A press roller mechanism and a coating apparatus

Abstract

The utility model discloses a kind of press roller mechanism and coating equipment, including roll shaft, the both ends of roll shaft are respectively equipped with mounting structure;The both ends of roll shaft are connected with the first installation section and the second installation section;The mounting structure includes first bearing seat, first bearing assembly, second bearing seat, second bearing assembly and tight component, the first installation section is located in the inside of the first bearing seat by the first bearing assembly, the first bearing seat is opened with through-hole, the through-hole is communicated with the inside of the first bearing seat, the second bearing seat is located in the inside of the first bearing seat, the second installation section is connected with the second bearing seat by the second bearing assembly, the tight component is located in the through-hole and the second bearing seat abuts to each other.The technical scheme provided in the application can improve the stability and reliability of the first bearing assembly and the second bearing assembly by the mounting structure.

Description

Technical Field

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

[0002] Among the process parameters that affect film quality in dry coating, the control of the gap between the two rollers plays a crucial role, and it shows a significant positive correlation with the uniformity of film thickness.

[0003] In related technologies, during the dry coating and film formation process on two rollers, the radial clearance of the bearings in the roller mounting structure can fluctuate. This fluctuation directly causes short-term fluctuations in the roller gap measurement instrument. These minute clearance changes alter the relative positions of the rollers, affecting the accuracy of the roller gap. More complexly, the amount of radial clearance fluctuation varies depending on the powder material. For powders with good flowability and small particle size, the impact of radial clearance fluctuation is more pronounced, easily leading to uneven powder distribution. For materials with larger particles and higher viscosity, unstable coating thickness due to changes in radial clearance is unavoidable. This uncertainty makes it difficult for some materials to maintain stability during film formation, ultimately negatively impacting the film formation effect. This results in locally excessively thick or thin films, reduced surface smoothness and uniformity, and even defects such as holes and cracks, severely affecting film quality. Utility Model Content

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

[0005] According to a first aspect of the embodiments of this application, a pressure roller mechanism is provided, including a roller shaft, with mounting structures respectively installed at both ends of the roller shaft; Both ends of the roller shaft include a first mounting section and a second mounting section connected together; The mounting structure includes a first bearing housing, a first bearing assembly, a second bearing housing, a second bearing assembly, and a clamping assembly. The first mounting section is disposed inside the first bearing housing via the first bearing assembly. The first bearing housing has a through hole that communicates with the interior of the first bearing housing. The second bearing housing is disposed inside the handle of the first bearing housing. The second mounting section is connected to the second bearing housing via the second bearing assembly. The clamping assembly passes through the through hole and abuts against the second bearing housing.

[0006] Optionally, there is a gap between the second bearing housing and the first bearing housing.

[0007] Optionally, both ends of the roller shaft further include a third mounting section, which is connected to the second mounting section, and the second mounting section is located between the first mounting section and the third mounting section; The mounting structure further includes a third bearing assembly located in the third mounting section, the second bearing housing located between the first bearing assembly and the third bearing assembly, and the third bearing assembly abutting against a portion of the axial end of the second bearing assembly.

[0008] Optionally, the third bearing assembly includes a first bearing and a first spacer, the outer ring of the first bearing is connected to the first bearing housing, the inner ring of the first bearing is connected to the first spacer, the third mounting section is suspended from the first spacer, and the axial end of the first spacer abuts against the outer ring of the second bearing assembly.

[0009] Optionally, the outer diameter of the first mounting section is larger than the outer diameter of the second mounting section; The first bearing assembly includes a second bearing, the outer ring of which is connected to the first bearing housing, and the inner ring of which is connected to the first mounting section.

[0010] Optionally, the outer diameter of the first mounting section is the same as the outer diameter of the second mounting section; The first bearing assembly includes a third bearing and a second spacer. The outer ring of the third bearing is disposed in a third bearing housing, and the second spacer is disposed in the inner ring of the third bearing. The first mounting section is connected to the second spacer.

[0011] Optionally, the second bearing assembly includes a fourth bearing and a fifth bearing, the fourth bearing and the fifth bearing being disposed adjacent to each other along the axial direction of the roller shaft.

[0012] Optionally, the clamping assembly includes a first clamping member and a second clamping member, wherein the first clamping member abuts against the second bearing seat at the position of the fourth bearing, and the second clamping member abuts against the second bearing seat at the position of the fifth bearing.

[0013] Optionally, the mounting structure further includes a locking assembly located in the third mounting section and abutting against the axial end of the second bearing assembly.

