CN109366995A - A kind of double print head extrusion systems of electromagnetism synchronism switching - Google Patents
A kind of double print head extrusion systems of electromagnetism synchronism switching Download PDFInfo
- Publication number
- CN109366995A CN109366995A CN201811452103.6A CN201811452103A CN109366995A CN 109366995 A CN109366995 A CN 109366995A CN 201811452103 A CN201811452103 A CN 201811452103A CN 109366995 A CN109366995 A CN 109366995A
- Authority
- CN
- China
- Prior art keywords
- print head
- active
- head assembly
- guide rail
- feeding wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
-
- 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
-
- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
Abstract
The invention discloses a kind of double print head extrusion systems of electromagnetism synchronism switching, including pedestal, active-feeding wheel, two miniature guide rail sliding blocks, two print head assemblies, two magnetic substances, electromagnet and positioning component, active-feeding wheel is rotatably installed in pedestal front, two miniature guide rail sliding blocks are symmetrically arranged in a manner of in vertical angle in active-feeding wheel two sides, two print head assemblies are vertically installed at respectively on two miniature guide rail sliding blocks, two magnetic substances are separately mounted at the top of print head assembly, electromagnet is horizontally arranged at pedestal front, solenoid actuated magnetic substance drives print head assembly alternately to switch at an angle along miniature guide rail center line direction.A driving motor and an electromagnet is used only in the innovative design of the present invention movement angle structure of two print heads, realizes the synchronism switching of completion feeding material component working condition while switch print head difference in height, and overall structure is simple and reliable, it is easy to accomplish.
Description
Technical field
The present invention relates to the 3D printers based on melting fused deposition rapid moulding technique, and in particular to a kind of electromagnetism synchronism switching
Double print head extrusion systems.
Background technique
Three-dimensional printer based on melting fused deposition rapid moulding technique is by the spray by Filamentous thermoplastic material from heating
It is squeezed out after mouth melting, according to each layer of desired trajectory of part, successively printing is carried out with fixed rate and is piled into three-dimension object.
In general, melting fused deposition rapid moulding technique needs to add support when manufacture has the object of cantilever design.If three-dimensional printer is only
There is unit, printhead design structure, the object of printing and support can only be constructed with same material.Although, can in print procedure
To make support section become more loose to achieve the purpose that convenient for removing by the method for operation for controlling print head, but due to
It is to be difficult to recognize on the boundary of object and support after the completion of printing and cause removing difficult, when support is removed using same material
Also object fine structure is be easy to cause to damage.In order to solve this problem, currently, the three-dimensional based on melting fused deposition rapid moulding technique
Printer printing mostly uses two print head arrangement, and one of print head is used for the model formings materials such as melting extrusion ABS plastic,
Another print head can be easy the backing material of physics removing or chemical stripping for melting extrusion, and when removing, which will not damage, to be had become
The model of type；When needing to squeeze out which kind of material in print procedure, system controls switching mechanism and corresponding print head is switched to work
Make state, realizes the printing alternate of two print heads.
The double print head extrusion systems of published three-dimensional printer can be divided into two classes: one kind is that two print heads are located always
In sustained height, the switching of double print heads is only realized by the working condition of two feeding material components of switching；It is another kind of to be two and beat
Print head not only has switched the working condition of two feeding material components when automatically switching, but also the difference in height of print head is also achieved and cut
It changes.
One, two print heads are fixed, and the working condition for only switching two feeding material components realizes the switching of double print heads,
It avoids issuable altitude location error during switching print head and influences the dimensional accuracies of printing objects.But this knot
Two print heads of structure level difficulty, are easy to scratch molded part in print procedure, and the salivation of nozzle can serious shadow
The surface quality of model is rung, while the working condition switching of feeding material component is needed by the mechanical mechanism of a set of complexity and by outer
Power is just able to achieve switching, increases the weight of extrusion system, constrains the raising of print speed significantly.
Two, the working condition of two feeding material components is not only had switched when two print head switchings, while relying on silk convection current
The thrust in road or the driving mechanism added realize the switching of two print head differences in height, avoid in print procedure and print
Head, which scrapes, arrives molded part, reduces influence of the nozzle salivation to model surface quality.But runner is pushed away by silk
The switching of print head difference in height is realized in power effect, be easy to be influenced to cause by material itself thermal property thrust size variation to
The reliability of print head work is reduced, and realizes the reset after print head switching by spring mechanism, mechanical part is added
Work and assembly precision have higher requirements, and quality is difficult to control, and certainly will influence the precision of two print head switching height；Pass through driving
Mechanism realizes the switching of two print head differences in height, and the machine driving by a set of complexity, positioning mechanism is needed even to increase drive
Dynamic motor is just able to achieve, and is increased cost, the volume and weight of extrusion system, is greatly constrained the raising of print speed.
Summary of the invention
In view of the above shortcomings of the prior art, the present invention provides a kind of double print head extrusion systems of electromagnetism synchronism switching,
Using only a driving motor and an electromagnet, it simple, accurate, reliable can realize that the automatic of two print heads alternately cuts
It changes, and then realizes the printing alternate of two kinds of silks.
To achieve the above object, the technical solution of the present invention is as follows:
A kind of double print head extrusion systems of electromagnetism synchronism switching, including it is pedestal, material extrusion motor, active-feeding wheel, miniature
Guide rail slide block, print head assembly, magnetic substance, electromagnet and the positioning group for print head assembly to be located in print position
Part, material extrusion motor are mounted on the pedestal back side, and active-feeding wheel is mounted on material extrusion motor and stretches out in the positive shaft of pedestal, miniature to lead
Rail sliding block, print head assembly and magnetic substance are two, and miniature guide rail sliding block includes mutually matched guide rail and sliding block, and two are led
Rail is symmetrically arranged in a manner of in vertical angle in active-feeding wheel two sides, and two print head assemblies are vertically installed at respectively
On two sliding blocks, two magnetic substances are separately mounted at the top of print head assembly, and electromagnet is horizontally arranged at pedestal front, and both ends are set
There is the magnetic pole opposite with two magnetic substances, after electromagnet conducting, the polarity of two magnetic poles is on the contrary, to drive two print head assemblies
Respectively along two guide rail counter motions.
As an improvement of the present invention, the print head assembly include small substrate, guide component, driven wheel assembly and
Wire vent component is melted, small substrate is fixed on sliding block, and guide component is vertically installed at small substrate top, driven wheel assembly activity peace
In the middle part of small substrate, melting wire vent component is vertically installed at small substrate lower part.
As an improvement of the present invention, the active-feeding wheel is equipped with the tooth for constraining, being oriented to silk
Shape slot.The design of serrate slot also plays the role of guiding to silk other than providing enough frictional force for feeding, makes silk
Motion profile is accurate.
As an improvement of the present invention, the guide component includes guide fixed block, connector and passage, and guide is solid
Determine block to be fixed on small substrate, connector is fixed on guide fixed block top surface vertically, and passage upper end is through guide fixed block and connector
Connection, the adjacent active-feeding wheel setting in passage lower end, and when print head assembly is in print state, guide tube hub and master
The tooth form groove center of dynamic drawing-inroller is concentric.
As an improvement of the present invention, the melting wire vent component includes flow-path tube, melting device and nozzle, melting device
It is fixed on small substrate, nozzle is fixed on melting device bottom surface vertically, and flow-path tube lower end is connected to through melting device with nozzle, on flow-path tube
Adjacent active-feeding wheel is held to be arranged, and when print head assembly is in print state, the tooth of runner tube hub and active-feeding wheel
Shape groove center is concentric.
As an improvement of the present invention, the driven wheel assembly include adjust screw, pressure spring, driven wheel mounting rack and
Driven wheel, small substrate are equipped with the boss with sliding slot far from the side of active-feeding wheel, and driven wheel mounting rack is slidably mounted on boss
Sliding slot in, adjust screw and pass through boss, be spirally connected after pressure spring with driven wheel mounting rack, driven wheel is rotatably installed in driven wheel installation
On frame.
As an improvement of the present invention, the positioning component includes two switching locating rods and is arranged on the base
Two waist-shaped holes, the center line of two waist-shaped holes is coaxial or parallel with the center line of corresponding guide rail respectively, two switching positioning
One end of bar is fixedly connected with two print head assemblies respectively, and the other end is respectively sleeved in two waist-shaped holes.Pass through waist-shaped hole
Auxiliary guiding role can not only be played the role of, bottom, which also acts as, limits print head assembly lower limit, so that realizing will beat
Print head assembly is located in the purpose of print position.
As an improvement of the present invention, the positioning component further includes two adjusting screws being spirally connected on the base,
The top of two adjusting screws is stretched out from two waist-shaped hole bottoms respectively.The protrusion height that screw can be adjusted by changing, is adjusted
Save the print position of print head assembly.
A driving motor and an electromagnetism is used only in the innovative design of the present invention movement angle structure of two print heads
Iron simple, accurate, reliable can realize that the automatic of two print heads alternately switches, realize the printing in turn of two kinds of silks.With
The prior art is compared, and is had the advantages that
First is that two print head designs are installed at symmetrical angle structure, realize complete while switching print head difference in height
At the synchronism switching of feeding material component working condition, overall structure is simple and reliable, it is easy to accomplish；
Second is that by changing the change for flowing through electromagnet solenoid current direction and realizing magneticaction direction, driving two is beaten
Print head carries out alternately switching, and entire handoff procedure can be achieved with without complicated mechanical transmission mechanism and positioning mechanism, greatly
The weight and cost of print system are reduced greatly, and easily controllable；
Alternately switch at an angle third is that two print heads are whole when switching, ensure that charging, discharging concentricity not
Become, improves the stability of switching；
Fourth is that print head switching is simple and reliable, latter two print head is provided with positioning, locking measure in place for switching, guarantees
Reliability when work is realized while switching precision.
Detailed description of the invention
Fig. 1 is the overall structure axonometric drawing of extrusion system forward direction；
Fig. 2 is the overall structure axonometric drawing of extrusion system backwards；
Fig. 3 is the decomposition texture schematic diagram of extrusion system, due to the left and right print head assembly symmetrical configuration of system, therefore is illustrated
Right print head assembly is only decomposed in figure；
Fig. 4 is extrusion system forward direction partial sectional view；
Fig. 5 is driven wheel assembly and active-feeding wheel matching relationship enlarged view；
Fig. 6 is the axial sectional view of print head assembly；
Fig. 7 is positive partial sectional view when right print head assembly is in print state；
Fig. 8 is electromagnetic action enlarged partial view in Fig. 7；
Fig. 9 is to switch position portion enlarged view in Fig. 7；
Figure 10 is positive partial sectional view when left print head assembly is in print state；
Figure 11 is electromagnetic action enlarged partial view in Figure 10；
Figure 12 is to switch position portion enlarged view in Figure 10.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Figures 1 to 6, double print head extrusion systems of a kind of electromagnetism synchronism switching, including pedestal 1, material extrusion motor
2, active-feeding wheel 3, two miniature guide rail sliding blocks symmetrically arranged on the left and the right, 4, two print head assemblies 5 and two switching locating rods
6 and the changeover module that is mainly made of magnetic substance 8, cushion cover 9 and electromagnet 10.Material extrusion motor 2 is mounted on the back side of pedestal 1,
Machine shaft stretches to the front of pedestal, and active-feeding wheel 3 is fixedly mounted on machine shaft, which is provided with for constraining, being oriented to
The serrate slot of silk 11；Miniature guide rail sliding block 4 includes being fixed on the positive guide rail 401 of pedestal 1 and sliding along 401 center line of guide rail
Sliding block 402, two guide rails 401 are symmetrically arranged by in a manner of vertical angle in 3 two sides of active-feeding wheel, it is preferred that
Two V-shaped arrangements of guide rail 401；Two print head assemblies 5 are vertically-mounted respectively to be fixed on two sliding blocks 402, and can be with cunning
Block 402 is moved in a straight line along 401 centerline direction of guide rail；Two magnetic substances 8 in changeover module are fixed on two respectively
5 top of print head assembly, electromagnet 10 are horizontally arranged at 1 front of pedestal by two cushion covers 9, and the magnetic pole difference of left and right ends is just
Against the magnetic substance 8 of lower section, to actuation, the repulsive interaction of two magnetic substances 8 in left and right, driving left and right after being powered by electromagnet 10
Two print head assemblies 5 alternately switch at an angle along 401 centerline direction of guide rail；Switching in place after by switching locating rod 6,
The waist-shaped hole 101 being arranged on pedestal 1 and the limit for adjusting screw 7 and realizing descent direction being screwed on pedestal 1, by electricity
The limit of magnet 10 and corresponding magnetic substance 8 there is a natural attraction between the sexes effect realizes ascent direction, realizes precisely cutting to print head assembly 5
It changes.Entire switching mechanism structure is simple, is installed and designed by the symmetrical angle structure to left and right print head assembly and electromagnet
It is attracted, repulsive force effect, realizes the synchronism switching for completing left and right driven wheel assembly while the switching of print head assembly difference in height,
Reliable in action is easily achieved.
Print head assembly 5 is mainly by small substrate 501, guide component 502, driven wheel assembly 503 and melting wire vent component
504 compositions.Small 501 back side of substrate, which is adjacent to, to be fixed on sliding block 402, can do straight line along 401 centerline direction of guide rail with sliding block 402
Movement.Guide component 502 is vertically installed at small 501 top of substrate, including guide fixed block 5021, connector 5022 and passage
5023, guide fixed block 5021 is fixed on small 501 front of substrate, and connector 5022 is fixed on 5021 top surface of guide fixed block vertically,
5023 upper end of passage is connected to through guide fixed block 5021 with connector 5022, and the adjacent active-feeding wheel 3 in lower end is arranged, and pair
When the print head assembly 5 answered is in print state, center and the tooth form groove center of active-feeding wheel 3 are concentric.Driven wheel assembly
503 are arranged in small 501 middle part of substrate, when corresponding print head assembly 5 is in print state, with 3 axle center of active-feeding wheel
It is in the same horizontal position, main includes adjusting screw 5031, pressure spring 5032, driven wheel mounting rack 5033,5034 and of driven wheel
Circlip 1；Small substrate 501 is equipped with the boss 5011 with sliding slot far from the side of active-feeding wheel 3, adjusts screw 5031 and wears
It is spirally connected after the through-hole crossed on boss 5011, pressure spring 5032 with driven wheel mounting rack 5033, while driven wheel mounting rack 5033 is spirally connected
End limit can horizontally slip along the chute in the sliding slot of boss 5011, and the compression of pressure spring 5032 is adjusted by adjusting screw 5031
Length adjusts the center of driven wheel 5034 and active-feeding wheel 3 away to reach adjusting driven wheel 5034 to 11 pretightning force of silk
Effect, also improve printing different-diameter deviation material adaptability.Melting wire vent component 504 is vertically installed at small substrate
501 lower parts, including flow-path tube 5041, melting device 5042 and nozzle 5043, melting device 5042 are fixed on small 501 front of substrate, spray
Mouth 5043 is fixed on 5042 bottom surface of melting device vertically, and 5041 lower end of flow-path tube is connected to through melting device 5042 with nozzle 5043, runner
The adjacent active-feeding wheel 3 in 5041 upper end of pipe is arranged, and when corresponding print head assembly 5 be in print state, center and
The tooth form groove center of active-feeding wheel 3 is concentric, and the flow-path tube 5041 of big L/D ratio and the split-type design of nozzle 5043 reduce
Whole difficulty of processing, improves the machining accuracy of part.
Switching locating rod 6, waist-shaped hole 101 and adjusting screw 7 is two, constitutes the positioning component of this extrusion system, is led to
The cooperation with changeover module is crossed, realizes the positioning after print head assembly 5 switches.Waist-shaped hole 101 is arranged on pedestal 1, center
Line is coaxial or parallel with the center line of corresponding guide rail 401 respectively, adjusts screw 7 and is screwed onto 1 bottom of pedestal, and top is from waist-shaped hole
101 bottoms are stretched out, and switching 6 one end of locating rod is fixedly connected with small substrate 501, and other end slide fit is inserted in waist-shaped hole 101.Waist
Type hole 101 can not only play the role of auxiliary guiding role, and bottom, which also acts as, limits 5 lower limit of print head assembly, thus
Realize the purpose that print head assembly 5 is located in print position.It is, of course, also possible to pass through the elastic card to 101 bottom of waist-shaped hole
Button design, realizes the fixedlying positioning in lower limit of print head assembly 5.Adjust screw 7 effect be in order to adjust lower limit position,
The protrusion height on 7 top of screw, i.e., the lower limit position of changeable print head assembly 5 are adjusted by changing.
Changeover module is made of magnetic substance 8, cushion cover 9 and electromagnet 10.It is small that two magnetic substances 8 are fixed on left and right respectively
501 top of substrate, electromagnet 10 are horizontally fixed on 1 top of pedestal by cushion cover 9 and matched screw, and make 10 both ends of electromagnet
Magnetic pole faces the magnetic substance 8 on the small substrate 501 in lower section respectively, to have the function that actuation synchronous with electromagnet 10, repelling, peace
The magnetic pole of two magnetic substances 8 is consistent towards answering when dress.When print head switches, 10 solenoid of electromagnet is powered, due to electric current
Magnetic effect makes 10 both ends of electromagnet form different magnetic poles, is fixed on the magnetic substance 8 on the small substrate 501 in left and right with underface and generates
Mutual attraction, repulsive interaction, so that the small substrate 501 and entire print head assembly 5 that drive connection fixed thereto are along guide rail
401 direction synchronization liftings are mobile, realize the difference in height switching of two print head assemblies 5.Change the side for flowing through electric current in solenoid
To so that 10 both ends magnetic pole of electromagnet mutually converts, then its magnetic force direction generated to left and right magnetic substance 8 also generates exchange, i.e., former
Come be attracted become mutually to repel, repel originally become attracted, driving left and right print head assembly 5 do opposite direction elevating movement from
And realize the mutual switching of left and right print head assembly 5.Two miniature guide rail sliding blocks 4 are arranged symmetrically at angle α, so that handoff procedure
Middle print head assembly 5 is not only with the componental movement up and down in vertical direction, but also in the horizontal direction there is also left and right componental movement,
While reaching the switching of upper-lower height difference, also realize that the contact with active-feeding wheel 3 of silk 11 is detached from, it is ensured that active-feeding wheel
3 will not scrape the silk 11 for being not at working condition.When print head assembly 5 moves down switching, it is fixed on small substrate 501
On synchronous be displaced downwardly to along the waist-shaped hole 101 on pedestal 1 of switching locating rod 6 encounter print head assembly 5 when adjusting screw 7 and move down
Movement stops, and realizes the reliable location that print head assembly 5 switches downwards；And the running fix of 5 upward direction of print head assembly according to
By electromagnet 10 and corresponding magnetic substance 8, there is a natural attraction between the sexes is accurately positioned.By simple electromagnet and magnetic substance compound action, it is
The switching of double print heads provides stable driving force and reliable positioning, greatly reduces switching device transmission, positioning mechanism
Complexity and whole weight.As can be seen that in 5 handoff procedure of print head assembly, connector 5022, passage 5023, runner
The silk circulation passage that pipe 5041, melting device 5042 and nozzle 5043 are constituted is in a vertical state always, will not deflect, beat
It is vertical always to print angle, compared in such a way that spinwriter carries out height switching, switching precision is easily guaranteed that.
It is illustrated below with reference to specific handoff procedure of the Fig. 7 to Figure 12 to print head assembly 5, (R) after being marked in figure
(L) only refers only to right side and left side, more preferably to express clearly, is oriented the pole N for upward by the magnetic pole of magnetic substance 8 and illustrates:
Referring to shown in Fig. 7 to Fig. 9, when adding positive voltage, electric current to flow through helical from left to right in 10 solenoid left end of electromagnet
When circle, due to the magnetic effect of electric current, 10 left end magnetic pole of electromagnet is the pole S at this time, right end magnetic pole is the pole N, respectively with left magnetic substance 8
(L), right magnetic substance 8 (R) forms two groups of S-N, N-N magneticactions, and driving right side print head assembly 5 is along right rail 401
Lower section is moved at lower limit and 3 cooperation of active-feeding wheel to the left, at the same left side print head assembly 5 along left rail 401 to the left
Top is moved at upper limit, generates difference in height Δ h, right side printing between right nozzle 5043 (R), left nozzle 5043 (L) at this time
Head assembly 5 is in running order (print state), (R) the wire vent axis of right nozzle 5043 and 3 axle center normal of active-feeding wheel away from
It is less than (L) the wire vent axis of left nozzle 5043 and 3 axle center normal distance L ' of active-feeding wheel from L.In handoff procedure, right cut is changed
Waist-shaped hole 101 of the locating rod 6 (R) along 1 right side of pedestal slides into be stopped with right 7 contact position (R) of adjusting screw, completes right side printing
The reliable location that head assembly 5 moves down；Left magnetic substance 8 (L) is moved on left side print head assembly 5 and 10 left end magnetic pole of electromagnet is close
Stop at actuation, completes the accurate positionin that left side print head assembly 5 moves up, ensure that the accuracy of left and right print head assembly switching
With the reliability of work.
Referring to shown in Figure 10 to Figure 12, spiral shell is flowed through when adding positive voltage, electric current to turn left from the right side in 10 solenoid right end of electromagnet
When coil, due to the magnetic effect of electric current, 10 left end magnetic pole of electromagnet is the pole N at this time, right end magnetic pole is the pole S, respectively with left magnetism
Body 8 (L), right magnetic substance 8 (R) form two groups of N-N, S-N magneticactions, and driving left side print head assembly 5 is along left rail
401 are moved to the right at lower limit and 3 cooperation of active-feeding wheel, at the same right side print head assembly 5 along right rail 401 to
Upper right side is moved at upper limit, generates difference in height Δ h ' between right nozzle 5043 (R), left nozzle 5043 (L) at this time, left side is beaten
Print head assembly 5 is in running order, and (L) the wire vent axis of left nozzle 5043 is less than with 3 axle center normal distance L ' of active-feeding wheel
(R) the wire vent axis of right nozzle 5043 and 3 axle center normal distance L of active-feeding wheel.In handoff procedure, locating rod 6 is changed in left cut
(L) waist-shaped hole 101 along 1 upper left side of pedestal slides into stops with left 7 contact position (L) of adjusting screw, completes left side printhead cluster
The reliable location that part 5 moves down；Right magnetic substance 8 (R) is moved on right side print head assembly 5 to be closely attracted with 10 right end magnetic pole of electromagnet
Place stops, and completes the accurate positionin that right side print head assembly 5 moves up, ensure that the accuracy and work of the switching of left and right print head assembly
The reliability of work.
The magneticaction direction of double print head extrusion systems of the invention by switching energization electromagnet and magnetic substance, driving
Two print head assemblies in left and right do synchronous backward elevating movement along the miniature guide rail sliding block that symmetrical angle structure is installed, to realize
The difference in height switching and the switching of driven wheel assembly working condition of the print head assemblies of left and right two；Meanwhile left and right printhead cluster
Part integrally switches over, and ensure that the precision and stability of switching.
It is to be appreciated that term " on ", "lower" in the present embodiment, "front", "rear", "left", "right", "vertical", " water
It is flat ", "inner", "outside", "top", the instructions such as "bottom" orientation or positional relationship be to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description embodiments of the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to embodiments of the present invention
System.
Simply to illustrate that technical concepts and features of the invention, its purpose is allows in the art above-described embodiment
Those of ordinary skill cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all
It is the equivalent changes or modifications that the essence of content according to the present invention is made, should be covered by the scope of protection of the present invention.
Claims (8)
1. a kind of double print head extrusion systems of electromagnetism synchronism switching, it is characterised in that: including pedestal (1), material extrusion motor (2),
Active-feeding wheel (3), miniature guide rail sliding block (4), print head assembly (5), magnetic substance (8), electromagnet (10) and for that will beat
Print head assembly (5) is located in the positioning component of print position, and material extrusion motor (2) is mounted on pedestal (1) back side, active-feeding wheel
(3) it is mounted on material extrusion motor (2) to stretch out in pedestal (1) positive shaft, miniature guide rail sliding block (4), print head assembly (5) and magnetic
Property body (8) is two, and miniature guide rail sliding block (4) includes mutually matched guide rail (401) and sliding block (402), two guide rails
(401) it is symmetrically arranged in a manner of in vertical angle in active-feeding wheel (3) two sides, two print head assemblies (5) are respectively
It is vertically installed on two sliding blocks (4), two magnetic substances (8) are separately mounted at the top of print head assembly (5), electromagnet (10) water
For safety mounted in pedestal (1) front, both ends are equipped with the magnetic pole opposite with two magnetic substances (8), after electromagnet (10) conducting, two magnetic
The polarity of pole is on the contrary, to drive two print head assemblies (5) to do reversed elevating movement along two guide rails (401) respectively.
2. a kind of extra quality extrusion system of V-type switching print head according to claim 1, it is characterised in that: described beats
Print head assembly (5) includes small substrate (501), guide component (502), driven wheel assembly (503) and melts wire vent component (504),
Small substrate (501) is fixed on sliding block (402), and guide component (502) is vertically installed at small substrate (501) top, driven wheel group
Part (503) is movably arranged in the middle part of small substrate (501), and melting wire vent component (504) is vertically installed at small substrate (501) lower part.
3. a kind of extra quality extrusion system of V-type switching print head according to claim 2, it is characterised in that: the master
Dynamic drawing-inroller (3) are equipped with the serrate slot for constraining, being oriented to silk (11).
4. a kind of extra quality extrusion system of V-type switching print head according to claim 3, it is characterised in that: described leads
Material component (502) includes guide fixed block (5021), connector (5022) and passage (5023), and guide fixed block (5021) is fixed
On small substrate (501), connector (5022) is fixed on guide fixed block (5021) top surface vertically, and passage (5023) upper end is through leading
Material fixed block (5021) is connected to connector (5022), adjacent active-feeding wheel (3) setting in passage (5023) lower end, and is being printed
When head assembly (5) is in print state, passage (5023) center and the tooth form groove center of active-feeding wheel (3) are concentric.
5. a kind of extra quality extrusion system of V-type switching print head according to claim 3, it is characterised in that: described is molten
Blend-out silk component (504) includes flow-path tube (5041), melting device (5042) and nozzle (5043), and melting device (5042) is fixed on small
On substrate (501), nozzle (5043) is fixed on melting device (5042) bottom surface vertically, and flow-path tube (5041) lower end is through melting device
(5042) it is connected to nozzle (5043), adjacent active-feeding wheel (3) setting in flow-path tube (5041) upper end, and in print head assembly
(5) when being in print state, flow-path tube (5041) center and the tooth form groove center of active-feeding wheel (3) are concentric.
6. a kind of extra quality extrusion system of V-type switching print head according to claim 2, it is characterised in that: it is described from
Drive wheel assemblies (503) include adjusting screw (5031), pressure spring (5032), driven wheel mounting rack (5033) and driven wheel (5034),
Small substrate (501) is equipped with the boss (5011) with sliding slot far from the side of active-feeding wheel (3), and driven wheel mounting rack (5033) is sliding
It is dynamic to be mounted in the sliding slot of boss (5011), it adjusts screw (5031) and passes through boss (5011), pressure spring (5032) afterwards and driven wheel
Mounting rack (5033) is spirally connected, and driven wheel (5034) is rotatably installed on driven wheel mounting rack (5033).
7. a kind of extra quality extrusion system of V-type switching print head according to claim 1, it is characterised in that: described determines
Hyte part includes two waist-shaped holes (101) of two switchings locating rod (6) and setting on pedestal (1), two waist-shaped holes (101)
Center line it is coaxial or parallel with the center line of corresponding guide rail (401) respectively, two switching locating rod (6) one end respectively with
Two print head assemblies (5) are fixedly connected, and the other end is respectively sleeved in two waist-shaped holes (101).
8. a kind of extra quality extrusion system of V-type switching print head according to claim 7, it is characterised in that: described determines
Hyte part further includes two adjusting screws (7) being screwed on pedestal (1), and two adjust the top of screw (7) respectively from two
Waist-shaped hole (101) bottom is stretched out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811452103.6A CN109366995B (en) | 2018-11-30 | 2018-11-30 | A kind of double print head extrusion systems of electromagnetism synchronism switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811452103.6A CN109366995B (en) | 2018-11-30 | 2018-11-30 | A kind of double print head extrusion systems of electromagnetism synchronism switching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109366995A true CN109366995A (en) | 2019-02-22 |
| CN109366995B CN109366995B (en) | 2019-07-05 |
Family
ID=65376349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811452103.6A Active CN109366995B (en) | 2018-11-30 | 2018-11-30 | A kind of double print head extrusion systems of electromagnetism synchronism switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109366995B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715333A (en) * | 2021-09-09 | 2021-11-30 | 广东动智技术有限公司 | Multifunctional 3D printing head |
| CN115091750A (en) * | 2022-07-13 | 2022-09-23 | 深圳市创想三维科技股份有限公司 | Double-nozzle device and 3D printing equipment |
| CN115214137A (en) * | 2022-07-13 | 2022-10-21 | 深圳市创想三维科技股份有限公司 | Switching device and 3D printing apparatus |
| US20220404796A1 (en) * | 2021-06-22 | 2022-12-22 | International Business Machines Corporation | 3d printing in a confined space |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206446130U (en) * | 2017-02-10 | 2017-08-29 | 昆山市奇迹三维科技有限公司 | A kind of double ejecting devices of 3D printer |
| US20170252828A1 (en) * | 2016-03-03 | 2017-09-07 | Desktop Metal, Inc. | Material supply for magnetohydrodynamic metal manufacturing |
| CN107498866A (en) * | 2017-09-14 | 2017-12-22 | 广州迈普再生医学科技有限公司 | A kind of 3D printing shower nozzle automatic switching control equipment and its control method and 3D printer |
-
2018
- 2018-11-30 CN CN201811452103.6A patent/CN109366995B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170252828A1 (en) * | 2016-03-03 | 2017-09-07 | Desktop Metal, Inc. | Material supply for magnetohydrodynamic metal manufacturing |
| CN206446130U (en) * | 2017-02-10 | 2017-08-29 | 昆山市奇迹三维科技有限公司 | A kind of double ejecting devices of 3D printer |
| CN107498866A (en) * | 2017-09-14 | 2017-12-22 | 广州迈普再生医学科技有限公司 | A kind of 3D printing shower nozzle automatic switching control equipment and its control method and 3D printer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220404796A1 (en) * | 2021-06-22 | 2022-12-22 | International Business Machines Corporation | 3d printing in a confined space |
| US11841695B2 (en) * | 2021-06-22 | 2023-12-12 | International Business Machines Corporation | 3D printing in a confined space |
| CN113715333A (en) * | 2021-09-09 | 2021-11-30 | 广东动智技术有限公司 | Multifunctional 3D printing head |
| CN115091750A (en) * | 2022-07-13 | 2022-09-23 | 深圳市创想三维科技股份有限公司 | Double-nozzle device and 3D printing equipment |
| CN115214137A (en) * | 2022-07-13 | 2022-10-21 | 深圳市创想三维科技股份有限公司 | Switching device and 3D printing apparatus |
| CN115091750B (en) * | 2022-07-13 | 2024-01-05 | 深圳市创想三维科技股份有限公司 | Double-spray-head device and 3D printing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109366995B (en) | 2019-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109366995B (en) | A kind of double print head extrusion systems of electromagnetism synchronism switching | |
| CN109366996B (en) | A kind of extra quality extrusion system of V-type switching print head | |
| US20210162664A1 (en) | 3d printer | |
| CN109366994B (en) | A kind of extra quality extrusion system of rocker arm switching driving wheel | |
| KR20180001044U (en) | Hand-held three-dimensional drawing device | |
| CN107042627A (en) | A kind of three-dimensional printer of automatically replaceable shower nozzle | |
| CN206605783U (en) | A kind of three-dimensional printer of automatically replaceable shower nozzle | |
| CN108582780B (en) | A kind of three-dimensional printer extrusion system automatically switching print head | |
| CN209336103U (en) | A kind of double print head extrusion systems of electromagnetism synchronism switching | |
| CN204658955U (en) | A kind of 3D printer Z axis print platform and printer | |
| AU9158091A (en) | Linear motor driven label inserter for in-mold labelling | |
| CN215396937U (en) | Transmission device of 3D printer | |
| CN105365222A (en) | Coaxial powder feeding powder bonding 3D printer and control method thereof | |
| CN219133642U (en) | Print carriage | |
| CN209336104U (en) | A kind of extra quality extrusion system of V-type switching print head | |
| CN109501166A (en) | Injection mold core pulling elder generation fixed structure | |
| CN214193909U (en) | Non-woven fabric cutting equipment | |
| CN202622227U (en) | Stably-movable welding head installation platform of welding wire machine | |
| JPS6174853A (en) | Matrix printer | |
| CN210916478U (en) | Weaving machine braided wire positioner | |
| CN209504919U (en) | A kind of extra quality extrusion system of rocker arm switching driving wheel | |
| CN213890969U (en) | Injection molding machine line rail formula injection device | |
| CN214054042U (en) | Height adjusting device for welding machine body | |
| CN220077836U (en) | Material taking mechanism capable of moving back and forth and up and down | |
| CN117445335A (en) | Optical injection mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |