Method and system for automatically stopping pump at overtime moment of injection molding machine

Abstract

The invention discloses a method for automatically stopping a pump at an overtime moment of an injection molding machine. The method comprises the steps of (1) when a motor is started to work, inputting positive voltage to a time circuit; starting to time by the time circuit; if a signal of the next step is received, executing step (2) when the signal of the next step is received; if the signal of the next step is not received, outputting a positive voltage signal to a pump stopping relay by the time circuit through a time relay; and powering off the injection molding machine by the pump stopping relay and emergently stopping the signal to stop the motor; and (2) sequentially and circularly executing a die assembly movement, an injection platform feeding movement, a glue injection movement, a glue smelting movement, a glue extracting movement, a die opening movement and a die removing movement; when each movement is started, triggering the time circuit by a trigger and zeroing time; and repeatedly timing by a method which is the same as that the step (1). When the system is in failure, the pump can be stopped in time, so that the energy source is saved and the service life of the machine is prolonged.

Description

technical field [0001] The invention relates to an automatic control method, more specifically, to a method and system for automatically stopping a pump of an injection molding machine overtime. Background technique [0002] As the automation of injection molding machines is getting higher and higher, there is often an unattended state around the injection molding machine. As long as there is a slight error or a fault, the machine will be at a standstill, or even if someone finds a fault but cannot handle it and needs help, It is often overlooked that although the machine stops, the motor is still on, resulting in unnecessary waste of energy and abnormal wear of the machine. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide a method for automatically stopping the pump of the injection molding machine overtime to avoid energy waste and abnormal wear of the machine. ...

AI Technical Summary

Problems solved by technology

[0002] As the automation of injection molding machines is getting higher and higher, there is often an unattended state around the injection molding machine. As long as there is a slight error or a fault, the machine will be at a standstill, or even if someone finds a fault but cannot handle it and needs help, It is often overlooked that although the machine is stopped, the motor is still on, resulting in unnecessary waste of energy and abnormal wear of the machine

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