CN117735256A - Glass positioning device, roller way system for glass transmission and glass positioning method - Google Patents

Abstract

The invention relates to a glass positioning device, a roller way system for glass transmission and a glass positioning method, wherein the glass positioning device comprises: at least two positioning blocks; the two positioning blocks are respectively arranged on the corresponding lifting devices, and the lifting devices are used for driving the positioning blocks to move between at least a first height position and a second height position in the vertical direction; the two lifting devices are arranged on the moving device, and the moving device is used for driving the lifting devices to move along the conveying direction of the glass plate; when the positioning blocks are positioned at the first height position, the positioning blocks are positioned above the transmission rail, and at least one positioning block can prop against the front end edge of the glass plate; and when the positioning blocks are positioned at the second height position, the positioning blocks are separated from the glass plate. The invention can carry out deviation correction treatment on the glass plate on the conveying roller way, so that the glass plate is accurately conveyed to a preset pressing position, the pressing work of the glass plate is ensured to be successfully completed, the product quality is improved, and the production cost is reduced.

Description

Glass positioning device, roller way system for glass transmission and glass positioning method

Technical Field

The invention relates to the technical field of glass production, in particular to a glass positioning device, a roller way system for glass transmission and a glass positioning method.

Background

At present, a common glass (such as automobile glass) is generally produced by heating and softening a glass plate by a heating furnace, conveying the glass plate to a forming area on a production line through rotation of a conveying roller way, arranging a concave die capable of moving up and down below the conveying roller way in the forming area, moving the concave die upwards and over the conveying roller way from the periphery of the conveying roller way to the upper side of the conveying roller way, and conveying the glass plate to a position opposite to the concave die. The female die just supports the glass plate and moves upwards together, and the female die is matched with the pressing male die above the conveying roller way to press the glass plate, so that the final shape of the glass plate is pressed.

The specific process flow is as follows: an accelerating light eye is arranged at the rear end of the heating furnace, when the glass plate starts to rotate in an accelerating way through a conveying roller way after the accelerating light eye, the conveying speed of the glass plate is increased to 1000-1500mm/s so as to convey the softened glass plate into a forming area, a discharging light eye is arranged at the front end of the forming area, and when the glass plate passes through the discharging light eye, the conveying roller way starts to decelerate so as to reduce the conveying speed of the glass plate to 0 within 2 s; at the same time, the concave die below the transmission roller way moves upwards and passes over the transmission roller way from the periphery of the transmission rail, and the decelerated glass plate can be supported along with the upward movement of the concave die so as to be separated from the transmission roller way. In the process, due to the influence of various factors (such as thermal expansion of glass, roller way arrangement, roller way levelness, roller way inclination, roller way speed synchronism, roller way concentricity and the like), the glass plate has the phenomena of position deviation and distortion, particularly the coated glass plate is serious, so that the glass plate cannot accurately stay on the female die (namely, the glass plate cannot be positioned at the preset accurate butt joint position on the female die when the female die supports the glass plate), the problems of pressing cracking, optical defects, lamination bubbles and the like easily occur when the female die and the male die are matched for pressing, the quality of products is seriously influenced, and the cost is increased.

Therefore, the inventor has put forward a glass positioning device, a roller way system for glass transmission and a glass positioning method by virtue of experience and practice of related industries for many years, so as to overcome the defects of the prior art.

Disclosure of Invention

The invention aims to provide a glass positioning device and a glass positioning method of a roller way system for glass transmission, which can adjust the position of a glass plate on a transmission roller way, ensure that the glass plate can accurately stay at a preset position on a female die after being supported by the female die, ensure that the female die and a male die can cooperate to finish pressing work, effectively improve the quality of products and reduce the production cost.

The object of the invention can be achieved by the following scheme:

the invention provides a glass positioning device, which is arranged in a forming area of a glass plate and positioned below a conveying roller way in the forming area, and comprises:

at least two positioning blocks;

the two positioning blocks are respectively arranged on the corresponding lifting devices, and the lifting devices are used for driving the positioning blocks to move between at least a first height position and a second height position in the vertical direction;

the two lifting devices are arranged on the moving device and are used for driving the lifting devices to move along the conveying direction of the glass plate;

when the two positioning blocks are positioned at the first height position, the two positioning blocks are positioned above the transmission track, and at least one positioning block can prop against the front end edge of the glass plate;

when the two positioning blocks are located at the second height position, the two positioning blocks are located below the conveying track and separated from the glass plate.

In a preferred embodiment of the invention, the positions of the two positioning blocks along the conveying direction of the glass sheet are configured to match the position of pressing the glass sheet in the forming zone.

In a preferred embodiment of the present invention, two positioning blocks are respectively located at symmetrical positions on both sides of the center line of the forming area along the conveying direction of the glass sheet.

In a preferred embodiment of the present invention, the moving device includes a driving motor, a driving shaft, at least two driving wheels and at least two driven wheels, the driving shaft is connected to an output shaft of the driving motor, the two driving wheels are respectively disposed on the driving shaft, a driving belt extending along a conveying direction of the glass plate is disposed between the two driving wheels and the corresponding driven wheels, and the two lifting devices are respectively connected to the corresponding driving belts.

In a preferred embodiment of the present invention, the moving device further includes at least two rail seats, the two rail seats extend along the conveying direction of the glass plate, the two driven wheels are respectively disposed at the rear parts of the corresponding rail seats, the transmission shaft is respectively rotatably connected with the front parts of the two rail seats through bearings, and the output shaft of the driving motor is connected with one end of the transmission shaft.

In a preferred embodiment of the present invention, the slide rail seat is provided with a slide rail extending along the conveying direction of the glass plate, the slide rail is provided with a mounting seat capable of sliding along the slide rail, the mounting seat is provided with a sliding block connected with the driving belt, and the lifting device is arranged at the top of the mounting seat.

In a preferred embodiment of the present invention, the lifting device includes a first lifting cylinder with a piston rod vertically disposed, and the positioning block is disposed at a top end of the piston rod of the first lifting cylinder or is a part of the top end of the piston rod of the first lifting cylinder.

The invention provides a roller way system for glass transmission, which comprises:

the device comprises a first conveying roller way, a second conveying roller way and a first conveying roller way, wherein a furnace outlet detection element is arranged on the first conveying roller way and is positioned at the outlet of a heating furnace or downstream of the outlet of the heating furnace;

the second conveying roller way is positioned in a forming area at the downstream of the first conveying roller way along the conveying direction of the glass plate;

according to the glass positioning device, the positioning blocks in the glass positioning device can move along the conveying direction of the glass plate, and the positioning blocks can be lifted to the first height position above the second conveying roller way and can be lowered to the second height position below the second conveying roller way.

In a preferred embodiment of the present invention, the second conveying roller way includes a plurality of rollers sequentially arranged along a conveying direction of the glass sheet;

each roller is at least divided into three sections, gaps are reserved between two adjacent sections, and the corresponding gaps on a plurality of rollers are communicated along the conveying direction of the glass plate so as to form a channel for the positioning block to pass through on the second conveying roller way.

In a preferred embodiment of the present invention, a lifting device is further disposed in the forming area, the lifting device is disposed around the periphery of the second conveying roller table, and the lifting device is used for lifting the glass plate to a preset height for pressing.

In a preferred embodiment of the present invention, the lifting device includes a plurality of lifting sections and a plurality of second lifting cylinders located below the lifting sections, the lifting sections enclose to form a shape adapted to an outer contour of the glass plate, the second lifting cylinders are sequentially arranged along an extending direction of the lifting sections, a cylinder body of the second lifting cylinders is connected with the supporting frame, and piston rods of the second lifting cylinders are respectively connected with bottoms of the lifting sections at corresponding positions.

In a preferred embodiment of the invention, the plurality of lifting sections are female dies or parts of female dies that are capable of pressing the glass sheet in cooperation with a male die.

The invention provides a glass positioning method, which adopts the roller way system for glass transmission to transmit and position a glass plate, and comprises the following steps:

step S1: before the glass plate is conveyed to a forming area, the moving device drives the two positioning blocks to move to a waiting position, and the lifting device drives the two positioning blocks to rise to a first height position;

step S2: at least part of the glass plate is positioned on a second conveying roller way, the moving device drives two positioning blocks to move along the conveying direction of the glass plate, and the moving speed of the positioning blocks is smaller than the conveying speed of the glass plate;

step S3: the glass plate and the two positioning blocks are gradually close to each other until at least one positioning block is propped against the front end edge of the glass plate, and correction is carried out on the glass plate.

In a preferred embodiment of the present invention, before the step S1, after the acceleration detection element detects the transmission signal of the glass plate, the transmission speed of the first transmission roller table to the glass plate is increased.

In a preferred embodiment of the present invention, before the step S2, after detecting the transmission signal of the glass plate by the tapping detection element, the transmission speed of the first transmission roller way and/or the second transmission roller way is reduced.

In a preferred embodiment of the present invention, in the step S3, the positioning blocks are matched with the second conveying roller way to correct the deviation of the glass plate until both the positioning blocks are abutted against the front end edge of the glass plate.

In a preferred embodiment of the present invention, after the step S3, the method further includes:

step S4: the moving device drives the two positioning blocks to move to a final position in an acceleration way along the conveying direction of the glass plate so as to separate the positioning blocks from the front edge of the glass plate, wherein the final position is positioned at the downstream of the waiting position;

step S5: the lifting device drives the two positioning blocks to descend to a second height position;

step S6: and the second conveying roller way conveys the corrected glass plate to a position in the forming area for pressing the glass plate.

From the above, the glass positioning device, the roller system for glass transmission and the glass positioning method have the characteristics and advantages that: the glass positioning device comprises at least two positioning blocks, the two positioning blocks are respectively connected with the corresponding lifting devices, the two positioning blocks can be driven to move between a first vertical height position and a second vertical height position through the lifting devices, the two lifting devices are connected with the moving devices, the lifting devices can be driven to move along the conveying direction of the glass plates through the moving devices, when the glass plates are inclined in the conveying process, the two positioning blocks can be lifted to the first height position, one side of the front end edge of the glass plates can be abutted against one of the positioning blocks in advance in the conveying process, a certain speed limiting effect is achieved on the movement of the side of the glass plates, the other side of the glass plates still moves at the conveying speed of a conveying track, and then the front end edge of the glass plates are abutted against the two positioning blocks under the cooperation of the positioning blocks and the conveying track.

Drawings

The following drawings are only for purposes of illustration and explanation of the present invention and are not intended to limit the scope of the invention.

Wherein:

fig. 1: the roller way system for glass transmission is structurally schematic.

Fig. 2: is a schematic structural view of the glass positioning device.

Fig. 3: the invention discloses a structural schematic diagram of a lifting device in a roller way system for glass transmission.

Fig. 4: one of the working state diagrams of the roller way system for glass transmission is provided.

Fig. 5: and the second working state diagram of the roller way system for glass transmission is provided.

Fig. 6: and the third working state diagram of the roller way system for glass transmission is shown.

Fig. 7: the fourth working state diagram of the roller way system for glass transmission is provided.

Fig. 8: a fifth working state diagram of the roller way system for glass transmission.

Fig. 9: a top view of the glass sheet of the present invention in the forming zone in an undeflected state.

Fig. 10: in the present invention, the glass sheet is positioned in the forming zone and is in a deflected state in a top view.

The reference numerals in the invention are:

1. a positioning block; 2. A mobile device;

201. a driving motor; 202. A transmission shaft;

203. a driving wheel; 204. A transmission belt;

205. a mounting base; 206. A slide block;

207. a slide rail; 208. A slide rail seat;

3. a first lifting cylinder; 100. A glass positioning device;

200. a molding zone; 300. A first transport roller way;

400. a second transport roller way; 4001. A gap;

4002. a lifting device; 4003. A second lifting cylinder;

500. a tapping detection element; 600. A heating furnace;

700. a glass plate; 800. And (5) supporting frames.

Detailed Description

For a clearer understanding of technical features, objects, and effects of the present invention, a specific embodiment of the present invention will be described with reference to the accompanying drawings.

Embodiment one

As shown in fig. 1 and 2, the present invention provides a glass positioning device, which is disposed in a forming area 200 of a glass plate 700 and is located below a conveying roller way in the forming area 200, wherein the glass positioning device includes at least two positioning blocks 1, at least two lifting devices and a moving device 2, the two positioning blocks 1 are respectively disposed on corresponding lifting devices, and the lifting devices are used for driving the positioning blocks 1 corresponding to the lifting devices to move between at least a first height position and a second height position in a vertical direction; the two lifting devices are arranged on the moving device 2, and the moving device 2 is used for driving the lifting devices and the positioning blocks 1 to move along the conveying direction of the glass plate 700; when the two positioning blocks 1 are positioned at the first height position, the two positioning blocks 1 are positioned above the transmission track, and at least one positioning block 1 can prop against the front end edge of the glass plate 700; when the two positioning blocks 1 are located at the second height position, the two positioning blocks 1 are located below the conveying track and separated from the glass plate 700.

In the present invention, the glass positioning device includes at least two positioning blocks 1, the two positioning blocks 1 are respectively connected with corresponding lifting devices, the lifting devices can drive the positioning blocks 1 to move between a first height position and a second height position in the vertical direction, the two lifting devices are connected with the moving device 2, the moving device 2 can drive the lifting devices and the positioning blocks 1 to move along the conveying direction of the glass plate 700, when the glass plate 700 is deflected during the conveying process, the two positioning blocks 1 can be lifted to the first height position, and one side of the front edge of the glass plate 700 during the conveying process (namely: along the conveying direction of the glass plate 700, the side, which is near the front edge of the glass plate 700, is abutted against one of the positioning blocks 1 in advance, so that the movement of the side of the glass plate 700 is blocked, the movement speed of the side of the glass plate 700 in the conveying direction (which is lower than the conveying speed of the conveying track) is limited to a certain extent, the other side of the glass plate 700 still moves at the conveying speed of the conveying track, the two sides of the glass plate 700 move at different speeds on the conveying roller way, the glass plate 700 rotates while moving along the conveying direction, the front edge of the glass plate 700 is abutted against the two positioning blocks 1 under the cooperation of the positioning blocks 1 and the conveying track (at the moment, the glass plate 700 is not deflected any more and the correct conveying posture is restored), the correction operation of the glass plate 700 is realized, at the moment, the correction adjustment of the glass plate 700 can accurately reach the position of pressing the glass plate 700 in the forming area, the work of the glass plate 700 is completed, the correction of the conveyed glass plate 700 is corrected, can effectively improve the product quality, reduce the defective rate and save the production cost.

The first height position can be, but is not limited to, 5mm-10mm higher than the top surface of the conveying roller way of the positioning block 1. The specific height of the second height position is not limited herein, and the height of the positioning block 1 can be ensured to be smaller than the height of the top surface of the conveying roller way.

In an alternative embodiment of the present invention, the positions of the two positioning blocks 1 along the conveying direction of the glass sheet 700 are configured to match the positions of pressing the glass sheet 700 in the forming area 200, so as to ensure that the glass sheet 700 can accurately reach the positions of pressing the glass sheet 700 in the forming area without performing a correction operation when the two positioning blocks 1 are simultaneously abutted against the front edge of the glass sheet 700.

Further, as shown in fig. 1 and 2, when the glass plate 700 is symmetrical along its center line in the conveying direction of the glass plate 700, the two positioning blocks 1 are also respectively located at symmetrical positions on two sides of the center line of the forming area 200, so as to accurately correct the deviation of the glass plate 700. Of course, two positioning blocks 1 may be disposed at different positions according to the actual shape of the glass plate 700, so that the glass plate 700 can accurately reach the position of pressing the glass plate 700 in the forming area in a state where the two positioning blocks 1 are simultaneously abutted against the front edge of the glass plate 700.

In an alternative embodiment of the present invention, as shown in fig. 2, the moving device 2 includes a driving motor 201, a driving shaft 202, at least two driving wheels 203 and at least two driven wheels, the driving shaft 202 is connected to an output shaft of the driving motor 201, the two driving wheels 203 are respectively disposed on the driving shaft 202, a driving belt 204 extending along a conveying direction of the glass plate 700 is disposed between the two driving wheels 203 and the corresponding driven wheels, and the two lifting devices are respectively connected to the corresponding driving belts 204. The driving motor 201 drives the driving belt 204 to drive along the conveying direction of the glass plate 700, so that the lifting device and the positioning block 1 can be driven to move along the conveying direction of the glass plate 700.

Further, as shown in fig. 2, the moving device 2 further includes at least two rail seats 208, the two rail seats 208 extend along the transmission direction of the glass plate 700, the two driven wheels are respectively disposed at the rear parts of the corresponding rail seats 208, the transmission shaft 202 is disposed along the horizontal direction, the positions of the transmission shaft 202 near two end parts are respectively rotatably connected with the front parts of the two rail seats 208 through bearings, and the output shaft of the driving motor 201 is connected with one end of the transmission shaft 202.

Further, as shown in fig. 2, a sliding rail 207 extending along the conveying direction of the glass plate 700 is provided at the top of the sliding rail seat 208, a mounting seat 205 capable of sliding along the sliding rail 207 is provided on the sliding rail 207, a sliding block 206 connected with the driving belt 204 is provided on the mounting seat 205, and the lifting device is provided at the top of the mounting seat 205. The power is provided for the movement of the mounting seat 205 through the driving belt 204, the sliding rail 207 plays a role in guiding the movement of the mounting seat 205, the mounting seat 205 is ensured to stably move along the transmission direction of the glass plate 700, and the movement stability of the positioning block 1 is further ensured.

In an alternative embodiment of the present invention, as shown in fig. 2, the lifting device may be, but is not limited to, a first lifting cylinder 3 with a piston rod vertically disposed, the positioning block 1 is disposed at a top end of the piston rod of the first lifting cylinder 3 or the positioning block 1 is a part of a top end of the piston rod of the first lifting cylinder 3, and the lifting movement of the positioning block 1 between the first height position and the second height position can be achieved by controlling the piston rod of the first lifting cylinder 3 to perform a telescopic action.

The glass positioning device has the characteristics and advantages that:

this glass positioner can realize the operation of rectifying to glass board 700 for glass board 700 can accurately reach the position that carries out the suppression to glass board 700 in the shaping district, accomplishes the suppression work of glass board 700, through rectifying to glass board 700 of transmission, can effectively promote product quality, reduces the defective percentage, practices thrift manufacturing cost.

Second embodiment

As shown in fig. 1 to 10, the present invention provides a roller system for glass conveyance, which includes a first conveyance roller 300, a second conveyance roller 400, and the above-mentioned glass positioning device 100, at least a partial region of the first conveyance roller 300 is located downstream of an outlet of a heating furnace 600, a tapping detection element 500 is provided on the first conveyance roller 300, the tapping detection element 500 is located at the outlet of the heating furnace 600 or downstream of the outlet of the heating furnace 600, and the tapping detection element 500 can detect a signal of a glass sheet 700 when the first conveyance roller 300 conveys the glass sheet 700 through the tapping detection element 500; along the conveying direction of the glass sheet 700, the second conveying roller way 400 is located in the forming zone 200 downstream of the first conveying roller way 300; the positioning block 1 in the glass positioning apparatus 100 can move along the conveying direction of the glass sheet 700, and the positioning block 1 can be lifted to a first height position above the second conveying roller way 400 and can be lowered to a second height position below the second conveying roller way 400.

Wherein, the first height position can be, but is not limited to, the height of the positioning block 1 is 5-10mm greater than the height of the top surface of the second conveying roller way 400. The specific height of the second height position is not limited herein, and it is only necessary to ensure that the height of the positioning block 1 is smaller than the height of the top surface of the second conveying roller way 400.

In an alternative embodiment of the present invention, as shown in fig. 1 and 4 to 10, the second transfer table 400 includes a plurality of rollers sequentially arranged along the transfer direction of the glass sheet 700; each roller is at least divided into three sections of small rollers, a gap 4001 is reserved between every two adjacent sections of small rollers, the gap 4001 is arranged so that the positioning block 1 can be lifted to the upper side of the second conveying roller way 400 through the gap 4001 in the lifting process, and the corresponding gaps 4001 on the rollers are communicated with each other along the conveying direction of the glass plate 700 so as to form a channel for the positioning block 1 to pass through on the second conveying roller way 400, and then the positioning block 1 can move along the conveying direction of the glass plate 700 in the passing channel.

In an alternative embodiment of the present invention, as shown in fig. 1 and fig. 3 to 10, a lifting device 4002 is further disposed in the forming area 200, where the lifting device 4002 is disposed around the second conveying roller 400, and the lifting device 4002 is used to lift the glass sheet 700 to a preset height for pressing.

In this embodiment, as shown in fig. 3, the lifting device 4002 includes a plurality of lifting sections and a plurality of second lifting cylinders 4003 located below the lifting sections, the plurality of lifting sections enclose to form a shape adapted to the outer contour of the glass plate 700, the plurality of second lifting cylinders 4003 are sequentially arranged along the extending direction of the plurality of lifting sections, the piston rods of the second lifting cylinders 4003 extend upwards vertically, the cylinder bodies of the plurality of second lifting cylinders 4003 are connected with the supporting frame 800, the supporting frame 800 can be fixed on a preset forming table, and the piston rods of the plurality of second lifting cylinders 4003 are respectively connected with the bottoms of the lifting sections at corresponding positions. By controlling the extension amounts of the piston rods of the plurality of second lifting cylinders 4003, the vertical height of the corresponding lifting section can be adjusted, the movement can be stopped after the glass plate 700 is conveyed to the top of the lifting device 4002, and the glass plate 700 is lifted to a preset height through the plurality of second lifting cylinders 4003 and the lifting section, so that the pressing of the glass plate 700 is completed.

Further, the plurality of lifting segments are a female mold or a portion of a female mold that can cooperate with a male mold to press the glass sheet 700. The male die is of a structure for pressing the glass plate 700 in the prior art, when the glass plate 700 is pressed, the glass plate 700 is positioned between the female die and the male die, and the glass plate 700 is pressed by matching the female die and the male die, so that the glass plate 700 is pressed and formed. The specific structure of the male die is not limited herein.

In an alternative embodiment of the present invention, the first transfer table 300 is provided with an acceleration detecting element (not shown), and the acceleration detecting element is located upstream of the tapping detecting element 500 in the transfer direction of the glass sheet 700, and the acceleration detecting element can detect a signal of the glass sheet 700 when the first transfer table 300 transfers the glass sheet 700 past the acceleration detecting element, so that the first transfer table 300 can be controlled to raise the transfer speed, and the glass sheet 700 can quickly reach the second transfer table 400.

Further, both the acceleration detection element and the tapping detection element 500 may be, but are not limited to, photo-eye (photo-sensor).

The roller system for glass transmission of the present invention has the characteristics and advantages of the glass positioning device described above, and will not be described in detail herein.

Embodiment III

The invention provides a glass positioning method, which adopts the roller way system for glass transmission to transmit and position a glass plate 700, and comprises the following steps:

step S1: before the glass plate 700 is conveyed to the forming area 200, the moving device 2 drives the two positioning blocks 1 to move to the waiting position, and the lifting device drives the two positioning blocks 1 to rise to the first height position; wherein, the first height position can be, but is not limited to, the height of the positioning block 1 is 5mm-10mm greater than the height of the top surface of the second conveying roller way 400;

step S2: at least part of the glass plate 700 is positioned on the second conveying roller way 400, and the moving device 2 drives the two positioning blocks 1 to move along the conveying direction of the glass plate 700, wherein the moving speed of the positioning blocks 1 is smaller than the conveying speed of the glass plate 700;

step S3: the glass plate 700 gradually approaches to the two positioning blocks 1 until at least one positioning block 1 abuts against the front end edge of the glass plate 700, and the glass plate 700 is rectified;

step S4: after the correction of the glass plate 700 is completed, the moving device 2 drives the two positioning blocks 1 to move to a final position in an acceleration way along the transmission direction of the glass plate 700 so as to separate the positioning blocks 1 from the front edge of the glass plate 700, wherein the final position is positioned at the downstream of the waiting position;

step S5: the lifting device drives the two positioning blocks 1 to descend to the second height position, so that the two positioning blocks 1 are lowered below the second conveying roller way 400, and the positions of the positioning blocks 1 cannot influence the conveying and positioning of the glass plate 700;

step S6: the corrected glass plate 700 continues to move on the second conveying roller way 400, and after the second conveying roller way 400 conveys the corrected glass plate 700 to a position in the formed area 200 for pressing the glass plate 700, the second conveying roller way 400 stops working;

step S7: a subsequent pressing process of the glass plate 700 is performed.

In an alternative embodiment of the present invention, before step S1, when the glass sheet 700 passes through the acceleration detection element, after the acceleration detection element detects the transmission signal of the glass sheet 700, the transmission speed of the first transmission roller table 300 to the glass sheet 700 is increased, so that the glass sheet 700 can quickly reach the second transmission roller table 400. Meanwhile, the moving device 2 is required to drive the two positioning blocks 1 to move to the waiting position, and the two positioning blocks 1 are lifted upwards to the first height position through the gap 4001 on the second conveying roller 400.

In an alternative embodiment of the present invention, before step S2, in the process of conveying the glass sheet 700 on the first conveying roller way 300, after the tapping detection element 500 detects the conveying signal of the glass sheet 700 when the glass sheet 700 passes through the tapping detection element 500, the conveying speed of the first conveying roller way 300 and/or the second conveying roller way 400 is reduced, so that the glass sheet 700 is prevented from being collided severely when contacting the positioning block 1, and the glass sheet 700 is ensured to be stably abutted against the positioning block 1. After the first conveying roller way 300 and/or the second conveying roller way 400 are/is decelerated, the conveying speed of the glass sheet 700 needs to be ensured to be slightly greater than the moving speed of the positioning block 1. Further, the transfer speed of the glass plate 700 is 10-50mm/s greater than the moving speed of the positioning block 1.

In an alternative embodiment of the present invention, in step S3, during the correction of the glass plate 700, since the conveying speed of the glass plate 700 is slightly greater than the moving speed of the positioning blocks 1, and one side of the front edge of the glass plate 700 abuts against one of the positioning blocks 1, the side of the front edge of the glass plate 700 abutting against the positioning block 1 moves on the second conveying roller way 400 at the moving speed of the positioning block 1, and the side of the front edge of the glass plate 700 not abutting against the positioning block 1 moves on the conveying speed of the second conveying roller way 400, a speed difference is generated on both sides of the glass plate 700, so that the glass plate 700 rotates while the glass plate 700 moves along the conveying direction until the front edge of the glass plate 700 abuts against both positioning blocks (at this time, it is indicated that the glass plate 700 is not deflected any more, and the correct conveying posture is restored), and the correction of the glass plate 700 is achieved by matching the positioning blocks 1 with the second conveying roller way 400. Specifically, as shown in fig. 10, when the glass plate 700 is deflected (e.g., the left side of the glass plate 700 is forward and the right side is backward in fig. 10), the position near the left side of the front edge of the glass plate 700 collides with the positioning block 1 located at the left side in advance, so that the left moving speed of the glass plate 700 is limited, and the right moving speed of the glass plate 700 is greater than the left moving speed thereof, so that the glass plate 700 rotates clockwise until the position near the right side of the front edge of the glass plate 700 collides with the positioning block 1 located at the left side, thereby realizing the deviation correction of the glass plate 700.

