EP3256273A1 - Système de presses à découper - Google Patents

Système de presses à découper

Info

Publication number
EP3256273A1
EP3256273A1 EP15705482.6A EP15705482A EP3256273A1 EP 3256273 A1 EP3256273 A1 EP 3256273A1 EP 15705482 A EP15705482 A EP 15705482A EP 3256273 A1 EP3256273 A1 EP 3256273A1
Authority
EP
European Patent Office
Prior art keywords
punch press
units
crankshaft
press units
assembly according
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
EP15705482.6A
Other languages
German (de)
English (en)
Other versions
EP3256273B1 (fr
Inventor
Josef Thomas Hafner
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.)
Bruderer AG
Original Assignee
Bruderer AG
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 Bruderer AG filed Critical Bruderer AG
Publication of EP3256273A1 publication Critical patent/EP3256273A1/fr
Application granted granted Critical
Publication of EP3256273B1 publication Critical patent/EP3256273B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0064—Counterbalancing means for movable press elements

Definitions

  • the present invention relates to a
  • a specialty here is the production of tool-opening container lid with Eindschreib- or tear-open, in the industry also referred to as EOE (Easy Open Can Ends), in which pre ⁇ manufactured sheet metal lid in the punch press with different profiles, with a scribe for the opening ⁇ point and be provided with a separately supplied indentation or tear tab.
  • EOE Easy Open Can Ends
  • the lower part of the press will be the lower half of the mold Moves and works against the fixed upper mold half, while the upper mold part is moved at the upper press part and works against the fixed lower mold half.
  • the moving mold halves of the lower and the upper press part are connected to each other via tie rods and are moved together via a crank mechanism up and down, so that the lower press part performs work on the upward movement and the upper press part performs work in the downward movement.
  • This punch press has the disadvantage that it is structurally weak and therefore allows only a low precision and allows only relatively slow stroke rates.
  • the upper press part, which produces the tear-open straps necessarily has the same stroke as the lower press part, which processes the covers, which considerably limits the possibilities of influencing the optimization of the overall process.
  • a punching press for the production of EOEs is known in which the prefabricated metal cover are guided in two parallel rows in the press longitudinal direction through a first press half, in which they are gradually transformed, provided with a score and then with a Auok s- be provided tab.
  • the tear-off tabs are produced, which are fastened to the covers in the first press half.
  • the lids are machined with two interpenetrating pressing tongs which work down against a press table common to the second half of the press.
  • the second half of the press has its own plunger for the production of tear tabs, which also works down against the press table. All three rams are driven by a common crankshaft.
  • This punch press has the disadvantage that it has a complicated structure with a total of three different rams and This is also structurally weak, which also allows only a low precision and only relatively slow stroke rates.
  • a particular disadvantage of this structure is that the punching force and / or temperature-induced deformations of one press half exert a strong influence on the respective other press half.
  • EP 0 281 777 A1 discloses a stamping press for the production of EOEs, in which the prefabricated sheet-metal lids are guided in three parallel rows in the press longitudinal direction through a first press, in which they are gradually formed, provided with a score and subsequently with a tear-open tab be provided.
  • the tear-open tabs are prepared, which are then fed directly to the first press and fixed there to the lids.
  • This punch press avoids some of the disadvantages of the above-mentioned stamping presses, but still has the disadvantage that the press ram of the first press is relatively large and correspondingly solid, which leads to enormous component loads and high energy requirements for large numbers of strokes.
  • the potential for increasing the number of strokes and thus for increasing the productivity of the press is significantly limited.
  • the use of a common tool for three rows of lids creates the problem that the first press must be operated with an enormous press load to ensure a precise scratch depth for all three rows of lids, which requires a great deal of energy and is wear-intensive.
  • the press ram of the punch press units are working in ⁇ wells downwardly against a machine bench, with which in each case extending in the passage direction of the cover by the press units crankshaft and connecting rod for converting the rotary movement of the crankshaft in the upward and downward movement of the press ram are arranged.
  • the crankshaft of the four Stanzpressenein ⁇ units are four angle gear and intermediate ⁇ ordered couplings connected to the main press drive.
  • a first aspect of the invention relates to a punch press assembly with a plurality of punch press units, preferably for the production of Tool-free container lids with push-in or tear-open tab.
  • the arrangement comprises at least two side- ⁇ stacked according to the claims first Stanzpressen- units, preferably of identical design and size, each having a stem for receiving and moving a first tool part, which works against a receiving plate for receiving an associated two ⁇ th tool part.
  • These first punch press units are aligned with one another in such a way that they have working directions running parallel to one another and working planes which are preferably located in a common plane.
  • the arrangement comprises at least one second punch press unit according to the claims, which has a ram for receiving and moving a first tool part which works against a receiving plate for receiving an associated second tool part.
  • the working direction of this second stamping press unit is perpendicular to the working directions of the first stamping press units, such that material pieces or material strips machined in a working area of the second stamping press unit can be guided into work areas of the first stamping press units in direct extension of the working direction of the second stamping press unit Working direction of the first punch press units to the first punch press units supplied material pieces or material bands to be further processed in the first punch press units.
  • the working plane of the second punch press unit preferably lies with the working levels of the first punch press units in a common plane.
  • Each of the first stamping press units has a crankshaft or eccentric shaft section rotatable around a claimed first rotational axis, which in cooperation with at least an associated connecting rod of generating a lifting movement of the plunger of the respective punch press unit for processing the material pieces and / or material strips in the punch press unit is used.
  • the second punch press unit likewise has a crankshaft or eccentric shaft section, which is rotatable with a drive unit around a demanding second rotation axis and, in cooperation with at least one associated connecting rod, serves to generate a lifting movement of the plunger of the second punch press unit for machining the pieces of material or strips of material in the second punch press unit.
  • the crankshaft or eccentric shaft portion of the second punch press unit is so coupled to the crankshaft or eccentric shaft portions of the first punch press units, preferably by rotational positive locking in both rotational directions, that its crankshaft or eccentric shaft portion forcibly rotates synchronously with the crankshaft or eccentric shaft portions of the first punch press units , preferably at the same speed.
  • the invention relates to a stamping press arrangement with a plurality of juxtaposed first stamping press units, which have working directions running parallel to one another in a common plane, and with a second stamping press unit whose working direction is perpendicular to the working directions of the first stamping press units, so that in this punch press unit processed material in direct extension of their working direction in working areas of the first punch press units can be led.
  • the punch press units each have a crank or eccentric shaft portion, by means of which the lifting movement of the respective press ram is effected via a connecting rod.
  • the crank or eccentric shaft sections of the first punch press units are forcibly driven together with the same speed via a common drive unit and have a common axis of rotation.
  • the crank or eccentric shaft portion of the second punch press unit is coupled to the crank or eccentric shaft portions of the first punch press units so as to forcibly rotate in synchronism therewith.
  • the axis of rotation of the crankshaft or eccentric shaft portion of the second punch press unit is parallel to the axes of rotation of the crankshaft or eccentric shaft portions of the first punch press units. It is particularly preferred that these axes of rotation coincide.
  • a simple and lossless or low-loss rotary coupling of the crankshaft or eccentric shaft sections is possible, e.g. by rigidly connecting them together or by coupling them via a positive coupling.
  • first punch press units each have a separately formed crankshaft or eccentric shaft section and the crankshaft or eccentric shaft sections of the first punch press units are coupled to one another in both directions of rotation by a rotary positive connection, preferably in such a way that they do so axially and radially displaceable to each other, which is advantageously done by means of one or more Oldham couplings.
  • the second punch press unit has a separately formed crankshaft or eccentric shaft section, which is coupled to the crankshaft or eccentric shaft section of one of the first punch press units in the previously described manner.
  • stamping press units make it possible to preclude a transfer of temperature and punching force-induced deformation forces between the stamping press units via their crank or eccentric shafts.
  • each of the first stamping press units has its own receiving plate formed separately from the other stamping press units. This makes it possible to decouple the structures of the stamping press units as far as possible mechanically from each other, to avoid transmission of temperature and punching force-induced deformation forces between their structures.
  • the receiving plates of the first punch press units are formed together, which allows a significant cost advantage in the event that certain compromises can be made in the precision.
  • the plungers of the punch press units advantageously work from above against a receiving plate arranged underneath.
  • Such concepts have the advantage that the pieces of material or material strips to be processed by gravity rest on the lower stationary mold half, which significantly facilitates material handling over other concepts for many applications.
  • the crankshaft or eccentric shaft sections are respectively arranged above the plunger, which is preferred, there is the advantage that particularly precise stamping press units become possible because a minimization of the punching force-related deflection of the plunger can be achieved by a central force introduction into the plunger actual ram drive can be formed from very short and rigid components, which also results in advantages in terms of inertial masses and thus with respect to the realizable punching frequencies.
  • the latter has a plurality of, preferably three or four, adjacently arranged first punch press units which, preferably in an area of the punch press units not substantially acted upon by the punching forces, join together to form a common self-supporting structure - they are.
  • "By the punching forces substantially not acted upon areas” are provided by components or component sections, which undergo substantially no punching force-induced dimensional change or deformation in the intended operation of the respective punch press unit
  • the stamping press units are in each case connected to one another in a region which is not substantially acted upon by the stamping forces, there is also the advantage that virtually no punching force-related deformations are transmitted between the stamping press units.
  • the outer two of the first punch press units connected to a common structure are each provided with a support are connected structure over which the structure formed by the first punch press units is supported on the ground.
  • the connection to the support structure is preferably realized in each case in an area of the stamping press units which is not acted on by the stamping forces.
  • the stamping press assembly at least one of the support structures on its side facing away from the structure of the interconnected first punch press units Sei ⁇ te wearing a claim-compliant second punch press unit.
  • the at least one second punch press ⁇ unit can be positioned exactly to the first punch press units and connected with these to a firmly connected unit.
  • This also makes it possible to determine the height of the working plane of the second punch press unit via the supporting structure or to adapt it to the height of the working levels of the first punch press units.
  • this makes it possible to use a second punch press unit according to the requirements, in which the receiving plate is supported by a suspended support structure.
  • a preferred configuration of this embodiment of the punch press arrangement comprises two groups of first punch press units, preferably two groups of three first punch press units each.
  • These groups of first stamping press units are, preferably in each case in a region of the respective stamping press units not substantially loaded by the stamping forces, to form a common self-supporting first structure (first group of first stamping press units) and to a common self-supporting second structure (second group of first punch press units) connected to each other.
  • first structure and the second structure are connected to each other at their opposite first ends via a first support structure arranged therebetween, via which these two structures are respectively supported on the ground at this first end.
  • At its other, second end of the structural ⁇ structures are each connected via the arranged at this second end of the first punch press unit with a further support structure over which the respective structure is supported at its second end on the floor.
  • At least one of these further support structures carries on its jewei ⁇ the time the first and second structures from each other comparable-bound first punching press units according to the claims side facing away from a second punch press unit.
  • the drive unit for the claim according to the first punch press units or the common drive unit for the claim according to the first and second punch press units between its flywheel and the crank ⁇ or Exzenterwellenabitesen no Gear has.
  • each of the first punch press units according to the invention has its own feed device for feeding individual pieces of material into a working area of the respective punch press unit, preferably a conveyor belt with holes for feeding metallic blanks, eg can lid blanks.
  • Such punch press arrangements are particularly suitable for the production of tool-free opening container lids with indentation Pull tab (EOE).
  • these feeders are driven by the drive unit for the punch press units, which realized in a simple manner a synchronous drive and can be dispensed with additional drives.
  • no separable couplings are preferably present between the feed devices and the drive unit, so that a positively synchronous coupling of the feed devices is present.
  • these feeding devices are integrated into the receiving plates of the first stamping press units according to the claims, which is preferred, they can be provided in a particularly space-saving manner.
  • Stamping press units only exactly one flywheel, exactly one separable coupling and has exactly one brake.
  • the first stamping press units and / or the at least one second stamping press unit each have exactly one connecting rod, by means of which the stamping force is introduced centrally into the respective plunger.
  • this design is advantageous because it allows a simple and inexpensive drive mechanism with few moving parts.
  • the first stamping press units and / or the at least one second stamping press unit each have two connecting rods, by means of which the punching force is symmetrically conducted into the respective tappet a ⁇ .
  • this design is advantageous because it increases the tilting rigidity of the ram.
  • each of the stamping press units of the stamping press arrangement has an egg ⁇ gene mass balancing device. As a result, the dynamic forces acting outwards can be reduced or eliminated.
  • each of the punch press units ⁇ the punch press assembly is independent of the other punch press units adjustable with respect to ram stroke and / or closing height. In this way, the punch press arrangement according to the invention allows maximum production flexibility and precision.
  • a second aspect of the invention relates to the use of the stamping press arrangement according to the first aspect of the invention for the production of metal can caps with tear-off or Eindgurlasche.
  • the advantages of the invention become particularly apparent.
  • FIG. 1 shows a front view of a first stamping press arrangement according to the invention
  • FIG. 2 is a side view of the first punch press assembly taken from the direction S in FIG. 1;
  • Fig. 3 is a horizontal section through the first punch press assembly along the line XX in Fig. 1;
  • Fig. 4 is a partial vertical section through the first punch press assembly along the line YY in Fig. 2;
  • FIG. 5 shows a vertical section through the first punch press arrangement along the line Z-Z in FIG.
  • Fig. 6 is an illustration like Fig. 5 of a variant of the first punch press assembly.
  • FIG. 7 shows a front view of a second punch press arrangement according to the invention.
  • FIGS. 1 and 2 show a first stamping press arrangement according to the invention for producing tool-less opening metallic container lids with a push-in or pull-tab, once in the front view (FIG. 1) and once in the side view with a viewing direction S from the left (FIG 2).
  • conversion presses which are each provided with prefabricated sheet-metal lids with different profilings, with a recess for the opening point and with an additionally supplied push-in or tear-open tab to a common self-sustaining
  • Structure 4a-4c interconnected.
  • the outer two conversion presses 4a, 4c of this structure 4a-4c are each provided with a support structure 9, 11; 10, 11, via which the structure 4a-4c formed by the three conversion presses 4a, 4b, 4c is supported on the floor.
  • the left support structure 9, 11 consists of a drive housing 9 and a support column 11, and the right support structure 10, 11 consists of a support portion 10 and a support column 11.
  • the latter support structure 10, 11 carries on her the conversion presses 4a, 4b , 4c side facing away from another stamping press 8 (claim second stamping press unit), by means of which the Eindrück- or tear tabs are made of a strip material 22.
  • This press 8 is referred to below as "tab press”.
  • the three conversion presses 4a, 4b, 4c are aligned with each other in such a way that they have mutually parallel working directions B and their working planes lie in a common plane.
  • the tongue press 8 is oriented in such a way to the conversion presses 4a, 4b, 4c, that their working direction A is perpendicular to the working directions B of the conversion presses 4a, 4b, 4c and their working plane lies in the same plane, in which also the working levels the conversion presses 4a, 4b, 4c lie.
  • the working direction A of the tongue press 8 intersects with the working directions B of the conversion presses 4a, 4b, 4c in the working areas of the conversion presses 4a, 4b, 4c.
  • the indentation or tear-off tabs formed in the work area of the tab press 8 by punching and forming on a material strip 22 are guided with the material strip 22 in direct extension of the working direction A of the tab press 8 into the working areas of the conversion presses 4a, 4b, 4c. where they are each solved with the respective conversion press 4a, 4b, 4c of the material band and riveted with the respective conversion press 4a, 4b, 4c in the direction B continuous metal lids.
  • the transport of the material strip 22 in the working direction A of the plate press 8 through the presses 4a, 4b, 4c, 8 is carried out by means of a feed device 23a at the entrance of the tab press 8 and a pulling device 23b at the outlet the last conversion press 4a seen in this direction A.
  • the conversion presses 4a, 4b, 4c each comprise a plunger 1a, 1b, 1c for receiving the upper moving conversion tool half (not shown), which from above against a separately formed from the other presses receiving plate 2a, 3a; 2b, 3b; 2c, 3c for receiving the associated lower fixed conversion tool half (not shown).
  • the plungers la, lb, lc are each guided vertically displaceably via four slide guides 12.
  • the plate press 8 comprises a plunger 5 for receiving the upper moving plate tool half (not shown), which (not ge ⁇ shows) works from above against a receiving plate 6, 7 for receiving the associated lower fixed tabs mold half .
  • the plunger 5 is also guided vertically displaceable over four slide guides 21.
  • the conversion presses 4a, 4b, 4c each have separately formed crankshafts 28a, 28b, 28c (according to the claims crankshaft or Exzenterwellenab ⁇ sections), which are respectively arranged above the respective Stös- sels la, lb, lc and a single associated Connecting rods 29a, 29b, 29c with the plunger la, lb, lc of the respective conversion press 4a, 4b, 4c coupled to generate the lifting movement of the plunger la, lb, lc this press.
  • the punching force with the connecting rods 29a, 29b, 29c in each case centrally via a height-adjustable thrust bearing 39 in the plunger la, lb, lc introduced.
  • the plate press 8 also has a crankshaft 30 (claims crankshaft or eccentric shaft portion), which is arranged above its plunger 5 and via two connecting rods 31 a, 31 b with the Stroke 5 is coupled to generate the lifting movement of the plunger 5 of this press 8.
  • the punching force with the two connecting rods 31a, 31b symmetrically via two height ⁇ adjustable thrust bearing 39 is introduced into the plunger 5.
  • crankshafts 28a, 28b, 28c, 30 are rotationally positively coupled in both directions of rotation and thereby axially and radially displaceable with each other by ⁇ Oldham clutches 32 with each other. They are driven by a common drive unit, which has an external main drive motor 24, arranged in the drive housing 9 clutch and
  • Brake assembly 34, 35 with a flywheel 33 and a angeord ⁇ under a protective cover 27 on the drive housing 9 belt drive 25, 26 includes. Between the flywheel 33 and the crankshaft 28a, 28b, 28c, 30 of the presses 4a, 4b, 4c, 8, no transmission are arranged.
  • each of the conversion presses 4a, 4b, 4c has its own feed device 13, 14, 15 integrated in its receiving plate for feeding the metal lid blanks into its working area, which in each case is a transfer system 13 and a conveyor belt 15 with holes 16 for receiving the lid blanks comprises.
  • the conveyor belt 15 extends in each case between two deflection rollers 14 through the respective conversion press 4a, 4b, 4c.
  • the exit-side deflection rollers 14 of the conversion presses 4a, 4b, 4c are each supported by a shaft 17 which is non-rotatably connected to the respective deflection roller 14 and rotatably supported by two bearing blocks 18 on the structure of the respective conversion press 4a, 4b, 4c is.
  • These shafts 17 of the three conversion presses 4 a, 4 b, 4 c are rotationally positively coupled via two intermediate shafts 19 in both directions of rotation and are connected via a step transmission 20, which by means of two deflecting gear 20a, 20c and a propeller shaft 20b with the crankshaft 28a, 28b, 28c, 30 of the presses 4a, 4b, 4c, 8 is rotationally synchronously coupled, driven.
  • a step transmission 20 by means of two deflecting gear 20a, 20c and a propeller shaft 20b with the crankshaft 28a, 28b, 28c, 30 of the presses 4a, 4b, 4c, 8 is rotationally synchronously coupled, driven.
  • the feeders 13, 14, 15, 16 and the drive unit 24 25, 26, 33, 34 no separable couplings are present.
  • each of the presses 4a, 4b, 4c, 8 has a balancing mass 36a, 36b, 36c, 37, which in each case run counter to the respective one by means of further connecting rods arranged on the respective crankshaft 28a, 28b, 28c, 30 Press ram la, lb, lc, 5 is moved up and down, for the reduction or elimination of externally effective dynamic forces ⁇ th.
  • FIG. 6 shows a variant of the stamping press arrangement in a vertical section along the line ZZ in FIG. 4.
  • the respective connecting rod 29a, 29b, 29c is provided with a lever mechanism the plunger la, lb, lc of the respective conversion press 4a, 4b, 4c coupled, wherein the introduction of force takes place symmetrically via two pressure flaps 38.
  • Fig. 7 shows a front view of a second punch press assembly according to the invention.
  • This differs from the above-described first stamping press arrangement according to the invention only in that it comprises six juxtaposed conversion presses 4d, 4e, 4f; 4g, 4h, 4i (six claimed first punch press units), with each of which prefabricated metal lids are provided with different profiles, with a score for the opening point and with a supplied push-pull or tear-open.
  • 4d-4f and the second group 4g, 4h, 4i forms a second common self-supporting structure 4g-4i.
  • the first structure 4d-4f and the second structure 4g-4i are connected to one another via an intermediate support structure 10a, IIa (claimed first support structure), which consists of a support section 10 and a support column 11, and are supported by these Support structure 10, 11 on the ground.
  • the first structure 4d-4f is connected at its left end with its outer conversion press 4d with a further support structure consisting of a drive housing 9 and a support column 11 and is supported on this support structure 9, 11 on the ground.
  • the second structure 4g-4i is connected at its right end with its outer conversion press 4i with a further support structure consisting of a Susph ⁇ section 10 and a support column 11 and is supported on this support structure 10, 11 on the floor.
  • this support structure 10, 11 On its side facing away from the conversion presses 4g, 4h, 4i, this support structure 10, 11 carries a tab press 8 (second punch press unit according to the claims), by means of which the push-in or tear-open tabs are produced from a strip material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Control Of Presses (AREA)

Abstract

L'invention concerne un système de presses à découper comportant plusieurs premiers ensembles presse à découper (4a, 4b, 4c) agencés les uns à côté des autres et présentant des directions de travail (B) parallèles les unes aux autres dans un plan commun, et comportant un deuxième ensemble presse à découper (8) dont la direction de travail (A) est perpendiculaire aux directions de travail (B) des premiers ensembles presse à découper (4a, 4b, 4c), de sorte que le matériau traité dans cet ensemble presse à découper (8) peut être guidé dans le prolongement direct de sa direction de travail (A) dans les zones de travail des premiers ensembles presse à découper (4a, 4b, 4c). Les ensembles presse à découper (4a, 4b, 4c, 8) présentent chacun une section arbre à manivelle ou à excentrique (28a, 28b, 28c, 30), au moyen de laquelle le mouvement de levage de chaque coulisseau de presse (1a, 1b, 1c, 5) peut être imprimé par une bielle (29a, 29b, 29c, 31a, 31b) Les sections d'arbre à manivelle ou à excentrique (28a, 28b, 28c) des premiers ensembles presse à découper (4a, 4b, 4c) sont entraînées ensemble à force à la même vitesse de rotation par une unité d'entraînement commune (24, 25, 26) et présentent un axe de rotation commun (R1). La section d'arbre à manivelle ou à excentrique (30) du deuxième ensemble presse à découper (8) est accouplée aux sections d'arbre à manivelle ou à excentrique (28a, 28b, 28c) des premiers ensembles presse à découper (4a, 4b, 4c) de telle manière qu'elle tourne en synchronisation forcée avec ces dernières. L'invention permet de disposer à moindres coûts de systèmes de presse à découper rapides et hautement précis pour la fabrication en grande série économique de produits découpés et estampés en plusieurs pièces à tolérances étroites, par exemple couvercles de récipient s'ouvrant sans outil à languette de pression ou de déchirage (EOE)
EP15705482.6A 2015-02-11 2015-02-11 Système de presses à découper Active EP3256273B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2015/000018 WO2016127263A1 (fr) 2015-02-11 2015-02-11 Système de presses à découper

Publications (2)

Publication Number Publication Date
EP3256273A1 true EP3256273A1 (fr) 2017-12-20
EP3256273B1 EP3256273B1 (fr) 2018-10-17

Family

ID=52544232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15705482.6A Active EP3256273B1 (fr) 2015-02-11 2015-02-11 Système de presses à découper

Country Status (6)

Country Link
US (1) US20180029104A1 (fr)
EP (1) EP3256273B1 (fr)
JP (1) JP2018510780A (fr)
ES (1) ES2706275T3 (fr)
SG (1) SG11201705792WA (fr)
WO (1) WO2016127263A1 (fr)

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* Cited by examiner, † Cited by third party
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CN108380775B (zh) * 2018-05-02 2023-10-24 常州恒联机械五金有限公司 全自动冰箱把手管冲压装置
US11413678B2 (en) * 2019-01-10 2022-08-16 Stolk Machinery Company, LLC Transfer belt assembly for a six-out conversion system
CN110202814A (zh) * 2019-07-05 2019-09-06 天津恒兴机械设备有限公司 一种伺服闭式四点压力机
CN112792250B (zh) * 2021-04-02 2021-06-18 浙江易锻精密机械有限公司 一种冲床多工位自动上料系统
CN114472646B (zh) * 2021-12-27 2023-11-14 昆山市固展金属有限公司 一种高安全性钣金件生产设备及其生产方法
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EP3256273B1 (fr) 2018-10-17
WO2016127263A1 (fr) 2016-08-18
ES2706275T3 (es) 2019-03-28
JP2018510780A (ja) 2018-04-19
US20180029104A1 (en) 2018-02-01
SG11201705792WA (en) 2017-08-30

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