Additive manufacturing sprayer for fiber reinforced composite material based on ultrasonic enhancing

A reinforced composite material and additive manufacturing technology, applied in the field of additive manufacturing, can solve problems such as easy plugging, fiber cannot be produced, and is in the research and development stage, achieving the effects of quick cleaning, improved printing quality, and enhanced bonding effect

Active Publication Date: 2017-02-01
HARBIN INST OF TECH
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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

Method used

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  • Additive manufacturing sprayer for fiber reinforced composite material based on ultrasonic enhancing
  • Additive manufacturing sprayer for fiber reinforced composite material based on ultrasonic enhancing
  • Additive manufacturing sprayer for fiber reinforced composite material based on ultrasonic enhancing

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Specific embodiment one:

[0031] Combine below figure 1 , 2 3. Description of this embodiment. The present invention belongs to the field of additive manufacturing. More specifically, it relates to a nozzle based on an ultrasonic-enhanced fiber-reinforced composite material additive manufacturing, including a nozzle 1, an inner cavity 2, a heat conducting block 3, and a cap 4. , Fiber sprinkler 5, fiber throat 6, Teflon tube Ⅰ 7, resin nozzle 8, resin throat 9, Teflon tube Ⅱ 10, heating rod 13, temperature sensor 14 and ultrasonic generator 16, can improve the resin and fiber The bonding effect prevents the head from clogging and is easy to clean the nozzle.

[0032] The spray head 1 is detachably connected to the lower end of the inner cavity 2, the heat conducting block 3 is sleeved on the spray head 1, a heating rod 13 and a temperature sensor 14 are nested on the heat conducting block 3, and the upper end of the inner cavity 2 is detachable Connected with cap 4. The d...

Example Embodiment

[0038] Specific implementation manner two:

[0039] Combine below figure 1 , 2 3. Description of this embodiment. This embodiment will further explain the first embodiment. The inner cavity 2 includes an inclined section I2-1 and a vertical section I2-2, and the fiber nozzle 5 includes an inclined section II5-1 and a vertical section II5. -2. The inclined section I2-1 of the inner cavity 2 and the inclined section II5-1 of the fiber nozzle 5 form a resin material flow guide cavity whose cross-sectional area decreases from top to bottom, and the vertical section I2 of the inner cavity 2 -2 forms a cylindrical extrusion cavity, and the vertical section II5-2 of the fiber nozzle 5 forms a cylindrical baffle column. The cross-sectional area of ​​the outlet of the grease flow guiding cavity is getting smaller and smaller, so that the flow speed of the resin increases, and the pressure at the outlet increases, so that the resin and fiber bonding effect is better, thereby improving the ...

Example Embodiment

[0040] Specific implementation manner three:

[0041] Combine below figure 1 , 2 3 illustrates this embodiment. This embodiment further illustrates the first embodiment. The lowermost end of the vertical section II5-2 of the fiber spray head 5 is located in the vertical section I2-2 of the inner cavity 2. This can effectively ensure that the fiber 11 is in the middle of the resin, thereby improving the printing effect.

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PUM

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Abstract

The invention belongs to the field of additive manufacturing and relates to an additive manufacturing sprayer for a fiber reinforced composite material based on ultrasonic enhancing. The additive manufacturing sprayer for the fiber reinforced composite material based on ultrasonic enhancing comprises a sprayer body, an inner cavity, a heat conducting block, a cap, a fiber sprayer body, a fiber throat pipe, a polytetrafluoroethylene pipe I, a resin sprayer body, a resin throat pipe, a polytetrafluoroethylene pipe II, heating rods, temperature sensors and ultrasonic generators, the resin and fiber bonding effect can be improved, sprayer blockage is prevented, and the sprayer body can be conveniently cleaned. The sprayer body is detachably connected to the lower end of the inner cavity and is sleeved with the heat conducting block; the heating rods and the temperature sensors are arranged on the heat conducting block in a nested manner; the upper end of the inner cavity is detachably connected with the cap; the fiber throat pipe and the resin throat pipe are both detachably connected to through holes of the cap; the through hole connected with the resin throat pipe is further detachably connected with the resin sprayer body; the polytetrafluoroethylene pipe I is arranged in the fiber throat pipe in a sleeved manner; the lower end of the fiber throat pipe is detachably connected with the fiber sprayer body; the polytetrafluoroethylene pipe II is arranged in the resin throat pipe in a sleeved manner; and a cavity is formed after the inner cavity is connected with the cap.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and more specifically relates to a nozzle based on ultrasonically reinforced fiber-reinforced composite material additive manufacturing. 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 produ...

Claims

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Application Information

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IPC IPC(8): B29C64/118B29C64/209B33Y30/00B33Y70/00
CPCB33Y30/00B33Y70/00
Inventor 李隆球乔健鑫夏正付李英睿邵广斌俞中委
Owner HARBIN INST OF TECH
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