CN111649043A - Flexible screen laminating method and device - Google Patents
Flexible screen laminating method and device Download PDFInfo
- Publication number
- CN111649043A CN111649043A CN202010586708.5A CN202010586708A CN111649043A CN 111649043 A CN111649043 A CN 111649043A CN 202010586708 A CN202010586708 A CN 202010586708A CN 111649043 A CN111649043 A CN 111649043A
- Authority
- CN
- China
- Prior art keywords
- flexible screen
- pressure head
- positioning jig
- pressure
- laser glue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000010030 laminating Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003292 glue Substances 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000741 silica gel Substances 0.000 claims abstract description 13
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000005485 electric heating Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000000499 gel Substances 0.000 claims 1
- 229920002379 silicone rubber Polymers 0.000 claims 1
- 239000004945 silicone rubber Substances 0.000 claims 1
- 230000007547 defect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method and a device for laminating a flexible screen, wherein the method comprises the following steps: s1, laying laser glue on the surface to be laminated of the flexible screen; s2, placing the flexible screen on a positioning jig, enabling the surface to be pressed to be upward, bearing the flexible screen through the positioning jig and positioning the flexible screen; s3, moving the heat-conducting silica gel to the position above the laser glue layout position on the surface to be laminated as a pressure head, so that the pressure head is in overall contact with the laser glue, and the surface temperature t of the pressure head is 70-90 ℃; s4, applying a pressing force to the pressure head to make the pressure head deform under pressure and press the laser glue, and maintaining the pressure for a preset time under the pressure applying state; s5, moving the pressure head to separate the pressure head from the flexible screen, and taking the flexible screen out of the positioning jig to complete the pressing of the flexible screen. The invention avoids rigid impact between the pressure head and the flexible screen and plays a role in protecting the flexible screen; meanwhile, the laser glue can be activated and cured instantly, so that the yield of the flexible screen is improved.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a laminating method and device for a flexible screen.
Background
Along with the intelligent continuous promotion of electronic product, flexible screen has been applied to some gradually like on terminal equipment such as cell-phone, and it has physical characteristics such as flexible, the pliability is strong, frivolous, can increase terminal equipment's durable degree, reduces the probability of damage beyond the terminal equipment, simultaneously, compares in traditional screen subassembly, and the low power dissipation of flexible screen helps promoting terminal equipment's duration.
The traditional screen is pressed by a pressing clamp, a pressing head is arranged on an upper die to fully contact and press the screen, the pressing force is large, and the adhesive layer can be activated only when the downward pressure is generally within the range of 40-50kg according to the size of the screen; when the laminating fixture applied to the traditional screen is laminated aiming at the flexible screen, the flexible screen can be directly pressed out of the defects of gravure, impression, layering and liquid leakage due to the physical characteristics of the flexible screen.
Disclosure of Invention
The invention aims to provide a flexible screen laminating method which can be suitable for laminating flexible screens and improve the yield of the flexible screen laminating.
The invention also aims to provide a laminating device of the flexible screen.
In order to achieve the first purpose, the invention adopts the following technical scheme;
a laminating method of a flexible screen comprises the following steps:
s1, laying laser glue on the surface to be laminated of the flexible screen;
s2, placing the flexible screen on a positioning jig, enabling the surface to be pressed to face upwards, bearing the flexible screen through the positioning jig and positioning the flexible screen;
s3, moving heat-conducting silica gel serving as a pressure head to a position above the laser glue laying position on the surface to be laminated, so that the pressure head is in overall contact with the laser glue, and the surface temperature t of the pressure head is 70-90 ℃;
s4, applying a pressing force to the pressure head to press the pressure head to deform and press the laser glue, and maintaining the pressure for a preset time under the pressing state;
s5, moving the pressure head to separate the pressure head from the flexible screen, and taking the flexible screen out of the positioning jig to complete the pressing of the flexible screen.
Preferably, the Shore hardness of the heat-conducting silica gel is 28-32A.
Preferably, in step S3, the surface temperature t of the thermally conductive silica gel is 80 ℃.
