CN217781307U - Film coating device - Google Patents

Abstract

The utility model provides a coating device, include: the device comprises a support, and an unreeling part, a thickening tank and an electroplating bath which are sequentially arranged on the support, wherein the unreeling part comprises an air expansion shaft and a motor, the motor is connected with the air expansion shaft, and a metal film is wound on the outer side of the air expansion shaft; the thickening groove comprises a plurality of first passing rollers and a plurality of conductive rollers which are respectively rotatably arranged on the bracket; the first anode device and the second anode device are respectively arranged on the groove body of the thickening groove, and the electroplating groove comprises an upper limiting roller and a lower limiting roller which are used for limiting the metal film. In the embodiment of the utility model, the metal film is limited by the upper and lower limiting rollers in the electroplating bath, so that the metal film is prevented from being scratched or punctured by the titanium blue due to the contact with the titanium blue; in addition, the thickness of the coating of the film is increased in the initial electroplating process through the thickening tank, so that the conductivity of the film is improved, and the electroplating quality of the film is further improved.

Description

Film coating device

Technical Field

The utility model relates to a metal film prepares technical field, concretely relates to coating device.

Background

With the development of the technology, the demand of coating on the surface of a flexible film substrate is more and more increased, and the flexible film substrate is usually electroplated by using water electroplating equipment in industrial production, namely, water plating solution is configured according to the needs of various bodies and coatings, so that the flexible film substrate can be finished in a short time by the water plating solution.

In a conventional electroplating apparatus, a plurality of plating tanks for supplying a plating solution are generally provided, and the plating tanks are devices for plating a substance, and the plating tank deposits a metal on the surface of the substance to be plated by using the principle of electroplating, and thereby the object of electroplating is achieved.

However, in the prior art, when the film is carried in the electroplating bath, the film is easily scratched or scratched with titanium blue, and the electroplating quality of the film is affected.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the embodiments of the present invention is to provide a film plating apparatus to solve the technical problem that the plating quality of a film is affected by scratching, scratching or puncturing the film with titanium blue when the film is moved in a plating bath in the prior art.

In order to achieve the above object, an embodiment of the present invention provides a coating apparatus, including:

a bracket, and a unreeling part, a thickening tank and an electroplating tank which are arranged on the bracket in sequence, wherein,

unreeling portion includes: the air expansion shaft is connected with the motor, and a metal film is wound on the outer side of the air expansion shaft;

the thickening tank includes: the first rollers and the conductive rollers are respectively rotatably arranged on the bracket; the first anode device and the second anode device are respectively arranged on the groove body of the thickening groove;

the plating bath includes: and the upper limiting roller and the lower limiting roller are used for limiting the metal film.

In some possible embodiments, the plating device further includes a tension control part, the tension control part including:

the tension control seat is positioned between the unwinding part and the thickening groove and is fixedly arranged on the bracket;

the first tension seat and the second tension seat are respectively arranged on the tension control seat;

the first tension seat is provided with a first tension roller, and the second tension seat is provided with a second tension roller.

In some possible embodiments, the first tension seat and the second tension seat are both provided with a first hole, the tension control seat is provided with a second hole, and the second hole is larger than the first hole;

and fixing pieces are inserted into the first hole and the second hole to respectively fix the first tension seat and the second tension seat on the tension control seat.

In some possible embodiments, the thickening tank may include:

and the second roller is positioned between the first anode device and the second anode device and is rotatably arranged on the groove body of the thickening groove.

In some possible embodiments, the first anode device may include: the first anode titanium blue, the second anode titanium blue, the third anode titanium blue and the fourth anode titanium blue are obliquely arranged on the groove body of the thickening groove respectively;

the first anode titanium blue and the second anode titanium blue are arranged in parallel up and down;

the third anode titanium blue and the fourth anode titanium blue are arranged in parallel up and down;

and phosphor copper plates are respectively arranged in the first anode titanium blue, the second anode titanium blue, the third anode titanium blue and the fourth anode titanium blue.

In some possible embodiments, the phosphor-copper plates are disposed at two ends of the groove body, close to the thickening groove, of the first anode titanium blue, the second anode titanium blue, the third anode titanium blue and the fourth anode titanium blue, respectively.

In some possible embodiments, the thickening tank may further include:

and the third roller is positioned between the second anode titanium blue and the fourth anode titanium blue and is rotatably arranged on the groove body of the thickening groove.

In some possible embodiments, the second anode device may include: and the upper anode titanium blue group and the lower anode titanium blue group are respectively arranged on the groove body of the thickening groove, and copper balls are respectively arranged in the upper anode titanium blue group and the lower anode titanium blue group.

In some possible embodiments, the thickened groove may further include:

and the fourth roller is positioned in the thickening tank and close to one side of the electroplating tank, and is rotatably arranged on the tank body of the thickening tank.

In some possible embodiments, the coating device may further include:

and the upper and lower squeezing rollers are positioned between the thickening tank and the electroplating tank and are rotatably arranged on the bracket.

The beneficial technical effects of the technical scheme are as follows:

the embodiment of the utility model provides a pair of coating device, coating device includes: the device comprises a support, and an unreeling part, a thickening tank and an electroplating tank which are sequentially arranged on the support, wherein the unreeling part comprises an air expansion shaft and a motor, the motor is connected with the air expansion shaft, and a metal film is wound on the outer side of the air expansion shaft; the thickening groove comprises a plurality of first passing rollers and a plurality of conductive rollers which are respectively rotatably arranged on the bracket; a first anode assembly and a second anode assembly respectively mounted on the body of the thickened tank, the plating tank comprising: and the upper limiting roller and the lower limiting roller are used for limiting the metal film. In the embodiment of the utility model, the metal film is limited by the upper and lower limiting rollers in the electroplating bath, so as to avoid the metal film from contacting with the titanium blue and being scratched or punctured by the titanium blue; in addition, the thickness of the coating of the metal film is increased in the initial electroplating process through the thickening tank, so that the conductivity of the metal film is improved, and the electroplating quality of the metal film is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of the overall structure of a coating device according to an embodiment of the present invention;

FIG. 2 is a plan view of the overall structure of a coating apparatus according to an embodiment of the present invention;

fig. 3 is a plan view of a tension control portion according to an embodiment of the present invention;

fig. 4 is a perspective view of a tension control portion according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a thickening tank according to an embodiment of the present invention;

fig. 6 is a partially enlarged view of the mounting positions of the upper and lower squeeze rollers according to the embodiment of the present invention.

The reference numbers illustrate:

1. a support;

2. a unwinding part; 21. an air expansion shaft; 22. a motor;

3. thickening the groove; 31. a first roller; 32. a conductive roller; 33. a first anode means; 331. a first anodic titanium blue; 332. A second anodic titanium blue; 333. a third anode titanium blue; 334. fourth anode titanium blue; 335. a phosphor copper plate; 34. a second anode means; 341. an upper anode titanium blue group; 342. a lower anode titanium blue group; 35. a second roller; 36. a third roller passing; 37. fourth roller passing;

4. an electroplating bath;

5. a metal thin film;

6. a tension control section; 61. a tension control seat; 62. a first tension seat; 63. a second tension seat; 64. a first tension roller; 65. a second tension roller; 601. a first hole; 602. a second hole;

