EP2974835A2 - Systeme de coupe longitudinale pour materiaux en forme de bande et procede de fonctionnement d'un systeme de coupe longitudinale - Google Patents

Systeme de coupe longitudinale pour materiaux en forme de bande et procede de fonctionnement d'un systeme de coupe longitudinale Download PDF

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Publication number
EP2974835A2
EP2974835A2 EP15177293.6A EP15177293A EP2974835A2 EP 2974835 A2 EP2974835 A2 EP 2974835A2 EP 15177293 A EP15177293 A EP 15177293A EP 2974835 A2 EP2974835 A2 EP 2974835A2
Authority
EP
European Patent Office
Prior art keywords
knife
holding device
cutting system
holder
knife holder
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
EP15177293.6A
Other languages
German (de)
English (en)
Other versions
EP2974835B1 (fr
EP2974835A3 (fr
Inventor
Josef Bäumer
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.)
Baumer Josef
Original Assignee
Baumer Josef
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 Baumer Josef filed Critical Baumer Josef
Publication of EP2974835A2 publication Critical patent/EP2974835A2/fr
Publication of EP2974835A3 publication Critical patent/EP2974835A3/fr
Application granted granted Critical
Publication of EP2974835B1 publication Critical patent/EP2974835B1/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
    • 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
    • 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
    • B26D7/08—Means for treating work or cutting member to facilitate 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
    • 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
    • B26D7/2614—Means for mounting 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
    • 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
    • B26D7/2614—Means for mounting the cutting member
    • B26D7/2621—Means for mounting the cutting member for circular cutters
    • 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
    • B26D1/22—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 a movable member, e.g. a roller
    • B26D1/225—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 a movable member, e.g. a roller 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
    • 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
    • B26D2007/2657—Auxiliary carriages for moving the tool holders
    • 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
    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
    • 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

Definitions

  • the invention relates to a longitudinal cutting system for sheet-like materials according to the preamble of claim 1. Furthermore, the invention relates to a method for operating a longitudinal cutting system according to the preamble of claim 15.
  • a longitudinal cutting system is used for the longitudinal division of web-shaped materials. These sheet-like materials may be, for example, paper, foil, composites and the like. By a longitudinal division, the web-shaped material is divided into several narrower strips or bands, in particular by cutting.
  • scissors or pinch-cut methods can be used.
  • a shear cut two overlapping blades cut through the material. A squish is usually performed by rolling a knife on a roller so that the material in between is displaced and severed.
  • the knives are circular knives which are rotatably mounted on a central axis.
  • the web-shaped material is usually supplied on rollers and unrolled for cutting in the machine for longitudinal section. Accordingly, it passes through a cutting region between one or more knives arranged at the top, so-called upper knives, on the one hand and knives arranged below the web, so-called lower knives, or else other counter-bearings for the knives on the other hand.
  • the lower blades can be replaced by, for example, a smooth roller, for example for crimping.
  • a vertical reversed arrangement is also possible in principle.
  • the longitudinal cutting system is characterized in that a common holding device for receiving and releasably securing a plurality of knife holders is provided.
  • a common holding device for receiving and releasably securing a plurality of knife holders is provided.
  • all introduced into the fixtures knife are adjustable so in particular a variety of knives. This advantageously leads to the fact that not for each knife a separate holder must be provided. The actual holder is done by the holding device.
  • a common holding device for several or all knives or their knife holder a common adjustment of the knife is possible.
  • all knives or knife holder are fastened together releasably by the holding device.
  • the holding device By no fixed arrangement of the knife holder is provided in the holding device, can easily a conversion or Reconfiguration or a reconstruction of the slitting system are made.
  • the number of blades and / or their distance from each other can be varied within wide limits.
  • All knife holders in the holding device are preferably at least substantially freely positionable and / or attachable. This ensures that virtually any strip widths or longitudinal divisions of the web-shaped material can be achieved. A fixation at special, predefined positions is not required.
  • the holding device has in particular two parallel holding plates.
  • the at least one knife holder or the or all knife holders are preferably fixed between the holding plates, in particular braced. Opposing side surfaces of the knife holder are preferably mounted on each one of the two holding plates. This can be achieved for example by inserting the knife holder in a gap in or between the holding plates.
  • the holding device is arranged in particular transversely to the longitudinal extent of the web-shaped material, so the knife holder can arrange for cutting a sheet material and in particular fix.
  • the holding plates are preferably aligned at least substantially perpendicular to the surface of the sheet material.
  • the knives or knife holders are in particular at least substantially perpendicular to the web-shaped material.
  • the gap between the two holding plates is also preferably aligned transversely to the longitudinal extent of the web-shaped material and preferably extends at least over the entire width of the web-shaped material.
  • the knife holder can be arranged with the knives in virtually any position relative to the sheet material.
  • the holding device preferably has at least one holding element for releasably fixing the position of the at least one knife holder. It may in particular be a pneumatic and / or hydraulic and / or magnetic holding element.
  • the at least one retaining element is preferably associated with at least one of the retaining plates.
  • at least one holding element is designed as an expansion element and / or magnetic element.
  • an expansion element for example, a with a pressure medium, such as a gas or a liquid, can be acted upon hose-like structure called. By appropriate pressurization, the element expands or is less compressible than in the unloaded state.
  • a magnetic system may be provided.
  • a magnetic element can be represented for example by an electromagnet, which is used to activate and fix the knife holder with electricity is charged.
  • at least one permanent magnet can also be used as the magnetic element. This provides a magnetic field for fixing without electric current.
  • a temporary weakening of the magnetic field by a pole arranged opposite electromagnet a release of the fixation can be achieved.
  • the magnetic elements or magnetic plates may be formed, for example, with Leksspol- and / or Pendelpolannon.
  • the or the holding elements are arranged for this purpose in particular on the walls of a gap in the holding device. This is done in particular such that the knife holders are clamped between the walls or held by magnetic forces.
  • the knife holders have in particular corresponding magnetic or magnetizable bearing elements.
  • a knife holder preferably has at least one bearing for the associated knife.
  • the knife holder includes a particular suitability for fixing in the holding device, in particular by means of bearing elements.
  • a device for gripping or handling the knife holder may be provided, for example a projection and / or a receptacle. This allows use in the longitudinal cutting system.
  • the knife holders are in particular at least substantially identical, in order to allow easy replacement against each other.
  • Each of the knife holders has in particular an identification means or a data carrier.
  • the identification means is used in particular for the identification of the at least one associated knife.
  • the identification means may preferably be an electronic chip, preferably a radio chip, for example an RFID chip (Radio Frequency Identification Device).
  • the identification means or the data carrier preferably contains next to identification data, such as a unique number, further data specific to the knife. This may in particular be measurement data, application data, damage and the like.
