DE202011050793U1 - packaging device - Google Patents

Abstract

Device (1) for the manual packaging of a fixed object (2) by means of a plurality of sheet-like materials (4A, 4B) which can be provided on rolls, comprising a number of roll receptacles (3A, 3B) corresponding to the number of sheet-like materials (4A, 4B) Roller receiving axes can be aligned parallel to the outside of the object (2), the roller receiving axes being arranged or positioned in such a way that surfaces (4A ', 4B') can be formed from the film-like materials (4A, 4B), which are tangential to the respective rollers or Extend pulleys (11A, 11B) to the outside of the item (2) without cutting.

Description

introduction

The invention relates to the field of packaging, especially the packaging of large-volume items. In particular, the invention relates to a novel apparatus for manually packaging such articles with sheet-like materials.

State of the art and disadvantages

Objects, and in particular large-volume items such. As transport pallets or so-called "white goods" (refrigerators, washing machines, dishwashers, etc.), must usually be shielded from external influences in the context of transport from the place of manufacture to the consumer in order to avoid transport damage. Such influences may be shocks and rubbing touches with other objects or transport pallets, as may occur during handling with fork-lift trucks, during transport by trucks, etc., but also weather influences that can act on the cargo in particular during loading and unloading in transport vehicles , as well as manipulation or theft. The packaging materials thus have the primary function of transport safety. The packaging can also fulfill the task of initially holding loose goods within an outer packaging such as in particular a pallet together and / or to connect with the pallet, so that a well manageable unit is formed (pallet packaging).

Are known from the prior art so-called "bubble wrap", which are typically made of polyethylene (PE) and consist of a least two-ply, usually transparent film with regular air inclusions. Foam foils or roll corrugated cardboard are also used as packaging material. Such films, hereinafter also referred to as cushioning films for short, are flexible but not extensible.

Also known are so-called "stretch films" (also winding or net films), which are used in particular for transport safety. Stretch films are particularly expansible films, as they are familiar, for example from the field of cling film. Such films may be made of PE. When an object or a loose composite of objects is "strapped" with such a film while the film is under tension, it expands as it is being wrapped, thereby putting a permanent pressure on the composite of the objects, so that a coherent, easier to handle body is created. For re-dicing the fabric, the film usually has to be cut, since the surfaces of the film usually have a strong adhesion to each other, so that rewinding is difficult. However, such films have no resilient or damping effect against external mechanical influences, and protect only (and only limited) against weather or manipulation.

In order to protect a large object or a composite loose objects on the one hand against shocks and on the other hand against the effects of weather, and at the same time to cause a cohesion of individual objects together and / or with a pallet, more sequential operations are always required. Either there is a - usually only partial - wrapping the object with padding film, a makeshift fixing the same, so that it retains its position on the object, for. With tape, and finally wrapping the padded article with a stretch film. Optionally, this can be fixed again, for example likewise with adhesive tape or by thermal treatment. Or the body is first wrapped with stretch film, before the padding foil attached and the latter is fixed separately.

This procedure is time consuming and error prone. If, for example, too little padding film is used, it must be pieced or rewrapped. If too much padding film has been used, the consumption increases and the body may be given an irregular shape. Slips the padding foil, the object is partially unprotected. If the stretch film is positioned at the bottom, special attention must be paid to a secure hold of the upholstery film, so that it does not fall off during transport. Same problems arise when, for example, cardboard is used instead of a cushioning film.

For wrapping with such films manual winder are known, which have as essential components a portable or rollable frame and a roll receptacle for the packaging material. By repeatedly orbiting the packaged goods and optionally readjusting the height of the roll, the object is wrapped. If a stretch film is used, it must be additionally provided manually for a corresponding train.

A disadvantage of the manual systems, on the one hand, the changeover time, which is needed for the sequential implementation of the above-mentioned steps. In addition, the sequential procedure requires a corresponding amount of time for each operation.

Also known are semi-automatic solutions, so-called "stretch plates". In these devices, the packaged goods is on a rotatably mounted plate. There is an optionally height-adjustable roll holder on the side of the packaged goods. By turning the plate and thus the packaged goods, the stretch film is unwound and the packaged goods strapped. A disadvantage of this solution is the need to transport the packaged goods on the plate, which is particularly associated with pallets and other, heavy or bulky bodies with appropriate effort. In addition, goods to be packaged must always be brought to the stretcher plate and removed again after packaging.

Object of the invention and solution

The object of the invention is therefore to provide a device for avoiding the problems known from the prior art. In particular, the invention is intended to provide a device which allows an automated strapping of packaged goods with packaging film in a time and material-saving manner. In this case, both the function of the transport safety device and the function of protection against external influences should be fulfilled. Significant here is a time savings over the known methods and devices. Likewise, the invention should provide a cost-effective and flexible solution.

The object is achieved by a device according to claim 1. Further advantageous embodiments can be found in the dependent claims, the following description and the figures.

description

The invention provides an apparatus which enables simultaneous and manual wrapping of packaged goods, as will be described in detail below.

Accordingly, a device according to the invention for manually packaging a stationary object by means of a plurality of film-like, roll-on materials comprises a number of roll receptacles corresponding to the number of film-like materials whose roll receiving axes are alignable parallel to the outside of the article, wherein the roll receiving axes are arranged or positionable such that surfaces can be formed from the sheet-like materials that extend tangentially from the respective rollers or pulleys to the outside of the article without intersecting.

The roller mounts are preferably arranged so that their roller receiving axes are perpendicular. Optionally, the axes or even the entire device can also be tilted from the vertical in order to optimally be able to adapt the position of the rollers to the geometry of a packaged item with non-perpendicular outer walls. It is essential that the roller receiving axes are aligned parallel to the outside of the article. This alignment can be done by manually tilting the axes, or means can be provided which compensate for the non-uniform pull that results when the roller receiving axes are not parallel to the outside of the packaged goods. Such means may for example be provided by a central pivot and a resilient suspension of a roller mount. In this way, a roller axis automatically aligns itself approximately in the desired manner when the orientation of the wall of the packaged goods changes.

It is clear that the rolling films must not interfere with each other, for example by rubbing the films together. This is ensured by the condition according to which the roll receiving axes are arranged or positionable such that surfaces can be formed from the sheet-like materials which extend tangentially from the respective rolls or deflection rolls to the outside of the article without cutting. In this context, reference is also made to the description of the figures.

Optionally, the device also comprises means for manually bypassing the object. These are in particular non-driven wheels or rollers, caterpillars or the like, which are optionally steerable. But they can also consist in a suspension of the device, which depends, for example, on arranged above the device rail, the rail sets the path of movement. Also, a suitably far cantilevered arm, which is arranged on a mobile or fixed base, and to which the other components of the device are attached, by definition, allows a deflection of the article with the relevant for carrying out the method of the invention components of the device.

It is further preferred that at least one of the roller receivers is brakable. This means that the roller arranged on this roller mount is not free and easy to move, but a certain tensile force is required to unwind the film. This can be done in a simple way z. B. be achieved by providing appropriate friction elements in the storage of the roll receiving. The effect of braking is particularly desirable when the picked roll is a stretch film.

It is further preferred that the roller receptacles are movable parallel in the direction of the roller receiving axes. In this way, an object whose height exceeds the width of a roll can be wrapped uniformly. An optional simultaneous mobility may be necessary to create an optimal layer composite, since several rolls are unrolled simultaneously. However, it may also be possible to move multiple reel seats in opposite directions to achieve crossover strapping. In the simplest case, the device can be raised manually. However, a mechanical device, for example a scissor lift or a threaded rod, a lever mechanism or the like is preferred. Preferably, the device is coupled to the rotational movement of the roller receptacles, so that the lifting and lowering operation takes place automatically during unwinding.

As already stated above, the individual film-like materials can be joined together before or after contact with the packaged goods. Accordingly, the device according to the invention further comprises a device for full or partial surface thermal, chemical and / or mechanical bonding of at least two film-like materials together. Incidentally, reference is made to the description of the method according to the invention; the corresponding devices are well known to those skilled in the art and therefore require no further explanation.

According to a particularly preferred embodiment of the device according to the invention, the latter has two roller receptacles which are arranged on a common platform movable along a vertical axis, to which an upwardly pointing handle for guiding the device is fastened, and which can be moved on a plurality of rollers is. A detailed description of such an embodiment is within the scope of 2 given.

The application of the device according to the invention will be described in detail below. It is clear that even device features mentioned here represent advantageous embodiments of the device.

• – Bereitstellen der folienartigen Materialien auf einer entsprechenden Anzahl Rollen;
• – Ausrichten der Rollenachsen parallel zur Außenseite des Gegenstands;
• – Ansetzen der Folienenden an den Gegenstand;
• – manuelles Umfahren des Gegenstandes, so dass dieser unter gleichzeitigem Abrollen der Folien umwickelt wird.

To use the device according to the invention for manual packaging of a stationary object by means of a plurality of film-like materials, the following steps are to be carried out:

• - Providing the film-like materials on a corresponding number of roles;
• - aligning the roller axes parallel to the outside of the object;
• - Attaching the film ends to the object;
• - Manual driving around the object so that it is wrapped with simultaneous unwinding of the films.

At the same time, at least two of the sheet-like materials are unrolled simultaneously without mutual obstruction, so that they create a layer composite on the outside of the article.

The first essential aspect of the invention is thus to provide not a single, but several roles on a device. In this way, the need to provide two or more devices is avoided. A corresponding cost savings, or a time savings by avoiding long changeover times, is the result.

The second aspect is the fact that the films are unrolled sequentially but at the same time. In this way, a layer composite of the two, typically different materials when strapping the packaged material is achieved. It is clear that a mutual obstruction of the rollers or the unrolled and not yet on the packaged material to be avoided foil material must be avoided. For this purpose, reference is also made to the description of the device and the figures below.

Preferably, at least one of the sheet-like materials is put under tension during the wrapping and thus applied to the object in a stretched state. This procedure is preferred in principle and regardless of the type of film-like material, since such an uneven strapping of the packaged goods is avoided. It is indispensable when the film-like material is stretch film. Technically, this is achieved by braking the rotation of the corresponding roller mount. The braking can be fixed or readjustable to apply different levels of tensile forces on the film and thus on the object to be packaged.

It is further preferred that during the wrapping additionally a movement of the rollers takes place in the direction of the roller axes. For example, if the roller axles are vertical, vertical movement of the rollers also occurs. In this way, a tall object can be strapped with a short roll. If necessary, the movement can also be done intermittently several times in order to achieve a uniform packaging result.

More preferably, the sheet-like materials are selected from the group consisting of stretch film, bubble wrap, foam sheet, wrapping paper, nonwoven and corrugated board. Of course, but other materials, for example conductive or conductively coated materials for shielding against electrical voltages, or mesh-like materials processable by the method according to the invention.

It is also preferred that the process be carried out with those film-like materials which consist of the same base material, for example PE or PP. Thus, a simple recycling of the films can be done after removing the packaging, as a separation by substance group is eliminated.

As already described above, after rolling, but before or after applying the layer composite to the outside of the article, full or partial thermal, chemical and / or mechanical bonding of at least two film-like materials can take place. In other words, the initially separately present sheet-like materials are connected to each other either immediately before or after application to the packaged to ensure increased strength. Since, in the case of the use of stretch film and another film, the former provides cohesion, the latter need not additionally be secured from being detached; on tapes or the like can be dispensed with. The thermal bonding can be done for example by heat sealing or by blowing hot air. For example, the chemical bonding may include adhesive, or the film materials are prone to adhesive reaction with the partner. When mechanically connecting brackets can be used, and also the folding of, for example, the edge regions can produce a mechanical connection. Of course, combinations, such as folding and subsequent thermal bonding of the fold, are also encompassed by the invention.

The inventive device allows in time, cost and material-saving manner, a manual strapping of packaged goods with packaging film. In doing so, both the function of transport safety and the function of protection against external influences are fulfilled.

figure description

1 illustrates schematically the operation of the device according to the invention.

2 shows a preferred embodiment of the device according to the invention.

In the 1 the operation of the device according to the invention is shown schematically. For this purpose, the figure shows a plan view of a simplified representation of the device according to the invention 1 as well as the packaged goods to be packed 2 The device according to the invention 1 is located on the side of a stationary object 2 which may be a palette, for example. On the device 1 are two role recordings 3A . 3B arranged so that their axes of rotation are perpendicular to the sheet plane, and thus parallel to the outside of the object 2 stand. The roller mounts are each equipped with a roller, which foil-like material 4A respectively. 4B wearing. In addition, the role, which is on the role recording 3B is, by a schematically illustrated brake 5 braked. The device 1 moves around the object 2 represented by the motion path 6 , in the direction of movement 7 , The movement is done manually via a handle 11 from an operator (not shown) to the device 1 transfer.

The two foil-like materials 4A and 4B are simultaneously unrolled during the bypass without mutual interference, so that they are as a layer composite to the outside of the object 2 invest. This is achieved in that the roller receiving axes are arranged or positioned such that of the film-like materials 4A . 4B surfaces 4A ' . 4B ' can be formed, which are tangent from the respective rollers to the outside of the object 2 extend without cutting. For the case not shown, that the films additionally run over corresponding pulleys, it is clear that this condition must apply mutatis mutandis, possibly also, for these pulleys.

By braking the roller holder 3B becomes while the object is traveling around 2 an increased tensile force on the corresponding film-like material 4B exercised. If this is a stretch film, it expands and exerts a compressive force on the outside of the object to be packaged 2 out.

Preferably, the roll holder 3A equipped with a padding foil. In this way, a layer composite can be realized in one step, which serves both the transport safety device, as well as the packaged goods 2 protects against external influences.

In the 2 is a preferred embodiment of the device according to the invention 1 shown. This is located laterally of the object to be packaged, which is not shown here. The two roller pictures 3A . 3B are on a common, along a vertical axis 8th movable platform 9 arranged. The length of this axis 8th is for example about 2 m. Both role shots 3A . 3B are simultaneously vertically movable. To guide the device is an upwardly facing handle 11 who is at the platform 9 is attached. The vertical axis 8th points below the platform 9 a locking possibility for the same on. This position is for the platform 9 a preferred rest position, since in this way the risk of tipping the device 1 is reduced. The roll holder in the picture on the right 3B in the present case carries a cushioning film, and the left-hand roller receptacle 3A a stretch film. As a means of driving around 10 the object there are simple roles, which are arranged on a rolling frame, of which the vertical axis 8th extends vertically upwards.

By circumventing the object this becomes with the film-like materials 4A . 4B wrapped, which form a layer composite on the outside of the article (each not shown). The surface formed by the cushioning film 4B ' is also recognizable. This extends tangentially from the corresponding role, which is the role recording 3B is assigned to the outside of the article 2 (not shown). In doing so, she cuts the area of the film-like material that is not visible in the picture 4A not stocked another role.

With a pulley or a tension spring (not shown), with the or the platform 9 can be raised or lowered in the vertical direction, the user (not shown) is an almost effortless strapping of objects with greater vertical extent possible by the platform 9 while strapping up and / or driven off.

At the upturned ends of the roller mounts 3A . 3B are as a brake 5 acting brake handles shown. By tightening the same in or on the roller receiving axis acts a cone 12 clamped on the respective role, so that it is increasingly difficult to rotate. Thus, when pulling a pulling force acts on the corresponding film-like material 4A respectively. 4B which stretches the same. Preferably, the strength of the braking effect is adjustable, since, for example, a non-stretched stretch film requires a higher tensile force than a stretch film which is already pre-stretched, and a cushioning film need not be stretched at all.

LIST OF REFERENCE NUMBERS

1

contraption

2

Object, packaged goods

3A, 3B

roll cradle

4A, 4B

foil-like material

4A ', 4B'

surfaces

5

brake

6

motion path

7

movement direction

8th

vertical axis

9

platform

10

Means to drive around

11

handle

12

cone

Claims (9)

Contraption ( 1 ) for manual packaging of a fixed object ( 2 ) by means of a plurality of film-like, roll-ready materials ( 4A . 4B ) comprising one of the number of film-like materials ( 4A . 4B ) corresponding number of roll receptacles ( 3A . 3B ) whose roller receiving axes parallel to the outside of the object ( 2 ) are alignable, wherein the roller receiving axes are arranged or positionable such that from the sheet-like materials ( 4A . 4B ) Areas ( 4A ' . 4B ' ) are tangential to the respective rollers or pulleys ( 11A . 11B ) to the outside of the article ( 2 ) without cutting. Contraption ( 1 ) according to claim 1, further comprising means for manually bypassing ( 10 ) of the object ( 2 ). Contraption ( 1 ) according to claim 1 or 2, wherein at least one of the roller receptacles ( 3A . 3B ) is brakable. Contraption ( 1 ) according to claim 3, wherein as brake ( 5 ) is provided coaxially in or on the Rollenaufnahmeachse screwed brake handle, by means of which a cone ( 12 ) Clamping forces on the role are exercisable. Contraption ( 1 ) according to one of claims 1 to 4, wherein the roller receptacles ( 3A . 3B ) are movable parallel in the direction of the roller receiving axes. Contraption ( 1 ) according to one of claims 1 to 5, wherein the same further comprises a device for full or partial surface thermal, chemical and / or mechanical bonding of at least two film-like materials ( 4A . 4B ). Contraption ( 1 ) according to one of claims 1 to 6, with two roller receptacles ( 3A . 3B ), which are on a common, along a vertical axis ( 8th ) movable platform ( 9 ) are arranged, on which an upwardly facing handle ( 11 ) for guiding the device ( 1 ), and which is movable on a plurality of rollers. Contraption ( 1 ) according to claim 7, further comprising at the vertical axis ( 8th ) arranged locking possibility for the platform ( 9 ). Device according to one of claims 5 to 8, wherein a pulley or a tension spring on the vertical axis ( 8th ), whereby the vertical position of the platform ( 9 ) is influenced.

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