Sliding core powder feeding type 3d printer powder supply device
A 3D printer and powder supply device technology, applied in the field of additive manufacturing, can solve the problems of complex powder supply device structure and unreliable powder supply, and achieve the effect of simple structure and convenient powder loading
Active Publication Date: 2019-08-06
SHANDONG MACHINERY DESIGN INST
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Problems solved by technology
[0003] In order to solve the problems of complex structure and unreliable powder supply of the powder supply device, the present invention provides a sliding core powder feeding type 3D printer powder supply device, which has various types of powder feeding, such as upper powder feeding, lower powder feeding and double powder feeding on both sides. Form, which is characterized by the reciprocating movement of the sliding core to quantify the required powder each time and transport it to the required position of the powder spreading scraper device
Method used
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Embodiment Construction
[0023] Such as Figure 3 ~ Figure 13 As shown, it is an embodiment of a powder supply device for a 3D printer. Under the powder box (101), there is a cavity, and there is a sliding core in the cavity, and there is an abdominal cavity in the sliding core; the upper part of the cavity communicates with the powder inlet, and the cavity The sliding core inside can slide back and forth in the cavity. When the sliding core retreats and its abdominal cavity is connected to the powder inlet, the powder to be used (2) enters the abdominal cavity. When the sliding core moves forward, its abdominal cavity is connected to the powder outlet. , the ready-to-use powder (2) is spit out from the abdominal cavity through the powder outlet, that is, the powder supply device (1) supplies powder to the powder spreading scraper device (7). A powder feeding cycle is completed; the amount of powder feeding is controlled by the volume of the abdominal cavity.
[0024] Such as image 3 , Figure 4 A...
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The powder feeding device of the sliding core powder feeding type 3D printer belongs to the field of additive manufacturing; the device is placed under the powder box, and is provided with a cavity. The mouth is connected, and the sliding core in the cavity can slide back and forth in the cavity. When the sliding core retreats and its abdominal cavity is connected to the powder inlet, the powder to be used enters the abdominal cavity. When the sliding core advances, its abdominal cavity and the powder outlet When it is turned on, the powder to be used is spit out from the abdominal cavity through the powder outlet, that is, the powder supply device supplies powder to the powder spreading scraper device; under the control of the control system, the powder supply time and powder supply volume can be accurately guaranteed, and the structure is simple. Easy to load powder.
Description
technical field [0001] The invention relates to the field of additive manufacturing, in particular to a 3D printer for forming workpieces through "layer-by-layer manufacturing and layer-by-layer stacking". Background technique [0002] Using different materials or different molding processes, the structure and principle of 3D printers are also different. 3D printers that are layer-by-layer powder sintered, or layer-by-layer solidified are one of the 3D printers with a relatively mature structure. Including metal powder and non-metal powder 3D printers. figure 1 , figure 2 It is a schematic diagram of a 3D printer. Usually, its main structure is composed of a powder supply device 1, a powder spreading scraper device 7, a molding chamber system 6, a sintering or curing device 8, a powder collection chamber 5, a control system, a cooling and an air circulation system, etc.; printed parts There are three main steps, the first step: powder feeding; the powder supply device 1 s...
Claims
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IPC IPC(8): B29C64/321B33Y40/00
CPCB22F12/57B22F12/52B22F12/222B22F2999/00B07B13/04Y02P10/25
Inventor 党金行
Owner SHANDONG MACHINERY DESIGN INST