US20180029104A1 - Stamping press arrangement - Google Patents

Stamping press arrangement Download PDF

Info

Publication number
US20180029104A1
US20180029104A1 US15/549,732 US201515549732A US2018029104A1 US 20180029104 A1 US20180029104 A1 US 20180029104A1 US 201515549732 A US201515549732 A US 201515549732A US 2018029104 A1 US2018029104 A1 US 2018029104A1
Authority
US
United States
Prior art keywords
stamping press
stamping
units
press
press units
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.)
Abandoned
Application number
US15/549,732
Other languages
English (en)
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
Assigned to BRUDERER AG reassignment BRUDERER AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAFNER, JOSEF THOMAS
Publication of US20180029104A1 publication Critical patent/US20180029104A1/en
Abandoned legal-status Critical Current

Links

Images

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 stamping press arrangement as well as to a use of the stamping press arrangement according to the preambles of the independent claims.
  • a variety of components are manufactured by stamping presses in a particularly economic way and in large numbers.
  • a special field is the manufacturing of container lids with a push-in or a pull-off tab which can be opened without tools, also called EOE (Easy Open Can Ends) by the industry, for which manufacturing pre-fabricated metal sheet lids are provided in the stamping press, with different profiles, with a carving for the opening position as well as with a separately supplied push-in or a pull-off tab.
  • EOE Easy Open Can Ends
  • U.S. Pat. No. 4,166,424 discloses a stamping press for manufacturing EOEs, for which the prefabricated sheet metal lids are guided in two parallel rows through a bottom press part where they are stepwise reshaped, provided with a carving and provided subsequently with a pull-off tab.
  • a top press part is located directly above the bottom press part, through which a metal strip is guided and during this time reformed stepwise asstrip carrying serially one after the other the pull-off tabs to be attached to the lids in the bottom press part.
  • This strip is inserted into the bottom press part in a 180° arc in its transport direction in a reverse way and then perpendicular to the transport direction of the lids, where the pull-off tabs carried by it are separated from the strip and riveted with the lids.
  • the bottom tool half is moved and works against the fixed top tool half while in case of the top press part the top tool half is moved and works against the fixed bottom tool part.
  • the moved tool halves of the bottom and top press part are connected to one another via pull rods and are moved together up and down via a crank drive, such that the bottom press part acts during the upward movement and the top press part acts during the downward movement.
  • stamping press has the disadvantage that it is structurally weak and therefore only provides low precision as well as allows only comparatively slow stroke speeds. Additionally, the top press part, which produces the pull-off tabs, has mandatorily the same stroke like the bottom press part, which processes the lids, such that the influencing possibilities for optimizing the entire process are considerably restricted.
  • DE 36 27 179 A1 discloses a stamping press for manufacturing EOEs, in case of which the prefabricated sheet metal lids are guided in two parallel rows in longitudinal direction of the press through a first press half, where they are stepwise reshaped, provided with a carving and provided subsequently with a pull-off tab.
  • the pull-off tabs are produced in the second press half and are attached to the lids in in the first press half.
  • the lids are processed in the first press half with two press rams penetrating one another, which work downward against a press table which is solidary with the second press half.
  • the second press half has an own press ram for manufacturing the pull-off tabs, which also works downward against the press table. All three press rams are driven by a common crank drive.
  • This stamping press has the disadvantage that it has a complicated construction with three different press rams and that it is also structurally weak, such that also in this case it allows only a low precision as well as only comparatively slow stroke speeds.
  • a particular disadvantage of this construction is additionally that deformations of the one press half due to stamping force and/or temperature have a strong influence on the respective other press half.
  • EP 0 281 777 A1 discloses a stamping press for manufacturing EOEs, in case of which the prefabricated sheet metal lids are guided in three parallel rows in longitudinal direction of the press through a first press, where they are stepwise reshaped, provided with a carving and provided subsequently with a pull-off tab.
  • the pull-off tabs are produced in a second press which is synchronized with the first press and has a transport direction which is perpendicular to the transport direction of the first press, wherein the pull-off tabs are subsequently supplied directly to the first press and are attached to the lids there.
