Circuit board surface coating device
By using a combined design of conveying tracks and springs in the circuit board surface coating device, the problem of offset and material leakage during the coating process is solved, and the stable clamping and uniform coating of the circuit board is achieved, which improves the Coating efficiency and effect.
Patent Information
- Application Number
- CN202420922393.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing circuit board surface coating devices are prone to deviation of the circuit board during the scratching process, difficult to ensure processing stability, and difficult to control the outlet material discharge, and easy to accumulate or leak material, affecting the coating efficiency and effect.
A device including conveying tracks, support plates, sliding side plates, adjustment clamps and springs is designed. By conveying tracks, the support plates and sliding side plates are driven to move, and the stable clamping and automatic placement of the circuit board is achieved by using the compression and extension of the spring. , and uniform coating and air-drying of flux are achieved by combining the guide frame and the spring to avoid material leakage.
The stable processing and uniform coating of the circuit board are achieved, the circuit board offset and material leakage are avoided, and the coating efficiency and effect are improved.
Smart Images
Figure CN222192697U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a circuit board surface coating device, belonging to the technical field of circuit board processing. Background Art
[0002] Circuit board, also known as printed circuit board, is an important electronic device used to connect and support electronic components to achieve electrical connection and signal transmission. It is usually composed of insulating substrates, such as glass fiber and epoxy resin, with conductive lines such as copper foil printed or etched on it. These lines are formed by a specific process and are used to connect and conduct electronic signals. They can be divided into single-sided boards, double-sided boards, multi-layer boards, etc. according to the number of wiring layers. Multi-layer boards can contain multiple metal layers, plastic layers, insulation layers and control layers. Each layer is connected by drilling and plating conductors to ensure the normal operation of the circuit.
[0003] The existing patent number is CN213586471 U, which is a circuit board surface coating device. This device cooperates with the controller, metering pump and electromagnetic valve in the liquid outlet pipe to achieve artificial quantitative control of the spray amount of soldering flux according to the actual production situation to ensure the coating effect. The brush holder is convenient for timely replacement of the brush head after a long period of production to ensure the coating effect. The blades installed on the motor output shaft are used to air-dry the combustion agent on the surface of the circuit board to improve the coating efficiency. However, when this device is coating the surface of the circuit board, the circuit board is easily offset as the brush head scrapes the circuit board, making it difficult to ensure the processing stability of the circuit board, thereby making it difficult to process to an ideal effect. Although this device can quantitatively discharge materials during use, it is difficult to control the outlet, which is likely to cause material accumulation or leakage, and the excess soldering flux is easily solidified on the surface of the conveying device as the brush head scrapes, affecting the continuous use of the device. Utility Model Content
[0004] The purpose of the utility model is to provide a circuit board surface coating device to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A circuit board surface coating device comprises a support frame, a top frame and a material storage box, the front and rear ends of the inner side of the support frame are rotatably connected to a conveying crawler, the inner side of the conveying crawler is provided with a support plate, the front and rear sides of the support plate are slidably connected to sliding side plates, the upper side of the inner end surface of the sliding side plate is slidably connected to an adjusting clamping plate, the upper end of the support frame is fixedly connected to the top frame, the inner left upper end of the top frame is sealed with a guide frame, the lower end of the guide frame is sealed with a lifting frame, and the lower end of the lifting frame is sealed with a discharge coating head.
[0007] Furthermore, the front and rear ends of the inner side walls of the support frame are fixedly connected with fixed top pressure plates, the inner side of the fixed top pressure plate is rollingly connected with a pressure roller, and the pressure roller is rotationally connected to the sliding side plate.
[0008] Furthermore, a fixing rod is fixedly connected to the inner side of the support plate, a first spring is covered on the surface of the fixing rod, and the fixing rod is slidably connected to the sliding side plate.
[0009] Furthermore, the inner side of the sliding side plate is slidably connected to a sliding frame, the inner side of the sliding frame is rotatably connected to an adjusting screw, the adjusting screw and the sliding side plate are spirally connected, the adjusting screw and the adjusting clamping plate are rotatably connected, the sliding frame and the adjusting clamping plate are fixedly connected, and the outer end of the adjusting screw is fixedly connected to a turntable.
[0010] Furthermore, the inner end surface of the conveying crawler is fixedly connected with a limit plug block, and the limit plug block is slidably connected to the support plate.
[0011] Furthermore, a fan is fixedly connected to the right side of the upper end of the top frame, and a drying nozzle is sealed at the lower end of the fan.
[0012] Furthermore, the upper end of the guide frame is sealed and connected to a material storage box, the material storage box is fixedly connected to the top frame, the inner upper end of the guide frame is fixedly connected to a connecting rod, the lower end of the connecting rod is fixedly connected to a blocking block, and the blocking block is slidably connected to the lifting frame.
[0013] Furthermore, the front and rear ends of the lifting frame are fixedly connected to sliding rods, the sliding rods are slidably connected to the guide frame, the surface of the sliding rods is covered with a second spring, and the front and rear sides of the lower end of the lifting frame are rotatably connected to support rollers.
[0014] The beneficial effects of the utility model are:
[0015] The utility model can drive the support plate to move by the rotation of the transmission crawler, thereby driving the sliding side plate and the adjusting clamping plate to move, and when the pressure roller contacts the fixed top pressure plate, the sliding side plate can drive the adjusting clamping plate to move inwardly and compress the provided first spring, so that the adjusting clamping plate can clamp the circuit board to ensure the stability of circuit board processing, and the adjusting screw can be rotated by rotating the turntable, and the position of the adjusting clamping plate can be adjusted under the limiting action of the sliding frame, so as to clamp and fix circuit boards of different sizes, and when the circuit board is coated and moves to the right end, the pressure roller can be disconnected from the fixed top pressure plate, so that the provided first spring can be stretched, so that the circuit board is lost. The clamping force is removed, thereby facilitating the retraction and automatic clamping of the circuit board. The utility model utilizes a guide frame to guide the flux, and after the circuit board moves to the lower end of the discharge coating head, the sliding side plate can press the pressure roller to enable the sliding rod and the lifting frame to move upward, and compress the set second spring, and at the same time enable the blocking block to be removed from the top of the lifting frame, so that the flux can flow downward, and the circuit board can be evenly coated with flux through the discharge coating head, and the second spring can be extended after the circuit board is moved out, so that the blocking block can timely block the outlet, and at the same time, the flux coated on the surface of the circuit board can be quickly air-dried through the action of the fan and the air-drying nozzle to avoid material scattering and leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 This is a front view of a circuit board surface coating device of the utility model;
[0018] Figure 2 It is a right sectional view of the installation structure of a support plate, a sliding side plate and an adjusting clamping plate of a circuit board surface coating device of the utility model;
[0019] Figure 3 It is a top view of the installation structure of a fixed top pressure plate of a circuit board surface coating device of the utility model;
[0020] Figure 4 This is a cross-sectional view of the installation structure of a top frame, a fan and a material storage box of a circuit board surface coating device of the utility model;
[0021] Figure 5It is a right sectional view of the installation structure of the guide frame and the lifting frame of a circuit board surface coating device of the utility model;
[0022] Numbers in the figure: 1. Support frame; 2. Conveyor track; 3. Support plate; 4. Sliding side plate; 5. Adjusting splint; 6. Top frame; 7. Guide frame; 8. Lifting frame; 9. Discharging coating head; 10. Fixed top pressure plate; 11. Pressure roller; 12. Fixed rod; 13. First spring; 14. Sliding frame; 15. Adjusting screw; 16. Turntable; 17. Limiting plug; 18. Fan; 19. Air-drying nozzle; 20. Storage box; 21. Connecting rod; 22. Blocking block; 23. Sliding rod; 24. Second spring; 25. Support roller. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Example 1 Please refer to Figure 1-Figure 5 , the utility model provides a technical solution:
[0025] A circuit board surface coating device comprises a support frame 1, a top frame 6 and a material storage box 20, the front and rear ends of the inner side of the support frame 1 are rotatably connected to a conveying crawler 2, the inner side of the conveying crawler 2 is provided with a support plate 3, the front and rear sides of the support plate 3 are slidably connected to a sliding side plate 4, the upper side of the inner end surface of the sliding side plate 4 is slidably connected to an adjusting clamping plate 5, the front and rear ends of the inner side wall of the support frame 1 are fixedly connected to a fixed top pressure plate 10, the inner side of the fixed top pressure plate 10 is rollingly connected to a pressure roller 11, and the pressure roller 11 and the sliding side plate 4 are rotatably connected to each other. The support plate 3 is rotatably connected thereto, a fixing rod 12 is fixedly connected to the inner side of the support plate 3, a first spring 13 is covered on the surface of the fixing rod 12, the fixing rod 12 is slidably connected to the sliding side plate 4, a sliding frame 14 is slidably connected to the inner side of the sliding side plate 4, an adjusting screw 15 is rotatably connected to the inner side of the sliding frame 14, the adjusting screw 15 is spirally connected to the sliding side plate 4, the adjusting screw 15 is rotatably connected to the adjusting clamping plate 5, the sliding frame 14 is fixedly connected to the adjusting clamping plate 5, and the outer end of the adjusting screw 15 is fixed The rotating disk 16 is connected, and the inner end surface of the conveying crawler 2 is fixedly connected with a limiting plug block 17, and the limiting plug block 17 is slidably connected with the supporting plate 3. The rotating action of the conveying crawler 2 can drive the supporting plate 3 to move, thereby driving the sliding side plate 4 and the adjusting clamping plate 5 to move, and when the pressure roller 11 contacts the fixed top pressure plate 10, the sliding side plate 4 can drive the adjusting clamping plate 5 to move inward, and compress the set first spring 13, so that the adjusting clamping plate 5 can clamp the circuit board to ensure the processing stability of the circuit board, and the adjusting screw 15 can be rotated by rotating the rotating disk 16, and the position of the adjusting clamping plate 5 can be adjusted under the limiting action of the sliding frame 14, so as to clamp and fix circuit boards of different sizes, and when the circuit board is coated and moves to the right end, the pressure roller 11 can be disconnected from the fixed top pressure plate 10, so that the set first spring 13 is stretched, and the circuit board loses the clamping force, thereby facilitating the collection and release and automatic clamping of the circuit board.
[0026] Example 2 Please refer to Figure 1 , Figure 4 and Figure 5The difference between this embodiment and embodiment 1 is that: the upper end of the support frame 1 is fixedly connected with a top frame 6, the inner upper left end of the top frame 6 is sealed with a guide frame 7, the lower end of the guide frame 7 is sealed with a lifting frame 8, and the lower end of the lifting frame 8 is sealed with a discharging smearing head 9, the upper right side of the top frame 6 is fixedly connected with a fan 18, and the lower end of the fan 18 is sealed with an air-drying nozzle 19, the upper end of the guide frame 7 is sealed with a storage box 20, and the storage box 20 is fixedly connected to the top frame 6, the inner upper end of the guide frame 7 is fixedly connected with a connecting rod 21, and the lower end of the connecting rod 21 is fixedly connected with a blocking block 22, and the blocking block 22 is slidably connected to the lifting frame 8, and the front and rear ends of the lifting frame 8 are fixedly connected with sliding rods 23, and the sliding rods 23 are slidably connected to the guide frame 7, and the surface of the sliding rods 23 is covered with the first The second spring 24 and the front and rear sides of the lower end of the lifting frame 8 are rotatably connected to the support rollers 25. The guide frame 7 can be used to guide the flux, and after the circuit board moves to the lower end of the discharge coating head 9, the sliding side plate 4 can press the pressure roller 11 to enable the sliding rod 23 and the lifting frame 8 to move upward, and compress the set second spring 24, and at the same time, the blocking block 22 can be removed from the top of the lifting frame 8, so that the flux can flow downward, and the circuit board can be evenly coated with the flux through the discharge coating head 9, and the second spring 24 can be stretched after the circuit board is moved out, so that the blocking block 22 can timely block the outlet, and at the same time, the flux coated on the surface of the circuit board can be quickly dried by the action of the fan 18 and the air-drying nozzle 19 to avoid the phenomenon of material scattering and leakage.
[0027] Working principle of the utility model: when the device is in use, the rotation of the conveyor crawler 2 can drive the support plate 3 to move, thereby driving the sliding side plate 4 and the adjusting clamping plate 5 to move, and when the pressure roller 11 contacts the fixed top pressure plate 10, the sliding side plate 4 can drive the adjusting clamping plate 5 to move inward, and compress the set first spring 13, so that the adjusting clamping plate 5 can clamp the circuit board to ensure the stability of circuit board processing, and the adjusting screw 15 can be rotated by rotating the turntable 16, and the adjusting clamping plate 5 can be adjusted in position under the limiting action of the sliding frame 14, so as to clamp and fix circuit boards of different sizes, and when the circuit board is coated and moves to the right end, the pressure roller 11 can be disconnected from the fixed top pressure plate 10, so that the set first spring The spring 13 stretches, causing the circuit board to lose its clamping force, thereby facilitating the retraction and automatic clamping of the circuit board. The guide frame 7 can be used to guide the flux, and after the circuit board moves to the lower end of the discharge coating head 9, the sliding side plate 4 can press the pressure roller 11 to enable the sliding rod 23 and the lifting frame 8 to move upward, and compress the set second spring 24, and at the same time, the blocking block 22 can be removed from the top of the lifting frame 8, so that the flux can flow downward, and the circuit board can be evenly coated with flux through the discharge coating head 9, and the second spring 24 can be stretched after the circuit board is moved out, so that the blocking block 22 can timely block the outlet, and at the same time, the flux coated on the surface of the circuit board can be quickly dried by the action of the fan 18 and the air-drying nozzle 19 to avoid material spillage and leakage.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A circuit board surface coating device, comprising a support frame (1), a top frame (6) and a material storage box (20), characterized in that: The front and rear ends of the inner side of the support frame (1) are rotatably connected to a conveying crawler (2); a support plate (3) is provided on the inner side of the conveying crawler (2); the front and rear sides of the support plate (3) are slidably connected to a sliding side plate (4); the upper side of the inner end surface of the sliding side plate (4) is slidably connected to an adjusting clamping plate (5); the upper end of the support frame (1) is fixedly connected to a top frame (6); the inner left upper end of the top frame (6) is sealed to a guide frame (7); the lower end of the guide frame (7) is sealed to a lifting frame (8); the lower end of the lifting frame (8) is sealed to a discharge smearing head (9).
2. A circuit board surface coating device according to claim 1, characterized in that: The front and rear ends of the inner side walls of the support frame (1) are fixedly connected to a fixed top pressure plate (10), the inner side of the fixed top pressure plate (10) is rollingly connected to a pressure roller (11), and the pressure roller (11) is rotationally connected to the sliding side plate (4).
3. A circuit board surface coating device according to claim 1, characterized in that: A fixing rod (12) is fixedly connected to the inner side of the support plate (3), a first spring (13) is coated on the surface of the fixing rod (12), and the fixing rod (12) is slidably connected to the sliding side plate (4).
4. A circuit board surface coating device according to claim 1, characterized in that: The inner side of the sliding side plate (4) is slidably connected to a sliding frame (14), the inner side of the sliding frame (14) is rotatably connected to an adjusting screw (15), the adjusting screw (15) is spirally connected to the sliding side plate (4), the adjusting screw (15) is rotatably connected to the adjusting clamping plate (5), the sliding frame (14) and the adjusting clamping plate (5) are fixedly connected, and the outer end of the adjusting screw (15) is fixedly connected to a rotating disk (16).
5. A circuit board surface coating device according to claim 1, characterized in that: The inner end surface of the conveying crawler (2) is fixedly connected to a limit plug block (17), and the limit plug block (17) is slidably connected to the support plate (3).
6. A circuit board surface coating device according to claim 1, characterized in that: A fan (18) is fixedly connected to the right side of the upper end of the top frame (6), and a drying nozzle (19) is sealed at the lower end of the fan (18).
7. A circuit board surface coating device according to claim 1, characterized in that: The upper end of the guide frame (7) is sealedly connected to a material storage box (20), the material storage box (20) is fixedly connected to the top frame (6), the inner upper end of the guide frame (7) is fixedly connected to a connecting rod (21), the lower end of the connecting rod (21) is fixedly connected to a blocking block (22), and the blocking block (22) is slidably connected to the lifting frame (8).
8. A circuit board surface coating device according to claim 1, characterized in that: The front and rear ends of the lifting frame (8) are fixedly connected to sliding rods (23), the sliding rods (23) are slidably connected to the guide frame (7), the surface of the sliding rods (23) is covered with a second spring (24), and the front and rear sides of the lower end of the lifting frame (8) are rotatably connected to support rollers (25).