CN102555448A

CN102555448A - Cleaning and maintenance device and ink jet printing equipment

Info

Publication number: CN102555448A
Application number: CN201010585585XA
Authority: CN
Inventors: 霍剑
Original assignee: Peking University Founder Group Co Ltd; Beijing Founder Electronics Co Ltd
Current assignee: Peking University Founder Group Co Ltd; Beijing Founder Electronics Co Ltd
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2012-07-11
Anticipated expiration: 2030-12-07
Also published as: CN102555448B

Abstract

The invention provides a cleaning and maintenance device which is mounted in ink jet printing equipment. The cleaning and maintenance device comprises an ink scraping device used for scraping ink on a spray nozzle of the ink jet printing equipment; and the ink scraping device comprises a scraper, a cutter holder and a cutter rack, wherein the scraper and the cutter holder are fixedly connected and the cutter holder and the cutter rack are detachably connected. The invention further provides the ink jet printing equipment which comprises the cleaning and maintenance device. The invention provides convenience in assembly and disassembly of the scraper and shortens manual maintenance time of the jet head maintenance device.

Description

Clean and maintenance device and ink-jet printing apparatus

Technical field

The present invention relates to print field, in particular to clean and maintenance device and ink-jet printing apparatus.

Background technology

The scheme of piezoelectric ink jet technology is that many small piezoelectric ceramics are placed near the print-head nozzle, through image information voltage is added to piezoelectric ceramics, makes piezoelectric ceramics stretching vibration distortion, with evenly ejection exactly of the ink in the China ink head.In the piezoelectric ink jet technology can be controlled at droplet volume very among a small circle, the piezoelectric ink jet nozzle was more prone to stopped up by foreign matter simultaneously, influences normal ink jet printing work.After the China ink head of piezoelectric ink jet printing equipment stops up, have to waste the great amount of time washer jet.

Fig. 1 shows a kind of ink-jet printing apparatus, comprising: printing host machine part 1, shower nozzle 2 and clean and maintenance device 3.Fig. 2 shows the partial enlarged drawing of Fig. 1.As shown in Figure 2, be provided with in the clean and maintenance device and scrape device for ink 4.The clean and maintenance device of shower nozzle is a kind of device that spray nozzle stops up that is used to clean; Its principle is to make a large amount of inks (quantity of ink when being several times as much as print job) through nozzle; The obstruction foreign matter that is bonded on the nozzle is washed away; Utilize the ink on scraper (sheet) the cleaning spray nozzle surface of scraping specific materials in the device for ink 4 then, for ensuing printing work is prepared.

In order to guarantee normally carrying out of high-quality printing work, each nozzle of shower nozzle should be in best condition always when work, therefore needs frequent each nozzle that uses this clean and maintenance device to clean shower nozzle.The inventor finds that prior art is that scraper directly is fixedly mounted on the knife rest through tens screws, and this makes that the scraper in the disassembly, cleaning attending device is cumbersome, therefore is difficult to often clean scraper.And the scraper cleaning does not totally make clean and maintenance device itself easily spray nozzle formed inverse contamination.

Summary of the invention

The present invention aims to provide a kind of clean and maintenance device and ink-jet printing apparatus, does not allow easily detachable problem with the scraper that solves in the existing ink-jet printing apparatus.

In an embodiment of the present invention, a kind of clean and maintenance device is provided, has been installed in the ink-jet printing apparatus; Comprise and scrape device for ink; Be used to strike off the ink on the nozzle of ink-jet printing apparatus, scrape device for ink and comprise: scraper, tool rest and knife rest, wherein; Scraper is to be fixedly connected with tool rest, and tool rest and knife rest are to removably connect.

In an embodiment of the present invention, a kind of ink-jet printing apparatus is provided, it comprises above-mentioned clean and maintenance device.

The clean and maintenance device and the ink-jet printing apparatus of the above embodiment of the present invention; Because in scraping device for ink, increased tool rest; So the scraper that has solved in the existing ink-jet printing apparatus is not allowed easily detachable problem; Greatly improve the dismounting convenience of scraper, shortened the manual maintenance time of blow head maintenance device.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 shows a kind of ink-jet printing apparatus;

Fig. 2 shows the partial enlarged drawing of Fig. 1;

Fig. 3 shows the transverse cross sectional figure of scraper according to the preferred embodiment of the invention;

Fig. 4 shows the transverse cross sectional figure of doctor blade device according to the preferred embodiment of the invention;

Fig. 5 shows the perspective cut away view of doctor blade device according to the preferred embodiment of the invention;

Fig. 6 shows the front view of the doctor blade device of Fig. 5;

Fig. 7 shows the cut away view of the AA line of Fig. 6;

Fig. 8 shows the top view of the doctor blade device of Fig. 5;

Fig. 9 shows the cut away view of the BB line of Fig. 8;

Figure 10 shows the partial enlarged drawing of Fig. 9.

