WO2023061680A1 - Verfahren, applikationsvorrichtung und verpackungsvorrichtung zur herstellung von umreifungsgebinden - Google Patents
Verfahren, applikationsvorrichtung und verpackungsvorrichtung zur herstellung von umreifungsgebinden Download PDFInfo
- Publication number
- WO2023061680A1 WO2023061680A1 PCT/EP2022/075408 EP2022075408W WO2023061680A1 WO 2023061680 A1 WO2023061680 A1 WO 2023061680A1 EP 2022075408 W EP2022075408 W EP 2022075408W WO 2023061680 A1 WO2023061680 A1 WO 2023061680A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- application head
- articles
- cage
- strapping
- strap
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 19
- 238000007906 compression Methods 0.000 claims description 91
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- 230000008859 change Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 7
- 239000003292 glue Substances 0.000 description 7
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 235000013361 beverage Nutrition 0.000 description 6
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- 238000007598 dipping method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 229920006300 shrink film Polymers 0.000 description 4
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B13/00—Bundling articles
- B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
- B65B13/022—Applying preformed bands of continuous-ring form, e.g. elastic
-
- 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
- B65B13/00—Bundling articles
- B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
- B65B13/20—Means for compressing or compacting bundles prior to bundling
-
- 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
- B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
- B65B27/04—Bundling groups of cans or bottles
Definitions
- the present invention relates to a method for producing strapped bundles which are each formed by at least two grouped articles held together by at least one strap. Furthermore, the invention relates to an application device for the production of such strapping bundles and a packaging device for the production of such strapping bundles.
- beverage containers are usually combined and packaged using shrink film to form bundles of four, six or more beverage containers.
- the production of containers is usually unavoidable, since they represent the most common variant of sales units for beverage containers (such as bottles made of PET plastic).
- Some of the containers are combined again for transport and/or put together in layers and palletized.
- shrink films used to produce known containers require certain production steps that have a relatively high energy requirement.
- the shrink film used causes costs for production, provision, handling and subsequent disposal, since it is no longer required after sale.
- the machinery for providing the so-called film wrapping modules and other handling stations also causes high investment costs.
- the provision of the so-called shrink tunnel, in which the shrink film wrapped around the containers is shrunk around the bottles by means of the application of hot air also requires a relatively high capital investment.
- strapping bundles are known in which a plurality of articles are held together by strapping stretched horizontally around the outside of the article, which strapping is placed around the article during an uninterrupted conveying process and then fixed.
- the strapping is formed by at least one strap stretched around the outside of the article and then connected at its ends under pretension.
- containers, articles or bottles are grouped into formations in continuously or intermittently operating strapping machines and then strapped with one or more straps using strapping units.
- Typical formations can be, for example, 1x2 arrangements (two containers in a row), 2x2 arrangements (four containers in a square or in a diamond formation), 3x2, 4x3 or, in principle, also variable nxm arrangements.
- the disadvantage here is that the strapping is connected to form a closed strapping strip on the articles.
- additional process time is required to produce a stable connection, which represents an enormous disadvantage in terms of the necessary production time and machine output, particularly in the case of continuous processing.
- every necessary function on the closing tool for producing the closed strapping increases the complexity of the packaging process and the tools that carry it out.
- the object of the invention is to optimize the strapping process, in particular to make the strapping process cost-efficient, safe and quick.
- the invention relates to a method for producing strapped bundles.
- a strapped bundle is formed by at least two grouped articles held together by at least one strap.
- a tool in particular an application head, is used in order to attach a closed strap to a combination of at least two grouped articles.
- the strap can in particular be formed from a paper material, a material similar to paper, a plastic material, a composite material or the like.
- the strapping band spans the group of articles, with the strapping band being arranged stretched around areas of the outer lateral surfaces of the articles.
- the strap has a circumference that causes sufficient strap tension to hold together and stabilize the group of articles.
- a closed strapping band is used in particular, ie it is no longer necessary to make a connection between the free end regions of the strapping material on the article group.
- the articles to be combined are preferably containers filled with a fluid content, for example bottles or cans, in particular beverage containers.
- a fluid content for example bottles or cans, in particular beverage containers.
- the bottles or cans or similar containers can also be filled, for example, with fluid cosmetics such as shampoo or the like.
- the method provides for at least the following method steps: a) providing the at least two grouped articles, which are positioned in a movement and/or handling space of an application head, b) inserting at least one prefabricated closed strapping band into the application head, in which the closed strapping band in is fixed in a defined position, which application head has a variable opening width of a cage which can enclose the grouped articles on the casing side, c) feeding the application head equipped with the at least one strap to the articles by means of a feeding movement which runs approximately parallel to the longitudinal center axes of the articles or wherein the grouped articles can be delivered to the application head by means of an infeed movement which runs approximately parallel to the longitudinal center axes of the articles, with the cage of the application head contacting the grouped articles on their lateral sides and compressing them at least slightly, d) positioning the strapping band at an intended position of the articles by defined lowering of the application head simultaneously compressing the articles, e) increasing the opening width of the cage of the application head while simultaneously releasing and det
- this can mean lowering the application head equipped with the at least one strapping strip over the articles.
- this can also describe a relative movement between the application head and the group of articles, which can take place by lifting the group of articles and threading them into the application head from below.
- the compression applied to the lateral surfaces of the articles increases with increasing depth of the stroke, until the desired compression is achieved.
- the stroke required for this is determined, for example, by executing a compression bevel, described below, on contour pieces of the application head. As the downward movement progresses, the strapping inserted into the application head is pushed over the compressed article group.
- the at least one strapping is released and detached from its fixed position within the application head by lifting the fixing of the strapping by the fixing elements of the application head.
- the opening width of the cage of the application head is increased in order to release the compression of the articles.
- a closed strapping band is temporarily fixed in the cage of the application head, with the compression of the articles reducing at least temporarily an outer circumference of the group of articles and in particular being smaller than the circumference of the strapping band, so that at least temporarily there is at least a slight distance between the inside of movement and/or Handling space of the application head arranged article group and fixed within the application head strapping.
- the compression of the cage is released as soon as the strap is positioned at its intended target position on the article grouping.
- the fixation of the strapping within the application head is released, so that after the items have expanded into their initial state, the strapping is in contact with the group of items with the intended pretension.
- the strapping tension can be adjusted by the elastic restoring forces of the compressible articles without the need for additional devices for applying an intended strap tension and/or for connecting the two open strap ends.
- the method can also provide that the closed strapping band is produced inline from a strapping material that is provided in strip form and is then arranged directly in the application head and temporarily fixed.
- a closed strapping band is produced from a strapping material that is provided in the form of a strip and is then positioned directly in the application head.
- Prefabricated strapping sections are preferably produced, connected at their strap ends and only then inserted into the application head. In this way, the application head can be constructed in a relatively simple manner since there is no need for tape guide devices or cutting and sealing devices.
- Such a variable printing option opens up a wide range of possible uses in order to give the tape a colored design, to apply product information in plain text or in coded form, etc.
- the method described above is carried out in particular in an application device described below.
- the application device is assigned a movement and/or handling space for an application head for interaction with at least two articles grouped within the movement and/or handling space.
- the application head is designed to attach at least one strap to a group of articles, with the strap being arranged on the group of articles so as to partially encompass the outer lateral surfaces of the articles.
- the application head has a cage with a variable opening width, which can enclose the grouped articles on the jacket side.
- the cage has a segmented structure and the opening width of the cage can be changed by infeed movements of the segments, in particular by opening movements of individual segments directed perpendicularly away from the lateral surface of the article or perpendicularly to the longitudinal axis of the article, with a rotary movement and a combination of rotational and translational movements also being conceivable is.
- the cage can be detached relatively easily from the strapped group of articles without the packaging unit or part of the packaging unit being adversely affected or damaged.
- At least part of the segments is preferably formed by the contour pieces described below.
- the cage also has an area for inserting at least one prefabricated, closed strap.
- the application head or the cage is equipped with fixing devices and guide or holding elements.
- the fixing devices and guide or holding elements are necessary in particular for the correct placement and fixing of the strapping within the application head.
- the fixing devices can be formed in particular by clamping elements, suction elements, vacuum grippers and/or adhesive grippers.
- the cage has a contoured guide on its inner circumference, which is formed, for example, by the contour pieces, clamping elements and guide or holding elements.
- the contoured guide is formed particularly at the corner radii and replicates the circumference and shape of the strap to be applied to the articles.
- the contoured guide of the cage dictates the ring shape of the strap.
- the temporary fixation of the strapping within the cage is necessary to keep it in position or in the required ring shape during the application process and to ensure that the strapping is correctly pulled onto the group of articles.
- the fixing elements can either be distributed along the circumferential contour or located specifically at prominent points, for example in the area of the corner radii or the like.
- a contoured clamp with a dipping edge or an undercut can be provided, in which undercut the strap is at least partially arranged.
- the band is held reliably in the cage on the one hand, but can also be easily detached from the cage as soon as it is positioned on the article group.
- connection point in which the free end areas of the strapping band are possibly arranged overlapping one another, from getting caught on guide rails of subsequent handling modules or the like and the strapping band being able to tear open accordingly.
- the contour pieces are designed to be bevelled in the infeed direction, in particular in the direction of lowering onto the article group or in the placing direction, so that when the application head moves downwards in the direction of the longitudinal axis of the article or when the grouped articles move upwards in the direction of the longitudinal axis of the article Compression is exerted on the articles arranged within the application head and in the course of which the closed strap can be applied to the grouped articles.
- the strapping bundle formed in this way is released for subsequent handling.
- an opening width thereof is adjusted, in particular enlarged.
- the compression is canceled by an outward movement of the contour pieces.
- the fixation of the strapping band within the application head is released, so that it lies tightly around the outer lateral surfaces of the now relaxed grouped articles.
- contour pieces arranged opposite one another can be removed from one another by an opposite movement.
- the application head has a first opening width in one operating mode, which at least in some areas is at least smaller than a width of the group of articles, so that the group of articles is at least slightly compressed.
- the area of the application head in which the strap is arranged has a width that corresponds to the width of the uncompressed article group.
- the application head has a second opening width which is larger than a width of the uncompressed group of articles and which is also larger than a width of the strapping fixed in the application head, so that the strapped group of articles, which is also referred to below as a strapping bundle, is released becomes.
- the application head located in the release mode is lifted off the strapping container in the opposite direction to the application direction and is moved back to an initial position for reloading with a strap.
- the strapped bundle is released and can now be supplied for further handling, for example palletizing or the like.
- the strapped bundle is removed from the application head, which is in the release mode, by being lowered and fed to further handling, for example palletizing or the like.
