EP0418589A1 - Dispositif pour le broyage de fil - Google Patents

Dispositif pour le broyage de fil Download PDF

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Publication number
EP0418589A1
EP0418589A1 EP90116233A EP90116233A EP0418589A1 EP 0418589 A1 EP0418589 A1 EP 0418589A1 EP 90116233 A EP90116233 A EP 90116233A EP 90116233 A EP90116233 A EP 90116233A EP 0418589 A1 EP0418589 A1 EP 0418589A1
Authority
EP
European Patent Office
Prior art keywords
wire
knife
cutting disc
deflection
knife carrier
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
EP90116233A
Other languages
German (de)
English (en)
Other versions
EP0418589B1 (fr
Inventor
Hans-Jürgen Gerlach
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.)
Berkenhoff and Co KG
Original Assignee
Berkenhoff 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 Berkenhoff and Co KG filed Critical Berkenhoff and Co KG
Priority to AT90116233T priority Critical patent/ATE83181T1/de
Publication of EP0418589A1 publication Critical patent/EP0418589A1/fr
Application granted granted Critical
Publication of EP0418589B1 publication Critical patent/EP0418589B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • 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
    • B26D1/25—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 non-circular cutting member
    • B26D1/26—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 non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B26D1/28—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 non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/949—Continuous or wound supply
    • Y10S83/95—Strandlike
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/222—With receptacle or support for cut product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/541—Actuation of tool controlled in response to work-sensing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6579—With means to press work to work-carrier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8789—With simple revolving motion only

Definitions

  • the invention relates to a device for wire comminution with at least one rotating knife mounted on a rotating knife carrier and a counter tool.
  • a device for wire comminution is known from EP-B1-0 210 482.
  • the device is used in particular to cut the wire material emerging from a spark erosion machine to specific lengths, in order to be able to collect the wire, which is a waste product, and to further process it.
  • the known device comprises a cutting tool provided with knives arranged on its circumference, which can be brought into engagement against an annular counter tool.
  • the wire is passed between the two tools and squeezed by the action of the cutting tools and the counter tool. This leads to deformation of the wire and tearing off of the respective wire end pieces.
  • DE-PS 36 31 888 shows a device for cutting wire, in which a first knife body is arranged in a fixed manner, while a counter knife is swung back and forth past a passage opening of the knife body.
  • the wire areas to be separated are deformed due to the action of the counter knife, so that they cannot be collected in the densest packing in a receptacle.
  • two cutting directions are specified, which lead to different wire throwing paths, so that the cut wire remnants have to be collected by a very large collecting vessel.
  • the walking speed is limited due to the mass of the counter knife, so that this device can only be used with relatively slow eroding machines.
  • Another disadvantage is that the wire can only be threaded by hand and is relatively difficult since the wire has to be deflected in the device.
  • Another disadvantage is the relatively large wear on the cutting edges of the counter knife, which cannot be readjusted or reground.
  • the invention has for its object to provide a device of the type mentioned, which with a simple structure and a simple mode of operation enables reliable cutting of a wire, in which the wire sections can be collected in the densest packing or position and which are at the most varied wire conveying speeds is customizable.
  • the object is achieved in that the counter tool is designed in the form of a cutting disc rotating about a vertical first axis and provided with a central recess, and in that the knife carrier is mounted in a rotating manner about a second axis parallel to the first axis and the knife is guided along the cutting disc becomes.
  • the device according to the invention is distinguished by a number of considerable advantages. Since the counter tool is designed in the form of a rotating cutting disc, it is always ensured on the one hand that, due to the centrifugal force, the wire is placed against the outer edge of the central recess, so that a cleaner cut is made when the knife acts. Another advantage of the cutting disc is that it has a cutting edge on its entire circumference, ie the entire edge of the central recess, so that overall the wear, due to the large length of the cutting edge, can be reduced, so that a higher one Tool life of the cutting disc results. Since the knife holder continues to guide the knife along the cutting disc, this is a cleaner cut with a straight, exact cut possible edge, squeezing or bending of the cutting area of the wire can be completely avoided.
  • the device according to the invention is thus suitable for use in a wire eroding machine, since it is possible to divide the wire emerging from the machine, used for the cutting process, into short wire sections and to store it in the tightest packing, so that overall only a very small volume of one Storage container is required.
  • Another advantage is that the exit direction of the wire ends is arranged vertically, so that they can be easily introduced into a collecting container or a recording device. The risk of individual wire sections leaving the device in an uncontrolled manner and being dropped outside the recording device is thus completely eliminated.
  • the cutting disk is preceded by a deflection device for deflecting a wire from a horizontal into the vertical conveying direction.
  • a deflection device for deflecting a wire from a horizontal into the vertical conveying direction.
  • the deflection device is designed in the form of a belt conveyor, since the belt conveyor is simple in structure and is easy to use and, on the other hand, ensures secure guidance of the wire. Furthermore, the wire can be inserted in a particularly simple manner.
  • a funnel guide is arranged in front of the deflection device.
  • the funnel guide can preferably be provided with a wire sensor in order to ensure that the device for wire comminution is only put into operation when an eroding wire passes through it.
  • the device according to the invention is particularly advantageously suitable for simple control and adaptation to the respective wire conveying speed of the eroding machine. It is thus possible according to the invention to control a first drive device for the deflection device and a second drive device for the knife body and the cutting disc as a function of the signals from the wire sensor or as a function of a tensile force determined by the deflection device.
  • the device according to the invention can thus be adapted very variably to the respective operating conditions. With regard to traction control, it is possible, for example, to set the operating speed of the device via current control of the drive motors.
  • the wire sensor which is connected upstream of the deflection device, can be designed, for example, as a proximity sensor in order to determine the approach of a wire element, so that the device according to the invention in the event of a wire break or the like. can be switched off. Furthermore, the device is switched on automatically when a wire is to be inserted.
  • the knife holder is provided with at least one arm, at the end region of which the knife is arranged. It is thus avoided that the cut wire pieces are thrown against central areas of the knife carrier and get caught on it.
  • the knife carrier comprises four arms arranged in a cross shape, each with a knife, so that the overall speed of rotation of the knife carrier can be reduced, since several arms can be brought into engagement with the cutting disk per revolution.
  • a guide element which can rotate with the cutting disk and which can have a funnel-shaped recess is arranged between the deflection device and the cutting disk.
  • the device Since the wire material discharged from the eroding machine is usually not stress-free, it is particularly advantageous if the device is designed to be electrically insulated from the ground, so that eroding processes on the cutting tools can be avoided.
  • the wire guide parts of the device are advantageously electrically insulated.
  • the device comprises a housing 16 or a carrier on which a knife carrier 1 is rotatably mounted on the underside, to which a plurality of knives 2 are fastened.
  • the knife carrier 1 comprises a total of four knives 2, which are supported at the ends of four cross-shaped arms 12.
  • the knife carrier 1 is attached to the housing 16 so as to be rotatable about a second vertical axis 6. Also on the underside or the lower region of the housing 16, a cutting disk 3 provided with a central recess 5 is rotatably mounted, the cutting disk 3 being rotatable or rotatable about a first vertical axis 4.
  • the two axes 4 and 6 are arranged parallel to one another and at a distance, as can be seen, for example, from FIG. 5.
  • the knife carrier 1 rotates, the knife 2 thus sweeps over the underside of the cutting disk 3, so that a wire material passing through the central recess 5 is cut off. Since the central recess 5 is freely accessible from the underside, the divided wire ends can easily be moved to un ten fall out to be caught in a recording device 14 provided with a vibrator 15 (see FIG. 1).
  • the parallel arrangement of the two vertical axes 4, 6 can be seen in particular from FIG. 3, it also being apparent from the illustration according to FIG. 3 that the cutting disk 3 and the knife carrier 1 are coupled to one another in terms of movement by means of a drive belt 17 or a suitable drive device are.
  • the knife holder 1 is driven by a second drive device 11 which is connected to the knife holder 1 by a shaft 18.
  • the cutting disc 3 has a spherical or convex shape at its lower region, which facilitates sliding of the knife 2.
  • the knives 2 can be arranged on the knife carrier 1 in an adjustable or adjustable manner in order to be able to compensate for wear.
  • the cutting disc 3 is integrally connected to a guide element 13, which is provided with a funnel-shaped recess, which, as shown in FIG. 2, facilitates insertion of the wire material.
  • the device according to the invention further comprises a deflection device 7 which comprises a drive roller 19 which can be driven via a first drive device 10. 3 that the drive roller 19 is connected for this purpose to a shaft 22, which is in a suitable manner with the drive device 10 in operative connection. Furthermore, one Pressure roller 20 and a roller 21 are provided. The roller 21 and the drive roller 19 are wrapped in a band 23 which is guided on the outer circumference of the pressure roller 20 and can be tensioned by means of a tension roller 24.
  • a funnel guide 8 is provided in the area between the roller 21 and the pressure roller, through which the wire material can be inserted between the pressure roller 20 and the belt 23.
  • a wire sensor 9 is also provided, which is held on the funnel guide 8 by means of a clamp 25. By means of the wire sensor 9 it is possible to determine whether the funnel guide 8 is traversed by a wire.
  • the deflection device 7 serves to deflect the horizontally conveyed wire material in a vertical direction.
  • the knife speed it is possible to set the knife speed so that wire pieces with a constant wire length are always cut.
  • the adaptation can be made to the tensile force or the like determined by the deflection device. be coupled so that there is always a corresponding assignment.
  • the device is switched on and off either using the wire sensor 9 or using the tension of the erosion wire determined by the deflection device 7.
  • the device according to the invention thus switches off automatically when the erosion machine is at a standstill and is automatically put into operation when it is switched on.
  • the wire sensor 9 is used in particular to detect a wire break, since the sensor is designed as a proximity sensor, which detects that the wire abuts the wall of the funnel of the funnel guide 8.
  • the device according to the invention is designed so that no wire remnants can remain in the device, especially not in the event of a wire break.
  • Another advantage of the device is that the wire lengths can be set and maintained independently of the throughput speed of the eroding machine, since the rotational speed of the knife carrier 1 and the cutting disc 3 are independent of the conveying speed of the deflection device 7.
  • the central recess 5 and the cutting edge realized on this ensures that the cutting off of the wire pieces is always carried out at right angles in a clean cutting line. Bruises or similar are therefore excluded.
  • the deflection device also makes it possible to stop the device when the erosion machine is at a standstill without the wire tension being influenced thereby. Furthermore, it is possible to insert the wire into the device in a particularly simple manner, so that laborious manual adjustments can be dispensed with, in particular when the erosion machine is reloaded.
  • the simple construction of the device according to the invention enables use in the most varied configurations of wire EDM machines, so that a universal applicability is established.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Wire Processing (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Shearing Machines (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Disintegrating Or Milling (AREA)
EP90116233A 1989-09-08 1990-08-24 Dispositif pour le broyage de fil Expired - Lifetime EP0418589B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90116233T ATE83181T1 (de) 1989-09-08 1990-08-24 Vorrichtung zur drahtzerkleinerung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8910748U 1989-09-08
DE8910748U DE8910748U1 (de) 1989-09-08 1989-09-08 Vorrichtung zur Drahtzerkleinerung

Publications (2)

Publication Number Publication Date
EP0418589A1 true EP0418589A1 (fr) 1991-03-27
EP0418589B1 EP0418589B1 (fr) 1992-12-09

Family

ID=6842682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90116233A Expired - Lifetime EP0418589B1 (fr) 1989-09-08 1990-08-24 Dispositif pour le broyage de fil

Country Status (6)

Country Link
US (1) US5078032A (fr)
EP (1) EP0418589B1 (fr)
JP (1) JPH03166010A (fr)
AT (1) ATE83181T1 (fr)
DE (2) DE8910748U1 (fr)
ES (1) ES2036082T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5357072A (en) * 1993-03-25 1994-10-18 Tmtt Enterprises, Inc. Wire consolidator for wirecut EDM
JP3813369B2 (ja) * 1999-01-05 2006-08-23 古河電気工業株式会社 光ファイバ切断器
WO2004108998A1 (fr) * 2003-06-03 2004-12-16 J.G.S. Billingsley, Inc. Procede et appareil de coupe reglable de matiere filamenteuse
GB0716361D0 (en) * 2007-08-22 2007-10-03 Wm Smith & Son Neptune Works L Wire or strip cutting
US9862564B2 (en) 2013-10-25 2018-01-09 Columbia Insurance Company Cutter assembly for stretched yarn

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436792A (en) * 1965-11-25 1969-04-08 Hans Heinrich Wilhelm Hench Apparatus for producing strands or granules from liquid material

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2217766A (en) * 1939-11-24 1940-10-15 Du Pont Staple cutting apparatus
US2745490A (en) * 1953-01-14 1956-05-15 Maurer Sa Ing A Filament-stapilizing machine, including grinding ring
US3119294A (en) * 1960-09-01 1964-01-28 Du Pont Cutting apparatus with adjustable blade means
US3526232A (en) * 1969-05-23 1970-09-01 American Mach & Foundry Rod cutter
GB1308996A (en) * 1970-07-06 1973-03-07 British American Tobacco Co Cutting devices
DE2141972A1 (de) * 1971-08-21 1973-03-01 Siemag Siegener Masch Bau Vorrichtung zum unterteilen eines drahtwindungsstranges in einer bundbildestation
US3854356A (en) * 1973-07-17 1974-12-17 Amf Inc Thread cutting and clamping means
US4043238A (en) * 1976-04-21 1977-08-23 Sanders Associates, Inc. Cable cutter
US4283979A (en) * 1979-07-10 1981-08-18 North American Philips Corporation Adjustable slicing blade assembly

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436792A (en) * 1965-11-25 1969-04-08 Hans Heinrich Wilhelm Hench Apparatus for producing strands or granules from liquid material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band. 13, Nr. 385 (M-864)[3733], 25. August 1989; & JP-A-01 135 620 (MITSUBISHI YUKA BADISCHE CO.) 29-05-1989 *

Also Published As

Publication number Publication date
ES2036082T3 (es) 1993-05-01
ATE83181T1 (de) 1992-12-15
DE8910748U1 (de) 1989-11-02
EP0418589B1 (fr) 1992-12-09
DE59000572D1 (de) 1993-01-21
US5078032A (en) 1992-01-07
JPH03166010A (ja) 1991-07-18

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