Electrode conveying device, production system and control method

Abstract

The present application discloses a pole piece conveying device, a production system and a control method, which relate to the field of battery production technology. The pole piece conveying device includes: a reeling mechanism, which sequentially releases pole pieces from a plurality of pole piece rolls, wherein the pole pieces are provided with a first waste row section at the front end of the release direction and a second waste row section at the rear end of the release direction, and the pole pieces released from the plurality of pole piece rolls are sequentially connected; a conveying line, wherein the conveying line has a first support member; a coating mechanism, which is provided between the reeling mechanism and the first support member, and is suitable for covering both sides of the first waste row section and / or the second waste row section in the thickness direction with a cleaning film; a waste discharge mechanism, which is provided on the downstream side of the first support member in the pole piece conveying direction, and is used to cut off the first waste row section and the second waste row section. According to the pole piece conveying device of the present application, the action time of coating, cleaning and cutting off the cleaning film coincides with the action time of other processes, which can improve the production efficiency of the production system.

Description

Technical Field

[0001] The present application relates to the field of battery production technology, and in particular to a pole piece conveying device, a production system and a control method. Background Art

[0002] The electrode is an important component in the battery. During the battery production process, a conveyor line is set up to transport the electrode. The conveyor line is provided with electrode supports to support the electrode. As the electrode conveying length accumulates, more debris will accumulate on the electrode supports. Therefore, the electrode supports need to be cleaned. In related technologies, the operation time for cleaning the electrode supports is relatively long, which affects production efficiency. Summary of the Invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a pole piece conveying device and a production system, as well as a control method applied to the production system, which has high production efficiency.

[0004] In the first aspect, an embodiment of the present application provides a pole piece conveying device, comprising: a reeling mechanism, the reeling mechanism is used to sequentially release pole pieces from a plurality of pole piece rolls, the pole pieces are provided with a first waste discharge section at the front end in the releasing direction, the pole pieces are provided with a second waste discharge section at the tail end in the releasing direction, and the pole pieces released from the plurality of pole piece rolls are connected in sequence; a conveying line, the conveying line is used to convey the pole pieces, the conveying line has a first support member; a coating mechanism, the coating mechanism is arranged between the reeling mechanism and the first support member, the coating mechanism is suitable for covering both sides of the first waste discharge section and / or the second waste discharge section in the thickness direction with a cleaning film, the cleaning film is suitable for cleaning the first support member; a waste discharge mechanism, the waste discharge mechanism is arranged on the downstream side of the first support member in the pole piece conveying direction, the waste discharge mechanism is used to cut off the first waste discharge section and the second waste discharge section.

[0005] In the above technical manner, according to the electrode conveying device of the embodiment of the present application, on the one hand, by covering the first waste discharge section and / or the second waste discharge section with a cleaning film, the first support member is cleaned by contacting the cleaning film with the first support member, and the cleaning of the first support member can be completed during the normal conveying of the electrode, and the coating operation is relatively simple. On the other hand, the cleaning film after cleaning can be discharged and removed together with the first waste discharge section and the second waste discharge section. Therefore, the action time of coating, cleaning and removal of the cleaning film coincides with the action time of other processes, which can improve the production efficiency of the production system.

[0006] In some embodiments, the cleaning film includes: a substrate; a first adhesive layer and a second adhesive layer, wherein the first adhesive layer and the second adhesive layer are respectively arranged on both sides of the substrate in the thickness direction, the first adhesive layer is suitable for bonding and connecting with the pole piece, and the second adhesive layer is suitable for contacting with the first support member.

[0007] In the above technical method, by setting the first adhesive layer and the second adhesive layer, the cleaning film can be coated on the electrode and the cleaning film can clean the first support member. The second adhesive layer has a strong cleaning ability and can improve the cleaning effect of the first support member.

[0008] In some embodiments, the viscosity of the second adhesive layer is less than that of the first adhesive layer.

[0009] In the above technical approach, the reliability of the electrode conveying device can be improved during the electrode conveying process.

[0010] In some embodiments, a plurality of cleaning films are covered on one side of the first waste discharge section and / or the second waste discharge section in the thickness direction, and the plurality of cleaning films are arranged at intervals in the conveying direction and / or width direction of the electrode sheet.

[0011] In the above technical approach, the cleaning effect on the first support member can be further improved.

[0012] In some embodiments, in the conveying direction of the electrode, the cleaning film is spaced apart from the end of the first waste discharge section away from the end of the second waste discharge section, and the cleaning film is spaced apart from the end of the second waste discharge section away from the end of the first waste discharge section.

[0013] In the above technical approach, the design difficulty of the electrode conveying device can be reduced, and the probability of residual cleaning film can be reduced when the waste discharge mechanism cuts off the first waste discharge section and the second waste discharge section.

[0014] In some embodiments, the cleaning film includes a first cleaning film, and the laminating mechanism includes: a support plate; a first unwinding roller and a first winding roller, the first unwinding roller and the first winding roller are arranged on the support plate and are located on one side of the thickness direction of the electrode piece, the first unwinding roller and the first winding roller are arranged at intervals in the conveying direction of the electrode piece; a first release film, the first release film is provided with a first attachment section and a first winding section, the first winding section is provided at one end of the first release film in the length direction, the first cleaning film is multiple and is attached to the first attachment section at intervals, the first winding section The roll segment is wound on the first winding roller, the first attachment segment is wound on the first unwinding roller, the first attachment segment contacts the first unwinding roller at the start of winding, and when the first cleaning film is located between the first unwinding roller and the first winding roller, the first cleaning film is located on the side of the first attachment segment facing the pole piece; the first pressure roller, the first pressure roller is movably provided on the support plate, and is located on the side of the first release film away from the pole piece, the first pressure roller is suitable for pushing the first attachment segment between the first unwinding roller and the first winding roller to contact the pole piece.

[0015] In the above technical approach, the design difficulty of the electrode cleaning device can be reduced, and the film cutting process of the film cutting component can be omitted, thereby further reducing the design difficulty of the electrode cleaning device.

[0016] In some embodiments, the laminating mechanism further includes: a first driving member, a second driving member and a third driving member, the first driving member, the second driving member and the third driving member are all arranged on the support plate, the first driving member is connected to the first unwinding roller, the second driving member is connected to the first winding roller, and the third driving member is connected to the first pressure roller.

[0017] In the above technical manner, during the lamination process of the first cleaning film, the first unwinding roller, the first winding roller and the first pressing roller can perform corresponding actions.

[0018] In some embodiments, the electrode conveying device has a control unit, and the laminating mechanism also includes: a first sensor, the first sensor is used to detect the position of the first cleaning film on the first attachment section tensioned between the first unwinding roller and the first winding roller, the first sensor, the first drive member, the second drive member and the third drive member are all electrically connected to the control unit.

[0019] In the above technical approach, by providing the first sensor, the first driving member, the second driving member and the third driving member, automatic lamination of the first cleaning film can be achieved, and the position accuracy of the lamination can be improved.

[0020] In some embodiments, the laminating mechanism also includes: a first cooperating roller, the first cooperating roller is arranged on the side of the pole piece away from the first pressure roller, the pole piece is supported on the first cooperating roller, and the first pressure roller is suitable for pressing the first attachment section onto the pole piece on the first cooperating roller.

[0021] In the above technical approach, the connection strength and reliability between the electrode and the first cleaning film can be improved.

[0022] In some embodiments, the cleaning film also includes a second cleaning film, and the laminating mechanism also includes: a second unwinding roller and a second winding roller, the second unwinding roller and the second winding roller are arranged on the support plate and on the other side of the thickness direction of the electrode, and the second unwinding roller and the second winding roller are arranged at intervals in the conveying direction of the electrode; a second release film, the second release film is provided with a second attachment section and a second winding section, the second winding section is provided at one end of the second release film in the length direction, the second cleaning film is multiple and attached to the second attachment section at intervals, the second winding section is wound on the second winding roller, the second attachment section is wound on the second unwinding roller, and the second attachment section contacts the second unwinding roller at the start of winding, the second cleaning film is located between the second unwinding roller and the second winding roller, and the second cleaning film is located on the side of the second attachment section facing the electrode; a second pressing roller, the second pressing roller is movably provided on the support plate and is located on the side of the second release film away from the electrode, and the second pressing roller is suitable for pushing the second attachment section between the second unwinding roller and the second winding roller to contact the electrode.

[0023] In the above technical approach, the design difficulty of the electrode cleaning device can be reduced, and the film cutting process of the film cutting component can be omitted, thereby further reducing the design difficulty of the electrode cleaning device.

[0024] In some embodiments, the laminating mechanism also includes: a second cooperating roller, the second cooperating roller is arranged on the side of the pole piece away from the second pressure roller, the pole piece is supported on the second cooperating roller, and the second pressure roller is suitable for pressing the second attachment section onto the pole piece on the second cooperating roller.

[0025] In the above technical approach, the connection strength and reliability between the electrode and the second cleaning film can be improved.

[0026] In some embodiments, the first pressing roller and the second pressing roller are adapted to move relative to each other so that the first attachment segment, the pole piece and the second attachment segment are sequentially pressed between the first pressing roller and the second pressing roller.

[0027] In the above technical approach, the structure of the pole piece cleaning device can be simplified, thereby further reducing the design difficulty of the pole piece cleaning device.

[0028] In some embodiments, the laminating mechanism also includes: a fourth driving member, a fifth driving member and a sixth driving member, the fourth driving member, the fifth driving member and the sixth driving member are all arranged on the support plate, the fourth driving member is connected to the second unwinding roller, the fifth driving member is connected to the second winding roller, and the sixth driving member is connected to the second pressure roller.

[0029] In the above technical approach, during the lamination process of the second cleaning film, the second unwinding roller, the second winding roller and the second pressing roller can perform corresponding actions.

[0030] In some embodiments, the electrode conveying device has a control unit, and the laminating mechanism also includes: a second sensor, the second sensor is used to detect the position of the second cleaning film on the second attachment section tensioned between the second unwinding roller and the second winding roller, the second sensor, the fourth drive member, the fifth drive member and the sixth drive member are all electrically connected to the control unit.

[0031] In the above technical approach, by providing the second sensor, the fourth driving member, the fifth driving member and the sixth driving member, automatic lamination of the second cleaning film can be achieved, and the position accuracy of the lamination can be improved.

[0032] In a second aspect, an embodiment of the present application provides a production system, including: a pole piece conveying device of an embodiment of the present application.

[0033] In the above technical approach, the production system according to the embodiment of the present application can improve production efficiency by providing the electrode conveying device according to the embodiment of the present application.

[0034] In some embodiments, there are two electrode sheet conveying devices, which respectively convey positive electrode sheets and negative electrode sheets. The production system also includes: a winding mechanism, which is used to stack and wind the positive electrode sheets and the negative electrode sheets. The winding mechanism is arranged on the downstream side of the waste discharge mechanism of the two electrode sheet conveying devices.

[0035] In the above technical approach, the winding efficiency of the production system for the pole pieces can be improved.

[0036] In a third aspect, an embodiment of the present application provides a control method, which is applied to the production system of the second aspect of the present application, and the control method includes: S1, confirming that there are the first waste row segment and the second waste row segment on the conveyor line; S2, the conveyor line conveys the first waste row segment and the second waste row segment to the active area of ​​the coating mechanism, and the coating mechanism covers the first waste row segment and / or the second waste row segment on both sides in the thickness direction with a cleaning film; S3, the conveyor line drives the first waste row segment and the second waste row segment through the first support member, and the cleaning film cleans the first support member; S4, the conveyor line conveys the first waste row segment and the second waste row segment to the active area of ​​the waste discharge mechanism, and the waste discharge mechanism cuts off the first waste row segment and the second waste row segment.

[0037] In the above technical approach, according to the control method of the embodiment of the present application, the production system can clean the first support member during the electrode conveying process, thereby improving production efficiency.

[0038] In some embodiments, before the coating mechanism covers both sides of the first waste discharge section and / or the second waste discharge section in the thickness direction with a cleaning film, it also includes: S11, confirming that the length of the pole piece passing on the first support member since the last cleaning of the first support member is greater than the set length L.

[0039] In the above technical manner, by determining whether the conveying length of the first supporting member reaches the set length, unnecessary cleaning operations can be reduced, thereby reducing production costs.

[0040] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic diagram of a production system according to an embodiment of the present application;

[0042] Figure 2 is a schematic diagram of a pole piece conveying device according to an embodiment of the present application;

[0043] Figure 3 yes Figure 2 A schematic diagram of the pole piece conveying device from another angle shown in ;

[0044] Figure 4 yes Figure 2 A schematic diagram of the pole piece conveying device shown in another angle;

[0045] Figure 5 is a schematic diagram of a laminating mechanism according to an embodiment of the present application;

[0046] Figure 6 yes Figure 5 A schematic diagram of another angle of the laminating mechanism shown in ;

[0047] Figure 7 yes Figure 5 A schematic diagram of another angle of the laminating mechanism shown in ;

[0048] Figure 8 is a schematic diagram of a pole piece and a cleaning membrane according to an embodiment of the present application;

[0049] Figure 9 is a schematic diagram of a first release film and a first cleaning film according to an embodiment of the present application;

[0050] Figure 10 is a schematic diagram of a first release film and a first cleaning film according to another embodiment of the present application;

[0051] Figure 11 is a schematic diagram of a first release film and a first cleaning film according to another embodiment of the present application;

[0052] Figure 12 is a flow chart of a control method according to an embodiment of the present application;

[0053] Figure 13 is a flow chart of a control method according to another embodiment of the present application.

[0054] Reference numerals:

[0055] 1000. Production system;

[0056] 100. Pole piece conveying device;

[0057] 10. Unwinding mechanism;

[0058] 20. First support member;

[0059] 30. Laminating mechanism; 31. Support plate; 32. First unwinding roller; 321. First driving member; 33. First winding roller; 331. Second driving member; 34. First release film; 341. First attaching section; 35. First pressing roller; 351. Third driving member; 36. First sensor;

[0060] 40. Cleaning film; 41. Substrate; 42. First adhesive layer; 43. Second adhesive layer; 44. First cleaning film;

[0061] 50. First mating roller;

[0062] 61, second unwinding roller; 611, fourth driving member; 62, second winding roller; 621, fifth driving member; 63, second release film; 631, second attaching section; 64, second pressing roller; 641, sixth driving member; 65, second mating roller; 66, second sensor;

[0063] 200, winding mechanism;

[0064] 300, pole piece. DETAILED DESCRIPTION

[0065] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0067] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0068] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0069] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0070] In the description of the embodiments of the present application, the term "plurality" refers to more than two (including two).

[0071] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application.

[0072] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0073] The electrode is an important component in the battery. During the battery production process, a conveyor line is set up to transport the electrode. The conveyor line is provided with electrode supports to support the electrode. As the electrode conveying length accumulates, more debris will accumulate on the electrode supports. Therefore, the electrode supports need to be cleaned. In related technologies, the operation time for cleaning the electrode supports is relatively long, which affects production efficiency.

[0074] Based on the above considerations, in order to reduce the impact of cleaning the electrode support on the conveyor line on production efficiency, the applicant has conducted in-depth research and designed a electrode conveying device. The two electrode connections that need to be cut off in conventional production are covered with a cleaning film, and the cleaning film is used to clean the first support on the conveyor line. When discharging waste, the cleaning film is cut off together with the first and second waste discharge sections. As a result, the action time of coating, cleaning and cutting of the cleaning film coincides with the action time of other processes, which can improve production efficiency.

[0075] Figure 1 is a schematic diagram of a production system according to an embodiment of the present application; Figure 2 is a schematic diagram of a pole piece conveying device according to an embodiment of the present application; Figure 3 yes Figure 2 A schematic diagram of the pole piece conveying device from another angle shown in ; Figure 4 yes Figure 2 A schematic diagram of the pole piece conveying device shown in another angle; Figure 5 is a schematic diagram of a laminating mechanism according to an embodiment of the present application; Figure 6 yes Figure 5A schematic diagram of another angle of the laminating mechanism shown in ; Figure 7 yes Figure 5 A schematic diagram of another angle of the laminating mechanism shown in ; Figure 8 is a schematic diagram of a pole piece and a cleaning membrane according to an embodiment of the present application; Figure 9 is a schematic diagram of a first release film and a first cleaning film according to an embodiment of the present application; Figure 10 is a schematic diagram of a first release film and a first cleaning film according to another embodiment of the present application; Figure 11 is a schematic diagram of a first release film and a first cleaning film according to another embodiment of the present application; Figure 12 is a flow chart of a control method according to an embodiment of the present application; Figure 13 is a flow chart of a control method according to another embodiment of the present application.

