DE10210845B4 - Device for cooling blown film just before the take-off rolls - Google Patents
Device for cooling blown film just before the take-off rolls Download PDFInfo
- Publication number
- DE10210845B4 DE10210845B4 DE10210845A DE10210845A DE10210845B4 DE 10210845 B4 DE10210845 B4 DE 10210845B4 DE 10210845 A DE10210845 A DE 10210845A DE 10210845 A DE10210845 A DE 10210845A DE 10210845 B4 DE10210845 B4 DE 10210845B4
- Authority
- DE
- Germany
- Prior art keywords
- cooling
- film
- rollers
- air
- rolls
- 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.)
- Expired - Fee Related
Links
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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/84—Heating or cooling
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- 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
- B29C48/911—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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/10—Bending or folding of blown tubular films, e.g. gusseting
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
Vorrichtung zum Kühlen einer Schlauchfolie (7) an einer Blasfolienanlage,
dadurch gekennzeichnet, dass
die Vorrichtung zwischen einer Flachlegung und Abquetschwalzen (1) angeordnet ist, sodass zwei Folienhälften der Schlauchfolie (7) in diesem Bereich einen geringen Abstand haben, aber im Wesentlichen flachgelegt sind,
wobei Führungswalzen in diesem Bereich als Bürstenrollen (2) ausgebildet sind, deren Borsten (11) vorbeiströmender Luftströmung (12) nur einen geringen Widerstand entgegenbringen.Device for cooling a tubular film (7) on a blown film line,
characterized in that
the device is arranged between a flattening and squeezing rollers (1), so that two film halves of the tubular film (7) have a small spacing in this area, but are essentially flattened,
wherein guide rollers are formed in this area as brush rollers (2) whose bristles (11) passing air flow (12) have only a small resistance.
Description
Die Erfindung betrifft eine Vorrichtung zur Kühlung von Blasfolien zwischen der Flachlegung und den Abzugswalzen.The The invention relates to a device for cooling blown films between flattening and take-off rolls.
Die Leistung von Blasfolienanlagen hängt von verschiedenen Faktoren ab. Einer dieser Faktoren ist die Vermeidung des Verblockens der beiden flachgelegten Folienhälften, da eine verblockte oder schwer trennbare Folie für die Nachfolgeprozesse nicht zu gebrauchen ist. Es sind deshalb verschiedene Einrichtungen bekannt, die sich mit dem Kühlen des flachgelegten Schlauches vor den Abzugswalzen beschäftigen. Profile mit Kühlmittel kühlen zwar intensiv, sie können aber aufgrund der intensiven Kühlung bei flicht zu dicken Folien ein Schrumpfen der Folie bewirken, was zur Faltenbildung führen kann. Außerdem erzeugen nicht rotierende Führungen Kratzer auf der Folie.The Performance of blown film depends on different factors. One of these factors is avoidance the blocking of the two flattened film halves, as a blocked or heavy separable film for the follow-up processes are useless. It is therefore different Facilities are known that deal with the cooling of the flattened hose deal with the extraction rollers. Profiles with coolant cool while intense, they can but due to the intense cooling when too thick foils cause a shrinkage of the film, what can lead to wrinkling. Furthermore generate non-rotating guides Scratches on the slide.
Vorrichtungen mit gekühlten Führungsrollen sind schwierig zu realisieren, da die Rollen im allgemeinen im Durchmesser zu klein sind, um von einem Kühlmedium durchflossen zu werden. Auch sind Einrichtungen mit Luftkühlung bekannt, bei denen die Folie durch Rollen geführt wird. Nachteilig ist hierbei, dass die Luftmengen relativ klein sind und somit der Kühleffekt gering, da sich größere Luftmengen an den Rollen stauen, die Luft verwirbelt und somit Falten und u. U. ungleichmäßige Kühleffekte entstehen.devices with chilled Guide rollers are difficult to realize because the rolls generally in diameter too small to get from a cooling medium to be flown through. Also known are devices with air cooling, in which the film is guided by rollers. The disadvantage here is that the amounts of air are relatively small and thus the cooling effect low, as there are larger amounts of air stowing on the rollers, the air swirls and thus wrinkles and u. U. uneven cooling effects arise.
In
der
In
der
In
der
Die
In
der
Aufgabe der vorliegenden Erfindung ist es, zuvor beschriebene Nachteile zu vermeiden und trotzdem eine wirkungsvolle Kühlung zu erzielen.task The present invention is the disadvantages described above to avoid and still achieve an effective cooling.
Diese Aufgabe wird gelöst durch eine Vorrichtung zum Kühlen einer Schlauchfolie mit Luft an einer Blasfolienanlage, wobei die Vorrichtung zwischen einer Flachlegung und Abquetschwalzen angeordnet ist, so dass zwei Folienhälften der Schlauchfolie in diesem Bereich einen geringen Abstand haben, aber im Wesentlichen flachgelegt sind, wobei Führungswalzen in diesem Bereich als Bürstenrollen mit Borsten ausgebildet sind, wobei Kühlrohre vorgesehen ist, welche ein Luftverteilungssystem mit Luft versorgt, und wobei die Kühlrohre Austrittsöffnungen aufweisen, und zwar im Bereich der Borsten an der Schlauchfolie und gerichtet gegen die flachgelegte Schlauchfolie, wobei die Borsten vorbeiströmender Luftströmung nur einen geringen Widerstand entgegenbringen.These Task is solved by a device for cooling a tubular film with air on a blown film plant, wherein the Device arranged between a flattening and squeezing rollers is, so that two halves of the film the tubular film in this area have a small distance, but are essentially flattened, with guide rollers in this area as brush rollers are formed with bristles, wherein cooling tubes is provided, which an air distribution system supplied with air, and wherein the cooling tubes outlet openings have, in the region of the bristles on the tubular film and directed against the flattened tubular film, wherein the bristles flowing past airflow only a small resistance.
Dies kann dadurch realisiert werden, dass die Kühlung mit schnell strömender Luft mit gutem Wärmeübergang erzielt wird, wobei die relativ laminare Luftströmung dadurch unterstützt wird, dass die Führungsrollen aus luftdurchlässigen Rollen in Form von Bürstenrollen ausgeführt sind und so angeordnet sind, dass sie den Kühleffekt unterstützen.This can be realized by cooling with fast flowing air with good heat transfer achieved, thereby supporting the relatively laminar flow of air, that the leadership roles made of air-permeable Rolls in the form of brush rolls accomplished are arranged and so that they support the cooling effect.
Anhand des in den beigefügten Zeichnungen dargestellten Ausführungsbeispieles wird die Erfindung erklärt.With reference to the embodiment shown in the accompanying drawings, the inven explained.
Es zeigtIt shows
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10210845A DE10210845B4 (en) | 2002-03-12 | 2002-03-12 | Device for cooling blown film just before the take-off rolls |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10210845A DE10210845B4 (en) | 2002-03-12 | 2002-03-12 | Device for cooling blown film just before the take-off rolls |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10210845A1 DE10210845A1 (en) | 2003-04-30 |
DE10210845B4 true DE10210845B4 (en) | 2010-12-09 |
Family
ID=7714078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10210845A Expired - Fee Related DE10210845B4 (en) | 2002-03-12 | 2002-03-12 | Device for cooling blown film just before the take-off rolls |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10210845B4 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1491319B1 (en) * | 2003-06-24 | 2008-01-02 | K Design GmbH | Method and apparatus for manufacturing blown films |
DE10352976A1 (en) * | 2003-11-13 | 2005-06-09 | Kiefel Extrusion Gmbh | Flat laying device with spreading roller for blown film lines |
DE10354503B4 (en) * | 2003-11-21 | 2014-09-04 | Kiefel Extrusion Gmbh | Blown film system with a calibration basket as tube calibration and / or as tube guide |
CN104690952B (en) * | 2015-03-16 | 2017-03-22 | 安徽国风塑业股份有限公司 | Transversely-pulling air bellow applied to biaxially oriented film production line |
CN115091666B (en) * | 2022-06-17 | 2023-07-28 | 泗阳蓝天新材料科技股份有限公司 | Maintainable ripple eliminating device for polyurethane film |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1504614A1 (en) * | 1963-02-06 | 1969-09-11 | Nat Distillers Chem Corp | Device for forming tubular films from thermoplastics |
DE7123975U (en) * | 1972-10-26 | Windmoeller & Hoelscher | Post-cooling device for blown film | |
DE8534072U1 (en) * | 1985-12-04 | 1987-04-16 | Barmag Ag, 5630 Remscheid, De | |
DE3640365C2 (en) * | 1985-12-04 | 1988-01-28 | Barmag Ag, 5630 Remscheid, De | |
EP0795391A2 (en) * | 1996-03-12 | 1997-09-17 | WindmÀ¶ller & Hölscher | Device for flattening a tubular film |
-
2002
- 2002-03-12 DE DE10210845A patent/DE10210845B4/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7123975U (en) * | 1972-10-26 | Windmoeller & Hoelscher | Post-cooling device for blown film | |
DE1504614A1 (en) * | 1963-02-06 | 1969-09-11 | Nat Distillers Chem Corp | Device for forming tubular films from thermoplastics |
DE8534072U1 (en) * | 1985-12-04 | 1987-04-16 | Barmag Ag, 5630 Remscheid, De | |
DE3640365C2 (en) * | 1985-12-04 | 1988-01-28 | Barmag Ag, 5630 Remscheid, De | |
EP0795391A2 (en) * | 1996-03-12 | 1997-09-17 | WindmÀ¶ller & Hölscher | Device for flattening a tubular film |
Also Published As
Publication number | Publication date |
---|---|
DE10210845A1 (en) | 2003-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Publication of unexamined application with consent of applicant | ||
8127 | New person/name/address of the applicant |
Owner name: KIEFEL EXTRUSION GMBH, 67547 WORMS, DE |
|
8181 | Inventor (new situation) |
Inventor name: HESSENBRUCH, ROLF, 42855 REMSCHEID, DE |
|
8110 | Request for examination paragraph 44 | ||
8125 | Change of the main classification |
Ipc: B29C 5310 |
|
8364 | No opposition during term of opposition | ||
R020 | Patent grant now final |
Effective date: 20110309 |
|
R082 | Change of representative |
Representative=s name: SCHIEBER - FARAGO, DE |
|
R081 | Change of applicant/patentee |
Owner name: REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK, DE Free format text: FORMER OWNER: KIEFEL EXTRUSION GMBH, 67547 WORMS, DE |
|
R082 | Change of representative |
Representative=s name: SCHIEBER - FARAGO, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |