Abstract:
An automatic self-centering chuck system for use on an engraver. The chuck system includes a plurality of jaws which are slidably mounted for movement in a radial direction toward a central aperture of the chuck to clamp a shaft for an engraving cylinder. Each of the jaws (102) is actuated for movement by a lever (132) pivotally mounted within the chuck. The levers (132) are actuated for pivotal movement by an axially reciprocating drawbar (64) which is energized for movement by a series of pneumatic cylinders. The components of the chuck are accurately machined to provide close tolerance, precise movements of the jaws (102) whereby a cylinder (24) will be accurately positioned at the central rotational axis of the chuck. In order to ensure that the precise level of jaw movement is maintained throughout the life of the chuck, a lubricant flushing or purging system is provided for flushing normal wear particles from the precision components internal to the chuck.
Abstract:
Engraving apparatus adapted to engrave an upstanding surface of a wall in an elevated position in situ has a main frame (11) with a channel section (27) for receiving stencils (18) with symbols to be replicated by an engraving tool (29). The tool (29) and a complementary stencil-engaging guide (15) are mounted on a carriage (12). The carriage (12) is displaceable along sets of tubular guides (21, 19) to enable an operator to follow the symbols defined by the stencils (18). The main frame (11) is supported by an adjustable base frame (50, 40) which holds the main frame in an elevated position or by a jib (60) of a mobile vehicle which can raise or lower the frame (11) to or from the elevated disposition.
Abstract:
A computer-controlled engraving machine for objects in the form of rings, bracelets, medallions, etc., incorporates various types of securing elements to enable engraving by means of rotary movements in the elements supporting the object and longitudinal displacement movements and tilting movements in an engraving tool (26). A computer (44) is fed information on the required engraving and signals (i1, i2, i3) are generated in order to control the said rotary, longitudinal displacement and tilting movements. The longitudinal displacement function for the engraving tool is essentially play-free. Various types of objects are made possible. A rotary movements-effecting element includes a rotary movement-transforming element which transmits the rotary movement to a receiving element.
Abstract:
An ornamental turning device (10) comprises a shaft (11) on which is mounted a work to be decorated. The device (10) also comprises tool drive means (5) for driving a tool (7) for decorating the work (9). The driving mechanism (5) ensures that the reciprocating blade of tool (7) reciprocates at a rate proportional to the rate of rotation of the shaft (11).
Abstract:
The process and device for producing decorative panels consists in: positioning a panel (1, 2) on the table of a routing machine; controlling the relative movement of the tool (3) of the routing machine (30) and of the table on the basis of signals representative of point coordinates on the curves corresponding to the decorative drawings to be made on the panel. For use in the manufacture of cellulose door panels.
Abstract:
The proposed device foresees a localizer point (4) for an engraving machine, being integral with one end of a pantograph (5), which is connected at its opposite end to a scriber (6) or a cutter. The localizer point (4) is connected to a point guide carriage (14) sliding on a plane, both along an axis (X) and along an axis (Y) perpendicular to it. The said connection can be such as to allow the carriage (14) to rotate about the axis (0-0) of the localizer point (4). The device comprises an electronic control device (2, 3) for controlling the movement of the point guide carriage (14) and preferably also for the vertical positioning of the scriber (6) on the workpiece to be engraved.
Abstract:
An engraving machine adapted to engrave an upstanding surface of a kerbstone has a main frame (11) with a channel section (27) for receiving stencils (18) with symbols to be replicated by an engraving tool (29). The tool (29) and a complementary stencil-engaging guide (15) are mounted on a carriage (12). The carriage (12) is displaceable along sets of tubular guides (21, 19) to enable an operator to follow the symbols defined by the stencils (18). The frame (11) is stabilized by rearwardly extending arms (39) which form beds for receiving weighted objects and the arms (39) are themselves supported on a rear suface for adjustment to vary the angular disposition of the main frame (11). Alternatively thrust means (80, 60, 50) can urge the frame towards the surface to be engraved.