Cyanide-free silver-tin alloy environmental protection electroplating solution circulating device

Abstract

The utility model provides silver tin alloy cyanide -free environmental protection electroplating solution circulating device relates to silver tin alloy processing technical field, the utility model discloses a circulating pump and filter box are arranged on one side of electroplating pool, the outlet of circulating pump is fixedly installed with the discharge pipe, the outlet of filter screen is fixedly installed on the one side of the import of circulating pump, the import of filter box is fixedly installed with the feed pipe, the several ends of feed pipe and discharge pipe are all installed on the one side of electroplating pool and penetrate, the inner wall of filter box is provided with convenient replacement device, convenient replacement device includes two sliding frames, the utility model discloses a convenient replacement device can be replaced through installing two filter screens in filter box, and alternating formula replacement uses, reaches under the condition of not influencing circulation filtration, can replace the filter screen of using a period of time and clean, avoids the impurity and blocks up the filter screen, improves the filtration effect.

Description

Technical Field

[0001] This utility model relates to the field of silver-tin alloy processing technology, and in particular to a cyanide-free environmentally friendly electroplating solution circulation device for silver-tin alloys. Background Technology

[0002] An electroplating solution circulation device is an environmentally friendly piece of equipment used in the electroplating process of silver-tin alloys. Its main function is to circulate, stir, and filter the electroplating solution within the electroplating tank to ensure the uniformity and stability of the solution and to remove impurities. This device typically includes a circulation pump, inlet pipe, outlet pipe, and filtration system.

[0003] In the electroplating process of silver-tin alloy, a circulating pump draws the electroplating solution into the feed pipe, where it is then filtered through a filter screen inside a filter box to remove impurities. The solution is then discharged into the electroplating tank through the discharge pipe for continued use, thus achieving a recycling effect. However, as the filtration time increases, impurities trapped on the filter screen accumulate, easily causing blockage and a significant decrease in filtration efficiency. This can even affect the normal circulation of the electroplating solution. In reality, cleaning or replacing a clogged filter screen requires suspending the circulation system, which not only interrupts the production process and reduces efficiency but may also cause fluctuations in the composition of the electroplating solution, affecting the stability of the plating quality. Utility Model Content

[0004] The technical problem this invention aims to solve is that as filtration time increases, impurities trapped on the filter screen accumulate, easily causing the filter screen to become clogged, leading to a significant decrease in filtration efficiency and even affecting the normal circulation of the electroplating solution. In reality, cleaning or replacing clogged filter screens requires pausing the operation of the circulation system, which not only interrupts the production process and reduces production efficiency but may also cause fluctuations in the composition of the electroplating solution due to shutdown, affecting the stability of the plating quality.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a silver-tin alloy cyanide-free environmentally friendly electroplating solution circulation device, including a circulation pump and a filter box set on one side of the electroplating tank. A discharge pipe is fixedly installed at the outlet of the circulation pump, and the outlet of the filter screen is fixedly installed on one side of the inlet of the circulation pump. A feed pipe is fixedly installed at the inlet of the filter box. Several ends of the feed pipe and the discharge pipe are installed through one side of the electroplating tank. The inner wall of the filter box is provided with a replacement device. The replacement device is achieved by installing two filter screens in the filter box for alternating use. This allows the filter screens to be replaced and cleaned after a period of use without affecting the circulation filtration, preventing impurities from clogging the filter screens and improving the filtration effect.

[0006] Preferably, the easy-replacement device includes two slides, with symmetrical sliding holes on one side of the inner wall of the filter screen and symmetrical rectangular grooves on one side of the bottom inner wall of the filter box. The slides are slidably installed in the inner wall of the sliding holes, with one end inserted into the inner wall of the rectangular groove. Slots are symmetrically provided on the inner wall of the slides. A protective mechanism is provided in the inner wall of the rectangular groove to protect the inner wall of the rectangular groove. A filter screen has inserts fixedly installed on both sides, and rubber blocks are fixedly installed on the outer surface of the inserts. The filter screen, inserts, and rubber blocks are respectively inserted into the inner wall of the slides and the inner walls of the two slots. A limiting mechanism is provided between one side of the slide and one side of the filter box to limit and fix the slide when it is pulled to a certain height.

[0007] The effect achieved by the above components is as follows: By setting up an easy-to-replace device, when using the filter box for filtration, the filter screen can be inserted into the interior of the slide, and then the inserts and rubber blocks on both sides can be inserted into the two slots respectively to fix the filter screen inside the slide. Then, pressing down on the slide causes it to slide inward in the sliding hole to a certain position, with one end inserted into the rectangular groove. The compression protection mechanism retracts, and then the limiting mechanism is used to fix and limit the installed slide. The other slide is placed outside the filter screen and fixed by the limiting mechanism, so that one end blocks the sliding hole. In this way, during the electroplating process of silver-tin alloy, The electroplating solution is pumped into the feed pipe using a circulating pump. Impurities in the solution are then filtered through a filter screen inside the filter box before being discharged back into the electroplating tank via the discharge pipe. This process achieves a recycling effect. As filtration time increases, and impurities accumulate on the filter screen, a replacement filter screen can be installed in another carriage. The same procedure is then followed to install the replacement screen into the filter box. Finally, the used carriage and filter screen are removed for easy replacement. This allows for filter screen replacement and cleaning without affecting the circulating filtration process, preventing impurities from clogging the filter screen and improving filtration efficiency.

[0008] Preferably, the longitudinal section of the filter screen is trapezoidal, and the size of the end of the filter screen closer to the circulation pump is smaller than the size of the other end.

[0009] The effect achieved by the above components is that by setting the longitudinal section of the filter screen to a trapezoidal shape, its inner wall can be inclined around the perimeter. In this way, during filtration, impurities will be washed away and gathered in the middle position along the curvature of the inclined surface, avoiding clogging around the filter screen and improving the filtration effect and efficiency.

[0010] Preferably, a handle block is fixedly installed on one side of the carriage, and the handle block is located on the side of the carriage away from the rectangular groove.

[0011] The effect achieved by the above components is that by setting a handle block, it is easy to pull one side of the carriage, making it convenient to operate and handle the carriage when changing it.

[0012] Preferably, the protective mechanism includes a protective plate, which is slidably installed in the inner wall of the rectangular groove and one side abuts against one side of the slide; and two springs, wherein the two ends of the springs are respectively fixedly installed on one side of the inner wall of the rectangular groove and one side of the protective plate.

[0013] The effect achieved by the above components is as follows: by setting up a protective mechanism, after the slide is pulled out of the rectangular groove, the protective plate will slide upward in the rectangular groove under the reset action of the spring, blocking the rectangular groove. In this way, when using another filter screen, impurities in the electroplating solution are not easy to enter the rectangular groove, thus avoiding affecting the subsequent insertion of the slide. When the slide is inserted into the rectangular groove, it will abut against the protective plate and move downward, and the spring will be compressed.

[0014] Preferably, the protective mechanism further includes two telescopic rods, wherein the outer surface of the telescopic rods is inserted into the inner wall of the spring, and both ends are respectively fixedly installed on one side of the inner wall of the rectangular groove and one side of the protective plate.

[0015] The effect achieved by the above components is that by setting up the telescopic rod, the inner wall of the spring can be supported and reinforced, making it less prone to damage during use and increasing its service life.

[0016] Preferably, the limiting mechanism includes two limiting rods, one end of which is rotatably mounted on one side of the filter box; two torsion springs, the inner wall of which is sleeved on the outer surface of one end of the limiting rod, and both ends are fixedly mounted on one side of the limiting rod and one side of the filter box, respectively; and slots are provided on both sides of the slide, with one end of the limiting rod inserted into the inner wall of the slot.

[0017] The effect achieved by the above components is as follows: By setting a limiting mechanism, when the filter screen is replaced, the limiting rod can be rotated to a certain angle, causing the torsion spring to deform and pull one end out of one of the slots. Then, the slide is pulled upward in the sliding hole to a certain position, so that the filter screen inside is completely pulled out of the filter box. At this time, the limiting rod is released, and under the reset action of the torsion spring, it is locked into another slot, fixing the slide after it is pulled out, which makes it easy to remove the filter screen. Similarly, it can also be limited and fixed when it is put into the filter box, so that it is not easy to shake during filtration.

[0018] Preferably, anti-slip blocks are fixedly installed on both sides of one end of the limiting rod, and the anti-slip blocks are located on both sides of the end away from the torsion spring.

[0019] The effect achieved by the above components is that by setting anti-slip blocks, the contact friction on both sides of one end of the limiting rod can be increased, making it more secure when it is locked into the slot.

