EP1522494A1 - Apparatus for wrapping and braking a film - Google Patents

Apparatus for wrapping and braking a film Download PDF

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Publication number
EP1522494A1
EP1522494A1 EP02022013A EP02022013A EP1522494A1 EP 1522494 A1 EP1522494 A1 EP 1522494A1 EP 02022013 A EP02022013 A EP 02022013A EP 02022013 A EP02022013 A EP 02022013A EP 1522494 A1 EP1522494 A1 EP 1522494A1
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EP
European Patent Office
Prior art keywords
clamping
film
braking
tensioning
lever
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
EP02022013A
Other languages
German (de)
French (fr)
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EP1522494B1 (en
Inventor
Gerd Heikaus
Lothar Heikaus
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.)
Illinois Tool Works Inc
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Illinois Tool Works Inc
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
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Priority to AT02022013T priority Critical patent/ATE388085T1/en
Priority to DE50211865T priority patent/DE50211865D1/en
Priority to ES02022013T priority patent/ES2301598T3/en
Priority to EP02022013A priority patent/EP1522494B1/en
Publication of EP1522494A1 publication Critical patent/EP1522494A1/en
Application granted granted Critical
Publication of EP1522494B1 publication Critical patent/EP1522494B1/en
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    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/04—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated
    • B65B11/045—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated by rotating platforms supporting the articles

Definitions

  • the invention relates to a winding device for winding in particular on a pallet arranged objects with foil. Furthermore, the invention relates a braking device for such winding devices.
  • the objects on the Pallet By wrapping, for example, objects stacked on a pallet, such as Cartons, with a thin plastic film, the objects on the Pallet fixed for transport, for example.
  • the foil used to increase the Packaging security can also be pre-stretched, has essentially the The task is to keep the items safely on the pallet.
  • the foil usually wound as a 40 to 60 cm wide film strip on a roll is often wrapped by hand around the pallet.
  • winding devices such as pallet wrapping machines, by which an automatic wrapping of the pallet with foil is carried out can.
  • Such winding devices have for receiving the film roll one Roll holder on.
  • the roll holder is a rotatable shaft on which the film roll is attached.
  • the film is unwound from the roll of film.
  • the management device may be also act around a role.
  • the pressure roller is equipped with a braking device connected. This makes it possible, preferably with soft rubber Brake coated coating roller.
  • Electromagnetic brakes are constructive complicated and therefore expensive.
  • the object of the invention is to provide a winding device for wrapping in particular arranged on a pallet objects with foil and a Braking device for to provide such winding devices, wherein the braking of a Pressure roller by a structurally simple and inexpensive construction he follows.
  • the object is achieved by a winding device according to claim 1 or a braking device according to claim 2.
  • the winding device has a roll holder for Receiving a film rolls and a guide device for guiding the of the film roll unwound film.
  • the pressure roller preferably has one Slipping of the film preventing coating, in particular a Soft rubber coating, on.
  • the pressure roller with a connected to the first brake element, wherein against the first brake element a second brake element for clamping the film is pressed.
  • Brake element is, for example, a brake disc and against the brake disc pushing brake shoes.
  • a clamping device provided, which is preferably connected to the first brake element, wherein by the tensioning device, the two brake elements compressible are.
  • the clamping device according to the invention a clamping lever, wherein by operating the tension lever, i. for example, by turning or Relocation of the clamping lever in a braking position, a defined braking force is produced.
  • the invention relates to a braking device for a winding device for wrapping objects arranged in particular on a pallet with foil.
  • the braking device has a pressure roller for tensioning the film, one connected to the pressure roller first brake element and a second Braking element, which is used to tension the film against the first brake element is depressible, up.
  • the Brake device according to the invention also a clamping device for Compressing the brake elements, wherein the tensioning device a Has clamping lever, so that by pressing the clamping lever in a Braking a defined braking force is generated.
  • the brake device has the same advantages as the winding device described above.
  • the clamping lever is firmly connected to a clamping element.
  • the Clamping element according to the invention is designed such that by turning, i. Actuating or moving the clamping lever together with the clamping element in the braking position, the braking elements are pressed against each other.
  • the clamping element preferably has at least one clamping surface.
  • the clamping surface is at a distance to the axis of rotation of the clamping lever arranged. By turning or pressing the clamping lever becomes the clamping surface thus rotated about the axis of rotation of the clamping lever and in the braking position brought. Due to the distance of the clamping surface to the axis of rotation of Clamping lever takes place when turning the clamping lever in the braking position automatically squeezing the two brake elements.
  • the clamping element at least two clamping surfaces, which at a different distance to Rotary axis are arranged. Because of the different distance it is possible, different pressure forces between the two brake elements to create. Due to the clamping surface, which is a greater distance to the axis of rotation has a greater braking force is generated when the clamping lever so is actuated that this clamping surface is pivoted in the braking position. In particular, it is possible to have several clamping surfaces with different ones Provide distances to the axis of rotation, so that the braking force in several Steps is adjustable. It is also possible, the clamping element as an eccentric form, so that the individual clamping surfaces merge into each other.
  • the clamping surface presses preferably against a contact surface, the part of one of the two brake elements is or is connected to one of the two brake elements.
  • a spring element provided between the Clamping device, in particular the clamping element and the first or second brake element.
  • the spring element at it is an elastic body or preferably a coil spring act by operating the tensioning device, i. by flipping of the clamping lever, compressed. By the force of the spring element takes place thus the compression of the two brake elements.
  • the tensioning device i. when turning the clamping lever from the Brake position in an untensioned position
  • by the spring element ensures that the two brake elements are pressed apart.
  • the film with low friction pulled between the guide device and the pressure roller be attached for example, to the objects to be wrapped become. Thereafter, then takes place a folding of the clamping lever in or a the brake positions to the desired braking force and thus the desired To create tension of the film.
  • a winding device for wrapping, for example, on a pallet 10 arranged objects 12, such as stacked Cartons, has a receiving device 14. On the recording device 14, the pallet is arranged. As a receiving device 14 is for example a Turntable provided which is rotatable about an axis 16. Furthermore, the Winding device on a winding tower 18. The winding tower 18 carries a Roller holder 20 which is vertically displaceable in the direction of the arrow 22. From the roll holder 20, the film roll 24 is supported. By turning the pallet 10 together with the boxes 12 about the axis 16 is a film 26 to the Wrapped cartons. By simultaneously moving the roll holder 20 in vertical direction is the wrapping of the cartons over the entire height. Usually, a height sensor is provided by which the height of the on the Pallet 10 stacked objects is perceived. By the Height sensor, the vertical displacement of the film roll 24 is limited.
  • the roller holder 26 has a substantially L-shaped holding part 28, the a mandrel 30 carries, on which the film roll 24 can be plugged.
  • the film roll 24 is usually rotatable together with the mandrel 30 with the bracket 28th connected.
  • the roll holder 28 is connected to a chain 32. By Drive the chain 32 is a vertical displacement of the roll holder 20 in Direction of the arrow 22 (Fig. 1) possible.
  • guide rails 34 are connected to which four rollers 36 issue.
  • the L-shaped bracket 28 of the roll holder 20 is also a Guiding device 38 connected.
  • the illustrated embodiment is it is in the guide device 38 to a freely rotatable with the bracket 28th and a holder 40 connected role.
  • a pressure roller 42 is provided in the longitudinal direction of the roller 38 .
  • the two rollers 38,42 thus touch each other Longitudinal direction along a line.
  • the pressure roller 42 is provided with an inventive Braking device 44 connected.
  • the braking device 44 has a clamping lever 46 with handle 48. Of the Tensioning lever 46 is rotatably mounted in a shaft 50 of the pressure roller 42. in this connection the axis of rotation 52 of the lever 46 is perpendicular to the longitudinal direction of the Pressure roller 42. With the lever 46, a clamping element 54 is firmly connected. The Clamping element 54 presses with a first clamping surface 56 in the in FIGS. 3 and 4 illustrated brake position against a contact surface 58 of a annular, the shaft 50 surrounding transmission part 60. Of the Transmission part 60 is transmitted to a force spring 62, the shaft 50th surrounds and between the transmission part 60 and fixed to the bracket 28th connected bracket 40 is arranged.
  • the brake device 44 is easy to operate.
  • the lever 46 By Turning the lever 46 in the direction of an arrow 68 (FIG. 4) becomes the Clamping element 54, for example, rotated in Fig. 4 by 90 ° to the left. hereby is located on the contact surface 58 of the transmission part 60, a surface 70 of the Clamping element 54 at. Since the surface 70 to the axis of rotation 52 of the clamping lever 46th has a small distance than the clamping surface 56 to the rotation axis 52, There is a relaxation of the spring 62.
  • the spring 62 is preferably such designed that the two brake elements 64,66 at concern of the surface 70 at the transmission part 60 are pressed apart, so that no or only still a very low friction between the two brake elements 64,66 occurs. In this position, the film 26 can easily between the two roles 38, 42 (FIG. 2) and, for example, on the pallet 10 (FIG. 1). be attached.
  • the braking force between the two brake elements 64,66 can at least one of the two brake elements 64,66 in the longitudinal direction of Shaft 50 slidably mounted.
  • the first Bremselement 64 via a thread and a suitable lock nut with the Be connected to shaft 50.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Braking Arrangements (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

