CN113463171A

CN113463171A - A electrically conductive clamp and coating machine for coating machine

Info

Publication number: CN113463171A
Application number: CN202110739801.XA
Authority: CN
Inventors: 张喜冲; 吴玉源; 赵倩; 张芹; 蓝金花
Original assignee: Xiamen Haichen New Energy Technology Co Ltd
Current assignee: Xiamen Haichen New Energy Technology Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-10-01
Anticipated expiration: 2041-06-30
Also published as: CN113463171B

Abstract

The invention discloses a conductive clamp for a film coating machine and the film coating machine, wherein the conductive clamp comprises a first clamping arm, a second clamping arm and a rocker assembly, and the first clamping arm comprises a first clamping surface; the second clamping arm comprises a second clamping surface, and the first clamping surface and the second clamping surface are arranged oppositely and are conductive surfaces; the rocker assembly comprises at least two rockers which are parallel to each other, one end of each rocker is hinged with the first clamping arm, and the other end of each rocker is hinged with the second clamping arm; the first clamping arm, the second clamping arm and the at least two rocking rods form a plane link mechanism, one of the first clamping arm and the second clamping arm can swing back and forth relative to the other so that the conductive clamp is in a clamping state or an opening state, and when the conductive clamp is in the clamping state, the first clamping surface is attached to the second clamping surface. Therefore, the service life of the conductive clamp can be effectively prolonged, and the cost is reduced.

Description

A electrically conductive clamp and coating machine for coating machine

Technical Field

The application relates to the field of electroplating, in particular to a conductive clamp for a film plating machine and the film plating machine.

Background

At present, lithium ion batteries are widely used, and have the advantages of large capacity, small volume, light weight and the like.

The current collector refers to a structure for collecting current, and in a lithium ion battery, the current collector mainly refers to a base metal, such as a copper foil, an aluminum foil and the like, for attaching an active material to a positive electrode or a negative electrode of the battery. The function of the battery is mainly to collect the current generated by the active materials of the battery so as to form larger current to be output. When the current collector is manufactured, a thicker metal plating layer is usually formed on the conductive base film in an electroplating mode so as to ensure the conductivity of the current collector. The conductive base film can be electroplated by a film plating machine.

When a film coating machine is used for coating, the conductive base film can be clamped by the conductive clamp so as to be immersed into the plating solution for electroplating. However, the conductive clamp can be frequently closed and clamped or opened to loosen the conductive base film in the electroplating process, the current film plating machine mostly adopts the conductive clamp provided with the spring to clamp the conductive base film for film plating, the conductive clamp needs to be closed or clamped by the spring, and the spring is easy to lose efficacy after being used for a long time, so that the conductive clamp needs to be regularly maintained and replaced, the electroplating efficiency is influenced, and the cost is increased.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a conductive clamp for a film plating machine and the film plating machine, which can effectively prolong the service life of the conductive clamp.

In order to achieve the above object, in a first aspect, the present invention discloses a conductive clip for a film plating machine, comprising: the device comprises a first clamping arm, a second clamping arm and a rocker assembly, wherein the first clamping arm comprises a first clamping surface; the second clamping arm comprises a second clamping surface, and the first clamping surface and the second clamping surface are arranged oppositely and are conductive surfaces; the rocker assembly comprises at least two rockers which are parallel to each other, one end of each rocker is hinged with the first clamping arm, and the other end of each rocker is hinged with the second clamping arm; the first clamping arm, the second clamping arm and the at least two rocking rods form a plane link mechanism, one of the first clamping arm and the second clamping arm can swing back and forth relative to the other so that the conductive clamp is in a clamping state or an opening state, and when the conductive clamp is in the clamping state, the first clamping surface is attached to the second clamping surface.

The invention provides a conductive clamp for a film plating machine, which is a four-bar plane link mechanism consisting of a first clamping arm, a second clamping arm and at least two rocking bars, and can enable one of the first clamping arm and the second clamping arm to swing to and fro relative to the other clamping arm so as to enable the conductive clamp to be in a clamping state or an opening state. In addition, first centre gripping arm, second centre gripping arm and rocker all can adopt the rigidity piece, and life is longer, consequently, can effectively prolong the life of electrically conductive clamp.

The first clamping arm comprises a first clamping surface, the second clamping arm comprises a second clamping surface, and the first clamping surface and the second clamping surface are oppositely arranged and are conductive surfaces. Therefore, when the conductive clamp is in a clamping state, the first clamping face and the second clamping face can be attached and conducted, and the first clamping face and the second clamping face are used for being connected with the power supply cathode, so that the conductive base film can be communicated with the power supply cathode when the conductive base film is clamped by the first clamping face and the second clamping face, and the possibility is provided for smooth electroplating of the conductive base film.

In a possible implementation manner of the first aspect, the rocker assembly includes a first rocker and a second rocker that are equal in length, the first clamping arm includes a first connecting rod and a first clamping portion disposed at one end of the first connecting rod, a first clamping surface is disposed on the first clamping portion, the second clamping arm includes a second connecting rod and a second clamping portion disposed at one end of the second connecting rod, the second clamping surface is disposed on the second clamping portion, the first connecting rod is parallel to the second connecting rod, one end of the first rocker is hinged to the first connecting rod, the other end of the first rocker is hinged to the second connecting rod, one end of the second rocker is hinged to the first connecting rod, the other end of the second rocker is hinged to the second connecting rod, and the first connecting rod, the second connecting rod, the first rocker and the second rocker constitute a parallelogram linkage. Therefore, the first connecting rod can swing relative to the second connecting rod, so that the first clamping part is driven to swing relative to the second clamping part, the parallelogram connecting rod mechanism is the simplest plane connecting rod structure, the manufacturing process is mature, the structure is simple, and the manufacturing is easy.

In a possible implementation manner of the first aspect, the first connecting rod and the second connecting rod are both arranged along a vertical direction, the first clamping portion is located at a lower end of the first connecting rod and extends along a horizontal direction, the second clamping portion is located at a lower end of the second connecting rod and extends along a horizontal direction, the second clamping portion is located above the first clamping portion, the first clamping surface is arranged on an upper surface of the first clamping portion, and the second clamping surface is arranged on a lower surface of the second clamping portion. Therefore, the second connecting rod can move downwards relative to the first connecting rod under the action of gravity, so that the second clamping part can move downwards relative to the first clamping part, the first clamping surface is attached to the second clamping surface, the conductive clamp is clamped, and the clamping direction is along the horizontal direction.

In a possible implementation manner of the first aspect, the first connecting rod is a straight rod, the second connecting rod includes a first vertical section, a bending section and a second vertical section, the first vertical section, the bending section and the second vertical section are sequentially arranged, a space is formed between the first vertical section and the upper section of the first connecting rod, the two rocking rods are respectively connected between the first vertical section and the upper section of the first connecting rod, the bending section is bent and extended from the lower end of the first vertical section to the direction close to the first connecting rod, the second vertical section is bent and extended from the end, close to the first connecting rod, of the bending section, and the second clamping portion is arranged at the lower end of the second vertical section. The structure of the first connecting rod and the second connecting rod can enable the second vertical section to be closer to the first connecting rod, and space is saved.

In a possible implementation manner of the first aspect, a first magnetic part is disposed on the first connecting rod, a second magnetic part is disposed on the second connecting rod, the first magnetic part and the second magnetic part are disposed opposite to each other in a movement direction of the second connecting rod, and a magnetic force for keeping the conductive clip in a clamping state is formed between the first magnetic part and the second magnetic part. Therefore, the characteristic that like magnetic poles repel and unlike magnetic poles attract between the two magnetic pieces is utilized, the second clamping arm can be close to the first clamping arm, and the clamping force of the conductive clamp can be increased.

In a possible implementation manner of the first aspect, the first magnetic member is located below the second magnetic member, and the first magnetic member is opposite to the second magnetic member in opposite polarity. The first magnetic part and the second magnetic part are mutually attracted, so that the second clamping arm moves downwards relative to the first clamping arm, and the purpose of increasing the clamping force of the conductive clamp can be realized.

In a possible implementation manner of the first aspect, the first magnetic member and the second magnetic member are both disposed in the spacing space, so that the space is effectively saved.

In a possible implementation manner of the first aspect, a first protrusion is disposed on one side, facing the space, of the upper section of the first connecting rod, a first magnetic part is disposed on an upper surface of the first protrusion, a second protrusion is disposed on one side, facing the space, of the first vertical section, the second protrusion is located above the first protrusion, and a second magnetic part is disposed on a lower surface of the second protrusion. Above-mentioned first protruding and the bellied setting of second, simple structure not only easily realizes, can make the simple to operate of first magnetic part and second magnetic part moreover.

In a possible implementation manner of the first aspect, the width of the first clamping portion is greater than the width of the first link, and the width of the second clamping portion is greater than the width of the second link. The design mode of above-mentioned clamping part not only can increase the area of contact of clamping face and electrically conductive base film to make the electric current of the electrically conductive base film of flowing through increase, improved electroplating efficiency, and this kind of structure can also save material, the effectual weight that electrically conducts the clamp that has alleviateed.

In a possible implementation manner of the first aspect, a rotatable guide wheel is arranged on a side of the second clamping arm far away from the first clamping arm. Therefore, the guide wheel can be in rolling fit with other parts, the second clamping arm can move relative to the first clamping arm, the conductive clamp can be closed or opened, and the abrasion of the parts can be effectively reduced through rolling friction.

In a possible implementation manner of the first aspect, a first sealing portion is disposed on an upper surface of the first clamping portion around the first clamping surface, and a second sealing portion is disposed on a lower surface of the second clamping portion around the second clamping surface, when the conductive clip is in the clamping state, the first clamping surface is in contact conduction with the second clamping surface, and the first sealing portion is matched with the second sealing portion to seal the first clamping surface and the second clamping surface. Set up first sealing and second sealing at the clamping face department of electrically conductive clamp, when making electrically conductive clamp centre gripping conductive base film dip plating bath, can make the plating bath keep off outside the clamping face of electrically conductive clamp by the sealing, carried out effectual protection to electrically conductive first clamping face and the second clamping face of pressing from both sides, prevented that first clamping face and second clamping face from being coppered, improved the life of electrically conductive clamp.

In a possible implementation manner of the first aspect, the surface of the conductive clip is configured to: except the first clamping surface and the second clamping surface, the rest surfaces which can be immersed in the plating solution during plating are insulating surfaces. Therefore, the surface of the conductive clip can not conduct electricity after the conductive clip is immersed in the plating solution, so that the current passing through the conductive base film can not be reduced, and the reduction of the electroplating efficiency is prevented.

In a possible implementation manner of the first aspect, the first clamping arm and the second clamping arm are both made of a conductive metal material, the partial surfaces of the first clamping arm and the second clamping arm, which can be immersed in the plating solution, are wrapped with insulating sleeves, and the insulating sleeves are arranged to avoid the first clamping surface and the second clamping surface. The insulating sleeve is arranged to protect the conductive clamp body, so that the conductive clamp is prevented from contacting with the plating solution, the manufacturing process of the insulating sleeve is simple, and the conductive clamp is convenient to disassemble and replace.

In a possible implementation manner of the first aspect, the first sealing portion is a first sealing ring disposed around the first clamping surface, the first sealing ring at least partially protrudes out of the first clamping surface, the second sealing portion is a first annular sealing groove disposed around the second clamping surface, and when the conductive clip is in the clamping state, a portion of the first sealing ring protruding out of the first clamping surface is fitted and clamped into the first annular sealing groove. The conducting clamp clamping surface is sealed in a mode of combining the sealing ring and the sealing groove, and the structure is simple and the sealing effect is good.

In a possible implementation manner of the first aspect, a second sealing ring is further arranged on the lower surface of the second clamping portion around the periphery of the first annular sealing groove, part of the second sealing ring protrudes out of the second clamping surface, a second annular sealing groove is further arranged on the upper surface of the first clamping portion around the periphery of the first sealing ring, and when the conductive clamp is in the clamping state, the part of the second sealing ring protruding out of the second clamping surface is matched and clamped into the second annular sealing groove. This makes it possible to form a double seal around the clamping surface, thereby further improving the sealing effect.

In a second aspect, the invention also provides a film coating machine, which comprises the conductive clamp in the first aspect.

According to the film coating machine provided by the invention, the conductive clamp in the first aspect is adopted, so that the service life of the conductive clamp is prolonged in the film coating process, frequent maintenance and replacement of the conductive clamp are avoided, and the cost is reduced. And the first clamping surface and the second clamping surface of the conductive clamp can be prevented from being plated with copper, so that the film coating efficiency of the film coating machine is improved.

In a possible implementation manner of the second aspect, the coater includes: the plating solution tank comprises a first side wall and a second side wall, wherein the first side wall and the second side wall extend along a first horizontal direction and are arranged oppositely; the first conveying mechanism comprises a first conveying belt and a plurality of first conductive clips, wherein the first conveying belt is arranged close to the first side wall and extends along a first horizontal direction; the second conveying mechanism comprises a second conveying belt which is arranged close to the second side wall and extends along the first horizontal direction, and a plurality of second conductive clips which are arranged on the second conveying belt and are arranged along the first horizontal direction; the first conductive clip and the second conductive clip are respectively used for clamping two opposite side edges of a horizontally placed conductive base film, and the first conductive clip and the second conductive clip are conductive clips in the first aspect. The film coating machine adopts a horizontal film-moving mode, and when coating, the whole conductive base film clamped by the first conductive clamp and the second conductive clamp is positioned in the plating solution tank, so that the phenomenon of electric breakdown caused by the reduction of the cooling effect when the part of the conductive base film is positioned outside the plating solution tank can be avoided.

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 perspective view of a conductive clip provided with a four-bar planar linkage mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a conductive clip with a multi-bar planar linkage mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic left side view of a conductive clip with a parallelogram linkage mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a conductive clip provided with a first connecting rod and a second connecting rod both of which are straight rods according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a conductive clip according to an embodiment of the present invention, in which a second connecting rod is provided with a bent portion;

FIG. 6 is a schematic structural diagram of a magnetic member with opposite poles arranged on a conductive clip according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a magnetic member with a conductive clip disposed in a homopolar opposition according to an embodiment of the invention;

FIG. 8 is a schematic view of a structure of a conductive clip with a magnetic member not in a space

Fig. 9 is a schematic perspective view illustrating an overall increased width of a first clamping arm and a second clamping arm of a conductive clip according to an embodiment of the present invention;

fig. 10 is a schematic perspective view of a conductive clip provided with a first clamping portion and a second clamping portion with a partially increased width according to an embodiment of the present invention;

FIG. 11 is a schematic view of a normally closed conductive clip;

FIG. 12 is a schematic view of a normally closed conductive clip on a lift block;

FIG. 13 is a schematic view of a normally closed conductive clamp in and out of a lift block;

FIG. 14 is a schematic structural diagram of a sealing portion of a conductive clip according to an embodiment of the present invention;

FIG. 15 is an enlarged view taken at A in FIG. 14;

FIG. 16 is a cross-sectional view A-A of the conductive clip of FIG. 14 with a first seal ring disposed;

FIG. 17 is a schematic view of the conductive clip of FIG. 14 with a second clamping surface of the first annular seal groove;

FIG. 18 is a schematic view of the second clamping surface of the conductive clip of FIG. 14 provided with a double layer sealing structure;

FIG. 19 is a cross-sectional view A-A of the conductive clip of FIG. 14 provided with a double layer sealing structure;

fig. 20 is a top view of a coater provided in an embodiment of the present invention.

Description of reference numerals:

1-a conductive clip; 11-a first gripper arm; 111-a first link; 112-a first clamping portion; 1121-first clamping surface; 113-a first seal; 1131 — first seal ring; 1132 — a second annular seal groove; 114-a first protrusion; 12-a second gripper arm; 121-a second link; 1211 — a first vertical section; 1212-bending section; 1213-second vertical section; 122-a second clamping portion; 1221-a second clamping surface; 123-a second seal; 1231-a first annular seal groove; 1232 — second seal ring; 124-a second projection; 13-a rocker assembly; 131-a first rocker; 132-a second rocker; 14-a first magnetic member; 15-a second magnetic element; 16-a guide wheel; 2-lifting the block; 3-coating machine; 31-plating bath; 311-a first side wall; 312-a second sidewall; 32-a first transport mechanism; 321-a first conveyor belt; 322-a first conductive clip; 33-a second transport mechanism; 331-a second conveyor belt; 332-a second conductive clip; 4-conductive base film.

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", "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 invention 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.

Electroplating is the process of plating a layer of other metal or alloy on the surface of some plated parts by using the principle of electrolysis. Specifically, a plating metal or other insoluble materials is used as an anode, a workpiece to be plated is used as a cathode, and a liquid containing plating metal ions is used as a plating solution. As in the electroplating process of the conductive base film, the conductive base film serves as a cathode. Before electroplating, the anode and the cathode are electrified, the current forms a loop among the anode, the plating solution and the cathode, and cations of plating metal are reduced on the surface of a workpiece to be plated to form a plating layer in the electroplating process.

In a process of manufacturing a current collector of a lithium ion battery, a thick metal plating layer is generally formed on a conductive base film using an electroplating process to manufacture the current collector. The electroplating process can be specifically completed by using a film coating machine.

