Gluing device and gluing equipment

Abstract

The utility model discloses a gluing device and gluing equipment, the gluing device comprises a gluing platform, the gluing platform comprises a first back roller and a second back roller, and the first back roller and the second back roller are arranged in parallel and at an interval; the gluing assembly comprises a gluing head, and the gluing head is located between the first back roller and the second back roller in a gluing state; the axial direction of the first back roller and the axial direction of the second back roller are the first direction, the arrangement direction of the first back roller and the arrangement direction of the second back roller are the second direction, and the first direction is perpendicular to the second direction. The pole piece is supported by arranging the first back roller and the second back roller, the gluing head is located between the first back roller and the second back roller, flexible contact between the gluing head and the pole piece can be achieved, automatic adjustment is achieved through flexible contact when protrusions or wrinkles exist on the edge of the pole piece, and the belt breakage problem is avoided; and continuous gluing on the pole piece can be realized.

Description

Technical Field

[0001] The present application belongs to the field of mechanical equipment, and specifically relates to a gluing device and gluing equipment. Background Art

[0002] In the production process of some batteries, it is necessary to apply a glue layer to the edge of the pole piece. This glue layer is, for example, a polymer glue layer, which has good thermal stability and insulation, can prevent the aluminum current collector in the middle from melting prematurely, effectively reduce the generation of rolling fluid aluminum beads, and can reduce short circuit defects in the assembly stage lamination or winding process.

[0003] However, in the prior art, the problem of glue breaking easily occurs on the pole piece during glue coating. Utility Model Content

[0004] The present application provides a glue coating device and glue coating equipment, which can solve the problem that the electrode is prone to glue breaking during glue coating.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a gluing device, which includes: a gluing platform, the gluing platform includes a first back roller and a second back roller, the first back roller and the second back roller are parallel and spaced apart; a gluing assembly, the gluing assembly includes a gluing head, and the gluing head is located between the first back roller and the second back roller in the gluing state; wherein the axial direction of the first back roller and the second back roller is a first direction, the arrangement direction of the first back roller and the second back roller is a second direction, and the first direction is perpendicular to the second direction.

[0006] The first back roller and the second back roller are provided to support the pole piece, and the glue coating head is located between the first back roller and the second back roller, so that flexible contact between the glue coating head and the pole piece can be achieved. When there are protrusions or wrinkles on the edge of the pole piece, automatic adjustment is achieved through flexible contact, and the problem of belt breakage will not occur, so continuous glue coating of the pole piece can be achieved.

[0007] In some embodiments, the gluing device also includes a first tensioning roller and a second tensioning roller, the first tensioning roller is arranged on the side of the first back roller away from the second back roller, the second tensioning roller is arranged on the side of the second back roller away from the first back roller, and the first tensioning roller and the second tensioning roller are both parallel to the first back roller or the second back roller.

[0008] By setting the first tensioning roller and the second tensioning roller, the shaking of the pole piece during operation can be reduced and the stability of the pole piece can be enhanced, so that the glue coating head can better continuously coat the pole piece with glue.

[0009] In some embodiments, the glue coating assembly also includes a glue coating power source and a flow control component, the glue coating power source is connected to the flow control component, the flow control component is connected to the glue coating head, the glue coating power source controls the flow control component to supply glue to the glue coating head, and the flow control component feeds back the amount of glue flowing into the glue coating head to the glue coating power source, so that the glue coating power source adjusts the power output to the flow control component, thereby controlling the flow rate of glue supplied by the flow control component to the glue coating head.

[0010] The flow rate of glue at the glue coating head is realized by the flow control component, thereby controlling the thickness of the glue layer on the surface of the pole piece, and realizing high-precision control of the thickness of the glue layer on the surface of the pole piece.

[0011] In some embodiments, the flow control component includes a flow monitor and a gear pump, the flow monitor is connected to a glue delivery or storage device, the flow monitor is also connected to the gear pump, and the gear pump is connected to the glue coating power source and the glue coating head.

[0012] Using a gear pump can control the output more simply and accurately.

[0013] In some embodiments, the flow monitor is a passive gear pump.

[0014] The coordination between the passive gear pump and the gear pump is more precise and the coordination method is relatively simple, which is a better combination method for flow control.

[0015] In some embodiments, there are at least two gluing components, and at least two of the gluing components are arranged at intervals.

[0016] It is possible to coat both sides of the pole piece, or to coat the pole piece with a double layer.

[0017] In some embodiments, at least two glue coating components are arranged along the first direction.

[0018] Focus on coating both sides of the electrode.

[0019] In some embodiments, the gluing device further includes a first moving component, which is connected to the gluing assembly or the gluing head to drive the gluing assembly or the gluing head to move along a third direction, wherein the third direction is perpendicular to the first direction and the second direction.

[0020] The setting of the first moving part can realize the movement of the glue coating head, so that the position of the glue coating head can be adjusted. When in a non-working state, it can be separated from the position where the pole piece is running, and when in a working state, the pressure on the pole piece can be adjusted.

[0021] In some embodiments, the first moving component includes a first power source, a first connecting rod and a first connecting plate, the first power source is connected to the first end of the first connecting rod, the second end of the first connecting rod is connected to the first connecting plate, the first connecting plate is connected to the gluing assembly or the gluing head, the first power source drives the first connecting rod to move, the first connecting rod drives the first connecting plate to move, and the first connecting plate drives the gluing assembly or the gluing head to move.

[0022] In this way, the gluing component or the gluing head can move more smoothly.

[0023] In some embodiments, the gluing device further includes a second moving component, which is connected to the first moving component and drives the first moving component to move along the first direction, thereby enabling the gluing assembly or the gluing head to move along the first direction.

[0024] The second moving component realizes the movement of the glue coating head in the first direction, so that the glue coating head can adapt to pole pieces of different widths, thereby enabling one glue coating device to coat pole pieces of different widths with glue.

[0025] In some embodiments, the second moving component includes a second power source, a second connecting rod and a second connecting plate, the second power source is connected to the first end of the second connecting rod, the second end of the second connecting rod is connected to the second connecting plate, and the second connecting plate is connected to the first moving component, the second power source drives the second connecting rod to move, and the second connecting rod drives the second connecting plate to move, so that the first moving component, the glue coating assembly or the glue coating head can move along the first direction.

[0026] Through the above method, the gluing component or the gluing head can move more smoothly.

[0027] In some embodiments, the first moving component is arranged in a one-to-one correspondence with the glue coating component. When there are at least two first moving components, there are also at least two second power sources, second connecting rods and second connecting plates, and each second power source, second connecting rod and second connecting plate corresponds to one first moving component.

[0028] Through the above-mentioned method, when there are multiple gluing components, the operations of the gluing components do not interfere with each other, thereby increasing the adaptability scenarios of the gluing device.

[0029] In some embodiments, the gluing platform also includes a pressure sensor, which is connected to the first back roller and / or the second back roller, and is also coupled to the first moving component. The pressure sensor is used to sense the pressure at the first back roller and / or the second back roller, and convert the pressure into a signal and send it to the first moving component, so that the first moving component adjusts the position of the gluing assembly or the gluing head in the third direction.

[0030] Through the above-mentioned method, it is possible to prevent the glue coating head from applying too much or too little pressure to the pole piece, and realize automatic adjustment, thereby further preventing the pole piece from breaking or poor glue coating effect.

[0031] In some embodiments, the pressure sensor is connected to the first back roller and / or the second back roller via an elastic member.

[0032] The provision of the elastic member enables the first back roller and the second back roller to have a certain movement space, thereby preventing the pole piece from being broken when the pressure of the glue coating head is too large.

[0033] In some embodiments, the glue coating platform further includes a bearing plate, the bearing plate is rotatably connected to the first back roller and the second back roller, one end of the elastic member is connected to the bearing plate, and the other end is connected to the pressure sensor.

[0034] This structure can ensure the overall stability of the first back roller and the second back roller, thereby ensuring the stability of the pole piece during the glue coating process.

[0035] In some embodiments, the glue coating platform further includes a cooling member, which is disposed on a surface of the supporting plate facing the first back roller and the second back roller and is located between projections of the first back roller and the second back roller on the supporting plate.

[0036] The cooling element can realize the rapid solidification of the glue layer on the pole piece and prevent the glue layer on the pole piece from adhering to other components.

[0037] In some embodiments, the surface of the glue coating head for contacting and coating the part to be glued is a curved surface.

[0038] The curved surface of the glue coating head enables the coating on the pole piece to be more uniform, and also makes the pole piece smoother when passing through the glue coating head.

[0039] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a gluing device, which includes at least two transport rollers and a gluing device arranged between two adjacent transport rollers, and the gluing device is any one of the gluing devices described above.

[0040] The first back roller and the second back roller are provided to support the pole piece, and the glue coating head is located between the first back roller and the second back roller, so that flexible contact between the glue coating head and the pole piece can be achieved. When there are protrusions or wrinkles on the edge of the pole piece, automatic adjustment is achieved through flexible contact, and the problem of belt breakage will not occur, so continuous glue coating of the pole piece can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, among which:

[0042] Figure 1 is a simplified schematic diagram of a vehicle according to some embodiments;

[0043] Figure 2 is an exploded view of a battery according to some embodiments;

[0044] Figure 3 is an exploded view of a battery according to some other embodiments;

[0045] Figure 4 is a schematic diagram of the side structure of a glue coating device according to some embodiments;

[0046] Figure 5 is a schematic diagram of a three-dimensional structure of a glue coating device according to some embodiments;

[0047] Figure 6 is a partial structural schematic diagram of a glue coating device according to some embodiments;

[0048] Figure 7 It is a schematic diagram of the three-dimensional structure of the glue coating equipment according to some embodiments.

[0049] Marking Description:

[0050] Vehicle 1, battery 10, battery cell 20, controller 30, motor 40;

[0051] Box body 11, cover body 111, box shell 112, bottom plate 112a, electrical cavity 11a, converging component 12, support beam 114;

[0052] Gluing device 50, glue coating assembly 51, glue coating head 511, glue coating power source 512, flow monitor 513, gear pump 514, glue coating platform 52, first back roller 521, second back roller 522, first tensioning roller 523, second tensioning roller 524, supporting plate 525, pressure sensor 526, elastic member 527, cooling member 528, first moving part 53, first power source 531, first connecting rod 532, first connecting plate 533, second moving part 54, second power source 541, second connecting rod 542, second connecting plate 543, glue delivery or storage device 60, transport roller 71, pole piece 90. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings showing multiple embodiments of the present application. It should be understood that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by ordinary technicians in this field without spending creative work will fall within the scope of protection of the present application.

[0054] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those generally understood by technicians in the technical field of this application; the terms used in the specification of the application are only for the purpose of describing specific implementation methods, and are not intended to limit this application; the terms "including", "comprising", "having", "having", "containing", "including", etc. in the specification and claims of this application and the above-mentioned figure description are open-ended words. Therefore, "including", "comprising", "having" is a method or device with one or more steps or elements, for example, which has one or more steps or elements, but is not limited to having only these one or more elements. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "multiple" is two or more.

[0055] In the description of the present application, it should be understood that the terms "center", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0056] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0058] As mentioned above, it should be emphasized that when the term "includes / comprising" is used in this specification, it is used to clearly indicate the presence of the features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or groups of features, integers, steps, components. As used in this application, the singular forms "a", "an" and "the" also include plural forms, unless the context clearly indicates otherwise.

[0059] The words "a" and "an" in this specification may mean one, but may also be consistent with the meaning of "at least one" or "one or more". The term "about" generally means plus or minus 10% of the mentioned value, or more specifically plus or minus 5%. The term "or" used in the claims means "and / or" unless it is clearly stated that it refers to only alternative solutions.

[0060] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0061] The battery mentioned in the embodiments disclosed in this application refers to a single physical module including one or more battery cells to provide a predetermined voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack, etc. The battery cell is the basic unit in the battery, and can generally be divided into: cylindrical battery cells, square battery cells and soft-pack battery cells according to the packaging method. The following will mainly focus on square battery cells. It should be understood that the embodiments described below are also applicable to cylindrical battery cells or soft-pack battery cells in some aspects.

[0062] A battery cell includes a positive electrode sheet, a negative electrode sheet, an electrolyte and a separator. Lithium-ion battery cells mainly rely on the movement of lithium ions between the positive electrode sheet and the negative electrode sheet to work. For example, a lithium-ion battery cell uses an embedded lithium compound as an electrode material. The main common positive electrode materials currently used as lithium-ion batteries are: lithium cobalt oxide (LiCoO2), lithium manganese oxide (LiMn2O4), lithium nickel oxide (LiNiO2) and lithium iron phosphate (LiFePO4). The separator is arranged between the positive electrode sheet and the negative electrode sheet to form a thin film structure with three layers of material. The thin film structure is generally made into an electrode assembly with a desired shape by winding or stacking. For example, the thin film structure of the three layers of material in the cylindrical battery cell is wound into a cylindrical electrode assembly, while the thin film structure in the square battery cell is wound or stacked into an electrode assembly with a roughly rectangular shape.

[0063] Multiple battery cells can be connected in series and / or in parallel via electrode terminals for various applications. In some high-power applications such as electric vehicles, the application of batteries includes three levels: battery cells, battery modules and batteries. The battery module is formed by electrically connecting a certain number of battery cells together and placing them in a frame in order to protect the battery cells from external impact, heat, vibration, etc. The battery is the final state of the battery system installed in the electric vehicle. The battery generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells. The box generally consists of a cover and a box shell, and the box shell generally includes a bottom plate and an outer plate. The outer plate extends from the edge of the bottom plate, generally perpendicular to the bottom plate, and the bottom plate and the outer plate form a containing space with an opening for accommodating battery cells or battery modules. The cover covers the opening of the containing space, is arranged opposite to the bottom plate, and is connected to the outer plate. The box shell and the cover can be detachably connected or sealed. Most of the current batteries are made by assembling various control and protection systems such as battery management systems (BMS) and thermal management components on one or more battery modules. With the development of technology, the battery module level can be omitted, that is, the battery is directly formed by battery cells. Multiple battery cells connected together are called battery modules. This improvement has increased the weight energy density and volume energy density of the battery system while significantly reducing the number of components. The batteries mentioned in this application include battery modules or batteries.

[0064] In some cases, in order to ensure the stability of the pole piece during glue coating, a back roller is set under the pole piece to support the pole piece. The glue coating head is set corresponding to the back roller. When coating, the glue coating head presses the pole piece on the back roller. While the pole piece is moving, the back roller rotates, and the glue coating head coats the glue on the pole piece. However, when there are protrusions or wrinkles on the pole piece, this structure will cause the glue coating head and the back roller to clamp the pole piece, causing the pole piece to break during glue coating.

[0065] In order to solve the problem that the pole piece is prone to breaking during glue coating, it can be noted that the main reason is that the pole piece is stabilized by clamping the pole piece between the glue coating head and the back roller. Therefore, the situation of breaking the pole piece when the pole piece has a bulge during glue coating can be improved by making the glue coating head, the back roller and the pole piece in flexible contact, so as to improve the continuity and stability of the pole piece during glue coating. Therefore, two back rollers can be set to provide support for the pole piece. Then the glue coating head is set between the two back rollers to glue the pole piece. This setting method can make the pole piece in the position of contact with the glue coating head suspended and will not be clamped, thereby forming a flexible conflict. When the pole piece has a bulge, the pole piece will pass the bulge through the glue coating head under the action of other transport rollers, but the pole piece will move slightly away from the glue coating head, and the bulge will return to its original position after passing, and will not be stuck, thereby avoiding the phenomenon of breaking the pole piece, and enabling the glue coating device to continuously and stably glue the pole piece.

[0066] Based on the above considerations, in order to solve the problem of poor electrolyte infiltration on the top of the bare battery cell and the electrode, resulting in lithium deposition, a glue coating device and glue coating equipment were designed.

[0067] For example, Figure 1 As shown, this figure is a simple schematic diagram of a vehicle 1 in which an electric device according to some embodiments is used. The vehicle 1 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 10 can be arranged inside the vehicle 1, for example, a battery 10 can be arranged at the bottom, front or rear of the vehicle 1. The battery 10 can be used to power the vehicle 1, for example, the battery 10 can be used as an operating power source for the vehicle 1. And the vehicle 1 can also include a controller 30 and a motor 40. The controller 30 is used to control the battery 10 to power the motor 40, for example, for the working power demand of the vehicle 1 during starting, navigation and driving. In another embodiment of the present application, the battery 10 can not only be used as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1. The battery 10 referred to below can also be understood as a battery including a plurality of battery cells 20.

[0068] Figure 2 and Figure 3 1 and 2 show exploded views of a battery 10 according to some embodiments. Figure 2 and Figure 3 As shown, the battery 10 includes a plurality of battery cells 20 and a busbar 12 for electrically connecting the plurality of battery cells 20. In order to protect the battery cells 20 from being invaded or corroded by external liquids or foreign objects, the battery 10 includes a housing 11, which is used to encapsulate the plurality of battery cells and other necessary components, such as Figure 2 and Figure 3 As shown. In some embodiments, the box body 11 may include a cover 111 and a box shell 112, and the battery 10 may further include a support beam 114 extending between the cover 111 and the box shell 112, and the support beam 114 may extend from the bottom plate 112a of the box shell 112 toward the cover 111 in a direction perpendicular to the bottom plate 112a. The cover 111 and the box shell 112 are sealed together to jointly surround and form an electrical cavity 11a for accommodating a plurality of battery cells 20. In some other embodiments, the cover 111 and the box shell 112 may also be combined with each other without being sealed.

[0069] like Figure 4 and Figure 5 As shown, Figure 4 is a schematic diagram of the side structure of a glue coating device according to some embodiments; Figure 5 Schematic diagram of the three-dimensional structure of the gluing device according to some embodiments. In some embodiments, the gluing device 50 includes a gluing platform 52 and a gluing assembly 51. The gluing platform 52 includes a first back roller 521 and a second back roller 522, and the first back roller 521 and the second back roller 522 are parallel and spaced apart. The gluing assembly 51 includes a gluing head 511, and the gluing head 511 is located between the first back roller 521 and the second back roller 522 in the gluing state. Among them, the axial direction of the first back roller 521 and the second back roller 522 is the first direction, the arrangement direction of the first back roller 521 and the second back roller 522 is the second direction, and the first direction is perpendicular to the second direction.

[0070] When the pole piece 90 is being coated with glue, only one side of the surface can be coated with glue. At this time, the surface that is being or will be coated with glue can be called the glue coating surface, and the surface opposite to the glue coating surface is the back surface. The first back roller 521 and the second back roller 522 are roller-shaped structures, supporting the back side of the pole piece 90 so that the pole piece 90 can remain stable during the glue coating. The first back roller 521 and the second back roller 522 can be the same or different, and it is only necessary to make the pole piece 90 between the first back roller 521 and the second back roller 522 able to be spread out flat. When the pole piece 90 is driven to move, the first back roller 521 and the second back roller 522 will be driven to rotate at the same time, and the first back roller 521 and the second back roller 522 need to be arranged in parallel, so that the movement direction of the pole piece 90 remains stable. The arrangement direction of the first back roller 521 and the second back roller 522 is the second direction, which can ensure that the first back roller 521 and the second back roller 522 are arranged along the movement direction of the pole piece 90, so as to facilitate the movement of the pole piece 90. The glue coating head 511 is a component for coating glue on the pole piece 90 . The required glue is coated on the pole piece 90 through the glue coating head 511 .

[0071] The support for the pole piece 90 is achieved by setting a first back roller 521 and a second back roller 522, and the glue coating head 511 is located between the first back roller 521 and the second back roller 522, so that flexible contact between the glue coating head 511 and the pole piece 90 can be achieved. When there are protrusions or wrinkles on the edge of the pole piece 90, automatic adjustment is achieved through flexible contact, and the belt breakage problem will not occur, so continuous glue coating of the pole piece 90 can be achieved.

[0072] Please read further Figure 6 , Figure 6 Schematic diagram of a partial structure of a glue coating device according to some embodiments. In some embodiments, the glue coating device 50 further includes a first tensioning roller 523 and a second tensioning roller 524. The first tensioning roller 523 is disposed on a side of the first back roller 521 away from the second back roller 522, and the second tensioning roller 524 is disposed on a side of the second back roller 522 away from the first back roller 521. Both the first tensioning roller 523 and the second tensioning roller 524 are parallel to the first back roller 521 or the second back roller 522.

[0073] The first tensioning roller 523 and the second tensioning roller 524 are also roller-shaped structures. The above-mentioned arrangement makes the first back roller 521 and the second back roller 522 arranged between the first tensioning roller 523 and the second tensioning roller 524, so that the pole piece 90 passes through the first back roller 521 and the second back roller 522 after being tensioned by the first tensioning roller 523 and the second tensioning roller 524. The first tensioning roller 523 and the second tensioning roller 524 can be the same. In some embodiments, the diameter of the first tensioning roller 523 and the second tensioning roller 524 is greater than the diameter of the first back roller 521 and the second back roller 522, and the axial length of the first tensioning roller 523 and the second tensioning roller 524 can also be greater than the axial length of the first back roller 521 and the second back roller 522. Since the pole piece 90 may not be tightened when the transport roller 71 transports the pole piece 90, the pole piece 90 is prone to shaking during operation. If this happens, the gluing effect of the pole piece 90 will be affected, and the gluing thickness cannot be guaranteed. Therefore, a first tensioning roller 523 and a second tensioning roller 524 are arranged on both sides of the first back roller 521 and the second back roller 522 to tension the pole piece 90. When the pole piece 90 is tightened, it is not easy to shake during operation, so that the gluing head 511 can better gluing the pole piece 90, ensuring the gluing effect and gluing thickness.

[0074] By setting the first tensioning roller 523 and the second tensioning roller 524 , the vibration of the pole piece 90 during operation can be reduced, and the stability of the pole piece 90 can be enhanced, so that the glue coating head 511 can better continuously coat the pole piece 90 with glue.

[0075] In some embodiments, the glue coating assembly 51 further includes a glue coating power source 512 and a flow control component, wherein the glue coating power source 512 is connected to the flow control component, and the flow control component is connected to the glue coating head 511. The glue coating power source 512 controls the flow control component to supply glue to the glue coating head 511, and the flow control component feeds back the amount of glue flowing into the glue coating head 511 to the glue coating power source 512, so that the glue coating power source 512 adjusts the power output to the flow control component, thereby controlling the flow rate of glue supplied to the glue coating head 511 by the flow control component.

[0076] The flow control component is a component used to transport glue to the glue coating head 511, and the glue coating power source 512 is a component that provides power for the flow control component. The glue coating power source 512 provides power so that the flow control component can transport the glue to the glue coating head 511, so that the glue coating head 511 can achieve glue coating on the electrode 90. When transporting the glue for coating, the flow control component can also detect the flow of glue, that is, the amount of glue flowing into the glue coating head 511 from the flow control component per unit time. The unit time can be 1 second, 0.1 second, 5 seconds, 10 seconds, 20 seconds, 30 seconds or one minute. The range of the unit time is more suitable within 0.1 seconds to one minute. The flow control component feeds back the amount of glue flowing into the glue coating head 511 to the glue coating power source 512, and the glue coating power source 512 will determine whether the amount of glue in this unit time is the same as the amount of glue that should flow into the glue coating head 511. If not, the power output to the flow control component is adjusted. For example, if the amount of glue flowing into the glue coating head 511 per unit time of the flow control part is less than the amount of glue that should flow into the glue coating head 511, the glue coating power source 512 will increase the power output to the flow control part; if the amount of glue flowing into the glue coating head 511 per unit time of the flow control part is more than the amount of glue that should flow into the glue coating head 511, the glue coating power source 512 will reduce the power output to the flow control part. The glue coating power source 512 can be a motor, etc.

[0077] The flow rate of glue at the glue coating head 511 is achieved through the flow control component, thereby controlling the thickness of the glue layer on the surface of the pole piece 90, thereby achieving high-precision control of the thickness of the glue layer on the surface of the pole piece 90.

[0078] In some embodiments, the flow control component includes a flow monitor 513 and a gear pump 514. The flow monitor 513 is connected to the glue delivery or storage device 60. The flow monitor 513 is also connected to the gear pump 514. The gear pump 514 is connected to the glue coating power source 512 and the glue coating head 511.

[0079] The glue enters the flow monitor 513 through the glue delivery or storage device 60, and then enters the glue coating head 511 through the gear pump 514. The glue delivery or storage device 60 can be a pipe for delivering glue, or a storage box for storing glue. The circulation of glue is achieved through the operation of the gear pump 514, and the operation of the gear pump 514 is powered by the glue coating power source 512. Therefore, the glue coating power source 512 can control the working state of the gear pump 514, thereby controlling the flow of glue. The flow monitor 513 is used to monitor the flow of glue passing through. The data of the flow monitor 513 is fed back to the glue coating power source 512, so that the glue coating power source 512 can adjust the power output. In the above manner, the thickness of the glue on the pole piece 90 can be controlled between 5μm and 100μm, and the thickness of the glue layer on the pole piece 90 can be accurately controlled. In addition, it is possible to achieve no leakage coating of the pole piece 90 and clear glue coating boundaries. In addition, the flow monitor 513 can also alarm and shut down the machine when the flow of glue exceeds the adjustment range, thereby reducing the amount of defective products to a certain extent.

[0080] The use of the gear pump 514 can control the output relatively simply and accurately.

[0081] In some embodiments, the flow monitor 513 is a passive gear pump 514 .

[0082] The passive gear pump 514 usually cooperates with the gear pump 514 to transport materials and count and detect the flow rate of materials.

[0083] The cooperation between the passive gear pump 514 and the gear pump 514 is more precise and the cooperation method is also simpler, which is a better combination method for flow control.

[0084] In some embodiments, there are at least two glue coating components 51, and the at least two glue coating components 51 are arranged at intervals.

[0085] There can be two, three or more glue coating components 51, and the specific number can be set according to the actual glue coating requirements. Multiple glue coating components 51 can coat the front and back or both sides of the pole piece 90 with glue, thereby meeting various glue coating requirements.

[0086] It is possible to coat both sides of the pole piece 90 or to coat the pole piece 90 with a double layer.

[0087] In some embodiments, at least two glue coating components 51 are arranged along the first direction.

[0088] The glue coating assembly 51 is arranged along the first direction, so that the arrangement direction of the glue coating head 511 is the same as the axial direction of the first back roller 521 and the second back roller 522, and the distance from each glue coating head 511 to the first back roller 521 or the second back roller 522 is the same. In this way, when gluing the pole piece 90, the force on both sides of the pole piece 90 is uniform, and the pole piece 90 will not be twisted. In addition, this arrangement is to achieve gluing on both sides of the pole piece 90 at the same time.

[0089] Focus is placed on coating both sides of the pole piece 90 .

[0090] Please read further Figure 7 , Figure 7 Schematic diagram of the three-dimensional structure of the glue coating device according to some embodiments. In some embodiments, the glue coating device 50 further includes a first moving part 53, and the first moving part 53 is connected to the glue coating assembly 51 or the glue coating head 511 to drive the glue coating assembly 51 or the glue coating head 511 to move along a third direction, and the third direction is perpendicular to the first direction and the second direction.

[0091] The first moving component 53 is a component that can drive the glue coating device 50 to move along the third direction. The first moving component 53 can be a motor with a screw or other components, or a motor with a telescopic rod, a chain or other components. The first moving component 53 can be connected to an external component to fix itself.

[0092] The first moving component 53 can realize the movement of the glue coating head 511, so that the position of the glue coating head 511 can be adjusted. When in a non-working state, it can be separated from the position where the pole piece 90 is running, and when in a working state, the pressure on the pole piece 90 can be adjusted.

[0093] In some embodiments, the first moving component 53 includes a first power source 531, a first connecting rod 532 and a first connecting plate 533. The first power source 531 is connected to the first end of the first connecting rod 532, the second end of the first connecting rod 532 is connected to the first connecting plate 533, the first connecting plate 533 is connected to the gluing component 51 or the gluing head 511, the first power source 531 drives the first connecting rod 532 to move, the first connecting rod 532 drives the first connecting plate 533 to move, and the first connecting plate 533 drives the gluing component 51 or the gluing head 511 to move.

[0094] The first power source 531 provides power to the first connecting rod 532 so that the first connecting rod 532 drives the first connecting plate 533 to move in the third direction. The first power source 531 may be a motor. The first connecting plate 533 and the first connecting rod 532 may be connected by threads. When the first power source 531 drives the first connecting rod 532 to rotate, the first connecting plate 533 moves in the third direction; when the rotation directions are different, reciprocating motion is achieved. When the first connecting plate 533 moves in the third direction, it can drive the glue coating assembly 51 or the glue coating head 511 to move in the third direction.

[0095] In this way, the gluing component 51 or the gluing head 511 can move more smoothly.

[0096] In some embodiments, the gluing device 50 further includes a second moving component 54, which is connected to the first moving component 53, and drives the first moving component 53 to move along the first direction, thereby enabling the gluing assembly 51 or the gluing head 511 to move along the first direction.

[0097] The second moving component 54 is similar to the first moving component 53 , and is used to drive the first moving component 53 to move along the first direction.

[0098] The second moving component 54 enables the glue coating head 511 to move in the first direction, so that the glue coating head 511 can adapt to pole pieces 90 of different widths, thereby enabling one glue coating device 50 to coat pole pieces 90 of different widths.

[0099] In some embodiments, the second moving component 54 includes a second power source 541, a second connecting rod 542 and a second connecting plate 543. The second power source 541 is connected to the first end of the second connecting rod 542, the second end of the second connecting rod 542 is connected to the second connecting plate 543, and the second connecting plate 543 is connected to the first moving component 53. The second power source 541 drives the second connecting rod 542 to move, and the second connecting rod 542 drives the second connecting plate 543 to move, so that the first moving component 53, the glue coating assembly 51 or the glue coating head 511 can move along the first direction.

[0100] The second power source 541 provides power to the second connecting rod 542 so that the second connecting rod 542 drives the second connecting plate 543 to move in the first direction. The second power source 541 can be a motor. The second connecting plate 543 and the second connecting rod 542 can be connected by threads. When the second power source 541 drives the second connecting rod 542 to rotate, the second connecting plate 543 will move in the first direction; when the rotation directions are different, reciprocating motion is achieved. When the second connecting plate 543 moves in the first direction, it can drive the glue coating component 51 or the glue coating head 511 to move in the first direction. Among them, the first power source 531 can be connected to the second connecting plate 543 to fix the first power source 531; the first connecting plate 533 can be slidably connected to the second connecting plate 543.

[0101] Through the above method, the gluing component 51 or the gluing head 511 can move more smoothly.

[0102] In some embodiments, the first moving component 53 is arranged in a one-to-one correspondence with the glue coating component 51. When there are at least two first moving components 53, there are at least two second power sources 541, second connecting rods 542 and second connecting plates 543, and each second power source 541, second connecting rod 542 and second connecting plate 543 corresponds to a first moving component 53.

[0103] The first moving parts 53 are arranged in a one-to-one correspondence with the glue coating components 51, that is, each glue coating component 51 is connected to a first moving part 53. This arrangement is to ensure that each glue coating component 51 can move independently in the third direction, so as to adjust the pressure of the glue coating heads 511 in different glue coating components 51 corresponding to the pole piece 90, so that the pressure of the glue coating heads 511 in different glue coating components 51 on the pole piece 90 can be kept the same. Each second power source 541, second connecting rod 542 and second connecting plate 543 corresponds to a first moving part 53, and also to ensure that each glue coating component 51 moves independently in the first direction, so as to adjust the distance between the two glue coating components 51, so as to be able to glue the opposite sides of the same surface of the pole pieces 90 of different widths.

[0104] Through the above-mentioned manner, when there are multiple gluing components 51 , the operations of the gluing components 51 do not interfere with each other, thereby increasing the adaptability scenarios of the gluing device 50 .

[0105] In some embodiments, the gluing platform 52 also includes a pressure sensor 526, which is connected to the first back roller 521 and / or the second back roller 522. The pressure sensor 526 is also coupled to the first moving component 53. The pressure sensor 526 is used to sense the pressure at the first back roller 521 and / or the second back roller 522, and convert the pressure into a signal to send to the first moving component 53, so that the first moving component 53 adjusts the position of the gluing assembly 51 or the gluing head 511 in the third direction.

[0106] The pressure sensor 526 is a device that can convert pressure into an electrical signal. Since the pole piece 90 is suspended in the glue coating position, the pressure at the first back roller 521 and / or the second back roller 522 can be detected indirectly and converted into an electrical signal to be sent to the first motion device, and when the pressure at the first back roller 521 and / or the second back roller 522 is abnormal, the first motion device drives the glue coating assembly 51 or the glue coating head 511 to move along the third direction. For example, when the pressure at the first back roller 521 and / or the second back roller 522 is too large, the pressure sensor 526 sends a signal to the first motion device, and the first motion device drives the glue coating assembly 51 or the glue coating head 511 to move along the third direction away from the first back roller 521 and / or the second back roller 522 to reduce the pressure of the glue coating head 511 on the pole piece 90, thereby reducing the pressure of the pole piece 90 on the first back roller 521 and / or the second back roller 522; when the first back roller 521 and / or the second back roller 52 2 is too small, the pressure sensor 526 sends a signal to the first motion device, and the first motion device drives the glue coating assembly 51 or the glue coating head 511 to move along the third direction toward the first back roller 521 and / or the second back roller 522 to increase the pressure of the glue coating head 511 on the pole piece 90, thereby increasing the pressure of the pole piece 90 on the first back roller 521 and / or the second back roller 522, ensuring that the glue coating head 511 has sufficient pressure on the pole piece 90, and ensuring the glue coating effect of the glue coating head 511 on the pole piece 90. In some embodiments, the pressure sensor 526 is coupled to the first power source 531 of the first motion component 53, so that the first power source 531 adjusts the power output of the first power source 531 itself according to the signal transmitted from the pressure sensor 526. In addition, in some embodiments, when the pressure sensor 526 senses abnormal pressure, it can also issue an alarm to give an alarm.

[0107] Through the above-mentioned method, it is possible to prevent the glue coating head 511 from exerting too much or too little pressure on the pole piece 90, and realize automatic adjustment, thereby further preventing the pole piece 90 from breaking or having a poor glue coating effect.

[0108] In some embodiments, the pressure sensor 526 is connected to the first back roller 521 and / or the second back roller 522 via an elastic member 527 .

[0109] The elastic member 527 is, for example, an elastic device such as a spring or a spring sheet. The elastic member 527 can buffer between the pressure sensor 526 and the first back roller 521 and / or the second back roller 522, so that the first back roller 521 and / or the second back roller 522 can be displaced to a certain extent when the pressure is high, thereby avoiding the situation where the pressure is too high. Therefore, when the pressure applied by the glue coating head 511 to the pole piece 90 is high, the pressure of the pole piece 90 on the first back roller 521 and / or the second back roller 522 is high. At this time, the first back roller 521 and / or the second back roller 522 will compress the elastic member 527, thereby displacing and releasing the pressure on part of the pole piece 90, so that the pole piece 90 is not easy to break.

[0110] The provision of the elastic member 527 enables the first back roller 521 and the second back roller 522 to have a certain movement space, thereby preventing the pole piece 90 from being broken when the pressure of the glue coating head 511 is too large.

[0111] In some embodiments, the glue coating platform 52 further includes a supporting plate 525 rotatably connected to the first back roller 521 and the second back roller 522 . One end of the elastic member 527 is connected to the supporting plate 525 , and the other end is connected to the pressure sensor 526 .

[0112] The bearing plate 525 may be a plate-shaped structure, and its two ends are respectively connected to the two ends of the first back roller 521 and the second back roller 522. The arrangement of the bearing plate 525 can keep the first back roller 521 and the second back roller 522 relatively stable and not prone to deviation.

[0113] This structure can ensure the overall stability of the first back roller 521 and the second back roller 522, thereby ensuring the stability of the pole piece 90 during the glue coating process.

[0114] In some embodiments, the glue coating platform 52 further includes a cooling member 528 , which is disposed on the surface of the supporting plate 525 facing the first back roller 521 and the second back roller 522 and is located between the projections of the first back roller 521 and the second back roller 522 on the supporting plate 525 .

[0115] The cooling member 528 is a member used to cool the pole piece 90 after glue coating. Since the temperature at the glue coating head 511 is relatively high, if the glue coated on the pole piece 90 by the glue coating head 511 is not cooled and solidified in time, it may adhere to other components or flow. Therefore, it is necessary to cool the pole piece 90 after glue coating so that the glue on the pole piece 90 can be cooled in time. The cooling member 528 can be a cooling air knife. The cooling air duct is arranged on the glue coating platform 52, and can be arranged on the supporting plate 525, between the first back roller 521 and the second back roller 522, corresponding to the glue coating head 511. The air outlet of the cooling air knife is opposite to the glue coating head 511, and the cooling member 528 and the glue coating head 511 are respectively located on opposite sides of the pole piece 90. In this way, when the glue coating head 511 is coating one side surface of the pole piece 90 with glue, the cooling member 528 can cool the surface of the pole piece 90 on the other side corresponding to the glue coating head 511. The cooling member 528 cools the pole piece 90 to cool the glue applied on the pole piece 90. In some embodiments, the opposite surfaces of the pole piece 90 are coated with glue. When the surface of the pole piece 90 facing the cooling member 528 has been coated with glue, the glue coating head 511 may melt the glue on the surface of the pole piece 90 facing the cooling member 528 when coating the other surface of the pole piece 90. If not processed, the glue will adhere to the first back roller 521 or the second back roller 522, and may also adhere to other components. At this time, the cooling member 528 can cool the melted glue to solidify it, and the glue will not adhere to the first back roller 521 or the second back roller 522 and other components.

[0116] The cooling member 528 can realize rapid solidification of the glue layer on the pole piece 90 and prevent the glue layer on the pole piece 90 from adhering to other components.

[0117] In some embodiments, the surface of the glue coating head 511 for contacting and coating the part to be glued is a curved surface.

[0118] The surface of the glue coating head 511 for contacting and coating the part to be coated with glue is the surface of the glue coating head 511 that contacts the pole piece 90 when coating the pole piece 90 with glue. This surface is arc-shaped, and the direction of all the arc surfaces is the same as the movement direction of the pole piece 90, so that the pole piece 90 can move more smoothly at the glue coating head 511, so that the pole piece 90 can pass through the glue coating head 511 smoothly, and the belt is not easily broken.

[0119] The curved surface of the glue coating head 511 can make the coating on the pole piece 90 more uniform, and also make the pole piece 90 smoother when passing through the glue coating head 511 .

[0120] In order to solve the above technical problems, another technical solution adopted by this application is to provide a glue coating device. Figure 7The gluing equipment includes at least two transport rollers 71 and a gluing device 50 disposed between two adjacent transport rollers 71 , and the gluing device 50 is any one of the gluing devices 50 described above.

[0121] The transport roller 71 is a roller for transporting the pole piece 90, and can be an active roller or a passive roller, or partly an active roller and partly a passive roller. When the transport roller 71 is a passive roller, the gluing device has another component to drive the pole piece 90 to move. There can be multiple transport rollers 71, and the gluing device 50 only needs to be set between two adjacent transport rollers 71. According to needs, multiple gluing devices 50 can also be set.

[0122] The support for the pole piece 90 is achieved by setting a first back roller 521 and a second back roller 522, and the glue coating head 511 is located between the first back roller 521 and the second back roller 522, so that flexible contact between the glue coating head 511 and the pole piece 90 can be achieved. When there are protrusions or wrinkles on the edge of the pole piece 90, automatic adjustment is achieved through flexible contact, and the belt breakage problem will not occur, so continuous glue coating of the pole piece 90 can be achieved.

[0123] In some specific application scenarios, in order to solve the problem that the pole piece is prone to glue breaking during glue coating, the glue coating device 50 of the present application includes a glue coating platform 52 and a glue coating assembly 51. The glue coating platform 52 includes a first back roller 521 and a second back roller 522, and the first back roller 521 and the second back roller 522 are parallel and spaced apart. The glue coating assembly 51 includes a glue coating head 511, and the glue coating head 511 is located between the first back roller 521 and the second back roller 522 in the glue coating state. Among them, the axial direction of the first back roller 521 and the second back roller 522 is the first direction, and the arrangement direction of the first back roller 521 and the second back roller 522 is the second direction, and the first direction is perpendicular to the second direction. The glue coating device 50 also includes a first tensioning roller 523 and a second tensioning roller 524. The first tensioning roller 523 is arranged on the side of the first back roller 521 away from the second back roller 522, and the second tensioning roller 524 is arranged on the side of the second back roller 522 away from the first back roller 521. The first tensioning roller 523 and the second tensioning roller 524 are parallel to the first back roller 521 or the second back roller 522. The gluing assembly 51 also includes a gluing power source 512 and a flow control component, the flow control component includes a flow monitor 513 and a gear pump 514, the flow monitor 513 is connected to the glue delivery or storage device 60, the flow monitor 513 is also connected to the gear pump 514, and the gear pump 514 is connected to the gluing power source 512 and the gluing head 511. The gluing platform 52 also includes a pressure sensor 526, an elastic member 527, a bearing plate 525 and a cooling member 528. The pressure sensor 526 is connected to the first back roller 521 and / or the second back roller 522. The pressure sensor 526 is also coupled to the first moving component 53. The pressure sensor 526 is used to sense the pressure at the first back roller 521 and / or the second back roller 522, and convert the pressure into a signal to send to the first moving component 53, so that the first moving component 53 adjusts the position of the glue coating assembly 51 or the glue coating head 511 in the third direction. The pressure sensor 526 is connected to the first back roller 521 and / or the second back roller 522 through an elastic member 527. The bearing plate 525 is rotatably connected to the first back roller 521 and the second back roller 522. One end of the elastic member 527 is connected to the bearing plate 525, and the other end is connected to the pressure sensor 526. The cooling member 528 is arranged on the surface of the bearing plate 525 facing the first back roller 521 and the second back roller 522, and is located between the projections of the first back roller 521 and the second back roller 522 on the bearing plate 525. The surface of the glue coating head 511 for contacting and coating the part to be glued is an arc surface.

