Yarn nozzle with yarn tensioning structure

Abstract

The invention discloses a yarn nozzle with a yarn tensioning structure, and belongs to the technical field of textile processing, the yarn nozzle comprises a Uz handle and a yarn nozzle, a seat plate is fixed on the side surface of the Uz handle, a plurality of guide cylinders are fixed on the seat plate, a pin rod is mounted on the seat plate, and a tensioning device for rapidly tensioning yarns is connected to the pin rod. A clamping assembly is arranged between the pin rod and the seat plate; yarns penetrate out from the interiors of the guiding and conveying barrels to be guided and conveyed, meanwhile, the yarns penetrate through the interiors of the tensioning devices, the tensioning devices are arranged on the yarn nozzles, the yarns are pulled and tensioned in real time through the tensioning devices, the elastic restoring force of the tensioning devices can be automatically adjusted according to the tension change of the yarns, and the yarn guiding and conveying efficiency is improved. The yarn tensioning device is simple and reliable in structure, does not need an additional power source, can play a role at the moment of shutdown of equipment, prevents the yarn from being loosened due to inertia shaking, and remarkably improves production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile processing, and particularly relates to a yarn nozzle with yarn tensioning structure. BACKGROUND

[0002] Yarn is a continuous linear material made from textile fibers through twisting, combining or bonding, etc. It is the basic raw material for the production of woven, knitted, and embroidered textiles. The manufacturing process of yarn mainly includes two steps: spinning and processing. The spinning process forms single yarn with certain strength and elasticity through steps such as opening, carding, drafting and twisting. The processing step adjusts the structure and performance of the yarn through processes such as doubling, twisting and setting. According to the different raw materials, yarn can be divided into cotton yarn, wool yarn, hemp yarn, chemical fiber yarn and blended yarn, etc. According to the structure, it can be divided into single yarn, strand, fancy yarn, etc. Modern yarn production technology integrates automatic control and precision machining, ensuring the stability of yarn evenness and physical indicators.

[0003] Yarn nozzle is a key component in textile machinery, mainly used to guide and control the movement trajectory of yarn during weaving process, to ensure that the yarn enters the weaving area accurately and stably. Its core technology lies in achieving precise positioning and tension adjustment of the yarn through precise structural design, so as to meet the requirements of different textile processes for yarn conveying. Yarn nozzle is usually made of wear-resistant materials such as ceramics or alloys to withstand the wear caused by high-speed friction, and its internal channel is polished to reduce the running resistance of the yarn. According to different types of textile machines, yarn nozzles can be divided into single-hole, multi-hole, rotary types, etc., which are suitable for plain, jacquard, three-dimensional weaving processes, etc. In computerized flat knitting machines, yarn nozzles realize automatic color changing and yarn switching through the coordinated action with needle selectors, and the movement accuracy directly affects the pattern forming quality. Modern yarn nozzle design integrates the principle of fluid mechanics to optimize the yarn passage curve to reduce the breakage rate.

[0004] In the yarn processing process, the main problem faced by the existing technology is the loss of control of the yarn tension at the yarn nozzle during shutdown or process switching. When the equipment suddenly stops running or changes the processing mode, due to the influence of mechanical inertia and the elastic properties of the yarn, the yarn at the yarn nozzle position will immediately lose tension maintenance and present a clear relaxation state. This yarn relaxation can cause many problems. First, the relaxed yarn is easy to come off or entangle from the yarn guide, causing difficulty in threading during restart. Second, yarn relaxation can cause the fiber structure to be loose, and yarn relaxation can easily cause uneven density at the starting end of the fabric, affecting the quality stability of subsequent processing, increasing raw material loss and scrap rate.

[0005] Therefore, it is necessary to provide a yarn nozzle with yarn tensioning structure to solve the above technical problems. SUMMARY

[0006] The object of the present invention is to provide a yarn mouth with a yarn tensioning structure to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides a solution to the above-mentioned technical problem as follows: a yarn mouth with a yarn tensioning structure, comprising a Us handle and a yarn mouth, a seat plate fixed on the side of the Us handle, a plurality of guide cylinders fixed on the seat plate, a pin rod installed on the seat plate, a tensioning device for quickly tensioning the yarn connected to the pin rod, and a clamping assembly arranged between the pin rod and the seat plate.

[0008] As a further solution of the present invention, the tensioning device includes an eye tube, a torsion spring body is sleeved on the pin rod, a torsion spring long leg is provided at one end of the torsion spring body, the eye tube is fixed to the end of the torsion spring long leg, and the yarn passes through the eye tube.

