Scraping device and battery production system

Abstract

The utility model discloses a scraping device and a battery production system. The scraping device comprises a connecting main body; the first scraper component is located on one side of the connecting body in the first direction and connected with the connecting body, two scraping blades are arranged at the end, away from the connecting body, of the first scraper component, the two scraping blades extend in the second direction and are arranged at intervals in the third direction, and every two of the first direction, the second direction and the third direction are perpendicular to each other. And the scraping blade is used for scraping particles on the surface of the base material. In the using process, the scraping device can be installed on equipment for conveying a base material, the two scraping blades and a conveying roller of the equipment for conveying the base material are oppositely arranged, and when the base material passes through the conveying roller, the scraping blades can scrape particles on the surface of the base material, so that the surface of the base material is smoother, and the manufacturing quality of a pole piece is improved.

Description

Technical Field

[0001] The present application relates to a battery manufacturing device, and more particularly to a scraping device and a battery production system. Background Art

[0002] In the production of battery pole pieces, particles on the surface of the substrate used to make the current collector can easily have an adverse effect on the quality of the pole piece. For example, it is easy to cause tape breakage during the coating process and affect the coating thickness. Utility Model Content

[0003] In view of the above problems, the present application provides a current collector scraping device and a battery production system, which can improve the problem of particles or uneven surface on the current collector surface.

[0004] In a first aspect, the present application provides a scraping device, comprising:

[0005] Connect the subject;

[0006] The first scraper component is located on one side of the connecting body along the first direction and is connected to the connecting body. The first scraper component has two scraping edges at one end away from the connecting body. The two scraping edges extend along the second direction and are arranged at intervals along the third direction. The first direction, the second direction and the third direction intersect with each other in pairs. The scraping edges are used to scrape particles on the surface of the substrate.

[0007] During use, the scraping device can be installed on the equipment for conveying the substrate, so that the two scraping blades are arranged opposite to the conveying roller of the equipment for conveying the substrate. When the substrate passes through the conveying roller, the scraping blades can scrape off the particles on the surface of the substrate, making the surface of the substrate smoother, thereby improving the manufacturing quality of the electrode.

[0008] In some embodiments, the first scraper member comprises:

[0009] Two scrapers are respectively connected to the connection body and arranged at intervals along the third direction, and one end of the scraper away from the connection body has a scraping edge. Each scraper is provided with a scraping edge, which is easier to manufacture than a structure in which two scraping edges are formed on one scraper.

[0010] In some embodiments, the surfaces of the two scrapers facing each other form a first blade surface, and the end of the scraper facing away from the connecting body forms a second blade surface, the first blade surface and the second blade surface intersect and form a scraping edge at the intersection, the two scraping edges are both on the first plane, the second blade surfaces of the two scrapers coincide with the first plane, or the first plane only intersects with the scraping edge of each scraper.

[0011] During the scraping process, the second blade surfaces of the two scrapers intersect with the first plane, or the first plane only intersects with the scraping edge of each scraper, making it easier for the substrate to fit both scraping edges to scrape off impurities or uneven protrusions on the substrate surface.

[0012] In some embodiments, the second blade surface is a plane, and the two second blade surfaces are on the same plane. The second blade surface is a plane, which can be shaped by grinding, making it easier to make the two second blade surfaces on the same plane, thereby improving the parallelism of the two scraping edges, so that the two scraping edges can scrape the particles on the surface of the substrate to improve the flatness of the surface of the substrate.

[0013] In some embodiments, the connection body includes a connection member, and the connection member includes:

[0014] A first connecting member connected to a scraper, wherein two ends of the first connecting member along the second direction respectively form a part of the second plug-in portion;

[0015] The second connecting member is located at one side of the first connecting member along the third direction and connected to the first connecting member. The second connecting member is connected to another scraper. Both ends of the first connecting member along the second direction respectively form a part of the second plug-in portion.

[0016] Thus, the processing of the mounting surfaces of the two scrapers on the connecting body and the second plug-in portion is facilitated.

[0017] In some embodiments, the connecting member further comprises:

[0018] The gasket is arranged between the first connecting member and the second connecting member, and the gasket and the first scraper member are combined to form a groove, and the notch of the groove forms scraping edges along two opposite edges of the third direction.

[0019] The spacer can separate the two scrapers so that the scraping edges of the two scrapers can scrape the particles on the surface of the substrate from both sides. At the same time, the groove formed by the spacer and the first scraper component can also contain the scraped particles to reduce the probability of the scraped particles adhering to the surface of the substrate.

[0020] In some embodiments, the connection body includes:

[0021] A connecting member, at least one side of which is connected to a first scraper member along a first direction;

[0022] A positioning piece, two ends of the connecting member along the second direction are respectively connected with positioning pieces, a first plug-in portion is provided on the side of the positioning piece facing the connecting member, a second plug-in portion is provided on the side of the connecting member facing the positioning piece, and the first plug-in portion and the second plug-in portion are plug-matched along the second direction.

[0023] The first plug-in portion and the second plug-in portion are plugged and matched to achieve positioning of the connecting member and the positioning member when they are connected, so as to improve the accuracy of the position of the first scraper member relative to the positioning reference.

[0024] In some embodiments, the first plug-in portion is an plug-in protrusion, and the second plug-in portion is an plug-in hole, or the first plug-in portion is an plug-in hole, and the second plug-in portion is a plug-in protrusion.

[0025] During installation, the positioning pieces and connecting components can be quickly positioned, making installation easier.

[0026] In some embodiments, the side wall of the plug hole and the outer peripheral surface of the plug protrusion are respectively conical surfaces, and the diameter of the plug hole and the diameter of the plug protrusion both show a decreasing trend along the direction from the end of the plug hole to the bottom of the plug hole.

[0027] Through the matching of conical surfaces, on the one hand, accurate positioning of the connecting component and the positioning member can be achieved. On the other hand, the matching of conical surfaces is surface-to-surface matching. Compared with the positioning matching method using cylindrical surfaces and V-shaped surfaces (the contact position is line contact), the contact area between the plug-in hole and the plug-in protrusion can be increased to reduce the probability of deformation of the contact position of the plug-in hole and the plug-in protrusion under external force extrusion, thereby making it easier to keep the scraping blade in the predetermined position during scraping to improve the scraping effect.

[0028] In some embodiments, a portion of the outer peripheral surface of the plug-in protrusion forms a group of first positioning surfaces, and a portion of the side wall of the plug-in hole forms a group of second positioning surfaces. There are two sets of first positioning surfaces and two sets of second positioning surfaces respectively. The two sets of second positioning surfaces are arranged opposite to each other along the first direction. The two first positioning surfaces are arranged at an angle, and the two second positioning surfaces are arranged at an angle. One first positioning surface is arranged opposite to the second positioning surface, and the other first positioning surface is arranged opposite to the other second positioning surface. A first connecting hole is provided on one side of the connecting body along the first direction. The connecting body also includes a first locking piece, which is threadedly connected to the first connecting hole. The first locking piece is configured to abut against the plug-in protrusion so that the oppositely arranged first positioning surfaces and second positioning surfaces abut against each other. The first position and the second position are two different positions of the plug-in protrusion.

[0029] The first locking member squeezes the plug-in protrusion to move, so that the first positioning surface and the second positioning surface are abutted, which can eliminate the gap between the first positioning surface and the second positioning surface during installation, so as to make the positioning more accurate, thereby keeping the scraping edge parallel to the surface of the substrate.

[0030] In some embodiments, there are two first connecting holes, each of which is threadedly connected to a first locking member, one first locking member is configured to abut against a first position of the plug-in protrusion so that a first positioning surface and a second positioning surface that are relatively set abut against each other, and the other first locking member is configured to abut against the second position of the plug-in protrusion so as to press another first positioning surface and another second positioning surface that are relatively set.

[0031] Each first positioning surface and each second positioning surface are adjusted to abut against each other through a first locking member, which can improve the reliability of the fit between each first positioning surface and each second positioning surface to make the positioning more accurate, thereby keeping the scraping edge parallel to the surface of the substrate.

[0032] In some embodiments, the connecting member is connected to first scraper members on both sides along the first direction, the first positioning surface and the second positioning surface are respectively divided into two groups, and the connecting body is provided with first connecting holes on the other side along the first direction, and each first connecting hole passes through each second positioning surface one by one.

[0033] When the first scraper components are connected to the two ends of the connecting component along the first direction, a group of first positioning surfaces and a group of second positioning surfaces are positioned to one first scraper component, and the first scraper component works to scrape particles on the surface of the substrate. When the first scraper component needs to be replaced, the connecting component can be turned 180° and the other spare first scraper component can be used. The other first scraper component needs to be repositioned. At this time, the first locking piece can be adjusted to make the other group of first positioning surfaces and the other group of second positioning surfaces fit together to reposition the first scraper component to make the positioning more accurate, thereby keeping the scraping blade parallel to the surface of the substrate.

[0034] In some embodiments, the scraping device also includes a roller and a frame. The roller is rotatably connected to the frame via a rotating shaft. The roller is located on the side of the first scraper component that is away from the connecting body, and is spaced apart from the scraping blade along the first direction. The axial direction of the roller is the same as the second direction. The connecting body is arranged on the frame, and its relative position with the roller along the first direction is adjustable.

[0035] The passing roller is arranged at intervals with the two scraping blades. The passing roller can support the substrate so that the substrate passes through the passing roller. When the scraper scrapes particles from the substrate, the shaking of the substrate can be reduced, making it easier for the scraping blade to scrape particles on the surface of the substrate. At the same time, when the number of conveying rollers of the equipment for conveying the substrate is small or the scraping device does not have a suitable installation position with the conveying rollers, the scraping device with a frame and a passing roller can be installed as an integral module at a suitable position of the equipment for conveying the substrate to facilitate installation.

[0036] In some embodiments, along the third direction, the two scraping edges of the first scraper member are spaced equidistant from the axis of the roller. Thus, the two scraping edges can be symmetrically arranged on both sides of the axis of the roller, so that when the substrate passes through the scraping edges, the two scrapers can both contact the surface of the substrate or maintain an equidistant distance from the surface of the substrate, so that the two scraping edges can scrape particles on the surface of the substrate at the same time.

[0037] In some embodiments, the scraping device also includes two adjusting members, which are respectively threadedly connected to the connecting body and spaced apart along the second direction. The ends of the adjusting members abut against the rotating shaft, and the adjusting members are used to adjust the gap between the scraping blade and the outer peripheral surface of the roller.

[0038] The adjusting member can adjust the gap between the roller and the scraping blade, so that the scraping blade can scrape particles of the substrate at a suitable position, and can be applicable to substrates of different thicknesses to improve the application range of the scraping device.

[0039] In some embodiments, the adjusting member includes a micrometer head, so that the micrometer head can fine-tune the gap between the scraping blade and the roller, so as to more accurately adjust the gap between the roller and the scraping blade.

[0040] In a second aspect, the present application provides a battery production system, comprising the scraping device described in the first aspect.

[0041] Since the battery production system includes all the technical features of the scraping device of the first aspect, the effects are the same as those described above and will not be repeated here.

[0042] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0044] Figure 1 This is an axonometric diagram of a scraping device according to an embodiment of the present application;

[0045] Figure 2 This is a front view of a scraping device according to an embodiment of the present application;

[0046] Figure 3 for Figure 2 CC section view;

[0047] Figure 4 for Figure 3 A local enlarged view at location I;

[0048] Figure 5 A partial view of a cross section of two scrapers of a scraping device according to another embodiment of the present application, wherein the cross section is perpendicular to the second direction;

[0049] Figure 6 A partial view of a cross section where the first plane intersects the scraping edges of the two scrapers and simultaneously intersects other positions of one scraper;

[0050] Figure 7 A partial isometric view of a scraper in a scraping device according to an embodiment of the present application;

[0051] Figure 8 for Figure 2 BB cross-sectional view;

[0052] Fig. 9 This is an axonometric diagram of a positioning member in a scraping device according to an embodiment of the present application;

[0053] Fig.10 This is a partial isometric view of a connecting body in a scraping device according to an embodiment of the present application, in which the positioning member is omitted;

[0054] Fig.11 This is an axonometric view of a scraping device according to an embodiment of the present application.

[0055] The reference numerals in the specific implementation manner are as follows:

[0056] 100. Scraping device;

[0057] 10. Connecting body; 11. Connecting member; 111. First connecting member; 112. Second connecting member; 113. Gasket; 114. Second plug-in portion; 1141. Second positioning surface; 12. Positioning member; 122. First plug-in portion; 1221. First positioning surface; 13. First locking member; 20. First scraper member; 21. Scraper; 211. First blade surface; 212. Second blade surface; 213. Scraping blade; 2131. First plane; 214. Groove; 30. Roller; 40. Frame; 50. Adjusting member; 60. Guide rail assembly; 61. Guide rail; 62. Sliding block; 70. Set screw;

[0058] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0059] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0061] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0062] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0063] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0064] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0065] 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", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0066] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0067] In the production of battery pole pieces, the substrate for making current collectors is generally copper foil or aluminum foil. The active material layer is coated on the surface of the substrate, dried, and then made into pole pieces through winding or lamination processes. The presence of particles on the surface of the substrate will affect the quality of the pole piece. For example, it will cause tape breakage during the coating process, affecting the coating thickness and thus affecting the quality of the pole piece.

[0068] In view of this, the present application provides a scraping device. During use, the scraping device can be installed on a device for conveying a substrate, so that two scraping blades are arranged opposite to a conveying roller of the device for conveying a substrate. When the substrate passes through the conveying roller, the scraping blades can scrape off particles on the surface of the substrate, making the surface of the substrate smoother, thereby improving the manufacturing quality of the electrode.

[0069] A scraping device of the present application can be used for but not limited to scraping particles on the surface of copper foil or aluminum foil.

[0070] For the convenience of explanation, please refer to the following examples. Figure 1-Figure 11 , a scraping device 100 according to some embodiments of the present application is taken as an example for description.

[0071] Please refer to Figure 1-Figure 3The scraping device 100 includes a connection body 10 and a first scraper member 20. The first scraper member 20 is located at one side of the connection body 10 along the first direction X and is connected to the connection body 10. The first scraper member 20 has two scraping edges 213 at one end away from the connection body 10. The two scraping edges 213 extend along the second direction Y and are arranged at intervals along the third direction Z. The first direction X, the second direction Y and the third direction Z intersect each other. The scraping edges 213 are used to scrape particles on the surface of the substrate.

[0072] The connection between the first scraper member 20 and the connecting body 10 includes, but is not limited to, screw connection, welding, clamping, riveting or integral molding.

[0073] The plane where the two scraping edges 213 are located may be perpendicular to the first direction X, or may not be perpendicular to the first direction X.

[0074] The two scraping edges 213 may be two scraping edges 213 formed on one scraper 21 , or may be scraping edges 213 formed respectively on two scrapers 21 .

[0075] The scraping edge 213 extends along the second direction Y, which means that the edge length of the scraping edge 213 is the same as the second direction Y.

[0076] During use, the scraping device 100 can be installed on the equipment for conveying the substrate (the equipment for conveying the substrate can be a roller conveyor, or a conveying roller upstream of the extrusion die head of the coating equipment, etc.), so that the two scraping blades 213 are arranged opposite to the conveying roller of the equipment for conveying the substrate. When the substrate passes through the conveying roller, the scraping blade 213 can scrape off the particles on the surface of the substrate, making the surface of the substrate smoother, thereby improving the manufacturing quality of the electrode. For example, the conveying base equipment has a unwinding wheel and a winding wheel, and the unwinding wheel and the winding wheel are both rotatably mounted on the frame, and the axes of the two are parallel and spaced apart. A conveying roller is provided between the unwinding wheel and the winding wheel. After the substrate is unwound from the unwinding wheel, it bypasses the conveying roller and is wound on the winding wheel. The winding wheel is driven by a motor to realize the winding action. The scraping blade 213 can be spaced apart from the conveying roller and parallel to the axis of the conveying roller. The connecting body 10 can be installed on the frame.

[0077] In some embodiments, please refer to Figure 3 The first scraper member 20 includes two scrapers 21 , which are respectively connected to the connection body 10 and are spaced apart along the third direction Z. One end of the scraper 21 away from the connection body 10 forms a scraping edge 213 .

[0078] Optionally, the scraper 21 is a strip-shaped structure.

[0079] Optionally, the connecting body 10 forms a first mounting surface and a second mounting surface on one side along the first direction X, the first mounting surface and the second mounting surface are arranged at an angle, and the angular bisector plane between the first mounting surface and the second mounting surface is located between the two scraping edges 213 along the third direction Z, and the angular bisector plane is a plane that divides the first mounting surface and the second mounting surface into equal parts. One scraper 21 is installed on the first mounting surface, and the other scraper 21 is installed on the second mounting surface.

[0080] Exemplarily, the connection between the scraper 21 and the connection body 10 is a screw connection. Specifically, optionally, the scraper 21 is provided with a plurality of connection holes spaced apart along the second direction Y, and the connection body 10 is provided with a plurality of threaded holes spaced apart along the second direction Y, and the screws pass through the connection holes and are threadedly connected with the threaded holes.

[0081] Each scraper 21 is provided with a scraping edge 213 , which is easier to manufacture than a structure in which two scraping edges 213 are formed on one scraper 21 .

[0082] In some embodiments, please refer to Figure 3-Figure 7 The surfaces of the two scrapers 21 facing each other form a first blade surface 211, and the end of the scraper 21 facing away from the connection body 10 forms a second blade surface 212. The first blade surface 211 and the second blade surface 212 intersect and form a scraping edge 213 at the intersection. Both scraping edges 213 are on the first plane 2131. The second blade surfaces 212 of the two scrapers 21 coincide with the first plane 2131. In another embodiment, the first plane 2131 only intersects with the scraping edge 213 of each scraper 21.

[0083] Figure 4 and Figure 5 The structure in which the second blade surfaces 212 of the two scrapers 21 coincide with the planes where the two scraping edges 213 are located is exemplarily shown. Figure 4 The angle between the first blade surface 211 and the second blade surface 212 is substantially 90°. Figure 5 The included angle between the first blade surface 211 and the second blade surface 212 is an acute angle. Figure 6 The structure in which the first plane 2131 not only intersects with the two scraping edges 213 but also intersects with other parts of a scraper 21 is exemplarily shown. The second blade surface 212 of the scraper 21 protrudes along the first direction X, and the angle between the second blade surface 212 and the first blade surface 211 is an obtuse angle. When measuring the distance between the scraping edge 213 of the scraper 21 and the conveying roller, it is difficult to measure due to the obstruction of the second blade surface 212, and when the diameter of the conveying roller is large, the second blade surface 212 is easy to interfere with the conveying roller.

[0084] Optionally, the second blade surface 212 may be, but is not limited to, a plane or a concave curved surface. For example, the curved surface may be a concave circular curved surface or an elliptical curved surface.

[0085] The first blade faces 211 may be parallel or non-parallel.

[0086] The plane where the two scraping edges 213 are located intersects only with the scraping edge 213 of each scraper 21 , which means that except for the scraping edge 213 itself located in the plane where the two scraping edges 213 are located, the rest of the scraper 21 does not intersect with the plane.

[0087] When the plane where the two scraping edges 213 are located not only intersects with the scraping edge 213 of each scraper 21, but also intersects with other parts of each scraper 21, for example, the angle between the second blade surface 212 and the first blade surface 211 is an obtuse angle, when the scraper 21 is in contact with the substrate, the second blade surface 212 is first in contact with the substrate, so that at least one of the two scraping edges 213 is not easy to contact with the substrate, and it is not easy to scrape off particles on the surface of the substrate. Therefore, during the scraping process, the second blade surfaces 212 of the two scrapers 21 coincide with the plane where the two scraping edges 213 are located, or the plane where the two scraping edges 213 are located only intersects with the scraping edge 213 of each scraper 21, making it easier for the substrate to contact with both scraping edges 213 to scrape off impurities or uneven protrusions on the surface of the substrate.

[0088] In some embodiments, please refer to Figure 4 The second blade surface 212 is a plane, and the two second blade surfaces 212 are on the same plane. The second blade surface 212 is a plane, and can be shaped by grinding, so that it is easier to make the two second blade surfaces 212 on the same plane, thereby improving the parallelism of the two scraping edges 213, so that the two scraping edges 213 can scrape the particles on the surface of the substrate to improve the flatness of the surface of the substrate.

[0089] In some embodiments, the connection body 10 includes a connection member 11 and a positioning member 12. Among them, the connection member 11 is connected to the first scraper member 20 at at least one end along the first direction X. The connection member 11 is connected to the positioning member 12 at both ends along the second direction Y. The positioning member 12 is provided with a first plug-in portion 122 on one side facing the connection member 11, and the connection member 11 is provided with a second plug-in portion 114 on one side facing the positioning member 12. The first plug-in portion 122 and the second plug-in portion 114 are plugged and matched along the second direction Y.

[0090] The connection between the first scraper member 20 and the connecting member 11 may be any of the connection modes between the scraper 21 and the connecting body 10 listed above, which will not be described in detail here.

[0091] The connection between the positioning member 12 and the connecting member 11 includes but is not limited to screw connection or stud connection.

[0092] The positioning member 12 is used to be installed on a bracket, and the bracket may be on a substrate conveying device.

[0093] The first plug-in portion 122 is plugged into and matched with the second plug-in portion 114 , so as to realize the positioning of the connecting member 11 and the positioning member 12 when they are connected, so as to improve the accuracy of the position of the first scraper member 20 relative to the positioning reference.

[0094] In some embodiments, please refer to Figure 3 The two ends of the connecting member 11 along the first direction X are respectively connected to the first scraper members 20 .

[0095] There are two first scraper components 20. When the scraping edge 213 of one first scraper component 20 is severely worn and needs to be replaced, the connecting component 11 can be turned 180° and the other spare first scraper component 20 can be used, which can shorten the replacement time of the first scraper component 20 and improve production efficiency.

[0096] In some embodiments, please refer to Figure 7-Figure 9 , the first plug-in portion 122 is a plug-in protrusion, and the second plug-in portion 114 is a plug-in hole. Alternatively, the first plug-in portion 122 is a plug-in hole, and the second plug-in portion 114 is a plug-in protrusion.

[0097] The plug-in protrusion may be, but is not limited to, a conical protrusion, a polygonal protrusion, an elliptical protrusion, etc. The inner wall contour of the plug-in hole may be the same as the outer peripheral contour of the plug-in protrusion.

[0098] During installation, the positioning member 12 and the connecting member 11 can be quickly positioned, making installation convenient.

[0099] In some embodiments, the side wall of the plug hole and the outer peripheral surface of the plug protrusion are respectively conical surfaces, and the diameter of the plug hole and the diameter of the plug protrusion both show a decreasing trend along the direction from the end of the plug hole to the bottom of the plug hole.

[0100] Through the matching of conical surfaces, on the one hand, the accurate positioning of the connecting member 11 and the positioning member 12 can be achieved. On the other hand, the matching of the conical surfaces is surface-to-surface matching. Compared with the positioning matching method using cylindrical surfaces and V-shaped surfaces (the contact position is line contact), the contact area between the plug-in hole and the plug-in protrusion can be increased to reduce the probability of deformation of the contact position of the plug-in hole and the plug-in protrusion under external force extrusion, thereby making it easier to keep the scraping blade 213 in the predetermined position during scraping to improve the scraping effect.

[0101] In some embodiments, please refer to Figure 8-Figure 10A group of first positioning surfaces 1221 are formed on part of the outer peripheral surface of the plug-in protrusion, and a group of second positioning surfaces 1141 are formed on part of the side wall of the plug-in hole. There are two of each of the group of first positioning surfaces 1221 and the group of second positioning surfaces 1141. The two groups of second positioning surfaces 1141 are arranged opposite to each other along the first direction X. The two first positioning surfaces 1221 are arranged at an angle, and the two second positioning surfaces 1141 are arranged at an angle. One first positioning surface 1221 is arranged opposite to the second positioning surface 1141, and the other first positioning surface 1221 is arranged opposite to the other second positioning surface 1141. A first connecting hole is provided on one side of the connecting body 10 along the first direction X. The connecting body 10 also includes a first locking member 13, which is threadedly connected to the first connecting hole. The first locking member 13 is configured to abut against the plug-in protrusion so that the oppositely arranged first positioning surfaces 1221 and the second positioning surfaces 1141 abut against each other.

[0102] Optionally, the inner wall contour of the plug-in hole may be in the shape of a hexagonal prism, and the outer peripheral surface contour of the plug-in protrusion may be in the shape of a hexagonal prism.

[0103] The first positioning surface 1221 and the second positioning surface 1141 are arranged opposite to each other, which means that the two face each other, and at least a portion of the projection of the first positioning surface 1221 is located on the second positioning surface 1141 .

[0104] Optionally, the number of the first connection holes may be one or more. Exemplarily, the number of the first connection hole is one, the axial direction of the first connection hole is the same as the first direction X, the first locking member 13 is threadedly connected to the first connection hole, and the first locking member 13 is rotated to move the plug-in protrusion along the first direction X so that the first positioning surface 1221 and the second positioning surface 1141 abut against each other.

[0105] The first locking member 13 squeezes the insertion protrusion to move, so that the first positioning surface 1221 and the second positioning surface 1141 are close to each other, which can eliminate the gap between the first positioning surface 1221 and the second positioning surface 1141 during the installation process to make the positioning more accurate, so that the scraping edge 213 remains parallel to the surface of the substrate.

[0106] In some embodiments, please refer to Figure 8 There are two first connecting holes, each of which is threadedly connected with a first locking piece 13. One first locking piece 13 is configured to abut against the first position of the plug-in protrusion to press a first positioning surface 1221 and a second positioning surface 1141 that are relatively set. The other first locking piece 13 is configured to abut against the second position of the plug-in protrusion to make another first positioning surface 1221 and another second positioning surface 1141 that are relatively set abut against each other. The first position and the second position are two different positions of the plug-in protrusion.

[0107] Each first positioning surface 1221 and each second positioning surface 1141 are adjusted to abut against each other through a first locking member 13, which can improve the reliability of the fit between each first positioning surface 1221 and each second positioning surface 1141 to make the positioning more accurate, thereby keeping the scraping edge 213 parallel to the surface of the substrate.

[0108] In some embodiments, please refer to Figure 8-Figure 10 The connecting member 11 is connected to the first scraper member 20 on both sides along the first direction X, the first positioning surface 1221 and the second positioning surface 1141 are two groups respectively, and the other side of the connecting body 10 along the first direction X is provided with a first connecting hole, and each first connecting hole passes through each second positioning surface 1141 one by one.

[0109] Optionally, the first angle bisector plane of two first positioning surfaces 1221 in a group of first positioning surfaces 1221 is perpendicular to the third direction Z, the second angle bisector plane of two second positioning surfaces 1141 in a group of second positioning surfaces 1141 is perpendicular to the third direction Z, and the first angle bisector plane and the second angle bisector plane coincide with each other. The first angle bisector plane refers to a plane that divides the angle between the two first positioning surfaces 1221 equally among two intersecting first positioning surfaces 1221. The second angle bisector plane refers to a plane that divides the angle between the two second positioning surfaces 1141 equally among two intersecting second positioning surfaces 1141.

[0110] When the connecting member 11 is connected to the first scraper member 20 at both ends along the first direction X, a group of first positioning surfaces 1221 and a group of second positioning surfaces 1141 position a first scraper member 20, and the first scraper member 20 works to scrape particles on the surface of the substrate. When the first scraper member 20 needs to be replaced, the connecting member 11 can be turned 180° and another spare first scraper member 20 can be used. The other first scraper member 20 needs to be repositioned. At this time, the first locking member 13 can be adjusted to make another group of first positioning surfaces 1221 and another group of second positioning surfaces 1141 abut against each other to reposition the first scraper member 20 so that the positioning is more accurate, thereby keeping the scraping edge 213 parallel to the surface of the substrate.

[0111] In some embodiments, please refer to Figure 8-Figure 10 The connecting body 10 includes a connecting member 11, and the connecting member 11 includes a first connecting member 111 and a second connecting member 112. The first connecting member 111 is connected to a scraper 21, and the two ends of the first connecting member 111 along the second direction Y respectively form a part of the second plug-in portion 114. The second connecting member 112 is located on one side of the first connecting member 111 along the third direction Z and is connected to the first connecting member 111. The second connecting member 112 is connected to another scraper 21, and the two ends of the first connecting member 111 along the second direction Y respectively form a part of the second plug-in portion 114.

[0112] Optionally, the connection between one scraper 21 and the first connecting member 111 and the connection between the other scraper 21 and the second connecting member 112 include but are not limited to one or both of screw connection and stud connection.

[0113] Therefore, the processing of the mounting surfaces of the two scrapers 21 on the connecting body 10 and the second plug-in portion 114 is facilitated.

[0114] In some embodiments, please refer to Figure 3 The connecting member 11 also includes a gasket 113, which is arranged between the first connecting member 111 and the second connecting member, and the gasket 113 and the first scraper member 20 together form a groove 214, and the groove 214 has two opposite edges along the third direction Z to form a scraping edge 213.

[0115] The gasket 113 can separate the two scrapers 21 so that the scraping edges 213 of the two scrapers 21 can scrape the particles on the surface of the substrate from both sides. At the same time, the groove 214 formed by the gasket 113 and the first scraper component 20 can also accommodate the scraped particles therein to reduce the probability of the scraped particles adhering to the surface of the substrate.

[0116] In some embodiments, please refer to Fig.11 The scraping device 100 also includes a roller 30 and a frame 40. The roller 30 is rotatably connected to the frame 40 via a rotating shaft. The roller 30 is located on the side of the first scraper member 20 away from the connecting body 10, and is spaced apart from the scraping blade 213 along the first direction X. The axial direction of the roller 30 is the same as the second direction Y. The connecting body 10 is arranged on the frame 40, and the relative position of the roller 30 along the first direction X is adjustable.

[0117] When the number of the scraping edges 213 of the first scraper member 20 is two, the distances between the two scraping edges 213 and the axis of the roller 30 along the third direction Z are equal.

[0118] Exemplarily, the connecting body 10 is slidably connected to the frame 40, and the connecting body 10 is driven by a driving mechanism, and the driving mechanism is used to drive the connecting body 10 to move along the first direction X, so as to achieve an adjustable relative position of the connecting body 10 over the roller 30 along the first direction X. The driving mechanism can be, but is not limited to, a cylinder or an electric push rod.

[0119] The roller 30 is spaced apart from the two scraping blades 213. The roller 30 can support the substrate so that the substrate passes through the roller 30. When the scraper 21 scrapes particles from the substrate, the shaking of the substrate can be reduced, making it easier for the scraping blade 213 to scrape particles on the surface of the substrate. At the same time, when the number of conveying rollers of the equipment for conveying the substrate is small or the scraping device 100 does not have a suitable installation position with the conveying rollers, the scraping device 100 having the frame 40 and the roller 30 can be installed as an integral module at a suitable position of the equipment for conveying the substrate for easy installation.

[0120] In some embodiments, along the third direction Z, the distances between the two scraping edges 213 of the first scraper member 20 and the axis of the roller 30 are equal. Thus, the two scraping edges 213 can be symmetrically arranged on both sides of the axis of the roller 30, so that when the substrate passes through the scraping edges 213, the two scrapers 21 can contact the surface of the substrate or maintain an equidistant distance from the surface of the substrate, so that the two scraping edges 213 can scrape particles on the surface of the substrate at the same time.

[0121] In some embodiments, please refer to Fig.11 The scraping device 100 also includes two adjusting members 50, which are respectively threadedly connected to the connecting body 10 and are spaced apart along the second direction Y. The ends of the adjusting members 50 abut against the rotating shaft, and the adjusting members 50 are used to adjust the gap between the scraping blade 213 and the outer peripheral surface of the roller 30.

[0122] Optionally, the adjusting member 50 may be, but is not limited to, a screw or a screw. Exemplarily, a long slot hole (not shown in the figure) is provided on the frame 40, the length direction of the long slot hole is the same as the first direction X, the screw passes through the long slot hole and is threadedly connected to the end of the connecting body 10 along the second direction Y, and after the clearance between the scraping blade 213 and the outer peripheral surface of the roller 30 is adjusted by the adjusting member 50, it can be locked by the screw. In another example, specifically optionally, a guide rail assembly 60 is connected to the frame 40, and the guide rail assembly 60 includes a guide rail 61 and a slider 62, the length direction of the guide rail 61 is the same as the first direction X, the guide rail 61 is slidably connected to the slider 62, and the connecting body 10 is connected to the slider 62. A locking threaded hole is provided on the slider 62, and a set screw 70 is threadedly connected to the locking threaded hole, and the end of the set screw 70 can abut against the guide rail 61 to lock the guide rail 61 and the slider 62, so that the scraping blade 213 and the roller 30 are relatively fixed.

[0123] The adjusting member 50 can adjust the gap between the roller 30 and the scraping blade 213 , so that the scraping blade 213 can scrape particles of the substrate at a suitable position, and can be applicable to substrates of different thicknesses to improve the application range of the scraping device 100 .

[0124] In some embodiments, the adjusting member 50 includes a micrometer head, so that the micrometer head can fine-tune the gap between the scraping blade 213 and the roller 30, so as to more accurately adjust the gap between the roller 30 and the scraping blade 213.

[0125] For the convenience of description, the following embodiments are described by taking a battery production system according to some embodiments of the present application as an example.

[0126] The battery production system includes the scraping device 100 of the above-described embodiment.

[0127] Since the battery production system includes all the technical features of the scraping device 100 of the above embodiment, the effects are the same as those described above and will not be described in detail here.

[0128] In an optional embodiment of the scraping device 100, please refer to Figure 1-Figure 11The scraping device 100 includes a connecting body 10, a roller 30, a frame 40 and a first scraper member 20. The scraping device 100 includes a connecting body 10 and a first scraper member 20. The first scraper member 20 is located on one side of the connecting body 10 along the first direction X and is connected to the connecting body 10. A scraping blade 213 is formed at one end of the first scraper member 20 away from the connecting body 10. There are two scraping blades 213. The two scraping blades 213 are arranged at intervals along the third direction Z and are parallel to each other. The scraping blades 213 extend along the second direction Y. The first direction X, the second direction Y and the third direction Z are perpendicular to each other. The scraping blades 213 are used to scrape particles on the surface of the substrate. The first scraper member 20 includes two scrapers 21. The two scrapers 21 are respectively connected to the connecting body 10 and are arranged at intervals along the third direction Z. A scraping blade 213 is formed at one end of the scraper 21 away from the connecting body 10. The surfaces of the two scrapers 21 facing each other form a first blade surface 211, and the end of the scraper 21 facing away from the connection body 10 forms a second blade surface 212. The first blade surface 211 and the second blade surface 212 intersect and form a scraping edge 213 at the intersection. The second blade surfaces 212 of the two scrapers 21 coincide with the plane where the two scraping edges 213 are located. In another embodiment, the plane where the two scraping edges 213 are located only intersects with the scraping edge 213 of each scraper 21. The second blade surface 212 is a plane, and the two second blade surfaces 212 are on the same plane. The connection body 10 includes a connection member 11 and a positioning member 12. Among them, the first scraper member 20 is connected to at least one end of the connection member 11 along the first direction X. The two ends of the connecting member 11 along the second direction Y are respectively connected to the positioning member 12, the positioning member 12 is provided with a first plug-in portion 122 on one side facing the connecting member 11, and the connecting member 11 is provided with a second plug-in portion 114 on one side facing the positioning member 12, and the first plug-in portion 122 and the second plug-in portion 114 are plug-fitted along the second direction Y. The two ends of the connecting member 11 along the first direction X are respectively connected to the first scraper member 20. The first plug-in portion 122 is a plug-in protrusion, and the second plug-in portion 114 is a plug-in hole. A group of first positioning surfaces 1221 are formed on a portion of the outer circumferential surface of the plug-in protrusion, and a group of second positioning surfaces 1141 are formed on a portion of the side wall of the plug-in hole. There are two groups of first positioning surfaces 1221 and two groups of second positioning surfaces 1141, respectively. The two groups of second positioning surfaces 1141 are arranged opposite to each other along the first direction X, the two first positioning surfaces 1221 are arranged at an angle, the two second positioning surfaces 1141 are arranged at an angle, one first positioning surface 1221 is arranged opposite to the second positioning surface 1141, and the other first positioning surface 1221 is arranged opposite to the other second positioning surface 1141. A first connecting hole is provided on one side of the connecting body 10 along the first direction X, and the connecting body 10 also includes a first locking member 13, which is threadedly connected to the first connecting hole, and the first locking member 13 is configured to abut against the plug-in protrusion to press the oppositely arranged first positioning surfaces 1221 and second positioning surfaces 1141.There are two first connection holes, each of which is threadedly connected with a first locking member 13. One first locking member 13 is configured to abut against the first position of the plug-in protrusion so that a first positioning surface 1221 and a second positioning surface 1141 arranged oppositely abut against each other, and another first locking member 13 is configured to abut against the second position of the plug-in protrusion so that another first positioning surface 1221 and another second positioning surface 1141 arranged oppositely abut against each other, and the first position and the second position are two different positions of the plug-in protrusion. The connecting member 11 is connected with the first scraper member 20 on both sides along the first direction X, respectively, and the first positioning surface 1221 and the second positioning surface 1141 are two groups respectively, and the connecting body 10 is provided with a first connection hole on the other side along the first direction X, and each first connection hole passes through each second positioning surface 1141 one by one. The connecting body 10 includes a connecting member 11, and the connecting member 11 includes a first connecting member 111, a second connecting member 112 and a gasket 113. The first connecting member 111 is connected to a scraper 21, and the two ends of the first connecting member 111 along the second direction Y respectively form a part of the second plug-in portion 114. The second connecting member 112 is located on one side of the first connecting member 111 along the third direction Z and is connected to the first connecting member 111. The second connecting member 112 is connected to another scraper 21, and the two ends of the first connecting member 111 along the second direction Y respectively form a part of the second plug-in portion 114. The gasket 113 is arranged between the first connecting member 111 and the second connecting member, and the gasket 113 and the first scraper member 20 are enclosed together to form a groove 214, and the notch of the groove 214 forms a scraping edge 213 along two opposite edges of the third direction Z. The roller 30 is rotatably connected to the frame 40 via a rotating shaft. The roller 30 is located on the side of the first scraper member 20 away from the connection body 10 and is spaced apart from the scraping blade 213 along the first direction X. The axial direction of the roller 30 is the same as the second direction Y. The connection body 10 is arranged on the frame 40, and the relative position of the roller 30 along the first direction X is adjustable. Along the third direction Z, the distances between the two scraping blades 213 of the first scraper member 20 and the axis of the roller 30 are equal. The scraping device 100 also includes two adjusting members 50, which are respectively threadedly connected to the connection body 10 and spaced apart along the second direction Y. The ends of the adjusting members 50 abut against the rotating shaft, and the adjusting members 50 are used to adjust the gap between the scraping blade 213 and the outer peripheral surface of the roller 30. The adjusting member 50 is a differential head.

[0129] Through the cooperation of the two scraping edges 213 of the first scraper component 20 and the roller 30, the particles on the surface of the substrate passing through the roller 30 are scraped off by the scraping edges 213 to make the surface of the substrate flat, so as to improve the coating effect of the subsequent process of the electrode production. At the same time, the connecting body 10 can be rotated 180°, and the worn first scraper component 20 can be replaced. Compared with only one first scraper component 20, the time of the first scraper component 20 can be saved to improve the production efficiency. When the first scraper component 20 is changed, the first locking member 13 can be adjusted to position the first scraper component 20 to maintain the relative position of the first scraper component 20 and the reference plane, so that the scraping edge 213 can be kept parallel to the axis of the roller 30, and can be symmetrically arranged on both sides of the axis of the roller 30 to improve the scraping effect.

[0130] 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 replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate 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 scraping device, characterized in that: include: Connect the subject; The first scraper component is located on one side of the connecting body along the first direction and is connected to the connecting body. The first scraper component has two scraping edges at one end away from the connecting body. The two scraping edges extend along the second direction and are arranged at intervals along the third direction. The first direction, the second direction and the third direction intersect with each other in pairs. The scraping edges are used to scrape particles on the surface of the substrate.

2. The scraping device according to claim 1, characterized in that: The first scraper member comprises: Two scrapers are respectively connected to the connection body and arranged at intervals along the third direction. One end of the scraper away from the connection body is provided with the scraping edge.

3. The scraping device according to claim 2, characterized in that: The surfaces of the two scrapers facing each other form a first blade surface, and the end of the scraper facing away from the connecting body forms a second blade surface, the first blade surface and the second blade surface intersect and form the scraping edge at the intersection, and the two scraping edges are both on the first plane. The second blade surfaces of the two scrapers coincide with the first plane, or the first plane only intersects with the scraping edge of each scraper.

4. The scraping device according to claim 3, characterized in that: The second blade surface is a plane, and the two second blade surfaces are on the same plane.

5. The scraping device according to claim 2, characterized in that: The connecting body comprises a connecting member, and the connecting member comprises: A first connecting member connected to one of the scrapers, wherein two ends of the first connecting member along the second direction respectively form a part of the second plug-in portion; The second connecting member is located at one side of the first connecting member along the third direction and connected to the first connecting member. The second connecting member is connected to another scraper. Both ends of the first connecting member along the second direction respectively form a part of the second plug-in portion.

6. The scraping device according to claim 5, characterized in that: The connecting member further comprises: A gasket is arranged between the first connecting member and the second connecting member, and the gasket and the two scrapers are together surrounded to form a groove, and the notch of the groove forms the scraping edge along two opposite edges of the third direction.

7. The scraping device according to claim 1, characterized in that: The connection body comprises: a connecting member, at least one side of which along the first direction is connected to the first scraper member; A positioning piece, wherein the two ends of the connecting member along the second direction are respectively connected to the positioning piece, a first plug-in portion is provided on a side of the positioning piece facing the connecting member, and a second plug-in portion is provided on a side of the connecting member facing the positioning piece, and the first plug-in portion and the second plug-in portion are plug-fitted along the second direction.

8. The scraping device according to claim 7, characterized in that: The first plug-in portion is a plug-in protrusion, and the second plug-in portion is a plug-in hole; or, the first plug-in portion is a plug-in hole, and the second plug-in portion is a plug-in protrusion.

9. The scraping device according to claim 8, characterized in that: The side wall of the plug hole and the outer peripheral surface of the plug protrusion are respectively conical surfaces, and along the direction from the end of the plug hole to the bottom of the plug hole, the diameter of the plug hole and the diameter of the plug protrusion both show a decreasing trend.

10. The scraping device according to claim 8, characterized in that: Part of the outer peripheral surface of the plug-in protrusion forms a group of first positioning surfaces, and part of the side wall of the plug-in hole forms a group of second positioning surfaces. There are two of each of the first positioning surfaces and the second positioning surfaces. The two first positioning surfaces are set at an angle, and the two second positioning surfaces are set at an angle. One first positioning surface is set opposite to one second positioning surface, and the other first positioning surface is set opposite to the other second positioning surface. A first connecting hole is provided on one side of the connecting body along the first direction. The connecting body also includes a first locking piece, which is threadedly connected to the first connecting hole, and the first locking piece is configured to abut against the plug-in protrusion so that the first positioning surface and the second positioning surface set opposite to each other abut against each other.

11. The scraping device according to claim 10, characterized in that: There are two first connecting holes, and each of the first connecting holes is threadedly connected with the first locking piece. One first locking piece is configured to abut against the first position of the plug-in protrusion so that a first positioning surface and a second positioning surface that are relatively set are abutted. Another first locking piece is configured to abut against the second position of the plug-in protrusion so that another first positioning surface and another second positioning surface that are relatively set are abutted. The first position and the second position are two different positions of the plug-in protrusion.

12. The scraping device according to claim 10, characterized in that: The first positioning surfaces and the second positioning surfaces are respectively provided in two groups, and the two groups of the second positioning surfaces are arranged opposite to each other along the first direction. The first connecting holes are provided on the other side of the connecting body along the first direction, and each of the first connecting holes passes through each of the second positioning surfaces in a one-to-one correspondence.

13. The scraping device according to any one of claims 1 to 12, characterized in that: The scraping device also includes a roller and a frame, the roller is rotatably connected to the frame via a rotating shaft, the roller is located on the side of the first scraper component away from the connecting body, and is spaced apart from the scraping blade along the first direction, the axial direction of the roller is the same as the second direction, the connecting body is arranged on the frame, and the relative position of the roller along the first direction is adjustable.

14. The scraping device according to claim 13, characterized in that Along the third direction, the distances between the two scraping edges of the first scraper member and the axis of the roller are equal.

15. The scraping device according to claim 13, characterized in that: The scraping device also includes two adjusting members, which are respectively threadedly connected to the connecting body and are spaced apart along the second direction. The ends of the adjusting members abut against the rotating shaft, and the adjusting members are used to adjust the gap between the scraping blade and the outer peripheral surface of the roller.

16. The scraping device according to claim 15, characterized in that The adjusting member comprises a micrometer head.

17. A battery production system, characterized in that: Comprising a scraping device as described in any one of claims 1-16.

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