Preferably, in step S4, the dwell time in the pressurized state is 15S.
In order to achieve the second purpose, the invention adopts the following technical scheme:
a laminating device of a flexible screen comprises a positioning jig, a pressure head assembly, a driving unit and a heating unit;
the positioning jig is provided with a positioning groove for accommodating and positioning the flexible screen distributed with the laser glue;
the pressure head assembly is positioned above the positioning jig and comprises a fixed seat, a heat conduction copper block arranged on the lower surface of the fixed seat and a pressure head which is connected to the lower surface of the heat conduction copper block and is made of heat conduction silica gel;
the heating unit is used for heating the heat conduction copper block;
the driving unit is used for driving the pressure head assembly to move up and down.
Preferably, the heating unit is an electric heating wire which is arranged in the fixed seat.
Preferably, the driving unit is a cylinder.
Preferably, the pressing device further comprises a base and a support fixed on the upper surface of the base, and the positioning jig is fixed on the upper surface of the base; the cylinder body fixed connection of cylinder is in on the support, the telescopic link downwardly extending of cylinder and with the fixing base is connected.
Preferably, the pressure head assembly further comprises an installation plate, and the fixed seat is fixedly connected to the installation plate; the support with fixedly connected with guide bar between the base, the mounting panel is gliding cup joint be in on the guide bar.
According to the invention, the pressure head is made of soft heat-conducting silica gel, and can deform when the pressure head applies pressure to the flexible screen, so that rigid impact between the pressure head and the flexible screen is avoided, the flexible screen is protected, and the defects of gravure, impression, layering, liquid leakage and the like caused by the fact that the flexible screen is pressed out are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of the pressing device according to the present invention;
FIG. 2 is a schematic structural diagram of a pressing device according to the present invention;
fig. 3 is a schematic structural view of the pressure head assembly of fig. 2.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
30 | |
| 11 | Locating |
40 | |
| 20 | |
41 | |
| 21 | |
42 | |
| 22 | Fixed |
91 | |
| 23 | Heat-conducting |
92 | |
| 24 | Pressure head |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 3, the method for laminating the flexible screen of the present invention includes the following steps:
s1, laying laser glue 92 on the surface to be laminated of the flexible screen 91;
s2, placing the flexible screen 91 provided with the laser glue 92 in a positioning groove 11 of the positioning jig 10, aligning the edge of the flexible screen 91 with the edge of the positioning groove 11, positioning the flexible screen 91 by using the positioning groove 11, and meanwhile, enabling the surface to be laminated of the flexible screen 92 provided with the laser glue 92 to face upwards;
s3, moving the pressure head 24 to the surface to be pressed, on which the laser glue 92 is arranged, of the flexible screen 91, so that the pressure head 24 is in contact with the laser glue 92, and the pressure head 24 is ensured to be in full contact with the laser glue 92, wherein the pressure head 24 is made of heat-conducting silica gel; meanwhile, in the step S3, the surface temperature t of the indenter 24 is 80 ℃, the indenter 24 is fixed below the heat-conducting copper block 23, efficient heat transfer can be performed between the heat-conducting copper block 23 and the indenter 24, the heat-conducting copper block 23 is heated in advance by the heating unit, that is, the surface temperature of the indenter 24 can reach 80 ℃ in the step S3;
s4, applying a downward pressure to the ram 24, where the downward pressure deforms the ram 24 and transmits the pressure to the laser glue 92, then, under the condition that the ram 24 maintains the temperature t, hot-pressing the heat-conducting silicone 92 by using the ram 24, and maintaining the pressure for 15S under the pressure-applied state, where the laser glue 92 is activated and cured to exert the characteristics of strong viscosity, ductility, toughness, and the like;
and S5, moving the pressure head 24 upwards to separate the pressure head 24 from the flexible screen 91, and taking the flexible screen 91 out of the positioning groove 11 of the positioning jig 10 to complete the pressing of the flexible screen 91.
