EP3957448B1 - Dispositif couteau circulaire - Google Patents

Dispositif couteau circulaire

Info

Publication number
EP3957448B1
EP3957448B1 EP21191133.4A EP21191133A EP3957448B1 EP 3957448 B1 EP3957448 B1 EP 3957448B1 EP 21191133 A EP21191133 A EP 21191133A EP 3957448 B1 EP3957448 B1 EP 3957448B1
Authority
EP
European Patent Office
Prior art keywords
circular knife
circular
knife device
materials
transport direction
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
EP21191133.4A
Other languages
German (de)
English (en)
Other versions
EP3957448A1 (fr
Inventor
Reimo Albert
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.)
Michael Hoerauf Maschinenfabrik GmbH and Co KG
Original Assignee
Michael Hoerauf 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 Michael Hoerauf Maschinenfabrik GmbH and Co KG filed Critical Michael Hoerauf Maschinenfabrik GmbH and Co KG
Publication of EP3957448A1 publication Critical patent/EP3957448A1/fr
Application granted granted Critical
Publication of EP3957448B1 publication Critical patent/EP3957448B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • 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
    • B26D1/12—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 cutting member moving about an axis
    • B26D1/14—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/141—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/12—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 cutting member moving about an axis
    • B26D1/14—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/12—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 cutting member moving about an axis
    • B26D1/14—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • B26D1/1435—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/12—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 cutting member moving about an axis
    • B26D1/14—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/157—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
    • B26D1/1575—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/12—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 cutting member moving about an axis
    • B26D1/14—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/157—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
    • B26D1/16—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable arm or the like
    • B26D1/165—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable arm or the like for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/10—Making cuts of other than simple rectilinear form
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C7/00—Manufacturing bookbinding cases or covers of books or loose-leaf binders
    • 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
    • B26D11/00—Combinations of several similar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
    • B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work
    • B26F1/3826—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work using a rotary circular cutting member

