DELIVERY CONTROL OF POLYMER MATERIAL IN SEQUENTIAL INJECTION MOLDING PROCESS

Title:

DELIVERY CONTROL OF POLYMER MATERIAL IN SEQUENTIAL INJECTION MOLDING PROCESS

Document Type and Number:

Japanese Patent JP2012236420

Kind Code:

A

Abstract:

To provide a method and device for controlling the delivery of polymer material in a sequential injection molding process.

Provided is a method including: a step of simultaneously delivering a first shot of a first material to a plurality of mold cavities 14a-14i; a step of uniquely detecting characteristics showing the volume or flow of the material delivered to each of corresponding cavities 14a-14i during the delivery step of the first shot; a step of uniquely stopping a step of delivering the first shot to one or more cavities 14a-14i according to a program using the detected characteristics signal as a variable; and a step of simultaneously delivering a second shot of a second material to the cavities 14a-14i after the first shot delivery step stopping step.

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Inventors:

NAHILL THOMAS E
KALMOUNI SAM
MANI NIKHIL
BARKER KEITH
LYNCH BRIAN

Application Number:

JP2012164007A

Publication Date:

December 06, 2012

Filing Date:

July 24, 2012

Export Citation:

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Assignee:

GRAHAM PACKAGING CO LP

International Classes:

B29C45/76; B29C45/46

Domestic Patent References:

JP2005280356A	2005-10-13
JPS5563243A	1980-05-13
JPH079478A	1995-01-13

Attorney, Agent or Firm:

Takaaki Kimura

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