CN112428582A - 3D printer pumpback prevents drawing wire subassembly based on fused deposition - Google Patents
3D printer pumpback prevents drawing wire subassembly based on fused deposition Download PDFInfo
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- CN112428582A CN112428582A CN202011195565.1A CN202011195565A CN112428582A CN 112428582 A CN112428582 A CN 112428582A CN 202011195565 A CN202011195565 A CN 202011195565A CN 112428582 A CN112428582 A CN 112428582A
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- fused deposition
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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
- B29C64/209—Heads; Nozzles
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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
- B29C64/10—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]
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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
- B29C64/295—Heating elements
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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
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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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
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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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)
Abstract
The invention relates to the technical field of 3D printers and discloses a D printer withdrawal anti-wire-drawing assembly based on fused deposition. This 3D printer pumpback prevents drawing wire subassembly based on fused deposition, through the outside dielectric medium board of regulating plate, at the inside live distance of regulation storehouse, thereby influence just to the area between positive electrode plate and the negative electrode plate, thereby influence the inside electric current of controller, and then make the inside electric current in storehouse that adjusts the temperature, can control solenoid's heating effect and the running rate of fan, and then make the inside temperature of input tube obtain control, prevent to print the phenomenon of silk cooling wire drawing under the low temperature, thereby the drawing wire effect of preventing of shower nozzle has obtained the improvement.
Description
Technical Field
The invention relates to the technical field of 3D printers, in particular to a 3D printer withdrawal anti-drawing assembly based on fused deposition.
Background
The fused deposition rapid prototyping process, namely the FDM process, is one of the most promising forming processes in the rapid prototyping process, wherein the FDM process has the characteristics of high forming speed, low cost, high forming precision and the like, is widely used for manufacturing conceptual models, prototype parts and even functional parts, and is also one of important composition technologies in the 3D printing technology.
The invention is published under the number CN110962341A, and the Chinese invention published under the number 2020, 4 and 7 discloses a conveniently-adjusted spraying device for 3D printing, which comprises a printer main body, a spraying component, a scraping component and an aggregate component, wherein the printer main body comprises a supporting seat, a supporting frame, a first electric cylinder, a printing groove and a rectangular frame, the spraying component comprises a second electric cylinder, a connecting frame, two groups of chutes, two groups of sliding blocks, a storage box, two groups of baffles, two groups of first electric push rods, a forward and reverse rotating motor and a ball screw, the scraping component comprises a second electric push rod, a connecting rod and a leveling roller, the spraying device can adjust a discharge port through the matching of the structures, but the invention does not control the drawing wire of the discharge port, so that the drawing amount is greatly deviated or the drawing cooling is too fast, the material cannot be completely pressed back into a melting cavity, and the phenomenon of excessive drawing occurs, thereby influence the quality of printing the thing, and then make the printing efficiency of 3D printer reduce, cause the waste of printing the material.
Aiming at the problems, the invention provides a 3D printer withdrawal anti-wire-drawing assembly based on fused deposition, which has the advantages of good anti-wire-drawing effect and high printing efficiency.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a 3D printer withdrawal anti-wiredrawing assembly based on fused deposition, which has the advantages of good anti-wiredrawing effect and high printing efficiency, and solves the problems of poor anti-wiredrawing effect and low printing efficiency.
(II) technical scheme
In order to solve the technical problems, the invention provides the following technical scheme:
a D printer withdrawal anti-drawing assembly based on fused deposition comprises an anti-drawing mechanism, wherein an input pipe is fixedly connected to the middle of the anti-drawing mechanism, a spray head is fixedly connected to the bottom of the input pipe, adjusting bins are fixedly connected to the left side and the right side of the spray head, negative electrode plates are fixedly connected to the tops of the adjusting bins, positive electrode plates are fixedly connected to the bottoms of the negative electrode plates, the positive electrode plates are movably connected to the tops of the adjusting blocks through adjusting plates and telescopic blocks, adjusting rods are movably connected to the tops of the adjusting rods, extrusion plates are fixedly connected to the tops of the telescopic rods, connecting rods are movably connected to the left side and the right side of the telescopic blocks, grooves are formed in the left side and the right side of each connecting rod, sliding bins are fixedly connected to the outer sides of the grooves, movable rods are movably connected to the inner parts of the, the wire drawing mechanism is characterized in that a temperature adjusting bin is fixedly connected to the inside of the wire drawing mechanism, a controller is fixedly connected to the bottom of the temperature adjusting bin, a contact is movably connected to the inside of the controller, the top of the controller is electrically connected with a fan through a wire, an electromagnetic plate is fixedly connected to the top of the fan, and an electromagnetic coil is fixedly connected to the outer side of the electromagnetic plate.
Preferably, the regulating cabin on the left side and the right side are symmetrically distributed about a center line of the input pipe, the negative electrode plate and the positive electrode plate are symmetrically distributed about the center line of the regulating cabin, and the current directions inside the negative electrode plate and the positive electrode plate are opposite.
Preferably, the inner diameter of the adjusting bin is matched with the diameter of the adjusting plate, a dielectric plate is fixedly connected to the outer portion of the adjusting plate, and the adjusting plate is made of an insulating material.
Preferably, the bottom of the telescopic block is provided with a sliding block, the telescopic block is movably connected with the guide rail through the sliding block arranged at the bottom of the telescopic block, and the sliding blocks are fixedly connected to the left side and the right side of the telescopic block.
Preferably, the bottom of the connecting rod is provided with a sliding block, the connecting rod is movably connected with the groove through the sliding block, and the diameter of the sliding block is matched with that of the groove.
Preferably, the diameter of the sliding bin is matched with that of the movable rod, the sliding bins are symmetrically distributed about the center line of the telescopic block, and the length of the movable rod is smaller than that of the telescopic block.
Preferably, the temperature adjusting chambers are symmetrically distributed about the center line of the telescopic block, the controller is movably connected with the contacts through springs, and a gap is formed between the left contact and the right contact.
(III) advantageous effects
Compared with the prior art, the invention provides a 3D printer withdrawal anti-drawing component based on fused deposition, which has the following beneficial effects:
1. this 3D printer pumpback prevents drawing wire subassembly based on fused deposition, through the outside dielectric medium board of regulating plate, at the inside live distance of regulation storehouse, thereby influence just to the area between positive electrode plate and the negative electrode plate, thereby influence the inside electric current of controller, and then make the inside electric current in storehouse that adjusts the temperature, can control solenoid's heating effect and the running rate of fan, and then make the inside temperature of input tube obtain control, prevent to print the phenomenon of silk cooling wire drawing under the low temperature, thereby the drawing wire effect of preventing of shower nozzle has obtained the improvement.
2. This 3D printer pumpback prevents drawing wire subassembly based on fused deposition, through the squeezing action of printing the silk, thereby make the outside dielectric plate of regulating plate, in the inside motion of regulation storehouse, thereby make positive electrode plate and negative electrode plate just increase to the area, dielectric constant epsilon increases promptly, the electric capacity C of positive electrode plate and negative electrode plate increases this moment, thereby make the inside contact of controller, under the effect of electric current, the contact is closed, thereby make the inside hot-blast in the storehouse that adjusts the temperature, blow in the input tube inside, thereby make the printing silk can be at the inside maintenance temperature of input tube, thereby reduce the appearance of the wire drawing condition.
3. This 3D printer pumpback prevents drawing wire subassembly based on fused deposition, under the combined action through stripper plate and regulation head cooperation spring, make to print the silk and received control at the inside removal diameter of input tube, and then make and prevent that drawing wire mechanism control self-adaptation adjusts the skew degree of printing the silk to the messenger prints the effect and has obtained the improvement, thereby has improved the quality that 3D printed.
Drawings
FIG. 1 is a schematic view of the connection of the anti-wiredrawing mechanism of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is an enlarged schematic view of a portion B in fig. 1.
Fig. 4 is an enlarged schematic structural view of a portion C in fig. 1.
FIG. 5 is a schematic view of the connection of the adaptive securing mechanism of the present invention.
FIG. 6 is a schematic connection diagram of the electromagnetic temperature adjustment mechanism of the present invention.
In the figure: 1. an anti-stringing mechanism; 2. an input tube; 3. a spray head; 4. a regulating bin; 5. a negative electrode plate; 6. a positive electrode plate; 7. an adjusting plate; 8. a telescopic block; 9. adjusting a rod; 10. a telescopic rod; 11. a pressing plate; 12. a connecting rod; 13. a groove; 14. sliding the bin; 15. a movable rod; 16. a spring; 17. an adjustment head; 18. a temperature adjusting bin; 19. a controller; 20. a contact; 21. a wire; 22. a fan; 23. an electromagnetic plate; 24. an electromagnetic coil.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a 3D printer withdrawal anti-drawing assembly based on fused deposition comprises an anti-drawing mechanism 1, an input pipe 2 fixedly connected to the middle of the anti-drawing mechanism 1, a nozzle 3 fixedly connected to the bottom of the input pipe 2, an adjusting bin 4 fixedly connected to the left side and the right side of the nozzle 3, a negative electrode plate 5 fixedly connected to the top of the adjusting bin 4, a positive electrode plate 6 fixedly connected to the bottom of the negative electrode plate 5, and the positive electrode plate 6 movably connected to a telescopic block 8 through an adjusting plate 7.
The top swing joint of flexible piece 8 has regulation pole 9, the top swing joint of adjusting pole 9 has telescopic link 10, the top fixedly connected with stripper plate 11 of telescopic link 10, the equal swing joint in the left and right sides of flexible piece 8 has connecting rod 12, the left and right sides of connecting rod 12 all is equipped with recess 13, the storehouse 14 is slided to the outside fixedly connected with of recess 13, the inside swing joint of the storehouse 14 that slides has movable rod 15, the top fixedly connected with spring 16 of movable rod 15, the head 17 is adjusted to the top fixedly connected with of spring 16.
The wire drawing prevention mechanism 1 is fixedly connected with a temperature regulation bin 18 in the inner part, a controller 19 is fixedly connected with the bottom of the temperature regulation bin 18, a contact 20 is movably connected in the controller 19, the top of the controller 19 is electrically connected with a fan 22 through a lead 21, an electromagnetic plate 23 is fixedly connected with the top of the fan 22, and an electromagnetic coil 24 is fixedly connected with the outer side of the electromagnetic plate 23.
Wherein:
a. the regulating bins 4 on the left side and the right side are symmetrically distributed about the central line of the input pipe 2, the negative electrode plates 5 and the positive electrode plates 6 are symmetrically distributed about the central line of the regulating bins 4, and the current directions inside the negative electrode plates 5 and the positive electrode plates 6 are opposite, so that the temperature inside the spray head 3 can be controlled by the anti-wire-drawing mechanism 1 conveniently, and the wire-drawing situation is reduced.
b. The inner diameter of the adjusting bin 4 is matched with the diameter of the adjusting plate 7, a dielectric plate is fixedly connected to the outside of the adjusting plate 7, and the adjusting plate 7 is made of an insulating material, so that the adjusting plate 7 can adjust the current inside the controller 19.
c. The bottom of flexible piece 8 is equipped with the slider, and flexible piece 8 is through setting up slider and the guide rail swing joint in its bottom, and the equal fixedly connected with slider in the left and right sides of flexible piece 8 to be convenient for flexible piece 8 can be reciprocating motion under the extrusion of printing the silk.
d. The bottom of connecting rod 12 is equipped with the slider, and connecting rod 12 passes through slider and recess 13 swing joint, and the diameter of slider and recess 13's diameter phase-match to be convenient for flexible piece 8 drives the motion of movable rod 15, thereby the skew degree of silk is printed in the control.
e. The diameter of the sliding bin 14 is matched with that of the movable rod 15, the sliding bins 14 are symmetrically distributed about the center line of the telescopic block 8, and the length of the movable rod 15 is smaller than that of the telescopic block 8, so that the movable rod 15 can freely move in the sliding bin 14.
f. The temperature adjusting chambers 18 are symmetrically distributed about the center line of the telescopic block 8, the controller 19 is movably connected with the contacts 20 through the springs 16, and a gap is arranged between the left contact 20 and the right contact 20, so that when the capacitance is changed, the current passing through the electromagnetic coil 24 and the inside of the fan 22 can be controlled.
Capacitance determination formula:
C＝εS/4πkd
wherein:
ε is a dielectric constant;
s is the opposite area of the two electrode plates of the capacitor;
d is the distance between the two polar plates;
k is an electrostatic constant.
According to the invention, the moving distance of the dielectric plate outside the adjusting plate 7 in the adjusting bin 4 is adjusted, so that the facing area between the positive electrode plate 6 and the negative electrode plate 5 is influenced, the current in the controller 19 is influenced, the current in the temperature adjusting bin 18 can be controlled, the heating effect of the electromagnetic coil 24 and the running speed of the fan 22 can be controlled, the temperature in the input pipe 2 is controlled, the phenomenon of cooling and wire drawing of a printing wire at a low temperature is prevented, and the wire drawing prevention effect of the nozzle 3 is improved.
Wherein the normal working state of the wire drawing prevention mechanism 1 is as follows:
when the printing wire is transported in the input pipe 2, the extrusion plate 11 moves outwards under the extrusion of the printing wire, so that the dielectric plate outside the adjusting plate 7 moves in the adjusting bin 4, so that the facing area of the positive electrode plate 6 and the negative electrode plate 5 is increased, namely the dielectric constant epsilon is increased, at the moment, the capacitance C of the positive electrode plate 6 and the negative electrode plate 5 is increased, so that the contact 20 inside the controller 19 is closed in contact under the action of current, so that hot air inside the temperature adjusting bin 18 is blown into the input pipe 2, and the printing wire can maintain the temperature inside the input pipe 2, so that the occurrence of wire drawing is reduced.
