EP0413955B1 - Vorrichtung zum Runden und Weiterfördern von Blechzuschnitten für Dosenzargen - Google Patents

Vorrichtung zum Runden und Weiterfördern von Blechzuschnitten für Dosenzargen Download PDF

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Publication number
EP0413955B1
EP0413955B1 EP90113603A EP90113603A EP0413955B1 EP 0413955 B1 EP0413955 B1 EP 0413955B1 EP 90113603 A EP90113603 A EP 90113603A EP 90113603 A EP90113603 A EP 90113603A EP 0413955 B1 EP0413955 B1 EP 0413955B1
Authority
EP
European Patent Office
Prior art keywords
metal blank
sheet
bending
rounded
guide rail
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
EP90113603A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0413955A3 (en
EP0413955A2 (de
Inventor
Othmar Stieger
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.)
Elpatronic AG
Original Assignee
Elpatronic 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 Elpatronic AG filed Critical Elpatronic AG
Priority to AT90113603T priority Critical patent/ATE88388T1/de
Publication of EP0413955A2 publication Critical patent/EP0413955A2/de
Publication of EP0413955A3 publication Critical patent/EP0413955A3/de
Application granted granted Critical
Publication of EP0413955B1 publication Critical patent/EP0413955B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • 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
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2676—Cans or tins having longitudinal or helical seams

Definitions

  • a device of this type is known from DE-A-23 19 447.
  • the sheet metal blank must be moved axially, with its two edges guided on the guide rail being inserted into a groove in a subsequent so-called Z-rail.
  • two devices are provided for this purpose in a device according to DE-A-33 30 171, which are arranged below the bending rollers and on both sides outside the area of the rounded sheet metal blank and grasp each with carriers from the outside over the edge of the sheet metal blank in order to push it further axially.
  • the invention is based on the object of making the means for the axial conveyance of the rounded sheet metal blanks more space-saving and with less installation effort in a device of the type mentioned.
  • the means for further conveying the sheet metal blanks in the length range of the bending rollers require practically no space outside of the rounded blanks.
  • This also means that the arrangement of guide shells which surround the space occupied by the rounded blank is no longer impaired. Since the rod-shaped conveying elements engage close to the guided edges of the rounded blank (seen in its cross section), their position does not have to be adapted to the respective diameter.
  • the lines of action of the feed forces exerted by the conveying members on the sheet metal blank are adjacent to the frictional guides of the longitudinal edges, which is why the sheet metal blank is only exposed to slight canting moments during its axial movement.
  • a push rod is arranged on the slide at a distance from the two conveyor members and essentially parallel to them outside the space enclosed by the rounded sheet metal blank, which, in addition to the two conveyor members and against them, with a pawl mounted on it Angle offset attacks at the rear edge of the rounded sheet metal blank. In this way, the feed forces required for axially moving the rounded sheet metal blank can be distributed evenly.
  • the carriage can be driven via a crank drive which has a crank attached to an output shaft and a connecting rod with two connecting rod parts which telescopically guided to each other and connected to each other by a latching device which triggers when overloaded.
  • the articulated coupling drive preferably has two cranks that bwz on the drive shaft. attached to the output shaft and connected to each other by a coupling member of adjustable length.
  • the length of the coupling element can be changeable, for example.
  • flat sheet metal blanks 10 are rounded cylindrically and welded at their edges parallel to the cylinder axis.
  • the devices required for these operations are arranged on a common machine frame 11. 2, coming from a stacking device (not shown), is fed to a round station 13 in a horizontal direction of movement 12 and leaves it rounded in a likewise horizontal direction of movement 14, which includes a right angle with the original direction of movement 12, and becomes one Welding station 15 supplied.
  • the round station 13 includes a pair of horizontally lying, vertically superposed transport rollers 16 and 17, which can be driven together to convey a sheet metal blank 10 in the direction of movement 12 through an adjustable roller gap formed between them.
  • a table 20 adjoins the lower transport roller 17 horizontally.
  • a pre-bending body 21 Arranged in front of the transport rollers 16 and 17 is a pre-bending body 21 which, in a vertical section according to FIG. 2, has a profile which tapers in a wedge shape in the direction of the roller gap between the transport rollers 16 and 17.
  • the pre-bending body 21 is parallel to the transport rollers 16 and 17 Axis swiveling and infinitely lockable; In addition, the horizontal distance of the pre-bending body 21 from the gap between the transport rollers 16 and 17 is adjustable.
  • a cover plate 22 Connected to the transport rollers 16 and 17 is a cover plate 22, which is also arranged in a stationary manner above the table 20 and is also horizontal. At the end of the cover plate 22 and the table 20, horizontally lying bending rollers 24 and 25 are arranged vertically one above the other. The nip between the bending rollers 24 and 25 is adjustable.
  • the sheet metal blank 10 which gets into the nip between the transport rollers 16 and 17, is pressed down by the pre-bending body 21, so that its front edge abuts against the lower transport roller 17. During the further movement in the direction 12 caused by the transport rollers 16 and 17, the sheet metal blank 10, with the exception of its front edge region, loses the bend imposed on it by the pre-bending body 21; Most of the sheet metal blank 10 is bent downwards and upwards once, which reduces internal stresses. On the way from the transport rollers 16 and 17 to the bending rollers 24 and 25, the sheet metal blank 10 is guided between the table 20 and the cover plate 22. Before the transport rollers 16 and 17 release the rear edge region of the sheet metal blank 10, the front edge region which has remained curved downwards is gripped by the bending rollers 24 and 25.
  • a guide 27 is arranged, which is curved in the shape of an arc around the narrowest point of the gap between the bending rollers 24 and 25 and carries a deflecting body 28 which can be adjusted correspondingly in the shape of an arc.
  • the deflector 28 is arranged so that it The sheet metal blank 10 moving between the bending rollers 24 and 25, the front edge region of which is already bent downwards for the reasons mentioned, bends overall in the same direction as the front edge region, in the example shown downwards, that is to say away from the upper bending roller 24.
  • a catch bar 29 is arranged, which extends over the entire length of the two bending rollers 24, 25 and is designed as a component of a height-adjustable guide rail 30.
  • the guide rail 30 is aligned with a so-called Z-rail 31, which is common in electrical resistance welding machines for welding pinch seams, has a Z-shaped cross-sectional profile and extends to the welding station 15.
  • the sheet metal blank 10 which is bent by the bending rollers 24 and 25, rounds around the guide rail 30 until it abuts with its front edge in the previous direction of movement 12 against the left side of the catch strip 29 in FIGS. 2 and 3, as a result of which the latter Edge between the lower bending roller 25 and the guide rail 30 is caught. As soon as the rear edge of the bent sheet metal blank 10 in the previous direction of movement 12 is released by the bending rollers 24 and 25, it jumps into the space between the lower bending roller 25 and the guide rail 30 and lies on the right side in FIGS Catch strip 29.
  • the space that is required for rounding the sheet metal blank 10 is enclosed by two shells 32 and 33.
  • the shell 32 is arranged on the left in FIGS. 2 and 3, facing the transport rollers 16 and 17, of the catch bar 29 and the guide rail 30 and has a fixed position a C-shaped cross-sectional profile;
  • the shell 33 is arranged on the side of the catch bar 29 and the guide rail 30 facing away from the transport rollers 16 and 17, has an L-shaped cross-sectional profile and is fastened to an adjustable support plate 34.
  • the support plate 34 is supported in a hinge-like manner on a roller-shaped elastomer body 35 and can be pivoted about this elastomer body by means of a piston-cylinder unit 36.
  • the lower part of its cross section of the guide rail 30 is let into an electrode support arm 37 which is fastened to the machine frame 11, extends in the direction of movement 14 to the welding station 15 and also carries the Z-rail 31.
