EP3083463B1 - Dispositif de découpe automatique et d'évacuation d'une bande de matière et procédé associé - Google Patents

Dispositif de découpe automatique et d'évacuation d'une bande de matière et procédé associé Download PDF

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Publication number
EP3083463B1
EP3083463B1 EP14814862.0A EP14814862A EP3083463B1 EP 3083463 B1 EP3083463 B1 EP 3083463B1 EP 14814862 A EP14814862 A EP 14814862A EP 3083463 B1 EP3083463 B1 EP 3083463B1
Authority
EP
European Patent Office
Prior art keywords
web
roller
funnel
residual
cutting device
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.)
Active
Application number
EP14814862.0A
Other languages
German (de)
English (en)
Other versions
EP3083463A1 (fr
Inventor
Fabian Sundermann
Frank Hoffmann
Werner Beckonert
Rolf Kammann
Thomas Sehlleier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to EP19157477.1A priority Critical patent/EP3514090B1/fr
Publication of EP3083463A1 publication Critical patent/EP3083463A1/fr
Application granted granted Critical
Publication of EP3083463B1 publication Critical patent/EP3083463B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H20/00—Advancing webs
    • B65H20/14—Advancing webs by direct action on web of moving fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D9/00—Cutting apparatus combined with punching or perforating apparatus or with dissimilar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41487—Winding slitting trimming edge
    • 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
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5151—Cutting handled material transversally to feeding direction
    • 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
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5155—Cutting handled material longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/31—Suction box; Suction chambers

Definitions

  • edge strips are produced by a longitudinal continuous cut, it is necessary at the beginning of the cutting process that especially the end of the edge strip, i. H. the area in which the longitudinal cutting knife has for the first time entered the material web for severing the same also to cut transversely to the longitudinal direction L.
  • the DE 20 2011 004 608 U1 shows a device in which a longitudinal cutting knife continuously cuts the material web into a partial web and into an edge strip.
  • the longitudinal cutting blade produces an incision which at the same time forms the boundary between the partial web and the edge strip.
  • the cross-cutting of the material web, in particular of the edge strip is effected by a cross-cutting knife, which has a cutting blade and a separating device, which causes a separation of the edge strip from the part web before the cross-cutting of the edge strip.
  • the cutting blade finally cuts through the edge strip, wherein the material web fed further in the longitudinal direction L runs onto the cutting blade in the region of the edge strip, jams there and is forcibly fed to the removal device.
  • the leading separating device can negatively influence the cross cutting of the edge strip over the cutting blade.
  • an uncontrolled jamming of the material web is formed on the cutting blade, and in special situations it does not come to the reliable removal of the edge strip on the discharge device.
  • Another disadvantage is that in the removal process, the strips are not separated from the web after the longitudinal section, whereby edge effects occur.
  • the DE 10 2005 000 190 A1 discloses a device for cutting a material web with a longitudinal cutting device and a discharge device for discharging an edge strip of the material web.
  • the DE 10 2007 042 025 A1 discloses another device for cutting a web of material.
  • the object of the present invention is to provide a device and a method which enables a simple, reliable and secure cross-separation of the material web even at high web speeds.
  • cross-cutting or cross-cutting is understood to mean a severing of the residual web (edge strip) transversely to the longitudinal direction of the fed material web.
  • the essence of the invention is that the discharge device is suitable - without external assistance - to dissipate the residual web after cross-cutting.
  • the discharge device is suitable - without external assistance - to dissipate the residual web after cross-cutting.
  • An external separating device integrated on the cross-cutting blade detects the residual web and directs it into the discharge device
  • the invention provides exclusively the discharge device for an automatic retraction and removal of the residual web.
  • a negative pressure prevails in the discharge device, so that automatically after the cross cutting the residual web is sucked into the discharge device.
  • the present invention has the advantage that a plurality of partial webs can be produced and the discharge device can dissipate several residual webs simultaneously, which are formed when trimming the material web.
  • An essential advantage of the invention is that a separation of the residual web from the partial web takes place well in front of the cross-cutting device. This means that after a cross-cutting the residual web is separated from the part track far in front of the cross-cutting device, so that it is avoided that the edges of the residual web contact the edge of the part web and thus negative edge effects or edge defects occur.
  • the discharge device has a plurality of discharge channels in order to suck off a plurality of residual webs, in particular that the discharge channels can be changed in their position relative to the material web.
  • the discharge device to a pressure medium, which produce a desired negative pressure leaves to reliably suck the residual webs.
  • the pressure means may be, for example, a fan which works centrally for each discharge channel. It can also be provided that each discharge channel has an individual pressure medium.
  • the discharge channels are individually variable in their position to each other, which depends on the position of the longitudinal section of the material.
  • the displacement of the discharge channels can be done manually or automatically via actuators, so that a full automation of the device according to the invention is conceivable.
  • the discharge device has at least one funnel, which is formed with an inlet in order to remove the residual web.
  • each discharge channel has an individual funnel in order to discharge the residual web at its inlet.
  • a corresponding negative pressure sets during the automatic trimming of the web, whereby the residual web is automatically sucked through the inlet of the hopper.
  • the term “funnel” is to be understood as a component which does not necessarily have a changing cross section. Ex. Is it conceivable that the funnel has a constant cross section or varying cross sections. The term “funnel” can be equated within the scope of the invention with the term "nozzle”.
  • the removal device can be positioned on a first roller, which ensures transport of the material web, wherein in particular the geometry of the funnel in the region of the inlet is at least partially adapted to the geometry of the first roller.
  • the first roller can, for example, continue to transport the partial web or partial webs, wherein, for example, a corresponding deflection of the transport direction of the partial web or partial webs takes place on the first roller.
  • the slitter is upstream of the first roller, wherein the cross-cutting device is downstream of the first roller. So that the residual web is reliably removed from the discharge device, the discharge device is as close as possible to the first roller.
  • the first roller has a cylindrical shape and rotates about one Axis, wherein the geometry of the funnel is designed in the region of the inlet of a circular segment.
  • the hopper can be guided as close to the first roller, whereby a corresponding negative pressure within the hopper is established, which manages to automatically pull the residual web into the discharge device after the cross-cutting.
  • the invention provides that within the funnel a preferred roller is arranged to dissipate the residual web improved.
  • the preferred roller which is likewise mounted about an axis of rotation, within the funnel and detects the residual web, after a transverse separation has taken place outside the discharge device.
  • the rotation of the preferred roller takes place an active promotion or an active transport of the residual web in the direction of the discharge channel, wherein via the pressure medium of the discharge advantageously a corresponding negative pressure within the respective funnel is provided.
  • About the rotation of the preferred roller results in a uniform train in the residual web and a reliable separation of the residual web of the partial web.
  • it can thereby be achieved that negative edge effects on the partial web and / or on the residual web as well as the underflow of the partial web through the residual web is avoided.
  • the preferred roller can extend through a multiplicity of hoppers arranged adjacent to one another, wherein in particular each hopper has an opening.
  • the funnel with its funnel housing ensures a continuous increase in the flow rate of the air, at the same time reducing air turbulence.
  • the funnel housing has a funnel-like geometry, in particular narrows in its cross section.
  • a measure improving the invention can provide that the preferred roller is rotatably arranged inside the funnel such that a first air flow, which flows below the preferred roller, forms a second air flow, which flows above the preferred roller.
  • the preferred roller is arranged within the funnel such that the first air flow reliably pulls the residual web from the outside into the funnel.
  • the second air flow which flows above the feed roller, causes the residual web to reliably detach again from the rotating feed roller.
  • the first Air flow can also have the function to reliably press the residual web to the preferred roller, so that a satisfactory transport of the residual web is ensured by the discharge device.
  • the volumetric flow rate of the first airflow may, according to an aspect of the invention, be greater than the second airflow that flows above the preferredroller.
  • At least one closing element is provided, which can be brought between a closed position and an open position, wherein in the closed position, an opening of the funnel is closed and in the open position, the opening of the funnel is open.
  • the closure element located in the closed position the negative pressure within the funnel can be increased, wherein a train interruption in the material web during cross-cutting is simultaneously reduced.
  • the closing element is in the closed position. If the residual web start within the discharge device and is reliably dissipated there, in particular by the preferred roller, the closing element can be moved into the open position to effect an additional air flow into the interior of the funnel.
  • the power of the pressure medium during operation can advantageously be reduced in order to produce the same volume flow.
  • the invention comprises that in the region of the inlet, in particular downstream of the first roller, the cross-cutting device is arranged. About the negative pressure within the hopper, the residual web is pressed to the cross-cutting device and finally separated from her there, so that the start of the residual web is automatically sucked into the hopper and is detected accordingly by the air flow.
  • the discharge device may comprise at least one auxiliary roller which can be brought between two positions, wherein in the first position the auxiliary roller acts on the first roller and in the second position the auxiliary roller is spaced from the first roller. So that no web tension dips, interruptions cut, web breaks, etc. arise during cross cutting, the auxiliary roller is preferably in the first position. If a cross-cutting occurs, in particular in the area of the longitudinal cutting device no train interruption in the material web, which would be disadvantageous.
  • the control of the Auxiliary roll via a control unit in particular sensors may be provided which detect the extent to which a transverse separation has already occurred, or the residual web is already reliably located in the discharge device, etc.
  • the drive may be a pneumatic drive.
  • the closing element can have a separate drive, wherein here too a pneumatic drive is conceivable.
  • the auxiliary roll can be rotatably mounted on the hopper.
  • the invention may include that the auxiliary roll is rotatably mounted on a housing element, wherein in particular the housing element has the closing element. It can also be provided that the auxiliary roll is moved linearly between said positions. A combination of rotation and linear guide of the auxiliary roll to bring them between the two mentioned positions is also conceivable within the subject invention.
  • the closing element and the auxiliary roll may be combined, so that only one actuator is required for moving into the appropriate position.
  • the housing element may be rotatable and / or movable in the device according to the invention, in particular to move the auxiliary roller and / or the closing element in the desired position.
  • the invention can be developed in such a way that the inlet of the funnel in the direction of the cross-cutting device has an enlarged area that is free of the first roller.
  • a clearance is formed through the enlarged area of the inlet, through which reliable air flow can enter the hopper from outside, without the first roller hindering the flow of air.
  • the enlarged area has been found to be particularly advantageous in the context of the invention, since an automatic removal of the residual web takes place after the cross-cutting via the discharge device.
  • a large air flow passes from the outside through the enlarged area, wherein the air flow reliably detects the transverse separated residual web at the same time.
  • the discharge device has a suction space into which the discharge channels open.
  • the residual webs can be forwarded accordingly, in particular distributed, for example, a processing or To enable recycling of the residual web and / or to enable a targeted disposal of the residual web.
  • the preferred roller extends at least partially out of the funnel, wherein within the funnel a flow is established which flows below the preferred roller.
  • the funnel housing may be formed such that at least partially the preferred roller extends from the funnel.
  • a flow within the funnel sets for example, flows below the preferred roller and has the function of the first air flow.
  • An advantage of this embodiment is that the preferred roller and / or the funnel are easier to mount and / or replace.
  • the cross-cutting device may comprise a cutting blade, which may be formed jagged. It is also conceivable that the cross-cutting device is movable and / or removable independently of the discharge device to the material web. Likewise, the invention comprises that the removal device, including the cross-cutting device, is displaceable from a remote position to the material web, which corresponds, for example, to a continuous operating position, into a closer position to the material web, which represents the cutting position in which the cross-cutting device cuts through the residual web.
  • the cross-cutting device is arranged extendable on the discharge device, in particular on the hopper.
  • the material web can be a plastic film or a web of paper, textile, fleece, aluminum foil, copper foil or the like.
  • the longitudinal cutting device can have natural knife elements, cutting elements or wedges in order to be able to carry out a corresponding longitudinal cut in the longitudinal direction.
  • the longitudinal section through to make a jet of a medium like water.
  • a welding agent such as a laser, comes as a cutting tool in question.
  • these cutting means have the advantage not to wear.
  • they have the disadvantage of high media or energy consumption.
  • the longitudinal section is also conceivable with two mutually running shear rollers.
  • the cross-cutting device which is mounted further downstream than the longitudinal cutting device, may be provided with a control unit.
  • This control unit can calculate the time difference in which the cross cutting device enters the material web.
  • the funnel and / or the preferred roller can be arranged in such a way to the longitudinal cutting device that, as of the longitudinal cutting device, the residual web is separated from the partial web.
  • the invention includes that the feed roller may be arranged in the overall arrangement in such a way that the separation from the longitudinal cutting device results from the position of the feed roller and / or the first roller and / or the second roller.
  • the above object is achieved by a method according to all features of claim 16. It is particularly advantageous that the discharge device ensures that the cross-separated residual web reliably enters the funnel from the outside. All advantages of the device according to the invention can also relate to the inventive method.
  • the cross-cutting of the residual web can be carried out with a time delay to a longitudinal separation of the longitudinal cutting device.
  • a control unit can be used, which activates the longitudinal cutting device and / or the cross-cutting device accordingly.
  • a particularly advantageous embodiment of the invention is that the pressure within the funnel is adjusted by a closing element, which can be brought in particular between a closed position and an open position, wherein in the closed position, an opening of the funnel is closed and opened in the open position, the opening of the funnel is.
  • the closing element take the closed position, in particular when the discharge device reliably dissipates the residual web, the closing element is moved into the open position.
  • a corresponding negative pressure within the funnel is created before the cross-cutting, which is achieved during cross-cutting, that reliably the cross-separated residual web enters the funnel.
  • the closing element can be converted into the open position, whereby an additional air inlet is formed, which can cause, for example, that the residual web reliably separates again from the preferred roller or does not adhere to this.
  • an auxiliary roll may abut against the first roll when the cross-cutting takes place in order to prevent a break in the web of material.
  • Said auxiliary roll can be advantageously brought between two positions, wherein in the first position, the auxiliary roller acts on the first roller and in the second position, the auxiliary roller is spaced from the first roller. When the auxiliary roll is in the second position, there is a uniform pull in the residual web and a reliable separation from the residual web to the partial web.
  • a preferred roller can be arranged within the hopper, which reliably dissipates the residual web.
  • the preferred roller favors the removal of the residual web within the discharge device and a reliable separation, whereby a uniform train in the residual web is effected.
  • the method allows a plurality of residual webs, which are parallel to each other, to be removed simultaneously.
  • a plurality of funnels are provided within the discharge device, wherein in discharge channels the residual webs are passed, which are downstream of the funnels.
  • the residual web is separated from the partial web far in front of the cross-cutting device, in particular the separation of the residual web from the partial web takes place before the removal device.
  • the immediate separation of the residual web from the partial web has the advantage that the residual web with the partial web can not beat each other after a cross-cutting has occurred. Thus, edge defects on the partial web can be effectively prevented.
  • the hopper and / or the preferred roller are arranged in such a way to the longitudinal cutting device, that after the cross cutting from the longitudinal cutting device, the residual web is separated from the partial web.
  • a possible embodiment of a device 1 for automatically cutting a material web 2 is shown.
  • the material web 2 is simplified in the Fig. 2 to 5 shown, which is trimmed by a slitting device 60 and a cross-cutting device 70, which will be discussed below.
  • the device 1 has a discharge device 10, which has a plurality of discharge channels 11, wherein each discharge channel 11 opens into an extraction space 26.
  • a funnel 12 is provided which has an inlet 13 as an opening.
  • a first roller 31 is shown, which is arranged at a distance from a second roller 32.
  • the material web 2 is guided in the longitudinal direction L via the second roller 32 in the direction of the first roller 31 and moved.
  • a longitudinal cutting device 60 which continuously cuts through the material web 2 in at least one partial web 3 and a residual web 4 in the longitudinal direction L.
  • the material web 1 is severed at several points, so that a multiplicity of partial webs 3 and residual webs 4 are formed.
  • the material web 2 may be, for example, a plastic film web which is continuously produced, for example, as a blown or flat film and fed in a longitudinal direction L of the device 1 according to the invention.
  • the longitudinal cutting device 60 may comprise knife elements in order to effect the longitudinal separation just described on the material web 2.
  • a cross-cutting device 70 is provided downstream of the longitudinal cutting device 60, which penetrates in the region of the residual web 4 with a cutting element not explicitly shown. This results in a cut on the residual web 4 transversely to the longitudinal direction L.
  • the fan 50 generates a corresponding negative pressure in the discharge device 10, in particular in the hopper 12, so that after the cross-cutting automatically acting from the outside air flow 5, the residual web 4 into the hopper 12 , The hopper 12 is positioned as close to the first roller 31 as possible to reliably suck the residual web 4 into the hopper 12.
  • the device 1 has a schematically illustrated closing element 14, which is movable between a closed position 21 and an open position 22.
  • the open position 22 is only in Fig. 2b and 5 shown, wherein the closure member 14 according to all figures also in such positions 21, 22 can be transferred.
  • the closing element 14 is shown in the closed position 21.
  • the funnel 12 has an opening 19 which can be closed or opened by the closing element 14.
  • the discharge device 10 has according to Fig. 2 an auxiliary roller 15 which is slidable and / or pivotable between two positions 23, 24, wherein in the first position 23, the auxiliary roller 15 abuts the first roller 31, and in the second position 24, the auxiliary roller 15 spaced from the first roller 31 , Before the cross-cutting takes place via the cross-cutting device 70, a longitudinal cut first takes place via the longitudinal cutting device 60, the auxiliary roller 15 acting on the first roller 31, which acts in FIG Fig. 2a is shown.
  • the advantage is that, when the auxiliary roller 15 abuts against the first roller 31, an interruption of the train in the material web 2, in particular in the region of the longitudinal cutting device 60, is prevented.
  • the removal device 10 ensures, after the cross-cutting, that the residual web 4 is reliably sucked into the hopper 12. If a reliable removal of the residual web 4 in the discharge device 10, the auxiliary roller 15 moves from the first position 23 (FIG. Fig. 2a ) to the second position 24 ( Fig. 2b ).
  • the device 1 has a preferred roller 16, which is arranged within the respective funnel 12.
  • the preferred roller 16 penetrates all of the hoppers 12 arranged adjacent to one another, the preferred roller 16 rotating about the axis 80 while the device 1 is in operation.
  • the preferred roller 16 rotates clockwise and causes an improved removal of the residual web 4 in the direction of the discharge channel 11, in particular in the direction of the suction chamber 26 a first air flow 17, which flows below the preferred roller 16, and a second air flow 18, which flows above the preferred roller 16.
  • the first air flow 17 favors that the residual web 4 is reliably guided to the preferred roller 16 and then the residual web 4 is reliably transported in the direction of discharge channel 11.
  • the second air flow 18, which flows above the preferred roller 16, causes the residual web 4 to reliably detach from the preferred roller 16 again and thus no adhesion effects of the residual web 4 on the preferred roller 16 arise.
  • the auxiliary roller 15 is rotatably mounted on the hopper 12.
  • the auxiliary roller 15 is arranged on a housing element 20 which is pivotable about an axis 81.
  • the auxiliary roll 15 is simultaneously rotatable about the axis 84.
  • the movement of the housing element 20 can take place via a drive, in particular an electric or pneumatic drive, which is explicitly not shown. It is also conceivable that the auxiliary roller 15 can be moved linearly between its two positions 23, 24.
  • auxiliary roller 15 is arranged on the auxiliary roller 15, in particular on the housing element 20 or integrated with.
  • the auxiliary roller 15 is moved between its two positions 23, 24, there is simultaneously a co-movement of the closing element 14 in its closed position 21 or in the open position 22.
  • the auxiliary roller 15 is in operative connection with the closing element fourteenth
  • the inlet 13 of the hopper 12 in the direction of the cross-cutting device 70 has an enlarged area 25 which is free of the first roller 31.
  • the enlarged area 25 favors that a large air flow 5 can penetrate from inside into the funnel housing 27, which at the same time can push the transverse separated web 4 into the funnel 12.
  • FIG. 3 clarifies that it is off without the auxiliary roller 15 Fig. 2 can get along, with all the features off Fig. 2a and Fig. 2b also in the embodiment of Fig. 3 are included.
  • Fig. 3 corresponds to Fig. 4 essentially in accordance with the exemplary embodiment Fig. 2 , wherein the funnel housing 27 is designed differently, so that at least partially the preferred roller 16 extends from the hopper 12. According to Fig. 4 only results in a first air flow 17, which flows below the feed roller 16.
  • the embodiment acc. Fig. 4 shows how Fig. 3 a preferred roller 16, wherein it is also conceivable, the embodiment according to Fig. 4 with the preferred roller 16 according to Fig. 2a and Fig. 2b to combine.
  • the embodiment according to Fig. 5 essentially corresponds to the embodiment according to Fig. 2a and Fig. 2b , wherein the embodiment according to Fig. 5 without advantage roller 16 and without auxiliary roller 15 manages.
  • the remaining features of the embodiment according to Fig. 5 correspond to the explanations of the previously described Fig. 2 to Fig. 4 ,
  • the transverse separation of the residual web 4 takes place with a time delay to a longitudinal separation of the longitudinal cutting device 60.
  • the pressure within the funnel 12 can be adjusted inter alia by the closing element 14, which is movable between the closed position 21 and the open position 22. Before the cross-cutting of the residual web 4, the closing element 14 assumes the closed position 21. If after a defined time a reliable removal of the residual web 4 via the discharge device 10, the closing element 14 is transferred to the open position 22, whereby an assisting compensation air flow flows through the opening 19 in the hopper 12. Among other things, this compensation air flow can cause these to flow into the second Air flow 18 passes, or improved flow effects within the funnel 12 triggers.
  • the discharge channels 11 are mutually displaceable in the longitudinal direction of the axis of rotation of the first roller 31, so that the distance between the discharge channels 11 is adjustable.
  • the material web 2, which is transported via the rollers 31, 32, can be cut in various ways, wherein at the edge of the material web 2 residual webs 4 are formed, which can also be referred to as edge strips.
  • Narrower funnels 12 are provided in the middle of the widened funnels 12 in order to suck off residual webs 4, which are narrower. These narrower residual webs 4 can also be referred to as central stripe.
  • each funnel 12 has an opening 28 through which the preferred roller 16 extends, the geometry of the opening 28 substantially corresponding to the geometry of the preferred roller 16.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Details Of Cutting Devices (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (23)

  1. Dispositif (1) de coupe automatique d'une bande de matière (2), avec un dispositif de coupe longitudinale (60) au moyen duquel la bande de matière (2) peut être découpée dans une direction longitudinale (L) en au moins une bande partielle (3) et en au moins une bande résiduelle (4), avec un dispositif d'évacuation (10) destiné à l'évacuation automatique de la bande résiduelle (4) produite, avec un dispositif de coupe transversale (70) monté en aval du dispositif de coupe longitudinale (60) pour la découpe de la bande résiduelle (4) transversalement à la direction longitudinale (L),
    le dispositif d'évacuation (10) comportant au moins un entonnoir (12) qui est formé avec une entrée (13) pour évacuer la bande résiduelle (4),
    caractérisé en ce que,
    à l'intérieur de l'entonnoir (12), il est disposé un cylindre d'avance (16) pour améliorer l'évacuation de la bande résiduelle (4).
  2. Dispositif (1) selon la revendication 1,
    caractérisé en ce que
    le cylindre d'avance (16) est disposé de façon rotative à l'intérieur de l'entonnoir (12) de telle sorte qu'il se forme un premier écoulement d'air (17) qui s'écoule au-dessous du cylindre d'avance (16) et un deuxième écoulement d'air (18) qui s'écoule au-dessus du cylindre d'avance (16).
  3. Dispositif (1) de coupe automatique d'une bande de matière (2), avec un dispositif de coupe longitudinale (60) au moyen duquel la bande de matière (2) peut être découpée dans une direction longitudinale (L) en au moins une bande partielle (3) et en au moins une bande résiduelle (4), avec un dispositif d'évacuation (10) destiné à l'évacuation automatique de la bande résiduelle (4) produite, avec un dispositif de coupe transversale (70) monté en aval du dispositif de coupe longitudinale (60) pour la découpe de la bande résiduelle (4) transversalement à la direction longitudinale (L),
    le dispositif d'évacuation (10) comportant au moins un entonnoir (12) qui est constitué avec une entrée (13) pour évacuer la bande résiduelle (4),
    caractérisé en ce que
    le cylindre d'avance (16) s'étend partiellement à partir de l'entonnoir (12), un écoulement (17) s'installant à l'intérieur de l'entonnoir (12) et s'écoulant au-dessous du cylindre d'avance (16).
  4. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce
    qu'une séparation entre la bande résiduelle (4) et la bande partielle (3) s'effectue loin en amont du dispositif de coupe transversale (70).
  5. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif d'évacuation (10) comporte plusieurs canaux d'évacuation (11) pour aspirer plusieurs bandes résiduelles (4), en particulier en ce que la position des canaux d'évacuation (11) par rapport à la bande de matière (2) peut être modifiée.
  6. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif d'évacuation (10) peut être positionné sur un premier cylindre (31) qui assure un transport de la bande de matière (2), la géométrie de l'entonnoir (12) étant en particulier adaptée dans la zone de l'entrée (13) au moins partiellement à la géométrie du premier cylindre (31).
  7. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce
    qu'il est prévu au moins un élément de fermeture (14) qui peut être conduit à commuter entre une position de fermeture (21) et une position d'ouverture (22), une ouverture (19) de l'entonnoir (12) étant fermée dans la position de fermeture (21), et l'ouverture (19) de l'entonnoir (12) étant ouverte dans la position d'ouverture (22).
  8. Dispositif (1) selon la revendication 6 ou 7,
    caractérisé en ce que,
    le dispositif de coupe transversale (70) est disposé dans la zone de l'entrée (13) en aval du premier cylindre (31).
  9. Dispositif (1) selon la revendication 6, 7 ou 8,
    caractérisé en ce que
    le dispositif d'évacuation (10) comporte au moins un cylindre auxiliaire (15) qui peut être amené à commuter entre deux positions (23, 24), le cylindre auxiliaire (15) agissant sur le premier cylindre (31) dans la première position (23), et le cylindre auxiliaire (15) étant à distance du premier cylindre (31) dans la deuxième position (24) .
  10. Dispositif (1) selon la revendication 9,
    caractérisé en ce que
    le cylindre auxiliaire (15) est supporté de façon rotative et/ou coulissante sur l'entonnoir (12).
  11. Dispositif (1) selon la revendication 9 ou 10,
    caractérisé en ce que
    le cylindre auxiliaire (15) est supporté de façon rotative sur un élément de carter (20), l'élément de carter (20) comportant en particulier l'élément de fermeture (14).
  12. Dispositif (1) selon l'une des revendications précédentes 6 à 11,
    caractérisé en ce que
    l'entrée (13) de l'entonnoir (12) comporte, en direction du dispositif de coupe transversale (70), une zone agrandie (25) qui est exempte du premier cylindre (31).
  13. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif d'évacuation (10) comporte un espace d'aspiration (26) dans lequel débouchent les canaux d'évacuation (11).
  14. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le cylindre d'avance (16) s'étend à travers une multiplicité d'entonnoirs (12) disposés au voisinage les uns des autres, chaque entonnoir (12) comportant en particulier une traversée (28).
  15. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    l'entonnoir (12) et/ou le cylindre d'avance (16) sont disposés de telle sorte par rapport au dispositif de coupe longitudinale (60) que la bande résiduelle (4) est séparée de la bande partielle (3) à partir du dispositif de coupe longitudinale (60).
  16. Procédé de fonctionnement d'un dispositif (1) selon l'une des revendications 1 à 15 pour la découpe automatique d'une bande de matière (2), avec
    un dispositif d'évacuation (10) qui est positionné sur un premier cylindre (31) transportant la bande de matière (2),
    un dispositif de coupe longitudinale (60) monté en amont du premier cylindre (31) et au moyen duquel la bande de matière (2) est découpée dans une direction longitudinale (L) en au moins une bande partielle (3) et en au moins une bande résiduelle (4),
    un dispositif de coupe transversale (70) monté en aval du dispositif de coupe longitudinale (60) et qui découpe la bande résiduelle (4) transversalement à la direction longitudinale (L),
    le dispositif d'évacuation (10) comportant des entonnoirs (12) avec respectivement une entrée (13) tournée vers le premier cylindre (31) et à travers laquelle la bande résiduelle (4) parvient dans le dispositif d'évacuation (10),
    l'entrée (13) de l'entonnoir (12) comportant une zone agrandie (25) qui est exempte du premier cylindre (31) de telle sorte qu'une situation de pression s'installe à l'intérieur de l'entonnoir (12), ce qui, après une découpe transversale de la bande résiduelle (4) par le dispositif de coupe transversale (70), provoque une évacuation automatique de la bande résiduelle (4) dans le dispositif d'évacuation (10).
  17. Procédé selon la revendication 16,
    caractérisé en ce que
    la découpe transversale de la bande résiduelle (4) s'effectue de façon temporellement décalée par rapport à une découpe longitudinale du dispositif de coupe longitudinale (60).
  18. Procédé selon la revendication 16 ou 17,
    caractérisé en ce que
    la pression (50) à l'intérieur de l'entonnoir (12) est réglée par un élément de fermeture (14) qui peut en particulier être amené à commuter entre une position de fermeture (21) et une position d'ouverture (22), une ouverture (19) de l'entonnoir (12) étant fermée dans la position de fermeture (21), et l'ouverture (19) de l'entonnoir (12) étant ouverte dans la position d'ouverture (22).
  19. Procédé selon la revendication 16, 17 ou 18,
    caractérisé en ce que,
    avant la découpe transversale de la bande résiduelle (4), l'élément de fermeture (14) occupe la position de fermeture (21), en particulier quand le dispositif d'évacuation (10) évacue de façon fiable la bande résiduelle (4), l'élément de fermeture (14) est déplacé dans la position d'ouverture (22).
  20. Procédé selon la revendication 16, 17, 18 ou 19,
    caractérisé en ce
    qu'un cylindre auxiliaire (15) est adjacent au premier cylindre (31) quand la découpe transversale est effectuée pour empêcher une interruption de traction dans la bande de matière (2) .
  21. Procédé selon la revendication 16, 17, 18, 19 ou 20,
    caractérisé en ce que,
    à l'intérieur de l'entonnoir (12), il est disposé un cylindre d'avance (16) qui évacue de façon fiable la bande résiduelle (4).
  22. Procédé selon la revendication 16, 17, 18, 19, 20 ou 21
    caractérisé en ce que
    l'entonnoir (12) et/ou le cylindre d'avance (16) sont disposés par rapport au dispositif de coupe longitudinale (60) de telle sorte que, après la découpe transversale, la bande résiduelle (4) est séparée de la bande partielle (3) à partir du dispositif de coupe longitudinale (60).
  23. Procédé selon la revendication 16, 17, 18, 19, 20, 21 ou 22,
    caractérisé en ce
    qu'une séparation entre la bande résiduelle (4) et la bande partielle (3) s'effectue loin en amont du dispositif de coupe transversale (70), en particulier la séparation entre la bande résiduelle (4) et la bande partielle (3) s'effectue en amont du dispositif d'évacuation (10).
EP14814862.0A 2014-02-27 2014-12-17 Dispositif de découpe automatique et d'évacuation d'une bande de matière et procédé associé Active EP3083463B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19157477.1A EP3514090B1 (fr) 2014-02-27 2014-12-17 Dispositif de coupe et d'enlèvement automatiques d'une bande de matière ainsi que procédé correspondant doté d'un rouleau auxiliaire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014102604.7A DE102014102604A1 (de) 2014-02-27 2014-02-27 Vorrichtung zum automatischen Schneiden und Abführen einer Materialbahn sowie Verfahren hierzu
PCT/EP2014/078291 WO2015128025A1 (fr) 2014-02-27 2014-12-17 Dispositif de découpe automatique et d'évacuation d'une bande de matière et procédé associé

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP19157477.1A Division EP3514090B1 (fr) 2014-02-27 2014-12-17 Dispositif de coupe et d'enlèvement automatiques d'une bande de matière ainsi que procédé correspondant doté d'un rouleau auxiliaire
EP18193101.5 Division-Into 2018-09-07

Publications (2)

Publication Number Publication Date
EP3083463A1 EP3083463A1 (fr) 2016-10-26
EP3083463B1 true EP3083463B1 (fr) 2019-02-27

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EP14814862.0A Active EP3083463B1 (fr) 2014-02-27 2014-12-17 Dispositif de découpe automatique et d'évacuation d'une bande de matière et procédé associé
EP19157477.1A Active EP3514090B1 (fr) 2014-02-27 2014-12-17 Dispositif de coupe et d'enlèvement automatiques d'une bande de matière ainsi que procédé correspondant doté d'un rouleau auxiliaire

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Country Status (5)

Country Link
US (2) US10654676B2 (fr)
EP (2) EP3083463B1 (fr)
CN (1) CN106029537B (fr)
DE (1) DE102014102604A1 (fr)
WO (1) WO2015128025A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102014102605A1 (de) * 2014-02-27 2015-08-27 Windmöller & Hölscher Kg Absaugstutzen für eine Absaugvorrichtung

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DE8207236U1 (de) * 1982-03-15 1982-07-22 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Vorrichtung zum absaugen der von materialbahnen abgeschnittenen randstreifen, insbesondere von durch laengsschneide- und rillmaschinen abgeschnittenen randstreifen einer wellpappenbahn
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Also Published As

Publication number Publication date
EP3514090B1 (fr) 2021-01-20
WO2015128025A1 (fr) 2015-09-03
EP3083463A1 (fr) 2016-10-26
US20160362271A1 (en) 2016-12-15
CN106029537B (zh) 2018-06-22
EP3514090A1 (fr) 2019-07-24
CN106029537A (zh) 2016-10-12
DE102014102604A1 (de) 2015-08-27
US20200115179A1 (en) 2020-04-16
US10654676B2 (en) 2020-05-19
US11292685B2 (en) 2022-04-05

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