EP0239104A2 - Dispositif de coupe pour déchiqueteur de documents - Google Patents

Dispositif de coupe pour déchiqueteur de documents Download PDF

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Publication number
EP0239104A2
EP0239104A2 EP87104455A EP87104455A EP0239104A2 EP 0239104 A2 EP0239104 A2 EP 0239104A2 EP 87104455 A EP87104455 A EP 87104455A EP 87104455 A EP87104455 A EP 87104455A EP 0239104 A2 EP0239104 A2 EP 0239104A2
Authority
EP
European Patent Office
Prior art keywords
cutting
scraper
cutting device
strips
plates
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
EP87104455A
Other languages
German (de)
English (en)
Other versions
EP0239104B1 (fr
EP0239104A3 (en
Inventor
Hermann Schwelling
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.)
H S M Pressen GmbH
Original Assignee
H S M Pressen 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
Priority claimed from DE3610537A external-priority patent/DE3610537C2/de
Priority claimed from DE19863610539 external-priority patent/DE3610539C2/de
Application filed by H S M Pressen GmbH filed Critical H S M Pressen GmbH
Publication of EP0239104A2 publication Critical patent/EP0239104A2/fr
Publication of EP0239104A3 publication Critical patent/EP0239104A3/de
Application granted granted Critical
Publication of EP0239104B1 publication Critical patent/EP0239104B1/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
    • B02C18/18—Knives; Mountings thereof
    • B02C18/182—Disc-shaped knives
    • 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 cutting device for document shredders according to the preamble of the main claim, especially to so-called particle cutters with a longitudinal cut and additional cross separation of the material.
  • DE-PS 27 49 482 already discloses a scraper system for the shaft bottom and cutting roller surface which is specifically intended for document shredders of the type in question, which consists of strippers which are arranged next to one another and fully encompass the roller base and additionally comprise auxiliary strippers which lie on the roller surface in a sector-like manner common bearing rods are lined up and held in this way in the housing, but this is precisely a construction that offers the fine and thus unstable cutting particles a wealth of possibilities to penetrate the spaces between the wipers and auxiliary wipers and the entire cutting unit is closed after a very short time clog.
  • the cutting unit shown first shows scraper plates 7 for the cutting rollers 1, 2, in which strippers 7, which are mounted over the entire roller width B between two disk-like cutting blades 3, 4 via rods 5 and 6 in the side plates P, are sector-like and with an adapted radius R extend to the roller core la, 2a and additional Wiper elements rest on the surface or the outer circumference 3a, 4a of the cutting disks or circular knives 3, 4.
  • the novelty is that the holding rods 5, 6 for the wipers 7 are designed in the form of strips and that, on the one hand, the areas 5a and 6a adjacent to the cutting rollers 1, 2 rest positively on the outer circumference 3a, 4a of the circular knives 3, 4 and on the other hand have a hook-shaped taper 5b or 6b, which engage in an undercut groove 7b on the back of each scraper plate 7, the holding rods 5 and 6 for the scraper plates 7 being mirror images of one another in cross section and at a distance x from one another, diverging from respective rod base 5a or 6a forth individual strips 1, 2 are formed and the connection between rod base 5a or 6a and groove 7b of the stripper plates 7 is dovetail-shaped.
  • a very special advantage of the dovetail design is, however, that the sensitive tip parts (lugs 7a) of the stripper plates 7 are held directly by the dovetail base 7b of the stripper strips according to the dash-dotted line K and are thus strengthened or supported in terms of strength. Also important is the smooth outer contour of the strips 5 and 6, on which no particles can therefore adhere.
  • the stripping lugs 7a on the side of the cutting gap Sp are at different distances a, b, c, d from the center M of the overlap of the cutting disks 3 and 4, the sum of the Total distances a + b and c + d from nose 7a to nose 7a are different in size for each of the two cutting rollers 1 and 2, respectively.
  • the main result of this is that the fibrous clumps of cuttings W inevitably adhering to the scraper noses 7a on the cut material exit side A do not reach the center M of the cutting disc overlap area at the same time as the roll is returning and there, in addition to the material already present in the cutting gap, are pressed and solidified on the roll base becomes.
  • this arrangement guarantees that such material never reaches the scraper noses 7a on the paper feed side E at the same time, but always one after the other, thus virtually halving the sum of the scraper resistances for the drive, or greatly reducing the impact load.
  • the cutting rollers 1, 2 are coupled to the drive wheel 10 via gear wheels 8, 9.
  • the wiper strips are clamped by screws 11 in the bearing or housing side plates P, in which the roller bearings 12 are also located.
  • types I to IV of the wiper strips are also to be used to solve the same problem, as indicated by FIGS. 3 to 6 bar, in which the individual stripper plates 20, 20 ⁇ or 20 ⁇ have a socket-like extension 24 or 25 or 26 which protrudes from the outer circumference 13a or 14a of the circular knives 13 and 14 and projects into the space between the stripper strips 15 to 18 and is penetrated by at least one continuous fastening rod 19.
  • the special design in detail provides that the areas of the scraper strips 15 to 18 which are in each case form-fitting on the outer circumference 13a and 14a of the circular knives 13 and 14 engage in corresponding grooves 21 and 22 of the scraper plates 20 and 20 'or corresponding recesses 23 in these 20 ⁇ penetrate, wherein in variants II and III the paired wiper strips 17 and 18 are connected to each other by back parts 17a and 18a and thus embrace the bases 24 and 25 of the wiper plates 20 and 20 ⁇ like a hood.
  • the wiper strips are each connected by screws 11 to the side plates P of the device housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP87104455A 1986-03-27 1987-03-26 Dispositif de coupe pour déchiqueteur de documents Expired - Lifetime EP0239104B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3610537A DE3610537C2 (de) 1986-03-27 1986-03-27 Abstreifer für die Schneidwalzen von Aktenvernichtern
DE3610537 1986-03-27
DE19863610539 DE3610539C2 (de) 1986-03-27 1986-03-27 Abstreifereinheit für das Schneidwalzenpaar eines Aktenvernichters
DE3610539 1986-03-27

Publications (3)

Publication Number Publication Date
EP0239104A2 true EP0239104A2 (fr) 1987-09-30
EP0239104A3 EP0239104A3 (en) 1988-08-03
EP0239104B1 EP0239104B1 (fr) 1991-06-05

Family

ID=25842427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104455A Expired - Lifetime EP0239104B1 (fr) 1986-03-27 1987-03-26 Dispositif de coupe pour déchiqueteur de documents

Country Status (2)

Country Link
EP (1) EP0239104B1 (fr)
DE (1) DE3770503D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674147A1 (fr) * 1991-03-22 1992-09-25 Schleicher & Co Int Destructeur de documents.
EP0525491A1 (fr) * 1991-07-13 1993-02-03 Hermann Schwelling Racleur pour un petit destructeur de document
WO1993025312A1 (fr) * 1992-06-12 1993-12-23 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Dispositif pour la plastification d'une matiere thermoplastique
EP0616850A3 (fr) * 1993-03-22 1995-01-25 Hermann Schwelling Destructeur de documents.
WO2016070948A1 (fr) 2014-11-07 2016-05-12 Akten-Ex Gmbh & Co Kg Destruction de papier écrit
CN110064477A (zh) * 2019-04-29 2019-07-30 杭州铭展网络科技有限公司 一种便于维护的碎纸机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749482C2 (de) * 1977-11-04 1986-01-09 Feinwerktechnik Schleicher & Co, 7778 Markdorf Schneidwalze eines Reißwerkes
FR2502980B1 (fr) * 1981-03-31 1986-05-16 Schwelling Hermann Mecanisme coupeur pour destructeur de documents
DE3112666A1 (de) * 1981-03-31 1982-10-14 Feinwerktechnik Schleicher & Co, 7778 Markdorf Abstreiffinger im reisswerk einer zerreissmaschine fuer text- und datentraeger
DE3577514D1 (de) * 1984-08-31 1990-06-13 Mochizuki Precision Machine Schneidmaschine.

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674147A1 (fr) * 1991-03-22 1992-09-25 Schleicher & Co Int Destructeur de documents.
EP0525491A1 (fr) * 1991-07-13 1993-02-03 Hermann Schwelling Racleur pour un petit destructeur de document
WO1993025312A1 (fr) * 1992-06-12 1993-12-23 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Dispositif pour la plastification d'une matiere thermoplastique
AU668184B2 (en) * 1992-06-12 1996-04-26 Helmut Bacher Device for plasticising thermoplastic material
EP0616850A3 (fr) * 1993-03-22 1995-01-25 Hermann Schwelling Destructeur de documents.
WO2016070948A1 (fr) 2014-11-07 2016-05-12 Akten-Ex Gmbh & Co Kg Destruction de papier écrit
DE202015009627U1 (de) 2014-11-07 2018-11-15 Akten-Ex Gmbh & Co. Kg Papier aus einer Aktenvernichtung
DE202015009629U1 (de) 2014-11-07 2018-11-15 Akten-Ex Gmbh & Co. Kg Anlage zur Aktenvernichtung
DE202015009626U1 (de) 2014-11-07 2018-11-15 Akten-Ex Gmbh & Co. Kg Aktenvernichter
CN110064477A (zh) * 2019-04-29 2019-07-30 杭州铭展网络科技有限公司 一种便于维护的碎纸机

Also Published As

Publication number Publication date
DE3770503D1 (de) 1991-07-11
EP0239104B1 (fr) 1991-06-05
EP0239104A3 (en) 1988-08-03

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