JPWO2020264094A5

JPWO2020264094A5 -

Info

Publication number: JPWO2020264094A5
Application number: JP2021577129A
Authority: JP
Publication date: 2023-07-04
Anticipated expiration: 2040-06-25

Claims

A printing system configured to print an object in multiple layers, comprising:
a control system;
a delivery system for delivering a viscous printing material curable by UV light to the print head;
the printhead in fluid communication with the delivery system , comprising :
an extruder in fluid communication with said feed system, said extruder having first and second portions interconnected by a seal, said first portion of said extruder being in a rotating platform; disposed with an extruder ;
a nozzle in fluid communication with the extruder;
said rotating platform configured for rotation in at least one axis about said first portion of said extruder ;
at least one curing module;
the rotating platform comprising a rotary system that provides power and control signals to the at least one curing module;
operatively connected to the control system ;
a motor connected to a drive mechanism that operates the rotating platform to rotate about the first portion of the extruder ;
configured to measure one or more parameters from one or more of the delivery system, the printhead, the object and the environment of the printhead, and to communicate the one or more measured parameters to the control system. wherein the control system is configured to control the printhead based on the one or more measured parameters received from the active feedback system;
and
A printing system comprising:

The control system is
a curing module control system configured to control operation of the at least one curing module based on the one or more measured parameters received from the active feedback system ;
2. The printing system of claim 1, further comprising a rotating platform control system configured to control operation of said rotating platform based on said one or more measured parameters received from said active feedback system.

2. The printing system of claim 1, wherein the active feedback system is configured to monitor material curing and communicate monitored curing information to the control system.

4. The printing system of Claim 3, wherein the active feedback system comprises a sensor configured to measure the heat intensity of a material polymerization reaction.

The active feedback system comprises a sensor configured to measure at least one of extruded material layer height, curing module temperature, and curing module light intensity , the active feedback system comprising: 4. The printing system of Claim 3, further configured to identify formation of the extruded material layer.

3. The printing system of Claim 1, wherein the at least one curing module comprises at least two light emitting modules.

7. The printing system of claim 6 , wherein the at least two light emitting modules are LED modules that emit ultraviolet light.

2. The printing system of Claim 1, wherein the control system comprises a replaceable curing control module configured to control operation of the at least one curing module.

2. The printing system of claim 1, wherein the measured parameter comprises flow rate of the feed system.

Further comprising an infrared temperature sensor, the control system comprises:
monitoring the temperature of the current printed layer and the previous printed layer;
Determining the kinetics of the polymerization reaction in the printed layer
2. The printing system of claim 1, configured to:

A printhead in fluid communication with a delivery system for delivering a viscous printing material curable by ultraviolet light to the printhead, comprising :
an extruder in fluid communication with said feed system, said extruder having first and second portions interconnected by a seal, said first portion of said extruder being in a rotating platform; disposed with an extruder ;
a nozzle in fluid communication with the extruder;
said rotating platform configured for rotation in at least one axis about said first portion of said extruder ;
at least one curing module;
the rotating platform comprising a rotary system that provides power and control signals to the at least one curing module;
a motor connected to a drive mechanism that operates the rotating platform to rotate about the first portion of the extruder ;
operative connection to the control system ;
an active feedback system configured to measure one or more parameters from one or more of the delivery system, the printhead, and an environment of the printhead and communicate the one or more parameters to the control system;
with
the control system is configured to control the printhead based on the one or more measured parameters received from the feedback system;
print head.

The control system is
a curing module control system configured to control operation of the at least one curing module based on the one or more measured parameters received from the active feedback system ;
a rotating platform control system configured to control operation of the rotating platform based on the one or more measured parameters received from the active feedback system ;
12. The printhead of Claim 11 , further comprising:

12. The printhead of Claim 11 , wherein the active feedback system is configured to monitor material curing and communicate monitored curing information to the control system.

14. The printhead of Claim 13 , wherein the active feedback system comprises a sensor configured to measure the thermal intensity of a material polymerization reaction.

The active feedback system comprises a sensor configured to measure at least one of extruded material layer height, curing module temperature, and curing module light intensity , the active feedback system comprising: 14. The printhead of Claim 13 , further configured to identify formation of the extruded layer of material.

12. The printhead of Claim 11 , wherein the curing module comprises at least two light emitting modules.

17. The printhead of Claim 16 , wherein the at least two light emitting modules are LED modules that emit ultraviolet light.

12. The printhead of Claim 11, wherein the control system comprises a replaceable curing control module configured to control operation of the at least one curing module.

12. The printhead of Claim 11, wherein the measured parameter comprises the flow rate of the delivery system.

Further comprising an infrared temperature sensor, the control system comprises:
monitoring the temperature of the current printed layer and the previous printed layer;
Determining the kinetics of the polymerization reaction in the printed layer
12. The printhead of claim 11, wherein the printhead is configured to: