ITMI20092021A1 - MOTOR PULLEY FOR CUTTING MACHINE TOOLS FOR MILLING MACHINES - Google Patents
MOTOR PULLEY FOR CUTTING MACHINE TOOLS FOR MILLING MACHINES Download PDFInfo
- Publication number
- ITMI20092021A1 ITMI20092021A1 IT002021A ITMI20092021A ITMI20092021A1 IT MI20092021 A1 ITMI20092021 A1 IT MI20092021A1 IT 002021 A IT002021 A IT 002021A IT MI20092021 A ITMI20092021 A IT MI20092021A IT MI20092021 A1 ITMI20092021 A1 IT MI20092021A1
- Authority
- IT
- Italy
- Prior art keywords
- pulley
- pulley according
- coupling
- strip
- projections
- Prior art date
Links
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 239000004575 stone Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 description 6
- 239000010432 diamond Substances 0.000 description 6
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000011049 pearl Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
- B23D57/003—Sawing machines or sawing devices working with saw wires, characterised only by constructional features of particular parts
- B23D57/0053—Sawing machines or sawing devices working with saw wires, characterised only by constructional features of particular parts of drives for saw wires; of wheel mountings; of wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
- B23D57/0007—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 using saw wires
- B23D57/0023—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 using saw wires with a plurality of saw wires or saw wires having plural cutting zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/08—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws
Description
DESCRIZIONE del Brevetto per Invenzione Industriale DESCRIPTION of the Patent for Industrial Invention
Forma oggetto del presente trovato una puleggia motrice per il supporto di utensili di taglio di macchine utensili per la lavorazione di lapidei. E' noto, nel settore tecnico delle macchine per la lavorazione dei lapidei, l'utilizzo di macchine utensili cosiddette multifilo per il taglio dei blocchi in lastre; dette macchine sono genericamente costituite da una struttura portante a colonne, sulla quale sono montati due più pulegge/tamburi , una delle quali motrice e le altre folli, sulle quali sono montati ad anello chiuso gli utensili di taglio costituiti del tipo filo flessibile diamantato, ossia fili costituiti da una anima in acciaio sulla quale sono applicate perle (cilindretti metallici) di diamante sinterizzato. E<1>anche noto che detti fili diamantati vengono normalmente preparati ad anello chiuso e direttamente installati sulla macchina avvolti su una puleggia/tamburo motrice, dotata di pluralità di gole realizzate sulla sua superficie anulare, e su una o più pulegge folli di rinvio. The present invention relates to a driving pulley for supporting cutting tools of machine tools for working stone. In the technical sector of stone processing machines, the use of so-called multi-wire machine tools for cutting blocks into slabs is known; these machines are generally constituted by a bearing structure with columns, on which two more pulleys / drums are mounted, one of which is driving and the other idle, on which the cutting tools consisting of the flexible diamond wire are mounted in a closed loop, i.e. wires consisting of a steel core on which sintered diamond pearls (metal cylinders) are applied. It is also known that said diamond wires are normally prepared in a closed loop and directly installed on the machine wound on a driving pulley / drum, equipped with a plurality of grooves formed on its annular surface, and on one or more idle return pulleys.
Al fine di evitare lo slittamento dei fili durante la rotazione, la puleggia motrice viene a sua volta ricoperta con prodotti elastomerici incollati alla superficie metallica della puleggia stessa e poi torniti per ottenere le sedi richieste per l'alloggiamento dei fili diamantati. In order to prevent the wires from slipping during rotation, the driving pulley is in turn covered with elastomeric products glued to the metal surface of the pulley itself and then turned to obtain the seats required for housing the diamond wires.
Sebbene funzionali tali pulegge note presentano tuttavia l'inconveniente che, al consumarsi dell'elastomero a causa della abrasione prodotta dai fili diamantati, si rende necessario cambiare la puleggia motrice la quale deve essere smontata dalla macchina e sostituita con una nuova puleggia già predisposta, determinando notevoli difficoltà di maneggio a causa delle dimensioni delle pulegge e conseguenti prolungati tempi morti della macchina utensile . Although functional, these known pulleys nevertheless have the drawback that, when the elastomer wears out due to the abrasion produced by the diamond wires, it is necessary to change the driving pulley which must be disassembled from the machine and replaced with a new pulley already prepared, causing considerable difficulties in handling due to the size of the pulleys and consequent prolonged downtime of the machine tool.
