Kiss coating device and battery production system

Abstract

The utility model relates to the technical field of lithium battery production equipment, in particular to a kiss coating device and a battery production system. The kiss coating device comprises a first adjusting mechanism and a second adjusting mechanism; the first adjusting mechanism and the second adjusting mechanism are both connected with the coating die head; the first adjusting mechanism drives the coating die head to move in the first direction so as to adjust the distance between the lip and the lower surface of the current collector; and the second adjusting mechanism drives the coating die head to rotate so as to adjust the angle between the lip and the current collector. The coating die head is driven by the first adjusting mechanism to move in the first direction, the distance between the lip and the lower surface of the current collector can be adjusted, and the lower surface of the current collector is prevented from being scratched by the lip; the second adjusting mechanism drives the coating die head to rotate, and the angle between the lip and the current collector can be adjusted, so that the coating thickness of the kiss coating is controlled. And the first adjusting mechanism and the second adjusting mechanism are matched, so that the coating quality can be well controlled, and the subsequently prepared lithium ion battery is higher in safety and longer in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production equipment, and in particular to a kiss coating device and a battery production system. Background Art

[0002] The working principle of slot coating is to coat the slurry onto the substrate along the slit of the coating die under a certain pressure and flow rate. Kiss coating is a method of coating the slurry onto the lower surface of the substrate with the slit of the coating die facing upwards.

[0003] During the production of lithium battery pole pieces, both sides of the substrate need to be coated. After one side of the substrate is coated, the coated substrate is dried and then coated on the other side. In this way, two drying processes are required, resulting in high costs and low coating efficiency.

[0004] Kiss coating can coat both the upper and lower sides of the substrate at the same time, so only one drying step is required, which can improve coating efficiency and reduce production costs. However, how to improve the coating quality of kiss coating is a difficult problem that needs to be solved in the art.

[0005] In view of this, the present application proposes a kiss coating device and a battery production system to improve the coating quality of kiss coating. Utility Model Content

[0006] The main purpose of the utility model is to provide a kiss coating device to improve the coating quality of kiss coating. The utility model also provides a battery production system, including the above-mentioned kiss coating device.

[0007] In order to achieve the above-mentioned object, an embodiment of the utility model provides a kiss coating device for a battery production system, wherein the battery production system comprises a coating die head, wherein the coating die head has a lip, and the coating die head coats the lower surface of the current collector through the lip;

[0008] The kiss coating device comprises a first adjustment mechanism and a second adjustment mechanism;

[0009] The first adjustment mechanism and the second adjustment mechanism are both connected to the coating die head;

[0010] The first adjustment mechanism is used to drive the coating die head to move along a first direction to adjust the distance between the lip and the lower surface of the current collector;

[0011] The second adjustment mechanism is used to drive the coating die head to rotate so as to adjust the angle between the lip and the current collector.

[0012] Further, the first adjustment mechanism includes a first driving member and a first mounting member;

[0013] The coating die head is arranged on the second adjusting mechanism, and the second adjusting mechanism is arranged on the first mounting member; the first driving member is transmission-connected with the first mounting member, and drives the first mounting member to move along the first direction.

[0014] Further, the second adjustment mechanism includes a second driving member and a second mounting member;

[0015] The coating die head is arranged on the second mounting member, and the second mounting member is rotatably arranged on the first mounting member; the second driving member is transmission-connected with the second mounting member, and the second driving member drives the coating die head to rotate by driving the second mounting member to rotate.

[0016] Further, it also includes a supporting mechanism and a third adjusting mechanism;

[0017] The supporting mechanism is arranged at the lip and is used to support the current collector; the third adjusting mechanism is connected to the supporting mechanism and is used to drive the supporting mechanism to move along the second direction to adjust the distance between the current collector and the lip.

[0018] Further, the support mechanism includes a support roller and a first support seat;

[0019] The first support seat is disposed on the coating die head and can slide on the coating die head along the second direction; the support roller is rotatably disposed on the first support seat, and the axial direction of the support roller is parallel to the length direction of the lip;

[0020] The third adjustment mechanism is transmission-connected to the first support seat, and drives the first support seat to slide on the coating die head along the second direction.

[0021] Furthermore, the third adjustment mechanism is a micrometer head, and the micrometer head is arranged on the coating die head.

[0022] Further, it also includes stabilizing mechanisms;

[0023] Along the conveying direction of the current collector, the stabilizing mechanism is disposed downstream of the coating die head, and the stabilizing mechanism is used to enable the current collector to be conveyed stably.

[0024] Furthermore, the stabilizing mechanism includes a second support seat and stabilizing rollers spaced apart from each other, the two stabilizing rollers are rotatably disposed on the second support seat, and the two side edges of the current collector can pass between the two stabilizing rollers.

[0025] Furthermore, the positions of the two stabilizing rollers on the second supporting seat can be adjusted;

[0026] and / or;

[0027] The position of the second support seat on the battery production system can be adjusted.

[0028] Furthermore, it also includes a side sliding mechanism;

[0029] The coating die head is also connected to the side sliding mechanism, and the side sliding mechanism is used to drive the coating die head to slide out of the battery production system.

[0030] Another embodiment of the present invention provides a battery production system, including the kiss coating device described in the above embodiment.

[0031] Beneficial effects of the utility model:

[0032] The utility model provides a kiss coating device, which is used in a battery production system. The battery production system includes a coating die head, and the coating die head has a lip. The coating die head coats the lower surface of the current collector through the lip; the kiss coating device includes a first adjustment mechanism and a second adjustment mechanism; the first adjustment mechanism and the second adjustment mechanism are both connected to the coating die head; the first adjustment mechanism is used to drive the coating die head to move along a first direction to adjust the distance between the lip and the lower surface of the current collector; the second adjustment mechanism is used to drive the coating die head to rotate to adjust the angle between the lip and the current collector.

[0033] By placing the coating die head on the kiss coating device, when the lower surface of the current collector is kiss coated, the coating die head is driven to move in the first direction by the first adjustment mechanism, and the distance between the lip and the lower surface of the current collector can be adjusted, so as to avoid excessive force between the current collector and the lip, which causes the lip to scratch the lower surface of the current collector and affect the coating quality; and the second adjustment mechanism drives the coating die head to rotate, and can adjust the angle between the lip and the current collector, so that a gap is generated between the lip and the lower surface of the current collector, so that the coating thickness of the kiss coating can be controlled, thereby controlling the coating quality. Therefore, through the cooperation of the first adjustment mechanism and the second adjustment mechanism, the coating quality of the kiss coating can be well controlled, so that the subsequently prepared lithium-ion battery is safer and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1A schematic diagram of the structure of a battery production system provided by an embodiment of the utility model;

[0036] Figure 2 A schematic diagram of the structure of the kiss coating device and the coating die head provided in the embodiment of the utility model;

[0037] Figure 3 A partial structural schematic diagram of a side sliding mechanism provided in an embodiment of the utility model.

[0038] Icons: 11- coating die; 12- frame; 121- first mounting plate; 13- die mounting plate;

[0039] 2-first adjustment mechanism; 21-first driving member; 22-first mounting member; 221-first horizontal plate; 222-first vertical plate; 23-first slide rail; 24-first slide block;

[0040] 3-second adjusting mechanism; 31-second driving member; 32-second mounting member;

[0041] 4-support mechanism; 41-first support seat; 42-support roller; 43-second motor;

[0042] 5- The third regulating mechanism;

[0043] 6-stabilizing mechanism; 61-second supporting seat; 62-stabilizing roller;

[0044] 7-side sliding mechanism; 71-third mounting member; 711-second horizontal plate; 712-second vertical plate; 72-third driving member; 73-screw; 74-screw nut; 75-second slide rail; 76-second slider. DETAILED DESCRIPTION

[0045] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] like Figures 1 to 3As shown, one embodiment of the utility model provides a kiss coating device for a battery production system, the battery production system includes a coating die 11, the coating die 11 has a lip, and the coating die 11 coats the lower surface of the current collector through the lip; the kiss coating device includes a first adjustment mechanism 2 and a second adjustment mechanism 3; the first adjustment mechanism 2 and the second adjustment mechanism 3 are both connected to the coating die 11; the first adjustment mechanism 2 is used to drive the coating die 11 to move along a first direction to adjust the distance between the lip and the lower surface of the current collector; the second adjustment mechanism 3 is used to drive the coating die 11 to rotate to adjust the angle between the lip and the current collector.

[0047] The kiss coating device provided in this embodiment is applied to a battery production system, and the battery production system is used to produce lithium-ion batteries. The lithium-ion battery includes a positive electrode plate and a negative electrode plate. The positive electrode plate is composed of a positive electrode current collector and a positive electrode powder coating layer on both sides of the positive electrode current collector, and the negative electrode plate is composed of a negative electrode current collector and a negative electrode powder coating layer on both sides of the negative electrode current collector. The kiss coating device in this embodiment can be used for coating the lower surface of the positive electrode current collector, and can also be used for coating the lower surface of the negative electrode current collector. Therefore, the subsequent description is referred to as the pole plate and the current collector. In this embodiment, the powder coating layer is coated on the lower surface of the current collector by the coating die 11 on the kiss coating device, and the powder coating layer is coated on the upper surface of the current collector by the remaining coating die heads 11, so that the pole plate can be obtained.

[0048] The battery production system includes a coating die 11, and the coating die 11 has a lip, which is the slit mentioned above. The coating die 11 is assembled on a kiss coating device. The kiss coating device includes a first adjustment mechanism 2 and a second adjustment mechanism 3. The first adjustment mechanism 2 and the second adjustment mechanism 3 are both connected to the coating die 11, wherein the first adjustment mechanism 2 can be directly connected to the coating die 11, and the second adjustment mechanism 3 is indirectly connected to the coating die 11 by connecting to the first adjustment mechanism 2; the second adjustment mechanism 3 can be directly connected to the coating die 11, and the first adjustment mechanism 2 is indirectly connected to the coating die 11 by connecting to the second adjustment mechanism 3; the first adjustment mechanism 2 and the second adjustment mechanism 3 can also be connected to the coating die 11 respectively. The first adjustment mechanism 2 is used to drive the coating die 11 to move in a first direction so that the coating die 11 can move in a direction close to or away from the current collector, thereby adjusting the distance between the lip of the coating die 11 and the lower surface of the current collector. The second adjustment mechanism 3 is used to drive the coating die head 11 to rotate, so as to rotate the lip on the coating die head 11, thereby adjusting the angle between the lip of the coating die head 11 and the current collector.

[0049] The kiss coating device provided in this embodiment is provided with a coating die head 11 on the kiss coating device. When the lower surface of the current collector is kiss coated, the coating die head 11 is driven to move in the first direction by the first adjustment mechanism 2, and the distance between the lip and the lower surface of the current collector can be adjusted, so as to avoid excessive force between the current collector and the lip, which causes the lip to scratch the lower surface of the current collector and affect the coating quality; and the second adjustment mechanism 3 drives the coating die head 11 to rotate, and can adjust the angle between the lip and the current collector, so that a gap is generated between the lip and the lower surface of the current collector, so that the coating thickness of the kiss coating can be controlled, thereby controlling the coating quality. Therefore, through the cooperation of the first adjustment mechanism 2 and the second adjustment mechanism 3, the coating quality of the kiss coating can be well controlled, so that the lithium-ion battery prepared later is safer and has a longer service life.

[0050] In this embodiment, the first direction can be a vertical direction, and the first adjusting mechanism 2 drives the coating die head 11 to move in the vertical direction, so as to control the distance between the lip and the lower surface of the current collector; or, the first direction can also be a direction having a certain angle with the vertical direction, wherein this angle needs to be an acute angle, and the first adjusting mechanism 2 drives the coating die head 11 to move in an oblique upward or downward direction, which can also achieve the problem of controlling the distance between the lip and the lower surface of the current collector.

[0051] The kiss coating device provided by the embodiment of the utility model is as follows Figures 1 to 3 As shown, the first adjustment mechanism 2 includes a first driving member 21 and a first mounting member 22; the coating die head 11 is arranged on the second adjustment mechanism 3, and the second adjustment mechanism 3 is arranged on the first mounting member 22; the first driving member 21 is transmission-connected to the first mounting member 22, and drives the first mounting member 22 to move along the first direction.

[0052] In this embodiment, since the second adjusting mechanism 3 has a higher precision requirement when driving the coating die 11 to rotate, it is preferred that the second adjusting mechanism 3 is arranged on the first adjusting mechanism 2, and the coating die 11 is arranged on the second adjusting mechanism 3. That is, the second adjusting mechanism 3 is directly connected to the coating die 11, and the first adjusting mechanism 2 is indirectly connected to the coating die 11 through the second adjusting mechanism 3. Further, the first adjusting mechanism 2 includes a first driving member 21 and a first mounting member 22. The second adjusting mechanism 3 is rotatably mounted on the first mounting member 22, the first driving member 21 is connected to the first mounting member 22, and drives the first mounting member 22 to move in the first direction, thereby driving the second adjusting mechanism 3 arranged on the first mounting member 22, and the coating die 11 arranged on the second adjusting mechanism 3 to move in the first direction.

[0053] Optionally, in this embodiment, the first driving member 21 is a first telescopic cylinder, which can be a pneumatic cylinder, an oil cylinder or an electric cylinder, etc., and has high precision, and can prevent the coating die head 11 from damaging the current collector when adjusting the position of the coating die head 11. The first telescopic cylinder drives the first mounting member 22 to move in the first direction by telescoping. The battery production system also includes a frame 12, and the first telescopic cylinder has a cylinder end and a piston end. The cylinder end of the first telescopic cylinder is fixed on the frame 12, and the piston end of the first telescopic cylinder is connected to the first mounting member 22. The first mounting member 22 includes a first transverse plate 221, and the second adjustment mechanism 3 is rotatably mounted on the first transverse plate 221. Preferably, the first transverse plate 221 is horizontally arranged, and correspondingly, the first telescopic cylinder is vertically arranged, and the first telescopic cylinder is fixedly connected to the lower surface of the first transverse plate 221. The first transverse plate 221 has a large bearing surface, which can ensure that the coating die head 11 arranged on the first transverse plate 221 can be stably coated.

[0054] Further, in the present embodiment, the first mounting member 22 further includes a first vertical plate 222 perpendicular to the first horizontal plate 221. That is, the first mounting member 22 is in an L-shaped structure. The first horizontal plate 221 and the first vertical plate 222 may be integrally formed or may be a split structure, and the first horizontal plate 221 and the first vertical plate 222 may be connected together by welding or bolting. In order to ensure the stability of the first mounting member 22 when it moves along the first direction, a first slide rail 23 is provided on the frame 12, the first slide rail 23 extends along the first direction, and a first slider 24 cooperating with the first slide rail 23 is provided on the first vertical plate 222, and the first slide rail 23 is slidably connected to the first slider 24. In addition, preferably, two first slide rails 23 are provided, and each first slide rail 23 is correspondingly provided with at least one first slider 24. In order to prevent the first slide rail 23 and the first slider 24 from affecting the coating die head 11, the first slider 24 and the second adjustment mechanism 3 are respectively located on the opposite sides of the first vertical plate 222.

[0055] It is understandable that, in this embodiment, the first mounting member 22 may also be a frame structure, and the first driving member 21 may also be a driving motor, which drives the frame structure to move in the first direction through a sprocket, chain drive, or gear rack drive.

[0056] The kiss coating device provided by the embodiment of the utility model is as follows Figures 1 to 3 As shown, the second adjustment mechanism 3 includes a second driving member 31 and a second mounting member 32; the coating die head 11 is arranged on the second mounting member 32, and the second mounting member 32 is rotatably arranged on the first mounting member 22; the second driving member 31 is transmission-connected with the second mounting member 32, and the second driving member 31 drives the coating die head 11 to rotate by driving the second mounting member 32 to rotate.

[0057] In this embodiment, the second adjustment mechanism 3 includes a second driving member 31 and a second mounting member 32. The coating die head 11 is fixedly mounted on the second mounting member 32, and the second mounting member 32 is rotatably mounted on the first mounting member 22, so that when the second mounting member 32 rotates on the first mounting member 22, the coating die head 11 can rotate synchronously with the second mounting member 32. The second driving member 31 is in transmission connection with the second mounting member 32, and the second driving member 31 drives the second mounting member 32 to rotate, so that the second mounting member 32 drives the coating die head 11 to rotate.

[0058] Preferably, in the present embodiment, the second mounting member 32 is a rotary shaft, and the second driving member 31 is a first motor, so that the second adjusting mechanism 3 can have a higher adjustment accuracy. An axle seat is provided on the first horizontal plate 221 of the first mounting member 22, and the rotary shaft is rotatably arranged in the axle seat. Preferably, two axle seats are provided, and the two axle seats are respectively used to support the two ends of the rotary shaft. The first motor is connected to the rotary shaft through a coupling and other structures. The coating die head 11 is fixedly mounted on the rotary shaft, and the rotary shaft is driven to rotate by the first motor, so that the rotary shaft drives the coating die head 11 to rotate.

[0059] Optionally, in this embodiment, the coating die head 11 and the rotating shaft can be connected by providing a clamp, or a through hole can be opened on the coating die head 11, the rotating shaft is passed through the through hole, and the rotating shaft and the through hole are fixed axially and circumferentially.

[0060] Optionally, in this embodiment, the second driving member 31 may also be an internal combustion engine, a hydraulic motor or a hand wheel.

[0061] Optionally, in this embodiment, the second mounting member 32 may also be a plate-shaped structure, in which case the second mounting member 32 may be mounted on the first mounting member 22 by means of a shaft and a bearing. The second driving member 31 may be transmission-connected to the second mounting member 32 via a gear set, and drive the second mounting member 32 to rotate.

[0062] The kiss coating device provided by the embodiment of the utility model is as follows Figures 1 to 3 As shown, it also includes a supporting mechanism 4 and a third adjusting mechanism 5; the supporting mechanism 4 is arranged at the lip and is used to support the current collector; the third adjusting mechanism 5 is connected to the supporting mechanism 4, and is used to drive the supporting mechanism 4 to move along the second direction to adjust the distance between the current collector and the lip.

[0063] In this embodiment, the kiss coating device also includes a support mechanism 4 for supporting the current collector and a third adjustment mechanism 5 for adjusting the position of the support mechanism 4. Among them, the support mechanism 4 is arranged at the lip of the coating die 11 and is used to support the coating die 11. During the coating process, the lip will contact the current collector. By setting the support mechanism 4 to support the current collector, the force between the lip and the current collector can be adjusted, thereby avoiding the surface of the current collector from being scratched by the lip, and improving the quality of the prepared electrode. The third adjustment mechanism 5 is connected to the support mechanism 4 and is used to adjust the position of the support mechanism 4, so that the support mechanism 4 can better support the current collector and improve the coating quality of the coating die 11.

[0064] The kiss coating device provided by the embodiment of the utility model is as follows Figures 1 to 3 As shown, the support mechanism 4 includes a support roller 42 and a first support seat 41; the first support seat 41 is arranged on the coating die head 11, and can slide on the coating die head 11 along the second direction; the support roller 42 is rotatably arranged on the first support seat 41, and the axial direction of the support roller 42 is parallel to the length direction of the lip; the third adjustment mechanism 5 is transmission-connected to the first support seat 41, and drives the first support seat 41 to slide on the coating die head 11 along the second direction.

[0065] In this embodiment, the support mechanism 4 includes a support roller 42 and a first support seat 41. A limit plate is provided on the coating die head 11, and an oblong hole extending in the second direction is provided on the limit plate. A connecting block corresponding to the oblong hole is provided on the first support seat 41, and the first support seat 41 is slidably installed on the coating die head 11 through the connecting block and the oblong hole. The end of the support roller 42 is rotatably arranged in the first support seat 41, and the support roller 42 is rotatably arranged to prevent the support roller 42 from scratching the lower surface of the current collector. Preferably, two first support seats 41 are provided, and the two first support seats 41 are respectively arranged at both ends of the support roller 42 to improve the stability of the support roller 42. As mentioned above, the lip is a narrow and long gap, so the axial direction of the support roller 42 is preferably parallel to the length direction of the lip. The third adjustment mechanism 5 adjusts the position of the first support seat 41 to adjust the position of the support roller 42 to improve the support effect of the support roller 42. When there are multiple first supporting seats 41 , there are also multiple third adjusting mechanisms 5 .

[0066] Furthermore, in this embodiment, the support mechanism 4 also includes a second motor 43, which is transmission-connected to the support roller 42 and drives the support roller 42 to rotate, and the linear speed of the support roller 42 during rotation is the same as the conveying speed of the collector to avoid the support roller 42 scratching the pole piece.

[0067] It is understandable that in this embodiment, a linear slide rail can also be set on the coating die head 11, and a slider that cooperates with the linear slide rail is provided on the first support seat 41, which can also achieve the purpose of sliding the first support seat 41 on the coating die head 11 in this embodiment.

[0068] In this embodiment, the setting of the second direction may refer to the first direction, so it is not described again here.

[0069] The kiss coating device provided by the embodiment of the utility model is as follows Figures 1 to 3 As shown, preferably, the third adjustment mechanism 5 is a differential head, which has a simple structure and high adjustment accuracy, and is more compatible with the use scenario in this embodiment. The differential barrel of the differential head is fixed on the coating die 11, and the measuring rod part is against the first support seat 41.

[0070] Optionally, in the present embodiment, each first support seat 41 may be configured with a plurality of micrometer heads to facilitate adjustment of the position of the first support seat 41 .

[0071] It is understandable that, in this embodiment, the third adjustment mechanism 5 may also be a cylinder, or a screw rod or other structure, which can also achieve the purpose of driving the first support seat 41 to slide on the coating die head 11 along the second direction.

[0072] Optionally, in this embodiment, the support mechanism 4 is disposed upstream of the coating die 11 along the conveying direction of the electrode piece, so as to prevent the support mechanism 4 from affecting the powder coating layer coated on the surface of the current collector by the coating die 11 .

[0073] It can be understood that, in this embodiment, the support mechanism 4 can also be a support plate with a certain curvature, which can also achieve the purpose of supporting the current collector in this embodiment and preventing the lower surface of the current collector from being scratched by the lip.

[0074] The kiss coating device provided by the embodiment of the utility model is as follows Figures 1 to 3 As shown, a stabilizing mechanism 6 is also included; along the conveying direction of the current collector, the stabilizing mechanism 6 is arranged downstream of the coating die head 11, and the stabilizing mechanism 6 is used to ensure that the current collector can be conveyed stably.

[0075] In this embodiment, the kiss coating device further includes a stabilizing mechanism 6, which is used to ensure that the current collector can be stably transported, thereby improving the quality of the subsequently produced lithium-ion battery. Further, along the transport direction of the current collector, the stabilizing mechanism 6 is arranged downstream of the coating die 11 to avoid overly complex structures in some areas of the battery production system.

[0076] The kiss coating device provided by the embodiment of the utility model is as follows Figures 1 to 3As shown, the stabilizing mechanism 6 includes a second support seat 61 and stabilizing rollers 62 spaced apart from each other. Both stabilizing rollers 62 are rotatably disposed on the second support seat 61 , and both side edges of the current collector can pass between the two stabilizing rollers 62 .

[0077] In this embodiment, the stabilizing mechanism 6 includes a second support seat 61 and two stabilizing rollers 62. The two stabilizing rollers 62 are arranged on the second support seat 61 at an interval, and both stabilizing rollers 62 can rotate on the second support seat 61. When in use, the two side edges of the current collector can pass between the two stabilizing rollers 62, and the current collector can be stably transported under the clamping of the two stabilizing rollers 62.

[0078] Optionally, in this embodiment, the stabilizing roller 62 is a wheel-shaped structure, which is only used to clamp the side of the current collector. Accordingly, two supporting mechanisms 4 are provided, and the two supporting mechanisms 4 are respectively used to support the two side edges of the current collector in the length direction.

[0079] It can be understood that, in this embodiment, the stabilizing roller 62 can also be a shaft-shaped structure with a variable diameter, which can also achieve the purpose of clamping the edges of both sides of the current collector in this embodiment to ensure the stability of the current collector transportation.

[0080] The kiss coating device provided by the embodiment of the utility model is as follows Figures 1 to 3 As shown, the positions of the two stabilizing rollers 62 on the second support seat 61 can be adjusted; and / or; the position of the second support seat 61 on the battery production system can be adjusted.

[0081] Preferably, in this embodiment, in order to make the stabilizing mechanism 6 better match the parameters of the current collector, the positions of the two stabilizing rollers 62 on the support seat can be adjusted, or the position of the second support seat 61 on the battery production system can be adjusted, or the above two settings can be used at the same time, and the latter is preferably used in this embodiment.

[0082] In this embodiment, the two stabilizing rollers 62 can be slidably disposed on the second support seat 61 through a roller shaft, or the second support seat 61 can be a sleeve structure, and the positions of the two stabilizing rollers 62 can be fixed by setting locking screws. Alternatively, a plurality of mounting holes for mounting the stabilizing rollers 62 can be set on the second support seat 61, which can also achieve the purpose of adjustable position setting of the stabilizing rollers 62.

[0083] Similarly, the second support seat 61 can be slidably and / or rotatably arranged on the frame 12, or a plurality of installation points of the second support seat 61 can be arranged on the frame 12, so as to realize the adjustable position setting of the second support seat 61 on the battery production system.

[0084] In this embodiment, a first mounting plate 121 is provided on the frame 12 of the battery production system, and the second support seat 61 is installed on the first mounting plate 121 and can slide on the first mounting plate 121. The sliding direction can be set according to the actual use situation, and the sliding of the first support seat 41 can be achieved by setting a slideway on the first mounting plate 121. When the position of the second support seat 61 is determined, the second support seat 61 can be fixed by locking screws to achieve the purpose of stabilizing the current collector.

[0085] The kiss coating device provided by the embodiment of the utility model is as follows Figures 1 to 3 As shown, it also includes a side sliding mechanism 7; the coating die head 11 is also connected to the side sliding mechanism 7, and the side sliding mechanism 7 is used to drive the coating die head 11 to slide out of the battery production system.

[0086] The above content mentioned that the battery production system includes a frame 12, and the coating die 11 is arranged in the frame 12. When the coating die 11 needs to be inspected and repaired, maintenance personnel are required to enter the frame 12, which is very inconvenient. For this reason, in the present embodiment, the kiss coating device also includes a side sliding mechanism 7, which is used to drive the coating die 11 to slide out of the battery production system, specifically, to drive the coating die 11 to slide out of the frame 12 of the battery production system, so as to facilitate maintenance personnel to inspect and repair the coating die 11.

[0087] In this embodiment, the frame 12 is in a long strip structure, and the side sliding mechanism 7 is used to make the coating die head 11 slide out from the side of the frame 12, and the side of the frame 12 is the two sides in the length direction of the frame 12. The side sliding mechanism 7 includes a third mounting member 71 and a third driving member 72. The third mounting member 71 is slidably mounted on the first mounting member 22, and the coating die head 11 and the second adjustment mechanism 3 are mounted on the third mounting member 71. The third driving member 72 is transmission-connected with the third mounting member 71, and drives the third mounting member 71 to slide on the first mounting member 22, so as to drive the coating die head 11 to slide out from the side of the frame 12.

[0088] Specifically, in this embodiment, the third driving member 72 is a third motor, and the side sliding mechanism 7 further includes a screw 73 and a screw nut 74. Among them, the third mounting member 71 is slidably mounted on the L-shaped first mounting member 22, and the third mounting member 71 is also L-shaped, and includes a second horizontal plate 711 and a second vertical plate 712 arranged vertically. During assembly, the first horizontal plate 221 and the second horizontal plate 711 are parallel, and the first vertical plate 222 and the second vertical plate 712 are parallel. The surface of the first horizontal plate 221 facing the second horizontal plate 711 is provided with a second slider 76, the surface of the second horizontal plate 711 facing the first horizontal plate 221 is provided with a second slide rail 75, the surface of the first vertical plate 222 facing the second vertical plate 712 is provided with a second slider 76, and the surface of the second vertical plate 712 facing the first vertical plate 222 is provided with a second slide rail 75, all the second slide rails 75 correspond to the second slider 76 one by one, and the corresponding second slide rails 75 are slidably connected with the second slider 76, so that the first mounting member 22 and the third mounting member 71 can slide relative to each other. The screw nut 74 is fixed on the side of the first transverse plate 221 facing the second transverse plate 711, the screw 73 is rotatably arranged on the side of the second transverse plate 711 facing the first transverse plate 221 through the screw 73 seat, the third motor is connected to the screw 73 through a coupling, and the third motor is also fixed on the second transverse plate 711. When in use, the screw 73 is driven to rotate by the third motor, and under the cooperation of the screw 73 and the screw nut 74, the third mounting member 71 can drive the coating die head 11 to slide out from the side of the frame 12.

[0089] Furthermore, in this embodiment, a die head mounting frame is provided on the second transverse plate 711 away from the second transverse plate 711 , the die head mounting frame is provided with the above-mentioned rotating shaft and the first motor, and the coating die head 11 is fixedly mounted on the rotating shaft.

[0090] The kiss coating device provided in this embodiment, wherein the cylinder end of the first telescopic cylinder is fixed on the frame 12, the piston end of the first telescopic cylinder is connected to the side of the first horizontal plate 221 facing away from the second horizontal plate 711; the first vertical plate 222 is vertically arranged on the first horizontal plate 221, the first vertical plate 222 is provided with a first slider 24, the frame 12 is provided with a first slide rail 23 that matches the first slider 24, and the first slide rail 23 is slidably connected with the corresponding first slider 24. The first horizontal plate 221 is provided with a second slider 76 and a screw nut 74 on the side facing the second horizontal plate 711, the second horizontal plate 711 is provided with a second slide rail 75 on the side facing the first horizontal plate 221, the second vertical plate 712 is vertically arranged on the second horizontal plate 711, the second vertical plate 712 is provided with a second slide rail 75 on the side facing the first vertical plate 222, the first vertical plate 222 is provided with a second slider 76 on the side facing the second vertical plate 712, and the second slide rail 75 is slidably connected with the corresponding second slider 76. The second horizontal plate 711 is provided with a screw 73 rotatably disposed on one side facing the first horizontal plate 221 through a screw 73 seat, and the third motor is fixedly disposed on the second horizontal plate 711 and is connected to the screw 73 through a coupling to drive the screw 73 to rotate. The second horizontal plate 711 is provided with a die head mounting plate 13 on one side facing away from the first horizontal plate 221, and the shaft seats of the first motor and the rotary shaft are both disposed on the die head mounting plate 13, the rotary shaft is rotatably disposed on the shaft seat of the rotary shaft, and the coating die head 11 is fixedly disposed on the rotary shaft.

[0091] Furthermore, the coating die head 11 is provided with a limit plate with an oblong hole, the first support seat 41 is slidably connected to the limit plate, the support roller 42 is rotatably arranged on the first support seat 41, and the second motor 43 is connected to the first support seat 41 through the motor seat, and is connected to the support roller 42 through a coupling transmission. The differential head is arranged on the coating die head 11. The frame 12 is provided with a first mounting plate 121, the second support seat 61 is provided on the first mounting plate 121, and the second support seat 61 is provided with two stabilizing rollers 62 spaced apart from each other. Through the cooperation of the above-mentioned structure, the stability of the coating die head 11 during kiss coating can be achieved, the coating quality can be guaranteed, and the inspection and maintenance of the coating die head 11 can be facilitated.

[0092] Another embodiment of the utility model further provides a battery production system, including the kiss coating device described in any of the above embodiments.

[0093] The battery production system provided in this embodiment includes all the advantages of the above-mentioned kiss coating device, so they are not described again here.

[0094] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0095] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A kiss coating device, used in a battery production system, the battery production system comprising a coating die (11), the coating die (11) having a lip, the coating die (11) coating the lower surface of a current collector through the lip; It is characterized in that The kiss coating device comprises a first adjustment mechanism (2) and a second adjustment mechanism (3); The first adjustment mechanism (2) and the second adjustment mechanism (3) are both connected to the coating die head (11); The first adjustment mechanism (2) is used to drive the coating die head (11) to move along a first direction to adjust the distance between the lip and the lower surface of the current collector; The second adjustment mechanism (3) is used to drive the coating die head (11) to rotate so as to adjust the angle between the lip and the current collector.

2. The kiss coating device according to claim 1, characterized in that: The first adjustment mechanism (2) comprises a first driving member (21) and a first mounting member (22); The coating die head (11) is arranged on the second adjustment mechanism (3), and the second adjustment mechanism (3) is arranged on the first mounting member (22); the first driving member (21) is transmission-connected to the first mounting member (22), and drives the first mounting member (22) to move along a first direction.

3. The kiss coating device according to claim 2, characterized in that: The second adjustment mechanism (3) comprises a second driving member (31) and a second mounting member (32); The coating die head (11) is arranged on the second mounting member (32), and the second mounting member (32) is rotatably arranged on the first mounting member (22); the second driving member (31) is transmission-connected to the second mounting member (32), and the second driving member (31) drives the coating die head (11) to rotate by driving the second mounting member (32) to rotate.

4. The kiss coating device according to any one of claims 1 to 3, characterized in that: It also includes a supporting mechanism (4) and a third adjusting mechanism (5); The supporting mechanism (4) is arranged at the lip and is used to support the current collector; the third adjusting mechanism (5) is connected to the supporting mechanism (4) and is used to drive the supporting mechanism (4) to move along the second direction so as to adjust the distance between the current collector and the lip.

5. The kiss coating device according to claim 4, characterized in that: The support mechanism (4) comprises a support roller (42) and a first support seat (41); The first support seat (41) is arranged on the coating die head (11) and is capable of sliding on the coating die head (11) along a second direction; the support roller (42) is rotatably arranged on the first support seat (41), and the axial direction of the support roller (42) is parallel to the length direction of the lip; The third adjustment mechanism (5) is transmission-connected to the first support seat (41), and drives the first support seat (41) to slide on the coating die head (11) along a second direction.

6. The kiss coating device according to claim 4, characterized in that: The third adjustment mechanism (5) is a micrometer head, and the micrometer head is arranged on the coating die head (11).

7. The kiss coating device according to claim 1, characterized in that: Also included is a stabilizing mechanism (6); Along the conveying direction of the current collector, the stabilizing mechanism (6) is arranged downstream of the coating die head (11), and the stabilizing mechanism (6) is used to enable the current collector to be conveyed stably.

8. The kiss coating device according to claim 7, characterized in that: The stabilizing mechanism (6) comprises a second support seat (61) and stabilizing rollers (62) spaced apart from each other, the two stabilizing rollers (62) being rotatably disposed on the second support seat (61), and the two side edges of the current collector being able to pass between the two stabilizing rollers (62).

9. The kiss coating device according to claim 8, characterized in that: The positions of the two stabilizing rollers (62) on the second supporting seat (61) are adjustable; and / or; The position of the second support seat (61) on the battery production system can be adjusted.

10. The kiss coating device according to claim 1, characterized in that: Also includes a side sliding mechanism (7); The coating die head (11) is also connected to the side sliding mechanism (7), and the side sliding mechanism (7) is used to drive the coating die head (11) to slide out of the battery production system.

11. A battery production system, characterized in that: Comprising a kiss coating device as described in any one of claims 1 to 10.

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