Multi-cavity mold apparatus having independently controlled heat

Details Multi-cavity mold apparatus having independently controlled heat Multi-cavity mold apparatus having independently controlled heat

1995-02-28

1996-05-21

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

Temperature control

264 406, 425570, 425572, B29C 4578

Patent

active

055183891

ABSTRACT:
A multi-cavity mold has flow-distribution adjusting heaters provided for respective ones of main runners branching from a common channel so as to correspond to a plurality of cavities. The amount of resin charged into the cavities is made uniform from one cavity to the next by independently controlling the heaters. Sub-runners leading respective ones of the main runners are respectively provided with heaters for adjusting gate finish. The gate finish and moldability are improved by independently controlling these heaters. The main runners hold enough resin for at least one shot, and pressure loss in the sub-runners is made equal to or greater than pressure loss in the main runners.

REFERENCES:
patent: 3951375 (1976-04-01), Lovell
patent: 4755126 (1988-07-01), Leverenz
patent: 4964795 (1990-10-01), Tooman
patent: 5147663 (1992-09-01), Trakas
patent: 5227179 (1993-07-01), Benenati
Communication dated Sep. 20, 1995 from Japanese Patent Office issued in Corresponding JPA-299137.

Affiliated with

Also associated with

Rating

Multi-cavity mold apparatus having independently controlled heat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-cavity mold apparatus having independently controlled heat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-cavity mold apparatus having independently controlled heat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2033887