A Die for Extrusion Forming of In-plane Bending Plates of Equal Thickness

A technology of extrusion molding and internal bending, which is applied in the direction of metal extrusion dies, etc., can solve the problems of thinning the outer ring, easy wrinkling of the inner ring, and shortening the service life of the in-plane bending plate.

Active Publication Date: 2019-11-08
河南合力盛达铝业科技发展有限公司
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Problems solved by technology

[0008] In order to solve the thinning of the outer ring and the easy wrinkling of the inner ring of the equal-thickness in-plane bending plate produced in the production of the existing in-plane bending plate, it is necessary to carry out secondary processing and trimming of the thickness dimension, and it is easy to produce deformation in the bending direction. Springback in the opposite direction shortens the service life of the in-plane curved plate. The present invention provides a mold for extrusion molding of the in-plane curved plate of equal thickness

Method used

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  • A Die for Extrusion Forming of In-plane Bending Plates of Equal Thickness

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specific Embodiment approach

[0061] Referring to the accompanying drawings, the specific implementation is as follows:

[0062] The invention provides a mold for extrusion molding of inner curved plates of equal thickness. The mold is connected and installed with the existing extruder and used in conjunction with the cuboid extrusion rod 1 of the extruder. The extrusion direction of the extrusion rod 1 runs through the provided inner cavity, so that the blank whose original shape is a cuboid is extruded from the inner cavity of the mold by the extrusion rod 1 and extruded into an inner curved plate of equal thickness;

[0063] The extrusion machine adopts a 500T horizontal extrusion machine. The length of the extrusion rod 1 is 450mm. 220mm, the cross-sectional size of the blank on a plane perpendicular to the extrusion direction of the extrusion rod 1 is 69mm×49mm, and 6063 aluminum alloy is selected as the material of the blank;

[0064] The mold is divided into three sections, including the extrusion ...

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Abstract

A mold for extrusion molding of inner curved plates of equal thickness. The mold is connected and installed with an extruder, and includes an extrusion cylinder liner, an adjusting mold and a forming mold connected in sequence. The inner cavity set through the extrusion direction, including the rectangular cavity in the inner lining of the extrusion cylinder for the extrusion rod to push the blank, and the blank in the forming die for pushing the extruded rod out of the mold cavity The forming hole that is extruded into a flat plate, located in the adjusting die, is used to cooperate with the extrusion action of the extrusion rod to change and adjust the shape of the billet so that the billet becomes the required equal-thickness in-plane bending when it is extruded from the forming hole Shaped cavity of the plate. The invention can extrude inner curved plates of equal thickness with different curvatures, and can ensure the thickness of the in-plane curved plates without thinning of the outer ring and easy wrinkling of the inner ring. There will be no reaction force opposite to the bending direction, and there will be no rebound in the opposite direction to the bending direction.

Description

technical field [0001] The invention relates to the field of manufacturing and forming of inner curved plates of equal thickness, in particular to a mold for extrusion molding of inner curved plates of equal thickness. Background technique [0002] The equal-thickness curved plate refers to the equal-thickness flat plate with a certain curvature radius and curved shape in the plane. It is a structural material that can be used for conveyors and aero-engine blades. It is used in powder processing, aviation and aerospace technologies. The field has broad application prospects. In the prior art, the earliest method of processing in-plane curved plates of equal thickness is to cut the large flat plate according to the arc profile of the in-plane curved plate, and then process and trim the cut arc-shaped plate in terms of thickness. This method will Cause a large amount of waste of plate raw material, basically no longer used. At present, the most common method of producing in-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C25/02
CPCB21C25/02
Inventor 石磊彭琦安俊超柳翊曹永青方世杰金文中张立峰徐国辉郭玉波沈俊芳王雷贾平张伟崔琦李豪陈程阳刘爽胡兵琪李佳昊薛孝云石坤公海波张虎威王笑朋
Owner 河南合力盛达铝业科技发展有限公司
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