DE2307106A1 - COLLIS CONTAINING MULTIPLE LAYERS OF PACKAGING ITEMS, AS WELL AS THE MACHINE AND METHOD OF ASSEMBLING THESE - Google Patents

Description

DIPL.-ING. MY

PATENT ' : -i WALT

46OO DO 1-1 :: -! AND

.WESTENHEi-L.Vv EG 6 7 TELEPHONE 145Q1O

"Workshop owner G-ustav Gilbert Magnussen, Kameolgatan 77, S-421 51 VÄSTRA I ¹ ROLUNDA, Sweden

and

Engineer Karl Ingvar ¥ one,

Chapnians-torg 4, S-414 54 GÖTEBORG, Sweden

Successive of several layers of stacked Verpackii sic C o nn egenstände existing colli sov / ie machine and method for Z usamm nstellun e g of the same,

Inventor: Engineer Halvor Gräsvoll

Eg is previously known, consisting of several layers stacked on top of one another ■ Packaging items existing packages of parallelepiped shape wrapped in a plastic film, with the package wrapped in two film bands forming a right angle with each other becomes and that in an inner, four a common plane crossing and one behind the other side surfaces of the package covering film band and an outer, the two remaining side

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23-71

areas of the package and two covering the sides of this package Foil banderole, which pages are already through the. inner foil sleeve are covered, with the long edges of the the outer film band to extend outside the package. These two film bands consist of a plastic film, a so-called "shrink film" and the package wrapped in it then conveyed through a heat tunnel in which the cover is heated so that the outer film band shrinks and with their protruding longitudinal edge parts, the parts of the inner film band located at the edges of the package covered.

However, this method has some disadvantages. On the one hand, the purchase of a warning tunnel is very complex and on the other hand, the shrinking makes the film very wrinkled, which is why the package is less aesthetically pleasing Appearance is given. If the package is unprotected in a storage area and exposed to a rain shower, it can Any rainwater can penetrate at the corners of the package, since the outer film band does not move when it shrinks waterproof around the inner film band.

The object of the present invention is to solve this Problems to be found, and the invention is characterized in that the longitudinal edge parts extending outside the package the outer film band on both front sides of the KoIr ' lis bent and with the parts of the inner foil band located here welded / grounded. In this welding process, no shrink film is required, but any desired one, preferably but transparent plastic film that can be welded can be used. In addition, no heat tunnel is necessary and the package has smooth outer surfaces and is therefore aesthetic more appealing, as well as completely waterproof wrapped.

The present invention also relates to a machine for implementation of the process and packages wrapped in plastic film after this process.

30 9 85 0/032 U

In the following, the invention is attached with reference to the " Drawings explained in more detail. Show it:

Pig. 1, in perspective, obliquely from above, a package of the present invention, which is only partially wrapped, and Pig. 2 in perspective obliquely from below the lower end of this package. Pig. 3 is a top perspective view similar to that of Pig. 1 in a package, which is put together in a slightly different way and is also only partially used. Pig. 4 schematically shows a side view a machine of the present invention, by means of which the above Long edges of the outer banderole are curved and be welded and pig. Figure 5 is a partially sectional view Top view of this machine.

That in Pig. Package A shown in 1 and 2 consists of layers 1, 2, 3, 4 and 5 of packaging items stacked on top of one another. The lower layer 1 is narrower and shorter than the layers 2-5 on top of it, so that it is below the outer edges the layer 2 v / ground cavities' 6 into which the fork legs 7 (Pig. 1) of a forklift truck for lifting and transporting the relevant package can be retracted. In one on Oen drawings not shown stacking and wrapping machine a banderole was wrapped around four of the sides of the package in such a way that the lower and upper layers' 1 and 5 of the packaging items, as well as the front sides of the package were covered. A welding unit (also not shown) which extend to the outside of the lowest layer 1 extending parts 9, 10 (Pig. 2) of the Polienbanderole 8 upwards against the downwardly directed outer edges 11 of the layer 2 pressed and welded to one of the outer edges 11 covering plastic film attached. A second film band 13 was then placed at right angles with respect to the poly band 8 attached in such a way that the two sides of the package that are not yet covered and the sides already covered by the inner banderole 8 covered floor area and surface are enveloped. The outer band 13 extends with its longitudinal edge parts 14 (see above in Pig. 1) up to the package. The upper part 15

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these longitudinal edge parts 14 and their two ^ side parts 16 and 17 are made using a machine of the present invention Bended over the nearby parts of the film band 8 and connected to these parts by weld seams 18. The lower The end (not visible in FIG. 1) of the longitudinal edge parts 14 was in a previously known "process by welding seams 12 on the edge surfaces 11 of the plastic film for layer 2 is welded in place.

After all these welding processes, the package is now complete waterproof wrapped.

