Warp tension control device and spinning device

Abstract

The invention discloses a warp tension control device and a spinning device, and belongs to the field of spinning, the warp tension control device comprises a yarn guide device, the yarn guide device comprises a yarn storage disc and a second yarn guide wheel, the yarn storage disc can contain yarns and release the yarns, and the released yarns pass through the second yarn guide wheel; the torque device comprises a first rod piece, the second yarn guide wheel is installed on the first rod piece, when the tension of the yarn on the second yarn guide wheel is increased, the second yarn guide wheel can rotate around the first center shaft in the first direction, and when the tension of the yarn on the second yarn guide wheel is decreased, the second yarn guide wheel can rotate around the second center shaft in the second direction. The second guide yarn can rotate around the first central shaft in a second direction, and the first direction is opposite to the second direction; the friction disc is rigidly connected with the yarn storage disc; and the friction adjusting unit is set to be capable of increasing the rotation resistance of the yarn storage disc through the friction disc when the second yarn guide wheel rotates around the first center shaft in the second direction.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, and in particular to a warp tension control device and a textile device. Background Art

[0002] Warp tension plays a key role in the weaving process and directly affects the quality and production efficiency of the fabric. Stable warp tension is one of the key factors to ensure weaving stability. Correct control of warp tension is crucial to the quality of the fabric. Reasonable control of warp tension can not only improve production efficiency, but also reduce costs. At present, tension control devices can be roughly divided into traditional single-filament bundle tension control (for example: mechanical rocker tension control device) and electronic single-filament bundle tension control (for example: active spring stepper motor tension control device). At the same time, there are also many improved tension control devices. The above devices all have some defects such as: the warp tension cannot be adjusted constantly, it is difficult to achieve large yarn length compensation, and the production cost is high.

[0003] The patent with publication number CN101974823A provides a compensating mechanical yarn tension control device, in which the yarn passes through a return yarn disk with a winding spring, and the yarn is released or tightened by rotating the return yarn disk clockwise or counterclockwise. The patent with publication number CN111321507B provides a yarn tension adjustment device, which also realizes yarn tension control through a winding spring and a yarn storage disk, but on this basis, the guide channel through the yarn presents a certain curvature to reduce the friction between the yarn and the device. The patent with publication number CN114515875A provides an online adjustable constant tension control device and method, in which the yarn is passed around between two wire-passing pressure wheels, and the wire-passing pressure wheels are provided with elastic elements and rubber sleeves to protect the yarn while providing stable yarn tension.

[0004] The above-mentioned improved inventions have made certain improvements to the tension control device, or adopted mechanical or electronic elastic elements combined with optimized tension control devices. However, in the patent with publication number CN101974823A and the patent with publication number CN111321507B, there is sliding friction between the yarn and the device, and the friction force is greater than the rolling friction, which causes more obvious damage to the yarn. At the same time, the two. Although the patent with publication number CN114515875A adopts the form of rollers, the rollers will generate pressure on the yarn, which also aggravates the friction and damage of the yarn. At the same time, it is difficult to achieve accurate and uniform control of each yarn when the pressure wheel passes a large number of yarns. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the prior art and disclose a warp tension control device, comprising:

[0006] A yarn guiding device, comprising a yarn storage disk and a second yarn guiding wheel, wherein the yarn storage disk can accommodate yarn and release the yarn, and the released yarn passes through the second yarn guiding wheel;

[0007] The torque device comprises a first rod, the second yarn guide wheel is installed on the first rod, when the tension of the yarn on the second yarn guide wheel increases, the second yarn guide wheel can rotate around the first central axis in a first direction, when the tension of the yarn on the second yarn guide wheel decreases, the second yarn guide wheel can rotate around the first central axis in a second direction, the first direction and the second direction are opposite;

[0008] A friction disc, which is rigidly connected to the yarn storage disc;

[0009] The friction adjusting unit is configured to increase the rotational resistance of the yarn storage disc through the friction disc when the second yarn guide wheel rotates around the first central axis in the second direction.

[0010] In the improved scheme, the friction adjustment unit includes a rope and a friction strip, one end of the rope is connected to the first rod, and the other end is connected to the friction strip, the friction strip is located on the outer peripheral surface of the friction disk, the friction strip is connected to one end of a second tension spring, and the other end of the second tension spring is fixed. When the rope applies and releases tension to the friction strip, the rotational resistance of the friction strip to the friction disk can be changed.

[0011] In the improved solution, the warp tension control device further includes a bracket, and the torque device is fixed on the bracket through the first central axis.

