CN216107279U - A conductive roller and coating machine for coating machine - Google Patents

Abstract

The utility model relates to the technical field of conductive rollers, in particular to a conductive roller for a film coating machine and the film coating machine. One part of the surface of the conductive roller is an insulating surface, the rest of the surface of the conductive roller is a conductive surface, and the surface of the conductive roller is the surface of the conductive roller contacted with a film to be plated. The conductive roller can reduce the phenomenon that the roller surface of the conductive roller is plated with copper, thereby reducing the difficulty of cleaning the conductive roller, reducing the probability of physical pinholes on the film and improving the excellent rate of film products.

Description

A conductive roller and coating machine for coating machine

Technical Field

The utility model relates to the technical field of conductive rollers, in particular to a conductive roller for a film coating machine and the film coating machine.

Background

The conductive roller is an important component in the processes of film chemical treatment, electrolysis, electroplating and reflow, and is mainly used for transmitting current and guiding the film to pass through, so that the conductive roller needs to have good performance requirements on conductivity, corrosion resistance, wear resistance and the like.

In the related art, when the film is plated with copper, the roll surface of the conductive roll is also easily plated with copper, and when the conductive roll continues to guide the film to be conveyed in the film plating machine, the copper plated part on the roll surface of the conductive roll can cause fatal defects such as physical pinholes and the like on the film, and the excellent rate of the product is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The application discloses a conductive roller and coating machine for coating machine uses this conductive roller can reduce the roll surface of conductive roller and is plated the phenomenon of copper to reduce the degree of difficulty of wasing the conductive roller and reduce the probability that physics nature pinhole appears in the film, improve the goodness of film product.

In a first aspect, the application discloses a conductive roller for a film coating machine, wherein one part of the roller surface of the conductive roller is an insulating roller surface, the rest of the roller surfaces are conductive roller surfaces, and the roller surfaces are the surfaces of the conductive roller, which are in contact with a film to be coated.

It can be understood that, the conducting roller is in the use, the film can contact with the roll surface of conducting roller, thereby the film can be with liquid in the electrolytic bath on the roll surface of conducting roller, because some of the roll surface of conducting roller in this application is insulating roll surface, all the other roll surfaces are conducting roller surface, consequently the film can communicate with conducting roller surface in order to form the return circuit with the power negative pole, and the film can not form the return circuit with insulating roll surface intercommunication, thereby can not be formed with the metallic coating on the insulating roll surface of conducting roller, and then reduce the degree of difficulty of wasing the conducting roller and reduce the probability that the physics pinhole appears in the film, improve the goodness of coating film.

Further, the roller surface is provided with a concave part, an insulating layer is filled in the concave part, the outer surface of the insulating layer is the insulating roller surface, and the outer surface of the insulating layer is flush with the conductive roller surface.

The conductive roller is convenient to process because the concave part is arranged on the surface of the roller and the insulating layer is filled in the concave part; in addition, the outer surface of the insulating layer is flush with the surface of the conductive roller, so that the whole surface of the conductive roller is smooth, and the smoothness of the film is convenient to ensure.

Further, the recess is an annular groove.

It is understood that the annular recess of the recess can form an annular insulating layer on the roll surface, so that the portion of the film in contact with the annular insulating layer does not have pinhole-like physical defects.

Furthermore, the conductive roller comprises a first conductive roller section, an insulating roller section and a second conductive roller section, the insulating roller section is located between the first conductive roller section and the second conductive roller section, the roller surfaces of the first conductive roller section and the second conductive roller section are both the conductive roller surfaces, and the roller surface of the insulating roller section is the insulating roller surface.

It can be understood that the roller surface of the first conductive roller section and the roller surface of the second conductive roller section are both conductive roller surfaces, the roller surfaces of the insulating roller sections are insulating roller surfaces, pin-hole-shaped physical defects are easy to occur on two side portions of the film, the pin-hole-shaped physical defects are not easy to occur on the middle portion of the film, the two side portions of the film are subjected to edge cutting at the moment, the middle portion is reserved, and therefore the film with the good quality in the middle portion is obtained, namely the film product.

Furthermore, the length of the first conductive roller section is A, and A is more than or equal to 100 mm; and/or the length of the second conductive roller section is B, wherein B is more than or equal to 100 mm.

It can be understood that when the film contacts with the roller surface of the conductive roller, both sides of the film contact with the conductive roller surface, so that both sides of the film are provided with current, and the current on the film is more uniform, thereby being beneficial to forming a uniform metal coating on the film.

Further, the conductive roller has a heat dissipation channel along an axial direction of the conductive roller.

It can be understood that the conductive roller is provided with the heat dissipation channel, so that the conductive roller and the film can be cooled conveniently, the stability of the film can be improved, and the problem of belt breakage of the film due to overhigh temperature can be prevented; meanwhile, the heat dissipation channel is arranged, so that the weight of the conductive roller is reduced, and the light weight of the conductive roller is facilitated.

Furthermore, the wall thickness of the conductive roller is C, and C is larger than or equal to 11 mm.

It can be understood that when the wall thickness of the conductive roller is greater than or equal to 11mm, the wall thickness of the conductive roller can be made as small as possible on the basis of ensuring the structural strength of the conductive roller, so that the conductive roller is beneficial to light weight.

Furthermore, the wall thickness of the conductive part of the insulating roller section is D, and D is more than or equal to 6 mm.

It can be understood that when the wall thickness of the conductive portion of the insulating roller segment is greater than or equal to 6mm, the insulating roller segment can have better structural strength on the basis of reserving enough space for arranging the insulating layer.

Furthermore, the wall thickness of the insulating layer is E, and E is larger than or equal to 3 mm.

It can be understood that when the wall thickness of the insulating layer is greater than or equal to 3mm, the insulating layer is not easy to break due to rolling transmission with the film, so that the structure of the insulating layer is stable, and the insulating layer can stably work.

Further, the insulating layer comprises at least one of EPDM, HEPA, fluororubber, acid and alkali resistant silica gel or chloroprene rubber.

It can be understood that the insulating layer is made of acid-base-resistant and corrosion-resistant materials, and the service life of the conductive roller can be prolonged.

Further, the conductive roller further comprises a first shaft head and a second shaft head, the first shaft head and the second shaft head are respectively connected to two ends of the conductive roller, and the diameters of the first shaft head and the second shaft head are equal and smaller than the diameter of the conductive roller.

It can be understood that the first shaft head and the second shaft head are respectively connected to the two sides of the conductive roller, the conductive roller can be screwed on the film coating machine through the first shaft head and the second shaft head, and the first shaft head and the second shaft head are convenient to drive the conductive roller to rotate.

Furthermore, the number of the insulating roller surfaces and the number of the conductive roller surfaces are multiple, and the insulating roller surfaces and the conductive roller surfaces are alternately arranged.

It can be understood that the plurality of insulating roller surfaces and the plurality of conductive roller surfaces are alternately arranged, so that the film is electrically connected with the conductive roller surfaces at intervals along the axial direction of the conductive roller on the basis of ensuring that the surface of the film is not easy to have pin-hole-shaped physical defects, the current passing through the film is relatively uniform, and the thickness of a metal coating formed on the film is relatively uniform.

In a second aspect, the present application discloses a coating machine, comprising:

an electrolytic cell having a cell entry side and a cell exit side;

the guide roller assembly comprises a groove entering roller set, a turning roller set and a groove outlet roller set, the groove entering roller set is arranged on the groove entering side, the groove outlet roller set is arranged on the groove outlet side, the groove outlet roller set comprises the conductive roller in the first aspect, the turning roller set is arranged in the electrolytic cell, and a film to be plated sequentially passes through the groove entering roller set, the turning roller set and the groove outlet roller set from the groove entering side to be transmitted to the groove outlet side.

It can be understood that, because part of the roll surface of the improved conductive roll is an insulating roll surface, the insulating roll surface can not be coated with metal, so that the difficulty of cleaning the conductive roll can be reduced, the probability of physical pinholes on a film can be reduced, and the film coating machine can stably work.

Further, the coating machine still includes: the electroplating anode is arranged in the electrolytic bath, the anode of the power supply is electrically connected with the electroplating anode, and the cathode of the power supply is electrically connected with the conductive roller.

It will be appreciated that as the film passes over the conductive roller, current will flow in sequence from the positive pole of the power supply, the plating anode, the electrolyte, the film and the conductive roller to the negative pole of the power supply, thereby forming a closed loop to plate the metal cations in the electrolyte onto the surface of the film.

Drawings

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

FIG. 1 is a schematic structural diagram of a coating machine in an embodiment of the present application;

FIG. 2 is a schematic structural view of a conductive roller according to an embodiment of the present application;

FIG. 3 is a schematic view of the structure of the conductive roller of FIG. 2 (the insulating layer is omitted);

FIG. 4 is a schematic view showing the structure of another conductive roller in the embodiment of the present application;

FIG. 5 is a cross-sectional view at F-F of FIG. 4;

FIG. 6 is a schematic view of the structure of the conductive roller of FIG. 5 (the insulating layer is omitted);

FIG. 7 is a schematic structural view of another conductive roller according to an embodiment of the present application;

FIG. 8 is a cross-sectional view taken at G-G of FIG. 7;

fig. 9 is a schematic view of a structure based on the conductive roller in fig. 8 (the insulating layer is omitted);

fig. 10 is a schematic structural view of another conductive roller in the embodiment of the present application.

Reference numerals: 1-electrolytic cell, 11-groove inlet side, 12-groove outlet side, 21-groove inlet roller group, 22-steering roller group, 23-groove outlet roller group, 231-conductive roller, 2311-roller surface, 231 a-conductive roller surface, 231 b-insulating roller surface, 231 c-concave part, 231 d-insulating layer, 2312-first conductive roller section, 2313-insulating roller section, 2314-second conductive roller section, 2315-heat dissipation channel, 2316-first shaft head, 2317-second shaft head, 3-film and 4-electroplating anode.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

Before explaining the technical scheme of the present application, an application scenario related to the embodiment of the present application is explained.

In a film coating machine, a conductive roller generally conveys a film, and simultaneously the conductive roller and the film coating are jointly used as a cathode in electroplating, but when the film is coated with a metal layer, the film can bring liquid in an electrolytic bath onto the roller surface of the conductive roller, so that the roller surface of the conductive roller can also be coated with the metal layer, and when the conductive roller continuously guides the film to convey in the film coating machine, the metal layer on the roller surface of the conductive roller can cause fatal defects such as physical pinholes and the like on the film, and the product quality is seriously influenced. Based on the above problems, the present application improves the conductive roller.

The technical solution of the present application will be further described with reference to the following embodiments and accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a film coating machine in an embodiment of the present application. Specifically, the application discloses coating machine, this coating machine includes: an electrolysis cell 1 and a guide roller assembly. Wherein the electrolytic cell 1 has an inlet side 11 (the left side of the electrolytic cell 1 in fig. 1) and an outlet side 12 (the right side of the electrolytic cell 1 in fig. 1); the guide roller assembly comprises a groove entering roller set 21, a turning roller set 22 and a groove exiting roller set 23, the groove entering roller set 21 is arranged on the groove entering side 11, the groove exiting roller set 23 is arranged on the groove exiting side 12, the groove exiting roller set 23 comprises an improved conductive roller 231, the turning roller set 22 is arranged in the electrolytic cell 1, and the film to be coated 3 is sequentially transmitted to the groove exiting side 12 from the groove entering side 11 through the groove entering roller set 21, the turning roller set 22 and the groove exiting roller set 23.

In the embodiment of the present application, since a part of the roll surface 2311 of the improved conductive roll 231 is the insulating roll surface 231b, and the insulating roll surface 231b is not coated with metal (e.g., copper), the difficulty of cleaning the conductive roll 231 can be reduced, and the probability of physical pinholes occurring in the film 3 can be reduced, so that the coater can stably operate.

