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injection molding machine

A technology of injection molding machine and motion conversion mechanism, which is applied in the field of injection molding machines, can solve problems such as injection molding machine pollution, and achieve the effect of preventing pollution

Active Publication Date: 2022-02-11
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These lubricants or lubricant mist may cause contamination of injection molding machines or adhesion of lubricants to molded products

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach 》

[0019] (injection molding machine)

[0020] figure 1 It is a figure showing the state at the end of mold opening of the injection molding machine of 1st Embodiment. figure 2 It is a figure which shows the state at the time of mold clamping of the injection molding machine of 1st Embodiment. Figure 1 ~ Figure 2 Among them, the X direction, the Y direction, and the Z direction are directions perpendicular to each other. The X direction and the Y direction represent the horizontal direction, and the Z direction represents the vertical direction. When the mold clamping device 100 is a horizontal type, the X direction is the mold opening and closing direction, and the Y direction is the width direction of the injection molding machine 10 . Such as figure 1 and figure 2 As shown, the injection molding machine 10 has a mold clamping device 100 , an ejector device 200 , an injection device 300 , a moving device 400 , a control device 700 and a frame 900 . Each component of th...

no. 2 Embodiment approach 》

[0138] Next, an injection molding machine according to a second embodiment will be described. Compared with the injection molding machine according to the first embodiment, the injection molding machine according to the second embodiment has a different configuration of the scattering prevention mechanism.

[0139] Image 6 It is a schematic cross-sectional view illustrating the structure around the motion conversion mechanism 170 of the injection molding machine according to the second embodiment. In the first embodiment such as image 3 Shown is a structure in which the lubricant is prevented from scattering by the screw shaft cover 30 and the nut cover 40, but in the second embodiment, the Image 6 Shown is a structure in which the lubricant is prevented from scattering by the screw cap 40 and the screw cap 40B.

[0140] The screw cap 40B includes a cap main body 41B, a labyrinth seal 47B, and a collar 48B. The cover main body 41B has a cylindrical shape including an in...

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Abstract

The present invention provides an injection molding machine that prevents contamination due to lubricant. The injection molding machine of the present invention has: a motion conversion mechanism (170) for at least one of the injection device (200) and the mold clamping device (100), and has a screw shaft (171) and a screw shaft (171) lubricated by a lubricant. The screw nut (172); and the first cover (40), for the screw shaft (171) to be inserted and fixed on one end side of the screw nut (172), the first cover (40) has: the cover main body (41); The supply part (45) blows air to the screw shaft (171) in the inner space (42) of the cover body (41); the first recovery part (46) recovers the air in the inner space (42) of the cover body (41). lubricant; and a sealing member (47), which seals between the cover main body (41) and the screw shaft (171).

Description

technical field [0001] This application claims priority based on Japanese Patent Application No. 2018-062804 filed on March 28, 2018. The entire contents of this Japanese application are incorporated herein by reference. [0002] The invention relates to an injection molding machine. Background technique [0003] There is known an injection molding machine, which is provided with a motion conversion mechanism consisting of a screw shaft and a screw nut, and the screw nut is fixed to a crosshead so that the screw shaft is rotated by a mold clamping motor, thereby causing the crosshead to advance and retreat (patent Literature 1). In addition, lubricant is supplied to the motion conversion mechanism for the purpose of lubrication, cooling, and the like. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2018-030356 [0005] Lubricant may scatter due to dripping of the lubricant supplied to the motion conversion mechanism, centrifugal force when the screw shaft rotat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/83B29C45/17
CPCB29C45/83B29C45/17B29C2045/1797B29C2045/835
Inventor 宫武勤
Owner SUMITOMO HEAVY IND LTD