CN109228335A - A kind of double ejecting devices of rotation switching and its Method of printing of 3D printer - Google Patents
A kind of double ejecting devices of rotation switching and its Method of printing of 3D printer Download PDFInfo
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- CN109228335A CN109228335A CN201811159227.5A CN201811159227A CN109228335A CN 109228335 A CN109228335 A CN 109228335A CN 201811159227 A CN201811159227 A CN 201811159227A CN 109228335 A CN109228335 A CN 109228335A
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- rotation
- feeding
- fixed
- ejecting devices
- spray head
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- 238000007639 printing Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007921 spray Substances 0.000 claims abstract description 64
- 238000001125 extrusion Methods 0.000 claims abstract description 30
- 238000005096 rolling process Methods 0.000 claims abstract description 30
- 230000008878 coupling Effects 0.000 claims abstract description 21
- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 206010037660 Pyrexia Diseases 0.000 claims description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 19
- 239000004411 aluminium Substances 0.000 claims description 19
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000010146 3D printing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- B29C64/20—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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Coating Apparatus (AREA)
Abstract
The present invention relates to a kind of rotations of 3D printer to switch double ejecting devices, including rotary switching mechanism, the extrusion nozzle group being fixed on rotary switching mechanism；Rotary switching mechanism includes switch boards, is fixed in switch boards and be equipped with the switch motor that the fixed plate of d-axis, the shaft coupling connecting with d-axis, output end and shaft coupling connect；Squeezing out nozzle group includes two extrusion spray heads；Squeezing out spray head includes extruder and spray head；The feeding motor that extruder includes fixed block, is rotatably mounted on fixed block and be equipped with the adjusting handle of feed inlet, is rotatably mounted on the material-feeding rolling wheels adjusted on handle, the feeding gear being rotatably mounted on fixed block, output end and feeding gear connection；Fixed block is equipped with boss, and boss is equipped with discharge port, and for the line at discharge port center and feed inlet center between feeding gear and material-feeding rolling wheels, spray head is located at discharge outlet.The invention further relates to the Method of printings that a kind of rotation switches double ejecting devices.The invention belongs to the fields of printing equipment.
Description
Technical field
Switch the technical field of double ejecting devices more particularly to a kind of rotation switching of 3D printer the present invention relates to rotation
Double ejecting devices and its Method of printing.
Background technique
The printing device of printing 3D rendering is gradually recognized by people, and is gradually widely applied to various industries, existing
3D printer be substantially monochromatic single motor single spray head, just plurality of printers is needed to exchange when needing to print dichromatism or more, very
Cumbersome, there have been the double-colored 3D printers of printing accordingly, and carry out double-colored printing and need using two kinds of silks, therefore require
Printer is gathered around there are two spray head.Much double ejecting devices on the market, the position of two spray heads be it is relatively-stationary, not can be carried out
Switching, this has resulted in the complexity of 3d printing programming, for example, in the burning hot market 3D, whether domestic or external, desktop
The presentation of type 3D printer is multifarious, but " heart " nozzle structure is all similar.The double nozzle structures of traditional 3D printer
It is fixed parallel for two spray heads, relative position can't change when printing, come simply by the movement of process control position
Switch spray head, such a process increases the complexity of program, reduce printing effect, and print quality can also decline.
Summary of the invention
For the technical problems in the prior art, the first purpose of this invention is: it is simple to provide a kind of structure
The rotation of 3D printer switches double ejecting devices, can print the 3D printing product being made of two kinds of silks, present apparatus volume
It is small, control it is simple, high-efficient, printing cost can be reduced.
It is a further object to provide the Method of printing that a kind of rotation switches double ejecting devices, can print by
The 3D printing product of two kinds of silks composition, this method print control is simple, high-efficient, can reduce printing cost.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of rotation of 3D printer switches double ejecting devices, including rotary switching mechanism, is fixed on rotary switching mechanism
On extrusion nozzle group；Rotary switching mechanism includes switch boards, is fixed in switch boards and is equipped with the fixed plate and d-axis of d-axis
The switch motor that shaft coupling, output end and the shaft coupling of connection connect；Switch motor drives switch boards rotation by shaft coupling, from
And drive and squeeze out nozzle group rotation, realize the switching of spray head；
Squeezing out nozzle group includes two extrusion spray heads；Squeezing out spray head includes extruder and spray head；Extruder include fixed block,
Be rotatably mounted on fixed block and be equipped with the adjustings handle of feed inlet, the material-feeding rolling wheels being rotatably mounted on adjusting handle,
The feeding motor that feeding gear, output end and the feeding gear being rotatably mounted on fixed block connect；Fixed block is equipped with boss,
Boss is equipped with discharge port, and the line at discharge port center and feed inlet center is between feeding gear and material-feeding rolling wheels, spray head
Positioned at discharge outlet, feeding gear is by the way that under the driving of feeding motor and the auxiliary of material-feeding rolling wheels, silk is sent to from feed inlet
Discharge port finally enters spray head.
Further, spray head includes screwed pipe, the fever aluminium block for being fixed on screwed pipe lower end, is fixed under fever aluminium block
The nozzle at end；The upper end of screwed pipe is fixed on discharge outlet, and fever capacitor, discharge port, screwed pipe, hair are equipped with inside fever aluminium block
Hot aluminium block, nozzle form the inner passage communicated, and silk reaches fever aluminium block by screwed pipe from discharge port, in fever aluminium block
Fever capacitor under the action of silk melt, silk after thawing is sprayed from nozzle, completes printing.
Further, adjust handle one end be rotatably mounted on fixed block, and adjust handle one end be equipped with to
Under extension board, material-feeding rolling wheels are rotatably mounted on extension board, the distance between adjustable material-feeding rolling wheels and feeding gear,
The silk of different-thickness can be placed by squeezing out spray head.
Further, extruder further include be fixed on adjust handle on screwing, be fixed on boss lower screw,
Cover the spring on screwing and lower screw；Spring, which is fixed on, to be adjusted between handle and boss, the axis of screwing and lower screw
Axis be located along the same line, there are gap between screwing and lower screw, when adding or after replacement silk, adjusting handle can
To automatically reset.
Further, the end for adjusting handle is equipped with press section, press section is equipped with the circle being adapted with finger radian
Arc recess, convenient for adding or replacing silk.
Further, shaft coupling is flange coupling, switch boards are fan-shaped, and d-axis is located on the center line of switch boards,
It squeezes out nozzle group and fixed plate is separately fixed at the two sides of switch boards, flange coupling can transmit larger torque.
Further, the nozzle of two extrusion spray heads is symmetrically distributed in the two sides of switch boards center line, convenient for switching electricity
The programming and control of machine.
Further, the center line of two nozzles and the center line of switch boards are at 25 °.
Further, the structure or so of two extrusion spray heads is reversed, switch motor and feeding motor are stepping
Motor improves control performance, and starting stops response fastly, and error is small.
A kind of rotation switches the Method of printing of double ejecting devices, including following operating procedure:
The press section for adjusting handle is pressed, silk is put into feed inlet and across material-feeding rolling wheels and feeding gear, most
After be placed on discharge outlet, unclamp press section, adjust handle and reset under the action of the spring, silk is extruded in feeding by material-feeding rolling wheels
Between gear and material-feeding rolling wheels, two extrusion spray heads place different silks；
Start double ejecting devices, switch motor rotation, double ejecting devices automatically reset；
Switch boards rotation is driven by switch motor, so that selected extrusion sprinkler rotation is driven, until the center of nozzle
Line state in a vertical shape squeezes out spray head and starts to print；
Printing drives switch boards to rotate 50 °, until another until when needing replacing another extrusion spray head by switch motor
The center line of a nozzle state in a vertical shape, another squeezes out spray head and starts to print；
In print procedure, feeding motor drives feeding gear to spray head feeding；
Printing terminates, and double ejecting devices stop printing and automatically reseting.
Generally speaking, the present invention has the advantage that
The present invention is that a kind of rotation of 3D printer switches double ejecting devices, compares existing 3D printing ejecting device, this
Invention switches double ejecting devices using rotation, can not only print the 3d printed product being made of two kinds of silks, and rotate
The mode very simple of switching is reliable, easily controllable.Double nozzle printings can allow printed product rich and varied.The present invention controls letter
It is single reliable, high-efficient, since the structure of the present apparatus is simple, small in size, the difficulty of control programming is substantially reduced, is greatly reduced
The cost of manufacture and maintenance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the rotation of 3D printer switches double ejecting devices.
Fig. 2 is the structural schematic diagram of rotary switching mechanism.
Fig. 3 is the structural schematic diagram of the extrusion spray head on the switch boards left side.
Fig. 4 is the structural schematic diagram of the extrusion spray head on the right of switch boards.
Fig. 5 is the main view that this rotation switches double ejecting devices.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
It is now attached to what is occurred in Figure of description for the ease of uniformly checking each appended drawing reference inside Figure of description
Icon note is unitedly described as follows:
1 is rotary switching mechanism, and 2 is squeeze out nozzle group, and 3 is squeeze out spray head, and 4 be extruder, and 5 be spray head, and 1-1 is switching
Plate, 1-2 are fixed plate, and 1-3 is d-axis, and 1-4 is shaft coupling, and 1-5 is switch motor, and 1-6 is bolt, and 4-1 is fixed block, 4-2
To adjust handle, 4-3 is extension board, and 4-4 is material-feeding rolling wheels, and 4-5 is feeding gear, and 4-6 is feeding motor, and 4-7 is boss, 4-
8 be screwing, and 4-9 is lower screw, and 4-10 is spring, and 4-2-1 is feed inlet, and 4-2-2 is press section, and 4-7-1 is discharge port, 5-
1 is screwed pipe, and 5-2 is fever aluminium block, and 5-3 is nozzle.
In conjunction with shown in Fig. 1, Fig. 2, Fig. 5, a kind of double ejecting devices of rotation switching of 3D printer, including rotary switching mechanism
1, the extrusion nozzle group 2 being fixed on rotary switching mechanism 1；Rotary switching mechanism 1, which can drive, squeezes out the rotation of nozzle group 2.Rotation
Turn the fixed plate 1-2 and d-axis 1-3 that switching mechanism 1 includes switch boards 1-1, is fixed on switch boards 1-1 and is equipped with d-axis 1-3
The switch motor 1-5 of the shaft coupling 1-4 of connection, output end and shaft coupling 1-4 connection；Switch motor 1-5 output end connects shaft coupling
Device 1-4, shaft coupling 1-4 connection d-axis 1-3, d-axis 1-3 is fixed on fixed plate 1-2, equal on fixed plate 1-2 and switch boards 1-1
Equipped with threaded hole, the threaded hole of fixed plate 1-2 and switch boards 1-1 are passed through using bolt 1-6, fixed plate 1-2 is fixed on switching
On plate 1-1, when switch motor 1-5 rotation, switch boards 1-1 also can be rotated and then.Preferably, the shaft coupling 1- in the present embodiment
4 be flange coupling, and flange coupling can transmit larger torque, is more advantageous to control of the switch motor 1-5 to switch boards 1-1,
Switch boards 1-1 is fan-shaped, and d-axis 1-3 is located on the center line of switch boards 1-1, so that whole device uniform force and balance.It squeezes
Nozzle group 2 and fixed plate 1-2 are separately fixed at the two sides of switch boards 1-1 out, and squeezing out nozzle group 2 includes two extrusion spray heads 3；I.e.
