EP0984850A2 - Schneidwerkzeug, insbesondere hobelmesserkopf oder hobelmesserwelle - Google Patents
Schneidwerkzeug, insbesondere hobelmesserkopf oder hobelmesserwelleInfo
- Publication number
- EP0984850A2 EP0984850A2 EP99924694A EP99924694A EP0984850A2 EP 0984850 A2 EP0984850 A2 EP 0984850A2 EP 99924694 A EP99924694 A EP 99924694A EP 99924694 A EP99924694 A EP 99924694A EP 0984850 A2 EP0984850 A2 EP 0984850A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- knife
- cutting tool
- clamping jaw
- tool according
- bolt
- 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.)
- Granted
Links
- 230000006835 compression Effects 0.000 claims abstract description 20
- 238000007906 compression Methods 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G13/00—Cutter blocks; Other rotary cutting tools
- B27G13/02—Cutter blocks; Other rotary cutting tools in the shape of long arbors, i.e. cylinder cutting blocks
- B27G13/04—Securing the cutters by mechanical clamping means
-
- 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
-
- 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
- Y10T83/9457—Joint or connection
- Y10T83/9464—For rotary tool
Definitions
- Cutting tool in particular planer knife head or planer knife shaft
- the invention relates to a cutting tool, in particular a planer knife head or a planer knife shaft, with a support body having at least one radially outwardly open receptacle, a wedge-shaped clamping jaw arranged in the receptacle and a knife which can be clamped in its seat by means of the clamping jaw, the clamping jaw being used for positioning of the knife is prestressed by a compression spring and can be displaced radially inward against the force of the compression spring to remove the knife of the clamping jaws, the clamping jaw being lockable in its radially inner position.
- Such a cutting tool is known for example from EP 0 428 996 B1.
- a recess is made in the receptacle in the support body on the side opposite the knife seat, into which the clamping jaw can snap with a projection provided on it.
- the clamping jaw When changing the knife, the clamping jaw must be pressed radially inwards and tilted slightly in its inner position so that the projection in the clamping jaw engages in the recess in the supporting body and the clamping jaw can thus be locked.
- a knife shaft is known from DE-AS 11 95 934.
- the knife is screwed to a knife holder which can be positively fixed in a recess in the support body.
- the knife holder is loaded from the rear by the spring-loaded jaws, which positions the knife on its flight circle. If the knife shaft is set in rotation, the clamping jaw moves radially outwards as a result of the centrifugal force acting on it and clamps the knife firmly over the knife holder.
- the operator must press the clamping jaw radially inwards against the force of the spring and hold it in this position until the knife holder can be released from the positive connection and removed together with the knife. Then the jaws must be released slowly so that it is pushed radially outwards by the compression spring. If the jaw is released too quickly, the spring will suddenly snap out and throw the jaw out of the holder. There is a high risk of injury for the operating personnel here. Because the jaws can also fall out of the holder
- Similar cutting tools are also known from German Utility Model No. 72 34 252 and DE 25 59 406 AI.
- the knife is positively connected via a tongue and groove connection to a knife holder, which protrudes into the groove-shaped receptacle and engages the spring-loaded clamping jaws against the rear thereof.
- the knife holder is also loaded by a compression spring.
- the knife is positioned by the pre-tensioned knife holder and the pre-tensioned jaws. If the knife shaft is set in rotation, the clamping jaw moves radially outwards as a result of the centrifugal force acting on it and clamps the knife over the knife holder.
- the clamping jaw To remove the knife, the clamping jaw must be pushed back radially inward against the spring force until its locking with the knife holder is released, whereby the knife holder with the knife is then pushed further radially outwards by the compression spring acting on it, and then the knife from the knife holder can be removed. If the clamping jaw is relieved, it springs back in the holder and strikes against the knife holder in the removal position. If the new knife is to be brought into position, the knife holder must be pressed back not only against the force of its compression spring, but also against the frictional force acting on it from the clamping jaw. If the frictional force is too high, the clamping jaw must be pressed radially inward again and held there until the knife holder has been brought into position, which sometimes makes the cutting tool very difficult to handle.
- the cutting tool described at the outset is to be improved in such a way that the locking of the clamping jaw in its radially inner position is facilitated for changing the knife.
- the generic cutting tool is characterized in that a spring-loaded bolt is provided for the automatic locking of the clamping jaw, which engages in a recess provided in the clamping jaw.
- the bolt is preferably arranged in a substantially tangential direction in the support body and is guided in a bore in the support body opening into the receptacle. If the clamping jaw is pressed far enough into the receptacle, the bolt snaps into the recess, which is preferably in the form of a through-hole, thereby securely fixing and locking the clamping jaw.
- a through-bore aligned with the through-hole of the clamping jaw and opening into the receptacle is preferably provided in the support body.
- a tool (mandrel) can then be inserted into this through hole and the bolt pushed back into its guide hole.
- the jaw then springs back a little and locks the bolt in its guide hole.
- the clamping jaw springs further radially outwards and then positions the knife.
- the clamping jaw is symmetrical in cross section, it is effectively prevented that it can be accidentally inserted into the receptacle the wrong way round, which increases the safety when operating the cutting tool.
- a knife holder is preferably arranged between the clamping jaw and the knife and is particularly preferably pivotably mounted in the receptacle.
- the knife holder then swivels back in the radially inner position of the clamping jaw, which simplifies the removal of the knife. At the same time, inserting a new knife is easier. If the clamping jaw springs back, the knife holder swivels against the knife and this is positioned. In order to set an exact positioning, the knife can be positively connected to the knife holder via a tongue and groove connection.
- the knife holder is from one to the bottom the support supporting compression spring biased so that it presses the knife holder after loosening the jaw radially outward until the knife holder is pressed radially outward against a stop provided in the receptacle.
- the flight circle diameter of the knife is set exactly.
- the knife holder is pretensioned by means of a bolt which has a radially outwardly projecting shoulder against which the clamping jaw strikes, and when this is locked, pushes the bolt radially inward so far that the knife holder is free of force.
- At least one screw which can be screwed axially into the supporting body can be provided for axially securing the knife.
- This design prevents the knife from falling axially out of the knife shaft when cutting tools that are inserted vertically into the machine.
- a sleeve can be inserted into the through hole in the support body, which engages with its end facing the receptacle in a recess in the knife holder. The knife holder is thereby securely fixed in the axial direction.
- Figure 2 the cutting tool in partial side view in the changing position of the knife
- Figure 3 the top view of the cutting tool
- Figure 4 the cutting tool in the changing position of the knife in partial section along the line IV-IV of Figure 3;
- Figure 5 the cutting tool in the changing position of the knife in partial section along the line V-V of Figure 3;
- Figure 6 the cutting tool in the changing position of the knife in partial section along the line VI-VI of Figure 3;
- Figure 7 the cutting tool in partial side view in the cocked position of the knife
- FIG. 8 the illustration according to FIG. 4 with the knife positioned and tensioned
- Figure 9 the representation of Figure 5 with the knife positioned and cocked
- Figure 10 the representation of Figure 6 with the knife positioned and cocked;
- Figure 11 is a partial perspective view of a cutting tool;
- Figure 12 is a partial perspective view of a cutting tool
- Figure 13 - a partial perspective view of a cutting tool.
- the cutter shaft is provided at its end with two axial pins 2, 2 ', via which it is rotatably supported in a machine (not shown here). It consists of the support body 1 and, for example, four receptacles 3 distributed regularly over the circumference.
- the receptacles 3 are groove-shaped cutouts in the support body 1 and in each of them is the clamping jaw 4 loaded by the compression spring 13 and the knife holder 5 loaded by the compression spring 16 and the knife 6 are arranged, the jaws 4 and knife holder 5 lying in the direction of rotation in front of the knife 6.
- Clamping jaws 4, knife holder 5 and knife 6 are designed as elongated components.
- the knife holder 5 On its radially inner side, the knife holder 5 is provided with a projection 5a which extends at a right angle and which engages in an undercut 4a provided in the receptacle 3. In the area of its radially outer end, the knife holder 5 is provided with a groove 18 running over its full length, into which a projection / spring 17, which also runs over the full length and is provided on the front of the knife 6, engages. The back of the knife 6 is flat and lies against the support body 1.
- a through hole 22 is provided which extends essentially in the tangential direction.
- a bore 10 is made in the supporting body 1, which opens into the lower region of the receptacle 3.
- a bolt 7 is guided by one Compression spring 9 is loaded.
- a through bore 11 is made in the support body 1, which is aligned with the bore 10.
- the knife holder 5 is provided with a recess 5b which is open radially inwards (FIG. 4).
- the clamping jaw 4 If the clamping jaw 4 is pressed radially inward, for example with a tool 19, against the force of the spring 13, which is supported on the base of the receptacle 3 or in a recess or bore 12 which extends further radially inward from there, the through bore 22 reaches in line with the bore 10, so that the bolt 7 snaps with its spherical head 8 into the bore 22 and locks the jaws 4 in its radially inner position.
- the clamping jaw 4 presses on the shoulder 15 of the hollow-drilled bolt 14 and presses it against the force of the
- Compression spring 16 also radially inward so that the knife holder 5 is relieved and pivoted.
- the knife 6 can be removed axially or radially in this position shown in FIGS. 4 to 6 (cf. FIG. 11).
- a sleeve 23 is inserted into the through hole 11, which in the downwardly open recess 5b of the knife holder
- a groove 24 opening into the through bore 22 is provided, into which the bolt 7 engages with its head 8 (cf. FIG. 8).
- the cutting tool can be installed both horizontally and vertically.
- screws 21 for the knife can be axially screwed into the carrying body 1 on both sides of the knife
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Milling, Drilling, And Turning Of Wood (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Details Of Cutting Devices (AREA)
- Gripping On Spindles (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813084 | 1998-03-25 | ||
| DE19813084A DE19813084C1 (de) | 1998-03-25 | 1998-03-25 | Schneidwerkzeug, insbesondere Hobelmesserkopf oder Hobelmesserwelle |
| PCT/DE1999/000919 WO1999048655A2 (de) | 1998-03-25 | 1999-03-25 | Schneidwerkzeug, insbesondere hobelmesserkopf oder hobelmesserwelle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0984850A2 true EP0984850A2 (de) | 2000-03-15 |
| EP0984850B1 EP0984850B1 (de) | 2003-01-29 |
Family
ID=7862241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99924694A Expired - Lifetime EP0984850B1 (de) | 1998-03-25 | 1999-03-25 | Schneidwerkzeug, insbesondere hobelmesserkopf oder hobelmesserwelle |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6279444B1 (de) |
| EP (1) | EP0984850B1 (de) |
| AT (1) | ATE231775T1 (de) |
| BR (1) | BR9904884A (de) |
| DE (2) | DE19813084C1 (de) |
| WO (1) | WO1999048655A2 (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7007580B2 (en) * | 2002-04-11 | 2006-03-07 | Goss International Americas, Inc. | Apparatus for removably securing a cutting component |
| PT103245A (pt) * | 2005-03-14 | 2005-09-30 | Abreu Alfredo Ferreira De | Arvore de corte com sistema de substituicao rapida das laminas |
| US7517178B2 (en) * | 2005-04-01 | 2009-04-14 | Great Lakes Custom Tool Mfg., Inc. | Rotary cutter head |
| US7735531B2 (en) * | 2006-08-10 | 2010-06-15 | Les Produits Gilbert Inc. | Planing head for a planing machine and method of manufacture thereof |
| US20130255861A1 (en) | 2012-03-30 | 2013-10-03 | Uwe Schneider | Apparatuses and Methods for Making Absorbent Articles |
| US9028632B2 (en) | 2012-03-30 | 2015-05-12 | The Procter & Gamble Company | Apparatuses and methods for making absorbent articles |
| US8440043B1 (en) | 2012-03-30 | 2013-05-14 | The Procter & Gamble Company | Absorbent article process and apparatus for intermittently deactivating elastics in elastic laminates |
| US9050213B2 (en) | 2012-03-30 | 2015-06-09 | The Procter & Gamble Company | Apparatuses and methods for making absorbent articles |
| US9039855B2 (en) | 2012-03-30 | 2015-05-26 | The Procter & Gamble Company | Apparatuses and methods for making absorbent articles |
| CH709488A1 (de) * | 2014-04-14 | 2015-10-15 | Oertli Werkzeuge Ag | Werkzeugkopf und Verfahren zum Einsetzen und Spannen einer Schneidplatte, sowie Schneidplatte. |
| DE202014003962U1 (de) * | 2014-05-13 | 2014-06-11 | Robert Bosch Gmbh | Werkzeug |
| US9802334B2 (en) | 2014-07-10 | 2017-10-31 | Kimwood Corporation | Cutter head assembly for a knife planer |
| DE102014015199A1 (de) * | 2014-10-10 | 2016-04-14 | Leitz Gmbh & Co. Kg | Messerkopf zur spanenden Bearbeitung von Werkstoffen und Messer hierfür |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1195934B (de) * | 1957-10-30 | 1965-07-01 | Paul Kirsten Dr Ing | Messerwelle fuer Holzbearbeitungsmaschinen, insbesondere Zerspanungsmaschinen mit keil-artigen Druckleisten |
| DE2559406A1 (de) * | 1972-03-24 | 1977-03-31 | Schaefer Karl A R | Einwegmesser fuer holzzerspanungsmaschinen |
| DE7234252U (de) * | 1972-09-16 | 1973-07-26 | Hombak Maschinenfabrik Kg | Messerwelle fuer holzzerspanungsmaschinen |
| IT1032275B (it) * | 1974-03-13 | 1979-05-30 | Maier Kg Maschf B | Albero portacoltelli per dispositivi truciolatori |
| CA1040072A (en) * | 1975-07-14 | 1978-10-10 | Arnold Schmidt | Cutter shaft for wood machining apparatus |
| US4604931A (en) * | 1985-08-16 | 1986-08-12 | Harris Graphics Corporation | Quick change rotary punch |
| US4848202A (en) * | 1987-10-29 | 1989-07-18 | The Hamilton Tool Company | Cut off or cross perforator or scoring cylinder with quick blade release |
| DE59010420D1 (de) * | 1989-11-17 | 1996-08-22 | Peter Frey Consulting | Fliehkraftbetätigte Schnellspannvorrichtung für Hobelmesser |
| US5086683A (en) * | 1990-12-13 | 1992-02-11 | Tamarack Products, Inc. | Apparatus for cutting and method |
| US5224408A (en) * | 1990-12-13 | 1993-07-06 | Tamarack Products, Inc. | Apparatus for cutting |
| ES2051250A6 (es) * | 1991-03-26 | 1994-06-01 | Rojas Manuel Jimenez | Mejoras en el objeto de la patente principal n{ 9100972 por:"dispositivo de sujecion de flejes en cilindros de perforacion y corte para maquinaria de artes graficas. |
| SE469940B (sv) * | 1992-01-14 | 1993-10-11 | Rolf Arne Larsson | Anordning för fasthållning av knivblad i en cylinder avsedd för bearbetning av en löpande bana |
| DE4433604C2 (de) * | 1994-09-21 | 1998-05-07 | Koenig & Bauer Albert Ag | Perforiereinrichtung |
| US5740714A (en) * | 1994-10-25 | 1998-04-21 | Martin; Mark S. | Rotary blade clamping assembly |
| US5875699A (en) * | 1997-01-16 | 1999-03-02 | Dynamic Dies, Inc. | Cutting die mounting system |
-
1998
- 1998-03-25 DE DE19813084A patent/DE19813084C1/de not_active Expired - Fee Related
-
1999
- 1999-03-25 DE DE59904141T patent/DE59904141D1/de not_active Expired - Lifetime
- 1999-03-25 AT AT99924694T patent/ATE231775T1/de active
- 1999-03-25 BR BR9904884-1A patent/BR9904884A/pt active Search and Examination
- 1999-03-25 EP EP99924694A patent/EP0984850B1/de not_active Expired - Lifetime
- 1999-03-25 WO PCT/DE1999/000919 patent/WO1999048655A2/de not_active Ceased
- 1999-03-25 US US09/424,538 patent/US6279444B1/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9948655A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9904884A (pt) | 2000-12-19 |
| EP0984850B1 (de) | 2003-01-29 |
| WO1999048655A2 (de) | 1999-09-30 |
| US6279444B1 (en) | 2001-08-28 |
| DE19813084C1 (de) | 1998-12-24 |
| ATE231775T1 (de) | 2003-02-15 |
| WO1999048655A3 (de) | 1999-10-28 |
| DE59904141D1 (de) | 2003-03-06 |
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