| 摘要 |
PURPOSE:To enable stabilization of and regulate a conveyance speed and to permit execution of an intermediate stop, by a method wherein, through forward and reverse rotation, the stop, and control of the rotation speed of each of two motors, a vacuum pad performs vertical movement, reciprocation in the direction of a shaft Y, an intermediate stop, and the change of a conveyance speed. CONSTITUTION:Making a motor 13 run forward and reverse, vacuum adsorption pads 5, aligned to a leverform member 4, are vertically moved, and with the motor 13 stopped, each of the vacuum adsorption pads 5 is stopped to an arbitrary position. Making the motor 13 run at an equal speed, the vacuum adsorption pads 5 are vertically moved at an equal speed. Making a motor 17 run forward and reverse, a timing belt 19 is rotated forward and reversed, a timing belt 19 is rotated forward and reversed, the vacuum adsorption pads 5 are reciprocated in the direction of an axis Y through a rack and pinion mechanism 11, and making the motor 17 stop, driving in the direction of the axis Y is promptly stopped. Control of the rotation speeds of the motors 13 and 17 enables arbitrary regulation of the vacuum adsorption pads 5.
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