PCB baking device

Abstract

The utility model relates to the technical field of electronic accessory processing, and discloses a PCB circuit board baking device, which comprises a box body, a pair of dewatering rollers is rotatably connected to each of the two sides in the box body, a plurality of pairs of baking rollers are arranged between the two pairs of dewatering rollers, the rear ends of the baking rollers are rotatably connected with the interior of the box body, and the baking rollers are rotatably connected with the interior of the box body. Each pair of baking rollers are symmetrically distributed, and through openings are formed in the middles of the two sides of the box body. According to the utility model, large-particle water drops on the surfaces are wiped through the water removal rollers, the situation that the large-particle water drops cannot be evaporated immediately in the baking process and the temperature of the water drops is too high to cause high-temperature damage to the circuit board is avoided, and then the surfaces of the two sides of the circuit board are uniformly baked and dehumidified under the conveying of the baking rollers on the upper and lower sides in cooperation with the hot air conveying of the hot-air blower; and finally, the two water removal rollers at the outlet further wipe and absorb moisture on the surface of the circuit board, so that the moisture removal effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic accessory processing, in particular to a baking device for a PCB circuit board. Background Art

[0002] During the processing of a PCB circuit board, it needs to be cleaned. After cleaning, water stains will adhere to the surface of the PCB circuit board. If it cannot be quickly removed, it may affect the processing time of the PCB circuit board. However, at present, the structures of some PCB circuit board drying devices are relatively simple, often lacking a preliminary water removal structure and directly baking. When there are large water droplets, they may not be evaporated in time, and the water becomes hot, causing damage to the PCB circuit board. It not only cannot quickly remove the water on the PCB circuit board, but also causes uneven drying during drying. Summary of the Utility Model

[0003] To make up for the above deficiencies, the utility model provides a baking device for a PCB circuit board, aiming to improve the problems that large water droplets may cause damage to the circuit board and uneven drying during the baking and dehumidification of the PCB circuit board in the prior art.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A baking device for a PCB circuit board, including a box body. On both sides inside the box body, a pair of water removal rollers are rotatably connected. Between the two pairs of water removal rollers, several pairs of baking rollers are arranged. The rear ends of the baking rollers are rotatably connected to the inside of the box body. Each pair of baking rollers is symmetrically distributed. On both sides of the middle of the box body, through openings are provided. One pair of water removal rollers corresponds to one of the through openings. The outer walls of the baking rollers are evenly distributed with several air outlet holes. The rear end of the left water removal roller is fixedly connected with a gear and a pulley. The two gears are meshed with each other. The rear end of the baking roller is fixedly connected with a pulley. Adjacent pulleys are connected by a belt. The middle of the rear side of the box body is fixedly connected with a rear cover. On the top of the rear cover, a hot air blower is installed. The output end of the hot air blower is connected to the inside of the baking roller through an air duct. The air duct is rotatably connected to the baking roller. The rear end of one of the left water removal rollers is connected to a motor, and the motor is installed on the rear side of the rear cover.

[0005] As a further description of the above technical solution:

[0006] The middle part of the baking roller is a groove, and the air outlet holes are arranged at the groove part.

[0007] As a further description of the above technical solution:

[0008] The outer surface of the water removal roller is made of a water-absorbing material, and a plurality of convex points are evenly arranged on the outside of the water removal roller.

[0009] As a further description of the above technical solution:

[0010] The hot air blower is a baking hot air blower.

[0011] As a further description of the above technical solution:

[0012] A receiving table is fixedly connected to the right side of the box body directly below the through opening.

[0013] As a further description of the above technical solution:

[0014] An observation window is arranged on the front side of the box body, and the observation window is made of transparent explosion-proof material.

[0015] The utility model has the following beneficial effects:

[0016] In the utility model, first, the PCB circuit board is put into the box body through the through opening on one side, and the large water droplets on the surface are wiped by the two water removal rollers at the entrance, so as to avoid the large water droplets not being immediately evaporated during the baking process and the high temperature of the water droplets causing high-temperature damage to the circuit board. Secondly, under the transmission of the baking rollers on the upper and lower sides and the hot air delivery of the hot air blower, the two sides of the circuit board are evenly baked and dehumidified, improving the baking efficiency. Finally, the two water removal rollers at the outlet further wipe and absorb moisture on the surface of the circuit board, improving the dehumidification effect. Description of the drawings

[0017] Figure 1 is a perspective view of a PCB circuit board baking device proposed by the utility model;

[0018] Figure 2 is a schematic diagram of the internal structure of the box body of a PCB circuit board baking device proposed by the utility model;

[0019] Figure 3 is a schematic diagram of the rear side of the box body of a PCB circuit board baking device proposed by the utility model;

[0020] Figure 4 is a schematic diagram of the structure of the baking roller and the water removal roller of a PCB circuit board baking device proposed by the utility model.

[0021] Legend description:

[0022] 1. Box body; 2. Receiving table; 3. Through opening; 4. Water removal roller; 5. Baking roller; 6. Convex point; 7. Air outlet hole; 8. Rear cover; 9. Hot air blower; 10. Motor; 11. Air duct; 12. Gear; 13. Pulley. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Referring to Figures 1-4 , an embodiment provided by the present utility model: A baking device for a PCB circuit board, including a box body 1. A pair of water removal rollers 4 are rotatably connected to both sides inside the box body 1. A number of pairs of baking rollers 5 are arranged between the two pairs of water removal rollers 4. The rear end of the baking roller 5 is rotatably connected to the inside of the box body 1. Each pair of baking rollers 5 is symmetrically distributed. Through openings 3 are provided in the middle of both sides of the box body 1. A pair of water removal rollers 4 corresponds to one of the through openings 3. The water removal rollers 4 are used to directly wipe the moisture, and the baking rollers 5 are used to evenly bake the surface of the circuit board. When the circuit board passes through the baking rollers 5, its two side edges are clamped by the two ends of the baking rollers 5 for conveying. A number of air outlet holes 7 are evenly distributed on the outer wall of the baking roller 5. The rear end of the left water removal roller 4 is fixedly connected with a gear 12 and a pulley 13. The two gears 12 are meshed with each other. The rear end of the baking roller 5 is fixedly connected with a pulley 13. The adjacent pulleys 13 are connected by a belt. The middle of the rear side of the box body 1 is fixedly connected with a rear cover 8. A hot air blower 9 is installed on the top of the rear cover 8. The output end of the hot air blower 9 is connected to the inside of the baking roller 5 through an air duct 11. The hot air generated by the hot air blower 9 enters the inside of the baking roller 5 through the air duct 11 and finally bakes the circuit board through the air outlet holes 7. The air duct 11 is rotatably connected to the baking roller 5. The rear end of one of the left water removal rollers 4 is connected with a motor 10. The motor 10 is installed on the rear side of the rear cover 8. The PCB circuit board is put into the inside of the box body 1 from the left through opening 3. The motor 10 is started, so that one water removal roller 4 rotates. Through the transmission of the gear 12, the other water removal roller 4 is driven to rotate. The circuit board is conveyed under the rotation of the two water removal rollers 4. The circuit board passes through the two water removal rollers 4, and large particle water droplets are sucked out by the water-absorbing material on its surface, avoiding damage caused by the inability of large particle water droplets to evaporate at high temperature and improving the baking quality. At the same time, under the transmission of the belt and the pulley 13, the baking roller 5 rotates accordingly. The circuit board passes through between each pair of baking rollers 5 in turn. At this time, the hot air blower 9 is started, and the generated hot air enters the baking roller 5 through the air duct 11 and is released to the outside through the air outlet holes 7 to bake and dry the upper and lower surfaces of the passing circuit board more evenly, improving the baking efficiency. Finally, after the baking is completed, the circuit board is further wiped by another pair of water removal rollers 4, making the removal of moisture more thorough and improving the dehumidification effect.

[0025] The middle part of the baking roller 5 is a groove, and the air outlet holes 7 are arranged at the groove part, so that there is a certain gap between the air outlet holes 7 and the PCB circuit board, which is convenient for hot air to pass through for baking. The outer surface of the water removal roller 4 is made of water-absorbing material, which is beneficial to absorb large water droplets. A plurality of bumps 6 are evenly arranged outside the water removal roller 4. The hot air blower 9 is a baking hot air blower, which is composed of three main parts: a blower, a heater, and a control circuit, and can be automatically controlled. A receiving table 2 is fixedly connected to the right side of the box body 1 directly below the through port 3 for placing the dried PCB circuit board to facilitate cooling. An observation window is arranged on the front side of the box body 1, and the observation window is made of transparent explosion-proof material, which is convenient for observation and has a certain safety factor.

[0026] Working principle: The PCB circuit board is put into the interior of the box body 1 from the left through port 3. The motor 10 is started, so that one water removal roller 4 rotates. Driven by the gear 12, the other water removal roller 4 is driven to rotate. The circuit board is conveyed under the rotation of the two water removal rollers 4. The large water droplets on the circuit board are sucked out by the water-absorbing material on the surface of the two water removal rollers 4, avoiding the damage caused by the inability of large water droplets to evaporate at high temperature and improving the baking quality. At the same time, under the transmission of the belt and the belt pulley 13, the baking roller 5 rotates accordingly. The circuit board passes through between each pair of baking rollers 5 in turn. At this time, the hot air blower 9 is started, and the hot air generated enters the baking roller 5 through the air duct 11 and is released to the outside through the air outlet holes 7 to bake and dry the upper and lower surfaces of the passing circuit board, making it more uniform and improving the baking efficiency. Finally, after the baking is completed, the circuit board is further wiped by another pair of water removal rollers 4, making the moisture removal more thorough and improving the dehumidification effect.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A PCB circuit board baking device, comprising a box (1), characterized in that: A pair of dewatering rollers (4) are rotatably connected to both sides of the interior of the box (1), and a plurality of pairs of baking rollers (5) are arranged between the two pairs of dewatering rollers (4). The rear ends of the baking rollers (5) are rotatably connected to the interior of the box (1), and each pair of baking rollers (5) are symmetrically distributed. Through holes (3) are arranged in the middle of both sides of the box (1), and a pair of dewatering rollers (4) corresponds to one of the through holes (3). A plurality of air outlet holes (7) are evenly distributed on the outer wall of the baking rollers (5). A gear (12) and a pulley (13) are fixedly connected to the rear ends of the dewatering rollers (4) on the left side. The gears (12) are meshed with each other, a pulley (13) is fixedly connected to the rear end of the baking roller (5), and adjacent pulleys (13) are connected by belts. A rear cover (8) is fixedly connected to the middle of the rear side of the box body (1), and a hot air blower (9) is installed on the top of the rear cover (8). The output end of the hot air blower (9) is connected to the inside of the baking roller (5) through an air delivery pipe (11), and the air delivery pipe (11) is rotatably connected to the baking roller (5). The rear end of one of the water removal rollers (4) on the left side is connected to a motor (10), and the motor (10) is installed on the rear side of the rear cover (8).

2. A PCB circuit board baking device according to claim 1, characterized in that: The middle portion of the baking roller (5) is a groove, and the air outlet holes (7) are arranged in the groove.

3. A PCB circuit board baking device according to claim 1, characterized in that: The outer surface of the dewatering roller (4) is made of a water-absorbing material, and a plurality of convex points (6) are evenly arranged on the outside of the dewatering roller (4).

4. A PCB circuit board baking device according to claim 1, characterized in that: The hot air blower (9) is a baking hot air blower.

5. A PCB circuit board baking device according to claim 1, characterized in that: A receiving platform (2) is fixedly connected to the right side of the box body (1) just below the through opening (3).

6. A PCB circuit board baking device according to claim 1, characterized in that: The front side of the box body (1) is provided with an observation window, and the observation window is made of transparent explosion-proof material.

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