CN109927264A - A kind of light guide plate hot-rolling pressing production line and hot rolling process - Google Patents
A kind of light guide plate hot-rolling pressing production line and hot rolling process Download PDFInfo
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- CN109927264A CN109927264A CN201910306834.8A CN201910306834A CN109927264A CN 109927264 A CN109927264 A CN 109927264A CN 201910306834 A CN201910306834 A CN 201910306834A CN 109927264 A CN109927264 A CN 109927264A
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- 238000005098 hot rolling Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000003825 pressing Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 49
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
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- 238000003032 molecular docking Methods 0.000 claims abstract description 4
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- 230000007246 mechanism Effects 0.000 claims description 18
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Abstract
The present invention provides a kind of light guide plate hot-rolling pressing production line and hot rolling process, light guide plate hot-rolling pressing production line, extruder, transmission device, rolling device and cutter devices comprising successively docking setting；Rolling device includes two groups of processing rollers；Every group of processing roller includes two roller frames, is rotatably provided in the first roller and the second roller on two roller frames and being arranged above and below respectively；Wherein the first roller of one group of processing roller is equipped with the first lattice point structure, and the second roller of another group of processing roller is equipped with the second lattice point structure；The hot rolling process of light guide plate includes: (1) extrusion molding, and ensures to be cooled to 30-60 degree when plate enters rolling device；(2) plate is successively passed through to two groups of processing rollers respectively to two plate face roll-ins of plate；(3) it cuts.A kind of light guide plate hot-rolling pressing production line proposed by the present invention and hot rolling process can solve the uneven problem of lattice point structure processing, improve light guide plate processing efficiency and final product quality.
Description
Technical field
The present invention relates to light guide plate fields, and in particular to a kind of light guide plate hot-rolling pressing production line and hot rolling process.
Background technique
LCD backlight is the uniform illumination device of a plane, and the cathode fluorescent tube or LED light bar as light source are arranged
It is listed in the both sides or one side of entire backlight.Cold cathode tube is linear light source, and LED is point light source, this light source is converted to face light
Source is needed using light guide plate.The effect of light guide plate is the scattering direction of guidance light, for improving the brightness of panel, and ensures face
The uniformity of plate brightness.
Domestic manufacturers mostly use greatly the light guide plate of printing-type as leaded light component, and printing-type light guide plate is in acrylic plate
The material (such as propylene) of upper apparatus high reflectance and not extinction stamps recess site with screen printing in bottom surface of light guide plate, has
The advantage that development cost is low and production is quick.Point light source is located at light guide plate side, and the light issued imports light guide plate using reflection
Inside, when light is mapped to site, reflected light can be spread toward all angles, be projected by light guide plate front.Site can be square, water chestnut
Type, round, semi-circular, the construction of ellipse micro-structure, to adjust the uniformity that its positive direction selects light source；Its size from li
For meter level to micron order, site is smaller, the face uniformity of adjustment light source that can be more careful, while can destroy to avoid stipple pattern aobvious
Show device picture quality.
Existing hot-rolling pressure mode of printing is by extruder light guide plate plate after molding by multiple rollers successively roller side by side
It presses its surface to form the mode of lattice point structure, keeps roll surface uniform to plate pressure, improve the consistency of lattice point structure processing,
To promote light guide plate light guide effect, thus it is suitable for disposable forming large-size light-conducting plate.But extruder is after molding to lead
Tabula rasa plate, stress not yet discharge, be in an unsure state, thus roll-in go out lattice point structure onboard can the depth not
One, directly affect the optical property and the uniformity of plate.But if shearing and roll-in, shearing force and roller are carried out after its cooling
Wheel pressure is easy to have an impact the quality of plate.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of light guide plate heat for the above-mentioned deficiency in the presence of the prior art
Rolling production line and hot rolling process make it solve lattice point structure processing unevenness, the inconsistent problem of light guide plate quality.
A part to achieve the above object, present invention employs the following technical solutions:
A kind of light guide plate hot-rolling pressing production line, comprising successively docking the extruder of setting, transmission device, rolling device and cutting
Cut device；The rolling device includes two groups of processing rollers；Every group of processing roller includes two roller frames, is rotatably arranged respectively
On two roller frames and the first roller and the second roller that are arranged above and below；Wherein the first roller of one group of processing roller is equipped with
Second roller of the first lattice point structure, another group of processing roller is equipped with the second lattice point structure.
