A kind of 3d printing heads of anti-blockingTechnical field
The utility model is related to the 3d printing heads of 3d printing technique fields, specially a kind of anti-blocking.
Background technology
3D printing（3DP）That is one kind of rapid shaping technique, it is a kind of based on digital model file, with powderShape metal or plastics etc. can jointing material, come the technology of constructed object by way of successively printing, 3D printing is typically to useDigital technology file printing machine is often used for modeling come what is realized in fields such as mold manufacturing, industrial designs, rear gradually to useIn the direct manufacture of some products, there are the parts formed using the printing of this technology, the technology is in jewelry, footwear, workIndustry design, building, engineering and construction（AEC）, automobile, aerospace, dentistry and medical industries, education, GIS-Geographic Information System, soilWood engineering, gun and other field are all applied.
The consumptive material of current existing 3D printing nozzle is imported by stainless steel through hole, and importing consumptive material is equipped with as fixed seat is hollowStainless steel through hole, 3D printing consumptive material by this stainless steel through hole import after, melt agglutination after entering the nozzle of heatingObject, but at the same time, since heating position is there are heat conduction, cooling fin position expands heat transfer scope in addition, easily makesTube expansion is begun in stainless steel through hole into consumptive material, due to the through hole cavity of stainless steel, deformation coefficient is small, inner wall roughnessGreatly, consumptive material is easily caused to be blocked in the cavity of stainless steel through hole.
Common 3d printing heads can not effectively avoid situation about being blocked in cavity, be by being covered in chamber outer wall mostlyOne layer of cooling circle, the problem of preventing from blocking, however can not but eradicate such phenomenon by cooling processing, usually or can causeBlock and lead to not use, it is necessary to nozzle is dismantled, unimpeded, the series of steps such as cleaning solve, come for a long time,It can cause the service life of nozzle to reduce, add unnecessary waste, it is time-consuming and laborious, it is brought greatly not to userJust.
Utility model content
The purpose of this utility model is to provide a kind of 3d printing heads of anti-blocking, possess and can effectively avoid printing headThe advantages of cavity blocks solves the problems, such as that common 3d printing heads can not effectively avoid blocking in cavity.
To achieve the above object, the utility model provides following technical solution：A kind of 3d printing heads of anti-blocking, includingHousing is installed, feed pipe, the installation case top and corresponding charging inside pipe wall are fixedly connected at the top of the installation housingThe position of both sides is both provided with guide slope, and the position between the installation inner walls top and corresponding two guide slopes is openedEquipped with the first material hole, Anti-chock device, the charging inside pipe wall two are fixedly connected on rear side of the first material hole inner wallThe position on side and corresponding guide slope offers work nest, and the bottom of the work nest inner wall is provided with the first electromagnet, instituteThe position for stating guide slope the first electromagnet of correspondence offers spring by slot, and first electromagnet is close to the first material holeOne side is fixedly connected with link block, and the link block sequentially passes through work nest close to the one side of the first material hole and spring passes through slotAnd it extends to spring and is run through by being fixedly connected with contraction spring, the contraction spring inside slot close to one end of the first material holeSpring is by slot and extends to its external stability and is connected with the first scraper plate, the position above the feed pipe both sides and corresponding work nestIt puts and is fixedly connected with fixed plate, the bottom of the fixed plate is fixedly connected with electric telescopic rod, the bottom of the electric telescopic rodThe second electromagnet being used cooperatively with the first electromagnet is fixedly connected with, is fixedly connected at the top of the installation inner walls moltenMaterial pond is fixedly connected with temperature sensor on the left of the inner wall of the melt pond, is fixedly connected on the right side of the inner wall of the melt pondHeat block, the melt pond inner wall bottom offer the second material hole, and the melt bottom of pond portion corresponds to the position of the second material holeMaterial passing tube road is fixedly connected with, the right side opening of the installation inner walls is equipped with thermovent, and the installation inner walls bottom is openedEquipped with the 3rd material hole, the position that the installation housing bottom corresponds to the 3rd material hole is fixedly connected with nozzle；
The Anti-chock device includes fixed bin, after being fixedly connected on the first material hole inner wall on rear side of the fixed binSide, the both sides of the fixed bin inner wall have been fixedly connected with fixed block, ball grooves, the rolling are offered at the top of the fixed blockPearl slot is internally provided with the first ball, and the fixed bin is internally provided with swivel plate, the top of first ball and rotationThe bottom of flap contacts with each other, and the bottom of the swivel plate is fixedly connected with rotating bar, and the surface of the rotating bar bottom is setThere is the second scraper plate, the quantity of second scraper plate is four and the equidistant surface for being circumferentially positioned at rotating bar bottom, described theOne side of two scraper plates away from rotating bar is fixedly connected with scraping blade.
Preferably, first electromagnet includes the first electromagnetism box, and the bottom of the first electromagnetism box inner wall is fixedly connectedThere is the first iron core, the top of first iron core through the first electromagnetism box and is extended to outside it, inside the first electromagnetism boxThe first iron core surface be provided with the first electromagnetic coil.
Preferably, second electromagnet includes the second electromagnetism box, is fixedly connected at the top of the second electromagnetism box inner wallThere is the second iron core, the bottom of second iron core through the second electromagnetism box and is extended to outside it, inside the second electromagnetism boxThe second iron core surface be provided with the second electromagnetic coil.
Preferably, limited block is fixedly connected on rear side of first electromagnet, the feed pipe corresponds to the position of limited blockPut the limiting slot for offering and being used cooperatively with it.
Preferably, the second ball, top and the fixed bin inner wall of second ball are provided at the top of the swivel plateTop contact with each other.
Compared with prior art, the beneficial effects of the utility model are as follows：
1st, the utility model by set guide slope, Anti-chock device, the first electromagnet, contraction spring, the first scraper plate,Electric telescopic rod and the second electromagnet solve the problems, such as that common 3d printing heads can not effectively avoid blocking in cavity, lead toIt crosses and the jelly being sticked on charging inside pipe wall is struck off, can effectively eradicate the situation of cavity inner wall blocking, no longer needNozzle is dismantled, unimpeded, the series of steps such as cleaning solve, avoid long-term cleaning and nozzle caused to use the longevityLife reduces, and avoids unnecessary waste, time saving and energy saving, brings great convenience to user.
2nd, the utility model, which passes through, sets the first electromagnet and the second electromagnet, it may be convenient to contraction spring be made to drive theOne scraper plate carries out scraper processing to guide slope, and the jelly for effectively preventing fusing is sticked on guide slope and leads to notIt causes to block into melt pond, by setting limited block and limiting slot, the up and down motion track of the first electromagnet is limitedPosition, prevents its sideslip and causes the second electromagnet that can not be used cooperatively with it, cause failure of apparatus, by setting the second rollingPearl reduces the friction between swivel plate and fixed bin inner wall, swivel plate can be made more smooth when rotating, so as to more effectiveBlow the jelly being stained on the first material hole off.
Description of the drawings
Fig. 1 is the cross-sectional view of the structure of the utility model front view；
Fig. 2 is the cross-sectional view of the structure of the utility model Anti-chock device top view；
Fig. 3 is the cross-sectional view of the structure of the utility model the first electromagnet front view；
Fig. 4 is the cross-sectional view of the structure of the utility model the second electromagnet front view；
Fig. 5 is the partial enlarged view of A-A in the utility model Fig. 1；
Fig. 6 is the partial enlarged view of B-B in the utility model Fig. 1；
Fig. 7 is the partial enlarged view of C-C in the utility model Fig. 2.
In figure：1 installation housing, 2 feed pipes, 3 guide slopes, 4 first material holes, 5 Anti-chock devices, 501 fixed bins,502 fixed blocks, 503 ball grooves, 504 first balls, 505 swivel plates, 506 rotating bars, 507 second scraper plates, 508 scraping blades, 509Two balls, 6 work nests, 7 first electromagnet, 701 first electromagnetism boxes, 702 first iron cores, 703 first electromagnetic coils, 8 link blocks,9 contraction springs, 10 first scraper plates, 11 fixed plates, 12 electric telescopic rods, 13 second electromagnet, 1,301 second electromagnetism boxes, 1,302Two iron cores, 1,303 second electromagnetic coils, 14 melt ponds, 15 temperature sensors, 16 heat blocks, 17 material passing tube roads, 18 thermovents, 19Nozzle, 20 limited blocks, 21 limiting slots.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried outIt clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than wholeEmbodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative workAll other embodiments obtained shall fall within the protection scope of the present invention.
- 7 are please referred to Fig.1, a kind of 3d printing heads of anti-blocking, including installing housing 1, the top of installation housing 1 is fixedFeed pipe 2 is connected with, the position for installing 1 top of housing and corresponding 2 inner wall both sides of feed pipe is both provided with guide slope 3, installsPosition at the top of 1 inner wall of housing and between corresponding two guide slopes 3 offers the first material hole 4,4 inner wall of the first material holeRear side is fixedly connected with Anti-chock device 5, and the position on 2 inner wall both sides of feed pipe and corresponding guide slope 3 offers work nest6, the bottom of 6 inner wall of work nest is provided with the first electromagnet 7, and the first electromagnet 7 includes the first electromagnetism box 701, the first electromagnetism boxThe bottom of 701 inner walls is fixedly connected with the first iron core 702, and the top of the first iron core 702 through the first electromagnetism box 701 and extends toOutside it, 702 surface of the first iron core inside the first electromagnetism box 701 is provided with the first electromagnetic coil 703, the first electromagnet7 rear side is fixedly connected with limited block 20, and the position that feed pipe 2 corresponds to limited block 20 offers the limiting slot being used cooperatively with it21, the position that guide slope 3 corresponds to the first electromagnet 7 offers spring by slot, spring by slot be used for contraction spring 9 intoRow /V, contraction spring 9 move up and down in spring is by slot, and the first electromagnet 7 is consolidated close to the one side of the first material hole 4Surely link block 8 is connected with, link block 8 sequentially passes through work nest 6 and spring close to the one side of the first material hole 4 and passes through slot and extensionLed to spring by being fixedly connected with contraction spring 9, contraction spring 9 inside slot close to one end of the first material hole 4 through springIt crosses slot and extends to its external stability and be connected with the first scraper plate 10, the position of 2 both sides of feed pipe and 6 top of corresponding work nest is fixedFixed plate 11 is connected with, the bottom of fixed plate 11 is fixedly connected with electric telescopic rod 12, and the bottom of electric telescopic rod 12, which is fixed, to be connectedThe second electromagnet 13 being used cooperatively with the first electromagnet 7 is connected to, the second electromagnet 13 includes the second electromagnetism box 1301, the second electricityThe second iron core 1302 is fixedly connected at the top of 1301 inner wall of magnetic holder, the second electromagnetism box 1301 is run through in the bottom of the second iron core 1302And extend to outside it, 1302 surface of the second iron core inside the second electromagnetism box 1301 is provided with the second electromagnetic coil1303, it installs and is fixedly connected with melt pond 14 at the top of 1 inner wall of housing, temperature biography is fixedly connected on the left of 14 inner wall of melt pondSensor 15 is fixedly connected with heat block 16 on the right side of 14 inner wall of melt pond, and 14 inner wall bottom of melt pond offers the second material hole,The position that 14 bottom of melt pond corresponds to the second material hole is fixedly connected with material passing tube road 17, installs and is opened up on the right side of 1 inner wall of housingThere is thermovent 18,1 inner wall bottom of installation housing offers the 3rd material hole, and 1 bottom of installation housing corresponds to the position of the 3rd material holeIt puts and is fixedly connected with nozzle 19.
- 7 are please referred to Fig.1, Anti-chock device 5 includes fixed bin 501, and the rear side of fixed bin 501 is fixedly connected on first and leads toThe rear side of 4 inner wall of material mouth, the both sides of 501 inner wall of fixed bin have been fixedly connected with fixed block 502, and the top of fixed block 502 opens upThere are ball grooves 503, ball grooves 503 are internally provided with the first ball 504, and fixed bin 501 is internally provided with swivel plate 505,The top and the bottom of swivel plate 505 of first ball 504 contact with each other, and the top of swivel plate 505 is provided with the second ball 509,With contacting with each other at the top of 501 inner wall of fixed bin, the bottom of swivel plate 505 is fixedly connected with rotation at the top of second ball 509Bar 506, the surface of 506 bottom of rotating bar are provided with the second scraper plate 507, and the quantity of the second scraper plate 507 is four and equidistant ringAround the surface for being arranged on 506 bottom of rotating bar, the second one side of the scraper plate 507 away from rotating bar 506 is fixedly connected with scraping blade 508,By setting the first electromagnet 7 and the second electromagnet 13, it may be convenient to contraction spring 9 be made to drive the first scraper plate 10 oblique to guideSlope 3 carries out scraper processing, and the jelly for effectively preventing fusing is sticked on guide slope 3 and leads to not into melt pond 14It causes to block, by setting limited block 20 and limiting slot 21, /V has been carried out to the up and down motion track of the first electromagnet 7, preventOnly its sideslip and cause the second electromagnet 13 that can not be used cooperatively with it, cause failure of apparatus, by setting the second ball509, the friction between 501 inner wall of swivel plate 505 and fixed bin is reduced, swivel plate 505 can be made more smooth when rotating,So as to more effectively blow the jelly being stained on the first material hole 4 off, by setting guide slope 3, Anti-chock device 5, firstElectromagnet 7, contraction spring 9, the first scraper plate 10,12 and second electromagnet 13 of electric telescopic rod solve common 3d printing spraysHead can not effectively avoid the problem that blocking in cavity, by being struck off to the jelly being sticked on 2 inner wall of feed pipe, Ke YiyouThe situation eradicated cavity inner wall and blocked of effect, it is no longer necessary to be dismantled to nozzle, unimpeded, the series of steps such as cleaning solveCertainly, avoid long-term cleaning and cause the reduction of nozzle service life, avoid unnecessary waste, it is time saving and energy saving, to userIt brings great convenience.
In use, printing material enters feed pipe 2, first fall on guide slope 3, due to heating position, there are heat biographiesIt leads, easily leads to consumptive material and blocked in the cavity of stainless steel through hole, electric telescopic rod is stretched about 12 at this time, on the second electromagnet 13Lower movement causes the first electromagnet 7 that 9 and first scraper plate 10 of contraction spring is driven to carry out lifting scraper on guide slope 3, scrapesMaterial press the second scraper plate 507, the second scraper plate 507 rotates, drive scraping blade 508 scrape off the material being sticked on the first material hole 4,So as to so that all materials effectively avoid the phenomenon that printing head 19 blocks all into the progress of melt pond 14 melt.
In summary：The 3d printing heads of the anti-blocking, by setting guide slope 3, Anti-chock device 5, the first electromagnetismIron 7, contraction spring 9, the first scraper plate 10,12 and second electromagnet 13 of electric telescopic rod, solve common 3d printing heads withoutMethod effectively avoids the problem that blocking in cavity.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiiedChange, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.