Anti-oxidation treatment device for PCB circuit board

Abstract

The invention relates to the technical field of oxidation treatment, and in particular to an anti-oxidation treatment device for a PCB circuit board, comprising a bottom cabin, an oxidation cabin being installed at the middle of the top surface of the bottom cabin, a feed cabin being fixed on the left side of the top surface of the bottom cabin, a discharge cabin being fixed on the right side of the top surface of the bottom cabin, the left end of the oxidation cabin being communicated with the feed cabin, the right side of the oxidation cabin being communicated with the discharge cabin, and feeding wheel trains being installed in the feed cabin and the discharge cabin; a material turning mechanism being installed in the oxidation cabin, the material turning mechanism comprising a mounting frame installed in the oxidation cabin, the mounting frame gradually tilting upward from the left end to the right, the material turning mechanism also comprising a material roller group fixed in the mounting frame, a turning function, low cost, no electrical components involved, and even less complex circuits involved, simple structure, easy to implement action, and no additional loss.

Description

Technical Field

[0001] The invention relates to the technical field of oxidation treatment, and in particular to an anti-oxidation treatment device for a PCB circuit board. Background Art

[0002] During the processing of circuit boards, it is usually necessary to perform anti-oxidation treatment to improve the performance of the circuit boards. The commonly used anti-oxidation medium is an antioxidant. It is sprayed onto the PCB board through a nozzle to form an anti-gasification film on the PCB board.

[0003] In order to make both sides of the PCB board undergo anti-oxidation treatment, a Chinese patent with application number 202321249887.9 discloses an anti-oxidation treatment device for a PCB circuit board, including a pre-treatment box and a conveyor belt, the conveyor belt is fixedly installed through the pre-treatment box, two sets of pre-treatment equipment and a flip device are arranged in the pre-treatment box, and the flip device is arranged in the middle of the pre-treatment box. The anti-oxidation treatment of the PCB circuit board is completed by the flip device.

[0004] However, the flipping device is composed of an electric cylinder, a servo motor and a vacuum pump. During the flipping action, the electric cylinder and the servo motor are powered by electricity, and the vacuum pump is driven by electricity to provide negative pressure to the suction cup to absorb the circuit board. The flipping device is not only complex in structure, but also needs to be driven by the circuit when working, which causes losses and increases costs. Summary of the invention

[0005] In order to solve the above problems, the present invention provides the following technical solutions:

[0006] An anti-oxidation treatment device for a PCB circuit board comprises a bottom cabin, an oxidation cabin is installed in the middle of the top surface of the bottom cabin, a feed cabin is fixed on the left side of the top surface of the bottom cabin, and a discharge cabin is fixed on the right side of the top surface of the bottom cabin, the left end of the oxidation cabin is communicated with the feed cabin, and the right side of the oxidation cabin is communicated with the discharge cabin, and a feeding wheel system is installed in the feed cabin and the discharge cabin;

[0007] A material turning mechanism is installed in the oxidation chamber, and the material turning mechanism includes a mounting frame installed in the oxidation chamber, and the mounting frame gradually tilts upward from the left end to the right. The material turning mechanism also includes a material roller group fixed in the mounting frame, and the material roller group is composed of a plurality of material roller units, and the plurality of material roller units are distributed on the mounting frame from left to right according to the tilt of the mounting frame. The material turning mechanism also includes an auxiliary plate installed in the bottom chamber, and the auxiliary plate is located on the right side of the material roller unit. The auxiliary plate is tilted in the lower left direction, and a material turning gap tilted to the lower left is formed between the top of the mounting frame and the auxiliary plate. An injection pipe is installed in the oxidation chamber, and the injection pipe is divided into two groups. The two injection pipes Distributed on the left and right sides of the turning mechanism, the feeding wheel system is divided into two groups on the left and right sides, and the two groups of feeding wheel systems are composed of a number of conveying wheel units. The left and right feeding wheel systems are distributed on the left and right sides of the turning mechanism. The conveying wheel unit on the left is distributed from the feeding side of the feeding cabin to the oxidation cabin, and is close to the left side of the turning mechanism; the conveying wheel unit on the right is distributed from the discharging side of the discharging cabin to the oxidation cabin, and is close to the bottom right side of the auxiliary plate; an auxiliary material receiving assembly is provided in the oxidation cabin, and the material receiving assembly includes a tilting rod transferred to the oxidation cabin, and the left end of the tilting rod is warped upward and enters between the left side of the mounting frame and the conveying wheel unit.

[0008] As further preferred, a liquid collecting cover is provided on the top of the oxidation chamber, and the top ends of the left and right groups of injection pipes pass through the top of the oxidation chamber and are connected to the liquid collecting cover.

[0009] As a further preference, the turning mechanism also includes a baffle plate arranged on the right end of the mounting frame, the baffle plate is inclined to the lower left, the baffle plate is parallel to the auxiliary plate, and the bottom end of the baffle plate is close to the conveying wheel unit on the right side.

[0010] As a further preference, the nozzle of the spray pipe is vertically downward, and the spray pipe on the left is distributed from left to right close to the left end of the tilting rod.

[0011] As a further preferred embodiment, the tilting rod is composed of a plurality of unit rods evenly distributed front and back, the right ends of the unit rods are commonly connected to a fixing rod, the front and rear ends of the fixing rod are connected with a swivel seat, the two swivel seats are respectively fixed on the front and rear inner walls of the oxidation chamber, a driven cam is installed on the fixing rod, a driving wheel is installed on the oxidation chamber, an active cam is provided on the outer circumferential surface of the driving wheel, the active cam rotates with the driving wheel, the driven cam is located on the rotation trajectory of the active cam, a driven pulley is installed on the back of the driving wheel, a driving pulley is installed on one of the material roller units, the driving pulley is connected to the driven pulley through a conveyor belt transmission, and the wheel diameter of the driven pulley is larger than the wheel diameter of the driving pulley.

[0012] As further preferred, the active cam and the driven cam are rubber wheels, a limiting rod is fixed on the inner wall of the oxidation chamber, and the limiting rod is located at the bottom of the tilting rod.

[0013] As further preferred, the outer end of the material roller unit extends out of the oxidation chamber, the outer end of the shaft where the conveying wheel unit is located extends out of the oxidation chamber, and the outer ends of the shaft where the material roller unit and the conveying wheel unit are located are drivingly connected together.

[0014] As a further preference, a plurality of material roller units are commonly connected to a conveyor belt.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Compared with the prior art, the antioxidant treatment device of the present invention is also provided with a flipping mechanism. When the circuit board is fed to the right under the drive of the conveying wheel unit, the fixed rod in the flipping mechanism leads all the tilting rods to deflect clockwise. When the circuit board enters this position, the left end of the tilting rod deflects upward, so that the right end of the circuit board is lifted up in advance, which assists the right end of the circuit board to be introduced into the conveyor belt in the flipping mechanism, and is continuously conveyed to the right through the conveyor belt. Since the right end of the conveyor belt is tilted upward, when the circuit board is conveyed to the right end of the conveyor belt, it reaches the mounting bracket. The right end of the circuit board, while the conveyor belt continues to convey to the right, eventually causes the circuit board to deflect to the lower right of the right end of the mounting frame, and the original top surface flips onto the auxiliary plate. After being conveyed by the auxiliary plate at an angle to the lower left, the original top surface becomes bottom-facing and falls onto the conveying wheel unit on the right. The original bottom surface becomes top-facing and after being conveyed to the right by the conveying wheel unit, it reaches the bottom of the right injection pipe, and is conveyed and discharged in the direction of the discharge bin. The injection pipe on the right sprays antioxidants on the top surface of the circuit board. After the circuit board is discharged, both the upper and lower surfaces are treated with antioxidants. In the present invention, in order to flip the circuit board over, the flipping mechanism used does not involve electrical components. Compared with the prior art, a large number of electrical components are used to make the flipping mechanism, which not only requires current to be provided to these electrical components during operation, but also involves complex control circuits. The flipping function in the present invention has a lower cost, does not involve electrical components, and does not involve complex circuits. It has a simple structure, is easy to implement, and does not generate additional losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of an anti-oxidation treatment device for a PCB circuit board provided in an embodiment of the present invention from a front side perspective;

[0018] Figure 2 A schematic diagram of an anti-oxidation treatment device for a PCB circuit board provided in an embodiment of the present invention from a rear side perspective;

[0019] Figure 3A schematic diagram of the interior of a PCB circuit board anti-oxidation treatment device after being cut open provided by an embodiment of the present invention;

[0020] Figure 4 An anti-oxidation treatment device for a PCB circuit board provided in an embodiment of the present invention comprises Figure 3 The enlarged schematic diagram of the A part is shown;

[0021] Figure 5 A schematic diagram of a material roller group in an anti-oxidation treatment device for a PCB circuit board provided in an embodiment of the present invention;

[0022] Figure 6 A side plan view of an anti-oxidation treatment device for a PCB circuit board provided in an embodiment of the present invention;

[0023] Figure 7 An anti-oxidation treatment device for a PCB circuit board provided in an embodiment of the present invention comprises Figure 6 The side view of the section B is shown below;

[0024] Figure 8 An anti-oxidation treatment device for a PCB circuit board provided in an embodiment of the present invention comprises Figure 7 Enlarged schematic diagram of the C part drawn out.

[0025] In the figure: 1. bottom cabin; 2. oxidation cabin; 3. feed cabin; 4. discharge cabin; 5. feed wheel system; 6. mounting frame; 7. material roller group; 8. material roller unit; 9. auxiliary plate; 10. baffle; 11. injection pipe; 12. turning gap; 13. conveying wheel unit; 14. tilting rod; 16. liquid collecting cover; 17. fixing rod; 18. swivel seat; 19. driven cam; 20. driving wheel; 21. driving cam; 22. driven pulley; 23. driving pulley; 24. conveyor belt; 25. limit rod. DETAILED DESCRIPTION

[0026] The above and other embodiments and advantages of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0027] In one embodiment, Figure 1-Figure 8 As shown: This embodiment provides an anti-oxidation treatment device for a PCB circuit board, comprising a bottom cabin 1, an oxidation cabin 2 is installed in the middle of the top surface of the bottom cabin 1, a feed cabin 3 is fixed on the left side of the top surface of the bottom cabin 1, and a discharge cabin 4 is fixed on the right side of the top surface of the bottom cabin 1, the left end of the oxidation cabin 2 is communicated with the feed cabin 3, and the right side of the oxidation cabin 2 is communicated with the discharge cabin 4, and a feeding wheel system 5 is installed in the feed cabin 3 and the discharge cabin 4;

[0028] A material turning mechanism is installed in the oxidation cabin 2, and the material turning mechanism includes a mounting frame 6 installed in the oxidation cabin 2, and the mounting frame 6 gradually tilts upward from the left end to the right. The material turning mechanism also includes a material roller group 7 fixed in the mounting frame 6, and the material roller group 7 is composed of a plurality of material roller units 8. A conveyor belt 24 is commonly connected to the plurality of material roller units 8. The plurality of material roller units 8 are distributed on the mounting frame 6 from left to right according to the tilt of the mounting frame 6. The material turning mechanism also includes an auxiliary plate 9 installed in the bottom cabin 1, and the auxiliary plate 9 is located on the right side of the material roller unit 8. The auxiliary plate 9 is tilted in the lower left direction, and a material turning gap 12 tilted in the lower left direction is formed between the top of the mounting frame 6 and the auxiliary plate 9. An injection pipe 11 is installed in the oxidation cabin 2. The injection pipe 11 is used to inject There are two groups of tubes 11, and the two injection tubes 11 are distributed on the left and right sides of the turning mechanism. The feeding wheel system 5 is divided into two groups on the left and right sides. The two groups of feeding wheel systems 5 are composed of a plurality of conveying wheel units 13. The left and right feeding wheel systems 5 are distributed on the left and right sides of the turning mechanism. The conveying wheel unit 13 on the left is distributed from the feeding side of the feeding chamber 3 to the oxidation chamber 2, and is close to the left side of the turning mechanism; the conveying wheel unit 13 on the right is distributed from the discharging side of the discharging chamber 4 to the oxidation chamber 2, and is close to the bottom right side of the auxiliary plate 9; an auxiliary material receiving assembly is provided in the oxidation chamber 2, and the material receiving assembly includes a tilting rod 14 transferred to the oxidation chamber 2, and the left end of the tilting rod 14 is warped upward and enters between the left side of the mounting frame 6 and the conveying wheel unit 13.

[0029] A liquid collecting cover 16 is provided on the top of the oxidation chamber 2, and the top ends of the left and right groups of injection pipes 11 pass through the top of the oxidation chamber 2 and are connected to the liquid collecting cover 16. The material turning mechanism also includes a baffle 10 arranged on the right end of the mounting frame 6, the baffle 10 is tilted to the lower left, the baffle 10 is parallel to the auxiliary plate 9, and the bottom end of the baffle 10 is close to the conveying wheel unit 13 on the right. The nozzles of the injection pipes 11 are vertically downward, and the injection pipes 11 on the left are distributed from left to right to the left end close to the tilting rod 14.

[0030] Working principle and effect: When in use, put the circuit board on the conveying wheel unit 13 on the left, and send it into the feed cabin 3 after rolling through the conveying wheel unit 13 on the left, and then enter the oxidation cabin 2 from the feed cabin 3. After the antioxidant is sprayed by the injection pipe 11 on the left side of the oxidation cabin 2, an antioxidant film is formed on its upper surface. When the conveying wheel unit 13 rolls the circuit board to continue to convey it to the right, a certain feeding wheel unit 13 rotates with a certain material roller unit 8 through the belt transmission relationship, and a certain material roller unit 8 rotates with all the material roller units 8 through the conveyor belt 24, and the conveyor belt 24 It is transported from the low end to the high end, and at the same time, a certain material roller unit 8 rotates with the driving pulley 23, and the driving pulley 23 rotates with the driven pulley 22 through the belt transmission relationship, and the driven pulley 22 rotates with the driving wheel 20 (counterclockwise rotation), and the driving wheel 20 rotates with the driving cam 21 relative to the driven cam 19. Every time the driving cam 21 rotates to contact with the driven cam 19, it provides downward pressure to the driven cam 19, forcing the driven cam 19 to deflect clockwise, and the driven cam 19 deflects the fixed rod 17 clockwise, and the fixed rod 17 With all the tilting rods 14 deflected clockwise, the left end of the tilting rod 14 deflects upward at the same time. When the circuit board enters this position, driven by the upward deflection of the left end of the tilting rod 14, the right end of the circuit board is lifted up in advance when it is about to reach the left side (low end) of the conveyor belt 24, which assists the right end of the circuit board to be introduced into the left side of the conveyor belt 24 and continues to be conveyed to the right through the conveyor belt 24. Since the right end of the conveyor belt 24 is tilted upward, when the circuit board is conveyed to the right end of the conveyor belt 24, it reaches the right end of the mounting frame 6, and the conveyor belt 24 continues to convey to the right, and finally After the circuit board is deflected to the lower right of the right end of the mounting frame 6, the original top surface is flipped onto the auxiliary plate 9. After being transported by the auxiliary plate 9 at an angle to the lower left, the original top surface becomes bottom surface downward, slides down to the left through the turning gap 12 and is flattened on the conveying wheel unit 13 on the right side. The original bottom surface becomes top surface upward and after being transported to the right by the conveying wheel unit 13, it reaches the bottom of the right injection pipe 11, and is transported and discharged in the direction of the discharge chamber 4. The right injection pipe 11 sprays antioxidants on the top surface of the circuit board. After the circuit board is discharged, both the upper and lower surfaces are treated with antioxidants. In the present invention, in order to turn the circuit board over, the flipping mechanism used does not involve electrical components. Compared with the prior art, a large number of electrical components are used to make the flipping mechanism, which not only requires current to be provided to these electrical components during operation, but also involves complex control circuits. The flipping function in the present invention has a lower cost, does not involve electrical components, and does not involve complex circuits. It has a simple structure, is easy to implement, and does not generate additional losses.

[0031] like Figure 7 , Figure 8As shown, the active cam 21 and the driven cam 19 are rubber wheels, and a limit rod 25 is fixed on the inner wall of the oxidation chamber 2. The limit rod 25 is located at the bottom of the tilting rod 14. When the active cam 21 and the driven cam 19 are in contact, damage is reduced and the service life is increased. When the active cam 21 rotates to separate from the driven cam 19, the tilting rod 14 falls back and falls on the limit rod 25, waiting for the next trigger. The left end bending portion of the tilting rod 14 is flexible. Even if the circuit board contacts the left end of the tilting rod 14 when being conveyed to the right, the left end of the tilting rod 14 will automatically bend and will not cause any obstacle to the conveying of the circuit board to the right. When the circuit board reaches the bottom of the left end of the tilting rod 14, the left end of the tilting rod 14 tilts upward, and can still assist the right end of the circuit board to be led to the conveyor belt 24 through the lifting action.