Further, the first lattice point structure and the second lattice point structure are respectively arranged in two printed boards；Described two printings
Plate is separately mounted on first roller or the second roller of every group of processing roller.
Further, the transmission device is transfer roller group；The transfer roller group include it is disposed in parallel several
Transfer roller.
Further, it is respectively provided on described two roller frames and adjusts distance between the first roller and the second roller
Roll-setting gear；Two roll-setting gears include slide, engine and screw lifting mechanism；The slide is slidable in the vertical direction company
It connects on roller frame；First roller or the second roller bearing in each group of processing roller are connected on slide；The spiral shell
Base is fixed on roller frame；Described screw lifting mechanism one end is fixedly connected with slide, and the other end is threadedly engaged with nut seat；
The power machine output shaft is connect with screw lifting mechanism.
Further, described two roller frames include adjustable berth away from mounting bracket and fixed bracket；Every group of processing
First roller of roller and/or the second roller both ends are in rotatably to be set in mounting bracket and fixed bracket respectively.
Further, described two roller frames include adjustable berth away from mounting bracket and fixed bracket；It is described two
Roller frame includes roller pedestal；The fixed bracket is fixed on roller pedestal；The mounting bracket is towards fixed holder orientation
Sliding is set on parallel sliding track；Bearing is connected to installation respectively for first roller of every group of processing roller and/or the second roller both ends
On bracket and fixed bracket.
Further, the rolling device also includes pedestal；Described two roller frames are pacified by level(l)ing mechanism respectively
Dress on the base, makes it can be respectively along the first roller and the axially opposing sliding of the second roller.
Further, the level(l)ing mechanism includes several and the first roller/second roller axial direction that pedestal is equipped with
Parallel slideway, driving motor, the mounting base being fixed on pedestal, bearing are mounted in mounting base and to be connected to driving motor defeated
Two adjusting screw rods on shaft and it is threaded in the translating base adjusted on screw rod；The translating base is fixed on roller frame
On；If the dry slide is matched with roller frame basal sliding.
Compared with the prior art, the invention has the following beneficial effects:
By extruder by guide-lighting board raw material hot briquetting, after communicated device cooling, since plate stress has discharged
In stable state, compared to directly being carried out for roll-in after discharging, lattice point structure uniform quality, the optical property of light guide plate
It is higher with the uniformity；By two groups of processing rollers respectively in the first roller being located above processing roller and under being located at processing roller
The first lattice point structure and the second site are set on second roller of side, successively to the site of light guide plate plate upper face and lower face
Structure roll-in, since the site of extrusion is inner concave shape, another the first roller for being not provided with lattice point structure of every group of processing roller or the
Two rollers do not impact light guide plate plate.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is rolling device of embodiment of the present invention schematic diagram；
Fig. 2 is first roller frame schematic diagram of the invention；
Fig. 3 is second roller frame schematic diagram of the invention；
Fig. 4 is transmission device schematic diagram of the present invention.
Include the following drawings label: the first roller 1, the second roller 2, printed board 3, slide 4, engine 5, lead-screw 6,
The fixed bracket 11 of nut seat 7, pedestal 8, roller pedestal 9, the first mounting bracket 10, first, parallel sliding track 12, positioning screw 13,
Second mounting bracket 14, second fixes bracket 15, upper plate 16, lower plate 17, mounting plate 18, guide plate 19, cart 20, slideway
21, driving motor 22, mounting base 23, transfer roller 24.
Specific embodiment
In order to make the present invention realize technological means, creation characteristic, reach purpose and effect more clearly and be apparent to,
The present invention is further elaborated with reference to the accompanying drawings and detailed description:
The present embodiment is as shown in Figure 1 to 4, light guide plate hot-rolling pressing production line, comprising successively docking the extruder of setting, passing
Send device, rolling device and cutter device；The rolling device includes two groups of processing rollers；Every group of processing roller includes two rollers
Wheel carrier, the first roller 1 and the second roller 2 for being rotatably provided on two roller frames and being arranged above and below respectively；Wherein add for one group
First roller 1 of work roller is equipped with the first lattice point structure, and the second roller 2 of another group of processing roller is tied equipped with the second site
Structure.
The outlet of extruder and transmission device distance are 0~3 meter；The transmission device outlet is at a distance from rolling device
It is 6~14 meters.Two groups of processing rollers are connected separately with the rotary electric machine for driving the first roller 1 and the second roller 2, rotation electricity
Machine can rotate and reverse, convenient for automatically exiting from plate.First roller 1 and the second roller 2 are connected with heating device, tie site
Structure quality is more evenly.Due to extruder by guide-lighting board raw material extrusion molding be plate after, internal stress does not discharge completely, this
Shi Jiagong lattice point structure is deep mixed, and the optical property and the uniformity of light guide plate are low.It is buffered by transmission device, improves plate
The smoothness of molded surface, and in roll-in, stability is higher, improves its heat transfer efficiency and anti-shearing force, after being convenient for
The roll-in and cutting of phase plate.
Two roller frames pass through model GB/T288-94 self-aligning roller bearing and 2 turns of the first roller 1 and the second roller
Dynamic connection.It is staggered up and down respectively by the lattice point structure of two groups of processing rollers, thus successively two plate faces of roll-in plate,
The problem of interacting because of stamping press of the two sides lattice point structure to light guide plate, influence net-point quality is avoided, and improves leaded light
The smoothness of plate plane.
First lattice point structure and the second lattice point structure are respectively arranged in two printed boards 3；Described two printed boards 3 are pacified respectively
On the first roller 1 or the second roller 2 of every group of processing roller.
Printed board 3 is stainless steel plate, the processing optical lattice point structure in 3 plane of printed board, through veneer reeling machine or coiling machine at
It is installed on after volume on the first roller 1 or the second roller 2.Preferably, the first roller 1 or 2 surface of the second roller are smooth, and above
Equipped with corresponding with printed board 3 for installing the screw hole of sunk screw.Lattice point structure is processed in 3 plane of printed board, relatively
The concave bottom that more simple, to process lattice point structure is processed on the roller of roller can be flat and smooth, improves leaded light
The optical property of plate plate.It is arranged and is fixed on the first roller 1 or the second roller 2 by printed board 3, can directly dismantle printing
Plate 3 is to replace lattice point structure.
The transmission device is transfer roller group；The transfer roller group includes several transfer rollers disposed in parallel
24.Three transfer rollers 24 preferably set gradually obliquely.
The roll adjustment dress for adjusting distance between the first roller 1 and the second roller 2 is respectively provided on described two roller frames
It sets；Two roll-setting gears include slide 4, engine 5 and screw lifting mechanism；The slide 4 is slidable in the vertical direction connection
On roller frame；First roller 1 or 2 bearing of the second roller in each group of processing roller are connected on slide 4；The spiral shell
Base 7 is fixed on roller frame；Described screw lifting mechanism one end is fixedly connected with slide 4, and the other end is matched with 7 screw thread of nut seat
It closes；5 output shaft of engine is connect with screw lifting mechanism.
Wherein, engine 5 can be cylinder or motor, and screw lifting mechanism includes nut seat 7, is mounted in nut seat 7
The worm gear in portion, the lead-screw 6 for being threaded in worm gear centre bore and the worm screw engaged with worm gear outer ring, engine 5 are fixed
In on nut seat 7 and its output shaft is connect by shaft coupling with worm screw.Engine 5 controls worm screw and drives worm gear rotation, and then drives
Dynamic lead-screw 6 relatively rotates with worm gear, and the final slide 4 driven on lead-screw 6 is in the axial direction of worm gear centre bore
Lower movement.Roller elevating mechanism is set on roller frame by nut seat 7, convenient for dismounting roll adjustment dress on different roller frames
It sets.The rolling axle of the first roller 1 equipped with the first lattice point structure and the second roller 2 equipped with the second lattice point structure respectively with two
4 bearing of slide of roll-setting gear connects.Roller elevating mechanism is set on roller frame by nut seat 7, convenient in differential roller
Roll-setting gear is dismounted on wheel carrier；The roll-in spacing of two groups of processing rollers is adjusted separately by two roll-setting gears, is convenient for different rule
The plate roll-in of lattice.
Described two roller frames include adjustable berth away from mounting bracket and fixed bracket；The first of every group of processing roller
Roller 1 and/or 2 both ends of the second roller are in rotatably to be set in mounting bracket and fixed bracket respectively.By adjusting installation branch
Frame and support bracket fastened distance adapt to the roller installation of different length, and when there is fault, convenient for removing in processing
1/ second roller 2 of the first roller and light guide plate plate, reduce unnecessary loss.
Described two roller frames include roller pedestal 9；The mounting bracket is fixed on roller pedestal 9；The installation
Bracket is set on parallel sliding track 12 towards fixed holder orientation sliding；The first roller 1 and/or the second roller 2 of every group of processing roller
Bearing is connected in mounting bracket and fixed bracket respectively at both ends.
Specifically, the roller pedestal 9 of first roller frame is " Kan " shape, mounting bracket and fixation on first roller frame
Bracket is set on 9 liang of upper ends of roller pedestal and identical first mounting bracket 10 of height and the first fixed bracket 11；Second roller 2
Bearing is connected in 9 two lateral walls of roller pedestal respectively at both ends.Parallel sliding track 12 is two, and is axially set along the second roller 2
In the upper end of 9 one side wall of roller pedestal, the first mounting bracket 10 and the first fixed bracket 11 are " Jiong " shape, the first mounting bracket 10
The both ends of bottom are slidably matched with two sliding rails respectively, and the first opposite first mounting bracket 10 of fixed bracket 11 is fixed on roller frame
The upper end of another side wall.Two groups of roll-setting gears are slided up and down respectively in the first mounting bracket 10 and the first fixed bracket 11；
First roller, 1 both ends are connect with 4 bearing of the slide of roll-setting gear respectively；First mounting bracket 10 passes through positioning screw 13 and roller
Pedestal 9 is fixedly connected, and positioning screw 13 is equipped with handwheel.When needing replacing the first roller 1 of roller frame, pressed from both sides by boom hoisting
It handles the first roller 1, after the bearing for removing 1 both ends of the first roller respectively, is removed by boom hoisting by the first roller 1 is whole,
Easy to disassemble and transport is located at the first roller 1 above roller frame.
Second roller frame includes hollow type roller pedestal 9, mounting bracket and fixed bracket on second roller frame
For the second mounting bracket 14 and the second fixed bracket 15.Hollow type roller pedestal 9 is surrounded by comprising lower plate 17, lower plate 17
Support column, and fixed upper plate 16 on the support columns.Second mounting bracket 14 and the second fixed bracket 15 are " Jiong "
Shape, the second mounting bracket 14 and the second fixed bracket 15 are oppositely arranged on upper plate 16, and the second mounting bracket 14 and second is solid
15 height of fixed rack is identical.Second mounting bracket 14 and the second fixed bracket 15 are opposite on upper plate 16, the first installation branch
Frame 10 and the second fixed 15 top of bracket are respectively equipped with mounting plate 18, two mounting plates 18 respectively with 1 bearings at both ends of the first roller
Connection.The accommodation space of second mounting bracket, 14 lower part is greater than top, and 14 lower part opposite sides of the second mounting bracket is fixed with
Guide plate 19, two parallel sliding tracks 12 are set on upper plate 16 along the first roller 1 is axial, and two 19 bottom ends of guide plate are respectively with two
A parallel sliding track 12 is slidably connected.Two guide plates 19 are fixed by positioning screw 13 and upper plate 16 respectively, wherein two fixed
Position screw rod 13 is sequentially connected, and a positioning screw 13 is equipped with handwheel.Since the second mounting bracket 14 needs to install 1 He of the first roller
Second roller 2, load-bearing is larger, is fixed by the two sides below the second mounting bracket 14, can reinforce the second mounting bracket
14 stability.Second fixing and mounting bracket is fixed on upper plate 16, and bearing is connected to the second installation branch respectively at the first roller 1 both ends
On frame 14 and the second fixing and mounting bracket.Two groups of roll-setting gears are slided up and down respectively set on the second mounting bracket 14 and the second fixed branch
On frame 15；Second roller, 2 both ends are connect with 4 bearing of the slide of roll-setting gear respectively.Preferably, the below replacement roller frame
When two rollers 2, cart 20 is placed on upper plate 16, the second roller 2 falls into cart after removing the bearing at 2 both ends of the second roller
In 20, the rolling axle of 20 two sides of cart and the second roller 2 is clamped, and easy to disassemble and transport is located at the second roller below roller frame
2。
The rolling device also includes pedestal 8；Described two roller frames pass through level(l)ing mechanism respectively and are mounted on pedestal 8
On, make it can be respectively along the first roller 1 and the axially opposing sliding of the second roller 2.
The level(l)ing mechanism is axial parallel comprising several and the first 1/ second roller of roller 2 that pedestal 8 is equipped with
Slideway 21, driving motor 22, the mounting base 23 being fixed on pedestal 8, bearing are mounted in mounting base 23 and are connected to driving electricity
Two adjusting screw rods on 22 output shaft of machine and it is threaded in the translating base adjusted on screw rod；The translating base is fixed on roller
On wheel carrier；If the dry slide 21 is matched with roller frame basal sliding.By being equipped with level(l)ing mechanism below two roller frames,
It is conveniently adjusted the relative position of two rolling surface of light guide plate.
The hot rolling process of light guide plate based on light guide plate hot-rolling pressing production line, (1) leaded light board raw material are extruded into through extruder
Plate temperature after type is 200-240 degree, after communicated device is cooled to 30-60 degree, into rolling device；(2) plate is successively
By roll-in between the first roller 1 and the second roller 2 of two groups of processing rollers, two groups of processing rollers are equipped with the first of micro-structure
Roller 1 and the second roller 2 form micro-structure to two plate face roll-ins of plate respectively；It (3) is blocky light guide plate by plate cutting.
Wherein, Optimal Temperature is 45 degree when light guide plate enters rolling device from transmission device.
The step (2) includes the following contents: by heating device to 1/ second roller of the first roller for being equipped with lattice point structure
2 heating of wheel, and first roller 1 of two processing roller sets and the rotary electric machine of the second roller 2 are opened, plate passes through two groups of processing
Upper face, lower face are successively processed between the first roller 1 and the second roller 2 of roller.
Light guide panel material is acrylic, and cutting equipment used in step (3) is laser cutting machine.Extruder one side ejecting plate
Rolling device carries out roll-in site on one side, plants after having pressed in the datum mark of setting automatically and is cut to several plates, improves plate
Anti-shear performance and optics net-point quality.Datum mark is set by the light guide plate of different size specification.The of two groups of roll-in rollers
The roller length of one roller 1 and the second roller 2 be 6 meters~18 meters, roller diameter be 2 meters~6 meters, oil temperature machine temperature be 50~
160 degree, the revolving speed of rotary electric machine is 0.5 meter per minute~5 meters.
Before light guide plate carries out roll-in, by extruder hot briquetting, temperature is about 220 degree at this time, communicated drop
Wen Hou, since plate stress has been discharged in stable state, compared to directly being carried out for roll-in after discharging, lattice point structure
Unanimously, the optical property with the uniformity of light guide plate are higher.Roll-in site is used for by what two groups of processing rollers were staggered above and below
The first roller 1 and the second roller 2 successively light guide plate plate upper face and lower face are processed.Then according to 1 He of the first roller
The datum mark of second roller, 2 roll-in is cut into the light guide plate of different size, then is processed by shot blasting.By form, transmit cooling,
The process of upper and lower plate face successively roll-in, cutting, keeps light guide panel material more stable and discharges stress, improve the optical property of plate with
The uniformity of lattice point structure processing.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, according to those skilled in the art
, can be with modification or equivalent replacement of the technical solution of the present invention are made known to member, such as motor, handwheel, boom hoisting, screw rod
With the selection of laser cutting machine, routine operation, polishing treatment and installation of bearing of oil temperature machine and boom hoisting etc., herein not
It must repeat, all without departing from the objective and range of technical solution of the present invention, be intended to be within the scope of the claims of the invention.
Claims (9)
1. a kind of light guide plate hot-rolling pressing production line, which is characterized in that extruder, transmission device, roller comprising successively docking setting
Pressure device and cutter device；The rolling device includes two groups of processing rollers；Every group of processing roller includes two roller frames, difference
It is rotatably provided in the first roller and the second roller on two roller frames and being arranged above and below；Wherein the first of one group of processing roller
Roller is equipped with the first lattice point structure, and the second roller of another group of processing roller is equipped with the second lattice point structure.
2. a kind of light guide plate hot-rolling pressing production line according to claim 1, which is characterized in that the first lattice point structure and second
Lattice point structure is respectively arranged in two printed boards；Described two printed boards be separately mounted to every group of processing roller the first roller or
On second roller.
3. a kind of light guide plate hot-rolling pressing production line according to claim 1, which is characterized in that the transmission device is transmission
Roller set；The transfer roller group includes several transfer rollers disposed in parallel.
4. a kind of light guide plate hot-rolling pressing production line according to claim 1, which is characterized in that divide on described two roller frames
It She You not be for adjusting the roll-setting gear of distance between the first roller and the second roller；Two roll-setting gears include slide, move
Power machine and screw lifting mechanism；The slide, which is slidable in the vertical direction, to be connected on roller frame；Institute in each group of processing roller
It states the first roller or the second roller bearing is connected on slide；The nut seat is fixed on roller frame；The screw elevator
Structure one end is fixedly connected with slide, and the other end is threadedly engaged with nut seat；The power machine output shaft and screw lifting mechanism connect
It connects.
5. a kind of light guide plate hot-rolling pressing production line according to claim 1, which is characterized in that described two roller frames wrap
Containing adjustable berth away from mounting bracket and fixed bracket；The first roller and/or the second roller both ends difference of every group of processing roller
It is set in mounting bracket and fixed bracket in rotatable.
6. a kind of light guide plate hot-rolling pressing production line according to claim 5, which is characterized in that described two roller frames wrap
Pedestal containing roller；The fixed bracket is fixed on roller pedestal；The mounting bracket is set to flat towards fixed holder orientation sliding
On row sliding rail；Bearing is connected to mounting bracket and fixation respectively for first roller of every group of processing roller and/or the second roller both ends
On bracket.
7. a kind of light guide plate hot-rolling pressing production line according to claim 1, which is characterized in that the rolling device also includes
Pedestal；Described two roller frames respectively by level(l)ing mechanism installation on the base, make it can be respectively along the first roller and the
The axially opposing sliding of two rollers.
8. a kind of light guide plate hot-rolling pressing production line according to claim 7, which is characterized in that the level(l)ing mechanism packet
Several and the first roller/second roller being equipped with containing pedestal axially parallel slideway, driving motor, the peace being fixed on pedestal
Dress seat, bearing are mounted in mounting base and two adjusting screw rods being connected in driving motor output shaft and are threaded in tune
Save the translating base on screw rod；The translating base is fixed on roller frame；If the dry slide is matched with roller frame basal sliding.
9. based on a kind of hot rolling process of light guide plate hot-rolling pressing production line described in claim 1, which is characterized in that comprising with
Lower step: (1) guide-lighting board raw material through extruder extrusion molding after is formed into plate, then the communicated device push rolls of plate is pressed
It sets, and ensures to be cooled to 30-60 degree when plate enters rolling device；(2) plate is successively passed through to the first of two groups of processing rollers
Between roller and the second roller, the first roller and the second roller for being equipped with lattice point structure by two groups of processing rollers are respectively to plate
Two plate face roll-ins of material form lattice point structure；It (3) is blocky light guide plate by the plate cutting Jing Guo roll-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306834.8A CN109927264B (en) | 2019-04-17 | 2019-04-17 | Hot rolling production line and hot rolling process for light guide plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306834.8A CN109927264B (en) | 2019-04-17 | 2019-04-17 | Hot rolling production line and hot rolling process for light guide plate |
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| Publication Number | Publication Date |
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| CN109927264A true CN109927264A (en) | 2019-06-25 |
| CN109927264B CN109927264B (en) | 2024-03-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111676641A (en) * | 2020-06-09 | 2020-09-18 | 深圳市德昌旺科技有限公司 | Abnormal point discriminating type mesh belt reinforcing mesh pressing machine and mesh pressing method thereof |
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| CN115889665B (en) * | 2023-03-14 | 2023-05-02 | 龙城明琦科技(常州)有限公司 | Automatic feeding mechanical device for hot forging |
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| CN109927264B (en) | 2024-03-15 |
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