Coating device for peelable copper foil production

Abstract

The utility model relates to the technical field of copper foil coating, in particular to a coating device for peelable copper foil production, which comprises a base, mounting racks symmetrically arranged at the top of the base and a storage box used for storing coating, a dye frame arranged between the two mounting racks, a partition plate arranged inside the dye frame, and a coating layer arranged inside the partition plate, a driving shaft is further rotationally arranged in the dye frame, a driving wheel is arranged outside the driving shaft, a coating roller used for coating the bottom of the copper foil is arranged outside the driving shaft, the side wall of the material storage box communicates with a discharging pipe, spraying is conducted through a spraying head outside the spraying pipe, coating work can be conducted on the upper surface of the copper foil, and then the copper foil is moved; when the copper foil moves, the coating roller is driven to rotate, when the coating roller rotates, the coating in the dye frame adheres to the surface of the coating roller, coating work can be conducted on the bottom of the copper foil through contact between the lower surface of the copper foil and the surface of the coating roller, and coating treatment can be conducted on the two faces of the copper foil.

Description

Technical Field

[0001] This utility model relates to the field of copper foil coating technology, specifically to a coating apparatus for the production of peelable copper foil. Background Technology

[0002] Peelable ultrathin copper foil is the substrate for chip packaging substrates (IC carriers, substrate-like boards) and high-density interconnect (HDI) boards. With the rapid development of semiconductor chip technology and increasingly advanced manufacturing processes, the trend towards thinner IC carriers and substrate-like boards is inevitable. The use of peelable ultrathin copper foil can significantly reduce the thickness and weight of PCBs and IC carriers, meeting the demand for thinner and lighter end-product electronic devices. Furthermore, it can also be applied to printed circuit boards (PCBs), flexible displays, and new energy vehicle batteries.

[0003] Chinese Patent Publication No. CN214132289U discloses a spraying device for copper foil production, comprising two symmetrical fixed plates, a conveyor belt between the two fixed plates, rollers at both ends of the conveyor belt, and a drive gear at the end of the shaft. The output shaft of a motor is coaxially connected to the shaft of one of the rollers. A storage box is located in the middle of the fixed plates, and a paint pump is installed on one side of the storage box. An extrusion roller is also located near the right end of the fixed plates, and a driven gear is located at the end of the shaft on the extrusion roller. A spraying pipe is also located near the right end between the two fixed plates. In this spraying device for copper foil production, the storage box is installed and works with the motor. Spraying is carried out through the spraying pipe and spray head. With the cooperation of the extrusion roller, the copper foil to be sprayed is pressed flat for easy subsequent spraying. The installation of heating wire allows for rapid drying and prevents the sprayed paint from sticking together.

[0004] The aforementioned device uses a spray head to coat one side of the copper foil. However, when the copper foil is used in high-precision circuit boards, both sides of the copper foil need to be coated to enhance the bonding force with the insulating material. The aforementioned device cannot coat both sides of the copper foil at the same time. When the other side of the copper foil needs to be coated, the copper foil must be flipped over and recoated, which reduces the overall work efficiency. Utility Model Content

[0005] To address the aforementioned issues, a coating apparatus for producing peelable copper foil is provided. The apparatus sprays coating onto the upper surface of the copper foil via a spray nozzle outside a spray pipe. The copper foil is then moved, causing a coating roller to rotate. As the coating roller rotates, the coating material from inside the dye frame adheres to its surface. The bottom of the copper foil is coated through contact between its lower surface and the coating roller surface, allowing both sides of the copper foil to be coated.

[0006] To address the problems of existing technologies, this utility model provides a coating device for producing peelable copper foil, comprising a base, on the top of which are symmetrically arranged mounting frames and a storage bin for storing coating material. A dye frame is arranged between the two mounting frames, and a partition plate is arranged inside the dye frame. A drive shaft is rotatably arranged inside the dye frame, and a drive wheel is arranged outside the drive shaft. A coating roller for applying coating material to the bottom of the copper foil is arranged outside the drive shaft. A discharge pipe is connected to the side wall of the storage bin, and one end of the discharge pipe passes through the partition plate and communicates with the interior of the dye frame. A drying assembly for drying the copper foil is also arranged on the top of the base.

[0007] Preferably, a spray pipe is provided between the two mounting brackets, and the outside of the spray pipe is connected to multiple spray heads for applying coating to the top of the copper foil. A material pump for transporting the coating is provided on the top of the base. The input end of the material pump is connected to the inside of the storage tank through a pipe, and the output end of the material pump is connected to the spray pipe.

[0008] Preferably, a rotating rod is rotatably provided inside the partition plate, one end of the rotating rod is rotatably connected to the inner wall of the dye frame, a driven wheel is provided outside the rotating rod and meshes with the driving wheel, a turntable is provided at the other end of the rotating rod, a connecting block is rotatably provided on the outer wall of the turntable, a movable plate is rotatably provided at one end of the connecting block, and a blocking block for blocking the outlet of the discharge pipe is provided on one side of the movable plate.

[0009] Preferably, the dye frame is provided with symmetrical spring telescopic rods inside, and the telescopic ends of the spring telescopic rods are connected to the bottom of the movable plate.

[0010] Preferably, the drying assembly includes a drying rack disposed on top of the base, and heating tubes are disposed opposite each other inside the drying rack.

[0011] Preferably, the bottom of the base is further provided with a guide roller for guiding the movement of the copper foil.

[0012] The advantages of this utility model compared to the prior art are:

[0013] The coating is applied to the upper surface of the copper foil by spraying from the spray nozzles outside the spray pipe. Then, the copper foil is moved, which drives the coating roller to rotate. When the coating roller rotates, the coating inside the dye frame adheres to its surface. The bottom of the copper foil is coated by contact between the lower surface of the copper foil and the surface of the coating roller, so that both sides of the copper foil can be coated. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a coating apparatus for the production of peelable copper foil.

[0015] Figure 2 This is a side view of a coating apparatus for the production of peelable copper foil.

[0016] Figure 3 This is a schematic diagram of the structure of some components in a coating apparatus used for the production of peelable copper foil.

[0017] Figure 4 This is a schematic diagram of the internal structure of a dye frame in a coating apparatus used for the production of peelable copper foil.

[0018] Figure 5 This is a schematic diagram of the driving wheel and driven wheel in a coating device used for the production of peelable copper foil.

[0019] Figure 6 This is a schematic diagram of the structure of a sealing block in a coating apparatus used for the production of peelable copper foil.

[0020] The following are the labels in the diagram: 1. Base; 2. Mounting frame; 3. Spray pipe; 4. Spray head; 5. Storage box; 6. Drying rack; 7. Heating pipe; 8. Guide roller; 9. Paint roller; 10. Dye frame; 11. Feed pump; 12. Discharge pipe; 13. Divider plate; 14. Movable plate; 15. Spring telescopic rod; 16. Drive shaft; 17. Drive wheel; 18. Driven wheel; 19. Rotating rod; 20. Turntable; 21. Connecting block; 22. Sealing block. Detailed Implementation

[0021] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 6 As shown, this utility model provides:

[0023] A coating apparatus for producing peelable copper foil includes a base 1, with mounting frames 2 and a storage tank 5 for storing coating material symmetrically arranged on the top of the base 1. A dye frame 10 is arranged between the two mounting frames 2. A partition plate 13 is arranged inside the dye frame 10. A drive shaft 16 is rotatably arranged inside the dye frame 10. A drive wheel 17 is arranged outside the drive shaft 16. A coating roller 9 for applying coating material to the bottom of the copper foil is arranged outside the drive shaft 16. A discharge pipe 12 is connected to the side wall of the storage tank 5. One end of the discharge pipe 12 passes through the partition plate 13 and is connected to the interior of the dye frame 10. A drying assembly for drying the copper foil is also arranged on the top of the base 1.

[0024] The coating roller 9 rotates, causing the coating stored inside the dye box 10 to adhere evenly to its surface. Then, through close contact between the lower surface of the copper foil and the surface of the coating roller 9, coating is applied to the bottom area of ​​the copper foil, ensuring uniform coverage of the bottom surface and completing the coating transfer and application process.

[0025] like Figure 2 As shown, a spray pipe 3 is provided between the two mounting brackets 2. Multiple spray heads 4 for applying coating to the top of the copper foil are connected to the outside of the spray pipe 3. A material pump 11 for transporting coating is provided on the top of the base 1. The input end of the material pump 11 is connected to the inside of the storage tank 5 through a pipe, and the output end of the material pump 11 is connected to the spray pipe 3.

[0026] By using the feed pump 11, the paint inside the storage tank 5 can be effectively extracted and transported, allowing it to smoothly enter the internal piping system of the spray pipe 3. Subsequently, the paint flows inside the spray pipe 3, eventually reaching the spray head 4 outside the spray pipe 3. The spray head 4 is designed with multiple fine nozzles, capable of spraying the paint evenly and meticulously, thereby achieving precise coating application on the surface of the copper foil, ensuring uniform paint coverage and efficient coating results.

[0027] like Figure 5 and Figure 6 As shown, a rotating rod 19 is rotatably arranged inside the partition plate 13. One end of the rotating rod 19 is rotatably connected to the inner wall of the dye frame 10. A driven wheel 18 that meshes with the driving wheel 17 is arranged outside the rotating rod 19. A turntable 20 is arranged at the other end of the rotating rod 19. A connecting block 21 is rotatably arranged on the outer wall of the turntable 20. A movable plate 14 is rotatably arranged at one end of the connecting block 21. A blocking block 22 for blocking the outlet of the discharge pipe 12 is arranged on one side of the movable plate 14.

[0028] The drive shaft 16 and the drive wheel 17 rotate, thereby driving the driven wheel 18, the rotating rod 19 and the turntable 20 to rotate. When the turntable 20 rotates, it also drives the connecting block 21 on its side wall to move, which in turn drives the movable plate 14 and the sealing block 22 to move up and down. At this time, the sealing block 22 will intermittently block the outlet end of the discharge pipe 12. When the sealing block 22 moves away from the outlet end of the discharge pipe 12, the paint inside the storage box 5 will enter the interior of the dye frame 10 through the discharge pipe 12, thereby replenishing the paint consumed inside the dye frame 10 and preventing the paint inside the dye frame 10 from being too low, which would prevent the paint roller 9 from being able to pick up paint.

[0029] like Figure 5 As shown, the dye frame 10 has symmetrical spring telescopic rods 15 inside, and the telescopic ends of the spring telescopic rods 15 are connected to the bottom of the movable plate 14.

[0030] After the copper foil is coated, it will fall off and come into contact with the coating roller 9. At this time, under the operation of the spring telescopic rod 15, the sealing block 22 will block the outlet end of the discharge pipe 12 to prevent too much coating from entering the interior of the dye frame 10 and causing the coating to overflow.

[0031] like Figure 1 and Figure 2 As shown, the drying assembly includes a drying rack 6 disposed on top of the base 1, and heating tubes 7 are disposed opposite each other inside the drying rack 6.

[0032] The heating tube 7 inside the drying rack 6 can dry the copper foil after the coating is applied, thereby increasing the drying speed of the coating on the copper foil surface.

[0033] like Figure 1 and Figure 2 As shown, the bottom of the base 1 is also provided with a guide roller 8 for guiding the movement of the copper foil.

[0034] The guide roller 8 can correctly guide the movement of the copper foil, preventing the copper foil from shifting its position during movement, which would prevent the coating process from being completed.

[0035] Working principle: When coating copper foil is required, one end of the copper foil is placed on the surface of the coating roller 9. Then, the coating material inside the storage tank 5 is transported to the spray pipe 3 by the feed pump 11. The coating material is then sprayed out by the spray head 4 outside the spray pipe 3 to coat the upper surface of the copper foil. The copper foil is then moved, which drives the coating roller 9 to rotate. When the coating roller 9 rotates, the coating material inside the dye frame 10 adheres to its surface. The bottom of the copper foil is coated by the contact between the lower surface of the copper foil and the surface of the coating roller 9, so that both sides of the copper foil can be coated. The rotation of the coating roller 9 also drives the drive shaft 16 and the drive wheel 17 to rotate. The drive wheel 17, in conjunction with the driven wheel 18, drives the rotating rod 19 and the turntable 20 to rotate. When the turntable 20 rotates, it also drives the connecting block 21 on its side wall to move. The movement further drives the movable plate 14 and the sealing block 22 to move up and down reciprocally. At this time, the sealing block 22 will intermittently block the outlet end of the discharge pipe 12. When the sealing block 22 moves away from the outlet end of the discharge pipe 12, the paint inside the storage box 5 will enter the interior of the dye frame 10 through the discharge pipe 12, thereby replenishing the paint consumed inside the dye frame 10 and preventing the paint inside the dye frame 10 from being too low, which would prevent the paint roller 9 from being able to pick up the paint. After that, the copper foil with the paint is dried by the drying component, which increases the drying speed of the paint on the surface of the copper foil. When the copper foil is finished with the paint, it will fall off and contact the paint roller 9. At this time, under the action of the spring telescopic rod 15, the sealing block 22 will keep blocking the outlet end of the discharge pipe 12 to prevent too much paint from entering the interior of the dye frame 10 and causing the paint to overflow.

[0036] The above embodiments merely illustrate one or several implementation methods of the coating apparatus for producing peelable copper foil according to this utility model. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

[0037] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A coating apparatus for producing peelable copper foil, characterized in that, The system includes a base (1), on which mounting brackets (2) and a storage box (5) for storing coating are symmetrically arranged on the top. A dye frame (10) is arranged between the two mounting brackets (2). A partition plate (13) is arranged inside the dye frame (10). A drive shaft (16) is rotatably arranged inside the dye frame (10). A drive wheel (17) is arranged outside the drive shaft (16). A coating roller (9) for applying coating to the bottom of the copper foil is arranged outside the drive shaft (16). A discharge pipe (12) is connected to the side wall of the storage box (5). One end of the discharge pipe (12) passes through the partition plate (13) and is connected to the inside of the dye frame (10). A drying component for drying the copper foil is also arranged on the top of the base (1).

2. The coating apparatus for peelable copper foil production according to claim 1, wherein A spray pipe (3) is provided between the two mounting brackets (2). The outside of the spray pipe (3) is connected to a plurality of spray heads (4) for applying coating to the top of the copper foil. A material pump (11) for transporting coating is provided on the top of the base (1). The input end of the material pump (11) is connected to the inside of the storage tank (5) through a pipe. The output end of the material pump (11) is connected to the spray pipe (3).

3. The coating apparatus for peelable copper foil production according to claim 1, wherein The partition plate (13) is rotatably equipped with a rotating rod (19). One end of the rotating rod (19) is rotatably connected to the inner wall of the dye frame (10). The rotating rod (19) is equipped with a driven wheel (18) that meshes with the driving wheel (17) on the outside. The other end of the rotating rod (19) is equipped with a turntable (20). The outer wall of the turntable (20) is rotatably equipped with a connecting block (21). One end of the connecting block (21) is rotatably equipped with a movable plate (14). One side of the movable plate (14) is equipped with a blocking block (22) for blocking the outlet of the discharge pipe (12).

4. A coating apparatus for producing peelable copper foil according to claim 1, characterized in that, The dye frame (10) is provided with symmetrical spring telescopic rods (15) inside, and the telescopic end of the spring telescopic rods (15) is connected to the bottom of the movable plate (14).

5. A coating apparatus for producing peelable copper foil according to claim 1, characterized in that, The drying assembly includes a drying rack (6) disposed on top of the base (1), and heating tubes (7) are disposed opposite each other inside the drying rack (6).

6. The coating apparatus for peelable copper foil production according to claim 1, wherein The bottom of the base (1) is also provided with a guide roller (8) for guiding the movement of the copper foil.

Images