EP4059677B1 - Machine à couper pourvue de deux plaques de guidage destinées au guidage de lame ou de poutre de presse - Google Patents

Machine à couper pourvue de deux plaques de guidage destinées au guidage de lame ou de poutre de presse Download PDF

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Publication number
EP4059677B1
EP4059677B1 EP21163044.7A EP21163044A EP4059677B1 EP 4059677 B1 EP4059677 B1 EP 4059677B1 EP 21163044 A EP21163044 A EP 21163044A EP 4059677 B1 EP4059677 B1 EP 4059677B1
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EP
European Patent Office
Prior art keywords
axle
guide
slot
cutting machine
cutting
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.)
Active
Application number
EP21163044.7A
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German (de)
English (en)
Other versions
EP4059677C0 (fr
EP4059677A1 (fr
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.)
Krug and Priester GmbH and Co KG
Original Assignee
Krug and Priester 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 Krug and Priester GmbH and Co KG filed Critical Krug and Priester GmbH and Co KG
Priority to EP21163044.7A priority Critical patent/EP4059677B1/fr
Priority to CA3148064A priority patent/CA3148064C/fr
Priority to US17/654,589 priority patent/US11584032B2/en
Publication of EP4059677A1 publication Critical patent/EP4059677A1/fr
Application granted granted Critical
Publication of EP4059677B1 publication Critical patent/EP4059677B1/fr
Publication of EP4059677C0 publication Critical patent/EP4059677C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • B26D7/0006—Means for guiding the cutter
    • 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
    • B26D7/26—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
    • B26D7/265—Journals, bearings or supports for positioning rollers or cylinders relatively to each other

