EP0516625B1 - Schneidvorrichtung für eine entdrahtungsmaschine - Google Patents

Schneidvorrichtung für eine entdrahtungsmaschine Download PDF

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Publication number
EP0516625B1
EP0516625B1 EP91900163A EP91900163A EP0516625B1 EP 0516625 B1 EP0516625 B1 EP 0516625B1 EP 91900163 A EP91900163 A EP 91900163A EP 91900163 A EP91900163 A EP 91900163A EP 0516625 B1 EP0516625 B1 EP 0516625B1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting device
teeth
constructed
receiving pockets
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.)
Expired - Lifetime
Application number
EP91900163A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0516625A1 (de
Inventor
Kurt Gronau
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.)
Sulzer Papertec Euskirchen GmbH
Original Assignee
Kleinewefers GmbH
Sulzer Papertec Euskirchen GmbH
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 Kleinewefers GmbH, Sulzer Papertec Euskirchen GmbH filed Critical Kleinewefers GmbH
Publication of EP0516625A1 publication Critical patent/EP0516625A1/de
Application granted granted Critical
Publication of EP0516625B1 publication Critical patent/EP0516625B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0025—Removing or cutting binding material, e.g. straps or bands

Definitions

  • the invention relates to a cutting device for a de-wiring machine for severing the tying wires of bales, in particular of cellulose bales, with two elongated knives which can be pushed back and forth relative to one another and are provided on their cutting sides with a row of teeth each consisting of teeth arranged one behind the other at regular intervals, which have an undercut on their flanks at the front in the cutting direction.
  • Such a cutting device is used, for example, in a wire removal machine, as is known from DE-PS 37 07 966.
  • the cutting device is combined with a gripping device which, after cutting the wires, brings them into a predetermined position in which they can be reliably gripped by a winding device.
  • the invention has for its object to develop the known cutting device in that the Cutting time can be precisely defined to ensure that the gripping device already holds the tying wires reliably before they are cut by the cutting device.
  • the front flanks of the teeth each have a receiving pocket for at least one lacing wire at their lower ends in the region of the tooth base, that the rear ends of the receiving pockets are designed as a cutting edge and that the front flanks of the teeth are in their section are formed between the tooth head and the receiving pocket as blunt, continuously backward sliding edges.
  • the tying wires to be severed are drawn from the blunt sliding edges towards the tooth feet into the receiving pockets.
  • the process of severing the tying wires drawn into the receiving pockets only begins when the cutting edges, which are formed at the ends of the receiving pockets located in the cutting direction, have approached one another to such an extent that their distance is less than a wire diameter.
  • the beginning of the cutting process can thus be precisely defined in the cutting device according to the invention and can be matched to the work steps of a gripping device which interacts with the cutting device.
  • the receiving pockets are formed deeper than the diameter of the wire to be cut, so that it can be pulled completely into the respective receiving pocket.
  • the receiving pockets should be formed deeper than half the diameter of the wire to be cut, so that there are two opposing receiving pockets can completely enclose the respective wire.
  • the ends of the receiving pockets which are designed as cutting edges, can be arcuate, preferably semicircular.
  • the ends of the receiving pockets which are designed as cutting edges, expediently extend over their entire height, so that a flawless and reliable cut can be made.
  • the cutting edges can be formed by an undercut.
  • bevels are preferably formed, which extend from the highest point of the respective tooth lying in the extension of the front flanks at an angle to the side of the tooth feet.
  • the cutting device consists of a cutter bar 1, which is fastened with the aid of screws 2 to a machine frame 3, which is only shown in part.
  • the cutter bar 1 consists essentially of a holder 4, which has a U-shaped cross section, and two elongated knives 5 and 6, which are guided in a longitudinally displaceable manner between the legs 7 and 8 of the U-shaped holder 4.
  • a plurality of screws 11 are arranged distributed over the length of the knife bar 1, which extend through the two legs 7 and 8 of the U-shaped holder 4 and the knives 5 and 6 and at their threaded end 12 are provided with a lock nut 13.
  • the play between the two knives 5 and 6 can be adjusted precisely or adjusted when the knife bar 1 is worn or deformed.
  • the two knives 5 and 6 are provided in the area of the screws 11 with elongated holes 14 and 15, which are at least as long as the intended strokes of the two knives 5 and 6.
  • lifting cylinders (not shown in the drawing) can be provided, for example.
  • both knives 5 and 6 are moved in opposite directions relative to the U-shaped holder over the same distances. But there is also the possibility that one of the two knives is fixed and only the other is driven.
  • Both knives 5 and 6 have teeth 16 and 17 arranged one behind the other on their cutting sides at uniform intervals, the front flanks 18 and 19 of which, at an angle to one another, move past one another like scissors will.
  • the front tooth flanks 18 and 19 extend from the tooth head 20 in the respective plane of the knife with a corresponding undercut obliquely to the rear, so that when the knives are actuated the interacting front flanks 18 and 19 of the teeth 16 and 17 initially in the area of the tooth heads 20 touch, while the other areas of the front flanks 18 and 19 come into contact with each other only when the knives 5 and 6 continue to move.
  • the interacting front flanks 18 and 19 of the teeth 16 and 17 each have at their lower ends in the area of the respective tooth base a receiving pocket 21 and 22, respectively, which extends back a little from the respective front flank 18 and 19.
  • the receiving pockets 21 and 22 are higher than the diameter of a wire 23 to be cut and deeper than half the diameter of the wire.
  • the rear ends of the receiving pockets 21 and 22 in the cutting direction are designed as cutting edges 24, which are created by applying a relief grinding 25.
  • the front flanks 18 and 19 of the teeth 16 and 17 are formed as blunt sliding edges. Due to this design feature, the strapping wires can only be severed in the area of the receiving pockets 21 and 22 with the aid of the cutting edges 24, while the blunt flanks 18 and 19 only serve to grip the strapping wires to be severed and in Towards the receiving pockets 21 and 22.
  • bevels 28 are formed which extend from the highest point of the respective tooth 16 and 17, which is in the extension of the front flanks 18 and 19, at an angle in the direction of the tooth feet extend there.
  • the respective wire 23 is enclosed by the two front flanks 18 and 19 of two interacting teeth 16 and 17. Since the flanks 18 and 19 are blunt, the wire 23 cannot be severed in the area of the flanks, but is pulled in the direction of the receiving pockets 21 and 22.
  • the two immediately opposite receiving pockets 21 and 22 form an all-round closed area, as shown in FIG. 6 27, so that the wire 23 comes to lie exactly between the cutting edges 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Shearing Machines (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Details Of Cutting Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Threshing Machine Elements (AREA)
  • Control Of Velocity Or Acceleration (AREA)
EP91900163A 1990-02-26 1990-12-13 Schneidvorrichtung für eine entdrahtungsmaschine Expired - Lifetime EP0516625B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4005964A DE4005964A1 (de) 1990-02-26 1990-02-26 Schneidvorrichtung fuer eine entdrahtungsmaschine
DE4005964 1990-02-26
PCT/DE1990/000964 WO1991012995A1 (de) 1990-02-26 1990-12-13 Schneidvorrichtung für eine entdrahtungsmaschine

Publications (2)

Publication Number Publication Date
EP0516625A1 EP0516625A1 (de) 1992-12-09
EP0516625B1 true EP0516625B1 (de) 1994-06-01

Family

ID=6400959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91900163A Expired - Lifetime EP0516625B1 (de) 1990-02-26 1990-12-13 Schneidvorrichtung für eine entdrahtungsmaschine

Country Status (8)

Country Link
EP (1) EP0516625B1 (fi)
JP (1) JP2946428B2 (fi)
AT (1) ATE106341T1 (fi)
CA (1) CA2072621C (fi)
DE (2) DE4005964A1 (fi)
DK (1) DK0516625T3 (fi)
FI (1) FI91734C (fi)
WO (1) WO1991012995A1 (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE467822B (sv) * 1991-02-07 1992-09-21 Sunds Defibrator Ind Ab En anordning foer avtraadning av balar daer tvaa koncentriska roerformiga element med tvaergaaende slitsar samverkar foer avklippning och upplindning av traadarna
SE9703609D0 (sv) 1997-10-03 1997-10-03 Andersson Olof Avtrådningsapparat
CN103803132B (zh) * 2014-01-16 2015-11-25 宁波大学 一种多功能微孔板快速封膜装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816912C2 (de) * 1978-04-19 1980-04-03 B+G-Foerdertechnik Gmbh, 5350 Euskirchen Schneidvorrichtung zum Durchtrennen von Verschnürungen
DE3411030A1 (de) * 1984-03-24 1985-09-26 Alfons 8301 Eggmühl Holmer Ballendrahtschneider
DE3707966A1 (de) * 1987-03-12 1988-09-22 B & G Foerdertechnik Gmbh Entdrahtungsmaschine
BR8807738A (pt) * 1988-07-05 1990-08-07 Voith Gmbh J M Dispositivo para remocao de voltas cortadas de uma amarracao de um fardo prensado
SE8902643D0 (sv) * 1989-08-02 1989-08-02 Sunds Defibrator Anordning foer avtraadning av balar

Also Published As

Publication number Publication date
DE4005964A1 (de) 1991-09-05
ATE106341T1 (de) 1994-06-15
FI91734C (fi) 1994-08-10
JP2946428B2 (ja) 1999-09-06
DE4005964C2 (fi) 1993-04-29
FI91734B (fi) 1994-04-29
DK0516625T3 (da) 1994-10-10
EP0516625A1 (de) 1992-12-09
JPH05504317A (ja) 1993-07-08
FI922357A0 (fi) 1992-05-22
DE59005969D1 (de) 1994-07-07
WO1991012995A1 (de) 1991-09-05
CA2072621C (en) 1996-11-12
FI922357A (fi) 1992-05-22
CA2072621A1 (en) 1991-09-05

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