EP0466853A1 - Einrichtung zum haltern eines schneidwerkzeuges - Google Patents
Einrichtung zum haltern eines schneidwerkzeugesInfo
- Publication number
- EP0466853A1 EP0466853A1 EP91902410A EP91902410A EP0466853A1 EP 0466853 A1 EP0466853 A1 EP 0466853A1 EP 91902410 A EP91902410 A EP 91902410A EP 91902410 A EP91902410 A EP 91902410A EP 0466853 A1 EP0466853 A1 EP 0466853A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide
- knives
- knife
- lower knife
- cut
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
- B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7809—Tool pair comprises rotatable tools
- Y10T83/7822—Tool pair axially shiftable
- Y10T83/7826—With shifting mechanism for at least one element of tool pair
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7809—Tool pair comprises rotatable tools
- Y10T83/7851—Tool pair comprises disc and cylindrical anvil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7872—Tool element mounted for adjustment
- Y10T83/7876—Plural, axially spaced tool elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9372—Rotatable type
- Y10T83/9396—Shear type
- Y10T83/9401—Cutting edge wholly normal to axis of rotation
Definitions
- the proposed device relates to the holding of a cutting tool, in particular a knife such as, for example, a lower knife, which each contains at least two cutting edges.
- a knife such as, for example, a lower knife, which each contains at least two cutting edges.
- the lower knife should be able to cooperate with at least one upper knife, at least one of the knives being displaceable in such a way that the upper knife can optionally cooperate with a plurality of cutting edges of the lower knife, and the lower knife being rotatable and opposing a supporting knife.
- Kniks with a circular outer contour such as bottom and top knives, for example, are used in corresponding machines to cut web-shaped materials.
- an initially relatively wide web is cut into relatively narrow individual webs by longitudinal cuts, which can be the case, for example, when a roll of a relatively wide web-like material is unwound and then wound up into a plurality of rolls, each with a narrower width.
- So-called circular knives are used for this purpose, these cutting devices often consisting of so-called upper and lower knives.
- the lower knives used here often consist of so-called cutting sleeves, i.e. H. those lower knives which have a plurality of cutting edges arranged coaxially with one another, with which it is possible that a so-called upper knife can optionally cooperate with one of these cutting edges: the web-like dimension to be cut
- material consists for example of paper, fabric, foil, metals or plastics. However, other materials are also conceivable, such as corrugated cardboard.
- the web to be cut into individual strips runs approximately tangentially between at least one upper and at least one lower knife, so that at least two strips result from a web in this way.
- the straight cut the web to be cut into individual strips runs approximately tangentially between at least one upper and at least one lower knife, so that at least two strips result from a web in this way.
- the end processor of the web to be cut often requires webs of different widths, which is why there is a need to cut a relatively wide web into a relatively wide web during a production process, for example, and into relatively narrow webs during another possibly subsequent production process .
- These cut webs are generally wound up into rolls so that they can be sent to the respective end processor of these webs, for example in a simple and convenient manner.
- positioning For the person who has to subdivide a relatively wide web into individual webs, the changing wishes of the final processor mean that the equipment available to him has to be changed accordingly, this process is usually referred to as "positioning". With the so-called straight cut, it is relatively easy to
- a cutting device has also become known from DE-AS 22 50 125, in which pulling devices are assigned to each knife in order to bring it to a desired position.
- the device according to DE-AS 22 50 125 is also very space-consuming and therefore expensive and sensitive to vibrations.
- EP-A 0 219 890 a device has also become known which makes it possible to move knives in a smooth manner with respect to the shaft supporting them.
- this shaft is mounted in a machine frame, ie with bearings that are far apart.
- a guide which is not rotatably fastened in the machine frame, a bushing located between the guide and the respective lower knife, at least one radially supporting bearing located between the bushing and the lower knife and a bushing, bearing and the respective lower knife comprising the displaceable structural unit.
- the device is further supplemented by at least one adjusting means incorporated in the guide, each of which is operatively connected to at least one of the lower knives, and further by the bushing having a channel for the supply of pressure medium in every possible position of the respective one Covering the lower knife with respect to the guide, by means of adjusting means incorporated in the guide in its axial direction and adjustment means inserted in these grooves, each sleeve being connected to an adjusting means in each case, at least one undercutter located between the end faces and with this cooperating coupling, a drive which is operatively connected to at least one of the lower knives for rotating this lower knife, traction or pressure means as adjusting means and furthermore in that the bearing can be a roller bearing which supports in the radial direction.
- the proposed solution makes it possible for the circular knives in question, in particular the lower knives - and here again the cutting sleeves - to be easily and simply automatically moved to a position which can be determined as desired, the device being stable, inexpensive and is low-vibration.
- the device is also suitable for large diameters of circular knives, ie also for heavy circular knives.
- the rifles can also be moved from the outside of the machine, for example from outside their side wall, to the correct position, which enables convenient operation.
- the device can also be used for the so-called straight and in particular also for the looped cut when the circular knives are moved very close together.
- a sensitive setting, ie positioning of the respective cutting knife is possible. Further features and advantages result from the following description of two exemplary embodiments.
- Figure 1 Sketch of the so-called straight cut.
- Figure 2 Sketch of the so-called looped cut.
- Figure 3 Section through a lower knife holding and supporting guide in a first embodiment.
- Figure 4 Another embodiment analogous to Figure 3.
- Figure 5 Drive of the knife, to be seen as a complement to Figures 3 and 4.
- a web 2 to be cut into several strips 1 runs through at least one pair of knives. Any number of pairs of knives can be arranged one behind the other in the direction of view of the figure.
- Each pair of knives comprises an upper knife 3 and at least one lower knife 4; that or that
- the upper knife 3 is / are fastened on the shaft or guide 5, while the lower knife or knives 4 are fastened on a shaft or guide 6. If it is a question of shafts, then each of the shafts 5 or 6 is usually rotatably mounted in a correspondingly designed machine frame and can also be driven. For the purpose of changing their position, ie the width of strips 1 to be cut, the upper knives 3 can be moved along the shaft 5 - ie in the viewing direction of FIG. 1 - and the lower knives 4 along the shaft 6 as required. This shift can be relatively slight, especially when there are several intersecting points per undercutter. For example Bottom knife in the form of so-called cutting sleeves, each cutting sleeve containing a multiplicity of cutting edges.
- One and the same upper knife can optionally work together with each of these edges, so that it is often necessary, in the case of so-called format changes, to move the upper knife by a relatively wide axial extent, while the lower knife only by a much shorter one, in order to in this way to enable the upper knife to cooperate with another cutting edge, a so-called cutting groove or the like, than before.
- FIG. 2 It can be seen from FIG. 2 that the web 2 and the strips 1 cut therefrom partially wrap around the lower knife or knives 4. In this way, the web to be cut is held better during the cutting process than in the case of the so-called straight cut according to FIG. 1. If the lower knives 4 have to be displaced in the axial direction of the shaft 6 in the case of the so-called looped cut according to FIG. 2, then press the web 2 to be cut and those cut from it
- the cutting sleeves for example the cutting sleeves 4, 4a and 4b, are not, as is customary, by a rotatable shaft, but rather by a fixed, non-rotatable guide
- E RSA TZBLATT 7 are supported.
- the guide 7 is provided with at least one flange 8 which is firmly connected to the frame 10 of the machine by means of screws 9. Because there is a screw connection here, it is possible to completely remove the guide 7 from the machine with everything that is stored on it and held by it. For example, this type of attachment may become necessary if the guide 7 is to be provided with bottom knives which have not yet been used, ie, for example, if other bottom knives should have become unusable due to a longer cutting process. It can also be seen from FIG. 3 that with the aid of the screw connection 9, the guide 7, which can be straight or also slightly curved, is not rotatably fastened in the machine frame 10.
- the outer contour of the guide 7 is preferably cylindrical, as indicated by the diameter 11.
- the flange 8 and the guide 7 can be connected to one another by a releasable screw connection 13.
- Grooves are incorporated into each of the sleeves 12, which serve to receive circlips, for example the circlips 14, 15 and 16.
- These retaining rings serve to secure bearings, in particular roller bearings, which can also absorb axial forces, such as roller bearings 17 and 18 / on bushing 12.
- the roller bearings 17 and 18 in turn engage in corresponding recesses in the lower knife 4, so that in this way a mutual displacement of the respective
- the outer circular surface of the guide indicated by the diameter 11 is in the guide 7 incorporated at least one groove 19 open to the outside, at least one hose 20 being inserted into each of these grooves. If necessary, this hose can be expanded by means of a pressure medium, so that the respective bush or all bushes 12 can be held in their axial position relative to the guide, so that they cannot move. Furthermore, in the exemplary embodiment according to FIG. 3, a channel 21 is incorporated into the guide 7, into which pressure medium, such as compressed air, can be admitted in accordance with the direction of the arrow 22.
- pressure medium such as compressed air
- the channel 21 is connected to radial branch channels 23 and 24, each branch channel opening under a bushing 12 in such a way that the respective branch channel is covered by the bushing 12 even when the bushing 12 and thus the respective one Unter ⁇ knife 4 should be shifted by smaller amounts in the axial direction of the guide 7.
- an air cushion is generated between the guide 7 and the respective bushing 12, which makes it possible to move the respective lower knife 4 in a smooth manner and thus to change the axial position of the lower knife 4 relative to the guide 7, which in the majority of all conceivable
- cases at the same time also means changing the position of the lower knife 4 relative to the upper knife working with the lower knife.
- Adjacent lower knives such as the lower knives 4 and 4a, are connected to one another by a coupling, which in the simplest case can be achieved by a pin 25 being fixed in one of the two end faces of the two lower knives and in the other end face is slidably inserted.
- a simple coupling is created, which allows all lower knives to be connected to one another in such a way that all lower knives can be subjected to a rotary movement if one of the lower knives is provided with a rotary drive and thereby allows the lower knives to move relative to one another.
- an accordion-like seal 26 is provided between the end faces of adjacent lower cutters, for example lower cutters 4 and 4a, by means of which dust or other contaminants occurring during the cutting process are to be kept away from the lower cutters, in particular their bearings.
- a drive for the lower knife can be seen, for example, from FIG.
- the lower knife 4c is connected on one of its two end faces to a pulley 27, over which a flat or toothed belt, a round cord belt, a chain, a V-belt or the like 28 is placed.
- the Rie men 28 runs over another pulley 29 which is connected to a motor 30 and is driven by this.
- the motor 30 is supported via a bracket 31 on a part 10a of the frame 10, just like the flange 8a of the flange 8, which is analogous to the flange 8
- any other drive suitable in the present context is also suitable, as long as it enables the lower knives to be brought to a peripheral speed which is favorable for the cutting process.
- This circumferential speed can, for example, be identical to the speed of the web to be cut.
- the embodiment according to FIG. 4 differs from the embodiment according to FIG. 3 in that instead of only one groove 19, a plurality of grooves can be incorporated into the guide 7, these grooves preferably being at the same distance or in the circumferential direction of the guide 7 keep the same angular distances. At least one traction or compression means is inserted into each of the grooves as a means for adjusting or moving the lower knife 4.
- an adjusting rod 33 is inserted into the groove 32 and an adjusting rod 35 is inserted into the groove 34.
- These adjusting rods are each provided with a thread at one end and engage in a nut. By turning the nut, the adjusting rods can be moved in the direction of arrow 36 in such a way that the axial position of the respective lower knife can be adjusted and thus changed to a desired value.
- the adjusting rod 33 is connected to the bush 12a with the aid of a pin or a screw 37.
- REPLACEMENT LEAF is connected to the sleeve 12 by means of a pin or a screw 38.
- Further analog adjustment rods are assigned to the further bushes of the further lower knives. All adjustment rods are inserted into the guide 7 essentially parallel to the center line 39, which may be straight or slightly curved, and can be moved parallel to this center line if necessary.
- rigid adjustment rods it is also possible to use elastic adjustment rods or other elastic tension or compression elements, such as, for example, flexible plastic rods, glass fiber rods, chains, wire ropes or plastic ropes, provided that they are suitable for the respective position of the respective lower knife relative to the Guide 7, ie to change substantially parallel to the center line 39.
- the lower knives 4 of the exemplary embodiment according to FIG. 4 can be set in rotation, for example, by a drive according to FIG. 5, so that they obtain a peripheral speed which is favorable for the cutting process, for example the running speed of the web to be cut . However, any other drive is also possible.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Nonmetal Cutting Devices (AREA)
- Knives (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4002917 | 1990-02-01 | ||
DE19904002917 DE4002917A1 (de) | 1990-02-01 | 1990-02-01 | Einrichtung zum haltern eines schneidwerkzeuges |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0466853A1 true EP0466853A1 (de) | 1992-01-22 |
Family
ID=6399186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91902410A Withdrawn EP0466853A1 (de) | 1990-02-01 | 1991-01-18 | Einrichtung zum haltern eines schneidwerkzeuges |
Country Status (6)
Country | Link |
---|---|
US (1) | US5127296A (de) |
EP (1) | EP0466853A1 (de) |
JP (1) | JPH04503777A (de) |
DE (1) | DE4002917A1 (de) |
ES (1) | ES2029219T1 (de) |
WO (1) | WO1991011303A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2299046A (en) * | 1995-03-21 | 1996-09-25 | Nestle Sa | Ultrasonic cutting device |
DE10150064B4 (de) * | 2001-10-10 | 2016-05-25 | Oerlikon Textile Gmbh & Co. Kg | Verfahren und Vorrichtung zum Längsschneiden einer Folienbahn |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1038902B (de) * | 1954-02-02 | 1958-09-11 | Jagenberg Werke Ag | Laengsschneidevorrichtung an Rollenschneidemaschinen |
US3785232A (en) * | 1969-12-16 | 1974-01-15 | Beloit Corp | Web support table |
AT316961B (de) * | 1971-05-27 | 1974-08-12 | Ungerer Irma | Spannwelle für rotierende Werkzeuge und Führungen |
DE2633340B2 (de) * | 1976-07-24 | 1978-07-06 | Jagenberg-Werke Ag, 4000 Duesseldorf | Schneidvorrichtung |
GB1592955A (en) * | 1976-12-30 | 1981-07-15 | Masson Scott Thrissell Eng Ltd | Slitter rollers |
US4157672A (en) * | 1977-06-27 | 1979-06-12 | Lenox Machine Company, Inc. | High bulk slitter |
DE2824900C2 (de) * | 1978-06-07 | 1980-08-07 | Jagenberg-Werke Ag, 4000 Duesseldorf | Vorrichtung zum Längsschneiden von Warenbahnen |
JPS6026810B2 (ja) * | 1981-07-27 | 1985-06-26 | 日本鋼管株式会社 | 多連式焼入れ方法および装置 |
US4414875A (en) * | 1981-07-27 | 1983-11-15 | Portland Iron Works | Gang saw apparatus |
JPS61188136A (ja) * | 1985-02-14 | 1986-08-21 | レンゴ−株式会社 | 工具の位置決め装置 |
DE3518922A1 (de) * | 1985-05-25 | 1986-11-27 | Maschinenfabrik Goebel Gmbh, 6100 Darmstadt | Einrichtung zum verschieben von untermessern |
DE3533739A1 (de) * | 1985-09-21 | 1987-03-26 | Goebel Gmbh Maschf | Verschiebe-einrichtung |
-
1990
- 1990-02-01 DE DE19904002917 patent/DE4002917A1/de not_active Withdrawn
-
1991
- 1991-01-18 ES ES91902410T patent/ES2029219T1/es active Pending
- 1991-01-18 WO PCT/DE1991/000035 patent/WO1991011303A1/de not_active Application Discontinuation
- 1991-01-18 EP EP91902410A patent/EP0466853A1/de not_active Withdrawn
- 1991-01-18 JP JP3502590A patent/JPH04503777A/ja active Pending
- 1991-01-18 US US07/743,385 patent/US5127296A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9111303A1 * |
Also Published As
Publication number | Publication date |
---|---|
JPH04503777A (ja) | 1992-07-09 |
ES2029219T1 (es) | 1992-08-01 |
US5127296A (en) | 1992-07-07 |
WO1991011303A1 (de) | 1991-08-08 |
DE4002917A1 (de) | 1991-08-08 |
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Legal Events
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TCNL | Nl: translation of patent claims filed | ||
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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EL | Fr: translation of claims filed | ||
GBC | Gb: translation of claims filed (gb section 78(7)/1977) | ||
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Withdrawal date: 19921128 |