EP3424854B1 - Fourniture de matériau de feuille intermédiaire en forme de bande à une zone de coupe - Google Patents

Fourniture de matériau de feuille intermédiaire en forme de bande à une zone de coupe Download PDF

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Publication number
EP3424854B1
EP3424854B1 EP18181280.1A EP18181280A EP3424854B1 EP 3424854 B1 EP3424854 B1 EP 3424854B1 EP 18181280 A EP18181280 A EP 18181280A EP 3424854 B1 EP3424854 B1 EP 3424854B1
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EP
European Patent Office
Prior art keywords
drive
roll
web
accordance
individual
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
EP18181280.1A
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German (de)
English (en)
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EP3424854A1 (fr
Inventor
Tobias Einloft-Velte
Thomas Nispel
Noël Ritzen
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.)
Weber Maschinenbau GmbH Breidenbach
Original Assignee
Weber Maschinenbau GmbH Breidenbach
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Priority claimed from DE102017118930.0A external-priority patent/DE102017118930A1/de
Application filed by Weber Maschinenbau GmbH Breidenbach filed Critical Weber Maschinenbau GmbH Breidenbach
Publication of EP3424854A1 publication Critical patent/EP3424854A1/fr
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Classifications

    • 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
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
    • B26D7/325—Means for performing other operations combined with cutting for conveying or stacking cut product stacking the cut product individually separated by separator elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • B65H16/021—Multiple web 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
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B65H16/106—Arrangements for effecting positive rotation of web roll in which power is applied to 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
    • 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
    • B65H35/04—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
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers
    • 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
    • B65H2301/413—Supporting web roll
    • B65H2301/4139—Supporting means for several rolls
    • B65H2301/41394—Supporting means for several rolls moving independently from each other
    • 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
    • B65H2301/413—Supporting web roll
    • B65H2301/4139—Supporting means for several rolls
    • B65H2301/41398—Supporting means for several rolls juxtaposed
    • 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
    • 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
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4432—Moving, forwarding, guiding material by acting on surface of handled material by means having an operating surface contacting only one face of the material, e.g. roller
    • B65H2301/44322—Moving, forwarding, guiding material by acting on surface of handled material by means having an operating surface contacting only one face of the material, e.g. roller belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/70—Clutches; Couplings
    • B65H2403/72—Clutches, brakes, e.g. one-way clutch +F204
    • B65H2403/724—Clutches, brakes, e.g. one-way clutch +F204 electromagnetic clutches
    • 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
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/121—Fan
    • 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
    • B65H2406/311—Suction box; Suction chambers for accumulating a loop of handled material
    • 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
    • B65H2408/214—Accumulators loop hanger accumulator
    • 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
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • the invention relates to a device for providing web-shaped interleaf material in a cutting area, in which supplied products are cut into slices and interleaves are introduced, which are separated from the interleaved material provided in the cutting area.
  • interleaves In the cutting area, slices separated from the products can consequently be provided with the interleaves introduced into the cutting area.
  • interleaves can be inserted between two immediately successive panes or interleaves can be inserted under a pane and thus between this pane and a support surface of this pane.
  • such a function which is also referred to as the underleaver function, does not rule out the fact that when portions are formed, one interleaf is not only placed under the bottom slice, but one or more interleaves are also inserted between two consecutive slices within the portion become.
  • an interleaf can generally be inserted within a portion either between each pair of directly consecutive slices or only between one or more pairs of directly consecutive slices, for example between every n-th pair, where n> 1.
  • Such devices are known in principle in the field of slicing food products and are also referred to as interleavers or underleavers. Such a device is in DE 10 2013 204956 A1 according to the preamble of claim 1 disclosed.
  • an interleaver can also exercise an underleaver function, and vice versa.
  • the present disclosure therefore applies not only to the interleavers primarily explained here or the provision of interleaves or interleaf material between two immediately successive disks, but also to so-called "underleavers" which are used to place a sheet underneath products. With such an under-sheet feed it is ensured that the products at least do not rest with their entire underside directly on a support surface, for example a conveyor device. If only the term “interleaver” is used in each case in the following, then the respective statements apply and the respective disclosure also applies - insofar as it makes sense - to an “underleaver”.
  • one and the same device for providing interleaving sheet material or interleaving sheets can exercise both an interleaver function and an underleaver function, ie an interleaver is also an underleaver in the context of this disclosure, and vice versa.
  • the invention also relates to a device for slicing food products with a product feed, which feeds products to be sliced to a cutting area in which a cutting knife moves in a rotating and / or revolving manner in order to cut the fed products into slices, and with an inventive inter- or Underleaver.
  • Such cutting devices are also referred to as slicers or high-speed slicers, the latter against the background that with such machines, for example, bar-shaped or loaf-shaped food products can be cut at high cutting speeds of several hundred to several thousand slices per minute.
  • the separated, For example, stacked or shingled portions are formed on a storage surface formed, for example, by a portioning belt.
  • An interleaver is used, for example, to insert interleaves between directly successive slices of a portion so that the slices can later be separated from one another more easily.
  • the material used for the interleaves is, for example, paper or a plastic film.
  • interleavers or underleavers are, for example, that a multi-lane slicing of food products and a lane-specific product feed is becoming increasingly important and interleavers or underleavers that can be operated individually are not as efficient as they are for optimal adaptation of the interleavers - or underleaver operation to the track-specific cutting operation would be desirable.
  • the object of the invention is to improve a device for providing web-shaped interleaf material in such a way that efficient track-specific operation is possible, in particular in connection with multi-track operation Slicing of food products using a high-speed slicer.
  • the device is designed for a multi-lane provision of web-shaped interleaf material and has a material supply which comprises a rotatably mounted roll of material for each lane, a removal device being provided which is designed for a track-specific unrolling of the webs of material from the rolls of material is.
  • the device according to the invention which is also referred to simply as an interleaver and / or underleaver in the following, can consequently work continuously with its own material web in each track. It is therefore not necessary to produce a plurality of individual material webs from one raw material web within the interleaver.
  • This aspect of the invention starts with the material supply itself and thus with the "source” of the material webs. This enables a continuous track-specific handling of the individual material webs. The handling of each material web can consequently be optimally matched to the requirements of the corresponding lane of a slicer that works accordingly with multiple lanes.
  • Advantageous embodiments of the invention are specified in the dependent claims, the description and the drawing.
  • the removal device comprises an unwind drive for each track which, in an active state, is in positive or non-positive engagement with the roll of material or with the rolled up material web.
  • the unwinding drives as a friction drive which, in an active state, is in frictional engagement with the wound web of material. This means that it is not necessary to drive the roll of material, e.g. via its axis of rotation, in order to unwind the material web. It is also advantageous that the friction drive can act on the outer circumference of the roll of material, so that the length of the web unrolled per unit of time is dependent only on the speed of the friction drive, but not on the current diameter of the roll of material. Furthermore, the friction drive can remain in frictional engagement with the roll of material at a standstill, i.e. when no web length is to be unrolled temporarily, and thus serve as a brake for the roll of material in order to prevent the roll of material from rotating further due to inertia.
  • the friction drives are controllable in such a way that they remain in frictional engagement with the wound web of material after a transition from a drive state to a non-drive state.
  • the friction drive can comprise a friction wheel, an arrangement of several friction wheels or at least one circumferential friction belt, one strand of which interacts with the wound web of material.
  • the unwind drive can be converted into a passive state in which the unwind drive is out of engagement with the wound web of material.
  • the unwind drive comprises a pivotable drive arm.
  • the pivoting movements of the drive arms can be implemented e.g. by means of a pneumatic cylinder.
  • the pivot axis of the drive arm preferably coincides with an axis of rotation of a drive shaft for a drive element of the drive arm.
  • pivot axes that are offset parallel to one another are provided for the drive arms of the individual tracks. It is therefore not absolutely necessary to arrange the drive arms of all tracks on a common pivot axis.
  • the division of the drive arms over several swivel axes enables a particularly space-saving arrangement of the individual unwind drives within the interleaver.
  • the material rolls of the individual tracks are preferably mounted rotatably about a common axis of rotation, the pivot axes of the drive arms lying on a circle around the common axis of rotation. This concept enables a symmetrical structure and the use of identical components for the individual unwind drives. If the material rolls of the individual tracks sit next to one another on the common axis of rotation, all material webs have the same initial geometrical situation, which simplifies the further handling of the individual material webs on their way to the cutting area.
  • the drive arms of the individual tracks are combined in pairs or groups and a common pivot axis is provided for each pair or each group.
  • a comparatively simple drive concept can be implemented if, according to a further exemplary embodiment, the drive arms of the individual tracks are combined in pairs or groups and a coaxial shaft drive with several coaxially nested drive shafts is provided for each pair or group, each associated with one of the drive arms .
  • a further possible embodiment of the invention is advantageous, according to which all drive arms for assembly or disassembly from the same side of the device to their respective ones Drive shaft can be pushed on.
  • the interleaver or underleaver according to the invention only needs to be accessible from one side, namely from the "preferred" operating side of the interleaver or underleaver or slicer with regard to the overall construction of the interleaver or the installation situation on site to which the interleaver or underleaver currently belongs.
  • a pivot drive comprising a piston / cylinder / arrangement can be provided for each drive arm.
  • the pivot drive can be designed to pretension the unwind drive into engagement with the roll of material or the wound web of material during an unwinding operation.
  • An optimal use of the installation space available in the interleaver or underleaver can be achieved if, according to a further development, a belt drive with a drive motor arranged offset to a drive shaft is provided for each unwind drive.
  • the unwinding rates of the individual material webs can be changed by changing the drive speed of the unwinding drive when the unwinding drive remains in engagement with the roll of material or with the wound up material web.
  • An internal or external control device is preferably provided which is designed to control the removal of the individual webs of material by operating the individual unwinding drives on a track-by-track basis.
  • a conveyor device which has a common drive for all material webs and a separate coupling for each material web.
  • the conveyor device can consequently be built comparatively simply and inexpensively, since only a single drive is required and the track-specific operation of the conveyor device is implemented by the individual clutches, which can be passive components that do not require active control.
  • the clutch can be a clutch that switches automatically as a function of force or torque, in particular a slip clutch.
  • the coupling can in particular be designed as a magnetic coupling.
  • the clutch can preferably be set to different threshold values for the transmission of force or torque.
  • the conveying device can be adapted to the respective requirements, for example to a cutting program set in each case for the slicer or to the material properties of the interleaf material used in each case.
  • the drive can comprise a common drive shaft for all material webs and a separate conveyor roller on the drive shaft for each material web, a coupling being effective in each case between the conveyor rollers and the drive shaft.
  • the conveying rate of the drive is matched to the unwinding of the material webs from the material rolls in such a way that all material webs are always kept under tension. This ensures that the track length leaving the conveyor device per unit of time is dependent on the roll rate, so that a change in the roll rate results in a corresponding change in the track length departing from the conveyor device per unit time without delay.
  • a constant value can be specified or specifiable for the delivery rate of the drive.
  • the constant value can be greater than the largest expected roll rate for the respective application.
  • the conveying rate of the drive of the conveying device is less than the length of the path emanating from the conveying device per unit of time, since no more material can be conveyed per unit of time than is unrolled from the roll of material.
