Continuous molding of fastener products and the like and product

Details Continuous molding of fastener products and the like and product Continuous molding of fastener products and the like and product

1997-04-16

1999-08-31

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Control means responsive to product weight or dimension

425149, 425150, 425363, 425367, B29C 4346, B29C 4358

Patent

active

059451319

ABSTRACT:
Improvements for an apparatus for continuously molding small fastener elements integral with a base web from a flowable resin. The apparatus includes a rotating cylindrical mold roll defining small fastener element-shaped mold cavities in its peripheral surface. Resin is forced into the cavities under pressure at a gap between the mold roll and either a pressure roll, a pressure nozzle, or a belt. The improvements compensate for the crowning of the mold roll under high molding pressures, enabling the molding of wider products. Other gap controls include skewing, product thickness feedback, and active roll bending. Some pressure and backup rolls have compliant surfaces for conforming to the mold roll to avoid high contact loads that can damage the cavities.

REFERENCES:
patent: 2897538 (1959-08-01), Shapiro et al.
patent: 3089191 (1963-05-01), Conrad
patent: 3240148 (1966-03-01), Varga
patent: 3312583 (1967-04-01), Rochlis
patent: 3353663 (1967-11-01), Kayser et al.
patent: 3594863 (1971-07-01), Erb
patent: 3594865 (1971-07-01), Erb
patent: 3752619 (1973-08-01), Menzin et al.
patent: 3756760 (1973-09-01), McBride
patent: 3956056 (1976-05-01), Boguslawski et al.
patent: 4015919 (1977-04-01), Pawelczyk
patent: 4117054 (1978-09-01), Salo
patent: 4124349 (1978-11-01), Lehmann
patent: 4137034 (1979-01-01), Moertel
patent: 4596523 (1986-06-01), Whitehead
patent: 4605366 (1986-08-01), Lehmann et al.
patent: 4794028 (1988-12-01), Fischer
patent: 5057167 (1991-10-01), Gersbeck
patent: 5147592 (1992-09-01), Sato et al.
patent: 5217532 (1993-06-01), Sasame et al.
patent: 5240666 (1993-08-01), Schnyder et al.
patent: 5254194 (1993-10-01), Ott et al.
patent: 5263840 (1993-11-01), Heitmann et al.
patent: 5393475 (1995-02-01), Murasaki et al.
patent: 5441687 (1995-08-01), Murasaki et al.

Affiliated with

Also associated with

Rating

Continuous molding of fastener products and the like and product does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous molding of fastener products and the like and product, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous molding of fastener products and the like and product will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2425961