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Screw-type 3D printing extrusion head for continuous fiber reinforced material and using method

A continuous fiber, 3D printing technology, applied in additive processing, 3D object support structure, additive manufacturing, etc., can solve the problems of poor printing stability, insufficient precision, easy nozzle clogging, etc., to improve stability and accuracy, avoid The effect of moving distance error, reducing the risk of nozzle clogging

Inactive Publication Date: 2021-03-12
GUANGZHOU ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above problems, the present invention proposes a screw-type continuous fiber reinforced material 3D printing extrusion head and its use method, which mainly solves the problem of poor printing stability, insufficient precision and continuous fiber The problem that nozzles are easy to clog during the mixed printing process of reinforced materials and thermoplastic consumables

Method used

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  • Screw-type 3D printing extrusion head for continuous fiber reinforced material and using method
  • Screw-type 3D printing extrusion head for continuous fiber reinforced material and using method
  • Screw-type 3D printing extrusion head for continuous fiber reinforced material and using method

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Embodiment 1

[0028] refer to figure 1 , 2 3. This embodiment proposes a screw-type continuous fiber reinforced material 3D printing extrusion head, including a base frame, on which a continuous fiber consumable printing head and a thermoplastic consumable printing head are installed in parallel;

[0029] The printing head for continuous fiber consumables includes a screw guide sleeve 1 and a guide screw 2. The inside of the screw guide sleeve 1 has a first cavity 3 arranged along the length direction, and a guide screw 2 is installed in the first cavity 3. The end of the screw guide sleeve 1 is narrowed to form a print head, and the side wall of the screw guide sleeve 1 is provided with an opening 4, and the opening 4 is used for the continuous fiber consumable 20 to enter the first cavity 3;

[0030] A drive motor 5 is also installed on the base frame, the output shaft of the drive motor 5 is connected with one end of the lead screw 2 through a coupling 6 , and the lead screw 2 and the s...

Embodiment 2

[0033] On the basis of the first embodiment above, the pedestal includes a first plane plate 7 and a second plane plate 8. At least one side of the two plane plates is connected and the two plane plates are arranged at right angles along the connecting edge. On the first plane plate 7 A drive motor 5 is provided, a screw guide sleeve 1 is arranged on the second plane plate 8, and the connection between the second plane plate 8 and the screw guide sleeve 1 is the top inlet of the first cavity 3, and the first cavity The top inlet of 3 is arranged on drive motor 5 just below.

[0034] As a preferred implementation of this embodiment, by presetting a motor fixing plate on the first plane plate 7 , the driving motor 5 is installed on the motor fixing plate and indirectly on the first plane plate 7 .

[0035] The second plane plate 8 is also provided with a second cavity 9, the second cavity 9 is coaxial with the opening 4, and the second cavity 9 is provided with a guide tube 10, ...

Embodiment 3

[0041] On the basis of the second embodiment above, an adjustment device is also included. The adjustment device includes a fixed block 16, an adjustment spring 17 and a handle 18. The fixed block 16 is installed on the first flat plate 7 through the slot 19 provided on the first flat plate 7. Above, one end of the fixed block 16 is connected with the driven feed wheel 15, and the other end of the fixed block 16 is connected with the handle 18, and an adjusting spring 17 is arranged between the fixed block 16 and the first plane plate 7, and the adjusting spring 17 gives the driven The feed wheel 15 provides a reaction force in the direction of the fixed block 16 to avoid loosening of the driven feed wheel 15 . The above adjusting device is mainly used to adjust the tightness of the pre-tightening force between the driven feeding wheel 15 and the driving feeding wheel 14, or to adjust the distance between the driven feeding wheel 15 and the driving feeding wheel 14, so as to be...

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Abstract

The invention discloses a screw-type 3D printing extrusion head for a continuous fiber reinforced material and a using method. The 3D printing extrusion head comprises a base frame; the base frame isprovided with a continuous fiber consumable printing head and a thermoplastic consumable printing head arranged in parallel; the continuous fiber consumable printing head includes a screw guide sleeveand a guide screw; a first cavity arranged in the length direction is arranged in the screw guide sleeve; the guide screw is installed in the first cavity; the tail end of the screw guide sleeve is narrowed to form a printing head body; an opening is formed in the side wall of the screw guide sleeve; the opening is used for a continuous fiber consumable to enter the first cavity; the base frame is further provided with a driving motor; and an output shaft of the driving motor is connected with one end of the guide screw through a coupling. The 3D printing extrusion head has the beneficial effects that the continuous fiber consumable is fed by a screw-type feeding mechanism, the moving distance error caused by insufficient rigidity of a flexible continuous fiber consumable in the feeding process is avoided, and the stability and accuracy of feeding are greatly improved.

Description

technical field [0001] The invention relates to the technical field of fusion deposition, in particular to a screw-type continuous fiber reinforced material 3D printing extrusion head and a use method. Background technique [0002] 3D printing (3DP) is a kind of rapid prototyping technology, also known as additive manufacturing. It is based on digital model files, using powdered metal or plastic and other bondable materials to construct by layer-by-layer printing. object technology. [0003] However, continuous fiber reinforced materials are not used in the prior art. Continuous fiber reinforced materials are flexible wires, generally in the form of filaments, which have excellent properties such as high modulus, high strength, low specific gravity, and wear resistance. It has important application prospects in the fields of aerospace, national defense and military industry, and civil industry. [0004] Traditional continuous fiber reinforced material molding processes inc...

Claims

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Application Information

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IPC IPC(8): B29C64/118B29C64/209B33Y30/00
CPCB33Y30/00B29C64/118B29C64/209
Inventor 张海强陈晓佳杜俊斌赵建华
Owner GUANGZHOU ELECTRONICS TECH