CN112903718A - Glass substrate fragment detection system and method - Google Patents
Glass substrate fragment detection system and method Download PDFInfo
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- CN112903718A CN112903718A CN202110077659.7A CN202110077659A CN112903718A CN 112903718 A CN112903718 A CN 112903718A CN 202110077659 A CN202110077659 A CN 202110077659A CN 112903718 A CN112903718 A CN 112903718A
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- 239000011521 glass Substances 0.000 title claims abstract description 335
- 239000000758 substrate Substances 0.000 title claims abstract description 334
- 238000001514 detection method Methods 0.000 title claims abstract description 254
- 239000012634 fragment Substances 0.000 title claims abstract description 159
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005507 spraying Methods 0.000 claims abstract description 208
- 239000007788 liquid Substances 0.000 claims abstract description 170
- 238000002347 injection Methods 0.000 claims description 55
- 239000007924 injection Substances 0.000 claims description 55
- 239000007921 spray Substances 0.000 claims description 42
- 230000004044 response Effects 0.000 claims description 15
- 230000008859 change Effects 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
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Abstract
The disclosure relates to a glass substrate fragment detection system and a method, the glass substrate fragment detection system comprises a spraying device (2) and a fragment detection device (3), the spraying device (2) and the fragment detection device (3) are oppositely arranged at intervals along the thickness direction of the glass substrate (1), and the gap between the spraying device (2) and the fragment detection device (3) is used for the glass substrate (1) moving along the length direction of the glass substrate (1) to pass through, the spraying device (2) is used for spraying atomized liquid (21) to the first surface (11) of the glass substrate (1), the fragment detection device (3) is used for detecting whether the atomized liquid (21) sprayed by the spraying device (2) penetrates out of a second surface (12) of the glass substrate (1) opposite to the first surface (11). By the glass substrate fragment detection system, whether the glass substrate is damaged or not can be detected.
Description
Technical Field
The disclosure relates to the technical field of glass production, in particular to a glass substrate fragment detection system and a glass substrate fragment detection method.
Background
In the process of glass substrate production, the grinding process mainly has the effects that four sides of the precisely cut glass substrate are ground, polished and chamfered by the grinding mechanism and the polishing mechanism to form the glass substrate with the size specification required by a user, the local side burning-off of the glass substrate can occur in the grinding and polishing process, and when the glass substrate is grabbed and reversed or conveyed by a workbench, the glass substrate is broken locally or integrally due to collision and the like. When the broken glass substrate enters a subsequent cleaning process, the broken glass substrate can cause cutting type damage to a cleaning disc brush, a rolling brush, an O-shaped ring and the like, and the glass substrate is scratched in batches when the damage is serious, so that huge economic loss is caused.
Disclosure of Invention
The present disclosure is directed to a glass substrate fragment detection system and method for solving the technical problems of the related art.
In order to achieve the above object, the present disclosure provides a glass substrate fragment detection system, including atomizer and fragment detection device, atomizer with fragment detection device sets up along the relative interval of glass substrate thickness direction, and the clearance between atomizer and the fragment detection device is used for supplying along the glass substrate's that the length direction removed glass substrate passes, atomizer is used for to the first surface of glass substrate sprays the atomized liquid, fragment detection device is used for detecting whether the atomized liquid that atomizer sprays is followed glass substrate with the second surface that the first surface is relative wears out.
Optionally, the glass substrate fragment detection system further comprises a mounting plate and an air injection device, wherein the air injection device and the fragment detection device are both mounted on the mounting plate, and the air injection device is used for injecting air to the mounting plate and the region between the glass substrates.
Optionally, the fragment detection device includes a photoelectric sensor, the photoelectric sensor includes a light receiver, the photoelectric sensor is used for being in the light receiver adheres to produce the change of electric signal under the condition of atomized liquid, the air jet system includes a plurality of air nozzles, every the relative both sides of photoelectric sensor all are provided with the air nozzle, the air nozzle for photoelectric sensor slope sets up and is used for to the light receiver gas injection.
Optionally, the spraying device comprises a liquid supply pipe for containing liquid and a plurality of spraying heads which are communicated with the liquid supply pipe, the liquid supply pipe extends along the width direction of the glass substrate, the plurality of spraying heads are arranged on the liquid supply pipe at intervals along the width direction, the spraying heads are used for spraying atomized liquid to the first surface of the glass substrate, and the plurality of spraying heads are arranged to enable the atomized liquid sprayed by the spraying heads to be positioned in the first surface;
the glass substrate comprises a glass substrate and a plurality of fragment detection devices, wherein the plurality of fragment detection devices are arranged in the glass substrate in a projection manner.
Optionally, the glass substrate fragment detection system further comprises a position detection device and a controller connected to the position detection device, the position detection device and the fragment detection device are located on the same side of the glass substrate, the position detection device is located upstream of the fragment detection device and the spraying device along the moving direction of the glass substrate, and the position detection device, the fragment detection device and the spraying device are arranged at intervals in the moving direction of the glass substrate,
the controller is configured to:
controlling the gas spraying device to spray gas in response to a change of a signal output from the position detecting device to the controller from a first signal to a second signal, and starting a first timer, wherein the first signal is a signal output when the position detecting device does not detect the glass substrate, and the second signal is a signal output when the position detecting device detects the glass substrate;
controlling the air injection device to close air injection under the condition that the timing duration of the first timer reaches a first preset duration;
and under the condition that the timing duration of the first timer reaches a second preset duration, controlling the spraying device to spray atomized liquid, wherein the second preset duration is longer than the first preset duration, and the second preset duration is the movement duration of the calibrated glass substrate from the position of the position detection device to the position of the spraying device.
Optionally, the controller is further configured to:
starting a second timer in response to the signal output to the controller by the position detection device changing from the second signal to the first signal;
under the condition that the timing duration of the second timer reaches a third preset duration, controlling the spraying device to stop spraying the atomized liquid; or,
and under the condition that the timing duration of the second timer reaches a fourth preset duration, controlling the spraying device to stop spraying the atomized liquid and controlling the air spraying device to spray air.
Optionally, the glass substrate fragment detection system further comprises an alarm device, the controller is connected with the fragment detection device and the alarm device, and the controller is further configured to control the alarm device to alarm in response to receiving a signal output by the fragment detection device and indicating that the atomized liquid sprayed by the spraying device penetrates out of the second surface; and,
controlling the air injection device to inject air and controlling the spraying device to stop injecting the atomized liquid.
When the glass substrate fragment detection system is used for detecting a glass substrate, the glass substrate moves along the length direction and penetrates through a gap between the spraying device and the fragment detection device, the spraying device sprays atomized liquid to the first surface of the glass substrate, and under the condition that the glass substrate is not damaged, the atomized liquid cannot penetrate through the glass substrate, is only distributed on one side where the first surface of the glass substrate is located, and cannot reach one side where the second surface of the glass substrate opposite to the first surface is located; and when the glass substrate is damaged, the atomized liquid sprayed by the spraying device can penetrate out of the second surface through the damaged part of the glass substrate after reaching the first surface of the glass substrate, and in this case, the fragment detection device detects that the atomized liquid penetrates out of the second surface of the glass substrate, namely, the glass substrate is damaged at the part of the glass substrate, which is contacted with the atomized liquid. Through above-mentioned glass substrate fragment detecting system, can realize the fragment detection to glass substrate, detect whether have damage such as crackle and fragment on the glass substrate to prevent that damaged glass substrate from causing equipment damage in getting into the equipment of processing next step.
The present disclosure also provides a glass substrate fragment detection method, which is applied to a controller in a glass substrate fragment detection system, wherein the glass substrate fragment detection system comprises a spraying device, a fragment detection device, and the controller connected with the spraying device and the fragment detection device, the spraying device and the fragment detection device are oppositely arranged along a thickness direction of a glass substrate at intervals, and a gap between the spraying device and the fragment detection device is used for the glass substrate moving along a length direction of the glass substrate to pass through, and the method comprises:
controlling the spraying device to spray atomized liquid to the first surface of the glass substrate when the glass substrate moves to the position of the spraying device;
and determining that the glass substrate is damaged when the fragment detection device detects that the atomized liquid sprayed by the spraying device penetrates out of a second surface of the glass substrate opposite to the first surface.
Optionally, the glass substrate fragment detection system further comprises an installation plate, an air injection device, and a position detection device, wherein the controller is connected to the air injection device and the position detection device, the air injection device and the fragment detection device are both installed on the installation plate, the position detection device and the fragment detection device are located on the same side of the glass substrate, along the moving direction of the glass substrate, the position detection device is located at the upstream of the fragment detection device and the spraying device, and the position detection device, the fragment detection device and the spraying device are arranged at intervals in the moving direction of the glass substrate;
the method further comprises the following steps:
controlling the gas injection device to inject gas into an area between the mounting plate and the glass substrate in response to a change in a signal output from the position detection device to the controller from a first signal to a second signal, and starting a first timer, wherein the first signal is a signal output in a case where the position detection device does not detect the glass substrate, and the second signal is a signal output in a case where the position detection device detects the glass substrate;
controlling the air injection device to close air injection under the condition that the timing duration of the first timer reaches a first preset duration;
controlling the spraying device to spray atomized liquid when the timing duration of the first timer reaches a second preset duration, wherein the second preset duration is longer than the first preset duration, and the second preset duration is the movement duration of the calibrated glass substrate moving from the position of the position detection device to the position of the spraying device;
starting a second timer in response to the signal output to the controller by the position detection device changing from the second signal to the first signal;
under the condition that the timing duration of the second timer reaches a third preset duration, controlling the spraying device to stop spraying the atomized liquid; or under the condition that the timing duration of the second timer reaches a fourth preset duration, controlling the spraying device to stop spraying the atomized liquid and controlling the air spraying device to spray air.
Optionally, the glass substrate fragment detection system further includes an alarm device, the controller is connected to the fragment detection device and the alarm device, and the method further includes:
controlling the alarm device to give an alarm under the condition that the glass substrate is determined to be damaged; and,
controlling the air injection device to inject air and controlling the spraying device to stop injecting the atomized liquid.
When the glass substrate fragment detection method is used for detecting the glass substrate, the glass substrate can move along the length direction and pass through a gap between the spraying device and the fragment detection device, and when the glass substrate moves to the position of the spraying device, the spraying device is controlled to spray atomized liquid to the first surface of the glass substrate. Under the condition that the glass substrate is not damaged, the atomized liquid cannot penetrate through the glass substrate and only is distributed on one side of the first surface of the glass substrate but cannot reach one side of a second surface of the glass substrate, wherein the second surface of the glass substrate is opposite to the first surface; and when the glass substrate is damaged, the atomized liquid sprayed by the spraying device can penetrate out of the second surface through the damaged part of the glass substrate after reaching the first surface of the glass substrate, and in this case, the fragment detection device detects that the atomized liquid penetrates out of the second surface of the glass substrate, namely, the fragment detection device determines that the glass substrate is damaged when detecting that the atomized liquid sprayed by the spraying device penetrates out of the second surface of the glass substrate opposite to the first surface. Through the glass substrate fragment detection method, the fragment detection of the glass substrate can be realized, whether the damage such as cracks, fragments and the like exists on the glass substrate is detected, and the damage of the damaged glass substrate caused by entering the next processing equipment is prevented.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a front view of a glass substrate fragment detection system provided in an exemplary embodiment of the present disclosure;
FIG. 2 is a side view of a glass substrate fragment detection system provided in an exemplary embodiment of the present disclosure;
FIG. 3 is a top view of a glass substrate fragment detection system provided in an exemplary embodiment of the present disclosure;
FIG. 4 is a front view of a glass substrate fragment detection system provided in accordance with an exemplary embodiment of the present disclosure, wherein the front end of the glass substrate is within the detection range of the position detection device;
fig. 5 is a front view of a glass substrate fragment detection system according to an exemplary embodiment of the present disclosure, in which a front end of a glass substrate is located at a position that can be covered by an atomized liquid sprayed from a spraying device;
FIG. 6 is a front view of a glass substrate fragment detection system provided in accordance with an exemplary embodiment of the present disclosure, wherein the rear end of the glass substrate is within the detection range of the position detection device;
fig. 7 is a front view of a glass substrate fragment detection system according to an exemplary embodiment of the present disclosure, in which a rear end of a glass substrate is located at a position that can be covered by an atomized liquid sprayed from a spraying device;
FIG. 8 is a schematic flow chart of a glass substrate fragment detection method according to an exemplary embodiment of the present disclosure;
FIG. 9 is a schematic flow chart diagram of a glass substrate fragment detection method according to an exemplary embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of a control device of a glass substrate fragment detection system according to an exemplary embodiment of the present disclosure.
