Summary of the invention
For Problems existing in correlation technique, the object of the present invention is to provide a kind of print head cleaning device for 3D printer, at least to realize timing can effectively clearing up the foreign material on printhead in the print procedure of 3D printer.
For achieving the above object, the invention provides a kind of print head cleaning device for 3D printer, the rotating shaft comprising service sink and be rotatably supported in service sink, wherein, rotating shaft has: rotate about it axis evenly and be arranged on the rain brush plate of rotating shaft outside equally spacedly.
According to the present invention, the two ends of rotating shaft are supported between the opposing sidewalls of service sink, wherein, wherein one end of rotating shaft extends through one of opposing sidewalls, the part being positioned at the outside of one of opposing sidewalls of rotating shaft is provided with magnetic locating part, wherein, outside at service sink, around rotating shaft pivot center evenly and be provided with limit sensors equally spacedly, wherein, magnetic locating part and limit sensors selectively couple.
According to the present invention, at the rainy brush board axle of the outer setting of rotating shaft, all rain brush plates are all connected to rain brush plate axle, wherein, and rain brush plate axle and rotating shaft coaxle synchronous rotary.
According to the present invention, rain brush plate axle is connected with three rain brush plates, and service sink outer setting has three limit sensors, wherein, magnetic locating part is positioned at the institute of wherein a slice of three rain brush plates in the planes, wherein, the rain brush plate of above-mentioned wherein a slice has: perpendicular to the rotation stop position at the bottom of the pond of service sink.
According to the present invention, take rotating shaft as axle center, in three rain brush plates, between every adjacent two panels rain brush plate, angle is 120 °.
According to the present invention, be also provided with liquid level gauge and lower liquid level gauge in service sink, wherein, at the bottom of the pond of service sink, the position of upper liquid level gauge is higher than the position of lower liquid level gauge.
According to the present invention, be also provided with filter screen in service sink, filter screen to be laid in service sink and between upper liquid level gauge and lower liquid level gauge.
According to the present invention, service sink outside is also provided with driving cylinder, drives the tracheae of cylinder to be connected with the part being positioned at the outside of one of above-mentioned opposing sidewalls of rotating shaft.
According to the present invention, cleaning agent is installed bottom service sink and adds pipe.
According to the present invention, all rain brush plates are rubber rain brush plate.
Advantageous Effects of the present invention is:
In the present invention, because print head cleaning device is configured to rotary multiple rain brush plate cleaning mechanism, therefore this can save the installing space of equipment effectively.Further, the process moderate rain brush board rotated at rotating shaft turns in service sink the cleaning that would have been completed itself, eliminates rain brush plate and enters in service sink the time of carrying out cleaning itself, then solve the problem that print head cleaning efficiency is lower.
Meanwhile, adopt print head cleaning device of the present invention, in the print procedure of 3D printer, timing can effectively clear up the foreign material on printhead.
In addition, rotating shaft is rotated by air cylinder driven, and rotating shaft is positioned by magnetic locating part, solves motor in prior art and drives the problem taking up room and cause electrical fault after contact liq.
And the present invention adopts the cleaning mechanism of rubber rain brush plate mode, can ensure to clean out disposable for the impurity of whole for printhead plane, solve repeatedly to scrape and cause shower nozzle wear and tear and clear up sordid problem.
Detailed description of the invention
Referring now to Fig. 1 to Fig. 7, present invention is described.
Composition graphs 1 to Fig. 6, what illustrate is the print head cleaning device for 3D printer of the present invention, and this print head cleaning device comprises service sink 1 and rotating shaft 5, and wherein, rotating shaft 5 is rotatably supported in service sink 1.Further, rotating shaft 5 have around this rotating shaft 5 pivot center evenly and be arranged on the rain brush plate 7 of rotating shaft 5 outside equally spacedly, as illustrated best in Fig. 4.Wherein, should be understood that, in reality of the present invention uses, service sink 1 is for depositing cleaning agent, and the selection of cleaning agent can be determined according to concrete service condition, and the present invention is not limited to this.
Further, in a preferred embodiment, the two ends of rotating shaft 5 are supported between the two lateral walls of service sink 1, as shown in Figure 1.And wherein one end of rotating shaft 5 extends through one of opposing sidewalls of service sink 1, that is, one end of rotating shaft 5 passes the wherein side sidewall of service sink 1.Further, the part being positioned at the outside of one of the opposing sidewalls of service sink 1 of rotating shaft 5 is provided with magnetic locating part 8.In other words, the part being positioned at the rotating shaft 5 of the sidewall outside of service sink 1 is provided with magnetic locating part 8.Correspond ground, in a preferred embodiment, outside at service sink 1, around rotating shaft 5 pivot center evenly and be provided with limit sensors 11,12,13 equally spacedly, as shown in Figure 2.Further, magnetic locating part 8 and limit sensors 11,12,13 selectively couple.
