An auxiliary device for precise control of traction roller speed.

Abstract

This invention discloses an auxiliary device for precise control of traction roller speed, including a clamping roller boss surface linear velocity measuring mechanism and a glass traction speed measuring mechanism. The clamping roller boss surface linear velocity measuring mechanism includes a pair of glass strip clamping rollers and a drive unit. The output end of the drive unit is connected to the glass strip clamping rollers. A follower wheel is also provided next to the glass strip clamping rollers, and an angular velocity sensor is installed on the follower wheel. The glass traction speed measuring mechanism includes a movable base platform, on which a pair of slides slide laterally. The auxiliary device directly and accurately measures the two important process parameters—the linear velocity of the clamping roller boss surface and the traction speed of the glass strip—and then precisely adjusts the speed of each individual clamping roller based on the measured values ​​to obtain a glass strip of a predetermined thickness. This can, to some extent, eliminate the lag in glass production process adjustments and improve the accuracy of process parameter adjustments, thereby improving production stability and product yield.

Description

Technical Field

[0001] This invention relates to the field of liquid crystal glass substrate production technology, and specifically to an auxiliary device for precise control of traction roller speed. Background Technology

[0002] Currently, domestic LCD glass substrates are mainly produced using the overflow method and the pull-down method. In the multi-roller clamping technology, the paired traction rollers contact and clamp the glass strip, and the drive unit drives the two rollers to rotate in opposite directions. The two traction rollers rotating in opposite directions exert a certain traction force on the glass strip through friction, thereby enabling the glass plate to reach the predetermined thickness.

[0003] In actual production, the traction roller boss is made of asbestos pressed and sintered material. During use, the boss will experience a certain degree of wear. The degree of wear is determined by physical factors such as usage time and clamping force. Since each traction roller is driven by a separate drive unit with a servo motor as the drive source, when the process engineers actually control the traction effect of the traction roller on the glass strip, they will calculate the surface linear velocity of the boss by using the angular velocity and boss radius provided by the drive unit. Although the initial intention of the production process is to control the traction effect of the traction roller on the glass strip by the surface linear velocity of the boss, the diameter of the traction roller boss, which is constantly being worn, cannot obtain an accurate true value in real time. This leads to a lag in the adjustment of process parameters, and the process engineers cannot compensate for the relevant process parameters in time, thus affecting the process yield. Summary of the Invention

[0004] The purpose of this invention is to enable process parameters to be adjusted in a timely manner according to the state of materials produced on-site. Those skilled in the art need to provide a process and auxiliary equipment for precise control of traction roller speed, thereby finely controlling the speed of the traction roller and improving product yield. Therefore, an auxiliary equipment for precise control of traction roller speed is proposed.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] An auxiliary device for a precise control process of traction roller speed includes a clamping roller boss surface linear velocity measuring mechanism and a glass traction speed measuring mechanism;

[0007] The linear velocity measuring mechanism of the clamping roller boss includes a pair of glass strip clamping rollers and a drive unit. The output end of the drive unit is connected to the glass strip clamping rollers. A follower wheel is also provided on one side of the glass strip clamping rollers, and an angular velocity sensor is provided on the follower wheel.

[0008] The glass traction speed measuring mechanism includes a movable base platform, on which a pair of slides slide laterally. Each of the slides is equipped with a glass belt follower wheel, and a sensing component is provided on the glass belt follower wheel. A position adjustment mechanism is also provided between the slides and the base platform, and the position adjustment mechanism is used to adjust the sliding position of the slides.

[0009] As a further embodiment of the present invention: a flipping bracket is rotatably connected to the drive unit, and a second shaft is fixed at the axis of the follower wheel. The second shaft is inserted into the flipping bracket and rotates. The follower wheel can be in contact with the glass strip clamping roller through the flipping bracket.

[0010] As a further aspect of the present invention: the glass belt clamping roller includes a circular boss and a first shaft, the first shaft being fixed at the center of the circular boss.

[0011] As a further aspect of the present invention, the flipping bracket is also provided with a detachable counterweight.

[0012] As a further aspect of the present invention: a third guide rail is provided at the bottom of the base platform, and the base platform slides on the third guide rail.

[0013] As a further aspect of the present invention: a second guide rail is horizontally fixed on the base platform, and the slide table slides on the base platform via the second guide rail.

[0014] As a further aspect of the present invention: a first guide rail is also fixed on the base platform, and the position adjustment mechanism includes two independent adjustment components, which slide on the first guide rail respectively, and the ends of the two adjustment components are respectively connected to their corresponding slides.

[0015] As a further embodiment of the present invention: one of the adjustment components includes a first slider and a single connecting rod, one end of the single connecting rod being rotatably connected to the first slider, and the other end of the single connecting rod being rotatably connected to the corresponding slide table.

[0016] As a further embodiment of the present invention: another adjustment component includes a second slider, a double connecting rod and a counterweight, one end of the double connecting rod is rotatably connected to the second slider, the other end of the double connecting rod is rotatably connected to a corresponding slide, and the counterweight is mounted on the double connecting rod.

[0017] As a further aspect of the present invention: a third slider is also slidable on the first guide rail, the third slider can be positioned at the upper limit of the first guide rail by a fixing member, and an adjusting screw is also inserted on the third slider.

[0018] The beneficial effects of this invention are as follows: By using auxiliary equipment to directly and accurately measure two important process parameters—the linear velocity of the clamping roller boss surface and the traction speed of the glass strip—the rotational speed of each individual clamping roller is precisely adjusted based on the measured values, thereby obtaining a glass strip of a predetermined thickness. This approach can, to some extent, eliminate the lag in glass production process adjustments and improve the accuracy of process parameter adjustments, thereby enhancing production stability and product yield. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the clamping roller boss surface linear velocity measuring mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the glass traction speed measuring mechanism of the present invention;

[0023] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0024] In the figure: 1. Clamping roller boss surface linear velocity measuring mechanism; 101. Drive unit; 102. First shaft; 103. Circular boss; 104. Tilting bracket; 105. Second shaft; 106. Follower wheel; 107. Angular velocity sensor; 108. Counterweight seat; 2. Glass traction speed measuring mechanism; 21. Base platform; 211. First guide rail; 212. Second guide rail; 213. Third guide rail; 22. Slide table; 23. Sensing component; 241. First slider; 242. Single connecting rod; 251. Second slider; 252. Double connecting rod; 253. Counterweight block; 254. Third slider; 255. Adjusting screw; 256. Fixing component; 3. Glass belt. Detailed Implementation

[0025] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1, please refer to Figure 1-3 As shown, the present invention is an auxiliary device for a precise control process of traction roller speed, including a clamping roller boss surface linear velocity measuring mechanism 1 and a glass traction speed measuring mechanism 2;

[0027] The linear velocity measuring mechanism 1 of the clamping roller boss surface includes a pair of glass strip clamping rollers and a drive unit 101. The drive unit 101 can be a drive motor. The output end of the drive unit 101 is connected to the glass strip clamping rollers. The drive motor can drive the glass strip clamping rollers to rotate. A follower wheel 106 is also provided on one side of the glass strip clamping rollers. An angular velocity sensor 107 is provided on the follower wheel 106. A flipping bracket 104 is rotatably connected to the drive unit 101. A second shaft 105 is fixed at the axis of the follower wheel 106. The second shaft 105 is inserted into the flipping bracket 104 and rotates. The follower wheel 106 can be in contact with the glass strip clamping rollers through the flipping bracket 104. The glass strip clamping roller includes a circular boss 103 and a first shaft 102. The first shaft 102 is fixed at the axis of the circular boss 103. A detachable counterweight 108 is also provided on the flipping bracket 104. The number of counterweights 108 can be multiple.

[0028] The glass traction speed measuring mechanism 2 includes a movable base platform 21, on which a pair of slides 22 slide laterally. Each of the slides 22 is equipped with a glass belt follower wheel, and a sensing component 23 is provided on the glass belt follower wheel. The sensing component 23 may be an angular velocity sensor. A position adjustment mechanism is also provided between the slides 22 and the base platform 21. The position adjustment mechanism is used to adjust the sliding position of the slides 22.

[0029] Example 2, please refer to Figure 1-3 As shown, the present invention is an auxiliary device for a precise control process of traction roller speed, including a clamping roller boss surface linear velocity measuring mechanism 1 and a glass traction speed measuring mechanism 2;

[0030] The linear velocity measuring mechanism 1 of the clamping roller boss surface includes a pair of glass strip clamping rollers and a drive unit 101. The drive unit 101 can be a drive motor. The output end of the drive unit 101 is connected to the glass strip clamping rollers. The drive motor can drive the glass strip clamping rollers to rotate. A follower wheel 106 is also provided on one side of the glass strip clamping rollers. An angular velocity sensor 107 is provided on the follower wheel 106. A flipping bracket 104 is rotatably connected to the drive unit 101. A second shaft 105 is fixed at the axis of the follower wheel 106. The second shaft 105 is inserted into the flipping bracket 104 and rotates. The follower wheel 106 can be in contact with the glass strip clamping rollers through the flipping bracket 104. The glass strip clamping roller includes a circular boss 103 and a first shaft 102. The first shaft 102 is fixed at the axis of the circular boss 103. A detachable counterweight 108 is also provided on the flipping bracket 104. The number of counterweights 108 can be multiple.

[0031] The glass traction speed measuring mechanism 2 includes a movable base platform 21. A pair of slides 22 slide laterally on the base platform 21. Glass belt follower wheels are respectively installed on the pair of slides 22. A sensing component 23 is provided on the glass belt follower wheels. The sensing component 23 can be an angular velocity sensor. A position adjustment mechanism is also provided between the slides 22 and the base platform 21. The position adjustment mechanism is used to adjust the sliding position of the slides 22. A third guide rail 213 is provided at the bottom of the base platform 21. The base platform 21 slides on the third guide rail 213. A second guide rail 212 is fixed laterally on the base platform 21. The slides 22 slide on the base platform 21 via the second guide rail 212.

[0032] Example 3, please refer to Figure 1-4 As shown, the present invention is an auxiliary device for a precise control process of traction roller speed, including a clamping roller boss surface linear velocity measuring mechanism 1 and a glass traction speed measuring mechanism 2;

[0033] The linear velocity measuring mechanism 1 of the clamping roller boss surface includes a pair of glass strip clamping rollers and a drive unit 101. The drive unit 101 can be a drive motor. The output end of the drive unit 101 is connected to the glass strip clamping rollers. The drive motor can drive the glass strip clamping rollers to rotate. A follower wheel 106 is also provided on one side of the glass strip clamping rollers. An angular velocity sensor 107 is provided on the follower wheel 106. A flipping bracket 104 is rotatably connected to the drive unit 101. A second shaft 105 is fixed at the axis of the follower wheel 106. The second shaft 105 is inserted into the flipping bracket 104 and rotates. The follower wheel 106 can be in contact with the glass strip clamping rollers through the flipping bracket 104. The glass strip clamping roller includes a circular boss 103 and a first shaft 102. The first shaft 102 is fixed at the axis of the circular boss 103. A detachable counterweight 108 is also provided on the flipping bracket 104. The number of counterweights 108 can be multiple.

[0034] The glass traction speed measuring mechanism 2 includes a movable base platform 21. A pair of slides 22 slide laterally on the base platform 21. Glass belt follower wheels are respectively installed on the pair of slides 22. A sensing component 23 is provided on the glass belt follower wheels. The sensing component 23 can be an angular velocity sensor. A position adjustment mechanism is also provided between the slides 22 and the base platform 21. The position adjustment mechanism is used to adjust the sliding position of the slides 22. A third guide rail 213 is provided at the bottom of the base platform 21. The base platform 21 slides on the third guide rail 213. A second guide rail 212 is fixed laterally on the base platform 21. The slides 22 slide on the base platform 21 via the second guide rail 212.

[0035] The base platform 21 is also fixed with a first guide rail 211. The position adjustment mechanism includes two independent adjustment components. The two adjustment components slide on the first guide rail 211 respectively, and the ends of the two adjustment components are respectively connected to their corresponding slides 22.

[0036] One of the adjustment components includes a first slider 241 and a single connecting rod 242, one end of the single connecting rod 242 being rotatably connected to the first slider 241, and the other end of the single connecting rod 242 being rotatably connected to the corresponding slide table 22;

[0037] The other adjustment component includes a second slider 251, a double connecting rod 252, and a counterweight 253. One end of the double connecting rod 252 is rotatably connected to the second slider 251, and the other end of the double connecting rod 252 is rotatably connected to the corresponding slide table 22. The counterweight 253 is mounted on the double connecting rod 252.

[0038] A third slider 254 is also slidable on the first guide rail 211. The third slider 254 can be positioned at the upper limit of the first guide rail 211 by means of a fixing member 256. An adjusting screw 255 is also inserted on the third slider 254.

[0039] The working principle of this invention is as follows:

[0040] The working process of the clamping roller boss surface linear velocity measuring mechanism 1 of the present invention is as follows: the driving unit 101 drives the circular boss 103 to rotate through the first shaft 102. The circular boss 103 on the same side clamps the glass strip 3 and pulls it downward by relying on the friction force. Due to the gravity, the follower wheel 106 can rotate the flip bracket 104, so that the follower wheel 106 is close to the surface of the circular boss 103, and thus the follower wheel 106 rotates together with the circular boss 103. The pressure of the follower wheel 106 on the circular boss 103 can be controlled by adding or subtracting the weight of the counterweight on the columnar counterweight seat 108.

[0041] The surface linear velocity of the circular boss 103 is converted into the linear velocity of the follower wheel 106. Since the diameter of the follower wheel 106 remains basically unchanged, the angular velocity measured by the angular velocity sensor 107 can be directly converted into the accurate surface linear velocity of the circular boss 103.

[0042] The working process of the glass traction speed measuring mechanism 2 of the present invention is as follows: After the base platform 21 moves to the predetermined position, the position of the fixed glass belt follower wheel corresponding to the second slider 251 is adjusted so that the glass belt follower wheel is as close as possible to the glass belt 3. At this time, the fixing piece 256 on the side of the corresponding third slider 254 is tightened to fix the corresponding second slider 251 or first slider 241. Then, the two sliders are finely adjusted by adjusting the adjustable screw 255 between the third slider 254 and the first slider 241 or the second slider 251. At this time, the two glass belt follower wheels clamp the glass belt 3. Then, the number of counterweights 253 on the double connecting rod 252 is adjusted according to the actual clamping force required. At the same time, the clamping force can be finely adjusted by adjusting the included angle between the double connecting rods 252.

[0043] At this time, the glass belt 3 drives the glass belt follower wheel to rotate. Since the radius of the glass belt follower wheel is almost constant, the actual traction speed of the glass belt can be obtained from the data measured by the sensing component 23, where the sensing component 23 can also be an angular velocity sensor.

[0044] Furthermore, by measuring the traction linear speed of the glass belt 3 and the linear speed of the clamping roller boss surface using auxiliary equipment, the speed of the drive servo motor of each clamping roller can be adjusted to ensure that the linear speed of the boss of each clamping roller is equal to the traction speed of the glass belt 3. This avoids slippage or poor thickness caused by different speeds of the clamping roller boss or mismatch between the speed and the traction speed of the glass belt 3.

[0045] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the scope of the claims.

Claims

1. An auxiliary device for precise control of traction roller speed, characterized in that, It includes a clamping roller boss surface linear velocity measuring mechanism (1) and a glass traction velocity measuring mechanism (2); The clamping roller boss surface linear velocity measuring mechanism (1) includes a pair of glass strip clamping rollers and a drive unit (101). The output end of the drive unit (101) is connected to the glass strip clamping rollers. A follower wheel (106) is also provided on one side of the glass strip clamping rollers. An angular velocity sensor (107) is provided on the follower wheel (106). A flipping bracket (104) is rotatably connected to the drive unit (101). A second shaft (105) is fixed at the axis of the follower wheel (106). The second shaft (105) is inserted into the flipping bracket (104) and rotates. The follower wheel (106) can be in contact with the glass strip clamping roller through the flipping bracket (104). The glass strip clamping roller includes a circular boss (103) and a first shaft (102), the first shaft (102) being fixed at the center of the circular boss (103); The glass traction speed measuring mechanism (2) includes a movable base platform (21), on which a pair of slides (22) slide laterally. Glass belt follower wheels are respectively installed on the pair of slides (22), and a sensing component (23) is provided on the glass belt follower wheels. A position adjustment mechanism is also provided between the slides (22) and the base platform (21), and the position adjustment mechanism is used to adjust the sliding position of the slides (22).

2. The auxiliary equipment for precise control of traction roller speed according to claim 1, characterized in that, The flipping bracket (104) is also equipped with a detachable counterweight (108).

3. The auxiliary equipment for precise control of traction roller speed according to claim 1, characterized in that, The base platform (21) is provided with a third guide rail (213) at its bottom, and the base platform (21) slides on the third guide rail (213).

4. The auxiliary equipment for precise control of traction roller speed according to claim 3, characterized in that, A second guide rail (212) is fixed laterally on the base platform (21), and the slide (22) slides on the base platform (21) via the second guide rail (212).

5. An auxiliary device for a precise control process of traction roller speed according to claim 1 or 4, characterized in that, The base platform (21) is also fixed with a first guide rail (211). The position adjustment mechanism includes two independent adjustment components. The two adjustment components slide on the first guide rail (211) respectively, and the ends of the two adjustment components are respectively connected to their corresponding slides (22).

6. The auxiliary equipment for precise control of traction roller speed according to claim 5, characterized in that, One of the adjustment components includes a first slider (241) and a single link (242), one end of which is rotatably connected to the first slider (241), and the other end of which is rotatably connected to the corresponding slide (22).

7. The auxiliary equipment for precise control of traction roller speed according to claim 6, characterized in that, Another adjustment component includes a second slider (251), a double connecting rod (252), and a counterweight (253). One end of the double connecting rod (252) is rotatably connected to the second slider (251), and the other end of the double connecting rod (252) is rotatably connected to the corresponding slide (22). The counterweight (253) is mounted on the double connecting rod (252).

8. The auxiliary equipment for precise control of traction roller speed according to claim 7, characterized in that, A third slider (254) is also slidable on the first guide rail (211). The third slider (254) can be positioned on the first guide rail (211) by means of a fixing member (256). An adjusting screw (255) is also inserted on the third slider (254).

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