Chemical nickel plating tank for circuit board

Abstract

The utility model discloses a chemical nickel plating bath for circuit board, including nickel plating bath body and lift frame, lift frame includes lift module, set up the mounting rack of lift module top and set up the transmission mechanism of mounting rack both sides, transmission mechanism includes drive motor, driven wheel and transmission belt, the driven wheel is rotatably connected to the side face of the mounting frame, the driving motor is connected with a driving wheel, the driving wheel and the driven wheel are connected in a matched mode through a transmission belt to form a chain type transmission structure, and the nickel plating tank body is located between the two transmission mechanisms. By arranging the lifting rack and the lifting module, the conveying mechanism as well as the clamp and the flitch clamped on the conveying mechanism can be driven to rise upwards, so that the flitch is far away from liquid in the chemical nickel-plating tank body, the flitch is prevented from being soaked in the chemical liquid for a long time, and the chemical nickel-plating effect of a product is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of nickel plating, in particular to an electroless nickel plating tank for circuit boards. Background Art

[0002] Electroless nickel plating, also known as electroless nickel plating or autocatalytic nickel electroplating, refers to the process in which nickel ions in an aqueous solution are reduced by a reducing agent under certain conditions and deposited on the surface of a solid substrate.

[0003] When nickel plating, a fixture is required to hold the material plate. The material plate is immersed in the electroless nickel plating tank body, and the fixture and the material plate held by the fixture are driven by a transmission mechanism to achieve uniform nickel plating. However, when the equipment stops working, the material plate is often still immersed in the liquid of the electroless nickel plating tank body. Long-term immersion of the material plate will make its nickel plating uneven and affect the product quality. Therefore, an electroless nickel plating tank that can separate the material plate and the chemical liquid in real time during electroless nickel plating is needed now. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an electroless nickel plating tank for circuit boards, which solves the problems in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An electroless nickel plating tank for circuit boards, including a nickel plating tank body and a lifting frame. The lifting frame includes a lifting module, a mounting frame arranged on the top of the lifting module, and transmission mechanisms arranged on both sides of the mounting frame. The transmission mechanism includes a driving motor, a driven wheel, and a transmission belt. The driven wheel is rotatably connected to the side of the mounting frame. The driving motor is connected with a driving wheel, and the driving wheel and the driven wheel are cooperatively connected through the transmission belt to form a chain transmission structure. The nickel plating tank body is located between the two transmission mechanisms.

[0006] Preferably, a plurality of fixture seats are arranged on the transmission belt.

[0007] Preferably, a positioning component is further arranged on the transmission mechanism, and the positioning component is close to the feeding end of the nickel plating tank body. The positioning component includes a first lifting cylinder, a first propulsion cylinder arranged on the first lifting cylinder, and a positioning seat. The positioning seat is provided with a slotted opening with gradually decreasing spacing from top to bottom. The movable end of the first propulsion cylinder is provided with a plug pin, and the plug pin penetrates through the side of the positioning seat and is inserted into the slotted opening.

[0008] Preferably, the transmission mechanism is provided with an automatic pressing component. The automatic pressing component is located on the right side of the positioning component. The automatic pressing component includes a fixed seat arranged on the mounting frame, a guide rod slidably connected to the fixed seat, a limiting part arranged at the bottom of the guide rod, and an extension part arranged at the top of the guide rod. The extension part is rotatably connected with a roller, and the roller is located directly above the fixture seat. The guide rod is sleeved with a spring, and the two ends of the spring respectively abut against the fixed seat and the limiting part.

[0009] Preferably, an ejecting assembly is further arranged on the transmission mechanism, and the ejecting assembly is close to the discharging end of the nickel plating tank body. The ejecting assembly includes a double-stroke lifting cylinder, a second propulsion cylinder arranged on the top of the double-stroke lifting cylinder, and a clamping seat arranged on the second propulsion cylinder. A clamping groove with a gradually decreasing distance from top to bottom and a closed bottom is arranged on the clamping seat.

[0010] Preferably, a heating system is arranged in the nickel plating tank body.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By arranging the lifting frame, the lifting module can drive the transmission mechanism, the fixture and the material plate clamped on the transmission mechanism to rise, so that the material plate is far away from the liquid in the electroless nickel plating tank body, preventing the material plate from being soaked in the chemical liquid for a long time and ensuring the electroless nickel plating effect of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Partial structural schematic diagram of the present utility model Figure 1 ;

[0014] Figure 2 Partial structural schematic diagram of the present utility model Figure 2 ;

[0015] Figure 3 Partial structural schematic diagram of the present utility model Figure 3 ;

[0016] Figure 4 Partial structural schematic diagram of the present utility model Figure 4 ;

[0017] Figure 5 Partial structural schematic diagram of the present utility model Figure 5 . DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] Please refer to Figures 1 to 5 As an embodiment provided by the present utility model: A chemical nickel plating tank for a circuit board includes a nickel plating tank body 10 and a lifting frame. The nickel plating tank body is used to load chemical liquid, and the material plate is immersed in the chemical liquid for chemical nickel plating. The lifting frame includes a lifting module 1, a mounting frame 2 provided at the top of the lifting module 1, and a transmission mechanism 20 provided on both sides of the mounting frame 2. The transmission mechanism 20 includes a driving motor 21, a driven wheel 22, and a transmission belt 23. The driven wheel 22 is rotatably connected to the side of the mounting frame 2. The driving motor 21 is connected with a driving wheel 24. The inner sides of the transmission belt 23 are respectively engaged with the driving wheel 24 and the driven wheel 22 to form an annular transmission structure. A plurality of fixture seats 25 are provided on the transmission belt 23. The fixture seats 25 are provided with grooves adapted to the fixtures. Both sides of the fixture are respectively inserted into the fixture seats 25 at the corresponding positions of the two transmission mechanisms, and the transmission belt 23 is driven to rotate in real time by the rotation of the driving motor 21. The nickel plating tank body 10 is located between the two transmission mechanisms. The fixture is driven from left to right, and the material plate is synchronously driven in the chemical liquid. The material plate is in full contact with the chemical liquid, so that nickel molecules are evenly adhered to the material plate, realizing nickel plating and improving the nickel plating effect.

[0021] Furthermore, when the production line needs to stop working, the driving motor 21 stops rotating, and the lifting module 1 drives the transmission mechanism, the fixture and the material plate clamped on the transmission mechanism to rise, so that the material plate is away from the liquid in the chemical nickel plating tank body 10, preventing the material plate from being immersed in the chemical liquid for a long time and ensuring the chemical nickel plating effect of the product.

[0022] A positioning component 30 is also provided on the transmission mechanism, and the positioning component 30 is close to the feeding end of the nickel plating tank body 10.

[0023] When feeding, the first lifting cylinder 34 drives the positioning seat 31 to rise. The transmission device inserts the fixture with the material plate into the slots 32 on the positioning seat 31 from top to bottom with gradually decreasing spacing. The pin 36 penetrates the side of the positioning seat 31 and inserts into the slot 32. At this time, the bottom of the slot 32 is in a blocked state, and the pin 36 prevents the fixture from passing through downward. The first lifting cylinder 34 drives downward to reset, making the positioning seat 31 close to the fixture seat 25. The first pushing cylinder 35 drives the pin 36 to push forward, and the pin 36 leaves the slot 32. The bottom of the slot 32 is in a connected state, and the fixture is embedded into the groove of the fixture seat 25 by gravity.

[0024] The transmission mechanism is provided with an automatic pressing-down assembly 40. The automatic pressing-down assembly 40 is located on the right side of the positioning assembly 30. After the fixture is embedded into the fixture seat 25, it is driven to the right by the transmission mechanism 20. The automatic pressing-down assembly 40 includes a fixed seat 41 arranged on the mounting frame 2, a guide rod 42 slidably connected to the fixed seat 41, a limiting part 43 arranged at the bottom of the guide rod 42, and an extension part 44 arranged at the top of the guide rod 42. The extension part 44 is rotatably connected with a roller 45. The roller 45 is located directly above the fixture seat 25. A spring 46 is sleeved on the guide rod 42. The two ends of the spring 46 are respectively in contact with the fixed seat 41 and the limiting part 43. Under the elastic force of the spring 46, the roller 45 always has a downward pressure. Some fixtures that are not fully embedded in the fixture seat 25 are in contact with the bottom of the roller 45, and the pressure of the roller 45 presses the fixture into the fixture seat 25 to prevent the fixture from detaching from the fixture seat 25 during the transmission process.

[0025] The transmission mechanism is also provided with an ejection assembly 50, and the ejection assembly 50 is close to the discharging end of the nickel plating tank body 10.

[0026] When discharging, the double-stroke lifting cylinder 51 drives the second pushing cylinder 52 and the positioning seat 53 to move upward for the first time. The positioning seat 53 is provided with a positioning groove 54 with gradually decreasing spacing from top to bottom and a closed bottom. The positioning groove 54 is sleeved with the fixture from bottom to top and pushes the fixture away from the fixture seat 25. The second pushing cylinder 52 drives the positioning seat 53 to move to the right. Finally, the double-stroke lifting cylinder 51 drives the second pushing cylinder 52 and the positioning seat 53 to move upward for the second time to reach the set position, and other transmission devices displace the fixture and the nickel-plated material plate to the next process.

[0027] The nickel plating tank body 10 is provided with a heating system. The heating system is a heating pipe 11 arranged on the inner wall of the nickel plating tank body 10, which can control the temperature of the chemical liquid in the nickel plating tank body 10 in real time to keep the best nickel plating effect.

[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A chemical nickel plating tank for a circuit board, comprising a nickel plating tank body and a lifting frame, characterized in that: The lifting frame includes a lifting module, a mounting frame arranged on the top of the lifting module, and a transmission mechanism arranged on both sides of the mounting frame. The transmission mechanism includes a driving motor, a driven wheel and a transmission belt. The driven wheel is rotatably connected to the side of the mounting frame. The driving motor is connected to a driving wheel. The driving wheel and the driven wheel are connected by a transmission belt to form a chain transmission structure. The nickel-plated trough is located between the two transmission mechanisms.

2. The chemical nickel plating tank for a circuit board according to claim 1, characterized in that: A plurality of clamp seats are arranged on the transmission belt.

3. The chemical nickel plating tank for a circuit board according to claim 1, characterized in that: A positioning component is also provided on the transmission mechanism, and the positioning component is close to the feeding end of the nickel-plated trough body. The positioning component includes a first lifting cylinder and a first propulsion cylinder and a positioning seat arranged on the first lifting cylinder. The positioning seat is provided with a slot with a gradually decreasing spacing from top to bottom. The movable end of the first propulsion cylinder is provided with a pin, which passes through the side of the positioning seat and is inserted into the slot.

4. The chemical nickel plating tank for a circuit board according to claim 1, characterized in that: The transmission mechanism is provided with an automatic pressing down assembly, which is located on the right side of the positioning assembly. The automatic pressing down assembly includes a fixed seat arranged on the mounting frame, a guide rod slidably connected to the fixed seat, a limiting portion arranged at the bottom of the guide rod, and an extension portion arranged at the top of the guide rod. The extension portion is rotatably connected to a roller, and the roller is located directly above the clamp seat. The guide rod is sleeved with a spring, and both ends of the spring respectively contact the fixed seat and the limiting portion.

5. The chemical nickel plating tank for a circuit board according to claim 1, characterized in that: The transmission mechanism is also provided with an ejection assembly, and the ejection assembly is close to the discharge end of the nickel-plated trough body. The ejection assembly includes a double-stroke lifting cylinder, a second propulsion cylinder arranged on the top of the double-stroke lifting cylinder, and a clamping seat arranged on the second propulsion cylinder. The clamping seat is provided with a clamping groove with a spacing gradually decreasing from top to bottom and a closed bottom.

6. The chemical nickel plating tank for a circuit board according to claim 1, characterized in that: A heating system is arranged in the nickel plating tank.

Images