Manufacturing method of circular knitting machine needle plate assembly

Abstract

The invention discloses a method for manufacturing a needle plate assembly of a circular knitting machine. The needle plate assembly consists of a needle bed body (needle cylinder / needle disk / singer ring) and more than one insertion piece, mainly Through the improved design of the composition reference plane, the subsequent processing procedures such as precision and size grinding, deburring and polishing after the combination are omitted, and the combination precision is achieved while reducing the resistance wear of the knitting needle and extending the length of the knitting needle. And the service life of the needle board, and increase the speed of machine knitting, that is, increase productivity.

Description

technical field [0001] The invention relates to a manufacturing method of a needle plate assembly of a circular knitting machine. More specifically, it is a method for manufacturing a needle plate assembly of a circular knitting machine. The invention relates to a manufacturing method of a needle plate assembly of a circular knitting machine which reduces resistance wear between the knitting needle and the needle plate assembly. Background technique [0002] According to the Taiwan Invention Patent Publication No. TW200806836 previously proposed by the inventor of this case, the circular knitting machine is a machine tool widely used in the mass production of knitted fabrics, and the existing circular knitting machines are especially fine needle knitting machines with a large number of needles. , because of the large number of guide needle grooves (hereinafter referred to as needle grooves) set on needle beds such as needle cylinders, needle discs, and Shengke rings (hereina...

AI Technical Summary

Problems solved by technology

[0006] However, both sides of the surface of the insertion piece 2a are ground, causing the original rounded state of the insertion piece 2a to form a right-angled state 22a, which will cause certain wear and tear to the knitting needles when the loom is running; Complete or uniform removal will cause high-speed moving components such as knitting needles and raw grams to cause tight needles, needle jams and even damage to the needle plate during the knitting operation. Defects such as strip defects, hooked yarn forks, breaks or fluffing will seriously reduce product quality, and will also cause high wear and tear on related components, reducing the service life of the machine, and even causing component damage and machine failure.

However, the existing post-processing in the industry often takes a lot of time and manpower, especially to completely or evenly remove the burrs.

[0007] Specifically, after the needle bed body 1a is heat-treated, the parallelism between the first point A and the second point B will be changed from the original machining tolerance (within about 0.01 mm) due to heat treatment errors and different thickness specifications of the needle bed body 1a. The deformation is enlarged to 0.1mm or even more than 0.35mm. Therefore, the bottom of the needle plate groove 19a that is milled groove by groove by the milling machine is also relatively deformed, and it is also subject to the combined tolerance of the insert height H2 and the corresponding part 231a of the insert. Method After the combination of the needle plate is completed, the parallelism between the third point A2 and the fourth point B2 of the insert piece 2a is also 0.15mm, or even more than 0.5mm, exceeding the specification standard (required that the parallelism must be within 0.03mm).

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