Barrel plating device for continuous electroplating

Abstract

The utility model discloses a barrel plating device for continuous electroplating, which belongs to the technical field of hydrogen production and electroplating and 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 utility model, segmented electroplating of a plating piece is realized through the barrel plating device, so that the current density and the size of the aqueduct are reduced, and as the current and the voltage for electroplating are obviously reduced, the electroplating process is safer, and the obtained plating layer is more uniform.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydrogen production and electroplating technical field, concretely relates to a kind of for continuous electroplating's barrel plating device. BACKGROUND

[0002] With the discovery of hydrogen energy, hydrogen production equipment scale is larger and larger, 1000m 3 , 2000m 3 Hydrogen production equipment electrolytic cell width (electrolytic cell width) has exceeded 2m, electrolytic cell component size is also larger and larger.Electrode as one of the core components in electrolytic cell, 1000m 3 Electrolytic cell electrode width (electrode width) is also greater than 1.8m.Electroplating as common industrialized electrode production means, electroplated electrode structure is fine and can realize micron even nanometer material preparation, with width promotion, plating piece area increases, electroplated electrode industrial production, mold processing etc.difficulty increases.Specifically, due to the area of plating piece increases, the current, voltage and plating bath volume in the electroplating process are also multiplied, thereby increasing the heat production in the electroplating process, not only causing energy waste, but also causing electroplating device to be prone to short circuit, and further leading to plating piece burning and other safety accidents.Meanwhile, it is easy to cause boundary effect for large-area plating piece to be electroplated, to cause uneven electroplating. UTILITARY MODEL CONTENT

[0003] Therefore, the utility model provides a kind of for continuous electroplating's barrel plating device, the segmented electroplating of plating piece is realized by barrel plating device, to reduce the current density of aqueduct and the size of aqueduct, since the current and voltage used in electroplating are significantly reduced, so that electroplating process is safer, and the plating layer obtained is more uniform.

[0004] The utility model is realized by the following technical solutions:

[0005] A barrel 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 the plating piece that has not been electroplated;

[0007] The collecting unit is located at the tail of the device, and is used to collect the plating piece that has been electroplated;

[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 roller is a roller with a cross section of a regular polygon; the electroplating roller is capable of ascending and descending along a vertical direction under the action of the telescopic device; the electroplating roller is capable of rotating around its own axis; when the electroplating roller descends, the plating piece at the corresponding position is immersed into the electroplating tank, so that the sectional electroplating of the plating piece is realized.

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

[0012] The free end of the plating piece sleeved on the unwinding system passes through the pretreatment unit, bypasses the electroplating roller, sequentially passes through the cleaning unit and the drying system, and is finally collected by the collecting unit.

[0013] Further, the inner bottom surface of the electroplating tank is provided with an anode electrode.

[0014] The electroplating tank is internally provided with an electroplating solution.

[0015] The anode electrode is electrically connected to the positive pole of an external power supply, and the plating piece is electrically connected to the negative pole of the power supply.

[0016] Further, the electroplating tank is internally provided with a plurality of stirrers and a plurality of heaters.

[0017] The bottom of the electroplating tank is provided with a liquid supplementing pipeline, which is in communication with an electroplating solution supplementing system.

[0018] Further, the area of the anode electrode is greater than or equal to the area of each face of the electroplating roller.

[0019] Further, the electroplating roller is driven to rotate by a driving device b.

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

[0021] Further, the pretreatment unit comprises a pretreatment tank and a pretreatment roller.

[0022] The pretreatment tank is internally provided with a plurality of stirrers and a plurality of heaters.

[0023] The pretreatment tank is internally provided with a pretreatment solution.

[0024] The bottom of the pretreatment tank is provided with a liquid supplementing pipeline, which is in communication with a pretreatment solution supplementing system.

[0025] The pretreatment roller is a circular roller, which is supported on a ceiling or a support by a telescopic device and is capable of ascending and descending along a vertical direction under the action of the telescopic device.

[0026] When the pretreatment roller descends, the plating piece located at the bottom of the pretreatment roller is immersed into the pretreatment tank.

[0027] Further, the cleaning unit comprises a cleaning tank and a cleaning roller.

[0028] The cleaning tank is internally provided with a plurality of stirrers and a plurality of heaters.

[0029] The cleaning tank is internally provided with cleaning liquid, and the bottom of the cleaning tank is provided with a liquid supplementing pipeline in communication with a cleaning liquid supplementing system.

[0030] The cleaning roller is a circular roller supported on a ceiling or a support through an extension device and moves up and down along a vertical direction under the action of the extension device.

[0031] When the cleaning roller descends, the plated piece at the bottom of the cleaning roller is immersed in the cleaning tank.

[0032] Further, a plurality of fixed pulleys are further included.

[0033] A fixed pulley is arranged 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.

[0034] The free end of the plated piece of the unwinding system is sequentially wound around the fixed pulleys, the pretreatment unit, the fixed pulleys, the electroplating roller, the fixed pulleys, the cleaning unit, the fixed pulleys, and the drying system, and finally collected through the collecting unit.

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

[0036] Beneficial effects:

[0037] (1) The roll plating device for continuous electroplating, 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 longitudinally between the unwinding system and the collecting unit, the cross section of the electroplating roller of the electroplating unit is a regular polygon structure, the plated piece is subjected to segmented electroplating through the rotation and pressing of the electroplating roller, the size of the electroplating tank can be reduced, the current density can be reduced, thereby the current and voltage required for electroplating are reduced, the heat generated in the electroplating process is reduced, and the safety hazards such as device short circuit and plated piece burning in the previous electroplating process are effectively reduced, the heat consumption is reduced, and the continuous production in a small current density and a small electroplating tank device is realized; at the same time, by adjusting the number of sides (i.e. the number of faces of the electroplating roller) and the size of the regular polygon, the area of each segment of the plated piece can be reduced, thereby the electroplating uniformity of the surface of the plated piece is improved, and the edge effect is reduced; the extension device B is used for controlling the electroplating parameters; therefore, the device is stable in operation, the current and voltage used for electroplating are obviously reduced compared with the commonly used electroplating device, the process is safer, the plated layer obtained is more uniform, and the boundary effect in the electroplating process is greatly reduced.

[0038] (2) The roll plating device for continuous electroplating has a plurality of stirrers arranged in the electroplating tank, which can uniformly stir the electroplating solution in the electroplating tank; a plurality of heaters are arranged in the electroplating tank, which can adjust the temperature in the electroplating tank to the electroplating temperature; the electroplating tank is communicated with the electroplating solution supplementing system through the liquid supplementing pipeline, which can supplement the electroplating solution in the electroplating tank in time, and is beneficial to the continuous production of electroplated parts.

[0039] (3) The roll plating device for continuous electroplating has an anode electrode with an area greater than or equal to the area of each surface of the electroplating roller, so that the surface of each section of the plated part is uniformly plated with electricity.

[0040] (4) The roll plating device for continuous electroplating drives the electroplating roller to rotate through the driving device b, adjusts the rotating speed of the driving device b, controls the rotating speed of the electroplating roller, and thus obtains electroplated layers with different appearances and qualities on the same plated part; the rotating speed of the unwinding system and the collecting speed of the collecting unit are consistent with the rotating speed of the electroplating roller, so that the plated part in the unwinding system and the collecting unit are prevented from being loosened, and the electroplating effect is affected.

[0041] (5) The roll plating device for continuous electroplating is provided with one fixed pulley 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 moving direction of the plated part is changed through the fixed pulley, the plated part is more attached to the electroplating roller, and the electroplating effect is further improved; meanwhile, the plated part is prevented from being in contact with the edge of the tank body, and the plated part is prevented from being damaged.

[0042] (6) The roll plating device for continuous electroplating adopts the winding system or the cutting device, when there is no fixed size requirement, the plated part after electroplating is wound through the winding system, and subsequent cutting is facilitated; when there is a fixed size requirement, the plated part can be cut into the required size through the cutting device, or the plated part that is not suitable for winding is collected. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 The roll plating device is shown in the structural composition diagram of the roll plating device.

[0044] In the figure, 1 is a rotating shaft A, 2 is an unwinding system, 3 is a fixed pulley, 301 is a pulley a, 302 is a pulley b, 303 is a pulley c, 304 is a pulley d, 4 is a support frame, 5 is an extension device, 6 is a pretreatment roller, 7 is an electroplating roller, 8 is a cleaning roller, 9 is a rotating shaft B, 10 is a pretreatment tank, 11 is an electroplating tank, 12 is a cleaning tank, 13 is a drying system, 14 is a liquid supplementing pipeline, 15 is a stirrer, 16 is a heater, 17 is a power supply, 18 is a winding system, and 19 is a plated part. DETAILED DESCRIPTION

[0045] The utility model is described in detail below with reference to the drawings and examples.

[0046] Embodiment 1

[0047] The embodiment provides a barrel plating device for continuous electroplating, as shown in the figure, comprising: a drying system 13, an unwinding system 2, a collecting unit, three tank bodies, a plurality of supporting frames 4, a plurality of telescopic devices 5 and a plurality of fixed pulleys 3. Figure 1

[0048] The unwinding system 2 and the collecting unit are respectively located at the head and tail of the barrel plating device.

[0049] The unwinding system 2 is located at the head of the device and is used for winding the plating piece 19 to be electroplated. The unwinding system 2 comprises a rotating shaft A1, a supporting frame 4 and a driving device a. The rotating shaft A1 is supported on the ceiling or the support through the supporting frame 4. The driving device a is used for driving the rotating shaft A1 of the unwinding system 2 to rotate, so as to release the plating piece 19 wound on the unwinding system 2.

[0050] In the embodiment, the collecting unit is a winding system 18. The winding system 18 is located at the tail of the device and is used for winding the plating piece 19 after electroplating. The structure of the winding system 18 is the same as that of the unwinding system 2, comprising a rotating shaft A1, a supporting frame 4 and a driving device a. The rotating shaft A1 is supported on the ceiling or the support through the supporting frame 4. The driving device a in the winding system 18 is used for driving the rotating shaft A1 in the winding system 18 to rotate.

[0051] As an example, the supporting frame 4 adopts a tensioner, and the height of the unwinding system 2 or the winding system 18 wound with the plating piece 19 is changed through the telescopic movement of the tensioner A4.

[0052] The three tank bodies are longitudinally arranged (in the head-tail direction) between the unwinding system 2 and the winding system 18. The inner bottom surface of each tank body is provided with a plurality of stirrers 15; the inner wall surface of the tank body is provided with a plurality of heaters 16. The bottom of each tank body is provided with a liquid supplementing pipeline 14, and the internal space of each tank body is respectively communicated with the corresponding liquid supplementing system through the liquid supplementing pipeline 14. As an example, the stirrers 15, the heaters 16 and the liquid supplementing system can be controlled through a control system.

[0053] The three tank bodies are sequentially arranged from the head to the tail as a pretreatment tank 10, an electroplating tank 11 and a cleaning tank 12.

[0054] The tank body of the pretreatment tank 10 is internally provided with a pretreatment liquid, which is used for oil removal and pickling of the plating piece 19; the pretreatment liquid is uniformly stirred through the stirrer 15, heated to a set pretreatment temperature through the heater 16, and supplemented through the pretreatment liquid supplementing system. ​

[0055] The inside of the tank body of the electroplating tank 11 is provided with electroplating solution for electroplating of the plated piece 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 source 17. The negative pole of the power source 17 is electrically connected to the plated piece 19. When the plated piece 19 is immersed in the electroplating solution, a closed circuit is formed between the anode and the cathode, thus realizing electroplating. The electroplating solution is stirred by the stirrer 15, heated to a set electroplating temperature by the heater 16, and supplemented by the electroplating solution supplementing system.

[0056] The inside of the tank body of the cleaning tank 12 is provided with cleaning solution for cleaning the surface of the plated piece 19 to remove impurities on the surface of the plated piece 19. The cleaning solution is stirred by the stirrer 15, heated to a set cleaning temperature by the heater 16, and supplemented by the cleaning solution supplementing system.

[0057] The top of the pretreatment tank 10, the electroplating tank 11 and the cleaning tank 12 is provided with a roller system for pressing the plated piece 19 into the corresponding tank body. The roller system comprises a roller, a rotating shaft B9 and a telescopic device 5. The rotating shaft B9 is supported on the ceiling or a support by the telescopic device 5, and the lifting of the roller is realized by the telescopic movement of the telescopic device 5. In this embodiment, the telescopic device 5 is preferably a tensioner. The roller is coaxially sleeved on the rotating shaft B9, and the rotation of the rotating shaft B9 drives the rotation of the roller. When the telescopic device 5 is extended downward, the roller moves downward to immerse the plated piece 19 in the corresponding liquid (i.e. the pretreatment solution, the electroplating solution or the cleaning solution), and at the same time, it is used to control the distance between the anode and the cathode and other electroplating parameters. The rotation of the roller around the rotating shaft B9 enables the plated piece 19 to be transferred to the tail of the device.

[0058] The roller above the electroplating tank 11 (hereinafter referred to as the electroplating roller 7) is a roller with a cross section of a regular polygon. As the electroplating roller 7 rotates, each face of the roller successively descends and immerses a section of the plated piece 19 in contact with the face into the electroplating tank to perform electroplating. When the electroplating of the face is completed, the electroplating roller 7 rotates by 360 / n degrees (n is the number of sides of the regular polygon), to perform electroplating with the next section of the plated piece 19, thus realizing segmented electroplating of the plated piece 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 the number of sides, the smaller the size of each electroplating face, the smaller the edge effect, and the more uniform the electroplating on the surface of the finished plated piece.

[0059] The electroplating roller 7 is driven to rotate by the drive device b. By adjusting the rotation speed of the electroplating roller 7 by the drive device b, the immersion time of the corresponding workpiece 19 in the electroplating solution is changed, thereby obtaining electroplating layers with different morphologies and qualities (coarse or dense, etc.) on the same workpiece 19. When immersing the workpiece 19 in the electroplating solution, the contact between the electroplating solution and the rest of the workpiece 19 is minimized as much as possible. The drive device b acts as the main rotating body, and the rotation speeds of the drive device a of the unwinding system 2 and the drive device a of the winding system 18 are consistent with the rotation speed of the drive device b (the moving length of the workpiece is consistent), preventing the workpiece 19 in the winding system from becoming loose from the unwinding system. The area of ​​the anode electrode is greater than or equal to the area of ​​one side of the electroplating roller 7, so that the surface of each section of the workpiece 19 is uniformly electroplated.

[0060] As an example, the rollers located above the pretreatment tank 10 and the cleaning tank 12 are circular rollers, and the two rollers are respectively the pretreatment roller 6 and the cleaning roller 8.

[0061] As an example, the pretreatment roller 6 and the cleaning roller 8 are each equipped with a drive device c, which is used to drive the rotation of the pretreatment roller 6 and the cleaning roller 8, so that the plated part 19 is transferred smoothly.

[0062] The pretreatment tank 10, the pretreatment roller 6, and the corresponding rotating shaft B9 and telescopic device 5 together form a pretreatment unit.

[0063] The electroplating tank 11, the electroplating roller 7, and the corresponding rotating shaft B9 and telescopic device 5 together form an electroplating unit.

[0064] The cleaning tank 12, the cleaning roller 8, the corresponding rotating shaft B9, and the telescopic device 5 together form a pretreatment unit.

[0065] The drying system 13 is located between the cleaning tank 12 and the winding system 18, and is used to dry the plated parts 19 after electroplating.

[0066] A fixed pulley 3 is provided between the unwinding system 2 and the pretreatment roller 6, between the pretreatment roller 6 and the electroplating roller 7, between the electroplating roller 7 and the cleaning roller 8, and between the cleaning roller 8 and the drying system 13. The fixed pulleys 3 are used to change the moving direction of the plated part 19, and are supported on the ceiling or bracket by a support frame 4. Let the fixed pulleys 3 be pulley a301, pulley b302, pulley c303, and pulley d304. The plated part 19 is stretched to both sides by the fixed pulleys 3 located on both sides of the roller, i.e., as shown... Figure 1As shown, pulleys a301 and b302 ensure that the plated part 19 is completely in contact with the lower surface of the pretreatment roller 6; pulleys b302 and c303 ensure that the plated part 19 is completely in contact with the lower surface of the electroplating roller 7; and pulleys c303 and d304 ensure that the plated part is completely in contact with the lower surface of the cleaning roller 8. This allows the corresponding plated part 19 to be evenly contacted with the pretreatment solution, electroplating solution, and cleaning solution, improving the electroplating effect. In this embodiment, the support frame 4 is preferably a tensioner. The height of the fixed pulley 3 is adjusted by the extension and retraction of the tensioner to accommodate different electroplating rollers 7. This also prevents the plated part 19 from contacting the edge of the tank.

[0067] As an example, when the plated part 19 has a fixed size requirement after electroplating, a cutting device is used as a collection unit to directly cut the plated part 19 into rectangular finished products for subsequent stacking and sorting. The cutting device is also suitable for collecting plated parts 19 that are not suitable for rolling or bending.

[0068] The cutting speed of the cutting device is consistent with the rotation speed of the roller.

[0069] The free end of the plated part 19, which is mounted on the unwinding system 2, passes sequentially around pulley a301, pretreatment roller 6, pulley b302, electroplating roller 7, pulley c303, cleaning roller 8, pulley d304, and drying system 13, and is finally wound onto the winding system 18.

[0070] In this embodiment, the plated part 19 is a nickel mesh.

[0071] Example 2:

[0072] This embodiment provides a method for using a barrel plating apparatus for continuous electroplating. The method is based on the barrel plating apparatus in Embodiment 1 and includes the following steps:

[0073] Step 1: Prepare and start the barrel plating equipment

[0074] Add the corresponding solutions to the pretreatment tank 10, plating tank, and cleaning tank 12, and turn on the control system, stirrer 15, heater 16, and drying system 13.

[0075] One end of the plated part 19 is wound onto the unwinding system 2, and the other end is set on the collection unit. It is unwound under the drive of the rotating shaft A1 in the unwinding system 2.

[0076] Step 2: Pre-treatment of the plated parts, including degreasing and pickling.

[0077] The plated part 19 is released and passes under the pretreatment roller 6 after passing over the pulley a301. The pretreatment roller 6 rotates through the corresponding shaft B9 and is lowered through the corresponding telescopic device 5, immersing the plated part 19 located below the pretreatment roller 6 into the pretreatment liquid in the pretreatment tank 10 for pretreatment.

[0078] Step 3: Segmented electroplating of the plated parts

[0079] After pretreatment, the plated part 19 passes around pulley b302 and passes under the electroplating drum 7. The electroplating drum 7 rotates via the corresponding shaft B9 and descends via the corresponding telescopic device 5, thereby immersing the pretreated plated part 19 into the electroplating solution in the electroplating tank 11 for electroplating.

[0080] As the electroplating drum 7 rotates, each surface of the electroplating drum 7 descends sequentially, immersing the section of the plated part 19 that contacts the bottommost surface into the electroplating tank 11 for electroplating. After the plated part is completed, the electroplating drum 7 rotates 360 / n degrees (n is the number of sides of the regular polygon of the electroplating drum 7) to perform electroplating on the next section of the plated part 19, thereby achieving segmented electroplating.

[0081] The electroplating drum 7 is the rotating body, and the rotation speed of the winding system and the collection speed of the collection unit (i.e. the moving length of the plated part 19) are consistent with the rotation speed of the electroplating drum 7.

[0082] Step 4: Cleaning the plated parts

[0083] After electroplating, the plated part 19 passes around the pulley c303 and goes under the cleaning drum 8. The cleaning drum 8 rotates via the corresponding shaft B9 and moves up and down via the corresponding telescopic device 5, thereby immersing the electroplated part 19 in the cleaning solution in the cleaning tank 12 for cleaning the surface of the part 19.

[0084] Step 5: Drying and collecting the plated parts

[0085] After cleaning, the plated part 19 passes around the pulley d304 and enters the drying system 13 under the winding action of the winding system 18.

[0086] Step Six: Collect the electroplated parts.

[0087] After drying, the electroplated parts are collected by the collection unit.

[0088] The plated part 19 is a splicable structure located after the electroplating unit. The parts that cannot be electroplated are cut and spliced ​​with other plated parts (by means of weaving or welding) before being electroplated.

[0089] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A barrel plating apparatus for continuous electroplating, characterized in that, include: Unwinding system (2), collection unit, drying system (13), pretreatment unit, electroplating unit and cleaning unit; The unwinding system (2) is located at the head of the device and is used to wind up the unplated plated part (19); The collection unit is located at the rear of the device and is used to collect the electroplated parts (19) that have been electroplated. The pretreatment unit, electroplating unit and cleaning unit are arranged sequentially between the unwinding system (2) and the rewinding system (18); The electroplating unit includes: an electroplating tank (11) and an electroplating roller (7); The electroplating roller (7) is a roller with a regular polygonal cross-section; the electroplating roller (7) can move up and down in the vertical direction under the action of the telescopic device (5); the electroplating roller (7) can rotate around its own axis; when the electroplating roller (7) descends, the corresponding part (19) is immersed in the electroplating tank (11) to realize the segmented electroplating of the part (19); The drying system is located between the collection unit and the washing unit; The free end of the plated part (19) mounted on the unwinding system (2) passes through the pretreatment unit, around the electroplating drum (7), and then passes through the cleaning unit and the drying system (13) in sequence before finally being collected by the collection unit.

2. The barrel plating apparatus for continuous electroplating as described 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) is filled with electroplating solution; The anode electrode is electrically connected to the positive terminal of an external power source (17), and the plated part (19) is electrically connected to the cathode of the power source (17).

3. The barrel plating apparatus for continuous electroplating as described in claim 2, characterized in that, The electroplating tank (11) is also equipped with several stirrers (15) and several heaters (16); The bottom of the electroplating tank (11) is provided with a replenishment pipe (14), which is connected to the electroplating solution replenishment system.

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

5. The barrel plating apparatus for continuous electroplating as described in claim 1, characterized in that, The electroplating roller (7) is driven to rotate by the drive device b; The rotational speed of the unwinding system and the collection speed of the collecting unit are consistent with the rotational speed of the electroplating drum (7).

6. The barrel plating apparatus for continuous electroplating as described in claim 1, characterized in that, The pretreatment unit includes: a pretreatment tank (10) and a pretreatment roller (6); The pretreatment tank (10) is equipped with several stirrers (15) and several heaters (16); The pretreatment tank (10) is filled with pretreatment liquid; The bottom of the pretreatment tank (10) is provided with a replenishment pipe (14), which is connected to the pretreatment liquid replenishment system. The pretreatment roller (6) is a circular roller, which is supported on the ceiling or bracket by the telescopic device (5) and moves up and down in the vertical direction under the action of the telescopic device (5); As the pretreatment roller (6) descends, the plated part (19) located at its bottom is immersed in the pretreatment tank (10).

7. The barrel plating apparatus for continuous electroplating as described in claim 1, characterized in that, The cleaning unit includes a cleaning tank (12) and a cleaning drum (8); The cleaning tank (12) is equipped with several agitators (15) and several heaters (16); The cleaning tank is filled with cleaning fluid, and a replenishment pipe (14) is provided at the bottom of the cleaning tank (12), which is connected to the cleaning fluid replenishment system. The cleaning drum (8) is a circular drum, which is supported on the ceiling or bracket by the telescopic device (5) and moves up and down in the vertical direction under the action of the telescopic device (5); As the cleaning roller (8) descends, the plated part (19) located at its bottom is immersed in the cleaning tank (12).

8. A barrel plating apparatus for continuous electroplating as described in any one of claims 1-7, characterized in that, Also includes: Several 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), pretreatment unit, fixed pulley (3), electroplating drum (7), fixed pulley (3), cleaning unit, fixed pulley (3), drying system (13) in sequence, and is finally collected by the collection unit.

9. A barrel plating apparatus for continuous electroplating as described in any one of claims 1-7, characterized in that, The collection unit employs a winding system (18) or a cutting device.

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