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Additive manufacturing apparatus of continuous fiber reinforced composite material

A technology for reinforcing composite materials and continuous fibers, applied in the field of additive manufacturing, can solve problems such as the inability to adjust the distance between the inner and outer ends, the inability to control the neutrality of the fiber composite material, and the inability to bond the fibers together. The effect of improving the interface bonding quality, improving the molding quality, and easy to clean the plug

Active Publication Date: 2017-09-08
陕西众德科创科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current continuous fiber reinforced composite material additive manufacturing technology research is less, still in the research and development stage, there are many problems
For example, the resin cannot fully enter the interior of the fiber ribbon, and the fiber filaments cannot be bonded together by the resin, thus forming a cavity inside the printed workpiece, which seriously reduces the mechanical properties of the workpiece
In addition, the additive manufacturing of continuous fiber-reinforced composites is prone to clogging, resulting in the inability of fibers to come out or resin overflowing from the inside of the nozzle
[0005] The invention patent with the patent number 201611004458.X, a nozzle suitable for additive manufacturing of continuous fiber reinforced composite materials and the invention patent with the patent number 201611026706.0, a nozzle suitable for 3D printing of continuous fiber reinforced The nozzle is based on the additive manufacturing of continuous fiber reinforced composite materials, but the structure of the nozzle is more complicated, resulting in a larger size of the nozzle and a larger volume of the cavity containing the resin material. In addition, the distance between the outlet of the inner nozzle and the outlet of the outer nozzle cannot be adjusted. Controlling the Alignment of Fiber Composites

Method used

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  • Additive manufacturing apparatus of continuous fiber reinforced composite material
  • Additive manufacturing apparatus of continuous fiber reinforced composite material
  • Additive manufacturing apparatus of continuous fiber reinforced composite material

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specific Embodiment approach 1

[0040] Combine below Figure 1-13 To illustrate this embodiment, the present invention belongs to the field of additive manufacturing, and more specifically, relates to a nozzle for additive manufacturing of continuous fiber reinforced composite materials, including a nozzle for additive manufacturing of continuous fiber reinforced composite materials, a two-dimensional motion platform, and a one-dimensional motion platform. Platform, workbench, wire extrusion mechanism, control device, heating device and temperature monitoring device, the structure of the nozzle is simple, the size is small, and the forming accuracy can be improved; in addition, the vertical distance between the outlet of the inner nozzle and the outlet of the outer nozzle can be adjusted. It can control the alignment of the fiber composite material and improve the molding quality; it also includes a dimensional infiltration device and a light source, which can improve the interface bonding quality between the...

specific Embodiment approach 2

[0044] Combine below Figure 1-12 Describe this embodiment, this embodiment will further explain Embodiment 1, the upper end of the outer spray head 1 is a cylinder, the lower end is a cone, two planes are symmetrically arranged on the cylinder, and the connecting hole 1-1 Located on one of the planes, the other plane is provided with a positioning hole 1-2, and the positioning hole 1-2 is a threaded blind hole. The two symmetrically arranged planes facilitate the fixing of the outer spray head 1 and the heat conduction block, and also facilitate the processing of the connecting hole 1-1 and the positioning hole 1-2. The connecting hole 1-1 is a through hole provided with an internal thread for connecting a throat. The positioning hole 1-2 is used to cooperate with the hole on the heat conduction block, so that the heat conduction block is fixedly connected with the positioning hole 1-2 by screws, so that the outer nozzle 1 and the heat conduction block are fixedly connected ...

specific Embodiment approach 3

[0046] Combine below Figure 1-13 Describe this embodiment, this embodiment will further explain Embodiment 1 or 2, the inner nozzle 2 is a cylinder, the diameter of the upper end of the inner nozzle 2 is larger than the diameter of the lower end, and the upper end of the inner nozzle 2 is provided with a tightening head 2-1, The lower end of the tightening head 2-1 is provided with a stopper 2-2, the inner cavity II2-3 runs through the inner nozzle 2 and is coaxial with the inner nozzle 2, and the inner cavity II2-3 is two cylindrical cavities Composition, the diameter of the upper cylindrical cavity is greater than the diameter of the lower cylindrical cavity, and the connection between the two cylindrical cavities is an arc transition. The tightening head 2-1 is convenient for tools such as a wrench to rotate the inner nozzle 2, which can make the inner nozzle 2 and the outer nozzle 1 tightly connected, thereby preventing resin from overflowing from the gap between the inne...

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Abstract

The invention discloses an additive manufacturing apparatus of a continuous fiber reinforced composite material. The apparatus has a simple nozzle structure and smaller dimension, and can improve moulding precision; a vertical distance between an outlet of an internal nozzle and an outlet of an external nozzle is adjustable, in order to control centering of the fiber composite material, and improve moulding quality. An additive manufacturing nozzle of the continuous fiber reinforced composite material is installed on a two-dimensional moving platform, a workbench is arranged below the additive manufacturing nozzle of the continuous fiber reinforced composite material, and the workbench is installed on a one-dimensional moving platform; a filament extruding mechanism, a heating device and a temperature monitoring device are installed on the additive manufacturing nozzle of the continuous fiber reinforced composite material and follows motion of the two-dimensional moving platform; the heating device is used for heating the additive manufacturing nozzle of the continuous fiber reinforced composite material; a temperature monitoring device is used for measuring the temperature of the additive manufacturing nozzle of the continuous fiber reinforced composite material; a controlling means is used for controlling the working states of the two-dimensional moving platform, the one-dimensional moving platform, the filament extruding mechanism, the heating device, and the temperature monitoring device.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and more specifically relates to a continuous fiber reinforced composite material additive manufacturing device. Background technique [0002] Additive manufacturing technology is an emerging technology that is rapidly developing in the field of manufacturing. It is called "manufacturing technology with important symbolic significance for the third industrial revolution", and major developed countries have listed it as a key technology for strategic development. At present, additive manufacturing technology relies on cutting-edge technologies in multiple disciplines, and has been applied in aerospace technology, automobile and home appliance manufacturing, biomedicine, food processing and other fields. Compared with traditional manufacturing technology, additive manufacturing 3D rapid prototyping manufacturing technology omits the processing and manufacturing of product molds, thus greatly s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/135B29C64/209B29C64/20B29C64/264B33Y30/00
CPCB33Y30/00
Inventor 华明进
Owner 陕西众德科创科技有限责任公司
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