摘要 |
An automatic printing apparatus is used to print indentifying words on a packing case that is carried on a conveyer belt unit and includes a sensor, a lower support unit, a lengthwise-position adjustment device, an upper support unit, a height adjustment device, a feeding hydraulic cylinder, a printer support unit, a contact switch, a printing hydraulic cylinder and a printer member. The printer member is carried on the printer support unit. The printer support unit is carried on the upper support unit. The upper support unit is carried on the lower support unit. The lengthwise-position adjustment device can be actuated to adjust the position of the lower support unit along the length of the conveyer belt unit. The height adjustment device can be actuated to adjust the vertical position of the upper support unit relative to the lower support unit. When the packing case is moved to align with the sensor, the sensor activates the feeding hydraulic cylinder so as to move the printer support unit toward the packing case.
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