  • the at least one knife holder has at least one spring means for pressing the knife during the cutting process.
  • the spring means is adjustable to vary, for example, the contact pressure.
  • the spring means can also be easily interchangeable, so as to meet defects or different application needs.
  • the force direction of the spring can be aligned in particular perpendicular to the material plane. But it can also act laterally, preferably parallel to the material plane, for example, for lateral pressure of the knife to a lower blade.
  • a force measuring device for determining the pressing force of the blades.
  • a force measuring device is operated separately by supplying a knife or a knife holder with a knife.
  • a receiving plate is provided for force measurement.
  • the knife is pressed onto the blade so as to achieve the pressing force as a function of the distance traveled in absolute values.
  • a measuring device for, in particular, optical measurement of the knives.
  • the measuring device in particular the cutting edge of the knife is measured, in particular during a corresponding rotation.
  • a light source preferably a laser, in particular to enable illumination and optical processing of the images, in particular by means of a camera or another suitable detector.
  • a handling device for the at least one knife is provided in particular. This is preferably used for insertion and / or removal of the knife holder in or out of the holding device.
  • the handling device is preferably designed as a computer-controlled and / or robotic gripper in particular. Thus, preferably an automated replacement or placement is possible, preferably without manual intervention.
  • the gripper is designed as gripping tongs.
  • the gripper has at least two gripping arms.
  • a secure gripping the knife holder can be ensured.
  • a device such as in particular a knife magazine, for Provision and storage of knife holders may be provided outside of the holding device.
  • the handling device and the knife holder preferably have corresponding fits for play-free connection or for receiving a fit in the other. Further preferably, receiving surfaces are provided for this purpose, which in particular run obliquely. This allows a safe and backlash-free connection of the handling device with the knife holder. In particular, triangular or prismatic surfaces or bodies may be provided to allow a backlash-free fit.
  • the positioning of the knife holder in the holding device is particularly dependent on the intended use and / or the type of knife. Further, the positioning is dependent on measured or determined measured values, in particular knife parameters, error and / or pressure forces of the knife. This allows a targeted and application-related positioning of the knife in the fixture. Depending on the condition of the knife, the position in the holding device and thus in the cutting system can be adjusted accordingly. This is of great interest in, for example, already partially worn knives or the like. For example, the diameter of different circular blades may be different, especially reduced by wear.
  • the device has in particular a device for removing chips.
  • a blowing device for supplying air, in particular compressed air may be provided.
  • the blowing device is particularly suitable for removing chips by air from a range.
  • the blowing device is provided in the region of the holding device for positioning the knife holder. This reliably prevents chips and the like from remaining in the region of the holding device or the fits.
  • the knife holder can be positioned with the knives in the corresponding holding device in order to achieve a cutting of a web-shaped material.
  • the various components of the slitting system are used as part of the process for setting or to ensure the operation.
  • the automated positioning of the holding elements in the holder device also allows an exact and reproducible adjustment of the positions.
  • Fig. 1 an inventive longitudinal cutting system 10 is shown.
  • the longitudinal cutting system 10 serves to divide a web-shaped material 11 into narrower strips 12, that is to say to cut longitudinally.
  • the web-shaped material 11 is guided by means of several shafts or rollers 13, 14, 15 horizontally through a cutting region 16 of the longitudinal cutting system 10 therethrough.
  • shafts 13, 14, 15 and / or rollers 13, 14, 15 may be provided.
  • the rollers 13, 14, 15 are mounted in a frame 17.
  • This frame 17 has two side parts 18 and 19, which are connected by means of two bottom-side struts 20.
  • On the floor stand feet 21 are provided, which may be provided with damping elements.
  • the actual cutting device 22 is arranged above the rollers 13, 14, 15, the actual cutting device 22 is arranged.
  • Each knife holder 24 has at least one knife 25. These knives 25 are used to cut the sheet material 11. It may be different types of knives, depending on the purpose and material.
  • the blades 25 When squeezing the blades 25 work on a cylindrical roller 14 as an abutment, wherein the intermediate material is crushed by the contact pressure. In shear cutting, on the other hand, the knives 25 act as upper knives on the side of corresponding lower knives in the region of a shaft 14. As a result, a cutting of the material 11 is made possible.
  • the lower blade 83 not shown in detail here, are usually attached to the shaft 14 as a ring cutter. They are held there by expansion elements 84. In order to enable the lower knife 83 to be placed on the shaft 14, the shaft 14 is provided with an adjustable mounting 59.
  • Fig. 3 For example, two alternative guideways are given for the sheet material 11, 11a.
  • the path above all three rollers 13, 14, 15 is denoted by 11.
  • Other materials may require a different guide such as that shown in 11a, such as heavy or brittle media.
  • the holding device 23 extends at least substantially over the entire width of the frame 17 of the longitudinal cutting system 10.
  • the holding device 23 is arranged at the upper portion of the frame 17 along a plurality of axes adjustable.
  • adjusting devices 26 and 27 are provided on both sides. An adjustment is in the present case in the vertical direction on the one hand, ie perpendicular to the plane of the sheet material 11, and transverse thereto, ie perpendicular to the longitudinal extent in the horizontal direction on the other hand possible.
  • a height adjustment with vertical drive 28 is provided.
  • This height adjustment can be designed both motor, especially electric motor, as well as pneumatic and / or hydraulic.
  • the height adjustment serves to raise or lower the entire cutting device 22 relative to the frame 17.
  • the cutting device 22 can be moved from the working position in contact with the sheet material 11 in a set-up position remote therefrom.
  • the set-up position or setting position is usually provided above the working position of the cutting device 22.
  • at least one pneumatic, electromotive or similar drive can be used. In the present case, two pneumatic drives are provided as vertical drives 28.
  • a longitudinal drive 29 is provided for horizontal displacement or longitudinal adjustment of the holding device 23.
  • it is designed as a pneumatic drive. It serves to move the holding device 23 in the horizontal direction relative to the sheet-like material 11 and thus to position the cuts to be applied in the material 11 correctly.
  • a roller drive 30 is provided. This can preferably be designed as an electric motor, but also as a pneumatic drive. It serves to drive the roller 14 with a speed suitable for advancing the web-shaped material 11.
  • the holding device 23 has a recess in the form of a gap 31.
  • This gap 31 extends between the holding plates 32 and 33. In the longitudinal direction of the sheet material 11 and between the two-sided end plates 34 and 34 at the end portions of the holding device 23 in the transverse direction to the sheet-like material 11. In this gap 31, the knife holder 24 are accurately used.
  • the knife holder 24 are clamped for holding between the two surfaces 32 and 33 of the holding device 23 hydraulically or pneumatically. As in the unloaded condition but possibly only an insufficient holding force for the knife holder 24 prevails in the vertical direction, they can slip through the gap 31 down. During assembly therefore a fuse is required. Namely, the blade holders 24 are inserted into the gap 31 from above. Thus, the knife holder 24, for example, even in case of failure of the system can not slip down through the gap 31, retaining pins 35 are provided on both sides at the upper end of the knife holder 24. With these retaining pins 35, the knife holder 24 is supported on the upper edges of the walls or holding plates 32 and 33 of the holding device 23.
  • the knife holder 24 itself have in the lower area, for example in the Fig. 14 the actual knife 25, which is designed as a rotatably mounted ring knife.
  • the circular cutting edge 36 of the knife 25 is circumferentially connected to a knife carrier 37 in the case of the doctor blade.
  • This blade carrier 37 in turn runs on a central axis 38.
  • a rolling bearing, plain bearings or the like may be provided.
  • the cutting edge 36 protrudes downwards in order to be able to split the web-shaped material 11 arranged underneath in use.
  • a spiral spring 58 is arranged circumferentially between the cutting edge 36 and the blade carrier 37.
  • the coil spring 58 is formed as a ring-shaped closed spring. This serves to generate an axial or lateral pressure of the knife 25 to the respective lower blade in the shear cutting method.
  • the knife holder 24 also has a receptacle 39 for handling the knife holder 24 in the upper area.
  • This receptacle 39 includes a central connecting body 40, which has two recesses 41 for engaging behind. Laterally adjacent to the connecting body 40, two prism-shaped bearing bodies 42 are provided. These serve for the play-free connection of the knife holder 24 with a corresponding counterpart.
  • a data carrier 43 as an identification means for the knife holder 24 is embedded in the housing.
  • it may be an electronic data carrier 43, specifically an RFID chip.
  • the RFID chip as a data carrier 43 can be read by radio.
  • identification data for the knife 25 or the knife holder 24 it additionally carries information about performance data, damage, service life, setting variables and similar relevant data for the specific associated knife 25. Alternatively, the data can also be recorded in a separate database.
  • the knife 25 shown here or the knife holder 24 is provided for clamping between corresponding, provided in a corresponding holding device expansion elements 54.
  • the lateral surfaces 45 of the knife holder 24 are provided accordingly.
  • the alignment of the knife 25 can be varied to the sheet material 11 within certain limits. This serves, in particular, to provide a slight inclination relative to the longitudinal axis of the material 11 during the shear cut.
  • expansion elements 54 are provided at least on one side or in the holding plate 32.
  • bearing elements 55 are arranged, for example, provided from an elastic, anti-slip material.
  • expansion elements 54 can also be provided on both sides.
  • Expansion elements 54 have a cavity in the interior, in which a fluid medium, such as in particular a gas, such as compressed air can be introduced. As a result, the expansion element 54 is expanded and presses accordingly on one of the clamping surfaces 45 of the knife holder 24. Thus, corresponding clamping forces between the contact element 55 and the expansion element 54 are exercised.
  • FIGS. 17, 18 and 19 is also a shearing blade described, which is substantially identical to those of FIGS. 14, 15 and 16 is trained. Only the fixation of the knife holder 24 in the holding device 23 takes place in this case instead of a clamping by means of expansion elements 54 by magnetic means.
  • the knife holder 24 laterally at least two magnetic, in particular permanent magnetic or ferromagnetic magnetic bearing elements 46, 47. Both bearing elements 46, 47 are rotatably mounted by means of bolts 48 at the upper and lower end region in corresponding projections 49 of the knife holder 24. In this case, a rotation can take place only in a limited angular range.
  • bearing element 46 is accordingly only rotatably mounted.
  • the bearing element 47 arranged on the right is, in addition to the rotatability, still displaceably mounted to a small extent in the plane of the drawing. It can therefore be moved by a few millimeters linearly in the direction of the knife holder 24 or away.
  • the bearings in the projections 49 are formed as slots 50. This is necessary to ensure appropriate distances for insertion and removal or for tilting in a magnetic storage. This also ensures a bridging of the tolerance range.
  • the holding device 23 has a plurality of magnetic plates 56 and 57 respectively to the holding plates 32 and 33 for fixing the knife holder 24.
  • the knife holder 24 can be inserted into the gap 31 and are magnetically fixed there.
  • the magnetic plates 56, 57 and the magnetic bearing elements 46, 47 attract and contact themselves accordingly due to magnetic forces.
  • the magnetic plates 56, 57 may be formed, for example, with L Lucasspol- and / or pendulum pole pitch. This ensures a stable mount.
  • the existing permanent magnetic field must be reduced.
  • 57 electromagnets are provided in the region of the magnetic plates 56, which cause a weakening of the existing magnetic field when activated by current flow. This allows removal of knife holders 24.
  • the electromagnets and the magnetic plates 56, 57 may also be divided into several individual elements.
  • FIGS. 20, 21 and 22 another type of knife 25 is shown. It is a so-called crushing knife.
  • a crush meter is provided for dicing by pressurizing the material 11.
  • the blade 51 of this knife is formed in the present case of one piece with integrated cutting edge 36.
  • the blade 51 is formed in this case as a circular blade or circular blade 44 and accordingly mounted rotatably on a central axis 38.
  • corresponding bearings for example by roller bearings or sliding bearings can be provided.
  • the actual blade 36 is formed with this blade type with a much blunt tip to allow a division of the material by pressing.
  • a spring element 52 for supporting the axle 38 is provided.
  • the spring element 52 is designed as a rod-shaped or leaf-shaped spring, which is mounted for this purpose at two bearing points 53.
  • the axis 38 is arranged vertically movable in a slot 54. Accordingly, the spring element 52 can spring in, so as to allow the knife 25 to spring back.
  • handling device 60 For handling the knife holder 24 is an example in Fig. 10 shown in detail handling device 60 is provided.
  • This handling device 60 has a multi-axis adjustment device 61, which is suspended on a vertical stand 62.
  • a gripper 63 For handling the knife holder 24, a gripper 63 is provided.
  • This gripper 63 has two cooperating gun arms 64. These serve to grasp the corresponding projection or connecting body 40 of the knife holder 24.
  • inwardly directed thickenings 65 are provided at the end region of the gripper arms 64, which correspond to the recesses 41 on the connecting body 40 of the knife holder 24. By squeezing the gripper arms 64, the knife holder 24 can be gripped securely.
  • the gripper 63 has two lateral guide elements 65. These are designed to engage with the prismatic corresponding guide elements 42 of the knife holder 24 in engagement. This is the case when the gripper 63 with the gripping arms 64 engages the connecting body 40.
  • the guide elements 42 run then into corresponding prism-shaped recesses of the guide elements 65 inside. Thus, they provide a backlash-free fit of the knife holder 24 with the gripper 63.
  • a rail 66 allows a vertical displacement of the gripper 63.
  • a corresponding motor drive 67 is provided. The vertical displacement is performed by means of a ball screw 68.
  • a rotation of the gripper 63 about a vertical axis is made possible by a further drive 69. This ensures a possibility of rotation about the vertical axis.
  • a rotation of the knife holder 24 can be adjusted or eliminated by small angles, in particular to allow or eliminate entanglement of the knife 25.
  • Opening and closing of the gripper 63 with the gripping arms 64 is performed by a further drive by a pneumatic cylinder 70.
  • a pneumatic cylinder 70 This is arranged above the gripper 63.
  • the pneumatic cylinder 70 drive a gripper wedge 73, which enters between two legs of the gripping arms 64 to close the same against the spring force of two spring elements 74.
  • the spring elements 74 open the gripping arms 64 in the unloaded state.
  • the entire handling device 60 is mounted along the longitudinal extension of the holding device 23 in rails 72 and slidable via a play-free ball screw 73.
  • a motor drive 74 is provided for this purpose.
  • a force transducer 80 is arranged as part of a surveying station.
  • the force transducer 80 serves to set up a knife 25 with the knife holder 24 by the handling device 60 and to measure the pressing force as a function of the vertical position of the knife 25. Because of this, the exact positioning of the knife holder 24 in the vertical direction in the holding device 23 can then be determined.
  • the load cell 80 points to it a measuring surface 81, to which the respective knife 25 can be pressed. By performing a corresponding measurement for each knife holder 24, all knife holders 24 can be installed in such a way that the same pressing force prevails or the same knife position is provided in the vertical direction at the location of the sheet material 11 to be cut.
  • Corresponding data can be stored at least temporarily, as a rule permanently in the data carrier 43.
  • a template position 82 is provided in the form of a holder for the knife holder 24.
  • a magazine or a transport device for knife holder 24 may also be provided in this area in order to be able to carry out a fully automatic replacement of knife holders 24.
  • the control of the longitudinal cutting system 10 is effected by an electronic control, in particular a computer control.
  • the system 10 can be operated at least almost fully automatically, since all required data can be determined or already have to be available for operation anyway. Manual intervention is kept to a minimum.
  • all adjusting devices are equipped with absolute encoders. Thus, in each case corresponding absolute measured values with respect to the longitudinal cutting system 10 can be determined.
  • the holding elements can be adjusted such that a slight holding force already adequately fixes the knife holders 24 during the installation of further knives 25 or the setting of the device. Then, with a fixation until insertion and positioning all blade holders 24 are reset. Only after completion of the adjustment, the position of the knife 25 is fixed by activating the expansive or magnetic clamping function holding device 23.
  • the gripper 63 accordingly removes the desired knives individually or reconfigures the system by converting individual knives or adjusting the cutting parameters.

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)
EP15177293.6A 2014-07-17 2015-07-17 Systeme de coupe longitudinale pour materiaux en forme de bande et procede de fonctionnement du systeme de coupe longitudinale Active EP2974835B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014110080.8A DE102014110080A1 (de) 2014-07-17 2014-07-17 Längsschneidsystem für bahnförmige Materialien und Verfahren zum Betrieb eines Längsschneidsystems

Publications (3)

Publication Number Publication Date
EP2974835A2 true EP2974835A2 (fr) 2016-01-20
EP2974835A3 EP2974835A3 (fr) 2016-06-22
EP2974835B1 EP2974835B1 (fr) 2018-09-12

Family

ID=53716373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15177293.6A Active EP2974835B1 (fr) 2014-07-17 2015-07-17 Systeme de coupe longitudinale pour materiaux en forme de bande et procede de fonctionnement du systeme de coupe longitudinale

Country Status (2)

Country Link
EP (1) EP2974835B1 (fr)
DE (1) DE102014110080A1 (fr)

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CN111360910A (zh) * 2020-03-20 2020-07-03 廖曦 一种医疗口罩生产熔喷布分切机
CN112936401A (zh) * 2021-01-25 2021-06-11 元源新材料有限公司 一种可调节切割宽度的玻纤切条设备

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CN106625868B (zh) * 2017-02-17 2019-03-08 江苏华哲标签有限公司 一种标签通孔自动除废料装置

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CN111360910A (zh) * 2020-03-20 2020-07-03 廖曦 一种医疗口罩生产熔喷布分切机
CN111360910B (zh) * 2020-03-20 2021-08-10 黑龙江康禄新材料科技有限公司 一种医疗口罩生产熔喷布分切机
CN112936401A (zh) * 2021-01-25 2021-06-11 元源新材料有限公司 一种可调节切割宽度的玻纤切条设备
CN112936401B (zh) * 2021-01-25 2023-04-07 元源新材料有限公司 一种可调节切割宽度的玻纤切条设备

Also Published As

Publication number Publication date
EP2974835B1 (fr) 2018-09-12
EP2974835A3 (fr) 2016-06-22
DE102014110080A1 (de) 2016-01-21

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