# US 9,003,745 B2 · Working station with a cutting tool for quickly cutting a width of film > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,003,745 B2 - Document ID: US9003745B2 - Status: Granted - Kind: B2 - Application number: 13/336,440 - Filed: 2011-12-23 - Published: 2012-06-28 - Granted: 2015-04-14 - Earliest claimed: 2010-12-23 - Assignees: Mutlivac Sepp Haggenmueller GmbH & Co. KG - Applicants: Luciano Capriotti; Lars Ickert - Inventors: Luciano Capriotti; Lars Ickert - Web page: https://patentgrep.com/patent/US9003745B2 ## CPC - B65B 7/164: {Securing by heat-sealing} - B26D 5/086: {Electric, magnetic, piezoelectric, electro-magnetic means} - B26F 1/40: using a press, e.g. of the ram type (presses in general B30B) - B29C 65/7451: {the severing tool and the welding tool being movable with respect to one-another} - B29C 65/7461: {for making welds and cuts of other than simple rectilinear form} - B29C 66/112: {Single lapped joints} - B29C 66/131: {Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area} - B29C 66/24244: {forming a rectangle} - B29C 66/53461: {joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies} - B29C 66/8227: {using springs} - B29C 66/8322: {Joining or pressing tools reciprocating along one axis} - B29C 66/849: {Packaging machines} - B65B 61/065: {by punching out} - B29C 66/8161: {said pressing elements being supported or backed-up by springs or by resilient material} - B29C 66/8244: {magnetically driven} - B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00) - B26D: CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING (for growing crops or plants A01D, A01G; for fodder or straw A01F; for bulk butter A01J; for dough A21C; slaughtering A22B; for tobacco, cigars or cigarettes A24; marking-out, perforating or making buttonholes A41H25/00; manufacturing footwear A43D; brushmaking A46D; surgery A61B; disintegrating, mincing or shredding in general B02C; cutting wire, making pins or nails B21F, B21G; of the kind used formetal B23; cutting by abrasive fluid jets B24C5/02; hand-held cutting tools B26B; perforating, cutting-out, stamping-out or punching, or severing by means other than cutting B26F; for wood B27; for stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; article or web delivery apparatus incorporating cutting or line-perforating devices B65H35/00; for leather or upholstery B68, C14B; for glass C03B; making matches C06F; for peat C10F; for sugar C13B45/00; for textile materials D06H; civil engineering, building, mining, see Section E; for light guides G02B6/25; cutting processed photographic material G03D15/04) - B26F: PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING (marking-out, perforating or making buttonholes A41H25/00; shoemaking A43D; surgery A61B; punching metal B21D; drilling metal B23B; cutting of metal by applying heat locally, e.g. flame cutting, B23K; cutting by abrasive fluid jets B24C5/02; details common to machines for severing B26D; drilling wood B27C; drilling stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; of glass C03B; of leather C14B; of textile materials D06H; for light guides G02B6/25; of tickets G07B) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) ## Abstract A working station for a packaging machine for sealing a package and quickly cutting a top film and a method for operating such a working station. The working station may include a sealing tool upper part, a sealing tool lower part, a sealing frame, a movable cutting tool having a blade for cutting a top film, and at least one energy storage device in operable engagement with the cutting tool and the sealing frame. The at least one energy storage device may be configured for accumulating potential energy upon a relative movement of the sealing frame with respect to the cutting tool. The working station may further include a holding mechanism that is operable to hold the cutting tool to a portion of the working station that is stationary with respect to the cutting tool and the sealing frame. ## Claims ### Claim 1 A working station for a packaging machine for sealing trays, the working station comprising: a sealing tool upper part; a sealing tool lower part; a sealing frame; a movable cutting tool having a blade for cutting a top film; and at least one energy storage device in operable engagement with the cutting tool and the sealing frame, said at least one energy storage device accumulating potential energy upon a relative movement of the sealing frame with respect to the cutting tool. ### Claim 2 (depends on 1) The working station according to claim 1, further comprising at least one holding mechanism capable of holding the cutting tool on a part of the working station that is stationary with respect to the cutting tool and the sealing frame. ### Claim 3 (depends on 2) The working station according to claim 2, wherein the holding mechanism is a permanent magnet or an electromagnet. ### Claim 4 (depends on 2) The working station according to claim 2, wherein the detachment of the cutting tool from the holding mechanism is provided by switching off the holding mechanism formed as an electromagnet via a controller or by means of exceeding the retention force of the holding mechanism by the sealing frame and the energy storage device. ### Claim 5 (depends on 1) The working station according to claim 1, wherein the energy storage device is a spring. ### Claim 6 (depends on 1) The working station according to claim 1, further comprising at least one cushioning element capable of cushioning the impact of the cutting tool against the sealing frame. ### Claim 7 (depends on 1) The working station according to claim 1, wherein said at least one energy storage device is configured to at least partially convert the accumulated potential energy into kinetic energy of the cutting tool in a movement of the cutting tool relative to the sealing frame and in a direction toward a package. ### Claim 8 A method for operating a working station for a packaging machine for sealing trays and for cutting a top film, said method comprising: restraining a movement of a movable cutting tool with a holding mechanism; accumulating potential energy in at least one energy storage device by moving a sealing frame relative to the movable cutting tool; and releasing the holding mechanism to convert the accumulated potential energy into kinetic energy of the cutting tool. ### Claim 9 (depends on 8) The method according to claim 8, further comprising holding the cutting tool on a part of the working station that is stationary in comparison to the cutting tool and the sealing frame, and accelerating the cutting tool is in the direction of the top film by converting the potential energy accumulated in the at least one energy storage device into kinetic energy of the cutting tool. ### Claim 10 (depends on 9) The method according to claim 9, further comprising providing a cutting blade mounted on the cutting tool for cutting the top film on an edge of the tray. ### Claim 11 (depends on 10) The method according to claim 10, further comprising cushioning the cutting tool at the end of a cutting movement using at least one cushioning element. ### Claim 12 A working station for a packaging machine for sealing trays with a top film, the working station comprising: a sealing tool upper part; a sealing tool lower part cooperable with the sealing tool upper part to form a sealing chamber; a sealing frame associated with the sealing tool upper part and movable relative to the sealing tool upper part; a movable cutting tool associated with the sealing tool upper part, the cutting tool having a blade for cutting a top film; and at least one energy storage device operably engaged with the cutting tool and the sealing frame, wherein the at least one energy storage device is disposed between the cutting tool and the sealing frame for accumulating potential energy upon a relative movement of the sealing frame with respect to the cutting tool. ### Claim 13 (depends on 12) The working station according to claim 12, further comprising at least one holder capable of holding the cutting tool on a part of the working station that is stationary with respect to the cutting tool and the sealing frame. ### Claim 14 (depends on 13) The working station according to claim 13, further comprising at least one holder capable of holding the cutting tool on the sealing tool upper part. ### Claim 15 (depends on 13) The working station according to claim 13, wherein the holder comprises a magnet. ### Claim 16 (depends on 15) The working station according to claim 15, wherein the magnet comprises a permanent magnet or an electromagnet. ### Claim 17 (depends on 15) The working station according to claim 15, wherein the cutting tool is selectively detachable from the holder by switching off the magnet via a controller or by exceeding the retention force of the magnet by the sealing frame and the energy storage device. ### Claim 18 (depends on 12) The working station according to claim 12, wherein the energy storage device comprises a spring. ### Claim 19 (depends on 18) The working station according to claim 18, wherein the spring comprises at least one of a compression spring or a torsion spring. ### Claim 20 (depends on 12) The working station according to claim 12, further comprising at least one cushioning element capable of cushioning the impact of the cutting tool against the sealing frame.