Specifically, magnetic locating part 8 can mutually couple with any one in limit sensors 11,12,13 thus carry out spacing to magnetic locating part 8.Because magnetic locating part 8 is limited, make connected rotating shaft 5 limited further, thus rotating shaft 5 is stopped the rotation and keeps motionless.As shown in Figure 2, in an embodiment of invention, limit sensors 11,12,13 can be expressed as high locating part 11, middle locating part 12 and low locating part 13, and three is equivalent to height at the bottom of the pond of service sink 1 and successively decreases and arrange around rotating shaft 5.
Be to be understood that, " coupling " as referred to herein can be any type of connection, such as magnetic connection, electrical connection, mechanical connection etc., this can determine according to concrete service condition, only need make can carry out spacing to magnetic locating part 8 by limit sensors 11,12,13, the present invention is not limited to this.
In a preferred embodiment, at the rainy brush board axle 6 of the outer setting of rotating shaft 5, all rain brush plates 7 are all connected to rain brush plate axle 6, and rain brush plate axle 6 and rotating shaft 5 coaxial synchronous rotate.
More specifically, in the embodiment of as shown in the figure, rain brush plate axle 6 can be connected with three rain brush plates 7, and service sink 1 outer setting has three above-mentioned limit sensors 11,12,13.Wherein, magnetic locating part 8 is positioned at the end of rotating shaft 5 side, and magnetic locating part 8 is positioned at the institute of wherein a slice of these three rain brush plates 7 in the planes, in other words, the bearing of trend of this magnetic locating part 8 can be identical with the direction of this wherein a slice in three rain brush plates 7, the rain brush plate 7 of above-mentioned wherein a slice can have thus: perpendicular to the rotation stop position at the bottom of the pond of service sink 1, as shown in Figure 4.That is, by as above set-up mode, wherein a slice rain brush plate 7 can be can to make this: under the magnetic locating part 8 coplanar with it and the effect of limit sensors 11 that couples with magnetic locating part 8, be in the rotation stop position at the bottom of perpendicular to the pond of service sink 1.In this position, this sheet rain brush plate 7 can carry out print head cleaning operation, and this will be described in detail as follows.In other words, magnetic locating part 8 is arranged on the side of the termination of rotating shaft 5, is detected by three limit sensors 11,12,13, that is, be exactly magnetic locating part 8 with limit sensors 11,12,13 with the use of; Rain brush plate 7 has three and is installed on rain brush plate axle 6, angle often between adjacent two rain brush plates 7 is 120 degree, when one of them rain brush plate 7 and printhead 14 to be cleaned (namely, shower nozzle installed surface 15) vertical time, two other rain brush plate 7 can not be straight with the pond dolly of service sink 1.
In a preferred embodiment, as shown in Figure 4, with rotating shaft 5 for axle center, in above-mentioned three rain brush plates 7, between every adjacent two panels rain brush plate 7, angle is 120 °.Correspond ground, above-mentioned three limit sensors 11,12,13 also can be arranged to often between adjacent two limit sensors angle be 120 °.Certainly be to be understood that, the present invention also can be provided with more or fewer rain brush plate 7, and along with the change of rain brush plate 7 quantity, angle between every adjacent two panels rain brush plate 7 also can change, the quantity of limit sensors also can change thereupon simultaneously, this all can determine according to concrete service condition, and the present invention is not limited to this.
In an alternate embodiment of the invention, liquid level gauge 3 and lower liquid level gauge 4 can also be provided with in service sink 1.Wherein, at the bottom of the pond relative to service sink 1, the position of upper liquid level gauge 3 is higher than the position of lower liquid level gauge 4.Specifically, upper liquid level gauge 3 can be used for instruction cleaning agent and injects shutheight, when also arriving upper liquid level gauge 3 position after cleaning agent injects, cleaning agent can be made after upper liquid level gauge 3 senses cleaning agent to stop injecting; And for lower liquid level gauge 4, before print head cleaning device is started working, if cleaning dosage exists cleaning agent not or not in service sink 1, then play liquid level gauge 4 can carry out sensing and make cleaning agent start to inject.Should be appreciated that liquid level gauge 3 and lower liquid level gauge 4 can be any suitable liquid level gauge, can carry out indicating the liquid level gauge of liquid level all can be applied in the present invention.
In addition, in a preferred embodiment, be also provided with filter screen 2 in service sink 1, filter screen 2 to be laid in service sink 1 and between upper liquid level gauge 3 and lower liquid level gauge 4.Filter screen 2 can be used for filtering the impurity of the cleaning agent injecting service sink 1.
In addition, in one embodiment, the outside of service sink 1 can also be provided with driving cylinder, drives the tracheae 9 of cylinder to be connected with the part being positioned at the outside of one of the opposing sidewalls of service sink 1 of rotating shaft 5.In a preferred embodiment, cleaning agent is installed bottom service sink 1 and adds pipe 10.In an alternate embodiment of the invention, all rain brush plates 7 can be rubber rain brush plate.Certainly should be appreciated that other suitable rain brush plate materials also can be applied in the present invention, this can determine according to concrete service condition, and the present invention is not limited to this.
Existing composition graphs 1 to Fig. 7 is described concrete use of the present invention.
During printer work, first by cleaning agent injection pump, new cleaning agent being added pipe 10 by cleaning agent is injected in service sink 1, impurity in cleaning agent is filtered out by filter screen 2, cleaning agent enters into below rain brush plate axle 6 by filter screen 2, in arrival after liquid level gauge 3, cleaning agent injection pump quits work, reinforced complete in service sink 1.
After printhead 14 is started working, according to setting program, every ink-jet several times, can get back in cleaning device and clean printhead, when printhead 14 arrives cleaning device, rotating shaft 5 starts to rotate, one of them the rain brush plate 7 be arranged on rain brush plate axle 6 is gone to printhead plane (namely, shower nozzle installed surface 15) vertical position (is also, this rain brush plate 7 as above is perpendicular to the rotation stop position at the bottom of the pond of service sink 1, and two other rain brush plate 7 is all 60 degree of angles with the bottom vertical direction of service sink 1).Now, printhead starts to move back and forth once along the horizontal direction of arrow shown in Fig. 7, and rain brush plate 7 can remove to scrape with the height exceeding printing head plane 1-2mm the impurity be bonded on printing head.
After a rain brush plate 7 completes and scrapes, along with rotating shaft 5 rotates, this scraper plate is brought in the cleaning fluid in service sink 1, and being bonded at impurity on scraper plate can by cleaning fluid wash clean, immediately, second rain brush plate 7 on rain brush plate axle 6 rotates again to the position with printhead plane orthogonal, carry out second time to scrape, equally with first time can enter cleaning fluid cleaning impurity again after scraping, simultaneously, 3rd scraper plate can scrape one time to printhead again, forms with this process circulating and scrape/self clean.
Magnetic locating part 8 is fixed on turning cylinder 5, when turning cylinder 5 rotates, magnetic locating part 8 also can and then rotate, thus determine the position of the rain brush plate 7 on rotating shaft 5, system (by limit sensors 11,12,13) often detects the signal of magnetic locating part 8 once, and the rotation of the axle 5 that will stop the rotation, guarantees that printhead scrapes, circulation like this is carried out, and reaches the object of cleaning printhead.
As known from the above, print head cleaning device of the present invention, essentially provides a kind of micropore plane Removal Technology of the printhead for such as 3D printer.It can carry out spray liquid operation for injection diameter at the 3D printer port of printer of tens microns, when clearing up the surface impurity of printhead, not only micro mist to be removed clean, and to ensure that these micro mists can not enter spray orifice in scale removal process, the invention of this device, solves this technical barrier of micropore plane cleaning.
In sum, in the present invention, because print head cleaning device is configured to rotary multiple rain brush plate 7 cleaning mechanism, therefore this can save the installing space of equipment effectively.Further, the process moderate rain brush board 7 rotated at rotating shaft 5 turns in service sink 1 cleaning that would have been completed itself, eliminates rain brush plate 7 and enters in service sink 1 time of carrying out cleaning itself, then solve the problem that print head cleaning efficiency is lower.
Meanwhile, adopt print head cleaning device of the present invention, in the print procedure of 3D printer, timing can effectively clear up the foreign material on printhead.
In addition, rotating shaft 5 is rotated by air cylinder driven, and rotating shaft 5 is positioned by magnetic locating part 8, solves motor in prior art and drives the problem taking up room and cause electrical fault after contact liq.
And the present invention adopts the cleaning mechanism of rubber rain brush plate mode, can ensure to clean out disposable for the impurity of whole for printhead plane, solve repeatedly to scrape and cause shower nozzle wear and tear and clear up sordid problem.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.