Surface Fastener Molding Apparatus and its Operational Method, and a Method for Producing a Surface Fastener

摘要

A surface fastener molding apparatus includes a supporting structure and a second supporting structure for axially supporting a mold roll in a rotatable manner at a first end side and a second end side of the mold roll which is opposite to the first end side. The mold roll includes a circumferential surface in which a plurality of mold cavities for molding engaging elements of the surface fastener is provided. A first linear driving means and second linear driving means are provided which are for, respectively, advancing or retracting the first supporting structure and the second supporting structure. The degree of closeness between the extruding nozzle and the mold roll is regulatable across the first end side and the second end side of the mold roll, based on at least one activation of the first driving means and the second driving means.

主权项

1. A surface fastener molding apparatus in which a first supporting structure and a second supporting structure axially support a mold roll in a rotatable manner at the first end side and the second end side of the mold roll which is opposite to the first end side, the mold roll including a circumferential surface in which a plurality of mold cavities for molding engaging elements of a surface fastener is provided, the surface fastener molding apparatus comprising:
driving means for advancing or retracting the mold roll relative to an extruding nozzle, the advancing of the mold roll toward an extruding mouth of the extruding nozzle defining a mold space for a substrate of the surface fastener between the circumferential surface of the mold roll and an opposed surface of the extruding nozzle, wherein the driving means comprises first driving means and second driving means for advancing or retracting the first supporting structure and the second supporting structure respectively, and wherein the degree of closeness between the extruding nozzle and the mold roll is regulatable across the first end side and the second end side of the mold roll based on at least one activation of the first driving means and the second driving means.