EP3195934A1 - Dispositif de broyage et procédé de fonctionnement d'un tel dispositif de broyage - Google Patents

Dispositif de broyage et procédé de fonctionnement d'un tel dispositif de broyage Download PDF

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Publication number
EP3195934A1
EP3195934A1 EP17152106.5A EP17152106A EP3195934A1 EP 3195934 A1 EP3195934 A1 EP 3195934A1 EP 17152106 A EP17152106 A EP 17152106A EP 3195934 A1 EP3195934 A1 EP 3195934A1
Authority
EP
European Patent Office
Prior art keywords
cutting
crushing
rollers
teeth
comminution
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
EP17152106.5A
Other languages
German (de)
English (en)
Other versions
EP3195934B1 (fr
Inventor
DE ZÁRATE Javier ORTIZ
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.)
Intimus International GmbH
Original Assignee
Intimus International 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 Intimus International GmbH filed Critical Intimus International GmbH
Publication of EP3195934A1 publication Critical patent/EP3195934A1/fr
Application granted granted Critical
Publication of EP3195934B1 publication Critical patent/EP3195934B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B02C18/06—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
    • B02C18/06—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
    • B02C18/2291—Feed chute arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating
    • 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
    • B02C2018/0015—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents for disintegrating CDs, DVDs and/or credit cards
    • 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
    • B02C2018/0023—Switching devices

Definitions

  • the invention relates to a crushing device for crushed material such as memory cards, mobile terminals or the like., So in particular relatively stable, rigid and sometimes thick or voluminous and possibly smooth crushed material. Furthermore, the invention relates to a method for operating such a comminution device.
  • shredders Various similar shredding devices, also called shredders, are known from the prior art. These can be designed not only for shredding paper, but also for CDs, such as the DE 19912036 A1 , or various other media such as according to the DE 10008442 A1 , However, these shredders are not suitable for mobile terminals such as mobile phones or tablet computers.
  • the invention has for its object to provide an aforementioned crushing device and an aforementioned method for their operation, with which problems of the prior art can be avoided and it is particularly possible, the aforementioned crushed material, especially mobile devices, simple, good and secure to crush. In particular, it is important that stored on this shredded digital data can no longer be read or used.
  • the comminution device comprises a comminution unit which, in a substantially known manner, interacts with one another in a mutually parallel manner opposite directions of rotation has rotatably driven cutting rollers.
  • the cutting rollers each have alternately arranged and intersecting or intermeshing cutting discs, which together form a so-called cutting gap over the length of the cutting rollers.
  • This cutting gap is the area in which comminuted material comes into contact with both cutting rollers and thus its comminution is started.
  • cutting discs of a cutting roller each engage in an annular groove between adjacent cutting discs of the other cutting roller.
  • this intervention is alternating.
  • all but the outermost cutting disks at each of the two ends of the cutting rollers abut all cutting disks on two adjacent cutting disks of the opposite cutting drum. In this case, then no broad open spaces or the like. intended.
  • the cutting discs have, in a manner known per se, cutting edges on their outer edge edges which cooperate with corresponding cutting edges of the cutting discs of the other cutting roller. Furthermore, the cutting disks have a plurality of teeth along the outer circumference, for example 6 teeth to 20 teeth. Each tooth has a tooth tip and a tooth cutting edge on this tooth tip.
  • the teeth are identical in their shape for all cutting wheels equal or particularly advantageous even identical.
  • the teeth or the tooth cutting edges of the cutting discs are aligned in such a way that they lie next to the teeth or tooth cutting edges of the other cutting roller during rotation of the cutting rollers in one working direction during operation of the comminution unit or comminution device.
  • a feed with a feed path for the comminuted material is provided to the crushing plant.
  • This can be, for example, a kind of track or slide to bring the crushed material automatically to the crushing plant.
  • this feed or the feed path should be above the crushing plant or run, in particular with a slope, so that the crushed material automatically after laying or Feeding into the crusher slips to shredding.
  • the feed path can end above the comminution unit or above the cutting gap, a distance can advantageously be about 5 cm to 20 cm.
  • an elongated guide device is arranged, which is advantageous in the manner of a long projection or in the manner of a guide rib or the like. can be trained.
  • the guide device extends over a length of at least 30% of the length of the cutting rollers or of the cutting gap. Furthermore, the guide device is inclined in its longitudinal course by a fastening to the crushing device or in a guide shaft towards the free end downwards.
  • An inclination angle can be 1 ° to 20 ° or even up to 45 °. Due to the inclination, the comminution material reaching the guide device can automatically slide along it and, in particular in the case of particularly large comminuted material, be guided by a special design of the guide device into a specific region of the cutting rollers or the comminution unit. In a further embodiment of the invention, this region can then be particularly well suited for the comminution of such large comminuted material and be designed accordingly.
  • a crushing device is provided by the invention, which is particularly suitable for stable, smooth and possibly also thick crushed material.
  • comminuted material especially the inventive design of the cutting discs or the teeth and their arrangement has been found to be advantageous on the cutting discs and cutting rollers.
  • a tooth cutting of the teeth or the cutting discs may have a longitudinal direction parallel to the longitudinal directions of the cutting rollers. This means that the tooth cutting edge is transverse to the plane of the cutting discs.
  • the cutting rollers are parallel to each other.
  • the teeth of directly interlocking adjacent cutting discs to a median plane between the cutting rollers which are also perpendicular to a plane in which the axes of rotation of the cutting rollers are mirror-symmetrical, particularly advantageous in each position of the cutting discs or teeth.
  • the teeth of directly intermeshing opposed cutting discs have the same distance from each other and, so to speak, simultaneously hit this center plane.
  • the distances of the teeth on a cutting disc are advantageously uniform. This applies in particular to all cutting discs of a cutting roller or all cutting discs of both cutting rollers. Thus, a production of the crushing device or the cutting rollers can be simplified.
  • the teeth of the cutting discs are designed so that they are sawtooth-shaped forward and inclined in the direction of rotation of the cutting rollers. Such relatively sharp teeth can very well grab the said comminution material in order to pull it into the comminution unit or cutting unit.
  • recesses are provided along the cutting rollers which form the aforementioned teeth or through which the teeth are worked out.
  • These recesses and the teeth of a cutting roller may each extend along lines which are non-parallel to the longitudinal axis of the cutting roller or which have an angle between 1 ° and 10 °, preferably at most 5 °, to a plane through the longitudinal axis of the cutting roller or include.
  • the lines run around the cutting rollers as slightly helical spirals.
  • the guide device according to the invention can also be provided that it covers between 30% and 70% of the length of the cutting gap between the cutting rollers, advantageous between 40% and 60%. It should therefore not run over the entire cutting gap, since in the free area especially large crushed material is to be introduced into the crushing unit or between the cutting rollers.
  • the guide device in particular also with its inclination according to the invention or its oblique course for automatically slipping the comminuted material, is used for this purpose.
  • the guide device can advantageously extend directly above the cutting gap or above the cutting rollers. It can be particularly advantageous while covering a center line between the two cutting rollers at least partially.
  • the guide advantageously in its longitudinal course towards a free end, which ends so to speak over the crushing unit or on the cutting gap is inclined, it can be inclined in flat configuration in a direction transverse thereto, ie in the width direction, towards a wall of a guide shaft be attached to it or at least to which it is very close. It can thus be achieved that the comminuted material also actually slides along the guide device as far as its free end and does not slip sideways into the comminuting device.
  • a guide device is designed as a sheet metal, particularly advantageously without openings, so that no crushed material can catch or get caught therein.
  • a guide shaft may be provided between the feed path from above and the comminution unit below or the cutting rollers.
  • the feed path can reach to one side of the guide shaft, wherein it advantageously extends transversely to the longitudinal direction of the cutting rollers.
  • the guide device according to the invention is arranged on the feed path opposite side of the guide shaft, but in any case under the feed path.
  • large objects to be shredded can slide over the feed track, first falling onto the guide device, then again sliding along this until reaching a desired area above the cutting rollers. Then they can fall from the guide down into the crushing plant or on the cutting rollers.
  • a width of the guide device may be between 30% and 70%, advantageously between 40% and 60%, of the width of the guide shaft in this direction. So just large items to be shredded can be easily absorbed to slide along on the Guide device, while small crushed material may also fall laterally past the guide directly into the cutting gap or between the cutting rollers.
  • the guide slot may have a length corresponding to the cutting gap and a width in the range of 10% to 30% of the length. In absolute terms, this can be a length of about 15 cm to 50 cm and a width of 2 cm to 15 cm.
  • a diameter of the cutting discs may be about 4 cm to 8 cm or even 10 cm. Their thickness can vary between 1 mm and 10 mm.
  • a load measurement during operation is carried out on a drive motor for the comminution plant, which advantageously drives both cutting rollers, when comminution material has been introduced. This is achieved particularly advantageously by detecting the current that the drive motor requires. Thus, it can be detected depending on the load condition of the drive motor, whether the crushing plant has grinded shredded material.
  • Such methods are known in the art from the prior art and need not be explained in detail here. It is recognized that the crushing plant has gripped a shredded material, for example after it has been automated by a light barrier or the like. has been put into operation, so it performs a conventional crushing operation.
  • the drive motor is reversed, so that it can Turning crusher in the opposite direction.
  • the direction of rotation of the cutting rollers is thus reversed compared to the working direction. This again can be done for a short time, advantageously between 0.5 second and 5 to 10 seconds.
  • the location of a crushing material or an object to be crushed which is likely already applied to the cutting rollers or resting on them, but has not yet been gripped by the teeth to be changed so that this is possible.
  • the drive motor is stopped again and the crushing unit is rotated by the drive motor again in its normal working direction.
  • the comminuted material should then advantageously have been gripped by the teeth or by the comminution unit.
  • this process can be repeated once or several times, whereby the position of the comminuted material is to be changed as much as possible each time. This repetition can be done between 2 times and 10 times. If, after a load measurement, no detection and comminution of comminution material has still been recorded, then an error message or a corresponding alternative message can be output to an operator. Then it has to remove the shredded material or otherwise try to shred it.
  • a shredding device 11 according to the invention is shown, as it can be used for example in an office or in a smaller company to crush the above-mentioned crushed material or to destroy especially the stored digital data.
  • the crushing device can be about 0.8 m to 1.5 m in size and advantageously operated on a conventional power supply.
  • the crushing device 11 has a housing 12 with a slot-like feed opening 14 with the exemplary dimensions 4 cm x 16 cm, which is long and wide enough for the intended crushing material.
