DK157797B - BIG PACKAGE AND PROCEDURE FOR MANUFACTURING THIS - Google Patents

Abstract

1. Process for the manufacture of a bulk package (19) which can be stacked automatically on pallets, for a plurality of goods (23) combined to form packs (5), in particular light-weight goods, such as paper handkerchiefs and rolls of paper kitchen towels, wherein at least two of the light-weight goods (23) are combined to form a pack (5) and at least four packs (5) from a bulk package (19) which is covered in partial areas by a continuous sheet material (1), wherein the sheet material (1) is conveyed to a packing station, a predetermined number of packs (5) are placed thereon and the sheet material (1) is moulded into a U-shaped casing (4), the region of the sides (6) of the U-shaped casing (4) protruding above the packs (5) are folded down over the packs (5) and the U-shaped casing (4) is folded in and secured, characterized in that a row (14) of packs (5) which are to be combined to form one bulk package (19) is disposed tranversely on the continuously fed sheet material (1), this is folded parallel to its direction of feed to form a U-shaped casing (4) in such a manner that its sides (6) protrude above the height of the packs (5), the end faces are folded in and secured and the protruding area of the sides (6) is turned down over the first and last pack (5) of the row (14), wherein the width of the roll of material (2) is so chosen that after the sides (6) have been turned down they form an edge strip (12) which covers the thickness (13) of the first and last pack (5) by at least 40 % and up to a maximum of 90 %.

Description

in

DK 157797 B

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a method of producing a palletized automatically stackable package for several items summarized in packages, preferably low weight items, such as paper towels and kitchen paper rolls, wherein at least two packages or rolls are summed in each package, and at least four packages form one. large package, which is covered in sub-regions with a web-shaped material by passing the web-shaped material to a packaging station where a certain number of packages are placed on the web-shaped material, and this is formed into a U-shaped channel and the over 10 packages carrying parts the sidewalls of the U-shaped gutter are bent over the gaskets and the U-shaped gutter is folded in and fixed. Such a method is known e.g. from U.S. Patent No. 2,895,601.

The invention further relates to a light package prepared by this method.

Known large packages containing various number of packages are usually packaged in a foil package closed on all sides. These large packages are stacked on a pallet, but have the disadvantage that they must be opened individually when the packages contained therein have to be provided with price tags or labels. The cutting of these large packages takes place in the shop, whereby the packages with their contents are in many cases damaged by the cutting and thus cannot be sold. Large buyers, such as department stores and supermarkets, therefore prefer a solution in which the small packages are stacked in a 25 tray that has approximately the same dimensions as a pallet, and several of these trays are placed in 4 to 8 layers above the height of the packages. on one another on one palette, and the last tray is covered with another tray as a lid. Do not stack any of the gaskets in these trays manually and is therefore very time consuming. Furthermore, the 30 trays are very space consuming, which is a disadvantage in supermarkets and department stores in particular, since these trays usually are made of cardboard or cardboard in large quantities and must be disposed of.

German publication specification No. 3,123,212 discloses a package for several articles in which the individual articles are welded between two sheets, of which the topsheet has interruptions, openings or incisions that must be placed at each of the packaged articles or at certain of the items that make up the contents of the packaging. In this known packaging, it is therefore necessary to place the topsheet in such a way that the interruptions

DK 157797 B

2 or the openings are located above the packaged articles so that they can be labeled and / or removed through the openings.

This means that for each kind of packaging goods a different topsheet should be used, i.e. a topsheet with apertures 5 adapted to the size of the packaged article. When packing different articles, it is therefore necessary to use one for each article separately for this adapted topsheet, which requires higher storage capacity and entails continuous conversion work.

From U.S. Pat. No. 3,336,727, it is known to assemble cardboard trays with tin cans disposed therein, wherein several filled trays are placed one on top of the other and placed on a packing stretch. On this packing section, shrink film is rolled from above and passed as a continuous U-shaped tunnel across the 15 stacked trays on top of each other. After this film is cut and adhered underneath the lower tray, the thus-formed bulk package is introduced into a shrinking furnace where the film is shrunk-thereby filling the packaged cans on all sides and can neither be labeled nor removed without destruction of the bulk package.

20 From US Patent Nos. 2,895,601 and 3,771,744, it is known as packaging material for large packages to use cardboard or other sheet-shaped material, i.e. a cut issue. Thus, there is not continuous work here from a roll. The folding of cut items is time consuming * and necessitates, as an extra 25 working hours, the manufacture of the cut item. Furthermore, as the finished product, there is also here a rigid bulky packaging of the bulk package with the consequent difficulties described with regard to the disposal of packaging material one from the sales room.

The object of the invention is therefore to provide a large package in a commercially available material that does not require separate treatment, which large package must be able to be stacked fully automatically on pallets and enable safe handling on conveyor and roller conveyor sections, even when it has a soft and easily deformable content. Furthermore, at the size of the package, it must be possible to take out the packages packaged therein without separate opening thereof. Furthermore, the use of the bulk package must reduce the amount of used packaging material in stores, so that this takes up little space.

These tasks are solved by a method to

DK 157797 B

Preparing a pallet automatically stackable large package for several packages summarized in packages, preferably lightweight, such as paper handkerchiefs and kitchen paper rolls, wherein at least two packages or rolls are summarized in each package, and at least four packages form a large package which in sub-regions is coated with a web-shaped material by passing the web-shaped material to a packaging station where a certain number of seals are placed on the web-shaped material and this is formed into a U-shaped gutter and the portions extending above the gaskets shaped sidewalls 10 of the shaped gutter are bent over the gaskets and the U-shaped gutter is folded and fixed, which is characterized in that a number of gaskets to be summed in a large package are placed across the continuously fed web-shaped material, that this web-shaped gutter material parallel to its direction of conveyance is folded into a U-shaped gutter in such a way that sheer its side walls protrude above the height of the gaskets and are folded and fixed at the end faces, and the projecting regions of the side walls are bent over the first and last gaskets in the row, and the width of the material roll is selected in such a way that the bend 20 forms an edge strip covering at least 40% and a maximum of up to 90% of the thickness of the first and last gasket.

A large package made by this method is open at the top, so that the application of price labels to the individual packages is possible without extra workflow. When using a web-shaped material for the manufacture of the package of the large package, the hitherto usual use of cardboard trays in which the individual packages are to be stacked, i.e. that the amount of used packaging material in shops is significantly reduced, since no more space-consuming material that is difficult to deform is used. Despite these surprising advantages, the bulk package is stable enough to safely handle belt or roller conveyors, so that at such different horizontal and / or vertical plane and / or vertical movement speeds as occurs with automatic pallet loading, 35 damage to the large package occurs.

If wrapping paper is used as a wrapping material, the fixation of the folding bottom is conveniently done by means of hot-melts. However, according to a preferred embodiment of the invention, a polyolefin is used as a material for the web-shaped material.

DK 157797B

and the folding of the folding base is done by welding the folding joints. The guide of the polyolefin material web can be effected in such a way that the rear end edge of the first major package and the front end edge of the following major package are formed simultaneously, i.e. 5 during welding, a double stitch or a wide stitch is formed, and the separation of the first large package from the second large package takes place respectively between the two stitches of the double stitch or approximately in the middle of a wide stitch. In relation to the use of wrapping paper, in which the separation is to be done by means of a knife, the separation is simplified by the use of polyolefin materials, since a heating wire here as a "hot knife" can take over the separation function.

A large gasket made by the method according to the invention is characterized in that a number of gaskets are arranged across the web-shaped material, each of which folds up around the ends of the row each forming an edge strip having a width of 30-120 mm and being associated with a tab extending on the end faces.

The package of the large package produced by the method is in the form of a fruit box, usually referred to as a tray, which consists of quite thin wood, and at each of its ends has a wooden strip as a handle. In the large package according to the invention, the package, which can be referred to as a foil tray, according to a preferred embodiment of the invention instead of wooden strips has an edge strip with a width of 30-120 mm, which is connected to a tab extending at the end portions 25.

The tab formed at the cutting through the wide weld seam, respectively, between the two parallel weld seams between the rear end face of the first large package and the front end surface of the second large package, braces the large package, i.e.. the foil tray because it extends substantially perpendicular to the end surface. However, for large trays, where the length of the tab is 450 mm or more, there is a danger, especially if the tray is filled with soft deformable objects, such as kitchen paper rolls, that the middle area of the end surface, through automatic conveying on runways, bulges outwards and reaches 35 engagement with the runway guides. The resulting disturbances in the workflow can only be eliminated manually.

