A jump-cut stamping process of sheet material

Abstract

The invention provides a jump-cutting stamping process for sheet materials, which has the advantages that the continuous ratio of the tails of the sheet materials is less than 1%, the yield of the product is high and the production cost is reduced. The compounded sheet materials are placed on a bottom film at intervals, simultaneously driven by material receiving shafts corresponding to an A shaft and a B shaft, and stamping forming is carried out through a jump-cutting cutting head. The jump-cutting stamping process is characterized in that before stamping forming of the jump-cutting cutting head, tail ends of the sheet materials are covered by a protective film, at least one part of the protective film is adhered to the bottom film in the corresponding position, the width L of the protective film is equal to or larger than the width W of the tail ends of the sheet materials, after the jump-cutting stamping is completed, and the protective film is removed.

Description

technical field [0001] The invention relates to the technical field of die-cutting, in particular to a jump-cut stamping process of sheet materials. Background technique [0002] When the existing product is formed by a combination of sheet materials and needs to be skipped on its upper surface, the jump-cut stamping process is generally adopted. The existing process steps are as follows, see figure 1 Place the composited sheets on the bottom film at intervals and drive them through the receiving shafts corresponding to the A-axis and the B-axis at the same time. The sheets are driven by the bottom film, and the front-end sheet of the A-axis is easily Quickly drive to the end of the B-axis, causing the product on the A-axis at the end of each piece to directly follow the bottom film of the B-axis during jump cutting, instead of following the corresponding bottom film of the A-axis, resulting in the connection between the products after jump cutting without gaps , so that wh...

AI Technical Summary

Problems solved by technology

[0002] When the existing product is formed by a combination of sheet materials and needs to be skipped on its upper surface, the jump-cut stamping process is generally adopted. The existing process steps are as follows, see figure 1 Place the composited sheets on the bottom film at intervals, and drive them through the receiving shafts corresponding to the A-axis and the B-axis at the same time. The sheets are driven by the bottom film, and the front-end sheet of the A-axis is easy to be Quickly drive to the end of the B-axis, so that the product on the A-axis at the end of each piece of material directly follows the bottom film of the B-axis during jump cutting, instead of following the corresponding bottom film of the A-axis, resulting in the connection between the products after jump cutting without gaps , so that when the existing process is in production, the rate of material tails produced reaches 7%, and the defective rate of the product is high, and the production cost is high

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