TWI818570B - Knitting needles for warp knitting machines - Google Patents

Abstract

The present invention is a knitting needle for a warp knitting machine, which includes a connecting part and a guide part. The connecting part forms the guide part along the long axis direction. The connecting part is arranged in an inclined manner relative to the guide part. , the guide part is sequentially formed into an extension section, a slope section and a hook head from the end of the adjacent connecting part facing away from the connecting part. The cross section of the guide part forms a rectangle, and the slope section is along the edge away from the extension section. The direction thickness is tapered, and the slope section is connected to the hook head at an end away from the extension section, and a yarn accommodation area is recessed on a surface of the extension section perpendicular to the slope section, and the yarn accommodation area is The area extends to the area relative to the slope section, and there is a distance between the hook head and the slope section.

Description

Knitting needles for warp knitting machines

The present invention is applied to the technical field of warp knitting machines, and particularly refers to a knitting needle of a warp knitting machine used to hook yarns.

Generally, warp knitting machines use a plurality of knitting needles to knit yarn for crocheting. That is, a plurality of yarn guide rods are used to guide the yarn to the corresponding position of a plurality of knitting needles. The relative movement of the knitting needles is used to crochet the yarn and complete the crocheting of long strips of fabric.

It is generally known that most of the knitting needles of warp knitting machines have tongues to move the yarn into the space surrounded by the tongues of the knitting needles, and a spring is formed on one side of the tongues to control the tongues. The opening and closing of the knitting needle drives the yarn to move between the tongues of the knitting needles.

However, it is known that the tongue of the knitting needle is prone to elastic fatigue and other problems due to long-term high-speed opening and closing movements. In addition, during the knitting movement of the yarn, the friction between the yarn and the knitting needle is also prone to produce lint, which gets stuck on the tongue. Near the pivot position, the operation of the tongue is unreliable, causing the knitting needles to easily break when crocheting or missing stitches. Once one of the knitting needles breaks or misses a stitch, the entire fabric will become unstable. Good product, but improved.

In view of the fact that the knitting needles of conventional warp knitting machines still have the disadvantage of poor performance in actual use, the inventor invented the present invention to improve them.

The main purpose of the present invention is to provide a knitting needle for a warp knitting machine, which can adjust the smoothness of the movement of the yarn on the knitting needle through the overall structural shape of the knitting needle, so as to improve the knitting efficiency of the knitting needle. The use effect reduces the occurrence of defective weaving products.

In order to achieve the foregoing object 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 part and a guiding part, and the connecting part forms the guiding part along the long axis direction. part, the connecting part is bent upward or downward once or twice obliquely with respect to the guide part, and the guide part is sequentially formed into an extension section from the end of the adjacent connecting part facing away, A slope section and a hook head. The cross section of the guide section forms a rectangle. The slope section is tapered in thickness in a direction away from the extension section. The slope section is connected to the hook head at one end away from the extension section. , and the extension section is recessed with a yarn accommodation area on a surface perpendicular to the slope section. The yarn accommodation area extends to the area relative to the slope section, and there is a distance between the hook head and the slope section.

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

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

In one embodiment of the present invention, the hook head of the knitting needle of the above-mentioned warp knitting machine 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 rectangular shape of the straight section.

In one embodiment of the present invention, the knitting needle of the above-mentioned warp knitting machine, wherein the hook The tail section of the head is inclined toward the first arc direction, so that the end edge of the tail section away from the straight section exceeds the guide portion to form half of the thickness in the first arc direction.

In one embodiment of the present invention, the knitting needle of the above-mentioned warp knitting machine has a needle butt protruding from an end of the connecting portion away from the guide portion.

10:Connection Department

11: Needle heel

20: Guidance Department

21:Extended section

22:Slope section

23: Hook head

230:Inverted U-shaped section

231: Flat cone section

232: Straight section

233:Tail section

24:Yarn accommodation area

25: First arc surface

26:Second arc surface

[Figure 1] is a three-dimensional appearance view of the present invention.

[Figure 2] is an enlarged three-dimensional view of Figure 1.

[Fig. 3] is a side view of the present invention.

As shown in Figures 1 to 3, the knitting needle of the warp knitting machine of the present invention, as shown in the figure, includes a connecting part 10 and a guide part 20. The connecting part 10 is along the long axis direction. The guide part 20 is formed. The connection part 10 is bent upward or downward once or twice in an inclined manner relative to the guide part 20 . The connection part 10 is formed by protruding from an end away from the guide part 20 There is a needle butt 11 for the driving device of the warp knitting machine (not shown in the figure) to drive the knitting needle to move through the connecting portion 10 of the knitting needle to perform crocheting operations.

The guide portion 20 is sequentially formed into an extension section 21, a slope section 22 and a hook 23 from the far away end adjacent to the connecting section 10. The cross section of the guide section 20 forms a rectangle, and the slope section 22 The thickness is tapered along the direction away from the extension section 21, and the slope section 22 is connected to the hook head 23 at one end away from the extension section 21, and the extension section 21 is recessed on a side perpendicular to the slope section 22. There is a yarn accommodating area 24, the yarn accommodating area 24 extends to the area opposite to the slope section 22, the extension section 21 is formed with a longitudinal axis direction on both sides of the adjacent yarn accommodating area 24. A first arc surface 25 and a second arc surface 26. The curvature of the first arc surface 25 is greater than the curvature of the second arc surface 26. The hook head 23 bends toward the extension section 21 to form an inverted U. Shaped section 230, an oblate cone section 231, a straight section 232 and a tail section 233. The inverted U-shaped section 230 forms a round rod shape, and the straight section 232 and the tail section 233 have a rectangular cross-section. And 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, so that the cross section of the flat cone section 231 is from the circular shape of the inverted U-shaped section 230 to the straight section. 232 gradually becomes a rectangle, and 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 tail section 233 can be positioned at one end away from the straight section 232. The edge exceeds half of the thickness D of the first arc surface 25 in the direction of the guide portion 20 .

When the warp knitting machine is crocheting a yarn (not shown in the figure), the connecting portion 10 of the knitting needle will be linked so that the yarn can move between the yarn receiving areas 24 of the guide portion 20 , and by guiding the yarn 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 configured into a round rod shape. , thereby reducing the contact area between the yarn and the knitting needle, facilitating the movement of the yarn, reducing the friction between the hook head 23 and the yarn, and reducing the friction between the hook head 23 and the yarn when they move relative to each other. To solve the problem of yarn breakage, 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 arrangement of the straight section 232 increases the distance between the yarn and the yarn. The contact area between the straight sections 232 of the hook head 23 provides the yarn with increased stability during weaving and reduces the problems of yarn slippage and thread breakage.

The present invention has been described through the above-mentioned embodiments and variations. All embodiments and variations of the present invention are only illustrative. Based on the essential spirit and scope of the present invention, the knitting needles of the warp knitting machine including the above characteristics are Various changes are covered by this new model.

10:Connection Department

11: Needle heel

20: Guidance Department

21:Extended section

22:Slope section

23: Hook head

Claims (6)

A knitting needle of a warp knitting machine, including a connecting part and a guide part. The connecting part forms the guide part along the long axis direction. The connecting part is bent upward or downward relative to the guide part once or The connecting part is arranged in a secondary inclined shape, and a needle butt protrudes from the end away from the guide part. The guide part is sequentially formed into an extension section, a slope section and an end from the adjacent end of the connection part away from the guide part. A hook head, the cross-section of the guide part forms a rectangle, the slope section is arranged in a tapering shape along the direction away from the extension section, and the slope section is connected to the hook head at an end away from the extension section, and the extension section A yarn accommodating area is recessed on a surface of the section perpendicular to the slope section. The yarn accommodating area extends to an area relative to the slope section, and there is a distance between the hook head and the slope section. The knitting needle of the warp knitting machine according to claim 1, wherein the extension section forms a first arc surface and a second arc surface respectively on both sides of the adjacent yarn accommodation area along the long axis direction, and the The curvature of the first arc surface is greater than the curvature of the second arc surface. The knitting needle of the warp knitting machine as claimed in claim 1, wherein the hook head is bent toward the extension section to form an inverted U-shaped section, a straight section and a tail section, and the inverted U-shaped section forms a circle. It is rod-shaped, and the cross-sections of the straight section and the tail section form a rectangular shape. The knitting needle of the warp knitting machine as described in claim 3, 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 for providing The cross section of the oblate cone section gradually changes from the circular shape of the inverted U-shaped section to the rectangular shape of the straight section. The knitting needle of the warp knitting machine as described in claim 2, wherein the hook head is bent toward the extension section to form an inverted U-shaped section, a straight section and a tail section, and the inverted U-shaped section forms a circle. It is rod-shaped, and the cross-sections of the straight section and the tail section form a rectangular shape. The knitting needle of the warp knitting machine as described in claim 5, wherein the tail section of the hook head faces the The first arc surface direction is inclined so that the end edge of the tail section away from the straight section exceeds the guide portion to form half of the thickness of the first arc surface direction.

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