CN210308926U - Light guide plate hot rolling production line - Google Patents
Light guide plate hot rolling production line Download PDFInfo
- Publication number
- CN210308926U CN210308926U CN201920518147.8U CN201920518147U CN210308926U CN 210308926 U CN210308926 U CN 210308926U CN 201920518147 U CN201920518147 U CN 201920518147U CN 210308926 U CN210308926 U CN 210308926U
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- roller
- light guide
- guide plate
- production line
- hot rolling
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000005098 hot rolling Methods 0.000 title claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 38
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 22
- 238000013519 translation Methods 0.000 claims description 7
- 238000003754 machining Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a hot rolling production line of a light guide plate, which comprises an extruder, a conveying device, a rolling device and a cutting device which are sequentially butted; the rolling device comprises two groups of processing rollers; each group of processing rollers comprises two roller frames, a first roller and a second roller which are respectively and rotatably arranged on the two roller frames and are arranged up and down. The utility model provides a pair of light guide plate hot-rolling production line can solve the uneven problem of site structure processing, has improved light guide plate machining efficiency and finished product quality.
Description
Technical Field
The utility model relates to a light guide plate field, concretely relates to light guide plate hot-rolling production line.
Background
The liquid crystal backlight is a planar uniform lighting device, and cold cathode fluorescent lamps or LED lamp strips serving as light sources are arranged on two sides or one side of the whole backlight source. The cold cathode lamp tube is a linear light source, the LED is a point light source, and a light guide plate is needed for converting the light source into a surface light source. The light guide plate functions to guide a scattering direction of light, to improve the brightness of the panel, and to ensure uniformity of the brightness of the panel.
Most domestic manufacturers adopt a printed light guide plate as a light guide component, the printed light guide plate is made of a high-reflectivity and non-light-absorbing material (such as acrylic) on an acrylic flat plate, and the bottom surface of the light guide plate is printed with a screen to form a concave dot, so that the printed light guide plate has the advantages of low development cost and quick production. The point light source is arranged at the side of the light guide plate, the light emitted by the point light source is guided into the light guide plate by reflection, and when the light rays irradiate the mesh points, the reflected light can be diffused towards all angles and is emitted from the front surface of the light guide plate. The lattice points can be of square, rhombus, round, semicircular and elliptic microstructures so as to adjust the uniformity of the light source selected from the front direction; the size of the light source is from centimeter level to micron level, the smaller the mesh point is, the more careful the surface uniformity of the light source can be adjusted, and meanwhile, the damage of the mesh point pattern to the picture quality of the display can be avoided.
The existing hot rolling printing mode is a mode of rolling a light guide plate formed by an extruder side by a plurality of rollers in sequence to form a mesh point structure on the surface of the light guide plate, so that the pressure of the rollers facing the plate is uniform, the consistency of processing the mesh point structure is improved, the light guide effect of the light guide plate is improved, and the printing mode is suitable for forming a large-size light guide plate at one time. However, the stress of the light guide plate formed by the extruder is not released yet and is in an unstable state, so that the dot structure pressed by the roller is different in depth on the plate, and the optical performance and the uniformity of the plate are directly influenced. However, if shearing and rolling are performed after the temperature is reduced, the shearing force and the roll pressure tend to affect the quality of the sheet.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to the above-mentioned not enough that exists among the prior art and provide a hot roll-in production line of light guide plate, make it solve site structure processing inequality, the inconsistent problem of light guide plate quality.
In order to realize part of the above purpose, the utility model adopts the following technical scheme:
a hot rolling production line for a light guide plate comprises an extruder, a conveying device, a rolling device and a cutting device which are sequentially butted; the rolling device comprises two groups of processing rollers; each group of processing rollers comprises two roller frames, a first roller and a second roller which are respectively and rotatably arranged on the two roller frames and are arranged up and down; a first mesh point structure is arranged on a first roller of one group of processing rollers, and a second mesh point structure is arranged on a second roller of the other group of processing rollers.
Furthermore, the first dot structure and the second dot structure are respectively arranged on the two printed boards; the two printed boards are respectively arranged on the first roller or the second roller of each group of processing rollers.
Further, the conveying device is a conveying roller set; the conveying roller set comprises a plurality of conveying rollers which are arranged in parallel.
