Lightweight portable compact universal printer coater

• US 6,612,234 B2
• Filed: 05/01/2001
• Issued: 09/02/2003
• Est. Priority Date: 05/01/2001
• Status: Expired due to Fees

• Current Assignee: Printing Research, Inc.
• Original Assignee: Howard W. Demoore
• Inventors: Hess, Max W.
• Primary Examiner(s): Eickholt, Eugene H.
• Application Number:
  US09/846,663
• Publication Number:
  US 20020178944A1
• Time in Patent Office: 854 Days
• Field of Search: 101/216, 101/479, 101/232, 101/364, 101/350.1, 101/367, 101/152, 101/363, 101/181, 101/408, 101/177, 118/46, 118/126, 118/258
• US Class Current: 101/216
• CPC Class Codes: B41F 22/00 Means preventing smudging of machine parts or printed articles B41F23/00 takes precedence
• CPC Class Codes: B41F 23/08 Print finishing devices, e.g. for glossing prints B41F23/005 takes precedence

Abstract

A lightweight portable compact flexographic universal printer coater adaptable to printing units on the same press or other presses of the same nominal printing width. The printer coater has a frame which comprises an anilox roller, a means to rotate the anilox roller at or near the surface speed of the rotating printing surface, a liquid film supply for replenishing the liquid film on the surface of the anilox roller, and a positioner device to place the printer coater between the on and off-impression positions. The printer coater apparatus is placed onto at least one pair of fixed supports mounted on the printing press frame so that the positioner apparatus can place the printer coater between an on and off-impression position. Spacers of selected widths may be mounted between the fixed supports and the interior surfaces of the press frame to compensate for slightly varying press frame widths associated with different press manufacturers. In the alternative, fixed supports may be manufactured in different widths and mounted on the interior surface of the press frame to avoid the use of spacers. The printer coater is portably liftable into and out of position from the printing press frame and easily transportable to any printing unit of a multiple unit rotary offset lithographic printing press or other rotary offset lithographic presses of the same nominal printing width.

Claims

1. A lightweight portable compact printer coater that can be handily moved to any printing unit on a rotary offset printing press having a plurality of printing units, or to any other press of the same nominal printing width, the printer coater apparatus comprising:

a self-contained printer coater apparatus having a movable frame holding an applicator roller capable of applying a liquid film to a rotating printing surface, a means for driving the applicator roller at or near the surface speed of the rotating printing surface and a liquid film supply for replenishing the liquid film on the surface of the applicator roller;

at least one pair of fixed supports for mounting on the frame of a printing unit of a rotary offset printing unit adjacent to a rotating printing surface used in printing, said supports comprising a fixed drive side support and a fixed operator side support;

the printer coater apparatus having a drive side and an operator side wherein the drive side has a side member which removably engages the fixed drive side support and the operator side has a side member which removably engages the fixed operator side support;

the printer coater being portably liftable into and out of position wherein the drive side and operator side supports and the respective fixed drive side and fixed operator side supports are removably engaged and the apparatus is movable between an off impression position and an on impression position wherein the applicator roller is in liquid film transfer contact with the rotating printing surface; and

wherein the printer coater is portably installable and reinstallable to or from a rotary printing unit on a printing press equipped with said fixed supports thereby being portable for temporary use on a printing press.

2. The lightweight portable compact printer coater of claim 1 wherein said at least one pair of fixed supports comprises a first pair of fixed supports for mounting on the frame of one rotary offset printing unit and a second pair of fixed supports for mounting on the frame of another rotary offset printing unit so that the printer coater apparatus can be moved and removably installed or reinstalled on any rotary offset printing unit.

3. The lightweight portable compact printer coater of claim 1 wherein the applicator roller comprises an anilox roller and a chambered doctor associated with the anilox roller to provide the liquid film supply for replenishing the liquid film on the surface of said roller.

4. The lightweight portable printer coater of claim 3 wherein the chambered doctor associated with the anilox roller includes a brushing means which contacts said anilox roller as it turns.

