EP0736362A2 - Guillotine - Google Patents

Guillotine Download PDF

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Publication number
EP0736362A2
EP0736362A2 EP96103023A EP96103023A EP0736362A2 EP 0736362 A2 EP0736362 A2 EP 0736362A2 EP 96103023 A EP96103023 A EP 96103023A EP 96103023 A EP96103023 A EP 96103023A EP 0736362 A2 EP0736362 A2 EP 0736362A2
Authority
EP
European Patent Office
Prior art keywords
knife
machine according
pressure piece
support shaft
bar
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
Application number
EP96103023A
Other languages
German (de)
English (en)
Other versions
EP0736362A3 (fr
EP0736362B1 (fr
Inventor
Helmut Gross
Frank Stemmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adolf Mohr Maschinenfabrik GmbH and Co KG
Original Assignee
Adolf Mohr Maschinenfabrik GmbH and Co KG
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 Adolf Mohr Maschinenfabrik GmbH and Co KG filed Critical Adolf Mohr Maschinenfabrik GmbH and Co KG
Publication of EP0736362A2 publication Critical patent/EP0736362A2/fr
Publication of EP0736362A3 publication Critical patent/EP0736362A3/fr
Application granted granted Critical
Publication of EP0736362B1 publication Critical patent/EP0736362B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B26D1/06—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 wherein the cutting member reciprocates
    • B26D1/08—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 wherein the cutting member reciprocates of the guillotine 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8867—With means to adjust tool position on tool holder
    • 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
    • Y10T83/9483—Adjustable
    • 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
    • Y10T83/9483—Adjustable
    • Y10T83/9486—Rectilinearly

Definitions

  • the invention relates to a face cutting machine, in particular for cutting leafy material, with a table for receiving the material to be cut and a cutting device which can be moved in a vertical plane to the table surface which receives the material and which can be moved in a frame of the machine has mounted knife bar and a knife attached to it, at least two adjustable devices being mounted at a distance from each other in the knife bar, for supporting the knife in the area of the knife back on the knife bar.
  • Face cutting machines are known from the prior art in a wide variety of variants, for example according to EP-A-0056874.
  • Face cutting machines of the type mentioned are known from practice.
  • the knife is connected to the cutter bar by means of several fastening screws.
  • the screws are screwed into the tapped holes of the knife and penetrate elongated holes in the cutter bar that extend vertically to the table surface.
  • the knife can be positioned in the desired position relative to the knife bar depending on its degree of wear and thus its regrinding.
  • it is customary to support the knife against the knife bar in addition to the fastening screws in at least two places. This is usually solved using adjusting screws or cams that are adjustable in the stroke direction of the knife and press against the back of the knife.
  • the disadvantage here is that adjusting screws and cams dig into the soft back of the knife and the knife thus changes its position relative to the knife bar, with the consequence that damage to the knife during operation, for example due to the knife back breaking out, can occur or with an exact cut is no longer possible for the knife.
  • the object of the invention is to develop a face-cutting machine of the type mentioned at the outset such that a position set between the knife and the knife bar is permanently maintained with simple structural means.
  • the problem is solved in a face-cutting machine of the type mentioned at the outset in that the respective adjustable Device is supported by a pressure piece on the back of the knife, the pressure piece being hard at least in the contact area with the respective adjustable device.
  • This hard pressure piece is a separate component, so that in order to prevent the adjustable device from digging into the back of the knife, it is not necessary to harden the entire knife made of metal. Rather, it is sufficient to design the pairing between the adjustable device and the pressure piece with the corresponding hardness; Such hardness of the materials is not necessary between the pressure piece and the back of the knife, since the surface pressure between these parts is relatively low.
  • the adjustable devices used which are designed, for example, as cams or set screws, consist of hardened metal and the pressure piece in the contact area with the adjustable device is hard, preferably also consists of hardened metal.
  • the adjustable devices and the pressure piece can be made of any materials provided that they have the corresponding hardness and are suitable to withstand a high surface pressure.
  • the great hardness of the pressure piece allows the cutting knife to be constructed in two parts, namely consisting of a knife holder made of non-hardened metal connected to the knife bar and a knife plate connected to the knife holder and actually carrying out the cut through the material, which, for example, is accommodated in a recess of the knife holder and is soldered to it.
  • hard material is only used where there are high forces or surface pressures. In the other areas, it is sufficient to use less expensive, unhardened material.
  • a preferred design provides that the adjustable device used in each case has a cam.
  • This is expediently connected to a support shaft arranged perpendicular to it and supported in the knife.
  • the cam disc leaves thus twist relative to the cutter bar and, due to their curve design, causes a more or less strong change in position of the cutter relative to the cutter bar.
  • the cam disc can have, for example, a circumferential surface section which extends essentially over a semicircle and can be brought into contact with the back of the knife, the axis of the support shaft being arranged at a distance from the center of the circle. This results in an eccentricity that allows a maximum feed movement to be carried out when the cam disc is rotated by approximately 180 °.
  • the infeed movement of the cam can also take place over a larger swivel angle, for example by means of a spiral configuration of the cam, with a swivel angle of, for example, 300 °.
  • the cam disc transmits the forces applied to it via the knife into the knife bar via the support shaft.
  • the cam disc can thus in principle be pivotable relative to the support shaft, in which case it is to be fixed, for example by being connected to the cutter bar in its set position resting on the blade back.
  • the cam disc is advantageously connected in a rotationally fixed manner to the support shaft, which in turn can be fixed axially by means of a clamping element in the direction of rotation.
  • the cam disc can also be fixed by means of a friction lining arranged between the latter and the cutter bar. This can be provided in addition to the clamping element.
  • the respective support shaft should penetrate a hole in the knife carrier and thus be rotatable and fixable by the operator of the cutting machine.
  • the pressure piece does not form part of the knife, but is arranged freely between the back of the knife and the adjustable device.
  • the pressure piece therefore always lies optimally on the back of the knife, even if it is warped or not positioned exactly for other reasons.
  • the pressure piece is connected to a plate-shaped guide element which is arranged between the cam and the cutter bar and engages behind the support shaft.
  • the guide element is thus fixed between the cam disc and the cutter bar, the rear grip of which causes it to be suspended in the supporting shaft when the cutter is removed.
  • the guide element advantageously has an elongated hole, the support shaft passing through this elongated hole.
  • a special development of the invention provides that a spacer is arranged between the pressure piece and the knife. This is used when the knife is worn so far that a maximum infeed movement of the adjustable devices is not sufficient to position the back of the knife at the required distance from the knife bar. A further infeed movement of the knife is thus possible in accordance with the strength of the spacer.
  • the spacer is expediently connected to the knife, in particular screwed to the knife.
  • the pressure pieces and / or the spacers are advantageously arranged only in the area of the knife where the pressure forces are to be transmitted.
  • the pressure pieces and / or the spacers are advantageously cuboid.
  • the knife bar In order to ensure that the knife is fastened to the knife bar depending on its different relative positions, the knife bar must be provided with several elongated holes that extend in the adjustment direction of the knife relative to the knife carrier, with each elongated hole being assigned at least one threaded hole in the knife, and a fastening screw for this elongated hole and penetrates the threaded hole.
  • each elongated hole being assigned at least one threaded hole in the knife, and a fastening screw for this elongated hole and penetrates the threaded hole.
  • the knife should have several threaded bores associated with each elongated hole, which are spaced from one another in relation to the longitudinal extent of the elongated hole. The length of the respective elongated hole can thus be kept relatively small, with the respective fastening screw being screwed into the threaded bore associated with the elongated hole in order to achieve the large adjustment path.
  • the face cutting machine 1 shown in FIG. 1 has a stand 2 with a table 3 and a portal frame 4 each extending above the table.
  • the table 3 serves to receive the material to be cut in a cuboid shape on the table surface 6, which extends perpendicular to the plane of the sheet.
  • the material to be cut is in particular a stack of snow material formed from leaves. The good to be cut is not shown in the figure.
  • Figure 1 illustrates the face cutting machine, seen from the operator side. Behind the portal frame 4, a feed saddle 7 is mounted in the table 3 for moving the material to be cut perpendicular to the plane of the sheet. The figure shows the individual rake-like approaches 8 of the feed saddle.
  • a cutter bar 9 is mounted in the portal frame 4 and is essentially vertical, i.e. movable in the sheet plane.
  • a knife 10, which is only visible in the lower region, is arranged behind the knife bar 9 and screwed to the knife bar 9. Screws, not shown in FIG. 1, penetrate a plurality of vertically oriented elongated holes 11 in the cutter bar 9 and corresponding threaded bores in the cutter 10 intended.
  • the lower surface of the press bar 12 is illustrated by reference number 5, the cutting edge of the knife 10 by the line 13.
  • the lower contour of the knife bar 9 and knife 10 is inclined to the table surface 6, since the knife bar 9 and the knife 10 are moved in the swinging cut and consequently only come to lie parallel to the table surface 6 in their bottom dead centers.
  • FIG. 1 illustrates the cutter bar 9, the cutter 10 and the press beam 12 in their respective raised positions.
  • FIG. 1 a data input keyboard 14, a screen 15, switch 16, control buttons 17, a foot lever 19 for the cut indication and side panels 18 are also illustrated.
  • the face cutting machine has two devices 20 for knife adjustment and support arranged at a horizontal distance from one another in the area of the knife bar 9.
  • One of these devices 20 is described in detail for two embodiments in the following FIGS. 2-5.
  • FIGS. 1 illustrates in the area of two elongated holes 11 of the cutter bar 9, the connection of the knife 10 with the cutter bar 9.
  • Each elongated hole 11 is penetrated by a fastening screw 21, illustrated only for its threaded section, which is inserted from the front through the elongated hole 11 and into a corresponding threaded hole of the knife 10 is screwed.
  • the slot 11 oriented vertically to the table surface 6 allows the distance between the lower edge 13 of the knife and the table surface 6 to be changed when the knife bar 9 is in an unchangeable position.
  • the device 20 for knife support and its adjustment is suitable for supporting the knife 10 in any position. For this purpose, as can be seen in FIGS.
  • a cam disk 22 which has a circumferential surface section 23 which extends in a spiral and essentially over an angle of approximately 300 °.
  • a support shaft 24 is connected non-rotatably to the cam disk 22 and penetrates a horizontally oriented through hole 25 in the cutter bar 9 in a radially free manner. The spiral runs about the pivot axis 26 of the support shaft 24.
  • the support shaft 24 is fixedly connected to the cam plate 22 by forming the support shaft 24 with a square insert which penetrates a corresponding opening in the cam plate 22 to form a press fit.
  • a cuboidal pressure piece 29 made of hardened metal is inserted between the cam plate 22 and the knife back 28.
  • This is connected to a guide plate 31 by means of two screws 30. It extends in the vertical direction and receives the pressure piece 29 in the region of its lower end and is provided in its central region with an elongated hole 32 which extends in its longitudinal direction.
  • the guide plate 31 is arranged between the cam plate 22 and the cutter bar 9, the support shaft 24 passing through the elongated hole 32 of the guide plate 31.
  • the cam plate 22 and the pressure piece 29 are made of hardened steel around the surface pressure to be able to master due to the line contact between these parts. Because of the relatively low surface pressure between the pressure pieces 29 and the knife 10 in the area of the knife back 28, the knife 10 is formed in two parts. It consists in a known manner of a knife carrier 33 made of non-hardened steel, which has the knife back 28, and a knife plate 34, which carries out the actual cutting and is provided with the cutting edge 13, which is inserted into a recess of the knife carrier 33 and is brazed to the latter .
  • the knife plate 34 is made of hardened steel.
  • the knife 10 can be resharpened in accordance with the vertical extent of the knife plate 34, thus reducing its vertical dimension. Due to the design of the face cutting machine with the device for adjusting the knife support, the knife 10 can be supported in a defined manner until it is completely ground off by means of the two cam disks 22 arranged at a distance from one another.
  • FIG. 2 illustrates the width dimension of a new knife 10 with the distance dimension x '.
  • the knife 10 wears out, it is removed from the cutter bar 9, the respective pressure piece 29 being held captively in the cutter bar 9 by means of the guide plate 31 due to its oscillating suspension in the associated support shaft 24.
  • the knife 10 After the knife 10 has been sharpened, it is loosely connected to the knife bar 9 by means of the fastening screws 21 and the two cam disks 22 are rotated and thus adjusted with respect to the pressure pieces 29 so that the cutting edge 13 of the knife 10 is slightly in at knife bar 9 located at the bottom dead center a cutting bar, not shown, penetrates into the table 3. In this position, the fastening screws 21 are tightened.
  • the supporting action of the cam disks 22 is effective as long as the width of the cutting knife 10 does not fall below the dimension x.
  • a cuboid spacer 35 made of non-hardened metal is screwed to the knife carrier 33 in the region of the knife back 28 by means of several screws 36.
  • the figure shows that the distance between the pressure piece 29 and the knife 10 effective 35 the full stroke of the associated cam 22 is available again.
  • the fastening screws 21 are positioned approximately in the area of the upper ends of the elongated holes 11, the maximum infeed movement of the cam disks 22 results in a position of the fastening screws 21 approximately in the middle of the elongated holes 11, as shown in FIG. 2 and with a maximum feed movement of the cam disks 22, using the spacer 35, a position of the fastening screws 21 in the region of the lower ends of the elongated holes 11.
  • the length of the elongated holes 11 can be reduced if a plurality of threaded bores are provided in the knife 10 in the longitudinal extent of the respective elongated hole 11, so that 10 different threaded bores 21 can be used depending on the width of the knife.
  • the length of the elongated hole 32 in the respective guide plate 31 is dimensioned such that the support shaft 24 can freely pass through the elongated hole 32 during the eccentric stroke.
  • the cam plate 22 is shrunk onto the rear end of the support shaft 24.
  • the support shaft 24 is passed through the bore 25 of the cutter bar 9 and can be fixed in the front area facing away from the associated cam plate 22 by means of a clamping plate 37.
  • the clamping plate 37 has a recess 38 in the cutter bar 9 and is provided with a bore whose diameter is slightly larger than the outside diameter of the support shaft 24.
  • Parallel to the axis 26, the clamping plate 37 is provided with a threaded hole 39 into which a screw 40 is screwed , whose shaft penetrates a blind hole 41 in the cutter bar 9.
  • the clamping plate 37 tilts slightly and thus places the associated support shaft 24 both axially and in the direction of rotation firmly.
  • the front end of the support shaft 24 is provided with a locking ring 42.
  • the support shaft 24 is provided on the operator side with a hexagon socket 43 for inserting an Allen key.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Shearing Machines (AREA)
EP96103023A 1995-04-03 1996-02-29 Guillotine Expired - Lifetime EP0736362B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19512106A DE19512106C1 (de) 1995-04-03 1995-04-03 Planschneidmaschine
DE19512106 1995-04-03

Publications (3)

Publication Number Publication Date
EP0736362A2 true EP0736362A2 (fr) 1996-10-09
EP0736362A3 EP0736362A3 (fr) 1997-02-05
EP0736362B1 EP0736362B1 (fr) 1998-11-25

Family

ID=7758439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103023A Expired - Lifetime EP0736362B1 (fr) 1995-04-03 1996-02-29 Guillotine

Country Status (6)

Country Link
US (1) US5784940A (fr)
EP (1) EP0736362B1 (fr)
JP (1) JPH08267395A (fr)
DE (2) DE19512106C1 (fr)
ES (1) ES2125069T3 (fr)
SG (1) SG77112A1 (fr)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
DE19726993A1 (de) * 1997-06-25 1999-01-07 Jagenberg Papiertech Gmbh Messertrommel für Maschinen zum Querschneiden von Materialbahnen
EP1060857A1 (fr) * 1999-06-16 2000-12-20 BACHER, Helmut Support de lames pour appareils de granulation
DE202007018569U1 (de) 2006-12-18 2009-01-15 Adolf Mohr Maschinenfabrik Gmbh & Co. Kg Planschneidmaschine zum Schneiden von Stapeln blättrigen Guts

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JP4505801B2 (ja) * 2004-06-15 2010-07-21 豊和工業株式会社 シート切断機のカッタホルダ及びカッタの傾き補正用治具
US20120035636A1 (en) * 2009-02-20 2012-02-09 Albert Daxer Device for cutting the cornea of an eye
JP2011005585A (ja) * 2009-06-25 2011-01-13 Nisca Corp シート束断裁装置及びこれを備えた製本装置
CN106945090B (zh) * 2017-05-05 2018-10-30 浙江班萘特复合材料股份有限公司 一种薄膜生产用高精度切膜装置
US10786922B2 (en) * 2017-05-16 2020-09-29 Urschel Laboratories, Inc. Modular units, clamping assemblies, and slicing machines equipped therewith
JP6738520B1 (ja) * 2020-03-26 2020-08-12 近畿刃物工業株式会社 切断加工用刃物
CN112720666A (zh) * 2021-01-21 2021-04-30 浙江华岳包装机械有限公司 切纸机切纸部件
EP4059676B1 (fr) * 2021-03-17 2023-06-07 Krug & Priester GmbH & Co. KG Machine à couper à réglage de la profondeur de lame
KR102780093B1 (ko) * 2022-09-13 2025-03-14 주식회사 디큐브 블레이드 홀더
JP2025036839A (ja) * 2023-09-05 2025-03-17 株式会社ホリゾン 断裁装置

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19726993A1 (de) * 1997-06-25 1999-01-07 Jagenberg Papiertech Gmbh Messertrommel für Maschinen zum Querschneiden von Materialbahnen
US6155151A (en) * 1997-06-25 2000-12-05 Jagenberg Papiertechnik Gmbh Cutter drum for web-cutting machine
EP1060857A1 (fr) * 1999-06-16 2000-12-20 BACHER, Helmut Support de lames pour appareils de granulation
DE202007018569U1 (de) 2006-12-18 2009-01-15 Adolf Mohr Maschinenfabrik Gmbh & Co. Kg Planschneidmaschine zum Schneiden von Stapeln blättrigen Guts

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US5784940A (en) 1998-07-28
ES2125069T3 (es) 1999-02-16
JPH08267395A (ja) 1996-10-15
SG77112A1 (en) 2000-12-19
EP0736362A3 (fr) 1997-02-05
EP0736362B1 (fr) 1998-11-25
DE19512106C1 (de) 1996-11-07
DE59600854D1 (de) 1999-01-07

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