45-degree corner cutting and punching mould for doorframe semi-finished product

A semi-finished and corner-cutting technology, applied in the field of punching dies, can solve the problems of semi-finished door frame deformation, affecting the quality of door frame products, time-consuming and labor-intensive problems, and achieve the effects of cost reduction, less burrs, and simple process

Active Publication Date: 2011-07-27
ZHUMADIAN ZHAYASHAN DOOR IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the existing corner cutting die, the lower end of the punch is in a straight line shape. During punching, the semi-finished door frame with a curved cross section will be deformed, and trimming is requi

Method used

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  • 45-degree corner cutting and punching mould for doorframe semi-finished product
  • 45-degree corner cutting and punching mould for doorframe semi-finished product
  • 45-degree corner cutting and punching mould for doorframe semi-finished product

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[0023] The present invention will be further described below in conjunction with the drawings:

[0024] Such as figure 1 - Picture 9 As shown, a 45-degree cutting angle punching die for semi-finished door frame includes a convex die 1 and a concave die 2 corresponding to the convex die 1, wherein the lower end of the convex die 1 is provided with a 45-degree cutting angle upper edge 3 , The upper end of the concave mold 2 is provided with a 45-degree cut-angle lower cutting edge 4 that matches the shape of the 45-degree cut-angle upper cutting edge 3, and the upper surface of the 45-degree cut angle lower cutting edge 4 is semi-finished with the door frame 13 A curve shape with the same cross-sectional shape, the lower surface of the upper cutting edge 3 of the 45 degree cutting angle is in a segmented progressive shearing curve shape, and the upper cutting edge 3 of the 45 degree cutting angle corresponds to the 45 degree cutting angle The lower cutting edge 4 is provided with...

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Abstract

The invention provides a 45-degree corner cutting and punching mould for a doorframe semi-finished product, comprising a male mould and a female mould, wherein a 45-degree corner cutting upper cutting edge is arranged at the lower end of the male mould, a 45-degree corner cutting lower cutting edge is arranged on the upper end of the female mould, wherein the shape of the 45-degree corner cutting lower cutting edge is coincident with that of the 45-degree corner cutting upper cutting edge, the upper surface of the 45-degree corner cutting lower cutting edge is in a curve shape coincident with the cross-section shape of the doorframe semi-finished product, the lower surface of the 45-degree corner cutting upper cutting edge is in a sectional incremental shear curve shape, and the 45-degree corner cutting upper cutting edge is arranged corresponding to the 45-degree corner cutting lower cutting edge, and forms a sectional incremental shear structure for the doorframe semi-finished product with the 45-degree corner cutting lower cutting edge. The 45-degree corner cutting punching mould for the doorframe semi-finished product has the beneficial effects that: the lower surface of the 45-degree corner cutting upper cutting edge is in the sectional incremental shear curve shape, and forms the sectional incremental shear structure for the doorframe semi-finished product with the 45-degree corner cutting lower cutting edge, therefore, the punched doorframe cannot generate edge deformation, has little burrs, dispenses with secondary processing and is orderly and attractive.

Description

technical field [0001] The invention relates to a blanking die, in particular to a 45-degree angle-cutting blanking die for a door frame semi-finished product. Background technique [0002] The door frame includes two side frames and an upper frame. When the two side frames and the upper frame are connected, a 45-degree cut angle is required at the joint of the door frame to make the connection between the side frame and the upper frame more smooth and beautiful; usually , the forming steps of the door frame are as follows: After the metal plate conforming to the specification is preliminarily formed by rolling and rolling, the semi-finished door frame is obtained, and then the semi-finished door frame is cut at 45 degrees. Get the finished door frame. [0003] In the existing corner cutting die, the lower end of the punch is in a straight line shape. During punching, the semi-finished door frame with a curved cross section will be deformed, and trimming is required after t...

Claims

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Application Information

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IPC IPC(8): B21D28/14
Inventor 翟春崔书敬
Owner ZHUMADIAN ZHAYASHAN DOOR IND
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