Definitions

  • the invention relates to a circular knife device for cutting planar materials, in particular cardboard and/or textile materials, especially cover boards and/or covering panels, wherein the circular knife device defines a cutting plane in which the planar materials are arranged and moved along a transport direction, with at least one circular knife and an associated circular knife axis, wherein the circular knife is rotatable about the circular knife axis, wherein the at least one circular knife is displaceable parallel to the cutting plane and perpendicular to the transport direction, whereby a cutting width of the planar materials is variably adjustable.
  • a circular knife device for cutting a flexible binding material in book cover manufacturing is known.
  • the circular knife device has two circular knives that can be moved relative to each other in a cutting plane perpendicular to a transport direction of the binding material through the circular knife device. This allows the width of the binding material to be adjusted during its passage through the circular knife device.
  • EP 2397339 B1 A device for manufacturing book covers is known, wherein cover boards are covered with a covering blank to produce the book covers.
  • two circular knives adjustable perpendicular to the transport direction of the covering blanks are provided to trim the edges of the covering blanks to the set dimension.
  • a circular knife device for cutting flat materials is known.
  • the circular knife device defines a cutting plane in which the flat materials are arranged and moved along a transport direction.
  • the circular knife device has a circular knife and an associated circular knife axis, wherein the circular knife is rotatable about the circular knife axis.
  • the circular knife is The circular blade is mounted on a gantry and can be moved parallel to the cutting plane and perpendicular to the transport direction by means of the gantry. This allows for variable adjustment of the cutting width of flat materials.
  • the circular blade is mounted on the gantry around a pivot axis perpendicular to the cutting plane. This enables cuts to be made at an angle to the transport direction.
  • a circular knife device with two circular knives is known, wherein the two circular knives are rotatable about a circular knife axis and are displaceable parallel to the cutting plane and perpendicular to a transport direction. Additionally, the circular knives are pivotally mounted about a pivot axis arranged perpendicular to the cutting plane.
  • a circular knife device comprising a circular knife rotatably mounted about a circular knife axis.
  • the circular knife is arranged on a gantry and is displaceable parallel to the cutting plane and perpendicular to the transport direction.
  • the circular knife is additionally pivotally mounted about a pivot axis arranged perpendicular to the cutting plane.
  • the circular knife is designed for cutting compressible materials, such as wadding, to produce fabric parts for manufacturing garments, sleeping bags, footwear, and the like.
  • the invention aims to improve the flexibility of a circular knife device when cutting flat materials with different dimensions.
  • the circular knife device has at least one The device comprises a circular blade and an associated circular blade axis, wherein the circular blade is rotatable about the circular blade axis.
  • the at least one circular blade is displaceable parallel to the cutting plane and perpendicular to the transport direction, thereby allowing for variable adjustment of the cutting width of the sheet materials.
  • the at least one circular blade is pivotally mounted about a pivot axis arranged substantially perpendicular to the cutting plane, enabling cuts at an angle to the transport direction and curved cuts of the sheet materials.
  • the circular blade device according to the invention can be used very flexibly. In particular, very different cuts can be produced, so that, for example, only a standard format of a sheet material needs to be fed in. This significantly simplifies inventory management.
  • the adjustment of the at least one circular blade can be automatic and coordinated with a clocked or non-clocked feed of the sheet material and also dependent on the transport speed of the sheet material. This allows for adjustments during operation, enabling the production of batch sizes as small as one.
  • the circular blade can be pivoted by an angle of ⁇ 30° relative to the transport direction, even during a cutting process.
  • the pivotable circular blade can be driven by a roller-like counter bearing or be self-driven. A counter blade that pivots in the same direction can also be assigned to the pivotable circular blade.
  • At least one circular blade is rotatably mounted on a pivoting element about the circular blade axis.
  • the pivoting element is rotatably mounted on a linear guide element about the pivot axis, and the linear guide element is arranged to be displaceable along a linear guide parallel to the cutting plane.
  • the circular blade can thus be simultaneously pivoted and displaced, enabling angled cuts, curved cuts, or even wavy cuts of the flat material.
  • the circular blade device according to the invention is therefore extremely versatile.
  • a first actuator in particular a servo motor, is provided for pivoting the pivoting element about the pivot axis. This makes automatic pivoting of the circular blade possible, even during the operation of the circular blade device.
  • a second actuator in particular a servo motor, is provided for moving the linear guide element parallel to the cutting plane.
