A PC board surface coating device

Abstract

This invention proposes a PC board surface coating device, including a coating machine base, an assembly shell mounted on top of the coating machine base, a coating roller mounted inside the assembly shell, a cleaning component and a preheating component mounted on both sides of the coating roller within the coating machine base, a support roller below the coating roller, and several sets of support rollers connected to the assembly shell. Two sets of symmetrically arranged traction components are mounted on the assembly shell. A partition is mounted inside the coating machine base, with several sets of partitions evenly arranged, and an electric heating plate is mounted on the partition. The partitions divide the coating machine base into several drying chambers, each containing a clamping frame with hooks on both sides. By adding several drying chambers within the coating machine base, this invention creates a virtuous cycle, allowing the coating of new PC boards and the drying of coated PC boards to occur simultaneously, improving processing efficiency while ensuring the coating effect on the PC board surface.

Description

Technical Field

[0001] This invention relates to the field of surface coating technology, and more particularly to a PC board surface coating apparatus. Background Technology

[0002] PC sheet, also known as polycarbonate sheet, polyester sheet, or Kapron sheet, is made primarily of polycarbonate using co-extrusion technology. It is resistant to weak acids but not to strong acids, and is not durable or alkali-resistant, requiring a UV coating. However, it is resistant to high temperatures and has good light transmission. PC sun sheet (also known as polycarbonate hollow sheet, glass Kapron sheet, or PC hollow sheet) is made from high-performance engineering plastic polycarbonate (PC) resin. It features high transparency, light weight, impact resistance, sound insulation, heat insulation, flame retardancy, and aging resistance. It is a high-tech, high-performance, energy-saving, and environmentally friendly plastic sheet. Therefore, during PC sheet processing, the surface needs to be coated to enhance its performance. This coating process requires a PC sheet surface coating device.

[0003] After coating the surface of the PC board, it needs to go through the drying process. Usually, the coated PC board needs to be sent into a dryer for drying. Due to the large number of PC boards, multiple coated PC boards are usually transported together in one process and then put into the dryer for drying. The whole process is long, inefficient, and easy to get dust and other foreign matter. Therefore, this invention proposes a PC board surface coating device to solve the problems existing in the prior art. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a PC board surface coating device that offers advantages such as continuous drying and improved efficiency, thereby solving the problems existing in the prior art.

[0005] To achieve the objectives of this invention, the following technical solution is provided: A PC board surface coating device includes a coating machine base, an assembly shell mounted on top of the coating machine base, a coating roller mounted inside the assembly shell, a cleaning component and a preheating component mounted on both sides of the coating roller within the coating machine base, a support roller below the coating roller, and several sets of support rollers connected to the assembly shell, two symmetrically arranged traction components mounted on the assembly shell, partitions evenly arranged in several sets on the inner side of the coating machine base, and electric heating plates mounted on the partitions, the partitions dividing the coating machine base into several drying chambers, a clamping frame within each drying chamber, and hooks mounted on both sides of the clamping frame, the hooks being adapted to the traction components.

[0006] A further improvement is made in that: the clamping frame includes two sets of symmetrically arranged clamping bars, the cross-section of the clamping bars is U-shaped, and two sets of symmetrically arranged sliding rods are provided between the two sets of clamping bars. The two ends of the sliding rods pass through the two sets of clamping bars and are equipped with locking rings. The locking rings are connected to the sliding rods by threads. A front panel is provided on one side of one set of sliding rods, and the front panel is fixedly connected to the middle position of the sliding rod.

[0007] A further improvement is that: the assembly shell is provided with an installation port, and the inner side of the installation port is connected to the traction component. The traction component includes a lead screw, which is located inside the installation port and connected to the assembly shell through a bearing. The lead screw is driven by a first motor. A connecting block is installed on the lead screw, and the connecting block is adapted to the installation port. A traction hook is installed on the connecting block, and the traction hook is adapted to the hook block.

[0008] A further improvement is made in that: a paint cylinder is provided above the coating roller, the bottom of the paint cylinder is provided with an opening, the upper part of the coating roller passes through the opening and is located inside the paint cylinder, the upper end of the paint cylinder is connected to the assembly shell, and the upper end of the paint cylinder is provided with a feed port, a sealing port is provided on the assembly shell above the feed port, and a sealing cap is installed on the sealing port.

[0009] A further improvement is that the cleaning assembly includes two sets of symmetrically arranged fixing plates, which are connected to the assembly shell by bolts. A cleaning roller is provided between the two sets of fixing plates, and the cleaning roller is driven by a second motor.

[0010] A further improvement is that the preheating component includes a base frame, which is fixedly connected to the assembly shell, and an electric heating tube is installed on the inner side of the base frame. Several sets of the electric heating tube are provided. A hollow seat is installed on the top of the base frame, and a reflector is installed on the inner side of the hollow seat.

[0011] A further improvement is that a positioning block is installed on a set of slide rods away from the front panel. The positioning block is located in the middle of the set of slide rods. The positioning block is provided with a slot. A support block is installed on one side of the positioning block inside the coating machine base. The support block is adapted to the slot.

[0012] A further improvement is that the upper and lower sides of the front panel are in contact with the upper and lower sides of the drying chamber, and a handle is installed on the front panel.

[0013] A further improvement is that a scraper is installed below the coating cylinder, and the scraper is adapted to the coating roller.

[0014] A further improvement is that the workpiece is held in the clamping frame, and the thickness of the workpiece is greater than or equal to the thickness of the clamping frame and the front panel.

[0015] The beneficial effects of this invention are as follows: This PC board surface coating device adds several sets of drying chambers inside the coating machine base. Therefore, after coating a set of PC boards, they can immediately enter the drying chamber for low-temperature drying, avoiding high-temperature damage to the performance of the PC boards. Since the PC board surface coating takes a certain amount of time, the first PC board placed can be removed after all the drying chambers are filled, thus forming a virtuous cycle. This improves processing efficiency while ensuring the effect of PC board surface coating. In addition, the clamping frame can continuously clamp the workpiece during the coating and drying processes of the PC board, reducing the number of times and time required for workpiece re-clamping, optimizing the overall processing efficiency, and avoiding errors during re-clamping, thus ensuring the quality of the finished PC board surface coating product. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention.

[0017] Figure 2 This is a side view of the clamping frame structure after placement according to the present invention.

[0018] Figure 3 This is a side view of the clamping frame structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the rear side of the positioning block of the present invention.

[0020] Figure 5 This is a top view schematic diagram of the connection between the traction hook and the connecting block of the present invention.

[0021] Figure 6 This is a front view schematic diagram of the connection between the base frame and the hollow seat of the present invention.

[0022] The components are as follows: 1. Coating machine base; 2. Assembly shell; 3. Coating roller; 4. Support roller; 5. Partition plate; 6. Electric heating plate; 7. Drying chamber; 8. Clamping frame; 9. Hook block; 10. Clamping strip; 11. Slide rod; 12. Locking ring; 13. Front panel; 14. Mounting port; 15. Lead screw; 16. Connecting block; 17. Traction hook; 18. Coating cylinder; 19. Sealing port; 20. Sealing cover; 21. Fixing plate; 22. Cleaning roller; 23. Base frame; 24. Electric heating tube; 25. Hollow seat; 26. Reflector; 27. Positioning block; 28. Slot; 29. ​​Support block; 30. Scraper; 31. Workpiece; 32. Connecting port. Detailed Implementation

[0023] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0024] according to Figures 1-6 As shown, this embodiment proposes a PC board surface coating device, including a coating base 1, which is hollow, and an assembly shell 2 is installed on top of the coating base 1. The assembly shell 2 is also hollow, and both its left and right ends are connected to the outside. Figure 1 As shown, the overall length of the assembly shell 2 is greater than the length of the coating machine base 1, but the upper parts of the left and right ends of the assembly shell 2 are designed to be open, which is convenient for operators to operate.

[0025] A coating roller 3 is installed on the inner side of the assembly shell 2. Both ends of the roller 3 shaft are connected to the assembly shell 2 through bearings and driven by a third motor. The third motor is located on the outer side of the assembly shell 2 and is connected to the assembly shell 2 through a bracket. When working, the rotation direction of the coating roller 3 is adapted to the movement direction of the workpiece 31.

[0026] Specifically, a paint cylinder 18 is provided above the coating roller 3. The bottom of the paint cylinder 18 has an opening. The upper part of the coating roller 3 passes through the opening and is located inside the paint cylinder 18. The upper end of the paint cylinder 18 is connected to the assembly shell 2, meaning the paint cylinder 18 is fixed inside the assembly shell 2, while the part of the coating roller 3 is located at the bottom of the paint cylinder 18. When paint is loaded into the paint cylinder 18, the paint can better contact the coating roller 3, and thus, as the coating roller 3 rotates, it is carried out and further coated onto the surface of the workpiece 31 passing below. A feed inlet is provided at the upper end of the paint cylinder 18 for feeding... A sealing port 19 is provided above the inlet on the assembly shell 2. The size of the sealing port 19 is greater than or equal to the size of the feed port. In this embodiment, the size of the sealing port 19 is the same as the size of the feed port. A sealing cover 20 is installed on the sealing port 19. The sealing cover 20 is connected to the assembly shell 2 by threads, so the sealing cover 20 can be opened. When it is opened, the paint can be loaded into the paint cylinder 18 for subsequent coating operations. Furthermore, a scraper 30 is installed below the paint cylinder 18. The scraper 30 is adapted to the coating roller 3. The scraper 30 is mainly used to ensure the uniformity of the coating thickness.

[0027] Cleaning components and preheating components are installed on both sides of the coating roller 3 inside the coating machine base 1. The cleaning components include two sets of symmetrically arranged fixing plates 21. The fixing plates 21 are connected to the assembly shell 2 by bolts. The assembly shell 2 has a connection port 32, which is adapted to the fixing plates 21. Thus, when the bolts connecting the fixing plates 21 to the assembly shell 2 are unscrewed, the fixing plates 21 can be separated from the assembly shell 2. Specifically, a cleaning roller 22 is provided between the two sets of fixing plates 21. The cleaning roller 22 is driven by a second motor. The second motor is located on the outside of the rear fixing plate 21 and is connected to the rear fixing plate 21 through a bracket. Therefore, when working, the outer side of the cleaning roller 22 is provided with a corresponding soft brush layer. When the second motor drives the cleaning roller 22 to rotate, the cleaning roller 22 cleans the surface of the workpiece 31, thereby achieving a certain dust removal effect. Moreover, when not working, the cleaning roller 22 can be removed as a whole by disassembling the fixing plates 21 for easy cleaning.

[0028] The preheating assembly includes a base frame 23, which is shaped like a U-shape and is fixedly connected to the assembly shell 2. An electric heating tube 24 (with an electric heating wire inside) is installed inside the base frame 23. Several groups of electric heating tubes 24 are provided; in this embodiment, five groups are evenly distributed. A hollow seat 25 is installed above the base frame 23, and a reflector 26 is installed inside the hollow seat 25. Therefore, during operation, the electric heating tubes 24 are activated, and the cooperation between the electric heating tubes 24 and the reflector 26 dries the surface of the coated workpiece 31. Since the workpiece 31 is a PC board, high temperature will have a certain impact on the PC board. Therefore, in this embodiment, it passes under the base frame 23 at a relatively fast speed. Thus, in this device, only high-temperature drying is used to achieve a preheating and shaping effect.

[0029] Below the coating roller 3 is a support roller 4, and there are several sets of support rollers 4. Both ends of the shafts of the several sets of support rollers 4 are connected to the assembly shell 2 through bearings, that is, the support rollers 4 are connected to the assembly shell 2. The support rollers 4 mainly serve to support the workpiece 31. At the same time, they rotate along with the workpiece during its movement. Two sets of symmetrically arranged traction components are installed on the assembly shell 2.

[0030] The position of the traction component corresponds to the workpiece 31 at the placement port and the clamping frame 8. Specifically, an installation port 14 is provided on the assembly shell 2. The length of the installation port 14 is less than the appropriate length of the assembly shell 2, and the inner side of the installation port 14 is connected to the traction component. The traction component includes a lead screw 15, which is located inside the installation port 14 and connected to the assembly shell 2 through a bearing. The lead screw 15 is driven by a first motor. In this embodiment, two sets of the first motor are symmetrically arranged, located at the left and right ends of the lead screw 15 respectively, and connected to the assembly shell 2 through a bracket. The first motor of each group is controlled by a controller. Therefore, during operation, the first motor simultaneously drives the lead screw 15 to rotate. That is, the rotation direction of the lead screw 15 driven by the two groups of first motors is the same. A connecting block 16 is installed on the lead screw 15, and the connecting block 16 is adapted to the mounting port 14. Specifically, the lead screw 15 itself is connected to the connecting block 16 by threads and passes through the connecting block 16. Both the upper and lower end faces of the connecting block 16 are in contact with the assembly shell 2. Therefore, under the action of the threaded connection, when the lead screw 15 rotates, it drives the connecting block 16 to move on the lead screw 15, and at the same time, the connecting block 16... The traction hook 17 is installed on the 6th, and the traction hook 17 is adapted to the hook block 9. Therefore, during operation, the clamping frame 8 after clamping the workpiece 31 is placed on the support roller 4 by hand. At this time, the traction hook 17 is located on one side of the hook block 9. Then, the first motor is started to drive the lead screw 15 to rotate, and the connecting block 16 moves. During the movement, the traction hook 17 hooks the hook block 9. Then, the traction hooks 17 on both sides drive the clamping frame 8 to move. After passing through the cleaning roller 22, it passes through the coating roller 3 for coating. After coating, it passes under the preheating component and is then manually removed. Remove the workpiece and place it directly into the drying chamber 7. Then, return the traction hook 17 to its original position and proceed with the next set of PC board surface coatings. Since PC board surface coating takes time, the overall process is not fast. The drying time for low-temperature coating is generally between 10 and 15 minutes. Therefore, in this device, several sets of drying chambers 7 are placed sequentially. Once full, the PC board (workpiece 31) that was placed into the drying chamber 7 first has met the drying time requirement and can be removed. This process is repeated sequentially to ensure processing efficiency.

[0031] A partition 5 is installed on the inner side of the coating machine base 1. The partition 5 is evenly arranged in several groups. In this embodiment, there are a total of fifteen groups of partition 5. An electric heating plate 6 is installed on the partition 5. The fifteen groups of partition 5 divide the coating machine base 1 into sixteen drying chambers 7. In this embodiment, the drying chamber 7 adopts a low temperature drying method. At the same time, a clamping frame 8 is provided in the drying chamber 7. Hooks 9 are installed on both sides of the clamping frame 8. The hooks 9 are adapted to the traction component. The clamping frame 8 holds the workpiece 31. The thickness of the workpiece 31 is greater than or equal to the thickness of the clamping frame 8 and the front panel 13.

[0032] Specific examples Figure 2 and Figure 3As shown, the clamping frame 8 includes two sets of symmetrically arranged clamping bars 10. The cross-section of the clamping bars 10 is U-shaped, so the length of the inner side of the clamping bar 10 corresponds to the length of the workpiece 31 that can be clamped. Between the two sets of clamping bars 10, there are two sets of symmetrically arranged sliding rods 11. The two ends of the sliding rods 11 pass through the two sets of clamping bars 10 and are equipped with locking rings 12. The locking rings 12 are connected to the sliding rods 11 by threads. Correspondingly, when the position of the sliding rods 11 remains unchanged, the distance between the two sets of clamping bars 10 can be adjusted to adapt to the size of the workpiece 31. After clamping the workpiece 31, the locking rings 12 are tightened to make the locking rings 12 and the clamping bars 10 in close contact, thereby improving the fixing effect. In this embodiment, the sliding rods 11 themselves have external threads.

[0033] A front panel 13 is provided on one side of a set of slide rods 11. The front panel 13 is fixedly connected to the middle position of the slide rods 11. The upper and lower sides of the front panel 13 are in contact with the upper and lower sides of the drying chamber 7. A handle is installed on the front panel 13. Therefore, when the clamping frame 8 is placed, its front panel 13 can be located in the drying chamber 7 and has a certain supporting effect. At the same time, a positioning block 27 is installed on a set of slide rods 11 away from the front panel 13. The positioning block 27 is fixedly connected to the slide rods 11 and is located in the middle position of the set of slide rods 11. The positioning block 27 is provided with a slot 28. A support block 29 is installed on one side of the positioning block 27 in the coating machine base 1. The support block 29 is adapted to the slot 28. That is, after the clamping frame 8 is placed, the support block 29 is connected to the positioning block 27, thus playing a supporting role. In conjunction with the front panel 13, it completes the support of the clamping frame 8.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PC board surface coating apparatus comprising a coating machine base (1), characterized in that: An assembly shell (2) is installed above the coating machine base (1). A roller coating roller (3) is installed inside the assembly shell (2). A cleaning assembly and a preheating assembly are installed on both sides of the roller coating roller (3) inside the coating machine base (1). A support roller (4) is provided below the roller coating roller (3), and several sets of support rollers (4) are provided. All sets of support rollers (4) are connected to the assembly shell (2). Two sets of symmetrically arranged traction assemblies are installed on the assembly shell (2). 1) The inner side is equipped with partitions (5), the partitions (5) are evenly arranged in several groups, and electric heating plates (6) are installed on the partitions (5). The several groups of partitions (5) divide the coating machine base (1) into several drying chambers (7). The drying chamber (7) is equipped with a clamping frame (8). Hooks (9) are installed on both sides of the clamping frame (8), and the hooks (9) are adapted to the traction assembly. The clamping frame (8) includes two sets of clamping bars (10) arranged symmetrically. The cross-section of the 0) is U-shaped. Two sets of symmetrically arranged slide rods (11) are provided between the two sets of clamping bars (10). The two ends of the slide rods (11) pass through the two sets of clamping bars (10) and are equipped with locking rings (12). The locking rings (12) are connected to the slide rods (11) by threads. A front panel (13) is provided on one side of one set of slide rods (11). The front panel (13) is fixedly connected to the middle position of the slide rod (11). The assembly shell (2) is provided with an installation port (14). The inner side of the mounting port (14) is connected to the traction assembly. The traction assembly includes a lead screw (15), which is located inside the mounting port (14) and connected to the assembly housing (2) through a bearing. The lead screw (15) is driven by a first motor. A connecting block (16) is mounted on the lead screw (15), and the connecting block (16) is adapted to the mounting port (14). A traction hook (17) is mounted on the connecting block (16), and the traction hook (17) is adapted to the hook block (9).

2. A PC board surface coating apparatus according to claim 1, wherein: A paint cylinder (18) is provided above the coating roller (3). The bottom of the paint cylinder (18) is provided with an opening. The upper part of the coating roller (3) passes through the opening and is located inside the paint cylinder (18). The upper end of the paint cylinder (18) is connected to the assembly shell (2). The upper end of the paint cylinder (18) is provided with a feed port. A sealing port (19) is provided on the assembly shell (2) above the feed port. A sealing cap (20) is installed on the sealing port (19).

3. A PC board surface coating apparatus according to claim 1, wherein: The cleaning assembly includes two sets of symmetrically arranged fixing plates (21), which are connected to the assembly shell (2) by bolts. A cleaning roller (22) is provided between the two sets of fixing plates (21), and the cleaning roller (22) is driven by a second motor.

4. The PC board surface coating apparatus according to claim 1, characterized in that: The preheating component includes a base frame (23), which is fixedly connected to the assembly shell (2). An electric heating tube (24) is installed on the inner side of the base frame (23). The electric heating tube (24) is provided in several groups. A hollow seat (25) is installed above the base frame (23). A reflector (26) is installed on the inner side of the hollow seat (25).

5. The PC board surface coating apparatus according to claim 1, characterized in that: A positioning block (27) is installed on a set of slide bars (11) away from the front panel (13). The positioning block (27) is located in the middle of the set of slide bars (11). The positioning block (27) has a slot (28). A support block (29) is installed on one side of the positioning block (27) in the coating machine base (1). The support block (29) is adapted to the slot (28).

6. The PC board surface coating apparatus according to claim 1, characterized in that: The upper and lower sides of the front panel (13) are in contact with the upper and lower sides of the drying chamber (7), and a handle is installed on the front panel (13).

7. The PC board surface coating apparatus according to claim 2, characterized in that: A scraper (30) is installed below the paint cylinder (18), and the scraper (30) is adapted to the coating roller (3).

8. The PC board surface coating apparatus according to claim 1, characterized in that: The clamping frame (8) holds a workpiece (31), and the thickness of the workpiece (31) is greater than or equal to the thickness of the clamping frame (8) and the front panel (13).

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