Rolling mechanism and coating apparatus

Abstract

The utility model discloses a kind of roller mechanism and coating equipment, comprising: first roller assembly, the first roller assembly includes first roller;Second roller assembly, the second roller assembly includes second roller, the first roller and the second roller are adjacent arrangement along the radial direction of the first roller;At least one detection component, the detection component is located between the first roller and the second roller, the detection component includes first detection piece and second detection piece, the first detection piece is close to the first roller, and the second detection piece is close to the second roller.The technical scheme provided in the application can ensure the detection accuracy of the roll gap.

Description

Technical Field

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

[0002] In the rolling process of dry coating equipment, the distance between the mounting bases of the two rollers is usually measured by a sensor to obtain the gap between the two rollers. However, due to the installation error of the mounting bases and the thermal expansion of the rollers, the expansion of the rollers can not be accurately synchronized with the roller gap sensor, which will affect the measurement accuracy of the roller gap. Utility Model Content

[0003] The purpose of this application is to provide a roller pressing mechanism and a coating equipment.

[0004] According to a first aspect of the embodiments of this application, a rolling mechanism is provided, comprising:

[0005] A first pressure roller assembly, the first pressure roller assembly including a first roller;

[0006] The second pressure roller assembly includes a second roller, and the first roller and the second roller are arranged adjacent to each other in the radial direction of the first roller;

[0007] At least one detection component is located between the first roller and the second roller, the detection component including a first detection element and a second detection element, the first detection element being close to the first roller and the second detection element being close to the second roller.

[0008] Optionally, the first roller includes a first body and a first connecting portion, the first connecting portion being disposed at the end of the first body;

[0009] The second roller includes a second body and a second connecting portion. The second connecting portion is disposed at the end of the second body. The first body and the first roller are arranged adjacent to each other in the radial direction. The first connecting portion and the second connecting portion are arranged adjacent to each other.

[0010] The first detection element is close to the first connecting part, and the second detection element is close to the second connecting part.

[0011] Optionally, the first connecting part includes a first connecting shaft, which is located at one end of the first body along its axial direction. The first connecting shaft includes a first shaft segment and a second shaft segment. The outer diameter of the first shaft segment is larger than the outer diameter of the second shaft segment, and the first detection element is close to the outer surface of the second shaft segment.

[0012] Optionally, the second connecting part includes a second connecting shaft, which is located at one end of the axial direction of the second body. The second connecting shaft includes a third shaft segment and a fourth shaft segment, wherein the outer diameter of the third shaft segment is larger than the outer diameter of the fourth shaft segment, and the second detection element is close to the outer surface of the fourth shaft segment.

[0013] Optionally, the first connecting part includes a first connecting shaft, which is disposed at one end of the first body along the axial direction. The first connecting shaft includes a first shaft segment and a second shaft segment, and the outer diameter of the first shaft segment is larger than the outer diameter of the second shaft segment.

[0014] The second connecting part includes a second connecting shaft, which is located at one end of the axial direction of the second body. The second connecting shaft includes a third shaft segment and a fourth shaft segment, wherein the outer diameter of the third shaft segment is larger than the outer diameter of the fourth shaft segment.

[0015] The first shaft segment is arranged opposite to the third shaft segment, and the second shaft segment is arranged opposite to the fourth shaft segment. The first detection element is close to the outer surface of the second shaft segment, and the second detection element is close to the outer surface of the fourth shaft segment.

[0016] Optionally, the first pressure roller assembly further includes a first mounting base, and the first connecting portion is rotatably connected to the first mounting base;

[0017] The second pressure roller assembly further includes a second mounting base, the second connecting portion is rotatably connected to the second mounting base, and the first mounting base is arranged adjacent to the second mounting base;

[0018] The detection assembly further includes a mounting bracket, wherein the first detection element and the second detection element are respectively disposed on both sides of the mounting bracket along the radial direction of the first roller, and the mounting bracket is disposed on the first mounting seat and / or the second mounting seat.

[0019] Optionally, the detection component is located between the first roller and the first mounting base along the axial direction of the first roller.

[0020] Optionally, the rolling mechanism further includes a mounting assembly, wherein both the first roller assembly and the second roller assembly are disposed on the mounting assembly;

[0021] The detection assembly further includes a mounting bracket, with the first detection element and the second detection element respectively disposed on both sides of the mounting bracket along the radial direction of the first roller, and the mounting bracket disposed on the mounting assembly.

[0022] Optionally, the first connecting part includes two first connecting shafts, which are respectively located at both ends of the axial direction of the first body;

[0023] The second connecting part includes two second connecting shafts, which are respectively located at both ends of the axial direction of the second body;

[0024] The rolling mechanism includes two detection components, which are arranged at intervals along the axial direction of the first roller and are respectively located between the corresponding first connecting shaft and the second connecting shaft.

[0025] According to a second aspect of the embodiments of this application, a coating apparatus is provided, including the roller pressing mechanism described above.

[0026] One technical advantage of this application embodiment is that by detecting the distance between the first detection element and the first roller, and the distance between the second detection element and the second roller, the gap between the first roller and the second roller can be detected. Even if the first roller and the second roller are heated and expanded, it will not affect the gap between the roller detected by the first detection element and the second detection element, thereby ensuring the detection accuracy of the gap.

[0027] 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

[0028] 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.

[0029] Figure 1 This is a schematic diagram of the roller pressing mechanism in the embodiments of this application;

[0030] Figure 2 for Figure 1 A magnified view of point A in the image;

[0031] Figure 3 This is a schematic diagram of the roller pressing mechanism in the embodiments of this application;

[0032] Figure 4 This is a schematic diagram of the roller pressing mechanism in the embodiments of this application.

[0033] Explanation of reference numerals in the attached drawings: Roller pressing mechanism 100; First roller assembly 1; First roller 11; First body 111; First connecting shaft 112; First shaft segment 1121; Second shaft segment 1122; First mounting seat 12; First bearing seat 121; Second roller assembly 2; Second roller 21; Second body 211; Second connecting shaft 212; Third shaft segment 2121; Fourth shaft segment 2122; Second mounting seat 22; Third bearing seat 221; Detection assembly 3; First detection element 31; Second detection element 32; Mounting bracket 33; First mounting surface 331; Second mounting surface 332. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] In the description of this invention, it should be understood that if the terms "axial", "radial", etc., are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention and simplifying the description, and do not 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.

[0041] 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.

[0042] like Figures 1-4 As shown, according to a first aspect of the present application, a roller pressing mechanism 100 is provided, including a first roller assembly 1, a second roller assembly 2, and at least one detection assembly 3. The first roller assembly 1 includes a first roller 11; the second roller assembly 2 includes a second roller 21, and the first roller 11 and the second roller 21 are arranged adjacent to each other radially along the first roller 11; the detection assembly 3 is located between the first roller 11 and the second roller 21, and the detection assembly 3 includes a first detection element 31 and a second detection element 32, the first detection element 31 being close to the first roller 11 and the second detection element 32 being close to the second roller 21.

[0043] like Figure 1 As shown, the roller pressing mechanism 100 includes a first roller assembly 1, a second roller assembly 2, and at least one detection assembly 3; the first roller assembly 1 includes a first roller 11; the second roller assembly 2 includes a second roller 21, the first roller 11 and the second roller 21 are arranged adjacent to each other along the radial direction of the first roller 11, the axis of the first roller 11 is parallel to the axis of the second roller 21, and the radial direction of the first roller 11 is the same as the radial direction of the second roller 21.

[0044] To further explain, the roller pressing mechanism 100 includes at least one detection component 3. It can be understood that the roller pressing mechanism 100 may include one detection component 3, two detection components 3, three detection components 3, or more detection components 3.

[0045] Specifically, such as Figure 2 and Figure 3 As shown, the detection component 3 is disposed between the first roller 11 and the second roller 21. It can be understood that the detection component 3 is located radially between the first roller 11 and the second roller 21. The detection component 3 includes a first detection element 31 and a second detection element 32. The first detection element 31 is closer to the first roller 11 than the second detection element 32, and the second detection element 32 is closer to the second roller 21 than the first detection element 31. The first detection element 31 is used to detect the distance between the first detection element 31 and the first roller 11, and the second detection element 32 is used to detect the distance between the second detection element 32 and the second roller 21.

[0046] The rolling mechanism 100 provided in this application has a gap between the first roller 11 and the second roller 21. The gap between the first roller 11 and the second roller 21 is detected by the first detection element 31 and the second detection element 32. This allows the detection of the gap between the first roller 11 and the second roller 21, which is the gap between the first roller 11 and the second roller 21. In this application, the first detection element 31 and the second detection element 32 are used to detect the gap between the first roller 11 and the second roller 21. Even if the first roller 11 and the second roller 21 are thermally expanded, it will not affect the gap detected by the first detection element 31 and the second detection element 32, thereby ensuring the detection accuracy of the gap.

[0047] The first detection element 31 can be a laser rangefinder, an inductive rangefinder, a fiber optic rangefinder, or an ultrasonic distance sensor; the second detection element 32 can also be a laser rangefinder, an inductive rangefinder, a fiber optic rangefinder, or an ultrasonic distance sensor. The rangefinders used in the first and second detection elements 31 and 32 are merely illustrative examples and are not limited to the aforementioned rangefinders.

[0048] like Figure 1 As shown, in an optional embodiment, the first roller 11 includes a first body 111 and a first connecting portion, the first connecting portion being disposed at the end of the first body 111; specifically, the first body 111 is used for rolling film or powder, the first connecting portion is disposed at the end of the first body 111, and the first connecting portion is used to connect with the first mounting base 12 to mount the first roller 11.

[0049] To further explain, the second roller 21 includes a second body 211 and a second connecting portion, the second connecting portion being disposed at the end of the second body 211; specifically, the second body 211 is used for rolling film or powder, the second connecting portion is disposed at the end of the second body 211, and the second connecting portion is used to connect with the second mounting base 22 to mount the second roller 21.

[0050] To further explain, the first body 111 is arranged adjacent to the first roller 11 radially, and the first connecting portion is arranged adjacent to the second connecting portion. The distance between the first body 111 and the second body 211 is the roll gap between the first roller 11 and the second roller 21. The first connecting portion and the second connecting portion are arranged adjacent to each other radially along the first roller 11. The first detection element 31 is close to the first connecting portion, and the second detection element 32 is close to the second connecting portion. The first detection element 31 is used to detect the distance between the first detection element 31 and the first connecting portion, and the second detection element 32 is used to detect the distance between the second detection element 32 and the second connecting portion. In this embodiment, the detection component 3 is placed between the first connecting portion and the second connecting portion, which can avoid affecting the first body 111 and the second body 211 in rolling the film or powder.

[0051] The first body 111 and the first connecting part are integral structures, and the second body 211 and the second connecting part are integral structures, so as not to affect the detection accuracy of the roll gap between the first body 111 and the second body 211.

[0052] In one specific embodiment, the first connecting portion includes a first connecting shaft 112, which is disposed at one axial end of the first body 111. The first connecting shaft 112 includes a first shaft segment 1121 and a second shaft segment 1122. The outer diameter of the first shaft segment 1121 is larger than the outer diameter of the second shaft segment 1122. The first detection element 31 is close to the outer surface of the second shaft segment 1122. Specifically, the first connecting shaft 112 is disposed at one axial end of the first body 111, and the axis of the first connecting shaft 112 coincides with the axis of the first body 111. The first connecting shaft 112 includes a first... Shaft segment 1121 and second shaft segment 1122, the outer diameter of the first shaft segment 1121 is larger than the outer diameter of the second shaft segment 1122, the first detection element 31 is close to the outer surface of the second shaft segment 1122, that is, the first detection element 31 is located between the second shaft segment 1122 and the second connecting part. Since the outer diameter of the second shaft segment 1122 is smaller than the outer diameter of the first shaft segment 1121, the distance between the first connecting part and the second connecting part is increased. In this embodiment, the first detection element 31 is located between the second shaft segment 1122 and the second connecting part, and when the first roller 11 and the second roller 21 rotate, they can avoid collision with the detection component 3.

[0053] In another specific embodiment, the second connecting portion includes a second connecting shaft 212, which is disposed at one axial end of the second body 211. The second connecting shaft 212 includes a third shaft segment 2121 and a fourth shaft segment 2122, wherein the outer diameter of the third shaft segment 2121 is larger than the outer diameter of the fourth shaft segment 2122, and the second detection element 32 is close to the outer surface of the fourth shaft segment 2122. Specifically, the second connecting shaft 212 is disposed at one axial end of the second body 211, and the axis of the second connecting shaft 212 coincides with the axis of the second body 211. The second connecting shaft 212 includes a third shaft segment 2121 and a fourth shaft segment 2122. Shaft segment 2121 and fourth shaft segment 2122, the outer diameter of the third shaft segment 2121 is larger than the outer diameter of the fourth shaft segment 2122, the second detection element 32 is close to the outer surface of the fourth shaft segment 2122, that is, the second detection element 32 is located between the fourth shaft segment 2122 and the first connecting part. Since the outer diameter of the fourth shaft segment 2122 is smaller than the outer diameter of the third shaft segment 2121, the distance between the second connecting part and the first connecting part is increased. In this embodiment, the second detection element 32 is located between the fourth shaft segment 2122 and the first connecting part, and when the first roller 11 and the second roller 21 rotate, it can avoid collision with the detection component 3.

[0054] like Figure 2 As shown, in another specific embodiment, the first connecting portion includes a first connecting shaft 112, which is disposed at one end of the axial direction of the first body 111. The first connecting shaft 112 includes a first shaft segment 1121 and a second shaft segment 1122, and the outer diameter of the first shaft segment 1121 is larger than the outer diameter of the second shaft segment 1122. Specifically, the first connecting shaft 112 is disposed at one end of the axial direction of the first body 111, and the axis of the first connecting shaft 112 coincides with the axis of the first body 111. The first connecting shaft 112 includes a first shaft segment 1121 and a second shaft segment 1122, and the outer diameter of the first shaft segment 1121 is larger than the outer diameter of the second shaft segment 1122.

[0055] Further explanation: the second connecting part includes a second connecting shaft 212, which is disposed at one end of the axial direction of the second body 211. The second connecting shaft 212 includes a third shaft segment 2121 and a fourth shaft segment 2122, wherein the outer diameter of the third shaft segment 2121 is larger than the outer diameter of the fourth shaft segment 2122. Specifically, the second connecting shaft 212 is disposed at one end of the axial direction of the second body 211, and the axis of the second connecting shaft 212 coincides with the axis of the second body 211. The second connecting shaft 212 includes a third shaft segment 2121 and a fourth shaft segment 2122, wherein the outer diameter of the third shaft segment 2121 is larger than the outer diameter of the fourth shaft segment 2122.

[0056] To further explain, the first shaft segment 1121 is arranged opposite to the third shaft segment 2121, and the second shaft segment 1122 is arranged opposite to the fourth shaft segment 2122. The first detection element 31 is close to the outer surface of the second shaft segment 1122, and the second detection element 32 is close to the outer surface of the fourth shaft segment 2122. Specifically, the first detection element 31 and the second detection element 32 are located between the second shaft segment 1122 and the fourth shaft segment 2122. Since the outer diameter of the second shaft segment 1122 is smaller than the outer diameter of the first shaft segment 1121, and the outer diameter of the fourth shaft segment 2122 is smaller than the outer diameter of the third shaft segment 2121, this means that the outer diameters of the second shaft segment 1122 and the fourth shaft segment 2122 are increased. The spacing between the four shaft segments 2122 is such that, without causing collisions, the outer diameters of the second shaft segment 1122 and the first shaft segment 1121, as well as the outer diameters of the fourth shaft segment 2122 and the second shaft segment 1122, are relatively close, thereby improving the structural strength of the first connecting shaft 112 and the second connecting shaft 212. In this embodiment, the first detection element 31 is located between the second shaft segment 1122 and the fourth shaft segment 2122, and when the first roller 11 and the second roller 21 rotate, it can avoid collisions with the detection component 3. Furthermore, the first roller 11 and the second roller 21 can be configured with the same structure, thereby reducing processing costs.

[0057] like Figure 1 and Figure 4 As shown, in an optional embodiment, the first pressure roller assembly 1 further includes a first mounting base 12, and the first connecting portion is rotatably connected to the first mounting base 12; the first mounting base 12 provides support for the first roller 11.

[0058] To further explain, the second pressure roller assembly 2 also includes a second mounting base 22, the second connecting part is rotatably connected to the second mounting base 22, the first mounting base 12 and the second mounting base 22 are arranged adjacent to each other, which can be understood as the first mounting base 12 and the second mounting base 22 being arranged adjacent to each other along the radial direction of the first roller 11; the second mounting base 22 provides support for the second roller 21.

[0059] Further, the detection component 3 also includes a mounting bracket 33. The first detection element 31 and the second detection element 32 are respectively disposed on both sides of the mounting bracket 33 along the radial direction of the first roller 11. The mounting bracket 33 is disposed on the first mounting seat 12 and / or the second mounting seat 22. Specifically, the mounting bracket 33 includes a first mounting surface 331 and a second mounting surface 332. The first mounting surface 331 and the second mounting surface 332 are arranged along the radial direction of the first roller 11. The first mounting surface 331 faces the first connecting portion, and the second mounting surface 332 faces the second connecting portion. The first detection element 31 is disposed on the first mounting surface 331, and the second detection element 32 is disposed on the second mounting surface 332. The mounting bracket 33 provides mounting support for the first detection element 31 and the second detection element 32 to ensure the installation stability between the first detection element 31 and the second detection element 32, and to ensure the detection accuracy of the first detection element 31 and the second detection element 32.

[0060] To further explain, the mounting bracket 33 can be disposed on the first mounting base 12, or on the second mounting base 22, or on both the first mounting base 12 and the second mounting base 22. In this embodiment, when the position of the first mounting base 12 and the second mounting base 22 is adjusted to adjust the gap between the first roller 11 and the second roller 21, the detection component 3 will move accordingly to avoid collision between the detection component 3 and the first roller 11 or the second roller 21, thereby improving its safety.

[0061] like Figure 1 As shown, in an optional embodiment, the detection component 3 is located between the first roller 11 and the first mounting base 12 along the axial direction of the first roller 11. Specifically, along the axis of the first roller 11, the detection component 3 is located between the first roller 11 and the first mounting base 12. It can be understood that the detection component 3 is closer to the first body 111 and the second body 211. Therefore, the accuracy of the roll gap between the first roller 11 and the second roller 21 detected by the detection component 3 is high, thereby improving the quality of film formation.

[0062] In an optional embodiment, the rolling mechanism 100 further includes a mounting assembly, wherein the first roller 11 assembly and the second roller 21 assembly are both disposed on the mounting assembly; specifically, the first roller 11 assembly and the second roller 21 assembly are both disposed on the mounting assembly, that is, the first mounting seat 12 and the second mounting seat 22 are disposed on the mounting assembly, and the mounting assembly provides mounting support for the first roller 11 assembly and the second roller 21 assembly.

[0063] Further, the detection assembly 3 also includes a mounting bracket 33. The first detection element 31 and the second detection element 32 are respectively disposed on both sides of the mounting bracket 33 along the radial direction of the first roller 11. Specifically, the mounting bracket 33 includes a first mounting surface 331 and a second mounting surface 332, which are arranged radially along the first roller 11. The first mounting surface 331 faces the first connecting portion, and the second mounting surface 332 faces the second connecting portion. The first detection element 31 is disposed on the first mounting surface 331, and the second detection element 32 is disposed on the second mounting surface 332. The mounting bracket 33 serves as the first detection... The first detection component 31 and the second detection component 32 provide installation support to ensure the installation stability between the first detection component 31 and the second detection component 32, thereby ensuring the detection accuracy of the first detection component 31 and the second detection component 32; the mounting bracket 33 is disposed on the mounting assembly, and the mounting assembly provides support for the detection component 3; in this embodiment, the detection component 3 is disposed on the mounting assembly, so even if the position of the first mounting seat 12 and the second mounting seat 22 is adjusted to adjust the gap between the first roller 11 and the second roller 21, the position of the detection component 3 will not change, thereby ensuring the position of the detection component 3 and improving the detection accuracy.

[0064] like Figure 1 As shown, in an optional embodiment, the first connecting part includes two first connecting shafts 112, which are respectively located at both ends of the axial direction of the first body 111. That is, the first connecting shafts 112 are respectively provided at both ends of the axial direction of the first body 111. The first mounting base 12 includes a first bearing seat 121 and a second bearing seat (not shown in the figure) spaced apart along the axial direction of the first body 111. The first body 111 is located between the first bearing seat 121 and the second bearing seat, and the two first connecting shafts 112 are rotatably connected to the first bearing seat 121 and the second bearing seat, respectively.

[0065] To further explain, the second connecting part includes two second connecting shafts 212, which are respectively located at both ends of the axial direction of the second body 211; that is, the second connecting shafts 212 are respectively provided at both ends of the axial direction of the second body 211; the second mounting base 22 includes a third bearing seat 221 and a fourth bearing seat (not shown in the figure) spaced apart along the axial direction of the second body 211, the second body 211 is located between the third bearing seat 221 and the fourth bearing seat, and the two second connecting shafts 212 are rotatably connected to the third bearing seat 221 and the fourth bearing seat respectively.

[0066] Further explanation: the rolling mechanism 100 includes two detection components 3, which are arranged at intervals along the axial direction of the first roller 11. The two detection components 3 are respectively located between the corresponding first connecting shaft 112 and the second connecting shaft 212. Specifically, the two first connecting shafts 112 are located at both ends of the axial direction of the first body 111, and the two second connecting shafts 212 are located at both ends of the axial direction of the second body 211. Along the axial direction of the first roller 11, the two detection components 3 are located on both sides of the first body 111. Therefore, one detection component 3 is located between the corresponding first connecting shaft 112 and the second connecting shaft 212. The two detection components 3 are located at both ends of the first body 111 and the second body 211 to detect the gap between the first roller 11 and the second roller 21, thereby providing detection accuracy.

[0067] According to a second aspect of the embodiments of this application, a coating apparatus is provided, including the roller pressing mechanism 100 described above.

[0068] 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 mechanism, characterized in that, include: A first pressure roller assembly, the first pressure roller assembly including a first roller; The second pressure roller assembly includes a second roller, and the first roller and the second roller are arranged adjacent to each other in the radial direction of the first roller; At least one detection component is located between the first roller and the second roller, the detection component including a first detection element and a second detection element, the first detection element being close to the first roller and the second detection element being close to the second roller.

2. The roller pressing mechanism according to claim 1, characterized in that, The first roller includes a first body and a first connecting portion, the first connecting portion being disposed at the end of the first body; The second roller includes a second body and a second connecting portion. The second connecting portion is disposed at the end of the second body. The first body and the first roller are arranged adjacent to each other in the radial direction. The first connecting portion and the second connecting portion are arranged adjacent to each other. The first detection element is close to the first connecting part, and the second detection element is close to the second connecting part.

3. The roller pressing mechanism according to claim 2, characterized in that, The first connecting part includes a first connecting shaft, which is located at one end of the first body along its axial direction. The first connecting shaft includes a first shaft segment and a second shaft segment. The outer diameter of the first shaft segment is larger than the outer diameter of the second shaft segment, and the first detection element is close to the outer surface of the second shaft segment.

4. The roller pressing mechanism according to claim 2, characterized in that, The second connecting part includes a second connecting shaft, which is located at one end of the axial direction of the second body. The second connecting shaft includes a third shaft segment and a fourth shaft segment. The outer diameter of the third shaft segment is larger than the outer diameter of the fourth shaft segment, and the second detection element is close to the outer surface of the fourth shaft segment.

5. The roller pressing mechanism according to claim 2, characterized in that, The first connecting part includes a first connecting shaft, which is disposed at one end of the first body along the axial direction. The first connecting shaft includes a first shaft segment and a second shaft segment, and the outer diameter of the first shaft segment is larger than the outer diameter of the second shaft segment. The second connecting part includes a second connecting shaft, which is located at one end of the axial direction of the second body. The second connecting shaft includes a third shaft segment and a fourth shaft segment, wherein the outer diameter of the third shaft segment is larger than the outer diameter of the fourth shaft segment. The first shaft segment is arranged opposite to the third shaft segment, and the second shaft segment is arranged opposite to the fourth shaft segment. The first detection element is close to the outer surface of the second shaft segment, and the second detection element is close to the outer surface of the fourth shaft segment.

6. The roller pressing mechanism according to claim 2, characterized in that, The first pressure roller assembly further includes a first mounting base, and the first connecting portion is rotatably connected to the first mounting base; The second pressure roller assembly further includes a second mounting base, the second connecting portion is rotatably connected to the second mounting base, and the first mounting base is arranged adjacent to the second mounting base; The detection assembly further includes a mounting bracket, wherein the first detection element and the second detection element are respectively disposed on both sides of the mounting bracket along the radial direction of the first roller, and the mounting bracket is disposed on the first mounting seat and / or the second mounting seat.

7. The roller pressing mechanism according to claim 6, characterized in that, The detection component is located between the first roller and the first mounting base along the axial direction of the first roller.

8. The roller pressing mechanism according to claim 1, characterized in that, The rolling mechanism further includes a mounting assembly, wherein both the first roller assembly and the second roller assembly are disposed on the mounting assembly; The detection assembly further includes a mounting bracket, with the first detection element and the second detection element respectively disposed on both sides of the mounting bracket along the radial direction of the first roller, and the mounting bracket disposed on the mounting assembly.

9. The roller pressing mechanism according to claim 2, characterized in that, The first connecting part includes two first connecting shafts, which are respectively located at both ends of the axial direction of the first body; The second connecting part includes two second connecting shafts, which are respectively located at both ends of the axial direction of the second body; The rolling mechanism includes two detection components, which are arranged at intervals along the axial direction of the first roller and are respectively located between the corresponding first connecting shaft and the second connecting shaft.

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

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