CN113506523A - Special-effect light-transmitting structure for laser engraving of real wood and manufacturing method thereof - Google Patents

Special-effect light-transmitting structure for laser engraving of real wood and manufacturing method thereof Download PDF

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Publication number
CN113506523A
CN113506523A CN202110852391.XA CN202110852391A CN113506523A CN 113506523 A CN113506523 A CN 113506523A CN 202110852391 A CN202110852391 A CN 202110852391A CN 113506523 A CN113506523 A CN 113506523A
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CN
China
Prior art keywords
light
real wood
layer
shading film
laser engraving
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CN202110852391.XA
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Chinese (zh)
Inventor
杨桂响
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Kunshan Jinyun New Material Technology Co ltd
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Kunshan Jinyun New Material Technology Co ltd
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Priority to CN202110852391.XA priority Critical patent/CN113506523A/en
Publication of CN113506523A publication Critical patent/CN113506523A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/06—Signs, boards or panels, illuminated from behind the insignia using individual cut-out symbols or cut-out silhouettes, e.g. perforated signs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2106/00—Interior vehicle lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

The invention discloses a real wood laser engraving special effect light transmission structure and a manufacturing method thereof, wherein the real wood laser engraving special effect light transmission structure comprises a real wood layer, a shading film, a light transmission basal layer, a backlight module and an MCU mainboard which are sequentially stacked, wherein the shading film is a sheet made of opaque materials, a hollowed-out area is formed on the shading film, a plane light source of the backlight module is transmitted to the surface of the real wood layer through the basal layer and the hollowed-out area on the shading film, the backlight module is electrically connected with a control circuit on the MCU mainboard, the manufacturing method comprises the steps of firstly manufacturing the transparent basal layer, then pasting the shading film on one side of the basal layer, cutting the real wood bark and pasting the surface of the shading film, sequentially polishing, filling, manually polishing, coloring and spraying finish paint on the surface of the wood bark, then mounting the backlight module on the other side of the basal layer, and connecting the backlight module with the control circuit on the MCU mainboard, the invention forms a soft atmosphere lighting effect on the surface of the real wood interior decoration, and is natural and beautiful.

Description

Special-effect light-transmitting structure for laser engraving of real wood and manufacturing method thereof
Technical Field
The invention relates to the field of automotive interior trim, in particular to a real wood laser engraving special-effect light-transmitting structure.
Background
At present, atmosphere lamps on automotive interiors are widely applied, the atmosphere lamps are divided into lamps which are formed on the surfaces of the interiors in an embedding mode, real wood interiors are more and more commonly applied, the embedded atmosphere lamps are obtrusive on the real wood interiors, the overall attractiveness of the real wood interiors is reduced, the real wood materials are poor in light transmission, low in strength and easy to crack, and the embedded atmosphere lamps are difficult to directly use in lampshades of atmosphere lamps.
Disclosure of Invention
In order to overcome the defects, the invention provides a real wood laser engraving special effect light transmission structure which enables the interior decoration of the automobile real wood to be more attractive.
The invention adopts the technical scheme for solving the technical problems that: the utility model provides a real wood laser engraving special effect light transmission structure, includes real wood layer, printing opacity stratum basale, photomask, backlight module and MCU mainboard, the compound photomask of printing opacity stratum basale side fixed surface that transparent material made, the photomask forms the sheet for light-tight material preparation, be formed with the fretwork region on the photomask, real wood layer fixed cover is on the photomask surface, and backlight module fixed mounting is in stratum basale opposite side, and the plane light source that backlight module formed can be through the fretwork region on stratum basale and the photomask and transmit real wood layer surface formation light emitting area, control circuit electric connection on backlight module and the MCU mainboard.
As a further improvement of the invention, the real wood layer is a real wood sheet with the transmittance of 5-15% and the thickness of 0.1-0.3 mm.
As a further improvement of the invention, the wood layer is fixedly adhered to the surface of the shading film through an adhesive layer, and the shading film is fixedly adhered to one side surface of the base layer through the adhesive layer.
As a further improvement of the invention, the backlight module comprises a light source group and a bottom plate, wherein a containing groove matched with the light source module is formed on one side of the light-transmitting substrate layer, which is opposite to the wood layer, the light source group can be just contained in the containing groove, a convex rib structure matched with the containing groove is arranged on the bottom plate, the convex rib structure on the bottom plate can be just inserted into the containing groove of the light-transmitting substrate layer, the light source group is tightly clamped between the convex rib structure on the bottom plate and the inner side wall of the containing groove of the light-transmitting substrate layer, a plurality of screw holes are arranged on the edge of the light-transmitting substrate layer, a plurality of through holes matched with the screw holes are arranged on the edge of the bottom plate, and a connecting bolt is further arranged, and the connecting bolt penetrates through the through holes on the bottom plate and is finally screwed with the screw holes on the light-transmitting substrate layer.
As a further improvement of the invention, the light source group comprises a light source LED lamp panel, a diffusion sheet, a light guide plate and a reflection sheet, wherein the diffusion sheet, the light guide plate and the reflection sheet are sequentially stacked, fixed and positioned to form a light uniformizing module, at least two groups of light uniformizing modules are spliced and connected to form a curved surface structure matched with the surface curve of the light-transmitting substrate layer, the light source LED lamp panel is fixedly attached to the peripheral side wall of the curved surface structure formed by splicing the light uniformizing modules, the light source LED lamp panel emits light towards the direction of the light uniformizing module, and diffused light emitted by the light source LED lamp panel forms uniform light after passing through the diffusion sheet, the light guide plate and the reflection sheet and is projected onto the light-transmitting substrate layer.
As a further improvement of the invention, hollow avoiding structures for mounting automobile parts are correspondingly arranged on the real wood layer, the light-transmitting substrate layer, the shading film and the backlight module, connecting flanges of an inner figure of the hollow avoiding structures of the light-transmitting substrate layer are embedded in the hollow avoiding structures of the real wood layer, the shading film and the light-transmitting substrate layer, and the automobile parts are stopped on the connecting flanges and fixedly connected with the connecting flanges through connecting pieces.
A method for manufacturing a real wood laser engraving special-effect light transmission structure comprises the following steps:
the method comprises the following steps: manufacturing a transparent substrate layer by adopting a transparent material;
step two: selecting a light-impermeable sheet-like light-shielding film;
step three: adhering an opaque shading film to the surface of one side of the transparent substrate layer by using an adhesive, wherein hollow patterns are formed on the opaque shading film;
step four: cutting the real wood veneer to a designed size;
step five: sticking the veneer to the surface of the shading film by using an adhesive;
step six: polishing the surface of the veneer, mixing putty and a curing agent in a ratio of 100:3, and filling the putty mixture on the surface of the veneer;
step seven: manually polishing the surface of the wood veneer after greasing by using 320-mesh abrasive paper;
step eight: coloring the polished surface of the veneer, and standing and drying the colored veneer;
step nine: spraying finish paint on the surface of the dried veneer, and standing and drying in a room with the temperature of 25-35 ℃ and the humidity of less than 60% after finishing spraying paint;
step ten: the other side of the basal layer is fixedly provided with a backlight module;
step eleven: and electrically connecting the backlight module with a control circuit on the MCU mainboard through a circuit.
As a further improvement of the invention, the transparent substrate layer is made of transparent PC, PMMA or ABS plastic, and the shading film is one or a combination of black PC sheet, black pet sheet, black paperboard or shading cloth.
As a further improvement of the present invention, in the third step, the hollow-out pattern is formed on the light-shielding film, and then the light-shielding film is attached to the surface of the base layer, or the light-shielding film without the hollow-out pattern is attached to the surface of the base layer, and then the light-opaque light-shielding film is subjected to laser engraving by using a laser engraving machine, so as to form the hollow-out pattern on the light-opaque light-shielding film.
In the third step, the design outline is formed by respectively hot-pressing the wood veneer and the shading film made of the real wood material by using hot-press forming equipment, and then the shading film and the wood veneer are sequentially compounded on the surface of the substrate layer in a gluing and pressing mode.
The invention has the beneficial effects that: the invention realizes the light transmission function by reducing the thickness of the real leather veneer to about 0.2mm, the light shielding film with hollow patterns made of opaque materials is adhered on the surface of the transparent basal layer and then is compounded with the real wood layer, the real wood layer is supported by the basal layer, the strength of the real wood layer is greatly improved, the defect that the real wood layer is too thin and is easy to break is overcome, after light passes through the hollow patterns on the patterns, a light emitting area with specific patterns is formed on the surface of the real wood layer.
Drawings
FIG. 1 is an exploded view of the structural principle of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is an interlayer structure view of the present invention.
Detailed Description
Example (b): the utility model provides a real wood laser engraving special effect light transmission structure, includes real wood layer 1, printing opacity stratum basale 2, photomask 3, backlight module 14 and MCU mainboard 4, 2 one side fixed surface of printing opacity stratum basale 3 that transparent material made, photomask 3 forms the sheet for light-tight material preparation, be formed with fretwork region 5 on the photomask 3, real wood layer 1 is fixed to be covered in 3 surfaces of photomask, and backlight module 14 fixed mounting is in stratum basale opposite side, and the planar light source that backlight module 14 formed can be through the fretwork region 5 transmission to real wood layer 1 surface formation light emitting area on stratum basale and the photomask 3, control circuit electric connection on backlight module 14 and the MCU mainboard 4.
The light-transmitting base layer 2 supports the real wood layer 1, the strength of the real wood layer 1 is effectively enhanced, the real wood layer 1 is prevented from being broken and damaged, uniform light emitted by the backlight module 14 passes through the transparent base layer and then is transmitted onto the real wood layer 1 through the hollow-out patterns on the shading film 3, an atmosphere lamp effect with patterns is formed on the surface of the real wood layer 1, the on-off and the change of the atmosphere lamp are controlled through a control circuit on the MCU mainboard 4, wherein the hollow-out regions 5 on the shading film 3 optimally form various set patterns, so that a lamp light effect with patterns is formed on the surface of the real wood layer 1, the structure enables the atmosphere lamp effect to be formed on the automobile real wood interior, a lamp strip is not required to be installed on the real wood interior in an embedded mode, the automobile real wood interior decorative patterns are continuous and attractive, the structure realizes that the automobile real wood interior decorative patterns are continuous, and the interior decorative patterns cannot be gladly formed due to the combination of different materials, the interior decoration of the automobile is more beautiful, and after the light is lightened, the light in the automobile is soft and beautiful and is purely natural.
The real wood layer 1 is a real wood sheet with the transmittance of 5-15% and the thickness of 0.1-0.3 mm. When the thickness of the real wood layer 1 is reduced to about 0.2mm, the light-transmitting function can be realized, light emitted by the backlight module 14 is transmitted out, a soft atmosphere lamp is formed on the surface of the real wood layer 1 through the light-emitting area on the automotive interior, and the light is soft and attractive.
The wood layer 1 is fixedly adhered to the surface of the shading film 3 through an adhesive layer, and the shading film 3 is fixedly adhered to one side surface of the substrate layer through the adhesive layer. The light shielding film 3 may also be made of opaque material coated on one side of the substrate layer, and those skilled in the art can select the material according to the actual situation.
The backlight module 14 comprises a light source group and a bottom plate 7, wherein a containing groove matched with the light source module is formed on one side, back to the wood layer 1, of the light-transmitting basal layer 2, the light source group can be just contained in the containing groove, a convex rib structure 8 matched with the containing groove is arranged on the bottom plate 7, the convex rib structure 8 on the bottom plate 7 can be just inserted into the containing groove of the light-transmitting basal layer 2, the light source group is tightly clamped between the convex rib structure 8 on the bottom plate 7 and the inner side wall of the containing groove of the light-transmitting basal layer 2, a plurality of screw holes 9 are formed in the edge of the light-transmitting basal layer 2, a plurality of through holes 10 matched with the through holes are formed in the edge of the bottom plate 7, and connecting bolts are further arranged on the edge of the bottom plate 7 and finally screwed with the screw holes 9 in the light-transmitting basal layer 2.
Bottom plate 7 and printing opacity stratum basale 2 realize the back of inserting through holding recess and protruding muscle structure 8, again by the bolt with bottom plate 7 with printing opacity stratum basale 2 fixed connection together, realized the location to bottom plate 7 and printing opacity stratum basale 2, the light source group is pressed from both sides tight location by the protruding muscle structure 8 on holding recess and the bottom plate 7 on the printing opacity stratum basale 2, the even light that the light source group sent penetrates into in the stratum basale, finally see through photomask 3 and the luminous figure of true wood layer 1 formation, it is clear to give out light, it is pleasing to the eye.
The light source group includes light source LED lamp plate 11, diffusion piece, light guide plate and reflector plate stack fixed positioning in proper order and form even light module 6, and 6 concatenations of at least two sets of even light modules link to each other and form the curved surface structure that matches with printing opacity stratum basale 2 surface curve, and light source LED lamp plate 11 is fixed to be pasted and is located on the curved surface structure periphery lateral wall that even light module 6 concatenations formed, light source LED lamp plate 11 is luminous towards even light module 6 directions, and the divergent light that light source LED lamp plate 11 sent forms even light behind diffusion piece, light guide plate and the reflector plate and projects on printing opacity stratum basale 2. The uniform light is transmitted to the real aluminum layer through the light-transmitting substrate layer 2, a uniform bright area is formed on the real aluminum layer, light rays enter the light source LED lamp panel 11 of the light source group from the side edge, the divergent light is processed by the light uniformizing module 6 to form uniform light, the uniform light is finally transmitted through micropores of the real aluminum layer, and the light source group can also be of a direct type light source structure.
The hollow-out avoiding structure 12 for automobile parts is correspondingly arranged on the real wood layer 1, the light-transmitting basal layer 2, the shading film 3 and the backlight module 14, the connecting flange 13 of the hollow-out avoiding structure 12 inner figure of the light-transmitting basal layer 2 is embedded in the hollow-out avoiding structure 12 of the real wood layer 1, the shading film 3 and the light-transmitting basal layer 2, and the automobile parts are stopped on the connecting flange 13 and are fixedly connected with the connecting flange 13 through a connecting piece.
A method for manufacturing a real wood laser engraving special-effect light transmission structure comprises the following steps:
the method comprises the following steps: manufacturing a transparent substrate layer by adopting a transparent material;
step two: selecting a light-impermeable sheet-like light-shielding film 3;
step three: adhering an opaque shading film 3 to one side surface of the transparent substrate layer by using an adhesive, wherein hollow patterns are formed on the opaque shading film 3;
step four: cutting the real wood veneer to a designed size;
step five: sticking the veneer to the surface of the shading film 3 by adopting an adhesive;
step six: polishing the surface of the veneer, mixing putty and a curing agent in a ratio of 100:3, and filling the putty mixture on the surface of the veneer;
step seven: manually polishing the surface of the wood veneer after greasing by using 320-mesh abrasive paper;
step eight: coloring the polished surface of the veneer, and standing and drying the colored veneer;
step nine: spraying finish paint on the surface of the dried veneer, and standing and drying in a room with the temperature of 25-35 ℃ and the humidity of less than 60% after finishing spraying paint;
step ten: the other side of the base layer is fixedly provided with a backlight module 14;
step eleven: the backlight module 14 is electrically connected with the control circuit on the MCU main board 4 through a circuit.
The hollow pattern is formed on the lightproof shading film 3, light can be transmitted to the surface of the real wood layer 1 through the hollow pattern to form a luminous area with pattern effect, the surface of the wood veneer is processed in the manufacturing process, so that the wood veneer and the real leather interior are perfectly combined into a whole, the surface is smooth and attractive, the soft luminous pattern is transmitted, the appearance is attractive and elegant, and the automobile interior looks higher and elegant)
The transparent substrate layer is made of transparent PC, PMMA or ABS plastic, and the shading film 3 is one or a combination of black PC sheet, black pet sheet, black paperboard or shading cloth. The base layer also can be by other printing opacity plastics carry out the injection moulding in mould, photomask 3 also is not restricted to above-mentioned opaque sheet, if also can be opaque wooden, opaque metal etc. material preparation forms, photomask 3 still can be for coating, spraying or the opaque material of impression in transparent base layer surface, like opaque paint, the fretwork pattern can be for gluing the sticker formation on transparent base layer temporarily, treat the paint drying back, tear the sticker can, this kind all is that technical staff in the field thinks equally replacement structure according to this patent very easily, belong to this patent protection scope.
In the third step, the hollow pattern is firstly formed on the shading film 3, then the shading film 3 is pasted on one side surface of the substrate layer, or the shading film 3 without the hollow pattern is firstly pasted on one side surface of the substrate layer, then the lightproof shading film 3 is subjected to laser engraving by adopting a laser engraving machine, and the hollow pattern is formed on the lightproof shading film 3. The hollow patterns on the light shielding film 3 can be formed by laser processing, can also be formed by stamping and cutting, and the like, and the hollow patterns can be selected according to actual needs, material characteristics of the light shielding film 3 and the like.
In the third step, firstly, the veneer and the shading film 3 made of the real wood are respectively hot-pressed to form a design outline by using hot-press forming equipment, and then the shading film 3 and the veneer are sequentially compounded on the surface of the substrate layer in a gluing and pressing mode.

Claims (10)

1. The utility model provides a real wood laser engraving special effect light transmission structure which characterized in that: including real wood layer (1), printing opacity stratum basale (2), photomask (3), backlight module (14) and MCU mainboard (4), the compound photomask of printing opacity stratum basale side fixed surface that transparent material made, the photomask forms the sheet for light-tight material preparation, be formed with fretwork region (5) on the photomask, real wood layer fixed cover is in photomask surface, backlight module fixed mounting in stratum basale opposite side, and the planar light source that backlight module formed can be through the fretwork region transmission on stratum basale and the photomask to real wood surface formation light emitting area, control circuit electric connection on backlight module and the MCU mainboard.
2. The real wood laser engraving special effect light transmission structure according to claim 1, characterized in that: the real wood layer is a real wood sheet with the transmittance of 5-15% and the thickness of 0.1-0.3 mm.
3. The real wood laser engraving special effect light transmission structure according to claim 1, characterized in that: the real wood layer is fixedly adhered to the surface of the shading film through the adhesive layer, and the shading film is fixedly adhered to the surface of one side of the base layer through the adhesive layer.
4. The real wood laser engraving special effect light transmission structure according to claim 1, characterized in that: the backlight module comprises a light source group and a bottom plate (7), wherein a containing groove matched with the light source module is formed in one side, back to the wood layer, of the light-transmitting basal layer, the light source group can be exactly contained in the containing groove, a convex rib structure (8) matched with the containing groove is arranged on the bottom plate, the convex rib structure on the bottom plate can be exactly inserted into the containing groove of the light-transmitting basal layer, the light source group is tightly clamped between the inner side wall of the containing groove of the convex rib structure on the bottom plate and the light-transmitting basal layer, a plurality of screw holes (9) are formed in the edge of the light-transmitting basal layer, a plurality of through holes (10) matched with the light-transmitting basal layer are formed in the edge of the bottom plate, and a connecting bolt is further arranged, and the connecting bolt penetrates through the through holes in the bottom plate and is finally connected with the screw holes in the light-transmitting basal layer in a screwed mode.
5. The real wood laser engraving special effect light transmission structure according to claim 4, characterized in that: the light source group includes light source LED lamp plate (11), diffusion piece, light guide plate and reflector plate stack fixed positioning in proper order and form even light module (6), and at least two sets of even light module concatenations form the curved surface structure that matches with printing opacity stratum basale surface curve, and light source LED lamp plate is fixed to be pasted and is located on the curved surface structure periphery lateral wall that even light module concatenation formed, light source LED lamp plate is luminous towards even light module direction, and the divergent light that light source LED lamp plate sent forms even light behind diffusion piece, light guide plate and the reflector plate and projects on the printing opacity stratum basale.
6. The real wood laser engraving special effect light transmission structure according to claim 1, characterized in that: the hollow-out avoiding structure (12) for the installation of the automobile parts is correspondingly arranged on the real wood layer, the light-transmitting basal layer, the shading film and the backlight module, the hollow-out of the light-transmitting basal layer avoids a connecting flange (13) of an inner figure of the structure, the automobile parts are embedded in the hollow-out avoiding structure of the real wood layer, the shading film and the light-transmitting basal layer, and the automobile parts are stopped on the connecting flange and are fixedly connected with the connecting flange through a connecting piece.
7. The method for manufacturing the special-effect light-transmitting structure through laser engraving of real wood as claimed in claim 1 is characterized in that: the method comprises the following steps:
the method comprises the following steps: manufacturing a transparent substrate layer by adopting a transparent material;
step two: selecting a light-impermeable sheet-like light-shielding film;
step three: adhering an opaque shading film to the surface of one side of the transparent substrate layer by using an adhesive, wherein hollow patterns are formed on the opaque shading film;
step four: cutting the real wood veneer to a designed size;
step five: sticking the veneer to the surface of the shading film by using an adhesive;
step six: polishing the surface of the veneer, mixing putty and a curing agent in a ratio of 100:3, and filling the putty mixture on the surface of the veneer;
step seven: manually polishing the surface of the wood veneer after greasing by using 320-mesh abrasive paper;
step eight: coloring the polished surface of the veneer, and standing and drying the colored veneer;
step nine: spraying finish paint on the surface of the dried veneer, and standing and drying in a room with the temperature of 25-35 ℃ and the humidity of less than 60% after finishing spraying paint;
step ten: the other side of the basal layer is fixedly provided with a backlight module;
step eleven: and electrically connecting the backlight module with a control circuit on the MCU mainboard through a circuit.
8. The method for manufacturing the real wood laser engraving special effect light transmission structure according to claim 7, is characterized in that: the transparent substrate layer is made of transparent PC, PMMA or ABS plastic, and the shading film is one or a combination of a black PC sheet, a black pet sheet, a black paperboard or shading cloth.
9. The method for manufacturing the real wood laser engraving special effect light transmission structure according to claim 7, is characterized in that: in the third step, the hollow patterns are firstly formed on the shading film, then the shading film is adhered to one side surface of the substrate layer, or the shading film without the hollow patterns is firstly adhered to one side surface of the substrate layer, then the lightproof shading film is subjected to laser engraving by adopting a laser engraving machine, and hollow patterns are formed on the lightproof shading film.
10. The method for manufacturing the real wood laser engraving special effect light transmission structure according to claim 6, is characterized in that: in the third step, firstly, the veneer and the shading film of the real wood material are respectively hot-pressed and molded to form a design outline by using hot-press molding equipment, and then the shading film and the veneer are sequentially compounded on the surface of the substrate layer in a gluing and pressing mode.
CN202110852391.XA 2021-07-27 2021-07-27 Special-effect light-transmitting structure for laser engraving of real wood and manufacturing method thereof Pending CN113506523A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114309970A (en) * 2022-03-14 2022-04-12 宁波劳伦斯汽车内饰件有限公司 Laser engraving method for automotive interior part with undried adhesive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114309970A (en) * 2022-03-14 2022-04-12 宁波劳伦斯汽车内饰件有限公司 Laser engraving method for automotive interior part with undried adhesive
CN114309970B (en) * 2022-03-14 2022-07-15 宁波劳伦斯汽车内饰件有限公司 Laser engraving method for automotive interior part with undried adhesive

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