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Device for cleaning print heads by using ultrasonic waves

A technology of inkjet printing machine and printing head, which is applied in the direction of printing, transfer printing materials, power transmission devices, etc., and can solve the problems of inkjet printing head damage, time cost of printing machine not working, etc.

Active Publication Date: 2020-10-20
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of these solutions, however, is that in all cases this involves stationary equipment, so that the inkjet print head has to be disassembled from the machine, cleaned and reinstalled
This is very labor-intensive and thus results in press down time and corresponding costs
In addition, there is a risk of damage to the inkjet printhead during loading and unloading

Method used

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  • Device for cleaning print heads by using ultrasonic waves
  • Device for cleaning print heads by using ultrasonic waves
  • Device for cleaning print heads by using ultrasonic waves

Examples

Experimental program
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Embodiment Construction

[0024] A preferred field of application for the embodiment variant is an inkjet printer 7 . exist figure 1 is shown as an example of a basic construction for a machine 7 comprising a feeder 1 up to a receiver 3 for feeding a printing substrate 2 into a printing unit 4 in which The printing substrate 2 is printed by a printing head 5 . This is a sheet inkjet printing press 7 , which is controlled by a control computer 6 . During operation of such a printing press 7 , as already explained, individual printing nozzles in the printing head 5 in the printing unit 4 can fail.

[0025] figure 2A cleaning device 21 according to the invention is shown, which has a cleaning basin 9 filled with cleaning liquid, on which an ultrasonic drive 14 is fastened. The cleaning basin 9 has a precisely defined edge with a defined gap 11 to the surface 18 to be cleaned of the printing head 5 . The basin 9 is continuously supplied with cleaning liquid via the supply line 12 . Depending on the ...

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PUM

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Abstract

A device for cleaning print heads (5) of an inkjet printing machine (7), which comprises a sound source (14) and an application unit (9, 19), the application unit (9, 19) applying a cleaning liquid toa surface (18) of the print head (5) so that the sound source cleans the print head contactlessly by means of correspondingly introduced sound waves, which is characterized in that the device (21) isa mobile device which is designed in such a way that it can support the print heads (5) in the installed state the inkjet printing machine (7) cleans.

Description

technical field [0001] The invention discloses a cleaning device for maintaining an inkjet printing head. [0002] The present invention lies in the technical field of inkjet printing. Background technique [0003] In inkjet printers, printing heads are used which generally employ printing nozzles arranged in a row, which can also be referred to as printing beams. Here, each print head prints an ink that defines the printing color. The more different print heads an inkjet printer has, the more different printing colors it can use. In order to ensure a constant, high-value printing result in terms of quality, the printing nozzles of all printing heads used must always work with a constant performance. For this reason, regular maintenance of the print head is necessary. These maintenances mainly consist of cleaning the inkjet print head in order, for example, to prevent dried-out ink residues and other contaminants such as dust particles etc. from adhering in the nozzle ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/165
CPCB41J2/16552B41J2002/16567B41J2025/008B41J2/16585
Inventor M·波斯特尔斯S·布奇科M·沃尔夫
Owner HEIDELBERGER DRUCKMASCHINEN AG
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