Stirring device and coating machine

Abstract

The invention provides a stirring device and a coating machine. The stirring device is used for stirring slurry of a coating machine, and comprises a stirring box used for bearing the slurry and provided with a containing cavity; the stirring assembly is arranged on the stirring box, the stirring assembly comprises a stirring paddle, the stirring paddle is located in the containing cavity, and the stirring paddle and a coating roller of the coating machine are arranged in a spaced mode; the driving mechanism is in transmission connection with the stirring assembly to drive the stirring paddle to rotate. The stirring device is used for improving the stirring effect on the slurry of the coating machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the coating technology field, and in particular to a stirring device and a coating machine. BACKGROUND

[0002] The coating machine is mainly used for the surface coating process production of films, paper and the like, and is specifically used for coating a substrate with a layer of slurry such as glue, paint or ink having a specific function to form a coating layer, and the coating layer is wound and placed after being dried. For example, in the process of manufacturing lithium batteries, electrode slurry formed by mixing and stirring active materials, adhesives and other components needs to be coated on the surface of electrode materials such as aluminum foil or copper foil sheets, or ceramic slurry needs to be coated on the surface of a separator.

[0003] In order to realize the coating of the substrate, the slurry needs to be kept in a liquid state, and therefore stirring needs to be performed. However, the existing stirring device is prone to interference with other structures, and the stirring effect is poor. SUMMARY

[0004] Embodiments of the present application provide a stirring device and a coating machine to improve the stirring effect of the slurry of the coating machine.

[0005] In a first aspect, embodiments of the present application provide a stirring device for stirring the slurry of a coating machine, and the stirring device comprises:

[0006] A stirring box for carrying the slurry, wherein the stirring box has a receiving cavity;

[0007] A stirring assembly arranged on the stirring box, wherein the stirring assembly comprises a stirring paddle, and the stirring paddle is located in the receiving cavity and is configured to be arranged at an interval from a coating roller of the coating machine;

[0008] A driving mechanism in transmission connection with the stirring assembly to drive the stirring paddle to rotate.

[0009] In some possible implementation manners, a plurality of stirring assemblies are arranged at intervals and sequentially arranged along the circumference of the stirring box.

[0010] In some possible implementation manners, the plurality of stirring assemblies are arranged around the stirring box along the circumference.

[0011] In some possible implementation manners, the minimum distance between the stirring assembly and the side wall of the receiving cavity is in the range of [50mm, 80mm].

[0012] In some possible implementation manners, the stirring paddle comprises a stirring rod and a paddle blade, and the paddle blade is arranged on the stirring rod.

[0013] The stirring assembly further comprises:

[0014] a driven wheel sleeved on the stirring rod, the driven wheel and the paddle being spaced apart;

[0015] a first limiting member provided on the stirring rod and located at a side of the driven wheel close to the paddle, the first limiting member being used to limit the position of the driven wheel on the stirring rod.

[0016] In some possible embodiments, the first limiting member comprises:

[0017] a first ring body sleeved on the stirring rod and spaced apart from the stirring paddle, the first ring body being provided with a first threaded hole penetrating through the first ring body along the thickness direction of the first ring body;

[0018] a first locking bolt penetrating through the first threaded hole and abutting against the stirring rod, so that the first ring body is fixed relative to the stirring paddle.

[0019] In some possible embodiments, the paddle comprises at least two paddles, the paddles and the first limiting member being spaced apart.

[0020] In some possible embodiments, the stirring rod and the at least two paddles are in an integrated structure.

[0021] And / or, at least one of the stirring rod and the paddle comprises a body and a coating layer provided on the body.

[0022] In some possible embodiments, the material of the body comprises at least one of stainless steel and alloy steel; and / or, the material of the coating layer comprises at least one of polytetrafluoroethylene, polyethylene, polyether ether ketone and ceramic.

[0023] In some possible embodiments, the stirring assembly further comprises:

[0024] a bearing sleeved on the stirring rod and located between the paddle and the first limiting member, the bearing being fixedly connected with the stirring rod.

[0025] In some possible embodiments, the stirring rod comprises:

[0026] a first rod segment, the bearing, the driven wheel and the first limiting member being provided on the first rod segment;

[0027] a second rod segment, the paddle being provided on the second rod segment, the second rod segment being connected to an end of the first rod segment close to the paddle and forming a stepped surface with the first rod segment, the stepped surface facing the bearing to limit the bearing.

[0028] In some possible embodiments, the stirring box comprises a bottom plate and a first side plate, one end of the first side plate is connected to the bottom plate and encloses the accommodating cavity;

[0029] The stirring device further comprises:

[0030] A mounting plate is connected to the end of the first side plate away from the bottom plate, the mounting plate (30) is provided with a first through hole, at least part of the stirring assembly (20) is arranged in the first through hole and is fixedly connected to the mounting plate.

[0031] In some possible embodiments, the mounting plate encloses an opening, the opening is in communication with the accommodating cavity to allow the coating roller to enter the accommodating cavity to stick the slurry.

[0032] In some possible embodiments, the first through hole comprises a first hole section and a second hole section connected to each other, the first hole section is away from the accommodating cavity relative to the second hole section, and the diameter of the first hole section is greater than the diameter of the second hole section.

[0033] The bearing is arranged in the first hole section, and the diameter of the bearing is greater than the diameter of the second hole section, and the stirring rod is arranged in the first hole section and the second hole section.

[0034] In some possible embodiments, in the direction perpendicular to the thickness direction of the mounting plate, the projection of the bearing is in the projection of the first hole section.

[0035] In some possible embodiments, the stirring device further comprises:

[0036] A baffle plate is connected to the mounting plate, part of the baffle plate is located on the side of the first hole section away from the second hole section, and in the thickness direction of the mounting plate, the projection of the baffle plate partially overlaps the projection of the bearing.

[0037] In some possible embodiments, the stirring device comprises at least two baffle plates, and the two baffle plates are oppositely arranged relative to the bearing.

[0038] In some possible embodiments, the driving mechanism comprises:

[0039] A driving wheel;

[0040] A driving member is connected to the driving wheel, and the driving member is adapted to drive the driving wheel to rotate;

[0041] A transmission belt is drivingly connected between the driving wheel and the stirring assembly, and the transmission belt drives the stirring paddle to rotate when the driving wheel rotates.

[0042] In some possible implementations, the stirring device further includes:

[0043] A tensioning mechanism is located between the driving wheel and the stirring assembly and connected to the transmission belt to tension the transmission belt.

