KR100794761B1 - Laser Etching Device Of Ink Jet Print Head And Method For Manufacture Thereof - Google Patents

Abstract

The present invention relates to a laser etching apparatus of an ink jet print head and a head manufacturing method using the same. In particular, a plurality of plate members for ejecting ink from an ink jet print head are placed in a plate fixing table and irradiated from a laser generating unit. The laser is distributed to a plurality of strands from the laser distribution means to irradiate a plurality of plate members, and at the same time, the table fixing means is controlled by a control unit to operate the plate fixing table in a desired direction, so that chambers, flow paths and holes necessary for the plate members are removed. A very useful and effective invention for allowing etching to be performed with precise and uniform depth, width and width.

Inkjet Printhead Laser Generator Plate Member Laser Distribution Means

Description

Laser Etching Device of Inkjet Printhead and Head Manufacturing Method Using Them {Laser Etching Device Of Ink Jet Print Head And Method For Manufacture Thereof}             

1 is a perspective view of main parts of a conventional digital printing machine,

2 is an exploded perspective view showing the head of FIG. 1;

3 is an exploded perspective view of a plate member constituting a general ink jet printing head,

4 is an assembled perspective view of a plate member constituting a general ink jet printing head,

5 is a perspective view showing a laser etching apparatus of the ink jet printhead according to the present invention;

6 is a block diagram of a laser etching apparatus according to the present invention;

7 is a view illustrating a process flow of etching an inkjet printhead with a laser etching apparatus according to the present invention.

* Description of the symbols for the main parts of the drawings *

7: head portion 26: head

40: plate member 50: first plate member

52 ink supply hole 54 first storage chamber

58: first supply chamber 60: center plate member

64 center hole 70 second plate member

72: second storage chamber 76: second supply chamber

80: laser generating unit 82: laser irradiation member

90: laser distribution means 92: case member

100: plate fixing table member 110: table driving means

120: control unit 130: key input unit

140: power supply unit 150: display unit

The present invention relates to an inkjet printhead of a digital printing machine, and more particularly, a table controlled by a control unit while simultaneously distributing a laser beam emitted from a laser generating unit into a plurality of strands by a laser distribution means and irradiating a plurality of plate members. Laser etching device of ink jet print head and head using the plate fixing table by driving means to etch chamber, flow path and hole necessary for plate member with precise and uniform depth, width and width It relates to a manufacturing method.

 In general, a digital printing machine is frequently (magenta, M), yellow (yellow, Y), cyan (cyan, C) on a head for ejecting ink by digitizing a desired output signal from a digital control unit. It is a modern printing device that draws a pattern desired by a user by using a subtractive mixing technique that supplies three primary colors, and colors the printing paper (messia) to create various colors.

In order to use the above-described subtractive mixing technique, ink having each color is individually received and supplied to a head for scanning each color, so that ink of the color scanned from each head is overlaid so that a new color is exhibited.

1 is a perspective view illustrating main parts of a conventional digital printing machine, and a brief description will be made of a general structure of a conventional digital printing machine with reference to the drawing.

In the conventional digital printing machine, a rail-shaped transfer table 5 is installed on an upper portion of the base 3 supported by both legs 1 contacting the bottom surface, and the head portion 7 is attached to the transfer table 5. The cartridge 9 fixed to one side is coupled to be transportable.

The cartridge 9 is coupled to the carriage belt 20 which is fitted to the guide rollers 10a and 10b provided at the left and right ends of the conveying table 5 and moves from side to side by driving of the motor 11. It is made to be transported.

In addition, a media, which is printing paper, is supplied from a paper feed roller (not shown) installed on the rear surface of the digital printing machine to the upper surface of the base 3, and the carriage belt 20 moves from the upper surface of the media. When the cartridge 9 is reciprocated to the left and right, the ink of the predetermined color is scanned from the head portion 7 in association with this, and a printing operation is performed, and the printing is carried out on the wind roller 12 on the opposite side of the paper feed roller. The media will be rolled up.

The media is a term known in the art, and refers to an object for outputting the ink ejected by the head portion 7 to paper or cloth.

An operating panel 16 covered by the cover 15 is formed on one side of the base 3 so that the user can input a desired signal to print the media in a desired state.

In addition, a plurality of main ink bottles 18 are installed on one side of the leg 1 in a state of being stored in the ink case 14, and an auxiliary ink bottle 17 is provided on the opposite side of the head portion 7 of the cartridge 9. It is installed to receive the ink from the main ink container 18 to supply the ink to the head (7).

As shown in FIG. 2, the structure of the head part 7 is formed by the lower case 22 and the upper case 24, and a part of the upper case is cut off to form a wiring hole that becomes a passage for wiring. 25) is formed.

The lower case 22 has an ink jet print head 26 for ejecting ink of different colors and is fixed to the head base 28 in a diagonal direction.

The ink jet print head 26 is connected to an ink supply line 30 at an upper side thereof to supply ink stored in an outer tank to the ink jet print head 26, and an injection hole at a lower side of the ink jet print head 26. 32) is installed to eject the ink to the lower portion of the head (7).

The head portion 7 moves left and right along the conveyer 5 and the ink ejected through each ink jet print head 26 is sprayed onto the media to obtain a desired output.

On the other hand, US Patent No. 5,592,203 has been claimed for the configuration of the plate member 40 for injecting ink directly to the media from the inkjet printhead 26, the plate element (Glass) and The first plate member 50, the center plate member 60, and the second plate member 70, which are made of the same ceramic material and are etched to supply ink, are bonded to each other with an adhesive or the like.

The first plate member 50 forms an ink supply hole 52 through which ink is injected, a first storage chamber 54 through which ink is temporarily sucked and stored, and a first flow path through which ink moves. And a first supply chamber 58 temporarily gathered before supplying the ink moved to the first flow passage 56 on one side.

The center plate member 60 is bonded to one side of the first plate member 50 by a bond and supplies ink supplied to the ink supply hole 52 of the first plate member 50. An ink through hole 62 which moves to the opposite side, and a center hole 64 through which ink stored in the first supply chamber 58 of the first plate member 50 moves; The nozzle groove 64 for directly spraying the media of ink) is recessed on one side.

In addition, the second plate member 70 is bonded to the opposite side of the center plate member 60 and the ink passed through the ink through hole 62 of the center plate member 60 is temporarily sucked in and stored. One side of the second storage chamber 72, the second flow path 74 through which ink moves, and the second supply chamber 76 temporarily gathered before the ink moved to the second flow path 74 is supplied. To form a depression.

As such, various grooves having a predetermined depth, width, and width in the first plate member 50, the center plate member 60, and the second plate member 70, which are components of the plate member 40, are picked up. After forming by etching using the etching solution made, it is configured to adhere using an adhesive.

However, as described above, in order to form various grooves of the first plate member 50, the center plate member 60, and the second plate member 70, which are the components of the plate member 40, The width and width must be precisely and uniformly etched in mm or μm. However, since the acidity of the etching solution and the uniformity of the material of the plate member 40 are not ensured, inaccurate etching is often performed, resulting in ink There is a problem that causes a poor ink supply of the jet printhead.

That is, the first and second storage chambers 54 and 72, the first and second supply chambers 58 and 76, and the first and second flow paths 56 and 74 formed in the plate member 40. Because of the high resistance to the etching solution that moves the ink solution), the friction cannot be precisely moved, and the ink sprayed through the center hole 64 of the center plate 60 to the nozzle groove 66 is prevented. The problem is that spraying does not maintain the correct direction and spraying range

The present invention has been made to solve the above problems, a number of plate members for ejecting ink from the ink jet print head is placed in the plate fixing table, and a plurality of lasers irradiated from the laser generating unit in the laser distribution means The plate driving means controlled by the control unit while distributing it into strands and irradiating a plurality of plate members simultaneously operates the plate fixing table in a desired direction to precisely and uniformly control the chamber, flow path and holes required for the plate members. The purpose is to perform etching by width.

The laser etching apparatus of the ink jet printhead according to the present invention for achieving the above object comprises a plate member formed by bonding a first plate member, a center plate member and a second plate member for supplying ink to each other by an adhesive. An ink jet printer head, comprising: a plate fixing table member for placing a plate member before processing to fix a position; A laser generator for distributing, transmitting, and integrating a laser beam irradiated from a laser irradiation member on a surface of the plate member placed in the plate fixing table member to form an etching portion; Table drive to be installed adjacent to the plate fixing table member to selectively operate in the X-axis, Y-axis, Z-axis direction to etch the etching portion having the desired depth, width and width on the surface of the plate member placed Means; And a control unit for controlling the driving of the table driving means while irradiating the laser from the laser generation unit.

Then, the laser is irradiated from the laser irradiation member of the laser generating unit to distribute the laser to a plurality of strands by reflection and transmission in a plurality of laser distribution plate, and to simultaneously process a plurality of plate members placed on the plate fixing table member Laser distribution means for integrating the laser into the focusing lens.

The laser distribution plate is preferably a beam splitter that reflects and transmits the irradiated laser beam.

Further, it is preferable that a neutral filter is further provided between the laser distribution plate and the focusing lens to precisely etch the inclined portion having different depths of the etched portion of the laser beam.

In addition, a key input unit connected to the control unit is provided to input a control signal for etching the plate member placed in the plate fixing table member.

And a display portion connected to the control portion to display an operation state of the table driving means, a laser irradiation state of the laser generation portion, a signal input state of the key input portion, and a power input state of the power supply portion. Do.