Further, distance adjusting devices for adjusting the distance between the first roller and the second roller are respectively arranged on the two roller frames; the two distance adjusting devices comprise a sliding seat, a power machine and a screw lifting mechanism; the sliding seat is connected to the roller frame in a sliding manner along the up-down direction; the first roller or the second roller in each group of processing rollers is connected to the sliding seat through a bearing; the nut seat is fixed on the roller frame; one end of the screw lifting mechanism is fixedly connected with the sliding seat, and the other end of the screw lifting mechanism is in threaded fit with the nut seat; the output shaft of the power machine is connected with the screw lifting mechanism.
Furthermore, the two roller frames comprise mounting brackets and fixing brackets with adjustable spacing; two ends of the first roller and/or the second roller of each group of processing rollers are/is rotatably arranged on the mounting bracket and the fixing bracket respectively.
Furthermore, the two roller frames comprise mounting brackets and fixing brackets with adjustable spacing; the two roller frames comprise roller bases; the fixed bracket is fixed on the roller base; the mounting bracket is arranged on the parallel sliding rails in a sliding manner towards the direction of the fixed bracket; and two ends of the first roller and/or the second roller of each group of processing rollers are respectively connected on the mounting bracket and the fixing bracket through bearings.
Further, the rolling device further comprises a base; the two roller frames are respectively installed on the base through a horizontal adjusting mechanism, so that the two roller frames can respectively and relatively slide along the axial direction of the first roller and the second roller.
Furthermore, the horizontal adjusting mechanism comprises a plurality of slideways axially parallel to the first roller wheel/the second roller wheel, a driving motor, a mounting seat fixed on the base, two adjusting screw rods and a translation seat, wherein the slideways are arranged on the base; the translation seat is fixed on the roller frame; the plurality of slideways are matched with the bottom of the roller frame in a sliding manner.
Compared with the prior art, the utility model discloses following beneficial effect has:
the raw materials of the light guide plate are heated and molded through the extruder, and after the raw materials are cooled through the conveying device, because the stress of the plate is released and is in a stable state, compared with the mode of directly rolling after discharging, the mesh point structure has consistent quality, and the optical performance and the uniformity of the light guide plate are higher; the first mesh point structure and the second mesh point structure are arranged on the first roller wheel positioned above the processing roller wheels and the second roller wheel positioned below the processing roller wheels respectively through the two groups of processing roller wheels, the mesh point structures of the upper plate surface and the lower plate surface of the light guide plate are sequentially rolled, and the other first roller wheel or the other second roller wheel which is not provided with the mesh point structure does not influence the light guide plate because the extruded mesh points are concave.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of a rolling device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a first roller frame of the present invention;
FIG. 3 is a schematic view of a second roller frame of the present invention;
fig. 4 is a schematic view of the conveying device of the present invention.
The following reference numerals are included: the device comprises a first roller 1, a second roller 2, a printed board 3, a sliding seat 4, a power machine 5, a pushing screw 6, a nut seat 7, a base 8, a roller base 9, a first mounting bracket 10, a first fixing bracket 11, a parallel sliding rail 12, a positioning screw 13, a second mounting bracket 14, a second fixing bracket 15, an upper base plate 16, a lower base plate 17, a mounting plate 18, a guide plate 19, a cart 20, a slideway 21, a driving motor 22, a mounting seat 23 and a conveying roller 24.
Detailed Description
In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:
in this embodiment, as shown in fig. 1 to 4, a hot rolling production line for light guide plates includes an extruder, a conveying device, a rolling device, and a cutting device, which are connected in a butt joint manner in sequence; the rolling device comprises two groups of processing rollers; each group of processing rollers comprises two roller frames, a first roller 1 and a second roller 2 which are respectively rotatably arranged on the two roller frames and are arranged up and down; a first mesh point structure is arranged on a first roller 1 of one group of processing rollers, and a second mesh point structure is arranged on a second roller 2 of the other group of processing rollers.
The distance between the outlet of the extruder and the conveying device is 0-3 m; the distance between the outlet of the conveying device and the rolling device is 6-14 m. Two sets of processing running rollers are connected with the rotation motor that is used for driving first running roller 1 and second running roller 2 respectively, rotate the motor and can corotation and reversal, are convenient for withdraw from panel automatically. The first roller 1 and the second roller 2 are connected with a heating device, so that the dot structure quality is more uniform. Because the extruder extrudes the light guide plate raw materials into the panel after, its internal stress is not released completely, the processing site structure depth is different this moment, the optical property and the degree of consistency of the light guide plate are low. Buffering through conveyer has improved the smoothness degree on panel shaping surface to when the roll-in, its stability is higher, makes its heat conduction efficiency and shearing resistance improve, the roll-in and the cutting of the later stage panel of being convenient for.