According to the method, the pressure head is made of the soft heat-conducting silica gel material, and can deform when the pressure head applies pressure to the flexible screen, so that rigid impact between the pressure head and the flexible screen is avoided, the flexible screen is protected, the defects of gravure, stamping, layering, liquid leakage and the like caused by the fact that the flexible screen is pressed out are avoided, meanwhile, the pressure head keeps a certain temperature during pressing, the laser glue can be activated and solidified instantly, parts of the flexible screen where the laser glue is distributed are meshed with the laser glue, and therefore the yield of the flexible screen is improved.
In the present invention, the shore hardness of the thermal conductive silica gel for manufacturing the indenter 24 is 28 to 32A, and preferably, the thermal conductive silica gel with the shore hardness of 30A may be selected. In the step S3, the temperature of the hot pressing may be selected according to factors such as different environments, laser adhesives with different characteristics, and flexible screens applied to different product categories, that is, the temperature t of the surface of the pressing head may be selected within a range of 70-90 ℃; similarly, the pressure applying time of the pressure head to the flexible screen, i.e. the pressure maintaining time, may also be selected in step S4 according to factors such as different environments, laser glue with different characteristics, and flexible screens applied to different product categories, and generally, the pressure maintaining time only needs to satisfy the activation condition of the laser glue.
Referring to fig. 1, 2 and 3, the laminating device for a flexible screen according to the present invention is used for implementing the laminating method, and specifically, the laminating device includes a positioning fixture 10, a pressing head assembly 20, a driving unit and a heating unit, wherein the positioning fixture 10 is in a plate-shaped structure, a positioning groove 11 is disposed on an upper surface of the positioning fixture 10, a shape of the positioning groove 11 follows an outer shape of the flexible screen 91, when the flexible screen 91 is positioned, the flexible screen 91 is accommodated in the positioning groove 11, an edge of the flexible screen 91 is flush with an edge of the positioning groove 11, and a bottom surface of the positioning groove 11 is used for bearing the flexible screen 91; pressure head subassembly 20 is located positioning jig 10's top, and it includes fixing base 22, heat conduction copper billet 23 and pressure head 24, and heat conduction copper billet 23 is installed at fixing base 22's lower surface, and pressure head 24 is installed at heat conduction copper billet 23 lower surface, and pressure head 24 material is heat conduction silica gel, can carry out the efficient heat transfer between it and the heat conduction copper billet 23. The heating unit is used for heating the heat conduction copper block 23, and heat is transferred to the pressure head 24 through the heat conduction copper block 23, so that the pressure head 24 can keep a specific temperature value when pressing the flexible screen 91. The driving unit is used for driving the pressure head assembly 20 to move up and down, and after the flexible screen 91 is positioned on the positioning jig 10, the driving unit is started to drive the pressure head assembly 20 to move down, so that the pressure head 24 can apply pressure to the flexible screen 91, and after the pressing action is completed, the driving unit drives the pressure head assembly 20 to move up, so that the flexible screen 91 can be taken out from the positioning groove 11.
The heating unit of the present invention may be an electric heating wire built in the fixing base 22 to rapidly heat the heat conducting copper block 23, and of course, the heating unit may also be other heating devices capable of heating the heat conducting copper block 23.
The driving unit may be an air cylinder 30, and meanwhile, the pressing device of the present invention further includes a base 40 and a bracket 41, wherein the positioning fixture 10 is fixed on the upper surface of the base 40, the bottom of the bracket 41 is fixed on the upper surface of the base 40 and extends upward, the cylinder body portion of the air cylinder 30 is fixedly connected to the top of the bracket 41, and the telescopic rod of the air cylinder 30 extends downward and is connected to the fixing base 22; in addition, in order to ensure the pressing precision and avoid the pressure head 22 from deflecting under the driving of the air cylinder 30, the pressure head assembly 20 of the present invention further includes a mounting plate 21, the fixing seat 22 is fixedly connected to the mounting plate 21, two vertically extending guide rods 42 are fixed between the top of the bracket 41 and the base 10, the two guide rods 42 are symmetrically distributed on two sides of the air cylinder 30, two ends of the mounting plate 21 are respectively slidably sleeved on the two guide rods 42, and meanwhile, the fixing seat 22 is disposed in the middle of the mounting plate 21.
In the present invention, a plurality of heat conducting copper blocks 23 may be installed side by side on the lower surface of the fixing base 22, and one pressure head 24 is installed on the lower surface of each heat conducting copper block 23, so that the plurality of pressure heads 24 can apply pressure to a plurality of positions on the flexible screen 91 where the laser glue 92 is arranged.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A flexible screen laminating method is characterized by comprising the following steps:
s1, laying laser glue on the surface to be laminated of the flexible screen;
s2, placing the flexible screen on a positioning jig, enabling the surface to be pressed to face upwards, bearing the flexible screen through the positioning jig and positioning the flexible screen;
s3, moving heat-conducting silica gel serving as a pressure head to a position above the laser glue laying position on the surface to be laminated, so that the pressure head is in overall contact with the laser glue, and the surface temperature t of the pressure head is 70-90 ℃;
s4, applying a pressing force to the pressure head to press the pressure head to deform and press the laser glue, and maintaining the pressure for a preset time under the pressing state;
s5, moving the pressure head to separate the pressure head from the flexible screen, and taking the flexible screen out of the positioning jig to complete the pressing of the flexible screen.
2. A laminating method for flexible screens according to claim 1, wherein the shore hardness of the heat-conducting silicone rubber is 28-32A.
3. A laminating method of a flexible screen according to claim 1, wherein in step S3, the surface temperature t of the heat conductive silicone gel is 80 ℃.
4. A press-fitting method of a flexible screen according to claim 1, wherein in step S4, the dwell time in the pressed state is 15S.
5. A laminating device of a flexible screen is characterized by comprising a positioning jig, a pressure head assembly, a driving unit and a heating unit;
the positioning jig is provided with a positioning groove for accommodating and positioning the flexible screen distributed with the laser glue;
the pressure head assembly is positioned above the positioning jig and comprises a fixed seat, a heat conduction copper block arranged on the lower surface of the fixed seat and a pressure head which is connected to the lower surface of the heat conduction copper block and is made of heat conduction silica gel;
the heating unit is used for heating the heat conduction copper block;
the driving unit is used for driving the pressure head assembly to move up and down.
6. A laminating device for flexible screens according to claim 5, characterised in that the heating unit is an electric heating wire built into the holder.
7. A laminating device for flexible screens according to claim 5, characterised in that the drive unit is an air cylinder.
8. The laminating device for the flexible screen according to claim 7, wherein the laminating device further comprises a base and a support fixed on the upper surface of the base, and the positioning jig is fixed on the upper surface of the base; the cylinder body fixed connection of cylinder is in on the support, the telescopic link downwardly extending of cylinder and with the fixing base is connected.
9. A compression fitting arrangement for a flexible screen as claimed in claim 8, wherein said head assembly further comprises a mounting plate, said holder being fixedly attached to said mounting plate; the support with fixedly connected with guide bar between the base, the mounting panel is gliding cup joint be in on the guide bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010586708.5A CN111649043A (en) | 2020-06-24 | 2020-06-24 | Flexible screen laminating method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010586708.5A CN111649043A (en) | 2020-06-24 | 2020-06-24 | Flexible screen laminating method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111649043A true CN111649043A (en) | 2020-09-11 |
Family
ID=72347542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010586708.5A Withdrawn CN111649043A (en) | 2020-06-24 | 2020-06-24 | Flexible screen laminating method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111649043A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847315A (en) * | 2021-11-29 | 2021-12-28 | 龙旗电子(惠州)有限公司 | Press-fit equipment |
-
2020
- 2020-06-24 CN CN202010586708.5A patent/CN111649043A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847315A (en) * | 2021-11-29 | 2021-12-28 | 龙旗电子(惠州)有限公司 | Press-fit equipment |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200911 |