Method and device for producing grip ring of pipe joint and grip ring for pipe joint

A technology for manufacturing devices and pipe joints, which is applied in the field of hoops, can solve the problems of decreased effective utilization rate of materials, decreased added value of products, and deterioration of surface properties, and achieves the elimination of winding defects, high effective utilization rate, and good surface properties. Effect

Inactive Publication Date: 2006-01-04
金井宏彰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is also a problem that the effective utilization rate of materials decreases due to the removal of welded parts.
In addition, there are also disadvantages that the added value of the product decreases due to surface oxidation and discoloration due to the influence of welding and stress relief annealing heat treatment, and due to the deterioration of the surface properties.
Therefore the manufacturing method of existing hoop, it is inevitable that manufacturing cost improves
and cannot provide good quality hoops

Method used

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  • Method and device for producing grip ring of pipe joint and grip ring for pipe joint
  • Method and device for producing grip ring of pipe joint and grip ring for pipe joint
  • Method and device for producing grip ring of pipe joint and grip ring for pipe joint

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Embodiment Construction

[0040]Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to the following examples, and can be appropriately modified and implemented.

[0041] exist image 3 Among them, the metal wire 9: it is wound into a coil shape; the cutting device 10 (metal wire manufacturing device for a hoop): it rewinds the coil-shaped metal wire, and performs continuous wedge-shaped groove processing on the metal wire; Processing device 11: It processes the metal wire rod processed into a wedge-shaped groove into a ring shape; Cutting device 12: It cuts the ring-shaped metal wire rod processed into a ring shape into a ring piece of a specified length, which is included in the ring processing device 11 Middle; a cutting device 13 (such as a milling machine), which is used to perform cutting on the two end faces of the ring piece of a predetermined length. The details of cutting processing device 10 are in Fig...

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Abstract

A metal wire material suitable for use as a grip ring material, having good surface properties and produced at low cost; a producing method therefor; and a producing device therefor. For this purpose, a metal wire material (34) is passed through a shape correction unit (14) to have its coil-like winding-produced deformation removed. Further, while preventing the downward or upward turn of the metal wire material (34) by upper and lower hold rollers (19, 20, and 26, 27), a continuous wedge-like groove is formed in the metal wire material (34) by a first cutting roller (21) and a second cutting roller (23).

Description

[0001] The present invention is filed on July 1, 2002 by Hiroaki Kanai, entitled "Metal wire for hoop, method for manufacturing the metal wire for hoop, manufacturing device for metal wire for hoop, and pipe joint using the metal wire." A divisional application of the Chinese patent application No. 02802503.2 of the manufacturing method of the hoop, the manufacturing device of the hoop for the pipe joint, and the hoop for the pipe joint. technical field [0002] The metal wire material of the present invention is a metal wire material for a hoop used for a pipe joint, which is a connecting part for connecting tubular bodies, and particularly relates to a tubular body that does not need to be processed at the end and is prevented from being inserted from both sides. Axis movement. [0003] The present invention relates to a hoop used for a pipe joint, which is a connecting part for connecting tubular bodies whose ends do not need to be processed, and which prevents axial moveme...

Claims

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Application Information

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IPC IPC(8): B23P13/00B23P23/00B21F37/00F16L21/08
Inventor 住本伸
Owner 金井宏彰
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