CN106827499B - A kind of multi-functional 3D printing head - Google Patents

A kind of multi-functional 3D printing head Download PDF

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Publication number
CN106827499B
CN106827499B CN201710049252.7A CN201710049252A CN106827499B CN 106827499 B CN106827499 B CN 106827499B CN 201710049252 A CN201710049252 A CN 201710049252A CN 106827499 B CN106827499 B CN 106827499B
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nozzle
motor
conveying channel
printing head
multifunctional
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CN106827499A (en
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曹燕红
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Guangzhou Wangneng Product Design Co ltd
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Jiaxing Titanium Amine New Material Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—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
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)

Abstract

本发明涉及一种多功能3D打印头，包括散热机构、喷嘴以及设置在喷嘴上的出料机构、混合机构、切换机构和加热器，出料机构包括进料口、第一出料口和第一输送通道，混合机构包括第一电机、螺杆、第二出料口、第二输送通道和第三输送通道，切换机构包括第二电机、挡板和转轴，散热机构包括汇聚箱、风扇和散热组件，散热组件包括壳体和进料管，该多功能3D打印头中，集四个出料机构于一个喷嘴，该喷嘴可同时或者分时导入四种原料丝，原料丝可以经过出料机构熔化后喷出，也可以从出料机构进入混合机构后喷出，混合机构可以实现充分熔化原料后挤出，防止喷嘴堵塞，还可以同时混合多种颜色的原料丝，进行调色。

The invention relates to a multifunctional 3D printing head, comprising a heat dissipation mechanism, a nozzle, a discharging mechanism, a mixing mechanism, a switching mechanism and a heater arranged on the nozzle. The discharging mechanism includes a feeding port, a first discharging port and a first discharging port. A conveying channel, the mixing mechanism includes a first motor, a screw, a second discharge port, a second conveying channel and a third conveying channel, the switching mechanism includes a second motor, a baffle and a rotating shaft, and the heat dissipation mechanism includes a convergence box, a fan and a heat sink The component, the heat dissipation component includes a shell and a feeding pipe. In this multi-functional 3D printing head, four discharge mechanisms are integrated into one nozzle. The nozzle can introduce four kinds of raw material filaments at the same time or in time, and the raw material filaments can pass through the discharge mechanism. After melting, it can be sprayed out, or it can be sprayed from the discharge mechanism into the mixing mechanism. The mixing mechanism can fully melt the raw material and then extrude it to prevent the nozzle from clogging.

Description

A kind of multi-functional 3D printing head
Technical field
The present invention relates to the field of 3D printing equipment, in particular to a kind of multi-functional 3D printing head.
Background technique
With the development of science and technology, 3D printing technique has been applied to multiple necks such as jewelry, footwear, industrial design, automobile In domain, a kind of machine of 3D printer, that is, rapid prototyping technology, it is based on a digital model file, with powdered gold Belong to or the adhesive materials such as plastics, constructs the technology of object by layer-by-layer printing.
3D printing spray head is the critical component of 3D printer at present, it is arranged in stable walking mechanism, and being used for will be former Material is melted and is squeezed out.Existing 3D printer spray head mostly uses greatly a kind of mode of corresponding nozzle of raw material, sprays in printing Switching between head needs to waste many times, especially causes for disadvantage 3D printing very slow for print speed itself Life, secondly, the nozzle structure of multiple nozzles is complicated, space hold is big, and structure is not easy to stablize, to influence to print accuracy.
3D printing spray head is that spray head is easy blocking there are also a very distinct issues at present.
Summary of the invention
The technical problem to be solved by the present invention is for overcome the deficiencies in the prior art, providing a kind of multi-functional 3D printing Head.
It is of the present invention solve the problems, such as used by technical solution be: a kind of multi-functional 3D printing head, including cooling mechanism, nozzle And discharging mechanism, mixed organization, switching mechanism and heater on nozzle are set；
The shape of the nozzle is truncated cone-shaped, and the area in the upper end of nozzle face is greater than the area of lower end surface, the heat dissipation The top of nozzle is arranged in mechanism, and the cooling mechanism is connected to discharging mechanism, and there are four the discharging mechanisms, each discharging mechanism It is evenly distributed on the periphery of nozzle-axis, the mixed organization is located on the axis of nozzle, the discharging mechanism and mixed organization Connection, there are four the switching mechanisms, and the side of discharging mechanism is arranged in the switching mechanism, and the nozzle is equipped with several logical Hole, each through-hole is horizontally disposed, and the heater has several, and the heater is located in through-hole；
The discharging mechanism includes feed inlet, the first discharge port and the first transfer passage, and the feed inlet is arranged in nozzle Upper surface, first discharge port is arranged in the lower end surface of nozzle, and the feed inlet is gone out by the first conveyance conduit with first Material mouth connection；
The mixed organization includes first motor, screw rod, the second discharge port, the second transfer passage and third transfer passage, Second transfer passage is vertically provided at the inside of nozzle, and second discharge port is arranged in the lower end surface of nozzle, and described Two discharge ports and the second transfer passage are respectively positioned on the axis of nozzle, and the bottom of second transfer passage and the second discharge port connect Logical, first transfer passage is connected to by third transfer passage with the second transfer passage, and the first motor is arranged in nozzle Upper surface, the output shaft of the first motor is arranged straight down, and the screw rod is vertically arranged, and it is defeated that the screw rod is located at second It send in channel, the output shaft and screw coaxial of the first motor are arranged, and the first motor is connect with screw drive；
The switching mechanism includes the second motor, baffle and shaft, and the cross section of first transfer passage is circle, institute Stating baffle is disc, and the baffle is matched with the first transfer passage, and the shaft is arranged in the first transfer passage, described turn Axis is vertical with the first transfer passage to be connect, and the shaft is slidably connected with the first transfer passage, and the baffle passes through shaft and the One transfer passage is hinged, and second motor is arranged on the outer wall of nozzle, and second motor and shaft are coaxially disposed, described Second motor is connect with rotating shaft transmission, and the switching mechanism is located at the lower section of third transfer passage；
The cooling mechanism includes convergence case, fan and radiating subassembly, and there are four the radiating subassemblies, and each radiating subassembly is equal It is connected to convergence case, the upper surface of convergence case is arranged in the fan, and the air inlet of the fan is connected to convergence case；
The radiating subassembly includes shell and feed pipe, and the upper surface of the shell is equipped with the first opening, the shell Lower end surface is equipped with the second opening, and the first opening and the second opening are connected to by feed pipe, and the feed pipe is connected by screw thread Mode is connect to be connected to feed inlet.
Preferably, in order to radiate to feed pipe, prevent the raw material thread in feed pipe from melting in advance to influence to feed, institute The outer wall for stating feed pipe is equipped with several radiating fins.
Preferably, in order to improve the heat-sinking capability of radiating fin, the making material of the radiating fin is aluminium alloy.
Preferably, in order to monitor and control the heating temperature of nozzle, the nozzle is equipped with temperature sensor.
Preferably, in order to improve the temperature measurement range of temperature sensor, the temperature sensor is electric thermo-couple temperature Sensor.
Preferably, motor and nozzle directly contact and hot transmitting occur in order to prevent, the first motor and the second electricity Machine passes through thermal insulation board and connect with nozzle.
Preferably, in order to improve the stability of thermal insulation board and heat-proof quality, the thermal insulation board is rock wool thermal insulation board.
Preferably, in order to improve the thermal conductivity of nozzle, the making material of the nozzle is copper.
Preferably, in order to improve heating efficiency, the heater is electromagnetic heater.
Preferably, the first motor and the second motor are servo motor in order to accurately control motor.
The invention has the advantages that the multi-functional 3D printing is ingenious in design, feasibility is high, collect four discharging mechanisms in One nozzle, which can simultaneously or timesharing imports four kinds of raw material threads, and raw material thread can spray after discharging mechanism melts, It is sprayed after mixed organization can also being entered from discharging mechanism, mixed organization squeezes out after abundant melt raw material may be implemented, and prevents from spraying Mouth blocking, can also mix the raw material thread of multiple color simultaneously, mix colours, the design of four discharging mechanisms can support three kinds of originals The importing of color material and backing material.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of structural schematic diagram of multi-functional 3D printing head of the invention.
