Positioning mechanism for item to be printed

Abstract

Abstract PURPOSE:To improve the stability and positoning accuracy of an item to be printed by a screen press by providing revolving elemnts to the positioning claws, which position the item to be printed, of the screen press. CONSTITUTION:A positioning claw 4 is substantially in the form of character L and its one end 8 is raised by a motive power mechanism and a bearing 7 is caused to advance and an item to be printed 2 is pushed and held between such claws. The item to be printed 2 is placed on the upper surface of a supporting base 6. One end 8 of each positioning claw 4 rises around a shaft 5 and it causes the item to be printed 2 to move to a specified position 3 through the bearing 7. At this time, changes in frictional sliding force to be caused by the variation of a relative contact point between the item to be printed 2 and the bearing 7 is absorbed by the rotation of the bearing 7 and the movement and clamp positioning of the item 2 can be smoothly carried out. Consequently, the jamming and sticking of the item 2 can be eliminated ven if the smoothness of the item to be printed 2 is poor by a certain degree and it is possible to obtain a high positioning accuracy and improve the stability of positioning.

Inventors

• 👤 Takayuki Maruyama

Bibliographic Details