Si pone pertanto il problema tecnico di realizzare una puleggia motrice per fili di taglio di macchine utensili per la lavorazione di lapidei la quale si atta a consentire un rapido ripristino delle condizioni di lavoro al momento della manutenzione necessaria per l'usura del rivestimento di attrito della puleggia stessa. Therefore, the technical problem arises of making a driving pulley for cutting wires of machine tools for stone processing which is able to allow a rapid restoration of the working conditions at the time of the maintenance necessary for the wear of the friction coating of the pulley itself.
Nell'ambito di tale problema si richiede inoltre che la puleggia risulti di facile ed economica produzione ed assemblaggio e facilmente installabile anche su macchine già esistenti senza necessità di speciali adattamenti. Within the scope of this problem, it is also required that the pulley be easy and economical to produce and assemble and be easily installed even on already existing machines without the need for special adaptations.
Tali risultati sono ottenuti secondo il presente trovato da una puleggia motrice per il supporto di utensili di taglio di macchine utensili per la lavorazione di lapidei, comprendente un corpo sulla superficie circonferenziale del quale sono realizzati mezzi di accoppiamento radiale, estesi anularmente e tra loro paralleli, e strisce di materiale ad elevato coefficiente di attrito dotate, sulla propria superficie interna, di mezzi di accoppiamento con detti mezzi della puleggia, dette strisce presentando sulla propria superficie esterna sedi per l'alloggiamento dei fili di taglio . These results are obtained according to the present invention by a driving pulley for supporting cutting tools of machine tools for stone processing, comprising a body on the circumferential surface of which radial coupling means are provided, extending annularly and parallel to each other, and strips of material with a high coefficient of friction provided, on their inner surface, with means for coupling with said pulley means, said strips having seats on their outer surface for housing the cutting wires.
Maggiori dettagli potranno essere rilevati dalla seguente descrizione di un esempio non limitativo di attuazione dell'oggetto del presente trovato effettuata con riferimento ai disegni allegati, in cui si mostra: More details can be found from the following description of a non-limiting example of embodiment of the object of the present invention made with reference to the attached drawings, which show:
in figura 1 : una vista schematica di una macchina per il taglio di lapidei con puleggia motrice secondo il presente trovato ; in figure 1: a schematic view of a machine for cutting stone with driving pulley according to the present invention;
in figura 2 una vista frontale/laterale (=intera tonda) della puleggia motrice secondo il presente trovato; in figure 2 a front / side view (= whole round) of the driving pulley according to the present invention;
in figura 3 una sezione secondo il piano di traccia III-III di fig. 2 e in figure 3 a section along the line III-III of fig. 2 and
in figura 4 una sezione secondo il piano di traccia IV-IV di fig. 2. in figure 4 a section along the line IV-IV of fig. 2.