It is preferable to include a power detection unit for detecting the intensity of the laser reflected from the laser distribution plate as the laser distribution means to control the power of the laser irradiated from the laser irradiation member in the control unit.

In order to achieve the above object, the inkjet printhead manufacturing method using the laser etching apparatus of the present invention includes the steps of placing a plate member before processing on a plate fixing table member to fix a position; Inputting information, such as depth, width, and width, of the etched portion of the plate member, into the controller by the key input unit after the step; Irradiating a laser beam from the ray irradiation member of the laser generation unit after the step; Distributing the irradiated laser after the step into a plurality of strands of lasers in a plurality of laser distribution plates installed in the laser distribution means; After the above step, the table driving means installed in the plate fixing table member is operated in the X-axis, Y-axis, and Z-axis directions according to the information input to the control unit to integrate lasers distributed in multiple strands on a plurality of plate members by focusing lenses. Forming a site.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

5 is a perspective view showing a laser etching apparatus of the ink jet printhead according to the present invention, FIG. 6 is a block diagram of a laser etching apparatus according to the present invention, and FIG. 7 is an inkjet print using the laser etching apparatus according to the present invention. A diagram showing a process of etching a head.

According to the present invention, the first plate member 50, the center plate member 60, and the second plate member 70, which are made of a ceramic material such as glass and whose surface is etched to supply ink, are bonded to each other. An ink jet printer head (26) having a plate member (40) formed by being joined to each other, comprising: a plate fixing table member (100) for placing a plate member (40) before processing to fix a position; Distributing, reflecting and integrating the lasers 84, 96 irradiated from the laser irradiation member 82 on the surface of the plate member 40 placed on the plate fixing table member 100 to form an etching portion 42 A laser generator 80; X-axis, Y-axis, Z-axis to etch the etching portion 42 having a desired depth, width and width on the surface of the plate member 40 is installed adjacent to the plate fixing table member 100 Table driving means 110 to operate in the direction; The laser generating unit 80 is irradiated with the laser 84, 96 and at the same time the control unit 120 to control the driving of the table driving means 110.

In addition, the laser 84 irradiated from the laser irradiation member 82 of the laser generator 80 distributes the laser 96 into a plurality of strands by reflection and transmission on the plurality of laser distribution plates 94. It is to be further provided with a laser distribution means 90 to be integrated into the plurality of plate members 40, which are settled in the plate fixing table member 100 to the focusing lens 98 to process.

In addition, the laser distribution means 90 uses a device called a beam splitter, which splits the incident laser into specific intensity ratios and sends them to different paths.

Although the reflection and transmission ratio of the beam splitter can be appropriately adjusted as necessary, it is most preferable to set it as 50:50.

In addition, between the laser distribution plate 94 and the focusing lens 98, the laser 96 irradiated to the plate member 40 precisely etches inclined portions having different depths of the etching portion 42. A neutral filter (Neutral Density Filter; ND Filter) is further provided.

In addition, the laser distribution plate 94 installs a plurality of beam splitters that transflect the incident laser 84 at an appropriate position to distribute the transmitted laser 96 into a plurality of strands.

In addition, a key input unit 130 connected to the control unit 120 is provided to input a control signal for etching the plate member 40 placed in the plate fixing table member 100.

In addition, the display unit 150 is connected to the control unit 120, the operating state of the table driving means 110, the laser irradiation state of the laser generating unit 80, and the key input unit 130 The signal input state and the power input state of the power supply unit 140 are displayed.

Then, the power distribution unit 160 for detecting the intensity of the laser reflected from the laser distribution plate 94, the laser distribution means 90 of the laser irradiation from the laser irradiation member 82 in the control unit 120 Control the power.

The table driving means 110 applies a conventionally known driving device to selectively move in the X-axis, Y-axis, and Z-axis directions using a motor or a cylinder.

Hereinafter, a method of manufacturing an inkjet printhead using a laser etching apparatus according to the present invention will be described in detail.

5 and 7, a plurality of plate members 40 not etched is placed in the plate fixing table member 100 to fix the position. (S10)

At this time, the plate member 40, which consists of the first plate member 50, the center plate member 60 and the second plate member 70, the first plate member 50 by laser etching In this case, only the first plate member 50 is settled, the center plate member 60 is placed between the center plate members 60, and the second plate member 70 is placed between the second plate members 70. do.

That is, since the table driving means 110 is operated by the same trajectory and the etching is performed, when the different plate members 40 are placed, the etching portions 42 are formed differently and thus cannot be used.

At this time, the position fixing of the plate member 40 is provided with a vacuum device (Vacuum Device) in the plate fixing table member 100 by suction at the bottom by a vacuum pressure fixed or pressurized from the side using a gripper (Gripper) Can be configured to be fixed.

In addition, after the step, the key input unit 130 inputs information such as depth, width, and width of the etching portion 42 of the plate member 40 to the controller 120. (S20)

Then, after the step, according to the control signal of the control unit 120 to irradiate the laser 84 from the laser irradiation member 82 of the laser generating unit 80. (S30)

Then, the laser 84 irradiated after the above step is distributed from the plurality of laser distribution plates 94 installed in the laser distribution means 90 such as the beam splitter to the plurality of strands of the laser 96.

For example, the output of the laser 84 generated by the laser generating unit 80 is 30W, the output of the laser 96 for processing the etching portion 40 of one plate member 40 is 1W. If so, since the laser 96 distributed from the laser distribution plate 94, which is the laser distribution means 94, becomes 30 strands, the number of plate members 40 that can be etched by the plate fixing table member 100 (1 W x 30). Dog = 30W) is a total of 30. The number of the plate member 40 to be etched is appropriately adjusted according to the output of the laser 84 generated from the laser generating unit 80,

One of the strands of the laser reflected by the laser distribution plate 94 is detected by the power detecting unit 160 to control the intensity of the laser generated by the laser generating unit 80 in the control unit 120.

The laser beam penetrating the laser distribution plate 94 passes through the neutral filter 97 and etches portions having different depths, such as chambers and flow paths (nozzles), from the etching portions 42 of the plate member 40. When used, it is used for precise processing.

In addition, after the step, the table driving means 110 installed in the plate fixing table member 100 is selectively operated in the X-axis, Y-axis, and Z-axis directions according to the information input to the controller 120, thereby providing a plurality of plate members ( The laser 96 distributed in multiple strands 40 is integrated into the focusing lens 98 to form an etching portion 42.

Therefore, as described above, when the head is manufactured using the laser etching apparatus of the ink jet print head of the present invention, a large number of plate members for ejecting ink from the ink jet print head are placed in the plate fixing table, The irradiated laser is distributed to the plurality of strands by the laser distribution means to irradiate a plurality of plate members, and at the same time, the table fixing means controlled by the control unit operates the plate fixing table in a desired direction, thereby requiring chambers, flow paths, and holes. It is a very useful and effective invention that allows etching etc. to be carried out with precise and uniform depth, width and width.

Claims (8)

A plate fixing table member for fixing the position by placing the plate member before processing; A laser generator for distributing, transmitting, and integrating a laser beam irradiated from a laser irradiation member on a surface of the plate member placed in the plate fixing table member to form an etching portion; Table drive to be installed adjacent to the plate fixing table member to selectively operate in the X-axis, Y-axis, Z-axis direction to etch the etching portion having the desired depth, width and width on the surface of the plate member placed Means; The first plate member, the center plate member, and the second plate member for supplying the ink manufactured by using the control unit for controlling the driving of the table driving means while irradiating the laser from the laser generating unit are bonded to each other by an adhesive agent. An ink jet print head comprising a plate member, Focusing lens to distribute the laser irradiated from the laser irradiation member of the laser generating unit into a plurality of strands by reflection and transmission in a plurality of laser distribution plate, and simultaneously processing a plurality of plate members placed on the plate fixing table member And a laser distribution means for integrating the laser into the laserjet printhead of the ink jet printhead. delete The laser etching apparatus of claim 1, wherein the laser splitter is a beam splitter for reflecting and transmitting the irradiated laser. The neutral filter of claim 1 or 3, further comprising a neutral filter between the laser distribution plate and the focusing lens to precisely etch inclined portions having different depths of etching portions from the laser irradiated to the plate member. Laser etching apparatus of the ink jet printhead, characterized in that. The table driving apparatus of claim 1, further comprising a key input unit connected to the control unit, a control signal for etching a plate member placed on the plate fixing table member, and a display unit connected to the control unit. And an operation state of the means, a laser irradiation state of the laser generation unit, a signal input state of the key input unit, and a power input state of the power supply unit. delete The inkjet printhead of claim 1, further comprising a power detector configured to detect the intensity of the laser reflected by the laser distribution plate, the laser distribution means. Laser etching device. Placing the plate member before the processing in the plate fixing table member to fix the position; Inputting information, such as depth, width, and width, of the etched portion of the plate member, into the controller by the key input unit after the plate member position fixing step; Irradiating a laser beam from the ray irradiation member of the laser generation unit according to a control signal of the controller after the inputting of the controller; Distributing the irradiated laser after the laser irradiation step into a plurality of strands of lasers in a plurality of laser distribution plates installed in the laser distribution means; After the laser dispensing step, the table driving means installed in the plate fixing table member is operated in the X-axis, Y-axis, and Z-axis directions according to the information input to the control unit to integrate the laser distributed in multiple strands into a plurality of plate members into a focusing lens. Inkjet printhead manufacturing method using a laser etching device comprising the step of forming an etching portion by.

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