5. The lightweight portable compact printer coater of claim 3 wherein the applicator roller comprises a lightweight anilox roller made of a non-metallic composite material having a wear resistant anilox surface for applying printing ink or coating material.

6. The lightweight portable printer coater of claim 5 wherein the chambered doctor associated with the anilox roller includes a brushing means which contacts said anilox roller as it turns.

7. The lightweight portable compact printer coater of claim 5 wherein the non-metallic composite anilox roller is journaled into the side members of the apparatus at the drive side and operator side and said means for driving is a remotely controlled motor mounted on the frame of the coater printer apparatus.

8. The lightweight portable compact printer coater of claim 1 wherein a lock-on member releaseably connects the frame of the printer coater apparatus with the fixed supports and serves as an anchor for relative movement of the printer coater as it is moved between the on and the off impression positions.

9. The lightweight portable compact printer coater of claim 8 wherein an adjustable on-stop mounted on the frame of the printer coater cooperates with a stop surface on the fixed supports to establish the on impression position of the apparatus.

10. The lightweight portable compact printer coater of claim 9 wherein the said stop surface is sloped to remove any looseness between the printer coater apparatus and the fixed support when the printer coater apparatus is in the on-impression position.

11. The lightweight portable compact printer coater of claim 9 wherein a remotely controlled positioner carried by the frame of the printer coater apparatus moves the apparatus between the off impression and on impression position.

12. The lightweight portable compact printer coater of claim 9 wherein the lock-on member comprises a drive side lock-on member and an operator side lock-on member and wherein the positioner is connected via pivoting links with the drive side and operator side lock-on members.

13. The lightweight portable compact printer coater of claim 12 wherein the applicator roller comprises a lightweight anilox roller made of a non-metallic composite material having a wear resistant anilox surface for applying printing ink or coating material.

14. The lightweight portable compact printer coater of claim 12 wherein the frame of the printer coater apparatus is provided with spaced apart hand holds which facilitate manual portability of the apparatus from one printing unit to any other printing unit.

15. The lightweight portable compact printer coater of claim 14 wherein the printer coater apparatus is provided with fluid transfer lines having quick disconnect fittings.

16. The lightweight portable compact printer coater of claim 13 further including a rotary offset printing press having a plurality of rotary offset printing units each having a frame and a plate cylinder, a blanket cylinder and an impression cylinder supported for rotation in operable combination for lithographic printing of substrate passing through the printing units from the feed side to the delivery side wherein the fixed supports are mounted on the frame of one printing unit which is not the last printing unit and the self-contained printer coater apparatus is mounted thereon in a manner that permits printing or coating substrate passing through the printing unit by means of the printer coater apparatus without altering the lithographic printing capabilities of the printing unit on which the printer coater apparatus is mounted.

17. The lightweight portable compact printer coater of claim 16 wherein the fixed supports are mounted on the frame of said rotary offset printing unit at a location which permits the printer coater apparatus to be on impression with the blanket cylinder of said printing unit.

18. The lightweight portable compact printer coater of claim 16 wherein the fixed supports are mounted on the frame of said rotary offset printing unit at a location which permits the printer coater apparatus to be on impression with the plate cylinder of said printing unit.

19. The lightweight portable compact printer coater of claim 16 wherein a second pair of fixed supports are mounted respectively on the drive side and the operator side of another rotary offset printing unit of said rotary offset printing press and the self-contained printer coater apparatus can be moved from a printing/coating operation on said one rotary offset printing unit to said another rotary offset printing unit by lifting and carrying the printer coater apparatus from said one printing unit to said another printing unit.

20. The lightweight portable compact printer coater of claim 1 wherein a pair of spacers are mounted between the said pair of fixed supports and the press frame and are used to adapt said fixed supports to said press having different between frame spacing.

21. The lightweight portable compact printer coater of claim 1 wherein the said at least one pair of fixed supports comprises at least one additional pair of fixed supports having a different width than said at least one pair of fixed supports where that different width is selected to adapt the printer coater to a press having different between frame spacing.

