Coater arrangement for a 3D printer
A coating device arrangement 1 for a 3D printer 100 is described, comprising a coating device 3 having a carrier structure 21 a to 21 c and a container 17 fixed to the carrier structure, defining an inner cavity for receiving particulate construction material, which leads to an opening for outputting the particulate construction material, a vibration device 23 configured to vibrate particulate construction material received in the container and thereby to influence the discharge of construction material from the opening, and a stroking member 15 a attached to the coating device, configured to stroke particulate construction material output from the opening to thereby level and/or compress the output particulate material, and/or a closing device 31 configured to selectively close the opening and comprising a closing member 31 a attached to the coating device 3 , wherein the stroking member 15 a and/or the closing member 31 a are fixed to the carrier structure to be vibration-decoupled from the vibration generated by means of the vibration device in the container 17.
1. A coating device arrangement ( 1 ) for a 3D printer ( 100 ) comprising a coating device ( 3 ) having a carrier structure ( 21 a to 21 c ) and a container ( 17 ) fixed to the carrier structure, which defines an inner cavity for receiving a particulate construction material and leads to an opening for outputting the particulate construction material, a vibration device ( 23 ) configured to vibrate the particulate construction material received in the container and thereby to influence the discharge of the particulate construction material from the opening, and a stroking member ( 15 a ) attached to the coating device, configured to stroke the particulate construction material outputted from the opening, to thereby level and/or compress the outputted particulate construction material, and a closing device ( 31 ) configured to selectively close the opening and comprising a closing member ( 31 a ) attached to the coating device ( 3 ),
characterized in that
the stroking member ( 15 a ) and/or the closing member ( 31 a ) is/are fixed to the carrier structure in a way to be vibration-decoupled from the vibration generated by the vibration device in the container ( 17 ).
2. A coating device arrangement ( 1 ) according to claim 1 further comprising a first and a second stroking member ( 15 a , 15 b ) which are fixed to the carrier structure to be respectively vibration-decoupled from the vibration generated by means of the vibration device in the container ( 17 ).
3. A coating device arrangement ( 1 ) according to claim 1 further comprising a first and a second closing member ( 31 a , 31 b ) which are fixed to the carrier structure to be respectively vibration-decoupled from the vibration generated by means of the vibration device in the container( 17 ).
4. A coating arrangement ( 1 ) according to claim 1 wherein the stroking member ( 15 a , 15 b ) and/or the closing member ( 31 a , 31 b ) is/are fixed to the carrier structure ( 21 a to 21 c ) in a substantially rigid way, or wherein the stroking member ( 15 a , 15 b ) and/or the closing member ( 31 a , 31 b ) is/are fixed to the carrier structure ( 21 a to 21 c ) separately from a wall portion ( 17 a ) of the container, or wherein the stroking member ( 15 a , 15 b ) and/or the closing member ( 31 a , 31 b ) is/are fixed to the carrier structure ( 21 a to 21 c ) separately from the container ( 17 ), or wherein the stroking member ( 15 a , 15 b ) and/or the closing member ( 31 a , 31 b ) is/are arranged at a vertical distance to the opening underneath the same, or wherein the stroking member ( 15 a , 15 b ) and the closing member ( 31 a , 31 b ) are fixed to the carrier structure ( 21 a to 21 c ) together.
5. A coating device arrangement ( 1 ) according to claim 1 wherein a wall portion ( 17 a ) of the container ( 3 ) is attached to the carrier structure ( 21 b ) through the vibration device ( 23 ).
6. A coating device arrangement ( 1 ) according to claim 1 wherein a wall portion ( 17 b ) of the container ( 17 ) is fixed to the carrier structure ( 21 a ) by means of a damping device ( 25 ).
7. A coating device arrangement ( 1 ) according to claim 6 , wherein the damping device ( 25 ) comprises a damping part ( 25 b ) arranged between the carrier structure ( 21 a ) and the wall portion ( 17 b ).
8. A coating device arrangement ( 1 ) according to claim 1 further comprising a charging container ( 19 ) arranged above the container ( 17 ) to supply the container with the particulate construction material, and which is vibration decoupled from the vibration generated by means of the vibration device in the container ( 17 ).
9. A coating device arrangement ( 1 ) according to claim 1 further comprising a control unit configured to control the vibration device ( 23 ) in such a way to selectively vibrate the particulate construction material.
10. A coating device arrangement ( 1 ) according to claim 1 further comprising a guiding structure ( 103 ) along which the coating device ( 3 ) is displaceable.
11. A 3D printer comprising a coating device arrangement ( 1 ) for a 3D printer ( 100 ), the coating device arrangement ( 100 ) having a coating device ( 3 ) having a carrier structure ( 21 a to 21 c ) and a container ( 17 ) fixed to the carrier structure, which defines an inner cavity for receiving a particulate construction material, which leads to an opening for outputting the particulate construction material, a vibration device ( 23 ) configured to vibrate the particulate construction material received in the container and thereby to influence the discharge of the particulate construction material from the opening, and a stroking member ( 15 a ) attached to the coating device, configured to stroke the particulate construction material outputted from the opening, to thereby level and/or compress the outputted particulate material, and a closing device ( 31 ) configured to selectively close the opening and comprising a closing member ( 31 a ) attached to the coating device ( 3 ),
characterized in that
the stroking member ( 15 a ) and/or the closing member ( 31 a ) is/are fixed to the carrier structure in a way to be vibration-decoupled from the vibration generated by the vibration device in the container ( 17 ).
12. A coating device arrangement ( 1 ) for a 3D printer ( 100 ) comprising a coating device ( 3 ) having a carrier structure ( 21 a to 21 c ) and a container ( 17 ) fixed to the carrier structure, which defines an inner cavity for receiving a particulate construction material and leads to an opening for outputting the particulate construction material, a shaking device ( 23 ) configured to expose a first wall portion ( 17 a ) of the container to a shaking motion and to thereby influence the discharge of the particulate construction material from the opening, and a stroking member ( 15 a ) attached to the coating device, configured to stroke the particulate construction material outputted from the opening to thereby level and/or compress the outputted particulate construction material, and a closing device ( 31 ) configured to selectively close the opening and comprising a closing member ( 31 a ) attached to the coating device ( 3 ),
characterized in that
the stroking member ( 15 a ) and/or the closing member ( 31 a ) is/are fixed to the carrier structure to be shaking motion-decoupled from the shaking motion generated by means of the shaking device on the first wall portion ( 17 a ) of the container.
13. A coating device arrangement ( 1 ) according to claim 12 further comprising a first and a second stroking member ( 15 a , 15 b ) which are fixed to the carrier structure to be respectively shaking motion-decoupled from the first wall portion ( 17 a ) of the container.
14. A coating device arrangement ( 1 ) according to claim 12 further comprising a first and a second closing member ( 31 a , 31 b ) which are fixed to the carrier structure to be respectively shaking motion-decoupled from the first wall portion ( 17 a ) of the container.
15. A coating arrangement ( 1 ) according to claim 12 wherein the stroking member ( 15 a , 15 b ) and/or the closing member ( 31 a , 31 b ) are fixed to the carrier structure ( 21 a to 21 c ) in a substantially rigid way, or wherein the respective stroking member ( 15 a , 15 b ) and/or the closing member ( 31 a , 31 b ) are fixed to the carrier structure ( 21 a to 21 c ) separately from the first wall portion ( 17 a ) of the container, or wherein the stroking member ( 15 a , 15 b ) and/or the closing member ( 31 a , 31 b ) are fixed to the carrier structure ( 21 a to 21 c ) separately from the container ( 17 ), or wherein the stroking member ( 15 a , 15 b ) and/or the closing member ( 31 a , 31 b ) are arranged at a vertical distance to the opening underneath the same, or wherein the stroking member ( 15 a , 15 b ) and the closing member ( 31 a , 31 b ) are fixed to the carrier structure ( 21 a to 21 c ) together.
16. A coating device arrangement ( 1 ) according to claim 12 wherein the first wall portion ( 17 a ) of the container ( 3 ) is attached to the carrier structure ( 21 b ) through the shaking device ( 23 ).
17. A coating device arrangement ( 1 ) according to claim 12 wherein the shaking device ( 23 ) is formed by an eccentric device.
18. A coating device arrangement ( 1 ) according to claim 17 wherein the eccentric device comprises a shaft ( 23 a ) rotatably fixed to the carrier structure ( 21 a ), an eccentric ( 23 c ) attached to the shaft ( 23 a ), and a connecting rod ( 23 b ) connected to the first wall portion ( 17 ) of the container ( 3 ).
19. A coating device arrangement ( 1 ) according to claim 12 wherein a second wall portion ( 17 b ) of the container ( 17 ) is fixed to the carrier structure ( 21 a ) by means of a damping device ( 25 ).
20. A coating device arrangement ( 1 ) according to claim 19 wherein the damping device ( 25 ) comprises a damping part ( 25 b ) arranged between the carrier structure ( 21 a ) and the second wall portion ( 17 b ).
21. A coating device arrangement ( 1 ) according to claim 12 further comprising a charging container ( 19 ) arranged above the container ( 17 ) to supply the container with the particulate construction material, and which is shaking motion-decoupled from the shaking motion generated by means of the shaking device on the first wall portion ( 17 a ) of the container.
22. A coating device arrangement ( 1 ) according to claim 12 further comprising a control unit configured to control the shaking device ( 23 ) in such a way to selectively expose the first wall portion ( 17 a ) of the container ( 17 ) to a shaking motion, respectively.
23. A coating device arrangement ( 1 ) according to claim 12 further comprising a guiding structure ( 103 ) along which the coating device ( 3 ) is displaceable.
24. A 3D printer comprising a coating device arrangement ( 1 ) for a 3D printer ( 100 ), the coating device arrangement ( 1 ) comprising a coating device ( 3 ) having a carrier structure ( 21 a to 21 c ) and a container ( 17 ) fixed to the carrier structure, which defines an inner cavity for receiving a particulate construction material and leads to an opening for outputting the particulate construction material, a shaking device ( 23 ) configured to expose a wall portion ( 17 a ) of the container to a shaking motion and to thereby influence the discharge of the particulate construction material from the opening, and a stroking member ( 15 a ) attached to the coating device, configured to stroke the particulate construction material outputted from the opening to thereby level and/or compress the outputted particulate material, and a closing device ( 31 ) configured to selectively close the opening and comprising a closing member ( 31 a ) attached to the coating device ( 3 ),
characterized in that
the stroking member ( 15 a ) and/or the closing member ( 31 a ) is/are fixed to the carrier structure to be shaking motion-decoupled from the shaking motion generated by means of the shaking device on the wall portion ( 17 a ) of the container.