The film plating machine comprises a plating solution tank and a conductive base film conveying device, wherein plating solution is filled in the plating solution tank, and the conductive base film conveying device is used for conveying the conductive base film into the plating solution tank. Specifically, electrically conductive base film conveyer includes the conveyer belt and electrically conducts the clamp, and electrically conductive clamp is used for the electrically conductive base film of centre gripping and to the electrically conductive base film circular telegram, and the conveyer belt is used for driving electrically conductive clamp and removes to make electrically conductive base film get into the plating bath inslot.

In the electroplating process, the conductive clamp needs to frequently clamp the conductive base film to enter the plating bath tank, and the clamping of the conductive base film is loosened when the conductive base film leaves the plating bath tank, so that the conductive base film is driven to enter and exit the plating bath tank. Therefore, the conductive clip needs to be regularly maintained and replaced, which not only affects the electroplating efficiency, but also increases the cost of manpower and material resources.

In view of this, the embodiment of the invention provides a conductive clip for a film plating machine and a film plating machine, which can effectively prolong the service life of the conductive clip, thereby saving the cost.

The conductive clip and coater are described in detail below with specific examples:

example one

The embodiment of the present application provides a conductive clip for a film plating machine, as shown in fig. 1 and 2, including: a first clamp arm 11, a second clamp arm 12, and a rocker assembly 13. The rocker assembly 13 comprises at least two rockers parallel to each other, one end of each rocker is hinged to the first clamping arm 11, and the other end of each rocker is hinged to the second clamping arm 12. Thereby, the first clamp arm 11, the second clamp arm 12 and the at least two rockers constitute a planar linkage.

The rocker assembly 13 may be two rockers parallel to each other or more than two rockers parallel to each other. Therefore, when the rocker assembly 13 is two rockers parallel to each other, the first clamping arm 11, the second clamping arm 12 and the two rockers can form a four-bar planar linkage mechanism, the number of the rockers is minimum, and one of the first clamping arm 11 and the second clamping arm 12 can be reciprocally swung relative to the other to enable the conductive clamp 1 to be in a clamping state or an opening state; when the rocker assembly 13 is two or more parallel rockers, the first holding arm 11, the second holding arm 12, and the two or more rockers can form a multi-lever planar linkage, and the first holding arm 11 can also be reciprocated relative to the second holding arm 12, so that the conductive clip 1 is in a holding state or an open state, but the number of the rockers is large, which increases the cost. In addition, the first clamping arm 11, the second clamping arm 12 and the rocker can be rigid pieces, so that the service life is long, and the service life of the conductive clamp 1 can be effectively prolonged.

As shown in fig. 1, the first clamping arm 11 includes a first clamping surface 1121, the second clamping arm 12 includes a second clamping surface 1221, and the first clamping surface 1121 and the second clamping surface 1221 are disposed opposite to each other and are conductive surfaces. Therefore, when the conductive clip 1 is in the clipping state, the first clipping surface 1121 and the second clipping surface 1221 can be attached to each other and conducted, and because the first clipping surface 1121 and the second clipping surface 1221 are used for connecting a power supply cathode, when the first clipping surface 1121 and the second clipping surface 1221 clip the conductive base film 4, the conductive base film 4 can be communicated with the power supply cathode, thereby providing possibility for smooth electroplating of the conductive base film 4.

It should be noted that, as shown in fig. 1, when the rocker assembly 13 adopts two rockers parallel to each other, the rocker assembly 13 includes a first rocker 131 and a second rocker 132 having the same length, the first clamping arm 11 includes a first connecting rod 111 and a first clamping portion 112 disposed at one end of the first connecting rod 111, the first clamping surface 1121 is disposed on the first clamping portion 112, the second clamping arm 12 includes a second connecting rod 121 and a second clamping portion 122 disposed at one end of the second connecting rod 121, the second clamping surface 1221 is disposed on the second clamping portion 122, the first connecting rod 111 is parallel to the second connecting rod 121, one end of the first rocker 131 is hinged to the first connecting rod 111, the other end of the first rocker 131 is hinged to the second connecting rod 121, one end of the second rocker 132 is hinged to the first connecting rod 111, and the other end of the second rocker is hinged to the second connecting rod 121. Therefore, the first connecting rod 111, the second connecting rod 121, the first rocking bar 131 and the second rocking bar 132 form a parallelogram connecting rod mechanism, the parallelogram connecting rod mechanism is the simplest planar connecting rod structure, the manufacturing process is mature, the structure is simple, and the parallelogram connecting rod mechanism is easy to manufacture.

In order to realize the horizontal mold walking of the conductive base film 4, firstly, the conductive base film 4 can be horizontally placed, that is, the film surface of the conductive base film 4 is placed parallel to the ground, and at this time, in order to clamp the conductive base film 4 and transmit along the film feeding direction, the conductive clamp 1 with the horizontal clamping surface is required to horizontally clamp two side edges of the conductive base film 4.

Therefore, as shown in fig. 3, the first link 111 and the second link 121 are both disposed along a vertical direction, the first clamping portion 112 is located at the lower end of the first link 111 and extends along a horizontal direction (i.e., perpendicular to the film feeding direction of the conductive base film 4), the second clamping portion 122 is located at the lower end of the second link 121 and extends along the horizontal direction, the second clamping portion 122 is located above the first clamping portion 112, the first clamping surface 1121 is disposed on the upper surface of the first clamping portion 112, and the second clamping surface 1221 is disposed on the lower surface of the second clamping portion 122. Accordingly, the second link 121 can move downward relative to the first link 111 under the action of gravity, so that the second clamping portion 122 can move downward relative to the first clamping portion 112, the first clamping surface 1121 and the second clamping surface 1221 can be attached to each other, the clamping of the conductive clip 1 is realized, and the clamping direction is along the horizontal direction.

Specifically, the first connecting rod 111 and the second connecting rod 121 may have various structural forms, and as shown in fig. 4, may have a straight rod structure. Specifically, the first connecting rod 111 and the second connecting rod 121 are straight rods, an interval space is formed between the first connecting rod 111 and the second connecting rod 121, and the two rocking bars are respectively connected between the upper section of the first connecting rod 111 and the upper section of the second connecting rod 121.

As shown in fig. 5, the first link 111 and the second link 121 may also adopt such a configuration. Specifically, the first link 111 is a straight rod, the second link 121 includes a first vertical section 1211, a bending section 1212 and a second vertical section 1213, which are sequentially disposed, an interval space is formed between the first vertical section 1211 and the upper section of the first link 111, and the two rockers are respectively connected between the first vertical section 1211 and the upper section of the first link 111, the bending section 1212 is bent and extended from the lower end of the first vertical section 1211 to a direction close to the first link 111, that is, the bending section 1212 may be bent in a direction perpendicular to the first link 111, and may be bent in a direction (not perpendicular) inclined with respect to the first link 111, the second vertical section 1213 is downwardly extended from one end of the bending section 1212 close to the first link 111, and the second clamping portion 122 is disposed at the lower end of the second vertical section 1213. Because the length of the second clamping portion 122 is less than the length of the first clamping portion 112, the length of the clamping surface is dependent on the length of the second clamping surface 1221 on the second clamping portion 122. Thus, when the length of the clamping surface is constant, that is, the length of the second clamping surface 1221 is constant, that is, the length L of the second clamping portion 122 is constant, the length of the first clamping portion 112 shown in fig. 5 may be L + L1, L1 is the distance between the second vertical section 1213 and the first link 111, and the length of the first clamping portion 112 shown in fig. 4 is L + L1+ L2, and L2 is the projection length of the bent section 1212 with respect to the clamping surface in the Z direction. It is apparent that the length of the first clamping portion 112 shown in fig. 4 is greater than the length of the first clamping portion 112 shown in fig. 5. Therefore, the structure of the first link 111 and the second link 121 shown in fig. 5 is more space-saving.

In the embodiment shown in fig. 5, the clamping force of the conductive clip 1 is determined by the gravity of the second clamping arm 12, and the clamping force is increased as the gravity of the second clamping arm 12 is increased, so that in order to make the conductive clip 1 have a large clamping force even when the weight of the second clamping arm 12 is light, magnetic members may be provided on the first clamping arm 11 and the second clamping arm 12, respectively, and the clamping force of the conductive clip 1 may be increased by the interaction between the magnetic members.

Specifically, as shown in fig. 6 and 7, a first magnetic member 14 may be disposed on the first link 111, a second magnetic member 15 may be disposed on the second link 121, and the first magnetic member 14 and the second magnetic member 15 may be disposed opposite to each other in the moving direction of the second link 121. Because the magnets have the characteristic that like magnetic poles repel each other and unlike magnetic poles attract each other. Therefore, when the first magnetic member 14 is located below the second magnetic member 15, the opposite poles of the two magnetic members can be opposite, and the first magnetic member 14 attracts the second magnetic member 15 to approach, so that the second clamping arm 12 can move downwards relative to the first clamping arm 11, and the clamping force of the conductive clamp 1 is increased; accordingly, when the first magnetic member 14 is located above the second magnetic member 15, the two magnetic members can be opposite in the same polarity, the first magnetic member 14 can repel the second magnetic member 15 away, and the second clamping arm 12 can be moved downward relative to the first clamping arm 11, so that the clamping force of the conductive clamp 1 can be increased.

It should be noted that the first magnetic member 14 and the second magnetic member 15 may be disposed at any suitable position on the first connecting rod 111 and the second connecting rod 121. As shown in fig. 8, the first magnetic member 14 may be disposed on a side of the upper section of the first connecting rod 111 away from the first vertical rod, and the corresponding second magnetic member 15 may be disposed on a side of the first vertical rod close to the first connecting rod 111. As shown in fig. 6 and 7, the first magnetic member 14 and the second magnetic member 15 may also be disposed in the space formed between the first vertical section 1211 and the upper section of the first link 111, which can effectively save space. Further, in order to facilitate the installation of the first and second

magnetic members

14 and 15, a first protrusion 114 is further provided at a side of the upper section of the first link 111 facing the space, and a second protrusion 124 is further provided at a side of the first vertical section 1211 of the second link 121 facing the space. Specifically, as shown in fig. 6, when the first protrusion 114 is located below the second protrusion 124, the first magnetic member 14 is disposed on the upper surface of the first protrusion 114, and the second magnetic member 15 is disposed on the lower surface of the second protrusion 124, that is, the first magnetic member 14 is located below the second magnetic member 15, and at this time, the first magnetic member 14 and the second magnetic member 15 are opposite in polarity. As shown in fig. 7, when the first protrusion 114 is located above the second protrusion 124, the lower surface of the first protrusion 114 is provided with the first magnetic member 14, and the upper surface of the second protrusion 124 is provided with the second magnetic member 15, that is, the first magnetic member 14 is located above the second magnetic member 15, and at this time, the same poles of the first magnetic member 14 and the second magnetic member 15 repel each other. Both ways can achieve the purpose of improving the clamping force of the conductive clamp 1 by utilizing the interaction of the two magnetic parts.

In the electroplating, in order to improve the electroplating efficiency, a method of increasing the current flowing through the conductive base film 4 may be adopted. Thus, the current flowing through the conductive base film 4 can be increased by increasing the contact area between the sandwiching surface of the conductive clip 1 and the conductive base film 4. There are various ways to increase the contact area between the holding surface of the conductive clip 1 and the conductive base film 4. As shown in fig. 9, the widths of the first and

second clamp arms

11 and 12 may be increased as a whole to increase the widths of the second and

first clamp portions

122 and 112, so that the widths of the first and

second clamp surfaces

1121 and 1221 may be increased to increase the contact area between the clamp surfaces and the conductive base film 4. As shown in fig. 10, it is also possible to partially increase, i.e., only increase the width of the first clamping portion 112 and the second clamping portion 122, so as to increase the width of the first clamping surface 1121 and the second clamping surface 1221, which not only can increase the contact area between the clamping surface and the conductive base film 4, but also can save material and reduce the weight of the conductive clip 1 compared to the structure shown in the figure.

In the plating operation, the conductive clip 1 needs to be frequently closed or opened in order to clamp or unclamp the conductive base film 4. Alternatively, the structure for achieving the closing and opening of the conductive clip 1 may be various. The conductive clip 1 shown in fig. 11 is a normally closed conductive clip 1, and the second clamping portion 122 and the first clamping portion 112 need to be opened by an external force. For example, a guide wheel 16 may be provided on the second holding arm 12, such that the guide wheel 16 is lifted by cooperating with other components, thereby moving the second holding arm 12 upward and opening the conductive clip 1.

Specifically, as shown in fig. 12, a lifting block 2 may be provided, and the lifting block 2 includes a lifting section, a horizontal section, and a descending section, that is, the thickness of the lifting block 2 is gradually reduced from the middle portion to both ends, and a rising surface and a descending surface are formed at both sides for abutting against the guide wheel 16. The lifting block 2 is fixed, the conductive clamp 1 can move along a straight line direction (namely, the X direction), when the conductive clamp 1 moves to the position of the lifting block 2, the guide wheel 16 can slide along the upper surface of the lifting block 2 by means of the arrangement of the lifting surface, so that the guide wheel 16 is lifted upwards, and the guide wheel 16 drives the second clamping arm 12 to move upwards, so that the conductive clamp 1 is opened. Specifically, when the conductive clip 1 moves to the lifting section along the X direction, the guide wheel 16 slides on the lifting surface and is gradually lifted, so that the second clamping arm 12 gradually moves upwards, and the conductive clip 1 is opened; when the guide wheel 16 slides to the horizontal section of the lifting block 2 and slides along the upper surface of the horizontal section, the second clamping arm 12 is always kept in the state after moving upwards, so that the conductive clamp 1 is kept in an open state; when the guide wheel 16 slides to the descending section, the guide wheel 16 slides on the descending surface, so that the second clamping arm 12 gradually moves downwards under the action of gravity, and the conductive clamp 1 is closed. That is, as shown in fig. 13, the conductive clip 1 on the left side of the figure has not moved to the lift block 2, and thus the conductive clip 1 is in a closed state; the middle conductive clip 1 slides on the lifting block 2, so that the second clamping arm 12 is lifted by the lifting block 2, and the conductive clip 1 is in an open state; the conductive clip 1 on the right side has left the lifting block 2, so that under the effect of gravity the conductive clip 1 returns to the closed state.

During the opening of the conductive clip 1, sliding friction is generated because the guide wheel 16 is in sliding contact with the lifting block 2. To reduce friction, the guide wheel 16 may be provided in a rotatable form. Therefore, when the conductive clamp 1 is movably matched with the lifting block 2, the rotatable guide wheel 16 can change sliding friction into rolling friction, thereby reducing the abrasion of parts.

In the electroplating process of the conductive base film 4 by using the film coating machine 3, the conductive clip 1 can be used for clamping the conductive base film 4, so that the conductive base film 4 is immersed in the plating solution for electroplating. However, since the conductive clip 1 is also partially immersed in the plating solution during the plating process, a plating layer may be formed on the surface of the conductive clip 1, and when the plating layer is thick, the opening and closing of the conductive clip 1 may be affected and the conductive base film 4 may be easily punctured, and since the conductive clip 1 has a higher conductive capability in the plating solution than the conductive base film 4, the current passing through the conductive base film 4 may be reduced during the plating process, thereby affecting the plating efficiency.

In order to avoid the first clamping surface 1121 and the second clamping surface 1221 of the conductive clip 1 being plated with copper, as shown in fig. 14 and 15, a first sealing portion 113 is disposed around the first clamping surface 1121, a second sealing portion 123 is disposed around the second clamping surface 1221, when the conductive clip 1 is in a clamping state, the first clamping surface 1121 is in contact with the second clamping surface 1221, and the first sealing portion 113 cooperates with the second sealing portion 123 to seal the first clamping surface 1121 and the second clamping surface 1221. Therefore, the areas of the first clamping surface 1121 and the second clamping surface 1221 of the conductive clip 1 are sealed after being matched by the first sealing portion 113 and the second sealing portion 123, and the plating solution is prevented from contacting the first clamping surface 1121 and the second clamping surface 1221, so that the first clamping surface 1121 and the second clamping surface 1221 are prevented from being plated with copper, the conductive clip 1 can be smoothly opened and closed, and the conductive base film 4 is prevented from being punctured by the plating layer of the clamping surface.

In addition, the remaining surfaces that can be immersed in the plating solution at the time of plating are designed as insulating surfaces, except for the first clamping surface 1121 and the second clamping surface 1221.

It should be noted that there are various ways to insulate the surface of the conductive clip 1, for example, the conductive clip 1 may be made of an insulating material, only the conductive sheets are disposed on the first clamping surface 1121 and the second clamping surface 1221, and then the conductive sheets are connected to the negative electrode of the power supply through a wire.

In addition, the whole conductive clip 1 may be made of a conductive metal material, and then an insulating sleeve is coated on the surface of the conductive clip 1, and the insulating sleeve is set to avoid the first clamping surface 1121 and the second clamping surface 1221. The whole inside of the conductive clip 1 can be made to be a conductive body, so that the first clamping surface 1121 and the second clamping surface 1221 can be electrified by conducting electricity from the inside of the conductive clip 1, for example, a part of the conductive surface exposed at the top of the conductive clip 1 is not coated with an insulating layer, or a conductive hole is formed at the top to be connected with a power supply cathode, so that a lead can be avoided, and the structure of the conductive clip 1 is simpler. It should be noted that, except for the first clamping surface 1121 and the second clamping surface 1221, the other surfaces of the conductive clip 1, which can be immersed in the plating solution during plating, are coated with an insulating sleeve.

Therefore, when the conductive clamp 1 in a clamping state needs to enter the plating solution, the part of the conductive clamp 1 entering the plating solution is insulated, the conductive clamp 1 is prevented from directly contacting the plating solution, a current path can be prevented from being formed between the conductive clamp 1 and the plating solution, the current passing through the conductive base film 4 can be prevented from being reduced, and the influence on the plating efficiency is avoided.

Specifically, as shown in fig. 16 and 17, the first sealing portion 113 is a first sealing ring 1131 disposed around the first clamping surface 1121, the first sealing ring 1131 at least partially protrudes from the first clamping surface 1121, the second sealing portion 123 is a first annular sealing groove 1231 disposed around the second clamping surface 1221, and when the conductive clip 1 is in the clamping state, a portion of the first sealing ring 1131 protruding from the first clamping surface 1121 is fitted and clamped in the first annular sealing groove 1231. Therefore, when the conductive clip 1 is in the clamping state, the portion of the first sealing ring 1131 protruding out of the first clamping surface 1121 is fitted and clamped into the first annular sealing groove 1231, and the conductive base film 4 contacting with the end of the first sealing ring 1131 is also squeezed into the first annular sealing groove 1231 along with the first sealing ring 1131, so that the first clamping surface 1121 and the second clamping surface 1221 are sealed, and the plating solution is prevented from contacting with the clamping surface. Due to the adoption of the matching structure of the sealing ring and the annular sealing groove, the sealing area is large, and the sealing effect is good.

Further, in order to improve the sealing effect, as shown in fig. 18 and 19, a second sealing ring 1232 is further provided on the second clamping portion 122 around the outer periphery of the first annular sealing groove 1231, the second sealing ring 1232 partially protrudes from the second clamping surface 1221, a second annular sealing groove 1132 is further provided on the first clamping portion 112 around the outer periphery of the first sealing ring 1131, and when the conductive clip 1 is in the clamping state, the portion of the second sealing ring 1232 protruding from the second clamping surface 1221 is fitted and clamped into the second annular sealing groove 1132. Thus, first seal ring 1131 cooperates with first annular seal groove 1231 to form a first seal. While the second seal ring 1232 cooperates with the second annular seal groove 1132 to form a second seal. Therefore, the double-layer sealing structure further improves the sealing effect.

Example two

The embodiment also provides a film coating machine which comprises the conductive clamp 1 in the first embodiment.

The coating machine 3 provided by this embodiment adopts the conductive clip 1 of the first embodiment, so that in the coating process, the service life of the conductive clip 1 is prolonged, frequent maintenance and replacement of the conductive clip 1 are avoided, and the cost is reduced. And the first clamping surface 1121 and the second clamping surface 1221 of the conductive clip 1 can be prevented from being plated with copper, thereby improving the plating efficiency of the plating machine 3.

Specifically, as shown in fig. 20, the film plating machine 3 may be a horizontal-film-moving type film plating machine, the film plating machine 3 includes a plating solution tank 31, a first conveying mechanism 32 and a second conveying mechanism 33, wherein the plating solution tank 31 includes a first side wall 311 and a second side wall 312 extending along a first horizontal direction Y and disposed oppositely, and an anode member and a plating solution (not shown in the figure) are disposed in the plating solution tank 31; the first conveying mechanism 32 includes a first conveying belt 321 disposed near the first sidewall 311 and extending along the Y direction, the first conveying belt 321 is provided with a plurality of first conductive clips 322, and the plurality of first conductive clips 322 are arranged along the Y direction; the second conveying mechanism 33 includes a second conveying belt 331 disposed adjacent to the second sidewall 312 and extending in the Y direction, the second conveying belt 331 is provided with a plurality of second conductive clips 332, and the plurality of second conductive clips 332 are arranged in the Y direction; the first conductive clip 322 and the second conductive clip 332 are respectively used for clamping two opposite sides of a horizontally placed conductive base film 4, and the first conductive clip 322 and the second conductive clip 332 can use the conductive clip 1 in the first embodiment, during operation, the conductive clips 1 are driven by the conveyor belt to move along the Y direction, when the conductive clips 1 move to a preset position, the conductive clips 1 clip the conductive base film 4 from two sides and drive the conductive base film 4 to move forwards, and meanwhile, the conductive base film 4 is electrified for electroplating.

The film plating machine 3 adopts a horizontal film-moving mode, and when in film plating, the whole conductive base film 4 clamped by the first conductive clamp 322 and the second conductive clamp 332 is positioned in the plating solution tank 31, thereby avoiding the phenomenon of electric breakdown caused by the reduction of the cooling effect when the local conductive base film 4 is positioned outside the plating solution tank 31.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a conductive clamp for coating machine which characterized in that includes:

a first clamp arm including a first clamp face;

the second clamping arm comprises a second clamping surface, and the first clamping surface and the second clamping surface are oppositely arranged and are conductive surfaces;

the rocker assembly comprises at least two rockers which are parallel to each other, one end of each rocker is hinged with the first clamping arm, and the other end of each rocker is hinged with the second clamping arm;

the first clamping arm, the second clamping arm and at least two rocking bars form a plane link mechanism, one of the first clamping arm and the second clamping arm can swing back and forth relative to the other so that the conductive clamp is in a clamping state or an opening state, and when the conductive clamp is in the clamping state, the first clamping surface is attached to the second clamping surface.

2. The conductive clip for coating machines of claim 1 wherein the rocker assembly comprises a first rocker and a second rocker of equal length, the first clamping arm comprises a first connecting rod and a first clamping part arranged at one end of the first connecting rod, the first clamping surface is arranged on the first clamping part, the second clamping arm comprises a second connecting rod and a second clamping part arranged at one end of the second connecting rod, the second clamping surface is arranged on the second clamping part, the first connecting rod is parallel to the second connecting rod, one end of the first rocker is hinged with the first connecting rod, the other end of the first rocker is hinged with the second connecting rod, one end of the second rocker is hinged with the first connecting rod, the other end of the second rocker is hinged with the second connecting rod, the first connecting rod, the second connecting rod, the first rocker and the second rocker form a parallelogram connecting rod mechanism.

3. The conductive clip for coating machine as claimed in claim 2, wherein the first connecting rod and the second connecting rod are both vertically disposed, the first clamping portion is located at the lower end of the first connecting rod and horizontally extends, the second clamping portion is located at the lower end of the second connecting rod and horizontally extends, the second clamping portion is located above the first clamping portion, the first clamping surface is disposed on the upper surface of the first clamping portion, and the second clamping surface is disposed on the lower surface of the second clamping portion.

4. The conductive clip for coating machine as claimed in claim 3, wherein the first connecting rod is a straight rod, the second connecting rod comprises a first vertical section, a bending section and a second vertical section, the first vertical section, the bending section and the second vertical section are sequentially arranged, a space is formed between the first vertical section and the upper section of the first connecting rod, the first rocking bar and the second rocking bar are respectively connected between the first vertical section and the upper section of the first connecting rod, the bending section is bent and extended from the lower end of the first vertical section to the direction close to the first connecting rod, the second vertical section is bent and extended from the end of the bending section close to the first connecting rod, and the second clamping portion is arranged at the lower end of the second vertical section.

5. The conductive clip for coating machine as claimed in claim 4, wherein the first link rod is provided with a first magnetic member, the second link rod is provided with a second magnetic member, the first magnetic member and the second magnetic member are oppositely arranged in the moving direction of the second link rod, and a magnetic force for keeping the conductive clip in the clamping state is formed between the first magnetic member and the second magnetic member.

6. The conductive clip for coating machine as claimed in claim 5, wherein the first magnetic member is located under the second magnetic member, and the first magnetic member is opposite to the second magnetic member in opposite polarity.

7. The conductive clip for coating machine as claimed in claim 6, wherein the first magnetic member and the second magnetic member are both disposed in the space.

8. The conductive clip for coating machine as claimed in claim 7, wherein a first protrusion is formed on a side of the upper section of the first connecting rod facing the space, the first magnetic member is disposed on an upper surface of the first protrusion, a second protrusion is formed on a side of the first vertical section facing the space, the second protrusion is located above the first protrusion, and the second magnetic member is disposed on a lower surface of the second protrusion.

9. The conductive clamp for coating machine as claimed in any one of claims 2 to 8, wherein the width of the first clamping portion is larger than the width of the first connecting rod, and the width of the second clamping portion is larger than the width of the second connecting rod.

10. The conductive clamp for coating machine as claimed in any one of claims 1 to 8, wherein a rotatable guide wheel is arranged on one side of the second clamping arm far away from the first clamping arm.

11. The conductive clip for coating machine as claimed in any one of claims 2 to 8, wherein a first sealing portion is provided on the upper surface of the first clamping portion around the first clamping surface, and a second sealing portion is provided on the lower surface of the second clamping portion around the second clamping surface, wherein when the conductive clip is in the clamping state, the first clamping surface is in contact with the second clamping surface, and the first sealing portion is engaged with the second sealing portion to seal the first clamping surface and the second clamping surface.

12. The conductive clip for coating machines of claim 11 wherein the surface of the conductive clip is configured to: except the first clamping surface and the second clamping surface, the rest surfaces which can be immersed in plating solution during plating are insulating surfaces.

13. The conductive clip for coating machine as claimed in claim 12,

the first clamping arm and the second clamping arm are made of conductive metal materials, the partial surfaces of the first clamping arm and the second clamping arm, which can be immersed in plating solution, are coated with insulating sleeves, and the insulating sleeves avoid the first clamping surface and the second clamping surface.

14. The conductive clip for coating machine as claimed in claim 11, wherein the first sealing portion is a first sealing ring disposed around the first clamping surface, the first sealing ring at least partially protrudes from the first clamping surface, the second sealing portion is a first annular sealing groove disposed around the second clamping surface, and when the conductive clip is in the clamping state, the portion of the first sealing ring protruding from the first clamping surface is fitted and clamped in the first annular sealing groove.

15. The conductive clip for coating machine as claimed in claim 14, wherein a second sealing ring is further disposed on the lower surface of the second clamping portion around the periphery of the first annular sealing groove, the second sealing ring partially protrudes from the second clamping surface, a second annular sealing groove is further disposed on the upper surface of the first clamping portion around the periphery of the first sealing ring, and when the conductive clip is in the clamping state, the portion of the second sealing ring protruding from the second clamping surface is engaged with and clamped into the second annular sealing groove.

16. A coater comprising the conductive clip of any one of claims 1 to 15.

17. A coater as defined in claim 16 wherein said coater includes:

the plating solution tank comprises a first side wall and a second side wall which extend along a first horizontal direction and are oppositely arranged;

the first conveying mechanism comprises a first conveying belt and a plurality of first conductive clips, wherein the first conveying belt is arranged close to the first side wall and extends along the first horizontal direction, the plurality of first conductive clips are arranged on the first conveying belt, and the plurality of first conductive clips are arranged along the first horizontal direction;

the second conveying mechanism comprises a second conveying belt which is arranged close to the second side wall and extends along the first horizontal direction, and a plurality of second conductive clamps which are arranged on the second conveying belt and are arranged along the first horizontal direction;

the first conductive clip and the second conductive clip are respectively used for clamping two opposite side edges of a horizontally placed conductive base film, and the first conductive clip and the second conductive clip are the conductive clips in any one of claims 1 to 15.