JPH02109810A - Rectangular pack and manufacture thereof - Google Patents

Abstract

PURPOSE: To reduce the number of working processes to rationalize the manufacturing method by simultaneously folding at least two sheets of wrapping materials several times together. CONSTITUTION: A cigarette block 1 is transferred into a storing pocket 14 in a working station A, and an aluminium foil cut piece 24 is cut. In a working station C, a packing process and a folding process are performed. In a working station D, an end face flap 66 of a wide base side of an aluminium foil cut piece 24 is folded. In a working station E, the wrapping materials 8, 24 sent together form a starting position for the next packing process. In a working station F, an end face flap 67 of a narrow head side and an end face flap 68 of a narrow base side are folded. Then in a working station G, one side of an outer label cut piece 8 is folded in the shape of hose, and a first wide end face flap 69 is folded. In a working station H, the final hose-shaped folding is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a foldable packaging material comprising at least two packaging materials for accommodating pack contents, and comprising overlapping end flaps into which the bottom packaging material is folded. The present invention relates to rectangular packs for packaged material units consisting of rod-shaped articles in the tobacco processing industry.

The present invention involves wrapping a packaging material in a hose shape around a unit of packaged substance formed from a rod-shaped article of the tobacco processing industry.
The present invention relates to a method for making rectangular packs in which the bottom of the pack is closed by folding in end flaps of the packaging material.

Packaging material according to the invention refers to foldable packaging material in the form of labels made of metal or aluminum foil (staniol) or of paper, cardboard or synthetic material.

Packed substance units in the form of cigarettes are understood according to the invention to mean cigarette blocks consisting of brain cigarettes or filter cigarettes.

The underlying problem of the invention is to make a pack of the type described at the outset, and a method for its production, more streamlined by reducing the number of working steps required therefor.

A feature of the pack according to the invention is that at least one common end flap of packaging material folded into one another forms part of the bottom packaging.

An advantageous feature of the invention is that the packaging materials folded into each other form a wide bottom end flap.

In accordance with another embodiment of the invention, this common bottom end flap is overlaid with a wide bottom end flap formed from the outer wrapper.

In particular, the end flap formed together by the packaging material consists of an inner and an outer wrapper folded into one another, for example in the form of an aluminum wrapper and a paper wrapper.

A feature of the method described at the outset is that multiple folds for at least two packaging materials are carried out together.

According to the invention, it is advantageous to fold the packaging material together in at least one of the multiple hose-like folds.

The advantages of the method according to the invention are particularly realized in soft packs in which the first packaging material forms the inner packaging and the second packaging material forms the outer packaging.

The best way to carry out the method described above is to supply the packaging material units for the outer covering with the packaging material units to be packaged before folding the packaging material for the inner packaging into a complete hose.

In this manner, it is advantageous to carry out the final folding of the inner packaging into the hose-like body together with the folding of the outer packaging.

In order to make the process even more efficient, during the folding process for the outer package, which is carried out together with the final folding of the inner package, the package cut pieces of the outer package are formed into a U-shape to form a hose-like body. We suggest folding it in advance.

Another advantageous rationalization approach is to carry out three of the four bottom folds for the inner and outer wraps together.

In this case, it is advantageous to fold together two bottom narrow end flaps and one bottom wide end flap of the inner packaging and the outer packaging.

The invention will now be described in detail with reference to the embodiments illustrated in the accompanying drawings.

The packaging machine shown schematically in FIGS. 1 to 3 is for packaging units of material to be packaged in the form of cigarette blocks I, which cigarette blocks have a tray conveyor 2 - their individual receiving compartments 3 are arranged in a known manner. The packaging machine is fed by filling the magazine 4 with cigarette blocks 1 in the same manner.

To create a rectangular soft bag 6, the cigarette block 1 is wrapped in two wrapping materials consisting of an aluminum foil 7 and a label 8. In this case, the aluminum foil 7 forms the inner packaging and the paper label 8 forms the outer packaging. The hose-folding, head-folding and bottom-folding necessary to produce this soft pack 6, i.e. to form its inner and outer packaging, are carried out by the elements of the packaging machine described below.

First backfeed means 9 configured as a three-armed rotor
The arms 11 to 13 (not shown), which are driven individually and continuously, have receiving sockets 14 to 16 (14 to 16) which are rearwardly open on the end side for the cigarette block 1 and which are open on the outside in the radial direction, as well as cigarettes. with retention means in the form of longitudinal receiving holes 17 to 19 for the aluminum foil 7, oriented parallel to the wide side of the block 1 and radially and normal to the feed plane of the arm. ing. @1 length accommodation holes 17-19 correspond to the arms 11
In the stationary phase of .about.13, the feed slot 21, illustrated in the form of a pair of rolls 22 for the aluminum foil 7, is aligned in plane. The aluminum foil is pushed radially into the respective elongate receiving hole, and then the cutting device 23 cuts the inner wrapper cut pieces in the form of aluminum foil cut pieces from the aluminum foil.

Movement between the two working stations designated A and B with respect to the feeding direction (in the direction of arrow 26) of the packaging substance feeding means 9, between which the arms 11-13 are accelerated from a stationary phase. Extending are folding means 27 which are fixed to the section and the annular section. Between the working station B and the working station C - between these working stations the arms 11-, 13 are moved continuously - the arm 11 is moved over the following movement section in the direction of rotation (in the direction of the arrow 26) and the ring path section. Another endless packaged material transport means 29 with ~13 transport channels and receiving pockets 28 is wound around. The path of movement of the packaging material transport means 29 is indicated by an arrow 31, and the surface of the receiving pocket 28 of this packaging material transport means carries the packaging material during joint and successive phases of movement between work station B and work station C. The respective storage pockets 14 to 16 of the substance delivery means 9
It is consistent with the aspect of

The packaged material transport means 29 is designed, for example, in the manner of a chain conveyor 30 carrying receiving pockets 28, which winds around the curved and bordering annular path section of the packaged material transport means. A motion path adapted to
37 20290.1 and P 3723001
．． It is formed by a suitable chain deflection guide 35 in the manner described in No. 8.

The receiving pocket 28 of the material delivery means 29 to be packaged has a folding guide 32 which is fixed on the narrow side and can be slid radially into and out of the receiving pocket 28 . It is equipped with an ejector 33 that comes out. Accommodation pocket 1-14 of packaged substance sending means 9
16 are 0 work stations C and A equipped with radially slidable ejectors 34 similar to the ejectors described above.
Between the arms 11 to 13 of the means 9 for transporting the substance to be packaged are indicated by the arrow 2.
means 2 for transporting the packaged substance, which is retarded in the direction 6 and can be driven to a stationary state, while having a receiving pocket 28;
9 rotates at the same constant and continuous speed. This creates a relative movement downstream of the work station C on the ring path section between the material transport means 9 and the material transport means 29 . Further, on this annular path section, the feeding path 31 of the packing substance feeding means 29 includes the packing substance feeding means 2.
A folding rotor 34, which rotates synchronously with the nine storage pockets 28, is provided with a number of pivotable folding elements 36. These folding elements 36 extend between the zero working station C working at the working station D and the next working station 8 along the feeding path 31 of the material feeding means 29 and fixed folding means 37. The feed path 31 of the packaging substance feed means 29 is exactly the same between work station E and the next work station run F as between work station B and zero.
The feed path 38 of the folding revolver 39, which is likewise rotatable continuously and synchronously with the material feed means 29, is wound around. The folding revolver 39 is also provided with a storage pocket 41, and an ejector 42 of this storage pocket is equipped with a work station F.
On its front and rear narrow sides there is assigned a slidable cover member 43 which operates at the work station G, as well as a pivotable folding member 44 which operates at the work station G.

In the area of the work station H, a further folding means 46 is assigned, which is fixed to the folding revolver 39.

According to FIG. 3, the folding means 4 are laterally fixed to the folding revolver 39 in the area of the working station I.
7 belong to it. In addition to the belt pair 48 for supplying the paper label strips 8, this folding revolver 39 is provided with two storage pockets 41 for the time being by means of this belt pair.
A turning roll device 49 is provided for the purpose of positioning the paper label cut piece 8 that is brought between.

This turning roll device folds the paper label strips 8 and removes them from the revolver 39, passes through the extension of the feed path, and folds the paper label strips so that they cover the receiving pocket in the center relative to the feed path of the revolver. Then send it back to this folding revolver.

In the downstream direction with respect to the feed direction (arrow 38), the folding revolver 39 cooperates in a manner similar to the packaging material transport means 29 with the next endless packaging material transport means 50. The path of movement of this means for transporting the material to be packaged, which likewise follows the annular path section of the folding revolver 39, is again indicated by an arrow 38.

This packaged substance feeding means 50 also includes a storage pocket 51 equipped with an ejector 52, a folding guide portion 53 on the front narrow side, and a folding member 56 which can rotate and pivot in synchronization with the packaged substance feeding unit 50. Folding rotor 5 with
It is equipped with 4. The folding guide 53 works at the work station J and the folding member 56 works at the work station.In the area of the zero work station L, a folding means 57 is attached which is fixed laterally to the material transport means 50. On the side facing the folding revolver 39, the packaging material transport means 50 cooperates with a tray conveyor 58 which is driven in discontinuous rotation in the same way as the three-armed packaging material transport means 9 in the manner described above. This tray conveyor picks up the soft pack 6 with inner and outer packaging radially on a common feed section and feeds it in the direction of the arrow 61 in the stop phase of the tray conveyor 58. A dam conveyor 62 collects the soft bags and transfers them to a cellophane pasting machine (not shown) for wrapping them in transparent foil.

The method steps will be explained below with reference to FIGS. 2 to 4.

From FIG. 2, arrow 6 in the area to the work station
A tray conveyor 2, which rotates stepwise in the direction 3, accommodates an arm 11 in its receiving compartment 3 in which the cigarette blocks 1 are in a stationary phase in the direction of the longitudinal axis or in a direction perpendicular to the plane of the drawing. It can be seen that it is stopped so that the surface is aligned with the pocket 14. At this position, the surfaces of the vertically elongated housing hole 17 and the supply sling 21 of the roll pair 22 are similarly aligned. Along with this, the aluminum foil 7 is pushed into the vertically long accommodation hole 17 without any problem, and the cigarette block 1
is from storage chamber 3 to storage pocket 7 in the longitudinal axis direction of the cigarette.
)14. As a result, the aluminum foil 7 - from which the cutting device 23 cuts the aluminum foil pieces 24 forming the inner packaging part - and the cigarette block 1 occupy the positions shown in FIG. 4a at a distance from each other. Subsequently, the arm 11 is accelerated from the working station A to a continuous speed in the direction of the arrow 26 of the material feed means 29, and the folding means 27, which are stationary in this case, are rotated so that they protrude from the longitudinal receiving hole 17. The free end of the aluminum foil cut piece 24 is brought into contact with the narrow side of the cigarette block 1. This situation is illustrated in FIG. 2 with the arm 12 just passing through the working station B to which the receiving pocket 15 and the elongated receiving hole 18 belong, and the method steps that can be seen from FIG. 4b. The arm 12 and the packaged substance feed means 29 are now continuously moving together in the direction of the arrow 31 with the same continuous circumferential speed until the receiving pockets 28 and 15 are moved together.
is closed at the zero working station C, with the surfaces of the cigarettes being aligned in the radial direction, in which case the ejector 34 transfers the cigarette block 1 onto this common feed section into the receiving pocket 28 of the packaging material feed means 29. During this transition, which is shown in FIG. 2 beside the arm 13 with the receiving pocket 16 and the longitudinal receiving hole 19,
The packaging and folding steps shown in FIG. 4c are carried out. By moving into the receiving pocket 28, one of its boundary walls brings the projecting free end of the aluminum foil strip 24 into contact with the cigarette block 1 in the first working stage for forming the hose. Similarly, when the folding guide part 32 passes along the storage pocket 28 while the cigarette block 1 is being transferred, the narrow end flap 64 on the head side is folded in, and the circumferential speed of the arm 13 increases the amount of material to be packaged. is reduced relative to the speed of means 29.

From this state in which the arm 13 is present according to FIG. 2 with just the associated receiving pocket 16 and longitudinal receiving hole 19, the movement of the arm is further retarded, while the packaged material feed means 29 continue at its continuous speed. Further, the movement continues in the direction of arrow 31.

As a result, the preceding storage pocket 28 of the packaging material delivery means 29 completely pulls out the opposite free end of the aluminum foil cut piece 24 from the longitudinal storage hole 19, and in this case, the fixed folding means passing through it completely pulls out the opposite free end of the aluminum foil cut piece 24. 37 brings the end portion of the aluminum foil cut piece 24 into contact with the narrow side of the cigarette block 1. One of the folding means 36, rotating together in the direction of the arrow 31, folds in the wide bottom end flap 66 of the aluminum foil cut piece 24 at the working station D, which is clearly visible in FIG. 4d.

The cigarette block 1 is conveyed to the working station with the still protruding free end of the still open hose-like body of the aluminum foil strip 24 forming the inner packaging. A second packaging material in the form of an outer wrap formed by paper label cut pieces 8 is supplied to this work station at the same time with a folding revolver 39 which is moved synchronously in the direction of arrow 38. As shown in FIG. 3, the cut label pieces 8 placed between two storage pockets 41 on the jacket surface of a folding revolver 39 which is rotated in synchronization with the packaging material feeding means 29 by means of a pair of belts 48 are rotated by a turning roller device 49. and placed back on the jacket surface of the folding revolver so as to cover the radial receiving opening of the receiving pocket 41. The packaging materials 8 and 24 fed together in the work station E form the starting position for the next packaging process in FIG. 4e. In a common feed section following the folding revolver 39 and the working stage gin E of the packaging material feed means 29, the cigarette block 1 is moved radially with the inner aluminum foil cut piece 24 by means of the ejector 33 assigned to the receiving pocket 28. Then, the folding revolver 39 is transferred into the storage pocket 41. At this time, the paper label cut piece 8 is replaced with the aluminum foil cut piece 24.
with its still open end rests against the wide side of the cigarette block 1 in a U-shape. That is, in this case, the hose-like folding of the aluminum foil cut piece 24 is completed. When the cigarette block 1 is pushed into the storage pocket 41, the slidable packaging 43, which is present on the front narrow side and the invisible rear narrow side of the storage pocket 41 at the work station F, is placed on one side. In this case, the second narrow head end flap 67 of the aluminum foil strip 24 and the narrow bottom end flap 68 common to the inner aluminum foil strip 24 and the outer paper label strip 8 on the other hand are folded. Folded. This is clearly seen from Figure 4f and Figure 4r'', which views this figure from a different side.

Thereafter, in the work station G, the pivotable folding means 44 simultaneously folds in the hose-like shape of one side of the outer paper label strip 8 and folds in the first wide end flap 69. This working process is clear from Figure 4g. When the cigarette block l is further fed in the direction of arrow 38,
The receiving pocket 41 passes under the folding means 46 which is fixed in the area of the working station H, whereby the last hose-shaped folding of the outer label strip 8 is completed according to FIG. 4h.

When the cigarette block 1 is fed further, it passes through the lateral fixed folding means 47 according to FIG. The folding means then folds down the second wider end flap 71 on the head side in accordance with FIG. 41 at work station I. Along with this, the head of the aluminum foil cut piece 24 closes.

Folding revolver 39 and endless packaging substance feeding means 50
The storage pocket 1- is located in a common feeding section following the above-mentioned feeding section, where the surface of the storage pocket 51 of the material feeding means 50 and the surface of the storage pocket 41 of the folding revolver 39 are located in the same line. 41 ejector 42 accommodates a partially wrapped cigarette block pocket 51
In this case, at work station J, the second common bottom end flap 72 for the inner aluminum foil cutout 24 and the outer paper label cutout 8 is folded in by the side folding guide 53 according to FIG. 4j. be caught.

Pivotable folding means 56 at work station K
First common wide bottom end flange 7 for aluminum foil cut piece 24 and Gio label cut piece 8
3 is folded into the fourth part as shown in the figure. Finally, the wide bottom end flap 7 of the Gio label cut piece 8 is folded by the folding means 57 fixed at the work station L.
4 is folded in, and the back bottom is also closed as shown in FIG.

FIG. 5 once again shows the special bottom end flap formation of the softback 6 which is carried out by the folding method according to the invention. It can be seen from this figure that the single wide bottom end flap 73 consists of an inner and an outer wrap consisting of an aluminum foil cut piece 24 and a paper label cut piece 8 which are folded into each other to form a chevron shape.

The soft pack 6 finished in this way is subsequently placed in the receiving pocket 76 of the tray conveyor 58 on the conveying path common to the material to be packaged transport means 50 and the tray conveyor 58 while it is further conveyed in the direction of the arrow 38. It is transferred and subsequently picked up by the stamp feeder 59 during the stationary phase of the tray conveyor 58.

[Brief explanation of the drawing]

Figure 1 is a basic schematic diagram of a packaging machine for producing soft packs; Figures 2 and 3 are enlarged partial views of the packaging machine with work stations for performing individual packaging operations; Figures 4a to 4I;
The figure is a diagram of the pack after the folding operation and the packaging operation, and FIG. 5 is a perspective view of the pack together with the bottom folding operation according to the present invention. The symbols in the diagram are: 1...Cigarette block, 2...Tray chain conveyor, storage compartment, 4...Magazine, 6...Soft pack, 7...Aluminum foil, 8...Gi label cutting Piece, 9.29.50... Packaged substance sending means, 11.12.13... Arm, 14.15.16
．． 24.28.51.58...Accommodation pocket, I7.
18.19... Vertical storage hole, 21... Supply slit, 23... Cutting device, 24... Aluminum foil cut pieces, 27.37.46.47... Folding means,
34.54... Folding rotor, 39... Folding revolver 42.52... Ejector, 43... U-ump, 59... Stamp feeder, 64.66.67.
68.69.71.72.73.74...End flap, dammed conveyor

Claims (13)

[Claims] 1. A rod-shaped material in the tobacco processing industry as a foldable packaging material, consisting of at least two packaging materials for containing the contents of the pack, and formed by overlapping end flaps into which the bottom packaging material is folded. In a rectangular pack for packed substance units consisting of articles, at least one common end flap (73) of packaging material (8, 24) folded into one another forms part of the bottom packaging. The above-mentioned rectangular pack characterized by the following. 2. 2. Rectangular pack according to claim 1, characterized in that the wrapping material (8, 24) folded into one another forms a wide bottom end flap (73). 3. Outer packaging (8) on common bottom end flap (73)
3. A rectangular pack according to claim 1 or 2, characterized in that the wide bottom end flaps (74) formed from are folded and overlapped. 4. The rectangular rectangular rectangular rectangular rectangular rectangular rectangular rectangular rectangular rectangular rectangular rectangular rectangular rectangular rectangular rectangular box according to claim 1, wherein the end flaps (73) formed together by the wrapping material (8, 24) are provided with an inner wrapper and an outer wrapper which are folded into each other. pack. 5. Creating a rectangular pack by wrapping the packaging material in a hose shape around a unit of packaged substance formed from a rod-shaped article of the tobacco processing industry, the bottom of the pack being closed by folding in the end flaps of the packaging material. In the method for
A method for making a rectangular pack as described above, characterized in that multiple foldings for at least two pieces of packaging material are carried out together. 6. 6. The method of claim 5, wherein at least one of the multiple hose folds involves folding the packaging material together. 7. 7. A method as claimed in claim 5, characterized in that multiple bottom folds for the packaging material are performed together. 8. 8. The method as claimed in claim 5, wherein the first packaging material is formed as an inner wrap and the second packaging material is formed as an outer wrap. 9. 9. The method according to claim 5, wherein the material unit to be packaged is supplied with packaging strips for the outer covering before the packaging strips for the inner packaging are folded into the complete hose shape. Method. 10. 10. The method as claimed in claim 5, wherein the final folding of the inner packaging into the hose-like body is carried out together with the folding of the outer packaging. 11. 11. According to any of claims 5 to 10, during the folding step for the outer packaging, which is carried out together with the final folding of the inner packaging, the packaging strips of the outer packaging are prefolded in a U-shape to form a hose-like body. The method described in one of the following. 12. 3 out of 4 bottom folds for inner and outer packaging
12. The method according to claim 5, wherein the folding of the folds is carried out together. 13. Fold together the two narrow end flaps on the bottom and one wide end flap on the bottom of the inner and outer packaging.
A method according to any one of claims 5 to 12.