Base for a mold assembly

B - Operations – Transporting – 29 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B29C 49/48 (2006.01)

Patent

CA 2188082

A base assembly for use as a part of a mold assembly for making containers comprises an adaptor, a base insert (or base plug), and a wear ring. The base insert is made from aluminum and has a lower surface positioned on a flat upper supporting surface of the adaptor. The base insert has an upper surface with a ledge surrounding a recessed contoured pattern in the base insert which pattern corresponds to a base of the container to be formed. The base insert has an annular side wall portion. The wear ring has an inner annular surface surrounding and engaging the annular side wall portion of the base insert to protect the annular side wall portion. The wear ring comprises a hardened wear resistant steel ring adapted to reinforce the base insert during formation of the container. The base insert and wear ring are secured to the adaptor by threaded fasteners that pass through threaded apertures in the adaptor, the base insert and the wear ring. By using an aluminum base insert the mass or weight of the base assembly is reduced and the heat transfer characteristics of the base assembly are improved reducing container forming cycle time. Further, the wear ring can be hardened by heat treatment which increases the strength of the wear ring above that of steel base inserts eliminating the need for stellite welding to reinforce the base insert.

Cette invention concerne une base de moule à contenants qui comprend un adaptateur, une empreinte de fond de contenant et une bague d'usure. L'empreinte est en aluminium et comporte une face inférieure placée contre la face supérieure plate de l'adaptateur. L'empreinte comporte une face supérieure et un épaulement qui entoure un évidement dont la forme correspond à celle du fond du contenant à mouler. L'empreinte comporte un flanc annulaire sur lequel s'adapte une bague d'usure de mème section destinée à le protéger. La bague d'usure est en acier durci et sert à consolider l'empreinte en cours de formation du fond du contenant. L'empreinte et la bague d'usure sont fixées à l'adaptateur au moyen de fixations filetées vissées dans des trous taraudés pratiqués dans l'adaptateur, l'empreinte et la bague d'usure. En utilisant une empreinte en aluminium, on obtient un allégement appréciable et des caractéristiques de transfert de chaleur améliorées, ce qui permet de raccourcir la durée du cycle de formation du contenant. De plus, la bague d'usure peut être durcie par traitement thermique, ce qui lui confère une résistance supérieure à celle des empreintes en acier, en plus d'éliminer le besoin de stellitage au chalumeau pour renforcer l'empreinte.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Base for a mold assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Base for a mold assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Base for a mold assembly will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1899962

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.