Elastic gluing device for gluing flexible plate

Abstract

The utility model relates to an elastic gluing device for gluing a flexible plate, which applies pressure to a floating pressing plate through an elastic assembly, and drives the floating pressing plate to compress a spring when the flexible plate is conveyed, so that the glue coating thickness is controlled, and the control is more convenient. Meanwhile, the electronic element groove is formed in the coating area, the electronic element is arranged in the electronic element groove, so that glue can be prevented from being smeared on the electronic element, and the high non-coating surface is arranged corresponding to the first area where glue cannot be smeared, and is in close contact with the first area, so that the glue cannot enter the space between the first area and the non-coating surface; and a gap is reserved between the second area and the coating surface, so that glue can enter the gap for coating, glue leakage can be effectively avoided, and glue coating in the second area is realized. And meanwhile, the elastic assembly can directly penetrate through the flexible plate when the flexible plate meets the connector, the gluing device does not need to be disassembled, the coating efficiency is improved, glue coating is more uniform through elastic force applied by the elastic assembly, and the glue coating device can adapt to glue coating of different coating areas with different thicknesses.

Description

Technical Field

[0001] This utility model relates to the field of flexible board coating device, and in particular to an elastic coating device for coating flexible boards. Background Technology

[0002] In the manufacturing process of precision electronic components such as flexible circuit boards and flexible display modules, the uniformity of adhesive layer thickness in the coating process directly affects product reliability and yield. In the field of electronic equipment manufacturing, the application of flexible boards is becoming increasingly widespread, and the quality of their adhesive coating directly affects product performance and reliability. Currently, most common flexible board coating equipment relies on software control to control adhesive thickness. While software control can adjust adhesive thickness to some extent, it has many limitations. For example, existing equipment cannot flexibly handle joint areas on flexible boards. Due to the special structure of the joints, to ensure coating effectiveness, it is often necessary to disassemble the fixture for manual processing or stop the machine for adjustment. This process is not only cumbersome but also time-consuming. Frequent fixture disassembly leads to production interruptions, significantly reducing coating efficiency and severely impacting overall production progress. Furthermore, manual joint coating makes it difficult to guarantee consistency and stability, easily resulting in uneven coating and other quality problems, increasing the defect rate and raising production costs. Therefore, developing a flexible board gluing device that can efficiently handle joint gluing without frequent jig disassembly and can effectively improve gluing efficiency is of great practical significance. Summary of the Invention

[0003] The technical problem this invention aims to solve is that existing adhesive coating devices often rely on software to control adhesive thickness, or require disassembly at joints, leading to reduced coating efficiency and impacting production schedules. To address these shortcomings, this invention provides an elastic adhesive coating device for flexible boards.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] An elastic adhesive applicator for applying adhesive to flexible boards is constructed. The elastic adhesive applicator includes a fixed base, an elastic base connected to the fixed base, and a track. A floating pressure plate is connected to the elastic base, and an adhesive applicator cover plate is provided on the floating pressure plate. An adhesive dispensing connector is connected to the adhesive dispensing cover plate, and an adhesive dispensing channel is provided on the adhesive dispensing connector. A gap is provided between the floating pressure plate and the adhesive applicator cover plate. The flexible board is continuously conveyed from the track into the gap, and adhesive enters the gap through the adhesive dispensing channel and is applied to the flexible board. The floating pressure plate is connected to the elastic base below via an elastic component, and the elastic force of the elastic component changes the size of the gap and pushes the flexible board closer to the adhesive dispensing cover plate.

[0006] Preferably, the elastic component includes a compression spring and a spring connector corresponding to the compression spring. The lower end of the compression spring is connected to the spring connector. The lower end of the floating pressure plate is provided with a first blind hole corresponding to the upper end of the compression spring. The elastic base is provided with a second through hole corresponding to the spring connector.

[0007] Preferably, a step is provided in the second through hole, the spring connector is placed at the step, and a pressure adjusting block is connected to the lower end of the spring connector to adjust the pressure of the compression spring.

[0008] Preferably, the elastic base is provided with limiting walls on both sides, and a movable part is formed between the limiting walls. The floating pressure plate moves in the movable part along a first direction. A sleeve assembly is also provided between the elastic base and the floating pressure plate, and the sleeve assembly limits the maximum width of the gap.

[0009] Preferably, the sleeve assembly includes a hollow sleeve and a connecting post disposed inside the sleeve. The length of the connecting post is greater than the length of the sleeve. A second through hole is provided on the floating pressure plate corresponding to the connecting post. A step is provided at the second through hole. The sleeve is placed at the step. The connecting post moves within the second through hole. A first through hole is provided on the elastic base corresponding to the sleeve. The two sides of the sleeve are placed at the first through hole and the second through hole.

[0010] Preferably, the floating pressure plate is provided with a first upper end surface, and the lower end of the glue-applying cover plate is provided with a glue-applying area corresponding to the first upper end surface. The glue-applying area is provided with a glue outlet, and the glue outlet is connected to the glue injection channel.

[0011] Preferably, the adhesive coating area is provided with an electronic component slot, and at least one set of non-adhesive coating areas and at least one set of adhesive coating areas are provided. The non-adhesive coating areas are in contact with the first upper surface, and the adhesive coating areas are provided with a gap between them and the first upper surface. The flexible board is provided with electronic components corresponding to the electronic component slots, as well as a first area corresponding to the non-adhesive coating areas and a second area corresponding to the adhesive coating areas.

[0012] Preferably, the non-adhesive area is placed on both sides of the electronic component tank to prevent adhesive from entering the electronic component tank, and sealing posts are provided on both sides of the adhesive area, and sealing grooves are provided on the floating pressure plate corresponding to the sealing posts.

[0013] Preferably, the sealing groove is provided with a second upper end surface on both sides, and the height of the first upper end surface is higher than that of the second upper end surface.

[0014] Preferably, an adhesive cover plate is provided between the adhesive cover plate and the adhesive injection joint. The adhesive cover plate is provided with a fixing hole. One end of the adhesive injection joint is placed in the fixing hole so that the adhesive injection channel communicates with the fixing hole. The track is connected to the fixed base through a track fixing plate. The track fixing plate is provided with a plate groove. The flexible plate moves and is conveyed in the plate groove. Both sides of the track and the fixed base are provided with recesses. The track is also provided with a track fixing hole.

[0015] The beneficial effects of this invention are as follows: Pressure is applied to the floating pressure plate by the elastic component, and the flexible plate can also compress the spring during transport, thereby controlling the adhesive application thickness more conveniently. Simultaneously, an electronic component slot is provided in the coating area. Placing the electronic components in the slot avoids applying adhesive to them. For the first area where adhesive cannot be applied, a higher uncoated surface is provided, which is in close contact with the first area, preventing adhesive from entering between the first area and the uncoated surface. A gap is left between the second area and the coating surface to allow adhesive to enter and be applied, effectively preventing adhesive leakage and enabling adhesive application in the second area. Furthermore, the elastic component can pass directly through the flexible plate when encountering joints without disassembling the adhesive application device, improving coating efficiency. The elastic force applied by the elastic component also makes the adhesive application more uniform, adapting to adhesive application of different thicknesses and coating areas, resulting in more efficient coating. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the adhesive application device according to a preferred embodiment of the present invention;

[0018] Figure 2 This is an exploded view of the adhesive application device according to a preferred embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the connection between the fixed base and the track in a preferred embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the axial structure of the elastic base according to a preferred embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the axial structure of the floating pressure plate in a preferred embodiment of the present invention;

[0022] Figure 6This is a schematic diagram of another axial side structure of the floating pressure plate in a preferred embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the axial structure of the adhesive-coated cover plate according to a preferred embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of another axial side structure of the adhesive-coated cover plate according to a preferred embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the axial structure of the sleeve assembly according to a preferred embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the axial structure of the elastic component according to a preferred embodiment of the present invention;