[0076] Reference below Figures 1-12 The electrode conveying device 100 according to the first embodiment of the present application is described.

[0077] like Figure 2-Figure 8 As shown, the electrode conveying device 100 includes: an unwinding mechanism 10, a conveying line, a coating mechanism 30 and a waste discharge mechanism.

[0078] Specifically, the unwinding mechanism 10 is used to release the pole pieces 300 on multiple pole piece rolls in sequence. The pole pieces 300 are provided with a first row of waste segments at the front end in the releasing direction, and the pole pieces 300 are provided with a second row of waste segments at the tail end in the releasing direction. The pole pieces 300 released from multiple pole piece rolls are connected in sequence, and the conveyor line is used to convey the pole pieces 300. The conveyor line has a first support member 20. The coating mechanism 30 is provided between the unwinding mechanism 10 and the first support member 20. The coating mechanism 30 is suitable for covering both sides of the first row of waste segments and / or the second row of waste segments in the thickness direction with a cleaning film 40. The cleaning film 40 is suitable for cleaning the first support member 20. The waste discharge mechanism is provided on the downstream side of the first support member 20 in the conveying direction of the pole piece 300. The waste discharge mechanism is used to cut off the first row of waste segments and the second row of waste segments.

[0079] That is to say, the coating mechanism 30 may cover the cleaning film 40 on both sides of the first waste discharge section in the thickness direction, or the coating mechanism 30 may cover the cleaning film 40 on both sides of the second waste discharge section in the thickness direction, or the coating mechanism 30 may cover the cleaning film 40 on both sides of the first waste discharge section and the second waste discharge section. The first support member 20 includes all components that support the electrode 300 on the conveying line between the coating process and the waste discharge process. There may be one first support member 20 or there may be multiple first support members 20.

[0080] It is understandable to those skilled in the art that, during the battery production process, the initial section of the electrode 300 released from the electrode roll, as well as the tail section of the electrode 300 released from the electrode roll when the electrode roll is exhausted, need to be removed for waste during normal production.

[0081] During the operation of the electrode conveying device 100, the electrode material roll is set on the unwinding mechanism 10, the unwinding mechanism 10 gradually unwinds the electrode 300, and the conveying line gradually conveys the electrode 300. At the same time, the first support member 20 supports the electrode 300. When the electrode 300 on a electrode material roll is exhausted, a new electrode material roll is switched on the unwinding mechanism 10, and the first row of waste segments of the new electrode material roll is connected to the second row of waste segments of the old electrode material roll. When the first row of waste segments and the second row of waste segments are transported to the working area of ​​the coating mechanism 30, the coating is completed. The membrane mechanism 30 covers the cleaning film 40 on both sides of the first waste discharge section and / or the second waste discharge section in the thickness direction, and then the electrode 300 continues to be transported with the cleaning film 40. When the cleaning film 40 is transported to the position of the first support member 20, the cleaning film 40 can clean the first support member 20. Then the electrode 300 continues to be transported. When the first waste discharge section and the second waste discharge section are transported to the active area of ​​the waste discharge mechanism, the waste discharge mechanism cuts off the cleaning film 40 together with the first waste discharge section and the second waste discharge section, and then the electrode 300 is transported to the subsequent normal production process.

[0082] Compared with setting up a separate process to clean the first support member 20, a coating mechanism 30 is set between the first support member 20 and the unwinding mechanism 10. When the pole piece 300 is transported at a normal speed, the cleaning film 40 can be covered on both sides of the first row of waste segments and / or the second row of waste segments, and the coating operation is relatively simple, thereby improving the production efficiency of the production system 1000.

[0083] According to the electrode 300 cleaning device of the first aspect embodiment of the present application, on the one hand, by covering the first waste discharge section and / or the second waste discharge section with a cleaning film 40, the first support member 20 is cleaned by the contact between the cleaning film 40 and the first support member 20, the cleaning of the first support member 20 can be completed during the normal transportation of the electrode 300, and the coating operation is relatively simple. On the other hand, the cleaning film 40 after cleaning can be discharged and removed together with the first waste discharge section and the second waste discharge section. Therefore, the action time of coating, cleaning and removal of the cleaning film 40 coincides with the action time of other processes, which can improve the production efficiency of the production system 1000.

[0084] In some embodiments, as Figure 8As shown, the cleaning film 40 includes: a substrate 41, a first adhesive layer 42 and a second adhesive layer 43. The first adhesive layer 42 and the second adhesive layer 43 are respectively arranged on both sides of the substrate 41 in the thickness direction. The first adhesive layer 42 is suitable for bonding and connecting with the electrode 300, and the second adhesive layer 43 is suitable for contacting with the first support member 20.

[0085] Exemplarily, the first supporting member 20 is a roller.

[0086] During the operation of the electrode conveying device 100, when the production system 1000 detects that there are the first waste discharge section and the second waste discharge section on the conveying line, the coating mechanism 30 brings the first adhesive layer 42 of the cleaning film 40 into contact with the first waste discharge section and / or the second waste discharge section, so that the cleaning film 40 covers the first waste discharge section and / or the second waste discharge section, and then as the electrode 300 is conveyed, the second adhesive layer 43 of the cleaning film 40 contacts the first support member 20 and takes away the debris on the first support member 20, thereby achieving the cleaning of the first support member 20.

[0087] By providing the first adhesive layer 42 and the second adhesive layer 43 , the cleaning film 40 can be coated on the pole piece 300 and the cleaning film 40 can clean the first support member 20 . In addition, the second adhesive layer 43 has a stronger cleaning ability, which can improve the cleaning effect of the first support member 20 .

[0088] In some embodiments, the viscosity of the second adhesive layer 43 is less than that of the first adhesive layer 42 .

[0089] For example, the peeling force of the first adhesive layer 42 is greater than 1200 gf / 25 mm, and the peeling force of the second adhesive layer 43 is in the range of 1 gf / 25 mm to 15 gf / 25 mm.

[0090] It can be understood that during the transportation of the electrode 300, when the second adhesive layer 43 contacts the first support member 20 to clean the first support member 20, the first support member 20 will generate a force on the second adhesive layer 43, thereby generating a force between the first adhesive layer 42 and the electrode 300 to tear the first adhesive layer 42 from the electrode 300. When the cleaning film 40 is detached from the electrode 300, the cleaning film 40 will affect the normal transportation of the electrode 300. By making the viscosity of the first adhesive layer 42 greater than the viscosity of the second adhesive layer 43, the force of the first support member 20 on the second adhesive layer 43 can be made smaller than the peeling force of the second adhesive layer 43, thereby reducing the probability of the cleaning film 40 falling off during the transportation of the electrode 300 and improving the reliability of the electrode 300 during transportation.

[0091] In some embodiments, one side of the first and / or second waste discharge sections in the thickness direction is covered with multiple cleaning films 40, and the multiple cleaning films 40 are spaced apart in the conveying direction and / or width direction of the electrode sheet 300. For example, there may be two, three, or four cleaning films 40.

[0092] The multiple cleaning films 40 may be arranged at intervals in the conveying direction of the electrode 300 , the multiple cleaning films 40 may be arranged at intervals in the width direction of the electrode 300 , or the multiple cleaning films 40 may be arranged at intervals in both the conveying direction and the width direction of the electrode 300 .

[0093] When the first waste discharge section and / or the second waste discharge section passes through the first support member 20 , the plurality of cleaning films 40 can clean the first support member 20 , thereby further improving the cleaning effect on the first support member 20 .

[0094] In some embodiments, in the conveying direction of the electrode 300, the cleaning film 40 is spaced apart from the side end of the first waste discharge section away from the second waste discharge section, and the cleaning film 40 is spaced apart from the side end of the second waste discharge section away from the first waste discharge section.

[0095] That is to say, the cleaning film 40 is located at the connection point between the two pole pieces 300, and the inner side of the part needs to be cut off. Therefore, when the coating mechanism 30 is coating, the position accuracy requirement for the coating mechanism 30 is relatively low, which can reduce the design difficulty of the pole piece conveying device 100, and when the waste discharge mechanism cuts off the first waste discharge section and the second waste discharge section, the probability of residual cleaning film 40 can be reduced.

[0096] In some embodiments, the cleaning film 40 includes a first cleaning film 44, such as Figure 2-Figure 7 As shown, the laminating mechanism 30 includes: a support plate 31 , a first unwinding roller 32 , a first winding roller 33 , a first release film 34 and a first pressing roller 35 .

[0097] Specifically, the first unwinding roller 32 and the first winding roller 33 are arranged on the support plate 31 and are located on one side of the thickness direction of the electrode 300. The first unwinding roller 32 and the first winding roller 33 are arranged at intervals in the conveying direction of the electrode 300. The first release film 34 is provided with a first attachment section 341 and a first winding section. The first winding section is provided at one end of the first release film 34 in the length direction. The first cleaning film 44 is multiple and is attached to the first attachment section 341 at intervals. The first winding section is wound on the first winding roller 33, and the first attachment section 341 is wound around On the first unwinding roller 32, the first attachment section 341 contacts the first unwinding roller 32 at the start of winding. When the first cleaning film 44 is located between the first unwinding roller 32 and the first winding roller 33, the first cleaning film 44 is located on the side of the first attachment section 341 facing the pole piece 300. The first pressure roller 35 is movably provided on the support plate 31 and is located on the side of the first release film 34 away from the pole piece 300. The first pressure roller 35 is suitable for pushing the first attachment section 341 between the first unwinding roller 32 and the first winding roller 33 to contact the pole piece 300.

[0098] Among them, such as Figures 9-11 As shown, the plurality of first cleaning films 44 may be arranged at intervals in the length direction of the first release film 34 , or the plurality of first cleaning films 44 may be arranged at intervals in both the length direction and the width direction of the first release film 34 .

[0099] During the operation of the electrode 300 cleaning device, the first unwinding roller 32 and the first winding roller 33 rotate to stretch the first release film 34 between the first unwinding roller 32 and the first winding roller 33. When the first row of waste segments and the second row of waste segments are transported to the active area of ​​the laminating mechanism 30, the first unwinding roller 32 and the first winding roller 33 rotate to stretch the first attachment segment 341 with the first cleaning film 44 between the first unwinding roller 32 and the first winding roller 33. Then, the first pressing roller 35 pushes the first attachment segment 341 carrying the first cleaning film 44. 44 contacts the electrode 300 and makes the first cleaning film 44 adhere to the electrode 300. After the first cleaning film 44 is torn off, the first attachment section 341 is gradually wound onto the first winding roller 33. After a set amount of the first cleaning film 44 is covered on the electrode 300, the first pressure roller 35 moves away from the electrode 300. At the same time, the first unwinding roller 32 and the first winding roller 33 tighten the first release film 34 and move it away from the electrode 300. In this way, the coating process of the coating mechanism 30 on one side of the thickness direction of the electrode 300 can be completed.

[0100] Among them, the structures of the first unwinding roller 32, the first winding roller 33 and the first pressing roller 35 are relatively simple, which can reduce the design difficulty of the electrode 300 cleaning device. A plurality of first cleaning films 44 arranged at intervals are arranged on the first release film 34, which can eliminate the need for setting the film cutting components and the film cutting process, thereby further reducing the design difficulty of the electrode 300 cleaning device.

[0101] In some embodiments, as Figure 3 、 Figure 4 、 Figure 6 and Figure 7 As shown, the laminating mechanism 30 also includes: a first driving member 321, a second driving member 331 and a third driving member 351. The first driving member 321, the second driving member 331 and the third driving member 351 are all arranged on the support plate 31. The first driving member 321 is connected to the first unwinding roller 32, the second driving member 331 is connected to the first winding roller 33, and the third driving member 351 is connected to the first pressing roller 35.

[0102] Exemplarily, the first driving member 321 and the second driving member 331 are driving motors, and the third driving member 351 is a driving cylinder.

[0103] During the operation of the electrode 300 cleaning device, the first driving member 321 and the second driving member 331 respectively drive the first unwinding roller 32 and the first winding roller 33 to rotate to realize the unwinding and winding of the first release film 34, and the third driving member 351 drives the first pressure roller 35 to move toward and away from the electrode 300. Thus, during the coating process of the first cleaning film 44, the first unwinding roller 32, the first winding roller 33 and the first pressure roller 35 can perform corresponding actions.

[0104] In some embodiments, as Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the electrode conveying device 100 has a control unit, and the coating mechanism 30 also includes: a first sensor 36, the first sensor 36 is used to detect the position of the first cleaning film 44 on the first attachment section 341 stretched between the first unwinding roller 32 and the first winding roller 33, the first sensor 36, the first driving member 321, the second driving member 331 and the third driving member 351 are all electrically connected to the control unit.

[0105] Exemplarily, the first sensor 36 is a color difference sensor.

[0106] During the operation of the electrode sheet 300 cleaning device, when the first waste discharge section and the second waste discharge section are transported to the active area of ​​the coating mechanism 30, the first sensor 36 detects the position of the first cleaning film 44 and transmits the information to the control unit. The control unit controls the first driving member 321 and the second driving member 331 to respectively drive the first unwinding roller 32 and the first winding roller 33 to rotate, so that the first cleaning film 44 located at the front end of the unwinding direction moves to the active position of the first pressure roller 35. Then, the control unit controls the third driving member 351 to drive the first pressure roller 35 to push the first cleaning film 44 into contact with the electrode sheet 300. At the same time, the control unit controls the first unwinding roller 32 and the first winding roller 33 to unwind and wind. After a set amount of the first cleaning film 44 is covered on the electrode sheet 300, the control unit controls the third driving member 351 to drive the first pressure roller 35 to move away from the electrode sheet 300. At the same time, the control unit controls the first driving member 321 and the second driving member 331 to respectively drive the first unwinding roller 32 and the first winding roller 33 to rotate, so that the first release film 34 is tensioned and leaves the electrode sheet 300. In this way, the coating process of the first cleaning film 44 on the pole piece 300 can be achieved.

[0107] By providing the first sensor 36 , the first driving member 321 , the second driving member 331 and the third driving member 351 , automatic lamination of the first cleaning film 44 can be achieved, and the position accuracy of lamination can be improved.

[0108] In some embodiments, as Figure 6 and Figure 7 As shown, the laminating mechanism 30 also includes: a first mating roller 50, which is arranged on the side of the pole piece 300 away from the first pressing roller 35, and the pole piece 300 is supported on the first mating roller 50, and the first pressing roller 35 is suitable for pressing the first attachment section 341 onto the pole piece 300 on the first mating roller 50.

[0109] When the coating mechanism 30 coats the first cleaning film 44, when the first pressure roller 35 brings the first cleaning film 44 on the first attachment section 341 into contact with the electrode 300, the first mating roller 50 can cooperate with the first pressure roller 35 to ensure sufficient pressing force between the first cleaning film 44 and the electrode 300, thereby improving the connection strength and reliability of the electrode 300 and the first cleaning film 44.

[0110] In some embodiments, as Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the cleaning film 40 further includes a second cleaning film, and the laminating mechanism 30 further includes: a second unwinding roller 61 , a second winding roller 62 and a second release film 63 .

[0111] Specifically, the second unwinding roller 61 and the second winding roller 62 are arranged on the support plate 31 and are located on the other side of the thickness direction of the electrode 300. The second unwinding roller 61 and the second winding roller 62 are arranged at intervals in the conveying direction of the electrode 300. The second release film 63 is provided with a second attachment section 631 and a second winding section. The second winding section is provided at one end of the second release film 63 in the length direction. The second cleaning film is multiple and is attached to the second attachment section 631 at intervals. The second winding section is wound on the second winding roller 62. The second attachment section 631 is wound at the first On the second unwinding roller 61, the second attachment section 631 contacts the second unwinding roller 61 at the start of winding, the second cleaning film is located between the second unwinding roller 61 and the second winding roller 62, the second cleaning film is arranged on the side of the second attachment section 631 facing the pole piece 300, the second pressure roller 64, the second pressure roller 64 is movably arranged on the support plate 31, and is located on the side of the second release film 63 away from the pole piece 300, the second pressure roller 64 is suitable for pushing the second attachment section 631 between the second unwinding roller 61 and the second winding roller 62 to contact the pole piece 300.

[0112] The plurality of second cleaning films may be arranged at intervals in the length direction of the second release film 63 , or may be arranged at intervals in both the length direction and the width direction of the second release film 63 .

[0113] During the operation of the electrode 300 cleaning device, the second unwinding roller 61 and the second winding roller 62 rotate to stretch the second release film 63 between the second unwinding roller 61 and the second winding roller 62. When the first row of waste segments and the second row of waste segments are transported to the active area of ​​the laminating mechanism 30, the second unwinding roller 61 and the second winding roller 62 rotate to stretch the second attachment segment 631 with the second cleaning film between the second unwinding roller 61 and the second winding roller 62. Then, the second pressing roller 64 pushes the second attachment segment 631 to carry the second cleaning film. The cleaning film contacts the electrode 300 and makes the second cleaning film attached to the electrode 300. After the second cleaning film is torn off, the second attachment section 631 is gradually wound onto the second winding roller 62. After a set amount of the second cleaning film is covered on the electrode 300, the second pressure roller 64 moves away from the electrode 300. At the same time, the second unwinding roller 61 and the second winding roller 62 tighten the second release film 63 and move it away from the electrode 300. In this way, the coating process of the coating mechanism 30 on the other side of the thickness direction of the electrode 300 can be completed.

[0114] Among them, the structures of the second unwinding roller 61, the second winding roller 62 and the second pressing roller 64 are relatively simple, which can reduce the design difficulty of the electrode 300 cleaning device. A plurality of second cleaning films arranged at intervals are arranged on the second release film 63, which can eliminate the need for setting the film cutting components and the film cutting process, thereby further reducing the design difficulty of the electrode 300 cleaning device.

[0115] In some embodiments, as Figure 5 and Figure 6 As shown, the laminating mechanism 30 also includes: a second mating roller 65, which is arranged on the side of the pole piece 300 away from the second pressing roller 64, and the pole piece 300 is supported on the second mating roller 65, and the second pressing roller 64 is suitable for pressing the second attachment section 631 onto the pole piece 300 on the second mating roller 65.

[0116] During the process of laminating the second cleaning film by the laminating mechanism 30, when the second pressing roller 64 brings the second cleaning film on the second attachment section 631 into contact with the electrode 300, the second mating roller 65 can cooperate with the second pressing roller 64 to ensure sufficient pressing force between the second cleaning film and the electrode 300, thereby improving the connection strength and reliability of the electrode 300 and the second cleaning film.

[0117] In some embodiments, as Figure 2-Figure 4 As shown, the first pressing roller 35 and the second pressing roller 64 are adapted to move relative to each other so that the first attachment section 341 , the pole piece 300 and the second attachment section 631 are sequentially pressed between the first pressing roller 35 and the second pressing roller 64 .

[0118] When the coating mechanism 30 is coating, the first pressure roller 35 brings the first cleaning film 44 on the first attachment section 341 into contact with one side of the electrode 300, and the second pressure roller 64 brings the second cleaning film on the second attachment section 631 into contact with the other side of the electrode 300. At the same time, the first pressure roller 35 and the second pressure roller 64 can apply a pressing force on both sides, so that there is sufficient pressing force between the first cleaning film 44 and one side of the electrode 300 and between the second cleaning film and the other side of the electrode 300. Thereby, the connection strength and reliability of the electrode 300 and the first cleaning film 44 and the second cleaning film can be improved.

[0119] By cooperating with the first pressing roller 35 and the second pressing roller 64 to apply a pressing force to the cleaning film 40 and the pole piece 300 , the structure of the pole piece 300 cleaning device can be simplified, thereby further reducing the design difficulty of the pole piece 300 cleaning device.

[0120] In some embodiments, as Figure 3 、 Figure 4 、 Figure 6 and Figure 7 As shown, the laminating mechanism 30 also includes: a fourth driving member 611, a fifth driving member 621 and a sixth driving member 641. The fourth driving member 611, the fifth driving member 621 and the sixth driving member 641 are all arranged on the support plate 31. The fourth driving member 611 is connected to the second unwinding roller 61, the fifth driving member 621 is connected to the second winding roller 62, and the sixth driving member 641 is connected to the second pressing roller 64.

[0121] Exemplarily, the fourth driving member 611 and the fifth driving member 621 are driving motors, and the sixth driving member 641 is a driving cylinder.

[0122] During the operation of the electrode 300 cleaning device, the fourth drive member 611 and the fifth drive member 621 respectively drive the second unwinding roller 61 and the second winding roller 62 to rotate to realize the unwinding and winding of the second release film 63, and the sixth drive member 641 drives the second pressure roller 64 to move toward and away from the electrode 300. Thus, during the second cleaning film lamination process, the second unwinding roller 61, the second winding roller 62 and the second pressure roller 64 can perform corresponding actions.

[0123] In some embodiments, as Figure 2-Figure 7 As shown, the electrode conveying device 100 has a control unit, and the coating mechanism 30 also includes: a second sensor 66, the second sensor 66 is used to detect the position of the second cleaning film on the second attachment section 631 stretched between the second unwinding roller 61 and the second winding roller 62, the second sensor 66, the fourth drive member 611, the fifth drive member 621 and the sixth drive member 641 are all electrically connected to the control unit.

[0124] Exemplarily, the second sensor 66 is a color difference sensor.

[0125] During the operation of the electrode 300 cleaning device, when the first waste discharge section and the second waste discharge section are transported to the active area of ​​the coating mechanism 30, the second sensor 66 detects the position of the second cleaning film and transmits the information to the control unit. The control unit controls the fourth driving member 611 and the fifth driving member 621 to respectively drive the second unwinding roller 61 and the second winding roller 62 to rotate, so that the second cleaning film located at the front end of the unwinding direction moves to the active position of the second pressure roller 64. Then, the control unit controls the sixth driving member 641 to drive the second pressure roller 64 to push the second cleaning film into contact with the electrode 300. At the same time, the control unit controls the second unwinding roller 61 and the second winding roller 62 to unwind and rewind. After a set amount of the second cleaning film is covered on the electrode 300, the control unit controls the sixth driving member 641 to drive the second pressure roller 64 to move away from the electrode 300. At the same time, the control unit controls the fourth driving member 611 and the fifth driving member 621 to respectively drive the second unwinding roller 61 and the second winding roller 62 to rotate, so that the second release film 63 is stretched and leaves the electrode 300. In this way, the coating process of the second cleaning film on the electrode piece 300 can be achieved.

[0126] By providing the second sensor 66 , the fourth driving member 611 , the fifth driving member 621 and the sixth driving member 641 , automatic lamination of the second cleaning film can be achieved, and the position accuracy of the lamination can be improved.

[0127] The production system 1000 according to the second embodiment of the present application includes: the electrode conveying device 100 according to the above-mentioned embodiment of the first aspect of the present application.

[0128] According to the production system 1000 of the second embodiment of the present application, production efficiency can be improved by providing the electrode conveying device 100 according to the first embodiment of the present application.

[0129] In some embodiments, there are two electrode sheet conveying devices 100, and they convey the positive electrode sheet and the negative electrode sheet respectively. Figure 1 As shown, the production system 1000 further includes: a winding mechanism 200 , which is used to stack and wind the positive electrode sheets and the negative electrode sheets. The winding mechanism 200 is arranged on the downstream side of the waste discharge mechanism of the two electrode sheet conveying devices 100 .

[0130] During the operation of the production system 1000, the two electrode sheet conveying devices 100 respectively convey the positive electrode sheets and the negative electrode sheets to the winding mechanism 200, and the winding mechanism 200 stacks and winds the positive electrode sheets and the negative electrode sheets. Before the electrode sheets 300 enter the winding mechanism 200, the waste discharge mechanism will be subjected to waste discharge operations by the electrode sheets 300. When the first support member 20 needs to be cleaned, the coating, cleaning and cutting action time of the cleaning film 40 coincides with the action time of other processes. Thus, the winding efficiency of the production system 1000 for the electrode sheets 300 can be improved.

[0131] The control method according to the third aspect of the present application is applied to the production system 1000 according to the second aspect of the present application, such as Figure 12 As shown, the control method includes:

[0132] S1. Confirm that there are the first and second waste rows on the conveyor line.

[0133] When the electrode material rolls are switched, the first row of waste segments and the second row of waste segments are connected by yellow glue. In this way, a yellow mark area can be formed at the connection between the first row of waste segments and the second row of waste segments. The production system 1000 confirms that there are the first row of waste segments and the second row of waste segments on the conveyor line by detecting whether there is a yellow mark.

[0134] S2. The conveying line conveys the first row of waste segments and the second row of waste segments to the working area of ​​the coating mechanism 30. The coating mechanism 30 covers both sides of the first row of waste segments and / or the second row of waste segments in the thickness direction with the cleaning film 40.

[0135] The production system 1000 confirms whether the first row of waste segments and the second row of waste segments have reached the working area of ​​the coating mechanism 30 by detecting the position of the yellow mark. When the coating mechanism 30 coats the first row of waste segments and / or the second row of waste segments, the electrode 300 can be transported normally.

[0136] S3 , the conveyor line drives the first row of waste segments and the second row of waste segments through the first support member 20 , and the cleaning film 40 cleans the first support member 20 .

[0137] When the cleaning film 40 passes through the first support member 20 , the cleaning film 40 can take away the debris on the first support member 20 , thereby cleaning the first support member 20 .

[0138] S4. The conveying line conveys the first waste discharge segment and the second waste discharge segment to the working area of ​​the waste discharge mechanism, and the waste discharge mechanism cuts off the first waste discharge segment and the second waste discharge segment.

[0139] In the waste discharge structure action area, the waste discharge mechanism cuts the pole pieces 300 of the set length on both sides of the yellow mark to achieve the removal of the first waste discharge segment and the second waste discharge segment.

[0140] In this way, the first support member 20 can be cleaned during the transportation of the pole piece 300 .

[0141] According to the control method of the embodiment of the third aspect of the present application, the production system 1000 can clean the first support member 20 during the transportation of the pole piece 300, thereby improving production efficiency.

[0142] In some embodiments, as Figure 13 As shown, before the film coating mechanism 30 covers both sides of the first row of waste segments and / or the second row of waste segments in the thickness direction with the cleaning film 40, the following steps are further included:

[0143] S11 , confirming that the length of the pole piece 300 passing over the first support member 20 since the last cleaning of the first support member 20 is greater than the set length L.

[0144] Exemplarily, the length L is 20,000 meters.

[0145] It is understandable that there is less dust in the battery production environment, and the debris on the first support member 20 will only affect the electrode 300 when it accumulates to a certain extent. By determining whether the conveying length of the first support member 20 reaches the set length, unnecessary cleaning operations can be reduced, thereby reducing production costs.

[0146] Reference below Figures 1-13 A specific embodiment of the electrode conveying device 100 according to the present application is described.

[0147] Example 1

[0148] The electrode sheet conveying device 100 includes: an unwinding mechanism 10, a conveying line, a coating mechanism 30, a waste discharge mechanism, and a control unit. The unwinding mechanism 10 is used to sequentially discharge the electrode sheets 300 from a plurality of electrode sheet rolls. The electrode sheets 300 are provided with a first waste discharge section at the front end of the discharge direction and a second waste discharge section at the rear end of the discharge direction. The electrode sheets 300 discharged from the plurality of electrode sheet rolls are connected in sequence. The conveying line is used to convey the electrode sheets 300. The conveying line has a first support member 20. The coating mechanism 30 is provided between the unwinding mechanism 10 and the first support member 20. The coating mechanism 30 is suitable for covering both sides of the first waste discharge section and / or the second waste discharge section in the thickness direction with a cleaning film 40. The cleaning film 40 is suitable for cleaning the first support member 20. The waste discharge mechanism is provided on the downstream side of the first support member 20 in the conveying direction of the electrode sheets 300. The waste discharge mechanism is used to cut off the first waste discharge section and the second waste discharge section.

[0149] The cleaning film 40 includes a substrate 41, a first adhesive layer 42, and a second adhesive layer 43. The first adhesive layer 42 and the second adhesive layer 43 are respectively provided on either side of the substrate 41 in the thickness direction. The viscosity of the second adhesive layer 43 is less than that of the first adhesive layer 42. The cleaning film 40 is connected to the electrode 300 via the first adhesive layer 42. The cleaning film 40 cleans the first support member 20 via the second adhesive layer 43. The cleaning film 40 includes a first cleaning film 44 and a second cleaning film. The first cleaning film 44 and the second cleaning film respectively cover either side of the electrode 300 in the thickness direction.

[0150] The laminating mechanism 30 includes a support plate 31, a first sensor 36, a first unwinding roller 32, a first winding roller 33, a first release film 34, a first pressure roller 35, a first driving member 321, a second driving member 331, and a third driving member 351. The first driving member 321, the second driving member 331, and the third driving member 351 are all disposed on the support plate 31. The first driving member 321 is connected to the first unwinding roller 32, the second driving member 331 is connected to the first winding roller 33, and the third driving member 351 is connected to the first pressure roller 35. The first and second driving members 321, 331 are drive motors, and the third driving member 351 is a drive cylinder. The first sensor 36, the first driving member 321, the second driving member 331, and the third driving member 351 are all electrically connected to a control unit.

[0151] The first unwinding roller 32 and the first winding roller 33 are arranged on the support plate 31 and are located on one side of the thickness direction of the electrode 300. The first unwinding roller 32 and the first winding roller 33 are arranged at intervals in the conveying direction of the electrode 300. The first release film 34 is provided with a first attachment section 341 and a first winding section. The first winding section is provided at one end of the first release film 34 in the length direction. The first cleaning film 44 is multiple and is attached to the first attachment section 341 at intervals. The first winding section is wound on the first winding roller 33, and the first attachment section 341 is wound at the first On a unwinding roller 32, the first attachment section 341 contacts the first unwinding roller 32 at the start of winding. When the first cleaning film 44 is located between the first unwinding roller 32 and the first winding roller 33, the first cleaning film 44 is located on the side of the first attachment section 341 facing the pole piece 300. The first pressure roller 35 is movably provided on the support plate 31 and is located on the side of the first release film 34 away from the pole piece 300. The first pressure roller 35 is suitable for pushing the first attachment section 341 between the first unwinding roller 32 and the first winding roller 33 to contact the pole piece 300.

[0152] The laminating mechanism 30 also includes: a second sensor 66, a second unwinding roller 61, a second winding roller 62, a second release film 63, a fourth drive member 611, a fifth drive member 621 and a sixth drive member 641. The fourth drive member 611, the fifth drive member 621 and the sixth drive member 641 are all arranged on the support plate 31. The fourth drive member 611 is connected to the second unwinding roller 61, the fifth drive member 621 is connected to the second winding roller 62, and the sixth drive member 641 is connected to the second pressure roller 64. The fourth drive member 611 and the fifth drive member 621 are drive motors, and the sixth drive member 641 is a drive cylinder. The second sensor 66, the fourth drive member 611, the fifth drive member 621 and the sixth drive member 641 are all electrically connected to the control unit.

[0153] The second unwinding roller 61 and the second winding roller 62 are arranged on the support plate 31 and are located on the other side of the thickness direction of the electrode 300. The second unwinding roller 61 and the second winding roller 62 are arranged at intervals in the conveying direction of the electrode 300. The second release film 63 is provided with a second attachment section 631 and a second winding section. The second winding section is provided at one end of the second release film 63 in the length direction. The second cleaning film is multiple and is attached to the second attachment section 631 at intervals. The second winding section is wound on the second winding roller 62. The second attachment section 631 is wound on the first unwinding roller 61. On the winding roller 32, the second attachment section 631 contacts the second unwinding roller 61 at the start of winding, the second cleaning film is located between the second unwinding roller 61 and the second winding roller 62, and the second cleaning film is arranged on the side of the second attachment section 631 facing the pole piece 300, the second pressure roller 64, the second pressure roller 64 is movably arranged on the support plate 31, and is located on the side of the second release film 63 away from the pole piece 300, the second pressure roller 64 is suitable for pushing the second attachment section 631 between the second unwinding roller 61 and the second winding roller 62 to contact the pole piece 300.

[0154] The first pressing roller 35 and the second pressing roller 64 are adapted to move relative to each other, so that the first attaching section 341 , the pole piece 300 and the second attaching section 631 are sequentially pressed between the first pressing roller 35 and the second pressing roller 64 .

[0155] Example 2

[0156] The electrode sheet conveying device 100 includes: an unwinding mechanism 10, a conveying line, a coating mechanism 30, a waste discharge mechanism, and a control unit. The unwinding mechanism 10 is used to sequentially discharge the electrode sheets 300 from a plurality of electrode sheet rolls. The electrode sheets 300 are provided with a first waste discharge section at the front end of the discharge direction and a second waste discharge section at the rear end of the discharge direction. The electrode sheets 300 discharged from the plurality of electrode sheet rolls are connected in sequence. The conveying line is used to convey the electrode sheets 300. The conveying line has a first support member 20. The coating mechanism 30 is provided between the unwinding mechanism 10 and the first support member 20. The coating mechanism 30 is suitable for covering both sides of the first waste discharge section and / or the second waste discharge section in the thickness direction with a cleaning film 40. The cleaning film 40 is suitable for cleaning the first support member 20. The waste discharge mechanism is provided on the downstream side of the first support member 20 in the conveying direction of the electrode sheets 300. The waste discharge mechanism is used to cut off the first waste discharge section and the second waste discharge section.

[0157] The cleaning film 40 includes a substrate 41, a first adhesive layer 42, and a second adhesive layer 43. The first adhesive layer 42 and the second adhesive layer 43 are respectively provided on either side of the substrate 41 in the thickness direction. The viscosity of the second adhesive layer 43 is less than that of the first adhesive layer 42. The cleaning film 40 is connected to the electrode 300 via the first adhesive layer 42. The cleaning film 40 cleans the first support member 20 via the second adhesive layer 43. The cleaning film 40 includes a first cleaning film 44 and a second cleaning film. The first cleaning film 44 and the second cleaning film respectively cover either side of the electrode 300 in the thickness direction.

[0158] The laminating mechanism 30 includes a support plate 31, a first sensor 36, a first unwinding roller 32, a first winding roller 33, a first release film 34, a first pressure roller 35, a first driving member 321, a second driving member 331, and a third driving member 351. The first driving member 321, the second driving member 331, and the third driving member 351 are all disposed on the support plate 31. The first driving member 321 is connected to the first unwinding roller 32, the second driving member 331 is connected to the first winding roller 33, and the third driving member 351 is connected to the first pressure roller 35. The first and second driving members 321, 331 are drive motors, and the third driving member 351 is a drive cylinder. The first sensor 36, the first driving member 321, the second driving member 331, and the third driving member 351 are all electrically connected to a control unit.

[0159] The first unwinding roller 32 and the first winding roller 33 are arranged on the support plate 31 and are located on one side of the thickness direction of the electrode 300. The first unwinding roller 32 and the first winding roller 33 are arranged at intervals in the conveying direction of the electrode 300. The first release film 34 is provided with a first attachment section 341 and a first winding section. The first winding section is provided at one end of the first release film 34 in the length direction. The first cleaning film 44 is multiple and is attached to the first attachment section 341 at intervals. The first winding section is wound on the first winding roller 33, and the first attachment section 341 is wound at the first On a unwinding roller 32, the first attachment section 341 contacts the first unwinding roller 32 at the start of winding. When the first cleaning film 44 is located between the first unwinding roller 32 and the first winding roller 33, the first cleaning film 44 is located on the side of the first attachment section 341 facing the pole piece 300. The first pressure roller 35 is movably provided on the support plate 31 and is located on the side of the first release film 34 away from the pole piece 300. The first pressure roller 35 is suitable for pushing the first attachment section 341 between the first unwinding roller 32 and the first winding roller 33 to contact the pole piece 300.

[0160] The laminating mechanism 30 also includes: a second sensor 66, a second unwinding roller 61, a second winding roller 62, a second release film 63, a fourth drive member 611, a fifth drive member 621 and a sixth drive member 641. The fourth drive member 611, the fifth drive member 621 and the sixth drive member 641 are all arranged on the support plate 31. The fourth drive member 611 is connected to the second unwinding roller 61, the fifth drive member 621 is connected to the second winding roller 62, and the sixth drive member 641 is connected to the second pressure roller 64. The fourth drive member 611 and the fifth drive member 621 are drive motors, and the sixth drive member 641 is a drive cylinder. The second sensor 66, the fourth drive member 611, the fifth drive member 621 and the sixth drive member 641 are all electrically connected to the control unit.

[0161] The second unwinding roller 61 and the second winding roller 62 are arranged on the support plate 31 and are located on the other side of the thickness direction of the electrode 300. The second unwinding roller 61 and the second winding roller 62 are arranged at intervals in the conveying direction of the electrode 300. The second release film 63 is provided with a second attachment section 631 and a second winding section. The second winding section is provided at one end of the second release film 63 in the length direction. The second cleaning film is multiple and is attached to the second attachment section 631 at intervals. The second winding section is wound on the second winding roller 62. The second attachment section 631 is wound on the first unwinding roller 61. On the winding roller 32, the second attachment section 631 contacts the second unwinding roller 61 at the start of winding, the second cleaning film is located between the second unwinding roller 61 and the second winding roller 62, and the second cleaning film is arranged on the side of the second attachment section 631 facing the pole piece 300, the second pressure roller 64, the second pressure roller 64 is movably arranged on the support plate 31, and is located on the side of the second release film 63 away from the pole piece 300, the second pressure roller 64 is suitable for pushing the second attachment section 631 between the second unwinding roller 61 and the second winding roller 62 to contact the pole piece 300.

[0162] The laminating mechanism 30 further includes: a first mating roller 50 and a second mating roller 65. The first mating roller 50 is disposed on a side of the pole piece 300 away from the first pressing roller 35. The pole piece 300 is supported on the first mating roller 50. The first pressing roller 35 is adapted to press the first attachment section 341 against the pole piece 300 on the first mating roller 50. The second mating roller 65 is disposed on a side of the pole piece 300 away from the second pressing roller 64. The pole piece 300 is supported on the second mating roller 65. The second pressing roller 64 is adapted to press the second attachment section 631 against the pole piece 300 on the second mating roller 65.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A pole piece conveying device, characterized in that: include: An unwinding mechanism (10), the unwinding mechanism (10) is used to sequentially unwind the pole pieces (300) on a plurality of pole piece rolls, the pole pieces (300) being provided with a first row of waste segments at the front end in the unwinding direction, and the pole pieces (300) being provided with a second row of waste segments at the rear end in the unwinding direction, and the pole pieces (300) unwound from the plurality of pole piece rolls being sequentially connected; A conveying line, the conveying line is used to convey the electrode (300), and the conveying line has a first support member (20); a laminating mechanism (30), the laminating mechanism (30) being arranged between the unwinding mechanism (10) and the first supporting member (20), the laminating mechanism (30) being adapted to cover both sides of the first waste discharge section and / or the second waste discharge section in a thickness direction with a cleaning film (40), the cleaning film (40) being adapted to clean the first supporting member (20); A waste discharge mechanism is provided on the downstream side of the first support member (20) in the conveying direction of the electrode piece (300), and is used for cutting off the first waste discharge section and the second waste discharge section.

2. The electrode conveying device according to claim 1, characterized in that: The cleaning film (40) comprises: substrate (41); A first adhesive layer (42) and a second adhesive layer (43), wherein the first adhesive layer (42) and the second adhesive layer (43) are respectively arranged on both sides of the substrate (41) in the thickness direction, the first adhesive layer (42) is suitable for bonding and connecting with the pole piece (300), and the second adhesive layer (43) is suitable for contacting with the first support member (20).

3. The electrode conveying device according to claim 2, characterized in that: The viscosity of the second adhesive layer (43) is lower than the viscosity of the first adhesive layer (42).

4. The electrode conveying device according to claim 1, characterized in that: A plurality of cleaning films (40) are covered on one side of the first waste discharge section and / or the second waste discharge section in the thickness direction, and the plurality of cleaning films (40) are arranged at intervals in the conveying direction and / or width direction of the pole piece (300).

5. The electrode conveying device according to claim 1, characterized in that: In the conveying direction of the electrode (300), the cleaning film (40) is spaced apart from the end of one side of the first waste discharge section away from the second waste discharge section, and the cleaning film (40) is spaced apart from the end of one side of the second waste discharge section away from the first waste discharge section.

6. The electrode conveying device according to any one of claims 1 to 5, characterized in that: The cleaning film (40) includes a first cleaning film (44), and the laminating mechanism (30) includes: Support plate (31); a first unwinding roller (32) and a first winding roller (33), wherein the first unwinding roller (32) and the first winding roller (33) are arranged on the support plate (31) and are located on one side of the thickness direction of the pole piece (300), and the first unwinding roller (32) and the first winding roller (33) are arranged at intervals in the conveying direction of the pole piece (300); A first release film (34), wherein the first release film (34) is provided with a first attachment section (341) and a first winding section, wherein the first winding section is provided at one end of the first release film (34) in the length direction, wherein the first cleaning film (44) is multiple and attached to the first attachment section (341) at intervals, wherein the first winding section is wound on the first winding roller (33), wherein the first attachment section (341) is wound on the first unwinding roller (32), wherein the first attachment section (341) contacts the first unwinding roller (32) at the start of winding, and wherein the first cleaning film (44) is provided on the side of the first attachment section (341) facing the pole piece (300) when the first cleaning film (44) is located between the first unwinding roller (32) and the first winding roller (33); A first pressing roller (35) is movably arranged on the support plate (31) and is located on a side of the first release film (34) away from the pole piece (300). The first pressing roller (35) is suitable for pushing the first attachment section (341) between the first unwinding roller (32) and the first winding roller (33) into contact with the pole piece (300).

7. The electrode conveying device according to claim 6, characterized in that: The coating mechanism (30) also includes: a first driving member (321), a second driving member (331) and a third driving member (351), wherein the first driving member (321), the second driving member (331) and the third driving member (351) are all arranged on the support plate (31), the first driving member (321) is connected to the first unwinding roller (32), the second driving member (331) is connected to the first winding roller (33), and the third driving member (351) is connected to the first pressing roller (35).

8. The electrode conveying device according to claim 7, characterized in that: The electrode conveying device (100) has a control unit, and the coating mechanism (30) further includes: a first sensor (36), the first sensor (36) is used to detect the position of the first cleaning film (44) on the first attachment section (341) stretched between the first unwinding roller (32) and the first winding roller (33), and the first sensor (36), the first driving member (321), the second driving member (331) and the third driving member (351) are all electrically connected to the control unit.

9. The electrode conveying device according to claim 6, characterized in that: The laminating mechanism (30) further includes: a first cooperating roller (50), the first cooperating roller (50) being arranged on a side of the pole piece (300) away from the first pressing roller (35), the pole piece (300) being supported on the first cooperating roller (50), and the first pressing roller (35) being suitable for pressing the first attachment section (341) onto the pole piece (300) on the first cooperating roller (50).

10. The electrode conveying device according to claim 6, characterized in that: The cleaning film (40) further includes a second cleaning film, and the coating mechanism (30) further includes: a second unwinding roller (61) and a second winding roller (62), wherein the second unwinding roller (61) and the second winding roller (62) are arranged on the support plate (31) and are located on the other side of the thickness direction of the pole piece (300), and the second unwinding roller (61) and the second winding roller (62) are arranged at intervals in the conveying direction of the pole piece (300); A second release film (63), wherein the second release film (63) is provided with a second attachment section (631) and a second winding section, wherein the second winding section is provided at one end of the second release film (63) in the longitudinal direction, a plurality of second cleaning films are attached to the second attachment section (631) at intervals, the second winding section is wound on the second winding roller (62), the second attachment section (631) is wound on the second unwinding roller (61), the second attachment section (631) contacts the second unwinding roller (61) at the start of winding, the second cleaning film is located between the second unwinding roller (61) and the second winding roller (62), and the second cleaning film is provided on the side of the second attachment section (631) facing the pole piece (300); A second pressing roller (64), the second pressing roller (64) is movably arranged on the support plate (31) and is located on the side of the second release film (63) away from the pole piece (300), and the second pressing roller (64) is suitable for pushing the second attachment section (631) between the second unwinding roller (61) and the second winding roller (62) to contact the pole piece (300).

11. The electrode conveying device according to claim 10, characterized in that: The coating mechanism (30) further includes: a second cooperating roller (65), the second cooperating roller (65) being arranged on a side of the pole piece (300) away from the second pressing roller (64), the pole piece (300) being supported on the second cooperating roller (65), and the second pressing roller (64) being suitable for pressing the second attachment section (631) onto the pole piece (300) on the second cooperating roller (65).

12. The electrode conveying device according to claim 10, characterized in that: The first pressing roller (35) and the second pressing roller (64) are adapted to move relative to each other so that the first attachment section (341), the pole piece (300) and the second attachment section (631) are sequentially pressed between the first pressing roller (35) and the second pressing roller (64).

13. The electrode conveying device according to claim 10, characterized in that: The coating mechanism (30) further includes: a fourth driving member (611), a fifth driving member (621) and a sixth driving member (641); the fourth driving member (611), the fifth driving member (621) and the sixth driving member (641) are all arranged on the support plate (31); the fourth driving member (611) is connected to the second unwinding roller (61); the fifth driving member (621) is connected to the second winding roller (62); and the sixth driving member (641) is connected to the second pressing roller (64).

14. The electrode conveying device according to claim 13, characterized in that: The electrode conveying device (100) has a control unit, and the coating mechanism (30) further includes: a second sensor (66), the second sensor (66) is used to detect the position of the second cleaning film on the second attachment section (631) stretched between the second unwinding roller (61) and the second winding roller (62), and the second sensor (66), the fourth driving member (611), the fifth driving member (621) and the sixth driving member (641) are all electrically connected to the control unit.

15. A production system, characterized in that: include: The electrode conveying device (100) according to any one of claims 1 to 14.

16. The production system according to claim 15, characterized in that There are two electrode sheet conveying devices (100), which respectively convey positive electrode sheets and negative electrode sheets. The production system (1000) further comprises a winding mechanism (200), which is used to stack and wind the positive electrode sheets and the negative electrode sheets. The winding mechanism (200) is arranged on the downstream side of the waste discharge mechanism of the two electrode sheet conveying devices (100).

17. A control method, characterized in that: Applied to the production system according to claim 15 or 16, the control method includes: S1. Confirm that there are first and second waste rows on the conveyor line; S2, the conveying line conveys the first row of waste segments and the second row of waste segments to the active area of ​​the film laminating mechanism (30), and the film laminating mechanism (30) covers both sides of the first row of waste segments and / or the second row of waste segments in the thickness direction with a cleaning film (40); S3, the conveyor line drives the first waste row segment and the second waste row segment to pass through the first support member (20), and the cleaning film (40) cleans the first support member (20); S4. The conveying line conveys the first waste discharge segment and the second waste discharge segment to the working area of ​​the waste discharge mechanism, and the waste discharge mechanism cuts off the first waste discharge segment and the second waste discharge segment.

18. The control method according to claim 17, characterized in that: Before the film covering mechanism (30) covers both sides of the first waste row section and / or the second waste row section in the thickness direction with the cleaning film (40), the method further comprises: S11, confirming that the length of the pole piece (300) passing over the first support member (20) since the last cleaning of the first support member (20) is greater than the set length L.

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