Surface coating machine for circuit board production

Abstract

The utility model belongs to the technical field of circuit boards, and particularly relates to a surface coating machine for circuit board production. A clamping assembly is arranged in the middle of the coating assembly, the coating assembly comprises an integral frame, and a limiting rod is fixedly connected into the integral frame; through the structural design of the clamping assembly, the function of adapting to circuit boards of various sizes and specifications is achieved, coating operation can be conducted on a small intelligent watch circuit board or a large industrial control circuit board on the same coating machine, the application range of the equipment is widened, and the practicability is high. The cost of purchasing a plurality of coating devices for the circuit boards with different sizes by enterprises is reduced, in the production process, if the circuit boards with different sizes need to be switched and produced, a clamp or equipment does not need to be replaced, and only the clamping device needs to be simply adjusted to quickly adapt to a new circuit board size, so that the production preparation time is shortened, and the production efficiency is improved. The production flexibility and the strain capacity are improved, and the production flexibility is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board, concretely is a surface coating machine for circuit board production. BACKGROUND

[0002] In the circuit board production process, surface coating is a crucial process, which directly relates to the performance, life and stability of the circuit board. The traditional circuit board surface coating method often relies on manual operation, and workers hold coating tools to coat the circuit boards one by one. This method not only has low efficiency and cannot meet the needs of modern mass production, but also cannot guarantee the uniformity of manual coating, which may affect the electrical performance of the circuit board.

[0003] According to Chinese patent application No. CN221127583U, a circuit board surface coating machine for circuit board production is provided. The cleaning mechanism and the collection mechanism inside the cleaning box cooperate with each other. The blower of the cleaning mechanism blows air from the nozzle through the cleaning pipeline. Under the cooperation of the connecting piece and the adjusting mechanism, the nozzle swings and blows inside the cleaning box with a certain frequency. The attachments on the circuit board are blown up, and the attachments inside the cleaning box are collected under the action of the air extractor and the collection pipeline of the collection mechanism. The arc-shaped groove on the collection disc guides the blown attachments to the collection pipeline for auxiliary collection, thereby improving the yield of the circuit board. However, the circuit board needs to be flipped after coating one side, which increases the operation steps and time cost. In mass production, the overall production efficiency will be significantly reduced. Only circuit boards of a specific size can be processed. Different fixtures or equipment need to be replaced for circuit boards of different specifications and sizes, which cannot meet the diversified production needs, reduces the versatility and flexibility of the equipment, and increases the investment cost of production equipment. In addition, frequent replacement of fixtures increases the maintenance cost and downtime of the equipment. Therefore, to solve the above problems, a surface coating machine for circuit board production is proposed. UTILITY MODEL CONTENTS

[0004] To overcome the shortcomings of the prior art, the circuit board needs to be flipped for coating on both sides. The utility model provides a surface coating machine for circuit board production.

[0005] The technical solution adopted by the utility model to solve the technical problems is: a surface coating machine for circuit board production, comprising a coating assembly; a clamping assembly is arranged in the middle of the coating assembly;

[0006] The coating assembly comprises a whole frame, a limiting rod is fixedly connected to the inside of the whole frame, a servo motor is fixedly connected to the upper end of the whole frame, a bidirectional screw rod is fixedly connected to the output end of the servo motor, a pair of upper and lower symmetrical screw sleeves are fixedly connected to the middle part of the bidirectional screw rod, a lifting plate is fixedly connected to the middle part of each of the pair of screw sleeves, the middle part of each of a pair of lifting plates is in sliding connection with the middle part of the limiting rod, and a spraying gun and its electronic components are fixedly connected to the middle part of each of a pair of limiting rods.

[0007] As preferred, the clamping assembly comprises a pair of supporting frames fixedly connected to the rear end of the whole frame, an installation frame is fixedly connected to the upper end of each of the pair of supporting frames, a pair of mutually symmetrical sliding blocks are slidingly connected to the inside of the installation frame, a telescopic rod is fixedly connected to the front end of the installation frame, and a driving block is fixedly connected to the output end of the telescopic rod and located inside the installation frame.

[0008] As preferred, the middle part of each of the pair of sliding blocks is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a clamping plate, the middle part of the clamping plate is fixedly connected with a pair of mutually symmetrical sliding sleeves, a buffer spring is fixedly connected to the inside of each of the pair of sliding sleeves, a connecting block is slidingly connected to the inside of each of the pair of sliding sleeves, and one end of each of the pair of connecting blocks is fixedly connected with a contact plate.

[0009] As preferred, the whole shape of each of the pair of sliding blocks is triangular, and a T-shaped sliding groove is formed at the end of each of the pair of sliding blocks which is close to each other.

