DE2003289A1 - Contact cooling device for blown film - Google Patents
Contact cooling device for blown filmInfo
- Publication number
- DE2003289A1 DE2003289A1 DE19702003289 DE2003289A DE2003289A1 DE 2003289 A1 DE2003289 A1 DE 2003289A1 DE 19702003289 DE19702003289 DE 19702003289 DE 2003289 A DE2003289 A DE 2003289A DE 2003289 A1 DE2003289 A1 DE 2003289A1
- Authority
- DE
- Germany
- Prior art keywords
- blown film
- cooling
- contact
- cooling device
- carrier
- 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.)
- Pending
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
- 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
- B29C48/03—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
- 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
- B29C48/911—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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
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
Description
Blasfolien-Kontaktkühlvorrichtung Die Erfindung bezieht sich-auf eine mittelbar'hinter einem Extruder angeordnete Kontaktkühlvorrichtung für eine Blasfolie, die aus mehreren parallel angeordneten, kühlmitteldurchströmten Einzelkühlkörpern gebildet ist, die die Blasfolie auf ihrem Umfang umfassen und sie auf einer Kontaktkühlstrecke führen, wobei ferner Mittel zum Verstellen der einzelnen Kühlkörper zum Verändern des Abstandes gegenüberliegender Kühlkörper vorgesehen sind.Blown film contact cooling device The invention relates to a contact cooling device arranged indirectly behind an extruder for a blown film, made up of several parallel, individual cooling elements through which coolant flows is formed, which include the blown film on their circumference and they on a contact cooling section lead, further means for adjusting the individual heat sinks for changing the distance between opposing heat sinks are provided.
Es ist bekannt, eine solche Kühlvorrichtung aus im At'stand einander, gegenüber angeordneten, in Blasfolienbewegungsrichtung zueinander geneigten Kühlkörpern und aus um 90 Grad zu diesen Kühlkörpern ebenfalls im Abstand gegenüber-angeordneten, entgegengesetzt zur Blasfolienbewegungsrichtung zueinander geneigten trapezförmigen Kühlkörpern zu bilden.It is known to make such a cooling device in at'stand each other, oppositely arranged heat sinks inclined to one another in the direction of blown film movement and from 90 degrees to these heat sinks also at a distance from each other, opposite to the direction of movement of the blown film to each other inclined trapezoidal To form heat sinks.
Die trapezförmigen Kühlkörper sind gemeinsam neigungs-, höhen- und abstandsverstellbar angeordnet. +) Die bekannte Vorrichtung bildet stets einen rechteckigen Kühlumfang, und der Kühlraum weist in etwa die Form ;eines Pyramiden- oder Keilstumpfes auf. Die bewegte Blasfolie muß sich auf dem Weg durch diese Kühlvorrichtung ständig an die sich ändernden Kühlquerschnitte anpassen. Die bekannte Vorrichtung ist aufgrund des gewählten AuSbaues lediglich für -verhältnismäßig gering veränderbare'Blåsfoliendurchmesser anzuwenden.The trapezoidal heat sinks are jointly incline, height and Arranged adjustable in distance. +) The known device always forms a rectangular one Cooling circumference, and the cooling space has approximately the shape of a truncated pyramid or wedge on. The moving blown film must be constantly on the way through this cooling device adapt to the changing cooling cross-sections. The known device is due of the selected structure only for -relatively little changeable'blown film diameters apply.
Ziel der Erfindung ist es, eine Kontaktkühlvortichtung mit Einzelkühlkörpern zu schaffen, die eine gleichmäßige Umfangsveränderung der Kontaktkühlung gwährleistet und dabei in Blasfolienbewegungsrichtung annähernd gleiche oder gleiche Kühiquerschnitte aufweist.The aim of the invention is to provide a contact cooling device with individual heat sinks to create a uniform change in the circumference of the contact cooling and approximately the same or the same cooling cross-sections in the direction of movement of the blown film having.
+).DEGM 6.914.)59 Dieses Ziel wird erfindungsgemäß durch iris-blendenartig angeordnete bogenförmig ausgebildete Kühlsegmente als kühlmitteldurchströmte Kontaktkühlkörper erzielt, wobei die über die Kühlstrecke in einer Ebene hintereinander angeordneten Kontaktkühlkörper einem gemeinsamen Träger mit Verstellgetriebe zugeordnet sind und wobei die Verstellgetriebe durch einen gemeinsamen Antrieb verstellbar sind. +). DEGM 6.914.) 59 This goal is achieved according to the invention by means of curved cooling segments arranged in the manner of an iris diaphragm as coolant flowed through Contact heat sink achieved, the one behind the other on the cooling section in a plane arranged contact heat sink assigned to a common carrier with adjusting gear are and wherein the adjusting gear can be adjusted by a common drive are.
Diese neue Kontaktkühlvorrichtung paßt sich aufgrund des gewählten Aufbaues mit ihren Kühlsegmentkörpern dem jeweils vorhandenen Blasfoliendurchmesser über einen verhältnismäßig großen Verstellbereich und eine verhältnismäßig große Kontaktkühlstrecke gleichmäßig an.This new contact cooling device adapts itself based on the chosen Structure with their cooling segment bodies the respective existing blown film diameter over a relatively large adjustment range and a relatively large one Contact cooling section evenly.
Sie erfüllt ihre Aufgaben, die Blasfolie zugleich intensiv zu kühlen und auf der Basis eines Berührungskontaktes zu führen, wobei die dazu erforderlichen Mittel einfacher Ausbildung sind und wobei die Mittel ferner übersichtlich und gut zugänglich angeordnet sind. Die vorgesehenen Verstellmittel für die iris-blendenartig angeordneten Kühlsegmente sind einfach zu bedienen.It fulfills its task of cooling the blown film intensively at the same time and on the basis of a touch contact, with the necessary Means are simple training and the means are also clear and good are arranged accessible. The adjustment means provided for the iris diaphragm-like arranged cooling segments are easy to use.
Nach einem weiteren Merkmal ist bevorzugt jeder Träger für mehrere axial hintereinander angeordnete Kühlsegmentkörper mit einem Viergelenkgetriebe, insbesondere Parallelogrammgetriebe, versehen. Als Verstellorgan kann ein Spindeltrieb mit Koppelstange zum Träger dienen.According to a further feature, each carrier is preferably for several cooling segment bodies arranged axially one behind the other with a four-bar gear, in particular parallelogram transmission provided. A spindle drive can be used as the adjusting element serve with coupling rod to the carrier.
Bevorzugt ist ferner vorgesehen, daßäLle Spindeltriebe mit einem endlosen Zugmittel, insbesondere Ketten- oder Seiltrieb, getrieblich miteinander verbunden sind und daß an einem dieser Spindeltriebe ein Handrad für die Verstellung aller Spindeltriebe im Synchron-Sinne vorgesehen ist.It is also preferably provided that all spindle drives with an endless Traction means, in particular chain or cable drive, connected to one another in a geared manner are and that on one of these spindle drives a handwheel for the adjustment of all Spindle drives are provided in the synchronous sense.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und erläutert.An embodiment of the invention is shown in the drawing and explained.
Es zeigt Fig. 1 eine Kontaktkühlvorrichtung in der Draufsicht Fig. 2 die Einzelheit eines gemeinsamen Trägers für mehrere axial hintereinander angeordnete Kühlsegmentkörper sowie mit Viergelenkgetrieben und Verstelltrieb in Ansicht, Fig 3 einen Träger gemäß Figur 2 in der-Ansicht A nach Figur 1.1 shows a contact cooling device in plan view. 2 the detail of a common carrier for several axially arranged one behind the other Cooling segment body as well as with four-bar gears and adjusting drive in view, Fig 3 shows a carrier according to FIG. 2 in view A according to FIG. 1.
Die Blasfolien-Kontaktkühlvorrichtung besteht aus polygonartig angeordneten Trägern 1, die parallel zur Blasfolienbewegungsrichtung angeordnet sind und je mehrere, im Abstand zueinander angeordnete Kontaktkühlkörper 2 tragen. Diese Kontaktkühlkörper 2 sind bogenförmig als Kühlsegmente ausgebildet und sie sind von einem Kühlmittel durchflossen.The blown film contact cooling device consists of polygons arranged Carriers 1, which are arranged parallel to the direction of blown film movement and each have several, wear contact heat sinks 2 arranged at a distance from one another. This contact heat sink 2 are arcuate as cooling segments and they are of a coolant flowed through.
Sie bilden als Anordnungseinheit eine iris-blendenartig angeordnete Kontaktkühlvorrichtung für die (nicht dargestellte y Blasfolie.As an arrangement unit, they form an iris-diaphragm-like arrangement Contact cooling device for the blown film (not shown).
An jedem Träger l ist ein Viergelenkgetriebe, zum Beispiel parallelogrammgetriebe 3, angeschlossen, das mit einem Verstelltrieb, zum Beispiel in Form eines Spindeltriebes 4, und der Träger l mit einer Koppelstange 5 verbunden ist.On each carrier l is a four-bar gear, for example a parallelogram gear 3, connected, with an adjusting drive, for example in the form of a spindle drive 4, and the carrier 1 is connected to a coupling rod 5.
Als Einzelelemente für das parallelogrammgetriebe und für die Koppelstange sind Laschenhebel vorgesehen, die paarweise parallel angeordnet und an den Enden mit Gelenkstellen vers'ehen sind.As individual elements for the parallelogram transmission and for the coupling rod tab levers are provided, which are arranged in parallel in pairs and at the ends are provided with joints.
Alle Spindelmuttern der vorgesehenen Spindeltriebe 4 sind durch Verbindungsstege bzw. durch Verbindungsrohre oder dergleichen Mittel zu einem polygonartigen Ring zusammengefaßt, Jeder Spindeltrieb 4 weist oberhalb dieser Verbindung ein Getrieberad 6 auf, und, alle Getrieberäder 6 sind durch ein endloses Zugmittel 7 getrieblich miteinander verbunden.All spindle nuts of the spindle drives 4 provided are connected by connecting webs or by connecting pipes or similar means to form a polygonal ring In summary, each spindle drive 4 has a gear wheel above this connection 6, and, all gears 6 are driven by an endless traction means 7 connected with each other.
Durch ein Handrad das einem Spindeltrieb zugeordnet ist, sind somit alle Träger 1 und damit auch alle irisblendenartig angeordneten Kontaktkühlkörper synchron zu verstellen.A handwheel that is assigned to a spindle drive is therefore all carriers 1 and thus also all contact heat sinks arranged like an iris diaphragm to adjust synchronously.
Die hohl ausgebildeten Kühlsegmente 2 sind je für sich mit einem Kühlmittelzu- und Abfluß 8 und 9 versehen. Durch die gewählte A-nordnung und Ausbildung der Kühls-egmn e ist eine Kontaktkühlung der Blasfolie mit an allen Punkten Ihres Umfanges gleichem Temperaturgefälle und außerdem eine Kontaktführung der Blasfolie zum Abquetschwalzenaggregat, das: nicht dargestellt ist, gewährleistet.The hollow cooling segments 2 are each with a coolant supply and drain 8 and 9 are provided. Due to the chosen arrangement and design of the cooling units e is a contact cooling of the blown film with the same at all points of its circumference Temperature gradient and also a contact guide of the blown film to the squeeze roller unit, that: is not shown, guaranteed.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702003289 DE2003289A1 (en) | 1970-01-26 | 1970-01-26 | Contact cooling device for blown film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702003289 DE2003289A1 (en) | 1970-01-26 | 1970-01-26 | Contact cooling device for blown film |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2003289A1 true DE2003289A1 (en) | 1971-08-12 |
Family
ID=5760491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19702003289 Pending DE2003289A1 (en) | 1970-01-26 | 1970-01-26 | Contact cooling device for blown film |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2003289A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2322713A1 (en) * | 1975-09-05 | 1977-04-01 | Gloucester Eng Co Inc | EXTRUDE TUBE GUIDE ASSEMBLY |
DE3117806A1 (en) * | 1981-05-06 | 1982-11-18 | Reifenhäuser KG, 5210 Troisdorf | Device for supporting and calibrating blown films |
FR2715342A1 (en) * | 1994-01-24 | 1995-07-28 | Windmoeller & Hoelscher | A device for calibrating and supporting an extruded sheath blown into a sheet bubble. |
EP2801467A1 (en) * | 2013-05-08 | 2014-11-12 | Kdesign GmbH | Calibration device for calibrating an extruded tubular film |
-
1970
- 1970-01-26 DE DE19702003289 patent/DE2003289A1/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2322713A1 (en) * | 1975-09-05 | 1977-04-01 | Gloucester Eng Co Inc | EXTRUDE TUBE GUIDE ASSEMBLY |
DE3117806A1 (en) * | 1981-05-06 | 1982-11-18 | Reifenhäuser KG, 5210 Troisdorf | Device for supporting and calibrating blown films |
FR2715342A1 (en) * | 1994-01-24 | 1995-07-28 | Windmoeller & Hoelscher | A device for calibrating and supporting an extruded sheath blown into a sheet bubble. |
EP2801467A1 (en) * | 2013-05-08 | 2014-11-12 | Kdesign GmbH | Calibration device for calibrating an extruded tubular film |
US9457526B2 (en) | 2013-05-08 | 2016-10-04 | Kdesign Gmbh | Calibration device for calibrating an extruded film tube |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2003289A1 (en) | Contact cooling device for blown film | |
DE3305175C2 (en) | Caterpillar haul-off | |
DE3117806C2 (en) | Device for supporting and calibrating blown films | |
DE1957078C3 (en) | Extruder head | |
EP0062796B1 (en) | Apparatus for transporting hot glass sheets and/or glass sheets to be heated | |
DE2560661C2 (en) | ||
DE2812013C3 (en) | Strip center control device on continuously operating presses | |
DE6940141U (en) | DEVICE FOR THE CONTINUOUS PRODUCTION OF WELDING OR HEAT SEALING NAENTS ON PACKAGING FILMS | |
DE2733864A1 (en) | DEVICE FOR CONTINUOUSLY POURING SEVERAL STRANDS | |
DE931994C (en) | Crawler chassis | |
DE939319C (en) | Endless conveyor, the supporting elements of which are moved within the conveyor line at different speeds | |
DE3922190C2 (en) | ||
DE1611329A1 (en) | Device for attaching color markings to elongated building elements | |
AT298773B (en) | Extraction device for pipes or profiles emerging from an extrusion | |
DE898136C (en) | Device for the production of strips, sheets and rods that are narrowed in the longitudinal direction, the narrowing of which is variable | |
DE329690C (en) | Device for converting a rotary motion into one with different speed ratios | |
DE854783C (en) | Cooling bed, especially for pipes | |
DE332366C (en) | Device switched between the ratchet wheel and its drive to adjust the picture tape in the window of row picture devices | |
CH541438A (en) | Device for gluing rounded book block spines | |
CH677774A5 (en) | ||
DE57199C (en) | Machine for the production of sugar candy chains | |
DE552242C (en) | Device for the continuous production of needles with an eye made of wire | |
DE7141837U (en) | Blown film contact cooling device | |
DE903025C (en) | Curve entry tape | |
DE593016C (en) | Device for applying an elastic layer of plastic material to the individual panes of non-splintering glasses |