Roller press device and coating apparatus

Abstract

The application discloses a roller pressing device and a coating equipment, which comprises a pressing roller mechanism, a roller gap adjusting mechanism and a coating mechanism. The pressing roller mechanism comprises a first roller assembly and a second roller assembly. The first roller assembly and the second roller assembly are arranged adjacently. The first roller assembly comprises a first mounting and a first roller. The first roller is rotationally connected with the first mounting. The second roller assembly comprises a second mounting and a second roller. The second roller is rotationally connected with the second mounting. The roller gap adjusting mechanism comprises at least one roller gap adjusting assembly. The roller gap adjusting assembly is arranged between the first mounting and the second mounting. The roller gap adjusting assembly comprises a hydraulic drive and a wedge-shaped block. The wedge-shaped block is arranged on the first mounting or the second mounting. The hydraulic drive is slidably connected with the wedge-shaped block and the second mounting respectively, or the hydraulic drive is slidably connected with the wedge-shaped block and the first mounting respectively.

Description

Technical Field

[0001] This application belongs to the field of coating technology, and in particular relates to a roller pressing device and coating equipment. Background Technology

[0002] During the dry coating process of lithium batteries, the different strengths of the positive and negative electrode materials lead to different roll gaps in the calendering process. Therefore, precise adjustment of the roll gap is crucial in the production process of electrode materials.

[0003] In related technologies, the driving force of the roll gap adjustment component is usually provided by the drive screw. However, the thrust of the drive screw is limited, making it difficult to adjust the roll gap while maintaining pressure. After the pressure is released, the bearing housings of each roll and the roll gap adjustment device between the roll gaps will generate a certain amount of clearance and springback. This results in the roll gap not being able to be adjusted accurately, which in turn makes it impossible to accurately guarantee the performance of the calendered electrode material. Utility Model Content

[0004] The purpose of this application is to provide a roller pressing device and a coating equipment.

[0005] According to a first aspect of the embodiments of this application, a roller pressing apparatus is provided, comprising: A pressure roller mechanism, comprising a first roller assembly and a second roller assembly, wherein the first roller assembly and the second roller assembly are arranged adjacent to each other, the first roller assembly includes a first mounting member and a first roller, the first roller being rotatably connected to the first mounting member, and the second roller assembly includes a second mounting member and a second roller, the second roller being rotatably connected to the second mounting member; A roll gap adjustment mechanism includes at least one roll gap adjustment component, which is disposed between a first mounting member and a second mounting member. The roll gap adjustment component includes a hydraulic drive and a wedge block. The wedge block is disposed on the first mounting member or the second mounting member. The hydraulic drive is slidably connected to the wedge block and the second mounting member respectively, or the hydraulic drive is slidably connected to the wedge block and the first mounting member respectively.

[0006] Optionally, the hydraulic drive component includes a hydraulic cylinder and a connecting member, the connecting member being disposed at the drive end of the hydraulic cylinder, and the connecting member being slidably connected to the wedge block and the second mounting member respectively.

[0007] Optionally, the side of the wedge block that contacts the hydraulic drive component is an inclined surface.

[0008] Optionally, along the radial direction of the first roller, the distance between the side of the inclined surface away from the hydraulic cylinder and the second mounting member is a first distance, and the distance between the side of the inclined surface away from the hydraulic cylinder and the second mounting member is a second distance, wherein the first distance is greater than the second distance.

[0009] Optionally, the inclined surface is provided with an oil groove.

[0010] Optionally, the first mounting component includes a first mounting base and a second mounting base, the first mounting base and the second mounting base being spaced apart along the axial direction of the first roller, one end of the first roller being rotatably connected to the first mounting base, and the other end of the second roller being rotatably connected to the second mounting base; The second mounting component includes a third mounting base and a fourth mounting base, which are spaced apart along the axial direction of the second roller. One end of the second roller is rotatably connected to the third mounting base, and the other end of the second roller is rotatably connected to the fourth mounting base. The roll gap adjustment mechanism includes two roll gap adjustment components, one of which is located between the first mounting base and the third mounting base, and the other of which is located between the second mounting base and the fourth mounting base.

[0011] Optionally, the pressure roller mechanism includes a plurality of first roller assemblies and a plurality of second roller assemblies, wherein the first roller assemblies and the second roller assemblies are arranged alternately; The roller pressing device includes multiple roller gap adjustment mechanisms, and each of the first roller assembly and the second roller assembly is provided with a roller gap adjustment mechanism.

[0012] Optionally, the roller pressing device further includes a first thrust mechanism and a second thrust mechanism, which are respectively located on both sides of the pressing roller mechanism along the radial direction of the first roller.

[0013] Optionally, the first thrust mechanism includes a first drive assembly and a first push assembly. The first push assembly abuts against the side of the first mounting member or the second mounting member away from the roll gap adjustment mechanism. The drive end of the first drive assembly abuts against the first push assembly. The first drive assembly is capable of driving the first push assembly to press the pressure roller mechanism in the direction of the second thrust mechanism; and / or The second thrust mechanism includes a second drive component and a second push component. The second push component abuts against the first mounting member or the side of the second mounting member away from the roll gap adjustment mechanism. The drive end of the second drive component abuts against the second push component. The second drive component can drive the second push component to squeeze the pressure roller mechanism in the direction of the first thrust mechanism.

[0014] According to a second aspect of the embodiments of this application, a coating apparatus is provided, including the roller pressing device described above.

[0015] One technical advantage of this application embodiment is that the driving force of the roll gap adjustment component is directly driven by a hydraulic drive component. Compared with the method of using a drive screw, the hydraulic drive component itself has the characteristic of outputting greater power. Therefore, when the first roller and the second roller are working, the hydraulic drive component can output a greater thrust to the wedge block and thus achieve online adjustment of the roll gap. That is, it is not necessary to ensure the adjustment of the roll gap when the first roller and the second roller are depressurized, thereby avoiding the problem of roll gap instability after depressurization.

[0016] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0018] Figure 1 This is a schematic diagram of the structure of the roller pressing device in the embodiments of this application; Figure 2 This is a schematic diagram of the roll gap adjustment mechanism in the embodiments of this application; Figure 3 This is a schematic diagram of the wedge block structure in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the roller pressing device in the embodiments of this application; Figure 5 This is a schematic diagram of the roller pressing device in the embodiments of this application.

[0019] Explanation of reference numerals in the attached drawings: Roller pressing device 100; Press roller mechanism 1; First roller assembly 11; First mounting part 111; First mounting seat 1111; Second mounting seat 1112; First roller 112; Second roller assembly 12; Second mounting part 121; Third mounting seat 1211; Fourth mounting seat 1212; Second roller 122; Roll gap adjustment mechanism 2; Roll gap adjustment component 21; First roll gap adjustment component 21a; Second roll gap adjustment component 21b; Hydraulic drive component 211; Hydraulic cylinder 2111; Connector 2112; Wedge block 212; Inclined surface 2121; Oil groove 2122; First thrust mechanism 3; First drive component 31; First push component 32; Second thrust mechanism 4; Second drive component 41; Second push component 42; First gap H; Second gap L. Detailed Implementation

[0020] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0021] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0022] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0023] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0025] In the specification and claims of this invention, the terms "first" and "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] like Figures 1-5 As shown, according to a first aspect of the embodiments of this application, a roller pressing device 100 is provided, including a roller pressing mechanism 1 and a roller gap adjusting mechanism 2; the roller pressing mechanism 1 includes a first roller assembly 11 and a second roller assembly 12, the first roller assembly 11 and the second roller assembly 12 are arranged adjacent to each other, the first roller assembly 11 includes a first mounting member 111 and a first roller 112, the first roller 112 is rotatably connected to the first mounting member 111, the second roller assembly 12 includes a second mounting member 121 and a second roller 122, the second roller 122 and the second mounting member 111 are rotatably connected. 21 Rotary connection; The roll gap adjustment mechanism 2 includes at least one roll gap adjustment component 21, which is disposed between the first mounting member 111 and the second mounting member 121. The roll gap adjustment component 21 includes a hydraulic drive component 211 and a wedge block 212. The wedge block 212 is disposed on the first mounting member 111 or the second mounting member 121. The hydraulic drive component 211 is slidably connected to the wedge block 212 and the second mounting member 121 respectively, or the hydraulic drive component 211 is slidably connected to the wedge block 212 and the first mounting member 111 respectively.

[0029] like Figure 1 , Figure 4 and Figure 5 As shown, the roller pressing device 100 includes a roller pressing mechanism 1 and a roller gap adjusting mechanism 2.

[0030] like Figure 1, Figure 4 and Figure 5 As shown, the pressure roller mechanism 1 includes a first roller assembly 11 and a second roller assembly 12, which are arranged adjacent to each other. Specifically, the first roller assembly 11 includes a first mounting member 111 and a first roller 112, with the first roller 112 rotatably connected to the first mounting member 111, meaning that the first roller 112 can rotate about its own axis relative to the first mounting member 111. The second roller assembly 12 includes a second mounting member 121 and a second roller 122, with the second roller 122 rotatably connected to the second mounting member 121, meaning that the second roller 122... The first roller 112 is rotatable about its own axis relative to the second mounting member 121; wherein the axes of the first roller 112 and the second roller 122 are parallel, the radial direction of the first roller 112 is the same as that of the second roller 122, a roll gap is formed between the first roller 112 and the second roller 122, the first mounting member 111 and the second mounting member 121 are arranged at a distance along the radial direction of the first roller 112, that is, the first roller 112 and the second roller 122 are also arranged at a distance along the radial direction of the first roller 112, and the distance between the first roller 112 and the second roller 122 is the roll gap.

[0031] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the roll gap adjustment mechanism 2 includes at least one roll gap adjustment component 21. That is, the roll gap adjustment mechanism 2 may include one roll gap adjustment component 21, two roll gap adjustment components 21, or more roll gap adjustment components 21. The roll gap adjustment component 21 is disposed between the first mounting member 111 and the second mounting member 121. The roll gap adjustment component 21 is used to adjust the radial distance between the first mounting member 111 and the second mounting member 121 on the first roller 112, thereby adjusting the roll gap distance between the first roller 112 and the second roller 122. Specifically, the roll gap adjustment component 21 includes a hydraulic drive component 211 and a wedge block 212. If the wedge block 212 is disposed on the side of the first mounting member 111 facing the second mounting member 121, then the hydraulic drive component 211 will adjust the roll gap distance between the first roller 111 and the second roller 122. The driving end of the hydraulic drive member 211 abuts against the wedge block 212 and the side of the second mounting member 121 facing the wedge block 212, respectively. The driving end of the hydraulic drive member 211 can move relative to the wedge block 212 and the second mounting member 121. If the wedge block 212 is located on the side of the second mounting member 121 facing the first mounting member 111, the driving end of the hydraulic drive member 211 abuts against the side of the wedge block 212 and the side of the first mounting member 111 facing the wedge block 212, respectively. The driving end of the hydraulic drive member 211 can move relative to the wedge block 212 and the first mounting member 111. Both of the above embodiments can adjust the roll gap between the first roller 112 and the second roller 122 by the elastic deformation between the first mounting member 111 and the second mounting member 121.

[0032] In the roller pressing device 100 of this application, the driving force of the roller gap adjustment component 21 is directly driven by the hydraulic drive component 211. Compared with the method of using a drive screw, the hydraulic drive component 211 itself has the characteristic of outputting greater power. Therefore, when the first roller 112 and the second roller 122 are working, the hydraulic drive component 211 can output a greater thrust to the wedge block 212 and thus achieve online adjustment of the roller gap. That is, it is not necessary for the first roller 112 and the second roller 122 to ensure the adjustment of the roller gap when the pressure is released, thereby avoiding the problem of roller gap instability after pressure is released.

[0033] In one specific embodiment, the hydraulic drive component 211 includes a hydraulic cylinder 2111, the piston rod of which is slidably connected to the wedge block 212 and the second mounting component 121.

[0034] like Figure 1 and Figure 2 As shown, in another specific embodiment, the hydraulic drive component 211 includes a hydraulic cylinder 2111 and a connecting member 2112. The connecting member 2112 is located at the drive end of the hydraulic cylinder 2111 and is slidably connected to the wedge block 212 and the second mounting member 121, respectively. Specifically, the hydraulic cylinder 2111 includes a piston rod, and the connecting member 2112 is connected to the piston rod. The hydraulic cylinder 2111 can drive the piston rod to move, thereby moving the connecting member 2112. The connecting member 2112 is slidably connected to the wedge block 212 and the second mounting member 121, so the connecting member 2112 can move between the wedge block 212 and the second mounting member 121 to adjust the roll gap between the first roller 112 and the second roller 122. In this embodiment, the driving stability of the hydraulic drive component 211 can be improved by slidably connecting the connecting member 2112 to the wedge block 212 and the second mounting member 121.