The two roller frames are rotationally connected with the first roller 1 and the second roller 2 through self-aligning roller bearings with the model number of GB/T288-94. The mesh point structures of the two sets of processing rollers are respectively arranged in a vertically staggered manner, so that two surfaces of the plate are sequentially rolled, the problem that the mesh point quality is influenced due to the interaction of the mesh point structures on the two sides on the punching force of the light guide plate is avoided, and the smoothness of the plane of the light guide plate is improved.
The first dot structure and the second dot structure are respectively arranged on the two printed boards 3; the two printed boards 3 are respectively arranged on the first roller 1 or the second roller 2 of each group of processing rollers.
The printed board 3 is a stainless steel plate, an optical dot structure is processed on the plane of the printed board 3, and the optical dot structure is coiled by a plate coiling machine or a coiling machine and then is installed on the first roller 1 or the second roller 2. Preferably, the first roller 1 or the second roller 2 has a smooth surface and is provided with screw holes corresponding to the printed board 3 for mounting countersunk screws thereon. The mesh point structure is processed on the plane of the printed board 3, the processing is simpler on a roller of a roller, the concave bottom of the processed mesh point structure can be smooth, and the optical performance of the light guide plate is improved. The printed board 3 is sleeved and fixed on the first roller 1 or the second roller 2, and the printed board 3 can be directly detached to replace the dot structure.
The conveying device is a conveying roller set; the transfer roller set comprises a plurality of transfer rollers 24 arranged in parallel. Preferably three transfer rollers 24 arranged in an obliquely upward sequence.
The two roller frames are respectively provided with a distance adjusting device for adjusting the distance between the first roller 1 and the second roller 2; the two distance adjusting devices comprise a sliding seat 4, a power machine 5 and a screw lifting mechanism; the sliding seat 4 is connected to the roller frame in a sliding manner along the up-down direction; the first roller 1 or the second roller 2 in each group of processing rollers is connected on the sliding seat 4 through a bearing; the nut seat 7 is fixed on the roller frame; one end of the screw lifting mechanism is fixedly connected with the sliding seat 4, and the other end of the screw lifting mechanism is in threaded fit with the nut seat 7; the output shaft of the power machine 5 is connected with the screw lifting mechanism.
The power machine 5 can be a cylinder or a motor, the screw lifting mechanism comprises a nut seat 7, a worm wheel arranged in the nut seat 7, a push screw 6 in threaded connection with a central hole of the worm wheel and a worm meshed with an outer ring of the worm wheel, and the power machine 5 is fixed on the nut seat 7 and an output shaft of the power machine is connected with the worm through a coupling. The power machine 5 controls the worm to drive the worm wheel to rotate, further drives the pushing screw 6 and the worm wheel to rotate relatively, and finally drives the sliding seat 4 on the pushing screw 6 to move up and down in the axial direction of the central hole of the worm wheel. The roller lifting mechanism is arranged on the roller frame through the nut seat 7, so that the distance adjusting devices can be conveniently assembled and disassembled on different roller frames. The roller shafts of the first roller 1 provided with the first mesh point structure and the second roller 2 provided with the second mesh point structure are respectively connected with the sliding seats 4 of the two distance adjusting devices. The roller lifting mechanism is arranged on the roller frame through the nut seat 7, so that the distance adjusting devices can be conveniently assembled and disassembled on different roller frames; the rolling distance of the two groups of processing rollers is respectively adjusted through the two distance adjusting devices, so that the plates with different specifications can be conveniently rolled.
The two roller frames respectively comprise an installation bracket and a fixed bracket with adjustable space; two ends of the first roller 1 and/or the second roller 2 of each group of processing rollers are/is rotatably arranged on the mounting bracket and the fixing bracket respectively. Through adjusting the distance of installing support and fixed bolster, adapt to the running roller installation of different length to when circuit fault, be convenient for take off the first running roller 1 in the processing/second running roller 2 and light guide plate panel, reduce the unnecessary loss.
The two roller frames comprise roller bases 9; the mounting bracket is fixed on the roller base 9; the mounting bracket is arranged on the parallel slide rail 12 in a sliding manner towards the direction of the fixed bracket; two ends of the first roller 1 and/or the second roller 2 of each group of processing rollers are respectively connected on the mounting bracket and the fixed bracket through bearings.
