warp knitting machine needles

Abstract

The present invention provides a knitting needle for a warp knitting machine, which includes a connecting portion and a guide portion. The connecting portion forms the guide portion along the long axis direction, and the connecting portion is arranged in an inclined shape relative to the guide portion. The guide portion is sequentially formed into an extension section, a slope section and a hook head from the end adjacent to the connecting portion toward the end away from the connecting portion. The cross-section of the guide portion forms a rectangle. The slope section is arranged with a thickness gradually decreasing in the direction away from the extension section, and the slope section is connected to the hook head at the end away from the extension section. The extension section is recessed with a yarn accommodating area on a side perpendicular to the slope section. The yarn accommodating area extends to the area opposite to the slope section, and there is a distance between the hook head and the slope section.

Description

Technical Field

[0001] The invention is applied to the technical field of warp knitting machines, in particular to a knitting needle of a warp knitting machine for hooking yarn. Background Art

[0002] Generally, a warp knitting machine weaves yarn using a plurality of arranged knitting needles for crocheting operations, that is, a plurality of yarn guide rods are used to guide the multiple yarns to the corresponding plurality of knitting needle positions, and the relative movement of the plurality of yarn guide rods and the plurality of knitting needles is used to perform the crocheting operation of the yarn to complete the crocheting of long strips of fabric.

[0003] Generally speaking, most of the knitting needles of warp knitting machines in the prior art have a tongue portion to move the yarn into the space enclosed by the tongue portion of the knitting needle, and a spring is formed on one side of the tongue portion to control the opening and closing of the tongue portion, thereby driving the yarn to move between the tongue portions of the knitting needle.

[0004] However, in the prior art, the tongue of the knitting needle is prone to elastic fatigue due to long-term high-speed opening and closing movement. In addition, during the movement of yarn weaving, the friction between the yarn and the knitting needle is likely to produce lint, which is stuck near the pivot position of the tongue, causing the tongue to operate inaccurately, resulting in the knitting needle being prone to breakage or missed stitches during crocheting. Once one of the knitting needles breaks or misses a stitch, the entire fabric will become a defective product. Summary of the Invention

[0005] The present invention is based on the fact that the knitting needles of the warp knitting machines in the prior art still have the disadvantage of poor performance in actual use, and the present invention is invented to improve the above-mentioned disadvantages.

[0006] The main purpose of the present invention is to provide a knitting needle for a warp knitting machine, which can adjust the smoothness of yarn movement on the knitting needle through the overall structural shape of the knitting needle, so as to improve the knitting effect of the knitting needle and reduce the production of defective knitting products.

[0007] In order to achieve the aforementioned purpose of the invention, the technical means used in the present invention is to provide a knitting needle for a warp knitting machine, which includes a connecting portion and a guide portion, the connecting portion forming the guide portion along the long axis direction, the connecting portion being bent upward or downward once or twice relative to the guide portion and arranged in an inclined shape, the guide portion being formed in sequence from the adjacent connecting portion toward the end away from the connecting portion into an extension section, a slope section and a hook head, the cross-section of the guide portion forming a rectangle, the slope section being gradually tapered in thickness along the direction away from the extension section, and the slope section being connected to the hook head at the end away from the extension section, and the extension section being recessed with a yarn accommodating area on a side perpendicular to the slope section, the yarn accommodating area extending to the area relative to the slope section, and a distance between the hook head and the slope section.

[0008] In one embodiment of the present invention, the knitting needle of the above-mentioned warp knitting machine, wherein the extension section forms a first arc surface and a second arc surface along the long axis direction on both sides adjacent to the yarn accommodating area, and the curvature of the first arc surface is greater than the curvature of the second arc surface.

[0009] In one embodiment of the present invention, the knitting needle of the above-mentioned warp knitting machine, wherein the hook head bends toward the extension section to form an inverted U-shaped section, a straight section and a tail section in sequence, the inverted U-shaped section forms a round rod shape, and the cross-sections of the straight section and the tail section form a rectangular shape.

[0010] In one embodiment of the present invention, the knitting needle of the above-mentioned warp knitting machine, wherein the hook head further includes a flat cone section, and one end of the flat cone section is connected to the inverted U-shaped section, and the other end is connected to the straight section, and the cross-section of the flat cone section gradually changes from the circular shape of the inverted U-shaped section to the straight section.

[0011] In one embodiment of the present invention, the knitting needle of the warp knitting machine is characterized in that the tail section of the hook head is inclined toward the first arc surface so that the tail section exceeds half of the thickness of the guide portion in the direction of the first arc surface at an end edge away from the straight section.

[0012] In one embodiment of the present invention, the knitting needle of the warp knitting machine is configured such that the connecting portion protrudes from an end away from the guiding portion to form a butt. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a three-dimensional appearance diagram of the present invention.

[0015] Figure 2 for Figure 1 A magnified three-dimensional diagram of .

[0016] Figure 3 It is a side view of the present invention.

[0017] Among them, 10 is a connecting portion; 11 is a needle butt; 20 is a guiding portion; 21 is an extension section; 22 is a slope section; 23 is a hook head; 230 is an inverted U-shaped section; 231 is a flat cone section; 232 is a straight section; 233 is a tail section; 24 is a yarn accommodating area; 25 is a first arc surface; 26 is a second arc surface. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0019] like Figures 1 to 3 As shown in the figure, the knitting needle of the warp knitting machine of the present invention includes a connecting portion 10 and a guide portion 20. The connecting portion 10 forms the guide portion 20 along the long axis direction. The connecting portion 10 is arranged in an inclined state with respect to the guide portion 20 and is bent upward or downward once or twice. The connecting portion 10 is formed with a butt 11 protruding from the end away from the guide portion 20, so that the driving device of the warp knitting machine (not shown) can drive the knitting needle to move through the connecting portion 10 to perform crocheting operation.

[0020] The guide portion 20 is formed into an extension section 21, a slope section 22 and a hook head 23 in sequence from the end adjacent to the connecting portion 10 away from the connecting portion 10. The cross section of the guide portion 20 forms a rectangle. The slope section 22 is gradually tapered in thickness along the direction away from the extension section 21, and the slope section 22 is connected to the hook head 23 at the end away from the extension section 21. The extension section 21 is recessed with a yarn accommodating area 24 on a side perpendicular to the slope section 22. The yarn accommodating area 24 extends to an area relative to the slope section 22. The extension section 21 is formed with a first arc surface 25 and a second arc surface 26 along the long axis direction on both sides adjacent to the yarn accommodating area 24. The curvature of the first arc surface 25 is greater than the curvature of the second arc surface 26. The hook head 23 is inclined toward The extension section 21 is bent in a direction to form an inverted U-shaped section 230, a flat cone section 231, a straight section 232 and a tail section 233 in sequence. The inverted U-shaped section 230 is formed into a round rod shape, and the cross-sections of the straight section 232 and the tail section 233 form a rectangular shape. One end of the flat cone section 231 is connected to the inverted U-shaped section 230, and the other end is connected to the straight section 232. The cross-section of the flat cone section 231 gradually changes from the circular shape of the inverted U-shaped section 230 to the rectangular shape toward the straight section 232. There is a distance between the tail section 233 and the slope section 22, and the tail section 233 is inclined toward the first arc surface 25 so that the end edge of the tail section 233 away from the straight section 232 exceeds half of the thickness D of the guide portion 20 in the direction of the first arc surface 25.

[0021] When the warp knitting machine is knitting yarn (not shown in the figure), the connecting portion 10 of the knitting needle is linked to allow the yarn to move between the yarn accommodating area 24 of the guide portion 20, and when the yarn is guided through the first arc surface 25 and the second arc surface 26 of the extension section 21 to the inverted U-shaped section 230, the inverted U-shaped section 230 can be set in a round rod shape to reduce the contact area between the yarn and the knitting needle, thereby facilitating the movement of the yarn and reducing The friction between the hook head 23 and the yarn reduces the problem of yarn breakage caused by the relative movement of the hook head 23 and the yarn. At the same time, the flat cone section 231 of the hook head 23 is used to stabilize the relative movement of the yarn to the straight section 232. The rectangular shape of the straight section 232 increases the contact area between the yarn and the straight section 232 of the hook head 23, providing the yarn with increased stability during weaving and reducing the problems of yarn slippage and breakage.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A knitting needle for a warp knitting machine, characterized in that: The invention comprises a connecting portion and a guiding portion, wherein the connecting portion forms the guiding portion along the longitudinal direction, and the connecting portion is arranged in an inclined shape that is bent upward or downward once or twice relative to the guiding portion. The connecting portion has a needle butt protruding from an end away from the guiding portion. The guiding portion is sequentially formed into an extension section, a slope section, and a hook head from an end adjacent to the connecting portion toward an end away from the guiding portion. The slope section is arranged with a thickness that gradually decreases in a direction away from the extending section, and the slope section is connected to the hook head at an end away from the extending section. The extending section is provided with a yarn accommodating area on a surface perpendicular to the slope section. The yarn accommodating area extends to the slope section, and a distance is provided between the hook head and the slope section. The hook head bends toward the extension section to sequentially form an inverted U-shaped section, a straight section, and a tail section. The inverted U-shaped section is formed into a round rod shape, and the straight section and the tail section have a rectangular cross-section. The hook head further includes a flat cone section, one end of which is connected to the inverted U-shaped section and the other end is connected to the straight section. The cross-section of the flat cone section gradually changes from the circular shape of the inverted U-shaped section to the rectangular shape toward the straight section. The extension section is formed with a first arc surface and a second arc surface along the long axis direction on both sides adjacent to the yarn accommodating area, and the curvature of the first arc surface is greater than the curvature of the second arc surface.

2. The knitting needle of the warp knitting machine according to claim 1, characterized in that The tail section of the hook head is inclined toward the first arc surface.

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