Method and mold for molding slide fastener slider body

Details Method and mold for molding slide fastener slider body Method and mold for molding slide fastener slider body

1997-08-18

1999-11-16

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

249142, 264334, 425545, 425556, B29C 3376

Patent

active

059851996

ABSTRACT:
In a mold for molding a slide fastener slider, a first template has a first part of a cavity for molding a rear section of an outer contour of the slider body except an upper surface portion of an upper wing and also has a first core for molding a rear section of an element guide channel of the slider body; a second template which is movable toward and away from the first template has a second cavity part for molding a front section of the outer contour of the slider body and also has a second core for molding a front section of the element guide channel; and a third template which is slidable on the first and second templates has a third part of the cavity for molding a pull-tab attaching lug of the slider body and an outer contour of the upper surface portion/shape of the upper wing. For molding, these templates are brought together to form the cavity, and then molten molding material is poured into the cavity via a channel and a sprue. After solidification of the molding material, the second template together with the third template is moved horizontally away from the first template and then the third template is slid upwardly, in response to which an eject pin projects from the second template to remove a molded product off the mold.

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