[0027] Figure 11 This is a schematic diagram of the axial structure of the flexible plate according to a preferred embodiment of the present invention. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] A preferred embodiment of this utility model provides an elastic adhesive coating device for applying adhesive to flexible boards; such as... Figures 1-2 As shown, this adhesive application device is used for applying adhesive to the surface of a flexible board. It includes a fixed base 10, an elastic base 11 and a track fixing plate 16 mounted on the fixed base, and a track 17 mounted on the track fixing plate. The flexible board 18 is conveyed via the track. An adhesive application cover plate 13 is connected to the elastic base 11, and a floating pressure plate 12 is disposed between the adhesive application cover plate 13 and the elastic base 11. A gap 21 is left between the floating pressure plate 12 and the adhesive application cover plate 13, allowing the flexible board to move within the gap. An elastic component 19 connects the floating pressure plate and the elastic base, changing the height of the gap 21 through the elastic component to press the flexible board firmly for adhesive application. An injection cover plate 14 is also connected above the adhesive application cover plate 14, and a glue dispensing connector 15 connected to the injection cover plate allows adhesive to enter the gap and be applied to the flexible board.

[0030] Specifically, such as Figure 2As shown, the glue applicator 15 has a glue injection channel 150. One end of the glue injection channel 150 is a glue inlet hole 151, and the other end is a glue outlet hole 152. The glue applied to the flexible surface enters the glue injection channel 150 through the glue inlet hole 151 and is discharged through the glue outlet hole 152. The glue applicator cover plate 14 has a fixing hole 140 corresponding to the glue applicator 15, and the glue outlet hole is located in the fixing hole.

[0031] Furthermore, such as Figures 5-8 and Figure 11As shown, the adhesive cover plate 13 has an adhesive outlet 131 corresponding to the fixing hole. The fixing hole is a through hole. Adhesive flowing through the outlet hole enters the adhesive application area 130 through the adhesive outlet. The adhesive application area is located on the lower surface of the adhesive cover plate 13. The upper middle part of the floating pressure plate 12 has a first upper end face 121. Sealing grooves 120 are provided on both sides of the first upper end face. Second upper end faces 122 are provided on both sides of the sealing grooves. The height of the first upper end face is higher than that of the second upper end face. Sealing posts 135 are provided on the left and right sides of the adhesive application area 130 corresponding to the sealing grooves. The two sides of the sealing posts form lower end faces that contact the second upper end faces. A gap 21 is formed between the first upper end face 121 and the adhesive application area 130. The flexible board moves within the gap. During the movement, adhesive passes through the adhesive outlet 131 into the adhesive application area and is evenly coated on the surface of the flexible board. Since the flexible board 18 also contains a large number of electronic components 180, and glue cannot often be applied to electronic components, an electronic component groove 132 is provided in the glue application area 130. The electronic component groove passes through the glue outlet, preventing glue from flowing into the electronic component groove, thus avoiding the application of glue to the surface of the electronic component 180. At the same time, the first area 181 within a certain range on both sides of the electronic component is also unsuitable for applying glue, while only the second area 182 on both sides of the first area can be coated with glue. Therefore, non-glue surfaces 133 are provided on both sides of the electronic component groove in the glue application area corresponding to the first area, and the sides of the non-glue surfaces are set as glue surfaces 134. The non-glue surfaces are vertically higher than the glue surfaces. When the glue enters the glue application area 130 through the glue outlet, since the non-glue surfaces 133 are in close contact with the first area 181, and there is a gap between the glue surfaces 134 and the second area 182, the glue can only flow to the area where the glue surfaces 134 are located and be applied to the second area 182 during the movement of the flexible board, but cannot flow to the area where the non-glue surfaces are located and be applied to the first area. It should be noted that in this application, only the first region is set on both sides of the electronic component. Alternatively, the first region can be set on the second region according to the requirements of the flexible board. In this case, it is only necessary to set a step on the adhesive surface to form a non-adhesive surface, preventing the adhesive from entering the non-adhesive surface after passing through the adhesive outlet. Simultaneously, when the sealing posts 135 on both sides are in close contact with the sealing groove 120, the adhesive cannot flow between the contact surfaces of the sealing posts and the sealing groove. By raising the height of the non-coated surface, adhesive is prevented from entering outside the adhesive area, effectively protecting the non-coated area. Furthermore, the first and second regions are merely area divisions on the surface of the flexible board, and they are on the same plane. The specific division can be made according to the actual needs of the flexible board, and will not be described in detail here. Different adhesive cover plates 13 can be used to replace the adhesive areas of the flexible board to achieve coating of different areas of the flexible board.

[0032] Furthermore, such as Figures 4-6 and Figure 9As shown, since different electronic components have different heights, in order to allow electronic components of different heights to pass smoothly through the electronic component slot, adhesive can also be applied to the flexible plate 18. A guide sleeve assembly 20 is provided between the elastic base 11 and the floating pressure plate 12. The guide sleeve assembly includes a sleeve 200 with a hollow center and a connecting post 201 provided inside the sleeve, and the length of the connecting post is greater than the length of the sleeve. The elastic base 11 has a first through hole 110 corresponding to the sleeve. One end of the sleeve is fixedly installed in the first through hole of the elastic base. The lower end of the floating pressure plate has a second through hole 111 corresponding to the other end of the sleeve. A step 111 is provided in the second through hole. The sleeve is fixedly installed between the first through hole 110 of the elastic base and the second sleeve 111 of the floating pressure plate. The connecting column can be located between the first through hole and the step of the second through hole. When the floating pressure plate moves upward to reduce the distance of the gap 21, the floating pressure plate moves upward, while the connecting column is still sleeved on the floating pressure plate. When the floating pressure plate moves downward to increase the distance of the gap, the gap distance is at its maximum when the floating pressure plate contacts the sleeve, thus achieving control of the gap size. The connecting plate can also ensure that the floating pressure plate always moves in the vertical direction. At the same time, to prevent the floating pressure plate from moving left and right, a floating pressure plate movable part 113 is provided in the middle of the elastic base, and floating pressure plate limiting walls 114 are formed on both sides to limit the left and right directions of the floating pressure plate, so that the floating pressure plate moves up and down in the vertical direction within the floating pressure plate movable part.

[0033] Furthermore, such as Figures 4-6 and Figure 10 As shown, an elastic component 19 is also provided between the elastic base 11 and the floating pressure plate 12. The elastic component 19 includes a compression spring 190, a spring connector 191 provided at the lower end of the compression spring, and a pressure adjusting block 192 connected to the spring connector. The pressure of the spring 190 can be adjusted by the pressure adjusting block. The elastic base 11 is provided with a second through hole 111 and a step 112 corresponding to the spring component. The spring connector is placed at the step. The adjustment block 192 can be adjusted through the second through hole. The lower end of the floating pressure plate 12 is provided with a first blind hole 123 corresponding to the spring. The other end of the spring is placed in the first blind hole. When the flexible plate 18 enters the gap, it pushes the floating pressure plate 12 downward to compress the spring. At the same time, the spring's restoring force also provides an upward thrust to the floating pressure plate to press the flexible plate, achieving a more uniform adhesive coating. After the flexible plate is coated, the spring returns to its original position and pushes the floating pressure plate upward, thus completing the adhesive coating operation of the flexible plate 18. Because the compressed spring keeps the floating pressure plate close to the flexible plate, the adhesive coating thickness can be effectively controlled. When encountering a joint, the compressed spring can also move directly through that part without disassembling the fixture, improving the adhesive coating efficiency.

[0034] Furthermore, such as Figures 1-3As shown, the fixed base 10 has base recesses 100 on both sides, and the track 17 has corresponding track recesses 171 on both sides. The recesses can limit and fix the two sides of the gluing device. At the same time, the track is provided with track fixing holes 172 to facilitate the fixation of the track and prevent the track from shaking and affecting the conveying of the flexible board. The track is also provided with a board groove 170, and the flexible board moves in the board groove to achieve conveying, so that the flexible board is conveyed parallel to the gluing area.

[0035] When using the gluing device of this application, a flexible board 18 containing electronic components 180 is placed in the slot 170 of the track 17 and the flexible board is transported to the gluing area. The flexible board entering the gluing area will push the floating pressure plate to press the compression spring downward so that the gluing surface of the flexible board is in close contact with the gluing area, and the electronic components 180 are placed in the electronic component slot 132. The first area 181 corresponds to and is in close contact with the non-gluing surface 132, and the second area 182 corresponds to the gluing surface with a gap. When the flexible board enters the gluing area, it is connected to the glue device through the glue dispensing connector 15, and the glue is put into the glue injection channel 150 through the glue inlet hole 151, and then flows into the glue outlet 130 through the glue outlet hole 152 and then into the gluing surface. During the transportation of the flexible board, it is evenly coated on the second area, thereby completing the gluing operation of the flexible board. The glue coating of the flexible board is more uniform.

[0036] It should be understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An elastic adhesive applicator for applying adhesive to flexible boards, comprising a fixed base, an elastic base and a track connected to the fixed base, a floating pressure plate connected to the elastic base, an adhesive applicator cover plate provided on the floating pressure plate, an adhesive applicator joint connected to the adhesive applicator cover plate, and an adhesive injection channel provided on the adhesive injection joint, characterized in that: The gap is arranged between the floating pressing plate and the glue coating cover plate, the flexible plate is continuously conveyed into the gap from the track, the glue is injected into the gap through the glue injection channel and coated on the flexible plate, the elastic base is connected to the elastic assembly below the floating pressing plate, and the elastic force of the elastic assembly changes the size of the gap and pushes the flexible plate close to the glue injection cover plate.

2. The elastic gluing device according to claim 1, wherein: The elastic assembly comprises a compression spring and a spring connecting piece connected to the compression spring, the lower end of the compression spring is connected to the spring connecting piece, the lower end of the floating pressing plate is provided with a first blind hole corresponding to the upper end of the compression spring, and the elastic base is provided with a second through hole corresponding to the spring connecting piece.

3. The elastic gluing device of claim 2, wherein: A step is arranged in the second through hole, the spring connecting piece is arranged at the step, and a pressure regulating block is connected to the lower end of the spring connecting piece, and the pressure of the compression spring is adjusted through the pressure regulating block.

4. The elastic gluing device of claim 1, wherein: Limiting walls are arranged on both sides of the elastic base, a movable part is formed between the limiting walls, the floating pressing plate moves in the movable part along a first direction, a sleeve assembly is further arranged between the elastic base and the floating pressing plate, and the sleeve assembly limits the maximum width of the gap.

5. The elastic gluing device of claim 4, wherein: The sleeve assembly comprises a hollow sleeve and a connecting column arranged in the sleeve, the length of the connecting column is greater than the length of the sleeve, a second through hole is arranged on the floating pressing plate corresponding to the connecting column, a step is arranged at the second through hole, the sleeve is arranged at the step, the connecting column is movable in the second through hole, a first through hole is arranged on the elastic base corresponding to the sleeve, and the sleeve is arranged at the first through hole and the second through hole on both sides.

6. The elastic application device of any one of claims 1-5, wherein: The floating pressing plate is provided with a first upper end face, the lower end of the glue coating cover plate is provided with a glue coating area corresponding to the first upper end face, a glue flow port is arranged on the glue coating area, and the glue flow port is in communication with the glue injection channel.

7. The elastic gluing device of claim 6, wherein: The glue coating area is provided with an electronic element groove, at least one group of non-glue coating areas and at least one group of glue coating areas, the non-glue coating area is in contact with the first upper end face, a gap is arranged between the glue coating area and the first upper end face, and the flexible plate is provided with an electronic element corresponding to the electronic element groove, a first area corresponding to the non-glue coating area, and a second area corresponding to the glue coating area.

8. The elastic gluing device of claim 7, wherein: The non-glue coating area is arranged on both sides of the electronic element groove to prevent glue from entering the electronic element groove, sealing columns are arranged on both sides of the glue coating area, and sealing grooves are arranged on the floating pressing plate corresponding to the sealing columns.

9. The elastic application device of claim 8, wherein: Second upper end faces are arranged on both sides of the sealing groove, and the height of the first upper end face is higher than that of the second upper end face.

10. The elastic gluing device of claim 1, wherein: A glue coating cover plate is arranged between the glue coating cover plate and the glue joint, a fixing hole is arranged on the glue injection cover plate, one end of the glue joint is arranged in the fixing hole to make the glue injection channel in communication with the fixing hole, the track is connected to the fixing base through a track fixing plate, a plate groove is arranged on the track fixing plate, the flexible plate moves and is conveyed in the plate groove, recessed parts are arranged on both sides of the track and the fixing base, and a track fixing hole is further arranged on the track.

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