- the application head is switched back to the operating mode with the first opening width by a corresponding feed movement of the segments, so that the application head can be fitted with a strap again.
- the fixing elements it may also be necessary initially, after the fixing of the strapping has been released from the fixing elements of the application head, to continue the downward movement of the application head until the strapping is arranged outside of the fixing area and, under certain circumstances, only then to resolve compression of the articles.
- the application head can in particular be equipped with a plurality of correspondingly arranged contour pieces.
- the contour pieces represent at least partial areas of the contoured guide for the strapping band, in particular the shape of the corner areas of the strapping band is specified by the contour pieces.
- the shape of the contour pieces is designed, for example, such that they have an insertion area, a compression area and an area set back behind the compression area in the direction of the longitudinal axis of the article.
- the recessed area is designed in particular as a dipping edge or undercut.
- the strap is placed in the recessed areas of the contour pieces. This is necessary in order to prevent the strapping from touching down on the outer lateral surface of the articles, which could lead to premature snagging of the strapping during the downward movement of the application head or the upward movement of the group of articles. The strapping could be damaged or correct application to the article group could be prevented.
- the circumference of the strap is selected in such a way that it is protected by the recessed area or undercut, but not larger than necessary.
- a strap with too large a circumference would not generate sufficient tension between the strap and the group of articles. In particular, the friction between the articles would be lost, which would lead to reduced pack stability.
- the compression applied to the individual items in the item group is defined by the geometry of the contour piece.
- the strength of the compression is determined by the difference between the compression radius for the respective compression axis and the uncompressed article radius.
- the contour piece can in particular have a radius for the compression along the group of articles and/or a radius for the compression across the group of articles.
- Compression is always applied to the item group in at least one direction.
- the compression is applied lengthwise to the article group.
- compression can also be applied across the article group. It is also possible to combine both compression axes, i.e. compression along the article group and compression across the article group.
- the inner contour of the contour piece is designed in such a way that, starting from the compression radius, the radius runs out until the uncompressed radius is in contact, so that the article is only guided in this axis.
- the respective compression radii can be chosen differently.
- An additional setting of the final compression can be made in addition to the geometry of the contour pieces by further feeding the contour pieces to the article group.
- the selected form of the insertion bevel also known as the compression bevel
- the compression bevel can be used to influence how quickly the desired compression of the article group is achieved. In particular, this also results in how much downward stroke of the application head is required. In addition, this also influences how much force has to be applied for the compression, since depending on the steepness of the compression slope, more or less friction is generated when the application head is pushed onto the article group.
- the geometry suitable for the respective article group can be designed via the height of the insertion area and the angle of the compression slope. in particular depending on the desired compression, the article geometry and the corresponding friction pairings.
- the articles are pressed between the strapping band by the contour pieces of the application head, and due to the compression of the articles there is initially a certain distance between the strapping band held in the application head and the group of articles. There is thus initially a spatial separation between the strap and the articles, which is subsequently eliminated by the release of the compression.
- a further embodiment can provide that the cage is equipped with compression means in the form of pneumatically inflatable elements or in the form of spring-loaded elements.
- a transfer element is preferably provided which has the contour of the desired strapping band ring.
- the transfer element accepts the ring-shaped strap from a corresponding magazine, a preparation module, etc.
- the transfer element with the strap is placed over the application head.
- the strapping is preferably fixed to the transfer element by means of suitable suction elements or clamping elements or other suitable fixing devices, with the lower edge of the strapping preferably protruding below the transfer element, so that the lower region of the strapping can be inserted into clamping fixing elements of the application head. If the strapping is held within the application head only by suction elements, there is no need for the strapping to protrude below the transfer element.
- the strapping held on the transfer element is placed in a desired arrangement within the application head by a downward movement of the transfer element and/or an upward movement of the application head.
- the strap is transferred from the transfer element to the application head.
- the transfer element is then removed from it by an upward movement of the same or a downward movement of the application head and moved into a starting position for reloading with another strapping band.
- the transfer element can be segmented, with the segments being able to be moved in the direction of a center of the transfer element, as a result of which the circumference of the transfer element is reduced.
- the strapping band is introduced into the application head from below by a corresponding transfer element and is arranged and fixed in it.
- the application head is preferably designed in such a way that it can also be used to process different articles with the same or a similar article geometry, even if the design diameter differs from the actual diameter of the article.
- the desired compression must be able to be set by appropriately positioning the contour pieces in the longitudinal axis and in the transverse axis. This means that defined, similar diameter ranges can be covered.
- the cage provided by the application head can also be enlarged or reduced by inserting further guide and holding elements or removing guide and holding elements and thus adapted to different container sizes.
- the invention further relates to a packaging device for the production of strapped bundles comprising an application device as described above.
- the packaging device also includes a device for producing closed strapping bands.
- the device for producing closed strapping bands is also referred to as a preparation module and includes a magazine, in which magazine a supply of strip-shaped strapping material is made available.
- the strip-shaped strapping material can be provided in the form of strips of strapping material provided in a defined length. However, the strip-shaped strapping material is preferably provided on a roll as endless material in a required width.
- the device for producing closed strapping bands also includes a connecting device for connecting free ends of the strip-shaped strapping material to form a closed strapping band.
- the endless strapping material is fed to a separating device via a feed device.
- the feed device is formed, for example, by two rubberized rollers, at least one of which is driven and which unwind the endless strapping material accordingly.
- the separating device is formed, for example, by a downstream knife or another suitable cutting unit.
- the strapping material is cut off in a defined length by the cutting device and the free end regions of the strapping material cut to length are connected to one another to form the ring-shaped, prefabricated strapping band.
- the free end areas are arranged partially overlapping and connected to one another by gluing or a welding process or the like.
- connection takes place via a gluing unit, which includes a glue application device and a pressing device to form an adhesive connection.
- a gluing unit which includes a glue application device and a pressing device to form an adhesive connection.
- the gluing unit is preferably associated with a frame, which in a recess along an inner or outer periphery of the frame desired extent of the strap to be formed.
- a revolving conveyor unit is assigned to the frame.
- the frame can be constructed in segments, for example, and by adjusting individual frame segments, the frame circumference can be adjusted and thus the circumference of the strapping band to be formed can be adjusted. In this way, it is possible to react to any fluctuations in the size of the article groups, or a format change can be carried out with the same strapping material.
- One or more vacuum belts and/or mechanical conveying elements for example circulating clamping elements, rubberized belts, conveyor belts or the like can be used to transport the strapping material along an inner or an outer contour of the frame.
- the strapping material is conveyed once around the complete inner or outer contour of the frame via the conveyor unit until an overlap occurs in the area of the gluing unit.
- the strip of strapping material that has been cut to length is provided with glue at the start area and/or at the end area via the glue application device and then pressed out by a pressure stamp of the pressure device, thus creating a resilient connection.
- the correspondingly closed strapping can now be grasped by a transfer element in the manner described above and fed to the application head of an application module for strapping a group of articles.
- inline printing of the strapping material can be provided during the formation of a strapping band or when the strapping band is applied to the articles.
- a type of scattered print is applied to the strapping material as the basic print design. This is a print image that is repeated continuously at a defined interval. Ideally, the repetition distance is designed in such a way that it leads to at least one complete repetition of the pattern per circumference of a closed strap for all formats to be processed, in particular container circumferences, in the respective width of the strapping material.
- an empty field is formed as part of the scattered print.
- the desired printing can be done inline in this empty field, for example in the form of a barcode, format information, best-before date or similar.
- a printer unit arranged within the device for producing closed strapping can be provided for this purpose, so that the desired printing can be carried out as part of the formation of the closed Strapping done.
- a corresponding printer unit can also be assigned to the application module, in which case the printing can take place before the closed strapping band is applied to the grouped articles or after the strapping bundle has been formed.
- the position of the inline printing within the empty fields can be done either by evaluating the unrolled length and back-calculating the position of the empty field to be printed.
- a sensory detection of the empty space or other markings present on the strapping material can be provided.
- the detection of a special geometric marking is conceivable, which is part of the scattered print or the like.
- inline printing is the reduction in the amount of strapping material required, as this can now be used flexibly. As a result, material costs can be further reduced since the same strapping material can be used for different products.
- FIG. 1 shows an application head of an application device for the production of strapped bundles in a perspective representation.
- FIG. 2 shows the application head according to FIG. 1 in a perspective representation obliquely from above with an article grouping arranged therein, which is to be processed into a packaging unit.
- FIGS. 3 to 5 show the application head according to FIGS. 1 and 2 in a view from above.
- FIGS. 6 to 12 show different steps of a method for producing strapped bundles.
- FIGS. 13 to 15 show different views of a contour piece.
- FIGS. 16 to 21 show a process of transferring the strap to the application head.
- Figures 22 and 23 show a pre-production of the strap.
- FIG. 1 and FIG. 2 show an application head 1 of an application device for the production of strapping bundles in a perspective representation.
- FIGS. 3 to 5 also show the application head 1 according to FIGS. 1 and 2 in representations from above.
- the application head 1 shown as an example in Figures 1 to 5 is intended and structurally designed to attach at least one strap 15 to an article group 12 comprising at least two articles 10, the strap 15 being attached to the outer lateral surfaces of the articles 10 in a manner that these are at least partially spanned by the strap 15, whereby the entire group of articles 12 is spanned by the strap 15 and held together.
- the closed strapping band 15 that mechanically holds the group of articles 12 together in this way can be formed in particular from a paper material, a material similar to paper, a plastic material, a composite material or the like.
- the material and the Mate rial strength of the strap 15 depends on what mechanical stability for the cohesion of the group of articles 12 is to be guaranteed.
- the articles 10 to be combined are preferably containers filled with a fluid content, in particular beverage containers, for example bottles 11 or cans.
- the bottles 11 or cans or similar containers can also be filled, for example, with fluid cosmetics such as shampoo or the like.
- the schematic representation of FIG. 2 shows that the bottles 11 can be, for example, plastic containers for holding beverages, in particular PET containers.
- the application head 1 has a cage 50 with a variable opening width W which can be adjusted with the aid of suitable actuators and which can completely enclose the grouped articles 10 on the casing side.
- the opening width W of the Cage 50 can be changed by infeed movements of several contour pieces 2 that are connected to one another but whose positions can be adjusted relative to one another. These contour pieces 2 form at least part of the segments from which the cage 50 is formed.
