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Flexible core of flexible tube terminal mould

A flexible and core head technology, applied in the field of flexible core heads, can solve the problems of wrinkling at the bending part, difficulty in bending thin-walled and small bending radius pipe fittings, and poor ovality of the bent pipe fittings.

Inactive Publication Date: 2009-05-13
长治钢铁(集团)锻压机械制造有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

It is difficult for this complete set of molds to bend thin-walled pipes with small bending radius. In this field, thin-walled pipes refer to relative wall thickness: pipe wall thickness / pipe outer diameter<0.04, and small bending radius means relative bending radius: pipe bending radius / Pipes with an outer diameter of ≤2, when using existing molds to bend small-radius thin-walled pipes, the ellipticity of the bent pipe fittings will be out of tolerance, and the inner side of the bent part will be wrinkled.

Method used

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  • Flexible core of flexible tube terminal mould
  • Flexible core of flexible tube terminal mould
  • Flexible core of flexible tube terminal mould

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Embodiment Construction

[0013] The flexible core of the flexible pipe end mold shown in Figure 1-4 includes a straight core 1 and a universal spherical core 3, the straight core 1 is connected with the universal spherical core 3 through four pressure plates 9, and the straight core 1 A groove 10 adapted to the ball core head 5 of the universal ball core head 3 is provided at the tail of the ball head. The universal ball core head 3 is composed of a ball core head 5, 6 intermediate inner connectors 6, an intermediate outer ring 7 and 6 lower connectors 8, and the structure of the universal ball core head 3 is the ball core head 5 The middle inner connecting body 6 and the lower connecting body 8 are covered by the screw rod at the lower end, and the outer end surface of the middle inner connecting body 6 is covered with the middle outer ring 7; the structure of the ball core head 5 is: the ball core head 5 is a "person" The upper part is a spherical joint, the middle is provided with an inward card sl...

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Abstract

The invention discloses a flexible core stud for a flexible pipe end die, which belongs to the technical field of manufacturing a die for a wound form pipe bending machine. The flexible core comprises a straight core stud and a universal core stud, which are connected via a press plate. The universal core stud is comprising a spherical core stud, a middle internal connector, a middle external ring and a lower connector, wherein the middle internal connector and the lower connector are fitted over the spherical core stud via screws at the lower end of the spherical core stud, and the middle external ring is fitted over the middle internal connector. The flexible core stud can be widely used in dies of various wound form pipe bending machines.

Description

technical field [0001] The flexible core head of the flexible pipe end mold of the invention belongs to the technical field of mold manufacturing for winding pipe bending machines. Background technique [0002] The mold of the pipe bending machine is currently composed of a bending die, a clamping jaw, a follow-up chute or a roller, and a straight core head. It is difficult for this complete set of molds to bend thin-walled pipes with small bending radius. In this field, thin-walled pipes refer to relative wall thickness: pipe wall thickness / pipe outer diameter<0.04, and small bending radius means relative bending radius: pipe bending radius / Pipes with an outer diameter of ≤2, when using existing molds to bend small-radius thin-walled pipes, the ellipticity of the bent pipe fittings will be out of tolerance, and the inner side of the bent part will be wrinkled. Contents of the invention [0003] The invention overcomes the shortcomings of the prior art, and the proble...

Claims

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Application Information

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IPC IPC(8): B21D9/01
Inventor 邢伟荣王敏原加强马丽萍
Owner 长治钢铁(集团)锻压机械制造有限公司
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