CN111976313A

CN111976313A - Matrix type multifunctional laser and ink jet mechanism with same

Info

Publication number: CN111976313A
Application number: CN202010695273.8A
Authority: CN
Inventors: 李星; 刘秀
Original assignee: Anhui Mi Cai Intelligent Technology Co ltd
Current assignee: Anhui Mi Cai Intelligent Technology Co ltd
Priority date: 2020-07-19
Filing date: 2020-07-19
Publication date: 2020-11-24

Abstract

The matrix type multifunctional laser comprises a shell body which is used for being installed on a working flat plate of the ink jet mechanism, a laser assembly which is formed by arranging a plurality of lasers in a matrix form is arranged in the shell body, a diverging lens which is used for diffusing laser beams into strip-shaped light spots is arranged in the shell body, and the laser beams of the laser assembly are all transmitted to the diverging lens in a concentrated mode. The laser assembly is formed by arranging a plurality of lasers in a matrix mode, when the curing function needs to be realized, a low-power combination mode is adopted, and when the burning and roughening functions need to be realized, a high-power combination mode is adopted. The invention adds laser burning and roughening functions, and can burn and roughen the surface of the printed material to facilitate ink adhesion.

Description

Matrix type multifunctional laser and ink jet mechanism with same

Technical Field

The invention relates to the field of ink curing, in particular to a matrix type multifunctional laser and an ink jet mechanism with the same. The ink-jet mechanism not only has the ink curing function, but also has the surface burning and roughening functions, and can realize the roughening, ink-jet and curing processes at one time.

Background

An ultraviolet lamp on a carriage mechanism of an existing printing machine mainly adopts an ultraviolet high-pressure mercury lamp or an ultraviolet light emitting diode (led). For example, the invention patent with chinese patent publication No. CN 102729648A discloses a UV inkjet printer LED ultraviolet light source time-delay exposure device, which includes a printing nozzle, an LED ultraviolet light source, and a slide rail for supporting the printing nozzle and the LED ultraviolet light source, and is characterized in that: the time-delay exposure device also comprises a heater for heating the printing medium, the heater is arranged on the front surface or the back surface of a printer carrying table surface where the printing medium plane is positioned between the printing spray head and the LED ultraviolet light source, and after the ink is sprayed and printed on the surface of the printing medium, the ink is heated by the heater to volatilize the solvent and then is cured by the LED ultraviolet curing light source. The invention makes the volatile ink have a solvent volatilization process after being sprayed and printed on the surface of the printing medium, and can not be solidified immediately, the heater makes the printing medium obtain certain heat from the objective table before being input into the feeding device and the UV ink sprayed and printed on the surface of the printing medium and a certain distance thereafter, and the printing medium can keep certain temperature, thus being beneficial to the volatilization of the solvent and improving the printing quality.

The mode of adopting the LED ultraviolet light source or the ultraviolet high-pressure mercury lamp has the following defects:

1. the energy consumption of the two lamps is about 10 times that of the ultraviolet laser.

2. The problems of uncontrollable light spot shape and serious ultraviolet light diffusion exist in the adoption of an ultraviolet high-pressure mercury lamp or an ultraviolet light-emitting diode, and workers who operate for a long time need to wear radiation-proof clothes.

3. The light spots are uncontrollable and the uv light diffusion also tends to cause the ink to harden on the print head. The hardened ink then skews the jet from the print head and causes poor print quality. In fact, even very small deflections of the ink jet can cause damaging results. Even if a shield is provided to prevent ambient light, especially uv light, from entering the print head, which is not good, stray light still enters the print head; and the carriage mechanism is bulky.

4. When an ultraviolet high-pressure mercury lamp or an ultraviolet light-emitting diode is adopted for irradiation, the temperature of ultraviolet radiation is about 60 ℃, and the ultraviolet radiation is in a high-temperature working environment for a long time, so that the service life of the ultraviolet radiation is short; for specific materials (such as plastic materials) to be printed, the materials are easy to deform in the printing process; in addition, thermal curing (high temperature curing) can reduce the life of pigment pastes in the ink and reduce print quality.

5. Measures are generally taken to cool the lamp tube and the reflector lamp cover by using an ultraviolet high-pressure mercury lamp or an ultraviolet light emitting diode. The conventional methods comprise: wind cooling, which is the most applied method at present, has lower cost, but the radiating fins occupy larger space; the water cooling, water jacket is added outside the lamp tube, the method has good effect, but the cost is higher, and the occupied space is large. Both of these approaches make the carriage mechanism of the printer bulky.

In order to solve the above problems, there are many manufacturers that use a curing device for curing UV ink by laser on a printer. The laser is adopted for curing, linear light spots with controllable shapes are obtained on the printing material, and the ink curing efficiency is improved while the power consumption is reduced. The whole ink curing is completed under the low-temperature condition, and the problem of deformation of printing materials does not exist, so that the printer has a wider application range.

However, the existing laser curing device has a large volume and high cost. The existing laser curing device has single function and does not have the functions of burning and roughening the surface of the printed material.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a matrix type multifunctional laser having a very small volume, and having both an ink curing function and a surface burning and roughening function.

The invention also aims to provide an ink jet mechanism with the laser, so as to realize the functions of roughening, ink jetting and curing at one time.

The technical scheme of the invention is as follows: a matrix type multifunctional laser comprises a shell which is used for being installed on a working flat plate of an ink jet mechanism, wherein a laser assembly which is formed by arranging a plurality of lasers in a matrix form is arranged in the shell, a divergent lens which is used for diffusing laser beams into strip-shaped light spots is arranged in the shell, and the laser beams of the laser assembly are all transmitted to the divergent lens in a concentrated mode; by controlling the laser assembly, a strip-shaped curing light spot for curing ink or a strip-shaped burning light spot for burning and roughening the surface of the printed object can be formed.

As an improvement of the invention, a lens mounting plate is arranged in the shell, and the divergent lens is fixed on the lens mounting plate; the lens mounting plate divides the interior of the shell into a laser assembly cavity and a strip-shaped light spot diverging cavity.

As an improvement of the invention, the shell is also internally provided with a water-cooling cavity for cooling the cavity of the laser assembly, and the water-cooling cavity comprises a water inlet interface and a water outlet interface. The water-cooling cavity is arranged above the cavity of the laser assembly; or the water cooling cavity is arranged around the cavity of the laser assembly.

As an improvement of the invention, radiating fins are arranged on two side plates of the shell.

As an improvement of the invention, the upper end of the shell is closed, and the lower end of the shell is provided with a light-transmitting plate with a dustproof function.

As an improvement of the invention, an oxygen inhibition gas channel communicated with external oxygen inhibition gas supply equipment is arranged in the shell, the oxygen inhibition gas channel is communicated with a laser assembly cavity, the laser assembly cavity is communicated with a strip-shaped light spot divergence cavity, and the strip-shaped light spot divergence cavity is communicated with the outside. The oxygen inhibition gas sequentially enters an oxygen inhibition gas channel, a laser assembly cavity and a strip-shaped light spot diffusion cavity in the shell and then comes out from the lower end of the shell. The oxygen inhibiting gas has the following functions: the cooling effect is achieved on the laser; when the laser assembly is used for curing the ink, the effect of accelerating the curing of the ink is achieved; when the laser assembly is used for roughening the surface of a printed object, the effects of inhibiting oxygen, preventing transition burning and finishing surface roughening under a safe state are achieved. Further, gaps are arranged between the two sides of the light-transmitting plate and the inner wall of the shell. Or, the light-transmitting plate is provided with air holes. Furthermore, the lens mounting plate is provided with air holes; alternatively, a gap is provided between the lens mounting plate and the inner wall of the housing.

As a improvement of the invention, the laser assembly comprises a first laser which plays a role in burning and roughening the surface of a printed object and has a wavelength of 760nm to 1mm, and a second laser which plays a role in curing ink and has a wavelength of 280nm to 415 nm. Further, the number of lasers of the laser assembly is 2 to 8.

Alternatively, the lasers of the laser assemblies are the same type of laser.

Or the laser of the laser assembly is a laser with adjustable power.

As the improvement of the invention, a plurality of triangular prisms used for finely adjusting the laser beam direction are arranged in the cavity of the laser assembly, the triangular prisms correspond to the laser one by one, and each triangular prism is fixed through a rotating shaft; the laser beam of each laser is more concentrated on the divergent lens, and a strip-shaped light spot with smaller width and more converged energy is formed after passing through the divergent lens.

An ink jet mechanism comprises a working flat plate and a spray head arranged on the working flat plate, wherein an ink outlet used for spraying ink on a printing medium is formed in the lower end face of the spray head; still including setting up the multi-functional laser of above-mentioned matrix on the work is dull and stereotyped, this multi-functional laser of matrix form forms the bar facula perpendicular with shower nozzle moving direction.

The beneficial effects of the invention include:

1. compared with the prior art, the laser ablation and roughening device has the advantages that the laser ablation and roughening functions are added, and the ablation and roughening with shallow depth can be carried out on the surface of the printed material, so that the ink can be adhered conveniently.

2. The invention forms the laser assembly by adopting a plurality of laser matrixes, realizes different laser combination forms by the controller, and ensures that the power of the laser assembly can be adjusted in a range, thereby obtaining strip-shaped light spots with different powers.

3. The strip-shaped burning light spot of the ink-jet mechanism of the invention can not cause the whole deformation of the printed object due to heating by synchronously and rapidly moving the spray head, and can burn and roughen the surface of the printed object with shallow depth so as to facilitate the adhesion of ink.

4. The matrix type multifunctional laser has small volume and can be arranged on a working flat plate of an ink jet mechanism together with a spray head.

5. The laser assembly is formed by arranging the plurality of lasers in a matrix, so that the effect of high-power light source curing is achieved, the production cost is greatly reduced, and the curing efficiency is improved.

6. The circulation of inhibiting gas through oxygen carries out the heat exchange with laser assembly cavity, cools down laser assembly cavity.

7. By using the oxygen inhibiting gas, the ink curing is carried out in an anaerobic environment, and the ink curing efficiency in the anaerobic environment is improved by about 20 times compared with the ink curing in the aerobic environment.

8. By using the oxygen-suppressing gas, the oxygen-suppressing gas can play a role of preventing ignition when laser ablation or roughening is performed on the surface of the object to be printed.

The features of the present invention will be apparent from the accompanying drawings and from the detailed description of the preferred embodiments which follows.

Drawings

Fig. 1 is a schematic view of a matrix type multifunction laser in embodiment 1.

Fig. 2 is a schematic view of the matrix-type multifunction laser of embodiment 1 without a front cover plate.

Fig. 3 is a front view of fig. 2.

Fig. 4 is a schematic view of the main body mounting plate.

Fig. 5 is a perspective view of fig. 4.

Fig. 6 is a sectional view taken along line a-a in fig. 3.

FIG. 7 is a schematic view of an installation structure of the light-transmitting plate.

FIG. 8 is another schematic view of a diverging lens.

FIG. 9 is another schematic view of a light-transmitting plate.

Fig. 10 is a schematic view of a matrix type multifunction laser in embodiment 4.

Fig. 11 is a sectional view taken along line B-B of fig. 10.

Fig. 12 is a schematic view of the matrix type multifunction laser in embodiment 4 with the front cover omitted.

Fig. 13 is a front view of fig. 12.

Fig. 14 is a schematic view of a matrix multifunction laser mounted on a work plate of an ink jet mechanism.

Fig. 15 is a top view of fig. 14.

Fig. 16 is a schematic view of a matrix multifunction laser according to another embodiment mounted on a work plate of an ink jet mechanism.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.

