A hemming press die for a grooved sheet

CN122164811APending Publication Date: 2026-06-09SHANGHAI XINCHI IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI XINCHI IND & TRADE CO LTD
Filing Date
2024-12-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing sheet metal edge-rolling stamping dies make it difficult to remove the sheet metal from the lower module after edge-rolling, resulting in inconvenience in material handling, reduced work efficiency, and unstable edge-rolling position, which is prone to deviation or deformation.

Method used

A stamping die for edge rolling of grooved sheet metal was designed, including an upper die plate, a lower die plate, and a lower backing plate. The die plate is positioned and limited by guide holes and positioning blocks to ensure the accuracy of edge rolling, and the lower backing plate facilitates demolding.

Benefits of technology

It improves the accuracy and efficiency of edge curling of sheet metal, ensures accurate edge curling position, facilitates demolding, improves work efficiency, and avoids edge curling position deviation or deformation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122164811A_ABST
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Abstract

The present application relates to a kind of edge curling punch dies of grooved board, the board is groove type, the die includes upper die plate, lower die plate and lower backing plate;The upper die plate is equipped with the guide hole matched with the outer contour of board, and the board is abutted in guide hole;The lower die plate includes lower die plate body, bending block and positioning block, each side of the lower die plate body is fixed with bending block, and the outer side and the upper end surface of the bending block are equipped with the arc bending part protruding outward between;The positioning block is fixed on the upper end surface of bending block, the lower backing plate is retractably arranged on the side of lower die plate body close to upper die plate, and the board is inverted cover and is arranged on lower backing plate.Compared with prior art, the present application has the advantages of high positioning accuracy of board and high positioning accuracy of coiling board, and convenient demolding, high work efficiency and the like.
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