A device for removing impurities from chromium plating solution for automobile interior decoration parts and a method for using the same

Abstract

The present invention discloses an impurity removal device for chrome plating solution for automotive interior parts and a method for using the device. The device comprises a housing, a filter unit, and a cooling unit. The cooling unit comprises a cooling plate, a condenser, an injection pipe, a rotating member, and an annular magnetic drive. The cooling plate is horizontally disposed above the filter unit. The condenser is disposed below the cooling plate and provides cooling for the cooling plate. The injection pipe is disposed above the cooling plate along the axis of the cooling plate, and the diameter of the cooling plate is greater than that of the injection pipe. The rotating member is rotatably disposed on the cooling plate along the axis of the cooling plate. The rotating member has a radial structure and is composed of multiple rotating plates evenly arranged around the axis of the cooling plate. The annular magnetic drive is used to drive the rotating member to rotate. The present invention can cool the plating solution before filtration, while also preventing impurities from clogging the cooling unit, thereby ensuring the quality of the plating solution discharged back into the oxidation tank.

Description

Technical Field

[0001] The present invention relates to the technical field of electroplating solution impurity removal, in particular to an impurity removal device for chromium plating solution of automobile interior decoration parts and a use method thereof. Background Art

[0002] Most existing impurity removal devices remove impurities through a filter after a long period of sedimentation. The impurity removal efficiency is low and the impurity removal effect is poor. In addition, they do not have the function of cooling the electroplating solution. During the impurity removal process, due to excessive impurities, when the device is cleaned later, it is very easy to cause blockage of related components, resulting in the device being unable to work normally.

[0003] A Chinese utility model patent (authorization announcement number CN215517714U) discloses a plating liquid impurity removal device, comprising a base plate, a cooling box, a condenser, a condensing tube, a first raised platform, a transfer box, a second raised platform, a recovery box, and a discharge mechanism. The base plate is fixedly mounted with a first raised platform, the top of the first raised platform is fixedly mounted with a cooling box, a condenser is fixedly mounted on one side of the outer wall of the cooling box, a condensing tube is provided on the side of the cooling box close to the condenser, and both ends of the condensing tube pass through the cooling box and extend to the outside of the cooling box. The two ends of the condenser are respectively connected to the air outlet and air inlet of the condenser. A feed port is opened in the middle of the top of the cooling box. A second raised platform is fixedly installed on the bottom plate on the right side of the first raised platform. A transfer box is fixedly installed on the top of the second raised platform. The transfer box is provided with a filtering mechanism for preliminary filtration of the electroplating liquid. A discharge mechanism for transporting the electroplating liquid is provided between the cooling box and the transfer box. A recovery box is also installed on the bottom plate on the right side of the second raised platform. The recovery box and the transfer box are also connected through the discharge mechanism.

[0004] Although the above scheme improves the impurity removal effect, the filter plate is prone to clogging after long-term use, and the filter plate needs to be replaced regularly. In order to overcome the above problem, there are also devices in the prior art that can prevent the filter plate from being blocked during use. For example, a Chinese utility model patent (authorization announcement number CN222313375U) discloses an impurity removal and filtration device for metal electroplating liquid. By making the filter plate swing back and forth rapidly, impurities can be discharged more quickly, but some impurities will still remain on the filter plate, and the self-cleaning effect is poor. Frequent swinging will cause the hinges of the filter plate to wear too quickly, and will also reduce the service life of the linear drive used to drive the filter plate to swing. At the same time, chromium plating solution usually needs to be cooled during filtration. If the plating solution is cooled first, some impurities dissolved in the plating solution will precipitate, and the total amount of solid impurities in the plating solution will increase, which will easily lead to the outlet of the cooling box being blocked. The cooling box needs to be cleaned regularly. If the plating solution is filtered first and then cooled, solid impurities will precipitate in the cooled plating solution, resulting in a small amount of impurities still in the filtered plating solution. Summary of the Invention

[0005] In response to the above problems, a device for removing impurities from chrome plating liquid for automotive interior parts and a method for using the same are provided. A cooling plate is arranged on the upper part of a filter unit, and an injection pipe that can guide the plating liquid to the cooling plate is vertically arranged on the upper part of the cooling plate. The lower end of the injection pipe points to the center of the cooling plate. The plating liquid is guided by the injection pipe to fall on the center position of the cooling plate, and then flows along the radial direction of the cooling plate. During this process, the cooling plate cools the flowing plating liquid, thereby improving the cooling effect. At the same time, a rotating part is also rotatably arranged on the cooling plate. The rotation speed of the rotating part is lower than 60r / min. The rotating part can guide the discharge of the plating liquid and impurities remaining on the cooling plate.

