Composite stamping die for inner lid of electric rice cooker

Abstract

The invention discloses a compound type stamping die of an electric cooker inner cover. The compound type stamping die comprises a cylindrical upper die and a cylindrical lower die, the end face of the cylindrical lower die is provided with annular protrusions located on the periphery, a circular groove and a plurality of bosses, the multiple bosses are distributed along the periphery of the end face of the cylindrical lower die at intervals, and two or more blind holes are formed in each boss; and two rows of strip-shaped protrusion sets are arranged in an area, located in the circular groove, of the end face of the cylindrical lower die, and a blade opening is formed in the top of each strip-shaped protrusion. According to the compound type stamping die, two rows of air holes and three sets of screw holes located in the periphery of the electric cooker inner cover can be punched in the electric cooker inner cover at a time, and meanwhile rectangular grooves for strengthening plastic can be further punched, so that the working efficiency for producing the electric cooker inner cover is greatly improved.

Description

technical field [0001] The invention relates to a production equipment for an electric rice cooker, in particular to a stamping die for an inner cover of an electric rice cooker. Background technique [0002] At present, the State Intellectual Property Office published a patent document with a publication number of 1868698 on November 29, 2006, a punching machine, including a push plate connected in sequence, an integral body, a fine blanking plate, a bent plate, and an L-shaped plate. , the overall knife, the punching shaft, the iron ring baffle plate, the handle installed on the punching shaft, the left and right brackets connected with the bending plate, the punching shaft can be rotatably installed on the left and right brackets, the overall knife passes through the gear and the punching shaft connection, the top surface of the L-shaped plate is fixedly connected to the overall knife, the side is connected to the push shaft, the push shaft passes through the bent plate, ...

AI Technical Summary

Problems solved by technology

[0003] In the production process of the inner lid of the rice cooker, the stamping of the screw hole and the vent hole are two separate processes. Therefore, during production, the stamping die for the screw hole and the stamping die for the vent hole need to be designed separately, so not only the production efficiency is low , but also increased production costs

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