[0012] In the improved scheme, the torque device also includes a second rod, the second rod and the first rod are connected at the first center axis, an iron ring is provided on the second rod, the iron ring is connected to the first tension spring, the first tension spring is connected to the spring adjustment device, and the spring adjustment device can adjust the tension of the first tension spring.

[0013] In the improved solution, the spring adjustment device includes: a key cap, a buckle, and a clamping hole. The first tension spring is connected to the key cap and clamped in the clamping hole through the buckle.

[0014] In the improved solution, the bracket includes: a lower crossbeam, an upper crossbeam, a first longitudinal beam, a second longitudinal beam, and a storage yarn disk bracket. A hole is drilled at one end of the upper crossbeam, and the rope passes through the hole. The spring adjustment device is fixed to one end of the lower crossbeam.

[0015] In the improved solution, the first central axis includes a roller bearing, the torque device is fixed to the bracket through the roller bearing, and the roller shaft contains a limiter to enable it to rotate within a certain angle.

[0016] In the improved scheme, the yarn guiding device also includes a first heddle reed, a first yarn guide wheel, a third yarn guide wheel, and a second heddle reed, and the released yarn passes through the first heddle reed, the first yarn guide wheel, the second yarn guide wheel, the third yarn guide wheel, and the second heddle reed in sequence.

[0017] In the improved solution, the first heald reed and the first yarn guide wheel are fixed on the first longitudinal beam, the second yarn guide wheel is fixed on the top of the first rod at the upper end of the torque device, and the third yarn guide wheel and the second heald reed are fixed on the second longitudinal beam.

[0018] In the improved scheme, an adjustment block is also provided on the bracket, and the adjustment block has a semicircular groove, the first center axis is located in the groove, an arc rod is provided on the first center axis, and an arc channel is provided on the adjustment block. The arc rod can move in the arc channel, and the arc channel is connected to a vertically distributed adjustment cavity. A metal block is provided on the adjustment cavity, and the metal block can move in the adjustment cavity, thereby maintaining a constant pressure in the adjustment cavity.

[0019] The present application also discloses a textile device, comprising the warp tension control device.

[0020] The yarn tension control device provided by the present invention can achieve small wear and large length compensation for the yarn, and can also achieve accurate and uniform control of the tension of multiple yarns.

[0021] The invention provides a yarn tension control device, which is installed on a bracket and a plurality of yarn tension control devices can be installed on the same bracket according to requirements; the device does not need to hold the yarn by a clamping wheel during the yarn guiding process and the yarn bending angle is small, resulting in little friction on the yarn.

[0022] The present invention realizes compensation for the warp tension through a torque device, a tension spring and a friction device. At the same time, a tension spring control device is designed to facilitate the adjustment of the yarn tension by adjusting the tension spring during use. Iron rings are designed at both ends of the tension spring and the friction strip to connect them, which is convenient for replacing tension springs with different elastic coefficients and friction strips with different roughness, making the device more widely adaptable.

[0023] The use of the torque device enables the present invention to have large tension compensation and yarn length compensation, the coordinated use of the double tension spring and the friction strip makes the yarn tension fluctuation range small and easier to maintain stability, and the heald reed and the yarn guide wheel enable the yarn to be stably led out to the next process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a yarn tension control device provided in Example 1 of the present invention;

[0025] Figure 2It is a left side view of the device of Example 1 of the present invention;

[0026] Figure 3 for Figure 1 The structural diagram of the middle spring adjustment device;

[0027] Figure 4 It is a partial schematic diagram of implementation 2 of the present application;

[0028] Figure 5 It is a partial schematic diagram of implementation 2 of the present application;

[0029] Markings in the figure: 1- bracket, 11- lower crossbeam, 12- upper crossbeam, 121- drilling hole, 13- first longitudinal beam, 14- second longitudinal beam, 15- storage yarn disk bracket, 17- adjusting block, 171- arc channel, 172- adjusting cavity, 173- metal block, 2- torque device, 21- spring adjustment device, 22- first tension spring, 23- second tension spring, 24- friction strip, 25- friction Disk, 26-first rod, 27-rope, 28-roller bearing, 29-second rod, 291-first central axis, 292-arc rod, 3-yarn guiding device, 31-yarn, 32-yarn storage disk, 33-second yarn guide wheel, 34-first heald reed, 35-first yarn guide wheel, 36-third yarn guide wheel, 37-second heald reed, 20-iron ring, 211-key cap, 212-buckle, 213-card control. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] Embodiment 1:

[0032] The present application discloses a warp tension control device, comprising:

[0033] The yarn guide device 3 includes a yarn storage disc 32 and a second yarn guide wheel 33. The yarn storage disc 32 can accommodate the yarn 31 and release the yarn 31. The released yarn passes through the second yarn guide wheel 33.

[0034] The torque device 2 includes a first rod 26, and the second yarn guide wheel 33 is installed on the first rod 26. When the tension of the yarn on the second yarn guide wheel 33 increases, the second yarn guide wheel 33 can rotate around the first central axis 291 in a first direction. When the tension of the yarn on the second yarn guide wheel 33 decreases, the second yarn guide wheel 33 can rotate around the first central axis in a second direction. The first direction and the second direction are opposite.

[0035] The friction disc 25 is rigidly connected to the yarn storage disc 32;

[0036] The friction adjusting unit is configured to increase the rotational resistance of the yarn storage disc 32 through the friction disc 25 when the second yarn guide wheel 33 rotates around the first central axis in the second direction.

[0037] In a more specific solution, the friction adjustment unit includes a rope 27 and a friction strip 24, one end of the rope 27 is connected to the first rod 26, and the other end is connected to the friction strip 24, the friction strip 24 is located on the outer peripheral surface of the friction disk 25, the friction strip 24 is connected to one end of the second tension spring 23, and the other end of the second tension spring 23 is fixed. When the rope 27 applies and releases tension to the friction strip 24, the rotational resistance of the friction strip 24 to the friction disk 25 can be changed.

[0038] In a more specific solution, the warp tension control device further includes a bracket 1, and the torque device 2 is fixed on the bracket 1 through a first central axis.

[0039] The torque device 2 also includes a second rod 29, which is connected to the first rod 26 at the first center axis. An iron ring 20 is provided on the second rod 29, and the iron ring 20 is connected to a first tension spring 22. The first tension spring 22 is connected to a spring adjustment device 21, and the spring adjustment device 21 can adjust the tension of the first tension spring 22.

[0040] like Figure 3 As shown, the spring adjustment device 21 includes: a key cap 211, a buckle 212, and a clamping hole 213. The first tension spring 22 is connected to the key cap 211 and clamped in the clamping hole 213 through the buckle 212. The clamping holes 213 are provided in multiple groups, and the elastic force of the first tension spring 22 is adjusted by switching the key cap 211 in different groups of clamping holes 213.

[0041] In a more specific solution, the bracket 1 includes: a lower crossbeam 11, an upper crossbeam 12, a first longitudinal beam 13, a second longitudinal beam 14, and a storage yarn disk bracket 15. A hole 121 is drilled at one end of the upper crossbeam 12, and the rope 27 passes through the hole 121. The spring adjustment device 21 is fixed to one end of the lower crossbeam 11.

[0042] In a more specific solution, the first central axis includes a roller bearing 28, and the torque device 2 is fixed to the bracket 1 through the roller bearing 28. The roller bearing 28 contains a limiter to enable it to rotate within a certain angle.

[0043] In a more specific solution, the yarn guiding device 3 also includes a first reed 34, a first yarn guide wheel 35, a third yarn guide wheel 36, and a second reed 37. The released yarn passes through the first reed 34, the first yarn guide wheel 35, the second yarn guide wheel 33, the third yarn guide wheel 36, and the second reed 37 in sequence.

[0044] In a more specific solution, the first heald reed 34 and the first yarn guide wheel 35 are fixed on the first longitudinal beam 13, the second yarn guide wheel 33 is fixed on the top of the first rod 26 at the upper end of the torque device 2, and the third yarn guide wheel 36 and the second heald reed 37 are fixed on the second longitudinal beam 14.

[0045] When the device is used, when there is excess yarn in the previous process of yarn feeding, the second yarn guide wheel 33 is lifted upward to tension the yarn due to the retraction of the first tension spring 22. At the same time, this movement pulls up the friction strip 24 through the rope 27 to increase the friction between it and the friction disk 25, thereby inhibiting the yarn feeding of the yarn storage disk 32. When the yarn is tensioned in the previous process, the tension of the yarn causes the second yarn guide wheel 33 to move downward to loosen the yarn, and at the same time releases the friction strip, reducing the friction between it and the friction disk 25, so that the yarn storage disk 32 can feed the yarn. The tension can be adjusted by the spring adjustment device 21.

[0046] Preferably, the yarn is 120tex alumina twisted filament yarn, and 6 alumina yarns are simultaneously drawn out from the yarn storage disk. The surface of the alumina yarn is smooth and easy to separate after overlapping. Therefore, a large number of yarns are drawn out when available on the yarn storage disk. The surfaces of all yarn guide wheels are made of smooth stainless steel skin, which is conducive to the passage of the alumina yarn. At the same time, considering the brittleness and friction resistance of the alumina yarn, the surface of the yarn guide wheel must be smooth; the reed number of the first heald reed and the second heald reed are both 60, and the 120tex alumina twisted filament yarn is relatively thin, so the selection of a heald reed with a larger number of reed teeth is conducive to the control of the alumina yarn, and the reed teeth of the heald reed are cylindrical reed teeth to further prevent the wear of the alumina yarn during the weaving process;

[0047] The first tension spring has a stiffness coefficient of 100 N / M, and the second tension spring has a stiffness coefficient of 150 N / M. Figure 3 The initial position of the buckle is located in the third clamping hole from top to bottom, which can be adjusted at any time during the weaving process. The friction strip is made of wear-resistant cowhide strip; the double tension spring is in a state of small stretching at the initial position, and the stretching state of the two is balanced by the lever device, so that the first yarn guide wheel is in a suitable position;

[0048] Combination Figure 1 The rope line uses a nylon elastic rope with a stiffness coefficient of 50N / M. The nylon elastic rope is also in a stretched state at the beginning. The nylon elastic rope and the first tension spring are both in a stretched state, which is conducive to the friction-resistant cowhide strip to be close to the friction disk;

[0049] Take the weaving process of carbon fiber yarn as an example;

[0050] This embodiment uses a torque device 2, a yarn and yarn guide device 3, and the yarn is 198tex carbon fiber yarn. Two carbon fiber yarns are simultaneously drawn out from the yarn storage disk. The carbon fibers are easy to stick together after overlapping, and the yarns are easy to fluff after separation, so the drawn carbon fiber yarns are less, and the surfaces of all yarn guide wheels are covered with rubber surfaces. The hardness value of the rubber surface can be changed according to different working conditions, which is conducive to the passage of the carbon fiber yarns to prevent slipping; the reed numbers of the first heald reed and the second heald reed are both 40, and the 198tex carbon fiber yarn is relatively flat, so the heald reed with a smaller number of reed teeth is used to facilitate the passage of the carbon fiber yarn, and the reed teeth of the heald reed are flat in shape to prevent the carbon fiber yarns from being worn by the heald reed during the weaving process;

[0051] The first tension spring has a stiffness coefficient of 200 N / M, and the second tension spring has a stiffness coefficient of 100 N / M. Figure 3 The initial position of the buckle is located in the fifth clamping hole from top to bottom, which can be adjusted at any time during the weaving process. The friction strip is made of wear-resistant cowhide strip; the double tension spring is in a state of small stretching at the initial position, and the stretching state of the two is balanced by the lever device, so that the first yarn guide wheel is in a suitable position;

[0052] Combination Figure 1 The rope line uses a nylon elastic rope with a stiffness coefficient of 80N / M. The nylon elastic rope is also in a stretched state at the beginning. The nylon elastic rope and the first tension spring are both in a stretched state, which is conducive to the friction-resistant cowhide strip to be close to the friction disk;

[0053] Embodiment 2:

[0054] The difference from implementation 1 is that the torque device does not include the second rod 29 and the spring adjustment device 21. At this time, the tension of the second yarn guide wheel 33 is controlled by the first rod 26 and the first center axis 291. Specifically, the bracket 1 is provided with an adjustment block 17, the adjustment block 17 is a rectangular parallelepiped structure, the surface of the adjustment block 17 has a semicircular groove, part of the first center axis 291 is located in the groove, the first center axis 291 and the first rod 26 are fixedly connected, the first center axis 291 is provided with an arc rod 292, the adjustment block 17 is provided with an arc channel 171, the arc rod 292 can move in the arc channel 171, the arc channel 171 is connected to a vertically distributed adjustment chamber 172, the adjustment chamber 172 is provided with a metal block 173, the metal block 173 can move in the adjustment chamber 172, so that the adjustment chamber maintains a constant pressure.

[0055] In some specific embodiments, the friction adjustment unit is not provided, and the pressure of the adjustment chamber 172 on the arc rod 292 is the torque on the first central axis 291 without considering the atmospheric pressure. When there is excess yarn in the previous process of yarn feeding, the second yarn guide wheel 33 will retract ( Figure 1 The first central axis (291) rotates accordingly, further rotating the arc rod 292, and the rotation of the arc rod 292 can move the metal block 173 up and down in the adjustment chamber 172. In this scheme, the air pressure in the adjustment chamber 172 remains unchanged, so the torsion force on the second yarn guide wheel 33 remains unchanged, and the tension on the yarn remains unchanged.

[0056] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A warp tension control device, characterized in that: Included are: A yarn guiding device (3), comprising a yarn storage disk (32) and a second yarn guiding wheel (33), wherein the yarn storage disk (32) is capable of accommodating the yarn (31) and releasing the yarn (31), and the released yarn passes through the second yarn guiding wheel (33); The torque device (2) comprises a first rod (26), the second yarn guide wheel (33) being mounted on the first rod (26), and when the tension of the yarn on the second yarn guide wheel (33) increases, the second yarn guide wheel (33) can rotate in a first direction around a first central axis (291), and when the tension of the yarn on the second yarn guide wheel (33) decreases, the second yarn guide wheel (33) can rotate in a second direction around the first central axis, the first direction and the second direction being opposite; A friction disc (25) rigidly connected to the yarn storage disc (32); The friction adjustment unit is configured to increase the rotational resistance of the yarn storage disk (32) through the friction disk (25) when the second yarn guide wheel (33) rotates in the second direction around the first central axis.

2. The warp tension control device according to claim 1, characterized in that: The friction adjustment unit comprises a rope (27) and a friction strip (24), one end of the rope (27) is connected to the first rod (26), and the other end is connected to the friction strip (24), the friction strip (24) is located on the outer peripheral surface of the friction disk (25), the friction strip (24) is connected to one end of the second tension spring (23), and the other end of the second tension spring (23) is fixed. When the rope (27) applies and releases tension to the friction strip (24), the rotational resistance of the friction strip (24) to the friction disk (25) can be changed.

3. The warp tension control device according to claim 1, characterized in that: The warp tension control device further comprises a bracket (1), and the torque device (2) is fixed on the bracket (1) via a first central axis.

4. The warp tension control device according to claim 3, characterized in that: The torque device (2) further comprises a second rod (29), the second rod (29) and the first rod (26) being connected at the first central axis, an iron ring (20) being provided on the second rod (29), the iron ring (20) being connected to a first tension spring (22), the first tension spring (22) being connected to a spring adjustment device (21), and the spring adjustment device (21) being capable of adjusting the tension of the first tension spring (22).

5. The warp tension control device according to claim 4, characterized in that: The spring adjustment device (21) comprises: a key cap (211), a buckle (212), and a clamping hole (213); the first tension spring (22) is connected to the key cap (211) and is clamped in the clamping hole (213) via the buckle (212); the bracket (1) comprises: a lower cross beam (11), an upper cross beam (12), a first longitudinal beam (13), a second longitudinal beam (14), and a storage yarn disk bracket (15); one end of the upper cross beam (12) is drilled with a hole (121), the rope (27) passes through the hole (121), and the spring adjustment device (21) is fixed to one end of the lower cross beam (11).

6. The warp tension control device according to claim 5, characterized in that: The first central axis includes a roller bearing (28), and the torque device (2) is fixed to the bracket (1) via the roller bearing (28). The roller bearing (28) contains a limiter inside so that it can rotate within a certain angle.

7. The warp tension control device according to claim 6, characterized in that: The yarn guiding device (3) further comprises a first heddle reed (34), a first yarn guide wheel (35), a third yarn guide wheel (36), and a second heddle reed (37), and the released yarn passes through the first heddle reed (34), the first yarn guide wheel (35), the second yarn guide wheel (33), the third yarn guide wheel (36), and the second heddle reed (37) in sequence.

8. The warp tension control device according to claim 7, characterized in that: The first heald reed (34) and the first yarn guide wheel (35) are fixed on the first longitudinal beam (13), the second yarn guide wheel (33) is fixed on the top of the first rod (26) at the upper end of the torque device (2), and the third yarn guide wheel (36) and the second heald reed (37) are fixed on the second longitudinal beam (14).

9. The warp tension control device according to claim 3, characterized in that: The bracket (1) is further provided with an adjustment block (17), the adjustment block (17) having a semicircular groove, the first central axis (291) being located in the groove, the first central axis (291) being provided with an arc-shaped rod (292), the adjustment block (17) being provided with an arc-shaped channel (171), the arc-shaped rod (292) being able to move in the arc-shaped channel (171), the arc-shaped channel (171) being connected to a vertically distributed adjustment cavity (172), the adjustment cavity (172) being provided with a metal block (173), the metal block (173) being able to move in the adjustment cavity (172), thereby maintaining a constant pressure in the adjustment cavity.

10. A weaving device, characterized in that It comprises the warp tension control device as described in any one of claims 1-9.

Images