Wrapping device for wrapping objects, especially arranged on a pallet, with foil comprises a roll holder for a foil roll, a guide device for guiding the foil unwound from the foil roll, a pressure roller (42) pressing against the guide device to tension the foil, a first braking element (64) connected to the pressure roller and against which a second braking element (66) is pressed to tension the foil, and a clamping device for clamping the braking elements together. The clamping device has a clamping lever (46) that when actuated into a braking position generates a defined braking force between the braking elements. An independent claim is also included for a braking device (44) for a winding device.

Description

Die Erfindung betrifft eine Wickelvorrichtung zum Wickeln von insbesondere auf einer Palette angeordneten Gegenständen mit Folie. Ferner betrifft die Erfindung eine Bremsvorrichtung für derartige Wickelvorrichtungen.The invention relates to a winding device for winding in particular on a pallet arranged objects with foil. Furthermore, the invention relates a braking device for such winding devices.

Durch Umwickeln von beispielsweise auf Palette gestapelten Gegenständen, wie Kartons, mit einer dünnen Kunststofffolie werden die Gegenstände auf der Palette beispielsweise für den Transport fixiert. Die Folie, die zum Erhöhen der Verpackungssicherheit auch vorgestreckt sein kann, hat im Wesentlichen die Aufgabe, dass die Gegenstände auf der Palette sicher gehalten werden. Die Folie, die üblicherweise als 40 bis 60 cm breites Folienband auf einer Rolle aufgewickelt ist, wird häufig per Hand um die Palette gewickelt.By wrapping, for example, objects stacked on a pallet, such as Cartons, with a thin plastic film, the objects on the Pallet fixed for transport, for example. The foil used to increase the Packaging security can also be pre-stretched, has essentially the The task is to keep the items safely on the pallet. The foil, usually wound as a 40 to 60 cm wide film strip on a roll is often wrapped by hand around the pallet.

Ferner sind Wickelvorrichtungen, wie Paletten-Einwickelmaschinen, bekannt, durch die ein automatisches Umwickeln der Palette mit Folie durchgeführt werden kann. Derartige Wickelvorrichtungen weisen zur Aufnahme der Folienrolle eine Rollenhalterung auf. Bei der Rollenhalterung handelt es sich beispielsweise um eine drehbare Welle, auf die die Folienrolle aufgesteckt wird. Zum Umwickeln der Gegenstände wird die Folie von der Folienrolle abgewickelt. Um die Folie zu spannen oder ein Strecken der Folie während des Umwickelns der Gegenstände zu ermöglichen, ist die Folie üblicherweise zwischen einer Führungseinrichtung und einer Andrückrolle hindurchgeführt. Bei der Führungseinrichtung kann es sich ebenfalls um eine Rolle handeln. Die Andrückrolle ist mit einer Bremsvorrichtung verbunden. Hierdurch ist es möglich, die vorzugsweise mit Weichgummi beschichtete Andrückrolle abzubremsen. Da die Folie insbesondere auf Grund der Weichgummibeschichtung nicht oder nur geringfügig über die Andrückrolle rutschen kann, wird durch das gebremste Drehen bzw. die Drehgeschwindigkeit der Andrückrolle die Spannung bzw. Vorspannung in der Folie realisiert. Je stärker die Andrückrolle gebremst wird, desto größer ist die Vorspannung in der Folie.Furthermore, winding devices, such as pallet wrapping machines, are known, by which an automatic wrapping of the pallet with foil is carried out can. Such winding devices have for receiving the film roll one Roll holder on. For example, the roll holder is a rotatable shaft on which the film roll is attached. To wrap the Objects, the film is unwound from the roll of film. To the slide too tension or stretch the film while wrapping the articles to allow the film is usually between a guide device and a pressure roller passed. The management device may be also act around a role. The pressure roller is equipped with a braking device connected. This makes it possible, preferably with soft rubber Brake coated coating roller. As the film is particularly due to the Soft rubber coating not or only slightly above the pressure roller slipping is determined by the braked rotation or the rotational speed the pressure roller realized the tension or bias in the film. ever stronger the pressure roller is braked, the greater the preload in the Foil.

Zum Einstellen der Bremskraft können beispielsweise elektromagnetische Bremsen vorgesehen sein. Elektromagnetische Bremsen sind jedoch konstruktiv aufwändig und daher teuer.To set the braking force, for example, electromagnetic Be provided brakes. Electromagnetic brakes, however, are constructive complicated and therefore expensive.

Aufgabe der Erfindung ist es, eine Wickelvorrichtung zum Umwickeln von insbesondere auf einer Palette angeordneten Gegenständen mit Folie sowie eine Bremsvorrichtung für derartige Wickelvorrichtungen zu schaffen, bei welcher das Bremsen einer Andrückrolle durch einen konstruktiv einfachen und kostengünstigen Aufbau erfolgt.The object of the invention is to provide a winding device for wrapping in particular arranged on a pallet objects with foil and a Braking device for to provide such winding devices, wherein the braking of a Pressure roller by a structurally simple and inexpensive construction he follows.

Die Lösung der Aufgabe erfolgt durch eine Wickelvorrichtung gemäß Anspruch 1 bzw. eine Bremsvorrichtung gemäß Anspruch 2.The object is achieved by a winding device according to claim 1 or a braking device according to claim 2.

Die erfindungsgemäße Wickelvorrichtung weist eine Rollenhalterung zur Aufnahme einer Folienrollen und eine Führungseinrichtung zum Führen der von der Folienrolle abgewickelten Folie auf. Gegen die Führungseinrichtung, bei der es sich um eine Rolle handeln kann, drückt eine Andrückrolle. Hierdurch wird ein Spannen der Folie realisiert. Die Andrückrolle weist vorzugsweise eine ein Durchrutschen der Folie verhindernde Beschichtung, insbesondere eine Weichgummibeschichtung, auf. Erfindungsgemäß ist die Andrückrolle mit einem ersten Bremselement verbunden, wobei gegen das erste Bremselement ein zweites Bremselement zum Spannen der Folie andrückbar ist. Bei dem Bremselement handelt es sich beispielsweise um eine Bremsscheibe und gegen die Bremsscheibe drückende Bremsbacken. Ferner ist eine Spannvorrichtung vorgesehen, die vorzugsweise mit dem ersten Bremselement verbunden ist, wobei durch die Spannvorrichtung die beiden Bremselemente zusammendrückbar sind. Hierzu weist die Spannvorrichtung erfindungsgemäß einen Spannhebel auf, wobei durch Betätigen des Spannhebels, d.h. beispielsweise durch Drehen oder Umlegen des Spannhebels in eine Bremsstellung, eine definierte Bremskraft erzeugt wird. Erfindungsgemäß ist somit lediglich das Umlegen bzw. Betätigen eines Spannhebels erforderlich, um die beiden Bremselemente zusammen zu drücken bzw. die Bremsbacke gegen die Bremsscheibe zu drücken. Es handelt sich hierbei um einen einfachen und somit kostengünstigen Aufbau. Insbesondere ist eine derartige Bremsvorrichtung mit einem Spannhebel sehr wartungsfreundlich. The winding device according to the invention has a roll holder for Receiving a film rolls and a guide device for guiding the of the film roll unwound film. Against the management device, at the it can be a roller presses a pressure roller. This will be a Clamping the film realized. The pressure roller preferably has one Slipping of the film preventing coating, in particular a Soft rubber coating, on. According to the invention, the pressure roller with a connected to the first brake element, wherein against the first brake element a second brake element for clamping the film is pressed. In which Brake element is, for example, a brake disc and against the brake disc pushing brake shoes. Furthermore, a clamping device provided, which is preferably connected to the first brake element, wherein by the tensioning device, the two brake elements compressible are. For this purpose, the clamping device according to the invention a clamping lever, wherein by operating the tension lever, i. for example, by turning or Relocation of the clamping lever in a braking position, a defined braking force is produced. Thus, according to the invention, only the folding or pressing a clamping lever required to the two brake elements together Press or press the brake shoe against the brake disc. It deals This is a simple and therefore cost-effective structure. In particular, such a brake device with a clamping lever is very easy to maintain.

Ferner betrifft die Erfindung eine Bremsvorrichtung für eine Wickelvorrichtung zum Umwickeln von insbesondere auf einer Palette angeordneten Gegenständen mit Folie. Die Bremsvorrichtung weist eine Andrückrolle zum Spannen der Folie, ein mit der Andrückrolle verbundenes erstes Bremselement und ein zweites Bremselement, das zum Spannen der Folie gegen das erste Bremselement drückbar ist, auf. Entsprechend der Wickelvorrichtung weist die erfindungsgemäße Bremsvorrichtung ebenfalls eine Spannvorrichtung zum Zusammendrücken der Bremselemente auf, wobei die Spannvorrichtung einen Spannhebel aufweist, so dass durch Betätigen des Spannhebels in eine Bremsstellung eine definierte Bremskraft erzeugt wird. Die Bremsvorrichtung weist dieselben Vorteile wie die vorstehend beschriebene Wickelvorrichtung auf.Furthermore, the invention relates to a braking device for a winding device for wrapping objects arranged in particular on a pallet with foil. The braking device has a pressure roller for tensioning the film, one connected to the pressure roller first brake element and a second Braking element, which is used to tension the film against the first brake element is depressible, up. According to the winding device, the Brake device according to the invention also a clamping device for Compressing the brake elements, wherein the tensioning device a Has clamping lever, so that by pressing the clamping lever in a Braking a defined braking force is generated. The brake device has the same advantages as the winding device described above.

Die folgende Beschreibung der bevorzugten Weiterbildungen betrifft sowohl die Wickelvorrichtung als auch die Bremsvorrichtung.The following description of the preferred embodiments relates to both Winding device and the braking device.

Vorzugsweise ist der Spannhebel mit einem Spannelement fest verbunden. Das Spannelement ist erfindungsgemäß derart ausgebildet, dass durch Drehen, d.h. Betätigen oder Umlegen des Spannhebels zusammen mit dem Spannelement in die Bremsstellung, die Bremselemente gegeneinandergedrückt werden. Vorzugsweise weist das Spannelement hierzu mindestens eine Spannfläche auf. Die Spannfläche ist in einem Abstand zur Drehachse des Spannhebels angeordnet. Durch Drehen bzw. Betätigen des Spannhebels wird die Spannfläche somit um die Drehachse des Spannhebels gedreht und in die Bremsstellung gebracht. Auf Grund des Abstandes der Spannfläche zur Drehachse des Spannhebels erfolgt beim Drehen des Spannhebels in die Bremsstellung automatisch ein Zusammendrücken der beiden Bremselemente.Preferably, the clamping lever is firmly connected to a clamping element. The Clamping element according to the invention is designed such that by turning, i. Actuating or moving the clamping lever together with the clamping element in the braking position, the braking elements are pressed against each other. For this purpose, the clamping element preferably has at least one clamping surface. The clamping surface is at a distance to the axis of rotation of the clamping lever arranged. By turning or pressing the clamping lever becomes the clamping surface thus rotated about the axis of rotation of the clamping lever and in the braking position brought. Due to the distance of the clamping surface to the axis of rotation of Clamping lever takes place when turning the clamping lever in the braking position automatically squeezing the two brake elements.

Bei einer besonders bevorzugten Ausführungsform weist das Spannelement mindestens zwei Spannflächen auf, die in einem unterschiedlichen Abstand zur Drehachse angeordnet sind. Auf Grund des unterschiedlichen Abstandes ist es möglich, unterschiedliche Andrückkräfte zwischen den beiden Bremselementen zu erzeugen. Durch die Spannfläche, die einen größeren Abstand zur Drehachse aufweist, wird eine größere Bremskraft erzeugt, wenn der Spannhebel derart betätigt wird, dass diese Spannfläche in die Bremsstellung geschwenkt wird. Insbesondere ist es möglich, mehrere Spannflächen mit unterschiedlichen Abständen zur Drehachse vorzusehen, so dass die Bremskraft in mehreren Stufen einstellbar ist. Es ist ferner möglich, das Spannelement als Exzenter auszubilden, so dass die einzelnen Spannflächen ineinander übergehen. Es erfolgt somit eine kontinuierliche Zunahme des Abstandes zwischen der Spannfläche und der Drehachse des Spannhebels beim Drehen der Spannhebels. Hierdurch erfolgt eine kontinuierliche Zunahme der Bremskraft. Die Spannfläche drückt vorzugsweise gegen eine Anlagefläche, die Teil eines der beiden Bremselemente ist oder mit einem der beiden Bremselemente verbunden ist.In a particularly preferred embodiment, the clamping element at least two clamping surfaces, which at a different distance to Rotary axis are arranged. Because of the different distance it is possible, different pressure forces between the two brake elements to create. Due to the clamping surface, which is a greater distance to the axis of rotation has a greater braking force is generated when the clamping lever so is actuated that this clamping surface is pivoted in the braking position. In particular, it is possible to have several clamping surfaces with different ones Provide distances to the axis of rotation, so that the braking force in several Steps is adjustable. It is also possible, the clamping element as an eccentric form, so that the individual clamping surfaces merge into each other. It takes place Thus, a continuous increase in the distance between the clamping surface and the axis of rotation of the clamping lever when turning the clamping lever. This is done a continuous increase in braking power. The clamping surface presses preferably against a contact surface, the part of one of the two brake elements is or is connected to one of the two brake elements.

Bei einer besonders bevorzugten Ausführungsform ist zwischen der Spannvorrichtung, insbesondere dem Spannelement und dem ersten oder zweiten Bremselement, ein Federelement vorgesehen. Das Federelement, bei dem es sich um einen elastischen Körper oder vorzugsweise eine Spiralfeder handeln kann, wird durch Betätigen der Spannvorrichtung, d.h. durch Umlegen des Spannhebels, zusammengedrückt. Durch die Kraft des Federelements erfolgt somit das Zusammendrücken der beiden Bremselemente. Andererseits ist beim Lösen der Spannvorrichtung, d.h. beim Drehen des Spannhebels aus der Bremsstellung in eine ungespannte Stellung, durch das Federelement sichergestellt, dass die beiden Bremselement auseinandergedrückt werden. Hierdurch kann in der entspannten Stellung die Folie mit geringer Reibung zwischen der Führungseinrichtung und der Andrückrolle hindurchgezogen werden, um beispielsweise an den zu umwickelnden Gegenständen befestigt zu werden. Hiernach erfolgt sodann ein Umlegen des Spannhebels in die bzw. eine der Bremsstellungen, um die gewünschte Bremskraft und damit die gewünschte Spannung der Folie zu erzeugen. In a particularly preferred embodiment is between the Clamping device, in particular the clamping element and the first or second brake element, a spring element provided. The spring element, at it is an elastic body or preferably a coil spring act by operating the tensioning device, i. by flipping of the clamping lever, compressed. By the force of the spring element takes place thus the compression of the two brake elements. On the other hand, at Releasing the tensioning device, i. when turning the clamping lever from the Brake position in an untensioned position, by the spring element ensures that the two brake elements are pressed apart. As a result, in the relaxed position, the film with low friction pulled between the guide device and the pressure roller be attached, for example, to the objects to be wrapped become. Thereafter, then takes place a folding of the clamping lever in or a the brake positions to the desired braking force and thus the desired To create tension of the film.

Nachfolgend wird die Erfindung anhand einer bevorzugten Ausführungsform unter Bezugnahme auf die anliegenden Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine schematische Seitenansicht einer Wickelvorrichtung,
Fig. 2
eine schematische perspektivische Detailansicht der Rollenhalterung mit Bremsvorrichtung,
Fig. 3
eine schematische Schnittansicht der Bremsvorrichtung und
Fig. 4
eine schematische Detailansicht des Spannelements.
The invention will be explained in more detail with reference to a preferred embodiment with reference to the accompanying drawings. Show it:
Fig. 1
a schematic side view of a winding device,
Fig. 2
a schematic perspective detail view of the roll holder with braking device,
Fig. 3
a schematic sectional view of the braking device and
Fig. 4
a schematic detail view of the clamping element.

Eine Wickelvorrichtung zum Umwickeln von beispielsweise auf einer Palette 10 angeordneten Gegenständen 12, wie beispielsweise übereinandergestapelten Kartons, weist eine Aufnahmeeinrichtung 14 auf. Auf der Aufnahmeeinrichtung 14 ist die Palette angeordnet. Als Aufnahmeeinrichtung 14 ist beispielsweise ein Drehteller vorgesehen, der um eine Achse 16 drehbar ist. Ferner weist die Wickelvorrichtung einen Wickelturm 18 auf. Der Wickelturm 18 trägt eine Rollenhalterung 20, die vertikal in Richtung des Pfeils 22 verschiebbar ist. Von der Rollenhalterung 20 wird die Folienrolle 24 getragen. Durch Drehen der Palette 10 zusammen mit den Kartons 12 um die Achse 16 wird eine Folie 26 um die Kartons gewickelt. Durch gleichzeitiges Verschieben der Rollenhalterung 20 in vertikale Richtung erfolgt das Umwickeln der Kartons über die gesamte Hö-he. Üblicherweise ist ein Höhensensor vorgesehen, durch den die Höhe der auf der Palette 10 gestapelten Gegenstände wahrgenommen wird. Durch den Höhensensor wird das vertikale Verschieben der Folienrolle 24 beschränkt.A winding device for wrapping, for example, on a pallet 10 arranged objects 12, such as stacked Cartons, has a receiving device 14. On the recording device 14, the pallet is arranged. As a receiving device 14 is for example a Turntable provided which is rotatable about an axis 16. Furthermore, the Winding device on a winding tower 18. The winding tower 18 carries a Roller holder 20 which is vertically displaceable in the direction of the arrow 22. From the roll holder 20, the film roll 24 is supported. By turning the pallet 10 together with the boxes 12 about the axis 16 is a film 26 to the Wrapped cartons. By simultaneously moving the roll holder 20 in vertical direction is the wrapping of the cartons over the entire height. Usually, a height sensor is provided by which the height of the on the Pallet 10 stacked objects is perceived. By the Height sensor, the vertical displacement of the film roll 24 is limited.

Die Rollenhalterung 26 weist ein im wesentlichen L-förmiges Halteteil 28 auf, das einen Dorn 30 trägt, auf den die Folienrolle 24 aufsteckbar ist. Die Folienrolle 24 ist üblicherweise zusammen mit dem Dorn 30 drehbar mit der Halterung 28 verbunden. Die Rollenhalterung 28 ist mit einer Kette 32 verbunden. Durch Antrieb der Kette 32 ist ein vertikales Verschieben der Rollenhalterung 20 in Richtung des Pfeils 22 (Fig. 1) möglich. Zur Führung der Rollenhalterung 20 sind mit dem Wickelturm 18 Führungsschienen 34 verbunden, an denen vier Rollen 36 anliegen.The roller holder 26 has a substantially L-shaped holding part 28, the a mandrel 30 carries, on which the film roll 24 can be plugged. The film roll 24 is usually rotatable together with the mandrel 30 with the bracket 28th connected. The roll holder 28 is connected to a chain 32. By Drive the chain 32 is a vertical displacement of the roll holder 20 in Direction of the arrow 22 (Fig. 1) possible. To guide the roll holder 20 are with the winding tower 18 guide rails 34 are connected to which four rollers 36 issue.

Mit der L-förmigen Halterung 28 der Rollenhalterung 20 ist ferner eine Führungseinrichtung 38 verbunden. Im dargestellten Ausführungsbeispiel handelt es sich bei der Führungseinrichtung 38 um eine frei drehbar mit der Halterung 28 sowie einer Halterung 40 verbundenen Rolle. In Längsrichtung der Rolle 38 ist eine Andrückrolle 42 vorgesehen. Die beiden Rollen 38,42 berühren sich somit in Längsrichtung entlang einer Linie. Zwischen den beiden Rollen 38,42 ist die Folie 26 hindurchgeführt. Die Andrückrolle 42 ist mit einer erfindungsgemäßen Bremsvorrichtung 44 verbunden.With the L-shaped bracket 28 of the roll holder 20 is also a Guiding device 38 connected. In the illustrated embodiment is it is in the guide device 38 to a freely rotatable with the bracket 28th and a holder 40 connected role. In the longitudinal direction of the roller 38 is a pressure roller 42 is provided. The two rollers 38,42 thus touch each other Longitudinal direction along a line. Between the two rollers 38,42 is the film 26 passed. The pressure roller 42 is provided with an inventive Braking device 44 connected.

Die Bremsvorrichtung 44 weist einen Spannhebel 46 mit Griff 48 auf. Der Spannhebel 46 ist in einer Welle 50 der Andrückrolle 42 drehbar gelagert. Hierbei verläuft die Drehachse 52 des Hebels 46 senkrecht zur Längsrichtung der Andrückrolle 42. Mit dem Hebel 46 ist ein Spannelement 54 fest verbunden. Das Spannelement 54 drückt mit einer ersten Spannfläche 56 in der in den Fign. 3 und 4 dargestellten Bremsstellung gegen eine Anlagefläche 58 eines ringförmigen, die Welle 50 umgebenden Übertragungsteils 60. Von dem Übertragungsteil 60 wird Kraft auf eine Feder 62 übertragen, die die Welle 50 umgibt und zwischen dem Übertragungsteil 60 und der fest mit der Halterung 28 verbundenen Halterung 40 angeordnet ist. Durch die Kraftübertragung der Feder 62 wird die Welle 50 und damit die fest mit der Welle 50 verbundene Andrückrolle 42 in Fig. 3 nach oben gezogen. Hierdurch wird ein erstes mit der Andrückrolle 42 fest verbundenes Bremselement 64 gegen ein zweites Bremselement 66, das mit der Halterung 40 verbunden ist, gedrückt. Zwischen den beiden Bremselementen 64,66, bei denen es sich beispielsweise um eine Bremsscheibe und eine Bremsbacke handeln kann, erfolgt ein Bremsen der Andrückrolle 42. Da die Andrückrolle 42 vorzugsweise aus Weichgummi oder einem anderen Material besteht, durch das ein Rutschen der Folie 26 vermieden ist, kann auf Grund der Bremswirkung der Andrückrolle 42 die in der Folie 26 hervorgerufene Spannung eingestellt werden.The braking device 44 has a clamping lever 46 with handle 48. Of the Tensioning lever 46 is rotatably mounted in a shaft 50 of the pressure roller 42. in this connection the axis of rotation 52 of the lever 46 is perpendicular to the longitudinal direction of the Pressure roller 42. With the lever 46, a clamping element 54 is firmly connected. The Clamping element 54 presses with a first clamping surface 56 in the in FIGS. 3 and 4 illustrated brake position against a contact surface 58 of a annular, the shaft 50 surrounding transmission part 60. Of the Transmission part 60 is transmitted to a force spring 62, the shaft 50th surrounds and between the transmission part 60 and fixed to the bracket 28th connected bracket 40 is arranged. By the power transmission of the spring 62, the shaft 50 and thus the fixed to the shaft 50 is connected Pressure roller 42 pulled in Fig. 3 upwards. This will be a first with the Pressure roller 42 firmly connected brake element 64 against a second Brake element 66 which is connected to the holder 40, pressed. Between the two brake elements 64,66, which are for example a Brake disc and a brake shoe can act, braking takes place Pressure roller 42. Since the pressure roller 42 preferably made of soft rubber or another material is avoided by the sliding of the film 26 is, due to the braking action of the pressure roller 42 in the film 26th caused voltage to be set.

Erfindungsgemäß ist die Bremsvorrichtung 44 einfach zu betätigen. Durch Umlegen des Hebels 46 in Richtung eines Pfeils 68 (Fig. 4) wird das Spannelement 54 beispielsweise in Fig. 4 um 90° nach links gedreht. Hierdurch liegt an der Anlagefläche 58 des Übertragungsteils 60 eine Fläche 70 des Spannelements 54 an. Da die Fläche 70 zur Drehachse 52 des Spannhebels 46 einen geringen Abstand aufweist als die Spannfläche 56 zur Drehachse 52, erfolgt ein Entspannen der Feder 62. Hierbei ist die Feder 62 vorzugsweise derart ausgelegt, dass die beiden Bremselemente 64,66 bei Anliegen der Fläche 70 an dem Übertragungsteil 60 auseinandergedrückt werden, so dass keine oder nur noch eine sehr geringe Reibung zwischen den beiden Bremselementen 64,66 auftritt. In dieser Stellung kann die Folie 26 leicht zwischen den beiden Rollen 38,42 (Fig. 2) hindurchgezogen und beispielsweise an der Palette 10 (Fig. 1) befestigt werden.According to the invention, the brake device 44 is easy to operate. By Turning the lever 46 in the direction of an arrow 68 (FIG. 4) becomes the Clamping element 54, for example, rotated in Fig. 4 by 90 ° to the left. hereby is located on the contact surface 58 of the transmission part 60, a surface 70 of the Clamping element 54 at. Since the surface 70 to the axis of rotation 52 of the clamping lever 46th has a small distance than the clamping surface 56 to the rotation axis 52, There is a relaxation of the spring 62. Here, the spring 62 is preferably such designed that the two brake elements 64,66 at concern of the surface 70 at the transmission part 60 are pressed apart, so that no or only still a very low friction between the two brake elements 64,66 occurs. In this position, the film 26 can easily between the two roles 38, 42 (FIG. 2) and, for example, on the pallet 10 (FIG. 1). be attached.

Zur Erhöhung der Bremskraft kann der Hebel 46 aus der in den Fign. 3 und 4 dargestellten Stellung in Richtung des Pfeils 68 auch um 180° gedreht werden, so dass eine zweite Spannfläche 73 an der Anlagefläche 58 des Übertragungsteils 60 anliegt. Da der Abstand der zweiten Spannfläche 62 zur Drehachse 52 des Spannhebels 46 größer ist als der Abstand der ersten Spannfläche 56 zu der Drehachse 52, ist die auf die Feder 62 übertragene Kraft größer. Hierdurch wird die Reibung zwischen den beiden Bremselementen 64,66 erhöht.To increase the braking force of the lever 46 from the in Figs. 3 and 4 shown position in the direction of the arrow 68 are rotated by 180 °, so that a second clamping surface 73 on the contact surface 58 of the transmission part 60 is present. Since the distance of the second clamping surface 62 to the axis of rotation 52 of Tensioning lever 46 is greater than the distance of the first clamping surface 56 to the Rotary axis 52, the force transmitted to the spring 62 is greater. This will increases the friction between the two brake elements 64,66.

Durch Betätigen des Spannhebels 46 erfolgt somit ein Verschieben der Abdrückrolle 42 in ihrer Längsrichtung, wobei hierdurch die Bremskraft zwischen den beiden Bremselementen 64,66 eingestellt wird. By pressing the clamping lever 46 thus takes place a move the Push-off roller 42 in its longitudinal direction, whereby thereby the braking force between the two brake elements 64,66 is set.

Zur Feineinstellung der Bremskraft zwischen den beiden Bremselementen 64,66 kann zumindest eines der beiden Bremselementen 64,66 in Längsrichtung der Welle 50 verschiebbar befestigt sein. Hierzu kann beispielsweise das erste Bremselement 64 über ein Gewinde und eine geeignete Kontermutter mit der Welle 50 verbunden sein.For fine adjustment of the braking force between the two brake elements 64,66 can at least one of the two brake elements 64,66 in the longitudinal direction of Shaft 50 slidably mounted. For this purpose, for example, the first Bremselement 64 via a thread and a suitable lock nut with the Be connected to shaft 50.

Claims (8)

Wickelvorrichtung zum Umwickeln von insbesondere auf einer Palette (10) angeordneten Gegenständen (12) mit Folie (26), mit einer Rollenhalterung (20) zur Aufnahme einer Folienrolle (24), einer Führungseinrichtung (38) zum Führen der von der Folienrolle (24) abgewickelten Folie (26), einer gegen die Führungseinrichtung (38) drückenden Andrückrolle (42) zum Spannen der Folie (26), einem mit der Andrückrolle (42) verbundenen ersten Bremselement (64), gegen das ein zweites Bremselement (66) zum Spannen der folie (26) andrückbar ist, und einer Spannvorrichtung (46,54,62) zum Zusammendrücken der Bremselemente (64,66), wobei die Spannvorrichtung (46,54,62) einen Spannhebel (46) aufweist, so dass durch Betätigen des Spannhebels (46) in eine Bremsstellung eine definierte Bremskraft zwischen den Bremselementen (64,66) erzeugt wird. Winding device for wrapping objects (12) with film (26), in particular arranged on a pallet (10) a roll holder (20) for receiving a film roll (24), guide means (38) for guiding the film (26) unwound from the film roll (24), a pressure roller (42) pressing against the guide device (38) for tensioning the film (26), a first brake element (64) connected to the pressure roller (42) against which a second brake element (66) for tensioning the film (26) can be pressed, and a tensioning device (46, 54, 62) for compressing the brake elements (64, 66), wherein the tensioning device (46, 54, 62) has a tensioning lever (46), so that a defined braking force between the braking elements (64, 66) is produced by actuating the tensioning lever (46) in a braking position. Bremsvorrichtung für eine Wickelvorrichtung zum Umwickeln von insbesondere auf einer Palette (10) angeordneten Gegenständen (12) mit einer Folie (26), mit einer Andrückrolle (42) zum Spannen der Folie, einem mit der Andrückrolle (42) verbundenen ersten Bremselement (64), gegen das ein zweites Bremselement (66) zum Spannen der Folie (26) andrückbar ist, und einer Spannvorrichtung (46,54,62) zum Zusammendrücken der Bremselemente (64,66), wobei die Spannvorrichtung (46,54,62) einen Spannhebel (46) aufweist, so dass durch Betätigen des Spannhebels (46) in eine Bremsstellung eine definierte Bremskraft zwischen den Bremselementen (64,66) erzeugt wird. Braking device for a winding device for wrapping objects (12) arranged in particular on a pallet (10) with a film (26), with a pressure roller (42) for tensioning the film, a first brake element (64) connected to the pressure roller (42) against which a second brake element (66) for tensioning the film (26) can be pressed, and a tensioning device (46, 54, 62) for compressing the brake elements (64, 66), wherein the tensioning device (46, 54, 62) has a tensioning lever (46), so that a defined braking force between the braking elements (64, 66) is produced by actuating the tensioning lever (46) in a braking position. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Spannhebel (46) mit einem Spannelement (54) fest verbunden ist, das derart ausgebildet ist, dass durch Drehen des Spannhebels (46) zusammen mit dem Spannelement (54) in die Bremsstellung die Bremselemente (64,66) gegeneinandergedrückt werden.Apparatus according to claim 1 or 2, characterized in that the clamping lever (46) is fixedly connected to a clamping element (54) which is designed such that by turning the clamping lever (46) together with the clamping element (54) in the braking position the Brake elements (64,66) are pressed against each other. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Spannelement (54) mindestens eine im Abstand zur Drehachse (52) des Spannhebels (46) angeordnete Spannfläche (56,72) aufweist.Apparatus according to claim 3, characterized in that the clamping element (54) at least one spaced apart from the axis of rotation (52) of the clamping lever (46) arranged clamping surface (56,72). Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass mindestens zwei Spannflächen (56,72) mit unterschiedlichem Abstand zur Drehachse (52) vorgesehen sind.Apparatus according to claim 4, characterized in that at least two clamping surfaces (56,72) are provided at different distances from the axis of rotation (52). Vorrichtung nach einem der Ansprüche 1-5, dadurch gekennzeichnet, dass zwischen der Spannvorrichtung (46,54,62), insbesondere dem Spannhebel (46) und dem ersten oder zweiten Bremselement (64,66), ein Federelement (62) vorgesehen ist, das durch die Spannvorrichtung (46,54,62) zusammendrückbar ist. Device according to one of claims 1-5, characterized in that between the tensioning device (46,54,62), in particular the tensioning lever (46) and the first or second brake element (64,66), a spring element (62) is provided, which is compressible by the tensioning device (46, 54, 62). Vorrichtung nach einem der Ansprüche 1-6, dadurch gekennzeichnet, dass der Spannhebel (46) mit einer Welle (50) der Andrückrolle (42) verbunden ist.Device according to one of claims 1-6, characterized in that the tensioning lever (46) with a shaft (50) of the pressure roller (42) is connected. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass durch Betätigen des Spannhebels (46) die Andrückrolle (42) in Längsrichtung verschiebbar ist.Apparatus according to claim 7, characterized in that by pressing the clamping lever (46), the pressure roller (42) is displaceable in the longitudinal direction.
EP02022013A 2002-10-01 2002-10-01 Apparatus for wrapping and braking a film Expired - Lifetime EP1522494B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT02022013T ATE388085T1 (en) 2002-10-01 2002-10-01 WRAPPING AND BRAKING DEVICE FOR A FILM
DE50211865T DE50211865D1 (en) 2002-10-01 2002-10-01 Winding and braking device for a film
ES02022013T ES2301598T3 (en) 2002-10-01 2002-10-01 DEVICE FOR WINDING AND BRAKING OF A PLASTIC FILM.
EP02022013A EP1522494B1 (en) 2002-10-01 2002-10-01 Apparatus for wrapping and braking a film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02022013A EP1522494B1 (en) 2002-10-01 2002-10-01 Apparatus for wrapping and braking a film

Publications (2)

Publication Number Publication Date
EP1522494A1 true EP1522494A1 (en) 2005-04-13
EP1522494B1 EP1522494B1 (en) 2008-03-05

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Application Number Title Priority Date Filing Date
EP02022013A Expired - Lifetime EP1522494B1 (en) 2002-10-01 2002-10-01 Apparatus for wrapping and braking a film

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EP (1) EP1522494B1 (en)
AT (1) ATE388085T1 (en)
DE (1) DE50211865D1 (en)
ES (1) ES2301598T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2147864A1 (en) 2008-07-22 2010-01-27 Aranguren Comercial del Embalaje SL Bundling machine
ITMI20081871A1 (en) * 2008-10-22 2010-04-22 Siro S R L SUPPORT AND ADJUSTABLE BRAKING DEVICE OF THE FILM FEEDING ROLL OF PLASTIC MATERIAL IN PACKAGING MACHINES.
CN114229083A (en) * 2021-12-06 2022-03-25 日照圣谷山茶场有限公司 Automatic change brick tea wire winding packing plant
US20220324668A1 (en) * 2021-04-12 2022-10-13 Tg Plastic Technologies Sdn. Bhd. Dispenser of stretch wrap

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2608140A3 (en) * 1986-12-09 1988-06-17 Deome Plastiques Braked manual pay-out support for a reel of stretchable film
WO1990006261A1 (en) * 1988-11-25 1990-06-14 Newtec International Mobile film dispenser carrying device for a packaging machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2608140A3 (en) * 1986-12-09 1988-06-17 Deome Plastiques Braked manual pay-out support for a reel of stretchable film
WO1990006261A1 (en) * 1988-11-25 1990-06-14 Newtec International Mobile film dispenser carrying device for a packaging machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2147864A1 (en) 2008-07-22 2010-01-27 Aranguren Comercial del Embalaje SL Bundling machine
ITMI20081871A1 (en) * 2008-10-22 2010-04-22 Siro S R L SUPPORT AND ADJUSTABLE BRAKING DEVICE OF THE FILM FEEDING ROLL OF PLASTIC MATERIAL IN PACKAGING MACHINES.
US20220324668A1 (en) * 2021-04-12 2022-10-13 Tg Plastic Technologies Sdn. Bhd. Dispenser of stretch wrap
US11827473B2 (en) * 2021-04-12 2023-11-28 TG Plastic Technologies SDN, BHD. Dispenser of stretch wrap
CN114229083A (en) * 2021-12-06 2022-03-25 日照圣谷山茶场有限公司 Automatic change brick tea wire winding packing plant
CN114229083B (en) * 2021-12-06 2023-06-06 日照圣谷山茶场有限公司 Automatic change brick tea wire winding packing plant

Also Published As

Publication number Publication date
EP1522494B1 (en) 2008-03-05
ES2301598T3 (en) 2008-07-01
DE50211865D1 (en) 2008-04-17
ATE388085T1 (en) 2008-03-15

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