CN220085192U - Three-pressing-wheel pressing mechanism for three-edge pressing of liquid crystal screen - Google Patents

Abstract

The utility model discloses a three-pressing-wheel pressing mechanism for pressing three sides of a liquid crystal screen, which belongs to the field of liquid crystal screen processing equipment and comprises a workbench; the supporting and jacking component is detachably arranged on the workbench and is used for supporting and jacking the liquid crystal screen; four sets of centering components, which are respectively detachably installed on four sides of the workbench. According to the three-pressing-wheel pressing mechanism for pressing three sides of the liquid crystal screen, the phenomenon of deflection of the liquid crystal screen during pressing is prevented through the arranged centering component, the three sides of the liquid crystal screen can be pressed stably through the arranged pressing component, the relative silks are smooth during the whole movement of the pressing component, the liquid crystal screen cannot shake during pressing, the pressing is relatively in place, the number of OKs and good products of the liquid crystal screen during processing is large, and the output of NG products can be avoided or reduced.

Description

Three-pressing-wheel pressing mechanism for three-edge pressing of liquid crystal screen

Technical Field

The utility model belongs to the field of liquid crystal screen processing equipment, and particularly relates to a three-pressing-wheel pressing mechanism for pressing three sides of a liquid crystal screen.

Background

In the processing of the liquid crystal screen, the liquid crystal screen and the touch screen are attached together through optical cement; when using pinch roller mechanism to press and touch the subsides, need place the LCD screen on the touch-sensitive screen, simultaneously need to place touch-sensitive screen and display screen in climbing mechanism jointly, carry pinch roller mechanism below through climbing mechanism, use pinch roller mechanism to laminate LCD screen and touch-sensitive screen, because the touch-sensitive screen is thinner, the weight of lower LCD screen of hardness is too big, if the in-process LCD screen to the pressfitting of LCD screen appears rocking, the unable place of pressfitting, the stationarity and the precision of jacking are low, then will touch-sensitive screen fracturing easily, lead to the yields decline.

Therefore, how to press the four sides of the liquid crystal screen in place and how to make the liquid crystal screen not shake during press fit, how to make the jacking mechanism stably move to the lower part of the pinch roller mechanism, ensure high jacking precision and avoid convex hulls on the bottom surface of the liquid crystal screen product is a urgent need to solve or at least alleviate the problem.

The present utility model seeks to mitigate or at least alleviate such problems or drawbacks by providing a new or otherwise improved three-press wheel press mechanism.

Disclosure of Invention

Aiming at one or more of the defects or improvement requirements of the prior art, the utility model provides a three-pressing-wheel pressing mechanism for pressing three sides of a liquid crystal screen, which has the advantages of good pressing in place, good centering and positioning effect on the liquid crystal screen, high jacking precision, stable operation and capability of avoiding convex hulls on the bottom surface of a product.

In order to achieve the above object, the present utility model provides a three-press-roller pressing mechanism for pressing three sides of a liquid crystal screen, the three-press-roller pressing mechanism comprising

A work table;

the supporting and jacking component is detachably arranged on the workbench and is used for supporting and jacking the liquid crystal screen;

four groups of centering members which are respectively and detachably arranged on four side surfaces of the workbench, and when the output ends of each two opposite groups of centering members extend out, the four groups of centering members are used for centering and clamping the liquid crystal screen in the supporting jacking member; and

the three groups of pressing members are detachably arranged on three sides of the upper end face of the workbench and are used for pressing the liquid crystal screen in the supporting jacking member.

As a further improvement of the present utility model, the pressing member includes

The first pressing plate is detachably arranged on the side edge of the upper end face of the workbench, one end of the first pressing plate is provided with a first side plate, a first pressing motor is arranged on the first side plate, the output end of the first pressing motor is detachably connected with a case, a first driving wheel is arranged in the case, a first driven wheel is arranged in the first pressing plate, and a first belt is sleeved on the first driving wheel and the first driven wheel;

the first lantern ring is detachably arranged on the first belt, a second pressing plate is arranged on the first lantern ring, the second pressing plate is vertical to the first lantern ring along the longitudinal direction of the first lantern ring, one end of the second pressing plate is provided with a second side plate, a second pressing motor is detachably arranged on the second side plate, the output end of the second pressing motor is provided with a second driving wheel, a second driven wheel is arranged in the second pressing plate, and a second belt is sleeved on the second driving wheel and the second driven wheel;

the second lantern ring is detachably arranged on the second belt and is provided with a third pressing plate which is perpendicular to the second lantern ring along the transverse direction of the second lantern ring, the third pressing plate is detachably connected with a third pressing motor, the output end of the third pressing motor is provided with a third driving wheel, a third driven wheel is arranged in the third pressing plate, and a third belt is sleeved on the third driving wheel and the third driven wheel; and

and the third side plate is detachably arranged on the third belt, and a pinch roller for pressing the liquid crystal screen is detachably arranged on the third side plate.

As a further improvement of the utility model, a pressing sliding rail is detachably arranged on the third pressing plate, a pressing sliding block is detachably arranged on the third side plate, the pressing sliding block is slidably arranged in the pressing sliding rail, and the size of the pressing sliding block is matched with the size of the pressing sliding rail.

As a further improvement of the present utility model, the centering member includes

A base plate detachably mounted on a side surface of the table;

the centering sliding block is detachably arranged on the bottom surface of the base plate;

the centering slide rail is slidably arranged in the centering slide block;

the centering plate is detachably arranged at one end of the centering sliding rail;

the electric cylinder is detachably arranged on the bottom surface of the base plate, and the output end of the electric cylinder is detachably connected with the middle plate;

the centering base is detachably arranged at one end of the centering plate, which is far away from the output end of the electric cylinder; and

the roller is rotatably arranged in the centering base.

As a further improvement of the present utility model, the supporting and elevating member includes

The sliding rod is detachably arranged on the workbench, and the left end and the right end of the sliding rod are respectively connected with a left baffle and a right baffle;

the two groups of gear boxes are respectively connected with the left baffle plate and the right baffle plate and are communicated with the gear boxes;

the two groups of sliding rails are respectively and detachably connected to the left baffle and the right baffle;

the supporting component can slide up and down along the sliding rail, is connected with the output end of the gear box and is used for supporting the liquid crystal screen, and a plurality of groups of attaching pieces for preventing convex hulls from appearing on the bottom surface of the liquid crystal screen are arranged in the supporting component; and

and a stepper motor connected to the set of gearboxes, wherein when the output end of the stepper motor rotates, the output end of the gearbox is driven to move so that the supporting member is wholly lifted or lowered along the sliding rail.

As a further improvement of the utility model, a rotating rod is arranged in the gear box and can extend into the sliding rod in a penetrating way, the rotating rod is detachably connected with the output end of the stepping motor, two groups of first bevel gears are respectively arranged at two ends of the rotating rod, two groups of second bevel gears are respectively meshed with the two groups of first bevel gears, two groups of ball screws are respectively and removably inserted into the two groups of first bevel gears, a shaft seat matched with the ball screws is arranged on the supporting member, and the rotating rod, the first bevel gears, the second bevel gears and the ball screws jointly form the output end of the gear box;

when the output end of the stepping motor rotates, the first bevel gear, the second bevel gear and the ball screw are used for driving the first bevel gear, the second bevel gear and the ball screw to rotate, so that the whole supporting member is driven to ascend or descend along the sliding rail.

As a further improvement of the utility model, the support member comprises

The connecting frame can slide up and down along the sliding rail;

the sliding block is detachably arranged on the connecting frame and can slide in the sliding rail;

the support plate is detachably arranged on the connecting frame and is internally provided with a plurality of groups of pin holes; and

the multiple groups of fitting components are removably arranged in the pin holes.

