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EP0135849A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Machine for drilling fragile sheet-like materials, in particular sheet glass and the like

Assignee: TEAX Srl
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Filing: 1984-09-03
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Granted: —
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Expires: 2004-09-03
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Abstract

Abstract @ A machine is disclosed for drilling sheet-like materials, in particular for drilling holes at preset locations on glass, crystal glass, and the like plate blanks, which includes a feed-in station (1) and a drilling station (2). The feed-in station (1) is provided with a means of sliding a plate blank (3) to be drilled, forward, which has a plurality of rollers (5), at least some of which are driving rollers, the rollers being effective to impart a forward movement to the plate blank (3) and provided with a means of combining this forward movement with an approaching movement of the plate blank (3) toward an abutment member connected to the frame of the feed-in station (1).

Inventors

  • 👤 Roberto Padovani

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 22:08
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/067; B23; B23B; B23B39/00; B23B39/003; B23B39/16; B23B39/22; B23B41/00; B23B41/003; B23Q; B23Q7/00; B23Q7/04; B23Q7/041; B23Q7/05; B23Q7/055; B28; B28D; B28D1/00; B28D1/14; B28D7/00; B28D7/04; B23B2220/00; B23B2220/32; B23B2226/00; B23B2226/45; Y; Y10; Y10T; Y10T408/00; Y10T408/36; Y10T408/375; Y10T408/378; Y10T408/3788; Y10T408/44; Y10T408/46; Y10T408/47; Y10T408/55; Y10T408/561; Y10T408/5623; Y10T83/00; Y10T83/647; Y10T83/6539

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 165 words
A machine for drilling fragile sheet-like materials, in particular sheet glass or the like, of a type comprising a feed-in station (1) for a sheet blank (3) arranged to cooperate with a sheet blank drilling station (2), said feed-in station (1) including a frame (4), a means of moving said sheet blank (3) slidingly on said frame (4), and a position reference means (21-22) for said sheet blank (3), said sheet blank drilling station (2) including a frame (30) provided with a holding and locating means for drill units (31a,31b) overlying and underlying a working zone and adapted to interact with said sheet blank (3) at said working zone, characterized in that said slide means comprises a plurality of rollers (5) at least some whereof are driven by a motor unit (6) and provided with a means of combining a forward movement of said sheet blank (3) with an approaching movement of said sheet blank (3) toward an abutment member connected to said frame (4).
Claim 2
Dependent Claim 165 words
A machine for drilling fragile sheet-like materials, in particular sheet glass or the like, of a type comprising a feed-in station (1) for a sheet blank (3) arranged to cooperate with a sheet blank drilling station (2), said feed-in station (1) including a frame (4), a means of moving said sheet blank (3) slidingly on said frame (4), and a position reference means (21-22) for said sheet blank (3), said sheet blank drilling station (2) including a frame (30) provided with a holding and locating means for drill units (31a,31b) overlying and underlying a working zone and adapted to interact with said sheet blank (3) at said working zone, characterized in that said slide means comprises a plurality of rollers (5) at least some whereof are driven by a motor unit (6) and provided with a means of combining a forward movement of said sheet blank (3) with an approaching movement of said sheet blank (3) toward an abutment member connected to said frame (4).
Claim 3
Dependent Claim 73 words
A machine according to Claim 1, characterized in that said rollers (5) define a surface of advancement for said sheet blank (3) and extend with their axes substantially crosswise to the direction of advancement of said sheet blank (3), said means of combining a forward movement of said sheet blank (3) with an approaching movement thereof comprising, on said rollers (5), a shroud (8) having ridges (9) with a helical pattern formed thereon.
Claim 4
Dependent Claim 23 words
A machine according to Claim 2, characterized in that said ridges (9) are formed from a high frictional coefficient material such as rubber.
Claim 5
Dependent Claim 38 words
A machine according to one or more of the preceding claims, characterized in that said position reference means (21-22) comprises a moveable pad element (21) located substantially orthogonally,relatively to the surface of advancement of said sheet blank (3).
Claim 6
Dependent Claim 67 words
A machine according to one or more of the preceding claims, wherein said drill units (31a,31b) comprise drilling heads (32,33,34,35) having pressure members (56) and being hydraulically connected to a cooling fluid supply, and characterized in that it comprises discharge conduits (58) for said fluid associated with each pressure member (56) and cooperating with a trough (59) adapted to direct said fluid away from said working zone.
Claim 7
Dependent Claim 47 words
A machine according to one or more of the preceding claims, characterized in that it comprises a puller chest (61) associated with each of the lower drilling heads (32,33,34,35) in said drill units (31a, 31b) and cooperating with a collecting chest (62) mounted on said frame (4).
Claim 8
Dependent Claim 87 words
A machine according to one or more of the preceding claims, characterized in that said slide means ( 5 ) for said sheet blank ( 3 ) on said frame (4) comprises a carriage (11) mounted slidably along runways laterally associated with said frame and carrying gripper assemblies formed by first and second jaws each separately connected to a respective fluid dynamic actuator, said carriage being driven through a first bearing screw transmission of the so called ball recirculating type, controlled via a first angular position transducer.
Claim 9
Dependent Claim 35 words
A machine according to one or more of the preceding claims, characterized in that annular grooves are provided on said rollers to permit said second jaw to pass through when gripping on said sheet blank.
Claim 10
Dependent Claim 35 words
A machine according to one or more of the preceding claims, characterized in that said holding and locating means for said drill units comprises grooved bars associated with said frame and driven by step motors.
Claim 11
Dependent Claim 26 words
A machine for drilling fragile sheet-like materials, in particular sheet glass or the like, according to the preceding claims and substantially as herein described and illustrated.

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