The glass positioning method has the characteristics and advantages that:

1. in the glass positioning method, the lifting device and the positioning blocks 1 can be driven to move along the transmission direction of the glass plate 700 by the moving device 2, the height of the positioning blocks 1 can be adjusted by the lifting device, when the glass plate 700 is deflected in the transmission process, the two positioning blocks 1 can be lifted to the first height position, one side of the front end edge of the glass plate 700 can be propped against one of the positioning blocks 1 in advance in the transmission process, so that the movement of the side of the glass plate 700 is blocked, the movement speed of the side of the glass plate 700 in the transmission direction (the side speed is lower than the transmission speed of the second transmission roller way 400) is limited to a certain extent, the other side of the glass plate 700 still moves at the transmission speed of the second transmission roller way 400, two sides of the glass plate 700 move at different speeds on the transmission roller ways, the glass plate 700 rotates while moving along the transmission direction, and further the front end edge of the glass plate 700 is propped against the two positioning blocks 1 under the cooperation of the positioning blocks 1 and the second transmission roller way 400, the correction operation of the glass plate 700 is realized, the correction of the quality of the glass plate 700 is improved, the quality of the glass plate 700 is effectively reduced, and the production cost is effectively reduced.

2. In the glass positioning method, in the process of correcting the glass plate 700, the positioning block 1 is always in a moving state, and the moving speed of the positioning block 1 is ensured to be slightly lower than the conveying speed of the second conveying roller way 400, so that the front edge of the glass plate 700 is only slightly collided when contacting with the positioning block 1, the conveying stability of the glass plate 700 is ensured, and the damage to the glass plate 700 is avoided. If the positioning block 1 is in a static state, the glass plate 700 needs to be decelerated to 0 from a high-speed moving state in a short time after colliding with the positioning block 1, and the situation can generate violent collision due to the fact that the speed difference between the glass plate 700 and the positioning block 1 is too large, and the temperature of the glass plate 700 is high (the softening temperature required by forming is reached) just after the glass plate 700 is output by the heating furnace 600, the violent collision can lead to deformation of the glass plate 700 at the collision position, the forming and the product quality are affected, and glass cracking can be caused in serious cases; furthermore, if the static positioning block 1 is adopted, the positioning block 1 can only be installed at the final position and cannot be installed at other positions in the process of conveying the glass plate 700, so that the positioning block 1 cannot be instantaneously lowered and separated from the glass plate 700, and the deviation correcting effect is poor.

The foregoing is illustrative of the present invention and is not to be construed as limiting the scope of the invention. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this invention, and are intended to be within the scope of this invention.

Claims (17)

1. The utility model provides a glass positioner, its characterized in that, glass positioner locates the shaping district of glass board, and is located the below of the transmission roll table in the shaping district, glass positioner includes:

at least two positioning blocks;

the two positioning blocks are respectively arranged on the corresponding lifting devices, and the lifting devices are used for driving the positioning blocks to move between at least a first height position and a second height position in the vertical direction;

the two lifting devices are arranged on the moving device and are used for driving the lifting devices to move along the conveying direction of the glass plate;

when the two positioning blocks are positioned at the first height position, the two positioning blocks are positioned above the transmission track, and at least one positioning block can prop against the front end edge of the glass plate;

when the two positioning blocks are located at the second height position, the two positioning blocks are located below the conveying track and separated from the glass plate.

2. The glass positioning apparatus of claim 1, wherein the positioning blocks are positioned to match the position of the pressing of the glass sheet within the forming zone along the direction of conveyance of the glass sheet.

3. The glass positioning apparatus of claim 2, wherein two of the positioning blocks are located at symmetrical positions on both sides of a center line of the forming zone along a conveying direction of the glass sheet.

4. A glass positioning apparatus according to any one of claims 1 to 3, wherein the moving means comprises a drive motor, a drive shaft, at least two driving wheels and at least two driven wheels, the drive shaft is connected to an output shaft of the drive motor, the two driving wheels are respectively provided on the drive shaft, a drive belt extending in a conveying direction of the glass sheet is provided between the two driving wheels and the corresponding driven wheels, and the two lifting means are respectively connected to the corresponding drive belts.

5. The glass positioning apparatus of claim 4, wherein the moving apparatus further comprises at least two rail seats extending in a conveying direction of the glass sheet, the two driven wheels are respectively provided at rear portions of the corresponding rail seats, the driving shaft is rotatably connected to front portions of the two rail seats through bearings, respectively, and an output shaft of the driving motor is connected to one end of the driving shaft.

6. The glass positioning device of claim 5, wherein the slide rail seat is provided with a slide rail extending along the conveying direction of the glass plate, the slide rail is provided with a mounting seat capable of sliding along the slide rail, the mounting seat is provided with a sliding block connected with the driving belt, and the lifting device is arranged at the top of the mounting seat.

7. The glass positioning apparatus of claim 6, wherein the lifting apparatus comprises a first lifting cylinder with a piston rod vertically disposed, and the positioning block is disposed at a top end of the piston rod of the first lifting cylinder or is a part of the top end of the piston rod of the first lifting cylinder.

8. A roller system for glass transport, the roller system for glass transport comprising:

the device comprises a first conveying roller way, a second conveying roller way and a first conveying roller way, wherein a furnace outlet detection element is arranged on the first conveying roller way and is positioned at the outlet of a heating furnace or downstream of the outlet of the heating furnace;

the second conveying roller way is positioned in a forming area at the downstream of the first conveying roller way along the conveying direction of the glass plate;

the glass positioning apparatus of any of claims 1-7, wherein a positioning block in the glass positioning apparatus is movable along a conveyance direction of the glass sheet, the positioning block being raisable to a first height position above the second conveyance roller way and lowerable to a second height position below the second conveyance roller way.

9. The roller table system for glass transport according to claim 8, wherein the second transport roller table comprises a plurality of rollers sequentially arranged along a transport direction of the glass sheet;

each roller is at least divided into three sections, gaps are reserved between two adjacent sections, and the corresponding gaps on a plurality of rollers are communicated along the conveying direction of the glass plate so as to form a channel for the positioning block to pass through on the second conveying roller way.

10. The roller system for glass transportation according to claim 8, wherein a lifting device is further arranged in the forming area, the lifting device is arranged around the periphery of the second transportation roller way, and the lifting device is used for lifting the glass plate to a preset height for pressing.

11. The roller table system for glass transportation according to claim 10, wherein the lifting device comprises a plurality of lifting sections and a plurality of second lifting cylinders positioned below the lifting sections, the lifting sections are enclosed to form a shape matched with the outer contour of the glass plate, the second lifting cylinders are sequentially arranged along the extending direction of the lifting sections, the cylinder bodies of the second lifting cylinders are connected with the supporting frame, and the piston rods of the second lifting cylinders are respectively connected with the bottoms of the lifting sections at corresponding positions.

12. The roller table system for glass transport according to claim 11, wherein a plurality of the lifting segments are female molds or a portion of the female molds that can be mated with male molds to press the glass sheets.

13. A glass positioning method, characterized in that a glass sheet is transported and positioned using the roller table system for glass transport according to any one of claims 8 to 12, comprising the steps of:

step S1: before the glass plate is conveyed to a forming area, the moving device drives the two positioning blocks to move to a waiting position, and the lifting device drives the two positioning blocks to rise to a first height position;

step S2: at least part of the glass plate is positioned on a second conveying roller way, the moving device drives two positioning blocks to move along the conveying direction of the glass plate, and the moving speed of the positioning blocks is smaller than the conveying speed of the glass plate;

step S3: the glass plate and the two positioning blocks are gradually close to each other until at least one positioning block is propped against the front end edge of the glass plate, and correction is carried out on the glass plate.

14. The glass positioning method according to claim 13, wherein the speed of the first conveyor table to convey the glass sheet is increased after the acceleration detection element detects the conveying signal of the glass sheet before the step S1.

15. The glass positioning method according to claim 14, wherein the transfer speed of the first transfer table and/or the second transfer table is reduced after the transfer signal of the glass sheet is detected by the tapping detection element before the step S2.

16. The glass positioning method according to claim 13, wherein in the step S3, the glass plate is rectified by matching the positioning blocks with the second conveying roller way until both the positioning blocks are abutted against the front edge of the glass plate.

17. The glass positioning method of claim 13, further comprising, after step S3:

step S4: the moving device drives the two positioning blocks to move to a final position in an acceleration way along the conveying direction of the glass plate so as to separate the positioning blocks from the front edge of the glass plate, wherein the final position is positioned at the downstream of the waiting position;

step S5: the lifting device drives the two positioning blocks to descend to a second height position;

step S6: and the second conveying roller way conveys the corrected glass plate to a position in the forming area for pressing the glass plate.