that, The sensing element (28) is a tension sensor.

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