A loom tension control device

Abstract

The utility model provides a loom tension control device relates to loom accessory technical field, this loom tension control device includes base, pivot, chassis, screw cap, fixed link, friction plate, fixed plate, elastic piece one, movable plate, elastic piece two, installation slot, support frame, cross board, vertical rod, end plate, spring, guide rod, mounting plate, pulley, connecting rope, the other end of connecting rope passes pulley on the groove and support frame in proper order and is fixedly connected with cross board, when yarn is under the condition of being pulled and the degree of tension reduces, under the action of spring, will drive vertical rod and cross board to move upward, and drives connecting rope to move upward, then makes elastic piece two compression, after compression, elastic piece two can exert more pressure to friction plate, to make the friction between friction plate and pivot increase, to reduce the rotating speed of pivot, can avoid the bobbin to continue to give out too much yarn, is favorable to keep the yarn that has given out to be in the state of tension.

Description

Technical Field

[0001] This utility model relates to the field of loom accessories technology, specifically a loom tension control device. Background Technology

[0002] When a loom is in operation, the tension of the yarn needs to be controlled. By controlling the tension of the yarn, we can ensure the quality of weaving, prevent yarn breakage, maintain stable equipment operation, avoid stitch deviation and slack, maintain the good condition of the yarn, and enhance the mechanical properties of the fabric.

[0003] Under the pulling action of the loom, the yarn spool continuously releases yarn. However, when the yarn tension decreases under the pulling action of the loom, the spool will still maintain a relatively fast yarn release speed due to inertia, which will further reduce the yarn tension and have a significant impact on production. Utility Model Content

[0004] The purpose of this invention is to provide a tension control device for a loom, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: The loom tension control device includes a base, a rotating shaft on the base, a chassis on the rotating shaft, the chassis being located above the base, an external thread on the upper end of the rotating shaft, and a screw cap threaded to the upper end of the rotating shaft. The base contains two fixed rods and a friction plate, the friction plate being slidably connected to the fixed rods. A fixed plate is mounted on the fixed rod, and an elastic element is sleeved on the fixed rod between the fixed plate and the friction plate. A movable plate is mounted on the fixed rod, and a second elastic element is sleeved on the fixed rod between the movable plate and the friction plate. The base has an installation groove, a support frame is provided on one side of the base, a horizontal plate is provided on the support frame, an upright is provided at the upper end of the horizontal plate and slidably connected to the support frame, an end plate is provided at the upper end of the upright, a spring is sleeved on the upright and located between the support frame and the end plate, a guide rod is provided on the upper surface of the horizontal plate and on both sides of the upright and slidably connected to the support frame, an installation plate is provided on the support frame, pulleys are provided inside the installation groove, on the support frame, on the installation plate and on the lower surface of the horizontal plate, and a connecting rope is also included. One end of the connecting rope is fixedly connected to the movable plate, and the other end of the connecting rope passes through the groove and the pulley on the support frame in sequence before being fixedly connected to the horizontal plate.

[0006] Preferably, the pulley located under the horizontal plate is rotatably connected to the horizontal plate.

[0007] Preferably, a limiting plate is provided at the upper end of the guide rod.

[0008] Preferably, the lower surface of the cap is provided with a ring plate.

[0009] Preferably, the ring plate is made of rubber.

[0010] The beneficial effects of this utility model are:

[0011] When the yarn tension decreases under traction, the spring will cause the upright and horizontal plates to move upward, and the connecting rope to move upward as well. This will compress the second elastic element. After compression, the second elastic element can apply more pressure to the friction plate, thereby increasing the friction between the friction plate and the rotating shaft. This will reduce the rotation speed of the rotating shaft and prevent the bobbin from releasing too much yarn, thus helping to keep the released yarn taut. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0013] Figure 2 This is a bottom view of a specific embodiment of the present invention.

[0014] Figure 3 This is a side view of a specific embodiment of the present invention.

[0015] In the diagram: 1. Wire spool; 2. Base; 3. Rotating shaft; 4. Chassis; 5. Rotating cap; 6. Fixing rod; 7. Friction plate; 8. Fixing plate; 9. Elastic component one; 10. Movable plate; 11. Elastic component two; 12. Support frame; 13. Horizontal plate; 14. Vertical pole; 15. End plate; 16. Spring; 17. Ring plate; 18. Guide rod; 19. Mounting plate; 20. Limiting plate; 21. Pulley; 22. Connecting rope. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0017] like Figure 1-3As shown, a loom tension control device includes a base 2, a rotating shaft 3 mounted on the base 2, the base 2 and the rotating shaft 3 connected by bearings, a base plate 4 mounted on the rotating shaft 3, the base plate 4 located above the base 2, an external thread on the upper end of the rotating shaft 3, and a screw cap 5 threadedly connected to the upper end of the rotating shaft 3, two fixed rods 6 inside the base 2, and a friction plate 7 slidably connected to the fixed rods 6, a fixed plate 8 mounted on the fixed rod 6, an elastic element 9 sleeved on the fixed rod 6, the elastic element 9 being located between the fixed plate 8 and the friction plate 7, a movable plate 10 mounted on the fixed rod 6, and an elastic element 11 sleeved on the fixed rod 6, the elastic element 11 being located between the movable plate 10 and the friction plate 7, an installation groove on the base 2, and a mounting groove on one side of the base 2. The system includes a support frame 12, a horizontal plate 13, and an upright 14 that is slidably connected to the support frame 12 at the upper end of the horizontal plate 13. An end plate 15 is provided at the upper end of the upright 14. A spring 16 is sleeved on the upright 14 between the support frame 12 and the end plate 15. Guide rods 18 that are slidably connected to the support frame 12 are provided on the upper surface of the horizontal plate 13 and on both sides of the upright 14. An mounting plate 19 is provided on the support frame 12. Pulleys 21 are provided inside the mounting groove, on the support frame 12, on the mounting plate 19, and on the lower surface of the horizontal plate 13. The system also includes a connecting rope 22. One end of the connecting rope 22 is fixedly connected to the movable plate 10, and the other end of the connecting rope 22 passes through the groove and the pulleys 21 on the support frame 12 before being fixedly connected to the horizontal plate 13.

[0018] like Figure 3 As shown, when using this device, the bobbin 1 with the yarn wound on it needs to be placed on the rotating shaft 3 first. Then, by rotating the screw cap 5, the bobbin 1 is fixed on the rotating shaft 3. Next, one end of the yarn is pulled out from the bobbin 1 and the yarn is first passed through the pulley 21 under the horizontal plate 13. Then, the yarn is controlled to pass around the pulley 21 on the mounting plate 19. After passing around the pulley 21 on the mounting plate 19, the yarn is directly conveyed to the loom.

[0019] At the same time, spring 16 is in its maximum extended state, and the horizontal plate 13 is also at its highest point within its movable range, such as... Figure 2 As shown, under the action of the connecting rope 22, the elastic element 21 is in a compressed state, and the inner surface of the friction plate 7 is in contact with the outer surface of the rotating shaft 3. Because the elastic element 21 is compressed more, it will exert greater pressure on the friction plate 7, thereby making the contact between the friction plate 7 and the rotating shaft 3 more tight. At the same time, the friction between the rotating shaft 3 and the friction plate 7 is also greater. Due to the restriction of the friction plate 7, the rotating shaft 3 is difficult to rotate easily.

[0020] When the loom is working, it pulls the yarn. The pulled yarn exerts downward pressure on the pulley 21 under the horizontal plate 13, causing the horizontal plate 13 to move downwards. As the horizontal plate 13 moves downwards, it causes the vertical rod 14 and end plate 15 to move downwards. When the end plate 15 moves downwards, it compresses the spring 16. After compression, the spring 16 tends to push the end plate 15 and vertical rod 14 upwards. Simultaneously, as the horizontal plate 13 moves downwards, the connecting rope 22 loosens, and the elastic element 11 returns to its original length, thereby reducing the friction between the friction plate 7 and the rotating shaft 3. The force can make the rotating shaft 3 rotate more smoothly and allow the yarn on the bobbin 1 to be continuously released under tension. When the tension of the loom on the yarn decreases, the spring 16 will drive the upright rod 14 and the horizontal plate 13 to move upward, and drive the connecting rope 22 to move upward. Then the elastic element 11 is compressed. After compression, the elastic element 11 can apply more pressure to the friction plate 7, thereby increasing the friction between the friction plate 7 and the rotating shaft 3, thus limiting the rotation of the rotating shaft 3. This can prevent the bobbin 1 from releasing too much yarn and help keep the released yarn in a taut state.

[0021] When the horizontal plate 13 is in its highest position, even if the elastic element 11 is in its maximum compressed state, the resistance between the friction plate 7 and the rotating shaft 3 will not completely restrict the rotation of the rotating shaft 3. Under the action of the loom providing tension to the yarn, the rotating shaft 3 can still rotate and release the yarn on the bobbin 1. During this process, the frictional resistance between the friction plate 7 and the rotating shaft 3 will gradually decrease, so that the rotating shaft 3 and the bobbin 1 can rotate more smoothly.

[0022] The first elastic element 9 is used to offset part of the squeezing force of the second elastic element 11 on the friction plate 7. As the length of the second elastic element 11 continues to recover, the squeezing force of the second elastic element 11 on the friction plate 7 gradually decreases. With the cooperation of the first elastic element 9, the friction between the friction plate 7 and the rotating shaft 3 will also gradually decrease.

[0023] Furthermore, the pulley 21 located under the horizontal plate 13 is rotatably connected to the horizontal plate 13. Since the yarn on the bobbin 1 is continuously released and the position of the yarn released from the bobbin 1 is constantly changing, the pulley 21 on the horizontal plate 13 can rotate with the movement of the yarn, reducing the friction between the yarn and the pulley 21, thereby reducing wear on the yarn.

[0024] Furthermore, a limit plate 20 is provided at the upper end of the guide rod 18 to prevent the guide rod 18 from completely detaching from the support frame 12.

[0025] Furthermore, a ring plate 17 is provided on the lower surface of the cap 5 to increase the contact area with the spool 1 and to fix the spool 1 more stably.

[0026] Furthermore, the ring plate 17 is made of rubber.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

Claims

1. A tension control device for a loom, characterized in that, The system includes a base, a rotating shaft on the base, a chassis on the rotating shaft, and the chassis located above the base. The upper end of the rotating shaft has an external thread and a screw cap is threaded onto it. The base contains two fixed rods and a friction plate slidably connected to the fixed rods. A fixed plate is mounted on each fixed rod, and an elastic element (first elastic element) is sleeved on the fixed rod between the fixed plate and the friction plate. A movable plate is mounted on the fixed rod, and a second elastic element is sleeved on the fixed rod between the movable plate and the friction plate. The base has an installation groove. A support frame is provided on one side, and a horizontal plate is provided on the support frame. An upright is slidably connected to the support frame at the upper end of the horizontal plate. An end plate is provided at the upper end of the upright. A spring is sleeved on the upright and located between the support frame and the end plate. Guide rods slidably connected to the support frame are provided on the upper surface of the horizontal plate and on both sides of the upright. An mounting plate is provided on the support frame. Pulleys are provided inside the mounting groove, on the support frame, on the mounting plate, and on the lower surface of the horizontal plate. A connecting rope is also included. One end of the connecting rope is fixedly connected to a movable plate, and the other end of the connecting rope passes through the groove and the pulley on the support frame in sequence before being fixedly connected to the horizontal plate.

2. The loom tension control device according to claim 1, characterized in that, The pulleys located under the horizontal plate are rotatably connected to the horizontal plate.

3. The loom tension control device according to claim 1, characterized in that, A limit plate is provided at the upper end of the guide rod.

4. The loom tension control device according to claim 1, characterized in that, The lower surface of the cap is provided with a ring plate.

5. The loom tension control device according to claim 4, characterized in that, The ring plate is made of rubber.

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