Come illustrato in fig.l e assunte per sola comodità di descrizione e senza significato limitativo una coppia di assi di riferimento con direzioni rispettivamente diametrale X-X e trasversale Y-Y, la puleggia 20 secondo il trovato che è montata a bordo di una macchina utensile 10 per il supporto di fili diamantati 11 chiusi ad anello su pulegge folli 12, comprende sostanzialmente : As illustrated in Fig. 1 and assuming for convenience of description and without limiting significance a pair of reference axes with diametrical X-X and transverse Y-Y directions respectively, the pulley 20 according to the invention is mounted on board a machine tool 10 for supporting of diamond wires 11 closed in a ring on idle pulleys 12, substantially comprises:
+) un corpo 21 sulla superficie circonferenziale del quale sono realizzate delle gole anulari 22, tra loro parallele, di opportuna sezione, ad esempio, ma non necessariamente trapezoidale, e preferibilmente, ma non necessariamente continue, distanziate nella direzione trasversale Y-Y di un passo prefissato; +) a body 21 on the circumferential surface of which annular grooves 22 are made, parallel to each other, of suitable section, for example, but not necessarily trapezoidal, and preferably, but not necessarily continuous, spaced in the transverse direction Y-Y by a predetermined pitch ;
+) strisce 30 di materiale elastomerico ad elevato coefficiente di attrito che presentano sezione trasversale corrispondente a quella delle gole 22 della puleggia in modo da formare: +) strips 30 of elastomeric material with a high coefficient of friction which have a cross section corresponding to that of the grooves 22 of the pulley so as to form:
+ sedi incassate 31 sulla superficie esterna per l'alloggiamento dei fili 11 e + recessed seats 31 on the external surface for housing the wires 11 and
+ risalti 32 sulla superficie interna; detti risalti 32 presentando sezione corrispondente a quella delle gole 22 per poter essere accoppiate alle stesse. + 32 projections on the internal surface; said projections 32 having a section corresponding to that of the grooves 22 in order to be coupled thereto.
Preferibilmente, i dimensionamenti relativi sono tali da determinare un accoppiamento tra i risalti 32 e le rispettive gole 22 con un leggero forzamento . Preferably, the relative dimensions are such as to determine a coupling between the projections 32 and the respective grooves 22 with a slight forcing.
Alle opposte estremità longitudinali, ciascuna striscia 30 presenta mezzi 33 di vincolo per la giunzione in senso longitudinale (=anulare) con l'altra estremità della stessa striscia e mezzi 34 di fissaggio al corpo della puleggia nella direzione trasversale (=radiale). At the opposite longitudinal ends, each strip 30 has constraint means 33 for joining in the longitudinal (= annular) direction with the other end of the same strip and means 34 for fixing to the pulley body in the transverse (= radial) direction.
Preferibilmente i mezzi 34 di vincolo tra strisce sono del tipo ad incastro, ad esempio a coda di rondine o a profilo regolare come illustrato, e i mezzi di fissaggio 35 sono costituiti da piastrine 35a riportate e dotate di asole 35b atte al passaggio .di viti 35c di bloccaggio, opportunamente posizionate al fine di determinare una distribuzione che consenta di mantenere la equilibratura dinamica della puleggia Preferably, the means 34 for fastening the strips are of the interlocking type, for example dovetail or with a regular profile as illustrated, and the fixing means 35 are constituted by plates 35a inserted and provided with slots 35b suitable for the passage of screws 35c. locking, suitably positioned in order to determine a distribution that allows to maintain the dynamic balancing of the pulley
Risulta pertanto come la puleggia secondo il trovato consenta di dare soluzione ai problemi della tecnica nota, essendo infatti le strisce tutte indipendenti tra loro è possibile effettuare una rapida sostituzione delle sole strisce di materiale elastomerico consumate dall'usura, senza necessità di smontare l'intera puleggia, con conseguente riduzione dei costi di manutenzione e dei tempi morti di macchina. It is therefore clear that the pulley according to the invention allows a solution to the problems of the known art, since the strips are all independent from each other, it is possible to quickly replace only the strips of elastomeric material worn out by wear, without the need to disassemble the entire pulley, with a consequent reduction in maintenance costs and machine downtime.
Sebbene descritta in relazione ad esempi di attuazione preferiti, si prevede anche che la puleggia presenti superficie anulare con risalti anziché gole e che corrispondentemente le strisce di materiale polimerico presentino rilievi anziché gole nella propria superficie inferiore di accoppiamento con la puleggia. Although described in relation to preferred embodiments, it is also envisaged that the pulley has an annular surface with projections instead of grooves and that correspondingly the strips of polymeric material have projections instead of grooves in their lower surface for coupling with the pulley.
Oltre a ciò la scelta del materiale delle strisce anulari potrà essere variata rispetto a quelli polimerici purché sia garantita una funzionalità secondo gli scopi del presente trovato. In addition to this, the choice of the material of the annular strips can be varied with respect to the polymeric ones provided that a functionality according to the purposes of the present invention is guaranteed.
Benché descritta nel contesto di alcune forme di realizzazione e di alcuni esempi preferiti di attuazione dell'invenzione si intende che l'ambito di protezione del presente brevetto sia determinato solo dalle rivendicazioni che seguono. Although described in the context of some embodiments and some preferred examples of embodiment of the invention, it is intended that the scope of protection of the present patent is determined only by the following claims.
Claims (13)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT002021A ITMI20092021A1 (en) | 2009-11-17 | 2009-11-17 | MOTOR PULLEY FOR CUTTING MACHINE TOOLS FOR MILLING MACHINES |
| PCT/EP2010/067447 WO2011061138A1 (en) | 2009-11-17 | 2010-11-15 | Drive pulley for cutting tools of machines for processing stones materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT002021A ITMI20092021A1 (en) | 2009-11-17 | 2009-11-17 | MOTOR PULLEY FOR CUTTING MACHINE TOOLS FOR MILLING MACHINES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITMI20092021A1 true ITMI20092021A1 (en) | 2011-05-18 |
Family
ID=42236581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT002021A ITMI20092021A1 (en) | 2009-11-17 | 2009-11-17 | MOTOR PULLEY FOR CUTTING MACHINE TOOLS FOR MILLING MACHINES |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | ITMI20092021A1 (en) |
| WO (1) | WO2011061138A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1404054B1 (en) * | 2011-02-09 | 2013-11-08 | Co Fi Plast Srl | MULTIPLE THROTTLE PULLEY FOR FLEXIBLE ORGANS, IN PARTICULAR ROPE ORGANS FOR CUTTING OF STONE OR SIMILAR MATERIAL, AND ITS PROCESS OF MANUFACTURING. |
| JP6371681B2 (en) * | 2014-11-10 | 2018-08-08 | トーヨーエイテック株式会社 | Method for regenerating resin layer of guide roller for wire saw |
| JP6462321B2 (en) * | 2014-11-10 | 2019-01-30 | トーヨーエイテック株式会社 | Wire saw guide roller, wire saw equipped with the same, method for manufacturing the guide roller, and outer layer recycling method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2958323A (en) * | 1958-01-29 | 1960-11-01 | Ty Sa Man Machine Company | Stone cutting apparatus |
| ES2172393A1 (en) * | 1999-04-30 | 2002-09-16 | Bideseimpianti S T L | Wire holder drum for block cutting equipment with diamond cut wire |
| WO2009001242A1 (en) * | 2007-06-27 | 2008-12-31 | Simec S.P.A. | Pulley for multi-wire machine tools |
| WO2009040870A1 (en) * | 2007-09-28 | 2009-04-02 | Luigi Pedrini | Device for the support, drive and/or transmission of motion to a diamond wire on machines for cutting stones |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US901175A (en) * | 1908-02-06 | 1908-10-13 | Areli Jones | Stone-sawing machine. |
-
2009
- 2009-11-17 IT IT002021A patent/ITMI20092021A1/en unknown
-
2010
- 2010-11-15 WO PCT/EP2010/067447 patent/WO2011061138A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2958323A (en) * | 1958-01-29 | 1960-11-01 | Ty Sa Man Machine Company | Stone cutting apparatus |
| ES2172393A1 (en) * | 1999-04-30 | 2002-09-16 | Bideseimpianti S T L | Wire holder drum for block cutting equipment with diamond cut wire |
| WO2009001242A1 (en) * | 2007-06-27 | 2008-12-31 | Simec S.P.A. | Pulley for multi-wire machine tools |
| WO2009040870A1 (en) * | 2007-09-28 | 2009-04-02 | Luigi Pedrini | Device for the support, drive and/or transmission of motion to a diamond wire on machines for cutting stones |
Non-Patent Citations (1)
| Title |
|---|
| PETER J. BLAU: "Friction Science and Technology - Concepts to Applications, Second Edition", 1 January 2009, CRC PRESS 2009, ISBN: 978-1-4200-5404-0, article "Chapitre 4 : Fundamentals of sliding friction", pages: 143 - 146, XP002587464 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011061138A1 (en) | 2011-05-26 |
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