Aluminum rim surface plating treatment device and process

Abstract

The invention discloses an aluminum rim surface plating treatment device and process, and particularly relates to the field of plating equipment.The aluminum rim surface plating treatment device comprises a hanging conveying mechanism, a plating mechanism is arranged below the output end of the hanging conveying mechanism and comprises a plating box, an electrolyte solution is contained in the plating box, and the electrolyte solution is arranged below the output end of the hanging conveying mechanism. A linear driving mechanism is arranged at the output end of the hanging conveying mechanism, and a bearing assembly is arranged at the output end of the linear driving mechanism. By arranging the bearing assembly and the bubble eliminating mechanism, when a cutter ring aluminum rim is horizontally placed in an electrolyte solution to be plated, a connecting shaft drives the cutter ring aluminum rim to horizontally rotate, the electrolyte solution is filled into the cutter ring aluminum rim through a nozzle via a spoke hole, and air in a cavity of the cutter ring aluminum rim is discharged; the electrolyte solution can be in full contact with the outer surface of the cutter ring aluminum rim and the inner wall of the cavity, it is guaranteed that the thickness of a plating layer is uniform, and the service life of the cutter ring aluminum rim is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of plating equipment, and more specifically, the present invention relates to a surface plating treatment device and process for aluminum bicycle rims. Background Art

[0002] A bicycle aluminum rim is a rim made of aluminum alloy material, which is used to support the tire and bear the weight of the rider, and has the advantages of light weight, good strength-to-weight ratio, etc. According to different design characteristics and uses, bicycle aluminum rims can be divided into knife rims that emphasize aerodynamic performance and flat rims suitable for various riding conditions. Bicycles with higher requirements for speed and efficiency generally use knife rims. In order to reduce weight and enhance the structural rigidity of the aluminum rim, a cavity is provided inside the knife rim aluminum rim. In order to maintain the structural integrity and functionality of the wheel, spoke holes are provided on the knife rim aluminum rim. The spoke holes communicate with the cavity, and spokes are installed in the spoke holes. The spokes can connect the knife rim and the hub to provide the necessary supporting force.

[0003] In order to avoid corrosion of the aluminum rim caused by humid air, enhance the anti-corrosion performance of the aluminum rim, and increase the surface hardness and wear resistance of the aluminum rim, it is necessary to perform plating treatment on the surface of the aluminum rim during the production and processing process. In the prior art, the pre-treated aluminum rim is used as the anode and placed in a plating tank containing an electrolyte solution, so that the electrolyte solution completely submerges the aluminum rim. Under the action of direct current, a dense aluminum oxide film will be formed on the aluminum surface. After plating is completed, the aluminum rim is taken out from the electrolyte solution.

[0004] However, the above prior art still has deficiencies. Since the knife rim aluminum rim has a cavity, when the rim starts to be immersed in the electrolyte solution during plating, the air in the cavity will be compressed. As the knife rim aluminum rim sinks further, the hydraulic pressure of the external electrolyte solution increases, and since the liquid in the cavity is difficult to compress due to the presence of air, a relatively low-pressure area will be formed. Therefore, when the rim is completely immersed, the air in the cavity cannot be smoothly discharged through the spoke holes, and the inner wall of the cavity cannot come into full contact with the electrolyte solution during plating, resulting in uneven plating layer thickness and shortening the service life of the knife rim aluminum rim. Summary of the Invention

[0005] The present invention provides an aluminum rim surface plating treatment device and process, and aims to solve the following problem: when the existing aluminum rim surface plating treatment device plates the cutter ring aluminum rim, since the cutter ring aluminum rim has a cavity, when the rim begins to be immersed in the electrolyte solution during plating, the air in the cavity will be compressed. As the cutter ring aluminum rim sinks further, the hydraulic pressure of the external electrolyte solution increases, while the liquid inside the cavity is difficult to compress due to the presence of air, and a relatively low-pressure area is formed. Therefore, when the rim is completely immersed, the air in the cavity cannot be smoothly discharged through the spoke holes. During plating, the inner wall of the cavity cannot fully contact with the electrolyte solution, and the thickness of the plating layer is uneven, resulting in a shortened service life of the cutter ring aluminum rim.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a surface plating treatment device for an aluminum wheel rim, comprising a hanging conveying mechanism, a plating mechanism is arranged below the output end of the hanging conveying mechanism, the plating mechanism comprises a plating box, an electrolyte solution is contained in the plating box, a linear driving mechanism is arranged on the output end of the hanging conveying mechanism, a supporting assembly is arranged on the output end of the linear driving mechanism, the output end of the hanging conveying mechanism is used to drive the supporting assembly to move horizontally, and the output end of the linear driving mechanism is used to drive the supporting assembly to move vertically and rotate horizontally; The supporting assembly includes a supporting seat, a plurality of rollers 1 are rotatably arranged on the upper surface of the supporting seat, a knife ring aluminum rim is placed on the supporting seat, the supporting seat and the knife ring aluminum rim are concentrically arranged, the knife ring aluminum rim is provided with a cavity and spoke holes, the roller 1 is rotatably arranged with the bottom of the knife ring aluminum rim, and the supporting seat is also vertically rotatably arranged with a roller 2, and the roller 2 is horizontally limited to the knife ring aluminum rim by rolling with the knife ring aluminum rim; A bubble elimination mechanism is arranged on the output end of the hanging conveying mechanism, and the bubble elimination mechanism comprises a second pump. A nozzle is arranged at the discharge end of the second pump, and the nozzle is arranged toward the spoke holes. The input end of the second pump draws electrolyte solution and transports it into the cavity through the nozzle and the spoke holes.