Example 1

Referring to fig. 1-7, a matrix type multifunctional laser, which is installed on a working plate of an ink jet mechanism, comprises a shell 100, for the convenience of installation, the size of the shell 100 is similar to the size of a spray head, the length of the shell is larger than or equal to the length of the spray head, the width of the shell is between one half and two times of the width of the spray head, and the height of the shell is not more than three times of the height of the spray head. The casing includes main part mounting panel 110 and front shroud 120, and main part mounting panel 110 can be obtained through aluminium alloy processing, passes through bolted connection between main part mounting panel 110 and the panel 120.

Referring to fig. 2, 3, 4 and 5, a laser assembly cavity 130, a bar-shaped spot diverging cavity 140 and a heat dissipating cavity are arranged inside the housing. A lens mounting plate 150 is disposed in the middle of the housing, and the lens mounting plate 150 separates the laser assembly cavity 130 from the bar-shaped spot diverging cavity 140. A light-transmitting opening is arranged below the divergent cavity 140.

The heat dissipation cavity is for facilitating heat dissipation of the laser, and in this embodiment, the heat dissipation cavity is a water cooling cavity 160, and the water cooling cavity 160 is disposed above the laser assembly cavity 130. The water cooling chamber includes a water inlet port 161 and a water outlet port 162. In order to facilitate the heat dissipation of the laser, heat dissipation fins (not labeled in the figure) are arranged on the two side plates of the shell.

A laser assembly 200 is disposed within the laser assembly cavity 130. The laser assembly 200 is formed by arranging 2 to 10 lasers in a matrix form to form a concentrated laser beam, for example, 4 lasers in an arc matrix arrangement as shown in fig. 2 are mounted and fixed by a laser fixing frame 131 (as shown in fig. 4 and 5), and the lasers and the laser fixing frame can be fixed by adopting bonding or screws; the lens mounting plate 150 is provided with a diverging lens 300 for diffusing the laser beam into a stripe-shaped spot, and in the present embodiment, the diverging lens 300 is a diverging mirror with a wave-shaped upper surface and a flat lower surface. The wave-shaped radian and the light spot length have a corresponding relation, and the formed strip-shaped light spots are different in length by selecting divergent lenses with different radians. The laser beams emitted by each laser of the laser assembly are emitted onto the divergent lens 300 in a concentrated manner (as concentrated as possible at the same point); a light-transmitting plate 400 with a dustproof function is arranged at the position of the light-transmitting opening below the divergent cavity. The laser beam of the laser assembly 200 is emitted to the diverging lens 300 and is diffused outward through the diverging lens 300 to form a strip-shaped spot. The length of the strip-shaped light spot corresponds to the printing width. The laser assembly has two working modes, and by controlling the laser assembly, a strip-shaped curing light spot for curing ink or a strip-shaped burning light spot for burning and roughening the surface of a printed object can be formed.

The invention adopts a plurality of laser devices to form a laser device assembly in a matrix arrangement, and realizes different laser device combination forms through the controller, so that the power of the laser device assembly can be adjusted in a range, thereby obtaining strip-shaped light spots with different powers.

In this embodiment, the laser assembly 200 includes a first laser (infrared laser) 210 having a wavelength of 750nm to 900mm for burning and roughening the surface of the object to be printed, and a second laser (ultraviolet laser) 220 having a wavelength of 280nm to 415nm for curing the ink.

Specifically, the method comprises the following steps: referring to fig. 2 and 3, the laser assembly 200 includes three first lasers 210 and one second laser 220, all connected in parallel; the lasers of the laser assembly adopt an independent control mode. When the ink needs to be cured by laser, the controller controls the first laser to be completely closed and the second laser to be opened, and at the moment, the laser beam emitted by the laser assembly forms a strip-shaped curing light spot with very high energy concentration after passing through the divergent lens, so that instant curing is completed; when the surface of the printed object is required to be subjected to laser cauterization and roughening, the first laser is controlled to be started through the controller, the second laser is controlled to be stopped, at the moment, the laser beam emitted by the laser assembly forms a bar-shaped cauterization light spot with very high energy concentration degree after passing through the divergent lens, and the surface of the printed object is subjected to cauterization and roughening with very shallow depth through rapid movement (the printed object is not deformed), so that ink is adhered. And selectively turning on one, two or three first lasers according to the material, surface burning and roughening temperature of the printed object.

