Material conveying apparatus for anti-glare glass display screen

Abstract

The application provides a material conveying device for anti-dazzle glass display screen, comprising a transmission machine table and a plurality of edge grinding machine tables which are arranged in parallel with the transmission machine table at intervals; in the transmission machine table and the edge grinding machine table, the upper end of a lifting device is fixedly provided with a belt pulley device whose transmission direction is perpendicular to the transmission direction of the transmission machine table and the edge grinding machine table, the belt pulley device comprises a turning belt, the outer peripheral surface of the turning belt is arrayed with brush groups, each brush group specifically comprises two bases which are fixedly embedded in the outer peripheral surface of the turning belt, a brush bundle is arranged in an arch shape between the two bases, and the two ends of a plurality of hard and elastic fiber filaments are respectively tightly arranged in the bases. Compared with the traditional turning belt, the material conveying device provided by the application is less likely to cause scratches on the surface of the glass plate, has a longer service life, and has a lower maintenance cost.

Description

Technical Field

[0001] This invention relates to the technical field of material conveying equipment in thin glass product production lines, and particularly to a material conveying equipment for an anti-glare glass display screen. Background Technology

[0002] Anti-glare glass is a type of glass with a specially treated surface. The principle is to process high-quality glass by frosting one or both sides and then polishing it, so that it has a lower reflectivity compared to ordinary glass.

[0003] The production process of anti-glare glass displays involves continuous edge grinding of the entire material on the production line, cutting the material into pieces according to specifications, and then grinding the edges of the material again. For example... Figure 1 As shown, a grinding mechanism is typically installed side-by-side on the side of the main conveyor channel. A guide belt with several brushes on its surface and positioned between the drive rollers transports the glass sheet from the main conveyor channel to the grinding mechanism for edge grinding. Then, a guide belt with several brushes on its inner surface and positioned between the drive rollers of the grinding mechanism returns the ground glass sheet to the main conveyor channel. However, this type of traditional material conveying equipment has the following drawbacks:

[0004] 1. To ensure that the steering belt can drive the glass plate when it rotates, the brush is usually higher than the top of the transmission cam on the transmission roller shaft. At the same time, to ensure that the fibers in the brush are not too soft and bend too much during transmission, thus causing "slippage", the fibers in the brush are usually made of high hardness and high strength. Furthermore, because the broken surfaces of the fibers are usually irregular, the glass plate is often scratched by the brush during transportation on the main conveyor channel, which leads to an increase in the reflectivity of the anti-glare glass and greatly affects the quality of the product.

[0005] 2. In order to improve the support of the brushes for the glass plate, the brushes are usually arranged closely on the surface of the steering belt. The number of fibers used on a single steering belt is relatively large, and the replacement and maintenance costs are correspondingly increased.

[0006] 3. The fibers in the center of the brush experience greater pressure and deformation, while the fibers at the edges experience less pressure and deformation. Therefore, the fibers in the center are damaged more quickly, resulting in sharp edges after prolonged use and causing more severe scratches on the glass surface. Summary of the Invention

[0007] To address the above problems, this invention provides a material conveying device for an anti-glare glass display screen, which is implemented as follows:

[0008] A material conveying device for an anti-glare glass display screen includes:

[0009] A transmission machine platform, comprising several first frames spliced ​​end to end, with several main transmission rollers rotatably arranged at intervals on the upper end of the first frames, and main transmission cams fixedly sleeved on the outer periphery of the main transmission rollers;

[0010] Several edge grinding machines are spaced apart and arranged in parallel with the transmission machine. The edge grinding machine includes a second frame. Several feeding rollers are rotatably arranged at intervals on the upper end of the second frame. Feeding cams are fixedly sleeved on the outer periphery of the feeding rollers. The discharge end of the edge grinding machine is also provided with a limiting edge grinding device.

[0011] The steering mechanism includes several lifting devices that can be raised and lowered. The lifting devices are disposed in the second frame and the first frame adjacent to the second frame. The upper end of the lifting device is fixedly provided with a pulley device whose transmission direction is perpendicular to the transmission direction of the transmission platform and the grinding platform. The pulley device includes a steering belt. The outer peripheral surface of the steering belt is arranged with an array of brush groups. Each brush group specifically includes two bases fixedly embedded in the outer peripheral surface of the steering belt. The two bases are arranged in an arch shape with a brush bundle. The brush bundle consists of several hard and elastic fiber filaments, each tied tightly at both ends in the base.

[0012] As a further improvement, a pair of slide rails are symmetrically arranged at the upper end of the first frame / second frame along a direction parallel to the feeding direction. Bearing seats are slidably arranged on the slide rails. The bearing seats can be locked onto the slide rails by boat-shaped nuts. The main drive roller shaft / feeding roller shaft is rotatably arranged between the two bearing seats.

[0013] As a further improvement, a drive motor is also provided at the lower end of the first frame / second frame. The output shaft of the drive motor extends along the feeding direction. Several first drive wheels are fixedly sleeved on the outer periphery of the output shaft of the drive motor at intervals. One end of the main drive roller shaft / feed roller shaft away from the second frame / first frame extends out of the bearing seat. A first driven wheel is fixed on the outer periphery of the part of the main drive roller shaft / feed roller shaft that extends out of the bearing seat. The first driven wheel is connected to the first drive wheel through a figure-eight belt.

[0014] As a further improvement, the lifting device specifically includes several bottom rods erected at the bottom of the first frame / second frame, and several lifting cylinders are fixedly arranged at intervals on the upper surface of the bottom rods. The ends of the output shafts of the several lifting cylinders are fixedly connected to a lifting frame.

[0015] The pulley device includes several support frames fixedly installed on the upper surface of the lifting frame. A connecting plate is fixedly installed at the upper end of the support frame. A second driving wheel and a second driven wheel are respectively installed at both ends of the connecting plate. The steering belt is wrapped around the outer periphery of the second driving wheel and the second driven wheel.

[0016] As a further improvement, the limiting edge grinding device includes several fixed seats fixedly disposed on the upper surface of the discharge end of the second frame, a rotating shaft fixedly disposed on the fixed seat, and a polishing head rotatably sleeved on the outer circumference of the rotating shaft.

[0017] As a further improvement, the two bases of each brush assembly are spaced apart along the transmission direction of the steering belt, and the two ends of several fiber filaments are respectively gathered and tied in the base. The brush bundle is arranged in a 1 / 2 to 1 / 3 spherical crown shape on the outer peripheral surface of the steering belt.

[0018] The distance between the two bases is 40-80 mm;

[0019] At least two rows of brush groups are provided on the outer peripheral surface of the steering belt, and the minimum distance between the bases of two adjacent brush groups in the same row is 0 to 10 mm.

[0020] As a further improvement, the base is spaced apart along the transmission direction of the steering belt and is the same width as the steering belt. The two ends of several fiber filaments are evenly spaced and tightly tied in the base. The brush bundle is arranged in an arc shape on the outer peripheral surface of the steering belt pulley.

[0021] The distance between the two bases is 35-50 mm;

[0022] The minimum distance between the bases of two adjacent brush groups is 0 to 10 mm.

[0023] As a further improvement, the two bases of each brush group are arranged at an angle of 30 to 60° with respect to the transmission direction of the steering belt, and the brush groups are arranged in pairs and intersecting each other.

[0024] The distance between the two bases of each brush assembly is 60-100 mm;

[0025] The minimum distance between the bases of two adjacent brush groups along the drive direction of the steering belt is 5 to 15 mm.

[0026] Preferably, each of the brush bundles contains 20 to 50 of the fibers.

[0027] As a further improvement, a rubber ring is fitted around the outer periphery of the main drive cam / feed cam.

[0028] The beneficial effects of this invention are as follows:

[0029] 1. By incorporating a lifting device, when the glass plate does not need to be redirected and transported to the edging machine, the brushes on the steering belt surface remain below the transmission plane of the main drive cam / feeding cam mounted on the main drive roller / feeding roller, preventing the brushes from scratching the lower surface of the glass plate during transport. When the glass plate needs to be transferred, the lifting device drives the pulley system to rise, lifting the glass plate away from the surface of the main drive cam / feeding cam before transporting it to the edging machine. This avoids friction caused by the glass plate contacting the top of the cam during transfer, preventing it from obstructing transport. It also reduces the static friction between the brushes and the glass plate, preventing some loosely contacting fibers from sliding relative to the glass plate and causing scratches.

[0030] 2. By setting up brush assemblies, each brush assembly includes two bases fixedly embedded on the outer peripheral surface of the steering belt, and an arched arrangement between the two bases, with each end of the brush bundle consisting of several fiber filaments tightly bound within the bases. This allows the arched surface of the brush bundle to contact the glass plate, and compared to the end faces of the fiber filaments, the outer peripheral surface of the fiber filaments is smoother and less likely to scratch the glass plate.

[0031] In addition, the arched design causes the untensioned fibers to deform upon contact with the glass surface, thus adhering to the surface and providing support. Compared to traditional brush tips contacting the glass, this increases the contact surface area and reduces the total length of fibers required on the steering belt. This reduces scratches on the glass surface and also lowers the production, maintenance, and replacement costs of the steering belt. Furthermore, the arched design distributes the pressure of the glass on the fibers more evenly, making fibers of equal breaking strength less prone to breakage.

[0032] 3. The process of the brush assembly lifting the glass plate results in less impact compared to the traditional cam lifting and tip brush lifting. The arched design also provides better cushioning when the lifting device lifts the pulley device and the brush assembly comes into contact with the glass plate. Attached Figure Description

[0033] Figure 1 This is a photograph of the drive rollers and brush-equipped pulleys in the material conveying equipment of a traditional anti-glare glass display production line.

[0034] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0035] Figure 3 This is a schematic diagram of the overall structure of the present invention.

[0036] Figure 4 This is a schematic diagram of the overall structure of the first or second frame of the present invention.

[0037] Figure 5 This is a schematic diagram of the overall structure of the pulley device of the present invention.

[0038] Figure 6 This is a partially enlarged schematic diagram of the discharge end of the edge grinding machine of the present invention.

[0039] Figure 7 This is a partially enlarged schematic diagram showing the connection between the main drive roller shaft or feeding roller shaft and the output shaft of the drive motor via a figure-eight belt drive.

[0040] Figure 8 This is a partially enlarged schematic diagram of Embodiment 1 of the present invention.

[0041] Figure 9 This is a partially enlarged top view of Embodiment 2 of the present invention.

[0042] Figure 10 This is a partially enlarged schematic diagram of Embodiment 3 of the present invention.

[0043] Figure 11 This is a magnified view of a portion of the glass plate before it comes into contact with the brush bundle.

[0044] Figure 12 This is a magnified schematic diagram of a portion of the glass plate in contact with the brush bundle. Detailed Implementation

[0045] 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 a part of the embodiments of the present invention, not all of them. 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. 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 claimed invention, but merely to illustrate selected embodiments of the invention.

[0046] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0047] like Figures 1 to 8 As shown, a material conveying device for an anti-glare glass display screen includes:

[0048] The transmission machine 1 includes several first frames 11 spliced ​​end to end. Several main transmission rollers 12 are rotatably arranged at the upper end of the first frames 11. A main transmission cam 13 is fixedly sleeved on the outer periphery of the main transmission rollers 12.

[0049] Several edge grinding machines 2 are spaced apart and arranged in parallel with the transmission machine base 1. The edge grinding machine base 2 includes a second frame 21. Several feeding roller shafts 22 are rotatably arranged at intervals on the upper end of the second frame 21. Feeding cams 23 are fixedly sleeved on the outer periphery of the feeding roller shafts 22. The discharge end of the edge grinding machine base 2 is also provided with a limiting edge grinding device 5.

[0050] The steering mechanism includes several lifting devices 3 that can be raised and lowered. The lifting devices 3 are disposed in the second frame 21 and the first frame 11 adjacent to the second frame 21. The upper end of the lifting device 3 is fixedly provided with a pulley device 4 whose transmission direction is perpendicular to the transmission direction of the transmission platform 1 and the grinding platform 2. The pulley device 4 includes a steering belt 45. The outer peripheral surface of the steering belt 45 is arranged with an array of brush groups 46. Each brush group 46 specifically includes two bases 361 fixedly embedded in the outer peripheral surface of the steering belt 45. The two bases 361 are arranged in an arch shape with a brush bundle 362. The brush bundle 362 is composed of several hard and elastic fiber filaments, which are respectively tied at both ends in the base 361.

[0051] The first frame 11 and the second frame 21 have the same structure, and the feeding direction of the transmission platform 1 and the edge grinding platform 2 are opposite.

[0052] Preferably, each of the brush bundles 362 contains 20 to 50 of the fibers.

[0053] As a further improvement, a pair of slide rails 101 are symmetrically arranged at the upper end of the first frame 11 / second frame 21 along a direction parallel to the feeding direction. Bearing seats 102 are slidably mounted on the slide rails 101, and the bearing seats 102 can be locked onto the slide rails 101 by boat-shaped nuts. The main drive roller shaft 12 / feed roller shaft 22 is rotatably mounted between the two bearing seats 102. The spacing between the bearing seats 102 can be adjusted according to the length of the material required for current production.

[0054] Because the overall production line is long and there are many main drive rollers 12 and feeding rollers 22, it would be too costly to install drive motors for each one, and it would be difficult to achieve the same speed rotation. Therefore, as a further improvement, a drive motor is also provided at the lower end of the first frame 11 / second frame 21. The output shaft of the drive motor extends along the feeding direction, and several first drive wheels 104 are fixedly sleeved on the outer periphery of the output shaft of the drive motor at intervals. The end of the main drive roller 12 / feeding roller 22 away from the second frame 21 / first frame 11 extends out of the bearing seat 102. The outer periphery of the part of the main drive roller 12 / feeding roller 22 extending out of the bearing seat 102 is fixedly provided with a first driven wheel 103. The first driven wheel 103 is connected to the first drive wheel 104 through a figure-eight belt.

[0055] As a further improvement, the lifting device 3 specifically includes several bottom rods 31 erected at the bottom of the first frame 11 / second frame 21. Several lifting cylinders 32 are fixedly arranged at intervals on the upper surface of the bottom rods 31. The ends of the output shafts of the several lifting cylinders 32 are fixedly connected to a lifting frame 33.

[0056] The pulley device 4 includes several support frames 41 fixedly disposed on the upper surface of the lifting frame 33. A connecting plate 42 is fixedly disposed on the upper end of the support frame 41. A second driving wheel 43 and a second driven wheel 44 are respectively disposed at both ends of the connecting plate 42. The steering belt 45 is wrapped around the outer periphery of the second driving wheel 43 and the second driven wheel 44.

[0057] As a further improvement, the limiting edge grinding device 5 includes several fixed seats 51 fixedly disposed on the upper surface of the discharge end of the second frame 21, and a rotating shaft 52 fixedly disposed on the fixed seat 51, with a polishing head 53 rotatably sleeved on the outer circumference of the rotating shaft 52.

[0058] As a further improvement, a rubber ring is fitted around the outer periphery of the main drive cam 13 / feed cam 23. The rubber ring has good shock absorption and adhesion, which can better transport the glass plate.

[0059] Example 1

[0060] like Figure 8 , Figure 11 as well as Figure 12As a further improvement, the two bases 361 of each brush assembly 46 are spaced apart along the transmission direction of the steering belt 45. The ends of several fiber filaments are gathered and tightly bound within the bases 361. The brush bundle 362 is arranged in a 1 / 2 to 1 / 3 spherical crown shape on the outer peripheral surface of the steering belt 45. If the two bases 361 of the brush assembly 46 are arranged perpendicular to the transmission direction of the steering belt 45, the fiber filaments are prone to twisting away from the transmission direction of the steering belt 45 during transport. This will reduce the support height of the brush bundle 362, making it impossible to completely separate the glass plate from the roller. Furthermore, when transported to the correct position, due to the tendency of the fiber filaments in the brush bundle 362 to return to their original shape and the inertia of the glass plate itself, the fiber filaments twist towards the belt transmission direction and are subsequently pressed down by the glass plate. This may cause the glass plate to collide with the roller surface, resulting in cracks and scratches.

[0061] The beneficial effect of this embodiment is that by gathering and binding the two ends of several fiber filaments together in the base 361, the supporting capacity of the brush bundle 362 is improved. After the two ends of several fiber filaments are gathered together, a high-strength and high-hardness fiber bundle is formed, which reduces the deformation required to lift and stably support the glass plate, and effectively extends the service life of the brush bundle 362.

[0062] For example Figure 11 as well as Figure 12 As shown, since the brush bundle 362 in this embodiment forms a 1 / 2 to 1 / 3 spherical crown shape after aggregation, during the lifting process with the lifting device 3, the central fiber filaments will inevitably contact the surface of the glass plate first, followed by the fiber filaments on both sides. Therefore, during the contact process, the fiber filaments will exhibit "self-tensioning," transforming the support of the fiber bundle on the glass plate into several line contact supports. Compared to traditional point contact supports, this provides higher support stability, preventing relative sliding and scratches between the glass plate and the brush. The fiber filaments that first contact the glass plate will tilt towards the two bases due to the pressure of the glass plate, and the portion in contact with the glass plate will be straightened and tensioned, thus achieving self-tensioning.

[0063] Preferably, the distance between the two bases 361 is 40-80 mm. If the distance between the two bases 361 is too small, the assembly difficulty of the fiber filaments increases, and the total length of fiber filaments consumed increases, thus increasing the cost. If the distance between the two bases 361 is too large, the deflection of the fiber filaments under no-load and loaded conditions will be greater, the stroke required by the lifting device 3 will increase accordingly, and the required breaking strength of the fiber filaments will also increase accordingly. More preferably, the distance between the two bases 361 is 45-55 mm; in one embodiment, the distance between the two bases 361 is 50 mm.

[0064] At least two rows of brush groups 46 are provided on the outer peripheral surface of the steering belt 45. The specific number of rows should be selected according to the bandwidth of the steering belt 45. The minimum distance between the bases 361 of two adjacent brush groups 46 in the same row is 0 to 10 mm. More preferably, the minimum distance between the bases 361 of two adjacent brush groups 46 in the same row is 2 to 8 mm; in one embodiment, the minimum distance between the bases 361 of two adjacent brush groups 46 in the same row is 5 mm.

[0065] If the minimum spacing between the bases 361 of two adjacent brush groups 46 in a row is too large, the pressure on the brush bundles 362 in each brush group 46 will increase, and the required breaking strength of the fibers will also increase accordingly.

[0066] The brush groups 46 in each column can be set one-to-one or staggered.

[0067] Example 2

[0068] like Figure 9 As shown, as a further improvement, the base 361 is spaced apart along the transmission direction of the steering belt 45 and is the same width as the steering belt 45. The two ends of several fiber filaments are evenly spaced and tied tightly in the base 361. The brush bundle 362 is arranged in an arc shape on the outer peripheral surface of the steering belt 45 wheel.

[0069] Compared to Embodiment 1, this embodiment has better contact buffering capability. Several fibers in each brush group 46 simultaneously contact the glass plate, and the self-tension of each fiber when lifting the glass plate is similar, resulting in more uniform and dispersed force. However, because the two ends of the fibers in this embodiment are not gathered and tied together to form fiber bundles, the support stability is worse than that in Embodiment 1, and the stroke required to lift the glass plate is greater.

[0070] Similarly to the embodiment, the distance between the two bases 361 in this embodiment is 45-50mm, and in one embodiment, the distance between the two bases 361 is 50mm.

[0071] The minimum distance between the bases 361 of two adjacent brush groups 46 is 0 to 10 mm. In one embodiment, the minimum distance between the bases 361 of two adjacent brush groups 46 is 5 mm.

[0072] Preferably, the spacing between adjacent fibers within the same brush group 46 is 0.5–1.5 mm. If the spacing is too small, the fibers are prone to entanglement and knot formation when they twist and shift. If the spacing is too large, the required breaking strength of the fibers must be increased. In one embodiment, the spacing between adjacent fibers within the same brush group 46 is 1 mm.

[0073] Example 3

[0074] like Figure 10 As shown, as a further improvement, the two bases 361 of each brush group 46 are arranged at an angle of 30° to 60° with respect to the transmission direction of the steering belt 45, and the brush groups 46 are arranged in pairs and intersecting each other. More preferably, the two bases 361 of each brush group 46 are arranged at an angle of 45° with respect to the transmission direction of the steering belt 45.

[0075] Compared with Embodiment 1 and Embodiment 2, this embodiment has better contact buffering ability and support stability. However, since the brush groups 46 are arranged in pairs and cross each other, the main contact part with the glass plate is the part where the fiber filaments in the two cross brush groups 46 overlap on the horizontal plane. The pressure area is reduced, the unit pressure is increased, and the material requirements of the fiber filaments are higher.

[0076] The distance between the two bases 361 in each brush group 46 is 60-100mm. Compared with Embodiment 1 and Embodiment 2, this embodiment has better contact buffering ability and support stability because the brush groups are arranged in pairs and cross each other. The distance between the bases can be set to be larger to reduce the amount of fiber used.

[0077] Similarly, the minimum distance between the bases 361 of two adjacent brush groups 46 along the transmission direction of the steering belt 45 is 5 to 15 mm.

[0078] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A material conveying device for an anti-glare glass display screen, characterized in that, include: A transmission machine platform, comprising several first frames spliced ​​end to end, with several main transmission rollers rotatably arranged at intervals on the upper end of the first frames, and main transmission cams fixedly sleeved on the outer periphery of the main transmission rollers; Several edge grinding machines are spaced apart and arranged in parallel with the transmission machine. The edge grinding machine includes a second frame. Several feeding rollers are rotatably arranged at intervals on the upper end of the second frame. Feeding cams are fixedly sleeved on the outer periphery of the feeding rollers. The discharge end of the edge grinding machine is also provided with a limiting edge grinding device. The steering mechanism includes several lifting devices that can be raised and lowered. The lifting devices are disposed in the second frame and the first frame adjacent to the second frame. The upper end of the lifting device is fixedly provided with a pulley device whose transmission direction is perpendicular to the transmission direction of the transmission platform and the grinding platform. The pulley device includes a steering belt. The outer peripheral surface of the steering belt is arranged with an array of brush groups. Each brush group specifically includes two bases fixedly embedded in the outer peripheral surface of the steering belt. The two bases are arranged in an arch shape with a brush bundle. The brush bundle consists of several hard and elastic fiber filaments, each tied tightly at both ends in the base.

2. The material conveying device for an anti-glare glass display screen as described in claim 1, characterized in that, The upper ends of the first frame and the second frame are symmetrically provided with a pair of slide rails in a direction parallel to the feeding direction. Bearing seats are slidably provided on the slide rails. The bearing seats can be locked onto the slide rails by boat-shaped nuts. The main drive roller shaft and the feeding roller shaft are rotatably disposed between the two bearing seats.

3. The material conveying device for an anti-glare glass display screen as described in claim 2, characterized in that, The lower ends of the first frame and the second frame are also provided with drive motors. The output shaft of the drive motor extends along the feeding direction. Several first drive wheels are fixedly sleeved on the outer periphery of the output shaft of the drive motor at intervals. The end of the main drive roller shaft and the feeding roller shaft away from the second frame and the first frame extends out of the bearing seat. The outer periphery of the part of the main drive roller shaft and the feeding roller shaft extending out of the bearing seat is provided with a first driven wheel. The first driven wheel is connected to the first drive wheel through a figure-eight belt.

4. The material conveying device for an anti-glare glass display screen as described in claim 1, characterized in that, The lifting device specifically includes several bottom rods erected at the bottom of the first frame and the second frame. Several lifting cylinders are fixedly arranged at intervals on the upper surface of the bottom rods. The ends of the output shafts of the lifting cylinders are fixedly connected to a lifting frame. The pulley device includes several support frames fixedly installed on the upper surface of the lifting frame. A connecting plate is fixedly installed at the upper end of the support frame. A second driving wheel and a second driven wheel are respectively installed at both ends of the connecting plate. The steering belt is wrapped around the outer periphery of the second driving wheel and the second driven wheel.

5. The material conveying device for an anti-glare glass display screen as described in claim 1, characterized in that, The limiting edge grinding device includes several fixed seats fixedly disposed on the upper surface of the discharge end of the second frame. A rotating shaft is fixedly disposed on the fixed seat, and a polishing head is rotatably sleeved on the outer circumference of the rotating shaft.

6. The material conveying device for an anti-glare glass display screen as described in claim 1, characterized in that, Two bases of each brush assembly are spaced apart along the transmission direction of the steering belt. The two ends of several fiber filaments are gathered and tied together in the base. The brush bundle is arranged in a 1 / 2 to 1 / 3 spherical crown shape on the outer peripheral surface of the steering belt. The distance between the two bases is 40-80 mm; At least two rows of brush groups are provided on the outer peripheral surface of the steering belt, and the minimum distance between the bases of two adjacent brush groups in the same row is 0 to 10 mm.

7. The material conveying device for an anti-glare glass display screen as described in claim 1, characterized in that, The base is spaced apart along the transmission direction of the steering belt and is the same width as the steering belt. The two ends of several fiber filaments are evenly spaced and tied tightly inside the base. The brush bundle is arranged in an arc shape on the outer peripheral surface of the steering belt pulley. The distance between the two bases is 35-50 mm; The minimum distance between the bases of two adjacent brush groups is 0 to 10 mm.

8. The material conveying device for an anti-glare glass display screen as described in claim 1, characterized in that, The two bases of each brush group are arranged at an angle of 30 to 60° with respect to the transmission direction of the steering belt, and the brush groups are arranged in pairs and cross each other. The distance between the two bases of each brush assembly is 60-100 mm; The minimum distance between the bases of two adjacent brush groups along the drive direction of the steering belt is 5 to 15 mm.

9. The material conveying device for an anti-glare glass display screen as described in claim 1, characterized in that, Each of the brush bundles contains 20 to 50 of the aforementioned fibers.

10. The material conveying device for an anti-glare glass display screen as described in claim 1, characterized in that, The main drive cam and the feeding cam are fitted with rubber rings on their outer peripheries.

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