EP3737630A1 - Arrangement pour découper une bande de matière en feuilles individuelles avec un accumulateur de bande - Google Patents

Arrangement pour découper une bande de matière en feuilles individuelles avec un accumulateur de bande

Info

Publication number
EP3737630A1
EP3737630A1 EP20707356.0A EP20707356A EP3737630A1 EP 3737630 A1 EP3737630 A1 EP 3737630A1 EP 20707356 A EP20707356 A EP 20707356A EP 3737630 A1 EP3737630 A1 EP 3737630A1
Authority
EP
European Patent Office
Prior art keywords
web
sheets
material web
cross
store
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
Application number
EP20707356.0A
Other languages
German (de)
English (en)
Other versions
EP3737630B1 (fr
Inventor
Andreas Schilling
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.)
BW Papersystems Stuttgart GmbH
Original Assignee
BW Papersystems Stuttgart GmbH
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 BW Papersystems Stuttgart GmbH filed Critical BW Papersystems Stuttgart GmbH
Publication of EP3737630A1 publication Critical patent/EP3737630A1/fr
Application granted granted Critical
Publication of EP3737630B1 publication Critical patent/EP3737630B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • B65H35/08—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 from or with revolving, e.g. cylinder, cutters or perforators
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/38—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
    • B26D1/385—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member for thin material, e.g. for sheets, strips or the like
    • 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
    • B65H20/30—Arrangements for accumulating surplus web
    • B65H20/32—Arrangements for accumulating surplus web by making loops
    • B65H20/34—Arrangements for accumulating surplus web by making loops with rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
    • B65H29/6618—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed
    • B65H29/6636—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed in combination with auxiliary means for underlapping articles
    • 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
    • B65H2301/5153—Details of cutting means
    • B65H2301/51532—Blade cutter, e.g. single blade cutter
    • B65H2301/515323—Blade cutter, e.g. single blade cutter rotary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B65H2404/143—Roller pairs driving roller and idler roller arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/21—Accumulators
    • B65H2408/217—Accumulators of rollers type, e.g. with at least one fixed and one movable roller
    • B65H2408/2171—Accumulators of rollers type, e.g. with at least one fixed and one movable roller the position of the movable roller(s), i.e. the web loop, being positively actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B65H2511/112—Length of a loop, e.g. a free loop or a loop of dancer rollers
    • 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
    • B65H2601/321—Access
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the invention relates to a device, in particular roll sheeters, further in particular for the formation of an imbricated flow of under- or overlapping sheets, in particular sheets of paper or cardboard, with a cross-cutting device for cutting a web of material into individual sheets and with a web storage device upstream of the cross-cutting device along the web transport path for Storing and / or providing a web of material, the web of material being fed to the web store from a web unwind.
  • a corresponding device is known, for example, from WO 2018/229201 A1.
  • sheets of paper or cardboard can be provided as quasi-endless webs of material in the form of a paper roll from the web unwind.
  • the material web is fed to a cross-cutting device with the aid of a feed device with rollers or cylinders, where it is cut into sheets of a defined length.
  • the cut sheets are fed to a shingling device with the aid of conveyor belts to form an underlap of the sheets.
  • the imbricated stream formed in this way can then be fed to a further processing machine, for example a printing machine.
  • the printing press specifies the point in time at which a sheet must be made available with its leading edge at a transfer point of the printing press.
  • the shingling device and the cross-cutting device must therefore run synchronously with the printing press in order to ensure the timely provision of the sheets in time with the printing press.
  • the shingling device and the cross-cutting device In the event of a system stop, for example to change the paper roll, the printing press, the shingling device and the cross-cutting device must be braked or stopped synchronously. Due to the inertia of the paper roll, however, the unwinding of the web cannot be braked as quickly as the shingling device and the cross-cutting device.
  • the web unwind Due to the slower braking of the web unwind, the web unwind provides further material web until it comes to a standstill.
  • the material web provided in excess must be picked up by the device in a controlled manner in order to avoid damage to the material web and / or winding errors when the printing press is restarted.
  • a web memory is provided in order to be able to safely record or store a certain web length of the paper.
  • the web store disclosed in WO 2018/229201 A1 has vertically running web loops.
  • a track loop is formed between two horizontally arranged, stationary deflecting rollers and a deflecting roller that can be moved in the vertical direction relative to the stationary deflecting rollers.
  • the material web wraps around the stationary deflecting rollers at least in sections and wraps around the movable deflecting roller essentially by 180 °.
  • the length of the track loop corresponds to the distance between the movable deflection roller and the plane formed by the axes of rotation of the fixed deflection rollers.
  • the movable deflection roller When the roll cross cutter is in operation, the movable deflection roller is in a basic position in which no web material or only a short length of material web is stored. When the roll cross cutter is braked, the movable deflection roller is moved vertically in such a way that the length of the web loop is increased.
  • the supply of unwinding material web taken up by the movable deflection roller is dimensioned in such a way that the part of the material web made available in excess by the web unwinding is taken up by the web store.
  • the movable deflection roller can be brought into a maximum storage position, which defines a maximum distance of the movable deflection roller perpendicular to the plane formed by the axes of rotation of the fixed deflection rollers.
  • the vertical distance between the basic position and the maximum storage position is also referred to as the maximum storage distance of the movable deflection roller.
  • the storage section thus determines the length of a web loop formed, depending on the location of the basic position.
  • the length of the track loop can essentially correspond to twice the storage section.
  • the web store shown in WO 2018/229201 A1 has two mutually movable and three fixed pulleys. Accordingly, two identical web loops are formed in the web store and the length of the stored material web corresponds to four times the length of the storage path.
  • the use of a web memory therefore makes it possible to stop and / or start up a material web processing unit connected in series with a time delay. In this way, gentle braking and / or acceleration of individual devices and / or devices can be implemented. Temporary different speeds of successive processing devices and / or assemblies of material web processing can also be compensated for with a web memory.
  • web stores can be used in many ways, for example also to enable continuous operation during a splicing process of the material web.
  • the disadvantage of the aforementioned web store is the additional and large area requirement.
  • a sufficiently large installation space must be made available for the web store between the web unwind and the cross-cutting device.
  • web memories are built rather very high, so that the machine operator's overview of the system and in particular the machine operator's view of the web unwind is considerably impaired.
  • maintenance work is associated with great effort due to the height of the web store, since access to the upper area of the web store is only possible by means of ladders and / or lifting devices.
  • the object of the present invention is to provide a cross-cutting device of the type mentioned at the outset, which is characterized by a compact and space-saving structure.
  • the accessibility to all facilities of the device, in particular to the web store, for example for maintenance and repair work, is to be improved.
  • the clarity for the machine operator should be increased.
  • the web store for storing the material web is not arranged laterally between the cross-cutting device and the web unwind, but in the area of the cross-cutting device below the running height of the sheets.
  • the term “Running height of the sheets” refers in the sense of the present invention to the height of the transport plane of the material web cut into sheets in the device according to the invention after it has passed the cross-cutting device.
  • the arrangement of the web storage below the cross-cutting device and below the functional units following in the sheet transport direction allows the overall length of the device to be reduced with improved accessibility for a machine operator to the functional units of the device, for example for maintenance and repair work , and an improved overview for the machine operator.
  • the system boundary of the term "web storage” in the sense of the invention preferably only includes the fixed pulleys provided for forming web loops and the at least one movable pulley that interacts with them, as well as possibly further functional units such as a drive and / or a control for the movable pulley.
  • the system boundary of the “web storage” functional unit can include an area of the transport path of the material web that begins in front of a first fixed deflecting roller intended to form a web loop and ends after a last fixed deflecting roller intended to form a web loop.