Fixed plate 1-2, d-axis 1-3, shaft coupling 1-4 and switch motor 1-5 are fixed on the one side (reverse side) of switch boards 1-1, two extrusions
Spray head 3 is fixed on the another side (front) of switch boards 1-1.The nozzle 5-3 of two extrusion spray heads 3 is symmetrically distributed in switch boards 1-1
The two sides of center line, i.e., one squeezes out the left side that spray head 3 is fixed on switch boards 1-1, another squeezes out spray head 3 and is fixed on switch boards
The right of 1-1, it is preferred that left using the center line of the center line of two nozzle 5-3 and switch boards 1-1 at 25 ° in the present embodiment
The center line of the center line of the nozzle 5-3 on side and switch boards 1-1 are at 25 °, the center line and switch boards 1-1 of the nozzle 5-3 on the right
Center line at 25 °, two extrusion spray heads 3 are symmetrically distributed on switch boards 1-1, and structure or so phase of two extrusion spray heads 3
Anti- setting, i.e., the structure of two extrusion spray heads 3 are convenient for switch motor 1-5 using the center line of switch boards 1-1 as benchmark mirror symmetry
Programming and control, when handover is needed, it is only necessary to which on the basis of the center line of switch boards 1-1, switch motor 1-5 is rotated forward or anti-
Turn 25 °, the center line of nozzle 5-3 can be perpendicular to horizontal plane.Switch motor 1-5 is stepper motor, and control performance can be improved,
Starting stops response fastly, and error is small.
In conjunction with shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5, squeezing out spray head 3 includes extruder 4 and spray head 5；Extruder 4 includes fixed block
4-1, be rotatably mounted on fixed block 4-1 and equipped with feed inlet 4-2-1 adjusting handle 4-2, be rotatably mounted on adjusting by
Material-feeding rolling wheels 4-4 on handle 4-2, feeding gear 4-5, output end and the feeding gear 4-5 being rotatably mounted on fixed block 4-1
The feeding motor 4-6 of connection；Feeding motor 4-6 is fixed in the one side (reverse side) of fixed block 4-1, the output of feeding motor 4-6
End is connect across fixed block 4-1 with feeding gear 4-5, and feeding gear 4-5 is located on the another side (front) of fixed block 4-1, send
Material motor 4-6 is stepper motor, and control performance can be improved, and starting stops response fastly, and error is small.Feed inlet 4-2-1 is from upper past
Under across adjust handle 4-2, fixed block 4-1 be equipped with boss 4-7, boss 4-7 be located at the lower end of fixed block 4-1 and with fixed block 4-
1 is integrally formed, and boss 4-7 is equipped with discharge port 4-7-1, and discharge port 4-7-1 passes through boss 4-7, discharge port 4-7-1 from top to bottom
The line at center and the center feed inlet 4-2-1 is between feeding gear 4-5 and material-feeding rolling wheels 4-4, the center of discharge port 4-7-1
The center line of line and feed inlet 4-2-1 is located along the same line, and spray head 5 is fixed at discharge port 4-7-1 and is located at by nut
The lower end of boss 4-7, feeding gear 4-5 under the driving of feeding motor 4-6 and the auxiliary of material-feeding rolling wheels 4-4, by silk from into
Material mouth 4-2-1 is sent to discharge port 4-7-1, finally enters spray head 5.
Spray head 5 include screwed pipe 5-1, be fixed on the lower end screwed pipe 5-1 fever aluminium block 5-2, be fixed on fever aluminium block 5-2
The nozzle 5-3 of lower end；The upper end of screwed pipe 5-1 is fixed at discharge port 4-7-1 by nut, and silk is from can be with discharge port 4-7-
1 enters screwed pipe 5-1, fever capacitor is equipped with inside fever aluminium block 5-2, when silk is by fever aluminium block 5-2, fever capacitor can be with
Heat is generated, so that silk is melted during heating.Discharge port 4-7-1, screwed pipe 5-1, fever aluminium block 5-2, nozzle 5-3 shape
At the inner passage communicated, silk reaches fever aluminium block 5-2 by screwed pipe 5-1 from discharge port 4-7-1, and silk is in fever aluminium block
Melt under the action of fever capacitor in 5-2, the silk after thawing is sprayed from nozzle 5-3, completes printing.
The one end for adjusting handle 4-2 is rotatably mounted on fixed block 4-1, and the one end for adjusting handle 4-2 is equipped with downwards
Extension board 4-3, i.e., adjusting handle 4-2 one end be rotatably mounted on fixed block 4-1 by shaft, extension block 4-3 with tune
It saves handle 4-2 to be integrally formed, extension block 4-3 is vertical with handle 4-2 is adjusted, and extension block 4-3 can be rotated around shaft, feeding rolling
Wheel 4-4 is rotatably mounted on extension board 4-3, and when adjusting handle 4-2 and extension board 4-3 rotation, material-feeding rolling wheels 4-4 also and then turns
Dynamic, the distance between adjustable material-feeding rolling wheels 4-4 and feeding gear 4-5 have between material-feeding rolling wheels 4-4 and feeding gear 4-5
Silk passes through, and the silk of different-thickness can be placed by squeezing out spray head 3.
Extruder 4 further includes the screwing 4-8 being fixed on adjust on handle 4-2, the lower screw 4- being fixed on boss 4-7
9, the spring 4-10 on screwing 4-8 and lower screw 4-9 is covered；Screwing 4-8 is passed through from top to bottom adjusts handle 4-2, is located at
It adjusts the screwing 4-8 below handle 4-2 to be secured with nuts, lower screw 4-9 passes through boss 4-7 from top to bottom, spring 4-10's
One end (upper end) covers on screwing 4-8, and the other end (lower end) of spring 4-10 covers on lower screw 4-9, and spring 4-10 is fixed
It is adjusting between nut and boss 4-7 below handle 4-2, the axis of the axis of screwing 4-8 and lower screw 4-9 are located at same
On straight line, there are gap between screwing 4-8 and lower screw 4-9, when needing to add or replacing silk, screwing 4-8 is being adjusted
It, can be with holddown spring 4-10 and downwards close to lower screw 4-9, material-feeding rolling wheels 4-4 and feeding gear under the drive of handle 4-2 rotation
The distance between 4-5 can become larger, and silk can be from feed inlet 4-2-1 across adjusting material-feeding rolling wheels 4-4 and feeding gear 4-5
Gap, finally by discharge port 4-7-1 reach spray head 5, unclamp adjust handle 4-2, adjust handle 4-2 spring 4-10 effect
Under can automatically reset.
Adjust handle 4-2 end be equipped with press section 4-2-2, press section 4-2-2 be equipped with finger radian be adapted
Circular arc recess, finger can pin the rotation that circular arc recess controls to adjust handle 4-2, convenient for adding or replacing silk, reach
Light labour-saving effect.
This rotation switches double ejecting devices can be such that switch boards rotate by switch motor, to switch different extrusion sprays
Head, while during nozzle printing, feeding motor drives feeding gear rotation, and under the auxiliary of material-feeding rolling wheels, extruder is to spray
Head conveying silk, silk melt under the heating of the fever aluminium block of spray head, then flow out from nozzle, finally realize 3D printing.This
Device can place different silks for two extrusion spray heads, then print the 3D product of two kinds of combinations of materials.
When switching double ejecting devices using above-mentioned rotation, a kind of rotation switches the Method of printing of double ejecting devices, packet
Include following steps:
Step 1: pressing the press section for adjusting handle, silk is put into feed inlet and passing through material-feeding rolling wheels and feeding gear
Between, it is finally placed on discharge outlet, unclamps press section, handle is adjusted and resets under the action of the spring, material-feeding rolling wheels squeeze silk
It is pressed between feeding gear and material-feeding rolling wheels, two extrusion spray heads place different silks；
Step 2: starting double ejecting devices, switch motor rotation, double ejecting devices automatically reset；
Step 3: switch boards rotation is driven by switch motor, so that selected extrusion sprinkler rotation is driven, until nozzle
Center line state in a vertical shape, squeeze out spray head start to print；
Step 4: printing passes through switch motor and drives switch boards rotation until when needing replacing another extrusion spray head
50 °, until the center line of another nozzle state in a vertical shape, another squeezes out spray head and starts to print；
Step 5: feeding motor drives feeding gear to spray head feeding in print procedure；
Step 6: printing terminates, double ejecting devices stop printing and automatically reseting.
It should be noted that the first step to the 6th step be step arranged side by side, without sequencing.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of rotation of 3D printer switches double ejecting devices, it is characterised in that: including rotary switching mechanism, be fixed on rotation
Extrusion nozzle group on switching mechanism；Rotary switching mechanism includes switch boards, is fixed in switch boards and is equipped with the fixation of d-axis
The switch motor that plate, the shaft coupling connecting with d-axis, output end and shaft coupling connect；
Squeezing out nozzle group includes two extrusion spray heads；Squeezing out spray head includes extruder and spray head；Extruder includes fixed block, rotation
Formula is mounted on fixed block and is equipped with the adjusting handle of feed inlet, is rotatably mounted on the material-feeding rolling wheels adjusted on handle, rotation
Formula is mounted on the feeding motor that feeding gear, output end and feeding gear on fixed block connect；Fixed block is equipped with boss, boss
Equipped with discharge port, between feeding gear and material-feeding rolling wheels, spray head is located at the line at discharge port center and feed inlet center
Discharge outlet.
2. a kind of rotation of 3D printer as described in claim 1 switches double ejecting devices, it is characterised in that: spray head includes spiral shell
Line pipe, the fever aluminium block for being fixed on screwed pipe lower end, the nozzle for being fixed on fever aluminium block lower end；The upper end of screwed pipe is fixed on out
At material mouth, fever aluminium block inside is equipped with fever capacitor, and discharge port, screwed pipe, fever aluminium block, nozzle form the inside communicated and lead to
Road.
3. a kind of rotation of 3D printer as described in claim 1 switches double ejecting devices, it is characterised in that: adjust handle
One end is rotatably mounted on fixed block, and the one end for adjusting handle is equipped with downward extension board, the installation of material-feeding rolling wheels rotary type
On extension board.
4. a kind of rotation of 3D printer as claimed in claim 3 switches double ejecting devices, it is characterised in that: extruder also wraps
Include the screwing being fixed on adjust on handle, the lower screw being fixed on boss, the spring covered on screwing and lower screw；Bullet
Spring, which is fixed on, to be adjusted between handle and boss, and the axis of the axis of screwing and lower screw is located along the same line, screwing and
There are gaps between lower screw.
5. a kind of rotation of 3D printer as claimed in claim 3 switches double ejecting devices, it is characterised in that: adjust handle
End is equipped with press section, and press section is equipped with the circular arc recess being adapted with finger radian.
6. a kind of rotation of 3D printer as described in claim 1 switches double ejecting devices, it is characterised in that: shaft coupling is method
Blue shaft coupling, switch boards are fan-shaped, and d-axis is located on the center line of switch boards, squeeze out nozzle group and fixed plate is separately fixed at and cuts
Change the two sides of plate.
7. a kind of rotation of 3D printer as claimed in claim 6 switches double ejecting devices, it is characterised in that: two extrusion sprays
The nozzle of head is symmetrically distributed in the two sides of switch boards center line.
8. a kind of rotation of 3D printer as claimed in claim 7 switches double ejecting devices, it is characterised in that: two nozzles
Center line and the center line of switch boards are at 25 °.
9. a kind of rotation of 3D printer as described in claim 1 switches double ejecting devices, it is characterised in that: two extrusion sprays
The structure or so of head is reversed, and switch motor and feeding motor are stepper motor.
10. the Method of printing that a kind of rotation switches double ejecting devices, it is characterised in that: including following operating procedure:
The press section for adjusting handle is pressed, silk is put into feed inlet and across material-feeding rolling wheels and feeding gear, is finally put
In discharge outlet, press section is unclamped, handle is adjusted and resets under the action of the spring, silk is extruded in feeding gear by material-feeding rolling wheels
Between material-feeding rolling wheels, two extrusion spray heads place different silks；
Start double ejecting devices, switch motor rotation, double ejecting devices automatically reset；
Switch boards rotation is driven by switch motor, so that selected extrusion sprinkler rotation is driven, until the center line of nozzle is in
Vertical state squeezes out spray head and starts to print；
Printing drives switch boards to rotate 50 ° until when needing replacing another extrusion spray head by switch motor, until another is sprayed
The center line of mouth state in a vertical shape, another squeezes out spray head and starts to print；
In print procedure, feeding motor drives feeding gear to spray head feeding；
Printing terminates, and double ejecting devices stop printing and automatically reseting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811159227.5A CN109228335A (en) | 2018-09-30 | 2018-09-30 | A kind of double ejecting devices of rotation switching and its Method of printing of 3D printer |
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