  • the length of material emanating from the conveyor per unit of time can at least temporarily be less than the roll rate, at least when the conveyor rate of the drive of the conveyor to this Time is less than the roll rate.
  • the conveying rate of the drive of the conveying device can be changed over time and can be adjusted as a function of a measure that can be derived from one or more of the rolling rates.
  • the drive of the conveyor device can be switched off when there is no more unwinding drive in a drive state, and can be switched on again as soon as at least one unwinding drive changes back into a drive state.
  • the drive of the conveying device can be controlled by an internal or external control device as a function of the roll-off rates of the individual material webs in order to change the conveying rate.
  • the conveyor device can have a conveyor or take-off roller, which interacts with a counter or pressure roller of its own or common to all of the conveyor or take-off rollers. This can ensure that the material webs are securely seated.
  • a plurality of counter or pressure rollers arranged next to one another in the transverse direction can be provided for each conveyor or take-off roller. Other means of pressing on can also be provided.
  • a device is provided, the material supply for at least two tracks comprising a common rotatably mounted roll of material, and a device for dividing the web of material into several individual webs of material being provided for the web of material of the common roll of material.
  • a fundamental, albeit not continuous, multi-lane of the interleavers or underleavers can consequently also be implemented in that a common, rotatably mounted material roll is provided for several lanes. From the material web unrolled from this roll of material, several individual material webs are produced by means of a dividing device.
  • the dividing device can basically be arranged at any position within the interleaver or underleaver.
  • a common control device is preferably provided which is designed to coordinate the cutting of the products and the provision of the interleaf material on a track-by-track basis.
  • Fig. 1 shows a schematic, not to scale side view of a multi-lane high-speed slicer, that is to say a device for multi-lane slicing of food products such as sausage, meat or cheese.
  • the slicer is operated in four lanes.
  • a product feed 49 comprises for each track, i.e. for each of the four products 11, a product holder 46, also referred to as a product gripper, which holds the product 11 at the rear end and feeds it in the feed direction indicated by the arrow to a cutting plane 50 running perpendicular to the product support 53, in which a cutting knife 51 moves, by the cutting edge of which the cutting plane 50 is defined.
  • the cutting knife 51 can be a so-called sickle or spiral knife with a sickle or spiral cutting edge which only rotates about a knife axis (not shown).
  • the cutting knife 51 can be a so-called circular knife with a circular cutting edge that rotates around its own knife axis and also around an axis running parallel to the knife axis rotates in a planetary manner in order to generate the cutting movement relative to the products 11 required to separate the slices 13 from the products 11.
  • the product feed 49 can be operated on a track-by-lane basis, i.e. the product holders 46 can basically move independently of one another in the feed direction and thus feed the individual products 11 to the cutting plane 50 at different speeds and speed profiles.
  • product support belts that can be driven on individual tracks are used as product feed 49 instead of a passive product support 53.
  • the slicing process can be individually controlled in each lane, independently of the other lanes, in particular with the aim of producing slices 13 with precise weight or portions formed from several slices 13, taking into account the individual product properties such as weight distribution and cross-sectional profile.
  • the track-specific product feed 49 can also take into account the cutting movement of the cutting knife 51, which is characterized in that one slice 13 is separated from all products 11 per cutting movement - i.e. per revolution or rotation of the cutting knife 51, but this does not take place exactly at the same time , but rather because of the passage of the cutting knife 51 through the products 11, which requires a certain period of time, the severed slices 13 of the products 11 fall one after the other onto the storage area formed here by a so-called portioning belt 55.
  • interleavers that is to say devices for providing web-shaped interleaf material, with which it is possible to insert interleaves 15 between directly successive panes 13, are used for this purpose.
  • the endless material webs 19 in the area of the cutting plane 50 are ejected from below in accordance with the timing specified by the cutting movement of the cutting knife 51. This is done in such a way that the front end of the relevant material web 19 lies in front of the cut surface of the relevant product 11 and is cut off from the material web 19 by means of the cutting knife 51 together with the next severed disc 13, thus forming an intermediate sheet 15. This intermediate sheet comes to rest on the portioning belt 55 or the previously separated disc 13 and below that disc 13 with which the intermediate sheet 15 was previously separated.
  • the interleaver according to the invention integrated into the slicer is multi-lane and is designed to provide the interleaf material continuously for individual lanes.
  • the structure and functionality of the interleaver am Example of four-lane operation explained.
  • the interleaver according to the invention can also be operated in one, two or three lanes.
  • the respective operating mode depends, for example, on the products to be sliced, the downstream conveying and sorting devices and the type of packaging or the packaging machine.
  • the interleaver according to the invention is designed in such a way that it can be operated with any number of tracks and consequently also with more than four tracks.
  • the provision of the intermediate sheet material includes removing the material from a material supply formed by a material roll 17, storing material in a loop storage device 61, and guiding the material in an area between the loop storage device 61 and an output device 71 and the output of the material by means of the output device 71.
  • the removal of the material web 19 from the material roll 17 includes the unrolling of the material web 19 by means of an unwinding drive 21 and the conveying of the material web 19 into the loop storage 61 by means of a conveyor device 23 common to all tracks.
  • the individual unwinding drives 21 and the common conveyor device 23 form a removal device of the interleaver according to the invention.
  • the material web 19 is stored by forming a material loop 20 in the loop memory 61.
  • the individual material webs 19 or loops 20 are laterally guided by partition walls (not shown) in order to ensure that the material webs 19 follow the track.
  • the entire transport path for the material web 19 between the loop storage device 61 and the output device 71 is formed by a shaft 111 in which the individual material webs 19 are guided.
  • a shaft 111 in which the individual material webs 19 are guided.
  • the loop storage device 61 and the output device 71 in addition to a pure guide section, as shown in FIG Fig. 1 is formed by the shaft 111, further devices are provided, which will not be discussed in detail at this point.
  • the output of the individual material webs 19 each includes the removal of the material web 19 from the loop storage 61 and the ejection of the material web 19 into the cutting area, that is, in front of the cut surface of the product 11 in question, as explained above.
  • the material web 19 is pulled out of the loop storage device 61.
  • the material web 19 is advanced into the cutting area and thus ejected.
  • control device 39 which is the central control device of the Slicers and thus can act as a control device external to the interleaver.
  • the interleaver can have an internal control device which cooperates with a control device of the slicer.
  • the interleaver can also receive external signals, e.g. from a camera system that monitors the portions generated by means of the slicer or the portion formation from the severed slices.
  • the material rolls 17 of the individual tracks are mounted rotatably about a common axis of rotation 33 defined by a common mandrel.
  • Each roll of material 17 comprises a roll core 113 on which the web of material 19 is wound.
  • the material rolls 17 are freely rotatable on the mandrel in so far as the rotary drive for the material rolls 17 for unrolling the material webs 19 does not take place via this common mandrel.
  • Each unwind drive 21 comprises a drive arm 27 which can be pivoted about a pivot axis 28.
  • Each drive arm 27 comprises a carrier (not shown), at one end of which a drive roller 30 and at the other end of which a deflection roller 32 is attached.
  • the drive element for the roll of material 17 is an endless belt 25 that runs around the drive roll 30 and the deflection roll 32, which is designed as a friction belt and serves to interact positively with the wound web 19 of the roll of material 17 via the strand facing the roll of material 17.
  • each drive roller 30 is rotatably connected to a drive shaft 31 which can be set in rotation by means of a drive motor M via a drive belt 24 in order to drive the friction belt 25 and in this way unroll the material web 19 from the material roll 17.
  • the four drive arms 27 are arranged offset to one another in the transverse direction. This is shown in the schematic representation at the top right in Fig. 1 indicated by the assignment of the tracks S1 to S4 to the individual drive rollers 30 of the drive arms 27.
  • the spatial arrangement of the drive arms 27 and the type of rotary drive for the drive rollers 30 are particularly advantageous.
  • the axes of rotation 29 of the drive shafts 31 and thus of the drive rollers 30 each coincide with the pivot axis 28 of the relevant drive arm 27.
  • a single common pivot axis 28 is not provided for all drive arms 27. Instead, the drive arms 27 are combined in pairs, a common pivot axis 28 being provided for each pair.
  • Two drive arms 27 pivotable about an upper pivot axis 28 are assigned to tracks S1 and S3, while tracks S2 and S4 are assigned two drive arms 27 which are pivotable about a lower pivot axis 28.
  • all drive arms 27 have the same length and the upper pivot axis 28 and the lower pivot axis 28 lie on a circular cylinder around the common axis of rotation 33 of the material rolls 17.
  • the drive arms 27 can be of different lengths and the pivot axes 28 can be arranged differently.
  • a coaxial shaft drive 35 and 37 is provided both for the upper pair of drive arms 27 and for the lower pair of drive arms 27.
  • the two drive motors M1 and M3 belong to the upper coaxial shaft drive 35, while the lower coaxial shaft drive 37 comprises the two drive motors M4 and M2.
  • a motor M3 or M4 is each connected to an inner drive shaft 31 for the drive roller 30 located axially further away, while the respective other motor M1 or M2 is connected to a hollow shaft 31 which surrounds the inner drive shaft 31 and on which the closer drive roller 30 is seated.
  • the drive motors M1 to M4 are not connected directly to the drive shafts 31, but rather via drive belts 24. This enables the motors to be positioned offset or offset and consequently an optimal use of the space available in the interleaver.
  • the interleaver can be built comparatively narrow as a result, since the motors M1 to M4 each do not need to be positioned in an axial extension of the drive shafts 31.
  • Another advantage of this drive concept is that all of the motors M1 to M4, including the drive belts 24, are only arranged on one side of the interleaver. This area is therefore more accessible via the other side of the interleaver. It is particularly advantageous that all drive rollers 30 and thus drive arms 27 can be plugged onto and removed from the respective drive shaft 31 from the same side - namely starting from the "preferred" operating side. This not only facilitates cleaning and maintenance, but also enables simple and quick conversion, for example, if you want to switch to slicer and interleave operation with a different number of lanes.
  • a pivot drive is also provided for each drive arm 27.
  • the swivel drive can for example comprise a piston / cylinder arrangement.
  • the drive arms 27 can each be pivoted into a passive state in which the friction belt 25 is out of frictional engagement with the roll of material 17.
  • This passive state can, for example, be a parking position into which the drive arms 27 are pivoted when new material rolls 17 are to be inserted.
  • the unwinding drives 21 each engage with their friction belt 25 in a force-locking manner on the outer circumference of the material roll 17 in order to unroll the material web 19, has the advantage that the unwinding rate, ie the web length unrolled per unit of time, is independent of the current diameter of the material roll 17 and thus whose degree of consumption is.
  • the aforementioned swivel drives (not shown) can each preload the drive arm 27 in the direction of the axis of rotation 33 of the roll of material 17 with a predetermined force or a predetermined torque, so that the drive arm 27 follows the diameter of the roll of material 17, which decreases during operation, and the Frictional engagement between the friction belt 25 and the wound web of material 19 is always the same.
  • a nearly exhausted roll of material 17 is shown with a dashed circle, the diameter of which is only slightly larger than the diameter of the roll core 113.
  • An upper drive arm 27 and a lower drive arm 27 are shown in dashed lines to illustrate a state pivoted correspondingly far in the direction of the axis of rotation 33 of the material rolls 17.
  • the operation of the unwind drives 21 depends on the requirements of the central control device 39. If less material or temporarily no material is required in a track, the unwind rate of the relevant track can be increased by reducing the speed of the friction belt 25 or by switching off the drive motor M can be changed accordingly. In a non-drive state with the drive motor M switched off, the relevant drive arm 27 with its friction belt 25 remains in frictional engagement with the wound material web 19, i.e. is not pivoted out of engagement with the material roll 17 by means of the above-mentioned pivot drive (not shown). This has the advantage that the friction belt 25 acts as a brake for the roll of material 17, which prevents further rotation of the roll of material 17 due to inertia.
  • the removal of the material webs 19 from the material rolls 17 includes not only the unrolling by means of the unwinding drives 21 explained above, but also the conveyance of the material webs 19 into the loop storage 61.
  • the removal device comprises a conveying device 23 which is additionally schematized above in the middle of the Fig. 1 is shown.
  • the conveying device 23 For each track S1 to S4, the conveying device 23 comprises a conveying roller 47 which, together with a counter roller 48, forms a conveying gap for the respective material web 19. All conveyor rollers 47 sit on a common drive shaft 45, that is to say they are only driven jointly, namely via a common drive motor 41 which sets the common drive shaft 45 of the conveyor rollers 47 in rotation via a drive belt 42.
  • each conveyor roller 47 is assigned a slip clutch 43 which is arranged between the conveyor roller 47 and the common drive shaft 31.
  • the slip clutches 43 are each a magnetic clutch, the switching point of which can be adjusted.
  • the conveying device 23 is operated via the control device 39 in such a way that the material webs 19 are always kept under tension between the respective material roll 17 and the respective conveying roll 47.
  • the common drive shaft 45 can rotate at a constant speed which is matched to an expected operation of the interleaver for the respective cutting program of the slicer. If the unwind drive 21 is stopped in a lane or the unwind rate in a lane is reduced, there is no need to actively intervene in the operation of the conveyor device 23, since an unwind rate falling below the conveyor rate of the conveyor 23 is intercepted in a track by the clutch 43 of this track is without the material web 19 in question being excessively stressed or even tearing.
  • conveyor device 23 only requires a single drive with drive motor 41 and drive belt 42 and only a single common drive shaft 45 for all lanes S1 to S4 and no structural or control measures are required to enable active lane-specific operation of the To realize conveyor 23.
  • the conveying rate of the conveyor device 23 determines the length of the web entering the loop storage 61 per unit of time in each lane. Since the operation of the individual unrolling drives 21 controlled by the control device 39 ultimately decides whether and how much material is unrolled per unit of time in the individual tracks from the respective material roll 17, the individual conveying rates into the loop memory 61 are ultimately determined by the individual unrolling rates.
  • the track-related material requirement in the cutting area is determined by the control device 39 and ensured by a corresponding track-related control of the unwinding drives 21.
  • the loop memory 61 ensures a decoupling in each track between the sluggish roll of material 17 on the one hand and the highly dynamic output device 71 on the other hand, which is in time with the cutting knife 51 each has to briefly output a web length corresponding to the length of the interleaf 15 required in each case.
  • Such a highly dynamic cyclical ejection of relatively long material sections would be incompatible with pulling off the material web 19 directly from the material roll 17.
  • the control device 39 therefore ensures that a sufficiently large web length for a trouble-free output operation of the output device 71 is available in the loop storage device 61 in each track by ensuring that a sufficiently large material loop 20 is always provided in the loop storage device 61.
  • a blower 64 belonging to this combined suction and blowing device 63, 65 is connected with its suction side via a suction line 66 to a negative pressure housing 68 in which several negative pressure chambers 69, which are fluidically separated from one another within the housing 68, are formed.
  • the pressure in each vacuum chamber 69 can be measured and made available to the control device 39.
  • the housing 68 is limited by a curved contact surface 67 in which openings are formed through which air can get from the loop area into the individual vacuum chambers 69, as indicated by the small arrows.
  • the vacuum chambers 69 are each on the suction line 66 and thus on the suction side of the fan 64 is connected, the pressure side of which is directed into the loop area, as shown in FIG Fig. 1 is indicated by the arrow.
  • This air circulation has the effect that an intended material loop 20 is always formed and the material web 19 is intended to lie against the contact surface 67 of the vacuum housing 68. Since the material web 19 is sucked against the contact surface 67 due to the negative pressure prevailing in the vacuum chambers 69, the contact surface 67 also serves as a brake for the material webs 19. This means that the material webs 19 are always kept under slight tension, which prevents the material webs from sticking 19 upset when the output device 71 working in the cutting cycle pulls the material webs 19 out of the loop storage 61 in a highly dynamic manner.
  • the braking effect of the contact surface 67 or the vacuum chambers 69 is set in such a way that this highly dynamic removal process is not impaired.
  • the control device 39 can detect which vacuum chamber 69 is covered by the material web 19 and which is not. From this information, a measure for the current size of the material loop 20 in the loop area of the loop storage device 61 can be derived in a simple manner with sufficient accuracy.
  • Fig. 1 the material web 19 shown in dashed lines is shown with a maximum loop size. The course of the material web 19 with a minimal loop size is indicated by a dotted line, in which only the uppermost vacuum chamber 69 is partially covered by the material web 19.
  • the controller 39 can activate or deactivate the individual unwinding drives 21 for each lane or change the individual unwinding rates by appropriately controlling the motors M1 to M4 in order to ensure that a sufficiently large material loop 20 is available for each lane at all times to the previously discussed To maintain decoupling between the relevant track of the output device 71 and the associated roll 17 of material.
  • the output device 71 is also designed for lane-specific operation.
  • a feed unit 73 comprises a feed roller 74 for each of the tracks S1 to S4, as will be described below with reference to two possible exemplary embodiments according to FIG Fig. 2 and 3 is explained in more detail.
  • the feed rollers 74 have a common axis of rotation 99, with a separate drive motor A1, A2, A3 or A4 being provided for each feed roller 74, which is connected to a drive shaft 83 via a drive belt 78 (cf. Fig. 2 ) cooperates, with which the feed roller 74 in question is rotatably connected.
  • the two feed rollers 74 for the tracks S1 and S2 are driven by a right coaxial shaft drive 79, while a left coaxial shaft drive 81 drives the two feed rollers 74 of the other two tracks S3 and S4.
  • the inner feed roller 74 is driven via an inner drive shaft 83, whereas the outer feed roller 74 is driven via a hollow shaft 83 surrounding the inner drive shaft 83.
  • FIG Fig. 3 An alternative embodiment for a four-track drive with four individually drivable feed rollers 74 is shown schematically in FIG Fig. 3 shown.
  • two parallel axes of rotation 91 are provided, two two-track units 95 being arranged next to one another on each of the two axes 91.
  • Each two-track unit 95 comprises a feed roller 74 and a pressure roller 76, which are connected to one another in a rotationally fixed manner and are, for example, formed in one piece with one another could be.
  • Each feed roller 74 interacts directly with a respective material web 19, while the co-rotating pressure roller 76 is provided with a free-running function with respect to the material web 19 in its track.
  • the freewheeling function is implemented in that the pressure roller 76 carries a freely rotatable pressure sleeve 98 for the material web 19 via a roller bearing 97.
  • a feed roller 74 on one axis 91 and a pressure unit consisting of pressure roller 76 and pressure sleeve 98 on the other axis 91 form a pair 93 which forms a feed gap for the material web 19 in question.
  • Each two-track unit 95 can, for example, be rotated about the respective axis 91 via a drive belt (not shown) by means of an associated drive motor (not shown), the two axes 91 being driven in opposite directions of rotation.
  • Adjacent two-track units 95 on a common axis 91 can be rotated relative to one another.
  • an axial extension of a pressure roller 76 engages in a frontal recess of the adjacent feed roller 74, on which the extension of the pressure roller 76 is supported in the radial direction by a roller bearing 96.
  • This arrangement realizes a track-specific feed for four adjacent tracks S1 to S4 as a particularly compact unit in which the counter units or pressure units 76, 98 assigned to the individual feed rollers 74 are integrated.
  • a division into a feed unit on the one hand and a counter unit on the other hand as in the embodiment according to FIG Fig. 1 and 2 is therefore not provided here.
  • a counter unit 75 is provided in addition to the feed unit 73 with the four track-individually drivable feed rollers 74.
  • the counter unit 75 can be used for each feed roller 74 have at least one associated pressure roller 76, which is elastically or resiliently mounted, as in FIG Fig. 1 schematically through the suspension 77 and in Fig 4 is indicated schematically by a piston / cylinder arrangement 109 designed as a suspension.
  • the counter unit 75 can have a plurality of counter elements distributed along an axis running parallel to the axis of rotation 99 of the feed rollers 74, in particular in the form of individually spring-mounted pressure rollers or pressure rollers, each with a smaller diameter than the feed rollers 74. These non-driven counter elements form with each of the feed rollers 74 a feed gap for one of the material webs 19.
  • Such counter units or pressure units for output devices of interleavers are known in principle, which is why they do not need to be discussed in more detail.
  • a special feature of the output device 71 is that the feed unit 73 and the counter unit 75 together with a cutting edge 85, also referred to as cutting glasses, mold shell or counter knife, are attached to a stationary receptacle 70 which is attached to a machine frame 115 of the slicer.
  • the receptacle 70 and the components of the counter unit 75, the feed unit 73 and the cutting edge 85 are designed to correspond to one another in such a way that these components can only be installed in a single sequence on the receptacle 70 without tools.
  • the counter unit 75 is arranged on the receptacle 70.
  • the feed unit 73 By subsequently attaching the feed unit 73, the counter unit 75 is fixed and secured in its desired position.
  • the attachment of the feed unit 73 requires a combined rotary / pivoting movement into an end position, which - like by the arrow in the large representation of the Fig. 1 indicated - has the consequence that when attaching the feed unit 73 all drive belts 78 of the drive motors A1 to A4 are tensioned at the same time, which were previously placed in the relaxed state around the drive shafts 83 of the feed rollers 74 protruding on both sides.
  • the drive belts 78 are automatically relaxed.
  • a clamping device 117 which comprises two pneumatically adjustable clamping bolts 117 relative to the receptacle 70 - as indicated by the two double arrows - positions and finally secures the cutting edge 85 and thus all three components of the counter unit 75, feed unit 73 and cutting edge 85 on the receptacle 70.
  • the receptacle 70 can also be used to attach further devices. For example, in practice it may be necessary to set the so-called cutting gap between the cutting knife 51 and the cutting edge 85 to a certain value.
  • sensors such as vibration sensors can be used, which can be attached to the receptacle 70 or integrated into the receptacle 70.
  • the control device 39 can also use the clamping bolts 117 to query whether a cutting edge 85 is present at all and whether the correct cutting edge 85 has been installed, depending on the cutting program set in each case. If the cutting edge 85 is missing, for example, the clamping bolts 117 extend further than if there is a correct one Cutting edge 85 - this incorrect positioning of the clamping bolts 117 can be recognized by the control device 39.
