A weighing device for copper powder feeding

Abstract

The utility model discloses a copper powder is with weighing device is added, including copper powder weighing groove, copper powder weighing groove is the groove body of top opening, copper powder weighing groove bottom end one side extends downward and integrative mould has the discharge gate, the copper powder weighing groove inboard is fixed with the baffle, the baffle extends along the height direction of copper powder weighing groove, both sides are fixed with copper powder weighing groove inner wall, and the clearance that leaves between baffle and copper powder weighing groove inboard bottom end forms the flow channel, copper powder weighing groove bottom end detachably installed is used for detecting copper powder weighing groove in copper powder weight to realize the weighing sensor of quantitative feeding, and the device can control copper powder adding quality accurately through weighing sensor to replace the copper powder adding mode of traditional quantitative time, avoids the deviation of adding amount, and the baffle in the groove body can play the function of slow flow when adding electrolytic medicine water subsequently, prevents the electrolytic medicine water flow rate too fast and washes copper powder splashes.

Description

Technical Field

[0001] This utility model relates to the field of electroplating technology, and in particular to a weighing device for feeding copper powder. Background Technology

[0002] In precision electroplating processes, continuous electroplating technology is a common method to meet the requirements of high processing accuracy. Workpieces need to undergo electroplating treatment in multi-stage plating tanks. To ensure the uniformity and density of the plating layer on the workpiece surface, the concentration of copper ions in the plating solution must be precisely controlled. However, during the electroplating process, the copper ions in the plating solution in the tank are gradually consumed as the process continues, so copper powder needs to be added to the plating solution in a timely manner. Current copper powder addition methods mostly use time-based and quantitative methods, which cannot accurately match the actual copper ion consumption state, easily leading to deviations in the quality of copper powder addition. Furthermore, the traditional feeding device's tank structure design is unreasonable, and copper powder easily adheres to the tank wall, forming residue, further causing material waste and reducing the material utilization rate of the feeding process.

[0003] Therefore, those skilled in the art have provided a weighing device for feeding copper powder to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a weighing device for adding copper powder.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A weighing device for feeding copper powder includes a copper powder weighing tank, which is a tank with an open top and a discharge port integrally formed on one side of the bottom end of the copper powder weighing tank. A partition is fixedly provided on the inner side of the copper powder weighing tank. The partition extends along the height direction of the copper powder weighing tank and is fixedly connected to the inner wall of the copper powder weighing tank on both sides. The gap between the partition and the bottom of the inner side of the copper powder weighing tank forms a flow channel. The bottom of the copper powder weighing tank is detachably equipped with a weighing sensor for detecting the weight of copper powder in the tank to achieve quantitative feeding.

[0006] Preferably, a mounting plate is embedded at the bottom of the copper powder weighing tank corresponding to the installation position of the weighing sensor, a transition bracket is fixed to the top of the weighing sensor by screws, and the two ends of the transition bracket are fixed to the mounting plate by screws, and a sensor base is fixedly installed at the bottom of the weighing sensor.

[0007] Preferably, the bottom of the inner side of the copper powder weighing tank is slightly inclined towards the discharge port, with an inclination angle of 2°-5°.

[0008] Preferably, the copper powder weighing tank is made of stainless steel or titanium alloy, and the inner wall of the copper powder weighing tank is coated with a Teflon anti-stick coating.

[0009] Preferably, a weighing device for feeding copper powder further includes: An electrolytic solution tank contains electrolytic solution inside. A copper powder weighing trough is located above the electrolytic solution tank, and the outlet of the copper powder weighing trough is connected to the inside of the electrolytic solution tank. The sensor base is detachably installed on the top of the electrolytic solution tank by bolts. The pump body has its input end sealed to the inside of the electrolytic chemical tank via a pipe, and is used to draw electrolytic chemicals from the electrolytic chemical tank. A circulation pipe, one end of which is sealed to the output end of the pump body, and the other end extends into the inside of the copper powder weighing tank; An external copper powder feeding component, which can be a screw feeder, has its discharge end set to correspond to the opening of the copper powder weighing tank, and is used to quantitatively feed copper powder into the copper powder weighing tank.

