CN109249613B - Three-dimensional printer - Google Patents
Three-dimensional printer Download PDFInfo
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- CN109249613B CN109249613B CN201811388581.5A CN201811388581A CN109249613B CN 109249613 B CN109249613 B CN 109249613B CN 201811388581 A CN201811388581 A CN 201811388581A CN 109249613 B CN109249613 B CN 109249613B
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- 238000007639 printing Methods 0.000 claims abstract description 128
- 238000001125 extrusion Methods 0.000 claims abstract description 59
- 239000007921 spray Substances 0.000 claims abstract description 38
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 12
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 32
- 230000003139 buffering effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 210000003437 trachea Anatomy 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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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
- B29C64/10—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
- 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
- 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
-
- 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
-
- 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)
- Ink Jet (AREA)
Abstract
The invention relates to a three-dimensional printer which comprises a printing mechanism, wherein the printing mechanism comprises a supporting frame, a printing spray head, two extrusion units and two air injection units, each extrusion unit comprises a side rod, a second driving motor, an eccentric wheel, a contact plate, a side plate, a slide rod, a buffer unit and two first springs, in order to enable the buffer unit to have certain buffer force and prevent the buffer unit from damaging the shape of a printed object when the buffer unit extrudes a printing layer, the buffer unit comprises a buffer plate, an extrusion plate and two second springs, the two second springs are respectively arranged at two ends of the extrusion plate, and the buffer plate is fixed at the bottom end of the slide rod and is connected with the extrusion plate through the second springs. The invention enables the printing layers to be tightly connected, and avoids the problems of layer separation and incision.
Description
The patent application of the invention aims at the following application numbers: 201710419217X, the filing date of the original application is: 2017-06-06, the name of invention and creation is: an intelligent 3D printer without the problems of layer separation and incision.
Technical Field
The invention relates to the field of 3D printing equipment, in particular to a three-dimensional printer.
Background
The printing principle of the 3D printer is to print and superpose layer by layer to finally form an object, and therefore, it is necessary to tightly bond each layer of the sample during printing, otherwise, the object may have the problem of layer separation and cut, especially, in order to accelerate the printing efficiency, a user usually adopts a method of increasing the layer height (layer thickness) value, but in this way, connection between layers is loosened, separation and cut are generated, in order to avoid this, part of the printing may tightly connect a new layer and an old layer through extrusion of a printing nozzle, but this way also causes the nozzle to be too close to the printing layer, so that the printing material cannot be extruded from the nozzle, resulting in unsmooth printing, and furthermore, during printing, the temperature of the material inside the nozzle is high, but when the nozzle is extruded, the material is easily solidified due to sudden cooling, so that the new printing layer cannot be tightly connected with the old printing layer, resulting in the occurrence of layer separation and incision phenomena.
Disclosure of Invention
1. Technical problem to be solved by the invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, a three-dimensional printer is provided.
2. Technical scheme
The technical scheme adopted by the invention for solving the technical problems is as follows: an intelligent 3D printer without layer separation and incision problems comprises a base, a controller, a printing platform, a top plate, a lifting plate, a plane moving mechanism, a material disc, a wire feeding pipe, a printing mechanism, a lifting mechanism and two support columns, wherein the controller is fixed on the base, the printing platform is fixed above the controller, the two support columns are respectively arranged on two sides of the printing platform, the bottom ends of the support columns are fixed on the base, the top plate is erected on the two support columns, the lifting plate is arranged between the two support columns, the plane moving mechanism is arranged below the lifting plate and is in transmission connection with the printing mechanism, the material disc is fixed on the top plate and is connected with the printing mechanism through the wire feeding pipe, and the lifting mechanism is in transmission connection with the lifting plate;
the printing mechanism comprises a supporting frame, a printing nozzle, two extrusion units and two air injection units, wherein the supporting frame is arranged above the printing nozzle, the vertical section of the supporting frame is U-shaped, the opening of the supporting frame is downward, two ends of the supporting frame are respectively connected with the two extrusion units, and the two extrusion units are respectively arranged on two sides of the printing nozzle;
the extrusion unit comprises a side rod, a second driving motor, an eccentric wheel, a contact plate, a side plate, a sliding rod, a buffer unit and two first springs, wherein the second driving motor is fixedly connected with the printing spray head through the side rod and is in transmission connection with the eccentric wheel;
the air injection unit comprises a direction adjusting unit, a spray pipe, a first air pipe, an air inlet pipe, a second air pipe and an air pump, the direction adjusting unit is arranged below the side plate and is in transmission connection with the spray pipe, the air inlet pipe is arranged at the top end of the printing nozzle, the second air pipe is arranged in the printing nozzle, the air pump is fixed on the printing nozzle and is communicated with the spray pipe through the first air pipe, and the air pump is communicated with the air inlet pipe through the second air pipe.
Preferably, in order to drive the lifting plate to move up and down to realize layer-by-layer printing, the lifting mechanism comprises two lifting units, the number of the lifting units is equal to that of the pillars and corresponds to one another, each lifting unit comprises a first driving motor, a driving wheel, a pull wire, a sliding ring and a pull ring, the first driving motor is fixed on the top plate and is in transmission connection with the driving wheel, one end of the pull wire is arranged on the driving wheel, the other end of the pull wire is fixed on the pull ring, the pull ring is fixed on the sliding ring, and the sliding ring is sleeved on the pillars and is fixedly connected with the lifting plate.
Preferably, in order to prevent the wire from being worn on the top plate, the lifting unit further includes a guide unit disposed between the first driving motor and the pull ring, the guide unit includes an inclined rod and a guide wheel, the guide wheel is disposed at one end of the inclined rod, and the other end of the inclined rod is fixed on the top plate.
Preferably, in order to fixedly connect the printing nozzle and ensure the stability of the structure of the printing mechanism, a fixing rod is arranged between the supporting frame and the printing nozzle, and the top end of the printing nozzle is fixedly connected with the supporting frame through the fixing rod.
Preferably, in order to enable the buffer unit to have a certain buffer force and prevent the buffer unit from damaging the shape of the printed object when the buffer unit extrudes the printing layer, the buffer unit comprises a buffer plate, an extrusion plate and two second springs, the two second springs are respectively arranged at two ends of the extrusion plate, and the buffer plate is fixed at the bottom end of the sliding rod and is connected with the extrusion plate through the second springs.
Preferably, in order to adjust the angle of the nozzle, the direction adjusting unit includes a third driving motor, a buffer block, a third driving shaft, a moving block, a connecting rod and a sleeve ring, the third driving motor and the buffer block are both fixed below the side plate, the buffer block is hinged to the top end of the nozzle, the third driving shaft is arranged between the third driving motor and the buffer block, the third driving motor is in transmission connection with the third driving shaft, an external thread is arranged on the periphery of the third driving shaft, the moving block is sleeved on the third driving shaft and hinged to the sleeve ring through the connecting rod, the sleeve ring is sleeved on the nozzle, an internal thread is arranged in the moving block, and the internal thread in the moving block is matched with the external thread on the third driving shaft.
Preferably, in order to increase the length of the second air pipe, the air can be sufficiently heated in the second air pipe, and the second air pipe is spirally arranged in the printing nozzle along the inner wall of the printing nozzle.
Preferably, in order to facilitate input and output of the printing signal and facilitate control and observation of printing by a user, the controller is provided with a display screen, a loudspeaker, a plurality of USB interfaces and a plurality of control keys.
Preferably, in order to provide a good human-computer interface, the display screen is a liquid crystal display screen.
Preferably, in order to facilitate movement of the device, universal wheels are provided below the base.
