Material taking apparatus for solid crystal machine

Abstract

The invention discloses a material taking apparatus for a solid crystal machine. The material taking device comprises a material taking device and a gas flow monitoring device. The material taking device comprises an electromagnetic valve group and a suction nozzle. The gas flow monitoring device comprises a flow sensor, a flow detection circuit and an upper host machine. The upper host machine is used for presetting the comparison voltage corresponding to the suction nozzle. The flow detection circuit is used to detect whether the suction nozzle works normally or not and to give the feedback to the upper host machine. The voltage sampling can be carried out through a lower host machine. Based on the sampled working voltage and the comparison of the comparison voltage transmitted to the lower host machine through the upper host machine, it is possible to further determine the state of the suction nozzle. When the suction nozzle ages but can still be used, the comparison voltage with a higher value can be replaced. In this way, the service life of the suction nozzle is extended. In addition, the comparison result of the suction nozzle can be known to the upper host machine in real time, which facilitates the management and control of the apparatus, and realizes the determining of the suction nozzle state intelligently and effectively.

Description

technical field [0001] The invention relates to the technical field of crystal bonders, in particular to a material reclaiming device for a crystal bonder. Background technique [0002] The state detection of the suction nozzle is highly required in the reclaiming process of the die bonder. How to judge the state of the suction nozzle efficiently and intelligently is particularly important. Moreover, with the continuous improvement of equipment management and control requirements, it is necessary to control the working conditions of each equipment through a host computer. [0003] At present, the state detection of the suction nozzle in the market mainly uses the analog voltage value fed back by the flow sensor in the suction nozzle, and compares the analog voltage fed back by the sensor with the comparison voltage composed of a potentiometer and a resistor, and then judges the working state of the suction nozzle, and the The value of the comparison voltage is fixed and can...

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Problems solved by technology

[0003] At present, the state detection of the suction nozzle in the market mainly uses the analog voltage value fed back by the flow sensor in the suction nozzle, and compares the analog voltage fed back by the sensor with the comparison voltage composed of a potentiometer and a resistor, and then judges the working state of the suction nozzle, and the The value of the comparison voltage is fixed and cannot be set arbitrarily, and the comparison result of the suction nozzle cannot be known by the host computer in real time

[0004] Due to the continuous use of the nozzle, there is aging phenomenon, which makes the aperture of the nozzle smaller, but the nozzle itself is still usable after the aperture is reduced, because the value of the comparison voltage is fixed, so that the monitoring circuit part cannot be further monitored, which indirectly reduces the The service life of the suction nozzle is shortened. In the current work, this type of suction nozzle is directly scrapped, which is undoubtedly very wasteful.

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