PRODUCTION OF PAPER STICKS

Abstract

The invention relates to paper processing, namely the processing of a paper web or a paper web section in order to form a paper stick. The processing is carried out in multiple process stages, including storing the paper web, stretching the paper web, controlling/regulating the guide for the lateral edge, conveying the paper web, folding the paper web, rolling, adding an additive, cutting, removing the remaining paper web, separating the paper sticks, drying the sticks, and/or post-treating the sticks.

Claims

1. A paper supply receiving device for receiving and/or providing a paper supply, comprising a paper roll, for a paper processing device for the processing of a paper web section to form multiple paper sticks, wherein the paper supply is able to be actuated by means of a pneumatic clamping device, able to be arranged on a frame, wherein for exchanging a used-up paper supply for a new paper supply (2), fastening- and exchanging means, are dispensable and not provided as equipment, and wherein the paper roll (2) has in particular a net weight of between approximately 300 kg and approximately 700 kg.

2. A web tensioning control device for the tensioning of a paper web originating from a paper supply, for a paper processing device for the processing of a paper web section to form multiple paper sticks, wherein the web width of the paper supply is more than approximately 350 mm and less than approximately 700 mm.

3. A lateral edge controlling device for the controlled moving of a paper web originating from a paper supply, in particular for a paper processing device for the processing of a paper web section to form multiple paper sticks, wherein the paper web has a first and a second lateral edge, wherein the web width of the paper supply is approximately more than approximately 350 mm and less than approximately 700 mm.

4. A high speed paper web conveying arrangement for the conveying of a paper web originating from a paper supply, for a paper processing device for the processing of a paper web section to form multiple paper sticks, wherein per minute more than approximately 3,000 paper sticks are able to be produced, wherein a transverse cutting of the paper web of the paper supply takes place by means of a perforating blade device, which perforates the paper web substantially perpendicularly to the paper web conveying direction, and which cuts the perforated paper web to length by means of a crosscutting roller, wherein the crosscutting roller rotates with a crosscutting roller speed, and wherein the crosscutting roller has a profiled surface.

5. A paper web conveying- and folding device for the conveying of a paper web section originating from a paper supply, and for the arranging of a surface change, corresponding to a fold, at least of one region of the paper web section, for a paper processing device for the processing of a paper web section to form multiple paper sticks, wherein the paper web conveying- and folding device comprises a first conveying roll and a second conveying roll arranged substantially parallel to the first conveying roll, and a folding roll arranged adjacent to or between the first and second conveying roll, with which a paper web section of the paper web supply is folded in certain places so that the paper web section, which is running almost flat, has a fold protruding from the conveying plane, and wherein the paper web conveying- and folding device comprises at least one conveying roll.

6. The paper web conveying- and folding device according to claim 5, wherein the folding roll is formed as a profile roller and wherein at least one conveying roll is formed as a counter-roller of the folding roll/profile roller, which is at least partially in mechanical contact with the folding roll/profile roller.

7. The paper web conveying- and folding device according to claim 5, wherein at least one conveying roll of the paper web conveying- and folding device, a counter-roller acting on a folding roll formed as a profile roller, has a cross-section changing over the length of the conveying roll with up to approximately 2 mm diameter change over the roll length.

8. The paper web conveying- and folding device according to claim 5, wherein at least one conveying roll of the paper web conveying- and folding device, a counter-roller lying against a folding roll formed as a profile roller, has a coating.

9. A rolling arrangement for the rolling of a paper web section removed from a paper supply, to form an almost cylindrical paper body, for a paper processing device for the processing of a paper web section to form multiple paper sticks, wherein the rolling arrangement comprises a rotatable roller, formed as a drum, able to be arranged on a frame, and a cover, able to be fastened statically, able to be arranged on a frame at a predetermined distance from the roller, so that between roller and cover a rolling space is formed in which a paper web which is cut to length and is acted upon with a fold, is able to be shaped to form a thin, substantially cylindrical paper body to be rolled, and wherein the cover is arranged above the roller.

10. The rolling arrangement according to claim 9, wherein the paper web describes a path upwards against the force of gravity in a path with at least partially radial geometry.

11. The rolling arrangement according to claim 9, wherein the roller has a roller diameter of approximately more than approximately 700 mm and less than approximately 1,500 mm.

12. The rolling arrangement according to claim 9, wherein the cover of the rolling arrangement has a cover geometry which comprises a main radius which is greater by half the width of the rolling space than the roller diameter, and which comprises at least one sector with a sector radius deviating from the main radius, so that the width of the rolling space deviates in the region of the sector from the remaining width of the rolling space, and/or so that the width of the rolling space varies over the circumference of the roller.