[0007] In a preferred embodiment, the linear drive mechanism includes a fixed frame, on which a linear drive 1 and a rotary drive 1 are fixedly arranged, a connecting shaft is rotatably arranged on the output shaft of the linear drive 1, a pulley 1 is fixedly arranged on the output shaft of the rotary drive 1, a pulley 2 is rotatably arranged on the fixed frame, and pulley 1 and pulley 2 are arranged via the same belt drive.

[0008] In a preferred embodiment, two limit plates are fixedly arranged on the connecting shaft, a movable sleeve is provided on the second pulley, the ring is located between the two limit plates, an auxiliary seat is fixedly arranged on the ring, the auxiliary seat and the fixed frame are vertically slidably arranged, a flexible tube is arranged between the discharge end of the second pump and the nozzle, a second linear drive is fixedly arranged on the auxiliary seat, the output shaft of the linear drive is fixedly arranged on the nozzle, and the nozzle includes two bending joints, which are used to be inserted into the spoke holes.

[0009] In a preferred embodiment, the bubble elimination mechanism further includes a plugging seat. A chute is formed on the supporting seat, and the plugging seat is slidably arranged in the chute. An elastic member is arranged between the plugging seat and the inner wall of the chute. The plugging seat is used to plug the spoke holes formed in the knife-ring aluminum rim.

[0010] In a preferred embodiment, a liquid discharging mechanism is arranged on the fixing frame. The liquid discharging mechanism includes a second rotation driver. The output shaft of the second rotation driver is fixedly arranged with the fixing frame. A first blower is fixedly arranged on the fixing frame. The discharging end of the first blower is fixedly communicated with the discharging end of the pump machine two. Gate valves are fixedly arranged on both the discharging end of the first blower and the discharging end of the pump machine two.

[0011] In a preferred embodiment, the hanging conveying mechanism includes a supporting frame. A plurality of driving wheels are rotatably arranged on the supporting frame. The same driving chain is arranged on the plurality of driving wheels in a transmission manner. A connecting seat is fixedly arranged on the driving chain. The second rotation driver is fixedly arranged on the connecting seat.

[0012] In a preferred embodiment, a plurality of guiding wheels are rotatably arranged on the connecting seat. The plurality of guiding wheels are symmetrically arranged in pairs. The guiding wheels are in rolling contact with the supporting frame.

[0013] In a preferred embodiment, an air inlet pipe and a liquid replacement pipe are fixedly arranged in the plating tank. A second blower and a first pump machine are fixedly arranged on the plating tank. A plurality of discharging holes are formed in both the second blower and the first pump machine.

[0014] In a preferred embodiment, the discharging end of the second blower is fixedly communicated with the air inlet pipe. The discharging end of the first pump machine is fixedly communicated with the liquid replacement pipe. A liquid discharging pipe is fixedly communicated with the plating tank.

[0015] A processing technology of an aluminum rim surface plating treatment device includes the following steps: Step 1: Horizontally place the knife-ring aluminum rim on the supporting seat, limit the knife-ring aluminum rim in the horizontal direction through the second roller, and install the supporting seat on the connecting shaft; Step 2: Horizontally move the connecting seat so that the supporting seat is directly above the plating tank, and immerse the knife-ring aluminum rim into the electrolyte solution in the plating tank by vertically moving down the output shaft of the first linear driver; Step 3: Drive the connecting shaft to rotate by rotating the output shaft of the first belt wheel. The rotation of the connecting shaft drives the knife-ring aluminum rim to rotate synchronously. Start the pump machine two. The pump machine two pumps the electrolyte solution in the plating tank and conveys it to the cavity through the nozzle and the spoke holes to discharge the bubbles in the cavity; Step 4: Drive the connecting shaft to rotate in the reverse direction. Under the action of inertia, the connecting shaft and the knife-ring aluminum rim rotate in the reverse direction, so that a relative rotation is generated between the knife-ring aluminum rim and the supporting seat, and the knife-ring aluminum rim fully contacts and reacts with the electrolyte solution.

[0016] The beneficial effects of the present invention are as follows: 1. By setting the supporting component and the air bubble eliminating mechanism, when the knife ring aluminum rim is horizontally placed in the electrolyte solution for plating, the connecting shaft drives the knife ring aluminum rim to rotate horizontally, and the nozzle fills the knife ring aluminum rim with the electrolyte solution through the spoke holes, discharging the air in the cavity of the knife ring aluminum rim. The electrolyte solution can fully contact the outer surface of the knife ring aluminum rim and the inner wall of the cavity, ensuring uniform thickness of the plating layer and extending the service life of the knife ring aluminum rim.

[0017] 2. By setting the liquid discharging mechanism, after the plating of the knife ring aluminum rim is completed, some of the spoke holes of the knife ring aluminum rim are blocked, and air is introduced into the cavity of the knife ring aluminum rim through the fan I to discharge the electrolyte solution in the cavity of the knife ring aluminum rim, avoiding excessive consumption of the electrolyte solution in the plating tank, thereby ensuring the plating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the device of the present invention.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the device of the present invention.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the plating tank of the present invention.

[0021] Figure 4 It is a front view structural schematic diagram of the plating tank of the present invention.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the linear driver I of the present invention.

[0023] Figure 6 It is a front view structural schematic diagram of the pump II of the present invention.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the supporting seat of the present invention.

[0025] Figure 8 It is a top view structural schematic diagram of the supporting seat of the present invention.

[0026] Figure 9 It is a top view structural schematic diagram of the blocking seat for blocking the spoke holes of the present invention.

[0027] Figure 10 It is a front view structural schematic diagram of the pump IV of the present invention.

[0028] Figure 11 It is a three-dimensional structural schematic diagram of the knife ring aluminum rim of the present invention.

[0029] Figure 12This is a schematic cross-sectional view of the main view of the knife-ring aluminum rim of the present invention.

[0030] Figure 13 This is a schematic flow chart of the plating process of the present invention.

[0031] The reference numerals are: 1, hanging conveyor mechanism; 11, support frame; 12, driving wheel; 13, driving chain; 14, connecting seat; 2, plating mechanism; 21, plating tank; 22, intake pipe; 23, liquid change pipe; 24, second blower; 25, first pump; 26, drain pipe; 3, linear driving mechanism; 31, fixing frame; 32, first linear driver; 33, connecting shaft; 34, first rotating driver; 35, first belt pulley; 36, second belt pulley; 37, supporting component; 371, supporting seat; 372, first roller; 373, positioning plate; 374, second roller; 375, chute; 4, bubble elimination mechanism; 41, second pump; 42, spray head; 421, bent joint; 43, plugging seat; 44, elastic member; 5, liquid discharge mechanism; 51, second rotating driver; 52, first blower; 53, gate valve; a, knife-ring aluminum rim; b, cavity; c, spoke hole. Detailed implementation manners

[0032] The following further describes the present application in detail with reference to the drawings. It is necessary to point out here that the following specific implementation manners are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0033] Refer to the attached drawings of the specification Figures 1 to 7 、 Figure 11 and Figure 12 A surface plating treatment device for an aluminum rim includes a hanging conveyor mechanism 1. Below the output end of the hanging conveyor mechanism 1, there is a plating mechanism 2. The plating mechanism 2 includes a plating tank 21 which contains an electrolyte solution. On the output end of the hanging conveyor mechanism 1, there is a linear driving mechanism 3. On the output end of the linear driving mechanism 3, there is a supporting component 37. The output end of the hanging conveyor mechanism 1 is used to drive the supporting component 37 to move horizontally, and the output end of the linear driving mechanism 3 is used to drive the supporting component 37 to move vertically and rotate horizontally; The supporting component 37 includes a supporting seat 371. On the upper surface of the supporting seat 371, a plurality of first rollers 372 are rotatably arranged. On the supporting seat 371, a knife-ring aluminum rim a is placed. The supporting seat 371 and the knife-ring aluminum rim a are concentrically arranged. The knife-ring aluminum rim a is provided with a cavity b and a spoke hole c. The first rollers 372 are in rolling contact with the bottom of the knife-ring aluminum rim a. On the supporting seat 371, a second roller 374 is also vertically rotatably arranged. The second roller 374 horizontally limits the knife-ring aluminum rim a by rolling contact with it; At the output end of the hanging conveyor mechanism 1, there is a bubble elimination mechanism 4. The bubble elimination mechanism 4 includes a second pump 41. At the discharge end of the second pump 41, there is a nozzle 42. The nozzle 42 is oriented towards the spoke hole c. The input end of the second pump 41 extracts the electrolyte solution and conveys it through the nozzle 42 and the spoke hole c into the cavity b.

[0034] It should be noted that the plating tank 21 contains an electrolyte solution and the material as the anode. The knife-ring aluminum rim a and the anode are immersed in the electrolyte solution and are connected through an external power supply to form a circuit. A heater is installed in the plating tank 21 for heating. Electroplating, as a mature existing technology, will not be elaborated here too much.

[0035] It also should be noted that a positioning plate 373 is fixedly arranged on the supporting seat 371. The second roller 374 is rotatably arranged with the positioning plate 373. The number of the positioning plates 373 is set to two or more, and the positioning plates 373 need to be arranged at equal intervals in an arc along the central axis of the supporting seat 371. The input end of the second pump 41 is located in the electrolyte solution in the plating tank 21. The second pump 41 includes but is not limited to a peristaltic pump. The peristaltic pump has good self-priming performance and can suck in fluid when starting, without the need for additional water diversion or pre-filling steps. After starting the second pump 41, its input end begins to extract the electrolyte solution in the plating tank 21. The discharge end of the nozzle 42 is inclined, and the water flow ejected from the nozzle 42 towards the spoke hole c can flow along the radian direction of the knife-ring aluminum rim a.

[0036] Furthermore, the supporting seat 371 is detachably installed at the output end of the linear drive mechanism 3. The knife-ring aluminum rim a is installed on the supporting seat 371 by removing the supporting seat 371, and then subsequent plating operations are carried out. There is a cavity b inside the knife-ring aluminum rim a, and a spoke hole c is also opened on the knife-ring aluminum rim a. The cavity b is communicated with the spoke hole c. The design of the knife-ring aluminum rim a emphasizes more on aerodynamic performance and is usually used in road bicycles and triathlon bicycles. For such bicycles to improve the riding efficiency, the weight of the knife-ring aluminum rim a used is also lighter. The width of the supporting seat 371 is relatively narrow, and the hollow holes opened on the supporting seat 371 are relatively large. When plating the knife-ring aluminum rim a, the supporting seat 371 will not affect the knife-ring aluminum rim a.

[0037] The implementation scenario is specifically as follows: Place the aluminum rim of the knife ring a on the supporting seat 371. Multiple first rollers 372 are all in contact with the bottom of the aluminum rim of the knife ring a, and the second roller 374 is in contact with the side wall of the aluminum rim of the knife ring a. The second roller 374 limits the aluminum rim of the knife ring a in the horizontal direction, so that the aluminum rim of the knife ring a is concentric with the supporting seat 371, and the aluminum rim of the knife ring a is also concentric with the output end of the linear drive mechanism 3. The output end of the nozzle 42 is set to face the spoke hole c. The output end of the hanging conveyor mechanism 1 drives the linear drive mechanism 3 to move horizontally above the plating tank 21. When the linear drive mechanism 3 moves directly above the plating tank 21, the output end of the linear drive mechanism 3 drives the supporting seat 371 to move vertically downward. During the vertical downward movement of the supporting seat 371, the nozzle 42 moves synchronously with the supporting seat 371, and the discharge end of the nozzle 42 always faces the spoke hole c. When the aluminum rim of the knife ring a is in the electrolyte solution in the plating tank 21, the electrolyte solution enters the cavity b through the spoke hole c. The air in the cavity b will be compressed. As the aluminum rim of the knife ring a sinks further, the hydraulic pressure of the external electrolyte solution increases, while the liquid in the cavity is difficult to compress due to the presence of air, forming a relatively low-pressure area. When the aluminum rim of the knife ring a is completely immersed, the air in the cavity b cannot be smoothly discharged through the spoke hole c. Therefore, a second pump 41 is provided, so that the input end of the second pump 41 extracts the electrolyte solution. The electrolyte solution extracted by the input end of the second pump 41 enters the cavity b through the nozzle 42 and the spoke hole c. The remaining air in the cavity b is squeezed out by increasing the volume of the electrolyte solution in the cavity b. During the plating process, the output end of the linear drive mechanism 3 will drive the supporting seat 371 to rotate horizontally in the electrolyte solution. The rotation of the supporting seat 371 can drive the aluminum rim of the knife ring a to rotate horizontally. The rotation of the aluminum rim of the knife ring a can make the nozzle 42 spray the electrolyte solution into each spoke hole c, further improving the effect of removing the remaining air in the cavity b. When the nozzle 42 evenly sprays the electrolyte solution into each spoke hole c, the output shaft of the linear drive mechanism 3 drives the supporting seat 371 to rotate in the reverse direction. Under the action of inertia, the aluminum rim of the knife ring a and the supporting seat 371 rotate in the reverse direction, making the outer surface of the aluminum rim of the knife ring a and the electrolyte solution contact more fully. This can not only improve the plating effect on the outer surface of the aluminum rim of the knife ring a, but also change the flow direction of the electrolyte solution in the cavity b. The nozzle 42 continuously sprays the electrolyte solution into the cavity b to further ensure that the air in the cavity b can be smoothly discharged. Compared with the existing plating technology, it can uniformly plate the outer surface of the aluminum rim of the knife ring a and the cavity b, avoid the corrosion of the aluminum rim of the knife ring a caused by humid air, and extend the service life of the aluminum rim of the knife ring a.

[0038] Refer to the attached drawings of the specification Figure 4 And Figure 5, To facilitate driving the aluminum rim a of the cutter ring, the aluminum rim a of the cutter ring is placed in the electrolyte solution in the plating tank 21. At the same time, the aluminum rim a of the cutter ring is driven to rotate in the electrolyte solution to improve the plating effect. Specifically, the linear drive mechanism 3 includes a fixed frame 31. A linear drive one 32 and a rotary drive one 34 are fixedly arranged on the fixed frame 31. A connecting shaft 33 is rotatably arranged on the output shaft of the linear drive one 32. A pulley one 35 is fixedly arranged on the output shaft of the rotary drive one 34. A pulley two 36 is rotatably arranged on the fixed frame 31. The pulley one 35 and the pulley two 36 are arranged by belt drive.