Therefore, in a preferred embodiment of the invention, at least one reinforcing strip is disposed between the two edge strips which conveniently extends across the impact site between the

DK 157797B

some seals in the foil tray. Advantageously, the reinforcing strips are welded with tab and have a width of between 25 and 160 mm. In this connection, it is important that the width of the reinforcing strip is chosen in such a way that the deflection of the tab 5 is prevented, but that the packaged packages are nevertheless so accessible that labeling is possible.

According to further embodiments of the invention, the packaging material of the bulk package may consist of a polyethylene foil having a thickness of 50-100 µm and the height of the bulk pack may be equal to or less than 400 mm and the width equal to or less than 600 mm and the length be equal to or less than 800 mm. For foil trays designed in this way, packages having a maximum weight of 15 kg can be summarized, while the lowest economic limit is at 2 kg, although the limits are preferably between 4 kg and 10 15 kg, and 2 kg corresponds to 12 kitchen towels.

The invention is explained below with reference to the exemplary embodiments shown in the drawing. In the drawing: FIG. 1 is a large package of layered packaged toilet paper sheets summarized for individual packages; FIG. 2 shows a foil tray without contents; FIG. 3 is a large package containing six packages of four kitchen paper rolls; FIG. 4 shows a foil tray with reinforcing strip for kitchen paper rolls; FIG. 5 shows a large package with several reinforcing strips; and FIG. 6A-6G in the form of principle sketches the individual steps of the packaging process.

FIG. 1 shows a large package of six packs 5, each pack 5 containing twelve packs of folded toil one-30 sheets of 140 sheets, as is usually sold in France. Each pack 5 is the pack size that the consumer takes out of the pack 19, which must therefore be labeled carefully.

FIG. 2 shows the packaging of the big package 19 without content to give 35 a better overview of this so-called foil tray. As seen in FIG.

2, it is a basket-shaped package which, however, consists of a very soft material, so that in the form shown it is only self-supporting if it consists of a relatively strong foil or of strong wrapping paper. Its shape is thus heavily dependent on

DK 157797 B

6 shows the goods contained in the package, which is very clearly shown in FIG. 4, where this foil tray has rounded edges, due to the fact that it is shown here as containing seals 5, each comprising four kitchen paper rolls 23.

FIG. 3 shows a large package consisting of six packages 5, each containing four kitchen paper rolls 23. The packages 5 are therefore rounded at their narrow sides, which is why this rounding also occurs at the large package. FIG. 3 differs substantially from FIG. 1 and 2 in that there is no reinforcing strip 16. This reinforcing strip 16 is also necessary only if the tab 18 is of such a length that without this reinforcing strip 16 there is a deflection of the tab 18, which will cause interference on the conveying line. for the big package. In Fig. 5 there is therefore shown a large package of five additional reinforcing strips 16, each of which extends over a shock location 16 between the individual packages 5.

However, this type of packaging is only used for large packages of very large dimensions, so that there is a great danger of deflection of tab 18. The preparation of the large package is described in detail below with reference to FIG. 6A-6G.

20 From a material placed in a packing station 3, roll 2 is drawn as web-shaped material 1 a polyethylene foil having a thickness of 80 μια. This polyethylene foil is passed over the packing station 3's table 22. Perpendicular to the table 22 is placed a feed belt 21, on which four kitchen paper rolls 23, which are summed up to a packing 5, are transported to the table 22 and pushed onto it. The material web 1 moves further as soon as the required number of gaskets 5 is on the material web. In the present case, six packages are summarized 5.

The edge areas of the material web 1 are aligned below the feed rate (Fig. 6B), thereby forming a U-shaped gutter 4 with side walls 6 projecting above the gaskets 5. This U-shaped gutter 4 is passed through guide plates 24 and its side walls 6 is inserted over the edges of the seals 5 (Fig. 6C) and forms the edge strips 12. Thus, the seals 5 are received in an open hose formed by the material web 1.

A narrow material web 7 is passed over the gaskets 5 received in the material web 1 (Fig. 6D) in such a way that it covers the impact sites 17 between two gaskets 5. By means of a roller not shown, the material web 7 is pressed against the gaskets 5 and held in place.

DK 157797B

7 this position. A slider 20 pushes rearwardly against the rows 14 of gaskets 5 disposed between the baffles 24, while folding sword 9 is simultaneously guided from both sides towards the U-shaped gutter 4 formed by the material web 1 and folding the folding snaps 15.

5 While the folding swords 9 are still in the extended position (Fig. 6E) and the slider 20 from behind pushes against the gaskets 5, two sealing trays 25 are moved from top to bottom and meet at the height of the seals 5, whereby the end piece 8 of the U-shaped trough 4 forms a folding base 10. Between the sealing 10 trays 25 is placed a heating wire 26 which, after compression with the sealing trays 25, cuts the polyethylene foil, of which the material web 1 consists, between the welding seams 27.

In this welding process, the rear end surface 8 of the first package 19 and at the same time the front end surface 8 of the second package 19 are formed (Fig. 6F).

The large package thus formed (Fig. 66) is shown in Figs. Third

The material web 7 adhered to the seals 5 is welded together by the tab 18 formed during the welding process and forms the reinforcing strip 16. If very narrow seals 5 are joined together into a 20 large package, several reinforcing strips 16 may be placed side by side instead of a single reinforcing strip 16. however, all of them are arranged in such a way that they each cover the impact site 17 between two packs 5, yet leaving enough space for price labels to be placed on the packs 5.

The thickness 13 of the gaskets depends on their contents and the placement of the contents of the gasket 5. It simultaneously determines the width of the edge strip 12 and the width of the reinforcing strip 16.

The width 11 of the material roll 2 is selected in such a way that the edge strip 12 covers half the thickness of the gasket 5.

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Claims (9)

A method of making a pallet automatically stackable large package (19) for several 5 items (23) summarized in packages (5), preferably of low weight, such as paper towels and mill paper, wherein at least two packages or rolls are summarized in each package, and at least four packages (5) form a large package (19) enclosed in subareas with a web-shaped material (1) by passing the web-shaped material (1) to a packaging station (3) wherein a certain number of gaskets are placed on the web-shaped material (1) and this is formed into a U-shaped gutter (4) and the portions (12) protruding over the gaskets (5) of the side walls (6 of the U-shaped gutter) ) is bent over the gaskets (5) and the U-shaped gutter (4) is folded and fixed, characterized in that a series of 15 (14) gaskets (5) to be assembled in a large package (19) are placed transversely of the continuously applied web-shaped material (1), this being parallel to its direction of travel o is folded into a U-shaped gutter (4) in such a way that the side walls (6) of the gutter (4) protrude above the height of the gaskets (5) and are folded and fixed 20 at the end faces and the projecting areas of the side walls (6) ) is bent over the first and last gasket (5) in the row (14) and the width (11) of the roll of material (2) is chosen in such a way that the walls (6) after the bending form an edge strip (12) which covers at least 40% and a maximum of up to 90% of the thickness (13) of the first 25 and the last pack (5). Method according to claim 1, characterized in that a polyolefin is used as material for the web-shaped material web (1) and that the folding base (10) is fixed by welding the folding joints (15). Method according to one of Claims 1 and 2, characterized in that at least one reinforcing strip (16) is arranged between the two edge strips (12). Method according to any one of claims 1-3, characterized in that the reinforcing strip (16) or the reinforcing strips extend over impact points (17) between the seals (5). Large package made by the method according to claims 1-4, characterized in that a row (14) of gaskets (5) is arranged transversely on the web-shaped material (1), the ends of which are folded around the ends of the row (15). 6) each forming an edge strip (12) having a width of 30-120 mm and connected to a tab (18) extending on the end faces (8,8 '). Large pack according to claim 5, characterized by a reinforcing strip (16) connecting the two end faces (8) if the length of the tab (18) is more than 450 mm and / or the packings (5) stacked in the large package (9). has a small thickness (13). Large package according to one of claims 5 and 6, characterized in that the reinforcing strip (6) is welded together with the tab (18). Big pack according to any of claims 5-7, characterized in that the reinforcing strip (6) has a width of 25-160 mm. Large package according to any one of claims 5-8, characterized in that it consists of a polyethylene foil having a thickness of 50-100 μη. 20 25 30 35