EP1361995A1 - Vorrichtung zur vorbereitung einer materialrolle - Google Patents
Vorrichtung zur vorbereitung einer materialrolleInfo
- Publication number
- EP1361995A1 EP1361995A1 EP02708175A EP02708175A EP1361995A1 EP 1361995 A1 EP1361995 A1 EP 1361995A1 EP 02708175 A EP02708175 A EP 02708175A EP 02708175 A EP02708175 A EP 02708175A EP 1361995 A1 EP1361995 A1 EP 1361995A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- projection device
- projected
- laser beam
- peripheral surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/102—Preparing the leading end of the replacement web before splicing operation; Adhesive arrangements on leading end of replacement web; Tabs and adhesive tapes for splicing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2601/00—Problem to be solved or advantage achieved
- B65H2601/30—Facilitating or easing
- B65H2601/32—Facilitating or easing entities relating to handling machine
- B65H2601/325—Manual handling of handled material
Definitions
- the invention relates to a device for preparing a material roll for a roll change according to the preamble of claim 1.
- a flying roll change of the material rolls used, namely the paper rolls, is necessary in order to enable continuous production without machine downtime.
- the continuous gluing i.e. the gluing of a new roll to the running roll must be carried out at recurring intervals depending on the printing speed and capacity of the individual roll.
- the run-off time of a roll with a diameter of 127 cm at a printing speed of 25 m / s is, for example, approximately 17 minutes, from which it follows that the operating personnel have to change the roll almost four times an hour.
- DE 39 18 552 A1 describes a device for preparing a material roll for the roll change, in which the preparation takes place automatically.
- the invention has for its object to provide a device for preparing a roll of material.
- a projection device is provided on the device, with which predetermined flat structures can be projected onto the peripheral surface of the material roll.
- a projection device is provided on the device, with which predetermined flat structures can be projected onto the peripheral surface of the material roll.
- the projection device can be designed in any way, as long as the structures to be projected are marked with sufficient clarity and selectivity on the circumferential surface of the roll of material. It is particularly advantageous if the projection device has at least one laser unit, the laser beam of which can be directed onto the peripheral surface of the material roll, since laser light enables excellent imaging quality. Since the laser beam generates only one light spot on the peripheral surface, the laser beam must be deflectable in such a way that the laser beam sweeps over the peripheral surface of the roll of material in accordance with the structure to be projected. In other words, this means that the light point projected onto the circumferential surface by the laser unit corresponds to the desired structure to be imaged with a certain repetition frequency over the surface of the surface Rolls of material and draws the desired picture. If the repetition frequency is selected to be sufficiently high to sweep over the structure, the result of the inertia of the human eye is a visual impression which corresponds to an image of the desired structure as a whole.
- the laser beam should preferably sweep over the structure to be projected on the circumferential surface of the material roll at a frequency of at least 30 Hertz, since this results in a largely flicker-free image of the desired structure on the circumferential surface, which can be easily recognized by the operating personnel.
- mirrors which are movably mounted and can be driven by remote control in the laser unit and by means of which the laser beam can be deflected.
- an image projector can also be used as the projection device, with which suitable structure images can be projected onto the peripheral surface.
- a slide projector with which structural images displayed on slides can be projected onto the material roll.
- one of the desired structures would have to be represented as a structural image, for example by photographic recording.
- computer image projectors so-called “projectors”, can also be used.
- the image signals of a standard PC for example in accordance with the VGA standard, can be processed and projected onto an image plane.
- the structures to be imaged could thus be simply onto a PC constructed and then immediately projected onto the roll of material via the computer image projector.
- a CAD work station should be connectable to the projection device according to the invention.
- the data for describing the predetermined flat structures can be generated in a simple manner at the CAD work station, for example using a 2D construction program, and then via a data interface as data for describing the structure to be projected to the projection device, for example to the laser unit or to a computer image projector.
- the curvature of the circumferential surface in the circumferential direction can result in distortions when projecting the desired structure.
- known conversion methods can in principle be used, so that the data for the description of the predetermined flat structure is converted into the data for the description of the projecting structure for the projection unit depending on the diameter of the material roll. As a result, such a conversion enables a distortion-free projection of the desired structure to be achieved.
- the only drawing shows a schematically represented device in front view.
- a device 01 for the manual preparation of a material roll 02 to be used for a flying roll change is shown.
- the material roll 02 is placed on a roller frame 03 by means of conveying devices, not shown.
- the operator removes the top layer of the roll in order to eliminate damage.
- the first step in the actual roll preparation must then be the beginning of the web Material roll can be cut into a V-shape.
- a projection device 08 is provided on the device 01, which is fastened to a frame 04 above the material roll 02 by means of a traverse 09.
- An opening is provided on the underside of the projection device 08, from which a laser beam 12 generated by a laser unit 08 arranged in the interior of the projection device 08 can emerge and is projected onto the peripheral surface 13 of the material roll 02.
- the laser beam 12 is then deflected at a frequency of 30 Hertz in such a way that the light spot of the laser beam 12 projected onto the circumferential surface 13 sweeps over the circumferential surface 13 along the desired V-shaped structure of the web start to be produced. This enables the operating personnel to find the desired cutting line immediately without any additional aids and to cut the beginning of the web in a suitable manner with the desired shape.
- the projection device 08 is located on the peripheral surface 13 of the material roll 02 at a distance of 0.5 m to 5 m, in particular at a distance of approximately 2 m.
- the structures can be projected onto the peripheral surface 13 of the material roll 02 with a resolution of at least 0.2 mm, in particular with a resolution of 0.12 mm.
- the positions or the structures of the labels 14 to be attached, the tip label 16, the surfaces 17 to be kept free for a belt drive and the adhesives 18 to be attached are projected onto the circumferential surface 13 in a similar manner and can thus be easily attached or kept in the correct position by the operating personnel.
- a control PC 11 is set up as a CAD work station on which the projected Structures can be constructed depending on the application.
- the data for controlling the projection device 08 are then transmitted from the control PC 11 via the data line 19 in order to control the mirrors for deflecting the laser beam 12.
Landscapes
- Labeling Devices (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Making Paper Articles (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Unwinding Webs (AREA)
- Replacement Of Web Rolls (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10108746A DE10108746C2 (de) | 2001-02-23 | 2001-02-23 | Vorrichtung zur Vorbereitung einer Materialrolle |
| DE10108746 | 2001-02-23 | ||
| PCT/DE2002/000275 WO2002066352A1 (de) | 2001-02-23 | 2002-01-28 | Vorrichtung zur vorbereitung einer materialrolle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1361995A1 true EP1361995A1 (de) | 2003-11-19 |
| EP1361995B1 EP1361995B1 (de) | 2007-07-18 |
Family
ID=7675245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02708175A Expired - Lifetime EP1361995B1 (de) | 2001-02-23 | 2002-01-28 | Vorrichtung zur vorbereitung einer materialrolle |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1361995B1 (de) |
| AT (1) | ATE367345T1 (de) |
| DE (2) | DE10108746C2 (de) |
| WO (1) | WO2002066352A1 (de) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3918552C2 (de) * | 1989-06-02 | 1996-07-11 | Kaneda Kikai Seisakusho Toyona | Maschine zum Vorbereiten von Papierrollen für den Spleißvorgang |
| DE4219968C2 (de) * | 1992-06-19 | 1994-04-14 | Koenig & Bauer Ag | Klebespitze für Papierrollen |
-
2001
- 2001-02-23 DE DE10108746A patent/DE10108746C2/de not_active Expired - Fee Related
-
2002
- 2002-01-28 DE DE50210499T patent/DE50210499D1/de not_active Expired - Fee Related
- 2002-01-28 AT AT02708175T patent/ATE367345T1/de not_active IP Right Cessation
- 2002-01-28 WO PCT/DE2002/000275 patent/WO2002066352A1/de not_active Ceased
- 2002-01-28 EP EP02708175A patent/EP1361995B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO02066352A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002066352A1 (de) | 2002-08-29 |
| DE10108746A1 (de) | 2002-09-12 |
| DE10108746C2 (de) | 2003-02-13 |
| ATE367345T1 (de) | 2007-08-15 |
| EP1361995B1 (de) | 2007-07-18 |
| DE50210499D1 (de) | 2007-08-30 |
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