A sampling device for electroplating bath detection

Abstract

This utility model discloses a sampling device for electroplating solution testing, including a base plate, a storage box, and a central cylinder. The storage box is fixedly supported on the top of the base plate by evenly arranged support legs, and a bidirectional air pump is installed on one side of the storage box. The bidirectional air pump is fixedly connected to the top of the central cylinder, located in the middle of a crossbeam, via a spring tube. A piston is installed inside the central cylinder, and sampling tubes one, two, three, and four are fixed to the outside of the central cylinder by evenly arranged annular support rods. This utility model, by setting sampling tubes one, two, three, and four with decreasing lengths on the outside of the central cylinder, can achieve precise stratified sampling at different depths. It effectively solves the problem of difficulty in accurately obtaining electroplating solution samples at different depths in the prior art, improving the representativeness of the samples and the accuracy of the test results.

Description

Technical Field

[0001] This utility model relates to the field of electroplating solution detection technology, specifically to a sampling device for electroplating solution detection. Background Technology

[0002] In the electroplating industry, the composition, concentration, temperature, and other parameters of the electroplating solution directly affect the quality of electroplated products. Therefore, it is necessary to regularly sample and test the electroplating solution to ensure the stability of the electroplating process and the product qualification rate. The accuracy, representativeness, and convenience of the sampling process are key prerequisites for ensuring the reliability of subsequent test results.

[0003] Currently, electroplating solution sampling is mostly done manually, with operators typically using a single sampling tool (such as a beaker, pipette, or sampling tube) to take samples deep into the electroplating tank. This traditional sampling method has several shortcomings: Manual sampling is difficult to control precisely at the sampling depth. Electroplating solutions may stratify within the plating tank due to uneven stirring or temperature differences, meaning a single depth sample cannot fully reflect the overall state of the solution. Obtaining samples at different depths requires multiple operations, which is inefficient and prone to cross-contamination. Manual sampling relies heavily on operator experience and judgment, easily resulting in over- or under-sampling, affecting the standardization of subsequent testing procedures. The temperature of the electroplating solution significantly impacts its component stability, but current sampling tools lack temperature monitoring and insulation capabilities. Temperature changes between sampling and testing can alter the composition, affecting the accuracy of results. Manual sampling is highly susceptible to human error, has poor repeatability, and poses safety risks in large plating tanks or high-risk environments. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for detecting electroplating solutions, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sampling device for electroplating solution detection, comprising a base plate, a storage box, and a central cylinder. A transmission box is installed at one end of the top of the base plate, a servo motor is installed on one side of the transmission box, and a column is provided on the top of the transmission box. A lead screw is installed inside the movable groove on one side of the column, and a crossbeam is installed on one side of the lead screw through a threaded block. Self-locking casters are installed at the four corners of the bottom of the base plate. The storage box is fixedly supported on the top of the base plate by evenly arranged support legs, and a bidirectional air pump is installed on one side of the storage box. The bidirectional air pump is fixedly connected to the top of the central cylinder located in the middle of the crossbeam through a spring tube. A piston is installed inside the central cylinder, and sampling tubes one, two, three and four are fixed to the outside of the central cylinder by a ring of evenly arranged support rods. Each of the sampling tubes is connected to the central cylinder by a branch pipe, and a solenoid valve is installed on each branch pipe.

[0006] Preferably, the output end of the servo motor extends into the interior of the transmission box and is equipped with a first conical tooth, and one end of the lead screw extends into the interior of the transmission box and is equipped with a second conical tooth, the first conical tooth and the second conical tooth meshing with each other.

[0007] Preferably, the inner walls of sampling tube 1, sampling tube 2, sampling tube 3 and sampling tube 4 are all provided with a heat-insulating inner layer, and a temperature sensor is installed on one side of the input end of sampling tube 1, sampling tube 2, sampling tube 3 and sampling tube 4.

[0008] Preferably, each of the sampling tubes 1, 2, 3 and 4 is equipped with an infrared liquid level sensor at its top. The detection end of each infrared liquid level sensor extends to the upper part of the inner side of each sampling tube, and the lengths of the sampling tubes 1, 2, 3 and 4 decrease in that order.

[0009] Preferably, the storage box has storage drawers evenly arranged inside, and a temporary storage slot is provided on the top of the storage box. A test tube rack is provided inside the temporary storage slot, and storage test tubes are placed on the inside of the test tube rack. A push handle is also provided on the top of one side of the storage box, and a controller is installed on the inside of the push handle.

[0010] Preferably, a battery box is installed on the top of the bottom plate below the storage box, and a storage battery is installed inside the battery box.

[0011] This invention provides a sampling device for detecting electroplating solutions, which has significant advantages over existing technologies, as detailed below: 1. This device, by setting sampling tubes 1, 2, 3, and 4 of decreasing length on the outer side of the central cylinder, enables precise stratified sampling at different depths. This effectively solves the problem of accurately obtaining electroplating solution samples at different depths in existing technologies, improving the representativeness of the samples and the accuracy of the test results.

[0012] 2. The device is equipped with a servo motor, transmission box, and lead screw, among other transmission mechanisms. The servo motor drives the lead screw to move the crossbeam, thereby precisely controlling the position of the sampling tube. This automated design reduces errors from manual operation and improves the stability and repeatability of the sampling process.

[0013] 3. The sampling tube has an inner insulating layer, and each sampling tube is equipped with a temperature sensor at its input end. This allows for real-time monitoring of the electroplating solution temperature, ensuring sample temperature stability during sampling and preventing changes in sample properties due to temperature variations, thus further improving the reliability of the test results. An infrared liquid level sensor is installed at the top of the sampling tube, with its detection end extending to the upper part of the inner side of the tube. This allows for precise detection of the liquid level, avoiding sampling errors caused by excessively high or low liquid levels and ensuring the accuracy of each sample. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the central cylindrical sampling structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the transmission box of this utility model; Figure 4 This is a bottom view of the sampling part of this utility model. In the diagram: 1. Two-way air pump; 2. Storage box; 3. Storage test tubes; 4. Temporary storage tank; 5. Test tube rack; 6. Controller; 7. Push handle; 8. Storage drawer; 9. Battery box; 10. Battery; 11. Base plate; 12. Self-locking casters; 13. Servo motor; 14. Support leg; 15. Transmission box; 16. Sampling tube one; 17. Sampling tube two; 18. Sampling tube three; 19. Central cylinder; 20. Crossbeam; 21. Bourdon tube; 22. Threaded block; 23. Column; 24. Lead screw; 25. Movable groove; 26. Conical tooth one; 27. Conical tooth two; 28. Temperature sensor; 29. ​​Insulation inner layer; 30. Support rod; 31. Infrared liquid level sensor; 32. Piston; 33. Branch pipe; 34. Solenoid valve; 35. Sampling tube four. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] Please see Figure 1-4An embodiment of this utility model provides a sampling device for detecting electroplating solution, comprising a base plate 11, a storage box 2, and a central cylinder 19. A transmission box 15 is installed at one end of the top of the base plate 11. A servo motor 13 is installed on one side of the transmission box 15, and a column 23 is provided on the top of the transmission box 15. A lead screw 24 is installed inside the movable groove 25 on one side of the column 23. The output end of the servo motor 13 extends into the interior of the transmission box 15 and is equipped with a conical tooth 26. One end of the lead screw 24 extends into the interior of the transmission box 15 and is equipped with a conical tooth 27. The conical tooth 26 and the conical tooth 27 mesh with each other.

[0017] Base plate 11: The base plate 11 is the basic support component of the entire device, and the transmission box 15 is installed at one of its top ends. The base plate 11 is made of high-strength material to ensure the stability and durability of the device.

[0018] Transmission box 15: The transmission box 15 is fixed to one end of the top of the base plate 11 and is mainly used for transmitting and converting power. A servo motor 13 is installed on one side of the transmission box 15, and a column 23 is set on the top.

[0019] Servo motor 13: Servo motor 13 is mounted on one side of the transmission housing 15, with its output end extending into the interior of the transmission housing 15. Servo motor 13 achieves precise control of the sampling device by controlling its rotational speed. Column 23: Column 23 is vertically mounted on the top of transmission box 15, and has a movable groove 25 on one side. The main function of column 23 is to support and guide, ensuring the stable operation of the sampling device.

[0020] Movable slot 25: The movable slot 25 is located on one side of the column 23 and has a lead screw 24 installed inside. The design of the movable slot 25 allows the lead screw 24 to rotate freely within it while maintaining good guidance.

[0021] Lead screw 24: The lead screw 24 is installed inside the movable groove 25, with one end extending into the interior of the transmission box 15 and connected to the conical gear 27. The lead screw 24 converts rotational motion into linear motion, driving the sampling device to move up and down.

[0022] Conical tooth 26: Conical tooth 26 is installed at the output end of servo motor 13. It is conical in shape and meshes with conical tooth 27.

[0023] Conical tooth 27: Conical tooth 27 is installed at one end of the lead screw 24. Its shape matches that of conical tooth 26. The two transmit power through meshing.

[0024] A crossbeam 20 is installed on one side of the lead screw 24 via a threaded block 22. Self-locking casters 12 are installed at the four corners of the bottom of the base plate 11. The storage box 2 is fixedly supported on the top of the base plate 11 by evenly arranged support legs 14. A two-way air pump 1 is installed on one side of the storage box 2. The two-way air pump 1 is fixedly connected to the top of the central cylinder 19 located in the middle of the crossbeam 20 via a spring tube 21.

[0025] A piston 32 is installed inside the central cylinder 19, and sampling tubes 16, 17, 18 and 35 are fixed to the outside of the central cylinder 19 by a ring of evenly arranged support rods 30. A branch pipe 33 is provided between the sampling tubes 16, 17, 18 and 35 and the central cylinder 19, and a solenoid valve 34 is installed on each branch pipe 33.

[0026] The base plate 11 has a rectangular structure, and a self-locking caster wheel 12 is installed at each of the four corners of its bottom. The self-locking caster wheel 12 enables the entire device to move smoothly on the ground and can be locked when a fixed position is required to prevent slippage.

[0027] The storage box 2 is fixedly supported above the base plate 11 by four evenly spaced support legs 14. The height of the support legs 14 is adjustable to ensure that the storage box 2 is in a horizontal position. The storage box 2 is used to store various experimental equipment or samples, and its interior can be divided into multiple small storage spaces as needed.

[0028] A two-way air pump 1 is installed on one side of the storage box 2. The two-way air pump 1 is fixedly connected to the top of the central cylinder 19 located in the middle of the crossbeam 20 via a spring tube 21. The function of the two-way air pump 1 is to drive the piston 32 inside the central cylinder 19 by compressing or releasing air.

[0029] The crossbeam 20 is mounted on one side of the lead screw 24 via a threaded block 22, and the other end of the lead screw 24 is fixed to the base plate 11. The function of the crossbeam 20 is to provide support and fix the position of the central cylinder 19.

[0030] A piston 32 is installed inside the central cylinder 19. The piston 32 moves up and down inside the central cylinder 19, driven by the air pressure provided by the bidirectional air pump 1. Sampling tubes 1-16, 17-18, 18-19, and 35 are fixed to the outside of the central cylinder 19 by uniformly arranged annular support rods 30. Each sampling tube is used to collect samples from different locations.

