90-degree flanging pipe expander

A tube expander and flanging technology, which is applied in the field of tube expanders, can solve the problems that the degree of expansion of the tube opening cannot be reached.

Inactive Publication Date: 2011-06-22
SUZHOU TIANXUN MACHINERY TOOL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the tube expanders used for expansion joints on the market are all placed horizontally and vertically in the expansion shell, and the expansion shell is provided with a trapezoidal groove, and the expanded nozzles are all in the shape of a trumpet. , can not meet the requirements of exceeding a certain degree of nozzle expansion

Method used

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  • 90-degree flanging pipe expander
  • 90-degree flanging pipe expander
  • 90-degree flanging pipe expander

Examples

Experimental program
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Embodiment Construction

[0012] figure 1 A 90-degree flanging tube expander is shown, including an expansion shell 1, an expansion bead 2 installed inside the expansion shell 1, and an expansion rod 3 passing through the expansion shell 1, which is connected with the expansion bead 2 in the middle of the expansion shell 1 There is a bead 4 at the position, and the bead 4 is connected to the expansion shell 1 by a fixing bracket 5 through a nut. The fixing bracket 5 can prevent the bead 4 from being deformed and dislocated due to the extrusion force.

[0013] figure 2 The shape of the shown bead 4 is concave in the middle, and the edge of the nozzle will be bent to the edge along the concave track of the bead 4, so that the nozzle can be expanded into an arc of 90 degrees.

[0014] When expanding the inner and outer diameters of the pipe, push the expansion rod 3, drive the expansion bead 2, and screw into the expansion shell 1. When the edge of the pipe reaches the bead, the fixed bracket 5 can prev...

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PUM

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Abstract

The invention relates to a 90-degree flanging pipe expander, which comprises an expanding shell, an expanding bead arranged in the expanding shell and an expanding rod passing through the expanding shell, wherein the position of the middle of the expanding shell engaged with the expanding bead is provided with an edge pressing bead, the edge pressing bead is connected on the expanding shell by using a fixed bracket through nuts, and the edge pressing bead is in a shape that the middle is sunken. When the inside or outside diameter of a pipe is expanded, the expanding rod is propelled to drive the expanding bead to be screwed into the expanding shell; and when the edge port of the pipe reaches the edge pressing bead, because the middle of the edge pressing bead is sunken, the pipe orifice edge is bent to the edge along the sunken locus of the edge pressing bead, and then the pipe orifice can be expanded with 90 radians.

Description

technical field [0001] The invention relates to a tube expander, in particular to a 90-degree flanging tube expander capable of expanding the tube mouth into a 90-degree arc of outward flanging. Background technique [0002] The tube expander is used to expand the inner and outer diameters of the tubes in the manufacture and maintenance of various containers. It is a kind of expansion tool that is tightly combined with the contact parts of the tube and the tube sheet, will not leak water or air, and can withstand a certain pressure. At present, the tube expanders used for expansion joints on the market are all placed horizontally and vertically in the expansion shell, and the expansion shell is provided with a trapezoidal groove, and the expanded nozzles are all in the shape of a trumpet. , can not meet the requirements of more than a certain degree of nozzle expansion. Contents of the invention [0003] The technical problem to be solved by the present invention is to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D39/12
Inventor 张国荣
Owner SUZHOU TIANXUN MACHINERY TOOL TECH
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