Fig. 2 is a kind of top view of the nozzle of multi-functional 3D printing head of the invention.
Fig. 3 is a kind of bottom view of the nozzle of multi-functional 3D printing head of the invention.
Fig. 4 is a kind of structural schematic diagram of the regulating mechanism of multi-functional 3D printing head of the invention.
In figure: 1. nozzles, 2. heaters, 3. feed inlets, 4. first discharge ports, 5. first transfer passages, 6. first motors, 7. screw rod, 8. second discharge ports, 9. second transfer passages, 10. third transfer passages, 11. second motors, 12. baffles, 13. turns Axis, 14. convergence casees, 15. fans, 16. shells, 17. feed pipes, 18. radiating fins, 19. temperature sensors.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figs 1-4, a kind of multi-functional 3D printing head, including cooling mechanism, nozzle 1 and is arranged on nozzle 1 Discharging mechanism, mixed organization, switching mechanism and heater 2；
The shape of the nozzle 1 is truncated cone-shaped, and the area of 1 upper surface of nozzle is greater than the area of lower end surface, described to dissipate The top of nozzle 1 is arranged in heat engine structure, and the cooling mechanism is connected to discharging mechanism, and there are four the discharging mechanisms, each to discharge Mechanism is evenly distributed on the periphery of 1 axis of nozzle, and the mixed organization is located on the axis of nozzle 1, the discharging mechanism and mixed Mechanism connection is closed, there are four the switching mechanisms, and the side of discharging mechanism is arranged in the switching mechanism, sets on the nozzle 1 There are several through-holes, each through-hole is horizontally disposed, and the heater 2 there are several, and the heater 2 is located in through-hole；
The discharging mechanism includes feed inlet 3, the first discharge port 4 and the first transfer passage 5, and the setting of feed inlet 3 exists The lower end surface of nozzle 1 is arranged in the upper surface of nozzle 1, first discharge port 4, and the feed inlet 3 passes through the first conveyance conduit It is connected to the first discharge port 4；
The mixed organization includes that first motor 6, screw rod 7, the second discharge port 8, the second transfer passage 9 and third conveying are logical Road 10, second transfer passage 9 are vertically provided at the inside of nozzle 1, and the lower end of nozzle 1 is arranged in second discharge port 8 Face, second discharge port 8 and the second transfer passage 9 are respectively positioned on the axis of nozzle 1, the bottom of second transfer passage 9 It is connected to the second discharge port 8, first transfer passage 5 is connected to by third transfer passage 10 with the second transfer passage 9, described The upper surface of nozzle 1 is arranged in first motor 6, and the output shaft of the first motor 6 is arranged straight down, and the screw rod 7 is vertical Setting, the screw rod 7 is located in the second transfer passage 9, output shaft and screw rod 7 coaxial arrangement of the first motor 6, and described the One motor 6 is sequentially connected with screw rod 7；
The switching mechanism includes the second motor 11, baffle 12 and shaft 13, and the cross section of first transfer passage 5 is Circle, the baffle 12 are disc, and the baffle 12 is matched with the first transfer passage 5, and the setting of shaft 13 is defeated first It send in channel 5, the shaft 13 is vertical with the first transfer passage 5 to be connect, and the shaft 13 and the sliding of the first transfer passage 5 connect It connecing, the baffle 12 is hinged by shaft 13 and the first transfer passage 5, and second motor 11 is arranged on the outer wall of nozzle 1, Second motor 11 is coaxially disposed with shaft 13, and second motor 11 is sequentially connected with shaft 13, the switching mechanism position In the lower section of third transfer passage 10；
The cooling mechanism includes convergence case 14, fan 15 and radiating subassembly, and there are four the radiating subassemblies, each heat dissipation group Part is connected to convergence case 14, and the upper surface of convergence case 14, the air inlet of the fan 15 and convergence is arranged in the fan 15 Case 14 is connected to；
The radiating subassembly includes shell 16 and feed pipe 17, and the upper surface of the shell 16 is equipped with the first opening, described The lower end surface of shell 16 is equipped with the second opening, and the first opening and the second opening are connected to by feed pipe 17, the feed pipe 17 are connected through a screw thread mode is connected to feed inlet 3.
