Sheet falling prevention manufacturing method of conductive foam die cutting piece

Abstract

The invention relates to an anti-falling piece manufacturing method of a conductive foam die cutting piece, conductive foam comprises polyurethane sponge, conductive cloth and conductive adhesive, and the method comprises the following steps: (1) lamination of a first-stage material belt: laminating a release film (12) on a protective film (11) to form the first-stage material belt; (2) primary punching die cutting is conducted, specifically, primary punching die cutting is conducted on the primary material belt in a primary punching die cutting machine; (3) attaching a second-stage material belt: attaching conductive foam (21) to a release film (12) to form the second-stage material belt; (4) secondary punching die cutting waste discharge: performing secondary punching die cutting on the secondary material belt in a secondary punching die cutting machine, and discharging secondary punching first waste (31) and secondary punching second waste (32) to form a foam die cutting part finished product; and (5) winding of the die cutting part product: winding the foam die cutting part finished product. Compared with the prior art, the invention has the advantages of low reject ratio of fallen chips, no consumption of working hours and manpower and the like.

Description

technical field [0001] The invention relates to the field of die-cutting piece processing, in particular to a method for producing an anti-drop sheet of a conductive foam die-cutting piece. Background technique [0002] Foam is a material foamed by plastic particles; omnidirectional conductive foam is a polyurethane sponge through chemical plating process, it has excellent X-Y-Z three-axis conductivity EMI material, excellent flexibility and high elasticity, polyurethane sponge Substrates can be compounded: conductive cloth, conductive copper foil, conductive aluminum foil, conductive mesh, bonded by conductive glue; polyurethane sponge appearance is gray, black, brown; because of its excellent conductivity and good electromagnetic shielding effect, it is widely used For PDP TVs, LCD monitors, LCD TVs, mobile phones, notebook computers, MP3, communication cabinets, medical equipment and other electronic products, as well as military and aerospace fields, general conductive f...

AI Technical Summary

Problems solved by technology

[0003] In the face of thinner foam die-cut pieces, such as foam die-cut pieces with a width of 1.5mm and a length of about 44.9mm, the shape of the foam will be punched out and the contour waste will be dropped and displaced. Phenomenon, that is, the product will be taken away when the waste is discharged, the product area is exposed or the product is displaced, and the defect rate is as high as 50%. It takes a lot of time for the operator to adjust the machine during die-cutting, and manual personnel are required to fill the exposed area after die-cutting , but also time-consuming, manpower

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