CN106825947B - Light guide plate laser accurate microfabrication, cleaning and suction means - Google Patents
Light guide plate laser accurate microfabrication, cleaning and suction means Download PDFInfo
- Publication number
- CN106825947B CN106825947B CN201611237918.3A CN201611237918A CN106825947B CN 106825947 B CN106825947 B CN 106825947B CN 201611237918 A CN201611237918 A CN 201611237918A CN 106825947 B CN106825947 B CN 106825947B
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- light guide
- guide plate
- unit
- laser
- cleaning
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The invention discloses a kind of light guide plate laser accurate microfabrication, cleaning and suction means, including pickup unit, cleaning unit, transmission unit and processing unit；The pickup unit is moved to cleaning unit after picking up light guide plate, or light guide plate is transferred to transmission unit by cleaning unit；The cleaning unit cleans light guide plate；Light guide plate is delivered to the machining area of processing unit by the transmission unit；The processing unit processes light guide plate using laser.Light guide plate is cleaned automatically before processing, removes various residues, greasy dirt of light guide plate etc., improves the quality and precision of processing.Using automatic pick-up device, the degree of automation is improved, the efficiency of processing is improved, reduces cost.By multiple unit co-ordinations, the automated production of light guide plate scattering netted dot processing is realized.
Description
Technical field
The invention belongs to high-end laser manufacturing equipment and advanced machining technology fields, and in particular to a kind of light guide plate laser essence
Close microfabrication, cleaning and suction means.
Background technique
With the arrival of information age, display has become the standard interface of man-machine communication.It is aobvious in the plate of new century
Show in field, technology maturation, cheap, be in leading position surely belongs to liquid crystal display (LCD).Moreover, one section following
Within time, LCD will be the mainstream in FPD (FPD), wherein accounted for the largest percentage with TFT-LCD again.
Low emissivity, volume be light and short, power consumption because having for liquid crystal display (Liquid Crystal Display, LCD)
Few characteristic and instead of cathode-ray tube display, become the mainstream in market.LCD TV, computer screen, Industry Control are set
Standby, 3C Product etc. all largely uses LED instead as show tools.The composition of LED mainly includes liquid crystal display panel and backlight module two
Point.Backlight module is the important spare part of liquid crystal display, accounts for the 20% of its material cost, is only second to colored filter.And
The part of most critical is exactly light guide plate in entire backlight module, and function is the direction for guiding light and advancing, by linear light source or point
Light source becomes uniform area source.The uniformity for obtaining the light of the display picture backlight injection of high-quality is extremely important, leads
Tabula rasa is exactly the critical optical element for reaching this purpose, and direction required for light can be oriented to by it reaches requirement
Brightness and the uniformity.During light guide plate exploitation, the performance of light guide plate is still decided by the distribution of guide-lighting scattering netted dot, and
In current design method, there are problems that net-pont design low efficiency, effect are unable to get guarantee.
Currently, the manufacturing method of light guide plate scattering netted dot has mould forming method, ink printing method and laser processing method etc., but
It is, since some impurity, greasy dirt etc. that light guide plate surface itself has are not got rid of, to influence leaded light in all process
The processing quality of plate scattering netted dot is easy to cause light guide plate scattering netted dot processing fraction defective height and the problem of processing efficiency is low.
Summary of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, providing, a kind of light guide plate laser accurate is fine to be added
Work, cleaning and suction means, light guide plate are cleaned automatically before processing, are removed various residues, greasy dirt of light guide plate etc., are mentioned
The quality and precision of height processing.Using automatic pick-up device, the degree of automation is improved, the efficiency of processing is improved, reduces cost.
By multiple unit co-ordinations, the automated production of light guide plate scattering netted dot processing is realized.
To achieve the above object, the present invention adopts the following technical solutions:
Light guide plate laser accurate microfabrication, cleaning and suction means,
Including pickup unit, cleaning unit, transmission unit and processing unit；
The pickup unit is moved to cleaning unit after picking up light guide plate, or light guide plate is transferred to by cleaning unit
Transmission unit；
The cleaning unit cleans light guide plate；
Light guide plate is delivered to the machining area of processing unit by the transmission unit；
The processing unit processes light guide plate using laser.
The pickup unit includes the first reciprocating device, and the first reciprocating device lower part is connect with the first suction nozzle,
It is attracted with light guide plate that the up and down motion of first reciprocating device drives the first suction nozzle to move up and down.
First reciprocating device is driven by the first connection frame and the first rotation axis connection, the rotation of the first rotation axis
First reciprocating device rotates set angle.
First reciprocating device lower part is additionally provided with first pressure sensor, first pressure sensor and controller
Communication；First suction nozzle is connect by pipeline with the first blower, and the first blower is connect with controller.
The pickup unit further includes the second reciprocating device, and the second reciprocating device lower part and the second suction nozzle connect
It connects, it is attracted with light guide plate that the up and down motion of the second reciprocating device drives the second suction nozzle to move up and down.
Second reciprocating device is driven by the second connection frame and the second rotation axis connection, the rotation of the second rotation axis
Second reciprocating device rotates set angle.
Second reciprocating device lower part is additionally provided with second pressure sensor, second pressure sensor and controller
Communication；Second suction nozzle is connect by pipeline with the second blower, and the second blower is connect with controller.
The cleaning unit includes cleaning case, and the cleaning case bottom is provided with supersonic generator.
The cleaning case is built-in with cleaning agent, and the cleaning case lower part is equipped with discharge opening.
Preferably, the support platform of adjustment height is set in the cleaning case.When needing mobile light guide plate, support is flat
Platform, which rises, sends out cleaning liquid level for light guide plate, and cleaning solution is sucked suction nozzle when picking up light guide plate to prevent pickup unit.
The support platform includes supporting plate, and multiple telescopic rods are arranged in the supporting plate bottom.
The processing unit includes generating device of laser, and the generating device of laser is matched with XY axis mobile station, XY axis
Mobile station drives generating device of laser mobile in the direction XY, and generating device of laser issues to be processed on laser to light guide plate.
The generating device of laser includes laser, and the light beam that the laser issues is transferred to reflection by shutter device
Mirror, reflecting mirror will be in laser transfers to light guide plate by laser transfer to condenser lens, condenser lens.
Light guide plate is placed on lathe by operator, and pickup unit is sucked up light guide plate by suction nozzle, by light guide plate
It is transported at cleaning unit position, is placed on the supporting plate of cleaning unit, carry out ultrasonic cleaning.After cleaning terminates, pick up single
Light guide plate is placed into the processing that next step is carried out on conveyer belt by member.Light guide plate is transmitted to specified machining position by conveyer belt
It sets, XY axis mobile station is moved according to setting track, to drive processing unit motion, processes specified pattern.
The invention has the benefit that
1, the cleaning unit that the present invention is arranged can remove the dirt on light guide plate, further increase product quality, realize
Pipelining.
2, present invention setting pickup unit, with automatic sucking light guide plate and can be moved, can use manpower and material resources sparingly, mention
High efficiency, save the cost.
3, present invention setting pressure sensor and pickup unit cooperate, and can accurately guarantee seamless between suction nozzle and light guide plate
Gap guarantees that light guide plate is lifted and comes.
4, shutter device is arranged in the generating device of laser of processing unit in the present invention, can control Laser pulse time,
To control the density of light guide plate mesh point.
5, the present invention is operated by the mating continuous-flow type of pickup unit, cleaning unit, transmission unit and processing unit, so that
Coordinate to carry out between each step, saves the time, high degree of automation.Not only light guide plate is carried out by fully automatic system clear
It washes, and greatly improves the precision and quality of light guide plate processing, efficiently reduce the defect rate of workpiece.
Detailed description of the invention
Fig. 1 is apparatus of the present invention pickup unit, cleaning unit, transmission unit cooperation schematic diagram；
Fig. 2 is transmission unit and processing unit matching schematic diagram；
Fig. 3 is the structural schematic diagram of apparatus of the present invention；
Fig. 4 is the top view of apparatus of the present invention；
Fig. 5 is suction means main view of the present invention；
Fig. 6 is suction means top view of the present invention；
Fig. 7 is telescoping mechanism main view of the present invention；
Fig. 8 is telescoping mechanism left view of the present invention；
In figure, 1 is lathe；2 be light guide plate；3 be the first suction nozzle；4 be pressure sensor；5 be pipeline；6 be the first cylinder；
7 be the first connection frame；8 be first carriage；9 be the first rotation axis；10 be supporting table；11 be cabinet；12 be discharge opening；13 are
Supersonic generator；14 be supporting table；15 be the second rotation axis；16 be the second connection frame；17 be the second cylinder；18 be second sliding
Moving frame；19 be the second suction nozzle；20 be pressure sensor；21 be pipeline；22 be condenser lens；23 be laser；24 be wheel frame；25 are
Reflecting mirror；26 be shutter device；27 be laser；28 be XY axis mobile station；29 be bracket；30 be conveyer belt；31 be supporting plate；32
It is telescopic rod.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
It is the cooperation schematic diagram between the process and each unit of apparatus of the present invention such as Fig. 1-Fig. 2.Fig. 3-Fig. 4 is the present invention
The structural schematic diagram of device.
The inventive system comprises: sensing unit 200: for detecting the pressure between suction nozzle and light guide plate；Pickup unit
202: the component for being transmitted to light guide plate；Cleaning unit 203: for being cleaned to the light guide plate of processing；It passes
Send unit 204: for transmitting processing light guide plate；Control unit 201: being to the sensing unit in laser processing device, cleaning
The unit that unit, pickup unit and transmission unit, processing unit, mobile unit are controlled, control each unit are coordinated to carry out；Add
Work order member 206: it is used for the light guide plate and is processed；Mobile unit 205: the movement of control processing unit.
Sensing unit 200, referring to Fig. 3, Fig. 5, comprising: first pressure sensor 4, second pressure sensor 20.Pacify respectively
Center loaded on sliding rack 8 and sliding rack 18, it is contour with the bottom of the first suction nozzle 3, the second suction nozzle 19, for incuding the
Pressure between one suction nozzle 3, the second suction nozzle 19 and light guide plate 2.
Pickup unit 202, referring to Fig. 3, Fig. 4, Fig. 5, Fig. 6, comprising: the first suction nozzle 3, the second suction nozzle 19, the first cylinder 6,
Second cylinder 17, the first connection frame 7, the second connection frame 16, first carriage 8, second carriage 18, the first rotation axis 9, second
Rotation axis 15, the first supporting table 10, the second supporting table 14.Its transmitting for being used for light guide plate.First cylinder 6 and first carriage 8
The first reciprocating device is formed, the second cylinder 17 and second carriage 18 form the second reciprocating device；Reciprocating movement machine
Structure can also be pneumatic element or Hydraulic Elements or other mechanical mechanisms, suction nozzle can be driven to move back and forth up and down.
Pickup unit shares two groups of identical devices, wherein one group of specific connection type is as follows: supporting table 10 and lathe 1
It is connected, and is fixed on lathe 1, the first rotation axis 9 is connected with supporting table 10, and the first rotation axis 9 can be in supporting table
It is rotated on 10, while the first rotation axis 9 can be rotated with 1800 directions.First cylinder 6 forms a cunning with first carriage 8
Motivation structure, the i.e. Upper cylindrical section of first carriage 8 are nested into the first cylinder 6, can be moved up and down.4 first
Suction nozzle 3 is at square arrangement on the bottom end platform of first carriage 8.Pipeline in first suction nozzle, 3 bottom and first carriage 8
5 are connected, and 5 other end of pipeline is given a dinner for a visitor from afar machine, and blower can carry out positive and negative rotation, to carry out air-breathing and air blowing.First cylinder 6 and
Sliding equipment and the first rotation axis 9 of one sliding rack 8 composition pass through the first connection frame 7 and are connected, and sliding equipment and the
One suction nozzle 3 can carry out identical movement under the movement of the first rotation axis 9, it can rotation 1800.14, second turns of supporting table
Moving axis 15, the second connection frame 16, the second cylinder 17, second carriage 18, the second suction nozzle 19, pipeline 21 and said combination mode phase
Together, another group of device is formed.
Cleaning unit 203, referring to Fig. 3, Fig. 4, Fig. 7, Fig. 8, comprising: cabinet 11, discharge opening 12, supersonic generator 13,
Supporting plate 31, telescopic rod 32.
The specific combination of cleaning unit 203 is as follows: cabinet 11 is installed on lathe 1, and ultrasound is installed inside cabinet 11
Wave producer 13 opens a discharge opening 12 in 11 bottom of cabinet, installs a support platform that can be stretched inside cabinet 11.
Support platform is made of supporting plate 31 and telescopic rod 32, telescopic rod 32 totally 12, forms 4 groups of telescoping mechanisms altogether, 4 groups are stretched
One end of contracting mechanism is connected with the bottom of cabinet 11, and the other end is connected with supporting plate 31, and support platform can be adjusted with free extension
Position height.
Transmission unit 204, referring to Fig. 3, Fig. 4.Including conveyer belt 30.It is used to transmit processing light guide plate 2.
Processing unit 206 includes: laser 27, shutter device 26, mirror part.
Laser 27 is continuous CO 2 laser device.
Shutter device 26 includes: mechanical Q-switching device.
Shutter device 26 is installed on the front of laser 27, and it acts as the laser 23 for exporting laser 27 by continuous
Laser becomes pulse laser, and adjusts pulse width as needed.
Frame 24 is taken turns, reflecting mirror fixed installation is used for.
Reflecting mirror includes: reflecting mirror 25, is installed on the topmost of wheel frame 24, changes the biography that laser 23 occurs for laser 27
Direction is passed, so that its direction is changed 90 °, transmits downwards；Condenser lens 22, is installed on the lowest part of wheel frame, and focusing mirror passes
The laser 23 passed.
Mobile unit 205 includes: XY axis mobile station 28.
XY axis mobile station 28, laser 27 are set in XY axis mobile station 28, and XY axis mobile station 28 drives processing unit 206
Movement in the direction XY, for the processing to 2 pattern of light guide plate.
Transmission unit 204 includes: conveyer belt 30, is used to process the transmission with light guide plate 2.
Control unit 201: being to sensing unit 200, cleaning unit 203,202 and of pickup unit in laser processing device
The unit that transmission unit 204, processing unit 206, mobile unit 205 are controlled.
Specific workflow of the invention is as follows: light guide plate 2 is placed on lathe 1 by operator, first group of pickup dress
The first carriage 8 set declines, and the first suction nozzle 3 is in contact with light guide plate 2, and compresses, and the measurement of first pressure sensor 4 first is inhaled
Pressure between mouth 3 and light guide plate 2, this pressure value needs are set in advance, to ensure to be in close contact between the two, guarantee
It is enough to suck up light guide plate, and be unlikely to fall.When reaching set pressure value, due to 3 bottom end of the first suction nozzle and pipeline 5
It is connected, control unit 201 carries out air-breathing to pipeline 5 by blower, and vacuum shape is formed between such light guide plate 2 and the first suction nozzle 3
State picks up light guide plate under atmospheric pressure.After picking up light guide plate 2, the rotation of the first rotation axis 9 goes to cleaning unit
The position of supporting plate 31 in 203 cabinet 11, then motor rotates backward, and is inflated, and such light guide plate 2 is fallen down, and falls into cabinet
In 11 on supporting plate 31, then cleaning starts.At this moment the first rotation axis 9 rotates, and returns to original position, repeats to operate.
Light guide plate 2 in cabinet 11 is made of after cleaning the time set by us supporting plate 31 and telescopic rod 32
Telescoping mechanism moves upwards, and light guide plate is lifted out on aqueous cleaning agent liquid level, and when motor being avoided to rotate, pipeline 21 sucks water
Based cleaning agent.The 2nd group of pick device setting in motion, the second rotation axis 15 turn to the surface of cleaning device supporting plate 31 simultaneously,
Then second carriage 18 declines, and the second suction nozzle 19 is contacted with light guide plate 2, squeezed, when second pressure sensor 20 measures second
When the value of pressure and setting between suction nozzle 19 and light guide plate 2 is suitable, since 19 bottom end of the second suction nozzle is connected with pipeline 21, control
Unit 201 carries out air-breathing to pipeline 21 by blower, vacuum state is formed between such light guide plate 2 and the second suction nozzle 19, big
Under the action of air pressure, light guide plate is picked up, and then the second rotation axis 15 turns an angle, and light guide plate 2 is placed into conveyer belt
On 30, next step processing is carried out.
Light guide plate 2 is sent to by conveyer belt 30 in specified Working position.When light guide plate 2 reaches specified position
When, XY axis mobile station 28 according to control unit instruction it is achievable setting pattern processing, XY axis mobile station 28 can carry out X and
The movement of Y-direction can process two-dimensional pattern on light guide plate 2.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (3)
1. light guide plate laser accurate microfabrication, cleaning and suction means, characterized in that
Including pickup unit, cleaning unit, transmission unit and processing unit；
The pickup unit is moved to cleaning unit after picking up light guide plate, or light guide plate is transferred to transmission by cleaning unit
Unit, the pickup unit include the first reciprocating device, and the first reciprocating device lower part is connect with the first suction nozzle, and first
It is attracted with light guide plate that reciprocating device up and down motion drives the first suction nozzle to move up and down, under first reciprocating device
Portion is additionally provided with first pressure sensor, and first pressure sensor and the bottom of the first suction nozzle are contour, first pressure sensor with
Controller communication, first suction nozzle by pipeline with can the first blower of positive and negative rotation connect, the first blower is connect with controller；
First reciprocating device drives first by the first connection frame and the first rotation axis connection, the rotation of the first rotation axis
Reciprocating device rotates set angle, and the first reciprocator is made of the first cylinder with first carriage, first carriage
Upper cylindrical section nests into the first cylinder, can move up and down；
The pickup unit further includes the second reciprocating device, and the second reciprocating device lower part is connect with the second suction nozzle, the
It is attracted with light guide plate that the up and down motion of two reciprocating devices drives the second suction nozzle to move up and down；
Second reciprocating device drives second by the second connection frame and the second rotation axis connection, the rotation of the second rotation axis
Reciprocating device rotates set angle；Second reciprocating device lower part is additionally provided with second pressure sensor, and second
Pressure sensor is communicated with controller；Second suction nozzle by pipeline with can the second blower of positive and negative rotation connect, the second blower
It is connect with controller, the second reciprocator is made of the second cylinder with second carriage, the Upper cylindrical section of second carriage
It nests into the second cylinder, can move up and down；
The cleaning unit cleans light guide plate, and the cleaning unit includes cleaning case, and the cleaning case bottom is set
It is equipped with supersonic generator, the cleaning case is built-in with cleaning agent, and the cleaning case lower part is equipped with discharge opening, the cleaning
The support platform of setting adjustment height in cabinet, the support platform includes supporting plate, and multiple telescopic rods are arranged in the supporting plate bottom；
Light guide plate is delivered to the machining area of processing unit by the transmission unit；
The processing unit processes light guide plate using laser.
2. device as described in claim 1, characterized in that the processing unit includes generating device of laser, the laser hair
Generating apparatus is matched with XY axis mobile station, and XY axis mobile station drives generating device of laser mobile in the direction XY, generating device of laser
It issues and is processed on laser to light guide plate.
3. device as claimed in claim 2, characterized in that the generating device of laser includes laser, the laser hair
Light beam out is transferred to reflecting mirror by shutter device, and reflecting mirror is by laser transfer to condenser lens, and condenser lens is by laser
It is handed on light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237918.3A CN106825947B (en) | 2016-12-28 | 2016-12-28 | Light guide plate laser accurate microfabrication, cleaning and suction means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237918.3A CN106825947B (en) | 2016-12-28 | 2016-12-28 | Light guide plate laser accurate microfabrication, cleaning and suction means |
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| Publication Number | Publication Date |
|---|---|
| CN106825947A CN106825947A (en) | 2017-06-13 |
| CN106825947B true CN106825947B (en) | 2019-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611237918.3A Active CN106825947B (en) | 2016-12-28 | 2016-12-28 | Light guide plate laser accurate microfabrication, cleaning and suction means |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107088489B (en) * | 2017-06-23 | 2018-04-03 | 广东谷麦光电科技股份有限公司 | Full-automatic light guide plate prosthetic device |
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| CN204338508U (en) * | 2014-12-09 | 2015-05-20 | 阿法拉伐流体设备（昆山）有限公司 | Two groove lift supersonic wave cleaning machines |
| CN104668385A (en) * | 2015-02-13 | 2015-06-03 | 维特罗伯特机械（苏州）有限公司 | Feeding machine |
| CN106216849A (en) * | 2016-09-05 | 2016-12-14 | 青岛理工大学 | Light guide plate laser accurate microfabrication device and method |
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| KR101256954B1 (en) * | 2010-06-15 | 2013-04-25 | (주)엔에스 | Roll-film cutting apparatus utilizing a laser |
| CN102350593A (en) * | 2011-11-07 | 2012-02-15 | 苏州德龙激光有限公司 | Full-automatic charging-discharging mechanism used for LED (Light Emitting Diode) laser cutting |
| CN202943366U (en) * | 2012-11-26 | 2013-05-22 | 黄信 | Electrode plate laser cutting automatic production line |
| CN204893216U (en) * | 2015-08-25 | 2015-12-23 | 四川芯联发电子股份有限公司 | Beat mark chip marking machine of high quality |
| CN206519659U (en) * | 2016-12-28 | 2017-09-26 | 青岛理工大学 | Light guide plate laser accurate microfabrication, cleaning and suction means |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204338508U (en) * | 2014-12-09 | 2015-05-20 | 阿法拉伐流体设备（昆山）有限公司 | Two groove lift supersonic wave cleaning machines |
| CN104668385A (en) * | 2015-02-13 | 2015-06-03 | 维特罗伯特机械（苏州）有限公司 | Feeding machine |
| CN106216849A (en) * | 2016-09-05 | 2016-12-14 | 青岛理工大学 | Light guide plate laser accurate microfabrication device and method |
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