Automatic overturning tool for coating conformal coating

Abstract

The utility model discloses a three-proofing lacquer painting automatic overturning tool which comprises a machine frame, trays, a fixed clamping block, a transmission wheel, a movable clamping block, a positioning disc, a second rotating shaft, a guide rod, a spring, an anti-disengagement stop ring and a linear track, a belt conveying line is arranged on the machine frame, the multiple trays are fixedly installed on two belts of the belt conveying line, and the multiple trays are fixedly installed on the two belts of the belt conveying line. A through hole is formed in the middle of the tray, and the transmission wheel is rotationally installed at the upper end of the tray through a first rotating shaft. According to the tool, a plurality of groups of trays and clamping mechanisms can be arranged on a belt transmission line, the problem that an operator frequently assembles and disassembles a circuit board is avoided, the brushing operation efficiency of the automatic three-proofing paint brushing equipment is improved, the clamping mechanisms and the circuit board are driven by the transmission wheels to synchronously turn over by 180 degrees, and the working efficiency is improved. And three-proofing paint brushing operation can be conveniently carried out on a specific area on the back surface of the circuit board.

Description

Technical Field

[0001] This utility model belongs to the technical field of conformal coating equipment, and in particular relates to an automatic rotating fixture for conformal coating. Background Technology

[0002] Conformal coating has moisture-proof, mildew-proof, and dust-proof properties. When applied to specific areas of the circuit board, it provides anti-slip properties, ensuring the stability of the circuit board during use and extending its service life. Currently, when applying conformal coating to both sides of the circuit board, a single-flip station is used. A drive motor or cam mechanism rotates the circuit board tray fixture 180° to apply the coating to the other side. This flipping method has the disadvantage of having too few simultaneous coating stations, which affects the efficiency of applying conformal coating to both sides of the circuit board. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an automatic flipping fixture that can set multiple circuit board trays to improve the efficiency of double-sided coating of conformal coating on circuit boards.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: an automatic flipping fixture for applying conformal coating, comprising a frame, a tray, a fixed clamping block, a transmission wheel, a movable clamping block, a positioning plate, a second rotating shaft, a guide rod, a spring, an anti-detachment stop ring, and a linear track. A belt conveyor is installed on the frame, and several trays are fixedly mounted on two belts of the belt conveyor. Each tray has a through hole in the center. The transmission wheel is rotatably mounted on the upper end of the tray via a first rotating shaft. The movable clamping block is fixedly mounted on the first rotating shaft, and the second rotating shaft is rotatably mounted on the lower part of the tray. At one end, the positioning plate is fixedly installed on the second rotating shaft. Four guide rods are distributed in a rectangle, with their inner ends fixedly installed on the movable clamping block. The outer ends of the guide rods are slidably installed on the positioning plate. The guide rods are fixedly sleeved with anti-detachment stop rings that act on the outer end face of the positioning plate. The springs are sleeved on the guide rods, and the two ends of the springs act on the movable clamping block and the positioning plate, respectively. The fixed clamping block, movable clamping block, positioning plate, guide rods, springs, and anti-detachment stop rings are all located in the through hole. The linear track is horizontally fixedly installed on the frame, and the transmission wheel is placed on the linear track.

[0005] Furthermore, the fixed clamping block and the movable clamping block are configured as L-shaped structures with the same direction.

[0006] Furthermore, the transmission wheel is covered with an anti-slip rubber sleeve, and an anti-slip rubber strip is fixedly installed on the top surface of the linear track.

[0007] Furthermore, blind hole slots are provided on the movable clamping block and positioning plate, and both ends of the spring are placed in the blind hole slots.

[0008] Compared with the prior art, the advantages of this utility model are: this tooling can be equipped with multiple sets of trays and clamping mechanisms on the belt conveyor line, avoiding the problem of operators frequently assembling and disassembling circuit boards, improving the efficiency of the automatic conformal coating equipment. The transmission wheel drives the clamping mechanism and circuit board to rotate 180° synchronously, which facilitates the conformal coating operation on specific areas on the back of the circuit board. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] Figure 1 This is a top view of the present invention.

[0011] Figure 2 yes Figure 1 Enlarged structural diagram at point M. Detailed Implementation

[0012] The present invention will now be described in detail with reference to specific embodiments:

[0013] like Figure 1 and Figure 2 The automatic flipping fixture for applying conformal coating shown includes a frame 1, a tray 2, a fixed clamping block 21, a drive wheel 22, a movable clamping block 23, a positioning plate 24, a second rotating shaft 25, a guide rod 26, a spring 27, an anti-detachment stop ring 28, and a linear track 3. A belt conveyor 11 is installed on the frame 1. Several trays 2 are fixedly mounted on two belts of the belt conveyor 11. Each tray 2 has a through hole 20 in the middle. The drive wheel 22 is rotatably mounted on the upper end of the tray 2 via a first rotating shaft. The drive wheel 22 is fixedly sleeved on the first rotating shaft, which is rotatably mounted on the tray 2. The movable clamping block 23 is fixedly mounted on the first shaft. The second rotating shaft 25 is rotatably mounted on the lower part of the tray 2. At the end, the positioning disk 24 is fixedly installed on the second rotating shaft 25. Four guide rods 26 are distributed in a rectangle, with their inner ends fixedly installed on the movable clamping block 23. The outer ends of the guide rods 26 are slidably installed on the positioning disk 24. The guide rods 26 are fixedly sleeved with an anti-detachment stop ring 28 acting on the outer end face of the positioning disk 24. The spring 27 is sleeved on the guide rods 26. The two ends of the spring 27 act on the movable clamping block 23 and the positioning disk 24 respectively. The fixed clamping block 21, the movable clamping block 23, the positioning disk 24, the guide rods 26, the spring 27 and the anti-detachment stop ring 28 are all located in the through hole 20. The linear track 3 is horizontally fixedly installed on the frame 1, and the transmission wheel 22 is placed on the linear track 3.

[0014] The fixed clamping block 21 and the movable clamping block 23 are configured as L-shaped structures with the same direction. The L-shaped structure can support the circuit board 10 for clamping and fixing, avoid limiting the position of the circuit board 10, and prevent the circuit board 10 from being pushed out between the fixed clamping block 21 and the movable clamping block 23 due to excessive force.

[0015] The transmission wheel 22 is covered with an anti-slip rubber sleeve, and an anti-slip rubber strip is fixedly installed on the top surface of the linear track 3 to increase the friction between the transmission wheel 22 and the linear track 3 and avoid slippage.

[0016] The movable clamping block 23 and the positioning plate 24 are provided with blind hole slots. The two ends of the spring 27 are placed in the blind hole slots. The spring 27 can be compressed into the blind hole slots to further reduce the front and rear width of the frame 1, reduce the tooling manufacturing cost and space occupancy.

[0017] The circuit board 10 is placed between the fixed clamp 21 and the movable clamp 23. The circuit board 10 pushes the movable clamp 23 to move outward against the elastic force of the spring 27. Under the action of the elastic force of the spring 27, the fixed clamp 21 and the movable clamp 23 cooperate to clamp and fix the circuit board 10. The automatic conformal coating equipment performs coating operation on a specific position on the front of the circuit board 10. Then, the belt transmission line 11 is started to move a preset distance. When the transmission wheel 22 moves on the linear track 3, the transmission wheel 22 drives the clamping mechanism composed of the first rotating shaft, the fixed clamp 21, the movable clamp 23, the positioning plate 24, the guide rod 26, the spring 27, the anti-detachment stop ring 28, and the first rotating shaft 25, as well as the circuit board 10, to rotate 180° synchronously. The automatic conformal coating equipment performs coating operation on a specific position on the back of the circuit board 10. After the double-sided coating is completed, the operator removes the circuit board 10 from between the fixed clamp 21 and the movable clamp 23.

Claims

1. A kind of automatic overturning tool of waterproof paint brushing, it is characterized by: The system includes a frame (1), a tray (2), a fixed clamping block (21), a transmission wheel (22), a movable clamping block (23), a positioning plate (24), a second rotating shaft (25), a guide rod (26), a spring (27), an anti-detachment stop ring (28), and a linear track (3). A belt conveyor (11) is installed on the frame (1). Several trays (2) are fixedly installed on two belts of the belt conveyor (11). Each tray (2) has a through hole (20) in the middle. The transmission wheel (22) is rotatably installed on the upper end of the tray (2) via a first rotating shaft. The movable clamping block (23) is fixedly installed on the first rotating shaft. The second rotating shaft (25) is rotatably installed on the lower end of the tray (2). The positioning plate (24) is fixedly installed on the second rotating shaft (25). Four guide rods (26) are also present. The guide rod (26) is rectangularly distributed and its inner end is fixedly installed on the movable clamping block (23). The outer end of the guide rod (26) is slidably installed on the positioning plate (24). The guide rod (26) is fixedly sleeved with an anti-detachment stop ring (28) acting on the outer end face of the positioning plate (24). The spring (27) is sleeved on the guide rod (26). The two ends of the spring (27) act on the movable clamping block (23) and the positioning plate (24) respectively. The fixed clamping block (21), the movable clamping block (23), the positioning plate (24), the guide rod (26), the spring (27) and the anti-detachment stop ring (28) are all located in the through hole (20). The linear track (3) is horizontally fixedly installed on the frame (1). The transmission wheel (22) is placed on the linear track (3).

2. The automatic turning-over tooling for waterproofing paint brushing according to claim 1, characterized in that: The fixed clamp (21) and the movable clamp (23) are configured as L-shaped structures with the same direction.

3. The automatic turning device for waterproofing paint brushing according to claim 1, characterized in that: The transmission wheel (22) is covered with an anti-slip rubber sleeve, and the top surface of the linear track (3) is fixed with an anti-slip rubber strip.

4. The automatic turning device for painting of waterproof paint according to claim 1, wherein: Blind hole slots are provided on the movable clamping block (23) and the positioning plate (24), and the two ends of the spring (27) are placed in the blind hole slots.

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