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What are the safety protection measures for the rapid mold changing system of the injection molding machine?

Release date:2017-04-19Clicks:Publisher:admin
Injection molding machine rapid mold change system can reflect the size of the clamping force in real time, the mold is not working properly in advance to stop the alarm, the work process without electricity, not affected by power outages. Thousands of injection molding machine rapid mold changing system with multi-layer security protection measures to prevent the occurrence of misuse, real-time protection system safe operation. The existing security detection methods are as follows:
Rapid Mixing Machine for Injection Molding Machine
1. Mold close to the test
 In the mode change mode, the dynamic and static mold must be in the mold clamping state, injection molding machine static and static mold in place, in order to carry out the magnetic operation; this interlock control to avoid the mold and magnetic sucker between the existence of foreign matter or gap Magnetizing strength is not enough, affecting the safe operation.
2. Magnetic flux detection:
When the rapid mold change system is magnetized, the controller realizes the magnetization intensity. Only when the magnetization intensity reaches the safe value, the control system reports the successful signal of magnetization, otherwise it will report the fault signal. After the magnetization is successful and the injection process, the magnetic flux detection sensor realizes the magnetic flux between the magnetic chuck and the mold in real time. As soon as the magnetic flux decreases slightly, the rapid changeover system can quickly send out the fault alarm signal and stop the automatic injection molding machine run. The magnetic flux detection sensor is distributed in a plurality of areas of the permanent magnet chuck.
3. Distance detection
The distance detection sensor is used to detect the distance between the mold and the magnetic chuck. Only when the distance between the mold and the magnetic chuck is less than 0.2mm, the controller can perform the demagnetization operation. Otherwise it will report the fault signal. During the injection molding process, when the distance between the mold and the magnetic chuck is more than 0.2mm due to the unexpected situation, the rapid changeover system reports the fault signal and stops the automatic operation of the injection molding machine.
4. Temperature detection
The temperature detection is used to prevent the permanent magnet sucker from demagnetizing due to the high temperature, resulting in a decrease in the suction force of the magnetic chuck. When the permanent magnet sucker temperature exceeds the set temperature, the control system automatically sends out the alarm signal and stops the automatic operation of the injection molding machine.
5. Magnetron current intensity detection
When the permanent magnet sucker is charged and demagnetized, the control system detects the pulse current of the demagnetization and demagnetization. Only after the required value is reached, the demagnetization success signal is reported.
6. Mold misregistration detection
The mold misregister detects the position of the mold in real time while in the injection state. When the position of the mold is slightly slid, the control system can quickly report the fault signal and stop the automatic operation of the injection molding machine.
7. The mold change state and the injection state switch using the key switch, demagnetization operation is designed as "demagnetization + lock" double button, two buttons only when pressed, the demagnetization operation is effective to prevent the misuse of the production, injection molding, filling The demagnetization operation is completely ineffective.
8. Safety door closed detection
When changing the mold, the safety door must be closed to protect the operator.
 9. Rapid mold change system fault output and injection molding machine automatic operation Interlock control Rapid change mode The permanent magnet control system has a passive contact and injection molding machine interlock control, rapid mold change system only in the detection signal are normal, Static and dynamic mode are magnetized after the success, and the key switch to the injection molding state, the contact was closed, allowing the automatic operation of the injection molding machine, any one of the fault signal or key switch rotation to the mold state, the contact will Immediately disconnect, stop the automatic operation of the injection molding machine.
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