22. A lightweight portable compact printer coater in combination with a rotary offset printing press having a plurality of offset printing units, the printer coater apparatus comprising:

a rotary offset printing press having a frame and a plurality of printing units each having a plate cylinder, a blanket cylinder, and an impression cylinder supported for rotation in operable combination wherein the surface on the plate cylinder and the surface on the blanket cylinder are rotating printing surfaces, the printing units having a delivery side and a feeder side opposite the delivery side and an inter-unit operator space between printing units;

a self-contained printer coater apparatus having an applicator roller capable of applying a liquid film to a rotating printing surface, a means for driving the applicator roller at or near the surface speed of the rotating printing surface and a liquid film supply for replenishing the liquid film on the surface of the applicator roller;

at least one pair of fixed supports mounted on the frame of a printing unit of said rotary offset printing press adjacent to a rotating printing surface used in printing, said supports comprising a fixed drive side support and a fixed operator side support;

the printer coater apparatus having a frame, a drive side and an operator side wherein the drive side has a side member which removably engages the fixed drive side support and the operator side has a side member which removably engages the fixed operator side support;

a positioner device carried by the frame of the printer coater apparatus to move the printer coater apparatus between an on impression position and an off impression position whereby while the coater is in the on impression position the applicator roller is in liquid film transfer relationship with the rotating printing surface;

the printer coater being portably liftable into and out of engagement with the fixed drive side and fixed operator side supports;

wherein the printer coater is removably installable and reinstallable to or from any printing unit on the rotary offset printing press equipped with said fixed supports, or to any other press of the same nominal printing width equipped with said fixed supports, thereby being portable for temporary use on the printing press.

23. The lightweight portable compact printer coater of claim 22 wherein said at least one pair of fixed supports comprises a first pair of fixed supports mounted on the frame of the printing unit and a second pair of fixed supports mounted on the frame of another printing unit so that the printer coater apparatus can be portably moved and removably installed on different printing units.

24. The lightweight portable compact printer coater of claim 22 wherein the applicator roller comprises an anilox roller and a chambered doctor associated with the anilox roller to provide the liquid film supply for replenishing the liquid film on the surface of said roller.

25. The lightweight portable compact printer coater of claim 24 wherein said printer coater apparatus further comprises a positioning stop member to place the surface of the anilox roller at an adjustable distance adjacent to the rotating printing surface in an operating position and a parallel locking member to prevent the coater from moving from the operating position.

26. The lightweight portable compact printer coater of claim 22 wherein the positioner device further comprises an actuator connected to at least a pair of pivoting members by a rigid link wherein actuation of the actuator causes the link to act on the pivoting members to engage the coater apparatus into the on impression position to supply liquid to the rotating printing surface or to disengage the coater apparatus into the off impression position.

27. The lightweight portable compact printer coater of claim 26 wherein the applicator roller comprises a lightweight anilox roller made of a non-metallic composite material having a wear resistant anilox surface for applying printing ink or coating material.

28. The lightweight portable compact printer coater of claim 26 wherein the actuator is pneumatically operated.

29. The lightweight portable compact printer coater of claim 26 wherein the actuator is hydraulically operated.

30. The lightweight portable compact printer coater of claim 26 wherein the actuator is electrically operated.

31. The lightweight portable compact printer coater of claim 27 wherein the drive side member and operator side member have a handle to lift and carry the printer coater into and out of position.

32. The lightweight portable compact printer coater of claim 22 wherein the rotating printing surface is the blanket cylinder and the printer coater is located on the feeder side.

33. The lightweight portable compact printer coater of claim 22 wherein the rotating printing surface is the blanket cylinder and the printer coater is located on the delivery side.

34. The lightweight portable compact printer coater of claim 22 wherein the rotating printing surface is the plate cylinder.

35. The lightweight portable compact printer coater of claim 22 wherein the liquid film supply for replenishing the liquid film on the surface of the applicator roller is attached by quick connect and disconnect mechanisms.

36. The lightweight portable compact printer coater of claim 22 wherein the said at least one pair of fixed supports comprises at least one additional pair of fixed supports having a different width than said at least one pair of fixed supports where that different width is selected to adapt the printer coater to a press having different between frame spacing.

37. The lightweight portable compact printer coater of claim 36 wherein a pair of spacers are mounted between the said pair of fixed supports and the press frame and are used to adapt said fixed supports to said press having different between frame spacing.

38. The lightweight portable compact printer coater of claim 37 wherein the pair of fixed supports further comprise slots to receive drive side and operator side side members and to slideably engage said side members thereby supporting and aligning the printer coater with the rotating printing surface.

39. The lightweight portable compact printer coater of claim 38 wherein the pair of fixed supports further comprises a stop surface to receive and engage the positioning stop member to stop forward movement of the printer coater apparatus when moving the printer coater to the on impression position.

40. The lightweight portable compact printer coater of claim 39 wherein the said stop surface is sloped to remove any looseness between the printer coater apparatus and the fixed supports when the printer coater apparatus is in the on-impression position.

41. The lightweight portable compact printer coater of claim 40 wherein the pair of fixed supports further include chambers to receive and lock the locking member to hold the printer coating apparatus in operating position.

42. A lightweight portable compact printer coater for movement to any printing unit on a rotary offset printing press having a plurality of rotary offset printing units, the printer coater apparatus comprising:

a printer coater apparatus having an applicator roller capable of applying a liquid film to a rotating printing surface, a means for driving the applicator roller at or near the surface speed of the rotating printing surface and a liquid film supply for replenishing the liquid film on the surface of the applicator roller;

at least one pair of fixed supports for mounting the printer coater on the frame of a printing unit of a rotary offset printing press with the surface of the applicator roller adjacent to the rotating printing surface, the fixed supports comprising a fixed drive side support and a fixed operator side support;

the printer coater apparatus having a frame, a drive side and an operator side wherein the drive side has a drive side member which removably engages the fixed drive side support and the operator side has an operator side member which removably engages the fixed operator side support;

an actuator device carried by the frame of the coater apparatus to move the coater apparatus between an on impression position and an off impression position whereby while the coater is in the on impression position the applicator roller touches the rotating printing surface;

the printer coater being portably liftable into and out of operating position wherein the drive side and operator side supports and the respective fixed drive side and operator side supports are removably engaged and where the surface of the applicator roller can be placed in liquid film transfer contact with the rotating printing surface;

wherein the printer coater is removably installable and reinstallabe to or from a rotary printing unit on the printing press equipped with said fixed supports thereby being portable for temporary use on a printing press.

43. The lightweight portable compact printer coater of claim 42 wherein said at least one pair of fixed supports comprises a first pair of fixed supports for mounting on the frame of one rotary offset printing unit and at least a second pair of fixed supports for mounting on the frame of another rotary offset printing unit so that the printer coater apparatus can be moved and removably installed on any rotary offset printing unit on which said at least a second pair of fixed supports is mounted.

44. The lightweight portable compact printer coater of claim 42 wherein the applicator roller comprises an anilox roller and a chambered doctor associated with the anilox roller to provide the liquid film supply for replenishing the liquid film on the surface of said roller.

45. The lightweight portable compact printer coater of claim 44 wherein the applicator roller comprises a lightweight anilox roller made of a non-metallic composite material having a wear resistant anilox surface for applying printing ink or coating material.

46. The lightweight portable compact printer coater of claim 45 wherein the chambered doctor associated with the anilox roller includes a brush for brushing the lightweight anilox roller.

47. The lightweight portable compact printer coater of claim 42 wherein the side supports further comprise a positioning stop member to place the printer coater at an adjustable distance adjacent to the rotating printing surface in an operating position and a releasable locking member to prevent the printer coater from moving from the operating position.

