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Laser surrounding following 3D printing device

A 3D printing and laser technology, applied in the field of additive manufacturing, can solve problems such as the inability to effectively and accurately provide laser irradiation, and achieve excellent isotropic characteristics, low manufacturing and maintenance costs, and reasonable structural planning.

Active Publication Date: 2020-05-15
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the deficiencies in the existing technology, the technical purpose of the present invention is to provide a laser surround follow 3D printing device, to ensure that each position of the printed circuit can achieve a good laser in-situ curing effect, and to solve the problem of the existing laser-assisted FDM enhancement layer. The problem that the bonding force technology cannot effectively and accurately provide laser irradiation in some special positions

Method used

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  • Laser surrounding following 3D printing device
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  • Laser surrounding following 3D printing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] like Figure 2 to Figure 4 A laser surround-follow 3D printing device is shown, which is applied in the circuit printing process of additive manufacturing to achieve in-situ curing.

[0048] The laser surround-follow 3D printing device includes a control system, a laser 1-1, a conductive paste nozzle 1-2, a nozzle movement actuator, a surround-follow module 1-3, and an auto-focus module.

[0049] The sprinkler head motion actuator, the surround following module 1-3, the auto-focus module, the laser 1-1 and the drive circuit of the sprinkler head are respectively connected to the control system, and the control system uniformly regulates the operation of the device according to the preset program .

[0050] The spray head motion actuator includes a multi-degree-of-freedom mechanical arm 1-4 and a main shaft 1-7 installed at its end through a bracket. The bracket and the multi-degree-of-freedom mechanical arm 1-4 are articulated through a shaft perpendicular to the main...

Embodiment 2

[0062] On the basis of Embodiment 1, the outer surface of the laser mounting base 1-13 is provided with an electric sliding table guide rail, and the laser 1-1 is detachably mounted on the slide table of the electric sliding table guide rail through a clamp 1-14 , do linear motion along the guide rail. The driving device of the slide block of the guide rail of the electric slide table is connected with the control system, and when the slide table of the guide rail of the electric slide table moves, the laser 1-1 can realize Figure 4 Movement in the X-axis direction shown.

[0063] In this embodiment, when the distance between the conductive paste spray head 1-2 and the substrate changes, the control system drives the laser auto-focus module to operate according to the process parameters, and the pitch rotation and the movement along the X-axis of the laser 1-1 are synthesized to make the The laser spot is more accurately irradiated to the position of the circuit to be cured,...

Embodiment 3

[0065] like Figure 3 to Figure 5 A laser surround-following 3D printing device is shown, which is used to implement the FDM additive manufacturing process. The device includes a control system, a laser 2-1, an FDM nozzle 2-3, an FDM nozzle motion actuator, and a surround-following module 2- 4 and auto-focus module 2-5 and other components. The FDM sprinkler head motion actuator, the surround following module 2-4, the auto-focus module 2-5, the laser 2-1 and the driving circuit of the FDM sprinkler head are respectively connected to the control system, and the control system controls the The operation of the device is uniformly regulated.

[0066] The FDM nozzle motion actuator is used to drive the FDM nozzle 2-3 and other related components to move in three-dimensional space. The FDM spray head motion actuator includes a spray head main shaft 2-9, and the FDM spray head 2-3 is installed on the bottom of the spray head main shaft 2-9.

[0067] The surrounding follower modul...

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Abstract

The invention discloses a laser surrounding following 3D printing device. The laser surrounding following 3D printing device comprises a control system, a laser device, a spray head, a spray head motion executing mechanism and the like; the spray head motion executing mechanism comprises a main shaft, and a conductive slurry spray head is installed at the bottom of the main shaft; and the 3D printing device is characterized by further provided with a laser surrounding following module and a laser automatic focusing module. According to the printing device, it can be guaranteed that light spotsof the laser device always fall behind / in front of the spray head in the machining path, when the printing device is applied to the printing process of a conductive circuit, it can be guaranteed thata good laser in-situ curing effect is achieved at each position; and if the printing device is applied to an FDM additive manufacturing process, good interlayer combination of each position in an FDMprocess machining path can be ensured; and the problem that when an existing additive manufacturing 3D printing device executes a non-linear motion path, a laser irradiation point deviates from the path easily is solved, and the product machining quality is improved.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and specifically relates to a laser surround-and-follow 3D printing device. Background technique [0002] Additive manufacturing technology was proposed by American scholars in the late 1970s, and domestic scholars began related research work in the 1980s. [0003] The use of conductive paste represented by nano-silver paste can realize the direct molding additive manufacturing of high-resolution conductive lines. The manufacturing process of the circuit mainly includes printing (extrusion, spraying, etc.) forming the circuit and sintering and curing the formed circuit. stage. The laser in-situ curing manufacturing method has become a key technology for the additive manufacturing of conformal conductive lines due to its advantages of good positioning accuracy and high processing efficiency. [0004] At present, for the manufacture of conformal circuits, the relative movement betw...

Claims

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Application Information

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IPC IPC(8): B22F3/115B22F3/24B33Y10/00B33Y30/00B33Y40/20B33Y50/02
CPCB22F3/003B22F3/115B22F3/24B33Y10/00B33Y30/00B33Y40/00B33Y50/02
Inventor 肖行志廖文和李昊真俎文凯顾明飞张长东刘婷婷
Owner NANJING UNIV OF SCI & TECH