EP0322325B1 - Maschine zum Bearbeiten von Leder - Google Patents

Maschine zum Bearbeiten von Leder Download PDF

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Publication number
EP0322325B1
EP0322325B1 EP88420428A EP88420428A EP0322325B1 EP 0322325 B1 EP0322325 B1 EP 0322325B1 EP 88420428 A EP88420428 A EP 88420428A EP 88420428 A EP88420428 A EP 88420428A EP 0322325 B1 EP0322325 B1 EP 0322325B1
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EP
European Patent Office
Prior art keywords
roller
rotation
cradle
axis
machine
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
EP88420428A
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English (en)
French (fr)
Other versions
EP0322325A1 (de
Inventor
Jean-Paul Albert Chalton
Jean-Claude Gille
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.)
Mercier Freres SA
Original Assignee
Mercier Freres SA
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 Mercier Freres SA filed Critical Mercier Freres SA
Priority to AT88420428T priority Critical patent/ATE75263T1/de
Publication of EP0322325A1 publication Critical patent/EP0322325A1/de
Application granted granted Critical
Publication of EP0322325B1 publication Critical patent/EP0322325B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B68—SADDLERY; UPHOLSTERY
    • B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
    • B68G3/00—Treating materials to adapt them specially as upholstery filling
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/02—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or leather
    • C14B1/04—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or leather using slicking, scraping, or smoothing-out cylinders or blades fixed on supports, e.g. cylinders, in a plane substantially at right angles to the working surface
    • C14B1/06—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or leather using slicking, scraping, or smoothing-out cylinders or blades fixed on supports, e.g. cylinders, in a plane substantially at right angles to the working surface in machines in which the working piece is maintained in contact with the working tools solely by means of rolls
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B17/00—Details of apparatus or machines for manufacturing or treating skins, hides, leather, or furs
    • C14B17/10—Arrangements for driving parts of leather-working machines

Definitions

  • the present invention relates to the technical field of tanning or working skins and it relates, more particularly, to winding, stretching, unwinding machines or other similar machines.
  • Such machines are generally intended for flattening tanned hides, so as to provide stretching to gain transformable useful surface. Such work is carried out on each skin in the wet state.
  • the machines designed to assume the above function generally comprise a frame supporting a working cylinder with helical blades, in a fixed position, generally horizontal driven in rotation at a determined constant speed.
  • a frame also supports an upper cradle carrying a driving cylinder rotated by a motor member and responsible for scrolling a lining, made of felt, assuming a wringing function and against which the skin to be worked is pressed.
  • the frame also supports a lower cradle carrying a transport cylinder on which a working skin is placed, when the transport cylinder occupies a position, called the opening position, being distant from the working cylinder and the driving cylinder.
  • the lower cradle is associated with relative pivoting drive members capable of passing it from the first open position to a closed position in which the transport cylinder is brought into docking at least with the drive cylinder responsible for scrolling. the skin supported between the transport cylinder and the work cylinder.
  • the machines of the above type include, as a driving member, generally an electric motor associated with a double outlet outlet ensuring the direct rotation drive, simultaneously of the driving cylinder and the conveying cylinder.
  • the skins thus worked have marks or marks of cleavages which are detrimental to the proper subsequent use of the skin and, in particular, to the production of high quality articles. There are several reasons for such brands due to the structure of these machines.
  • the first is that the cradle, supporting the transport cylinder, is moved relatively from the open position to the closed position by making an angular displacement of partial opening, generally less than 45 °, bringing the transport cylinder into docking according to a intersecting path to the driving cylinder and the working cylinder.
  • the driving movement of the cradle is, in general, ensured by a transmission system of the connecting rod-crank type, with knuckles, urging the cradle in a displacement stroke at a speed imposed by the mechanical device used, but not optimized for required work.
  • the ensuing docking can be described as brutal producing a marking effect of the skin undergoing a high pressure between the transport cylinder and at least the drive cylinder, due to the take-up, by the inertia of the cradle, of the sets of the transmission of the rod-crank type to knee pads.
  • the transport cylinder is generally provided with an elastomer coating, while the drive cylinder is provided with a coating, based on felt, representing , either a direct envelope, or an endless band.
  • the patent FR 1 052 911 on which the first part of claim 1 is based recommends a provision aiming to arrange the pivot axis of the cradle so that, on the one hand, the geometric axis, joining said axis to the axis of rotation of the conveying cylinder, make with the horizontal, in the open position of the movable assembly, an angle less than 45 ° and that, on the other hand, the axis of rotation of said cylinder is moved during the closing movement of the moving part, in an upward movement along a circular geometrical location segment located between the working cylinder and the opening.
  • the present invention aims to reduce the above disadvantage, prohibitive for obtaining fragile skins of very good quality, by recommending a new machine structure making it possible, if not to remove, at least to significantly reduce the marks or effects of cleavages imposed on a skin during the landing stroke of the transporting cylinder against the group formed by the driving cylinder and the working cylinder.
  • Fig. 1 is a schematic perspective of a machine for working the skins, according to the invention.
  • Fig. 2 is a cross section taken, on a larger scale, substantially along the plane II-II of FIG. 1 .
  • Fig. 3 is a cross section similar to FIG. 2 , illustrating another characteristic position of some of the components of the machine.
  • Figs. 4 and 4 a are schematic views highlighting one of the constructive characteristics of some of the constituent elements of the machine, by comparison with the prior art.
  • Fig. 5 is a schematic view illustrating, on a larger scale, another constructive characteristic of the machine.
  • Fig. 6 is an exploded diagrammatic view of the constituent parts of the machine illustrating a particular constructive characteristic.
  • the working machine comprises a frame 1 constituted by lateral frames 2 connected together by spacer beams 3 .
  • the frame 1 is completed by a fairing 4 delimiting, on the front 5 , an opening 6 for loading and unloading provided with a feeding table 7 .
  • the opening 6 extends horizontally and has a low height H compared to its useful width L.
  • the frame 1 supports, by bearings 8 , the axis of rotation A9 of a working cylinder 9 extending horizontally, substantially in the horizontal median plane of the opening 6 .
  • the working cylinder 9 is of the type with helical blades, preferably organized in two series of opposite winding directions, connecting in the manner of rafters in a median transverse plane of the cylinder 9 . It must be considered that the axis A9 can be defined by journals integral with the cylinder 9 or by a shaft carrying the latter.
  • the cylinder 9 is moved in rotation at constant speed by means of a suitable drive member, such as that designated by the reference 10 in FIG. 6 .
  • the frame 1 also supports a cradle 11 defined as being greater than the working cylinder 9 .
  • the cradle 11 comprises two arms 12 joined by one or more spacers 13 to form a unitary assembly mounted, by means of pins 14 , so as to be able to oscillate in one or the other of the directions of the arrow f1 .
  • the ends of the arms 12 directed opposite the window 6 are adapted to the movable members of jacks 15 capable of being supplied to control the pivoting of the cradle 11 according to the arrow f1 over a maximum amplitude determined by a double stop 16 .
  • the arms 12 carry bearings 17 supporting the axis of rotation A18 of a driving cylinder 18 extending parallel and above the working cylinder 9 and rotated by means of d 'a motor unit 19 (fig. 6) .
  • the driving cylinder 18 is associated with a spin felt fur which can be constituted by a lining directly coating the cylinder 18 or by an endless belt surrounding the latter as well as a cylinder or deflection roller 20 , for example, concentric at frame 13 .
  • the arms 12 are shaped so that the axis A18 of the cylinder 18 is located in front of a vertical plane PP ′ passing through the axis of rotation A9 of the working cylinder 9 , in consideration of the loading-unloading opening 6 .
  • the frame 1 supports, moreover, a movable assembly 21 lower than the working cylinder 9 and comprising a cradle 22 supporting the axis of rotation A23 of a transport cylinder 23 extending horizontally between the PP ′ plane and the loading-unloading opening 6 .
  • the cradle 22 is constituted by two arms 24 , preferably joined by a spacer frame 25 and supporting, by bearings 26 , the axis of rotation A23 .
  • the arms 24 are mounted in rotation on a pivot axis 27 which is carried by the frame 1 .
  • the movable element 21 is associated with drive means 28 capable of moving it from an open position as illustrated in FIG.
  • FIG. 3 in which the transport cylinder 23 is at least brought into contact with the drive cylinder 18 .
  • the transport cylinder 23 is rotated by a motor 29 (fig. 6) which can be a two-way rotation.
  • the pivot axis 27 is arranged to be located behind the plane PP ′ with respect to the opening 6 .
  • the means 28 are organized so as to keep the assembly 21 in an open position such that the geometric axis G1 joining the axis of rotation A23 to the pivot axis 27 , does, with respect to a horizontal reference plane P1 passing through the pivot axis A27 , an angle ⁇ less than 45 ° and, preferably, close to 30 °.
  • the length of the axis G1 is, moreover, determined so that the axis of rotation A23 is moved, during the travel from the open position to the closed position of the moving element 21 , according to a movement ascending along a circular geometric location C located between the working cylinder 9 and the loading-unloading opening 6 .
  • the structural arrangement makes it possible to move the mobile assembly 21 from the open position, shown schematically in solid lines in FIG. 4 , to a closed position shown in phantom.
  • the transport cylinder 23 follows the path C and is thus brought into mating contact, substantially tangential, more particularly with the working cylinder 9 .
  • This arrangement makes it possible to reduce the linear contact pressure at closure between the cylinders and to reduce, or even eliminate, the cleavage marks which are usually imprinted on a skin p , when the stroke of the moving assembly, from the position opening to the closed position, takes place as shown in fig. 4 a illustrating, in a comparative manner, the usual structural arrangements of the prior art.
  • the means 28 for pivotally driving the movable assembly 21 , from the open position according to FIG. 2 , in the closed position according to FIG. 3 , and vice versa, are constituted by at least one cam 30 and, preferably, two linked in rotation by a spacer shaft 31 carried by the frame 1 .
  • the shaft 31 is driven in alternating rotation by means of a motor 32 (fig. 6) .
  • the cams 30 are intended to cooperate, by raceways 33 , with two rollers 34 which are mounted free to rotate on the frame 25 of the cradle 22 .
  • the means 28 are carried by the frame, so that the rotary drive shaft 31 is located below the frame 25 .
  • the two cams 30 are executed, as shown in FIG. 5 , so as to comprise a first raceway segment 331 covering an angular range ⁇ 1 of increasing radii.
  • the angular range ⁇ 1 corresponds to a drive stroke in rapid approach of the movable assembly 21 towards the closed position.
  • the cams 30 are also traced so that the raceway 33 includes, following and in the continuity of the segment 331 , a second segment 332 covering an angular range ⁇ 2 of radii also increasing, but according to a lower growth law to that of the rays defining the range ⁇ 1 .
  • the range ⁇ 2 solicits the moving element 21 in slow landing travel relative to the group of cylinders 18 and 9 .
  • the cams 30 are, moreover, executed so as to comprise, following and in the extension of the raceway segment 332 , a raceway segment 333 defined by a constant radius centered on the axis of the shaft rotational drive 31 .
  • the segment 333 covers an angular range ⁇ 3 corresponding to a possible compensation stroke for alignment of the cradle 22 in the docking and locking position of said cradle in this closed position.
  • the angular amplitude of the range ⁇ 3 is determined, so as to allow the first locking function, but also the compensation function alignment, or games introduced in the various articulated cooperating systems, that is to say the movable assembly 21 and the means 28 , or, again, precise angular alignment between the cams 30 .
  • the means 28 for pivotally driving the movable assembly 21 allow the cradle 22 to be subjected to a first rapid approach phase followed by a slow docking phase.
  • This docking phase slow relative to that generated by the usual rod-crank control systems, also makes it possible to reduce the markings or cleavages of a skin.
  • Fig. 5 shows that it is also advantageous to mount the pivot axis 27 of the movable assembly 21 on an eccentric 40 capable of being adjusted by means of a control 41 accessible on the front of the machine.
  • the adjustment of the eccentric 40 by the control 41 , makes it possible, in combination with the presence of the concentric segments 333 , to adjust the docking position of the transport cylinder 23 relative to the working cylinder 9 as a function of the intensity of the desired effect on the skin and / or of the wear of the blades thereof, without modification of the closing-opening stroke defined by the raceways 33 .
  • the machines for working the skins are generally also provided with an establishment cylinder 45 associated with the transport cylinder 23 and carried by the mobile assembly 21 .
  • the setting cylinder is designed to cooperate with the working cylinder 9 in the closed position of the moving element 21 .
  • a setting cylinder 45 is not, either, responsible for a marking or cleavage effect of the skin to be worked, it is provided, according to the invention, to mount it on a rotation shaft A45 carried by two flanges 46 free to rotate on bearings 47 of the axis of rotation A23 .
  • the flanges 46 are arranged so that the axis A45 is located below the transport cylinder 23 .
  • At least one of the flanges 46 is connected by a hinge 48 to a connecting rod 49 also mounted by a hinge 50 on the frame 1 .
  • the articulation 50 is preferably carried by a crank 51 secured to a shaft 52 which is mounted, with the possibility of rotation, in bearings carried by the frame 1 .
  • the connecting rod 49 forms, with the part of the corresponding arm, lying between the axis A23 and the axis 27 , a deformable parallelogram of which one of the long sides, constituted by the connecting rod 49 , has a length greater than the other formed by the alignment G1 between the axes 23 and 27 .
  • the closing stroke results in a pivoting stress on the flanges 46 , in the direction of the arrow f2 .
  • the setting cylinder 45 is brought, gradually, into docking with the working cylinder 9 , when the movable element 21 occupies its closed position, as illustrated in FIG. 3 . In this way, intense local pinching between the setting cylinder 45 and the working cylinder 9 is avoided and makes it possible to remove a mark imposed irreversibly on the skin during work.
  • the connecting rod 49 is, of course, of an adjustable nature by any suitable means known in the art.
  • the working cylinder 9 may exhibit, as it is used, a decreasing variation in diameter due to the wear of the blades constituting it.
  • the rotating shaft 52 is preferably associated with an articulated system 53 for adjusting the position and clamping pressure of the setting cylinder 45 against the working cylinder 9 .
  • the articulated system 53 comprises a lifting beam 54 integral angularly of the rotating shaft 52 and arranged in a vertical plane.
  • the two arms of the spreader 54 are connected to two rods 55 and 56 which are associated with two members 57 and 58 for adjusting their length.
  • the members 57 and 58 are preferably accessible on the front 5 of the frame 1 of the machine.
  • one of the rods for example the upper rod 55 , incorporates an elastic compensator 59 allowing relative pivoting of the rotating shaft 52 when, for example, it is necessary to compensate for the passage between the setting cylinder 45 and the cylinder 9 , with a local excess thickness of a skin being treated, such as, for example, that located along the backbone.
  • the adjusting member 58 By means of the adjusting member 58 , it becomes possible to adjust the position of the setting cylinder 45 relative to the working cylinder 9 in the closed state of the moving element 21 . Via the adjusting member 57 , it is possible to adjust the application pressure of the setting cylinder 45 , while allowing elastic erasure of the latter during the passage of a local allowance.
  • the pump 61 of the variable flow type, is mounted on the output shaft of a motor 64 also ensuring the driving of a pump 65 responsible for supplying the motor member 32 responsible for the drive in rotation of the shaft 31 common to the cams 30 .

Claims (9)

1. Maschine zum Bearbeiten von Häuten, von der Art mit einem Gestell (1), das einerseits an der Vorderseite (5) eine horizontale Öffnung (6) der Zufuhr und Ausbringung begrenzt, von geringer Höhe bezüglich der Eintrittsbreite, und andererseits einen drehenden horizontalen Arbeitszylinder (9) mit Schaufeln, einen Mitnahmezylinder (18), der parallel zum Arbeitszylinder (9) dreht und eine bewegbare Ausrüstung (21) trägt, die wenigstens einen Transportzylinder (23) aufweist, der parallel zum Mitnahmezylinder (18) getragen wird durch eine Wiege (22), die gelenkig an dem Gestell durch eine horizontale Schwenkachse (27) angebracht ist, die in einer Ebene geringer bzw. niedriger als die Drehachse des Arbeitszylinders (9) angeordnet ist, wobei die Wiege mit Antriebseinrichtungen (28) der Bewegung verbunden ist, die in der Lage sind, sie von einer Position, genannt Schließstellung, in der der Transportzylinder (23) den Antriebszylinder (18) koppelt, der zwischen dem Arbeitszylinder (9) und der Öffnung (6) sich befindet, zu einer anderen Position, genannt Öffnungsstellung, zu bewegen, in der der Transportzylinder (23) vom Antriebszylinder (18) und vom Arbeitszylinder (9) entfernt ist, wobei er wenigstens teilweise bezüglich der Öffnung (6) weggebracht ist, und umgekehrt, wobei die Schwenkachse (27) der Wiege (22) auf dem Gestell derart angeordnet ist, daß einerseits die geometrische Achse (G₁), die die Achse mit der Drehachse des Transportzylinders (23) verbindet, mit der Horizontalen (P₁) in der Öffnungsstellung der beweglichen Ausrüstung einen Winkel (α) bildet, der geringer ist als 45° und daß andererseits die Drehachse des Zylinders (23) bei der Bewegungsbahn der beweglichen Ausrüstung bewegt wird, entlang einer ansteigenden Bewegung gemäß eines Segments von kreisförmigem geometrischen Ort (C), das zwischen dem Arbeitszylinder (9) und der Öffnung (6) angeordnet ist,
   dadurch gekennzeichnet, daß:
- die Antriebseinrichtungen (28) aus wenigstens einem Nocken (30) gebildet sind, dessen Rollweg (33) mit einer Walze (34) zusammenwirkt, die durch die Wiege (22) getragen wird,
- und daß die Drehachse (27) der Wiege (22) auf dem Gestell mittels wenigstens eines Exzenters (40) angeordnet ist.
2. Maschine zum Bearbeiten von Häuten, nach Anspruch 1, dadurch gekennzeichnet, daß der oder die Nocken (30) einen Rollweg (33) aufweisen, mit einem ringförmigen Bereich (β₁) von zunehmenden Radien, die eine schnelle Zufuhrbahn der Wege in die Schließstellung definieren, einen Bereich (β₂) von zunehmenden Radien, die eine langsame Ankopplungsbahn definieren, und einen Bereich (β₃) von konstanten Radien, die eine Kompensationsbahn der Ausrichtung und Verriegelung definieren.
3. Maschine zum Bearbeiten von Häuten, nach Anspruch 1, dadurch gekennzeichnet, daß der oder die Exzenter (40) Einstellexzenter der Kopplungsstellung des Transportzylinders (23) sind.
4. Maschine zum Bearbeiten von Häuten, nach Anspruch 1, dadurch gekennzeichnet, daß die Wiege (22) durch zwei seitliche Arme (24) gebildet wird, die die Drehachse des Transportzylinders (23) tragen, und verbunden sind durch wenigstens eine Gurt-Abstandshülse (25), auf der zwei Walzen (34) angebracht sind, die mit dem Rollweg (23) der beiden Nocken zusammenwirken, die auf einer gemeinsamen Motorwelle (31) drehverkeilt sind.
5. Maschine zum Bearbeiten von Häuten nach einem der Ansprüche 1, 2 oder 4, dadurch gekennzeichnet, daß die Wiege (22), durch die Lager (47) der Drehachse des Transportzylinders (23), zwei seitliche Flansche oder Blenden (46) trägt, die drehbeweglich sind, die die Drehachse eines Anbringzylinders (45) tragen, der unterhalb des Transportzylinders angeordnet ist und ausgehend von letzterem in Drehung versetzt wird, wobei einer der Flansche wenigstens durch ein Gelenk (48) mit einem Pleuel (49) von einstellbarer Länge verbunden ist, darüberhinaus an dem Gestell angelenkt ist, derart, um mit dem entsprechenden Arm der Wiege ein verformbares Trapezoid der automatischen relativen Schwenksteuerung der Flansche in Richtung des Wegbringens des Etablierzylinders bezüglich des Arbeitszylinders definiert, beim Öffnungsweg der bewegbaren Ausrüstung und in Kopplungsrichtung des Arbeitszylinders bei dem Schließweg dieser Ausrüstung.
6. Maschine zum Bearbeiten von Häuten nach Anspruch 5, dadurch gekennzeichnet, daß der Gelenkpunkt (50) des Pleuels auf dem Gestell durch einen Hebel (51) gebildet wird, der mit einer Drehwelle (52) verbunden ist, die einem Einstellsystem (43) der Position und des Klemmdrucks des Etablierzylinders in Schließstellung der beweglichen Ausrüstung zugeordnet ist.
7. Maschine zum Bearbeiten von Häuten nach Anspruch 6, dadurch gekennzeichnet, daβ das System (53) ein vertikales Gestänge (54) aufweist, das winkelig auf der Drehwelle verkeilt ist, und dessen beide Arme an zwei Stangen (55, 56) angelenkt sind, die zwei Einstellorganen (57, 58) ihrer Länge zugeordnet sind und von denen eines einen elastischen Ausgleich (50) einschließt.
8. Maschine zum Bearbeiten von Häuten nach Anspruch 7, dadurch gekennzeichnet, daß die Einstellorgane (57, 58) der Stangen von der Vorderseite (5) der Maschine getragen werden.
9. Maschine zum Bearbeiten von Häuten nach Anspruch 1, dadurch gekennzeichnet, daß der Transportzylinder (23) und der Antriebszylinder (18) in Drehung versetzt werden durch zwei Motorgruppen (19, 29), deren Versorgung parallel ausgehend von derselben Energiequelle (60) sichergestellt ist.
EP88420428A 1987-12-22 1988-12-21 Maschine zum Bearbeiten von Leder Expired - Lifetime EP0322325B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88420428T ATE75263T1 (de) 1987-12-22 1988-12-21 Maschine zum bearbeiten von leder.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8718245A FR2624880B1 (fr) 1987-12-22 1987-12-22 Machine a travailler les peaux
FR8718245 1987-12-22

Publications (2)

Publication Number Publication Date
EP0322325A1 EP0322325A1 (de) 1989-06-28
EP0322325B1 true EP0322325B1 (de) 1992-04-22

Family

ID=9358363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88420428A Expired - Lifetime EP0322325B1 (de) 1987-12-22 1988-12-21 Maschine zum Bearbeiten von Leder

Country Status (7)

Country Link
EP (1) EP0322325B1 (de)
KR (1) KR890009760A (de)
AT (1) ATE75263T1 (de)
BR (1) BR8806785A (de)
DE (1) DE3870427D1 (de)
ES (1) ES2031624T3 (de)
FR (1) FR2624880B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1317384B1 (it) * 2000-12-18 2003-06-16 Rizzi 1857 S P A Dispositivo di guida e di scarico automatico di pelli in macchine aritenere ed asciugare.
IT1395786B1 (it) * 2009-09-14 2012-10-19 Dal Lago S R L Dispositivo di stenditura di pelli per impianti per conceria.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1052911A (fr) * 1951-03-13 1954-01-28 Turner Tanning Mach Co Ltd Machine à traiter le cuir ou matières analogues
FR1069162A (fr) * 1952-12-19 1954-07-05 Mercier Freres Machine perfectionnée pour le travail des cuirs et peaux
GB1167223A (en) * 1966-02-04 1969-10-15 Rizzi & Co Spa Luigi Improvements in or relating to Tannery Machines
DE2129118A1 (en) * 1971-06-11 1972-12-21 Maschinenfabrik Turner Ag, 6370 Oberursel Hide processing machine - using single pass for complete flaying using double conveyors

Also Published As

Publication number Publication date
FR2624880B1 (fr) 1990-11-09
EP0322325A1 (de) 1989-06-28
FR2624880A1 (fr) 1989-06-23
ATE75263T1 (de) 1992-05-15
ES2031624T3 (es) 1992-12-16
KR890009760A (ko) 1989-08-03
DE3870427D1 (de) 1992-05-27
BR8806785A (pt) 1989-08-29

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