CN114274073B - LED backlight diaphragm closing device - Google Patents
LED backlight diaphragm closing device Download PDFInfo
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- CN114274073B CN114274073B CN202210039555.1A CN202210039555A CN114274073B CN 114274073 B CN114274073 B CN 114274073B CN 202210039555 A CN202210039555 A CN 202210039555A CN 114274073 B CN114274073 B CN 114274073B
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- 238000003825 pressing Methods 0.000 claims abstract description 143
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The invention is applicable to the technical field of backlight source film pasting, and provides an LED backlight source film pressing device, which comprises: the positioning clamping mechanisms are respectively arranged at two ends of the supporting platform and are used for positioning and fixing the display screen to be laminated placed on the supporting platform; the diaphragm pressing mechanism is characterized in that the height of the diaphragm pressing mechanism in the vertical direction is adjusted through a lifting piece, the diaphragm pressing mechanism comprises a diaphragm pressing plate, the diaphragm pressing plate is supported and arranged on a lifting seat through an elastic buffer piece, and the height of the lifting seat in the vertical direction is adjusted through the lifting piece. According to the invention, the effect of compressing and fixing in the vertical direction through the compressing piece after the display screen is positioned by using the positioning piece can be realized by only operating the pushing unit, and the implementation mode of the embodiment of the invention has high operation efficiency compared with the process that horizontal positioning and vertical compressing are required to be operated independently.
Description
Technical Field
The invention belongs to the technical field of backlight source film sticking, and particularly relates to an LED backlight source film pressing device.
Background
A backlight is a light source located behind a Liquid Crystal Display (LCD), whose lighting effect directly affects the visual effect of a liquid crystal display module (LCM), which itself does not emit light, and which displays graphics or its result of light modulation, and is mainly used on a display, and which requires film lamination for better enabling the display to project the light source.
The utility model discloses a backlight source automatic film sticking machine closing device as disclosed in the patent document of publication number CN 203919935U, including mould briquetting and actuating mechanism, actuating mechanism with the mould briquetting drive is connected, the mould briquetting sets up to mould briquetting and lower mould briquetting, go up mould briquetting and lower mould briquetting and correspond the setting, go up mould briquetting with be provided with buffer spring between the mould briquetting down, buffer spring's both ends respectively in go up mould briquetting with lower mould briquetting fixed connection.
As another example, a film sticking machine for manufacturing a backlight source of a liquid crystal display screen is disclosed in a patent document with publication number CN 213620444U, and the film sticking machine comprises a device base, a device support frame and a device platform, wherein the device base comprises a buffer arranged at the end part, the number of the device support frames is at least one and is fixedly connected to the upper surface part of the device base based on one end, the opposite sides of the U-shaped film sticking device are provided with a first film sticking roller based on a first transverse connecting shaft and a second film sticking roller based on a second transverse connecting shaft, and a positioning servo motor is in power tooth joint with a positioning screw.
The utility model discloses a backlight sticking film machine closing device in order to disclose in the patent document of publication number CN 207579276U again, its structure includes counter, electric switch, transfers the upper wheel, transfers the lower wheel, transfers out membrane length, organism, detector, tear film board, grabbing device, lower waste material pole, goes up waste material pole, charging wheel, the counter is connected with electric switch, transfer the upper wheel and transfer the lower wheel and be connected, be equipped with on the organism and transfer out membrane length, the detector is connected with tear film board, tear film board is connected with grabbing device, grabbing device comprises motor, clutch, pole axle, inductor, pick up membrane wheel, stopper, play membrane wheel, the motor is connected with the clutch, the clutch is connected with the pole axle.
Among the scheme that is arranged in compressing tightly to the diaphragm that provides among the above-mentioned scheme, can't fix the pad pasting to not unidimensional backlight display screen, can't be quick carry out effective location to the display screen, this just leads to the protection diaphragm can not be accurate paste on the display screen, can't guarantee the laminating effect that compresses tightly of diaphragm.
Disclosure of Invention
The invention aims to provide an LED backlight source diaphragm pressing device which aims to solve the technical problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions.
An LED backlight film compression device, the compression device comprising:
the positioning clamping mechanisms are respectively arranged at two ends of the supporting platform and are used for positioning and fixing the display screen to be laminated placed on the supporting platform; the positioning and clamping mechanism comprises a positioning piece, a pressing piece and a pushing unit, wherein the positioning piece is used for positioning a display screen placed on the supporting platform in the horizontal direction; the compressing piece is used for fixing the display screen which is positioned by the positioning piece in the vertical direction; the pushing unit is used for pushing the positioning piece to move along the surface of the supporting platform, and when the pushing unit moves to be linked with the pressing piece, the pushing unit enables the pressing piece to move downwards in the vertical direction so as to fix the display screen positioned by the positioning piece in the vertical direction by using the pressing piece;
the diaphragm pressing mechanism is characterized in that the height of the diaphragm pressing mechanism in the vertical direction is adjusted through a lifting piece, the diaphragm pressing mechanism comprises a diaphragm pressing plate, the diaphragm pressing plate is supported and arranged on a lifting seat through an elastic buffer piece, and the height of the lifting seat in the vertical direction is adjusted through the lifting piece.
In one embodiment of the invention, the positioning piece comprises a positioning block, wherein a pushing cavity is formed in the positioning block, and the end part of the pushing unit extending into the pushing cavity is connected with the positioning block through a positioning spring in a supporting manner.
In one embodiment of the present invention, the positioning and clamping mechanism is disposed on a support base, and the support base is fixedly mounted on a support platform.
In one embodiment of the invention, the pushing unit comprises a screw rod rotatably arranged on the side plate of the supporting seat, and a handle is fixedly arranged at the end part of the screw rod extending to the outer side of the supporting seat; the pushing unit further comprises a pushing column, the end part of the pushing column stretches into the pushing cavity, and the end part of the pushing column is in supporting connection with the positioning block through a positioning spring.
In one embodiment provided by the invention, the pushing post is provided with the internal thread channel, the screw rod is screwed into the internal thread channel in a threaded connection mode, so in the embodiment of the invention, the screw rod can be driven to rotate through the operating handle, and in the process of rotating the screw rod, the pushing post is driven to move according to the rotation direction of the screw rod because the pushing post is arranged on the screw rod in a threaded connection mode, and it can be understood that when the pushing post moves towards the positioning block, the positioning spring is compressed and the positioning block is pushed to move, when the positioning block abuts against the side edge of the display screen, the positioning spring is compressed by the pushing post which continuously moves, and the positioning block is pushed to position the display screen by utilizing the elastic supporting restoring force of the positioning spring, so that the display screen damage caused by rigid contact pushing is avoided; and along with the further movement of the pushing column, the compressing piece is driven to synchronously operate, and the compressing piece is pushed to compress and fix the display screen in the vertical direction.
In one embodiment of the invention, the pressing piece comprises a push-pull piece arranged on the supporting seat, and the pressing piece further comprises a pressing plate connected with the push-pull piece, and when the push-pull piece and the pushing column are linked, the moving pushing column enables the push-pull piece to drive the pressing plate to move downwards, and the downwards moving pressing plate performs pressing fixation on the display screen in the vertical direction.
In one embodiment provided by the invention, the toothed plate capable of being meshed and linked with the push-pull piece is fixedly arranged on the push column;
the push-pull piece comprises a rotary table rotatably arranged on the supporting seat, and the rotary table can be meshed with the toothed plate.
In one embodiment provided by the invention, a pressing column is fixedly arranged on the upper side of the turntable, the pressing plate is fixedly arranged on a pressing rod, a pressing channel is formed in the pressing rod, and the pressing column is arranged in a sliding manner through the pressing channel; the support seat is also fixedly provided with a positioning pin, and the compression rod is in supporting connection with the positioning pin through a compression spring.
In one embodiment provided by the invention, the lifting piece is a hydraulic telescopic cylinder which is fixedly arranged on a supporting column, and the supporting column is fixedly arranged on a supporting platform; the lifting seat is arranged at the telescopic end of the hydraulic telescopic cylinder.
In one embodiment provided by the invention, the elastic buffer piece comprises a supporting cylinder fixedly arranged on the lifting seat, a buffer sliding block is arranged in the supporting cylinder in a sliding manner through a buffer spring support, the film pressing plate is fixedly connected with the buffer sliding block through a buffer supporting rod support, and the buffer supporting rod is connected with the supporting cylinder in a penetrating sliding manner.
Compared with the prior art, when the pushing column moves towards the positioning block, the positioning spring is compressed and pushes the positioning block to move, when the positioning block abuts against the side edge of the display screen, the continuously moving pushing column compresses the positioning spring, and the elastic supporting restoring force of the positioning spring is used for pushing the positioning block to position the display screen, so that the display screen is prevented from being damaged due to rigid contact pushing; and along with the further removal of promotion post, drive meshing between pinion rack and the carousel, at this moment, the promotion post of removal can make the carousel rotatory, and rotatory carousel promotes to compress tightly the pole and moves in vertical direction to drive the clamp plate and move down, realize compressing tightly fixed effect to the display screen in vertical direction.
In summary, the effect of compressing and fixing the display screen in the vertical direction through the compressing member can be achieved by only operating the pushing unit, and compared with the process that horizontal positioning and vertical compressing in the prior art need to be operated independently, the implementation mode of the embodiment of the invention has high operation efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a block diagram of an LED backlight diaphragm pressing device of the present invention;
FIG. 2 is a block diagram of a positioning and clamping mechanism in a compression device according to an embodiment of the present invention;
FIG. 3 is a block diagram of a pushing unit in a positioning and clamping mechanism according to an embodiment of the present invention;
fig. 4 is a schematic partial perspective view of a pushing unit according to an embodiment of the present invention;
FIG. 5 is a block diagram of a hold-down member in a positioning and clamping mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic partial perspective view of a compression member according to an embodiment of the present invention;
in fig. 1-6: 100. a support platform; 101. a support base; 102. a support leg; 200. a support column; 201. a hydraulic telescopic cylinder; 202. a lifting seat; 300. film pressing plates; 400. an elastic buffer member; 401. a support cylinder; 402. a buffer slider; 403. a buffer spring; 404. a buffer strut; 500. a positioning piece; 501. a positioning block; 502. a pushing cavity; 503. a positioning spring; 504. a limiting block; 600. a pressing member; 601. a compacting plate; 602. a pressing rod; 603. a turntable; 604. positioning feet; 605. a compression spring; 606. a pressing down channel; 607. pressing down a column; 700. a pushing unit; 701. a screw rod; 702. a handle; 703. pushing the column; 704. a toothed plate; 705. an internally threaded passage.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. Specific implementations of the invention are described in detail below in connection with specific embodiments.
Example 1
As shown in fig. 1, in one embodiment provided by the present invention, an apparatus for compressing a film of an LED backlight, the apparatus includes:
the positioning and clamping mechanisms are respectively arranged at two ends of the supporting platform 100 and are used for positioning and fixing the display screen to be pasted on the supporting platform 100;
the diaphragm pressing mechanism, the diaphragm pressing mechanism is high in vertical direction to be adjusted through the lifter, the diaphragm pressing mechanism includes the press plate 300, the press plate 300 supports through elastic buffer 400 and sets up on the lift seat 202, the height of lift seat 202 in vertical direction is adjusted through the lifter.
Further, as shown in fig. 1-2, in the preferred embodiment provided by the present invention, the positioning and clamping mechanism includes a positioning member 500, a pressing member 600 and a pushing unit 700, where the positioning member 500 is used for positioning a display screen placed on the support platform 100 in a horizontal direction; the pressing piece 600 is used for fixing the display screen positioned by the positioning piece 500 in the vertical direction; the pushing unit 700 is configured to push the positioning member 500 to move along the surface of the support platform 100, and when the pushing unit 700 moves to be linked with the pressing member 600, the pushing unit 700 moves the pressing member 600 downward in a vertical direction, so that the display screen positioned by the positioning member 500 is fixed in the vertical direction by using the pressing member 600, so that the use effect is good, and the effect of pressing and fixing the display screen in the vertical direction by using the pressing member 600 after positioning the display screen by using the positioning member 500 can be achieved only by operating the pushing unit 700.
Example 2
As shown in fig. 1, in one embodiment provided by the present invention, an apparatus for compressing a film of an LED backlight, the apparatus includes:
the positioning and clamping mechanisms are respectively arranged at two ends of the supporting platform 100 and are used for positioning and fixing the display screen to be pasted on the supporting platform 100;
the diaphragm pressing mechanism, the diaphragm pressing mechanism is high in vertical direction to be adjusted through the lifter, the diaphragm pressing mechanism includes the press plate 300, the press plate 300 supports through elastic buffer 400 and sets up on the lift seat 202, the height of lift seat 202 in vertical direction is adjusted through the lifter.
Further, as shown in fig. 1-2, in the preferred embodiment provided by the present invention, the positioning and clamping mechanism includes a positioning member 500, a pressing member 600 and a pushing unit 700, where the positioning member 500 is used for positioning a display screen placed on the support platform 100 in a horizontal direction; the pressing piece 600 is used for fixing the display screen positioned by the positioning piece 500 in the vertical direction; the pushing unit 700 is configured to push the positioning member 500 to move along the surface of the support platform 100, and when the pushing unit 700 moves to be linked with the pressing member 600, the pushing unit 700 moves the pressing member 600 downward in a vertical direction, so that the display screen positioned by the positioning member 500 is fixed in the vertical direction by using the pressing member 600, so that the use effect is good, and the effect of pressing and fixing the display screen in the vertical direction by using the pressing member 600 after positioning the display screen by using the positioning member 500 can be achieved only by operating the pushing unit 700.
With continued reference to fig. 1-4, in a preferred embodiment of the present invention, the positioning member 500 includes a positioning block 501, the positioning block 501 has a pushing cavity 502, and an end portion of the pushing unit 700 extending into the pushing cavity 502 is supportingly connected to the positioning block 501 through a positioning spring 503.
With continued reference to fig. 1-2, in an embodiment of the present invention, the positioning and clamping mechanism is disposed on a supporting base 101, and the supporting base 101 is fixedly mounted on a supporting platform 100.
As shown in fig. 2 to 4, in the embodiment of the present invention, the pushing unit 700 includes a screw 701 rotatably disposed on a side plate of the supporting seat 101, and a handle 702 is fixedly installed at an end of the screw 701 extending to the outside of the supporting seat 101; the pushing unit 700 further comprises a pushing post 703, wherein an end of the pushing post 703 extends into the pushing cavity 502, and the end of the pushing post 703 is in supporting connection with the positioning block 501 through a positioning spring 503.
Further, in the embodiment of the present invention, the pushing post 703 is provided with an internal thread channel 705, and the screw rod 701 is screwed into the internal thread channel 705 through a threaded connection manner, so in the embodiment of the present invention, the screw rod 701 can be driven to rotate by operating the handle 702, and in the process of rotating the screw rod 701, since the pushing post 703 is installed on the screw rod 701 in a threaded connection manner, the pushing post 703 is pushed to move according to the rotation direction of the screw rod 701, it can be understood that when the pushing post 703 moves towards the positioning block 501, the positioning spring 503 is compressed, and the positioning block 501 is pushed to move, and when the positioning block 501 abuts against the side edge of the display screen, the continuously moving pushing post 703 compresses the positioning spring 503, and the positioning block 501 is pushed to position the display screen by using the elastic supporting restoring force of the positioning spring 503, so as to avoid the damage of the display screen caused by rigid contact pushing; and with the further movement of the pushing column 703, the pressing member 600 is driven to perform synchronous operation, so as to push the pressing member 600 to press and fix the display screen in the vertical direction.
Example 3
As shown in fig. 1, in one embodiment provided by the present invention, an apparatus for compressing a film of an LED backlight, the apparatus includes:
the positioning and clamping mechanisms are respectively arranged at two ends of the supporting platform 100 and are used for positioning and fixing the display screen to be pasted on the supporting platform 100;
the diaphragm pressing mechanism, the diaphragm pressing mechanism is high in vertical direction to be adjusted through the lifter, the diaphragm pressing mechanism includes the press plate 300, the press plate 300 supports through elastic buffer 400 and sets up on the lift seat 202, the height of lift seat 202 in vertical direction is adjusted through the lifter.
Further, as shown in fig. 1-2, in the preferred embodiment provided by the present invention, the positioning and clamping mechanism includes a positioning member 500, a pressing member 600 and a pushing unit 700, where the positioning member 500 is used for positioning a display screen placed on the support platform 100 in a horizontal direction; the pressing piece 600 is used for fixing the display screen positioned by the positioning piece 500 in the vertical direction; the pushing unit 700 is configured to push the positioning member 500 to move along the surface of the support platform 100, and when the pushing unit 700 moves to be linked with the pressing member 600, the pushing unit 700 moves the pressing member 600 downward in a vertical direction, so that the display screen positioned by the positioning member 500 is fixed in the vertical direction by using the pressing member 600, so that the use effect is good, and the effect of pressing and fixing the display screen in the vertical direction by using the pressing member 600 after positioning the display screen by using the positioning member 500 can be achieved only by operating the pushing unit 700.
With continued reference to fig. 1-4, in a preferred embodiment of the present invention, the positioning member 500 includes a positioning block 501, the positioning block 501 has a pushing cavity 502, and an end portion of the pushing unit 700 extending into the pushing cavity 502 is supportingly connected to the positioning block 501 through a positioning spring 503.
With continued reference to fig. 1-2, in an embodiment of the present invention, the positioning and clamping mechanism is disposed on a supporting base 101, and the supporting base 101 is fixedly mounted on a supporting platform 100.
As shown in fig. 2 to 4, in the embodiment of the present invention, the pushing unit 700 includes a screw 701 rotatably disposed on a side plate of the supporting seat 101, and a handle 702 is fixedly installed at an end of the screw 701 extending to the outside of the supporting seat 101; the pushing unit 700 further comprises a pushing post 703, wherein an end of the pushing post 703 extends into the pushing cavity 502, and the end of the pushing post 703 is in supporting connection with the positioning block 501 through a positioning spring 503.
Further, in the embodiment of the present invention, the pushing post 703 is provided with an internal thread channel 705, and the screw rod 701 is screwed into the internal thread channel 705 through a threaded connection manner, so in the embodiment of the present invention, the screw rod 701 can be driven to rotate by operating the handle 702, and in the process of rotating the screw rod 701, since the pushing post 703 is installed on the screw rod 701 in a threaded connection manner, the pushing post 703 is pushed to move according to the rotation direction of the screw rod 701, it can be understood that when the pushing post 703 moves towards the positioning block 501, the positioning spring 503 is compressed, and the positioning block 501 is pushed to move, and when the positioning block 501 abuts against the side edge of the display screen, the continuously moving pushing post 703 compresses the positioning spring 503, and the positioning block 501 is pushed to position the display screen by using the elastic supporting restoring force of the positioning spring 503, so as to avoid the damage of the display screen caused by rigid contact pushing; and with the further movement of the pushing column 703, the pressing member 600 is driven to perform synchronous operation, so as to push the pressing member 600 to press and fix the display screen in the vertical direction.
With continued reference to fig. 1 to 6, in the embodiment of the present invention, the pressing member 600 includes a push-pull member disposed on the supporting base 101, the pressing member 600 further includes a pressing plate 601 connected to the push-pull member, and when the push-pull member and the pushing post 703 are linked, the moving pushing post 703 makes the push-pull member drive the pressing plate 601 to move downward, and the pressing plate 601 that moves downward performs pressing fixation on the display screen in the vertical direction.
Further, as shown in fig. 2 and 4, in the embodiment of the present invention, a toothed plate 704 capable of meshing and interlocking with the push-pull member is fixedly installed on the push post 703.
As shown in fig. 4 to 6, the push-pull member provided in the embodiment of the present invention includes a turntable 603 rotatably disposed on the supporting seat 101, where the turntable 603 can be meshed with the toothed plate 704.
Further, a pressing post 607 is fixedly mounted on the upper side of the turntable 603, the pressing plate 601 is fixedly mounted on the pressing rod 602, a pressing channel 606 is formed on the pressing rod 602, and the pressing post 607 is arranged in a sliding manner through the pressing channel 606; the supporting seat 101 is also fixedly provided with a positioning pin 604, and the pressing rod 602 is in supporting connection with the positioning pin 604 through a pressing spring 605.
It can be understood that when the pushing post 703 moves towards the positioning block 501, the positioning spring 503 is compressed, and the positioning block 501 is pushed to move, when the positioning block 501 abuts against the side of the display screen, the pushing post 703 that continues to move compresses the positioning spring 503, and the elastic supporting restoring force of the positioning spring 503 is used to push the positioning block 501 to position the display screen, so as to avoid damage to the display screen caused by rigid contact pushing; along with the further movement of the pushing column 703, the toothed plate 704 is driven to mesh with the turntable 603, at this time, the moving pushing column 703 can rotate the turntable 603, and the rotating turntable 603 pushes the pressing rod 602 to move in the vertical direction, so as to drive the pressing plate 601 to move downwards, and achieve the effect of pressing and fixing the display screen in the vertical direction.
Example 4
As shown in fig. 1, in one embodiment provided by the present invention, an apparatus for compressing a film of an LED backlight, the apparatus includes:
the positioning and clamping mechanisms are respectively arranged at two ends of the supporting platform 100 and are used for positioning and fixing the display screen to be pasted on the supporting platform 100;
the diaphragm pressing mechanism, the diaphragm pressing mechanism is high in vertical direction to be adjusted through the lifter, the diaphragm pressing mechanism includes the press plate 300, the press plate 300 supports through elastic buffer 400 and sets up on the lift seat 202, the height of lift seat 202 in vertical direction is adjusted through the lifter.
Further, as shown in fig. 1-2, in the preferred embodiment provided by the present invention, the positioning and clamping mechanism includes a positioning member 500, a pressing member 600 and a pushing unit 700, where the positioning member 500 is used for positioning a display screen placed on the support platform 100 in a horizontal direction; the pressing piece 600 is used for fixing the display screen positioned by the positioning piece 500 in the vertical direction; the pushing unit 700 is configured to push the positioning member 500 to move along the surface of the support platform 100, and when the pushing unit 700 moves to be linked with the pressing member 600, the pushing unit 700 moves the pressing member 600 downward in a vertical direction, so that the display screen positioned by the positioning member 500 is fixed in the vertical direction by using the pressing member 600, so that the use effect is good, and the effect of pressing and fixing the display screen in the vertical direction by using the pressing member 600 after positioning the display screen by using the positioning member 500 can be achieved only by operating the pushing unit 700.
With continued reference to fig. 1-4, in a preferred embodiment of the present invention, the positioning member 500 includes a positioning block 501, the positioning block 501 has a pushing cavity 502, and an end portion of the pushing unit 700 extending into the pushing cavity 502 is supportingly connected to the positioning block 501 through a positioning spring 503.
With continued reference to fig. 1-2, in an embodiment of the present invention, the positioning and clamping mechanism is disposed on a supporting base 101, and the supporting base 101 is fixedly mounted on a supporting platform 100.
As shown in fig. 2 to 4, in the embodiment of the present invention, the pushing unit 700 includes a screw 701 rotatably disposed on a side plate of the supporting seat 101, and a handle 702 is fixedly installed at an end of the screw 701 extending to the outside of the supporting seat 101; the pushing unit 700 further comprises a pushing post 703, wherein an end of the pushing post 703 extends into the pushing cavity 502, and the end of the pushing post 703 is in supporting connection with the positioning block 501 through a positioning spring 503.
Further, in the embodiment of the present invention, the pushing post 703 is provided with an internal thread channel 705, and the screw rod 701 is screwed into the internal thread channel 705 through a threaded connection manner, so in the embodiment of the present invention, the screw rod 701 can be driven to rotate by operating the handle 702, and in the process of rotating the screw rod 701, since the pushing post 703 is installed on the screw rod 701 in a threaded connection manner, the pushing post 703 is pushed to move according to the rotation direction of the screw rod 701, it can be understood that when the pushing post 703 moves towards the positioning block 501, the positioning spring 503 is compressed, and the positioning block 501 is pushed to move, and when the positioning block 501 abuts against the side edge of the display screen, the continuously moving pushing post 703 compresses the positioning spring 503, and the positioning block 501 is pushed to position the display screen by using the elastic supporting restoring force of the positioning spring 503, so as to avoid the damage of the display screen caused by rigid contact pushing; and with the further movement of the pushing column 703, the pressing member 600 is driven to perform synchronous operation, so as to push the pressing member 600 to press and fix the display screen in the vertical direction.
With continued reference to fig. 1 to 6, in the embodiment of the present invention, the pressing member 600 includes a push-pull member disposed on the supporting base 101, the pressing member 600 further includes a pressing plate 601 connected to the push-pull member, and when the push-pull member and the pushing post 703 are linked, the moving pushing post 703 makes the push-pull member drive the pressing plate 601 to move downward, and the pressing plate 601 that moves downward performs pressing fixation on the display screen in the vertical direction.
Further, as shown in fig. 2 and 4, in the embodiment of the present invention, a toothed plate 704 capable of meshing and interlocking with the push-pull member is fixedly installed on the push post 703.
As shown in fig. 4 to 6, the push-pull member provided in the embodiment of the present invention includes a turntable 603 rotatably disposed on the supporting seat 101, where the turntable 603 can be meshed with the toothed plate 704.
Further, a pressing post 607 is fixedly mounted on the upper side of the turntable 603, the pressing plate 601 is fixedly mounted on the pressing rod 602, a pressing channel 606 is formed on the pressing rod 602, and the pressing post 607 is arranged in a sliding manner through the pressing channel 606; the supporting seat 101 is also fixedly provided with a positioning pin 604, and the pressing rod 602 is in supporting connection with the positioning pin 604 through a pressing spring 605.
It can be understood that when the pushing post 703 moves towards the positioning block 501, the positioning spring 503 is compressed, and the positioning block 501 is pushed to move, when the positioning block 501 abuts against the side of the display screen, the pushing post 703 that continues to move compresses the positioning spring 503, and the elastic supporting restoring force of the positioning spring 503 is used to push the positioning block 501 to position the display screen, so as to avoid damage to the display screen caused by rigid contact pushing; along with the further movement of the pushing column 703, the toothed plate 704 is driven to mesh with the turntable 603, at this time, the moving pushing column 703 can rotate the turntable 603, and the rotating turntable 603 pushes the pressing rod 602 to move in the vertical direction, so as to drive the pressing plate 601 to move downwards, and achieve the effect of pressing and fixing the display screen in the vertical direction.
As shown in fig. 1, in the embodiment of the present invention, the lifting member is a hydraulic telescopic cylinder 201, the hydraulic telescopic cylinder 201 is fixedly installed on a support column 200, and the support column 200 is fixedly installed on the support platform 100 in a supporting manner; the lifting seat 202 is mounted at the telescopic end of the hydraulic telescopic cylinder 201.
Further, in the embodiment of the present invention, the elastic buffer member 400 includes a supporting cylinder 401 fixedly mounted on the lifting seat 202, a buffer slider 402 is slidably disposed in the supporting cylinder 401 through a buffer spring 403, the film pressing plate 300 is fixedly connected to the buffer slider 402 through a buffer supporting rod 404, and the buffer supporting rod 404 is connected to the supporting cylinder 401 in a penetrating and sliding manner.
In the embodiment of the invention, the elastic buffer 400 is arranged, so that when the hydraulic telescopic cylinder 201 is used for pushing the film pressing plate 300 to move downwards to attach the films on the display screen, the buffer effect is achieved, and the problems of incomplete film pressing and damage deformation of the display screen can be avoided.
Further, in the embodiment of the present invention, the four corners of the bottom of the supporting platform 100 are provided with legs 102.
Further, a limiting block 504 is disposed on the positioning block 501, and the limiting block 504 is used for limiting the displacement stroke of the positioning block 501.
Although embodiments of the invention have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (3)
1. An LED backlight film pressing apparatus, comprising:
the positioning clamping mechanisms are respectively arranged at two ends of the supporting platform and are used for positioning and fixing the display screen to be laminated placed on the supporting platform; the positioning and clamping mechanism comprises a positioning piece, a pressing piece and a pushing unit, wherein the positioning piece is used for positioning a display screen placed on the supporting platform in the horizontal direction; the compressing piece is used for fixing the display screen which is positioned by the positioning piece in the vertical direction; the pushing unit is used for pushing the positioning piece to move along the surface of the supporting platform, and when the pushing unit moves to be linked with the pressing piece, the pushing unit enables the pressing piece to move downwards in the vertical direction so as to fix the display screen positioned by the positioning piece in the vertical direction by using the pressing piece;
the height of the diaphragm pressing mechanism in the vertical direction is adjusted through the lifting piece, the diaphragm pressing mechanism comprises a diaphragm pressing plate, the diaphragm pressing plate is supported and arranged on the lifting seat through the elastic buffer piece, and the height of the lifting seat in the vertical direction is adjusted through the lifting piece;
the positioning piece comprises a positioning block, a pushing cavity is formed in the positioning block, and the end part of the pushing unit extending into the pushing cavity is in supporting connection with the positioning block through a positioning spring;
the positioning and clamping mechanism is arranged on the supporting seat, and the supporting seat is fixedly arranged on the supporting platform;
the pushing unit comprises a screw rod rotatably arranged on the side plate of the supporting seat, and a handle is fixedly arranged at the end part of the screw rod extending to the outer side of the supporting seat; the pushing unit further comprises a pushing column, the end part of the pushing column extends into the pushing cavity, and the end part of the pushing column is in supporting connection with the positioning block through a positioning spring;
the pushing column is provided with an internal thread channel, and the screw rod is screwed into the internal thread channel in a threaded connection mode;
the pressing piece comprises a push-pull piece arranged on the supporting seat, and also comprises a pressing plate connected with the push-pull piece, when the push-pull piece is linked with the pushing column, the pushing column moves to drive the push-pull piece to move downwards, and the downwards moving pressing plate presses and fixes the display screen in the vertical direction;
the pushing column is fixedly provided with a toothed plate which can be meshed and linked with the push-pull piece; the push-pull piece comprises a rotary table rotatably arranged on the supporting seat, and the rotary table can be meshed with the toothed plate;
the upper side of the turntable is fixedly provided with a pressing column, the pressing plate is fixedly arranged on a pressing rod, the pressing rod is provided with a pressing channel, and the pressing column is arranged in a sliding manner through the pressing channel; the support seat is also fixedly provided with a positioning pin, and the compression rod is in supporting connection with the positioning pin through a compression spring.
2. The LED backlight source diaphragm pressing device of claim 1, wherein the lifting member is a hydraulic telescopic cylinder, the hydraulic telescopic cylinder is fixedly mounted on a support column, and the support column is fixedly mounted on a support platform; the lifting seat is arranged at the telescopic end of the hydraulic telescopic cylinder.
3. The device of claim 2, wherein the elastic buffer member comprises a supporting cylinder fixedly mounted on the lifting seat, a buffer sliding block is slidably arranged in the supporting cylinder through a buffer spring, the film pressing plate is fixedly connected with the buffer sliding block through a buffer supporting rod, and the buffer supporting rod is in penetrating sliding connection with the supporting cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210039555.1A CN114274073B (en) | 2022-01-13 | 2022-01-13 | LED backlight diaphragm closing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210039555.1A CN114274073B (en) | 2022-01-13 | 2022-01-13 | LED backlight diaphragm closing device |
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| Publication Number | Publication Date |
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| CN114274073A CN114274073A (en) | 2022-04-05 |
| CN114274073B true CN114274073B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210039555.1A Active CN114274073B (en) | 2022-01-13 | 2022-01-13 | LED backlight diaphragm closing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115902323B (en) * | 2023-02-28 | 2023-06-09 | 南京捷希科技有限公司 | Board pressing device, single board testing clamp and board pressing method |
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| CN114274073A (en) | 2022-04-05 |
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