- the application head 1 comprises at least one contour piece 2 with a compression bevel 6, referred to here as such, the geometry of which is selected in such a way that a downward movement of the application head 1 in the direction of the article longitudinal axis L or an upward movement of the article group 12 in a direction parallel to the article longitudinal axis L causes a compression is exerted on the at least two grouped articles 10 ( Figures 2 and 4) positioned within the movement and/or handling space of the application head 1 and in the course of which a closed, pre-produced strapping band 15 can be applied to the grouped articles 10.
- the compression bevels 6 form a course of the opening cross section of the cage 50 which is conical overall or which widens towards a lower opening.
- the cage 50 is formed by the contour pieces 2 , the clamping elements 3 and the guide or holding element 4 . All of these parts are connected to one another, but can perform the relative movements to one another, which are described in more detail below, in order to be able to vary the opening width of the cage 50 as required.
- the cage 50 has a contoured guide 51 on its inner circumference, which is formed in particular on the corner radii.
- the inner contour of the cage 50 is designed to be beveled in the lowering direction onto the article group 12 , particularly in the region of the contour pieces 2 .
- the application head 1 is also equipped with clamping elements 3 and guiding or holding elements 4 and suction elements 5 . These clamping elements 3, guiding or holding elements 4 and suction elements 5 are necessary in particular for the correct placement and fixing of the strapping band 15 within the application head 1 (FIG. 2).
- FIGS. 3 and 4 show the application head 1 with an article group 12 arranged therein, comprising six articles 10, in particular six bottles 11, which are put together in a rectangular arrangement.
- the articles 10 are partially compressed by the contour pieces 2 when the cage 50 is lowered over the article group 12 and encompasses it.
- the strap (not shown) is located in the application head 1 in a clamping arrangement.
- the compression of the articles 10 is released by an outward movement of the contour pieces 2 as soon as the cage 50 together with the strapping held therein is positioned at the intended height on the article group 12 .
- the fixation of the strap within the application head 1 is released by an at least brief inward movement of the clamping elements 3 .
- suction elements 5 are active suction elements 5 acted upon by negative pressure, the negative pressure applied to the suction elements 5 is released simultaneously with the inward movement of the clamping elements 3, whereby the strapping held there can be detached.
- FIGS. 3 shows the application head 1 in an operating mode BM with a smaller opening width W of the cage 50.
- the articles 10 are strapped with the strapping band arranged in the application head 1 (not shown).
- the application head 1 has a first opening width W1, which in some areas is at least slightly smaller than a width of the group of articles 12, so that the group of articles 12 is at least slightly compressed.
- FIG. 4 shows the application head 1 in a release mode FM, in which the application head 1 is transferred after the strapping process has ended in order to release the strapped articles 10, which are referred to below as strapping bundles and identified by the reference number 13. Consequently, in the release mode FM, the way in which the cage 50 is opened is increased compared to the operating mode BM (strapping mode).
- the application head In this release mode FM, the application head has a second opening width W2, which is larger than the width of the group of articles 12, so that the group of articles 12 is released.
- contour pieces 2 arranged opposite one another are moved apart and thus distanced from the article group 12 on both sides.
- the contour pieces 2 arranged on the left are moved to the left and the contour pieces 2 arranged on the right are moved to the right, as a result of which the opening width W is increased.
- the contour pieces 2 arranged on the left and the clamping element 3 arranged between them are assigned to a first frame element 55 which can be moved via hydraulic or pneumatic adjustment means 57 .
- the contour pieces 2 arranged on the left and the clamping element 3 arranged between them are assigned to a second frame element 56 which can be moved via hydraulic or pneumatic adjustment means 58 .
- contour pieces 2--as shown in FIG. 5-- can be moved away from a center point M in order to increase the opening width W.
- FIG. 6 The schematic representations of Figures 6 to 12 show different steps of a method for the production of strapped bundles 13, the process shown in Fig.
- FIG. 11 represents an optional step that can also be omitted if necessary.
- FIGS. 6 to 12 each show a sectional view through an application head 1 with articles 10 arranged therein, so that the different phases of the formation of the strapping bundle from the article groups 12 mechanically connected to one another can be illustrated.
- At least two grouped items 10 are provided as an item group 12 and positioned in a movement and/or handling space of the application head 1 .
- six items 10 are provided in two rows of three, with only one row of three being visible due to the sectional view.
- At least one prefabricated, closed strapping band 15 is inserted into the application head 1 and fixed in a defined position within the application head 1 by means of the clamping elements 3 (cf. FIG. 6).
- the at least one prefabricated, closed strapping band 15 is inserted into the contoured guide 52 of the application head 1 and fixed in a defined position within the contoured guide 52 of the application head 1 by means of the clamping elements 3 (FIG. 6).
- the ring shape of the typically closed and prefabricated in the required length strapping 15 is thereby through the contour pieces 2 and the Guide pieces 4 specified and maintained (see. Figures 1 to 5).
- the already described clamping elements 3 and suction elements 5 or adhesion grippers, vacuum grippers or the like are provided, which ensure that the strapping band 15 is pulled onto the article group 12. These can either be distributed along the surrounding contoured guide 51 or located specifically at prominent points, for example in the area of the corner radii or the like.
- a contoured clamp with a plunge edge or an undercut can be possible along the entire contoured guide 51 of the cage 50 of the application head 1 or also in parts.
- the application head 1 equipped with the at least one strap 15 is then lowered over the articles 10 by means of an infeed movement, with the cage 50 of the application head 1 contacting the grouped articles 10 on their lateral sides of the articles 10 and at least slightly compressing them.
- the application head 1 is lowered over the grouped articles 10 in the present context, this can also mean lifting the grouped articles 10 from below into the application head 1 or generally an infeed movement of the articles 10 and the application head 1 with a direction of movement parallel to the longitudinal central axes of the articles 10 are meant. It should therefore be made clear that these variants can also be included in the formulation of lowering.
- the downward movement is stopped (FIG. 9).
- the at least one strapping band 15 is now released and detached from its fixed position within the application head 1.
- the opening width W of the cage 50 of the application head 1 is increased in order to eliminate the compression between the cage 50 and the strapped article group 12 .
- the strapped article group 12 forms a strapping bundle 13 after the application head 1 has been detached.
- the cage 50 is opened by opening movements of individual segments of the cage 50 directed perpendicularly away from the lateral surface of the article 10.
- the contour pieces 2 are moved away from one another in the opposite direction of movement, which is illustrated by the arrows in Fig. 10 .
- the application head 1 is transferred to the release mode FM with a second opening width W2.
- the contour elements 2 are moved away from the finished strapping container 13 via a movement perpendicular to the longitudinal axis L of the article, with a rotational movement and a combination of rotational and translational movements also being conceivable.
- the compression of the cage 50 is released as soon as the strapping strip 15 is stripped off and attached to the article group 12 at its intended target position and positioned there with the intended pretension.
- the clamping elements 3 it may be necessary—if, for example, the clamping elements 3 hold the strapping band 15 at the lower edge—after releasing the fixing, it may also be necessary to continue the downward movement of the application head 1 until until the strapping band 15 is arranged outside the fixing area and possibly only then the compression of the articles 10 to resolve (Fig. 11). In addition, in order to release the compression, it may also be necessary to move the clamping elements 3 away from the strapping bundle 13 in order to avoid a collision with the strapping bundle 13 when the application head 1 is lifted.
- the application head 1 in release mode FM is removed from the strapping container 13 in the opposite direction to the application direction and is moved back to a starting position, for example, for reloading with a strap 15 (FIG. 12).
- a strap 15 FIG. 12
- the strapping bundle 13 is released and can now be supplied for further handling, for example palletizing or the like (not shown here).
- the application head 1 is brought back into the operating mode BM by a corresponding infeed movement of the contour pieces 2 .
- connection point in particular a splice or weld or the like
- the connection point in which areas of the strapping band 15 can optionally be arranged overlapping one another, from getting caught on guide rails of subsequent handling modules or the like and the strapping band 15 being able to tear open accordingly.
- FIGS. 13 to 15 show different views of a contour piece 2 of an application head 1, as has already been shown and described above.
- FIGS. 13 and 15 each show a side view and FIG. 14 a top view of the contour piece 2.
- the contour pieces 2 are shaped and designed in such a way that when installed they have an insertion area 7 , a compression area 8 and an area 9 set back behind the compression area 8 in the direction of the article longitudinal axis L (compare FIGS. 2 and 12 ).
- the recessed area 9 is designed in particular as a dipping edge 20 or undercut 21, which is intended to make it possible to guide the strapping to its intended position without it being stripped off the contour pieces 2 prematurely.
- the strapping band 15 is placed in the recessed area 9 of the contour piece 2 (FIG. 15). This is necessary in order to put the strap 15 on to prevent the contour of the article 10, which could lead to premature snagging of the strap 15 during the downward movement of the application head (see FIGS. 6 to 9).
- the strapping band 15 could be overstretched or damaged or a correct application to the article group 12 could be prevented.
- the circumference of the closed strapping band 15, which is in particular prefabricated, is selected in such a way that it is protected by the recessed area 9 or undercut 21, but not larger than necessary.
- a strap 15 with too large a circumference would not achieve sufficient tension between the strap 15 and the article group 12, which is to be avoided.
- the friction between the articles 10 would be lost, which would lead to reduced bundle stability.
- the useful length of the strapping depends on the total circumference of the article grouping 12 and the deformability of the articles 10 in the grouping, which can ensure the strapping tension through their restoring forces after the strapping has been applied.
- the compression applied to the individual articles 10 of the article group 12 is defined by the geometry of the contour piece 2 and the inner opening width of the cage 50 with the contour pieces 2 arranged therein.
- the strength of the compression is determined via the difference between the compression radius R for the respective compression axis and the uncompressed article radius.
- the contour piece 2 can in particular have a radius R(l) for the compression K(l) along the article group 12 and/or a radius R(q) for the compression K(q) transversely to the article group 12.
- the compression is always applied in at least one direction to the articles 10 of the article group 12 that are respectively contacted.
- compression K(l) is applied lengthwise to article group 12.
- a compression K(q) can also be applied transversely to the article group 12.
- the combination in both compression axes is also possible, i.e. a compression K(l) along the article group 12 and a compression K(q) transverse to the article group 12. In this case, the movement of the contour piece 2 according to FIG illustrated direction of movement BR.
- the inner contour is 22 of the contour piece
- the respective compression radii R(l) and R(q) can be selected differently.
- An additional setting of the final compression can be made in addition to the geometry of the contour pieces 2 via a further infeed of the contour pieces 2 to the article group 12.
- the selected shape and inclination of the insertion bevel referred to as the compression bevel 6 can be used to influence how quickly the desired compression of the article group 12 is achieved.
- the selected shape also results in how much downward stroke of the application head 1 or what relative stroke in the direction of the longitudinal axis of the article with respect to the article group 12 is required.
- this also influences how much force has to be applied for the compression, since depending on the steepness of the compression slope 6 more or less friction is generated when the strapping unit 70 of the application head 1 is pushed onto the article group 12 .
- the geometry suitable for the respective article group 12 can be designed via the height H of the insertion area 7 and the angle a of the compression bevel 6, in particular depending on the desired compression, the article geometry and the corresponding friction pairings.
- the application head 1 is preferably designed in such a way that it can also be used to process different articles 10 with the same or a similar article geometry, even if the opening width of the cage 50 differs from the base area of the respective article group 12 . If the application head 1 is to be usable for different basic dimensions of different article groups 12, the desired or technically required compression must be able to be set by appropriately positioning the contour pieces 2 in the longitudinal and transverse axes. This means that defined, similar diameter ranges can be covered.
- the cage 50 provided by the strapping unit 70 of the application head 1 can also be enlarged or reduced by optionally inserting further guide and holding elements 4 or by removing guide and holding elements 4 and thus be adapted to different container sizes.
- the articles 10 are pressed between the strapping band 15 by the contour pieces 2 of the strapping unit 70 of the application head 1, whereby due to the compression of the articles 10 there is initially a certain distance between the strapping band 15 held in the strapping unit 70 of the application head 1 and the Article group 12 exists. There is thus a spatial separation between the strapping band 15 and the articles 10, which is eliminated by the release of the compression.
- FIGS. 16 to 21 show a transfer process of the prefabricated strapping band 15 to the application head 1 so that it can be made ready for the application of the strapping to a prepared article group 12 .
- FIGS. 16, 18 and 20 each show a side view of the application head 1, while FIGS. 17, 19 and 21 show a corresponding view from above.
- a transfer element 25 which has exactly or approximately the contour of the prefabricated strapping ring 15 to be used, is used for the purpose of inserting the strapping into the application head 1.
- the transfer element 25 accepts the ring-shaped strapping 15 from a corresponding preparation module (not shown).
- the transfer element 25 with the strap 15 is placed over the application head ( Figures 16 and 17).
- the strapping band 15 is preferably fixed to the transfer element 25 via suitable suction elements or clamping elements or other suitable fixing devices, with the lower edge of the strapping band 15 preferably protruding below the transfer element 25, so that the lower region of the strapping band 15 fits into the clamping elements 3 of the application head can be introduced. If the strapping band 15 is held within the application head 1 only via suction elements 5, there is no need for the strapping band 15 to protrude below the transfer element 25. In addition, it would also be possible in this case to introduce the strapping band 15 into the transfer element 25 from below.
- the strapping band 15 is now placed in a desired arrangement within the application head 1 by a downward movement of the transfer element 25 and/or an upward movement of the application head 1 (FIGS. 18 and 19).
- the strapping band 15 is handed over to the application head 1 by the transfer element 25 .
- the transfer element 25 is then removed by an upward movement thereof or a downward movement of the application head 1 (FIGS. 20 and 21) and moved into a starting position for reloading with another strapping band 15 .
- the transfer element 25 can be segmented, with the segments being able to be moved in the direction of a center of the transfer element 25, as a result of which the circumference of the transfer element 25 is reduced.
- the strapping band 15 does not have to be glued or otherwise fixed to the article group 12 .
- the complexity of the strapping process can be reduced by using the appropriately designed application head 1 .
- FIGS. 22 and 23 show the pre-production of the strapping band 15 in a preparation module 30.
- an endless strapping material 16 is provided, for example as roll material 17, in a required width. This is fed to a separating device 32 in a corresponding preparation module 30 via a feed device 31 .
- the feed device 31 can be formed, for example, by two rubber-coated rollers rotating in opposite directions, which unwind the roll material 17 accordingly.
- the separating device 32 is formed, for example, by a downstream knife or another suitable cutting unit.
- the strapping material 16 is cut off in a defined length by the cutting device 32 and the free end regions of the strapping material 16 cut to length are connected to one another to form the annular, prefabricated strapping band 15 .
- the free end areas are arranged partially overlapping and connected to one another by gluing or a welding process or the like.
- a gluing unit 33 which includes a glue application device 34 and a pressing device 35 to form an adhesive connection.
- a frame 36 is assigned to the gluing unit 33, which frames the desired circumference of the strapping band 15 to be formed in a recess. Furthermore a revolving conveyor unit 37 assigned to the frame 36 is provided.
- the frame 36 can be constructed in segments and the frame circumference and thus the circumference of the strapping band 15 to be formed can be adjusted by adjusting individual frame segments.
- one or more vacuum belts and/or mechanical conveying elements for example rotating clamping elements, rubberized belts, conveyor belts or the like can be used.
- the strapping material 16 is conveyed once around the complete inner or outer contour of the frame 36 via the conveying unit 37 until an overlap in the region of the gluing unit 33 has arisen.
- the strip of strapping material 16 cut to length is provided with glue in the beginning area and/or at the end area via the glue application device 34, the beginning area and the end area are arranged overlapping one another and then pressed out by a pressure stamp of the pressing device 35, whereby a resilient connection is produced.
- the correspondingly closed strapping band 15 can now be grasped by a transfer element 25 in the manner described above and fed to the application head 1 of an application module 40 for strapping a group of articles.
- the application module 40 has a movement and/or handling space for the application head 1 for interaction with at least two articles grouped within the movement and/or handling space.
- FIG. 24 shows what is known as inline printing during the formation of a strapping band 15, which is provided as endless roll material 17 according to FIGS.
- a type of scattered print 44 is applied to the roll material 17 as the basic print design. This is a print image that is repeated at a defined distance A.
- the distance A is formed in such a way that it leads to at least one complete repetition of the pattern per length of a strapping band 15 for all formats to be processed, in particular container circumferences, in the respective width of the strapping material 16 .
- At least one empty field 45 is formed as a component of the scattered print 44 .
- the desired printing can be done inline in this empty field 45, for example in the form of a barcode, format information, best-before date or similar the formation of the closed strap 15 takes place.
- a corresponding printer unit can also be assigned to the application module 40, in which case the printing can take place before the closed strapping band 15 is applied to the grouped articles or after the strapping bundle has been formed.
- the position of the inline printing within the empty fields 45 can be done either by evaluating the unrolled length and back-calculating the position of the empty field 45 to be printed.
- a sensory detection of the empty space or other markings present on the strapping material 16 can be provided.
- the detection of a special geometric marking that is part of the scattered print 44 is conceivable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020247014855A KR20240089317A (ko) | 2021-10-12 | 2022-09-13 | 스트래핑된 패키지를 제조하기 위한 방법, 적용 디바이스 및 패키징 디바이스 |
AU2022362552A AU2022362552A1 (en) | 2021-10-12 | 2022-09-13 | Method, application device, and packaging device for producing strapped packages |
CA3234780A CA3234780A1 (en) | 2021-10-12 | 2022-09-13 | Method, application device, and packaging device for producing strapped packages |
CN202280065416.4A CN118019691A (zh) | 2021-10-12 | 2022-09-13 | 用于制造捆包的方法、应用装置和包装装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021126398.0 | 2021-10-12 | ||
DE102021126398.0A DE102021126398A1 (de) | 2021-10-12 | 2021-10-12 | Verfahren, Applikationsvorrichtung und Verpackungsvorrichtung zur Herstellung von Umreifungsgebinden |
Publications (1)
Publication Number | Publication Date |
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WO2023061680A1 true WO2023061680A1 (de) | 2023-04-20 |
Family
ID=83318742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2022/075408 WO2023061680A1 (de) | 2021-10-12 | 2022-09-13 | Verfahren, applikationsvorrichtung und verpackungsvorrichtung zur herstellung von umreifungsgebinden |
Country Status (6)
Country | Link |
---|---|
KR (1) | KR20240089317A (de) |
CN (1) | CN118019691A (de) |
AU (1) | AU2022362552A1 (de) |
CA (1) | CA3234780A1 (de) |
DE (1) | DE102021126398A1 (de) |
WO (1) | WO2023061680A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3186333A (en) * | 1963-11-01 | 1965-06-01 | Kett Tool Co | Rubber band stretching apparatus |
DE102009040700A1 (de) | 2009-09-10 | 2011-03-24 | Krones Ag | Verfahren und Vorrichtung zur Herstellung von Gebinden |
US20140216661A1 (en) * | 2011-09-06 | 2014-08-07 | Fuji Seal International, Inc. | Label attachment device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019113179A1 (de) | 2019-05-17 | 2020-11-19 | Krones Aktiengesellschaft | Gebinde, Verfahren zur Herstellung von Gebinden und Gebindebildungsvorrichtung |
DE102019113181A1 (de) | 2019-05-17 | 2020-11-19 | Krones Aktiengesellschaft | Umreifungsvorrichtung, Vorrichtung und Verfahren zur Herstellung eines wenigstens einen Artikel umfassenden Gebindes |
DE102020207930A1 (de) | 2020-06-25 | 2021-12-30 | Krones Aktiengesellschaft | Verpackungsvorrichtung zum Herstellen von Gebinden, bei welchen mehrere Artikel über eine Umreifungsbanderole zusammengehalten sind |
-
2021
- 2021-10-12 DE DE102021126398.0A patent/DE102021126398A1/de active Pending
-
2022
- 2022-09-13 CA CA3234780A patent/CA3234780A1/en active Pending
- 2022-09-13 WO PCT/EP2022/075408 patent/WO2023061680A1/de active Application Filing
- 2022-09-13 KR KR1020247014855A patent/KR20240089317A/ko unknown
- 2022-09-13 CN CN202280065416.4A patent/CN118019691A/zh active Pending
- 2022-09-13 AU AU2022362552A patent/AU2022362552A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3186333A (en) * | 1963-11-01 | 1965-06-01 | Kett Tool Co | Rubber band stretching apparatus |
DE102009040700A1 (de) | 2009-09-10 | 2011-03-24 | Krones Ag | Verfahren und Vorrichtung zur Herstellung von Gebinden |
US20140075885A1 (en) * | 2009-09-10 | 2014-03-20 | Krones Aktiengesellschaft | Method and device for making packs |
US20140216661A1 (en) * | 2011-09-06 | 2014-08-07 | Fuji Seal International, Inc. | Label attachment device |
Also Published As
Publication number | Publication date |
---|---|
AU2022362552A1 (en) | 2024-05-02 |
CN118019691A (zh) | 2024-05-10 |
DE102021126398A1 (de) | 2023-04-13 |
CA3234780A1 (en) | 2023-04-20 |
KR20240089317A (ko) | 2024-06-20 |
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