Preferably, prevent the raw material thread in feed pipe from melt in advance to influence to feed to radiate to feed pipe 17, The outer wall of the feed pipe 17 is equipped with several radiating fins 18.
Preferably, in order to improve the heat-sinking capability of radiating fin 18, the making material of the radiating fin 18 is aluminium conjunction Gold.
Preferably, in order to monitor and control the heating temperature of nozzle 1, the nozzle 1 is equipped with temperature sensor 19。
Preferably, in order to improve the temperature measurement range of temperature sensor 19, the temperature sensor 19 is thermocouple Temperature sensor.
Preferably, motor and nozzle 1 directly contact and heat transmitting occur in order to prevent, the first motor 6 and second Motor 11 is connect by thermal insulation board with nozzle 1.
Preferably, in order to improve the stability of thermal insulation board and heat-proof quality, the thermal insulation board is rock wool thermal insulation board.
Preferably, in order to improve the thermal conductivity of nozzle 1, the making material of the nozzle 1 is copper.
Preferably, in order to improve heating efficiency, the heater 2 is electromagnetic heater.
Preferably, the first motor 6 and the second motor 11 are servo motor in order to accurately control motor.
The multi-functional 3D printing head, is mounted in the walking mechanism of 3D printer, the working principle of discharging mechanism are as follows: raw material Silk enters in the first transfer passage 5 from feed inlet 4 to be melted, and is sprayed after fusing from the first discharge port 4.The work of switching mechanism Principle are as follows: the rotation of 11 drive shaft 13 of the second motor makes the rotation of baffle 12 to the first transfer passage 5 is blocked, melts at this time Raw material thread is entered in the second transfer passage 9 from the first transfer passage 5 by third transfer passage 10.The working principle of mixed organization Are as follows: when one or more kinds of raw materials enter in the second transfer passage 9, first motor 6 drives screw rod 7 to rotate, and carries out to original Stirring and extruding, make to mix and the raw material sufficiently melted is sprayed from the second discharge port 8.The working principle of cooling mechanism is to feed Pipe 17 converges case 14 and four shells for distributing the heat passed over from nozzle 1 for importing raw material thread, radiating fin 18 16 are connected to, and the heat in four shells can be discharged to top simultaneously for fan 15, prevent the outlet air of fan 15 going out to nozzle 1 Material impacts.
Compared with prior art, the multi-functional 3D printing is ingenious in design, and feasibility is high, collects four discharging mechanisms in one Nozzle 1, which can simultaneously or timesharing imports four kinds of raw material threads, and raw material thread can spray after discharging mechanism melts, It is sprayed after mixed organization being entered from discharging mechanism, mixed organization squeezes out after abundant melt raw material may be implemented, and prevents nozzle 1 Blocking, can also mix the raw material thread of multiple color simultaneously, mix colours, the design of four discharging mechanisms can support three kinds of primary colors The importing of material and backing material.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.

Claims (10)

1.一种多功能3D打印头，其特征在于，包括散热机构、喷嘴(1)以及设置在喷嘴(1)上的出料机构、混合机构、切换机构和加热器(2)；1. A multifunctional 3D printing head, characterized in that it comprises a heat dissipation mechanism, a nozzle (1) and a discharging mechanism, a mixing mechanism, a switching mechanism and a heater (2) arranged on the nozzle (1); 所述喷嘴(1)的形状为圆台形，所述喷嘴(1)上端面的面积大于下端面的面积，所述散热机构设置在喷嘴(1)的上方，所述散热机构与出料机构连通，所述出料机构有四个，各出料机构均匀分布在喷嘴(1)轴线的外周，所述混合机构位于喷嘴(1)的轴线上，所述出料机构与混合机构连通，所述切换机构有四个，所述切换机构设置在出料机构的一侧，所述喷嘴(1)上设有若干通孔，各通孔均水平设置，所述加热器(2)有若干个，所述加热器(2)位于通孔内；The shape of the nozzle (1) is a truncated cone, the area of the upper end surface of the nozzle (1) is larger than the area of the lower end surface, the heat dissipation mechanism is arranged above the nozzle (1), and the heat dissipation mechanism is communicated with the discharge mechanism. , there are four discharging mechanisms, each discharging mechanism is evenly distributed on the outer circumference of the axis of the nozzle (1), the mixing mechanism is located on the axis of the nozzle (1), the discharging mechanism is communicated with the mixing mechanism, the There are four switching mechanisms, the switching mechanisms are arranged on one side of the discharging mechanism, the nozzle (1) is provided with a number of through holes, and each through hole is arranged horizontally, and the heater (2) has a number of, the heater (2) is located in the through hole; 所述出料机构包括进料口(3)、第一出料口(4)和第一输送通道(5)，所述进料口(3)设置在喷嘴(1)的上端面，所述第一出料口(4)设置在喷嘴(1)的下端面，所述进料口(3)通过第一输送管道与第一出料口(4)连通；The discharging mechanism includes a feeding port (3), a first discharging port (4) and a first conveying channel (5), the feeding port (3) is arranged on the upper end face of the nozzle (1), and the The first discharge port (4) is arranged on the lower end face of the nozzle (1), and the feed port (3) is communicated with the first discharge port (4) through the first conveying pipeline; 所述混合机构包括第一电机(6)、螺杆(7)、第二出料口(8)、第二输送通道(9)和第三输送通道(10)，所述第二输送通道(9)竖向设置在喷嘴(1)的内部，所述第二出料口(8)设置在喷嘴(1)的下端面，所述第二出料口(8)和第二输送通道(9)均位于喷嘴(1)的轴线上，所述第二输送通道(9)的底部与第二出料口(8)连通，所述第一输送通道(5)通过第三输送通道(10)与第二输送通道(9)连通，所述第一电机(6)设置在喷嘴(1)的上端面，所述第一电机(6)的输出轴竖直向下设置，所述螺杆(7)竖向设置，所述螺杆(7)位于第二输送通道(9)内，所述第一电机(6)的输出轴与螺杆(7)同轴设置，所述第一电机(6)与螺杆(7)传动连接；The mixing mechanism includes a first motor (6), a screw (7), a second discharge port (8), a second conveying channel (9) and a third conveying channel (10). The second conveying channel (9) ) is vertically arranged inside the nozzle (1), the second outlet (8) is arranged on the lower end face of the nozzle (1), the second outlet (8) and the second conveying channel (9) Both are located on the axis of the nozzle (1), the bottom of the second conveying channel (9) is communicated with the second outlet (8), and the first conveying channel (5) is connected with the third conveying channel (10) through the third conveying channel (10). The second conveying channel (9) is connected, the first motor (6) is arranged on the upper end face of the nozzle (1), the output shaft of the first motor (6) is arranged vertically downward, and the screw (7) Vertically arranged, the screw (7) is located in the second conveying channel (9), the output shaft of the first motor (6) is arranged coaxially with the screw (7), and the first motor (6) is arranged with the screw (7) Transmission connection; 所述切换机构包括第二电机(11)、挡板(12)和转轴(13)，所述第一输送通道(5)的横截面为圆形，所述挡板(12)为圆盘形，所述挡板(12)与第一输送通道(5)匹配，所述转轴(13)设置在第一输送通道(5)内，所述转轴(13)与第一输送通道(5)垂直连接，所述转轴(13)与第一输送通道(5)滑动连接，所述挡板(12)通过转轴(13)与第一输送通道(5)铰接，所述第二电机(11)设置在喷嘴(1)的外壁上，所述第二电机(11)与转轴(13)同轴设置，所述第二电机(11)与转轴(13)传动连接，所述切换机构位于第三输送通道(10)的下方；The switching mechanism comprises a second motor (11), a baffle plate (12) and a rotating shaft (13), the cross section of the first conveying channel (5) is circular, and the baffle plate (12) is disc-shaped , the baffle (12) is matched with the first conveying passage (5), the rotating shaft (13) is arranged in the first conveying passage (5), and the rotating shaft (13) is perpendicular to the first conveying passage (5) connected, the rotating shaft (13) is slidably connected with the first conveying channel (5), the baffle plate (12) is hinged with the first conveying channel (5) through the rotating shaft (13), and the second motor (11) is provided On the outer wall of the nozzle (1), the second motor (11) is coaxially arranged with the rotating shaft (13), the second motor (11) is connected with the rotating shaft (13) in a driving manner, and the switching mechanism is located in the third conveying shaft (13). Below the channel (10); 所述散热机构包括汇聚箱(14)、风扇(15)和散热组件，所述散热组件有四个，各散热组件均与汇聚箱(14)连通，所述风扇(15)设置在汇聚箱(14)的上端面，所述风扇(15)的进风口与汇聚箱(14)连通；The heat dissipation mechanism includes a converging box (14), a fan (15) and a heat dissipation assembly, there are four heat dissipation assemblies, and each heat dissipation assembly is communicated with the converging box (14), and the fan (15) is arranged in the converging box (15). 14), the air inlet of the fan (15) communicates with the convergence box (14); 所述散热组件包括壳体(16)和进料管(17)，所述壳体(16)的上端面设有第一开口，所述壳体(16)的下端面设有第二开口，所述第一开口和第二开口通过进料管(17)连通，所述进料管(17)通过螺纹连接方式与进料口(3)连通。The heat dissipation assembly comprises a casing (16) and a feeding pipe (17), the upper end surface of the casing (16) is provided with a first opening, and the lower end surface of the casing (16) is provided with a second opening, The first opening and the second opening are communicated through a feed pipe (17), and the feed pipe (17) is communicated with the feed port (3) through a screw connection. 2.如权利要求1所述的多功能3D打印头，其特征在于，所述进料管(17)的外壁设有若干散热翅片(18)。2. The multifunctional 3D printing head according to claim 1, characterized in that, the outer wall of the feed pipe (17) is provided with a plurality of cooling fins (18). 3.如权利要求2所述的多功能3D打印头，其特征在于，所述散热翅片(18)的制作材料为铝合金。3. The multifunctional 3D printing head according to claim 2, characterized in that, the heat dissipating fins (18) are made of aluminum alloy. 4.如权利要求1所述的多功能3D打印头，其特征在于，所述喷嘴(1)上设有温度传感器(19)。4. The multifunctional 3D printing head according to claim 1, wherein a temperature sensor (19) is provided on the nozzle (1). 5.如权利要求4所述的多功能3D打印头，其特征在于，所述温度传感器(19)为热电偶温度传感器。5. The multifunctional 3D printing head according to claim 4, wherein the temperature sensor (19) is a thermocouple temperature sensor. 6.如权利要求1所述的多功能3D打印头，其特征在于，所述第一电机(6)和第二电机(11)均通过隔热板与喷嘴(1)连接。6. The multifunctional 3D printing head according to claim 1, wherein the first motor (6) and the second motor (11) are both connected to the nozzle (1) through a heat shield. 7.如权利要求6所述的多功能3D打印头，其特征在于，所述隔热板为岩棉隔热板。7. The multifunctional 3D printing head according to claim 6, wherein the thermal insulation board is a rock wool thermal insulation board. 8.如权利要求1所述的多功能3D打印头，其特征在于，所述喷嘴(1)的制作材料为铜。8. The multifunctional 3D printing head according to claim 1, wherein the nozzle (1) is made of copper. 9.如权利要求1所述的多功能3D打印头，其特征在于，所述加热器(2)为电磁加热器。9. The multifunctional 3D printing head according to claim 1, wherein the heater (2) is an electromagnetic heater. 10.如权利要求1所述的多功能3D打印头，其特征在于，所述第一电机(6)和第二电机(11)均为伺服电机。10. The multifunctional 3D printing head according to claim 1, wherein the first motor (6) and the second motor (11) are both servo motors.
CN201710049252.7A 2017-01-20 2017-01-20 A kind of multi-functional 3D printing head Active CN106827499B (en)

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