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injection molding machine

A technology for injection molding machines and supporting parts, applied in the field of injection molding machines, can solve problems such as temperature rise, large temperature gradient, and temperature difference of supporting parts, etc., and achieve the effect of suppressing deflection

Active Publication Date: 2021-08-10
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the center support structure described in Patent Document 1, a temperature difference in the support portion tends to exist between the heat flow upstream side on the mold side and the heat flow downstream side on the opposite side.
In particular, if the mechanical size of the injection molding machine is designed to be small, the temperature rise on the mold side near the heat source will increase due to the decrease in mass, and the temperature gradient will increase.

Method used

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Embodiment Construction

[0019] Embodiments will be described below with reference to the drawings. In order to facilitate understanding of the description, as much as possible, the same components in the drawings are assigned the same reference numerals, and redundant descriptions are omitted.

[0020] First, refer to Figure 1 ~ Figure 4 , the overall basic structure of the injection molding machine 10 of this embodiment will be described. figure 1 It is a figure showing the state at the end of mold closing of the injection molding machine 10 according to one embodiment of the present invention. figure 2 It is a figure showing the state at the end of mold opening of the injection molding machine 10 according to one embodiment of the present invention. image 3 is along figure 1 The sectional view of the line III-III is a sectional view of the movable platen 13. Figure 4 is along figure 1 The sectional view of the IV-IV line is a sectional view of the fixed platen 12.

[0021] Such as figure...

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PUM

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Abstract

The present invention provides an injection molding machine capable of suppressing occurrence of deflection due to thermal deformation of a support portion of a platen. This injection molding machine (10) is equipped with a movable platen (13), provided with a mold mounting surface (41A) on which a movable mold (33) is mounted, and the movable platen (13) has a pair of supporting parts (44L, 44R) from which A pair of side surfaces (42L, 42R) orthogonal to the mold mounting surface (41A) extend outward to set and support the movable platen (13), and the support portion (44L, 44R) has a groove (141), and the groove (141) As an adjustment part that reduces the temperature difference Δθ between the heat flow upstream side (142) on the side where the movable mold (33) is installed and the heat flow downstream side (143) on the opposite side.

Description

technical field [0001] This application claims priority based on Japanese Patent Application No. 2018-064098 filed on March 29, 2018. The entire content of this application is incorporated in this specification by reference. [0002] The invention relates to an injection molding machine. Background technique [0003] In an injection molding machine, a central support structure in which a pair of support portions are provided on both left and right sides of a platen main body is proposed (for example, Patent Document 1). In this central support structure, unlike the case of supporting the lower surface of the platen body, the temperature distribution of the platen body is vertically symmetrical. Thereby, the platen main body is thermally deformed vertically symmetrically, and is held perpendicular to the frame. As a result, the movable mold attached to the movable platen and the fixed mold attached to the fixed platen are kept in parallel, so that the mold clamping force c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/78B29C45/17
CPCB29C45/78B29C45/1744B29C45/64
Inventor 森谷知宽
Owner SUMITOMO HEAVY IND LTD