[0010] Preferably, the weighing sensor is electrically connected to the control unit of the external copper powder feeding component. The weighing sensor collects the weight signal of the copper powder in the copper powder weighing tank in real time and transmits it to the control unit. When the weight of the copper powder reaches a preset threshold, the control unit triggers the external copper powder feeding component to stop feeding, thereby realizing automated quantitative feeding control.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This device replaces the traditional timed and quantitative method of adding copper powder with a weighing sensor, which can accurately control the quality of copper powder addition and avoid deviation in the amount added. At the same time, the anti-stick coating and inclined structure design of the tank, together with the flow guiding effect of the baffle and the flushing function of the raw liquid, effectively reduce the adhesion and residue of copper powder on the tank wall, reduce material waste, improve the material utilization rate in the feeding process, and make copper powder addition more accurate and efficient, which is suitable for the stable production needs of continuous electroplating process. Attached Figure Description

[0012] To illustrate the technical solutions in the embodiments of the present invention or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the copper powder weighing tank structure proposed in this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the copper powder weighing tank proposed in this utility model; Figure 3 This is a schematic diagram of the weighing sensor installation structure proposed in this utility model; Figure 4This is a schematic diagram of the installation structure of the copper powder weighing tank proposed in this utility model.

[0014] In the diagram: 1. Copper powder weighing tank; 2. Discharge port; 3. Baffle plate; 4. Weighing sensor; 5. Transition bracket; 6. Mounting plate; 7. Sensor base; 8. Electrolytic solution tank; 9. Pump body; 10. Circulation pipe. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-4 A weighing device for feeding copper powder includes a copper powder weighing tank 1, which is a tank with an open top and a discharge port 2 integrally formed on one side of the bottom end of the copper powder weighing tank 1. A partition 3 is fixedly installed on the inner side of the copper powder weighing tank 1. The partition extends along the height direction of the copper powder weighing tank and is fixedly connected to the inner wall of the copper powder weighing tank 1 on both sides. The gap between the partition and the bottom of the inner side of the copper powder weighing tank 1 forms a flow channel. A weighing sensor 4 is detachably installed at the bottom of the copper powder weighing tank 1 to detect the weight of the copper powder in the tank and to achieve quantitative feeding.

[0017] Using the above technical solution, the copper powder weighing tank 1 with an open top provides operating space for copper powder feeding and electrolytic chemical addition, while the integrated discharge port 2 at the bottom ensures directional and leak-free material conveying. The baffle 3 set along the height direction on the inner side forms a flow channel with the bottom of the tank, facilitating liquid flow and driving the copper powder to be fed. At the same time, it can slow down the flow when adding electrolytic chemical later, preventing the electrolytic chemical flow rate from washing away the copper powder and splashing. The weighing sensor 4 at the bottom of the copper powder weighing tank 1 accurately detects the weight of the copper powder under the premise of material stability, realizing quantitative feeding.

[0018] A mounting plate 6 is embedded at the bottom of the copper powder weighing tank 1, corresponding to the installation position of the weighing sensor 4. A transition bracket 5 is fixed to the top of the weighing sensor 4 by screws, and both ends of the transition bracket 5 are fixed to the mounting plate 6 by screws. A sensor base 7 is fixedly installed at the bottom of the weighing sensor 4.

[0019] Using the above technical solution, the mounting plate 6 at the bottom of the copper powder weighing tank 1 provides a stable mounting foundation for the sensor; the transition bracket 5 connects the weighing sensor 4 and the mounting plate 6 with screws and threaded rods respectively, achieving a firm fixation; the sensor base 7 further enhances the support stability. Overall, this reduces detection errors caused by unstable installation, and the detachable connection facilitates later maintenance and replacement, providing structural assurance for the accuracy of quantitative feeding.

[0020] The bottom of the inner side of the copper powder weighing tank 1 is slightly inclined towards the discharge port 2, with an inclination angle of 2°-5°.

[0021] Using the above technical solution, the bottom of the inner side of the copper powder weighing tank 1 is inclined at 2°-5° towards the discharge port 2, which takes into account both smooth flow and weighing stability. On the one hand, the inclined structure, together with the flow channel formed by the partition 3, can guide the copper powder to flow smoothly by gravity. When liquid is added later, it can also drive the copper powder to flow to the discharge port 2 in a directional manner, avoiding material stagnation. On the other hand, the 2°-5° angle is moderate and can prevent the copper powder from flowing out prematurely during the weighing process, ensuring that the weighing sensor 4 accurately detects the weight of the copper powder and ensuring stable quantitative feeding.

[0022] The copper powder weighing tank is made of 304 stainless steel or titanium alloy, and the inner wall of the copper powder weighing tank 1 is coated with a Teflon non-stick coating.

[0023] By adopting the above technical solutions and selecting 304 stainless steel or titanium alloy, the corrosion environment of electroplating can be withstood, extending the service life of the tank. The Teflon anti-stick coating on the inner wall can reduce copper powder adhesion residue, which not only avoids affecting the weighing accuracy, but also helps the copper powder to be fed smoothly, providing stable support for quantitative feeding.

[0024] A weighing device for feeding copper powder further includes: An electrolytic solution tank 8 contains electrolytic solution inside. A copper powder weighing tank 1 is located above the electrolytic solution tank 8, and the outlet 2 of the copper powder weighing tank 1 is connected to the inside of the electrolytic solution tank 8. A sensor base 7 is detachably installed on the top of the electrolytic solution tank 8 by bolts. Pump body 9, the input end of pump body 9 is connected to the inside of electrolytic chemical tank 8 in a sealed manner through a pipe, and is used to draw electrolytic chemical from the electrolytic chemical tank 8; The circulation pipe 10 has one end sealed to the output end of the pump body 9, and the other end extends into the inside of the copper powder weighing tank 1. The external copper powder feeding component can be a screw feeder, with its discharge end corresponding to the opening of the copper powder weighing tank 1, for quantitatively feeding copper powder into the copper powder weighing tank 1.

[0025] Using the above technical solution, the electrolytic solution tank 8 is not only a storage container for the electrolytic solution, but also the source of the raw solution flushing. The copper powder weighing tank 1 is located above it, and the discharge port 2 is connected to the inside of the tank, providing a path for the raw solution to flush the copper powder. The sensor base 7 is fixed to the copper powder weighing tank 1 with bolts to ensure the stability of the tank position and prevent displacement during flushing. The pump body 9 draws the raw solution from the electrolytic solution tank 8 through a pipeline, and then transports the raw solution into the tank through the circulation pipe 10 extending to the inside of the copper powder weighing tank 1. The raw solution is used to directly flush the copper powder in the tank, pushing the copper powder... The copper powder flows smoothly into the electrolytic solution tank 8 through the outlet 2, achieving precise fusion of a fixed amount of copper powder and electrolytic solution, supplementing the electroplating process with copper elements. At the same time, the entire process is rinsed with the original electrolytic solution, without the need to add other liquids, fundamentally avoiding contamination of the electrolytic solution by external liquids and ensuring the purity and quality of the electrolytic solution. The screw feeder at the outlet end, corresponding to the copper powder weighing tank 1, provides a fixed amount of copper powder to the tank, forming a complete "powder feeding-rinsing-tank entry" process in conjunction with the original solution rinsing, greatly improving the practicality of the device and the stability of the electrolytic solution.

[0026] The weighing sensor 4 is electrically connected to the control unit of the external copper powder feeding component. The weighing sensor 4 collects the weight signal of the copper powder in the copper powder weighing tank 1 in real time and transmits it to the control unit. When the weight of the copper powder reaches the preset threshold, the control unit triggers the external copper powder feeding component to stop feeding, thereby realizing automated quantitative feeding control.

[0027] By adopting the above technical solution, the weighing sensor 4 is electrically connected to the control unit of the external copper powder feeding component to achieve precise quantitative feeding and adapt to the requirements of raw liquid rinsing: the weighing sensor 4 collects the weight signal of copper powder in the copper powder weighing tank 1 in real time and transmits it to the control unit. When the weight reaches the preset threshold, the control unit immediately triggers the feeding component to stop feeding, ensuring that the amount of copper powder is accurate and consistent each time, so that when the raw liquid is rinsed later, the copper powder can be completely integrated into the electrolytic solution in the electrolytic solution tank 8, avoiding the effect of too much / too little copper powder on the concentration of the electrolytic solution.

[0028] It should be noted that the automated control logic in this solution adopts existing automated control programs, which are known technologies in this field. It is only adapted to the weighing-feeding mechanism of this device. The specific control system details will not be elaborated in detail. This design not only eliminates manual intervention and improves efficiency, but also avoids the deviation of manual powder feeding, further ensuring the quality of electrolytic chemicals and supporting the stability of subsequent electroplating processes.

[0029] Working principle: The external copper powder feeding component feeds copper powder into the copper powder weighing tank 1. The weighing sensor 4 collects the weight of the copper powder in the tank in real time and transmits it to the control unit. When the weight reaches the preset threshold, the control unit triggers the feeding component to stop feeding. Then, the pump body 9 draws the electrolyte solution from the electrolytic solution tank 8 and transports it to the copper powder weighing tank 1 through the circulation pipe 10. The solution smoothly washes the copper powder in the tank under the slow flow action of the baffle 3. The copper powder flows into the electrolytic solution tank 8 from the outlet 2 along the inclined bottom of the tank and the guide channel with the solution, completing the quantitative replenishment of copper powder and the recycling of the electrolyte solution, ensuring the stability of the electroplating process.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A weighing device for feeding copper powder, comprising a copper powder weighing tank (1), characterized in that, The copper powder weighing tank (1) is a tank with an open top, and the bottom side of the copper powder weighing tank (1) extends downward and is integrally formed with a discharge port (2). A partition (3) is fixedly provided on the inner side of the copper powder weighing tank (1). The partition extends along the height direction of the copper powder weighing tank and is fixedly connected to the inner wall of the copper powder weighing tank (1) on both sides. The gap between the partition and the bottom of the inner side of the copper powder weighing tank (1) forms a flow channel. The bottom of the copper powder weighing tank (1) is detachably equipped with a weighing sensor (4) for detecting the weight of copper powder in the copper powder weighing tank (1) to achieve quantitative feeding.

2. The weighing device for copper powder feeding according to claim 1, characterized in that, The bottom of the copper powder weighing tank (1) is fitted with an installation plate (6) corresponding to the installation position of the weighing sensor (4). The top of the weighing sensor (4) is fixed with a transition bracket (5) by screws, and the two ends of the transition bracket (5) are fixed with the installation plate (6) by screws. The bottom of the weighing sensor (4) is fixedly installed with a sensor base (7).

3. The weighing device for copper powder feeding according to claim 1, characterized in that, The inner bottom of the copper powder weighing tank (1) is slightly inclined towards the discharge port (2) with an inclination angle of 2°-5°.

4. The weighing device for copper powder feeding according to claim 1, characterized in that, The copper powder weighing tank is made of 304 stainless steel or titanium alloy, and the inner wall of the copper powder weighing tank (1) is coated with a Teflon anti-stick coating.

5. A weighing device for feeding copper powder according to claim 2, characterized in that, Also includes: An electrolytic chemical tank (8) contains electrolytic chemical solution on its inner side. The copper powder weighing tank (1) is located above the electrolytic chemical tank (8), and the outlet (2) of the copper powder weighing tank (1) is connected to the inside of the electrolytic chemical tank (8). The sensor base (7) is detachably installed on the top of the electrolytic chemical tank (8) by bolts. Pump body (9), the input end of the pump body (9) is connected to the inside of the electrolytic chemical tank (8) through a pipe and is sealed to draw electrolytic chemical from the electrolytic chemical tank (8); The circulation pipe (10) has one end sealed to the output end of the pump body (9) and the other end extends to the inside of the copper powder weighing tank (1); An external copper powder feeding component, which can be a screw feeder, has its discharge end set to the opening of the copper powder weighing tank (1) for quantitatively feeding copper powder into the copper powder weighing tank (1).

6. The weighing device for copper powder feeding according to claim 5, characterized in that, The weighing sensor (4) is electrically connected to the control unit of the external copper powder feeding component. The weighing sensor (4) collects the copper powder weight signal in the copper powder weighing tank (1) in real time and transmits it to the control unit. When the copper powder weight reaches the preset threshold, the control unit triggers the external copper powder feeding component to stop feeding, thereby realizing automated quantitative feeding control.

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