Specifically, the roller base 9 of the first roller frame is "u" shaped, and the mounting bracket and the fixing bracket on the first roller frame are a first mounting bracket 10 and a first fixing bracket 11 which are arranged at the two upper ends of the roller base 9 and have the same height; two ends of the second roller 2 are respectively connected on two opposite side walls of the roller base 9 through bearings. The number of the parallel slide rails 12 is two, the parallel slide rails are axially arranged at the upper end of one side wall of the roller base 9 along the second roller 2, the first mounting bracket 10 and the first fixing bracket 11 are in an Jiong shape, two ends of the bottom of the first mounting bracket 10 are respectively in sliding fit with the two slide rails, and the first fixing bracket 11 is fixed at the upper end of the other side wall of the roller frame relative to the first mounting bracket 10. The two groups of distance adjusting devices are respectively arranged on the first mounting bracket 10 and the first fixed bracket 11 in a vertically sliding manner; two ends of the first roller 1 are respectively connected with a sliding seat 4 of the distance adjusting device through bearings; the first mounting bracket 10 is fixedly connected with the roller base 9 through a positioning screw 13, and the positioning screw 13 is provided with a hand wheel. When the first roller 1 of the roller frame needs to be replaced, the first roller 1 is clamped through the lifting device, the bearings at two ends of the first roller 1 are respectively taken down, the first roller 1 is integrally moved out through the lifting device, and the first roller 1 above the roller frame is convenient to detach and transport.
The second roller frame comprises a hollow roller base 9, and the mounting bracket and the fixed bracket on the second roller frame are a second mounting bracket 14 and a second fixed bracket 15. The hollow roller base 9 comprises a lower base plate 17, support columns arranged around the lower base plate 17, and an upper base plate 16 fixed on the support columns. The second mounting bracket 14 and the second fixing bracket 15 are both in the shape of "Jiong", the second mounting bracket 14 and the second fixing bracket 15 are oppositely arranged on the upper bottom plate 16, and the height of the second mounting bracket 14 is the same as that of the second fixing bracket 15. The second mounting bracket 14 and the second fixing bracket 15 are oppositely arranged on the upper base plate 16, the mounting plates 18 are respectively arranged on the upper parts of the first mounting bracket 10 and the second fixing bracket 15, and the two mounting plates 18 are respectively connected with bearings at two ends of the first roller 1. The accommodation space of the lower part of the second mounting bracket 14 is larger than the upper part, the two opposite sides of the lower part of the second mounting bracket 14 are fixedly provided with guide plates 19, the two parallel slide rails 12 are axially arranged on the upper base plate 16 along the first roller 1, and the bottom ends of the two guide plates 19 are respectively connected with the two parallel slide rails 12 in a sliding manner. The two guide plates 19 are respectively fixed with the upper base plate 16 through the positioning screws 13, wherein the two positioning screws 13 are in transmission connection, and one positioning screw 13 is provided with a hand wheel. Because the second installing support 14 needs to install the first roller 1 and the second roller 2, the bearing is great, fixes through both sides below the second installing support 14, can strengthen the stability of second installing support 14. The second fixed mounting frame is fixed on the upper base plate 16, and two ends of the first roller 1 are respectively connected on the second mounting bracket 14 and the second fixed mounting frame through bearings. The two groups of distance adjusting devices are respectively arranged on the second mounting bracket 14 and the second fixing bracket 15 in a vertically sliding manner; two ends of the second roller 2 are respectively connected with a sliding seat 4 of the distance adjusting device through bearings. Preferably, when the second roller 2 below the roller frame is replaced, the cart 20 is placed on the upper base plate 16, the bearings at the two ends of the second roller 2 are removed, and then the second roller 2 falls into the cart 20, and the two sides of the cart 20 are clamped with the roller shaft of the second roller 2, so that the second roller 2 below the roller frame is convenient to detach and transport.
The rolling device also comprises a base 8; the two roller frames are respectively installed on the base 8 through a horizontal adjusting mechanism, so that the two roller frames can respectively and relatively slide along the axial directions of the first roller 1 and the second roller 2.
The horizontal adjusting mechanism comprises a plurality of slideways 21 which are arranged on the base 8 and are axially parallel to the first roller 1/the second roller 2, a driving motor 22, a mounting seat 23 fixed on the base 8, two adjusting screw rods and a translation seat, wherein the bearings are arranged on the mounting seat 23 and are connected to the output shaft of the driving motor 22, and the translation seat is in threaded connection with the adjusting screw rods; the translation seat is fixed on the roller frame; the plurality of slide ways 21 are matched with the bottom of the roller frame in a sliding manner. A horizontal adjusting mechanism is arranged below the two roller frames, so that the relative position of the two rolling surfaces of the light guide plate can be adjusted conveniently.
Finally, it is stated that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced with other components according to the knowledge of those skilled in the art, such as the selection of the motor, the hand wheel, the lifting device, the screw rod and the laser cutting machine, the conventional operation of the oil temperature machine and the lifting device, the polishing process and the installation of the bearing, etc., which are not repeated herein and do not depart from the spirit and scope of the technical solutions of the present invention, and the present invention should be covered in the scope of the claims of the present invention.
Claims (8)
1. A hot rolling production line of a light guide plate is characterized by comprising an extruder, a conveying device, a rolling device and a cutting device which are sequentially butted; the rolling device comprises two groups of processing rollers; each group of processing rollers comprises two roller frames, a first roller and a second roller which are respectively and rotatably arranged on the two roller frames and are arranged up and down; a first mesh point structure is arranged on a first roller of one group of processing rollers, and a second mesh point structure is arranged on a second roller of the other group of processing rollers.
2. The hot rolling production line for the light guide plate as claimed in claim 1, wherein the first dot structure and the second dot structure are respectively provided on two printed boards; the two printed boards are respectively arranged on the first roller or the second roller of each group of processing rollers.
3. The light guide plate hot rolling production line as claimed in claim 1, wherein the conveying device is a conveying roller set; the conveying roller set comprises a plurality of conveying rollers which are arranged in parallel.
4. The light guide plate hot rolling production line as claimed in claim 1, wherein the two roller frames are respectively provided with a distance adjusting device for adjusting the distance between the first roller and the second roller; the two distance adjusting devices comprise a sliding seat, a power machine and a screw lifting mechanism; the sliding seat is connected to the roller frame in a sliding manner along the up-down direction; the first roller or the second roller in each group of processing rollers is connected to the sliding seat through a bearing; a nut seat is fixed on the roller frame; one end of the screw lifting mechanism is fixedly connected with the sliding seat, and the other end of the screw lifting mechanism is in threaded fit with the nut seat; the output shaft of the power machine is connected with the screw lifting mechanism.
5. The light guide plate hot rolling production line as claimed in claim 1, wherein the two roller frames each comprise a mounting bracket and a fixing bracket with adjustable spacing; two ends of the first roller and/or the second roller of each group of processing rollers are/is rotatably arranged on the mounting bracket and the fixing bracket respectively.
6. The light guide plate hot rolling production line as claimed in claim 5, wherein the two roller frames each comprise a roller base; the fixed bracket is fixed on the roller base; the mounting bracket is arranged on the parallel sliding rails in a sliding manner towards the direction of the fixed bracket; and two ends of the first roller and/or the second roller of each group of processing rollers are respectively connected on the mounting bracket and the fixing bracket through bearings.
7. The light guide plate hot rolling production line as claimed in claim 1, wherein the rolling device further comprises a base; the two roller frames are respectively installed on the base through a horizontal adjusting mechanism, so that the two roller frames can respectively and relatively slide along the axial direction of the first roller and the second roller.
8. The light guide plate hot rolling production line as claimed in claim 7, wherein the horizontal adjusting mechanism comprises a plurality of slide ways axially parallel to the first roller/the second roller on the base, a driving motor, a mounting seat fixed on the base, two adjusting screw rods bearing-mounted on the mounting seat and connected to output shafts of the driving motor, and a translation seat screwed on the adjusting screw rods; the translation seat is fixed on the roller frame; the plurality of slideways are matched with the bottom of the roller frame in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920518147.8U CN210308926U (en) | 2019-04-17 | 2019-04-17 | Light guide plate hot rolling production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920518147.8U CN210308926U (en) | 2019-04-17 | 2019-04-17 | Light guide plate hot rolling production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210308926U true CN210308926U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920518147.8U Expired - Fee Related CN210308926U (en) | 2019-04-17 | 2019-04-17 | Light guide plate hot rolling production line |
Country Status (1)
| Country | Link |
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| CN (1) | CN210308926U (en) |
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 |
-
2019
- 2019-04-17 CN CN201920518147.8U patent/CN210308926U/en not_active Expired - Fee Related
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 |
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Granted publication date: 20200414 |