WO1998005441A1 - Systeme d'alimentation en continu de presses - Google Patents

Systeme d'alimentation en continu de presses Download PDF

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Publication number
WO1998005441A1
WO1998005441A1 PCT/ES1997/000199 ES9700199W WO9805441A1 WO 1998005441 A1 WO1998005441 A1 WO 1998005441A1 ES 9700199 W ES9700199 W ES 9700199W WO 9805441 A1 WO9805441 A1 WO 9805441A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal band
band
coil
lower frame
press
Prior art date
Application number
PCT/ES1997/000199
Other languages
English (en)
Spanish (es)
Inventor
Eduardo Soler Font
Original Assignee
EDT RIPOLL a SF FOUNDATION también conocida por ESCOLA DEL TREBALL DEL RIPOLLES, FUNDACIO S.F.
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 EDT RIPOLL a SF FOUNDATION también conocida por ESCOLA DEL TREBALL DEL RIPOLLES, FUNDACIO S.F. filed Critical EDT RIPOLL a SF FOUNDATION también conocida por ESCOLA DEL TREBALL DEL RIPOLLES, FUNDACIO S.F.
Priority to EP97933700A priority Critical patent/EP0875306B1/fr
Priority to DE69703281T priority patent/DE69703281T2/de
Publication of WO1998005441A1 publication Critical patent/WO1998005441A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C49/00—Devices for temporarily accumulating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/30—Arrangements for accumulating surplus web