  • Adjoining the feed opening 14 on the upper side of the comminution device 11 is a feed 16 with an oblique feed path 17.
  • the guide shaft 19 runs vertically here, but this need not be so. It has a width of 16 cm as the feed opening 14, which dimensions could well be twice as large.
  • a guide 21 is disposed below the feed path 17, which from the top view of Fig. 4 is better to recognize.
  • the guide 21, is looked at the bottom here, here is an elongated plate and attached to the right wall 20b of the guide shaft 19 and abuts it. It is inclined obliquely to the wall 20b right down or forms with this a kind of V-shaped groove. In its longitudinal course, it is inclined downwards in the drawing plane, which can be seen at the lower-lying free end 22.
  • a crushing plant 24 which in principle has many constructive similarities with known crushing plants or cutters of shredders mentioned above.
  • the crushing unit 24 has a drive motor 26 which, like the Fig. 4 shows left over a simplified chain shown the comminutor 24 drives in a known manner.
  • the crusher 24 has a left cutting roll 28a and a right cutting roll 28b with left cutting disks 29a and right cutting disks 29b, respectively.
  • the cutting discs 29a and 29b each have teeth 30a and 30b and provided on tooth tips tooth cutters 31a and 31b. Between two successive teeth of the same cutting disc are each recesses 33 a and 33 b, as shown in the enlarged view of Fig. 2 is clearly visible.
  • the teeth 30a and 30b are inclined in the direction of rotation or working direction of the cutting discs 29a and 29b, so that they are formed like a sawtooth or fang like.
  • Each cutting disc 29a and 29b are each provided with 14 teeth 30a and 30b. Especially the top view of the Fig.
  • scrapers 35 are provided as fixed narrow projections, namely left scraper 35 a and right scraper 35 b. These are however from the State of the art known and are to remove particles or parts of the crushed material from the annular grooves between the cutting discs 29.
  • a cutting gap 37 is shown, which is recognizable between the two cutting rollers 28a and 28b.
  • teeth 30a and 30b equal to each other, so that the cutting gap 37 is almost closed.
  • the cutting discs 29a and 29b completely cover each other, even if the recesses 33a and 33b lie precisely on a plane in which the two axes of rotation of the cutting rollers 28a and 28b lie.
  • an expected and desired path A is shown for large crushed material, for example, the aforementioned mobile terminals.
  • This path A comes from above via the feed 16 and the feed path 17 and leads through the guide 21.
  • the guide 21 By the arrangement of the guide 21 on the wall 20b, which is opposite to the feed path 17, it is ensured that such comminuted material thereof also on the guide 21 lands. The comminuted material then slips over the free end 22 of the guide device 21 into the comminution unit 24 or onto the cutting gap 37.
  • the length of the guide 21 is slightly more than half the length of the cutting gap 37 and the length of the cutting rollers 28a and 28b. Im here in the Fig.
  • the opening width at the teeth 30a and 30b is slightly larger, so that here larger objects can be better grasped and pulled into the crushing unit 24. This has already been mentioned above.
  • the purpose of the guide device 21 is therefore to ensure that large comminuted material comes as far as possible into this right area between the cutting rollers 28a and 28b and not in the left area.
  • a web B is shown for crushing material, which slides down on the feed path 17 and on the left past the guide 21 in the crushing plant 24 into it.
  • These can be, for example, memory cards or so-called SD cards, which can be gripped easily and securely by the comminution unit 24 or the cutting rollers 28a and 28b for pulling in and crushing or destroying.
  • larger mobile terminals can also be supplied in the form of tablet computers, which thus also pass the guide device 21 and pass through the comminution work 24. However, they are not introduced via the feed opening 14. For them, a movable or displaceable flap 15, on the left of the feed opening 14 is provided, pushed to the side and then the way is directly from the top of the guide 21 over into the crushing unit 24 free. For such tablet computers, the crushing is not a problem, since they are quite thin and thus are safely gripped by the cutting rollers in each area.
  • a method described above for operating the comminution device 11 according to the figures is readily conceivable with reference to the figures and need not be repeated again in detail.
  • a power supply for the drive motor 26 is an aforementioned load measurement, which is advantageously connected to a not shown here control of the crushing device 11 for the drive motor 26.
  • microswitches or the like can advantageously be detected via photocells, when comminution material has been introduced, alternatively also at the displaceable flap 15. Then the drive motor 26 can be started and the cutting rollers 28a and 28b the crushing unit 24 in the working direction, as in Fig. 2 located, offset.
  • the process of reversing the direction of rotation takes place for a short time.
  • the material to be comminuted is to change its position or its contact with the cutting rollers 28a and 28b or the teeth 30, so that when the direction of rotation is reversed in the working direction, gripping takes place.
  • the process of reversing the direction of rotation is repeated, possibly also several times as previously explained.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP17152106.5A 2016-01-20 2017-01-19 Dispositif de broyage et procédé de fonctionnement d'un tel dispositif de broyage Active EP3195934B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016200756.4A DE102016200756A1 (de) 2016-01-20 2016-01-20 Zerkleinerungsvorrichtung und Verfahren zum Betrieb einer solchen Zerkleinerungsvorrichtung

Publications (2)

Publication Number Publication Date
EP3195934A1 true EP3195934A1 (fr) 2017-07-26
EP3195934B1 EP3195934B1 (fr) 2019-01-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17152106.5A Active EP3195934B1 (fr) 2016-01-20 2017-01-19 Dispositif de broyage et procédé de fonctionnement d'un tel dispositif de broyage

Country Status (3)

Country Link
US (1) US20170203301A1 (fr)
EP (1) EP3195934B1 (fr)
DE (1) DE102016200756A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107537652B (zh) * 2016-06-29 2020-10-27 上海震旦办公设备有限公司 具有清除卡纸功能的碎纸机
CN110976015A (zh) * 2019-12-09 2020-04-10 九江鸿立食品有限公司 一种高效颗粒破碎机
US11673144B1 (en) * 2022-06-13 2023-06-13 Samuel Messinger Embassy portable electronic device shredder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4669673A (en) * 1984-09-04 1987-06-02 John W. Wagner Apparatus for cutting disposable containers
WO1995013139A1 (fr) * 1993-11-12 1995-05-18 Environmental Products Corporation Assemblage pour la decoupe de recipients
US5556039A (en) * 1994-10-28 1996-09-17 Nissei Plastic Industrial Co., Ltd. Crushing machine apparatus and a method for cleaning the crushing machine apparatus
DE19912036A1 (de) 1999-03-17 2000-09-21 Schleicher & Co Int Zerkleinerungsvorrichtung für Datenträgerscheiben und Entsorgungssystem dafür
DE10008442A1 (de) 2000-02-23 2001-08-30 Schleicher & Co Int Ag Zerkleinerungsvorrichtung, insbesondere zur Zerkleinerung von Datenträgern
WO2003033153A1 (fr) * 2001-10-11 2003-04-24 Dahle Bürotechnik Gmbh Destructeur de documents a coupe transversale

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Publication number Priority date Publication date Assignee Title
US3058676A (en) * 1960-02-23 1962-10-16 Charles E Hermann Rock crusher
DE3444709C2 (de) * 1984-12-07 1996-05-30 Gao Ges Automation Org Vorrichtung zum Vernichten von Banknoten
JP3226107B2 (ja) * 1991-07-22 2001-11-05 株式会社栗本鐵工所 ロータ剪断式破砕機
US5232168A (en) * 1992-03-30 1993-08-03 Engineered Systems, Inc. Apparatus and method for separating recyclable material from waste material
DE29501067U1 (de) * 1995-01-24 1996-05-23 Weima Apparatebau GmbH, 74360 Ilsfeld Zerkleinerungsmaschine
US8616481B2 (en) * 2008-11-01 2013-12-31 Ronald Dean Carpenter Material conditioner with replaceable teeth

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4669673A (en) * 1984-09-04 1987-06-02 John W. Wagner Apparatus for cutting disposable containers
WO1995013139A1 (fr) * 1993-11-12 1995-05-18 Environmental Products Corporation Assemblage pour la decoupe de recipients
US5556039A (en) * 1994-10-28 1996-09-17 Nissei Plastic Industrial Co., Ltd. Crushing machine apparatus and a method for cleaning the crushing machine apparatus
DE19912036A1 (de) 1999-03-17 2000-09-21 Schleicher & Co Int Zerkleinerungsvorrichtung für Datenträgerscheiben und Entsorgungssystem dafür
DE10008442A1 (de) 2000-02-23 2001-08-30 Schleicher & Co Int Ag Zerkleinerungsvorrichtung, insbesondere zur Zerkleinerung von Datenträgern
WO2003033153A1 (fr) * 2001-10-11 2003-04-24 Dahle Bürotechnik Gmbh Destructeur de documents a coupe transversale

Also Published As

Publication number Publication date
US20170203301A1 (en) 2017-07-20
EP3195934B1 (fr) 2019-01-02
DE102016200756A1 (de) 2017-07-20

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