Inker assembly for cylindrical can decorators
First Claim
1. A cylindrical can decorator inker assembly, said inker assembly conveying ink from an ink fountain assembly to a plate cylinder, wherein said ink fountain assembly comprises a fountain well, a fountain roll and a ductor roll, and wherein said plate cylinder comprises an image plate rotated against a blanket roll, said inker assembly comprising:
- a non-oscillating first transfer roll intermittently contacted by said ductor roll of said ink fountain assembly;
a non-oscillating distributor roll in contact with said first transfer roll;
a non-oscillating second transfer roll in contact with said non-oscillating distributor roll;
a first axially oscillating distributor roll and a second axially oscillating distributor roll, both in contact with said second transfer roll;
a non-oscillating third transfer roll in contact with said first and second axially oscillating distributor rolls;
a first non-oscillating form roll and a second non-oscillating form roll, both in contact with said third transfer roll and with said image plate of said plate cylinder; and
a first axially oscillating ghost chaser roll in contact with said first non-oscillating form roll and a second axially oscillating ghost chaser roll in contact with said second non-oscillating form roll.
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Accused Products
Abstract
A cylindrical can decorator inker assembly having a non-oscillating first transfer roll, a non-oscillating second transfer roll and a non-oscillating third transfer roll, and further having axially oscillating distributor and ghost chaser rolls to prevent ghosting on the decorated cans. The inker assembly preferably has an improved oscillator drive assembly, oscillating roll structure, transfer roll structure and inker assembly mount.
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Citations
15 Claims
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1. A cylindrical can decorator inker assembly, said inker assembly conveying ink from an ink fountain assembly to a plate cylinder, wherein said ink fountain assembly comprises a fountain well, a fountain roll and a ductor roll, and wherein said plate cylinder comprises an image plate rotated against a blanket roll, said inker assembly comprising:
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a non-oscillating first transfer roll intermittently contacted by said ductor roll of said ink fountain assembly; a non-oscillating distributor roll in contact with said first transfer roll; a non-oscillating second transfer roll in contact with said non-oscillating distributor roll; a first axially oscillating distributor roll and a second axially oscillating distributor roll, both in contact with said second transfer roll; a non-oscillating third transfer roll in contact with said first and second axially oscillating distributor rolls; a first non-oscillating form roll and a second non-oscillating form roll, both in contact with said third transfer roll and with said image plate of said plate cylinder; and a first axially oscillating ghost chaser roll in contact with said first non-oscillating form roll and a second axially oscillating ghost chaser roll in contact with said second non-oscillating form roll. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A cylindrical can decorator inker assembly, said inker assembly conveying ink from an ink fountain assembly to a plate cylinder, wherein said ink fountain assembly comprises a fountain well, a fountain roll and a ductor roll, and wherein said plate cylinder comprises an image plate rotated against a blanket roll, said inker assembly comprising:
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a non-oscillating first transfer roll intermittently contacted by said ductor roll of said ink fountain assembly, a non-oscillating second transfer roll and a non-oscillating third transfer roll; at least one distributor roll in contact with said first and second transfer rolls; at least another one distributor roll in contact with said second and third transfer rolls; at least one form roll in contact with said third transfer roll and said image plate of said plate cylinder; at least one ghost chaser roll in contact with said at least one form roll; wherein at least one of said distributor rolls and said ghost chaser roll axially oscillates; and said at least another one distributor roll in contact with said second and third transfer rolls axially oscillates and said ghost chaser roll axially oscillates. - View Dependent Claims (14, 15)
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Specification