CN1925973A - Blown film extrusion device - Google Patents

Blown film extrusion device Download PDF

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Publication number
CN1925973A
CN1925973A CNA2005800067316A CN200580006731A CN1925973A CN 1925973 A CN1925973 A CN 1925973A CN A2005800067316 A CNA2005800067316 A CN A2005800067316A CN 200580006731 A CN200580006731 A CN 200580006731A CN 1925973 A CN1925973 A CN 1925973A
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CN
China
Prior art keywords
extrusion device
air
blown film
aforementioned
porous material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2005800067316A
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Chinese (zh)
Other versions
CN100542784C (en
Inventor
J·林基斯
T·克诺克
M·贝克曼
H·弗里谢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of CN1925973A publication Critical patent/CN1925973A/en
Application granted granted Critical
Publication of CN100542784C publication Critical patent/CN100542784C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/907—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using adjustable calibrators, e.g. the dimensions of the calibrator being changeable
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

The invention relates to a blown film extrusion device(1) that comprises a blowing head (5), which extrudes a film tube (9), a press device (8), which presses the film tube (9), and comprises film guide elements (7, 13, 27, 28) that guide the film tube (9) between the extrusion by the blow head and the press. According to the invention, a creativity is that the guiding elements (7, 13, 27, 28) contain a porous, preferably microporous material.

Description

Blown film extrusion device
The present invention relates to a kind of according to claim 1 blown film extrusion device as described in the preamble.
This blown film extrusion device is well-known, and has come into operation for a long time.Carry plastics to this equipment with granular form, these plastics plastify under the high pressure effect in extruder and are processed into stickum then.The material of these high temperature owing to pressure has is configured to annular in a blowing head, and discharges from the blowing head by a nozzle ring.And then after leaving nozzle ring, these materials have just formed tubular film.But the diameter of this tubular film can change, because its also not cooling fully.General enlarged diameter, method is to be blown into pressure air in the inner chamber of tubular film.In order to make tubular film always have constant diameter, itself and film guide are kept spacing ground guiding, perhaps directly lead along film guide.Film guide this is arranged in the field of blown film extrusion device and is called the calibration basket.After through the calibration basket, the tubular film that has now solidified is led along other film guide, these film guide tile flexible pipe.This tiling unit (Flachlegeeinheit) handle thin films flexible pipe pushes, thereby this tubular film forms a kind of bilayer film thin slice (Folienbahn).Will also be understood that except the tiling fully of tubular film for " extruding " and to be a kind of incomplete tiling.Also has procedure of processing in incomplete tiling back, for example along vertical cutting of flanging.
Film guide can run through with the hole, and these holes load with pressure air in a side that deviates from tubular film.These flow through diameter for example for the pressure air in the hole of 0.5mm stops tubular film, thereby contactlessly guide these tubular films.Avoided the damage of tubular film in this way.
But in order not disturb the stability of film guide, these holes must have a definite distance each other.But this air cushion that can cause guiding tubular film acts on the circumference of tubular film unevenly.Can make the guiding accuracy impaired thus.Its consequence is exactly the bigger inexactness in the diameter of tubular film.Tubular film also can the vibration easily owing to uneven pressure air loads.
Therefore task of the present invention provides a kind of blown film extrusion device, wherein improves the guiding accuracy in the film guide scope.
This task solves by the characteristic features of claim 1.
Accordingly, this guide comprise a kind of porous, microporous material preferably.Just this material has many transparent holes.Therefore film guide can load with pressure air deviating from the side of tubular film, these pressure airs can make tubular film lead with high-quality form a kind of almost uniform air cushion on a side of tubular film by means of this air cushion then.Thus, the diameter of tubular film has more small tolerance.This uniform air cushion can carry out extra cooling to film in addition, thereby this film can cool off faster, and this is embodied on the higher transparency of film.In general, by using the quality that this guide can significantly improve film.
Preferably use agglomerated material as material with this specific character.Agglomerated material can be made with simple mode, because can save follow-up machining.
In preferred embodiment, this porous material has metal ingredient, as copper or bronze.This can make that the stability of material is higher, thereby guide can keep thinlyyer.
By blown film extrusion device of the present invention a kind of preferred embodiment in, described porous material is arranged between the transport path and pressure air container or pressure air intake line of tubular film, make air pass through this material and discharge, thereby make air on film, apply a power.This material is configured as plate or thin plate at this, and wherein its surface is provided with tubular film abreast in other words basically tangently.Plate or thin plate are easy to bending in addition.The thickness of plate 1 and 10mm between, be preferably in 2 and 5mm between.The average pore opening of porous material is between 5 and 100 microns, especially between l0 and 60 microns, preferably between 20 and 45 microns.
In the another kind of preferred improvement project of blown film extrusion device of the present invention, this porous material is arranged in the scope of calibration basket, and wherein a plurality of surfaces that separate that are made of porous materials are towards tubular film.The integral body on the surface that these separate has been determined the border of cylindrical overcoat, and this cylindrical diameter can change.Can make even have the high-quality tubular film of variable-diameter in this way.Preferably relatively move in these these surperficial at least a portion along the circumferencial direction of tubular film.
Other preferred improvement project of the present invention is by obtaining in dependent claims and the accompanying drawing.Each accompanying drawing illustrates:
Fig. 1 shows the blown film extrusion device by prior art;
Fig. 2 shows blowing head, calibration basket and the tiling unit by blown film extrusion device of the present invention;
Fig. 3 shows the view III-III of Fig. 2.
Fig. 1 shows a kind of known blown film extrusion device 1.To filling sleeve pipe 4 input plastics, these plastics plastify processing then in extruder 3.The material that produces is by connecting line 14 input blowings 5, and it forms a kind of tubular film 9.Leave blowing 5 along throughput direction z by sightless nozzle ring at this tubular film 9.Because by the conveying that 12 pairs of pressure airs of air blast sleeve pipe carry out, tubular film is right after and is leaving blowing 5 a back expansion.But the diameter of tubular film 9 is limited by calibration basket 20.In calibration basket 20, tubular film 9 is by plate 28 guiding, and pressure air is by plate alignment thin film flexible pipe.Calibration basket 20 also comprises a framework 21 and crossbeam 22 and 6 in addition.After leaving calibration basket 20, tubular film 9 arrives a tiling unit 21, and in this tiling unit, tubular film almost or be badly deformed into a kind of bilayer film thin slice.At this, tubular film 9 leads in paired guide 7,13, and these guides occupy a more and more small relative spacing along the trend of throughput direction z.Tile completely and undertaken by a pressurizing unit, it comprises a pair of compression roller 8.Film sheet 9 can perhaps as under the situation of shown device directly be imported coiler device ll by slewing rollers 10 by a unshowned reversing arrangement guiding now, there film sheet 9 is processed into one around volume 12.
Fig. 2 and 3 shows the intercepting part by blown film extrusion device 1 of the present invention.In the scope of calibration basket 20, on a framework 25, be provided with a plurality of pressure air containers 26.In walking upwards of throughput direction z, be provided with a plurality of pressure air containers 26 stackedly.Similarly pressure air container 26 is fixed on the framework 25 of tiling unit 21, but wherein is stressed that, is extruding in the unit 1 by inflation film of the present invention, perhaps calibrates basket 20 or tiling unit 21 can be constructed in known manner.The pressure air container 26 of calibration basket 20 radially supports with respect to tubular film movably by unshowned governor motion, and has determined the diameter of tubular film 9 in this way.As seen from Figure 3, pressure air container 26 is distributed on the circumference of calibration basket, and the pressure air container 26 that wherein is arranged in the Different Plane relatively moves along the circumferencial direction  of tubular film 9.
Pressure air container 26 is by unshowned pressure air pipeline supply pressure air, the pressure air container 26 of unit 21 of wherein tiling can be furnished with the high pressure of pressure air container than calibration basket 20, because in order to be out of shape, the power that is applied on the tubular film 9 must be bigger.In a side towards tubular film 9, the plate sealing of pressure air container 26 by making by porous material 27, but pressure air can pass through these holes.The plate of being made by porous material 27 so is provided with, and makes pressure air apply a power on tubular film 9, and tubular film and plate are kept a distance small, that still compatibly determine.Tubular film 9 is accurately guided in the position in this way.
Reference numerals list
  1 Blown film extrusion device
  2
  3 Extrude machine
  4 The filling sleeve pipe
  5 The blowing head
  6 Crossbeam
  7 Guide
  8 Compression roller
  9 Tubular film
  l 0 Turn to roller
  11 The coiling device
  12 Around volume
  13 Guide
  14 Connect pipeline
  15 The air blast sleeve pipe
  16
  17
  18
  19
  20 The calibration basket
  21 The tiling unit
  22 Crossbeam
  23
  24
  25 Framework
  26 Pressure air container
  27 The plate of being made by porous material 27
  28 Plate
  29
  30
  z The throughput direction of tubular film 9
   The circumference direction of tubular film

Claims (16)

1. blown film extrusion device (1), it has following at least feature:
-one blowing head (5), its extrusion film flexible pipe (9);
-one pressurizing unit (8), its extrusion film flexible pipe (9);
-film guide (7,13,27,28), its (3) its extrude by the blowing head and its extruding between guide tubular film (9);
It is characterized in that: described guide (7,13,27,28) comprise a kind of porous, microporous material preferably.
2. by the described blown film extrusion device of claim 1 (1), it is characterized in that: described porous material is an agglomerated material.
3. by each described blown film extrusion device (1) in the aforementioned claim, it is characterized in that: described porous material has metal ingredient, as copper or bronze.
4. by each described blown film extrusion device (1) in the aforementioned claim, it is characterized in that: described porous material so is provided with between the transport path of film and/or tubular film (9) and pressure air container or air intake line, make air discharge by porous material, wherein the air of Liu Chuing applies a power on film.
5. by each described blown film extrusion device (1) in the aforementioned claim, it is characterized in that: described porous material have 1 and 10mm between thickness.
6. by each described blown film extrusion device (1) in the aforementioned claim, it is characterized in that: described porous material have 2 and 5mm between thickness.
7. by each described blown film extrusion device (1) in the aforementioned claim, it is characterized in that: described porous material has the average pore opening between 5 and 100 microns.
8. by each described blown film extrusion device (1) in the aforementioned claim, it is characterized in that: described porous material has the average pore opening between 10 and 60 microns.
9. by each described blown film extrusion device (1) in the aforementioned claim, it is characterized in that: described porous material has the average pore opening between 20 and 45 microns.
10. by each described blown film extrusion device (1) in the aforementioned claim, it is characterized in that: described porous material is arranged in the scope at calibration basket and/or extruding position.
11. by each described blown film extrusion device (1) in the aforementioned claim, it is characterized in that: described porous material is arranged in the scope of calibration basket (20), and wherein a plurality of plates of being made by porous material (27) that separate are towards tubular film.
12., it is characterized in that by each described blown film extrusion device (1) in the aforementioned claim: at least a portion-this part of the described plate of being made by porous material (27) staggering on the throughput direction (z) of tubular film (9) mutually-also relatively moves on the circumferencial direction () in tubular film (9).
13. be used for moving method by each described blown film extrusion device of claim 4 to 10, it is characterized in that: set the pressure in described air vessel (26) and/or the air pipe line, make between air vessel and/or air pipe line and the extraneous air pressure differential 10 millibars and 1 the crust between.
14. be used to move method by the described blown film extrusion device of aforementioned claim, it is characterized in that: set the pressure in described air vessel (26) and/or the air pipe line, make pressure differential between air vessel (26) and/or air pipe line and the extraneous air between 20 and 200 millibars.
15. be used for the method for operation by the described blown film extrusion device of aforementioned claim (1), it is characterized in that: set the pressure in described air vessel (26) and/or the air pipe line, make pressure differential between air vessel (26) and/or air pipe line and the extraneous air between 10 and 100 millibars.
16. be used for the method for operation by the described blown film extrusion device of aforementioned claim (1), it is characterized in that: set the pressure in described air vessel (26) and/or the air pipe line, make pressure differential between air vessel (26) and/or air pipe line and the extraneous air between 30 and 90 millibars.
CNB2005800067316A 2004-03-04 2005-02-22 Blown film extrusion device Expired - Fee Related CN100542784C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004011216.9 2004-03-04
DE102004011216 2004-03-04
DE102004031366.0 2004-03-25

Publications (2)

Publication Number Publication Date
CN1925973A true CN1925973A (en) 2007-03-07
CN100542784C CN100542784C (en) 2009-09-23

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Country Status (2)

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DE (1) DE102004031366B4 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101720273A (en) * 2007-06-28 2010-06-02 莱芬豪舍机械制造公司 Device for producing blown films
CN104220235A (en) * 2012-04-11 2014-12-17 韦德穆勒&霍斯彻特两合公司 Device and method for guiding blown film
CN107107430A (en) * 2014-10-15 2017-08-29 温德莫勒及霍尔希尔公司 Method and apparatus for manufacturing and reprocessing tubular film
CN109311210A (en) * 2016-05-09 2019-02-05 温德莫勒及霍尔希尔公司 For manufacturing the inflation film unit of inflation film

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE638543A (en) * 1962-10-12 1900-01-01
DE2005182A1 (en) * 1970-02-05 1971-08-19 Basf Ag Crystalline thermoplastic, blown film or part - film
US4462953A (en) * 1982-05-27 1984-07-31 The Goodyear Tire & Rubber Company Process for the manufacture of polyester film
DE3323817A1 (en) * 1983-07-01 1985-01-10 Windmöller & Hölscher, 4540 Lengerich DEVICE FOR SUPPORTING AND CALIBRATING FILM TUBES MADE OF THERMOPLASTIC PLASTIC
DE3436881A1 (en) * 1984-10-08 1986-04-10 Windmöller & Hölscher, 4540 Lengerich COOLING DEVICE FOR PLASTIC TUBE FILMS EXTRUDED FROM A FILM BLOW HEAD
DE3516244A1 (en) * 1985-05-06 1986-11-06 Tomi Machinery Mfg. Co. Ltd., Tsunashimahigashi, Yokohama COOLING AND GUIDE DEVICE FOR FILMS MADE OF THERMOPLASTIC RESIN
US5128076A (en) * 1991-03-21 1992-07-07 Minnesota Mining And Manufacturing Company Apparatus and method for producing an elongate strip of material
CN1123522C (en) * 1998-12-23 2003-10-08 巴赫芬和迈耶机械制造股份公司 Device for guiding or treating a continuous line of material in contactless manner, especially a line of paper or cardboard or metal or plastic film
ATE352408T1 (en) * 2003-06-17 2007-02-15 Reifenhaeuser Masch DEVICE FOR PRODUCING A FILM FROM THERMOPLASTIC PLASTIC

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101720273A (en) * 2007-06-28 2010-06-02 莱芬豪舍机械制造公司 Device for producing blown films
CN101720271A (en) * 2007-06-28 2010-06-02 莱芬豪舍机器制造公司 Guide element for a tubular film
CN104220235A (en) * 2012-04-11 2014-12-17 韦德穆勒&霍斯彻特两合公司 Device and method for guiding blown film
CN104220235B (en) * 2012-04-11 2016-10-26 韦德穆勒&霍斯彻特两合公司 Guide the apparatus and method of blown film
US9724867B2 (en) 2012-04-11 2017-08-08 Windmöller & Hölscher Kg Device and method for guiding a blown film
CN107107430A (en) * 2014-10-15 2017-08-29 温德莫勒及霍尔希尔公司 Method and apparatus for manufacturing and reprocessing tubular film
CN109311210A (en) * 2016-05-09 2019-02-05 温德莫勒及霍尔希尔公司 For manufacturing the inflation film unit of inflation film

Also Published As

Publication number Publication date
CN100542784C (en) 2009-09-23
DE102004031366A1 (en) 2005-09-22
DE102004031366B4 (en) 2014-09-04

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