[0035] The sliding connection between the connector 2112 and the wedge block 212 and the second mounting member 121 can be a sliding connection via a guide member, or the connector 2112 abuts against the wedge block 212 and the second mounting member 121, and the connector 2112 can move between the wedge block 212 and the second mounting member 121 to adjust the distance between the wedge block 212 and the second mounting member 121, that is, to adjust the gap between the first roller 112 and the second roller 122; or the connector 2112 abuts against the wedge block 212, and the connector 2112 and the second mounting member 121 are slidably connected via a guide member.

[0036] The connector 2112 can be a cube, cuboid, or cylinder; preferably, the connector 2112 is a cylinder, and the outer surface of the cylinder abuts against the wedge block 212 and the second mounting member 121. Since the outer surface of the cylinder is arc-shaped, the cylinder is in line contact with the wedge block 212 and the second mounting member 121, thereby reducing the friction between the cylinder and the wedge block 212 and the second mounting member 121.

[0037] In one alternative embodiment, the side of the wedge block 212 that contacts the hydraulic drive member 211 is an inclined surface 2121. Specifically, the inclined surface 2121 refers to the different distances between different positions of the inclined surface 2121 and the second mounting member 121 relative to the direction of movement of the driving end of the hydraulic drive member 211. Therefore, when the driving end of the hydraulic drive member 211 moves relative to the inclined surface 2121, the distance between the first mounting member 111 and the second mounting member 121 can be different, thereby adjusting the gap between the first roller 112 and the second roller 122.

[0038] like Figure 4 As shown, in an optional embodiment, along the radial direction of the first roller 112, the distance between the side of the inclined surface 2121 away from the hydraulic cylinder 2111 and the second mounting member 121 is a first indirect distance H, and the distance between the side of the inclined surface 2121 away from the hydraulic cylinder 2111 and the second mounting member 121 is a second indirect distance L, wherein the first indirect distance H is greater than the second indirect distance L; specifically, the connector 2112 is inserted between the wedge block 212 and the second mounting member 121 from the side of the inclined surface 2121 near the hydraulic cylinder 2111, wherein the first indirect distance H between the side of the inclined surface 2121 near the hydraulic cylinder 2111 and the second mounting member 121 is greater than the second indirect distance L between the side of the inclined surface 2121 away from the hydraulic cylinder 2111 and the second mounting member 121, thereby facilitating the insertion of the connector 2112 between the wedge block 212 and the second mounting member 121, and facilitating the hydraulic cylinder 2111 to drive the connector 2112 to move.

[0039] like Figure 3 As shown, in an optional embodiment, the inclined surface 2121 is provided with an oil groove 2122; wherein the oil groove 2122 is used to hold a certain amount of lubricating oil, and an oil film is coated on the inclined surface 2121, the connecting member 2112 abuts against the inclined surface 2121, and the oil film reduces the coefficient of friction between the connecting member 2112 and the inclined surface 2121.

