摘要:
A doctor blade support (2) for a machine for printing paste by silk screen printing, includes: a doctor blade (6) of substantially square cross-section which is to come into contact with the meshes of a silk screen printing screen in order to apply the paste to an element to be printed; a first (12) and a second (14) clamping jaws suitable for clamping the doctor blade (6); at least two elements (20) for tightening the first clamping jaw (12) towards the second clamping jaw (14) in order to clamp or withdraw the doctor blade (6); characterized in that each tightening element (20) includes a resilient element (40) applying a force between the two clamping jaws (12, 14) in order to move them towards each other, and elements for regulating the deformation of the resilient element (40).
摘要:
A silkscreen printer machine (8) includes: a support structure (48); and at least one printing station (54) secured to the structure (48) and including at least one screen support (68) presenting a reception area adapted to receive a screen texture (70) having a pattern for printing placed thereon. The screen support (68) is carried by at least three support elements (78) secured to the structure (48), the support elements (78) not being in alignment and being positioned on either side of the reception area (69). The invention also provides associated printer apparatus.
摘要:
A printing machine includes an endless conveyor carrying a plurality of spaced object supports, at least one screenprinting station vertically aligned with the path of movement of the object supports and at least one digital inkjet printing station adapted to operate on demand. Applications include printing compact discs.
摘要:
An ultraviolet radiation drying oven includes a lamp with a localized opening for radiation to pass through and, associated with the opening, a mask mounted to move between a closed position and an open position, the mask being divided into two shutters and being coaxial with another mask also divided into two shutters.
摘要:
A printing machine includes a printing table for printing groups of objects presented in an entry support and an exit support, a transfer system disposed between the printing table and a loading system, on the one hand, and an offloading system, on the other hand. The transfer system transfers the objects one by one. The loading and offloading systems include holding arrangements which take up simultaneously and move a group of objects between the entry support or the exit support and the intermediate supports. The intermediate supports support the group of objects disposed with a predetermined spacing. Spacing modification arrangements modify the spacing of the group of objects from an entry spacing to the predetermined spacing or from the predetermined spacing to an exit spacing. The transfer system transfers the objects between the printing table and the intermediate supports.
摘要:
In a printing machine with object-carrier supports mounted to rotate, rotation drive units are used at printing stations and at processing stations to drive rotation of the object-carrier supports. The drive systems of the rotation drive units corresponding to the printing stations are separate from the drive systems of the rotation drive units corresponding to the processing stations. Applications include multicolor printing of flexible tubes.
摘要:
A silk screen printing machine wherein a screen is supported on a frame for engagement with an object to be printed. A squeegee is mounted for engagement with the screen during printing, and drive means operate to displace the screen and squeegee from the printing position after each printing operation whereby a new printing cycle can be initiated. The drive means pivots an arm which supports the squeegee. A link extends from the arm, and the link is operatively connected to the frame supporting the screen. Pivoting of the arm thereby simultaneously moves the squeegee away from the screen while moving the screen away from the object printed. The support for the screen frame is confined by a track holding the frame in a predetermined path of movement toward and away from the object printing position.
摘要:
An assembly for feeding objects from a conveyor on which they are conveyed lying down to a printing station of a printing machine where the objects are to be printed on. At the discharge end of the conveyor, at an ejection position, are provided a pair of spaced apart selector fingers having retaining and releasing positions for introducing and ejecting one object at a time. The object is accelerated or propelled from the ejection position by a tangential component of force exerted e.g. by a rotary brush or compressed-air jets, to a transfer carriage level and in alignment with the discharge end of the conveyor. Beyond the transfer carriage is a stabilizing back-up stop member having a suction head which steadies the ejected object on the transfer carriage. The transfer carriage is swung in a plane perpendicular to the axis of displacement of conveyor from its pick-up position to its feed-in position level with grippers which are adapted to introduce the object to be printed on into the printing station. Cams and linkages synchronize the movements of the selector fingers and a support lever swinging the transfer carriage between its pick-up and feed-in positions.
摘要:
A printing machine is providing including a transporter for transporting objects to be printed, a printing station including at least four printing units arranged to project ink on the objects to be printed, a transfer device for transferring an object to be printed from the transporter to the printing station and from the printing station to the transporter. The printing station includes a single mandrel corresponding to the maintenance of an object to be printed, the corresponding mandrel being rotatably movable around its axis so that the printing units project ink onto the object maintained by the corresponding mandrel, the printing station being arranged to print only the objects maintained by the corresponding mandrel.
摘要:
The invention relates to a printing machine, comprising a support stand (2), a plate (4) rotational with respect to the stand (2) about an axis of rotation (A-A), means for driving the plate in rotation, at least two mandrels (6) for holding two articles to be printed in succession, the said mandrels being carried by the plate (4), means (94) for driving the mandrels in rotation about axes of rotation (B-B) parallel to the axis of rotation (A-A) of the plate (4), and a plurality of workstations (18, 18A, 18B) distributed around the rotational plate (4). This machine is characterized in that it comprises means for the displacement of each mandrel in a plane parallel to the plane of the plate (4), in order to modify the spacing between the axis of rotation (B-B) of the mandrel and the axis of rotation (A-A) of the plate, and in that the said means for the displacement of the mandrels are designed to synchronize the displacement of each mandrel (6) with the rotation of the plate (4).