CN111707445A - Automatic piece device and test system that send of display screen - Google Patents
Automatic piece device and test system that send of display screen Download PDFInfo
- Publication number
- CN111707445A CN111707445A CN202010709007.6A CN202010709007A CN111707445A CN 111707445 A CN111707445 A CN 111707445A CN 202010709007 A CN202010709007 A CN 202010709007A CN 111707445 A CN111707445 A CN 111707445A
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- display screen
- wheel
- rod
- belt
- transmission
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- 230000005540 biological transmission Effects 0.000 claims abstract description 81
- 238000004140 cleaning Methods 0.000 claims abstract description 41
- 230000000149 penetrating effect Effects 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/10—Cleaning devices
- B65G45/18—Cleaning devices comprising brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
- B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
- B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Displays For Variable Information Using Movable Means (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses an automatic piece feeding device for a display screen, which comprises a bottom plate, wherein a guide wheel is arranged in a guide belt, and the display screen is placed on the guide belt; a first brush is arranged on the display screen cleaning plate, and a driven wheel is fixedly arranged on the outer side of the rotating rod in a penetrating manner; a second brush is arranged on one side, close to the guide belt, of the driving belt cleaning plate, a driving wheel is fixedly arranged on the rotary threaded rod, and the driving wheel is arranged in the linkage belt; the transmission rod is fixedly provided with a transmission bevel gear in a penetrating mode, and the bottom of the transmission rod is fixedly provided with a pedal. The invention provides an automatic display screen feeding device which can automatically control a guide belt to be rapidly switched between running and stopping, test a current display screen when the guide belt is stopped, and automatically switch a power source to clean the display screen to be tested.
Description
Technical Field
The invention relates to the technical field of display screen processing, in particular to an automatic display screen feeding device and a test system.
Background
In the prior art, the application number '201811370951.2' is a conveying device for processing mobile phone screens, which comprises two connecting plates, the number of the connecting plates is two, the lower surfaces of the connecting plates are fixedly connected with the upper surface of a bottom plate through supporting rods, bearings are clamped on the left side and the right side of the opposite surfaces of the two connecting plates, and rotating shafts are sleeved in the bearings, the conveying device for processing mobile phone screens firstly takes off a fixed shell and then leads an electric push rod to extend to drive a brush to move downwards to be contacted with a conveying belt through the mutual matching of an air nozzle, an air pump, the brush, an electric push rod, a dustproof shell and the connecting plates, then leads a motor and the air pump to work simultaneously, can drive the conveying belt to rub against the brush, and simultaneously can clean dust on the surface of the conveying belt through the air nozzle, can prevent the dust accumulated on the surface of the conveying belt or the residues brought by the screen, the transmission process of the collecting screen is safer.
However, the method still has the obvious defects in the using process: 1. the conveying belt in the device is always in a running state, and when a display screen on the conveying belt needs to be tested, the quick switching between running and stopping of the conveying belt cannot be flexibly controlled; 2. above-mentioned device can only clear up the conveyer belt, can not clean the display screen, when having attached to more dust on the display screen, can influence assembly and test, if the manual work clears up one by one, then can aggravate artifical burden, reduce work efficiency.
