Turnover equipment for PCB (Printed Circuit Board) processing

Abstract

The utility model relates to turnover equipment for PCB (printed circuit board) processing, which comprises a conveying mechanism, the conveying mechanism comprises an assembly line I and an assembly line II, a conveying belt in the assembly line I is higher than the top end surface of a conveying belt in the assembly line II, and a turnover mechanism is arranged between the assembly line I and the assembly line II. The turnover mechanism comprises two sets of connecting plates connected with the assembly line I and the assembly line II, a flat box body with an opening facing the assembly line I is arranged between the two sets of connecting plates, an electromagnet is arranged at the sealed end in the box body, and rotating shafts which penetrate through the connecting plates and are driven by a motor are arranged on the two sides of the sealed end of the box body. The two side walls of the box body further protrude outwards to form arching parts on the same side as the rotating shaft, baffles on the same side as the open end of the box body are arranged in the two sets of arching parts, and the baffles are connected with the other side walls of the arching parts through springs. According to the PCB overturning device, overturning work of the PCB can be facilitated.

Description

Technical Field

[0001] This invention relates to the field of PCB board processing, and in particular to a folding device for PCB board processing. Background Technology

[0002] During PCB board processing, some steps require flipping the PCB board to facilitate gluing or soldering. This flipping is sometimes done manually, and sometimes using a folding device, such as the PCB board folding device described in patent number CN219718640U. This device has the following drawbacks when flipping PCB boards: when the length of the board inserted into the opening of the hollow board is short, when the hollow board rotates to flip the board, the area of ​​the board that is fixed is relatively small, while a large portion of the other end is suspended in the air, causing significant pressure on the fixed end. This can lead to situations such as the board breaking or the board slipping out of the hollow board opening during the flipping process. While the above problems do not occur when the board is inserted into the hollow board opening for a long length, there is a risk that after the board is flipped, only a small area of ​​one end will be on the conveyor belt. In this case, the contact area between the conveyor belt and the board may be small, making it difficult for the dynamic force generated by the movement of the conveyor belt to pull the board out of the hollow board opening. Instead, the end of the board on the conveyor belt will slip on the moving conveyor belt, making it difficult for the board to slide out of the hollow board opening, thus affecting the normal operation of subsequent processing. Summary of the Invention

[0003] The purpose of this invention is to provide a folding device for PCB board processing.

[0004] The technical problem of this invention is mainly solved by the following technical solution:

[0005] A folding device for PCB board processing includes a conveying mechanism. The conveying mechanism includes a production line I and a production line II. The conveyor belt in production line I is higher than the top surface of the conveyor belt in production line II. A flipping mechanism is provided between production lines I and II. The flipping mechanism includes two sets of connecting plates connecting production lines I and II. A flat box with an opening facing the direction of production line I is provided between the two sets of connecting plates. An electromagnet is provided on the sealed end of the box. Rotating shafts that penetrate the connecting plates and are driven by a motor are provided on both sides of the sealed end of the box. Arched portions protrude outward from both sides of the box and are on the same side as the rotating shafts. Baffles are provided in the two sets of arched portions and are on the same side as the opening end of the box. The baffles are connected to the other side wall of the arched portion by springs.

[0006] Preferably, both assembly line I and assembly line II consist of two sets of frames and a conveyor belt located between the two sets of frames, and the end of the connecting plate is fixedly connected to the corresponding frame.

[0007] Preferably, a guiding mechanism is provided at the downstream end of the production line I. The guiding mechanism includes a mounting seat provided at the top of the frame in the production line I. The mounting seat is fixed to the corresponding frame by bolts. A guide roller suspended above the top of the conveyor belt in the production line I is provided at the bottom of the mounting seat. A fixing rod located upstream of the guide roller is also provided at the bottom of the mounting seat. An elastic band with one end bonded to the inner side wall of the corresponding frame is inclinedly provided on the fixing rod.

[0008] Preferably, the inner side of the connecting plate is provided with an arc-shaped rod with the opening facing downward. The arc-shaped rod is coaxially arranged with the rotating shaft, and the radius of the arc-shaped rod is greater than the length of the box.

[0009] Preferably, the motor drives the housing to rotate clockwise and counterclockwise between production line I and production line II with the shaft as the center.

[0010] The beneficial effects of this invention are:

[0011] 1. This invention utilizes the thrust generated by the PCB board moving during the operation of the production line I, which acts on the baffle, and the magnetic attraction generated by the operation of the electromagnet, which acts on the baffle. This achieves the goal of increasing the distance between the baffle and the opening of the box through the above two methods, so that the end of the PCB board can be inserted deeper into the box, increasing the area of ​​the PCB board inside the box. This prevents problems such as the PCB board easily sliding out of the box or breaking when it is flipped by the box, due to a large area of ​​the PCB board being exposed on the outside of the box.

[0012] 2. In this invention, when the box body rotates the PCB board to the top of production line II, it is in a slightly tilted state. At this time, the PCB board will slowly slide out of the box body under its own weight. Secondly, when the PCB board slides down, it will not exert a squeezing force on the baffle. When this squeezing force is lost, the spring will extend to push the baffle in the arched part to move to the left, and further push the PCB board out of the box body. Thirdly, the electromagnet is de-energized, so without its magnetic attraction, it will not exert a pulling force on the baffle. At this time, the spring can further extend to push the baffle in the arched part to move to the left, so as to push the PCB board out of the box body. When the PCB board is pushed out of the box body in the above manner, the pulling force generated by the rotating conveyor belt on production line II acts on the end face of the PCB board in contact with it, so that the PCB board can be completely taken out of the box body in the above manner, thereby realizing the convenient export of the PCB board from the box body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention;

[0014] Figure 2 This is a cross-sectional view of the box body in this invention;

[0015] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0016] In the diagram: 1. Production line I, 2. Production line II, 3. Tilting mechanism, 31. Connecting plate, 32. Box body, 33. Rotating shaft, 34. Motor, 35. Arched part, 36. Baffle, 37. Spring, 38. Electromagnet, 4. Frame, 5. Conveyor belt, 6. Guiding mechanism, 61. Mounting base, 62. Guide roller, 63. Fixed rod, 64. Elastic belt, 7. Arc rod. Detailed Implementation

[0017] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0018] A folding device for PCB board processing includes a conveying mechanism, which includes a production line I1 and a production line II2. The conveyor belt 5 in the production line I1 is higher than the top surface of the conveyor belt 5 in the production line II2. A flipping mechanism 3 is provided between the production line I1 and the production line II2.

[0019] The flipping mechanism 3 includes two sets of connecting plates 31 connecting production line I1 and production line II2. A flat box 32 with an opening facing the production line I1 is provided between the two sets of connecting plates 31. An electromagnet 38 is provided on the sealed end inside the box 32. A rotating shaft 33 is provided on both sides of the sealed end of the box 32, passing through the connecting plates 31 and driven by a motor 34. Arched portions 35 protrude outward from both sides of the box 32, on the same side as the rotating shaft 33. A baffle 36 on the same side as the opening end of the box 32 is provided inside the two sets of arched portions 35. The baffle 36 is connected to the other side wall of the arched portion 35 by a spring 37.

[0020] In this embodiment, both assembly line I1 and assembly line II2 consist of two sets of frames 4 and a conveyor belt 5 located between the two sets of frames 4. The end of the connecting plate 31 is fixedly connected to the corresponding frame 4.

[0021] A guiding mechanism 6 is provided at the downstream end of the production line I1. The guiding mechanism 6 includes a mounting base 61 located on the top of the frame 4 in the production line I1. The mounting base 61 is fixed to the corresponding frame 4 by bolts. A guide roller 62 is provided at the bottom of the mounting base 61, which is suspended above the top of the conveyor belt 5 in the production line I1. A fixing rod 63 located upstream of the guide roller 62 is also provided at the bottom of the mounting base 61. An elastic band 64 with one end bonded to the inner side wall of the corresponding frame 4 is inclinedly provided on the fixing rod 63.

[0022] like Figure 1 As shown, the inner side of the connecting plate 31 is provided with an arc-shaped rod 7 with the opening facing downward. The arc-shaped rod 7 is coaxially arranged with the rotating shaft 33, and the radius of the arc-shaped rod 7 is greater than the length of the box body 32.

[0023] In this embodiment, the motor 34 drives the housing 32 to rotate clockwise and counterclockwise between production line I1 and production line II2 with the shaft 33 as the center.

[0024] Working principle: such as Figure 1 As shown, the opening of the box 32 is flush with the conveyor belt 5 in the production line I1 so that the conveyor belt 5 can input the PCB board into the box 32. In specific operation, the distance between the two sets of guide rollers 62 is adjusted to accurately guide the PCB board on the top of the conveyor belt 5 on the production line I1 to flow smoothly into the opening of the box 32, so as to prevent the PCB board from being located on one side of the production line I1 and affecting its sliding into the opening of the box 32. The adjustment steps of the guide mechanism 6 are as follows: the movable mounting base 61 drives the guide roller 62 to move, and the movable mounting base 61 drives the spring through the fixed rod 63. The elastic belt 64 is stretched or contracted. After the position of the guide roller 62 is adjusted, the mounting base 61 is locked and fixed on the frame 4 by bolts. This achieves the purpose of adjusting the distance between the two sets of guide rollers 62. When the conveyor belt 5 on the production line I1 moves the PCB board, the inclined surface of the elastic belt 64 guides the PCB board to the guide roller 62 and drives it to rotate. At this time, the two sets of rotating guide rollers 62 can guide the PCB board, so that the PCB board moves to the middle of the conveyor belt 5 and flows downward, and finally slides smoothly into the box 32.

