EP3405421A1 - Vorrichtung und verfahren zum wechsel eines wickels und zum verbinden einer neuen materialbahn an ein ende einer alten materialbahn - Google Patents
Vorrichtung und verfahren zum wechsel eines wickels und zum verbinden einer neuen materialbahn an ein ende einer alten materialbahnInfo
- Publication number
- EP3405421A1 EP3405421A1 EP17700958.6A EP17700958A EP3405421A1 EP 3405421 A1 EP3405421 A1 EP 3405421A1 EP 17700958 A EP17700958 A EP 17700958A EP 3405421 A1 EP3405421 A1 EP 3405421A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- material web
- web
- trailing end
- transport
- winding
- 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
- 239000000463 material Substances 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims description 51
- 239000002390 adhesive tape Substances 0.000 description 11
- 230000008859 change Effects 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
- B65H19/181—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll
- B65H19/1821—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll the replacement web being accelerated or running prior to splicing contact
-
- 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
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1857—Support arrangement of web rolls
- B65H19/1863—Support arrangement of web rolls with translatory or arcuated movement of the roll supports
-
- 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
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1884—Details for effecting a positive rotation of web roll, e.g. accelerating the replacement roll
- B65H19/1894—Details for effecting a positive rotation of web roll, e.g. accelerating the replacement roll the replacement web being accelerated through contact with the expiring web
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/4606—Preparing leading edge for splicing
- B65H2301/4607—Preparing leading edge for splicing by adhesive tape
- B65H2301/46072—Preparing leading edge for splicing by adhesive tape inserted between leading edge and wound web roll
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/4606—Preparing leading edge for splicing
- B65H2301/46075—Preparing leading edge for splicing by adhesive tab
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/462—Form of splice
- B65H2301/4623—Spaced article or web portions, i.e. gap between edges
Definitions
- the invention relates to a device and a method for unwinding a material web.
- a transport device in particular a transport roller, via which the first material web can be guided in a guide region at a transport speed
- a second winding with which the new material web can be provided
- a control and / or regulating device for mutually adjusting the trailing end and the web start, so that the trailing end and the web start occupy a distance of greater than 0 mm from each other and in particular are free of overlap
- the wound on the first winding material web is therefore in the unwinding device, in particular at a first unwinding position.
- the winding is preferably rotatably drivable by a drive in order to simplify the unwinding.
- the material web is then transportable via a transport device, in particular a transport roller, wherein the material web usually does not occupy the entire transport surface, but only a part thereof, for example, a cylinder segment in a transport roller.
- This area can generally be referred to as a management area.
- the material web with a Transported transport speed may be spaced from the winding or be in direct contact with the outermost layer of the Wickeis.
- a second winding with which the new material web is available.
- This winding can then be in a second unwinding position.
- the first winding can be brought into a second unwinding position and the second winding can be introduced into the first winding position into the unwinding device.
- the reel In the unwinding position, the reel is movable within the unwinding device.
- a drive is included, with which the winding is rotatably drivable.
- the winding can be accelerated and also braked by the drive, wherein for braking alternatively or additionally a separate brake can be provided.
- a separating device is provided with which a trailing end of the first material web can be produced.
- This separating device acts on the material web in the guide area or in front of it.
- upstream or “upstream” is meant a position which, viewed in the transporting direction, lies between the first winding and the transporting device, in which case the separating device is immovable relative to the material web, at least at the moment of the separating operation, ie it moves with itself the transport speed of the material web.
- a control and / or regulating device for mutual adjustment or positioning of the trailing end and a web start of the new material web.
- the control and / or regulating device of the new winding and / or the new material web adjustable to a transport speed which occupies the old material web at the moment of connecting the trailing end of the first material web.
- the setting can be done before the actual connection. It is crucial, however, that after setting the transport speeds of the first and the second web only synchronously, preferably no longer, be changed.
- the mutual adjustment includes not only the speed synchronization, but also the placement of the web start on a base on which rests the end of the first material web. In particular, this is the guiding area of the transport device.
- the setting is carried out so that the distance between the trailing end and the web start is greater than 0 mm.
- An overlap would mean an excessive, usually twice the material thickness, in addition to the material that is required for durable connection of the two webs, such as adhesive or adhesive tape, in addition to the thickening contributes.
- Such a thick spot is capable of disturbing the operation of a processing machine.
- the unwinding device according to the invention provides a connection point which can be processed more easily in a processing machine and avoids disturbances there.
- both material webs are connected to one another with a connecting element, wherein as a connecting element, for example, an adhesive tape can be used.
- a connecting element for example, an adhesive tape can be used.
- the guide region of the transport device can provide the necessary counterforce during the process of joining and thus serves as a counter-surface.
- the setting and / or the joining take place at a transport speed of more than 0 meters per minute (m / min), preferably more than 50 m / min, in particular more than 100 m / min.
- m / min meters per minute
- the processing machine can be continuously supplied with the material web, so that they can continue to produce without or with little restrictions.
- the transport path of the material web downstream of the transport device is not changed during the joining.
- the device is designed buffer-free.
- a cache which is often designed as a dancer, could allow a connection of the webs at standstill, without the postpress machine must be slowed or stopped, but such a cache is space consuming, expensive and maintenance-prone.
- such a buffer leads to different web tension, which can be very disadvantageous for many applications, as this may change the properties of the webs, in particular if the web is or comprises a plastic film.
- a transport device is provided, in which the separating device is integrated.
- the separating device can be configured as a separating knife.
- the separating device can be integrated within the transport device, in particular within the roller body of a transport roller and protrude in its functional position from the outer surface of the transport device and thus cause the separation of a material web.
- a transport device may additionally comprise means for fixing the first and / or the second material web on the guide region. This can be acted upon with a vacuum holes in the guide region of the transport device, such as suction holes. But it can also be provided electrodes that can provide an electrostatic charge of the web. An electrostatic attraction between web and guide area can thus be caused, which is particularly effective in plastic sheets.
- blowing nozzles can be provided with which a gas flow can be directed onto the material web in order to be able to apply a force in the direction of the guide region.
- a brake device can act on the first winding in order to be able to retain the end of the first material web following the separation, so that it does not get into the region in which the connection of the first Material web takes place with the second material web.
- the optional drive can be operated as a generator (electric brake) and / or a mechanical brake can be provided, which preferably acts on the winding axle receiving the winding.
- the separating cut is preferably a section running at right angles to the transport direction of the material web, so that the trailing end and the web start, in particular if this is also an edge extending at right angles to the transport direction, have a constant distance, which has a positive effect on the tensile forces during further transport the material webs affects. Different tensile forces and / or web tension in order to minimize or even completely prevented. Overall, the first material web can be severed and the resulting trailing end held in the guide area.
- a double-sided adhesive tape may be provided whose adhesive sides have different adhesive forces.
- the side that has the lower adhesive force can be used to initially have the web start on the roll, especially when the roll is rotating.
- the side which has the higher adhesive force can be attached to the web start so that a first surface part of this side adheres to the web start and a second surface part is free and is brought in adjusting to the trailing end with this in combination.
- the transport device can be configured such that the mutual adjustment of the trailing end and the web start the latter is held by holding forces on the transport device. Also in this case can be acted upon with negative pressure holes in the jacket of the transport device conceivable, which are used for sucking fixing at least the beginning of the web. Also, blowing nozzles, from which a pressurized gas flows out, wherein the gas flow is directed to the web start, is conceivable. Again, electrodes for electrostatically charging the web to cause an electrostatic attraction force are also conceivable here. For the above purpose, mechanical aids such as holding tongs may be provided.
- a fastener application device can be provided within the unwinding device, in particular an adhesive tape application device.
- a connecting element can then be applied when the trailing end and the web start are already set mutually and are still in the management area.
- a further transport device for the new material web can be provided, with which the new material web can be guided before setting on the trailing end.
- a further separation device for generating a web start is also provided.
- This further transport device also includes a guide area. After the web start has been produced, the further transport device can be set against the first transport device, wherein the beginning of the web can be transferred to the first transport device.
- this transfer process can be supported by at least one device for repelling the web start of the other transport device. This may be, for example, openings on the outer surface of the transport device, which can be acted upon by an overpressure, so that the web start dissolves from said guide region of the second transport device.
- the object mentioned at the outset is also solved by the features of claim 8. Accordingly, a method for changing a coil and for connecting a new material web to an end of an old material web is provided, wherein
- a wound-up, first material web is unwound from a first winding
- the first material web is guided via a transport device, in particular transport roller, in a guide region with a transport speed,
- the second winding is rotationally driven by a drive device
- the first material web is severed with a severing device for cutting to create a trailing end in the guide region or upstream of the guide region,
- FIG. 1 schematic diagram of an unwinding device according to the invention during the unwinding phase
- FIG. 2 is a schematic diagram of an unwinding device according to the invention with a first reel displaced into the interchangeable position
- FIG. 3 Schematic diagram of an unwinding device according to the invention with a first reel displaced into the interchangeable position
- FIG. 4 Schematic diagram of an unwinding device according to the invention with a second reel prepared for reel change
- FIG. 6 schematic diagram of an unwinding device according to the invention, wherein the web end of the first coil and the web start of the second
- FIG. 7 schematic diagram of an unwinding device according to the invention, wherein the first winding is removed.
- FIG. 1 shows a schematic diagram of an unwinding device 100 according to the invention during the unwinding phase, in which initially a winding 101 is located in the unwinding device 100.
- the material web 102 is withdrawn from the winding 101 and passes over a contact roller 103, to which preferably the winding 101 is employed.
- the winding 101 may be rotatably mounted on carriages, not shown, in which case the carriages on rails are displaceable relative to the contact roller 103.
- the rails are connected to pivoting tines 104, which are pivotable about the axis of rotation 105 of the contact roller 103, so that the winding 101 can assume different angular positions of the contact roller 103.
- the winding 101 rotate in the direction of the arrow 111 and the contact roller 103 in the direction of the arrow 113, ie they rotate in opposite directions.
- the transport direction of the material web 102 is indicated by the arrow 112. 2 now shows the situation in which the winding 101 was unwound to a small roll size, in which there is only so much material web on the reel, that only a small safety margin is available at the end of the change process.
- the pivot arms 104 were pivoted against the direction of rotation of the contact roller 103 in the direction of the arrow 201, so that the winding 101 can be transferred to the bearing arms 202. In this position, which can be referred to as the second winding position, the winding is still unwound.
- FIG. 3 it is now shown that the winding remains in the second unwinding position.
- the pivot arms 104 are now pivoted back.
- the position taken by the pivot arms after pivoting back can be the unwinding position as shown in FIG. 1, or also a receiving position for receiving a new reel 121 as shown. This position is preferably lowered relative to the unwinding position according to FIG Do not lift a winder with a crane or forklift truck.
- FIG. 4 now shows the situation according to FIG. 3, but with pivot arms 104 pivoted back into the unwinding position.
- FIG. 4 shows yet another advantageous detail.
- the new roll 121 is prepared in such a way for a roll change that a double-sided adhesive tape 122 is glued in the transition region from the first material web layer to the second material web layer of the roll 121 in the transverse direction with its bottom 124.
- a double-sided adhesive tape 122 is glued in the transition region from the first material web layer to the second material web layer of the roll 121 in the transverse direction with its bottom 124.
- the web beginning 125 is glued with its rear side.
- the not occupied with the web start 125 part of the top 123 of the adhesive tape 122 remains initially free.
- Fig. 5 is now shown that the second winding has been set in rotation. This is indicated by the arrow 131.
- the second roller 121 was synchronized with the contact roller 103 with respect to the peripheral speed and the angular position, wherein the web start 125 impinges on the contact roller 103 at or shortly after the position 141 of the separating knife 142 of the contact roller 103.
- short of is preferably meant a range of greater than 0 millimeters (mm) to 30 mm, more preferably to 20 mm, and preferably to 10 mm
- the severing blade, after being wound 101 has moved out of the peripheral surface of the contact roller in order to cut through the material web 102.
- the separating knife 142 is withdrawn so as not to damage the winding 121.
- the winding 121 has already been moved up by the carriage-rail system described above to the contact roller 103 in order to come into contact with it reaches the web end of the web 102 of the web start of the new roll 121, the contact line, now the free surface of the tape it 122 is placed on the tail, so that thus the tail of the web 102 is connected to the web start of the new roll.
- the double-sided adhesive tape 122 includes an upper surface 123 which has a higher adhesion with respect to the material of the material webs than the adhesion of the underside 124 of the adhesive tape. It can thus be ensured that when the connection of the two material webs has taken place, the adhesive tape also comes off the transition between the first and second material layers of the reel 121.
- means may be provided which act on the tail and / or the web start with an additional force in the direction of the surface of the contact roller.
- Preferably, for this purpose can be provided with negative pressure openings in the surface of the contact roller, such as suction holes, may be provided. Such openings are not shown in FIG. 6.
- the first roll 101 Before the web end 143 of the first roll 101 produced by the severing blade 142 could reach the contact line between the second roll 121 and the contact roll 103, the first roll 101 would not pass through one Braking device shown braked, so that the tail 143 does not reach the region of the contact line.
Landscapes
- Replacement Of Web Rolls (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL17700958.6T PL3405421T5 (pl) | 2016-01-18 | 2017-01-18 | Urządzenie i sposób wymiany zwoju i łączenia nowej taśmy materiałowej z końcem starej taśmy materiałowej |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016200570 | 2016-01-18 | ||
PCT/EP2017/050982 WO2017125436A1 (de) | 2016-01-18 | 2017-01-18 | Vorrichtung und verfahren zum wechsel eines wickels und zum verbinden einer neuen materialbahn an ein ende einer alten materialbahn |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3405421A1 true EP3405421A1 (de) | 2018-11-28 |
EP3405421B1 EP3405421B1 (de) | 2020-03-11 |
EP3405421B2 EP3405421B2 (de) | 2023-04-26 |
Family
ID=57860861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17700958.6A Active EP3405421B2 (de) | 2016-01-18 | 2017-01-18 | Vorrichtung und verfahren zum wechsel eines wickels und zum verbinden einer neuen materialbahn an ein ende einer alten materialbahn |
Country Status (4)
Country | Link |
---|---|
US (1) | US11192744B2 (de) |
EP (1) | EP3405421B2 (de) |
PL (1) | PL3405421T5 (de) |
WO (1) | WO2017125436A1 (de) |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4838461B1 (de) * | 1969-02-26 | 1973-11-17 | ||
JPS5329174B2 (de) * | 1973-11-29 | 1978-08-18 | ||
US3939032A (en) * | 1974-12-27 | 1976-02-17 | Compensating Tension Controls, Inc. | Web butt splicer |
GB1546561A (en) * | 1975-06-04 | 1979-05-23 | Agfa Gevaert | Tbuttsplicer |
GB1519524A (en) * | 1975-11-19 | 1978-08-02 | Agfa Gevaert | Butt splicer for butt-joining a fresh web to an expiring web |
US4238261A (en) † | 1978-10-02 | 1980-12-09 | The Black Clawson Company | Method for forming a zero tail length splice in a moving web |
IT1264115B1 (it) * | 1993-04-09 | 1996-09-10 | Azionaria Costruzioni Acma Spa | Dispositivo di cambio-bobina per dispositivi di alimentazione di materiale in nastro ad una macchina operatrice. |
US5881964A (en) † | 1996-05-24 | 1999-03-16 | Fuji Photo Film Co., Ltd. | Web splicing apparatus having offset splicing and taping |
US5900090A (en) | 1997-05-19 | 1999-05-04 | Distefano; Joseph | Apparatus and method for setting a gap between strips of web |
IT1299879B1 (it) * | 1998-03-05 | 2000-04-04 | Gd Spa | Unita' di alimentazione di un nastro ad una macchina utilizzatrice. |
US6893531B1 (en) * | 1998-11-06 | 2005-05-17 | Asterisk, Inc | Slitter-splicer for joining the ends of sheets |
US6792987B2 (en) * | 2000-07-06 | 2004-09-21 | Paktech, Inc. | Automatic label splicing apparatus |
US6701992B1 (en) * | 2002-09-27 | 2004-03-09 | New Era Converting Machinery, Inc. | Automatic butt splicer for converting machine |
US7022205B2 (en) | 2002-10-01 | 2006-04-04 | Martin Automatic Inc. | Apparatus and method for forming a butt splice |
US6817566B2 (en) * | 2002-10-30 | 2004-11-16 | Butler Automatic, Inc. | Web splicer |
DE102006042728A1 (de) | 2006-09-12 | 2008-03-27 | Siemens Ag | Verfahren und Vorrichtung zum Verbinden zweier Materialbahnen |
US20140131504A1 (en) * | 2011-03-01 | 2014-05-15 | Essel Propack Ltd. | Automatic splicing system and method |
US9469494B2 (en) | 2013-03-07 | 2016-10-18 | Martin Automatic, Inc. | Apparatus and methods for forming a butt splice on a running web |
US10457512B2 (en) * | 2016-09-19 | 2019-10-29 | New Era Converting Machinery, Inc. | Automatic lapless butt material splice |
-
2017
- 2017-01-18 WO PCT/EP2017/050982 patent/WO2017125436A1/de active Application Filing
- 2017-01-18 EP EP17700958.6A patent/EP3405421B2/de active Active
- 2017-01-18 PL PL17700958.6T patent/PL3405421T5/pl unknown
- 2017-01-18 US US16/069,472 patent/US11192744B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2017125436A1 (de) | 2017-07-27 |
US11192744B2 (en) | 2021-12-07 |
US20190016550A1 (en) | 2019-01-17 |
EP3405421B1 (de) | 2020-03-11 |
PL3405421T3 (pl) | 2020-09-21 |
PL3405421T5 (pl) | 2023-06-12 |
EP3405421B2 (de) | 2023-04-26 |
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