[0009] As a further solution of the present invention, a short torsion spring leg is fixed to the other end of the torsion spring body, and a plurality of limiting holes are opened on the side surface of the seat plate, and the short torsion spring leg is inserted into one of the limiting holes.

[0010] As a further solution of the present invention, the clamping assembly includes a tongue plate fixed on the side of the pin rod, a round protrusion is fixed on the side of the seat plate, a clamping hole that matches the round protrusion is opened on the side of the tongue plate, and a slot that allows the tongue plate to pass through the side wall of the seat plate is opened on the side of the seat plate.

[0011] As a further solution of the present invention, a convex plate is fixed to the end of the spring tongue plate, and guiding inclined surfaces are provided on both sides of the spring tongue plate.

[0012] As a further solution of the present invention, a ceramic bushing is provided on the inner wall of the eye barrel, and the surface of the bushing is smoothed.

[0013] As a further solution of the present invention, the surface of the torsion spring is covered with an anti-corrosion coating layer.

[0014] As a further solution of the present invention, yarn guide horns are provided at both ends of the eye barrel.

[0015] As a further solution of the present invention, the tensioning devices are symmetrically arranged on both sides of the yarn mouth body to form a dual-channel tensioning structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the yarn is pulled and tensioned in real time by the tensioning device, and the elastic restoring force of the tensioning device can be automatically adjusted according to the change of the yarn tension, ensuring that the yarn always maintains an appropriate tension state, effectively solving the problem of yarn relaxation during shutdown. The structure is simple and reliable, does not require an additional power source, and can play a role at the moment the equipment stops, preventing the yarn from relaxing due to inertial vibration, providing good yarn tension conditions for restarting, and significantly improving production efficiency. The torsion spring can be quickly replaced through the provided card-mounted assembly. The design of the replaceable torsion spring body can easily adapt to the tension requirements of different types of yarns. By matching the torsion spring bodies with different elastic coefficients, the tension of various types of yarns can be accurately controlled to ensure that all types of yarns can achieve the best processing state, effectively improving the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 The overall structure of the present invention is three-dimensional Figure 1 ; Figure 2 It is a schematic diagram of the overall front view structure of the present invention; Figure 3 The overall structure of the present invention is three-dimensional Figure 2 ; Figure 4 for Figure 3 A magnified view of the structure at center A; Figure 5 The overall structure of the present invention is three-dimensional Figure 3 ; Figure 6 for Figure 5 A magnified view of the structure at point B in the middle; Figure 7 Schematic diagram of the local structure of the tensioning device of the present invention Figure 1 ; Figure 8 Schematic diagram of the local structure of the tensioning device of the present invention Figure 2 .

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Tensioning device; 101. Long leg of torsion spring; 102. Torsion spring body; 103. Short leg of torsion spring; 104. Limiting hole; 105. Eye tube; 2. Clamping assembly; 201. Spring tongue plate; 202. Protruding plate; 203. Clamping hole; 204. Round protrusion; 205. Notch; 206. Guide slope; 3. Seat plate; 4. Uss handle; 5. Yarn feeder; 6. Pin rod; 7. Guide tube. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the embodiments.

[0020] See also Figure 1-8 The present invention provides a yarn mouth with a yarn tensioning structure, including an Us handle 4 and a yarn mouth 5. A seat plate 3 is fixed on the side of the Us handle 4, and multiple guide cylinders 7 are fixed on the seat plate 3. A pin rod 6 is installed on the seat plate 3, and a tensioning device 1 for quickly tensioning the yarn is connected to the pin rod 6. A clamping assembly 2 is provided between the pin rod 6 and the seat plate 3; the yarn passes through the multiple guide cylinders 7 for guided transportation, and the yarn passes through the tensioning device 1 in real time by arranging a tensioning device 1 on the yarn mouth. The present invention can automatically adjust the yarn tension according to the change of yarn tension through the elastic restoring force of the tensioning device 1, ensuring that the yarn always maintains an appropriate tensioning state, effectively solving the problem of yarn relaxation during shutdown. The structure is simple and reliable, does not require an additional power source, can work at the moment of equipment shutdown, prevents the yarn from slacking due to inertial jitter, provides good yarn tension conditions for restarting, and significantly improves production efficiency.

