A method of reducing the length of lateral red bars
By breaking and tilting the red strip glass on the acceleration roller conveyor of the float glass cold end conveyor line, the problem of small-width red strips being difficult to convey to the middle drop plate roller conveyor is solved, achieving efficient conveying of red strips and cost savings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 咸宁南玻玻璃有限公司
- Filing Date
- 2024-05-30
- Publication Date
- 2026-07-31
AI Technical Summary
In existing technologies, it is difficult to transport narrow-width red strip glass to the intermediate drop roller conveyor on the cold end production line of float glass, resulting in drop-off in non-designated areas and increased costs.
On the acceleration roller conveyor of the float glass cold end conveyor line, the red strip glass is broken off and its online movement speed is greater than that of the whole glass sheet. The red strip glass is tilted by the variable diameter roller structure, with an tilt angle of 10 to 75°, so as to realize the acceleration and tilting conveying of the red strip glass.
The red strip glass can smoothly enter the intermediate drop roller conveyor, avoiding falling into the gap between the rollers, reducing the drop rate in non-designated areas, and reducing cost waste.
Smart Images
Figure CN118458366B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of float glass processing technology and relates to a method for reducing the length of the transverse red stripe. Background Technology
[0002] In the cold-end production process of float glass, after the glass strip is annealed, it enters the cutting area. The cutting machine cuts the glass strip into glass blocks of different sizes according to the optimized system layout. The cut glass blocks are transported to the designated position by the main breaking, accelerated separation, edge cleaning and trimming, longitudinal top splitting, and intermediate drop plate conveyor rollers through the wire control system.
[0003] The cold-end optimization system will optimize defects that cannot meet quality requirements into small red stripes and discard them. All discarded board signals are transported to the intermediate drop plate for recycling through the transmission rollers via the wire control system. In other words, when the defective area is very small, in order to drop the board at the designated position, a relatively wide piece of glass needs to be broken off (serious waste). If the broken width is too small, it is easy to fall into the gap between the edge clearing roller and the longitudinal top and longitudinal splitting roller. If all the edge clearing roller and longitudinal top and longitudinal splitting rollers are densely distributed, it will cause a significant increase in cost.
[0004] The mainstream design of conveyor rollers in domestic and international float glass cold end production lines is 108mm roller diameter, 145mm rubber ring diameter, and 250mm roller spacing. Generally speaking, if the width of the red strip is less than 540mm, it is easy for non-designated areas to fall onto the glass, making it impossible to reach the middle drop roller for recycling. Summary of the Invention
[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by providing a method for reducing the length of the transverse red stripe. The technical problem to be solved by this invention is how to transport glass with a small width red stripe to the intermediate drop plate roller conveyor.
[0006] The objective of this invention can be achieved through the following technical solution: A method for reducing the length of the transverse red stripe, characterized in that the float glass cold end conveyor line includes an inlet roller conveyor, an acceleration roller conveyor, an edge cleaning roller conveyor, a longitudinal top and longitudinal split roller conveyor, and an intermediate drop roller conveyor connected in sequence. The method for reducing the length of the transverse red stripe includes the following steps: A. Breaking the red stripe glass at the beginning of the acceleration roller conveyor with a smaller roller spacing; B. Accelerating the conveying of the red stripe glass so that the online moving speed of the red stripe glass is greater than the moving speed of the subsequent whole glass; C. Online controlling the broken red stripe glass to be in an inclined state on the acceleration roller conveyor, with an inclination angle of 10-75° between the red stripe glass and the conveying direction of the acceleration roller conveyor.
[0007] Furthermore, the method for achieving online accelerated movement and tilting of the red strip glass is as follows: the acceleration roller conveyor includes several alternating transmission rollers. Each transmission roller includes a roller shaft, several fixed-sizing rollers fixed on the roller shaft, and two variable-sizing rollers. The two variable-sizing rollers are symmetrically distributed on both sides of the midpoint of the roller shaft, and the variable-sizing rollers are located at the fifth division of the roller shaft. Each variable-sizing roller includes two symmetrically distributed clamping roller discs and a suspension wheel located between the two clamping roller discs. The outer diameter of the suspension wheel is larger than the outer diameter of the clamping roller discs. The clamping roller discs are fixed on the roller shaft. The suspension wheel has a through hole in the middle with a diameter larger than that of the roller shaft. The roller shaft passes through the through hole of the suspension wheel. The suspension wheel has a magnetic ring coaxial with the through hole. The clamping roller disc has an iron ring of the same specifications as the magnetic ring. When the magnetic ring attracts the iron ring, the suspension wheel can be coaxial with the clamping roller disc. The outer diameter of the suspension wheel of one variable-sizing roller on the same transmission roller is larger than the outer diameter of the suspension wheel of the other variable-sizing roller.
