Upper roller of glass calendering roller

Abstract

The utility model relates to an upper roller of a glass calendering roller, and belongs to the field of glass manufacturing. The upper roller of the glass calendering roller comprises a roller body, connecting parts and an inner shaft, the roller body is an upper roller main body of the glass calendering roller, the roller body is cylindrical, the connecting parts are arranged on the two sides of the roller body, the outer diameter of each connecting part is smaller than that of the roller body, and the inner shaft is arranged at the symmetric axis in the roller body; the center of the periphery of the roller body is a roller center; transition parts are arranged at the two ends of the roller body; the outer diameter of the roller center is 0.3 mm smaller than the outer diameter of the transition portion. The glass calender has the advantages of reasonable structural design, uniform and consistent thickness of calendered glass, high structural strength, stable operation and capability of finding deformation in time.

Description

Technical Field

[0001] The utility model relates to an upper roller of a glass calendering roller and belongs to the field of glass manufacturing. Background Art

[0002] In the process of rolling glass, the melted glass flows out of the melting pool and enters the rolling machine, where it is cooled, hardened and pressed into plate-shaped glass. The rolling machine includes upper and lower rolling rollers, which are the key components of the rolling machine. When the glass liquid passes between the rolling rollers, the upper and lower rolling rollers roll and roll the glass liquid at the same time to complete the process of hydraulically pressing the glass into plate-shaped glass.

[0003] The calendering rollers used by the entire industry are all straight-faced rollers, that is, the main body of the calendering roller is a cylindrical roller body with a uniform outer diameter. The thickness of the glass plates rolled out by them is basically the same. However, when the molten glass is formed between two calendering rollers, the temperature of the molten glass in the middle position is often higher than the temperature of the molten glass on both sides. As a result, the rolled glass plates are often thin in the middle and thick on both sides after being stretched by the speed difference between the annealing furnace and the calender.

[0004] In order to solve this problem, a Chinese utility model patent with patent publication number CN220555668U discloses a calendering roller structure and a glass production line for improving the thickness difference of rolled glass, including two calendering rollers. A cooling water core is provided inside at least one of the calendering rollers along its axial length direction. The vertical width of the cooling water core is a structural form that first increases and then decreases in the axial direction, and the position of the maximum vertical width of the cooling water core corresponds to the axial centerline position of the calendering roller. The position of the maximum vertical width of the cooling water core corresponds to the axial centerline position of the calendering roller, that is, the cooling water core as a whole has a large volume in the middle area and a small volume at both end areas. In this way, when cooling water flows through the cooling water core, the cooling water volume at the large volume of the middle area of ​​the cooling water core is also large, and the cooling water volume at the small volume of the two end areas is also small. In this way, the cooling water core can have a good cooling effect on the middle area of ​​the calendering roller, and the temperature of the middle area of ​​the calendering roller is low. The cooling effect of the cooling water core on the two ends of the calendering roller is poor, and the temperature at the two end positions of the calendering roller is high. This is exactly the opposite of the situation where the temperature of the glass liquid is high in the middle position and low at the two end positions. The purpose of offsetting the temperature difference is achieved, so that the thickness of the calendered glass is uniform, and the phenomenon that the calendered glass is thin in the middle and thick on both sides is improved.

[0005] However, in order to achieve the cooling effect, this solution needs to increase the space of the cooling water core, which will reduce the strength of the entire calender roller, especially in the production of glass with a relatively large area. In addition, the larger the space of the cooling water core, the more difficult it is to control the cooling speed, which can easily lead to unstable product quality and bring hidden dangers to production. Summary of the invention

[0006] The technical problem to be solved by the utility model is to provide an upper roller of a glass calendering roller with reasonable structural design, uniform thickness of calendered glass, high structural strength, stable operation and the ability to detect deformation in time.

[0007] The technical solution adopted by the utility model to solve the above technical problems is that the upper roller of the glass rolling roller comprises a roller body, a connecting part and an inner shaft, wherein the roller body is the main body of the upper roller of the glass rolling roller, the roller body is cylindrical, connecting parts are arranged on both sides of the roller body, the outer diameter of the connecting part is smaller than the roller body, and the inner shaft is arranged at the symmetric axis inside the roller body;

[0008] Its structural features are:

[0009] The center of the periphery of the roller body is the roller center;

[0010] The two ends of the roller body are transition parts;

[0011] The outer diameter of the center of the roller is 0.3 mm smaller than the outer diameter of the transition portion;

[0012] Preferably, the transition parts on both sides of the utility model are symmetrical to each other, and the width of the transition parts is 300.

[0013] Preferably, the edge of the transition portion of the utility model transitions smoothly from the edge of the transition portion to the center of the roller in an arc shape.

[0014] Preferably, the outer diameter of 250 mm on both sides of the center of the roller of the utility model is 0.3 mm smaller than the outer diameter of the transition part.

[0015] Preferably, the utility model provides a smooth arc-shaped transition from 250 mm on both sides of the roller center to the transition portion.

[0016] Preferably, the diameter of the transition portion of the utility model is 370 mm, and the diameter of the center of the roller is 364.4 mm.

[0017] Preferably, the length of the roller body of the utility model is 1300mm to 1700mm.

[0018] Preferably, a deformation sensor is provided in the roller body of the utility model.

[0019] Compared with the prior art, the utility model has the following advantages and effects:

[0020] 1. Due to the diameter drop in the middle of the roller, when rolling the glass, the thickness of the middle part of the glass plate rolled by the rolling machine is slightly greater than that of the edge, which is used to compensate for the thinning of the middle part of the glass plate caused by stretching, so as to achieve the consistency of the thickness of the final product. The thickness of the rolled glass is uniform and the product quality is stable.

[0021] 2. The reasonable setting of the dimensions of the upper roller further ensures the stability and quality of the produced glass.

[0022] 3. Due to the installation of deformation sensor, the deformation of the upper roller can be detected in time. In a high temperature environment, it can be adjusted and replaced in time, further ensuring the quality and stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Explanation of reference numerals: roller body 1, connecting part 2, inner shaft 3, roller center 4, transition part 5, deformation sensor 6. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the embodiments. The following embodiments are intended to explain the present invention but the present invention is not limited to the following embodiments.

[0027] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figure 1 The described embodiments are exemplary and intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Embodiment 1:

[0032] like Figure 1 As shown, this embodiment describes an upper roller of a glass calendering roller, the main body of which is a cylindrical roller body 1 with a hollow interior, and on both sides of the roller body 1 are connecting parts 2 with a smaller diameter. An inner shaft 3 is arranged at the central axis inside the roller body 1 and the connecting part 2, and a cooling water channel is arranged between the inner shaft 3 and the roller body 1 and the connecting part 2. The roller center 4 is in the middle of the outer periphery of the roller body 1. In this embodiment, the diameter within a range of 250 mm on both sides of the roller center 4 is consistent, both of which are 369.4 mm. The two ends of the roller body 1 are transition parts 5 with a length of 300 mm, and the diameter of the transition part 5 is 370 mm. That is to say, in the horizontal direction, the thickest part of the roller body 1 is 0.3 mm higher than the thinnest part. A deformation sensor 6 is arranged on the inner surface of the roller body 1, and the deformation sensor 6 is used to measure the deformation of the roller body 1 in real time.

[0033] In this embodiment, the length of the roller body 1 is 3000 mm.

[0034] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different. All equivalent or simple changes made based on the structure, features and principles described in the concept of the utility model patent are included in the protection scope of the utility model patent. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. An upper roller of a glass rolling roller, comprising a roller body, a connecting part, and an inner shaft, wherein the roller body is the main body of the upper roller of the glass rolling roller, the roller body is cylindrical, connecting parts are arranged on both sides of the roller body, the outer diameter of the connecting part is smaller than the roller body, and the inner shaft is arranged at the symmetry axis inside the roller body; Features: The center of the periphery of the roller body is the roller center; Both ends of the roller body are transition parts; The outer diameter of the center of the roller is smaller than the outer diameter of the transition portion by 0.3 mm.

2. The upper roller of the glass calendering roller according to claim 1, characterized in that: The transition parts on both sides are symmetrical to each other, and the width of the transition part is 300.

3. The upper roller of the glass calendering roller according to claim 1, characterized in that: The edge of the transition portion transitions smoothly from the center of the roller to an arc shape.

4. The upper roller of the glass calendering roller according to claim 1, characterized in that: The outer diameter of 250 mm on both sides of the center of the roller is 0.3 mm smaller than the outer diameter of the transition part.

5. The upper roller of the glass calendering roller according to claim 4, characterized in that: 250mm on both sides of the center of the roller, there is a smooth arc-shaped transition to the transition part.

6. The upper roller of the glass calendering roller according to claim 1, characterized in that: The diameter of the transition portion is 370 mm, and the diameter of the roller center is 364.4 mm.

7. The upper roller of the glass calendering roller according to claim 1, characterized in that: The length of the roller body is 2600 mm to 3400 mm.

8. The upper roller of the glass calendering roller according to claim 1, characterized in that: A deformation sensor is arranged in the roller body.

Images