In the 3D printing operation, in order to prevent the occurrence of layer separation and notch phenomena, in a printing mechanism, a printing layer which is just completed is extruded by extrusion units on two sides of a printing nozzle, so that a new side is tightly connected with the printing layer which is completed before, and the separation and notch phenomena between layers are prevented, in the extrusion units, a second driving motor drives an eccentric wheel to rotate, as a first spring is in a compression state, a contact plate is always tightly attached to the eccentric wheel, in the rotation process of the eccentric wheel, the contact plate moves up and down according to the angle of the eccentric wheel, a buffer unit moves up and down through a slide rod, in the buffer unit, the extrusion plate moves up and down, the printing layer is extruded when the extrusion plate moves down, and as a second spring is arranged between the extrusion plate and the buffer plate, the phenomenon that the shape of the printing layer is changed due to overlarge extrusion force is avoided when the extrusion plate extrudes, the printed object is deformed, and the printing layers are tightly connected through extrusion of the extrusion plate, so that the problems of layer separation and incision are avoided. This intelligent 3D printer of no layer separation and incision problem makes the stripper plate reciprocate the extrusion through the extrusion unit and prints the layer, makes each print zonulae occludens between the layer, avoids appearing layer separation and incision problem.
In order to prevent the material on the printing layer from being cooled and solidified during extrusion, hot air is sprayed to the printing layer through air injection units on two sides of the printing nozzle in the printing mechanism, so that the printing layer is kept at a certain temperature, and the extrusion of the layer is facilitated. In the jet-propelled unit, by air pump suction air, the air passes through the intake pipe and gets into the second trachea, and the second trachea is the spiral in printing the shower nozzle shape, makes the air can be fully heated in the second trachea like this, then passes through the second trachea by the air pump and carries hot-air to the spray tube in to by the spray tube blowout, make the hot-air contact print the layer, avoid printing the layer and receive the cold solidification. Meanwhile, the angle of the spray pipe is adjusted by the direction adjusting unit, so that the spray pipe can spray air to all places of the printing layer, the third driving shaft is driven by the third driving motor to rotate in the direction adjusting unit, the moving block moves along the direction of the third driving shaft, the lantern ring is pulled by the connecting rod, the angle of the spray pipe is adjusted, hot air can be sprayed to all places of the printing layer, the temperature of the printing layer is kept, and extrusion is facilitated. This intelligent 3D printer of no layer separation and incision problem keeps the temperature of printing the layer through jet-propelled unit to printing layer blowout hot-air everywhere, prevents to print the layer and receives the cold solidification, and the extrusion unit extrusion of being convenient for to layer separation and notched problem have further been avoided.
3. Advantageous effects
The intelligent 3D printer without the layer separation and incision problems has the advantages that the extrusion plate moves up and down to extrude the printing layers through the extrusion unit, all the printing layers are tightly connected, the layer separation and incision problems are avoided, hot air is sprayed to all the printing layers through the air spraying unit, the temperature of the printing layers is kept, the printing layers are prevented from being cooled and solidified, the extrusion of the extrusion unit is facilitated, and the layer separation and incision problems are further avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of the structure of the intelligent 3D printer of the present embodiment without the problem of layer separation and notching;
FIG. 2 is a schematic diagram of the printing mechanism of the intelligent 3D printer of the present embodiment without the problems of layer separation and notching;
FIG. 3 is a schematic diagram of the structure of the pressing unit of the intelligent 3D printer of the present embodiment without the problem of layer separation and incision;
fig. 4 is a schematic structural diagram of an air injection unit of the intelligent 3D printer of the present embodiment without the problem of layer separation and incision;
FIG. 5 is a schematic structural diagram of a direction-adjusting unit of the intelligent 3D printer without layer separation and incision problems according to the embodiment;
in the figure: 1. the printing device comprises a base, 2, universal wheels, 3, a controller, 4, a display screen, 5, a loudspeaker, 6, a USB interface, 7, a control button, 8, a printing platform, 9, a support, 10, a sliding ring, 11, a material disc, 12, a wire feeding pipe, 13, a printing mechanism, 14, a first driving motor, 15, a driving wheel, 16, a wire, 17, a diagonal rod, 18, a guide wheel, 19, a pull ring, 20, a lifting plate, 21, a plane moving mechanism, 22, a supporting frame, 23, a fixed rod, 24, a printing nozzle, 25, an extrusion unit, 26, an air injection unit, 27, a side rod, 28, a second driving motor, 29, an eccentric wheel, 30, a contact plate, 31, a side plate, 32, a sliding rod, 33, a limiting ring, 34, a buffer plate, 35, a second spring, 36, an extrusion plate, 37, a first spring, 38, a direction adjusting unit, 39, an injection pipe, 40, a first air inlet pipe, 41, 42, a second air pipe, 43. air pump, 44, third driving motor, 45, buffer block, 46, third driving shaft, 47, moving block, 48, connecting rod, 49, collar, 50 and top plate.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1 to 5, an intelligent 3D printer without layer separation and incision problems comprises a base 1, a controller 3, a printing platform 8, a top plate 50, a lifting plate 20, a plane moving mechanism 21, a material tray 11, a wire feeding pipe 12, a printing mechanism 13, a lifting mechanism and two supports 9, the controller 3 is fixed on the base 1, the printing platform 8 is fixed above the controller 3, the two support columns 9 are respectively arranged at two sides of the printing platform 8, the bottom ends of the struts 9 are fixed on the base 1, the top plate 50 is erected on the two struts 9, the lifting plate 20 is arranged between the two pillars 9, the plane moving mechanism 21 is arranged below the lifting plate 20 and is in transmission connection with the printing mechanism 13, the material tray 11 is fixed on the top plate 50 and is connected with the printing mechanism 13 through the wire feeding pipe 12, and the lifting mechanism is in transmission connection with the lifting plate 20;
the printing mechanism 13 comprises a supporting frame 22, a printing nozzle 24, two extrusion units 25 and two air injection units 26, wherein the supporting frame 22 is arranged above the printing nozzle 24, the vertical section of the supporting frame 22 is U-shaped and has a downward opening, two ends of the supporting frame 22 are respectively connected with the two extrusion units 25, and the two extrusion units 25 are respectively arranged at two sides of the printing nozzle 24;
the extrusion unit 25 comprises a side rod 27, a second driving motor 28, an eccentric wheel 29, a contact plate 30, a side plate 31, a sliding rod 32, a buffer unit and two first springs 37, the second driving motor 28 is fixedly connected with the printing spray head 24 through the side rod 27 and is in transmission connection with the eccentric wheel 29, the contact plate 30 is arranged below the eccentric wheel 29, a limit ring 33 is arranged on the side plate 31, the limit ring 33 is sleeved on the sliding rod 32, the top end of the sliding rod 32 is fixed on the side rod 27, the bottom end of the sliding rod 32 is connected with the buffer unit, the two first springs 37 are respectively arranged on two sides of the sliding rod 32, and the side rod 27 is connected with the side plate 31 through the first springs 37, and the first springs 37 are in a compressed state;
the air injection unit 26 comprises a direction adjusting unit 38, a spray pipe 39, a first air pipe 40, an air inlet pipe 41, a second air pipe 42 and an air pump 43, the direction adjusting unit 38 is arranged below the side plate 31 and is in transmission connection with the spray pipe 39, the air inlet pipe 41 is arranged at the top end of the printing spray head 24, the second air pipe 42 is arranged in the printing spray head 24, the air pump 43 is fixed on the printing spray head 24, the air pump 43 is communicated with the spray pipe 39 through the first air pipe 40, and the air pump 43 is communicated with the air inlet pipe 41 through the second air pipe 42.
Preferably, in order to drive the lifting plate 20 to move up and down to realize layer-by-layer printing, the lifting mechanism comprises two lifting units, the number of the lifting units is equal to that of the pillars 9 and corresponds to one another, each lifting unit comprises a first driving motor 14, a driving wheel 15, a pull wire 16, a sliding ring 10 and a pull ring 19, the first driving motor 14 is fixed on the top plate 50 and is in transmission connection with the driving wheel 15, one end of the pull wire 16 is arranged on the driving wheel 15, the other end of the pull wire 16 is fixed on the pull ring 19, the pull ring 19 is fixed on the sliding ring 10, and the sliding ring 10 is sleeved on the pillars 9 and is fixedly connected with the lifting plate 20.
Preferably, in order to prevent the wire 16 from being worn on the top plate 50, the lifting unit further includes a guide unit disposed between the first driving motor 14 and the wire 19, the guide unit including a diagonal bar 17 and a guide wheel 18, the guide wheel 18 being disposed at one end of the diagonal bar 17, and the other end of the diagonal bar 17 being fixed on the top plate 50.
