WO2021123034A1 - Dispositif et procédé de coupe d'éléments filtrants circulaires à partir d'un matériau en bande - Google Patents

Dispositif et procédé de coupe d'éléments filtrants circulaires à partir d'un matériau en bande Download PDF

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Publication number
WO2021123034A1
WO2021123034A1 PCT/EP2020/086844 EP2020086844W WO2021123034A1 WO 2021123034 A1 WO2021123034 A1 WO 2021123034A1 EP 2020086844 W EP2020086844 W EP 2020086844W WO 2021123034 A1 WO2021123034 A1 WO 2021123034A1
Authority
WO
WIPO (PCT)
Prior art keywords
support surface
blade
circular
strip material
hold
Prior art date
Application number
PCT/EP2020/086844
Other languages
German (de)
English (en)
Inventor
Thomas REGEZ
René SCHEIDEGGER
Original Assignee
Rychiger Ag
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 Rychiger Ag filed Critical Rychiger Ag
Publication of WO2021123034A1 publication Critical patent/WO2021123034A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3846—Cutting-out; Stamping-out cutting out discs or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • 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
    • B26D1/14—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 circular cutting member, e.g. disc cutter
    • B26D1/20—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 circular cutting member, e.g. disc cutter coacting with a fixed member
    • B26D1/205—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 circular cutting member, e.g. disc cutter coacting with a fixed member for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/45—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 the movement of which is not covered by any preceding group
    • B26D1/455—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 the movement of which is not covered by any preceding group for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction
    • 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
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/02—Packaging of substances, e.g. tea, which are intended to be infused in the package
    • B65B29/022—Packaging of substances, e.g. tea, which are intended to be infused in the package packaging infusion material into capsules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • B65B3/027—Making containers from separate body and end-parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • B26D5/04—Means for moving the cutting member into its operative position for cutting by fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/8043—Packages adapted to allow liquid to pass through the contents

Definitions

  • the present application relates to a device and a method for cutting circular filter elements, in particular filter elements for beverage capsules, from a strip material, in particular from a strip of fleece.
  • the present application also relates to an arrangement of such a device and a conveyor for beverage capsules, which enables a circular filter element to be cut, inserted and sealed in a beverage capsule.
  • the object of the invention is to create a device belonging to the technical field mentioned at the beginning with which filter elements can be cut from a strip material in a reliable manner, in particular from a strip of a fleece. Furthermore, the device should have a high clock frequency when cutting and be constructed as simply as possible.
  • the solution to the problem is defined by the features of claim 1.
  • the device for cutting circular filter elements has a support surface on which the strip material can lie flat. Furthermore, the device has a hold-down device that can be moved linearly in a first direction perpendicular to the support surface. In a first, open position, the hold-down device is spaced from the support surface.
  • the hold-down device In a second, closed position, the hold-down device is lowered onto the support surface, so that a strip material lying on the support surface is clamped between the hold-down device and the support surface. Furthermore, the device has a cutting element which can be moved linearly in the first direction and which has at least one blade for cutting the circular filter elements. The at least one blade can be moved by the linearly movable cutting element between a first position in which the at least one blade is spaced from the support surface and a second position in which the at least one blade is lowered onto the support surface. In the second position, the at least one blade rests on the support surface or on the strip material resting on the support surface.
  • the at least one blade is rotatably mounted about a first axis which is perpendicular to the support surface.
  • the device has a first drive with which the at least one blade can be set in rotation in order to cut the circular filter elements from the strip material lying on the support surface.
  • filter elements By using at least one rotating blade, filter elements can be cut reliably and quickly even from nonwoven materials, which are very difficult and unreliable to punch.
  • the filter elements are then preferably used in beverage capsules, in particular in coffee capsules.
  • the beverage capsules preferably contain, in a known manner, a powder for preparing a beverage, in particular a hot beverage such as coffee or tea.
  • the beverage can be produced by passing water and / or wet steam through the capsule, the powder being extracted by the water and / or by the wet steam.
  • the device preferably has at least one holder on which a roll of the strip material can be attached. Alternatively, the at least one holder can also be present independently of the device.
  • the holder or the device also preferably has a feed unit which feeds the strip material step by step to the support surface, so that new strip material can be pushed in after each production cycle of a filter element. Such feed units are known in the art.
  • the term “fleece” is understood to mean a structure made of fibers or filaments which are connected to one another without being crossed or intertwined with one another, as is the case, for example, in weaving, knitting, or the like.
  • the term “non-woven” is also used in this field for fleece.
  • the tape material is preferably a fleece made of cellulosic fibers and / or filaments. Alternatively, however, the tape material can also be a fleece made of polymer fibers and / or polymer filaments.
  • the support surface is preferably essentially parallel to a floor on which the device stands. Accordingly, the first direction is essentially vertical to the ground, that is to say in the perpendicular direction of gravity. In this case, the hold-down device moves from the first, open position at the top to the second, closed position at the bottom, and then back again.
  • the hold-down device is preferably moved along at least one linear guide from the first position to the second position and back again to the first position.
  • Linear guides suitable for this purpose are known to those skilled in the art, such as a rail guide or the like, for example.
  • the hold-down device is preferably heavy enough or is pressed onto the support surface with sufficient force that the strip material lying on the support surface is clamped in a non-slip manner between the support surface and the hold-down device.
  • the cutting element preferably has a circular blade which has a diameter which corresponds to the diameter of the circular filter elements to be cut with the device.
  • the at least one blade can also be designed as a round blade, the axis of rotation of which is parallel to the support surface and which can be rotated around the first axis at a distance that corresponds to half the diameter of the circular filter element to be cut out, so that the round blade in the second position can roll circularly on the support surface or a strip material lying thereon.
  • the at least one blade can be fixedly or alternatively releasably connected to the cutting element.
  • the advantage of a detachable connection is that circular filter elements with different diameters can be cut with the device without the need for a time-consuming conversion of the device.
  • the first distance and the second distance can be the same. However, the first and the second spacing are preferably of different sizes. This means that in the first position the at least one blade and the hold-down device are present at a distance from one another.
  • the hold-down device preferably has an opening through which the cutting element can be passed. With this configuration, the strip material lying on the support surface can be clamped around the at least one blade between the hold-down device and the support surface.
  • the first drive is preferably designed in such a way that it allows the rotational speed of the at least one blade to be varied.
  • a speed of rotation and / or an angle of rotation can be set with which the most optimal cutting result can be achieved.
  • the rotational speed can preferably be set by an operator on a control of the device.
  • the movement of the hold-down device and the cutting element is preferably carried out via a corresponding drive, the cutting element and the hold-down device each being able to have their own drive or, alternatively, can also be moved via the same drive.
  • the device preferably has more than one cutting element.
  • the device has several cutting elements, these are preferably arranged next to one another in such a way that the area of the strip material is used as efficiently as possible when the circular filter elements are cut. If the device has more than one cutting element, the device preferably has one hold-down device per cutting element. Alternatively, however, the device can have a single hold-down device for several or all of the cutting elements.
  • the device preferably has a second drive with which the cutting element can be moved linearly along the first direction, the second drive being designed in such a way that the at least one blade is pressed with a predefined force against the support surface or on the strip material lying thereon can be.
  • the predefined force can preferably be set by a surgeon on a control of the device.
  • the predefined force can be constant. Alternatively, however, the predefined force can also be a force curve, that is to say a force that changes over time.
  • the cutting element and the hold-down device are preferably fastened to a frame which can be moved in the first direction by the second drive.
  • the support surface preferably has a circular opening with a cutting edge, the circular opening being positioned and dimensioned in such a way that the at least one blade in the second position at least partially engages the circular opening. The interaction of the at least one blade and the circular opening enable the strip material to be sheared.
  • the hold-down device can preferably be moved linearly in the first direction relative to the frame, the hold-down device being pretensioned in the direction of the support surface by means of a spring force. As a result of this bias, the hold-down device is closer to the support surface in the first position relative to the at least one blade.
  • the hold-down and cutting element when the hold-down and cutting element are moved into the second position in front of the at least one blade, the hold-down strikes the strip material lying on the support surface, whereby it is already clamped between the hold-down and the support surface before the at least one blade hits the tape material lying on the support surface. Due to the movable arrangement of the hold-down relative to the frame, despite the hold-down already resting on the strip material, the cutting element with the at least one blade can be moved further in the direction of the support surface or, if there is a circular opening, the at least one blade can be partially moved further into it. With the spring element, the necessary force can be generated with which the hold-down device is pressed onto the strip material lying on the support surface. For example, at least one spiral or helical spring or a gas pressure spring can be used as the spring element.
  • the cutting element is rotatably attached to the frame by a roller bearing.
  • the roller bearing is preferably a ball bearing.
  • a smooth and low-maintenance rotatable fastening between the cutting element and the frame can be achieved.
  • the cutting element is preferably rotatably attached to the frame via a slide bearing.
  • the first drive and / or the second drive are preferably designed as a pneumatic drive, hydraulic drive, as an electromechanical drive and / or as a servomotor.
  • the device preferably has a plunger which runs centrally through the cutting element and which is linearly movable in the first direction relative to this, wherein the plunger can be moved into the circular opening in order to surround a circular filter element after cutting through the at least one Eject the blade through the circular opening.
  • a completely cut circular filter element can be removed from the strip material in a simple and quick manner. After moving the plunger out of the circular opening and moving the hold-down device and the cutting element back into the first position, the strip material can be moved further on the support surface so that a circular filter element can then be cut again.
  • the plunger preferably has at least one nozzle at one end facing the support surface, to which a negative pressure can be applied.
  • the device has a source of negative pressure, such as an air pump.
  • a negative pressure By applying a negative pressure, a circular filter element resting on the plunger can briefly hold onto the plunger centrally, so that the circular filter element does not slip away from the plunger or maintains its position and alignment on the plunger during ejection through the at least one circular opening.
  • the ram is preferably moved by its own drive, in particular by a pneumatic, hydraulic or electromechanical drive.
  • the ram is moved by a servomotor.
  • the device preferably has a shaped ring which lies below the circular opening in the direction of movement of the plunger when the circular filter element is ejected. Through this shaped ring, the circular filter element can through the Plunger are pressed and shaped, in particular an edge of the circular filter element can be bent.
  • the frame is preferably movably attached to a holder in the first direction, the frame being biased away from the holder in the direction of the support surface by a spring force and the holder being able to be moved linearly along the first direction by the second drive.
  • the motion of the hold-down device and of the cutting element with the at least one blade in the first direction can be realized with this embodiment by means of a single drive.
  • this configuration also enables a higher clock frequency when cutting circular filter elements, since only the inertia of the single second drive is significant when moving the two components.
  • the circular opening of the bearing surface is preferably arranged in a section of the bearing surface which is mounted so as to be pivotable in at least two directions relative to the remaining bearing surface.
  • the storage takes place in particular by means of air bearings.
  • the support surface has at least two sections, namely a section in which the circular opening is located and a section which forms the remainder of the support surface. If there are several circular openings, each of the circular openings is preferably arranged in a separate section.
  • the circular opening can be pivoted, it can optimally rest against the blade so that the smoothest possible cut is possible. Any offset between the blade and the circular opening can thus be easily compensated for.
  • the use of air bearings enables the section of the support surface to be supported as simply and easily as possible. Alternatively, however, other bearings can also be used. Corresponding sealing lips are arranged between the section and the rest of the support surface for air storage.
  • the blade is preferably a circular blade, with an outer surface of its cutting edge being rounded. The outer surface of the cutting edge is particularly preferably in the form of a spherical segment.
  • the cutting edge of the circular blade preferably extends over 360 ° around the first axis.
  • the inner surface of the cutting edge that is to say the surface which is directed towards the first axis, is preferably straight and parallel to the first axis.
  • the outer surface is correspondingly the surface of the cutting edge which is directed away from the first axis. This outer surface is preferably rounded.
  • the rounding is preferably a spherical segment.
  • the radius of the spherical segment is preferably selected such that it is larger than the radius of the circular blade.
  • the origin of the spherical segment is preferably on the first axis.
  • the present application also relates to a method for cutting circular filter elements, in particular filter elements for beverage capsules, from a strip material, in particular from a strip of a fleece.
  • the method comprises placing a strip material on a support surface, in particular on a support surface of a device as described above.
  • a hold-down device is moved in a first direction, which is perpendicular to the support surface, from a first, open position, in which the hold-down device is spaced from the support surface at a first distance, into a second, closed position. In the second position, the hold-down device is lowered onto the support surface, so that the strip material is clamped between the hold-down device and the support surface.
  • a cutting element with at least one blade is moved in the first direction from a first position, in which the at least one blade is spaced from the support surface at a second distance, into a second position, in which the at least one blade is on the support surface is lowered, moved so that the at least one blade rests on the strip material.
  • the at least one blade is then rotated by a first drive about a first axis which is parallel to the first direction in order to cut the circular filter elements from the strip material lying on the support surface.
  • the movements of the hold-down device and of the cutting element take place at least partially simultaneously.
  • the cutting element is preferably moved by a second drive, the at least one blade being pressed onto the strip material with a predefined force during the rotation.
  • the at least one blade preferably rotates 360 ° around the first axis. More preferably, however, the at least one blade rotates from 20 ° to 50 °, in particular from 30 ° to 40 °, about the first axis in order to cut a circular filter element. Cutting the circular filter elements by means of such a rotation angle can be achieved by optimally setting the force with which the at least one blade presses on the strip material.
  • a very short clock frequency for creating a circular filter element can be achieved, in particular a clock frequency of 1/60 of a second.
  • the circular filter element is preferably ejected into a circular opening in the support surface by a ram which runs centrally through the cutting element and which is moved along the first direction.
  • the circular filter element is preferably pressed through a shaped ring when it is ejected by the plunger, so that the circular filter element, which is essentially flat after being cut from the strip material, can be shaped or bent. In particular, an edge of the circular filter element can be bent over in this way.
  • the present application also relates to an arrangement with a device according to the above description and a conveying means for beverage capsules, in particular coffee capsules.
  • the arrangement also has transfer means with which circular filter elements cut by the device can be transferred from the device into the beverage capsules.
  • the conveying means is preferably a conveyor belt or a link conveyor.
  • the conveyor can also be designed as a circular conveyor plate or as a rotary indexing table.
  • the conveying means has in particular openings or depressions, in each of which a beverage capsule can be inserted.
  • the transfer means preferably comprise a circular opening in the support surface and a ram of the device, the conveying means being arranged in such a way that the beverage capsules are moved through under the circular opening.
  • the transfer means further comprise a pumping device for a beverage capsule, which is arranged below the circular opening and concentrically therewith, wherein the pumping device lifts a beverage capsule out of the conveying means essentially up to the circular opening, so that a cut circular filter element by means of the pusher through the circular Opening can be pushed into the beverage capsule.
  • the plunger preferably has at least one sealing means with which a circular filter element can be sealed with a beverage capsule.
  • the at least one sealing means is preferably designed as an ultrasonic sonotrode, which makes it possible to seal the circular filter element to the beverage capsule by means of ultrasonic welding.
  • the at least one sealing element can also be a meat element, with which the circular filter element can be heat-sealed with the beverage capsule.
  • the arrangement preferably also has a shaped ring, which is arranged below the circular opening in such a way that a circular filter element ejected by the plunger is pressed through this shaped ring so that the circular element, which is essentially flat after cutting, is at least partially shaped.
  • a circular filter element ejected by the plunger is pressed through this shaped ring so that the circular element, which is essentially flat after cutting, is at least partially shaped.
  • an edge of the circular filter element can be bent upward through the shaped ring.
  • 1 shows an embodiment of a device according to the invention for cutting circular filter elements as a sectional drawing
  • 2 shows an embodiment of an arrangement according to the invention as a side elevation in a first situation, which corresponds to the first step of the method according to the invention
  • FIG. 3 shows the arrangement according to FIG. 2 in a second situation, which corresponds to the last step of the method according to the invention
  • FIG. 4 shows a detailed illustration of a cutting element with a circular blade as a sectional image
  • FIG. 5 shows a sectional view of a detail of a support surface with a pivotably mounted partial surface.
  • the device 1 shows an embodiment of a device 1 according to the invention for cutting circular filter elements as a sectional drawing.
  • the device 1 comprises a support surface 5 on which a strip material can rest (see FIGS. 2 & 3).
  • the device 1 further comprises a hold-down 7 and a cutting element 8.
  • the cutting element 8 has a blade 9 which is directed towards the support surface 5 and which is circular in the embodiment shown.
  • the hold-down device 7 can be moved in a first direction X, which is at right angles to the support surface 5. 1 shows the hold-down 7 in a first, open position, in which the hold-down is spaced apart from the support surface 5 at a first distance.
  • the Hold-down device 7 can be moved into a second, closed position (see FIG. 3), in which hold-down device 7 rests on support surface 5, so that a strip material that rests on support surface 5 is clamped between hold-down device 7 and support surface 5 is.
  • the hold-down 7 is movably attached in the first direction X to a frame 11 via a first linear guide 17.
  • the first linear guide 17 has a spring element which biases the hold-down 7 in the shown first, open position in the direction of the support surface 5.
  • the cutting element 8 is connected to the frame 11 via a roller bearing 10, which is designed as a ball bearing in the embodiment shown, so that the cutting element 8 relative to the frame 11 about a first axis A, which is parallel to the first direction X, is rotatable.
  • the rotary movement of the cutting element 8 and with it also the blade 9 takes place by means of a first drive 19.
  • the cutting element 8 is arranged centrally in a recess of the hold-down 7, so that the hold-down 7 extends around the cutting element 8.
  • the frame 11 is connected to a fold 12 so as to be linearly displaceable in the first direction X.
  • the frame 11 is connected to the folding 12 via two pneumatic cylinders 18.1, 18.2. With these pneumatic cylinders 18.1, 18.2, the frame 11 can be moved back and forth away from the support surface 5 in the first direction X. Simultaneously with the movement of the frame 11, the hold-down 7 and the cutting element 8 with the blade 9 move.
  • the first distance between the support surface 5 and the hold-down 7 is smaller than a second distance between the support surface 5 and the blade 9. This means that when the frame 11 moves towards the support surface 5, the hold-down 7 is in front of the Blade 9 strikes the support surface 5 or a strip material resting on it. Because the hold-down 7 is movably attached relative to the frame 11, after the hold-down 7 strikes the support surface 5 or a strip material resting on it, the frame 11 and with this the cutting element 8 with the blade 9 can be moved further in the direction of the support surface 5 until the blade 9 also rests on the support surface 5.
  • the support surface 5 has a circular opening 13 which is arranged concentrically to the blade 9, which is circular in this embodiment.
  • the circular opening 13 has on its edge, which is directed towards the frame 11, a cutting edge 14 which is plane with the surface of the support surface 5.
  • the cutting edge 14 and the blade 9 are designed in such a way that the blade 9 can partially move into the circular opening 13 so that a strip material lying on the support surface 5 is sheared between the blade 9 and the cutting edge 14.
  • the device further comprises a ram 16 which is arranged centrally within the cutting element 8 and the hold-down 7.
  • the plunger 16 has a drive with which it can be moved linearly in the first direction X.
  • the ram 16 is driven by a third drive (not shown).
  • a circular filter element cut by the device 1 can be ejected through the circular opening 13 (see FIG. 3).
  • the circular opening 13 also has a shaped ring 15 with which a circular filter element can be shaped in combination with the plunger 16 or a punch 20 arranged at its end.
  • the plunger 16 and the plunger 20 have a nozzle 21 which is connected to a fluid channel 22 which is guided within the plunger 16 and the plunger 20, so that a negative pressure can be applied to the nozzle 21.
  • a circular filter element resting on the plunger 22 of the plunger 16 is sucked onto the plunger 22, with which this can be secured against slipping or slipping.
  • FIG. 2 shows an embodiment of an arrangement 2 according to the invention, which comprises a device 1 according to FIG. 1, in a side elevation.
  • the arrangement 2 also has a conveyor 3.
  • the conveyor 3 is in the embodiment shown as Formed segment conveyor in which a plurality of segments 23.1, 23.2, 23.2, three of which can be seen in FIG. 2, are joined together to form an endless belt.
  • Each segment 23.1, 23.2, 23.2 has two openings 25.1-25.4, in each of which a beverage capsule 24.1, 24.2, 24.3 can be inserted.
  • the beverage capsules 24.1, 24.2, 24.3 are coffee capsules which are filled with coffee powder in a later production step.
  • the conveying means 3 is arranged such that the beverage capsules 24.1, 24.2, 24.3 are carried out below the support surface 5 of the device 1, the conveying means 3 being positioned in such a way that when the beverage capsules 24.1, 24.2, 24.3 are conveyed, one capsule each time is concentric below the circular opening 13 is located.
  • the arrangement 2 also has a pumping device 4 which has a recess 26 in which a beverage capsule 24.1, 24.2, 24.3 can be received.
  • the flow device 4 is arranged in such a way that the recess 26 is concentric with the circular opening 13.
  • a beverage capsule 24.1, 24.2, 24.3 can be lifted from the opening 25.1-25.4 of the conveying means 3 in which it is located in the direction of the circular opening 13 (see FIG. 3).
  • FIG. 2 it can also be seen that a strip material 6, which in particular consists of a fleece, is placed on the support surface 5.
  • the hold-down 7 and the cutting element 8 with the blade 9 are in the first, open position.
  • the situation of the arrangement according to FIG. 2 corresponds to the first step of the method according to the invention.
  • FIG. 3 shows the arrangement 2 from FIG. 2 in a situation in which the hold-down 7 and the cutting element 8 with the blade 9 are in the second, closed position, with the band material 6 between the support surface 5 and the hold-down 7 is clamped.
  • the conveying means 3 has moved so that a first beverage capsule 24.2 is located in a recess 26 in the flow device 4 and in the circular opening 13.
  • the circular filter element 27 cut from the strip material 6 was pushed by a movement of the plunger 16 through the circular opening 13 and into the first beverage capsule 24.2, which was lifted by the pumping device 4 in the direction of the circular opening 13.
  • the circular element was pressed through the form ring 15 and thereby additionally shaped.
  • the edge of the circular filter element 27 has been bent upwards so that it can be more easily attached to the wall of the first beverage capsule 24.2 along its circumference.
  • the circular filter element 27 was sealed to the first beverage capsule 24.2 by ultrasonic welding.
  • the plunger 16 is designed as an ultrasonic sonotrode.
  • This situation corresponds to a last step of the method according to the invention.
  • the ram 16 is then withdrawn and the hold-down 7 and the cutting element 8 with the blade 9 are moved into the first position.
  • the strip material 6 is then moved a predefined distance over the support surface 5 and the conveying means 3, so that a second capsule 24.1 is concentric to the circular opening 13 and to the recess 26 of the flow device 4. Then the process goes back to the first step.
  • FIG. 4 shows a detailed illustration of a cutting element 8 with a circular blade 9 as a sectional image.
  • the circular blade 9 has a cutting edge 28, the outer surface 29 of which is in the form of a spherical segment.
  • the origin 30 of the ball lies on the first axis A.
  • the radius 31 of the ball 32, the course of which is indicated below the cutting element 8, is larger than the radius of the circular blade 9.
  • FIG. 5 shows a sectional view of a detail of a support surface 5 with a pivotably mounted partial surface 33 in which the circular opening 13 is arranged.
  • the partial surface 33 is air-bearing.
  • an air chamber 36 is arranged circumferentially below the partial surface 33 and the circular opening 13, the air chamber 36 via a circumferential radial seal 34 and a circumferential axial seal 35 opposite the support 5 or a substructure 37 of the support 5 sealed. Due to the air bearing, the partial surface can be pivoted freely about two axes, so that an optimal fit between the blade 9 and the edge of the circular opening 13 is always made possible.
  • the spherical radius 31 can be 17.5 mm, while the radius of the circular blade 9 is 10.5 mm.

Abstract

La présente demande concerne un dispositif de coupe d'éléments filtrants circulaires à partir d'un matériau en bande. Le dispositif présente une surface de support sur laquelle le matériau en bande peut reposer à plat. Le dispositif comprend également un moyen de retenue qui est mobile linéairement dans une première direction disposée perpendiculairement à la surface de support. Dans une première position ouverte, le moyen de retenue est éloigné de la surface de support. Dans une seconde position fermée, le moyen de retenue est abaissé sur la surface de support de telle sorte qu'un matériau en bande reposant sur la surface de support soit serré entre le moyen de retenue et la surface de support. Le dispositif comprend également un élément de coupe qui est mobile linéairement dans la première direction et qui comporte au moins une lame pour couper les éléments filtrants circulaires. La ou les lames peuvent être déplacées par l'élément de coupe mobile linéairement entre une première position, dans laquelle la ou les lames sont espacées de la surface de support et une seconde position, dans laquelle la ou les lames sont abaissées sur la surface de support. Dans la seconde position, la ou les lames reposent contre le matériau en bande reposant sur la surface de support. La ou les lames sont montées de manière à pouvoir tourner autour d'un premier axe qui est disposé perpendiculairement à la surface de support. Le dispositif présente un premier entraînement au moyen duquel l'au moins une lame peut être mise en rotation afin de découper les éléments filtrants circulaires à partir du matériau en bande reposant sur la surface de support. La présente demande concerne également un procédé de production d'éléments filtrants circulaires et un agencement comprenant un dispositif selon la description ci-dessus, un moyen de transport et un dispositif de levage.
PCT/EP2020/086844 2019-12-20 2020-12-17 Dispositif et procédé de coupe d'éléments filtrants circulaires à partir d'un matériau en bande WO2021123034A1 (fr)

Applications Claiming Priority (2)

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CH01679/19 2019-12-20
CH01679/19A CH716982A1 (de) 2019-12-20 2019-12-20 Vorrichtung und Verfahren zum Schneiden von kreisförmigen Filterelementen aus einem Bandmaterial.

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WO2021123034A1 true WO2021123034A1 (fr) 2021-06-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113699777A (zh) * 2021-09-01 2021-11-26 陈子彬 一种可以调节圆形切割布料装置
CN113734502A (zh) * 2021-09-18 2021-12-03 淄博旺辰工贸有限公司 一种全自动玻璃制瓶机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343289A (en) * 1976-09-30 1978-04-19 Fuji Photo Film Co Ltd Circular cutting device
DE29911914U1 (de) * 1999-07-13 1999-09-09 Hoefliger Harro Verpackung Vorrichtung zum Herauslösen von Teilbereichen aus einem bahnartigen Folienmaterial
EP2412645A1 (fr) * 2010-07-28 2012-02-01 Samar Technologies Ltd. Capsule d'infusion pré-remplie, procédé de fabrication et dispositif associé
WO2013134885A1 (fr) * 2012-03-15 2013-09-19 Rychiger Ag Appareil et procédé de fabrication de filtres et d'introduction des filtres dans des capsules monodoses pour préparer des boissons
WO2016001883A1 (fr) * 2014-07-04 2016-01-07 Sarong S.P.A. Machine et procédé pour fabriquer des capsules pour boissons

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343289A (en) * 1976-09-30 1978-04-19 Fuji Photo Film Co Ltd Circular cutting device
DE29911914U1 (de) * 1999-07-13 1999-09-09 Hoefliger Harro Verpackung Vorrichtung zum Herauslösen von Teilbereichen aus einem bahnartigen Folienmaterial
EP2412645A1 (fr) * 2010-07-28 2012-02-01 Samar Technologies Ltd. Capsule d'infusion pré-remplie, procédé de fabrication et dispositif associé
WO2013134885A1 (fr) * 2012-03-15 2013-09-19 Rychiger Ag Appareil et procédé de fabrication de filtres et d'introduction des filtres dans des capsules monodoses pour préparer des boissons
WO2016001883A1 (fr) * 2014-07-04 2016-01-07 Sarong S.P.A. Machine et procédé pour fabriquer des capsules pour boissons

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113699777A (zh) * 2021-09-01 2021-11-26 陈子彬 一种可以调节圆形切割布料装置
CN113699777B (zh) * 2021-09-01 2022-07-01 陈子彬 一种可以调节圆形切割布料装置
CN113734502A (zh) * 2021-09-18 2021-12-03 淄博旺辰工贸有限公司 一种全自动玻璃制瓶机

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