14-09-2011 дата публикации
Номер: CN0102179837A
Принадлежит:
The invention discloses a semi-automatic hole puncher for producing plastic dropping labels, comprising a base and a frame body arranged on the base. The semi-automatic hole puncher is characterized in that: an air cylinder is arranged on the frame body, a hole punching rod is connected at the bottom of the air cylinder, a guide hole is correspondingly arranged on the base below the hole punching rod, two vacuum inlet holes are arranged in the air cylinder, one foot pedal switch is arranged at one side of the frame body, a solenoid valve is arranged in the foot pedal switch, two vacuum outlet holes and an air-path vacuum hole are arranged on the foot pedal switch, the solenoid valve is connected with the vacuum outlet holes, the two vacuum inlet holes are respectively connected with the two vacuum outlet holes by a pipeline, and an air-path vacuum hole is connected with an air source pipeline. In the invention, the air cylinder is controlled by the solenoid valve in the foot pedal switch ...
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