  • stamping press avoids some of the disadvantages of the stamping presses mentioned above, it has however still the disadvantage that the press ram of the first press is relatively big and accordingly massive, which leads to enormous component stress and a high energy consumption in case of high stroke speeds or significantly limits the potential for increasing the stroke speeds and consequently for increasing the productivity of the press, respectively. Additionally, due to the use of a common tool for three shell rows the problem results that the first press has to be operated with an enormous press load in order to ensure a precise carving depth for all three shell rows, thus requiring much energy and being prone to wear.
  • WO 2014/144119 A1 and WO 2014/144284 A1 disclose a stamping press for manufacturing EOEs, in case of which the prefabricated sheet metal lids are stepwise reshaped in three parallel stamping press units with one row each, are provided with a carving and provided subsequently with a push-in or pull-off tab, respectively.
  • the push-in or pull-off tab are manufactured of a sheet metal strip and subsequently supplied directly to the three mentioned press units, where they are attached to the lids.
  • the press ram of the stamping press units work each downward against a machine table under which crank shafts, each running through the press units in transport direction of the lids, and connecting rods for transforming the rotational movement of the crank shaft in the up and down movement of the press ram, are arranged.
  • the crank shafts of the four stamping press units are coupled to the main press drive via four angular gears and frictions arranged in between.
  • a first aspect of the invention relates to a stamping press arrangement with a plurality of stamping press units, preferably for manufacturing container lids with push-in or pull-off tabs which can be opened without tools.
  • the arrangement comprises at least two adjacent first stamping press units according to the claims, preferably with identical construction and size, each of which has a press ram for receiving and moving a first tool part which works against a receiving plate for receiving a corresponding second tool part.
  • These first stamping press units are oriented with respect to one another in such a way that they have working directions extending parallel to each other and preferably have work planes located in a common plane.
  • the arrangement comprises at least a second stamping press unit according to the claims, having a press ram for receiving and moving a first tool part which works against a receiving plate for receiving a corresponding second tool part.
  • the working direction of this second stamping press unit extends perpendicularly to the working directions of the first stamping press units, in such a way that material pieces or material strips processed in a working space of the second stamping press unit can be guided in direct extension of the working direction of the second stamping press unit into working regions of the first stamping press units for further processing in the first stamping press units with material pieces or material strips supplied in working direction of the first stamping press units to the first stamping press units.
  • the work plane of the second stamping press unit is preferably located in a same plane with the work planes of the first stamping press units.
  • the first stamping press units have each a crankshaft portion or eccentric shaft portion, which is rotatable about a first rotation axis according to the claims, and which serves in interaction with at least an attributed connecting rod to generate a travel movement of the press ram of the respective stamping press unit for processing the material pieces and/or the material strips in the first stamping press units.
  • the crankshaft portion or eccentric shaft portion of the first stamping press units are driven via a common driving unit, wherein their rotation axes are identical. They are connected or coupled to one another in such a way that they are rotated forcibly together with the same number of rotations.
  • the second stamping press unit also has a crankshaft portion or eccentric shaft portion which is rotatable with a driving unit about a second rotation axis according to the claims and which serves in interaction with at least an attributed connecting rod to generate a travel movement of the press ram of the second stamping press unit for processing the material pieces and/or the material strips in the second stamping press unit.
  • crankshaft portion or eccentric shaft portion of the second stamping press unit is coupled to the crankshaft portion or eccentric shaft portion of the first stamping press units in such a way, particularly by a rotational positive fit in both rotation directions, that its crankshaft portion or eccentric shaft portion is rotatable forcibly synchronously with the crankshaft portion or eccentric shaft portion of the first stamping press units, preferably with the same number of rotations.
  • the invention relates to a stamping press arrangement with multiple stamping press units arranged in an adjacent way, which have work directions running mutually parallel in a common plane, and with a second stamping press unit, the work direction of which is perpendicular to the work directions of the first stamping press units, such that material processed in this stamping press unit can be guided in direct extension of its work direction into work areas of the first stamping press units.
  • the stamping press units have each a crankshaft portion or eccentric shaft portion, by means of which the stroke movement of the respective press ram is effected via a connecting rod.
  • the crankshaft portions or eccentric shaft portions of the first stamping press units are driven forcibly together with the same number of rotations by a common driving unit and they have a common rotation axis.
  • the crankshaft portion or eccentric shaft portion of the second stamping press unit is coupled to the crankshaft portions or eccentric shaft portions of the first stamping press units in such a way that it rotates forcibly synchronously with the latter.
  • the invention makes it possible to provide in an inexpensive way highly precise and fast stamping press arrangements for the economic large series production of low-tolerance multiple-part stamping and punching products, e.g. container lids with push-in or pull-off tabs (EOEs), which can be opened without tools.
  • container lids with push-in or pull-off tabs EEEs
  • the rotation axis of the crankshaft portion or eccentric shaft portion of the second stamping press unit is parallel to the rotation axis of the crankshaft portions or eccentric shaft portions of the second stamping press units. It is particularly preferred that these rotation axes are identical. In this way, a simple and loss-free or low-loss, respectively, rotational coupling of the crankshaft portions or eccentric shaft portions is possible, e.g. by their rigid mutual connection or by their coupling via a positive fit coupling.
  • first stamping press units have each a separate crankshaft portion or eccentric shaft portion and the crankshaft portions or eccentric shaft portions of the first stamping press units are coupled to one another by a rotational positive fit in both rotation directions, preferably such that they are radially and axially shiftable with respect to one another, wherein this is advantageously done by means of one or more Oldham-couplings.
  • the second stamping press unit has a separate crankshaft portion or eccentric shaft portion which is coupled to the crankshaft portion or eccentric shaft portion of one of the first stamping press units in the way described above.
  • stamping press units make it possible to rule out a transfer of temperature-dependent and stamping-force-dependent deformation forces between the stamping press units via their crankshaft portion or eccentric shaft portion.
  • each one of the first stamping press units has an own receiving plate which is separate from the other stamping press units. In this way it is possible to mechanically decouple from one another to a large extent the structures of the stamping press units in order to avoid a transfer of temperature-dependent and stamping-force-dependent deformation forces between its structures.
  • the receiving plates of the first stamping press unit are formed together, which allows a considerable cost advantage in case certain compromises in terms of precision have to be accepted.
  • the press rams of the stamping press units work each from the top against a receiving plate arranged below.
  • Such concepts have the advantage that the material pieces or material strips to be processed lie on the bottom, fixed tool half due to the gravitational force, thereby simplifying material handling for many applications in contrast to other concepts.
  • crankshaft portions or eccentric shaft portions are each arranged above the press ram, which is preferred, the advantage results that particularly precise stamping press units are possible, because a minimization of the stamping-force-dependent bending of the press ram can be reached by a central force introduction into the press ram, and the actual press ram drive can be formed by very short and rigid components, thereby additionally leading to advantages with respect to the inert masses and thereby with respect to the feasible stamping frequencies.
  • the stamping press arrangement has multiple, preferably three or four first stamping press units according to the claims, arranged in an adjacent way, which are coupled to one another in a common self-carrying structure, preferably each one in sections of the stamping press units which are not charged by stamping forces.
  • “Sections of the stamping press units which are not charged by stamping forces” are provided by components or component portions which do not experience dimension changes or deformation, respectively, due to the stamping force, in operation as intended.
  • the individual stamping press units can be positioned in a precise way with respect to one another and they can be coupled to one another as a fixed unit.
  • the stamping press units are coupled to one another in an area which is substantially not charged by the stamping forces, the further advantage results that practically no deformations due to the stamping forces are transferred between the stamping press units.
  • the two outer ones of the first stamping press units which are coupled to one another in a common structure, are each coupled to a supporting structure via which the structure formed by the first stamping press units is supported on the floor.
  • the connection with the supporting structure is preferably implemented in an area of the stamping press units, which is not charged by the stamping forces.
  • At least one of the supporting structures carries a second stamping press unit according to the claims on its side facing away from the mutually coupled first stamping press units.
  • the at least one second stamping press unit can be positioned precisely with respect to the first stamping press units and it can be connected to them, thus forming a fixed unit.
  • This also makes it possible to set the height of the working plane of the second stamping press unit via the supporting structure or to adjust it to the height of the working planes of the first stamping press units, respectively.
  • a second stamping press unit according to the claims in case of which the receiving plate is carried by a hanging supporting structure.
  • a preferred configuration of this embodiment of the stamping press arrangement according to the invention has two groups of first stamping press units, preferably two groups of each three first stamping press units. These groups of first stamping press units are coupled to one another to a first common self-supporting structure (first group of first stamping press units), preferably each in an area of the respective stamping press units, which is substantially not charged by the stamping forces, and to a second common self-supporting structure (second group of first stamping press units).
  • the first structure and the second structure are coupled to one another at their ends facing one another via a first supporting structure arranged between them, via which these two structures are each supported on the floor with this first end.
  • the structures are each coupled to a further supporting structure, with the first stamping press unit arranged at this second end, via which the respective structure is supported on the floor at its second end.
  • At least one of these further supporting structures carries a second stamping press unit according to the claims on its side which is opposed to the respective first or second structure, respectively, of mutually connected first stamping press units.
  • the driving unit for the first stamping press units according to the claims or the common driving unit for the first and second stamping press units, respectively has no gears between its flywheel and the crankshaft portions or eccentric shaft portions.
  • each one of the first stamping press units according to the claims has an own supply device for supplying individual material pieces into a working area of the respective stamping press unit, preferably a conveyor belt with holes for supplying metal blanks, e.g. metal can shell blanks.
  • stamping press arrangements are particularly suitable for manufacturing container lids with press-in or pull tabs (EOEs) which can be opened without tools.
  • these supply devices are driven via the driving unit for the stamping press units, resulting in the simple implementation of a synchronous drive and in that additional drives are obsolete.
  • no separable clutches are present between the supply devices and the driving unit, such that a forcibly synchronous coupling of the supply devices is present.
  • the supply 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 way.
  • the stamping press arrangement only has precisely one flywheel, precisely one friction and precisely one brake in the drive train for the stamping press units.
  • the first stamping press units and/or the at least one second stamping press unit have each precisely one connecting rod, by means of which the stamping force is introduced centrally into the respective press ram.
  • the first stamping press units and/or the at least one second stamping press unit have each two connecting rods, by means of which the stamping force is introduced symmetrically into the respective press ram.
  • This way of construction is advantageous particularly in case of relatively long press rams, seen in transport direction, or in case of relatively asymmetric press ram load, respectively, because it increases the tilt resistance of the press ram.
  • each one of the stamping press units of the stamping press arrangement has an own mass compensation device. In this way, the dynamic forces acting towards the outside can be diminished or eliminated, respectively.
  • each one of the stamping press units of the stamping press arrangement is adjustable independently from the other stamping press units with respect to press ram stroke and/or closing height.
  • the stamping press arrangement according to the invention provides a maximum of production flexibility and production 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 manufacturing metal can lids with a push-in or a pull-off tab.
  • the advantages of the invention are particularly evident in case of such use of the stamping press arrangement.
  • FIG. 1 shows a front view of a first stamping press arrangement according to the invention
  • FIG. 2 shows a side view of the first stamping press arrangement from the direction S of FIG. 1 ;
  • FIG. 3 shows a horizontal section through the first stamping press arrangement along the line X-X of FIG. 1 ;
  • FIG. 4 shows a partial vertical section through the first stamping press arrangement along the line X-Y of FIG. 2 ;
  • FIG. 5 shows a vertical section through the first stamping press arrangement along the line Z-Z of FIG. 4 ;
  • FIG. 6 shows a view like in FIG. 5 of a variant of the first stamping press arrangement
