Circuit board three-proofing coating glue spraying equipment capable of preventing glue from overflowing

Abstract

The utility model discloses a circuit board three-proofing coating glue spraying device capable of preventing glue from overflowing, which relates to the technical field of circuit board spraying and comprises a placing seat. A protective cover is arranged at the front end of the containing base, a spraying device is arranged at the upper end of the protective cover, a driving motor is arranged at the rear end of the containing base, a spiral transmission rod is arranged at the output end of the driving motor, a transmission block is spirally installed on the surface of the spiral transmission rod, and a guide rail is arranged on the surface of the containing base. According to the circuit board three-proofing coating glue spraying equipment capable of preventing glue from overflowing, compared with an existing spraying device for three-proofing coating of a common circuit board, through arrangement of a spiral transmission rod, the three-proofing coating glue can be sprayed on the circuit board through the spiral transmission rod, so that the three-proofing coating glue can be prevented from overflowing; and the circuit board placed on the placing plate can be driven to accurately move to the position under the spraying device for a gluing process, so that the processing stability of the circuit board is ensured, and the yield of the circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board spraying, in particular to a three-proof coating glue spraying device for a circuit board to prevent glue overflow. Background Technique

[0002] The three-proof paint is a special formula paint used to protect the circuit board and its related equipment from environmental erosion, thereby improving and extending their service life and ensuring the safety and reliability of use. The production of circuit boards necessarily requires the use of a spraying device to spray the three-proof paint on the surface of the circuit board.

[0003] For example, the patent document with the application number 202222628619.X discloses a spraying device for three-proof coating of circuit boards. This utility model discloses a spraying device for three-proof coating of circuit boards, which relates to the technical field of circuit board spraying. To solve the problems in the prior art that in the general spraying device for three-proof coating of circuit boards, spraying is first carried out and then drying is carried out, the drying efficiency of the paint is low, and the pressure during spraying is small, which is likely to cause the paint to accumulate on the surface of the circuit board. Above the conveying device, a spraying device is installed, and the spraying device and the conveying device are fixedly connected by fastening screws. Above the spraying device, a pressurizing and heating box is installed, and the pressurizing and heating box and the spraying device are fixedly connected by fastening screws. Inside the spraying device, a two-in-one nozzle is arranged. On one side of the pressurizing and heating box, an air collecting hood is installed, and the air collecting hood and the pressurizing and heating box are fixedly connected by bolts. An air conveying hose is installed between the air collecting hood and the two-in-one nozzle. Both the air collecting hood and the two-in-one nozzle are fixedly connected to the air conveying hose through flanges. Legs are installed below the conveying device. However, for this spraying device for three-proof coating of circuit boards, during spraying, the conveying device is used to convey and spray the circuit board, but during the conveying process, the positions of the circuit board and the spraying device cannot be accurately determined, affecting the positioning spraying of the spraying equipment.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a three-proof coating glue spraying device for a circuit board to prevent glue overflow is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a three-proof coating glue spraying device for a circuit board to prevent glue overflow, so as to solve the problems put forward in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A three-proof coating glue spraying device for circuit boards to prevent glue overflow, including a placement seat, a protective cover is provided at the front end of the placement seat, and a spraying device is provided at the upper end of the protective cover. A driving motor is provided at the rear end of the placement seat, and a spiral transmission rod is provided at the output end of the driving motor. A transmission block is spirally installed on the surface of the spiral transmission rod. A guide rail is provided on the surface of the placement seat, and a sliding block is slidably installed on the surface of the guide rail. A placement plate is provided at the upper end of the sliding block.

[0007] Preferably, a plurality of limit sliding rods are provided on both sides of the placement plate, and a limit plate is provided at the front end of the limit sliding rods.

[0008] Preferably, a sliding clamping plate is provided at the upper end of the placement plate, and sliding plates are provided on both sides at the rear end of the sliding clamping plate.

[0009] Preferably, a pulling plate is provided in the middle at the rear end of the sliding clamping plate, and a compression spring is provided at the rear end of the pulling plate.

[0010] Preferably, slots are provided on both side surfaces of the placement plate, and both sides of the placement plate are provided as inclined surfaces.

[0011] Preferably, plug blocks are provided inside the slots, and an overflow collection box is provided at the rear end of the plug blocks.

[0012] Preferably, a pulling block is provided at the front end of the overflow collection box, and the overflow collection box is provided on both side surfaces of the placement plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. Through the settings of the placement seat, protective cover, spraying device, spiral transmission rod, driving motor, transmission block, guide rail, sliding block and placement plate, with the setting of the spiral transmission rod, it can drive the circuit board placed on the placement plate to accurately move to the right below the spraying device for the gluing process, ensuring the stability of circuit board processing, avoiding waste of excess coating, reducing the spraying cost, and improving the yield rate of circuit boards;

[0015] 2. Through the settings of the sliding clamping plate, pulling plate, sliding plate, limit sliding rods, limit plate and compression spring, with the setting of the sliding clamping plate, it can clamp and fix circuit boards of different sizes for positioning, ensuring the stability of the circuit board on the placement plate;

[0016] 3. Through the settings of the slots, overflow collection box, pulling block and plug blocks, with the setting of the overflow collection box, if glue overflows during the gluing process of the spraying device, the excess glue will enter the inside of the overflow collection box for collection, preventing the glue from dripping onto the surface of the placement seat. Description of the Drawings

[0017] Figure 1 This is the overall three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 This is the structure schematic diagram of the screw drive device of the present utility model;

[0019] Figure 3 This is the structure schematic diagram of the circuit board positioning of the present utility model;

[0020] Figure 4 This is the structure schematic diagram of the overflow collection box of the present utility model.

[0021] In the figure: 1. Placing seat; 101. Protective cover; 102. Spraying device; 2. Screw drive rod; 201. Driving motor; 202. Transmission block; 203. Guide rail; 204. Sliding block; 205. Placing plate; 3. Sliding clamping plate; 301. Pulling plate; 302. Sliding plate; 303. Limit slide bar; 304. Limit plate; 305. Compression spring; 4. Slot; 401. Overflow collection box; 402. Pulling block; 403. Inserting block. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figure 1 - Figure 2 shown, a three-proof coating glue spraying device for a circuit board to prevent glue overflow includes a protective cover 101 provided at the front end of a placing seat 1, and a spraying device 102 provided at the upper end of the protective cover 101. This setting for the circuit board spraying device will not be elaborated too much.

[0024] Furthermore, a driving motor 201 is provided at the rear end of the placing seat 1, an output end of the driving motor 201 is provided with a screw drive rod 2, and a transmission block 202 is spirally installed on the surface of the screw drive rod 2. The advantage of this setting is that through the setting of the screw drive rod 2, the circuit board placed on the placing plate 205 can be accurately moved to directly below the spraying device 102 for the gluing process, ensuring the stability of the circuit board processing, avoiding waste of excess coating, reducing the spraying cost, and improving the yield rate of the circuit board.

[0025] Further, a guide rail 203 is provided on the surface of the placement seat 1, and a slider 204 is slidably mounted on the surface of the guide rail 203. A placement plate 205 is provided at the upper end of the slider 204. The advantage of this setting is that, through the setting of the guide rail 203, the placement plate 205 can be limited, ensuring the stability of the placement plate 205.

[0026] As Figure 3 - Figure 4 shown, a plurality of limiting slide rods 303 are provided on both sides of the placement plate 205, and a limiting plate 304 is provided at the front end of the limiting slide rod 303. The advantage of this setting is that, through the setting of the limiting slide rod 303, while driving the sliding clamping plate 3 to displace, it can limit the sliding clamping plate 3.

[0027] Further, a sliding clamping plate 3 is provided at the upper end of the placement plate 205. Sliding plates 302 are provided on both sides at the rear end of the sliding clamping plate 3, and a pulling plate 301 is provided in the middle at the rear end of the sliding clamping plate 3. A compression spring 305 is provided at the rear end of the pulling plate 301. The advantage of this setting is that, through the setting of the sliding clamping plate 3, circuit boards of different sizes can be clamped and fixed and then positioned, ensuring the stability of the circuit board on the placement plate 205. Through the setting of the compression spring 305, the sliding clamping plate 3 can be resisted to reset.

[0028] Further, slots 4 are formed on both side surfaces of the placement plate 205, and both sides of the placement plate 205 are set as inclined surfaces. The advantage of this setting is that by setting both sides of the placement plate 205 as inclined surfaces, it is convenient for the overflowing colloid to flow into the interior of the overflow collection box 401.

[0029] Further, an insertion block 403 is provided inside the slot 4, and an overflow collection box 401 is provided at the rear end of the insertion block 403. A pulling block 402 is provided at the front end of the overflow collection box 401, and the overflow collection box 401 is arranged on both side surfaces of the placement plate 205. The advantage of this setting is that, through the setting of the overflow collection box 401, if overflow occurs during the glue application process of the spraying device, the excess glue will enter the interior of the overflow collection box 401 for collection, preventing the glue from dropping on the surface of the placement seat 1. Through the setting of the insertion block 403, it is convenient to remove and replace.

[0030] Working principle: When using the three-proof coating glue spraying device for circuit boards to prevent glue overflow, first, pull the pull plate 301 to drive the sliding plate 302 at the rear end of the sliding clamping plate 3 to move along the limit slide bar 303. After placing the circuit board on the surface of the placement plate 205, release the pull plate 301. The compressed spring 305 drives the sliding clamping plate 3 to press against the circuit board for fixation through reset. Then, start the drive motor 201 to drive the spiral drive rod 2 to drive the placement plate 205 on the drive block 202 to enter the interior of the protective cover 101 along the guide rail 203. The spraying device 102 sprays the circuit board. If too much glue is sprayed during glue coating, the excess glue will flow out from the circuit board and flow into the overflow collection box 401 through the inclined surface of the placement plate 205 for collection. This is the working principle of the three-proof coating glue spraying device for circuit boards to prevent glue overflow.

Claims

1. A circuit board three-conformal coating glue spraying device to prevent glue overflow, comprising a placement seat (1), characterized in that: The front end of the placement seat (1) is provided with a protective cover (101), and the upper end of the protective cover (101) is provided with a spraying device (102); the rear end of the placement seat (1) is provided with a driving motor (201), and the output end of the driving motor (201) is provided with a spiral transmission rod (2), and the surface of the spiral transmission rod (2) is spirally mounted with a transmission block (202); the surface of the placement seat (1) is provided with a guide rail (203), and the surface of the guide rail (203) is slidably mounted with a sliding block (204), and the upper end of the sliding block (204) is provided with a placement plate (205).

2. The circuit board three-conformal coating glue spraying equipment for preventing glue overflow according to claim 1 is characterized in that: A plurality of limiting sliding rods (303) are arranged on both sides of the placement plate (205), and a limiting plate (304) is arranged at the front end of the limiting sliding rod (303).

3. The circuit board triple-conformal coating glue spraying equipment for preventing glue overflow according to claim 1 is characterized in that: A sliding clamping plate (3) is arranged at the upper end of the placement plate (205), and sliding plates (302) are arranged on both sides of the rear end of the sliding clamping plate (3).

4. The circuit board three-conformal coating glue spraying equipment for preventing glue overflow according to claim 3 is characterized in that: A pull plate (301) is provided at the middle of the rear end of the sliding clamping plate (3), and a compression spring (305) is provided at the rear end of the pull plate (301).

5. The circuit board three-conformal coating glue spraying equipment for preventing glue overflow according to claim 1 is characterized in that: Slots (4) are provided on both side surfaces of the placement plate (205), and both sides of the placement plate (205) are arranged as inclined surfaces.

6. The circuit board three-conformal coating glue spraying equipment for preventing glue overflow according to claim 5 is characterized in that: An insert block (403) is arranged inside the slot (4), and an overflow collection box (401) is arranged at the rear end of the insert block (403).

7. The circuit board three-conformal coating glue spraying equipment for preventing glue overflow according to claim 6 is characterized in that: A pull block (402) is provided at the front end of the overflow collection box (401), and the overflow collection box (401) is arranged on both side surfaces of the placement plate (205).

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