A low-temperature printing platform and a detection method for falling material of the low-temperature printing platform

A printing platform and detection method technology, applied in the field of 3D printing, can solve the problems of being unable to actually determine whether the nozzle has been extruded with material, material leakage printing, etc., to achieve the effects of preventing leakage printing, improving efficiency, and high cooling efficiency

Active Publication Date: 2021-05-18
MEDPRIN REGENERATIVE MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This control process belongs to open-loop control, and only a certain time (that is, the time for printing the skirt) is given for the pre-extrusion of the nozzle material. In this process, the system cannot actually determine whether the material has been extruded from the nozzle, so the material leakage The printing phenomenon cannot be fundamentally resolved

Method used

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  • A low-temperature printing platform and a detection method for falling material of the low-temperature printing platform
  • A low-temperature printing platform and a detection method for falling material of the low-temperature printing platform
  • A low-temperature printing platform and a detection method for falling material of the low-temperature printing platform

Examples

Experimental program
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Effect test

Embodiment 1

[0053] figure 1 , 2 Shown is a schematic diagram of the structure of the low-temperature printing platform in this embodiment. The low-temperature printing platform can perform blanking detection on the pre-extrusion operation of the needle tip of the nozzle, and includes a blanking detection module 6 and a controller. The controller and the blanking detection The module is connected in communication, and the described falling material detection module 6 includes a sensor, and the sensor has a material falling identification area, and the material extruded by the needle tip of the nozzle can pass through the material falling identification area of ​​the sensor in the material falling detection module for material falling Detection, the controller can judge whether there is printing material extruded according to the open circuit signal in the blanking identification area.

[0054] In this embodiment, the sensor is an optical sensor, and the blanking identification area is an ...

Embodiment 2

[0065] Other parts of this embodiment are the same as Embodiment 1, the difference is that in this embodiment, the sensor is an image sensor, and the falling material recognition area is an image recognition area. material situation.

Embodiment 3

[0067] Other parts of this embodiment are the same as in Embodiment 1, such as Figure 6 As shown, the low-temperature printing platform further includes a blanking storage module 4, which is arranged below the optical sensor of the blanking detection module 6 and can store dropped blanking.

[0068] The blanking storage module 4 may include a storage box main body 41, a magnetic attraction 42 and a storage box slot 43, and the storage box main body 41 is located below the transmitting end 601 and the receiving end 602 and is located on the first fixing bracket 603 Between the second fixing bracket 604, the storage box slot 43 can limit the position of the storage box main body 41, and the magnetic attraction 42 is located in the storage box slot 43 and can attract and fix the storage box main body 41 on the Storage box card slot 43.

[0069] Specifically, the blanking storage module 4 is arranged on the platform substrate 1001, and the position of the platform substrate 1001...

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Abstract

The invention provides a low-temperature printing platform and a method for detecting material falling of the low-temperature printing platform. The printing platform can detect material falling of the needle tip of the nozzle, and includes a low-temperature printing area and a material falling detection module located on one side of the low-temperature printing area. The falling The material detection module includes a sensor, which is used to sense whether there is printing material extruded from the needle tip of the nozzle and to feed back the sensing signal to the controller. The present invention can realize material drop detection on the needle tip of the nozzle before printing starts, ensures that the needle tip of the nozzle completes the pre-extrusion operation, and effectively prevents the phenomenon of missing printing at the beginning of official printing.

Description

technical field [0001] The present invention relates to the technical field of 3D printing, and more specifically, to a low-temperature printing platform and a method for detecting blanking of the low-temperature printing platform. Background technique [0002] It is a common printing method in 3D printing equipment to transfer materials to a molding platform in the form of extrusion, injection or emission according to a predetermined trajectory, and accumulate them layer by layer to finally obtain a 3D model. Before printing, the virtual 3D model is layered and sliced ​​by software and the nozzle movement trajectory of each layer contour is planned. After the planning is completed, the movement trajectory is assigned to the designated nozzle. At the beginning of printing, the moving platform of the printer drives the nozzle to move according to the predetermined trajectory, and the nozzle simultaneously transfers the material to the forming platform. [0003] In the above ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/245B29C64/35B29C64/30B29C64/386B33Y40/00B33Y50/00
CPCB33Y40/00B33Y50/00B29C64/245B29C64/30B29C64/35B29C64/386
Inventor 张传杰袁玉宇
Owner MEDPRIN REGENERATIVE MEDICAL TECH
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