[0008] When the continuous sheet of glass from the float glass furnace moves online to the acceleration roller conveyor, the defective areas of the glass are detected there. After the defective glass is detected, it is broken off, resulting in red-striped glass. Under the weight of the sheet of glass, the diameter-changing roller cannot change its diameter because the suspension wheel is always in an eccentric state under pressure. The glass is actually supported by the clamping roller, which has the same outer diameter as the sizing roller. Therefore, this structure cannot accelerate the entire sheet of glass, but can only accelerate glass sheets with smaller weights, because the smaller glass sheets cannot overcome or completely overcome the magnetic attraction between the suspension wheel and the clamping roller, which tends to be coaxial.
[0009] This solution employs a relatively simple method to achieve accelerated movement and online tilting of the red strip glass. Specifically, the broken red strip glass is lightweight and cannot press the suspension wheel to the point where the variable diameter roller is in an eccentric state. The actual support for the red strip glass is the outer circumference of the suspension wheel. With the roller shaft rotation speed remaining constant, the increased diameter of the variable diameter roller accelerates the movement speed of the red strip glass supported by it, thus accelerating its movement and causing it to gradually separate from the whole glass panel. At the same time, because the outer diameter of the suspension wheel of one variable diameter roller on the same drive roller is larger than that of the other variable diameter roller, the red strip glass on the side corresponding to the larger diameter roller moves faster than on the other side, thus achieving the tilting of the red strip glass. The tilted red strip glass is no longer parallel to the roller track, so it will not fall into the gap between the rollers of the acceleration roller track, the edge clearing roller track, and the longitudinal top and longitudinal splitting roller track, and can smoothly enter the intermediate drop plate roller track.
[0010] It is easy to see that if the red strip glass is wider, it will not be able to achieve a larger tilt or a faster plate ejection. If the red strip glass is narrower, the tilt angle will be larger and the plate ejection speed will be faster. Of course, this is a general rule, not a linear correspondence. It is basically consistent with the plate ejection requirements of the red strip glass and can adapt to the width of the red strip glass to achieve the ideal plate ejection requirements. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of a float glass cold end conveyor line.
[0012] Figure 2 This is a schematic diagram of the accelerating roller conveyor and the roller conveyors on both sides.
[0013] Figure 3 This is a schematic diagram of the structure of the red strip glass after it breaks at the acceleration roller.
[0014] Figure 4 This is a schematic diagram of the tilted state of the red striped glass at the acceleration roller conveyor.
[0015] Figure 5 This is a schematic diagram of the structure of one of the drive rollers on the acceleration roller conveyor.
[0016] Figure 6 yes Figure 5 A magnified view of part A in the middle.
[0017] Figure 7 yes Figure 5 A magnified view of part B in the middle.
[0018] Figure 8 This is a schematic diagram of the eccentric and concentric states of the variable diameter roller (the left figure shows the eccentric state).
[0019] In the diagram, 1 is the drive roller; 2 is the roller shaft; 3 is the sizing roller; 4 is the variable diameter roller; 41 is the clamping roller; 42 is the suspension wheel; 43 is the perforation; 44 is the magnetic ring; and 45 is the iron ring. Detailed Implementation
[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.
[0021] like Figures 1-8 As shown, the float glass cold end conveyor line includes sequentially connected inlet rollers, acceleration rollers, edge cleaning rollers, longitudinal top and longitudinal split rollers, and intermediate drop rollers. The method to reduce the length of the transverse red strip includes the following steps: A. Break the red strip glass at the beginning of the acceleration roller with a small roller spacing; B. Accelerate the conveying of the red strip glass so that the online moving speed of the red strip glass is greater than the moving speed of the whole glass behind it; C. Control the broken red strip glass to be in an inclined state online on the acceleration roller, with the inclination angle being 10-75° between the red strip glass and the conveying direction of the acceleration roller.
[0022] The method for achieving online accelerated movement and tilting of the red-striped glass is as follows: The acceleration roller conveyor includes several alternating drive rollers 1. Each drive roller 1 includes a roller shaft 2, several fixed-sizing rollers 3 and two variable-sizing rollers 4 fixed on the roller shaft 2. The two variable-sizing rollers 4 are symmetrically distributed on both sides of the midpoint of the roller shaft 2, and are located at the five equal division points of the roller shaft 2. Each variable-sizing roller 4 includes two symmetrically distributed clamping roller discs 41 and a suspension wheel 42 located between the two clamping roller discs 41. The outer diameter of the suspension wheel 42 is larger than the outer diameter of the clamping roller discs 41, clamping... The roller disc 41 is fixed on the roller shaft 2. The suspension wheel 42 has a through hole 43 in the middle with a diameter larger than that of the roller shaft 2. The roller shaft 2 passes through the through hole 43 of the suspension wheel 42. The suspension wheel 42 has a magnetic ring 44 coaxial with the through hole 43. The clamping roller disc 41 has an iron ring 45 of the same specifications as the magnetic ring 44. When the magnetic ring 44 attracts the iron ring 45, the suspension wheel 42 can be coaxial with the clamping roller disc 41. The outer diameter of the suspension wheel 42 of one of the variable diameter rollers 4 on the same transmission roller 1 is larger than the outer diameter of the suspension wheel 42 of the other variable diameter roller 4.
[0023] When the continuous whole-plate glass from the float glass furnace moves online to the acceleration roller conveyor, the defective locations of the glass are detected there. After the defective glass is detected, it is broken off, i.e., the red stripe glass. Under the weight of the whole-plate glass, the diameter-changing roller 4 cannot change its diameter. This is because the suspension wheel 42 is always in an eccentric state under pressure. The actual support for the glass is the clamping roller 41. The outer diameter of the clamping roller 41 is the same as that of the sizing roller 3. Therefore, this structure cannot accelerate the whole-plate glass, but can only accelerate glass plates with smaller weights, because the glass plates with smaller weights cannot overcome or completely overcome the magnetic attraction between the suspension wheel 42 and the clamping roller 41, which tends to be coaxial.
[0024] This solution employs a relatively simple method to achieve accelerated movement and online tilting of the red strip glass. Specifically, the broken red strip glass is lightweight and cannot press the suspension wheel 42 to the eccentric state of the variable diameter roller 4. The actual support for the red strip glass is the outer circumference of the suspension wheel 42. With the rotational speed of the roller shaft 2 remaining constant, the increased diameter of the variable diameter roller 4 accelerates the movement of the red strip glass supported by the variable diameter roller 4, thus accelerating the movement of the red strip glass and causing it to gradually separate from the whole plate of glass. At the same time, since the outer diameter of the suspension wheel 42 of one of the variable diameter rollers 4 on the same transmission roller 1 is larger than that of the suspension wheel 42 of the other variable diameter roller 4, the red strip glass on the side corresponding to the larger diameter variable diameter roller 4 moves faster than the other side, thus achieving the tilting of the red strip glass. The tilted red strip glass is no longer parallel to the roller track, so it will not fall into the gap between the rollers of the acceleration roller track, the edge clearing roller track, and the longitudinal top and longitudinal splitting roller track, and can smoothly enter the intermediate drop plate roller track.
[0025] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.
Claims
1. A method of reducing the length of transverse red bars, characterized by, The float glass cold end conveyor line includes sequentially connected inlet rollers, acceleration rollers, edge cleaning rollers, longitudinal top and longitudinal split rollers, and intermediate drop rollers. The method to reduce the length of the transverse red strip includes the following steps: A. Breaking the red strip glass at the beginning of the acceleration rollers with smaller roller spacing; B. Accelerating the conveying of the red strip glass so that its online moving speed is greater than the moving speed of the subsequent whole-plate glass; C. Online control of the broken red strip glass on the acceleration rollers to maintain an inclined state, with an inclination angle of 10° to 75° between the red strip glass and the conveying direction of the acceleration rollers. The method for achieving online accelerated movement and tilting of the red strip glass is as follows: the acceleration roller track includes several alternating transmission rollers (1), each transmission roller (1) including a roller shaft (2), several fixed-diameter rollers (3) fixed on the roller shaft (2), and two variable-diameter rollers (4). The two variable-diameter rollers (4) are symmetrically distributed on both sides of the midpoint of the roller shaft (2), and the variable-diameter rollers (4) are located at the five equal divisions of the roller shaft (2). The variable-diameter rollers (4) include two symmetrically distributed clamping roller discs (41) and a suspension wheel (42) located between the two clamping roller discs (41). The outer diameter of the suspension wheel (42) is larger than the outer diameter of the clamping roller discs (41), and the clamping roller discs (41) are fixed. Fixed on the roller shaft (2), the suspension wheel (42) has a through hole (43) with a diameter larger than that of the roller shaft (2) in the middle. The roller shaft (2) passes through the through hole (43) of the suspension wheel (42). The suspension wheel (42) has a magnetic ring (44) coaxial with the through hole (43). The clamping roller (41) has an iron ring (45) of the same size as the magnetic ring (44). When the magnetic ring (44) attracts the iron ring (45), the suspension wheel (42) can be coaxial with the clamping roller (41). The outer diameter of the suspension wheel (42) of one of the variable diameter rollers (4) on the same transmission roller (1) is larger than that of the suspension wheel (42) of the other variable diameter roller (4).