The specific embodiment

Below with reference to accompanying drawing and combine embodiment to specify the present invention.

One embodiment of the present of invention provide a kind of clean and maintenance device; Be installed in the ink-jet printing apparatus, comprise and scrape device for ink, be used to strike off the ink on the nozzle of ink-jet printing apparatus; Scraping device for ink comprises: scraper, tool rest and knife rest; Wherein, scraper is to be fixedly connected with tool rest, and tool rest and knife rest are to removably connect.

In the prior art, scraper directly is fixedly mounted on the knife rest through tens screws, so remove pretty troublesome.And in the present embodiment; Increased tool rest; Dismounting between tool rest and the knife rest is more convenient, can scraper be disassembled from knife rest together with tool rest to clean, and this scraper that has solved in the existing ink-jet printing apparatus is not allowed easily detachable problem; Greatly improve the dismounting convenience of scraper, shortened the manual maintenance time of blow head maintenance device.

Preferably, scraper is connected to tool rest through screw.

Fig. 3 shows the transverse cross sectional figure of scraper according to the preferred embodiment of the invention, and Fig. 4 shows the transverse cross sectional figure of doctor blade device according to the preferred embodiment of the invention.Scraper has two the orthogonal installed surface A faces and the B face of longitudinal extension, form right angle groove; Tool rest has the installed surface that matches with the installed surface of scraper, form right angle portion; The right angle portion of tool rest is embedded in the trough with straight angle of scraper, is fixedly connected through screw.Among Fig. 3, A face B face is the mating surface of scraper, is used for fixing the datum level of scraper, and the right side is the blade insert that is used for the nozzle clearing face.

Fig. 5 shows the perspective cut away view of doctor blade device according to the preferred embodiment of the invention; Fig. 6 shows the front view of the doctor blade device of Fig. 5; Fig. 7 shows the cut away view of the AA line of Fig. 6; Fig. 8 shows the top view of the doctor blade device of Fig. 5; Fig. 9 shows the cut away view of the BB line of Fig. 8; Figure 10 shows the partial enlarged drawing of Fig. 9.Preferred embodiment among the figure adopts guide groove and double-wedge to compress combination, the operation that the mode of single-ended fixed doctor, this way have greatly been simplified dismounting and scraper is installed.Pass through this group view, the preferred embodiment of the present invention will be described in detail below.

The right angle portion that the vertical installed surface A of scraper 6 faces down and extends beyond tool rest 7; Tool rest 7 also has two orthogonal installed surfaces of longitudinal extension, and the installed surface that extends beyond with scraper 6 constitutes first groove that Open Side Down; Knife rest 8 comprises first one that is fixedly connected the clean and maintenance device, and second one of going out from first longitudinal extension, and second one upper surface has second groove that the opening of longitudinal extension makes progress; A side of second groove closely is embedded in first groove.First two ends that can be positioned at knife rest is convenient to be installed on the clean and maintenance device, and second groove is positioned at the centre of knife rest.The space of first groove that the B face of scraper 6 and tool rest 7 forms must be a bit larger tham the width of the side (being flange) that second groove of knife rest 8 embeds, and can increase the convenience of installation in the B of scraper 6 face and tool rest 7 corresponding inboard chamferings.

Preferably, tool rest 7 is fixedly attached to knife rest 8 through screw, and the screw that is used for fixing connection tool rest 7 and knife rest 8 is less than and is used for fixing the screw that is connected scraper 6 and tool rest 7.Therefore through tool rest 7, can fixed doctor 6, can dismantle easily again.

Preferably, tool rest 7 is fixedly attached to through screw on the top of side of embedding first groove of knife rest 8.

Preferably; Doctor blade device also comprises compact heap 9, and first one of its knife rest 8 that is connected towards the side of second groove, and the side towards second groove of compact heap 9 constitutes downward chamfering; The end of tool rest 7 is a wedge shape; Insert in the chamfering of compact heap 9, compact heap 9 is fixedly attached to the bottom of second groove through screw, small-sized elbow folder, fixed handle or Spring Card etc., and compresses the tapered end of tool rest 7.

Tool rest 7 terminal top edges are made smooth cambered surface, cooperate with knife rest 8 with the lower end mating surface, and the chamfering of compact heap 9 is monolateral wedge shape; Be pressed on the smooth cambered surface of tool rest 7 with lozenges during installation; When applying downward power for compact heap 9,, power is decomposed into the power of level and vertical direction through contacting of lozenges and smooth cambered surface; The power of horizontal direction guarantees that the combination of tool rest 7 and scraper 6 does not have displacement along the guide groove direction; By being pressed on the knife rest 8, thus, scraper 6 is completely fixed with the relative knife rest 8 of combination of tool rest 7 power of vertical direction with tool rest 7.

Compact heap 9 is fixed on the knife rest 8, adopts downward lozenges to compress the arc surface of 7 liang of ends of tool rest, and the free degree of restriction tool rest on paper feed vertical direction (both direction) when the dismounting scraper, only needs the tool rest that the dismounting compact heap can will be equipped with scraper to pull down.Specifically, be provided with after the compact heap, removing and installing of scraper operated as follows:

The disassembling section of scraper 6: when scraper 6 needs dismounting, only need unclamp the pressure of compact heap 9, take off compact heap 9, scraper 6 only needs to break away out a little along the guide groove on the knife rest 8 to one of compact heap 9 with the combination of tool rest 7, can upwards mention and lift down.

The fitting operation of scraper 6: when scraper 6 needs to install; With the sub-assembly of scraper 6 and tool rest 7 aim at guide groove to slip into away from a section of compact heap 9 top to the end after, put down this end of the outside, groove fully with knife rest 8 on flange combine; Compact heap 9 is fixing, and scraper 6 promptly is completely fixed.

Preferably, tool rest 7 adopts the material compatible with ink, promptly adopts ink-repellant material.

Embodiments of the invention also provide a kind of ink-jet printing apparatus, and it comprises above-mentioned clean and maintenance device.

Can find out that from above description clean and maintenance device of the above embodiments of the present invention and ink-jet printing apparatus have greatly improved the dismounting convenience of cleaning attending device, shorten the manual maintenance time of blow head maintenance device.

The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a clean and maintenance device is installed in the ink-jet printing apparatus, it is characterized in that; Comprise and scrape device for ink; Be used to strike off the ink on the nozzle of said ink-jet printing apparatus, the said device for ink of scraping comprises: scraper, tool rest and knife rest, wherein; Said scraper is to be fixedly connected with said tool rest, and said tool rest and said knife rest are to removably connect.

2. device according to claim 1 is characterized in that said scraper is connected to said tool rest through screw.

3. device according to claim 2 is characterized in that, said scraper has two orthogonal installed surfaces of longitudinal extension, form right angle groove; Said tool rest has the installed surface that matches with the installed surface of said scraper, form right angle portion; The right angle portion of said tool rest is embedded in the trough with straight angle of said scraper, is fixedly connected through screw.

4. device according to claim 3 is characterized in that, the vertical installed surface of said scraper extends beyond the right angle portion of said tool rest downwards; Said tool rest also has two orthogonal installed surfaces of longitudinal extension, and the installed surface that extends beyond with said scraper constitutes first groove that Open Side Down; Said knife rest comprises first one that is fixedly connected said clean and maintenance device, and second one of going out from said first longitudinal extension, and said second one upper surface has second groove that the opening of longitudinal extension makes progress; A side of said second groove closely is embedded in said first groove.

5. device according to claim 4 is characterized in that said tool rest is fixedly attached to said knife rest through screw, and the screw that is used for fixing said tool rest of connection and said knife rest is less than and is used for fixing the screw that is connected said scraper and said tool rest.

6. device according to claim 5 is characterized in that, said tool rest is fixedly attached to through screw on the top of side of said first groove of embedding of said knife rest.

7. device according to claim 4 is characterized in that, also comprises compact heap; First side of its said knife rest that is connected towards said second groove; The side towards said second groove of said compact heap constitutes downward chamfering, and the end of said tool rest is a wedge shape, inserts in the chamfering of said compact heap; Said compact heap is fixedly attached to the bottom of said second groove through screw, small-sized elbow folder, fixed handle or Spring Card, and compresses the tapered end of said tool rest.

8. device according to claim 1 is characterized in that, said tool rest adopts the material compatible with ink.

9. an ink-jet printing apparatus is characterized in that, comprises each described clean and maintenance device of claim 1-8.