Preferably, in order to fixedly connect the print head 24 and ensure the structural stability of the printing mechanism 13, a fixing rod 23 is arranged between the supporting frame 22 and the print head 24, and the top end of the print head 24 is fixedly connected with the supporting frame 22 through the fixing rod 23.
Preferably, in order to provide a certain buffering force to the buffering unit and prevent the buffering unit from damaging the shape of the printed object when the buffering unit presses the printing layer, the buffering unit includes a buffering plate 34, a pressing plate 36 and two second springs 35, the two second springs 35 are respectively disposed at two ends of the pressing plate 36, and the buffering plate 34 is fixed at the bottom end of the sliding rod 32 and is connected with the pressing plate 36 through the second springs 35.
Preferably, in order to adjust the angle of the nozzle 39 and to spray air around the printing layer, the direction adjusting unit 38 includes a third driving motor 44, a buffer block 45, a third driving shaft 46, a moving block 47, a connecting rod 48 and a collar 49, the third driving motor 44 and the buffer block 45 are both fixed below the side plate 31, the buffer block 45 is hinged with the top end of the spray pipe 39, the third driving shaft 46 is arranged between the third driving motor 44 and the buffer block 45, the third driving motor 44 is in transmission connection with the third driving shaft 46, the outer periphery of the third driving shaft 46 is provided with an external thread, the moving block 47 is sleeved on the third driving shaft 46 and is hinged with the lantern ring 49 through the connecting rod 48, the lantern ring 49 is sleeved on the spray pipe 39, internal threads are arranged in the moving block 47, and the internal threads in the moving block 47 are matched with the external threads on the third driving shaft 46.
Preferably, in order to increase the length of the second air pipe 42, so that the air can be sufficiently heated in the second air pipe 42, the second air pipe 42 is spirally disposed in the print head 24 along the inner wall of the print head 24.
Preferably, in order to facilitate input and output of a printing signal and facilitate a user to control and observe printing, the controller 3 is provided with a display screen 4, a speaker 5, a plurality of USB interfaces 6 and a plurality of control keys 7.
Preferably, the display 4 is a liquid crystal display in order to provide a good human-computer interface.
Preferably, a universal wheel 2 is provided under the base 1 to facilitate movement of the device.
In the 3D printing operation, in order to prevent the occurrence of layer separation and cut, in the printing mechanism 13, the just completed printing layer is extruded by the extruding units 25 at both sides of the printing nozzle 24, so that a new side is tightly connected with the previously completed printing layer, and the separation and cut between layers are prevented, in the extruding unit 25, the second driving motor 28 drives the eccentric wheel 29 to rotate, because the first spring 37 is in a compressed state, the contact plate 30 is always attached to the eccentric wheel 29, during the rotation of the eccentric wheel 29, the contact plate 30 moves up and down according to the angle of the eccentric wheel 29, the sliding rod 32 moves up and down the buffer unit, in the buffer unit, the extruding plate 36 moves up and down, the printing layer is extruded when the extruding plate 36 moves down, because the second spring 35 is arranged between the extruding plate 36 and the buffer plate 34, the change of the shape of the printing layer caused by overlarge extruding force when the extruding plate 36 extrudes the printing layer is avoided, the printed object is deformed, and the printing layers are tightly connected through extrusion of the extrusion plate 36, so that the problems of layer separation and incision are avoided. This intelligent 3D printer of no layer separation and incision problem makes the extrusion board 36 reciprocate the extrusion through extrusion unit 25 and prints the layer, makes each print zonulae occludens between the layer, avoids appearing layer separation and incision problem.