[0032] like Figure 3 , Figure 4 As shown, the tilting rod 14 is composed of a number of unit rods evenly distributed front and back, the right ends of the unit rods are commonly connected to a fixed rod 17, the front and rear ends of the fixed rod 17 are connected with a swivel seat 18, the two swivel seats 18 are respectively fixed on the front and rear inner walls of the oxidation chamber 2, a driven cam 19 is installed on the fixed rod 17, a driving wheel 20 is installed on the oxidation chamber 2, an active cam 21 is provided on the outer circumferential surface of the driving wheel 20, the active cam 21 rotates with the driving wheel 20, the driven cam 19 is located on the rotation track of the active cam 21, a driven pulley 22 is installed on the back of the driving wheel 20, one of the material roller units 8 is installed with a driving pulley 23, the driving pulley 23 is connected to the driven pulley 22 through a conveyor belt transmission, and the wheel diameter of the driven pulley 22 is larger than the wheel diameter of the driving pulley 23. The active pulley 23 rotates multiple times to drive the driven pulley 22 to rotate one circle, which is used to control the movement frequency of the tilting rod 14. Because the circuit board is relatively long, there is still a journey when the circuit board enters the left end of the tilting rod 14 and is transported toward the left end of the conveyor belt 24. During this transportation process, as long as the bottom surface of the circuit board is located above the left end of the tilting rod 14, the left end of the tilting rod 14 can be tilted upward to lift the right end of the circuit, so that the right end of the bottom surface of the circuit board can be sent to the conveyor belt 24 in advance. After the conveyor belt 24 is transported to the right, and the friction relationship of the belt surface and the inertial carrying effect are used, after the circuit board is received, the circuit board can be effectively transported in the upper right direction.

[0033] like Figure 2As shown, the outer end of the material roller unit 8 extends outside the oxidation chamber 2, and the outer end of the shaft where the conveying wheel unit 13 is located extends outside the oxidation chamber 2. The outer ends of the shafts where the material roller unit 8 and the conveying wheel unit 13 are located are connected together by transmission, and the conveying wheel unit 13 rotates synchronously with the material roller unit 8 and shares a common power. For example, a motor for first driving the material roller unit 8 to rotate is installed on the bottom chamber 1, or a motor for first driving the conveying wheel unit 13 to rotate is installed. Through the above transmission relationship, either the material roller unit 8 applies power to the conveying wheel unit 13, or the conveying wheel unit 13 applies power to the material roller unit 8. The installation method and structure of the motor are prior art and will not be repeated.

[0034] The above orientation designations do not represent the specific orientations of the components in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme, and the orientations are described relatively with reference to the figures. In essence, the specific orientations of the components are described according to their actual installation and actual use as well as the customary orientations of technicians in this field. This is hereby explained.

[0035] The specific implementation methods described above further describe the invention purpose, technical solutions, and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-oxidation treatment device for a PCB circuit board, characterized in that: The invention comprises a bottom tank (1), an oxidation tank (2) is installed in the middle of the top surface of the bottom tank (1), a feed tank (3) is fixed on the left side of the top surface of the bottom tank (1), and a discharge tank (4) is fixed on the right side of the top surface of the bottom tank (1), the left end of the oxidation tank (2) is communicated with the feed tank (3), and the right side of the oxidation tank (2) is communicated with the discharge tank (4), and a feeding wheel system (5) is installed in the feed tank (3) and the discharge tank (4); The oxidation chamber (2) is provided with a material turning mechanism, the material turning mechanism comprising a mounting frame (6) mounted in the oxidation chamber (2), the mounting frame (6) gradually tilting upward from the left end to the right, the material turning mechanism also comprising a material roller group (7) fixed in the mounting frame (6), the material roller group (7) comprising a plurality of material roller units (8), the plurality of material roller units (8) being distributed on the mounting frame (6) from left to right in accordance with the tilting manner of the mounting frame (6), the material turning mechanism also comprising an auxiliary plate (9) mounted in the bottom chamber (1), the auxiliary plate (9) being located on the right side of the material roller unit (8), the auxiliary plate (9) being tilted in the lower left direction, and a material turning gap (12) tilted in the lower left direction is formed between the top end of the mounting frame (6) and the auxiliary plate (9), the oxidation chamber (2) is provided with an injection pipe (11), the injection pipe (11) comprising two groups, the two groups of injection pipes (11) being arranged in a plurality of groups. The injection pipe (11) is distributed on the left and right sides of the material turning mechanism. The feeding wheel system (5) is divided into two groups on the left and right sides. The two groups of feeding wheel systems (5) are composed of a plurality of conveying wheel units (13). The two feeding wheel systems (5) on the left and right sides are distributed on the left and right sides of the material turning mechanism. The conveying wheel unit (13) on the left side is distributed from the feeding side of the feeding chamber (3) into the oxidation chamber (2) and is close to the left side of the material turning mechanism; the conveying wheel unit (13) on the right side is distributed from the discharging side of the discharging chamber (4) into the oxidation chamber (2) and is close to the right side of the bottom of the auxiliary plate (9); an auxiliary material receiving assembly is provided in the oxidation chamber (2), and the material receiving assembly includes a tilting rod (14) transferred into the oxidation chamber (2), and the left end of the tilting rod (14) is tilted upward and enters between the left side of the mounting frame (6) and the conveying wheel unit (13).

2. The anti-oxidation treatment device for a PCB circuit board according to claim 1, characterized in that: A liquid collecting cover (16) is provided on the top of the oxidation chamber (2), and the top ends of the left and right groups of injection pipes (11) pass through the top of the oxidation chamber (2) and are connected to the liquid collecting cover (16).

3. The anti-oxidation treatment device for a PCB circuit board according to claim 2, characterized in that: The material turning mechanism further comprises a baffle (10) arranged on the right end of the mounting frame (6), the baffle (10) being inclined to the lower left, the baffle (10) being parallel to the auxiliary plate (9), and the bottom end of the baffle (10) being close to the conveying wheel unit (13) on the right side.

4. The anti-oxidation treatment device for a PCB circuit board according to claim 3, characterized in that: The nozzle of the spray pipe (11) is vertically downward, and the spray pipe (11) on the left side is distributed from left to right to the left end close to the tilting rod (14).

5. The anti-oxidation treatment device for a PCB circuit board according to claim 4, characterized in that: The tilting rod (14) is composed of a plurality of unit rods evenly distributed front and back, the right ends of the unit rods are commonly connected to a fixing rod (17), the front and rear ends of the fixing rod (17) are connected to a rotating seat (18), the two rotating seats (18) are respectively fixed to the front and rear inner walls of the oxidation chamber (2), the fixing rod (17) is installed with a driven cam (19), the oxidation chamber (2) is equipped with a driving wheel (20), and the outer circumferential surface of the driving wheel (20) is provided with an active cam (21), The active cam (21) rotates along with the driving wheel (20), the driven cam (19) is located on the rotation track of the active cam (21), a driven pulley (22) is installed on the back of the driving wheel (20), a driving pulley (23) is installed on one of the material roller units (8), the driving pulley (23) is connected to the driven pulley (22) through a conveyor belt transmission, and the wheel diameter of the driven pulley (22) is larger than the wheel diameter of the driving pulley (23).

6. The anti-oxidation treatment device for a PCB circuit board according to claim 5, characterized in that: The active cam (21) and the driven cam (19) are rubber wheels. A limit rod (25) is fixed on the inner wall of the oxidation chamber (2), and the limit rod (25) is located at the bottom of the tilting rod (14).

7. The anti-oxidation treatment device for a PCB circuit board according to claim 6, characterized in that: The outer end of the material roller unit (8) extends outside the oxidation chamber (2), the outer end of the shaft on which the conveying wheel unit (13) is located extends outside the oxidation chamber (2), and the outer ends of the shafts on which the material roller unit (8) and the conveying wheel unit (13) are located are connected together by transmission.

8. The anti-oxidation treatment device for a PCB circuit board according to claim 7, characterized in that: A conveyor belt (24) is commonly connected to the plurality of material roller units (8).

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