Barrel plating device for continuous electroplating and use method of barrel plating device

Abstract

The invention discloses a barrel plating device for continuous electroplating and a using method thereof, and belongs to the technical field of hydrogen production and electroplating. The barrel plating device comprises an unwinding system, a collecting unit, a drying system, a pretreatment unit, an electroplating unit and a cleaning unit; the unwinding system is located at the head of the device. The collecting unit is located at the tail of the device; the pretreatment unit, the electroplating unit and the cleaning unit are sequentially arranged between the unwinding system and the winding system; the electroplating unit comprises an electroplating bath and an electroplating roller; the electroplating roller is a roller with a regular polygonal cross section; the electroplating roller does lifting motion in the vertical direction under the action of the telescopic device; the electroplating roller rotates around the axis of the electroplating roller; and the electroplating roller descends to immerse the electroplated part at the corresponding position into the electroplating bath, so that segmented electroplating is realized. According to the invention, segmented electroplating of a plating piece is realized through the barrel plating device, so that the current density of the aqueduct and the size of the aqueduct are reduced, and as the current and voltage used for electroplating are obviously reduced, the electroplating process is safer, and the obtained plating layer is more uniform.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrogen production and electroplating, and particularly relates to a roller plating device for continuous electroplating and a use method thereof. Background Art

[0002] With the discovery of hydrogen energy, the scale of hydrogen production equipment is getting larger and larger. The 1000m 3 , 2000m 3 The width of the electrolyzer of hydrogen production equipment has exceeded 2m, and the size of electrolyzer components is getting bigger and bigger. Electrode is one of the core components of the electrolyzer, 1000m 3 The width of the electrolytic cell electrode (the width of the electrode) is also greater than 1.8m. Electroplating is a common means of industrial electrode production. The fine structure of the electroplating electrode can realize the preparation of micron or even nanometer-level materials. With the increase of the width, the area of ​​the plated part increases, and the difficulty of industrial production of electroplating electrodes and mold processing increases. Specifically: Due to the increase in the area of ​​the plated part, the current, voltage and plating tank volume in the electroplating process also increase exponentially, thereby increasing the heat generation in the electroplating process, which not only causes energy waste, but also makes the electroplating device very prone to short circuits, which in turn leads to safety accidents such as burn-through of the plated part. At the same time, electroplating of large-area plated parts is prone to boundary effects, resulting in uneven electroplating. Summary of the invention

[0003] In view of this, the present invention provides a roller plating device for continuous electroplating and a method of using the same. The roller plating device is used to achieve segmented electroplating of the plated parts, thereby reducing the current density and size of the aqueduct. Since the current and voltage used for electroplating are significantly reduced, the electroplating process is safer and the resulting coating is more uniform.

[0004] The present invention is achieved through the following technical solutions:

[0005] A roller plating device for continuous electroplating, comprising: an unwinding system, a collecting unit, a drying system, a pretreatment unit, an electroplating unit and a cleaning unit;

[0006] The unwinding system is located at the head of the device and is used to wind up the plated parts that have not been electroplated;

[0007] The collecting unit is located at the rear of the device and is used to collect the plated parts after electroplating;

[0008] The pretreatment unit, the electroplating unit and the cleaning unit are arranged in sequence between the unwinding system and the winding system;

[0009] The electroplating unit comprises: an electroplating tank and an electroplating drum;

[0010] The electroplating drum is a drum with a regular polygonal cross section; the electroplating drum can move up and down in the vertical direction under the action of the telescopic device; the electroplating drum can rotate around its own axis; when the electroplating drum descends, the plated parts at the corresponding positions are immersed in the electroplating tank to achieve segmented electroplating of the plated parts;

[0011] The drying system is arranged between the collecting unit and the cleaning unit;

[0012] The free end of the plated component mounted on the unwinding system passes through the pretreatment unit, bypasses the electroplating drum, passes through the cleaning unit and the drying system in sequence, and is finally collected by the collecting unit.

[0013] Furthermore, an anode electrode is provided on the inner bottom surface of the electroplating tank;

[0014] The electroplating tank is filled with an electroplating solution;

[0015] The anode electrode is electrically connected to the positive pole of an external power source, and the plated part is electrically connected to the cathode of the power source.

[0016] Furthermore, the electroplating tank is also provided with a plurality of stirrers and a plurality of heaters;

[0017] A replenishing pipe is provided at the bottom of the electroplating tank, which is connected to the electroplating liquid replenishing system through the replenishing pipe.

[0018] Furthermore, the area of ​​the anode electrode is greater than or equal to the area of ​​each surface of the electroplating drum.

[0019] Furthermore, the electroplating drum is driven to rotate by a driving device b;

[0020] The rotation speed of the unwinding system and the collection speed of the collection unit are consistent with the rotation speed of the electroplating drum.

[0021] Further, the pretreatment unit comprises: a pretreatment tank and a pretreatment drum;

[0022] The pretreatment tank is provided with a plurality of agitators and a plurality of heaters;

[0023] The pretreatment tank is filled with a pretreatment liquid;

[0024] A liquid replenishment pipeline is provided at the bottom of the pretreatment tank, which is connected to the pretreatment liquid replenishment system through the liquid replenishment pipeline;

[0025] The pretreatment drum is a circular drum, which is supported on the ceiling or the bracket by a telescopic device, and performs lifting and lowering movement in the vertical direction under the action of the telescopic device;

[0026] When the pretreatment drum descends, the plated parts located at the bottom thereof are immersed in the pretreatment tank.

[0027] Further, the cleaning unit comprises: a cleaning tank and a cleaning drum;

[0028] The cleaning tank is provided with a plurality of agitators and a plurality of heaters;

[0029] The cleaning tank is filled with cleaning liquid, and a liquid replenishing pipe is provided at the bottom of the cleaning tank, which is connected to the cleaning liquid replenishing system through the liquid replenishing pipe;

[0030] The cleaning drum is a circular drum, which is supported on a ceiling or a bracket by a telescopic device, and performs lifting and lowering motion in a vertical direction under the action of the telescopic device;

[0031] When the cleaning drum descends, the plated parts located at the bottom are immersed in the cleaning tank.

[0032] Furthermore, it also includes: a plurality of fixed pulleys;

[0033] A fixed pulley is provided between the unwinding system and the pretreatment unit, between the pretreatment unit and the electroplating drum, and between the electroplating drum and the cleaning unit;

[0034] The free end of the plated part mounted on the unwinding system passes through the fixed pulley, the pretreatment unit, the fixed pulley, the electroplating drum, the fixed pulley, the cleaning unit, the fixed pulley, the drying system in sequence, and is finally collected by the collecting unit.

[0035] Furthermore, the collecting unit adopts a winding system or a cutting device.

[0036] A method for using a roller plating device for continuous electroplating, based on the above-mentioned roller plating device, the method comprises the following steps:

[0037] Step 1: Prepare and start the barrel plating device;

[0038] The plated parts are unwound through the unwinding system;

[0039] Step 2: Pretreatment of plated parts;

[0040] The released plated parts enter the pretreatment unit for pretreatment;

[0041] Step 3: electroplating the plated parts in sections;

[0042] After the pretreatment, the plated parts go around from the bottom of the electroplating drum; the electroplating drum descends, and the plated parts under the electroplating drum are immersed in the electroplating tank for segmented electroplating;

[0043] Step 4: Cleaning of plated parts;

[0044] After electroplating, the plated parts enter the cleaning unit for cleaning;

[0045] Step 5: Drying and collecting the plated parts;

[0046] After cleaning, the plated parts enter the drying system for drying;

[0047] Step 6: Collect the plated parts after electroplating;

[0048] After drying, the plated parts are collected by a collecting unit.

[0049] Beneficial effects:

[0050] (1) A roller plating device for continuous electroplating of the present invention, wherein the unwinding system is located at the head of the device, the collecting unit is located at the tail of the device, the pretreatment unit, the electroplating unit and the cleaning unit are arranged longitudinally in sequence between the unwinding system and the collecting unit, the cross section of the electroplating roller of the electroplating unit is a regular polygon structure, and the electroplating roller is rotated and pressed down to electroplate the workpiece in sections, which can reduce the size of the electroplating tank and the current density, thereby reducing the current and voltage required for electroplating, and reducing the heat generated during the electroplating process, thereby effectively reducing the safety hazards such as short circuit of the device and burn-through of the plated workpiece in the previous electroplating process, while reducing the heat generation consumption, and realizing continuous production in a small electrical density and smaller plating tank device; at the same time, by adjusting the number of sides of the regular polygon (i.e., the number of faces of the electroplating roller) and the size, the area of ​​each section of the plated workpiece can be reduced, thereby improving the electroplating uniformity of the surface of the plated workpiece and reducing the edge effect; the telescopic device B is used to control the electroplating parameters; therefore, the device operates stably, and the current and voltage used for electroplating are significantly reduced compared with commonly used electroplating devices, the process is safer, and the obtained coating is more uniform, which greatly reduces the boundary effect during the electroplating process.

[0051] (2) The present invention is a roller plating device for continuous electroplating, wherein a plurality of agitators are provided in the electroplating tank, which can stir the electroplating liquid in the electroplating tank evenly; a plurality of heaters are provided in the electroplating tank, which can adjust the temperature in the electroplating tank to the electroplating temperature; the electroplating tank is connected to the electroplating liquid replenishing system through a replenishing pipe, which can replenish the electroplating liquid in the electroplating tank in time, and is conducive to the continuous production of electroplated parts.

[0052] (3) In a roller plating device for continuous electroplating of the present invention, the area of ​​the anode electrode is greater than or equal to the area of ​​each surface of the electroplating roller, so that the surface of each section of the plated piece is evenly plated.

[0053] (4) In a roller plating device for continuous electroplating according to the present invention, the plating roller is driven to rotate by a driving device b. The speed of the plating roller is controlled by adjusting the speed of the driving device b, so that electroplating layers with different morphologies and qualities can be obtained on the same plated workpiece. The speed of the unwinding system and the collecting speed of the collecting unit are consistent with the speed of the plating roller, so as to avoid the loosening of the collecting unit and the plated workpiece in the unwinding system, which would affect the electroplating effect.

[0054] (5) In a roller plating device for continuous electroplating according to the present invention, a fixed pulley is provided between the unwinding system and the pretreatment unit, between the pretreatment unit and the electroplating roller, and between the electroplating roller and the cleaning unit. The fixed pulley is used to change the moving direction of the plated workpiece, so that the plated workpiece and the electroplating roller are more closely fitted, thereby further improving the electroplating effect. At the same time, it can prevent the plated workpiece from contacting the edge of the tank body, thereby preventing the plated workpiece from being damaged.

[0055] (6) In a roller plating device for continuous electroplating of the present invention, a collection unit adopts a winding system or a cutting device. When there is no fixed size requirement, the plated parts are rolled up by the winding system to facilitate subsequent cutting. When there is a fixed size requirement, the cutting device can be used to cut them into the required size, or to collect plated parts that are not suitable for winding.

[0056] (7) The present invention provides a method for using a roller plating device for continuous electroplating. In step three, the plated part is immersed in the electroplating tank by the lowering of the electroplating roller, thereby realizing segmented electroplating, reducing safety hazards and improving the electroplating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a structural composition diagram of the barrel plating device of the present invention;

[0058] Among them, 1-rotating shaft A, 2-unwinding system, 3-fixed pulley, 301-pulley a, 302-pulley b, 303-pulley c, 304-pulley d, 4-support frame, 5-telescopic device, 6-pretreatment roller, 7-electroplating roller, 8-cleaning roller, 9-rotating shaft B, 10-pretreatment tank, 11-electroplating tank, 12-cleaning tank, 13-drying system, 14-liquid replenishing pipeline, 15-agitator, 16-heater, 17-power supply, 18-rewinding system, 19-plated parts. DETAILED DESCRIPTION

[0059] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0060] Embodiment 1:

[0061] This embodiment provides a roller plating device for continuous electroplating, such as Figure 1 As shown, it includes: a drying system 13, an unwinding system 2, a collecting unit, three troughs, rollers corresponding to the troughs one by one, a plurality of support frames 4, a plurality of telescopic devices 5 and a plurality of fixed pulleys 3.

[0062] The unwinding system 2 and the collecting unit are respectively located at the head and the tail of the roller plating device.

[0063] The unwinding system 2 is located at the head of the device and is used to wind the plated workpiece 19 to be electroplated. The unwinding system 2 includes: a rotating shaft A1, a support frame 4 and a driving device a. The rotating shaft A1 is supported on a ceiling or a bracket through the support frame 4. The driving device a is used to drive the rotating shaft A1 of the unwinding system 2 to rotate and release the plated workpiece 19 wound on the unwinding system 2.

[0064] In this embodiment, the collection unit is a winding system 18. The winding system 18 is located at the rear of the device and is used to wind up the plated parts 19 after electroplating. The structure of the winding system 18 is the same as that of the unwinding system 2, including: a rotating shaft A1, a support frame 4 and a driving device a. The rotating shaft A1 is supported on the ceiling or the bracket through the support frame 4. The driving device a in the winding system 18 is used to drive the rotating shaft A1 in the winding system 18 to rotate.

[0065] As an example, the support frame 4 adopts a tensioner, and the height of the unwinding system 2 or the winding system 18 wrapped with the plated part 19 is changed through the telescopic movement of the tensioner A4.

[0066] The three tanks are arranged longitudinally (along the head-to-tail direction) between the unwinding system 2 and the winding system 18. The inner bottom surface of each tank is provided with a plurality of stirrers 15; the inner wall surface of the tank is provided with a plurality of heaters 16. The bottom of each tank is provided with a liquid replenishing pipe 14, and the internal space of each tank is connected with the corresponding liquid replenishing system through the liquid replenishing pipe 14. As an example, the stirrer 15, the heater 16 and the liquid replenishing system can be controlled by a control system.

[0067] The three tanks are respectively a pretreatment tank 10 , an electroplating tank 11 and a cleaning tank 12 from the head to the tail.

[0068] The pretreatment tank 10 is filled with a pretreatment liquid for degreasing and pickling the plated parts 19; the pretreatment liquid is stirred evenly by the stirrer 15, heated to a set pretreatment temperature by the heater 16, and replenished by the pretreatment liquid replenishing system.

[0069] The electroplating tank 11 is filled with electroplating liquid for electroplating the plated object 19. The inner bottom surface of the electroplating tank 11 is provided with an anode electrode, which is electrically connected to the positive pole of the external power supply 17; the negative pole of the power supply 17 is electrically connected to the plated object 19. When the plated object 19 is immersed in the electroplating liquid, a closed circuit is formed between the anode and the cathode to achieve electroplating. The electroplating liquid is stirred evenly by the stirrer 15, heated to the set electroplating temperature by the heater 16, and replenished by the electroplating liquid replenishing system.

[0070] The cleaning tank 12 is filled with cleaning liquid for cleaning the surface of the plated part 19 and removing impurities in the plating liquid on the surface of the plated part 19. The cleaning liquid is stirred evenly by the agitator 15, heated to the set cleaning temperature by the heater 16, and replenished by the cleaning liquid replenishing system.

[0071] A roller system is provided directly above the pretreatment tank 10, the electroplating tank 11 and the cleaning tank 12, which is used to press the plated part 19 into the corresponding tank body. The roller system includes: a roller, a rotating shaft B9 and a telescopic device 5. The rotating shaft B9 is supported on the ceiling or the bracket through the telescopic device 5, and the roller is raised and lowered by the telescopic movement of the telescopic device 5. In this embodiment, the telescopic device 5 is preferably a tensioner. The roller is coaxially mounted on the rotating shaft B9, and the rotating shaft B9 drives the roller to rotate when it rotates. The telescopic device 5 extends downward, and when the roller moves downward, the plated part 19 is immersed in the corresponding liquid (i.e., the pretreatment liquid, the electroplating liquid or the cleaning liquid), and is also used to control the electroplating parameters such as the distance between the anode and cathode; the plated part 19 is transferred to the tail of the device by the roller rotating around the rotating shaft B9.

[0072] The roller (hereinafter referred to as the electroplating roller 7) located above the electroplating tank 11 is a roller with a regular polygonal cross section. As the electroplating roller 7 rotates, each surface of the roller descends in turn, and a section of the plated part 19 in contact with the surface is immersed in the electroplating tank for electroplating; when the electroplating of the surface is completed, the electroplating roller 7 rotates 360 / n degrees (n is the number of sides of the regular polygon) to electroplate the next section of the plated part 19, thereby realizing the segmented electroplating of the plated part 19. The number of sides n of the regular polygon of the electroplating roller 7 is adjusted according to the requirements of the electroplated product. The more sides there are, the smaller the size of each electroplated surface, the smaller the edge effect, and the more uniform the electroplating on the surface of the finished plated part.

[0073] The electroplating drum 7 is driven to rotate by the driving device b. By adjusting the rotation speed of the electroplating drum 7 by the driving device b, the time for the corresponding plated part 19 to be immersed in the electroplating solution is changed, so that electroplating layers of different morphologies and qualities (rough or tight electroplating layers, etc.) can be obtained on the same plated part 19. When the plated part 19 is immersed in the electroplating solution, the contact between the electroplating solution and the rest of the plated part 19 is reduced as much as possible. The driving device b serves as the rotating body, and the rotation speeds of the driving devices a of the unwinding system 2 and the driving device a of the winding system 18 are consistent with the rotation speed of the driving device b (the moving length of the plated part is consistent), so as to avoid the plated part 19 in the winding system and the unwinding system from being loosened. The area of ​​the anode electrode is greater than or equal to the area of ​​one surface of the electroplating drum 7, so that the surface of each section of the plated part 19 is evenly plated.

[0074] As an example, the drums located above the pretreatment tank 10 and the cleaning tank 12 are circular drums, and the two drums are the pretreatment drum 6 and the cleaning drum 8 respectively.

[0075] As an example, the pretreatment drum 6 and the cleaning drum 8 are respectively provided with a driving device c for driving the rotation of the pretreatment drum 6 and the cleaning drum 8 so that the plated parts 19 are transferred smoothly.

[0076] The pretreatment tank 10, the pretreatment drum 6, the corresponding rotating shaft B9 and the telescopic device 5 together constitute a pretreatment unit.

[0077] The electroplating tank 11, the electroplating drum 7, the corresponding rotating shaft B9 and the telescopic device 5 together constitute an electroplating unit.

[0078] The cleaning tank 12, the cleaning drum 8, the corresponding rotating shaft B9 and the telescopic device 5 together constitute a pre-treatment unit.

[0079] The drying system 13 is disposed between the cleaning tank 12 and the winding system 18 and is used for drying the plated parts 19 after the electroplating is completed.

[0080] A fixed pulley 3 is provided between the unwinding system 2 and the pretreatment drum 6, between the pretreatment drum 6 and the electroplating drum 7, between the electroplating drum 7 and the cleaning drum 8, and between the cleaning drum 8 and the drying system 13. The fixed pulley 3 is used to change the moving direction of the plated piece 19, and the fixed pulley 3 is supported on the ceiling or the bracket through the support frame 4. The fixed pulleys 3 are pulley a301, pulley b302, pulley c303, and pulley d304. The plated piece 19 is stretched to both sides by the fixed pulleys 3 located on both sides of the drum, that is, Figure 1 As shown, the plated piece 19 is completely attached to the surface below the pretreatment drum 6 through pulley a301 and pulley b302, the plated piece 19 is completely attached to the surface below the electroplating drum 7 through pulley b302 and pulley c303, and the plated piece is completely attached to the surface below the cleaning drum 8 through pulley c303 and pulley d304, so that the corresponding plated piece 19 can be evenly contacted with the pretreatment liquid, electroplating liquid and cleaning liquid, thereby improving the electroplating effect. In this embodiment, the support frame 4 is preferably a tensioner, and the height of the fixed pulley 3 is adjusted through the telescopic movement of the tensioner, and it is used in conjunction with different electroplating drums 7. At the same time, it can prevent the plated piece 19 from contacting the edge of the tank body.

[0081] As an example, when the plated parts 19 after electroplating have a fixed size requirement, a cutting device is used as a collection unit to directly cut the plated parts 19 after electroplating into rectangular finished products, which are then stacked and sorted. The cutting device is also suitable for collecting plated parts 19 that are not suitable for winding or bending.

[0082] The cutting speed of the cutting device is consistent with the rotation speed of the drum.

[0083] The free end of the plated component 19 mounted on the unwinding system 2 passes through pulley a301, pretreatment drum 6, pulley b302, electroplating drum 7, pulley c303, cleaning drum 8, pulley d304, drying system 13 in sequence, and is finally wound on the winding system 18.

[0084] The plated member 19 used in this embodiment is a nickel mesh.

[0085] Embodiment 2:

[0086] This embodiment provides a method for using a barrel plating device for continuous electroplating. The method is based on the barrel plating device in Embodiment 1 and includes the following steps:

[0087] Step 1: Prepare and start the barrel plating device

[0088] Add corresponding solutions into the pretreatment tank 10 , the plating tank and the cleaning tank 12 , and turn on the control system, the agitator 15 , the heater 16 and the drying system 13 .

[0089] One end of the plated component 19 is wound on the unwinding system 2 , and the other end is disposed in the collecting unit, and is unwound under the drive of the rotating shaft A1 in the unwinding system 2 .

[0090] Step 2: Pre-treatment of plated parts: degreasing and pickling of plated parts

[0091] The released plated workpiece 19 passes around the pulley a301 and then passes under the pretreatment drum 6. The pretreatment drum 6 rotates through the corresponding rotating shaft B9 and descends through the corresponding telescopic device 5, and the plated workpiece 19 under the pretreatment drum 6 is immersed in the pretreatment liquid in the pretreatment tank 10 to pretreat the plated workpiece 19.

[0092] Step 3: Segmented electroplating of plated parts

[0093] After the pretreatment, the plated workpiece 19 passes around the pulley b302 and passes under the electroplating drum 7. The electroplating drum 7 rotates through the corresponding rotating shaft B9 and descends through the corresponding telescopic device 5, so that the pretreated plated workpiece 19 is immersed in the electroplating solution in the electroplating tank 11 to electroplate the plated workpiece 19.

[0094] As the plating drum 7 rotates, each surface of the plating drum 7 descends in turn, and a section of the plated component 19 in contact with the bottom surface is immersed in the plating tank 11 for electroplating; when the electroplating of this surface is completed, the plating drum 7 rotates 360 / n degrees (n is the number of sides of the regular polygon of the plating drum 7) to electroplate the next section of the plated component 19, thereby realizing segmented electroplating.

[0095] The electroplating drum 7 serves as a rotating body, and the rotation speed of the winding system and the collecting speed of the collecting unit (ie, the moving length of the plated component 19 ) are consistent with the rotation speed of the electroplating drum 7 .

[0096] Step 4: Cleaning of plated parts

[0097] After the electroplating, the plated workpiece 19 passes around the pulley c303 and passes under the cleaning drum 8. The cleaning drum 8 rotates through the corresponding rotating shaft B9 and is lifted up and down through the corresponding telescopic device 5, so that the plated workpiece 19 after the electroplating is immersed in the cleaning liquid in the cleaning tank 12 to clean the surface of the plated workpiece 19.

[0098] Step 5: Drying and collection of plated parts

[0099] After cleaning, the plated component 19 passes around the pulley d304 and enters the drying system 13 under the winding action of the winding system 18.

[0100] Step 6: Collect the electroplated parts

[0101] After drying, the plated parts are collected by a collecting unit.

[0102] The plated component 19 is a splicable structure, which is located after the electroplating unit. The part that cannot be electroplated is cut and spliced ​​with other plated components (by weaving or welding, etc.) before being electroplated.

[0103] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A barrel plating device for continuous electroplating, characterized in that: include: An unwinding system (2), a collecting unit, a drying system (13), a pretreatment unit, an electroplating unit and a cleaning unit; The unwinding system (2) is located at the head of the device and is used to wind up the plated parts (19) that have not been electroplated; The collecting unit is located at the rear of the device and is used to collect the plated parts (19) that have completed electroplating; The pretreatment unit, the electroplating unit and the cleaning unit are sequentially arranged between the unwinding system (2) and the winding system (18); The electroplating unit comprises: an electroplating tank (11) and an electroplating roller (7); The electroplating drum (7) is a drum with a regular polygonal cross section; the electroplating drum (7) can move up and down in a vertical direction under the action of the telescopic device (5); the electroplating drum (7) can rotate around its own axis; when the electroplating drum (7) descends, the plated parts (19) at corresponding positions are immersed in the electroplating tank (11), thereby realizing segmented electroplating of the plated parts (19); The drying system is arranged between the collecting unit and the cleaning unit; The free end of the plated component (19) mounted on the unwinding system (2) passes through a pretreatment unit, bypasses an electroplating drum (7), passes through a cleaning unit and a drying system (13) in sequence, and is finally collected by a collecting unit.

2. A barrel plating device for continuous electroplating as claimed in claim 1, characterized in that: The inner bottom surface of the electroplating tank (11) is provided with an anode electrode; The electroplating tank (11) contains an electroplating solution; The anode electrode is electrically connected to the positive pole of an external power source (17), and the plated object (19) is electrically connected to the cathode of the power source (17).

3. A barrel plating device for continuous electroplating as claimed in claim 2, characterized in that: The electroplating tank (11) is also provided with a plurality of stirrers (15) and a plurality of heaters (16); A liquid replenishment pipe (14) is provided at the bottom of the electroplating tank (11), and is connected to the electroplating liquid replenishment system through the liquid replenishment pipe (14).

4. A barrel plating device for continuous electroplating as claimed in claim 2, characterized in that: The area of ​​the anode electrode is greater than or equal to the area of ​​each surface of the electroplating drum (7).

5. A roller plating device for continuous electroplating as claimed in claim 1, characterized in that: The electroplating drum (7) is driven to rotate by a driving device b; The rotation speed of the unwinding system and the collection speed of the collection unit are consistent with the rotation speed of the electroplating drum (7).

6. A barrel plating device for continuous electroplating as claimed in claim 1, characterized in that: The pretreatment unit comprises: a pretreatment tank (10) and a pretreatment drum (6); The pretreatment tank (10) is provided with a plurality of stirrers (15) and a plurality of heaters (16); The pretreatment tank (10) is filled with a pretreatment liquid; A liquid replenishment pipeline (14) is provided at the bottom of the pretreatment tank (10), and is connected to the pretreatment liquid replenishment system through the liquid replenishment pipeline (14); The pretreatment drum (6) is a circular drum, which is supported on a ceiling or a bracket by a telescopic device (5) and performs lifting movement in a vertical direction under the action of the telescopic device (5); When the pretreatment drum (6) descends, the plated parts (19) located at the bottom thereof are immersed in the pretreatment tank (10).

7. A barrel plating device for continuous electroplating as claimed in claim 1, characterized in that: The cleaning unit comprises: a cleaning tank (12) and a cleaning roller (8); The cleaning tank (12) is provided with a plurality of stirrers (15) and a plurality of heaters (16); The cleaning tank is filled with cleaning liquid, and a liquid replenishing pipe (14) is provided at the bottom of the cleaning tank (12), which is connected to the cleaning liquid replenishing system through the liquid replenishing pipe (14); The cleaning drum (8) is a circular drum, supported on a ceiling or a bracket by a telescopic device (5), and performs lifting movement in a vertical direction under the action of the telescopic device (5); When the cleaning drum (8) descends, the plated parts (19) located at the bottom thereof are immersed in the cleaning tank (12).

8. A roller plating device for continuous electroplating as claimed in any one of claims 1 to 7, characterized in that: Also includes: A plurality of fixed pulleys (3); A fixed pulley is provided between the unwinding system (2) and the pretreatment unit, between the pretreatment unit and the electroplating drum (7), and between the electroplating drum (7) and the cleaning unit; The free end of the plated part (19) mounted on the unwinding system (2) passes through the fixed pulley (3), the pretreatment unit, the fixed pulley (3), the electroplating roller (7), the fixed pulley (3), the cleaning unit, the fixed pulley (3), the drying system (13) in sequence, and is finally collected by the collecting unit.

9. A roller plating device for continuous electroplating as claimed in any one of claims 1 to 7, characterized in that: The collecting unit adopts a winding system (18) or a cutting device.

10. A method for using a roller plating device for continuous electroplating, based on the roller plating device in claims 1-9, the method comprising the following steps: Step 1: Prepare and start the barrel plating device; The plated part (19) is unwound through an unwinding system (2); Step 2: Pretreatment of plated parts; The discharged plated parts (19) enter the pretreatment unit for pretreatment; Step 3: electroplating the plated parts in sections; The plated part (19) after the pretreatment is completed passes around the bottom of the electroplating drum (7); the electroplating drum (7) descends, and the plated part (19) located below the electroplating drum (7) is immersed in the electroplating tank (11) for segmented electroplating; Step 4: Cleaning of plated parts; After the electroplating is completed, the plated parts (19) enter the cleaning unit for cleaning; Step 5: Drying and collecting the plated parts; After cleaning, the plated parts (19) enter the drying system (13) for drying; Step 6: Collect the plated parts after electroplating; After drying, the plated parts are collected by a collecting unit.

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