  • the system boundary does not include further deflection rollers, which are provided for feeding or continuing the material strip from the web unwind to the first fixed deflection roller and / or for removing the material strip from the last fixed deflection roller in the direction of a material web feed in front of the cross-cutting device.
  • the web store forms at least one web loop, preferably two web loops, for storing the web of material.
  • the length of the track loop can be changed by changing the position of a movable deflection roller relative to a stationary deflection roller.
  • the material web running down from the web unwind is preferably guided via a fixed deflection roller to a movable deflection roller and on to a further fixed deflection roller.
  • the fixed deflecting rollers can be arranged next to one another at a distance that essentially corresponds to the diameter of the movable deflecting roller.
  • the material web wraps around the stationary deflection rollers at least in sections and preferably wraps around the movable deflection roller Essentially by 180 °.
  • the movable deflection roller can be moved perpendicular to the plane that is formed by the axes of rotation of the fixed deflection rollers.
  • the total length of a web loop preferably corresponds essentially to the distance between a first fixed deflecting roller and an immediately following movable deflecting roller and the distance between the movable deflecting roller and an immediately following second fixed deflecting roller.
  • the web store it is also possible for the web store to have several movable deflecting rollers and several fixed deflecting rollers.
  • the web store is designed to store the web of material essentially horizontally.
  • the term “horizontal storage” is to be understood as meaning that the at least one path loop for storing the material web runs essentially in the horizontal direction.
  • the invention also includes a slight inclination of the web loop formed to the horizontal, which can be advantageous in order to optimally utilize the installation space below the running height of the arches.
  • the movable deflection roller is then moved essentially in the horizontal direction in order to change the length of a web loop of the web store. Compared to a vertical design of the web loop, the height of the web store and thus also the height of the entire device can be significantly reduced.
  • this arrangement of the web store results in a compact design and a reduced space requirement for the device.
  • the lower overall height of the device improves the clarity for the operator, in particular the view of the web unwind. Simple access to all components or functional units of the web store, especially for repair and / or maintenance work, can thus be ensured in a simple manner.
  • the stationary deflection rollers of the web store are preferably arranged vertically one above the other.
  • the material web can be vertically fed to or removed from the web store or the first and the last fixed deflecting roller involved in web loop formation.
  • a shingling device downstream of the cross-cutting device in the transport direction of the sheets is for sub-cutting or cutting in certain areas Overlapping of the arches provided.
  • the web store is preferably arranged below the “cross-cutting” and “flaking” functional units and, if necessary, further subsequent functional units.
  • the material web is then stored in any case below the running height of the sheets or below the transport path of the sheets in relation to the area between the cross-cutting device and the shingling device.
  • the maximum length of a storage section of the web store i.e. the maximum distance between a basic position of a movable deflection roller and its maximum storage position, in which the length of the web loop is maximum, can essentially correspond to the distance between the cross-cutting device and the shingling device.
  • a braking device downstream of the shingling device in the transport direction of the sheets is provided for braking scaled sheets, in particular by forming a brake gap for the passage of sheets that are brought together in shingled form.
  • the web store is preferably arranged below the “cross-cutting”, “shingling” and “braking” functional units and, if applicable, further subsequent functional units.
  • the material web is then stored in any case below the running height of the sheets or below the transport path of the sheets in relation to the area between the cross-cutting device and the braking device or even beyond.
  • the maximum length of a storage section of the web store i.e.
  • the maximum distance between a basic position of a movable deflection roller and its maximum storage position, in which the length of the web loop is maximum can essentially correspond to the distance between the cross-cutting device and the braking device.
  • the deflecting rollers of the web store it is possible, if necessary, to extend the web loops below the running height of the sheets into an area downstream of the braking device in the transport direction of the sheets.
  • a material web feed is provided upstream of the cross-cutting device in the transport direction of the material web for the driven feeding of the material web from the web store to the cross-cutting device.
  • the web store can then also be arranged below the feed height of the material web for the material web feed.
  • the maximum storage distance of the web storage i.e. the maximum distance between a basic position of a movable deflection roller and its maximum Storage position in which the length of the web loop is at its maximum can thus be extended beyond the position of the cross-cutting device into the area of the material web feed or even beyond it in the direction of the web unwinding.
  • the maximum length of a storage section can essentially correspond to the distance between the material web feed and the braking device.
  • the storage device has at least two fixed deflecting rollers, the fixed deflecting rollers preferably being arranged between the cross-cutting device and the web unwind, preferably in the area between the material web intake and the web unwind below the running height of the sheets.
  • the area between the material web feed and the web unwind is to be understood as the space which is delimited in the horizontal direction by a first vertical plane through the material web feed and a second vertical plane through the web unwind.
  • the first vertical plane through the material web intake is defined by the axis of the driving material roller of the material web intake.
  • the second vertical plane is defined by the rotation axis of the web unwind.
  • the stationary deflection rollers can be arranged between the cross-cutting device and the web unwind, preferably between the material web feed and the web unwind.
  • the stationary pulleys are vertically spaced from one another and preferably arranged vertically one above the other. In this way, the space available for the web storage can be used optimally.
  • the web store has at least one, preferably at least two, more preferably jointly, horizontally movable deflection rollers, wherein the movable deflection roller can be adjusted to a threading position in the direction of web unwinding, which is laterally of the fixed deflection rollers in the area between the fixed deflection rollers and the web unwind is.
  • the movable deflection roller When the movable deflection roller has reached the threading position, it is possible to feed the material web - without the formation of web loops - directly between the fixed deflection rollers and the at least one movable deflection roller in the manner of a bypass, preferably vertically upwards to the material web feed. More preferably, the web of material can be carried out essentially linearly, that is to say without substantial deflection, between the stationary deflection rollers and the at least one movable deflection roller.
  • a web storage is preferably not provided if the movable deflection roller is in the Threading position. A web storage is only possible when the movable deflection roller is moved relative to the stationary deflection rollers in the direction away from the threading position.
  • a drive is preferably provided for moving the movable deflection roller in the web store.
  • a common drive is also preferably provided for a plurality of movable deflection rollers.
  • the movable deflection rollers are then preferably moved together, that is to say simultaneously.
  • the movable deflection rollers can alternatively or additionally also be designed to be manually adjustable or displaceable.
  • the movable deflection roller is horizontal within the web store from the basic position to the maximum store position over a length of at least 500 mm to at most 5,000 mm, preferably from at least 1,000 mm to at most 3,500 mm, preferably from 2,000 mm proceed.
  • the movable deflection roller can be moved depending on the roller diameter of the web unwind and / or the conveying speed of the material web.
  • the maximum storage position of a movable deflection roller is preferably reached in the horizontal direction in the area between the cross-cutting device and the braking device, more preferably in the area between the shingling device and the braking device.
  • a maximum storage position is particularly preferably achieved when the movable deflection roller lies vertically below the braking device.
  • the web store has at least one horizontally movable dancer pulley for influencing the material tension, the dancer pulley preferably being provided along the web transport path in the area between two movable pulleys of the web store.
  • the dancer pulley can cause fluctuations in the web tension balance.
  • the dancer pulley forms a web loop in the material web.
  • Web tension is compensated for by the dancer pulley making small lifting movements, which slightly increases or decreases the length of the web transport path. If the web tension is too low, the dancer deflection roller is moved in such a way that the web transport path is lengthened. Conversely, if the web tension is increased, the length of the web transport path is reduced by an opposite stroke movement of the dancer deflection roller.
  • the regulation of the web tension can be integrated into the web memory. This eliminates the need to provide a separate device for regulating the tension of the material web.
  • the compensatory movements of the dancer pulley can be actively regulated.
  • the dancer pulley itself can serve as a measuring element.
  • a separate web tension measuring roller can be used to measure the web tension, which is then only used to measure the web tension.
  • the dancer pulley is preferably moved with the aid of a hydraulic cylinder.
  • the web store preferably has a first fixed deflecting roller along the web transport path.
  • the material web can then be guided around a first movable deflection roller with the formation of a first web loop.
  • the deflection roller following along the web transport path is then preferably designed as a dancer deflection roller.
  • the material web can then be guided around a second movable deflection roller to form a second path loop, before the material web can be guided over a second fixed deflection roller and can leave the web store. In this way, two web loops can be formed in the web store and the maximum length of the stored material web corresponds to four times the length of the maximum storage path.
  • the dancer pulley is preferably designed to be movable over a distance of at least 50 mm to at most 500 mm, preferably of at least 10 mm to at most 350 mm, preferably of 250 mm.
  • the lengths of the aforementioned Travel paths have proven to be particularly suitable for regulating the web tension.
  • the web store and, preferably, together with the cross-cutting device and the shingling device, is mounted on a chassis which is designed to be movable relative to the web unwind laterally, preferably perpendicularly, to the transport direction of the sheets.
  • the material web feed and / or the braking device and / or a transport device for the material web and / or the sheets with at least one transport roller and / or a conveyor belt and possibly further components and assemblies can also be arranged on the common chassis.
  • the chassis can be mounted on rollers and / or rails. The chassis, which can be moved laterally relative to the web unwind, ensures good accessibility for maintenance and / or repair work on the equipment mounted on the chassis.
  • chassis can be exchanged together with the track storage device and further components and assemblies stored on the chassis for another chassis with a different track storage device and possibly further other components and assemblies.
  • FIG. 1 shows a schematic representation of a device according to the invention for cutting a web of material into individual sheets with a web store in a side view
  • FIG. 2 shows a schematic representation of the web store shown in FIG. 1, which is arranged on a chassis, with movable deflection rollers of the web store are in a basic position and
  • FIG. 3 shows a schematic illustration of the web store arranged on the chassis in FIG. 1, the movable deflection rollers being in a maximum storage position.
  • a device 1 according to the invention for cutting a material web 2 into individual sheets 3 of paper or cardboard is shown schematically.
  • the device 1 has a web unwind 4, which a quasi-endless material web 2 from a
  • Paper roll 5 provides.
  • the material web 2 is provided by the web unwind 4 and can initially be conveyed over a plurality of deflection rollers 22.
  • FIG. 1 it is shown that by adjusting the deflection rollers 22 different web transport paths can be implemented from the web unwind 4 with different lengths to the following functional units.
  • the material web 2 After passing through two stationary deflection rollers 22, the material web 2 can be pulled over a breaking tool 6 in order to compensate for curvatures that may be caused by the rolled-up storage of the material web 2 on a paper roll 5.
  • a web storage device 7 is provided through which the material web 2 runs.
  • a preferred system limit of the “web memory” functional unit is shown schematically in FIG. 1 as a dashed line.
  • a material web feed 8, which serves to drive the material web 2 is arranged downstream of the web store 7 along the web transport path.
  • the material web 2 is then guided to a cross-cutting device 9, on which the material web 2 is cut into sheets 3.
  • a shingling device 11 is arranged downstream of the cross-cutting device 9, with which an overlapping shingled flow is generated.
  • a braking device 12 is in the transport direction 10 of the sheets 3 are provided behind the shingling device 11, wherein the braking device 12 can be formed, for example, by nip rollers. This is already described, for example, in WO 2018/229201 A1.
  • the disclosure content of WO 2018/229201 A1 is fully incorporated into the disclosure content of the present description.
  • the web store 7 is arranged together with the material web feed 8, the cross-cutting device 9, the shingling device 11 and the braking device 12 on a chassis 13 shown schematically.
  • the chassis 13 is mounted on rollers 14 and can be displaced transversely to the transport direction 10 of the sheets 3 relative to the web unwind 4.
  • the chassis 13 can be moved out of the processing line transversely to the transport direction 10 of the sheets 3.
