Method and apparatus for manufacturing surface fastener
AssigneeYKK Corporation
InventorsKeisuke Sakakibara, Ryuichi Murasaki, Tsuyoshi Minato
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AssigneeYKK Corporation
InventorsKeisuke Sakakibara, Ryuichi Murasaki, Tsuyoshi Minato
Estimating the term…
A high-quality molded surface fastener is manufactured by extruding molten thermoplastic resin, in a predetermined width, from an extrusion nozzle to a circumferential surface of a die wheel having a multiplicity of engaging-element-forming cavities, driving the die wheel for rotation, and molding a multiplicity of engaging elements integrally with a plate-like substrate sheet. At the same time, pseudo elements are molded integrally with the substrate sheet along opposite side edges, using pseudo-element-forming cavities in opposite side circumferential surfaces of the die wheel simultaneously. With the pseudo elements, the molded surface fastener is peeled off the die wheel under a uniform peeling force through the entire width of the substrate sheet. Thus the high-quality surface fastener can be obtained.
A method of continuously manufacturing a surface fastener, comprising:
An apparatus for continuously manufacturing a surface fastener, comprising:
Dependencies are inferred from the claim text.