Definitions

  • the invention relates to a cutting machine according to the preamble of claim 1.
  • the material to be cut can be a stack of paper, for example.
  • Such a cutting machine is, for example, by the GB 566 754 A known.
  • the smaller cutting machines occupy a certain special position, since the forces required to actuate the pressing of the cuttings are not as high as in larger machines, so that the operator's muscle strength is often sufficient and no motor support is necessary. These machines are often not production machines that the operator works with all day long. Such machines are typically used in copy shops, for example. Partial or full electrification is often used primarily for increased comfort, since the operator's effort is reduced and work can also be done faster in the long term. Since the segment of small machines is particularly price-sensitive, the focus here is on the manufacturing costs for the respective functional principle and must not be too high in relation to the manual machine variant. Therefore, only simple electrification systems are used here, sometimes only the blade drive is motor-driven. If the clippings pressing device is also driven by a motor, the pressing pressure is generally not adjustable.
  • Cutting machines of the medium machine group size have a very wide use, starting from the professional copy shop to in-house printers to professional printers. These machines are particularly suitable for small and medium-sized paper formats, which are often used in digital printing processes. For this reason, this medium-sized machine size group has gained in market importance and the required level of professionalism. The market is increasingly demanding equipment features and working speeds that were previously reserved primarily for machines in the large machine size group. However, the equipment features in the medium machine group segment can usually not be realized using the techniques of the large machine group size. Reasons for this are, for example, the size, the complexity and the Price for the realization of the equipment features. Machines in medium-sized machine groups should be able to be operated on the standard secured single-phase power grid, as this is available at almost all desired locations.
  • the energy efficiency of such machines is important for several reasons.
  • One reason is that, as with all electrically operated devices, the required energy consumption should be kept as low as possible from the point of view of environmental protection and operating costs.
  • Another reason is that the desired single-phase domestic installation limits the possible power consumption and thus the performance of the machine. This means that the more energy-efficient the machine works, the more power can be used productively for the actual machine function.
  • the knife guide must guide the knife through the material to be cut at an angle (typically 45°) during the downward movement. This is advantageous because a simultaneous horizontal and vertical movement of the knife in relation to the material to be cut during the cutting process leads to better cutting results with reduced cutting forces at the same time.
  • Another important aspect of knife guidance is the required operator safety. In order to minimize the risk of injury, the distance between the knife edge and the press beam arranged directly behind it must be as small as possible. A larger gap carries the risk that the operator could injure himself on the exposed knife edge.
  • a motor-driven crank mechanism transmits a tensile force to its connecting rod, which in turn is connected to the cutter bar.
  • a downward force acts on the connecting rod and thus on the cutter bar via the crank mechanism.
  • the cutter bar In order to ensure the downward movement of the cutter bar under 45°, the cutter bar must be guided accordingly.
  • so-called guide rails are often additionally attached to the guide plates at the desired angle.
  • the cutter bar is fitted with appropriate rollers that are forced to roll on the guide rails as it moves up and down.
  • Many additional components are often required for the guidance of the press beam, as well as for the knife guidance, which make the structure complicated, expensive and often also imprecise. If the overall structure of the machine is designed in such a way that abnormal operation, such as the knife jamming due to incorrect depth setting or uncuttable material to be cut, is to be covered, this leads to further disproportionately bulky and therefore expensive machines.
  • JP 2017 164865 A discloses a cutting machine with an incline-adjustable bottom cutter and a height-adjustable top cutter that interacts with the bottom cutter.
  • the present invention is therefore based on the object of developing a pressing and knife guide structure which meets the requirements listed above while at the same time largely avoiding the disadvantages.
  • this object is achieved by a cutting machine having the features of claim 1 .
  • the number of necessary guide plates is halved from four to two, and the two guide plates that are present not only guide the cutter bars, but also guide the press bars.
  • the desired angle e.g. 45°
  • the downward force of the cutting drive acting on the cutter bar must be converted into a downward movement of the cutter bar corresponding to the desired angle.
  • the guide plates have the slot guide.
  • the roller axes of the rollers of those two axle carriers to which the cutter bar is attached are slidably mounted in a direction perpendicular to the vertical plane of the two guide plates in order to adjust the inclination of the knife and the gap between the cutter and the press bar.
  • This displaceable mounting of the roller axles can be done in a particularly simple manner by means of a rotatable eccentric sleeve on which the roller is rotatably mounted.
  • the cutter bar fastened to the guide units can be adjusted in its angular position in relation to the guide plates.
  • the cutting support on which the material to be cut rests can also be adjusted in its angle of inclination, so that here too a simple tolerance compensation of all tolerances to be expected from production is given.
  • the two plate sides of the guide plate preferably have rolling tracks for the rolling elements, for example in the form of guide grooves, above and below the slot, each running parallel to the slot.
  • the axle particularly preferably has at least one roller, in particular a roller bearing, which rolls in the slot.
  • the elongated hole forms two parallel guide surfaces between which one or more rollers, which are advantageously designed as roller bearings, are arranged and roll.
  • the rollers are received between the front and rear guide sub-units by means of the axle.
  • the axis absorbs the tensile forces that result from the adjustable connection between the associated guide sub-units, but on the other hand, it also absorbs the axial loads that are introduced during the cutting process via the rollers attached to it.
  • the cutter bar fastened to the guide units can therefore only move along the path specified by the parallel guide surfaces of the elongated holes.
  • the axle can have at least one e.g. specially coated sliding surface element that slides in the slot.
  • a spring pack is also installed on the axle, which is braced when the axle carrier is adjusted and, after the adjustment has been made, still allows a minimal axial movement of the guide sub-units to one another.
  • the spring assembly can, for example, be supported at one end on the axle support and at the other end on one end of the axle.
  • the two guide plates have an opening above or below the slot, for example in the form of a second slot running parallel to the slot.
  • the guide units each have a connecting element, in particular in the form of an axle, which extends through the opening and connects the two axle supports of the guide unit to one another.
  • a spring pack is also installed on the connecting element, which is braced when the axle carrier is adjusted and, after the adjustment has been made, still allows a minimal axial movement of the guide sub-units to one another.
  • the facing faces of the two guide plates have vertical guides, e.g. in the form of longitudinal grooves.
  • the press beam itself forms the counterpart that fits into the guides. In this way, the press beam cannot move further in its longitudinal and transverse directions than the specified play between the guides in the guide plates and the press beam allows. The press beam thus moves exactly along the specified vertical guide grooves.
  • the cutting drive preferably has an overload safety device in the form of a separable drive connecting rod, the separation of which is monitored electrically.
  • the cutting machine 1 shown comprises a cutting support 2 for the cuttings to be cut, a cutter bar 3 that can be moved vertically (here diagonally downwards) and carries a cutting blade 4 for cutting the cuttings lying on it, a press beam 5 that can be moved in height to press down the cuttings to be cut, and a cutting drive 6 for Vertical displacement of the cutter bar 3 and a press drive 7 for vertical displacement of the press beam 5.
  • the two drives 6, 7 can each be manually operated or electrically driven.
  • the cutting machine 1 has a sandwich design and has a machine base body made of two vertical base plates 8 between which two lateral guide plates 9 , which are preferably identical in construction, are fastened by means of screw connections.
  • the two guide plates 9 are arranged parallel to one another in the same vertical plane and, as in 2 is shown in detail, in each case a first linear slot 10 , for example inclined at 45°, in which the cutter bar 3 is guided, and on their mutually facing end faces a vertical guide 11 in which the press bar 5 is guided.
  • the guide plates 9 below the first elongated hole 10 each have a second inclined linear elongated hole 12 running parallel to the first elongated hole 10 .
  • the cutter bar 3 is guided in each of the two first elongated holes 10 by means of a guide unit 13 .
  • the guide unit 13 has a first axis 14 passing through the first slot 10 with a roller bearing 15 which rolls in the slot guide 10 and a second axis 16 passing through the second slot 12 .
  • the guide unit 13 On both plate sides 9a, 9b of the guide plate 9, the guide unit 13 has an axle carrier 17a, 17b , to which the axle ends of the first and second axles 14, 16 are fastened.
  • the cutter bar 3 is fastened to the front axle carriers 17a, both clamped by means of the first axle 13 and screwed on by means of a screw 18 .
  • the first and the second axle 14, 16 are supported at one end on the cutter bar 3 or on the front axle carrier 17a and at the other end are supported by means of a spring assembly 19 on the rear axle carrier 17b.
  • the axle supports 17 each have a roller 20 (e.g. in the form of a radial deep groove ball bearing) above the first slot 10 and below the lower slot 12, which roll on the respective plate side 9a, 9b of the guide plate 9 parallel to the first slot 10, specifically on a roller tracks 21 incorporated into the plate sides 9a, 9b.
  • the rollers 20 are rotatably mounted on an eccentric sleeve 22 which is screwed to an inclined surface 23 of the axle support 17 by means of a screw 24 .
  • This setting is used for the upper and lower rolls respectively 20 is not carried out in the same way, there is both a change in the angle of the guide unit 13 to the guide plate 9 and thus a desired vertical change in the angle of the knife 4 to the material to be cut, as well as a desired gap distance X between the knife 4 and the press beam 5 ( figure 5 ).
  • the downward force of the drive connecting rod acting on cutter bar 3 must be converted into a downward movement of the cutter bar corresponding to the desired angle (45°).
  • the cutting drive 6 has a motor-driven crank drive 25 in order to transmit a tensile force to a drive connecting rod 26 which in turn is connected to the cutter bar 3 .
  • a downward tensile force acts on the drive connecting rod 26 and thus on the cutter bar 3 via the crank drive 25 .
  • a corresponding overload protection 27 is installed so that the machine structure does not have to be dimensioned larger than is necessary for the intended cutting function.
  • This overload protection 27 is part of the drive connecting rod 26. If, due to incorrect operation or other reasons, the blade movement is abruptly blocked and extreme load peaks occur in the entire machine structure, a replaceable safety part 28 is torn off or sheared off in a defined manner. This safety part 28 connects the two halves of the connecting rod, which are each connected at their end points to the cutter bar 3 and the crank mechanism 25, respectively.
  • the mechanics are designed in such a way that the drive connecting rod 26 can move apart a little and thus lengthen after the overload protection device 27 has been triggered and thus after the safety part 28 has been destroyed, but it does not separate completely and the knife 4 can therefore move back into its defined safe end position .
  • the fact that the drive connecting rod 26 can lengthen when the safety part 28 is destroyed means that the knife blocking no longer has any further influence on the ongoing movement cycle.
  • the cutting drive 6 and thus the entire system continue to run without load until the crank mechanism 25 drives the cutter bar 3 as intended via the drive connecting rod 26 in has moved on to the safe upper end position.
  • the drive connecting rod 26 is loaded in compression instead of in tension.
  • the length of the connecting rod consisting of the separate halves of the connecting rod, is unchanged even after the overload protection device 27 has responded, which means that the system behaves the same in return with and without an activated overload protection device 27 .
  • the response of the overload protection 27 and thus also the destroyed safety part 28 should be recognized immediately and not only in the next cutting cycle, in that the material to be cut is not cut, since the drive connecting rod 26 can no longer transmit tensile forces.
  • an electrical connection is torn parallel to the mechanical safety part 28, which can be realized, for example, in the form of an electrical monitoring part (eg printed circuit board) 29 , which, like the safety part 28, is destroyed.
  • an electrical monitoring part eg printed circuit board
  • the mechanical safety part 28 can also form the electrical monitoring part 29 at the same time.
  • the electrical monitoring can also be carried out by means of a switch, but by means of mechanical destruction, a very high level of functional reliability can be achieved at low costs at the same time.
  • the press beam 5 should lower itself vertically onto the cut material and fix it in the desired manner so that a clean cut can then be made.
  • a force directed downwards acts on the press beam 5 and is provided by the press drive 7 .
  • this can be done by a motor that pivots a synchronous shaft 30 about its longitudinal axis by a maximum of 180° via a mechanical and/or hydraulic unit.
  • Extension arms 31 are attached to the ends of the synchronizing shaft 30 and are articulated at their outer end to connecting levers 32 which in turn are articulated to the press beam 5 . Now rotates the synchronizing shaft 30, the arms 31 pivot in the same way about the longitudinal axis of the synchronizing shaft 30.
  • the arms 31 and thus the press beam 5 are in an upper position.
  • the synchronizing shaft 30 rotates in such a way that the arms 31 and with them the press beam 5 connected via the connecting lever 32 move into a lower position. The lowest position is reached when the press beam 5 is seated on the cutting material or, if no such material is inserted, on the cutting support 2. If a torque continues to be applied to the synchronizing shaft 30, this is converted into the desired pressing force, which acts on the material to be cut. In addition to subjecting the press beam 5 to the necessary force directed downwards, it must be moved vertically downwards, parallel to the cutter beam 3 .

