FPC nickel plating tank

Abstract

The invention relates to the technical field of FPC manufacturing, and discloses an FPC nickel plating bath which comprises a plating bath body and further comprises a protection device matched with the plating bath body, and the protection device comprises a cathode rod and a rectifier; the positive electrode of the rectifier is connected with the plating bath body, and the negative electrode of the rectifier is connected with the cathode rod; the cathode rod is mounted in the plating bath body through a mounting piece and is immersed in a plating solution, so that a potential difference is formed between the cathode rod and the plating bath body. According to the invention, the loss of chemical nickel in a non-target area can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of FPC manufacturing, and in particular to an FPC nickel plating tank. Background Art

[0002] At present, flexible printed circuits (FPCs) are often used in control systems in the vehicle field because of their lightness, flexibility, and good conductivity.

[0003] During the processing of FPC, a chemical nickel layer is usually plated on the surface of its substrate to improve the performance of the FPC. The quality of the chemical nickel plating on the FPC affects the corrosion resistance, conductivity and wear resistance of the FPC, which in turn affects the stability and service life of the signal transmission of the vehicle control system.

[0004] At present, the chemical nickel plating of FPC usually involves placing the FPC in a plating solution containing nickel ions, which reacts with the FPC substrate to make the nickel adhere to the FPC surface. However, when the plating tank containing the plating solution is made of stainless steel, the plating solution is prone to react with the inner wall of the plating tank, causing a large amount of chemical nickel to be deposited on the inner wall of the plating tank, and a small amount of chemical nickel is plated on the FPC board, which not only causes material waste, but also easily increases the reaction time of the FPC board, affecting the nickel plating quality of the FPC. Summary of the invention

[0005] In order to reduce the loss of chemical nickel in non-target areas, the present application provides an FPC nickel plating tank.

[0006] The present application provides an FPC nickel plating tank, which adopts the following technical solution: A FPC nickel plating tank comprises a plating tank body and a protective device matched with the plating tank body, wherein the protective device comprises a cathode rod and a rectifier; the positive pole of the rectifier is connected to the plating tank body, and the negative pole of the rectifier is connected to the cathode rod; the cathode rod is installed in the plating tank body through a mounting piece and immersed in a plating solution so that a potential difference is formed between the cathode rod and the plating tank body.

[0007] By adopting the above technical solution, the potential difference formed between the cathode rod and the plating tank body causes current to flow through the plating tank body, so that the plating tank body is in an electrochemical passivation state, reducing the deposition of nickel on the plating tank body, thereby improving the nickel plating efficiency, reducing material waste, and improving the nickel plating quality of the FPC board, which in turn helps to improve the stability and service life of the signal transmission of the vehicle control system.

[0008] Optionally, the mounting member includes a base, a bracket, a telescopic member, a weighing sensor and a hook; the base is mounted on the plating tank body, and the base has a through hole for the cathode rod to penetrate vertically; the bracket is arranged on the base and is used for mounting the telescopic member; the telescopic member has a telescopic end that telescopes vertically, and the telescopic end of the telescopic member, the weighing sensor and the hook are sequentially connected in a downward direction; the cathode rod has a hanging ring for the hook to hang; The telescopic end of the telescopic member can drive the cathode rod to move upward away from the plating tank body, so that the weighing sensor can monitor the change of the cathode rod weight.

[0009] By adopting the above technical solution, after the cathode rod is driven away from the plating tank body by telescopic means, the cathode rod is weighed by a weighing sensor, so that the quality of the nickel layer added to the cathode rod can be monitored, so that the cathode rod can be replaced in time and the quality of the nickel plating tank can be improved.

[0010] Optionally, there are two clamping members on the base that move towards or away from each other, and both of the clamping members are covered with a water-absorbing layer with water-absorbing properties. When the two clamping members move towards each other, the water-absorbing layers on the clamping members can abut against and enclose the cathode rod together.