  • the rounded sheet metal blank 10 encloses the electrode support arm 37 at a radial distance, so that it can be moved along the guide rail 30 to the free end of the electrode support arm 37 on the right in FIG. 1 and can be moved away from it there.
  • a plate-shaped transport rail 38 is arranged in a vertical plane, on which a slide 40 can be pushed back and forth in and against the direction of movement 14 by means of ball guides 39.
  • a horizontal journal 41 is fastened to the slide 40 at right angles to the transport rail 38, on which a rocker 42 is mounted so that it can be swiveled up and down between stops 43 and 44.
  • Two curves 45 are formed on the rocker 42, each of which controls a lever 46.
  • the two levers 46 are each attached to one of two shafts 47, which are mounted parallel to each other and to the transport rail 38 on the carriage 40 and each carry a slim, rod-shaped conveying member 48.
  • the conveyor members 48 extend parallel to the transport rail 38 and are each eccentric on the associated one Shaft 47 attached so that their distance from each other can be changed by rotating the shafts 47 by pivoting the levers 46 attached to them. 2, 3 and 9, the two conveying members 48 are shown in a rest position, in which they are arranged radially within the rounded sheet metal blank 10 and move backwards from the rounded sheet metal blank 10 by a backward movement of the carriage 40, counter to the direction of movement 14 let it pull out. In Fig. 10, the conveyor members 48 are shown in a working position in which they push the next forward stroke of the carriage 40 in the direction of movement 14 against the circular edge of the rounded sheet metal blank 10, which is relative to this direction, and push it forward.
  • a vertical support 49 is fastened to the carriage 40, on which a push rod 50 parallel to the conveyor members 48 is clamped in a height-adjustable manner.
  • the push rod 50 is set such that it can be moved past the outside thereof without touching it.
  • a pawl 51 is mounted at the front end of the push rod 50. This is shown in Fig. 6 with full lines in its rest position and with dash-dotted lines in its working position.
  • the pawl 51 In the rest position, the pawl 51 does not touch the rounded sheet metal blank 10 any more than the push rod 50 itself during the backward stroke of the slide 40; during the forward stroke of the slide 40, however, the pawl 51 abuts against the rear edge of the rounded sheet metal blank 10 in order to advance the rounded sheet metal blank 10 from the rounding station 13 into the welding station 15 together with the two conveying members 48.
  • the pawl 51 like the two conveying members 48, is controlled by pivoting the rocker 42.
  • the pawl 51 is connected to the rocker 42 by a rope 52 which, together with a jacket 53, forms a Bowden cable.
  • the jacket 53 is supported on the one hand on an abutment 54 fastened to the slide 40 and on the other hand at the rear end of the push rod 50.
  • the pivoting of the rocker 42 with respect to the carriage 40 required to control the conveying members 48 and the pawl 51 is derived from its reciprocating movements.
  • a brake body 55 is displaceably guided in the carriage 40 towards the transport rail 38 and is biased by a spring 56 in such a way that it constantly acts on the carriage 40 in a braking manner.
  • the driving forces required to move the carriage 40 are derived from a motor 57 and introduced into the rocker 42 via an articulated coupling drive 58 and a crank drive 59 in such a way that they have a torque with respect to the journal 41.
  • the articulated coupling drive 58 includes a drive shaft 60 rotated continuously or intermittently by the motor 57, which is connected by a first crank 61 fastened to it via a coupling member 62 to a second crank 63 which is fastened to an output shaft 64 parallel to the drive shaft 60 at a distance .
  • the articulated coupling drive 58 is adjustable in the example shown in that the length of the coupling member 62 is variable. Instead or in addition, the effective length of the crank 61 and / or the crank 63 can be changed in that the coupling member 62 is articulated on the crank 61 or 63 at a more or less large radial distance from the drive shaft 60 or the output shaft 64.
  • the connecting rod guide 66 is articulated on the crank 65 and contains a spring 68 which is set with an adjusting screw 69 in such a way is biased that it presses a locking pin 70 with a predetermined force into a recess 71 of the connecting rod 67.
  • the locking pin 70 When overloaded, the locking pin 70 is pressed out of the recess 71, so that the connecting rod 67 can move relative to the connecting rod guide 66 within limits, which are determined by the fact that a pin 72 is attached to the connecting rod guide 66, which is in a longitudinal groove 73 of the connecting rod 67 engages.
  • the end of the connecting rod 67 remote from the connecting rod guide 66 is connected to the rocker 42 by a joint 74.
  • the joint 74 is arranged at a distance parallel to the axle journal 41 in such a way that a force transmitted from the connecting rod 67 to the rocker 42 and directed forward in the direction of movement 14 causes the rocker to pivot upward 42 effected according to FIG. 10, whereby the conveyor members 48 and the pawl 51 get into their working position. If, on the other hand, the connecting rod 67 transmits a force opposing the direction of movement 14 to the rocker 42, this is pivoted downward, so that the conveyor members 48 and the pawl 51 assume their rest position according to FIGS. 6 and 9.
  • the welding station 15 is of a conventional type. Its main components are an upper electrode roller 75, which is mounted on a vertically movable, downwardly biased electrode head 76, and a lower electrode roller 77, which is mounted on the front end of the electrode carrier arm 37 on the right in FIG. 1.
  • An electrode wire 78 runs over the electrode rollers 75 and 77, which is removed as a round wire from a storage container (not shown) and runs over deflection rollers 79 and 80 with a wire brake arranged in between and through a rolling device 81.
  • the electrode wire 78 runs over further deflection rollers 82 and 83, loops around the upper electrode roller 75, runs from there further over deflection rollers 84 to 87, wraps around the lower electrode roller 76 and continues from there via deflection rollers 88 to 93 to a take-off device 94 and a chopper 95, from which the electrode wire 78 is chopped into small pieces which are discharged through a channel 96.
  • each sheet blank 10 is pushed by the two conveying members 48 and the pawl 51 through a roller cage 97 and a calibration roller ring 98.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Making Paper Articles (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Resistance Welding (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Chutes (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Replacement Of Web Rolls (AREA)
  • Television Signal Processing For Recording (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP90113603A 1989-08-22 1990-07-16 Vorrichtung zum Runden und Weiterfördern von Blechzuschnitten für Dosenzargen Expired - Lifetime EP0413955B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90113603T ATE88388T1 (de) 1989-08-22 1990-07-16 Vorrichtung zum runden und weiterfoerdern von blechzuschnitten fuer dosenzargen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3044/89 1989-08-22
CH3044/89A CH680714A5 (it) 1989-08-22 1989-08-22

Publications (3)

Publication Number Publication Date
EP0413955A2 EP0413955A2 (de) 1991-02-27
EP0413955A3 EP0413955A3 (en) 1991-04-10
EP0413955B1 true EP0413955B1 (de) 1993-04-21

Family

ID=4247358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113603A Expired - Lifetime EP0413955B1 (de) 1989-08-22 1990-07-16 Vorrichtung zum Runden und Weiterfördern von Blechzuschnitten für Dosenzargen

Country Status (14)

Country Link
US (1) US5120177A (it)
EP (1) EP0413955B1 (it)
JP (1) JPH0734938B2 (it)
KR (1) KR930007072B1 (it)
CN (1) CN1020684C (it)
AT (1) ATE88388T1 (it)
BR (1) BR9004127A (it)
CH (1) CH680714A5 (it)
CZ (1) CZ282348B6 (it)
DE (4) DE3928940A1 (it)
DK (1) DK169658B1 (it)
ES (1) ES2041084T3 (it)
FI (1) FI904097A0 (it)
SU (1) SU1831397A3 (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH680714A5 (it) * 1989-08-22 1992-10-30 Elpatronic Ag
CH686665A5 (de) * 1992-08-26 1996-05-31 Maegerle Karl Lizenz Verfahren zur Herstellung von Rohrkoerper fuer Verpackungstuben.
DE59510211D1 (de) * 1994-08-10 2002-06-27 Elpatronic Ag Bergdietikon Verfahren und Vorrichtung zum Runden von Blechstücken
US8561445B2 (en) * 2008-10-21 2013-10-22 Smi & Hydraulics, Inc. Rounding system and method used in the manufacture of wind towers
CH700092A2 (de) * 2008-12-09 2010-06-15 Soudronic Ag Vorrund-Element an einem Rundapparat.
CN102259140B (zh) * 2011-07-05 2013-04-17 日照光慧机械设备有限公司 全自动太阳能外桶加工机
CN102626819A (zh) * 2012-04-05 2012-08-08 汕头市新青罐机有限公司 电阻焊罐身焊接机的成圆装置
JP7027122B2 (ja) * 2017-10-27 2022-03-01 シロキ工業株式会社 車両用ドアサッシュのシーム溶接方法
CN107914415B (zh) * 2017-12-08 2023-08-04 汕头市虹桥包装实业有限公司 可稳定传送的片状传送物存放装置
CN108555078A (zh) * 2018-04-09 2018-09-21 汕头市信力制罐设备有限公司 一种马口铁成圆方法及装置
CN108746264B (zh) * 2018-05-18 2019-07-23 张玉芙 全自动包装钢带穿扣折弯切断一体机及穿扣折弯方法
GB201815121D0 (en) 2018-09-17 2018-10-31 Crown Packaging Technology Inc Welding of can bodies
CN109127925A (zh) * 2018-10-26 2019-01-04 河北科技大学 输送辊轴头自动冲压设备
CN113843628B (zh) * 2021-10-28 2023-03-28 武昌工学院 基于机器人的过滤筒制造的完整工艺系统与工艺
CN117380855B (zh) * 2023-12-11 2024-02-20 常州菲莫斯桶业有限公司 一种金属桶生产装置以及生产工艺

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Publication number Priority date Publication date Assignee Title
DE446638C (de) * 1925-10-21 1927-07-06 Wotan Werke Akt Ges Selbstausloesendes Getriebe fuer Werkzeugmaschinen
US3001637A (en) * 1958-12-17 1961-09-26 American Can Co Conveyor mechanisms
CH519371A (de) * 1970-02-10 1972-02-29 Opprecht Paul Verfahren zum automatischen Herstellen von Dosenblechkörpern und Schweissmaschine zum Ausführen des Verfahrens
JPS4817235U (it) * 1971-07-02 1973-02-27
CH553012A (de) * 1972-06-05 1974-08-30 Opprecht Paul Vorrichtung zum runden von zargen.
US3934324A (en) * 1975-02-14 1976-01-27 Grotnes Machine Works, Inc. Method and apparatus for forming automotive wheel rim blanks
DE2559671C2 (de) * 1975-03-19 1982-08-12 Opprecht, Paul, 8962 Bergdietikon, Aargau Vorrichtung zum halb- oder vollautomatischen elektrischen Widerstands- Längsnaht-Quetschnahtschweißen von Dosenkörpern
CH621499A5 (it) * 1977-06-10 1981-02-13 Paul Opprecht
IT8249012A0 (it) * 1982-08-20 1982-08-20 Fmi Mecfond Aziende Mecc Saldatrice elettrica a resistenza per corpi scatolari con mezzi perfezionati per la calandratura della fascetta metallica, e il trasporto dei corpi calandrati fino alla stazione di saldatura
CH682906A5 (de) * 1984-09-25 1993-12-15 Elpatronic Ag Aufreissbares Dosenteil sowie Verfahren und Vorrichtung zu dessen Herstellung.
CH669130A5 (de) * 1985-06-11 1989-02-28 Elpatronic Ag Verfahren und vorrichtung zum runden von blechen, insbesondere fuer dosenkoerper.
CH667831A5 (de) * 1985-08-21 1988-11-15 Elpatronic Ag Maschine zum verschweissen von laengsraendern gerundeter dosenzargen.
CH670212A5 (it) * 1986-05-28 1989-05-31 Elpatronic Ag
CH671893A5 (it) * 1987-05-05 1989-10-13 Elpatronic Ag
CH671945A5 (it) * 1987-05-07 1989-10-13 Elpatronic Ag
CH680714A5 (it) * 1989-08-22 1992-10-30 Elpatronic Ag

Also Published As

Publication number Publication date
EP0413955A3 (en) 1991-04-10
BR9004127A (pt) 1991-09-03
CN1020684C (zh) 1993-05-19
KR910004267A (ko) 1991-03-28
CS9003865A2 (en) 1991-10-15
FI904097A0 (fi) 1990-08-20
DK192190A (da) 1991-02-23
DK192190D0 (da) 1990-08-13
CH680714A5 (it) 1992-10-30
JPH0394919A (ja) 1991-04-19
KR930007072B1 (ko) 1993-07-29
ES2041084T3 (es) 1993-11-01
DE3928940A1 (de) 1991-02-28
ATE88388T1 (de) 1993-05-15
DE4023157C2 (it) 1992-07-16
CZ282348B6 (cs) 1997-07-16
DE3928959C1 (it) 1990-08-09
US5120177A (en) 1992-06-09
JPH0734938B2 (ja) 1995-04-19
DE59001240D1 (de) 1993-05-27
DK169658B1 (da) 1995-01-09
CN1051875A (zh) 1991-06-05
SU1831397A3 (en) 1993-07-30
DE3928940C2 (it) 1992-07-16
EP0413955A2 (de) 1991-02-27
DE4023157A1 (de) 1991-02-28

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