High-efficiency porous silencing plate punching die

Abstract

The invention discloses a high-efficiency porous silencing plate punching die, and belongs to the technical field of dies. The high-efficiency porous silencing plate punching die comprises an upper die holder, an upper base plate, an upper clamping plate, a stop plate, a stripper plate, a lower die frame, a plurality of groups of insert blocks, a lower base plate and a lower die holder, a plurality of groups of hanging table parts are arranged above the upper clamping plate at intervals, and each group of hanging table parts is provided with at least two rows of hanging tables, the two adjacent rows of hanging tables are staggered, punching needles are movably hung in the hanging tables, the lower die frame is arranged above the lower base plate, the insert blocks are movably embedded in the lower die frame, a plurality of groups of stamping knife parts are arranged on the insert blocks at intervals, each group of stamping knife part is provided with at least two rows of stamping knifeedges, and two adjacent rows of the stamping knife edges are staggered. By arranging a plurality of groups of punching needle groups which are arranged at intervals, the punching frequency is reducedto a fraction of the original punching frequency, due to the fact that the punching needle groups are arranged at intervals and every two adjacent rows of punching needles are staggered, stress of aplate in the punching process is more dispersed and more uniform, and irreversible deformation of the plate caused by stress concentration is avoided.

Description

technical field [0001] The invention relates to the field of die technology, in particular to a high-efficiency punching die for a porous sound-absorbing plate. Background technique [0002] When processing porous sound-absorbing panels, it is necessary to use punching dies to repeatedly punch holes in the panels. Existing punching dies mostly use a single set of punching needles for punching. During the punching process, the sheet needs to be punched in a single row sequentially, which takes a long time and is inefficient. Taking the porous sound-absorbing plate with 112 rows of holes in the horizontal and vertical directions as an example, a single set of 4 rows of punching needles is currently used for punching, which needs to be punched 28 times in sequence. Moreover, in the existing punching die, the punching pins in a single group are arranged too closely to each other. When the sheet is punched, the sheet is prone to irreversible deformation due to concentrated stres...

AI Technical Summary

Problems solved by technology

In addition, in the existing punching die, the punching needles in a single group are arranged too closely to each other. When punching the plate, the plate is prone to irreversible deformation due to concentrated force, which affects product quality.

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