EP0293574A2 - Machine à meuler à bande - Google Patents

Machine à meuler à bande Download PDF

Info

Publication number
EP0293574A2
EP0293574A2 EP88105417A EP88105417A EP0293574A2 EP 0293574 A2 EP0293574 A2 EP 0293574A2 EP 88105417 A EP88105417 A EP 88105417A EP 88105417 A EP88105417 A EP 88105417A EP 0293574 A2 EP0293574 A2 EP 0293574A2
Authority
EP
European Patent Office
Prior art keywords
grinding
belt
transport path
feed direction
workpiece
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
EP88105417A
Other languages
German (de)
English (en)
Other versions
EP0293574B1 (fr
EP0293574A3 (en
Inventor
Georg Weber
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88105417T priority Critical patent/ATE67954T1/de
Publication of EP0293574A2 publication Critical patent/EP0293574A2/fr
Publication of EP0293574A3 publication Critical patent/EP0293574A3/de
Application granted granted Critical
Publication of EP0293574B1 publication Critical patent/EP0293574B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces

Definitions

  • the innovation relates to a belt grinding machine for grinding flat workpieces on their underside in a continuous process, comprising a transport path with a plurality of lower and upper rollers which form a transport gap between the workpiece and at least some of which can be driven, and two below the transport path Grinding units arranged one behind the other in the feed direction, each with a grinding belt that can be pressed onto the underside of a workpiece running through the transport path.
  • Certain processing operations on flat plate-shaped objects mean that these objects have to be ground on their underside after the processing operation and before their further use. For example, during stamping and plasma cutting of sheet metal, burrs are created along the cutting lines, which have to be ground down before further processing of the sheet metal. When they leave the processing machine the flat workpieces are to pass through a grinding machine immediately thereafter, this presupposes that the workpieces can be held, transported and supported during the grinding process. For this purpose, a minimum length of the workpiece - measured in the direction of transport - is required in order to grasp the workpiece in front of or behind the grinding point and thus be able to transport it.
  • the innovation is based on the object of specifying a grinding machine of the type mentioned at the beginning, with which workpieces can also be ground on their underside which have a very short length in the transport direction.
  • this object is achieved in that the grinding units are arranged offset from one another transversely to the feed direction in such a way that their grinding tracks - measured from the two side edges of the transport track - each extend over approximately half the width thereof, and - viewed in the feed direction - in addition to the respective grinding unit, at least one lower roller cooperating with an upper roller is arranged.
  • first half of the workpiece is ground, the workpiece being held and transported during this grinding process by the upper roller lying next to the grinding unit and interacting with it.
  • This makes it possible to grind workpieces whose dimensions in the direction of transport can be less than the length of the grinding zone measured in the same direction.
  • the dimension of the workpiece only has to be so large that the workpiece is practically always gripped by two pairs of rollers which follow one another in the transport direction and thereby maintains its flat position. The same process is then repeated for the other half of the workpiece.
  • the upper roller which interacts with the lower roller lying next to the grinding unit, extends over the entire width of the transport path.
  • the upper rollers of the transport path are mounted so as to be adjustable in height.
  • the rollers can be mounted together on a height-adjustable frame.
  • a pair of upper and lower rollers extending across the entire width of the transport path are provided in front of, behind and between the grinding units is.
  • the belt grinding machine shown schematically in FIGS. 1 and 2 comprises a frame or housing, generally designated 10, which has a workpiece inlet opening 12 and a workpiece outlet opening 14, which are connected to one another by a conveyor path for the workpiece, generally designated 16.
  • Each of the sanding units comprises an endless sanding belt 22 which runs over an upper deflection roller 24, a lower deflection roller 26 and a contact roller 28, the horizontal axes of which are each directed perpendicular to the feed direction A.
  • the contact roller 28 is driven by an electric motor 30, the drive wheel 32 of which drives an intermediate wheel 36 via a first belt drive 34, which in turn drives the contact roller 28 via a second belt drive 38.
  • the upper deflection roller 24 and the contact roller 28 are arranged such that the abrasive belt section 40 running between them lies in a horizontal plane.
  • the width of the grinding belt 18 and the axial length of the rollers 24, 26 and the contact roller 28 can be chosen so that the grinding paths of the two grinding units, starting from the lateral edges of the transport path 16, overlap slightly in the middle.
  • the transport path 16 comprises - viewed in the direction of travel A - in front of, between and behind the grinding units 18 and 20 in each case a roller 42 which extends over the entire width of the transport path 16 and whose axes are parallel to the axes of the deflecting rollers 24, 26 and the contact rollers 28 are. Axially next to the two grinding units 18 and 20 there is also a lower roller 44, which extends only approximately over half the width of the transport path 16. The bearings of the lower rollers 42 and 44 are not shown in the figures for the sake of clarity.
  • Each of the lower rollers 42, 44 is assigned an upper roller 46 which extends over the entire width of the transport path 16 and which, with the respective lower roller 42 or 44, has a nip for conveying a flat workpiece forms.
  • the upper rollers 46 are mounted together on a frame 48 which in turn is mounted on the frame 10 in an adjustable manner. The height adjustment takes place with the aid of threaded spindles 50 which engage in corresponding threaded bores on the frame 48 and which are each connected via a gear 52 to a shaft 54 which in turn is driven by an electric motor 56 when the height of the frame 48 is adjusted should.
  • the upper rollers 46 are driven by an electric motor 58, which drives a first upper roller 46 via a belt or chain drive 60, from which the further upper rollers 46 are then driven via further belt or chain drives 60.
  • a drive of the lower rollers 42 is not absolutely necessary, but can also be provided.
  • a workpiece entering the belt grinding machine through the inlet opening 12 is first only ground on one half by the grinding unit 18, the grinding belt being able to be pressed against the underside of the workpiece by a pressure bar 62 which, for example, can be designed in this way can, as described in EP-A2-0 210 654.
  • the workpiece is held and transported by the roller 44 lying next to the grinding unit 18 and the upper roller 46 assigned to it.
  • the second half of the workpiece is then ground by the grinding unit 20, the workpiece on the other side now being held and transported by the lower roller 44 lying next to the grinding unit 20 and the upper roller 46 assigned to it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP88105417A 1987-06-04 1988-04-05 Machine à meuler à bande Expired - Lifetime EP0293574B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105417T ATE67954T1 (de) 1987-06-04 1988-04-05 Bandschleifmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8707974U DE8707974U1 (de) 1987-06-04 1987-06-04 Bandschleifmaschine
DE8707974U 1987-06-04

Publications (3)

Publication Number Publication Date
EP0293574A2 true EP0293574A2 (fr) 1988-12-07
EP0293574A3 EP0293574A3 (en) 1989-02-22
EP0293574B1 EP0293574B1 (fr) 1991-10-02

Family

ID=6808830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105417A Expired - Lifetime EP0293574B1 (fr) 1987-06-04 1988-04-05 Machine à meuler à bande

Country Status (3)

Country Link
EP (1) EP0293574B1 (fr)
AT (1) ATE67954T1 (fr)
DE (2) DE8707974U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000035628A1 (fr) * 1998-12-11 2000-06-22 Steinemann Ag Procede pour commander le processus de meulage et commande automatisee pour meuleuse large

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8903949U1 (de) * 1989-03-31 1990-08-02 Weber, Georg, 8640 Kronach Bandschleifmaschine
DE29609533U1 (de) * 1996-05-30 1996-12-12 Faller jun., Alexander, Dipl.-Wirtsch.-Ing. (FH), 84061 Ergoldsbach Planziegel-Bandschleifmaschine
DE19621690A1 (de) * 1996-05-30 1997-12-04 Jun Alexander Faller Planziegel-Bandschleifmaschine
CN107052956B (zh) * 2017-01-23 2023-02-28 张必葵 一种弧形锁面双面抛光机
CN112296821A (zh) * 2020-10-23 2021-02-02 李丹丹 一种砂带式塑胶制品表面加工用拉丝处理装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338644A (en) * 1940-12-30 1944-01-04 Leota T Pallas Plate polishing machine
DE1577495A1 (de) * 1966-06-07 1970-01-08 Tidland Machine Company Bandschleifmaschine und Verfahren zum Betrieb derselben
US3991522A (en) * 1975-05-05 1976-11-16 Aladdin Manufacturing Company Apparatus for sharpening rotary blades

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316154C2 (de) * 1983-05-03 1986-06-19 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Bandschleifmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338644A (en) * 1940-12-30 1944-01-04 Leota T Pallas Plate polishing machine
DE1577495A1 (de) * 1966-06-07 1970-01-08 Tidland Machine Company Bandschleifmaschine und Verfahren zum Betrieb derselben
US3991522A (en) * 1975-05-05 1976-11-16 Aladdin Manufacturing Company Apparatus for sharpening rotary blades

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000035628A1 (fr) * 1998-12-11 2000-06-22 Steinemann Ag Procede pour commander le processus de meulage et commande automatisee pour meuleuse large

Also Published As

Publication number Publication date
ATE67954T1 (de) 1991-10-15
EP0293574B1 (fr) 1991-10-02
DE8707974U1 (de) 1987-08-13
EP0293574A3 (en) 1989-02-22
DE3865241D1 (de) 1991-11-07

Similar Documents

Publication Publication Date Title
EP1924403B1 (fr) Dispositif d'usinage par ebavurage ou meulage d'une piece metallique en forme de bande ou de plaque
DE3231895C2 (de) Maschine zum Abfasen von Glasplattenkanten
DE3702154C2 (fr)
DE2520170A1 (de) Vorrichtung zum antrieb von umlaufenden werkzeugen fuer radiale einzeleinstellung und der ihnen zugeordneten gegenbauteile
DE202008016909U1 (de) Tischfräsmaschine
DE3029591C2 (fr)
DE2335966C2 (de) Verfahren und Vorrichtung zum Herstellen von Schlitzen in Bandmaterial
EP0293574B1 (fr) Machine à meuler à bande
DE3523901A1 (de) Glasplattenschleifmaschine
EP0504442A1 (fr) Dispositif pour l'alimentation des pièces vers une machine de production
EP2396227A1 (fr) Dispositif de coupe et de séparation
DE10320295A1 (de) Vorrichtung und Verfahren zum Bearbeiten von Werkstücken
DE2741559C3 (de) Längsschneideeinrichtung
DE3509004A1 (de) Bandschleifmaschine
EP0816031A1 (fr) Dispositif pour le meulage de deux faces opposées de blocs de pierre
DE2907110A1 (de) Wendevorrichtung fuer bogen an falzmaschinen
DE29611728U1 (de) Vorrichtung zum beidseitigen Beschleifen von Steinen
DE19961351C1 (de) Verfahren und Vorrichtung zum Verbinden der Enden von Metallbändern mittels Widerstandsschweißen
EP0362833A2 (fr) Machine de travail du bois, de préférence une moulurière
EP0058369A2 (fr) Dispositif d'avance pour les machines-outils pour l'usinage du bois
CH665159A5 (de) Schleifmaschine.
DE10047385C2 (de) Verfahren und Vorrichtung zur Bearbeitung von fortlaufend bewegten Werkstücken
DE2017029C3 (de) Bandschleifmaschine
EP0654332B1 (fr) Scie à panneaux
DE202019101457U1 (de) Anlage für das Laser- oder Plasmaschneiden von Teilen aus Flachmaterial

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): AT BE CH DE ES FR GB GR IT LI LU NL SE

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 ES FR GB GR IT LI LU NL SE

RHK1 Main classification (correction)

Ipc: B24B 21/12

17P Request for examination filed

Effective date: 19890726

17Q First examination report despatched

Effective date: 19901203

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

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

Ref country code: SE

Effective date: 19911002

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19911002

Ref country code: GB

Effective date: 19911002

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19911002

Ref country code: BE

Effective date: 19911002

REF Corresponds to:

Ref document number: 67954

Country of ref document: AT

Date of ref document: 19911015

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3865241

Country of ref document: DE

Date of ref document: 19911107

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

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

Ref country code: AT

Effective date: 19920405

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

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

Effective date: 19920430

Ref country code: LI

Effective date: 19920430

Ref country code: CH

Effective date: 19920430

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Payment date: 19930122

Year of fee payment: 6

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

Ref country code: DE

Payment date: 19930419

Year of fee payment: 6

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

Ref country code: NL

Payment date: 19930430

Year of fee payment: 6

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

Ref country code: NL

Effective date: 19941101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19941229

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

Ref country code: DE

Effective date: 19950103

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050405