7. and an upper squeeze roller and a lower squeeze roller.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Fig. 1 is a perspective view of an overall structure of a coating apparatus according to an embodiment of the present invention, and fig. 2 is a plan view of an overall structure of a coating apparatus according to an embodiment of the present invention, as shown in fig. 1 and fig. 2, the coating apparatus includes: the film surface winding device comprises a support 1, a winding unwinding part 2, a thickening tank 3 and a plating tank 4 which are sequentially arranged on the support 1, wherein the winding unwinding part 2 comprises an air expansion shaft 21 and a motor 22, the motor 22 is connected with the air expansion shaft 21, a metal film 5 is wound on the outer side of the air expansion shaft 21, the air expansion shaft 21 is used for installing an original film winding core, and the center of the film surface can be moved to the central line of the device through the left-and-right movement of the winding core on the air expansion shaft 21, so that the deviation generated in the using process is reduced; the thickening groove 3 comprises a plurality of first passing rollers 31 and a plurality of conductive rollers 32 which are respectively rotatably arranged on the bracket 1; a first anode device 33 and a second anode device 34 are respectively arranged on the body of the thickening tank 3. Specifically, in the electroplating process, after the metal film 5 is unreeled through the unreeling part 2, the metal film 5 is guided into the plurality of conductive rollers 32 through the plurality of first rollers 31, the metal film 5 passes through the plurality of conductive rollers 32 to provide cathode electrodes for two sides of the metal film 5, the first anode device 33 and the second anode device 34 provide anode electrodes, so that the metal film 5 is thickened and plated in the thickening tank 3, and after the metal film 5 is thickened and plated in the thickening tank 3, the metal film 5 with the thickened and plated is electroplated through the electroplating tank 4. The embodiment of the utility model provides an in, through thickening groove 3 increase metal film 5's cladding material thickness in initial electroplating process, improve metal film 5's electric conductive property, and then improve metal film 5's electroplating quality.

Fig. 3 is a plan view of a tension control portion according to an embodiment of the present invention, fig. 4 is a perspective view of a tension control portion according to an embodiment of the present invention, as shown in fig. 3 and fig. 4, in some embodiments, the coating apparatus further includes a tension control portion 6, the tension control portion 6 is located between the unwinding portion 2 and the thickening groove 3, and is fixedly mounted on the bracket 1, which includes: the tension control seat 61, the first tension seat 62, the second tension seat 63, the first tension roller 64 and the second tension roller 65, wherein the first tension seat 62 and the second tension seat 63 are respectively arranged on the tension control seat 61; the first tension roller 64 is disposed on the first tension base 62, and the second tension roller 65 is disposed on the second tension base 63. The embodiment of the utility model provides a can control the distance between first tension seat 62 and the second tension seat 63 through removing first tension seat 62 and second tension seat 63 to control the tension of metal film 5 in the film releasing process through first tension roller 64 and second tension roller 65.

As shown in fig. 3 and 4, in some embodiments, the first tension seat 62 and the second tension seat 63 are both provided with a first hole 601, the tension control seat 61 is provided with a second hole 602, and the second hole 602 is larger than the first hole 601; the first tension bracket 62 and the second tension bracket 63 are fixed to the tension control bracket 61 by inserting pins into the first hole and the second hole, respectively. The embodiment of the present invention adjusts the distance between the first tension seat 62 and the second tension seat 63, i.e. after the metal film 5 is adjusted to a suitable tension, the first hole 601 and the second hole 602 are fixed by the fixing member (e.g. the bolt), so as to fix the first tension seat 62 and the second tension seat 63 on the tension control seat 61 respectively.

The embodiment of the utility model provides a can conveniently adjust metal film 5's tension, avoid metal film 5 fold or warp to appear, influence electroplating quality, in addition, second hole 602 is greater than first hole 601, can be convenient for finely tune the position of first tension seat 62 and second tension seat 63 on tension control seat 61 respectively to adjust metal film 5's tension better.

Fig. 5 is a schematic structural diagram of a thickening tank according to an embodiment of the present invention, and as shown in fig. 5, the thickening tank 3 includes: and a second roller 35 positioned between the first anode device 33 and the second anode device 34 and rotatably mounted on the body of the thickening tank 3. The embodiment of the present invention can introduce the metal film 5 from the first anode device 33 to the second anode device 34 through the second roller 35, and can also avoid the metal film 5 from being punctured by the contact with the first anode device 33 and the second anode device 34.