Of course, different numbers of first lasers can be arranged according to different printed materials, so that the instant burning temperature range of the laser assembly is improved, and the printed objects with more materials can be burned and roughened.

The combined mode adopts the special infrared cauterization laser, has high energy and very high cauterization and roughening temperature, and can be suitable for roughening the surface of ceramic tile materials.

In addition, an oxygen inhibition gas channel 170 communicated with an external oxygen inhibition gas supply device is arranged in the shell, the oxygen inhibition gas channel 170 is communicated with the laser assembly cavity 130, referring to fig. 6, a vent hole 151 is arranged on the lens mounting plate, and the laser assembly cavity 130 is communicated with the strip-shaped light spot diffusion cavity 140 through the vent hole 151; referring to fig. 7, a gap 410 is provided between two sides of the transparent plate 400 and the inner wall of the housing, and the two sides of the transparent plate 400 are clamped and fixed by a plurality of fixing clamping plates 420. The bar-shaped spot diverging cavity 140 communicates with the outside through the gap 410. Thus, in the present invention, the oxygen-suppressing gas can sequentially pass through the oxygen-suppressing gas channel 170, the laser assembly cavity 130, the air hole 151, the strip-shaped light spot diverging cavity 140, and the gap 410, and enter the ink jetting region. Oxygen-inhibiting gases have a total of three effects, first: the circulation of the oxygen inhibition gas is subjected to heat exchange with the laser assembly cavity, so that the temperature of the laser assembly cavity is reduced; secondly, the method comprises the following steps: the ink curing is carried out in an anaerobic environment, and compared with the ink curing in an aerobic environment, the ink curing efficiency in the anaerobic environment is improved by about 20 times; thirdly, the method comprises the following steps: the oxygen-suppressing gas can prevent the occurrence of fire when laser ablation or roughening is performed on the surface of the object to be printed. The oxygen inhibiting gas is preferably nitrogen, and has low cost, no toxicity and no environmental pollution.

Of course, the communication between the laser assembly cavity 130 and the bar-shaped spot diverging cavity 140 may be other structures, such as a gap 152 between the lens mounting plate and the inner wall of the housing, as shown in fig. 8. The strip-shaped light spot diverging cavity 140 can be communicated with the outside, and may have different structures, for example, referring to fig. 9, the light-transmitting plate 400 is provided with air holes 430 or other air-permeable grooves.

Example 2

The difference from example 1 is that: the laser assemblies are different.

The laser assembly comprises ten lasers, the ten lasers are ultraviolet lasers (the ten lasers can be ultraviolet lasers with the same power and also ultraviolet lasers with different powers), the ten lasers are connected in series, and the lasers of the laser assembly adopt a centralized control mode. The controller can control the current of the ultraviolet laser and divide the current into low-grade current and high-grade current; when the ink needs to be cured by laser, the controller controls the ink to select low-level current, all ultraviolet lasers are turned on, and at the moment, laser beams emitted by the laser assembly form strip-shaped curing light spots with very high energy concentration after passing through the divergent lens, so that instant curing is completed; when the surface of the printed object needs to be cauterized and roughened by laser, high-grade current is selected through the control of the controller, all ultraviolet lasers are turned on, at the moment, laser beams emitted by the laser assembly form bar-shaped cauterizing spots with very high energy concentration degree (the power of the ultraviolet lasers is increased by increasing the current) after passing through the divergent lens, and the surface of the printed object is cauterized to form a roughened surface convenient for ink adsorption.

Example 3

The differences from examples 1 and 2 are: the laser assemblies are different.

