EP0027675B1 - Automatisierte Presse zum Formen von Schleifscheiben - Google Patents

Automatisierte Presse zum Formen von Schleifscheiben Download PDF

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Publication number
EP0027675B1
EP0027675B1 EP80200983A EP80200983A EP0027675B1 EP 0027675 B1 EP0027675 B1 EP 0027675B1 EP 80200983 A EP80200983 A EP 80200983A EP 80200983 A EP80200983 A EP 80200983A EP 0027675 B1 EP0027675 B1 EP 0027675B1
Authority
EP
European Patent Office
Prior art keywords
press
mould
conveyor
pincer
platen
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
Application number
EP80200983A
Other languages
English (en)
French (fr)
Other versions
EP0027675A1 (de
Inventor
Giorgio Galli
Luigi Galli
Roberto Lucchina
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.)
DAVIDE MATERNINI S.R.L.
Original Assignee
DAVIDE MATERNINI Srl
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 DAVIDE MATERNINI Srl filed Critical DAVIDE MATERNINI Srl
Priority to AT80200983T priority Critical patent/ATE4179T1/de
Publication of EP0027675A1 publication Critical patent/EP0027675A1/de
Application granted granted Critical
Publication of EP0027675B1 publication Critical patent/EP0027675B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/009—Tools not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses

Definitions

  • an automatic press for moulding grinding wheels incorporating two or more reinforcing gauzes, a wheel hub for the wheel bore and a marking label said moulding press comprising:
  • the press in question in its general layout, is of a conventional kind well known to those skilled in the art and which comprises a bottom platen 10 and a top platen 11.
  • the platens 10 and 11 carry, respectively, the male and the female moulds used for shaping the grinding wheels.
  • the top platen 11 is vertically movable in the direction of the arrow 12, whereas the bottom platen 10 is horizontally movable in the direction of the arrow 13.
  • the platen 10 is shifted from a working position of shaping of the grinding wheel, in alignment with the platen 11, to a position of mould loading and unloading, wherein the platen 10 is offset relative to the platen 11 in a position outside the press, as shown in FIGURE 1.
  • FIGURE 1 of the drawings are generally indicated at 20 and 21, respectively.
  • the set 20 is intended automatically to feed the moulds 14 with the gauzes 22 to reinforce the abrasive mix, a wheel hub 23 for the central wheel bore of the wheel D and a marking label 25 (FIGURE 10).
  • the set 21, conversely, is intended automatically to remove, from the moulds 14, the finished grinding wheel D (FIGURE 8).
  • Each pincer 35 comprises two arms 39, 40 pivotally connected at 41.
  • the arm 39 is fastened to the frame 36, whereas the arm 40 can be rotated about 41 against the bias of a spring 42.
  • the concurrent rotation of the arms 40 of the couple of pincers 35 is controlled by the stems 43 of two confrontingly assembled pistons 44 displaceable in the interior of a ram 45 against the bias of springs 46.
  • Each pincer 35 in addition, is surrounded by a sleeve 47, the latter being axially slidable and terminated by a flange 48, the purpose of which will be explained hereinafter.
  • the set 21 is structurally comprised of a suction apron 49, which is connected to a suction pump 50 through a stiff tube 51 and a hose 52.
  • the suction apron 49 is as wide as the platen 10 and has a comparatively narrow suction slot.
  • the stiff tube 51 is borne by a framing 53 and is movable in the direction of the arrow 54 by the agency of an actuating ram 55. More detailedly, the tube 51 is borne by an upright 56 slidable on ways 57 which overhangingly extend from the framing 53.
  • the tube 51 in its shank close to the apron 49 carries, moreover, a couple of pincers 135 which, both as to their structure and their operability, are substantially a counterpart of the pincers 35 of the set 20 described hereinabove.
  • the only difference is that the pincers 135 do not have the sleeve 47 or the relevant flange 48, either.
  • the component parts of the pincers 135, depicted in FIGURES 6, 7, 8 and 9, will not be described in detail and carry the same numerical references as the pincers 35 but increased by 100.
  • the operator deposits on a couple of dishes 29 the hub 23, the label 25, and the gauze 22 (FIGURE 2) and, on the next oncoming dish coupled 29 a gauze 22 only, and so forth in the same alternate sequence.
  • the conveyor 26 is moved stepwise so as to bring each couple of dishes 29 with their charge into alignment with the couple of pincers 35 of the carriage 32 (FIGURE 2).
  • the pincers 35 are lowered form the position of FIGURE 2 to that of FIGURE 3 so as to become inserted into the assembly 23, 25 and 22, by axial depression of the plug 30 and relative motion between the pincers 35 and the respective flanges 48.
  • the pincers 35 are then closed from the position of FIGURE 2 to the position of FIGURE 3 and lifted to the position of FIGURE 4.
  • the carriage 32 is then moved from the position shown in FIGURE 1 in dotted lines (also shown in the detail of FIGURE 4).
  • the moulds 14 are filled with the abrasive mix 15 by shifting the hopper 16 in the direction of the arrow 17.
  • a second gauze 32 is placed, which has been withdrawn from the dishes 29 by the pincers 35 in the same way as described above with reference to the assembly 23, 25, 22.
  • the platen 10 is then moved under the platen 11, the mix is compressed and the platen 10 is brought back to the position of FIGURE 1, outside the press, for withdrawing the finished grinding wheels.
  • the set 21 has been shifted to the position shown in dash and dot lines in FIGURE 9 and the pincers 135, which are open, are lowered from the position of FIGURE 6 to the position of FIGURE 7 wherein they are closed on the central bore of the moulded wheel after that the bottom wall 60 has been lifted (by extractor of conventional make, not shown) to prevent any interference by the plug 59.
  • the pincers 135 are then lifted to the position of FIGURE 8 and carry with themselves the finished grinding wheel D.
  • the set 21 is eventually brought back to the position of FIGURE 9 on the conveyor 58 onto which the wheels are deposited as the pincers 135 are opened.
  • the suction apron 49 provides to sweep out of the platen 11 the residues of abrasive flour, thus preventing it from becoming airborne and from causing any damage to the attendants.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Pens And Brushes (AREA)

Claims (6)

1. Automatisierte Presse zum Formen von Schleifscheiben, in denen zwei oder mehrere Verstärkungsnetze, eine Nabe für die Mittelbohrung der Scheibe sowie eine Etikette einverleibt sind, welche Presse eine untere und eine obere Platte umfasst, die mindestens eine Form bzw. einen Stempel zur Formung der Scheibe tragen, wobei die untere Platte waagrecht aus der Presse in eine Lage zum Einbringen der Schleifmittelbindung zusammen mit den Netzen, der Nabe und der Etikette in die Form herausverschiebbar ist und die Presse ferner in Kombination eine erste Einheit (20) zum selbsttätigen Einbringen in die Form (14) der Netze (22), der Nabe (23) und der Etikette (25), sowie eine zweite Einheit (21) zur selbsttätigen Entnahme aus der Form (14) der geformten Schleifscheibe (D) umfasst, und wobei die genannte erste Einheit (20) einen schrittweise beweglichen Förderer (26) mit mindestens einer Reihe von Tellern (29), die je einen mittleren Stift (30) aufweisen, der entgegen der Wirkung einer Feder (31) einziehbar ist, sowie einen zwischen dem genannten Förderer (26) un der genannten Form (14) hin-und herverschiebbaren beweglichen Wagen (32) umfasst, der mindestens eine, stets in Ausrichtung mit dem Stift (30) eines Tellers (29) lotrecht bewegliche Expansionszange (35) trägt, während die genannte zweite Einheit (21) mindestens eine, sowohl lotrecht, als auch waagrecht zwischen der Form (14) und einer Lage ausserhalb der Presse bewegliche Expansionszange (135) umfasst.
2. Presse nach Anspruch 1, wobei der genannte Förderer (26) ein Plattenbandförderer ist und jede Platte (28) eine der genannten Teller (29) trägt.
3. Presse nach Anspruch 1, wobei der genannte Wagen (32) oberhalb der Förderers (26) angeordnet ist.
4. Presse nach Anspruch 1, wobei die genannte Zange (35) zwei miteinander in (41) gelenkig verbundene Arme (39, 40) umfasst, von denen der Arm (39) feststeht, während der Arm (40) entgegen der Wirkung einer Feder (42) um (41) drehbar ist und die Drehung des Armes (40) durch einen Betätigungszylinder (45) gesteuert ist.
5. Presse nach Anspruch 1, wobei die Zange (135) an einem Rohr (51) befestigt ist, das eine Saugmündung (49) besitzt, die geeignet ist, die Platte (10) abzufegen, wobei das Rohr an einem Rahmen (53) angebracht ist, so dass es hin- und herbewegbar ist.
6. Presse nach Anspruch 4, wobei die Zange (35) von einer ihr gegenüber axial beweglichen, mit einem Flansch (48) endenden Buchse (47) umgeben ist.
EP80200983A 1979-10-22 1980-10-17 Automatisierte Presse zum Formen von Schleifscheiben Expired EP0027675B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80200983T ATE4179T1 (de) 1979-10-22 1980-10-17 Automatisierte presse zum formen von schleifscheiben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT26688/79A IT1125546B (it) 1979-10-22 1979-10-22 Pressa automatica per lo stampaggio di dischi abrasivi
IT2668879 1979-10-22

Publications (2)

Publication Number Publication Date
EP0027675A1 EP0027675A1 (de) 1981-04-29
EP0027675B1 true EP0027675B1 (de) 1983-07-20

Family

ID=11220041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200983A Expired EP0027675B1 (de) 1979-10-22 1980-10-17 Automatisierte Presse zum Formen von Schleifscheiben

Country Status (6)

Country Link
EP (1) EP0027675B1 (de)
AT (1) ATE4179T1 (de)
CA (1) CA1164168A (de)
DE (1) DE3064307D1 (de)
ES (1) ES496132A0 (de)
IT (1) IT1125546B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1287603B1 (it) * 1996-12-19 1998-08-06 S I T Societa Italiana Tecnosp Procedimento per la realizzazione di spazzole e spazzola cosi' realizzata
US6878051B2 (en) 2003-02-05 2005-04-12 Saint-Gobain Abrasives Technology Company Saw blade with shaped gullets
CN113021202B (zh) * 2019-12-24 2025-05-09 郑州大华机电技术有限公司 一种半自动摊料机
CN111348283B (zh) * 2020-04-20 2025-02-11 珠海泰达砂轮有限公司 一种用于全自动贴标机的90°机械手机构
CN112872607B (zh) * 2021-02-22 2023-06-09 济南锐骏自动化设备有限公司 一种全自动铝轮毂打标装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1252515A (fr) * 1960-03-31 1961-01-27 Philips Nv Dispositif destiné à prendre et à soulever des objets minces et des feuilles, en particulier des étiquettes pour disques phonographiques
FR1556866A (de) * 1967-03-24 1969-02-07
JPS5231596B1 (de) * 1970-05-29 1977-08-16
US3722710A (en) * 1970-10-23 1973-03-27 Carborundum Co Work carrier for abrasive cleaning arrangements

Also Published As

Publication number Publication date
CA1164168A (en) 1984-03-27
ATE4179T1 (de) 1983-08-15
ES8200266A1 (es) 1981-11-16
DE3064307D1 (en) 1983-08-25
EP0027675A1 (de) 1981-04-29
IT7926688A0 (it) 1979-10-22
ES496132A0 (es) 1981-11-16
IT1125546B (it) 1986-05-14

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