Image engraving apparatus and engraving head
AssigneeSekise Corporation
InventorYuichi HOSHIYAMA
Life of this patent
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Abstract
The present invention provides an image engraving apparatus capable of precisely driving a stylus to improve accuracy of image engraving. The image engraving apparatus has a vibration actuator fixed to a floating base and having an output portion configured to output vibration generated by deformation of piezoelectric elements, a stylus supported with a stylus holder to be vibrated and engrave an image on a medium to be engraved, a supporting spring supporting the stylus holder, and a retainer positionally adjustably supported to the floating base to come into contact with the medium.
Claims5
An image engraving apparatus, comprising:
- a floating base elastically supported;
- a vibration actuator fixed to the floating base and including an output portion and stacked piezoelectric elements, the output portion configured to output vibration generated by deformation of the piezoelectric elements;
- a stylus holder connected to the output portion to receive the vibration;
- a stylus supported with the stylus holder to be vibrated according to the vibration received by the stylus holder and engrave an image on a medium to be engraved;
- a supporting spring supporting the stylus holder to the floating base to allow the stylus holder to be vibrated when the stylus holder receives the vibration;
- and
- a retainer positionally adjustably supported to the floating base to come into contact with the medium to be engraved and position the stylus relatively to the medium to be engraved, wherein
- relative movement between the stylus vibrated and the medium to be engraved is caused based on an image signal to engrave an image on the medium to be engraved.
An engraving head comprising:
- a head frame supported on an apparatus body through a Z-axis driving mechanism to vertically move in a Z-axis direction;
- a floating base elastically supported to the head frame in the Z-axis direction;
- a Z-axis vibration actuator fixed to the floating base and having a Z-axis output portion and stacked piezoelectric elements, the Z-axis output portion configured to output vibration generated by deformation of the piezoelectric elements of the Z-axis vibration actuator in the Z-axis direction;
- a Y-axis vibration actuator fixed to the floating base and having a Y-axis output portion and stacked piezoelectric elements, the Y-axis output portion configured to output vibration generated by deformation of the piezoelectric elements of the Y-axis vibration actuator in the Y-axis direction;
- a stylus holder connected to the Z-axis output portion and the Y-axis output portion to receive the vibrations in the Z-axis direction and the Y-axis direction;
- a stylus supported with the stylus holder to be vibrated according to the vibration received by the stylus holder and engrave an image on a medium to be engraved;
- a supporting spring supporting the stylus holder to the floating base and including a Z-axis spring portion to allow the stylus holder to be vibrated in the Z-axis direction when the stylus holder receives the vibration in the Z-axis direction and a Y-axis spring portion to allow the stylus holder to be vibrated in the Y-axis direction when the stylus holder receives the vibration in the Y-axis direction;
- and
- a retainer positionally adjustably supported to the floating base to come into contact with the medium to be engraved and position the stylus relatively to the medium to be engraved, wherein
- relative movement between the stylus vibrated and the medium to be engraved is caused based on an image signal to engrave an image on the medium to be engraved.
Dependencies are inferred from the claim text.