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Plunger type continuous extrusion device for additive manufacturing of energetic material

A technology of additive manufacturing and extrusion equipment, which is applied in the field of energetic material additive manufacturing plunger type continuous extrusion equipment, which can solve the problem of poor control stability of pneumatic extrusion, difficulty in controlling extrusion speed, and limited size of molded parts To achieve the effect of improving melting efficiency and thermal uniformity, ensuring material temperature consistency, and simple structure

Active Publication Date: 2019-10-25
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a plunger-type continuous extrusion device for additive manufacturing of energetic materials, which solves the problems existing in the original plunger type, overcomes the poor control stability of pneumatic extrusion, and is difficult to control the extrusion speed , and can only be fed at one time, and cannot be added during the printing process, so the size of the printed molded part is limited and other problems

Method used

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  • Plunger type continuous extrusion device for additive manufacturing of energetic material
  • Plunger type continuous extrusion device for additive manufacturing of energetic material
  • Plunger type continuous extrusion device for additive manufacturing of energetic material

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] to combine Figure 1 to Figure 6 , a plunger-type continuous extrusion device for additive manufacturing of energetic materials, including a temperature control system, an extrusion system, two transmission systems and two plunger connectors 11, the two transmission systems are symmetrically arranged on both sides of the extrusion system The two sides are respectively connected to the extrusion system through the plunger connector 11, and the temperature control system is fixed on the extrusion system.

[0021] The extrusion system includes a barrel 13, a rotating assembly 10, a connecting flange 15, a nozzle cover 16, a nozzle 17, a first coupling 9, a first stepping motor 8, two plunger rods 12 and two single Directional valve 14; Machine barrel 13 comprises cylinder 13-1, circular tube 13-2 and two connecting plates 13-3, and circular tube 13-2 is ...

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Abstract

The invention discloses a plunger type continuous extrusion device for additive manufacturing of an energetic material. The device comprises a temperature control system, an extrusion system, two transmission systems and two plunger connecting parts, wherein the two transmission systems are symmetrically arranged on the two sides of the extrusion system, the extrusion systems are connected with the extrusion system through the plunger connecting parts correspondingly, so that the rising and falling of the extrusion system are controlled, and the temperature control system is fixed on the extrusion system. According to the plunger type continuous extrusion device for the additive manufacturing of the energetic material, the preheating efficiency is improved, and the problem that continuousand stable feeding cannot be realized in plunger type 3D printing is solved.

Description

technical field [0001] The invention belongs to the FDM deposition and melting technology for additive manufacturing of energetic materials, and in particular to a plunger type continuous extrusion device for additive manufacturing of energetic materials. Background technique [0002] Energetic materials are compounds or mixtures that are explosive or have oxidizers and combustibles, which can independently undergo chemical reactions and release a large amount of energy, gas and heat when stimulated by a certain amount of energy from the outside. Traditional energetic material forming methods mainly include casting method, compression stretching method and casting method. With the continuous development of ammunition weapon technology, the problems of traditional molding methods such as cumbersome process, poor adaptability of complex special-shaped grain, low production efficiency, and low safety in the molding process have become increasingly prominent, and it is increasin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/118B29C64/20B29C64/295B29C64/227B29C64/393B33Y30/00B33Y50/02
CPCB33Y30/00B33Y50/02B29C64/118B29C64/20B29C64/227B29C64/295B29C64/393
Inventor 黄玲万李行管梦茹
Owner NANJING UNIV OF SCI & TECH
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