It should be noted that, the in-slot roller set 21 may also include a conductive roller 231, so that the conductive rollers 231 are disposed on both the in-slot side 11 and the out-slot side 12, and current can pass through the film 3 on both the in-slot side 11 and the out-slot side 12, so that the current passing through the film 3 is more uniform, and further, the metal plating layer formed on the film 3 is more uniform; it should be noted that the film 3 can be used as a current collector after being plated with a metal plating layer, and can be applied to the field of lithium ion batteries.

In addition, the film plating machine also comprises an electroplating anode 4 and a power supply, wherein the electroplating anode 4 is arranged in the electrolytic bath 1, the anode of the power supply is electrically connected with the electroplating anode 4, and the cathode of the power supply is electrically connected with the conductive roller 231. When the film 3 passes over the conductive roller 231, current flows to the negative electrode of the power supply from the positive electrode of the power supply, the plating anode 4, the electrolyte (not shown), the film 3 and the conductive roller 231 in sequence, so that a closed loop is formed, and metal cations in the electrolyte are plated on the surface of the film 3.

The plating anode 4 may be an anode member such as a titanium blue or an anode plate, and may be connected to the positive electrode of the power supply and used as the plating anode 4 in the electrolytic bath 1, and the kind of the plating anode 4 is not particularly limited in the present application.

It should be noted that when the plating anode 4 is disposed in the electrolytic bath 1, the plating anode 4 needs to be disposed outside both surfaces of the film 3, i.e. the film 3 is to pass between the plating anodes 4 disposed oppositely, so that both surfaces of the film 3 can be uniformly plated with the metal layer.

Further, the following will explain the conductive roller 231 improved in the present application in detail.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a conductive roller 231 according to an embodiment of the present disclosure. Specifically, a part of the roll surface 2311 of the conductive roll 231 is an insulating roll surface 231b, the rest of the roll surfaces is a conductive roll surface 231a, and the roll surface 2311 is the surface of the conductive roll 231 contacting the film 3 to be plated.

In the use process of the conductive roller 231, the film 3 contacts with the roller surface of the conductive roller 231, so that the film 3 brings the liquid in the electrolytic cell onto the roller surface 2311 of the conductive roller 231, and since a part of the roller surface 2311 of the conductive roller 231 in the application is the insulating roller surface 231b and the rest of the roller surfaces are the conductive roller surfaces 231a, the film 3 is communicated with the conductive roller surface 231a to form a loop with the negative electrode of the power supply, and the film 3 is not communicated with the insulating roller surface 231b to form a loop, a metal coating is not formed on the insulating roller surface 231b of the conductive roller 231, thereby reducing the difficulty of cleaning the conductive roller 231, reducing the probability of occurrence of physical pinholes on the film 3, and improving the excellent rate of the coating.

In the embodiment of the present application, please refer to fig. 2 and fig. 3, the roller surface has a concave portion 231c, the concave portion 231c is filled with an insulating layer, the outer surface of the insulating layer is an insulating roller surface 231b, and the outer surface of the insulating layer is flush with the conductive roller surface 231 a.

Wherein, compare in insulating material and conductive roller 231 integrated into one piece's mode of setting, this application is through being equipped with depressed part 231c on conductive roller 231's the roll surface 2311 to pack the insulating layer in depressed part 231c, and then make the surface of insulating layer as the mode of setting of insulating roll surface 231b, the mode of setting of this application is more convenient, is convenient for process conductive roller 231. In addition, the outer surface of the insulating layer is flush with the conductive roller surface 231a, so that the whole roller surface 2311 of the conductive roller 231 is flat, quality problems such as indentation and wrinkles are prevented when the film 3 passes through the roller surface 2311 of the conductive roller 231, and the flatness of the film 3 is ensured conveniently.

Note that, the shape of the recess 231c at the roll surface 2311 may be rectangular, circular, elliptical, or the like, and the present application is not limited thereto; the recessed portion 231c may be formed by a process such as stamping or engraving, and the present application is not limited thereto.

It should be noted that the insulating layer is disposed at the recessed portion 231c, specifically, the insulating layer may be adhered at the recessed portion 231c, and the insulating layer may be further engaged with the recessed portion 231c in an interference fit manner to be clamped at the recessed portion 231c, as long as the insulating layer is firmly disposed in the recessed portion 231c, and the manner of disposing the insulating layer in the recessed portion 231c is not particularly limited in the present application.

In some embodiments, with continued reference to fig. 2, the recessed portion 231c is not an annular groove, so that the roller section at the recessed portion 231c cannot form an annular insulating layer, and thus a structure in which the conductive roller surface 231a and the insulating roller surface 231b are spaced apart from each other is formed on the roller surface of the roller section, although this structure can reduce the difficulty of cleaning the conductive roller 231 and reduce the probability of physical pinholes on the film 3, when the liquid in the electrolytic bath 1 enters the roller surface of the conductive roller 231, a metal coating is formed on the conductive roller surface 231a of the roller section, and a metal coating is not formed on the insulating roller surface 231b of the roller section, so that the roller surface of the roller section becomes uneven, and thus the film 3 passing through the roller surface is prone to wrinkle or even crack.

In other embodiments, referring to fig. 4-6, the recess 231c is an annular groove. The recessed portion 231c is an annular groove, and when the insulating layer 231d is embedded in the recessed portion 231c, that is, the insulating layer 231d is embedded in the annular groove, so that the annular insulating layer 231d can be formed on the roller section having the recessed portion 231c, thereby making the roller surface of the roller section having the recessed portion 231c an annular insulating roller surface 231b, and the annular insulating roller surface 231b is not coated with a metal layer, and when the film 3 passes through the roller surface of the conductive roller 231, the portion of the film 3 contacting the annular insulating roller surface 231b is kept flat.

It should be noted that, forming the annular groove on the roll surface may specifically be turning the roll surface, so as to form the annular groove on the roll surface.

Further, in the axial direction of the conductive roller 231 (the left-right direction in fig. 4), a plurality of annular grooves are arranged at intervals, so that a plurality of annular insulating roller surfaces 231b and a plurality of annular conductive roller surfaces 231a can be formed in the axial direction of the conductive roller 231, and the plurality of annular insulating roller surfaces 231b and the plurality of annular conductive roller surfaces 231a are alternately arranged, and further, on the basis that the surface of the thin film 3 is not easy to generate pinhole-shaped physical defects, the thin film 3 is electrically connected with the conductive roller surfaces 231a at intervals along the axial direction of the conductive roller 231, so that the current passing through the thin film 3 is relatively uniform, and the thickness of the metal plating layer formed on the thin film 3 is relatively uniform.

Referring to fig. 7 to 9, the conductive roller 231 includes a first conductive roller segment 2312, an insulating roller segment 2313 and a second conductive roller segment 2314, the insulating roller segment 2313 is located between the first conductive roller segment 2312 and the second conductive roller segment 2314, the roller surfaces of the first conductive roller segment 2312 and the second conductive roller segment 2314 are conductive roller surfaces 231a, and the roller surface of the insulating roller segment 231 is an insulating roller surface 231 b.

Wherein, since the roll surface of the first conductive roll segment 2312 and the roll surface of the second conductive roll segment 2314 are both the conductive roll surface 231a, and the roll surface of the insulating roll segment 2313 is the insulating roll surface 231b, when the film 3 passes through the conductive roll 231, a metal plating layer is formed on the roll surfaces of the first conductive roll segment 2312 and the second conductive roll segment 2314, but no metal plating layer is formed on the roll surface of the insulating roll segment 2313, so that a pinhole-like physical defect is likely to occur at a portion where the film 3 contacts the first conductive roll segment 2312 and the second conductive roll segment 2314, that is, a pinhole-like physical defect is likely to occur at both side portions of the film 3, and a pinhole-like physical defect is unlikely to occur at a portion where the film 3 contacts the insulating roll segment 2313, that is, that a pinhole-like physical defect is likely to occur at a middle portion of the film 3, and both side portions of the film 3 are trimmed, and the middle portion is retained, thereby obtaining the film 3 with good quality, i.e. the film 3 product.

In addition, since the metal coating may be formed on the roll surfaces of the first and second conductive roll segments 2312 and 2314, but the metal coating may not be formed on the roll surface of the insulating roll segment 2313, so that the diameters of the first and second conductive roll segments 2312 and 2314 may be slightly larger than the diameter of the insulating roll segment 2313, when the film 3 passes through the conductive roll 231, the film 3 may be formed with a trace line at the transition between the first conductive roll segment 2312 and the insulating roll segment 2313, and the trace line may be formed at the transition between the second conductive roll segment 2314 and the insulating roll segment 2313, and the trace line may serve as a cutting reference, which may facilitate the user to perform cutting positioning along the trace line to improve the processing efficiency of the film 3.

Further, the inventors have studied that the length of the conductive roller surface 231a in the axial direction of the conductive roller 231 has an important influence on the formation of the metal plating layer on the film 3.

In some embodiments, the length of the first conductive roller segment 2312 is A, and when A is larger than or equal to 100mm, that is, the contact range of the first conductive roller segment 2312 and the film 3 is more than 100mm, enough current can be ensured to pass through the film 3 to meet the current requirement when the film 3 is electroplated; meanwhile, since the length of the first conductive roller section 2312 is greater than or equal to 100mm, when the film 3 is slightly deviated in the axial direction of the conductive roller 231, the edge portion of the film 3 is still in contact with the roller surface of the first conductive roller section 2312, so that the film 3 is stably communicated with the conductive roller surface 231 a.

It should be noted that a may be 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 170mm, 180mm, 190mm, 200mm, etc., as long as it can ensure enough current to pass through the film 3 to meet the requirement of current for electroplating the film 3, and the length of the first conductive roller segment 231 is not specifically limited herein.

Similarly, in other embodiments, the length of the second conductive roller segment 2314 is B, and when B is greater than or equal to 100mm, that is, the contact range between the second conductive roller segment 2314 and the film 3 is over 100mm, sufficient current can be ensured to pass through the film 3, so as to meet the requirement of the film 3 on current during electroplating; meanwhile, since the length of the second conductive roller section 2314 is greater than or equal to 100mm, when the film 3 is slightly deviated in the axial direction of the conductive roller 231, the edge portion of the film 3 is still in contact with the roller surface of the second conductive roller section 2314, so that the film 3 is stably communicated with the conductive roller surface 231 a.

It should be noted that B may be 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 170mm, 180mm, 190mm, 200mm, etc., as long as enough current can be ensured to pass through the film 3 to meet the current requirement when the film 3 is electroplated, and the length of the second conductive roller segment 2314 is not specifically limited in this application.

In still other embodiments, the first conductive roller segment 2312 has a length A ≧ 100mm, and the second conductive roller segment 2314 has a length B ≧ 100 mm. Thus, when the film 3 contacts with the surface of the conductive roller 231, the current passes through both sides of the film 3, so that the current on the film 3 is relatively uniform, which is beneficial to forming a uniform metal coating on the film 3.

Referring to fig. 10, in order to improve the quality of the film 3, the conductive roller 231 has a heat dissipation channel 2315 along the axial direction of the conductive roller 231. The conductive roller 231 is provided with the heat dissipation channel 2315, so that the conductive roller 231 is conveniently cooled when the conductive roller 231 works, the thin film 3 in contact with the conductive roller 231 is conveniently cooled, the stability of the thin film 3 is improved, and the problem that the thin film 3 is broken due to overhigh temperature is solved; meanwhile, the provision of the heat dissipation passage 2315 also facilitates reduction in weight of the conductive roller 231, facilitating weight reduction of the conductive roller 231.

It should be noted that the conductive roller 231 may further include a ventilation device, which is communicated with the heat dissipation channel 2315 and continuously supplies air into the heat dissipation channel 2315, so as to cool the conductive roller 231.

Referring back to FIG. 9, the conductive roller 231 has a wall thickness of C ≧ 11 mm. When the wall thickness of the conductive roller 231 is greater than or equal to 11mm, the wall thickness of the conductive roller 231 can be made as small as possible on the basis of ensuring the structural strength of the conductive roller 231, so that the conductive roller 231 is light in weight.

The thickness of the conductive roller 231 may be 11mm, 11.5mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, 15mm, 15.5mm, 16mm, 16.5mm, 17mm, or the like, and the thickness of the conductive roller 231 is not particularly limited herein.

Further, the wall thickness of the conductive portion of the insulating roller segment 2313 is D, D ≧ 6 mm. Wherein, when the wall thickness of the conductive portion of the insulating roller segment 2313 is greater than or equal to 6mm, the insulating roller segment 2313 may have better structural strength on the basis of reserving a sufficient space for disposing the insulating layer 231 d.

It should be noted that the insulating roller segment 2313 is formed by a conductive portion and an insulating layer 231d disposed on the peripheral wall of the conductive portion, and the wall thickness of the conductive portion of the insulating roller segment 2313 may be 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, etc., as long as enough space for disposing the insulating layer 231d is reserved and the insulating roller segment 2313 has good structural strength, and the wall thickness of the conductive portion of the insulating roller segment 2313 is not particularly limited in this application.

Furthermore, the thickness of the insulating layer 231d is E, and E is equal to or greater than 3 mm. When the thickness of the insulating layer 231d is equal to or greater than 3mm, the insulating layer 231d is less likely to be broken due to rolling transfer with the film 3, so that the structure of the insulating layer 231d can be stabilized, and the insulating layer 231d can operate stably.

The insulating layer 231d may have a wall thickness of 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, or the like, and the wall thickness of the insulating layer 231d is not particularly limited in the present application.

Further, since the electrolyte is generally an alkaline or strongly acidic liquid, the insulating layer 231d needs to be made of an acid-base-resistant and corrosion-resistant material. In the embodiment of the present application, the insulating layer 231d is preferably at least one of EPDM (Ethylene Propylene Diene Monomer), hypalon, fluororubber, acid and alkali resistant silicone, or neoprene. It should be noted that, what acid-base-resistant and corrosion-resistant material is selected specifically should be selected according to the actual electrolyte.

In the embodiment of the present application, the fixing of the conductive roller 231 is also improved.

Referring to fig. 10, the conductive roller 231 further includes a first shaft head 2316 and a second shaft head 2317, the first shaft head 2316 and the second shaft head 2317 are respectively connected to two ends of the conductive roller 231, and the diameters of the first shaft head 2316 and the second shaft head 2317 are equal and smaller than the diameter of the conductive roller 231.

The two sides of the conductive roller 231 are respectively connected with a first shaft head 2316 and a second shaft head 2317, the conductive roller 231 can be rotatably connected to the film plating machine through the first shaft head 2316 and the second shaft head 2317, and the first shaft head 2316 and the second shaft head 2317 can be conveniently used for driving the conductive roller 231 to rotate. Secondly, the diameters of the first shaft head 2316 and the second shaft head 2317 are equal, the universality of the first shaft head 2316 and the second shaft head 2317 can be realized, and the manufacturing cost of the shaft heads is reduced. In addition, since the film 3 needs to contact the roll surface of the conductive roll 231, the diameters of the first shaft head 2316 and the second shaft head 2317 are smaller than the diameter of the conductive roll 231, so that the film 3 can be prevented from interfering with the first shaft head 2316 or the second shaft head 2317 and affecting the transmission of the film 3 by the conductive roll 231.

In some embodiments, the first and second bosses 2316, 2317 are separate from the conductive roller 231, such as by welding the first and second bosses 2316, 2317 to opposite ends of the conductive roller 231. The first shaft head 2316, the second shaft head 2317 and the conductive roller 231 are of split structures, and the diameters of the first shaft head 2316 and the second shaft head 2317 are equal, so that the first shaft head 2316 and the second shaft head 2317 can be produced in batches, and the conductive roller 231 can be produced independently in batches, so that the offline production efficiency can be improved.

