TWI692432B - Sheet conveying device and method thereof - Google Patents

Abstract

A sheet conveying device and a method thereof are revealed. By at least one gas- outlet device and a plate body including a plurality of supporting device and at least two transporting devices, the sheet conveying device makes a sheet entering the area where the gas-outlet device and the transporting devices are set therein. The gas-outlet device outputs a gas, which can generate a parallel airflow component, between the plate body and the sheet. Such parallel airflow component can cause the air pressure under the sheet is lower than the air pressure over the sheet and a downward force can be created therefrom. The downward force can push the sheet to contact the transporting devices. The sheet is transported by the friction of the transporting devices.

Description

Thin plate conveying device and method

The invention relates to a conveying device and method, in particular to a thin plate conveying device and method.

The transportation of thin sheets, such as glass sheets with a thickness of only 0.3 to 1.1 mm, is a necessary process in the production of today's panels, and the transportation between each processing procedure may cause the problem of sheet cracking caused by the transportation of thin sheets. When manufacturing panels, especially display panels or touch panels, very important matters. In general, the existing device for transporting thin plates uses a driving motor to drive the plurality of rollers to rotate. When the thin plates are transported over the plurality of rollers, such as the distance between the rollers is large, the leading edge of the thin plate is not obtained before entering the next roller. In the case of support, it will sag due to its own weight, so that it hits the next roller, which easily affects the production yield of the thin plate. As shown in the first and second figures, the conventional thin plate conveying devices 1'and 2'allow the thin plate to be placed above the conveying roller for conveying. In order to have sufficient supporting force to prevent the leading edge of the thin plate from hitting the roller, the overall conveying roller RO The number must be increased, resulting in a more complicated overall structure.

Recently, the development direction of display panels is thinner and larger, for example, the display panels of LCD TVs and plasma TVs, so that the glass substrate of the display panel is also developing in the direction of larger and thinner. During the manufacturing process, the conventional roller conveyor system uses rollers as a medium to support and transport the glass substrate. This will cause damage to the surface of the glass substrate due to multiple contact between the roller and the glass substrate during the transportation process ( Such as scratches, scratches, etc.), which in turn affects the product yield, so how to adjust the contact between the glass substrate and the roller is an inevitable issue, and the glass substrate is enlarged, in order to obtain sufficient support, the roller The number must also increase a lot, resulting in a more complicated structure. Therefore, there is a way to install an air float device between the rollers. The air flow upwardly sprayed by the air float device provides support for the glass substrate without adding a roller. The number of wheels, and thereby reduce the surface damage of the glass substrate, but in this way, the support force of the air float device is too large, causing the roller to fail to contact the glass substrate, resulting in the conventional thin plate conveying device unable to use the roller The problem of friction to convey thin plates.

Based on the above-mentioned problems, the present invention provides a thin plate conveying device and a method thereof, in which a gas flow that can generate a parallel airflow component or a parallel airflow is ejected by the air outlet device, so that the gas pressure is caused by the parallel airflow component or the parallel airflow above and below the thin plate The difference is to produce down pressure on the thin plate, so that the thin plate receives the amount of down pressure to contact the conveying device, and the conveying device conveys the thin plate through the friction force, so the problem of unable to convey due to the excessive support force of the air float device is improved, and the overall conveying device is reduced. The required power wheel.

The main object of the present invention is to provide a thin plate conveying device and method thereof, which utilizes the gas pressure difference between the upper and lower of the thin plate to generate a pressure, so that the thin plate contacts the conveying device due to the pressure, and the conveying device uses friction to convey the thin plate .

In order to achieve the above object, the present invention discloses a thin plate conveying device, which comprises: a plate body, a plurality of supporting devices, at least one air outlet device and at least two conveying devices, the plurality of support devices and the at least one air outlet device are provided at On the board body, the at least two conveying devices are penetrated on the board body. One of the thin plates enters the area of the at least one air outlet device and the at least two conveying devices through the support force of the plurality of supporting devices, wherein the at least one air outlet device is located beside the at least two conveying devices, and the at least one air outlet device outputs at least one A parallel gas flow component or gas with parallel gas flow can be generated between the thin plate and the plate body. The parallel gas flow component or the parallel gas flow makes the gas pressure between the thin plate and the plate body less than the gas pressure above the thin plate, resulting in A pressure is applied to the thin plate to make the thin plate contact the at least two conveying devices, and the at least two conveying devices convey the thin plate by friction.

The invention also discloses a thin plate conveying method, the steps of which include: when a thin plate is located on a plate body, at least one gas capable of generating a parallel gas flow component or a parallel gas flow is output to the thin plate and the plate body by at least one gas outlet device Between the parallel gas flow component or the parallel gas flow, the gas pressure between the thin plate and the plate body is less than the gas pressure above the thin plate, and a pressure is generated to the thin plate to make the thin plate contact the at least two conveying devices. The at least two conveying devices use friction to convey the thin plate.

1’: Conventional sheet conveying device

2’: Conventional sheet conveying device

1: Thin plate conveying device

2: Thin plate conveying device

3: Thin plate conveying device

4: Thin plate conveying device

5: Thin plate conveying device

10: Board body

10A: Support

12: Outlet device

12A: Outlet device

12B: Outlet device

122: Flow guide

124: scrambler

20: The first conveyor

22: First opening

30: Second conveyor

32: Second opening

AA: axis line

AP: Gas supply device

CA: First gas

CC: axis line

C: axis

D: Ascending direction

DP: Downforce

DR: Drive

F1: fixing

FX: Fixture

FF: thrust

H: interval

H1: first interval

H2: second interval

OUT: Outlet

P: Support device

PA: parallel air flow component

PF: second gas

R: diameter length

RO: transmission roller

SF: positive force

SH: thin plate

T: thickness

UP: Lifting device

UP1: pneumatic cylinder

UP2: support rod

UP3: connector

Fig. 1: It is a structural schematic diagram of an embodiment of a conventional technology; Fig. 2: It is a structural schematic diagram of another embodiment of a conventional technology; Fig. 3: It is a structural diagram of an embodiment of the invention Figures 4A and 4B: It is a schematic cross-sectional view of line AA and line BB in Figure 3; Figures 5A to 5F: It is a schematic diagram of sheet transportation according to an embodiment of the present invention; Figure 6: It is a structural schematic diagram of another embodiment of the present invention; FIGS. 7A and 7B: It is a schematic cross-sectional view of CC line and DD line of FIG. 6; FIGS. 8A to 8F: It is another implementation of the present invention Schematic diagram of thin plate transportation of the example; Figures 9A to 9F: It is a schematic diagram of thin plate transportation of another embodiment of the present invention; Figures 10A to 10F: It is a schematic diagram of thin plate transportation of another embodiment of the present invention; Fig. 11 is a schematic structural view of another embodiment of the present invention; and Fig. 12 is a schematic cross-sectional view taken along line EE of Fig. 11.

In order for your reviewing committee to have a better understanding and understanding of the features of the present invention and the achieved effects, the examples and supporting descriptions are accompanied by the following description: in view of the influence of the conventional conveying device on the surface of the thin plate and the conveying process Based on this, the present invention proposes a thin plate conveying device and method thereof to solve the problems caused by the conventional technology.

In the following, the characteristics, the structure and the method of a thin plate conveying device of the present invention will be further described: First, please refer to FIGS. 3 to 4B, which is a schematic structural view and a third The cross-sectional schematic diagram of line AA and line BB in the figure. As shown in FIGS. 3 to 4B, a thin plate conveying device 1 includes a plate body 10 and at least two conveying devices 20, 30, wherein the plate body 10 is provided with at least one air outlet device 12 and a plurality of support devices P, In this embodiment, an air outlet device 12 and a first delivery are used The device 20 and a second conveying device 30 are taken as examples. The plate body 10 is further provided with a first opening 22 and a second opening 32. The at least one air outlet device 12 is located between the first opening 22 and the second opening 32. The first conveying device 20 is disposed in the first opening 22, the second conveying device 30 is disposed in the second opening 32, the diameter R of the first conveying device 20 and the second conveying device 30 exceeds the plate body 10 The thickness T, the first conveying device 20 and the second conveying device 30 are located on an axis AA. The supporting devices P are arranged before the two conveying devices 20 and 30. As shown in FIGS. 4A and 4B, the air outlet device 12 and the support devices P are connected to a plurality of air supply devices AP.

The schematic diagram of the thin plate conveying method of the present invention is shown in FIGS. 5A to 5F, in which, when a thin plate SH is located on the plate body 10, the thin plate conveying device 1 generates at least one first by the air outlet device 12 From the gas CA to the thin plate SH, the outflow of the first gas CA forms a parallel gas flow component PA under the thin plate SH, that is, a parallel gas component PA is formed between the thin plate SH and the plate body 10, and further the thin plate SH A negative pressure is formed, so that the gas pressure above the thin plate 10 is greater than the gas pressure below the thin plate 10 and correspondingly generates a pressure DP for the thin plate SH to contact the first conveying device 20 and the second conveying device 30, Upon receiving the forward force SF of the first conveying device 20 and the second conveying device 30, the first conveying device 20 and the second conveying device 30 are allowed to convey the thin plate SH with friction.

Following the above, the method of conveying the thin plate SH by the thin plate conveying device 1 is as follows. As shown in FIGS. 5A to 5C, when the thin plate SH does not cover the first conveying device 20 and the second conveying device 30, the gas outlet device 12 does not emit gas, and the support devices P generate a plurality of The second gas PF reaches the thin plate SH to form a supporting force under the thin plate SH so that the front edge of the thin plate SH will not be blocked by its own weight before shielding the first conveying device 20 and the second conveying device 30 Sagging, thus maintaining a first interval H1 between the plate body 10 and the thin plate SH.

As shown in FIGS. 5D to 5F, based on the thin plate SH shielding the first conveying device 20 and the second conveying device 30, the gas outlet device 12 generates at least a first gas CA to the thin plate SH, the first gas The gas flow of CA forms a parallel airflow component PA under the thin plate SH, which further creates a negative pressure under the thin plate SH, thus causing the gas pressure above the thin plate 10 to be greater than the gas pressure below the thin plate 10 and correspondingly generating a pressure DP, which The downward pressure DP causes the thin plate 10 to contact the first conveying device 20 and In the second conveying device 30, the first conveying device 20 and the second conveying device 30 respectively generate a forward thrust FF on the thin plate SH through frictional force, and are used to convey the thin plate 10.

Therefore, the supporting devices P provide the supporting force to the thin plate SH through the second gases PF, so as to avoid the leading edge of the thin plate SH before shielding the first conveying device 20 and the second conveying device 30, Sagging due to its own weight impacts the first conveying device 20 or the second conveying device 30, causing damage.

Furthermore, the distribution area of the support devices P is larger than the distribution area of the first conveying device 20 and the second conveying device 30, or larger than the distribution area of the air outlet device 12. In addition, the first conveying device 20 and the second conveying device 30 are connected to the axis C, the axis C is connected to the driving device DR, and the driving device DR and the axis C are connected to the two lifting devices UP, The lifting device UP is further provided with a connecting member UP3, wherein the connecting member UP3 is a sleeve to sleeve the axis C, thereby fixing the axis C through the lifting device UP, and fixing and supporting the driving device DR .

The above is the description of the embodiment of the thin plate conveying device 1 of the present invention. In addition, further refer to FIGS. 6 to 8F, which is a schematic structural view of another embodiment of the present invention, FIG. 6 CC line and DD line The cross-sectional schematic diagram and the schematic diagram of the thin plate transportation in another embodiment. Among them, the difference between FIGS. 3 to 5F and FIGS. 6 to 8F is that the thin plate conveying device 2 of FIGS. 6 to 8F is further provided with a plurality of air outlet devices 12A, and the air outlet devices 12A are respectively A flow guide 122 is further provided, and each of the air outlet devices 12A is provided with a plurality of air outlets OUT according to the air guide 122, and the air guide 122 guides the first gas CA generated by the air outlet devices 12A Erupt to these outlets OUT. In this embodiment, the first gas CA erupts in four directions at 12 o'clock, 3 o'clock, 6 o'clock and 9 o'clock, but it is not limited to this. The gas outlets form gas eruptions in many directions, for example, eight gas outlets OUT form gas eruptions in eight directions. Further, as shown in FIGS. 8D to 8F, the parallel gas flow component PA is formed based on the first gas CA, and thus the down pressure DP is formed. The remaining delivery principles have been described in the above embodiment and will not be repeated in this embodiment.

In addition, please refer further to FIGS. 9A to 9F, which are schematic diagrams of thin plate transportation according to another embodiment of the present invention. The difference between FIGS. 8A to 8F and FIGS. 9A to 9F is that the first conveying device 20 and the second conveying device 30 of the thin plate conveying device 2 of FIGS. 8A to 8F are higher than The first opening 22 and the second opening 32, the first conveying device 20 and the second conveying device 30 of the thin plate conveying device 3 of FIGS. 9A to 9F are lower than or equivalent to the first opening 22 With the position of the second opening 32. As shown in FIGS. 9A to 9C, when the thin plate SH does not cover the first conveying device 20 and the second conveying device 30, the tops of the first conveying device 20 and the second conveying device 30 are not high At the first opening 22 and the second opening 32, the supporting devices P generate the second gases PF to support the thin plate SH.

In this embodiment, the plurality of lifting devices UP are pneumatic cylinders as an example. The lifting devices UP are connected to the axis C and the driving device DR to support the first conveying device 20 and the second conveying device 30. Raise to a position where there is an interval H between the first conveying device 20 and the second conveying device 30 and the thin plate SH, or adjust the first conveying device 20 and the second conveying device according to the user's needs A height of 30, and the lifting devices UP are connected to the driving device DR and the connecting member UP3 via a support rod UP2, respectively, to position the height of the driving device DR and the axis C.

Continuing from the above, as shown in FIGS. 9D to 9F, the first conveying device 20 and the second conveying device 30 when the sheet SH shields the first conveying device 20 and the second conveying device 30, according to a rise The direction D is raised to contact the thin plate SH, that is, the first conveying device 20 and the second conveying device 30 are raised by the lifting devices UP, and then higher than the first opening 22 and the second opening 32. Contacting the thin plate SH, thus providing a positive force SF to the thin plate SH, and in this embodiment, a gas outlet device 12, providing the first gas CA to the thin plate SH to form the parallel gas flow component PA, thereby providing the lower The pressure DP is applied to the thin plate SH, so that the first conveying device 20 and the second conveying device 30 respectively generate a forward thrust force FF on the thin plate SH through frictional force to convey the thin plate 10.

Wherein, the height adjustment of the first conveying device 20 and the second conveying device 30 of this embodiment is achieved through the lifting devices UP to ascend and descend, and by connecting the axis C and the driving device DR to locate The height of the first conveying device 20 and the second conveying device 30.

Please further refer to FIGS. 10A to 10F, which are schematic diagrams of thin plate transportation according to another embodiment of the present invention. Among them, the difference between FIGS. 9A to 9F and FIGS. 10A to 10F is that the thin plate conveying device 4 of FIGS. 10A to 10F is further provided with a plurality of air outlet devices 12A on the plate body 10, and furthermore, these Each air outlet of the air outlet device 12A is further provided with a flow guide 122, which guides The first gas CA generated by the gas outlet devices 12A is caused to erupt in all directions. In this embodiment, the first gas CA erupts in four directions at 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock, but does not Limited to this, it can be further erupted into a ring. Further, as shown in FIGS. 8D to 8F, the parallel gas flow component PA is formed based on the first gas CA, and thus the down pressure DP is formed. The remaining delivery principles have been described in the above embodiment and will not be repeated in this embodiment.

Please also refer to FIG. 11 and FIG. 12, which are a schematic structural view of another embodiment of the present invention and a cross-sectional schematic view of line EE of FIG. 11. Among them, the difference between FIGS. 6 to 7A and FIGS. 11 to 12 is that the thin plate conveying device 2 of FIGS. 6 to 7A sets the deflectors 122 of the gas outlet devices 12A respectively In the plate body 10, the thin plate conveying device 5 of FIGS. 11 to 12 arranges the plurality of gas disturbing elements 124 of the plurality of air outlet devices 12B on the plate body 10 through the plurality of support members 10A, and The gas outlets of the gas outlet devices 12B are shielded, and the gas disturbing member 124 is located above the gas outlet OUT, and the first gas CA emitted upward is guided toward the periphery of the gas disturbing members 124, so that the first gas CA It is guided to the outside of the peripheral edges of the agitators 124.

Through the above-described embodiment, the present invention uses the down pressure DP to contact the thin plate SH with the at least two conveying devices for conveying the thin plate SH, and the thin plate conveying device of the present invention maintains the thin plate SH at A fixed height, for example, the first height H1 or the second height H2, so as to prevent the edge of the thin plate SH from hanging down between the thin plate conveying devices and hitting the conveying device in the thin plate conveying device. In the embodiments described above, the conveying devices 20 and 30 of the present invention are coaxially connected to a driving device DR via the axis C, and the conveying devices 20 and 30 are driven by the driving device DR to convey the frictional force. Thin plate SH.

In addition, the support devices P described above can be further modified into elastic rollers, the friction resistance of the rollers is less than the friction force of the at least two conveying devices, thereby allowing the friction force of the at least two conveying devices to The thin plate SH forms a thrust for conveying the thin plate SH. The above-mentioned lifting device UP uses the pneumatic cylinder UP1 connected to the support rod UP2 as an example for illustration. In addition, a gear linkage device can also be used to drive the support rods UP2 to rise and fall, wherein the support rods UP2 are inserted In the pneumatic cylinders UP1, the supporting rods UP2 are connected to the driving device DR, and are connected to the axis C via a connecting member UP3, so that the lifting devices UP pass through the pneumatic cylinders UP1 The support rods UP2, the link The connection relationship between the connector UP3 and the axis C and the driving device DR is used to position the height of the first conveying device 20 and the second conveying device 30 and the distance between the plate body 10 and the thin plate SH.

In the above-mentioned embodiments, the conveying devices 20 and 30 are illustrated by the coaxial driving method. In addition, the conveying devices 20 and 30 of the present invention may be non-coaxial driving. The setting method is, for example, driving the conveying devices 20 and 30 with a plurality of axes C to rotate. In addition, the thin plate conveying device 1-5 of the above embodiment is connected to the plurality of fixing members F1 through the plurality of fixing devices FX, and the plurality of fixing members F1 are connected to the board body 10 to fix and support the board body 10.

Therefore, the present invention is truly novel, progressive and available for industrial use. It should meet the patent application requirements of my country's Patent Law. It is undoubtedly to file an application for an invention patent in accordance with the law.

However, the above are only the preferred embodiments of the present invention and are not intended to limit the scope of the implementation of the present invention. Any changes and modifications based on the shape, structure, features and spirit described in the patent application scope of the present invention , Should be included in the scope of the patent application of the present invention.

1: Thin plate conveying device

10: Board body

12: Outlet device

20: The first conveyor

22: First opening

30: Second conveyor

32: Second opening

AP: Gas supply device

CA: First gas

C: axis

DP: Downforce

DR: Drive

F1: fixing

FX: Fixture

PA: parallel air flow component

SF: positive force

SH: thin plate

UP: Lifting device

UP1: pneumatic cylinder

UP2: support rod

UP3: connector

Claims (10)

A thin plate conveying device, comprising: a plate body on which at least one air outlet device and a plurality of supporting devices are provided; and at least two conveying devices, which are disposed on the plate body, and the at least one air outlet device is located on the at least two conveying devices Aside, the at least one gas outlet device outputs at least one first gas that can generate a parallel gas flow component or a parallel gas flow between a thin plate and the plate body, the parallel gas flow component or the parallel gas flow makes the thin plate and the plate body The gas pressure is less than the gas pressure above the thin plate, and a pressure is generated to the thin plate to make the thin plate contact the at least two conveying devices, and the at least two conveying devices use friction to convey the thin plate; wherein, when the thin plate has not covered the at least In the second conveying device, the supporting devices on the plate body support the thin plate. The thin plate conveying device as described in item 1 of the patent application range, wherein the at least one air outlet device has at least one air outlet, outputting the at least one first gas that can generate the parallel gas flow component or the parallel gas flow to the thin plate and the plate Between the bodies, the parallel gas flow component or the parallel gas flow makes the gas pressure between the thin plate and the plate body less than the gas pressure above the thin plate, and generates the downward pressure to the thin plate, so that the thin plate contacts the at least two conveyances The device allows the at least two conveying devices to convey the thin plate with friction. The thin plate conveying device as described in item 1 of the patent application scope further includes at least one air guide element disposed on the at least one air outlet device, and the at least one air outlet device is provided with at least one air outlet according to the at least one air guide element, The at least one gas outlet device outputs the at least one first gas to the at least one gas outlet according to the at least one air guide member to emit the at least one first gas. The thin plate conveying device as described in item 1 of the patent application scope, wherein the at least one air outlet device has at least one air outlet and at least one gas disturbing member, the at least one gas disturbing member is disposed on the at least one air outlet, the at least one The gas outlet device outputs the at least one first gas to the at least one gas outlet and is guided to the periphery of the at least one gas-disturbing member through the at least one gas-disturbing member to erupt. The thin plate conveying device as described in item 1 of the patent application range, wherein the plurality of support devices are a plurality of rollers or a plurality of air floatation devices. The thin plate conveying device as described in item 1 of the patent application scope further includes an axis, a driving device and two lifting devices, the at least two conveying devices are connected to the driving device via the axis, and one of the two lifting devices supports The rod is connected to the driving device to position the height of the at least two conveying devices. The thin plate conveying device as described in item 6 of the patent application scope further includes a connecting member sleeved on the shaft center to fix the shaft center and the driving device. A thin plate conveying method, the steps of which include: when a thin plate is located on a plate body and the thin plate has not covered at least two conveying devices provided on the plate body, a plurality of supporting devices on the plate body support the thin plate, when the When the thin plate shields the at least two conveying devices, at least one gas outlet device on the plate body generates at least one first gas that can generate a parallel gas flow component or a parallel gas flow between the thin plate and the plate body, the parallel gas flow component or the parallel The gas flow makes the gas pressure between the thin plate and the plate body less than the gas pressure above the thin plate, and generates a pressure to the thin plate to make the thin plate contact the at least two conveying devices, and the at least two conveying devices are conveyed by friction The sheet. The thin plate conveying method as described in item 8 of the patent application range, wherein the at least one gas outlet device on the plate body generates the at least one first gas that can generate the parallel gas flow component or the parallel gas flow to the thin plate and the plate In the step between the bodies, when the thin plate shields the at least two conveying devices, the at least one gas outlet device outputs the at least one first gas that can generate the parallel gas flow component or the parallel gas flow between the thin plate and the plate body And the parallel gas flow component or the parallel gas flow makes the gas pressure between the thin plate and the plate body less than the gas pressure above the thin plate, so that the thin plate receives the downward pressure and contacts the at least two conveying devices to allow the at least two conveying The device uses friction to transport the sheet. The thin plate conveying method as described in item 8 of the patent application scope, wherein when a thin plate is located on a plate body and the thin plate has not covered at least two conveying devices provided on the plate body, A plurality of supporting devices on the plate body support the thin plate, and when the thin plate shields the at least two conveying devices, at least one gas outlet device on the plate body generates at least one first gas that can generate a parallel gas flow component or a parallel gas flow to the Between the thin plate and the plate body, the parallel gas flow component or the parallel air flow makes the gas pressure between the thin plate and the plate body less than the gas pressure above the thin plate, and generates a pressure to the thin plate to make the thin plate contact the at least Two conveying devices, and after the step of conveying the thin plate by the at least two conveying devices using frictional force, the method further includes: the at least two conveying devices are connected to a driving device via an axis, and a supporting rod of the two lifting devices is connected to the driving device To locate the height of the at least two conveying devices.

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