In order to prevent the material on the printing layer from being cooled and solidified during extrusion, hot air is sprayed to the printing layer by the air spraying units 26 on both sides of the printing nozzle 24 in the printing mechanism 13, so that the printing layer is kept at a certain temperature, and the extrusion of the layer is facilitated. In the air injection unit 26, air is sucked by the air pump 43, the air enters the second air pipe 42 through the air inlet pipe 41, the second air pipe 42 is spiral in the printing nozzle 24, so that the air can be sufficiently heated in the second air pipe 42, and then the hot air is conveyed to the spray pipe 39 through the second air pipe 42 by the air pump 43 and is sprayed out of the spray pipe 39, so that the hot air contacts with the printing layer, and the printing layer is prevented from being cooled and solidified. Meanwhile, the angle of the spray pipe 39 is adjusted by the direction adjusting unit 38, so that the spray pipe 39 can spray air to all positions of the printing layer, in the direction adjusting unit 38, the third driving shaft 46 is driven by the third driving motor 44 to rotate, the moving block 47 moves along the direction of the third driving shaft 46, the sleeve ring 49 is pulled by the connecting rod 48, and therefore the angle of the spray pipe 39 is adjusted, hot air can be sprayed to all positions of the printing layer in an aligned mode, the temperature of the printing layer is kept, and extrusion is facilitated. This intelligent 3D printer of no layer separation and incision problem keeps printing the temperature on layer through jet-propelled unit 26 to printing layer blowout hot-air everywhere, prevents to print the layer and receives the cold solidification, and the extrusion unit 25 of being convenient for extrudes to and further avoided layer separation and notched problem.
Compared with the prior art, this intelligent 3D printer of no layer separation and incision problem makes the stripper plate 36 reciprocate the extrusion through extrusion unit 25 and prints the layer, make each print zonulae occludens between the layer, avoid appearing layer separation and incision problem, moreover, spout hot-air everywhere to printing the layer through jet-propelled unit 26, keep printing the temperature on layer, prevent to print the layer and receive the cold solidification, the extrusion unit 25 extrusion of being convenient for, thereby further avoided layer separation and notched problem.
Claims (5)
1. A three-dimensional printer is characterized by comprising a base (1), a controller (3), a printing platform (8), a top plate (50), a lifting plate (20), a plane moving mechanism (21), a material disc (11), a wire feeding pipe (12), a printing mechanism (13), a lifting mechanism and two pillars (9), wherein the controller (3) is fixed on the base (1), the printing platform (8) is fixed above the controller (3), the two pillars (9) are respectively arranged at two sides of the printing platform (8), the bottom ends of the pillars (9) are fixed on the base (1), the top plate (50) is erected on the two pillars (9), the lifting plate (20) is arranged between the two pillars (9), the plane moving mechanism (21) is arranged below the lifting plate (20) and is in transmission connection with the printing mechanism (13), the material disc (11) is fixed on the top plate (50) and is connected with the printing mechanism (13) through the wire feeding pipe (12), and the lifting mechanism is in transmission connection with the lifting plate (20);
the printing mechanism (13) comprises a supporting frame (22), a printing nozzle (24), two extrusion units (25) and two air injection units (26), wherein the supporting frame (22) is arranged above the printing nozzle (24), the vertical section of the supporting frame (22) is U-shaped and has a downward opening, two ends of the supporting frame (22) are respectively connected with the two extrusion units (25), and the two extrusion units (25) are respectively arranged on two sides of the printing nozzle (24);
the extrusion unit (25) comprises a side lever (27), a second driving motor (28), an eccentric wheel (29), a contact plate (30), a side plate (31), a slide bar (32), a buffer unit and two first springs (37), the second driving motor (28) is fixedly connected with the printing spray head (24) through a side rod (27) and is in transmission connection with an eccentric wheel (29), the contact plate (30) is arranged below the eccentric wheel (29), the side plate (31) is provided with a limit ring (33), the limiting ring (33) is sleeved on the sliding rod (32), the top end of the sliding rod (32) is fixed on the side rod (27), the bottom end of the sliding rod (32) is connected with the buffer unit, the two first springs (37) are respectively arranged at the two sides of the sliding rod (32), the side lever (27) is connected with the side plate (31) through a first spring (37), and the first spring (37) is in a compressed state;
the air injection unit (26) comprises a direction adjusting unit (38), a spray pipe (39), a first air pipe (40), an air inlet pipe (41), a second air pipe (42) and an air pump (43), the direction adjusting unit (38) is arranged below the side plate (31) and is in transmission connection with the spray pipe (39), the air inlet pipe (41) is arranged at the top end of the printing spray head (24), the second air pipe (42) is arranged in the printing spray head (24), the air pump (43) is fixed on the printing spray head (24), the air pump (43) is communicated with the spray pipe (39) through the first air pipe (40), and the air pump (43) is communicated with the air inlet pipe (41) through the second air pipe (42);
the lifting mechanism comprises two lifting units, the number of the lifting units is equal to that of the pillars (9) and corresponds to one another, each lifting unit comprises a first driving motor (14), a driving wheel (15), a pull wire (16), a sliding ring (10) and a pull ring (19), the first driving motor (14) is fixed on the top plate (50) and is in transmission connection with the driving wheel (15), one end of the pull wire (16) is arranged on the driving wheel (15), the other end of the pull wire (16) is fixed on the pull ring (19), the pull ring (19) is fixed on the sliding ring (10), and the sliding ring (10) is sleeved on the pillars (9) and is fixedly connected with the lifting plate (20);
the lifting unit further comprises a guide unit, the guide unit is arranged between the first driving motor (14) and the pull ring (19), the guide unit comprises an inclined rod (17) and a guide wheel (18), the guide wheel (18) is arranged at one end of the inclined rod (17), and the other end of the inclined rod (17) is fixed on the top plate (50);
a fixing rod (23) is arranged between the supporting frame (22) and the printing spray head (24), and the top end of the printing spray head (24) is fixedly connected with the supporting frame (22) through the fixing rod (23);
the buffer unit comprises a buffer plate (34), an extrusion plate (36) and two second springs (35), the two second springs (35) are respectively arranged at two ends of the extrusion plate (36), and the buffer plate (34) is fixed at the bottom end of the sliding rod (32) and is connected with the extrusion plate (36) through the second springs (35);
the direction adjusting unit (38) comprises a third driving motor (44), a buffer block (45), a third driving shaft (46), a moving block (47), a connecting rod (48) and a lantern ring (49), the third driving motor (44) and the buffer block (45) are fixed below the side plate (31), the buffer block (45) is hinged with the top end of the spray pipe (39), the third driving shaft (46) is arranged between the third driving motor (44) and the buffer block (45), the third driving motor (44) is in transmission connection with a third driving shaft (46), the periphery of the third driving shaft (46) is provided with external threads, the moving block (47) is sleeved on the third driving shaft (46) and is hinged with a lantern ring (49) through a connecting rod (48), the lantern ring (49) is sleeved on the spray pipe (39), the moving block (47) is internally provided with internal threads, the internal thread in the moving block (47) is matched with the external thread on the third driving shaft (46).
2. The three-dimensional printer according to claim 1, characterized in that said second air duct (42) is arranged helically inside the print head (24) along the inner wall of the print head (24).
3. The three-dimensional printer according to claim 1, characterized in that the controller (3) is provided with a display screen (4), a loudspeaker (5), a plurality of USB interfaces (6) and a plurality of control keys (7).
4. The three-dimensional printer according to claim 3, characterised in that said display screen (4) is a liquid crystal display screen.
5. The three-dimensional printer according to claim 1, characterized in that a universal wheel (2) is provided below said base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811388581.5A CN109249613B (en) | 2017-06-06 | 2017-06-06 | Three-dimensional printer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710419217.XA CN107214947B (en) | 2017-06-06 | 2017-06-06 | A kind of intelligent 3D printer of no layer separation and Notch Problems |
| CN201811388581.5A CN109249613B (en) | 2017-06-06 | 2017-06-06 | Three-dimensional printer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710419217.XA Division CN107214947B (en) | 2017-06-06 | 2017-06-06 | A kind of intelligent 3D printer of no layer separation and Notch Problems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109249613A CN109249613A (en) | 2019-01-22 |
| CN109249613B true CN109249613B (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710419217.XA Active CN107214947B (en) | 2017-06-06 | 2017-06-06 | A kind of intelligent 3D printer of no layer separation and Notch Problems |
| CN201811388583.4A Active CN109571935B (en) | 2017-06-06 | 2017-06-06 | Intelligent three-dimensional printer |
| CN201811388581.5A Expired - Fee Related CN109249613B (en) | 2017-06-06 | 2017-06-06 | Three-dimensional printer |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710419217.XA Active CN107214947B (en) | 2017-06-06 | 2017-06-06 | A kind of intelligent 3D printer of no layer separation and Notch Problems |
| CN201811388583.4A Active CN109571935B (en) | 2017-06-06 | 2017-06-06 | Intelligent three-dimensional printer |
Country Status (1)
| Country | Link |
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| CN (3) | CN107214947B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833476A (en) * | 2017-10-11 | 2018-03-23 | 深圳市晓控通信科技有限公司 | It is a kind of that there is warning function and be applicable the wide smart traffic signal lamps of crowd |
| US10759114B2 (en) * | 2017-12-29 | 2020-09-01 | Continuous Composites Inc. | System and print head for continuously manufacturing composite structure |
| CN108343917B (en) * | 2018-02-06 | 2020-12-04 | 浙江宏源灯具集团有限公司 | Intelligent LED street lamp with high illumination brightness suitable for humid weather |
| CN108943715B (en) * | 2018-06-22 | 2021-03-30 | 大族激光科技产业集团股份有限公司 | Liquid tank device, three-dimensional printing equipment with same and printing model separation method |
| CN109864163B (en) * | 2019-04-13 | 2022-03-01 | 深圳翱诺科技有限公司 | Chocolate 3D printer extrusion nozzle |
| CN110549619A (en) * | 2019-08-26 | 2019-12-10 | 台州职业技术学院 | Three-dimensional model driven flexible rapid manufacturing device and method |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140036285A (en) * | 2014-02-11 | 2014-03-25 | 김형진 | 3d printer cartridge and extruding equipment for (semi-)liquid material |
| JP2015202592A (en) * | 2014-04-11 | 2015-11-16 | セイコーエプソン株式会社 | Molding device |
| CN204019232U (en) * | 2014-08-20 | 2014-12-17 | 温州市瓯海恒利眼镜设备厂 | Cutter mechanism under the multi-angle straight line of picture frame processing machine |
| US10449692B2 (en) * | 2014-12-08 | 2019-10-22 | Tethon Corporation | Three-dimensional (3D) printing |
| CN105984133B (en) * | 2015-01-27 | 2019-02-12 | 常州市东科电子科技有限公司 | A kind of multi-functional 3D printing head |
| CN204471876U (en) * | 2015-01-27 | 2015-07-15 | 常州市东科电子科技有限公司 | A kind of 3D printing equipment manufacturing colored fine hair dress ornament |
| CN204604909U (en) * | 2015-01-27 | 2015-09-02 | 常州市东科电子科技有限公司 | A kind of multi-functional 3D printhead |
| MX2018001940A (en) * | 2015-08-21 | 2018-11-09 | Aprecia Pharmaceuticals LLC | Three-dimensional printing system and equipment assembly. |
| CN205097563U (en) * | 2015-11-20 | 2016-03-23 | 苏州光韵达光电科技有限公司 | Novel 3D (3 -dimentional) printer |
| CN205871232U (en) * | 2016-08-08 | 2017-01-11 | 南京增材制造研究院发展有限公司 | Take FDM formula 3D print head structure of induction heating function |
| CN106781845B (en) * | 2016-12-28 | 2018-12-21 | 湖南城市学院 | A kind of piano supplemental training device |
| CN106735221A (en) * | 2017-02-24 | 2017-05-31 | 广东工业大学 | A kind of laser-impact forges metal 3D printing composite manufacturing method and device |
-
2017
- 2017-06-06 CN CN201710419217.XA patent/CN107214947B/en active Active
- 2017-06-06 CN CN201811388583.4A patent/CN109571935B/en active Active
- 2017-06-06 CN CN201811388581.5A patent/CN109249613B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN109249613A (en) | 2019-01-22 |
| CN107214947B (en) | 2019-01-29 |
| CN107214947A (en) | 2017-09-29 |
| CN109571935B (en) | 2020-10-27 |
| CN109571935A (en) | 2019-04-05 |
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