CN102131625A - Method of manufacturing light guide plate and light guide plate - Google Patents
Method of manufacturing light guide plate and light guide plate Download PDFInfo
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- CN102131625A CN102131625A CN200980133197.3A CN200980133197A CN102131625A CN 102131625 A CN102131625 A CN 102131625A CN 200980133197 A CN200980133197 A CN 200980133197A CN 102131625 A CN102131625 A CN 102131625A
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- sheet material
- injection moulding
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 238000001746 injection moulding Methods 0.000 claims abstract description 50
- 238000005520 cutting process Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 89
- 238000012545 processing Methods 0.000 claims description 46
- 239000011888 foil Substances 0.000 claims description 29
- 230000033228 biological regulation Effects 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000010008 shearing Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 abstract 7
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 24
- 230000015572 biosynthetic process Effects 0.000 description 15
- 239000002826 coolant Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00663—Production of light guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
- B32B37/22—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of both discrete and continuous layers
- B32B37/223—One or more of the layers being plastic
- B32B37/226—Laminating sheets, panels or inserts between two continuous plastic layers
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C2045/0079—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping applying a coating or covering
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0084—General arrangement or lay-out of plants
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/42—Removing or ejecting moulded articles using means movable from outside the mould between mould parts, e.g. robots
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A method of manufacturing a light guide plate capable of enhancing productivity by automating conventional manual operations is provided. A transparent plate (B) is formed using a cavity formed by the fixed die (10) and the movable die (8) of an injection molding machine (1). The plate (B) attached to the inside of the cavity is discharged, and sucked and removed by a removal device (3). The removed plate (B) is placed on a first protective sheet (20) let out from a first sheet roll (22) after being placed on the upper surface of the first protective sheet (20) at a predetermined loading position (b) by the removal device (3). A second protective sheet (21) let out from a second sheet roll (23) is placed on the upper surface of the conveyed plate (B). After the first protective sheet (20) and the second protective sheet (21) are pasted on the respective surfaces of the plate (B), the plate (B) on which the first protective sheet (20) and the second protective sheet (21) are pasted is cut into pieces of predetermined sizes by the cutting blade (31) of a cutting device (27) for automatically manufacturing the light guide plate.
Description
Technical field
The present invention relates to the manufacturing method of light conducting board that display floater adopted such as liquid crystal panel that portable telephone set etc. possesses, on the surface of the sheet material by the injection moulding machine moulding, attach special thin slice and can make luminous manufacturing method of light conducting board of its face and LGP equably with light transmission thereby particularly relate to.
Background technology
In recent years, employing makes light carry out the luminous LGP of face equably in the LCD monitor of relatively miniaturization.In this LGP, on a face of the sheet material of allyl resin system, be provided with the light converging pattern that makes the light reflection, on another side, be provided with and make light assemble and improve the diffusion patterned of brightness to the front.
When making LGP, generally adopt injection moulding machine, but the molding cycle time in 1 cycle when making the LGP moulding in recent years need about 13～15 seconds, expectation further makes the molding cycle time shorten.On the other hand, as sheet material with the part of the LGP of mold cavity moulding, by the injection moulding machine moulding time, with sheet material together, under the state that sheet material forms, be removed becoming running channel formation portion of moulding loss (corresponding running channel and form part) and runner formation portion (corresponding runner and form part), therefore need be used for the removal operation that removes is got by running channel formation portion and runner formation portion as these moulding losses.Then; in this removal operation or after removing operation, whether be the inspection operation of defective grade, and then after checking operation; the light converging pattern that is arranged on the sheet material two sides and diffusion patterned surface are attached the protection thin slice, adhere to dust or cause damage preventing.In addition, actual conditions are, the attaching operation of this inspection operation and protection thin slice by skilled person etc. with handwork and visual and manually carry out.
