CN116620825B - Automatic transfer device of liquid crystal display and production line - Google Patents
Automatic transfer device of liquid crystal display and production line Download PDFInfo
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- CN116620825B CN116620825B CN202310855986.XA CN202310855986A CN116620825B CN 116620825 B CN116620825 B CN 116620825B CN 202310855986 A CN202310855986 A CN 202310855986A CN 116620825 B CN116620825 B CN 116620825B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 157
- 238000012546 transfer Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 43
- 230000008569 process Effects 0.000 abstract description 41
- 238000011144 upstream manufacturing Methods 0.000 abstract description 9
- 230000009471 action Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241000252254 Catostomidae Species 0.000 description 1
- 244000023431 Proboscidea parviflora Species 0.000 description 1
- 235000019096 Proboscidea parviflora Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
Classifications
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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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/248—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
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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
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
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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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The utility model discloses an automatic transfer device and a production line of a liquid crystal display screen, and relates to the technical field of liquid crystal display screens, wherein the automatic transfer device comprises a rotating frame rotating around a vertical axis, and the rotating frame is arranged on a fixed base; a horizontal shaft is rotatably arranged on the rotating frame, and a bearing mechanism is fixedly arranged on the horizontal shaft; the bearing mechanism comprises a bearing frame fixedly connected with the horizontal shaft, and an accommodating groove for storing the liquid crystal display screen is formed in the end face of the bearing frame; the receiving mechanism also comprises a pushing component; according to the utility model, the liquid crystal screen on the upstream conveying belt is supported by the supporting frame, the liquid crystal screen is turned over by 180 degrees by the turning supporting frame, and the rotating frame drives the supporting frame to rotate in the turning process so as to turn the liquid crystal screen and aim at the downstream conveying belt; the liquid crystal display is always located in the accommodating groove in the whole process, and even if the overturning speed of the bearing frame and the rotating speed of the rotating frame are high, the liquid crystal display cannot fall off from the accommodating groove.
Description
Technical Field
The utility model relates to the technical field of liquid crystal display screens, in particular to an automatic transfer device of a liquid crystal display screen and a production line.
Background
Liquid crystal displays are a common type of display. The liquid crystal display uses two sheets of polarizing material between which is a liquid crystal solution through which current is passed to rearrange the crystals for imaging purposes. The liquid crystal display screen has the advantages of right angle display, low power consumption, small volume, zero radiation and the like, and is widely applied to portable computers and digital clocks.
When the liquid crystal display is manufactured, the polarizing plate and the backlight module are respectively arranged on two sides of the liquid crystal plate, and the polarizing plate and the backlight module are arranged on two different conveying belts on a production line, so that the liquid crystal plate with the backlight module arranged is required to be transported at the tail end of a first conveying belt, and the liquid crystal plate is transported to the starting point of a second production line; this transfer process was originally done manually, but now the manual work has been essentially replaced by dedicated transfer devices, because of the low efficiency of the manual work and the inability to place the lcd screen in the exact position during transfer. For example, chinese patent publication No. CN207174876U discloses a manipulator for transferring a liquid crystal display, which comprises a base device, a sleeve is hinged on the base device, and a pull rod is sleeved in the sleeve; two connecting rods are fixed at one end of the sleeve, the two connecting rods are respectively positioned at two sides of the pull rod, a clamping mechanism is hinged at one end of the connecting rod, which is far away from the sleeve, and a stop block for pushing the clamping mechanism to rotate is arranged on the pull rod. For example, a strong double-claw sucker for transferring a liquid crystal display is disclosed in chinese patent publication No. CN218579009U, and the sucker comprises an air bag and a main pipe body, wherein the bottom of the air bag is fixedly and through-connected with a central connecting block, the left end and the right end of the central connecting block are fixedly connected with the main pipe body, the front end and the rear end of the central connecting block are fixedly provided with side connecting pipes, the two ends of the two groups of side connecting pipes are inserted and connected with side plugs, and rubber suckers are fixedly arranged below the two ends of the two groups of main pipe bodies.
In the prior art liquid crystal screen transferring device including the patent, the liquid crystal screen is not always grabbed by hard clamping or sucking discs, and in the processing and production process of the liquid crystal screen with larger size, because the liquid crystal screen is heavy, if a hard clamping mode is adopted, a large clamping force is required, and the clamping position of the liquid crystal screen is easy to deform; if a sucking disc mode is adopted, because the liquid crystal display needs to be overturned during transportation, the gravity of the liquid crystal display can cause the liquid crystal display to move on the sucking disc and even fall off from the sucking disc in the overturning process; in addition, because the liquid crystal screen is large in mass and large in inertia, when acceleration and deceleration and reversing are carried out under the state that the liquid crystal screen is grabbed by the gripper, the liquid crystal screen is easy to drop from the gripper due to inertia, so that the moving speed of the gripper can be slowed down to avoid the situation, and the production efficiency can be reduced. Based on the above situation, how to ensure that the liquid crystal screen cannot fall off in the process of fast moving when the liquid crystal screen with large quality is transported becomes a technical problem to be solved urgently by the person skilled in the art.
Disclosure of Invention
The utility model aims to provide an automatic transfer device and a production line for a liquid crystal display screen, so as to solve the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions: an automatic transfer device for a liquid crystal display screen comprises a rotating frame rotating around a vertical axis, wherein the rotating frame is arranged on a fixed base; the rotating frame is rotatably provided with a horizontal shaft, and the automatic transfer device for the liquid crystal display screen further comprises a receiving mechanism.
The bearing mechanism comprises a bearing frame fixedly connected with the horizontal shaft, and an accommodating groove for storing the liquid crystal display screen is formed in the end face of the bearing frame; the receiving mechanism further comprises a pushing component for pushing the liquid crystal display screen in the accommodating groove.
As a preferable technical scheme of the utility model, the upper surface of the base is provided with an annular groove, two support columns which are symmetrically arranged relative to the rotation axis of the rotating frame are vertically and fixedly arranged on the rotating frame, and rolling balls which are in rolling fit with the annular groove are rotatably arranged at the bottom ends of the support columns.
As a preferable technical scheme of the utility model, the pushing component comprises two sliding grooves which are arranged on the surface of the accommodating groove, the two sliding grooves are symmetrically arranged, a pushing block is slidably arranged in each sliding groove, and an elastic piece is connected between the pushing block and the end face of each sliding groove.
As a preferable technical scheme of the utility model, a locking unit corresponding to the position of the pushing block is fixedly arranged in the accommodating groove; one end of the sliding groove, which is close to the opening of the accommodating groove, is a starting point, and one end of the sliding groove, which is close to the inside of the accommodating groove, is a tail end; the locking unit is used for locking the pushing block moving to the tail end of the sliding groove.
As a preferable technical scheme of the utility model, the locking unit comprises a locking block fixedly arranged in the accommodating groove, and the surface of the locking block facing the corresponding pushing block is provided with a locking groove; the pushing block is fixedly connected with a first wedge block through a connecting rod; the surface of the locking groove is slidably provided with a second wedge block matched with the first wedge block.
As a preferable technical scheme of the utility model, a telescopic spring is connected between the second wedge-shaped block and the bearing frame, an extension rod extending to the outside of the bearing frame is fixedly arranged on the second wedge-shaped block, a first magnet block is fixedly arranged at the outer end of the extension rod, and a second magnet block corresponding to the first magnet block in position is fixedly arranged on the rotating frame.
As a preferable technical scheme of the utility model, each pushing block is provided with a transmission chain, and two ends of the transmission chain are respectively and fixedly connected to two opposite surfaces of the pushing block; two chain wheels matched with the transmission chain are arranged in the sliding groove, and a chain groove allowing the transmission chain to pass through is formed in the bearing frame; the receiving mechanism further comprises an adjusting unit for adjusting the rotational speed of the sprocket.
As a preferable technical scheme of the utility model, the adjusting unit comprises a rotating shaft which is fixedly arranged on the chain wheel and is coaxial with the chain wheel, the rotating shaft extends to the outside of the bearing frame, a rotating disc which is coaxial with the rotating shaft is fixedly arranged on the rotating shaft, and a plurality of adjusting blocks which are in sliding fit with the rotating disc are uniformly arranged on the surface of the rotating disc along the circumferential direction of the rotating disc; the adjusting unit also comprises a reset piece for controlling the reset of the adjusting block; the outer surface of the bearing frame is fixedly provided with a circular ring coaxial with the turntable at the position corresponding to each turntable, and a plurality of clamping grooves matched with the adjusting blocks are uniformly formed in the inner ring surface of the circular ring along the circumferential direction of the inner ring surface.
As a preferable technical scheme of the utility model, the regulating blocks are in sliding fit with the turntable along the radial direction of the turntable, the reset piece comprises a first connecting rod fixedly connected to each regulating block, and the end part of the first connecting rod, which faces the center of the turntable, is provided with a second connecting rod in a rotating way; and lifting tables in running fit with the second connecting rods are mounted at the top ends of the second connecting rods corresponding to the same rotary table, and return springs are connected between the lifting tables and the corresponding rotary table.
The utility model also provides an automatic production line of the liquid crystal display, which comprises the automatic transfer device of the liquid crystal display.
In the technical scheme, according to the automatic transfer device and the production line for the liquid crystal display, the liquid crystal display on the upstream conveying belt is received through the receiving frame, the liquid crystal display is turned 180 degrees through the turning receiving frame, and the rotating frame drives the receiving frame to rotate in the turning process to change the direction of the liquid crystal display so as to be aligned with the downstream conveying belt; the liquid crystal display is always located in the accommodating groove in the whole process, and even if the overturning speed of the bearing frame and the rotating speed of the rotating frame are high, the liquid crystal display cannot fall off from the accommodating groove.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic perspective view of an automated transfer device for a liquid crystal display in embodiment 1;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is a front view showing the internal structure of the receiving rack in embodiment 1;
FIG. 4 is an enlarged schematic view at B in FIG. 3;
FIG. 5 is a schematic view showing the structure of a transmission chain and a sprocket in example 1;
FIG. 6 is a side view showing the internal structure of the receiving rack in embodiment 1;
FIG. 7 is a side view showing the internal structure of the receiving rack in embodiment 2;
fig. 8 is a schematic perspective view of an automated transferring apparatus for a liquid crystal display in embodiment 2;
FIG. 9 is an enlarged schematic view of FIG. 8 at C;
FIG. 10 is a side view of an automated LCD transport device according to example 2;
FIG. 11 is an enlarged schematic view of FIG. 10 at D;
fig. 12 is a schematic view of the structure of the receiving rack in the receiving state in embodiment 2;
fig. 13 is a schematic view showing a structure of a receiving rack in a feeding state in embodiment 2.
