EP0291774A2 - Déchiqueteur à lames rotatives - Google Patents

Déchiqueteur à lames rotatives Download PDF

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Publication number
EP0291774A2
EP0291774A2 EP88107217A EP88107217A EP0291774A2 EP 0291774 A2 EP0291774 A2 EP 0291774A2 EP 88107217 A EP88107217 A EP 88107217A EP 88107217 A EP88107217 A EP 88107217A EP 0291774 A2 EP0291774 A2 EP 0291774A2
Authority
EP
European Patent Office
Prior art keywords
cutting
feed
disks
shredder according
shafts
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
EP88107217A
Other languages
German (de)
English (en)
Other versions
EP0291774A3 (en
EP0291774B1 (fr
Inventor
Josef Frauscher
Manfred Pöcherstorfer
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.)
Alois Poettinger Maschinenfabrik GmbH
Original Assignee
Alois Poettinger Maschinenfabrik 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 Alois Poettinger Maschinenfabrik GmbH filed Critical Alois Poettinger Maschinenfabrik GmbH
Priority to AT88107217T priority Critical patent/ATE79788T1/de
Publication of EP0291774A2 publication Critical patent/EP0291774A2/fr
Publication of EP0291774A3 publication Critical patent/EP0291774A3/de
Application granted granted Critical
Publication of EP0291774B1 publication Critical patent/EP0291774B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2283—Feed means using rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • B02C2018/0069—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents with stripping devices

Definitions

  • the invention relates to a shredder for waste paper with the features of the preamble of claim 1.
  • Cutting roller shredders of this type are only suitable for processing limited compositions of the waste material and tend to malfunction if they differ.
  • an acute entry angle of the feed gap between the cutting disks is advantageous, but this results in poorer or even no absorption by the cutting unit in the case of thick packages or cardboard boxes.
  • Cutting roller shredders with very strong gripping and conveying feed rollers are suitable for processing coarse waste, cardboard boxes, wooden boxes and the like, but quickly lead to overloading and clogging in the case of leafy waste material.
  • a special problem is caused by long, thin material, such as the traction edges of computer printouts, cords, textile waste, in particular sacks, which start to wrap very easily on the feed rollers, thereby rendering them ineffective and causing malfunctions.
  • the object of the invention is for a cutting roller shredder of the type mentioned at the outset to be able to specify an arrangement of the essential features with which the cutting roller shredder can process waste material of a given composition range in a trouble-free and effective manner.
  • the design of the teeth of the cutting discs results in sufficient aggressiveness with the simultaneous possibility of stripping and ensures a high mechanical strength and the rejection of large quantities for drawing in through the feed gap.
  • the staggered arrangement of the teeth results in a periodic cut that runs evenly over the axial length of the cutting rollers and largely avoids peak loads on the drive due to the distribution.
  • the running of the cutting disks over a certain angular range determines the entry angle and thus the drawing-in behavior of the cutting roller shredder, a small angular range being more advantageous for the feeding of flaky waste material and a large angular range for spree waste material.
  • a small angular range being more advantageous for the feeding of flaky waste material and a large angular range for spree waste material.
  • the arrangement of the feed rollers in contact with the horizontal upper contact plane on the cutting disks of the cutting unit results in a particularly effective transfer of the waste material to the cutting unit.
  • the feed discs are arranged with a small gap in front of the side walls.
  • the tooth is favorable for a perfect delivery of the waste material from the feed discs to the cutting unit to provide shaped drivers with at most radially extending front sides and to form the back sides in a retreating arc shape.
  • the number of drivers can be selected depending on which waste material is to be conveyed. The firmer and bulkier the waste, the higher the number of drivers.
  • the diameter of the feed disks should be smaller than the diameter of the cutting disks of the cutting mechanism in order to limit the conveying speed and in particular to be able to additionally enlarge the entry angle for bulky goods.
  • a feed disk can be juxtaposed with a different number of cutting disks; it is particularly advantageous if a feed disk works with two cutting disks.
  • the feed disks of both shafts are advantageously axially offset from one another by the thickness of a cutting disk, which makes the transfer of the waste material particularly favorable.
  • the feed disks are arranged at an angle to the shaft, as a result of which the feed disks can get to different points of the waste goods during their circulation and attack them again and again, thereby ensuring the conveyance.
  • the feed disks are attached in a specific assignment in which the spaces between the cutting disks are cleared. With a particularly favorable design and arrangement of the feed disks, they can reach deeper between the cutting disks and clear them out.
  • wipers between the side walls of the hopper and the feed rollers, which wipers are guided between adjacent feed disks up to the shafts of the feed rollers and which prevent the winding when the feed rollers are suitably arranged. It is advantageous if the wipers with the top and bottom sides, on the shafts with obtuse angles, have edges which prevent goods from being drawn in between the shafts and wipers.
  • the undersides of the wipers end with the side walls of the shaft of the cutting unit forming an obtuse angle at them, so that the space between the wipers and the cutting unit does not become clogged with waste material and thereby cause malfunctions.
  • top of the wipers at a distance above a horizontal plane running through the axes of the shafts, so that when the feed rollers return, which is switched on when overloaded, no material can get stuck, but is laid down loosely and when the feed rollers run in the direction of rotation in which the cutting unit is loaded, the material is taken again.
  • the cutting roller shredder has a housing 1, which comprises a hopper 2 and an underlying vertical shaft 3, in which a cutting unit 4 is arranged, which consists of two parallel, horizontal, oppositely driven shafts 6, 6 '' with cutting disks pushed thereon in a rotationally fixed manner 'Consists of spacers 8,8' at a distance and in which the cutting discs 7,7 'of the two shafts 6,6' alternately over an angular range 10,10 'of their circumference over a circumferential region 30, 30' are arranged one inside the other and on a between the cutting disks 7,7 'lying feed gap 9 converge.
  • the cutting discs 7, 7 ' are each provided with a tooth 11 or 11', the teeth of the opposing adjacent cutting discs 7 or 7 'alternately running one after the other into the feed gap 9.
  • the teeth 11, 11 'of the cutting disks 7, 7' have a radially oriented front side 24, an upper side 25 perpendicular thereto and a rear side 26 running back tangentially to the circumference of the cutting disk.
  • the cutting discs 7, 7 ' are provided with ground nitride surfaces and rough peripheral surfaces 23.
  • the cutter 4 are two feed rollers 5.5 ', laterally mounted in the hopper 2 at a short distance on the side walls 22,22' upstream.
  • the shafts 12, 12 ' are aligned parallel to the shafts 6, 6' of the cutting mechanism 4 and driven in the same direction with them, at a lower speed.
  • feed disks 13, 13' are attached at an inclination angle 29 in the same orientation at a distance 14, which have an elliptical outline, two tooth-shaped drivers 15, 15 'being mounted opposite one another on each feed disk 13, 13' , which have a radial front side 27 and a backward backward arc 28, which are arranged at circumferential locations 34, which is the longest radial beam 32 hits, which runs simultaneously in the direction of the large inclination of the feed disc 13 or 13 '.
  • the shape of the outline is chosen so that the distance of the circumferential point 34 of the longest radial beam 32, which runs at the greatest inclination, ie at the angle of inclination 29, from the axis of the shaft 12 the length of the shortest radial beam 33, which is perpendicular to the longest Radial beam 34 runs, corresponds.
  • the feed disks 13, 13 'of a shaft 12, 12' are each assigned to the cutting disks 7, 7 'of a shaft 6 or 6'.
  • the feed discs 13 or 13 ' are mounted on a cutting disc 7 or 7' on a shaft 12 or 12 'and touch with their disc circumference the upper, horizontal contact plane 18 of the cutting discs 7,7' and engage in the area of their greatest inclination with the tooth-shaped drivers 15,15 'on the orbit 20 on both sides of this feed disk in the orbit 19 of the teeth 11 or 11', or in the spaces between the adjacent cutting disks.
  • wipers 36 and 36' on mounting plates 50 and 50 'be consolidates, each between two feed discs 13, 13 and 13 ', 13' of the feed rollers 5 and 5 'through to the shafts 12 and 12' and these extend over an angle 47 of approximately 90 degrees.
  • the wipers 36.36 ' have on the undersides 39.39', at the ends 51.51 ', which face the shafts 12.12', wiping edges 38.38 'which pull material carried away from the shafts.
  • the undersides 39,39 ' are guided to the side walls 21,21' of the shaft 3, on which they meet at an obtuse angle 42 of more than 90 degrees, so that no material can accumulate at this point.
  • the tops 43, 43 'of the wipers 36, 36' include with the tangents 46 to the shafts 12, 12 'an obtuse angle 45 of more than 90 degrees, so that no material can accumulate when the cutting unit 4 and the feed rollers 5.5 'are switched to return when overloaded.
  • the wipers 36,36 ' are with the tops 43,43' at a distance above a horizontal plane 48 which runs through the axes 49 and 49 'of the shafts 12 and 12', whereby the application of material is avoided.
  • the feed discs 13,13 ' capture the waste at all possible points and push it into the cutting unit 4 and at the same time clean the teeth 11,11' and the spaces between the cutting discs 7,7 ', but at the same time also the tooth-shaped drivers 15,15' by stripping each other.
  • the teeth 11,11 'of the cutting discs 7,7' capture the waste and pull it between the opposing cutting discs, the cut being made at the edge between the end face and the peripheral surface 23, whereupon the cut strip is drawn in until the resistance becomes too great and tear the strips and produce chopped waste that is particularly suitable for feeding screw presses.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP88107217A 1987-05-16 1988-05-05 Déchiqueteur à lames rotatives Expired - Lifetime EP0291774B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107217T ATE79788T1 (de) 1987-05-16 1988-05-05 Schneidwalzenzerkleinerer.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3716481 1987-05-16
DE3716481 1987-05-16
DE3723928 1987-07-20
DE19873723928 DE3723928A1 (de) 1987-05-16 1987-07-20 Schneidwalzenzerkleinerer

Publications (3)

Publication Number Publication Date
EP0291774A2 true EP0291774A2 (fr) 1988-11-23
EP0291774A3 EP0291774A3 (en) 1989-08-30
EP0291774B1 EP0291774B1 (fr) 1992-08-26

Family

ID=25855686

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107217A Expired - Lifetime EP0291774B1 (fr) 1987-05-16 1988-05-05 Déchiqueteur à lames rotatives

Country Status (2)

Country Link
EP (1) EP0291774B1 (fr)
DE (2) DE3723928A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228690A (en) * 1989-03-01 1990-09-05 Hsu Wei Shu Chin Scrap plastics clipper
EP0551703A1 (fr) * 1992-01-13 1993-07-21 Fellowes Manufacturing Company Déchiqueteur de documents avec racleurs et dispositif de coupe pour celui-ci
WO1995013139A1 (fr) * 1993-11-12 1995-05-18 Environmental Products Corporation Assemblage pour la decoupe de recipients
EP0876843A1 (fr) * 1997-05-10 1998-11-11 HAMMEL Recyclingtechnik GmbH Dispositif de broyage de matière
EP1334771A1 (fr) * 2002-02-06 2003-08-13 Hermann Schwelling Destructeur de documents
CN106238162A (zh) * 2016-08-04 2016-12-21 刘运华 一种环保用废纸高效破碎装置
CN113021522A (zh) * 2021-05-06 2021-06-25 天长市润米生物科技有限公司 一种口罩辊切刀具
CN115958052A (zh) * 2022-09-15 2023-04-14 山东迈雅生物科技股份有限公司 一种基于镉污染的土壤修复系统及方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011670A1 (de) * 1989-04-13 1990-10-18 Poettinger Alois Landmasch Zufuehrvorrichtung
DE19745134A1 (de) * 1997-10-13 1999-04-15 Fr Petersen Maskinfabrik Peter Zerkleinerungsverfahren für Grobmaterial und zugehöriger Zerkleinerer
CN103611610B (zh) * 2013-11-28 2017-01-11 深圳惠格浩电子有限公司 碎纸机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1062977B (de) * 1957-08-05 1959-08-06 Josef Westner Schneidwerk fuer Haeckselmaschinen mit auf der Antriebsachse schraeg angeordneten, als Taumelscheiben arbeitenden Scheibenmessern
DE3112666A1 (de) * 1981-03-31 1982-10-14 Feinwerktechnik Schleicher & Co, 7778 Markdorf Abstreiffinger im reisswerk einer zerreissmaschine fuer text- und datentraeger
AT375842B (de) * 1982-07-27 1984-09-10 Hasenbichler Christian Vorrichtung zum zerkleinern von abfall
EP0174148A2 (fr) * 1984-08-31 1986-03-12 Mochizuki Precision Machine Industries Co. Ltd. Appareil à découper
FR2573327A1 (fr) * 1984-11-16 1986-05-23 Isme Sa Dechiqueteur comportant deux arbres rotatifs a axes horizontaux
GB2169222A (en) * 1984-12-21 1986-07-09 Ofrex Group Holdings Plc Document shredding machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1062977B (de) * 1957-08-05 1959-08-06 Josef Westner Schneidwerk fuer Haeckselmaschinen mit auf der Antriebsachse schraeg angeordneten, als Taumelscheiben arbeitenden Scheibenmessern
DE3112666A1 (de) * 1981-03-31 1982-10-14 Feinwerktechnik Schleicher & Co, 7778 Markdorf Abstreiffinger im reisswerk einer zerreissmaschine fuer text- und datentraeger
AT375842B (de) * 1982-07-27 1984-09-10 Hasenbichler Christian Vorrichtung zum zerkleinern von abfall
EP0174148A2 (fr) * 1984-08-31 1986-03-12 Mochizuki Precision Machine Industries Co. Ltd. Appareil à découper
FR2573327A1 (fr) * 1984-11-16 1986-05-23 Isme Sa Dechiqueteur comportant deux arbres rotatifs a axes horizontaux
GB2169222A (en) * 1984-12-21 1986-07-09 Ofrex Group Holdings Plc Document shredding machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228690A (en) * 1989-03-01 1990-09-05 Hsu Wei Shu Chin Scrap plastics clipper
EP0551703A1 (fr) * 1992-01-13 1993-07-21 Fellowes Manufacturing Company Déchiqueteur de documents avec racleurs et dispositif de coupe pour celui-ci
US5295633A (en) * 1992-01-13 1994-03-22 Fellowes Manufacturing Company Document shredding machine with stripper and cutting mechanism therefore
WO1995013139A1 (fr) * 1993-11-12 1995-05-18 Environmental Products Corporation Assemblage pour la decoupe de recipients
EP0876843A1 (fr) * 1997-05-10 1998-11-11 HAMMEL Recyclingtechnik GmbH Dispositif de broyage de matière
EP1334771A1 (fr) * 2002-02-06 2003-08-13 Hermann Schwelling Destructeur de documents
CN106238162A (zh) * 2016-08-04 2016-12-21 刘运华 一种环保用废纸高效破碎装置
CN113021522A (zh) * 2021-05-06 2021-06-25 天长市润米生物科技有限公司 一种口罩辊切刀具
CN115958052A (zh) * 2022-09-15 2023-04-14 山东迈雅生物科技股份有限公司 一种基于镉污染的土壤修复系统及方法
CN115958052B (zh) * 2022-09-15 2024-02-02 山东迈雅生物科技股份有限公司 一种基于镉污染的土壤修复系统及方法

Also Published As

Publication number Publication date
DE3723928A1 (de) 1988-11-24
EP0291774A3 (en) 1989-08-30
DE3873977D1 (de) 1992-10-01
EP0291774B1 (fr) 1992-08-26

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