Barrel plating device for surface treatment of automobile fastener and barrel plating process of barrel plating device

Abstract

The barrel plating device comprises a mounting frame and a barrel plating tank, the mounting frame is fixedly mounted over the barrel plating tank, a lifting air cylinder is mounted on the upper portion of the mounting frame, the output end of the lifting air cylinder penetrates through the mounting frame, and a fixing seat is arranged over the barrel plating tank; two groups of side mounting seats are fixedly mounted at the two ends of the fixed seat through connecting rods, two groups of barrel plating barrels are arranged between the two ends of the fixed seat and the two groups of side mounting seats, a liquid inlet cavity is formed in the fixed seat, a rotating wheel is rotatably arranged in the liquid inlet cavity, and a connecting opening is formed in the bottom of the fixed seat and communicates with a liquid inlet channel; a liquid inlet circulating pipeline is correspondingly arranged at the bottom of the barrel plating tank and right below the connecting port; and the liquid inlet circulating pipeline is connected with a circulating pump on the outer side of the barrel plating tank. The electroplating device has the advantages that the electroplating efficiency of the automobile fastener can be effectively improved, and a uniform and fine high-quality coating is obtained.

Description

Technical Field

[0001] The invention relates to the technical field of roll plating of automobile fasteners, and in particular to a roll plating device and a roll plating process thereof for surface treatment of automobile fasteners. Background Art

[0002] The company's automotive metal parts surface treatment mainly involves the following parts: chassis system, processing objects include brake calipers, control arms, steering columns, flanges, etc.; powertrain parts, processing objects include pulleys, baffles, oil pipe joints, etc.; general standard parts, processing products include bolts, nuts and other automotive fasteners, etc.; body parts, processing products include four-door and two-cover hinges, wiring harness brackets, special-shaped stamping parts, etc.

[0003] Automotive fasteners are usually surface treated by roller plating, which effectively increases the corrosion resistance of standard parts and meets the friction coefficient requirements. Existing roller plating devices cannot achieve simultaneous movement between the plating solution and the workpiece, thereby effectively improving the overall roller plating efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a roller plating device and a roller plating process for surface treatment of automobile fasteners, which can effectively improve the electroplating efficiency of automobile fasteners and obtain a uniform and delicate high-quality coating.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A roller plating device for surface treatment of automobile fasteners, characterized in that it comprises a mounting frame and a roller plating tank, the mounting frame is fixedly installed just above the roller plating tank, a lifting cylinder is installed on the upper part of the mounting frame, the output end of the lifting cylinder passes through the mounting frame and a fixing seat is arranged just above the roller plating tank, two groups of side mounting seats are fixedly installed at both ends of the fixing seat through connecting rods, two groups of roller plating cylinders are arranged between the two ends of the fixing seat and the two groups of side mounting seats, the two groups of roller plating cylinders are horizontally rotatably installed between the fixing seat and the side mounting seats, the fixing seat is provided with a liquid inlet cavity, and a rotating shaft is rotatably arranged in the liquid inlet cavity The wheel, the liquid inlet cavity is provided with a liquid inlet channel and a liquid outlet channel on the opposite sides of the rotating wheel, the fixed seat is provided with liquid outlets on both sides connected with the liquid outlet channel, the fixed seat is provided with a connecting port at the bottom connected with the liquid inlet channel, two groups of rotating shafts are symmetrically arranged at both ends of the rotating wheel, the two groups of rotating shafts pass through both ends of the fixed seat and are fixedly connected with the roller plating cylinder, a liquid inlet circulation pipe is correspondingly arranged at the bottom of the roller plating tank just below the connecting port, the liquid inlet circulation pipe is connected with a circulation pump on the outside of the roller plating tank, the inlet of the circulation pump is respectively connected with a plating liquid pipe and a plating liquid circulation pipe, and the plating liquid circulation pipe is connected with the upper part of the roller plating tank.

[0006] Preferably, the two groups of roller plating cylinders are of right prism type, the lower bottom surfaces of the right prisms of the two groups of roller plating cylinders are connected to the fixed seat, the upper bottom surfaces of the roller plating cylinders are provided with openings, and a plurality of leakage holes are provided on the side surfaces and the upper bottom surfaces of the roller plating cylinders, and a plurality of groups of liquid outlets are provided on both sides of the fixed seat, and are arranged in a circular array on the lower bottom surface of the roller plating cylinder.

[0007] Preferably, two groups of rotating bearings are sealed on the outer edges of the upper and lower bottom surfaces of the roller plating cylinder, and the two groups of rotating bearings of each group of the roller plating cylinder are movably mounted in the side mounting seat and the fixed seat respectively. One group of side surfaces of the roller plating cylinder is movably hinged to the rotating bearing near the upper bottom surface, and is openably and closably arranged with the rotating bearing near the lower bottom surface.

[0008] Preferably, the two groups of rotating shafts are connected to the inner walls of both ends of the roller plating cylinder through multiple groups of connecting frames arranged symmetrically around the center, and each group of rotating shafts is movably hinged with a driving cylinder, and the output end of the driving cylinder is movably hinged to the openable and closable side of the roller plating cylinder.

[0009] Preferably, a group of connecting columns are symmetrically and vertically connected to both ends of the side mounting seat, and the tops of the connecting columns movably penetrate the mounting frame and a limited stop block is arranged above the mounting frame.

[0010] Preferably, the liquid inlet circulation pipeline is provided with a diverter seat directly below the connecting port, the side of the diverter seat is provided with an inlet which is connected with the liquid inlet circulation pipeline, the upper and lower parts of the diverter seat are respectively provided with an upper outlet and a lower outlet, the diverter seat is provided with a diverter cylinder which is movably clamped in the upper outlet, a through hole is provided above the diverter cylinder and at the side wall corresponding to the lower outlet, a sealing ring is clamped above the diverter cylinder, the top of the diverter cylinder is sealed and connected with the bottom of the connecting port through the sealing ring, and the through hole above the diverter cylinder is connected with the liquid inlet channel in the connecting port.

[0011] Preferably, a circle of limiting protrusions is arranged on the inner side of the top of the diverter seat, a limiting groove is provided on the outer wall of the diverter tube corresponding to the limiting protrusion, and a return spring is arranged above the limiting protrusion in the limiting groove.

[0012] Preferably, a plurality of groups of blades are distributed in an annular array inside the rotor, and the plurality of groups of blades are arc-shaped steel plates, and the flow directions of the plating solution in the liquid inlet channel and the liquid outlet channel are tangent to the outer sides of the blades.

[0013] A barrel plating process for surface treatment of automotive fasteners, characterized in that it comprises the following steps: The plating solution is first introduced into the barrel plating tank through the plating solution pipeline of the circulation pump through the liquid inlet circulation pipeline, and when the plating solution level is higher than the inlet of the plating solution circulation pipeline, the liquid inlet is stopped, and then the plating solution at the upper part of the barrel plating tank is introduced into the liquid inlet circulation pipeline at the bottom of the barrel plating tank through the plating solution circulation pipeline through the circulation pump, and the plating solution is discharged through the lower outlet of the diverter seat, so as to circulate the plating solution up and down; The roller plating cylinder is raised to the highest stroke by the lifting cylinder, and the roller plating cylinder is rotated to adjust the openable and closable side to the top, and one side of the roller plating cylinder is opened upward by driving two sets of driving cylinders at the same time, so that the automotive fasteners are added into the roller plating cylinders on both sides. After the addition is completed, the two sets of driving cylinders are driven to close one side of the roller plating cylinder; The barrel plating cylinder is lowered into the barrel plating tank by the lifting cylinder. After the connection port at the bottom of the fixed seat contacts the top of the diverter cylinder and the diverter cylinder is pressed down to the lowest stroke, the plating liquid in the plating liquid circulation pipeline passes through the liquid inlet circulation pipeline, and the plating liquid switches to the upper outlet of the diverter seat and enters the fixed seat. It passes through the liquid inlet channel, the rotating wheel in the liquid inlet cavity and the liquid outlet channel in turn, driving the rotating shaft coaxially connected with the rotating wheel, and the barrel plating cylinder rotates synchronously. The plating liquid outside the barrel plating cylinder circulates into the barrel plating cylinder through the liquid outlet connected to the liquid outlet channel; After the roller plating is completed, the roller plating cylinder is raised to the highest stroke by the lifting cylinder, and the roller plating cylinder is rotated to adjust the openable and closable side to the bottom. By driving two sets of driving cylinders at the same time to open one side of the roller plating cylinder downward, the discharging and collection of automotive fasteners after roller plating can be completed.

[0014] In summary, the present invention has the following beneficial effects: The present invention realizes the circulation, renewal and replacement of the plating solution inside and outside the barrel of the roller plating cylinder through a circulation pump, effectively improving the effect and efficiency of the overall roller plating. At the same time, the plating solution entering the barrel of the roller plating cylinder drives the rotating wheel to rotate, thereby driving the rotating shaft and the barrel of the roller plating cylinder to rotate, realizing the tumbling of the internal automobile fasteners, completing the uniform roller plating of the surface of the automobile fasteners, and avoiding the occurrence of uneven roller plating.

[0015] The present invention provides two groups of symmetrically installed right-prism-shaped roller plating cylinders, which cooperate with the side surfaces of the roller plating cylinders that can be opened and closed to facilitate feeding and discharging. At the same time, the liquid outlets on both sides of the fixed seat are close to the lower bottom surface of the roller plating cylinder, which can realize timely replenishment of the plating solution inside the roller plating cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the internal structure of the overall device in the feeding state in the embodiment of the invention; Figure 2 yes Figure 1 The structural diagram at A in the middle; Figure 3 is a schematic diagram of the internal structure of the overall device in the barrel plating state in the embodiment of the invention; Figure 4 yes Figure 3 Schematic diagram of the structure at AA in the middle; Figure 5 yes Figure 3 Schematic diagram of the structure at BB in the middle; Figure 6 yes Figure 3 The structural diagram at C in the middle; Figure 7 It is a schematic diagram of the internal structure of the overall device in the discharging state in the embodiment of the invention; Figure 8 It is a schematic diagram of the external connection structure of the barrel plating cylinder in the embodiment of the invention; Fig. 9 is a side view of the barrel plating cylinder connection structure in an embodiment of the invention; Fig.10 It is a schematic diagram of the internal structure of the fixing seat in the embodiment of the invention. DETAILED DESCRIPTION

[0017] The specific implementation manner of the present invention is further described below in conjunction with the accompanying drawings, and this embodiment does not constitute a limitation of the present invention.

[0018] like Figures 1 to 10 As shown, a barrel plating device for surface treatment of automobile fasteners comprises a mounting frame 1 and a barrel plating tank 2, wherein the mounting frame 1 is fixedly mounted above the barrel plating tank 2, a lifting cylinder 3 is mounted on the upper part of the mounting frame 1, an output end of the lifting cylinder 3 passes through the mounting frame 1 and a fixing seat 4 is arranged above the barrel plating tank 2, two groups of side mounting seats 5 are fixedly mounted at both ends of the fixing seat 4 through a connecting rod 31, two groups of barrel plating cylinders 6 are arranged between the two ends of the fixing seat 4 and the two groups of side mounting seats 5, the two groups of barrel plating cylinders 6 are horizontally rotatably mounted between the fixing seat 4 and the side mounting seats 5, the fixing seat 4 is provided with a liquid inlet cavity 7, a rotating wheel 8 is rotatably arranged in the liquid inlet cavity 7, and the liquid inlet cavity 7 is rotated at the rotation of the rotating wheel 8. A liquid inlet channel 9 and a liquid outlet channel 10 are provided on opposite sides of the wheel 8, liquid outlet ports 11 are provided on both sides of the fixed seat 4 and are connected to the liquid outlet channel 10, a connecting port 12 is provided at the bottom of the fixed seat 4 and is connected to the liquid inlet channel 9, two groups of rotating shafts 13 are symmetrically provided at both ends of the rotating wheel 8, the two groups of rotating shafts 13 pass through both ends of the fixed seat 4 and are fixedly connected to the roller plating cylinder 6, a liquid inlet circulation pipe 14 is correspondingly provided at the bottom of the roller plating tank 2 just below the connecting port 12, the liquid inlet circulation pipe 14 is connected to a circulation pump 15 on the outside of the roller plating tank 2, the inlets of the circulation pump 15 are respectively connected to the plating liquid pipe 16 and the plating liquid circulation pipe 17, and the plating liquid circulation pipe 17 is connected to the upper part of the roller plating tank 2.

[0019] The two groups of roller plating cylinders 6 are of right prism type, and the lower bottom surfaces of the right prisms of the two groups of roller plating cylinders 6 are connected to the fixed seat 4. The upper bottom surface of the roller plating cylinder 6 is provided with an opening, and a plurality of leakage holes 18 are provided on the side and upper bottom surface of the roller plating cylinder 6. There are multiple groups of liquid outlets 11 on both sides of the fixed seat 4, and they are arranged in a circular array in the lower bottom surface of the roller plating cylinder 6. A part of the plating solution enters the roller plating cylinder 6 through the leakage holes 18 to perform surface treatment on automobile fasteners, and another part of the circulating plating solution enters the roller plating cylinder 6 through the liquid outlet 11 for circulation, thereby ensuring the quality of the plating solution in the roller plating cylinder 6.

[0020] Two groups of rotating bearings 19 are sealed on the outer edges of the upper and lower bottom surfaces of the roller plating cylinder 6. The two groups of rotating bearings 19 of each group of roller plating cylinders 6 are movably mounted in the side mounting seat 5 and the fixed seat 4 respectively. One group of side surfaces of the roller plating cylinder 6 is movably hinged with the rotating bearings 19 near the upper bottom surface, and the side surface near the lower bottom surface is openably and closably arranged with the rotating bearings 19. The synchronous rotation of the two groups of roller plating cylinders 6 can be achieved through the rotating shaft 13.

[0021] The two groups of rotating shafts 13 are connected to the inner walls of the two ends of the roller plating cylinder 6 through multiple groups of connecting frames 20 that are symmetrically arranged in the center. A driving cylinder 21 is movably hinged on each group of rotating shafts 13. The output end of the driving cylinder 21 is movably hinged to the openable and closable side of the roller plating cylinder 6. The driving cylinder 21 realizes the opening of the openable and closable side, thereby completing the feeding and discharging of materials.

[0022] A group of connecting columns 22 are symmetrically and vertically connected to both ends of the side mounting seat 5. The top of the connecting column 22 movably passes through the mounting frame 1 and a limited stop block 23 is arranged above the mounting frame 1. The two groups of connecting columns 22 cooperate with the lifting cylinder 3 to drive the overall smooth lifting.

[0023] A diverter seat 24 is provided in the liquid inlet circulation pipeline 14 just below the connecting port 12, and an inlet is provided on the side of the diverter seat 24 which is connected to the liquid inlet circulation pipeline 14. The upper and lower parts of the diverter seat 24 are respectively provided with an upper outlet and a lower outlet. The diverter seat 24 is provided with a diverter cylinder 25 in the upper outlet in an upper and lower movable manner, and a through hole is provided above the diverter cylinder 25 and at the side wall corresponding to the lower outlet. A sealing ring 26 is provided above the diverter cylinder 25, and the top of the diverter cylinder 25 is sealed and connected to the bottom of the connecting port 12 through the sealing ring 26, and the through hole above the diverter cylinder 25 is connected to the liquid inlet channel 9 in the connecting port 12.