As a further improvement of the utility model, the fitting piece comprises

A support rod removably disposed within the pin bore; and

the top is detachably arranged on the supporting rod, and the size of the top is matched with that of the supporting rod, so that the top is used for preventing the bottom surface of the liquid crystal screen from forming a convex hull;

the bottom of the supporting rod is also detachably provided with a bolt, and the size of the bolt is matched with the size of the bolt hole, wherein when the bolt is inserted into the pin hole, the supporting rod is contacted with the supporting plate.

As a further improvement of the utility model, a first attaching plate is detachably arranged on the sliding rail and is used for attaching the side edge of the liquid crystal screen.

As a further improvement of the utility model, a guide rail is also detachably arranged on the connecting frame, a second laminating plate is detachably arranged on the guide rail, the size of the second laminating plate is matched with the size of the guide rail, a rubber cushion is also detachably arranged on the second laminating plate, and the size of the rubber cushion is matched with the size of the second laminating plate.

In general, the above technical solutions conceived by the present utility model have the beneficial effects compared with the prior art including:

according to the three-pressing-wheel pressing mechanism for pressing three sides of the liquid crystal screen, the liquid crystal screen can be supported and lifted through the supporting lifting member, stability is high during supporting and the liquid crystal screen cannot be damaged, meanwhile, the supporting lifting member can prevent the phenomenon that the liquid crystal screen directly contacts with the inner member of the supporting lifting member to form convex hulls during pressing, the lifting pushing process is smooth, the supporting lifting member can be used for carrying out centering clamping and positioning in the front-back left-right directions after the supporting lifting member supports the liquid crystal screen, so that the phenomenon that the liquid crystal screen deflects during pressing can be prevented, the three sides of the liquid crystal screen can be stably pressed through the pressing member, opposite silks are smooth during integral movement of the pressing member, the liquid crystal screen cannot shake during pressing, the pressing is relatively in place, OK products and good products during processing of the liquid crystal screen can be avoided or reduced, and the output of NG products can be avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a three-pinch-roller lamination mechanism for three-sided lamination according to the present utility model;

FIG. 2 is an overall top view of a three-pinch roller press mechanism for three-sided press according to the present utility model;

FIG. 3 is a left side view of a three-pinch roller press mechanism for three-sided press according to the present utility model;

FIG. 4 is a schematic view of the structure of the workbench of the utility model;

FIG. 5 is a schematic view of the whole structure of the pressing member of the present utility model;

FIG. 6 is a schematic view of the press-fit member from another perspective;

FIG. 7 is a schematic view of the overall structure of the centering member of the present utility model;

FIG. 8 is a schematic view of the entire structure of the jacking mechanism of the present utility model;

FIG. 9 is a schematic view of the entire structure of the jacking mechanism from another perspective;

FIG. 10 is a front view of the entire climbing mechanism of the present utility model;

FIG. 11 is a top view of the entire climbing mechanism of the present utility model;

fig. 12 is a schematic view showing the structure of the gear case of the present utility model in which the first bevel gear and the second bevel gear are engaged with each other and connected to the ball screw.

Like reference numerals denote like technical features throughout the drawings, in particular: 1. a work table; 2. a pressing member; 21. a first pressing plate; 211. a first side plate; 212. a first press-fit motor; 213. a chassis; 22. a first collar; 221. a second pressing plate; 222. a second side plate; 223. a second press-fit motor; 23. a second collar; 24. a third pressing plate; 241. a third press-fit motor; 242. a third side plate; 25. pressing the sliding rail; 26. pressing the sliding block; 27. a pinch roller; 3. a centering member; 31. a substrate; 32. centering the sliding block; 33. centering the slide rail; 34. centering plates; 35. an electric cylinder; 36. centering the base; 37. a roller; 4. supporting the jacking member; 41. a slide bar; 411. a left baffle; 412. a right baffle; 413. a gear box; 414. a slide rail; 415. a rotating rod; 416. a first bevel gear; 417. a second bevel gear; 418. a ball screw; 42. a stepping motor; 43. a support member; 431. a connection frame; 432. a slide block; 433. a first bonding board; 434. a guide rail; 435. a second bonding board; 436. a support plate; 437. a pin hole; 44. a support rod; 441. and (5) a plug.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The terms "comprises," "comprising," and/or the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly formal manner.

In the embodiment, as shown in fig. 1-12, a three-pressing-wheel pressing mechanism for pressing three sides of a liquid crystal screen is characterized in that the three-pressing-wheel pressing mechanism comprises a workbench 1; a supporting and lifting member 4 detachably arranged on the workbench 1 and used for supporting and lifting the liquid crystal screen; four sets of centering members 3 detachably mounted on four sides of the workbench 1, respectively, wherein when the output ends of each two sets of centering members 3 extend out, the four sets of centering members are used for centering and clamping the liquid crystal screen in the supporting jacking member 4; and three groups of pressing members 2 which are respectively and detachably arranged on three sides of the upper end face of the workbench 1 and are used for pressing the liquid crystal screen in the supporting and jacking member 4.

The utility model is based on an integral conception that the liquid crystal screen can be supported and lifted through the supporting and lifting member 4, the stability during supporting is higher, the liquid crystal screen is not damaged, meanwhile, the supporting and lifting member 4 can prevent the phenomenon that the liquid crystal screen directly contacts with the inner member of the supporting and lifting member 4 to form convex hulls during pressing, the lifting and pushing process is smoother, the supporting and lifting member 4 can perform centering clamping and positioning in the front, back, left and right directions after supporting and lifting the liquid crystal screen, so that the phenomenon that the liquid crystal screen deflects during pressing can be prevented, the three sides of the liquid crystal screen can be stably pressed through the pressing member 2, the relative smoothness during the integral movement of the pressing member 2 can not occur, the liquid crystal screen can not shake during pressing, the relative position of pressing can enable the liquid crystal screen to have more OK products and good products during processing, and the output of NG products can be avoided or reduced.

The following further explains the constituent parts of the pressing member 2, which is a preferred embodiment of the pressing member 2, wherein the pressing member 2 includes a first pressing plate 21 detachably mounted on a side of an upper end surface of the table 1, one end of the first pressing plate has a first side plate 211, the first side plate 211 has a first pressing motor 212, an output end of the first pressing motor 212 is detachably connected with a case 213, a first driving wheel is provided in the case 213, a first driven wheel is provided in the first pressing plate 21, and a first belt is sleeved on the first driving wheel and the first driven wheel; the first lantern ring 22 is detachably arranged on the first belt, a second pressing plate 221 is arranged on the first lantern ring 22, the second pressing plate 221 is perpendicular to the first lantern ring 22 along the longitudinal direction of the first lantern ring 22, one end of the second pressing plate 221 is provided with a second side plate 222, a second pressing motor 223 is detachably arranged on the second side plate 222, the output end of the second pressing motor 223 is provided with a second driving wheel, a second driven wheel is arranged in the second pressing plate 221, and a second belt is sleeved on the second driving wheel and the second driven wheel; the second lantern ring 23 is detachably arranged on the second belt, a third pressing plate 24 is arranged on the second belt, the third pressing plate 24 is perpendicular to the second lantern ring 23 along the transverse direction of the second lantern ring 23, a third pressing motor 241 is detachably connected to the third pressing plate 24, a third driving wheel is arranged at the output end of the third pressing motor 241, a third driven wheel is arranged in the third pressing plate 24, and a third belt is sleeved on the third driving wheel and the third driven wheel; and a third side plate 242 detachably arranged on the third belt, and a pinch roller 27 for pressing the liquid crystal screen is detachably arranged on the third side plate 242.

