Servo ink supply system of industrial printer
A printer and ink supply technology, applied in printing and other fields, can solve the problems of high system failure rate, life and stability affecting inkjet quality, etc., and achieve the effect of low system failure rate
Pending Publication Date: 2019-07-16
SHENZHEN WINGATE INTELLIGENT SYST COMPANY
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Problems solved by technology
[0006] However, the negative pressure of the secondary ink cartridge of this invention needs to be maintained by a positive and negative pressure generator, and a solenoid valve needs to be connected between the ink outlet hole of the bottom wall of the secondary ink cartridge and the ink inlet of the top wall of the tertiary ink cartridge; the positive and negative pressure generator It needs to run for a long time, the life and stability directly affect the inkjet quality, and the system failure rate is high
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[0025] The structure and principle of the servo ink supply system of the industrial printer of the embodiment of the present invention are as follows: Figure 1 to Figure 3 As shown, it includes the main ink bottle 02, the secondary ink tank 10, the main ink pump 06, the auxiliary ink pump 07, the piezoelectric printing nozzle 12 and the control circuit.
[0026] The secondary ink cartridge 10 is installed at the highest position of the system ink path, and the main ink bottle 02 is installed at the lowest position of the system ink path. The main ink bottle 02 is connected to the secondary ink cartridge 10 through the main ink pump 06 , and the piezoelectric printing nozzle 12 is connected to the first ink outlet hole at the bottom of the secondary ink cartridge 10 . The auxiliary ink pump 07 is connected in parallel with the main ink pump 06 .
[0027] The control circuit includes a control module 16, a digital pressure switch 09 (first pressure sensor) for detecting the ai...
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The invention discloses a servo ink supply system of an industrial printer. The servo ink supply system comprises a main ink bottle, a second-stage ink box, a main ink pump and a printing spray head.A control circuit comprises a control module, a pressure sensor and a loop solenoid valve. The control end of the main ink pump is connected with the control module. The air pressure signal output endof the pressure sensor is connected with the control module. The second-stage ink box is located above the main ink bottle and is connected with the main ink bottle through a backflow pipeline, and the loop solenoid valve is connected in the backflow pipeline in series. When the negative pressure of the second-stage ink box is larger than the negative pressure upper limit, the main ink pump is started by the control module to supplement ink to the second-stage ink box. When the negative pressure of the second-stage ink box is smaller than the negative pressure lower limit, the loop solenoid valve is opened by the control module to discharge the ink in the second-stage ink box into the main ink bottle. According to the servo ink supply system, the control module controls the main ink pumpand the loop solenoid valve in real time according to signals fed back by the pressure sensor, the negative pressure of the second-stage ink box is kept within the set range of the pressure sensor allthe time, no positive pressure and negative pressure generator needs to be mounted, and the system failure rate is low.
Description
[0001] [technical field] [0002] The invention relates to an industrial printer, in particular to a servo ink supply system of an industrial printer. [0003] [Background technique] [0004] Industrial printers are often used for character printing on circuit boards. The ink bottles of the ink supply system of industrial printers are connected to the secondary ink cartridges through the ink pump. The ink bottles are responsible for storing and replenishing ink. Then the ink is sprayed through the inkjet head, because the pressure in the secondary ink tank will be unstable, and the quality of the inkjet head will be unstable. [0005] The invention with application number CN201811061601.8 discloses an ink supply system, including a control module (1), a primary ink bottle (2), a metal secondary ink cartridge (3), and a metal tertiary ink cartridge (4). The metal secondary ink cartridge (3) is provided with an ink inlet hole (31) on the side wall of the secondary ink cartridge,...
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IPC IPC(8): B41J2/175
CPCB41J2/17509B41J2/17556B41J2/17566B41J2002/17576
Inventor 钱彬杨晓东吴帅冯玉峰吴玙洁
Owner SHENZHEN WINGATE INTELLIGENT SYST COMPANY