EP0847849B1 - Presse zum Formen von hergestellten Gegenständen aus Ton - Google Patents

Presse zum Formen von hergestellten Gegenständen aus Ton Download PDF

Info

Publication number
EP0847849B1
EP0847849B1 EP19970121283 EP97121283A EP0847849B1 EP 0847849 B1 EP0847849 B1 EP 0847849B1 EP 19970121283 EP19970121283 EP 19970121283 EP 97121283 A EP97121283 A EP 97121283A EP 0847849 B1 EP0847849 B1 EP 0847849B1
Authority
EP
European Patent Office
Prior art keywords
press
speed
shaft
electric motor
mould
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
EP19970121283
Other languages
English (en)
French (fr)
Other versions
EP0847849A2 (de
EP0847849A3 (de
EP0847849B2 (de
Inventor
Giorgio Bertola
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.)
BONGIOANNI MACCHINE S.R.L.
Original Assignee
Bongioanni Macchine SpA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11415088&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0847849(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bongioanni Macchine SpA filed Critical Bongioanni Macchine SpA
Publication of EP0847849A2 publication Critical patent/EP0847849A2/de
Publication of EP0847849A3 publication Critical patent/EP0847849A3/de
Application granted granted Critical
Publication of EP0847849B1 publication Critical patent/EP0847849B1/de
Publication of EP0847849B2 publication Critical patent/EP0847849B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B30B1/261—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks by cams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/12—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds on the circumference of a rotating drum

Definitions

  • the present invention refers to improved presses for clay manufactured articles, such as tiles and the like, and particularly to so-called barrel presses. Presses of this kind include both presses actuated by a cam and presses actuated by an eccentric-shaft (gear crank).
  • Such barrel presses are driven by an A.C. electric motor, a D.C. or "brushless” electric motor, and have a well defined production rate (rotation per minute) which is dictated by the requirements of the article to be moulded, with an angular speed that is substantially constant, both during the proper moulding step and during the approaching and withdrawing paths.
  • An object of the present invention is to overcome the above mentioned drawbacks and limitations, and particularly to increase the press productivity without altering the article quality.
  • EP-A-536 804 discloses a press machine for performing plastic deformation of a workpiece, such as punching metallic sheet material blanks in order to produce lead frames for IC.
  • a servomotor controlled by a computer and receiving from a sensor information data concerning the ram position provides for moving the tool at an approaching speed in which the tool is moved at a set high speed until it starts to contact the workpiece, at a working speed substantially lower than said approaching speed and such as not to generate high noise while working on the workpiece, and at a separating speed substantially larger than said working speed.
  • EP-A-404 350 discloses a press for crimping electrical terminals to leads, comprising an electric motor connected to a slide ram of the press by way of reduction gearing and an eccentric drive shaft, and a control circuit associated with an encoder supplying the angular position of the drive shaft in order to control the speed of the drive motor for ensuring a proper return of the ram to home position.
  • the rotation speed of the cam is changed by means acting on the rotation speed of the motor driving such member, the motor being preferably a DC. motor or a "brushless" motor.
  • the rotation speed is kept substantially low and anyhow adapted to the moulding of the article, e.g. a tile, along the rotation arc when the moulds are in contact with the clay, and is then increased to a maximum during the lifting of the upper mould, and then decreased when the upper mould is lowered so as to reach the point at which the moulding starts with an optimum speed for moulding the article.
  • the means for controlling the motor rotation speed employs positional references of the encoder type, fitted to the cam shaft, that supplies suitable information to the control and command unit of the motor (an A.C. or "brushless” motor) in accordance with the press type, in order to modify the moulding cam timing in a predetermined optimum way.
  • said encoder supplies the angular position of the eccentric-shaft to allow a change of the sinusoidal moulding curve, typical of an eccentric-shaft press, into a predetermined optimum curve, similar to that of a cam press.
  • a press 1 of the cam-actuated type for moulding clay articles, such as tiles and the like comprises a structure on which an electric motor 2 is mounted and through a kinematic chain 4 such motor drives with a reciprocating motion the upper half-mould 5 of a mould 3.
  • the motor drives a pulley or barrel 12 and the press is also known as a barrel press.
  • the kinematic chain further comprises a suitably shaped cam 9 rotatable about a shaft 8.
  • At least an encoder 7 is mounted to the shaft 8, and is adapted to detect the shaft angular position and supply such information to a unit 13 (Fig. 7) controlling the speed of the motor 2.
  • Fig.s 2 and 4 illustrate a press 10 for producing clay articles in which the kinematic chain 14 comprises an eccentric shaft 19 rotatably mounted on a shaft 18.
  • the other components of the press 10 substantially correspond to the components of the press 1 and are indicated by the same numeral references.
  • At least an encoder 7 is mounted to the shaft 18, and is adapted to measure the angular position of such shaft and supply such information to unit 13 for controlling the speed of the motor 2.
  • Fig. 7 is a block diagram illustrating the arrangement of the invention.
  • the motor 2 applies a reciprocating motion to the upper half-mould of the mould 3.
  • the rotation of the motor 2 is controlled by the device 13 that receives information about the angular position of the shaft and through known control devices, typically a programmed microprocessor, accelerates the shaft rotation when the half-mould starts to be lifted, and decelerates the shaft rotation at a properly selected point during the lowering step, typically in the first portion of the downward path, so that the upper half-mould reaches the position at which the moulding starts with an optimum speed for moulding the article.
  • known control devices typically a programmed microprocessor
  • the electric motor of the press will turn at a geater speed during the inactive step, will decelerare when approaching to the working step, will mould the article at a desired speed, and will be again accelerated to the greater speed during the next inactive step.
  • the motor speed during the inactive step is about 23 r.p.m., and during the working step is of about 17 rpm.
  • the present invention accomplished a remarkable increase in the production rate, without altering the quality of the moulded article.
  • Figure 6 shows two curves illustrating the stroke or displacement s of the half-mould as a function of the time in an eccentric-shaft press.
  • the solid line corresponds to a constant speed of the motor, while the dash and point line depicts a mould displacement in accordance with the present invention. It is evident the longer duration of the mould closing when the half-mould moves at a low speed for a much longer time than in a conventional eccentric-shaft press.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Claims (9)

  1. Presse (1, 10) zum Formen von aus Ton hergestellten Gegenständen wie Fliesen, umfassend:
    einen Elektromotor (2);
    eine Form (3);
    eine kinematische Kette (4, 14), um die obere Halbform (5) der Form (3) in eine vertikale hin- und hergehende Bewegung zu versetzen, die durch die Rotation des Elektromotors (2) angetrieben ist, wobei die vertikale hin- und hergehende Bewegung eine Form-Phase umfasst, während der sich die obere Halbform in Kontakt mit dem Ton befindet und der Gegenstand geformt wird, eine der Form-Phase unmittelbar folgende inaktive Phase, während der die Halbform in Bezug auf den Ton angehoben wird, und eine der inaktiven Phasen unmittelbar folgende und der Form-Phase unmittelbar vorausgehende Annäherungs-Phase;
    eine Steuereinheit (13);
    mindestens eine Einrichtung (7), die auf einen Schaft der kinematischen Kette (4, 14) zur Erfassung von dessen Winkelposition aufgepasst ist und die an die Steuereinheit (13) gekoppelt ist, um die Umdrehungsgeschwindigkeit des Elektromotors (2) als eine Funktion der Winkelposition zu ändern,
    dadurch gekennzeichnet, dass während der Form-Phase der Elektromotor (2) auf eine erste vorbestimmte positive Optimalgeschwindigkeit gebracht wird;
    während der inaktiven Phase der Elektromotor (2) auf eine zweite Geschwindigkeit gebracht wird, die wesentlich größer als die erste Geschwindigkeit ist; und
    während der Annäherungs-Phase der Elektromotor (2) abgebremst wird, um die Form-Phase mit der ersten positiven Geschwindigkeit zu erreichen.
  2. Presse nach Anspruch 1, dadurch gekennzeichnet, dass die erste Geschwindigkeit ungefähr 17 Umdrehungen/Minute und die zweite Geschwindigkeit ungefähr 23 Umdrehungen/Minute beträgt.
  3. Presse nach Anspruch 1, dadurch gekennzeichnet, dass die kinematische Kette (4) einen Nocken (9) umfasst.
  4. Presse nach Anspruch 3, dadurch gekennzeichnet, dass das Mittel (7) zur Erfassung der Winkelposition mindestens eine auf den Schaft (8) des Nockens (9) montierte Kodiereinrichtung zur Erfassung der Winkelposition des Schafts umfasst.
  5. Presse nach Anspruch 1, dadurch gekennzeichnet, dass die kinematische Kette (4) einen exzentrischen Schaft (19) umfasst.
  6. Presse nach Anspruch 5, dadurch gekennzeichnet, dass das Mittel (7) zur Erfassung der Winkelposition mindestens eine auf den Schaft (18) des Exzenters (19) montierte Kodiereinrichtung zur Erfassung der Winkelposition des Schafts umfasst.
  7. Presse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Elektromotor (2) ein Gleichstrom-Elektromotor ist.
  8. Presse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Elektromotor in (2) vom bürstenlosen Typ ist.
  9. Presse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Presse (1, 10) eine Fasspresse ist.
EP19970121283 1996-12-10 1997-12-04 Presse zum Formen von aus Ton hergestellten Gegenständen Expired - Lifetime EP0847849B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96TO000998A IT1289725B1 (it) 1996-12-10 1996-12-10 Presse a tamburo, in particolare per manufatti in argilla, perfezionate
ITTO960998 1996-12-10

Publications (4)

Publication Number Publication Date
EP0847849A2 EP0847849A2 (de) 1998-06-17
EP0847849A3 EP0847849A3 (de) 1999-03-31
EP0847849B1 true EP0847849B1 (de) 2003-05-14
EP0847849B2 EP0847849B2 (de) 2006-04-12

Family

ID=11415088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970121283 Expired - Lifetime EP0847849B2 (de) 1996-12-10 1997-12-04 Presse zum Formen von aus Ton hergestellten Gegenständen

Country Status (4)

Country Link
EP (1) EP0847849B2 (de)
DE (1) DE69721949T3 (de)
ES (1) ES2198524T5 (de)
IT (1) IT1289725B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20001139A1 (it) * 2000-12-07 2002-06-07 Bongioanni Macchine Srl Pressa meccanica per la produzione di tegole.
FR2817795B1 (fr) * 2000-12-08 2003-06-13 Tech Et De Realisations Ind Bu Presse
ITTO20070124A1 (it) 2007-02-21 2008-08-22 Bongioanni Stampi S R L Stampo per la formatura di tegole in argilla e metodo per realizzare detto stampo.
CN104960231A (zh) * 2015-06-26 2015-10-07 姚旺东 一种冲压制棒机
CN105946265B (zh) * 2016-06-14 2017-12-05 芜湖同创模具机械有限公司 一种高效紧凑式自动压型装置
CN106424288A (zh) * 2016-10-20 2017-02-22 宁波博信机械制造有限公司 一种采用凸轮传动且具有死点保压功能的冲床

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH255903A (de) * 1947-06-14 1948-07-31 Rieter Arthur Drucknocken für Falzziegel-Revolverpresse.
EP0536804B1 (de) * 1986-12-29 1996-08-21 Ishii Tool & Engineering Corporation Verfahren zum Betrieb einer Presse
GB8914501D0 (en) * 1989-06-23 1989-08-09 Amp Gmbh Press with control circuit arrangement
DE4401499A1 (de) * 1994-01-20 1995-08-03 Haendle Gmbh & Co Kg Presse zum Verpressen keramischer Massen, insbesondere zum Herstellen von Dachziegeln
US5588344A (en) * 1994-06-13 1996-12-31 Murata Machinery, Ltd. Electric servo motor punch press ram drive
US5669257A (en) * 1994-12-28 1997-09-23 Yazaki Corporation Method of crimping terminal and apparatus for the same

Also Published As

Publication number Publication date
DE69721949T3 (de) 2006-11-23
EP0847849A2 (de) 1998-06-17
ES2198524T3 (es) 2004-02-01
EP0847849A3 (de) 1999-03-31
IT1289725B1 (it) 1998-10-16
EP0847849B2 (de) 2006-04-12
ES2198524T5 (es) 2006-11-16
ITTO960998A1 (it) 1998-06-10
DE69721949D1 (de) 2003-06-18
DE69721949T2 (de) 2004-03-11

Similar Documents

Publication Publication Date Title
US8113032B2 (en) Punch device
CN102596527A (zh) 用于成形装置的顶出装置
EP0847849B1 (de) Presse zum Formen von hergestellten Gegenständen aus Ton
US20030066323A1 (en) Overload protection control method for pressing machine
US5878789A (en) Mechanical press machine for forming semiconductor packages
US5682941A (en) Device for producing molds
JP2002219600A (ja) コンピュータ数値制御プレス装置
CN2224046Y (zh) 一种冲床片料自动送取装置
JP2002144099A (ja) サーボモータ駆動プレス機械
JP4109775B2 (ja) プレス機械
CN106696241B (zh) 一种连续供料的全自动丝花定型机
JP2889266B2 (ja) パンチプレス機械
EP1234657A1 (de) Spindelpresse
US5435216A (en) Method and apparatus for operating a hydraulic ram
KR200409609Y1 (ko) 프레스의 가변피치 피더 시스템
CN212792604U (zh) 一种全自动冲床装置
KR101998868B1 (ko) 분말야금 성형 프레스용 하부램 장치
JP2890169B2 (ja) プレス機械の運転方法
KR100433468B1 (ko) 프레스 펀칭장치
CN109013959B (zh) 一种智能电子接料机及其接料方法
JP2637748B2 (ja) パンチプレス
JP2573216Y2 (ja) トランスファプレスの制御装置
JPH11245207A (ja) 窯業製品のプレス成形機
KR100326363B1 (ko) 자동 분말 성형기
KR100305586B1 (ko) 가변형트랜스퍼어프레스장치_

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990720

AKX Designation fees paid

Free format text: DE ES FR IT

17Q First examination report despatched

Effective date: 20010827

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BONGIOANNI MACCHINE S.R.L.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BONGIOANNI MACCHINE S.P.A.

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE ES FR IT

REF Corresponds to:

Ref document number: 69721949

Country of ref document: DE

Date of ref document: 20030618

Kind code of ref document: P

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2198524

Country of ref document: ES

Kind code of ref document: T3

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: FAVOLE S.R.L.

Effective date: 20040216

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20060412

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): DE ES FR IT

ET3 Fr: translation filed ** decision concerning opposition
REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Date of ref document: 20060623

Kind code of ref document: T5

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091204

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20110616

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20161229

Year of fee payment: 20

Ref country code: IT

Payment date: 20161124

Year of fee payment: 20

Ref country code: ES

Payment date: 20161207

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20161230

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69721949

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20171205