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)

Claims (9)

  1. Machine de découpe (1) comprenant une embase de sectionnement (2) destinée à un matériau à découper ; une barre horizontale (3) porte-lame, déplaçable en hauteur et portant une lame (4) dévolue au sectionnement de matériau à découper reposant à plat ; une barre horizontale de compression (5) déplaçable en hauteur, conçue pour exercer une pression de haut en bas sur ledit matériau à découper ; et deux platines de guidage (9) placées en juxtaposition avec espacement parallèle dans le même plan vertical, respectivement munies d'un trou oblong rectiligne incliné (10) dans lequel la barre (3) porte-lame est guidée, et respectivement pourvues, à leurs faces extrêmes pointant l'une vers l'autre, d'un guide vertical (11) sur lequel la barre de compression (5) est guidée, sachant que ladite barre (3) porte-lame est guidée à chaque fois, dans les trous oblongs (10) des deux platines de guidage (9), au moyen d'une unité de guidage (13) comportant une cheville (14) guidée dans le trou oblong (10) avec faculté de roulement ou de glissement, et sachant que ladite unité de guidage (13) est dotée, des deux côtés (9a, 9b) de la platine de guidage (9), d'un support respectif (17a, 17b) auquel ladite cheville (14) est fixée,
    caractérisée par le fait
    que le support (17a, 17b) de la cheville est nanti, au-dessus et au-dessous du trou oblong (10), d'éléments de roulement (20) qui roulent extérieurement sur le côté respectif (9a, 9b) des platines, parallèlement audit trou oblong (10) ;
    par le fait que lesdits éléments de roulement (20) sous conçus sous la forme de rouleaux (20), notamment en tant que roulements à billes radiaux rainurés qui roulent, extérieurement, sur le côté (9a, 9b) de la platine de guidage (9) ; et
    par le fait que les axes des rouleaux (20) des deux supports (17a) de ladite cheville, auxquels la barre (3) porte-lame est fixée, sont montés avec mobilité dans une direction perpendiculaire au plan vertical des deux platines de guidage (9), de manière à régler l'inclinaison de la lame (4) et la cote (X) de l'interstice entre ladite lame (4) et la barre de compression (5).
  2. Machine de découpe selon la revendication 1, caractérisée par le fait que la cheville (14) est pourvue d'au moins un rouleau, en particulier d'un palier de roulement (15) qui roule dans le trou oblong (10), ou d'au moins un élément à glissement superficiel qui glisse dans ledit trou oblong (10).
  3. Machine de découpe selon la revendication 1 ou 2, caractérisée par le fait que le montage mobile des axes des rouleaux est constitué, à chaque fois, d'un manchon rotatif excentré (24) sur lequel le rouleau (20) est monté à rotation.
  4. Machine de découpe selon l'une des revendications précédentes, caractérisée par le fait que les deux côtés (9a, 9b) de la platine de guidage (9) sont munis, au-dessus et au-dessous du trou oblong (10), de pistes de roulement (21) dédiées aux éléments de roulement (20) et s'étendant, à chaque fois, parallèlement audit trou oblong (10).
  5. Machine de découpe selon l'une des revendications précédentes, caractérisée par le fait qu'au moins l'une des deux extrémités de la cheville (14) est fixée au support (17b) de ladite cheville au moyen d'un groupe de ressorts (19) prenant appui, par une extrémité, sur ledit support (17b) de la cheville et, par l'autre extrémité, sur ladite extrémité de la cheville.
  6. Machine de découpe selon l'une des revendications précédentes, caractérisée par le fait que les deux platines de guidage (9) comportent un évidement (12) au-dessus ou au-dessous du trou oblong (10) et les unités de guidage (13) sont dotées, à chaque fois, d'un élément de liaison (16) qui revêt notamment la forme d'une cheville , traverse ledit évidement (12) et relie, l'un à l'autre, les deux supports (17a, 17b) de la cheville de l'unité de guidage (13).
  7. Machine de découpe selon la revendication 6, caractérisée par le fait que l'évidement (12) se présente comme un second trou oblong (12) s'étendant parallèlement au trou oblong (10).
  8. Machine de découpe selon la revendication 6 ou 7, caractérisée par le fait qu'au moins l'une des deux extrémités de l'élément de liaison (16) est fixée au support (17b) de la cheville au moyen d'un groupe de ressorts (19) prenant appui, par une extrémité, sur ledit support (17b) de la cheville et, par l'autre extrémité, sur ladite extrémité de l'élément de liaison (16).
  9. Machine de découpe selon l'une des revendications précédentes, caractérisée par le fait que les guides verticaux (11) de la barre de compression (5) sont conçus, à chaque fois, comme une rainure de guidage dans laquelle ladite barre de compression (5) est guidée.
EP21163044.7A 2021-03-17 2021-03-17 Machine à couper pourvue de deux plaques de guidage destinées au guidage de lame ou de poutre de presse Active EP4059677B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP21163044.7A EP4059677B1 (fr) 2021-03-17 2021-03-17 Machine à couper pourvue de deux plaques de guidage destinées au guidage de lame ou de poutre de presse
CA3148064A CA3148064C (fr) 2021-03-17 2022-02-04 Machine de decoupe avec deux plaques de guidage pour le guidage de la lame et des barres de serrage
US17/654,589 US11584032B2 (en) 2021-03-17 2022-03-12 Cutting machine with two guide plates for the guidance of blade and clamping bars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21163044.7A EP4059677B1 (fr) 2021-03-17 2021-03-17 Machine à couper pourvue de deux plaques de guidage destinées au guidage de lame ou de poutre de presse

Publications (3)

Publication Number Publication Date
EP4059677A1 EP4059677A1 (fr) 2022-09-21
EP4059677B1 true EP4059677B1 (fr) 2023-06-07
EP4059677C0 EP4059677C0 (fr) 2023-06-07

Family

ID=74947095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21163044.7A Active EP4059677B1 (fr) 2021-03-17 2021-03-17 Machine à couper pourvue de deux plaques de guidage destinées au guidage de lame ou de poutre de presse

Country Status (3)

Country Link
US (1) US11584032B2 (fr)
EP (1) EP4059677B1 (fr)
CA (1) CA3148064C (fr)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE222235C (fr) * 1909-06-15 1910-05-21
GB566754A (en) * 1942-11-02 1945-01-11 Harris Seybold Potter Co Improvements in or relating to cutting machines
DE4206338C2 (de) * 1992-02-29 2000-06-15 Perfecta Schneidemaschinenwerk Gmbh Schneideinrichtung für Schneidemaschinen zum Beschneiden von Papier, Pappe oder anderen stapelbaren Materialien
US6079304A (en) * 1998-04-14 2000-06-27 Wondebar Construction Corporation Pinch blade tool and method for patterning asphalt shingles with indentations
EP1172185A1 (fr) * 2000-07-14 2002-01-16 Adolf Mohr Maschinenfabrik GmbH & Co. KG Dispositif pour la coupe de matériaux en feuille
US20090007746A1 (en) * 2007-07-06 2009-01-08 Dalen Eugene Gunn Lightweight tabletop shearing apparatus
US10173337B2 (en) * 2013-07-22 2019-01-08 Canon Finetech Nisca Inc. Sheet cutting device
JP6498623B2 (ja) * 2016-03-17 2019-04-10 富士商工マシナリー株式会社 切断機
US10940658B2 (en) * 2016-04-29 2021-03-09 Ranpak Corp. Cutting mechanism for a dunnage conversion machine and method
US20180200913A1 (en) * 2017-01-16 2018-07-19 Charlie Zhang Cutting tool with adjustable cutting blade
US11298848B1 (en) * 2019-01-22 2022-04-12 Core Stripper, Inc. Bulk roll cutting apparatus with safety linkage and related methods
JP7293146B2 (ja) * 2020-02-05 2023-06-19 日本発條株式会社 ダイセット装置
JP7441510B2 (ja) * 2020-08-26 2024-03-01 デュプロ精工株式会社 シート加工装置

Also Published As

Publication number Publication date
CA3148064A1 (fr) 2022-03-22
EP4059677C0 (fr) 2023-06-07
US11584032B2 (en) 2023-02-21
CA3148064C (fr) 2022-11-22
EP4059677A1 (fr) 2022-09-21
US20220297328A1 (en) 2022-09-22

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