When the printing wires are reduced, the extrusion plate 11 and the adjusting head 17 can move inwards under the action of the spring 16, so that the moving diameter of the printing wires in the input pipe 2 is controlled, the wire-drawing-preventing mechanism 1 controls the self-adaptive adjustment of the deviation degree of the printing wires, the printing effect is improved, and the 3D printing quality is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a 3D printer pumpback prevents drawing wire subassembly based on fused deposition, includes prevents drawing wire mechanism (1), its characterized in that: the wire drawing prevention mechanism is characterized in that an input pipe (2) is fixedly connected to the middle of the wire drawing prevention mechanism (1), a spray head (3) is fixedly connected to the bottom of the input pipe (2), adjusting bins (4) are fixedly connected to the left side and the right side of the spray head (3), negative electrode plates (5) are fixedly connected to the tops of the adjusting bins (4), positive electrode plates (6) are fixedly connected to the bottoms of the negative electrode plates (5), the positive electrode plates (6) are movably connected with telescopic blocks (8) through adjusting plates (7), adjusting rods (9) are movably connected to the tops of the telescopic blocks (8), telescopic rods (10) are movably connected to the tops of the adjusting rods (9), extrusion plates (11) are fixedly connected to the tops of the telescopic rods (10), connecting rods (12) are movably connected to the left side and the right side of the telescopic blocks (8), grooves (13) are arranged on the left side and, the inside swing joint of smooth storehouse (14) has movable rod (15), the top fixedly connected with spring (16) of movable rod (15), the top fixedly connected with of spring (16) adjusts head (17), the inside fixedly connected with of preventing wire drawing mechanism (1) storehouse (18) that adjusts the temperature, the bottom fixedly connected with controller (19) in storehouse (18) that adjusts the temperature, the inside swing joint of controller (19) has contact (20), wire (21) and fan (22) electricity are passed through to the top of controller (19) are connected, the top fixedly connected with electromagnetic plate (23) of fan (22), the outside fixedly connected with solenoid (24) of electromagnetic plate (23).
2. The fused deposition-based 3D printer pullback wire-pull-prevention assembly of claim 1, wherein: the adjusting bins (4) on the left side and the right side are symmetrically distributed about the center line of the input pipe (2), and the negative electrode plates (5) and the positive electrode plates (6) are symmetrically distributed about the center line of the adjusting bins (4).
3. The fused deposition-based 3D printer pullback wire-pull-prevention assembly of claim 1, wherein: the inner diameter of the adjusting bin (4) is matched with the diameter of the adjusting plate (7), the outer portion of the adjusting plate (7) is fixedly connected with a dielectric plate, and the adjusting plate (7) is made of insulating materials.
4. The fused deposition-based 3D printer pullback wire-pull-prevention assembly of claim 1, wherein: the bottom of the telescopic block (8) is provided with a slide block, and the telescopic block (8) is movably connected with the guide rail through the slide block arranged at the bottom of the telescopic block.
5. The fused deposition-based 3D printer pullback wire-pull-prevention assembly of claim 1, wherein: the bottom of connecting rod (12) is equipped with the slider, and connecting rod (12) pass through slider and recess (13) swing joint, and the diameter of slider and the diameter phase-match of recess (13).
6. The fused deposition-based 3D printer pullback wire-pull-prevention assembly of claim 1, wherein: the diameter of the sliding bin (14) is matched with that of the movable rod (15), and the sliding bins (14) are symmetrically distributed around the center line of the telescopic block (8).
7. The fused deposition-based 3D printer pullback wire-pull-prevention assembly of claim 1, wherein: the temperature adjusting chambers (18) are symmetrically distributed about the center line of the telescopic block (8), and the controller (19) is movably connected with the contact (20) through a spring (16).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011195565.1A CN112428582A (en) | 2020-10-30 | 2020-10-30 | 3D printer pumpback prevents drawing wire subassembly based on fused deposition |
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| CN202011195565.1A CN112428582A (en) | 2020-10-30 | 2020-10-30 | 3D printer pumpback prevents drawing wire subassembly based on fused deposition |
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Cited By (2)
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| CN113386352A (en) * | 2021-05-27 | 2021-09-14 | 张改莲 | 3D printer |
| CN115056491A (en) * | 2022-06-09 | 2022-09-16 | 西安增材制造国家研究院有限公司 | Electrical control system and method for nonmetal fused deposition material increase and decrease 3D printing equipment |
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| CN115056491A (en) * | 2022-06-09 | 2022-09-16 | 西安增材制造国家研究院有限公司 | Electrical control system and method for nonmetal fused deposition material increase and decrease 3D printing equipment |
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