48. The lightweight portable compact printer coater of claim 42 wherein the actuator device further comprises an actuator device connected to at least a pair of pivoting members by a rigid link wherein actuation causes the link to act on the pivoting members to actuate the coater apparatus into the on impression position to supply liquid to the rotating printing surface or to actuate the coater apparatus into the off impression position to stop supplying liquid to the rotating printing surface.

49. The lightweight portable compact printer coater of claim 48 wherein the actuator device is pneumatically operated.

50. The lightweight portable compact printer coater of claim 48 wherein the actuator device is hydraulically operated.

51. The lightweight portable compact printer coater of claim 48 wherein the actuator device is electrically operated.

52. The lightweight portable compact printer coater of claim 42 wherein the drive side member and operator side member have a handle to lift and carry the printer coater into and out of position.

53. The lightweight portable compact printer coater of claim 42 wherein the rotating printing surface is a blanket cylinder and the printer coater is mounted on the feeder side.

54. The lightweight portable compact printer coater of claim 42 wherein the rotating printing surface is a blanket cylinder and the printer coater is mounted on the delivery side.

55. The lightweight portable compact printer coater of claim 42 wherein the rotating printing surface is a plate cylinder.

56. The lightweight portable compact printer coater of claim 42 wherein the liquid film supply for replenishing the liquid film on the surface of the applicator roller is attached by quick connect and disconnect mechanisms.

57. The lightweight portable compact printer coater of claim 42 wherein the pair of fixed supports have slots to receive the drive side member and the operator side member to engage the side members of the printer coater thereby supporting and aligning the printer coater with the rotating plate or blanket.

58. The lightweight portable compact printer coater of claim 57 wherein the pair of fixed supports further comprise stop surfaces to receive and engage the positioning stop member to stop the forward movement of the coater apparatus when moving the coater to the on impression position in response to activation of the actuator device.

59. The lightweight portable compact printer coater of claim 58 wherein the said stop surface is sloped to remove any looseness between the printer coater apparatus and the fixed supports when the printer coater apparatus is in the on-impression position.

60. The lightweight portable compact printer coater of claim 57 wherein each of the pair of fixed supports further comprises a chamber to receive and lock the locking member to prevent the coating apparatus from moving from the operating position.

61. The lightweight portable compact printer coater of claim 60 wherein the said at least one pair of fixed supports comprises at least one additional pair of fixed supports having a different width than said at least one pair of fixed supports where that different width is selected to adapt the printer coater to a press having different between frame spacing.

62. The lightweight portable compact printer coater of claim 61 wherein a pair of spacers are mounted between the said pair of fixed supports and the press frame and are used to adapt said fixed supports to said press having different between frame spacing.

63. A lightweight portable compact printer coater that can be handily moved to any printing unit on a rotary offset printing press having a plurality of printing units, or to any other press of the same nominal printing width, the printer coater apparatus comprising:

a self-contained printer coater apparatus having a movable frame holding an applicator roller capable of applying a liquid film to a rotating printing surface, a means for driving the applicator roller at or near the surface speed of the rotating printing surface and a liquid film supply for replenishing the liquid film on the surface of the applicator roller;

at least one pair of fixed supports for mounting on the frame of a printing unit of a rotary offset printing unit adjacent to a rotating printing surface used in printing, said supports comprising a fixed drive side support and a fixed operator side support;

the printer coater apparatus having a drive side and an operator side wherein the drive side has a side member which removably engages the fixed drive side support and the operator side has a side member which removably engages the fixed operator side support;

at least one pair of spacers wherein the said pair of spacers are mounted between the said pair of fixed supports and press frame to adapt said fixed supports to said press having different between frame spacing;

the printer coater being portably liftable into and out of position wherein the drive side and operator side supports and the respective fixed drive side and fixed operator side supports are removably engaged and the apparatus is movable between an off impression position and an on impression position wherein the applicator roller is in liquid film transfer contact with the rotating printing surface; and

wherein the printer coater is portably installable and reinstallable to or from a rotary printing unit on a printing press equipped with said fixed supports thereby being portable for temporary use on a printing press.