As shown in fig. 5, in some embodiments, first anode assembly 33 includes: a first anode titanium blue 331, a second anode titanium blue 332, a third anode titanium blue 333 and a fourth anode titanium blue 334 which are respectively and obliquely arranged on the tank body of the thickening tank 3, specifically, the first anode titanium blue 331 and the third anode titanium blue 333 are arranged in a V shape, and the second anode titanium blue 332 and the fourth anode titanium blue 334 are arranged in a V shape; the first anode titanium blue 331 and the second anode titanium blue 332 are arranged in parallel up and down; the third anode titanium blue 333 and the fourth anode titanium blue 334 are arranged in parallel up and down; the third anode titanium blue 333 and the fourth anode titanium blue 334 are located downstream of the first anode titanium blue 331 and the second anode titanium blue 332; phosphor copper plates 335 are respectively disposed in the first anode titanium blue 331, the second anode titanium blue 332, the third anode titanium blue 333, and the fourth anode titanium blue 334. Specifically, a gap is formed between the first anode titanium blue 331 and the second anode titanium blue 332, a gap is formed between the third anode titanium blue 333 and the fourth anode titanium blue 334, and the metal thin film 5 sequentially penetrates through the gap between the first anode titanium blue 331 and the second anode titanium blue 332 and the gap between the third anode titanium blue 333 and the fourth anode titanium blue 334 to electroplate the conductive thin film 5.

The embodiment of the utility model provides a through with first positive pole titanium blue 331, second positive pole titanium blue 332, third positive pole titanium blue 333 and fourth positive pole titanium blue 334 respectively the slope set up on the cell body of bodiness groove 3, can improve the utilization ratio in space, in addition, through placing phosphor copper plate 335 in every titanium blue, can increase metallic film 5's cladding material thickness.

As shown in fig. 5, in some embodiments, the phosphor plates 335 are disposed at two ends of the first anode titanium blue 331, the second anode titanium blue 332, the third anode titanium blue 333, and the fourth anode titanium blue 334 respectively close to the tank body of the thickening tank 3, that is, the phosphor plates are not disposed at the middle positions of the first anode titanium blue 331, the second anode titanium blue 332, the third anode titanium blue 333, and the fourth anode titanium blue 334, at this time, the copper layers on the left and right sides of the metal film 5 can be plated a little more, so that the conductivity of the metal film 5 is increased when the rollers in the conductive module clamp two sides of the metal film 5 in the subsequent plating process.

As shown in fig. 2 and 5, in some embodiments, the thickening tank 3 further comprises: and a third roller 36 is positioned between the second anode titanium blue 332 and the fourth anode titanium blue 334 and is rotatably arranged on the groove body of the thickening tank 3. The embodiment of the utility model provides a lead to metal film 5 through setting up the third roller 36, can avoid metal film 5 to hang second positive pole titanium blue 332 and fourth positive pole titanium blue 334, destroy metal film 5.

As shown in fig. 2 and 5, in some embodiments, the second anode arrangement 34 includes: go up blue group 341 of positive pole titanium and down blue group 342 of positive pole titanium, set up respectively on the cell body of bodiness groove 3, go up and be provided with the copper ball in blue group 341 of positive pole titanium and the blue group 342 of negative pole titanium respectively, go up blue group 341 of positive pole titanium and be used for splendid attire copper ball with the blue group 342 of negative pole titanium, go up the both ends of blue group 341 of positive pole titanium and the blue group 342 of negative pole titanium and contact with the positive pole post of power respectively to conduct the copper ball that holds in it with positive pole electricity from the positive pole post of power, form the electroplating circuit through copper ball and plating solution, the utility model discloses last blue group 341 of positive pole titanium and the blue group 342 of negative pole titanium structure are different, and the principle is the same. The upper anode titanium blue group 341 and the lower anode titanium blue group 342 are both provided with small holes, and the function of the small holes is to enable power lines to pass through in the electroplating process so as to form an effective electroplating effect. Specifically, a gap is formed between the upper anode titanium blue group 341 and the lower anode titanium blue group 342, and in the electroplating process, the metal film 5 penetrates through the gap between the upper anode titanium blue group 341 and the lower anode titanium blue group 342 to electroplate the metal film 5. The embodiment of the utility model provides a can electroplate the two sides of metal film 5 through last anodal titanium blue group 341 and lower anodal titanium blue group 342, further increase the thickness of cladding material.

As shown in fig. 2, in some embodiments, the thickening tank 3 further comprises: and a fourth roller 37 which is positioned in the thickening tank 3 and close to one side of the electroplating tank 4 and is rotatably arranged on the tank body of the thickening tank 3. The embodiment of the utility model provides a through the fourth roller 37 be convenient for lead into plating bath 4 with the metal film 5 of bodiness cladding material and electroplate.

Fig. 6 is a partial enlarged view of the mounting positions of the upper and lower squeeze rolls according to an embodiment of the present invention, as shown in fig. 6, in some embodiments, the coating apparatus further includes: and the upper and lower squeezing rollers 7 are positioned between the thickening tank 3 and the electroplating tank 4 and are rotatably arranged on the bracket 1. The embodiment of the utility model provides a can extrude the exhibition flat to the metal film 5 of bodiness through upper and lower squeeze roll 7, avoid metal film 5 fold or deformation to appear.

The utility model discloses a theory of operation as follows:

in the electroplating process, after the metal film 5 is unreeled through the unreeling part 2, the distance between the first tension seat 62 and the second tension seat 63 is adjusted, after the metal film 5 is adjusted to a proper tension, the first hole 601 and the second hole 602 are fixed through a fixing member (such as a latch) and the like so as to respectively fix the first tension seat 62 and the second tension seat 63 on the tension control seat 61, and then the metal film 5 is guided onto the plurality of conductive rollers 32 through the plurality of first passing rollers 31, the metal film 5 passes through the plurality of conductive rollers 32, cathode electrodes are provided on two sides of the metal film 5, the metal film 5 sequentially passes through a gap between the first anode titanium blue 331 and the second anode titanium blue 332 and a gap between the third anode titanium blue 334 and the fourth anode titanium blue 334 so as to increase the plating thickness of the conductive film 5, the thickened metal film 5 is guided under the second passing rollers 35, passes through a gap between the upper anode titanium blue group 341 and the lower titanium blue group 342, the metal film 5 is thickened, and then the plating layer of the metal film 5 is electroplated by the fourth roller 37 so as to be electroplated 4. And the electroplated metal film 5 is rolled up through a rolling device.

The utility model provides a pair of coating device's technological effect as follows:

in the embodiment of the utility model, the coating thickness of the metal film 5 is increased in the initial electroplating process through the thickening tank 3, so that the conductivity of the metal film 5 is improved, and the electroplating quality of the metal film 5 is further improved;

the embodiment of the utility model can control the tension of the metal film 5 in the film releasing process through the first tension roller 64 and the second tension roller 65 by controlling the distance between the first tension seat 62 and the second tension seat 63;

the embodiment of the utility model can conveniently adjust the tension of the metal film 5, and avoid the metal film 5 from wrinkling or deforming to influence the electroplating quality;

the embodiment of the present invention can introduce the metal film 5 from the first anode device 33 to the second anode device 34 through the second roller 35, and can also avoid the metal film 5 from being punctured by the contact with the first anode device 33 and the second anode device 34.

The embodiment of the utility model provides a through set up first positive pole titanium blue 331, second positive pole titanium blue 332, third positive pole titanium blue 333 and fourth positive pole titanium blue 334 on the cell body of bodiness groove 3 respectively aslope, can improve the utilization ratio of space, in addition, through placing phosphor copper plate 335 in every titanium blue, can increase the cladding thickness of metallic film 5;

the embodiment of the utility model can electroplate the two sides of the metal film 5 through the upper anode titanium blue group 341 and the lower anode titanium blue group 342, thereby further increasing the thickness of the plating layer;

the embodiment of the utility model is convenient for leading the metal film 5 of the thickened coating into the plating bath for electroplating;

the embodiment of the utility model provides a can extrude the exhibition flat to the metal film 5 of bodiness through upper and lower squeeze roll 7 to improve metal film 5's electroplating quality.

In the description of the embodiments of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" and the like are directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted, connected" or "connected" should be interpreted broadly, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A coating apparatus, comprising:

a bracket (1), and a unreeling part (2), a thickening tank (3) and an electroplating tank (4) which are arranged on the bracket (1) in sequence, wherein,

the unwinding part (2) comprises: the air inflation device comprises an air inflation shaft (21) and a motor (22), wherein the motor (22) is connected with the air inflation shaft (21), and a metal film (5) is wound on the outer side of the air inflation shaft (21);

the thickening tank (3) comprises: a plurality of first passing rollers (31) and a plurality of conductive rollers (32) which are respectively rotatably arranged on the bracket (1); a first anode device (33) and a second anode device (34) which are respectively arranged on the groove body of the thickening groove (3);

the plating tank (4) includes: and the upper limiting roller and the lower limiting roller (41) are used for limiting the metal film (5).

2. The plating device according to claim 1, further comprising a tension control section (6), wherein the tension control section (6) comprises:

the tension control seat (61) is positioned between the unwinding part (2) and the thickening groove (3) and is fixedly arranged on the bracket (1);

a first tension seat (62) and a second tension seat (63) which are respectively arranged on the tension control seat (61);

the first tension seat (62) is provided with a first tension roller (64), and the second tension seat (63) is provided with a second tension roller (65).

3. The plating device according to claim 2,

the first tension seat (62) and the second tension seat (63) are respectively provided with a first hole (601), the tension control seat (61) is provided with a second hole (602), and the second hole (602) is larger than the first hole (601);

and fixing pieces are inserted into the first hole (601) and the second hole (602) to fix the first tension seat (62) and the second tension seat (63) on the tension control seat (61) respectively.

4. The plating device according to claim 1, wherein the thickening tank (3) further comprises:

and the second roller (35) is positioned between the first anode device (33) and the second anode device (34) and is rotatably arranged on the groove body of the thickening groove (3).

5. The plating device according to claim 4,

the first anode arrangement (33) comprises: a first anode titanium blue (331), a second anode titanium blue (332), a third anode titanium blue (333) and a fourth anode titanium blue (334) which are respectively and obliquely arranged on the groove body of the thickening groove (3);

the first anode titanium blue (331) and the second anode titanium blue (332) are arranged in parallel up and down;

the third anode titanium blue (333) and the fourth anode titanium blue (334) are arranged in parallel up and down;

phosphor-copper plates (335) are respectively arranged in the first anode titanium blue (331), the second anode titanium blue (332), the third anode titanium blue (333) and the fourth anode titanium blue (334).

6. The plating device according to claim 5,

the phosphor copper plate (335) is arranged at two ends of the groove body of the thickening groove (3), wherein the first anode titanium blue (331), the second anode titanium blue (332), the third anode titanium blue (333) and the fourth anode titanium blue (334) are respectively close to the two ends of the groove body of the thickening groove (3).

7. The coating device according to claim 6, wherein said thickening tank (3) further comprises:

and the third roller (36) is positioned between the second anode titanium blue (332) and the fourth anode titanium blue (334) and is rotatably arranged on the groove body of the thickening groove (3).

8. The plating device according to claim 4,

the second anode arrangement (34) comprises: the upper anode titanium blue group (341) and the lower anode titanium blue group (342) are respectively arranged on the groove body of the thickening groove (3), and copper balls are respectively arranged in the upper anode titanium blue group (341) and the lower anode titanium blue group (342).

9. The coating device according to claim 1, wherein the thickening tank (3) comprises:

and the fourth roller (37) is positioned in the thickening tank (3) and close to one side of the electroplating tank (4), and is rotatably arranged on the tank body of the thickening tank (3).

10. The plating device according to claim 1, further comprising:

and the upper and lower squeezing rollers (7) are positioned between the thickening tank (3) and the electroplating tank (4) and are rotatably arranged on the bracket (1).

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