It should be noted that, the first collar 22 and the derivative on the first collar 22 move along with the movement of the first collar 22 on the first belt, in a deeper way, the first pressing motor 212 drives the first driving wheel to rotate, the first driving wheel and the first driven wheel synchronously rotate, and drive the first belt to move back and forth, so that the first collar 22 and the derivative on the first collar 22 can move back and forth on the first belt to change the lateral position, in the same way, the second pressing motor 223 drives the second driving wheel and the second driven wheel to rotate, and drives the second belt to move up and down, in the same way, the second collar 23 and the derivative on the second collar 23 can be driven to move up and down along the lateral direction perpendicular to the first collar 22 to change the longitudinal position, in the same way, the output end of the third pressing motor 241 drives the third driving wheel and the third driven wheel to rotate, so as to drive the third belt to move, and in the same way, the third side plate 242 and the pinch roller 27 on the third side plate 242 can change the front and back direction to realize the left, right, left, right, front and back dimensions of the liquid crystal screen;

furthermore, the use principle and the motion principle of the three sets of pressing members 2 are the same, and of course, the motor may be a stepper motor, and it is to be noted that the control principle of the stepper motor is a known technology, and in this embodiment, too much description is omitted.

In some embodiments, in order to facilitate the smooth running of the whole pressing wheel 27 on the third pressing plate 24 without shaking, a pressing sliding rail 25 is detachably mounted on the third pressing plate 24, a pressing sliding block 26 is detachably disposed on the third side plate 242, the pressing sliding block 26 is slidably disposed in the pressing sliding rail 25, and the size of the pressing sliding block 26 is matched with the size of the pressing sliding rail 25.

The following further explains the constituent parts of the centering member 3, of course a preferred embodiment of the centering member 3, the centering member 3 comprising a base plate 31 removably mounted on the lateral surface of the table 1; a centering slider 32 detachably disposed on the bottom surface of the base plate 31; a centering slide rail 33 slidably disposed within the centering slider 32; a centering plate 34 detachably mounted to one end of the centering rail 33; and an electric cylinder 35 detachably mounted on the bottom surface of the base plate 31, and having an output end detachably connected to the centering plate 34; a centering base 36 detachably mounted to one end of the centering plate 34 remote from the output end of the electric cylinder 35; and a roller 37 rotatably disposed in the centering base 36.

The whole centering member 3 is used according to the principle that the output end of the electric cylinder 35 is pushed out to push out the centering plate 34, and it can be understood that when the whole idea of the utility model is applied, two sets of opposite centering plates 34 are pushed out simultaneously to ensure centering and clamping of the liquid crystal screen supported and lifted by the supporting and lifting member 4, and centering and clamping can be performed in two directions from front to back and left to right, and it should be noted that the centering and clamping referred to herein is not to excessively secure the centering and clamping of the liquid crystal screen set, and due to the rollers 37 arranged, the centering and clamping can be better centered and simultaneously the clamping can slightly slide along the rollers 37, so that ambiguity is not caused.

In a more specific embodiment, the centering seats 36 and rollers 37 in each set of centering members 3 are three, although in other embodiments, different numbers may be laid out depending on the actual use.

The following further explains the construction of the supporting and lifting member 4, which is a preferred embodiment of the supporting and lifting member 4, wherein the supporting and lifting member 4 comprises a sliding rod 41 detachably arranged on the workbench 1, and a left baffle 411 and a right baffle 412 are respectively connected to the left end and the right end of the sliding rod; two sets of gear boxes 413 connected to the left baffle 411 and the right baffle 412, respectively, and in communication with the gear boxes 413; two sets of sliding rails 414 detachably connected to the left baffle 411 and the right baffle 412, respectively; the supporting member 43 can slide up and down along the sliding rail 414, is connected with the output end of the gear box 413, is used for supporting the liquid crystal screen, and is provided with a plurality of groups of attaching pieces for preventing the bottom surface of the liquid crystal screen from protruding; and a stepper motor 42 connected to a set of gearboxes 413, wherein when the output of the stepper motor 42 rotates, the output for driving the gearboxes 413 moves to raise or lower the support member 43 as a whole along the slide rails 414.

In a more specific embodiment, a rotating rod 415 is arranged in the gear box 413, the rotating rod 415 can penetrate and extend into the sliding rod 41, the rotating rod 415 is detachably connected with the output end of the stepping motor 42, two groups of first bevel gears 416 are respectively arranged at two ends of the rotating rod 415, two groups of second bevel gears 417 are respectively meshed with the two groups of first bevel gears 416, two groups of ball screws 418 are respectively and removably inserted into the two groups of first bevel gears 416, a shaft seat matched with the ball screws 418 is arranged on the supporting member 43, and the rotating rod 415, the first bevel gears 416, the second bevel gears 417 and the ball screws 418 jointly form the output end of the gear box 413;

in further explanation of the use principle of the stepper motor 42 and the supporting member 43, when the output end of the stepper motor 42 rotates, the first bevel gear 416, the second bevel gear 417 and the ball screw 418 are used to drive the supporting member 43 to ascend or descend along the sliding rail 414.

Next, the structure and construction of the supporting member 43 will be further explained, and the supporting member 43 includes a connection frame 431 that can slide up and down along the sliding rail 414; a sliding block 432 detachably mounted on the connection frame 431 and sliding in the sliding rail 414; a support plate 436 detachably mounted on the connection frame 431, and having a plurality of groups of pin holes 437 formed therein; and a plurality of sets of fitting members removably disposed within the pin holes 437.

The plurality of sets of bonding components can prevent the phenomenon that the liquid crystal screen can generate convex hulls when being pressed and contacted when being directly bonded with the supporting plate 436.

In some embodiments, the specific structural configuration of the abutment is further illustrated, although it is a preferred manner of abutment herein that the abutment includes a support rod 44 removably disposed within the pin aperture 437; the top 441 is detachably mounted on the supporting rod 44, and the size of the top 441 is matched with the size of the supporting rod 44, so as to prevent the bottom surface of the liquid crystal screen from forming a convex hull; a latch is detachably mounted to the bottom of the support rod 44, and the size of the latch is adapted to the size of the pin hole 437, wherein the support rod 44 contacts the support plate 436 when the latch is inserted into the pin hole 437.

Moreover, the whole supporting rod 44 can be conveniently assembled and disassembled in the pin hole 437, and meanwhile, the insertion of different positions can be confirmed according to the actual use condition;

the number of the pin holes 437 can be arranged according to actual use requirements;

in a more specific embodiment, the number of support rods 44 and plugs 441 is 8, although other numbers are possible in other embodiments.

In some embodiments, in order to further improve the clamping and attaching effect on the side surface of the lcd screen, a first attaching plate 433 is detachably mounted on the sliding rail 414, and the first attaching plate 433 is used for attaching the side surface of the lcd screen.

In some embodiments, in order to secondarily improve the clamping effect on the side surface of the lcd screen, and also in order to prevent the damage to the side surface of the lcd screen, a guide rail 434 is detachably mounted on the connection frame 431, a second adhesive plate 435 is detachably mounted on the guide rail 434, the size of the second adhesive plate 435 is matched with the size of the guide rail 434, and a rubber pad is detachably mounted on the second adhesive plate 435, and the size of the rubber pad is matched with the size of the second adhesive plate 435.

In conclusion, through the supporting jacking component 4 that sets up, can support and jack up the LCD screen, the steadiness when supporting is higher and can not harm the LCD screen, simultaneously supporting jacking component 4 can prevent that the LCD screen from directly touching with supporting jacking component 4 internal structure piece from appearing the convex closure phenomenon when carrying out the pressfitting, the comparatively smooth in-process of jacking impetus, through the centering component 3 of setting, can support jacking component 4 and jack up the LCD screen after carrying out the centering centre gripping location of four directions about, in order to prevent that the LCD screen from appearing the phenomenon of biasing when carrying out the pressfitting, through the pressfitting component 2 of setting, can carry out steady pressfitting to the trilateral department of LCD screen, and relative smooth and flat when the motion of pressfitting component 2 is whole, the LCD screen can not appear rocking at the in-process of pressfitting, the relative target position of pressfitting can be so that the LCD screen carries out the article and OK when processing more, can avoid or reduce the output of NG article.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A three pinch roller pressing mechanism for being directed at trilateral pressfitting of LCD screen, its characterized in that, this three pinch roller pressing mechanism includes

A work table (1);

the supporting and jacking component (4) is detachably arranged on the workbench (1) and is used for supporting and jacking the liquid crystal screen;

four groups of centering members (3) which are respectively and detachably arranged on four side surfaces of the workbench (1), and when the output ends of each two opposite groups of centering members (3) extend out, the four groups of centering members are used for centering and clamping the liquid crystal screen in the supporting jacking member (4); and

the three groups of pressing members (2) are detachably arranged on three sides of the upper end face of the workbench (1) and are used for pressing the liquid crystal screen in the supporting and jacking member (4).

2. Three-pinch roller press mechanism for pressing three sides of liquid crystal screen according to claim 1, characterized in that the press member (2) comprises

The first pressing plate (21) is detachably arranged on the side edge of the upper end face of the workbench (1), one end of the first pressing plate is provided with a first side plate (211), the first side plate (211) is provided with a first pressing motor (212), the output end of the first pressing motor (212) is detachably connected with a case (213), a first driving wheel is arranged in the case (213), a first driven wheel is arranged in the first pressing plate (21), and a first belt is sleeved on the first driving wheel and the first driven wheel;

the first lantern ring (22) is detachably arranged on the first belt, a second pressing plate (221) is arranged on the first belt, the second pressing plate (221) is perpendicular to the first lantern ring (22) along the longitudinal direction of the first lantern ring (22), one end of the second pressing plate (221) is provided with a second side plate (222), a second pressing motor (223) is detachably arranged on the second side plate (222), a second driving wheel is arranged at the output end of the second pressing motor (223), a second driven wheel is arranged in the second pressing plate (221), and a second belt is sleeved on the second driving wheel and the second driven wheel;

the second lantern ring (23) is detachably arranged on the second belt and is provided with a third pressing plate (24), the third pressing plate (24) is perpendicular to the second lantern ring (23) along the transverse direction of the second lantern ring (23), a third pressing motor (241) is detachably connected to the third pressing plate (24), the output end of the third pressing motor (241) is provided with a third driving wheel, a third driven wheel is arranged in the third pressing plate (24), and a third belt is sleeved on the third driving wheel and the third driven wheel; and

and the third side plate (242) is detachably arranged on the third belt, and a pinch roller (27) for pressing the liquid crystal screen is detachably arranged on the third side plate (242).

3. The three-pressing-wheel pressing mechanism for pressing three sides of a liquid crystal screen according to claim 2, wherein a pressing sliding rail (25) is detachably mounted on the third pressing plate (24), a pressing sliding block (26) is detachably arranged on the third side plate (242), the pressing sliding block (26) is slidably arranged in the pressing sliding rail (25), and the size of the pressing sliding block (26) is matched with the size of the pressing sliding rail (25).

4. A three-pinch roller press-fit mechanism for pressing three sides of a liquid crystal screen according to claim 3, wherein the centering member (3) comprises

A base plate (31) detachably mounted on the side surface of the table (1);

the centering slide block (32) is detachably arranged on the bottom surface of the base plate (31);

a centering slide rail (33) which is slidably arranged in the centering slide block (32);

the centering plate (34) is detachably arranged at one end of the centering sliding rail (33);

the electric cylinder (35) is detachably arranged on the bottom surface of the base plate (31), and the output end of the electric cylinder is detachably connected with the centering plate (34);

the centering base (36) is detachably arranged at one end of the centering plate (34) far away from the output end of the electric cylinder (35); and

and the roller (37) is rotatably arranged in the centering base (36).

5. Three-press-roller press-fit mechanism for pressing three sides of liquid crystal screen according to claim 4, characterized in that the supporting and lifting member (4) comprises

The sliding rod (41) is detachably arranged on the workbench (1), and the left end and the right end of the sliding rod are respectively connected with a left baffle (411) and a right baffle (412);

two sets of gear boxes (413) respectively connected with the left baffle plate (411) and the right baffle plate (412) and communicated with the gear boxes (413);

two groups of sliding rails (414) which are respectively and detachably connected to the left baffle (411) and the right baffle (412);

the supporting component (43) can slide up and down along the sliding rail (414), is connected with the output end of the gear box (413) and is used for supporting the liquid crystal screen, and a plurality of groups of attaching pieces for preventing the bottom surface of the liquid crystal screen from convex hulls are arranged in the supporting component; and

a stepper motor (42) connected to a set of gearboxes (413), wherein, when the output of the stepper motor (42) rotates, the output for driving the gearboxes (413) moves to raise or lower the support member (43) as a whole along the slide (414).

6. The three-pressing-wheel pressing mechanism for pressing three sides of a liquid crystal screen according to claim 5, wherein a rotating rod (415) is arranged in the gear box (413), the rotating rod (415) can penetrate and extend into the sliding rod (41), the rotating rod (415) is detachably connected with the output end of the stepping motor (42), two groups of first bevel gears (416) are respectively arranged at two ends of the rotating rod (415), two groups of second bevel gears (417) are respectively meshed with the two groups of first bevel gears (416), two groups of ball screws (418) are respectively and removably inserted into the two groups of first bevel gears (416), a shaft seat matched with the ball screws (418) is arranged on the supporting member (43), and the rotating rod (415), the first bevel gears (416), the second bevel gears (417) and the ball screws (418) jointly form the output end of the gear box (413);

when the output end of the stepping motor (42) rotates, the first bevel gear (416), the second bevel gear (417) and the ball screw (418) are driven to rotate, so that the supporting member (43) is driven to wholly ascend or descend along the sliding rail (414).

7. Three-pinch roller press mechanism for pressing three sides of liquid crystal screen according to claim 6, characterized in that the supporting member (43) comprises

A connection frame (431) that can slide up and down along the slide rail (414);

a slider (432) detachably mounted on the connection frame (431) and slidable in the slide rail (414);

a support plate (436) detachably mounted on the connection frame (431), and provided with a plurality of groups of pin holes (437) therein; and

multiple sets of laminating components, which are removably arranged in the pin holes (437).

8. The three-pressing-wheel pressing mechanism for pressing three sides of a liquid crystal screen according to claim 7, wherein the attaching member comprises

A support rod (44) removably disposed within the pin hole (437); and

the top (441) is detachably arranged on the supporting rod (44) and is matched with the supporting rod (44) in size and is used for preventing the bottom surface of the liquid crystal screen from protruding;

the bottom of the supporting rod (44) is also detachably provided with a bolt, and the size of the bolt is matched with the size of the pin hole (437), wherein when the bolt is inserted into the pin hole (437), the supporting rod (44) is contacted with the supporting plate (436).

9. The three-pressing-wheel pressing mechanism for pressing three sides of a liquid crystal screen according to claim 8, wherein a first attaching plate (433) is detachably mounted on the sliding rail (414), and the first attaching plate (433) is used for attaching the side of the liquid crystal screen.

10. The three-pressing-wheel pressing mechanism for pressing three sides of a liquid crystal screen according to claim 9, wherein a guide rail (434) is detachably mounted on the connecting frame (431), a second adhesive plate (435) is detachably mounted on the guide rail (434), the size of the second adhesive plate (435) is matched with the size of the guide rail (434), a rubber pad is detachably mounted on the second adhesive plate (435), and the size of the rubber pad is matched with the size of the second adhesive plate (435).