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injection molding machine

A technology for injection molding machines and injection devices, which is applied in the field of injection molding machines, can solve problems such as uneven quality of molded products, and achieve the effect of reducing uneven quality

Active Publication Date: 2019-06-18
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the past, in addition to the pressure of the resin, the detection value of the load cell also included mechanical frictional resistance, etc., and the quality of the molded product was large.

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each of the drawings, the same or corresponding components are assigned the same or corresponding symbols and description thereof will be omitted.

[0014] figure 1 It is a figure which shows the state at the end of mold opening of the injection molding machine based on one embodiment. figure 2 It is a figure which shows the state at the time of mold clamping of the injection molding machine based on one embodiment.

[0015] Such as figure 1 and figure 2 As shown, the injection molding machine has, for example, a frame Fr, a mold clamping device 10 , an injection device 40 , a control device 90 , an input device 95 , and an output device 96 .

[0016] First, the mold clamping device 10 will be described. In the description of the mold clamping device 10, the moving direction of the movable platen 13 during mold closing ( figure 1 and figure 2 In the right dire...

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PUM

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Abstract

Provided is an injection molding machine in which variation in the quality of a molding product is reduced. An injection molding machine includes: a mold clamping unit (10) which performs mold closing, mold clamping, and mold opening of a mold unit (30); an injection unit (40) which injects a molding material into the mold unit (30); a controller (90) which controls the mold clamping unit (10) and the injection unit (40); and a distortion detector which detects a distortion of the mold unit (30) due to a pressure of the molding material which is filled into the mold unit (30), in which the controller (90) controls the injection unit (40), based on the detection value of the distortion detector.

Description

technical field [0001] This application claims priority based on Japanese Patent Application No. 2016-021009 filed in Japan on February 5, 2016. The entire content of the application is incorporated in this specification by reference. [0002] The invention relates to an injection molding machine. Background technique [0003] The injection molding machine described in Patent Document 1 includes a cylinder for supplying resin, a screw for injecting resin into a mold from the front end of the cylinder, and a load cell for detecting the pressure of the resin. A plurality of ball nuts are fixed at symmetrical positions with respect to the cylinder on the cylinder fixing plate for fixing the cylinder. A ball screw is screwed into each ball nut, and the bearing of each ball screw is held by the injection screw pressure plate. A load cell is interposed between the outer ring of the bearing of any one of the ball screws and the stepped portion of the hole of the injection screw ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/03B29C45/77B29C45/76
CPCB29C45/03B29C45/76B29C45/77B29C2945/76003B29C2945/76103B29C2945/76234B29C2945/76254B29C2945/76381B29C2945/76384B29C2945/76458B29C2945/76481B29C2945/76488B29C2945/76498B29C2945/76765B29C2945/76859B29C2945/76862B29C2945/76933B29C2945/76936B29C2945/76943
Inventor 宫武勤
Owner SUMITOMO HEAVY IND LTD