Description of the reference numerals
1-a glass substrate; 11-a first surface; 12-a second surface; 2-a spraying device; 21-atomized liquid; 22-a supply tube; 23-a spray head; 3-a fragment detection device; 4-mounting a plate; 5-an air injection device; 51-an air nozzle; 6-position detection means; 7-a controller; 8-alarm device.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, terms of orientation such as "thickness direction, length direction, width direction" used herein refer to the thickness direction, length direction, width direction of the glass substrate, as shown with specific reference to fig. 1 and 2; the use of an orientation word such as "upstream" generally refers to a direction opposite to the direction of movement of the glass substrate and "downstream" generally refers to the same direction as the direction of movement of the glass substrate, as shown with particular reference to FIG. 1.
As shown in fig. 1 to 10, the present disclosure provides a glass substrate fragment detection system, which includes a spraying device 2 and a fragment detection device 3, the spraying device 2 and the fragment detection device 3 are disposed at an interval in a thickness direction of the glass substrate 1, a gap between the spraying device 2 and the fragment detection device 3 is used for the glass substrate 1 moving in a length direction of the glass substrate 1 to pass through, the spraying device 2 is used for spraying an atomized liquid 21 to a first surface 11 of the glass substrate 1, and the fragment detection device 3 is used for detecting whether the atomized liquid 21 sprayed by the spraying device 2 passes through a second surface 12 of the glass substrate 1 opposite to the first surface 11.
When the glass substrate breakage detection system is used for detecting the glass substrate 1, the glass substrate 1 moves along the length direction and passes through a gap between the spraying device 2 and the breakage detection device 3, the spraying device 2 sprays the atomized liquid 21 to the first surface 11 of the glass substrate 1, when the glass substrate 1 is not broken, the atomized liquid 21 cannot pass through the glass substrate 1, only is distributed on one side of the first surface 11 of the glass substrate 1, and cannot reach one side of the second surface 12 of the glass substrate 1 opposite to the first surface 11, in this case, the breakage detection device 3 does not detect that the atomized liquid 21 penetrates out of the second surface 12 of the glass substrate 1, namely, the glass substrate 1 is not broken in a range where the glass substrate is contacted with the atomized liquid 21 sprayed by the spraying device 2; on the other hand, when the glass substrate 1 is broken, the atomized liquid 21 sprayed by the spraying device 2 reaches the first surface 11 of the glass substrate 1 and then can pass through the broken portion of the glass substrate 1 to pass out from the second surface 12, and in this case, the fragment detection device 3 detects that the atomized liquid 21 passes out from the second surface 12 of the glass substrate 1, that is, the glass substrate 1 is broken at a portion thereof contacting with the atomized liquid 21. Through above-mentioned glass substrate fragment detecting system, can realize the fragment detection to glass substrate 1, detect whether there are damage such as crackle and fragment on glass substrate 1 to prevent that damaged glass substrate 1 from causing equipment damage in getting into the equipment of processing next step.
Here, the atomized liquid 21 sprayed by the spraying device 2 mentioned above may be a low-pressure water mist, and since the droplet size of the atomized liquid 21 is small, the size of the damaged portion of the glass substrate 1 through which the atomized liquid 21 can pass from the second surface 12 is small, and the amount of the atomized liquid 21 that can pass through the damaged portion of the glass substrate 1 is also large, that is, the detection accuracy of the glass substrate fragment detection system can be improved.
In order to ensure the detection accuracy of the fragment detection device 3, optionally, the glass substrate fragment detection system may further include a mounting plate 4 and an air injection device 5, the air injection device 5 and the fragment detection device 3 are both mounted on the mounting plate 4, and the air injection device 5 is configured to inject air into the region between the mounting plate 4 and the glass substrate 1, so as to remove the atomized liquid 21 in the region between the mounting plate 4 and the glass substrate 1. Before the glass substrate fragment detection system is used for detecting the glass substrate 1, the air injection device 5 is used for injecting air to the area between the mounting plate 4 and the glass substrate 1, so that the atomized liquid 21 is not generated in the area between the mounting plate 4 and the glass substrate 1 before the glass substrate 1 is detected, and the fragment detection device 3 is prevented from generating false alarm. After the fragment detection device 3 detects that the atomized liquid 21 penetrates out of the second surface 12 of the glass substrate 1, in order to enable the fragment detection device 3 to continue to detect the subsequent glass substrate 1, the air injection device 5 may be used to inject air into the region between the mounting plate 4 and the glass substrate 1 to remove the atomized liquid 21 in the region between the mounting plate 4 and the glass substrate 1, so as to prevent the residual atomized liquid 21 from affecting the detection result of the subsequent glass substrate 1.
The structure of the fragment detection device 3 capable of detecting whether the atomized liquid 21 passes out of the second surface 12 may be various, and as an exemplary embodiment, the fragment detection device 3 may include a humidity sensor including a humidity-sensitive element, and the humidity sensor is configured to generate an electrical signal change when the atomized liquid 21 is attached to a humidity-sensitive film of the humidity-sensitive element.
As another exemplary embodiment, the fragment detection means 3 may comprise a photoelectric sensor including a light receiver for generating a change in an electrical signal in case the atomized liquid 21 is attached to the light receiver.
Alternatively, for embodiments in which the fragment detection means 3 may comprise a photoelectric sensor, the air injection means 5 may comprise a plurality of air nozzles 51, each photoelectric sensor being provided on opposite sides with an air nozzle 51, the air nozzles 51 being arranged obliquely with respect to the photoelectric sensor and serving to inject air towards the light receiver. When the atomized liquid 21 does not adhere to the light receiver of the photo sensor, the current inside the photo sensor has a relatively stable value, and when the atomized liquid 21 passes out of the second surface 12 and adheres to the light receiver of the photo sensor, the light received by the light receiver changes due to the refraction and reflection of the atomized liquid 21, so that the current inside the photo sensor also changes, and therefore, the change in the current inside the photo sensor indicates that the atomized liquid 21 passes through the second surface 12, i.e., the glass substrate 1 is damaged. Before the glass substrate 1 is detected by the photoelectric sensor, the atomized liquid 21 on the light receiver can be removed by blowing air to the light receiver through the air nozzle 51, and the atomized liquid 21 remaining on the light receiver can be prevented from affecting the detection result. All be provided with air nozzle 51 in every photoelectric sensor's the relative both sides, can guarantee that the gas that air nozzle 51 blowout comes can blow all surfaces of photoreceiver, prevent to have the dead angle of blowing and cause the residue of atomized liquid 21 to, use two air nozzles 51 to jet air simultaneously and can accelerate the speed of cleaing away atomized liquid 21, improve detection efficiency.
Alternatively, the spraying device 2 may include a liquid supply pipe 22 for containing liquid and a plurality of spraying heads 23 each communicating with the liquid supply pipe 22, the liquid supply pipe 22 extends along the width direction of the glass substrate 1, the plurality of spraying heads 23 are arranged on the liquid supply pipe 22 at intervals along the width direction, the spraying heads 23 are used for spraying the atomized liquid 21 toward the first surface 11 of the glass substrate 1, and the plurality of spraying heads 23 are arranged so that the atomized liquid 21 sprayed by the spraying heads 23 is located in the first surface 11, thereby preventing the atomized liquid 21 from bypassing from the side surface of the glass substrate 1 to reach the second surface 22 and being detected by the fragment detection device 3 to generate false alarm. Because the plurality of spray heads 23 are arranged along the width direction of the glass substrate 1, the atomized liquid 21 sprayed by the plurality of spray heads 23 can cover the first surface 11 of the glass substrate 1 along the width direction, and because the glass substrate 1 moves along the length direction thereof in the detection process, compared with the glass substrate 1, the range covered by the atomized liquid 21 sprayed by the plurality of spray heads 23 also moves in the length direction of the glass substrate 1, so that the atomized liquid 21 can completely cover the first surface 11 of the glass substrate 1, the detection dead angle which cannot be covered by the atomized liquid 21 in the detection process is prevented, and the accuracy of the detection result is ensured. For the above embodiment of the multiple spray heads 23, the number of the fragment detection devices 3 may be multiple, the projections of the multiple fragment detection devices 3 on the glass substrate 1 are located in the glass substrate 1, and the projection range of the atomized liquid 21 sprayed by the multiple spray heads 23 on the first surface 11 coincides with the projection range of the multiple fragment detection devices 3 on the glass substrate 1, so as to ensure that the atomized liquid 21 can be detected by the fragment detection devices 3 after penetrating out of the second surface 12 of the glass substrate 1, and improve the detection accuracy of the glass substrate fragment detection system.
Alternatively, as shown in fig. 1 to 3 and 10, the glass substrate breakage detection system may further include a position detection device 6 and a controller 7 connected to the position detection device 6, the position detection device 6 and the breakage detection device 3 are located on the same side of the glass substrate 1, the position detection device 6 is located upstream of the breakage detection device 3 and the spraying device 2 along the moving direction of the glass substrate 1, and the position detection device 6, the breakage detection device 3 and the spraying device 2 are spaced apart in the moving direction of the glass substrate 1, and the controller 7 is configured to: controlling the gas spraying device 5 to spray gas and starting the first timer in response to a change of a signal output from the position detecting device 6 to the controller 7 from a first signal to a second signal, wherein the first signal is a signal output in a case where the position detecting device 6 does not detect the glass substrate 1, and the second signal is a signal output in a case where the position detecting device 6 detects the glass substrate 1; controlling the air injection device 5 to close air injection under the condition that the timing duration of the first timer reaches a first preset duration; and controlling the spraying device 2 to spray the atomized liquid 21 when the timing duration of the first timer reaches a second preset duration, wherein the second preset duration is longer than the first preset duration, and the second preset duration is the calibrated moving duration of the glass substrate 1 moving from the position of the position detection device 6 to the position of the spraying device 2.
As shown in fig. 4, since the position detecting device 6 is located upstream of the fragment detecting device 3 and the spraying device 2, and the position detecting device 6, the fragment detecting device 3 and the spraying device 2 are arranged at an interval in the moving direction of the glass substrate 1, when the position detecting device 6 detects the glass substrate 1, the front end of the glass substrate 1 has not moved to the position which can be covered by the atomized liquid 21 sprayed by the spraying device 2, and the spraying device 2 is in a state of not spraying the atomized liquid, and the controller 7 can control the air spraying device 5 to start air spraying to remove the residual atomized liquid 21, and control the air spraying device 5 to stop air spraying when the timing duration of the first timer reaches the first preset duration, since the second preset duration is the duration which is calibrated in advance for the front end of the glass substrate 1 to move to the position which can be covered by the atomized liquid 21 sprayed by the spraying device 2, and the second preset time period is longer than the first preset time period, that is, the removal of the remaining atomized liquid 21 by the air-jet device 5 can be completed before the front end of the glass substrate 1 moves to a position where the atomized liquid 21 jetted by the air-jet device 2 can cover, as shown in fig. 5, when the front end of the glass substrate 1 moves to a position where the atomized liquid 21 sprayed by the spraying device 2 can cover (i.e. the timing duration of the first timer reaches the second preset duration), the controller 7 can control the spraying device 2 to start spraying the atomized liquid 21, to detect the broken glass substrate 1, and to prevent the front end of the glass substrate 1 from moving to a position where the atomized liquid 21 sprayed from the spraying device 2 can cover, the spraying device 2 needs to wait for the completion of the spraying device 5 before spraying the atomized liquid 21, thereby improving the detection efficiency. And the controller 7 controls the air injection device 5 to close the air injection before the spraying device 2 starts to inject the atomized liquid 21, and the controller 7 does not need to control the spraying device 2 to start to inject the atomized liquid 21 while closing the air injection, so that the interference of control signals is avoided.
The position detecting device 6 may have various structures, such as a laser detector, an infrared detection camera, an acoustic detection head, or the like. The present disclosure is not limited to the specific configuration and principle of the position detection device 6.
In the case where it is detected that there is no breakage of the glass substrate 1, the glass substrate 1 leaves the glass substrate breakage detecting system during movement, and optionally, the controller 7 may be further configured to: starting a second timer in response to the signal output from the position detection device 6 to the controller 7 changing from the second signal to the first signal; under the condition that the timing duration of the second timer reaches a third preset duration, controlling the spraying device 2 to stop spraying the atomized liquid 21; or, in the case that the timed duration of the second timer reaches a fourth preset duration, controlling the spraying device 2 to stop spraying the atomized liquid 21 and controlling the spraying device 5 to spray air.
As shown in fig. 6 and 7, when the signal output from the position detecting device 6 to the controller 7 is changed from the second signal to the first signal during the movement of the glass substrate 1 away from the glass substrate fragment detecting system, that is, when the position detecting device 6 cannot detect the glass substrate 1 (which indicates that the rear end of the glass substrate 1 has moved downstream of the position detecting device 6), the controller 7 starts the second timer, and controls the spraying device 2 to stop spraying the atomized liquid 21 when the timing duration of the second timer reaches a third predetermined duration, where the third predetermined duration may be set to be equal to or less than the movement duration of the rear end of the glass substrate 1 when the rear end of the glass substrate 1 moves from the position of the position detecting device 6 to a position just contacting with the atomized liquid 21 sprayed by the spraying device 2, so that the controller 7 controls the spraying device 2 to stop spraying the atomized liquid 21 when the timing duration of the second timer reaches the third predetermined duration, thereby avoiding the occurrence of a situation where the spraying device 2 stops spraying the atomized liquid 21 is sprayed when the timing duration of the second timer reaches the third predetermined duration The chemical solution 21 diffuses from the rear end of the glass substrate 1 to between the glass substrate 1 and the breakage detection device 3, causing a detection error of the breakage detection device 3.
Or, in the case that the timed duration of the second timer reaches a fourth preset duration, controlling the spraying device 2 to stop spraying the atomized liquid 21 and controlling the spraying device 5 to spray air. The fourth preset time period may be calibrated to be equal to the moving time period when the rear end of the glass substrate 1 moves from the position of the position detection device 6 to the position just contacting with the atomized liquid 21 sprayed by the spraying device 2, so as to avoid the atomized liquid 21 from diffusing from the rear end of the glass substrate 1 to between the glass substrate 1 and the fragment detection device 3, which causes the detection error of the fragment detection device 3, but considering that the calibration error may exist in the fourth preset time period, and the timing time period of the second timer reaches the fourth preset time period, the rear end of the glass substrate 1 already exceeds the range boundary covered by the atomized liquid 21 sprayed by the spraying device 2 and enters the coverage range of the atomized liquid 21, in this case, the atomized liquid 21 may still diffuse from the rear end of the glass substrate 1 to between the glass substrate 1 and the fragment detection device 3, and therefore in this embodiment, the controller 7 can also control the air injection device 5 to start air injection when controlling the spraying device 2 to stop injecting the atomized liquid 21, so that the atomized liquid 21 is further ensured not to be diffused between the glass substrate 1 and the fragment detection device 3 from the rear end of the glass substrate 1, and the fragment detection accuracy is improved.
In order to clean the glass substrate 1 with damage in case of detecting that the glass substrate 1 with damage exists, optionally, as shown in fig. 10, the glass substrate fragment detection system may further include an alarm device 8, and the controller 7 is connected to the fragment detection device 3 and the alarm device 8, and the controller 7 is further configured to, in response to receiving a signal output by the fragment detection device 3 and indicating that the atomized liquid 21 sprayed by the spraying device 2 passes through the second surface 12, control the alarm device 8 to alarm, control the air spraying device 5 to spray air, and control the spraying device 2 to stop spraying the atomized liquid 21. The alarm device 8 may include a buzzer, a light alarm lamp, or an audible and visual alarm combined with the buzzer and the light alarm, or the alarm device 8 may include a display screen capable of displaying a signal, which is received by the controller 7 and is output by the fragment detection device 3, indicating that the atomized liquid 21 sprayed by the spraying device 2 penetrates out of the second surface 12, so as to display a detection result and remind an operator. The present disclosure is not limited to the specific structure and principles of the alarm device 8.
The present disclosure also provides a glass substrate fragment detection method, which may be applied to a controller 7 in the glass substrate fragment detection system described above in some embodiments, the glass substrate fragment detection system includes a spraying device 2, a fragment detection device 3, and a controller 7 connected to the spraying device 2 and the fragment detection device 3, the spraying device 2 and the fragment detection device 3 are oppositely disposed at an interval along a thickness direction of the glass substrate 1, and a gap between the spraying device 2 and the fragment detection device 3 is used for the glass substrate 1 moving along a length direction of the glass substrate 1 to pass through, as shown in fig. 8, the method includes:
s801: controlling the spraying device 2 to spray atomized liquid 21 on the first surface 11 of the glass substrate 1 when the glass substrate 1 moves to the position of the spraying device 2;
s802: when the fragment detection device 3 detects that the atomized liquid 21 sprayed from the spray device 2 passes through the second surface 12 of the glass substrate 1 opposite to the first surface 11, it is determined that the glass substrate 1 is damaged.
Specifically, when the glass substrate 1 is inspected by using the glass substrate fragment inspection method, the glass substrate 1 may be moved in the longitudinal direction and pass through the gap between the spraying device 2 and the fragment inspection device 3, and when the glass substrate 1 is moved to the position of the spraying device 2, the spraying device 2 may be controlled to spray the atomized liquid 21 onto the first surface 11 of the glass substrate 1. In the case where there is no damage to the glass substrate 1, the atomized liquid 21 cannot pass through the glass substrate 1, and only is distributed on the side of the glass substrate 1 where the first surface 11 is located, and cannot reach the side of the glass substrate 1 where the second surface 12 is located opposite to the first surface 11, and in this case, the fragment detection apparatus 3 does not detect that the atomized liquid 21 passes out of the second surface 12 of the glass substrate 1, that is, there is no damage to the glass substrate 1 in a range where the glass substrate contacts the atomized liquid 21 sprayed by the spray apparatus 2; on the other hand, when the glass substrate 1 is damaged, the atomized liquid 21 sprayed by the spraying device 2 can pass through the damaged portion of the glass substrate 1 and pass out of the second surface 12 after reaching the first surface 11 of the glass substrate 1, and in this case, the fragment detection device 3 detects that the atomized liquid 21 passes out of the second surface 12 of the glass substrate 1, that is, when the fragment detection device 3 detects that the atomized liquid 21 sprayed by the spraying device 2 passes out of the second surface 12 of the glass substrate 1 opposite to the first surface 11, it is determined that the glass substrate 1 is damaged. Through the glass substrate fragment detection method, the fragment detection of the glass substrate 1 can be realized, whether the damage such as cracks, fragments and the like exists on the glass substrate 1 is detected, and the damaged glass substrate 1 is prevented from entering equipment for next processing to cause equipment damage.
Optionally, the glass substrate fragment detection system further includes a mounting plate 4, an air injection device 5, and a position detection device 6, wherein the controller 7 is connected to the air injection device 5 and the position detection device 6, the air injection device 5 and the fragment detection device 3 are both mounted on the mounting plate 4, the position detection device 6 and the fragment detection device 3 are located on the same side of the glass substrate 1, along the moving direction of the glass substrate 1, the position detection device 6 is located upstream of the fragment detection device 3 and the spraying device 2, and the position detection device 6, the fragment detection device 3, and the spraying device 2 are spaced in the moving direction of the glass substrate 1, in which case, the method provided by the embodiment of the present disclosure is as shown in fig. 9, and includes:
s901: in response to the signal output from the position detection device 6 to the controller 7 changing from a first signal, which is output in a case where the position detection device 6 does not detect the glass substrate 1, to a second signal, which is output in a case where the position detection device 6 detects the glass substrate 1, the air injection device 5 is controlled to inject air into the area between the mounting plate 4 and the glass substrate 1, and the first timer is started.
S902: and controlling the air injection device 5 to close air injection under the condition that the timing duration of the first timer reaches a first preset duration.
S903: and controlling the spraying device 2 to spray the atomized liquid 21 when the timing duration of the first timer reaches a second preset duration, wherein the second preset duration is longer than the first preset duration, and the second preset duration is the calibrated moving duration of the glass substrate 1 moving from the position of the position detection device 6 to the position of the spraying device 2.
Further, if the breakage detecting means does not detect the breakage of the glass substrate during the process of spraying the atomized liquid 21 by the spraying means 2, the steps S904 to S905 (i.e., the process of moving the glass substrate past the position of the spraying means) may be executed, wherein:
s904: the second timer is started in response to the signal output from the position detection device 6 to the controller 7 changing from the second signal to the first signal.
S905: under the condition that the timing duration of the second timer reaches a third preset duration, controlling the spraying device 2 to stop spraying the atomized liquid 21; or, in the case that the timed duration of the second timer reaches a fourth preset duration, controlling the spraying device 2 to stop spraying the atomized liquid 21 and controlling the spraying device 5 to spray air.
As shown in fig. 4, since the position detecting device 6 is located upstream of the fragment detecting device 3 and the spraying device 2, and the position detecting device 6, the fragment detecting device 3 and the spraying device 2 are arranged at an interval in the moving direction of the glass substrate 1, when the position detecting device 6 detects the glass substrate 1, the signal output by the position detecting device 6 to the controller 7 is changed from the first signal to the second signal, the front end of the glass substrate 1 has not moved to the position which can be covered by the atomized liquid 21 sprayed by the spraying device 2, and the spraying device 2 is in the state of not spraying the atomized liquid, and the controller 7 can control the spraying device 5 to start spraying air to remove the residual atomized liquid 21, and when the timing duration of the first timer reaches the first preset duration, control the spraying device 5 to stop spraying air, because the second preset duration is the preset duration, the front end of the glass substrate 1 is moved to the position which can be covered by the atomized liquid 21 sprayed by the spraying device 2 The time period is longer, and the second preset time period is longer than the first preset time period, that is, the cleaning of the residual atomized liquid 21 by the gas spraying device 5 can be completed before the front end of the glass substrate 1 moves to the position where the atomized liquid 21 sprayed by the spraying device 2 can cover,
as shown in fig. 5, when the front end of the glass substrate 1 moves to the position that the atomized liquid 21 sprayed by the spraying device 2 can cover (that is, the timing duration of the first timer reaches the second preset duration), the controller 7 can control the spraying device 2 to start spraying the atomized liquid 21, so as to perform fragment detection on the glass substrate 1, thereby avoiding the situation that the spraying device 2 can start spraying the atomized liquid 21 after the spraying of the spraying device 5 is completed when the front end of the glass substrate 1 moves to the position that the atomized liquid 21 sprayed by the spraying device 2 can cover, and thus improving the detection efficiency. And the controller 7 controls the air injection device 5 to close the air injection before the spraying device 2 starts to inject the atomized liquid 21, and the controller 7 does not need to control the spraying device 2 to start to inject the atomized liquid 21 while closing the air injection, so that the interference of control signals is avoided.
As shown in fig. 6 and 7, when the signal output from the position detecting device 6 to the controller 7 is changed from the second signal to the first signal during the movement of the glass substrate 1 away from the glass substrate fragment detecting system, that is, when the position detecting device 6 cannot detect the glass substrate 1 (which indicates that the rear end of the glass substrate 1 has moved downstream of the position detecting device 6), the controller 7 starts the second timer, and controls the spraying device 2 to stop spraying the atomized liquid 21 when the timing duration of the second timer reaches a third predetermined duration, where the third predetermined duration may be set to be equal to or less than the movement duration of the rear end of the glass substrate 1 when the rear end of the glass substrate 1 moves from the position of the position detecting device 6 to a position just contacting with the atomized liquid 21 sprayed by the spraying device 2, so that the controller 7 controls the spraying device 2 to stop spraying the atomized liquid 21 when the timing duration of the second timer reaches the third predetermined duration, thereby avoiding the occurrence of a situation where the spraying device 2 stops spraying the atomized liquid 21 is sprayed when the timing duration of the second timer reaches the third predetermined duration The chemical solution 21 diffuses from the rear end of the glass substrate 1 to between the glass substrate 1 and the breakage detection device 3, causing a detection error of the breakage detection device 3.
Or, in the case that the timed duration of the second timer reaches a fourth preset duration, controlling the spraying device 2 to stop spraying the atomized liquid 21 and controlling the spraying device 5 to spray air. The fourth preset time period may be calibrated to be equal to the moving time period when the rear end of the glass substrate 1 moves from the position of the position detection device 6 to the position just contacting with the atomized liquid 21 sprayed by the spraying device 2, so as to avoid the atomized liquid 21 from diffusing from the rear end of the glass substrate 1 to between the glass substrate 1 and the fragment detection device 3, which causes the detection error of the fragment detection device 3, but considering that the calibration error may exist in the fourth preset time period, and the timing time period of the second timer reaches the fourth preset time period, the rear end of the glass substrate 1 already exceeds the range boundary covered by the atomized liquid 21 sprayed by the spraying device 2 and enters the coverage range of the atomized liquid 21, in this case, the atomized liquid 21 may still diffuse from the rear end of the glass substrate 1 to between the glass substrate 1 and the fragment detection device 3, and therefore in this embodiment, the controller 7 can also control the air injection device 5 to start air injection when controlling the spraying device 2 to stop injecting the atomized liquid 21, so that the atomized liquid 21 is further ensured not to be diffused between the glass substrate 1 and the fragment detection device 3 from the rear end of the glass substrate 1, and the fragment detection accuracy is improved.
Optionally, the glass substrate breakage detection system may further include an alarm device 8, and the controller 7 is connected to the breakage detection device 3 and the alarm device 8, in this case, as shown in fig. 9, in the case that the glass substrate is broken, the method of the embodiment of the present disclosure may further perform steps S906 to S907. Wherein:
s906: and determining that the glass substrate is broken when the fragment detection device detects that the atomized liquid sprayed by the spraying device passes through a second surface of the glass substrate opposite to the first surface.
S907: controlling an alarm device 8 to give an alarm under the condition that the glass substrate 1 is determined to be damaged; and controls the gas injection device 5 to inject gas and controls the spraying device 2 to stop injecting the atomized liquid 21.
When the glass substrate 1 is determined to be damaged, the alarm device 8 can prompt an operator to clean the damaged glass substrate 1, and meanwhile, the controller controls the air injection device 5 to inject air and controls the spraying device 2 to stop injecting the atomized liquid 21, so that the alarm device 8 is prevented from being triggered repeatedly.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. The utility model provides a glass substrate fragment detecting system, characterized in that, includes atomizer (2) and fragment detection device (3), atomizer (2) with fragment detection device (3) set up along the relative interval of the thickness direction of glass substrate (1), just clearance between atomizer (2) and fragment detection device (3) is used for supplying to follow the length direction of glass substrate (1) removes glass substrate (1) passes, atomizer (2) be used for to the first surface (11) of glass substrate (1) sprays atomized liquid (21), fragment detection device (3) are used for detecting atomizer (2) spray atomized liquid (21) are followed glass substrate (1) with second surface (12) relative first surface (11) wear out.
2. The glass substrate breakage detection system of claim 1 further comprising a mounting plate (4) and an air jet device (5), wherein the air jet device (5) and the breakage detection device (3) are both mounted on the mounting plate (4), and the air jet device (5) is configured to jet air to an area between the mounting plate (4) and the glass substrate (1).
3. The glass substrate breakage detection system of claim 2, wherein the breakage detection device (3) comprises a photoelectric sensor including a light receiver, the photoelectric sensor is configured to generate a change in an electrical signal when the atomized liquid (21) is attached to the light receiver, the air injection device (5) comprises a plurality of air injection nozzles (51), the air injection nozzles (51) are disposed on opposite sides of each photoelectric sensor, and the air injection nozzles (51) are disposed obliquely with respect to the photoelectric sensor and configured to inject air to the light receiver.
4. The glass substrate breakage detection system according to any one of claims 1 to 3, wherein the spray device (2) comprises a liquid supply pipe (22) for containing a liquid and a plurality of spray heads (23) each communicating with the liquid supply pipe (22), the liquid supply pipe (22) extends in a width direction of the glass substrate (1), the plurality of spray heads (23) are provided at intervals on the liquid supply pipe (22) in the width direction, the spray heads (23) are used for spraying an atomized liquid (21) onto the first surface (11) of the glass substrate (1), and the plurality of spray heads (23) are provided so that the atomized liquid (21) sprayed by the spray heads (23) are all located within the first surface (11);
the glass substrate is characterized in that the fragment detection devices (3) are multiple, and the projections of the fragment detection devices (3) on the glass substrate (1) are located in the glass substrate (1).
5. The glass substrate breakage detection system according to claim 2 or 3, characterized in that the glass substrate breakage detection system further comprises a position detection device (6) and a controller (7) connected to the position detection device (6), the position detection device (6) and the breakage detection device (3) are located on the same side of the glass substrate (1), the position detection device (6) is located upstream of the breakage detection device (3) and the spraying device (2) along the moving direction of the glass substrate (1), and the position detection device (6), the breakage detection device (3) and the spraying device (2) are arranged at intervals in the moving direction of the glass substrate (1),
the controller (7) is configured to:
controlling the gas injection device (5) to inject gas in response to a change in a signal output from the position detection device (6) to the controller (7) from a first signal to a second signal, the first signal being a signal output in a case where the position detection device (6) does not detect the glass substrate (1), and the second signal being a signal output in a case where the position detection device (6) detects the glass substrate (1);
under the condition that the timing duration of the first timer reaches a first preset duration, controlling the air injection device (5) to close air injection;
and under the condition that the timing duration of the first timer reaches a second preset duration, controlling the spraying device (2) to spray the atomized liquid (21), wherein the second preset duration is longer than the first preset duration, and the second preset duration is the movement duration of the calibrated glass substrate (1) from the position of the position detection device (6) to the position of the spraying device (2).
6. The glass substrate fragment detection system of claim 5, wherein the controller (7) is further configured to:
starting a second timer in response to the signal output by the position detection device (6) to the controller (7) changing from the second signal to the first signal;
under the condition that the timing duration of the second timer reaches a third preset duration, controlling the spraying device (2) to stop spraying the atomized liquid (21); or,
and under the condition that the timing duration of the second timer reaches a fourth preset duration, controlling the spraying device (2) to stop spraying the atomized liquid (21) and controlling the air spraying device (5) to spray air.
7. The glass substrate breakage detection system of claim 5, wherein the glass substrate breakage detection system further comprises an alarm device (8), the controller (7) is connected with the breakage detection device (3) and the alarm device (8), and the controller (7) is further configured to control the alarm device (8) to alarm in response to receiving a signal output by the breakage detection device (3) and indicating that the atomized liquid (21) sprayed by the spraying device (2) passes out of the second surface (12); and,
controlling the air injection device (5) to inject air and controlling the spraying device (2) to stop injecting the atomized liquid (21).
8. A glass substrate fragment detection method is characterized in that the method is applied to a controller (7) in a glass substrate fragment detection system, the glass substrate fragment detection system comprises a spraying device (2), a fragment detection device (3) and the controller (7) connected with the spraying device (2) and the fragment detection device (3), the spraying device (2) and the fragment detection device (3) are arranged at intervals along the thickness direction of a glass substrate (1), and a gap between the spraying device (2) and the fragment detection device (3) is used for the glass substrate (1) moving along the length direction of the glass substrate (1) to pass through, and the method comprises the following steps:
controlling the spraying device (2) to spray atomized liquid (21) to the first surface (11) of the glass substrate (1) when the glass substrate (1) moves to the position of the spraying device (2);
and determining that the glass substrate (1) is damaged when the fragment detection device (3) detects that the atomized liquid (21) sprayed by the spraying device (2) penetrates out of a second surface (12) of the glass substrate (1) opposite to the first surface (11).
9. The method according to claim 8, wherein the glass substrate fragment detection system further comprises a mounting plate (4), an air jet device (5), a position detection device (6), wherein the controller (7) is connected with the air injection device (5) and the position detection device (6), the air injection device (5) and the fragment detection device (3) are both arranged on the mounting plate (4), the position detection device (6) and the fragment detection device (3) are positioned on the same side of the glass substrate (1) along the moving direction of the glass substrate (1), the position detection device (6) is located upstream of the fragment detection device (3) and the spraying device (2), the position detection device (6), the fragment detection device (3) and the spraying device (2) are arranged at intervals in the moving direction of the glass substrate (1);
the method further comprises the following steps:
controlling the gas injection device (5) to inject gas into an area between the mounting plate (4) and the glass substrate (1) in response to a change of a signal output from the position detection device (6) to the controller (7) from a first signal to a second signal, wherein the first signal is a signal output when the position detection device (6) does not detect the glass substrate (1), and the second signal is a signal output when the position detection device (6) detects the glass substrate (1), and starting a first timer;
under the condition that the timing duration of the first timer reaches a first preset duration, controlling the air injection device (5) to close air injection;
controlling the spraying device (2) to spray atomized liquid (21) when the timing duration of the first timer reaches a second preset duration, wherein the second preset duration is longer than the first preset duration and is the movement duration of the calibrated glass substrate (1) moving from the position of the position detection device (6) to the position of the spraying device (2);
starting a second timer in response to the signal output by the position detection device (6) to the controller (7) changing from the second signal to the first signal;
under the condition that the timing duration of the second timer reaches a third preset duration, controlling the spraying device (2) to stop spraying the atomized liquid (21); or under the condition that the timing duration of the second timer reaches a fourth preset duration, controlling the spraying device (2) to stop spraying the atomized liquid (21) and controlling the air spraying device (5) to spray air.
10. The method of claim 9, wherein the glass substrate breakage detection system further comprises an alarm device (8), the controller (7) being coupled to the breakage detection device (3) and the alarm device (8), the method further comprising:
controlling the alarm device (8) to give an alarm when the glass substrate (1) is determined to be damaged; and,
controlling the air injection device (5) to inject air and controlling the spraying device (2) to stop injecting the atomized liquid (21).
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| CN117405677B (en) * | 2023-12-14 | 2024-03-22 | 常州树杰塑业有限公司 | Plastic film crack detection device |
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