13. The rolling arrangement according to claim 9, wherein the predetermined diameter of the substantially cylindrical paper body which is to be formed is formed in a diameter sector of the rolling space which, in relation to the paper web conveying direction, is arranged at the end of the rolling space, and which takes up substantially approximately a quarter of the rolling space.

14. The rolling arrangement according to claim 9, wherein the surface of the roller delimiting the rolling space and/or the surface of the cover delimiting the rolling space comprises at least one coating.

15. An additive adding device for the feeding of an additive in the processing of a paper web section to form multiple paper sticks, for a paper processing device for the processing of a paper web section to form multiple paper sticks, wherein the additive adding device assigns the additive to a component of the paper processing device to a region of a roller of a rolling arrangement.

16. The additive adding device according to claim 15, wherein the applying of the additive in the rolling arrangement to a rotating roller of the rolling arrangement, takes place before a paper web section is processed in the rolling arrangement.

17. The additive adding device according to claim 15, wherein the additive comprises water or is formed from water.

18. The additive adding device according to claim 15, wherein the adding of additive takes place by a rotor application system.

19. A cutting arrangement for cutting a paper body, for a paper processing device for the processing of a paper web section to form multiple paper sticks formed from a paper body, with at least one blade, wherein the at least one blade is able to be positioned and/or movable and/or adjustable with regard to position and/or movement, and/or able to be controlled and/or able to be regulated, and wherein the cutting arrangement forms an assembly which, in relation to the conveying direction of the paper web, is arranged at or behind a rolling arrangement.

20. A disposal device for disposing of paper web residues, formed for instance by one or more cutting arrangements, for paper processing device for the processing of a paper web section to form multiple paper sticks, wherein the disposal device is arranged beneath a frame or machine stand of the paper processing device.

21. A sorting device, which is formed in particular in a multi-stage manner, for the sorting of paper sticks, for a paper processing device for the processing of a paper web section to form multiple paper sticks, wherein at least one trough conveyor is provided, which comprises at least one trough, and which is able to be acted upon at least partially by at least one oscillation, so that paper sticks and/or paper body waste are able to be spatially separated, and/or so that the manufactured paper sticks are able to be handled adjustably with regard to orientation, position with respect to one another, and conveying speed.

22. The sorting device according to claim 21, wherein the geometry of the trough or troughs is able to be adapted to the dimensions and conveying characteristics of the manufactured paper sticks.

23. The sorting device according to claim 21, wherein an oscillating sorting box is provided, in which the aligned manufactured paper sticks are able to be sorted for a subsequent further processing and/or packing.

24. A drying device for the drying of paper sticks moistened by an additive, for a paper processing device for the processing of a paper web section to form multiple paper sticks, wherein the drying takes place after the paper stick forming, wherein the drying device comprises a spiral conveyor which is able to be acted upon with warmed ambient air by means of a blower device, and wherein the operation of the spiral conveyor and blower device is in particular adjustable and is able to be controlled and/or regulated.

25. The drying device according to claim 24, wherein the conveying of the paper sticks takes place along a radially winding conveying section, in particular with a conveying section length, wherein the windings of the conveying section have a conveying section diameter, wherein the conveying section comprises a height difference, and wherein the radio of height difference/conveying section diameter is at least approximately 2.

26. A post-treatment drum for the post-treatment of paper sticks, for a paper processing device for the processing of a paper web section to form multiple paper sticks, wherein the post-treatment drum is rotatable, wherein the post-treatment drum is suitable for coating paper sticks, and wherein the post-treatment drum has a drum geometry adapted to the conveying- and movement characteristics of the manufactured paper sticks with a polygonal.

27. The post-treatment drum according to claim 26, wherein on at least one end face, the drum has at least one opening.

28. A paper processing device for the processing of a paper web section to form multiple paper sticks, wherein a paper supply receiving device is provided, and/or wherein a web tensioning control device is provided, and/or wherein a lateral edge controlling device is provided, and/or wherein a high speed paper web conveying arrangement is provided, and/or wherein a paper web conveying- and folding device is provided, and/or wherein a rolling arrangement is provided, and/or wherein an additive adding device is provided, and/or wherein a cutting arrangement is provided, and/or wherein a disposal device is provided, and/or wherein a sorting device is provided, and/or wherein a drying device is provided, and/or wherein a post-treatment drum is provided.

