EP2441533B1 - Werkzeug zum Stanzen von Werkstücken und Verfahren zum Sortieren von gestanzten Werkstücken - Google Patents

Werkzeug zum Stanzen von Werkstücken und Verfahren zum Sortieren von gestanzten Werkstücken Download PDF

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Publication number
EP2441533B1
EP2441533B1 EP10461531A EP10461531A EP2441533B1 EP 2441533 B1 EP2441533 B1 EP 2441533B1 EP 10461531 A EP10461531 A EP 10461531A EP 10461531 A EP10461531 A EP 10461531A EP 2441533 B1 EP2441533 B1 EP 2441533B1
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EP
European Patent Office
Prior art keywords
workpiece
workpieces
holding plate
conveyor belt
die
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.)
Not-in-force
Application number
EP10461531A
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English (en)
French (fr)
Other versions
EP2441533A1 (de
Inventor
Robert Krupa
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.)
Kirchhoff Polska Sp Z Oo
Original Assignee
Kirchhoff Polska Sp Z Oo
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Publication date
Application filed by Kirchhoff Polska Sp Z Oo filed Critical Kirchhoff Polska Sp Z Oo
Priority to PL10461531T priority Critical patent/PL2441533T3/pl
Priority to EP10461531A priority patent/EP2441533B1/de
Publication of EP2441533A1 publication Critical patent/EP2441533A1/de
Application granted granted Critical
Publication of EP2441533B1 publication Critical patent/EP2441533B1/de
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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
    • 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
    • B21D35/003—Simultaneous forming, e.g. making more than one part per stroke
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process
    • 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/02—Ejecting devices
    • B21D45/04—Ejecting devices interrelated with motion of tool

Definitions

  • the present invention relates to a tool for stamping workpieces according to the preamble of claim 1 and a method for sorting workpieces according to the preamble of claim 10.
  • a tool and such a method are, for example, disclosed in document CN-B-101011716 .
  • a typical press station such a mechanical or a hydraulic press
  • the stamped workpieces are fed onto a conveyor belt, via which they are transported for further processing stages or to transport containers to be provided to a customer.
  • workpieces of different kinds are stamped in one pressing cycle, they may have to be sorted.
  • a typical method for sorting workpieces is to sort the workpieces already output from the press station and placed on the conveyor belt, such as described in a US patent application US20090200141A1 . It discloses a panel sorting device disposed at a downstream side of a press line at the transfer conveyor configured to sort the workpieces to two places on a panel chute for transferring the workpieces. Such device occupies considerable space on the production line, requiring a transfer conveyor having a length equal at least to the size of several workpieces.
  • the aim of the invention is to provide such a device.
  • the object of the invention is a tool for stamping workpieces from a material moving cyclically downstream, the tool comprising a die set with a double-workpiece die and a movable upper plate with a holding plate configured to stamp a first workpiece and a second workpiece in one working cycle, wherein the working cycle comprises a lowering phase wherein the holding plate is moved downwards to stamp the workpieces followed by a lifting phase wherein the holding plate is moved upwards and a feed phase wherein the material is moved downstream and the workpieces are moved outside the die set, wherein the tool further comprises a carrier attached to the movable upper plate with the holding plate, and wherein the die comprises a recess to which a portion of the carrier can fit during the lifting phase so as to lift the first workpiece above the second workpiece before the feed phase.
  • the carrier may comprise a support arm lowered with respect to the holding plate and distanced downstream from the holding plate by an arm range, an upwards-tiltable collector mounted on the support arm and extending upstream from the support arm to a distance of the arm range and the width of the first workpiece, a guide mounted on the support arm and extending downstream from the support arm, wherein the upper surfaces of the collector and of the guide are shaped to form a downwards-inclined track, on which the first workpiece can slide.
  • the collector may comprise a pair of collector arms.
  • the guide may comprise a pair of guide arms.
  • the carrier may comprise a curved guide configured to rotate the first workpieces.
  • the curved guide may have a shape of a brachistochrone curve.
  • the carrier can be configured to transport the lifted first workpiece to a first conveyor belt distinct from a second conveyor belt to which the second workpiece is fed from the die.
  • the first conveyor belt can be placed in line and running in opposite direction than the second conveyor belt.
  • the first conveyor belt can be placed in parallel and next to the second conveyor belt.
  • Another object of the invention is a method for sorting workpieces output from a tool for stamping workpieces from a material moving cyclically downstream, the tool comprising a die set with a double-workpiece die and a movable upper plate with a holding plate configured to stamp a first workpiece and a second workpiece in one working cycle, wherein the working cycle comprises a lowering phase wherein the holding plate is moved downwards to stamp the workpieces followed by a lifting phase wherein the holding plate is moved upwards and a feed phase wherein the material is moved downstream and the workpieces are moved outside the die set, the method comprising the step of lifting the first workpiece above the second workpiece with a carrier before the feed phase.
  • the first workpiece can be transported by the carrier to a first conveyor belt distant from a second conveyor belt to which the second workpiece is fed from the die.
  • the stamping tool according to the invention is shown in different points of its working cycle on Figs. 1-6 .
  • the stamping tool comprises a die set with a double-workpiece die 111 and a movable upper plate with a holding plate 113 configured to stamp, in one working cycle, a first workpiece 102 and a second workpiece 103.
  • the double-workpiece die 111 may, in the single working cycle, press the material 101 in stages progressive along its movement downstream.
  • the working cycle comprises a lowering phase, as shown in Figs. 1-3 , wherein the holding plate 113 is moved downwards to stamp the workpieces 102, 103.
  • a lifting phase follows, as shown in Figs. 4-5 , wherein the holding plate 113 is moved upwards.
  • a feed phase occurs as shown in Fig. 6 , wherein the material 101 is moved downstream at a distance equal to the width of the first and second workpiece 102, 103, and the pressed workpieces 102, 103 are moved outside the die set.
  • a carrier 121 is attached to the movable upper plate with the holding plate 113.
  • the carrier 121 is configured to separate the position of the first workpiece 102 with respect to the second workpiece 103, thereby sorting the workpieces 102, 103 and allowing feeding of the workpieces 102, 103 to different locations of further processing stages.
  • the first workpiece 102 can be fed to a first conveyor belt 132 and the second workpiece 103 can be fed to a second conveyor belt 133, as shown in Fig. 7 .
  • the carrier 121 comprises a support arm 122 lowered with respect to the holding plate 113, by a distance not exceeding the distance between the die 111 and the holding plate 113 at the beginning of the lowering phase, and distanced downstream from the holding plate 113 by an arm range.
  • An upwards-tiltable collector 123 is mounted on the support arm 122 and extends upstream from the support arm 122 to a distance of the arm range and the width of the first workpiece 102.
  • a guide 124 is mounted on the support arm 122 and extends downstream from the support arm 122.
  • the upper surfaces of the collector 123 and of the guide 124 are shaped such as to form a downwards-inclined track, on which the first workpiece 102 can slide, preferably by its own weight, as shown in fig. 6 .
  • the support arm 122, and therefore the collector 123 are located above the die 111.
  • the end portion of the collector 123 which is longer than the arm range, touches the die 111 with the material 101 from which the workpieces 102, 103 are to be formed.
  • the movement of the end portion of the collector 123 is limited by the material 101 on the die 111, which causes tilt of the collector 123 upwards, until the end portion loses contact with the material 101.
  • the die 111 comprises a recess 114 to which the end portion of the collector 123 can fit.
  • the end portion of the collector 123 fits into the recess 114 and the collector 123 reduces its upwards tilt under its own weight or under a force of a counter-tilt spring mounted at a pivot joint 125 of the collector 123.
  • the end portion of the collector 123 is located in the recess 114 below the first workpiece 102.
  • the end portion of the collector 123 contacts the first workpiece 102 and lifts it upwards.
  • the first workpiece 102 is lifted above the second workpiece 103.
  • the downwards inclination of the collector 123 causes the first workpiece 102 to slide along the collector 123 and then along the guide 124.
  • the first workpiece 102 moves along the carrier 121 towards the first conveyor belt 132 and the second workpiece 103 is moved outside the die set towards the second conveyor belt 133.
  • the collector 123 and the guide 124 may have their shapes adapted to the shape of the first workpiece 102 such as to provide efficient carrying out of the first workpiece 102 from the die set.
  • they may comprise a pair of rod-shaped collector arms 123A, 123B and a pair of rod-shaped guide arms 124A, 124B.
  • the carrier 121 may be shaped to transmit the first workpieces 102 to a conveyor belt placed in a predefined position.
  • the guide arms 124A, 124B may have a curved shape, configured to transmit the first workpieces 102 to a first conveyor belt 132 in line with the second conveyor belt 133, to which the second workpieces 103 are fed, the conveyor belts 132, 133 moving in opposite directions.
  • the guide arms 124A, 124B may have a shape of a brachistochrone, which allows transmission of the workpiece in minimum time, thereby positively impacting the efficiency of production.
  • the workpieces may be fed to the same conveyor belt, and their sorting is effected by the fact that the first workpieces 102 are rotated by the guide 124 by 90 degrees with respect to the second workpieces 103.
  • the guide 124 may have a linear shape, configured to transmit the first workpieces 102 to a first conveyor belt 142 placed in parallel and next to the second conveyor belt 143, to which the second workpieces 103 are fed, the conveyor belts 142, 143 moving in the same direction, as shown in Fig. 8 , or in opposite directions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Specific Conveyance Elements (AREA)
  • Discharge Of Articles From Conveyors (AREA)

Claims (11)

  1. Werkzeug zum Stanzen von Werkstücken (102, 103) aus einem sich zyklisch stromab bewegenden Material (101), wobei das Werkzeug umfasst:
    - einen Formsatz mit einer Doppel-Werkstückform (111) und einer beweglichen oberen Platte mit einer Halteplatte (113), konfiguriert, um ein erstes Werkstück (102) und ein zweites Werkstück (103) in einem Arbeitszyklus zu stanzen,
    - worin der Arbeitszyklus eine Absenkphase aufweist, worin die Halteplatte (113) zum Stanzen der Werkstücke (102, 103) abwärts bewegt wird, gefolgt von einer Hubphase, worin die Halteplatte (113) aufwärts bewegt wird, und einer Förderphase, worin das Material (101) stromab bewegt wird und die Werkstücke (102, 103) aus dem Formsatz heraus bewegt werden,
    dadurch gekennzeichnet, dass
    - es ferner einen Träger (121) aufweist, der an der beweglichen oberen Platte mit der Halteplatte (113) angebracht ist,
    - und worin die Form (111) eine Vertiefung (114) aufweist, in die ein Abschnitt (123) des Trägers (121) während der Hubphase eingesetzt werden kann, um vor der Förderphase das erste Werkstück (102) über das zweite Werkstück (103) anzuheben.
  2. Das Werkzeug nach Anspruch 1, worin der Träger (121) umfasst:
    - einen Tragarm (122), der in Bezug auf die Halteplatte (113) mit Abstand stromab von der Halteplatte (113) um eine Armreichweite abgesenkt wird,
    - einen aufwärts kippbaren Kollektor (123), der an dem Tragarm (122) angebracht ist und sich stromauf von dem Tragarm (122) zu einem Abstand der Armreichweite und die Breite des ersten Werkstücks (102) erstreckt,
    - eine Führung (124), die an dem Tragarm (122) angebracht ist und sich stromab von dem Tragarm (122) erstreckt,
    - worin die Oberseiten des Kollektors (123) und der Führung (124) zur Bildung einer abwärts geneigten Bahn geformt sind, auf der das erste Werkstück (102) gleiten kann.
  3. Das Werkzeug nach Anspruch 2, worin der Kollektor (123) ein Paar von Kollektorarmen (123A, 123B) aufweist.
  4. Das Werkzeug nach Anspruch 2 oder 3, worin die Führung (124) ein Paar von Führungsarmen (124A, 124B) aufweist.
  5. Das Werkzeug nach einem der Ansprüche 2 bis 4, worin der Träger (121) eine gekrümmte Führung (124) aufweist, die konfiguriert ist, um die ersten Werkstücke zu drehen.
  6. Das Werkzeug nach Anspruch 5, worin die gekrümmte Führung (124) die Form einer brachistochronen Kurve hat.
  7. Das Werkzeug nach einem der vorhergehenden Ansprüche, worin der Träger (121) konfiguriert ist, um das angehobene erste Werkstück (102) zu einem ersten Förderband (132, 142) zu transportieren, das sich von einem zweiten Förderband (133, 143) unterscheidet, zu dem das zweite Werkstück (103) von der Form (111) gefördert wird.
  8. Das Werkstück nach Anspruch 7, worin das erste Förderband (132) zum zweiten Förderband (133) in Linie und in entgegengesetzter Richtung laufend angeordnet ist.
  9. Das Werkzeug nach Anspruch 7, worin das erste Förderband (142) parallel und nächst dem zweiten Förderband (143) angeordnet ist.
  10. Verfahren zum Sortieren von Werkstücken (102, 103), die von einem Werkzeug zum Stanzen von Werkstücken aus einem sich zyklisch stromab bewegenden Material (101) ausgegeben werden, wobei das Werkzeug einen Formsatz mit einer Doppel-Werkstückform (111) und einer beweglichen oberen Platte mit einer Halteplatte (113) umfasst, konfiguriert, um ein erstes Werkstück (102) und ein zweites Werkstück (103) in einem Arbeitszyklus zu stanzen, worin der Arbeitszyklus eine Absenkphase aufweist, worin die Halteplatte (113) zum Stanzen der Werkstücke (102, 103) abwärts bewegt wird, gefolgt von einer Hubphase, worin die Halteplatte (113) aufwärts bewegt wird, und einer Förderphase, worin das Material (101) stromab bewegt wird und die Werkstücke (102, 103) aus dem Formsatz heraus bewegt werden, dadurch gekennzeichnet, dass es den Schritt umfasst, vor der Förderphase das erste Werkstück (102) über das zweite Werkstück (103) mit einem Träger (121) anzuheben.
  11. Das Verfahren nach Anspruch 10, gekennzeichnet durch das Transportieren des ersten Werkstücks (102) mit dem Träger (121) zu einem ersten Förderband (132, 142) mit Abstand von einem zweiten Förderband (133, 143), zu dem das zweite Werkstück (103) von der Form (111) gefördert wird.
EP10461531A 2010-10-15 2010-10-15 Werkzeug zum Stanzen von Werkstücken und Verfahren zum Sortieren von gestanzten Werkstücken Not-in-force EP2441533B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL10461531T PL2441533T3 (pl) 2010-10-15 2010-10-15 Narzędzie do tłoczenia wytłoczek i sposób sortowania wytłoczek
EP10461531A EP2441533B1 (de) 2010-10-15 2010-10-15 Werkzeug zum Stanzen von Werkstücken und Verfahren zum Sortieren von gestanzten Werkstücken

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10461531A EP2441533B1 (de) 2010-10-15 2010-10-15 Werkzeug zum Stanzen von Werkstücken und Verfahren zum Sortieren von gestanzten Werkstücken

Publications (2)

Publication Number Publication Date
EP2441533A1 EP2441533A1 (de) 2012-04-18
EP2441533B1 true EP2441533B1 (de) 2013-04-03

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PL (1) PL2441533T3 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5858870B2 (ja) * 2012-06-01 2016-02-10 本田技研工業株式会社 パネル部品の製造方法及びプレスライン
US10322444B2 (en) 2017-01-17 2019-06-18 Honda Motor Co., Ltd. Apparatus, system, and method for manipulation of nested stamped parts
CN106881428B (zh) * 2017-03-24 2018-08-14 芜湖安普机器人产业技术研究院有限公司 一种自动脱模机构
CN113579043B (zh) * 2021-10-08 2021-12-07 成都市和乐门业有限公司 一种同步进出料的金属板材冲压成型系统及加工方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5917456Y2 (ja) * 1981-04-02 1984-05-22 太平洋工業株式会社 順送型における被加工物跳ね出し装置
JPS61127834U (de) * 1985-01-24 1986-08-11
JP4825553B2 (ja) 2006-03-14 2011-11-30 株式会社小松製作所 パネル振分方法およびパネル振分装置
CN101011716B (zh) * 2006-09-29 2010-05-12 伟业重工(安徽)有限公司 铰链页片套裁式带卷管级进模

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PL2441533T3 (pl) 2013-08-30
EP2441533A1 (de) 2012-04-18

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