[0010] As preferred, the upper and lower ends of each of the pair of sliding blocks are fixedly connected with a strip-shaped sliding limiting block, and a strip-shaped sliding limiting groove is formed in the inside of the installation frame and is matched with the sliding connection of the strip-shaped sliding limiting block.

[0011] As preferred, the two ends of the driving block are beveled, a T-shaped protruding block is fixedly connected to each of the two ends of the driving block, and each of the pair of T-shaped protruding blocks is in sliding connection with the middle part of each of the pair of sliding blocks.

[0012] As preferred, a cross-shaped groove is formed in the inside of the sliding sleeve.

[0013] As preferred, a cross-shaped protruding block is fixedly connected to the middle part of the connecting block and is matched with the sliding limiting of the cross-shaped groove.

[0014] The utility model discloses the advantages are as follows:

[0015] 1. The utility model discloses a structure design of coating assembly, realized the function of improving production efficiency and reducing coating waste, solved the mode of the other side coating after the single side coating and turn over, two sides coating can greatly reduce the total time of coating operation, when the large -scale production circuit board, can significantly improve the overall production speed, increase the output in unit time, coating two sides can ensure that the circuit board two sides coating process parameters such as coating thickness, uniformity etc. are more consistent, avoid the problem of coating drying speed difference, thickness difference etc. that may be produced because of coating in advance and after, thereby improve the overall quality and performance stability problem of circuit board, improve production efficiency;

[0016] 2. The utility model discloses a structure design of clamping assembly, realized the function of adapting to the circuit board of various size specifications, solved no matter small -size smart watch circuit board or large -size industrial control circuit board, can carry out coating operation on the same coating machine, improved the application range of equipment, reduced the cost that enterprise purchases multiple coating equipment for different size circuit board, if needing to switch production different size circuit board in the production process, need not to replace the fixture or equipment, only need to carry out simple adjustment to the clamping device, can quickly adapt to new circuit board size, shortened the production preparation time, cooperate the setting of buffer spring simultaneously, and circuit board is usually fragile, especially some precision circuit board, its surface can have various electronic components, circuit etc. If there is no buffer in the clamping process, clamping force can cause rigid extrusion to circuit board, lead to the element damage of circuit board surface, circuit breakage or the crack of circuit board itself etc. problem, improved the flexibility and strain capacity of production problem, improved production flexibility. ACCURACY OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, below description in the drawing only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0018] Figure 1 It is the overall structure schematic diagram of the utility model;

[0019] Figure 2 It is the overall split structure schematic diagram of the utility model;

[0020] Figure 3 It is the coating assembly front view structure schematic diagram of the utility model;

[0021] Figure 4 It is the clamping assembly split structure schematic diagram of the utility model;

[0022] Figure 5 It is the connection structure schematic view of the connecting rod and the clamping plate of the utility model;

[0023] Figure 6 It is the connection structure schematic view of the mounting frame and the sliding block of the utility model;

[0024] Figure 7 It is the whole structure schematic view of the driving block of the utility model.

[0025] In the drawing, 1 is a coating assembly, 2 is a clamping assembly, 101 is an overall frame, 102 is a limiting rod, 103 is a servo motor, 104 is a bidirectional screw rod, 105 is a screw sleeve, 106 is a lifting plate, 107 is a spraying gun and its electronic components, 201 is a support frame, 202 is a mounting frame, 203 is a sliding block, 204 is a telescopic rod, 205 is a driving block, 206 is a connecting rod, 207 is a clamping plate, 208 is a sliding sleeve, 209 is a buffer spring, 210 is a connecting block, and 211 is a contact plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] The following will be combined with the drawings in the embodiments of the utility model Figures 1-7 The application will be further described in detail,

[0028] The embodiments of the application disclose a surface coating machine for circuit board production. Referring to Figure 1 and Figure 7 A surface coating machine for circuit board production, comprising a coating assembly 1; the middle part of the coating assembly 1 is provided with a clamping assembly 2;

[0029] The coating assembly 1 comprises an overall frame 101, the inside of the overall frame 101 is fixedly connected with a limiting rod 102, the upper end of the overall frame 101 is fixedly connected with a servo motor 103, the output end of the servo motor 103 is fixedly connected with a bidirectional screw rod 104, the middle part of the bidirectional screw rod 104 is fixedly connected with a pair of upper and lower symmetrical screw sleeves 105, the middle part of the pair of screw sleeves 105 is fixedly connected with a lifting plate 106, the middle part of the pair of lifting plates 106 is slidably connected with the middle part of the limiting rod 102, and the middle part of the pair of limiting rods 102 is fixedly connected with a spraying gun and its electronic components 107;

[0030] The scheme achieves the effect that the distance between the coating and the circuit board can be flexibly adjusted according to the thickness of the circuit board and the coating process requirement, ensures that the coating can be covered on the circuit board in the best state, optimizes the coating effect, avoids material waste, and is suitable for diversified coating processes; and the upper and lower symmetrical spraying guns and electronic components 107 achieve the effect that both sides of the circuit board can be coated at the same time, greatly improves the production efficiency, ensures the consistency of the coating quality of both sides, and reduces problems such as drying speed and thickness difference of the coating caused by coating in sequence.

[0031] With reference to Figure 4 And Figure 7 The clamping assembly 2 comprises a pair of supporting frames 201 fixedly connected at the rear end of the overall frame 101, an installation frame 202 fixedly connected at the upper end of the pair of supporting frames 201, a pair of mutually symmetrical sliding blocks 203 slidably connected in the installation frame 202, an extension rod 204 fixedly connected at the front end of the installation frame 202, and a drive block 205 fixedly connected at the output end of the extension rod 204 and located in the installation frame 202.

[0032] With reference to Figure 4 And Figure 7 The middle part of each of the pair of sliding blocks 203 is fixedly connected with a connecting rod 206, one end of the connecting rod 206 is fixedly connected with a clamping plate 207, the middle part of the clamping plate 207 is fixedly connected with a pair of mutually symmetrical sliding sleeves 208, the inside of each of the pair of sliding sleeves 208 is fixedly connected with a buffer spring 209, the inside of each of the pair of sliding sleeves 208 is slidably connected with a connecting block 210, and one end of each of the pair of connecting blocks 210 is fixedly connected with a contact plate 211.

[0033] With reference to Figure 4 And Figure 7 The overall shape of each of the pair of sliding blocks 203 is triangular, and each of the pair of sliding blocks 203 is provided with a T-shaped sliding groove at the end close to each other.

[0034] With reference to Figure 4 And Figure 7 The upper and lower ends of each of the pair of sliding blocks 203 are fixedly connected with a strip-shaped sliding limiting block, and the inside of the installation frame 202 is provided with a strip-shaped sliding limiting groove for slidably connecting the strip-shaped sliding limiting block.

[0035] With reference to Figure 4 And Figure 7 The two ends of the drive block 205 are beveled, the two ends of the drive block 205 are fixedly connected with a pair of T-shaped protrusions, and the pair of T-shaped protrusions are slidably connected with the middle part of the pair of sliding blocks 203, respectively.

[0036] With reference to Figure 4 And Figure 7 The inner part of the sliding sleeve 208 is provided with a cross recess.

[0037] With reference to Figure 4 And Figure 7 Figure 4 Figure 7 The middle part of the connecting block 210 is fixedly connected with a cross convex block for sliding limiting the cross recess;

[0038] The scheme sets the clamping assembly 2, uses the telescopic rod 204 to push the driving block 205, and cooperates the two end inclined surfaces of the driving block 205 with the T-shaped sliding groove and the T-shaped convex block on the sliding block 203, so that a pair of sliding blocks 203 slide in the installation frame 202 along the strip-shaped sliding limiting groove in opposite directions, the connecting rod 206 drives the clamping plate 207 to move, the effect of clamping and fixing circuit boards of different sizes is achieved, the versatility and production flexibility of the equipment are improved, the cost and time loss caused by replacing the clamp are reduced; at the same time, the sliding sleeve 208 in the middle part of the clamping plate 207 is provided with the buffer spring 209, the connecting block 210 cooperates with the cross recess for sliding limiting, when the contact plate 211 contacts the circuit board, the buffer spring 209 can absorb the clamping force, the effect of buffering when clamping is achieved, the circuit board is effectively protected from hard extrusion damage, the surface elements of the circuit board are guaranteed to be intact, the coating quality is improved, and the service life of the equipment is prolonged.

[0039] Working principle: when the circuit board needs to be coated, first start the telescopic rod 204 in the clamping assembly 2, the telescopic rod 204 is elongated to push the driving block 205 to move forward, since the two ends of the driving block 205 are inclined, and the T-shaped blocks at the two ends are respectively connected with the T-shaped sliding grooves in the middle of the sliding block 203, with the forward movement of the driving block 205, the inclined surface will extrude the sliding block 203, forcing the sliding block 203 to slide in the installation frame 202 along the strip-shaped sliding limiting groove, which is ensured by the cooperation between the strip-shaped sliding limiting groove in the installation frame 202 and the strip-shaped sliding limiting block fixedly connected to the upper and lower ends of the sliding block 203, so that the sliding block 203 can move smoothly in the predetermined direction, the sliding block 203 drives the clamping plate 207 to move synchronously through the connecting rod 206, the contact plate 211 in the middle of the clamping plate 207 gradually approaches the circuit board, when the contact plate 211 contacts the circuit board, with the increase of the clamping force, the connecting block 210 will slide in the sliding sleeve 208, at this time, the buffer spring 209 plays a role, the buffer spring 209 is compressed, absorbs and buffers the clamping force, avoids hard extrusion damage to the circuit board, so as to stably clamp the circuit board, and since the structure design of the clamping assembly 2, it can adapt to circuit boards of different sizes, without replacing the clamp, at the same time, the coating assembly 1 starts to work, the servo motor 103 at the upper end of the overall frame 101 starts to work, drives the bidirectional screw rod 104 to rotate, the screw sleeve 105 fixedly connected to the bidirectional screw rod 104 in the middle is driven to rotate, under the guidance of the limiting rod 102, drives the lifting plate 106 to move up and down, and then adjusts the height position of the spraying gun and the electronic components 107, so that the spraying gun and the electronic components 107 reach the appropriate coating distance with the clamped circuit board, to ensure the coating effect, and through the design of the coating assembly 1, the upper and lower groups of spraying guns and electronic components 107 can be used to coat both sides of the circuit board at the same time, which greatly improves the production efficiency, avoids the time waste and inconsistent quality problems caused by the traditional single-sided coating and then the double-sided coating, in the coating process, the spraying gun uniformly sprays the coating on the surface of the circuit board, completes the surface coating process of the circuit board.

[0040] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A surface coater for production of a circuit board, characterized by: It includes a coating assembly (1); the middle of the coating assembly (1) is provided with a clamping assembly (2); The coating assembly (1) includes a whole frame (101), the inside of the whole frame (101) is fixedly connected with a limiting rod (102), the upper end of the whole frame (101) is fixedly connected with a servo motor (103), the output end of the servo motor (103) is fixedly connected with a bidirectional screw rod (104), the middle of the bidirectional screw rod (104) is fixedly connected with a pair of upper and lower symmetrical screw sleeves (105), the middle of the pair of screw sleeves (105) is fixedly connected with a lifting plate (106), the middle of the pair of lifting plates (106) is slidably connected with the middle of the limiting rod (102), and the middle of the pair of limiting rods (102) is fixedly connected with a spraying gun and its electronic components (107).

2. The surface coater for producing a circuit board according to claim 1, characterized in that: The clamping assembly (2) includes a pair of support frames (201) fixedly connected to the rear end of the whole frame (101), the upper end of the pair of support frames (201) is fixedly connected with a mounting frame (202), the inside of the mounting frame (202) is slidably connected with a pair of mutually symmetrical sliding blocks (203), the front end of the mounting frame (202) is fixedly connected with a telescopic rod (204), and the output end of the telescopic rod (204) and located inside the mounting frame (202) is fixedly connected with a driving block (205).

3. The surface coater for producing a circuit board according to claim 2, characterized in that: The middle of the pair of sliding blocks (203) is fixedly connected with a connecting rod (206), one end of the connecting rod (206) is fixedly connected with a clamping plate (207), the middle of the clamping plate (207) is fixedly connected with a pair of mutually symmetrical sliding sleeves (208), the inside of the pair of sliding sleeves (208) is fixedly connected with a buffer spring (209), the inside of the pair of sliding sleeves (208) is slidably connected with a connecting block (210), and one end of the pair of connecting blocks (210) is fixedly connected with a contact plate (211).

4. The surface coater for producing a circuit board according to claim 3, characterized in that: The overall shape of the pair of sliding blocks (203) is triangular, and the pair of sliding blocks (203) are provided with T-shaped sliding grooves at the ends close to each other.

5. The surface coater for producing a circuit board according to claim 2, characterized in that: The upper and lower ends of the pair of sliding blocks (203) are fixedly connected with strip-shaped sliding limit blocks, and the inside of the mounting frame (202) is provided with strip-shaped sliding limiting grooves matched with the strip-shaped sliding limit blocks.

6. The surface coater for producing a circuit board according to claim 2, characterized in that: The two ends of the driving block (205) are inclined, the two ends of the driving block (205) are fixedly connected with T-shaped protrusions, and the middle of the pair of sliding blocks (203) is slidably connected with the pair of T-shaped protrusions.

7. The surface coater for producing a circuit board according to claim 3, wherein: The inside of the sliding sleeve (208) is provided with a cross recess.

8. The surface coater for producing a circuit board according to claim 3, characterized in that: The middle of the connecting block (210) is fixedly connected with a cross protrusion matched with the sliding limiting of the cross recess.

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