Ceramic back roller suitable for high-temperature coating

Abstract

The utility model discloses a ceramic back roller suitable for high-temperature coating. The ceramic back roller comprises a roller cylinder, a roller core and flange plates, the roller is in a cylindrical shape with two open ends, the roller core is arranged on the roller in a penetrating mode to support the roller, and the two flange plates are arranged at the two ends of the roller respectively and arranged on the roller core in a sleeving mode so that the roller can be fixed to the roller core. The roller is made of ceramic materials, the ceramic materials have the advantages of being resistant to high temperature, high in strength and not prone to deformation and can be suitable for coating in the high-temperature environment, the exhaust holes communicated with the hollow cavity of the roller are formed in the flange plates, in the assembling process, circulation of air in the roller is facilitated, and it is avoided that in the high-temperature coating process, air pressure in the roller is too large, and coating is not affected. Therefore, the roller is deformed outwards, and the coating consistency is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic rollers, in particular to a ceramic backing roller suitable for high-temperature coating. Background Art

[0002] The coating backing roller is a rapidly rotating roller-like component used to support the foil during coating. The slurry is heated to increase its flow activity and solids content, allowing the wet film to reach a certain temperature before entering the oven. This reduces oven energy consumption and oven length, thereby saving costs. During coating, the slurry flows out through the die lip and adheres to the foil on the backing roller. The backing roller acts as a drive roller to drive the foil, and the temperature of the slurry is transferred to the backing roller. As a key component, the precision of the backing roller directly determines the consistency of the coating, which in turn affects battery performance.

[0003] In the prior art, steel is used to make the coating back roller. During high-temperature coating, the pressure of the gas in the roller cavity increases as the temperature rises, causing the roller body to swell and bulge, affecting the coating uniformity and consistency. Utility Model Content

[0004] Therefore, the purpose of the present invention is to provide a ceramic backing roller suitable for high temperature coating, so as to solve the problem in the prior art that during high temperature coating, the roller body expands and bulges due to the increase in air pressure, which affects the coating uniformity and consistency.

[0005] In order to solve the above technical problems, the technical solutions of the present utility model are as follows:

[0006] A ceramic backing roller suitable for high-temperature coating, comprising: a roller, a roller core and a flange; the roller is cylindrical with both ends open, and the roller is made of ceramic material; the roller core is inserted into the roller to support the roller, and both ends of the roller core extend outside the roller; there are at least two flanges, which are respectively inserted into the two ends of the roller core and fixedly connected to the roller, and an exhaust hole is opened on any of the flanges, and the exhaust hole is suitable for communicating with the hollow cavity of the roller.

[0007] According to some embodiments of the present invention, both ends of the roller are provided with accommodating grooves, suitable for respectively accommodating the two flanges, and the thickness of the flanges is equal to the depth of the accommodating grooves.

[0008] According to some embodiments of the present invention, both ends of the roller core are provided with stepped surfaces, the stepped surfaces are flush with the bottom of the accommodating groove, one end face of the flange plate abuts against the stepped surface, and the other end face of the flange plate is flush with the end face of the roller.

[0009] According to some embodiments of the present invention, the roller core and the two flanges are both made of metal.

[0010] According to some embodiments of the present invention, the flange and the roller core are fixed by welding.

[0011] According to some embodiments of the present invention, the ceramic backing roller suitable for high-temperature coating also includes a plurality of fixing parts, a plurality of first mounting holes are opened on the two flanges, and a plurality of second mounting holes are opened on the two end faces of the roller along the axis, the first mounting holes and the second mounting holes are arranged opposite to each other, and the fixing parts are passed through the first mounting holes and extend into the second mounting holes to be suitable for threaded connection with the roller.

[0012] According to some embodiments of the present invention, a plurality of first mounting holes are provided, and the first mounting holes are evenly spaced along the circumference of the flange.

[0013] According to some embodiments of the present invention, the ceramic backing roller suitable for high-temperature coating also includes a plurality of positioning members, a plurality of first positioning holes are opened on the two flanges, and a plurality of second positioning holes are opened along the circumference of the two end faces of the roller, the first positioning holes and the second positioning holes are arranged opposite to each other, and the positioning member is passed through the first positioning hole and extends into the second positioning hole, so as to be suitable for positioning and installing the flange and the roller.

[0014] According to some embodiments of the present invention, a plurality of first positioning holes are provided, and the first positioning holes are evenly spaced along the circumference of the flange, and the first positioning hole is located between two of the first mounting holes.

[0015] According to some embodiments of the present invention, the exhaust hole and the first mounting hole are spaced apart in the radial direction, the exhaust hole is distributed close to one side of the roller core, and the first mounting hole is distributed close to the outer edge of the flange.

[0016] The technical solution of this utility model has the following advantages:

[0017] This utility model provides a ceramic backing roller suitable for high-temperature coating. The roller is cylindrical with two open ends. A roller core is inserted through the roller to provide support for the roller. Two flanges are provided at each end of the roller and fit over the roller core to secure the roller to the roller core. The roller is made of a ceramic material, which is characterized by high temperature resistance, high strength, and resistance to deformation, making it suitable for coating in high-temperature environments. The flanges are provided with vent holes that communicate with the roller cavity. This facilitates air circulation within the roller during assembly, preventing excessive air pressure within the roller during high-temperature coating, which could cause the roller to deform outward and affect coating consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of a ceramic backing roller suitable for high-temperature coating provided in some embodiments of the present invention;

[0020] Figure 2 A cross-sectional view of a ceramic backing roller suitable for high-temperature coating provided in some embodiments of the present invention;

[0021] Figure 3 This is a left side view of a ceramic backing roller suitable for high-temperature coating provided in some embodiments of the present invention.

[0022] Explanation of the accompanying reference numerals: 1. roller; 2. roller core; 3. flange; 4. fixing member; 5. positioning member; 11. exhaust hole; 12. hollow cavity. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Reference Figure 1 and Figure 2 As shown, some embodiments of the present invention provide a ceramic backing roller suitable for high-temperature coating, including: a roller 1, a roller core 2 and a flange 3; the roller 1 is a cylindrical roller with openings at both ends, and the roller 1 is made of ceramic material; the roller core 2 is inserted into the roller 1 to support the roller 1, and both ends of the roller core 2 extend to the outside of the roller 1; there are at least two flanges 3, which are respectively inserted into the two ends of the roller core 2 and fixedly connected to the roller 1, and an exhaust hole 11 is opened on any flange 3, and the exhaust hole 11 is suitable for communicating with the hollow cavity 12 of the roller 1.

[0028] Specifically, the ceramic backing roller suitable for high-temperature coating provided by the present invention comprises a roller 1 in the shape of a cylinder with openings at both ends, a roller core 2 passing through the roller 1 to provide support for the roller 1, and two flanges 3 provided at both ends of the roller 1 and sleeved on the roller core 2 to secure the roller 1 to the roller core 2. The roller 1 is made of a ceramic material, which is resistant to high temperatures, has high strength, and is not easily deformed, making it suitable for coating in high-temperature environments. An exhaust hole 11 is provided on the flange 3 and communicates with a hollow cavity 12 in the roller 1. This facilitates the circulation of air within the roller 1 during assembly, preventing excessive air pressure within the roller 1 during high-temperature coating, which could cause the roller 1 to deform outward and affect coating consistency.

[0029] It is understandable that the traditional roller 1 is made of metal. Under high-temperature coating, the metal is easily deformed by heat, which affects the consistency of the coating. Moreover, after long-term use, the metal layer is easy to fall off. The metal impurities after falling off contaminate the coating quality and affect the performance of the battery. In some embodiments of the present invention, the roller 1 is made of ceramic material. The ceramic material is not easy to deform in a high-temperature environment and avoids the problem of the metal coating falling off during the coating process. In addition, by setting the roller 1 to a ceramic material, the overall mass of the back roller is reduced, and the torque and inertia required for driving are reduced, thereby improving the driving performance and control performance, and ensuring the precise control of the whole machine.

[0030] It should be noted that after the installation and dynamic balancing test, the exhaust hole 11 can be blocked.

[0031] Reference Figure 2 As shown, in some embodiments of the present invention, both ends of the roller 1 are provided with accommodating grooves to accommodate two flanges 3 respectively, and the thickness of the flanges 3 is equal to the depth of the accommodating grooves.

[0032] In some embodiments of the present invention, both ends of the roller core 2 are provided with stepped surfaces, the stepped surfaces are flush with the bottom of the accommodating groove, one end face of the flange 3 abuts against the stepped surface, and the other end face of the flange 3 is flush with the end face of the roller 1.

[0033] Specifically, grooves are formed at both ends of the roller 1 to accommodate two flanges 3. Two stepped surfaces are provided at each end of the roller core 2, each flush with the bottom of the groove. One end of the flange 3 abuts against the stepped surface, while the other end of the flange 3 is flush with the end of the roller 1. The flanges 3 are suitable for fixing the roller 1 to the roller core 2. The stepped surfaces at both ends of the roller core 2 are suitable for accurately positioning the flanges, thereby ensuring accurate installation of the roller 1 and improving the stability of the structure.

[0034] In some embodiments of the present invention, the roller core 2 and the two flanges 3 are both made of metal.

[0035] In some embodiments of the present invention, the flange 3 and the roller core 2 are fixed by welding.

[0036] Specifically, during the working process of the back roller, the roller core 2 provides support for the roller 1 while needing to withstand the driving torque. To prevent the roller 1 from being deformed by the torque during operation, the fixed shaft heads at both ends are used to ensure that the roller body is not affected when subjected to impact loads. The roller core 2 and the two flanges 3 are made of metal, and the flanges 3 are fixed to the roller core 2 by welding to further improve the structural strength.

[0037] Reference Figure 2 and Figure 3 As shown, in some embodiments of the present invention, the ceramic backing roller suitable for high-temperature coating also includes a plurality of fixing parts 4, a plurality of first mounting holes are opened on the two flanges 3, and a plurality of second mounting holes are opened on the two end faces of the roller 1 along the axis. The first mounting holes and the second mounting holes are arranged opposite to each other, and the fixing parts 4 are passed through the first mounting holes and extend into the second mounting holes to be suitable for threaded connection with the roller 1.

[0038] In some embodiments of the present invention, a plurality of first mounting holes are provided, and the first mounting holes are evenly spaced along the circumference of the flange 3 .

[0039] Specifically, before the flange 3 and the roller core 2 are welded and fixed, the flange 3 and the roller 1 are first fixed and installed. A plurality of first mounting holes are opened on the flange 3, and a plurality of second mounting holes are opened on the end face of the roller 1 along the axial direction. The fixing member 4 is passed through the first mounting hole and extends into the second mounting hole to be threadedly connected to the roller 1. It can be understood that the fixing member 4 is a screw.

[0040] It should be noted that the flange 3 is disc-shaped, and multiple first mounting holes are evenly spaced along the circumference of the flange 3 to improve force balance and avoid stress concentration. The first mounting holes and the second mounting holes are correspondingly arranged to ensure that the fixing member 4 is inserted and fixed.

[0041] Reference Figure 3 As shown, in some embodiments of the present invention, the ceramic backing roller suitable for high-temperature coating also includes a plurality of positioning members 5, a plurality of first positioning holes are opened on the two flanges 3, and a plurality of second positioning holes are opened along the circumferential direction on both end faces of the roller 1. The first positioning holes and the second positioning holes are arranged opposite to each other, and the positioning members 5 are passed through the first positioning holes and extend into the second positioning holes, so as to be suitable for positioning and installing the flanges 3 and the roller 1.

[0042] In some embodiments of the present invention, a plurality of first positioning holes are provided, and the first positioning holes are evenly spaced along the circumference of the flange 3 , and the first positioning hole is located between two first mounting holes.

[0043] Specifically, the positioning member 5 achieves precise positioning of the roller core 2 and the roller 1. The torque transmitted from the roller core 2 to the roller 1 is also borne by the fixing member 4, eliminating the gap error that would otherwise exist simply due to the fixing method of the fixing member 4. Before tightening the fixing member 4, the positioning member 5 is first used for positioning and installation. In some embodiments of the present invention, the positioning member 5 is a pin, which is inserted through the first positioning hole and extended into the second positioning hole to position and install the flange 3 and the roller 1. Subsequently, the fixing member 4 is inserted through the first mounting hole and extended into the second mounting hole to be threadedly connected to the roller 1 to secure the flange 3 to the roller 1. This connection method further improves the structural steady-state consistency in high-temperature environments and enhances structural stability.

[0044] In some embodiments of the present invention, the exhaust hole 11 and the first mounting hole are spaced apart in the radial direction, the exhaust hole 11 is distributed close to one side of the roller core 2 , and the first mounting hole is distributed close to the outer edge of the flange 3 .

[0045] Specifically, in order to ensure structural stability and avoid excessive stress concentration, the exhaust hole 11 and the first mounting hole are arranged radially at intervals, and the exhaust hole 11 is distributed close to one side of the roller core 2 to communicate with the hollow cavity 12 of the middle part, and the first mounting hole is distributed close to the outer edge of the flange 3 to facilitate the penetration and installation of the fixing part 4.

[0046] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A ceramic backing roller suitable for high temperature coating, characterized in that: include: The roller (1) is in the shape of a cylinder with openings at both ends, and the roller (1) is made of ceramic material; A roller core (2) is inserted into the roller (1) to support the roller (1), and both ends of the roller core (2) extend outside the roller (1); At least two flanges (3) are respectively passed through the two ends of the roller core (2) and fixedly connected to the roller (1). An exhaust hole (11) is opened on any of the flanges (3), and the exhaust hole (11) is suitable for communicating with the hollow cavity (12) of the roller (1).

2. The ceramic backing roller suitable for high temperature coating according to claim 1, characterized in that: Both ends of the roller (1) are provided with accommodating grooves suitable for accommodating the two flanges (3) respectively, and the thickness of the flanges (3) is equal to the depth of the accommodating grooves.

3. The ceramic backing roller suitable for high temperature coating according to claim 2, characterized in that: Both ends of the roller core (2) are provided with stepped surfaces, the stepped surfaces are flush with the bottom of the accommodating groove, one end surface of the flange (3) abuts against the stepped surface, and the other end surface of the flange (3) is flush with the end surface of the roller (1).

4. The ceramic backing roller suitable for high temperature coating according to any one of claims 1 to 3, characterized in that: The roller core (2) and the two flanges (3) are both made of metal.

5. The ceramic backing roller suitable for high temperature coating according to claim 4, characterized in that: The flange (3) and the roller core (2) are fixed by welding.

6. The ceramic backing roller suitable for high temperature coating according to claim 1, characterized in that: It also includes a plurality of fixing members (4), the two flanges (3) are each provided with a plurality of first mounting holes, the two end faces of the roller (1) are each provided with a plurality of second mounting holes along the axis, the first mounting holes and the second mounting holes are arranged opposite to each other, the fixing members (4) are passed through the first mounting holes and extend into the second mounting holes so as to be suitable for being threadedly connected to the roller (1).

7. The ceramic backing roller suitable for high temperature coating according to claim 6, characterized in that: A plurality of the first mounting holes are provided and are evenly spaced along the circumference of the flange (3).

8. The ceramic backing roller suitable for high temperature coating according to claim 6 or 7, characterized in that: It also includes a plurality of positioning members (5), the two flanges (3) are each provided with a plurality of first positioning holes, the two end faces of the roller (1) are each provided with a plurality of second positioning holes along the circumferential direction, the first positioning holes and the second positioning holes are arranged opposite to each other, the positioning members (5) are passed through the first positioning holes and extend into the second positioning holes, so as to be suitable for positioning and installing the flanges (3) and the roller (1).

9. The ceramic backing roller suitable for high temperature coating according to claim 8, characterized in that: A plurality of the first positioning holes are provided, and the first positioning holes are evenly spaced along the circumference of the flange (3), and the first positioning hole is located between two of the first mounting holes.

10. The ceramic backing roller suitable for high temperature coating according to claim 6 or 7, characterized in that: The exhaust hole (11) and the first mounting hole are arranged at intervals in the radial direction, the exhaust hole (11) is distributed close to one side of the roller core (2), and the first mounting hole is distributed close to the outer edge of the flange (3).

Images