CN214718007U - Gluing device - Google Patents
Gluing device Download PDFInfo
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- CN214718007U CN214718007U CN202022373261.1U CN202022373261U CN214718007U CN 214718007 U CN214718007 U CN 214718007U CN 202022373261 U CN202022373261 U CN 202022373261U CN 214718007 U CN214718007 U CN 214718007U
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- assembly
- gluing device
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Abstract
The application relates to glue coating technical field, discloses a rubber coating device, and the rubber coating device includes: the steel mesh assembly comprises a frame, a plurality of first steel bars and a plurality of second steel bars, the first steel bars are arranged along a first direction at equal intervals, the second steel bars are arranged along a second direction at equal intervals, and the first steel bars and the second steel bars are matched and crossed to define a plurality of coating subareas; an angle exists between the first direction and the second direction, two ends of each first steel bar are fixedly connected to the frame, and two ends of each second steel bar are fixedly connected to the frame; the steel mesh assembly also has a scraping surface for scraping off the glue, and the surfaces of the plurality of first steel bars and the plurality of second steel bars in contact with the glue are flush with the scraping surface. The application discloses rubber coating device can solve the inhomogeneous problem of thickness when high viscosity glue large tracts of land, low thickness coating.
Description
Technical Field
The application relates to the technical field of glue coating, in particular to a gluing device.
Background
With the development of Light Emitting Diode (LED) technology, micro LED display technology will become the next revolutionary technology, and micro LEDs are used as backlight Light sources and display pixels by miniaturizing and matrixing the conventional LED structure.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gluing device can solve the inhomogeneous problem of thickness when high viscosity glue large tracts of land, low thickness coating.
In order to achieve the above object, the utility model provides a gluing device, include:
a steel mesh assembly comprising a frame, a plurality of first steel bars equally spaced along a first direction, and a plurality of second steel bars equally spaced along a second direction, the plurality of first steel bars crossing the plurality of second steel bars to define a plurality of coating sub-regions; the first direction and the second direction form an included angle, two ends of each first steel bar are fixedly connected to the frame, and two ends of each second steel bar are fixedly connected to the frame; the steel mesh assembly is also provided with a scraping surface for scraping off the glue, and the surfaces of the plurality of first steel bars and the plurality of second steel bars, which are contacted with the glue, are flush with the scraping surface.
Above-mentioned rubber coating device, including the steel mesh subassembly, the steel mesh subassembly includes frame, first billet and second billet, and a plurality of coating subregions are injectd in first billet and the second billet intersection, and the surface of steel mesh subassembly still has the shaving that is used for scraping glue, the surface of first billet and second billet all with the shaving parallel and level. When glue is needed to be coated, the steel mesh component is fixed on a plane to be coated, glue is extruded to the surface of the steel mesh component, and then the glue is filled in each coating subarea by using glue scraping equipment to form a plurality of sub-glue parts. Because the glue scraping equipment is in direct contact with the surface of the steel mesh assembly, the thickness of the steel mesh assembly (namely the distance from the plane to be glued to the scraping surface) is the thickness of the glue, and after the glue is coated, the steel mesh assembly is removed to finish the coating of the glue. The glue part coated by the glue coating device consists of glue blocks coated in each coating subarea distributed in an array manner, and the thickness of each glue block is equal to that of the steel mesh assembly, so that the thickness of each glue block can be ensured to be the same, and the uniformity of the thickness of the glue part coated by the steel mesh assembly is ensured.
Therefore, the utility model provides a rubber coating device through evenly coating each sub-region of coating with glue, has solved the inhomogeneous problem of thickness when high viscosity glue large tracts of land, low thickness coating.
Preferably, the scraper component is used for being matched with the scraping surface to scrape off the glue so that the surface of the glue is flush with the scraping surface to form the glue part.
Preferably, the frame is rectangular, the width of the first steel bar is the same as the width of the second steel bar, the thickness of the first steel bar is the same as the thickness of the second steel bar, and the distance between every two adjacent first steel bars is equal to the distance between every two adjacent second steel bars.
Preferably, the steel mesh assembly further comprises a handle provided on the frame.
Preferably, the handles are distributed at four corners of the frame.
Preferably, the frame further comprises positioning columns for fixing the frame to a plane to be coated with glue, and the positioning columns are distributed at four corners of the frame.
Preferably, the positioning column extends 0.5mm beyond a side surface of the frame facing away from the handle.
Preferably, the device further comprises a vacuum carrier for placing the back plate, a fixing device for fixing the scraper blade assembly and a control device for controlling the scraping angle of the scraper blade assembly.
Preferably, two opposite sides of the scraper component are provided with glue outlets.
Preferably, the utility model provides a concatenation formula subassembly, include:
a substrate having a plane to be coated with glue;
the assembly is adhered to the plane to be glued, and comprises a plurality of sub-units which are tightly connected, and each sub-unit is adhered to the plane to be glued through a glue part formed by coating through the glue coating device.
Preferably, the thickness of the glue layer is 0-0.2 mm.
Preferably, the material of the glue layer is silica gel.
Drawings
FIG. 1 is a schematic view of a back side structure of a middle glue-applying device of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic front view of the middle gluing device of the present invention;
fig. 4a is a schematic side view of the substrate coated with glue by the glue applicator of the present invention;
fig. 4b is a schematic view of a structure of the neutron unit of the present invention bonded to a substrate;
fig. 5 is a schematic view of a front structure of the substrate coated with glue by the gluing device of the present invention.
In the figure:
10-a steel mesh assembly; 11-a frame; 12-a first steel strip; 13-a second steel strip; 14-a coating subarea; 15-a positioning column; 16-a handle; 20-a substrate; 30-glue section; 31-a subgasket portion; 40 subunits; 50-glue layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, 3 and 5, the present invention provides a glue spreading apparatus, including a steel mesh assembly 10 and a scraper assembly (not shown in the figure), wherein the steel mesh assembly 10 includes a frame 11, a plurality of first bars 12 arranged at equal intervals along a first direction, and a plurality of second bars 13 arranged at equal intervals along a second direction, the first bars 12 and the second bars 13 intersect to define a plurality of coating sub-regions 14, wherein an included angle exists between the first direction and the second direction, and both ends of each of the first bars 12 and the second bars 13 are fixedly connected to the frame 11; the steel net assembly 10 further has a scraping surface for scraping off the glue (the scraping surface can refer to the plane indicated by B in fig. 3), and the surfaces of the first steel bar 12 and the second steel bar 13 contacting the glue are flush with the scraping surface; the scraper assembly is adapted to cooperate with the scraping surface to scrape the glue off such that the surface of the glue is flush with the scraping surface to form the glue portion 30.
The gluing device comprises a steel mesh assembly 10 and a scraper assembly, wherein the steel mesh assembly 10 comprises a frame 11, a first steel bar 12 and a second steel bar 13, the first steel bar 12 and the second steel bar 13 are crossed to define a plurality of coating subareas 14, the surface of the steel mesh assembly 10 further comprises a scraping surface for scraping off glue, and the surfaces of the frame 11, the first steel bar 12 and the second steel bar 13 are flush with the scraping surface. When glue is required to be applied, the steel mesh assembly 10 is firstly fixed on the plane to be applied, glue is extruded on the surface of the steel mesh assembly 10, and then the glue is filled in each of the coating subareas 14 by using a scraper assembly to form a plurality of sub-glue portions 31. Since the scraper assembly is in direct contact with the surface of the steel mesh assembly 10, the thickness of the steel mesh assembly 10 (i.e. the distance from the plane to be coated to the scraping surface) is the thickness of the coated glue, and the steel mesh assembly 10 is removed after the coating is finished, so as to complete the coating of the glue on the plane to be coated. The glue part 30 coated by the glue coating device is composed of sub-glue parts 31 coated in the coating sub-regions 14 distributed in an array manner, and the thickness of each sub-glue part 31 is the thickness of the steel mesh assembly 10, so that the thickness of each sub-glue part 31 can be ensured to be the same, and the uniformity of the thickness of the glue part 3 coated by the steel mesh assembly 10 is ensured.
Therefore, the utility model provides a rubber coating device evenly coats each subregion 14 of coating through utilizing the scraper subassembly with glue, has solved the inhomogeneous problem of thickness when high viscosity glue large tracts of land, low thickness coating.
In the steel net assembly 10, the frame 11, the first steel bar 12 and the second steel bar 13 can be made of stainless steel, which has a good use effect.
It should be noted that the angle between the first steel net 12 and the second steel net 13 is preferably 90 degrees.
It should be noted that the steel mesh assembly 10 can design the size of the coating sub-area 14 according to the thickness of the required glue, and the size of the coating sub-area 14 cannot be too small to prevent the glue from being difficult to fill in consideration of the filling effect of the glue, and the shape of the coating sub-area 14 can also be designed according to the movement mode of the scraper assembly.
It should be noted that, during the process of removing the steel mesh assembly 10, the side edges of the frame 11, the first steel bar 12 and the second steel bar 13 may take away a portion of the glue due to the high viscosity of the glue, so that the size of each coating subarea 14 can be enlarged accordingly, and the widths of the frame 11, the first steel bar 12 and the second steel bar 13 can be reduced accordingly; meanwhile, when the widths of the frame 11, the first steel bar 12, and the second steel bar are sufficiently small, the influence is negligible. At the same time, the size of the coating sub-area 14 should not be too large to prevent the doctor assembly from deforming during operation, which could result in uneven glue thickness in each coating sub-area 14 due to the steel mesh assembly 10 or the doctor assembly.
In one implementation, in the above-mentioned frame 11 assembly, the shape of the frame 11 is rectangular, the width of the first steel bar 12 is the same as the width of the second steel bar 13, the distance between every two adjacent first steel bars 12 is the same as the distance between every two adjacent second steel bars 13, the included angle between the first steel bar 12 and the second steel bar 13 is 90 degrees, and the thicknesses of the first steel bar 12 and the second steel bar 13 are the same, that is, when the above-mentioned frame 11 assembly is placed on a plane to be coated with glue for gluing, the shape of the sub-glue portions 31 formed in each sub-coating region 14 is the same, and is square. The above-described structure enables a faster adjustment when designing the coating sub-region 14 and is convenient to adapt to the structure of the plane to be coated.
It should be noted that, in order to prevent the glue from exceeding the boundary of the steel mesh assembly 10 during the glue spreading process, the thickness of the frame 11 can be made larger than the thickness of the first steel bar 12 and the second steel bar 13, that is, when the steel mesh assembly 10 is placed on the plane to be glued, the thickness of the frame 11 perpendicular to the plane to be glued is larger than the thickness of the first steel bar 12 and/or the second steel bar 13 perpendicular to the plane to be glued.
Further, with continued reference to fig. 1 and 3, the above-mentioned frame 11 assembly further includes a handle 16 located on the frame 11 for facilitating the removal of the steel mesh assembly 10 after the glue is applied to the back plate 20, and a positioning post 15 for fixing the steel mesh assembly 10 to the plane to be glued is further provided on the side of the frame 11 facing away from the handle 16.
Taking the square shape of the frame 11 as an example, the four handles 16 are disposed at the four corners of the frame 11, so that the force applied to the sides is balanced when the steel net assembly 10 is removed, and no excessive glue is applied. In addition, the positioning posts 15 are disposed on the frame 11 to limit the movement of the steel mesh assembly 10 on the back plate 20 along the first direction or the second direction, and the positioning posts 15 may also include four, which are disposed at four corners of the frame 11. In one embodiment, the positioning column 15 exceeds the bottom surface of the frame 11 by 0.5mm, and accordingly, the positioning holes corresponding to the positioning columns 15 one to one are milled on the plane to be glued.
It should be noted that, in order to ensure that the thicknesses of the sub-adhesive portions 31 in the sub-coating areas 14 are consistent, the depth of the positioning hole on the to-be-coated plane is greater than 0.5-0.6 mm, and it is ensured that the bottom surface of the steel mesh assembly 10 coincides with the upper surface of the to-be-coated plane by limiting the movement of the steel mesh assembly 10 by the positioning column 15.
In one implementation, the above gluing device further comprises a vacuum carrying platform for placing a plane to be glued, a fixing device for fixing the scraper assembly and a control device for controlling the scraping angle of the scraper assembly, namely, the gluing device in the application can realize automatic gluing, so that not only can the positioning precision be improved, but also the working efficiency can be improved.
Furthermore, the two opposite sides of the scraper assembly are provided with glue outlets, namely the steel mesh assembly 10, the scraper assembly and glue can be integrated into a whole, the steel mesh assembly 10 is positioned at first, the steel mesh assembly 10 is ensured to be in close contact with a plane to be coated, then the glue is extruded by the scraper assembly with the glue under the action of pressure, the scraper assembly scrapes along the first direction and the second direction at a certain inclination angle, the glue is completely filled in each coating subarea 14, and automatic coating is realized. It should be noted that, in the above-mentioned automatic glue application manner, the glue amount can be calculated according to the size of the coating sub-area 14, so as to ensure that the glue is not used too much, thereby saving the production cost.
Based on the same invention concept, the present invention can also provide a splicing type assembly, as shown in fig. 4a, 4b and 5, which includes a substrate 20, the substrate 20 includes a plane to be glued, and an assembly adhered to the plane to be glued, the assembly includes a plurality of sub-units 40 tightly connected, each sub-unit 40 is adhered to the plane to be glued through a glue portion 30 formed by coating the glue portion on the plane to be glued by the above-mentioned gluing device. It should be noted that the glue portion 30 formed by each glue applying device in the figure includes sub-glue portions 31 formed in each coating sub-region, and in fig. 4b, the glue layer 50 between the substrate 20 and the sub-unit 40 is formed by the sub-glue portions 31 in the process of pressing down the sub-unit 40 in fig. 4 a.
Above-mentioned concatenation formula subassembly forms a plurality of inseparable adjacent gluey portions 30 at treating the coating plane coating through utilizing the rubber coating device, because the thickness of sub-gluey portion 31 is unanimous, has guaranteed that each glues the even unanimity of thickness of portion 30, when every subunit 40 pushes down the in-process, glues portion 30 and takes place deformation formation glue film 50, can guarantee the thickness precision of a plurality of glue films 50 to the precision of each subunit 40 concatenation has been guaranteed. The glue coating device is used for forming the glue parts 30, and the sub-units 40 are pressed to form the glue layers 50, so that the thickness precision of the glue layers 50 can be ensured, the sub-units 40 can be bonded to the large-size substrate 20 in the coating mode, and the operation is convenient.
In some embodiments, the sub-unit is a smaller-sized miniLED light source lamp panel, and a plurality of smaller-sized miniLED light source lamp panels are required to be spliced to match a larger-sized passive display panel, such as a liquid crystal display panel, to provide a backlight source. Under the condition, the fixing and the assembling of a plurality of small-size miniLED light source lamp panels in the module process are particularly important, the assembling mode needs to be considered from four aspects of bonding strength, heat conductivity, reworkability and splicing seams of adjacent lamp panels, and compared with a mode of adopting glue or easy-to-draw glue, the embodiment provided by the application cannot cause the problems that the easy-to-draw glue is broken due to overlarge stretching deformation and adjacent lamp panel splicing seams are difficult to control; and the problems of poor reworkability, difficult uniform coating and poor thermal conductivity when the whole surface is coated with glue for bonding can not occur.
It will be appreciated that the sub-unit may also be a display panel using micro light emitting diodes as pixels or other types of display panels.
It should be further noted that, as shown in fig. 5, when a plurality of glue portions 30 are formed by coating on a plane to be coated with glue, each glue portion 30 is formed by a plurality of sub-glue portions 31 located in an area where a corresponding steel mesh assembly is located in one coating process, and a distance c between two adjacent glue portions 30 is approximately equal to or greater than the width of the frame 11 in the gluing device, so as to control the distance between any two glue portions 30 and ensure the splicing effect of the sub-units 40. In an alternative embodiment, the width of the frame 11 is about 2 mm.
It should be noted that the above-mentioned assembly is also applicable to only one subunit 40 with a larger area, for this purpose, a plurality of glue portions 30 which are closely adjacent to each other may be formed by coating on the plane to be glued, and then the subunit 40 is placed on the substrate 20, and the plurality of glue portions 30 are deformed under the pressure of the subunit 40 to form the uniformly coated glue layer 50.
It should be noted that the glue thickness compensation is adopted in the process of bonding the sub-unit 40 to the substrate 20. Illustratively, the structure of the form of splicing a plurality of subunits is illustrated, and the principle is as follows: a plurality of sub-adhesive portions 31 are formed on a plane to be coated with adhesive by each adhesive coating device, a gap (the size of the gap is the width of the first steel bar 12 or the second steel bar 13) is formed between each sub-adhesive portion 31, the sub-adhesive portions 31 are combined to form the adhesive portion 30, after the adhesive coating device is removed, the sub-unit 40 corresponding to the adhesive portion 30 is flatly placed on the substrate 20, each adhesive portion 30 is greatly plastically deformed under the gravity of the sub-unit 40, and each sub-adhesive portion 31 is matched to fill the empty position to realize the overall coating of the adhesive, that is, the adhesive layer 50 is formed. Through the bonding mode of glue thickness compensation, the condition that poor heat dissipation is caused by the air layer between the substrate and the subunit can be avoided.
In the above manner of glue thickness compensation, when the glue portion 30 forms the glue layer 50, the glue layer 50 should cover the entire surface of the sub-unit 40 facing the substrate 20. At this time, the distance between two adjacent subunits 40 after being bonded to the substrate 20 is related to the width of the frame 11, and the smaller the width of the frame 11, the smaller the pitch.
It should be further noted that the above-mentioned tiled assembly may be a structure of a display device, for example, the substrate 20 may be a panel, and the sub-unit 40 may be a lamp panel or a screen. Therefore, the splicing type assembly is particularly suitable for large-size glass-based Mini LED lamp panels by using the splicing glue part 30 for splicing.
In the glue thickness compensation method, the weight G of the subunit 40, the plastic deformation coefficient epsilon of the glue and the volume V of the glue before compression0And volume of glue V after compression1The size and thickness of the coated sub-area 14 in the steel mesh assembly 10 are determined together, and in this way, in one embodiment, as shown in fig. 2, when the coated sub-area 14 is square and the widths of the first steel strip 12 and the second steel strip 13 are the same, the glue volume compensation satisfies: v0＝V1And then:
a2×h＝(b+a)2×h0
where a is the width of the coating sub-area 14, b is the width of the first or second strip of steel 12, 13, h is the thickness of the first or second strip of steel 12, 13, h0The target paste thickness (i.e., the thickness of the paste layer 50).
In summary, the present application can provide a way to bond the sub-unit 40 to the substrate 20: firstly, engaging the positioning column 15 on the steel mesh assembly 10 with the positioning hole of the plane to be coated with glue, and ensuring that the steel mesh assembly 10 cannot move in the first direction and the second direction; then, glue is extruded onto the steel mesh assembly 10, and is scraped for a plurality of times in the first direction and the second direction by using a scraper assembly, so that the glue is completely filled into each coating sub-region 14, and the excess glue is removed, and then the steel mesh assembly 10 is removed, so that a plurality of glue portions 30 are formed on the plane to be coated, and the glue coating of the adhering regions of all the sub-units 40 is completed. Then, the sub-unit 40 is flatly placed on the substrate 20, and the plurality of sub-adhesive portions 31 in the corresponding adhesive portion 30 are pressed open by the gravity of the sub-unit 40 and the uniform pressure on the sub-unit 40, so that the front surface of the adhesive is uniformly coated and the sub-unit 40 is bonded.
It should be noted that the above-mentioned bonding manner is only an achievable manner of manual operation, and those skilled in the art may select different implementation manners according to different situations, which is not described herein again.
It should be noted that the thickness of the glue layer 50 between the substrate 20 and the subunit 40 needs to be controlled within 0.2mm to ensure the adhesion effect between the substrate 20 and the subunit 40.
In one implementation, the glue may be silica gel.
It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A gluing device, characterized in that it comprises:
a steel mesh assembly comprising a frame, a plurality of first steel bars equally spaced along a first direction, and a plurality of second steel bars equally spaced along a second direction, the plurality of first steel bars crossing the plurality of second steel bars to define a plurality of coating sub-regions; the first direction and the second direction form an included angle, two ends of each first steel bar are fixedly connected to the frame, and two ends of each second steel bar are fixedly connected to the frame; the steel mesh assembly is also provided with a scraping surface for scraping off the glue, and the surfaces of the plurality of first steel bars and the plurality of second steel bars, which are contacted with the glue, are flush with the scraping surface.
2. The gluing device according to claim 1, further comprising a scraper assembly for cooperating with the scraping surface to scrape the glue off such that a surface of the glue is flush with the scraping surface to form a glue portion.
3. The gluing device according to claim 1, wherein the frame is rectangular, the width of the first steel strip is the same as the width of the second steel strip, the thickness of the first steel strip is the same as the thickness of the second steel strip, and the distance between every two adjacent first steel strips is equal to the distance between every two adjacent second steel strips.
4. The gluing device of claim 3, wherein the steel mesh assembly further comprises a handle provided on the frame.
5. Gluing device according to claim 4, characterised in that the handles are distributed at four corners of the frame.
6. Gluing device according to claim 4, characterised in that the frame further comprises positioning posts for fixing the frame to the plane to be glued, the positioning posts being distributed at the four corners of the frame.
7. Gluing device according to claim 6, characterised in that the positioning post extends 0.5mm beyond a side surface of the frame facing away from the handle.
8. The gluing device according to claim 1, further comprising a vacuum stage for placing the backing plate, a fixing device for fixing the blade assembly, and a control device for controlling the scraping angle of the blade assembly.
9. Gluing device according to claim 8, characterised in that the doctor assembly is provided with glue outlets on opposite sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022373261.1U CN214718007U (en) | 2020-10-22 | 2020-10-22 | Gluing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022373261.1U CN214718007U (en) | 2020-10-22 | 2020-10-22 | Gluing device |
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| Publication Number | Publication Date |
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| CN214718007U true CN214718007U (en) | 2021-11-16 |
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| CN202022373261.1U Active CN214718007U (en) | 2020-10-22 | 2020-10-22 | Gluing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798314A (en) * | 2022-04-13 | 2022-07-29 | 合肥维信诺科技有限公司 | Gluing jig and gluing method |
| CN115889095A (en) * | 2022-11-29 | 2023-04-04 | 京东方科技集团股份有限公司 | Gluing jig |
| CN114798314B (en) * | 2022-04-13 | 2024-04-26 | 合肥维信诺科技有限公司 | Gluing jig and gluing method |
-
2020
- 2020-10-22 CN CN202022373261.1U patent/CN214718007U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798314A (en) * | 2022-04-13 | 2022-07-29 | 合肥维信诺科技有限公司 | Gluing jig and gluing method |
| CN114798314B (en) * | 2022-04-13 | 2024-04-26 | 合肥维信诺科技有限公司 | Gluing jig and gluing method |
| CN115889095A (en) * | 2022-11-29 | 2023-04-04 | 京东方科技集团股份有限公司 | Gluing jig |
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