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

[0015] One technical advantage of this application embodiment is that, through the set installation structure, the stability and reliability of the clearance between the first bearing assembly and the second bearing assembly can be improved, thereby avoiding the problem of unstable coating thickness caused by roller floating due to clearance changes.

[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 cross-sectional view of the pressure roller mechanism in an embodiment of this application; Figure 2 This is a cross-sectional view of the installation structure in an embodiment of this application; Figure 3 This is a schematic diagram of the roller structure in an embodiment of this application.

[0019] Explanation of reference numerals in the attached drawings: 100 pressure roller mechanism; 1 roller shaft; 11 body; 12a first connecting shaft; 12b second connecting shaft; 121 first mounting section; 122 second mounting section; 123 third mounting section; 124 platform; 2 mounting structure; 21 first bearing seat; 211 first mounting hole; 212 through hole; 22 first bearing assembly; 221 second bearing; 23 second bearing seat; 231 second mounting hole; 24 second bearing assembly; 241 fourth bearing; 242 fifth bearing; 25 third bearing assembly; 251 first bearing; 252 first spacer; 26 locking assembly; 27 tightening assembly; 271 first tightening member; 272 second tightening member. 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] like Figures 1-3 As shown, according to a first aspect of the embodiments of this application, a pressure roller mechanism 100 is provided, including a roller shaft 1, wherein mounting structures 2 are respectively installed at both ends of the roller shaft 1; Both ends of the roller 1 include a first mounting section 121 and a second mounting section 122 connected to each other; The mounting structure 2 includes a first bearing housing 21, a first bearing assembly 22, a second bearing housing 23, a second bearing assembly 24, and a clamping assembly 27. The first mounting section 121 is disposed inside the first bearing housing 21 via the first bearing assembly 22. The first bearing housing 21 has a through hole 212 that communicates with the interior of the first bearing housing 21. The second bearing housing 23 is disposed inside the first bearing housing 21. The second mounting section 122 is connected to the second bearing housing 23 via the second bearing assembly 24. The clamping assembly 27 passes through the through hole 212 and abuts against the second bearing housing 23.

[0026] like Figure 1 As shown, the pressure roller mechanism 100 includes a roller shaft 1 and two mounting structures 2. The two mounting structures 2 are respectively located at both ends of the roller shaft 1 in the axial direction. The roller shaft 1 and the mounting structures 2 are rotatably connected, and the roller shaft 1 can rotate around its own axis.

[0027] like Figure 3 As shown, the roller 1 includes a body 11, a first connecting shaft 12a, and a second connecting shaft 12b. The first connecting shaft 12a and the second connecting shaft 12b are respectively located at both ends of the axial direction of the body 11. In the coating equipment, the body 11 is used to roll and press powder. The first connecting shaft 12a is connected to one of the mounting structures 2, and the second connecting shaft 12b is connected to the other mounting structure 2. The structures of the first connecting shaft 12a and the second connecting shaft 12b are the same. Both the first connecting shaft 12a and the second connecting shaft 12b include a first mounting section 121 and a second mounting section 122. The first mounting section 121 is farther away from the body 11 than the second mounting section 122.

[0028] like Figure 2As shown, the mounting structure 2 includes a first bearing housing 21, a first bearing assembly 22, a second bearing housing 23, a second bearing assembly 24, and a clamping assembly 27. Specifically, the first bearing housing 21 has a first mounting hole 211 inside, the first bearing assembly 22 is disposed in the first mounting hole 211, and a first mounting section 121 is connected to the first bearing assembly 22. The first mounting section 121 is rotatably connected to the first bearing housing 21 through the first bearing assembly 22. The second bearing housing 23 is disposed in the first mounting hole 211, and the second bearing housing 23 and the first bearing assembly 22 are arranged adjacent to each other along the axial direction of the roller shaft 1. The second bearing housing 23 has a second mounting hole 231 inside, and the second bearing assembly 24... The second mounting section 122 is located within the second mounting hole 231 and is connected to the second bearing assembly 24. The second mounting section 122 is rotatably connected to the second bearing seat 23 through the second bearing assembly 24. It can be understood that, through the first bearing seat 21 and the second bearing seat 23, the second bearing seat 23 is located inside the first bearing seat 21, thus forming an "inner-outer double-layer bearing structure". Therefore, through the synergistic effect of the first bearing seat 21 and the second bearing seat 23, the running stress of the roller shaft 1 can be effectively dispersed, and the vibration and displacement deviation of the roller shaft 1 caused by the clearance of the first bearing assembly 22 and the second bearing assembly 24 can be significantly reduced, thereby greatly improving the stability and accuracy of the electrode coating process.

[0029] Further explanation: The first bearing housing 21 has a through hole 212, which communicates with the first mounting hole 211. The axis of the through hole 212 intersects the axis of the roller shaft 1, and the axes of the first mounting hole 211 and the second mounting hole 231 coincide with the axis of the roller shaft 1. The clamping assembly 27 passes through the through hole 212 outside the first bearing housing 21 and abuts against the second bearing housing 23 located in the first mounting hole 211. On the one hand, the clamping assembly 27 can provide support for the second bearing housing 23 in the radial direction of the roller shaft 1, preventing the second bearing housing 23 from being suspended in the first mounting hole 211. On the other hand, the direction of the torque applied by the clamping assembly 27 to the second bearing housing 23 is the same as the radial direction of the roller shaft 1. That is, the thrust generated by the clamping assembly 27 on the second bearing housing 23 is transmitted to the roller shaft 1 through the second bearing housing 23 and the second bearing assembly 24. Under the action of this thrust, the clearance between the second bearing assembly 24 and the roller shaft 1 and the first bearing assembly are dispersed. The dispersed clearance between component 22 and roller 1 will be redistributed. In other words, the clearance of the inner and outer rings of the second bearing assembly 24 on the side closer to the clamping assembly 27 will be reduced, and the clearance of the inner and outer rings of the first bearing assembly 22 on the side farther from the clamping assembly 27 will be reduced. The clearances on the opposite sides of the first bearing assembly 22 and the second bearing assembly 24 will be reduced, thereby reducing the radial floating space of roller 1. During the coating process, because roller 1 has a smaller radial floating space, the amount of floating change between the roller gaps of the two rollers 1 can be reduced, so as to achieve precise control of the roller gaps and improve the quality of coating film formation. Furthermore, the thrust of the clamping assembly 27 is concentrated in one direction, thereby achieving precise fixation of the clearance position of the first bearing assembly 22. At the same time, by utilizing the bidirectional adjustment function of the clamping assembly 27, the clearance of the first bearing assembly 22 can be synchronously and precisely controlled, so that the clearance is strictly maintained within the range required by the process standard.

[0030] The mounting structure 2 of the pressure roller mechanism 100 of this application can improve the stability and reliability of the clearance of the first bearing assembly 22 and the second bearing assembly 24, thereby avoiding the problem of unstable coating thickness caused by clearance changes.

[0031] like Figure 2As shown, in an optional embodiment, there is a gap between the second bearing seat 23 and the first bearing seat 21. Specifically, the second bearing seat 23 is located in the first mounting hole 211 of the first bearing seat 21, and there is a certain distance between the inner wall of the first bearing seat 21 and the outer wall of the second bearing seat 23. The clamping component 27 extends into the first mounting hole 211 through the through hole 212 and abuts against the second bearing seat 23. In this embodiment, the gap between the first bearing seat 21 and the second bearing seat 23 facilitates the installation of the first bearing seat 21 and the second bearing seat 23. On the other hand, when the clamping component 27 abuts against the second bearing seat 23, it can provide a certain deformation space for the second bearing seat 23.

[0032] like Figure 2 and Figure 3 As shown, in an optional embodiment, both ends of the roller 1 further include a third mounting section 123, which is connected to the second mounting section 122. The second mounting section 122 is located between the first mounting section 121 and the third mounting section 123. Specifically, both the first connecting shaft 12a and the second connecting shaft 12b further include a third mounting section 123, which is connected to the second mounting section 122. The third mounting section 123 is also connected to the end of the body 11. That is, the first mounting section 121, the second mounting section 122, and the third mounting section 123 are connected sequentially.

[0033] Among them, roller 1 can be integrally formed.

[0034] like Figure 2 As shown, the mounting structure 2 further includes a third bearing assembly 25, which is located in the third mounting section 13. The second bearing seat 23 is located between the first bearing assembly 22 and the third bearing assembly 25. The third bearing assembly 25 abuts against the axial end portion of the second bearing assembly 24. Specifically, the third bearing assembly 25 is disposed in the first mounting hole 211 of the first bearing seat 21. The third bearing assembly 25 and the first bearing assembly 22 are spaced apart along the axial direction of the roller shaft 1. The second bearing seat 23 is located between the first bearing assembly 22 and the third bearing assembly 25. The third bearing assembly 25 is located in the third mounting section 13, and the axial end portion of the third bearing assembly 25 abuts against the second bearing assembly 24. In this embodiment, the third bearing assembly 25 can limit the axial clearance of a portion of the second bearing assembly 24 to improve the rotational stability of the roller shaft 1.

[0035] like Figure 2As shown, in an optional embodiment, the third bearing assembly 25 includes a first bearing 251 and a first spacer 252. The outer ring of the first bearing 251 is connected to the first bearing housing 21, and the inner ring of the first bearing 251 is connected to the first spacer 252. The third mounting section 123 is suspended from the first spacer 252, and the axial end of the first spacer 252 abuts against the outer ring of the second bearing assembly 24. Specifically, the outer ring of the first bearing 251 is connected to the inner wall of the first bearing housing 21, the outer wall of the first spacer 252 is connected to the inner ring of the first bearing 251, and the third mounting section 123 is suspended from the first spacer 252. In this embodiment, the first spacer 252 abuts against the axial end face of the second bearing housing 23 and the axial end face of the outer ring of the second bearing assembly 24, thereby limiting the second bearing housing 23 and the second bearing assembly 24 in the axial direction of the roller 1 to eliminate their axial clearance.

[0036] like Figure 2 and Figure 3 As shown, in an optional embodiment, the outer diameter of the first mounting section 121 is larger than the outer diameter of the second mounting section 122; it can be understood that the first mounting section 121 and the second mounting section 122 are stepped shafts, and a platform 124 is formed between the first mounting section 121 and the second mounting section 122; the first bearing assembly 22 includes a second bearing 221, the outer ring of the second bearing 221 is connected to the first bearing seat 21, and the inner ring of the second bearing 221 is connected to the first mounting section 121; specifically, the axial end face of the second bearing seat 23 approaches the platform 124 through the axial end face of the second bearing assembly 24, and the platform 124 can restrict the axial movement of the second bearing seat 23 and the second bearing assembly 24; and when there is a certain distance between the first bearing seat 21 and the second bearing seat 23, the first bearing seat 21 and the first mounting section 121 only need the second bearing 221 to achieve a rotatable connection, and no other components are needed; in this embodiment, the structure is relatively simple and the installation is more convenient.

[0037] In another alternative embodiment, the outer diameter of the first mounting section 121 is the same as the outer diameter of the second mounting section 122; the first bearing assembly 22 includes a third bearing (not shown) and a second spacer (not shown), the outer ring of the third bearing is disposed on the third bearing housing, the second spacer is disposed on the inner ring of the third bearing, and the first mounting section 121 is connected to the second spacer. Specifically, by providing the second spacer, a certain distance is created between the second bearing housing 23 and the first bearing housing 21.

[0038] like Figure 2As shown, in an optional embodiment, the second bearing assembly 24 includes a fourth bearing 241 and a fifth bearing 242, which are arranged adjacent to each other along the axial direction of the roller shaft 1. Specifically, the fourth bearing 241 is disposed in the second mounting hole 231 of the second bearing seat 23, and the fifth bearing 242 is disposed in the second mounting hole 231 of the second bearing seat 23. The fourth bearing 241 and the fifth bearing 242 are arranged adjacent to each other along the axial direction of the roller shaft 1. In this embodiment, by providing the fourth bearing 241 and the fifth bearing 242, the load borne by the roller shaft 1 is shared by the fourth bearing 241 and the fifth bearing 242, thereby improving the service life of the fourth bearing 241 and the fifth bearing 242, and also improving the safety of the pressure roller mechanism 100.

[0039] like Figure 2 As shown, in an optional embodiment, the clamping assembly 27 includes a first clamping member 271 and a second clamping member 272. The first clamping member 271 abuts against the second bearing seat 23 at the position of the fourth bearing 241, and the second clamping member 272 abuts against the second bearing seat 23 at the position of the fifth bearing 242. Specifically, the first bearing seat 21 has two through holes 212. The first clamping member 271 passes through one of the through holes 212 and abuts against the second bearing seat 23. The abutment position corresponds to the position of the fourth bearing 241. That is, the thrust applied by the first clamping member 271 to the second bearing seat 23 is indirectly applied. The first clamping member 272 passes through another through hole 212 and abuts against the second bearing seat 23. The position of the abutment corresponds to the position of the fifth bearing 242. That is to say, the thrust applied by the second clamping member 272 to the second bearing seat 23 is indirectly applied to the fifth bearing 242. By setting the first clamping member 271 and the second clamping member 272, the magnitude of the thrust applied to the fourth bearing 241 and the magnitude of the thrust applied to the fifth bearing 242 can be controlled separately to achieve precise control of the clearance of the fourth bearing 241 and the clearance of the fifth bearing 242, thereby improving the rotational stability of the roller 1.

[0040] The first clamping member 271 can be a bolt, screw, or pin, etc.; the second clamping member 272 can be a bolt, screw, or pin, etc.

[0041] like Figure 2As shown, in an optional embodiment, the mounting structure 2 further includes a locking assembly 26, which is disposed on the third mounting section 123 and abuts against the axial end of the second bearing assembly 24. Specifically, the locking assembly 26 is disposed on the third mounting section 123 and abuts against the axial end face of the inner ring of the second bearing assembly 24. The locking assembly 26 restricts the axial clearance of the second bearing assembly 24 on the roller 1, thereby improving the rotational stability of the roller 1.

[0042] The installation steps of the pressure roller mechanism 100 in this application are as follows: First, the first bearing assembly 22 is installed in the first mounting section 121, and the second bearing assembly 24 is installed in the second mounting section 122. Heating components can be used to assist in the installation of the first bearing assembly 22 and the second bearing assembly 24 to ensure smooth installation.

[0043] Then, the locking assembly 26 is installed in the third mounting section 123 to eliminate the axial clearance of the second bearing assembly 24 to ensure installation accuracy.

[0044] Then, install the second bearing housing 23.

[0045] Then, the third bearing assembly 25 is installed in the third mounting section 123.

[0046] Then, install the first bearing housing 21.

[0047] Then, the clamping assembly 27 is installed into the through hole 212 to abut against the second bearing housing 23.

[0048] Finally, the locking flange of the fixed roller 1 is used to complete the installation.

[0049] According to a second aspect of the embodiments of this application, a coating apparatus is provided, including the pressure roller mechanism 100 described above.

[0050] 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 pressure roller mechanism, characterized in that, Includes a roller shaft, with mounting structures installed at both ends of the roller shaft; Both ends of the roller shaft include a first mounting section and a second mounting section connected together; The mounting structure includes a first bearing housing, a first bearing assembly, a second bearing housing, a second bearing assembly, and a clamping assembly. The first mounting section is disposed inside the first bearing housing via the first bearing assembly. The first bearing housing has a through hole that communicates with the interior of the first bearing housing. The second bearing housing is disposed inside the first bearing housing. The second mounting section is connected to the second bearing housing via the second bearing assembly. The clamping assembly passes through the through hole and abuts against the second bearing housing.

2. The pressure roller mechanism according to claim 1, characterized in that, There is a gap between the second bearing housing and the first bearing housing.

3. The pressure roller mechanism according to claim 1, characterized in that, Both ends of the roller shaft also include a third mounting section, which is connected to the second mounting section, and the second mounting section is located between the first mounting section and the third mounting section; The mounting structure further includes a third bearing assembly located in the third mounting section, the second bearing housing located between the first bearing assembly and the third bearing assembly, and the third bearing assembly abutting against a portion of the axial end of the second bearing assembly.

4. The pressure roller mechanism according to claim 3, characterized in that, The third bearing assembly includes a first bearing and a first spacer. The outer ring of the first bearing is connected to the first bearing housing, the inner ring of the first bearing is connected to the first spacer, the third mounting section is suspended from the first spacer, and the axial end of the first spacer abuts against the outer ring of the second bearing assembly.

5. The pressure roller mechanism according to claim 1, characterized in that, The outer diameter of the first mounting section is larger than the outer diameter of the second mounting section; The first bearing assembly includes a second bearing, the outer ring of which is connected to the first bearing housing, and the inner ring of which is connected to the first mounting section.

6. The pressure roller mechanism according to claim 1, characterized in that, The outer diameter of the first mounting section is the same as the outer diameter of the second mounting section; The first bearing assembly includes a third bearing and a second spacer. The outer ring of the third bearing is disposed in a third bearing housing, and the second spacer is disposed in the inner ring of the third bearing. The first mounting section is connected to the second spacer.

7. The pressure roller mechanism according to claim 1, characterized in that, The second bearing assembly includes a fourth bearing and a fifth bearing, the fourth bearing and the fifth bearing being arranged adjacent to each other along the axial direction of the roller shaft.

8. The pressure roller mechanism according to claim 7, characterized in that, The clamping assembly includes a first clamping member and a second clamping member. The first clamping member abuts against the second bearing seat at the position of the fourth bearing, and the second clamping member abuts against the second bearing seat at the position of the fifth bearing.

9. The pressure roller mechanism according to claim 3, characterized in that, The mounting structure also includes a locking assembly, which is located in the third mounting section and abuts against the axial end of the second bearing assembly.

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

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