Circuit board surface coating machine for circuit board production

Abstract

The utility model relates to a circuit board surface coating machine for circuit board production, which comprises a base, and the top of the base is provided with a working groove; and the number of the coating units is two, and the two coating units are arranged by 90 degrees in an annular array with the central axis of the working groove as the reference and used for coating the surface of the circuit board with a protective layer. The utility model relates to the technical field of circuit board production. According to the circuit board surface coating machine for circuit board production, by arranging the two coating units, the front face and the back face of a circuit board can be coated with protective layers at the same time, the machining procedures of the circuit board are greatly reduced, and therefore the machining efficiency of the circuit board is effectively improved; and the circuit board is automatically turned over on a path from the first coating unit to the second coating unit, so that the stability of double-sided coating of the circuit board is effectively ensured, and the circuit board surface coating machine is more practical.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit board production, and in particular to a circuit board surface coating machine for circuit board production. Background Technology

[0002] Circuit board surface coating machines have a wide range of applications, primarily in the electronics manufacturing industry, to protect circuit board surfaces and provide insulation. Coating technologies typically include various methods such as spraying, dip coating, and selective coating, effectively preventing circuit boards from being affected by environmental factors such as moisture and dust during use.

[0003] According to Chinese Patent Publication No. CN222381877U, which discloses a circuit board surface coating device for circuit board production, this utility model discloses a circuit board surface coating device for circuit board production, which relates to the field of circuit board production technology. To address the problem that existing circuit boards are typically transported to a nozzle via a conveyor belt for coating, resulting in low efficiency and failing to effectively improve the coating efficiency, this device includes a processing table; it also includes a disc disposed on the upper surface of the processing table. A servo motor is disposed at the bottom of the processing table, and the servo motor is located below the center of the disc. A connecting rod is disposed at the upper end of the servo motor, extending upward and connecting to the bottom of the disc. The servo motor drives the connecting rod to rotate the disc. The surface of the disc is integrally formed with a locking groove.

[0004] According to the aforementioned patent, multiple engagement grooves are provided on the surface of the disc to improve coating efficiency. However, circuit boards usually have two sides, front and back. This coating method requires coating the front side first, and then reloading the circuit board after unloading to coat the back side. This makes the circuit board coating process cumbersome and affects the circuit board production efficiency. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a circuit board surface coating machine for circuit board production, so as to solve the technical problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A circuit board surface coating machine for circuit board production includes a base, and a working groove is provided on the top of the base.

[0008] The coating unit consists of two units arranged in a 90-degree circular array with the central axis of the working tank as the reference, used to coat the surface of the circuit board with a protective layer.

[0009] It also includes a feeding assembly, which is set in the working tank. The feeding assembly mainly consists of a disc, a drive motor, a placement mold, a gear, an arc rack, and an unloading unit. The drive motor is fixedly connected in the working tank, and the output shaft of the drive motor is fixedly connected to the disc. The outer periphery of the disc has multiple notches machined in a ring array. The placement mold for placing circuit boards is connected to the unloading unit in the notches. A bushing is fixedly connected to the side of the placement mold near the drive motor, and a gear is fixedly connected to the side of the bushing away from the placement mold. An arc rack that meshes with the gear is connected to the working tank near the middle of the two coating units.

[0010] Furthermore, the number of teeth of the arc-shaped rack is half the number of teeth of the gear, and an annular groove for accommodating the arc-shaped rack is provided at the bottom of the disk.

[0011] Furthermore, the placement mold has an opening on the side away from the drive motor, and a placement groove is formed on the side wall of the opening.

[0012] Furthermore, the unloading unit includes a push rod motor and a push plate. The push rod motor is installed inside the disc, and the push plate is disposed inside the opening. The output shaft of the push rod motor passes through the bushing and is rotatably connected to the push plate.

[0013] Furthermore, a square groove communicating with the working groove is provided on the top side of the base away from the coating unit, and the bottom wall of the square groove is flush with the bottom wall of the placement groove.

[0014] Furthermore, a discharge hopper is fixedly connected to the outer wall of the base near one of the square slots, and a storage frame is connected to the outer wall of the base near the other square slot.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] 1. This circuit board surface coating machine for circuit board production, by setting two coating units, can simultaneously coat the front and back sides of the circuit board with a protective layer, greatly reducing the processing steps of the circuit board and thus effectively improving the processing efficiency of the circuit board. The gears and arc-shaped racks can flip the circuit board, allowing the circuit board to automatically flip on the way from the first coating unit to the second coating unit, thereby effectively ensuring the stability of double-sided coating of the circuit board and making the circuit board surface coating machine more practical.