[0124] The first back roller 521 and the second back roller 522 are provided to support the pole piece 90, and the glue coating head 511 is located between the first back roller 521 and the second back roller 522, so that the glue coating head 511 can be in flexible contact with the pole piece 90. When there are protrusions or wrinkles on the edge of the pole piece 90, automatic adjustment can be achieved through flexible contact, and the problem of belt breakage will not occur, so that continuous glue coating of the pole piece 90 can be achieved. The arrangement of the pressure sensor 526, the elastic member 527 and the bearing plate 525 can enable the glue coating head 511 to automatically adjust the pressure on the pole piece 90, and it is not easy to break the pole piece 90. The cooling member 528 can achieve rapid solidification of the glue layer on the pole piece 90 to prevent the glue layer on the pole piece 90 from adhering to other components. The curved surface of the glue coating head 511 can make its coating on the pole piece 90 more uniform, and also make the pole piece 90 smoother when passing through the glue coating head 511.

[0125] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A glue coating device, characterized in that: The glue coating device comprises: A glue coating platform, the glue coating platform comprising a first back roller and a second back roller, the first back roller and the second back roller are parallel and spaced apart; A glue coating assembly, the glue coating assembly comprising a glue coating head, the glue coating head being located between the first backing roller and the second backing roller in a glue coating state; The axial direction of the first back roller and the second back roller is a first direction, the arrangement direction of the first back roller and the second back roller is a second direction, and the first direction is perpendicular to the second direction.

2. The gluing device according to claim 1, characterized in that: The gluing device also includes a first tensioning roller and a second tensioning roller. The first tensioning roller is arranged on a side of the first back roller away from the second back roller, and the second tensioning roller is arranged on a side of the second back roller away from the first back roller. The first tensioning roller and the second tensioning roller are both parallel to the first back roller or the second back roller.

3. The gluing device according to claim 1 or 2, characterized in that: The glue coating assembly also includes a glue coating power source and a flow control component, the glue coating power source is connected to the flow control component, and the flow control component is connected to the glue coating head. The glue coating power source controls the flow control component to supply glue to the glue coating head, and the flow control component feeds back the amount of glue flowing into the glue coating head to the glue coating power source, so that the glue coating power source adjusts the power output to the flow control component, thereby controlling the flow rate of glue supplied by the flow control component to the glue coating head.

4. The gluing device according to claim 3, characterized in that: The flow control component includes a flow monitor and a gear pump. The flow monitor is connected to a glue delivery or storage device. The flow monitor is also connected to the gear pump. The gear pump is connected to the glue application power source and the glue application head.

5. The gluing device according to claim 4, characterized in that: The flow monitor is a passive gear pump.

6. The gluing device according to claim 1, characterized in that: There are at least two gluing components, and at least two of the gluing components are arranged at intervals.

7. The gluing device according to claim 6, characterized in that: At least two glue coating components are arranged along the first direction.

8. The gluing device according to claim 1, characterized in that: The gluing device further includes a first moving component, which is connected to the gluing assembly or the gluing head to drive the gluing assembly or the gluing head to move along a third direction, and the third direction is perpendicular to the first direction and the second direction.

9. The gluing device according to claim 8, characterized in that: The first moving component includes a first power source, a first connecting rod and a first connecting plate, the first power source is connected to the first end of the first connecting rod, the second end of the first connecting rod is connected to the first connecting plate, the first connecting plate is connected to the gluing assembly or the gluing head, the first power source drives the first connecting rod to move, the first connecting rod drives the first connecting plate to move, and the first connecting plate drives the gluing assembly or the gluing head to move.

10. The gluing device according to claim 8 or 9, characterized in that: The gluing device further comprises a second moving component, which is connected to the first moving component and drives the first moving component to move along the first direction, so that the gluing assembly or the gluing head can move along the first direction.

11. The glue coating device according to claim 10, characterized in that: The second moving component includes a second power source, a second connecting rod and a second connecting plate, the second power source is connected to the first end of the second connecting rod, the second end of the second connecting rod is connected to the second connecting plate, the second connecting plate is connected to the first moving component, the second power source drives the second connecting rod to move, and the second connecting rod drives the second connecting plate to move, so that the first moving component, the glue coating assembly or the glue coating head can move along the first direction.

12. The glue coating device according to claim 11, characterized in that: The first moving component is arranged in a one-to-one correspondence with the glue coating component. When there are at least two first moving components, there are also at least two second power sources, second connecting rods and second connecting plates. Each second power source, second connecting rod and second connecting plate corresponds to one first moving component.

13. The gluing device according to claim 8, characterized in that: The gluing platform also includes a pressure sensor, which is connected to the first back roller and / or the second back roller. The pressure sensor is also coupled to the first moving component. The pressure sensor is used to sense the pressure at the first back roller and / or the second back roller, and convert the pressure into a signal to send to the first moving component, so that the first moving component adjusts the position of the gluing assembly or the gluing head in the third direction.

14. The glue coating device according to claim 13, characterized in that: The pressure sensor is connected to the first back roller and / or the second back roller via an elastic member.

15. The gluing device according to claim 14, characterized in that: The glue coating platform further includes a bearing plate, which is rotatably connected to the first back roller and the second back roller. One end of the elastic member is connected to the bearing plate, and the other end is connected to the pressure sensor.

16. The gluing device according to claim 15, characterized in that: The glue coating platform further includes a cooling member, which is disposed on a surface of the carrying plate facing the first back roller and the second back roller and is located between projections of the first back roller and the second back roller on the carrying plate.

17. The gluing device according to claim 1, characterized in that: The surface of the glue coating head for contacting and coating the part to be glued is an arc surface.

18. A glue coating device, characterized in that: The gluing equipment comprises at least two transport rollers and a gluing device arranged between two adjacent transport rollers, and the gluing device is the gluing device according to any one of claims 1-17.

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