[0020] The beneficial effects of this utility model are:

[0021] By setting up an easy-to-replace device, two filter screens can be installed in the filter box for alternating use. This allows for the replacement and cleaning of filter screens after a period of use without affecting the circulating filtration, preventing impurities from clogging the filter screens and improving the filtration effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a three-dimensional structural diagram of the filter box of this utility model;

[0024] Figure 3 for Figure 2 A three-dimensional schematic diagram of a local structure;

[0025] Figure 4 This is a three-dimensional structural diagram of the carriage of this utility model;

[0026] Figure 5 for Figure 4 A three-dimensional schematic diagram of a local structure.

[0027] Legend: 1. Circulating pump; 2. Easy-to-replace device; 3. Filter box; 4. Feed pipe; 5. Discharge pipe; 6. Electroplating tank; 21. Sliding hole; 22. Rectangular groove; 23. Protective mechanism; 231. Protective plate; 232. Spring; 233. Telescopic rod; 24. Slide; 25. Filter screen; 26. Insert block; 27. Rubber block; 28. Slot; 29. ​​Limiting mechanism; 291. Limiting rod; 292. Torsion spring; 293. Slot; 294. Anti-slip block; 210. Handle block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] In this embodiment:

[0032] Figure 1-5 The silver-tin alloy cyanide-free environmentally friendly electroplating solution circulation device shown includes a circulation pump 1 (model TP 32-100) and a filter box 3 installed on one side of the electroplating tank 6. A discharge pipe 5 is fixedly installed at the outlet of the circulation pump 1, and the outlet of the filter screen 25 is fixedly installed on one side of the inlet of the circulation pump 1. A feed pipe 4 is fixedly installed at the inlet of the filter box 3. Several ends of the feed pipe 4 and the discharge pipe 5 are installed through one side of the electroplating tank 6. The inner wall of the filter box 3 is equipped with a replacement device 2. This replacement device 2 allows for the alternating use of two filter screens 25 installed in the filter box 3, enabling the replacement and cleaning of the filter screens 25 after a period of use without affecting the circulation filtration. This prevents impurities from clogging the filter screens 25 and improves the filtration effect. It should be noted that the circulation pump 1 is a mature technology and equipment in the prior art; its internal structure, connection method, and principle will not be elaborated further.

[0033] Figure 1-5The replacement device 2 shown includes two slides 24. A sliding hole 21 is symmetrically provided on one side of the inner wall of the filter screen 25. A rectangular groove 22 is symmetrically provided on one side of the bottom inner wall of the filter box 3. The slides 24 are slidably installed in the inner wall of the sliding hole 21, and one end is inserted into the inner wall of the rectangular groove 22. Slots 28 are symmetrically provided on the inner wall of the slides 24. A protective mechanism 23 is provided, which is located in the inner wall of the rectangular groove 22 to protect the inner wall of the rectangular groove 22. A filter screen 25 has inserts 26 fixedly installed on both sides. A rubber block 27 is fixedly installed on the outer surface of the inserts 26. The filter screen 25, inserts 26, and rubber blocks 27 are respectively inserted into the inner wall of the slides 24 and the inner walls of the two slots 28. A limiting mechanism 29 is provided between one side of the slides 24 and one side of the filter box 3 to limit and fix the slides 24 when pulled to a certain height. By incorporating a replacement device 2, when using the filter box 3 for filtration, the filter screen 25 can be inserted into the slide 24, and then the inserts 26 and rubber blocks 27 on both sides can be inserted into the two slots 28 respectively, fixing the filter screen 25 inside the slide 24. Then, pressing down on the slide 24 causes it to slide inwards through the sliding hole 21 to a certain position, with one end inserted into the rectangular groove 22. The compression protection mechanism 23 then contracts. At this point, the limiting mechanism 29 fixes and limits the installed slide 24, while the other slide 24 is placed outside the filter screen 25 and fixed by the limiting mechanism 29, blocking one end of the sliding hole 21. This allows for proper electroplating of the silver-tin alloy. The electroplating solution is pumped into the feed pipe 4 by the circulating pump 1 and then filtered through the filter screen 25 inside the filter box 3 to remove impurities. The solution is then discharged into the electroplating tank 6 through the discharge pipe 5 for continued use, thus achieving a recycling effect. As the filtration time increases, when a certain amount of impurities accumulate on the filter screen 25, a replacement filter screen 25 can be installed in another carriage 24. The same operation is then performed to install it into the filter box 3. Finally, the used carriage 24 and filter screen 25 are removed for easy replacement. This allows the filter screen 25 to be replaced and cleaned without affecting the circulating filtration, preventing impurities from clogging the filter screen 25 and improving the filtration effect.

