Printing machine and a method of printing
First Claim
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1. A printing machine for printing articles that are substantially in the form of bodies of revolution, the machine comprising:
- a structure;
mandrels for carrying articles for printing, each mandrel being suitable for being driven in rotation about an axis of rotation corresponding substantially to an axis of symmetry of the article for printing;
drive means for driving the article for printing so as to cause the mandrels to be moved between transfer positions and at least one printing position;
a turntable carrying the mandrels, the turntable being driven in rotation by the drive means;
displacement means for moving the mandrels in a radial direction relative to the turntable to move the mandrels away from or towards a printer station, each mandrel being moved between transfer positions and at least one printing position; and
the printer station comprising a support plate and a printer unit fastened to the support plate to project ink onto the articles for printing;
wherein the printer station includes at least one additional printer unit, and the printer units are arranged beside one another around a semi-circle centered on the axis of rotation of the mandrel, a diameter of said semi-circle, passing by the ends of said semi-circle, being perpendicular to the radial direction, when the mandrel is placed in its printing position.
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Abstract
The invention relates to a printing machine comprising a support plate (42) and a printer unit (44) fastened to the support plate (42) to project ink onto articles for printing. The printer station includes at least one additional printer unit (46, 48, 50), and the printer units (44, 46, 48, 50) are arranged beside one another on a circle centered on the axis of rotation (B-B) of a mandrel (8), when the mandrel (8) is placed in its printing position. The invention also provides a method of printing.
32 Citations
20 Claims
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1. A printing machine for printing articles that are substantially in the form of bodies of revolution, the machine comprising:
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a structure; mandrels for carrying articles for printing, each mandrel being suitable for being driven in rotation about an axis of rotation corresponding substantially to an axis of symmetry of the article for printing; drive means for driving the article for printing so as to cause the mandrels to be moved between transfer positions and at least one printing position; a turntable carrying the mandrels, the turntable being driven in rotation by the drive means; displacement means for moving the mandrels in a radial direction relative to the turntable to move the mandrels away from or towards a printer station, each mandrel being moved between transfer positions and at least one printing position; and the printer station comprising a support plate and a printer unit fastened to the support plate to project ink onto the articles for printing; wherein the printer station includes at least one additional printer unit, and the printer units are arranged beside one another around a semi-circle centered on the axis of rotation of the mandrel, a diameter of said semi-circle, passing by the ends of said semi-circle, being perpendicular to the radial direction, when the mandrel is placed in its printing position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A printing machine for printing articles that are substantially in the form of bodies of revolution, the machine comprising:
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a structure; a plurality of mandrels for carrying articles for printing, each mandrel being adapted for being driven in rotation about an axis of rotation corresponding substantially to an axis of symmetry of the article for printing; a rotary drive configured for driving the article for printing so as to cause the mandrels to be moved between transfer positions and at least one printing position; a turntable carrying the mandrels, the turntable being driven in rotation by the drive; slideways and guide rails configured for moving the mandrels in a radial direction relative to the turntable to move the mandrels away from or towards a printer station, each mandrel being moved between transfer positions and at least one printing position; and the printer station comprising a support plate and a printer unit fastened to the support plate to project ink onto the articles for printing; wherein the printer station includes at least one additional printer unit, and the printer units are arranged beside one another around a semi-circle centered on the axis of rotation of the mandrel, a diameter of said semi-circle, passing by the ends of said semi-circle, being perpendicular to the radial direction, when the mandrel is placed in its printing position. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification