CN114274073A - LED backlight diaphragm pressing device - Google Patents
LED backlight diaphragm pressing device Download PDFInfo
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- CN114274073A CN114274073A CN202210039555.1A CN202210039555A CN114274073A CN 114274073 A CN114274073 A CN 114274073A CN 202210039555 A CN202210039555 A CN 202210039555A CN 114274073 A CN114274073 A CN 114274073A
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- 238000003825 pressing Methods 0.000 title claims abstract description 129
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 239000012528 membrane Substances 0.000 claims abstract description 10
- 230000003139 buffering effect Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 10
- 238000007723 die pressing method Methods 0.000 description 11
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 230000001174 ascending effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention is suitable for the technical field of backlight source film pasting, and provides an LED backlight source film pressing device, which comprises: the two positioning and clamping mechanisms are respectively arranged at two ends of the supporting platform and are used for positioning and fixing the display screen to be filmed, which is placed on the supporting platform; the diaphragm hold-down mechanism, the high allied country lift piece of diaphragm hold-down mechanism on vertical side is adjusted, diaphragm hold-down mechanism includes the pressure membrane board, the pressure membrane board passes through elastic buffer spare support and sets up on the seat that goes up and down, the seat that goes up and down highly adjusts through the lift piece in vertical side. According to the invention, the effect of vertically pressing and fixing the display screen through the pressing piece can be realized by only operating the pushing unit after the positioning piece is used for positioning the display screen, and compared with the process that horizontal positioning and vertical pressing need to be respectively and independently operated, the implementation mode of the embodiment of the invention has high operation efficiency.
Description
Technical Field
The invention belongs to the technical field of backlight source film pasting, and particularly relates to an LED backlight source film pressing device.
Background
The backlight source is a light source located behind a Liquid Crystal Display (LCD), and its light emitting effect will directly affect the visual effect of a liquid crystal display module (LCM), the LCD itself does not emit light, it displays graphics or its result of modulating light, the backlight source is mainly used on the display, and film pressing is needed to better make the display project light source.
The patent document with the publication number of CN 203919935U discloses an automatic laminator for backlight sources, which comprises a die pressing block and a driving mechanism, wherein the driving mechanism is in driving connection with the die pressing block, the die pressing block is arranged into an upper die pressing block and a lower die pressing block, the upper die pressing block and the lower die pressing block are correspondingly arranged, a buffer spring is arranged between the upper die pressing block and the lower die pressing block, and two ends of the buffer spring are respectively fixedly connected with the upper die pressing block and the lower die pressing block.
Still as disclose a sticking film machine for liquid crystal display backlight is made in patent document with publication number CN 213620444U, including equipment base, equipment support frame and equipment platform, the equipment base includes the buffer that the tip set up, equipment support frame quantity is one at least and based on the vertical fixed connection of one end in equipment base upper portion, and U type sticking film equipment opposite side is provided with first pad pasting roller based on first transverse connection axle and is provided with the second pad pasting roller based on the second transverse connection axle, location servo motor and positioning screw power tooth joint.
The utility model discloses a backlight sticking film machine closing device is disclosed again in patent document with publication number CN 207579276U, its structure includes count table, electric switch, transfer wheel, transfer down the wheel, transfer out membrane length, organism, detector, tear the lamina membranacea, grabbing device, lower waste material pole, go up waste material pole, the wheel of feeding, the count table is connected with the electric switch, transfer up the wheel and be connected with transfer down the wheel, be equipped with on the organism and transfer out membrane length, the detector is connected with tearing the lamina membranacea, tear the lamina membranacea and be connected with grabbing device, grabbing device comprises motor, clutch, shaft, inductor, pick up membrane wheel, stopper, play membrane wheel group, the motor is connected with the clutch, the clutch is connected with the shaft.
In the scheme that is arranged in compressing tightly the diaphragm that provides in the above-mentioned scheme, can't fix the pad pasting to the backlight display screen of unidimensional not, can't be quick carry out effective positioning to the display screen, this just leads to protecting the diaphragm can not accurate paste on the display screen, can't guarantee compressing tightly laminating effect of diaphragm.
Disclosure of Invention
The invention aims to provide an LED backlight source diaphragm pressing device, and 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 diaphragm pressing device, comprising:
the two positioning and clamping mechanisms are respectively arranged at two ends of the supporting platform and are used for positioning and fixing the display screen to be filmed, which is placed on the supporting platform; the positioning and clamping mechanism comprises a positioning piece, a pressing piece and a pushing unit, and the positioning piece is used for positioning the display screen placed on the supporting platform in the horizontal direction; the pressing piece is used for fixing the display screen 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 up and down in the vertical direction, so that the display screen positioned by the positioning piece is fixed in the vertical direction by the pressing piece;
the diaphragm hold-down mechanism, the high allied country lift piece of diaphragm hold-down mechanism on vertical side is adjusted, diaphragm hold-down mechanism includes the pressure membrane board, the pressure membrane board passes through elastic buffer spare support and sets up on the seat that goes up and down, the seat that goes up and down highly adjusts through the lift piece in vertical side.
In an embodiment provided by the invention, the positioning element comprises a positioning block, a pushing cavity is formed in the positioning block, and the end of the pushing unit extending into the pushing cavity is in supporting connection with the positioning block through a positioning spring.
In one embodiment of the present invention, the positioning and clamping mechanism is disposed on a supporting base, and the supporting base is fixedly mounted on the supporting platform.
In one embodiment of the present invention, the pushing unit includes a screw rod rotatably disposed on the side plate of the supporting seat, and a handle is fixedly mounted at an end of the screw rod extending to the outside of the supporting seat; the pushing unit further comprises a pushing column, the end of the pushing column extends into the pushing cavity, and the end 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 column is provided with an internal thread channel, and the screw rod is screwed into the internal thread channel in a threaded connection mode, so that in the embodiment of the invention, the screw rod can be driven to rotate through the operating handle, and in the rotating process of the screw rod, as the pushing column is installed on the screw rod in a threaded connection mode, the pushing column is pushed to move according to the rotating direction of the screw rod, it can be understood that 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 pushing column which continues to move compresses the positioning spring, the positioning block is pushed to position the display screen by using the elastic support restoring force of the positioning spring, and the display screen damage caused by rigid contact pushing is avoided; and along with promoting the further removal of post, drive and compress tightly the piece and carry out synchronous operation, promote to compress tightly the piece and compress tightly fixedly display screen in vertical side.
In an embodiment of the invention, the pressing member includes a pushing and pulling member disposed on the supporting base, the pressing member further includes a pressing plate connected to the pushing and pulling member, when the pushing and pulling member is linked with the pushing and pulling member, the pushing and pulling member drives the pressing plate to move downwards by the moving pushing and pulling member, and the pressing plate moving downwards presses and fixes the display screen in the vertical direction.
In one embodiment provided by the invention, a toothed plate capable of meshing and linking with the push-pull piece is fixedly arranged on the push column;
the push-pull piece comprises a rotary disc which is rotatably arranged on the supporting seat, and the rotary disc can be meshed with the toothed plate.
In one embodiment provided by the invention, a lower pressing column is fixedly arranged on the upper side of the turntable, the pressing plate is fixedly arranged on a pressing rod, a lower pressing channel is formed in the pressing rod, and the lower pressing column is arranged by sliding through the lower pressing channel; still fixed mounting has the location foot on the supporting seat, compress tightly the pole with support through pressure spring between the location foot and be connected.
In one embodiment provided by the invention, the lifting piece is a hydraulic telescopic cylinder, the hydraulic telescopic cylinder is fixedly arranged on a supporting column, and the supporting column support is fixedly arranged on a supporting platform; the lifting seat is arranged at the telescopic end of the hydraulic telescopic cylinder.
In an embodiment provided by the invention, the elastic buffer part comprises a supporting cylinder fixedly mounted on the lifting seat, a buffer sliding block is slidably supported 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 in a supporting manner, and the buffer supporting rod is slidably connected with the supporting cylinder in a penetrating manner.
Compared with the prior art, the diaphragm pressing device provided by the embodiment of the invention has the advantages that when the pushing column 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 pushing column which continues to move compresses the positioning spring, the elastic support restoring force of the positioning spring is utilized to push the positioning block to position the display screen, and the damage to the display screen caused by rigid contact pushing is avoided; and along with promoting the further removal of 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 it moves down to drive the pressure strip, realizes compressing tightly fixed effect to the display screen in vertical direction.
In summary, the effect of vertically pressing and fixing the display screen by the pressing member after the display screen is positioned by the positioning member can be realized only by operating the pushing unit, and compared with the process that horizontal positioning and vertical pressing in the conventional technology need to be independently operated, the implementation mode of the embodiment of the invention has high operation efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a structural diagram of an LED backlight diaphragm pressing device according to the present invention;
FIG. 2 is a schematic diagram of a positioning and clamping mechanism of a pressing device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a pushing unit of the positioning and clamping mechanism according to an embodiment of the present invention;
fig. 4 is a partial perspective view of a pushing unit according to an embodiment of the present invention;
FIG. 5 is a block diagram of a compression member of an embodiment of the present invention positioned in a clamping mechanism;
fig. 6 is a partial perspective view of a compressing member according to an embodiment of the present invention;
in FIGS. 1-6: 100. a support platform; 101. a supporting seat; 102. a support leg; 200. a support pillar; 201. a hydraulic telescopic cylinder; 202. a lifting seat; 300. a film pressing plate; 400. an elastic buffer member; 401. a support cylinder; 402. a buffer slide block; 403. a buffer spring; 404. a buffer strut; 500. a positioning member; 501. positioning blocks; 502. a push chamber; 503. a positioning spring; 504. a limiting block; 600. a compression member; 601. a compression plate; 602. a hold down bar; 603. a turntable; 604. a positioning leg; 605. a compression spring; 606. pressing the channel; 607. pressing the 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
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Example 1
In one embodiment of the present disclosure, as shown in fig. 1, an LED backlight film pressing device includes:
the two 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 high allied country lift piece of diaphragm hold-down mechanism on vertical direction adjusts, diaphragm hold-down mechanism includes press mold plate 300, press mold plate 300 supports through elastomeric buffer 400 and sets up on lift seat 202, lift seat 202 is adjusted through the lift piece in the ascending height of vertical direction.
Further, as shown in fig. 1-2, in a preferred embodiment of the present invention, the positioning and clamping mechanism includes a positioning member 500, a pressing member 600 and a pushing unit 700, wherein the positioning member 500 is used for positioning a display screen placed on the supporting platform 100 in a horizontal direction; the pressing member 600 is used for fixing the display screen positioned by the positioning member 500 in the vertical direction; the pushing unit 700 is used for pushing the positioning element 500 to move along the surface of the supporting platform 100, and when the pushing unit 700 moves to be linked with the pressing element 600, the pushing unit 700 enables the pressing element 600 to move up and down in the vertical direction so as to fix the display screen positioned by the positioning element 500 in the vertical direction by using the pressing element 600, so that the use effect is good, the effect of pressing and fixing in the vertical direction by using the pressing element 600 after the display screen is positioned by using the positioning element 500 can be realized only by operating the pushing unit 700, and compared with the traditional mode, the process that horizontal positioning and pressing in the vertical direction need to be independently operated respectively, the implementation mode of the embodiment of the invention has high operation efficiency.
Example 2
In one embodiment of the present disclosure, as shown in fig. 1, an LED backlight film pressing device includes:
the two 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 high allied country lift piece of diaphragm hold-down mechanism on vertical direction adjusts, diaphragm hold-down mechanism includes press mold plate 300, press mold plate 300 supports through elastomeric buffer 400 and sets up on lift seat 202, lift seat 202 is adjusted through the lift piece in the ascending height of vertical direction.
Further, as shown in fig. 1-2, in a preferred embodiment of the present invention, the positioning and clamping mechanism includes a positioning member 500, a pressing member 600 and a pushing unit 700, wherein the positioning member 500 is used for positioning a display screen placed on the supporting platform 100 in a horizontal direction; the pressing member 600 is used for fixing the display screen positioned by the positioning member 500 in the vertical direction; the pushing unit 700 is used for pushing the positioning element 500 to move along the surface of the supporting platform 100, and when the pushing unit 700 moves to be linked with the pressing element 600, the pushing unit 700 enables the pressing element 600 to move up and down in the vertical direction so as to fix the display screen positioned by the positioning element 500 in the vertical direction by using the pressing element 600, so that the use effect is good, the effect of pressing and fixing in the vertical direction by using the pressing element 600 after the display screen is positioned by using the positioning element 500 can be realized only by operating the pushing unit 700, and compared with the traditional mode, the process that horizontal positioning and pressing in the vertical direction need to be independently operated respectively, the implementation mode of the embodiment of the invention has high operation efficiency.
Referring to fig. 1 to 4, in a preferred embodiment of the present invention, the positioning element 500 includes a positioning block 501, the positioning block 501 has a pushing cavity 502, and an end of the pushing unit 700 extending into the pushing cavity 502 is supported and connected to the positioning block 501 by a positioning spring 503.
Referring to fig. 1-2, in the 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 base 101, and a handle 702 is fixedly mounted at an end of the screw 701 extending to an outer side of the supporting base 101; the pushing unit 700 further comprises a pushing column 703, an end of the pushing column 703 extends into the pushing cavity 502, and the end of the pushing column 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 column 703 has an internal threaded passage 705, the lead screw 701 is screwed into the internal threaded passage 705 by a threaded connection, therefore, in the embodiment of the present invention, the screw rod 701 can be driven to rotate by operating the handle 702, and during the rotation process of the screw rod 701, since the pushing column 703 is installed on the screw rod 701 by a screw connection, the pushing column 703 is pushed to move according to the rotation direction of the screw rod 701, and it can be understood that, when the pushing column 703 moves toward the positioning block 501, the positioning spring 503 is compressed, and pushes the positioning block 501 to move, when the positioning block 501 abuts against the side edge of the display screen, the continuously moving pushing column 703 enables the positioning spring 503 to compress, and the elastic support restoring force of the positioning spring 503 is utilized to push the positioning block 501 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 movement of the pushing column 703, the pressing piece 600 is driven to synchronously operate, and the pressing piece 600 is pushed to press and fix the display screen in the vertical direction.
Example 3
In one embodiment of the present disclosure, as shown in fig. 1, an LED backlight film pressing device includes:
the two 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 high allied country lift piece of diaphragm hold-down mechanism on vertical direction adjusts, diaphragm hold-down mechanism includes press mold plate 300, press mold plate 300 supports through elastomeric buffer 400 and sets up on lift seat 202, lift seat 202 is adjusted through the lift piece in the ascending height of vertical direction.
Further, as shown in fig. 1-2, in a preferred embodiment of the present invention, the positioning and clamping mechanism includes a positioning member 500, a pressing member 600 and a pushing unit 700, wherein the positioning member 500 is used for positioning a display screen placed on the supporting platform 100 in a horizontal direction; the pressing member 600 is used for fixing the display screen positioned by the positioning member 500 in the vertical direction; the pushing unit 700 is used for pushing the positioning element 500 to move along the surface of the supporting platform 100, and when the pushing unit 700 moves to be linked with the pressing element 600, the pushing unit 700 enables the pressing element 600 to move up and down in the vertical direction so as to fix the display screen positioned by the positioning element 500 in the vertical direction by using the pressing element 600, so that the use effect is good, the effect of pressing and fixing in the vertical direction by using the pressing element 600 after the display screen is positioned by using the positioning element 500 can be realized only by operating the pushing unit 700, and compared with the traditional mode, the process that horizontal positioning and pressing in the vertical direction need to be independently operated respectively, the implementation mode of the embodiment of the invention has high operation efficiency.
Referring to fig. 1 to 4, in a preferred embodiment of the present invention, the positioning element 500 includes a positioning block 501, the positioning block 501 has a pushing cavity 502, and an end of the pushing unit 700 extending into the pushing cavity 502 is supported and connected to the positioning block 501 by a positioning spring 503.
Referring to fig. 1-2, in the 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 base 101, and a handle 702 is fixedly mounted at an end of the screw 701 extending to an outer side of the supporting base 101; the pushing unit 700 further comprises a pushing column 703, an end of the pushing column 703 extends into the pushing cavity 502, and the end of the pushing column 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 column 703 has an internal threaded passage 705, the lead screw 701 is screwed into the internal threaded passage 705 by a threaded connection, therefore, in the embodiment of the present invention, the screw rod 701 can be driven to rotate by operating the handle 702, and during the rotation process of the screw rod 701, since the pushing column 703 is installed on the screw rod 701 by a screw connection, the pushing column 703 is pushed to move according to the rotation direction of the screw rod 701, and it can be understood that, when the pushing column 703 moves toward the positioning block 501, the positioning spring 503 is compressed, and pushes the positioning block 501 to move, when the positioning block 501 abuts against the side edge of the display screen, the continuously moving pushing column 703 enables the positioning spring 503 to compress, and the elastic support restoring force of the positioning spring 503 is utilized to push the positioning block 501 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 movement of the pushing column 703, the pressing piece 600 is driven to synchronously operate, and the pressing piece 600 is pushed to press and fix the display screen in the vertical direction.
Referring to fig. 1 to 6, in the embodiment of the present invention, the pressing member 600 includes a pushing and pulling member disposed on the supporting base 101, the pressing member 600 further includes a pressing plate 601 connected to the pushing and pulling member, when the pushing and pulling member is linked with the pushing and pulling member 703, the pushing and pulling member drives the pressing plate 601 to move downward by the moving pushing and pulling member 703, and the downward moving pressing plate 601 vertically presses and fixes the display screen.
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 mounted on the push column 703.
As shown in fig. 4 to 6, the push-pull member provided by the embodiment of the present invention includes a rotating disc 603 rotatably disposed on the supporting seat 101, and the rotating disc 603 can be engaged with the tooth plate 704.
Further, a lower pressure column 607 is fixedly installed on the upper side of the turntable 603, the compression plate 601 is fixedly installed on the compression rod 602, a lower pressure channel 606 is formed in the compression rod 602, and the lower pressure column 607 is arranged to slide through the lower pressure channel 606; a positioning leg 604 is further fixedly mounted on the support seat 101, and the pressing rod 602 is connected with the positioning leg 604 through a pressing spring 605 in a supporting manner.
It can be understood that when the pushing column 703 moves towards the positioning block 501, the positioning spring 503 is compressed and pushes the positioning block 501 to move, when the positioning block 501 abuts against the side edge of the display screen, the pushing column 703 which continues to move compresses the positioning spring 503, and the elastic support restoring force of the positioning spring 503 is used to push the positioning block 501 to position the display screen, 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 toothed plate 704 is driven to be meshed with the turntable 603, at this time, the moving pushing column 703 can enable the turntable 603 to rotate, 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, thereby realizing the effect of pressing and fixing the display screen in the vertical direction.
Example 4
In one embodiment of the present disclosure, as shown in fig. 1, an LED backlight film pressing device includes:
the two 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 high allied country lift piece of diaphragm hold-down mechanism on vertical direction adjusts, diaphragm hold-down mechanism includes press mold plate 300, press mold plate 300 supports through elastomeric buffer 400 and sets up on lift seat 202, lift seat 202 is adjusted through the lift piece in the ascending height of vertical direction.
Further, as shown in fig. 1-2, in a preferred embodiment of the present invention, the positioning and clamping mechanism includes a positioning member 500, a pressing member 600 and a pushing unit 700, wherein the positioning member 500 is used for positioning a display screen placed on the supporting platform 100 in a horizontal direction; the pressing member 600 is used for fixing the display screen positioned by the positioning member 500 in the vertical direction; the pushing unit 700 is used for pushing the positioning element 500 to move along the surface of the supporting platform 100, and when the pushing unit 700 moves to be linked with the pressing element 600, the pushing unit 700 enables the pressing element 600 to move up and down in the vertical direction so as to fix the display screen positioned by the positioning element 500 in the vertical direction by using the pressing element 600, so that the use effect is good, the effect of pressing and fixing in the vertical direction by using the pressing element 600 after the display screen is positioned by using the positioning element 500 can be realized only by operating the pushing unit 700, and compared with the traditional mode, the process that horizontal positioning and pressing in the vertical direction need to be independently operated respectively, the implementation mode of the embodiment of the invention has high operation efficiency.
Referring to fig. 1 to 4, in a preferred embodiment of the present invention, the positioning element 500 includes a positioning block 501, the positioning block 501 has a pushing cavity 502, and an end of the pushing unit 700 extending into the pushing cavity 502 is supported and connected to the positioning block 501 by a positioning spring 503.
Referring to fig. 1-2, in the 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 base 101, and a handle 702 is fixedly mounted at an end of the screw 701 extending to an outer side of the supporting base 101; the pushing unit 700 further comprises a pushing column 703, an end of the pushing column 703 extends into the pushing cavity 502, and the end of the pushing column 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 column 703 has an internal threaded passage 705, the lead screw 701 is screwed into the internal threaded passage 705 by a threaded connection, therefore, in the embodiment of the present invention, the screw rod 701 can be driven to rotate by operating the handle 702, and during the rotation process of the screw rod 701, since the pushing column 703 is installed on the screw rod 701 by a screw connection, the pushing column 703 is pushed to move according to the rotation direction of the screw rod 701, and it can be understood that, when the pushing column 703 moves toward the positioning block 501, the positioning spring 503 is compressed, and pushes the positioning block 501 to move, when the positioning block 501 abuts against the side edge of the display screen, the continuously moving pushing column 703 enables the positioning spring 503 to compress, and the elastic support restoring force of the positioning spring 503 is utilized to push the positioning block 501 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 movement of the pushing column 703, the pressing piece 600 is driven to synchronously operate, and the pressing piece 600 is pushed to press and fix the display screen in the vertical direction.
Referring to fig. 1 to 6, in the embodiment of the present invention, the pressing member 600 includes a pushing and pulling member disposed on the supporting base 101, the pressing member 600 further includes a pressing plate 601 connected to the pushing and pulling member, when the pushing and pulling member is linked with the pushing and pulling member 703, the pushing and pulling member drives the pressing plate 601 to move downward by the moving pushing and pulling member 703, and the downward moving pressing plate 601 vertically presses and fixes the display screen.
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 mounted on the push column 703.
As shown in fig. 4 to 6, the push-pull member provided by the embodiment of the present invention includes a rotating disc 603 rotatably disposed on the supporting seat 101, and the rotating disc 603 can be engaged with the tooth plate 704.
Further, a lower pressure column 607 is fixedly installed on the upper side of the turntable 603, the compression plate 601 is fixedly installed on the compression rod 602, a lower pressure channel 606 is formed in the compression rod 602, and the lower pressure column 607 is arranged to slide through the lower pressure channel 606; a positioning leg 604 is further fixedly mounted on the support seat 101, and the pressing rod 602 is connected with the positioning leg 604 through a pressing spring 605 in a supporting manner.
It can be understood that when the pushing column 703 moves towards the positioning block 501, the positioning spring 503 is compressed and pushes the positioning block 501 to move, when the positioning block 501 abuts against the side edge of the display screen, the pushing column 703 which continues to move compresses the positioning spring 503, and the elastic support restoring force of the positioning spring 503 is used to push the positioning block 501 to position the display screen, 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 toothed plate 704 is driven to be meshed with the turntable 603, at this time, the moving pushing column 703 can enable the turntable 603 to rotate, 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, thereby realizing 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 supporting column 200, and the supporting column 200 is fixedly installed on a supporting platform 100; the lifting seat 202 is installed at the telescopic end of the hydraulic telescopic cylinder 201.
Further, in the embodiment of the present invention, the elastic buffer 400 includes a supporting cylinder 401 fixedly mounted on the lifting seat 202, a buffering slider 402 is slidably supported in the supporting cylinder 401 through a buffering spring 403, the film pressing plate 300 is fixedly supported by a buffering supporting rod 404, and the buffering supporting rod 404 is slidably connected to the supporting cylinder 401.
In the embodiment of the invention, the elastic buffer 400 is arranged, so that when the film pressing plate 300 is pushed by the hydraulic telescopic cylinder 201 to move downwards to attach the film on the display screen, a buffer effect is achieved, and the problems of incompact pressing of the film and damage and deformation of the display screen can be avoided.
Further, in the embodiment of the present invention, four corners of the bottom of the supporting platform 100 are provided with supporting legs 102.
Further, a limit block 504 is disposed on the positioning block 501, and the limit block 504 is used for limiting a displacement stroke of the positioning block 501.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a LED backlight diaphragm closing device which characterized in that includes:
the two positioning and clamping mechanisms are respectively arranged at two ends of the supporting platform and are used for positioning and fixing the display screen to be filmed, which is placed on the supporting platform; the positioning and clamping mechanism comprises a positioning piece, a pressing piece and a pushing unit, and the positioning piece is used for positioning the display screen placed on the supporting platform in the horizontal direction; the pressing piece is used for fixing the display screen 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 up and down in the vertical direction, so that the display screen positioned by the positioning piece is fixed in the vertical direction by the pressing piece;
the diaphragm hold-down mechanism, the high allied country lift piece of diaphragm hold-down mechanism on vertical side is adjusted, diaphragm hold-down mechanism includes the pressure membrane board, the pressure membrane board passes through elastic buffer spare support and sets up on the seat that goes up and down, the seat that goes up and down highly adjusts through the lift piece in vertical side.
2. The LED backlight source diaphragm pressing device according to claim 1, wherein the positioning element comprises a positioning block, the positioning block is provided with a pushing cavity, and an end of a pushing unit extending into the pushing cavity is in supporting connection with the positioning block through a positioning spring.
3. The LED backlight film pressing device according to claim 2, wherein the positioning and clamping mechanism is disposed on a supporting base, and the supporting base is fixedly mounted on the supporting platform.
4. The LED backlight diaphragm pressing device according to claim 3, wherein the pushing unit comprises a screw rod rotatably disposed on the side plate of the supporting seat, and a handle is fixedly mounted at an end of the screw rod extending to the outside of the supporting seat; the pushing unit further comprises a pushing column, the end of the pushing column extends into the pushing cavity, and the end of the pushing column is in supporting connection with the positioning block through a positioning spring.
5. The LED backlight diaphragm pressing device according to claim 4, wherein the pushing column has an internal threaded channel, and the screw rod is screwed into the internal threaded channel by a threaded connection.
6. The LED backlight source film pressing device according to claim 5, wherein the pressing member comprises a pushing and pulling member disposed on the supporting base, the pressing member further comprises a pressing plate connected to the pushing and pulling member, when the pushing and pulling member is linked with the pushing and pulling member, the pushing and pulling member drives the pressing plate to move downwards, and the downward moving pressing plate presses and fixes the display screen in the vertical direction.
7. The LED backlight source film pressing device according to claim 6, wherein a toothed plate capable of meshing and linking with the push-pull piece is fixedly mounted on the pushing column; the push-pull piece comprises a rotary disc which is rotatably arranged on the supporting seat, and the rotary disc can be meshed with the toothed plate.
8. The LED backlight source diaphragm pressing device according to claim 7, wherein a lower pressing column is fixedly mounted on an upper side of the turntable, the pressing plate is fixedly mounted on a pressing rod, a lower pressing channel is formed in the pressing rod, and the lower pressing column is arranged to slide through the lower pressing channel; still fixed mounting has the location foot on the supporting seat, compress tightly the pole with support through pressure spring between the location foot and be connected.
9. The LED backlight source diaphragm pressing device according to any one of claims 5 to 8, 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.
10. The pressing device for the LED backlight diaphragm of claim 9, wherein the elastic buffer member comprises a supporting cylinder fixedly mounted on the lifting seat, a buffering slider is slidably supported in the supporting cylinder through a buffering spring, the film pressing plate is fixedly connected with the buffering slider through a buffering supporting rod, and the buffering supporting rod is slidably connected with the supporting cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| CN114274073A true CN114274073A (en) | 2022-04-05 |
| CN114274073B CN114274073B (en) | 2024-03-19 |
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| CN202210039555.1A Active CN114274073B (en) | 2022-01-13 | 2022-01-13 | LED backlight diaphragm closing device |
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Cited By (1)
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| CN115902323A (en) * | 2023-02-28 | 2023-04-04 | 南京捷希科技有限公司 | Plate pressing device, single plate test fixture and plate pressing method |
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| CN114274073B (en) | 2024-03-19 |
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