Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1991-12-20
1994-12-13
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
264318, 264334, 264335, 425437, 425443, 425556, B29C 4540, B29C 4543
Patent
active
053727738
ABSTRACT:
A nylon cable tie having a head and a strap terminating in a tip is formed in a mold cavity defined between a first mold part combined wish a second mold part by injecting molten nylon material into the mold cavity through an insulated runner system and a gate that converges from the runner system toward the mold cavity and does not have a hot tip adjacent thereto. The mold parts are separated while retaining a portion of the head in a head region in the first mold part and a portion of the tip in a tip region in the second mold part, in order to separate the head from the second mold part, to separate the tip from the first mold part, and to separate a major portion of the strap from the first and second mold parts. The mold parts are further separated while retaining said portion of the head in the head region to thereby remove said portion of the tip from the second mold part. The head is ejected from the head region by protracted ejector pins that penetrate the head region from within the first mold part. A component containing a nozzle coupled to a source of compressed air and positioned closely adjacent the head region is protracted from the first mold part and pushes on the strap to push the ejected head of the cable tie away from the ejector pins. The cable tie is then ejected from between the mold parts by imparting against the ejected head of the cable tie a forceful stream of compressed air directed from the nozzle.
REFERENCES:
patent: 3093865 (1963-06-01), Peters et al.
patent: 3159878 (1964-12-01), Scott, Jr. et al.
patent: 3537676 (1970-11-01), Miller
patent: 3737490 (1973-06-01), Nicholson
patent: 3776676 (1973-12-01), Kessler
patent: 3898315 (1975-08-01), Haag
patent: 3965538 (1976-06-01), Caveney et al.
patent: 4005164 (1977-01-01), Procter
patent: 4192701 (1980-03-01), Martin et al.
patent: 4238106 (1980-12-01), Willingham
patent: 4354995 (1982-10-01), Wiechard
patent: 4427618 (1984-01-01), Sorensen
patent: 4432127 (1984-02-01), Diazzi
patent: 4473524 (1984-09-01), Paradis
patent: 4562990 (1986-01-01), Rose
patent: 4666323 (1987-05-01), Kessler
patent: 4688302 (1987-08-01), Caveney et al.
patent: 4730615 (1988-03-01), Sutherland
patent: 4776067 (1988-10-01), Sorenson
patent: 4793793 (1988-12-01), Swenson et al.
patent: 4833741 (1989-05-01), Mizuno et al.
patent: 4880587 (1989-11-01), Fichlseder et al.
patent: 4902218 (1990-02-01), Leonard et al.
patent: 4944475 (1990-06-01), Ono et al.
patent: 5002480 (1991-03-01), Geuert et al.
patent: 5006288 (1991-04-01), Rhodes, Jr. et al.
patent: 5028225 (1991-07-01), Staheli
patent: 5042535 (1991-08-01), Schlottke
patent: 5053179 (1991-10-01), Masui et al.
patent: 5096651 (1992-03-01), LeConte
patent: 5123686 (1992-06-01), Wenk
patent: 5131613 (1992-07-01), Kamiya et al.
patent: 5135694 (1992-08-01), Akahane et al.
patent: 5146654 (1992-09-01), Caveney et al.
Sorensen Jens O.
Sorensen Soren C.
Callan Edward W.
Ortiz Angela Y.
Silbaugh Jan H.
LandOfFree
Rapid injection molding of elongated articles, such as cable tie does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rapid injection molding of elongated articles, such as cable tie, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid injection molding of elongated articles, such as cable tie will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1191555