Base for injection molding machine

Patent metadata

Field	Value
Publication number	US-2018370102-A1
Application number	US-201816000113-A
Country	US
Kind code	A1
Filing date	Jun 5, 2018
Priority date	Jun 22, 2017
Publication date	Dec 27, 2018
Grant date	—

Abstract

Provided is a base (30) used in an injection molding machine. The base (30) for an injection molding machine includes, two side frames (40) extending parallel with the axis of a drive actuator (16). Each of the side frames (40) includes a lower flange (44) supported by a bed (11), an upper flange (45) disposed parallel with the lower flange (44), at least two webs (46) connecting the upper flange (45) and the lower flange (44), and a web reinforcing member (47) fixed to the webs (46) while penetrating the webs (46).

First claim

What is claimed is:

1 . A base for an injection molding machine, the base for an injection molding machine comprising:
two side frames extending parallel with an axis of a drive actuator; each of the two side frames comprising a lower flange supported by a bed, an upper flange disposed parallel with the lower flange, at least two webs connecting the upper flange and the lower flange, and a web reinforcing member fixed to the at least two webs while penetrating the at least two webs.

2 . The base for an injection molding machine according to claim 1 , further comprising:
a slide plate disposed on an upper surface of the upper flange and supporting a movable body moved by the drive actuator, the slide plate comprising a lateral center positioned offset from a lateral center of the upper flange toward a center of the injection molding machine, in a cross-sectional view of the side frame, and the at least two webs being positioned in correspondence with the slide plate; an anchor bolt hole positioned outside an outermost web between the at least two webs, in the lower flange; and a stiffener attached to the side frame and connected with an upper surface of the lower flange, an outer surface of the outermost web, and a lower surface of the upper flange.

3 . The base for an injection molding machine according to claim 2 , wherein:
the injection molding machine comprises a mold clamping unit; the mold clamping unit comprises:
a base for a mold clamping unit fixed to the bed;
a fixed platen fixed to the base for a mold clamping unit and supporting a fixed mold;
a mold clamping cylinder movably disposed on the base for a mold clamping unit;
a mold opening/closing actuator indirectly moving the mold clamping cylinder;
a movable platen disposed between the fixed platen and the mold clamping cylinder, supported by the base for a mold clamping unit in a horizontally movable manner, and supporting a movable mold; and
a tie bar extending horizontally from the fixed platen through the movable platen and the mold clamping cylinder; and
the base for an injection molding machine is the base for a mold clamping unit, the drive actuator is the mold opening/closing actuator, and the movable body is the movable platen.

4 . The base for an injection molding machine according to claim 1 , further comprising:
a front cross member connecting front ends of the two side frames; and a rear cross member connecting rear ends of the two side frames.

Assignees

• Nissei Plastics Ind Co

Inventors

• Murata Atsushi
• Tanemura Daiki
• Hoshino Satoshi

Classifications

• B29C45/1761 Primary

  Means for guiding movable mould supports or injection units on the machine base or frame; Machine bases or frames (B29C45/1747 takes precedence) · CPC title

• B29C2045/1767

  connecting means for machine base parts · CPC title

• B29C45/17

  Component parts, details or accessories; Auxiliary operations · CPC title

• B29C45/64

  Mould opening, closing or clamping devices {(combined with means for plasticising or homogenising B29C45/70)} · CPC title

• B29C2045/1765

  Machine bases · CPC title