CN208470265U

CN208470265U - For manufacturing the packaging system for tying up body

Info

Publication number: CN208470265U
Application number: CN201821204441.3U
Authority: CN
Inventors: M·基辛格; M·塞德尔; T-F·迈尔
Original assignee: Krones AG
Current assignee: Krones AG
Priority date: 2017-08-11
Filing date: 2018-07-27
Publication date: 2019-02-05
Anticipated expiration: 2028-07-27
Also published as: DE102017214089A1; EP3441315B1; EP3441315A1

Abstract

It discloses for manufacturing the packaging system for tying up body being made of commodity composition.Packaging system includes supply unit, can provide the breadth of thermoplastic package material without interruption via supply unit.In addition, packaging system includes induction mechanism, induction mechanism may recognize that the physical location of the reference marker of the unremitting breadth of thermoplastic package material, and the reference marker is as relief configuration in the unremitting breadth of thermoplastic package material.It is additionally provided with cutting and/or separator, is configured to cut part for isolating plane formula packaging from the unremitting breadth of thermoplastic package material with reference to the physical location identified by induction mechanism.Furthermore, thin-film package module is the component part of packaging system, the thin-film package module, which is used to pack plane formula to cut, is partially applied to commodity composition, and is equipped with and shrinks channel, the plane formula packaging cutting portion retracts which is used to apply to commodity composition.

Description

Packaging system for producing bundles

Technical Field

The utility model relates to a packaging system for making tied up body.

Background

For transport, the beverage containers are often combined in a convenient bundle, for example, having four, six or more containers, wherein the containers in the bundle can be wrapped and held together, for example, by shrink film. For easier handling, such bundles with so-called disposable secondary packagings made of PE shrink film or the like usually have handles made of flexible material, which can be made of, for example, sufficiently strong film, cardboard, paper, plastic such as PVC, or mixed materials. Further optionally, such handles may be provided with paper and/or cardboard reinforced gripping areas. The handle bars can be fastened at their ends to the sides of the strapping, for example by welding or gluing. For this purpose, the end of the handle can optionally have a self-adhesive region.

A strapping provided with a wrap formed from a thermoplastic packaging material is disclosed, for example, by DE 69311338T 2. A flexible handle is fastened to the outside of the multi-pack, wherein the connecting points each form and cover the region of the handle ends for fastening to the seal and to the container side.

In order to provide a wrapping for a bundle according to DE 69311338T 2, flat cutouts are separated from an uninterrupted web made of thermoplastic packaging material in previously known packaging machines. The separated cut-out is then applied to the composition of the article of commerce, and the composition is then moved into the shrinking tunnel together with the corresponding planar cut-out. In this case, the respective cut-out, which is planar and is applied to the composition of the article of commerce, is shrunk onto the respective composition.

In order to adapt the dimensions of the respective planar cut-out, which is separated from the uninterrupted web of thermoplastic packaging material, to the respective composition of the article, the respective planar cut-out is applied to the composition of the article, the uninterrupted web being embossed until now and the embossing being captured by a suitable sensor. The sensor device is connected to the cutting and/or separating device in such a way that the cutting and/or separating device is controlled by means of the information provided by the sensor device about the stamping position of the uninterrupted web of thermoplastic packaging material in order to separate the planar cut-out in a defined manner.

The pressing stations for carrying out such embossing have high acquisition costs, require a large amount of space and can usually only be integrated into the respective packaging machine in a complex manner. Furthermore, an embossed pattern which is also recognizable after shrinking the planar cut-out onto the commodity composition in various bundles to be manufactured may be undesirable. This may be the case in particular if the thermoplastic packaging material of the respective bundle should have a uniform and continuously transparent appearance.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention may therefore be to provide a corresponding solution for producing a strapping which does not have the disadvantages described or only reduces them.

A method for manufacturing a bundle of commodity composition is disclosed. The articles of the respective compositions can be constituted, for example, by beverage containers and, in particular, by PET bottles.

In a step provided for the method, the respective actual position of a reference marking is identified, which is formed by an uninterrupted web of thermoplastic packaging material. The web of thermoplastic packaging material may be supplied from a supply roll and unwound from the supply roll. Reference marks, which will be described further below, may be applied to the thermoplastic packaging material which has not yet been unwound from the supply roll. It is also conceivable to apply reference marks, which will be described further below, to the portion of the web of thermoplastic packaging material that has been unwound and is also connected to the supply roll. In this case, an uninterrupted web of thermoplastic packaging material can be continuously moved forward or continuously unwound from a supply roll during the application of the reference mark.

For the next step, it is provided that individual flat package cutouts are separated from the uninterrupted web of thermoplastic packaging material with reference to the actual position of the identified reference marks.

In addition, a cut-out of the flat package, separated from the uninterrupted web, is applied to the composition of the article of commerce.

The next step provides that the cut-out of the flat pack applied to the composition of the article of commerce is subjected to a temperature, as a result of which the cut-out of the flat pack shrinks onto the corresponding composition of the article of commerce. In this case, the goods composition and the pack cut applied thereto can be moved into a shrinking tunnel, in which the respective planar pack cut is shrunk onto the respective goods composition.

Furthermore, it is provided that the reference mark is configured as a cut-out in the uninterrupted web of the thermoplastic packaging material, the actual position of which is preferably optically detected for separating the individual cut-out portions of the flat pack from the uninterrupted web of the thermoplastic packaging material.

In a preferred embodiment, provision can be made for the adhesive coating and/or the adhesive coating to be applied to the article or articles of the respective article composition via at least one indentation of the cut-out of the packaging shrunk onto the respective article composition. In this case, at least one handle end can be secured in a form-fitting connection via an adhesive coating and/or an adhesive coating material applied to the article or articles. It is also possible for at least one handle end of at least one handle to comprise an adhesive coating and/or an adhesive coating via which the at least one handle is fastened to the article or articles of the respective article composition in the region of the respective indentation. In particular, the respective at least one handle or at least one handle end can be fastened directly to the article or articles of the respective article composition via an adhesive coating and/or an adhesive coating.

As mentioned, it can be provided that an uninterrupted web of thermoplastic packaging material is unwound from a supply roll and that a reference mark is introduced as a gap into the portion of the uninterrupted web of thermoplastic packaging material unwound from the supply roll. In this case, embodiments have proven to be suitable in which the reference marks are punched as indentations and/or introduced by means of laser cutting into the portions of the uninterrupted web of thermoplastic packaging material that have been unwound from the supply roller.

Furthermore, the actual position of the gap can be detected by means of at least one ultrasonic sensor. It is also conceivable to provide at least one optical sensor or at least one camera, wherein the actual position of the recess is detected by means of the at least one optical sensor or by means of the at least one camera.

The present invention relates to a packaging system for manufacturing a bundle of a commodity composition. The features already described above for the various embodiments of the method can likewise be provided in the embodiments of the packaging system described below and are therefore not described again. Furthermore, the features described below in relation to the various embodiments of the packaging system may be used in embodiments of the aforementioned method, if desired. The method described above can be carried out or carried out, if necessary, by means of a packaging system described below.

The packaging system comprises a supply via which a web of thermoplastic packaging material can be supplied without interruption. The feed may have a mandrel on which a feed roller comprising the web of thermoplastic packaging material may be arranged or on which a feed roller comprising the web of thermoplastic packaging material may be sleeved. The mandrel can be driven in rotation so that an uninterrupted web of thermoplastic packaging material is unwound from the supply roll.

Furthermore, the packaging system comprises a sensing mechanism which can identify the actual position of the reference mark of the web of thermoplastic packaging material.

Furthermore, a cutting and/or separating device is provided, which is designed to separate a flat package cut-out from the web of thermoplastic packaging material with reference to the actual position identified by means of the sensing device.

Furthermore, a film encapsulation module is a component of the packaging system, which serves to apply package cutouts, which are planar and separate from the web of thermoplastic packaging material, to the composition of the goods. The film wrapping module may include a plurality of wrapping rods that move in a circular motion, via which a cut portion of the package that is planar and separated from an uninterrupted web of thermoplastic wrapping material may be applied to the composition of the commodity.

Furthermore, a shrink tunnel is provided for shrinking the applied cut-out of the flat pack onto the composition of the goods. The flat pack cut can therefore be subjected to a defined temperature in the shrink tunnel and is shrunk onto the composition of the commercial product.

In a packaging system according to the invention, the sensing means are arranged to identify the actual position of a reference mark of the web of thermoplastic packaging material, which reference mark is configured as a notch in the web of thermoplastic packaging material.

The film encapsulation module which has already been mentioned and is configured for applying a package cut out, which is planar and is separated from an uninterrupted web of thermoplastic packaging material, to a commodity composition can therefore be used for at least partially or partially wrapping the commodity composition by means of the planar package cut out.

The packaging system may comprise an application device which, via at least one indentation configured as a reference mark, may apply an adhesive coating and/or an adhesive coating on the article or articles of the respective article composition; and the application device is configured for material-fit fastening of the at least one handle end of the handle to the strapping body by means of an adhesive coating and/or an adhesive coating applied to the article or articles of the respective article composition via the at least one indentation configured as a reference mark. Thus, the handle or at least one handle end may be constructed directly on the article or articles of the respective article composition via the adhesive and/or adhesive coating.

In a conceivable embodiment, the packaging system can therefore comprise an application device for applying the handle in the region of the cutout by means of an adhesive connection and/or a welded connection with the end of the handle being fastened to the side of the article.

Furthermore, the packaging system may comprise a punching and/or punching device, which may introduce reference marks configured as indentations into the portions of the web of thermoplastic packaging material provided without interruption by the supply.

It can therefore be provided that a cutting and/or separating device and/or a punching and/or punching device is arranged between the supply and the film wrapping module for introducing gaps into the web of thermoplastic packaging material fed to the film wrapping module.

It is conceivable that the punching and/or punching device for introducing the reference marks configured as indentations comprises at least one mechanically working punching tool and/or at least one laser, i.e. a laser cutting device or a laser cutting system or the like. Other hole forming systems may also be advantageously used, such as ultrasonic cutting devices, water jet cutters, and the like.

Furthermore, embodiments have proven to be suitable in which the sensing means comprise at least one ultrasonic sensor. The reference marks introduced as indentations into the uninterrupted web of thermoplastic packaging material can thus be identified if necessary by means of an ultrasonic sensor. Of course, an optically operating sensor can also be used advantageously instead of such an ultrasonic sensor.

The indentations can be produced in such a way that they are not continuously equal in the uninterrupted web of thermoplastic packaging material or are not continuously introduced uniformly into the uninterrupted web of thermoplastic packaging material. Instead, a type of mold can be produced by means of the punching and/or punching devices already mentioned, whereby two recesses are provided in each subsequent cut-out of the flat package, i.e. in the film encapsulation module, which recesses have a defined distance and a defined position with respect to the separation cut caused in the cutting and/or separating device.

In this way, a hole pattern can be produced on an uninterrupted web of thermoplastic packaging material with alternating shorter and longer relative spacings of the indentations from one another. Furthermore, a plurality of rows each having a plurality of indentations, which are oriented in the longitudinal direction of the uninterrupted web of thermoplastic packaging material, can be provided. The number of rows or hole rows required can be selected as required depending on the subsequent application (processing of single, double or triple rails in a packaging machine).

The indentations may be made by different methods or steps. In principle, the indentations can have different profiles; it is thereby possible to have rectangular recesses, rectangular recesses with rounded corners, oval recesses, round recesses or recesses with other geometries. Preferably, the notch is cut during the continuous movement of the uninterrupted web of thermoplastic packaging material or introduced into the uninterrupted web of thermoplastic packaging material, so that start-stop runs which reduce efficiency are avoided. Certain speed fluctuations that may occur during the production process can be compensated by detecting the current actual speed of the uninterrupted web of thermoplastic packaging material and, if necessary, controlling the controllable punching and/or punching devices in coordination therewith, by adjusting the cutting or punching time points at the optimum positions. In an advantageous embodiment, provision can be made in all cutting methods to recover waste or residues occurring when the notches are introduced, for example by suction. Accordingly, embodiments of the packaging system may include a device configured to wick away or remove residue of the thermoplastic packaging material produced by the introduction.

In the thermal methods or steps described below, which can be operated, for example, by means of a laser cutting method or by means of heated wire loops or the like, the hole edges are also reinforced, since small flanges are formed on the cut edges by the temperature. In the thermal process, the steam produced can preferably be removed via suitable suction devices.

The punching and/or punching device can be, for example, a mechanical or mechanically movable device which introduces the indentations into the uninterrupted web of thermoplastic packaging material in the desired size and at the respective desired locations by means of suitable blades, hot wires or the like.

The punching and/or punching device may be a punching device with oscillating or rotating punching tools for introducing indentations into the uninterrupted web of thermoplastic packaging material. Alternatively, a plurality of such punching devices can also be arranged in parallel in order to introduce a plurality of parallel notches or a plurality of parallel rows of notches or rows with notches into an uninterrupted web of thermoplastic packaging material, wherein the uninterrupted web of thermoplastic packaging material can be divided into a plurality of tracks in its running direction after the introduction of the notches and before or after the separation of the cut-out portions of the planar packaging material, for example for multi-track film transport.

If the punching and/or punching device is designed as a punching device, it can be provided that at least one rotatable punching tool of the punching device can be rotated at a relative speed which is variably controlled with respect to the transport speed of the uninterrupted web of transported thermoplastic packaging material. In this way, different spacings of the recesses from one another can be achieved in particular. For this purpose, for example, the punching cylinder may not always be moved out synchronously with the web of thermoplastic packaging material, but the punching cylinder is synchronized with the speed or the actual speed of the web of thermoplastic packaging material shortly before the punching process.

Drawings

Embodiments of the present invention and advantages thereof are described below with reference to the accompanying drawings. The dimensional ratios of the individual elements in the figures do not always correspond to the actual dimensional ratios, since some shapes are shown simplified and others are shown enlarged for better illustration than others.

Fig. 1 shows a variant of a packaging system for producing a bundle with a handle according to the invention;

fig. 2A shows a schematic side view of a variant of the packaging system according to fig. 1;

FIG. 2B shows a detailed side view of the packaging system according to FIG. 1;

FIG. 3A shows a schematic top view of a portion of the packaging system according to FIGS. 1, 2A and 2B;

FIG. 3B shows another detailed top view of the packaging system according to FIG. 1;

fig. 3C shows a schematic perspective view of a variant of a punching device for introducing indentations into an uninterrupted web of thermoplastic packaging material;

fig. 4 shows, in three schematic top views, various variants of indentations introduced into an uninterrupted web of thermoplastic packaging material in a single-track film guide (fig. 4A), in a double-track film guide (fig. 4B) and in a triple-track film guide (fig. 4C);

FIGS. 5A and 5B show two different side views of a bundle with handles, which is manufactured by means of a packaging system according to FIGS. 1 to 3C;

FIG. 6 shows a schematic perspective view of another variant of the strapping;

fig. 7 shows a schematic detail view of the connection between the handle end and the outer side of the strapping.

Fig. 1 to 7 each use the same reference numerals for identical or functionally identical elements of the invention. Furthermore, for the sake of clarity, only the reference numerals necessary for the description of the respective figures are shown in the respective figures. The embodiments shown are merely examples, for example, by which the invention can be implemented and these examples are not limitative. It is therefore emphasized here that the embodiments described in relatively detail with reference to the figures should in no way reduce or limit the abstract utilitarian idea recited in the claims and defined in various variants in the general part of the description. The features described below should not be understood as being closely related to other features of the respective embodiments, but may be generally provided in various embodiments of the present invention as necessary.

Detailed Description

Fig. 1 is a schematic diagram illustrating the operation of a packaging system for manufacturing a bundle and for mounting a handle on the bundle according to an embodiment of the present invention. Thus, the illustrated packaging system 10 for manufacturing a bundle with handles includes a conveying section 14 for conveying a commodity composition 16, a film wrapping module 18 capable of being at least partially or partially wrapped over the commodity composition 16 with a stretchable and/or heat shrinkable film conveyed by a supply 20 to form a film bundle 24, also commonly referred to as a packaging machine 12, each having a notch on at least two opposing sides of the bundle 24. In the area of the supply 20, the shrinkable film is configured as an uninterrupted web 22 of thermoplastic packaging material.

In addition, the wrapping system or machine 12 includes a shrink module 28 disposed after the film wrapping module 18 in the conveying or transport direction 26, where heat is applied to the bundles 24 to shrink the film wrap securely around the commodity composition 16 to hold the commodities located therein together and secured to one another in this manner.

Furthermore, the packaging system 10 or the packaging machine 12 comprises an application device 30 for applying a handle to the strapping 24 with the handle ends being fastened to the goods side in the region of the gap by means of an adhesive and/or welded connection and with the wrapping film 22 being threaded through and/or with the shrinkable film 22 being brought into adhesive connection. In the illustrated embodiment of fig. 1, the application device 30 is located in the region of the transport section 14 and after the shrink module 28 in the conveying direction 26. The application device can likewise be located immediately after the film encapsulation module 18 and thus optionally also before the shrinking module 28 in the transport direction 26. Furthermore, it is provided that, between the supply 20 and the film wrapping module 18, at a suitable point of film feeding, a controllable punching and/or piercing device 32, which is only schematically illustrated here, is arranged in order to introduce a gap into the uninterrupted web 22 of thermoplastic packaging material fed toward the film wrapping module 18.

After passing through the application device 30, the package cutouts 41 separated from the uninterrupted web 22 of thermoplastic packaging material can be conveyed by means of the bundle transport section 34 in the transport direction 26 to further packaging and/or processing stations not shown here, i.e. for example palletizing conveyors or the like.

As fig. 1 merely shows, the uninterrupted web 22 of thermoplastic packaging material can be provided with suitable gaps between the supply and the cutting and/or separating device 36 in the region upstream of the film encapsulation module 18. The gaps, which are indispensable for mounting the handles in the manner described below, can be introduced into the uninterrupted webs 22 of thermoplastic packaging material, which are each unwound and transported towards the cutting and/or separating device 36, by means of the punching and/or punching device 32 mentioned in the schematic illustration of fig. 1 but not described in detail, in particular immediately after unwinding the uninterrupted webs 22 of thermoplastic packaging material from its endless storage 20 and before wrapping the groups of goods 16. After the group of articles 16 is wrapped with the film 22 in the film encapsulation module 18, in particular after passing through the shrink module 28, the end of the handle can be applied to the opening with its ends at least partially covering or covering the opening, i.e. by gluing or welding, and the bundle 24 thus produced and provided with the handle is then transported further and, for example, palletized. Suitable application devices 30 can thus be arranged after (or before) the shrink module 28 in order to secure the handles to the bundle 24, and then the transport of the bundle 24 can be continued in the transport direction 26.

Furthermore, a sensor is indicated by the numeral 35, which is embodied here as an ultrasonic sensor 37. The sensor 35 or the ultrasonic sensor 37 can identify the respective actual position of the gap introduced into the uninterrupted web 22 of thermoplastic packaging material. The aforementioned cutting and/or separating device 36 is operatively connected to the sensor 35 or the ultrasonic sensor 37, so that the cutting and/or separating means which are designed as a component of the cutting and/or separating device are actuated as a function of the actual position of the cut correspondingly identified by the sensor 35 or the ultrasonic sensor 37. It is thereby ensured that the cutting and/or separating device separates the package trim 41 from the uninterrupted web 22 of thermoplastic packaging material supplied via the supply 20, the respective dimensions of which exactly match the respective composition of the article 16 to which the respective package trim 41 is to be applied. Furthermore, the gaps formed by the pack cutouts 41 applied to the respective composition of commerce 16 and shrunk in the shrinking module 28 are located at the set positions due to the precise separation of the planar pack cutouts 41 by the cutting and/or separating device. The application device 30 can thus be used to fasten a handle in a targeted manner on or in the region of the recess in the respective film bundle 24. This eliminates the need to detect or detect a cut-out of the flat package again as to whether the position of the cut-out corresponds to a predetermined target position.

In the method described for producing a film shrink-wrapped bundle 24 with handles, it is therefore provided that the handles described in detail in the following figures are attached to correspondingly prepared, cut-out flat-pack sections 41 provided with cutouts, whereby the fastening is achieved by subsequently gluing or welding the handles through the cutouts to the corresponding product sides of the product composition 16 to be combined into the bundle 24. The film wrapping module 18 first wraps the merchandising composition 16 with a cut-to-length wrapping trim section 41 before continuing transport through the shrink oven or shrink module 28 and the next pack transport section 34.

The application device 30, which is only schematically illustrated in fig. 1 and is represented by a dashed rectangular box, can apply the handle in the following manner. The variant provides that the bundles 24 wrapped with the flat pack cutouts 41 and having passed through the shrinking module 28 are conveyed in such a way that the longitudinal sides of the bundles 24 lying laterally in the transport direction 26 each have a cutout introduced by means of the punching and/or punching device 32. After the wrapping of the commodity composition 16, the cut-out 41 of the planar wrapping of the commodity composition 16 is shrink-wrapped under the action of heat in a shrink oven or in a shrink module 28, and then the handle can be applied to the side of the commodity in the area of the gap. During the further transport in the bale transport section 34, the bale 24 can be initially rotated by suitable operating devices about a vertical axis by an angle of approximately 90 ° or 270 ° or by an angle of 90 ° or 270 ° transversely to the transport direction 26, so that the handles can be applied by the application device 30 arranged behind with contact with the notched bale arranged in the transport direction 26 outside the front and rear. The rotation is to be understood here as an alternative to the embodiment in which the rotation is omitted for a single bundle 24 or for all bundles 24. In this variant, for example, shrink film, adhesive film or a thin and stretchable, well-adherable film web is used as a wrapping or planar cut-out 41 for the composition 16 of the article of commerce for the purpose of forming the film bundle 24. It is important or at least preferred that the strapping 24 is rotated for the handle in this application variant method, whereby the corresponding recess is oriented toward or opposite the running direction of the transported strapping 24, which is not necessary after the wrapping by means of the film encapsulation module 18. For this purpose, the strapping body 24 can be rotated, for example, by 90 or 270 degrees about its vertical axis.

Fig. 2A and 2B show further details of a variant of the packaging system 10 configured as a packaging machine 12 in a schematic view. Here, two film rollers 38 are formed, on each of which an uninterrupted web 22 of thermoplastic packaging material is wound and which, after each unwinding, can be operated alternately, so that an uninterrupted transport process is achieved for supplying the film wrapping modules 18 (see fig. 1) with flat package cuts 41. An uninterrupted web of thermoplastic packaging material, generally referred to herein as a thermoplastic web, is typically formed from a shrink film, as characterized above in terms of its typical physical properties.

The punching and/or punching device 32 is arranged downstream of the supply 20 and its transport device for the continuous transport of the film, which is not described in detail here. As shown in fig. 2A and 2B, the punching and/or piercing device 32 in the exemplary embodiment shown here comprises a cutting blade 42 which is movable in the transverse direction in the transport and/or feed direction 40 of the uninterrupted web 22 of thermoplastic packaging material during the transport of the uninterrupted web 22 of thermoplastic packaging material, a support device 44 which is preferably arranged below the uninterrupted web 22 of thermoplastic packaging material being allocated to the cutting blade, the support device preventing the uninterrupted web 22 of thermoplastic packaging material from being deflected downward when the cutting blade 42 is moved vertically downward in the direction of the arrow 46 and penetrates into the uninterrupted web 22 of thermoplastic packaging material in order to create a gap. As is not visible here in detail, the punching and/or piercing device 32 can be formed by a curved blade 42 or comprise such a curved blade 42, which can be moved substantially transversely to the transport and/or feed direction 40 of the uninterrupted web 22 of thermoplastic packaging material and cuts off a film section when a notch is introduced. The punching and/or punching device 32 may in particular comprise a hot wire, which simplifies the cutting of the uninterrupted web 22 of thermoplastic packaging material.

Furthermore, a receiving and/or collecting device 48 is assigned to the punching and/or punching device 32 for picking up, receiving and/or collecting the cut film sections. In the exemplary embodiment shown, the receiving and/or collecting device 48 is formed by a suction device 50 assigned to the punching and/or punching device 32 for picking up and transporting the cut film sections. The openings 52 of the suction line 54 are arranged in the transport or feed direction 40 of the uninterrupted web 22 of thermoplastic packaging material immediately after the movable cutting blade 42 of the punching and/or punching device 32, so that all cut film sections can be reliably sucked up and held by the holding and/or collecting device 48 and separated from the uninterrupted web 22 of thermoplastic packaging material.

Variants of packaging system 10 are also conceivable in which, instead of suction device 50, receiving and/or collecting device 48 has a fan assigned to punching and/or punching device 32 in order to access and/or remove and/or transport the cut-off film sections.

An advantageous variant of the packaging system 10 or of the packaging machine 12 according to the invention, not shown here, can have a plurality of parallel transport sections or film transport tracks, wherein a plurality of parallel film packaging modules 18 and their assigned punching and/or punching devices 32 can also be provided in each case, in order to introduce gaps into the uninterrupted web of each parallel thermoplastic packaging material. In this way, a multi-track process can be carried out and the goods or the stream of bundles transported in a plurality of transport tracks arranged in parallel can be packed.

Fig. 3A and 3B are schematic top views showing again several details of the packaging system 10 according to the invention for producing a bundle 24 (see fig. 1) or of the variant of the packaging machine 12 according to the invention shown here, which variant is described with reference to fig. 2A and 2B. It can be seen here that the punching and/or piercing device 32 is arranged after the supply and approximately in the middle of the film transport area, so that the uninterrupted web 22 of the thermoplastic packaging material is also provided with a recess essentially in the middle.

The schematic perspective view of fig. 3C shows in detail a further variant of the punching device 33, which is part of the punching and/or punching device 32 (see fig. 1) for introducing indentations into the uninterrupted web 22 of thermoplastic packaging material. As shown in fig. 3C, the punching and/or piercing device 32 may be a punching device 33 with a rotatable punching roller 331 with at least one, but optionally two or more punching tools 332 arranged thereon for introducing indentations into the uninterrupted web 22 of thermoplastic packaging material or packaging sections.

Alternatively, a plurality of such punching devices 33 can be arranged in parallel in order to introduce a plurality of parallel rows of holes or rows of indentations into the uninterrupted web 22 of thermoplastic packaging material, wherein the uninterrupted web 22 of thermoplastic packaging material can be divided into a plurality of webs, for example for multi-track film transport, after the introduction of the indentations and before or after the cutting into the desired film sections. However, as is clear from fig. 3C, the rotatable punching roller 331 can also be provided with a plurality of punching tools 332, so that, after introduction, in a plurality of parallel rows of holes in the uninterrupted web 22 of thermoplastic packaging material, the rows of holes are at a distance from one another corresponding to the distance of the punching tools 332 on the punching roller 331.

An electric motor drive mechanism 333 for the rotatable punching roller 331 is provided on a frame 334, and a back pressure roller 335 that rotates in parallel with the punching roller 331 is supported on the frame, and the back pressure roller is provided with its own electric motor drive mechanism 336. As the punching roller 331 rotates, a hole is created by a suitable punching tool 332, which is located on the cylindrical punching roller 331. The punching tool 332 presses against the cylindrical counter-pressure roller 335 during the punching process or penetrates into a female mold located in the counter-pressure roller 335 rotating synchronously. The punching device 33, which preferably also has a rotatable punching roller 332 and a counter-pressure roller 335 rotating parallel thereto, is assigned a suction device 50, by means of which a film section (not shown) punched out of the uninterrupted web 22 (see fig. 1, 2A to 3B) of the thermoplastic packaging material is sucked and can be removed from the region of the further film conveying device.

The spindle arrangement adjustment device 337 of an alternative, but in practice very advantageous, variant of the punching device 33, which can be seen on the side of the frame 334 in fig. 3C and is shown as an illustration, makes it possible to adjust the distance of the punching tools 332 from one another by means of their positioning along the longitudinal axis of the punching rollers 331 by means of a spindle adjustment mechanism. The openings 52 of the suction device 50 assigned to the individual punching tools 332 are preferably also adjusted together in a corresponding manner at the same time, so that the openings remain spatially assigned to the respective punching tool 332 on the punching roller 331 and the film portions punched out of the film web 22 by the punching tools can be reliably removed at any time.

Fig. 4A, 4B and 4C show in a schematic top view various variants of hole patterns introduced into the uninterrupted web 22 of thermoplastic packaging material and configured by means of indentations in a single-track film guide (fig. 4A), in a double-track film guide (fig. 4B) and in a triple-track film guide (fig. 4C). Starting from the schematic top view of fig. 4A, a control variant for the coordinated control of the punching and/or punching device 32 or the punching device 33 and the film transport is also to be realized in the following, whereby the spacing of the openings 62 in the uninterrupted web 22 of thermoplastic packaging material and the overall configuration of the hole patterns 63 in the uninterrupted web 22 of thermoplastic packaging material correspond to the requirements of the handles to be positioned by means of the application device 30.

In principle, it can thereby be provided that the rotatable punching roller 331 of the controllable punching device 33 and the punching tool 332 arranged thereon (see fig. 3C) are rotated at a relative speed which is variably controlled with respect to the conveying speed 23 of the uninterrupted web 22 of conveyed thermoplastic packaging material. In this way, different spacings of the recesses 62 from one another can be achieved. For this purpose, the punching tool 332 may not always be rotated at a constant speed or its rotational speed may be variable over time. It is therefore conceivable for the rotational speed of the punching tool 332 during the rotational movement to vary over time in a manner coordinated with the different spacings of the recesses 62. It is possible that the film speed 23 must be synchronized shortly before the punching process of the punching cylinder, which is done by coordinating the rotational speed 338, which can be controlled by the electric motor drive 333 of the punching roller 331, with the film speed 23, whereby the peripheral speed 338 of the rotatable punching roller 331 maximally coincides with the transport speed 23 of the uninterrupted web 22 of thermoplastic packaging material. This synchronous speed can advantageously be maintained constant throughout the blanking cut. This ensures, in particular, that during each punching operation in which the punching tool penetrates perpendicularly to the film surface, there is no speed difference between the peripheral speed 338 of the rotatable punching roller 331 and the feed speed 23 of the uninterrupted web 22 of thermoplastic packaging material, since otherwise a clean punching operation cannot be ensured. The coupling between the conveying speed 23 of the uninterrupted web 22 of thermoplastic packaging material and the rotational speed 338 of the punching roller 331 can be seen by the double arrow in fig. 4A.

Each aperture pair 631 having a notch or indentation 62 shown in fig. 4A has a defined spacing 632 of the two indentations 62 forming the aperture pair 631 corresponding to the relative positions of the handle ends on the strapping 24. Because different bundle sizes and different sizes and/or heights of the goods or containers that make up the bundle 24 each require correspondingly different positions of the indentations 62 and different distances of the indentations 62 from one another, by the above-described coordination of the rotational speed 338 of the punching roller 331 and the transport speed 23 of the uninterrupted web 22 of thermoplastic packaging material, a desired hole pattern 63 is produced, the individual recesses 62 of each hole pair 631 of which have the desired distance 632.

Since the uninterrupted web 22 of thermoplastic packaging material is divided into individual film sections or planar package cutouts 41 after the introduction of the desired hole pattern 63 by means of the cutting and/or separating device 36 (see fig. 1), the spacing 633 between the hole pairs 631 from one another can be varied and is thus dimensioned such that the spacing 633 is matched to the respective desired length of the individual planar package cutouts 41 formed by the separation of the uninterrupted web 22 of thermoplastic packaging material. The spacing 633 of the hole pairs 631 is also variable in the manner described. The location of such a separation cut 634 is schematically illustrated in fig. 4A, wherein such a separation cut 634 may be made by the film slitting station 36 approximately midway between each aperture pair 631. As already mentioned above with respect to fig. 1, it is necessary to arrange the separating cut 634 at least approximately midway between each hole pair 631, whereby the dimensions of the planar package trim 41 separated from the uninterrupted web of thermoplastic packaging material are coordinated with the dimensions of the respective commodity composition 16 (see fig. 1) to which the respective planar package trim 41 is to be applied. Fig. 4A again shows the sensor 35 already shown in fig. 1 and described in relation to fig. 1, which is configured as an ultrasonic sensor 37. The corresponding actual position of the cut-out 62 can be recognized by means of the sensor 35 or the ultrasonic sensor. Furthermore, the identification of the hole pairs 631 and the actuation of the cutting and/or separating device 36 can be carried out by means of the sensor 35 or the ultrasonic sensor 37, so that the separation cut 634 can be located precisely in the middle between two successive hole pairs 631.

According to fig. 4B the same relationship is shown in an uninterrupted web 22 of a two-track thermoplastic packaging material, which web is divided into separate sections after the production of the hole pattern 63, which is shown by a dividing line 635 extending parallel to the longitudinal direction of the uninterrupted web 22 of thermoplastic packaging material and approximately midway between the two longitudinal sides of the uninterrupted web 22 of thermoplastic packaging material. The uninterrupted web 22 of thermoplastic packaging material is here divided into two separate sections for further guidance on two parallel packaging lines.

Furthermore, the same relationship is shown in fig. 4C in an uninterrupted web 22 of three-track thermoplastic packaging material, which is divided into three individual segments after the production of the hole pattern 63, which is indicated by two parallel dividing lines 635, which extend parallel to the longitudinal direction of the uninterrupted web 22 of thermoplastic packaging material and approximately midway between the rows of holes adjacent in the longitudinal direction of the uninterrupted web 22 of thermoplastic packaging material. The uninterrupted web 22 of thermoplastic packaging material is divided into a total of three separate sections for further guidance on three parallel packaging lines. In order to obtain the hole pattern or the actual position of the recess 63, a sensor 35 or an ultrasonic sensor 37 can also be provided in these embodiments. It is conceivable that, before the uninterrupted web of thermoplastic packaging material is divided into three sections along the dividing line 635, the sensor 35 or the ultrasonic sensor 37 identifies the respective actual position of the gap 63 and then actuates a common cutting and/or separating device 36 assigned to the three sections (see fig. 1) or actuates a plurality of cutting and/or separating devices 36 provided for the respective sections. It is also possible to provide each of the three sections formed by the uninterrupted web 22 of thermoplastic packaging material with its own sensor 35 or ultrasonic sensor 37, which identifies the actual position of the notch configured as a constituent part of the respective section and is connected to the cutting and/or separating device 36 for the purpose of defining a separating plane type package cutout 41 (see fig. 1).

The number of the respective required hole rows is dependent on the subsequent application (processing of a single, double or triple track in the packaging machine 12). In each case the holes must be produced at precise intervals (transversely to the running direction), as explained in detail with reference to fig. 3C and 4A to 4C.

Fig. 5A and 5B are schematic side views which show an exemplary variant of a bundle 24 with a handle 56, which can be produced by means of a packaging system 10 according to the preceding variant.

In the variant shown, the strapping 24 comprises a total of six PET beverage containers 58 grouped in so-called rectangular modules and grouped together by means of a single-use wrapping for the wrapping in the form of a planar wrapping cut-out 41, in particular a PE shrink film. The handle 56 is fastened at defined contact points 60 to the outside of at least two oppositely arranged beverage containers 58 of the strapping 24. According to the invention, the contact points 60 at least partially coincide with the notches 62 in the package or flat package cutout 41, so that in the embodiment shown the contact points 60 engage through the notches 62 and at least partially contact the edges 64 of the respective notches 62, as shown in the enlarged schematic view of fig. 7.

The rectangular handle end 68 attached to the contact point 60 and extending in the vertical direction along the outer side 66 of the container 58 covers not only the recess 62, which is likewise of elongate design, but also its edge region 64 and a part of the film surface 70 (see fig. 7) surrounding the edge 64, wherein, however, as far as possible, all the force flow is directed from the handle 56 through the recess 62 onto the side 66 of the container 58 in contact, due to the contact point 60 having the adhesive or welded connection 72, 74 which is collected in the recess 62. At the same time, the film surface 70 and the area of the wrapping or flat-pack cutout 41 surrounding the contact point 60 are not subjected to tensile forces during the carrying of the strapping 24, since the relatively small contact surface outside the edge 64 does not introduce significant tensile forces 76 into the wrapping or flat-pack cutout 41.

Alternatively, the contact points 60 can also be designed in such a way that the adhesive or welded connection 72, 74 is limited to the area or surface extension of the cutout, while the edge region 64 and the regions outside this edge 64 are free of adhesive, so that the planar package cutout 41 or the package is completely free of the tensile force 76 applied via the handle 56.

Fig. 6 is a schematic perspective view of another variation of a bundle 24 having a handle 56 forming a grip ring 78 for carrying the bundle 24 on its upper side in accordance with the present invention. In this variant, the strapping 24 also comprises a total of six items of commerce in the form of PET beverage containers 58 which are grouped in so-called rectangular modules and are combined by means of a single-use packaging for wrapping in the form of planar packaging cutouts 41, in particular PE shrink film. The handle 56 is secured at defined contact points 60 in the area of the outside of at least two oppositely disposed goods or beverage containers 58 of the strapping 24.

According to a variant of the invention, the contact portion 60 comprises a portion 41 of packaging or flat packaging material, so that the handle end 68 is applied on the outside of the packaging. The contact points 60 at least partially coincide with the notches 62 in the cut-out 41 of the package or flat package, so that the contact points 60 engage through the notches 62 and at least partially contact the edges 64 of the respective notches 62, as shown in the enlarged schematic view of fig. 7. With reference to fig. 6, it is therefore pointed out that, even if the handle end 68 is applied adhesively via a suitable connecting technique to the container side 66 through the flat pack cutout 41 or pack, in this variant the handle 56 is first applied to the flat pack cutout 41 or pack.

The rectangular handle end 68 attached to the contact point 60 and extending in the vertical direction along the side 66 of the container 58 or the goods covers the elongated or punctiform recess 62 completely, but also its edge region 64 and a part of the film surface 70 surrounding the edge 64, wherein however, as far as possible, all the force flow is directed from the handle 56 through the recess 62 onto the side 66 of the goods or containers 58 in contact, due to the contact point 60 with the adhesive or welded connection 72, 74 which is collected in the recess 62 (see fig. 7). At the same time, the film surface 70 and the area of the wrapped or flat-pack cutout 41 surrounding the contact point 60 are not subjected to tensile forces 76 when carrying the strapping 24, since the relatively small contact surface 60 outside the edge 64 does not introduce significant tensile forces 76 into the wrapped or flat-pack cutout 41.

Alternatively, the contact points 60 can also be designed in such a way that the adhesive or welded connection 72, 74 is limited to the area of the cutout 62, while the edge region 64 and the region outside this edge 64 are free of adhesive or are not welded together, so that the flat package cutout 41 or the package is completely free of the tensile force 76 applied via the handle 56.

The variant of the strapping 24 shown in fig. 6 has two superposed recesses 62 with corresponding contact points 60 for the handle ends 68. The contact points 60 can be configured in the manner shown in fig. 7. The plurality of notches 62 are vertically stacked in a row. The recess 62 forms an adhesive connection 72 or a welded connection 74, respectively, with the side 66 of the goods or beverage container 58, wherein the adhesive connection 72 or the welded connection 74 can optionally project into the handle end 68 on the film surface 70 placed in the area outside the edge 64, or the area can be free of adhesive.

The invention will be described with reference to the preferred embodiments. It will be apparent to those skilled in the art that modifications or changes may be made to the invention without departing from the scope of the claims set out below.

List of reference numerals

10 packaging system

12 packaging machine

14 transport section

16 commodity group and container group

18 film encapsulation module and wrapping module

20 supply part

22 web without interruption

23 film speed, transport speed, feed speed (of the film web)

24-bundled body, film-bundled body, and shrink-bundled body

26 conveying direction, conveying direction

28 shrink module, shrink stove

30 (for mounting handles) application device

32 cutting device, punching device, and punching device

33 punching device

331 punching roller and rotatable punching roller

332 punching tool and oscillating punching tool

333 driving mechanism, electric motor driving mechanism (punching roller)

334 frame (punching device)

335 back pressure roller

336 driving mechanism, electric motor driving mechanism (back pressure roller)

337 main shaft structure adjusting device

338 speed of rotation, peripheral speed (stamping roller)

34 pack transport section

35 sensor

36 film slitting station

37 ultrasonic sensor

38 film roll, supply roll

40 (of film) transport direction, feed direction

41 plane type package cutting part

42 blade, cutting blade

44 support device

46 cutting and/or separating device

48 accommodating and/or collecting device

50 air extractor

52 orifice

54 air exhaust pipe

56 handle

58 container, beverage container, PET beverage container

60 contact site

62 gap

63 (notched) hole model

631 hole pair and notch pair

632 (recesses of each hole pair from each other)

633 (hole to hole) spacing

634 separation cut

635 parting line

64 (notched) edge, edge region

66 side, container side, commodity side

68 handle end

70 film surface

72 adhesive connection, adhesive site

74 welded connection, welded part

76 tension

78 holding ring

Claims

1. Packaging system (10) for manufacturing a bundle (24) of a composition of commerce (16), comprising at least:

-a supply (20) via which a web (22) of thermoplastic packaging material can be supplied without interruption;

-sensing means able to identify the actual position of the reference marks of the uninterrupted web (22) of thermoplastic packaging material;

-a cutting and/or separating device (36) configured for separating a planar package cut-out (41) from the uninterrupted web (22) of thermoplastic packaging material with reference to the actual position identified by means of the sensing mechanism;

-a film wrapping module (18) for applying a wrapping cut (41) planar and separated from an uninterrupted web (22) of the thermoplastic wrapping material to a commodity composition (16); and

-a shrinking tunnel (28) for shrinking the applied cut-out of the planar packaging (41) onto the composition of the good (16); wherein,

the sensing means is provided to detect the actual position of a reference mark of the uninterrupted web (22) of thermoplastic packaging material, which is embodied as a cut (62) in the uninterrupted web (22) of thermoplastic packaging material.

2. The packaging system of claim 1, comprising an application device (30) that is capable of applying an adhesive coating and/or an adhesive coating on the article or articles of the respective article composition (16) via the at least one indentation (62) configured as a reference mark, and configured for material fit fastening of the at least one handle end (68) of the handle (56) on the bundle by the adhesive coating and/or the adhesive coating applied to the article or articles of the respective article composition (16) via the at least one indentation (62) configured as a reference mark.

3. The packaging system according to claim 1 or 2, characterized in that it comprises a punching and/or punching device (32) which is capable of introducing a reference mark configured as a notch (62) into a portion of the web (22) of thermoplastic packaging material provided without interruption by the supply (20).

4. The packaging system according to claim 3, characterized in that the punching and/or punching device (32) for introducing the reference marks configured as indentations (62) comprises at least one punching tool and/or at least one laser cutting system or laser cutting device.

5. A packaging system according to claim 1 or 2, wherein the sensing means comprises at least one ultrasonic sensor (37).