CN105922579A - 3d printer spray head structure - Google Patents
3d printer spray head structure Download PDFInfo
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- CN105922579A CN105922579A CN201610262300.6A CN201610262300A CN105922579A CN 105922579 A CN105922579 A CN 105922579A CN 201610262300 A CN201610262300 A CN 201610262300A CN 105922579 A CN105922579 A CN 105922579A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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Abstract
The invention relates to a printer, in particular to a 3D printer spray head structure. The 3D printer spray head structure comprises a spray head body, wherein a spray outlet and an inlet are formed in the spray head body; the spray head body is in a long strip shape; the spray outlet is a gap extending in the length direction of the spray head body; the spray head body is provided with two scraping knives; an expansion slot is formed between the two scraping knives; and the outlet end of the spray outlet is located in the expansion slot. The 3D printer spray head structure with a double way material spraying function is provided by the invention, and the problem that an existing 3D printer spray head can be used for conducting one way material spraying only is solved.
Description
Technical field
The present invention relates to printer, particularly relate to a kind of 3D printer head structure.
Background technology
3D printer is the equipment that a kind of cumulative formula forming technique based on discrete dynamics models principle carries out printing.It is by modern means such as computer, laser, precision drive and numerical controls, computer-aided design (CAD) and computer aided manufacturing (CAM) are integrated in one, according to the threedimensional model constructed on computers, can the most directly manufacture product model or sample.
The mode of 3D printer molding has multiple, one of which is with photosensitive resin as raw material, the three-dimensional part model that will design on computer, surface triangulation processes, store into stl file form, it is carried out layered shaping, obtains the two-dimensional silhouette information of each layer cross section, then control DLP projector by computer and make resin corresponding region make its Layer by layer solidification molding two-dimensional silhouette image projection to resin bed.After solidifying when one layer, workbench moves down the distance of a thickness, so that being coated with, at the resin surface being originally cured, the liquid photosensitive resin that last layer is new, resin liquid level bigger for viscosity is struck off by scraper, then the scanning solidification work of the coating of new a layer is carried out, so repeat, until whole product manufactures complete.
Chinese Patent Application No. be 2014100271982, entitled " a kind of 3D printer based on DLP principle " i.e. disclose the 3D printer of this kind of structure.Shower nozzle is parts of 3D printer, is used for exporting light-cured resin in Storage Box.Existing 3D printer head has the disadvantage that and is merely able to realize one way material spray.
Summary of the invention
The invention provides a kind of 3D printer head structure that can carry out round trip material spray, solve the problem that existing 3D printer head is merely able to carry out one way material spray.
More than technical problem is that and solved by following technical proposal: a kind of 3D printer head structure, including head body, described head body is provided with spout and import, described head body is strip, described spout is the gap extended along head body length direction, described head body is provided with two panels scraper, forms capacity expansion tank between described two panels scraper, and the port of export of described spout is positioned at described capacity expansion tank.During use, the present invention is arranged on Storage Box in the way of head body length direction moves being perpendicular to, when the present invention moves back and forth, (round trip) all can spray scraper while resin is filled into Storage Box, resin is discharged and can immediately be struck off by the upper surface of resin, thus avoid resin bed the most exposed affected by ultraviolet in atmosphere to produce solidify and problem that the mobility that causes declines.Orifice design is that gap structure can prevent the resin local excessive in shower nozzle is sprayed onto Storage Box from piling up, it is simple to is struck off by resin surface, can realize the making of thinner resin bed.Forming capacity expansion tank between scraper, impulsive force during resin ejection is little, will not produce ejection power and the resin that causes squeezes through the phenomenon of scraper so that resin can reliably strike off.Head body has two half-unit to constitute and inside is all located between two half-unit with the region that resin contacts, and it is convenient to make when shower nozzle, cleaning shower nozzle inner space and spout.
As preferably, being provided with cushion chamber inside described shower nozzle, described cushion chamber is arranged on the joint face of two half-unit, and the inner of described import is positioned at below the middle part of cushion chamber, and the entrance point of described spout is positioned at the top of cushion chamber.During use, the resin in storage bin enters cushion chamber through import, the most buffered chamber flows to spout, be finally sprayed in Storage Box.Being prevented from entering the resin of shower nozzle directly from just spraying the spout of import, the concordance of resin flow velocity when each spout spray is good, prevents the resin in Storage Box from producing local accumulation, raising spraying effect.
As preferably, the outer end of described import is provided with inlet valve, described inlet valve includes the valve body being provided with runner, it is positioned at the valve seat being provided with valve hole of the runner of valve body, the spool coordinated with valve seat and folding valve system, described spool is provided with the flow-control section of the aperture area controlling described valve hole, described flow-control section is taper, the taper side face of described flow-control section is provided with conical external screw thread, described valve hole is bellmouth, described bellmouth is provided with the conical internal thread coordinated with described conical external screw thread, described folding valve system realizes the folding of spool with the axis of flow-control section for axle rotates for driving spool, described spool can at least rotate a circle, the port of export of described runner is docking together with the outer end of described import.By by spool and seat design be tapered thread coordinate carry out aperture area control with the control realizing flow, it is possible to make valveKV Can conveniently realize and fall below 0.003 thus realizeThe control of tiny flow quantity, to improve printing precision.
As preferably, described folding valve system includes that exporting power makes the drive shaft of described valve core rotation to described spool, it is connected to the holding rod of drive shaft, motor and powershift mechanism, described motor includes motor casing and motor shaft, described motor casing is fixed together with described holding rod, described drive shaft is connected to one end of described motor shaft, described powershift mechanism includes the switch starting described motor, drive the pressing lever of described switch, the insertion spring that the latch being slidably connected in holding rod linked together with holding rod by motor shaft and driving latch are inserted in motor shaft, described latch is between described switch and pressing lever, described latch is provided with dodges hole, described hole of dodging is provided with the driving inclined-plane departing from motor shaft to drive described latch with the cooperation of described pressing lever.The technical program can either be passed through manual rotation's drive shaft, also be able to drive drive shaft turns by motor.When driving drive shaft turns by motor, pressing pressing lever, while pressing lever translates towards switch, pressing drives inclined-plane that latch translation is departed from motor shaft, pressing lever move to through dodge hole be pressed into switch or be switched on and off sense time (then sensing if inductive switch) time, latch completely from motor shaft abjection make holding rod with motor shaft disconnect and motor started, electric motor starting rear drive drive shaft turns and realize being threadedly coupled in screwed hole thread segment.When extracting pressing lever, switch off and motor is stopped, owing to pressing lever loses the Intercepting effects to latch, under the effect inserting spring, latch is inserted in motor shaft again, motor shaft can be driven to rotate when now rotating holding rod, motor shaft drives drive shaft turns, namely can carry out manual rotation.
As preferably, described motor is provided with binding post, described binding post includes insulator and is arranged at the wiring Copper Foil of insulator, described wiring Copper Foil is electrically connected with the coil of described motor, described wiring Copper Foil is provided with the wiring hole penetrated in described insulator, described wiring hole slidably connects sleeve, described sleeve includes the conductive segment together with being connected to of the insulating segment along sleeve axial distribution with wiring Copper Foil, be provided with in described insulator air cavity that the heat produced by wiring Copper Foil carries out heating and by the gas expansion in air cavity be driven for the overload response cylinder driving conductive segment to stagger with described wiring Copper Foil.During to motor wiring, power line is inserted and sleeve realizes with the electrical connection of sleeve, be that conductive segment links together with wiring Copper Foil and conducts during normal condition.Circuit can produce temperature rise when the load, gas in air cavity can produce expansion, overload response cylinder generation action during the gas expansion of air cavity and drive sleeve to slide in wiring hole, response air cylinder driven of then transshipping when temperature rise to design temperature slides into conductive segment to sleeve and staggers with wiring Copper Foil, thus realizes power-off；When after Failure elimination, temperature can decline, temperature declines the contraction of gas in then air cavity, the result shunk is that when temperature returns to normal value, then conductive segment links together with wiring Copper Foil again thus realizes automatically reseting so that sleeve slides towards the direction that same temperature rise phase is anti-in wiring hole.
As preferably, described overload response cylinder includes overload response cylinder block and overload response cylinder piston, described overload response cylinder block is divided into closing chamber and open cavity by described overload response cylinder piston, described closing chamber connects with described air cavity, and described overload response cylinder piston is linked together with described sleeve by connecting rod.Simple in construction.Easy to make.
As preferably, the axis of described overload response cylinder piston is parallel with the axis of described adapter sleeve.Reliability when overload response air cylinder driven sleeve moves can be improved and improve structural compactness further.
As preferably, described wiring hole is vertically extending, and described wiring Copper Foil is positioned at the lower end of described wiring hole, and described insulating segment is positioned at the lower section of described conductive segment, and described insulating segment is sealed connected together with described wiring hole, is filled with conductive liquid in described wiring hole.It can be avoided that repeatedly action produces sparking when producing electrical contact bad phenomenon after producing abrasion and prevent action.
As preferably, described insulating segment is provided with the exterior seal ring being sealed connected together with wiring hole by insulating segment and is used for the inner seal ring being sealed connected together with power line by insulating segment.Can both ensure that sleeve is reliably sealed connected together with wiring Copper Foil, and resistance when can reduce mobile.
As preferably, the inner peripheral surface of described insulating segment is provided with support ball.Resistance when can reduce mobile further, to improve sensitivity during dynamic overload response.
As preferably, the inner peripheral surface of described conductive segment is provided with the inner support shell fragment that radially-inwardly arches upward along conductive segment, outer peripheral face is provided with the outer support shell fragment radially outward arched upward along conductive segment.Can either improve reliability during relay contacts, resistance when can reduce mobile again is to improve response sensitivity.
As preferably, the entrance point of described import is provided with resin transfer pipe, described resin transfer pipe is provided with fillter section, described fillter section includes the shell being provided with discharge opening, one-level filter plate it is provided with in described shell, two grades of filter plates it are additionally provided with in the space that described shell and one-level filter plate are surrounded, the space that described discharge opening is positioned at described two grades of filter plates and shell is surrounded, forming unhurried current chamber between described two grades of filter plates and one-level filter plate, the aperture area of the filter opening of described one-level filter plate is more than the aperture area of the filter opening of two grades of filter plates.Can filter out through the particulate matter in resin, prevent from blocking spout.Two grades of filter plates are also set up, it is possible to the filter effect that ensured and be not easy to produce frequent jams phenomenon while one-level filter plate is set.
As preferably, described one-level filter plate and described shell are connected together in the way of rotating dismounting, described shell is provided with installation step, described two grades of filter plates are provided with support shirt rim, described two grades of filter plates are by some spring supportings on described installation step, and described one-level filter plate is provided with some insulated columns being pressed against on described two grades of filter plates；When described spring is in free state, described two grades of filter plates stretch out described shell.Rotary clamping connects, and can either prevent the displacement of one-level filter plate from losing the interception function to foreign material, make again convenience during installing/dismounting good.When taking off one-level filter plate, two grades of filter plates can auto-extending shell under the action of the spring.Convenience when taking out two grades of filter plates is good, and the foreign material not easily leaded on two grades of filter plates when taking out two grades of filter plates are scattering in shell.
As preferably, described insulated column, along the outer peripheral edge being circumferentially distributed in two grades of filter plates of two grades of filter plates, forms filter mesh between adjacent insulated column, and described support shirt rim is with forming auxiliary filter opening between described installation step.The filter area of two grades of filter plates can be improved and reduce the flow resistance that two grades of filter plates produce.When this structure causes resin to change the impulsive force of two grades of filter plates in resin velocity change, there is bradyseism effect such that it is able to delay the damage of two grades of filter plates and resin change in flow and the noise that produces.
As preferably, described installation step is provided with the annular stillpot circumferentially extending along two grades of filter plates being positioned at described auxiliary filter opening entrance point.Granule can be effectively prevented flow out through auxiliary filter opening and carry out Storage Box.
