CN210655969U - Lifting device is used in liquid crystal display production - Google Patents

Abstract

The utility model discloses a lifting device is used in liquid crystal display production belongs to jacking equipment technical field, including supporting component, bearing platform and drive assembly, drive assembly installs on supporting component, bearing platform is located supporting component and bearing platform installs on drive assembly, supporting component includes first support piece and second support piece, drive assembly includes driving piece and linkage, the driving piece is installed on first support piece and driving piece and linkage transmission cooperation. The utility model discloses a two second chains and two third chain simultaneous workings stimulate two first connecting plates and two vertical removals of second connecting plate respectively and make two risers of fixing on two first connecting plates and two second connecting plates and install the steady upward movement of two diaphragms on two risers to this avoids the work piece to take place the shake when vertical removal.

Description

Lifting device is used in liquid crystal display production

Technical Field

The utility model belongs to the technical field of the jacking equipment technique and specifically relates to a lifting device is used in liquid crystal display production.

Background

At present, on a production line, some stacked products to be processed need to be frequently picked up by an operator, then the products are operated, then the processed products are placed on the production line and are conveyed to a next procedure for processing, the stacked products to be processed are harder to take downwards, the operator needs to bend over to take the products, and the production efficiency is directly reduced, however, an automatic lifting device on the market is complex in structure and high in manufacturing cost, a lifting device cited in patent No. CN203833132U comprises a support, a lifting frame, a motor, a guide rail, a transmission chain or a transmission belt, an auxiliary wheel assembly, two proximity switches, a photoelectric sensor and a controller, the guide rail is vertically fixed on the support, the lifting frame is connected with the guide rail in a sliding way, the auxiliary wheel assembly is fixedly connected with the upper part of the support, the motor is fixedly connected with the support, the transmission chain or the transmission belt is connected with the motor and the auxiliary wheel assembly in a transmission way, the lifting frame is fixedly connected with the transmission chain or the transmission belt, the two proximity switches are respectively and fixedly connected with the upper part and the lower part of the support and electrically connected with the controller, the photoelectric sensor is fixedly connected with the upper part of the support, and the photoelectric sensor is electrically connected with the controller.

The lifting device lifts by a single side when lifting operation is carried out, when a workpiece on the lifting frame is accumulated on one side, the lifting frame inevitably moves unstably when moving upwards, and the workpiece falls off from the lifting frame due to shaking.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lifting device is used in liquid crystal display production to thereby solve among the prior art technical problem that the elevator frame shakes easily when unilateral going up and down and leads to the work piece to drop.

The utility model provides a lifting device is used in liquid crystal display production, including supporting component, bearing platform and drive assembly, drive assembly installs on supporting component, bearing platform is located supporting component and bearing platform installs on drive assembly, supporting component includes first support piece and second support piece, first support piece and second support piece symmetry set up, and be equipped with between first support piece and the second support piece and be used for the dead lever of connecting both, drive assembly includes driving piece and linkage, the driving piece is installed on first support piece and driving piece and linkage transmission cooperation, some of linkage install on first support piece and the other part of linkage install on second support piece.

Further, the first support member includes an upper support plate, a lower support plate and two support rods, the two support rods are symmetrically arranged, the upper support plate is mounted at the top of the two support rods, the lower support plate 112 is mounted at the bottom of the two support rods, two guide rods are arranged between the upper supporting plate and the lower supporting plate, the two guide rods are vertical and arranged at intervals, the below of going up the backup pad is equipped with the axis of rotation that two intervals set up, the both ends of two axis of rotation all be equipped with last backup pad bottom fixed connection's locating plate, the axis of rotation can be the pivoted install on two locating plates and be equipped with rather than fixed connection's running gear in the axis of rotation, the side of every axis of rotation all is equipped with the drive axle, two the both ends of drive axle all are equipped with the top fixed connection of mounting panel and two mounting panels all with the bottom suspension fagging, and the drive axle can be the pivoted install in two mounting panels and drive epaxial be equipped with rather than fixed.

Further, second support piece includes bearing post, lower bearing board and two stands, and two stand intervals set up and the top of two stands all with last bearing post fixed connection, the bottom of two stands all with lower bearing board fixed connection, the below of going up bearing post all is equipped with two driving shafts, the both ends of two driving shafts all be equipped with the bottom fixed connection's of last bearing post cardboard, the driving shaft can the pivoted install on the cardboard and be equipped with on the driving shaft rather than fixed connection's first gear, every the side of driving shaft all is equipped with the driven shaft, the both ends of two driven shafts all be equipped with the baffle with the top fixed connection of lower bearing board, the driven shaft can rotate install on the baffle and be equipped with on the driven shaft rather than fixed connection's second gear.

Further, the driving piece includes driving motor, location axle and bearing frame, the bearing frame is installed on the bottom suspension fagging and the location axle can rotate and install on the bearing frame, be provided with rather than fixed connection's driven gear on the location axle, be equipped with on the driving motor with last backup pad fixed connection's connecting plate and be equipped with the driving gear on driving motor's the output shaft, the cover is equipped with rather than driven gear transmission complex first chain on the driving gear, the both ends of location axle all are equipped with rather than fixed connection's third gear.

Further, the linkage piece includes two first connecting plates and two second connecting plates, and two first connecting plates and two second connecting plate one-to-one symmetry set up, all are equipped with on two first connecting plates interval setting and two first connecting plates and contradict complex leading wheel with the guide bar lateral wall, all are equipped with first connecting block and second connecting block on two first connecting plates, first connecting block and second connecting block interval setting and first connecting block and second connecting block all form an organic whole with first connecting block fixed connection, two all be equipped with the second chain on the first connecting block, two the second chain all is the upper segment cover that the second chain all is annular and locates on the operation gear, and the hypomere cover of second chain locates on the third gear.

Furthermore, a third chain is arranged on a second connecting block arranged on the two first connecting plates, one end of each third chain is fixedly connected with the second connecting block, and the other end of each second chain is respectively meshed with a rotating gear and a second gear in sequence and then fixedly connected with a second connecting plate after winding the first gear.

Further, the bearing platform includes two risers and two diaphragms, two riser intervals set up and a riser and two first connecting plate fixed connection, another riser and two second connecting plate fixed connection and the top coplanar setting of two risers, two diaphragm intervals set up and the both ends of two diaphragms respectively with a riser fixed connection, the other end and another riser fixed connection of two diaphragms.

Compared with the prior art, the beneficial effects of the utility model reside in that: when the workpiece is lifted as required, the driving motor drives the driving gear on the output shaft of the driving motor to rotate, the driving gear can drive the driven gear to rotate through the first chain, the driven gear can drive the positioning shaft to rotate, the positioning shaft can drive the two third gears to rotate simultaneously, the two third gears can drive the two second chains respectively meshed with the two third gears to rotate simultaneously, the two second chains can drive the two first connecting plates to vertically move upwards by rotating simultaneously, the two first connecting plates can drive the third chains fixedly connected with the two first connecting plates to vertically move upwards by moving vertically upwards, and when the third chains are simultaneously pulled, the third chains can pull the second connecting plates to move upwards by rotating on the rotating gear, the second gears and the first gears, two first connecting plates and two second connecting plates drive two risers simultaneous upward movement respectively, two risers simultaneous upward movement can drive two diaphragms simultaneous upward movement, two diaphragms simultaneous upward movement can drive the work piece upward movement of placing on two diaphragms, through two second chains and two third chains simultaneous working stimulate two first connecting plates and two vertical movements of second connecting plate respectively and make two risers of fixing on two first connecting plates and two second connecting plates and install the steady upward movement of two diaphragms on two risers, thereby avoid the work piece to take place the shake when vertical removal.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

FIG. 3 is a partial perspective view of the first embodiment of the present invention;

fig. 4 is a schematic perspective view of the first support member of the present invention;

FIG. 5 is a partial schematic perspective view of the present invention;

FIG. 6 is a schematic perspective view of the support platform of the present invention;

fig. 7 is a schematic perspective view of the support assembly of the present invention.

Reference numerals:

the support assembly 1, the first support 11, the upper support plate 111, the lower support plate 112, the support rod 113, the guide rod 114, the rotating shaft 115, the positioning plate 116, the operating gear 117, the driving shaft 118, the mounting plate 119, the rotating gear 1110, the second support 12, the upper support column 121, the lower support plate 122, the upright post 123, the driving shaft 124, the clamping plate 125, the first gear 126, the driven shaft 127, the partition plate 128, the second gear 129, the fixed rod 13, the support platform 2, the vertical plate 21, the horizontal plate 22, the driving assembly 3, the driving member 31, the driving motor 311, the positioning shaft 312, the bearing seat 313, the driven gear 314, the connecting plate 315, the driving gear 316, the first chain 317, the third gear 318, the linkage member 32, the first connecting clamping plate 321, the second connecting clamping plate 322, the guide wheel 323, the first connecting block 324, the second connecting block 325, the second chain 326 and the third chain.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, an embodiment of the present invention provides a lifting device for producing a liquid crystal display panel, it is characterized by comprising a supporting component 1, a bearing platform 2 and a driving component 3, wherein the driving component 3 is arranged on the supporting component 1, the supporting platform 2 is positioned in the supporting component 1, the supporting platform 2 is arranged on the driving component 3, the support assembly 1 comprises a first support 11 and a second support 12, the first support 11 and the second support 12 are symmetrically arranged, and a fixing rod 13 for connecting the first support 11 and the second support 12 is provided between the two supports, the driving assembly 3 comprises a driving member 31 and a linkage member 32, the driving member 31 is mounted on the first supporting member 11, the driving member 31 is in transmission fit with the linkage member 32, a portion of the linkage 32 is mounted on the first support 11 and another portion of the linkage 32 is mounted on the second support 12.

Specifically, the first supporting member 11 includes an upper supporting plate 111, a lower supporting plate 112 and two supporting rods 113, the two supporting rods 113 are symmetrically disposed and the upper supporting plate 111 is mounted at the top of the two supporting rods 113, the lower supporting plate 112 is mounted at the bottom of the two supporting rods 113, two guide rods 114 are disposed between the upper supporting plate 111 and the lower supporting plate 112, the two guide rods 114 are both vertically disposed and spaced, two rotating shafts 115 disposed at intervals are disposed below the upper supporting plate 111, positioning plates 116 fixedly connected to the bottom of the upper supporting plate 111 are disposed at both ends of the two rotating shafts 115, the rotating shafts 115 are rotatably mounted on the two positioning plates 116 and operating gears 117 fixedly connected to the rotating shafts 115 are disposed on the rotating shafts 115, a driving shaft 118 is disposed beside each rotating shaft 115, two mounting plates 119 are disposed at both ends of the two driving shafts 118 and two mounting plates 119 are fixedly connected to the top of, the driving shaft 118 is rotatably installed on the two mounting plates 119 and the driving shaft 118 is provided with a rotating gear 1110 fixedly connected with the driving shaft, the two support rods 113 are used for supporting the upper support plate 111, the four positioning plates 116, the two rotating shafts 115 and the two running gears 117 installed on the upper support plate 111 are used for being matched with the linkage 32, and the four mounting plates 119, the two driving shafts 118 and the two rotating gears 1110 installed on the lower support plate 112 are used for being matched with the linkage 32.

Specifically, the second supporting member 12 includes an upper supporting column 121, a lower supporting plate 122 and two upright columns 123, the two upright columns 123 are disposed at intervals, the tops of the two upright columns 123 are both fixedly connected with the upper supporting column 121, the bottoms of the two upright columns 123 are both fixedly connected with the lower supporting plate 122, two driving shafts 124 are disposed below the upper supporting column 121, two ends of each driving shaft 124 are both provided with a clamping plate 125 fixedly connected with the bottom of the upper supporting column 121, the driving shafts 124 are rotatably mounted on the clamping plates 125 and are provided with first gears 126 fixedly connected with the driving shafts 124, a driven shaft 127 is disposed beside each driving shaft 124, two ends of each driven shaft 127 are both provided with a partition plate 128 fixedly connected with the top of the lower supporting plate 122, the driven shafts 127 are rotatably mounted on the partition plates 128 and are provided with second gears 129 fixedly connected with the driven shafts 127, the two upright columns 123 are used for supporting the upper supporting column 121, four clamping plates 125, two driving shafts 124 and two first gears 126 mounted on the upper support column 121 are used for cooperating with the linkage 32, and four partition plates 128, two driven shafts 127 and two second gears 129 on the lower support plate 122 are used for cooperating with the linkage 32.

Specifically, the driving member 31 includes a driving motor 311, a positioning shaft 312 and a bearing seat 313, the bearing seat 313 is mounted on the lower support plate 112, the positioning shaft 312 is rotatably mounted on the bearing seat 313, a driven gear 314 fixedly connected to the positioning shaft 312 is disposed on the positioning shaft 312, a connecting plate 315 fixedly connected to the upper support plate 111 is disposed on the driving motor 311, a driving gear 316 is disposed on an output shaft of the driving motor 311, a first chain 317 in transmission fit with the driven gear 314 is sleeved on the driving gear 316, third gears 318 fixedly connected to both ends of the positioning shaft 312 are disposed at both ends of the positioning shaft 312, the driving motor 311 rotates through the driving gear 316 on an output shaft thereof, the driving gear 316 rotates to drive the driven gear 314 to rotate through the first chain 317, the driven gear 314 rotates to drive the positioning shaft 312 to rotate, the positioning shaft 312 rotates to drive the two third gears 318 to rotate, the two third gears 318 rotate to move the link member 32 vertically.

Specifically, the linkage member 32 includes two first connecting clamping plates 321 and two second connecting clamping plates 322, the two first connecting clamping plates 321 and the two second connecting clamping plates 322 are symmetrically arranged one by one, the two first connecting clamping plates 321 are arranged at intervals, guide wheels 323 which are matched with the outer side walls of the guide rods 114 in an abutting manner are arranged on the two first connecting clamping plates 321, first connecting blocks 324 and second connecting blocks 325 are arranged on the two first connecting clamping plates 321, the first connecting blocks 324 and the second connecting blocks 325 are arranged at intervals, the first connecting blocks 324 and the second connecting blocks 325 are fixedly connected with the first connecting blocks 324 to form a whole, second chains 326 are arranged on the two first connecting blocks 324, the two second chains 326 are annular, the upper sections of the second chains 326 are sleeved on the operating gear 117, the lower sections of the second chains 326 are sleeved on the third gear 318, the two first connecting clamping plates 321 and the two second connecting clamping plates 322 form a rectangular structure, two second chains 326 remove and to drive two first connecting snap-gauge 321 vertical movement, and when two first connecting snap-gauge 321 vertical movement, the leading wheel 323 that sets up on two first connecting snap-gauge 321 can provide the direction when two first connecting snap-gauge 321 remove in order to prevent that two second connecting snap-gauge 322 from breaking away from guide bar 114.

Specifically, the second connecting blocks 325 arranged on the two first connecting clamping plates 321 are provided with third chains 327, one ends of the two third chains 327 are fixedly connected with the second connecting blocks 325, the other ends of the two second chains 326 are respectively and sequentially meshed with a rotating gear 1110 and a second gear 129 and then fixedly connected with a second connecting clamping plate 322 after winding around the first gear 126, the two first connecting clamping plates 321 can vertically move to drive the two third chains 327 to move, the two third chains 327 can move to pull the two second connecting clamping plates 322 to vertically move, the supporting platform 2 is installed on the two first connecting blocks 324 and the two second connecting blocks 325, and the two first connecting blocks 324 and the two second connecting blocks 325 can vertically move to drive the supporting platform 2 to vertically move.

Specifically, the supporting platform 2 comprises two vertical plates 21 and two transverse plates 22, the two vertical plates 21 are arranged at intervals, one vertical plate 21 is fixedly connected with the two first connecting clamping plates 321, the other vertical plate 21 is fixedly connected with the two second connecting clamping plates 322, the tops of the two vertical plates 21 are coplanar, the two transverse plates 22 are arranged at intervals, two ends of the two transverse plates 22 are respectively fixedly connected with one vertical plate 21, the other ends of the two transverse plates 22 are fixedly connected with the other vertical plate 21, the two first connecting clamping plates 321 can drive one vertical plate 21 to vertically move upwards, the two first connecting clamping plates 321 and the two second connecting clamping plates 322 respectively drive the two vertical plates 21 to simultaneously move upwards, the two vertical plates 21 can drive the two transverse plates 22 to simultaneously move upwards, the two transverse plates 22 can drive workpieces placed on the two transverse plates 22 to move upwards by simultaneously moving upwards, the two first connecting clamping plates 321 and the two second connecting clamping plates 322 are respectively pulled to vertically move by the simultaneous work of the two second chains 326 and the two third chains 327, so that the two vertical plates 21 fixed on the two first connecting clamping plates 321 and the two second connecting clamping plates 322 and the two transverse plates 22 installed on the two vertical plates 21 smoothly move upwards.

The utility model discloses a theory of operation: the utility model discloses when using, through placing the work piece on two diaphragm 22, when the work piece rose when needs, driving motor 311 drives its epaxial driving gear 316 of output and rotates, driving gear 316 can drive driven gear 314 through first chain 317 and rotate, driven gear 314 rotates and to drive location axle 312 and rotate, location axle 312 rotates and to drive two third gears 318 and rotate simultaneously, two third gears 318 rotate simultaneously and to drive respectively and rotate with two second chains 326 that two third gears 318 mesh, two second chains 326 rotate simultaneously and to drive two vertical upward movements of first connecting cardboard 321, can stimulate rather than fixed connection's third chain 327 when two vertical upward movements of first connecting cardboard 321 and carry out vertical upward movement, after third chain 327 is promoted simultaneously, third chain 327 can be at rotating gear 1110, After the second gear 129 and the first gear 126 rotate, the second connecting clamping plate 322 is pulled to move upwards, the two first connecting clamping plates 321 and the two second connecting clamping plates 322 respectively drive the two vertical plates 21 to move upwards at the same time, the two vertical plates 21 can drive the two transverse plates 22 to move upwards at the same time, the two transverse plates 22 can drive the workpieces placed on the two transverse plates 22 to move upwards at the same time, the two second chains 326 and the two third chains 327 work simultaneously to respectively pull the two first connecting clamping plates 321 and the two second connecting clamping plates 322 to vertically move so that the two vertical plates 21 fixed on the two first connecting clamping plates 321 and the two second connecting clamping plates 322 and the two transverse plates 22 installed on the two vertical plates 21 move upwards stably, and therefore the workpieces are prevented from shaking during vertical movement, the two second chains 326 and the two third chains 327 form four pulling points through the two first connecting clamping plates 321 and the two second connecting clamping plates 322 And the four pulling points can more stably pull the bearing platform 2 to vertically move upwards or downwards.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (7)

1. The lifting device for the liquid crystal display screen production is characterized by comprising a supporting component (1), a bearing platform (2) and a driving component (3), wherein the driving component (3) is installed on the supporting component (1), the bearing platform (2) is positioned in the supporting component (1) and the bearing platform (2) is installed on the driving component (3), the supporting component (1) comprises a first supporting piece (11) and a second supporting piece (12), the first supporting piece (11) and the second supporting piece (12) are symmetrically arranged, a fixing rod (13) for connecting the first supporting piece (11) and the second supporting piece (12) is arranged between the first supporting piece (11) and the second supporting piece (12), the driving component (3) comprises a driving piece (31) and a linkage piece (32), the driving piece (31) is installed on the first supporting piece (11) and the driving piece (31) is in transmission fit with the linkage piece (32), one part of the linkage member (32) is mounted on the first support member (11) and the other part of the linkage member (32) is mounted on the second support member (12).

2. The lifting device as claimed in claim 1, wherein the first supporting member (11) comprises an upper supporting plate (111), a lower supporting plate (112) and two supporting rods (113), the two supporting rods (113) are symmetrically arranged and the upper supporting plate (111) is mounted on the tops of the two supporting rods (113), the lower supporting plate (112) is mounted on the bottoms of the two supporting rods (113), two guide rods (114) are arranged between the upper supporting plate (111) and the lower supporting plate (112), the two guide rods (114) are vertically arranged at intervals, two rotating shafts (115) are arranged below the upper supporting plate (111) at intervals, two positioning plates (116) fixedly connected with the bottoms of the upper supporting plate (111) are arranged at two ends of the two rotating shafts (115), the rotating shafts (115) are rotatably mounted on the two positioning plates (116) and operating gears (117) fixedly connected with the rotating shafts (115) are arranged on the rotating shafts (115), the side of every axis of rotation (115) all is equipped with drive axle (118), two the both ends of drive axle (118) all are equipped with mounting panel (119) and two mounting panels (119) all with the top fixed connection of lower support plate (112), drive axle (118) can be the pivoted install in two mounting panels (119) and drive axle (118) on be equipped with rather than fixed connection's rotating gear (1110).

3. The lifting device for the production of the liquid crystal display screen according to claim 2, wherein the second supporting member (12) comprises an upper supporting column (121), a lower supporting plate (122) and two upright columns (123), the two upright columns (123) are arranged at intervals, the tops of the two upright columns (123) are fixedly connected with the upper supporting column (121), the bottoms of the two upright columns (123) are fixedly connected with the lower supporting plate (122), two driving shafts (124) are arranged below the upper supporting column (121), clamping plates (125) fixedly connected with the bottoms of the upper supporting column (121) are arranged at the two ends of the two driving shafts (124), the driving shafts (124) are rotatably arranged on the clamping plates (125), first gears (126) fixedly connected with the driving shafts (124) are arranged on the driving shafts (124), a driven shaft (127) is arranged beside each driving shaft (124), two ends of the two driven shafts (127) are respectively provided with a partition plate (128) fixedly connected with the top of the lower bearing plate (122), the driven shafts (127) can be rotatably arranged on the partition plates (128), and the driven shafts (127) are provided with second gears (129) fixedly connected with the driven shafts (127).

4. The lifting device for the liquid crystal display production of claim 3, wherein the driving member (31) comprises a driving motor (311), a positioning shaft (312) and a bearing seat (313), the bearing seat (313) is mounted on the lower support plate (112) and the positioning shaft (312) can be rotatably mounted on the bearing seat (313), the positioning shaft (312) is provided with a driven gear (314) fixedly connected with the positioning shaft, the driving motor (311) is provided with a connecting plate (315) fixedly connected with the upper support plate (111) and an output shaft of the driving motor (311) is provided with a driving gear (316), the driving gear (316) is sleeved with a first chain (317) in transmission fit with the driven gear (314), and both ends of the positioning shaft (312) are provided with third gears (318) fixedly connected with the positioning shaft.

5. The lifting device for producing the LCD screen as claimed in claim 4, wherein the linkage member (32) comprises two first connecting clamping plates (321) and two second connecting clamping plates (322), the two first connecting clamping plates (321) and the two second connecting clamping plates (322) are symmetrically arranged one by one, the two first connecting clamping plates (321) are arranged at intervals, guide wheels (323) which are in interference fit with the outer side walls of the guide rods (114) are arranged on the two first connecting clamping plates (321), first connecting blocks (324) and second connecting blocks (325) are arranged on the two first connecting clamping plates (321), the first connecting blocks (324) and the second connecting blocks (325) are arranged at intervals, the first connecting blocks (324) and the second connecting blocks (325) are fixedly connected with the first connecting blocks (324) to form a whole, second chains (326) are arranged on the two first connecting blocks (324), the two second chains (326) are annular, the upper sections of the second chains (326) are sleeved on the running gear (117), and the lower sections of the second chains (326) are sleeved on the third gear (318).

6. The lifting device for the production of the liquid crystal display screen of claim 5, wherein the second connecting blocks (325) arranged on the two first connecting clamping plates (321) are provided with third chains (327), one ends of the two third chains (327) are fixedly connected with the second connecting blocks (325), and the other ends of the two second chains (326) are respectively meshed with a rotating gear (1110) and a second gear (129) in sequence and then fixedly connected with a second connecting clamping plate (322) after winding around the first gear (126).

7. The lifting device for the production of liquid crystal display of claim 6, characterized in that, bearing platform (2) includes two risers (21) and two diaphragm (22), two riser (21) intervals set up and a riser (21) and two first connection cardboard (321) fixed connection, the top coplanar setting of another riser (21) and two second connection cardboard (322) fixed connection and two risers (21), two diaphragm (22) intervals set up and the both ends of two diaphragm (22) respectively with a riser (21) fixed connection, the other end and another riser (21) fixed connection of two diaphragm (22).

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