CN113977069A - Ultraviolet laser-assisted plastic surface marking device and working method thereof - Google Patents

Ultraviolet laser-assisted plastic surface marking device and working method thereof Download PDF

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Publication number
CN113977069A
CN113977069A CN202111287052.8A CN202111287052A CN113977069A CN 113977069 A CN113977069 A CN 113977069A CN 202111287052 A CN202111287052 A CN 202111287052A CN 113977069 A CN113977069 A CN 113977069A
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China
Prior art keywords
ultraviolet laser
plastic
coloring
laser
marking
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Pending
Application number
CN202111287052.8A
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Chinese (zh)
Inventor
张�杰
陶沙
秦国双
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Inno Laser Technology Corp ltd
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Inno Laser Technology Corp ltd
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Priority to CN202111287052.8A priority Critical patent/CN113977069A/en
Publication of CN113977069A publication Critical patent/CN113977069A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/28—Treatment by wave energy or particle radiation
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Laser Beam Processing (AREA)

Abstract

The embodiment of the invention discloses an ultraviolet laser assisted plastic surface marking device and a working method thereof. The marking device can realize marking of different requirements of the surface of the plastic material so as to construct high-contrast marks of the surfaces of the plastic materials with different colors.

Description

Ultraviolet laser-assisted plastic surface marking device and working method thereof
Technical Field
The invention relates to the technical field of marking devices, in particular to an ultraviolet laser-assisted plastic surface marking device and a working method thereof.
Background
Lasers have been widely used for marking of various materials, becoming the most widely used lasers. The purpose of marking is to create visual and circumferential variations in specific areas of the material surface. Such variations may be in color or in morphology.
The traditional marking method mainly adopts a printing mode, namely, ink with different colors is printed on a sample through a printer, and belongs to two-dimensional additive marking, and the mode has color diversity and strong universality; but consumes a great deal of chemical materials, and the label can be discolored after a long time; the laser marking is mainly characterized in that the specific structure removal is carried out on the surface of a material by utilizing the interaction of laser and the material, belongs to two-dimensional material reduction marking, although no consumable is needed, the process is simple; but the color is single, the mark contrast is low, and the dependence on the material color is high; metals, glass materials, semiconductor materials, polymer-based plates and pipes and the like are often in multiple colors, and for polymer materials with dark colors, ultraviolet laser can realize high-contrast marking in a laser bleaching mode. However, for light colored polymers, laser can achieve contrast marking by inducing surface structuring to achieve "laser darkening," but the effect is often poor resulting in low contrast, appearing grey.
Therefore, the color marking of the polymer material is difficult to realize only by using laser, and if the direct printing of the foreign color is directly adopted, the problem of matching the colors and the structures of the foreign material and the bulk material exists.
Therefore, there is a need to design a new device to mark the surface of plastic material with different requirements to construct a high-contrast mark on the surface of plastic material with different colors.
Disclosure of Invention
The invention aims to provide an ultraviolet laser-assisted plastic surface marking device and a working method thereof.
In order to solve the technical problems, the invention aims to realize the following technical scheme: the utility model provides a supplementary plastics surface marking device of ultraviolet laser, includes ultraviolet laser, optical device and colouring device, ultraviolet laser with optical device connects, the plastics sample has been placed to optical device's below, the colouring device is located one side of optical device.
The further technical scheme is as follows: further comprising a transfer structure located below the optics, and the plastic sample is placed on the transfer structure.
The further technical scheme is as follows: the coloring device is arranged above the conveying structure.
The further technical scheme is as follows: the optical device comprises a beam expanding lens, a vibrating lens and a field lens which are connected in sequence.
The further technical scheme is as follows: the coloring device comprises an inkjet coloring device.
The further technical scheme is as follows: the coloring device comprises a printing and coloring device.
The further technical scheme is as follows: the coloring means comprises a wet coloring means.
In addition, the technical problem to be solved by the invention is also to provide a working method of the ultraviolet laser assisted plastic surface marking device, which comprises the following steps:
after laser beams emitted by an ultraviolet laser pass through an optical device, modifying the surface of the plastic sample, removing color on the surface of the plastic sample according to a preset identification pattern, and generating a micro-nano structure;
and contacting the surface of the micro-nano structure after color removal with an externally added dye solution, and coloring and curing the micro-nano structure subjected to color removal by laser through a coloring device to generate the mark.
The further technical scheme is as follows: the wavelength of the laser beam emitted by the ultraviolet laser is 355 nm.
The further technical scheme is as follows: the repetition frequency of the laser beam emitted by the ultraviolet laser is 10kHz to 2000 kHz.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, by arranging the ultraviolet laser, the optical device and the coloring device, the surface of the plastic sample is improved by utilizing the ultraviolet laser emitted by the ultraviolet laser after passing through the optical device, the micro-nano structure is subjected to color removal and processing, and then the micro-nano structure subjected to color removal is colored by the coloring device to form corresponding marks, so that the marking of the surface of the plastic material with different requirements is realized, and the marks with high contrast on the surfaces of the plastic materials with different colors are constructed.
The invention is further described below with reference to the accompanying drawings and specific embodiments.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an ultraviolet laser assisted plastic surface marking device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an ultraviolet laser-assisted plastic surface marking device according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an ultraviolet laser-assisted plastic surface marking device according to a third embodiment of the present invention;
FIG. 4 is a schematic flow chart of a working method of the ultraviolet laser assisted plastic surface marking device provided by the embodiment of the invention;
FIG. 5 is a schematic sub-flow chart of the working method of the ultraviolet laser assisted plastic surface marking device according to the embodiment of the invention;
FIG. 6 is a schematic sub-flow chart of the working method of the ultraviolet laser assisted plastic surface marking device according to the embodiment of the invention;
the labels in the figures illustrate:
10. an ultraviolet laser; 20. a beam expander; 30. a galvanometer; 40. a field lens; 50. a plastic sample; 60. a transfer structure; 70. an inkjet coloring device; 71. a printing and coloring device; 72. the staining apparatus is wetted.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an ultraviolet laser assisted plastic surface marking device according to an embodiment of the present invention, which can be applied to a scene of marking a plastic sample 50, and which implements high-contrast marking on plastic surfaces of different colors by using a simple and effective composite laser printing and marking technology for colored and colorless plastic surfaces. Can be widely used for stable batch production.
Referring to fig. 1, the ultraviolet laser assisted plastic surface marking device includes an ultraviolet laser 10, an optical device, and a coloring device, wherein the ultraviolet laser 10 is connected to the optical device, a plastic sample 50 is placed below the optical device, and the coloring device is located at one side of the optical device.
Utilize the ultraviolet laser that ultraviolet laser 10 sent, behind optical device, improve the surface of plastic sample 50, remove look and process out the micro nano structure, afterwards, the micro nano structure after removing the look is colored by the coloring device, forms corresponding sign, and simple structure realizes the mark of the different demands on plastic material surface to the sign of the high contrast on the different colour plastic surface of structure.
In one embodiment, referring to fig. 1, the above-mentioned uv laser assisted plastic surface marking apparatus further includes a conveying structure 60, the conveying structure 60 is located below the optical device, and the plastic sample 50 is placed on the conveying structure 60.
In the present embodiment, the conveying structure 60 includes, but is not limited to, a conveyor chain.
The conveying structure 60 can realize the movement of the plastic sample 50, move from the lower part of the optical device to the lower part of the coloring device for coloring, move the plastic sample 50 fully automatically, and have high efficiency.
In one embodiment, referring to fig. 1, the coloring device is disposed above the transferring structure 60.
Specifically, the optical device includes a beam expander 20, a galvanometer 30, and a field lens 40 connected in sequence.
Ultraviolet laser beams emitted by an ultraviolet laser 10 sequentially pass through a beam expander 20, a galvanometer 30 and a field lens 40, and then are modified, decolored and processed to form a micro-nano structure on the surface of a plastic sample 50.
In the present embodiment, the coloring device includes an inkjet coloring device 70.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an ultraviolet laser assisted plastic surface marking device according to a second embodiment of the present invention, where the second embodiment differs from the first embodiment in that: the coloring device includes a printing coloring device 71.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an ultraviolet laser assisted plastic surface marking device according to a third embodiment of the present invention; the difference between the third embodiment and the first embodiment is that: the coloring means comprises a wet coloring means 72.
The embodiment combines the ultraviolet laser marking and the coloring identification forming technology to realize the multifunctional marking with controllable graphs and selectable colors, adopts a conventional universal mature ultraviolet laser marking system, and has simple equipment; the conventional universal mature liquid-phase ink-jet printing or paint printing coloring system is adopted, so that the equipment is simple; the laser marking system and the coloring system are integrated to form a composite marking system with the polymer surface according to the color design requirement. The above plastic sample 50 includes all of the extruded and stretch-formed plates and pipes except for rubber and silicone rubber. The plastic sample 50 may be red, orange, yellow, green, cyan, blue, violet, and white in color.
Foretell supplementary plastic surface marking device of ultraviolet laser, through setting up ultraviolet laser 10, optical device and colouring device, utilize the ultraviolet laser that ultraviolet laser 10 sent, behind optical device, improve the surface of plastic sample 50, remove the look and process out the micro-nano structure, afterwards, the micro-nano structure after removing the look is colored by colouring device, form corresponding sign, the mark of the different demands on realization plastic material surface is beaten to the sign of the high contrast on the different colour plastic surface of structure.
In an embodiment, referring to fig. 4, fig. 4 is a schematic flow chart of a working method of an ultraviolet laser assisted plastic surface marking device according to an embodiment of the present invention, and the working method of the ultraviolet laser assisted plastic surface marking device includes steps S110 to S120.
S110, after laser beams emitted by the ultraviolet laser 10 pass through an optical device, modifying the surface of the plastic sample 50, removing color on the surface of the plastic sample 50 according to a preset identification pattern, and generating a micro-nano structure.
Referring to fig. 5, in the present embodiment, the micro-nano structure refers to a structure formed by modifying the surface of the plastic sample 50 with an ultraviolet laser beam and removing color on the surface of the plastic sample 50 according to a preset identification pattern.
Specifically, the process of color removal is actually a process of bleaching.
And S120, contacting the surface of the micro-nano structure subjected to color removal with an externally added dye solution, and coloring and curing the micro-nano structure subjected to laser color removal through a coloring device to generate the mark.
Referring to fig. 6, specifically, the bleached micro-nano structure surface is contacted with an external dye solution, and the bleached micro-nano structure area is selectively colored and cured by ink-jet printing, printing or dip-coating printing, so as to generate a permanent mark. The curing process is specifically a drying fixation mode.
In the present embodiment, the wavelength of the laser beam emitted by the ultraviolet laser 10 is 355 nm. The pulse width of the laser beam is nanosecond, subnanosecond or picosecond.
In one embodiment, the repetition rate of the laser beam emitted by the uv laser 10 is 10kHz to 2000 kHz.
It should be noted that, as will be clearly understood by those skilled in the art, the specific implementation process of the working method of the ultraviolet laser assisted plastic surface marking device may refer to the corresponding description in the foregoing embodiment of the ultraviolet laser assisted plastic surface marking device, and for convenience and brevity of description, no further description is provided herein.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. Supplementary plastic surface marking device of ultraviolet laser, its characterized in that, including ultraviolet laser ware, optical device and colouring device, ultraviolet laser ware with optical device connects, the plastics sample has been placed to optical device's below, the colouring device is located one side of optical device.
2. The ultraviolet laser assisted plastic surface marking apparatus as claimed in claim 1 further comprising a transport structure located below the optics and upon which the plastic sample is placed.
3. Ultraviolet laser assisted marking device for plastic surfaces according to claim 2, characterized in that the coloring device is arranged above the conveying structure.
4. The ultraviolet laser assisted plastic surface marking device as claimed in claim 1, wherein the optical device comprises a beam expander, a galvanometer, and a field lens connected in sequence.
5. The ultraviolet laser assisted plastic surface marking device as claimed in claim 1 wherein the coloring means comprises an inkjet coloring means.
6. The ultraviolet laser assisted plastic surface marking device as claimed in claim 1, wherein the coloring device comprises a printing coloring device.
7. Ultraviolet laser assisted marking of plastic surfaces as claimed in claim 1, characterized in that the coloring means comprise wetting coloring means.
8. The working method of the ultraviolet laser assisted plastic surface marking device is characterized by comprising the following steps:
after laser beams emitted by an ultraviolet laser pass through an optical device, modifying the surface of the plastic sample, removing color on the surface of the plastic sample according to a preset identification pattern, and generating a micro-nano structure;
and contacting the surface of the micro-nano structure after color removal with an externally added dye solution, and coloring and curing the micro-nano structure subjected to color removal by laser through a coloring device to generate the mark.
9. The method of claim 8, wherein the uv laser emits a laser beam having a wavelength of 355 nm.
10. The method of claim 8, wherein the repetition rate of the laser beam from the uv laser is 10kHz to 2000 kHz.
CN202111287052.8A 2021-11-02 2021-11-02 Ultraviolet laser-assisted plastic surface marking device and working method thereof Pending CN113977069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111287052.8A CN113977069A (en) 2021-11-02 2021-11-02 Ultraviolet laser-assisted plastic surface marking device and working method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111287052.8A CN113977069A (en) 2021-11-02 2021-11-02 Ultraviolet laser-assisted plastic surface marking device and working method thereof

Publications (1)

Publication Number Publication Date
CN113977069A true CN113977069A (en) 2022-01-28

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN113977069A (en)

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