Method of setting mold clamping force of injection molding machine

一种注射成型机、设定方法的技术，应用在合模力设定领域，能够解决无法用、无法得到模具变形、增大余量等问题，达到容易自动化的效果

Active Publication Date: 2010-06-16
NISSEI PLASTIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is room for further improvement in terms of setting an appropriate (accurate) mold clamping force. For example, in consideration of deviations, etc., it is necessary to increase the additional margin (mold clamping force), etc.
[0007] Second, because it is to detect the opening of the mold, it is impossible to obtain comprehensive information about mold deformation, etc.
Therefore, it cannot be used for analysis (analysis) of the influence of mold deformation on molded products during molding, so there is room for further improvement in terms of obtaining more comprehensive mold information

Method used

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  • Method of setting mold clamping force of injection molding machine
  • Method of setting mold clamping force of injection molding machine
  • Method of setting mold clamping force of injection molding machine

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Embodiment Construction

[0029] Hereinafter, a preferred embodiment of the present invention will be taken as an example to describe in detail according to the accompanying drawings. In addition, the purpose of the accompanying drawings is to facilitate understanding of the present invention, not to limit the present invention. In addition, in order not to obscure the invention, detailed descriptions of known parts are omitted.

[0030] First, refer to figure 1 and figure 2 The configuration of the injection molding machine M capable of implementing the mold clamping force setting method of this embodiment will be described.

[0031] exist figure 2Among them, M is an injection molding machine, which has an injection device Mi and a mold clamping device Mc. The injection device Mi has a heating cylinder 23 having an injection nozzle 21 at the front end and a hopper 22 for material supply at the rear, and a screw 24 is built in the heating cylinder 23 . In addition, an injection cylinder (cylinde...

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Abstract

The invention provides a method of setting a mold clamping force of a injection molding machine. Test molding is performed by sequentially clamping a mold 2 with a mold clamping force (100%, 80%, 70%, . . . ) obtained by sequentially lowering a mold clamping force by a predetermined amount from the maximum mold clamping force (100%); with mold position sensors 4 provided on outer surfaces 3cf and3mf of a fixed platen 3c supporting a fixed mold 2c of the mold 2 and a movable platen 3m supporting a movable mold 2m of the mold 2, a relative position (mold position Xc) of the movable platen 3m with respect to the fixed platen 3c in an injection process is detected; and, when at least a variation that meets predetermined conditions is produced on the mold position Xc, a mold clamping force obtained by increasing a mold clamping force at a time of occurrence of the variation by a predetermined amount is set as a proper mold clamping force Fs.

Description

technical field [0001] The present invention relates to a mold clamping force setting method suitable for setting an arbitrary mold clamping force smaller than the maximum mold clamping force when a mold clamping device clamps a mold for an injection molding machine. Background technique [0002] Generally, an injection molding machine has a mold clamping device for clamping a mold. In such a mold clamping device, for example, if high-pressure mold clamping is performed using the maximum clamping force of the mold clamping device, safe mold clamping can be performed without causing problems such as flashing. Excessive clamping force leads to early deterioration of the mold and unnecessary increase in energy consumption, and defects and damages on the surface of the cavity such as melt marks, burns, and black bars due to insufficient exhaust, need to be repaired. Therefore, if the mold can be closed with the minimum appropriate clamping force required by the mold, excessive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/76
CPCB29C2945/76387B29C2945/76083B29C2945/76498B29C45/7653B29C2945/76227B29C2945/76702
Inventor 工藤善昭箱田隆中村清两角进
Owner NISSEI PLASTIC IND CO LTD
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