[0040] like Figure 5As shown, in an optional embodiment, the first mounting member 111 includes a first mounting base 1111 and a second mounting base 1112, the first mounting base 1111 and the second mounting base 1112 being spaced apart along the axial direction of the first roller 112, one end of the first roller 112 being rotatably connected to the first mounting base 1111, and the other end of the second roller 122 being rotatably connected to the second mounting base 1112; the second mounting member 121 includes a third mounting base 1211 and a fourth mounting base 1212, the third mounting base 1211 and the fourth mounting base 1212 being spaced apart along the axial direction of the second roller 122, one end of the second roller 122 being rotatably connected to the third mounting base 1211, and the other end of the second roller 122 being rotatably connected to the fourth mounting base 1212; specifically, the first mounting base 1111 and the third mounting base 1211 are arranged radially adjacent to each other along the first roller 112, and the second mounting base 1112 and the fourth mounting base 1212 are arranged radially adjacent to each other along the first roller 112; Further explanation: the roll gap adjustment mechanism 2 includes two roll gap adjustment components 21, one of which is located between the first mounting base 1111 and the third mounting base 1211, and the other is located between the second mounting base 1112 and the fourth mounting base 1212. Specifically, the two roll gap adjustment components 21 are respectively labeled as the first roll gap adjustment component 21a and the second roll gap adjustment component 21b. The first roll gap adjustment component 21a is located between the first mounting base 1111 and the third mounting base 1211, and the second roll gap adjustment component 21b is located between the second mounting base 1112 and the fourth mounting base 1212. In this embodiment, by adjusting with the first roll gap adjustment component 21a and the second roll gap adjustment component 21b, the two ends of the first roller 112 and the second roller 122 can be adjusted, thereby avoiding the situation where the roll gap between the first roller 112 and the second roller 122 is different, thus improving the adjustment accuracy of the roll gap.

[0041] like Figure 5As shown, in an optional embodiment, the pressure roller mechanism 1 includes a plurality of first roller assemblies 11 and a plurality of second roller assemblies 12, the first roller assemblies 11 and the second roller assemblies 12 being arranged alternately; specifically, the pressure roller mechanism 1 includes a plurality of first roller assemblies 11 and a plurality of second roller assemblies 12, the number of first roller assemblies 11 and the number of second roller assemblies 12 can be the same or different (in different cases, the number of first roller assemblies 11 differs from the number of second roller assemblies 12 by one), the first roller assemblies 11 and the second roller assemblies 12... The sub-assemblies 12 are arranged in an alternating manner; taking two first roller assemblies 11 and three second roller assemblies 12 as an example, the order along the radial direction of the first roller 112 is: second roller assembly 12, first roller assembly 11, second roller assembly 12, first roller assembly 11 and second roller assembly 12; or, taking three first roller assemblies 11 and three second roller assemblies 12 as an example, the order is: first roller assembly 11, second roller assembly 12, first roller assembly 11, second roller assembly 12, first roller assembly 11 and second roller assembly 12; like Figure 5 As shown, the roller pressing device 100 includes multiple roller gap adjustment mechanisms 2, with each roller gap adjustment mechanism 2 provided between each of the first roller assembly 11 and the second roller assembly 12. Specifically, since the pressing roller mechanism 1 includes multiple first roller assemblies 11 and second roller assemblies 12, and the first roller assemblies 11 and second roller assemblies 12 are arranged alternately, and a roller gap adjustment mechanism 2 is provided between each of the first roller assembly 11 and the second roller assembly 12, it can be understood that the total number of first roller assemblies 11 and second roller assemblies 12 is N, and the number of roller gap adjustment mechanisms 2 is N-1. In this embodiment, in the first roller... Both component 11 and the second roller assembly 12 may be provided with a roller gap adjustment mechanism 2, but only one roller gap adjustment component 21 will be provided between adjacent first roller assembly 11 and second roller assembly 12 to adjust the gap between the first roller 112 and the second roller 122. Furthermore, depending on the roller gap adjustment mechanism 2 provided between the first roller assembly 11 and the second roller assembly 12, the gap between the first roller 112 and the second roller 122 at different positions can be made different to accommodate different powders or for thinning films. In this embodiment, the compatibility of the roller pressing device 100 can be improved.

[0042] like Figure 5As shown, in an optional embodiment, the roller pressing device 100 further includes a first thrust mechanism 3 and a second thrust mechanism 4. Along the radial direction of the first roller 112, the first thrust mechanism 3 and the second thrust mechanism 4 are respectively disposed on both sides of the pressure roller mechanism 1. Specifically, in the radial direction of the first roller 112, the first thrust mechanism 3 and the second thrust mechanism 4 are respectively located on both sides of the pressure roller mechanism 1. The first thrust mechanism 3 is used to apply a force to the pressure roller mechanism 1 that moves towards the second thrust mechanism 4, and the second thrust mechanism 4 is used to apply a force to the pressure roller mechanism 1 that moves towards the second thrust mechanism 4. 1. Apply a force toward the first thrust mechanism 3; that is, apply a certain thrust to both sides of the pressure roller mechanism 1 through the first thrust mechanism 3 and the second thrust mechanism 4 so that a certain distance is maintained between the first mounting member 111 and the second mounting member 121, so as to avoid the powder or film changing the distance of the roller gap under the squeezing and shearing force of the first roller 112 and the second roller 122 when passing under the roller gap between the first roller 112 and the second roller 122, thereby avoiding changes in the thickness and compaction of the film, so as to ensure the quality of the film.

[0043] In one specific embodiment, the first thrust mechanism 3 includes a first drive component 31 and a first push component 32. The first push component 32 abuts against the side of the first mounting member 111 or the second mounting member 121 away from the roll gap adjustment mechanism 2. The drive end of the first drive component 31 abuts against the first push component 32. The first drive component 31 can drive the first push component 32 to squeeze the pressure roller mechanism 1 in the direction of the second thrust mechanism 4.

[0044] like Figure 5 As shown, in another specific embodiment, the second thrust mechanism 4 includes a second drive component 41 and a second push component 42. The second push component 42 abuts against the side of the first mounting member 111 or the second mounting member 121 away from the roll gap adjustment mechanism 2. The drive end of the second drive component 41 abuts against the second push component 42. The second drive component 41 can drive the second push component 42 to squeeze the pressure roller mechanism 1 in the direction of the first thrust mechanism 3.

[0045] In another specific embodiment, the first thrust mechanism 3 includes a first drive assembly 31 and a first push assembly 32. The first push assembly 32 abuts against the side of the first mounting member 111 or the second mounting member 121 away from the roll gap adjustment mechanism 2. The drive end of the first drive assembly 31 abuts against the first push assembly 32. The first drive assembly 31 can drive the first push assembly 32 to press the pressure roller mechanism 1 towards the second thrust mechanism 4. The second thrust mechanism 4 includes a second drive assembly 41 and a second push assembly 42. The second push assembly 42 abuts against the side of the first mounting member 111 or the second mounting member 121 away from the roll gap adjustment mechanism 2. The drive end of the second drive assembly 31 abuts against the side of the first mounting member 111 or the second mounting member 121 away from the roll gap adjustment mechanism 2. The second pushing component 42 abuts, and the second driving component 41 can drive the second pushing component 42 to press the pressure roller mechanism 1 in the direction of the first thrust mechanism 3; taking this embodiment as an example for explanation; since the first thrust mechanism 3 and the second thrust mechanism 4 are located on both sides of the pressure roller mechanism 1; if the first thrust mechanism 3 abuts with the first mounting member 111, and the second thrust mechanism 4 also abuts with the first mounting member 111, then the first thrust mechanism 3 and the second thrust mechanism 4 abut with the first mounting members 111 of different first pressure roller assemblies respectively; if the second thrust mechanism 4 abuts with the second mounting member 121, and the second thrust mechanism 4 also abuts with the second mounting member 121, then the first thrust mechanism 3 and the second thrust mechanism 4 abut with the second mounting members 121 of different second pressure roller assemblies respectively. In this embodiment, the first thrust mechanism 3 abuts against the first mounting member 111, and the second thrust mechanism 4 abuts against the second mounting member 121, as an example, are described below. Specifically, the first thrust mechanism 3 includes a first drive assembly 31 and a first push assembly 32. The first push assembly 32 abuts against the first mounting member 111, and the drive end of the first drive assembly 31 abuts against the side of the first push assembly 32 away from the first mounting member 111. The first drive assembly 31 can drive the first push assembly 32 to move closer to the side of the second thrust mechanism 4. The second thrust mechanism 4 includes a second drive assembly 41 and a second push assembly 42. Component 42, the second push component 42 abuts against the second mounting member 121, the drive end of the second drive component 41 abuts against the side of the second push component 42 away from the second mounting member 121, the second drive component 41 can drive the second push component 42 to move closer to the side of the first thrust mechanism 3; in this embodiment, by abutting against the first mounting member 111 and the second mounting member 121, the problem of jamming of the first roller 112 and the second roller 122 can be avoided, and the clearance between the first roller 112 and the first mounting member 111, and between the second roller 122 and the second mounting member 121 can also be eliminated.

[0046] In an embodiment where the first mounting component 111 includes a first mounting base 1111 and a second mounting base 1112, and the second mounting component 121 includes a third mounting base 1211 and a fourth mounting base 1212, the first pushing component 32 abuts against the first mounting base 1111 and the second mounting base 1112; the second pushing component 42 abuts against the third mounting base 1211 and the fourth mounting base 1212.

[0047] According to a second aspect of the embodiments of this application, a coating apparatus is provided, including the roller pressing device 100 described above.

[0048] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A roller pressing device, characterized in that, include: A pressure roller mechanism, comprising a first roller assembly and a second roller assembly, wherein the first roller assembly and the second roller assembly are arranged adjacent to each other, the first roller assembly includes a first mounting member and a first roller, the first roller being rotatably connected to the first mounting member, and the second roller assembly includes a second mounting member and a second roller, the second roller being rotatably connected to the second mounting member; A roll gap adjustment mechanism includes at least one roll gap adjustment component, which is disposed between a first mounting member and a second mounting member. The roll gap adjustment component includes a hydraulic drive and a wedge block. The wedge block is disposed on the first mounting member or the second mounting member. The hydraulic drive is slidably connected to the wedge block and the second mounting member respectively, or the hydraulic drive is slidably connected to the wedge block and the first mounting member respectively.

2. The roller pressing device according to claim 1, characterized in that, The hydraulic drive component includes a hydraulic cylinder and a connecting component. The connecting component is located at the drive end of the hydraulic cylinder and is slidably connected to the wedge block and the second mounting component, respectively.

3. The roller pressing device according to claim 2, characterized in that, The side of the wedge block that contacts the hydraulic drive component is an inclined surface.

4. The roller pressing device according to claim 3, characterized in that, Along the radial direction of the first roller, the distance between the side of the inclined surface away from the hydraulic cylinder and the second mounting component is the first distance, and the distance between the side of the inclined surface away from the hydraulic cylinder and the second mounting component is the second distance, wherein the first distance is greater than the second distance.

5. The roller pressing device according to claim 3, characterized in that, The inclined surface has an oil groove.

6. The roller pressing device according to claim 1, characterized in that, The first mounting component includes a first mounting base and a second mounting base, the first mounting base and the second mounting base are spaced apart along the axial direction of the first roller, one end of the first roller is rotatably connected to the first mounting base, and the other end of the second roller is rotatably connected to the second mounting base; The second mounting component includes a third mounting base and a fourth mounting base, which are spaced apart along the axial direction of the second roller. One end of the second roller is rotatably connected to the third mounting base, and the other end of the second roller is rotatably connected to the fourth mounting base. The roll gap adjustment mechanism includes two roll gap adjustment components, one of which is located between the first mounting base and the third mounting base, and the other of which is located between the second mounting base and the fourth mounting base.

7. The roller pressing device according to claim 1, characterized in that, The pressure roller mechanism includes a plurality of first roller assemblies and a plurality of second roller assemblies, wherein the first roller assemblies and the second roller assemblies are arranged alternately. The roller pressing device includes multiple roller gap adjustment mechanisms, and each of the first roller assembly and the second roller assembly is provided with a roller gap adjustment mechanism.

8. The roller pressing device according to claim 1, characterized in that, The roller pressing device further includes a first thrust mechanism and a second thrust mechanism, which are respectively located on both sides of the pressing roller mechanism along the radial direction of the first roller.

9. The roller pressing device according to claim 8, characterized in that, The first thrust mechanism includes a first drive assembly and a first push assembly. The first push assembly abuts against the side of the first mounting member or the second mounting member away from the roll gap adjustment mechanism. The drive end of the first drive assembly abuts against the first push assembly. The first drive assembly is capable of driving the first push assembly to press the pressure roller mechanism in the direction of the second thrust mechanism; and / or The second thrust mechanism includes a second drive component and a second push component. The second push component abuts against the first mounting member or the side of the second mounting member away from the roll gap adjustment mechanism. The drive end of the second drive component abuts against the second push component. The second drive component can drive the second push component to squeeze the pressure roller mechanism in the direction of the first thrust mechanism.

10. A coating apparatus, characterized in that, Includes the roller pressing device as described in any one of claims 1-9.

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