[0044] In some possible implementations, the tensioning mechanism includes:

[0045] A base;

[0046] A fixed block connected to the base;

[0047] A moving block disposed on the base and spaced apart from the fixed block, the moving block being adapted to move in a direction away from and / or close to the fixed block;

[0048] A driving rod penetrating through the fixed block and connected to the moving block, the driving rod being adapted to drive the moving block to move;

[0049] A connecting rod connected to the moving block and extending away from the moving block;

[0050] An idler wheel sleeved on the connecting rod, the idler wheel being in contact with the transmission belt.

[0051] In some possible implementations, the tensioning mechanism further includes:

[0052] A second limiting member sleeved on the connecting rod, the second limiting member being disposed on a side of the idler wheel close to the moving block, the second limiting member being used to limit the position of the idler wheel on the connecting rod.

[0053] In some possible implementations, the second limiting member includes:

[0054] A second ring body sleeved on the connecting rod and spaced apart from the connecting rod, the second ring body being provided with a third threaded hole penetrating through the second ring body in a thickness direction of the second ring body;

[0055] A second locking bolt penetrating through the third threaded hole and abutting against the connecting rod to fix the second ring body relative to the connecting rod.

[0056] In some possible implementations, the stirring device further includes:

[0057] A support plate fixedly connected to the stirring box, the support plate being provided with the driving member and the tensioning mechanism.

[0058] In some possible implementations, the support plate includes:

[0059] The first plate is provided with the driving member and the tensioning mechanism, and is fixed relative to the driving member and the tensioning mechanism;

[0060] The second plate is connected to one side of the first plate and is fixedly connected to the outer side wall of the stirring box.

[0061] In some possible embodiments, the support plate further comprises:

[0062] The reinforcing plate is fixedly connected to the first plate, and two ends of the reinforcing plate are connected to the second plate and the tensioning mechanism respectively.

[0063] In some possible embodiments, the transmission belt is connected to the stirring assembly in a winding manner.

[0064] In some possible embodiments, a plurality of stirring devices are provided, and the transmission belt is connected to at least part of the stirring devices to drive rotation of the at least part of the stirring devices.

[0065] In a second aspect, the embodiments of the present application further provide a coating machine, comprising:

[0066] The stirring device as described above;

[0067] The coating roller can extend into the stirring box of the stirring device and is arranged in an interval with the stirring paddle of the stirring device.

[0068] The stirring device and the coating machine provided by the embodiments of the present application comprise a stirring box, a stirring assembly, and a driving mechanism. The stirring box is used to carry slurry and has a receiving cavity. The stirring assembly is arranged on the stirring box, and the stirring assembly comprises a stirring paddle. The stirring paddle is located in the receiving cavity and is arranged in an interval with a coating roller of the coating machine. The driving mechanism is in transmission connection with the stirring assembly to drive the stirring paddle to rotate. The slurry in the stirring box is fully stirred by the stirring paddle, so that the slurry is not easily solidified on the stirring box. In addition, the stirring paddle is arranged in an interval with the coating roller, so that interference between the stirring paddle and the coating roller is avoided, thereby ensuring that the stirring device and the coating roller can normally work. BRIEF DESCRIPTION OF DRAWINGS

[0069] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0070] Figure 1 A forward schematic view of the stirring device provided by the present application;

[0071] Figure 2 A reverse schematic view of the stirring device provided by the present application;

[0072] Figure 3A schematic view of a tensioning mechanism provided for the present application;

[0073] Figure 4 A schematic view of a stirring assembly and a baffle provided for the present application.

[0074] BRIEF DESCRIPTION OF DRAWINGS

[0075] 10 - stirring box

[0076] 20 - stirring assembly

[0077] 21 - driven wheel

[0078] 22 - first limiting member

[0079] 23 - bearing

[0080] 24 - stirring paddle

[0081] 25 - stirring rod

[0082] 26 - paddle blade

[0083] 27 - stepped surface

[0084] 30 - mounting plate

[0085] 40 - baffle

[0086] 51 - driving wheel

[0087] 52 - driving member

[0088] 53 - transmission belt

[0089] 60 - tensioning mechanism

[0090] 61 - base

[0091] 62 - fixed block

[0092] 63 - moving block

[0093] 64 - driving rod

[0094] 65 - connecting rod

[0095] 66 - idler wheel

[0096] 67 - second limiting member

[0097] 70 - support plate

[0098] 71 - first plate member

[0099] 72 - second plate member

[0100] 73 - reinforcing plate

[0101] The specific embodiments of the application have been shown by the above drawings, and will be described in more detail hereinafter. These drawings and detailed description are not intended to limit the scope of the concept of the application by any means, but to illustrate the concept of the application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0102] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. The following description is presented with reference to the accompanying drawings, in which the same numbers represent the same or similar elements throughout the several drawings. The embodiments described in the following exemplary embodiments are not meant to represent all embodiments consistent with the application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the application as detailed in the appended claims.

[0103] In the related art, a stirring shaft is generally provided, and the slurry is stirred by moving the stirring shaft left and right, so that the slurry does not coagulate. This stirring method uses reciprocating linear motion to stir the slurry, and cannot fully and uniformly stir the slurry, so the slurry can easily coagulate in dead angle positions. In particular, in the case of long-time stirring of the slurry, this stirring method can cause large fluctuation of the slurry, and can decrease the viscosity and stability of the slurry, which is not conducive to coating production.

[0104] The stirring device provided by the application is provided with a stirring assembly in the stirring box, so that the slurry is not easily coagulated on the stirring box, and the stirring paddle is also spaced apart from the coating roller, so that the stirring paddle and the coating roller do not interfere with each other, and the stirring device and the coating roller can both work normally.

[0105] The technical solutions of the application and how the technical solutions of the application solve the above technical problems will be described in detail below with reference to specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the application will be described below with reference to the drawings.

[0106] Reference Figures 1 to 4 The embodiment of the application provides a coating machine, which comprises a stirring device and a coating roller. The coating roller can extend into a stirring box 10 of the stirring device and is spaced apart from a stirring paddle 24 of the stirring device. In this way, the stirring paddle 24 can be used to stir the slurry, and the stirring paddle 24 and the coating roller are spaced apart, so that interference between the stirring paddle and the coating roller can be avoided. While the stirring speed of the stirring paddle 24 is controlled to prevent the slurry from depositing, the coating operation of the coating roller is not affected, and the coating quality can be improved. Exemplarily, the coating roller is a gravure roller. The gravure roller can be fully in contact with the slurry, and the contact between the slurry and air during the coating process can be reduced, so that the coating quality can be ensured. The slurry can be a material commonly used in existing coating machines, and the embodiment of the application does not limit the slurry.

[0107] The stirring device comprises a stirring box 10, a stirring assembly 20 and a driving mechanism. The stirring box 10 is used for carrying slurry, and has a receiving cavity. The stirring assembly 20 is arranged on the stirring box 10, and comprises a stirring paddle 24 located in the receiving cavity and configured to be spaced apart from the coating roller of the coating machine. The driving mechanism is arranged beside the stirring box 10 and in driving connection with the stirring assembly 20 to drive the stirring paddle to rotate. In this way, the stirring paddle 24 is driven to rotate by the driving mechanism, and the stirring paddle extends into the receiving cavity to stir the slurry in the receiving cavity, so that the slurry is prevented from solidifying. Moreover, the stirring paddle is spaced apart from the coating roller, and the stirring paddle and the coating roller do not interfere with each other, so that the stirring device and the coating roller can normally work.

[0108] The stirring box 10 has a receiving cavity, for example, a rectangular body, a trapezoidal body or a column body of other shapes, which is used for carrying slurry and the like. The stirring box 10 is also correspondingly provided with an opening which is in communication with the receiving cavity. The opening is, for example, located above the receiving cavity, and the slurry can be poured into the receiving cavity through the opening. Exemplarily, the stirring box 10 comprises a bottom plate and a first side plate surrounding the bottom plate. The bottom plate and the first side plate are, for example, both flat plates, and part of the first side plate can be arranged obliquely. The bottom plate and the first side plate enclose the receiving cavity, and an end of the first side plate away from the bottom plate encloses the opening of the stirring box 10. The material of the stirring box 10 can be plastic, ceramic or the like, which can be selected as needed to be non-reactive with the slurry or not to introduce impurities, and the embodiments of the present application are not limited in this regard.

[0109] Continuing to refer to Figures 1 to 4 The stirring assembly 20 is used to stir the slurry, and can fully and uniformly stir the slurry in the stirring box 10 so that the slurry does not solidify. These stirring assemblies 20 can be detachably fixed on the stirring box 10 to facilitate replacement and maintenance. In some possible examples, a plurality of stirring assemblies 20 are arranged. The plurality of stirring assemblies 20 are arranged at intervals and sequentially arranged along the circumference of the stirring box 10. For example, the stirring assembly 20 is provided with two, three or more. By arranging a plurality of stirring assemblies 20, multiple places in the stirring box 10 can be stirred to improve the stirring effect of the slurry. The position and number of the stirring assembly 20 can be selected as needed, and the embodiments of the present application are not limited in this regard.

[0110] In some possible implementations, the plurality of stirring assemblies 20 are arranged along the circumference of the stirring box 10. The plurality of stirring assemblies 20 are arranged at intervals along the circumference of the stirring box 10 and are arranged in a full circle. The plurality of stirring assemblies 20 are arranged in a full circle around the stirring box 10 to achieve stirring of the stirring box 10 in a full circle, so that the slurry close to the side of the stirring box 10 can be fully stirred and the internal slurry is moved, so that the slurry is not easily solidified, thereby improving the coating quality. For example, the plurality of stirring assemblies 20 are arranged at intervals along the circumference.

[0111] In other possible implementations, the plurality of stirring assemblies 20 are arranged in a partial area along the circumference of the stirring box 10, i.e., the plurality of stirring assemblies 20 do not surround the stirring box 10 in a full circle. For example, the plurality of stirring assemblies 20 are arranged in a half circle or two-thirds of a circle along the circumference of the stirring box 10. For another example, the plurality of stirring assemblies 20 are arranged in the area where the slurry is most easily solidified in the stirring box 10 according to requirements.

[0112] In some possible examples, the minimum distance between the stirring assembly 20 and the side wall of the containing cavity is in the range of [50mm, 80mm]. That is, the minimum distance between the stirring assembly 20 and the side wall of the containing cavity is greater than or equal to 50mm and less than or equal to 80mm. In this way, the stirring assembly 20 can stir the slurry near the side wall of the containing cavity, avoid the slurry solidifying on the side wall of the containing cavity, and also consider the stirring of the internal slurry of the containing cavity, thereby having a better stirring effect.

[0113] Referring to Figure 4 The stirring paddle 24 includes a stirring rod 25 and a paddle blade 26 arranged on the stirring rod 25. The stirring paddle 24 with the above structure does not cause large fluctuation of the slurry and can effectively avoid shearing of the slurry during stirring, thereby ensuring the viscosity and stability of the slurry and being beneficial to the production of the coating machine. The paddle blade 26 is provided with at least two, as shown in Figure 4 three paddle blades 26 are arranged at the lower end of the stirring rod 25, and the three paddle blades are, for example, arranged at intervals. The paddle blade 26 can be plate-shaped or other shapes, and the specific shape of the paddle blade 26 is not limited.

[0114] In some possible implementations, the stirring rod 25 and the at least two paddle blades 26 are an integral structure; and / or at least one of the stirring rod 25 and the paddle blade 26 includes a body and a coating layer arranged on the body. The stirring rod 25 and the paddle blade 26 are an integral structure, for example, are integrally manufactured, which can ensure the reliability of the connection between the stirring rod 25 and the paddle blade 26. At least one of the stirring rod 25 and the paddle blade 26 includes a body and a coating layer, and the materials of the body and the coating layer can be selected according to requirements, thereby avoiding reaction of the stirring rod 25 and / or the paddle blade 26 with the slurry on the basis of ensuring the strength of the stirring rod 25 and / or the paddle blade 26.

[0115] For example, the material of the body of at least one of the stirring rod 25 and the paddle 26 is SUS304, and the coating is Teflon. In this way, the rigidity of the stirring paddle 24 and / or the paddle 26 can be ensured, and the introduction of metal impurities during stirring of the slurry can be avoided.

[0116] In some possible embodiments, the stirring rod 25 comprises a first rod segment and a second rod segment, the paddle 26 is arranged on the second rod segment, the second rod segment is connected to the first rod segment at an end close to the paddle 26, and forms a step surface 27 with the first rod segment. The step surface is away from the paddle 26, so that the step surface 27 can be used to limit the components on the first rod segment from contacting the paddle 26, thereby ensuring that the paddle 26 and other components can work normally.

[0117] As shown in Figure 4 The first rod segment and the second rod segment can each be a straight rod, and the cross-sectional shape can be circular, oval, rectangular, or the like. The first rod segment and the second rod segment can be an integral structure, the surfaces of the first rod segment and the second rod segment that face each other are connected, and the surface profile of the second rod segment protrudes from the surface profile of the first rod segment. The portion of the surface of the second rod segment that is not covered by the first rod segment forms the step surface 27.

[0118] In order to realize rotation of the stirring assembly 20, the stirring assembly 20 further comprises a driven wheel 21 and a first limiting piece 22. The driven wheel 21 is sleeved on the stirring rod 25, and the driven wheel 21 and the paddle 26 are arranged at intervals. The first limiting piece 22 is arranged on the stirring rod 25 and located on the side of the driven wheel 21 close to the paddle 26. The first limiting piece 22 is used to limit the position of the driven wheel 21 on the stirring paddle 24.

[0119] The driven wheel 21 is sleeved on the stirring paddle 24, for example, a through hole is arranged on the driven wheel 21 to allow the stirring paddle 24 to pass through. The driven wheel 21 is fixedly connected with the stirring paddle 24, for example, the through hole of the driven wheel 21 is in interference fit with the stirring paddle 24, so that the driven wheel 21 can drive the stirring paddle 24 to rotate. The driven wheel 21 can be a toothed driven wheel 21 or a toothless driven wheel 21. The driven wheel 21 rotates under the action of the driving member 52 and drives the stirring paddle 24 to rotate, for example, synchronously, so that the stirring paddle 24 can stir the slurry.

[0120] The first limiting member 22 is arranged on the stirring paddle 24 and can be fixed at different positions of the stirring paddle 24. The first limiting member 22 is arranged below the driven wheel 21 and can be in contact with the driven wheel 21 to limit the position of the driven wheel 21, that is, the first limiting member 22 is used to limit the height of the driven wheel 21, so that the height between each driven wheel 21 and the driving member 52 is matched, for example, each driven wheel 21 is at the same height as the driving wheel 51 in the driving member 52. The first limiting member 22 is also arranged in a spaced manner with the paddle 26, for example, the first limiting member 22 is arranged in a spaced manner with at least two paddles 26, which is convenient for installation on the stirring box 10.

[0121] In some possible implementation manners, the first limiting member 22 includes a first ring body and a first locking bolt. The first ring body is arranged on the stirring rod 25 in a spaced manner and is provided with a first threaded hole penetrating through the first ring body in the thickness direction of the first ring body. The first locking bolt is arranged in the first threaded hole and abuts against the stirring paddle 24, so that the first ring body is fixed relative to the stirring paddle 24. In this way, the position of the first limiting member 22 on the stirring paddle 24 can be continuously changed, so that the position of the first limiting member 22 and the driven wheel 21 can be flexibly adjusted.

[0122] The first ring body can be a circular ring, an elliptical ring, a rectangular ring or the like, and the first ring body has a through hole for the stirring paddle 24 to pass through. The first ring body is arranged in a spaced manner with the stirring paddle 24, for example, in a clearance fit, and the first ring body can move along the stirring paddle 24. The first ring body is provided with a first threaded hole penetrating through the first ring body in the thickness direction of the first ring body. That is, the first threaded hole penetrates through the inner side wall and the outer side wall of the first ring body.

[0123] The first locking bolt is arranged in the first threaded hole and is in threaded fit with the first threaded hole. One end of the first locking bolt protrudes outward from the outer side wall of the first ring body, and the other end protrudes outward from the inner side wall of the first ring body. By screwing the first locking bolt, the length of the first locking bolt protruding outward can be adjusted, the stirring rod 25 can be abutted, and the stirring rod 25 is further abutted against the first ring body, so that the stirring rod 25 is abutted, and the first ring body and the stirring rod 25 are relatively fixed. The first locking bolt can be provided with one or more, and the embodiments of the present application are not limited thereto.

[0124] In other implementation manners, the first limiting member 22 can also be connected to the stirring paddle 24 in other forms, for example, the first limiting member 22 includes a first ring body, a spring and a limiting pin. The inner wall of the first ring body is provided with a mounting groove, the spring and the limiting pin are arranged in the mounting groove, one end of the spring abuts against the bottom wall of the mounting groove, and the other end abuts against the limiting pin. The stirring paddle 24 is correspondingly provided with at least two accommodating grooves for the limiting pin to protrude into.

[0125] The stirring assembly 20 further comprises a bearing 23, which is sleeved on the stirring rod 25 and located between the paddle 26 and the first limiting member 22, and is fixedly connected with the stirring rod 25. The bearing 23 is arranged on the stirring rod 25 and between the paddle 26 and the first limiting member 22, and does not affect the stirring effect of the paddle 26 on the slurry or the supporting effect of the first limiting member 22 on the driven wheel 21.

[0126] For example, the inner ring of the bearing 23 is sleeved on the stirring rod 25 and fixedly connected with the stirring rod 25, for example, by interference fit, so that the stirring rod 25 can rotate relative to the outer ring of the bearing 23, thereby realizing the rotation of the stirring rod 25 relative to the stirring box 10, thereby driving the paddle 26 to rotate to stir the slurry. The bearing 23 can be a micro or small bearing, for example, a small deep groove ball bearing, a small cylindrical roller bearing, a small tapered roller bearing, etc., so as to facilitate the installation of the bearing 23 and reduce the load bearing of the stirring box 10.

[0127] In the example in which the stirring rod 25 comprises the first rod segment and the second rod segment, the bearing 23, the first limiting member 22 and the driven wheel 21 are all arranged on the first rod segment, and the step surface formed by the second rod segment and the first rod segment faces the bearing 23 to limit the bearing 23. Among them, the bearing 23, the first limiting member 22 and the driven wheel 21 are arranged in sequence in the direction away from the paddle 26, and the bearing 23 at most abuts against the step surface 27 and is difficult to move to the second rod segment, thereby avoiding the contact between the bearing 23 and the paddle 26.

[0128] In order to facilitate the installation and disassembly of the stirring assembly 20 on the stirring box 10, the stirring box 10 comprises a bottom plate and a first side plate arranged on one side of the bottom plate, and the bottom plate and the first side plate form an accommodating cavity. The stirring device further comprises a mounting plate 30 arranged at one end of the first side plate away from the bottom plate, and the mounting plate 30 is connected with the stirring assembly 20. In this way, the mounting plate 30 can support and fix the stirring assembly 20, and when disassembling, only the mounting plate 30 needs to be removed from the stirring box 10, without the need to disassemble the stirring assembly 20 one by one, thereby facilitating the disassembly of the stirring paddle 24. The mounting plate 30 can be connected with the stirring box 10 by using threaded fasteners, and the mounting plate 30, for example, comprises a plurality of sub-plates arranged at intervals on the first side plate of the stirring box 10, and each sub-plate is connected with a plurality of stirring assemblies 20. In other examples, the plurality of sub-plates can also be in contact.

[0129] Among them, the mounting plate 30 further forms an opening which is in communication with the accommodating cavity to allow the coating roller to pick up the slurry. For example, the mounting plate 30 is arranged around the stirring box 10 along the circumferential direction of the stirring box 10. The opening formed by the mounting plate 30 can be opposite and in communication with the opening on the stirring box 10, so that the coating roller can enter the accommodating cavity of the stirring box 10 to pick up the slurry.

[0130] In some possible examples, the paddle 26 of the stirring paddle 24 and the driven wheel 21 are located on two sides of the mounting plate 30 respectively, facilitating the paddle 26 to extend into the accommodating cavity and facilitating the driven wheel 21 to be connected to the driving mechanism. The bearing 23 is arranged in the mounting plate 30, for example, to enable the stirring paddle 24 to rotate relative to the mounting plate 30. The first limiting part 22 is located outside the mounting plate 30, for example, and is arranged on the same side as the driven wheel 21.

[0131] In some possible examples, the mounting plate 30 is provided with a first through hole penetrating through the mounting plate 30 in the thickness direction of the mounting plate 30. The first through hole includes a first hole section and a second hole section connected to each other. The first hole section is away from the accommodating cavity relative to the second hole section. The hole diameter of the first hole section is greater than the hole diameter of the second hole section. The bearing 23 is arranged in the first hole section. The diameter of the bearing 23 is greater than the hole diameter of the second hole section. The stirring rod 25 is arranged in the first hole section and the second hole section. The bearing 23 is arranged in the first hole section, so that the stirring rod 25 can rotate relative to the mounting plate 30, and the bearing 23 can be positioned, reducing the movement of the bearing 23.

[0132] In the thickness direction of the mounting plate 30, the bearing 23 is arranged in the first hole section, and the bearing 23 and the first hole section can be arranged with a gap therebetween, facilitating the installation of the bearing 23. In the thickness direction of the mounting plate 30, the size of the bearing 23 is less than or equal to the size of the first hole section, that is, the height of the bearing 23 is less than or equal to the depth of the first hole section. In this way, the bearing 23 can be completely arranged in the first hole section, that is, the bearing 23 can be embedded in the mounting plate 30, avoiding the protrusion of the bearing 23 from the mounting plate 30.

[0133] The first through hole can be provided with at least two first through holes corresponding to the bearings 23 of the at least two stirring assemblies 20 respectively. The first hole section corresponding to the bearing 23 can be arranged in interference fit or gap fit. The second hole section corresponding to the stirring paddle 24 has a gap, avoiding interference with the rotation of the stirring paddle 24. The specific shape of the first hole section and the second hole section is not limited and can be selected as needed.

[0134] In some possible examples, the stirring device further includes a baffle 40 connected to the mounting plate 30. Part of the baffle 40 is located on the side of the first hole section away from the second hole section. In the thickness direction of the mounting plate 30, the projection of the baffle 40 and the projection of the bearing 23 partially overlap. The baffle 40 is a flat plate, for example, and is connected to the mounting plate 30 by a threaded fastener. The material of the baffle 40 can be the same as or different from that of the mounting plate 30. Part of the baffle 40 is in contact with the mounting plate 30, and part of the baffle 40 is located above the first hole section and opposite the bearing 23. By arranging the baffle 40 to shield part of the groove and part of the bearing 23, the bearing 23 can be positioned, avoiding the limitation of the bearing 23 during rotation.

[0135] On the basis of the above examples, in some possible embodiments, the stirring device comprises at least two baffles 40, which are oppositely arranged relative to the bearings 23. For example, the baffles 40 are arranged along the extension direction of the mounting plate 30, and each bearing 23 is opposite to two baffles 40, so that the bearings 23 can be limited at two positions, which can effectively prevent the bearings 23 from being separated from the grooves. Among them, the two baffles 40 are arranged on both sides of the corresponding bearing 23, and the limiting effect is better.

[0136] Referring to Figures 1 to 4 The driving mechanism is in transmission connection with the stirring paddle 24 in the stirring assembly 20, and is used to drive the stirring paddle 24 to rotate to stir the slurry. The driving mechanism can comprise a driving wheel 51, a driving member 52 and a transmission belt 53. The driving member 52 is connected with the driving wheel 51, and is adapted to drive the driving wheel 51 to rotate. The transmission belt 53 connects the driving wheel 51 and the stirring assembly 20, and drives the stirring paddle 24 to rotate when the driving wheel 51 rotates. The driving member 52 is used to drive the driving wheel 51 to rotate, and the transmission belt 53 is further used to drive the driven wheel 21 to rotate, so as to drive the stirring paddle 24 to rotate and realize stirring.

[0137] Among them, the driving member 52 can be arranged beside the stirring box 10, which is a pneumatic cylinder or a motor. The output end of the pneumatic cylinder or the motor is connected with the driving wheel 51, so as to drive the driving wheel 51 to rotate. The motor is a stepper motor, which can realize reciprocating rotation and rotation in the same direction, and can better meet the actual use requirements.

[0138] The driving wheel 51 can also be arranged beside the stirring box 10, so as to be connected with the driving member 52. For example, the driving wheel 51 and the driving member 52 are arranged above and below each other, so as to match the height of the driven wheel 21 with the driving wheel 51. The transmission belt 53 is wound around each driving wheel 51 and driven wheel 21, and is in contact with each driving wheel 51 and driven wheel 21. The transmission belt 53 is a synchronous belt, and the driving wheel 51 and the driven wheel 21 are corresponding synchronous wheels, so that each stirring paddle 24 can be synchronously rotated in the clockwise or counterclockwise direction, and the slurry in the dead angle position in the stirring box 10 can be better prevented from condensing.

[0139] For example, the transmission belt 53 is connected between the at least two driven wheels 21 in a winding manner, so as to ensure that the driven synchronous wheels have the same torque when rotating, and drive all the driven wheels 21 to rotate. Figure 1 and Figure 3The winding connection means that the transmission belt 53 is located on different sides of each driven wheel 21, specifically, the transmission belt 53 is located on one side of part of the driven wheels 21 which are close to each other (i.e. adjacent to the accommodating cavity), and is located on the side of another part of the driven wheels 21 which are away from each other (i.e. away from the accommodating cavity). For example, in part of the continuously arranged driven wheels 21, the transmission belt 53 is located on different sides of two adjacent driven wheels 21. In two or three adjacent driven wheels 21 at the corner of the stirring box 10, the transmission belt 53 can be located on the same side of the driven wheels 21.

[0140] In some possible examples, the stirring device is provided with multiple, and the transmission belt 53 is connected with at least part of the stirring device to drive at least part of the stirring device. That is, the transmission belt 53 can drive all the stirring devices to stir the slurry, or can drive part of the stirring devices to stir the slurry, which can improve the stirring effect of the slurry. In this way, at least part of the stirring devices can be stirred together as needed.

[0141] In some possible examples, the stirring assembly 20 is provided with multiple, that is, the stirring paddle 24 has multiple, and the transmission belt 53 can be connected with part of the stirring assemblies 20 in one stirring device to drive part of the stirring paddles 24 to rotate, and the remaining stirring paddles 24 in the stirring device can be driven and / or transmitted in other ways. In this way, the stirring speed of the stirring paddles 24 at different positions can be set as needed, that is, the stirring speed of each stirring paddle 24 is adapted to the solidification speed of the slurry at the position where the stirring paddle 24 is located, thereby improving the stirring effect. For example, the stirring speed of the stirring paddles 24 at positions where the slurry is prone to solidification can be faster, and the stirring speed of the stirring paddles 24 at positions where the slurry is not prone to solidification can be slower. The transmission belt 53 can also be connected with all the stirring assemblies 20 in one stirring device to drive all the stirring paddles 24 to rotate, so as to simplify the structure.

[0142] In order to adjust the tension of the transmission belt 53, the stirring device further comprises a tensioning mechanism 60. The tensioning mechanism 60 is arranged beside the stirring box 10, is located between the driving wheel 51 and the driven wheel 21, and is connected with the transmission belt 53 to tension the transmission belt 53. The transmission belt 53 is contacted by the tensioning mechanism 60, and the tension of the transmission belt 53 can be adjusted without disassembling the driving member 52, which is convenient to operate.

[0143] In some possible embodiments, the tensioning mechanism 60 comprises a base 61, a fixed block 62, a moving block 63, a driving rod 64, a connecting rod 65, and an idler wheel 66. The fixed block 62 is connected to the base 61. The moving block 63 is disposed on the base 61 and is spaced apart from the fixed block 62, and is movable in a direction away from and / or towards the fixed block 62. The driving rod 64 is disposed through the fixed block 62 and is connected to the moving block 63, and is adapted to drive the moving block 63 to move. The connecting rod 65 is connected to the moving block 63 and extends away from the moving block 63. The idler wheel 66 is sleeved on the connecting rod 65 and is in contact with the transmission belt 53. The position between the moving block 63 and the fixed block 62 can be adjusted by driving the moving block 63 to move towards or away from the fixed block 62, so as to adjust the position of the connecting rod 65 and the idler wheel 66 relative to the fixed block 62, and to adjust the tension of the transmission belt 53.

[0144] The base 61 provides support for structures thereon and matches the height of the idler wheel 66 with that of the driving wheel 51. The base 61, for example, has an inverted U shape to reduce the weight of the base 61. The base 61, for example, comprises two second side plates oppositely arranged and a top plate disposed on the two second side plates, and the fixed block 62 and the moving block 63 are disposed on the top plate. The top plate and the second side plates, for example, are both flat plates and can form an integrated structure.

[0145] The fixed block 62 is fixed relative to the base 61, for example, the fixed block 62 is welded, clamped, connected by a threaded fastener, or the like, to the base 61. The moving block 63 is disposed on the base 61 and is movable relative to the base 61. The moving block 63 is spaced apart from the fixed block 62 and is movable towards or away from the fixed block 62. The specific shape and structure of the fixed block 62 and the moving block 63 are not limited, for example, the fixed block 62 and the moving block 63 can both be rectangular bodies.

[0146] In some possible examples, the fixed block 62 is provided with a second through hole, the moving block 63 is provided with a second threaded hole, the driving rod 64 is a driving bolt, the head of the driving bolt is in abutment with the fixed block 62, the shank of the driving bolt is disposed through the second through hole and is connected to the second threaded hole. In this way, the fixed block 62 can limit the driving bolt, and the distance between the moving block 63 and the fixed block 62 can be adjusted by adjusting the extension amount of the driving bolt.

[0147] The second through hole is opposite to the second threaded hole, and the fixed block 62 and the moving block 63 are arranged along the extension direction of the driving bolt. The head of the driving bolt is difficult to pass through the second through hole of the fixed block 62, and the head of the driving bolt abuts against the fixed block 62. The screw rod of the driving bolt passes through the second through hole of the fixed block 62, and there is a gap between the screw rod of the driving bolt and the second through hole of the fixed block 62, and the second threaded hole of the moving block 63 is screwed. When the head of the driving bolt is screwed, the screw rod of the driving bolt rotates relative to the second threaded hole, and the moving block 63 does not rotate on the base 61, so that the length of the screw rod of the driving bolt in the second threaded hole changes, so that the moving block 63 approaches or moves away from the fixed block 62.

[0148] The connecting rod 65 is fixed on the moving block 63 to move together with the moving block 63. The connecting rod 65 extends away from the moving block 63, and the shape, length, specific structure and the like are not limited, and can be selected as required, for example, the connecting rod 65 can be a cylindrical rod. The idler wheel 66 is sleeved on the connecting rod 65, and the idler wheel 66 does not transmit power and only plays a tensioning role. The idler wheel 66 contains a bearing, the inner ring of the bearing can be interference fit with the connecting rod 65, and the outer ring of the idler wheel 66 abuts against the transmission belt 53.

[0149] In order to further adjust the height of the idler wheel 66, the tensioning mechanism 60 further comprises a second limiting piece 67, which is arranged on the connecting rod 65. The second limiting piece 67 is arranged on the side of the idler wheel 66 close to the moving block 63, and the second limiting piece 67 is used to limit the position of the idler wheel 66 on the connecting rod 65. The second limiting piece 67 can be fixed at different positions of the connecting rod 65, so as to limit the height of the idler wheel 66, so as to adapt to the height of the driving wheel 51 and the driven wheel 21. The second limiting piece 67 is specifically arranged below the idler wheel 66 and can be in contact with the idler wheel 66 to limit the position of the idler wheel 66, that is, the second limiting piece 67 is used to limit the height of the idler wheel 66, so that the idler wheel 66 is adapted to the height of the driving wheel 51 and the driven wheel 21, for example, the height of the idler wheel 66, the driving wheel 51 and the driven wheel 21.