Correlation technique as above-mentioned manufacturing method of light conducting board, the method of compression molding of following small-sized light conducting plate is disclosed in the patent documentation 1: when the LGP that the manufacturing thickness ratio approaches, in order to shorten its molding cycle time, utilize in the cooling medium stream cooling medium flowing that die cavity formation face is cooled off, cooling medium stream that will be different with this cooling medium stream is cooled to the lower temperature of cooling medium stream that comparison die cavity formation face cools off, and realizes the high speed of injection speed thus.
In addition, in patent documentation 2, about the mould that carries out the moulding of LGP in the die cavity formation portion that between mould, forms, the mould of following light guide section is disclosed: make sprue bush and the cooling medium stream that die cavity formation portion is cooled off that is configured in around it independent separately, thus, even running channel is thinner, the cooling that also can tackle the molten resin in the die cavity is shunk and is kept packing state and carry out compression forming, become the ratio of the runner formation portion and the running channel formation portion of moulding loss by minimizing, can improve yield rate, and further shorten the molding cycle time.
Patent documentation
No. 4044608 communique of patent documentation 1:JP patent
No. 4047917 communique of patent documentation 2:JP patent
Summary of the invention
In aforesaid patent documentation 1 and patent documentation 2, all be to be the technology of purpose with the manufacturing efficient that improves LGP, but only by shorten the productivity ratio that the molding cycle time is difficult to improve LGP tremendously.Promptly, the molding cycle time in 1 cycle generally also needs about 15 seconds, even accelerate injection speed, or reduces to become the volume of the running channel formation portion of moulding loss, only by shortening the molding cycle time a little, still be difficult to realize improve significantly the purpose of the production efficiency of LGP.
The present invention is the invention that solves above-mentioned problem, its purpose is to provide a kind of manufacturing method of light conducting board to reach the LGP that produces thus, when utilizing this manufacturing method of light conducting board to make LGP, it or not the shortening that realizes by the molding cycle time of moulding such as injection moulding machine, wait the manual work automation that utilizes handwork to carry out but make in the past by the skilled person, thereby improved the productivity ratio when making LGP.
The manufacturing method of light conducting board of technical scheme 1,
Make the screw rod that is arranged in the heating cylinder retreat and carry out the metering of molten resin while rotating; Described screw rod is advanced; The die cavity that is formed by fixed mould and moveable die during to matched moulds with the injection nozzle from the front end that is fixed on described heating cylinder is injected described molten resin and is shaped to transparent sheet material; Upper and lower surface at this sheet material attaches thin slice and makes LGP; Wherein, Described fixed mould is fixed on the fixed punch template; Described moveable die is fixed on the movable die plate that arranges in the mode that can advance and retreat
It is characterized in that,
After the mold cavity forming that utilization is made of described fixed mould that injection moulding machine possessed and described moveable die is described sheet material,
Discharge adheres to the sheet material in the described die cavity, takes out this sheet material of being discharged by withdrawing device,
With the lower surface mounting of described sheet material behind the regulation mounting position of the upper surface of the bottom surface thin slice of emitting from the first foil roll along continuous straight runs,
By mounting on the bottom surface thin slice of emitting and the upper surface thin slice that the upper surface mounting of the described sheet material of carrying is emitted from second foil roll attaches this upper surface thin slice and bottom surface thin slice on described sheet material from first foil roll,
With respect to the sheet material that the along continuous straight runs that is pasted with described upper surface thin slice and bottom surface thin slice is carried, make the cutting knife that is arranged on the shearing device slide and cut into given size along vertical.
The manufacturing method of light conducting board of technical scheme 2 based on technical scheme 1, is characterized in that,
Described withdrawing device possesses by producing the holding device that negative pressure attracts described sheet material, and the described sheet material mounting of attraction taking-up that will be by this holding device is in the regulation mounting position of the upper surface of described bottom surface thin slice.
The manufacturing method of light conducting board of technical scheme 3 based on technical scheme 2, is characterized in that,
At least possess described first foil roll, described second foil roll and described shearing device with the thin slice forming processing device of described injection moulding machine split setting,
Described thin slice forming processing device is disposed at the sidepiece of described injection moulding machine,
Connect with the beeline straight line near the described die cavity be used for taking out described sheet material from the die cavity of the mould of this injection moulding machine conveying end and by the imaginary line of described thin slice forming processing device in the regulation mounting position of the described sheet material of upper surface mounting of described bottom surface thin slice, dispose described withdrawing device
To carry to described regulation mounting position with beeline from the described sheet material that near the conveying end the described die cavity takes out.
The manufacturing method of light conducting board of technical scheme 4 based on technical scheme 3, is characterized in that,
Described injection moulding machine and described thin slice forming processing device alternately are arranged side by side a plurality of respectively, corresponding each described injection moulding machine, sidepiece at this injection moulding machine respectively disposes a described thin slice forming processing device, with each one of described injection moulding machine and described thin slice forming processing device as 1 unit and be arranged side by side a plurality of these unit, thereby continuous batch is produced described LGP concurrently.
The LGP of technical scheme 5; it is characterized in that; in technical scheme 3 or 4 manufacturing method of light conducting board of being put down in writing, as the protection thin slice, this protection thin slice is attached at the upper and lower surface of described sheet material by forming processing device with described upper surface thin slice and bottom surface thin slice.
The invention effect
According to the present invention; when making LGP; after carrying out the moulding of sheet material by injection moulding machine; not to be undertaken attaching protection thin slice etc. to make the operation of LGP by skilled person's handwork as in the past in the upper and lower surface of this sheet material; but can automatically carry out this operation by the thin slice forming processing device; therefore can carry out the manufacturing of LGP at short notice; and; also can prevent to cause damage or dirty for the upper and lower surface of sheet material by artificial handwork; therefore can reduce the unfavorable condition that causes by manual work, and then can improve yield rate and enhance productivity.
And; sheet material near the taking-up of the conveying end the die cavity; can carry to the regulation mounting position of thin slice forming processing device with short distance; therefore the surface of protection thin slice protection sheet material can be before adhering to fine impurity such as dust, dust on the clear sheet, utilized, yield rate can be further improved.And, owing to automatically protect the attaching operation of thin slice by the thin slice forming processing device, so can shorten the attaching activity time when making LGP, thus can enhance productivity.
In addition, to be used to make each one of the injection moulding machine of plate forming and thin slice forming processing device as 1 unit, and be arranged side by side a plurality of said units, thus, can carry out the batch process of LGP, and can will discharge from equidirectional, therefore after discharge, can simply and at short notice carry out efficiently the package handling that LGP carries out by robot, operator by a plurality of LGPs of each thin slice forming processing device manufacturing.
Description of drawings
Fig. 1 is the summary pie graph that the unit of observing formation injection moulding machine as the present invention's one example, thin slice forming processing device etc. from the top is arranged side by side a plurality of states.
Fig. 2 is the front view of the formation of the expression thin slice forming processing device identical with Fig. 1.
The specific embodiment
Below, illustrate as the embodiment that is used to implement optimum way of the present invention by Fig. 1, Fig. 2.Certainly, the present invention also can easily be suitable for for the formation beyond illustrating among the embodiment in the scope of the purport of not violating invention, and this need not to illustrate.
Fig. 1 is an example of the present invention, is to observe the summary pie graph that the unit that constitutes injection moulding machine, thin slice forming processing device etc. is arranged side by side a plurality of states from the top, and Fig. 2 is the front view of the formation of expression thin slice forming processing device.As shown in Figure 1, an injection moulding machine 1 and a thin slice forming processing device 2 also comprise 1 withdrawing device 3, and these are arranged side by side as 1 unit 4, and withdrawing device 3 disposes in the mode that connects between injection moulding machine 1 and the thin slice forming processing device 2.
Injection moulding machine 1 possesses closing unit 5 and injecting unit 6, in the closing unit 5, constitute the moveable die 8 that is fixed on the movable die plate 7, be fixed in fixed mould 10 on the fixed punch template 9, be used to make moveable die 8 to carry out the elbow-bar mechanism etc. of folding mould with respect to fixed mould 10 advance and retreat.
In the injecting unit 6, having the granular feedstock of input is the hopper 11 of resin (particle), granular resin falls and is dropped in the heating cylinder 12 of the cartridge type of being located at its below from this hopper 11 owing to conduct oneself with dignity, the molten resin that is supplied in the heating cylinder 12 and has carried out plasticizing because of heat is measured by being located at the not shown screw rods rotation in the heating cylinder 12 and retreating, above-mentioned screw rod is advanced, the die cavity injecting molten resin that forms by fixed mould 10 and moveable die 8 when the matched moulds from the injection nozzle 13 of the front end that is fixed on heating cylinder 12 and be shaped to sheet material B as formed body.In addition; in the injection moulding machine 1 of present embodiment; the sheet material B that utilizes mold cavity forming is the material that is used for LGP; therefore be the transparent body; on each face (upper and lower surface) of this transparent sheet material B, be provided with light converging pattern and diffusion patterned, attach protection thin slice described later and make LGP at light converging pattern and diffusion patterned surface.
Then, by Fig. 2 the thin slice forming processing device is described.Thin slice forming processing device 2 shown in Figure 2; attach the i.e. first protection thin slice 20 of bottom surface thin slice at lower surface by the sheet material B of injection moulding machine 1 moulding; attach the i.e. second protection thin slice 21 of upper surface thin slice at upper surface; cut into given size then; these flow charts have been realized automation, possess first foil roll 22 that is wound with the first protection thin slice 20; be wound with second foil roll 23 of the second protection thin slice 21; be arranged side by side up and down a pair of first; second guide reel 24; 25; conveying roller group 26 and shearing device 27 that the sheet material B that is pasted with the first protection thin slice 20 and the second protection thin slice 21 on each face is cut off etc.In addition, first, second foil roll 22,23 and roller 24,25,26 are rotated freely and support, and the not shown motor as rotary drive unit is carried the first protection thin slice 20 (from left side shown in Figure 2 to the right) as drive source.
Withdrawing device 3 shown in Figure 1 can will utilize the sheet material B of the mold cavity moulding of injection moulding machine 1 to take out near the conveying end a the die cavity, and mounting be in the regulation mounting position b of thin slice forming processing device 2; In this withdrawing device 3; possess for sheet material B is utilized the holding device of negative-pressure adsorption sheet material B near the taking-up of the conveying end a the die cavity; utilize holding device from the sheet material B that conveying end a attracts, be transferred and mounting in the regulation mounting position b of the upper surface of the first protection thin slice 20 shown in Figure 2.In addition; under the die opening state that moveable die shown in Figure 18 retreats; withdrawing device 3 is disposed at the beeline straight line and connects on the imaginary line X of regulation mounting position b of upper surface of near the die cavity the conveying end a and the first protection thin slice 20, sheet material B can be carried with short distance to regulation mounting position b near the conveying end a the die cavity by withdrawing device 3.
Then, illustrate and attach the operation that the protection thin slice is made LGP on by the sheet material of injection moulding machine moulding.The sheet material B that passes through injection moulding machine 1 moulding end that near the die cavity of injection moulding machine 1 conveying end a is had; the holding device that is removed device 3 attracts and keeps, and by mounting in emitting from first foil roll 22 of thin slice forming processing device 2 and through the regulation mounting position b of the upper surface of the first protection thin slice 20 of first guide reel 24.
Then; from second foil roll 23 via second guide reel 25 emit second the protection thin slice 21; after being carried the upper surface that is placed at the sheet material B of mounting on the first protection thin slice 20; by second conveying roller 25, conveying roller group 26 etc. the first protection thin slice 20 and the second protection thin slice 21 are attached at each face of sheet material B reliably, and can peel off.
Then; the sheet material B that is pasted with the first protection thin slice 20 and the second protection thin slice 21 is further guided to horizontal direction (left side shown in Figure 2) by first, second guide reel 24,25, conveying roller group 26 etc.; when arriving the off-position c of regulation; rotary drive unit stops; under this state; the cutting knife 31 that is provided with on the shearing device 27 is along vertical decline and cut into given size, thereby the manufacturing of LGP finishes.Then, repeat above-mentioned action, to repeat the manufacturing of LGP.
As previously discussed; according to present embodiment; make the screw rods rotation that is arranged in the heating cylinder 12 and retreat simultaneously and carry out the metering of molten resin; screw rod is advanced; from the injection nozzle 13 of the front end that is fixed on heating cylinder 12 when the matched moulds by being fixed in the fixed mould 10 on the fixed punch template 9 and being fixed in die cavity injecting molten resin that the moveable die 8 on the movable die plate 7 that can be provided with forms etc. with advancing and retreat; be shaped to after the surface is provided with light converging pattern and diffusion patterned transparent sheet material B; the sheet material B that will adhere to die cavity by the ejection pin that can advance and retreat etc. discharges; attract to take out the sheet material B that discharges near the conveying end a the die cavity by withdrawing device 3; with the lower surface mounting of the sheet material B that takes out in emit from first foil roll 22 and the regulation mounting position b of the upper surface of the first protection thin slice (bottom surface thin slice) 20 that along continuous straight runs is sent by 24 clampings of first guide reel time after; by mounting on the first protection thin slice 20 of emitting and on the upper surface of the sheet material B that transports from first foil roll 22; the second protection thin slice (upper surface thin slice) 21 that mounting is emitted from second foil roll 23 by 25 clampings of second guide reel time; to be coated with first of adhesives at a face protects the thin slice 20 and the second protection thin slice 21 to be attached on each face of sheet material B; with respect to along continuous straight runs transport be pasted with first the protection thin slice 20 and second the protection thin slice 21 sheet material B; make the cutting knife 31 that is provided with on the shearing device 27 automatically carry out sliding action along vertical; cut into given size and make LGP; therefore; after being shaped to sheet material B by injection moulding machine 1; undertaken by personnel in the past; the upper and lower surface attaching first protection thin slice 20 and second at sheet material B is protected thin slice 21 and the operation of manufacturing LGP; can realize automation by thin slice forming processing device 2; therefore can carry out the manufacturing of LGP at short notice; and then; owing to do not carry out attaching protection thin slice 20 for handwork by the people; 21 operation is so also can prevent to cause damage or dirty on the surface of sheet material B.Therefore, can suppress the unfavorable condition that causes because of manual work, improve yield rate, and improve the production efficiency of LGP.
And; as shown in Figure 1; with injection moulding machine 1 split thin slice forming processing device 2 is set; in this thin slice forming processing device 2; possesses first foil roll 22 that is wound with the first protection thin slice 20; be wound with second protection second foil roll 23 of thin slice 21 and shearing device 27 etc.; the above-mentioned thin slice forming processing device 2 of sidepiece (cross side) configuration at injection moulding machine 1; connecting being used on the injection moulding machine 1 with the beeline straight line takes out near the conveying end a the die cavity of sheet material B and forms imaginary line X at the regulation mounting position b of the upper surface mounting sheet material B of the first protection thin slice 20; configuration withdrawing device 3 on this imaginary line X; therefore; can be carried with short distance to the regulation mounting position b of thin slice forming processing device 2 by the sheet material B that takes out near the conveying end a the die cavity, can shorten its time of delivery.And; for the sheet material B that carries with short distance; can promptly attach the first protection thin slice 20 and the second protection thin slice 21, can before adhering to fine impurity such as dust, dust on the transparent sheet material B, finish to attach operation, therefore can further improve the yield rate of goods.And, automatically attach operation by thin slice forming processing device 2, therefore compare and can attach operation at short notice, thereby can boost productivity with manual work.
In addition, to be used to make the injection moulding machine 1 of sheet material B moulding and thin slice forming processing device 2 each, also comprise a withdrawing device 3, as 1 unit 4, and be arranged side by side a plurality of these unit 4, can further realize the batch process of LGP thus, and a plurality of LGPs that the thin slice forming processing device 2 by each unit 4 produces are arranged and are discharged to wrapping position d along equidirectional, therefore operating personnel waits in order to pack LGP when each wrapping position d of the rear end side of thin slice forming processing device 2 moves, can shown in the direction of arrow among Fig. 1, move, therefore can carry out package handling at short notice efficiently with the short distance straight line.
Label declaration
1 injection moulding make-up machine
3 take out device
41 unit
7 movable die plates
8 moveable dies
9 fixed punch templates
10 fixed moulds
12 heating cylinders
13 injection nozzles
20 first protection thin slices (bottom surface thin slice)
21 second protection thin slices (upper surface thin slice)
22 first foil roll
23 second foil roll
27 shearing devices
31 cutting knifes
B sheet material
The X imaginary line
The a conveying end
B regulation mounting position
Claims (according to the modification of the 19th of treaty)
1. manufacturing method of light conducting board, make and be arranged on the screw rod of heating in the cylinder and retreat and carry out the metering of molten resin while rotating, described screw rod is advanced, inject described molten resin and be shaped to transparent sheet material by the die cavity that fixed mould and moveable die form when the matched moulds with the injection nozzle from the front end that is fixed on described heating cylinder, upper and lower surface at this sheet material attaches thin slice and makes LGP, wherein, described fixed mould is fixed on the fixed punch template, described moveable die is fixed on the movable die plate that is provided with in the mode that can advance and retreat
It is characterized in that,
Use is according to the injection moulding machine of the arranged in order of described movable die plate, described moveable die, described fixed mould, described fixed punch template, described injection nozzle, after the mold cavity forming that utilization is made of described fixed mould that this injection moulding machine possessed and described moveable die is described sheet material
Discharge adheres to the sheet material in the described die cavity, takes out this sheet material of being discharged by withdrawing device,
Use to be arranged side by side with described injection moulding machine and according to the thin slice forming processing device of the arranged in order of first foil roll, first guide reel, second guide reel, second foil roll, shearing device,
With the lower surface mounting of described sheet material in the upper surface of the bottom surface thin slice of emitting from the described first foil roll along continuous straight runs, behind the regulation mounting position between described first guide reel and described second guide reel,
By mounting on the bottom surface thin slice of emitting and the upper surface of the described sheet material of carrying from described first foil roll, the upper surface thin slice that mounting is emitted from described second foil roll attaches described upper surface thin slice and described bottom surface thin slice on described sheet material,
With respect to the described sheet material that the along continuous straight runs that is pasted with described upper surface thin slice and described bottom surface thin slice is carried, make the cutting knife that is arranged on the shearing device slide and cut into given size along vertical.
2. manufacturing method of light conducting board according to claim 1 is characterized in that,
Described withdrawing device possesses by producing the holding device that negative pressure attracts described sheet material, and the described sheet material mounting of attraction taking-up that will be by this holding device is in the regulation mounting position of the upper surface of described bottom surface thin slice.
3. manufacturing method of light conducting board according to claim 2 is characterized in that,
At least possess described first foil roll, described second foil roll and described shearing device with the thin slice forming processing device of described injection moulding machine split setting,
Described thin slice forming processing device is disposed at the sidepiece of described injection moulding machine,
Connect with the beeline straight line near the described die cavity be used for taking out described sheet material from the die cavity of the mould of this injection moulding machine conveying end and by the imaginary line of described thin slice forming processing device in the regulation mounting position of the described sheet material of upper surface mounting of described bottom surface thin slice, dispose described withdrawing device
To carry to described regulation mounting position with beeline from the described sheet material that near the conveying end the described die cavity takes out.
4. manufacturing method of light conducting board according to claim 3 is characterized in that,
Described injection moulding machine and described thin slice forming processing device alternately are arranged side by side a plurality of respectively,
Corresponding each described injection moulding machine respectively disposes a described thin slice forming processing device at the sidepiece of this injection moulding machine,
With each one of described injection moulding machine and described thin slice forming processing device as 1 unit and be arranged side by side a plurality of these unit, thereby continuous batch is produced described LGP concurrently.
5. a LGP is characterized in that,
In claim 3 or 4 manufacturing method of light conducting board of being put down in writing, as the protection thin slice, this protection thin slice is attached at the upper and lower surface of described sheet material by forming processing device with described upper surface thin slice and bottom surface thin slice.
Claims (5)
1. manufacturing method of light conducting board, make and be arranged on the screw rod of heating in the cylinder and retreat and carry out the metering of molten resin while rotating, described screw rod is advanced, inject described molten resin and be shaped to transparent sheet material by the die cavity that fixed mould and moveable die form when the matched moulds with the injection nozzle from the front end that is fixed on described heating cylinder, upper and lower surface at this sheet material attaches thin slice and makes LGP, wherein, described fixed mould is fixed on the fixed punch template, described moveable die is fixed on the movable die plate that is provided with in the mode that can advance and retreat
It is characterized in that,
After the mold cavity forming that utilization is made of described fixed mould that injection moulding machine possessed and described moveable die is described sheet material,
Discharge adheres to the sheet material in the described die cavity, takes out this sheet material of being discharged by withdrawing device,
With the lower surface mounting of described sheet material behind the regulation mounting position of the upper surface of the bottom surface thin slice of emitting from the first foil roll along continuous straight runs,
By mounting on the bottom surface thin slice of emitting and the upper surface thin slice that the upper surface mounting of the described sheet material of carrying is emitted from second foil roll attaches this upper surface thin slice and bottom surface thin slice on described sheet material from first foil roll,
With respect to the sheet material that the along continuous straight runs that is pasted with described upper surface thin slice and bottom surface thin slice is carried, make the cutting knife that is arranged on the shearing device slide and cut into given size along vertical.
2. manufacturing method of light conducting board according to claim 1 is characterized in that,
Described withdrawing device possesses by producing the holding device that negative pressure attracts described sheet material, and the described sheet material mounting of attraction taking-up that will be by this holding device is in the regulation mounting position of the upper surface of described bottom surface thin slice.
3. manufacturing method of light conducting board according to claim 2 is characterized in that,
At least possess described first foil roll, described second foil roll and described shearing device with the thin slice forming processing device of described injection moulding machine split setting,
Described thin slice forming processing device is disposed at the sidepiece of described injection moulding machine,
Connect with the beeline straight line near the described die cavity be used for taking out described sheet material from the die cavity of the mould of this injection moulding machine conveying end and by the imaginary line of described thin slice forming processing device in the regulation mounting position of the described sheet material of upper surface mounting of described bottom surface thin slice, dispose described withdrawing device
To carry to described regulation mounting position with beeline from the described sheet material that near the conveying end the described die cavity takes out.
4. manufacturing method of light conducting board according to claim 3 is characterized in that,
Described injection moulding machine and described thin slice forming processing device alternately are arranged side by side a plurality of respectively,
Corresponding each described injection moulding machine respectively disposes a described thin slice forming processing device at the sidepiece of this injection moulding machine,
With each one of described injection moulding machine and described thin slice forming processing device as 1 unit and be arranged side by side a plurality of these unit, thereby continuous batch is produced described LGP concurrently.
5. a LGP is characterized in that,
In claim 3 or 4 manufacturing method of light conducting board of being put down in writing, as the protection thin slice, this protection thin slice is attached at the upper and lower surface of described sheet material by forming processing device with described upper surface thin slice and bottom surface thin slice.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008247468A JP5571891B2 (en) | 2008-09-26 | 2008-09-26 | Method for manufacturing light guide plate |
| JP2008-247468 | 2008-09-26 | ||
| PCT/JP2009/065170 WO2010035610A1 (en) | 2008-09-26 | 2009-08-31 | Method of manufacturing light guide plate and light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102131625A true CN102131625A (en) | 2011-07-20 |
Family
ID=42059616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980133197.3A Pending CN102131625A (en) | 2008-09-26 | 2009-08-31 | Method of manufacturing light guide plate and light guide plate |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5571891B2 (en) |
| KR (1) | KR101612573B1 (en) |
| CN (1) | CN102131625A (en) |
| TW (1) | TWI438510B (en) |
| WO (1) | WO2010035610A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI399573B (en) * | 2010-06-15 | 2013-06-21 | Dynacolor Inc | Method of film attachment for light guide plate |
| JP5391238B2 (en) * | 2011-07-11 | 2014-01-15 | 住友化学株式会社 | Dot pattern printing light guide plate |
| CN111559073A (en) * | 2020-04-15 | 2020-08-21 | 南京贝迪电子有限公司 | Light guide film product processing equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006021444A (en) * | 2004-07-08 | 2006-01-26 | Mitsubishi Rayon Co Ltd | Manufacturing method of sheet product with protective film |
| WO2007123210A1 (en) * | 2006-04-20 | 2007-11-01 | Sumitomo Heavy Industries, Ltd. | Resin molding apparatus and method of resin molding |
| JP4047913B1 (en) * | 2007-04-18 | 2008-02-13 | 株式会社名機製作所 | Light guide plate take-out device and light guide plate take-out method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4399483B2 (en) * | 1996-09-24 | 2010-01-13 | セイコーエプソン株式会社 | Liquid crystal display device and electronic device |
| JP2001293728A (en) * | 2000-04-11 | 2001-10-23 | Vessel Industrial Co Ltd | Method and apparatus for removing static electricity of resin molded article |
| JP2002192600A (en) * | 2000-12-26 | 2002-07-10 | Kyocera Corp | Method for manufacturing optical plate-like member |
| JP3878001B2 (en) * | 2001-11-14 | 2007-02-07 | 株式会社名機製作所 | Large light guide plate molding method and large light guide plate molding die |
| JP2006334965A (en) * | 2005-06-03 | 2006-12-14 | Toray Ind Inc | Method for producing laminate |
| JP2008226561A (en) * | 2007-03-09 | 2008-09-25 | Sharp Corp | Backlight unit |
| KR100797550B1 (en) * | 2007-03-26 | 2008-01-24 | (주)유엠메카닉스 | Laminating apparatus for light guide plated |
-
2008
- 2008-09-26 JP JP2008247468A patent/JP5571891B2/en not_active Expired - Fee Related
-
2009
- 2009-08-31 WO PCT/JP2009/065170 patent/WO2010035610A1/en active Application Filing
- 2009-08-31 CN CN200980133197.3A patent/CN102131625A/en active Pending
- 2009-08-31 KR KR1020107028922A patent/KR101612573B1/en not_active IP Right Cessation
- 2009-09-16 TW TW98131289A patent/TWI438510B/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006021444A (en) * | 2004-07-08 | 2006-01-26 | Mitsubishi Rayon Co Ltd | Manufacturing method of sheet product with protective film |
| WO2007123210A1 (en) * | 2006-04-20 | 2007-11-01 | Sumitomo Heavy Industries, Ltd. | Resin molding apparatus and method of resin molding |
| JP4047913B1 (en) * | 2007-04-18 | 2008-02-13 | 株式会社名機製作所 | Light guide plate take-out device and light guide plate take-out method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5571891B2 (en) | 2014-08-13 |
| WO2010035610A1 (en) | 2010-04-01 |
| KR20110074955A (en) | 2011-07-05 |
| TW201015134A (en) | 2010-04-16 |
| KR101612573B1 (en) | 2016-04-14 |
| TWI438510B (en) | 2014-05-21 |
| JP2010076274A (en) | 2010-04-08 |
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Application publication date: 20110720 |