EP0200941A1 - Device for covering and shrinking piles of goods with shrinkable hoods - Google Patents
Device for covering and shrinking piles of goods with shrinkable hoods Download PDFInfo
- Publication number
- EP0200941A1 EP0200941A1 EP86104862A EP86104862A EP0200941A1 EP 0200941 A1 EP0200941 A1 EP 0200941A1 EP 86104862 A EP86104862 A EP 86104862A EP 86104862 A EP86104862 A EP 86104862A EP 0200941 A1 EP0200941 A1 EP 0200941A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shrinking
- goods
- nozzle arrangement
- stack
- hood
- 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
Links
- 230000002028 premature Effects 0.000 abstract description 2
- 239000011888 foil Substances 0.000 abstract 5
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
- B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
- B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
- B65B53/066—Mobile frames, hoods, posts or the like
Definitions
- the invention relates to a device for covering and shrinking stacks of goods with shrink hoods, with a parking space or a conveyor for the stack of goods and a device arranged above for pulling a film tube from a reel, wherein a section separated from the film tube and provided with a head weld seam as a shrink hood of is pulled over the stack of goods above and is subjected to heat energy on all sides with a frame-like, vertically movable shrinking device.
- stacks of goods can largely be automatically provided with shrink hoods and shrink-fitted.
- the film tube drawn off from a roll passes a spreading device above the stack of goods and is thereby opened so that it can be pulled over the stack of goods.
- the head weld seam is placed at the same time, so that the shrink hood is closed at the top.
- the shrink hood is then shrunk by supplying thermal energy. This can be done by infrared radiation or with the help of hot air.
- the frame-like shrinking device is guided in the vertical direction over the stack of goods provided with the shrink hood, thermal energy being emitted and the shrink hood being shrunk.
- the object of the invention is to avoid premature shrinkage of the shrink hood or the film tube.
- a nozzle arrangement for producing an air curtain extending essentially horizontally through the device is provided below the device for pulling off, but above the range of movement of the shrinking device, and in that a fan is assigned to the nozzle arrangement.
- This air curtain which extends horizontally above the stack of goods and horizontally through the device, takes the rising warm air with it and removes it, so that it can no longer reach the area of the device for pulling off the film tube.
- the nozzle arrangement is expediently in the region of a Arranged side of the device and on the opposite side a hood with a drainage channel is provided.
- the collecting hood and the exhaust duct prevent the air flow of the air curtain and the warm air entrained by it from moving uncontrollably in the room. Possibly. a suction fan can also be connected to the exhaust duct.
- the nozzle arrangement and an associated blower are expediently fastened to a frame on which the shrinking device is also guided. This enables a compact construction of the device as well as retrofitting of devices in which a nozzle arrangement with a blower was previously missing.
- the nozzle arrangement can be a slotted tube, the outlet slot of which is directed towards the collecting hood and has a length which corresponds at least to the assigned dimension of the shrinking device.
- the outlet slot of which is directed towards the collecting hood and has a length which corresponds at least to the assigned dimension of the shrinking device.
- other types of nozzle arrangements are also possible if it is only ensured that the air curtain thus produced extends continuously across the width of the shrinking device
- the device shown is located in the area of a conveyor 1, on which palletized stacks of goods 2 are moved, which are to be covered with a shrink hood, which is then shrunk on.
- the device includes a portal-like frame 3 with frame posts 4, 5 and an upper frame cross member 6.
- a device 7 for pulling off the film tube 8 from a winding 9 is arranged on the upper frame cross member 6. As indicated in the drawing, the film tube 9 is guided via a plurality of deflection rollers 10 to a spreading device 11, which is only indicated.
- the spreading device also includes a separating welding device, not shown, which separates a section from the film tube 8 and provides this with a head weld. The section separated from the film tube 8 forms a shrink hood, which is then pulled over the stack of goods 2 from above.
- a vertically up and down movable carriage 13 is guided on a column 12 or the like arranged next to the frame 3 and carries a shrinking device 14.
- the shrinking device has the shape of a frame, the inner opening of which is larger than the base area of the stack of goods 2, so that the shrinking device 14 can be moved up and down in the vertical direction, surrounding the stack of goods.
- the shrinking device can work with infrared rays or with hot gas.
- a blower 16 is arranged on a bracket 15 of the column 12 and is connected to a slotted tube 17, which is located below the upper frame cross member 6 but above the uppermost operating position of the shrinking device 14 and extends in the horizontal direction.
- the tube 17 is attached to the frame stem 5 in the embodiment shown.
- the length of the tube corresponds at least to the corresponding dimension the shrinking device 14.
- a catch hood 18 is arranged on the frame stem 4, from which a discharge duct 19 extends.
- the catch hood 18, which in the embodiment shown has a grating 20 on the inlet side, extends essentially parallel to the tube 17 and has a corresponding length.
- the outlet slot 21 of the tube 17 extends substantially over the entire length of the tube 17 and is directed towards the hood 18.
- the warm gases rising during operation of the device are detected by an air curtain 22 emerging from the outlet slot 21 and passed to the hood 18, from which they are drawn off via the exhaust duct 19 be dissipated. Accordingly, the hot gases can no longer reach the area of the upper frame cross member 6 and the devices arranged there.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Packaging Of Special Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Überziehen und Einschrumpfen von Gutstapeln mit Schrumpfhauben, mit einem Stellplatz oder einem Förderer für den Gutstapel und einer darüber angeordneten Einrichtung zum Abziehen eines Folienschlauches von einem Wickel, wobei ein vom Folienschlauch abgetrennter und mit einer Kopfschweißnaht versehener Abschnitt als Schrumpfhaube von oben über den Gutstapel gezogen wird und mit einer rahmenartigen, vertikal beweglichen Schrumpfeinrichtung allseitig mit Wärmeenergie beaufschlagt wird.The invention relates to a device for covering and shrinking stacks of goods with shrink hoods, with a parking space or a conveyor for the stack of goods and a device arranged above for pulling a film tube from a reel, wherein a section separated from the film tube and provided with a head weld seam as a shrink hood of is pulled over the stack of goods above and is subjected to heat energy on all sides with a frame-like, vertically movable shrinking device.
Mit einer derartigen Vorrichtung können Gutstapel weitgehend automatisch mit Schrumpfhauben versehen und eingeschrumpft werden. Der von einem Wickel abgezogene Folienschlauch passiert oberhalb des Gutstapels eine Spreizeinrichtung und wird dadurch geöffnet, so daß er über den Gutstapel gezogen werden kann. Beim Abtrennen des als Schrumpfhaube dienenden Abschnittes vom Folienschlauch wird gleichzeitig die Kopfschweißnaht gelegt, so daß die Schrumpfhaube oben geschlossen ist. Die Schrumpfhaube wird anschließend durch Zufuhr von Wärmeenergie geschrumpft. Das kann durch Infrarotstrahlung oder mit Hilfe von Heißluft erfolgen. Die rahmenartige Schrumpfeinrichtung wird in vertikaler Richtung über den mit der Schrumpfhaube versehenen Gutstapel geführt, wobei Wärmeenergie abgegeben und die Schrumpfhaube geschrumpft wird.With such a device, stacks of goods can largely be automatically provided with shrink hoods and shrink-fitted. The film tube drawn off from a roll passes a spreading device above the stack of goods and is thereby opened so that it can be pulled over the stack of goods. When the section serving as a shrink hood is separated from the film tube, the head weld seam is placed at the same time, so that the shrink hood is closed at the top. The shrink hood is then shrunk by supplying thermal energy. This can be done by infrared radiation or with the help of hot air. The frame-like shrinking device is guided in the vertical direction over the stack of goods provided with the shrink hood, thermal energy being emitted and the shrink hood being shrunk.
Beim Schrumpfen wird aber auch Wärmeenergie an die Umgebung abgegeben. Die dadurch erwärmte Umgebungsluft steigt auf, wobei die Aufwärtsströmung bei Einsatz einer Heißgas-Schrumpfeinrichtung noch verstärkt wird. Die aufsteigende warme Luft erreicht auch die oberhalb des Gutstapels befindliche Einrichtung zum Abziehen des Folienschlauches vom Wickel. Dabei besteht die Gefahr, daß die mitgeführte Wärme zu einer vorzeitigen Schrumpfung des nächsten Abschnittes des Folienschlauches führt.When shrinking, however, thermal energy is also released into the environment. The ambient air thus heated rises, with the upward flow being further increased when a hot gas shrinking device is used. The rising warm air also reaches the device located above the stack of material for pulling the film tube off the roll. There is a risk that the heat carried will cause the next section of the film tube to shrink prematurely.
Aufgabe der Erfindung ist es, ein vorzeitiges Schrumpfen der Schrumpfhaube oder des Folienschlauches zu vermeiden.The object of the invention is to avoid premature shrinkage of the shrink hood or the film tube.
Diese Aufgabe wird dadurch gelöst, daß unterhalb der Einrichtung zum Abziehen, jedoch oberhalb des Bewegungsbereiches der Schrumpfeinrichtung, eine Düsenanordnung zum Erzeugen eines sich im wesentlichen horizontal durch die Vorrichtung erstreckenden Luftvorhanges vorgesehen ist, und daß der Düsenordnung ein Gebläse zugeordnet ist.This object is achieved in that a nozzle arrangement for producing an air curtain extending essentially horizontally through the device is provided below the device for pulling off, but above the range of movement of the shrinking device, and in that a fan is assigned to the nozzle arrangement.
Dieser sich horizontal oberhalb des Gutstapels und horizontal durch die Vorrichtung erstreckende Luftvorhang nimmt die aufsteigende Warmluft mit und führt sie ab, so daß sie nicht mehr in den Bereich der Einrichtung zum Abziehen des Folienschlauches gelangen kann.This air curtain, which extends horizontally above the stack of goods and horizontally through the device, takes the rising warm air with it and removes it, so that it can no longer reach the area of the device for pulling off the film tube.
Zweckmäßig wird die Düsenanordnung im Bereich einer Seite der Vorrichtung angeordnet und wird auf der gegenüberliegenden Seite eine Fanghaube mit einem Abzugskanal vorgesehen. Die Fanghaube und der Abzugskanal verhindern, daß die Luftströmung des Luftvorhanges und die davon mitgerissene Warmluft sich unkontrolliert im Raum bewegen. Ggf. kann an den Abzugskanal auch ein Sauggebläse angeschlossen sein.The nozzle arrangement is expediently in the region of a Arranged side of the device and on the opposite side a hood with a drainage channel is provided. The collecting hood and the exhaust duct prevent the air flow of the air curtain and the warm air entrained by it from moving uncontrollably in the room. Possibly. a suction fan can also be connected to the exhaust duct.
Die Düsenanordnung und ein zugeordnetes Gebläse werden zweckmäßig an einem Gestell befestigt, an dem auch die Schrumpfeinrichtung geführt ist. Das ermöglicht einen kompakten Aufbau der Vorrichtung sowie außerdem auch die Nachrüstung von Vorrichtungen, bei denen bisher eine Düsenanordnung mit Gebläse fehlt.The nozzle arrangement and an associated blower are expediently fastened to a frame on which the shrinking device is also guided. This enables a compact construction of the device as well as retrofitting of devices in which a nozzle arrangement with a blower was previously missing.
Im einfachsten Fall kann die Düsenanordnung ein geschlitztes Rohr sein, dessen auf die Fanghaube gerich- teter Auslaßschlitz eine Länge aufweist, die wenigstens der zugeordneten Abmessung der Schrumpfeinrichtung entspricht. Selbstverständlich sind auch andere Ausführung gen von Düsenanordnungen möglich, wenn nur gewährleistet ist, daß der damit erzeugte Luftvorhang sich durch- gehend über die Breite der Schrumpfeinrichtung erstrecktIn the simplest case, the nozzle arrangement can be a slotted tube, the outlet slot of which is directed towards the collecting hood and has a length which corresponds at least to the assigned dimension of the shrinking device. Of course, other types of nozzle arrangements are also possible if it is only ensured that the air curtain thus produced extends continuously across the width of the shrinking device
Im folgenden wird ein in der Zeichnung dargestelltes Ausführungsbeispiel der Erfindung erläutert; die einzige Figur zeigt schematisch eine Seitenansicht einer Vorrichtung zum Überziehen und Einschrumpfen von Gutstapeln mit Schrumpfhauben.In the following an embodiment of the invention shown in the drawing is explained; the single figure shows schematically a side view of a device for covering and shrinking stacks of goods with shrink hoods.
Die dargestellte Vorrichtung befindet sich im Bereich eines Förderers 1, auf dem palettierte Gutstapel 2 bewegt werden, die mit einer Schrumpfhaube überzogen werden sollen, welche dann eingeschrumpft wird.The device shown is located in the area of a
Zur Vorrichtung gehört ein portalähnliches Gestell 3 mit Rahmenstielen 4,5 und einer oberen Rahmentraverse 6.The device includes a portal-
An der oberen Rahmentraverse 6 ist eine Einrichtung 7 zum Abziehen des Folienschlauches 8 von einem Wickel 9 angeordnet. Wie in der Zeichnung angedeutet, wird der Folienschlauch 9 über mehrere Umlenkrollen 10 zu einer nur angedeuteten Spreizeinrichtung 11 geführt. Zur Spreizeinrichtung gehört auch eine nicht dargestellte Trennschweißeinrichtung, die vom Folienschlauch 8 einen Abschnitt abtrennt und diesen mit einer Kopfschweißnaht versieht. Der vom Folienschlauch 8 abgetrennte Abschnitt bildet eine Schrumpfhaube, die dann von oben über den Gutstapel 2 gezogen wird.A device 7 for pulling off the film tube 8 from a winding 9 is arranged on the upper frame cross member 6. As indicated in the drawing, the film tube 9 is guided via a plurality of
An einer neben dem Gestell 3 angeordneten Säule 12 oder dergleichen ist ein vertikal auf- und abbeweglicher Wagen 13 geführt, der eine Schrumpfeinrichtung 14 trägt. Die Schrumpfeinrichtung hat die Form eines Rahmens, dessen innere Öffnung größer ist als die Grundfläche des Gutstapels 2, so daß die Schrumpfeinrichtung 14 in vertikaler Richtung, den Gutstapel allseitig umgebend auf- und abbewegt werden kann. Die Schrumpfeinrichtung kann mit Infrarotstrahlen oder mit Heißgas arbeiten.A vertically up and down
Auf einer Konsole 15 der Säule 12 ist ein Gebläse 16 angeordnet, welches mit einem geschlitzten Rohr 17 verbunden ist, das sich unterhalb der oberen Rahmentraverse 6 jedoch oberhalb der obersten Betriebsstellung der Schrumpfeinrichtung 14 befindet und in horizontaler Richtung erstreckt. Das Rohr 17 ist bei der dargestellten Ausführung am Rahmenstiel 5 befestigt. Die Länge des Rohres entspricht wenigstens der entsprechenden Abmessung der Schrumpfeinrichtung 14.A
Auf der dem Rohr 17 gegenüberliegenden Seite der Vorrichtung ist am Rahmenstiel 4 eine Fanghaube 18 angeordnet, von der ein Abzugskanal 19 ausgeht. Die Fanghaube 18, die bei der dargestellten Ausführung einlaßseitig ein Gitterrost 20 aufweist, erstreckt sich im wesentlichen parallel zum Rohr 17 und besitzt eine entsprechende Länge. Der Auslaßschlitz 21 des Rohrs 17 erstreckt sich im wesentlichen über die gesamte Länge des Rohrs 17 und ist auf die Fanghaube 18 gerichtet.On the side of the device opposite the
Die beim Betrieb der Vorrichtung, insbesondere beim Schrumpfen aufsteigenden Warmgase, die in der Zeichnung durch Pfeile angedeutet sind, werden von einem aus dem Auslaßschlitz 21 austretenden Luftvorhang 22 er- ... faßt und zur Fanghaube 18 geleitet, von der sie über den Abzugskanal 19 abgeführt werden. Die Warmgase können dementsprechend nicht mehr bis in den Bereich der oberen Rahmentraverse 6 und der dort angeordneten Einrichtungen gelangen.The warm gases rising during operation of the device, in particular when shrinking, which are indicated in the drawing by arrows, are detected by an
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86104862T ATE66656T1 (en) | 1985-05-10 | 1986-04-09 | DEVICE FOR COVERING AND SHRINKING STACKS OF GOODS WITH SHRINK HOODS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8513892U DE8513892U1 (en) | 1985-05-10 | 1985-05-10 | Device for covering and shrinking stacks of goods with shrink hoods |
DE8513892U | 1985-05-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0200941A1 true EP0200941A1 (en) | 1986-11-12 |
EP0200941B1 EP0200941B1 (en) | 1991-08-28 |
Family
ID=6780961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86104862A Expired - Lifetime EP0200941B1 (en) | 1985-05-10 | 1986-04-09 | Device for covering and shrinking piles of goods with shrinkable hoods |
Country Status (5)
Country | Link |
---|---|
US (1) | US4651508A (en) |
EP (1) | EP0200941B1 (en) |
JP (1) | JPH0662152B2 (en) |
AT (1) | ATE66656T1 (en) |
DE (2) | DE8513892U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3714811A1 (en) * | 1987-05-04 | 1988-11-17 | Kurt Lachenmeier A S Kl Indust | Apparatus for shrinking a plastic foil onto goods to be packaged |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59811838D1 (en) * | 1998-11-05 | 2004-09-23 | Lachenmeier Kurt Aps | Method and device for attaching and shrinking a packaging hood onto an object |
ES2191898T3 (en) * | 1998-11-05 | 2003-09-16 | Lachenmeier Kurt Aps | PROCEDURE AND DEVICE FOR THE CONTRACTION OF A SHEET ON AN OBJECT. |
PL202615B1 (en) * | 1999-01-28 | 2009-07-31 | Msk Verpackung Syst Gmbh | Device for shrinking a shrink-wrap film |
EP1059233A1 (en) * | 1999-04-16 | 2000-12-13 | Kl- Lachenmeier A/S | Method and device for packaging objects in a film-hood |
FR2792610B1 (en) * | 1999-04-26 | 2001-07-13 | Thimon | PROCESS FOR SHRINKAGE OF A FLEXIBLE SHEATH IN THERMALLY SHRINKABLE PLASTIC MATERIAL ON A PALLETIZED LOAD, AND MACHINE FOR CARRYING OUT SAID METHOD |
DE202005020192U1 (en) * | 2005-10-24 | 2006-05-24 | MSK-Verpackungs-Systeme Gesellschaft mit beschränkter Haftung | Device for shrinking a heat-shrinkable film placed around a, in particular palletized, stack of goods |
DE202010001587U1 (en) * | 2010-01-29 | 2010-04-22 | Msk - Verpackungs-Systeme Gmbh | Device for wrapping a stack of goods with a film |
EP2740673B1 (en) * | 2012-12-06 | 2015-07-08 | MSK - Verpackungs-Systeme GmbH | Method and device for applying a film to a stack of goods |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003833A1 (en) * | 1981-05-04 | 1982-11-11 | Rasztar Magnus | Method and apparatus for the packing of stacked goods with shrink foil |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3930790A (en) * | 1971-04-08 | 1976-01-06 | Ethyl Corporation | Method and apparatus for shrinking plastic film over grouped articles |
DE3208544A1 (en) * | 1982-03-10 | 1983-09-15 | INDAG Gesellschaft für Industriebedarf mbH, 6900 Heidelberg | METHOD AND DEVICE FOR APPLYING SHRINK FILMS ON PALLETED GOETER STACKS |
DE3303795A1 (en) * | 1983-02-04 | 1984-08-16 | JK-Josef Kratz GmbH, 5461 Windhagen | Body irradiator |
-
1985
- 1985-05-10 DE DE8513892U patent/DE8513892U1/en not_active Expired
-
1986
- 1986-04-09 AT AT86104862T patent/ATE66656T1/en not_active IP Right Cessation
- 1986-04-09 DE DE86104862T patent/DE3681060D1/de not_active Expired - Lifetime
- 1986-04-09 EP EP86104862A patent/EP0200941B1/en not_active Expired - Lifetime
- 1986-04-15 US US06/852,301 patent/US4651508A/en not_active Expired - Lifetime
- 1986-05-09 JP JP61105054A patent/JPH0662152B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003833A1 (en) * | 1981-05-04 | 1982-11-11 | Rasztar Magnus | Method and apparatus for the packing of stacked goods with shrink foil |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3714811A1 (en) * | 1987-05-04 | 1988-11-17 | Kurt Lachenmeier A S Kl Indust | Apparatus for shrinking a plastic foil onto goods to be packaged |
DE3714811C2 (en) * | 1987-05-04 | 1999-04-29 | Kurt Lachenmeier A S Kl Indust | Device for covering and shrinking a plastic film onto goods to be packaged |
Also Published As
Publication number | Publication date |
---|---|
US4651508A (en) | 1987-03-24 |
JPS61259926A (en) | 1986-11-18 |
DE8513892U1 (en) | 1985-09-05 |
ATE66656T1 (en) | 1991-09-15 |
DE3681060D1 (en) | 1991-10-02 |
JPH0662152B2 (en) | 1994-08-17 |
EP0200941B1 (en) | 1991-08-28 |
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