EP0941779A1 - Material-Zuführeinheit für Presse - Google Patents

Material-Zuführeinheit für Presse Download PDF

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Publication number
EP0941779A1
EP0941779A1 EP98104091A EP98104091A EP0941779A1 EP 0941779 A1 EP0941779 A1 EP 0941779A1 EP 98104091 A EP98104091 A EP 98104091A EP 98104091 A EP98104091 A EP 98104091A EP 0941779 A1 EP0941779 A1 EP 0941779A1
Authority
EP
European Patent Office
Prior art keywords
press
feeding
feeding device
members
motion
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.)
Withdrawn
Application number
EP98104091A
Other languages
English (en)
French (fr)
Inventor
Renato Guarino
Gennaro Del Gaudio
Giulio Picone
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.)
Battaglia Bergomi Claudia
Original Assignee
Battaglia Bergomi Claudia
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 Battaglia Bergomi Claudia filed Critical Battaglia Bergomi Claudia
Priority to EP98104091A priority Critical patent/EP0941779A1/de
Publication of EP0941779A1 publication Critical patent/EP0941779A1/de
Withdrawn legal-status Critical Current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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • 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

Definitions

  • the present invention relates to the large number production of metallic cans by means of pressing.
  • the present invention concerns to a stock feeding device of a press for producing covers for such cans from substantially flat disks, this last processing also known as “conversion" of said covers.
  • presses for carrying out steel or aluminium cans, used mainly for containing preserved foods or drinks, presses opportunely arranged for making the can components, and eventually for assembling more components, are used.
  • presses are normally used, fit to form the cover progressively from a circular shell, in correspondence of consecutive moulding dies, while the shell is carried step by step on a continuous conveyor belt.
  • Such belts carry the shells on one or more parallel lines, consecutively in correspondence of related die lines where the shells are progressively converted.
  • the press also applies a tab to the cover, fit to facilitate the can opening, in correspondence of a suitable die.
  • Tabs are provided by a feeding device, arranged transversally to the shell conveyor belt and to the dies, disposing each tab at the exact position in correspondence of the related forming cover, with phase relationship with the operation of the other press components.
  • Tabs are generally made by a known device, near the press, on a continuous belt of metallic sheet, and are carried immediately toward the feeding device. Alternatively the continuous belts with already preformed tabs are made elsewhere and supplied subsequently to feeding device. Tabs are arranged consecutively in the belt, and are eventually placed side by side on more lines, according to the press configuration. Once the tabs are applied, their working scraps, namely the belt residues, are triturated and carried elsewhere.
  • the US-A-4.723.882 describes a tab feeder device comprising a plate, which is bolted to the press frame.
  • the crankshaft of the tab feeder is coupled to a gearing, which is connected to a driveshaft and a gear box providing a change of the motion direction.
  • Such gear box is connected to a second crankshaft by a belt, which is driven by the main crankshaft of the press.
  • US-A-4.568.230 describes a tab feeder in a press for converting covers of cans and the like.
  • the feeder is mounted on the press bed and slide, so as the forces are distributed in substantially symmetrical manner over the opposed working areas of the bed and slide. It receives the intermittent rotary motion from the press power shaft, by means of a gear box and belts.
  • a rather common drawback of the known tab feeding devices consists in that, for own nature, tab belts have the tendency to get jammed in the transport and application mechanisms. In that case the presses must be stopped, the jammed tabs must be eliminated and the belt correctly replaced.
  • the feeding device which is arranged transversally to the cover feed axle, must be removed from the own working position, and therefore replaced at the end of the maintenance. This is a rather long and complex operation, since the belts, leading the motion to the feeder device members, must be detached, so losing their phase relationship, that must be restored and verified before restarting the press. This fact causes obviously serious decreases of press productivity, which is a particularly expensive apparatus, and therefore remarkable economic damages.
  • the EP-0.397.750 discloses a tab feeding device whose carrier is pivoted at a suitable hinge axle.
  • the whole device, comprehensive of driving and tab feeding means, may be therefore pivoted to allow the access to press by an operator, without losing the phases.
  • the object of the present invention is to propose a tab feeding device of a press for producing can covers fit to be easily removed, allowing the access to the press, and therefore immediately replaced without losing working phases.
  • Further object of the present invention is to propose a motion of said feeding device having simple realization, low cost and high reliability.
  • the press 1 is provided with mean feeding members 2 of the pieces 3, constituted by an endless conveyor belt having consecutively housing lines, designed to housing said pieces 3 and transporting them progressively toward following known working stations.
  • the main feeding members 2 are moved step by step by main motion means 4, constituted by a reduction unit connected to the press power members through a belt 4a.
  • Said work stations are supported by the base 7 of the press 1, substantially constituted by a bed 7a and by a bolster 7b, overhanging the bed 7a.
  • Work stations include a die series forming the converted cover progressively from the circular shell.
  • a stock constituted by a tab is applied to the cover 3. This tab is fed step by step by the feeding device 10 object of the invention, with a phase relationship with the driving of the main feeding members 2.
  • Such device is placed laterally to the press 1. It comprises substantially an input tab group 11, fixed on the horizontal plate 15a of an L-shaped frame 15 (see also figure 5) and designed to feed transversally the press 1 with a belt containing the preformed tabs; an output group 12, fixed to the same horizontal plate 15a; a plurality of drive belts 17, engaged with said input 11 and output 12 groups, and with first motion drive members 13, joined to the vertical plate 15b of said frame 15.
  • These latter are constituted by a motion return group of gear-wheel type, engaging slidingly and sideways driving engaged members 30.
  • These are constituted by a spline shaft 31, horizontally placed in a position substantially parallel to said main feeding members 2 and supported by a couple of sphere bearings 32a,32b, fixed to the base 7 of the press 1.
  • the spline shaft is connected, at an end with the main motion means 4 previously mentioned.
  • the feeding device 10 has also drive means 20, slidingly supporting the feeding device, at a direction parallel to the mean feeding members 2, between an operative extreme position A (see figures 1 and 2) and an inoperative extreme position B (figures 3 and 4), at which said device is carried for allowing inside access to the press 1.
  • the drive means 20 are constituted by a couple of parallel slides, respectively upper 21 and lower 22, fixed longitudinally and laterally to the base 7 of the press 1.
  • the slides 21,22 slidingly engage correspondent splined sliders 16a,16b,16c, opportunely fixed to the vertical plate 15b of the frame 15.
  • feeding device 10 particularly concerning its motion for allowing inside access to the press 1, is quite intuitive.
  • the frame 15 is in the operative extreme position A, that is the normal operation of the device 10.
  • the spline slider 16b is next to the end of upper slide 21, while the spline slider 16c is next to the end of the lower slide 22.
  • the gear-wheel of the return group 14 engages the spline shaft 31 next to the end of this latter that is more distant from the main motion means 4.
  • the device 10 after having been carried in its inoperative extreme position B, has the gear-wheel of the return group 14 engaging the spline shaft 31 near to the end of this latter connected to the main motion means 4. It is evident that, with the device 10 in this latter position, the access to the inside parts of the press 1 is entirely free.
  • An advantage of the invention consists firstly in having got an extremely simple motion of the feeding device 10, and therefore reliable and with lower production costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
EP98104091A 1998-03-09 1998-03-09 Material-Zuführeinheit für Presse Withdrawn EP0941779A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98104091A EP0941779A1 (de) 1998-03-09 1998-03-09 Material-Zuführeinheit für Presse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98104091A EP0941779A1 (de) 1998-03-09 1998-03-09 Material-Zuführeinheit für Presse

Publications (1)

Publication Number Publication Date
EP0941779A1 true EP0941779A1 (de) 1999-09-15

Family

ID=8231548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104091A Withdrawn EP0941779A1 (de) 1998-03-09 1998-03-09 Material-Zuführeinheit für Presse

Country Status (1)

Country Link
EP (1) EP0941779A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873221A (zh) * 2012-10-24 2013-01-16 吴江华鹏制罐厂 一种推拉模
CN103111505A (zh) * 2013-02-20 2013-05-22 浙江花园电子器材有限公司 自动拉伸仪

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568230A (en) * 1984-05-15 1986-02-04 Dayton Reliable Tool & Mfg. Co. Two-out belt system
US4723882A (en) * 1986-11-25 1988-02-09 The Minster Machine Company Apparatus for forming easy-open can ends
WO1989006575A1 (en) * 1988-01-13 1989-07-27 Service Tool Die & Mfg. Company Dual lane conversion system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568230A (en) * 1984-05-15 1986-02-04 Dayton Reliable Tool & Mfg. Co. Two-out belt system
US4723882A (en) * 1986-11-25 1988-02-09 The Minster Machine Company Apparatus for forming easy-open can ends
WO1989006575A1 (en) * 1988-01-13 1989-07-27 Service Tool Die & Mfg. Company Dual lane conversion system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873221A (zh) * 2012-10-24 2013-01-16 吴江华鹏制罐厂 一种推拉模
CN103111505A (zh) * 2013-02-20 2013-05-22 浙江花园电子器材有限公司 自动拉伸仪

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