Slot shaping appts.

A forming device and annular groove technology, applied in the direction of groove needles, metal processing equipment, manufacturing tools, etc., can solve the problem of unstable extrusion force of the metal tube 90, poor engagement, and friction between the metal tube 90 and the pressing roller 82 Problems such as resistance cannot be completely eliminated
CN1519067AInactive Publication Date: 2004-08-11川口工业株式会社
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
川口工业株式会社
Publication Date
2004-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

Provided is a groove forming apparatus with which an annular groove having high accuracy of shape is formed on a metallic pipe. This groove forming apparatus is provided with a supporting roller 10 having an annular concave groove 12a formed along the peripheral direction on the outer peripheral surface, a driving motor 20 for rotating the supporting roller 10 around the axial center, a press roller 30 which is provided with an annular projected line part 31b formed along the peripheral direction on the outer peripheral surface and elevating and lowering mechanisms 25, 35, 38 for vertically elevating and lowering the press roller 30 and constituted so that the annular groove 91 is formed on the outer peripheral surface in the end part by clamping and pressing the metallic pipe 90 with the press roller 30 and the supporting roller 10. The press roller 30 is arranged in a position where is offset on the opposite side to the rotating direction of the supporting roller 10 on the basis of a vertical plane including the axial line of the supporting roller 10.
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Description

technical field

[0001] The present invention relates to a groove forming device for forming an annular groove for engaging the coupler on the metal pipes when two metal pipes facing each other are connected by a coupler. Background technique

[0002] When connecting two metal pipes facing each other, in the past, such as Figure 5 and Figure 6 couplers shown. This coupler 100 is composed of: an annular sealing member 101 that is inserted into a metal pipe 90 from both sides, and an annular groove 91 that accommodates the sealing member 101 and is engaged with and connected to each metal pipe 90 . An annular coupler body 102 is formed. and also, Figure 5 is a perspective view showing the general structure of the coupler, and Figure 6 is its cross-sectional view.

[0003] The aforementioned coupler body 102 is composed of three members, the first member 105, the second member 106, and the third member 107. The fixing pin 109 joins the end portion of the first member 10...

Claims

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