[0031] Each of the sampling tubes 16, 17, 18, and 35 is connected to the central cylinder 19 via a branch pipe 33, and each branch pipe 33 is equipped with a solenoid valve 34. The solenoid valve 34 is used to control the airflow channel between the sampling tube and the central cylinder 19, thereby achieving precise control of the sample collection process.

[0032] The inner walls of sampling tube 16, sampling tube 27, sampling tube 38 and sampling tube 435 are all provided with a heat-insulating inner layer 29, and a temperature sensor 28 is installed on one side of the input end of sampling tube 16, sampling tube 27, sampling tube 38 and sampling tube 435.

[0033] Infrared liquid level sensors 31 are installed at the top of sampling tube 16, sampling tube 27, sampling tube 38 and sampling tube 45. The detection end of each infrared liquid level sensor 31 extends to the upper part of the inner side of each sampling tube. The lengths of sampling tube 16, sampling tube 27, sampling tube 38 and sampling tube 45 decrease in that order.

[0034] This utility model relates to a multi-channel sampling device, mainly including sampling tube one 16, sampling tube two 17, sampling tube three 18, and sampling tube four 35. The inner walls of these sampling tubes are all provided with a heat-insulating inner layer 29 to maintain the temperature stability of the sample during the sampling process and prevent changes in sample properties caused by temperature changes.

[0035] Specifically, the inner insulation layer 29 of sampling tube 16, sampling tube 27, sampling tube 38, and sampling tube 45 is made of a high thermal conductivity insulation material, such as polyurethane foam or other high-efficiency insulation materials. The thickness of the insulation layer 29 is designed according to the actual application requirements to ensure that the sample temperature remains stable even in extreme temperature environments.

[0036] Temperature sensors 28 are installed on the input side of sampling tubes 16, 17, 18, and 35. The temperature sensors 28 employ high-precision temperature sensing elements, such as Pt100 platinum resistance temperature sensors or other types of temperature sensing elements, capable of monitoring and providing real-time feedback on sample temperature information. The temperature sensors 28 are connected to the control system via wires. Based on the feedback signals from the temperature sensors, the control system adjusts the temperature of the sampling tubes in real time to ensure the stability of the sample temperature during sampling.

[0037] In addition, infrared liquid level sensors 31 are installed at the top of sampling tubes 16, 17, 18, and 35. The detection end of each infrared liquid level sensor 31 extends to the upper part of the inner side of each sampling tube, and is used to monitor the liquid level of the sample in the sampling tube in real time. The infrared liquid level sensor 31 adopts the principle of infrared emission and reception, and determines the liquid level by detecting the reflection of the infrared beam, which has the characteristics of high accuracy and high reliability.

[0038] The lengths of sampling tubes 16, 17, 18, and 35 decrease progressively. This design is intended to accommodate different sampling volumes while facilitating a compact layout of the device. The decreasing length of the sampling tubes allows for multi-channel sampling within a limited space, improving space utilization and ease of operation.

[0039] In actual operation, the sample enters the device through sampling tube 16, sampling tube 27, sampling tube 38, and sampling tube 45 respectively. Temperature sensor 28 monitors the sample temperature in real time and transmits the temperature data to the control system. The control system regulates the temperature of the inner insulation layer 29 of the sampling tube according to the preset temperature range to ensure the temperature stability of the sample during sampling.

[0040] Infrared liquid level sensor 31 monitors the liquid level of the sample in the sampling tube in real time and transmits the liquid level data to the control system. Based on the liquid level data, the control system determines whether the sample volume meets the preset requirements. When the liquid level reaches the preset value, the control system automatically stops sampling to ensure the accuracy and consistency of each sampling.

[0041] The storage box 2 has storage drawers 8 evenly arranged inside, and a temporary storage slot 4 is provided on the top of the storage box 2. A test tube rack 5 is provided inside the temporary storage slot 4, and storage test tubes 3 are placed inside the test tube rack 5. A push handle 7 is also provided on the top of one side of the storage box 2, and a controller 6 is installed inside the push handle 7.

[0042] A battery box 9 is installed on the top of the bottom plate 11 below the storage box 2, and a storage battery 10 is installed inside the battery box 9.

[0043] The storage box 2 of this utility model is generally rectangular in shape, and has multiple storage drawers 8 evenly arranged inside. A temporary storage slot 4 is provided on the top of the storage box 2, and a test tube rack 5 is placed inside the temporary storage slot 4. The inner side of the test tube rack 5 is used to store test tubes 3. A push handle 7 is also provided on one side of the top of the storage box 2, and a controller 6 is installed inside the push handle 7 for controlling the relevant functions of the storage box.

[0044] Storage drawers 8 are evenly distributed inside the storage box 2, and each drawer 8 can be independently pulled out and pushed in. The size and number of storage drawers 8 can be adjusted according to actual needs to ensure full utilization of storage space.

[0045] The temporary storage slot 4 is located on top of the storage box 2, and its internal space is sufficient to hold the test tube rack 5 and the storage test tubes 3. The opening edge of the temporary storage slot 4 is equipped with anti-slip pads to prevent the test tube rack 5 and the storage test tubes 3 from slipping during movement. The test tube rack 5 is made of corrosion-resistant material, and its inner side has multiple test tube slots, each slot can securely hold one storage test tube 3.

[0046] A push handle 7 is located on the top side of the storage box 2, making it easy for the user to grip and move the storage box 2. A controller 6 is installed inside the push handle 7. The user can control the sampling device through the controller 6.

[0047] A battery compartment 9 is mounted on top of the base plate 11 below the storage box 2, and a storage battery 10 is installed inside the battery compartment 9. The storage battery 10 provides power for the lighting and temperature control of the storage box 2. The battery compartment 9 is equipped with a charging interface, allowing the user to charge the storage battery 10 via an external power source.

[0048] When this application embodiment is used, Move the device to the electroplating tank using the self-locking casters 12 at the bottom of the base plate 11, lock the casters 12 in place, and have the operator hold the push handle 7 on one side of the storage box 2 to help adjust the device's position. At the same time, ensure that the battery 10 in the battery box 9 has sufficient power to supply power to the electrical components.

[0049] Next, the device is activated by the controller 6 inside the pusher 7. According to the sampling requirements, the controller 6 is operated to make the servo motor 13 run. The output end of the servo motor 13 drives the conical tooth 26 to rotate. Since the conical tooth 26 and the conical tooth 27 mesh with each other, the lead screw 24 is driven to rotate in the movable groove 25 of the column 23. The lead screw 24 drives the crossbeam 20 to move up and down through the threaded block 22, thereby adjusting the height of the central cylinder 19 and the outer sampling tubes 16, 17, 18, and 35 until the input end of each sampling tube is aligned with the different depths of the electroplating solution (because the length of the sampling tube decreases, it can correspond to different depths at the same time).

[0050] Subsequently, the bidirectional air pump 1 is turned on by the controller 6, and the solenoid valve 34 on the branch pipe 33 of the corresponding sampling tube is opened. The bidirectional air pump 1 draws air into the central cylinder 19 through the spring tube 21, causing the piston 32 inside the central cylinder 19 to move upward. At this time, the electroplating solution enters the corresponding sampling tube (such as sampling tube 16, sampling tube 27, etc.) under the action of air pressure. During the sampling process, the temperature sensor 28 on one side of the sampling tube input end monitors the temperature of the electroplating solution in real time, and the data is fed back to the controller 6. At the same time, the heat insulation inner layer 29 on the inner wall of the sampling tube maintains the sample temperature stable. The infrared liquid level sensor 31 at the top of the sampling tube monitors the liquid level in the tube. When the liquid level reaches the preset value, the infrared liquid level sensor 31 transmits the signal to the controller 6. The controller 6 closes the corresponding solenoid valve 34 and the bidirectional air pump 1, completing the sampling of the sampling tube.

