EP0516642B1 - Cisaille a roulettes de coupe - Google Patents

Cisaille a roulettes de coupe Download PDF

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Publication number
EP0516642B1
EP0516642B1 EP91903351A EP91903351A EP0516642B1 EP 0516642 B1 EP0516642 B1 EP 0516642B1 EP 91903351 A EP91903351 A EP 91903351A EP 91903351 A EP91903351 A EP 91903351A EP 0516642 B1 EP0516642 B1 EP 0516642B1
Authority
EP
European Patent Office
Prior art keywords
cutter
rotary
annular
hub part
hub
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
EP91903351A
Other languages
German (de)
English (en)
Other versions
EP0516642A1 (fr
Inventor
Adolf Mayer
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.)
Reinhardt Maschinenbau GmbH
Original Assignee
Reinhardt Maschinenbau 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 Reinhardt Maschinenbau GmbH filed Critical Reinhardt Maschinenbau GmbH
Priority to AT9191903351T priority Critical patent/ATE104895T1/de
Publication of EP0516642A1 publication Critical patent/EP0516642A1/fr
Application granted granted Critical
Publication of EP0516642B1 publication Critical patent/EP0516642B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B26D7/2621—Means for mounting the cutting member for circular cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2657—Auxiliary carriages for moving the tool holders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6587—Including plural, laterally spaced tools
    • Y10T83/6588—Tools mounted on common tool support
    • Y10T83/659—Tools axially shiftable on support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/7822—Tool pair axially shiftable
    • Y10T83/7826—With shifting mechanism for at least one element of tool pair
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/783—Tool pair comprises contacting overlapped discs
    • Y10T83/7843—With means to change overlap of discs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/7847—Tool element axially shiftable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7872—Tool element mounted for adjustment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9377—Mounting of tool about rod-type shaft

Definitions

  • the invention relates to a roller shear according to the preamble of claim 1.
  • each knife shaft is surrounded by a sleeve on which the roller knives can be axially positioned.
  • the sleeve can be stretched by means of a hydraulic medium introduced between the knife shaft and the sleeve, as a result of which the roller knives can be clamped on the knife shaft.
  • the manipulator of the known roller shears is designed so that the roller knives of the lower knife shaft can only be adjusted with the entrainment of the roller knives on the upper knife shaft and the manipulator must individually perform a stroke movement of the roller knives on the upper knife shaft in order to move from the roller knives of the lower Knife shaft to get free. This makes the positioning of the roller knives on their knife shafts time-consuming and cumbersome.
  • the roller shear 1 shown schematically in Figure 1 comprises a machine frame 2 with two knife shafts 5, 6 rotatably mounted in stands 3, 4 of this frame.
  • the knife shafts are adjustable relative to each other in a manner yet to be described, so that their mutual distance can be set.
  • the lower cutter shaft 6 (in FIG. 1) can be driven directly via a pulley 7 in a known manner by a motor (not shown) accommodated in the machine frame 2.
  • Roller knives 14 are arranged on the knife shafts 5 and 6 and rotate together with the knife shafts.
  • the roller knives can be positioned and clamped in the desired manner on the knife shafts 5, 6 in a manner to be described. Since the roller knives of the one knife shaft are very closely adjacent to those of the other knife shaft in the final state, the two knife shafts 5 and 6 are separated from one another in the manner described during the positioning of the roller knives on their knife shafts. After positioning has been carried out, the two cutter shafts 5, 6 are brought closer to one another again.
  • roller knives 14 on the left are arranged on their knife shafts 5, 6 in pairs opposite one another, so that a correspondingly wide sheet metal strip or a correspondingly wide sheet metal plate can be divided into three strips of different widths, the strip width in each case being the distance between the roller blades 14 corresponds to their knife shafts 5, 6.
  • the two roller knives 14 arranged on the far right in FIG. 1 on the knife shafts 5, 6 are out of operation. They can be put into operation if, for example, a sheet metal strip is to be divided into more than three strips.
  • the roller shear 1 also includes, as well 1 shows a manipulator 15, by means of which the roller knives 14 can be individually and independently positioned and clamped on their knife shafts 5, 6.
  • the manipulator can be pushed back and forth parallel to the knife shafts 5 and 6 with the aid of a sliding guide 20 running horizontally along the machine frame 2.
  • the manipulator 15 is driven via a screw spindle 16 which engages in a corresponding nut 17 of the manipulator 15.
  • the screw spindle 16 can be driven in either direction of rotation by a motor 18 arranged in the machine frame 2.
  • the mentioned slide guide 20, on which the manipulator 15 is displaceable is indicated schematically.
  • the manipulator has a frame 19 which surrounds both knife shafts 5, 6 and the roller knives 14 seated on them in a ring.
  • a total of four slides 21 are provided in pairs in the frame 19 of the manipulator 15, which have concavely curved cutting edges 22 with which they can engage positively and without play in corresponding grooves 23 of the roller knives 14.
  • Each two opposing slides 21 are assigned to a knife shaft 5 or 6 and the roller knives 14 arranged thereon.
  • the slides 21 are horizontally displaceably mounted in the frame 19 and can be moved by remote-controlled hydraulic or pneumatic cylinders 24 so that their cutting edges 22 either engage in the grooves 23 of the roller knives 14 or are pulled out of them.
  • fingers 25 are furthermore displaceably mounted on both sides of the slide, which can be advanced or retracted remotely with the aid of working cylinders 26 with reference to the roller knives 14. These fingers 25 are used in a manner to be described to actuate the clamping means, with the aid of which the roller knives 14 can be clamped on their knife shafts 5, 6 or released from them.
  • FIG. 5 shows the structure of a roller knife 14 in a first embodiment with mechanically acting clamping means.
  • a feather key 32 is displaceable.
  • the feather key 32 is firmly connected by screws 33 to a hub part 34 surrounding the knife shaft 5. In this way, the hub part 34 is held on the knife shaft 5 in a rotationally fixed but axially displaceable manner.
  • Knife part 36 and lifting part 37 with the lifting ring 38 are thus arranged together with the hub part 34 in a rotationally fixed manner on the knife shaft 5, but are axially displaceable on this shaft
  • the knife shaft 5 is enclosed by an annular part 41 which partially extends over the hub part 34.
  • the ring part 41 is freely rotatable on the knife shaft 5.
  • a set screw 42 which engages in a corresponding annular groove 43 of the hub part 34, prevents axial movement of the ring part 41 relative to the hub part 34 and thus ensures the cohesion of these two parts.
  • the outer circumferential surface 44 of the hub part 34 and the inner circumferential surface 45 of the ring part 41 overlapping this surface 44 are eccentric to the central axis of the knife shaft 5.
  • the inner peripheral surface 46, with which the ring part 41 is seated on the knife shaft 5, is circular-cylindrical and concentric with the central axis of this shaft.
  • stop blocks 48 which protrude beyond the outer circumferential surface 49 of the ring part 41 and with the above part stop surfaces for those already in connection with Figures 3 and 4 mentioned fingers 25 of the manipulator 15 form.
  • the stop blocks 48 are also drawn with their radially directed stop surfaces. It can be seen in FIG. 4 how the finger 25 located there on the right abuts the stop surface of the stop block 48 and thereby prevents the relevant ring part 41 from rotating in a certain direction of rotation.
  • the two fingers 25 are each so far away from the slide 21 that whenever the concave cutting edge 22 of the slide engages in the groove 23 of a roller knife 14, a finger 25 on the stop block 48 of this knife associated ring part 41 can attack. If, in FIG. 4, the slider 21 with its cutting edge 22 engages in the groove 23 of the roller knife 14 on the left, the finger 25 on the left in this figure could come into engagement with the stop block 48 of the left roller knife 14.
  • all roller knives 14 can be positioned individually and independently of one another on their knife shafts 5, 6 by the manipulator 15 in the following manner: with knife shafts 5, 6 (slider 13 in FIG. 2) which are spaced apart from one another, the manipulator 15 is positioned in front of a specific one on the upper or lower knife shaft 5 or 6 seated Roller knife 14 brought up, initially assuming that this roller knife is not clamped on its knife shaft. Then the two slides 21 assigned to the relevant knife shaft are advanced so that they engage in the groove 23 of the roller knife 14. Then, by means of a corresponding remote-controlled displacement of the manipulator on its sliding guide with the aid of the screw spindle 16, the roller knife 14 now taken along by the manipulator is positioned at the desired point on the knife shaft.
  • clamping means described in connection with FIG. 5 act due to the eccentricity described Circumferential surfaces 44, 45 purely mechanically.
  • clamping devices which act hydraulically are described in connection with FIGS. 6 and 7.
  • a roller knife 14 comprises a clamping sleeve 51 which surrounds the associated knife shaft (not shown in FIGS. 6 and 7).
  • the clamping sleeve 51 has on one side a radially projecting end wall 52 from the knife shaft.
  • a hub part 53 is pushed onto the clamping sleeve 51, which has a recessed annular space 54 filled with hydraulic medium on its inner circumferential surface facing the sleeve 51.
  • Sealing rings 55 are arranged on both sides of the annular space 54 between the sleeve 51 and the hub part 53.
  • a feather key 56 which is fastened with a screw 57 to the end wall 52 of the sleeve 51 and to the hub part 53, projects into a corresponding groove running axially on the outside of the associated knife shaft, which corresponds to the groove 31 in FIG.
  • the feather key 56 thus holds the clamping sleeve 51 and the hub part 53 in a rotationally fixed but axially displaceable manner on the knife shaft.
  • a ring part 58 is rotatably seated, which is prevented from axially displacing relative to the hub part 53 by a radially projecting ring 59 connected to the latter and by a step 61 on the hub part 53.
  • the hub part 53 has radially running bores 62 which are connected to the annular space 54 and in which the pistons 63 can be moved in a sealed manner.
  • the heads of the pistons 63 protrude beyond the circular cylindrical, outer circumferential surface of the hub part 53.
  • the bores 62 like the annular space 54, are filled with hydraulic medium. Accordingly, if one or if several of the pistons 63 are moved radially inwards in the bores 62, the hydraulic pressure in the annular space 54 increases.
  • the clamping sleeve 51 is accordingly pressed together and clamped on the knife shaft enclosed by it. Since the clamping sleeve 51 is firmly connected to the hub part 53, the entire roller knife can be clamped in a desired position on the knife shaft in this way.
  • the hub part 53 has a step-shaped recess which is open towards the right and in which, in the manner shown in FIG. 5, a knife part 36 and a lifting part 37 with a lifting ring 38 can be firmly arranged, which is not the case in FIG. 6 is shown specifically.
  • the ring part 58 In order to move the pistons 63 in the hub part 53 radially inwards in order to increase the hydraulic pressure in the annular recess 54, the ring part 58, as can best be seen from FIG. 7, has inner surfaces 60 which extend eccentrically to the central axis of the knife shaft in such a way that with a corresponding rotation of the ring part 58 relative to the outside of the circular cylindrical hub part 53 (to the right in FIG. 7), the inner distance between the inner surface 60 and the hub part 53 becomes smaller, as a result of which the piston 63 is forced into its bore by the inner surface 60 acting on the piston head 62 is pressed inwards.
  • the piston 63 is displaced in its bore 62 due to the described eccentric inner surface 60 of the ring part 58 and the arrangement on the knife shaft is clamped due to the hydraulic pressure thereby increasing . If the rotation takes place in the opposite direction, the piston 63 is displaced radially outwards by the prevailing hydraulic pressure during a relative rotation between the hub part 53 and the ring part 58, so that the tension is released and the roller knife 14 can now be axially displaced on its knife shaft.
  • the hub parts 34, 53 and ring parts 41, 58 project axially on one side over the knife part 36 and the lifting ring 38.
  • the arrangement of knife part 36 and lifting ring 38 can be made such that either knife part 36 or lifting ring 38 is adjacent to the hub or ring part.
  • a total of six roller knives 14 on the upper knife shaft 5 and the lower knife shaft 6 are arranged as close as possible to one another, the respective roller knives 14 abutting each other.
  • the arrangement on each knife shaft is such that the ring part 41 alternately adjoins a knife part 36 and a lifting ring 38, respectively on the upper shaft 5 each knife part 36 and lifting ring 38 are arranged reversed, as on the lower knife shaft 6.
  • All ring parts 41 are directed in the same direction (to the right).
  • a sheet metal strip is divided using the roller knives at the adjacent edges of a lower and upper knife part 36.
  • the same minimum strip width can be achieved, which is indicated by dimension A.
  • the roller knife arrangement according to FIG. 9 differs from that according to FIG. 8 in that the ring parts 41 are directed alternately towards different sides, but in each case on the knife shaft 5 always lifting rings 38 on the ring parts 41 and on the knife shaft 6 always knife parts 36 on the Connect ring parts. With this arrangement of the roller knives there are alternating different strip widths, the dimensions of which are indicated by B and C in FIG. 9. B is smaller, C is larger than A. A can be, for example, 73, B 40.5 and C 106 mm.
  • both cutter shafts 5, 6 are driven because of the gear wheels 11, 12 acting between them. In principle, it is sufficient to drive only one of the knife shafts 5 or 6. When inserting a sheet between the roller knives, the other knife shaft and the roller knives sitting on it are inevitably taken along.
  • all roller knives 14 can be clamped individually and independently on the knife shaft by the clamping means described, namely once by the eccentric peripheral surfaces 44, 45 and on the other hand by the hydraulically actuated clamping sleeve 51, for which purpose the manipulator 15 is also used.
  • roller shear described is assigned a programmable computer in a manner known per se and therefore not specifically illustrated and described, which computer records all the rotary and displacement movements of the parts described, in particular the knife shafts 5, 6, the manipulator 15, the slide 21 and the fingers 25 controls and in which the respective positions of the roller knives are stored, so that any preselectable positions of the roller knives can be set.

Claims (8)

  1. Cisaille circulaire (1) destinée à diviser des bandes ou feuilles de tôle en plusieurs bandes ou feuillards, comprenant un bâti (2) de machine, deux arbres (5, 6) porte-lames tourillonnés dans le bâti de machine qui sont réglables en écartement relatif, et dont au moins un est entraîné, des lames circulaires (14) pouvant être directement positionnées axialement sur ces arbres porte-lames, un manipulateur (15) unique, pouvant se déplacer en translation sur le bâti de la machine, parallèlement aux arbres porte-lames, pour effectuer le positionnement axial des lames circulaires sur leur arbre porte-lames, et des moyens de serrage (44, 45 ; 51) déverrouillables, qui agissent entre les arbres porte-lames et les lames circulaires pour bloquer toutes les lames circulaires sur les arbres porte-lames dans des positions prédéterminées, caractérisée en ce que :
    - chaque lame circulaire (14) peut être positionnée individuellement sur l'arbre porte-lames (5, 6), indépendamment des autres lames circulaires, par translation du manipulateur unique (15) ;
    - les lames circulaires (14) peuvent être bloquées individuellement sur l'arbre porte-lames (5, 6), indépendamment les unes des autres, par les moyens de serrage (44, 45; 51), et les moyens de serrage (44, 45 ; 51) peuvent être actionnés par le manipulateur unique (15) qui peut être positionné en conséquence par translation, et dans laquelle
    - chaque lame circulaire (14) comprend une partie moyeu (34 ; 53) assemblée à une partie lame (36) proprement dite, et montée solidairement en rotation mais mobile en translation axiale sur l'arbre porte-lames associé (5, 6),
    - la partie moyeu (34 ; 53) est au moins partiellement emboîtée par sa surface circonférentielle extérieure, dans une partie anneau (41 ; 58),
    - la partie moyeu (34 ; 53) peut être bloquée sur l'arbre porte-lames (5, 6) à l'encontre de la translation axiale par une rotation relative par rapport à la partie anneau (41 ; 58), et
    - le manipulateur (15) présente des moyens (25) servant à immobiliser la partie anneau (41 ; 58) de telle manière que, lorsqu'on fait tourner l'arbre porte-lames (5, 6), la partie moyeu (34 ; 53) peut tourner par rapport à la partie anneau.
  2. Cisaille circulaire selon la revendication 1, caractérisée en ce que, dans le manipulateur (15), sont prévues deux paires de coulisseaux (21) télécommandés mutuellement opposés, qui sont associées chacune à un arbre porte-lames (5, 6), et en ce que les coulisseaux (21) peuvent être appliqués par paires, de l'extérieur et sans jeu, contre les lames circulaires (14) de telle manière que, lors de la translation du manipulateur (15), les lames circulaires (14), soient entraînées en translation axiale sur les arbres porte-lames (5, 6).
  3. Cisaille circulaire selon la revendication 2, caractérisée en ce que les coulisseaux (21) sont engagés dans une gorge (23), de profil correspondant, prévue sur le pourtour extérieur des lames circulaires (14), en établissant une liaison par correspondance de formes.
  4. Cisaille circulaire selon la revendication 1 ou 2, caractérisée en ce que chaque lame circulaire (14) comprend une partie moyeu (34) assemblée à une partie lame (36) proprement dite, et montée solidairement en rotation mais mobile en translation axiale sur l'arbre porte-lames associé (5, 6), en ce que la partie moyeu (34) est au moins partiellement emboîtée, par sa surface circonférentielle extérieure, par une partie anneau (41), et en ce que, dans la région de l'emboîtement, sont prévues, sur la partie moyeu et sur la partie anneau, des surfaces cylindriques (44, 45) excentrées par rapport à l'axe de rotation de l'arbre porte-lames (5, 6) et qui s'engagent l'une dans l'autre, de telle manière qu'en réponse à une rotation relative de la partie moyeu (34) par rapport à la partie anneau (41), la partie moyeu (34) et, avec elle la partie lame (36) soient bloquées sur l'arbre porte-lames (5, 6) à l'encontre de la translation axiale.
  5. Cisaille circulaire selon la revendication 1 ou 2, caractérisée en ce que chaque lame circulaire (14) comprend une partie moyeu (53) assemblée à une partie lame (36) proprement dite et montée solidairement en rotation mais mobile en translation axiale sur l'arbre porte-lames assoicé (5, 6), en ce que la partie moyeu (53) est au moins partiellement emboîtée par sa surface circonférentielle extérieure, dans une partie anneau (58), en ce que, contre la surface circonférentielle intérieure de la partie moyeu (53), entre l'arbre porte-lames (5, 6) et cette partie moyeu, un manchon de serrage (51) est relié solidairement en rotation à ladite partie moyeu, en ce qu'entre le manchon de serrage (51) et la partie moyeu (53) est formée une chambre annulaire (54) hermétiquement fermée, pour recevoir un milieu hydraulique sous l'action duquel le manchon de serrage (51) et, avec lui, la partie moyeu (53) peuvent être bloqués sur l'arbre porte-lames (5, 6), en ce que, dans la partie moyeu (53), est formé, dans une direction sensiblement radiale, au moins un alésage cylindrique (62) qui communique avec la chambre annulaire (54) et dans lequel peut coulisser un piston (63) possédant une tête de piston qui fait saillie au-delà de la surface circonférentielle extérieure de la partie moyeu (53), et en ce que la surface circonférentielle intérieure de la partie anneau (58) dans laquelle vient s'emboîter la surface circonférentielle extérieure de la partie moyeu (53), s'étend excentriquement par rapport à l'axe de rotation de l'arbre porte-lames (5,6), et la tête du piston (63) est en appui contre cette surface excentrique, de sorte qu'en réponse à une rotation relative de la partie moyeu (53) par rapport à la partie anneau (58), le piston (63) est repoussé dans l'alésage cylindrique (62) et que la pression du milieu hydraulique est ainsi modifiée.
  6. Cisaille circulaire selon la revendication 4 ou 5, caractérisé en ce qu'il est prévu sur le manipulateur (15), dans la région de chacun des arbres porte-lames (5, 6), un doigt télécommandé (25), qui peut être mis en prise avec des surfaces de butée (48, 64) prévues sur la partie anneau (41, 58), et empêche ainsi la partie anneau (41, 58) de tourner, et en ce que, lorsque la partie anneau (41, 58) est ainsi arrêtée, les moyens de serrage (44, 45 ; 51) peuvent être actionnés par une rotation simultanée des arbres porte-lames (5, 6).
  7. Cisaille circulaire selon la revendication 6, caractérisée en ce que le manipulateur (15) présente un cadre en anneau (19), qui entoure les deux arbres porte-lames (5, 6) de tous côtés, et sur lequel sont agencés les coulisseaux (21) et les doigts (25).
  8. Cisaille circulaire selon la revendication 4 ou 5, caractérisée en ce que chaque lame circulaire (15) présente un anneau de dégagement élastique (38), et les parties moyeu et anneau (34, 41 ; 53, 58) font saillie axialement et d'un côté au-delà de la partie lame (36) ou de l'anneau de dégagement (38), et en ce que les lames circulaires (14) sont agencées sur l'arbre porte-lames (5, 6) de telle manière que, soit toutes les parties moyeux et toutes les parties anneaux sont dirigées dans le même sens, soit ces parties sont dirigées en alternance vers des côtés différents.
EP91903351A 1990-02-20 1991-02-08 Cisaille a roulettes de coupe Expired - Lifetime EP0516642B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT9191903351T ATE104895T1 (de) 1990-02-20 1991-02-08 Rollenschere.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4005271 1990-02-20
DE4005271A DE4005271C1 (fr) 1990-02-20 1990-02-20
PCT/EP1991/000237 WO1991012938A1 (fr) 1990-02-20 1991-02-08 Cisaille a roulettes de coupe

Publications (2)

Publication Number Publication Date
EP0516642A1 EP0516642A1 (fr) 1992-12-09
EP0516642B1 true EP0516642B1 (fr) 1994-04-27

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ID=6400550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91903351A Expired - Lifetime EP0516642B1 (fr) 1990-02-20 1991-02-08 Cisaille a roulettes de coupe

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US (1) US5297464A (fr)
EP (1) EP0516642B1 (fr)
JP (1) JPH05504305A (fr)
AT (1) ATE104895T1 (fr)
CA (1) CA2072886A1 (fr)
DE (2) DE4005271C1 (fr)
DK (1) DK0516642T3 (fr)
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CN105618833B (zh) * 2016-03-10 2018-07-20 山推工程机械股份有限公司 一种金属切割机构

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US5297464A (en) 1994-03-29
ATE104895T1 (de) 1994-05-15
EP0516642A1 (fr) 1992-12-09
DE4005271C1 (fr) 1991-10-02
DE59101510D1 (de) 1994-06-01
WO1991012938A1 (fr) 1991-09-05
JPH05504305A (ja) 1993-07-08
CA2072886A1 (fr) 1991-08-21
ES2051589T3 (es) 1994-06-16
DK0516642T3 (da) 1994-05-30

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