As preferably, the centre of described two grades of filter plates raises up and forms boss, periphery raises up formation bulge loop, forms cannelure between described bulge loop and boss, and the filter opening of described two grades of filter plates is provided only on described cannelure and bulge loop.Granule can be prevented to be scattering into the outside of two grades of filter plates by the powder collection under being intercepted by two grades of filter plates together.Granule is scattering into outside two grades of filter plates and is then not easy to clean out and easily produce clogging.Centre arranges boss and boss is not provided with mesh, it is possible to play guide functions so that resin spreads out in cannelure with shallower speed.
The present invention has an advantage that and can carry out round trip material spray；Can synchronize while material spray to strike off；It is convenient to carry out during internal washing.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is the cross-sectional schematic of fillter section.
Fig. 3 is the schematic diagram of the folding valve system in the embodiment of the present invention two.
Fig. 4 is the close-up schematic view at the A of Fig. 3.
Fig. 5 is the enlarged diagram of binding post.
Fig. 6 is binding post schematic diagram when linking together with power line.
nullIn figure: powershift mechanism 2、Switch 21、Pressing lever 22、Latch 23、Dodge hole 231、Drive inclined-plane 232、Insert spring 24、Locking hole 25、Binding post 3、Wiring Copper Foil 31、Wiring hole 32、Air-vent 321、Insulator 33、Sleeve 34、Insulating segment 341、Conductive segment 342、Exterior seal ring 343、Inner seal ring 344、Support ball 345、Inner support shell fragment 346、Outer support shell fragment 347、Air cavity 35、Overload response cylinder 36、Overload response cylinder block 361、Close chamber 3611、Open cavity 3612、Pore 3613、Overload response cylinder piston 362、Connecting rod 363、Air flue 37、Power line 38、Folding valve system 4、Drive shaft 41、Holding rod 42、Fillter section 5、Shell 51、Discharge opening 511、Installation step 512、Insulated column 513、One-level filter plate 52、One-level filter plate portion filter opening 521、Two grades of filter plates 53、Support shirt rim 531、Boss 532、Bulge loop 533、Cannelure 534、Two grades of filter plate portion mesh 535、Spring 536、Opening of sieve 54、Stillpot 55、Auxiliary filter opening 56、Head body 6、Left half of 611、Right-hand part 612、Import 613、Cushion chamber 614、Spout 615、Scraper 62、Capacity expansion tank 621、Inlet valve 7、Valve body 71、Spool 72、Flow-control section 721、Conical external screw thread 722、Runner 73、Valve seat 74、Valve hole 75、Motor 8、Motor casing 81、Motor shaft 82、Reductor 83、Unhurried current chamber S.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Seeing Fig. 1, a kind of 3D printer head structure, including head body 6, inlet valve 7 and resin transfer pipe 1.
Head body 6 is to be present in the strip that paper direction extends.Head body 6 is made up of the two half-unit being detachably connected the most left half of 611 and right-hand part 612.Head body 6 is provided with import 613, cushion chamber 614 and spout 615.Cushion chamber 614 and spout 615 be arranged on left half of 611 and right-hand part 612 joint face on.Spout 615 is along the oppositely extending gap of the length of head body 6.The inner of import 613 is positioned at below the middle part of cushion chamber 614.The lower surface of head body 6 is provided with two panels scraper 62.Two panels scraper 62 is integrated mechanism with left half of 611 and right-hand part 612 respectively.Two panels scraper 62 is distributed in the left and right sides of spout 615 in left-right direction.Capacity expansion tank 621 is formed between two panels scraper 62.The port of export of spout 615 is positioned at capacity expansion tank 621.
Inlet valve 7 includes valve body 71, spool 72 and folding valve system 4.Valve body 71 is provided with runner 73.The port of export of runner 73 is docking together with the outer end of import 613.Valve seat 74 it is sealedly connected with in runner 73.Valve seat 74 is provided with valve hole 75.Runner 73 is positioned at the part of valve seat 74 both sides and is only connected by valve hole 75.Valve hole 75 is bellmouth.The taper side face in valve hole 75 is provided with conical internal thread.Spool 72 rotary seal is connected to valve body 71.Spool 72 can rotate more than at least 1 circle, for can rotate 21 circles in the present embodiment.The lower end of spool 72 is provided with flow-control section 721.Flow-control section 721 is located in valve hole 75.Flow-control section 721 is taper.The taper side face of flow-control section 721 is provided with conical external screw thread 722.Conical external screw thread 722 is threaded togather with the conical internal thread in valve hole 75.Folding valve system 4 includes drive shaft 41 and holding rod 42.One end of drive shaft 41 is coaxially connected together with spool 72, the other end is vertically connected on together with holding rod 42.It is rotatably connected with valve body 71 in the middle part of drive shaft 41.
During folding inlet valve 7, by grip holding rod 42 go rotate drive shaft 41 rotates continuously, drive shaft 41 drives spool 72 to rotate continuously, spool 72 makes the cooperation elasticity of conical external screw thread 722 and conical internal thread produce change when rotating, produce the aperture area that result the is valve hole 75 generation change of change thus realize the change of flow.
Resin transfer pipe 1 is docked at the arrival end of runner 73.Resin transfer pipe 1 is provided with fillter section 5.Fillter section 5 is threaded togather with resin transfer pipe 1.Fillter section 5 includes shell 51.
See Fig. 2, in shell 51, be provided with one-level filter plate 52.One-level filter plate 52 is circular.One-level filter plate 52 is provided with one-level filter plate portion filter opening 521.Shell 51 and one-level filter plate 52 are connected together in the way of rotating dismounting, and time i.e. by rotating to setting position, one-level filter plate 52 can take out from shell 51, otherwise can block and can not take.Discharge opening 511 and installation step 512 it is provided with in shell 51.
Two grades of filter plates 53 it are provided with in the space that shell 51 and one-level filter plate 52 are surrounded.Unhurried current chamber S is formed between two grades of filter plates 4 and one-level filter plate 1.The space that discharge opening 511 is positioned at two grades of filter plates 53 and shell 51 is surrounded.Two grades of filter plates 53 are circular.Two grades of filter plates 53 are provided with support shirt rim 531.The centre of two grades of filter plates 53 raises up and forms boss 532.The periphery of two grades of filter plates 53 raises up and forms bulge loop 533.Cannelure 534 is formed between boss 532 and bulge loop 533.On cannelure 534 and bulge loop 533, only it is provided with two grades of filter plate portion mesh 535.The aperture area of two grades of filter plate portion mesh 535 is less than the aperture area of one-level filter plate portion filter opening 521.
Two grades of filter plates 53 are supported on installation step 512 by some springs 536.One-level filter plate 52 is provided with some insulated columns 513 being pressed against on two grades of filter plates 53.Insulated column 513 is along the outer peripheral edge being circumferentially distributed in two grades of filter plates of two grades of filter plates 53.Filter mesh 54 is formed between adjacent insulated column 513.Support the shirt rim 531 separated formation auxiliary filter opening 56 with installation step 512.Installation step 512 is provided with the annular stillpot 55 circumferentially extending along two grades of filter plates being positioned at auxiliary filter opening entrance point.
When taking off one-level filter plate 52 and lose the pressing effect to two grades of filter plates 53, spring 536 affranchises state and by the jacking of two grades of filter plates 53 to stretching out shell 51.
Seeing Fig. 1, during use, light-cured resin flows out from spout 615 after resin transfer pipe 1, inlet valve 7, import 613 and cushion chamber 614.The present invention drives right and left alternating translational to the left along figure by drive mechanism so that the light-cured resin of ejection is synchronized to strike off by scraper 62.
Embodiment two, with the difference of embodiment one be:
Seeing Fig. 3, folding valve system 4 also includes motor 8 and powershift mechanism 2.Motor 8 includes motor casing 81 and motor shaft 82.Motor casing 81 is fixed together with holding rod 42.Motor casing 81 is provided with binding post 3.Drive shaft 41 is connected to one end of motor shaft 82 by reductor 83.The other end of motor shaft 82 is located in holding rod 42.
Seeing Fig. 4, powershift mechanism 2 includes switching 21, pressing lever 22, latch 23 and insertion spring 24.Switch 21 and pressing lever 22 are positioned at the both sides of latch 23.Switch 21 is fixed in holding rod 42.Switch 21 is by compressing switch, owing to controlling motor 8 start and stop.Pressing lever 22 is located in holding rod 42.Latch 23 is slidably connected in holding rod 42.Motor shaft 82 is provided with the locking hole 25 inserted for latch 23.Latch 23 is provided with dodges hole 231.Dodge hole 231 for pressing lever 22 exceed latch 23 go drive switch 21.Dodge hole 231 and be provided with driving inclined-plane 232 towards one end of pressing lever 22.Insert spring 24 for driving latch 23 to be inserted in the locking hole 25 in motor shaft 82.
Seeing Fig. 5, binding post 3 includes insulator 33 and is arranged at the wiring Copper Foil 31 of insulator surface.Insulator 33 is fixed together with motor casing 81.Wiring Copper Foil 31 is electrically connected with the coil of motor.Wiring Copper Foil 31 is provided with wiring hole 32.Wiring hole 32 penetrates in insulator 33.Wiring hole 32 is the blind hole of vertically extending upper end closed.Wiring Copper Foil 31 is positioned at the lower end i.e. opening of wiring hole 32.Wiring hole 32 slidably connects sleeve 34.Sleeve 34 includes insulating segment 341 and conductive segment 342.Insulating segment 341 and conductive segment 342 are along sleeve 34 axial distribution.Insulating segment 341 is positioned at the lower section of conductive segment 342.Air cavity 35 and overload response cylinder 36 it is provided with in insulator 33.Wiring Copper Foil 31 constitutes a part for the wall of air cavity 35.Overload at least two, cylinder 36 of response.Overload response circumferentially distributed along sleeve 34 of cylinder 36.Overload response cylinder 36 includes overload response cylinder block 361 and overload response cylinder piston 362.Overload response cylinder block 361 is divided into closing chamber 3611 and open cavity 3612 by overload response cylinder piston 362.Close chamber 3611 to be connected with air cavity 35 by air flue 37.Open cavity 3612 is provided with pore 3613, i.e. realizes with atmosphere open by pore 3613.Overload response cylinder piston 362 is linked together with the insulating segment 341 in sleeve 34 by connecting rod 363.The axis of overload response cylinder piston 362 is parallel with the axis of sleeve 34.
Insulating segment 341 is arranged with exterior seal ring 343.Exterior seal ring 343 is rubber ring.Insulating segment 341 is sealed connected together by exterior seal ring 343 with wiring Copper Foil 31.Insulating segment 341 inner peripheral surface is provided with inner seal ring 344 and some support balls 345.The inner peripheral surface of conductive segment 342 is provided with inner support shell fragment 346.Inner support shell fragment 346 is the domes radially-inwardly arched upward along conductive segment.The outer peripheral face of conductive segment 342 is provided with outer support shell fragment 347.Outer support shell fragment 347 is the domes radially outward arched upward along conductive segment.Conductive segment 342 is connected to together with wiring Copper Foil 31 by outer support shell fragment 347.The upper end of wiring hole 32 is provided with air-vent 321.
See Fig. 6, when the power supply that induces one is to motor, one end that power line 38 is positioned at wiring Copper Foil 31 from wiring hole 32 is inserted sleeve 34.Insulating segment 341 is sealed connected together by inner seal ring 344 with power line 38.Inner support shell fragment 346 is connected to conductive segment 342 and power line 38 electric conductivity be linked together together with power line 38 elasticity.Conductive liquid is added in wiring hole 32.
Wiring Copper Foil 31 can produce temperature rise when the load, gas in air cavity 35 can produce expansion and iodine produces distillation and the air pressure in air cavity 35 is raised, and the structure that air pressure raises is that the gas inlet road 37 in air cavity 35 flows to close in chamber 3611 and drives (pressure in open cavity 3612 remains identical with atmospheric pressure) overload response cylinder piston 362 to move up.Overload response cylinder piston 362 by connecting rod 363 drive sleeve 34 wiring hole 32 on shifting.The response cylinder 36 that then transships when temperature rise to design temperature drive sleeve to slide into conductive segment 342 staggers with wiring Copper Foil 31 and insulating segment 341 contacts with wiring Copper Foil 31, thus realize power-off.When after Failure elimination, temperature can decline, temperature declines, and contraction of gas in air cavity 35 and iodine become solid-state and the air pressure in air cavity 36 is declined, the result declined is for making sleeve 34 slide downward in wiring hole 32, and when temperature returns to normal value, then conductive segment 342 links together with wiring Copper Foil 31 again thus realizes automatically reseting.
See Fig. 4, the present embodiment carries out the process of powershift: when pressing lever 22 is in and extracts state, under the effect inserting spring 24, latch 23 is inserted into dodge and holding rod 42 and motor shaft 82 is linked together in hole 231, now switch 21 is off, motor 8 is stopping, can only manual rotation, the most manually grip handle sleeve 61 and rotate holding rod 42, holding rod 42 drives motor shaft 82 to rotate together by latch 23, drives drive shaft 41 to rotate and realize driving spool when motor shaft 82 rotates.
Need to carry out motor when driving, press pressing lever 22, pressing lever 22 move down while under the effect driving inclined-plane 232, latch 23 is extracted and is dodged the sheathed of hole 231 and make by pressing spring 24 energy storage.When pressing lever 22 is applied to switch 21, latch 23 complete to extract dodge hole 231 i.e. motor shaft 82 disconnect with holding rod 42, now motor 8 electric and start, electric motor starting rear motor axle 82 rotates and drives drive shaft 41 to rotate.When extracting pressing lever 22 and make pressing lever lose the effect to switch 21, motor dead electricity stops.
Claims (10)
1. a 3D printer head structure, including head body, described head body is provided with spout and import, it is characterized in that, described head body is strip, and described spout is the gap extended along head body length direction, and described head body is provided with two panels scraper, forming capacity expansion tank between described two panels scraper, the port of export of described spout is positioned at described capacity expansion tank.
3D printer head structure the most according to claim 1, it is characterized in that, being provided with cushion chamber inside described shower nozzle, described cushion chamber is arranged on the joint face of two half-unit, the inner of described import is positioned at below the middle part of cushion chamber, and the entrance point of described spout is positioned at the top of cushion chamber.
3D printer head structure the most according to claim 1 and 2, it is characterized in that, the outer end of described import is provided with inlet valve, described inlet valve includes the valve body being provided with runner, it is positioned at the valve seat being provided with valve hole of the runner of valve body, the spool coordinated with valve seat and folding valve system, described spool is provided with the flow-control section of the aperture area controlling described valve hole, described flow-control section is taper, the taper side face of described flow-control section is provided with conical external screw thread, described valve hole is bellmouth, described bellmouth is provided with the conical internal thread coordinated with described conical external screw thread, described folding valve system realizes the folding of spool with the axis of flow-control section for axle rotates for driving spool, described spool can at least rotate a circle, the port of export of described runner is docking together with the outer end of described import.
null3D printer head structure the most according to claim 3，It is characterized in that，Described folding valve system includes that exporting power makes the drive shaft of described valve core rotation to described spool、It is connected to the holding rod of drive shaft、Motor and powershift mechanism，Described motor includes motor casing and motor shaft，Described motor casing is fixed together with described holding rod，Described drive shaft is connected to one end of described motor shaft，Described powershift mechanism includes the switch starting described motor、Drive the pressing lever of described switch、The insertion spring that the latch being slidably connected in holding rod linked together with holding rod by motor shaft and driving latch are inserted in motor shaft，Described latch is between described switch and pressing lever，Described latch is provided with dodges hole，Described hole of dodging is provided with the driving inclined-plane departing from motor shaft to drive described latch with the cooperation of described pressing lever.
3D printer head structure the most according to claim 4, it is characterized in that, described motor is provided with binding post, described binding post includes insulator and is arranged at the wiring Copper Foil of insulator, described wiring Copper Foil is electrically connected with the coil of described motor, described wiring Copper Foil is provided with the wiring hole penetrated in described insulator, described wiring hole slidably connects sleeve, described sleeve includes the conductive segment together with being connected to of the insulating segment along sleeve axial distribution with wiring Copper Foil, be provided with in described insulator air cavity that the heat produced by wiring Copper Foil carries out heating and by the gas expansion in air cavity be driven for the overload response cylinder driving conductive segment to stagger with described wiring Copper Foil.
3D printer head structure the most according to claim 5, it is characterized in that, described overload response cylinder includes overload response cylinder block and overload response cylinder piston, described overload response cylinder block is divided into closing chamber and open cavity by described overload response cylinder piston, described closing chamber connects with described air cavity, and described overload response cylinder piston is linked together with described sleeve by connecting rod.
3D printer head structure the most according to claim 1 and 2, it is characterized in that, the entrance point of described import is provided with resin transfer pipe, described resin transfer pipe is provided with fillter section, described fillter section includes the shell being provided with discharge opening, one-level filter plate it is provided with in described shell, two grades of filter plates it are additionally provided with in the space that described shell and one-level filter plate are surrounded, the space that described discharge opening is positioned at described two grades of filter plates and shell is surrounded, unhurried current chamber is formed between described two grades of filter plates and one-level filter plate, the aperture area of the filter opening of described one-level filter plate is more than the aperture area of the filter opening of two grades of filter plates.
3D printer head structure the most according to claim 7, it is characterized in that, described one-level filter plate and described shell are connected together in the way of rotating dismounting, described shell is provided with installation step, described two grades of filter plates are provided with support shirt rim, described two grades of filter plates are by some spring supportings on described installation step, and described one-level filter plate is provided with some insulated columns being pressed against on described two grades of filter plates；When described spring is in free state, described two grades of filter plates stretch out described shell.
3D printer head structure the most according to claim 8, it is characterized in that, described insulated column, along the outer peripheral edge being circumferentially distributed in two grades of filter plates of two grades of filter plates, forms filter mesh between adjacent insulated column, described support shirt rim is with forming auxiliary filter opening between described installation step.
3D printer head structure the most according to claim 9, it is characterised in that described installation step is provided with the annular stillpot circumferentially extending along two grades of filter plates being positioned at described auxiliary filter opening entrance point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262300.6A CN105922579A (en) | 2016-04-26 | 2016-04-26 | 3d printer spray head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262300.6A CN105922579A (en) | 2016-04-26 | 2016-04-26 | 3d printer spray head structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105922579A true CN105922579A (en) | 2016-09-07 |
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| CN201610262300.6A Pending CN105922579A (en) | 2016-04-26 | 2016-04-26 | 3d printer spray head structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202158200U (en) * | 2011-07-13 | 2012-03-07 | 宣达实业集团有限公司 | Strong corrosion resistant single-seat adjusting valve |
| CN102688829A (en) * | 2012-05-11 | 2012-09-26 | 杭州先临快速成型技术有限公司 | Resin coating device and method for manufacturing photo-cure quick prototype |
| CN204695964U (en) * | 2014-12-15 | 2015-10-07 | 广东明路电力电子有限公司 | A kind of power-off explosion-proof type capacitor |
| CN105235218A (en) * | 2015-11-11 | 2016-01-13 | 中国科学院重庆绿色智能技术研究院 | Extrusion head device based on fused deposition modeling technology |
| WO2016052228A1 (en) * | 2014-09-30 | 2016-04-07 | 合同会社Ｇｅｎｋｅｉ | 3d printer ejection head |
-
2016
- 2016-04-26 CN CN201610262300.6A patent/CN105922579A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202158200U (en) * | 2011-07-13 | 2012-03-07 | 宣达实业集团有限公司 | Strong corrosion resistant single-seat adjusting valve |
| CN102688829A (en) * | 2012-05-11 | 2012-09-26 | 杭州先临快速成型技术有限公司 | Resin coating device and method for manufacturing photo-cure quick prototype |
| WO2016052228A1 (en) * | 2014-09-30 | 2016-04-07 | 合同会社Ｇｅｎｋｅｉ | 3d printer ejection head |
| CN204695964U (en) * | 2014-12-15 | 2015-10-07 | 广东明路电力电子有限公司 | A kind of power-off explosion-proof type capacitor |
| CN105235218A (en) * | 2015-11-11 | 2016-01-13 | 中国科学院重庆绿色智能技术研究院 | Extrusion head device based on fused deposition modeling technology |
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Application publication date: 20160907 |