Rapid nozzle cooling for additive manufacturing
First Claim
1. A material flow regulator apparatus for regulating a material flow from a nozzle cartridge, the nozzle cartridge configured to selectively deposit a thermoplastic material when used in an additive manufacturing system, the apparatus comprising:
- a gas source manifold including a first gas outlet positioned in or adjacent to a build area of the additive manufacturing system, the first gas outlet configured to selectively release a coolant gas, the selectively-released coolant gas having a temperature that is less than a flow threshold temperature of the thermoplastic material; and
a positioning device configured to position an extrusion tip region of the nozzle cartridge adjacent to the first gas outlet such that the selectively-released coolant gas from the first gas outlet contacts an un-deposited portion of the thermoplastic material that is present at the extrusion tip of the nozzle cartridge, and wherein the first gas outlet is stationary relative to a movable extrusion tip of the nozzle cartridge.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems, devices, and methods according to the present disclosure are configured for use in additive manufacturing. Systems for additive manufacturing can include stand-alone manufacturing units, a series of units on an assembly line, or a high-capacity system with workflow automation features including a conveyor for transporting parts to or from a build area, or a robotic arm for transporting parts or adjusting a system component. An additive manufacturing system (100) can include a flow regulator (130) to change a temperature of a thermoplastic material at or in a tip (150) of a material extrusion nozzle cartridge (171), such as to enable or inhibit flow of the thermoplastic material from the tip. The flow regulator can be configured to provide a specified gas or liquid at a specified temperature, velocity, or volume.
17 Citations
20 Claims
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1. A material flow regulator apparatus for regulating a material flow from a nozzle cartridge, the nozzle cartridge configured to selectively deposit a thermoplastic material when used in an additive manufacturing system, the apparatus comprising:
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a gas source manifold including a first gas outlet positioned in or adjacent to a build area of the additive manufacturing system, the first gas outlet configured to selectively release a coolant gas, the selectively-released coolant gas having a temperature that is less than a flow threshold temperature of the thermoplastic material; and a positioning device configured to position an extrusion tip region of the nozzle cartridge adjacent to the first gas outlet such that the selectively-released coolant gas from the first gas outlet contacts an un-deposited portion of the thermoplastic material that is present at the extrusion tip of the nozzle cartridge, and wherein the first gas outlet is stationary relative to a movable extrusion tip of the nozzle cartridge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 19)
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11. A material flow regulator apparatus for regulating a material flow from a nozzle cartridge, the nozzle cartridge configured to selectively deposit a thermoplastic material when used in an additive manufacturing system, the apparatus comprising:
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a gas source manifold including a first gas outlet positioned in or adjacent to a build area of the additive manufacturing system, the first gas outlet configured to selectively release a coolant gas, the selectively-released coolant gas having a temperature that is less than a flow threshold temperature of the thermoplastic material; a positioning device configured to position an extrusion tip region of the nozzle cartridge adjacent to the first gas outlet such that the selectively-released coolant gas from the first gas outlet contacts an un-deposited portion of the thermoplastic material that is present at the extrusion tip of the nozzle cartridge; and a timer circuit configured to measure a duration of release of the coolant gas from the gas outlet, and to inhibit the release of the coolant gas when the release duration exceeds a specified duration. - View Dependent Claims (20)
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13. A material flow regulator apparatus for regulating a material flow from a nozzle cartridge, the nozzle cartridge configured to selectively deposit a thermoplastic material when used in an additive manufacturing system, the apparatus comprising:
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a gas source manifold including a first gas outlet positioned in or adjacent to a build area of the additive manufacturing system, the first gas outlet configured to selectively release a coolant gas, the selectively-released coolant gas having a temperature that is less than a flow threshold temperature of the thermoplastic material; and a positioning device configured to position an extrusion tip region of the nozzle cartridge adjacent to the first gas outlet such that the selectively-released coolant gas from the first gas outlet contacts an un-deposited portion of the thermoplastic material that is present at the extrusion tip of the nozzle cartridge wherein the extrusion tip of the nozzle cartridge is stationary relative to a movable first gas outlet.
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Specification