The laser assembly comprises eight lasers, the eight lasers are all ultraviolet lasers (the eight lasers can be ultraviolet lasers with the same power and also can be ultraviolet lasers with different powers), the eight lasers are connected in parallel, when the ink needs to be cured by laser, one (or two) ultraviolet lasers are controlled to be turned on by the controller, and at the moment, laser beams emitted by the laser assembly form strip-shaped curing light spots with very high energy concentration degree after passing through the divergence lens, so that instant curing is completed; when the surface of the printed object needs to be burned and roughened by laser, more ultraviolet lasers are controlled to be opened by the controller, and the laser assembly power is increased by phase change to achieve the energy required by laser burning; at the moment, after laser beams emitted by the laser assembly pass through the divergent lens, a strip-shaped burning spot with very high energy concentration degree is formed, the surface of the printed object is burnt, and a frosted surface which is convenient for ink to adsorb is formed.

Because the higher the power of the laser is, the higher the cost is, in embodiments 2 and 3, a greater number of low-cost ultraviolet lasers are adopted, and the same effect as that of the high-power laser is achieved by the matrix arrangement, so that the surface burning and roughening functions of the printed object are realized, and the cost is effectively reduced.

Example 4

Referring to fig. 10, another matrix type multifunction laser, mounted on a work plate of an ink jet mechanism, includes a housing 500, and the housing 500 is slightly longer than that of embodiment 1.

The casing includes main part mounting panel 511 and front shroud 512, and the main part mounting panel can be obtained through aluminium alloy processing, passes through bolted connection between main part mounting panel and the panel.

Referring to fig. 10-13, a laser assembly cavity 513, a bar-shaped spot diverging cavity 514, and a heat dissipating cavity are disposed inside the housing. A lens mounting plate 516 is disposed in the middle of the housing, and the lens mounting plate 516 separates the laser assembly cavity 513 from the bar-shaped spot diverging cavity 514. A light-transmitting opening is arranged below the divergent cavity 514.

Referring to fig. 12, the heat dissipation cavity is for facilitating heat dissipation of the laser, and in this embodiment, the heat dissipation cavity is a water cooling cavity 515, and the water cooling cavity 515 is disposed around the cavity of the laser assembly. The water cooling cavity comprises a water inlet interface and a water outlet interface.

Referring to fig. 11, 12 and 13, a laser assembly is disposed within laser assembly cavity 513. The laser assembly is composed of 2 to 10 lasers 610 (4 in this embodiment) arranged in a matrix form to form a concentrated laser beam. The lens mounting plate 516 is provided with a diverging lens 630 for diffusing the laser beam into a stripe-shaped spot. The laser assembly further comprises 4 triangular prisms 620 for fine adjustment of the laser beam direction, the triangular prisms correspond to the laser one by one, and each triangular prism is fixed through a rotating shaft 621; pivot 621 is connected with actuating mechanism, and actuating mechanism drives the pivot and rotates to drive triangular prism low-angle rotation, realize the laser beam angle fine setting of every laser instrument transmission, make the laser beam of laser instrument assembly more concentrated, through forming the bar facula that the width is narrower, the energy is more polymerized behind the divergent lens, reduce the part machining precision requirement.

In addition, it should be noted that the triangular prism can be replaced by a mirror to reflect the laser beam and adjust the angle.

An oxygen inhibition gas joint 517 communicated with external oxygen inhibition gas supply equipment is arranged in the shell, the oxygen inhibition gas joint 517 is communicated with the laser assembly cavity 513, an air hole 518 is arranged on the lens mounting plate, and the laser assembly cavity 513 is communicated with the strip-shaped light spot diffusion cavity 514 through the air hole 518; a light-transmitting plate 519 is arranged on the lower portion of the strip-shaped light spot diverging cavity 514, a gap is formed between the two sides of the light-transmitting plate and the inner wall of the shell, and the two sides of the light-transmitting plate 519 are clamped and fixed through a plurality of fixing clamping plates. The bar-shaped spot diverging cavity 514 communicates with the outside through a gap. Thus, in the invention, the oxygen-inhibiting gas can sequentially pass through the oxygen-inhibiting gas joint 517, the laser assembly cavity 513, the air hole 518, the strip-shaped light spot diverging cavity 514, and the gap between the light-transmitting plate and the inner wall of the shell to enter the ink-jetting area.

Referring to fig. 14 and 15, an ink jet mechanism includes a work plate, a head disposed on the work plate, an ink outlet provided on a lower end surface of the head for ejecting ink onto a printing medium; still including setting up the multi-functional laser of matrix on the work is dull and stereotyped, this multi-functional laser of matrix forms the bar facula perpendicular with shower nozzle moving direction.

Taking a carriage mechanism for printing back as an example, the matrix type multifunctional laser and the spray head are both arranged on a working flat plate of the ink jet mechanism. The mounting positions are totally divided into 5 rows, and the first row is provided with a first matrix type multifunctional laser 11. The second row is provided with a second matrix type multifunctional laser 12 and a white nozzle 13 from left to right in sequence. The third row is provided with a color nozzle (red yellow) 14, a color nozzle (blue black) 15 and a third matrix type multifunctional laser 16 from left to right. The fourth row is provided with transparent color nozzles 17. The fifth row is provided with a fourth matrix multifunction laser 18. The method comprises the following steps of setting a first matrix type multifunctional laser 11 into a strip-shaped burning spot mode in advance; others are set in a stripe-shaped curing spot pattern.

The specific working principle of the structure is as follows:

1. taking printing of paper material as an example (without roughening)

The carriage mechanism drives the working flat plate to translate from right to left, and all the matrix type multifunctional lasers and the spray heads do not move;

then, the carriage mechanism drives the working plate to translate from left to right, the second matrix type multifunctional laser 12 and the white nozzle 13 in the second row are both started, and the rest are not started. Since the white nozzle 13 is located at the right side of the second matrix multifunction laser 12, the white nozzle 13 is colored first on the paper material, and the second matrix multifunction laser 12 is cured on the just ejected white ink behind the white nozzle 13.

Then, the carriage mechanism drives the working flat plate to translate from right to left, the color spray heads (red and yellow) 14, the color spray heads (blue and black) 15 and the third matrix type multifunctional laser 16 in the third row are all started, and the rest are not started. The color nozzle (red yellow) 14 and the color nozzle (blue black) 15 are firstly colored on the paper material, and the third matrix type multifunctional laser 16 is used for solidifying the just ejected color ink at the rear part.

Then, the carriage mechanism drives the working flat plate to translate from left to right, the transparent spray heads 17 in the fourth row are started, and the rest are not started. The transparent color head 17 ejects ink.

Then, the carriage mechanism drives the work plate to translate from right to left, the fourth matrix type multifunction laser 18 is activated, and the rest are not activated. The fourth matrix multifunction laser 18 cures the just ejected transparent color ink.

And then repeating the above steps in sequence.

2. Take PCB printing as an example (need surface roughening)

Printing on a PCB board: manufacturer trademark identification information, brand information, product parameter information and capacitance resistance information. In the prior art, after a circuit part of a PCB is processed, a solder mask layer needs to be manufactured, the PCB is heated and baked in an oven, relevant information is printed on the surface of the solder mask layer through screen printing, however, the smooth surface of the solder mask layer is poor in ink adsorption capacity, ink easily drops, the solder mask layer needs to be manufactured again, the PCB is heated and baked in the oven again, and the process is very complex.

In the invention, a PCB to be processed is fixedly placed on a printing platform, printing is carried out by controlling the carriage mechanism to move, the carriage mechanism drives the working flat plate to translate from right to left, the first matrix type multifunctional laser 11 in the first row is started, and the rest are not started. The strip-shaped cauterizing facula formed by the first matrix type multifunctional laser 11 completes cauterizing and roughening work with shallow depth on the surface of the PCB board.

Then, the carriage mechanism drives the working flat plate to translate from left to right, the transparent spray heads 17 in the fourth row are started, and the rest are not started. The transparent color head 17 ejects ink to restore the surface to gloss after roughening.

And then repeating the above steps in sequence.

The surface is roughened firstly, so that the ink adsorption capacity is greatly increased, the ink is firmly adsorbed, a solder mask does not need to be manufactured again, and the ink enters the oven for heating and baking again, so that the processing technology is reduced.

Of course, the number and/or location of matrix multifunction lasers can be adjusted to the actual condition of the material being printed. As shown in fig. 16, the matrix type multifunction laser is provided only at two end positions, one for implementing the roughening function and one for implementing the curing function.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A matrix type multifunctional laser comprises a shell which is used for being installed on a working flat plate of an ink jet mechanism, wherein a laser assembly which is formed by arranging a plurality of lasers in a matrix form is arranged in the shell, a divergent lens which is used for diffusing laser beams into strip-shaped light spots is arranged in the shell, and the laser beams of the laser assembly are all transmitted to the divergent lens in a concentrated mode; by controlling the laser assembly, a strip-shaped curing light spot for curing ink or a strip-shaped burning light spot for burning and roughening the surface of the printed object can be formed.

2. The matrix multi-function laser of claim 1, wherein a lens mounting plate is disposed within said housing, the diverging lens being secured to the lens mounting plate; the lens mounting plate divides the interior of the shell into a laser assembly cavity and a strip-shaped light spot diverging cavity.

3. The matrix multi-function laser of claim 1, wherein said housing further comprises a water cavity for cooling the laser assembly cavity, said water cavity comprising a water inlet port and a water outlet port.

4. The matrix multi-functional laser of claim 1, wherein said housing is closed at an upper end and has a dust-tight light transmissive plate at a lower end.

5. The matrix multi-function laser of claim 7, wherein said optically transparent plate is a frequency doubling crystal.

6. The matrix multi-function laser of claim 2, wherein said housing has an oxygen suppressing gas channel therein communicating with an external oxygen suppressing gas supply, said oxygen suppressing gas channel communicating with a laser assembly cavity, said laser assembly cavity communicating with a stripe-shaped spot diverging cavity, said stripe-shaped spot diverging cavity communicating with the outside.

7. The matrix multi-functional laser of claim 7, wherein a gap is provided between both sides of said light transmissive plate and the inner wall of the housing; or, the light-transmitting plate is provided with air holes.

8. The matrix multi-function laser of claim 7, wherein the lens mounting plate is provided with air holes; alternatively, a gap is provided between the lens mounting plate and the inner wall of the housing.

9. The matrix multi-functional laser of claim 1, wherein said laser assembly comprises a first laser with a wavelength of 750nm to 900mm for burning and roughening the surface of the object to be printed, and a second laser with a wavelength of 280nm to 415nm for curing the ink.

10. The matrix multi-function laser of claim 1, wherein the lasers of said laser assemblies are the same type of laser.

11. The matrix multi-function laser of claim 1, wherein said laser of said laser assembly is a power tunable laser.

12. The matrix multi-functional laser of claim 1, wherein a plurality of triangular prisms are disposed in the laser assembly cavity for fine adjustment of the laser beam direction, the triangular prisms are in one-to-one correspondence with the laser, and each triangular prism is fixed by a rotating shaft; the laser beam of each laser is more concentrated on the divergent lens, and a strip-shaped light spot with smaller width and more converged energy is formed after passing through the divergent lens.

13. An ink jet mechanism comprises a working flat plate and a spray head arranged on the working flat plate, wherein an ink outlet used for spraying ink on a printing medium is formed in the lower end face of the spray head; a matrix multifunction laser according to any of claims 1-12 disposed on a work plate, the matrix multifunction laser forming a stripe shaped spot of light perpendicular to the direction of travel of the spray head.