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Printing end of high-viscosity ink-jet printing head and high-viscosity ink-jet printing head

An inkjet print head, high viscosity technology, used in coating devices, additive manufacturing, processing heating elements, etc., can solve problems such as inability to eject viscosity, high materials, etc.

Inactive Publication Date: 2020-10-23
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a printing end of a high-viscosity ink-jet print head and a high-viscosity ink-jet print head, which solves the problem that materials with high viscosity cannot be ejected at present

Method used

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  • Printing end of high-viscosity ink-jet printing head and high-viscosity ink-jet printing head

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0031] The invention discloses a printing end of a high-viscosity inkjet printing head, such as Figure 1~2 As shown, the printing end includes a casing 1, a PVDF tube 5, a piezoelectric ceramic tube 7 and a printing nozzle 3, the PVDF tube 5 and the piezoelectric ceramic tube 7 are located inside the casing 1, and the piezoelectric ceramic tube 7 is sleeved on the outside of the PVDF tube 5 , the printing nozzle 3 is arranged at the bottom of the PVDF pipe 5 and connected with the PVDF pipe 5 .

[0032] We use the PVDF tube 5 instead of the glass tube as the pressure chamber of the print head. The piezoelectric ceramic tube 7 is set on the PVDF tube 5 and the positive electrode of the piezoelectric ceramic tube 7 is led out with the conductive glue 6, and the wire is glued or welded with the...

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Abstract

The invention belongs to the technical field of 3D printers, and discloses a printing end of a high-viscosity ink-jet printing head. The high-viscosity ink-jet printing head comprises a shell, a PVDFtube, a piezoelectric ceramic tube and a printing nozzle, wherein the PVDF tube and the piezoelectric ceramic tube are located in the shell, the piezoelectric ceramic tube sleeves the PVDF tube, the printing nozzle is arranged at the bottom of the PVDF tube and is connected with the PVDF tube, a spring heating ring sleeves the printing nozzle, and a PVDF heat shrinkable tube is used as a pressurecavity, so that energy lost during squeezing of the piezoelectric ceramic tube is greatly reduced, high-viscosity liquid drops are easier to eject, and a spring heating ring is additionally arranged outside the printing nozzle. The invention further discloses a high-viscosity ink-jet printing head with the printing end, the high-viscosity ink-jet printing head further comprises an ink supply end,a heating element is additionally arranged at the ink supply end, the smoothness of ink supply can be effectively guaranteed through a method that heating is conducted at the ink supply end firstly and the printing head conducts compensation heating, the viscosity of the ink drops is reduced through heating of the ink supply end, the smoothness of ink supply is guaranteed, the compensation heatingof the printing head guarantees liquid viscosity of the printing head part, and ejection of the liquid drops is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of 3D printers, in particular to a printing end of a high-viscosity ink-jet print head and the high-viscosity ink-jet print head. Background technique [0002] Droplet jet printing technology is a printing technology that generates a pressure difference between the ink chamber and the outside world through a certain extrusion method, causing the internal pressure of the nozzle to be greater than the external pressure, and then pushing the ink out of the nozzle to produce tiny ink droplets. Inkjet printheads are generally classified into piezoelectric inkjet printheads and thermal bubble inkjet printheads according to the way ink droplets are generated. The piezoelectric inkjet print head uses the deformation of the piezoelectric material to generate force to eject ink droplets; the thermal bubble inkjet print head generates bubbles in the ink by heating, and ejects ink droplets through the expansion of the b...

Claims

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Application Information

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IPC IPC(8): B29C64/112B29C64/209B29C64/295B29C64/20B33Y30/00
CPCB33Y30/00B29C64/112B29C64/20B29C64/209B29C64/295
Inventor 冯佳华王莉卢秉恒傅浩杰王嘉健冯学明韦诗嘉巴佳豪
Owner XI AN JIAOTONG UNIV
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