Device and method for moving traction short roller on line

By designing a device for moving the traction short rollers online, and using sliding components and adjustment devices to achieve accurate adjustment of the short roller positions, the problem of insufficient production stability in traditional methods is solved, ensuring stable production and high-quality output of substrate glass.

CN119707252APending Publication Date: 2025-03-28虹阳显示(咸阳)科技有限公司
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Patent Information

Application Number
CN202411929019.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

When adjusting the position of the short rollers in the traditional method, production stability is insufficient, resulting in a decrease in the quality of the substrate glass, a decrease in production efficiency, an increase in the risk of equipment damage, an increase in safety risks and an increase in costs.

Method used

A device for moving the traction short rollers online is designed, including sliding components, fixing devices, mounting plates, pointers, rulers, adjustment devices and symmetrically arranged traction short rollers. By moving the mounting plates through the adjustment device, the pointer position is reset to zero, thereby achieving accurate overlap between the substrate glass and the center line of the annealing furnace identification.

Benefits of technology

The stable clamping and online precise adjustment of the substrate glass are achieved, the production stability is optimized, the stable production of the substrate glass is ensured, and deformation or stress problems caused by uneven stress are avoided.

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Abstract

The invention discloses a device and a method for moving a traction short roller on line, and belongs to the technical field of traction short rollers. The device for moving the traction short rollers on line comprises the sliding assembly, the fixing device, the mounting plate, the pointer, the ruler, the adjusting device and the traction short rollers which are symmetrically arranged, stable clamping and on-line accurate adjustment of substrate glass are achieved, the problem that in a traditional method, due to adjustment of the positions of the short rollers, the production stability is insufficient is solved, and the production efficiency is improved. And stable production of the substrate glass is ensured. Wherein the short traction rollers and the mounting plates are symmetrically arranged, so that the stability and the uniform stress of the substrate glass in the clamping process are ensured, and the problem of deformation or stress caused by non-uniform stress is avoided; through the arrangement of the sliding assembly, the fixing device and the adjusting device, the short roller can flexibly move; and a visual feedback system is formed by the pointer and the scale, so that an operator can quickly and accurately judge and adjust the position of the short roller.
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Description

Technical Field

[0001] The invention relates to the technical field of traction stub rollers, and in particular to a device for moving traction stub rollers online. Background Art

[0002] Substrate glass, as the core material in high-tech fields such as semiconductor devices and flat panel display devices, is usually made of quartz glass or borosilicate glass as the substrate and is processed through precision manufacturing. Its surface flatness, excellent optical properties, high mechanical strength and a series of excellent physical properties make it an indispensable key material in many industries such as electronics, information, communications, biology, and medical care. Especially in high-tech fields such as semiconductor chips, flat panel displays, and optical fiber devices, the application of substrate glass is indispensable. It has won wide recognition for its highly flat surface, high optical transparency, uniform thickness, excellent chemical stability and extremely low thermal expansion coefficient.

[0003] In the production process of substrate glass, every step is crucial. The glass powder is melted at high temperature in the pool furnace and converted into liquid glass. Subsequently, the liquid glass slowly flows into the overflow brick of the muffle furnace through the delicate channel made of platinum, and then flows down from both sides of the overflow to converge into a piece of glass at the tip of the brick. It is pulled out through the edge drawing machine to control a certain width, and finally pulled down vertically by the traction short roller to form a flat glass plate. Under the process of the forming furnace, the glass plate is further stabilized and shaped. Then, in the annealing furnace, the traction system equipped with a drive device firmly clamps the substrate glass and slowly pulls it down to gradually cool and solidify it. For large-sized and high-generation substrate glass, more sophisticated short rollers are used for traction to ensure its stability and precision. During the traction process, the control board width is clamped and pulled out by the edge drawing machine, and then vertically pulled down by multiple groups of short rollers to form a glass ribbon, and finally the substrate glass of a fixed height is cut by cross-cutting.

[0004] During the annealing and pulling process of the substrate glass, the overlap between the short roller and the theoretical center line of the substrate glass flowing down from the overflow brick (also the center line of the annealing furnace mark) is crucial. Accurate overlap between the short roller and the theoretical center line can ensure that the substrate glass is evenly stressed during the annealing and pulling process, avoiding unnecessary stress or deformation, thereby ensuring the flatness, thickness uniformity and optical performance of the final product. Once the short roller does not overlap with the theoretical center line, it will bring multiple risks such as reduced product quality, reduced production efficiency, increased risk of equipment damage, increased safety hazards and increased costs.

[0005] However, the asbestos material commonly used in short rollers will inevitably wear out during long-term operation, which will cause the relative position of the short roller and the substrate glass to shift, greatly weakening the stability of the clamping. This shift not only poses a serious threat to the quality of the glass substrate, but may also cause irreparable damage to the production equipment. However, the traditional adjustment method has obvious shortcomings. Operators usually use a handheld square to perform visual alignment. This process is not only time-consuming and laborious, but also greatly delays production progress and has an adverse effect on production stability. What's worse, due to subjective differences between different operators, there are often deviations in the measurement data, resulting in inconsistent adjustment results and low measurement accuracy, further hindering production stability.

[0006] Therefore, how to break through the existing technical bottleneck and achieve online precise adjustment of the short roller position has become a technical problem that technical personnel in this field need to solve urgently. Summary of the invention

[0007] The object of the present invention is to provide a device and method for online moving traction stub rollers, aiming to solve the problem of insufficient production stability caused by adjusting the position of stub rollers using the traditional method.

[0008] The present invention solves the above technical problems through the following technical solutions: A device for moving a traction short roller online comprises a sliding assembly, a fixing device, a mounting plate, a pointer, a scale, an adjusting device and symmetrically arranged traction short rollers; the traction short roller comprises a roller wheel and a roller shaft, the roller wheel is connected to the first end of the roller shaft, the second end of the roller shaft is connected to the fixing device, the roller shaft is arranged on the sliding assembly via the mounting plate, and a substrate glass is clamped between the two roller wheels; a pointer is fixed to the end of the mounting plate away from the roller wheel, a scale is fixed to the end of the sliding assembly away from the roller wheel, the zero position of the scale is arranged at the center position, overlapping with the center line of the annealing furnace mark of the substrate glass, and an adjusting device is fixedly connected to the side wall of the mounting plate, and is used for driving the roller shaft to move by adjusting the mounting plate until the pointer position returns to zero.

[0009] A further improvement of the present invention is that the sliding assembly comprises a support plate and a slide rail, the slide rail is arranged on the support plate, the moving direction of the slide rail is perpendicular to the downward pulling direction of the substrate glass, and the roller is arranged on the slide rail via a mounting plate.

[0010] A further improvement of the present invention is that the zero position of the ruler is 3 cm on both sides.

[0011] A further improvement of the present invention is that the adjusting device comprises an adjusting connecting rod and a jackscrew, one end of the adjusting connecting rod is fixedly connected to the side wall of the mounting plate, and the other end is connected to the jackscrew.

[0012] A further improvement of the present invention is that the movable end of the jack screw is provided with a handle which is convenient for manual rotation.

[0013] A further improvement of the present invention is that a counterweight assembly is provided on the adjusting device to balance the force of clamping the substrate glass.

[0014] A further improvement of the present invention is that the counterweight assembly and the adjusting device are detachably connected.

[0015] A further improvement of the present invention is that it also includes a motor, which is connected to the roller shaft.

[0016] A further improvement of the present invention is that the pointer is made of stainless steel.

[0017] The present invention also provides a method for moving the traction short roller online, using the above device, comprising the following steps: When the pointer deviates from the zero position of the scale, the mounting plate is moved by the adjustment device until the pointer position returns to zero, and the mounting plate drives the roller to move, so that the substrate glass clamped by the traction short roller overlaps the center line of the annealing furnace mark.

[0018] Compared with the prior art, the positive and progressive effects of the present invention are: The device for online moving traction short rollers provided by the present invention includes a sliding assembly, a fixing device, a mounting plate, a pointer, a scale, an adjustment device, and symmetrically arranged traction short rollers, which not only realizes stable clamping and online precise adjustment of the substrate glass, but also optimizes the problem of insufficient production stability caused by the adjustment of the short roller position in the traditional method, and ensures the stable production of the substrate glass. Among them, the symmetrically arranged traction short rollers and the mounting plate ensure the stability and uniform force of the substrate glass during the clamping process, avoiding deformation or stress problems caused by uneven force; the short rollers can be flexibly moved by setting the sliding assembly, the fixing device and the adjustment device; the pointer and the scale constitute an intuitive visual feedback system, which is convenient for the operator to quickly and accurately judge and adjust the position of the short roller.

[0019] Furthermore, the combination of the support plate and the slide rail provides a stable moving track, ensuring the stability and accuracy of the short roller during movement; the moving direction of the slide rail is perpendicular to the downward pull-down direction of the substrate glass, so that adjusting the position of the short roller will not affect the normal production process of the substrate glass.

[0020] Furthermore, the scale of the ruler is symmetrically arranged along the zero position, which is convenient for the operator to quickly judge the direction and distance of the short roller deviating from the center line. The scale range of 3 cm on both sides provides sufficient adjustment space while ensuring the accuracy of the adjustment.

[0021] Furthermore, the adjustment device includes an adjusting connecting rod and a top screw. The combination of the adjusting connecting rod and the top screw makes the adjustment process more flexible and convenient. The mounting plate can be moved by manually rotating the top screw, thereby driving the roller shaft to move, simplifying the adjustment process and reducing the difficulty of operation.

[0022] Furthermore, the movable end of the jack screw is provided with a handle that is easy to rotate manually, so that the operator can complete the adjustment work more easily.

[0023] Furthermore, the counterweight assembly provided on the adjustment device is used to balance the force of clamping the substrate glass, thereby avoiding damage to the substrate glass due to excessive force and insufficient clamping force due to too light force, thereby making the short roller more stable during the clamping process.

[0024] Furthermore, the counterweight assembly and the adjusting device are detachably connected to facilitate replacement or adjustment according to actual needs.

[0025] Furthermore, the connection design between the motor and the roller shaft ensures the effective transmission of power and the stable operation of the traction short roller.

[0026] Furthermore, the stainless steel material has excellent properties such as corrosion resistance and high temperature resistance, ensuring the stability and accuracy of the pointer during long-term use.

[0027] The method for online moving the traction short roller provided by the present invention moves the mounting plate by an adjusting device, and the step of returning the pointer position to zero is simple and clear, easy to operate, and ensures the precise overlap of the substrate glass and the center line of the annealing furnace mark, thereby improving the stability of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings in the specification are used to provide further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] Figure 1 It is a schematic diagram of the structure of the device for online moving traction short roller of the present invention; Figure 2 It is a detailed schematic diagram of the scale of the present invention; 1 is a traction short roller, 1-1 is a roller wheel, 1-2 is a roller shaft; 2 is a sliding assembly, 2-1 is a support plate, 2-2 is a slide rail; 3 is a fixing device; 4 is a substrate glass; 5 is a mounting plate; 6 is a pointer; 7 is a scale; 8 is an adjusting device, 8-1 is an adjusting connecting rod, 8-2 is a top screw, 8-3 is a counterweight assembly; 9 is a motor. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does 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. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, which are intended to explain the present invention rather than to limit it.

[0036] See also Figure 1, a device for moving a traction short roller online, comprising a sliding component 2, a fixing device 3, a mounting plate 5, a pointer 6, a scale 7, an adjusting device 8 and a symmetrically arranged traction short roller 1; the traction short roller 1 comprises a roller 1-1 and a roller shaft 1-2, the roller 1-1 is connected to the first end of the roller shaft 1-2, the second end of the roller shaft 1-2 is connected to the fixing device 3, the roller shaft 1-2 is arranged on the sliding component 2 via the mounting plate 5, and a substrate glass 4 is clamped between the two rollers 1-1; a pointer 6 is fixed to the end of the mounting plate 5 away from the roller 1-1, a scale 7 is fixed to the end of the sliding component 2 away from the roller 1-1, the zero position of the scale 7 is set at the center position, overlapping with the annealing furnace mark center line of the substrate glass 4, and the adjusting device 8 is fixedly connected to the side wall of the mounting plate 5, which is used to drive the roller shaft 1-2 to move by adjusting the mounting plate 5 until the position of the pointer 6 returns to zero.

[0037] The device for online moving traction short rollers provided by the present invention includes a sliding assembly, a fixing device, a mounting plate, a pointer, a scale, an adjustment device, and symmetrically arranged traction short rollers, which not only realizes stable clamping and online precise adjustment of the substrate glass, but also optimizes the problem of insufficient production stability caused by the adjustment of the short roller position in the traditional method, and ensures the stable production of the substrate glass. Among them, the symmetrically arranged traction short rollers and the mounting plate ensure the stability and uniform force of the substrate glass during the clamping process, avoiding deformation or stress problems caused by uneven force; the short rollers can be flexibly moved by setting the sliding assembly, the fixing device and the adjustment device; the pointer and the scale constitute an intuitive visual feedback system, which is convenient for the operator to quickly and accurately judge and adjust the position of the short roller.

[0038] Specifically, the sliding assembly 2 includes a support plate 2-1 and a slide rail 2-2. The slide rail 2-2 is arranged on the support plate 2-1. The moving direction of the slide rail 2-2 is perpendicular to the downward pull-down direction of the substrate glass 4. The roller shaft 1-2 is arranged on the slide rail 2-2 via the mounting plate 5. The combination of the support plate and the slide rail provides a stable moving track, ensuring the stability and accuracy of the short roller during the movement. The moving direction of the slide rail is perpendicular to the downward pull-down direction of the substrate glass, so that the normal production process of the substrate glass will not be affected when adjusting the position of the short roller.

[0039] Specifically, the zero position of the ruler 7 is 3 cm on each side; the scale of the ruler is symmetrically arranged along the zero position, which is convenient for the operator to quickly judge the direction and distance of the short roller deviating from the center line. The scale range of 3 cm on each side provides sufficient adjustment space while ensuring the accuracy of the adjustment.

[0040] Specifically, the adjusting device 8 includes an adjusting connecting rod 8-1 and a top screw 8-2. One end of the adjusting connecting rod 8-1 is fixedly connected to the side wall of the mounting plate 5, and the other end is connected to the top screw 8-2. The adjusting device includes an adjusting connecting rod and a top screw. The combination of the adjusting connecting rod and the top screw makes the adjustment process more flexible and convenient. The mounting plate can be moved by manually rotating the top screw, thereby driving the roller shaft to move, which simplifies the adjustment process and reduces the difficulty of operation.

[0041] Specifically, the movable end of the top screw 8-2 is provided with a handle for easy manual rotation; the movable end of the top screw is provided with a handle for easy manual rotation, so that the operator can complete the adjustment work more easily.

[0042] Specifically, a counterweight assembly 8-3 is provided on the adjusting device 8, which is used to balance the force of clamping the substrate glass 4; the counterweight assembly provided on the adjusting device is used to balance the force of clamping the substrate glass, avoiding damage to the substrate glass due to excessive force and insufficient clamping force due to too light force, thereby making the short roller more stable during the clamping process.

[0043] Specifically, the counterweight assembly 8 - 3 is detachably connected to the adjustment device 8 , so as to facilitate replacement or adjustment according to actual needs.

[0044] Specifically, it also includes a motor 9, which is connected to the roller shaft 1-2; the connection design between the motor and the roller shaft ensures the effective transmission of power and the stable operation of the traction short roller.

[0045] Specifically, the pointer 6 is made of stainless steel; stainless steel has excellent properties such as corrosion resistance and high temperature resistance, which ensures the stability and accuracy of the pointer during long-term use.

[0046] Based on the same inventive concept, the present invention also provides a method for moving a traction short roller online, characterized in that the method adopts the above-mentioned device and comprises the following steps: When the pointer 6 deviates from the zero position of the scale 7, the mounting plate 5 is moved by the adjusting device 8 until the pointer 6 returns to zero, and the mounting plate 5 drives the roller shaft 1-2 to move, so that the substrate glass 4 clamped by the traction short roller 1 overlaps with the center line of the annealing furnace mark.

[0047] As a specific embodiment of the present invention, see Figure 2 , a device for moving a traction short roller online, comprising a sliding assembly 2, a fixing device 3, a mounting plate 5, a pointer 6, a scale 7, an adjusting device 8 and symmetrically arranged traction short rollers 1; The traction short roller 1 comprises a roller wheel 1-1 and a roller shaft 1-2, the roller wheel 1-1 is connected to a first end of the roller shaft 1-2, the second end of the roller shaft 1-2 is connected to a fixing device 3, and a substrate glass 4 is clamped between the two roller wheels 1-1; The sliding assembly 2 includes a support plate 2-1 and a slide rail 2-2. The slide rail 2-2 is arranged on the support plate 2-1. The moving direction of the slide rail 2-2 is perpendicular to the downward pulling direction of the substrate glass 4. The roller 1-2 is arranged on the slide rail 2-2 via a mounting plate 5. A stainless steel pointer 6 is fixed to one end of the mounting plate 5 away from the roller 1-1. A scale 7 is fixed to one end of the sliding assembly 2 away from the roller 1-1. The zero position of the scale 7 is set at the center position, overlapping with the center line of the annealing furnace mark of the substrate glass 4, and the zero position of the scale 7 is 3 cm on both sides. The adjusting device 8 includes an adjusting connecting rod 8-1 and a top screw 8-2. One end of the adjusting connecting rod 8-1 is fixedly connected to the side wall of the mounting plate 5, and the other end is connected to the top screw 8-2, which is used to drive the roller 1-2 to move by adjusting the mounting plate 5 until the position of the pointer 6 returns to zero; the movable end of the top screw 8-2 is provided with a handle for easy manual rotation; the adjusting connecting rod 8-1 is detachably connected to a counterweight assembly 8-3 for balancing the force of clamping the substrate glass 4; It also includes a motor 9, which is connected to the roller shaft 1-2.

[0048] When in use, the position of the mounting plate 5 is controlled by adjusting the length of the top screw 8-2, and the data on the scale 7 corresponding to the pointer 6 made of stainless steel is read to see if it is zero, so that the roller 1-1 clamps the substrate glass 4 to keep it in a vertical line, thereby achieving the purpose of stable production.

[0049] The method for online moving the traction short roller provided by the present invention moves the mounting plate by an adjusting device, and the step of returning the pointer position to zero is simple and clear, easy to operate, and ensures the precise overlap of the substrate glass and the center line of the annealing furnace mark, thereby improving the stability of production.

[0050] Finally, it should be noted that the above-listed embodiments exist only as one or more specific forms of expression of the technical solution of the present invention. Their purpose is to clearly explain the concept, principle and application of the present invention through specific examples, and it is by no means intended to limit the protection scope of the present invention to these specific embodiments. In fact, the real value of the present invention lies in the technical ideas and innovations it proposes, rather than its form of expression or means of implementation.

[0051] For ordinary technicians in the relevant technical field, after in-depth reading and understanding of the technical solution of the present invention, they are fully capable of making various forms of changes, modifications or equivalent substitutions to the specific implementation methods of the invention based on their own professional knowledge and skills. These changes may include but are not limited to: adjusting the value range of technical parameters, optimizing algorithm processes to improve efficiency, replacing some technical components to achieve better compatibility or reduce costs, etc. As long as these changed technical solutions still substantially maintain the technical features claimed for protection by the original invention, that is, they can still achieve the core functions and effects of the present invention, then these changes should be deemed to fall within the scope of protection of the pending claims of the present invention.

[0052] In addition, with the continuous progress and development of technology, new technical means and methods continue to emerge, which also provides broad space for further improvement and perfection of the present invention. Therefore, the protection scope of the present invention should also include those reasonably foreseeable improvements and extensions based on the existing technology. As long as these improvements and extensions do not deviate from the basic principles and core concepts of the present invention, they should be regarded as equivalents of the present invention and are also protected by patent rights.

Claims

1. A device for moving a traction short roller online, characterized in that: The invention comprises a sliding assembly (2), a fixing device (3), a mounting plate (5), a pointer (6), a scale (7), an adjusting device (8), and a symmetrically arranged traction short roller (1); the traction short roller (1) comprises a roller wheel (1-1) and a roller shaft (1-2); the roller wheel (1-1) is connected to a first end of the roller shaft (1-2); the second end of the roller shaft (1-2) is connected to the fixing device (3); the roller shaft (1-2) is arranged on the sliding assembly (2) via the mounting plate (5); a substrate glass (4) is clamped between the two roller wheels (1-1); a pointer (6) is fixed to one end of the mounting plate (5) away from the roller wheel (1-1); a scale (7) is fixed to one end of the sliding assembly (2) away from the roller wheel (1-1); the zero position of the scale (7) is arranged at a central position and overlaps with the center line of the annealing furnace mark of the substrate glass (4); the adjusting device (8) is fixedly connected to the side wall of the mounting plate (5) and is used for driving the roller shaft (1-2) to move by adjusting the mounting plate (5) until the position of the pointer (6) returns to zero.

2. The device for online moving traction short roller according to claim 1 is characterized in that: The sliding assembly (2) comprises a support plate (2-1) and a slide rail (2-2); the slide rail (2-2) is arranged on the support plate (2-1); the moving direction of the slide rail (2-2) is perpendicular to the downward pulling direction of the substrate glass (4); and the roller shaft (1-2) is arranged on the slide rail (2-2) via a mounting plate (5).

3. The device for online moving traction short roller according to claim 1, characterized in that: The ruler (7) has 3 cm on either side of the zero position.

4. The device for online moving traction short roller according to claim 1 is characterized in that: The adjusting device (8) comprises an adjusting connecting rod (8-1) and a top screw rod (8-2); one end of the adjusting connecting rod (8-1) is fixedly connected to the side wall of the mounting plate (5), and the other end is connected to the top screw rod (8-2).

5. The device for online moving traction short roller according to claim 4, characterized in that: The movable end of the jack screw (8-2) is provided with a handle which is convenient for manual rotation.

6. The device for online moving traction short roller according to claim 1, characterized in that: A counterweight assembly (8-3) is provided on the adjustment device (8) for balancing the force of clamping the substrate glass (4).

7. The device for online moving traction short roller according to claim 6, characterized in that: The counterweight assembly (8-3) and the adjusting device (8) are detachably connected.

8. The device for online moving traction short roller according to claim 1, characterized in that: It also includes a motor (9), which is connected to the roller shaft (1-2).

9. The device for online moving traction short roller according to claim 1, characterized in that: The pointer (6) is made of stainless steel.

10. A method for moving a traction short roller online, characterized in that: The device according to any one of claims 1 to 9 comprises the following steps: When the pointer (6) deviates from the zero position of the scale (7), the mounting plate (5) is moved by the adjusting device (8) until the position of the pointer (6) returns to zero, and the mounting plate (5) drives the roller shaft (1-2) to move, so that the substrate glass (4) clamped by the traction short roller (1) overlaps with the center line of the annealing furnace mark.