CN110126261B - Method for 3D printing of adhesive layer by display or touch module - Google Patents

Method for 3D printing of adhesive layer by display or touch module Download PDF

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Publication number
CN110126261B
CN110126261B CN201910503442.0A CN201910503442A CN110126261B CN 110126261 B CN110126261 B CN 110126261B CN 201910503442 A CN201910503442 A CN 201910503442A CN 110126261 B CN110126261 B CN 110126261B
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China
Prior art keywords
display
touch module
printing
film tearing
plate
Prior art date
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Active
Application number
CN201910503442.0A
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Chinese (zh)
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CN110126261A (en
Inventor
黄奕宏
刘驰
秦超
刘瑶林
方明登
韩宁宁
曹术
陈锦杰
杨杰
庄庆波
林锋
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Shenzhen Sking Intelligent Equipment Co Ltd
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Shenzhen Sking Intelligent Equipment Co Ltd
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Priority to CN201910503442.0A priority Critical patent/CN110126261B/en
Publication of CN110126261A publication Critical patent/CN110126261A/en
Application granted granted Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Ink Jet (AREA)

Abstract

The invention relates to the technical field of display or touch modules, and discloses a method for 3D printing of a glue layer by using a display or touch module, which comprises the following steps: 1) tearing the protective film on the connecting end face of the display or touch module; 2) transferring the display or touch module to a printing platform by using a transfer board; 3) performing multiple linear path scanning along the length direction and the width direction of the display or touch module by using the laser head; 4) the printing platform moves the display or touch module into the glue printing equipment, and the controller controls the glue spray heads to spray glue on the connecting end surfaces of the display or touch module to form glue layers; 5) the printing platform sends the display or touch module printed with the adhesive layer into curing equipment, and the curing equipment cures the adhesive layer; the method for 3D printing of the adhesive layer by the display or touch module provided by the invention has the advantages that the upper surface of the adhesive layer is ensured to be flat, the defect of unevenness is avoided, and the local deformation of the display or touch module is avoided.

Description

Method for 3D printing of adhesive layer by display or touch module
Technical Field
The invention relates to the technical field of display or touch modules, in particular to a method for 3D printing of a glue layer by using a display or touch module.
Background
With the development of science and technology, more and more electronic products are developed in visualization and touch control, such as mobile phones, touch control display screens and the like, and more electronic products are provided with display or touch control modules to realize the functions of liquid crystal display or touch control.
At present, a display or touch module has a connection end face arranged upward, and an edge area of the connection end face can be connected with a gold finger, a flexible circuit, a metal wire and the like, so that a height difference exists between a middle area and the edge area of the connection end face, and the edge area itself.
In the prior art, in the assembling process of the display or touch module, the connecting end face of the display or touch module needs to be coated with a glue layer, so that the connecting end face of the display or touch module can be connected with liquid crystal glass and the like. However, because there is a difference in height in the middle area and the edge area of the connection end face of the display or touch module, after the glue layer is applied on the connection end face, the upper surface of the upward arranged glue layer has a defect of unevenness, which causes a defect in the assembly of the display or touch module, and greatly reduces the quality of the electronic product.
Disclosure of Invention
The invention aims to provide a method for 3D printing of a glue layer of a display or touch module, and aims to solve the problem that the glue layer on the connecting end surface of the display or touch module is uneven in the prior art.
The invention discloses a method for 3D printing of an adhesive layer by a display or touch module, which comprises the following steps
1) The display or touch module is arranged on the film tearing platform, and the protective film on the connecting end face of the display or touch module is torn;
2) transferring the display or touch module with the film torn to a printing platform by using a transfer plate, wherein the display or touch module is adsorbed on the printing platform;
3) performing multiple linear path scanning along the length direction and the width direction of a display or touch module on the printing platform by using a laser head, detecting initial detection height data of a middle area and an edge area of a connecting end surface of the display or touch module, and feeding back the initial detection height data to a controller;
4) the display or touch module is moved into a glue printing device by the printing platform, the glue printing device is provided with a plurality of glue nozzles arranged downwards, and the controller controls the glue nozzles to spray glue on the connecting end face of the display or touch module to form a glue layer;
5) and the printing platform sends the display or touch module with the printed adhesive layer into the curing equipment, and the curing equipment cures the adhesive layer.
Further, after the step 5), the laser head performs recheck scanning on the display or touch module with the cured adhesive layer on the printing platform, the laser head performs multiple linear path scanning along the length direction and the width direction of the display or touch module, and the scanning path of the laser head is consistent with the initial detection scanning path of the laser head in the step 3).
Further, in the step 3), the position of the display or touch module on the printing platform is detected and corrected by using a correction structure; the correcting structure comprises four cameras arranged downwards, the four cameras respectively detect the coordinate positions of four corners of the display or touch module and feed detected data back to the controller, and the controller obtains the central position data and the inclination angle data of the display or touch module.
Further, in the step 1), before the display or touch module is subjected to film tearing, a protective film on the display or touch module is cleaned by using an air knife structure; the air knife structure is internally provided with an air suction channel and an air blowing channel, the lower end part of the air knife structure is provided with an air blowing port and an air suction port, the air blowing port is communicated with the air blowing channel, the air suction port is communicated with the air suction channel, and the air blowing port and the air suction port are arranged at intervals in sequence along the moving direction of the display or touch module.
Further, the film tearing platform comprises a film tearing moving frame and a film tearing rotating frame, the film tearing moving frame is arranged on the track, and the film tearing rotating frame is rotatably connected to the upper part of the film tearing moving frame; the film tearing rotating frame is provided with a film tearing needle plate, and the film tearing needle plate is provided with a film tearing suction plate; the film tearing suction plate is internally provided with a film tearing vacuum suction hole and a film tearing through hole, and the film tearing needle plate is convexly provided with a film tearing thimble which moves up and down along the film tearing through hole;
in the step 1), the display or touch module is placed on a film tearing suction plate of a film tearing platform, and is adsorbed and fixed through a film tearing vacuum suction hole; when the protective film on the display or touch module is torn off, the film tearing thimble moves upwards along the film tearing through hole and pushes the display or touch module to separate from the film tearing suction plate, and the display or touch module is suspended above the film tearing suction plate; in step 2), the transfer board is inserted between the film tearing suction board and the display or touch module, so as to adsorb the display or touch module, and the display or touch module is transferred to the tape printing platform, and meanwhile, the film tearing thimble moves downwards and retracts into the film tearing through hole.
Furthermore, the film tearing structure comprises a film tearing moving plate which moves up and down, a horizontally arranged roller is arranged at the lower part of the film tearing moving plate, two film tearing clamping blocks are arranged at the lower part of the film tearing moving plate, a film clamping gap is formed between the two film tearing clamping blocks, and the two film tearing clamping blocks are arranged on the side edge of the roller; in step 1), the dyestripping movable plate moves down to the top of dyestripping platform, dyestripping platform adjustment position, the roller bearing supports the corner of the protection film on demonstration or the touch-control module, through the roll roller bearing, drives the corner book of protection film is on the roller bearing, just the protection film gets into two in the dyestripping clearance of dyestripping clamp splice, two the protection film is cliied to the dyestripping clamp splice, along with the removal of dyestripping platform, the protection film is followed show or the connection terminal surface of touch-control module breaks away from.
Furthermore, the transfer plate is horizontally arranged and connected to a horizontally moving seat, the moving seat is provided with a connecting plate which is provided with a longitudinal moving part, the inner side of the transfer plate is connected to the connecting plate, a plurality of hollow strips which are arranged at intervals are arranged in the transfer plate, the hollow strips penetrate through the outer side of the transfer plate, the transfer plate is divided into a plurality of laths which are arranged at intervals by the hollow strips, and a vacuum chuck for adsorbing a display or touch module is arranged on the plate body; in the step 2), when the transfer board is inserted between the film tearing suction board and the display or touch module, the film tearing thimble is arranged in the hollow strip.
Further, the printing platform comprises a printing moving frame and a printing rotating frame, the printing moving frame is arranged on the track, and the printing rotating frame is rotatably connected to the upper part of the printing moving frame; a printing needle plate is arranged on the printing rotating frame, and a printing suction plate is arranged on the printing needle plate; a printing vacuum suction hole and a printing through hole are formed in the printing suction plate, and a printing thimble which moves up and down along the printing through hole is convexly arranged on the printing needle plate;
in step 2), after the transfer board adsorbs the display or touch module and is arranged on the print suction board of the printing platform, the print thimble moves upwards along the print through hole and pushes the display or touch module to separate from the transfer board, the display or touch module is suspended above the transfer board, the transfer board withdraws from between the print suction board and the display or touch module, the print thimble drives the display or touch module to move downwards until the display or touch module is adsorbed on the print suction board, and the print thimble retracts into the print through hole.
Further, the printing suction plate is a ceramic plate, and the aperture of the printing vacuum suction hole is smaller than that of the film tearing vacuum suction hole.
Further, the curing equipment comprises a curing lamp and two rows of shielding plates, a spacing area is formed between the two rows of shielding plates, the shielding plates are provided with a plurality of shielding plates which are arranged in a spacing row shape, the shielding plates move towards or away from the spacing area, and the curing lamp is positioned above the spacing area;
in the step 5), after the printing platform enters the spacing area, the controller controls the corresponding shielding plate to move towards the spacing area according to the thickness data of the adhesive layer on the display or touch module to shield the edge area of the display or touch module, the curing lamp heats the adhesive layer from top to bottom, and after the adhesive layer is heated to a set time, the shielding plate moves away from the spacing area to expose the whole adhesive layer, and the curing lamp continues to heat the adhesive layer.
Compared with the prior art, the method for 3D printing of the glue layer by the display or touch module, provided by the invention, has the advantages that the laser head is used for detecting the connecting end face of the display or touch module to obtain the initial detection height data, and then the controller controls the glue spray heads of the glue printing equipment to correspondingly spray glue according to the initial detection height data, so that the upper surface of the glue layer formed after spraying is ensured to be flat, and the defect of unevenness is avoided; in addition, the display or touch module after the film is torn on the film tearing platform is transferred to the printing platform by the transfer plate, so that the display or touch module is prevented from local deformation in the process of spraying the glue.
Drawings
Fig. 1 is a schematic perspective view of a display or touch module 3D adhesive layer printing apparatus provided in the present invention;
FIG. 2 is a schematic perspective view of a tear platform provided by the present invention;
FIG. 3 is a schematic perspective view of a portion of a tear platform provided by the present invention;
FIG. 4 is a schematic perspective view of a display or touch module on a tear-off platform being torn off by the tear-off structure according to the present invention;
FIG. 5 is a schematic perspective view of a tear film construction provided by the present invention;
FIG. 6 is an enlarged schematic view at A of FIG. 5;
FIG. 7 is a schematic perspective view of a transfer plate provided in accordance with the present invention;
FIG. 8 is a schematic perspective view of a printing platform provided by the present invention;
FIG. 9 is a schematic perspective view of a portion of a printing platform provided by the present invention;
FIG. 10 is a schematic perspective view of a glue printing apparatus provided in accordance with the present invention;
FIG. 11 is a schematic perspective view of a curing apparatus provided by the present invention;
fig. 12 is a schematic top view of a curing apparatus provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-12, preferred embodiments of the present invention are provided.
The method for 3D printing the adhesive layer on the display or touch module 20 provided in this embodiment is used for 3D printing the adhesive layer on the connecting end surface of the display or touch module 20.
A method for 3D printing of a glue layer by a display or touch module comprises the following steps:
1) the display or touch module 20 is placed on the film tearing platform 12, a protective film is attached to the connecting end face of the display or touch module 20, and the display or touch module 20 is subjected to film tearing operation, namely the protective film on the connecting end face of the display or touch module 20 is torn off;
2) transferring the display or touch module 20 with the film torn off onto the printing platform 13 by using the transfer plate 11, wherein the display or touch module 20 is adsorbed on the printing platform 13;
3) performing multiple linear path scanning along the length direction and the width direction of the display or touch module 20 by using the laser head, detecting the initial detection height data of the middle area and the edge area of the connecting end surface of the display or touch module 20, further obtaining the initial detection height data of the height difference of the connecting end surface of the display or touch module 20, and feeding back the detected initial detection height data to the controller;
4) the printing platform 13 moves into the glue printing equipment 14, a plurality of glue spray heads arranged downwards are arranged in the glue printing equipment 14, the controller controls the glue spray heads to spray glue on the connecting end face of the display or touch module 20 according to the initial detection height data detected by the laser heads, and a glue layer is formed on the connecting end face of the display or touch module 20;
5) the printing platform 13 sends the display or touch module 20 with the printed adhesive layer into the curing equipment 15, and the curing equipment 15 cures the adhesive layer;
according to the method for 3D printing of the glue layer by the display or touch module, the laser head is used for detecting the connecting end face of the display or touch module 20 to obtain the initial detection height data, and then the controller controls the glue spray heads of the glue printing equipment 14 to correspondingly spray glue according to the initial detection height data, so that the upper surface of the glue layer formed after spraying is smooth, and the defect of uneven height is avoided; in addition, the display or touch module 20 after the film is torn on the film tearing platform 12 is transferred to the printing platform 13 by using the transfer plate 11, so that the display or touch module 20 is prevented from local deformation in the process of spraying the glue.
The method for 3D printing of the adhesive layer by the display or touch module further comprises a step 6), the laser head performs recheck scanning on the display or touch module 20 with the cured adhesive layer by the printing platform 13, the laser head performs multiple linear path scanning along the length direction and the width direction of the display or touch module 20, recheck height data of the adhesive layer on the connecting end face of the display or touch module 20 are detected, and then the printed adhesive layer height data of the adhesive layer are obtained according to the primary check height data of the connecting end face and the recheck height data of the adhesive layer.
The scanning path of the laser head in the step 3) is consistent with the scanning path of the laser head in the step 6), so that the controller can judge and compare the height data according to the initial detection height data and the re-detection height data of the same position, the thickness of the glue layer at the position can be accurately obtained, and the glue layer printing can be accurately realized.
In the step 3), the position of the display or touch module 20 on the printing platform 13 is corrected, and the position of the display or touch module 20 is detected and corrected through the correction structure; the correction structure comprises four cameras arranged downwards, the four cameras respectively detect the coordinate positions of four corners of the display or touch module 20 and feed detection data back to the controller, so that the central position data and the inclination angle data of the display or touch module 20 are obtained, and the controller controls the printing platform 13 to move as required to adjust the position of the display or touch module 20.
The embodiment also provides a display or touch module 3D adhesive layer printing device, which is used for implementing the display or touch module 3D adhesive layer printing method, and comprises the film tearing platform 12, the film tearing structure 10, the transfer plate 11, the printing platform 13, the glue printing device 14, the curing device 15 and the laser head.
The display or touch module 20 adhered with the protective film is loaded on the film tearing platform 12 and adsorbed on the film tearing platform 12, the protective film on the display or touch module 20 is torn off by the film tearing structure 10, the display or touch module 20 on the film tearing platform 12 is transferred to the printing platform 13 by the transfer plate 11 and adsorbed on the printing platform 13, the laser head performs a plurality of times of linear scanning on the connecting end surface of the display or touch module 20 on the printing platform 13 to obtain initial detection height data, the controller obtains the initial detection height data, after the display or touch module 20 is moved to the glue printing equipment 14 by the printing platform 13, the controller controls a plurality of glue nozzles of the glue printing equipment 14 to spray glue on the connecting end surface of the display or touch module 20, namely 3D printing glue layers, the controller correspondingly controls different spraying amounts and spraying speeds of the glue nozzles at different positions according to the initial detection height data detected by the laser head, so that glue with different thicknesses can be sprayed according to different positions on the connecting end surface; the display or touch module 20 after being sprayed with the adhesive layer is moved to the curing device 15 by the printing platform 13, and the curing device 15 cures the adhesive layer on the connecting end face.
According to the display or touch module 3D adhesive layer printing equipment, the display or touch module 20 after the film is torn on the film tearing platform 12 is transferred onto the printing platform 13 through the transfer plate 11, the display or touch module 20 performs adhesive layer 3D printing on the printing platform 13, and the phenomenon that the display or touch module 20 is locally deformed in the adhesive layer 3D printing process is avoided; utilize radium-shine head to the demonstration after the dyestripping or touch module's the connection terminal surface and carry out many straight line path scanning, obtain the initial survey height data, the glue spraying of the different glue shower nozzles of glue printing apparatus 14 can then be controlled to the correspondence to the controller for the upper surface of glue film that forms on the connection terminal surface of demonstration or touch module 20 levels, avoids appearing the defect of height unevenness.
In this embodiment, in the step 1), before the display or touch module 20 performs the film tearing operation, the air knife structure is used to clean the protective film on the display or touch module 20, so that dust and the like on the protective film are prevented from falling onto the connection end surface of the display or touch module 20 during the film tearing process.
Air blowing channel and air suction channel are equipped with in the air knife structure, the air knife structure has the lower tip of arranging down, this lower tip shows down or the protection film on the touch module 20 arranges, the lower tip of air knife structure has air blowing mouth and induction port, air blowing mouth intercommunication air blowing channel, induction port intercommunication air suction channel, and along the moving direction of demonstration or touch module, air blowing mouth and induction port are according to preface interval arrangement, like this, after air blowing mouth blows up the dust etc. on with the protection film, the induction port then in time will be raised the dust etc. inhale in the air suction channel.
Along the direction from bottom to top, the passageway of blowing is the slope form and arranges, and deviates the suction channel and arranges, like this, when blowing, can guarantee that the mouth of blowing blows towards demonstration or touch module 20 moving direction, and the dust of being convenient for to raise etc. is inhaled by the induction port.
The suction channel is vertical form and arranges, and has the dust storage chamber in the air knife structure, and the skew suction channel in dust storage chamber arranges, and with the suction channel intercommunication, like this, through the inspiratory dust of induction port etc. then can be accomodate in the dust storage intracavity.
In this embodiment, the lower end of the air knife structure has an upwardly concave notch region, and the air suction port of the air suction channel is formed in the notch region, so that the air suction port is favorable for sucking the raised dust.
The film tearing platform 12 comprises a film tearing moving frame 121 and a film tearing rotating frame 122, wherein the film tearing moving frame 121 is arranged on a track, so that the film tearing moving frame 121 can move along the track; the film tearing rotating frame 122 is rotatably connected to the upper portion of the film tearing moving frame 121, such that the film tearing rotating frame 122 can horizontally rotate relative to the film tearing moving frame 121, and the display or touch module 20 is disposed on the film tearing rotating frame 122.
The film tearing rotating frame 122 is provided with a film tearing needle plate 123 and a film tearing suction plate 124, the film tearing needle plate 123 is connected to the film tearing rotating frame 122, the film tearing suction plate 124 is connected to the film tearing needle plate 123, and the film tearing suction plate 124, the film tearing needle plate 123 and the film tearing rotating frame 122 are sequentially arranged from top to bottom in an overlapping manner.
The film tearing suction plate 124 is provided with a film tearing vacuum suction hole 125, the film tearing suction plate 124 is provided with a film tearing suction surface which is arranged upwards, and the film tearing vacuum suction hole 125 penetrates through the film tearing suction surface; and a film tearing through hole 126 is arranged in the film tearing suction plate 124, and the film tearing through hole 126 penetrates through the film tearing suction plate 124.
The film tearing needle plate 123 is convexly provided with a plurality of film tearing thimbles 127, the film tearing thimbles 127 penetrate through the film tearing through holes 126, and the film tearing thimbles 127 move up and down in the film tearing through holes 126 under the driving of a power element, can be contained in the film tearing through holes 126 and also can protrude upwards on the film tearing suction surface.
After the display or touch module 20 is placed on the film-tearing suction plate 124, it is attached to the film-tearing suction surface of the film-tearing suction plate 124, and at this time, the film-tearing vacuum suction hole 125 can suck the display or touch module 20 on the film-tearing suction surface of the film-tearing suction plate 124, and then the film-tearing structure 10 tears off the protective film.
After the film tearing structure 10 finishes film tearing, the film tearing thimble 127 extends upward out of the film tearing through hole 126 and extends to the film tearing suction surface of the film tearing suction plate 124 to jack up the display or touch module 20, at this time, the display or touch module 20 is suspended above the film tearing suction surface of the film tearing suction plate 124, so in the step 2), the transfer plate 11 can be inserted between the display or touch module 20 and the film tearing suction plate 124 to lift up the display or touch module 20, and then the display or touch module 20 is transferred to the printing platform 13, at this time, the film tearing thimble 127 contracts to the inside of the film tearing through hole 126.
In this embodiment, the film-tearing thimble 127 has an upper end portion for jacking up the display or touch module 20, and the upper end portion of the film-tearing thimble 127 is wrapped with a film-tearing encapsulation, so as to prevent the film-tearing thimble 127 from damaging the display or touch module 20 in the process of jacking up the display or touch module 20.
The film tearing and encapsulating rubber has a film tearing and jacking part coated at the top of the film tearing thimble 127, the film tearing and jacking part is arranged in an arc surface shape and is arranged in a big-end-up shape, so that elastic deformation of the film tearing and jacking part for film tearing and encapsulating rubber is facilitated, and a protection effect is further achieved on the display or touch module 20.
In this embodiment, the lower portion of the film tearing thimble 127 extends to the lower portion of the film tearing needle plate 123, and is connected to the power element, the power element drives the film tearing thimble 127 to move up and down, and the upper portion of the film tearing thimble 127 extends to the upper portion of the film tearing needle plate 123 and movably penetrates through the film tearing through hole 126 of the film tearing suction plate 124.
The film tearing bosses are arranged on the film tearing needle plate 123, and the film tearing thimble 127 movably penetrates through the film tearing bosses, that is, the film tearing bosses surround the periphery of the film tearing thimble 127, so that the verticality of the film tearing thimble 127 can be ensured in the process that the power element drives the film tearing thimble 127 to move up and down.
In this embodiment, the film tearing structure 10 includes the film tearing movable plate 100 that reciprocates by power drive, and the lower part of the film tearing movable plate 100 is provided with the roller 101 of horizontal arrangement, and like this, when needs the film tearing, the film tearing movable plate 100 moves down to the top of the film tearing platform 12, and the film tearing platform 12 adjustment position, the corner of protection film is being butted to the roller 101, and like this, through the rotation of roller 101, drive the protection film and tear the roll, and like this, along with the removal of film tearing platform 12, then can realize tearing the operation of falling the protection film.
The lower part of the film tearing moving plate 100 is provided with two film tearing clamping blocks 102, a film clamping gap 103 is arranged between the two film tearing clamping blocks 102, the two film tearing clamping blocks 102 are arranged on the side edge of the roller 101, the formed film clamping gap 103 is also arranged on the side edge of the roller 101, therefore, after the roller 101 drives the corner of the protective film to roll, the corner of the protective film also enters the film clamping gap 103, and thus, the protective film is clamped by the two film tearing clamping blocks 102, and the protective film is further convenient to tear off.
In this embodiment, the film clamping gap 103 is arranged along the axial direction of the roller 101 and aligned with the side edge of the roller 101, so that the edge corner of the rolled protective film can enter the film clamping gap 103 conveniently.
The two film tearing clamping blocks 102 move towards or away from each other, so that the size of the film clamping gap 103 is adjusted. In addition, the film sandwiching gap 103 is arranged in an arc shape in a direction from bottom to top, and is curved in an arc shape in a direction deviating from the roller 101.
In this embodiment, the transfer plate 11 is connected to the movable base 110, the movable base 110 can move horizontally, the movable base 110 is provided with a connecting plate 111 moving longitudinally, the transfer plate 11 is connected to the connecting plate 111 and is arranged horizontally, and the transfer plate is arranged to extend outwards from the movable base 110.
The inner side of the transit plate 11 is connected to the connecting plate 111, and the outer side of the transit plate 11 extends outwards; the middle rotating plate 11 is provided with a plurality of hollow strips 115 arranged at intervals, the hollow strips 115 penetrate through the outer side of the middle rotating plate 11 and are provided with outer openings communicated with the hollow strips 115, so that after the display or touch module 20 is jacked up by the film tearing thimble 127, the middle rotating plate 11 is inserted between the film tearing platform 12 and the display or touch module 20, at the moment, the thimble enters the hollow strips 115 of the middle rotating plate 11, and thus, position interference between the middle rotating plate 11 and the film tearing thimble 127 is avoided.
In this embodiment, the plurality of hollow-out strips 115 are arranged in a straight strip shape, and the plurality of hollow-out strips 115 are arranged in parallel, and of course, according to the arrangement condition of the film tearing thimble 127, the arrangement shape of the plurality of hollow-out strips 115 is correspondingly set, which can be specifically determined according to actual needs.
The transfer board 11 includes an insertion section and a connection section 112, the insertion section is connected to the outer side of the connection section 112, the inner side of the connection section 112 is connected to the connection plate 111, and the connection between the insertion section and the connection section 112 is in a width reduction transition, that is, the width of the insertion section is greater than the width of the connection section 112, so that the insertion operation of the insertion section of the transfer board 11 is facilitated.
In this embodiment, be formed with a plurality of fretwork strips 115 in the transit board 11, a plurality of fretwork strips 115 are cut apart into the lath 113 of a plurality of interval arrangements with the transit board 11, and embedded in the lath 113 has a plurality of vacuum chuck 114, and vacuum chuck 114 has the sucking disc terminal surface of arranging up, and the sucking disc terminal surface shows on lath 113's up end, and arranges with lath 113's up end parallel and level, is provided with the sucking disc mouth on the sucking disc terminal surface.
Thus, after the display or touch module 20 is placed on the transfer board 11, the suction cup end surfaces of the vacuum suction cups 114 of the plurality of slats 113 abut against the lower surface of the display or touch module 20, and the display or touch module 20 is sucked by the suction cup openings, so as to prevent the display or touch module 20 from falling off during the process of transferring the display or touch module 20.
In order to better suck the display or touch module 20, a plurality of the vacuum suction cups 114 are disposed along the length direction of the strip 113, and the vacuum suction cups 114 are spaced along the length direction of the strip 113.
In this embodiment, be formed with a plurality of sucking disc mouths on the sucking disc terminal surface, the sucking disc mouth is the annular and arranges, and a plurality of sucking disc mouths are nested according to the preface to the central ring-type of sucking disc terminal surface arranges, like this, can be so that vacuum chuck 114 better absorption shows or touch-control module 20, and avoids showing or touch-control module 20 the phenomenon that local deformation appears.
Be provided with the intercommunication groove between the adjacent sucking disc mouth, the intercommunication groove is with adjacent sucking disc mouth intercommunication, and is provided with a plurality ofly between adjacent sucking disc mouth the intercommunication groove, a plurality of intercommunication grooves encircle along the periphery of sucking disc mouth and arrange.
The printing platform 13 includes a printing moving frame 131 and a printing rotating frame 132, wherein the printing moving frame 131 is disposed on a rail, so that the printing moving frame 131 can move along the rail; the printing turret 132 is rotatably connected to the upper portion of the printing moving frame 131, such that the printing turret 132 can horizontally rotate relative to the printing moving frame 131, and the display or touch module 20 is disposed on the printing turret 132.
The printing rotating frame 132 is provided with a printing needle plate 130 and a printing suction plate 133, the printing needle plate 130 is connected to the printing rotating frame 132, the printing suction plate 133 is connected to the printing needle plate 130, and the printing suction plate 133, the printing needle plate 130 and the printing rotating frame 132 are sequentially overlapped from top to bottom.
A printing vacuum suction hole is formed in the printing suction plate 133, and the printing suction plate 133 is provided with a printing suction surface arranged upwards, and the printing vacuum suction hole penetrates through the printing suction surface; and a printing through-hole is provided in the printing suction plate 133, the printing through-hole penetrating through the printing suction plate 133.
The printing needle plate 130 is provided with a plurality of printing thimbles 135 in a protruding manner, the printing thimbles 135 penetrate through the printing through holes, and the printing thimbles 135 move up and down in the printing through holes under the driving of a power element, can be contained in the printing through holes and also can protrude upwards on the printing suction surface.
After the display or touch module 20 is transferred to the upper side of the printing platform 13 by the transfer plate 11, the printing thimbles 135 of the printing needle plate 130 protrude upwards and extend to the upper side of the printing suction surface, the transfer plate 11 moves downwards until the printing thimbles 135 penetrate through the hollow strips 115 between the laths 113, the display or touch module 20 is jacked, and then the transfer plate 11 is pulled and withdrawn; then, the print pin 135 moves downward until it moves below the print-attracting surface, at which time the display or touch module 20 is attracted to the print-attracting surface of the print suction plate 133.
Of course, after the display or touch module 20 adsorbed on the printing platform 13 completes the 3D printing and curing of the adhesive layer, the laser head is used to recheck the adhesive layer, and the product can be discharged after being qualified. In the blanking process, the display or touch module 20 can be lifted up by the printing thimble 135 to be separated from the printing suction surface, and then the display or touch module 20 can be transferred to other stations by the transfer plate 11.
In this embodiment, the printing thimble 135 has an upper end portion for jacking up the display or touch module 20, and the upper end portion of the printing thimble 135 is wrapped with printing encapsulation, so as to prevent the printing thimble 135 from damaging the display or touch module 20 in the process of jacking up the display or touch module 20.
The printing encapsulation has a printing jacking portion coated on the top of the printing thimble 135, the printing jacking portion is arranged in an arc surface shape and is arranged in a large-size and small-size shape, so that the elastic deformation of the printing jacking portion beneficial to the printing encapsulation further plays a role in protecting the display or touch module 20.
In this embodiment, the lower portion of the print pin 135 extends to the lower portion of the print pin plate 130, and is connected to a power element, the power element drives the print pin 135 to move up and down, and the upper portion of the print pin 135 extends to the upper portion of the print pin plate 130, and is movably disposed in the print through hole of the print suction plate 133.
A plurality of printing bosses are arranged on the printing needle plate 130, and the printing ejector pins 135 movably penetrate through the printing bosses, that is, the printing bosses surround the peripheries of the printing ejector pins 135, so that the verticality of the printing ejector pins 135 can be ensured in the process that the power element drives the printing ejector pins 135 to move up and down.
In this embodiment, the print suction plate 133 is a ceramic plate, so that the diameter of the formed print vacuum suction hole can be smaller, and the display or touch module 20 is prevented from being locally deformed or warped in the process of sucking the display or touch module 20; the aperture of the vacuum suction hole 125 of the film tearing suction plate 124 is relatively large, so that the display or touch module 20 is prevented from moving or falling off during the film tearing process.
In the step 3), the laser head moves linearly along the width direction and the length direction of the display or touch module 20, and multiple linear path scans are formed on the connecting end surface of the display or touch module 20, so that height data of the middle area, the edge area and the like of the connecting end surface are obtained, and further initial inspection height data of the whole connecting end surface is obtained.
In the step 3), the position of the display or touch module 20 on the printing platform 13 is corrected at the same time, and the position of the display or touch module 20 is detected and corrected through the correction structure, which may be scanning first by the laser head and then corrected, or correcting first and then scanning, specifically depending on actual needs.
In this embodiment, the glue printing device 14 is an existing product, and is not described in detail herein. The controller controls the spraying speed, the spraying amount and the like of the glue spraying heads through the initial detection height data of the laser heads.
In this embodiment, the curing device 15 includes a curing lamp and two rows of shielding plates, a spacing region is formed between the two rows of shielding plates, each row of shielding plates has a plurality of shielding plates 16 arranged in a row-like manner, and the shielding plates 16 of the row of shielding plates move towards or away from the spacing region; the curing light is positioned above the spaced-apart region.
The printing platform 13 moves the display or touch module 20 with the 3D printed adhesive layer into the spacing area, and since the thicknesses of the adhesive layers are different, the thicknesses of the adhesive layers are different in the middle area and the edge area of the connecting end face, so as to avoid the same heating degree to the adhesive layers in the curing process, the shielding plate 16 is used to shield the thinner part of the adhesive layer, such as the edge area of the connecting end face.
After print platform 13 got into the interval region, the controller was according to the thickness data of glue film, the shielding plate 16 that the control corresponds moved towards the interval region, shelter from the marginal area of joining the terminal surface, perhaps partial marginal area, it is hotter to the glue film to utilize the curing lamp, after heating to the settlement time, deviate from the interval region with shielding plate 16 again and move, make whole glue film whole show out, the curing lamp then continues to heat, like this, then can correspond the different thickness of glue film, carry out different heat treatment, reach the even effect of whole glue film solidification.
In this embodiment, the curing device 15 includes a curing moving plate 151, the curing moving plate 151 is connected to the rail and can move up and down and horizontally, and the curing moving plate 151 has a lower end surface horizontally arranged downward.
The curing lamp is connected to the lower end face of the curing moving plate 151 and arranged downward, a substrate is arranged below the curing lamp and horizontally arranged and connected to the curing moving plate 151, and a hollow hole strip is arranged in the substrate and forms a spacing area between the two shielding plate rows.
The base plate has an upper end surface which is horizontally arranged upwards, and the two shielding plate rows are connected to the upper end surface of the base plate and are respectively arranged at two sides of the hollow hole strip, so that the position change of the whole curing equipment 15 can be controlled along with the movement of the curing moving plate 151.
In this embodiment, the curing lamp is the cyclic annular and arranges, and it arranges around the periphery of whole fretwork hole strip, like this, is favorable to curing lamp's solidification more.
At the lower terminal surface of solidification movable plate 151, the outstanding wall ring that protrudes downwards, this protruding wall ring encircles the periphery of fretwork orifice strip and arranges, and has the lower part opening, foretell curing lamp installs on the inside wall of protruding wall ring, and encircles along the direction of encircleing of protruding wall ring and arranges, and like this, the heat that curing lamp sent also can be under the restriction of protruding wall ring, and the lower part opening of protruding wall ring is upwards emitted for thermal giving off has the directionality more.
Specifically, be provided with a plurality of curing lamps at the inside wall of protrusion wall ring, a plurality of curing lamps are upper and lower interval arrangement, and each curing lamp all is the encircleing form and arranges.
In this embodiment, two guide rails are disposed on the upper surface of the substrate, the two guide rails are disposed on two sides of the hollow hole bar, and the shielding plate rows are correspondingly disposed on the guide rails and driven by the power element to move relative to the spacing area.
The curing moving plate 151 is provided with a protective cover 152 which surrounds a cavity with an opening at the lower part, and the curing lamp and the substrate are positioned in the cavity, so that the protective cover 152 can be used for protection, the curing process is avoided, and heat is easily dissipated to the outside to cause damage and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. A method for 3D printing of a glue layer by a display or touch module is characterized by comprising the following steps:
1) the display or touch module is arranged on the film tearing platform, and the protective film on the connecting end face of the display or touch module is torn;
the film tearing platform comprises a film tearing moving frame and a film tearing rotating frame, the film tearing moving frame is arranged on the track, and the film tearing rotating frame is rotatably connected to the upper part of the film tearing moving frame; the film tearing rotating frame is provided with a film tearing needle plate, and the film tearing needle plate is provided with a film tearing suction plate; the film tearing suction plate is internally provided with a film tearing vacuum suction hole and a film tearing through hole, the film tearing needle plate is convexly provided with a film tearing thimble which moves up and down along the film tearing through hole, the upper end part of the film tearing thimble is coated with a film tearing rubber coating, the film tearing rubber coating is provided with a film tearing jacking part coated on the top of the film tearing thimble, the film tearing jacking part is arranged in an arc surface shape, the film tearing jacking part is arranged in a large-upper-small-lower-small shape, the film tearing needle plate is provided with a plurality of film tearing bosses, the film tearing thimble movably penetrates through the film tearing bosses, and the film tearing bosses surround the periphery of the film tearing thimble;
the display or touch module is arranged on a film tearing suction plate of the film tearing platform and is fixedly adsorbed through a film tearing vacuum suction hole; when the film tearing structure tears off the protective film on the display or touch module, the film tearing thimble moves upwards along the film tearing through hole and pushes the display or touch module to separate from the film tearing suction plate, and the display or touch module is suspended above the film tearing suction plate;
2) transferring the display or touch module with the film torn to a printing platform by using a transfer plate, wherein the display or touch module is adsorbed on the printing platform;
the transfer plate is provided with a plurality of hollow strips arranged at intervals, the hollow strips penetrate through the outer side of the transfer plate, the transfer plate is divided into a plurality of strips arranged at intervals by the hollow strips, and the strips are provided with vacuum chucks for adsorbing display or touch modules; when the transfer plate is inserted between the film tearing suction plate and the display or touch module, the film tearing thimble is arranged in the hollow strip;
in the step 2), the transfer plate is inserted between the film tearing suction plate and the display or touch module, the display or touch module is sucked, the display or touch module is transferred to the printing platform, and meanwhile, the film tearing thimble moves downwards and retracts into the film tearing through hole;
3) performing multiple linear path scanning along the length direction and the width direction of a display or touch module on the printing platform by using a laser head, detecting initial detection height data of a middle area and an edge area of a connecting end surface of the display or touch module, and feeding back the initial detection height data to a controller;
4) the display or touch module is moved into a glue printing device by the printing platform, the glue printing device is provided with a plurality of glue nozzles arranged downwards, and the controller controls the glue nozzles to spray glue on the connecting end face of the display or touch module to form a glue layer;
5) the printing platform sends the display or touch module printed with the adhesive layer into curing equipment, the curing equipment cures the adhesive layer, the curing equipment comprises a curing lamp and two rows of shielding plate rows, a spacing area is formed between the two rows of shielding plate rows, the shielding plate rows are provided with a plurality of shielding plates arranged in a spacing row shape, the shielding plates move towards or away from the spacing area, and the curing lamp is located above the spacing area;
the curing equipment further comprises a curing moving plate, the curing moving plate is connected to the track, the curing moving plate is provided with a lower end face arranged horizontally downwards, the curing lamps are connected to the lower end face of the curing moving plate and arranged downwards, a base plate is arranged below the curing lamps, the base plate is arranged horizontally and connected to the curing moving plate, hollow hole strips are arranged in the base plate, and the hollow hole strips form a spacing area between two rows of shielding plate rows; the lower end face of the curing moving plate is downwards protruded with a convex wall ring which is arranged around the periphery of the hollow hole strip and is provided with a lower opening, and the curing lamp is installed on the inner side wall of the convex wall ring and is arranged around along the surrounding direction of the convex wall ring.
2. The method for 3D printing of a glue layer on a display or touch module according to claim 1, wherein after the step 5), the laser head performs a recheck scan on the display or touch module with a cured glue layer on the printing platform, the laser head performs a plurality of linear path scans along the length direction and the width direction of the display or touch module, and the scanning path of the laser head is consistent with the initial detection scanning path of the laser head in the step 3).
3. The method for 3D printing of an adhesive layer by a display or touch module according to claim 1, wherein in the step 3), the position of the display or touch module on the printing platform is detected and corrected by using a correction structure; the correcting structure comprises four cameras arranged downwards, the four cameras respectively detect the coordinate positions of four corners of the display or touch module and feed detected data back to the controller, and the controller obtains the central position data and the inclination angle data of the display or touch module.
4. The method for 3D printing of an adhesive layer on a display or touch module according to claim 1, wherein in the step 1), before the display or touch module is subjected to film tearing, a protective film on the display or touch module is cleaned by using an air knife structure; the air knife structure is internally provided with an air suction channel and an air blowing channel, the lower end part of the air knife structure is provided with an air blowing port and an air suction port, the air blowing port is communicated with the air blowing channel, the air suction port is communicated with the air suction channel, and the air blowing port and the air suction port are arranged at intervals in sequence along the moving direction of the display or touch module.
5. The method for 3D printing of the adhesive layer through the display or touch module according to any one of claims 1 to 4, wherein the film tearing structure comprises a film tearing moving plate which moves up and down, a horizontally arranged roller is arranged at the lower part of the film tearing moving plate, two film tearing clamping blocks are arranged at the lower part of the film tearing moving plate, a film clamping gap is formed between the two film tearing clamping blocks, and the two film tearing clamping blocks are arranged at the side edges of the roller; in step 1), the dyestripping movable plate moves down to the top of dyestripping platform, dyestripping platform adjustment position, the roller bearing supports the corner of the protection film on demonstration or the touch-control module, through the roll roller bearing, drives the corner book of protection film is on the roller bearing, just the protection film gets into two in the dyestripping clearance of dyestripping clamp splice, two the protection film is cliied to the dyestripping clamp splice, along with the removal of dyestripping platform, the protection film is followed show or the connection terminal surface of touch-control module breaks away from.
6. The method for 3D printing of an adhesive layer on a display or touch module according to claim 5, wherein the printing platform comprises a printing moving frame and a printing rotating frame, the printing moving frame is disposed on the track, and the printing rotating frame is rotatably connected to the upper portion of the printing moving frame; a printing needle plate is arranged on the printing rotating frame, and a printing suction plate is arranged on the printing needle plate; a printing vacuum suction hole and a printing through hole are formed in the printing suction plate, and a printing thimble which moves up and down along the printing through hole is convexly arranged on the printing needle plate;
in step 2), after the transfer board adsorbs the display or touch module and is arranged on the print suction board of the printing platform, the print thimble moves upwards along the print through hole and pushes the display or touch module to separate from the transfer board, the display or touch module is suspended above the transfer board, the transfer board withdraws from between the print suction board and the display or touch module, the print thimble drives the display or touch module to move downwards until the display or touch module is adsorbed on the print suction board, and the print thimble retracts into the print through hole.
7. The method for 3D printing of a glue layer by a display or touch module according to claim 6, wherein the printing suction plate is a ceramic plate, and the aperture of the printing vacuum suction hole is smaller than the aperture of the film tearing vacuum suction hole.
8. The method for 3D printing of the adhesive layer by using the display or touch module according to any one of claims 1 to 4, wherein in the step 5), after the printing platform enters the spacing area, the controller controls the corresponding shielding plate to move towards the spacing area according to the thickness data of the adhesive layer on the display or touch module, so as to shield the edge area of the display or touch module, and the curing lamp heats the adhesive layer from top to bottom, and after the adhesive layer is heated to a set time, the shielding plate is moved away from the spacing area, so that the entire adhesive layer is exposed, and the curing lamp continues to heat the adhesive layer.
CN201910503442.0A 2019-06-11 2019-06-11 Method for 3D printing of adhesive layer by display or touch module Active CN110126261B (en)

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