Production apparatus for producing hollow molded product

Patent metadata

Field	Value
Publication number	US-9358740-B2
Application number	US-201214004224-A
Country	US
Kind code	B2
Filing date	Mar 9, 2012
Priority date	Mar 11, 2011
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A production apparatus includes the following stations juxtaposed in the following sequence: a parison forming station for forming a parison; a built-in part attachment station where opposite sides of a center die provided with a built-in part are held between a pair of molding dies to locate the center die in the molding dies with the parison between the center die and the molding dies, and the built-in part being attached to the parison transferred to the molding dies; a molding station where the molding dies are closed to mold the hollow molded product; and a conveyance station for taking the hollow molded product out of the molding dies and conveying the hollow molded product. The center die is fixed at the built-in part attachment station, and the molding dies are configured to be movable back and forth between the built-in part attachment station and the molding station.

First claim

What is claimed is:

1. A production apparatus for producing a hollow molded product, comprising the following stations juxtaposed in the following sequence from one end of the production apparatus:
a parison forming station for forming a parison;
a built-in part attachment station in which opposite sides of a single center die provided with a built-in part are held between a pair of molding dies to locate the single center die in the molding dies with the parison being laid between the single center die and the molding dies, the parison being supplied from the parison forming station and being in a state before being transferred to the molding dies, and then the built-in part is attached to the parison transferred to the molding dies;
a molding station in which the molding dies are closed to mold the hollow molded product; and
a conveyance station for taking the hollow molded product out of the molding dies and conveying the hollow molded product,
wherein the center die is fixed at the built-in part attachment station, and
wherein the molding dies are configured to be movable back and forth only between the built-in part attachment station and the molding station.

2. The production apparatus for producing a hollow molded product as claimed in claim 1 , further comprising a parison carrying-in device which is configured to be movable back and forth between the parison forming station and the built-in part attachment station, and carries in the parison formed in the parison forming station to the opposite sides of the single center die while gripping the parison.

Assignees

• Watanabe Takatoshi
• Araya Satoru
• Niihori Masahiro
• Iwase Wataru
• Tabuchi Naoya
• Ohtaki Kazuhiro
• Hisatomi Yuji
• Saito Naoto
• Murata Naoyuki
• Kawachi Ryuichi
• Ito Yuji
• Yachiyo Ind Co Ltd
• Japan Steel Works Ltd

Inventors

• Watanabe Takatoshi
• Araya Satoru
• Niihori Masahiro
• Iwase Wataru
• Tabuchi Naoya
• Ohtaki Kazuhiro
• Hisatomi Yuji
• Saito Naoto
• Murata Naoyuki
• Kawachi Ryuichi
• Ito Yuji

Classifications

• B29C49/04

  Extrusion blow-moulding · CPC title

• B29C49/28

  Blow-moulding apparatus · CPC title

• B29C66/81463

  comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint · CPC title

• B29C66/8322

  Joining or pressing tools reciprocating along one axis · CPC title

• B29C47/0021

  Operations & Transport · mapped topic