  • the chassis 13 can also be guided on rails, not shown. Further components and assemblies, such as, for example, the breaking tool 6, can also be arranged on the chassis 13 and can be moved laterally together with it.
  • the web store 7 is aligned horizontally and is arranged below the sheet transport plane of the sheets 3 in the area between the material web feed 8 and the braking device 12.
  • the material web 2 can be fed to the web store 7 in the vertical direction.
  • the material web 2 is guided over a first stationary deflecting roller 15 as a component of the web store 7 and around a first movable deflecting roller 17 while forming a web loop 16.
  • the deflection roller following along the web transport path is designed as a dancer deflection roller 18.
  • the material web 2 is then guided around a second movable deflecting roller 20 to a second stationary deflecting roller 21 in order to form a second web loop 19.
  • the material web 2 then leaves the web store 7 in the vertical direction and is deflected to the material web infeed 8 by a further deflection roller 22, which lies outside the system limit of the web store 7.
  • the two movable deflection rollers 17, 20 can be moved together in the horizontal direction by means of a drive 23.
  • the movable deflection rollers 17, 20 can move in the direction of the web unwind 4 and in a Threading position 24 are brought (position shown in dashed lines in Fig. 1). In the threading position 24, the horizontal distance between the movable deflection rollers 17, 20 and the web unwind 4 is less than the distance between the fixed deflection rollers 15, 21 and the web unwind 4.
  • the material web 2 When changing the paper roll 5, the material web 2 can then easily be vertically Direction linear between the fixed pulleys 15, 21 and the movable pulleys 17, 20 are carried out. This eliminates the laborious manual looping around the movable deflection rollers 17, 21 to form the web loops 16, 19.
  • the movable deflection rollers 17, 20 can be brought into a so-called basic position 25 in the transport direction 10 of the sheets 3 are, in which no web material or only a small length of the material web 2 is stored or held in the web memory 7.
  • 2 shows the chassis 13 with the web store 7, the movable deflection rollers 17, 20 being in the basic position 25.
  • the basic position 25 can, as shown in FIG. 2, lie in the vertical and / or in the horizontal direction in the area between the stationary deflecting rollers 15, 21. Alternatively, the basic position 25 can also lie laterally in the transport direction 10 of the sheets 3 next to the stationary deflecting rollers 15, 21.
  • FIG. 3 the chassis 13 with the web store 7 is shown, the movable deflection rollers 17, 20 being in a storage position 26.
  • the storage position 26 marks the maximum travel position of the movable deflection rollers 17, 20 in the transport direction 10 of the sheets 3.
  • the movable deflection rollers 17, 20 can be moved between the basic position 25 and the storage position 26 when the device 1 is in operation.
  • the distance X between the basic position 25 and the storage position 26 defines the maximum length of the storage section and thus defines the maximum length of the material web 2 to be accommodated by the web storage 7.
  • the length of the maximum material web 2 that can be taken up essentially corresponds to four times the length of the storage path, i.e. essentially four times the distance X from FIG. 3.
  • the distance X corresponds to half the length of a web loop 16 , 19.
  • the basic position 25 of the movable deflection rollers 17, 20 can also be further to the left with reference to FIG. 3, that is to say in the direction of
  • Braking device 12 moved.
  • the material web feed 8, the cross-cutting device 9, the shingling device 1 1 and the braking device 12 must be stopped synchronously in order to ensure the synchronized running of the aforementioned assemblies. Due to the high mass inertia of the paper roll 5, the web unwind 4 can only be braked with a time delay to the aforementioned devices.
  • the movable deflection rollers 17, 20 are moved in the transport direction 10 of the sheets in order to receive the material web 2 provided in excess.
  • the length of the storage section and thus also the length of the web loops 16, 19 are increased in this way.
  • the material web 2 provided in excess is taken up in this way by the web memory 7 and stored.
  • the tension of the material web 2 preferably remains unchanged during the braking process.
