CN114833143A - Method, device and equipment for removing ink on surface of workpiece by laser and storage medium - Google Patents
Method, device and equipment for removing ink on surface of workpiece by laser and storage medium Download PDFInfo
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- CN114833143A CN114833143A CN202210432788.8A CN202210432788A CN114833143A CN 114833143 A CN114833143 A CN 114833143A CN 202210432788 A CN202210432788 A CN 202210432788A CN 114833143 A CN114833143 A CN 114833143A
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- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000012545 processing Methods 0.000 claims abstract description 105
- 238000007639 printing Methods 0.000 claims abstract description 44
- 230000015654 memory Effects 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims description 5
- 238000004590 computer program Methods 0.000 claims description 4
- 229910052594 sapphire Inorganic materials 0.000 description 10
- 239000010980 sapphire Substances 0.000 description 10
- 238000009966 trimming Methods 0.000 description 9
- 239000000428 dust Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007649 pad printing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
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- 238000000576 coating method Methods 0.000 description 1
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- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- 238000002310 reflectometry Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
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Abstract
The application discloses a method, a device, equipment and a storage medium for removing ink on the surface of a workpiece by laser. The method for removing the ink on the surface of the workpiece by the laser comprises the following steps: the printing ink layer on the surface of the workpiece is arranged on the frame of the surface of the workpiece, the two sides of the printing ink layer in the width direction are respectively a first side and a second side, an inclined plane is machined on at least one side of the first side and the second side of the printing ink layer through laser equipment, and the inclined plane and the surface of the workpiece form an included angle which is larger than 0 degree and smaller than 90 degrees. This application can be in the work piece around the inboard and/or the outside processing of printing ink layer go out the inclined plane, the work piece can be cell-phone display panel or hand panel for example, makes at least one lateral wall in the inside wall and the lateral wall of printing ink layer be the inclined plane like this, and there is the bubble at printing ink edge when avoiding the pad pasting.
Description
Technical Field
The present disclosure relates to the field of laser processing technologies, and in particular, to a method, an apparatus, a device, and a storage medium for removing ink on a workpiece surface by using laser.
Background
At present, ink is pad printed on the surface of a workpiece (such as a mobile phone display panel, a hand panel, etc.), and then the excess ink is removed, so that the size of the ink layer reaches the required range, which has become a standard procedure in the processing process of many workpieces. In the traditional ink removing process, after ink is removed, when a workpiece is pasted with a film, bubbles are easily generated at the edge of the ink, and the problem cannot be solved.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In order to solve the technical problem, the application provides a method, a device, equipment and a storage medium for removing printing ink on the surface of a workpiece by using laser, wherein the method, the device and the equipment can avoid bubbles generated at the edge of an ink layer on the surface of the workpiece after the workpiece is pasted with a film.
To achieve the purpose, the embodiment of the application adopts the following technical scheme:
a method for removing ink on the surface of a workpiece by laser comprises the following steps:
A. the printing ink layer on the surface of the workpiece is arranged on the frame position of the surface of the workpiece, the two sides of the printing ink layer in the width direction are respectively a first side and a second side, an inclined plane is processed on at least one side of the first side and the second side of the printing ink layer through laser equipment, and the inclined plane and the surface of the workpiece form an included angle which is larger than 0 degree and smaller than 90 degrees.
As an alternative to the above method for removing ink on the surface of a workpiece by using laser, in step a, laser is performed on the first side and/or the second side of the ink layer in multiple layers from top to bottom, so as to form the inclined surface on the first side and/or the second side of the ink layer.
As an alternative to the above method for removing ink from the surface of a workpiece by laser, the inclined surface is at an angle of 7 ° to 55 ° to the surface of the workpiece.
As an alternative to the above method for removing ink from the surface of a workpiece by laser, the inclined surface is at an angle of 10 ° to 25 ° to the surface of the workpiece.
As an alternative to the above method for removing ink on the surface of a workpiece by using laser, in step a, the ink layer is annular, the first side is the inner side of the ink layer, and the second side is the outer side of the ink layer; when the inclined plane is formed by multilayer processing, the processing drawing files corresponding to each processing layer are all annular;
when the inclined plane is processed on the inner side of the ink layer, the periphery of the processing drawing file corresponding to each processing layer is gradually reduced inwards at a distance of 6-15 um;
when the outside processing of printing ink layer when the bevel, the inner periphery of the processing drawing file that every layer of processing layer corresponds outwards enlarges gradually with the distance of 6um-15 um.
As an alternative to the above method for removing ink on the surface of a workpiece by laser, the method further includes, after step a:
B. after the inclined surface of the ink layer is processed, removing redundant ink on the inner side and the outer side of the ink layer in the width direction; or
The step A is preceded by:
and S, removing redundant ink on the inner side and the outer side of the ink layer in the width direction before processing the inclined plane on the ink layer.
As an alternative of the method for removing the ink on the surface of the workpiece by using the laser, when the inclined plane is processed on the inner side of the ink layer, the inner circumference of the processing drawing file corresponding to each processing layer is flush; removing redundant printing ink on the inner side of the printing ink layer in a layered mode, wherein the size of each layer of drawing file is consistent; removing the periphery of the figure file with the excessive ink on the inner side of the ink layer and connecting the periphery of the figure file with the inner periphery of the figure file with the inclined surface on the inner side of the ink layer;
when the inclined surface is processed on the outer side of the ink layer, the periphery of the processing drawing file corresponding to each processing layer is flush; removing redundant ink on the outer side of the ink removing layer in a layered mode, wherein the size of each layer of drawing file is consistent; and the inner periphery of the drawing file for removing the redundant printing ink on the outer side of the printing ink layer is connected with the periphery of the drawing file for processing the inclined plane on the outer side of the printing ink layer.
As an alternative to the above method for removing ink on the surface of a workpiece by laser, the process parameters of laser processing are set as follows:
the diameter of the facula is 22-26um, the processing speed is 1000-2000mm/s, the frequency is 400-600KHZ, and the filling pitch is 0.005-0.01 mm; the power of the processed inclined plane is 0.2-0.6W; the power for removing the excessive ink is 0.70-1.05W.
As an alternative to the method for removing the ink on the surface of the workpiece by using the laser, in the step a, when the ink layer is processed by using the laser, the focal point of the laser is adjusted to be deviated to 0.15-0.25mm above the processing surface.
As an alternative to the above method for removing ink on the surface of a workpiece by laser, the workpiece is a display panel or a hand panel of a mobile terminal.
An apparatus for laser de-inking a surface of a workpiece, the laser machining apparatus comprising:
control module, workpiece surface's printing ink layer is located workpiece surface's frame position, the printing ink layer has along the relative first side and the second side that sets up of width direction, control module is used for controlling laser equipment and is in the printing ink layer first side with at least one side processing goes out the inclined plane in the second side, the inclined plane with workpiece surface forms and is greater than 0 and is less than 90 contained angle.
A laser machining apparatus, comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the method for laser de-inking a surface of a workpiece as described above.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method for laser de-inking a surface of a workpiece as described above.
The embodiment of the application has the advantages that: processing an inclined plane on at least one of the first side and the second side of the ink layer through laser equipment, so that bubbles can be prevented from being generated at the edge of the ink layer after subsequent film coating; in the related art, the edge of the ink layer is generally perpendicular to the surface of the workpiece, which causes bubbles to be generated at the edge of the ink layer after the film is coated. Meanwhile, the inclined plane is processed at the edge of the ink layer through laser processing, the requirement of processing precision can be met, the processing efficiency is high, and the processing speed is high.
Drawings
FIG. 1 is a block flow diagram of a method for laser ablation of ink on a workpiece surface according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a top view of a workpiece according to an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view of a workpiece according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of an ink layer before being processed according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of an ink layer processing process according to an embodiment of the present disclosure.
In the figure:
101. a workpiece; 102. an ink layer; 1021. a first side; 1022. a second side; 103. a laser processing head.
Detailed Description
The following detailed description of the embodiments of the present application, presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The embodiment discloses a method for removing ink on the surface of a workpiece by laser. As shown in fig. 1, the method for removing ink on the surface of a workpiece by laser comprises the following steps:
s100, arranging an ink layer on the surface of a workpiece at a frame position of the surface of the workpiece, arranging two sides of the ink layer in the width direction to be a first side and a second side respectively, processing an inclined plane on at least one of the first side and the second side of the ink layer through laser equipment, and forming an included angle which is larger than 0 degree and smaller than 90 degrees between the inclined plane and the surface of the workpiece.
Specifically, referring to fig. 2 and fig. 3, an ink layer 102 is disposed on a surface of the workpiece 101, and as shown in fig. 2, the ink layer 102 may be disposed on a frame position of the surface of the workpiece 101. Generally, the ink layer 102 is printed on the workpiece 101 by pad printing, and after the ink is pad printed on the surface of the workpiece 101, the excess ink needs to be removed. For example, after the ink layer 102 is transferred to the workpiece 101, the width of the ink layer 102 is wide, and the excess ink needs to be removed to make the width of the ink within a proper range. After removing the excess ink, it is sometimes necessary to coat the surface of the workpiece 101 with a film, and in the related art, bubbles are easily generated at the edge of the ink layer 102 after coating, and cannot be eliminated.
Referring to fig. 3, two sides of the ink layer 102 in the width direction are defined as a first side 1021 and a second side 1022, respectively, in this application, an inclined plane is processed on at least one of the first side 1021 and the second side 1022 of the ink layer 102 by a laser device, and the inclined plane forms an included angle α greater than 0 ° and smaller than 90 ° with the surface of the workpiece 101. The inclined plane bottom links up with work piece 101 surface, and the inclined plane top links up with the top of printing ink layer 102, and the bottom of whole printing ink layer 102 is outwards expanded, and the inclined plane is the certain slope with work piece 101 surface and printing ink layer 102 top and is connected, has a transition, and after work piece 101 surface pad pasting, printing ink layer 102 edge can not the gassing. In the related art, the edge of the ink layer 102 is a vertical surface perpendicular to the surface of the workpiece 101, so that after the surface of the workpiece 101 is pasted with a film, bubbles are generated at the edge of the ink layer 102, and the appearance effect is affected. Meanwhile, in the application, the inclined plane is processed in a laser mode, the processing precision is high, the processing speed is high, and the inclined plane with the smaller included angle alpha can be processed. In one embodiment, the bevel is at an angle of 7 ° to 55 °, such as 45 °, to the surface of the workpiece 101. Further, the angle α of the bevel to the surface of the workpiece 101 may be 10 ° to 25 °.
As shown in fig. 3, when the first side 1021 and the second side 1022 of the ink layer 102 are both provided with slopes, the cross-section of the ink layer 102 is substantially trapezoidal. No bubbles are generated on both sides of the ink layer 102.
Referring to fig. 4, the width d1 of the ink layer 102 before processing is about 0.7-0.8mm, and the thickness h is about 12 ± 5 um. Referring to fig. 3, the maximum width d2 of the ink layer 102 after processing is about 0.1mm, and the thickness h is not changed, or is 12 ± 5 um. Referring to fig. 5, the processing of ink layer 102 includes trimming (i.e., beveling) and removing excess ink.
Referring to fig. 5, during the bevel trimming, the first side 1021 and/or the second side 1022 of the ink layer 102 are laser-processed from top to bottom in multiple layers to form a bevel on the first side 1021 and/or the second side 1022 of the ink layer 102. The edge of the ink layer 102 is beveled by cutting down the layer by layer. The step-like drawing of each layer in fig. 5 is intended to represent the number of layers, which are actually cut to form a slope, as shown in fig. 3, rather than a jagged step surface.
Specifically, as shown in fig. 2, the ink layer 102 is annular, and is a ring of the ink layer 102 disposed at the frame of the workpiece 101. Referring to fig. 2, the first side 1021 of the ink layer 102 is the inner side of the ink layer 102 shown in fig. 2, and the second side 1022 of the ink layer 102 is the outer side of the ink layer 102 shown in fig. 2. When the inclined plane is formed by processing in multiple layers, the processing drawing files corresponding to each processing layer are all annular. Specifically, referring to fig. 5, when the inclined surface on the inner side of the ink layer 102 is processed, the process shown in fig. 5 is divided into three layers, each process layer has a ring-shaped process pattern, and the laser processing head 103 moves one round along the inner side of the ink layer 102 when one layer is processed. The number of processing layers in the embodiment shown in fig. 5 is three, and in other embodiments, the number of processing layers may be 4 or 5, or may be other numbers, which is not limited herein.
With continued reference to fig. 5, when the bevel is processed on the inner side of the ink layer 102, the periphery of the processing pattern file corresponding to each processing layer gradually shrinks inward by a distance d3 of 6um to 15 um. The periphery of the drawing file is the corresponding annular outer ring of the drawing file. As previously described, the trimmed graphic is ring-shaped, and when the inner side of ink trimming layer 102 is beveled, the periphery of each layer of graphic is gradually retracted inward by distance d3, thus trimming the inner side of ink layer 102. The distance d3 of each layer of figure file gradually decreases to 6um-15um, and further, the distance d3 is 8um-12 um.
Referring to fig. 5, when the slant is processed on the outer side of the ink layer 102, the inner circumference of the processing pattern file corresponding to each processing layer is gradually expanded outward by a distance of 6um to 15 um. The inner periphery of the figure file is the annular inner ring corresponding to the figure file. When the slope of the outer side of the ink layer 102 is trimmed, the inner circumference of each layer of the figure file is gradually enlarged, and the slope can be trimmed on the outer side of the ink layer 102. The distance that every layer of picture shelves dwindles gradually is 6um-15um, and further, the distance is 8um-12 um.
Step S100 is followed by:
s200, after the inclined surface of the ink layer 102 is processed, removing redundant ink on the inner side and the outer side of the ink layer 102 in the width direction; or
Step S100 is preceded by:
s10, before the ink layer 102 is beveled, excess ink is removed from the inside and outside of the ink layer 102 in the width direction.
Specifically, as described above, it is necessary to remove the excess ink in the width direction of the ink layer 102 so that the width of the ink layer 102 satisfies the required width range. Ink layer 102 is typically processed to be 0.7-0.8mm wide by about 0.1mm wide. Referring to fig. 5, both the inside and outside of ink layer 102 require removal of excess ink. The excess ink can be removed after the bevel is machined, or before the bevel is machined. That is, the excess ink may be removed after step S100, or the excess ink may be removed before step S100.
Referring to fig. 5, in an embodiment, when the inside of the ink layer 102 is processed with the bevel, the inner circumference of the processing pattern file corresponding to each processing layer is flush, so that the outer circumference of the excess ink inside the ink layer 102 is a neat ring surface perpendicular to the surface of the workpiece 101. And removing the redundant ink on the inner side of the ink layer 102 in a layered manner, wherein the size of each layer of drawing file of the drawing file with the redundant ink on the inner side of the ink layer 102 is consistent, and the drawing files with the redundant ink on the inner side of the ink layer 102 are a plurality of annular drawing files with consistent size. The periphery of the figure file with the excess ink removed from the inner side of the ink layer 102 is connected with the inner periphery of the figure file with the inner side inclined plane of the ink layer 102.
When the inclined surface is processed on the outer side of the ink layer 102, the periphery of the processing figure file corresponding to each processing layer is flush, so that the inner periphery of the redundant ink on the outer side of the ink layer 102 is a neat annular surface vertical to the surface of the workpiece 101. And removing the redundant ink on the outer side of the ink layer 102 in a layered manner, wherein the size of each layer of drawing file of the drawing file for removing the redundant ink on the outer side of the ink layer 102 is consistent, and the drawing files for removing the redundant ink on the outer side of the ink layer 102 are a plurality of annular drawing files with consistent size. The inner periphery of the figure file with the excess ink removed outside the ink layer 102 is connected with the periphery of the figure file with the inclined surface on the outside of the ink layer 102.
In one implementation, the process parameters of laser processing are set as follows:
the diameter of the light spot is 22-26um, the processing speed is 1000-; the power of the processed inclined plane is 0.2-0.6W; the power for removing the excessive ink is 0.70-1.05W. The power for machining the bevel is different from the power for removing the excess ink.
In step S100, the laser focus is adjusted to be 0.15 to 0.25mm above the processed surface when the ink layer 102 is laser processed. The size of a light spot on the processing surface can be increased by deflecting the focal point of the laser to the upper part of the processing surface by 0.15-0.25 mm. The working surface refers to the surface of the ink layer 102.
In the embodiment of the present application, the workpiece 101 may be a display panel of a mobile terminal (e.g., a display panel of a mobile phone) or a surface plate of a hand. In one embodiment, the workpiece 101 is sapphire, such as an apple watch top lid. And (4) pad printing ink on the surface of the sapphire, removing the redundant ink by laser equipment and processing an inclined plane. Of course, the workpiece 101 may be made of other materials, such as glass, ceramic, and the like.
The steps of the method for removing the ink on the surface of the workpiece by using the laser are described by taking sapphire as an example:
the first step is as follows: and establishing a corresponding marking drawing file and a corresponding processing template for the ink layer to be removed according to the appearance, the size and the processing requirement of the sapphire product. The thickness of the ink layer to be removed is 12 +/-5 um. The marking drawing file comprises a slope trimming drawing file and an ink removing drawing file, wherein the drawing files are closed figures, and the filling mode is contraction and expansion filling. The bevel finishing drawing file is 4-5 layers of drawing files with different sizes, one side of each layer of bevel finishing drawing file is displaced layer by 8-12 um, and the other side is aligned. The de-inking drawing file is 4-5 layers of drawing files with the same size, each layer of drawing file covers the laser, and the edges of the drawing files are connected and aligned with the bevel-trimming drawing file. The processing template is a CCD visual scheme.
The second step is that: and placing the sapphire product on a processing platform, starting laser equipment, adjusting the laser focal length to enable the laser focal point to be focused on the upper surface of the ink to be removed, and then upwardly deflecting the focal length by 0.2 mm. And debugging CCD parameters to enable a CCD camera to capture and position the four-side profile of the sapphire product, determining the coordinate and the rotation angle of the central point of the sapphire product, and matching the central position and the rotation angle of the processing drawing file with the position points of the product obtained by the CCD. The processing platform can move up and down, and the movement error is within the range of 0.01 mm. The parts of the processing platform corresponding to the sapphire de-inking area need to be hollowed out to prevent laser reflection from damaging ink, and a plurality of adsorption holes are formed in the jig to adsorb the knocked-down ink. The laser is an ultraviolet picosecond laser with the wavelength of 355nm, and the pulse width is less than 15 ns. The accuracy of the CCD camera is 2000 ten thousand pixels, and the visual field range is larger than 40 x 40 mm.
