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Self-adjusting method for mould clamping force of two-plate machine

A technology of clamping force and self-adjustment, applied in the field of self-adjustment, can solve the problems of reducing mold breathing and exhausting, accelerating mold wear, and increasing energy consumption, so as to reduce wear, reduce waste, and reduce energy consumption.

Active Publication Date: 2021-06-18
NINGBO SHUANGMA MASCH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Before production, the clamping force set should be greater than the force of the molten plastic to open the parting surface of the mold, but excessive clamping force will not only accelerate the wear of the mold, but also reduce the breathing and exhaust of the mold, resulting in the production of products Burning occurs and unnecessary energy consumption is added

Method used

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  • Self-adjusting method for mould clamping force of two-plate machine

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 1 As shown, a self-adjustment method for the clamping force of a two-platen machine includes the following steps:

[0017] Before production starts, set the initial factory clamping force Fn according to the clamping force specified by the mold factory, and set the deviation value F1 that is allowed to be adjusted for each mold, the micro deviation value that is allowed to be adjusted for each mold F1a, and the allowable adjustment value for each mold. The adjustment value F2 of each mold and the fine adjustment value F2a allowed to be adjusted for each mold; the injection process parameters are set according to the type of product actually produced; the change of the mold clamping force during the injection molding production process is monitored in real time through the clamping force sensor;

[0018] Start injecti...

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Abstract

The invention discloses a self-adjusting method for mould clamping force of a two-plate machine. The self-adjusting method is characterized by comprising the following steps that 1, before production, setting initial delivery mould clamping force, a deviation value which is allowed to be adjusted by each mould, a micro-deviation value which is allowed to be adjusted by each mould, an adjusting value which is allowed to be adjusted by each mould, a micro-adjusting value which is allowed to be adjusted by each mould and injection process parameters are set according to the size of a mold, and the change of the mould clamping force of the mold in the injection molding production process is monitored in real time through a mould clamping force sensor; 2, after passing through N moulds, a mould clamping force self-adjusting mode is started; and 3, in the mould clamping force self-adjusting mode, the initial mould clamping force of the next mould is adjusted according to the mould clamping force when the current mould starts high pressure, the mould clamping force in the injection pressure maintaining stage of the current mould and the initial mould clamping force of the current mould. The self-adjusting method has the advantages that the initial mould locking force of the next mould is automatically adjusted by monitoring the mould locking force change of the current mould in real time through the mould locking force sensor, so that the wear of the mold is reduced, the probability that produced products are scorched is reduced, some unnecessary energy consumption in the production process is reduced, and the productivity is improved.

Description

technical field [0001] The invention relates to a self-adjustment method, in particular to a self-adjustment method for the clamping force of a two-platen machine. Background technique [0002] During the injection molding production process of the injection molding machine, the movable mold and the fixed mold need to be tightly combined, and then the barrel injects molten plastic into the cavity, and after cooling, the mold is opened to produce products. In order to prevent the parting surface of the mold from being pushed away by the pressure of the cavity during the injection stage, sufficient clamping force must be applied to the mold, otherwise the parting surface of the mold will be stretched, resulting in flash. [0003] Before production, the clamping force set should be greater than the force of the molten plastic to open the parting surface of the mold, but excessive clamping force will not only accelerate the wear of the mold, but also reduce the breathing and exh...

Claims

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Application Information

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IPC IPC(8): B29C45/76
CPCB29C45/7653B29C2945/76869
Inventor 邓俊钧罗力苏旭波项蔚翔高林
Owner NINGBO SHUANGMA MASCH IND CO LTD
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