  • the material web infeed 8, the cross-cutting device 9, the shingling device 11 and the braking device 12 can be approached synchronously and briefly before the web unwind 4.
  • the web memory 7 then takes on the function of providing the stored material web 2.
  • the movable deflection rollers 17, 20 are moved against the transport direction 10 of the sheets. The length of the web loops 16, 19 is reduced in this way and the previously stored material web 2 is released from the memory.
  • the movable deflection rollers 17, 20 stop and are then preferably in the basic position 25.
  • the movable deflection rollers 17, 20 can move between the basic position 25 and the storage position 26 to store the material web 2 are moved.
  • a dancer deflection roller 18 is provided for regulating the tension of the material web.
  • Web tensions are compensated for by the dancer deflection roller 18 carrying out small lifting movements in and / or against the transport direction 10 of the sheets 3 in the horizontal direction with a hydraulic drive 27.
  • the length of the rail transport path is slightly increased or decreased in this way. If the tension of the material web 2 is too low, for example, then the dancer deflection roller 18 is moved against the transport direction 10 of the sheets 3, whereby the length of the web transport path is increased. This increases the tension in the material web 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Advancing Webs (AREA)
  • Details Of Cutting Devices (AREA)
  • Unwinding Webs (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Abstract

L'invention concerne un arrangement (1), notamment un coupeur transversal de bobine, notamment en plus destiné à former un flux en écailles de feuilles (3) qui se recouvrent par le dessous ou le dessus, en particulier de feuilles de papier ou de carton, comprenant un dispositif de coupe transversale (9) destiné à couper une bande de matière (2) en feuilles individuelles (3) et comprenant un accumulateur de bande (7), monté en amont du dispositif de coupe transversale (9) le long du trajet de transport de la bande, destiné à stocker et/ou à fournir une bande de matière. La bande de matière (2) est acheminée à l'accumulateur de bande (7) à partir d'un dérouleur de bande (4). L'invention est caractérisée en ce que l'accumulateur de bande (7) destiné à stocker la bande de matière (2) est disposé dans la zone du dispositif de coupe transversale (9) au-dessous de la hauteur de défilement des feuilles (3).
EP20707356.0A 2019-02-20 2020-02-11 Arrangement pour découper une bande de matière en feuilles individuelles avec un accumulateur de bande Active EP3737630B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019104275 2019-02-20
DE102019119994.8A DE102019119994A1 (de) 2019-02-20 2019-07-24 Vorrichtung zum Schneiden einer Materialbahn in einzelne Bögen mit einem Bahnspeicher
PCT/EP2020/053412 WO2020169401A1 (fr) 2019-02-20 2020-02-11 Arrangement pour découper une bande de matière en feuilles individuelles avec un accumulateur de bande

Publications (2)

Publication Number Publication Date
EP3737630A1 true EP3737630A1 (fr) 2020-11-18
EP3737630B1 EP3737630B1 (fr) 2022-04-27

Family

ID=71843730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20707356.0A Active EP3737630B1 (fr) 2019-02-20 2020-02-11 Arrangement pour découper une bande de matière en feuilles individuelles avec un accumulateur de bande

Country Status (9)

Country Link
US (1) US20210024314A1 (fr)
EP (1) EP3737630B1 (fr)
JP (1) JP7148621B2 (fr)
KR (1) KR102499675B1 (fr)
DE (1) DE102019119994A1 (fr)
DK (1) DK3737630T3 (fr)
ES (1) ES2922350T3 (fr)
PL (1) PL3737630T3 (fr)
WO (1) WO2020169401A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114436030B (zh) * 2021-10-18 2024-01-02 江苏嘉拓新能源智能装备股份有限公司 一种旋转同步式极片裁切机构及裁切方法

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2010467B2 (de) * 1970-03-05 1971-11-25 Spiess, Helmut, Dr.-Ing., 8906 Gersthofen Vorrichtung zur bildung einer folge von sich unter lappender bogen fuer bogenanlegeapparate
DE2638783C3 (de) * 1976-08-27 1981-04-23 Georg Spiess Gmbh, 8906 Gersthofen Bogenanleger
DE3743763C1 (de) * 1987-07-10 1989-06-01 Bwg Bergwerk Walzwerk Bandbehandlungsanlage fuer Metall-,Kunststoff-,Papierbaender oder dergleichen
EP0425715B1 (fr) * 1989-10-28 1994-02-16 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Accumulateur de bandes
DE8915173U1 (de) * 1989-12-23 1991-04-18 Tente-Rollen Gmbh & Co, 5632 Wermelskirchen Laufrolle
DE4108397C2 (de) * 1991-03-15 1995-09-21 Roland Man Druckmasch Vorrichtung zur Bildung einer Folge von sich unterlappenden Gegenständen
US5950510A (en) * 1995-06-29 1999-09-14 Scheffer, Inc. Decelerating mechanism for printed products
EP0761582A2 (fr) * 1995-09-12 1997-03-12 MANNESMANN Aktiengesellschaft Accumulateur de bande vertical
JPH09328246A (ja) * 1996-06-13 1997-12-22 Shikoku Kakoki Co Ltd ウェッブのアキュムレータ
US5727748A (en) * 1996-09-04 1998-03-17 Arpeco Engineering Ltd. Web inspection and repair machine with web indexer device
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US6588641B2 (en) * 2001-04-11 2003-07-08 Prittie Family Trust 1989 Method and apparatus for handling web
US7802504B1 (en) * 2002-06-21 2010-09-28 Smart Bottle Inc. High speed transverse cutter for webs
DE10236658B4 (de) * 2002-08-09 2012-11-29 Wifag Maschinenfabrik Ag Schnittregister-Aufteilung
DE10308829A1 (de) * 2003-02-27 2004-09-16 Albin Spitzke Kg (Gmbh & Co) Verfahren und Vorrichtung zum Herstellen von rechteckigen Zuschnitten aus flächigem Material
JP4749172B2 (ja) 2006-02-09 2011-08-17 株式会社ミヤコシ 断裁排出装置
DE102007002041A1 (de) * 2007-01-13 2008-07-17 Mabeg Maschinenbau Gmbh & Co. Kg Querschneider mit Längsschnitt
US7942406B2 (en) 2008-08-22 2011-05-17 Hinix Co., Ltd. Roll feeder
JP2010254430A (ja) 2009-04-24 2010-11-11 Olympus Corp ミシン目装置、及びこのミシン目装置を備えた画像記録装置
JP5622549B2 (ja) * 2010-12-10 2014-11-12 株式会社リブドゥコーポレーション 吸収性物品の製造システム
JP6829681B2 (ja) * 2015-03-27 2021-02-10 株式会社フジシールインターナショナル アキューム装置
JP6645457B2 (ja) 2017-02-28 2020-02-14 株式会社村田製作所 ウェブ加工装置
DE102018111190A1 (de) 2017-06-14 2018-12-20 Bw Papersystems Stuttgart Gmbh Vorrichtung und Verfahren zur Bildung eines Schuppenstroms von unter- oder überlappenden Bögen
DE202018103354U1 (de) * 2017-06-14 2018-09-17 Bw Papersystems Stuttgart Gmbh Vorrichtung zum lagedefinierten Transport von Bögen

Also Published As

Publication number Publication date
JP2021524832A (ja) 2021-09-16
PL3737630T3 (pl) 2022-08-22
EP3737630B1 (fr) 2022-04-27
KR20210007955A (ko) 2021-01-20
US20210024314A1 (en) 2021-01-28
DK3737630T3 (da) 2022-07-25
JP7148621B2 (ja) 2022-10-05
KR102499675B1 (ko) 2023-02-14
WO2020169401A1 (fr) 2020-08-27
ES2922350T3 (es) 2022-09-13
DE102019119994A1 (de) 2020-08-20

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