Definitions

  • the present invention relates to a system of continuous feeding of presses, specifically printing presses fed by means of a metal band wound in a coil, of the type it comprises; a welding device, located next to the coil, by means of which the welding by testa is carried out between the final end of an exhausted coil and the initial end of a new coil; a variable capacity storage device, in which the length of metal band necessary to maintain the feed during the coil change and welding phases is accumulated; and a band rectifying device, which delivers it to a press.
  • the invention has been specifically designed with a view to ensuring the continuous feeding of the presses currently used for the manufacture of the magnetic sheet packages from Of those obtained, in a subsequent operation of aluminum overinjection, the rotors of the type called "squirrel cage" for electric motors.
  • variable belt accumulation store consists of forcing it to describe a zigzag between a lower guide roller train and an upper roller train that can be vertically displaced, varying the band length accumulated
  • the radius of all these guide rollers cannot be less than a limit, which depends on the thickness and characteristics of the band but is always considerable, so that the sum of the diameters of all these rollers, added to the need that all the elements of the installation are aligned on the direction of advance of the metal band, determines that there must be an unacceptable distance between the coil and the press.
  • the invention aims to overcome, in a practically radical way, the inconveniences that have been pointed out.
  • variable capacity storage device is constituted by a lower frame and an upper frame, independent of each other and facing each other, one above the other; each of said frames comprising a succession of guides arranged on the successive turns of an ideal spiral, which correspond and complement each other in the two frames defining a spiral, along which said metal band is suitable for sliding from its outer extremity, located in the lower framework, to the inner extremity, also located in the lower framework; said lower frame being fixed, while said upper frame is displaced and vertically, increasing or decreasing its separation with respect to said lower frame and consequently varying the total length of the stored metal band.
  • the metal band is guided, both inside the storage tank, and, especially, at the exit of the same, by a rigid metal track, eventually equipped with elements of
  • SUBSTITUTE SHEET RULE 26 rolling and / or sliding, which significantly reduce the total space occupied by the warehouse and allow the band to print any kind of turns in its direction of advance, for example, ninety degree turns, allowing the entire installation to be located in the immediate proximity of the fed press, so that the whole assembly can be comfortably under the control of a single operator.
  • Figure 1 a schematic side elevation view of the system assembly.
  • Figure 2 a schematic top plan view of the same set.
  • Figure 3 a schematic view in front elevation, also of said assembly.
  • Figure 4 is a schematic perspective view showing the basic principle of the present system and that allows printing to the web, without determining any kind of permanent deformations, any angle turns, especially turns of approximately ninety degrees , in its direction of progress.
  • Figure 5 a schematic side view of the storage device of a variable length of metal band, corresponding to the storage of the minimum band length.
  • Figure 6 a view similar to the previous one, corresponding to the storage of the maximum band length.
  • Figure 7 a schematic perspective view of the rigid track through which the metal band is guided from its exit from the warehouse until it enters the rectifying device from which the press is fed.
  • the system object of the invention comprises, first
  • SUBSTITUTE SHEET RULE 26 instead, a device for supplying the metal band 1, from a coil 2, of standard type.
  • This device is already widely known and disclosed and does not require any special explanation, having been designated as a whole with reference 3 and preferably belonging to the type that, as can be seen schematically in Figure 2, is able to allow the assembly of two supply coils, one of them active and the other in reserve, allowing to place this second coil in the supply position, when the first one is exhausted, by a simple lateral translation of the support. This arrangement makes it possible to minimize the duration of the coil change operations.
  • the system comprises a welding device 4 (of a type also known, which also does not require any special explanation), whereby, in the first place, the final end of the spent metal band coil 1 and the i-nial end of the new coil and, secondly, the soldier is carried by testa of these extremities together, so that the two coils form a single band 1, without any continuity solution.
  • a welding device 4 of a type also known, which also does not require any special explanation
  • the system comprises a storage device 5 of a variable length of metal band 1, of special design, and referred to again below.
  • the metal band 1 passes to a guide device 6, which is an indispensable complement to the storage device 5 and which is also referred to again below.
  • the metal band 1 is forced to pass through a rectifying device 7, of a known type, which erases the elastic tendency of said band 1 to bend, as a consequence of its permanence in the coil 2 and its passage through the storage devices 5 and guide 6, and the
  • SUBSTITUTE SHEET (RULE 26) It already supplies the press 8 directly, forcing it to form a loop 1 '(Fig. 3), whose purpose is simply to absorb the small differences that may occasionally exist between the supply speed of the band 1 and the working speed of the press.
  • the metal band 1 is stored, constituting the necessary reserve to be able to maintain without interruption the feeding of the press 8 during the periods of change of the supply coil and of actuation of the welding device 4, in spiral form and it is guided, from the central area of this spiral towards the press, by printing the necessary change (s) in its direction of advance, by means of the device 6.
  • the basic principle on which these direction changes are supported has been illustrated. schematically in Figure 4.
  • a metal band 1, whose thickness, by definition, is much smaller than the width always presents a certain possibility of adapting to curvatures on orthogonal axes to its longitudinal axis, and this for the reason that since the thickness is very reduced, the tension differences to which the two faces of the band 1 are subjected are also reduced.
  • an essential feature of the present invention is that the changes of direction to which the metal band is subjected are determined by a rigid guide 9, also in the form of a band, on which it rests, adapting this guide hel icoi dalment ea an ideal cylindrical surface 10, whose radius is equal to or greater than the minimum radius of curvature that said metal band 1 admits, without experiencing permanent deformations, on an axis perpendicular to its longitudinal axis.
  • This arrangement allows guiding the metal band 1 with absolute freedom
  • the metal band 1 reserve is made by storing it in a spiral.
  • a device is provided (indicated as a whole with reference 5 in Figures 1 to 3) composed of two independent frames 5a and 5b (Figs. 5 and 6). These two frames 5a and 5b are located one above the other and are exactly facing each other, each comprising a succession of guides 11, essentially arranged on the successive turns of an ideal spiral, which extend without continuity solution from one to the other. another frame 5a, 5b defining this spiral together.
  • the metal band 1 is guided along the spiral, penetrating it by its outer extremity 12 and protruding from it through the inner extremity 13, and these two extremities being located in the lower framework 5a.
  • the curvature of the innermost loop of the assembly may never have a radius of less than the minimum radius of curvature that the band 1 can withstand without experiencing permanent deformations.
  • the lower frame 5a remains fixed, being rigidly joined to a base 15, while the upper frame 5b can move vertically along guides 16, 16 ', being able to move a position (corresponding to the storage of a minimum length of metal band 1) in which it will rest against the lower or fixed frame 5a, to an opposite limit position in which it will be located a certain distance vertically above this fixed frame 5a, and in which the sections of metal band 1 that
  • the difference between the length of the metal band stored in the device when it occupies the position corresponding to a maximum (figure 6) and when it occupies the one corresponding to the minimum (figure 5), must coincide with the length consumed by the press during the period of time in which the external supply is interrupted, that is, during the performance of the indicated coil change operations, rewinding of the new one and welding.
  • the metal band 1 is guided by the guide device 6.
  • This guide device 6 is constituted by a track 9, whose The work face has a smooth rectilinear section, which extends the guide end 11 without continuous solution, and, like this, can be provided with a succession of free-spin rollers 14, skates or similar elements that reduce the maximum friction between the work face of
  • a first curvature 9a is totally obliged to remove the metal band from the central zone of the spiral formed by the independent frames 5a and 5b, that is, to move it away from the vertical plane of this spiral, and, from this curvature, the track it should only direct the tape towards the rectifying device 7 which finally delivers it to the press 8, and can therefore be extended in a practically rectilinear manner.
  • the track it is very advantageous for the track to have a second curvature 9b, printing to the metal band a rotation on the horizontal plane of approximately ninety degrees.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Belt Conveyors (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

Le système comprend un dispositif de soudage (4) destiné à souder une bobine arrivant à sa fin à une nouvelle bobine; un dispositif de rectification (7) de la bande métallique (1); et un dispositif de stockage (5) formé par une structure inférieure (5a) et une structure supérieure (5b), indépendantes l'une de l'autre, placées l'une face à l'autre et l'une au-dessus de l'autre; les structures (5a, 5b) possèdent des guides (11) qui définissent une spirale idéale le long de laquelle la bande métallique (1) peut glisser depuis son extrémité extérieure (12) jusqu'à son extrémité intérieure (13), toutes deux situées dans la structure inférieure (5a); cette dernière est fixe, tandis que la structure supérieure (5b) est déplaçable verticalement, ce qui permet de varier, en conséquence, la longueur de la bande métallique (1) stockée.
PCT/ES1997/000199 1996-08-02 1997-07-31 Systeme d'alimentation en continu de presses WO1998005441A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97933700A EP0875306B1 (fr) 1996-08-02 1997-07-31 Systeme d'alimentation en continu de presses
DE69703281T DE69703281T2 (de) 1996-08-02 1997-07-31 System zur kontinuierlichen zufuhr an eine presse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP9601740 1996-08-02
ES9601740A ES2123425B1 (es) 1996-08-02 1996-08-02 Sistema de alimentacion continua de prensas.

Publications (1)

Publication Number Publication Date
WO1998005441A1 true WO1998005441A1 (fr) 1998-02-12

Family

ID=8295744

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1997/000199 WO1998005441A1 (fr) 1996-08-02 1997-07-31 Systeme d'alimentation en continu de presses

Country Status (5)

Country Link
EP (1) EP0875306B1 (fr)
CA (1) CA2233559A1 (fr)
DE (1) DE69703281T2 (fr)
ES (1) ES2123425B1 (fr)
WO (1) WO1998005441A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175776A (en) * 1961-10-23 1965-03-30 British Iron Steel Research Apparatus for temporarily storing elongate material
US3589581A (en) * 1969-10-22 1971-06-29 Entwistle Co Accumulator
US4605178A (en) * 1983-10-04 1986-08-12 Hoesch Aktiengesellschaft Device for the compensating storage of packing band in packaging machines
US5193757A (en) * 1985-05-06 1993-03-16 Lev Talanker Automatic rolled convolution accumulator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175776A (en) * 1961-10-23 1965-03-30 British Iron Steel Research Apparatus for temporarily storing elongate material
US3589581A (en) * 1969-10-22 1971-06-29 Entwistle Co Accumulator
US4605178A (en) * 1983-10-04 1986-08-12 Hoesch Aktiengesellschaft Device for the compensating storage of packing band in packaging machines
US5193757A (en) * 1985-05-06 1993-03-16 Lev Talanker Automatic rolled convolution accumulator

Also Published As

Publication number Publication date
EP0875306B1 (fr) 2000-10-11
CA2233559A1 (fr) 1998-02-12
EP0875306A1 (fr) 1998-11-04
DE69703281D1 (de) 2000-11-16
DE69703281T2 (de) 2001-05-17
ES2123425A1 (es) 1999-01-01
ES2123425B1 (es) 1999-07-01

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