CN105666771A - Hot rolling method of light guide plate - Google Patents
Hot rolling method of light guide plate Download PDFInfo
- Publication number
- CN105666771A CN105666771A CN201610130505.9A CN201610130505A CN105666771A CN 105666771 A CN105666771 A CN 105666771A CN 201610130505 A CN201610130505 A CN 201610130505A CN 105666771 A CN105666771 A CN 105666771A
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- CN
- China
- Prior art keywords
- light guiding
- guiding plate
- pressure roller
- hot rolling
- light guide
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/44—Compression means for making articles of indefinite length
- B29C43/46—Rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
- B29C2043/3405—Feeding the material to the mould or the compression means using carrying means
- B29C2043/3416—Feeding the material to the mould or the compression means using carrying means conveyor belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Planar Illumination Modules (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention relates to a hot rolling method of a light guide plate. The method comprises steps that a heat conduction medium is heated through a heater and is guided into pressing rollers of a hot rolling device so as to enable the pressing rollers to be heated; the light guide plate is conveyed to the hot rolling device through a conveying belt, and before the light guide plate is conveyed to the hot rolling device, the light guide plate is fixed through a clamp from the bottom of the light guide plate, and then the light guide plate is conveyed to the hot rolling device; the two oppositely-arranged pressing rollers of the hot rolling device carry out hot rolling on the surface of the light guide plate; and a pressure value of the surfaces of the pressing rollers is obtained, and according to the pressure value of the surfaces of the pressing rollers, the distance between the two pressing rollers is adjusted in real time, and therefore the pressure on the surface of the light guide plate is adjusted. According to the hot rolling method, the surface temperature distribution of the pressing rollers is more uniform, pressing on the surface of the light guide plate is more balanced, the number of bad points on the surface of the light guide plate is effectively reduced, bending generated in the hot rolling process of the light guide plate is effectively avoided, and the product yield is greatly improved.
Description
Technical field
The present invention relates to light guiding plate processing technique field, particularly relate to the hot roll-in method of light guiding plate.
Background technology
Light guiding plate is the acrylic/PC sheet material of a kind of optical grade, there is pole high-reflectivity and do not inhale the feature of light, it is widely used on LCD and LED display, it utilizes optical grade acrylic sheet material to draw the light sent from lamp, and when light is mapped to each light guiding points, reflected light can toward all angles diffusion, then penetrate by light guiding plate front, by various density, light guiding points not of uniform size, light guiding plate uniformly light-emitting can be made, it is achieved line source is converted to area source.
The machine-shaping mode of existing light guiding plate mainly comprises press out type and injection type, and the principle of injection type is that optical grade PMMA (polymethylmethacrylate) particle is used high temperature, high pressure to inject cooling forming in mould by emission forming machine. In general, the light guide plate of injection type is 0.45mm, and thickness is bigger, it is easy to produce burr, it is easy to producing shaping irregular situation, cause Stress non-homogeneity, snappiness is poor, easily loses during bending, and briliancy is low, and product yield is low.
Another kind of processing mode press out type be adopt hot roll-in mode by acrylic material press-in die, the light guide plate of press out type is thinner, snappiness is better, briliancy height, but owing to current hot-pressing roller adopts the mode of electric heating to heat, easily make sheeting roll surface temperature uneven, and due to the position of pressure roller be fixing, light guiding plate pressure in pressurized process keeps fixing, pressure cannot regulate according to the shape of light guiding plate, light guide plate surface is then easily made to form bad point, on the other hand, owing to light guiding plate is that the side guide wheel by both sides is fixed and sent in pressure roller, cause light guiding plate when roll-in before and after unbalance stress easily there is warped, light guide plate surface is finally made to be formed bending, shape unfairness, make product fraction defective higher.
Summary of the invention
Based on this, it is necessary that the light guide plate surface produced for existing press out type mode easily forms bad point, there is warped, the defect causing the fraction defective of product higher, a kind of hot roll-in method of light guiding plate is provided, effectively reduce the bad point of light guide plate surface, and it is bending effectively to avoid light guiding plate to produce, and greatly improves product yield.
A hot roll-in method for light guiding plate, comprises the following steps:
By well heater to the heating of heat conduction media, and heat conduction media are imported in the pressure roller of hot rolling device so that pressure roller is heated;
By travelling belt, light guiding plate is sent to described hot rolling device, and, before described light guiding plate is sent to hot rolling device, also by the bottom of light guiding plate, light guiding plate is fixed by fixture, then send into described hot rolling device;
By two pressure rollers being oppositely arranged of described hot rolling device, light guide plate surface is carried out hot roll-in;
Obtain the force value of described roller surface, according to the force value of described roller surface, regulate the spacing between two described pressure rollers to adjust the pressure to light guide plate surface in real time.
In an embodiment, described fixture tilts to send between two described pressure rollers by light guiding plate, and light guiding plate is inclined upwardly between feeding two described pressure rollers to the one end near described pressure roller gradually by the one end away from described pressure roller.
In an embodiment, described light guiding plate is fixed bottom described light guiding plate by described fixture by adsorbing.
In an embodiment, described well heater is electric heater.
In an embodiment, described heat conduction media are heat-transfer oil.
In an embodiment, having offered some passage of heats in described pressure roller, described heat-transfer oil circulates in the described passage of heat.
In an embodiment, the described passage of heat is to arrange in the annular axis along described pressure roller.
In an embodiment, the surfaceness of described pressure roller is less than 0.5Ra.
In an embodiment, the Flatness on the surface of described pressure roller is less than 0.5 μm.
In an embodiment, described pressure roller is connected with bearing, and is cooled by described bearing by water-cooling pattern.
The hot roll-in method of above-mentioned light guiding plate, thermal conduction is carried out by heat conduction media, make the surface temperature distribution of pressure roller more even, and the pressure according to roller surface controls the spacing between two pressure rollers in real time so that light guide plate surface is more balanced by pressure, effectively reduces the bad point of light guide plate surface, on the other hand, owing to being subject to the support of fixture bottom it when light guiding plate sends into pressure roller, effectively avoid light guiding plate to produce to bend in hot-pressing roller process, greatly improve product yield.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the hot roll-in method of the light guiding plate of one embodiment of the invention.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully. Accompanying drawing gives the better embodiment of the present invention. But, the present invention can realize in many different forms, is not limited to embodiment described herein. On the contrary, it is provided that the object of these embodiments makes the understanding of the disclosure to the present invention more comprehensively thorough.
Such as, as shown in Figure 1, the hot roll-in method of the light guiding plate of a preferred embodiment of the present invention, comprises the following steps:
Heat conduction media by well heater to the heating of heat conduction media, and are imported in the pressure roller of hot rolling device so that pressure roller is heated by step S101.
In this step, adopt heater heats, and by heat conduction media by heat conduction to pressure roller, so that pressure roller is heated more even, like this, the temperature distribution of roller surface is more even, like this, light guide plate surface through hot roll-in is heated more even, it is possible to effectively avoid light guide plate surface to produce bad point.
Such as, described well heater is electric heater, described electric heater has the high advantage of heating efficiency, and and for example, described well heater is heating installation machine, such as, described heat conduction media are heat-transfer oil, and such as, described heating installation machine is by steam-heated cal(l)andria, and by steam, heat is passed to heat-transfer oil, such as, described heat-transfer oil is hot kerosene, and hot kerosene has homogeneous heating, temperature adjustment control temperature is accurately, producing high temperature under low-steam pressure, heat-transfer effect is good, energy-conservation, conveying and the feature such as easy to operate, it is possible to well by heat conduction to described pressure roller; Such as, having offered some passage of heats in described pressure roller, described heat-transfer oil circulates in the described passage of heat, like this, after described heat-transfer oil is heated, flow through the passage of heat in described pressure roller, it is possible to efficiently heat is driven to pressure roller, make pressure roller heating and make the rise in temperature on its surface, in order to make heat can more be transferred uniformly into described pressure roller, such as, the described passage of heat is to arrange in the annular axis along described pressure roller, such as, described pressure roller arranges the passage of heat of multiple annular; And for example, the described passage of heat is arranged to the edge of described pressure roller in the shape of a spiral by the center of circle of described pressure roller. In order to obtain better evenly heats, such as, the described passage of heat is double-spiral structure, and double-spiral structure exists some intersection positions being interconnected. And for example, in described double-spiral structure, each helical tube body has flat cross section, and such as, flat cross section is semicircle, arch or crescent. Like this, heat can be passed to pressure roller by heat-transfer oil at many levels, improves heat transfer efficiency on the one hand, makes the temperature distribution of described pressure roller more even on the other hand, makes the hot pressing effect of described light guiding plate better further.
In order to improve heat-transfer oil further to the heat transfer efficiencies of described pressure roller, such as, being equidistantly provided with some capillary channels along the described passage of heat, described capillary channel makes heat-transfer oil can infiltrate in described pressure roller more fully, it is to increase heat transfer efficiencies.It is worth mentioning that, although capillary channel can effectively improve the heat transfer efficiencies of heat-transfer oil, but make described pressure roller internal structure become unstable, in order to avoid making pressure roller internal structure unstable, such as, described capillary channel is arranged in semicircle, such as, described capillary channel becomes loop to arrange with the described passage of heat, the diameter of described capillary channel is set to 1.5mm～2mm, such as, the diameter of described capillary channel is set to 1.8mm, like this, owing to described capillary channel length is shorter, and be connected with the described passage of heat with semicircle loop, therefore the impact on pressure roller internal structure is reduced, in addition, owing to the diameter of capillary channel is less, the impact on pressure roller internal structure can be reduced further, like this, the circulation efficiency of the passage of heat of heat-transfer oil in pressure roller and capillary channel can be improved on the one hand, improve heat transfer efficiencies, also make described roller structure more firm on the other hand.
It should be understood that, the hot roll-in temperature of light guiding plate should maintain in constant interval, as temperature is too high, light guiding plate may will be damaged, as temperature is too low, then hot pressing effect is not good, in order to make hot pressing effect better, reduce energy consumption, such as, described hot rolling device also comprises temperature detector, described temperature detector is arranged at described roller surface, for detecting the temperature of described roller surface, such as, also comprise oil pump, described oil pump is for driving the circulation of described heat-transfer oil in described pressure roller and circulation, such as, described temperature detector is electrically connected with described oil pump, described temperature detector is for detecting described sheeting roll surface temperature, and have more described sheeting roll surface temperature and control described operation of oil pump, such as, described temperature detector is used for when described sheeting roll surface temperature is greater than preset temperature value, control described oil pump and reduce power, the circulation of the circulation speed reducing the heat-transfer oil in described pressure roller or the heat-transfer oil reduced in described pressure roller, when described sheeting roll surface temperature is less than preset temperature value, control described oil pump and increase power, the circulation of the circulation speed improving the heat-transfer oil in described pressure roller or the heat-transfer oil increased in described pressure roller, like this, by controlling the circulation speed of heat-transfer oil in described pressure roller and circulation thus realize the temperature to roller surface and regulate, there is the effect of efficient adjustment. it should be understood that, can also by controlling the thermal power of described well heater and realize the temperature to heat-transfer oil to control, thus realize the temperature to described roller surface and control, but owing to the temperature of well heater is that indirect transfer is to described roller surface, therefore temperature control exists sluggish, cause temperature regulation effect not good, therefore, the present invention can regulate directly, rapidly the temperature of described roller surface by the circulation speed of heat-transfer oil that controls in described pressure roller and circulation so that temperature regulation effect is better.
Step S102, is sent to described hot rolling device by travelling belt by light guiding plate, and, before described light guiding plate is sent to hot rolling device, also by the bottom of light guiding plate, light guiding plate is fixed by fixture, then send into described hot rolling device.
Due to before entering hot rolling device at light guiding plate and when entering hot rolling device, the part that light guiding plate exposes to hot rolling device is supported by described fixture, like this, light guiding plate can be effectively avoided to produce in hot-pressing roller process bending, such as, described light guiding plate is fixed bottom described light guiding plate by described fixture by adsorbing, such as, described chucking surface is set to smooth-flat-surface, described chucking surface is offered by some pores, such as, the pore of described fixture is connected vacuum generator, like this, light guiding plate is steadily adsorbed in the surface of described fixture by described fixture by the vacuum action of pore, on the one hand, the bottom of light guiding plate can effectively be supported by described fixture, on the other hand, the reactive force of absorption makes light guiding plate can be close to described fixture downwards, like this, the part exposing to hot rolling device due to light guiding plate can fully be fixed on fixture, in the hot roll-in process of light guiding plate, the part generation warped leaked outside can effectively avoiding light guiding plate, and finally effectively prevent the bend of light conducting plate after hot roll-in, make hot pressing effect better.In addition, owing to light guiding plate is only fixed in bottom, its both sides do not limit, like this, in light guiding plate roll-in process, it is possible to the position of fine setting light guiding plate, when light guiding plate misplaces, position and the angle of light guiding plate can be corrected in time, avoid light guiding plate to produce bad point further.
In order to make hot pressing effect better, prevent light guiding plate from producing warped further, such as, described fixture tilts to send between two described pressure rollers by light guiding plate, light guiding plate is inclined upwardly between feeding two described pressure rollers by the one end away from described pressure roller to the one end near described pressure roller gradually, such as, when described light guiding plate sends into hot rolling device, it is lower away from the height of one end of described hot rolling device, like this, when its other end is pressed, one end away from described hot rolling device can not tilt under gravity, such as, the angle that light guiding plate is 15 ° to 20 ° with level tilts to enter between two described pressure rollers, such as, the angle that light guiding plate is 18 ° with level tilts to enter between two described pressure rollers. it should be understood that, described hot rolling device is put into if light guiding plate is level, under the rolling effect of two pressure rollers, light guiding plate afterbody easily tilts by power because of front end, and in the present invention, it is tilt to send between two described pressure rollers due to light guiding plate, like this, it is possible to the tilting angle of light guiding plate afterbody is reduced, and due to fixture to the absorption of light guiding plate and support, make light guiding plate can keep smooth, thus effectively avoid light guiding plate produce warped and bend.
Step S103, carries out hot roll-in by two pressure rollers being oppositely arranged of described hot rolling device to light guide plate surface.
In order to improve hot pressing effect further, avoiding light guide plate surface to produce bad point, such as, the surfaceness of described pressure roller is less than 0.5Ra. Such as, the Flatness on the surface of described pressure roller is less than 0.5 μm, and and for example, the Flatness on the surface of described pressure roller is less than 0.3 μm; Owing to roller surface roughness is very little, and very level and smooth, smooth, therefore can avoid when light guiding plate is carried out hot roll-in light guide plate surface is caused damage, avoid light guide plate surface that bad point occurs.
It should be understood that, described pressure roller is rotate to realize roll-in at work, it is connected with driving mechanism, described pressure roller rotates under the driving of described driving mechanism, and due to the temperature of pressure roller higher, its heat can easily pass through metal parts and be passed to driving mechanism, the easy like this rise in temperature making driving mechanism, the work of driving mechanism is impacted, and the working efficiency making driving mechanism reduces, working life reduces, such as, described pressure roller is connected with bearing, such as, described pressure roller is connected with driving mechanism by bearing, by water-cooled, described bearing is cooled, such as, by injection, water coolant is injected on bearing, it should be understood that, owing to pressure roller is constantly rotation, if therefore the flow velocity of water coolant is slower, the heat of bearing cannot fully be taken away by water coolant, and in the present invention, water coolant is ejected on bearing, water coolant is ejected on bearing at a relatively high speed, fast the heat of bearing can be taken away, like this, owing to the temperature of bearing obtains rapid reduction, the heat of described pressure roller cannot be passed to driving mechanism by described bearing, avoid the work to driving mechanism to impact, extend the working life of driving mechanism.
Step S104, detection obtains the force value of described roller surface, regulates the spacing between two described pressure rollers to adjust the pressure to light guide plate surface in real time by the force value of described roller surface.
Such as, two described pressure rollers are connected to servomotor, described servomotor is for driving two described pressure roller vertical motions, with the spacing adjusted between two described pressure rollers, such as, described roller surface is also provided with pressure sensitive device, described pressure sensitive device is connected with servomotor, it should be understood that, the effect of power is relative, the pressure of described roller surface equals the pressure suffered by one side corresponding to light guiding plate, therefore, the present invention detecting, the force value of described roller surface is the pressure of light guide plate surface, such as, described pressure roller comprises the upper pressure roller and lower compression roller that are oppositely arranged, the force value that force value is with light guiding plate upper surface is subject to of the upper roller surface that described pressure transmitter gets, the force value that force value is with light guiding plate lower surface is subject on the lower compression roller surface that described pressure transmitter gets.
Such as, when the force value of described roller surface is greater than the first pressure preset, control two the opposing motions of described pressure roller of described driven by servomotor, so that the spacing of two described pressure rollers increases, thus reduce the pressure of described light guide plate surface; When the force value of described roller surface is less than the 2nd pressure preset, control the described pressure roller move toward one another of described driven by servomotor two, so that the spacing of two described pressure rollers reduces, thus increase the pressure of described light guide plate surface, like this, by detecting the force value of described roller surface thus realize the adjustment of the pressure to the hot roll-in of light guiding plate so that the hot pressing effect of light guiding plate is better.
Step S105, completes the hot roll-in to light guiding plate.
By the hot roll-in method of the light guiding plate of the present invention, the surface temperature distribution of pressure roller can be made more even, and the pressure according to roller surface controls the spacing between two pressure rollers in real time, light guide plate surface is made to be subject to pressure more balanced, effectively reduce the bad point of light guide plate surface, on the other hand, owing to being subject to the support of fixture bottom it when light guiding plate sends into pressure roller, effectively avoid light guiding plate to produce in hot-pressing roller process bending, greatly improve product yield.
Each technology feature of the above embodiment can combine arbitrarily, for making description succinct, each all possible combination of technology feature in above-described embodiment is not all described, but, as long as the combination of these technology features does not exist contradiction, all it is considered to be the scope that this specification sheets is recorded.
The above embodiment only have expressed several enforcement modes of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent. , it is also possible to make some distortion and improvement, it should be appreciated that for the person of ordinary skill of the art, without departing from the inventive concept of the premise these all belong to protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the hot roll-in method of a light guiding plate, it is characterised in that, comprise the following steps:
By well heater to the heating of heat conduction media, and heat conduction media are imported in the pressure roller of hot rolling device so that pressure roller is heated;
By travelling belt, light guiding plate is sent to described hot rolling device, and, before described light guiding plate is sent to hot rolling device, also by the bottom of light guiding plate, light guiding plate is fixed by fixture, then send into described hot rolling device;
By two pressure rollers being oppositely arranged of described hot rolling device, light guide plate surface is carried out hot roll-in;
Obtain the force value of described roller surface, according to the force value of described roller surface, regulate the spacing between two described pressure rollers to adjust the pressure to light guide plate surface in real time.
2. the hot roll-in method of light guiding plate according to claim 1, it is characterized in that, described fixture tilts to send between two described pressure rollers by light guiding plate, and light guiding plate is inclined upwardly between feeding two described pressure rollers to the one end near described pressure roller gradually by the one end away from described pressure roller.
3. the hot roll-in method of light guiding plate according to claim 1, it is characterised in that, described light guiding plate is fixed bottom described light guiding plate by described fixture by adsorbing.
4. the hot roll-in method of light guiding plate according to claim 1, it is characterised in that, described well heater is electric heater.
5. the hot roll-in method of light guiding plate according to claim 1, it is characterised in that, described heat conduction media are heat-transfer oil.
6. the hot roll-in method of light guiding plate according to claim 1, it is characterised in that, offer some passage of heats in described pressure roller, described heat-transfer oil circulates in the described passage of heat.
7. the hot roll-in method of light guiding plate according to claim 6, it is characterised in that, the described passage of heat is to arrange in the annular axis along described pressure roller.
8. the hot roll-in method of light guiding plate according to claim 1, it is characterised in that, the surfaceness of described pressure roller is less than 0.5Ra.
9. the hot roll-in method of light guiding plate according to claim 1, it is characterised in that, the Flatness on the surface of described pressure roller is less than 0.5 μm.
10. the hot roll-in method of light guiding plate according to claim 1, it is characterised in that, described pressure roller is connected with bearing, and is cooled by described bearing by water-cooling pattern.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610130505.9A CN105666771B (en) | 2016-03-08 | 2016-03-08 | The hot rolling methods of light guide plate |
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| CN201610130505.9A CN105666771B (en) | 2016-03-08 | 2016-03-08 | The hot rolling methods of light guide plate |
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| CN105666771A true CN105666771A (en) | 2016-06-15 |
| CN105666771B CN105666771B (en) | 2018-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927264A (en) * | 2019-04-17 | 2019-06-25 | 王莉 | A kind of light guide plate hot-rolling pressing production line and hot rolling process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020015865A (en) * | 2000-08-23 | 2002-03-02 | 양근창 | Apparatus and method for manufacturing light guide plate for plane light source unit |
| JP2003291211A (en) * | 2002-04-01 | 2003-10-14 | Kazuo Kobayashi | Embossing apparatus and its product |
| US20060071363A1 (en) * | 2003-01-07 | 2006-04-06 | Mitsubishi Rayon Co., Ltd | Belt type continuous plate manufacturing device and method of manufacturing sheet polymer |
| CN102205639A (en) * | 2011-03-03 | 2011-10-05 | 北京化工大学 | Method for polymer extruding and micro embossing shaping |
| CN103029299A (en) * | 2013-01-08 | 2013-04-10 | 石狮市新力元反光材料有限公司 | Hot-pressing type production equipment and production method of optical sheets |
-
2016
- 2016-03-08 CN CN201610130505.9A patent/CN105666771B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020015865A (en) * | 2000-08-23 | 2002-03-02 | 양근창 | Apparatus and method for manufacturing light guide plate for plane light source unit |
| JP2003291211A (en) * | 2002-04-01 | 2003-10-14 | Kazuo Kobayashi | Embossing apparatus and its product |
| US20060071363A1 (en) * | 2003-01-07 | 2006-04-06 | Mitsubishi Rayon Co., Ltd | Belt type continuous plate manufacturing device and method of manufacturing sheet polymer |
| CN102205639A (en) * | 2011-03-03 | 2011-10-05 | 北京化工大学 | Method for polymer extruding and micro embossing shaping |
| CN103029299A (en) * | 2013-01-08 | 2013-04-10 | 石狮市新力元反光材料有限公司 | Hot-pressing type production equipment and production method of optical sheets |
Non-Patent Citations (1)
| Title |
|---|
| 刘文龙: "聚合物挤出热压印成型工艺", 《塑料》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927264A (en) * | 2019-04-17 | 2019-06-25 | 王莉 | A kind of light guide plate hot-rolling pressing production line and hot rolling process |
| CN109927264B (en) * | 2019-04-17 | 2024-03-15 | 王莉 | Hot rolling production line and hot rolling process for light guide plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105666771B (en) | 2018-08-03 |
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