[0039] It should be noted that the linear drive one 32 is set as a cylinder. A lifting seat is fixedly arranged on the output shaft of the cylinder. The connecting shaft 33 is rotatably arranged with the lifting seat. The rotary drive one 34 is set as a motor. The pulley one 35 is fixedly arranged with the output shaft of the motor. A convex rib is fixedly arranged on the connecting shaft 33. A sliding hole is formed in the pulley two 36. An auxiliary hole is formed in the inner wall of the sliding hole. The connecting shaft 33 is slidably arranged in the sliding hole. The convex rib is slidably arranged in the auxiliary hole. The connecting shaft 33 can slide vertically with respect to the pulley two 36. When the pulley two 36 rotates, due to the convex rib, the rotation of the pulley two 36 can drive the connecting shaft 33 to rotate synchronously. The supporting seat 371 is installed on the pulley two 36 by means of fastening with a positioning pin or a bolt, which is convenient for removing the supporting seat 371 from the pulley two 36.

[0040] It should also be noted that when the rotary drive one 34 is started, the rotation of the output shaft of the rotary drive one 34 drives the pulley one 35 to rotate. The pulley one 35 drives the pulley two 36 to rotate synchronously through the belt. The rotation of the pulley two 36 drives the connecting shaft 33 to rotate. When the linear drive one 32 is started, the movement of the output shaft of the linear drive one 32 drives the moving seat to move vertically. The vertical movement of the moving seat drives the connecting shaft 33 to move, realizing the effect of driving the aluminum rim a of the cutter ring to move vertically and rotate.

[0041] Refer to the attached instructions Figures 8 to 10, the output end of the nozzle 42 faces the wire-radiating hole c to spray out the electrolyte solution. Since the distance between two adjacent wire-radiating holes c is small, the electrolyte solution entering the cavity b through the nozzle 42 may be discharged through the adjacent wire-radiating holes c, unable to ensure that the electrolyte solution is completely filled into the cavity b, resulting in the bubbles in the cavity b escaping along the circumferential direction of the knife-ring aluminum rim a in the cavity b, and causing some small bubbles to always remain in the cavity b and unable to be discharged. In order to ensure that the protective layer can be evenly plated in the cavity b and eliminate the negative impact of the residual bubbles, specifically, two limiting plates are fixedly arranged on the connecting shaft 33, a collar is movably sleeved on the pulley two 36, the collar is located between the two limiting plates, an auxiliary seat is fixedly arranged on the collar, the auxiliary seat is vertically slidably arranged with the fixed frame 31, a flexible pipe is arranged between the discharge end of the pump two 41 and the nozzle 42, a linear driver two is fixedly arranged on the auxiliary seat, the output shaft of the linear driver is fixedly arranged with the nozzle 42, and the nozzle 42 includes two bent joints 421 which are used for inserting into the wire-radiating hole c. The bubble elimination mechanism 4 further includes a plugging seat 43, a chute 375 is formed on the supporting seat 371, the plugging seat 43 is slidably arranged in the plugging seat 43, an elastic member 44 is arranged between the plugging seat 43 and the inner wall of the chute 375, and the plugging seat 43 is used for plugging the wire-radiating hole c formed on the knife-ring aluminum rim a.

[0042] It should be noted that the elastic member 44 is set as a spring, the spring is fixedly arranged on the plugging seat 43, the end of the spring far from the plugging seat 43 is fixedly arranged with the inner wall of the chute 375, a guide rod is fixedly arranged on the inner wall of the chute 375, and the plugging seat 43 is slidably sleeved on the guide rod. The linear driver two is set as a cylinder, and the output shaft of the cylinder is fixedly arranged with the nozzle 42. The discharge ends of the two bent joints 421 are arranged to be away from each other, and the discharge end of the bent joint 421 is adapted to the wire-radiating hole c. An arc-shaped groove is formed on the side of the elastic member 44, and the arc-shaped groove is adapted to the side of the knife-ring aluminum rim a. A plurality of plugging seats 43 are arranged on the supporting seat 371 at equal intervals in a circular shape.

[0043] It also should be noted that, remove the supporting seat 371, and then move the knife-ring aluminum rim a downward from directly above the supporting seat 371. The arc-shaped side of the knife-ring aluminum rim a presses the plugging seat 43, and under the action of the elastic force of the elastic member 44, the plugging seat 43 moves towards the pulley two 36. After the knife-ring aluminum rim a is horizontally placed on the supporting seat 371, under the action of the elastic force of the elastic member 44, the plugging seat 43 is closely attached to the arc-shaped side of the knife-ring aluminum rim a to plug the wire-radiating hole c. The number of the plugging seats 43 is four less than the number of the wire-radiating holes c on the knife-ring aluminum rim a. Refer to Figure 9, and the four least blocking seats 43 are symmetrically distributed on the supporting seat 371 in groups of two, that is, there are four corresponding cavities b that are not blocked, the pulley 2 36 moves vertically downward to drive the supporting seat 371 to move vertically downward, and the pulley 2 36 drives the bending joint 421 to move vertically downward through the output end of the linear drive 2 during the vertical downward movement. When the knife ring aluminum wheel rim a is located in the electrolyte solution, the electrolyte solution will enter the cavity b through the spoke hole c that is only connected to the outside, and then the linear drive 2 is started, and the movement of the output shaft of the linear drive 2 drives the bending joint 421 to insert into the spoke hole c. At this time, the cavity b Only two spoke holes c are left to be connected to the external electrolyte solution, and the pump 2 41 is started. The input end of the pump 2 41 draws the electrolyte solution into the cavity b through the bending joint 421 and the spoke holes c. The electrolyte solution entering the cavity b flows along the arc direction of the cutter ring aluminum rim a, and the gas in the cavity b is discharged through the corresponding two spoke holes c, thereby eliminating the bubbles in the cavity b, so that the outer surface of the cutter ring aluminum rim a and the cavity b can fully contact with the electrolyte solution, thereby performing a complete and uniform plating process, ensuring the quality of the cutter ring aluminum rim a, and extending the service life of the cutter ring aluminum rim a.

[0044] Refer to the instruction manual Figure 10 After the plating is completed on the outer surface of the cutter ring aluminum rim a and the inner wall of the cavity b, when the cutter ring aluminum rim a is taken out from the electrolyte solution, the electrolyte solution remaining in the cavity b cannot be discharged due to the multiple spoke holes c arranged in an annular shape with equal spacing on the cutter ring aluminum rim a, and a large amount of electrolyte solution will remain in the cavity b, which will not only lead to a decrease in the electrolyte solution in the plating box 21, but also a decrease in the amount of electrolyte solution will lead to a change in the proportion of each component in the electroplating solution, thereby affecting the current density and deposition rate in the electroplating process, which may lead to poor quality of the subsequent workpiece coating. Stability, such as uneven thickness, poor adhesion, etc., and the electrolyte solution remaining in the cavity b may cause environmental pollution. In order to avoid the above situation, specifically, a drainage mechanism 5 is arranged on the fixed frame 31, and the drainage mechanism 5 includes a rotating driver 2 51. The output shaft of the rotating driver 2 51 is fixedly arranged on the fixed frame 31, and a fan 1 52 is fixedly arranged on the fixed frame 31. The discharge end of the fan 1 52 is fixedly connected to the discharge end of the pump 2 41, and a gate valve 53 is fixedly arranged on the discharge end of the fan 1 52 and the discharge end of the pump 2 41.

[0045] It should be noted that the gate valve 53 is configured as a solenoid valve, the discharge end of the fan 52 and the discharge end of the pump 41 form a "Y"-shaped pipeline, the two gate valves 53 are respectively arranged in the upper parts of the two "Y" shapes, the fan 52 is configured as a motor, and the output shaft of the motor is fixed to the fixed frame 31.

[0046] It should also be noted that when plating the knife-ring aluminum rim a, the fixing frame 31 keeps the knife-ring aluminum rim a on the supporting seat 371 in a horizontal state. Two bending joints 421 are inserted into the spoke holes c, and two spoke holes c are reserved for communication with the outside. The electrolyte liquid is filled into the cavity b by starting the second pump 41. At this time, the gate valve 53 on the first blower 52 is in a closed state. When the knife-ring aluminum rim a is lifted above the liquid level of the electrolyte solution after plating is completed, the gate valve 53 at the discharge end of the first blower 52 is opened and the gate valve 53 at the discharge end of the second pump 41 is closed. The rotation drive 51 is started, and the rotation of the output shaft of the rotation drive 51 drives the fixing frame 31 to rotate along the central axis of its output shaft, causing the fixing frame 31 to tilt, and then causing the knife-ring aluminum rim a to tilt. Part of the electrolyte solution in the cavity b is discharged from the cavity b through the spoke holes c communicating with the outside. At this time, the first blower 52 is started, and the first blower 52 fills the bending joint 421 with gas. The gas enters the cavity b through the spoke holes c. Under the action of the thrust generated in the gas flow direction, the residual gas in the cavity b is discharged through the spoke holes c communicating with the outside, thereby achieving the effect of discharging the residual electrolyte solution in the cavity b, avoiding the reduction of the electrolyte solution in the plating tank 21, and ensuring the quality of the plating process.

[0047] Refer to the attached drawings of the specification Figure 1 With Figure 2 , in order to reduce the workload of the staff and perform continuous plating on the knife-ring aluminum rim a to improve production efficiency. Specifically, the hanging conveyor mechanism 1 includes a support frame 11. A plurality of driving wheels 12 are rotatably arranged on the support frame 11. The same driving chain 13 is arranged on the plurality of driving wheels 12 in a transmission manner. A connecting seat 14 is fixedly arranged on the driving chain 13. The rotation drive 51 is fixedly arranged on the connecting seat 14. A plurality of guide wheels are rotatably arranged on the connecting seat 14. The plurality of guide wheels are symmetrically arranged in pairs, and the guide wheels are arranged in a rolling manner with the support frame 11.

[0048] It should be noted that a motor is fixedly arranged on the hanging conveyor mechanism 1, and the output shaft of the motor is fixedly arranged with the driving wheel 12.

[0049] It should also be noted that when in use, the motor is started. The rotation of the output shaft of the motor causes the driving wheel 12 to rotate. The driving wheel 12 drives the driving chain 13 to move. The movement of the driving chain 13 drives the connecting seat 14 to move, achieving the effect of driving the connecting seat 14 to reciprocate along the arrangement direction of the support frame 11. When the connecting seat 14 is located above the plating tank 21, the rotation of the driving wheel 12 can be stopped, and then the plating operation on the knife-ring aluminum rim a can be carried out, which can realize continuous processing and improve production efficiency.

[0050] Refer to the attached drawings of the specification Figure 3, in order to improve the plating efficiency, specifically, an air inlet pipe 22 and a liquid changing pipe 23 are fixedly arranged in the plating tank 21, and a second blower 24 and a first pump 25 are fixedly arranged on the plating tank 21. A plurality of discharge holes are formed in both the second blower 24 and the first pump 25. The discharge end of the second blower 24 is fixedly communicated with the air inlet pipe 22, the discharge end of the first pump 25 is fixedly communicated with the liquid changing pipe 23, and a liquid discharge pipe 26 is fixedly communicated with the plating tank 21.

[0051] It should be noted that a gate valve is fixedly arranged on the liquid discharge pipe 26. The first pump 25 is started to input liquid into the plating tank 21. During plating, the second blower 24 is started to discharge air bubbles through the air inlet pipe 22. The air bubbles cause the electrolyte solution in the plating tank 21 to flow, further improving the plating effect. The gate valve on the liquid discharge pipe 26 is opened to replace the liquid in the plating tank 21.

[0052] Refer to the attached drawings of the specification Figure 13 , a processing technology of a surface plating treatment device for an aluminum wheel rim, comprising the following steps: Step 1: Horizontally place the knife-ring aluminum wheel rim a on the supporting seat 371, limit the knife-ring aluminum wheel rim a in the horizontal direction through the second roller 374, and install the supporting seat 371 on the connecting shaft 33; Step 2: Horizontally move the connecting seat 14 so that the supporting seat 371 is located directly above the plating tank 21, and immerse the knife-ring aluminum wheel rim a into the electrolyte solution in the plating tank 21 by vertically moving down the output shaft of the first linear driver 32; Step 3: Drive the connecting shaft 33 to rotate by rotating the output shaft of the first pulley 35. The rotation of the connecting shaft 33 drives the knife-ring aluminum wheel rim a to rotate synchronously. Start the second pump 41. The second pump 41 extracts the electrolyte solution in the plating tank 21 and transports it to the cavity b through the nozzle 42 and the spoke hole c to discharge the air bubbles in the cavity b; Step 4: Drive the connecting shaft 33 to rotate in the reverse direction. Under the action of inertia, the connecting shaft 33 and the knife-ring aluminum wheel rim a rotate in the reverse direction, causing relative rotation between the knife-ring aluminum wheel rim a and the supporting seat 371, and enabling the knife-ring aluminum wheel rim a to fully contact and react with the electrolyte solution.

[0053] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A surface coating treatment device for an aluminum wheel rim, characterized in that: It comprises a hanging conveying mechanism (1), a plating mechanism (2) is arranged below the output end of the hanging conveying mechanism (1), the plating mechanism (2) comprises a plating box (21) containing an electrolyte solution, a linear drive mechanism (3) is arranged on the output end of the hanging conveying mechanism (1), a supporting component (37) is arranged on the output end of the linear drive mechanism (3), and the output end of the linear drive mechanism (3) is used to drive the supporting component (37) to move vertically and rotate horizontally; The supporting assembly (37) comprises a supporting seat (371), a plurality of rollers (372) are rotatably arranged on the upper surface of the supporting seat (371), a knife ring aluminum rim (a) is placed on the supporting seat (371), the supporting seat (371) and the knife ring aluminum rim (a) are concentrically arranged, the rollers (372) are rollably arranged with the bottom of the knife ring aluminum rim (a), and a roller (374) is also vertically rotatably arranged on the supporting seat (371), and the rollers (374) are horizontally limited to the knife ring aluminum rim (a) by rolling with the knife ring aluminum rim (a); The output end of the hanging conveying mechanism (1) is provided with a bubble eliminating mechanism (4), the bubble eliminating mechanism (4) comprises a second pump (41), a discharge end of the second pump (41) is provided with a nozzle (42), the nozzle (42) is arranged toward the spoke hole (c), and the input end of the second pump (41) extracts electrolyte solution and transports it into the cavity (b) through the nozzle (42) and the spoke hole (c).

2. The aluminum rim surface coating treatment device according to claim 1, characterized in that: The linear drive mechanism (3) comprises a fixed frame (31), a linear drive 1 (32) and a rotary drive 1 (34) are fixedly arranged on the fixed frame (31), a connecting shaft (33) is rotatably arranged on the output shaft of the linear drive 1 (32), a pulley 1 (35) is fixedly arranged on the output shaft of the rotary drive 1 (34), and a pulley 2 (36) is rotatably arranged on the fixed frame (31), and the pulley 1 (35) and the pulley 2 (36) are arranged via the same belt transmission.

3. The aluminum rim surface coating treatment device according to claim 2, characterized in that: Two limit plates are fixedly arranged on the connecting shaft (33); a sleeve is movably sleeved on the second pulley (36); the sleeve is located between the two limit plates; an auxiliary seat is fixedly arranged on the sleeve; the auxiliary seat and the fixed frame (31) are vertically slidably arranged; a flexible pipe is arranged between the discharge end of the second pump (41) and the nozzle (42); a second linear drive is fixedly arranged on the auxiliary seat; the output shaft of the linear drive is fixedly arranged with the nozzle (42); the nozzle (42) comprises two bending joints (421); the bending joints (421) are used to be inserted into the spoke holes (c).

4. The aluminum rim surface coating treatment device according to claim 3, characterized in that: The bubble elimination mechanism (4) further comprises a blocking seat (43), a slide groove (375) is provided on the supporting seat (371), the blocking seat (43) is slidably arranged in the blocking seat (43), an elastic member (44) is arranged between the blocking seat (43) and the inner wall of the slide groove (375), and the blocking seat (43) is used to block the spoke holes (c) provided on the cutter ring aluminum rim (a).

5. The aluminum rim surface coating treatment device according to claim 4, characterized in that: The fixed frame (31) is provided with a drainage mechanism (5), the drainage mechanism (5) comprising a second rotary driver (51), the output shaft of the second rotary driver (51) being fixedly arranged on the fixed frame (31), a first fan (52) being fixedly arranged on the fixed frame (31), a discharge end of the first fan (52) being fixedly connected to a discharge end of the second pump (41), and gate valves (53) being fixedly arranged on both the discharge end of the first fan (52) and the discharge end of the second pump (41).

6. The aluminum rim surface coating treatment device according to claim 5, characterized in that: The hanging conveying mechanism (1) comprises a support frame (11), a plurality of driving wheels (12) are rotatably arranged on the support frame (11), a same driving chain (13) is transmitted on the plurality of driving wheels (12), a connecting seat (14) is fixedly arranged on the driving chain (13), and the second rotating driver (51) is fixedly arranged on the connecting seat (14).

7. The aluminum rim surface coating treatment device according to claim 6, characterized in that: A plurality of guide wheels are rotatably arranged on the connection seat (14), the plurality of guide wheels are symmetrically arranged in pairs, and the guide wheels and the support frame (11) are rollingly arranged.

8. The aluminum rim surface coating treatment device according to claim 7, characterized in that: An air inlet pipe (22) and a liquid exchange pipe (23) are fixedly arranged in the plating box (21), and a second fan (24) and a first pump (25) are fixedly arranged on the plating box (21), and a plurality of discharge holes are provided on the second fan (24) and the first pump (25).

9. The aluminum rim surface coating treatment device according to claim 8, characterized in that: The discharge end of the second fan (24) is fixedly connected to the air inlet pipe (22), the discharge end of the first pump (25) is fixedly connected to the liquid exchange pipe (23), and the coating box (21) is fixedly connected to a liquid discharge pipe (26).

10. A treatment process of the aluminum rim surface coating treatment device as claimed in claim 9, characterized in that: The following steps are involved: Step 1: Place the cutter ring aluminum rim (a) horizontally on the support seat (371), limit the cutter ring aluminum rim (a) in the horizontal direction by using the second roller (374), and install the support seat (371) on the connecting shaft (33); Step 2: The connecting seat (14) is moved horizontally so that the supporting seat (371) is located directly above the plating box (21), and the cutter ring aluminum wheel rim (a) is immersed in the electrolyte solution in the plating box (21) by vertically moving the output shaft of the linear drive 1 (32) downward; Step 3: The connecting shaft (33) is driven to rotate by the rotation of the output shaft of the pulley 1 (35), and the rotation of the connecting shaft (33) drives the cutter ring aluminum wheel rim (a) to rotate synchronously, and the pump 2 (41) is started. The pump 2 (41) extracts the electrolyte solution in the plating box (21) and transports it to the cavity (b) through the nozzle (42) and the spoke hole (c), so that the bubbles in the cavity (b) are discharged; Step 4: driving the connecting shaft (33) to rotate in the opposite direction, so that the connecting shaft (33) and the cutter ring aluminum rim (a) rotate in the opposite direction under the action of inertia, so that the cutter ring aluminum rim (a) and the supporting seat (371) generate relative rotation, so that the cutter ring aluminum rim (a) and the electrolyte solution are fully contacted and reacted.

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