EP0723842B1 - Vorrichtung zum Schneiden von blättrigem Gut - Google Patents
Vorrichtung zum Schneiden von blättrigem Gut Download PDFInfo
- Publication number
- EP0723842B1 EP0723842B1 EP95119684A EP95119684A EP0723842B1 EP 0723842 B1 EP0723842 B1 EP 0723842B1 EP 95119684 A EP95119684 A EP 95119684A EP 95119684 A EP95119684 A EP 95119684A EP 0723842 B1 EP0723842 B1 EP 0723842B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking element
- pressure bar
- spring
- lever
- bent angle
- 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.)
- Expired - Lifetime
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
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
- B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
-
- 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
- B26D7/22—Safety devices specially adapted for cutting machines
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S83/00—Cutting
- Y10S83/01—Safety devices
-
- 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
- Y10T83/566—Interrelated tool actuating means and means to actuate work immobilizer
- Y10T83/5669—Work clamp
-
- 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
- Y10T83/748—With work immobilizer
- Y10T83/7487—Means to clamp work
- Y10T83/7533—With biasing or counterbalancing 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
- Y10T83/748—With work immobilizer
- Y10T83/7487—Means to clamp work
- Y10T83/7553—Including means to retain clamp jaw in position
-
- 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
- Y10T83/748—With work immobilizer
- Y10T83/7487—Means to clamp work
- Y10T83/756—Self-locking drive 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
- Y10T83/9457—Joint or connection
- Y10T83/9473—For rectilinearly reciprocating tool
- Y10T83/9478—Tool is single element reciprocable generally perpendicularly to elongate cutting edge [e.g., shear, etc.]
Definitions
- the invention relates to a device for cutting leafy good, with a table to hold the good, a Knife for cutting the good and one on the one to be cut Easily lowerable press beam, with a drive to lower the Press bar and a return spring for lifting the press bar are provided.
- a device for cutting sheet-like material with a Table for receiving the goods, a knife for cutting the Good and a press beam that can be lowered onto the material to be cut is known for example from EP 0 056 874 A1.
- a cutting device is used to lower the Press beam on the material to be cut by means of a drive, while a return spring with the drive not activated Press bar lifts.
- DE-A-31 16 292 is a device according to the preamble of claim 1, to reduce the Press beam pressure force on a stack of paper in a paper cutter known during the cut hint.
- a safety gear is provided which locks the press beam when the return spring breaks.
- locked is to be understood comprehensively.
- the Locking should be achieved that the press beam immediately after the return spring breaks or after replacement slight descent path is fixed to a pitch of the press beam on the material or extremities to be cut Prevent operator effectively. It is preferred when locking the press beam around its locking, whereby the setting of the press beam after a short distance is carried out mechanically in a particularly simple manner. It is especially thought that the press beam indirectly rested. On the other hand, it is also conceivable to use the press beam to lock directly, for example hydraulically.
- An advantageous design provides that the locking element pivoted in the drive train between two stops is, the return spring on a stationary component of the Cutting device and the locking element attacks, as well as a Release spring with lower spring force against the direction of force the return spring acts on the locking element.
- the return spring With intact Return spring pulls the locking element against one Stop, the path of movement of the locking element permanently runs outside the stationary stop part. Breaks the Return spring, and thus becomes ineffective, swings the release spring the locking element against the other stop, which in the Path of movement of the locking element now the stationary Stop part protrudes.
- the safety gear can be placed anywhere on the drive train be arranged to the press beam and could in principle also be assigned directly to the press beam.
- a preferred one Design provides that the press beam in one Machine stand is guided and the drive train of the press beam essentially by both ends of the pressure beam on this attacking tie rods, attacking at the other end of the tie rods, angle levers pivoted in the machine stand, a rod connecting the angle lever and one with a the angle lever cooperating, actual drive is formed is, the return spring on the machine stand and in the Connecting rod attacks the locking element.
- a particularly simple design of the locking element results if this is designed as an angular element, the in its corner area is pivotally mounted in the connecting rod is, and on a lever of the Winkelemementes in the area of free lever end engages the return spring and the free end the other lever of the angle element in operative connection with the stationary stop part can be brought.
- a rectangular one Arrangement of the lever of the angle element can thus be large Lever arm engage the return spring and it's the other Lever arm in the event of breakage of the return spring when opening essentially only compressive forces on the stationary stop part exposed.
- the release spring is convenient in the connecting rod stored and designed as a leg spring, one of which Thighs on the connecting rod and its other Leg on the locking element between the pivot axis of the locking element and the point of application of the return spring supports.
- the two stops of the locking element can for example by one in the connecting rod Cone be formed, which is at a distance from the pivot axis of the Locking element arranged in this, in the pivoting direction of the locking element extending oblong hole.
- the stationary stop part a locking backdrop to the catch position the pressure beam dependent engagement of the locking lever having.
- the background is that in the two angle levers mounted connecting rod depending on the position of the Bar is moved on an arc, with the consequence that the locking lever when the return spring is not broken makes a corresponding movement.
- the latching backdrop is with the large number of stop stages for the locking element, in almost constant distance to the respective locking lever position arranged.
- Figure 1 illustrates the basic structure of a Cutting machine for cutting sheet-like material, in one Plane perpendicular to the feed direction of the material to be cut or parallel to the travel plane of the press beam and the cutting knife seen. Only those essential to the invention are shown Parts.
- FIG. 1 is in one Machine stand 1 a table 12 with a horizontally aligned Table surface 13 stored, the inclusion of sheet Cutting material 2 is used.
- the press beam 11 in two parallel, vertically oriented Guides 14 is the press beam 11 in the direction of the double arrows Z can be lowered or raised, the maximum raised in FIG. 1 Position of the press beam 11 is shown, which shows is that there is a distance between the surface of the material to be cut 2 and the lower edge 15 of the press beam 11 remains.
- angle levers 4 laterally, two parallel tie rods engage on the press beam 11 3 on, which are pivotally connected to angle levers 4, the in turn are pivotally mounted in the machine stand 1.
- the other end of the respective angle lever 4 is pivotable with a connecting rod 5 connected, so that the two Drawbars 3 kinematically couples so that synchronism of the press beam 11 is created.
- One of the angle levers 4 has a third having the function of an operating arm Arm 4a, whose free end in the travel of the piston 10a of a hydraulic pressure cylinder 10 that projects in the machine stand 1 is stored.
- the return spring 6 is there formed as a tensile force coil spring.
- the structure of the safety device according to the invention is special the representation of Figures 2 and 3:
- the Connecting rod 5 is concrete by two parallel to each other arranged rods 5a and 5b formed, which are not between them only the free lever arms of the angle lever 4 can be pivoted record, but also designed as an angle element 8 Locking element.
- An axially secured bolt penetrates 16 aligned holes in the two rods 5a and 5b and with Play a hole in the angular area of the angular element 8.
- In Distance to the bolt 16 passes through another axially secured Bolt 17 the rods 5a and 5b as well as with a concentric one to the bolt 16 arranged slot 18 in the substantially vertically oriented lever 8a of the angle element 8.
- leg spring 7 causes the angle element 8 in the position shown in Figure 2 with dashed lines is pivoted, the bolt 17 now in the area of the other End of the elongated hole 18 abuts the lever 8a.
- the figures illustrate that with the lever 8b of the angle element 8 a stored in the machine stand 1, thus stationary Stop part 9 cooperates, which on its lever 8b facing side is designed as a locking link 20.
- the in Area of the locking link not shown contour line 21 of the Rastkulisse 20 is arranged inclined so that at the Angular element 8 acting return spring 6, the free end 8c at every position of the press beam 11 the same, small Has distance to the contour line 21. Breaks the return spring 6, is about the leg spring 7, the angle element 8 in the Dashed position pivoted, the free end 8c of Lever 8b comes against one of the steps 22 of the locking link 20 and prevents the connecting rod 5 from further in Direction of arrow Y moves.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Details Of Cutting Devices (AREA)
- Sawing (AREA)
Description
- Figur 1
- eine schematische Darstellung einer Vorrichtung zum Schneiden von blattförmigem Gut,
- Figur 2
- die in Figur 1 gezeigte Einzelheit "x" in vergrößertem Maßstab und
- Figur 3
- einen Schnitt gemäß der Linie A-A in Figur 2.
Claims (9)
- Vorrichtung zum Schneiden von blattförmigem Gut (2) mit einem Tisch (12) zur Aufnahme des Gutes, einem Messer zum Schneiden des Gutes und einem auf das zu schneidende Gut absenkbaren Preßbalken (11), wobei ein Antrieb (10) zum Absenken des Preßbalkens und eine Rückholfeder (6) zum Anheben des Preßbalkens vorgesehen sind, gekennzeichnet durch eine Fangvorrichtung (7, 8, 9), die bei Bruch der Rückholfeder (6) den Preßbalken (11) arretiert.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Fangvorrichtung (7, 8, 9) bei Bruch der Rückholfeder (6) den Preßbalken (11) mittelbar rastiert.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Fangvorrichtung (7, 8, 9) ein im Antriebsstrang (3, 4, 5, 10) zum Preßbalken (11) angeordnetes Rastierelement (8) aufweist, in dessen Bewegungsweg bei Federbruch ein stationäres Anschlagteil (9) ragt.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Rastierelement (8) im Antriebsstrang (3, 4, 5, 10) zwischen zwei Anschlägen (Bolzen 17, Langloch 18) schwenkbar gelagert ist, wobei die Rückholfeder (6) an einem stationären Bauteil (1) der Schneidvorrichtung und dem Rastierelement (8) angreift, sowie eine Auslösefeder (7) geringerer Federkraft entgegen der Kraftrichtung der Rückholfeder (6) das Rastierelement (8) beaufschlagt.
- Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Preßbalken (11) in einem Maschinenständer (1) geführt ist und der Antriebsstrang (3, 4, 5, 10) des Preßbalkens (11) im wesentlichen durch beidendig des Preßbalkens (11) an diesem angreifenden Zugstangen (3), am anderen Ende der Zugstangen (3) angreifende, im Maschienständer (1) schwenkbar gelagerte Winkelhebel (4), eine die Winkelhebel (4) verbindende Stange (5) sowie einen mit einem der Winkelhebel (4) zusammenwirkenden, eigentlichen Antrieb (10) gebildet ist, wobei die Rückholfeder (6) am Maschinenständer (1) und dem in der Verbindungsstange (5) gelagerten Rastierelement (8) angreift.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß das Rastierelement (8) als Winkelelement ausgebildet ist, das in seinem Eckbereich schwenkbar in der Verbindungsstange (5) gelagert ist, sowie an einem Hebel (8a) des Winkelelements (8) im Bereich des freien Hebelendes die Rückholfeder (6) angreift und das freie Ende (8c) des anderen Hebels (8b) des Winkelelementes (8) in Wirkverbindung mit dem stationären Anschlagteil (9) bringbar ist.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das stationäre Anschlagteil (9) eine Rastkulisse (20) zum, von der Fangposition des Preßbalkens (11) abhängigen Eingriff des Rastierelementes (8) aufweist.
- Vorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß die zwei Anschläge des Rastierelementes (8) durch einen in der Verbindungsstange (5) gelagerten Zapfen (17) gebildet sind, der in Abstand zur Schwenkachse (16) des Rastierelementes (8) ein in diesem angeordnetes, in Schwenkrichtung des Rastierelementes (8) verlaufendes Langloch (18) durchsetzt.
- Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der eigentliche Antrieb (10) zum Verschwenken des Preßbalkens (11) als Druckzylinder ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19502291A DE19502291C1 (de) | 1995-01-26 | 1995-01-26 | Vorrichtung zum Schneiden von blättrigem Gut |
DE19502291 | 1995-01-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0723842A1 EP0723842A1 (de) | 1996-07-31 |
EP0723842B1 true EP0723842B1 (de) | 1998-06-10 |
Family
ID=7752315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95119684A Expired - Lifetime EP0723842B1 (de) | 1995-01-26 | 1995-12-14 | Vorrichtung zum Schneiden von blättrigem Gut |
Country Status (5)
Country | Link |
---|---|
US (1) | US5740710A (de) |
EP (1) | EP0723842B1 (de) |
JP (1) | JPH08229892A (de) |
DE (2) | DE19502291C1 (de) |
ES (1) | ES2118496T3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7237465B2 (en) * | 2005-02-24 | 2007-07-03 | Chien Kai Huang | Operation mechanism for pressing board of electric paper cutters |
US7976001B2 (en) * | 2007-12-28 | 2011-07-12 | Seiko Ltd. | Sheet stack cutter and finisher having the same |
EP3243616B1 (de) * | 2016-05-13 | 2018-06-06 | Adolf Mohr Maschinenfabrik GmbH & Co. KG | Schneidemaschine |
EP3243617B1 (de) * | 2016-05-13 | 2018-06-06 | Adolf Mohr Maschinenfabrik GmbH & Co. KG | Schneidemaschine |
US20180118397A1 (en) * | 2016-10-28 | 2018-05-03 | Illinois Tool Works Inc. | Wrapping machine printer arrangement and wrapping machine film cutter arrangement |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US368672A (en) * | 1887-08-23 | Leather-cutting machine | ||
US440195A (en) * | 1890-11-11 | Press for bundle-wrapping | ||
US53169A (en) * | 1866-03-13 | Paper-cutting machine | ||
US734819A (en) * | 1902-08-11 | 1903-07-28 | George D Clapp | Sole-leather-cutting machine. |
US773742A (en) * | 1904-04-12 | 1904-11-01 | Child Acme Cutter And Press Co | Paper-cutting machine. |
US915532A (en) * | 1907-10-26 | 1909-03-16 | Daniel L Appelberry | Meat-slicer. |
US1091655A (en) * | 1910-04-12 | 1914-03-31 | Julius H Hampp | Material-clamping mechanism for slicing-machines. |
US1018380A (en) * | 1911-07-08 | 1912-02-20 | Nicholas L Minster | Horseshoer's foot-vise. |
US1547828A (en) * | 1923-05-28 | 1925-07-28 | John F Schroeter | Automatic clamping device for paper-cutting and other machines |
US1909598A (en) * | 1929-02-06 | 1933-05-16 | Racine Tool And Machine Compan | Metal sawing machine |
US2397896A (en) * | 1944-04-21 | 1946-04-02 | Cleveland Crane Eng | Shear press |
US2507581A (en) * | 1945-02-26 | 1950-05-16 | Cincinnati Milling Machine Co | Safety device for broaching machines |
US2506651A (en) * | 1946-03-01 | 1950-05-09 | E P Lawson Co Inc | Hydraulic clamp for paper cutters |
US2445248A (en) * | 1946-07-22 | 1948-07-13 | Harris Seybold Co | Cutting machine |
US2506436A (en) * | 1948-12-08 | 1950-05-02 | E P Lawson Co Inc | Cutting knife clamp adjustment |
JPS5039259B1 (de) * | 1970-09-30 | 1975-12-16 | ||
JPS526795B1 (de) * | 1971-02-24 | 1977-02-24 | ||
DE2635604C2 (de) * | 1976-08-07 | 1985-11-07 | Krug & Priester, 7460 Balingen | Papierschneidmaschine |
DE2727817C3 (de) * | 1977-06-21 | 1980-02-07 | Wilhelm Dahle Buero- Und Zeichengeraetefabrik, 8630 Coburg | Schneideinrichtung, insbesondere Stapelschneider |
DE3101911A1 (de) * | 1981-01-22 | 1982-09-02 | Karl Mohr | "vorrichtung zum schneiden von papier, pappe oder dgl.." |
DE3116292A1 (de) * | 1981-04-24 | 1982-11-11 | H. Wohlenberg KG - GmbH & Co, 3000 Hannover | Vorrichtung zur herabsetzung der pressbalkendruckkraft bei einer papierschneidemaschine waehrend der schnittandeutung |
US4561479A (en) * | 1984-04-04 | 1985-12-31 | Burdine Charles M | Mechanical wood splitter |
-
1995
- 1995-01-26 DE DE19502291A patent/DE19502291C1/de not_active Expired - Fee Related
- 1995-12-14 ES ES95119684T patent/ES2118496T3/es not_active Expired - Lifetime
- 1995-12-14 EP EP95119684A patent/EP0723842B1/de not_active Expired - Lifetime
- 1995-12-14 DE DE59502499T patent/DE59502499D1/de not_active Expired - Lifetime
-
1996
- 1996-01-12 JP JP8031109A patent/JPH08229892A/ja active Pending
- 1996-01-25 US US08/591,142 patent/US5740710A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH08229892A (ja) | 1996-09-10 |
DE59502499D1 (de) | 1998-07-16 |
EP0723842A1 (de) | 1996-07-31 |
ES2118496T3 (es) | 1998-09-16 |
DE19502291C1 (de) | 1996-02-15 |
US5740710A (en) | 1998-04-21 |
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