Yarn splitting device capable of reducing swing inertia of guide bar

Abstract

The utility model discloses a yarn dividing device capable of reducing the swing inertia of a guide bar, which comprises a first yarn dividing needle assembly, a yarn guide cap assembly and a second yarn dividing needle assembly which are arranged in parallel, two tension wallboards are arranged at the front end of a looping area, a supporting seat is arranged on each tension wallboard, and a yarn guide rod is arranged on the supporting seat. The first yarn separating needle assembly, the yarn guiding cap assembly and the second yarn separating needle assembly are sequentially installed between the two supporting seats from front to back according to a yarn conveying path, a second yarn separating needle seat is installed on the supporting seats, the section of the second yarn separating needle seat is in a U-like shape, the side face of the second yarn separating needle seat is attached to the supporting seats, and the bottom of the needle seat is connected with the supporting seats through bolts. A tubular base is embedded in the hollow portion of the needle seat, the base is fixedly connected with the second yarn dividing needle seat, and the second yarn dividing needle assembly is fixedly installed on the surface of the base. The fixed tension wall plate ensures the working stability of the yarn splitting device; meanwhile, the distance between the second yarn separating needle assembly and a yarn guiding needle on the guide bar is close, yarn shaking can be effectively prevented, and the motion inertia is reduced.

Description

A yarn separating device that can reduce the oscillation inertia of the comb bar Technical Field

[0001] This utility model relates to the field of textile machinery and equipment, and in particular to a yarn separating device that can reduce the oscillation inertia of the comb bar. Background Technology

[0002] During high-speed warp knitting, yarn tension is affected by various factors, such as changes in machine speed and warp feed rate. If the tension compensation device cannot compensate for tension changes in a timely and accurate manner, it will lead to yarn tension fluctuations, which in turn will cause vibration. Machine speed is a crucial factor affecting the dynamic tension of warp-knitted yarn. When the machine speed is too high, the yarn needs to complete more movements in a short period of time, resulting in more complex and drastic tension changes, which can easily lead to yarn vibration.

[0003] To ensure smooth yarn movement, warp knitting machines typically add guide rods or yarn separating needles where the yarn tangles or vibrates. For example, if there is yarn vibration before the yarn enters the guide needles, the traditional solution is to assemble a row of yarn separating needles on the upper surface of the guide bar hanger. However, during operation, as the guide bar swings, the yarn separating needles also swing. Since the weight of the yarn separating needles rests on the guide bar swing arm, the moment of inertia increases during operation, leading to a decrease in knitting speed. Summary of the Invention

[0004] The purpose of this invention is to provide a yarn separating device that can reduce the oscillation inertia of the comb bar.

[0005] The technical solution to achieve the purpose of this utility model is: a yarn separating device that can reduce the oscillation inertia of the comb bar, located at the front end of the looping area, comprising a first yarn separating needle assembly, a yarn guide cap assembly, and a second yarn separating needle assembly arranged in parallel. Two tension wall plates are fixedly installed at the front end of the looping area, and a support seat is installed on each tension wall plate. The first yarn separating needle assembly, the yarn guide cap assembly, and the second yarn separating needle assembly are installed sequentially between the two support seats according to the yarn conveying path from front to back. A second yarn separating needle seat is installed on the support seat. The cross-sectional shape of the second yarn separating needle seat is U-shaped. The second yarn separating needle seat has a needle seat bottom, a needle seat hollow part, and a notch communicating with the needle seat hollow part. The side of the second yarn separating needle seat is attached to the support seat. One side of the bottom of the needle seat is bolted to the support seat. A tubular base is embedded in the needle seat hollow part. The base is fixedly connected to the second yarn separating needle seat. The second yarn separating needle assembly is fixedly installed on the surface of the base located at the notch position.

[0006] Furthermore, the base is a square tube.

[0007] Furthermore, the support base has a strip-shaped hole, the length of which faces the yarn delivery path between the first and second yarn separating needle assemblies. The support base is connected to the tension wall plate by bolts passing through the strip-shaped hole. The design of the strip-shaped hole allows for positional changes in the support base, thereby adjusting the yarn tension.

[0008] The yarn separating device of this invention replaces the yarn separating needle assembly mounted on the guide bar hanger with one mounted on the tension wall plate. Since the tension wall plate is fixed and does not swing with the swing of the guide bar arm, the stability of the yarn separating device is ensured. At the same time, the yarn separating device is located at the front end of the loop forming area and is adjacent to the loop forming area. The distance between the second yarn separating needle assembly and the guide needle on the guide bar is relatively close, which can effectively prevent yarn vibration, reduce the moment of inertia, and improve the weaving speed and fabric quality. Attached Figure Description

[0009] Figure 1 is a simplified structural diagram of the yarn separating device that can reduce the oscillation inertia of the comb bar according to an embodiment of the present invention, wherein the arrows represent the yarn conveying path;

[0010] Figure 2 is a schematic diagram of the installation structure of the second yarn separating needle assembly in an embodiment of the present invention;

[0011] Figure 3 is an enlarged structural diagram of part A in Figure 2. Detailed Implementation

[0012] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0013] As shown in Figures 1 to 3, a yarn separating device that reduces the oscillation inertia of a comb bar is located at the front end of a looping area 100. It includes a first yarn separating needle assembly 1, a yarn guide cap assembly 2, and a second yarn separating needle assembly 3 arranged in parallel. Two tension wall plates 10 are fixedly installed at the front end of the looping area 100. A support base 4 is installed on each tension wall plate 10. The first yarn separating needle assembly 1, the yarn guide cap assembly 2, and the second yarn separating needle assembly 3 are installed sequentially between the two support bases 4 according to the yarn transport path from front to back. A second yarn separating needle assembly is installed on each support base 4. The needle holder 5 has a U-shaped cross-section and includes a bottom 51, a hollow portion 52, and a notch 53 communicating with the hollow portion. The side 54 of the second yarn separating needle holder 5 is attached to the support base 4. The bottom 51 of the needle holder is bolted to the support base 4. A base 6 is embedded in the hollow portion 52 of the needle holder. The base 6 is a square tube and is bolted to the second yarn separating needle holder 5. The second yarn separating needle assembly 3 is fixedly installed on the surface of the base 6 located at the notch 53.

[0014] Furthermore, the support base 4 has a strip-shaped hole 41, the length direction of which faces the yarn delivery path between the first yarn separating needle assembly 1 and the second yarn separating needle assembly 3. The support base 4 is connected to the tension wall plate 10 by bolts passing through the strip-shaped hole 41.

[0015] The shape of the base described in this utility model is not limited to that shown in the embodiment. It can also be other special-shaped tubes that match the hollow part of the needle seat. The square tube structure is easy to obtain materials, and the flat surface makes it easy to install the second yarn separating needle assembly.

[0016] During operation, yarn 100 is conveyed to the looping area 100 via the first yarn separating needle assembly 1, the yarn guide cap 2, and the second yarn separating needle assembly 3. In this embodiment, the yarn separating device replaces the yarn separating needle assembly mounted on the guide bar hanger with one mounted on the tension wall plate. Since the tension wall plate is fixed and does not swing with the guide bar arm, the stability of the yarn separating device is ensured. Simultaneously, the yarn separating device is located at the front end of the looping area, adjacent to it. The distance between the second yarn separating needle assembly and the yarn guide needle on the guide bar is relatively close, effectively preventing yarn vibration, reducing moment of inertia, allowing the yarn to be evenly distributed into the looping area, reducing vertical stripes, and improving weaving speed and fabric quality.

[0017] The side of the second yarn dividing needle holder is attached to the support base, so that the second yarn dividing needle holder can rotate along the side of the support base, thereby realizing the angle adjustment of the second yarn dividing needle assembly and ensuring the stability of the end yarn. When the second yarn dividing needle assembly is not needed for yarn control, the second yarn dividing needle holder and the second yarn dividing needle assembly can be removed as a whole, which is convenient for disassembly and assembly.

[0018] The base described in this utility model is not limited to square tubes, but can also be horseshoe-shaped tubes or other irregularly shaped tubes. The hollow tubular structure facilitates the installation of yarn separating needles, but the structure of square tubes makes the assembly more reliable. The structure of the support is not limited to that shown in the embodiment. The design of the strip hole allows for the position change of the support, thereby adjusting the tension of the yarn.

[0019] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent process transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A yarn separating device that can reduce the oscillation inertia of a comb bar, characterized in that: Located at the front end of the loop-forming area, it includes a first yarn-dividing needle assembly, a yarn-guide cap assembly, and a second yarn-dividing needle assembly arranged in parallel. Two tension wall plates are fixedly installed at the front end of the loop-forming area, and a support seat is installed on each tension wall plate. The first yarn-dividing needle assembly, the yarn-guide cap assembly, and the second yarn-dividing needle assembly are installed sequentially between the two support seats according to the yarn conveying path from front to back. A second yarn-dividing needle seat is installed on the support seat. The cross-sectional shape of the second yarn-dividing needle seat is U-shaped. The second yarn-dividing needle seat has a needle seat bottom, a needle seat hollow part, and a notch communicating with the needle seat hollow part. The side of the second yarn-dividing needle seat is attached to the support seat. One side of the needle seat bottom is bolted to the support seat. A tubular base is embedded in the needle seat hollow part. The base is fixedly connected to the second yarn-dividing needle seat. The second yarn-dividing needle assembly is fixedly installed on the surface of the base located at the notch.

2. The yarn separating device for reducing the oscillation inertia of the comb bar according to claim 1, characterized in that: The base is a square tube.

3. The yarn separating device for reducing the oscillation inertia of the comb bar according to claim 2, characterized in that: The support base has a strip-shaped hole, the length of which faces the yarn delivery path between the first yarn separating needle assembly and the second yarn separating needle assembly. The support base is connected to the tension wall plate by bolts passing through the strip-shaped hole.

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