[0150] In some possible implementations, the second limiting piece 67 comprises a second ring body and a second locking bolt. The second ring body is sleeved on the connecting rod 65 and is arranged in spaced apart manner with the connecting rod 65, and the second ring body is provided with a third threaded hole penetrating through the second ring body in the thickness direction of the second ring body; the second locking bolt is arranged in the third threaded hole and abuts against the connecting rod 65, so that the second ring body is fixed relative to the connecting rod 65.

[0151] The second ring body can be a circular ring, an elliptical ring, a rectangular ring, etc. The second ring body has a through hole for the connecting rod 65 to pass through. The second ring body is arranged in a spaced manner with the connecting rod 65, for example, in a clearance fit, and the second ring body can move along the connecting rod 65. The second ring body is provided with a third threaded hole penetrating the second ring body in the thickness direction of the second ring body, that is, the third threaded hole penetrates the inner side wall and the outer side wall of the second ring body.

[0152] The second locking bolt is arranged in the third threaded hole and threadedly cooperates with the third threaded hole. One end of the second locking bolt protrudes outward from the outer side wall of the second ring body, and the other end protrudes outward from the inner side wall of the second ring body. By screwing the second locking bolt, the length of the second locking bolt protruding outward can be adjusted, so as to abut against the connecting rod 65 and further abut the connecting rod 65 against the second ring body, thereby relatively fixing the second ring body and the connecting rod 65. The second locking bolt can be provided with one or more, and the second limiting member 67 can also be connected with the connecting rod 65 in other forms, which is not limited in the embodiments of the application.

[0153] In the above-described tensioning mechanism 60, the idler wheel 66 is connected with the driving wheel 51 and the driven wheel 21 through the transmission belt 53. When the driving wheel 51 is driven to rotate by the driving member 52, the moving block 63 can be moved on the base 61 with the idler wheel 66 by adjusting the driving rod 64, so as to ensure the tensioning force of the transmission belt 53, drive the driven wheel 21 to rotate, and drive the stirring paddle 24 to rotate, so as to achieve the purpose of stirring the slurry.

[0154] Continuing to refer to Figure 1 and Figure 2 Figure 2 , the stirring device further comprises a support plate 70 fixedly connected with the stirring box 10. The support plate 70 is provided with the driving member 52 and the tensioning mechanism 60, so as to support the driving member 52 and the tensioning mechanism 60 and facilitate installation. The support plate 70 is fixedly connected with the stirring box 10, for example, through a threaded fastener.

[0155] In some possible examples, the support plate 70 comprises a first plate member 71 and a second plate member 72. The first plate member 71 is provided with the driving member 52 and the tensioning mechanism 60 and is fixedly connected with the driving member 52 and the tensioning mechanism 60. The second plate member 72 is connected to one side of the first plate member 71 and is connected with the outer side wall of the stirring box 10. The first plate member 71 and the second plate member 72 can both be flat plates, and the first plate member 71 and the second plate member 72 can be L-shaped or T-shaped. The first plate member 71 can be used to support the driving member 52 and the tensioning mechanism 60, and the second plate member 72 can be used to fix the support plate 70 to the outer side of the stirring box 10.

[0156] The first plate member 71 bears the driving member 52 and the tensioning mechanism 60, and is fixedly connected with the driving member 52 and the base 61 by threaded fasteners. In order to improve the stability of the tensioning mechanism 60, the support plate 70 further comprises a reinforcing plate 73 fixedly connected to the first plate member 71, and the two ends of the reinforcing plate 73 are connected to the second plate member 72 and the tensioning mechanism 60, respectively. By forming a reinforcing rib with the reinforcing plate 73, the tensioning mechanism 60 and the second plate member 72 can be further fixed relative to each other, thereby improving the stability of the tensioning mechanism 60.

[0157] For example, the reinforcing plate 73 is L-shaped, and is placed on the first plate member 71 and located between the second plate member 72 and the base 61. The reinforcing plate 73 is in contact with and fixed relative to the first plate member 71, the second plate member 72 and the base 61, for example, by threaded fasteners.

[0158] The stirring device provided by the embodiment of the present application is used for stirring slurry of a coating machine, and comprises a stirring box 10, a stirring assembly 20, and a driving mechanism. The stirring box 10 is used for bearing the slurry, and has a receiving cavity; the stirring assembly 20 is arranged on the stirring box 10, and comprises a stirring paddle 24, which is located in the receiving cavity and is arranged in a spaced manner with a coating roller of the coating machine; and the driving mechanism is in transmission connection with the stirring assembly 20 to drive the stirring paddle 24 to rotate. The slurry in the stirring box 10 is fully stirred by the stirring paddle 24, so that the slurry is not easily solidified on the stirring box 10. In addition, the stirring paddle 24 is arranged in a spaced manner with the coating roller, so that interference between the stirring paddle 24 and the coating roller is avoided, thereby ensuring that the stirring device and the coating roller can normally work.

[0159] Finally, it should be noted that: other embodiments of the application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. The application is intended to cover any variations, uses or adaptive changes to the application following the general principles of the application and including known or customary technical means in the art not disclosed by the application, and is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the application is only limited by the appended claims.

Claims

1. A stirring device, characterized in that, Slurry for a mixer coater, the mixer comprising: a mixing box (10) for carrying the slurry, the mixing box (10) having a receiving cavity; a mixing assembly (20) disposed on the mixing box (10), the mixing assembly (20) comprising a mixing paddle (24) located within the receiving cavity and configured to be spaced apart from a coating roller of the coater; a driving mechanism in driving connection with the mixing assembly (20) to drive the mixing paddle (24) to rotate.

2. The stirring device according to claim 1, characterized in that A plurality of the mixing assemblies (20) are arranged in an interval and sequentially disposed along a circumference of the mixing box (10).

3. The stirring device of claim 2, wherein The plurality of the mixing assemblies (20) are disposed along the circumference to surround the mixing box (10).

4. The stirring device of claim 1, wherein A minimum distance between the mixing assembly (20) and a side wall of the receiving cavity is in a range of [50mm, 80mm].

5. The stirring device of claim 1, wherein The mixing paddle (24) comprises a mixing rod (25) and a paddle blade (26) disposed on the mixing rod (25). The mixing assembly (20) further comprises: a driven wheel (21) sleeved on the mixing rod (25), the driven wheel (21) being spaced apart from the paddle blade (26); a first limiting member (22) disposed on the mixing rod (25) and located on a side of the driven wheel (21) close to the paddle blade (26), the first limiting member (22) being used to limit a position of the driven wheel (21) on the mixing paddle (24).

6. The stirring device of claim 5, wherein The first limiting member (22) comprises: a first ring body sleeved on the mixing rod (25) and spaced apart from the mixing paddle (24), the first ring body being provided with a first threaded hole penetrating through the first ring body along a thickness direction of the first ring body; a first locking bolt penetrating through the first threaded hole and abutting against the mixing rod (25) to fix the first ring body relative to the mixing paddle (24).

7. The stirring device of claim 5, wherein The paddle blade (26) is at least two, and the paddle blade (26) and the first limiting member (22) are spaced apart.

8. The stirring device of claim 7, wherein The mixing rod (25) and the at least two paddle blades (26) are in an integral structure. And / or, at least one of the mixing rod (25) and the paddle blade (26) comprises a body and a coating layer disposed on the body.

9. The stirring device of claim 8, wherein The material of the body comprises at least one of stainless steel and alloy steel; and / or, the material of the coating layer comprises at least one of polytetrafluoroethylene, polyethylene, polyether ether ketone and ceramic.

10. The stirring device of claim 5, wherein The mixing assembly (20) further comprises: a bearing (23) sleeved on the mixing rod (25) and located between the paddle blade (26) and the first limiting member (22), the bearing (23) being fixedly connected with the mixing rod (25).

11. The stirring device of claim 10, wherein The mixing rod (25) comprises: a first rod segment, the bearing (23), the driven wheel (21) and the first limiting member (22) being disposed on the first rod segment; A second rod segment, the paddle (26) is arranged on the second rod segment, the second rod segment is connected to the first rod segment near one end of the paddle (26), and forms a step surface (27) with the first rod segment, the step surface (27) is towards the bearing (23), to limit the bearing (23).

12. The stirring device of claim 10, wherein The stirring box (10) comprises a bottom plate and a first side plate, one end of the first side plate is connected to the bottom plate, and the first side plate surrounds to form the containing cavity; The stirring device further comprises: The mounting plate (30) is connected to the end of the first side plate away from the bottom plate, the mounting plate (30) is provided with a first through hole, at least part of the stirring assembly (20) is arranged in the first through hole, and the stirring assembly (20) is fixedly connected to the mounting plate.

13. The stirring device of claim 12, wherein The mounting plate (30) is provided with an opening, the opening is communicated with the containing cavity, so that the coating roller enters the containing cavity to stick the slurry.

14. The stirring device of claim 12, wherein The first through hole comprises a first hole segment and a second hole segment connected to each other, the first hole segment is away from the containing cavity relative to the second hole segment, and the diameter of the first hole segment is greater than the diameter of the second hole segment; The bearing (23) is arranged in the first hole segment, and the diameter of the bearing (23) is greater than the diameter of the second hole segment, and the stirring rod (25) is arranged in the first hole segment and the second hole segment.

15. The stirring device of claim 14, wherein In the direction perpendicular to the thickness direction of the mounting plate (30), the orthogonal projection of the bearing (23) is in the orthogonal projection of the first hole segment.

16. The stirring device of claim 14, wherein The stirring device further comprises: The baffle (40) is connected with the mounting plate (30), part of the baffle (40) is located on the side of the first hole segment away from the second hole segment, and the orthogonal projection of the baffle (40) and the orthogonal projection of the bearing (23) partially overlap in the thickness direction of the mounting plate (30).

17. The stirring device of claim 16, wherein The stirring device comprises at least two baffles (40), and the two baffles (40) are oppositely arranged relative to the bearing (23).

18. The mixing apparatus of any one of claims 1-17, wherein, The driving mechanism comprises: A driving wheel (51); A driving member (52) connected with the driving wheel (51), the driving member (52) is suitable for driving the driving wheel (51) to rotate; A transmission belt (53) drivingly connecting the driving wheel (51) and the stirring assembly (20), the transmission belt (53) drives the stirring paddle (24) to rotate when the driving wheel (51) rotates.

19. The stirring device of claim 18, wherein The stirring device further comprises: A tensioning mechanism (60) located between the driving wheel (51) and the stirring assembly (20) and connected with the transmission belt (53) to tension the transmission belt (53).

20. The stirring device of claim 19, wherein The tensioning mechanism (60) comprises: A base (61); A fixed block (62) connected with the base (61); A moving block (63) arranged on the base (61) and spaced apart from the fixed block (62), the moving block (63) is suitable for moving away from and / or close to the fixed block (62); A driving rod (64) penetrating through the fixed block (62) and connected with the moving block (63), the driving rod (64) is suitable for driving the moving block (63) to move; A connecting rod (65) is connected with the moving block (63) and extends away from the moving block (63); An idler (66) is sleeved on the connecting rod (65), and the idler (66) is in contact with the transmission belt (53).

21. The apparatus of claim 20, wherein, The tensioning mechanism (60) further comprises: A second limiting member (67) is arranged on the connecting rod (65), and the second limiting member (67) is arranged on a side of the idler (66) close to the moving block (63), and the second limiting member (67) is used for limiting the position of the idler (66) on the connecting rod (65).

22. The stirring device of claim 21, wherein The second limiting member (67) comprises: A second ring body is sleeved on the connecting rod (65) and is arranged in a spaced manner with the connecting rod (65), and the second ring body is provided with a third threaded hole penetrating through the second ring body in the thickness direction of the second ring body; A second locking bolt is arranged in the third threaded hole and abuts against the connecting rod (65), so that the second ring body is fixed relative to the connecting rod (65).

23. The apparatus of claim 19, wherein The stirring device further comprises: A support plate (70) is fixedly connected with the stirring box (10), and the support plate (70) is provided with the driving member (52) and the tensioning mechanism (60).

24. The apparatus of claim 23, wherein, The support plate (70) comprises: A first plate member (71) is provided with the driving member (52) and the tensioning mechanism (60), and is fixed relative to the driving member (52) and the tensioning mechanism (60); A second plate member (72) is connected on one side of the first plate member (71) and is fixedly connected with the outer side wall of the stirring box (10).

25. The apparatus of claim 24, wherein, The support plate (70) further comprises: A reinforcing plate (73) is fixedly connected with the first plate member (71), and the reinforcing plate (73) is connected with the second plate member (72) and the tensioning mechanism (60) respectively.

26. The apparatus of claim 18, wherein The transmission belt (53) and the stirring assembly (20) are connected in a winding manner.

27. The apparatus of claim 18, wherein A plurality of stirring devices are provided, and the transmission belt (53) is connected with at least part of the stirring devices to drive at least part of the stirring devices.

28. A coater characterized by comprising: The stirring device comprises: The stirring device according to any one of claims 1-27; A coating roller can be inserted into the stirring box (10) of the stirring device and is arranged in a spaced manner with the stirring paddle (24) of the stirring device.

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