The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10792847 B1

Date of Patent:

Oct. 06, 2020

Filed:

Nov. 13, 2017

Injection molding machine

Applicant:

Sodick Co., Ltd., Kanagawa, JP;

Inventor:

Koichi Yokoyama, Kanagawa, JP;

Assignee:

SODICK CO., LTD., Kanagawa, JP;

Attorney:

JCIPRNET

Primary Examiner:

Nahida Sultana

Int. Cl.

CPC ...

B29C 45/04 (2006.01); B29C 45/54 (2006.01); B29C 45/27 (2006.01); B29C 45/56 (2006.01); B29C 45/67 (2006.01); B29C 45/53 (2006.01); B29C 45/82 (2006.01); B29C 45/50 (2006.01); B29C 45/42 (2006.01);

U.S. Cl.

CPC ...

B29C 45/045 (2013.01); B29C 45/2737 (2013.01); B29C 45/53 (2013.01); B29C 45/54 (2013.01); B29C 45/56 (2013.01); B29C 45/67 (2013.01); B29C 45/82 (2013.01); B29C 45/4208 (2013.01); B29C 45/5008 (2013.01);

Abstract

Provided is an injection molding machine () including a plasticizing unit (), an injection unit (), a communication path () configured to communicate therebetween and having an opening () on the plasticizing unit side which is located on an axis of the screw (), and a backflow prevention mechanism part () configured to close and open the opening on the plasticizing unit side by advancing and retreating the screw () in the axial direction, wherein the backflow prevention mechanism part () includes a tapered wedge portion () having an inclined surface (), a driving portion () which moves the wedge portion in the forward and backward directions, and a pressing member which is pressed against the inclined surface () by forward movement of the wedge portion and moves the screw toward the opening on the plasticizing unit side.

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