The frame of the wrapping machine illustrated in FIGS. 4 and 5 of the drawings consists of two frames 19 which carry three pairs of welding jaws 20, 21 and 22, 23 and 24, 25. Each welding jaw is mounted pivotably about an axis 26, 27, 28 assigned to it. The axis 26 is arranged horizontally, while the other axes 27 and 28 are arranged vertically. Each of these axes 26, 27, 28 is carried by sleeves 29, 30 which can be displaced, adjusted and locked on rods 31 carried by the frame 19. The pairs of welding jaws 20-25, which are equipped with resistance wires that can be connected to an electrical power source, are each carried by an arm 32 assigned to them, and the arms 32 for each pair of welding jaws 20, 21 or 22, 23 or 24 , 25 are articulated to one another by a pair of hydraulic piston cylinders 33, 34 or 35, 36 and 37, 38.

In Fig. 4 and 5, the package A was standing on a conveyor 39 in the Wrapping machine conveyed in which it assumes the position indicated by dash-dotted lines. The protruding longitudinal edge parts 14 the outer film band 13 when a print is applied in the hydraulic piston cylinders 34, 36 and 3.8 by the pairs of welding jaws 20-25 due to the Schwenkuiig whose arms 32 around their relevant axis 26, - 27, 28 over the two front sides of the package bent where the end parts 15, 16 and 17 of the film band 13, such as -. is indicated in Fig. 1, v / grounded by the weld seam 18 to the edge portions of the film band 8 located here, the layers 2, 3, 4 and 5 of the packaging objects located within the envelope during this welding process serve as a counter holder.

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Mr one package 3 of the in Pig. The embodiment shown in FIG. 3, as according to the invention, is to be wrapped in plastic film, the bottom layer 1 'of which is the same size as the layers 2, 3 4 located on it, but the lower part of the protruding long edge portion 14 of the outer film band 13 must be in front of the The end walls of the package B are bent upwards and attached by a weld seam 41 to the part of the inner film band 8 located under the part 40. For this purpose, the impact nacchiae also require a pair of welding jaws located at the lower end of the same (not shown in the drawings). This package, too, will undoubtedly be sealed completely watertight.

The embodiment shown and described is only to be regarded as an example, and the welding and wrapping machine can be structurally changed in various ways within the scope of the following claims. The movements of the white cheeks 20-25 can also be effected in other ways than the hydraulic piston cylinders.

30985Ü / 032A

Claims (5)

Claims 1 J A parallelepiped-shaped package consisting of several layers of packaging items stacked on top of one another, which one in two banderoles forming a right angle with each other weldable plastic film is wrapped, of which one (inner) band -four crossing a common plane and one behind the other located side surfaces of the package and the second (outer) banderole the two remaining side surfaces of the package as well as two cover the sides of the package that is already covered by the inner covering band and which bands the inner one mainly corresponds to the width of the package to be enveloped, while the outer band “covers itself with its edge parts , extends to outside the package, characterized in that these edge parts (14) are bent inwards and are welded to the surfaces of the inner film band (8) located under these edge parts. 2. Package according to claim 1, the lowermost layer (1)., Packaging items at a considerable distance from the side edges of the this located layer (2) ends so that at least two elongated cavities (6) with in front of cracks (9, 10) for receiving the legs (7) a lifting fork is formed, the lower part of the longitudinal edge parts (14) of the 5? -olienbahderole (13) extending into these cavities extends and covers the mentioned projections, where they are welded to the inner foil tape (8), thereby gekennz e i: c "hne t that there are only the three remaining parts of the longitudinal edge part (14) of the outer film band (15) at both ends of the package, which are inwardly and over the end faces of the package are bent and welded to the parts of the inner film band (8) located here. 3. A method for wrapping packages according to claim 1, in which First place the package in a foil band along four surfaces that cross a common plane and are one behind the other are wrapped and then the whole thing in a film band extending at right angles to this film band (8) (13) is enveloped, which is with its longitudinal edge parts (14) extends up to the outer circumference of the package (A), 3098 50/0324 characterized in that the longitudinal edge parts extending in front of the outer circumference of the package (14) of the outer film band (13) bent over both front sides of the package (A) and with the parts of the inner film band (8) are welded. 4. Machine for performing the method according to claim 3, characterized by devices for wrapping a package (A) having a parallelepiped shape in two band hoops forming a right angle with one another a weldable plastic film, an inner and an outer · (8 or 13) »from which the outer film band is attached their longitudinal edge parts (14) extends up to the outer circumference of the package (A), characterized by at least three pairs of pivotably mounted and previously known elongated welding jaws (20, 21 and 22, 23 as well as 24 and 25), which the above Long edge parts (14) of the outer film band (13) inwards over the nearby surfaces of the inner band (8) bend them and weld them to them. - · 5. Machine according to claim 4, characterized in that that the bearing axles (26, 27, 28) of the pairs of welding jaws (20 - 25) can be offset and adjusted in relation to one another, 309850/0324 Blank page