A PCB board drying device

Abstract

The present invention discloses a PCB board drying device, which relates to the technical field of PCB board manufacturing. The key points of the technical solution are as follows: the device comprises a pair of conveyor belts, wherein bearing blocks are respectively provided on opposite sides of the two conveyor belts; a discharge channel adapted to the thickness of the PCB boards is opened at one end of a storage tank, wherein the discharge channel is arranged directly above the feed end of the conveyor belt; a push plate is slidably installed inside the storage tank, and a transmission assembly is provided between the push plate and the conveyor belt, wherein the transmission assembly is configured such that when a bearing block moves directly below the discharge channel, the push plate slides toward the discharge channel by a distance equal to the thickness of a PCB board; a drying assembly is fixedly arranged on the conveyor belt, and two air outlet areas are provided in the length direction of the drying assembly, wherein a plurality of air outlets in an inclined state are symmetrically provided in the two air outlet areas, so that the PCB boards can be dried with low difficulty, good drying effect, and high drying efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB board manufacturing, and more particularly, to a PCB board drying device. Background Art

[0002] PCB, also known as printed circuit board, is the provider of electrical connections for electronic components. In order to remove grease, debris, etc. on the surface of the PCB board and ensure the cleanliness of the board surface, the PCB board needs to be browned. After browning, the PCB board needs to be dried.

[0003] After cleaning the PCB board, a large amount of water droplets will be formed on the surface of the PCB board. In the prior art, the PCB board is mainly placed in a drying oven for drying. Due to the limited thickness of the PCB board, when drying in the drying oven, the PCB board first needs to be supported on a carrier plate with one side. After the exposed side is dried, the staff needs to manually turn it over for secondary drying. The drying cycle is long and the drying process is relatively cumbersome, which is not conducive to batch drying of PCB boards. Therefore, in order to solve the above technical problems, the present application proposes a PCB board drying device. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a PCB drying device.

[0005] To achieve the above object, the present invention provides the following technical solution: a PCB board drying device, comprising:

[0006] A pair of conveyor belts are provided, one end of which is a feed end and the other end is a discharge end in the length direction; bearing blocks are provided on opposite sides of the two conveyor belts, and the bearing blocks are distributed at equal intervals in the direction of travel of the conveyor belts;

[0007] A storage trough is fixedly mounted at the feed end of the conveyor belt, and a discharge channel adapted to the thickness of the PCB board is opened at one end of the storage trough. The discharge channel is arranged directly above the feed end of the conveyor belt. A push plate is slidably mounted inside the storage trough, and a transmission assembly is provided between the push plate and the conveyor belt. The transmission assembly is configured such that when a bearing block moves directly below the discharge channel, the push plate slides toward the discharge channel a distance equal to the thickness of one PCB board.

[0008] The drying component is fixedly arranged on the conveyor belt. Two air outlet areas are provided in the length direction of the drying component. Multiple inclined air outlets are symmetrically arranged in the two air outlet areas, so that the hot air generated by the drying component contacts the two surfaces of the PCB board in an inclined state.

[0009] Preferably, the drying component includes a fixed part, a fan and a heating rod, the fixed part is fixedly installed on the conveyor belt, the heating rod is fixedly installed in the internal cavity of the fixed part, the fan is fixedly installed on the upper surface of the fixed part, and the air outlet is fixedly arranged on the lower surface of the fixed part.

[0010] Preferably, the transmission assembly includes a transmission belt, an active plate, a driven plate and a connecting piece. The active plates are arranged at equal intervals in the traveling direction of the conveyor belt, and the active plates correspond one-to-one to the supporting blocks. The transmission belt is rotatably installed on the storage slot, and the driven plates are installed at equal intervals in the traveling direction of the transmission belt. The spacing between two adjacent driven plates is adapted to the thickness of a PCB board. The transmission belt is fixedly connected to the push plate through a connecting piece.

[0011] Preferably, the connecting member is a bolt, two connecting heads are provided at equal intervals in the travel direction of the transmission belt, a connecting portion is fixedly mounted on one side of the push plate, and the bolts fixedly connect the connecting head and the connecting portion.

[0012] Preferably, threaded columns are fixedly installed at equal intervals in the traveling direction of the conveyor belt, a moving block is slidably provided on the outer surface of the threaded column, the supporting block is fixedly installed on the moving block, a threaded sleeve is threadedly connected to the outer surface of the threaded column, and one end of the threaded sleeve is rotatably connected to the moving block.

[0013] Preferably, a pair of baffles are fixedly mounted on the upper surface of the carrying block, and the distance between the top ends of the baffles and the discharge channel is smaller than the width of the PCB board.

[0014] Preferably, a plurality of balls are rotatably mounted on the opposite surfaces of the two blocking rods.

[0015] Preferably, a pair of baffles are slidably provided in the width direction of the storage tank, and a threaded rod is rotatably installed on the storage tank. One end of the threaded rod passes through the interior of the two baffles and is threadedly connected to the baffles, enabling the two baffles to move relative to each other or move away from each other.

[0016] Preferably, a picking belt is provided at the discharge end of the conveyor belt, the picking belt is provided between two conveyor belts, and picking splints are provided at equal intervals in the traveling direction of the picking splints.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By arranging a drying component on the conveyor belt, two air outlet areas are provided in the length direction of the drying component, and a plurality of air outlets in an inclined state are symmetrically provided in the two air outlet areas. The hot air generated by the drying component can contact the two surfaces of the PCB board in an inclined state. When the PCB board enters the area of ​​the drying component, there is a layer of water film on both sides. When the PCB board enters the area of ​​the drying component, the hot air contacts the surface of the PCB board in an inclined state. The hot air has a downward thrust on the surface of the PCB board, and then has a downward force on the water film on the surface of the PCB board, so that the water film can gather to the bottom end of the PCB board to form water droplets and separate from the PCB board. Therefore, the need to evaporate and remove a large amount of water by hot air is reduced. Only a small amount of water needs to be evaporated, which shortens the time required for the PCB board to be treated by hot air. The drying effect of the drying device on the PCB board can be improved, and the drying efficiency of the PCB board is also improved.

[0019] By setting up a pair of conveyor belts, each of which is provided with a bearing block on its opposite side, and a bearing groove on its upper surface adapted to the thickness of the PCB board, the bearing groove is used to support the corners of the PCB board. The two bearing blocks cooperate to support the two corners at the bottom of the PCB board, so that the PCB board remains in an upright position. As the PCB board moves along the conveyor belt, water droplets on the surface of the PCB board gradually flow downward under the action of gravity. Before drying, some water droplets will separate from the PCB board by themselves. Only the water film on the surface of the PCB board needs to be dried, which reduces the difficulty of drying the PCB board and helps to improve the drying efficiency.

[0020] A storage slot is provided at the feed end of the conveyor belt, and a discharge channel adapted to the thickness of the PCB board is opened at one end of the storage slot, and the discharge channel is provided directly above the feed end of the conveyor belt. A push plate is slidably installed inside the storage slot, and a transmission assembly is provided between the push plate and the conveyor belt. The transmission assembly is configured such that when a carrying block moves to directly below the discharge channel, the push plate slides toward the discharge channel by a distance equal to the thickness of a PCB board, so that a PCB board located at the end moves to the discharge channel and falls into the carrying slot through the discharge channel, thereby realizing automatic addition of PCB boards to the carrying block. There is no need for staff to place the PCB boards one by one in the carrying slots opened in the carrying block, and less labor is required.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. The specific implementation methods of the present invention are given in detail by the following embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 Schematic diagram of the cross-sectional structure of the drying component in the present invention;

[0025] Figure 3 It is a structural schematic diagram of the conveyor belt and storage tank in the present invention;

[0026] Figure 4 Schematic diagram of the structure of two conveyor belts in the present invention;

[0027] Figure 5 Schematic diagram of the structure of the conveyor belt in the present invention;

[0028] Figure 6 This is a schematic structural diagram of the threaded column, the bearing block, and the blocking rod in the present invention;

[0029] Figure 7 It is a structural schematic diagram of the slider, the bearing block and the blocking rod in the present invention;

[0030] Figure 8 It is a schematic structural diagram of the storage tank and the transmission belt in the present invention;

[0031] Figure 9 It is a schematic structural diagram of the storage tank and the push plate in the present invention;

[0032] Figure 10 It is a structural schematic diagram of the storage tank and baffle in the present invention.

[0033] 10. Conveyor belt; 101. Fixed side plate; 11. Active plate; 12. Threaded column; 121. Slide groove; 13. Threaded sleeve; 14. Moving block; 141. Slider; 15. Bearing block; 151. Bearing groove; 16. Stop rod; 161. Ball bearing;

[0034] 20. Fixing part; 201. Heating chamber; 21. Fan; 22. Heating rod; 23. Air outlet;

[0035] 30. Storage tank; 301. Discharge channel; 302. Slide rail; 31. Baffle; 32. Threaded rod; 33. Push plate; 331. Connecting part;

[0036] 40. Drive belt; 41. Driven plate; 42. Connector; 43. Bolt;

[0037] 50. Material retrieving belt; 51. Material retrieving splint. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-10 The principles and features of the present invention are described, and the examples given are only for the purpose of explaining the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in a very simplified form and are not in exact proportions, and are only used for the purpose of conveniently and clearly assisting in illustrating the embodiments of the present invention.

[0039] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] Please refer to Figures 1 to 10 As shown, the present invention provides a PCB board drying device, comprising:

[0042] The conveyor belt 10 is provided with a pair, one end of which in the length direction is the feeding end, and the other end is the discharging end. The conveyor belt 10 is rotatably mounted on the fixed side plate 101; a bearing block 15 is provided on the opposite side surfaces of the two conveyor belts 10, and a bearing groove 151 adapted to the thickness of the PCB board is opened on the upper surface of the bearing block 15. The bearing groove 151 is used to support the corners of the PCB board. The two bearing blocks 15 cooperate to support the two corners of the bottom end of the PCB board so that the PCB board can be kept in a vertical standing state. In the process of the PCB board following the movement of the conveyor belt 10, water droplets on the surface of the PCB board will gradually flow downward under the action of gravity. Before drying, some water droplets will separate from the PCB board by themselves. Only the water film on the surface of the PCB board needs to be dried, which reduces the difficulty of drying the PCB board and is conducive to promoting drying efficiency. The bearing blocks 15 are evenly spaced and distributed in the direction of travel of the conveyor belt 10;

[0043] The storage tank 30 is fixedly mounted at the feeding end of the conveyor belt 10, and is used to store the PCB boards to be dried. One end of the storage tank 30 is provided with a discharge channel 301 adapted to the thickness of the PCB boards. The discharge channel 301 is arranged just above the feeding end of the conveyor belt 10. A pushing plate 33 is slidably mounted inside the storage tank 30, and a transmission assembly is arranged between the pushing plate 33 and the conveyor belt 10. The transmission assembly is arranged so that when a carrying block 15 moves just below the discharge channel 301, the pushing plate 33 slides toward the discharge channel 301 by a distance the same as the thickness of a PCB board. The pushing plate 33 pushes all the PCB boards inside the storage tank 30 to move a distance the same as the thickness of a PCB board, so that a PCB board located at the end moves to the discharge channel 301 and falls into the carrying slot 151 through the discharge channel 301, thereby realizing automatic addition of PCB boards to the carrying block 15. There is no need for staff to place the PCB boards one by one in the carrying slot 151 opened by the carrying block 15, and the labor required is small.

[0044] The drying component is fixedly arranged on the fixed side plate 101. Two air outlet areas are provided in the length direction of the drying component. A plurality of inclined air outlets 23 are symmetrically arranged in the two air outlet areas. The hot air generated by the drying component contacts the two surfaces of the PCB board in an inclined state. When the PCB board enters the area of ​​the drying component, there is a layer of water film on both surfaces. When the PCB board enters the position directly below the first air outlet area, the air outlet 23 causes the hot air generated by the drying component to contact one surface of the PCB board in an inclined state. The hot air has a downward thrust on the surface of the PCB board, and then has a downward force on the water film on the surface of the PCB board, so that the water film can gather to the bottom of the PCB board to form water droplets and the PCB. The PCB is separated, thereby reducing the need for a large amount of water to be evaporated and removed by hot air. Only a small amount of water needs to be evaporated, shortening the time the PCB board needs to be treated with hot air, and being able to improve the drying effect of the drying device on the PCB board, and also conducive to improving the drying efficiency of the PCB board. After the PCB board passes through the first air outlet area, it enters the second air outlet area. Since the air outlet 23 in the second air outlet area is symmetrically arranged with the air outlet 23 in the first air outlet area, the air outlet 23 in the second air outlet area allows the hot air to contact the other surface of the PCB board in an inclined state. When the PCB board passes through the second air outlet area, the drying process of the PCB board is completed, not only the drying effect is good, but also the drying speed is fast.

[0045] Please refer to Figure 2As shown, the drying component includes a fixed part 20, a fan 21 and a heating rod 22. The fixed part 20 is fixedly installed on the conveyor belt 10 through a support plate. A partition is fixedly installed inside the fixed part 20, which divides the internal cavity of the fixed part 20 into two heating chambers 201. A plurality of heating rods 22 are fixedly arranged inside the two heating chambers 201. The two heating chambers 201 correspond to an air outlet area respectively. The fan 21 is fixedly installed on the upper surface of the fixed part 20, and the air outlet 23 is fixedly arranged on the lower surface of the fixed part 20. The fan 21 and the plurality of heating rods 22 are combined to generate hot air and blow the hot air out in a downwardly inclined state. The air outlet 23 can be set to an angle with the vertical direction controlled between 30° and 60°, so that the blown hot air has a greater downward force on the water film on the surface of the PCB board, increases the speed at which the water film gathers to the bottom of the PCB board to form water droplets, and improves the drying effect and efficiency.

[0046] Please refer to Figure 4 、 Figure 5 、 Figure 8 and Figure 9 As shown, the transmission assembly includes a transmission belt 40, an active plate 11, a driven plate 41 and a connecting piece. The active plates 11 are arranged at equal intervals in the traveling direction of the conveyor belt 10, and the active plates 11 correspond to the bearing blocks 15 one by one. The transmission belt 40 is rotatably mounted on the storage tank 30, and the driven plates 41 are arranged at equal intervals in the traveling direction of the transmission belt 40. The spacing between two adjacent driven plates 41 is adapted to the thickness of a PCB board. The connecting piece is a bolt 43. Two connecting heads 42 are arranged at equal intervals in the traveling direction of the transmission belt 40. A connecting portion 331 is fixedly mounted on one side of the push plate 33. A slide rail 302 is provided on one side of the storage tank 30. One end of the connecting portion 331 is slidably arranged in the slide rail 302. A threaded hole is provided on the connecting head 42, and an end position of the connecting portion 331 is opened. A threaded groove is provided, one end of the bolt 43 passes through the interior of the threaded hole and is inserted into the threaded groove, and is threadedly connected to the threaded hole and the threaded groove, thereby fixing the connecting head 42 to the connecting portion 331. When the supporting block 15 moves to the bottom of the discharge channel 301, the active plate 11 will contact a driven plate 41 at the end position of the transmission belt 40 and push the driven plate 41 to move. The driven plate 41 will drive the transmission belt 40 to move together until the active plate 11 is separated from the driven plate 41. In the process from contact to separation between the active plate 11 and the driven plate 41, the transmission belt 40 is driven to move a distance the same as the thickness of the PCB board, thereby causing the pushing plate 33 to move and push all the PCB boards to move a distance the same as the thickness of a PCB board, so that the PCB board can fall smoothly into the supporting groove 151.

[0047] Please refer to Figure 4 、 Figure 5 、 Figure 8 and Figure 9As shown, threaded columns 12 are fixedly installed at equal intervals in the direction of travel of the conveyor belt 10, and a moving block 14 is slidably provided on the outer surface of the threaded column 12. A slider 141 is fixedly installed on the moving block 14, and a slide groove 121 for sliding the slider 141 is provided on the threaded column 12, so that the moving block 14 can only move along the axial direction of the threaded column 12. The bearing block 15 is fixedly installed on the moving block 14, and a threaded sleeve 13 is threadedly connected to the outer surface of the threaded column 12. One end of the threaded sleeve 13 is rotatably connected to the moving block 14, and the threaded sleeve 13 can be rotated by rotating the threaded sleeve 13. The driving moving block 14 moves in the axial direction of the threaded column 12, thereby changing the position of the bearing block 15. The bearing blocks 15 are provided on the opposite sides of the two conveyor belts 10 and correspond to each other. By rotating the threaded sleeve 13, the spacing between the two threaded sleeves 13 can be changed, so that the two bearing blocks 15 can jointly support PCB boards of different sizes, so that the drying device can dry PCB boards of more sizes, thereby improving the applicability of the drying device. A pair of baffles 16 are fixedly installed on the upper surface of the bearing block 15, and the top of the baffle 16 is aligned with the discharge channel 301. The gap between them is smaller than the width of the PCB board. When the PCB board falls into the carrying groove 151 through the discharge channel 301, the bottom end of the PCB board enters between the two blocking rods 16 before it separates from the discharge channel 301. The two blocking rods 16 limit the PCB board so that the PCB board can fall smoothly into the carrying groove 151 during the falling process, thereby avoiding unnecessary losses caused by damage to the PCB board. A plurality of balls 161 are rotatably mounted on the opposite surfaces of the two blocking rods 16. More than half of the volume of the balls 161 is located between the two blocking rods 16. The PCB board is located inside the baffle rod 16, and the rest is located outside the baffle rod 16. After the PCB board is located between the two baffle rods 16, multiple balls 161 are attached to the outer surface of the PCB board, so that the PCB board has higher stability during drying, and avoids the PCB board from being separated from the supporting block 15 due to the force of hot air, causing damage to the PCB board. The balls 161 are used to limit the PCB board. The area of ​​contact between the balls 161 and the PCB board is small, and the area covered by the PCB board is very small. Therefore, it has the advantage of having minimal impact on the drying effect of the PCB board.

[0048] Please refer to Figure 8 and Figure 10 As shown, a pair of baffles 31 are slidably provided in the width direction of the storage tank 30, and a threaded rod 32 is rotatably installed on the storage tank 30. One end of the threaded rod 32 passes through the interior of the two baffles 31 and is threadedly connected to the baffles 31, which can make the two baffles 31 move relative to each other or move away from each other, and change the distance between the two baffles 31. When the drying device dries PCB boards of different sizes, it only needs to change the distance between the two baffles 31.

[0049] Please refer to Figure 1As shown, the conveyor belt 10 has a vertical section and a horizontal section, and a picking belt 50 is provided at the discharge end of the conveyor belt 10. One end of the picking belt 50 is located on the vertical section of the conveyor belt 10, and the picking belt 50 is arranged between the two conveyor belts 10. The picking belt 50 and the threaded columns 12 on the two conveyor belts 10 are staggered. The picking splints 51 are arranged at equal intervals in the traveling direction of the picking splints 51. When the PCB board moves to the vertical section of the discharge end of the conveyor belt 10 with the supporting block 15, the PCB board is located directly above the picking splint 51. After the supporting block 15 passes over the picking belt 50, the PCB board is transferred to the picking belt 50, and then the picking belt 50 moves to transport the PCB board to the corresponding position or process.

[0050] Working principle: When using this device to dry PCB boards, the staff will store the cleaned PCB boards in the storage tank 30, start the conveyor belt 10 and the drying assembly, and when the carrying block 15 moves to the bottom of the discharge channel 301, the active plate 11 will push a driven plate 41 at the end of the transmission belt 40 to rotate the transmission belt 40. Since the transmission belt 40 is fixedly connected to the push plate 33 through a connecting piece, the active plate 11 and the driven plate 41 will push the transmission belt 40 to move a distance equal to the thickness of a PCB board during the process from contact to separation, so that a PCB board passes through the discharge channel 301 and falls into the position directly below the discharge channel 301. In the square carrying slot 151, two conveyor belts 10 transport the PCB board to the area of ​​the drying assembly. The PCB board in a standing state first enters the first air outlet area of ​​the drying assembly. The hot air is blown obliquely from the air outlet 23 onto one surface of the PCB board, thereby exerting a downward thrust on the water film on the surface of the PCB board, causing the water film to gather toward the bottom end of the PCB board, forming water droplets that separate from the PCB board, and then enter the second air outlet area. The oblique hot air from the second air outlet area contacts the other surface of the PCB board. During this process, the water film on the PCB board is subjected to force and gathers to form water droplets that separate from the PCB board, thereby reducing the difficulty of drying, achieving better drying effect, and increasing drying efficiency.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A PCB board drying device, characterized in that: include: A pair of conveyor belts (10) are provided, one end of which in the length direction is a feed end and the other end is a discharge end; bearing blocks (15) are provided on opposite sides of the two conveyor belts (10), and the bearing blocks (15) are distributed at equal intervals in the direction of travel of the conveyor belts (10); A storage tank (30) is fixedly mounted at the feed end of the conveyor belt (10), a discharge channel (301) adapted to the thickness of the PCB board is opened at one end of the storage tank (30), the discharge channel (301) is arranged just above the feed end of the conveyor belt (10), a push plate (33) is slidably mounted inside the storage tank (30), a transmission assembly is arranged between the push plate (33) and the conveyor belt (10), and the transmission assembly is arranged so that when a bearing block (15) moves to just below the discharge channel (301), the push plate (33) slides toward the discharge channel (301) by a distance equal to the thickness of a PCB board; A drying component is fixedly mounted on the fixed side plate (101), and two air outlet areas are provided in the length direction of the drying component. A plurality of air outlets (23) in an inclined state are symmetrically arranged in the two air outlet areas, so that the hot air generated by the drying component contacts the two surfaces of the PCB board in an inclined state; The transmission assembly includes a transmission belt (40), an active plate (11), a driven plate (41) and a connecting piece, wherein the active plates (11) are arranged at equal intervals in the direction of travel of the conveyor belt (10), and the active plates (11) correspond one to one with the bearing blocks (15), the transmission belt (40) is rotatably mounted on the storage tank (30), the driven plates (41) are arranged at equal intervals in the direction of travel of the transmission belt (40), the spacing between two adjacent driven plates (41) is adapted to the thickness of a PCB board, and the transmission belt (40) is fixedly connected to the push plate (33) through the connecting piece; The connecting member is a bolt (43), two connecting heads (42) are provided at equal intervals in the direction of travel of the transmission belt (40), a connecting portion (331) is fixedly installed on one side of the pushing plate (33), and the bolt (43) fixedly connects the connecting head (42) and the connecting portion (331); Threaded columns (12) are fixedly installed at equal intervals in the direction of travel of the conveyor belt (10), a moving block (14) is slidably provided on the outer surface of the threaded column (12), the bearing block (15) is fixedly installed on the moving block (14), a threaded sleeve (13) is threadedly connected to the outer surface of the threaded column (12), and one end of the threaded sleeve (13) is rotatably connected to the moving block (14); A pair of baffles (16) are fixedly mounted on the upper surface of the bearing block (15), and the distance between the top ends of the baffles (16) and the discharge channel (301) is smaller than the width of the PCB board; A material taking belt (50) is provided at the discharge end of the conveyor belt (10), and the material taking belt (50) is provided between two conveyor belts (10). Material taking clamping plates (51) are provided at equal intervals in the traveling direction of the material taking belt (50).

2. A PCB board drying device according to claim 1, characterized in that: The drying component comprises a fixing portion (20), a fan (21) and a heating rod (22); the fixing portion (20) is fixedly mounted on the conveyor belt (10); the heating rod (22) is fixedly mounted in the internal cavity of the fixing portion (20); the fan (21) is fixedly mounted on the upper surface of the fixing portion (20); and the air outlet (23) is fixedly arranged on the lower surface of the fixing portion (20).

3. A PCB board drying device according to claim 1, characterized in that: A plurality of balls (161) are rotatably mounted on the opposite surfaces of the two blocking rods (16).

4. A PCB drying device according to claim 1, characterized in that: A pair of baffles (31) are slidably provided in the width direction of the storage tank (30), and a threaded rod (32) is rotatably installed on the storage tank (30). One end of the threaded rod (32) passes through the interior of the two baffles (31) and is threadedly connected to the baffles (31), so that the two baffles (31) can move relative to each other or move away from each other.

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