WO2020134057A1

WO2020134057A1 - Printer nozzle cleaning and ink misting suction device

Info

Publication number: WO2020134057A1
Application number: PCT/CN2019/097669
Authority: WO
Inventors: 温干前; 彭钜欢; 覃立宇; 林锦袁
Original assignee: 广东科达洁能股份有限公司
Priority date: 2018-12-26
Filing date: 2019-07-25
Publication date: 2020-07-02
Also published as: CN111361292B; CN111361292A

Abstract

A printer nozzle cleaning and ink misting suction device, comprising a nozzle cleaning crossbeam component, an ink receiving component, an air suction groove component (6), an air suction switching valve component (9), and a centrifugal fan (14). The ink receiving component comprises a plurality of ink receiving trays (2), and the ink receiving trays (2) are fixed onto an ink receiving tray collecting tube (19). An ink receiving tray component is accommodated between head channels, the space of the whole machine is effectively used and the length of the whole machine is shortened. The air suction groove component (6) and the ink receiving tray component are fixed in a complete set manner, the weight of head lifting is reduced, and the load of a lifting motor is lightened. The device further comprises a gas-liquid separation tank (13), all ink is uniformly collected into the gas-liquid tank for treatment, and then treated gas is discharged to the atmosphere by means of the centrifugal fan (14), thus reducing the environmental pollution.

Description

Printer nozzle cleaning and ink absorption device

Technical field

The invention relates to the field of ceramic inkjet printers, in particular to a printer nozzle cleaning and ink-absorbing device.

Background technique

The ink receiving tray of the existing inkjet printer is divided into two pieces, and the starting positions are on the left and right sides of the machine head. When the ink needs to be received, the power source drives the synchronous belt, and the synchronous belt drives the ink receiving tray from the two sides of the machine to the bottom of the nozzle for ink receiving, which lengthens the length of the whole machine. In addition, the ink receiving tray uses a synchronous belt to pull the ink from the two sides of the machine to the bottom of the nozzle for a long distance. The overall design is complicated, the cost is high, the stability is low, and the stroke is long, which increases the time required for the cleaning process;

In addition, the suction slot is fixed on the machine head and lifts at the same time as the machine head assembly, increasing the weight of the machine head, thereby increasing the load of the lifting motor; in addition, the flying ink collected from the suction slot and the ink receiving tray is uniformly sucked into the concentration tank The gas is discharged into the atmosphere through the fan, which will pollute the environment.

Summary of the invention

The invention provides a printer nozzle cleaning and ink-flying device, which includes a nozzle cleaning beam assembly, an ink receiving assembly, an air suction slot assembly, an air suction switching valve assembly and a centrifugal fan; the nozzle cleaning beam assembly includes a nozzle cleaning component, A fixed beam and a nozzle cleaning suction pipe; the fixed beam is fixed on the frame, the nozzle cleaning component is connected to the fixed beam, the nozzle cleaning component communicates with one end of the cleaning suction tube, and the cleaning The other end of the suction tube communicates with the suction switching valve assembly; the ink receiving assembly includes a plurality of ink receiving trays, an ink collecting tray collecting tube, and an ink receiving tray suction tube, and the ink receiving trays are evenly arranged and fixed at On the ink receiving tray collecting tube, the ink receiving tray communicates with the ink receiving tray collecting tube, and one end of the ink receiving tray suction tube communicates with the ink receiving tray collecting tube; the suction groove assembly It includes several suction troughs, suction trough fixing racks, and suction trough suction pipes. The suction troughs are evenly arranged and fixed on the suction trough fixing racks. The suction troughs are fixed to the suction troughs. The rack is connected; the other end of the ink receiving duct suction pipe communicates with the suction trough fixing rack; one end of the suction trough suction pipe communicates with the suction trough fixing rack, and the suction trough sucks The other end of the air pipe communicates with the air suction switching valve; the ink receiving assembly can move relative to the air suction tank assembly; and the centrifugal fan is connected to the air suction switching valve.

The suction switching valve assembly can generate negative pressure. When the nozzle needs to be cleaned, the suction switching valve communicates with the cleaning suction pipe, so that negative pressure is generated in the cleaning beam assembly; when it is necessary to absorb flying ink , The suction switching valve is switched, and the suction switching valve communicates with the suction pipe of the suction groove, so that a negative pressure is generated in the suction groove.

Preferably, the nozzle cleaning component can move on the fixed beam. Therefore, the nozzle cleaning component can clean all the channels, and the ink on the surface of the nozzle is sucked into the cleaning beam assembly by negative pressure.

Preferably, the ink-receiving tray assembly includes two ink-receiving tray collection tubes, and the two ink-receiving tray collection tubes are respectively connected to both ends of the ink-receiving tray; the ink-receiving tube connected to the ink-receiving tray suction tube The tray includes a hollow cavity, the hollow cavity is in communication with the ink receiving tray, and the ink collecting tray collecting tube away from the suction duct of the ink receiving tray is solid. The two ink collecting tray collecting tubes are provided to make the ink receiving tray fixed more stable, and the ink receiving tray connected to the ink receiving tray suction tube includes a hollow cavity, the hollow cavity and the ink receiving tray The tray is connected, and the ink collecting tray collection tube far away from the ink receiving tray suction tube is solid, so the ink received by the ink receiving tray can only flow toward one side of the ink receiving tray suction tube to prevent ink from flowing toward the other side Can not be cleaned up.

Preferably, the ink receiving tray is inclined toward an end of the ink receiving tray suction tube. As a result, the ink in the ink receiving tray can more easily flow toward the side of the suction pipe of the ink receiving tray under the action of gravity, and the ink can be prevented from settling in the ink receiving tray.

Preferably, an adjustment base is provided on the suction trough fixing frame, and the adjustment base includes forward and reverse spiral screws. Therefore, the height of the suction trough assembly from the belt surface can be adjusted according to different production requirements.

Preferably, an air suction adjusting component is provided on the air suction groove. Each of the air suction slots is provided with an air suction adjustment assembly, and the air suction adjustment assembly can adjust the suction force of each air suction slot.

Preferably, the printer nozzle cleaning and ink-flying device further includes a gas-liquid separation box, and the suction switching valve assembly and the gas-liquid separation box are connected through a switching valve suction pipe, and the gas-liquid separation box is connected to the The centrifugal fan is connected through the suction pipe of the gas-liquid separation box. The gas-liquid separation box can process flying ink. Clean air is discharged from the centrifugal fan through the suction pipe of the gas-liquid separation box, while the ink is left in the gas-liquid separation box. The system will issue a cleaning when stored to a certain height prompt.

Preferably, an infrared sensor is provided on the ink receiving tray. When the ink receiving tray assembly moves below the nozzle, each of the ink receiving trays can be directly under the nozzle channel. The ink on the nozzle can all fall on the ink receiving tray, and will not be sprayed on the outside of the ink receiving tray to cause environmental pollution.

Preferably, the nozzle cleaning component is inclined toward one end of the cleaning suction pipe. As a result, the ink in the nozzle cleaning component can more easily flow toward the side of the cleaning suction pipe under the action of gravity, and the ink can be prevented from settling in the nozzle cleaning component.

Preferably, the suction groove is inclined toward one end of the suction tube of the suction groove. As a result, the ink in the suction groove can more easily flow toward one side of the suction tube of the suction groove under the action of gravity, and the ink can be prevented from settling in the suction groove.

The beneficial effects of the present invention are as follows:

1. The initial position of the ink receiving tray is between the channels, that is, above the suction groove, which greatly utilizes the space of the whole machine and shortens the length of the whole machine.

2. Use the short-stroke cylinder as the motive power source for the ink receiving tray, and then use the slider guide rail and bearing wheel to move the entire set of ink receiving tray components on the suction groove assembly. This simplifies the design of the entire ink receiving portion and increases its stability. Reduce costs and reduce the time required for the entire cleaning process, thereby improving the efficiency of the production line.

3. The whole set of fixed connection method of the suction trough component and the ink receiving component reduces the lifting weight of the machine head and the load of the lifting motor, and can adjust the height of the suction trough from the conveyor belt according to different production needs.

4. Increase the gas-liquid separation tank, collect all the ink in the gas-liquid tank for processing, and then discharge the processed gas to the atmosphere through the centrifugal fan, thus reducing environmental pollution.

BRIEF DESCRIPTION

1 is a schematic diagram of a printer nozzle cleaning and ink-flying device of the present invention;

FIG. 2 is an assembly diagram of a printer nozzle cleaning and ink absorption device of the present invention.

The technical features indicated by the reference signs in the figure are as follows:

1. Nozzle cleaning parts; 2. Ink tray; 3. Ink tank; 4. Bearing pulley assembly; 5. Suction groove; 6. Suction adjustment assembly; 7. Adjusting base; 8. Ink tray movable cylinder; 9. Suction switching valve assembly; 10. Suction tube for switching valve; 11. Suction tube for suction slot; 12. Slide rail assembly; 13. Gas-liquid separation box; 14. Centrifugal fan; 15. Gas-liquid separation box Suction tube; 16. Cleaning suction tube; 17. Suction groove fixing frame; 18. Ink tray suction tube; 19. Ink tray collecting tube; 20. Fixed beam.

detailed description

The invention provides a printer nozzle cleaning and ink-flying device. As shown in FIG. 1, it includes a nozzle cleaning beam assembly, an ink receiving assembly, an air suction slot assembly, an air suction switching valve assembly, and a centrifugal fan; the nozzle cleaning beam The assembly includes a nozzle cleaning component 1, a fixed beam 20 and a cleaning suction pipe 16, wherein the fixed beam 20 is fixedly connected to the frame, and the upper surface of the nozzle cleaning component 1 is provided with a slit, the so-called upper surface refers to the illustration The upper surface of the direction, that is, the surface facing the nozzle during the cleaning of the nozzle, the slit is for sucking the ink on the surface of the nozzle, the nozzle cleaning component includes a hollow cavity inside the fixed beam 20 A hollow cavity is also included, and the above two hollow cavities are in communication, so that the head cleaning component 1 communicates with the fixed beam 20, so that when the head cleaning component 1 draws ink, the ink can enter the fixed beam 20. One end of the cleaning suction pipe 16 communicates with the fixed beam 20. There are one head cleaning member 1 on the left and right sides of the fixed beam 20, and the head cleaning member 1 can move on the fixed beam 20, so the head cleaning member 1 can absorb the ink on the surface of the head to the maximum extent, as shown in FIG. The other end of the cleaning suction pipe 16 communicates with the suction switching valve assembly 9. The head cleaning member 1 is inclined toward one end of the cleaning suction pipe 16. As a result, the ink in the nozzle cleaning component 1 can more easily flow toward the side of the cleaning suction pipe 16 under the action of gravity, and the ink can be prevented from settling in the nozzle cleaning component 1.

The ink-receiving assembly includes a plurality of ink-receiving trays 2, an ink-receiving tray collecting tube 19, and an ink-receiving tray suction tube 18. The number of ink-receiving trays 2 is equal to the number of nozzle channels, and the ink-receiving trays 2 are evenly arranged and fixed On the ink receiving tray collecting tube 19, each ink receiving tray 2 is provided with an ink receiving slot 3, and the ink receiving tray collecting tube 19 also includes a central cavity, and the ink receiving slot 3 is The central cavity of the ink collecting tray collecting tube 19 communicates, so the ink receiving tray 2 communicates with the ink receiving tray collecting tube 19, and the ink received by the ink receiving tray 2 can flow into the ink collecting tray collecting tube 19 Inside, and one end of the ink receiving tray suction tube 18 communicates with the ink receiving tray collecting tube 19; the other end of the ink receiving tray suction tube 18 communicates with the air suction slot fixing frame 17. The ink-receiving tray assembly includes two ink-receiving tray collecting tubes 19, and the two ink-receiving tray collecting tubes 19 are respectively connected to both ends of the ink-receiving tray 2; The ink tray collecting tube 19 includes a hollow cavity, the hollow cavity is in communication with the ink receiving tray, and the ink collecting tray collecting pipe 19 far from the ink receiving tray suction tube 18 is solid, so the ink receiving tray 2 The liquid can only flow to one side of the ink collecting tray collecting tube 19, to avoid the inability to clean up due to the ink flow to the other side. The two ink collecting tray collecting tubes 19 are provided to make the ink receiving tray 2 more stable. The ink receiving tray 2 is inclined toward one end of the ink receiving tray suction tube 18, that is, the height of the ink receiving tray 2 on one side of the ink receiving tray suction tube 18 is smaller than the height of the other side. Therefore, the ink in the ink receiving tray 2 can flow toward the side of the ink receiving tray suction tube 18 more conveniently under the action of gravity, so as to prevent the ink from settling in the ink receiving tray. The width of the ink receiving tray 2 is smaller than the distance between the adjacent two nozzle channels, so that each ink receiving tray 2 can be accommodated between the adjacent two nozzle channels when not in operation, saving space .

The ink receiving assembly further includes a moving assembly capable of moving the ink receiving assembly relative to the air suction slot assembly; the moving assembly includes a movable cylinder 8, a bearing pulley assembly 4 and a slider rail assembly 12.

An infrared sensor is provided on the ink receiving tray 2. When the ink receiving tray assembly moves below the nozzle, each ink receiving tray 2 can be directly under the corresponding nozzle channel, so that the The ink on the nozzle can all fall on the ink receiving tray, and will not be sprayed on the outside of the ink receiving tray to cause environmental pollution.

The suction trough assembly includes a plurality of suction troughs 5, a suction trough fixing frame 17, and a suction trough suction tube 11. The suction troughs 5 are evenly arranged and fixed on the suction trough fixing frame 17. The suction groove 5 communicates with the suction groove fixing frame 17; one end of the suction groove suction tube 11 communicates with the suction groove fixing frame 17, the other end of the suction groove suction tube 11 Communicating with the suction switching valve 9; the suction trough 5 includes a hollow cavity, the suction trough assembly includes two suction trough fixing frames 17, two suction trough fixing frames 17 are respectively connected with the Both ends of the suction groove 5 are connected, and the suction groove fixing frame 17 of the suction groove 11 of the suction groove includes a hollow cavity, and the hollow cavity communicates with the hollow cavity of the suction groove 5 , The suction pipe fixing bracket away from the suction pipe 11 of the suction slot is solid, so the liquid in the suction slot 5 can only flow to one side of the suction pipe of the suction slot to avoid the ink from flowing in the other direction Cannot be cleaned up. The number of suction slots 5 is the same as the number of nozzle channels, and each of the suction slots 5 is provided with a suction adjustment assembly 6, the suction adjustment assembly 6 is used to adjust the suction force of the suction slot, The air suction adjusting assembly 6 includes an air guide plate, which can adjust the size of the air suction opening on the air suction slot 5, so that the suction force of the air suction slot can be adjusted. The suction groove 5 is inclined toward one end of the suction tube 11 of the suction groove. Therefore, the ink in the suction groove 5 can more easily flow toward the side of the suction tube 11 of the suction groove under the action of gravity, so as to prevent the ink from settling in the suction groove 5.

A printer nozzle cleaning and ink-absorbing device according to the present invention further includes a gas-liquid separation box 13. The suction switching valve assembly 9 and the gas-liquid separation box 14 communicate with each other through a switching valve suction tube 10. The gas-liquid separation box 13 and the centrifugal fan 14 are connected through a gas-liquid separation box suction pipe 15. The gas-liquid separation tank 13 can process flying ink. Clean air is discharged from the centrifugal fan 14 through the gas-liquid separation tank suction tube 15 while the ink remains in the gas-liquid separation tank 13 when stored to a certain height. The system will issue a cleaning prompt. Collect all the ink into the gas-liquid tank for processing, and then discharge the processed gas to the atmosphere through the centrifugal fan, thus reducing environmental pollution.

In the printing process of ceramic inkjet printers, ink is ejected from the nozzle and onto the surface of the ceramic, and fine ink particles will also float in the air near the nozzle. This part is called flying ink. At this time, the negative pressure generated by the centrifugal fan 14 in operation sucks the flying ink into the suction groove 5, and the suction force of each suction groove 5 is adjusted by the suction adjustment component 6. The flying ink is collected into the gas-liquid separation box 13 through the suction tube 11, the suction switching valve assembly 9, and the switching valve suction tube 10 of the suction tank, and after the flying ink treatment by the gas-liquid separation box 13, clean air passes The suction pipe 15 of the gas-liquid separation box is discharged from the centrifugal fan 14, while the ink remains in the gas-liquid separation box 13, and the system will issue a cleaning prompt when stored to a certain height. After the nozzle has been working continuously for a period of time, in order to prevent the nozzle from clogging, the system will automatically clean the nozzle. First of all, the machine will raise the head assembly of the whole set of nozzles, and the ink receiving tray assembly will move on the suction slot assembly through the ink receiving tray movable cylinder 8, bearing pulley assembly 4 and slider guide assembly 12, when receiving ink When the movable cylinder 8 travels to the end, the position of the ink receiving tray 3 is under the nozzle. The infrared sensor on the ink receiving tray 3 senses whether the ink receiving tray 3 is aligned with the corresponding nozzle channel. If it is aligned, start the cleaning nozzle program If it is not aligned, the movable cylinder continues to work until it is aligned; when the cleaning nozzle program is started, the suction switching valve 9 is switched first, so that the nozzle cleaning component 1 generates negative pressure, and the nozzle presses ink, and the ink drops from the nozzle. The cleaning member 1 moves in the direction of the nozzle installation as a whole, and cleans all the nozzles. The ink on the surface of the nozzle is sucked into the cleaning member 1 by negative pressure, and is collected by cleaning the suction pipe 16, the suction switching valve assembly 9, and the switching valve suction pipe 10. In the gas-liquid separation box 13, at this time, the ink dripping from the nozzle is caught by the ink receiving tray 3, and then all the ink on the ink receiving tray 3 is collected into the ink receiving tray collecting tube 19, and passes through the ink receiving tray suction tube 18, The suction tank fixing frame 17, the suction tank suction tube 11, the suction switching valve assembly 9, and the switching valve suction tube 10 are collected into the gas-liquid separation box 13. The suction trough assembly is fixed on the whole machine frame through the adjustment base 7, and the adjustment base 7 includes positive and negative spiral screws, so the height of the suction trough assembly from the belt surface can be adjusted according to different production needs.

The embodiment of the printer nozzle cleaning and ink absorption device provided by the present invention has been described in detail above. In this article, specific examples are used to explain the principle and implementation of the present invention. The descriptions of the above examples are only used to help understand the core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principles of the present invention, a number of improvements and modifications can also be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention .

Claims

A printer nozzle cleaning and ink-flying device is characterized by comprising a nozzle cleaning beam assembly, an ink receiving assembly, an air suction slot assembly, an air suction switching valve assembly and a centrifugal fan; the nozzle cleaning beam assembly includes a nozzle cleaning component, A fixed beam and a nozzle cleaning suction pipe; the fixed beam is fixed on the frame, the nozzle cleaning component is connected to the fixed beam, the nozzle cleaning component communicates with one end of the cleaning suction tube, and the cleaning The other end of the suction tube communicates with the suction switching valve assembly; the ink receiving assembly includes a plurality of ink receiving trays, an ink collecting tray collecting tube, and an ink receiving tray suction tube, and the ink receiving trays are evenly arranged and fixed at On the ink receiving tray collecting tube, the ink receiving tray communicates with the ink receiving tray collecting tube, and one end of the ink receiving tray suction tube communicates with the ink receiving tray collecting tube; the suction groove assembly It includes several suction troughs, suction trough fixing racks, and suction trough suction pipes. The suction troughs are evenly arranged and fixed on the suction trough fixing racks. The suction troughs are fixed to the suction troughs. The rack is connected; the other end of the ink receiving duct suction pipe communicates with the suction trough fixing rack; one end of the suction trough suction pipe communicates with the suction trough fixing rack, and the suction trough sucks The other end of the air pipe communicates with the air suction switching valve; the ink receiving assembly can move relative to the air suction tank assembly; and the centrifugal fan is connected to the air suction switching valve.
The printer head cleaning and ink absorption device of claim 1, wherein the head cleaning member is movable on the fixed beam.
The printer head cleaning and ink absorption device according to claim 1, wherein the ink receiving tray assembly includes two ink collecting tray collecting tubes, and the two ink receiving tray collecting tubes are respectively connected to the ink receiving tray The two ends are connected; the ink receiving tray connected to the ink receiving tray suction tube includes a hollow cavity, the hollow cavity is in communication with the ink receiving tray, away from the ink receiving tray of the ink receiving tray suction tube The collection tube is solid.
The printer head cleaning and ink absorption device of claim 3, wherein the ink receiving tray is inclined toward one end of the ink receiving tray suction tube.
The printer nozzle cleaning and ink-absorbing device according to claim 1, wherein an adjustment base is provided on the suction trough fixing frame, and the adjustment base includes a forward and reverse spiral screw.
The device for cleaning and absorbing ink of a printer head according to claim 1, wherein an air suction adjusting component is provided on the air suction groove.
The device for cleaning and absorbing ink in a printer head according to claim 1, wherein the device for cleaning and absorbing ink in a printer head further comprises a gas-liquid separation box, and the suction switching valve assembly is separated from the gas-liquid The box is connected through a suction valve of a switching valve, and the gas-liquid separation box and the centrifugal fan are connected through a suction tube of the gas-liquid separation box.
The printer head cleaning and ink absorption device of claim 1, wherein an infrared sensor is provided on the ink receiving tray.
The printer head cleaning and ink-absorbing device of claim 1, wherein the head cleaning member is inclined toward one end of the cleaning suction tube.
The printer head cleaning and ink-absorbing device of claim 1, wherein the air suction groove is inclined toward one end of the air suction tube of the air suction groove.