Ejected master plate processing device for a stencil printing device
AssigneeRiso Kagaku Corporation
InventorsTakanori Hasegawa, Akira Yasuda
Life of this patent
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Abstract
To positively compress ejected master plates at a high compression ratio without requiting any complex structure, a piston member for compressing ejected master plates is placed in an ejected master plate box for receiving ejected master plates from an ejected master plate receiving inlet so as to be moveable between a first position and a second position, and the movement of the piston member toward the second position causes the stencil master plates to be compressed against an end wall of the ejected master plate box. The piston member is provided with a motor-driven suction fan which draws air out of the ejected master plate box to move the piston member toward the second position, and is biased toward the first position by a spring member.
Claims10
An ejected master plate processing device for a stencil printing device, comprising:
- an ejected master plate box including an ejected master plate receiving inlet provided in a side wall thereof, and an end wall provided in an axial end thereof;
- a piston member slidably disposed in said ejected master plate box so as to be axially moveable between a first position remote from said end wall and a second position adjacent to said end wall, passing said ejected master plate receiving inlet, a front end of said piston member defining a compression chamber in cooperation with said side wall and end wall of said ejected master plate box;
- a suction fan provided in said piston member for drawing air out of said compression chamber;
- drive control means for actuating said suction fan so as to create a negative pressure in said compression chamber, and move said piston member from said first position to said second position by virtue of said negative pressure;
- and
- return means for returning said piston member from said second position to said first position;
- whereby an ejected master plate introduced into said ejected master plate box from said ejected master plate receiving inlet is compressed between said front end of said piston member and said end wall of said ejected master plate box as said piston member is moved to said second position by said negative pressure created by said suction fan.
Dependencies are inferred from the claim text.