Velvet constant tension knotter

Abstract

The utility model relates to a kind of silk constant tension warp tying device, including the loom and warp tying frame of front and rear arrangement, the loom tail is rotatably provided with weaving shaft, the front and rear sides of the warp tying frame are rotatably provided with pivot, warp tying machine head is provided between two pivots, the weaving shaft and the pivot of rear side are driven synchronous rotation by drive motor, the warp tying machine head is installed in the top of warp tying frame.The weaving shaft and the pivot of rear side are driven synchronous rotation by drive motor, always maintain yarn constant tension, avoid the problem of counter-winding caused by yarn relaxation, solve the yarn disorder entanglement caused by starting machine winding head, improve the overall efficiency of weaving.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment technology, specifically to a constant tension warp knotting device for velvet. Background Technology

[0002] Warp knotting is a process in velvet fabric manufacturing before weaving. It mainly involves quickly connecting the new warp beam to the existing one on the loom. The quality of the warp knotting directly determines the production efficiency and fabric quality, affecting the first-grade product rate.

[0003] The most significant problem with velvet warping currently on the market is the yarn tangling at the start of the machine. This problem causes the yarn to become disordered and tangled, resulting in not only a large amount of wasted yarn material but also significantly extending the time required for warping and machine adjustment, slowing down the overall weaving rhythm and reducing production efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a constant tension warp knotting device for velvet. The warp beam and the rear rotating shaft are driven by a drive motor to rotate synchronously, so that the yarn is in a taut and constant tension state, reducing the occurrence of reverse twisting and improving production efficiency.

[0005] The purpose of this utility model is achieved as follows: A constant tension warp knotting device for velvet includes a loom and a warp knotting frame arranged at the front and rear. The loom has a rotatable warp beam at its tail end, and the warp knotting frame has rotating shafts on both the front and rear sides. A warp knotting head is located between the two rotating shafts. The loom beam and the rear rotating shaft are driven to rotate synchronously by a drive motor. The warp knotting head is installed at the top of the warp knotting frame.

[0006] Preferably, a first transmission sprocket is installed at one end of the rear rotating shaft, and a drive motor is mounted on the knotting frame on the same side as the first transmission sprocket. The output end of the drive motor is connected to a drive shaft, which is rotatably mounted on the knotting frame. A first drive sprocket and a second drive sprocket are fixedly connected to the drive shaft. A first chain is wound between the first drive sprocket and the first transmission sprocket, and a second chain is provided between the second drive sprocket and the second transmission sprocket. The second transmission sprocket is fixed on the drive shaft, which is rotatably mounted on the knotting frame and located on the same side as the drive motor.

[0007] Preferably, a drive wheel is also fixedly provided on the drive shaft, and a transmission wheel is provided on the same side end of the weaving shaft corresponding to the drive wheel, and the drive wheel and the transmission wheel are connected by a transmission belt.

[0008] Preferably, a rear beam is provided above the front side of the warp beam. The two ends of the rear beam are fixed to the loom by an upper support plate. The excess yarn at the end of the previous yarn roll passes through the rear beam and the front rotating shaft in sequence and enters the warp knotting head. Yarn is wound on the warp beam. The yarn end passes through the front rotating shaft, the warp knotting head and the rear rotating shaft in sequence and is fixed on the rear rotating shaft. The excess yarn and the yarn complete the warp knotting in the warp knotting head.

[0009] Preferably, the two ends of the warp beam are fixed to the loom by the loom support arm, and the two ends of the rotating shaft are fixed to the warp frame by the bracket.

[0010] Preferably, the drive motor is fixed on a fixed support plate, and the fixed support plate is fixed on the knotting frame.

[0011] The beneficial effects of this utility model are: By synchronously driving the first and second drive sprockets through the drive motor and drive shaft, and linking the first and second transmission sprockets with the first and second chains respectively, the synchronous operation of the rotating shaft and the transmission shaft is achieved. This enables the transmission shaft to be linked with the transmission wheel of the weaving beam through the drive wheel and transmission belt, so that the speed at which the weaving beam releases yarn is matched with the docking speed of the warping head in real time, maintaining constant yarn tension at all times. This avoids the back-tangle problem caused by yarn slack and solves the yarn disorder and entanglement caused by the starting head, thus reducing the occurrence of back-tangle and improving production efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a constant tension warp knotting device for velvet according to the present invention.