[0034] Figure 1-5The filter screen 25 shown has a trapezoidal cross-section, with the end of the filter screen 25 closer to the circulating pump 1 being smaller than the other end. By setting the longitudinal cross-section of the filter screen 25 to a trapezoidal shape, its inner wall is sloped around its perimeter. During filtration, impurities are flushed and collected in the middle position due to the curvature of the slope, preventing the filter screen 25 from becoming clogged and improving filtration effect and efficiency. A handle block 210 is fixedly installed on one side of the slide 24, located on the side of the slide 24 away from the rectangular groove 22. The handle block 210 allows for easy pulling of one side of the slide 24, facilitating operation and handling of the slide 24 during replacement.

[0035] Figure 1-5 The protective mechanism 23 shown includes a protective plate 231, which is slidably installed in the inner wall of the rectangular groove 22, with one side abutting against one side of the slide 24; and two springs 232, with their ends respectively fixedly installed on one side of the inner wall of the rectangular groove 22 and one side of the protective plate 231. By setting up the protective mechanism 23, after the slide 24 is pulled out of the rectangular groove 22, the protective plate 231, under the restoring action of the springs 232, will slide upwards in the rectangular groove 22, sealing the rectangular groove 22. This prevents impurities in the electroplating solution from easily entering the rectangular groove 22 when using another filter screen 25, thus avoiding affecting the subsequent insertion of the slide 24. When the slide 24 is inserted into the rectangular groove 22, it will abut against the protective plate 231 and move downwards, compressing the springs 232. The protective mechanism 23 also includes two telescopic rods 233, the outer surfaces of which are inserted into the inner wall of the spring 232, and both ends are fixedly installed on one side of the inner wall of the rectangular groove 22 and one side of the protective plate 231, respectively. By setting the telescopic rods 233, the inner wall of the spring 232 can be supported and reinforced, making it less prone to damage during use and extending its service life.

[0036] Figure 1-5The limiting mechanism 29 shown includes two limiting rods 291, one end of which is rotatably mounted on one side of the filter box 3; two torsion springs 292, the inner wall of which is sleeved on the outer surface of one end of the limiting rod 291, and both ends are fixedly mounted on one side of the limiting rod 291 and one side of the filter box 3, respectively; and slots 293 are provided on both sides of the slide 24, one end of which is inserted into the inner wall of the slot 293. By setting a limiting mechanism 29, when replacing the filter screen 25, the limiting rod 291 can be rotated to a certain angle, causing the torsion spring 292 to deform and pull one end out of one of the slots 293. Then, the slide 24 is pulled upward in the sliding hole 21 to a certain position, so that the filter screen 25 inside is completely pulled out of the filter box 3. At this time, the limiting rod 291 is released, and under the restoring action of the torsion spring 292, it is locked into the other slot 293, fixing the pulled-out slide 24, which facilitates the removal of the filter screen 25. Similarly, it can be limited and fixed when placed into the filter box 3, so that it does not shake during filtration. Anti-slip blocks 294 are fixedly installed on both sides of one end of the limiting rod 291. The anti-slip blocks 294 are set on both sides of the end away from the torsion spring 292. By setting the anti-slip blocks 294, the contact friction on both sides of one end of the limiting rod 291 can be increased, making it more secure when locked into the slot 293.

[0037] Working principle: When using filter box 3 for filtration, filter screen 25 can be inserted into the interior of slide 24. Then, the inserts 26 and rubber blocks 27 on both sides are inserted into the two slots 28 respectively, fixing filter screen 25 inside slide 24. Then, press slide 24 down to make it slide inward in the sliding hole 21 to a certain position, with one end inserted into the rectangular groove 22. The compression protection mechanism 23 retracts, and the limiting mechanism 29 is used to fix and limit the installed slide 24. The other slide 24 is placed outside filter screen 25 and fixed by the limiting mechanism 29, so that one end blocks the sliding hole 21. In this way, during the electroplating process of silver-tin alloy, the circulating... The circular pump 1 draws the electroplating solution into the feed pipe 4, and then filters it through the filter screen 25 inside the filter box 3 to remove impurities. The solution is then discharged into the electroplating tank 6 through the discharge pipe 5 for continued use, thus achieving a recycling effect. As the filtration time increases, when a certain amount of impurities accumulate on the used filter screen 25, a replacement filter screen 25 can be installed in another slide 24. The same operation is then performed to install it into the filter box 3. Finally, the used slide 24 and filter screen 25 are removed for easy replacement. This allows the filter screen 25 to be replaced and cleaned without affecting the circulating filtration, preventing impurities from clogging the filter screen 25 and improving the filtration effect.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cyanide-free environmentally friendly electroplating solution circulation device for silver-tin alloy, comprising a circulation pump (1) and a filter box (3) installed on one side of the electroplating tank (6), characterized in that: The outlet of the circulating pump (1) is fixedly installed with a discharge pipe (5), and the inlet of the filter box (3) is fixedly installed with a feed pipe (4). Several ends of the feed pipe (4) and the discharge pipe (5) are installed through one side of the electroplating tank (6). The inner wall of the filter box (3) is provided with a replacement device (2). The replacement device (2) includes two replaceable filter screens (25). The outlet of the filter screen (25) is fixedly installed on one side of the inlet of the circulating pump (1). The replacement device (2) is provided by installing two replaceable filter screens (25) in the filter box (3).

2. The silver-tin alloy cyanide-free environmentally friendly electroplating solution circulation device according to claim 1, characterized in that: The easy-to-replace device (2) includes two slides (24). The inner wall of the filter screen (25) is symmetrically provided with sliding holes (21) on one side. The bottom of the inner wall of the filter box (3) is symmetrically provided with rectangular grooves (22). The slides (24) are slidably installed in the inner wall of the sliding holes (21) and one end is inserted into the inner wall of the rectangular groove (22). The inner wall of the slides (24) is symmetrically provided with slots (28). The protective mechanism (23) is installed in the inner wall of the rectangular groove (22) to protect the inner wall of the rectangular groove (22); A filter screen (25) is provided with inserts (26) fixedly installed on both sides of the filter screen (25). A rubber block (27) is fixedly installed on the outer surface of the inserts (26). The filter screen (25), inserts (26), and rubber blocks (27) are respectively inserted into the inner wall of the slide (24) and the inner wall of the two slots (28). The limiting mechanism (29) is located between one side of the slide (24) and one side of the filter box (3) and is used to limit and fix the slide (24) when it is pulled to a certain height.

3. The silver-tin alloy cyanide-free environmentally friendly electroplating solution circulation device according to claim 2, characterized in that: The longitudinal section of the filter screen (25) is trapezoidal, and the size of the end of the filter screen (25) closer to the circulation pump (1) is smaller than that of the other end.

4. The silver-tin alloy cyanide-free environmentally friendly electroplating solution circulation device according to claim 2, characterized in that: A handle block (210) is fixedly installed on one side of the slide (24), and the handle block (210) is located on the side of the slide (24) away from the rectangular groove (22).

5. The silver-tin alloy cyanide-free environmentally friendly electroplating solution circulation device according to claim 2, characterized in that: The protective mechanism (23) includes a protective plate (231) which is slidably installed in the inner wall of the rectangular groove (22) and one side abuts against one side of the slide (24); Two springs (232) are fixedly installed at both ends on one side of the inner wall of the rectangular groove (22) and one side of the protective plate (231).

6. The silver-tin alloy cyanide-free environmentally friendly electroplating solution circulation device according to claim 5, characterized in that: The protective mechanism (23) also includes two telescopic rods (233), wherein the outer surface of the telescopic rods (233) is inserted into the inner wall of the spring (232), and both ends are fixedly installed on one side of the inner wall of the rectangular groove (22) and one side of the protective plate (231).

7. The silver-tin alloy cyanide-free environmentally friendly electroplating solution circulation device according to claim 2, characterized in that: The limiting mechanism (29) includes two limiting rods (291), one end of which is rotatably mounted on one side of the filter box (3); Two torsion springs (292) are fitted on the outer surface of one end of the limiting rod (291) and fixed at both ends on one side of the limiting rod (291) and one side of the filter box (3), respectively. The slide (24) has slots (293) on both sides, with one end of the limiting rod (291) inserted into the inner wall of the slot (293).

8. The silver-tin alloy cyanide-free environmentally friendly electroplating solution circulation device according to claim 7, characterized in that: Anti-slip blocks (294) are fixedly installed on both sides of one end of the limiting rod (291), and the anti-slip blocks (294) are located on both sides of the end away from the torsion spring (292).

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