Reference numerals illustrate:
1. a rotating frame; 2. a base; 201. an annular groove; 3. a horizontal axis; 4. a receiving mechanism; 401. a bearing frame; 402. a receiving groove; 403. a chute; 404. a pushing block; 405. an elastic member; 406. a locking block; 407. a locking groove; 408. a connecting rod; 409. a first wedge block; 410. a second wedge block; 411. a telescopic spring; 412. an extension rod; 413. a first magnet block; 414. a second magnet block; 415. a drive chain; 416. a sprocket; 417. a rotating shaft; 418. a turntable; 419. an adjusting block; 420. a circular ring; 421. a clamping groove; 422. a first link; 423. a second link; 424. a lifting table; 425. a return spring; 426. a conveying wheel; 427. a support rod; 428. a support wheel; 429. a connecting plate; 430. a first adjustment plate; 431. a fixed block; 432. a second adjusting plate; 433. a first guide block; 434. a first guide groove; 435. a second guide block; 5. a support column; 6. a sector gear; 7. a driving motor; 8. a drive gear; 9. an arc-shaped plate; 901. and a second guide groove.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
Example 1
The embodiment provides an automatic transfer device for a liquid crystal display screen, which is used for transferring the liquid crystal display screen between two conveyor belts, and synchronously overturning the liquid crystal display screen in the transfer process; the two conveying belts are in an upstream-downstream relationship, the upstream conveying belt is used for installing a backlight module, the downstream conveying belt is used for installing a polarizing plate, and the backlight module and the polarizing plate are respectively installed on two sides of the liquid crystal screen; specifically, the automatic transfer device of the liquid crystal display screen is used for taking the liquid crystal display screen at the tail end of the upstream conveying belt and moving the liquid crystal display screen to the starting end of the downstream conveying belt; the upper surfaces of two adjacent conveyor belts are flush, and the range of angles between two adjacent conveyor belts includes, but is not limited to, 90-180 °; two adjacent conveyer belts all carry the LCD screen with invariable speed.
As shown in fig. 1, the automated transfer device for liquid crystal display comprises a rotating frame 1 rotating around a vertical axis, wherein the rotating frame 1 is mounted on a fixed base 2; the rotating frame 1 is rotatably provided with a horizontal shaft 3, and the automatic transfer device of the liquid crystal display screen also comprises a receiving mechanism 4; the upper surface of the base 2 is provided with an annular groove 201, two support columns 5 which are symmetrically arranged relative to the rotation axis of the rotating frame 1 are vertically and fixedly arranged on the rotating frame 1, and rolling balls which are in rolling fit with the annular groove 201 are rotatably arranged at the bottom ends of the support columns 5; the support column 5 plays a role in supporting the rotating frame 1, so that the rotating frame 1, the horizontal shaft 3 and the bearing mechanism 4 are prevented from inclining under the action of gravity; the two ends of the horizontal shaft 3 are fixedly provided with sector gears 6, the rotating frame 1 is fixedly provided with a driving motor 7 corresponding to the positions of the sector gears 6, the output shaft of the driving motor 7 is fixedly provided with a driving gear 8 for driving the sector gears 6, and the driving gear 8 is meshed with the sector gears 6.
The driving motor 7 drives the driving gear 8 to rotate reciprocally, the angle of each unidirectional rotation is 180 degrees, the driving gear 8 drives the sector gear 6 meshed with the driving gear 8 to swing reciprocally in the process of reciprocating rotation, and the angle of each swinging of the sector gear 6 is 180 degrees; because the sector gear 6 is fixedly connected with the horizontal shaft 3, the horizontal shaft 3 can synchronously and reciprocally rotate along with the sector gear 6 in the reciprocating swing process of the sector gear 6; in the reciprocating rotation process of the horizontal shaft 3, the rotating frame 1 can synchronously and reciprocally rotate; the driving means of the turret 1 include, but are not limited to, motor driving, i.e. motor shaft directly connected to the bottom end of the turret 1, or driving by means of a set of bevel gears mounted on the turret 1 and motor shaft, respectively, which is the prior art, but is not described herein.
As shown in fig. 3, the receiving mechanism 4 includes a receiving frame 401 fixedly connected with the horizontal shaft 3, and an accommodating groove 402 for storing the liquid crystal display is formed on an end surface of the receiving frame 401; the distance between the two side surfaces of the accommodating groove 402 is constant, and the distance between the top surface and the bottom surface of the accommodating groove 402 is constant; the receiving mechanism 4 further includes a pushing component for pushing the lcd screen in the receiving groove 402.
Specifically, the receiving rack 401 has two static states, namely a receiving state and a feeding state, and in the two states, the receiving rack 401 is in a horizontal state; in the receiving state, the notch of the accommodating groove 402 is opposite to the tail end of the upstream conveying belt, the sector gear 6 and the rotating frame 1 are in the state shown in fig. 1, and the driving gear 8, the sector gear 6, the rotating frame 1 and the horizontal shaft 3 are in a static state; a single liquid crystal screen on the upstream conveying belt enters the accommodating groove 402 in a horizontal state, and after more than half of the liquid crystal screen enters the accommodating groove 402, the driving gear 8, the sector gear 6, the rotating frame 1 and the horizontal shaft 3 start to move, and the receiving frame 401 starts to turn over; the overturning angle of the bearing frame 401 is 180 degrees, in the process, a part of the liquid crystal screen is outside the containing groove 402 at first, a part of the liquid crystal screen is in the containing groove 402, then the liquid crystal screen gradually slides towards the inner side of the containing groove 402 under the action of gravity, and finally the liquid crystal screen completely enters the containing groove 402 before the bearing frame 401 is overturned to a vertical state; after the bearing frame 401 is overturned by more than 90 degrees, the liquid crystal screen is always completely positioned in the accommodating groove 402; in the overturning process of the bearing frame 401, the rotating frame 1 synchronously drives the horizontal shaft 3, the bearing mechanism 4 and the liquid crystal display to rotate; when the receiving frame 401 is turned over to 180 degrees, the receiving frame 401 enters a feeding state, the driving gear 8, the sector gear 6, the rotating frame 1 and the horizontal shaft 3 enter a static state, the rotating frame 1 drives the receiving frame 401 to rotate to a position, right towards the initial end of the downstream conveying belt, of the containing groove 402 through the horizontal shaft 3, and then the liquid crystal screen in the containing groove 402 is pushed out by the pushing component; the pushing component gives a certain initial speed to the liquid crystal screen, the liquid crystal screen can move to the initial end of the downstream conveying belt in a horizontal state by virtue of self inertia, and particularly, the liquid crystal screen can automatically drive the liquid crystal screen to move until the liquid crystal screen completely moves to the downstream conveying belt as long as more than half of the liquid crystal screen enters the downstream conveying belt; after the liquid crystal screen is completely moved onto the downstream conveyor belt, the driving gear 8, the sector gear 6, the rotating frame 1 and the horizontal shaft 3 start to reversely rotate, and the receiving frame 401 starts to reversely overturn until the receiving frame 401 enters the receiving state again.
The process is repeated continuously, so that the liquid crystal screen on the upstream conveying belt can be transferred to the downstream conveying belt continuously, and the liquid crystal screen is turned synchronously in the transfer process; in the transferring process, more than half of the liquid crystal screen is always positioned in the accommodating groove 402, and the notch of the accommodating groove 402 does not face downwards, so that the liquid crystal screen can not fall off from the accommodating frame 401 all the time even if the overturning speed of the accommodating frame 401 and the rotating speed of the rotating frame 1 are very fast.
In the receiving state, the receiving rack 401 is parallel to the side wall of the receiving groove 402 in the conveying direction of the upstream conveying belt; in the feeding state, the carrying rack 401 carries the downstream conveyor belt in a direction parallel to the side wall of the accommodating groove 402.
As shown in fig. 3, the pushing assembly includes two sliding grooves 403 respectively formed on two sidewalls of the accommodating groove 402, the two sliding grooves 403 are symmetrically arranged, a pushing block 404 is slidably mounted in each sliding groove 403, and an elastic member 405 is connected between the pushing block 404 and an end surface of the sliding groove 403; the elastic member 405 includes, but is not limited to, a spring and an elastic cord capable of being greatly deformed, as long as the elastic member 405 can be stretched by an external force and restored when the external force is released; it should be noted that, the elastic member 405 is detachably connected to the pushing block 404 and the chute 403, so as to be convenient for replacement after long-term use.
When the receiving frame 401 is in a receiving state, the liquid crystal screen on the upstream conveying belt enters the accommodating groove 402 and gradually approaches the pushing block 404, when the receiving frame 401 starts to turn over, the liquid crystal screen is just attached to the pushing block 404, and along with the increase of the turning angle of the receiving frame 401, the pressure applied by the liquid crystal screen to the pushing block 404 is gradually increased until the pushing block 404 overcomes the elasticity of the elastic piece 405 and slides to the inner side of the accommodating groove 402 along the sliding groove 403, and the liquid crystal screen also synchronously slides to the inner side of the accommodating groove 402; before the bearing frame 401 is turned over to 90 degrees, the pushing block 404 moves to the bottom end of the travel of the pushing block in the sliding groove 403, the liquid crystal screen also completely enters the containing groove 402, and the elastic piece 405 enters the state of maximum energy storage; in the interval of 90-180 degrees of overturning of the bearing frame 401, the pressure applied by the liquid crystal screen to the pushing block 404 is gradually reduced, the pushing block 404 gradually slides to the outer side of the containing groove 402 along the sliding groove 403 under the resilience force of the elastic piece 405, and synchronously pushes the liquid crystal screen attached to the pushing block to move to the outer side of the containing groove 402; when the receiving frame 401 is turned to 180 degrees, namely the receiving frame 401 enters a feeding state, the pressure exerted by the liquid crystal screen on the pushing block 404 is zero, the pushing block 404 is completely reset along the sliding groove 403 under the action of the resilience force of the elastic piece 405, and thrust is exerted on the liquid crystal screen in the resetting process of the pushing block 404, so that a certain initial speed exists on the liquid crystal screen, and the liquid crystal screen moves to the starting end of the downstream conveying belt under the action of inertia.
In the actual production process, because the weight of a plurality of liquid crystal screens is large, and the elastic piece 405 slowly releases energy in the interval of 90-180 degrees of turnover of the bearing frame 401, the thrust exerted by the pushing block 404 on the liquid crystal screens is slowly changed, and the more the pushing block 404 is positioned, the smaller the thrust exerted by the pushing block 404 on the liquid crystal screens is, the smaller the initial speed of the liquid crystal screens moving to the outer side of the containing groove 402 is, and the liquid crystal screens can not necessarily move to the downstream conveying belt under the action of self inertia; ideally, the position of the pushing block 404 in the chute 403 is unchanged all the time in the interval of 90-180 degrees of overturning of the bearing frame 401, i.e. the elastic piece 405 is always in the maximum energy storage state; when the receiving frame 401 is turned over by 180 degrees, the elastic element 405 starts to release energy, so that the pushing block 404 does not need to overcome the gravity of the liquid crystal screen in the energy release process of the elastic element 405, so that the liquid crystal screen can be pushed to move out of the accommodating groove 402 at a higher speed, and the liquid crystal screen can be ensured to move onto the downstream conveying belt under the inertia effect.
Based on the above, as shown in fig. 1, 3 and 4, in this embodiment, a locking unit corresponding to the position of the pushing block 404 is fixedly installed in the accommodating groove 402; the end of the sliding groove 403 close to the opening of the accommodating groove 402 is a starting point, and the end close to the interior of the accommodating groove 402 is a terminal end; the locking unit is used for locking the pushing block 404 moving to the tail end of the chute 403; the locking unit comprises a locking block 406 fixedly arranged in the accommodating groove 402, and a locking groove 407 is formed in the surface of the locking block 406 facing the corresponding pushing block 404; the pushing block 404 is fixedly connected with a first wedge block 409 through a connecting rod 408; the surface of the locking groove 407 is slidably provided with a second wedge block 410 matched with the first wedge block 409, a telescopic spring 411 is fixedly connected between the second wedge block 410 and the bearing frame 401, an extension rod 412 extending to the outside of the bearing frame 401 is fixedly arranged on the second wedge block 410, a first magnet block 413 is fixedly arranged at the outer end of the extension rod 412, and a second magnet block 414 corresponding to the position of the first magnet block 413 is fixedly arranged on the rotating frame 1; the first magnet 413 and the second magnet 414 generate attraction force at the corresponding positions.
Specifically, in the interval of 0-90 ° of overturning of the bearing frame 401, the liquid crystal screen pushes the pushing block 404 to move downwards along the chute 403, and the connecting rod 408 and the first wedge block 409 synchronously move downwards along with the pushing block 404; before the bearing frame 401 is turned over by 90 degrees, the inclined surface of the first wedge block 409 is attached to the inclined surface of the second wedge block 410, the first wedge block 409 pushes the second wedge block 410 to slide, the second wedge block 410 compresses the expansion spring 411 to store energy, and the extension rod 412 and the first magnet block 413 translate synchronously; after the inclined surface of the first wedge block 409 is separated from the inclined surface of the second wedge block 410, the telescopic spring 411 releases energy and pushes the second wedge block 410 to reversely slide and reset, the extension rod 412 and the first magnet block 413 synchronously reversely translate and reset, the lower surface of the second wedge block 410 is attached to the upper surface of the first wedge block 409, and the second wedge block 410 has a locking effect on the first wedge block 409, namely, the pushing block 404, the connecting rod 408 and the first wedge block 409 cannot reset along the direction of the chute 403; then, before the carrier 401 is turned 180 °, the elastic member 405 is always in the maximum energy storage state; when the bearing frame 401 is turned 180 degrees, the extension rod 412 and the first magnet block 413 are turned 180 degrees along with the bearing frame 401, and the first magnet block 413 is just turned to a position corresponding to the second magnet block 414, so that suction force is generated between the extension rod and the first magnet block; the suction force overcomes the action of the telescopic spring 411 to drive the second wedge-shaped block 410 to translate, after the lower surface of the second wedge-shaped block 410 is separated from the upper surface of the first wedge-shaped block 409, the second wedge-shaped block 410 does not lock the first wedge-shaped block 409 any more, the elastic piece 405 can release energy and drive the pushing block 404, the connecting rod 408 and the first wedge-shaped block 409 to reset along the direction of the sliding groove 403, and the liquid crystal screen is pushed to move out of the accommodating groove 402 in the resetting process of the pushing block 404; because the pushing block 404 does not need to overcome the gravity of the liquid crystal screen in this state, the pushing block 404 can push the liquid crystal screen to move out of the accommodating groove 402 at a faster speed, so that the liquid crystal screen can be ensured to move onto the downstream conveyor belt under the inertia effect.
In the actual production process, in order to improve the transfer efficiency, the overturning speed of the receiving frame 401 is usually set to be faster, so that the liquid crystal display screen moves into the accommodating groove 402 at a faster speed in the process of overturning the receiving frame 401 to 90 degrees, the elastic piece 405 is rapidly stretched, and after the liquid crystal display screen moves into the accommodating groove 402 completely, the elastic piece 405 still continues to be stretched under the inertia effect and continues to move into the accommodating groove 402; thus, the elastic member 405 is repeatedly and rapidly stretched for a long time, so that the loss of the elastic member 405 is accelerated, the replacement frequency of the elastic member 405 is increased, and the production cost is increased; on the other hand, the first wedge 409 may also collide with the locking block 406, resulting in damage; preferably, the liquid crystal panel can be completely moved into the receiving groove 402 at a relatively slow speed during the process of turning the receiving frame 401 to 90 °.
Based on the above, as shown in fig. 2, 3 and 5, in this embodiment, each pushing block 404 is mounted with a transmission chain 415, and two ends of the transmission chain 415 are respectively and fixedly connected to two opposite surfaces of the pushing block 404; two chain wheels 416 matched with the transmission chain 415 are arranged in the sliding groove 403, and a chain groove allowing the transmission chain 415 to pass through is formed in the bearing frame 401; the receiving mechanism 4 further comprises an adjusting unit for adjusting the rotation speed of the sprocket 416; the adjusting unit comprises a rotating shaft 417 fixedly mounted on the sprocket 416 and coaxial with the sprocket 416, the rotating shaft 417 extends to the outside of the bearing frame 401, a rotating disc 418 coaxial with the rotating shaft 417 is fixedly mounted on the rotating shaft 417, and a plurality of adjusting blocks 419 in sliding fit with the rotating disc 418 are uniformly mounted on the surface of the rotating disc 418 along the circumferential direction of the rotating disc; the adjusting unit further comprises a reset piece for controlling the reset of the adjusting block 419; the outer surface of the bearing frame 401 is fixedly provided with a circular ring 420 which is coaxial with the turntable 418 at a position corresponding to each turntable 418, and a plurality of clamping grooves 421 matched with the adjusting blocks 419 are uniformly formed in the inner annular surface of the circular ring 420 along the circumferential direction of the circular ring 420; the surface of the adjusting block 419 facing the circular ring 420 is an arc-shaped surface, the adjusting block 419 is in sliding fit with the turntable 418 along the radial direction of the turntable 418, the reset piece comprises a first connecting rod 422 fixedly connected to each adjusting block 419, and the end part of the first connecting rod 422 facing the center of the turntable 418 is provided with a second connecting rod 423 in a rotating way; the top ends of the second connecting rods 423 corresponding to the same rotary table 418 are provided with lifting tables 424 in running fit with the same, and return springs 425 are connected between the lifting tables 424 and the corresponding rotary tables 418.
Specifically, in the process that the receiving frame 401 is turned over to 90 degrees, the liquid crystal screen pushes the pushing block 404 to move downwards along the chute 403, the pushing block 404 synchronously drives the transmission chain 415 to move, and in the process that the transmission chain 415 moves, the sprocket 416 drives the rotating shaft 417 to rotate; the faster the liquid crystal screen drops, the faster the push block 404 moves, the faster the drive chain 415 moves, and the faster the sprocket 416 and shaft 417 rotate; it should be noted that, the sprocket 416 is uniformly provided with a plurality of notches along its circumference, which are matched with the transmission chain 415, when the transmission chain 415 is stationary, the sprocket 416 cannot rotate, and when the sprocket 416 is stationary, the notches on the sprocket 416 can play a clamping role on the transmission chain 415, and the transmission chain 415 cannot move, which is referred to as a transmission system of a bicycle in the prior art, which is not described herein.
The rotation of the rotation shaft 417 drives the rotation of the turntable 418 fixedly connected with the rotation shaft 417, and the rotation of the adjustment block 419 is driven in the process of the turntable 418; when the rotation speed of the rotation shaft 417 reaches a certain degree, the adjusting block 419 drives the first connecting rod 422 to move outwards along the radial direction of the turntable 418 under the action of centrifugal force, the first connecting rod 422 pulls the second connecting rod 423 to rotate, the lifting platform 424 moves towards the turntable 418 under the action of the pulling force of the second connecting rod 423, and the return spring 425 is compressed and stores energy; until the adjusting block 419 is jointed with the inner ring surface of the circular ring 420 and is clamped into the clamping groove 421, the rotating disc 418 and the adjusting block 419 synchronously stop rotating, the rotating shaft 417 and the chain wheel 416 synchronously stop rotating, the transmission chain 415 stops moving, and the pushing block 404 and the liquid crystal screen stop descending; since the adjusting block 419 is no longer subjected to the centrifugal force, the first connecting rod 422 does not apply a pulling force to the second connecting rod 423 any more, the return spring 425 can quickly release energy and drive the first connecting rod 422 and the adjusting block 419 to return through the second connecting rod 423, the adjusting block 419 is separated from the clamping groove 421, the turntable 418 and the adjusting block 419 can continue to rotate, the transmission chain 415 can continue to move, and the pushing block 404 and the liquid crystal screen can continue to descend; the above process is repeated continuously, so that the liquid crystal screen and the pushing block 404 are in the high-frequency descending-static-descending process in the process of turning the receiving frame 401 to 90 degrees, the liquid crystal screen and the pushing block 404 can always keep relatively low-speed movement, the rapid stretching of the elastic piece 405 is avoided, and the occurrence of the condition of collision between the first wedge-shaped block 409 and the locking block 406 is also avoided.
It should be noted that, since the second links 423 corresponding to the same ring 420 are connected to the same lifting platform 424, the second links 423 corresponding to the same ring 420 can only move synchronously, the first links 422 corresponding to the same ring 420 also move synchronously, and the adjusting blocks 419 corresponding to the same ring 420 also move synchronously, which ensures that the adjusting blocks 419 corresponding to the same ring 420 contact the ring 420 at the same time and can be synchronously clamped into the clamping groove 421, thereby avoiding damage caused by larger acting force when the individual adjusting blocks 419 first enter the clamping groove 421.
In addition, the inventor finds that after the receiving frame 401 turns 180 ° and that is, when the receiving frame 401 enters a feeding state, the elastic member 405 slides along the chute 403 to reset in a high-frequency moving-stationary-moving state during the energy release process, and the elastic member 405 slowly releases energy; in this way, the pushing block 404 and the horizontal lcd are in a continuous separation-attachment-separation state (because the lcd will continue to move towards the outer side of the receiving slot 402 due to inertia when the pushing block 404 is stationary under the action of the driving chain 415, the lcd will not be stationary, and the pushing block 404 will catch up with the lcd and attach to the lcd when moving continuously from stationary, and continue to push the lcd), the pushing block 404 can push the lcd to move horizontally out of the receiving slot 402 at a relatively stable speed, compared with the elastic element 405, the pushing block 404 can fully release energy directly, so that the pushing block 404 can apply enough pushing force to the lcd to make it move to the downstream conveyor belt with enough initial speed and inertia, and can ensure that the speed of each lcd moving out of the receiving slot 402 is relatively stable; therefore, the distance between two adjacent liquid crystal screens on the downstream conveying belt is relatively stable, the position of the liquid crystal screen on the downstream conveying belt is relatively accurate, and the liquid crystal screen is conveniently positioned by the positioning device of the downstream conveying belt.
As shown in fig. 3 and 6, in this embodiment, a plurality of conveying wheels 426 are rotatably installed on the side wall of the accommodating groove 402 at two sides of the sliding groove 403, and are uniformly arranged along the sliding direction of the liquid crystal screen; after the LCD screen gets into holding tank 402, the LCD screen both sides just in time laminate with transfer pulley 426 mutually, at the in-process that the LCD screen got into holding tank 402, transfer pulley 426 can play limiting displacement to the LCD screen on the one hand, prevents that the LCD screen from rocking, has reduced the frictional force that the LCD screen got into holding tank 402 in-process received on the other hand, has guaranteed that the LCD screen can get into holding tank 402 completely smoothly.
The embodiment also provides an automatic production line of the liquid crystal display, which comprises the automatic transfer device of the liquid crystal display.
Example 2
In order to facilitate the liquid crystal screen to enter and exit the accommodating groove 402, the width of the notch of the accommodating groove 402 is generally larger than the thickness of the liquid crystal screen, in order to avoid the liquid crystal screen shaking in the accommodating groove 402 and the impact between the accommodating frame 401 in the overturning process of the accommodating frame 401, rollers are arranged on the top surface and the bottom surface of the accommodating groove 402, and the rollers are attached to the upper surface and the lower surface of the liquid crystal screen to play a limiting role; however, in the actual production process, although the friction force between the rollers and the lcd screen is small, the contact between the rollers and the lcd screen increases the difficulty of moving the lcd screen out of the accommodating groove 402, so that the lcd screen cannot be completely moved out of the accommodating groove 402 under the inertia effect; preferably, only the lower roller contacts the liquid crystal screen in the process of entering and exiting the accommodating groove 402, and the upper roller does not contact the liquid crystal screen; in the overturning process of the liquid crystal screen, rollers on two sides of the liquid crystal screen are in contact with the liquid crystal screen, and the limiting effect on the liquid crystal screen is achieved.
Based on the above situation, as shown in fig. 7, 8, 9 and 11, in the above embodiment, the width of the notch of the accommodating groove 402 is larger than the thickness of the liquid crystal screen to be transported, supporting units are respectively arranged on the top surface and the bottom surface of the accommodating groove 402, each supporting unit comprises three groups of supporting rods 427 which are uniformly and slidably arranged on the supporting frame 401, the number of each group of supporting rods 427 is two, each group of supporting rods 427 is rotatably provided with a supporting wheel 428, the surface of the accommodating groove 402 is provided with a wheel groove matched with the supporting wheel 428, the supporting wheel 428 can enter and exit the wheel groove, and the axis of the supporting wheel 428 is mutually perpendicular to the direction of the liquid crystal screen entering the accommodating groove 402; the three groups of support rods 427 are fixedly connected together by connecting plates 429; the two sides of the connecting plate 429 extend outwards to form an L shape and are in sliding fit with the outer side wall of the bearing frame 401; the L-shaped structures on two sides of the connecting plate 429 are fixedly provided with first adjusting plates 430, the two outer side walls of the bearing frame 401 are respectively provided with a fixed block 431, the fixed blocks 431 are slidably provided with second adjusting plates 432, the first adjusting plates 430 are fixedly provided with first guide blocks 433, and the first adjusting plates 430 are provided with two first guide grooves 434 which are respectively matched with the two first guide blocks 433; wherein, the first guide groove 434 matched with the upper first guide block 433 is respectively a horizontal section and an inclined section from left to right; the first guide groove 434 engaged with the lower first guide block 433 is respectively an inclined section and a horizontal section from left to right.
Specifically, in the states of fig. 8 and 12, the lower supporting wheel 428 is in a state of moving out of the wheel groove, and the lower supporting wheel 428 plays a supporting role on the liquid crystal screen entering the accommodating groove 402, the upper supporting wheel 428 is in a state of being completely located in the wheel groove, and the upper supporting wheel 428 is not in contact with the liquid crystal screen; in the process of clockwise turning the receiving frame 401 from the state of fig. 12 to the state of fig. 7, the supporting wheels 428 which are originally on the upper side gradually move out of the wheel groove, in the state of fig. 7, the supporting wheels 428 on the two sides of the liquid crystal screen are in the state of moving out of the wheel groove, the supporting wheels 428 on the two sides of the liquid crystal screen are attached to the liquid crystal screen, and play a role in supporting and limiting the liquid crystal screen, so that the liquid crystal screen is prevented from being impacted with the surface of the accommodating groove 402 in the turning process; in the process of clockwise turning the receiving frame 401 from the state of fig. 7 to the state of fig. 13, the left supporting wheel 428 in the state of fig. 7 moves into the wheel groove, and the right supporting wheel 428 in the state of fig. 7 still keeps moving out of the wheel groove; in the state of fig. 13, the original left supporting wheel 428 (i.e., the supporting wheel 428 above in fig. 13) is completely located in the wheel groove, and the original right supporting wheel 428 (i.e., the supporting wheel 428 below in fig. 13) is still located outside the grooved wheel and supports the lcd.
Specifically, in the states of fig. 10 and 11, the first guide blocks 433 are located at the right ends of the first guide grooves 434 where the first guide blocks are located, so long as the second adjusting plate 432 is continuously pulled to the right, the second adjusting plate 432 drives the upper connecting plate 429, the support rods 427 and the support wheels 428 to move first and then to rest through the upper first guide blocks 433, that is, the upper support wheels 428 in the states of fig. 10 and 11 move first out of the wheel grooves and then keep stationary relative to the wheel grooves; the second adjusting plate 432 drives the lower connecting plate 429, the supporting rod 427 and the supporting wheel 428 to be stationary and then move, i.e. the lower supporting wheel 428 is stationary relative to the wheel groove in the state of fig. 10 and 11 and then enters the wheel groove; then, as long as the second adjusting plate 432 is continuously pulled in the clockwise overturning process of the receiving frame 401, the second adjusting plate 432 is pulled towards the axis of the horizontal shaft 3, so that the two supporting units on the top surface and the bottom surface of the receiving groove 402 can respectively support the liquid crystal display in the feeding and receiving states of the receiving frame 401, and the liquid crystal display is limited in the overturning process of the receiving frame 401; in the reverse turning process of the receiving frame 401, the movement state of the two supporting units is opposite to the forward turning process.
It should be noted that, before the first guide block 433 moves to the middle position of the first guide groove 434, that is, before the receiving frame 401 is turned to 90 °, the supporting wheels 428 on two sides of the lcd are already attached to the lcd; in summary, in the embodiment, in the horizontal state of the supporting frame 401, that is, in the process of the liquid crystal screen entering and exiting the accommodating groove 402, only the lower supporting wheel 428 is located outside the wheel groove, and plays a supporting role on the liquid crystal screen from below, and the upper supporting wheel 428 is not in contact with the liquid crystal screen, so that the liquid crystal screen can enter and exit the accommodating groove 402 smoothly; in the overturning process of the bearing frame 401, the supporting wheels 428 on two sides of the liquid crystal display are attached to the liquid crystal display, so that the liquid crystal display cannot collide with the surface of the containing groove 402.
As shown in fig. 9 and 10, a second guide block 435 is fixedly mounted on the surface of the second adjusting plate 432 located outside the fixed block 431, an arc plate 9 is fixedly mounted on the rotating frame 1 corresponding to each second guide block 435, and a second guide groove 901 matched with the second guide block 435 is formed in the arc plate 9; the second guide groove 901 is gradually smaller in distance from the axis of the horizontal shaft 3 in the clockwise direction.
In the state of fig. 10, during the clockwise turning process of the receiving frame 401, the second guide block 435 also slides along the second guide groove 901 in a clockwise direction, and as the distance between the second guide groove 901 and the axis of the horizontal shaft 3 becomes smaller gradually, the second guide block 435 drives the second adjusting plate 432 to move gradually towards the axis of the horizontal shaft 3, so as to realize the state change of the two supporting units, thereby realizing the support and the limit of the liquid crystal display.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (5)
1. An automated transfer device for a liquid crystal display screen, comprising a rotating frame (1) rotating around a vertical axis, characterized in that the rotating frame (1) is mounted on a fixed base (2); the rotating frame (1) is rotatably provided with a horizontal shaft (3), and the automatic transfer device of the liquid crystal display screen further comprises a receiving mechanism (4);
the bearing mechanism (4) comprises a bearing frame (401) fixedly connected with the horizontal shaft (3), and a containing groove (402) for storing the liquid crystal display screen is formed in the end face of the bearing frame (401); the receiving mechanism (4) further comprises a pushing component for pushing the liquid crystal display screen in the accommodating groove (402);
an annular groove (201) is formed in the upper surface of the base (2), two support columns (5) which are symmetrically arranged relative to the rotation axis of the rotating frame (1) are vertically and fixedly arranged on the rotating frame (1), and rolling balls which are in rolling fit with the annular groove (201) are rotatably arranged at the bottom ends of the support columns (5);
the pushing assembly comprises two sliding grooves (403) formed in the surface of the accommodating groove (402), the two sliding grooves (403) are symmetrically arranged, a pushing block (404) is slidably arranged in each sliding groove (403), and an elastic piece (405) is connected between the pushing block (404) and the end face of the sliding groove (403);
a locking unit corresponding to the position of the pushing block (404) is fixedly arranged in the accommodating groove (402); the locking unit is used for locking the pushing block (404) which moves to the tail end of the chute (403);
the locking unit comprises a locking block (406) fixedly arranged in the accommodating groove (402), and a locking groove (407) is formed in the surface of the locking block (406) facing the corresponding pushing block (404); the pushing block (404) is fixedly connected with a first wedge block (409) through a connecting rod (408); the surface of the locking groove (407) is slidably provided with a second wedge block (410) matched with the first wedge block (409);
an extension spring (411) is connected between the second wedge block (410) and the bearing frame (401), an extension rod (412) extending to the outer part of the bearing frame (401) is fixedly installed on the second wedge block (410), a first magnet block (413) is fixedly installed at the outer end of the extension rod (412), and a second magnet block (414) corresponding to the first magnet block (413) is fixedly installed on the rotating frame (1).
2. The automated transfer device of liquid crystal display (lcd) of claim 1, wherein each pushing block (404) is provided with a transmission chain (415), and two ends of the transmission chain (415) are respectively and fixedly connected to two opposite surfaces of the pushing block (404); two chain wheels (416) matched with the transmission chain (415) are arranged in the sliding groove (403), and a chain groove allowing the transmission chain (415) to pass through is formed in the bearing frame (401); the receiving means (4) further comprises an adjusting unit for adjusting the rotational speed of the sprocket (416).
3. An automated transfer device for a liquid crystal display according to claim 2, wherein the adjusting unit comprises a rotating shaft (417) fixedly mounted on the sprocket (416) and coaxial with the sprocket (416), the rotating shaft (417) extends to the outside of the receiving frame (401), a rotating disc (418) coaxial with the rotating shaft (417) is fixedly mounted on the rotating shaft (417), and a plurality of adjusting blocks (419) in sliding fit with the rotating disc (418) are uniformly mounted on the surface of the rotating disc (418) along the circumferential direction of the rotating disc; the adjusting unit also comprises a reset piece for controlling the reset of the adjusting block (419); the outer surface of the bearing frame (401) is fixedly provided with a circular ring (420) coaxial with the rotary discs (418) corresponding to the positions of the rotary discs (418), and a plurality of clamping grooves (421) matched with the adjusting blocks (419) are uniformly formed in the circumferential direction of the inner annular surface of the circular ring (420).
4. An automated transfer device for a liquid crystal display according to claim 3, wherein the adjusting blocks (419) are slidably matched with the turntable (418) along the radial direction of the turntable (418), the reset member comprises a first connecting rod (422) fixedly connected to each adjusting block (419), and the end parts of the first connecting rod (422) facing the center of the turntable (418) are respectively provided with a second connecting rod (423) in a rotating way; lifting tables (424) in running fit with the same turntable (418) are mounted on the top ends of the second connecting rods (423) corresponding to the same turntable (418), and return springs (425) are connected between the lifting tables (424) and the corresponding turntable (418).
5. An automated production line for liquid crystal display panels, comprising the automated transfer device for liquid crystal display panels according to any one of claims 1 to 4.
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