  • FIG. 7 shows a front view of a second stamping press arrangement according to the invention.
  • FIGS. 1 and 2 show a first stamping press arrangement for manufacturing metal container lids with a push-in or a pull-off tab and which can be opened without tools, once in a front view ( FIG. 1 ) and once in a side view with viewing direction S from the left ( FIG. 2 ).
  • FIGS. 3 and 4 show a horizontal section along the line X-X of FIG. 1 ( FIG. 3 ) and a partial vertical section along the line Y-Y of FIG. 2 ( FIG. 4 ) through the press arrangement, the latter comprises three adjacent stamping presses 4 a , 4 b , 4 c (three first stamping press units according to the invention), in the following called “conversion-presses”, by means of which prefabricated metal sheet lids are provides with different profiles, with a carving for the opening location as well as with an additionally supplied push-in or pull-off tab, respectively.
  • conversion-presses by means of which prefabricated metal sheet lids are provides with different profiles, with a carving for the opening location as well as with an additionally supplied push-in or pull-off tab, respectively.
  • the three conversion presses 4 a , 4 b , 4 c are coupled to one another as common self-supporting structure 4 a - 4 c .
  • the two outer conversion presses 4 a , 4 c of this structure 4 a - 4 c are each coupled to a supporting structure 9 , 11 ; 10 , 11 , via which the structure 4 a - 4 c formed by the three conversion presses 4 a , 4 b , 4 c is supported on the floor.
  • the left supporting structure 9 , 11 consists of a drive housing 9 and a supporting pillar 11
  • the right supporting structure 10 , 11 consists of a supporting section 10 and a supporting pillar 11
  • Said supporting structure 10 , 11 carries a further stamping press 8 (second stamping press unit according to the claims) on its side which is opposed to the conversion presses 4 a , 4 b , 4 c , by means of which the push-in or the pull-off tabs, respectively, are manufactured from a strip material 22 .
  • this press 8 is called “tab press”.
  • the three conversion presses 4 a , 4 b , 4 c are oriented with respect to one another in such a way that they have mutually parallel working directions B and their working planes are in a same plane.
  • the tab press 8 is oriented with respect to the conversion press 4 a , 4 b , 4 c in such a way that its working direction A runs perpendicular to the working directions B of the conversion presses 4 a , 4 b , 4 c and its working plane lies in the same plane, where also the working planes of the conversion presses 4 a , 4 b , 4 c are located.
  • the working direction A of the tab press 8 intersects with the working directions B of the conversion presses 4 a , 4 b , 4 c in the working direction of the conversion presses 4 a , 4 b , 4 c .
  • the push-in or the pull-off tabs, respectively, formed in the working area of the tab press 8 by stamping and reshaping 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 in the working areas of the conversion presses 4 a , 4 b , 4 c , where each of them is detached from the material strip with the respective conversion press 4 a , 4 b , 4 c and are riveted with the metal lids passing through the respective conversion press 4 a , 4 b , 4 c in its working direction B.
  • the transport of the material strip 22 in the working direction A of the tab press 8 through the presses 4 a , 4 b , 4 c is done by means of an advancing device 23 a at the input of the tab press 8 and a pulling device 23 b at the output of the last conversion press, as seen in this direction A.
  • the conversion presses 4 a , 4 b , 4 c comprise each a press ram 1 a , 1 b , 1 c for receiving the moved top conversion tool half (not shown), which work from above against a receiving plate 2 a , 3 a ; 2 b 3 b ; 2 c , 3 c , which is separate from the other presses, for receiving the attributed fixed bottom conversion tool half (not shown).
  • the press rams 1 a , 1 b , 1 c are each guided as vertical shifting via four press ram guides 12 .
  • the tab press 8 comprises a press ram 5 for receiving the moved top tab tool half (not shown), which works from above against a receiving plate 6 , 7 for receiving the attributed fixed bottom tab tool half (not shown).
  • the press ram 5 is also guided as vertical shifting via four press ram guides 21 .
  • the conversion presses 4 a , 4 b , 4 c have each separately formed crank shafts 28 a , 28 b , 28 c (crankshaft portions or eccentric shaft portions according to the claims), each of them being arranged above the respective press ram 1 a , 1 b , 1 c and being coupled to the press ram 1 a , 1 b , 1 c of the respective conversion press 4 a , 4 b , 4 c via a single attributed connecting rod 29 a , 29 b , 29 c , for generating the stroke of the press ram 1 a , 1 b , 1 c of this press.
  • the stamping force is introduced into the press ram 1 a , 1 b , 1 c with the connecting rod 29 a , 29 b , 29 c , in each case centrally via a height-adjustable thrust bearing 39 .
  • the tab press 8 also has a crank shaft 30 (crankshaft portion or eccentric shaft portion according to the claims), which is arranged above its press ram 5 and coupled to the press ram 5 via two connecting rods 31 a , 31 b , for generating the stroke of the press ram 5 of this press 8 .
  • the stamping force is introduced into the press ram 5 with the two connecting rods 31 a , 31 b , symmetrically via two height-adjustable thrust bearings 39 .
  • the rotation axis R 2 of the crank shaft 30 of the tab press 8 and the rotation axis R 1 of the crank shafts 28 a , 28 b , 28 c of the conversion presses 4 a , 4 b , 4 c are identical.
  • the cranks shafts 28 a , 28 b , 28 c , 30 have a rotational positive fit in both rotation directions and are coupled to one another radially and mutually shiftable by means of Oldham-couplings 32 .
  • a common driving unit comprising an outer main drive motor 24 , a friction arrangement and a brake arrangement 34 , 35 with a flywheel 33 , arranged inside the drive housing 9 , as well as a belt drive 25 , 26 arranged at the drive housing 9 below a protecting cover 27 .
  • No gears are arranged between the flywheel 33 and the crank shafts 28 a , 28 b , 28 c , 30 of the presses 4 a , 4 b , 4 c , 8 .
  • each conversion press 4 a , 4 b , 4 c has an own supplying device 13 , 14 , 15 , integrated in its receiving plate, for supplying the metal shell blanks to their working area, each comprising a transfer system 13 and a transport band 15 with holes 16 for receiving the shell blanks.
  • the transport band 15 extends between two deflection pulleys 14 through the respective conversion press 4 a , 4 b , 4 c .
  • the deflections pulleys 14 at the output of the conversion presses 4 a , 4 b , 4 c are each carried by an axle 17 , which is fixedly, with respect to rotation, connected to the respective deflection pulley 14 and which is supported via two bearing blocks 18 in a rotatable way on the structure of the respective conversion press 4 a , 4 b , 4 c .
  • axles 17 of the three conversion presses 4 a , 4 b , 4 c are coupled to one another via two intermediary axles 19 in a rotational positive fitting way in both rotation directions and they are driven by a stepping gear 20 which is coupled to the crank shafts 28 a , 28 b , 28 c , 30 of the presses 4 a , 4 b , 4 c , 8 in a synchronous way with respect to rotation by means of two angle gears 20 a , 20 c and a joint shaft 20 b .
  • No separable clutchess are present between the supplying devices 13 , 14 , 15 , 16 and the driving unit 24 , 25 , 26 , 33 , 34 .
  • each of the presses 4 a , 4 b , 4 c , 8 has a compensation mass 36 a , 36 b , 36 c , 37 which is moved up and down by means of further connecting rods arranged on the respective crank shaft 28 a , 28 b , 28 c , 30 in an opposite direction to the respective press ram 1 a , 1 b , 1 c , 5 , in order to reduce or eliminate, respectively, dynamic forces acting to the outside.
  • FIG. 6 shows a variant of the stamping press arrangement in a vertical section along the line Z-Z of FIG. 4 .
  • the respective connecting rod 29 a , 29 b , 29 c is coupled to the press ram 1 a , 1 b , 1 c of the respective conversion press 4 a , 4 b , 4 c via a lever mechanism, wherein the force introduction is done symmetrically via two pressure tongues 38 .
  • FIG. 7 shows a front view of a second stamping press arrangement according to the invention. It differs from the above mentioned first stamping press arrangement according to the invention only in that it comprises six adjacent conversion presses 4 d , 4 e , 4 f ; 4 g , 4 h , 4 i (six first stamping press units according to the claims), by means of which prefabricated sheet metal shells are provided with different profiles, with a carving for the opening location as well as with a supplied push-in or pull-off tab, respectively.
  • These six conversion presses 4 d , 4 e , 4 f , 4 g , 4 h , 4 i form two groups of each three conversion presses 4 d , 4 e , 4 f ; 4 g , 4 h , 4 i , of which the first group 4 d , 4 e , 4 forms a first common self-supporting structure 4 d - 4 f and the second group 4 g , 4 h , 4 i forms a second common self-supporting structure 4 g - 4 i .
  • the first structure 4 d - 4 f and the second structure 4 g - 4 i are connected to one another via a middle supporting structure 10 a , 11 a (first supporting structure according to the claims) arranged between them, which consists of a supporting portion 10 and a supporting pillar 11 , and they are supported on the floor by means of this supporting structure 10 , 11 .
  • a middle supporting structure 10 a , 11 a first supporting structure according to the claims
  • the first structure 4 d - 4 f is connected at its left end with its outer conversion press 4 d to a further supporting structure consisting of a drive housing 9 and a supporting pillar 11 and it is supported on the floor via this supporting structure 9 , 11 .
  • the second structure 4 g - 4 i is connected at its right end with its outer conversion press 4 i to a further supporting structure consisting of a supporting portion 10 and a supporting pillar 11 and it is supported on the floor via this supporting structure 10 , 11 .
  • This supporting structure 10 , 11 supports on its side which faces away from the conversion presses 4 g , 4 h , 4 i a tab press 8 (second stamping press unit according to the claims), by means of which the push-in or pull-off tabs, respectively, are produced of a material strip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)
  • Presses And Accessory Devices Thereof (AREA)
US15/549,732 2015-02-11 2015-02-11 Stamping press arrangement Abandoned US20180029104A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2015/000018 WO2016127263A1 (de) 2015-02-11 2015-02-11 Stanzpressenanordnung

Publications (1)

Publication Number Publication Date
US20180029104A1 true US20180029104A1 (en) 2018-02-01

Family

ID=52544232

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/549,732 Abandoned US20180029104A1 (en) 2015-02-11 2015-02-11 Stamping press arrangement

Country Status (6)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2020146085A1 (en) * 2019-01-10 2020-07-16 Stolle Machinery Company, Llc Transfer belt assembly for a six-out conversion system
CN114472646A (zh) * 2021-12-27 2022-05-13 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
CN115608835A (zh) * 2022-12-16 2023-01-17 福建华工智能设备有限公司 一种储能集装箱箱体板材加工用冲压设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281777A1 (de) * 1987-02-12 1988-09-14 Bruderer Ag Stanzpresse
US4799846A (en) * 1986-11-25 1989-01-24 The Minster Machine Co. Transfer belt for can end conversion press
EP0439684A1 (de) * 1990-01-30 1991-08-07 Bruderer Ag Stanzpresse
US7234907B1 (en) * 1993-05-12 2007-06-26 Jerry Artrip System for forming and securing lift-tabs to can ends having a drive belt

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60235Y2 (ja) * 1979-12-28 1985-01-07 住友重機械工業株式会社 サイドプレス又はサイドシヤ−を備えたプレス
JPS6074900U (ja) * 1983-10-28 1985-05-25 株式会社神戸製鋼所 複数のスライドを有する機械プレス
JP2678956B2 (ja) * 1991-12-27 1997-11-19 株式会社小松製作所 トランスファプレスのフレーム構造
US5511920A (en) * 1993-10-14 1996-04-30 Artrip; Donald System and method for use when forming lift-tab can end assemblies
JPH09239473A (ja) * 1996-03-05 1997-09-16 Mitsubishi Materials Corp 陽圧缶およびヒートシール缶蓋
US20070166131A1 (en) * 2002-10-22 2007-07-19 Cook Stephen T Can end conversion system
CN105050748B (zh) * 2013-03-15 2017-12-15 斯多里机械有限责任公司 转换压机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799846A (en) * 1986-11-25 1989-01-24 The Minster Machine Co. Transfer belt for can end conversion press
EP0281777A1 (de) * 1987-02-12 1988-09-14 Bruderer Ag Stanzpresse
EP0439684A1 (de) * 1990-01-30 1991-08-07 Bruderer Ag Stanzpresse
US7234907B1 (en) * 1993-05-12 2007-06-26 Jerry Artrip System for forming and securing lift-tabs to can ends having a drive belt

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020146085A1 (en) * 2019-01-10 2020-07-16 Stolle Machinery Company, Llc Transfer belt assembly for a six-out conversion system
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
CN114472646A (zh) * 2021-12-27 2022-05-13 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
CN115608835A (zh) * 2022-12-16 2023-01-17 福建华工智能设备有限公司 一种储能集装箱箱体板材加工用冲压设备

Also Published As

Publication number Publication date
EP3256273B1 (de) 2018-10-17
JP2018510780A (ja) 2018-04-19
SG11201705792WA (en) 2017-08-30
EP3256273A1 (de) 2017-12-20
WO2016127263A1 (de) 2016-08-18
ES2706275T3 (es) 2019-03-28

Similar Documents

Publication Publication Date Title
US20180029104A1 (en) Stamping press arrangement
CN107520362B (zh) 转换压机
EP0088094A1 (de) Verfahren und vorrichtung zur herstellung von metallischen bauteilen.
JP4831226B2 (ja) 複数工程用プレス機およびプレス加工方法
US10352385B2 (en) Drive assembly for conversion system
EP3045302B1 (de) Pressmaschine
CN108136476B (zh) 用于转换系统的驱动组件
CN102319832B (zh) 蒸发器散热片自动上料排片装置的工作方法
RU2748306C1 (ru) Прокатная клеть
KR102621419B1 (ko) 블랭킹 및 딥 드로잉 일체형 트랜스퍼 프레스
CN108941431A (zh) 一种柱状工件自动进料锻造装置
GB2109728A (en) Stack press
GB1427739A (en) Press for forming sheet material
CN107139515A (zh) 一种伺服压力机
JPH0396732A (ja) 往復動装置
SE203762C1 (de)

Legal Events

Date Code Title Description
AS Assignment

Owner name: BRUDERER AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAFNER, JOSEF THOMAS;REEL/FRAME:043947/0894

Effective date: 20170629

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION