EP0811439A2 - Dispositif pour la perforation des tÔles - Google Patents

Dispositif pour la perforation des tÔles Download PDF

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Publication number
EP0811439A2
EP0811439A2 EP97108834A EP97108834A EP0811439A2 EP 0811439 A2 EP0811439 A2 EP 0811439A2 EP 97108834 A EP97108834 A EP 97108834A EP 97108834 A EP97108834 A EP 97108834A EP 0811439 A2 EP0811439 A2 EP 0811439A2
Authority
EP
European Patent Office
Prior art keywords
control
plunger
control slide
sheet
punches
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
EP97108834A
Other languages
German (de)
English (en)
Other versions
EP0811439B1 (fr
EP0811439A3 (fr
Inventor
Robert Czapka
Alfred Bareis
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.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP0811439A2 publication Critical patent/EP0811439A2/fr
Publication of EP0811439A3 publication Critical patent/EP0811439A3/fr
Application granted granted Critical
Publication of EP0811439B1 publication Critical patent/EP0811439B1/fr
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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/246—Selection of punches
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts

Definitions

  • the invention relates to a device for perforating metal sheets with the features according to the preamble of claim 1.
  • Perforated sheets are used extensively in numerous industries, namely as screens and filters in the food industry, in mining and in gravel pits, as protective covers for phono devices, construction and machine tools, as partitions and decorations, as components in household appliances, in office furniture, in Aircraft and in industrial construction.
  • perforating wide presses for sheet metal with continuous or periodically interrupted hole patterns made from strip or sheet material in Series production, and strip presses to produce single sheets, larger sheet formats and thicknesses with individual hole patterns.
  • the sheet metal plates While in a strip press the sheet metal plates can be moved relative to the perforating tool with a clamping table in two mutually perpendicular coordinates, in the case of a perforating wide press feed rollers, the sheet metal plates or strips convey between an upper tool, usually a plurality of punches, and a lower tool. a die, step by step in synchronism with the work cycle of the press in a feed direction.
  • the punches of the perforating wide press are arranged in rows across the feed direction. They are kept in a stamp holder.
  • a plunger of the press pushes it through a stamp guide plate and presses it through the sheet into corresponding holes in the die.
  • a scraper prevents the sheet from sticking to the stamp when it is withdrawn. It is rigid or is shifted out of phase with the plunger.
  • the invention has for its object to produce common hole patterns in series with simple means, which can have an increasing and / or decreasing hole-free area in the feed direction, e.g. Circles, triangles, trapezoids etc.
  • a control slide from one side transversely to the feed direction are gradually pushed into the power flow, so that one or more punches are additionally activated after each feed. This creates triangular or trapezoidal hole patterns. If the control spool is shorter than the associated row of punches and if it is gradually moved back and forth, serpentine hole patterns can be created.
  • stamps can still be activated separately, even if they are only a small one Have a distance from each other, since the control spool can be adjusted in any small steps.
  • An electrical or hydraulic stepper motor which drives the spool via pinions, toothed belts and a toothed rack which is attached to the control slide, expediently serves this purpose.
  • the stepper motor is mounted directly on the plunger, so that it follows the movement of the plunger and no relative movement between the plunger and the stepper motor has to be taken into account.
  • it is advantageous to attach it to the press body and to compensate for the resulting relative movement during the ram stroke by means of a sliding sleeve that works telescopically with a drive spindle.
  • More lace patterns e.g. B. circles, ellipses, parabolas, etc. can be made with several spools that can be adjusted together or separately depending on the pattern. They are expediently offset from one another in the feed direction and arranged to overlap. Furthermore, one or more rows of stamps of the same or different lengths can be assigned to each control slide. The end parts of the control slide can be designed so that only one stamp of a row of stamps is activated when moving.
  • stamps of different lengths are used and the control slide consists of several superimposed strips that can be adjusted against each other in different positions.
  • Each position is given a total thickness in the stroke direction, which is matched to the punch lengths so that only the punches that are long enough to penetrate the sheet at the given total thickness are active.
  • a perforating wide press generally contains the following essential assemblies, namely a perforating device 1, a feed device 2, a separating and notching device 3, a separating shear 4 and corresponding drive devices (not shown in more detail).
  • the assemblies are mounted in a press body 5.
  • the feed device 2 comprises two pairs of feed rollers 6, which are each mounted in front of and behind the perforating device 1 in the press body 5 and between which a sheet 39 is gradually conveyed by the perforating wide press in time with the press stroke.
  • the feed direction 7 and the stroke direction 16 are marked with arrows.
  • the perforating device 1 includes a press table 8 on which a die 9 is fastened by means of clamping devices 10.
  • a perforated plate 11 forms the upper part of the die 9, over which the sheet 39 is guided.
  • the perforated plate 11 and the die 9 have holes 12 and bores 13 into which punches 15 engage during the perforation process by punching out corresponding sheet metal disks from the sheet 39.
  • the stamps 15 are held longitudinally displaceably in a stamp holding plate 18.
  • the punch guide plate 17 guides the punch 15 in the longitudinal direction and at the same time ensures that the plate 39 does not get stuck during the upward stroke. It can be rigid or, as shown, can be moved out of phase with the plunger movement by a separate wiper drive 19.
  • the stamp holding plate 18 is attached to a plunger 14. This is driven by an eccentric drive, not shown, and carries out a stroke movement in cycles.
  • a free space 22 is provided in the plunger 14 above the plunger 15, into which the plunger 15 can retreat, provided that they are not activated by a control device.
  • control device consists of one or more control slides 20, which are displaced transversely to the feed direction 7 into the free space 22 and fill the space between the stamps 15 to be activated and the plunger 14. So that the power flow between the plunger 14 and the plunger 15 is established so that they can penetrate through the plate 39.
  • the control valve (s) 20 are guided in a slide guide 21 attached to the tappet 14.
  • a stepper / servo motor 38 drives them via a sliding sleeve 37, a drive spindle 36, pinions 35, 33, 31, 27, toothed belts 34 and 30 and via a hollow shaft 32, shaft 28 and rack 26.
  • the stepper / servo motor 38 and the sliding sleeve 37 are on Press body 5 mounted, while the other drive parts are attached to the plunger 14 and participate in the lifting movement with this.
  • the relative movement between the ram 14 and the press body 5 compensates for the sliding sleeve 37, which works telescopically with the drive spindle 36.
  • control slides 20 can be adjusted jointly by one drive; expediently, however, they are driven independently of one another by a plurality of drives.
  • the variant according to FIG. 4 shows, in addition to the control slides 20, control strips 23, 24, which lie one above the other at latching steps 25.
  • the control strips 23, 24 can be displaced relative to one another and thereby assume different latching positions in which they have a different overall thickness 40 in the stroke direction 16. Different gaps can thus be realized between the stamps 15 and the control slides 20 or the control strips 23, 24.
  • more complex perforated patterns can be produced, e.g. B. can be controlled in the locking step shown with the greatest overall thickness 40 of the control slide 20, the shortest stamp 15, while the longer stamp 15 are always activated regardless of the position of the control slide 20. If the control strips 23, 24 are moved into a position with a lower overall thickness 40, the shorter punches 15 remain independent of the position of the Control slide 20 inactive, while the longer stamp 15 are activated by the control slide 20.
  • the control slide 20 of FIG. 5 are arranged offset to each other in the feed direction 7 and overlap by a certain amount.
  • the stamps 15 are also arranged in staggered rows.
  • a control slide 20 can activate the punches 15 on one side of the sheet, while the other control slide 20 activates the punches 15 on the other side of the sheet.
  • the number of stamps 15 assigned to the respective control slides 20 can be the same or different and can be divided symmetrically or asymmetrically.
  • a series of stamps 15 can also be assigned to a control slide 20.
  • an end edge 41 e.g. B. bevels
  • one or more punches 15 of one row can be activated in front of the punches 15 of another row in the direction of adjustment of the control slide 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP97108834A 1996-06-07 1997-06-03 Dispositif pour la perforation des tôles Expired - Lifetime EP0811439B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19622843A DE19622843A1 (de) 1996-06-07 1996-06-07 Vorrichtung zum Perforieren von Blechen
DE19622843 1996-06-07

Publications (3)

Publication Number Publication Date
EP0811439A2 true EP0811439A2 (fr) 1997-12-10
EP0811439A3 EP0811439A3 (fr) 1998-03-18
EP0811439B1 EP0811439B1 (fr) 2000-08-16

Family

ID=7796368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108834A Expired - Lifetime EP0811439B1 (fr) 1996-06-07 1997-06-03 Dispositif pour la perforation des tôles

Country Status (3)

Country Link
EP (1) EP0811439B1 (fr)
DE (2) DE19622843A1 (fr)
ES (1) ES2150171T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0963802A3 (fr) * 1998-06-10 2001-04-18 Schuler Pressen GmbH & Co. KG Presse à perforer avec système d'entrainement d'un poinçon unique
EP1234922A1 (fr) * 2001-02-19 2002-08-28 Mäder AG Innenausbau Procédé et dispositif pour la fabrication d'un élément insonorisant plat
CN107855405A (zh) * 2017-12-26 2018-03-30 海泉风雷新能源发电股份有限公司 一种钢带冲孔装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1030004B1 (nl) * 2021-12-10 2023-07-10 Soenen Tech Nv Perforatiepers met vier schuiven en werkwijze voor het aansturen van een perforatiepers met vier schuiven

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE848845A (nl) * 1976-11-29 1977-03-16 Ponsgereedschap,
AT405145B (de) * 1993-12-17 1999-05-25 Felsner Franz Anordnung und verfahren zur spanlosen bearbeitung von material oder werkstücken

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0963802A3 (fr) * 1998-06-10 2001-04-18 Schuler Pressen GmbH & Co. KG Presse à perforer avec système d'entrainement d'un poinçon unique
EP1234922A1 (fr) * 2001-02-19 2002-08-28 Mäder AG Innenausbau Procédé et dispositif pour la fabrication d'un élément insonorisant plat
CN107855405A (zh) * 2017-12-26 2018-03-30 海泉风雷新能源发电股份有限公司 一种钢带冲孔装置

Also Published As

Publication number Publication date
ES2150171T3 (es) 2000-11-16
EP0811439B1 (fr) 2000-08-16
DE59702182D1 (de) 2000-09-21
EP0811439A3 (fr) 1998-03-18
DE19622843A1 (de) 1997-12-11

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