Circuit board drying device

Abstract

The invention relates to the field of circuit board production, in particular to a circuit board drying device which comprises a rack, a supporting plate is fixed to the rack, a plurality of supporting shafts are evenly arranged on the supporting plate, a rotating disc is fixed to each supporting shaft, the supporting shafts are driven by a motor to rotate, a drying cover is fixed to the portion, above the supporting plate, of the rack, and the drying cover is fixed to the portion, above the supporting plate, of the rack. The drying cover comprises a heating cover, preheating covers are fixed to the two sides of the heating cover, an electric heating pipe is further fixed in the heating cover, a blowing fan is further arranged on the portion, above the electric heating pipe, of the heating cover, a plurality of drying fans are further evenly fixed to the two sides in the heating cover, and sliding plates are arranged between the two sides of the drying cover and the supporting plates. Movable air cylinders are fixed to the portions, on the two sides of the supporting plate, of the rack, the tail ends of piston rods of the movable air cylinders are fixed to the sliding plates at the corresponding positions, and fixing plates are arranged on one sides of the sliding plates. According to the device, the circuit board can be continuously dried.

Description

Technical Field

[0001] The invention relates to the field of circuit board production, and in particular to a circuit board drying device. Background Art

[0002] The names of circuit boards include ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed (copper etching technology) circuit boards, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances. Circuit boards can be called printed circuit boards or printed circuit boards.

[0003] Patent application number: CN202122454763.1 discloses a circuit board drying device, including a drying box, wherein the top wall and the bottom wall of the drying box are both provided with heating plates, a plurality of placement plates are provided inside the drying box, strip-shaped openings are provided on both sides of the drying box, a plurality of clamping mechanisms are provided on the upper surfaces of the placement plates, a plurality of placement plates are provided with rotating grooves on both sides, a screw is rotatably connected inside the rotating groove, a plurality of placement plates are fixedly connected with guide rods on both sides, a movable plate is jointly sleeved on the surface of the screw and the guide rod, the movable plate is located outside the drying box, and a side door is rotatably connected on one side of the drying box. The circuit board is placed by opening the side door, and the side door is opened again to take out the circuit board after the circuit board is dried. However, this type of drying device opens the side door after drying the circuit board, resulting in the circuit board being preheated and heated and dried again after all the heat is discharged, resulting in low drying efficiency and serious heat loss.

[0004] The present invention is proposed in view of the deficiencies in the prior art. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a circuit board drying device.

[0006] The present invention can be implemented by the following technical solutions:

[0007] The invention discloses a circuit board drying device, comprising a frame, a support plate is fixed on the frame, a plurality of support shafts are evenly arranged on the support plate, a turntable is fixed on the support shafts, the support shafts are all driven to rotate by a motor, a drying cover is fixed on the frame above the support plate, the drying cover comprises a heating cover, preheating covers are fixed on both sides of the heating cover, an electric heating pipe is also fixed in the heating cover, a blower fan is also arranged on the heating cover above the electric heating pipe, a plurality of drying fans are evenly fixed on both sides of the heating cover, a slide plate is arranged between both sides of the drying cover and the support plate, a mobile cylinder is fixed on the frames on both sides of the support plate, a piston rod end of the mobile cylinder is fixed to a slide plate at a corresponding position, a fixed plate is arranged on one side of the slide plate, a plurality of fixed cylinders are also fixed on the slide plate, a piston rod end of the fixed cylinder is fixed to a fixed plate at a corresponding position, a fixed rod is fixed on the fixed plate at a corresponding position, a fixed rod passes through the slide plate and is slidably connected to the slide plate, a fixed pipe is fixed to the end of the fixed rod, and a fixed hole is arranged on the fixed pipe. The circuit board is evenly placed on the fixed seat. Since both ends of the fixed seat are fixed with fixed shafts used in conjunction with the fixed holes, the fixed seat is placed on the turntable, the fixed cylinder is started, the piston rod on the fixed cylinder is shortened, the fixed plate moves, the fixed plate drives the fixed rod to move, the fixed tube moves, and after the fixed shaft is inserted into the corresponding fixed tube, the moving cylinder is started, the piston rod on the moving cylinder is extended, the slide plate moves, and the fixed seat moves with the slide plate. The fixed seat moves from the first turntable to the second turntable, and the fixed seat with the circuit board is placed on the first turntable again, and the electric heating tube is powered on to generate heat, the blower fan is started, and the blower fan rotates to drive the air at the position of the electric heating tube to form an airflow to flow in the heating cover, and the hot air flow flows to the preheating cover to preheat the circuit board, and the fixed cylinder is started, the fixed cylinder The upper piston rod extends, the fixed tube is separated from the fixed shaft, the moving cylinder is started again, the piston rod on the moving cylinder is shortened, the slide plate returns to the initial position, and each turntable is driven to rotate by the motor. The circuit board rotates with the turntable, and the circuit board is preheated by the hot air flow. The cycle operation is in progress. After the preheated circuit board reaches the turntable in the heating cover, the circuit board is quickly dried by the hot air flow in the heating cover, and is discharged from another preheating cover position after drying. When the high-temperature circuit board reaches another preheating cover position, the heat slowly decreases after the circuit board is away from the heating cover to avoid damage to the circuit board. The device can realize continuous drying of the circuit board, greatly improve the drying efficiency of the circuit board, and the heat at the heating cover position of the circuit board is discharged into the two preheating covers to preheat and cool the circuit board, which can avoid effective heat loss.

[0008] Preferably, a gear is fixed to the output end of the motor, a synchronous wheel is fixed to each of the support shafts, and the gear is connected to each synchronous wheel via a synchronous belt.

[0009] Preferably, a heat insulation curtain is fixed to each end of the preheating cover.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] The device can realize continuous drying of the circuit board, greatly improving the drying efficiency of the circuit board, and the heat at the heating cover position of the circuit board is discharged into the two preheating covers to preheat and cool the circuit board, which can avoid effective heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 A top view of the present invention;

[0015] Figure 3 for Figure 2 Sectional view at AA;

[0016] Figure 4 for Figure 2 Sectional view at the middle BB;

[0017] In the figure: 1, frame; 2, support plate; 3, support shaft; 4, turntable; 5, synchronous wheel; 6, motor; 7, gear; 8, synchronous belt; 9, drying cover; 10, heating cover; 11, preheating cover; 12, electric heating pipe; 13, blower fan; 14, heat insulation curtain; 15, drying fan; 16, slide plate; 17, moving cylinder; 18, fixed cylinder; 19, fixed plate; 20, fixed rod; 21, fixed pipe; 22, fixed hole; DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0019] Embodiment 1:

[0020] like Figures 1 to 4As shown, the present embodiment discloses a circuit board drying device, comprising a frame 1, a support plate 2 is fixed on the frame 1, a plurality of support shafts 3 are evenly arranged on the support plate 2, a turntable 4 is fixed on the support shafts 3, and the support shafts 3 are driven to rotate by a motor 6, a drying cover 9 is fixed on the frame 1 above the support plate 2, the drying cover 9 comprises a heating cover 10, preheating covers 11 are fixed on both sides of the heating cover 10, an electric heating pipe 12 is also fixed in the heating cover 10, a blower fan 13 is also arranged on the heating cover 10 above the electric heating pipe 12, a plurality of drying fans 15 are evenly fixed on both sides of the heating cover 10, and the drying cover 9 is connected to the heating cover 10 on both sides. Slide plates 16 are arranged between the support plates 2, and mobile cylinders 17 are fixed on the frames 1 on both sides of the support plates 2, and the ends of the piston rods of the mobile cylinders 17 are fixed to the slide plates 16 at corresponding positions, and fixed plates 19 are arranged on one side of the slide plates 16, and a plurality of fixed cylinders 18 are fixed on the slide plates 16, and the ends of the piston rods of the fixed cylinders 18 are fixed to the fixed plates 19 at corresponding positions, and fixed rods 20 are fixed on the fixed plates 19 at positions corresponding to the turntable 4, and the fixed rods 20 pass through the slide plates 16 and are slidably connected to the slide plates 16, and fixed tubes 21 are fixed to the ends of the fixed rods 20, and fixed holes 22 are arranged on the fixed tubes 21. The circuit boards are evenly placed on the fixed seats. Since the two ends of the fixed seats are fixed with fixed shafts used in conjunction with the fixed holes 22, the fixed seats are placed on the turntable 4. The fixed cylinder 18 is started, the piston rod on the fixed cylinder 18 is shortened, the fixed plate 19 moves, the fixed plate 19 drives the fixed rod 20 to move, the fixed tube 21 moves, and after the fixed shaft is inserted into the corresponding fixed tube 21, the moving cylinder 17 is started, the piston rod on the moving cylinder 17 is extended, the slide plate 16 moves, and the fixed seat moves with the slide plate 16. The fixed seat moves from the first turntable 4 to the second turntable 4, and the fixed seat with the circuit boards placed on it is placed on the first turntable 4 again, and the electric heating tube 12 is powered on to generate heat, the blower fan 13 is started, and the blower fan 13 rotates to drive the air at the position of the electric heating tube 12 to form an airflow to flow in the heating cover 10, and the hot air flow flows to the preheating cover 11 to preheat the circuit board, and the fixed cylinder 18 is fixed. After starting, the piston rod on the fixed cylinder 18 is extended, the fixed tube 21 is separated from the fixed shaft, and each turntable 4 is driven to rotate by the motor 6. The circuit board rotates with the turntable 4, and the circuit board is preheated by the hot air flow. The mobile cylinder 17 is started again, the piston rod on the mobile cylinder 17 is shortened, and the slide plate 16 returns to the initial position, and the cycle operation is carried out. After the preheated circuit board reaches the turntable 4 in the heating cover 10, the circuit board is quickly dried by the hot air flow in the heating cover 10, and is discharged from the position of another preheating cover 11 after drying. When the high-temperature circuit board reaches the position of another preheating cover 11, the circuit board is away from the heating cover 10, and the heat slowly decreases to avoid damage to the circuit board. The device can realize continuous drying of the circuit board, greatly improve the drying efficiency of the circuit board, and the heat at the position of the circuit board heating cover 10 is discharged into the two preheating covers 11 to preheat and cool the circuit board, which can avoid effective heat loss.

[0021] Among them, a gear 7 is fixed to the output end of the motor 6, and a synchronous wheel 5 is fixed on each support shaft 3. The gear 7 is connected to each synchronous wheel 5 through a synchronous belt 8.

[0022] Embodiment 2:

[0023] This embodiment discloses a circuit board drying device. Based on the structure and principle of the first embodiment, a heat insulation curtain 14 is fixed to the end of the preheating cover 11 of this embodiment.

[0024] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be regarded as the scope of protection of the present invention.

Claims

1. A circuit board drying device, comprising a frame, characterized in that: A support plate is fixed on the frame, and a plurality of support shafts are evenly arranged on the support plate, and a turntable is fixed on the support shafts, and the support shafts are driven to rotate by a motor, and a drying hood is fixed on the frame above the support plate, and the drying hood includes a heating hood, and preheating hoods are fixed on both sides of the heating hood, and an electric heating pipe is also fixed in the heating hood, and a blower fan is also arranged on the heating hood above the electric heating pipe, and a plurality of drying fans are evenly fixed on both sides of the heating hood, and slide plates are arranged between the two sides of the drying hood and the support plate, and mobile cylinders are fixed on the frames on both sides of the support plate, and the ends of the piston rods of the mobile cylinders are fixed to the slide plates at corresponding positions, and a fixed plate is arranged on one side of the slide plate, and a plurality of fixed cylinders are also fixed on the slide plate, and the ends of the piston rods of the fixed cylinders are fixed to the fixed plates at corresponding positions, and fixed rods are fixed on the fixed plates at corresponding positions of the turntable, and the fixed rods pass through the slide plate and are slidably connected to the slide plate, and fixed pipes are fixed to the ends of the fixed rods, and fixed holes are arranged on the fixed pipes.

2. The circuit board drying device according to claim 1, characterized in that: A gear is fixed on the output end of the motor, a synchronous wheel is fixed on each of the support shafts, and the gear is wound around each of the synchronous wheels through a synchronous belt.

3. The circuit board drying device according to claim 1, characterized in that: A heat insulation curtain is fixed at each end of the preheating cover.

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