  • This The circular knife can be automatically moved perpendicular to the transport direction, even during the operation of the circular knife device.
  • a control unit is provided to adjust the pivot angle of the circular blade around its pivot axis, depending on the transport speed and/or the position of the planar materials relative to the circular blade.
  • a pivoting movement of the circular blade around its pivot axis and a displacement movement of the circular blade perpendicular to the transport direction can be coordinated during the transport of planar materials through the circular blade device, enabling oblique and curved cuts of the planar materials.
  • the control unit and/or a computer program running on the control unit is provided and configured to adjust the position of the linear guide element relative to the linear guide, depending on the transport speed and/or the position of the planar materials relative to the circular blade.
  • At least one U-shaped or C-shaped bracket is provided, between whose legs the cutting plane is arranged and on which the at least one circular blade is arranged.
  • a very stable arrangement of the circular blade or several circular blades can be ensured by means of U-shaped or C-shaped brackets, so that highly precise cuts are possible.
  • two U-shaped or C-shaped brackets are provided, the open sides of which face each other. Flat materials can thus be transported between the arms of the brackets.
  • the brackets offer a very stable mounting option for circular blades, counter bearings, counter blades, and/or rollers for guiding and moving the flat materials.
  • two circular blades are arranged between the two brackets, with each circular blade rotatably mounted on one of the brackets.
  • Such circular blades can be used in the case of book covers for cutting a spine reinforcement or a binding edge to the book covers.
  • a third actuator is provided to adjust the distance between the two circular blades in the cutting plane relative to each other.
  • a control unit is also provided to adjust the third actuator depending on the position and/or transport speed of the planar materials. In this way, The cutting width can be adjusted even during operation of the circular knife device, enabling uninterrupted operation, even for batch sizes of one. For example, the distance between the circular knives can be adjusted before another cover board is fed into the circular knife device.
  • At least one bracket is slidably arranged on a machine frame and is displaceable relative to the machine frame perpendicular to the transport direction. This allows the circular knives, for example, to be rotatably mounted on the bracket but not displaceably. To adjust a cutting width or the width of the cover boards, the entire bracket can be moved relative to the machine frame and relative to the fed flat materials.
  • a shredder or chipper is arranged downstream of the circular blade on the machine frame of the circular blade device. In this way, waste pieces cut from a flat material can be immediately cut into small pieces and disposed of.
  • FIG. 1 shows a circular knife device 10 according to the invention in a front oblique view.
  • the circular knife device 10 can, for example, be part of a bookbinding machine (not shown), but it can also be designed as a separate unit, possibly even movable and capable of being coupled to another machine as needed.
  • the circular knife device 10 has a machine frame 12, which is designed as a square beam arranged transversely to a transport direction 14 through the circular knife device 10.
  • the machine frame 12 can also be part of a machine frame of a bookbinding machine (not shown).
  • the beam is hollow and extends from an electric motor 16, which is connected to a first, in Fig. 1
  • a drive shaft 18 extends through the entire support and is located, among other places, at the second end of the support, which is in Fig. 1 shown on the left, accessible.
  • a drive wheel 20 is mounted, which drives several circular blades and a counter bearing for a circular blade via a toothed belt and several gears. Chains, gears alone, or other transmissions can, of course, be used instead of a toothed belt.
  • another drive wheel for a toothed belt is mounted at the concealed right end of the support 12.
  • the circular knife device 10 has two C-shaped brackets 22, 24, which are arranged with their open sides facing each other on the support of the machine frame 12.
  • the two brackets 22, 24 are arranged with their parallel legs perpendicular to the transport direction 14.
  • Between the two brackets 22, 24 are arranged two circular knives 26, 28, each of which is associated with a counter knife 30, 32, see also Fig. 3
  • the circular knives 26, 28 and the counter knives 30, 32 are each aligned parallel to the transport direction 14 and are designed to cut a central reinforcement or a border for a book cover from a fed cardboard blank.
  • the circular knives 26, 28 are each arranged on a separate drive shaft, which is only partially driven by means of Fig. 1
  • the recognizable gearbox is driven by the electric motor 16.
  • the counter-blades 30, 32 are also each arranged on a separate drive shaft, which is driven by the electric motor 16.
  • the circular blades 26, 28 and the counter blades 30, 32 are each driven such that a flat cut is conveyed through the circular blade device 10 in the transport direction during cutting.
  • Driving the drive shafts by means of separate and coordinated electric motors is possible within the scope of the invention.
  • FIG. 1 Between the thighs of the in Fig. 1 On the right-hand bracket 24, another circular blade 34 is arranged, to which a further counter blade 36 is assigned.
  • the circular blade 34 is arranged on the same drive shaft as the circular blade 28, and the counter blade 36 is arranged on the same drive shaft as the counter blade 32.
  • the circular blade 34 and the counter blade 36 are intended for trimming the side edge of a fed flat blank.
  • the circular blade 34 and the counter blade 36 are both mounted on a carriage 38 that is movable transversely to the transport direction 14 and is attached to the Fig. 1
  • the upper leg of the bracket 24 is slidably mounted.
  • a spindle drive with a threaded spindle 40, driven by an actuator 42, is provided for moving the carriage 38. This allows the width of a cover board cut from a supplied flat blank to be adjusted.
  • the bracket 24 is arranged to be displaceable on the support of the machine frame 12 perpendicular to the transport direction 14.
  • the Fig. 1 lower legs of the stirrup 24 by means of a in Fig. 1
  • the linear guide is attached to the carrier.
  • a servo motor 44 which drives a threaded spindle, is provided for moving the bracket 24 relative to the carrier and thus perpendicular to the transport direction 14.
  • a further circular blade 46 is arranged on the left bracket 22.
  • a roller-like counter bearing 48 is associated with the circular blade 46.
  • the counter bearing 48 can be designed as a steel roller.
  • a counter blade can be provided instead of the counter bearing 48, which pivots in the same direction as the circular blade 46.
  • the circular blade 46 and the counter bearing 48 form a crushing blade assembly with which a supplied flat blank can be cut.
  • the counter bearing 48 is arranged on the same drive shaft as the counter blade 30 and is driven together with the counter blade 30 by the electric motor 16. Within the scope of the invention, it is possible to drive the counter bearing 48 by means of a separate electric motor.
  • the circular blade 46 is rotatably mounted about its circular blade axis on a pivoting element 50, which in turn is pivotally mounted about a pivoting axis 52 arranged perpendicular to the transport direction 14.
  • a pivoting element 50 By pivoting the circular blade 46 about the pivoting axis 50, it can be set either parallel or at an angle to the transport direction 14. This allows for cuts parallel to or at an angle to the transport direction 14. Curved cuts are also possible if the setting angle of the circular blade 46 is changed during a cutting process and a flat blank is moved in the transport direction 14.
  • An actuator 54 is provided for setting the angular position of the pivoting element 50, and thus of the circular blade 46, about the pivoting axis 52.
  • the pivoting element 50 is connected by means of a Fig.
  • FIG. 1 only partially visible linear guide perpendicular to the transport direction and thus parallel to the one in Fig. 1
  • the upper leg of the bracket 22 is slidably arranged on the bracket 22.
  • a threaded spindle 56 is provided for adjusting the pivoting element perpendicular to the transport direction 14, which is driven by an actuator 58.
  • the linear guide is arranged directly behind the threaded spindle 56 and partially concealed by it.
  • the circular blade 46 is not driven, but is carried along by the counter bearing 48 and thus driven. Within the scope of the invention, it is possible to provide a separate drive motor for the circular blade 46.
  • the circular blade 46 can be used to trim a side edge of a fed flat blank, as shown, either parallel to the transport direction 14, obliquely to the transport direction 14, or curved.
  • the bracket 22 is mounted on the support of the machine frame 12 and is displaceable perpendicular to the transport direction 14 by means of a linear guide 60.
  • a servo motor 62 which drives a threaded spindle, is responsible for displacing the bracket 22 along the linear guide 60.
  • the distance between the circular knife 26 and the circular knife 28, or between the counter knife 30 and the counter knife 32 can be adjusted.
  • the width of a back reinforcement or a cross-section cut from a supplied flat blank can be set.
  • the width of a back reinforcement or cross-section to be produced can be changed, while the width of the simultaneously cut cover boards remains unchanged. This is because the circular knives are rotatably arranged on the brackets 22, 24 and are moved together with the brackets 22, 24.
  • the circular shear device according to the invention enables numerous adjustment options when cutting a supplied flat blank using the circular blades 26, 28, 34 and 46.
  • the stable design by means of the two C-shaped brackets, on which the circular blades 26, 28, 34 and 46 and the associated counter blades 30, 32, 36 and counter bearing 48 are guided, enables highly precise cuts.
  • Fig. 2 shows two examples of how a supplied flat blank 70 can be cut with the circular knife device according to the invention.
  • a flat cut-out for example from cardboard material for the production of cover boards for a book spine, is fed in the transport direction 14 of the circular knife device 10, which is in Fig. 2 is symbolized only as a vertical dashed line.
  • the flat blank for example cardboard, is separated from a stack of cardboard, whereby cardboard pushers separate the bottommost cardboard blank and push it towards the circular knife device.
  • the cardboard pushers are in Fig. 2 not shown. However, the design and arrangement of cardboard pushers are well known to those skilled in the art.