[0021] Further as Figure 1 、 Figure 3 and Figure 4 As shown, it is worth mentioning that the tensioning device 1 includes an eye tube 105, a torsion spring body 102 is sleeved on the pin rod 6, and a torsion spring long leg 101 is provided at one end of the torsion spring body 102, and the eye tube 105 is fixed to the end of the torsion spring long leg 101, and the yarn passes through the eye tube 105; the eye tube 105 is elastically pulled back by the torsion spring body 102, so that the yarn is pulled and tensioned in real time by the whole composed of the torsion spring body 102, the torsion spring long leg 101 and the eye tube 105, and the elastic restoring force of the torsion spring body 102 can automatically adjust the position of the eye tube 105 according to the change of yarn tension, so as to ensure that the yarn passing through the eye tube 105 always maintains an appropriately tensioned state, effectively solving the problem of yarn relaxation during shutdown. The structure is simple and reliable, does not require an additional power source, can play a role at the moment of equipment shutdown, prevents the yarn from relaxing due to inertial shaking, provides good yarn tension conditions for restarting, and significantly improves production efficiency.

[0022] Further as Figure 2 and Figure 4 As shown, it is worth mentioning that a torsion spring short leg 103 is fixed to the other end of the torsion spring body 102, and a plurality of limiting holes 104 are provided on the side of the seat plate 3, and the torsion spring short leg 103 is inserted into one of the limiting holes 104; during specific operation, the torsion spring short leg 103 is inserted into the limiting hole 104, thereby locking and limiting the torsion spring body 102 in the reverse direction of rotation, thereby improving the stability of the eye tube 105 in guiding the yarn.

[0023] Further as Figure 5 、 Figure 6 and Figure 7As shown, it is worth mentioning that the clamping assembly 2 includes a tongue plate 201 fixed on the side of the pin rod 6, a round protrusion 204 is fixed on the side of the seat plate 3, a clamping hole 203 that fits with the round protrusion 204 is opened on the side of the tongue plate 201, and a slot 205 that allows the tongue plate 201 to pass through the side wall of the seat plate 3 is opened on the side of the seat plate 3; during specific operation, by rotating the adjustment pin rod 6, the round protrusion 204 is clamped into the clamping hole 203 on the tongue plate 201, thereby limiting and locking the pin rod 6, and completing the rapid installation of the pin rod 6 and the tensioning device 1. When it needs to be removed and replaced, the round protrusion 204 is disengaged from the card hole 203 by pushing the tongue plate 201, so that the adjusting pin 6 can be rotated. When the tongue plate 201 is rotated to the slot 205, the pin 6 and the tensioning device 1 can be removed synchronously, so that the torsion spring can be quickly replaced. The design of the replaceable torsion spring can easily adapt to the tension requirements of different types of yarns. By matching the torsion spring body 102 with different elastic coefficients, the tension degree of various types of yarns can be accurately controlled to ensure that various yarns can obtain the best processing state, effectively improving the overall practicality.

[0024] Further as Figure 6 、 Figure 7 and Figure 8 As shown, it is worth mentioning that a convex plate 202 is fixed to the end of the tongue plate 201, and guide slopes 206 are provided on both sides of the tongue plate 201; during specific work, the convex plate 202 is provided to facilitate the movement of the tongue plate 201, which is convenient for operation, and the guide slope 206 is provided to enable the round protrusion 204 to be smoothly inserted into the card hole 203.

[0025] Further as Figure 7 and Figure 8 As shown, it is worth mentioning that the inner wall of the eye tube 105 is provided with a ceramic bushing, and the surface of the bushing is smoothed; the application of the ceramic bushing greatly reduces the friction resistance of the yarn when passing through, avoiding yarn wear, and the smooth surface treatment ensures smooth sliding of the yarn and reduces tension fluctuations. At the same time, the wear-resistant properties of the ceramic material extend the service life of the eye tube 105, can effectively maintain the original performance of the yarn, and ensure product quality.

[0026] This solution has the following working process: the eye tube 105 is elastically pulled back by the torsion spring body 102, so that the yarn is pulled and tensioned in real time through the whole composed of the torsion spring body 102, the torsion spring long leg 101 and the eye tube 105, and the elastic restoring force of the torsion spring body 102 can automatically adjust the position of the eye tube 105 according to the change of yarn tension, thereby ensuring that the yarn passing through the eye tube 105 always maintains a properly tensioned state, effectively solving the problem of easy relaxation of the yarn; when it needs to be removed and replaced, the round protrusion 204 is disengaged from the card hole 203 by moving the spring tongue plate 201, so that the adjustment pin rod 6 can be rotated, and when the spring tongue plate 201 is rotated to the slot 205, the pin rod 6 and the tensioning device 1 can be removed synchronously, so that the torsion spring can be quickly replaced. The design of the replaceable torsion spring can easily adapt to the tension requirements of different types of yarns.

[0027] It is further worth mentioning that the surface of the torsion spring is covered with an anti-corrosion coating layer; this anti-corrosion treatment makes the torsion spring have excellent durability. This design can resist the corrosion of moisture and chemicals commonly found in textile workshops, ensuring stable elastic performance during long-term use, reducing downtime and maintenance caused by spring failure, and improving equipment utilization.

[0028] It is further worth mentioning that both ends of the eye tube 105 are provided with yarn guide bell mouths; the design of the yarn guide bell mouths makes the yarn enter and exit more smoothly, avoids the yarn from being worn or stuck at the port, ensures that the tensioning process is smooth and continuous, and improves the reliability of the device.

[0029] Further as Figure 1 、 Figure 2 and Figure 3 As shown, it is worth mentioning that the tensioning device 1 is symmetrically arranged on both sides of the yarn mouth body to form a dual-channel tensioning structure; the dual-channel design improves the uniformity and stability of the yarn tensioning, and the symmetrically arranged structure balances the force on the yarn mouth to prevent the deflection problem caused by excessive tension on one side, which is particularly suitable for the processing of high-count yarns or high-density fabrics, further improving product quality and production efficiency.

[0030] In summary: the yarn is pulled and tensioned in real time through the tensioning device 1, and the elastic restoring force of the tensioning device 1 can be automatically adjusted according to the change of yarn tension, ensuring that the yarn always maintains an appropriately tensioned state, effectively solving the problem of yarn relaxation during shutdown. The structure is simple and reliable, does not require an additional power source, and can take effect at the moment the equipment stops, preventing the yarn from relaxing due to inertial vibration, providing good yarn tension conditions for restarting, and significantly improving production efficiency.

Claims

1. A yarn mouth with a yarn tensioning structure, comprising a Uss handle (4) and a yarn mouth (5), characterized in that: A seat plate (3) is fixed on the side of the Us handle (4), a plurality of guide cylinders (7) are fixed on the seat plate (3), a pin rod (6) is installed on the seat plate (3), a tensioning device (1) for quickly tensioning the yarn is connected to the pin rod (6), and a clamping assembly (2) is provided between the pin rod (6) and the seat plate (3).

2. The yarn mouth with a yarn tensioning structure according to claim 1, characterized in that: The tensioning device (1) comprises an eye tube (105), a torsion spring body (102) is sleeved on the pin rod (6), a torsion spring long leg (101) is provided at one end of the torsion spring body (102), the eye tube (105) is fixed to the end of the torsion spring long leg (101), and the yarn passes through the eye tube (105).

3. The yarn mouth with a yarn tensioning structure according to claim 2, characterized in that: A torsion spring short leg (103) is fixed to the other end of the torsion spring body (102), and a plurality of limiting holes (104) are provided on the side surface of the seat plate (3), and the torsion spring short leg (103) is inserted into one of the limiting holes (104).

4. The yarn mouth with a yarn tensioning structure according to claim 1, characterized in that: The clamping assembly (2) comprises a tongue plate (201) fixed on the side of the pin rod (6), a round protrusion (204) is fixed on the side of the seat plate (3), a clamping hole (203) is provided on the side of the tongue plate (201) to fit the round protrusion (204), and a notch (205) is provided on the side of the seat plate (3) to allow the tongue plate (201) to pass through the side wall of the seat plate (3).

5. The yarn mouth with a yarn tensioning structure according to claim 4, characterized in that: A convex plate (202) is fixed to the end of the elastic tongue plate (201).

6. The yarn mouth with a yarn tensioning structure according to claim 2, characterized in that: The inner wall of the eye barrel (105) is provided with a ceramic bushing, and the surface of the bushing is smoothed.

7. The yarn mouth with a yarn tensioning structure according to claim 5, characterized in that: Both sides of the spring tongue plate (201) are provided with guiding inclined surfaces (206), and the surface of the torsion spring is covered with an anti-corrosion coating layer.

8. The yarn mouth with a yarn tensioning structure according to claim 3, characterized in that: Yarn guide horns are provided at both ends of the eye barrel (105).

9. The yarn mouth with a yarn tensioning structure according to any one of claims 1 to 8, characterized in that: The tensioning devices (1) are symmetrically arranged on both sides of the yarn mouth body, forming a double-channel tensioning structure.

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