Back to results
US 5,698,239 AGranted
Heating mechanism for zipper forming machines
AssigneeChung-Shan Institute of Science and Technology
InventorsRay-Long Tsai, Joseph Wu
Life of this patent
Estimating the term…
Abstract
A heating mechanism for zipper forming machines includes a mold base, a support seat, a seat cover, a screw sleeve and a heating element. The support seat has a clearance at a central portion and a heat insulation pad is fitted into the clearance for dividing the support seat into a heating area and a cooling area. The heating element is disposed in the heating area and a cooling element is disposed at the cooling area for enhancing heat energy efficiencies and reducing noise.
Claims6
A zipper forming machine comprising:
- a mold base;
- a support seat disposed on said mold base and including a slot;
- a seat cover for covering said seat;
- a screw sleeve disposed in said slot and having an inner wall with an elongate groove formed along the length of the sleeve;
- a central rod disposed within said elongate groove of said screw sleeve;
- a forming screw disposed within said screw sleeve for molding a shape of a nylon filament inserted between said screw and said central rod;
- and
- a heating element, wherein said support seat has a clearance formed at a suitable position in a central portion thereof, a heat insulation pad being fitted into said clearance for dividing said support seat into a heating area and a cooling area, said heating element being disposed at said heating area, and a cooling element being disposed at said cooling area.
5 more elements
Dependencies are inferred from the claim text.