  • the material is transported further by the circular knife device 10 by means of the circular knives, counter knives and the counter bearing 48.
  • a back reinforcement or a border 72 is cut by means of the circular knives 26, 28 and the associated counter knives 30, 32.
  • the inner side edges of the cover boards 74, 76 are cut while the border 72 is being cut.
  • the in Fig. 2 The upper side edge 78 of the lid board 74 is cut with the circular blade 34 and the counter blade 36.
  • the in Fig. 2 The lower side edge of the cover board 76 is cut with the circular blade 46 and the counter bearing 48.
  • the setting of the circular blades, counter blades and counter bearing of the circular blade device can remain unchanged or at least be partially changed in order to cut other sizes of cover boards and blanks.
  • adjustment can be made during operation after the flat blank 70 has passed through, for example also to achieve a batch size of one.
  • Fig. 2 Below is an illustration of how the flat blank is cut to form a Schrenz 72 and two cover boards 80, 82.
  • the Schrenz 72 differs from the one in Fig. 2 The dimensions shown above remain unchanged.
  • Cover board 80 is wider than cover board 74.
  • Cover board 82 has a Fig. 2 The lower convex side edge is raised. This is achieved by the circular knife 46 being...
  • the cutting process begins at an initial angle oblique to the transport direction 14. The angle is gradually reduced to zero while the circular blade 46 simultaneously moves outwards. Fig. 2 so downwards. This movement is stopped as soon as the angle of the circular blade 46 to the transport direction 14 is reduced to zero, i.e., when point 84 of the side edge is reached.
  • the circular knife device 10 can only be used to measure the area in Fig. 2
  • the lower side edge of the cover boards 76, 82 can each be designed with a different profile.
  • a circular blade pivotable about a pivot axis perpendicular to the transport direction can also be provided in the bracket 24 in order to also cut the Fig. 2
  • the upper side edge of the cover boards 74, 80 is to be provided with differently shaped side edges.
  • the described design and swiveling arrangement of the circular knife 46 can also be used when cutting reference blanks or other flat cutouts.
  • Pieces cut from the flat blank are in Fig. 2 Not shown. Such cut-off pieces can be immediately fed into a shredder or chipper, which forms part of the circular blade assembly. This allows the cut-off pieces to be disposed of immediately.
  • FIG. 3 The circular knife device 10 shows the Fig. 3 from the front, against the direction of transport 14.
  • the circular knife 46 is in the state of Fig. 3
  • the planar blank 70 is aligned parallel to the transport direction 14. It is located in the circular knife device 10 and between the circular knives 26, 28 and the counter knives 30, 32, between the circular knife 46 and the counter bearing 48, and between the circular knife 34 and the counter knife 36.
  • the circular knives 26, 28, 34 and counter knives 30, 32, 36 which are driven to rotate, as well as the The counter bearings 48, which are also driven, convey the flat blank 70 through the circular knife device 10.
  • a control unit 11 is shown only schematically and can control the actuators 42, 44, 54, 58, 62, in particular according to a transport speed determined by the rotational speed of the electric motor 16. Within the scope of the invention, the control unit 11 can also control or regulate the rotational speed of the electric motor 16.
  • FIG. 4 Figure 1 shows an enlarged section of the circular knife device 10. Visible are the pivoting element 50, on which the circular knife 46 is rotatably mounted and which itself is pivotably arranged on a bearing block 51.
  • the bearing block 51 as already described, is attached to a longitudinal guide and can be moved parallel to the upper leg of the bracket 22 by means of the threaded spindle 56.
  • a pivoting movement of the pivoting element 50 is effected by means of the actuator 54.
  • a gear segment 55 on the pivoting element 50, into which a gear 57 engages and which is connected to the shaft of the actuator 54, is only schematically indicated.
  • FIG. 5 Figure 1 shows only a part of the circular knife device 10 to illustrate the arrangement of the circular knives 26, 28, 34, and 46 and the counter bearing 48.
  • a flat blank 70 is being fed into the circular knife device, while another blank has already been cut into two cover boards 80 and 86 and a Schrenz 72.
  • the cover board has straight side edges, whereas the Fig. 5
  • the edge 88 initially begins parallel to the direction of transport 14, then curves outwards in a concave shape, changes curvature at approximately half the length of the lid board 86, and then continues in a convex curve, ending again parallel to the direction of transport 14 at the end of the lid board 86.
  • This profile of the edge 88 is achieved by aligning the circular blade 46 parallel to the direction of transport at the beginning of the cutting process, then gradually rotating it obliquely outwards, and from the middle of the cut 70 onwards, gradually reducing the angle of the circular blade 46 to the direction of transport 14 back to zero.
  • the circular blade 46 moves perpendicular to the direction of transport 14 in a coordinated manner.
  • Fig. 6 shows the part of the circular knife device of the Fig. 5 From above. Visible are the counter bearing 48 and the circular blades 46, 26, 28 and 34.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Making Paper Articles (AREA)
  • Nonmetal Cutting Devices (AREA)