[0025] When the conveyor belt 5 on production line I1 moves the PCB board downwards, under the influence of the thrust generated by the rotating conveyor belt 5, one end of the PCB board can be inserted into the box 32. At this time, the conveyor belt 5 continues to apply force to the PCB board, so that the PCB board applies the force to the baffle 36 to squeeze it, thereby pushing the baffle 36 to slide in the opening of the arched part 35 and compressing the spring 37. At the same time, the magnetic attraction generated by the operation of the electromagnet 38 acts on the baffle 36, causing the baffle 36 to move to the left and further compress the spring 37. In this way, the distance between the baffle 36 and the opening of the box 32 is increased through the above two methods, so that the end of the PCB board can go deeper into the box 32, increasing the area of ​​the PCB board inside the box 32. This prevents the PCB board from easily sliding out of the box 32 or breaking when it is flipped by the box 32 in the future due to a large area of ​​the PCB board being exposed on the outside of the box 32.

[0026] Further, the motor 34 drives the box 32 to rotate counterclockwise via the rotating shaft 33. At this time, the arc rod 7 can limit the range of back-and-forth sliding of the PCB board within the box 32. It should be noted that the distance between the two sets of guide rollers 62 is less than the distance between the two sets of arc rods 7. That is to say, when the end of the PCB board is inserted into the box 32, the PCB board is located between the two sets of arc rods 7. And when the box 32 drives the PCB board to rotate, the exposed end of the PCB board extends to the outside of the arc rod 7, so that the arc rod 7 can limit the PCB board back and forth.

[0027] Since the top surface of conveyor belt 5 in assembly line I1 is higher than that of conveyor belt 5 in assembly line II2, when the box 32 rotates the PCB board to a position above assembly line II2, the two are slightly tilted. At this time, the PCB board will slowly slide out of the box 32 under its own weight. Secondly, as the PCB board slides downwards, it will not exert pressure on the baffle 36. When this pressure is removed, the spring 37 will extend to push the baffle 36 inside the arched part 35 to move to the left, further pushing the PCB board out of the box 32. Thirdly, it will de-energize the electromagnet 38. Under the action of magnetic attraction, it will not pull on the baffle 36. At this time, the spring 37 can be further extended to push the baffle 36 in the arched part 35 to move to the left, so as to push the PCB board out of the box 32. When the PCB board is pushed out of the box 32 in the above way, the pulling force generated by the rotating conveyor belt 5 on the production line II2 acts on the end face of the PCB board in contact with it, so that the PCB board can be completely taken out of the box in the above way, thereby realizing the convenient export of the PCB board in the box 32. Then the production line II2 transports the flipped PCB board to the next step for processing.

[0028] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A folding device for PCB processing, comprising a conveying mechanism, characterized in that: the conveying mechanism comprises a flow line I and a flow line II, the conveying belt in the flow line I is higher than the top end surface of the conveying belt in the flow line II, a turnover mechanism is arranged between the flow line I and the flow line II, the turnover mechanism comprises two groups of connecting plates connecting the flow line I and the flow line II, a flat box body with an opening facing the flow line I is arranged between the two groups of connecting plates, an electromagnet is arranged on the sealed end in the box body, a rotating shaft penetrating through the connecting plate and driven by a motor is arranged on both sides of the sealed end of the box body, an arch part on the same side as the rotating shaft is protruded outward on both side walls of the box body, a baffle on the same side as the opening end of the box body is arranged in the two groups of arch parts, and the baffle is connected to the other side wall of the arch part through a spring. The flow line I and the flow line II are both composed of two groups of racks and a conveying belt between the two groups of racks, and the end of the connecting plate is fixedly connected to the corresponding rack.

2. The folding apparatus for processing PCB board according to claim 1, characterized in that: A guide mechanism is arranged at the downstream end of the flow line I, the guide mechanism comprises a mounting seat arranged on the top of the rack in the flow line I, the mounting seat is fixed to the corresponding rack through bolts, a guide roller suspended above the top of the conveying belt in the flow line I is arranged at the bottom of the mounting seat, a fixed rod located upstream of the guide roller is also arranged at the bottom of the mounting seat, and an elastic belt with one end bonded to the inner side wall of the corresponding rack is obliquely arranged on the fixed rod.

3. The folding apparatus for processing PCB board according to claim 2, characterized in that: An arc-shaped rod with an opening downward is arranged on the inner side of the connecting plate, the arc-shaped rod is coaxially arranged with the rotating shaft, and the radius of the arc-shaped rod is greater than the length of the box body.

4. The folding apparatus for processing PCB board according to claim 1, characterized in that: The motor drives the box body to rotate clockwise and counterclockwise between the flow line I and the flow line II with the rotating shaft as the center.

5. The folding apparatus for processing PCB board according to claim 1, characterized in that: ​

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