[0017] 2. This circuit board surface coating machine for circuit board production, by setting a square groove and making the bottom wall of the square groove flush with the bottom wall of the placement groove of the mold, allows the circuit board to be directly pushed into the placement groove by a robot arm when the placement mold moves to the square groove position, realizing the rapid loading of circuit boards. After the circuit board surface coating is completed, when the placement mold is aligned with another square groove as the disc rotates, the circuit board can be pushed out and unloaded by the unloading unit, which can greatly improve the production efficiency of circuit boards. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, 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.

[0019] Figure 1 This is a schematic diagram of the structure of a circuit board surface coating machine for circuit board production according to the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of a circuit board surface coating machine for circuit board production according to the present invention.

[0021] Figure 3 This is an exploded view of the coating unit in a circuit board surface coating machine for circuit board production according to this utility model.

[0022] Figure 4 This is a schematic diagram of the internal structure of the disc in a circuit board surface coating machine for circuit board production according to the present invention.

[0023] In the diagram, 1. Base; 2. Coating unit; 3. Feeding assembly; 31. Disc; 32. Drive motor; 33. Mold placement; 34. Gear; 35. Arc rack; 36. Unloading unit; 361. Push rod motor; 362. Push plate; 4. Working groove; 5. Notch; 6. Bushing; 7. Annular groove; 8. Opening; 9. Placement groove; 10. Square groove; 11. Unloading hopper; 12. Storage frame. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. Example

[0025] Reference Figure 1 - Figure 4 The present invention discloses a circuit board surface coating machine for circuit board production, which includes a base 1 and a working groove 4 on the top of the base 1.

[0026] There are two coating units 2, which are arranged in a 90-degree circular array with the central axis of the working groove 4 as the reference, and are used to coat the surface of the circuit board with a protective layer.

[0027] It also includes a feeding assembly 3, which is set in the working groove 4. The feeding assembly 3 mainly consists of a disc 31, a drive motor 32, a placement mold 33, a gear 34, an arc rack 35, and an unloading unit 36. The drive motor 32 is fixedly connected in the working groove 4. The output shaft of the drive motor 32 is fixedly connected to the disc 31. Multiple notches 5 are machined in an annular array on the outer periphery of the disc 31. The placement mold 33 for placing circuit boards is connected to the unloading unit 36 ​​in the notches 5. A bushing 6 is fixedly connected to the side of the placement mold 33 near the drive motor 32. A gear 34 is fixedly connected to the side of the bushing 6 away from the placement mold 33. An arc rack 35 that meshes with the gear 34 is connected to the working groove 4 near the middle of the two coating units 2.

[0028] In this embodiment, observation Figure 1 It can be seen that by setting a working groove 4 on the top of the base 1, and setting two coating units 2 in a 90-degree circular array on the top of the base 1 with the central axis of the working groove 4 as a reference, a protective layer can be applied to the surface of the circuit board.

[0029] Subsequently, further integration Figure 1 and Figure 2 It can be seen that a feeding assembly 3 is provided in the working groove 4. The feeding assembly 3 mainly consists of a disc 31, a drive motor 32, a placement mold 33, a gear 34, an arc rack 35, and a unloading unit 36. The drive motor 32 is fixedly connected in the working groove 4. The output shaft of the drive motor 32 is fixedly connected to the disc 31. Multiple notches 5 are machined in a ring array on the outer periphery of the disc 31. The placement mold 33 for placing circuit boards is connected to the unloading unit 36 ​​in the notches 5. At the same time, an opening 8 is machined on the side of the placement mold 33 away from the drive motor 32. A placement groove 9 is opened on the side wall of the opening 8. The circuit board can be placed in the placement groove 9 of the placement mold 33. Then, by controlling the operation of the drive motor 32, the disc 31 is rotated, thereby moving the circuit board in the placement mold 33 to the position of the coating unit 2, and coating the surface of the circuit board with a protective layer.

[0030] Then looked at Figure 3 It can be observed that an arc-shaped toothed rack 35 is attached to the working tank 4 near the middle of the two coating units 2, and further combined with Figure 4It can be seen that a bushing 6 is fixedly connected to the side of the placement mold 33 near the drive motor 32, and a gear 34 is fixedly connected to the side of the bushing 6 away from the placement mold 33. When the disc 31 rotates and the placement mold 33 moves to the position of the arc rack 35 through the meshing of the gear 34 and the arc rack 35, the placement mold 33 rotates through the meshing of the gear 34 and the arc rack 35, so as to achieve the effect of flipping the circuit board. The flipped circuit board will then be coated with a protective layer on the reverse side under the operation of the second coating unit 2, which can effectively improve the coating efficiency of the circuit board.

[0031] The coating unit 2 mentioned above is equivalent to "support rod, fixing frame, drive motor, rotating rod, mounting block, slide groove, slider, threaded hole, fan-shaped nozzle, external thread, water tank and flexible water pipe" in Chinese Patent Publication No. CN222381877U. Since no improvements have been made to it, it will not be described in detail.

[0032] In a further preferred embodiment of this utility model, such as Figure 3 and Figure 4 As shown, the number of teeth of the arc-shaped rack 35 is half the number of teeth of the gear 34, and the bottom of the disk 31 is provided with an annular groove 7 for accommodating the arc-shaped rack 35.

[0033] In this embodiment, since the placement mold 33 is driven to rotate by the gear 34 passing through the arc rack 35, in order to ensure that the flipping angle of the placement mold 33 is 180 degrees, the number of teeth of the arc rack 35 is half the number of teeth of the gear 34, thereby ensuring the stability of the circuit board flipping.

[0034] At the same time, look towards Figure 4 It can be seen that, in order to prevent the disc 31 from colliding with the arc-shaped rack 35 when it rotates, an annular groove 7 is provided at the bottom of the disc 31 to accommodate the arc-shaped rack 35, which can ensure the stability of the disc 31 rotation.

[0035] In a further preferred embodiment of this utility model, such as Figure 2 and Figure 4 As shown, the unloading unit 36 ​​includes a push rod motor 361 and a push plate 362. The push rod motor 361 is installed inside the disc 31, and the push plate 362 is disposed inside the opening 8. The output shaft of the push rod motor 361 passes through the bushing 6 and is rotatably connected to the push plate 362.

[0036] In this embodiment, the unloading unit 36 ​​is mainly composed of a push rod motor 361 and a push plate 362. The push rod motor 361 is installed inside the disc 31, and the push plate 362 is set inside the opening 8. The output shaft of the push rod motor 361 passes through the bushing 6 and is rotatably connected to the push plate 362. After the circuit board is coated on both sides, the push rod motor 361 pushes the push plate 362 to move inside the opening 8, thereby pushing the circuit board placed on the placement mold 33 down, realizing automatic unloading and further improving the production efficiency of the circuit board.

[0037] In a further preferred embodiment of this utility model, such as Figure 1 As shown, a square groove 10 communicating with the working groove 4 is provided on the top side of the base 1 away from the coating unit 2, and the bottom wall of the square groove 10 is flush with the bottom wall of the placement groove 9.

[0038] A discharge hopper 11 is fixedly connected to the outer wall of the base 1 near one of the square grooves 10, and a storage frame 12 is connected to the outer wall of the base 1 near the other square groove 10.

[0039] In this embodiment, observation Figure 1 It can be seen that by providing a square groove 10 connected to the working groove 4 on the top side of the base 1 away from the coating unit 2, and the bottom wall of the square groove 10 being flush with the bottom wall of the placement groove 9, the circuit board can be placed through one of the square grooves 10 during the circuit board coating process. When the placement mold 33 moves to the position of the square groove 10, the circuit board is pushed into the placement groove 9 by the robot arm, realizing the rapid loading action of the circuit board. After the coating is completed on the surface of the circuit board, when the placement mold 33 is aligned with the other square groove 10 as the disc 31 rotates, the circuit board can be pushed out and unloaded by the unloading unit 36, which can greatly improve the production efficiency of the circuit board.

[0040] Further observation was then conducted. Figure 1 It can be seen that a discharge hopper 11 is fixedly connected to the outer wall of the base 1 near one of the square slots 10, which provides guidance when unloading circuit boards and improves the unloading efficiency. A storage frame 12 is connected to the outer wall of the base 1 near the other square slot 10, which can be used to place circuit boards in batches in the storage frame 12 and improve the loading efficiency.

[0041] The implementation principle of the above embodiment is as follows: Circuit boards to be coated with a protective layer are placed in batches in the storage frame 12. Then, a robotic arm picks up the circuit boards and places them in the corresponding square slots 10. When the drive motor 32 controls the disk 31 to rotate so that the placement mold 33 is aligned with the square slot 10, the robotic arm pushes the circuit board into the placement groove 9, thus realizing the loading of the circuit boards. As the disk 31 continues to rotate, the square slot 10 will be aligned with the new placement mold 33. At this time, the robotic arm only needs to repeat the loading action to efficiently load the circuit boards into the placement mold 33.

[0042] Once the placement mold 33 contains the circuit board, as the disc 31 continues to rotate, the circuit board is moved to the working area of ​​the first coating unit 2. The coating unit 2 applies a protective layer to the front side of the circuit board. After the protective layer on the front side is applied, as the disc 31 continues to rotate, the gear 34 of the placement mold 33 comes into contact with the arc-shaped rack 35. The arc-shaped rack 35 pushes the placement mold 33 to rotate 180 degrees, thereby flipping the circuit board. When the placement mold 33 enters the working area of ​​the next coating unit 2, the coating unit 2 applies a protective layer to the back side of the circuit board, achieving efficient processing of the circuit board.

[0043] Finally, once the circuit board is processed, it will be moved to another square slot 10. At this point, the unloading unit 36 ​​will push the circuit board out, allowing it to be unloaded from the unloading hopper 11, thus completing the coating process.

[0044] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A circuit board surface coating machine for circuit board production, comprising a base (1), a working groove (4) is formed on the top of the base (1); two coating units (2) are arranged, the two coating units (2) are arranged in a 90-degree annular array with the central axis of the working groove (4) as the reference, and are used for coating a protective layer on the surface of the circuit board; characterized in that and further comprising a feeding assembly (3) arranged in the working groove (4), the feeding assembly (3) mainly comprises a disc (31), a driving motor (32), a placing mold (33), a gear (34), an arc-shaped rack (35) and a discharging unit (36), the driving motor (32) is fixedly connected in the working groove (4), the output shaft of the driving motor (32) is fixedly connected with the disc (31), a plurality of notches (5) are arranged in an annular array on the outer circumferential side of the disc (31), the placing mold (33) for placing the circuit board is connected in the notch (5) through the discharging unit (36), the shaft sleeve (6) is fixedly connected to the side of the placing mold (33) close to the driving motor (32), the gear (34) is fixedly connected to the side of the shaft sleeve (6) away from the placing mold (33), and the arc-shaped rack (35) engaged with the gear (34) is connected to the position of the working groove (4) close to the middle of the two coating units (2).

2. The circuit board surface coating machine for producing a circuit board according to claim 1, characterized by The number of teeth of the arc-shaped rack (35) is half of the number of teeth of the gear (34), and a ring-shaped groove (7) for accommodating the arc-shaped rack (35) is formed in the bottom of the disc (31).

3. The circuit board surface coating machine for producing a circuit board according to claim 2, characterized by An opening (8) is formed in the side of the placing mold (33) away from the driving motor (32), and a placing groove (9) is formed in the side wall of the opening (8).

4. The circuit board surface coating machine for producing a circuit board according to claim 3, characterized by The discharging unit (36) comprises a push rod motor (361) and a push plate (362), the push rod motor (361) is installed in the disc (31), the push plate (362) is arranged in the opening (8), and the output shaft of the push rod motor (361) penetrates through the shaft sleeve (6) and is rotationally connected with the push plate (362).

5. The circuit board surface coating machine for producing a circuit board according to claim 4, characterized by A square groove (10) in communication with the working groove (4) is formed in the side of the top of the base (1) away from the coating unit (2), and the bottom wall of the square groove (10) is flush with the bottom wall of the placing groove (9).

6. The circuit board surface coating machine for producing a circuit board according to claim 5, wherein The outer wall of the base (1) is fixedly connected with a discharging hopper (11) at the position close to one of the square grooves (10), and the outer wall of the base (1) is connected with a storage frame (12) at the position close to the other square groove (10).

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