Circuit board activation apparatus and circuit board production line

Abstract

The application belongs to the technical field of circuit board production, and discloses a circuit board activation equipment and a circuit board production line. The circuit board activation equipment comprises an activation tank capable of containing activation liquid and a conveying mechanism for conveying the activated circuit board. In the conveying direction of the conveying mechanism, the middle section of the conveying mechanism extends to the bottom of the activation tank, so that the middle section of the conveying path of the circuit board conveyed by the conveying mechanism is below the liquid level of the activation liquid. The circuit board activation equipment and the circuit board production line provided by the application can make the liquid level of the activation liquid in the activation tank lower than the conveying surface of the whole equipment, ensure that the activation liquid in the activation tank is not easy to overflow, and thus it is not necessary to pump the activation liquid into the activation tank from the outside to maintain the liquid level height, the activation liquid in the activation tank can be maintained stable, compared with the prior art, the generation of bubbles in the activation liquid is effectively reduced, and the activation quality is improved.

Description

Technical Field

[0001] This invention relates to the field of circuit board manufacturing technology, and in particular to a circuit board activation device and a circuit board production line. Background Technology

[0002] In circuit board production, before copper plating, the circuit board needs to be activated by an activation device. The purpose of the activation treatment is to form a layer of palladium ion chelate on the surface of the circuit board and in its holes, which serves as the base for copper adhesion in the subsequent copper plating process.

[0003] like Figure 1 As shown, the existing circuit board activation equipment includes an activation tank 1' and a conveying mechanism 2'. The conveying mechanism 2' generally includes two horizontally arranged rollers 21' and gears, motors, etc., for driving the rollers 21'. The circuit board can be clamped and conveyed through the activation tank 1' by the two rollers 22'. The activation tank 1' includes a sub-tank 11' and a mother tank (not shown). The two ends of the sub-tank 11' have notches 12'. The conveying mechanism 2' passes through the activation tank 1' through the two notches so that when the sub-tank 11' is filled with activation liquid, the activation liquid can fully contact the circuit board.

[0004] Normally, to prevent the activation liquid in the sub-tank 11' from flowing back into the main tank through the aforementioned gap 12', the rollers 21' at the two gaps 12' are configured as an upper and lower roller structure. However, in actual activation operations, a large amount of activation liquid will still flow out from between the rollers 21' at the aforementioned gap 12' (refer to the direction of the arrow in the figure). In order to ensure that the liquid level in the sub-tank 11' is stable, the main tank needs to pump a large amount of replenishing liquid into the sub-tank 11', which causes the activation liquid in the sub-tank 11' to be disturbed and form a large number of bubbles. These bubbles adhere to the surface of the circuit board, which will be detrimental to the formation of palladium ion chelates, thereby affecting the subsequent copper plating quality.

[0005] Furthermore, the existing activation tank 1' has an open structure between the sub-tank 11' and the main tank, allowing the activation liquid to come into direct contact with oxygen in the air. Moreover, during the activation process, the activation liquid flows back and forth between the sub-tank 11' and the main tank, which greatly increases the contact between the activation liquid and oxygen in the air, thus shortening the service life of the activation liquid.

[0006] Therefore, the above problems urgently need to be solved. Summary of the Invention

[0007] The purpose of this invention is to provide a circuit board activation equipment and circuit board production line to reduce the generation of bubbles in the activation solution during the activation process and improve the activation quality.

[0008] To achieve this objective, the present invention adopts the following technical solution:

[0009] A circuit board activation device includes an activation tank capable of containing an activation solution and a conveying mechanism for conveying the circuit board to be activated. Along the conveying direction of the conveying mechanism, the middle section of the conveying mechanism extends toward the bottom of the activation tank, so that the middle section of the conveying path of the conveying mechanism for conveying the circuit board is below the liquid surface of the activation solution.

[0010] Preferably, the conveying mechanism includes a first conveying section, a second conveying section, and a third conveying section, all extending linearly, wherein:

[0011] The activation groove extends from the first end of the first conveying section and the tail end of the third conveying section;

[0012] The second conveying section is connected between the first end of the first conveying section and the third conveying section, and the conveying path of the circuit board of the second conveying section is below the liquid surface of the activation liquid.

[0013] Preferably, along the conveying direction of the conveying mechanism, the length of the second conveying section is greater than the length of the circuit board.

[0014] Preferably, the first conveying unit, the second conveying unit, and the third conveying unit each include:

[0015] Multiple first rollers are arranged parallel to each other along the conveying direction of the conveying mechanism; and

[0016] A plurality of second rollers are disposed below the plurality of first rollers, and the plurality of second rollers are arranged in parallel along the conveying direction of the conveying mechanism, and the plurality of first rollers and the plurality of second rollers constitute the conveying path.

[0017] Preferably, the conveying mechanism further includes a drive unit configured to drive the plurality of second rollers to rotate synchronously.

[0018] Preferably, the portion of the first roller near the junction of the first conveying section and the second conveying section, and the portion of the first roller near the junction of the second conveying section and the third conveying section, can move away from the second roller.

[0019] Preferably, at least one of the first rollers and / or at least one of the second rollers are configured to apply a vibrational force to the circuit board.

[0020] Preferably, the plurality of second rollers are rotatably mounted on the side wall of the activation tank, and at least one end of the plurality of second rollers extends through the side wall to be connected to the drive unit disposed outside the activation tank.

[0021] Preferably, a sealing portion is provided between the portion of the plurality of second rollers that penetrates the sidewall of the activation tank and the sidewall.

[0022] To achieve this objective, the present invention also employs the following technical solutions:

[0023] A circuit board production line includes the circuit board activation equipment described above.

[0024] The beneficial effects of this invention are:

[0025] The circuit board activation equipment and circuit board production line provided by this invention, when the conveying mechanism transports the circuit board through the activation tank, the curved part extending towards the bottom of the activation tank allows the circuit board to fully contact and react with the activation liquid in the activation tank. Furthermore, by means of the partially downward curved structure of the conveying mechanism, the liquid level of the activation liquid in the activation tank can be kept lower than the conveying surface of the entire equipment, ensuring that the activation liquid in the activation tank is not prone to overflow. Thus, there is no need to externally pump the activation liquid into the activation tank to maintain the liquid level, and the activation liquid in the activation tank can be kept stable. Compared with the prior art, this effectively reduces the generation of bubbles in the activation liquid and improves the activation quality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a circuit board activation device in the prior art;

[0027] Figure 2 This is a schematic diagram of the circuit board activation device in an embodiment of the present invention;

[0028] Figure 3 This is a simplified structural diagram of the circuit board activation device in an embodiment of the present invention;

[0029] Figure 4 yes Figure 2 A magnified view of a portion of the image.

[0030] In the picture:

[0031] 1' Activation tank; 11' Sub-tank; 12' Notch; 2' Conveying mechanism; 21' Roller;

[0032] 1. Activation tank; 11. Bottom wall; 12. Side wall; 121. Placement tank; 13. Floating plate; 14. Limiting mechanism; 141. First limiting block; 142. Second limiting block;

[0033] 2. Conveying mechanism; 21. First conveying section; 22. Second conveying section; 23. Third conveying section; 24. First roller; 25. Second roller; 26. Drive unit; 261. Motor; 262. Drive shaft; 263. First worm gear; 264. Second worm gear; 265. Belt; 266. Gear;

[0034] 3. Vibration mechanism;

[0035] A. Conveying surface. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0037] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0040] Please see Figure 2 This embodiment provides a circuit board activation device for continuously activating circuit boards. For this purpose, it includes an activation tank 1 capable of containing activation liquid and a conveying mechanism 2 for continuously conveying the activated circuit boards. The conveying mechanism 2 can pass through the activation tank 1 so that the conveyed circuit boards can come into contact with the activation liquid.

[0041] Specifically, such as Figure 3As shown, the activation tank 1 has a bottom wall 11 and four side walls 12. The four side walls 12 are approximately the same height, so that together with the bottom wall 11, they can form a tank suitable for securely containing the activation liquid. The conveying mechanism 2 is introduced into the tank from one end of the activation tank 1 and led out from the other end of the activation tank 1, so that the activation tank 1 falls on the conveying path of the conveying mechanism 2. Furthermore, along the conveying direction of the conveying mechanism 2, the middle section of the conveying mechanism 2 that flows through the activation tank 1 extends towards the bottom of the activation tank 1, forming a partially sunken curved conveying section. This allows the middle section of the conveying path of the conveying mechanism 2 for conveying the circuit board, i.e., the aforementioned curved conveying section, to be located below the surface of the activation liquid.

[0042] With the above structure, the activation operation area of ​​the activation tank 1 can be formed from the entry part where the conveying mechanism 2 extends below the surface of the activation liquid to the exit part that extends above the surface of the activation liquid. When the conveying mechanism 2 conveys the circuit board through the above-mentioned activation operation area, it can fully contact and react with the activation liquid in the activation tank 1, so that a layer of palladium ion chelate is formed on the surface and inside the holes of the circuit board.

[0043] Furthermore, the conveying mechanism 2, by means of its partially downward-curved structure, can make its upstream and downstream portions of the curved conveying section level with or higher than the liquid level of the activation liquid in the activation tank 1. This ensures that even if the liquid level of the activation liquid in the activation tank 1 is lower than the conveying surface A of the entire equipment, the activation liquid in the activation tank 1 is not prone to overflow. As a result, there is no need to pump activation liquid into the activation tank 1 externally to maintain the liquid level. The activation liquid in the activation tank 1 can be kept stable. Compared with the prior art, this effectively reduces the generation of bubbles in the activation liquid and improves the activation quality.

[0044] Circuit boards are typically rigid or flexible flat panels. To ensure that rigid circuit boards are not bent or damaged during transport in conveyor mechanism 2, please refer to [reference needed]. Figure 2 and Figure 3 In this embodiment, the curved conveying section of the conveying mechanism 2 includes a first conveying section 21 that extends linearly (which can be considered as...). Figure 2 and Figure 3 The middle conveyor 2 (the part that is descending), the second conveyor 22 (which can be regarded as) Figure 2 and Figure 3 The middle conveying mechanism 2 is a horizontally extending part) and the third conveying part 23 (which can be regarded as) Figure 2 and Figure 3 The middle conveying mechanism 2 is in the upward trend section, wherein the first end of the first conveying section 21 and the tail end of the third conveying section 23 extend into the activation tank 1; the second conveying section 22 is connected between the first end of the first conveying section 21 and the third conveying section 23, and the conveying path of the second conveying section 22 conveying the circuit board is located below the liquid surface of the activation liquid.

[0045] By configuring the bending conveyor section as described above, consisting of three sequentially connected linear conveyor sections, the circuit board only needs to traverse two bending paths during its transport: one at the junction of the first conveyor section 21 and the second conveyor section 22, and the other at the junction of the second conveyor section 22 and the third conveyor section 23. Compared to configuring the bending conveyor section of the conveyor mechanism 2 as a regular arc or consisting of more sequentially connected linear conveyor sections, the bending stress during circuit board transport can be reduced, lowering the possibility of bending damage. Furthermore, compared to configuring the bending conveyor section of the conveyor mechanism 2 as consisting of only two sequentially connected conveyor sections, the bending angles at the junctions of the first conveyor section 21 and the second conveyor section 22, and at the junction of the second conveyor section 22 and the third conveyor section 23, can be significantly reduced, further contributing to lowering the possibility of circuit board bending damage.

[0046] Preferably, along the conveying direction of the conveying mechanism 2, the length of the second conveying section 22 is greater than the length of the circuit board, so as to avoid the circuit board being bent at both the joint between the first conveying section 21 and the second conveying section 22 and the joint between the second conveying section 22 and the third conveying section 23 during the conveying process.

[0047] like Figure 3 As shown, in this embodiment, the first conveying section 21, the second conveying section 22, and the third conveying section 23 each specifically include a plurality of first rollers 24 and a plurality of second rollers 25. The plurality of first rollers 24 are arranged parallel to each other along the conveying direction of the conveying mechanism 2, and the plurality of second rollers 25 are disposed below the plurality of first rollers 24 and are arranged parallel to each other along the conveying direction of the conveying mechanism 2. There is a gap between the plurality of first rollers 24 and the plurality of second rollers 25 that corresponds to the thickness of the circuit board, so as to form the aforementioned conveying path. At the same time, the conveying mechanism 2 also includes a driving section 26, which is configured to drive the plurality of second rollers 25 to rotate synchronously.

[0048] For example, please refer to Figure 2 and Figure 4 In this embodiment, multiple second rollers 25 are rotatably mounted on the side wall 12 of the activation tank 1, and at least one end of the multiple second rollers 25 protrudes from the side wall 12 of the activation tank 1. The drive unit 26 is disposed outside the activation tank 1, and may include a motor 261 and a drive shaft 262 that is drively connected to the motor 261 and rotatably connected to the outside of the activation tank 1. The drive shaft 262 extends along the conveying direction of the conveying mechanism 2. The portions of the multiple second rollers 25 that protrude from the side wall 12 of the activation tank 1 are provided with first worm gears 263. A plurality of second worm gears 264 are provided on the conveying shaft. Each second worm gear 264 meshes one-to-one with the first worm gear 263 of each second roller 25 of the second conveying unit 22, so that each second roller 25 of the second conveying unit 22 can be driven to rotate synchronously by the drive shaft 262.

[0049] Because the first conveying section 21 and the third conveying section 23 are inclined, to accommodate their inclination, the first conveying section 21 and the third conveying section 23 are not suitable for conventional shaft drives. Instead, they are driven by belts 265 between the second rollers 25 adjacent to the second conveying section 22, and the remaining second rollers 25 of the first conveying section 21 and the third conveying section 23 are driven by belts 265 in sequence, thereby enabling all the second rollers 25 of the first conveying section 21, the second conveying section 22, and the third conveying section 23 to drive synchronously. In addition, the structure of each first roller 24 can be substantially the same as that of the second rollers, and each first roller 24 can mesh with each second roller located below it via gears 266 to rotate synchronously.

[0050] To prevent leakage of the activation solution, a sealing part (not shown) such as packing or mechanical seal can be provided between the portion of the multiple first rollers 24 and the multiple second rollers 25 that penetrate the side wall 12 of the activation tank 1 and the side wall 12. The structure of the sealing part can be selected using existing technology, which will not be described in detail here.

[0051] To further reduce the possibility of circuit board bending and breakage, preferably, a portion of the first roller 24 near the docking point of the first conveying section 21 and the second conveying section 22, and a portion of the first roller 24 near the docking point of the second conveying section 22 and the third conveying section 23, can move away from the second roller 25. This allows the first roller 24 at the turning point of the conveying path to be driven by the circuit board when the circuit board flows through the two docking points, thus avoiding bending of the circuit board.

[0052] Specifically, such as Figure 4 As shown, the side wall 12 of the activation tank 1 is provided with a placement groove 121 extending downward from its top surface. The shaft ends of multiple first rollers 24 are placed in each placement groove 121 in a corresponding manner so that they fall to the bottom of the placement groove 121 under the action of gravity. At this time, the gap between the first roller 24 and the second roller below is just enough to allow the circuit board to pass through. When the first roller 24 provided at the two docking points is subjected to the upward force applied by the circuit board, the first roller 24 can avoid it by moving upward along the placement groove 121 and, under the action of gravity, keep pressing against the circuit board, so that the circuit board is transported smoothly.

[0053] like Figure 3 As shown, in this embodiment, the activation tank 1 further includes a float plate 13 and a limiting mechanism 14. The float plate 13 floats on the surface of the activation liquid in the tank, and the limiting mechanism 14 is disposed in the tank and configured to limit the float plate 13 to the middle section of the tank along the conveying direction of the circuit board.

[0054] With the above structure, the float 13 floats on the surface of the activation liquid in the tank, and can float along with the fluctuations and rises and falls of the activation liquid, continuously covering the activation liquid. This isolates the portion of the activation liquid covered by the float 13 from contact with air, extending the service life of the activation liquid. The limiting mechanism 14 limits the float 13 to the middle section of the tank along the conveying direction of the circuit board, preventing the float 13 from contacting or colliding with the first conveying section 21 upstream and the third conveying section 23 downstream, thus preventing it from getting stuck on the first roller 24 of the first conveying section 21 and the third conveying section 23.

[0055] In this embodiment, the float 13 is generally positioned directly above the second conveying section 22. Its front and rear ends along the circuit board conveying direction are close to the first conveying section 21 and the third conveying section 23, respectively. Alternatively, the conveying mechanism 2 enters the activation liquid upstream of the float 13 and exits the activation liquid downstream of the float 13, so that the float 13 can substantially cover the liquid surface from the point where the first conveying section 21 contacts the liquid surface to the point where the third conveying section 23 contacts the liquid surface. It is understood that the float 13 is made of an acid- and alkali-resistant material with a density less than that of the activation liquid.

[0056] Please continue reading. Figure 3 In this embodiment, the limiting mechanism 14 includes a plurality of first limiting blocks 141. The plurality of first limiting blocks 141 are connected to the inner wall of the tank. The plurality of first limiting blocks 141 are respectively disposed upstream and downstream of the float 13 along the conveying direction to form a first limiting part that restricts the float 13 from moving horizontally, that is, it can prevent the float 13 from contacting and colliding with the first conveying part 21 and the third conveying part 23, and avoid grounding. Preferably, the positions of the plurality of first limiting blocks 141 are adjustable to the inner wall of the tank to accommodate floats 13 of different sizes. For example, the connection position of the first limiting blocks 141 and the tank can be adjusted by bolts and adjustable structural forms.

[0057] Optionally, the length of the first limiting part, i.e. the distance between the two first limiting blocks 141 adjacent to the upstream and downstream sides of the float plate 13, is greater than the length of the float plate 13, and / or the width of the first limiting part, i.e. the distance between the two first limiting blocks 141 adjacent to the left and right sides of the float plate 13 perpendicular to the conveying direction, is greater than the width of the float plate 13, so as to ensure that when the float plate 13 floats forward, backward, left, and right, the size of the first limiting part is not too compact and it will be stuck by individual first limiting blocks 141, thereby avoiding separation from the liquid surface.

[0058] Preferably, the limiting mechanism 14 may further include a plurality of second limiting blocks 142, which are connected to the inner wall of the tank and positioned below the float 13 to form a second limiting portion that restricts the vertical movement of the float 13. This prevents the float 13 from directly contacting and wearing with the first roller 24 when the level of the activation liquid drops, and avoids contamination of the activation liquid by float 13 debris. Similar to the first limiting block 141, the plurality of second limiting blocks 142 are adjustablely connected to the inner wall of the tank to accommodate floats 13 of different thicknesses or different liquid levels.

[0059] Before the activation process, after the circuit board completes the previous process and is immersed in water, a small amount of water adheres to its surface. This water forms a water film at the holes on the circuit board. During the activation process, air bubbles will remain at the holes with the water film, preventing the activation solution from contacting the hole walls. This hinders the formation of palladium ion chelates at the hole walls and affects the subsequent copper plating quality. To solve this problem, in this embodiment, the activation equipment also includes at least one vibration mechanism 3. The vibration mechanism 3 is configured to apply vibration force to the circuit board conveyed by the conveying mechanism 2. During the activation process, the air bubbles at the holes with the water film on the circuit board will be broken by vibration, allowing the hole walls to directly contact and react with the activation solution. Optionally, the vibration mechanism 3 can be located in the activation operation area or upstream of the activation operation area along the conveying direction of the conveying mechanism 2.

[0060] like Figure 3 As shown, in this embodiment, the vibration mechanism 3 is a vibrating roller, which is connected in series within the conveying mechanism 2 and can convey the circuit board in the same direction as the conveying mechanism 2. Exemplarily, the vibrating roller can be connected in series between multiple first rollers 24 and / or multiple second rollers 25. That is, at least one first roller 24 and / or at least one second roller 25 in the conveying mechanism 2 can be replaced with the aforementioned vibrating roller, thereby applying a vibration force to the circuit board as it flows through. Optionally, based on the actual spatial layout within the activation tank 1, the vibrating roller can be located above or above the surface of the activation liquid. Preferably, the vibrating roller is positioned above the liquid surface to reduce disturbance to the activation liquid. Furthermore, two or more vibrating rollers can be provided, which can be connected in series or spaced apart. The structure of the vibrating roller can be selected using existing technology, which will not be elaborated here.

[0061] It should be noted that the vibrating roller preferably does not come into contact with other parts of the conveying mechanism 2, so as to avoid the transmission of vibration force through the conveying mechanism 2, which would cause the downstream circuit board to be transported unstably.

[0062] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A circuit board activation device, comprising an activation tank (1) capable of containing an activation solution and a conveying mechanism (2) for conveying the circuit board to be activated, characterized in that, The conveying mechanism (2) is introduced into the tank body from one end of the activation tank (1) and led out from the other end of the activation tank (1) so that the activation tank (1) falls on the conveying path of the conveying mechanism (2). Along the conveying direction of the conveying mechanism (2), the middle section of the conveying mechanism (2) extends towards the bottom of the activation tank (1) so that the middle section of the conveying path of the conveying mechanism (2) for conveying the circuit board is below the liquid surface of the activation liquid. The upstream and downstream parts of the conveying mechanism (2) are level with or higher than the liquid surface of the activation liquid. The conveying mechanism (2) includes a first conveying section (21), a second conveying section (22), and a third conveying section (23), all extending linearly, wherein: The activation groove (1) extends from the first end of the first conveying section (21) and the tail end of the third conveying section (23). The second conveying section (22) is connected between the first end of the first conveying section (21) and the third conveying section (23), and the conveying path of the second conveying section (22) for conveying the circuit board is located below the liquid surface of the activation liquid; The activation tank (1) further includes a float plate (13) and a limiting mechanism (14). The float plate (13) floats on the surface of the activation liquid in the tank. The limiting mechanism (14) is disposed in the tank and is configured to limit the float plate (13) to the middle section of the tank along the conveying direction of the circuit board.

2. The circuit board activation device according to claim 1, characterized in that, Along the conveying direction of the conveying mechanism (2), the length of the second conveying part (22) is greater than the length of the circuit board.

3. The circuit board activation device according to claim 1, characterized in that, The first conveying unit (21), the second conveying unit (22), and the third conveying unit (23) each include: Multiple first rollers (24) are arranged parallel to each other along the conveying direction of the conveying mechanism (2); and Multiple second rollers (25) are disposed below the multiple first rollers (24), and the multiple second rollers (25) are arranged in parallel along the conveying direction of the conveying mechanism (2), and the multiple first rollers (24) and the multiple second rollers (25) constitute the conveying path.

4. The circuit board activation device according to claim 3, characterized in that, The conveying mechanism (2) further includes a drive unit (26) configured to drive the plurality of second rollers (25) to rotate synchronously.

5. The circuit board activation device according to claim 3, characterized in that, The portion of the first roller (24) near the junction of the first conveying section (21) and the second conveying section (22), and the portion of the first roller (24) near the junction of the second conveying section (22) and the third conveying section (23) are able to move away from the second roller (25).

6. The circuit board activation device according to claim 3, characterized in that, At least one of the first rollers (24) and / or at least one of the second rollers (25) are configured to apply a vibrational force to the circuit board.

7. The circuit board activation device according to claim 4, characterized in that, The plurality of second rollers (25) are rotatably mounted on the side wall (12) of the activation tank (1), and at least one end of the plurality of second rollers (25) extends through the side wall (12) to be connected to the drive unit (26) located outside the activation tank (1).

8. The circuit board activation device according to claim 7, characterized in that, A sealing portion is provided between the portion of the plurality of second rollers (25) that penetrates the side wall (12) of the activation tank (1) and the side wall (12).

9. A circuit board production line, characterized in that, Includes the circuit board activation device according to any one of claims 1-8.

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