Claims (12)

  1. Dispositif à lame circulaire (10) pour la découpe de matériaux plats, notamment de carton et/ou de matériaux textiles, notamment de cartons de couverture et/ou de doublures, le dispositif à lame circulaire (10) définissant un plan de coupe dans lequel les matériaux plats sont agencés et déplacés le long d'une direction de transport (14), avec au moins une lame circulaire (46) et un axe de lame circulaire associé, la lame circulaire (46) pouvant tourner autour de l'axe de lame circulaire, l'au moins une lame circulaire (46) pouvant être déplacée parallèlement au plan de coupe et perpendiculairement à la direction de transport (14), ce qui permet de régler de manière variable une largeur de découpe des matériaux plats, l'au moins une lame circulaire (46) étant montée de manière à pouvoir pivoter autour d'un axe de pivotement (52) agencé essentiellement perpendiculairement au plan de coupe, de telle sorte que des coupes situées selon un angle par rapport à la direction de transport (14) et des coupes incurvées des matériaux plats peuvent être réalisées, caractérisé en ce qu'au moins un étrier (22, 24) réalisé à la manière d'un U ou à la manière d'un C est prévu, entre les branches duquel est agencé le plan de coupe et sur lequel est agencé l'au moins une lame circulaire (46), et en ce que l'au moins un étrier (22, 24) est agencé de manière déplaçable sur un bâti de machine (12) et peut être déplacé par rapport au bâti de machine (12) perpendiculairement à la direction de transport (14).
  2. Dispositif à lame circulaire selon la revendication 1, caractérisé en ce que le lame circulaire (46) peut être pivotée d'un angle de ±30° par rapport à la direction de transport.
  3. Dispositif à lame circulaire selon la revendication 1 ou 2, caractérisé en ce que l'au moins une lame circulaire (46) est montée de manière à pouvoir tourner autour de l'axe de lame circulaire sur un élément pivotant (50), en ce que l'élément pivotant (50) est monté de manière à pouvoir tourner autour de l'axe de pivotement (52) sur un élément de guidage linéaire et en ce que l'élément de guidage linéaire est agencé de manière à pouvoir être déplacé le long d'un guide linéaire parallèlement au plan de coupe.
  4. Dispositif à lame circulaire selon la revendication 3, caractérisé en ce qu'un premier actionneur, notamment un servomoteur (54), est prévu pour faire pivoter l'élément pivotant (50) autour de l'axe de pivotement (52).
  5. Dispositif à lame circulaire selon la revendication 3 ou 4, caractérisé en ce qu'un deuxième actionneur, notamment un servomoteur (58), est prévu pour déplacer l'élément de guidage linéaire parallèlement au plan de coupe.
  6. Dispositif à lame circulaire selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une unité de commande (11) est prévue pour régler un angle de pivotement de la lame circulaire (46) autour de l'axe de pivotement (52) en fonction d'une vitesse de transport et/ou d'une position des matériaux plats par rapport à la lame circulaire (46).
  7. Dispositif à lame circulaire selon la revendication 6, caractérisé en ce que l'unité de commande (11) est prévue pour régler une position de la lame circulaire (46) par rapport au guide linéaire en fonction d'une vitesse de transport et/ou d'une position des matériaux plats par rapport à la lame circulaire (46).
  8. Dispositif à lame circulaire selon la revendication 1, caractérisé en ce qu'il est prévu deux étriers (22, 24) réalisés à la manière d'un U ou à la manière d'un C, dont les côtés ouverts sont tournés l'un vers l'autre.
  9. Dispositif à lame circulaire selon la revendication 8, caractérisé en ce que deux lames circulaires (26, 28) sont agencées entre les deux étriers (22, 24), une lame circulaire (26, 28) étant respectivement montée de manière rotative sur l'un des étriers (22, 24).
  10. Dispositif à lame circulaire selon la revendication 9, caractérisé en ce qu'au moins un troisième actionneur (44, 62) est prévu pour régler une distance des deux lames circulaires (26, 28) l'une par rapport à l'autre dans le plan de coupe.
  11. Dispositif à lame circulaire selon la revendication 10, caractérisé en ce qu'une unité de commande (11) est prévue pour régler le troisième actionneur (44, 62) en fonction d'une position et/ou d'une vitesse de transport des matériaux plats.
  12. Dispositif à lame circulaire selon au moins l'une quelconque des revendications précédentes, caractérisé en ce qu'un déchiqueteur ou un broyeur est agencé en aval des lames circulaires sur le bâti de machine, de telle sorte que les déchets coupés d'un matériau plat peuvent être immédiatement découpés en petits morceaux et éliminés.
EP21191133.4A 2020-08-21 2021-08-12 Dispositif couteau circulaire Active EP3957448B1 (fr)

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DE202020104847.3U DE202020104847U1 (de) 2020-08-21 2020-08-21 Kreismesservorrichtung

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KR102483152B1 (ko) * 2020-12-29 2023-01-04 씨제이제일제당 (주) 식용 제품을 위한 절단장치 및 절단방법
CN112847650A (zh) * 2020-12-31 2021-05-28 深圳市锦上嘉科技有限公司 一种组合式调音纸模切工艺及其模切系统
DE102023110896A1 (de) * 2023-04-27 2024-10-31 Multivac Sepp Haggenmüller Se & Co. Kg Vorrichtung zum Zuschneiden von Verpackungsmaterial

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DE202020104847U1 (de) 2020-11-04
US20220055241A1 (en) 2022-02-24

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