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Mould locking signal control system and control method of injection molding machine

A signal control and mold clamping technology, applied in the injection molding machine mold clamping signal control system and control field, can solve problems such as control system errors, mold damage, and inability to provide molds, and achieve the effect of preventing secondary mold clamping.

Active Publication Date: 2012-12-19
SHENZHEN HUACHENG IND CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above process, the manipulator cuts off the allowable mode-locking signal after receiving the mold-opening-in-place signal, and outputs the allowable-mode-locking signal after taking out the product. This will cause a problem, that is, when the manipulator has not received the mold-opening in-position Signal, its external allowable mold clamping signal cannot be broken, and the continuous allowable mold clamping signal will cause the injection molding machine to continue to press the next product into the mold after completing the die casting of the previous product, and cause damage to the mold
[0005] The reason mainly lies in whether the control system can accurately transmit the mold opening signal. Although the control system of the existing injection molding machine has high reliability, there is still a possibility of error in a single control system, and the current In the control method, once the above-mentioned situation of control system error is faced, other protective measures cannot be provided to protect the mold from damage, so it is urgent to improve

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  • Mould locking signal control system and control method of injection molding machine
  • Mould locking signal control system and control method of injection molding machine
  • Mould locking signal control system and control method of injection molding machine

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Embodiment Construction

[0018] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0019] see figure 1 , This embodiment relates to a mold clamping signal control system for an injection molding machine, which includes a master controller, a slave controller, a master mold clamping permission relay and a slave mold clamping permission relay.

[0020] Among them, the output of the main controller is connected to the master mode-locking allowable relay, while the output of the slave controller is connected to the slave mode-locking allowable relay. Signal, that is, the output of the main mode-locking allowable relay and the slave mode-locking allowable relay are connected in series, so that the protection of the allowable mode-locking signal can be realized directly. Moreover, two relays are more reliable than one relay, e...

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Abstract

The invention provides a mould locking signal control system and control method of an injection molding machine. Control of an allowable mould locking signal is sent by a master controller (master control) through a framework and a control method, which adopt system double controls to work at the same time; meanwhile, a servo controller (servo control) continuously detects the current state of the master controller (master control); and once the master controller (master control) is detected to have faults (for example, the work of an input point and an output point is abnormal, caused by the faults of a core part / peripheral circuit, or a control signal is abnormal and the like), the servo controller (servo control) still can continuously finish the control on the mould locking signal. Furthermore, the control method adds a time attribute for the allowable mould locking signal so that the allowable mould locking signal is automatically shut down after the allowable mould locking signal is connected for a period of time; and therefore, the condition of secondary die assembly of the injection molding machine can be effectively prevented.

Description

technical field [0001] The invention relates to the field of control of numerically controlled machine tools, in particular to an injection molding machine clamping signal control system and a control method. Background technique [0002] For the injection molding machine, the clamping signal is a very important signal. When the injection molding machine is clamped, it can generate a clamping force of not less than 140kg. At this time, if there is anything between the two templates of the injection molding machine, it may be pressed For the powder. Therefore, if the clamping signal of the manipulator of the injection molding machine is not well controlled, resulting in the product not being taken clean or even the manipulator is still between the two templates of the mold below, not only the manipulator will be scrapped, but even the mold itself will be greatly damaged. [0003] However, in the existing linkage control between the injection molding machine and the manipulat...

Claims

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Application Information

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IPC IPC(8): B29C45/76
Inventor 孙毅董改田冷俊
Owner SHENZHEN HUACHENG IND CONTROL