[0006] In order to solve the problems of the prior art, the present invention provides an impurity removal device for chrome plating solution of automobile interior parts, comprising a housing, a filtering unit and a cooling unit;

[0007] The cooling unit includes a cooling plate, a condenser tube, an injection tube, a rotating part and an annular magnetic drive;

[0008] The cooling plate is horizontally arranged above the filter unit;

[0009] The condenser is arranged at the lower part of the cooling plate and provides cooling for the cooling plate;

[0010] The injection pipe is arranged above the cooling plate along the axis of the cooling plate. The injection pipe is used to guide the chrome plating solution to the upper part of the cooling plate. The diameter of the cooling plate is larger than the diameter of the injection pipe.

[0011] The rotating member is arranged on the cooling disk and rotates along the axis of the cooling disk. The rotating member has a radial structure and is composed of multiple rotating plates. The rotating plates are evenly arranged around the axis of the cooling disk. The lower end surfaces of the rotating plates are always in contact with the upper end surface of the cooling disk. The circular sweep area formed by the rotating member when it rotates completely covers the upper part of the cooling disk.

[0012] The annular magnetic drive is used to drive the rotating part to rotate.

[0013] Preferably, the filter unit includes a synchronous belt, a liquid storage tank and a filter screen;

[0014] The synchronous belt is set in the shell. The upper end face of the synchronous belt is called the filter end face. The filter end face is tilted upward, and the synchronous belt at the filter end face rotates from low to high.

[0015] There are multiple liquid storage tanks evenly arranged on the synchronous belt;

[0016] The filter screen is arranged in the liquid storage tank.

[0017] Preferably, a guiding slope is obliquely provided at one end of the rotating plate, and the angle between the extending direction of the guiding slope and the extending direction of the rotating plate is an acute angle.

[0018] Preferably, the cooling unit further comprises a guide shell, which is a funnel-shaped structure, and the guide shell cover is arranged on the periphery of the cooling plate.

[0019] Preferably, a partition is vertically provided at the lower part of the filter unit, which separates the bottom of the shell into a liquid chamber and a solid chamber. The lower part of the guide shell is provided with an outlet for discharging the electroplating solution, and the outlet is located directly above the liquid chamber.

[0020] Preferably, the cooling unit further comprises a first scraper, a first extension rod and a spring;

[0021] The first scraper is arranged on a side of the rotating plate close to the guide shell and rotates synchronously with the rotating plate;

[0022] The first extension rod is fixedly arranged at the end of the first scraper along the extension direction of the rotating plate, and the first extension rod extends into the rotating plate along the length direction of the rotating plate and is slidably engaged with the rotating plate;

[0023] The spring is arranged between the first scraper and the rotating plate along the extending direction of the first extension rod. Both ends of the spring are fixedly connected to the first scraper and the rotating plate respectively, and the spring is always in a compressed state.

[0024] Preferably, a second extension rod is fixedly provided on the upper part of the rotating part along the axis of the cooling plate, the second extension rod extends into the injection pipe, a second scraper is fixedly provided on the side wall of the second extension rod, and the second scraper slides toward the end of the injection pipe and cooperates with the inner wall of the injection pipe.

[0025] Preferably, a stirring blade is rotatably provided in the liquid chamber, and the stirring blade is driven by magnetic force.

[0026] Preferably, the housing further includes a spiral blade, a second rotary driver and a discharge port;

[0027] The spiral blade is arranged at the bottom of the solid cavity in a manner rotating along the width direction of the shell;

[0028] The second rotary driver is disposed on the housing and is used to drive the spiral blade to rotate;

[0029] The discharge port is opened on the side wall of the shell at the end of the spiral blade.

[0030] The present invention also relates to a method for using a device for removing impurities from a chromium plating solution for automobile interior parts. The device is used to remove impurities from a chromium plating solution for automobile interior parts. The specific steps are as follows:

[0031] S1. The electroplating solution is injected from the upper part of the injection pipe. The injection pipe guides the electroplating solution to the center of the cooling plate. The electroplating solution then flows freely in the radial direction of the cooling plate. The condenser provides real-time cooling for the cooling plate.

[0032] S2. The rotating member rotates when the plating liquid is discharged onto the cooling plate. The rotation speed of the rotating member is less than 60 r / min. The plating liquid and impurities remaining on the cooling plate are guided by the rotating member and discharged to the filter unit.

[0033] S3. The filtering unit filters the cooled electroplating solution.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The present invention sets a cooling plate on the upper part of the filter unit, and at the same time sets an injection pipe vertically on the upper part of the cooling plate to guide the plating liquid to the cooling plate. The lower end of the injection pipe points to the center of the cooling plate. The plating liquid is guided by the injection pipe to fall on the center of the cooling plate, and then flows along the radial direction of the cooling plate. During this process, the cooling plate cools the flowing plating liquid, thereby improving the cooling effect. At the same time, a rotating part is also rotatably set on the cooling plate, and the rotation speed of the rotating part is lower than 60r / min. The rotating part can guide the plating liquid and impurities remaining on the cooling plate to be discharged. In summary, the present invention can complete the cooling of the plating liquid before filtration, and at the same time, it can also avoid the situation where impurities remain in the cooling unit during the cooling process, avoid the impurities clogging the cooling unit, and at the same time, avoid the situation where impurities precipitate out of the plating liquid after passing through the filter unit due to the need to cool it, thereby ensuring the quality of the plating liquid discharged back into the oxidation tank.

[0036] 2. After the electroplating liquid is cooled, it falls into the filter unit, the synchronous belt is in a continuous rotation state, and the filter rotates synchronously with the synchronous belt. When the filter moves to the filter end face, the filter moves from the lower end to the higher end of the filter end face, and the impurities in the electroplating liquid are intercepted by the filter, and the electroplating liquid can pass through the filter smoothly. The liquid storage tank restricts the free flow of the electroplating liquid on the filter end face, thereby avoiding some impurities from being washed down by the flowing electroplating liquid, thereby improving the separation effect. When the synchronous belt drives the filter to leave the filter end face, the end face of the filter that receives impurities faces vertically downward, and the impurities on the filter are discharged under the action of its own weight, thereby realizing the self-cleaning function of the filter and avoiding regular manual cleaning of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The present invention is a three-dimensional schematic diagram of a device for removing impurities from chromium plating solution for automobile interior decoration parts.

[0038] Figure 2 The present invention is a side view of a device for removing impurities from chromium plating solution for automobile interior decoration parts.

[0039] Figure 3 The present invention is a device for removing impurities from chromium plating solution for automobile interior decoration parts. Figure 2 Schematic cross-sectional view at AA in the middle.

[0040] Figure 4 This is a cutaway perspective diagram of a chromium plating solution impurity removal device for automotive interior parts according to the present invention. Figure 1 .

[0041] Figure 5 The present invention is a device for removing impurities from chromium plating solution for automobile interior decoration parts. Figure 4 A partial enlarged schematic diagram of point B in the middle.

[0042] Figure 6 The present invention is a device for removing impurities from chromium plating solution for automobile interior decoration parts. Figure 4 A partial enlarged schematic diagram of point C in the middle.

[0043] Figure 7 This is a cutaway perspective diagram of a chromium plating solution impurity removal device for automotive interior parts according to the present invention. Figure 2 .

[0044] Figure 8 The present invention is a device for removing impurities from chromium plating solution for automobile interior decoration parts. Figure 7 A local enlarged schematic diagram of point D in the middle.

[0045] Figure 9 The present invention is a three-dimensional schematic diagram of a chromium plating solution impurity removal device for automobile interior parts with the outer shell removed.

[0046] Figure 10The present invention is a stereoscopic schematic diagram of a chromium plating solution impurity removal device for automobile interior decoration parts with the outer shell and the guide shell removed.

[0047] Figure 11 The present invention is a device for removing impurities from chromium plating solution for automobile interior decoration parts. Figure 10 A partial enlarged schematic diagram of point E in the middle.

[0048] The numbers in the figure are:

[0049] 1. Casing; 11. Partition; 111. Liquid chamber; 1111. Stirring blade; 112. Solid chamber; 1121. Spiral blade; 1122. Second rotary driver; 1123. Discharge port; 2. Filter unit; 21. Synchronous belt; 22. Liquid storage tank; 23. Filter screen; 24. Drive wheel; 25. First rotary driver; 26. Fan; 3. Cooling unit; 31. Cooling plate; 311. Condenser; 32. Injection pipe; 33. Rotating part; 331. Rotating plate; 332. Guide slope; 333. First scraper; 334. First extension rod; 335. Spring; 336. Second extension rod; 337. Second scraper; 34. Annular magnetic driver; 35. Guide shell. DETAILED DESCRIPTION

[0050] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] Reference Figure 1-Figure 4 、 Figure 6 、 Figure 8 and Figure 10 : A device for removing impurities from chrome plating solution for automobile interior parts, comprising a housing 1, a filter unit 2 and a cooling unit 3;

[0052] The cooling unit 3 includes a cooling plate 31, a condensing pipe 311, an injection pipe 32, a rotating member 33 and an annular magnetic drive 34;

[0053] The cooling plate 31 is horizontally arranged above the filter unit 2;

[0054] The condenser 311 is provided at the lower portion of the cooling plate 31 and provides cooling for the cooling plate 31;

[0055] The injection pipe 32 is arranged above the cooling plate 31 along the axial direction of the cooling plate 31. The injection pipe 32 is used to guide the chrome plating solution to the upper part of the cooling plate 31. The diameter of the cooling plate 31 is larger than the diameter of the injection pipe 32.

[0056] The rotating member 33 is rotatably mounted on the cooling disk 31 along its axis. The rotating member 33 has a radial structure and is composed of a plurality of rotating plates 331. The rotating plates 331 are evenly arranged around the axis of the cooling disk 31. The lower end surfaces of the rotating plates 331 are in constant contact with the upper end surface of the cooling disk 31. The circular sweep area formed by the rotating member 33 when rotating completely covers the upper portion of the cooling disk 31.

[0057] The annular magnetic driver 34 is used to drive the rotating member 33 to rotate.

[0058] In the process of removing impurities from the electroplating solution, in addition to removing solid impurities, it is also necessary to control the temperature of the electroplating solution within a constant temperature range. This is because the electroplating solution will heat up during use. The existing impurity removal device needs to cool the electroplating solution before or after removing impurities from the electroplating solution, and then the electroplating solution can be discharged back into the oxidation tank used for chromium plating of automotive interior parts. If the plating solution is cooled before impurities are removed, impurities dissolved in the plating solution may be precipitated. Existing cooling methods mainly include direct cooling and indirect cooling. Direct cooling involves transporting the plating solution to a refrigerator for cooling, and then transporting the plating solution to an oxidation tank. However, this may cause scaling of the evaporator in the refrigerator, requiring regular cleaning. Indirect cooling involves laying titanium tubes in the oxidation tank, but this may result in uneven cooling and scaling near the titanium tubes. Therefore, if the plating solution is cooled before filtration, the plating solution may contain more solid impurities, which may easily lead to clogging of the refrigerator. If the plating solution is cooled after filtration, a small amount of impurities may be precipitated from the plating solution. Although this may extend the service life of the refrigerator, the accumulated impurities may still clog the refrigerator over time. Since the plating solution is recycled, as more and more impurities accumulate in the refrigerator, the plating solution discharged back into the oxidation tank may carry away some of the accumulated impurities, which may affect the electroplating effect. The refrigerator will be referred to as the cooling unit 3 hereinafter. This is because although both the refrigerator and the cooling unit 3 have cooling functions, their structures are quite different. Therefore, the refrigerator will be referred to as the cooling unit 3 hereinafter.

[0059] In order to avoid the above situation, the existing electroplating liquid impurity removal device is optimized and designed so that the impurity removal device first cools the electroplating liquid and then filters it. At the same time, the impurities precipitated during cooling can be completely discharged into the filter unit 2, so that the cooling unit 3 will not be blocked by impurities when cooling the electroplating liquid. At the same time, since the electroplating liquid is cooled in advance, the impurities in the electroplating liquid that are caused by filtering first and then cooling are avoided. The quality of the electroplating liquid when it is discharged into the oxidation tank is improved. The specific structure and working process of the present invention are as follows:

[0060] The cooling element 31 is provided with a condenser 311 and a cooling element 312, and the cooling element 31 is provided with a condenser 311. The cooling element 31 is provided with a condenser 311 and a cooling element 312 is provided with a cooling element 312. The cooling element 31 is provided with a condenser 311 and a cooling element 312 is provided with a cooling element 312. The extension direction is parallel to the radial direction of the cooling disk 31, and the lower end of the rotating plate 331 is always in contact with the upper end surface of the rotating disk. Since the circular sweeping area formed when the rotating member 33 rotates completely covers the cooling disk 31, the impurities falling on the cooling disk 31 can be discharged from the cooling disk 31 under the push of the rotating member 33. It is worth noting that the rotation speed of the rotating member 33 is less than 60r / min. The main purpose of the rotation of the rotating member 33 is to prevent solid impurities in the electroplating solution from remaining on the cooling disk 31. If the rotating member 33 is not set, when the injection pipe 32 discharges the electroplating solution onto the cooling disk 31, a large amount of impurities will remain on the cooling disk 31. As time goes by, the impurities accumulated on the upper end surface of the cooling disk 31 become thicker and thicker. The cooling effect of the cooling disk 31 is reduced because the upper part is wrapped by impurities. Therefore, a rotating member 33 needs to be set on the upper part of the rotating disk to realize the cleaning of the residual impurities on the upper part of the rotating disk. At the same time, the rotation speed of the rotating member 33 should not be too fast. Otherwise, under the drive of the rotating member 33, the plating liquid falling on the rotating disk will be quickly discharged from the rotating disk under the push of the rotating member 33, the time the plating liquid stays on the cooling disk 31 will be shortened, and the cooling effect of the cooling disk 31 on the plating liquid will also be correspondingly reduced.

[0061] By setting a cooling plate 31 on the upper part of the filter unit 2, and vertically setting an injection pipe 32 on the upper part of the cooling plate 31 to guide the plating liquid to the cooling plate 31, the lower end of the injection pipe 32 points to the center of the cooling plate 31, and the plating liquid is guided by the injection pipe 32 to fall on the center of the cooling plate 31, and then flows along the radial direction of the cooling plate 31. In this process, the cooling plate 31 cools the flowing plating liquid, thereby improving the cooling effect. At the same time, a rotating part 33 is also rotatably set on the cooling plate 31, and the rotation speed of the rotating part 33 is lower than 60r / min. The rotating part 33 can guide the plating liquid and impurities remaining on the cooling plate 31 to be discharged. In summary, the present invention can complete the cooling of the plating liquid before filtration, and at the same time, it can also avoid the situation where impurities remain in the cooling unit 3 during the cooling process, avoid the impurities blocking the cooling unit 3, and at the same time, avoid the situation where impurities precipitate from the plating liquid after passing through the filter unit 2 due to the need to cool, thereby ensuring the quality of the plating liquid discharged back into the oxidation tank.

[0062] Reference Figure 2-Figure 5 and Figure 9 : The filter unit 2 includes a synchronous belt 21, a liquid storage tank 22 and a filter screen 23;

[0063] The synchronous belt 21 is arranged in the housing 1. The upper end surface of the synchronous belt 21 is called the filter end surface. The filter end surface is inclined upward. The synchronous belt 21 at the filter end surface rotates from low to high.

[0064] There are multiple liquid storage tanks 22 and they are evenly distributed on the synchronous belt 21;

[0065] The filter screen 23 is disposed in the liquid storage tank 22 .

[0066] The filter unit 2 also includes a plurality of drive wheels 24 and a first rotation driver 25. The drive wheels 24 are all arranged on one side of the inner ring of the synchronous belt 21 and cooperate with the transmission of the synchronous belt 21. The first rotation driver 25 is arranged at the end of one of the drive wheels 24. The first rotation driver 25 is used to drive the drive wheel 24. The first rotation driver 25 is preferably a servo motor. After the plating solution has cooled, it falls into the filter unit 2. The synchronous belt 21 is in a continuous rotation state, and the filter 23 rotates synchronously with the synchronous belt 21. When the filter 23 moves to the filter end face, the filter 23 moves from the lower end of the filter end face to the higher end of the filter end face. Impurities in the plating solution are intercepted by the filter 23, and the plating solution can pass through the filter 23 smoothly. In addition, the liquid reservoir 22 restricts the free flow of the plating solution on the filter end face, preventing some impurities from being washed down by the flowing plating solution, thereby improving the separation effect. When the synchronous belt 21 drives the filter 23 away from the filter end face, the end face of the filter 23 that receives impurities faces vertically downward, and impurities on the filter 23 are discharged under the action of its own weight, thereby realizing the self-cleaning function of the filter 23 and avoiding regular manual cleaning of the filter. A fan 26 is also provided on the inner ring side of the synchronous belt 21. The fan 26 is used to blow air to the filter 23 after it leaves the filter end face, so that impurities attached to the filter 23 are removed.

[0067] Reference Figure 10 and Figure 11 A guide slope 332 is obliquely provided at one end of the rotating plate 331 , and an angle between an extension direction of the guide slope 332 and an extension direction of the rotating plate 331 is an acute angle.

[0068] Since the rotation speed of the rotating member 33 is reduced and the upper end surface of the cooling plate 31 is a horizontal structure, a guide slope 332 is provided on the rotating plate 331 to facilitate smooth discharge of the plating solution and impurities on the cooling plate 31 .

[0069] Reference Figure 4 and Figure 9 The cooling unit 3 further includes a guide shell 35 , which is a funnel-shaped structure and is disposed on the periphery of the cooling plate 31 .