29. A method for producing paper sticks, in which one or more measures are implemented according to a paper processing device according to claim 28, in particular a receiving of paper supply, and/or a controlling of web tensioning, and/or a lateral edge controlling and/or a paper web conveying and folding, and/or a rolling, and/or an adding of additive, and/or a cutting, and/or a disposal, and/or a sorting, and/or a drying, and/or a post-treatment.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0056] In the drawings there are shown

[0057] FIG. 1 a paper processing device in schematic lateral view and

[0058] FIG. 2 a rolling arrangement of a paper processing device in schematic lateral view.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

[0059] A schematic illustration of a paper processing device 1 can be seen from FIG. 1. The paper processing device 1 comprises several paper processing stations. Paper processing measures take place in each of the stations.

[0060] A paper supply 2 is arranged in a paper supply receiving device 3. The paper supply 2 is formed as a paper roll 2. The paper roll 2 can have a net weight of 600 kg. The paper roll 2 can also be heavier or lighter. The paper roll 2 is arranged and fastened in the paper supply receiving device 3 without a pin or other tools; rather, it is clamped there pneumatically or hydraulically. A paper web 4 can be unrolled from the paper roll 2. The paper web 4 has a width of preferably more than 350 mm.

[0061] The paper processing device 1 according to FIG. 1 further comprises a rolling arrangement 5, which is illustrated in more detail in FIG. 2. A paper web section 6 of the paper web is formed to a paper body with the rolling arrangement 5, wherein the paper body has substantially a cylindrical cross-section.

[0062] Between the paper supply receiving device 3 and the rolling arrangement 5, a web tensioning control device is provided, by which the web tension is controlled. In addition, a lateral edge controlling device is provided, with which the paper web 4 is able to be conveyed in a controlled manner with regard to the position and direction of one or both lateral edges of the paper web 4.

[0063] The paper processing device 1 according to FIG. 1 further comprises a high speed paper web conveying arrangement. Through the interaction of the stations, paper supply receiving device 3, web tensioning control device and lateral edge control, such a wide (more than 350 mm) paper web 4 is able to be successfully conveyed very quickly and precisely to the rolling arrangement 5. Thus, on the one hand, owing to the high conveying speed per unit of time, a large quantity of paper can be rolled, i.e., formed to a paper body. On the other hand, several paper sticks can be formed, by cutting to size, from the comparatively wide paper body per rolling- or forming process. As a result, the paper processing device 1 described herein operates quickly and, in so doing, produces more paper products than would be feasible according to the prior art.

[0064] So that a paper web section 6 in the rolling arrangement 5 can be formed to a paper body, the paper web 4, originating from the paper supply 2, must be firstly cut to a desired length. This takes place in the high speed paper web conveying arrangement, where a perforation is formed in the paper web 4 by means of perforating blades, and where a paper web section 6 is separated from the paper web 4 by means of a crosscutting roller where the perforation was formed.

[0065] So that in the rolling arrangement 5 a paper web section 6 can be formed to a paper body, the paper web 4 originating from the paper supply 2 must firstly be acted upon with a fold. This takes place in the paper web conveying- and folding device 19. The paper web conveying- and folding device 19 comprises five conveying rolls, wherein a conveying roll is formed as a profiled folding roll, which folds or creases the paper web section 6. The folding roll lies against a counter-roll, which is coated, and which has a conical cross-section with up to 2 mm conicity. The conicity is preferably less than approximately 1 mm and/or more than approximately 0.5 mm, for example approximately 0.7 mm.

[0066] The rolling arrangement 5 according to FIG. 2 comprises a rolling drum 8, arranged rotatably on a carrier 7. A statically fastened cover 9, i.e., not movable during the rolling operation, is arranged above the rolling drum 8. A rolling space 10 is formed between cover 9 and rolling drum 8. The rolling space 10 has different dimensions over the circumference of the roller 8. The paper web section 6, which is cut to length and is provided with fold in the folding device 19, arrives into the rolling space 10 and is rolled up there to form a paper body which is very compact and almost cylindrical in cross-section.

[0067] For fixing the edge of the paper web section 6 on the circumference of the shaped paper body, the paper which is to be processed is acted upon by an additive which is formed from water. This takes place in the additive adding device 11, which wets the lower region 12 of the rolling drum 8 with additive, i.e., substantially opposite the cover 9 on the underside of the rolling arrangement 5, by means of a rotor application system, so that in the further process the paper body is also acted upon with the additive. In this respect the paper is wetted indirectly, namely by the rolling drum being wetted.

[0068] Following thereon, the paper body arrives into a cutting arrangement 13, where the paper body is cut to size so that one or more paper sticks are formed therefrom. Provision can be made that the paper body is firstly cut at the ends (end cut-off), and then the body (cut at the end side) is cut up into several parts (body cutting), wherein these cut parts form the paper sticks. The devices for the end cutting-off and for the body cutting can be separated spatially from one another in the cutting arrangement 13 or respectively in the paper processing device 1, and/or able to be controlled/regulated separately. Provision can also be made that the end cutting and the body cutting take place in a combined process step with accordingly configured cutting device 13.

[0069] The end pieces are disposed of; for this a sorting- and/or screen device can be provided, which sorts out the short end pieces and further conveys the (longer) paper sticks. Preferably, the ends are separated by the cutting device 13, wherein they fall as paper residues or waste into the disposal device 14 which is arranged substantially under the rolling arrangement 5.

[0070] A further station of the paper processing device 1 according to FIG. 1 forms the sorting device 15, which is formed in a multi-stage manner. The paper sticks are aligned there and deposited in at least one sorting box 16, wherein the paper sticks are arranged tightly in the sorting box 16 with as little intermediate space as possible, and parallel, i.e., without directional errors. This is essential for a quick and efficient further processing. The sorting device 15 comprises at least one vibration stimulation, by which a trough and/or the sorting box 16 is/are set into mechanical oscillation.

[0071] A further station of the paper processing device 1 forms a drying device 17. It comprises a spiral conveyor, i.e., a conveying trough arranged in a helical manner, with a gradient. The spiral conveyor is able to be acted upon with warm or hot air by means of a blower device, so that the paper sticks which are conveyed in the spiral conveyor are dried, for instance for the residue-free removal of the (water) additive.

[0072] A further station of the paper processing device concerns a post-treatment drum 18, in which the paper sticks can be fed to a post-treatment. A post-treatment can comprise a coating or a hardening or a quality control. The post-treatment drum 18 has a hexagonal cross-section and rotates with adaptable speed.

[0073] The paper processing device 1 according to FIG. 1 is able to be set and adjusted with regard to several technical functions. This concerns the paper web speed, the cutting device(s), the rolling process, disposal measures, sorting- and conveying measures and the providing of the paper sticks for the further processing. Temperatures can be set/varied, for instance during drying or during post-treatment, the additive quantity and additive composition and the additive temperature can be set/varied, the vibration stimulation of the sorting device 15 is able to be changed with regard to frequency and amplitude, and many more. At least one control- and regulating circuit can be provided for the coordinated adjustment of these paper processing parameters of the paper processing device 1.

[0074] FIG. 1 also represents one or more paper processing methods in which individual or multiple paper processing steps are carried out. A paper processing step concerns the providing of a paper web by means of a paper supply. A further processing step concerns the positionally- and directionally accurate conveying and/or cutting to length of the paper web. A further method step concerns the arranging of a fold or of a creased region on a paper web section. A further method step concerns the shaping of a paper web section with a rolling arrangement. A further method step concerns the adding of an additive, in particular with regard to a fixing of the paper web edge on the circumference of the (almost) cylindrical paper body. A further method step concerns the trimming of the shaped paper body, so that paper sticks with desired dimensions are formed. A further method step concerns the disposal of cutting residues or respectively paper waste. A further method step concerns the sorting and/or post-treatment of manufactured paper sticks.

[0075] With the paper processing device 1 and/or with the paper processing method, accuracies or respectively tolerances are produced, which with respect to the nominal length of a paper stick are approximately 1/10 mm and with respect to the nominal diameter of the stick are approximately 1/100 mm. Within a manufacturing process, in which large quantities of paper sticks of particular nominal length and of particular nominal diameter are manufactured, the values named herein for deviations/tolerances are less due to the process stages and device components which are precisely coordinated to one another.

LIST OF REFERENCE NUMBERS

[0076] 1 paper processing device [0077] 2 paper supply, paper roll [0078] 3 paper supply receiving device [0079] 4 paper web [0080] 5 rolling arrangement [0081] 6 paper web section [0082] 7 carrier [0083] 8 rolling drum [0084] 9 cover [0085] 10 rolling space [0086] 11 additive adding device [0087] 12 lower region [0088] 13 cutting arrangement [0089] 14 disposal device [0090] 15 sorting device [0091] 16 sorting box [0092] 17 drying device [0093] 18 post-treatment drum [0094] 19 paper web conveying- and folding device