Variable-frequency spin dryer

Abstract

The invention discloses chip drying treatment equipment in the field of electron component production and particularly relates to a variable-frequency spin dryer. The variable-frequency spin dryer comprises a rack, a rotary drum, a motor and a variable-frequency controller, wherein the rotary drum is arranged on the rack; the rotary drum is driven by the revolving shaft of the motor to rotate; the motor is controlled by the variable-frequency controller to rotate. The variable-frequency spin dryer is characterized in that the motor is an alternating-current motor; the revolving speed of the motor is controlled through the variable-frequency controller by adjusting the frequency of an output power supply; the rotary drum is vertical, and is provided with a dewatering cavity; a nitrogen connecting pipe is arranged above the rotary drum; one end of the nitrogen connecting pipe is arranged in the cavity of the rotary drum, and the other end of the nitrogen connecting pipe is connected with a gas source through an electromagnetic valve; an exhalent siphon is arranged at the central part of the bottom part of the rotary drum. The variable-frequency spin dryer disclosed by the invention has the advantages that operation is reliable, the failure rate is low, the speed is displayed in real time, stepless speed regulating is realized and the like.

Description

technical field [0001] The invention relates to chip drying processing equipment in the field of electronic component production, and a frequency conversion drying machine. Background technique [0002] In the production process of semiconductor electronic components, the chemically treated tube cores must be cleaned after they are placed on the table, and the cleaned tube cores can be assembled and sintered after being dried by a dryer. There are following problems in existing drying machine: [0003] 1) Due to the DC motor used, the carbon brush machine is easy to wear, often sparking, and burning out the carbon brush and rotor; [0004] 2) The speed can only be adjusted roughly by adjusting the voltage, and the closed-loop program control speed cannot be realized, and the speed is unstable; [0005] 3) Additional speed measuring and braking components are required, and the failure rate is high. [0006] Because the drying machine is an indispensable equipment in th...

AI Technical Summary

Problems solved by technology

[0003] 1) Due to the DC motor used, the carbon brush machine is easy to wear, often sparking, and burning out the carbon brush and rotor;

[0004] 2) The speed can only be adjusted roughly by adjusting the voltage, and the closed-loop program control speed cannot be realized, and the speed is unstable;

[0005] 3) Additional speed measuring and braking components are required, and the failure rate is high

[0006] Because the drying machine is an indispensable equipment in the process, its frequency of use is high, and the frequent failure of the equipment seriously affects the normal operation of production

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