The third step: the method comprises the steps of setting processing technological parameters of a laser in marking software, independently drawing and trimming to improve the edge angle characteristic of an ink layer by utilizing the characteristics that the laser has short pulse width, high peak power and adjustable spot size and the marking software can set energy in a layered mode, firstly establishing a slope trimming drawing file according to the thickness of ink to be removed, and setting power. And then establishing and removing the ink drawing file, connecting the two established drawing files, setting power and debugging the process effect. The diameter of the laser spot is 22-26um, the processing speed in the laser process parameters is 1000-2000mm/s, the frequency is 400-600KHZ, the skip speed is 1000-2000mm/s, the filling interval is 0.005-0.01mm, and the opening, closing, skipping and turning delay are adjusted according to the closing condition of the actual marking pattern. The bevel trimming power is 0.2-0.6W, and the ink removing power is 0.70-1.05W.
The fourth step: and automatically calling a corresponding processing drawing file according to a pre-designed processing template, focusing laser emitted by a laser at a position of 0.2mm on the upper surface of the ink layer after passing through a frequency doubling cavity, a beam expanding lens, a shaping small hole, a vibrating mirror, an F-theta focusing lens and a 45-degree reflecting mirror, and removing redundant ink on the ink layer on the surface of the sapphire product and repairing a required inclined plane angle by high-speed scanning of the vibrating mirror. During the period, the ink gas is removed by pumping the laser by adopting a blowing and dust-pumping systemThe ink dust generated is reduced. The frequency doubling cavity is used for ultraviolet frequency doubling; the beam expander is a 3-time beam expander; the diameter of the small hole is 5mm-6mm, and the purpose is to shape the laser beam, filter out astigmatism and change the spot quality; the F-theta focusing lens is a 160 lens; the reflectivity of the 45-degree reflector is more than 99.5 percent. The dust extraction system comprises a blowing device, a dust extraction fan and a filter barrel, wherein the air pressure of the blowing device is 0.6Pa, an air outlet of the dust extraction fan is communicated with the filter barrel, and the air extraction flow of the dust extraction fan is more than 400m 3 /h。
The fifth step: after the laser processing is finished, the de-inking appearance effect of the sapphire product can be observed under a microscope, and the size of the ink edge angle can be measured by using a kirschner scanning or SEM (scanning electron microscope) slice. The microscope is an OMM (object model machine) microscopic image microscope, the magnification is 140 times, and the size measurement error is +/-0.005 mm; kirschner scanning is a 3D scanning device.
In the second step, the ultraviolet picosecond laser can also be an ultraviolet femtosecond laser, an infrared picosecond laser or a green picosecond laser.
Corresponding to the method for removing ink on the surface of a workpiece by using laser shown in fig. 1, an embodiment of the present application further provides an apparatus for removing ink on the surface of a workpiece by using laser, which is used for implementing the method shown in fig. 1 specifically, and the apparatus for removing ink on the surface of a workpiece by using laser specifically includes:
control module, workpiece surface's printing ink layer is located workpiece surface's frame position, the printing ink layer has along the relative first side and the second side that sets up of width direction, control module is used for controlling laser equipment and is in the printing ink layer first side with at least one side processing goes out the inclined plane in the second side, the inclined plane with workpiece surface forms and is greater than 0 and is less than 90 contained angle.
The device for removing the ink on the surface of the workpiece by using the laser comprises a plurality of layers of devices for carrying out laser on the first side and/or the second side of the ink layer from top to bottom, so that an inclined plane is formed on the first side and/or the second side of the ink layer.
The included angle between the inclined plane processed by the device for removing the ink on the surface of the workpiece by the laser and the surface of the workpiece is 7-55 degrees. Furthermore, the included angle between the inclined plane processed by the device for removing the ink on the surface of the workpiece by the laser and the surface of the workpiece is 10-25 degrees.
In one embodiment, the ink layer on the surface of the workpiece is annular, the first side of the ink layer is the inner side of the ink layer, and the second side of the ink layer is the outer side of the ink layer; when the inclined plane is formed by processing in multiple layers, the processing drawing files corresponding to each processing layer are all annular;
when the inner side of the ink layer is processed with the inclined surface, the periphery of the processing drawing file corresponding to each processing layer is gradually reduced inwards by the distance of 6-15 um;
when the inclined surface is processed on the outer side of the ink layer, the inner periphery of the processing drawing file corresponding to each processing layer is gradually expanded outwards at a distance of 6um-15 um.
The device for removing the ink on the surface of the workpiece by the laser further comprises:
the first removing module is used for removing redundant printing ink on the inner side and the outer side of the printing ink layer in the width direction after the printing ink layer is processed into an inclined plane; or
And the second removing module is used for removing redundant ink on the inner side and the outer side of the ink layer in the width direction before processing the inclined plane on the ink layer.
When the inner side of the ink layer is processed with the inclined surface, the inner circumference of the processing figure file corresponding to each processing layer is flush; removing redundant printing ink on the inner side of the printing ink layer in a layered manner, wherein the size of each layer of drawing file is consistent; the periphery of the figure file with the excessive ink removed on the inner side of the ink layer is connected with the inner periphery of the figure file with the inclined surface on the inner side of the ink layer;
when the inclined surface is processed on the outer side of the ink layer, the periphery of the processing figure file corresponding to each processing layer is flush; removing redundant ink on the outer side of the ink layer in a layered manner, wherein the size of each layer of picture file is consistent; the inner periphery of the figure file for removing the redundant printing ink on the outer side of the printing ink layer is connected with the periphery of the figure file for processing the inclined plane on the outer side of the printing ink layer.
The technological parameters of laser processing are as follows:
the diameter of the light spot is 22-26um, the processing speed is 1000-; the power of the processed inclined plane is 0.2-0.6W; the power for removing the excessive ink is 0.70-1.05W.
And (3) adjusting the focus of the laser to be 0.15-0.25mm inclined to the upper part of the processing surface when the ink layer is subjected to laser processing.
The workpiece is a display panel or a surface plate of the mobile terminal.
The embodiment of the application also provides laser processing equipment. Laser processing equipment may include, but is not limited to: one or more processors, memory.
The memory is used as a computer readable storage medium for storing software programs, computer executable programs, and modules, such as program instructions corresponding to the method for removing ink on the surface of a workpiece by using laser in the embodiment of the present application. The processor executes various functional applications and data processing of the laser processing equipment by running the software programs, instructions and modules stored in the memory, namely, the method for removing the ink on the surface of the workpiece by the laser is realized.
The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory may further include memory remotely located from the processor, and these remote memories may be connected to the laser processing apparatus via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a method for removing ink on a surface of a workpiece by using laser, where the method for removing ink on the surface of the workpiece by using laser includes the following steps:
s100, the ink layer on the surface of the workpiece is arranged on a frame of the surface of the workpiece, the two sides of the ink layer in the width direction are respectively a first side and a second side, an inclined plane is machined on at least one of the first side and the second side of the ink layer through laser equipment, and the inclined plane and the surface of the workpiece form an included angle which is larger than 0 degree and smaller than 90 degrees.
Of course, the computer-readable storage medium provided in this embodiment of the present application has computer-executable instructions that are not limited to the method operations described above, and may also perform related operations in the method for removing ink from the surface of a workpiece by using a laser provided in any embodiment of the present application.
From the above description of the embodiments, it is obvious for those skilled in the art that the present application can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-only memory (ROM), a Random Access Memory (RAM), a FLASH memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present application.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (13)
1. A method for removing ink on the surface of a workpiece by laser is characterized by comprising the following steps:
A. the printing ink layer on the surface of the workpiece is arranged on the frame position of the surface of the workpiece, the two sides of the printing ink layer in the width direction are respectively a first side and a second side, an inclined plane is processed on at least one side of the first side and the second side of the printing ink layer through laser equipment, and the inclined plane and the surface of the workpiece form an included angle which is larger than 0 degree and smaller than 90 degrees.
2. The method for laser-based ink removal from a workpiece surface of claim 1, wherein in step a, the first side and/or the second side of the ink layer are laser-processed from top to bottom in multiple layers to form the inclined surface on the first side and/or the second side of the ink layer.
3. The method for laser de-inking a workpiece surface according to claim 1, wherein the bevel is at an angle of 7 ° to 55 ° to the workpiece surface.
4. The method for laser de-inking a surface of a workpiece according to claim 1, wherein the bevel is at an angle of 10 ° to 25 ° to the surface of the workpiece.
5. The method for removing the ink on the surface of the workpiece by the laser according to claim 2, wherein in the step A, the ink layer is annular, the first side is the inner side of the ink layer, and the second side is the outer side of the ink layer; when the inclined plane is formed by multilayer processing, the processing drawing files corresponding to each processing layer are annular;
when the inclined surface is processed on the inner side of the ink layer, the periphery of the processing drawing file corresponding to each processing layer is gradually reduced inwards by the distance of 6um-15 um;
when the outside processing of printing ink layer when the bevel, the inner periphery of the processing drawing file that every layer of processing layer corresponds outwards enlarges gradually with the distance of 6um-15 um.
6. The method for removing ink on the surface of the workpiece by the laser according to claim 5, wherein the step A is further followed by:
B. after the inclined surface of the ink layer is processed, removing redundant ink on the inner side and the outer side of the ink layer in the width direction; or
The step A is also preceded by:
and S, removing redundant ink on the inner side and the outer side of the ink layer in the width direction before processing the inclined plane on the ink layer.
7. The method for laser removal of ink from a workpiece surface according to claim 6,
when the inclined surface is processed on the inner side of the ink layer, the inner circumference of the processing drawing file corresponding to each processing layer is flush; removing redundant ink on the inner side of the ink layer in a layering manner, wherein the size of each layer of picture file is consistent; removing the periphery of the figure file with the excessive ink on the inner side of the ink layer and connecting the periphery of the figure file with the inner periphery of the figure file with the inclined surface on the inner side of the ink layer;
when the inclined surface is processed on the outer side of the ink layer, the periphery of the processing drawing file corresponding to each processing layer is flush; removing redundant ink on the outer side of the ink removing layer in a layered mode, wherein the size of each layer of drawing file is consistent; and the inner periphery of the drawing file for removing the redundant printing ink on the outer side of the printing ink layer is connected with the periphery of the drawing file for processing the inclined plane on the outer side of the printing ink layer.
8. The method for removing the ink on the surface of the workpiece by the laser according to claim 6, wherein the process parameters of the laser machining are set as follows:
the diameter of the light spot is 22-26um, the processing speed is 1000-; the power of the processed inclined plane is 0.2-0.6W; the power for removing the excessive ink is 0.70-1.05W.
9. The method for removing the ink on the surface of the workpiece by the laser according to any one of claims 1 to 8, wherein in the step A, the focus of the laser is adjusted to be 0.15-0.25mm above the processing surface when the ink layer is processed by the laser.
10. The method for removing ink on the surface of the workpiece by using the laser as claimed in any one of claims 1 to 8, wherein the workpiece is a display panel of a mobile terminal or a surface plate of a hand.
11. An apparatus for removing ink on a surface of a workpiece by laser, the apparatus comprising:
control module, workpiece surface's printing ink layer is located workpiece surface's frame position, the printing ink layer has along the relative first side and the second side that sets up of width direction, control module is used for controlling laser equipment and is in the printing ink layer first side with at least one side processing goes out the inclined plane in the second side, the inclined plane with workpiece surface forms and is greater than 0 and is less than 90 contained angle.
12. A laser machining apparatus, characterized by comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the method for laser de-inking a surface of a workpiece of any of claims 1-10.
13. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the method for laser de-inking a surface of a workpiece according to any one of claims 1 to 10.
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| CN202210432788.8A CN114833143A (en) | 2022-04-24 | 2022-04-24 | Method, device and equipment for removing ink on surface of workpiece by laser and storage medium |
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