Production equipment for drawing copper pipe

A technology for producing equipment and copper tubes, which is applied to wire drawing dies, mandrels, etc., can solve problems such as low production efficiency, and achieve the effects of good discharge, convenient feeding, and avoidance of scratches.
CN113290065APending Publication Date: 2021-08-24CHONGQING LONGYU PRECISION COPPER TUBE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING LONGYU PRECISION COPPER TUBE CO LTD
Publication Date
2021-08-24

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Abstract

The invention relates to the technical field of copper pipe drawing, in particular to production equipment for drawing a copper pipe. The production equipment comprises an inner oil coating mechanism, a straightening mechanism, a pre-forming mechanism, a drawing die and a cutting mechanism; the drawing die comprises an outer die and a moving core head, the outer die comprises a die sleeve and a die core, a through hole is axially formed in the die sleeve, the die core is embedded in the through hole, a conical core hole is formed in the die core, the core hole is communicated with the through hole, the cross section of the core hole is cross-shaped, and the core hole is used for being matched with the moving core head; and the moving core head comprises a large-diameter section, a small-diameter section and a transition section, the transition section is smoothly connected between the large-diameter section and the small-diameter section, and the shape of the cross section of the moving core head is the same as that of the cross section of the core hole. The production equipment can solve the problem that an existing drawing manner is low in production efficiency.
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Description

technical field

[0001] The invention relates to the technical field of copper pipe drawing, in particular to production equipment for drawing copper pipes. Background technique

[0002] At present, gas water heaters are equipped with double-eared, cross-shaped and other special-shaped copper tubes to replace ordinary cylindrical copper tubes to improve heat exchange efficiency and speed up the time for hot water to flow out. Special-shaped copper tubes such as double-eared and cross-shaped copper tubes are generally drawn from cylindrical copper tube blanks.

[0003] The special-shaped copper tube drawing die generally includes an outer mold and a core head. In the prior art, the core head generally adopts a fixed core head, inserts a core rod into the core head, and fixes the core head to the core hole of the outer mold through the core rod. The copper tube blank is sleeved outside the core head, passed through the core hole and connected with the stretching machine. When...

Claims

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