PCB (Printed Circuit Board) drying equipment

Abstract

The utility model provides PCB (Printed Circuit Board) drying equipment which comprises a drying box of which the symmetrical side surfaces are respectively provided with a feeding hole for placing a circuit board body, a conveying assembly which is arranged in the drying box and is used for conveying the circuit board body, and a drying mechanism which is arranged in the drying box and is used for drying the circuit board body, the conveying assembly comprises two driving wheels and a conveying belt, wherein the two driving wheels are arranged in the drying box in parallel and are close to the positions of the two different feeding openings respectively, the two driving wheels are sleeved with the conveying belt, and drying holes are evenly formed in the end face of the conveying belt. The drying mechanism is arranged in the drying box and dries the upper end face and the lower end face of the circuit board body conveyed on the conveying belt. According to the utility model, the silicon wafer body can be stably lifted, and electrostatic discharge of the silicon wafer body is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB circuit board production, in particular to a PCB circuit board drying device. Background Art

[0002] PCB printing, also known as circuit board printing, is a very developed new industry today, and the rapid development of screen printing has injected vitality into this industry and brought major changes to the electronics industry. The current screen printing process is fully capable of adapting to high-density PCB production;

[0003] Printed circuit boards need to be dried after being treated with liquid medicine. The general drying devices on the market do not have a very good drying effect. Most of the existing drying devices are divided into two types. The first method is to manually place the circuit board in the drying device and then dry the circuit board comprehensively. This method can evenly dry the surface of the circuit board and has a good drying effect, but the efficiency is low and it is not convenient to perform a large number of drying operations on the circuit board. The second method is to place the circuit board on a conveying device and then dry the circuit board on the conveying device by arranging a drying device on the conveying device. Although this drying method improves the drying efficiency of the circuit board, it can only dry a single surface of the circuit board and cannot evenly dry the surface of the circuit board, which reduces the drying effect of the circuit board. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a PCB circuit board drying device, which can conveniently and evenly dry the circuit board body, thereby improving the drying effect and efficiency of the circuit board.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB circuit board drying device, comprising a drying box with feed ports for placing circuit board bodies on symmetrical sides, a conveying assembly arranged in the drying box to convey the circuit board bodies, and a drying mechanism arranged in the drying box to dry the circuit board bodies, the conveying assembly comprising two driving wheels arranged in parallel in the drying box and adjacent to two different feed ports, and a conveyor belt sleeved on the two driving wheels and having evenly distributed drying holes on the end surface;

[0006] The drying mechanism is arranged in the drying box and dries the upper and lower end surfaces of the circuit board body conveyed on the conveyor belt;

[0007] The drying mechanism includes a nozzle disposed in the drying box and located above and below the upper surface of the conveyor belt to spray hot air, and an adjusting component disposed in the drying box and adjusting the spray direction of the nozzle located above and below the upper surface of the conveyor belt, and the two nozzle spray ports located above and below the upper surface of the conveyor belt are close to each other;

[0008] The adjusting component includes a plurality of first rotating blocks which are arranged between two driving wheels at equal intervals and are adjacent and parallel in pairs, a plurality of first rotating shafts which are rotatably arranged in the first rotating blocks in a one-to-one correspondence and have one end fixedly arranged on the inner wall of the drying box, a plurality of second rotating blocks which are arranged above the plurality of first rotating blocks in a one-to-one correspondence, a plurality of second rotating shafts which are rotatably arranged in the second rotating blocks in a one-to-one correspondence and have one end fixedly arranged on the inner wall of the drying box, and an adjusting member which is arranged in the drying box and controls the plurality of first rotating blocks and the plurality of second rotating blocks to rotate, wherein the axes of the plurality of first rotating shafts and the plurality of second rotating shafts are parallel to the axes of the driving wheels; and a plurality of nozzles are evenly spaced on adjacent end surfaces of the first rotating blocks and the second rotating blocks which are adjacent in pairs.

[0009] Preferably, the adjusting member includes two linkage rods which are respectively arranged horizontally up and down on the sides of the multiple first rotating blocks and the multiple second rotating blocks, and a control structure which is arranged in the drying box and controls the multiple first rotating blocks and the multiple second rotating blocks to rotate synchronously through the two linkage rods. The side surfaces of the two linkage rods are rotationally connected to the side surfaces of the multiple first rotating blocks and the multiple second rotating blocks in a one-to-one manner.

