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Double-floating elastic fixed dummy block

An elastic fixing and squeezing pad technology, applied in the direction of metal extrusion, indenter/punch, metal processing equipment, etc., can solve the problem of uneven radial elastic expansion and contraction, so as to improve maintenance efficiency and reduce maintenance costs , the effect of improving the service life

Pending Publication Date: 2017-10-20
JIANGSU ASIA PACIFIC LIGHT ALLOY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to provide a double-floating elastic fixed extrusion pad used in the extrusion process of aluminum alloys, which solves the shortcomings of the traditional fixed extrusion pads that cannot uniform radial elastic expansion and contraction, and improves Its efficiency and service life

Method used

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  • Double-floating elastic fixed dummy block

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] A double floating elastic fixed squeeze pad, the structure of which is as figure 1 As shown, it includes an extrusion pad body 1, a front-end core pad 2 and a rear-end connection pad 3, and the front-end core pad 2 and the rear-end connection pad 3 are respectively connected to the extrusion pad body 1; wherein the front-end core pad 2 is squeezed with the extruder The die cylinder is matched, and the back-end connection pad 3 is threadedly connected with the extruder shaft.

[0027] The front end core pad 2 is a stepped structure with a thick front and a thin rear, such as figure 1 As shown, the side wall of the front thick core column of the front core pad is set as a conical surface, and the angle of the cone surface is 30°-60°, which is used to limit the radial elastic expansion. There will be a humidity gap between the s...

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PUM

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Abstract

The invention discloses a double-floating elastic fixed dummy block. The double-floating elastic fixed dummy block comprises a dummy block body, a front core pad matched with an extrusion die cylinder of an extruder and a rear connecting pad in threaded connection with an extruder shaft. The dummy block body is assembled to the rear portion of the front core pad. The portion, connected with the front portion of the front core pad, of the dummy block body is coaxially provided with an annular groove. A spring is embedded in the annular groove, one end of the spring is connected with the bottom of the groove, and the other end of the spring is connected with the front core pad. A floating gap is axially formed in the portion, assembled to the inner end of the rear connecting pad, of the dummy block body. Effective elastic expansion and shrinkage of the fixed dummy block are realized through double floating of the spring and the clamping groove. The situations that the fixing extrusion pad body gets stuck with the front core pad and scrapes the die cylinder due to the fact that the dummy block body cannot conduct uniform radial elastic expansion and shrinkage are avoided. The service life of the dummy block is prolonged.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy pipe processing, in particular to a double-floating elastic fixed extrusion pad used in the aluminum alloy extrusion process. Background technique [0002] The production of aluminum alloy pipes is formed after batching, smelting, casting, and extrusion. When the aluminum alloy is hot extruded, it is necessary to place an extrusion pad on the extrusion shaft and the aluminum alloy billet to be extruded. During the extrusion process, the extrusion One side of the pad is in contact with the extrusion shaft of the extrusion machine, and the other side is in contact with the high-temperature aluminum alloy billet, so as to avoid direct contact between the extrusion shaft and the aluminum alloy billet, and prevent the extrusion shaft from sticking to the aluminum clad shaft. [0003] Extrusion pads used at present are divided into movable extrusion pads and fixed extrusion pads according to thei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C26/00B21C23/08
CPCB21C23/085B21C26/00
Inventor 王庆庆许杏明钱庆
Owner JIANGSU ASIA PACIFIC LIGHT ALLOY TECH CO LTD