[0011] By adopting the above technical solution, the cathode rod can be wiped by two clamping parts with water absorption properties during its rising process to remove the plating solution or impurities attached to its surface, which helps to improve the cleanliness of the cathode rod, improve the nickel plating effect, and at the same time improve the accuracy of weighing the cathode rod.

[0012] Optionally, the water absorbing layer is rotatably sleeved on the clamping member, and the water absorbing layer is cylindrical, the rotation axis of the water absorbing layer on the clamping member coincides with the axis of the water absorbing layer itself, and the axes of the water absorbing layers on the two clamping members are parallel.

[0013] By adopting the above technical solution, when the cathode rod moves, the water absorbing layer can be driven to rotate through friction, so that the water absorbing layer can wipe the cathode rod with different parts to improve the water absorbing effect of the water absorbing layer on the cathode rod.

[0014] Optionally, the clamping member includes a moving seat, a rotating shaft, a connecting sleeve, a guide rod and a first power source; the moving seat moves on the base; the rotating shaft is rotatably connected to the moving seat, and the rotating axis direction of the rotating shaft is perpendicular to the moving direction of the moving seat, and the first power source is installed on the moving seat and is used to drive the rotating shaft to rotate; the connecting sleeve is coaxially sleeved and threadedly connected to the rotating shaft, the guide rod is connected to the moving seat and parallel to the rotating shaft, and the connecting sleeve is simultaneously slidably sleeved on the guide rod along an axial direction parallel to the rotating shaft; the water absorbing layer is coaxially rotatably sleeved on the connecting sleeve, and the water absorbing layer can undergo elastic deformation when under pressure; When the telescopic end of the telescopic member is extended, one end of the water absorbing layer along its own axis is opposite to the cathode rod; when the telescopic end of the telescopic member is retracted, the other end of the water absorbing layer along its own axis is opposite to the cathode rod.

[0015] By adopting the above technical solution, the rotating shaft is driven to rotate by the first power source, so that the movable seat can move relative to the rotating shaft during the process of absorbing water from the cathode rod, further increasing the area of ​​the water absorbing member absorbing water from the cathode rod during the movement of the cathode rod, and further improving the water absorbing effect on the cathode rod.

[0016] Optionally, the base has a driving assembly for driving the clamping member to move, and the driving assembly includes a driving rod and a second power source; the driving rod is rotatably connected to the base, and the second power source is used to provide rotational power to the driving rod; The driving rod has a first threaded portion and a second threaded portion which are coaxial and have opposite threads, and the two clamping members are respectively threadedly connected to the first threaded portion and the second threaded portion, and the two clamping members are symmetrical relative to the through hole.

[0017] By adopting the above technical solution, when the second power source drives the driving rod to rotate, the two clamping members can move synchronously toward or away from each other through the threads of the driving rod.

[0018] Optionally, the mounting member is provided with a guide cylinder coaxially opposite to the through hole, the guide cylinder is used for the cathode rod to pass through, and when the telescopic member drives the cathode rod to leave the plating tank body and the clamping member, the cathode rod is still guided by the guide cylinder.

[0019] By adopting the above technical solution and providing a guide cylinder, the cathode rod can be guided during its lifting process, thereby improving the stability of the cathode rod.

[0020] Optionally, a track is provided on one side of the plating tank body, a limit seat is provided in the track for sliding along the edge line direction of the plating tank body, a first locking member is connected to the limit seat for locking itself to the plating tank body, and the mounting member is connected to the limit seat.

[0021] By adopting the above technical solution, by arranging a track and a limit seat on one side of the plating tank body and connecting the first locking piece, the position of the mounting piece can be conveniently adjusted.

[0022] Optionally, the mounting member moves on the limiting seat in a direction approaching or moving away from the inner wall of the plating tank body to adjust the distance between the cathode rod and the plating tank body, and the limiting seat has a second locking member for positioning the mounting member.

[0023] By adopting the above technical solution, the mounting part can be moved on the limit seat to adjust the distance between the cathode rod and the plating tank body, so that the size of the potential difference can be adjusted according to actual needs, thereby improving the controllability and flexibility of the nickel plating process.

[0024] Optionally, a heating element extending into the plating solution is installed in the plating tank body.

[0025] By adopting the above technical solution and installing a heating element in the plating tank body, the plating solution can be heated to keep it within a suitable temperature range, thereby improving the efficiency and quality of nickel plating.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The potential difference between the cathode rod and the plating tank body is used to reduce the chemical reaction between the plating solution and the inner wall of the plating tank, thereby reducing the deposition of chemical nickel on the inner wall of the plating tank and improving the nickel plating efficiency; 2. Through the cooperation of the mounting parts and the limit seat, the user is allowed to adjust the position of the cathode rod according to actual needs, thereby adapting to plating tank bodies of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the structure of the cathode rod and the telescopic member in the embodiment of the present application; Figure 3 It is a schematic diagram of the structure of the mounting member and the cathode rod in the embodiment of the present application; Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 It is a schematic diagram of the structure of the clamping member and the cathode rod in the embodiment of the present application.

[0028] Description of reference numerals: 1, plating tank body; 2, cathode rod; 3, rectifier; 4, mounting member; 41, base; 42, bracket; 43, telescopic member; 44, weighing sensor; 45, hook; 5, perforation; 6, hanging ring; 7, clamping member; 71, moving seat; 72, rotating shaft; 73, connecting sleeve; 74, guide rod; 75, first power source; 8, water absorption layer; 9, driving assembly; 91, driving rod; 911, first threaded portion; 912, second threaded portion; 92, second power source; 10, guide cylinder; 11, track; 12, limit seat; 13, first locking piece; 131, first stud; 132, first nut; 14, second locking piece; 141, second stud; 142, second nut; 15, heating element; 16, insulating sleeve; 17, wire; 18, support seat; 19, installation cavity; 20, groove; 21, first slide groove; 22, second slide groove. DETAILED DESCRIPTION

[0029] The following combination Figures 1 to 5 This application is described in further detail.

[0030] The present application embodiment discloses a FPC nickel plating tank. Figure 1 The FPC nickel plating tank includes a plating tank body 1 and a protective device. The plating tank body 1 is in a square tank shape and is made of stainless steel. The protective device is installed on the plating tank body 1 so that the plating solution is not easy to react with the plating tank body 1.

[0031] Reference Figure 1 and Figure 2 , wherein the protection device includes a cathode rod 2 and a rectifier 3. The cathode rod 2 is in the shape of a round rod, and an insulating sleeve 16 is coaxially sleeved on the upper part of the cathode rod 2, and the lower part of the cathode rod 2 is used to immerse in the plating solution. The cathode rod 2 is installed on the plating tank body 1 through a mounting member 4, and the cathode rod 2 itself does not contact the plating tank body 1, so that the uninsulated part of the cathode rod 2 is suspended relative to the plating tank body 1, and the horizontal distance between the cathode rod 2 and the plating tank body 1 is greater than 2 cm. The rectifier 3 is installed in the external environment of the plating tank body 1, and the positive electrode of the rectifier 3 is connected to the plating tank body 1 through a wire 17, and the negative electrode of the rectifier 3 is connected to the cathode rod 2 through another wire 17, so that a potential difference is formed between the cathode rod 2 and the plating tank body 1, and current exchange is performed, so that the plating tank body 1 is in an electrochemical passivation state, and nickel is not easily deposited on the tank wall of the plating tank body 1 in this state. The cathode rod 2 insulating sleeve 16 has a section exposing the cathode rod 2 , and the cathode rod 2 on this section is threadedly connected with a nut made of insulating material, which is used to clamp the part of the wire 17 that contacts the cathode rod 2 to achieve electrical connection between the wire 17 and the cathode rod 2 .

[0032] Furthermore, during the use of the protective device, a nickel layer will be deposited on the cathode rod 2. As the thickness of the nickel layer increases, the use effect of the cathode rod 2 will be affected, and the cathode rod 2 needs to be replaced frequently. The mounting part 4 can weigh the cathode rod 2 to measure the change in weight of the cathode rod 2. When the weight of the cathode rod 2 increases to a certain value, a signal can be transmitted to remind the replacement of the cathode rod 2.

[0033] Reference Figure 1 and Figure 3 Specifically, the mounting member 4 includes a base 41, a bracket 42, a telescopic member 43, a weighing sensor 44 and a hook 45. A hanging ring 6 made of insulating material is fixed to the top of the cathode rod 2. One end of the base 41 is mounted on the top of the plating tank body 1, and the other end of the base 41 extends horizontally to face the inner cavity of the plating tank body 1. Figure 4 A through hole 5 is provided at the portion of the base 41 opposite to the inner cavity of the plating tank body 1 , and the through hole 5 is used for the cathode rod 2 to vertically coaxially penetrate the base 41 , and the aperture of the through hole 5 is slightly larger than the outer diameter of the insulating sleeve 16 on the cathode rod 2 .

[0034] Reference Figure 3 and Figure 4 The bracket 42 is in an inverted L shape, and the bracket 42 is fixed to the upper surface of the base 41. The distance between the top of the bracket 42 and the base 41 is greater than the extension length of the cathode rod 2. The telescopic member 43 is a multi-stage electric telescopic rod. The base of the telescopic member 43 is installed at the top of the bracket 42. The telescopic end of the telescopic member 43 faces downward and extends vertically. At the same time, the telescopic end of the telescopic member 43 is coaxial with the through hole 5.

[0035] The weighing sensor 44 is mounted on the telescopic end of the telescopic member 43. The hook 45 is connected to the weighing sensor 44, and the hook 45 is hung on the hanging ring 6 of the cathode rod 2, so that the cathode rod 2 is hung under the weighing sensor 44, so that the weighing sensor 44 can monitor the weight of the cathode rod 2.

[0036] When the telescopic end of the telescopic member 43 is extended, the cathode rod 2 passes through the base 41 and the lower part is immersed in the plating solution, and the part of the cathode rod 2 located in the through hole 5 is the part covered with the insulating sleeve 16, and the cathode rod 2 is in use. When the telescopic end of the telescopic member 43 is retracted, the cathode rod 2 is driven upward to leave the plating tank body 1 and the base 41, and the cathode rod 2 is located between the top of the bracket 42 and the base 41. At this time, the value weighed by the weighing sensor 44 on the cathode rod 2 is more accurate than the value weighed on the cathode rod 2 immersed in the plating solution and affected by buoyancy.

[0037] When the weighing sensor 44 detects that the weight of the cathode rod 2 reaches the set value, it will transmit a signal to remind the operator to replace the cathode rod 2. It should be noted that the cathode rod 2 is in a power-off state when the weighing sensor 44 weighs the cathode rod 2. In addition, the wire 17 connecting the rectifier 3 to the cathode rod 2 has a fixed point fixed on the wall, and the wire 17 between the fixed point and the cathode rod 2 has a sufficient length for the cathode rod 2 to move, so that the state of the wire 17 is consistent every time the weighing sensor 44 weighs the cathode rod 2, so that the wire 17 is not easy to affect the weighing of the cathode rod 2.

[0038] Reference Figure 4 and Figure 5 Furthermore, there are two clamping members 7 on the base 41 that move in a mirror-symmetrical manner with the perforation 5 as the center, and a driving assembly 9 is installed on the base 41 to drive the two clamping members 7 to move synchronously toward or away from each other. Both clamping members 7 have a water-absorbing layer 8, which has water-absorbing properties and can be elastically deformed. In this embodiment, the water-absorbing layer 8 is made of a water-absorbing sponge. When the two clamping members 7 move to approach each other, the water-absorbing layers 8 on the two clamping members 7 can jointly abut the cathode rod 2 and undergo elastic deformation, so that the water-absorbing layers 8 can jointly enclose the cathode rod 2, and when the cathode rod 2 moves to the weighing position, it detaches from the clamping member 7 upward, so that the water-absorbing layer 8 can absorb water from the cathode rod 2 during the process of the cathode rod 2 moving upward to the weighing position, so as to reduce the situation where the residual moisture on the cathode rod 2 affects the weighing of the cathode rod 2.

[0039] The driving assembly 9 includes a driving rod 91 and a second power source 92. An inverted U-shaped support seat 18 is fixed on the upper surface of the base 41. The support seat 18 and the base 41 together form a mounting cavity 19 for mounting the clamp 7, and the support seat 18 has a hole for the cathode rod 2 to pass through, and the size of the hole on the support seat 18 is consistent with the through hole 5. The driving rod 91 is rotatably connected to the support seat 18 and is located in the mounting cavity 19. The axis of the driving rod 91 extends in the horizontal direction and is parallel to the width direction of the plating tank body 1. The driving rod 91 is formed with a first threaded portion 911 and a second threaded portion 912 at two ends away from each other along the center point. The first threaded portion 911 and the second threaded portion 912 have external threads with opposite threads, and the first threaded portion 911 and the second threaded portion 912 are symmetrical with the through hole 5 as the center.

[0040] The two clamping members 7 are respectively threadedly mounted on the outer walls of the first threaded portion 911 and the second threaded portion 912. The two clamping members 7 are symmetrical with the through hole 5 as the center, and both clamping members 7 have a plane that abuts against the upper surface of the base 41, so that when the driving rod 91 rotates, the two clamping members 7 are driven to move towards or away from each other.

[0041] The second power source 92 is a rotating motor capable of forward and reverse rotation. The second power source 92 is installed on the outer wall of the support seat 18, and the output end of the second power source 92 is connected to the driving rod 91 to provide the driving rod 91 with rotational power for rotation.

[0042] Reference Figure 4 and Figure 5 Furthermore, each clamping member 7 includes a moving seat 71, a rotating shaft 72, a connecting sleeve 73, a guide rod 74 and a first power source 75. The moving seat 71 is in a square shape, and the clamping member 7 is threadedly sleeved on the driving rod 91 through the moving seat 71. The rotating shaft 72 is rotatably connected to the moving seat 71, and one end of the rotating shaft 72 extends out of the moving seat 71. The axis direction of the rotating shaft 72 extends in the horizontal direction and is perpendicular to the axis direction of the driving rod 91 at the same time. The rotating shafts 72 on the two clamping members 7 are parallel to each other. The first power source 75 is a motor capable of forward and reverse rotation. The first power source 75 is installed on the moving seat 71, and the output end of the first power source 75 is connected to the rotating shaft 72 to provide the rotating shaft 72 with power for rotation.

[0043] The connecting sleeve 73 is cylindrical, and the outer wall of the rotating shaft 72 has an external thread (not shown in the figure). The connecting sleeve 73 is coaxially sleeved and threadedly connected to the rotating shaft 72. The extension length of the rotating shaft 72 is greater than the extension length of the connecting sleeve 73 and less than twice the extension length of the connecting sleeve 73. The guide rod 74 is round and fixed to the moving seat 71. The guide rod 74 and the rotating shaft 72 are parallel to each other, extend in the same direction, and have the same extension length. The connecting sleeve 73 is also slidably sleeved on the guide rod 74. Therefore, when the rotating shaft 72 rotates, the connecting sleeve 73 is guided by the guide rod 74 to move along the axis of the rotating shaft 72.

[0044] It should be noted that the water absorbing layer 8 is cylindrical, and a hard rotating ring (not shown in the figure) is coaxially fixed to the inner wall of the water absorbing layer 8. The water absorbing layer 8 is coaxially sleeved and rotated on the outer wall of the connecting sleeve 73 through the rotating ring, and the two ends of the water absorbing layer 8 that are far away from each other are respectively flush with the two ends of the connecting sleeve 73 that are far away from each other. Among them, the rotating ring and the connecting sleeve 73 can be rotatably connected through a bearing.

[0045] Reference Figure 3 and Figure 5 When the cathode rod 2 is in the initial position for use in the plating solution, the telescopic end of the telescopic member 43 remains in the extended state, the outer peripheries of the water-absorbing layers 8 of the two clamping members 7 abut against each other, and elastic deformation occurs to jointly enclose the insulating sleeve 16 abutting against the cathode rod 2, so as to clamp the cathode rod 2 and improve the stability of the cathode rod 2. At the same time, one end of the water-absorbing layer 8 abuts against the movable seat 71, and the part of the water-absorbing layer 8 that clamps the cathode rod 2 is located at the end of the water-absorbing layer 8 away from the movable seat 71.

[0046] When the telescopic end of the telescopic member 43 is retracted upward to drive the cathode rod 2 upward away from the plating tank body 1, the first power source 75 simultaneously drives the rotating shaft 72 to rotate, driving the connecting sleeve 73 to move away from the moving seat 71, and the friction force can drive the water absorbing layer 8 to rotate relative to the connecting sleeve 73 during the upward movement of the cathode rod 2, so that the contact part of the water absorbing layer 8 and the cathode rod 2 is continuously changed to improve the effect of the water absorbing layer 8 on the cathode rod 2. During the process, the water absorbing layer 8 always undergoes elastic deformation to adapt to the shape of the cathode rod 2.

[0047] When the telescopic end of the telescopic member 43 is completely retracted, the cathode rod 2 moves upward away from the water absorbing layer 8 to reach the weighing position, and the weighing sensor 44 weighs the cathode rod 2. At the same time, the first power source 75 stops driving the rotating shaft 72 to rotate, and the end of the water absorbing layer 8 close to the moving seat 71 is opposite to the cathode rod 2.

[0048] When the weighing sensor 44 weighs the cathode rod 2, the second power source 92 drives the driving rod 91 to rotate so that the two moving seats 71 move away from each other until the water absorbing layer 8 leaves the position opposite to the perforation 5. Then the telescopic member 43 lowers the cathode rod 2 into the plating tank body 1 and returns it to its original position. The second power source 92 then drives the two moving seats 71 to move toward each other so that the water absorbing layers 8 in the two clamping members 7 clamp and enclose the cathode rod 2 together. At this time, the part of the water absorbing layer 8 clamping the cathode rod 2 is located at one end of the water absorbing layer 8 close to the moving seat 71. Since the cathode rod 2 has left the water absorbing layer 8 when this end of the water absorbing layer 8 is opposite to the cathode rod 2, less water is absorbed at this end.

[0049] In addition, when the cathode rod 2 performs the weighing process again, the first power source 75 drives the rotating shaft 72 to rotate in the opposite direction to the last time, so that the water absorbing layer 8 returns to the position close to the moving seat 71 during the process of absorbing water from the cathode rod 2. Similarly, in the subsequent weighing process of the cathode rod 2, the first power drives the rotating shaft 72 to rotate in the opposite direction to the last time each time, so as to limit the moving position of the connecting sleeve 73 on the moving seat 71 to between the two ends of the rotating shaft 72.

[0050] Reference Figure 4In order to improve the stability of the cathode rod 2 during the up and down movement, a guide cylinder 10 is fixed on the upper surface of the support seat 18. The end of the guide cylinder 10 close to the support seat 18 is a cylindrical section with an inner diameter consistent with the aperture of the through hole 5, and the end of the guide cylinder 10 away from the support seat 18 is a conical section. The outer diameter of the conical section gradually increases upward, and the minimum inner diameter of the conical section is consistent with the inner diameter of the cylindrical section. When the cathode rod 2 is located at the weighing position, the bottom end of the cathode rod 2 is located in the conical section to guide the cathode rod 2 when the cathode rod 2 moves downward. When replacing the cathode rod 2, after moving the cathode rod 2 to the weighing position, pull the cathode rod 2 upward to disengage the hanging ring 6 from the hook 45, and tilt the cathode rod 2 out of the conical section so that the cathode rod 2 can be quickly removed from the mounting member 4.

[0051] Reference Figure 1 and Figure 3 Furthermore, a track 11 is fixed to the periphery of the plating tank body 1, and a groove 20 is formed on the track 11, which is concave downward. The groove 20 extends along the length direction of the plating tank body 1 together with the track 11. The track 11 slides along the length direction of the plating tank body 1 in the groove 20 to limit the seat 12, and the limit seat 12 has a first locking member 13 and a second locking member 14.

[0052] The first locking member 13 includes a first stud 131 and a first nut 132. The first stud 131 is fixed to the lower surface of the limiting seat 12 and extends downward. The bottom of the track 11 is provided with a first slide groove 21 for the first stud 131 to pass through and slide along the length direction of the plating tank body 1. The first nut 132 is threadedly connected to the outer wall of the first stud 131. When the first nut 132 is loosened, the limiting seat 12 can move in the track 11. When the first nut 132 is tightened until it is tightly against the track 11, the limiting seat 12 can be positioned on the track 11.

[0053] The second locking member 14 includes a second stud 141 and a second nut 142. The second stud 141 is fixed to the upper surface of the limiting seat 12 and extends upward, and a second slide groove 22 is provided on the base 41 for the second stud 141 to pass through and slide along the width direction of the plating tank body 1. The second nut 142 is threadedly connected to the outer wall of the second stud 141. When the first nut 132 is loosened, the base 41 can slide relative to the limiting seat 12 along the width direction of the plating tank body 1 to adjust the distance between the cathode rod 2 and the inner wall of the plating tank body 1; when the first nut 132 is tightened until the base 41 is clamped between the first nut 132 and the limiting seat 12, the base 41 can be positioned on the limiting seat 12.

[0054] Reference Figure 1 and Figure 4Furthermore, a heating element 15 immersed in the plating solution is installed on the plating tank body 1. The heating element 15 can increase the temperature of the plating solution and improve the reaction efficiency between the plating solution and the workpiece to be plated. In this embodiment, the heating element 15 is an electric heating rod. In addition, the heating element 15 is close to the cathode rod 2 and opposite to the opening of the installation cavity 19, so that part of the heat generated by the heating element 15 can enter the installation cavity 19 to dry the water absorbing layer 8 and improve the efficiency of the water absorbing layer 8 drying after absorbing water.

[0055] The implementation principle of the FPC nickel plating tank of the embodiment of the present application is: current is passed through the cathode rod 2 and the plating tank body 1, so that the plating tank body 1 is in an electrochemical passivation state, so that the nickel in the plating solution is not easily deposited on the inner wall of the plating tank. And the cathode rod 2 is pulled out of the plating tank body 1 through the telescopic member 43 at intervals, and the cathode rod 2 is weighed by the weighing sensor 44 to detect the change in the weight of the cathode rod 2, thereby monitoring the nickel deposition on the cathode rod 2, so that the cathode rod 2 can be replaced in time.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An FPC nickel plating tank, comprising a plating tank body (1), characterized in that: It also includes a protection device that cooperates with the plating tank body (1), and the protection device includes a cathode rod (2) and a rectifier (3); the positive electrode of the rectifier (3) is connected to the plating tank body (1), and the negative electrode of the rectifier (3) is connected to the cathode rod (2); the cathode rod (2) is installed in the plating tank body (1) through a mounting member (4) and immersed in the plating solution, so that a potential difference is formed between the cathode rod (2) and the plating tank body (1).

2. The FPC nickel plating tank according to claim 1, characterized in that: The mounting member (4) comprises a base (41), a bracket (42), a telescopic member (43), a weighing sensor (44) and a hook (45); the base (41) is mounted on the plating tank body (1), and the base (41) has a through hole (5) for the cathode rod (2) to penetrate vertically; the bracket (42) is arranged on the base (41) and is used for mounting the telescopic member (43); the telescopic member (43) has a telescopic end that can be telescoped vertically, and the telescopic end of the telescopic member (43), the weighing sensor (44) and the hook (45) are sequentially connected in a downward direction; the cathode rod (2) has a hanging ring (6) for hanging the hook (45); The telescopic end of the telescopic member (43) can drive the cathode rod (2) upward and away from the plating tank body (1), so that the weighing sensor (44) can monitor the change in the weight of the cathode rod (2).

3. The FPC nickel plating tank according to claim 2, characterized in that: The base (41) has two clamping members (7) that move toward or away from each other, and both clamping members (7) are covered with a water-absorbing layer (8) having water-absorbing properties. When the two clamping members (7) move toward each other, the water-absorbing layers (8) on the clamping members (7) can abut against and surround the cathode rod (2).

4. The FPC nickel plating tank according to claim 3, characterized in that: The water absorbing layer (8) is rotatably sleeved on the clamping member (7), and the water absorbing layer (8) is cylindrical. The rotation axis (72) of the water absorbing layer (8) on the clamping member (7) coincides with the axis of the water absorbing layer (8) itself, and the axes of the water absorbing layer (8) on the two clamping members (7) are parallel.

5. The FPC nickel plating tank according to claim 4, characterized in that: The clamping member (7) comprises a moving seat (71), a rotating shaft (72), a connecting sleeve (73), a guide rod (74) and a first power source (75); the moving seat (71) moves on the base (41); the rotating shaft (72) is rotatably connected to the moving seat (71), and the rotating shaft (72) is perpendicular to the moving direction of the moving seat (71); the first power source (75) is installed on the moving seat (71) and is used to drive the moving seat (71). The rotating shaft (72) rotates; the connecting sleeve (73) is coaxially sleeved and threadedly connected to the rotating shaft (72); the guide rod (74) is connected to the movable seat (71) and is parallel to the rotating shaft (72); and the connecting sleeve (73) is slidably sleeved on the guide rod (74) along an axial direction parallel to the rotating shaft (72); the water absorbing layer (8) is coaxially sleeved on the connecting sleeve (73), and the water absorbing layer (8) can be elastically deformed when under pressure; When the telescopic end of the telescopic member (43) is extended, one end of the water absorbing layer (8) along its own axial direction is opposite to the cathode rod (2); when the telescopic end of the telescopic member (43) is retracted, the other end of the water absorbing layer (8) along its own axial direction is opposite to the cathode rod (2).

6. The FPC nickel plating tank according to claim 3, characterized in that: The base (41) has a driving assembly (9) for driving the clamping member (7) to move, the driving assembly (9) comprising a driving rod (91) and a second power source (92); the driving rod (91) is rotatably connected to the base (41), and the second power source (92) is used to provide rotational power to the driving rod (91); The driving rod (91) has a first threaded portion (911) and a second threaded portion (912) which are coaxial and have opposite threads, and the two clamping members (7) are respectively threadedly connected to the first threaded portion (911) and the second threaded portion (912), and the two clamping members (7) are symmetrical relative to the through hole (5).

7. The FPC nickel plating tank according to claim 3, characterized in that: The mounting member (4) is provided with a guide tube (10) coaxially opposite to the through hole (5), and the guide tube (10) is used for the cathode rod (2) to pass through. When the telescopic member (43) drives the cathode rod (2) to leave the plating tank body (1) and the clamping member (7), the cathode rod (2) is still guided by the guide tube (10).

8. The FPC nickel plating tank according to claim 1, characterized in that: A track (11) is provided on one side of the plating tank body (1), a limit seat (12) is provided in the track (11) for sliding along the edge direction of the plating tank body (1), the limit seat (12) is connected to a first locking member (13) for locking itself to the plating tank body (1), and the mounting member (4) is connected to the limit seat (12).

9. The FPC nickel plating tank according to claim 8, characterized in that: The mounting member (4) moves on the limiting seat (12) in a direction approaching or moving away from the inner wall of the plating tank body (1) to adjust the distance between the cathode rod (2) and the plating tank body (1), and the limiting seat (12) has a second locking member (14) for positioning the mounting member (4).

10. The FPC nickel plating tank according to claim 1, characterized in that: A heating element (15) extending into the plating solution is installed in the plating tank body (1).

Images