CN102189677A - Film stretching device and method thereof - Google Patents
Film stretching device and method thereof Download PDFInfo
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- CN102189677A CN102189677A CN2011100638038A CN201110063803A CN102189677A CN 102189677 A CN102189677 A CN 102189677A CN 2011100638038 A CN2011100638038 A CN 2011100638038A CN 201110063803 A CN201110063803 A CN 201110063803A CN 102189677 A CN102189677 A CN 102189677A
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- film
- chamber
- outlet
- air
- loop
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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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
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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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/20—Edge clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The present invention provides a film stretching device and a method thereof. In the invention, a clamp (5) which moves along each outlet path (11d,12d) of each guide rail (11,12) is accommodated in an outlet chamber (45), and a clamp (5) which moves along each inlet path (11e,12e) is accommodated in an inlet chamber (46). The outlet chamber (45) and the inlet chamber (46) are provided through a mutually airtight mode. The cooling air which enters the inlet chamber for cooling the clamp is exhausted to one side of a pipe from an air outlet (54c) formed on the pipe. An upper exhaust channel (62) which exhausts the air in the outlet chamber to one side of an outer cover (61) is provided among an upper cover (61a), the outlet chamber and the inlet chamber. A lower exhaust channel which exhausts the air in the outlet path to one side of the outer cover is provided among a lower cover, the outlet chamber and the inlet chamber.
Description
Technical field
The present invention relates to a kind of film stretching device and method of stretched film.
Background technology
In recent years, because the fast development of LCDs etc. and popularizing, the demand of polymer film, the especially cellulose acylate film that uses in the diaphragm of these LCDs etc. is pursued and is increased progressively length.Along with this growth that needs, expectation improves productivity.Cellulose acylate film (hereinafter referred to as film) is made by following, promptly utilizes curtain coating mould curtain coating dope on the supporter of advancing continuously, after supporter peels this casting films, makes it dry and batch.
As the method for optical characteristics, the especially control lag of regulating film, carrying out the method to the width stretched film such as the film stretching device that utilizes tenter frame apparatus.In the tenter frame apparatus, make the clip of the both side edges portion of controlling film or pin etc. control parts and move along pair of guide rails.In addition, pin is used as in this manual and is controlled one of parts for the maintaining body that the puncture film keeps.Guide rail is provided with outlet portion and loop portion, moves along guide rail outlet portion when controlling the both side edges portion that parts control film, and to the width stretched film, decontrols the back of controlling of film and moves and return guide rail outlet portion along guide rail loop portion.
In the tenter frame apparatus, winding-up adds hot blast and film is heated makes it easy stretching.Add hot blast by this, the parts of controlling that move in guide rail outlet portion are also heated.If with the parts of controlling that keep heated condition, specifically, (glass transformation temperature, Tg) parts of controlling of higher temperature are controlled film, then cause the film of grip portion to be torn to use the glass transition point that is heated to than film.Therefore, disclose in the multi-stag stenter of putting down in writing in the flat 2-182654 communique, disclose following technology at Japan Patent.That is, from cooling air duct towards controlling parts air-supplies cooling air and cool off guide rail loop portion moves to controlling parts.
If the parts of controlling that are cooled are controlled film and are moved in guide rail outlet portion, add then that the hot blast contact is cooled control parts and the temperature that causes adding hot blast descends, become Cryogenic air as adding the air that hot blast supplies with.If this Cryogenic air adverse current and contact membranes side edge part then cause the temperature of film side edge part to descend.In addition, if cooling air leaks from cooling air duct, then be somebody's turn to do the cooling air contact membranes side edge part that leaks, the temperature of film side edge part will descend.The film side edge part that temperature descends can not stretch fully and can't use as product, so cut this side edge portions of film and as product.Descend and minimizing excision amount by the temperature that suppresses the film side edge part, enlarge the part of using as product, and improve productivity.But in technology in the past, the temperature of film side edge part still descends about 15～25 ℃, and expectation further improves product and draws rate.
Disclose in the cross directional stretch device of the film of putting down in writing in the clear 61-160223 communique at Japan Patent, be provided with to cover and control the outer cover of parts and attract the interior air of this outer cover.Thus, prevent Cryogenic air in the outer cover to the film adverse current, thereby the temperature that prevents the film side edge part descends.
In addition, in the manufacture method of the biaxial stretching polyamide film of the open 2000-254966 communique of Japan Patent, be provided with and cover the outer cover of controlling parts, make air pressure in this outer cover pass through air pressure partly and hang down 5～50hPa than film, make air mobile become film by the folk prescription of part in outer cover to.Thus, prevent Cryogenic air in the outer cover to the film adverse current, thereby the temperature that prevents the film side edge part descends.In addition, by draught head is made as 5～50hPa, the adjustment air by the flow that part flows in outer cover, suitably rises the temperature of controlling parts from film.Thus, prevent to control liters per hour on the temperature of parts or the cutting of the film that takes place when big.
Japan Patent discloses in the clear 61-160223 communique, attracts the attraction mouth of air in the outer cover only to be arranged on inlet and outlet, in addition, is equipped with in identical space what guide rail outlet portion moved and controls parts and control parts what guide rail loop portion moved.Therefore, the Cryogenic air in the outer cover contacts with the parts of controlling that move in guide rail loop portion.If Cryogenic air contacts with the parts of controlling that move in guide rail loop portion, then can not fully cool off sometimes and control parts.If with the inadequate parts of controlling of this cooling film is controlled, then the film of grip portion is torn sometimes.In addition, in the open 2000-254966 communique of Japan Patent, the concrete structure that the outer cover of parts is controlled in covering is not put down in writing, and not have to consider with the situation that parts contact of controlling that moves in guide rail loop portion toward flowing into the interior Cryogenic air of outer cover.
Summary of the invention
The present invention finishes in order to solve above-mentioned problem, provide a kind of certain cooling guide rail loop portion move control parts in, suppress Cryogenic air and flow into film both side edges portion, thereby the temperature that suppresses the film side edge part descends, and can significantly improve film stretching device and the method that product draws rate thus.
To achieve these goals, the following formation of film stretching device of the present invention: possess pair of guide rails, heater, a plurality of anti-locking mechanism of parts, chamber, outlet, chamber, loop, cold wind device and inflow of controlling.Described guide rail has outlet portion and loop portion.Heater heats film.A plurality ofly stretch by the film of described heater heating to width when controlling the both side edges portion that parts control film.A plurality of parts of controlling move along the outlet portion of described guide rail and carry out described stretching.A plurality of parts of controlling are decontroled after the controlling of film, move and return the outlet portion of guide rail along the loop portion of guide rail.The chamber, outlet holds the described parts of controlling that move along the outlet portion of described guide rail.The chamber, loop holds the described parts of controlling that move along the loop portion of described guide rail.The chamber, loop is to be provided with in mutual air-locked mode with the chamber, outlet.The cold wind device is blown to cooling air.Described cooling air is to the indoor mobile parts of controlling cool off in the loop.Flow into anti-locking mechanism and prevent that temperature is than the both side edges portion that the lower Cryogenic air of hot-air flows into film that adds by described heater heating.
In addition, described film is preferably polymer film, more preferably cellulose acylate film.As cellulose acylate film, can enumerate Triafol T (TAC) or cellulose diacetate (DAC).
Above-mentioned stretching device preferably further possesses the outer cover that covers chamber, described outlet and chamber, loop, and the anti-locking mechanism of described inflow is made of the exhaust passage.At this moment, described exhaust passage is separately positioned on the top of chamber, described outlet and chamber, described loop and below promptly and between the described outer cover.The exhaust passage contacts after indoor and describedly controls parts and temperature when being declined to become Cryogenic air going into described outlet by the heated air flow of described heater heating, described Cryogenic air is vented to a side of described outer cover.
Preferably in described outer cover, be provided with the exhaust apparatus of described Cryogenic air towards the air-supply of described exhaust passage.
The preferred film stretching device further possesses makes the roughly conduit of sealing state of the indoor one-tenth in described loop.Preferred described conduit has air inlet and exhaust outlet, and it is indoor that described air inlet will be sent into described loop from the cooling air of described cold wind device air-supply, and described exhaust outlet carries out exhaust to cooling off described cooling air of controlling behind the parts.
In addition, the preferred film stretching device further possesses the described binding parts of controlling a plurality of outer covers of parts and guide rail and linking described a plurality of outer covers of covering, and described pair of guide rails is made of outlet portion and loop portion.Preferred described outlet portion and loop feature do not have the rake to the direction of transfer inclination of the line part of the direction of transfer extension of described film and relative described film.Preferably controlling parts is made of the clip with framework and clamper.Framework has the base of the side edge part that carries described film, and described clamper displacement is installed in freely on the described framework and carries out displacement between position and the ejected position controlling.Described control the position for and described base between control the position of described film, described ejected position is for decontroling the position of controlling.Described binding parts set with the angle of inclination according to described rake so that cover the outer cover of described rake in described a plurality of outer cover according to the angle of inclination distortion of described rake.The anti-locking mechanism of described inflow have make the indoor one-tenth in described loop roughly sealing state conduit and be installed on the chamber of described conduit with sealing state roughly.The corresponding described a plurality of outer covers of described conduit are provided with a plurality of, have from the air inlet that cooling air entered of described cold wind device air-supply and exhaust outlet that the cooling air that cools off behind the described clip is carried out exhaust.The described respectively a plurality of conduits in described chamber are provided with a plurality of, and has a slit-shaped nozzle, described nozzle is towards the described base of parts and the described cooling air that the clamper winding-up enters from described air inlet of controlling, and described chamber is to be communicated with described air inlet and to be arranged on the described conduit with the mutual disconnected mode of described exhaust outlet.
In this film stretching device, preferred described exhaust outlet be arranged on described binding parts near.
In addition, film drawing process of the present invention possesses stretching step (A step), returns step (B step), cooling step (C step) and prevent to flow into step (D step).In the A step, stretch by the described film of heater heating to width.This stretching by make the both side edges portion of controlling film a plurality of control parts along the outlet portion of pair of guide rails in the outlet indoor moving carry out.In the B step, make decontrol described film control described a plurality of control parts in the loop the indoor outlet portion that moves and return described guide rail.Described a plurality of parts of controlling move and return described outlet portion along the loop portion of described guide rail.Chamber, described loop is to be provided with the mutual air-locked mode in chamber, described outlet.In the C step, cooling air is blown.Described cooling air is to the indoor mobile described parts of controlling cool off in described loop.In the D step, prevent that temperature is than the both side edges portion that the lower Cryogenic air of hot-air flows into described film that adds by described heater heating.
In this film drawing process, in the preferred described D step, the indoor back contact of described outlet is described controls parts and temperature when being declined to become Cryogenic air going into by the heated air flow of described heater heating, with described Cryogenic air from respectively above chamber, described outlet and the chamber, loop and below promptly and cover the side that the exhaust passage that is provided with between the outer cover of chamber, described outlet and chamber, loop is vented to described outer cover.
In addition, in above-mentioned film drawing process, preferred described parts of controlling that cover described pair of guide rails and constitute by a plurality of outer covers by clip.Preferred described pair of guide rails is made of described outlet portion and described loop portion, and described outlet portion and loop feature do not have the rake of the direction of transfer inclination of line part that the direction of transfer to described film extends and relative described film.Described clip has framework and clamper, and described framework has the base of the side edge part that carries described film.Displacement be installed in freely on the described framework described clamper with described film and described base between control control the position and decontrol between the ejected position control and carry out displacement.Described a plurality of outer cover preferably is set as the state of a plurality of binding parts bindings of being out of shape by the angle of inclination according to described rake, sets with the angle of inclination according to described rake so that cover the described outer cover of described rake.Described cooling has air inlet and exhaust outlet, is undertaken by sending into described cooling air to the described air inlet of a plurality of conduits of the described a plurality of outer cover settings of correspondence.Preventing preferably of described inflow by the described base of controlling parts that moves towards loop portion from the slit-shaped nozzle that is arranged on a plurality of chambers and the clamper described cooling air of jetting along described guide rail, and the cooling air that cools off behind the described clip from described exhaust outlet exhaust carries out.Described a plurality of chamber is respectively with sealing state roughly and to be communicated with described air inlet and to be installed on described a plurality of conduit with the mutual disconnected mode of described exhaust outlet.
The invention effect
According to the present invention, prevent add the both side edges portion that hot-air lower Cryogenic air flow into film of temperature than the heating of the heater by heating film, the temperature that therefore can suppress the film both side edges portion that caused by Cryogenic air descends.Can reduce the excision amount of film side edge part thus, enlarge the part of using as product, improve productivity.
In addition, even contact after indoor and control parts and temperature when being declined to become Cryogenic air going into to hold the outlet of controlling parts of moving by the heated air flow of heater heating, also this Cryogenic air is vented to a side of outer cover by the exhaust passage along the outlet portion of guide rail.Thus, can suppress the indoor Cryogenic air in outlet, thereby the temperature that suppresses the film both side edges portion that caused by Cryogenic air descends to the film adverse current.
And,, so deliver to the indoor cooling air in loop and can't move into the chamber, outlet because it is airtight mutually to hold the chamber, loop of controlling parts and the chamber, outlet of moving along the loop portion of guide rail.In addition, because Cryogenic air that the outlet is indoor top and the exhaust passage of the below side that is vented to outer cover by being arranged on chamber, outlet and chamber, loop, so the exhaust passage insulation passed through by the Cryogenic air of steady temperature of chamber, loop.Thus, it is constant that temperature that can the loop is indoor keeps, really cooling in the loop the indoor mobile parts of controlling.
And, owing to, therefore Cryogenic air can be vented to really a side of outer cover by being arranged at exhaust apparatus in the outer cover Cryogenic air of blowing towards the exhaust passage.
In addition, cover a plurality of conduit installation rooms that a plurality of outer covers of clip and guide rail are provided with in correspondence respectively, from the slit-shaped nozzle that is formed at these a plurality of chambers base and clamper winding-up cooling air towards clip with sealing state roughly.Thus, the cooling air of only comparing air quantity still less by will be with all clips of cooling off with 1 chamber in a plurality of outer covers the time is delivered to indoor, just can cool off the base and the clamper of clip.Thus, suppress indoor pressure rises, can also suppress to leak from the air of chamber.
And, because the exhaust outlet of conduit is arranged on the annex of the binding parts that link a plurality of outer covers, so can reduce the air pressure that links in the parts, and can suppress to leak from the air that links parts.By these effects, realize reducing the air quantity that leaks the cooling air that contacts with product from clip portion, thereby can prevent the decline of product temperature, can realize that product draws the significantly raising of rate.
Description of drawings
Those skilled in the art can understand above-mentioned purpose and advantage easily by with reference to accompanying drawing and read DETAILED DESCRIPTION OF THE PREFERRED.
Fig. 1 is the vertical view of expression clip tenter frame apparatus.
Fig. 2 is the front view of clip, the 2nd guide rail, chamber, outlet, chamber, loop and the outer cover of expression clip tenter frame apparatus.
Fig. 3 is the stereogram that the expression clamper is positioned at the clip of controlling the position.
Fig. 4 is the stereogram that the expression clamper is positioned at the clip of ejected position.
Fig. 5 is the stereogram of expression clip, the 2nd guide rail, conduit and outer cover.
Fig. 6 is the stereogram of expression clip and the 2nd guide rail.
Fig. 7 is the concise and to the point figure of solution film-forming equipment.
Fig. 8 is the table that expression is provided with clip tenter frame apparatus with the experimental result of the film side edge part temperature of the clip tenter frame apparatus that is not provided with the exhaust passage of exhaust passage.
Fig. 9 is the clip, outer cover of the expression clip tenter frame apparatus that is provided with the exhaust passage and based on the descend stereogram in zone of the temperature of numerical value fluid emulation.
Figure 10 is the clip of representing not to be provided with the clip tenter frame apparatus of exhaust passage, outer cover and based on the descend stereogram in zone of the temperature of numerical value fluid emulation.
Figure 11 is the front view of clip, the 2nd guide rail, chamber, outlet, chamber, loop and outer cover of representing not to be provided with the clip tenter frame apparatus of exhaust passage.
Figure 12 is the front view of the clip, the 2nd guide rail, chamber, outlet, chamber, loop and the outer cover that are illustrated in the embodiment that exhaust fan is set in the outer cover.
Figure 13 is the front view of the clip, the 2nd guide rail, conduit, chamber and the outer cover that are illustrated in the clip tenter frame apparatus of the 2nd embodiment that the chamber is set in the conduit.
Figure 14 is the stereogram of clip, the 2nd guide rail, conduit, outer cover and the serpentine canal of expression the 2nd embodiment.
Figure 15 is the exploded perspective view of clip, the 2nd guide rail, conduit and the chamber of expression the 2nd embodiment.
Figure 16 is the vertical view of clip, the 2nd guide rail, conduit, chamber, outer cover and the serpentine canal of expression the 2nd embodiment.
Figure 17 is the concise and to the point figure of the solution film-forming equipment of the 2nd embodiment.
Figure 18 is the table of experimental result of the deviation of the delay after expression clip tenter frame apparatus that is provided with the chamber and the clip tenter frame apparatus that is not provided with the chamber stretch.
Figure 19 is the front view that is illustrated in clip, the 2nd guide rail, conduit, chamber and the outer cover of the embodiment that exhaust passage and following exhaust passage are set in the outer cover.
The specific embodiment
[the 1st embodiment]
As shown in Figure 1, the both side edges portion that clip tenter frame apparatus 2 usefulness clips 5 are controlled polymer film 3 stretches to film width B when film direction of transfer A transmits, and dry polymer film 3.
Clip tenter frame apparatus 2 possesses the 1st guide rail the 11, the 2nd guide rail 12 is arranged, reaches the 1st, the 2nd chain (endless-chain) 13,14.1st, the 2nd chain 13,14 is by the 1st guide rail 11 and 12 guiding of the 2nd guide rail.With a constant pitch a plurality of clips 5 are installed at the 1st, the 2nd chain 13,14.
Each guide rail 11,12 possesses the 1st line part 11a, 12a, rake 11b, 12b and the 2nd line part 11c, 12c.The 1st line part 11a, 12a extend to film direction of transfer A.The outside lateral tilt of the relative film direction of transfer of rake 11b, 12b A.The 2nd line part 11c, 12c extend to film direction of transfer A.In addition, the 1st, the 2nd guide rail 11,12 possesses the 11d of outlet portion, 12d and the 11e of loop portion, 12e.The 11d of outlet portion, 12d guide to clip 5 to control ejected position PB from controlling starting position PA.The 11e of loop portion, 12e guide to clip 5 to control starting position PA from controlling ejected position PB.
Clip tenter frame apparatus 2 is configured in the not shown hothouse.Hothouse is become preheating zone 2a, drawing zone 2b and stretching relax zone 2c at film direction of transfer A by zoning.Preheating zone 2a is the 1st line part 11a of each guide rail 11,12, the scope of 12a.In the 2a of preheating zone, polymer film 3 for example more than 80 ℃ below 200 ℃ by adding the hot blast preheating from heater 16 (with reference to Fig. 2) air-supply.Among the 2a of this preheating zone, a pair of clip spacing does not change, and does not carry out based on the stretching on the film width B of clip 5.Heater 16 is provided with a plurality of on film direction of transfer A with predetermined pitch.
Drawing zone 2b is the rake 11b of each guide rail 11,12, the scope of 12b.In extension area 2b, polymer film 3 is for example heating by the hot blast that adds from heater 16 air-supplies below 200 ℃ more than 80 ℃.Among this drawing zone 2b, move at rake 11b, 12b by clip 5, a pair of clip spacing increases progressively, and polymer film 3 stretches to film width B by clip 5.Become among the stretching relax zone 2c of scope of the 2nd line part 11c, 12c, a pair of clip spacing does not change, and it is lax not stretch.In addition, stretching ratio can be according to suitably changes such as desired optical.
1st, the 2nd chain 13,14 is hung around between drive sprocket 21,22 and the driven sprocket 23,24.Between these sprocket wheels 21～24, the 1st chain 13 is by 11 guiding of the 1st guide rail, and the 2nd chain 14 is by 12 guiding of the 2nd guide rail.Drive sprocket 21,22 is arranged on stenter and exports 27 sides, and these sprocket wheels are driven in rotation by not shown driving mechanism, and driven sprocket 23,24 is arranged on stenter 26 sides that enter the mouth.
As Fig. 2～shown in Figure 4, clip 5 is made of gripper body 28 and guide rail installation portion 29.Gripper body 28 by clamper 31 and roughly コ word shape framework 32 constitute.This framework 32 possesses the base 32b that rotation is supported the installation shaft 32a of clamper 31 freely and carried the side edge part of polymer film 3.
Guide rail installation portion 29 is made of installation frame 35 and guide roller 36,37,38.The 1st chain 13 or the 2nd chain 14 are installed on the installation frame 35.Guide roller 36～38 is contacted with each supporting surface of drive sprocket 21,22, perhaps is contacted with the supporting surface of the 1st guide rail 11 or the 2nd guide rail 12 and rotates.Thus, gripper body 28 can not come off and along each guide rail 11,12 guiding from each sprocket wheel 21,22 or each guide rail 11,12.
As shown in Figure 1, dispose the known clip opener 41 of 2 relieving clips 5 near the drive sprocket 21,22 of stenter outlet 27.This clip opener 41 is contacted with head 31c, the 32c of clip 5 and this is set as the relieving state at the ejected position PB that controls of polymer film 3.By being set as the relieving state, decontrol controlling based on the side edge part of the polymer film 3 of clip 5.Rotate to the clamper 31 of ejected position by clip opener 41, continue to be positioned at the release position, clip 5 moves to Return-ing direction C towards controlling starting position PA from controlling ejected position PB under this state.
Dispose the known clip closer 42 of 2 closed clips 5 near the driven sprocket 23,24 of stenter inlet 26.This clip closer 42 is contacted with the head 31c of clip 5 and this is set as closure state at the starting position PA that controls of polymer film 3.By being set as closure state, control the side edge part of polymer film 3 by clip 5.Rotate to the clamper 31 of controlling the position by clip closer 42 and be positioned at and control the position, continue to move with the state of controlling polymer film 3.
In the clip tenter frame apparatus 2, PC begins the stretching of polymer film 3 in the stretching starting position, finishes the stretching of polymer film 3 at stretching end position PD.
As Fig. 2～shown in Figure 6, the clip 5 that moves along the 12d of outlet portion of the 2nd guide rail 12 is contained in the chamber, outlet 45, and the clip 5 that moves along the 12e of loop portion of the 2nd guide rail 12 is contained in the chamber, loop 46.
The space that chamber, outlet 45 constitutes for the top board 54a by central plate 51, top board 52, base plate 53 and the conduit 54 of the 2nd guide rail 12.The space of chamber, loop 46 for constituting by central plate 51, top board 52, base plate 53 and conduit 54.Chamber, outlet 45 and chamber, loop 46 are provided with in mutual air-locked mode, and chamber, loop 46 is by 54 one-tenth in conduit sealing state roughly.Equally, also be provided with chamber, outlet 45 and chamber, loop 46 on the 1st guide rail 11.
One side of conduit 54 is provided with the cold wind device 57 that the cooling air that is used to cool off clip 5 is blown.Be formed with air inlet 54b on conduit 54, described air inlet will be sent in the chamber, loop 46 from the cooling air of cold wind device 57 air-supplies.Cool off the clip 5 that in chamber, loop 46, moves along the 12e of loop portion by the cooling air that enters from this air inlet 54b in the chamber, loop 46.Enter the cooling air of cooling clip 5 in the chamber, loop 46, be vented to a side of conduit 54 from the exhaust outlet 54c that is formed on conduit 54.Air inlet 54b and exhaust outlet 54c are formed with a plurality of with predetermined pitch.
Chamber, outlet 45 and chamber, loop 46 are covered by outer cover 61.Outer cover 61 reaches down by last cover 61a, and cover 61b constitutes.Each outer cover 61a, 61b for fear of contact with polymer film 3 and polymer film 3 between the gap is set.
Between last cover 61a and chamber, outlet 45 and chamber, loop 46, be provided with the side that the air in the chamber, outlet 45 is vented to outer cover 61 on exhaust passage 62.Be provided with the following exhaust passage 63 that the air in the chamber, outlet 45 is vented to a side of outer cover 61 between 61b and chamber, outlet 45 and the chamber, loop 46 covering down.The height of each exhaust passage 62,63 is preferably 10mm～30mm.Equally, chamber, outlet 45 and the chamber, loop 46 that is arranged on the 1st guide rail 11 also covered by outer cover 61.
Each outer cover 61a, 61b are installed on the top board 54a or the base plate 53 of conduit 54 by a plurality of fixed parts 66.Between the top board 54a or base plate 53 of each outer cover 61a, 61b and conduit 54, on film direction of transfer A, a plurality of fixed parts 66 are set with predetermined pitch.In addition, omit the diagram of fixed part 66 among Fig. 2.
Manufacture method to above-mentioned polymer film 3 describes below.Wherein, below Xu Shu manufacture method and manufacturing installation are an example of the present invention, are not limited to this.
As shown in Figure 7, solution film-forming equipment 70 has dope 71, curtain coating chamber 72, pin tentering machine 73, clip tenter frame apparatus 2, hothouse 74, cooling chamber 75 and batches chamber 76.
Be provided with curtain coating mould 80, swing roller 81, casting belt 82, stripper roll 83 and pressure-reducing chamber 84 in the curtain coating chamber 72.Casting belt 82 moves around swing roller 81.Swing roller 81 is by drive unit (not shown) rotation.Towards the casting belt 82 that moves by the rotation of this swing roller 81 dope 71 that spues, and on casting belt 82, form casting films 85 from curtain coating mould 80.
Pressure-reducing chamber 84 relative curtain coating moulds 80 are disposed at the upstream side of cylinder direction of rotation, keep negative pressure in pressure-reducing chamber 84.Thus, the back side of curtain coating liquid pearl (being the face tangent with casting belt 82 afterwards) side is decompressed to the pressure of expectation, and reduces because of swing roller 81 influence of carrying wind that takes place of rotation at a high speed.
Set gradually transfering department 91, pin tentering machine 73 and clip tenter frame apparatus 2 in the downstream of curtain coating chamber 72.Transfering department 91 is directed into pin tentering machine 73 by transfer roller 92 with moistening film 88.Pin tentering machine 73 has a plurality of needle plates of the both ends maintenance that runs through moistening film 88, and this needle plate is advanced in orbit.During this is advanced, moistening film 88 is sent into dry wind, be dried, become polymer film 3 while moistening film 88 is advanced.This polymer film 3 is sent into clip tenter frame apparatus 2.
In clip tenter frame apparatus 2, polymer film 3 is dried when being stretched, and gives desired optical to the polymer film of sending from clip tenter frame apparatus 23.In addition, can after batching polymer film 3, carry out, at this moment also can omit clip tenter frame apparatus 2 from solution film-forming equipment 70 with off line by the action that stretching is given optical characteristics to polymer film 3.
Each downstream in pin tentering machine 73 and clip tenter frame apparatus 2 is provided with trimming device 93 respectively.The limit at trimming device 93 cutting film both ends.This limit that cuts out is sent into disintegrating machine 94 by air-supply and is pulverized therein, utilizes as the raw material of dope etc. again.
Be provided with a plurality of rollers 97 in the hothouse 74, by coiling polymer film 3 on these rollers and send and carry out drying.Be connected with absorbing recovery device 98 on the hothouse 74, absorption is reclaimed from the solvent of polymer film 3 evaporations.
The outlet side of hothouse 74 is provided with cooling chamber 75, and in this cooling chamber 75, polymer film 3 is cooled to room temperature.Batch and be provided with the coiling machine 101 with pressure roller 102 in the chamber 76, polymer film 3 batches at volume in the heart with the roller shape.
In the present embodiment, use cellulose acylate as polymer.As cellulose acylate, can enumerate Triafol T (TAC) or cellulose diacetate (DAC).
[embodiment 1]
In solution film-forming equipment 70 shown in Figure 7, curtain coating dope 71 on the surface of casting belt 82 and form casting films 85.Peel off when supporting casting films 85, obtain moistening film 88 with self-supporting by stripper roll 83.
In pin tentering machine 73, near its inlet after the both side ends of moistening film 88 is inserted pin and maintenance, be that the moistening film 88 of 95 quality % carries out drying and as polymer film 3 to remaining solvent amount.
Solvent in pin tentering machine 73 in the removal film after the both side ends with trimming device 93 cutting polymer films 3 that are arranged on the downstream, is sent polymer film 3 into clip tenter frame apparatus 2 to ormal weight.
If polymer film 3 is sent to and controls starting position PA in the clip tenter frame apparatus 2, then the head 31c of the clamper 31 of clip 5 is contacted with clip closer 42 and rotates to and control the position, thereby controls the both side edges portion of polymer film 3.Rotating to the clamper 31 of controlling the position by clip closer 42 continues to be positioned at and controls the position and move with the state of controlling polymer film 3.
The clip 5 that makes the both side ends of controlling polymer film 3 moves in chamber, outlet 45 and transmits polymer film 3 along each 11d of outlet portion, 12d of the 1st, the 2nd guide rail 11,12.When carrying out this transmission, 140 ℃ the hot blast that adds is blown towards polymer film 3 from heater 16.Polymer film 3 stretches to film width B to be heated the wind heated state when film direction of transfer A transmits.When the width of the polymer film 3 before stretching was made as 100%, the extensibility among the drawing zone 2b was made as 120%.Flow in the chamber, outlet 45 from the gap of polymer film 3 from the hot blast that adds of heater 16, the clip 5 that moves in chamber, outlet 45 is heated with outer cover 61 towards polymer film 3 air-supplies.
If clip 5 moves to and controls ejected position PB, then head 31c, 32c are contacted with clip opener 41 and clamper 31 rotates to ejected position, decontrol controlling of polymer film 3.The clamper 31 that rotates to ejected position by clip opener 41 continues to be positioned at ejected position, moves to Return-ing direction C in chamber, loop 46 towards controlling starting position PA at clip 5 under this state.
Flow into from the gap of polymer film 3 and outer cover 61 in the chamber, outlet 45 add hot blast contact clip 5 and temperature is declined to become Cryogenic air.Exhaust passage 63 was vented to a side of outer cover 61 under Cryogenic air in the chamber, outlet 45 reached by last exhaust passage 62.
After the both side ends with trimming device 93 cutting polymer films 3 in the downstream that is arranged at clip tenter frame apparatus 2, in hothouse 74, be wound in a plurality of rollers 97 and transmit during, fully impel the drying of polymer film 3.Cooling polymer film 3 is sent into to the room temperature roughly and is batched chamber 76 in cooling chamber 75, batches at volume in the time of with pressure roller 102 extruding and obtains roller shaped polymer film 3 in the heart.
Among the embodiment 1, use the clip tenter frame apparatus 2 that exhaust passage 62 and following exhaust passage 63 are set to carry out the stretching of polymer film 3.And, right with the thermocouple that is attached at polymer film 3 surfaces, near the temperature polymer film 3 side edge parts (℃) measure with respect to the variation from the distance of stenter inlet 26, measurement result is shown in Fig. 8.
Implement following comparative example 1 at this embodiment 1.In this comparative example 1, cover clips 5, but utilize the clip tenter frame apparatus in the past (with reference to Figure 10 and Figure 11) that is not provided with exhaust passage and following exhaust passage to carry out identical experiment with outer cover 111.
In comparative example 1 as can be known, with the part consistent location of no heater 16, film temperature is lower than heating wind-warm syndrome degree.Can find following reason thus and visualize the countermeasure of embodiment 1, promptly than add hot blast more the object of low temperature impact, the air that promptly enters the inboard of outer cover 61a, 61b and carry out heat exchange with the clip 5 of low temperature is contacted with polymer film 3 side edge parts from the part adverse current of no heater 16.
Relative therewith, in embodiment 1, suppressed to descend as the temperature in the part of the no heater 16 of comparative example 1.Carried out stretching experiment, the result is in comparative example 1, and the temperature that takes place 22 ℃ relatively in the side edge part of the central part side of polymer film 3 descends, but in embodiment 1, temperature can be descended and suppress to 10 ℃.Its result, oppose side edge portion does not stretch fully in comparative example 1, side edge part can't be used as product in the polymer film 3 after the stretching.Therefore, need the excision side edge part, polymer film 3 can be narrowed down than embodiment 1 as the width that product uses.But, among the embodiment 1, descend by suppressing temperature, need the width of the side edge part of excision to narrow down than comparative example 1, enlarge the width that can use as product thus, thus can with product loss relatively example 1 be reduced to 55%.In addition, repeatedly test, obtain identical experimental result with the condition identical with embodiment 1 and comparative example 1.
In addition, will with emulation near the Temperature Distribution polymer film 3 side edge parts among the embodiment 1 (℃) estimate the results are shown in Fig. 9.The central part that the part FA that represents with oblique line of polymer film 3 ends is illustrated in temperature ratio copolymer film 3 among Fig. 9 descends more that film temperature in the temperature decline zone more than 2 ℃ descends and the scope that can't use as product.Among the embodiment 1, add hot blast is vented to outer cover 61 by each exhaust passage 62,63 a shown in Figure 2 side.Therefore, the temperature that suppresses polymer film 3 side edge parts is by contact with outer cover 61a, 61b or inboard by entering outer cover 61a, 61b and the air inversion that becomes low temperature are contacted with polymer film 3 side edge parts and descend.Its result can significantly subdue and take place that Yin Wendu in polymer film 3 side edge parts descends and the amount of the film that can't use as product of the phenomenon that can't fully stretch.In addition, among Fig. 9, the temperature regional FA that descends has been described in exaggeration, but is actually minimum to the make a difference zone of degree of stretching that can not oppose side edge portion.
On the one hand, will with emulation to the temperature of the 3 side edge part annexes of the polymer film in the clip tenter frame apparatus in the comparative example 1 (℃) estimate the results are shown in Figure 10.The central part that the part FA that represents with oblique line of polymer film 3 ends is illustrated in temperature ratio copolymer film 3 among Figure 10 descends more that film temperature in the temperature decline zone more than 2 ℃ descends and the scope that can't use as product.As shown in figure 11, in the comparative example 1 that is not provided with the exhaust passage, jetting to the hot blast that adds of polymer film 3 contacts with outer cover 111, perhaps enters the inboard of outer cover 111 and becomes the air inversion of low temperature and be contacted with polymer film 3 side edge parts.Therefore, can confirm that temperature can descend in the wide scope of polymer film 3 side edge parts.Its result can find to occur in a large number Yin Wendu in polymer film 3 side edge parts and descend and can't stretch fully and the reason of the film that can't use as product.In addition, software, the interchangeable heat fluid analysis program STAR-LT that the Japanese CD-adapco of use Co., Ltd. makes in the emulation.
In addition, among the embodiment 1, the Cryogenic air in the chamber, outlet 45 reaches the side that following exhaust passage 63 is vented to outer cover 61 by up and down last exhaust passages of using 62 of chamber, break-through loop 46 more.Therefore, each exhaust passage 62,63 insulations of passing through according to the Cryogenic air of steady temperature of chamber, loop 46.Thus, the temperature in the chamber, loop 46 is held in constant, cools off the clip 5 that moves in chamber, loop 46 really.
In addition, as shown in figure 12, the upper and lower settings exhaust fan 121 in outer cover 61, also can be by this exhaust fan 121 with the Cryogenic air in the chamber, outlet 45 by last exhaust passage 62 and exhaust passage 63 and be vented to a side of outer cover 61 forcibly down.At this moment, on film direction of transfer A, a plurality of exhaust fans 121 are set with a constant pitch.
[the 2nd embodiment]
In the clip tenter frame apparatus 202 of the 2nd embodiment of Figure 13～shown in Figure 16, in conduit 204, set and have family 208.In addition, the additional identical symbol of the component parts identical with the 1st embodiment is omitted its detailed description.
As Figure 13～shown in Figure 16, the space that chamber, outlet 205 constitutes for the top board 204a by central plate 51, top board 52, base plate 53 and the conduit 204 of the 2nd guide rail 12.The space of chamber, loop 206 for constituting by central plate 51, top board 52, base plate 53 and conduit 204.Chamber, outlet 205 and chamber, loop 206 are provided with in mutual air-locked mode, and chamber, loop 206 is by 204 one-tenth in conduit sealing state roughly.Equally, also be provided with chamber, outlet 205 and chamber, loop 206 on the 1st guide rail 11.
Side at conduit 204 is provided with the cold wind device 57 that cooling air is blown.The side of conduit 204 is formed with from the air inlet 204b that cooling air entered of blower 57 air-supplies.Be provided with the chamber 208 of the nozzle 208a with winding-up cooling air in the chamber, loop 206.This nozzle 208a form to film direction of transfer A extend slot-shaped, simultaneously towards the handle part 31b and the base 32b winding-up cooling air of a plurality of clips 5.Chamber 208 is installed on the inner face of conduit 204, becomes roughly sealing state (part of skipping nozzle 208a is a sealing state) in the chamber 208.By cooling air, handle part 31b and base 32b along the 12e of loop portion mobile clip 5 in chamber, loop 206 are cooled off with the exact position from nozzle 208a winding-up.Be vented to a side of conduit 204 from the exhaust outlet 204c that is formed at conduit 204 from the cooling air of nozzle 208a winding-up.This exhaust outlet 204c be arranged on serpentine canal 218 near.
Chamber, outlet 205 and chamber, loop 206 are covered by outer cover 211.Outer cover 211 reaches down by last cover 211a, and cover 211b constitutes.Each outer cover 211a, 211b for fear of contacting with polymer film 3 and polymer film 3 between the gap is set.
A plurality of outer covers 211 link by deformable serpentine canal 218.Serpentine canal 218 is provided with a plurality of, in these a plurality of serpentine canals 218, be provided in from the 1st line part 12a of the 2nd guide rail 12 to the serpentine canal of the switching part of rake 12b and from rake 12b to the angle of inclination distortion of the serpentine canal of the switching part of the 2nd line part 12c, so that outer cover 211 sets with the angle of inclination according to rake 12b according to rake 12b.Equally, covering the chamber, outlet 205 of the 1st guide rail 11 and a plurality of outer covers 211 of chamber, loop 206 is also linked by a plurality of serpentine canals 218.
[embodiment 2]
In solution film-forming equipment 220 shown in Figure 17, curtain coating dope 71 on the surface of casting belt 82 and form casting films 85.Peel off when supporting casting films 85, thereby obtain moistening film 88 with self-supporting by stripper roll 83.
In pin tentering machine 73, after the both side ends of moistening film 88 is inserted pin and kept, be that the moistening film 88 of 95 quality % carries out drying and as polymer film 3 to remaining solvent amount in its inlet vicinity.
Solvent in pin tentering machine 73 in the removal film after the both side ends with trimming device 93 cutting polymer films 3 that are arranged on the downstream, is sent polymer film 3 into clip tenter frame apparatus 202 to ormal weight.
If polymer film 3 is sent to and controls starting position PA in the clip tenter frame apparatus 202, then the head 31c of the clamper 31 of clip 5 is contacted with clip closer 42 and rotates to and control the position, thereby controls the both side edges portion of polymer film 3.
Make the clip 5 of the both side ends of controlling polymer film 3 along each 11d of outlet portion of the 1st, the 2nd guide rail 11,12,12d moves and transmit polymer film 3, and with 140 ℃ add hot blast from heater 16 towards polymer film 3 air-supplies.Polymer film 3 stretches to film width B to be heated the wind heated state when film direction of transfer A transmits.When the width of the polymer film 3 before stretching was made as 100%, the extensibility among the drawing zone 2b was made as 120%.Flow in the chamber, outlet 205 from the gap of polymer film 3 from the hot blast that adds of heater 16, the clip 5 that moves in chamber, outlet 205 is heated with outer cover 211 towards polymer film 3 air-supplies.
Only handle part 31b and the base 32b that polymer film 3 is contacted cooled off with the exact position by nozzle 208a, thereby can fully cool off with the cooling air of comparing less air quantity with the situation of cooling clip 5 integral body.Thus, suppress the pressure rises in the chamber, loop 206, and suppress to come the air of self-loop chamber 206 to leak.
The cooling air that has cooled off handle part 31b and base 32b is vented to a side of conduit 204 from the exhaust outlet 204c that is formed at conduit 204.
Flow into from the gap of polymer film 3 and outer cover 211 in the chamber, outlet 205 add that hot blast contacts with clip 5 and temperature is declined to become Cryogenic air.Chamber, outlet 205 and chamber, loop 206 are airtight mutually, so Cryogenic air can not flow in the chamber, loop 206, and it is constant that the temperature in the chamber, loop 206 keep.
Both side ends by trimming device 93 cutting polymer films 3 in the downstream that is arranged at clip tenter frame apparatus 202.Afterwards, in hothouse 74, be wound on a plurality of rollers 97 and transmit during, fully impel the drying of polymer film 3.Cooling polymer film 3 is delivered to the room temperature roughly and is batched chamber 76 in cooling chamber 75, batches at the volume heart in the time of by pressure roller 102 extruding and obtains roller shaped polymer film 3.In addition, with voltage before batching by forcing neutralizer 99 to be adjusted, and give roller 100 by annular knurl and give annular knurl.
Among the embodiment 2, use the clip tenter frame apparatus 202 that chamber 208 is set to carry out the stretching of polymer film 3.Among this embodiment 2, the air inlet 204b by conduit 204 sends into 40 ℃ cooling air in the chamber 208 from cold wind device 57, and the air pressure in the chamber 208 are made as 2.5kPa, from the nozzle 208a of the 5mm height cooling air to handle part 31b and base 32b winding-up 20m/s.And, in the polymer film 3 by 202 stretchings of clip tenter frame apparatus, to the delay in a plurality of width positions (nm).Below measuring, embodiment 2 implements comparative example 2 relatively.In this comparative example 2, chamber 208 is not set, in the time of cooling clip 5 integral body, uses the clip tenter frame apparatus in the past that possesses the conduit that exhaust outlet is set in the position away from serpentine canal to carry out identical experiment.In this comparative example 2, the air inlet by conduit is sent into 40 ℃ cooling air (air feed of cooling air is pressed (air pressure in the conduit)=2kPa) to the loop is indoor with 10m/s from the cold wind device.This experimental result is shown in Figure 18.
This result of experiment, the air pressure among the embodiment 2 in the chamber 208 are 2.5kPa, are in a ratio of high pressure with comparative example 2, but do not have the such linking part of serpentine canal 218, sealed inside easily in the chamber 208.Thus, can suppress to leak from the air of chamber 208.In addition, by cooling air from nozzle 208a winding-up, only handle part 31b and base 32b are cooled off with the exact position, therefore the wind speed by the cooling air in the conduit 204 can be made as the low speed of 2m/s, suppress to leak from the air of conduit 204 and serpentine canal 218.And, since with the exhaust outlet 204c of conduit 204 be arranged on serpentine canal 218 near, so the air pressure in the serpentine canal 218 descend, and suppress to leak from the air of serpentine canal 218.Its result, air quantity according to the air that flows to product from clip portion reduces the effect that rises with temperature, the temperature that suppresses the product end descends, compare with comparative example 2 can be with the difference that postpones the following (⊿ of 4nm postpone≤4nm) and can significantly be increased to 1.67 times to polymer film 3 as the rate that draws of product.In addition, because can be with air quantity from 100m
3/ min significantly is reduced to 18m
3Therefore/min can realize that product draws the significantly raising of rate, and can also realize using the significantly reduction of energy.
In the comparative example 2, because the air pressure of catheter interior up to 2kPa, therefore takes place in a large number to leak from the conduit that this anticyclonic cooling air passed through or the air of serpentine canal.And the exhaust outlet of conduit is away from serpentine canal, so the air pressure in the serpentine canal do not descend, and a large amount of air leakages from serpentine canal takes place.Its result becomes that to cause 3 temperature of polymer film to descend can be as the rate that draws that product uses low and the such problem of a large amount of product loss takes place because of the air contact polymer film that leaks from conduit or serpentine canal.In addition, carried out repeatedly experiment, drawn identical result with the condition identical with embodiment 2 and comparative example 2.
In addition, also can be made as shown in figure 19 form.That is, by last cover 251a and down cover 251b constitute the outer cover 251 that covers chamber, outlet 205 and chamber, loop 206, last cover be provided with between 251a and chamber, outlet 205 and the chamber, loop 206 side that the air in the chamber, outlet 205 is vented to outer cover 251 on exhaust passage 252.The following exhaust passage 253 that air in the chamber, outlet 205 is vented to a side of outer cover 251 is set covering down between 251b and chamber, outlet 205 and the chamber, loop 206.In addition, preferably the height of each exhaust passage 252,253 is 10mm～30mm.Equally, being arranged at the chamber, outlet 205 of the 1st guide rail 11 and chamber, loop 206 is also covered by outer cover 251.
In addition, implemented the present invention in the clip tenter frame apparatus in the present embodiment, but also can implement the present invention at pin stenter.
Claims (9)
1. film stretching device is characterized in that possessing:
Pair of guide rails has outlet portion and loop portion;
Heater heats film;
A plurality of parts of controlling, stretch by the described film of described heater heating to width when controlling the both side edges portion of described film, described a plurality of parts of controlling move and carry out described stretching along the outlet portion of described guide rail, and described a plurality of parts of controlling are decontroled the outlet portions that move and return described guide rail after the controlling of described film along the loop portion of described guide rail;
The chamber, outlet holds the described parts of controlling that move along the outlet portion of described guide rail;
The chamber, loop holds the described parts of controlling that move along the loop portion of described guide rail, and chamber, described loop is to be provided with in mutual air-locked mode with chamber, described outlet;
The cold wind device is blown to cooling air, and described cooling air is to the indoor mobile described parts of controlling cool off in described loop; And
Flow into anti-locking mechanism, prevent than the both side edges portion that the lower Cryogenic air of hot air temperature flows into described film that adds by described heater heating.
2. film stretching device as claimed in claim 1 is characterized in that,
Further possesses outer cover, described outer cover covers chamber, described outlet and chamber, loop, the anti-locking mechanism of described inflow is made of the exhaust passage, described exhaust passage is separately positioned on the top of chamber, described outlet and chamber, described loop and below promptly and between the described outer cover, contact after indoor and describedly control parts and temperature when being declined to become Cryogenic air when go into described outlet by the heated air flow of described heater heating, described Cryogenic air is vented to a side of described outer cover.
3. film stretching device as claimed in claim 2 is characterized in that,
In described outer cover, be provided with the exhaust apparatus of described Cryogenic air towards the air-supply of described exhaust passage.
4. film stretching device as claimed in claim 2 is characterized in that,
Further possess and make the roughly conduit of sealing state of the indoor one-tenth in described loop, described conduit has air inlet and exhaust outlet, it is indoor that described air inlet will be sent into described loop from the cooling air of described cold wind device air-supply, and described exhaust outlet carries out exhaust to cooling off described cooling air of controlling behind the parts.
5. film stretching device as claimed in claim 1 further possesses: a plurality of outer covers cover described parts and the guide rail of controlling; And link parts, and link described a plurality of outer cover, it is characterized in that,
Described pair of guide rails is made of outlet portion and loop portion, and described outlet portion and loop feature do not have the rake to the direction of transfer inclination of the line part of the direction of transfer extension of described film and relative described film,
The described parts of controlling are made of the clip with framework and clamper, described framework has the base of the side edge part that carries described film, described clamper displacement is installed in freely on the described framework and carries out displacement between position and the ejected position controlling, described control the position for and described base between control the position of described film, described ejected position is for decontroling the position of controlling
Described binding parts set with the angle of inclination according to described rake so that cover the outer cover of described rake in described a plurality of outer cover according to the angle of inclination distortion of described rake,
The anti-locking mechanism of described inflow have make the indoor one-tenth in described loop roughly sealing state conduit and be installed on chamber in the described conduit with sealing state roughly,
The corresponding described a plurality of outer covers of described conduit are provided with a plurality of, have from the air inlet that cooling air entered of described cold wind device air-supply and exhaust outlet that the cooling air that cools off behind the described clip is carried out exhaust,
The described respectively a plurality of conduits in described chamber are provided with a plurality of, and has a slit-shaped nozzle, described nozzle is towards the described base of parts and the described cooling air that the clamper winding-up enters from described air inlet of controlling, and described chamber is to be communicated with described air inlet and to be arranged on the described conduit with the mutual disconnected mode of described exhaust outlet.
6. film stretching device as claimed in claim 5 is characterized in that,
Described exhaust outlet be arranged on described binding parts near.
7. film drawing process is characterized in that possessing following steps:
A, stretch by the described film of heater heating to width, this stretching by make the both side edges portion of controlling film a plurality of control parts along the outlet portion of pair of guide rails in the outlet indoor moving carry out;
B, make decontrol described film control described a plurality of control parts in the loop the indoor outlet portion that moves and return described guide rail, described a plurality of parts of controlling move and return described outlet portion along the loop portion of described guide rail, and chamber, described loop is to be provided with in mutual air-locked mode with chamber, described outlet;
C, cooling air is blown, described cooling air is to the indoor mobile described parts of controlling cool off in described loop;
D, prevent that temperature is than the both side edges portion that the lower Cryogenic air of hot-air flows into described film that adds by the heating of described heater.
8. film drawing process as claimed in claim 7 is characterized in that,
In the described D step, go into described outlet by the heated air flow of described heater heating and contact after indoor and describedly control parts and temperature when being declined to become Cryogenic air, with described Cryogenic air from respectively above chamber, described outlet and the chamber, loop and below promptly and cover the side that the exhaust passage that is provided with between the outer cover of chamber, described outlet and chamber, loop is vented to described outer cover.
9. film drawing process as claimed in claim 7 is characterized in that,
Described pair of guide rails is covered by a plurality of outer covers with the described parts of controlling that are made of clip, described pair of guide rails is made of described outlet portion and described loop portion, described outlet portion and loop feature do not have the rake to the direction of transfer inclination of the line part of the direction of transfer extension of described film and relative described film, described clip has framework and clamper, described framework has the base of the side edge part that carries described film, displacement be installed in freely on the described framework described clamper with described film and described base between control control the position and decontrol between the ejected position control and carry out displacement, described a plurality of outer cover is set as the state of a plurality of binding parts bindings of being out of shape by the angle of inclination according to described rake, set with angle of inclination so that cover the described outer cover of described rake according to described rake
Described cooling has air inlet and exhaust outlet, undertaken by sending into described cooling air to the described air inlet of a plurality of conduits of the described a plurality of outer cover settings of correspondence,
Preventing of described inflow by the described base of controlling parts that moves towards loop portion from the slit-shaped nozzle that is arranged on a plurality of chambers and the clamper described cooling air of jetting along described guide rail, and the cooling air that cools off behind the described clip from described exhaust outlet exhaust carries out, and described a plurality of chambers are respectively with sealing state roughly and to be communicated with described air inlet and to be installed on described a plurality of conduit with the mutual disconnected mode of described exhaust outlet.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-057790 | 2010-03-15 | ||
| JP2010057789A JP5362625B2 (en) | 2010-03-15 | 2010-03-15 | Film stretching apparatus and method |
| JP2010057790A JP5362626B2 (en) | 2010-03-15 | 2010-03-15 | Film stretching apparatus and method |
| JP2010-057789 | 2010-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102189677A true CN102189677A (en) | 2011-09-21 |
Family
ID=44598955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100638038A Pending CN102189677A (en) | 2010-03-15 | 2011-03-14 | Film stretching device and method thereof |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20110103864A (en) |
| CN (1) | CN102189677A (en) |
| TW (1) | TW201130638A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070668A (en) * | 2013-03-28 | 2014-10-01 | 富士胶片株式会社 | Method of manufacturing optical film |
| CN108722802A (en) * | 2018-08-07 | 2018-11-02 | 苏州利通印刷有限公司 | A kind of use for electronic products label corrosion protected treatment device |
| CN115502149A (en) * | 2022-11-10 | 2022-12-23 | 江苏康辉新材料科技有限公司 | Device for improving surface quality of film surface edge part |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441987B (en) * | 2011-09-19 | 2013-11-27 | 桂林电器科学研究院有限公司 | Chain clip cooling device for film producing machine |
-
2011
- 2011-03-10 KR KR1020110021383A patent/KR20110103864A/en not_active Application Discontinuation
- 2011-03-14 TW TW100108512A patent/TW201130638A/en unknown
- 2011-03-14 CN CN2011100638038A patent/CN102189677A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070668A (en) * | 2013-03-28 | 2014-10-01 | 富士胶片株式会社 | Method of manufacturing optical film |
| CN104070668B (en) * | 2013-03-28 | 2017-09-01 | 富士胶片株式会社 | The manufacture method of optical thin film |
| CN108722802A (en) * | 2018-08-07 | 2018-11-02 | 苏州利通印刷有限公司 | A kind of use for electronic products label corrosion protected treatment device |
| CN108722802B (en) * | 2018-08-07 | 2023-08-01 | 苏州利通印刷有限公司 | Label anti-corrosion treatment device for electronic product |
| CN115502149A (en) * | 2022-11-10 | 2022-12-23 | 江苏康辉新材料科技有限公司 | Device for improving surface quality of film surface edge part |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201130638A (en) | 2011-09-16 |
| KR20110103864A (en) | 2011-09-21 |
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Application publication date: 20110921 |