Tin-nickel alloy electroplating solution stirring device

Abstract

The utility model discloses a tin-nickel alloy electroplate liquid stirring device which comprises a stirring barrel and a stirring frame, the stirring barrel is used for storing tin-nickel alloy electroplate liquid, the stirring frame is used for stirring the tin-nickel alloy electroplate liquid, the rear end of the stirring barrel is fixedly connected with an electric cabinet, and the upper end of the electric cabinet is fixedly connected with a connecting frame. A stirring transmission structure is fixedly mounted at the upper end of the connecting frame, and one end of the stirring frame is detachably mounted at the lower end of the stirring transmission structure. According to the tin-nickel alloy electroplating liquid stirring device, by arranging the pH value adjusting structure and the electroplating liquid filtering structure, the pH value of electroplating liquid can be adjusted in the electroplating liquid stirring and mixing process, and the situation that the tin-nickel alloy electroplating effect is affected due to the fact that the pH value of the electroplating liquid is too high or too low is avoided; precipitated impurities in the electroplating liquid are filtered out, and the situation that the structure and quality of a tin-nickel alloy coating, the tin-nickel alloy electroplating speed and the coating thickness are affected by the precipitated impurities is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tin-nickel alloy electroplating, in particular to a tin-nickel alloy electroplating liquid stirring device. Background Art

[0002] Tin-nickel alloy electroplating solution is an indispensable electroplating raw material in the process of tin-nickel alloy electroplating. It is mainly used to improve the performance of the surface of tin-nickel alloy. Its preparation method mainly involves stirring and mixing tin salt solution and nickel salt solution. However, during the stirring and mixing process of the electroplating solution, the following problems are prone to occur:

[0003] 1. During the stirring and mixing process, the pH value of the plating solution cannot be adjusted. If the pH value is too high, the tin-nickel alloy coating will easily become foggy and white, affecting the glossiness of the tin-nickel alloy. If the pH value is too low, the tin-nickel alloy coating will easily become dark brown, making the tin-nickel alloy brittle.

[0004] 2. During the stirring and mixing process, the precipitated impurities in the plating solution cannot be filtered out. The precipitated impurities are easy to interfere with the composition and stability of the plating solution, thereby affecting the structure and quality of the coating. They may also form an insulating layer, reducing the conduction efficiency of current in the plating solution, thereby affecting the electroplating speed and coating thickness.

[0005] Therefore, it is necessary for us to propose a tin-nickel alloy electroplating solution stirring device to solve the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a tin-nickel alloy electroplating liquid stirring device, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A tin-nickel alloy electroplating liquid stirring device comprises a stirring barrel and a stirring frame, wherein the stirring barrel is used to store the tin-nickel alloy electroplating liquid, and the stirring frame is used to stir the tin-nickel alloy electroplating liquid, the rear end of the stirring barrel is fixedly connected to an electric control box, the upper end of the electric control box is fixedly connected to a connecting frame, the upper end of the connecting frame is fixedly installed with a stirring transmission structure, one end of the stirring frame is detachably installed at the lower end of the stirring transmission structure, one side of the stirring barrel is provided with a pH adjustment structure, and the other side of the stirring barrel is provided with a plating liquid filtering structure;

[0009] The pH adjustment structure also includes a fixed shell, an inner wall of which is detachably mounted with an acid storage tank and an alkali storage tank, the acid storage tank is located on one side of the alkali storage tank, a control device No. 1 is fixedly mounted on the front end of the fixed shell, a mixing pump is detachably mounted on the upper end surface of the fixed shell, an acid spray pipe, a pH probe and an alkali spray pipe are fixedly mounted on one side of the mixing pump, the acid spray pipe is located on one side of the pH probe, and the alkali spray pipe is located on the other side of the pH probe.

[0010] Preferably, the electroplating liquid filtration structure also includes a filtrate storage box, a main water pump is fixedly installed at the front end of the filtrate storage box, an auxiliary water pump is fixedly installed at the rear end of the filtrate storage box, the upper end of the main water pump is detachably connected to a filtrate discharge pipe, a No. 2 control device is fixedly installed on one side of the filtrate storage box, a liquid suction pipe is detachably installed on one side of the upper end of the filtrate storage box, a connecting hose is detachably installed on one end of the liquid suction pipe, a liquid inlet groove is opened on one side of the inner wall of the filtrate storage box, and an electroplating liquid filter screen box is detachably installed on the upper end of the inner wall of the filtrate storage box.

[0011] Preferably, the upper ends of the acid storage tank and the alkali storage tank are connected to the interior of the mixing pump through a connecting pipe, and the mixing pump sucks acid and alkali liquid from the interior of the acid storage tank and the alkali storage tank and then discharges them from one end of the acid nozzle and the alkali nozzle, and one end of the pH value probe is coupled to the control module inside the No. 1 control device, and the control module controls the operation of the mixing pump by monitoring the pH value.

[0012] Preferably, a counterweight ring is provided at one end of the connecting hose so that the connecting hose is perpendicular to the bottom of the mixing barrel to facilitate the suction of impurities. One end of the filtrate discharge pipe and the suction pipe are both inserted into the top of the mixing barrel. The liquid inlet tank is connected to the interior of the suction pipe. The discharge volume of the main water pump should be greater than that of the auxiliary water pump. The connecting hose is made of polytetrafluoroethylene.

[0013] Preferably, one side of the fixed shell is fixedly connected to one side of the mixing barrel, and the other side of the fixed shell is movably connected to a door for limiting the positions of the acid storage tank and the alkali storage tank.

[0014] Preferably, the electric control box is used to control the power supply of the pH adjustment structure, the plating liquid filtering structure and the stirring transmission structure. The rear end of the stirring barrel is fixedly connected with a plating liquid discharge pipe, and the stirring frame is made of polytetrafluoroethylene.

[0015] Compared with the prior art, the utility model provides a tin-nickel alloy electroplating liquid stirring device, which has the following beneficial effects:

[0016] 1. A tin-nickel alloy electroplating liquid stirring device, through the set pH adjustment structure, during the stirring process of the electroplating liquid, the pH value probe can transmit the pH value of the electroplating liquid to the control module inside the first control device in real time, and control the operation of the adjustment pump according to the set value. If the pH value inside the electroplating liquid is higher than the set value, the adjustment pump discharges the acid in the acid storage tank from the acid nozzle to the stirring barrel until it is reduced to the set pH value range. If the pH value inside the electroplating liquid is lower than the set value, the adjustment pump discharges the alkali in the alkali storage tank from the alkali nozzle to the stirring barrel until it is increased to the set pH value range. The pH adjustment structure can adjust the pH of the electroplating liquid during the stirring and mixing process of the electroplating liquid to avoid the pH value of the electroplating liquid being too high or too low to affect the tin-nickel alloy electroplating effect.

[0017] 2. A tin-nickel alloy electroplating liquid stirring device, through the set electroplating liquid filtering structure, during the electroplating liquid stirring process, the auxiliary water pump can drive the suction tube to suck the precipitated impurities at the bottom of the stirring barrel from the connecting hose to the liquid inlet tank and discharge them into the electroplating liquid filter box, the precipitated impurities inside the electroplating liquid are blocked in the electroplating liquid filter box, the pure electroplating liquid directly flows into the filtrate storage box, and then the pure electroplating liquid is discharged into the stirring barrel through the main water pump and the filtrate discharge pipe. After multiple reciprocating cycles, the precipitated impurities in the electroplating liquid are completely filtered out. The electroplating liquid filtering structure can filter the precipitated impurities in the electroplating liquid during the stirring and mixing process to prevent the precipitated impurities from affecting the structure and quality of the tin-nickel alloy coating as well as the tin-nickel alloy electroplating speed and coating thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the medium pH adjustment structure 2 Figure 1 .

[0020] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of the medium pH adjustment structure 2 Figure 2 .

[0021] Figure 4 For this utility model Figure 1 Schematic diagram of the structure of the electroplating liquid filtration structure 3.

[0022] Figure 5 For this utility model Figure 1 A magnified view of the structure at center.

[0023] In the figure: 1. stirring barrel; 2. pH adjustment structure; 3. electroplating liquid filtering structure; 4. stirring frame; 5. stirring transmission structure; 6. connecting frame; 7. electric control box; 21. acid storage tank; 22. alkali storage tank; 23. No. 1 control device; 24. acid spray pipe; 25. pH probe; 26. alkali spray pipe; 27. mixing pump; 28. fixed shell; 31. filtrate storage box; 32. connecting hose; 33. main water pump; 34. No. 2 control device; 35. filtrate discharge pipe; 36. electroplating liquid filter box; 37. liquid inlet tank; 38. liquid suction pipe; 39. auxiliary water pump. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1 As shown, a tin-nickel alloy electroplating liquid stirring device comprises a stirring barrel 1 and a stirring frame 4, wherein the stirring barrel 1 is used to store the tin-nickel alloy electroplating liquid, and the stirring frame 4 is used to stir the tin-nickel alloy electroplating liquid, the rear end of the stirring barrel 1 is fixedly connected with an electric control box 7, the upper end of the electric control box 7 is fixedly connected with a connecting frame 6 for fixing the position of a stirring transmission structure 5, the upper end of the connecting frame 6 is fixedly installed with a stirring transmission structure 5 for providing a rotational power for the stirring frame 4, one end of the stirring frame 4 is detachably installed at the lower end of the stirring transmission structure 5, and the stirring frame 4 is convenient for replacing and disassembling, a pH adjustment structure 2 is arranged on one side of the stirring barrel 1, and a plating liquid filtering structure 3 is arranged on the other side of the stirring barrel 1;

[0026] like Figure 2 , Figure 3 As shown, the pH adjustment structure 2 also includes a fixed shell 28, and the inner wall of the fixed shell 28 is detachably mounted with an acid storage tank 21 and an alkali storage tank 22, the acid storage tank 21 is located on one side of the alkali storage tank 22, the acid in the acid storage tank 21 is made of phosphoric acid, and the alkali in the alkali storage tank 22 is made of potassium hydroxide, a control device No. 1 is fixedly mounted on the front end of the fixed shell 28, a mixing pump 27 is detachably mounted on the upper end surface of the fixed shell 28, an acid spray pipe 24, a pH value probe 25 and an alkali spray pipe 26 are fixedly mounted on one side of the mixing pump 27, the acid spray pipe 24 is located on one side of the pH value probe 25, and the alkali spray pipe 26 is located on the other side of the pH value probe 25.

[0027] like Figure 4 , Figure 5As shown, the plating liquid filtering structure 3 also includes a filtrate storage box 31, a main water pump 33 is fixedly installed at the front end of the filtrate storage box 31 for sucking precipitated impurities in the plating liquid, an auxiliary water pump 39 is fixedly installed at the rear end of the filtrate storage box 31 for discharging the filtered plating liquid, the upper end of the main water pump 33 is detachably connected with a filtrate discharge pipe 35, a No. 2 control device 34 is fixedly installed on one side of the filtrate storage box 31, a suction pipe 38 is detachably installed on one side of the upper end of the filtrate storage box 31, and a connecting hose 32 is detachably installed on one end of the suction pipe 38, a liquid inlet groove 37 is provided on one side of the inner wall of the filtrate storage box 31, and a plating liquid filter box 36 is detachably installed on the upper end of the inner wall of the filtrate storage box 31. The detachable design can quickly clean the precipitated impurities filtered out.

[0028] like Figure 2 , Figure 3 As shown, the upper ends of the acid storage tank 21 and the alkali storage tank 22 are connected to the interior of the mixing pump 27 through a connecting pipe. The mixing pump 27 sucks acid and alkali liquid from the interior of the acid storage tank 21 and the alkali storage tank 22 and then discharges them from one end of the acid nozzle 24 and the alkali nozzle 26. One end of the pH value probe 25 is coupled to the control module inside the No. 1 control device 23, and its control module controls the operation of the mixing pump 27 by monitoring the pH value.

[0029] like Figure 4 , Figure 5 As shown, a counterweight ring is provided at one end of the connecting hose 32, so that the connecting hose 32 is perpendicular to the bottom of the mixing barrel 1, which is convenient for the suction of impurities. One end of the filtrate discharge pipe 35 and the suction pipe 38 are both inserted into the top of the mixing barrel 1, which is convenient for the suction and discharge of the electrolyte and prevents the electrolyte from dripping onto the ground during transportation. The liquid inlet tank 37 is connected to the inside of the suction pipe 38. The drainage volume of the main water pump 33 should be greater than that of the auxiliary water pump 39 to avoid overflowing of the filtrate storage box. The material of the connecting hose 32 is polytetrafluoroethylene to prevent the plating liquid from affecting the service life of the connecting hose 32.

[0030] like Figure 1 As shown, one side of the fixed shell 28 is fixedly connected to one side of the mixing barrel 1 , and the other side of the fixed shell 28 is movably connected to a box door for limiting the positions of the acid storage tank 21 and the alkali storage tank 22 .

[0031] like Figure 1 As shown, the electric control box 7 is used to control the power supply of the pH adjustment structure 2, the plating liquid filtering structure 3 and the stirring transmission structure 5. The rear end of the stirring barrel 1 is fixedly connected with a plating liquid discharge pipe for discharging the plating liquid after stirring and preparation. The material of the stirring frame 4 is polytetrafluoroethylene to prevent the plating liquid from affecting the service life of the stirring frame 4.

[0032] How it works

[0033] The utility model discloses a tin-nickel alloy electroplating liquid stirring device. When in use, the solution is poured into the stirring barrel 1, the power supply of the stirring transmission structure 5 is turned on to drive the stirring frame 4 to stir and mix the solution, and then the tin salt and the nickel salt are poured in turn to dissolve the tin salt and the nickel salt in the solution. Finally, the electroplating liquid discharge pipe valve is opened to discharge the stirred and prepared tin-nickel alloy electroplating liquid, thereby completing the stirring and preparation of the tin-nickel alloy electroplating liquid. The pH adjustment structure 2 is set. During the stirring process of the electroplating liquid, the pH value probe 25 can transmit the pH value of the electroplating liquid to the control module inside the first control device 23 in real time, and the mixing pump 27 is controlled to operate according to the set value. If the pH value inside the electroplating liquid is higher than the set value, the mixing pump 27 discharges the acid inside the acid storage tank 21 from the acid spray pipe 24 to the stirring barrel 1 until it is reduced to the set pH value range. If the pH value inside the electroplating liquid is lower than the set value, the mixing pump 27 discharges the alkali inside the alkali storage tank 222 from the alkali spray pipe 26 to the stirring barrel. 1 until the pH value inside rises to the set range. The pH adjustment structure 2 can adjust the pH value of the plating solution during the stirring and mixing process of the plating solution to prevent the pH value of the plating solution from being too high or too low to affect the tin-nickel alloy electroplating effect. The plating solution filtering structure 3 is set. During the stirring process of the plating solution, the auxiliary water pump 39 can drive the liquid suction pipe 38 to suck the precipitated impurities at the bottom of the stirring barrel 1 from the connecting hose 32 to the liquid inlet tank 37 and discharge them into the plating solution filter box 36. The precipitated impurities inside the plating solution are blocked in the plating solution filter box 36, and the pure plating solution directly flows into the filtrate storage box 31. Then, the pure plating solution is discharged into the stirring barrel 1 through the main water pump 33 and the filtrate discharge pipe 35. After reciprocating for many times, the precipitated impurities in the plating solution are filtered out. The plating solution filtering structure 3 can filter the precipitated impurities in the plating solution during the stirring and mixing process to prevent the precipitated impurities from affecting the structure and quality of the tin-nickel alloy plating layer as well as the tin-nickel alloy plating speed and plating thickness.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tin-nickel alloy electroplating liquid stirring device, comprising a stirring barrel (1) and a stirring frame (4), wherein the stirring barrel (1) is used to store the tin-nickel alloy electroplating liquid, and the stirring frame (4) is used to stir the tin-nickel alloy electroplating liquid, the rear end of the stirring barrel (1) is fixedly connected to an electric control box (7), the upper end of the electric control box (7) is fixedly connected to a connecting frame (6), the upper end of the connecting frame (6) is fixedly installed with a stirring transmission structure (5), and one end of the stirring frame (4) is detachably installed at the lower end of the stirring transmission structure (5), characterized in that: A pH adjustment structure (2) is provided on one side of the stirring barrel (1), and a plating liquid filtering structure (3) is provided on the other side of the stirring barrel (1); The pH adjustment structure (2) further comprises a fixed shell (28), the inner wall of which is detachably mounted with an acid storage tank (21) and an alkali storage tank (22), the acid storage tank (21) being located on one side of the alkali storage tank (22), a control device (23) being fixedly mounted on the front end of the fixed shell (28), a mixing pump (27) being detachably mounted on the upper end surface of the fixed shell (28), an acid spray pipe (24), a pH probe (25) and an alkali spray pipe (26) being fixedly mounted on one side of the mixing pump (27), the acid spray pipe (24) being located on one side of the pH probe (25), and the alkali spray pipe (26) being located on the other side of the pH probe (25).

2. The tin-nickel alloy electroplating solution stirring device according to claim 1, characterized in that: The electroplating liquid filtering structure (3) also includes a filtrate storage box (31), a main water pump (33) is fixedly installed at the front end of the filtrate storage box (31), an auxiliary water pump (39) is fixedly installed at the rear end of the filtrate storage box (31), the upper end of the main water pump (33) is detachably connected to a filtrate discharge pipe (35), a No. 2 control device (34) is fixedly installed on one side of the filtrate storage box (31), a liquid suction pipe (38) is detachably installed on one side of the upper end of the filtrate storage box (31), and a connecting hose (32) is detachably installed on one end of the liquid suction pipe (38), a liquid inlet groove (37) is opened on one side of the inner wall of the filtrate storage box (31), and a plating liquid filter box (36) is detachably installed on the upper end of the inner wall of the filtrate storage box (31).

3. The tin-nickel alloy electroplating solution stirring device according to claim 1, characterized in that: The upper ends of the acid storage tank (21) and the alkali storage tank (22) are connected to the interior of the mixing pump (27) through a connecting pipe. The mixing pump (27) sucks acid and alkali from the interior of the acid storage tank (21) and the alkali storage tank (22) and discharges the acid and alkali from one end of the acid nozzle (24) and the alkali nozzle (26). One end of the pH probe (25) is coupled to a control module inside a control device (23). The control module controls the operation of the mixing pump (27) by monitoring the pH value.

4. The tin-nickel alloy electroplating solution stirring device according to claim 2, characterized in that: A weight ring is provided at one end of the connecting hose (32), so that the connecting hose (32) is perpendicular to the bottom of the mixing barrel (1) to facilitate the suction of impurities. One end of the filtrate discharge pipe (35) and the liquid suction pipe (38) are both inserted into the top of the mixing barrel (1). The liquid inlet tank (37) is connected to the inside of the liquid suction pipe (38). The discharge volume of the main water pump (33) should be greater than that of the auxiliary water pump (39). The material of the connecting hose (32) is polytetrafluoroethylene.

5. The tin-nickel alloy electroplating solution stirring device according to claim 3, characterized in that: One side of the fixed shell (28) is fixedly connected to one side of the mixing barrel (1), and the other side of the fixed shell (28) is movably connected to a box door for limiting the positions of the acid storage tank (21) and the alkali storage tank (22).

6. The tin-nickel alloy electroplating solution stirring device according to any one of claims 1 to 5, characterized in that: The electric control box (7) is used to control the power supply of the pH adjustment structure (2), the electroplating liquid filtering structure (3) and the stirring transmission structure (5); the rear end of the stirring barrel (1) is fixedly connected with an electroplating liquid discharge pipe; and the stirring frame (4) is made of polytetrafluoroethylene.

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