• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Cooling apparatus for tubular plastics film extruded from a film blow head includes an outer cooling ring which surrounds the extruded tubular film and defines an annular nozzle gap with a blowing direction substantially parallel to the wall of the tubular film. Near the end of a cooling section formed by an inner cooling ring beneath the inflated region of tubular film, there is an apertured baffle plate or diaphragm of which the axial projection onto the film bubble covers at least its interior inflated region and, together with the wall of the tubular film, bounds an annular gap.
    公开号:SU1500148A3
    申请号:SU843794610
    申请日:1984-09-28
    公开日:1989-08-07
    发明作者:Упмайер Хартмут
    申请人:Виндмеллер Унд Хельшер (Фирма)；
    IPC主号:
    专利说明:

    4 00
    The invention relates to an air-cooled cooling device with a building for a plastic film sleeve and can be used in the chemical industry.
    The purpose of the invention is to increase the device performance.
    FIG. 1 shows a cooling device (device, longitudinal section, on
    FIG. 2 - internal cooling ring-) tso, longitudinal section
    The film sleeve cooling device comprises coaxially arranged axially and passing through the blow head 1 for the film of the pipe. 2 and 3 for the supply of cooling and inflation air and its output from the inflated film sleeve,
    13
    P (1Мо: + ;; mpy | n.:t. 1С С 1-ОНАИИИ хЧРГГ FROM DRU1М f; i И | 1; и ёч1 and эст1) at ip -ja colpoi, 111.1 4) X, yt.ori The 1 KOHts (.H) pirMiif::) is shorter, and the 1th anomalous pleiomus () uk; 1 chi ne ugren ohla adatotds xxxch ts 5 s. reversible to the wall of the rukva iairav.ichknii.chi surfaces 6, which) .1Ы and gfo / july section of the internal ji and w ithly to about oj js la 5 b yp at kj i о and z og and ut ((For passing through luiw, para.placially or at ocTpbJNt angle to the wall of the film sleeve of the cooling air from the annular nozzle slots 7 formed by the internal cooling 5 and the nozzle 8 rings placed in the direction of the flow of cooling air in front of the internal cooling rings. 5, The device is equipped with a size- | 1е1П1ЫМ in -.- iOBe at the annular nozzle 4 of the I inflating head 1 with an external cooling-; ring 1 to 1 to cover an extruded foam sleeve with an annular nozzle slot 10 with a straight line, a steam surface of the film sleeve, and a coolant at the end of the section is cooled, and, below the inflation zone of the film sleeve, is reflective an element in the form of an iris diaphragm 11 with a central opening that is adjustable in diameter to cover the film film 11 and form an annular slit 12 with its outer surface. At the same time, the reflective element is mounted with at least an axial projection and blown up) the film sleeve of its inner bulge zone and is installed at a height AND of the upper rent cooling ring 5. The blow head I has a connecting flange connection 13 for communication with a tool (not shown) and a circular channel 14 for the melt. At the height of the L line of curing foam on the outer side of the film sleeve, means 15 are installed to calibrate the film with supporting elements 16. Pipe 2 is located in the center of the blow head 1 and, together with pipe 3, forms a circular bearing 7 from the blower (not shown) cooling air through the pipeline 18. Internal coolant to (1. luca 5 are connected
    friend with each other pipes 19 Conjioi o. the ring In ppyspnens. in the form of pre.sh.-la. Iris; |} Rgmp 11 is set to -strong-g (iiif 2 (}, i, oTin, 4, i; i Ghlch i ml484
    with the racks 21 oniratschas on the outer (cooling ring 9 for adjusting the reading height.
    In operation, the molten part of the mass is fed to the side of the extruder through the add-on flag 1 (ninth connection
    13c blow-head casing 1 lp extension of film with annular channel
    14dl melt. An annular nozzle 4 of the head 1 for the uppering of the ayenka forms a film sleeve 22, which, to a height H equal to at least five times the diameter of the annular nozzle 4, retains a cylindrical shape. Film sleeve 22 in the zone of the uppermost cooling / rolling ring
    5 passes through the opening of the iris diaphragm 11 and immediately thereafter is stretched in a short roll, the outer expansion zone 23 to the full diameter of the blown film sleeve 24. The film sleeve 22, blown up to the blown film sleeve 24, immediately afterwards is laid, stretched and is thrown
    At the height of the film hardening line A, on the outer side of the expanded film sleeve 24, means 15 are mounted for capillating the film with supporting elements 16.
    A through hole is made in the center of the side of the blown head 1 for extracting the film — a pipe 2 forming together with a pipe 3 a concentric annular channel 17 into which cooling air is blown from the blower in the direction of the arrow 25. The cooling air flows from the annular channel 17 through cooling pipes 19 air into the internal cooling rings 5, located one above the other in the form of floors at some distance from each other and connected to each other by pipes 19. The internal cooling rings 5 have such an air its dynamic profile naprash1Yayuschz; 1X surfaces that they create a radially inwardly directed suction effect on m gkoplastichny film sleeve 22.
    The inner cooling ring 5 (Fig. 2) on the side facing the inner wall of the extruded film sleeve 22 ,. has an air guide surface 6, convexly curved in the form of a side
    syvyan wing aircraft. In the direction of the cooling air flow, in front of the air guide ring 5, a nozzle ring 8 is installed in the forms of a pre-cover that overlaps the front end of the air guide ring 5 and forms with it an annular slot 7 directed along the surface of the cooling wing made in the form of a bearing wing. rings 5 and at an acute angle to the wall of the film sleeve. The cooling zone of the internal cooling ring 5 with the nozzle ring 8 in the form of a slat is marked with a three-dotted limiting line 26 and basically corresponds to the surface of the aircraft supporting wing with the Junkers slider.
    The main air flow is blown out from the nozzle slot 7 between the ring B in the form of a pre-blade and the guide air by the ring 5, and it acts stabilizingly on the finished film sleeve 22 on the basis of the suction effect caused by its high speed. With respect to the film sleeve 22, the cooling ring 5 with the nozzle ring 8 in the shape of a pre-plate has a design in the form of an annular wing.
    Due to the injection effect of the air jet 27 above the nozzle ring 8 in the form of a slat, additional air flow 28 is sucked in, helping to cool (the sleeve) and direct the air.
    According to the principle of the carrier wing, the cooling air flows in the direction of the arrows 29 at the end of the cooling surface 6 directed towards the air
    ring 5 with negligible turbulence In the proposed cooling device, it is possible to use external de, cooling ring 9 with incoming cooling air flow from it at high speed along the long slender neck of the film sleeve. Despite the turbulence that arises, this sharp flow of external cooling air cannot damage the plastic film sleeve because it is stabilized by having a special profile and located in the form of floors one above the other by internal cooling, Conductive under vacuum, the air flow 30 is free from turbulence and directs with the flow direction and flows as an air jet 31 along the cooling air direction.
    External cooling of the film is carried out with the help of an external cooling ring 9, into which, from the blower, external cooling air is supplied from the blower 32 to the direction of the arrow 32, leaving the external cooling ring 9 along the exit slit 10 in the form of a sharp air stream 33. concentric and parallel to the cylindrical film sleeve 22.
    55
    giving rings 5, providing a suction effect on the film sleeve, directed radially (5 inside.
    five
    0
    At the height of the highest vut-. The outer cooling ring 5 is fitted with the holder 20 of the iris diaphragm 11, which is supported on the outer cooling ring 9 by the posts 21. sleeve in expansion zone 23. The main part of the external cooling air 33 is deflected by the iris diaphragm 11 in the direction of the arrows 35 radially outward.
    After passing through the internal cooling ring 5, the heated internal cooling air enters the inflated film sleeve 24 and is sucked through the central tube 3 by a fan to increase the heat removal rate.
    When the device is started up to obtain film sleeves by blowing to draw out the beginning of the film sleeve, the iris diaphragm 11 can be fully opened. Depending on the performance of the extruder or the winding speed of the film, the iris diaphragm 11 is closed to such an extent that a sufficient amount of residual cooling air can pass through the annular gap to cool the expansion zone 23. To match the iris diaphragm 11 with performance
    or, with a coiling speed, also d may change its height above the annular nozzle 4.
    five
    0
    five
    de 50
    55
    giving rings 5, providing a suction effect on the film sleeve, directed radially (5 inside.
    Acute air inlet air of the cooling air can not be damaged by the bloated 2D sleeve hose, because it passes in the diaphragm 1 1, which discharges the main air flow outwards and allows air to pass through. for cooling, which increases cooling efficiency and improves device performance.
    Thus, the invention makes it possible to produce thin blown tubular films of high density polyethylene of the type similar to paper. The extruded film sleeve, after passing through the cooling section in which it is shaped like a bottle neck, with a diameter corresponding to the annular nozzle slit, is inflated to a swollen film sleeve, the diameter of which approximately corresponds to four times the diameter of the annular nozzle for extrusion. Based on the expansion of the film sleeve with a ratio after the inflation of approximately 1: 4, the film strength is significantly increased by stretching in the longitudinal and transverse directions.
    With an inflatable tubular film of low density polyethylene and iiecKOJlbKo of increased density, a significant increase in strength can be achieved if the silk film sleeve along the cooling section in which it has a bottle neck shape is stretched in the longitudinal direction and immediately thereafter inflated with a large ratio diameters.
    For this, it is necessary to use annular nozzles for extrusion with nozzles having a correspondingly reduced diameter. However, if the diameter of the concave slot is reduced and thus the diameter of the extruded film sleeve, a reduced amount of heat is removed from it in the area of the bottle neck. Thus, a large ratio of the bulge is mozhggg, otiratats to.a. Ko with one-time increase in production | -l by heat removal in: it is lower than the inferior pyKaF; .i,
    UricinpeTiMtiiie i (o4iKV HeT is available at the IP;; ii; T, the internal transfusion code is internal

    0 5 o
    five
    0
    five
    0
    five
    An oxJI e-film sleeve without being disturbed by its air flow, t, .e, provides the necessary degree of expansion, which increases the strength of the film.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A cooling device for a film sleeve extruded from a film blow head containing coaxially arranged and axially passing tubes through the blow head for supplying cooling and separating air and withdrawing it from the inflated film sleeve disposed apart from one another. extrusion of the blow-ring annular nozzle. centered on the extruded film sleeve; internal coolant rings with guide surfaces facing the The longitudinal sections of the internal cooling ring are convexly curved to pass along them parallel or at an acute angle to the wall of the film sleeve of cooling air from the annular nozzle slots formed by internal cooling and nozzle rings spaced in the direction of cooling air flow in front of internal cooling) : with rings, the device being c-packed with an outer cooling ring to cover the extruded film sleeve with an annular nozzle slit with a direction parallel to the direction of of the film sleeve, and placed at the end of the cooling section below the inflating zone of the film sleeve by a reflective element with a central opening to extend the film sleeve and forming an annular gap with its outer surface, the barrier element being at least overlapped in the axial projection on the inflated film sleeve of its inner bulging zone, characterized in that, in order to increase the capacity, the outer cooling ring is located in a hopper located at the annular nozzle and the blow head, and the reflective element is designed as an iris diaphragm and is set at the height of the upper inner cooling ring.
    32
    /five
    73
    78
    / 7 /
    2)
    Editor O. Yurkovetska
    Compiler L. Koltsova Tehred L. Oliynyk,.
    Order 4712/58
    Circulation 535
    VNISh of the State Committee on Inventions and Discoveries at the State Committee on Science and Technology of the USSR. 113035, Moscow, Zh-35, Raushsk nab. 4/5
    V
    Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101
    Fi2,2
    Proofreader S. Shekmar
    Subscription
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    同族专利:
    公开号 | 公开日
    US4601649A|1986-07-22|
    GB8424002D0|1984-10-31|
    JPS60143930A|1985-07-30|
    GB2147247B|1986-10-08|
    CA1223412A|1987-06-30|
    FR2552708B1|1987-07-03|
    DE3335334C2|1986-01-30|
    FR2552708A1|1985-04-05|
    JPH043732B2|1992-01-24|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3265789A|1960-11-30|1966-08-09|Union Carbide Corp|Method and apparatus for forming thermoplastic films|
    FR1366077A|1963-05-22|1964-07-10|British Cellophane Ltd|Tubular film manufacturing improvements|
    US3456044A|1965-03-12|1969-07-15|Heinz Erich Pahlke|Biaxial orientation|
    DE2132098A1|1971-06-28|1973-01-18|Windmoeller & Hoelscher|COOLING DEVICE FOR PLASTIC TUBE FILMS MADE WITH A FILM BLOW HEAD|
    US3852392A|1972-12-18|1974-12-03|Borden Inc|Method of removing plasticizer mist from air|
    DE2262190B2|1972-12-19|1975-02-06|Windmoeller & Hoelscher, 4540 Lengerich|Cooling device for plastic tubular films produced by means of a film blow head with air cooling|
    US3902832A|1974-05-09|1975-09-02|Gk Systems Inc|Manufacture of blown film|
    DE2445545A1|1974-09-24|1976-04-01|Windmoeller & Hoelscher|FILM BLOW HEAD FOR THE MANUFACTURE OF TUBULAR FILM|
    DE2555848A1|1975-12-11|1977-06-23|Windmoeller & Hoelscher|COOLING DEVICE FOR PLASTIC TUBE FILMS WITH AIR COOLING MADE WITH A FILM BLOW HEAD|
    DE2610818C2|1976-03-15|1984-06-20|Windmöller & Hölscher, 4540 Lengerich|Cooling device for plastic tubular films produced by means of a film blow head with air cooling|
    CH594490A5|1976-06-18|1978-01-13|Oerlikon Buehrle Ag|High strength thermoplastic film tubing|
    US4402656A|1978-11-30|1983-09-06|Gloucester Engineering Co., Inc.|Control of tubular film size|
    US4243363A|1979-03-12|1981-01-06|Gloucester Engineering Co., Inc.|Control of tubular film size|
    JPS564433A|1979-06-23|1981-01-17|Modern Mach Kk|Guiding device for valve equipped with internal cooler|
    JPH0218972B2|1981-10-16|1990-04-27|Nippon Unicar Co Ltd|
    JPS647576B2|1981-11-09|1989-02-09|Mitsui Sekyu Kagaku Kogyo Kk|
    DE3311932C2|1983-03-31|1986-10-02|Windmöller & Hölscher, 4540 Lengerich|Cooling device for tubular plastic films extruded from a film blow head|
    DE3319604A1|1983-05-30|1984-12-06|Fa. Klaus Reinhold, 4540 Lengerich|CALIBRATION DEVICE ON AN EXTRUDER|DE3436881C2|1984-10-08|1989-12-28|Windmoeller & Hoelscher, 4540 Lengerich, De|
    DE8525622U1|1985-09-07|1986-06-26|Alpine Ag, 8900 Augsburg|Device for cooling a film tube|
    DE3820530C2|1988-06-16|1990-05-03|Reifenhaeuser Gmbh & Co Maschinenfabrik, 5210 Troisdorf, De|
    DE3903174C3|1989-02-03|1997-06-19|Karl Veit Holger Prof Dr Ing|Internal cooling for plastic tubular film extruded from a blow head|
    US5232715A|1990-10-15|1993-08-03|Nissei Asb Machine Co., Ltd.|Apparatus for cooling a preform in a cooling tube|
    JPH0790595B2|1990-10-15|1995-10-04|日精エー・エス・ビー機械株式会社|Preform cooling system|
    DE9202272U1|1992-02-21|1992-04-23|Reifenhaeuser Gmbh & Co Maschinenfabrik, 5210 Troisdorf, De|
    ATA53792A|1992-03-17|1995-02-15|Chemiefaser Lenzing Ag|METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES, DEVICE FOR IMPLEMENTING THE METHOD AND USE OF A SPINNING DEVICE|
    AT402738B|1993-07-28|1997-08-25|Chemiefaser Lenzing Ag|SPIDER NOZZLE|
    DE4418133C1|1994-05-25|1995-04-06|Reifenhaeuser Masch|Device which can be connected to a film blowing die, for introducing blowing air into the film bubble during the blown film extrusion of tubular films|
    US5576029A|1995-06-02|1996-11-19|Planeta; Mirek|Internal cooling air supply assembly|
    JP3710800B2|2003-01-31|2005-10-26|住友ベークライト株式会社|Tubular resin film manufacturing apparatus and manufacturing method|
    US20100013125A1|2007-01-25|2010-01-21|Netstal-Maschinen Ag|Aftercooling apparatus and method for aftercooling preforms|
    DE102009037524A1|2009-08-17|2011-02-24|Kiefel Extrusion Gmbh|Cooling device for film in blown film system, has discharging unit discharging cooling fluid and exerting suction force on cooling force, and longitudinal distribution unit provided for distributing suction force on film|
    CN103434130A|2013-09-04|2013-12-11|南京沪江复合材料有限公司|Film bubble heat insulation protection cover of film blowing machine|
    CA2927416A1|2013-10-15|2015-04-23|Reifenhauser Gmbh & Co. Kg Maschinenfabrik|Blow film line and method for operating a blow film line|
    US11207816B2|2016-01-15|2021-12-28|Addex, Inc.|High performance cooling element|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3335334A|DE3335334C2|1983-09-29|1983-09-29|Cooling device for plastic tubular films extruded from a film blow head with air cooling|
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