INJECTION MOLDING MACHINE DRIVING DEVICE, INJECTION DEVICE AND MOLD CLAMPING DEVICE

Title:

INJECTION MOLDING MACHINE DRIVING DEVICE, INJECTION DEVICE AND MOLD CLAMPING DEVICE

Document Type and Number:

WIPO Patent Application WO/2004/078453

Kind Code:

A1

Abstract:

The object is to provide an injection molding machine driving device capable of generating a large thrust and of continuous drive with a short cycle. It comprises a casing body (11), a cylindrical linear motor (14) provided with a mover (12) disposed in the casing body (11) for advance and retraction and a stator (13) attached to the casing body (11), the linear motor (14) constituting a first drive section, a driven body (15) advanced and retracted together with the mover (12), and a second drive section attached to the casing body (11) and disposed so as to axially overlap the linear motor (14) at least partially. A slight axial increase in the radial dimension makes it possible to sufficiently increase the area of a permanent magnet (23) for the mover (12), thus increasing the capacity of the linear motor (14).

Inventors:

KONNNO TAKESHI (JP)
TOKUI YOUSUKE (JP)

Application Number:

PCT/JP2004/002769

Publication Date:

September 16, 2004

Filing Date:

March 04, 2004

Export Citation:

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Assignee:

SUMITOMO HEAVY INDUSTRIES (JP)
KONNNO TAKESHI (JP)
TOKUI YOUSUKE (JP)

International Classes:

B29C45/50; B29C45/66; H02K16/00; H02K41/03; H02K7/14; (IPC1-7): B29C45/17; B29C45/50; B29C45/66

Foreign References:

JPH11309752A	1999-11-09
JP2001300967A	2001-10-30
JPH1158468A	1999-03-02
JPS6213310A	1987-01-22
JP2002330577A	2002-11-15
JP2002370263A	2002-12-24
JP2002292704A	2002-10-09
JP2002079555A	2002-03-19

Other References: