WO1995004694A1 - Dispositif de decoupage pour distributeur de feuilles - Google Patents

Dispositif de decoupage pour distributeur de feuilles Download PDF

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Publication number
WO1995004694A1
WO1995004694A1 PCT/DE1994/000901 DE9400901W WO9504694A1 WO 1995004694 A1 WO1995004694 A1 WO 1995004694A1 DE 9400901 W DE9400901 W DE 9400901W WO 9504694 A1 WO9504694 A1 WO 9504694A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
knife
cutting device
hold
slot
Prior art date
Application number
PCT/DE1994/000901
Other languages
German (de)
English (en)
Inventor
Reinhard Hörnlein
Original Assignee
Emsa-Werke Wulf Gmbh & Co.
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 Emsa-Werke Wulf Gmbh & Co. filed Critical Emsa-Werke Wulf Gmbh & Co.
Priority to EP94922838A priority Critical patent/EP0712372B1/fr
Priority to DE59402457T priority patent/DE59402457D1/de
Publication of WO1995004694A1 publication Critical patent/WO1995004694A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0073—Details
    • B65H35/008—Arrangements or adaptations of cutting devices
    • B65H35/0086—Arrangements or adaptations of cutting devices using movable cutting elements
    • 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

Definitions

  • the invention relates to a cutting device of a film dispenser for aluminum, clear, paper films or the like.
  • a cutting mechanism that can be moved over the entire width of the film and has a knife that cuts in both directions of movement, the knife of which extends with play through a cutting slot opening into a guide track and this knife part is embedded in a sliding shoe that can be moved along the guide track.
  • Cutting devices for film dispensers are known (EP 0 378 717 AI), in which rotatably mounted * round knives for cutting the aluminum foil and V-shaped knives fixed in the cutting device are provided for cutting the transparent film. Due to the different types of knives, these cutting devices are structurally complex.
  • a cutting device equipped with a knife for the cutting to length of tapes when winding coils (GB-PS 1 601 056), in which the individual knife in the form of a razor blade, which is inclined to the cutting direction, is held in a holder is determined, makes a cut in only one direction, the knife between two rollers and the rollers and the knife essentially Chen are arranged one behind the other.
  • a cutting device has a complicated structure and only allows cuts in one cutting direction.
  • the relatively large angle of attack prevents jamming in an unstable material to be cut.
  • the invention is based on the object of designing a cutting device for a film dispenser of the type mentioned at the outset in such a way that it can be used for films made from a wide variety of materials using only a fixed knife and has small structural dimensions and few individual parts.
  • This object is achieved in that on the outside of the housing of the film dispenser knife part, which are provided on the top and on the bottom of the knife holding the film on the outer wall of the housing and holding the cutters equipped in the cutting slot extending knife sides one Form an angle with respect to the longitudinal plane of the cutting slot, which is held so flat that the cutting edges have a gate and then the boundary edges of the cutting, in particular over the entire cutting path. insert the aluminum foil into the cutting slot and that the hold-down means interact with the cutting point in the cutting plane of the knife.
  • angle ⁇ is not more than approx. 25 °, preferably approx. 15 °, not only does the cutting device have good cutting behavior when cutting aluminum, transparent and paper foils, but also a short overall length of the cutting device.
  • a further shortening of the overall length of the cutting device results from the arrangement according to the invention of a tab or a bridge part which is arranged between the two knife components which cut in different directions.
  • the tab or the bridge part protrude far into the Cutting slot into it and can be fixed there on a sliding block through which the guidance of the cutting device is realized.
  • the length of the cutting device would have to be approximately twice as large if the knife tip of a pointed knife then had to penetrate deeply into the cutting slot.
  • the overall length of the housing would also have to be extended by this value.
  • the flat angle ⁇ especially when cutting aluminum, prevents a bead-like accumulation of aluminum foil pushed onto one another in front of a knife that may be too steep and which can no longer be severed.
  • the hold-down means are recessed in the vicinity of the cutting slot and in the cutting direction, thereby improving the operation of the knife.
  • those hold-down means that do not consist of pairs of rollers are made of slidable or easily slidable plastic material, such as e.g. Nylon, provided.
  • the knife is made of hardened steel and has a hardness of at least 50 to 60 Rockwell grades, making the knife almost wear-free.
  • the cutting edges of the knife separate the respective film in the transition area of the cutting edges to the cutting slot. If, after many hours of operation of the cutter, the cutter has lost some sharpness in this area can be as practice shows, the aluminum foil still einwanc ⁇ 'rei cut. The transparent films move out of the area lost in sharpness into the cutting slot and are gripped and cut there by an unused cutting part.
  • the single knife of the cutting device can be made in one piece. However, there is also the option of making the knife out of several components, e.g. to be composed of three components. These knife parts are either placed in a shell-like handle part consisting of two parts, which can be connected to a film hinge, on molded pins and recesses. By folding the handle parts together, these knife parts get a firm fit. They can be injected into a holding chassis for assembly with a handle part.
  • a further reduction in the size of the cutting device can be achieved in that the tab or the bridge part is fixed in a slide shoe which has a conicity widening perpendicularly to the plane of the knife with an increasing distance from the knife and which is conical in the cutting slot Counter surfaces is guided, whereby to ensure a good cutting behavior, the side of the slide shoe facing the knife should lie back relative to the housing surfaces for contacting the film.
  • This guidance of the slide shoe in the cutting slot makes additional guide surfaces on the side of the housing facing away from the knife superfluous, and it is also possible to assemble such a slide shoe guided in a conical guide by simply inserting it.
  • the dimensions of the cutting device can thereby be reduced significantly. Further features of the invention result from the subclaims.
  • FIG. 9 shows a further embodiment of the cutting device in section, with a knife composed of three parts, 10 is a view in the direction of arrow X in FIG. 9,
  • FIG. 12 shows a further exemplary embodiment of a cutting device in horizontal section with pairs of rollers as
  • FIG. 13 shows a section along the line XIII-XIII in FIG. 12.
  • FIG. 23 shows the embodiment according to FIG. 22 with a folded handle part and 24 is a view in the direction of arrow XXIV in FIG. 23.
  • 25 shows a cutting unit with a slide shoe guided inside the cutting slot, basic structure shown in enlarged form
  • 26 is a side view of the cutting unit of FIG. 25
  • the cutting mechanism 1 shown in FIGS. 1 and 2 has an actuating handle 2 in which the fastening part 3 of a knife 4 is embedded.
  • This fastening part of the knife 4 is rectangular in the embodiment shown.
  • a centrally arranged tab 5 which is rectangular in plan in the embodiment shown, which extends through a cutting slot 6 of the housing 7 of the film dispenser and is fixed in a slide shoe 8.
  • This slide shoe 8 is movably mounted parallel to the cutting slot 6 in a guide channel 9 which is delimited by webs 10 extending parallel to the cutting slot 6.
  • the cutting unit 1 is guided in the guide channel 9, while the knife 4 passes through the cutting slot 6 with play on both sides.
  • the knife 4 has a cutting edge 11 on each side facing the possible direction of movement. These cutting edges 11, which start from the fastening part 3, extend over the entire depth of the cutting slot 6 and end at the fastening tab 5.
  • the cutting edges 11 form an angle ⁇ with respect to the longitudinal plane of the cutting slot 6, which is kept so flat that the cutting edges 11 insert the boundary edges of the cut of the film into the cutting slot 6 already during the first cut and then over the entire cutting distance.
  • the angle ⁇ must be less than 20 °. To achieve good cutting conditions and a small overall length of the knife 4 and thus the cutting unit 1, an angle ⁇ is selected which is approximately 15 °.
  • the knife 4 is made of hardened steel and preferably has a hardness of at least 50 to 60 Rockwell degrees.
  • the cutting unit 1 is equipped with hold-down means 12, 14, which are preferably provided on the top and on the underside of the knife 4 and place the film on the housing wall during the movement of the cutting unit 1. If they do not consist of pairs of rollers, these hold-down means 12, 14 are made of sliding . and non-slip plastic material, e.g. made of nylon, which shows very good sliding properties on the matt side of the aluminum foil.
  • two pairs of rollers 14 which are spaced apart in the cutting direction and which hold the knife 4 between them can also be provided as hold-down means.
  • FIG. 8 shows a pair of rollers 14 designed as a hold-down device, in which a roller 15 is equipped with a hollow pin 16 which projects beyond the roller width and which can be inserted into a corresponding receptacle 17 of a second roller 18.
  • the knife 4 is arranged between two pairs of rollers 15, 16. 9, 10 and 11 show a cutting unit 19 which is equipped with a knife which consists of several parts.
  • the knife has two parts 21 equipped with cutting edges 20 and a bridge part 22 between the slide shoe 23 and the actuating handle 24.
  • the parts 21 are enclosed with the exception of the cutting edges 20 by the actuating handle 24, while the bridge part 22 is embedded on the one hand in the actuating handle 24 and on the other hand in the slide shoe 23 or is fastened as parts, as already described.
  • FIGS. 12 and 13 show an exemplary embodiment of a cutting device in which two pairs of rollers 14 spaced apart from one another are provided as hold-down means and are largely encapsulated by the actuating handle 25 in that they are rotatably mounted in receptacles 26 of the actuating handle 25 .
  • the axle journals 27, 28 of the rollers 14 are received by a bearing recess 29 in the actuating handle 25.
  • rollers 14 forming the hold-down device are provided with chamfers 30 adjacent to the knife 4 arranged between the rollers of a pair of rollers 14, so that the roller parts adjacent to the knife 4 do not affect the cutting operation of the knife 4. affect.
  • hold-down means as shown in FIGS. 1, 2, 3, 4, are designed as runners 12 or strips, these hold-down means are recessed in the vicinity of the cutting slot 6 and in the cutting direction, so that the cutting operation is not effected by these hold-down means is impaired and any splash burr is behind.
  • the hold-down devices are designed as strips 31, 32 which engage in the actuating handle
  • the operating handle 24 are integrated or form parts of the operating handle.
  • Strips 32 are parallel to the cutting slot 6 parallel fenden strip 31 angled and form an acute angle with the cutting slot 6.
  • the outer housing surface 33 assigned to the cutting device projects outwards relative to the other outer housing surface 34. This simplifies the cutting of the film insofar as the film, which is subjected to tensile stress by hand, is stretched in the area of the cutting device via the housing projection, which is delimited on the outside by surface 33. This simplifies the handling of the film and the cutting.
  • the front front in the area of the cutting slot 6 can be bulbous or crowned.
  • the cutting device according to FIGS. 14 and 15 has an actuating handle 24 which at the same time forms the hold-down means. It can be seen from FIG. 15 that the actuating handle 24 and thus the hold-down means in the vicinity of the knife 4 have a groove-like recess 34 on each knife side.
  • the chamfers 30 provided on the roller pairs 14 of the embodiment according to FIGS. 16 and 17 act in the same way in the vicinity of the knife 4.
  • endless soft rubber bands 35 are provided as hold-down means, which run around rollers 36 designed as rims, the rollers 36 being provided with pins 37 and being rotatably mounted in the actuating handle 1.
  • the actuating handles 38 are equipped with leaf spring clips 39, which act as hold-down means and can be formed in an arc shape from plastic. These leaf spring clips 39 are designed and arranged in such a way that, during operation, the spring bears slightly under pressure on the outer surface of the housing of the film dispenser or on the film, so that the clips 39 sweep over the film with uniform pressure during cutting.
  • this cutting device can have either pairs of rollers or skids as hold-down means.
  • slide shoe 8, knife 4, rollers 14 and handle 1 takes place in such a way that by slightly pushing apart the lamella-like housing components 54 and 55, the cutting slot 6 is briefly expanded so that the preassembled unit made of slide shoe 8, knife 4 and handle 1 with the sliding shoe 8 can be inserted into the cutting slot. Due to the conical fit of the sliding block 8 and the cutting slot 6, after the lamellae 54 and 55 have been released, it is slidably clamped in the two sides of the lamellae 54 and 55 forming the cutting slot 6.
  • the dimensional arrangement of the slide shoe 8, knife 4 and rollers 14 allows the handle piece 1 to be easily moved on the outer surface 33 of the housing, the film 53 being able to be cut.
  • This design with a sliding shoe 8 guided in the cutting slot 6 permits a considerably more compact design of the cutting device and eliminates the need for the construction of specially required guide strips on the rear side of the associated housing walls 54 and 55 the length of the sliding block 8, which essentially corresponds to the length of the knife 4, ensures a uniform and precise guidance of the cutting device.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Vending Machines For Individual Products (AREA)
  • Nonmetal Cutting Devices (AREA)

Abstract

L'invention se rapporte à un dispositif de découpage pour distributeur de feuilles d'aluminium, de feuilles transparentes, de feuilles de papier ou équivalent avec un organe de coupe se déplaçant sur toute la largeur de la feuille et comportant un couteau découpant dans les deux directions du mouvement, organe de coupe dont le couteau entre, avec un certain jeu, dans une fente de coupe aboutissant dans une voie de guidage, cette partie du couteau étant encastrée dans un patin de guidage se déplaçant le long de la voie de guidage. L'organe de coupe présente uniquement, pour tous les types de feuilles, un couteau (4) fixe par rapport à une poignée de man÷uvre, (2, 24, 44) et dont les tranchants (11, 20) des côtés entrant dans une fente de coupe (6), tranchants disposés symétriquement par rapport à une patte centrale (5) ou un pont (22, 43), forment un angle aigu α par rapport à une arête longitudinale de la fente de coupe (6), cet angle α étant inférieure à 25° et étant de préférence d'environ 15°. Le dispositif de découpage présente également au point de découpage des dispositifs presseurs qui coopèrent avec le couteau (4) dans le plan de coupe et qui appuient la feuille contre la paroi extérieure du boîtier au niveau de la partie du couteau qui se trouve à l'extérieur du boîtier (7) du distributeur de feuilles.
PCT/DE1994/000901 1993-08-07 1994-08-04 Dispositif de decoupage pour distributeur de feuilles WO1995004694A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP94922838A EP0712372B1 (fr) 1993-08-07 1994-08-04 Dispositif de decoupage pour distributeur de feuilles
DE59402457T DE59402457D1 (de) 1993-08-07 1994-08-04 Schneidvorrichtung eines folienspenders

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9311833U DE9311833U1 (de) 1993-08-07 1993-08-07 Schneidvorrichtung eines Folienspenders
DEG9311833.3U 1993-08-07

Publications (1)

Publication Number Publication Date
WO1995004694A1 true WO1995004694A1 (fr) 1995-02-16

Family

ID=6896533

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1994/000901 WO1995004694A1 (fr) 1993-08-07 1994-08-04 Dispositif de decoupage pour distributeur de feuilles

Country Status (4)

Country Link
EP (1) EP0712372B1 (fr)
AT (1) ATE151724T1 (fr)
DE (2) DE9311833U1 (fr)
WO (1) WO1995004694A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002055422A1 (fr) * 2001-01-16 2002-07-18 Emsa Werke Wulf Gmbh & Co. Kg Distributeur de film

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758133B1 (fr) * 1997-01-09 1999-04-30 Francois Noel Derouleur de bande
CN107599018A (zh) * 2017-08-25 2018-01-19 蔡胜越 铝箔剪裁机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2088825A (en) * 1980-12-05 1982-06-16 Lapalud Cie Emballages Reins Apparatus for unrolling and cutting a sheet of material
DE3525321A1 (de) * 1985-02-23 1986-08-28 Emsa-Werke Wulf GmbH & Co, 4407 Emsdetten Vorrichtung zur aufnahme einer folienrolle und zur entnahme abgeschnittener teilstuecke der folie
DE3823335A1 (de) * 1988-07-09 1990-03-15 Wulf & Co Emsa Werk Vorrichtung zur aufnahme einer folienrolle und zum abschneiden von folien-teilstuecken
WO1992016446A2 (fr) * 1991-03-23 1992-10-01 Melitta Haushaltsprodukte Gmbh & Co. Kommanditgesellschaft Distributeur de feuille avec dispositif de separation
DE9216733U1 (de) * 1992-12-10 1993-01-28 Hörnlein, Reinhard, 3450 Holzminden Folienspender mit Trennvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2088825A (en) * 1980-12-05 1982-06-16 Lapalud Cie Emballages Reins Apparatus for unrolling and cutting a sheet of material
DE3525321A1 (de) * 1985-02-23 1986-08-28 Emsa-Werke Wulf GmbH & Co, 4407 Emsdetten Vorrichtung zur aufnahme einer folienrolle und zur entnahme abgeschnittener teilstuecke der folie
DE3823335A1 (de) * 1988-07-09 1990-03-15 Wulf & Co Emsa Werk Vorrichtung zur aufnahme einer folienrolle und zum abschneiden von folien-teilstuecken
WO1992016446A2 (fr) * 1991-03-23 1992-10-01 Melitta Haushaltsprodukte Gmbh & Co. Kommanditgesellschaft Distributeur de feuille avec dispositif de separation
DE9216733U1 (de) * 1992-12-10 1993-01-28 Hörnlein, Reinhard, 3450 Holzminden Folienspender mit Trennvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002055422A1 (fr) * 2001-01-16 2002-07-18 Emsa Werke Wulf Gmbh & Co. Kg Distributeur de film

Also Published As

Publication number Publication date
EP0712372A1 (fr) 1996-05-22
DE9311833U1 (de) 1993-11-18
DE59402457D1 (de) 1997-05-22
EP0712372B1 (fr) 1997-04-16
ATE151724T1 (de) 1997-05-15

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