EP4212468A1 - Dispositif de coupe pour papier de cuisson - Google Patents

Dispositif de coupe pour papier de cuisson Download PDF

Info

Publication number
EP4212468A1
EP4212468A1 EP22207590.5A EP22207590A EP4212468A1 EP 4212468 A1 EP4212468 A1 EP 4212468A1 EP 22207590 A EP22207590 A EP 22207590A EP 4212468 A1 EP4212468 A1 EP 4212468A1
Authority
EP
European Patent Office
Prior art keywords
guide
cutting device
guide profile
operating element
section
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.)
Pending
Application number
EP22207590.5A
Other languages
German (de)
English (en)
Inventor
Beat FORRER
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.)
Star Foil Systems AG
Original Assignee
Star Foil Systems 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 Star Foil Systems AG filed Critical Star Foil Systems AG
Publication of EP4212468A1 publication Critical patent/EP4212468A1/fr
Pending legal-status Critical Current

Links

Images

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
    • 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
    • B26D1/04—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 linearly-movable cutting member
    • B26D1/045—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 linearly-movable cutting 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
    • 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
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/10—Hand or foot actuated means
    • 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
    • B26D7/0006—Means for guiding the cutter
    • 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
    • B65H35/06—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 blade, e.g. shear-blade, cutters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5151—Cutting handled material transversally to feeding direction
    • B65H2301/51512—Cutting handled material transversally to feeding direction using a cutting member moving linearly in a plane parallel to the surface of the web and along a direction crossing the 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
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
    • B65H2402/44—Housings
    • B65H2402/443—Housings with openings for delivering material, e.g. for dispensing webs

Definitions

  • the invention relates to a cutting device for baking paper according to the preamble of patent claim 1.
  • Dispenser housings can be, for example, simple cardboard boxes, or they can include sturdier containers made, for example, of plastic or metal, which can be fitted with spare rolls when the film supply is exhausted. Dispenser housings have a removal opening through which an end section of the rolled-up sheet material can be pulled out of the container and separated from the film supply by means of a separating device.
  • separating devices can comprise a cost-effective toothed tear-off edge.
  • the film In order to cut off an end section of the film strip that has been pulled out of the dispenser housing, the film is pulled against the cutting teeth. The cutting teeth penetrate the film strip and the end section can be torn off along the perforation line. The fabric is often not separated along a line as desired.
  • Baking paper and aluminum foil can easily tear in unwanted places due to the forces acting when separating.
  • Cling films made of plastic can be warped or inelastically stretched in different places when they are cut off.
  • areas of severed sections of plastic films can adhere to one another in an undesired manner due to van der Waals forces.
  • separating devices can comprise a cutting device with a blade that can be displaced in a guided manner.
  • a film dispenser which comprises a housing with a removal opening through which an end section of a film can be pulled out of the housing.
  • the film is stored rolled up on a core sleeve in the housing.
  • a separator is attached to the top edge of a front wall of the housing.
  • the separating device comprises a guide profile and a knife mounted on the guide profile and displaceable in its longitudinal direction.
  • the guide profile comprises two opposing wall sections, which laterally delimit a guide channel with a longitudinal gap arranged at the top. Adjacent to the longitudinal gap, the guide profile includes laterally protruding edge areas or shoulders.
  • the knife comprises a guide body, which is guided and slidably mounted in the guide channel, and an operating element arranged above the guide channel, the guide body and the Control element via a neck and a blade that protrude through the guide gap, are connected to each other.
  • a foil resting on the shoulders of the guide profile can be severed.
  • the tops of the shoulders define the cutting plane.
  • these may include an adhesive layer.
  • the flat underside of the control element has good gliding properties relative to the foil and a low coefficient of friction.
  • the cutting device comprises outstanding structures on the underside or the sole of the operating element.
  • These structures are preferably rounded support bodies with which the operating element or the knife is supported on the shoulders of the guide profile.
  • the transmission of the contact or pressure force from the knife to the guide profile essentially only takes place in the area of the support body. If a section of baking paper or a flat structure in general that is to be separated lies on the shoulders of the guide profile, this flat structure is held clamped between the support bodies and the shoulders of the guide profile when the knife is moved. This has the effect that the fabric is fixed during cutting in a close vicinity of the blade and by the force of the Cutting edge cannot slip significantly.
  • the supporting bodies can comprise longitudinal ribs or sections of longitudinal ribs which are arranged parallel to the plane of the blade on both sides adjacent to the blade. Preferably such rib portions are only located close to the cutting edge(s) of the blade so that they do not extend the full length of the sole. As a result, the pressing force of the support body in the area of the cutting edge used can be increased when cutting.
  • a rib portion may be disposed transversely of that cutting edge. This section of rib supports an even pressing of the fabric onto both shoulders of the guide profile. In addition, it protects against injuries, since it is arranged in the respective cutting direction in front of the free section of the cutting edge of the blade that is not embedded in the operating element.
  • the overall height of this free area of the cutting edge is preferably on the order of about 3 mm to about 6 mm and is therefore comparatively large. This makes it easier for different fabrics Cutting and favors the cutting of these fabrics.
  • the height of the guide body is usually smaller than that of the free area of the cutting edge. For example, it can be of the order of 1 to 3 mm. As a result, the overall height of the guide channel and thus the space requirement and the amount of material for the entire cutting device can be kept comparatively small.
  • the guide body and a central neck between the guide body and the operating element are T-shaped in cross section.
  • the guide body comprises an essentially rectangular plate which is rigidly connected to the control element via the neck.
  • the guide channel can also have a T-shaped cross section matching those of the guide body and the neck of the knife.
  • the wall of the guide channel can comprise inwardly protruding ribs or webs which form a section with a C-shaped cross section in the guide channel for guiding the plate-shaped guide body.
  • the guide plate is slidably mounted with only a small amount of play along these structures of the guide channel. This reliably prevents the knife from tilting or jamming when being moved.
  • the cutting edge of the blade is inclined at a cutting angle, which is preferably less than 45° and can be, for example, of the order of about 15° to about 35° and in particular can be about 28°.
  • the blade is designed to be essentially mirror-symmetrical with respect to two opposite cutting directions. It can comprise a blade with two mirror-symmetrically arranged cutting edges or, alternatively, two mirror-symmetrically arranged blades, each with one cutting edge. This enables the sheet to be cut in the two opposite directions of displacement of the knife.
  • the operating element comprises an insertion area which adjoins the respective cutting edge and has an inclined stop surface. When the knife is moved, this causes the edge area of the fabric to be separated to be reliably fed to the cutting edge of the blade.
  • the control element comprises a handle on its upper side with two concave bulges starting from a central peak.
  • the shape of the handle means that when the knife is moved in the respective cutting direction, a force is also exerted orthogonally to the cutting direction in the direction of the shoulders of the guide profile and a torque is exerted on the operating element. This leads to an additional Pressure force of the front support body in the direction of displacement.
  • the clamping force with which the fabric is pressed against the shoulders of the guide rail during cutting is greatest in the vicinity of the respective cutting edge.
  • the fabric is accordingly fixed particularly well at the cutting edge of the blade, ie there where the cutting edge exerts a force on the fabric.
  • the tops of the shoulders of the guide rail are anti-slip. This can be achieved, for example, with a strip of soft PVC.
  • the static friction between the fabric and the shoulders of the guide rail is particularly high during cutting due to the pressing force of the operating element and the high coefficient of friction of the adhesive strips.
  • the guide profile can comprise, for example, two holding means which are spaced apart from one another transversely to the longitudinal direction.
  • a first clamping profile can be arranged, for example, as a holding means on the underside of the wall of the guide channel and designed to be pushed onto an edge of the dispenser housing.
  • a further holding means can be, for example, a broadened area of one of the shoulders, which is designed to be clamped to a support rod of the dispenser housing.
  • the adhesive strip can also be made wider. This further improves the adhesion of the fabric when cutting.
  • the fixing of the flat structure during cutting can be additionally supported in that an edge section of a hinged cover of the dispenser housing in the closed position presses the flat structure against the broader adhesive strip.
  • the fabric can thus be prevented from locally slipping along almost the entire cutting line during cutting. This facilitates the formation of straight cutting lines.
  • the shoulders can include wall sections of the guide profile that protrude laterally outwards and/or inwards.
  • FIG. 1 shows a cutting device 3 in a foil dispenser with a dispenser housing 1.
  • the cutting device 3 comprises a guide profile 5, which is fastened to the upper edge of a front wall of the dispenser housing 1, and a guide profile 5 that is displaceably mounted on this guide profile 5 in and against a displacement direction indicated by the arrow P Knife 7.
  • the dispenser housing 1 comprises a hinged cover 9, which is pivotally connected to the housing body about a pivot axis A arranged at the rear of the dispenser housing 1.
  • a roll with a wound onto a core 11 sheet 13 such as baking paper is rotatably mounted.
  • An end section of the flat structure 13 can be pulled out of the dispenser housing 1 through a removal opening between the hinged cover 9 and the guide profile 5 and separated by moving the knife 7 .
  • the knife 7 includes a control element 15, which has a at its top Handle having two concave gripping surfaces extending from a central crest and connected at the bottom via a narrow neck 17 to a guide body 19 in the form of an approximately rectangular plate.
  • the plate is arranged essentially parallel to the underside of the operating element 15 .
  • the plate 15 and the neck 17 have the shape of an inverted T.
  • the knife 7 also comprises two blades 21 which are anchored laterally in the neck 17 and in the operating element 15 at the top. Each blade 21 includes a cutting edge 23 which extends from a central area of the guide body 19 at the neck 17 to an edge area of the underside of the operating element 15 .
  • a single blade 21 with two cutting edges 23 could also be provided, which, as in figure 2 shown is anchored to the control element 15 and the neck 17.
  • Each blade 21 can be anchored, for example, in a known manner in the injection molding process by injecting or partially encapsulating with plastic.
  • portions of each blade 21 can be positively connected to the operating element 15 between two joined parts thereof.
  • Each cutting edge 23 encloses an angle of inclination ⁇ with the plate or the guide body 19, which is preferably of the order of about 30°.
  • the height H1 of the exposed area of each cutting edge 23 is, for example, about 5mm.
  • the height H2 of the guide body 19 or the thickness of the plate is significantly smaller and can be, for example, in the range from about 1.5 mm to about 2.5 mm.
  • Supporting elements 25 in the form of rib sections protrude from a flat, approximately rectangular section of the underside of the operating element 15, the height H3 of which is in the range from approximately 0.3 mm to approximately 1 mm and can be approximately 0.5 mm, for example.
  • the support elements 25 have a rounded cross section. This means that the surface comprises at least one convexly curved section and no sharp edges.
  • Cross sections of support elements 25 preferably have at least approximately the shape of segments of a circle.
  • each cutting edge 23 is each surrounded by three rib sections arranged in a U-shape, one of which is arranged transversely to the respective displacement direction P of the blade 7 .
  • the lengths L1 of each of the adjacent rib sections arranged parallel to the displacement direction P of the knife 7 are shorter than half the overall length L of the operating element 15 and preferably shorter than half the length of the essentially rectangular underside of the operating element 15. Between these rib sections, the Bottom of the control element without a central area excellent ribs.
  • This central area has a length L2, which is preferably greater than the length L1 of the adjacent rib sections.
  • the length L1 can, for example, be on the order of about 4 mm to about 8 mm and in particular can be about 6 mm.
  • the length L2 is preferably 1.5 to 2.5 times as long as L1. This enables an optimal concentration of the pressing force of the operating element 15 when cutting the fabric 13.
  • the overall length L of the operating element 15 is in the range from about 35mm to about 50mm and its height H in the range from about 12mm to about 18mm. This ensures that the blade 7 can be easily moved, that sufficient pressure can be exerted on the flat structure 13 in the area of the cutting edge 23, and that the space required for parking the blade 7 in one of the end regions of the guide profile 5 next to the flat structure 13 is comparatively small.
  • the length of the guide body 19 is preferably approximately the same length as the underside of the control element 15. This corresponds to the sum 2L1+L2.
  • figure 4 shows a section of the cutting device 3, the guide body 19 of the knife 7 being displaceable in a guide channel 27 of the guide profile 5 is stored.
  • figure 4 shows a cross section of such an arrangement, with the cutting device 3 as in figure 1 shown attached to a dispenser housing 1.
  • the guide profile 5 below the guide channel 27 comprises a clamping profile 29 with a U-shaped cross section, which can be pushed onto the upper edge of a front wall 2 of the dispenser housing 1 .
  • At least one of the legs of the clamping profile 29 can include a locking rib 30 protruding inwards or a corresponding other locking element for form-fitting attachment to a folded or flanged edge of the housing wall.
  • Ribs 31 protrude on the inside of opposite wall sections of the guide channel 27 and define a structure with a C-shaped cross section in the lower section of the guide channel 27 for receiving the guide body 19 .
  • sections of the wall of the guide channel 27 are arched or inclined in such a way that they delimit a guide gap at the upper end, the width of which corresponds approximately to the width of the neck 17, so that the blade 7 can move along the guide profile 5 with little play transversely to the direction of displacement P can be moved.
  • the guide profile 5 Adjacent to the upper wall sections, the guide profile 5 comprises shoulders 33 protruding laterally outwards, the inner shoulder 33 being wider and comprising a downwardly protruding, elastically deformable end region 35 .
  • the guide profile 5 is attached to the dispenser housing 1 by the clamping profile 29 being pushed onto the front wall 2 .
  • the end region 35 of the inner shoulder 33 is first elastically deformed and then snaps into an end position in which it holds the guide profile 5 on the support bar.
  • the guide profile 5 is supported on the front wall 2 and on the support bar 4 arranged parallel to the upper edge of the front wall 2 .
  • Each of the shoulders 33 includes an adhesive strip 37 on its top, for example a strip of coextruded or otherwise attached soft PVC.
  • the support elements 25 of the operating element 15 are arranged in such a way that a section of the fabric 13 resting on the shoulders 33 is pressed against the adhesive strips 37 by the contact pressure of the support elements 25 during cutting.
  • the flat structure 13 can be fixed by the end region of the hinged cover 9 resting on the flat structure 13 in the region of the inner adhesive strip 37 .
  • this dispenser housing 1 is also part of the cutting device 3, since it comprises parts that interact with the guide profile 5 and the knife 7.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
EP22207590.5A 2022-01-18 2022-11-15 Dispositif de coupe pour papier de cuisson Pending EP4212468A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH000057/2022A CH719366A2 (de) 2022-01-18 2022-01-18 Schneidvorrichtung für Backpapier.

Publications (1)

Publication Number Publication Date
EP4212468A1 true EP4212468A1 (fr) 2023-07-19

Family

ID=84358225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22207590.5A Pending EP4212468A1 (fr) 2022-01-18 2022-11-15 Dispositif de coupe pour papier de cuisson

Country Status (2)

Country Link
EP (1) EP4212468A1 (fr)
CH (1) CH719366A2 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933172A2 (fr) * 1998-01-31 1999-08-04 Avery Dennison Office Products(UK) Ltd. Dispositif de coupe de papier
CH699230A2 (de) 2008-07-17 2010-01-29 Alu Vertriebsstelle Ag Foliendispenser und Trennvorrichtung für Folien.
CH708564A2 (de) * 2013-09-13 2015-03-13 Alu Vertriebsstelle Ag Foliendispenser.
EP3199471A1 (fr) * 2016-01-29 2017-08-02 Alu-Vertriebsstelle Ag Dispositif de coupe et distributeur de feuilles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933172A2 (fr) * 1998-01-31 1999-08-04 Avery Dennison Office Products(UK) Ltd. Dispositif de coupe de papier
CH699230A2 (de) 2008-07-17 2010-01-29 Alu Vertriebsstelle Ag Foliendispenser und Trennvorrichtung für Folien.
CH708564A2 (de) * 2013-09-13 2015-03-13 Alu Vertriebsstelle Ag Foliendispenser.
EP3199471A1 (fr) * 2016-01-29 2017-08-02 Alu-Vertriebsstelle Ag Dispositif de coupe et distributeur de feuilles

Also Published As

Publication number Publication date
CH719366A2 (de) 2023-07-31

Similar Documents

Publication Publication Date Title
EP0575026A1 (fr) Dispositif de serrage
DE3640704C2 (fr)
DE102009016630B4 (de) Foliendispenser und Trennvorrichtung für Folien
DE3926013C2 (de) Vorrichtung zum Schneiden von Obst, Gemüse oder dergleichen in Scheiben
DE2849457C2 (de) Vorrichtung zur Aufnahme von mindestens einer Papier-, Vlies-, Folienrolle o.dgl.
EP4212468A1 (fr) Dispositif de coupe pour papier de cuisson
DE102014002065A1 (de) Schneidevorrichtung zum Durchtrennen der Abdeckschicht eines Klebebandes
CH624628A5 (fr)
DE19548336C2 (de) Nachfüllbare Spendervorrichtung für eine oder mehrere nebeneinander angeordnete Papier-, Vlies- und/oder Folienrollen
AT397364B (de) Gerät zum schneiden von isolationsmaterial
DE1946081C3 (de) Abgabebehälter für eine insbesondere der Analhygiene dienende, angefeuchtete Stoffbahn
EP0650459B1 (fr) Dispositif de reception de rouleaux de pellicules et de coupe de sections de la pellicule
DE19629795C2 (de) Spender für elastisches Flächenmaterial
DE2506637C3 (de) Aufreihvorrichtung für Sammelmappen, insbesondere Schnellheftermappen
DE2204402C3 (de) Vorrichtung zum Trennen einer Vliesbahn
EP1731462B1 (fr) Distributeur de matériau en feuille
DE2048684A1 (de) Kassette zum Aufbewahren und Abziehen von Bandrollen
EP0201594A1 (fr) Dispositif de reclassement cyclique d'une pile de feuilles rectangulaires ou carrees.
DE4021735A1 (de) Spaltvorrichtung fuer folien und baender und dergleichen
WO1995004694A1 (fr) Dispositif de decoupage pour distributeur de feuilles
AT392164B (de) Bildbetrachtungsgeraet
EP1184319B1 (fr) Dispositif pour couper une bande de papier et/ou de film à partir d'un rouleau
DE19830776C2 (de) Klebeband-Abroller mit geneigter Schneidvorrichtung
DD297106A5 (de) Vorrichtung zum schneiden von obst, gemuese oder dergleichen in scheiben
WO2008080615A2 (fr) Procédé et dispositif pour permettre à des feuilles d'être classées

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20240110

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR