EP0760257A1 - Schervorrichtung für verschiedenartige Körper - Google Patents

Schervorrichtung für verschiedenartige Körper Download PDF

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Publication number
EP0760257A1
EP0760257A1 EP96401735A EP96401735A EP0760257A1 EP 0760257 A1 EP0760257 A1 EP 0760257A1 EP 96401735 A EP96401735 A EP 96401735A EP 96401735 A EP96401735 A EP 96401735A EP 0760257 A1 EP0760257 A1 EP 0760257A1
Authority
EP
European Patent Office
Prior art keywords
notch
box
axis
edge
scraper plate
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
EP96401735A
Other languages
English (en)
French (fr)
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EP0760257B1 (de
Inventor
Didier Kuczer
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0760257A1 publication Critical patent/EP0760257A1/de
Application granted granted Critical
Publication of EP0760257B1 publication Critical patent/EP0760257B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • the present invention relates to devices for shearing and shredding bodies of different nature, such as plastic bottles, wooden boards, stacks of cardboard or paper, metal objects, etc., for example, compact them better and then ship them to storage and / or recycling locations.
  • Figures 1 to 3 show in particular two embodiments of such a device known from the prior art.
  • such a device schematically comprises a box 1 comprising two opposite openings which are respectively substantially in horizontal planes when the device is in operation.
  • this box 1 are respectively mounted on two shafts 2, 3 two stacks 4, 5 which will be described below.
  • the shafts 2, 3 are mounted in rotation in the box around respectively two axes 6, 7 parallel and distant from each other by a value "d".
  • On each shaft is disposed a stack comprising a plurality of shear discs 8 and a plurality of spacer rings 9, each spacer ring being disposed between two consecutive shear discs.
  • the elements of each stack are secured to the corresponding shaft, by any means, in particular by keying or the like.
  • all the shear discs are identical, as are all of the spacer rings, the discs and the rings more advantageously having the same thickness.
  • a shear disc 8 can take different forms but it is generally produced, in this type of device, in a plate of constant thickness and essentially comprises two parts, a first central part 10 of cylindrical shape of revolution and at least a second part made up by a protrusion 11 terminated by a cutting end 12, this second part being located on the edge of the first part 10.
  • the radius of the first part is advantageously determined so that it is substantially equal, for example, to "0, 7 d "and the distance" h "separating the point of prominence furthest from the axis of revolution of the central part 10 is less than" d ".
  • the spacer rings 9 are also of cylindrical shape of revolution and their radius is at most equal to "d - h".
  • the association of the discs and the rings defines a plurality of circular grooves 13 whose side walls are constituted by the two opposite faces of two consecutive shear discs 8 separated by a ring 9, and the bottom of which is constituted by the edge 32 of this ring.
  • FIG. 3 represents, seen from above, the association of two stacks 4, 5 in the box 1 and illustrates the manner in which the two stacks cooperate with each other.
  • These two emerging ends 14, 15 are coupled to motor means for driving in rotation 17 advantageously constituted by a motor, by example of an electrical type, the output shaft of which is connected by a gear system to the two emerging ends 14, 15.
  • the gear system is advantageously designed so that, for a given speed of rotation of the shaft output of the engine, the two stacks 4, 5 rotate at different speeds, one at a speed equal for example twice that of the other.
  • the two stacks 4, 5 rotate in opposite directions so that, when they fall into the box on these two stacks, the bodies to be shredded are entrained in the space 25, at the point where they intersect. the cutting parts 12 of the shear discs 8 of the two stacks, and are thus sheared and shredded.
  • the two walls 18, 19 of the box are very close to the stacks and, on the other hand, the device also includes scraper plates 20.
  • scraper plates 20 consist of parts of generally substantially triangular shape, or similar to a triangular shape, and of a thickness substantially equal to that of the spacer rings 9.
  • Each scraper plate comprises, at a vertex of the triangular shape, a concave cylindrical notch of revolution 21 whose radius is substantially equal to that of the spacer rings 9 .
  • scraper plates are arranged in the grooves 13 so that the notch 21 of each scraper plate matches the edge 32 of the ring 9 and are mounted in association with the box 1 so that they close the defined spaces 22 as much as possible. above.
  • FIGS. 1 and 2 represent a part of a device according to the prior art illustrating the cooperation between the scraper plates 20, the box 1 and a stack, in this case the stack 5 with reference to FIG. 3.
  • the scraper pieces 20 are mounted on rods 23 substantially parallel to the axes 6, 7 of the rotation shafts 2, 3, the ends of these rods being integral with two other opposite walls 16 and 24 of the box 1.
  • the scraper plates 20 are mounted on slides 26 integral with the wall 19 of the box 1.
  • the rods 23 and the slides 26 are equivalent means and are only given to illustrate the prior art .
  • a shear disc 8 is threaded for example on the shaft 2, a ring 9 on the shaft 3 and a scraper piece 20 on the rods 23 located near the wall 19, these three elements being substantially located in the same foreground.
  • a ring 9 is threaded onto the shaft 2, a shear disc 8 on the shaft 3 and a scraper plate 20 on the rods 23 located near the wall 18, these three elements being substantially located in a same second plane parallel to the first.
  • the operations described above are carried out alternately for the first step and for the second, until the assembly is obtained as illustrated in FIG. 3.
  • the end of the assembly consists in replacing the wall 24 of the box 1.
  • a device as described above can be used to shear many bodies of different nature. Before using the device, in particular for the purpose of then recycling certain materials from which the objects to be sheared are made, it is therefore necessary to clean it, especially if it has been previously used for the grinding of objects made of a different material.
  • the object of the present invention is to provide a device for shearing bodies of different nature, which largely overcomes the drawback mentioned above.
  • FIG. 3 makes it possible to explain the characteristics common to the structure of the device according to the prior art and to that of the device according to the invention. Consequently, if necessary for its understanding, the following description, of an example of implementation of the invention, can also refer to this FIG. 3, as well as to FIGS. 1 and 2.
  • FIG. 4 this represents an embodiment of part of a device according to the invention, the complete device deducing from this representation, from that of FIG. 3, from the description above relating to a device according to the prior art and the description below.