  • the material web 19 is ejected by means of the output device 71 in such a way that the front end of the material web 19 lies in front of the cut surface of the respective product 11 so that it is together with the next disc 13 to be separated from the material web 19 by means of the cutting knife 51 cut off and so form an intermediate sheet 15.
  • a negative pressure is generated by means of an air flow in the area between the material web 19 and the cut surface of the product 11, which causes the front end of the material web 19 to lie against the cut surface.
  • the air flow can be generated, for example, in that compressed air is ejected through a gap extending transversely to the material web 19 or through several openings distributed in the transverse direction.
  • FIG. 4 shows, according to the invention, an individually variable air flow 87 is generated for each of the tracks S1 to S4 via the feed unit 73, so that the free ends of the individual material webs 19 can be influenced individually for each track.
  • the individual air flows 87 can be varied in terms of time and with regard to their strength for each individual track.
  • Each outlet opening belongs to an outlet channel 101 formed in the feed unit 73, with all outlet channels 101 from a common distributor space 103 go out, which is connected via an inlet channel 105 and a supply line 107 to a compressed air source, not shown.
  • Each supply line 107 is provided with a controllable valve 108.
  • the valves 108 can be controlled for each lane via an actuating device 89.
  • the bar 72 shown is a replaceable wear part, preferably made of plastic, which serves as a cutting edge cooperating with the cutting knife 51 when cutting through the individual webs of material 19.
  • the interleaver can be designed to automatically connect successive material webs 19 to one another in each of the individual tracks S1 to S4.
  • Fig. 1 possible positions are shown schematically at which a connection device V integrated in the interleaver can be arranged.
  • a changing device which is designed to automatically change a currently used roll of material 17 for a roll of material 17 to be used.
  • the changing device can be arranged outside the interleaver or at least partially integrated into the interleaver.
  • a separate changing device can be provided for each of the tracks S1 to S4. Alternatively, several tracks or all tracks can have a common changing device.
  • the interleaver can also have multiple tracks in that a common, rotatably mounted material roll 17 is provided for several tracks S, with this common material roll 17 for the material web 19 a device T for dividing the material web 19 into several individual material webs 19 is provided.
  • a dividing device T integrated in the interleaver can be arranged is in FIG Fig. 1 indicated schematically.
  • a four-lane interleaver is implemented in that two material rolls 17 are provided, each of which is assigned a roll-off drive 21 and a dividing device T, that is, two individual material webs 19 are created from their material web 19 so that the Four individual material webs 19 reach devices downstream of dividing devices T, as in the case where a separate material roll 17 and no dividing device T is provided for each track S.
  • a separate roll of material can be provided for two tracks and a common roll of material and a dividing device for two further tracks.
  • the interleaver With the interleaver according to the invention, continuous track-specific handling of the individual material webs 19 is consequently possible, so that the interleaver can be operated by means of the control device 39 as a function of the cutting process in such a way that the track-specific interleaver operation can be perfectly matched to the track-specific cutting operation.
  • an interleaver designed as a single-track or temporarily operated single-track can also have an unwind drive, as described above for one of the tracks S1 to S4.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)

Claims (15)

  1. Procédé pour la fourniture en une ou plusieurs voies de matériau de feuille intermédiaire en forme de bande au niveau d'une zone de découpe dans laquelle des produits (11) alimentés en plusieurs voies sont découpés en tranches (13) et simultanément des feuilles intermédiaires (15) sont interposées, qui sont séparées du matériau de feuille intermédiaire fourni dans la zone de découpe,
    comportant une réserve de matériau qui comprend un rouleau de matériau (17), monté de manière rotative, pour chaque voie (S), et
    comportant un moyen de prélèvement (21, 23) réalisé pour dérouler, individuellement par voie, les bandes de matériau (19) depuis les rouleaux de matériau (17),
    caractérisé en ce que
    le moyen de prélèvement comprend pour chaque voie un entraînement de déroulement (21) qui, dans un état actif, est en engagement par coopération de forme ou par coopération de force avec le rouleau de matériau (17) ou avec la bande de matériau enroulée (19).
  2. Dispositif selon la revendication 1,
    dans lequel
    les entraînements de déroulement (21) sont réalisés chacun sous forme d'entraînement à friction qui, dans un état actif, est en engagement par friction avec la bande de matériau enroulée (19), et
    en particulier, les entraînements par friction peuvent être commandés de manière à rester en engagement par friction avec la bande de matériau enroulée (19), après une transition d'un état d'entraînement à un état de non-entraînement.
  3. Dispositif selon la revendication 2,
    dans lequel
    l'entraînement par friction comprend une roue de friction, un agencement de plusieurs roues de friction, ou au moins une courroie de friction (25) en circulation, dont un brin coopère avec la bande de matériau enroulée (19).
  4. Dispositif selon la revendication 2 ou 3,
    dans lequel
    l'entraînement de déroulement (21) peut être mis dans un état passif dans lequel l'entraînement de déroulement (21) n'est pas en engagement avec la bande de matériau enroulée (19), et/ou
    l'entraînement de déroulement (21) comprend un bras d'entraînement pivotant (27),
    en particulier, l'axe de pivotement (28) du bras d'entraînement (27) coïncide avec un axe de rotation (29) d'un arbre d'entraînement (31) pour un organe d'entraînement (25), en particulier pour un organe de friction, du bras d'entraînement (27).
  5. Dispositif selon la revendication 4,
    dans lequel
    des axes de pivotement (28) décalés parallèlement les uns aux autres sont prévus pour les bras d'entraînement (27) des voies individuelles (S), et/ou les rouleaux de matériau (17) des voies individuelles (S) sont montés de manière rotative autour d'un axe de rotation commun (33), et les axes de pivotement (28) des bras d'entraînement (27) sont situés sur un cercle autour de l'axe de rotation commun (33).
  6. Dispositif selon la revendication 4 ou 5,
    dans lequel
    les bras d'entraînement (27) des voies individuelles (S) sont réunis par paires ou par groupes, et un axe de pivotement commun (28) est prévu pour chaque paire ou pour chaque groupe, et/ou les bras d'entraînement (27) des voies individuelles (S) sont réunis par paires ou par groupes, et un entraînement à arbres coaxiaux (35, 37) est prévu pour chaque paire ou pour chaque groupe, qui comprend plusieurs arbres d'entraînement (31) disposés coaxialement les uns dans les autres et associés chacun à l'un des bras d'entraînement (27).
  7. Dispositif selon l'une des revendications 4 à 6,
    dans lequel
    pour le montage ou pour le démontage, tous les bras d'entraînement (27) peuvent être enfilés sur leur arbre d'entraînement respectif (31) depuis le même côté du dispositif, et/ou
    un entraînement pivotant est prévu pour chaque bras d'entraînement (27), qui comprend un ensemble à piston/cylindre.
  8. Dispositif selon l'une des revendications 2 à 7,
    dans lequel
    un entraînement à courroie comprenant un moteur d'entraînement (11) disposé de manière décalée par rapport à un arbre d'entraînement (31) est prévu pour chaque entraînement de déroulement (21), et/ou les taux de déroulement respectifs des bandes de matériau individuelles (19) sont variables par variation de la vitesse d'entraînement de l'entraînement de déroulement (21), l'entraînement de déroulement (21) restant en engagement avec le rouleau de matériau (17) ou avec la bande de matériau enroulée (19).
  9. Dispositif selon l'une des revendications précédentes,
    dans lequel
    le prélèvement des bandes de matériau individuelles (19) peut être commandé par un moyen de commande interne ou externe (39) en faisant fonctionner individuellement par voie les entraînements de déroulement individuels (21).
  10. Dispositif selon l'une des revendications précédentes,
    dans lequel
    il est prévu un moyen de transport (23) qui comprend un entraînement commun (41) pour toutes les bandes de matériau (19) et qui comprend un accouplement (43) propre pour chaque bande de matériau (19), et en particulier, l'accouplement (43) est un accouplement de commutation automatique dépendant de la force ou du couple de rotation, en particulier un accouplement à glissement.
  11. Dispositif selon la revendication 10,
    dans lequel
    l'entraînement (41) comprend un arbre d'entraînement commun (45) pour toutes les bandes de matériau (19) et comprend, sur l'arbre d'entraînement (45), un rouleau de transport (47) propre pour chaque bande de matériau (19), un accouplement (43) respectif agissant entre les rouleaux de transport et l'arbre d'entraînement (45), et/ou
    l'accouplement (43) est réalisé sous forme d'accouplement magnétique, et/ou
    l'accouplement (43) est réglable à différentes valeurs seuil pour la transmission de la force ou du couple de rotation.
  12. Dispositif selon la revendication 10 ou 11,
    dans lequel
    le taux de transport de l'entraînement (41) est adapté au déroulement de telle sorte que toutes les bandes de matériau (19) sont toujours maintenues sous tension, et/ou
    une valeur constante est prédéfinie ou prédéfinissable pour le taux de transport de l'entraînement (41), et
    en particulier, la valeur constante est supérieure au plus grand taux de déroulement attendu pour l'application respective.
  13. Dispositif selon l'une des revendications 10 à 12,
    dans lequel
    le taux de transport de l'entraînement (41) est variable dans le temps et est ainsi réglable en fonction d'une mesure qui peut être dérivée d'un ou de plusieurs des taux de déroulement, et/ou
    l'entraînement (41) du moyen de transport (23) peut être coupé lorsque plus aucun entraînement de déroulement (21) n'est dans un état d'entraînement, et peut être remis en marche dès qu'au moins un entraînement de déroulement (21) se remet dans un état d'entraînement, et/ou
    l'entraînement (41) du moyen de transport (23) peut être commandé par un moyen de commande interne ou externe (39) en fonction des taux de déroulement des bandes de matériau individuelles (19), afin de varier le taux de transport.
  14. Dispositif selon l'une des revendications précédentes,
    dans lequel
    la réserve de matériau comprend un rouleau de matériau (17) monté de manière rotative, commun pour au moins deux voies (S), et
    pour la bande de matériau (19) du rouleau de matériau commun (17), il est prévu un moyen pour subdiviser la bande de matériau (19) en plusieurs bandes de matériau individuelles (19).
  15. Dispositif pour le tranchage en une ou plusieurs voies de produits alimentaires (11), en particulier trancheuse à haute performance,
    comportant une alimentation en produits (49) qui amène plusieurs produits à trancher (11) simultanément jusqu'à une zone de découpe dans laquelle une lame de coupe (51) se déplace en rotation et/ou en révolution afin de découper simultanément les produits amenés (11) en tranches (13), et un dispositif selon l'une des revendications précédentes pour fournir en plusieurs voies un matériau de feuille intermédiaire en forme de bande, dans lequel est prévu en particulier un moyen de commande commun (39) qui est réalisé pour coordonner individuellement par voie le tranchage des produits (11) et la fourniture du matériau de feuille intermédiaire.
EP18181280.1A 2017-07-03 2018-07-02 Fourniture de matériau de feuille intermédiaire en forme de bande à une zone de coupe Active EP3424854B1 (fr)

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CN110587841B (zh) * 2019-10-12 2024-05-31 青岛高测科技股份有限公司 一种适用于硬脆材料多线切割的四驱切片机机构

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