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CN-118461215-B - Main needle structure of knitting machine compound needle

CN118461215BCN 118461215 BCN118461215 BCN 118461215BCN-118461215-B

Abstract

The invention relates to the field of knitting machines, in particular to a main needle structure of a compound needle of a knitting machine, which comprises a needle hook and a main needle rod, wherein the needle hook is arranged at the end part of the main needle rod, a needle groove is formed in the end surface of the main needle rod corresponding to the hook tip part of the needle hook, the part of the main needle rod provided with the needle groove is a needle groove part, one end of the needle groove part is connected with the needle hook, the other end of the needle groove part is connected with a solid part, a limit rod is arranged at the solid part and has elastic deformation capability, a limit bulge is arranged at the end part of the limit rod, which is close to one side of the needle groove part, and can clamp and position a latch needle of the compound needle, an avoidance groove is formed in the groove bottom of the needle groove, the avoidance groove is of a through groove structure, a guide inclined plane is arranged at one side of the needle groove, which is close to the needle hook tip part, and the inclined direction of the guide inclined plane is inclined from the avoidance groove to the direction of the hook tip part. Through the technical scheme, the main needle structure of the compound needle is improved, and the processing difficulty is reduced, so that the aims of reducing cost and enhancing efficiency are fulfilled.

Inventors

  • LAN SHANBING

Assignees

  • 浙江睿丰智能科技有限公司

Dates

Publication Date
20260512
Application Date
20240514

Claims (10)

  1. 1. The main needle structure of the compound needle of the knitting machine comprises a needle hook and a main needle bar, wherein the needle hook is arranged at the end part of the main needle bar, and a needle groove is formed in the end surface of the main needle bar corresponding to the hook tip part of the needle hook, and the structure is characterized in that: The part of the main needle bar provided with the needle groove is a needle groove part, one end of the needle groove part is connected with the needle hook, the other end of the needle groove part is connected with a solid part, and the solid part is provided with a limit rod which has elastic deformation capability; the bottom of the needle groove is also provided with an avoidance groove which is a through groove structure, one side of the needle groove, which is close to the needle hook, is provided with a guide inclined plane, and the inclined direction of the guide inclined plane is inclined from the avoidance groove to the direction of the hook tip.
  2. 2. The main needle structure of the knitting machine composite needle according to claim 1, characterized in that: the avoidance groove is internally provided with a reinforcing piece, and the reinforcement piece enables the avoidance groove to be arranged at intervals in the length direction of the main needle bar.
  3. 3. The main needle structure of the knitting machine composite needle according to claim 2, characterized in that: the reinforcement is an arc-shaped groove bottom which divides the avoidance groove into two parts.
  4. 4. The main needle structure of the knitting machine composite needle according to claim 1, characterized in that: when the compound needle is in a reset state, the avoidance groove can lead the latch needle of the compound needle to be leveled with the bottom of the main needle rod; When the compound needle is in a working state, the guide inclined plane can guide the latch needle of the compound needle to slide to the hook tip part, the latch needle can be separated by the hook tip part, and in the process, a space for storing yarns is reserved between the needle hook and the latch needle all the time.
  5. 5. The main needle structure of the knitting machine composite needle according to claim 1, characterized in that: The avoiding groove is a rectangular hole, an elliptic hole or a strip-shaped hole.
  6. 6. The main needle structure of the knitting machine composite needle according to claim 1, characterized in that: The needle groove wall of the needle groove far away from one end of the needle hook is provided with a convex arc edge.
  7. 7. The main needle structure of the knitting machine composite needle according to claim 1, characterized in that: The length of the limiting rod is more than or equal to 5mm.
  8. 8. The main needle structure of the knitting machine composite needle according to claim 1, characterized in that: The two sides of the needle hook are gradually folded at the hook tip part.
  9. 9. The main needle structure of the knitting machine composite needle according to claim 1, characterized in that: The inclination angle of the guiding inclined plane relative to the groove bottom is 15-35 degrees.
  10. 10. The main needle structure of the knitting machine composite needle according to claim 1, characterized in that: a concave positioning arc is arranged below the limiting protrusion.

Description

Main needle structure of knitting machine compound needle Technical Field The invention relates to the field of knitting machines, in particular to a main needle structure of a knitting machine compound needle. Background The knitting machine is a knitting machine mainly used for transverse knitting, and the yarns are knitted into knitted fabrics by controlling the lifting movement of the knitting needles. At present, the use of compound needles on knitting machines is becoming more and more common, the appointed action is completed through the mutual matching of each component part in the compound needles, and the compound needles generally comprise a main needle with a needle hook and a latch needle which is matched with the main needle and yarns to complete the actions of looping, looming, gathering, backing and the like. The latch needle can be arranged in the needle groove of the main needle and can move relatively, and the end part of the latch needle is provided with two needle sheets which can be separated by the needle hook of the main needle in the moving process relative to the main needle. As shown in fig. 5 of TW528822B, the main needle is provided with a needle groove, in which a spacer is provided, and two needle pieces of the latch needle are respectively provided in the left and right needle grooves of the spacer. However, the structure is extremely difficult to process, the thickness of the whole composite needle is relatively thin, two uniform needle grooves are required to be milled on the metal material with the thickness, the whole main needle can be reported to be wasted by a little careless, and when the tongue needle moves, the resistance to the tongue needle is relatively large, and the tongue needle needs to be pushed by enough power, so that the butt of the tongue needle is subjected to a larger burden, and the tongue needle is easy to damage. Therefore, the inventor further research and develop a main needle structure of a compound needle of a knitting machine, and the scheme is generated. Disclosure of Invention The invention aims to provide a main needle structure of a knitting machine compound needle, which reduces the processing difficulty and realizes the purposes of cost reduction and efficiency improvement. In order to achieve the above object, the technical scheme of the present invention is as follows: the main needle structure of the compound needle of the knitting machine comprises a needle hook and a main needle bar, wherein the needle hook is arranged at the end part of the main needle bar, and a needle groove is formed on the end surface of the main needle bar corresponding to the hook tip part of the needle hook; The part of the main needle bar provided with the needle groove is a needle groove part, one end of the needle groove part is connected with the needle hook, the other end of the needle groove part is connected with a solid part, and the solid part is provided with a limit rod which has elastic deformation capability; the bottom of the needle groove is also provided with an avoidance groove which is a through groove structure, one side of the needle groove, which is close to the needle hook, is provided with a guide inclined plane, and the inclined direction of the guide inclined plane is inclined from the avoidance groove to the direction of the hook tip. The tongue needle is characterized in that the groove bottom part of the needle groove is opened to form an avoidance groove, so that the needle groove is easy to mill during processing, the tongue needle is allowed to be close to and flush with the groove bottom of the needle groove when moving in the needle groove, the tongue needle is smaller in resistance, and compared with the condition with the groove bottom, the tongue needle can be designed to be wider and higher in structural strength, the tongue needle is not easy to damage during operation (the whole width of the composite needle is limited due to the structural limitation of the composite needle, and the design space is limited), the limit protrusion can realize the pressing and positioning of the tongue needle, and when the tongue needle is in a reset state (non-moving state), the tongue needle is always pressed and stabilized in the needle groove and is not influenced by vibration during machine operation so as to be separated from the needle groove. Further, when the composite needle is in a reset state, the avoidance groove can enable the latch needle of the composite needle to be leveled with the bottom of the main needle rod; When the compound needle is in a working state, the guide inclined plane can guide the latch needle of the compound needle to slide to the hook tip part, the latch needle can be separated by the hook tip part, and in the process, a space for storing yarns is reserved between the needle hook and the latch needle all the time. The reset state refers to a state that the latch needle is in a needle groove and does not