[0051] If sampling at multiple depths is required, repeat the switching operation of the solenoid valve 34 described above, controlling the sampling tubes to take samples by opening and closing different solenoid valves 34. After sampling is completed, start the servo motor 13 again, causing the crossbeam 20 to lift each sampling tube to a suitable height. The operator takes out the storage test tube 3 from the test tube rack 5 in the temporary storage slot 4 at the top of the storage box 2, transfers the sample in the sampling tube to the storage test tube 3, and then puts the storage test tube 3 back into the test tube rack 5 for temporary storage, or puts it into the storage drawer 8 inside the storage box 2 for storage. Finally, turn off the power of the device to complete the entire sampling process.

[0052] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0055] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sampling device for detecting electroplating solution, comprising a base plate (11), a storage box (2), and a central cylinder (19), characterized in that: A transmission box (15) is installed at one end of the top of the base plate (11). A servo motor (13) is installed on one side of the transmission box (15). A column (23) is set on the top of the transmission box (15). A lead screw (24) is installed inside the movable groove (25) on one side of the column (23). A crossbeam (20) is installed on one side of the lead screw (24) through a threaded block (22). Self-locking casters (12) are installed at the four corners of the bottom of the base plate (11). A storage box (2) is fixedly supported on the top of the base plate (11) by evenly arranged support legs (14). A two-way air pump (1) is installed on one side of the storage box (2). The two-way air pump (1) is fixedly connected to the top of the central cylinder (19) set in the middle of the crossbeam (20) through a spring tube (21). The central cylinder (19) is equipped with a piston (32), and sampling tubes 1 (16), 2 (17), 3 (18) and 4 (35) are fixed on the outside of the central cylinder (19) by a ring of evenly arranged support rods (30). A branch pipe (33) is provided between the sampling tubes 1 (16), 2 (17), 3 (18) and 4 (35) and the central cylinder (19), and a solenoid valve (34) is installed on each branch pipe (33).

2. The sampling device for detecting electroplating solution according to claim 1, characterized in that: The output end of the servo motor (13) extends into the interior of the transmission box (15) and is equipped with a conical tooth (26), and one end of the lead screw (24) extends into the interior of the transmission box (15) and is equipped with a conical tooth (27). The conical tooth (26) and the conical tooth (27) mesh with each other.

3. The sampling device for detecting electroplating solution according to claim 1, characterized in that: The inner walls of sampling tube 1 (16), sampling tube 2 (17), sampling tube 3 (18) and sampling tube 4 (35) are all provided with a heat-insulating inner layer (29), and a temperature sensor (28) is installed on one side of the input end of sampling tube 1 (16), sampling tube 2 (17), sampling tube 3 (18) and sampling tube 4 (35).

4. The sampling device for detecting electroplating solution according to claim 1, characterized in that: The top of each of the sampling tubes 1 (16), 2 (17), 3 (18) and 4 (35) is equipped with an infrared liquid level sensor (31). The detection end of each infrared liquid level sensor (31) extends to the upper part of the inner side of each sampling tube. The lengths of the sampling tubes 1 (16), 2 (17), 3 (18) and 4 (35) decrease in that order.

5. The sampling device for detecting electroplating solution according to claim 1, characterized in that: The storage box (2) is evenly provided with storage drawers (8) inside, and a temporary storage slot (4) is provided on the top of the storage box (2). A test tube rack (5) is provided inside the temporary storage slot (4). Storage test tubes (3) are placed inside the test tube rack (5). A push handle (7) is also provided on the top of one side of the storage box (2). A controller (6) is installed inside the push handle (7).

6. The sampling device for detecting electroplating solution according to claim 1, characterized in that: A battery box (9) is installed on the top of the bottom plate (11) below the storage box (2), and a storage battery (10) is installed inside the battery box (9).

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