[0024] A circle of limiting protrusions 27 are arranged on the inner side of the top of the diverter seat 24, and a limiting groove 28 is arranged on the outer wall of the diverter tube 25 corresponding to the limiting protrusion 27. A return spring 29 is arranged in the limiting groove 28 above the limiting protrusion 27. The return spring 29 can realize that when the connecting port 12 is not pressed, the diverter tube 25 can be returned upward, thereby closing the upper outlet and realizing the connection between the lower outlet and the liquid inlet circulation pipeline 14. When the connecting port 12 presses the diverter tube 25 to the bottom of the diverter seat 24, the lower outlet is closed, thereby realizing the connection between the upper outlet and the liquid inlet circulation pipeline 14.

[0025] There are multiple groups of blades 30 distributed in a circular array inside the wheel 8. The multiple groups of blades 30 are all arc-shaped steel plates. The flow direction of the plating solution in the liquid inlet channel 9 and the liquid outlet channel 10 is tangent to the outer edge of the blade 30. The plating solution can effectively drive the wheel 8 to rotate.

[0026] A barrel plating process for surface treatment of automotive fasteners comprises the following steps: The plating liquid is first introduced into the roller plating tank 2 through the liquid inlet circulation pipe 14 via the plating liquid pipeline 16 of the circulation pump 15. When the plating liquid level is higher than the inlet of the plating liquid circulation pipe 17, the liquid inlet is stopped. Subsequently, the plating liquid in the upper part of the roller plating tank 2 is introduced into the liquid inlet circulation pipe 14 at the bottom of the roller plating tank 2 through the plating liquid circulation pipe 17 via the circulation pump 15, and the plating liquid is discharged through the lower outlet of the diverter seat 24 to circulate the plating liquid up and down.

[0027] The roller plating cylinder 6 is raised to the highest stroke by the lifting cylinder 3, and the roller plating cylinder 6 is rotated to adjust the openable and closable side to the top. The two sets of driving cylinders 21 are driven simultaneously to open one side of the roller plating cylinder 6 upward, so that the automotive fasteners are added to the roller plating cylinders 6 on both sides. After the addition is completed, the two sets of driving cylinders 21 are driven to close one side of the roller plating cylinder 6.

[0028] The roller plating cylinder 6 is lowered into the roller plating tank 2 by the lifting cylinder 3. After the connecting port 12 at the bottom of the fixed seat 4 contacts the top of the diverter cylinder 25 and the diverter cylinder 25 is pressed down to the lowest stroke, the plating liquid in the plating liquid circulation pipe 17 passes through the liquid inlet circulation pipe 14, and the plating liquid switches to the upper outlet of the diverter seat 24 to enter the fixed seat 4, and then passes through the liquid inlet channel 9, the wheel 8 in the liquid inlet cavity 7 and the liquid outlet channel 10 in turn, driving the rotating shaft 13 coaxially connected with the wheel 8, and the roller plating cylinder 6 rotates synchronously, and the plating liquid outside the roller plating cylinder 6 circulates into the roller plating cylinder 6 through the liquid outlet 11 connected to the liquid outlet channel 10.

[0029] After the roller plating is completed, the roller plating cylinder 6 is raised to the highest stroke by the lifting cylinder 3, and the roller plating cylinder 6 is rotated to adjust the openable and closable side to the bottom. By simultaneously driving two sets of driving cylinders 21 to open one side of the roller plating cylinder 6 downward, the discharging and collection of the automotive fasteners after roller plating can be completed.

[0030] The present invention realizes the circulation, renewal and replacement of the plating solution inside and outside the barrel of the roller plating cylinder through a circulation pump, effectively improving the effect and efficiency of the overall roller plating. At the same time, the plating solution entering the barrel of the roller plating cylinder drives the rotating wheel to rotate, thereby driving the rotating shaft and the barrel of the roller plating cylinder to rotate, realizing the tumbling of the internal automobile fasteners, completing the uniform roller plating of the surface of the automobile fasteners, and avoiding the occurrence of uneven roller plating.

[0031] The present invention provides two groups of symmetrically installed right-prism-shaped roller plating cylinders, which cooperate with the side surfaces of the roller plating cylinders that can be opened and closed to facilitate feeding and discharging. At the same time, the liquid outlets on both sides of the fixed seat are close to the lower bottom surface of the roller plating cylinder, which can realize timely replenishment of the plating solution inside the roller plating cylinder.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the technical solution of the present invention.

Claims

1. A barrel plating device for surface treatment of automotive fasteners, characterized in that: The invention comprises a mounting frame and a roller plating tank, wherein the mounting frame is fixedly installed above the roller plating tank, a lifting cylinder is installed on the upper part of the mounting frame, an output end of the lifting cylinder passes through the mounting frame and a fixing seat is arranged above the roller plating tank, two groups of side mounting seats are fixedly installed at both ends of the fixing seat through connecting rods, two groups of roller plating cylinders are arranged between the two ends of the fixing seat and the two groups of side mounting seats, the two groups of roller plating cylinders are horizontally rotatably installed between the fixing seat and the side mounting seats, the fixing seat is provided with a liquid inlet cavity, a rotating wheel is rotatably arranged in the liquid inlet cavity, and the liquid inlet cavity is relative to the rotating wheel Liquid inlet channels and liquid outlet channels are provided on both sides, liquid outlets are provided on both sides of the fixed seat and are connected to the liquid outlet channels, a connecting port is provided at the bottom of the fixed seat and is connected to the liquid inlet channel, two groups of rotating shafts are symmetrically provided at both ends of the rotating wheel, the two groups of rotating shafts pass through both ends of the fixed seat and are fixedly connected to the roller plating cylinder, a liquid inlet circulation pipe is correspondingly provided at the bottom of the roller plating tank just below the connecting port, the liquid inlet circulation pipe is connected to a circulation pump on the outside of the roller plating tank, the inlet of the circulation pump is respectively connected to the plating liquid pipe and the plating liquid circulation pipe, and the plating liquid circulation pipe is connected to the upper part of the roller plating tank.

2. A barrel plating device for surface treatment of automotive fasteners according to claim 1, characterized in that: The two groups of roller plating cylinders are of right prism type, and the lower bottom surfaces of the right prisms of the two groups of roller plating cylinders are connected to the fixed seat. The upper bottom surface of the roller plating cylinder is provided with an opening, and a plurality of leakage holes are provided on the side and upper bottom surface of the roller plating cylinder. There are multiple groups of liquid outlets on both sides of the fixed seat, and they are arranged in a circular array on the lower bottom surface of the roller plating cylinder.

3. A barrel plating device for surface treatment of automotive fasteners according to claim 2, characterized in that: Two sets of rotating bearings are sealed on the outer edges of the upper and lower bottom surfaces of the roller plating cylinder. The two sets of rotating bearings of each set of the roller plating cylinder are movably mounted in the side mounting seat and the fixed seat respectively. One set of side surfaces of the roller plating cylinder is movably hinged to the rotating bearing near the upper bottom surface, and is openably and closably arranged with the rotating bearing near the lower bottom surface.

4. A barrel plating device for surface treatment of automotive fasteners according to claim 3, characterized in that: The two groups of rotating shafts are connected to the inner walls of the roller plating cylinder at both ends through multiple groups of connecting frames arranged symmetrically around the center. A driving cylinder is movably hinged on each group of rotating shafts, and the output end of the driving cylinder is movably hinged to the openable and closable side of the roller plating cylinder.

5. The barrel plating device for surface treatment of automotive fasteners according to claim 1, characterized in that: A group of connecting columns are symmetrically and vertically connected to both ends of the side mounting seat. The top of the connecting column movably passes through the mounting frame and a limited stop block is arranged above the mounting frame.

6. The barrel plating device for surface treatment of automotive fasteners according to claim 1, characterized in that: The liquid inlet circulation pipeline is provided with a diverter seat directly below the connecting port, the side of the diverter seat is provided with an inlet which is connected with the liquid inlet circulation pipeline, the upper and lower parts of the diverter seat are respectively provided with an upper outlet and a lower outlet, the diverter seat is provided with a diverter cylinder which can be movably clamped in the upper outlet, through holes are provided above the diverter cylinder and at the side wall corresponding to the lower outlet, a sealing ring is clamped above the diverter cylinder, the top of the diverter cylinder is sealed and connected with the bottom of the connecting port through the sealing ring, and the through hole above the diverter cylinder is connected with the liquid inlet channel in the connecting port.

7. The barrel plating device for surface treatment of automobile fasteners according to claim 6, characterized in that: A circle of limiting protrusions is arranged on the inner side of the top of the diverter seat, and a limiting groove is arranged on the outer wall of the diverter tube corresponding to the limiting protrusion, and a return spring is arranged above the limiting protrusion in the limiting groove.

8. The barrel plating device for surface treatment of automotive fasteners according to claim 1, characterized in that: A plurality of blades are distributed in an annular array inside the rotating wheel, and the plurality of blades are arc-shaped steel plates. The flow directions of the plating solution in the liquid inlet channel and the liquid outlet channel are tangent to the outer sides of the blades.

9. A barrel plating process for surface treatment of automotive fasteners, characterized in that: The steps include: The plating solution is first introduced into the barrel plating tank through the plating solution pipeline of the circulation pump through the liquid inlet circulation pipeline, and when the plating solution level is higher than the inlet of the plating solution circulation pipeline, the liquid inlet is stopped, and then the plating solution at the upper part of the barrel plating tank is introduced into the liquid inlet circulation pipeline at the bottom of the barrel plating tank through the plating solution circulation pipeline through the circulation pump, and the plating solution is discharged through the lower outlet of the diverter seat, so as to circulate the plating solution up and down; The roller plating cylinder is raised to the highest stroke by the lifting cylinder, and the roller plating cylinder is rotated to adjust the openable and closable side to the top, and one side of the roller plating cylinder is opened upward by driving two sets of driving cylinders at the same time, so that the automotive fasteners are added into the roller plating cylinders on both sides. After the addition is completed, the two sets of driving cylinders are driven to close one side of the roller plating cylinder; The barrel plating cylinder is lowered into the barrel plating tank by the lifting cylinder. After the connection port at the bottom of the fixed seat contacts the top of the diverter cylinder and the diverter cylinder is pressed down to the lowest stroke, the plating liquid in the plating liquid circulation pipeline passes through the liquid inlet circulation pipeline, and the plating liquid switches to the upper outlet of the diverter seat and enters the fixed seat. It passes through the liquid inlet channel, the rotating wheel in the liquid inlet cavity and the liquid outlet channel in turn, driving the rotating shaft coaxially connected with the rotating wheel, and the barrel plating cylinder rotates synchronously. The plating liquid outside the barrel plating cylinder circulates into the barrel plating cylinder through the liquid outlet connected to the liquid outlet channel; After the roller plating is completed, the roller plating cylinder is raised to the highest stroke by the lifting cylinder, and the roller plating cylinder is rotated to adjust the openable and closable side to the bottom. By driving two sets of driving cylinders at the same time to open one side of the roller plating cylinder downward, the discharging and collection of automotive fasteners after roller plating can be completed.

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