Feeding mechanism of testing model 3D printer
A technology of 3D printers and feeding mechanisms, applied in 3D object support structures, metal processing equipment, manufacturing tools, etc., can solve problems such as the inability to use multiple plastic materials at the same time, and achieve a simple and practical structure, convenient threading, compact effect
Inactive Publication Date: 2019-06-18
立方通达(天津)实验仪器有限公司 +1
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Problems solved by technology
The 3D printing nozzle is suitable for liquid materials, but it has the disadvantages that it cannot use multiple plastic materials at the same time and the output accuracy is low
Method used
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[0034] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of examples, but all descriptions are only for illustration, and should not be construed as forming any limitation on the present invention . In addition, any single technical feature described or implied in each embodiment mentioned herein, or any single technical feature shown or implied in each drawing, can still be described in these technical features (or their equivalents) ) to continue any combination or deletion, so as to obtain more other embodiments of the present invention that may not be directly mentioned herein. In addition, for the sake of simplifying the drawings, the same or similar technical features may only be marked in one place in the same drawing.
[0035] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplar...
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The invention relates to a feeding mechanism of a testing model 3D printer. The mechanism comprises a bottom plate, a filiform plastic printing head and a powder plastic printing head; the filiform plastic printing head and the powder plastic printing head comprise upright plates which are fixedly connected with the bottom plate, rotary arms with upper oblique faces arranged at the upper ends, filament feeding wheels which are pivotedly connected with the lower ends of the rotary arms, filament feeding gears which are pivotedly connected with the upright plates and opposite to the filament feeding wheels, stepping motors which are fixedly connected with the upright plates with output shafts fixedly connected with the filament feeding gears and feeding heads which are provided with filamentpassing holes and heating devices and fixedly connected with the bottom plate; the powder plastic printing head further comprises rotary screw rods, the rotary screw rods penetrate through a discharging passage to meshes with the filament feeding gears. The mechanism is suitable for solid filiform plastic or powder plastic, and higher discharging precision is achieved.
Description
technical field [0001] The invention belongs to the technical field of rapid prototyping, and in particular relates to a feeding mechanism of a test model 3D printer. Background technique [0002] 3D printing (three-dimensional printing) is a kind of rapid prototyping technology. It is based on a digital model file, using plastic and other materials, extruded through a nozzle with a fine nozzle, and starts to solidify after the temperature is lower than the curing temperature. , through the accumulation of layers of plastic materials to finally form a finished product, and the technology of constructing objects by layer-by-layer printing. Chinese patent application number: CN201310242128.4 discloses a 3D printing nozzle, including: a melt tank, an electric valve, a gear pump, a first motor, a second motor and a nozzle; wherein, the first motor is fixedly arranged on One side of the electric valve, and controls the switch of the electric valve; the second motor control is fi...
Claims
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IPC IPC(8): B29C64/118B29C64/336B33Y40/00
Inventor 李芳高彦成马国伟王里
Owner 立方通达(天津)实验仪器有限公司