Disclosure of Invention
The invention aims to provide an automatic display screen feeding device and a test system, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic piece conveying device for a display screen comprises a bottom plate, wherein a plurality of supporting columns are fixedly arranged on the bottom plate, a rotating shaft is movably arranged on one side, away from the bottom plate, of each supporting column in a penetrating mode, the rotating shaft is fixedly arranged at the center of a guide wheel, the guide wheel is arranged in a guide belt, and the display screen is placed on the guide belt;
a cross beam is arranged above the guide belt, a first bearing seat is embedded in one side, close to the guide belt, of the cross beam, a rotating rod is movably arranged in the first bearing seat, a threaded groove is formed in the rotating rod, an adjusting threaded rod is arranged in the threaded groove in a threaded manner, a display screen cleaning plate is fixedly arranged at one end, far away from the rotating rod, of the adjusting threaded rod, a first brush is arranged on the display screen cleaning plate, and a driven wheel is fixedly arranged on the outer side of the rotating rod in a penetrating manner;
a rotating motor is embedded in the bottom plate, a rotating threaded rod is fixedly arranged at the output end of the rotating motor, a driving belt cleaning plate is movably arranged on the rotating threaded rod in a penetrating mode, a second hairbrush is arranged on one side, close to the guide belt, of the driving belt cleaning plate, a driving wheel is fixedly arranged on the rotating threaded rod, the driving wheel is arranged in a linkage belt, a driving column and a positioning wheel are arranged in the linkage belt, and the positioning wheel is arranged on one side, far away from the driving wheel, and used for supporting the linkage belt;
a transmission rod is fixedly arranged at the center of the transmission column in a penetrating mode, a transmission wheel is fixedly arranged on one side, close to the driven wheel, of the transmission rod, a transmission bevel gear is fixedly arranged on the transmission rod in a penetrating mode, a pedal is fixedly arranged at the bottom of the transmission rod, a pressing block is arranged below the pedal and movably arranged in a groove formed in the bottom plate, and a spring is connected between the pressing block and the groove;
the bottom plate is fixedly provided with an upright post, a connecting rod is movably arranged in the upright post in a penetrating mode, two ends of the connecting rod are respectively arranged at the centers of the first transmission bevel gear and the second transmission bevel gear, the second transmission bevel gear and the third transmission bevel gear are meshed, and the third transmission bevel gear is fixed at one end, far away from the guide wheel, of the rotating shaft.
Preferably, both sides of the driving belt cleaning plate are respectively provided with a limiting nut, and the limiting nut is movably arranged on the rotary threaded rod in a threaded manner.
Preferably, a connecting column is fixedly arranged at one end, close to the bottom plate, of the positioning wheel, the connecting column is movably arranged in a second bearing seat, and the second bearing seat is embedded in the bottom plate.
A test system comprises the automatic piece conveying device for the display screen.
Compared with the prior art, the invention has the beneficial effects that:
1. the guide belt can be stopped at any time, so that a user can conveniently test the display screens on the guide belt one by one, the guide belt can be automatically controlled to be rapidly switched between running and stopping, and the use is convenient;
2. when the guide belt stops, the driving wheel drives the driven wheel to operate, so that the first brush on the display screen cleaning plate rotates to clean the display screen to be tested, the test result is prevented from being influenced by attached dust, the cleaning is mainly performed on the display screen to be tested, and the dust in the air can not be attached again due to too early cleaning;
3. no matter the guide belt is in a running state or a stopping state, as long as the rotating motor is in a working state, the second brush on the driving belt cleaning plate is always in a rotating state, so that the guide belt is continuously cleaned, and dust attached to the guide belt is prevented from being adhered to a display screen;
4. the driving belt cleaning plate is movably arranged on the rotary threaded rod, so that the position of the driving belt cleaning plate can be adjusted, whether the driving belt cleaning plate can clean the guide belt or not is further adjusted, and the problem that the guide belt is abraded due to the fact that a certain section of the guide belt is continuously cleaned for a long time by the second brush on the driving belt cleaning plate is solved.
The invention provides an automatic display screen feeding device which can automatically control a guide belt to be rapidly switched between running and stopping, test a current display screen when the guide belt is stopped, and automatically switch a power source to clean the display screen to be tested.
Drawings
FIG. 1 is a schematic front sectional view of the overall structure of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the invention at B in FIG. 1;
FIG. 4 is an enlarged view of the present invention at C of FIG. 1;
fig. 5 is a cross-sectional view of the rotary lever connection structure of the present invention.
In the figure: 1, 2 support columns, 3 rotating shafts, 4 guide wheels, 5 guide belts, 6 display screens, 7 cross beams, 8 bearing seat I, 9 rotating rods, 901 thread grooves, 10 adjusting threaded rods, 11 display screen cleaning plates, 12 first brushes, 13 driven wheels, 14 rotating motors, 15 rotating threaded rods, 16 transmission belt cleaning plates, 17 second brushes, 18 limit nuts, 19 driving wheels, 20 linkage belts, 21 transmission columns, 22 transmission rods, 23 transmission wheels, 24 transmission bevel gears, 25 pedals, 26 pressing blocks, 27 grooves, 28 springs, 29 positioning wheels, 30 connecting columns, 31 bearing seat II, 32 upright columns, 33 connecting rods, 34 transmission bevel gear I, 35 transmission bevel gear II and 36 transmission bevel gear III.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution:
the utility model provides an automatic piece device that send of display screen, includes bottom plate 1, fixedly on the bottom plate 1 being provided with a plurality of support columns 2, one side activity that bottom plate 1 was kept away from to support column 2 runs through and is provided with pivot 3, and pivot 3 can be rotatory in support column 2, and pivot 3 is fixed to be set up in the center department of leading wheel 4, and leading wheel 4 sets up in guidance tape 5, and leading wheel 4 drives the operation of guidance tape 5, has placed display screen 6 on the guidance tape 5.
The top of guidance tape 5 is provided with crossbeam 7, crossbeam 7 is embedded to be provided with bearing frame 8 in the one side that is close to guidance tape 5, the activity is provided with rotary rod 9 in the bearing frame 8, rotary rod 9 can be rotatory in bearing frame 8, threaded groove 901 has been seted up in the rotary rod 9, the screw thread is provided with adjusting threaded rod 10 in the threaded groove 901, adjusting threaded rod 10 can be rotatory with the adjusting position at threaded groove 901, and then adjust the distance of display screen 6 on first brush 12 and the guidance tape 5, thereby adapt to the display screen 6 of different thickness, adjusting threaded rod 10 keeps away from the fixed display screen cleaning plate 11 that is provided with of one end of rotary rod 9, be provided with first brush 12 on the display screen cleaning plate 11, first brush 12 mainly is used for cleaning display screen 6, the fixed driven wheel 13 that runs through in the outside of rotary rod 9.
The embedded rotating electrical machines 14 that are provided with in the bottom plate 1, the fixed rotating threaded rod 15 that is provided with of output end of rotating electrical machines 14, the activity runs through on the rotating threaded rod 15 and is provided with the clean board 16 of drive belt, the clean board 16 one side that is close to the guidance tape 5 of drive belt is provided with second brush 17, second brush 17 mainly used cleans the guidance tape 5, the fixed action wheel 19 that is provided with on the rotating threaded rod 15, action wheel 19 sets up in linkage area 20, be provided with drive column 21 and locating wheel 29 in the linkage area 20, locating wheel 29 sets up in the one side of keeping away from action wheel 19, be used for propping up linkage area 20, play the effect of both ends location.
A transmission rod 22 is fixedly arranged at the center of the transmission column 21 in a penetrating manner, a transmission wheel 23 is fixedly arranged on one side of the transmission rod 22 close to the driven wheel 13, the transmission wheel 23 can drive the driven wheel 13 to rotate, so that the first brush 12 on the display screen cleaning plate 11 rotates to clean the display screen 6, a transmission bevel gear 24 is fixedly arranged on the transmission rod 22 in a penetrating manner, a pedal 25 is fixedly arranged at the bottom of the transmission rod 22, a pressing block 26 is arranged below the pedal 25, the pressing block 26 is movably arranged in a groove 27 formed in the bottom plate 1, a spring 28 is connected between the pressing block 26 and the groove 27, when the spring 28 is in a no-external-force state, the transmission wheel 23 on the transmission rod 22 can drive the driven wheel 13 to rotate to clean the display screen 6 to be tested, when a user steps on the pedal 25 downwards, the spring 28 is extruded, and the transmission wheel, the driven wheel 13 is not rotated any more, and the transmission rod 22 moves downwards, so that the transmission bevel gear 24 drives the transmission bevel gear 34 to rotate, and further the guide wheel 4 rotates, and the guide belt 5 is in a running state.
The base plate 1 is fixedly provided with an upright column 32, a connecting rod 33 is movably arranged in the upright column 32 in a penetrating manner, the connecting rod 33 can rotate in the upright column 32, two ends of the connecting rod 33 are respectively arranged at the centers of a first transmission bevel gear 34 and a second transmission bevel gear 35, the second transmission bevel gear 35 and a third transmission bevel gear 36 are meshed, the third transmission bevel gear 36 is fixed at one end of the rotating shaft 3, which is far away from the guide wheel 4, so that the guide wheel 4 is driven to rotate, and finally the guide belt 5 is driven to rotate.
Preferably, the two sides of the driving belt cleaning plate 16 are respectively provided with a limit nut 18, the limit nuts 18 are movably arranged on the rotary threaded rod 15 in a threaded manner, the positions of the limit nuts 18 on the rotary threaded rod 15 can be adjusted, and then the positions of the driving belt cleaning plate 16 can be adjusted and limited, if the guide belt 5 needs to stop for too long time when the display screen 6 is tested, the second brush 17 on the driving belt cleaning plate 16 can be moved to the position where the second brush 17 is not in contact with the guide belt 5, and the problem that the guide belt 5 is abraded too fast due to repeated rotation and cleaning of the same position of the guide belt 5 by the second brush 17 on the driving belt cleaning plate 16 is avoided.
Preferably, one end of the positioning wheel 29 close to the bottom plate 1 is fixedly provided with a connecting column 30, the connecting column 30 is movably arranged in a second bearing seat 31, the connecting column 30 can rotate in the second bearing seat 31, and the second bearing seat 31 is embedded in the bottom plate 1 to play a role of movable support.
A test system comprises the automatic film feeding device for the display screen.
The working principle is as follows: when in use, firstly, the display screen 6 is placed on the guide belt 5, then the rotating motor 14 is started, firstly, the rotating motor drives the driving wheel 19 to rotate through the rotating threaded rod 15, the driving wheel 19 drives the transmission post 21 to rotate through the linkage belt 20, the transmission post 21 drives the transmission rod 22 to rotate, at this time, a user can step on the pedal 25 to enable the transmission rod 22 to descend, the transmission post 21 is still in the linkage belt 20, therefore, the transmission rod 22 is still in a rotating state, then the transmission rod 22 drives the transmission bevel gear 24 to rotate, the transmission bevel gear 24 drives the transmission bevel gear one 34 to rotate, the transmission bevel gear one 34 drives the transmission bevel gear two 35 to rotate through the connecting rod 33, the transmission bevel gear two 35 drives the transmission bevel gear three 36 to rotate, further, the guide wheel 4 fixed on the same rotating shaft 3 with the transmission bevel gear is enabled to rotate, the, entering a test bit; secondly, after the display screen 6 reaches a proper test position, a user loosens the pedal 25, so that the transmission rod 22 moves upwards under the action of the spring 28, at the moment, the transmission bevel gear 24 is far away from the transmission bevel gear 34, the guide belt 5 does not run any more, at the moment, the transmission wheel 23 on the transmission rod 22 drives the driven wheel 13 to rotate, so that the driven wheel 13 drives the first brush 12 on the display screen cleaning plate 11 to rotate through the rotating rod 9 and the adjusting threaded rod 10, and the display screen 6 to be tested is cleaned, so that circulation is realized, the current display screen 6 is tested, the display screen 6 to be tested is cleaned at the same time, more manual assistance is not needed, the efficiency is higher, the cleaning time is reasonable, and the problem that tiny dust in air is attached to the display screen 6 again due to too early cleaning is avoided; thirdly, no matter the guide belt 5 is in a running state or a stopping state, as long as the rotating motor 14 is started, the rotating threaded rod 15 is driven to rotate, so that the second brush 17 on the transmission belt cleaning plate 16 rotates, the guide belt 5 is continuously cleaned, it needs to be noted that the position of the transmission belt cleaning plate 16 can be adjusted, if the time for the guide belt 5 to stop is too long when the display screen 6 is tested, the lower limit nut 18 can be rotated downwards firstly, then the transmission belt cleaning plate 16 is also adjusted downwards until the second brush 17 is not contacted with the guide belt 5, the limit nuts 18 on the two sides are rotated to be tightly attached to the two sides of the transmission belt cleaning plate 16, the transmission belt cleaning plate 16 is fixed, and the second brush 17 on the transmission belt cleaning plate 16 is prevented from repeatedly rotating and cleaning the same position of the guide belt 5 all the time, and then lead to the problem that the guide belt 5 weares and teares too fast, adjust easy operation, it is nimble to use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an automatic piece device that send of display screen, includes bottom plate (1), its characterized in that: the bottom plate (1) is fixedly provided with a plurality of supporting columns (2), one side, far away from the bottom plate (1), of each supporting column (2) is movably provided with a rotating shaft (3) in a penetrating mode, the rotating shaft (3) is fixedly arranged at the center of a guide wheel (4), the guide wheel (4) is arranged in a guide belt (5), and a display screen (6) is placed on the guide belt (5);
a cross beam (7) is arranged above the guide belt (5), a first bearing seat (8) is embedded in one side, close to the guide belt (5), of the cross beam (7), a rotary rod (9) is movably arranged in the first bearing seat (8), a thread groove (901) is formed in the rotary rod (9), an adjusting threaded rod (10) is arranged in the thread groove (901) in a threaded manner, a display screen cleaning plate (11) is fixedly arranged at one end, far away from the rotary rod (9), of the adjusting threaded rod (10), a first brush (12) is arranged on the display screen cleaning plate (11), and a driven wheel (13) is fixedly arranged on the outer side of the rotary rod (9) in a penetrating manner;
a rotating motor (14) is embedded in the bottom plate (1), a rotating threaded rod (15) is fixedly arranged at the output end of the rotating motor (14), a driving belt cleaning plate (16) is movably arranged on the rotating threaded rod (15) in a penetrating mode, a second brush (17) is arranged on one side, close to the guide belt (5), of the driving belt cleaning plate (16), a driving wheel (19) is fixedly arranged on the rotating threaded rod (15), the driving wheel (19) is arranged in a linkage belt (20), a driving column (21) and a positioning wheel (29) are arranged in the linkage belt (20), and the positioning wheel (29) is arranged on one side, far away from the driving wheel (19), and is used for supporting the linkage belt (20);
a transmission rod (22) is fixedly arranged at the center of the transmission column (21) in a penetrating mode, a transmission wheel (23) is fixedly arranged on one side, close to the driven wheel (13), of the transmission rod (22), a transmission bevel gear (24) is fixedly arranged on the transmission rod (22) in a penetrating mode, a pedal (25) is fixedly arranged at the bottom of the transmission rod (22), a pressing block (26) is arranged below the pedal (25), the pressing block (26) is movably arranged in a groove (27) formed in the bottom plate (1), and a spring (28) is connected between the pressing block (26) and the groove (27);
the guide wheel type motor base plate is characterized in that an upright post (32) is fixedly arranged on the base plate (1), a connecting rod (33) penetrates through the upright post (32) movably, two ends of the connecting rod (33) are arranged at the centers of a first transmission bevel gear (34) and a second transmission bevel gear (35) respectively, the second transmission bevel gear (35) and a third transmission bevel gear (36) are meshed, and the third transmission bevel gear (36) is fixed at one end, far away from the guide wheel (4), of the rotating shaft (3).
2. The automatic film feeding device for the display screen according to claim 1, wherein: and two sides of the driving belt cleaning plate (16) are respectively provided with a limiting nut (18), and the limiting nuts (18) are movably arranged on the rotary threaded rods (15) in a threaded manner.
3. The automatic film feeding device for the display screen according to claim 1, wherein: one end of the positioning wheel (29) close to the bottom plate (1) is fixedly provided with a connecting column (30), the connecting column (30) is movably arranged in a second bearing seat (31), and the second bearing seat (31) is embedded in the bottom plate (1).
4. A test system, characterized by: an automatic film feeding device for a display screen according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010709007.6A CN111707445B (en) | 2020-07-22 | 2020-07-22 | Automatic film feeding device of display screen and testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010709007.6A CN111707445B (en) | 2020-07-22 | 2020-07-22 | Automatic film feeding device of display screen and testing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111707445A true CN111707445A (en) | 2020-09-25 |
| CN111707445B CN111707445B (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010709007.6A Active CN111707445B (en) | 2020-07-22 | 2020-07-22 | Automatic film feeding device of display screen and testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111707445B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112875144A (en) * | 2021-04-30 | 2021-06-01 | 四川大学 | Belt cleaning device of belt conveyor of normal concrete pouring tunnel lining trolley |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112875144A (en) * | 2021-04-30 | 2021-06-01 | 四川大学 | Belt cleaning device of belt conveyor of normal concrete pouring tunnel lining trolley |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111707445B (en) | 2024-04-16 |
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