A kind of edge wheel of ultrathin glass substrate

Abstract

The application discloses a kind of ultra-thin glass substrate's pull edge wheel, including pull edge wheel, at least one circle ratchet is provided on the outer circumferential surface of pull edge wheel, flat round table is also provided on the outer circumferential surface of pull edge wheel, the diameter of flat round table is less than the diameter of ratchet, cooling cavity inner side of pull edge wheel is provided with cooling member, the outer circumferential of cooling member is uniformly provided with multiple openings corresponding with ratchet, the outer side of cooling member is provided with cavity pipe communicated therewith.The pull edge wheel of the application can flatten the wrinkle of the edge of ultra-thin glass ribbon during pulling when pulling ultra-thin glass, prevent the wrinkle from being eliminated because of the fast setting of glass edge, affect product quality, and increase the subsequent processing (edge cutting) process.In addition, the cooling member is arranged in the cooling cavity of the pull edge wheel, which can cool and accelerate the setting while flattening the wrinkle of the glass ribbon by the pull edge wheel, and prevent the edge from shrinking during the subsequent natural cooling of the ultra-thin glass.

Description

Technical Field

[0001] This invention relates to the field of edge-pulling machines for glass production, and in particular to an edge-pulling wheel for ultra-thin glass substrates. Background Technology

[0002] The edge-pulling machine is a core piece of equipment in float glass production, playing a crucial role in throttling, thinning, thickening, and controlling the orientation of the raw glass sheet. In the float glass production process, the edge-pulling machine's rollers draw the molten glass to produce the glass. The principle is that the edge-pulling rollers at the very front of the machine pull the glass strip, which has a certain viscosity and floats on the surface of the molten tin bath, forward. The thickness and width of the glass strip can be controlled and stabilized by adjusting the linear speed, horizontal swing angle, and plane tilt angle of the rollers. While the rollers pull the glass, they simultaneously shape it and cool it with circulating water.

[0003] When producing ultra-thin glass (approximately 2mm thick), ordinary edge-pulling wheels cannot effectively shape it. Because the edges of ultra-thin glass are thin, the combined action of traction, compression, and cooling by the ratchet of the edge-pulling wheel causes wrinkles to appear at the glass edge due to the rapid shaping. These wrinkles are difficult to smooth out naturally and require subsequent cutting, affecting the quality and processing efficiency of the ultra-thin glass. Summary of the Invention

[0004] The purpose of this invention is to provide a folding wheel for ultra-thin glass substrates to solve the problem that when the folding wheel works on ultra-thin glass, wrinkles appear and are quickly shaped, and these wrinkles are difficult to smooth out or eliminate naturally.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An edge-pulling wheel for an ultra-thin glass substrate includes an edge-pulling wheel with at least one ring of ratchet teeth on its outer circumferential surface. A flattening truncated cone is also provided on the outer circumferential surface of the edge-pulling wheel, the diameter of which is smaller than the diameter of the ratchet teeth. A cooling-promoting element is provided on the inner side of the cooling cavity of the edge-pulling wheel. A plurality of openings corresponding to the ratchet teeth are uniformly provided on the outer circumference of the cooling-promoting element, and a cavity tube communicating with the cooling-promoting element is provided on its outer side.

[0007] A further technical solution is that the axial width of the leveling frustum is not less than 40mm.

[0008] A further technical solution is that the radius difference between the flattening frustum and the ratchet is no greater than 1.5mm.

[0009] A further technical solution is that the cooling component is a disc-shaped part adapted to the side of the cooling cavity, and the outer periphery of the cooling component is covered with at least one layer of filter screen.

[0010] A further technical solution is that the cavity tube is rotatably connected to the cooling component.

[0011] A further technical solution is that the cooling component is provided with a flow equalization plate that is adapted to its opening.

[0012] A further technical solution is that the opening of the cooling component is a liquid outlet.

[0013] A further technical solution is: a rotating joint is installed on the flange of the pull wheel, and a conduit adapted to the cavity tube is provided on the rotating joint.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0015] The edge-pulling wheel of this invention can flatten wrinkles that appear at the edges of ultra-thin glass strips during the pulling process, preventing wrinkles from remaining due to rapid glass edge setting, which would affect product quality and increase the need for subsequent processing (edge ​​trimming). Furthermore, a cooling-promoting component is installed in the cooling chamber of the edge-pulling wheel. This component not only flattens the wrinkles of the glass strip but also accelerates cooling and setting, preventing the edges of the ultra-thin glass from shrinking inwards during subsequent natural cooling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the edge-pulling wheel for an ultra-thin glass substrate according to the present invention.

[0017] Figure 2 For the present invention Figure 1 A schematic diagram of the structure of the center pull wheel.

[0018] Reference numerals in the attached drawings: 1. Pulling wheel; 2. Racket tooth; 3. Flattening truncated cone; 4. Cooling chamber; 5. Cooling accelerator; 6. Chamber tube; 7. Filter screen; 8. Flow equalizer; 9. Rotary joint; 10. Guide tube. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0022] 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 further defined and explained in subsequent figures.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 based on the specific circumstances. Example

[0025] This implementation example Figure 1 and Figure 2As shown, an edge-pulling wheel for an ultra-thin glass substrate includes an edge-pulling wheel 1. At least one ring of ratchet teeth 2 is provided on the outer circumferential surface of the edge-pulling wheel 1. A flattening truncated cone 3 is also provided on the outer circumferential surface of the edge-pulling wheel 1. The diameter of the flattening truncated cone 3 is smaller than the diameter of the ratchet teeth 2. A cooling-promoting element 5 is provided on the inner side of the cooling chamber 4 of the edge-pulling wheel 1. Multiple openings corresponding to the ratchet teeth 2 are evenly provided on the outer circumference of the cooling-promoting element 5. A cavity tube 6 communicating with the cooling-promoting element 5 is provided on the outer side of the cooling-promoting element 5. The cavity tube 6 is rotatably connected to the cooling-promoting element 5. A rotating joint 9 is installed on the flange of the edge-pulling wheel 1, and a conduit 10 adapted to the cavity tube 6 is provided on the rotating joint 9.

[0026] The working process of this invention is as follows: The edge-pulling wheel 1 is equipped with a flattening frustum 3 for flattening the edge of the ultra-thin glass. During the pulling of the ultra-thin glass, the flattening frustum 3 flattens the wrinkles that appear at the edge of the ultra-thin glass strip, preventing wrinkles from remaining due to rapid glass edge shaping, which would affect product quality and increase the need for subsequent processing (edge ​​trimming). Furthermore, a cooling-promoting component 5 is installed inside the cooling chamber 4 of the edge-pulling wheel 1. The liquid outlets around the cooling-promoting component 5 face the inner wall of the cooling chamber 4, cooperating with the openings (inlet or outlet) on the flange surface of the edge-pulling wheel 1 to ensure that the coolant circulates within the cooling chamber 4 (the liquid flow is close to the inner surface of the cooling chamber 4). This further ensures that the coolant can flow through the inner surface of the ratchet 2, carrying away the heat transferred from the ratchet 2 and the flattening frustum 3. While the edge-pulling wheel 1 flattens the wrinkles of the glass strip, it also promotes cooling and accelerates shaping, preventing the edge of the ultra-thin glass from shrinking during subsequent natural cooling.

[0027] The cooling component 5 is a disc-shaped part that fits the side of the cooling chamber 4, and the outer periphery of the cooling component 5 is covered with at least one layer of filter screen 7.

[0028] The cooling component 5 is disc-shaped, mainly to increase the heat exchange area with the pull wheel 1, while ensuring that the outlet of the cooling component 5 is close to the ratchet 2 to guarantee the cooling effect. The filter screen 7 can filter out impurities in the coolant. When the opening on the outer periphery of the cooling component 5 is the inlet, the filter screen 7 will not clog the cavity tube 6.

[0029] After the edge-pulling machine is equipped with the edge-pulling wheel 1, after a large number of actual production experiments, under the premise of meeting the industrial production volume, for ultra-thin glass with a thickness of 2mm, the axial width of the flattening truncated cone 3 should not be less than 40mm. Only under the premise of completely flattening the wrinkles can the purpose of cooling and shaping the edge of the glass be achieved.

[0030] The radius difference between the flattening frustum 3 and the ratchet 2 should not exceed 1.5mm to ensure that the ultra-thin glass can be pulled away without breaking, while flattening and cooling the edge of the ultra-thin glass.

[0031] The cooling component 5 is equipped with a flow equalization plate 8 that is adapted to its opening, which can achieve the effect of flow distribution and improve cooling efficiency.

[0032] Preferably, the opening of the cooling component 5 is a liquid outlet, so as to ensure that the coolant at the lowest possible temperature comes into contact with the inner wall of the ratchet 2 and the flattened truncated cone 3 as quickly as possible, thus achieving a better cooling effect.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rim-pulling wheel for an ultra-thin glass substrate, comprising a rim-pulling wheel (1), wherein at least one ring of ratchet teeth (2) is provided on the outer peripheral surface of the rim-pulling wheel (1), characterized in that: The outer circumferential surface of the edging wheel (1) is also provided with a flattening truncated cone (3), the diameter of which is smaller than the diameter of the ratchet (2). A cooling accelerator (5) is provided on the inner side of the cooling chamber (4) of the edging wheel (1). Multiple openings corresponding to the ratchet (2) are evenly distributed on the outer circumference of the cooling accelerator (5). A cavity tube (6) communicating with the cooling accelerator (5) is provided on the outer side of the cooling accelerator (5). The axial width of the leveling frustum (3) is not less than 40mm; The radius difference between the flattened truncated cone (3) and the ratchet (2) is no greater than 1.5 mm.

2. The edge-pulling wheel for an ultra-thin glass substrate according to claim 1, characterized in that: The cooling component (5) is a disc-shaped part adapted to the side of the cooling cavity (4), and the outer periphery of the cooling component (5) is covered with at least one layer of filter screen (7).

3. The edge-pulling wheel for an ultra-thin glass substrate according to claim 1, characterized in that: The cavity tube (6) is rotatably connected to the cooling component (5).

4. The edge-pulling wheel for an ultra-thin glass substrate according to claim 1, characterized in that: The cooling component (5) is provided with a flow equalization plate (8) that is adapted to its opening.

5. The edge-pulling wheel for an ultra-thin glass substrate according to claim 1, characterized in that: The opening of the cooling component (5) is a liquid outlet.

6. The edge-pulling wheel for an ultra-thin glass substrate according to any one of claims 1-5, characterized in that: A rotating joint (9) is installed on the flange of the pull wheel (1), and a conduit (10) adapted to the cavity tube (6) is provided on the rotating joint (9).

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