[0010] Preferably, the control structure includes a control rod which is vertically arranged in the drying box and can move along the length direction of the linkage rod and has a limit groove in the length direction of the rod body, a rotating disk which is arranged in the drying box and located on one side of the control rod, a transmission rod whose one end is rotatably connected to the middle position of the control rod and the other end is rotatably connected to the end surface of the rotating disk away from the middle position, and two limit blocks which are respectively adjacent to one end of different linkage rods are slidably arranged in the limit groove, and the two limit blocks are respectively rotatably connected to different ends of the linkage rods in a one-to-one correspondence.

[0011] Preferably, a heating air inlet device is provided on the top end surface of the drying box, and the heating air inlet device is connected to a plurality of nozzles respectively through connecting pipes.

[0012] Preferably, a rotating rod is rotatably arranged on the opening wall of the two feed openings near the bottom end of the drying box.

[0013] The beneficial effects of the utility model are as follows: the circuit board body is directly placed in the drying box through the feed port, the circuit board body is conveyed by a conveyor belt arranged in the drying box, and a drying mechanism is arranged in the drying box, so that the upper surface of the circuit board body can be evenly dried, and a plurality of drying holes arranged at equal intervals are opened on the surface of the conveyor belt, so that the upper and lower end surfaces of the circuit board body can be evenly dried, thereby improving the drying effect and efficiency of the circuit board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a simplified structural diagram of the PCB circuit board drying equipment proposed by the utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the PCB circuit board drying equipment proposed by the utility model.

[0017] Figure 3 It is a structural schematic diagram of the control structure of the utility model.

[0018] In the figure: 1. drying box; 2. feeding port; 3. heating air inlet device; 4. rotating rod; 5. conveyor belt; 6. drying hole; 7. driving wheel; 8. nozzle; 9. first rotating block; 10. first rotating shaft; 11. linkage rod; 12. second rotating block; 13. second rotating shaft; 14. control rod; 15. transmission rod; 16. rotating disk; 17. limiting groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0020] See also Figure 1-3 A PCB circuit board drying device comprises a drying box 1 with symmetrical sides each provided with a feed port 2 for placing a circuit board body, a conveying assembly arranged in the drying box 1 for conveying the circuit board body, and a drying mechanism arranged in the drying box 1 for drying the circuit board body, wherein the conveying assembly comprises two driving wheels 7 arranged in parallel with each other in the drying box 1 and respectively adjacent to two different feed ports 2, and a conveying belt 5 sleeved on the two driving wheels 7 and having evenly distributed drying holes 6 opened on the end surface;

[0021] The drying mechanism is arranged in the drying box 1 and dries the upper and lower end surfaces of the circuit board body conveyed on the conveyor belt 5 .

[0022] like Figure 1-3As shown, the circuit board body is directly placed in the drying box 1 through the feed port 2, and the driving wheel 7 is driven by the motor to rotate, so as to facilitate the conveyor belt 5 sleeved on the two driving wheels 7 to rotate, so as to facilitate the circuit board body placed on the conveyor belt 5 to be transported, and the surface of the conveyor belt 5 is evenly provided with drying holes 6. In conjunction with the drying mechanism arranged in the drying box 1, the upper end surface and the lower end surface of the circuit board body on the conveyor belt 5 are evenly dried, so that the circuit board body can be evenly dried conveniently, thereby improving the drying effect and efficiency of the circuit board.

[0023] like Figure 2 As shown, the drying mechanism includes a nozzle 8 disposed in the drying box 1 and located above and below the upper surface of the conveyor belt 5 for spraying hot air, and an adjusting component disposed in the drying box 1 and adjusting the spray direction of the nozzle 8 located above and below the upper surface of the conveyor belt 5. The two nozzle ports 8 respectively located above and below the upper surface of the conveyor belt 5 are close to each other. When the circuit board body is conveyed on the conveyor belt 5, hot air is sprayed through the nozzle 8 disposed above and below the upper surface of the conveyor belt 5, thereby facilitating uniform drying of the upper and lower end surfaces of the circuit board body, improving the drying effect of the end surfaces of the circuit board body, and avoiding the situation in the prior art that when the circuit board body is placed on the existing conveyor belt for drying, only the top end surface of the circuit board body can be dried, thereby improving the drying effect and efficiency of the circuit board.

[0024] like Figure 2 As shown, the adjustment component includes a plurality of first rotating blocks 9 which are arranged between the two driving wheels 7 at equal intervals and are adjacent to each other and parallel to each other, a plurality of first rotating shafts 10 which are rotatably arranged in the first rotating blocks 9 in a one-to-one correspondence and have one end fixedly arranged on the inner wall of the drying box 1, a plurality of second rotating blocks 12 which are rotatably arranged above the plurality of first rotating blocks 9 in a one-to-one correspondence, a plurality of second rotating shafts 13 which are rotatably arranged in the second rotating blocks 12 in a one-to-one correspondence and have one end fixedly arranged on the inner wall of the drying box 1, and an adjustment member which is arranged in the drying box 1 and controls the plurality of first rotating blocks 9 and the plurality of second rotating blocks 12 to rotate. The axes of the rotating shaft 10 and the multiple second rotating shafts 13 are parallel to the axis of the driving wheel 7; multiple nozzles 8 are evenly spaced on the adjacent end surfaces of the adjacent first rotating blocks 9 and the second rotating blocks 12, wherein the adjusting member arranged in the drying box 1 is convenient for driving the multiple first rotating blocks 9 and the multiple second rotating blocks 12 to rotate, thereby facilitating the adjustment of the angles of the nozzles 8 arranged on the first rotating blocks 9 and the second rotating blocks 12 to spray hot air onto the end surfaces of the circuit board body, thereby facilitating the drying of the end surfaces of the circuit board, and can conveniently and evenly dry the circuit board body, thereby improving the drying effect and efficiency of the circuit board.

[0025] The adjusting member includes two linkage rods 11 which are respectively arranged horizontally up and down on the sides of the multiple first rotating blocks 9 and the multiple second rotating blocks 12, and a control structure which is arranged in the drying box 1 and controls the multiple first rotating blocks 9 and the multiple second rotating blocks 12 to rotate synchronously through the two linkage rods 11. The side surfaces of the rod bodies of the two linkage rods 11 are rotationally connected to the side surfaces of the multiple first rotating blocks 9 and the multiple second rotating blocks 12 in a one-to-one corresponding manner.

[0026] The control structure includes a control rod 14 which is vertically arranged in the drying box 1 and can move along the length direction of the linkage rod 11 and has a limit groove 17 in the length direction of the rod body, a rotating disk 16 which is arranged in the drying box 1 and is located on one side of the control rod 14, and a transmission rod 15 which has one end rotationally connected to the middle position of the control rod 14 and the other end rotationally connected to the end face of the rotating disk 16 away from the middle position, and two limit blocks which are respectively adjacent to one end of different linkage rods 11 are slidably arranged in the limit groove 17, and the two limit blocks are respectively rotationally connected to the ends of different linkage rods 11 in a one-to-one correspondence.

[0027] like Figure 2-3 As shown, the rotating disk 16 is driven to rotate by controlling the motor, so that the vertically arranged control rod 14 is driven to reciprocate along the length direction of the linkage rod 11 in the drying box 1 through the connected transmission rod 15, so that the linkage rod 11 drives multiple first rotating blocks 9 and multiple second rotating blocks 12 to rotate around the first rotating shaft 10 and the second rotating shaft 13 respectively, so as to drive the nozzle 8 arranged on the first rotating block 9 and the second rotating block 12 to rotate, so as to facilitate uniform drying of the surface of the circuit board body on the conveyor belt 5, and the circuit board body can be evenly dried conveniently, thereby improving the drying effect and efficiency of the circuit board.

[0028] A heating air inlet device 3 is provided on the top end surface of the drying box 1, and the heating air inlet device 3 is connected to a plurality of nozzles 8 through connecting pipes.

[0029] A rotating rod 4 is rotatably arranged on the opening wall of the two feed openings 2 near the bottom end of the drying box 1 .

[0030] The circuit board body can be transported to the feed port 2 by an external conveying device, and then rotated by a rotating rod 4 arranged at the feed port 2, so as to facilitate the circuit board body to move to the conveyor belt 5, and then through the drying mechanism arranged in the drying box 1, the two end surfaces of the circuit board body can be dried.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A PCB circuit board drying device, comprising a drying box (1) with symmetrical sides each having a feed port (2) for placing a circuit board body, a conveying assembly arranged in the drying box (1) for conveying the circuit board body, and a drying mechanism arranged in the drying box (1) for drying the circuit board body, characterized in that: The conveying assembly comprises two driving wheels (7) which are arranged in parallel with each other in the drying box (1) and are respectively adjacent to two different feed ports (2), and a conveying belt (5) which is sleeved on the two driving wheels (7) and has evenly distributed drying holes (6) on its end surface; The drying mechanism is arranged in the drying box (1) and dries the upper and lower end surfaces of the circuit board body conveyed on the conveyor belt (5); The drying mechanism comprises a nozzle (8) disposed in a drying box (1) and located above and below the upper surface of a conveyor belt (5) for spraying hot air, and an adjusting component disposed in the drying box (1) for adjusting the spray direction of the nozzle (8) located above and below the upper surface of the conveyor belt (5), wherein the spray ports of the two nozzles (8) respectively located above and below the upper surface of the conveyor belt (5) are close to each other; The adjustment component comprises a plurality of first rotating blocks (9) which are arranged between two driving wheels (7) at equal intervals and are adjacent to each other and parallel to each other, a plurality of first rotating shafts (10) which are rotatably arranged in the first rotating blocks (9) in a one-to-one correspondence and have one end fixedly arranged on the inner wall of the drying box (1), a plurality of second rotating blocks (12) which are arranged above the plurality of first rotating blocks (9) in a one-to-one correspondence, a plurality of second rotating shafts (13) which are rotatably arranged in the second rotating blocks (12) in a one-to-one correspondence and have one end fixedly arranged on the inner wall of the drying box (1), and an adjustment member which is arranged in the drying box (1) and controls the plurality of first rotating blocks (9) and the plurality of second rotating blocks (12) to rotate, wherein the axes of the plurality of first rotating shafts (10) and the plurality of second rotating shafts (13) are parallel to the axis of the driving wheel (7); and a plurality of nozzles (8) are arranged at equal intervals on the adjacent end surfaces of the first rotating blocks (9) and the second rotating blocks (12) which are adjacent to each other.

2. A PCB circuit board drying equipment according to claim 1, characterized in that: The adjusting member comprises two linkage rods (11) which are arranged on the side surfaces of the plurality of first rotating blocks (9) and the plurality of second rotating blocks (12) in a horizontal manner up and down, respectively, and a control structure which is arranged in the drying box (1) and controls the plurality of first rotating blocks (9) and the plurality of second rotating blocks (12) to rotate synchronously through the two linkage rods (11); the side surfaces of the two linkage rods (11) are rotationally connected to the side surfaces of the plurality of first rotating blocks (9) and the plurality of second rotating blocks (12) in a one-to-one corresponding manner.

3. A PCB circuit board drying equipment according to claim 2, characterized in that: The control structure comprises a control rod (14) vertically arranged in the drying box (1) and movable along the length direction of the linkage rod (11) and having a limit groove (17) in the length direction of the rod body, a rotating disk (16) arranged in the drying box (1) and located on one side of the control rod (14), a transmission rod (15) having one end rotationally connected to the middle position of the control rod (14) and the other end rotationally connected to the end face of the rotating disk (16) away from the middle position, two limit blocks respectively adjacent to one end of different linkage rods (11) are slidably arranged in the limit groove (17), and the two limit blocks are respectively rotationally connected to the ends of different linkage rods (11) in a one-to-one correspondence.

4. A PCB circuit board drying equipment according to claim 3, characterized in that: A heating air inlet device (3) is provided on the top end surface of the drying box (1), and the heating air inlet device (3) is respectively connected to a plurality of nozzles (8) via connecting pipes.

5. A PCB circuit board drying device according to claim 4, characterized in that: A rotating rod (4) is rotatably arranged on the opening wall of the two feed openings (2) near the bottom end of the drying box (1).

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