RU1808515C - Needle mill - Google Patents

Abstract

Use: for processing metals and other materials by cutting. SUMMARY OF THE INVENTION: An acupuncture is composed of a set of wires whose size in the outer rows exceeds the size of the wires located in the middle rows. A discrete arrangement in the middle rows of wires with a cross section equal to the cross section of wires in the outer rows is provided. 2 ill.

Description

The invention relates to the processing of metals and other materials by cutting, and can also be used for the processing of worn tires.

The purpose of the invention is to increase the reliability of acupuncture.

The application of a needle cutter differs from the known one in that the wires located in the outer rows of the set have a cross section greater than the cross section of the wires located in the middle rows of the set, the wires being discretely placed with a cross section equal to the cross section of the wires in the outer r dah.

In Fig, 1 shows an acupuncture, general view; figure 2 is a view of figure 1.

The needle cutter comprises a housing 1 with a needle set 2 fixed to the beginning with concentric rows. Needle set 2 consists of wires of various cross-sections. The wires 3 located in the outer rows of the set 2. have a cross section greater than the cross section of the wires 4 located in the middle rows of the set. Between the wires 4 of the middle rows of the set, wires 3 are discretely placed with a cross section equal to the cross section of wires 3 in the outer rows.

Acupuncture works as follows.

Rotating from the needle cutter is brought to the material being processed and cutting into it, removes the chip layer. Since the middle layer of the needle set 2 consists of wires 4, the cross section of which is smaller than the wires 3 in the outer rows, it removes small chips, which is necessary, for example, when grinding worn rubber to obtain a rubber powder. The wires 3 with a cross-section equal to the cross-section of the wires in the outer rows, located discretely in the middle layers of the needle set 2, serve to increase the rigidity of the needle mill during operation and do not allow the entire needle to bend

with

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that set to an unacceptable amount, which could cause the needles to fall out of the housing 1, with a significant depth of cut. Due to the fact that the wires 3 in the outer rows of the needle set 2 have a cross section greater than the cross section of the wires 4 located in the middle rows of the set, located at the edges of the needle cutter, they do not have a decisive effect on the fineness of the finished product, the value particles of which is determined by the diameter of the wires 4, but only serve to give the needle set 2 additional rigidity.

Technical appraisal and economic advantages of the claimed acupuncture are increased

improving tool reliability by increasing its rigidity.

Claims (1)

SUMMARY OF THE INVENTION An Iglofreza, on the case of which concentric rows are attached a needle set consisting of wires of various cross-sections, characterized in that, in order to increase the reliability of the needle cutters, the wires located in the outer rows of the set have a cross section greater than the cross section wires located in the middle rows of the set, and in the latter, wires with a cross section equal to the cross section of wires in the outer rows are discretely placed. f Figure 1