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the tying frame.

[0014] Figure 3 This is a top view of the tying frame.

[0015] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0016] The components are: 1. Warp tie frame; 2. Loom; 3. Loom support arm; 4. Warp beam; 5. Drive motor; 6. Warp tie head; 7. Upper support plate; 8. Rear beam; 9. Transmission wheel; 10. Drive wheel; 11. Second chain; 12. First chain; 13. First transmission sprocket; 14. Bracket; 15. Rotating shaft; 16. Transmission shaft; 17. Second transmission sprocket; 18. Fixed support plate; 19. Drive shaft; 20. First drive sprocket; 21. Second drive sprocket; 22. Bearing; 23. Excess yarn on the machine; 24. Yarn. Detailed Implementation

[0017] See Figure 1-4This utility model relates to a constant tension warp knotting device for velvet, including a loom 2 and a warp knotting frame 1 arranged at the front and rear. The loom 2 has a rotatable warp beam 4 at its tail end, and the two ends of the warp beam 4 are fixed to the loom 2 by a loom support arm 3. The warp knotting frame 1 has rotating shafts 15 on its front and rear sides, and the two ends of the rotating shafts 15 are fixed to the warp knotting frame 1 by a bracket 14. A warp knotting head 6 is provided between the two rotating shafts 15. The warp beam 4 and the rear rotating shaft 15 are driven to rotate synchronously by a drive motor 5. The warp knotting head 6 is installed at the top of the warp knotting frame 1. The warp knotting head 6 is prior art and will not be described in detail here.

[0018] A rear beam 8 is provided above the front side of the warp beam 4. The two ends of the rear beam 8 are fixed to the loom 2 by the upper support plate 7. The rear beam 8 guides the yarn entering the loom 2. The excess yarn 23 at the end of the previous yarn roll passes through the rear beam 8 and the front rotating shaft 15 in sequence and enters the warp knotting head 6. Yarn 24 is wound on the warp beam 4. The yarn end passes through the front rotating shaft 15, the warp knotting head 6 and the rear rotating shaft 15 in sequence and is fixed on the rear rotating shaft 15. The excess yarn 23 and the yarn 24 complete the warp knotting in the warp knotting head 6.

[0019] A first transmission sprocket 13 is installed at one end of the rear rotating shaft 15. The drive motor 5 is located on the knotting frame 1 on the same side as the first transmission sprocket 13. The output end of the drive motor 5 is connected to the drive shaft 19. The drive shaft 19 is fixed to the knotting frame 1 by the bearing 22. A first drive sprocket 20 and a second drive sprocket 21 are fixedly connected to the drive shaft 19. A first chain 12 is wound between the first drive sprocket 20 and the first transmission sprocket 13. A second chain 11 is provided between the second drive sprocket 21 and the second transmission sprocket 17. The second transmission sprocket 17 is fixed on the transmission shaft 16. The transmission shaft 16 is rotatably mounted on the knotting frame 1 by the bearing 22 and is located on the same side as the drive motor 5. The loom support arm 3 provides stable support for the warp beam 4 to prevent swaying. The drive motor 5 drives the double sprockets to rotate synchronously through the drive shaft 19. The corresponding transmission sprockets are linked by the chain to realize the coordinated operation of the rotating shaft 15 and the transmission shaft 16, providing stable power for tension control. The warp knotting head 6 ensures accurate warp yarn docking and solves the problem of asynchronous transmission in traditional systems.

[0020] A drive wheel 10 is also fixedly mounted on the drive shaft 16. A transmission wheel 9 is provided on the same side end of the warp beam 4 corresponding to the drive wheel 10. The drive wheel 10 and the transmission wheel 9 are connected by a transmission belt. The drive shaft 16 drives the transmission wheel 9 of the warp beam 4 through the drive wheel 10 and the transmission belt, so that the speed at which the warp beam 4 releases the yarn 24 matches the subsequent docking speed, ensuring constant tension. The upper support plate 7 fixes the rear beam 8, which guides the remaining yarn 23 to avoid yarn deviation and entanglement, reduce the risk of yarn tangling during start-up, reduce yarn loss, improve docking smoothness, and solve the problem of yarn disorder caused by insufficient traditional guidance.

[0021] The drive motor 5 is fixed on the fixed support plate 18, which is fixed on the tie frame 1. The fixed support plate 18 provides a stable mounting base for the drive motor 5, preventing vibration from affecting the transmission accuracy when the motor is running. The bearing 22 reduces the frictional resistance when the drive shaft 19 and the transmission shaft 16 rotate, thereby improving the transmission efficiency.

[0022] Working principle: Place the warp beam 4 stably on the loom support arm 3 of the loom 2 to complete the installation of the warp beam 4. At the same time, place the relevant structure of the yarn to be joined on the warp tie frame 1, ensuring that the rotating shaft 15 supported by the bracket 14 of the warp tie frame 1 is in a stable state. The drive motor 5 is installed on one side of the warp tie frame 1 through the fixed support plate 18. Start the drive motor 5, and its output drive shaft 19 drives the first drive sprocket 20 and the second drive sprocket 21 to rotate. The first drive sprocket 20 drives the first transmission sprocket 13 of the rotating shaft 15 to rotate through the first chain 12, and the second drive sprocket 21 drives the first transmission sprocket 13 of the rotating shaft 15 to rotate. The sprocket 21 drives the second transmission sprocket 17 of the transmission shaft 16 to rotate via the second chain 11; the drive wheel 10 of the transmission shaft 16 drives the transmission wheel 9 of the warp beam 4 to rotate via the transmission belt, so that the yarn 24 released by the warp beam 4 maintains constant tension and is straightened; the warp head 6 at the top of the warp knotting frame 1 is started, the excess yarn 23 on the machine is joined, and the rear beam 8 assists in guiding the excess yarn to ensure stable yarn tension during the joining process. After the warp knotting is completed, the excess yarn 23 is tightened, the drive motor 5 is turned off to release tension, and the relevant structures of the warp knotting frame 1 are removed to complete the constant tension warp knotting.

[0023] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A constant tension warp knotting device for velvet, characterized in that: It includes a loom and a warp-binding frame arranged at the front and rear. The loom has a rotatable warp beam at its tail end, and the warp-binding frame has rotating shafts on both the front and rear sides. A warp-binding head is located between the two rotating shafts. The loom beam and the rear rotating shaft are driven to rotate synchronously by a drive motor. The warp-binding head is installed at the top of the warp-binding frame.

2. The constant tension warp knotting device for velvet according to claim 1, characterized in that: A first transmission sprocket is installed at one end of the rear rotating shaft. The drive motor is located on the knotting frame on the same side as the first transmission sprocket. The output end of the drive motor is connected to the drive shaft. The drive shaft is rotatably mounted on the knotting frame. A first drive sprocket and a second drive sprocket are fixedly connected to the drive shaft. A first chain is wound between the first drive sprocket and the first transmission sprocket. A second chain is provided between the second drive sprocket and the second transmission sprocket. The second transmission sprocket is fixed on the drive shaft. The drive shaft is rotatably mounted on the knotting frame and is located on the same side as the drive motor.

3. The constant tension warp knotting device for velvet according to claim 2, characterized in that: A drive wheel is also fixedly mounted on the drive shaft, and a transmission wheel is provided on the same side end of the weaving shaft corresponding to the drive wheel. The drive wheel and the transmission wheel are connected by a transmission belt.

4. The constant tension warp knotting device for velvet according to claim 1, characterized in that: A rear beam is provided above the front side of the warp beam. The two ends of the rear beam are fixed to the loom by upper support plates. The excess yarn at the end of the previous yarn roll passes through the rear beam and the front rotating shaft in sequence and enters the warp knotting head. Yarn is wound on the warp beam. The yarn end passes through the front rotating shaft, the warp knotting head and the rear rotating shaft in sequence and is fixed on the rear rotating shaft. The excess yarn and yarn complete the warp knotting in the warp knotting head.

5. A constant tension warp knotting device for velvet according to claim 1, characterized in that: The two ends of the warp beam are fixed to the loom by the loom support arm, and the two ends of the rotating shaft are fixed to the warp frame by the bracket.

6. The constant tension warp knotting device for velvet according to claim 1, characterized in that: The drive motor is fixed to the fixed support plate, and the fixed support plate is fixed to the knotting frame.

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