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Rolling hexagonal cold-drawing cover die

A rolling die and cold drawing technology, applied in the direction of wire drawing dies, etc., can solve the problems of high price, time and energy waste of cemented carbide cold drawing dies, and achieve the effect of shortening the production cycle, reducing the use of acid, and less investment in molds

Inactive Publication Date: 2011-02-02
宋国锋
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It takes 3-4 days for one annealing and one drawing, so it is a waste of time and energy, and the price of hard alloy cold drawing dies is also quite expensive

Method used

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  • Rolling hexagonal cold-drawing cover die
  • Rolling hexagonal cold-drawing cover die
  • Rolling hexagonal cold-drawing cover die

Examples

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Embodiment Construction

[0024] Such as figure 1 , 2 , 3, and 4, the rolling hexagonal cold-drawing die includes a mold base plate 1, a feeding hole 6 and six rolling grooves 11 are set on the mold base plate 1, and the six rolling grooves 11 are evenly distributed on the sides of the feeding hole 6 peripheral. The mold body 2 is fixed on the mold bottom plate 1, and six mold rolling seat grooves 4 are evenly distributed on the mold body 2 along the circumferential direction, and each rolling mold seat groove 4 is respectively arranged above the corresponding rolling mold groove 11.

[0025] Rectangular rolling die seats 3 with one end open are respectively arranged in each die rolling seat groove 4 , and the opening direction of each die rolling seat 3 faces the feeding hole 6 respectively. Each rolling die seat 3 is composed of two transverse sections 3-1 and a longitudinal section 3-2 respectively, the two ends of the longitudinal section 3-2 are respectively fixed to the transverse section 3-1, ...

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Abstract

The invention discloses a rolling hexagonal cold-drawing cover die, relating to the field of the structure of dies. The rolling hexagonal cold-drawing cover die comprises a die base plate which is provided with a feeding hole and six rolling die cavities and is fixedly provided with a die body, the die body is uniformly distributed with six rolling die holder grooves, each rolling die holder groove is internally provided with a rectangular rolling die holder respectively, each rolling die holder respectively comprises two transverse sections and a longitudinal section, and the two transverse sections are respectively provided with a first rolling die shaft hole; a rolling die is arranged between the two transverse sections in each rolling die holder, a second rolling die shaft hole is arranged in the center of each rolling die, wherein a rolling die shaft penetrates through the two first rolling die shaft holes and the second rolling die shaft hole, and a bearing is arranged between each rolling die and each rolling die shaft; and six adjusting screw holes are arranged on the periphery of the die body and are internally provided with an adjusting screw respectively, the inner end of each adjusting screw is respectively used for fixing the longitudinal section of the corresponding rolling die holder, the outer end of each adjusting screw rod is respectively connected with a nut, and each nut is respectively arranged outside the die body. The invention has the advantages of low cost, environmental protection, simple process and shortened production cycle.

Description

technical field [0001] The invention relates to the structural field of a mold, in particular to a mold structure for cold-drawing hexagonal steel bars. Background technique [0002] The existing mold for cold drawing hexagonal steel is a cemented carbide cold drawing mold, and the process of cold drawing hexagonal steel with this mold can be divided into the following steps: [0003] 1. Put the billet purchased from the hot rolling mill into the electric furnace or gas furnace for annealing. [0004] 2. The raw materials are pickled with hydrochloric acid or shot blasting to remove the oxide layer. [0005] 3. Phosphating treatment is carried out on the pickling or shot blasting material to form a phosphating layer on the surface of the blank to avoid damage to the cemented carbide mold. The cold draw is over. [0006] It takes 3-4 days for one annealing and one drawing, so it is a waste of time and energy, and the price of hard alloy cold drawing dies is also quite expe...

Claims

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Application Information

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IPC IPC(8): B21C3/08B21C3/12
Inventor 宋国锋
Owner 宋国锋
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