CN111391505B

CN111391505B - Non-contact liquid level control ink-jet printing device

Info

Publication number: CN111391505B
Application number: CN202010322129.XA
Authority: CN
Inventors: 张承志
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-07-06
Anticipated expiration: 2040-04-22
Also published as: CN111391505A

Abstract

The invention discloses a non-contact liquid level control ink-jet printing device, which comprises an 220/24V module, a relay A, a relay B and liquid level detectors, wherein the voltage input end of the 220/24V module is connected with 220V alternating current, the voltage output end of the 220/24V module is connected with the relay A and the relay B, the relay A is also respectively connected with the liquid level detectors and a printer, the number of the liquid level detectors is 5, the liquid level detectors are arranged at different height positions on an ink bottle of the printer and used for detecting liquid level states at different heights, and the relay A solves and controls the action of the printer according to the detection of the liquid level detectors. The signal is connected with a direct current 24V relay to realize logic switching action, thereby realizing the control of the printer.

Description

Non-contact liquid level control ink-jet printing device

Technical Field

The invention relates to the technical field of printing, in particular to a non-contact liquid level control ink-jet printing device.

Background

Canon is commercially printed by a wide margin, has two models now: IX6780 and IX6880, this type printer adopt thermal foaming formula to print the principle, have print speed fast, characteristics that resolution ratio is high, and this patent has mainly made two improvements to this model: the continuous ink supply system and the non-contact liquid level control system of the ink supply system are adopted.

This large-format printer, mainly be applied to the film printing of movie house, the seal shop, printing film and hospital, this machine thick paper trafficability characteristic is very good, print fastly, the resolution ratio is high, difficult card paper, but its ink horn is only 10ML, when A3+ full width face covers the printing, only can print about 5 and will lead to the ink of one of them colour to use up and need frequently change the ink horn, not only the continuity is printed comparatively poor, lead to printing cost also very high, under the condition of using good can original dress ink, A3+ full width face covers the printing ink cost and will reach 16 yuan/piece.

The market makes a continuous ink supply refit aiming at the machine type, a 100ml ink box is additionally arranged outside the machine, ink is led into a small ink box in the machine through a connecting hose, and the representative examples include SDP-1, SDP-2A, SDP-2k and SDP-10 of Shanghai Bingzhen medical equipment Limited company, and MP5670 of Rongwei (Zhuhai) medical equipment Limited company.

Taking MP5670 of zhhai Rong Wei as an example, the ink liquid level realizes the alarm function, and the adopted contact type detection liquid level has the following 3 defects: 1. the detector is inserted into ink, so that ink leakage is easily caused in the transportation and use processes; 2. the alarm function is a 5V trumpet, the sound is small, the sound is not easy to hear in a noisy environment, and the sound can be mistaken for the sound of a mobile phone; 3. the detector is in contact type and is arranged at the bottom of the ink bottle, when the detector detects that ink is not available, a part of air actually enters a pipeline and accumulates for a long time, so that a small ink box in the machine loses siphon effect due to excessive air, the printing effect is reduced, stripes and color cast occur, and even a printing head is burnt; 4. in addition, the machine installs the ink behind the machine, and is opaque wrapping bag packing, can not observe the liquid level change, often causes the ink to empty. The working temperature of the thermal foaming type printing head is about 200 ℃, ink is not cooled, when A3+ full-width covering printing is carried out, about 10 printing sheets of printing heads are burnt, and the printing heads are core parts of the printer and account for 70% of the selling price of the whole printer.

Disclosure of Invention

The present invention is directed to a non-contact liquid level controlled inkjet printing apparatus to solve the above-mentioned problems.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a non-contact control liquid level inkjet printing device, includes 220/24V module, relay A, relay B and liquid level detector, the 220V alternating current is connected to the voltage input end of 220/24V module, relay A and relay B are connected to the voltage output end of 220/24V module, relay A still connects liquid level detector and printer respectively, liquid level detector has 5, install the different height position on the printer ink bottle, detect the not liquid level state of co-altitude, the action of control printer is solved according to liquid level detector's detection to relay A, printer pause switch and relay A are connected respectively to relay B, relay B controls relay A's action according to printer pause switch's action, and then the action of control printer.

As a further scheme of the invention: and the relay B is also connected with a 24V signal lamp.

As a further scheme of the invention: the liquid level detector is a non-contact liquid level detector.

As a further scheme of the invention: the relay A is a 24V relay.

As a further scheme of the invention: the relay B is a 24V relay.

As a further scheme of the invention: and a key switch is arranged between the 220/24V module and the 220V alternating current.

As a further scheme of the invention: the 24V signal lamp is an LED lamp.

Compared with the prior art, the invention has the beneficial effects that: the invention adopts a non-contact type liquid level control detector which is bound on the outer wall of a continuous ink supply box, the detector uses the ultrasonic principle and can penetrate through the wall of a plastic pipe, when the liquid level is lower than the emission point of the detector, a 24V high level signal is generated and is connected with a direct current 24V relay, the logic switch action is realized, and the control of a printer is further realized.

Drawings

FIG. 1 is an overall circuit diagram of the present invention.

Fig. 2 is a circuit board layout.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: referring to fig. 1-2, in an embodiment of the present invention, a non-contact liquid level control inkjet printing apparatus includes 220/24V modules, a relay a, a relay B, and a liquid level detector, a voltage input end of the 220/24V module is connected to a 220V alternating current, a voltage output end of the 220/24V module is connected to the relay a and the relay B, the relay a is further connected to the liquid level detector and the printer, the number of the liquid level detectors is 5, the liquid level detectors are installed at different height positions on an ink bottle of the printer to detect liquid level states at different heights, the relay a controls an operation of the printer according to a detection result of the liquid level detector, the relay B is connected to a printer pause switch and the relay a, and the relay B controls an operation of the relay a according to an operation of the.

And the relay B is also connected with a 24V signal lamp. The liquid level detector is a non-contact liquid level detector. The relay A is a 24V relay. The relay B is a 24V relay. A key switch is arranged between the 220/24V module and the 220V alternating current.

When the liquid level is higher than the upper part of the emission point of the non-contact liquid level detector, the relay is in a normally closed state, the pause switch stops, the printer power supply is switched on and works normally, when the liquid level is lower than the lower part of the emission point of the non-contact liquid level detector, the relay is switched off, the printer is in a pause state, and the power indicator lights flicker. At the moment, the ink still exists in the ink bottle, the cooling function of the printing head is still normal, and the printing head cannot be burnt;

after ink is added, the liquid level rises and exceeds the position above the emission point of the non-contact liquid level detector, the relay is in a normally closed state again, the pause function of the pause switch is stopped, the printer is started and works normally, and the power indicator stops flashing;

the detector is small and exquisite in size: 10 x 30mm, it is fixed on 500 ml/ink bottle, does not need to stretch into the ink bottle, safe, hygiene, the ink bottle adopts 500ml of single color, each ink bottle is greater than the ink volume of 10ml of the original printer 50 times, if there are 5 colors, have 250 bits, when A3+ full width covers and prints, basically realize adding the ink once in half a month. Moreover, the ink box is made of transparent plastic, so that workers can observe the change of the ink liquid level conveniently;

this product design has the observation window. Staff's accessible observation window observes the liquid level change, in time adds the ink to realize incessant printing. Even if the ink is carelessly forgotten to be added, the operation is suspended when the detector detects that the liquid level is low, and the printing head is protected. When ink is added and the printer continues to work, the paper or the film which is not printed can not be wasted, the printing head is always in a cooling state, the times of cleaning and maintaining the printing head are reduced, and the service life of the printing head is greatly prolonged. According to tests, in the original printing mode, the printing head leaks air and the air tightness is reduced due to frequent replacement of the ink box, the service life is about half a year to 1 year, and the service life is prolonged to more than 3 years after the printing head is improved, so that good economic benefits are generated.

Example 2: the difference from embodiment 1 is that the 24V signal lamp is an LED lamp, which has the advantages of energy saving, power saving and long service life.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a non-contact control liquid level inkjet printing device, including 220/24V module, relay A, relay B and liquid level detector, a serial communication port, the 220V alternating current is connected to the voltage input end of 220/24V module, relay A and relay B are connected to the voltage output end of 220/24V module, liquid level detector and printer are still connected respectively to relay A, liquid level detector has 5, install the not co-altitude position on the printer ink bottle, detect the not co-altitude liquid level state, the action of control printer is solved according to liquid level detector's detection to relay A, printer pause switch and relay A are connected respectively to relay B, relay B controls relay A's action according to printer pause switch's action, and then the action of control printer.

2. The inkjet printing apparatus according to claim 1, wherein a 24V signal lamp is further connected to the relay B.

3. The inkjet printing apparatus as recited in claim 1 wherein the fluid level detector is a non-contact fluid level detector.

4. The inkjet printing apparatus for noncontact fluid level control of claim 1 wherein said relay a is a 24V relay.

5. The inkjet printing apparatus for noncontact fluid level control of claim 1 wherein said relay B is a 24V relay.

6. The inkjet printing apparatus as claimed in claim 1, wherein a push button switch is provided between the 220/24V module and 220V AC.

7. The inkjet printing apparatus for non-contact liquid level control according to claim 2, wherein the 24V signal lamp is an LED lamp.