WO2016207813A1

WO2016207813A1 - Method and apparatus for plaiting paper

Info

Publication number: WO2016207813A1
Application number: PCT/IB2016/053711
Authority: WO
Inventors: Johannes HOLUBEC; Volker Stein; Roman Krause; Thomas Heinrich; Andreas Hauser
Original assignee: Stora Enso Oyj
Current assignee: Stora Enso Oyj
Priority date: 2015-06-26
Filing date: 2016-06-22
Publication date: 2016-12-29
Anticipated expiration: 2017-12-26

Abstract

The Invention relates to a method for plaiting paper from paper material reserved in at least one paper roll. Said at least one paper roll has two opposite flat sides. The at least one paper roll is e.g. received on its first flat side. A hose paper for plaiting is taken out through this first or the second flat side and introduced into a plaiting mechanism. Said hose paper is built up when the paper material is taken from the inner diameter of said at least one paper roll throughout its flat side with or without rotating of said paper roll.

Description

Method and apparatus for plaiting paper

This invention relates broadly to a method and an apparatus for forming paper to a paper plait, and more particularly to a unitary apparatus into which at least two rolls of paper may be introduced and from which plaited paper may be processed e.g. for packaging purposes, as disclosed in GB 901569.

Paper plaits are known in diverse forms e.g. from DE 70 09 305 Ul, DE 69 14 996 Ul, DE 18 45 078 Ul, DE 1 111 329 Al , DE 182 969 A or DE 196 03 706 CI.

It is still a problem to economically plait paper for

packaging purposes, especially for producing a paper plait as cushioning material. Taking into account transport business it is a further object to develop a small and smart apparatus that may deliver such converted packaging material without great machine surroundings or complicated operations.

This problem is solved via the method and apparatus for plaiting paper according to independent claims.

Advantageous forms of methods and apparatuses according to the invention are subject of dependent claims.

Plated paper ropes, including twisted paper hoses, or plated paper layers are formed gaining volume and structural

properties compared to the base paper material itself so that this plated paper product is of advantage for several

packaging purposes. With mixing different paper materials of several introduced paper rolls such properties may be

influenced by the operator individually, no matter if he just claims optical properties like color or static properties for saving packed goods or both.

According to the invention paper is plaited from paper material reserved in at least one paper roll. Said at least one paper roll has two opposite flat sides. The at least one paper roll is e.g. received on its first flat side. A hose paper for plaiting is taken out through this first or the second flat side and introduced into a plaiting mechanism. Said hose paper is built up when the paper material is taken from the inner diameter of said at least one paper roll throughout its flat side with or without rotating of said paper roll.

The hose is generated automatically due to the fact that the paper rolls are preferably wounded without spools. So paper web may be unwinded from the inner circle of the reserve paper roll, no matter if the reserve paper roll is lying on its round wall or standing on its first flat side. When reserve paper rolls are presented above a plaiting mechanism, it is a possible arrangement of the invention to receive reserve paper rolls on their first flat sides on plates with center holes the paper hoses leaving the inner circle through this first flat sides and through the receiving plates downwards in direction of the plaiting mechanism.

According to a preferred embodiment more than one paper roll, especially three paper rolls, are received generally

independent from each other on their first flat sides whereby the paper material for plaiting is taken as hoses from the inner diameters of said paper rolls throughout their second flat sides. I such case of more than one paper roll it has been of advantage to receive at least two reserve paper rolls in opposite orientations concerning their windings. When a first reserve paper roll was e.g. lying on supporting tires with an inner end raising up in the inner diameter of said roll in front then the second reserve paper roll was positioned axially aligned to said first roll but with its inner paper end raising up in backside of its inner diameter. A first hose paper was taken out from the first reserve paper roll on the second reserve paper roll's flat side and a second hose paper was taken out from the second roll on second roll's flat side being presented toward the first roll. These two hose papers were joined and they mixed up because of their opposite orientation .

According to a further preferred embodiment at least one plaiting mechanism is positioned on the first flat side's side such that said at least one paper roll is rotated around its axis and / or on the second flat side's side such that said at least one hose paper is rotated at least in a section around its longitudinal axis progression.

With one or two plaiting mechanisms it is possible to form a wide range of plated paper products economically, even

complicated plated paper ropes.

According to another preferred embodiment at least one paper roll is received with its first flat side on reserve plates adjusting roll axis with angle (s), in case of more than one roll especially such that all rolls with their axis are oriented with their second flat sides jacked through in their centers by said hose paper axis in direction of a common guiding means . Production velocity may be higher with such angling said reserve paper rolls.

According to another preferred embodiment said reserve plates are rotatable, especially being independently driven. Hose build up may be accelerated and height of a construction for producing plaited paper ropes according to the invention be reduced .

According to another preferred embodiment said paper rolls are received in positions being movable independently from each other, especially resulting in a braiding moving for producing a plated paper layer or a threefold fourfold or multiple times closed plait as plaited paper rope.

According to another preferred embodiment said plating

mechanism integrating two movements of said paper hose(s) changing at least one property so that plaited paper rope with new safe liaisons is derived rotating of hose (s) /rope and forwarding hoses ( s ) /rope .

Such success was gained when surprisingly the produced plaited paper rope itself did not rotate anymore after some distance following the plaiting mechanism. And this plaited paper rope did not lose its form anymore. So the mechanical energy invested during plaiting was stored in the product and no feared deplaiting followed.

According to another preferred embodiment said plating

mechanism rotating around the longitudinal paper direction carries at least two opposite rotating driving rolls, both of them rotating around lateral axis, favorably around two parallel lateral axis, which driving rolls are forwarding the hose(s) / plaited paper rope between them, forming a wide low- compressing nip. In favorable forms this rotatable nip is the only drive forwarding paper material in the whole plaiting process .

According to another preferred embodiment cutting and/or perforating means are used to close rope sections and / or at least partly divide rope sections from each other without completely cutting of, and prepare for use, especially use in packaging purposes.

In further advantageous embodiments with cutting and/or perforating means these means got their position in an inner arrangement area to hinder working accidents. A perforating and pressing was e.g. integrated shortly before said plaiting mechanism. Dividing into cushions was one effect. But the pressing section before and after the perforating line made a locking effect within perforated paper rope, which did not self-delock later.

A preferred embodiment of above mentioned plating mechanism integrates exactly two movements of paper hose(s) therewith changing at least one property of such so that a plaited paper rope with new safe liaisons is derived with means for rotating of hose (s) /rope and forwarding hoses ( s ) /rope .

The invention further covers paper ropes or paper layers plaited according to one of the plaiting methods described above. The invention further covers the use of such plaited paper for packaging purposes. Independent of this packaging use the above described idea to use the inner end of paper rolls for forming a plaited paper layer or a plaited paper rope from self-upbuilding hoses is a claim of this

application .

Crimpings or other deformations according to the invention may also be understood also as a preparing step before or during a certain plait forming procedure, especially with compressing in sections. Paper ropes produced with above described

embodiments have been steerable. Successful sequences of such plaiting methods have been compressing, guiding, rotating, and/or further compressing.

The novel features of the invention will be best understood from the following description when taken together with the accompanying drawings in which one embodiment of an apparatus and several embodiments of plated paper products for packaging purposes are disclosed, and in which the separate parts are designated by suitable reference characters in each of the views, and in which:

Fig. 1 is a schematical drawing of a three times closed plait formed by means of a method / apparatus according to the invention,

Fig. 2 is a schematical drawing of a four times closed plait formed by means of a method / apparatus according to the invention,

Fig. 3 is a schematical drawing of a two times closed plait with two inner core paper hoses formed by means of a method / apparatus according to the invention,

Fig. 4 is a schematical drawing of a multiple times closed plait formed by means of a method / apparatus according to the invention,

Fig. 5 is a schematical drawing of a plaited paper layer formed by means of a method / apparatus according to the invention, and Fig. 6 is a schematical perspective view on an apparatus according to a demonstrative embodiment of the invention.

Figures 1 to 4 show four embodiments of plaited paper ropes 3, 4, 4', 5 that are produced using a method for plaiting paper according to the invention. Figure 5 shows a plaited paper layer 2 as a fifth product embodiment. These plaited paper products 2, 3, 4, 4', 5 consist of paper hoses 10 - 19 that are pulled out from an inner dimeter 27, 28, 29 of a

corresponding reserve paper roll 21, 22, 23 positioned with their first flat sides 21.1 on a reserve base plain 20. An overview of a machine arrangement for operating such inventive method according to a favorable arrangement embodiment is shown in figure 6.

Said method for plaiting paper employs at least one paper roll 21, 22, 23. Paper material is reserved in three such paper rolls according to the embodiment given with figure 6. Each of these paper rolls 21, 22, 23 has two opposite flat sides 21.1, 21.2. The aim of this method is to produce a plaited paper rope 6 and / or a plaited paper layer as

examples are given with figures 1 to 5.

To achieve that, the invention teaches to receive said paper rolls 21, 22, 23 on their first flat sides 21.1, 22.1, 23.1. Then hose papers 1 for plaiting are introduced into a plaiting mechanism 30, which hose paper 1 is built up by taking the paper material from the inner diameters 29 of said paper rolls 21, 22, 23 throughout their second flat sides 21.2.

According to the advantageous embodiment of figure 6 the three paper rolls 21, 22, 23 are received independent from each other on their first flat sides 21.1, 22.1, 23.1 whereby the paper material for plaiting is taken as hoses 10, 11, 12 from the inner diameters of said paper rolls throughout their second flat sides 21.2. These three hose papers 1 have same orientation as may be seen by drawn helix on their round surfaces. Each paper roll has its own receiving reserve plate 25. Such reserve plate is according to the shown

embodiment supporting the paper roll rotatable around its axis A. For rotating a drive D is schematically drawn in

Figure 6 adjacent to each reserve plate 25. In an advantageous embodiment reserve plates are all parallel to a horizontal reserve base plane 20. The embodiment of figure 6 shows such reserve base plane 20, too, but the shown reserve plates 25 are themselves not horizontal but positioned is an angle a to said reserve base plane 20 for orienting all of the paper roll axis A toward a guiding means 31 being the entrance of said plaiting mechanism 30.

Following the idea of the invention, generally - but not shown in any figure - at least one plaiting mechanism may be

positioned on the first flat side's 21.1 side such that said at least one paper roll 21, 22, 23 is e.g. rotated around its axis A and said rolls 21, 22, 23 change their positions on the reserve base plain 20.

According to figure 6 said plating mechanism 30 is positioned on the second flat side's 21.2 side such that said three hose papers 1 are rotated by this plaiting mechanism 30 in a section B even when none of the paper rolls 21, 22, 23 is driven or self-rotating. In case of the shown plaiting

mechanism 30 the three hoses are nipped between driving rolls 34 rotating around horizontal nip roll axis LI, L2 and rotated by this plaiting mechanism 30 around the paper hoses' 1 common longitudinal paper rope 6 axis progression P. The method for plaiting paper according to figure 6 shows three equal angles oil, 2, 3. But advantageous embodiments not shown in Figure 6 had at least two paper rolls received with their first flat sides on reserve plates adjusting roll axis with different angles a, even different paper grades 18, 19 to form such rope 4' designs as given by figure 3.

Said driving rolls 34 are forwarding the hoses 1 together while they change to continue common movement as one plaited paper rope 6 between them. This plaiting mechanism is

therewith the only drive forwarding paper material in the whole inventive plaiting process according to the shown embodiment. The shown method for plaiting paper according to figure 6 is finalized with a cutting and perforating means 33 closing rope sections and cutting them into packaging material sections or just perforating to just dispose plaited paper rope 6 to separate by hand later section by section from each other. However this finishing means is prepare for use, especially use in packaging purposes.

As mentioned before different paper qualities are mixed in plaited paper ropes 6 or layers 2 employing papers with special specific paper weight, sort of paper, thickness, number of e.g. functional layers of base papers and / or color. The special marking of different surfaces or papers shown in figure 3 of a fourfold paper plait 4' with two parallel inner hoses highlight this possibility of using different grades for different jobs to be fulfilled by such grades in their rope function. It has been advantageous to use coated paper for the two outer paper hoses 19.1, 19.2 while hiding within them inner paper hoses 18.1, 18.2 made from uncoated 100% recovered paper.

Threefold paper plait 3 according to figure 1 and fourfold paper plait 4 according to figure 2 are plaitet from equal paper grade paper hoses 10, 11, 12, 13, 14, 15, 16.

List with reference characters:

1 hose paper

2 plaited paper layer

3 threefold paper plait

4, 4' fourfold paper plait

5 multiple times closed plait

6 plaited paper rope

10 first paper hose

11 second paper hose

12 third paper hose

13 first paper hose

14 second paper hose

15 third paper hose

16 forth paper hose

16. f further paper hose

18.1 first inner paper hose

18.2 second inner paper hose

19.1 first outer paper hose

19.2 second outer paper hose

20 reserve base plain

21 first reserve paper roll

21.1 first flat side

21.2 second flat side

22 second reserve paper roll

23 third reserve paper roll

24 first adjustable reserve plate

25 second adjustable reserve plate

26 third adjustable reserve plate

27 first inner diameter

28 second inner diameter

29 third inner diameter plaiting mechanism

guiding means

output connection

cutting and/or perforating driving rolls angle

axis

section

drive

axis

curve progression

Claims

Claims :

1. A method for plaiting paper from paper material reserved in at least one paper roll (21, 22, 23), said at least one paper roll (21, 22, 23) having two opposite flat sides (21.1, 21.2), this method producing a plaited paper rope (6) or plaited paper layer (2),

c h a r a c t e r i z e d in that

1.1 said at least one paper roll (21, 22, 23) is received

1.1.1 on its first flat side (21.1) or

1.1.2 on at least a round wall section between both flat sides

(21.1, 21.2) with both flat sides (21.1, 21.2) presented open and

1.2 hose paper (1) for plaiting is introduced into a plaiting mechanism (30), which hose paper (1) is built up when the paper material is taken from the inner diameter (29) of said paper roll (21, 22, 23) throughout its second flat side (21.2) .

2. Method for plaiting paper according to claim 1,

characterized in that more than one paper roll (21), especially three paper rolls (21, 22, 23), are received generally independent from each other on their first flat sides (21.1, 22.1, 23.1) whereby the paper material for plaiting is taken as hoses (10, 11, 12) from the inner diameters of said paper rolls throughout their second flat sides (21.2) .

3. Method for plaiting paper, especially according to one of the claims 1 or 2, characterized in that at least one plaiting mechanism (30) is positioned

3.1 on the first flat side's (21.1) side such that said at least one paper roll (21, 22, 23) is rotated around its axis (A) and / or

3.2 on the second flat side's (21.2) side such that said at least one hose paper (1) is rotated at least in a section (B) around its longitudinal axis progression (P) .

4. Method for plaiting paper according to one of the

preceding claims, characterized in that said at least one paper roll (21, 22, 23) is received with its first flat side (21.1, 22.1, 23.1) on reserve plates (24, 25, 26) adjusting roll axis with angle (s) (oil, 2, 3), in case of more than one roll (21, 22, 23) especially such that all rolls with their axis (A) are oriented with their second flat sides (21.2) jacked through in their centers by said hose paper (1) axis (A) in direction of a common guiding means (31) .

5. Method for plaiting paper according to claim 4,

characterized by said reserve plates (24, 25, 26) are rotatable, especially being independently driven (D) .

6. Method for plaiting paper according to one of the

preceding claims, especially according to feature 3.1, characterized in that said paper rolls (21, 22, 23) are received in positions being movable independently from each other, especially resulting in a braiding moving for producing

6.1 a plated paper layer (2) or

6.2 a threefold (3) fourfold ( 4 , 4') or multiple times closed plait (5) as plaited paper rope (6) .

7. Method for plaiting paper according to at least claim 3, characterized by said plating mechanism (30) integrating two movements of said paper hose(s) (1) changing at least one property so that plaited paper rope (6) with new safe liaisons is derived:

7.1 rotating of hose (s) /rope and

7.2 forwarding hoses ( s ) /rope .

8. Method for plaiting paper according to claim 7,

characterized in that said plating mechanism (30) rotating around the longitudinal paper direction carries at least two opposite rotating driving rolls (34), both of them rotating around lateral axis (LI, L2), favorably around two parallel lateral axis, which driving rolls (34) are forwarding the hose(s) (1) / plaited paper rope (6) between them, especially being the only drive

forwarding paper material in the whole process.

9. Method for plaiting paper according to one of the

preceding claims, characterized in that cutting and/or perforating means (33) are used, especially within said plaiting mechanism in an inner machine part, to

9.1 close rope sections and / or

9.2 at least partly divide rope sections from each other

without completely cutting of, and prepare for use, especially use in packaging purposes.

10. Plating mechanism integrating two movements of paper

hose(s) (1) changing at least one property of such so that a plaited paper rope (6) with new safe liaisons is derived with means for

10.1 rotating of hose (s) /rope and

10.2 forwarding hoses ( s ) /rope . Machine arrangement for operating a method according to one of the claims 1 to 9, especially with a plating mechanism according to claim 10.

Paper rope (6) or paper layer (2) plaited according to one of the methods of claims 1 to 9.

Use of plaited paper (2, 6) according to one of the methods of claims 1 to 9 for packaging purposes.

Use of an inner end of paper rolls (21, 22, 23) for forming a plaited paper layer (2) or plaited paper rope (6) .