In other embodiments, the first and second bosses 2316, 2317 are integral with the conductive roller 231, such as by turning the entire roller, so that the first and second bosses 2316, 2317 are integral with the conductive roller 231, and thus the conductive roller 231 has better integrity and structural stability.

It should be noted that, when the first shaft head 2316 and the second shaft head 2317 are respectively connected to two ends of the conductive roller 231, and the conductive roller 231 has the heat dissipation channel 2315, the first shaft head 2316 and the second shaft head 2317 should be hollow, so that the conductive roller 231 is hollow as a whole, and heat dissipation of the conductive roller 231 is facilitated.

The above embodiment of the utility model discloses a conductive roller for a film plating machine and a detailed description thereof, and a specific example is applied in the description to explain the principle and the implementation of the utility model, and the description of the above embodiment is only used to help understand the utility model and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (12)

1. The conductive roller for the film coating machine is characterized in that one part of the roller surface of the conductive roller for the film coating machine is an insulating roller surface, the rest of the roller surfaces are conductive roller surfaces, and the roller surfaces are the surfaces of the conductive roller for the film coating machine, which are contacted with a film to be coated.

2. The conductive roller for coating machine as claimed in claim 1, wherein the roller surface has a recess filled with an insulating layer, the outer surface of the insulating layer is the insulating roller surface, and the outer surface of the insulating layer is flush with the conductive roller surface.

3. The conductive roller for coating machine as claimed in claim 2, wherein the recess is an annular groove.

4. The conductive roller for coating machine as claimed in any one of claims 1 to 3, wherein the conductive roller for coating machine comprises a first conductive roller section, an insulating roller section and a second conductive roller section, the insulating roller section is located between the first conductive roller section and the second conductive roller section, the roller surfaces of the first conductive roller section and the second conductive roller section are the conductive roller surfaces, and the roller surface of the insulating roller section is the insulating roller surface.

5. The conductive roller for coating machine as claimed in claim 4, wherein the length of the first conductive roller section is A, A is more than or equal to 100 mm; and/or the length of the second conductive roller section is B, wherein B is more than or equal to 100 mm.

6. The conductive roller for coating machine as claimed in claim 4, wherein the conductive roller for coating machine has a heat dissipation channel along an axial direction of the conductive roller for coating machine.

7. The conductive roller for coating machine as claimed in claim 6, wherein the conductive roller for coating machine has a wall thickness C which is greater than or equal to 11 mm.

8. The conductive roller for coating machine as claimed in claim 7, wherein the wall thickness of the conductive part of the insulating roller section is D, D is more than or equal to 6 mm.

9. The conductive roller for coating machine as claimed in claim 2 or 3, wherein the insulating layer has a wall thickness E of 3mm or more.

10. The conductive roller for coating machine as claimed in any one of claims 1 to 3, wherein there are a plurality of said insulating roller surfaces and a plurality of said conductive roller surfaces, and a plurality of said insulating roller surfaces and a plurality of said conductive roller surfaces are alternately arranged.

11. A coating machine is characterized by comprising:

an electrolytic cell having a cell entry side and a cell exit side;

the guide roller assembly comprises a groove inlet roller set, a steering roller set and a groove outlet roller set, the groove inlet roller set is arranged on the groove inlet side, the groove outlet roller set is arranged on the groove outlet side, the groove outlet roller set comprises a plurality of conductive rollers for the film coating machine according to any one of claims 1 to 10, the steering roller set is arranged in the electrolytic cell, and a film to be coated is sequentially transmitted to the groove outlet side from the groove inlet side through the groove inlet roller set, the steering roller set and the groove outlet roller set.

12. The coater of claim 11 wherein the coater further comprises: the electroplating anode is arranged in the electrolytic bath, the anode of the power supply is electrically connected with the electroplating anode, and the cathode of the power supply is electrically connected with the conductive roller for the film plating machine.

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