Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Inkjet head

A technology of inkjet head and nozzle, applied in the direction of inking device, printing, etc., which can solve the problems of unfavorable miniaturization of highly integrated inkjet head, impossibility of small flow path structure, complicated manufacturing process, etc.

Inactive Publication Date: 2006-08-16
BROTHER KOGYO KK
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inkjet head of EP1057633A1 is not equipped with any filter, which is obviously not conducive to the high resolution of the inkjet head
Moreover, if it is necessary to additionally install a filter in the inkjet head, the manufacturing process is complicated, and it is impossible to form a small flow path structure, which is not conducive to the high integration of the flow path and the miniaturization of the inkjet head.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Inkjet head
  • Inkjet head
  • Inkjet head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The inkjet head body 1a is composed of a cavity plate group 10 as the above-mentioned flow path unit as shown in FIG. 4 , and an actuator unit 30 fixed thereon as shown in FIG. 5 .

[0069] The cavity plate assembly 10 has a structure in which the upper surface of the ink supply port 41 is opened to supply ink from an ink cartridge (ink source) not shown. The ink supply port 41 is connected to the common ink chamber 23 formed inside the cavity plate group 10 through the ink supply channel 42 . In the middle of the ink supply flow path 42, a first filter 61 is provided.

[0070] The ink supply port 41 is arranged on the opening 903b formed by the lower part 945 of the above-mentioned base block 938 (such as image 3 shown) at the position. Therefore, the ink in the ink storage chamber 903 can be supplied to the ink supply port 41 as appropriate.

[0071] On the upper surface of the cavity plate group 10, a diamond-shaped pressure chamber 20 is recessed. Although only...

Embodiment 2

[0123] Next, Example 2 will be described. In this second embodiment, the configurations of the restricted flow path 56 and the filters 61 and 62 of the first embodiment are slightly changed.

[0124] FIG. 10 is a plan view of the ink jet head of Embodiment 2. FIG. Fig. 11 is a perspective view of the ink jet head showing a cross section along line P-P in Fig. 10 .

[0125] In the ink-jet head body 1a in the second embodiment, the cavity plate group 10y, as shown in FIG. 11, has a structure in which eight flat plates 111-118 are laminated and bonded to each other. exist Figure 12 In , the stacked structure of the cavity plate group 10y is shown in an exploded perspective view.

[0126] In addition, in this Example 2, when specifying each of the flat plates 111 to 118, they are also referred to as "0th flat plate" from the side away from the nozzle 21 . In addition, in this embodiment, the fifth flat plate 115 among the eight flat plates 111 to 118 is concentratedly describ...

Embodiment 3

[0143] Next, a third embodiment of the ink jet head will be described with reference to Figs. 14 to 19 attached.

[0144] FIG. 14 is a plan view of the ink jet head of Embodiment 3. FIG.

[0145] Fig. 15 is a perspective view of the ink jet head showing a cross section along line P-P in Fig. 14 .

[0146] Figure 16 It is an exploded perspective view showing the laminated structure of the cavity plate group of the inkjet head of Example 3.

[0147] Figure 17 It is an enlarged perspective view showing a third plate of Example 3.

[0148] Fig. 18(a) is an enlarged perspective view of main parts showing the structure of the restricted flow path of the third embodiment.

[0149] Fig. 18(b) is an enlarged perspective view of main parts showing a reference example in which no protrusion is provided in the restricted flow path.

[0150] Figure 19 An enlarged perspective view of main parts showing a modified example of a restricted flow path.

[0151] In the ink-jet head body 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An ink-jet head includes a plurality of nozzles that eject ink, a first flat plate layer including at least one flat plate formed with an array of pressure chambers each communicating with a corresponding one of the nozzles, a second flat plate layer including at least one flat plate formed with a common ink chamber having a shape elongated in a direction of the array of the pressure chambers, an ink flow passage that communicates at one end with a corresponding one of the pressure chambers and at the other end with the common ink chamber, an ink supply passage connecting the common ink chamber and an ink supply source, a flat plate member in a shape of a thin film disposed between the first flat plate layer and the second flat plate layer, a filter formed at the flat plate member for filtering the ink, and a damper chamber formed by a flat plate fixed on the flat plate member on a side thereof opposed to the common ink chamber.

Description

technical field [0001] The present invention relates to the structure of an inkjet head that forms an image by ejecting minute droplets of ink onto a printing surface. Background technique [0002] In a general structure of a conventionally known inkjet head, a plurality of pressure chambers are formed, nozzles are provided in each pressure chamber, and each nozzle is connected to one end of a corresponding pressure chamber. [0003] In this configuration, ink from an ink supply source (for example, an ink tank) is first supplied to a common ink chamber, and then distributed to a plurality of pressure chambers from the common ink chamber. Then, the pressure is selectively applied to each pressure chamber by the actuator, and the ink is ejected from the nozzle corresponding to the pressure chamber to form an image on the printing surface. [0004] Such an inkjet head is generally formed by laminating and bonding a plurality of metal or other thin plates. The aforementioned ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/135B41J2/055B41J2/14B41J2/175
CPCB41J2/17563B41J2/055B41J2/14233B41J2002/14306B41J2002/14362B41J2002/14403B41J2202/03B41J2202/11
Inventor 广田淳岩尾直人坂井田惇夫
Owner BROTHER KOGYO KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com