[0070] If the guide shell 35 is not provided, the plating liquid and impurities falling from the cooling plate 31 are relatively scattered, and it cannot be guaranteed that all the falling plating liquid and impurities can fall on the filter 23. Some impurities are likely to fall on the synchronous belt 21 on one side of the filter 23, and the upper surface of the synchronous belt 21 has no blocking effect on impurities, which may easily cause impurities to be discharged from the side with a lower position of the filter end surface, while normally separated impurities need to be discharged from the side with a higher position of the filter end surface. Therefore, if the guide shell 35 is not provided for guidance, it may easily lead to poor filtering effect.

[0071] Reference Figure 3: A partition 11 is vertically arranged at the lower part of the filter unit 2, and the partition 11 divides the bottom of the shell 1 into a liquid chamber 111 and a solid chamber 112. The lower part of the guide shell 35 is provided with an outlet for discharging the electroplating solution, and the outlet is located directly above the liquid chamber 111.

[0072] The liquid cavity 111 is located on the side where the filter end face is lower, and the solid cavity 112 is located on the side where the filter end face is higher. In the length direction of the shell 1, the horizontal length of the liquid cavity 111 is greater than the horizontal length of the solid cavity 112, so the filter end face is distributed more in the upper part of the liquid cavity 111, and the electroplating liquid and impurities stay in the upper part of the liquid cavity 111 for a longer time, ensuring that when the filter screen 23 moves to directly above the solid cavity 112, almost all of the electroplating liquid falls into the liquid cavity 111.

[0073] Reference Figure 11 : The cooling unit 3 further includes a first scraper 333, a first extension rod 334 and a spring 335;

[0074] The first scraper 333 is disposed on a side of the rotating plate 331 close to the guide housing 35 and rotates synchronously with the rotating plate 331;

[0075] The first extension rod 334 is fixedly provided at the end of the first scraper plate 333 along the extension direction of the rotating plate 331. The first extension rod 334 extends into the rotating plate 331 along the length direction of the rotating plate 331 and slidably engages with the rotating plate 331.

[0076] The spring 335 is disposed between the first scraper 333 and the rotating plate 331 along the extending direction of the first extension rod 334 . Both ends of the spring 335 are fixedly connected to the first scraper 333 and the rotating plate 331 respectively. The spring 335 is always in a compressed state.

[0077] Since the plating liquid and impurities will contact the inner wall of the guide shell 35 after being discharged from the cooling plate 31, in order to avoid scaling on the inner wall of the guide shell 35, a first scraper 333 is provided, so that the first scraper 333 rotates synchronously with the rotating plate 331, and at the same time the spring 335 is in a compressed state. The spring 335 provides pressing force to the first scraper 333, thereby ensuring that the inner wall of the guide shell 35 will not scale after long-term use.

[0078] Reference Figure 6 : A second extension rod 336 is fixedly provided on the upper part of the rotating part 33 along the axis of the cooling plate 31, and the second extension rod 336 extends into the injection pipe 32. A second scraper 337 is fixedly provided on the side wall of the second extension rod 336, and the second scraper 337 slides toward the end of the injection pipe 32 and cooperates with the inner wall of the injection pipe 32.

[0079] The second scraper 337 is provided to avoid scaling inside the injection pipe 32 .

[0080] Reference Figure 3 : A stirring blade 1111 is rotatably provided in the liquid chamber 111, and the stirring blade 1111 is driven by magnetic force.

[0081] A temperature sensor and a heating wire are also installed in the liquid chamber 111. Since the normal operating temperature of the chrome plating solution is between 50-55 degrees Celsius, if the temperature after cooling is too low, the heating wire is required to heat the liquid chamber 111 after the temperature sensor detects it. At the same time, the stirring blade 1111 rotates to ensure that the temperature of the plating solution in the liquid chamber 111 is evenly distributed. When the oxidation tank needs to be replenished with plating solution, the plating solution is pumped into the liquid chamber 111.

[0082] Reference Figure 1-Figure 4 : The housing 1 further includes a spiral blade 1121, a second rotary driver 1122 and a discharge port 1123;

[0083] The spiral blade 1121 is rotatably disposed at the bottom of the solid cavity 112 along the width direction of the housing 1;

[0084] The second rotary driver 1122 is provided on the housing 1 and is used to drive the spiral blade 1121 to rotate;

[0085] The discharge port 1123 is opened on the side wall of the housing 1 at the end of the spiral blade 1121.

[0086] The second rotary driver 1122 is preferably a servo motor, which drives the spiral blade 1121 to rotate, so that impurities falling into the solid cavity 112 are discharged through the discharge port 1123 in time, avoiding the difficulty in cleaning after long-term accumulation of impurities.

[0087] Reference Figures 1-11 The present invention also relates to a method for using a device for removing impurities from a chromium plating solution for automobile interior parts, and the specific steps are as follows:

[0088] S1. The plating solution is injected from the upper part of the injection pipe 32. The injection pipe 32 guides the plating solution to the center of the cooling plate 31. The plating solution then flows freely in the radial direction of the cooling plate 31. The condenser 311 provides real-time cooling for the cooling plate 31.

[0089] S2, the rotating member 33 rotates when the plating solution is discharged onto the cooling plate 31, and the rotation speed of the rotating member 33 is less than 60 r / min. The plating solution and impurities remaining on the cooling plate 31 are guided by the rotating member 33 and discharged to the filter unit 2;

[0090] S3. The filtering unit 2 filters the cooled electroplating solution.

[0091] The working principle is as follows: when in use, the used electroplating liquid is first injected from the upper part of the injection tube 32. Since the injection tube 32 is vertically arranged above the cooling plate 31 and the lower end of the injection tube 32 directly points to the center of the cooling plate 31, the electroplating liquid discharged through the injection tube 32 will first fall on the center of the cooling plate 31. A condenser tube 311 is arranged below the cooling plate 31. Cooling liquid circulates in the condenser tube 311. The cooling liquid achieves a cooling effect on the cooling plate 31 through the circulating flow. Since the diameter of the cooling plate 31 is larger than the diameter of the injection tube 32, the electroplating liquid gradually spreads out on the upper end surface of the cooling plate 31 after falling on the cooling plate 31 through the injection tube 32. The electroplating liquid after spreading out is subjected to a better cooling effect when flowing on the cooling plate 31, so that the electroplating liquid falling on the cooling plate 31 is quickly cooled. At the same time, the rotating part 33 arranged on the upper part of the cooling plate 31 is in a continuous rotation state. The rotating part 33 is composed of a plurality of rotating plates 331. The extension direction of 331 is parallel to the radial direction of the cooling disk 31, and the lower end of the rotating plate 331 is always in contact with the upper end surface of the rotating disk. Since the circular sweeping area formed when the rotating part 33 rotates completely covers the cooling disk 31, the impurities falling on the cooling disk 31 can be discharged from the cooling disk 31 under the push of the rotating part 33. It is worth noting that the rotation speed of the rotating part 33 is less than 60r / min. The main purpose of the rotation of the rotating part 33 is to prevent solid impurities in the electroplating solution from remaining on the cooling disk 31. If the rotating part 33 is not set, when the injection pipe 32 discharges the electroplating solution onto the cooling disk 31, a large amount of impurities will remain on the cooling disk 31. As time goes by, the impurities accumulated on the upper end surface of the cooling disk 31 become thicker and thicker. The cooling effect of the cooling disk 31 is reduced because the upper part is wrapped by impurities. Therefore, it is necessary to set a rotating part 33 on the upper part of the rotating disk to clean the residual impurities on the upper part of the rotating disk. At the same time, the rotation speed of the rotating member 33 should not be too fast. Otherwise, under the drive of the rotating member 33, the plating liquid falling on the rotating disk will be quickly discharged from the rotating disk under the push of the rotating member 33, the time the plating liquid stays on the cooling disk 31 will be shortened, and the cooling effect of the cooling disk 31 on the plating liquid will also be correspondingly reduced.

[0092] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the appended claims.

Claims

1. A device for removing impurities from chrome plating solution for automobile interior parts, comprising a housing (1), a filter unit (2) and a cooling unit (3); It is characterized in that The cooling unit (3) includes a cooling plate (31), a condensing tube (311), an injection tube (32), a rotating member (33) and an annular magnetic drive (34); The cooling plate (31) is horizontally arranged above the filter unit (2); The condenser (311) is arranged at the lower portion of the cooling plate (31) and provides cooling for the cooling plate (31); The injection pipe (32) is arranged above the cooling disk (31) along the axial direction of the cooling disk (31), and the injection pipe (32) is used to guide the chrome plating solution to the upper part of the cooling disk (31). The diameter of the cooling disk (31) is larger than the diameter of the injection pipe (32); The rotating member (33) is rotatably arranged on the cooling disk (31) along the axis of the cooling disk (31). The rotating member (33) has a radial structure and is composed of a plurality of rotating plates (331). The rotating plates (331) are evenly arranged around the axis of the cooling disk (31). The lower end surface of the rotating plate (331) is always in contact with the upper end surface of the cooling disk (31). The circular sweep area formed when the rotating member (33) rotates completely covers the upper part of the cooling disk (31). The annular magnetic driver (34) is used to drive the rotating member (33) to rotate.

2. The impurity removal device for chromium plating solution of automobile interior parts according to claim 1, characterized in that: The filter unit (2) includes a synchronous belt (21), a liquid storage tank (22) and a filter screen (23); The synchronous belt (21) is arranged in the housing (1), and the upper end surface of the synchronous belt (21) is called the filter end surface. The filter end surface is inclined upward, and the synchronous belt (21) at the filter end surface rotates from low to high; A plurality of liquid storage tanks (22) are provided and are evenly arranged on the synchronous belt (21); The filter screen (23) is arranged in the liquid storage tank (22).

3. The impurity removal device for chromium plating solution of automobile interior parts according to claim 1, characterized in that: A guide slope (332) is obliquely provided at one end of the rotating plate (331), and an angle between an extension direction of the guide slope (332) and an extension direction of the rotating plate (331) is an acute angle.

4. The impurity removal device for chromium plating solution of automobile interior parts according to claim 1, characterized in that: The cooling unit (3) further includes a guide shell (35), which is a funnel-shaped structure. The guide shell (35) is arranged on the periphery of the cooling plate (31).

5. The impurity removal device for chromium plating solution of automobile interior parts according to claim 4, characterized in that: A partition (11) is vertically provided at the bottom of the filter unit (2), and the partition (11) divides the bottom of the housing (1) into a liquid chamber (111) and a solid chamber (112). An outlet for discharging the electroplating solution is provided at the bottom of the guide shell (35), and the outlet is located directly above the liquid chamber (111).

6. The impurity removal device for chromium plating solution of automobile interior parts according to claim 4, characterized in that: The cooling unit (3) further includes a first scraper (333), a first extension rod (334) and a spring (335); The first scraper (333) is arranged on a side of the rotating plate (331) close to the guide shell (35) and rotates synchronously with the rotating plate (331); A first extension rod (334) is fixedly arranged at the end of the first scraper (333) along the extension direction of the rotating plate (331); the first extension rod (334) extends into the rotating plate (331) along the length direction of the rotating plate (331) and is slidably engaged with the rotating plate (331); The spring (335) is arranged between the first scraper (333) and the rotating plate (331) along the extension direction of the first extension rod (334), and both ends of the spring (335) are fixedly connected to the first scraper (333) and the rotating plate (331), respectively. The spring (335) is always in a compressed state.

7. The impurity removal device for chromium plating solution of automobile interior parts according to claim 1, characterized in that: A second extension rod (336) is fixedly provided on the upper part of the rotating member (33) along the axis of the cooling plate (31), and the second extension rod (336) extends into the injection pipe (32). A second scraper (337) is fixedly provided on the side wall of the second extension rod (336), and the second scraper (337) is slidably engaged with the inner wall of the injection pipe (32) toward the end of the injection pipe (32).

8. The device for removing impurities from chromium plating solution for automobile interior parts according to claim 5, characterized in that: A stirring blade (1111) is rotatably arranged in the liquid chamber (111), and the stirring blade (1111) is driven by magnetic force.

9. The device for removing impurities from chromium plating solution for automobile interior parts according to claim 5, characterized in that: The housing (1) further includes a spiral blade (1121), a second rotary driver (1122) and a discharge port (1123); The spiral blade (1121) is rotatably arranged at the bottom of the solid cavity (112) along the width direction of the housing (1); The second rotary driver (1122) is provided on the housing (1) and is used to drive the spiral blade (1121) to rotate; The discharge port (1123) is opened on the side wall of the housing (1) at the end of the spiral blade (1121).

10. A method for using a device for removing impurities from a chromium plating solution for automobile interior parts, using the device for removing impurities from a chromium plating solution for automobile interior parts according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: S1. The electroplating liquid is injected from the upper part of the injection pipe (32). The injection pipe (32) guides the electroplating liquid to fall on the center position of the cooling plate (31). Then, the electroplating liquid flows freely in the radial direction of the cooling plate (31). The condenser (311) provides real-time cooling for the cooling plate (31); S2, the rotating member (33) rotates when the plating liquid is discharged onto the cooling plate (31), the rotation speed of the rotating member (33) is less than 60 r / min, and the plating liquid and impurities remaining on the cooling plate (31) are guided by the rotating member (33) and discharged to the filter unit (2); S3, the filtering unit (2) filters the cooled electroplating solution.

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