Improved shogging needle for a flat knitting machine and method of use

Abstract

The present application belongs to the technical field of textile tools, and particularly relates to an improved flat knitting needle and a use method. The flat knitting needle comprises a needle rod, a needle tongue and a needle hook. An oblique cutting surface in an elliptical structure is arranged on the outer curved surface of the needle hook. The oblique cutting surface is arranged at the upper curved portion of the needle hook at an angle of 30-40 degrees relative to the curved portion of the top of the needle hook and is located at the opening where the needle hook and the needle tongue overlap and extend. The present application not only solves the problem of yarn sliding through the needle position, greatly improves the probability of yarn lifting the needle tongue, but also precisely controls the probability of yarn aligning with the needle position, solves the problem of missing stitches caused by yarn sliding through the needle position, greatly improves the effect of yarn knitting into loops, thereby precisely controlling the quality of the knitted fabric, and is suitable for mass production of knitted fabric.

Description

Technical Field

[0001] This invention belongs to the technical field of textile tools, specifically relating to an improved flat knitting needle and its usage method. Background Technology

[0002] A flat knitting machine is a machine that uses a horizontal knitting needle bed for knitting. Its development includes hand-cranked flat knitting machines, semi-automatic flat knitting machines, and computerized flat knitting machines. Its main components include the frame, needle plate, guide rails, knitting head, and pattern board. The needle plate has multiple needle slots, in which knitting needles are placed. These needles are made of steel wire or steel strip through machining and are used to knit yarn into loops and connect the loops to form knitted fabric. The structure of the knitting needle includes the needle bar, needle latch, needle hook, and needle spring. When the needle is not in motion, the needle latch and needle hook are in a closed state. During knitting, the needle latch must be moved away from the needle hook (i.e., the needle latch is opened) to allow the yarn to enter the needle hook, where it is knitted into loops by the knitting machine's knitting mechanism. Currently, most knitting needle hooks use a hemispherical structure. This structure uses the hook to open the needle latch, reducing the limited space inside the needle hook. This results in insufficient yarn capacity within the needle hook and makes it prone to yarn leakage during knitting, leading to substandard knitted fabric.

[0003] Existing technologies include research on the issue of yarn leakage caused by the opening of the needle latch in hemispherical needle hooks, such as CN202440636U-New Type of Computerized Flat Knitting Machine Needle and CN103710855A-A Type of Flat Knitting Machine Needle. These technologies address the problem of yarn leakage, yarn slippage, or difficulty in yarn detachment caused by using hemispherical needle hooks by modifying the shape of the needle hook or creating a V-shaped angle between the needle latch and the hook. However, existing flat knitting machine needles only guarantee the probability of the yarn opening the needle latch; the probability of the yarn aligning with the needle insertion point is difficult to control precisely. This makes it difficult for the yarn to accurately enter the needle hook, resulting in yarn leakage and hindering precise control of the knitted fabric quality. Therefore, a new technical solution is needed to address these problems. Summary of the Invention

[0004] The purpose of this invention is to provide an improved flat knitting needle and its usage method to solve the problems mentioned in the background art, such as the difficulty in accurately controlling the probability of the yarn aligning with the needle position of the current flat knitting needle, making it difficult for the yarn to accurately enter the needle hook, resulting in missed needles and difficulty in accurately controlling the quality of the knitted fabric.

[0005] In order to achieve the above object, the present application provides the following technical scheme: An improved type of flat knitting needle, comprising a needle rod, a needle tongue rotating at the head of the needle rod, and a needle hook fixed at the end of the needle rod and arranged in lap with the needle tongue, wherein an oblique surface in an elliptical structure is arranged on the outer curved surface of the needle hook, and the oblique surface is arranged at the upper curved portion of the needle hook at an angle of 30-40 degrees relative to the curved portion at the top of the needle hook and is located at the opening extended by the lap of the needle hook and the needle tongue.

[0006] Further, the oblique surface is arranged on the curved portion A at the upper portion of the needle hook, the top end of the curved portion A is arranged in lap with the end of the needle tongue, and the bottom end of the curved portion A is fixedly connected with a curved portion B arranged at the lower portion of the needle hook, and the curvature radius of the curved portion B is greater than that of the curved portion A.

[0007] Further, the top end of the curved portion B is fixedly connected with the bottom end of the curved portion A, the bottom end of the curved portion B is fixedly connected with a connecting portion, and the connecting portion is fixedly connected with the end of the needle rod.

[0008] Further, one end of the needle tongue is arranged in lap with the top end of the curved portion A and is extended to form a needle receiving groove with the curved surface and the oblique surface of the curved portion A, the upper end of the needle receiving groove is the lower side wall of the needle tongue, the lower end of the needle receiving groove is the needle receiving wall composed of the curved surface and the oblique surface of the curved portion A, and the other end of the needle tongue is penetrated by a pin shaft and is rotated at the head of the needle rod through the pin shaft.

[0009] The yarn is knitted by using the improved type of flat knitting needle arranged above, and the specific steps are as follows: firstly, the yarn is moved to the oblique surface by the knitter of the flat knitting machine; secondly, the yarn is slid into the needle receiving groove by using the contact area of the oblique surface and the needle tongue is opened; then the yarn enters the groove of the needle hook after the needle tongue is opened, and finally the yarn in the groove is knitted into a loop by the knitter of the flat knitting machine.

[0010] Compared with the prior art, the present application has the following beneficial effects:

[0011] 1. The needle hook arranged with the circular arc and the oblique surface effectively relieves the bending radius of the needle hook, the opening of the needle tongue can be maximized when the needle tongue is closed with the needle hook, the yarn is more easily aligned with the needle receiving position, the problem of yarn sliding through the needle receiving position is effectively avoided, the probability of yarn opening the needle tongue is greatly improved, the oblique surface arranged in an elliptical structure and at an angle of 30-40 degrees effectively improves the contact area of the needle hook, the yarn quickly and accurately enters the opening extended by the lap of the needle hook and the needle tongue under the action of the oblique surface, the probability of yarn aligning with the needle receiving position is accurately controlled, the problem of missing stitches caused by yarn sliding through the needle receiving position is effectively avoided, the effect of yarn knitting into a loop is greatly improved, the quality of the knitted fabric is accurately controlled, and the present application is suitable for mass production of knitted fabrics.

[0012] 2. The invention adopts the needle hook composed of the bending part A, the bending part B and the connecting part, so that the horizontal machine knitting needle can ensure the needle hook to be correctly introduced into the gap of the turning spring and the loop when knitting the transfer loop and turning, effectively avoids the missing needle phenomenon caused by the guiding error of the half-round ball needle hook when transferring the loop, effectively improves the transfer loop effect and efficiency, and ensures the quality of the knitted fabric;

[0013] 3. The invention adopts the needle latch, the bending part A and the bevel surface to form the needle receiving groove, so that the needle hook and the needle latch can produce the needle receiving groove when closing, which can accommodate the yarn more easily, so that the yarn can be more easily aligned with the needle receiving position, effectively improves the probability of the yarn to open the needle latch, solves the problem of missing needle caused by the yarn sliding through the needle receiving position, greatly improves the effect of the yarn knitting into the loop, and accurately controls the quality of the knitted fabric, which is suitable for mass production of knitted fabric. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the knitting needle part of the invention;

[0015] Figure 2 It is a schematic diagram of the structure of the invention; Figure 1 It is a schematic diagram of the structure of the invention;

[0016] Figure 3 It is a schematic diagram of the structure of the invention;

[0017] Figure 4 It is a schematic diagram of the structure of the invention;

[0018] Figure 5 It is a schematic diagram of the structure of the invention.

[0019] Wherein: 1, needle stem; 2, needle latch; 3, needle hook; 301, bending part A; 302, bending part B; 303, connecting part; 4, bevel surface; 5, needle receiving groove; 6, pin shaft. DETAILED DESCRIPTION

[0020] The following examples are used to further illustrate the content of the invention, and do not limit the application of the invention. Example 1:

[0021] Please refer to Figures 1-3An improved type of flat machine knitting needle, comprising a needle rod 1 for knitting, a needle tongue 2 rotating at the head of the needle rod 1, and a needle hook 3 fixed at the end of the needle rod 1 and arranged in lap with the needle tongue 2, an oblique surface 4 in the form of an oval structure and used for increasing the contact area is arranged on the outer curved surface of the needle hook 3, the oblique surface 4 is arranged at the upper curved part of the needle hook 3 at an angle of 30 degrees relative to the top bending part of the needle hook 3 and is located at the opening where the needle hook 3 and the needle tongue 2 lap and extend, the oblique surface 4 with an angle of 30 degrees can increase the contact area between the yarn and the needle hook 3, so that the yarn is more easily aligned with the needle receiving position, the probability of the yarn being aligned with the needle receiving position is 99.5%, and the thickness of the needle hook 3 provided with the oblique surface 4 is reduced by 3% relative to the original thickness of the needle hook 3.

[0022] Please refer to Figures 2-3 , the oblique surface 4 is arranged on the curved part A301 of the upper part of the needle hook 3, the top end of the curved part A301 is arranged in lap with the end of the needle tongue 2, one end of the needle tongue 2 is arranged in lap with the top end of the curved part A301 and extends to form a needle receiving groove 5 with the curved surface of the curved part A301 and the oblique surface 4, the upper end of the needle receiving groove 5 is the lower side wall of the needle tongue 2, the lower end of the needle receiving groove 5 is the needle receiving wall composed of the curved surface of the curved part A301 and the oblique surface 4, the other end of the needle tongue 2 penetrates a pin shaft 6 for hinging and rotates on the head of the needle rod 1 through the pin shaft 6;

[0023] The bottom end of the curved part A301 is fixedly connected with a curved part B302 arranged on the lower part of the needle hook 3, the curvature radius of the curved part B302 is greater than that of the curved part A301, the top end of the curved part B302 is fixedly connected with the bottom end of the curved part A301, and the bottom end of the curved part B302 is fixedly connected with a connecting part 303 for connection, and the connecting part 303 is fixedly connected with the end of the needle rod 1.

[0024] The working principle and use process of the present application are as follows: Figures 1-3 After the improved type of flat machine knitting needle is assembled, the operator installs the improved type of flat machine knitting needle in the needle groove of the flat machine (the functions and structures of the flat machine and other conventional equipment are well known in the art, and the connection setting is also well known, so no further description is given here, and the flat machine is not shown in the drawings), the purpose is to make the yarn quickly and accurately enter the opening where the needle hook 3 and the needle tongue 2 lap and extend under the action of the oblique surface 4, so that the probability of the yarn being aligned with the needle receiving position is accurately controlled, the problem of missing stitches caused by the yarn sliding through the needle receiving position is solved, the effect of knitting the yarn into a loop is greatly improved, the quality of the knitted fabric is accurately controlled, and the improved type of flat machine knitting needle is suitable for mass production of knitted fabrics.

[0025] When the knitting needs to knit the loop, the operator needs to select the appropriate needle plate according to the required density of the knitting, and then place several knitting needles in the needle slot of the selected needle plate. Then, according to the length of the knitting, the required knitting needles are adjusted out. Then, the yarn is moved to the bevel 4 by the knitting machine, and the yarn is slid into the needle slot 5 by the contact area of the bevel 4 and the needle tongue 2 is opened at the same time. At this time, the yarn enters the groove of the needle hook 3 under the opening of the needle tongue 2, and then the yarn in the groove is knitted into a loop by the knitting machine. In turn, the operation is repeated to complete the knitting of the product, and finally the knitted fabric is formed. Example 2:

[0026] Please refer to Figures 1-2 and Figure 4 , the structure and use method of the improved flat knitting machine needle of the embodiment are consistent with those of example 1, only the angle of the bevel 4 is different, that is, the bevel 4 is arranged at the upper curved part of the needle hook 3 at an angle of 35 degrees relative to the top curved part of the needle hook 3 and is located at the opening where the needle hook 3 and the needle tongue 2 overlap and extend. The 35-degree bevel 4 can increase the contact area between the yarn and the needle hook 3, making it easier for the yarn to align with the needle position. The probability of yarn aligning with the needle position is 99.7%, and the thickness of the needle hook 3 with the bevel 4 at this angle is reduced by 5% compared to the original needle hook 3. Example 3:

[0027] Please refer to Figures 1-2 and Figure 5 , the structure and use method of the improved flat knitting machine needle of the embodiment are consistent with those of example 1, only the angle of the bevel 4 is different, that is, the bevel 4 is arranged at the upper curved part of the needle hook 3 at an angle of 40 degrees relative to the top curved part of the needle hook 3 and is located at the opening where the needle hook 3 and the needle tongue 2 overlap and extend. The 40-degree bevel 4 can increase the contact area between the yarn and the needle hook 3, making it easier for the yarn to align with the needle position. The probability of yarn aligning with the needle position is 99.9%, and the thickness of the needle hook 3 with the bevel 4 at this angle is reduced by 10% compared to the original needle hook 3.

[0028] The data comparison table of the yarn alignment probability of the needle position of example 1 to example 3 is as follows:

[0029] ;

[0030] From the above table, the angle of the bevel 4 relative to the top of the needle hook 3 bending place will directly affect the probability of yarn alignment with the needle position, when the angle of the bevel 4 relative to the top of the needle hook 3 bending place reaches 40 degrees, although it can ensure the probability of yarn alignment with the needle position, but the thickness of the needle hook is greatly reduced, which is easy to cause the needle hook to break in the knitting process, seriously affecting the stability of the knitting needle knitting, when the angle of the bevel 4 relative to the top of the needle hook 3 bending place is 35 degrees, it can not only ensure the probability of yarn alignment with the needle position, effectively avoid the problem of missing needle caused by yarn sliding through the needle position, but also ensure that the thickness reduction rate of the needle hook is smaller, effectively improve the stability of the knitting needle knitting, make the yarn knitting into the best effect of the loop, so that the quality of the knitted fabric is precisely controlled, and it is suitable for mass production of knitted fabric.

Claims

1. An improved flat knitting needle, comprising a needle bar, a needle latch rotating at the head of the needle bar, and a needle hook fixed to the end of the needle bar and overlapping with the needle latch, characterized in that, The outer curved surface of the needle hook has an elliptical oblique surface. The oblique surface is set at an angle of 30 to 40 degrees relative to the top curvature of the needle hook and is located at the opening where the needle hook and the needle tongue overlap and extend. The oblique surface is set on the upper curved part A of the needle hook. The top end of the curved part A overlaps with the end of the needle tongue. The bottom end of the curved part A is fixedly connected to the curved part B set at the lower part of the needle hook. The radius of curvature of the curved part B is greater than the radius of curvature of the curved part A. One end of the needle tongue overlaps with the top end of the curved part A and extends to form a needle receiving groove with the curved surface and oblique surface of the curved part A. The upper end of the needle receiving groove is the lower side wall of the needle tongue, and the lower end of the needle receiving groove is the needle receiving wall composed of the curved surface and oblique surface of the curved part A.

2. The improved flat knitting needle according to claim 1, characterized in that, The top end of the bent portion B is fixedly connected to the bottom end of the bent portion A, and a connecting portion is fixedly provided at the bottom end of the bent portion B, which is fixedly connected to the end of the needle bar.

3. An improved flat knitting needle according to claim 1, characterized in that, The other end of the needle tongue has a pin that passes through it and rotates to the head of the needle bar.

4. An improved method for using a flat knitting machine needle, characterized in that, The specific steps for knitting yarn using an improved flat knitting machine needle as described in any one of claims 1-3 are as follows: First, the yarn is moved to the oblique surface by the knitting machine; second, the yarn is slid into the needle groove and the needle latch is opened by using the contact area of ​​the oblique surface; then, the yarn enters the groove of the needle hook after the needle latch is opened; finally, the yarn in the groove is knitted into a loop by the knitting machine.

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