  • the device illustrated comprises, a box 1, at least one shaft 3 mounted to rotate in the box around a rotation axis 7 (6) located at a given distance 100 from a part of wall 19 of the box, at least one shear disc 8 mounted centered on the shaft 3, at least one spacer ring 9 having a general shape cylindrical of revolution, this ring being mounted centered on the shaft 3 and substantially in contact with one face of the shear disc 8, and at least one scraper plate 20.
  • the complete device can comprise, on the shaft 3, a plurality of elements such as the shear discs 8 and the spacer rings 9 mounted in a stack like the stack 5, with which are associated scraper plates 20 as described below.
  • a device advantageously comprises, although this is not essential, a second stack like the stack 4 described with reference to FIG. 3.
  • the shear discs 8 can take different forms, for example that of circular saws but more advantageously a shape as described above, that is to say with a prominence 11 terminated by a cutting part 12.
  • the scraper plates 20 have a general shape substantially inscribed in a triangle 30 (or similar). They have a thickness at most equal to the thickness of the spacer rings 9 and comprise, substantially at a vertex 31 of the triangle 30, a notch 21 of concave cylindrical shape of revolution of the same radius as the spacer rings 9. It is further provided in the device, means for mounting each scraper plate 20 in association with the box 1 so that the notch 21 is substantially in contact with the edge 32 of the spacer ring 9 and that the axis of revolution 33 of the notch 21 is substantially coincident with the axis 7 of the rotation shaft 3.
  • FIG. 5 represents, in the form of a diagram making it possible to define its structure, an insulated scraper plate 20.
  • each scraper plate 20 essentially comprises two first 34 and second 35 sectors separated by an imaginary plane 36 containing the axis of revolution 33 of the notch 21 and cutting the side 37 of the triangle opposite the apex 31 on which this notch is made.
  • all the points 38 of the edge of the first sector 34 are at a distance from the axis of revolution 33 of the notch 21 at most equal to the given distance 100, FIGS. 4 and 6, which therefore represents the minimum distance separating the axis of rotation 7 (6) and the wall part 19 (18) of the box 1.
  • At least one point on the edge of the second sector 35 is at a distance distance greater than this given distance 100.
  • the scraper plates 20 are designed so that, when they are in the operational position, the part 41 of the edge of their second sector 35 comes into contact with the wall 19 of the box 1.
  • This characteristic is particularly advantageous because it gives the device better rigidity when operating. Indeed, by pressing against this wall 19 of the box and by maintaining the spacer rings 9, the scraper plates 20 help to keep the two rotation shafts 2 and 3 perfectly parallel during the shearing of the bodies.
  • the two edge parts 40 and 41, respectively of the first sector 34 and the second sector 35, corresponding to the side 37 of the triangle 30 opposite the vertex 31 on which the notch 21 is produced, are in continuity with one another, as illustrated in FIGS. 4 to 6.
  • the means for mounting the scraper plate 20 in association with the casing 1 are constituted by at least one rod 23 parallel to the axis of rotation 7 (6) which crosses the scraper plate 20 by a breakthrough 45, and by means of bearings made in the box. These bearings are for example made in the wall of the box by crossing it, so that the rod 23 can be easily removed by sliding it parallel to itself through the wall of the box and the scraper plates 20. These bearings do not have no difficulty in implementation for a person skilled in the art and will not be described more fully here.
  • the device further comprises at least one bar 50 mounted in association with the box 1.
  • This bar 50 is substantially parallel to the axis of rotation 7, (6) and it is located at a distance from this axis of rotation 7 (6) slightly greater than the distance separating the point of the shear disc 8 furthest from the axis of rotation 7 (6) and in the space 51 delimited by the edge 52 (or the edge) of the shear disc 8 and the part 53 of the edge of the first sector 34 corresponding to the side 54 of the triangle 30 starting from the apex 31 on which the notch 21 is made, FIGS. 4 and 5.
  • the point of this shear disc furthest from the axis 7 (6) is the apex 59 of the cutting end 12.
  • bearings to hold the bar 50. These bearings are made in the wall of the box by crossing it so that the bar 50 can be easily removed by sliding it parallel to itself through the wall of the box . These bearings do not present any implementation difficulty for a person skilled in the art and will not be described more fully here.
  • the bar 50 is mounted in association with the box 1 so that it is in contact with the part 53 of the edge of the first sector 34 corresponding to the side 54 of the triangle 30 starting from the apex 31, when the scraper plate 20 is in its operational position as shown in FIG. 4. As illustrated in FIGS. 4 and 6, it is more advantageous that this bar is at least partially located in a groove 55 produced in the part 53 of the edge of the first sector 34 corresponding to side 54 of triangle 30 defined above.
  • the bar 50 constitutes a means of abutment and holding for the positioning of the scraper plates 20, as explained below, but it can also help in the shearing of the pieces of body which have already been shredded when passing through them. space 25 between the two stacks 4 and 5.
  • an edge of the bar for example that which is closest to the shear disc 8, is substantially shaped in part cutting. This blade shape has not been particularly shown in the figures because it is well known in itself. It has for example the same shape as that of the cutting ends 12 which are located on the shear discs 8.
  • the device according to the invention operates in the same way as those of the prior art. Its operation will therefore not be described more fully here.
  • the bar 50 can also be removed by sliding it parallel to itself on its bearings, if only to facilitate cleaning. However, it is advantageous for it to be replaced first, before the scraper plates 20, so that the grooves 55 of the scraper plates are positioned around it, as visible in FIGS. 4 and 6. Each scraper plate 20 is thus well maintained between two consecutive shear discs 8, against the bottom of the groove 13 and on the bar 50, until the rods 23 are replaced by passing through all the holes 45 and locked in their end bearings.
  • the main advantage of the device according to the invention is readily apparent, namely that its structure greatly facilitates the operations for cleaning it before its use for shearing and shredding bodies made of a material different from the material previously treated, the time saved for such cleaning being very important compared to the devices of the prior art.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP19960401735 1995-08-25 1996-08-06 Schervorrichtung für verschiedenartige Körper Expired - Lifetime EP0760257B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9510109A FR2737979B1 (fr) 1995-08-25 1995-08-25 Dispositif pour cisailler des corps de differente nature
FR9510109 1995-08-25

Publications (2)

Publication Number Publication Date
EP0760257A1 true EP0760257A1 (de) 1997-03-05
EP0760257B1 EP0760257B1 (de) 2000-05-17

Family

ID=9482102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960401735 Expired - Lifetime EP0760257B1 (de) 1995-08-25 1996-08-06 Schervorrichtung für verschiedenartige Körper

Country Status (3)

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EP (1) EP0760257B1 (de)
DE (1) DE69608376T2 (de)
FR (1) FR2737979B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997197A1 (de) 1998-10-30 2000-05-03 Didier Kuczer Auf eine polygonale Welle aufschiebbares Messer für eine Zerkleinerungsvorrichtung mit rotierenden Scheren und Zerkleinerungsvorrichtung mit einem solchen Messer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2796864A1 (fr) 1999-07-27 2001-02-02 Innodex Ind Dispositif et procede pour traiter mecaniquement des cartons ou papiers a plat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1558423A (en) * 1978-03-03 1980-01-03 Dresser Europe Sa Shredding machine
WO1993016803A1 (en) * 1992-02-21 1993-09-02 Tilby Sydney E Improved slitting apparatus for sugarcane rind
EP0667187A1 (de) * 1994-02-11 1995-08-16 PRECIMECA Société Anonyme Müllzerkleinerer mit, mit dem Gehäuse verbundenen, externen Lagern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1558423A (en) * 1978-03-03 1980-01-03 Dresser Europe Sa Shredding machine
WO1993016803A1 (en) * 1992-02-21 1993-09-02 Tilby Sydney E Improved slitting apparatus for sugarcane rind
EP0667187A1 (de) * 1994-02-11 1995-08-16 PRECIMECA Société Anonyme Müllzerkleinerer mit, mit dem Gehäuse verbundenen, externen Lagern

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997197A1 (de) 1998-10-30 2000-05-03 Didier Kuczer Auf eine polygonale Welle aufschiebbares Messer für eine Zerkleinerungsvorrichtung mit rotierenden Scheren und Zerkleinerungsvorrichtung mit einem solchen Messer
FR2785203A1 (fr) 1998-10-30 2000-05-05 Didier Kuczer Couteau pour broyeur dechiqueteur a cisailles rotatives apte a etre enfile sur un arbre a section transversale de forme polygonale reguliere et broyeur comportant un tel couteau

Also Published As

Publication number Publication date
FR2737979A1 (fr) 1997-02-28
DE69608376D1 (de) 2000-06-21
EP0760257B1 (de) 2000-05-17
FR2737979B1 (fr) 1997-11-07
DE69608376T2 (de) 2001-01-04

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