Mounting device for a print head, a mounting assembly and a printing system

Patent metadata

Field	Value
Publication number	US-10632773-B2
Application number	US-201815921722-A
Country	US
Kind code	B2
Filing date	Mar 15, 2018
Priority date	Apr 25, 2017
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

A mounting device for a print head and a printing system allows print heads to be easily changed and easily and reliably adjusted. The mounting device includes a rigid mount and a frame for receiving a print head. The frame is releasably fixed to the rigid mount and includes an adjustment device for adjusting the print head relative to the rigid mount. The adjustment device of the frame includes two solid body joints and two actuators for adjusting the print head in two degrees of freedom, namely in a sliding movement along the rigid mount and a rotary movement about the vertical axis.

First claim

The invention claimed is:

1. A mounting device for a print head, the mounting device comprising:
a rigid mount; and
a frame for receiving the print head, said frame releasably fixed to said rigid mount and said frame having an adjustment device for adjusting the print head relative to said rigid mount, said adjustment device of said frame having two solid body joints and two actuators for adjusting the print head in two degrees of freedom, including a translatory movement along said rigid mount and a rotary movement about a vertical axis, said actuator for the translatory movement along said rigid mount being disposed on an axis of rotation of said frame for the rotary movement of the print head about the vertical axis.

2. The mounting device according to claim 1 , wherein an adjustment of the print head occurs without any height change of the print head.

3. The mounting device according to claim 1 , wherein said frame surrounds the print head at lateral outer surfaces of the print head.

4. The mounting device according to claim 1 , wherein said frame includes a stationary element fixed to said rigid mount and a further element that is deformable by means of said adjustment device.

5. The mounting device according to claim 4 , wherein said actuators are fixed to said stationary element of said frame and do not change their positions during adjustment movements.

6. The mounting device according to claim 1 , wherein a first of said solid body joints is a solid body rotary joint and a second of said solid body joints is a parallelogram joint.

7. The mounting device according to claim 1 , wherein said frame has two reset springs for counteracting an adjustment in the two degrees of freedom.

8. The mounting device according to claim 1 , wherein said actuators are cone drives.

9. The mounting device according to claim 1 , wherein said frame is manufactured in an additive manufacturing process.

10. The mounting device according to claim 1 , wherein the print head is an inkjet print head.

11. A mounting assembly, comprising:
a plurality of mounting devices each having a rigid mount and a frame for receiving a respective print head, said frame releasably fixed to said rigid mount and said frame having an adjustment device for adjusting the respective print head relative to said rigid mount, said adjustment device of said frame having two solid body joints and two actuators for adjusting the respective print head in two degrees of freedom, including a translatory movement along said rigid mount and a rotary movement about a vertical axis, said actuator for the translatory movement along said rigid mount being disposed on an axis of rotation of said frame for the rotary movement of the print head about the vertical axis, the print heads disposed adjacent to one another defining a print bar.

12. A printing system, comprising:
a plurality of print heads; and
a mounting assembly containing a plurality of mounting devices each having a rigid mount and a frame for receiving one of said print heads, said frame releasably fixed to said rigid mount and said frame having an adjustment device for adjusting said one print head relative to said rigid mount, said adjustment device of said frame having two solid body joints and two actuators for adjusting said one print head in two degrees of freedom, including a translatory movement along said rigid mount and a rotary movement about a vertical axis, said actuator for the translatory movement along said rigid mount being disposed on an axis of rotation of said frame for the rotary movement of the print head about the vertical axis, said print heads disposed adjacent to one another defining a print bar.

Assignees

• Heidelberger Druckmasch Ag

Inventors

• Mueller Andreas
• Wolf Burkhard

Classifications

• B41J25/304 Primary

  Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface · CPC title

• B41J2202/14

  Mounting head into the printer · CPC title

• B41J29/02 Primary

  Framework · CPC title

• B41J2/155

  for line printing · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title