Printing apparatus having plate discharge mechanism with air blowing unit
AssigneeDainippon Screen Mfg. Co., Ltd.
InventorKenji Edamitsu
Life of this patent
Estimating the term…
Abstract
A plate discharger includes a peeling claw, a transport device and an air blowing device. The transport device has a rotary shaft, first transport rollers rotatable about the rotary shaft, a driven rotary shaft connected to a drive gear meshed with and driven by a transmission gear disposed sideways from the first transport rollers, second transport rollers rotatable about the driven rotary shaft, peeling rollers pivotable about the rotary shaft, and belts wound around the first transport rollers and peeling rollers. When a printing plate is passed between the first transport rollers and second transport rollers, the air blowing device blows air to the undersurface of the printing plate.
Claims20
A printing apparatus having a plate discharge mechanism for removing used printing plates mounted peripherally of a plate cylinder from the plate cylinder, and discharging the printing plates to a plate discharge station that successively stores the printing plate as stacked one after another, said plate discharge mechanism comprising:
- a transport unit configured for passing said printing plates through a transport path disposed between said plate cylinder and said plate discharge station to discharge said printing plates to said plate discharge station;
- and
- an air blowing unit configured for blowing air to an undersurface of each of the printing plates passing through said transport path, wherein
- said transport unit includes:
- a rotary shaft;
- a first transport roller rotatable about said rotary shaft;
- a second transport roller rotatable synchronously with rotation of said first transport roller and arranged to pinch said printing plates with said first transport roller;
- and
- a push-up unit arranged in substantially the same position as or downstream of said first transport roller with respect to a direction of transport of said printing plates, for pushing up transversely opposite ends of said printing plates.
A printing apparatus having a plate discharge mechanism for removing used printing plates mounted peripherally of a plate cylinder from the plate cylinder, and discharging the printing plates to a plate discharge station that successively stores the printing plate as stacked one after another, said plate discharge mechanism comprising:
- a transport unit configured for passing said printing plates through a transport path disposed between said plate cylinder and said plate discharge station to discharge said printing plates to said plate discharge station;
- and
- an air blowing unit for blowing air to an undersurface of each of the printing plates passing through said transport path, wherein
- said transport unit includes:
- a rotary shaft;
- a first transport roller rotatable about said rotary shaft, and having a larger diameter at opposite ends than in an intermediate portion thereof transversely of said printing plates;
- and
- a second transport roller rotatable synchronously with rotation of said first transport roller and arranged to pinch said printing plates with said first transport roller in portions of said printing plates between said opposite ends of said first transport roller.
Dependencies are inferred from the claim text.