Jewelry uniform coating processing equipment and coating method thereof
By employing a rotary cage to separate the electroplating chamber, a hydraulic push, and a central pumping system in the barrel plating machine, the problem that existing barrel plating machines cannot process multiple workpieces simultaneously has been solved, achieving efficient multi-workpiece electroplating production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QUANZHOU FUGUANG IND & TRADE CO LTD
- Filing Date
- 2026-04-20
- Publication Date
- 2026-05-29
Smart Images
Figure CN122105590A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of coating technology, and in particular to a uniform coating processing equipment and method for jewelry. Background Technology
[0002] Barrel plating equipment is a specialized piece of equipment used in the surface treatment industry for batch plating of small-sized parts. Its core component is a hexagonal or octagonal drum with numerous small holes, made of corrosion-resistant material (such as polypropylene), which is immersed in the plating solution in a plating tank. During operation, the drum rotates slowly around a horizontal axis, causing the internal parts to tumble and come into contact with each other. Current is conducted to the surface of the parts through conductive rods and flybars installed inside the drum wall, achieving uniform metal deposition.
[0003] This equipment boasts several key features: it can load hundreds of kilograms of small parts (such as screws, washers, and electronic components) at a time, resulting in extremely high production efficiency; minimal overlap between parts ensures uniform plating thickness; and its enclosed structure prevents parts from falling or deforming. Common types include horizontal barrel plating, inclined barrel plating, and vibratory barrel plating, each suitable for parts of different sizes and shapes. It's important to note that barrel plating equipment is not suitable for large or easily deformable parts and requires precise control over the drum opening, rotation speed, and current density to ensure plating quality.
[0004] Existing barrel plating machines cannot process multiple types of workpieces simultaneously. Summary of the Invention
[0005] To overcome the technical defects of the existing technology, the present invention provides a uniform coating processing equipment and coating method for jewelry, which can simultaneously process various workpieces and improve production efficiency.
[0006] The technical solution adopted in this invention is: A uniform coating processing device for jewelry includes a rotary cage, a central pumping system, a hydraulic pushing system, a coating tank, and a filtration and material handling system. The rotary cage is rotatably installed inside the coating tank and is divided into several electroplating chambers. A discharge pipe is located in the center of the rotary cage and is hollow. Each side of the discharge pipe near one of the electroplating chambers has an inwardly opening discharge door. The hydraulic pushing system includes a pushing reference shaft, a pushing device, and a resistance device. The pushing device and the resistance device are respectively installed at both ends of the pushing reference shaft. The pushing reference shaft is rotatably installed inside the discharge pipe. The resistance device is outside the discharge pipe, and the pushing device rotates inside the discharge pipe. The pushing device has a support plate adapted to each discharge door. Several mutually separated discharge chambers are formed between adjacent support plates and the discharge pipe. The electroplating chamber is divided into equal-divided discharge pipes and a rotating cage. The number of discharge chambers and electroplating chambers is the same. A central pumping system is installed on the coating tank. The central pumping system has a suction port on the coating tank that matches the top discharge chamber. Each discharge chamber connects to the suction port in sequence as it rotates with the discharge pipe. When the rotating cage rotates, the hydraulic push system supports the corresponding discharge gate with a support plate. When the discharge pipe stops rotating, the support plate disengages from each discharge gate. When the discharge pipe stops rotating and the top discharge chamber connects to the suction port, the central pumping system draws water from the discharge chamber through the suction port, and the corresponding discharge gate opens, connecting the corresponding electroplating chamber with the corresponding discharge chamber. A filtration and material handling system is connected to both the central pumping system and the coating tank. The bottom of the filtration and material handling system is connected to the coating tank. The filtration and material handling system separates the workpiece from the plating solution.
[0007] Preferably, the rotary cage has a hexagonal prism shape, and the outer periphery of the rotary cage is provided with a plurality of water-permeable holes.
[0008] Preferably, the filtration and material handling system includes a material handling vehicle, a filter screen is provided on the top of the material handling vehicle, the bottom of the material handling vehicle is connected to a coating tank, the end of the central water pumping system is connected to the upper part of the filter screen, and the central water pumping system uses a cyclone pump as a power source.
[0009] Preferably, the discharge gate is equipped with a discharge torsion spring at its rotation position, and the discharge gate is closed when the discharge torsion spring is in a free state.
[0010] Preferably, the hydraulic jacking system further includes a jacking torsion spring, the two ends of which are respectively installed on the coating tank and the jacking reference shaft. When the jacking torsion spring is in a free state, the support plate disengages from the corresponding discharge gate.
[0011] Preferably, the resistance device includes a plurality of resistance plates, each of which is installed at the end of the jacking reference shaft.
[0012] Preferably, the cross-section of the extraction port is fan-shaped.
[0013] The coating method using jewelry uniform coating processing equipment includes the following steps: S1: Metal circular plates or copper busbars are installed on the inner walls of both sides of the rotary drum. They achieve frictional contact and conduction with the negative terminal of the external power supply through the support shafts at both ends of the rotary drum. The soluble metal plate is connected to the positive terminal of the power supply and dissolves after being energized, thus replenishing the plating solution with metal ions. S2: The rotary cage rotates, and the resistance device is resisted in the plating solution, which drives each support plate to block the corresponding discharge gate. S3: During material discharge, the rotary cage stops rotating, each support plate disengages from its corresponding discharge gate, the central water pumping system pumps water, the discharge gate opens, and the workpiece is discharged to the filtration and material handling system.
[0014] The beneficial effects of this invention are: The rotary drum is rotatably installed inside the plating tank. The rotary drum is divided into several plating chambers, and workpieces of different models are classified and installed in each plating chamber. The rotary drum has a discharge pipe in the middle, which is hollow. Each side of the discharge pipe near each plating chamber has an inwardly opening discharge door. Workpieces are placed in the plating chamber for plating. When the discharge door is closed, plating is in progress, and the inside of the discharge pipe is sealed from each plating chamber. When the discharge door is open, plating ends, and the inside of the discharge pipe is connected to each plating chamber, allowing the workpieces in the corresponding plating chamber to be sucked into the discharge pipe and transported away by the central pumping system. Because the opening and closing of each discharge door is controlled independently, the workpieces in each plating chamber can be independently controlled to flow out of the discharge pipe. That is to say, when one plating chamber is unloading, the other plating chambers do not stop plating. This improves efficiency and allows one rotary drum to process workpieces with different plating times simultaneously.
[0015] The hydraulic jacking system includes a jacking reference shaft, a jacking device, and a resistance device. The jacking device and the resistance device are respectively installed at both ends of the jacking reference shaft. The jacking reference shaft is rotatably installed inside the discharge pipe. The resistance device is outside the discharge pipe. The jacking device rotates inside the discharge pipe. The jacking device is equipped with support plates adapted to each discharge gate. Several mutually separated discharge chambers are formed between each adjacent support plate and the discharge pipe. Each discharge chamber equally divides the discharge pipe, and the electroplating chamber equally divides the rotating cage. The number of discharge chambers and electroplating chambers is the same. When the rotating cage rotates, the resistance device is resisted by the dye liquid, which drives the jacking reference shaft to rotate, causing each support plate to lock the corresponding discharge gate and prevent the discharge gate from opening. A return torsion spring is provided between the jacking reference shaft and the discharge pipe. When the rotating cage stops rotating, the return torsion spring drives the jacking reference shaft to reset, so that each support plate releases the jacking force applied to the corresponding discharge gate, creating conditions for the discharge gate to open.
[0016] The central pumping system is installed on the coating tank. The system has suction ports on the tank that match the topmost discharge chamber. Each discharge chamber connects sequentially with a suction port as the discharge pipe rotates. During the rotation of the rotating cage, a hydraulic jacking system uses a support plate to hold the corresponding discharge gate in place. When the discharge pipe stops rotating, the support plate disengages from the discharge gates. When the discharge pipe stops and the topmost discharge chamber is connected to the suction port, the central pumping system draws water from the discharge chambers through the suction ports. Because the support plate disengages from the discharge gates when the discharge pipe stops, the gates lose their support and are pushed by the water flow. The bottom flips inward to open, connecting the corresponding electroplating chamber to the corresponding discharge chamber. The filtration and material handling system is connected to the central pumping system and the coating tank. The filtration and material handling system is located below the coating tank, and its bottom is connected to the coating tank, facilitating the return of the plating solution in the filtration and material handling system to the coating tank for reuse. Meanwhile, the plating solution mixed with workpieces, drawn from the central pumping system, is carried to the filtration and material handling system. The filtration and material handling system separates the workpieces from the plating solution, enabling independent delivery of workpieces from each electroplating chamber in the rotary drum. This allows for the simultaneous processing of various workpieces, improving production efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0018] Figure 2 This is a schematic diagram of the rotary cage structure.
[0019] Figure 3 This is a schematic diagram of the rotary cage from another perspective.
[0020] Figure 4 This is a side view of the rotary cage.
[0021] Figure 5 for Figure 4 Enlarged structural diagram of section A-A when the support plate and the discharge gate are pushed together.
[0022] Figure 6 for Figure 4 Enlarged structural diagram of section A-A when the support plate is separated from the discharge gate.
[0023] Figure 7 This is a schematic diagram of a hydraulic jacking system.
[0024] Explanation of reference numerals in the attached figures: 1. Rotary drum; 11. Discharge pipe; 111. Discharge gate; 12. Discharge chamber; 13. Electroplating chamber; 2. Central pumping system; 21. Material extraction port; 3. Hydraulic jacking system; 31. Jacking reference shaft; 32. Jacking device; 321. Support plate; 33. Resistance device; 331. Resistance plate; 4. Coating tank; 5. Filtration and material handling system. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings: like Figure 1 — Figure 7 As shown, this embodiment provides a uniform coating processing device for jewelry, including a rotary drum 1, a central pumping system 2, a hydraulic pushing system 3, a coating tank 4, and a filtration and material handling system 5. The rotary drum 1 is rotatably installed in the coating tank 4. The rotary drum 1 is divided into several electroplating chambers 13. Workpieces of different models are classified and installed in each electroplating chamber 13. The rotary drum 1 has a discharge pipe 11 in the middle. The discharge pipe 11 is hollow. Each side of the discharge pipe 11 near each electroplating chamber 13 has an inwardly opening discharge door 111. Workpieces are placed into the electroplating chamber 13 for electroplating. Electroplating occurs when the discharge door 111 is closed. The inner side is sealed between each electroplating chamber 13; when the discharge door 111 is opened, electroplating ends, and the inner side of the discharge pipe 11 is connected to each electroplating chamber 13, so that the workpiece in the corresponding electroplating chamber 13 is sucked into the discharge pipe 11 and transported away by the central pumping system 2. Since each discharge door 111 is independently controlled to open and close, the workpiece in each electroplating chamber 13 can be independently controlled to flow out from the discharge pipe 11. That is to say, when one electroplating chamber 13 is unloading, the other electroplating chambers 13 will not stop electroplating, which improves efficiency and allows one rotary drum 1 to process workpieces with multiple electroplating times at the same time.
[0026] The hydraulic jacking system 3 includes a jacking reference shaft 31, a jacking device 32, and a resistance device 33. The jacking device 32 and the resistance device 33 are respectively installed at both ends of the jacking reference shaft 31. The jacking reference shaft 31 is rotatably installed inside the discharge pipe 11. The resistance device 33 is outside the discharge pipe 11. The jacking device 32 rotates inside the discharge pipe 11. The jacking device 32 is provided with support plates 321 adapted to each discharge gate 111. Several mutually separated discharge chambers 12 are formed between each adjacent support plate 321 and the discharge pipe 11. Each discharge chamber 12 equally divides the discharge pipe 11 and the electroplating chamber. The rotary cage 1 is divided into 13 equal parts. The number of discharge chambers 12 and electroplating chambers 13 are the same. When the rotary cage 1 rotates, the resistance device 33 is resisted by the dye liquid, which drives the push reference shaft 31 to rotate. This causes each support plate 321 to lock the corresponding discharge gate 111, preventing the discharge gate 111 from opening. A reset torsion spring is provided between the push reference shaft 31 and the discharge pipe 11. When the rotary cage 1 stops rotating, the reset torsion spring drives the push reference shaft 31 to reset, so that each support plate 321 releases the push force applied to the corresponding discharge gate 111, creating conditions for the discharge gate 111 to open.
[0027] A central pumping system 2 is installed on the coating tank 4. The central pumping system 2 has a suction port 21 on the coating tank 4 that matches the topmost discharge chamber 12. Each discharge chamber 12 connects sequentially with the suction port 21 as it rotates with the discharge pipe 11. When the rotary cage 1 rotates, the hydraulic jacking system 3 uses a support plate 321 to press against the corresponding discharge gate 111. When the discharge pipe 11 stops rotating, the support plate 321 disengages from each discharge gate 111. When the discharge pipe 11 stops rotating and the topmost discharge chamber 12 connects with the suction port 21, the central pumping system 2 draws water from the discharge chamber 12 through the suction port 21. Because the support plate 321 disengages from each discharge gate 111 when the discharge pipe 11 stops rotating, each discharge gate 111 loses its support. The corresponding discharge gate 111 flips inward and opens under the pushing action of the water flow, so that the corresponding electroplating chamber 13 is connected to the corresponding discharge chamber 12. The filtration and material handling system 5 is connected to the central pumping system 2 and the coating tank 4 respectively. Specifically, the filtration and material handling system 5 is located on the lower side of the coating tank 4, and the bottom of the filtration and material handling system 5 is connected to the coating tank 4, so that the plating solution in the filtration and material handling system 5 can be returned to the coating tank 4 for reuse. The plating solution mixed with workpieces is drawn out from the central pumping system 2 and carried to the filtration and material handling system 5. The filtration and material handling system 5 separates the workpieces and the plating solution, so that each electroplating chamber 13 in the rotary drum 1 can independently send out workpieces, which can simultaneously process various workpieces and improve production efficiency.
[0028] Specifically, the rotary drum 1 has a hexagonal prism shape, and the outer periphery of the rotary drum 1 is provided with several water-permeable holes to allow the plating solution to flow in.
[0029] Specifically, the filtration and material handling system 5 includes a material handling cart with a filter screen on top and the bottom of the material handling cart connected to the coating tank 4. The end of the central pumping system 2 is connected to the upper part of the filter screen. The central pumping system 2 uses a cyclone pump as a power source to pump out the workpiece and the plating solution. The workpiece pumped out by the central pumping system 2 is left in the filter screen, and the filtrate falls into the material handling cart through the filter screen and is then pumped back to the coating tank 4.
[0030] Specifically, the discharge gate 111 is equipped with a discharge torsion spring at its rotation position. When the discharge torsion spring is in a free state, the discharge gate 111 is closed to prevent the workpiece from leaking out through the discharge gate 111 during barrel plating.
[0031] Specifically, the hydraulic jacking system 3 also includes a jacking torsion spring. The two ends of the jacking torsion spring are respectively installed on the coating tank 4 and the jacking reference shaft 31. When the jacking torsion spring is in a free state, it drives the jacking reference shaft 31 to rotate in the opposite direction. The so-called reversal means that the support plate 321 is disengaged from the corresponding discharge gate 111, releasing the jacking of the discharge gate 111. This allows each discharge gate 111 to be released from mechanical restriction and open when the jacking reference shaft 31 stops rotating.
[0032] Specifically, the resistance device 33 includes several resistance plates 331, each of which is installed at the end of the push reference shaft 31. When the rotary cage 1 rotates, the resistance of the dye liquid outside the rotary cage 1 causes the push reference shaft 31 to rotate relative to the rotary cage 1, so that the support plate 321 can press against the corresponding discharge gate 111.
[0033] Specifically, the extraction port 21 has a fan-shaped cross-section, which matches the cross-sectional shape of the discharge chamber 12, making it easy for the material in the discharge chamber 12 to be quickly discharged from the extraction port 21.
[0034] The coating method using jewelry uniform coating processing equipment includes the following steps: S1: Metal circular plates or copper busbars are installed on the inner walls of both sides of the rotary cage 1. The support shafts at both ends of the rotary cage 1 achieve frictional contact and conduction with the negative terminal of the external power supply. The soluble metal plate is connected to the positive terminal of the power supply and dissolves after being energized, thus replenishing the plating solution with metal ions. S2: Rotating cage 1 rotates, resistance device 33 is resisted in plating solution, which drives each support plate 321 to press against the corresponding discharge gate 111. S3: During material discharge, the rotary cage 1 stops rotating, each support plate 321 disengages from the corresponding discharge gate 111, the central water pumping system 2 pumps water, the discharge gate 111 opens, and the workpiece is discharged to the filter material collection system 5.
[0035] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.
Claims
1. A uniform coating processing device for jewelry, characterized in that, The system includes a rotary drum, a central pumping system, a hydraulic jacking system, a coating tank, and a filtration and material handling system. The rotary drum is rotatably installed inside the coating tank and is divided into several electroplating chambers. A hollow discharge pipe is located in the center of the rotary drum, and each discharge pipe has an inwardly opening discharge door on the side closest to each electroplating chamber. The hydraulic jacking system includes a jacking reference shaft, a jacking device, and a resistance device. The jacking device and resistance device are respectively installed at both ends of the jacking reference shaft. The jacking reference shaft is rotatably installed inside the discharge pipe, and the resistance device is outside the discharge pipe. The jacking device rotates inside the discharge pipe. The jacking device has support plates adapted to each discharge door. Several mutually separated discharge chambers are formed between adjacent support plates and the discharge pipe, and each discharge chamber equally divides the discharge pipe. The electroplating chambers are divided into equally spaced rotating cages. The number of discharge chambers is the same as the number of electroplating chambers. The central pumping system is installed on the coating tank. The central pumping system has a suction port on the coating tank that matches the top discharge chamber. Each discharge chamber connects to the suction port in sequence as it rotates with the discharge pipe. When the rotating cage rotates, the hydraulic push system supports the corresponding discharge gate with a support plate. When the discharge pipe stops rotating, the support plate disengages from each discharge gate. When the discharge pipe stops rotating and the top discharge chamber connects to the suction port, the central pumping system draws the discharge chamber through the suction port, and the corresponding discharge gate opens, making the corresponding electroplating chamber connected to the corresponding discharge chamber. The filtration and material handling system is connected to both the central pumping system and the coating tank. The bottom of the filtration and material handling system is connected to the coating tank. The filtration and material handling system separates the workpiece from the plating solution.
2. The jewelry uniform coating processing equipment according to claim 1, characterized in that, The rotary cage has a hexagonal prism shape, and the outer periphery of the rotary cage is provided with several water-permeable holes.
3. The jewelry uniform coating processing equipment according to claim 1, characterized in that, The filtration and material handling system includes a material handling vehicle, a filter screen is provided on the top of the material handling vehicle, the bottom of the material handling vehicle is connected to a coating tank, the end of the central water pumping system is connected to the upper part of the filter screen, and the central water pumping system uses a cyclone pump as a power source.
4. The jewelry uniform coating processing equipment according to claim 1, characterized in that, The discharge gate is equipped with a discharge torsion spring at its rotation position. When the discharge torsion spring is in a free state, the discharge gate is closed.
5. The jewelry uniform coating processing equipment according to claim 1, characterized in that, The hydraulic jacking system also includes a jacking torsion spring, the two ends of which are respectively installed on the coating tank and the jacking reference shaft. When the jacking torsion spring is in a free state, the support plate disengages from the corresponding discharge gate.
6. The jewelry uniform coating processing equipment according to claim 1, characterized in that, The resistance device includes several resistance plates, each of which is installed at the end of the jacking reference shaft.
7. The jewelry uniform coating processing equipment according to claim 1, characterized in that, The cross-section of the extraction port is fan-shaped.
8. A coating method for a uniform coating processing equipment for jewelry, using the uniform coating processing equipment for jewelry as described in claim 1, characterized in that, Includes the following steps: S1: Metal circular plates or copper busbars are installed on the inner walls of both sides of the rotary drum. They achieve frictional contact and conduction with the negative terminal of the external power supply through the support shafts at both ends of the rotary drum. The soluble metal plate is connected to the positive terminal of the power supply and dissolves after being energized, thus replenishing the plating solution with metal ions. S2: The rotary cage rotates, and the resistance device is resisted in the plating solution, which drives each support plate to block the corresponding discharge gate. S3: During material discharge, the rotary cage stops rotating, each support plate disengages from its corresponding discharge gate, the central water pumping system pumps water, the discharge gate opens, and the workpiece is discharged to the filtration and material handling system.