CN109243255B - A 3D printing demonstration device for experimental teaching - Google Patents
A 3D printing demonstration device for experimental teaching Download PDFInfo
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- CN109243255B CN109243255B CN201811320733.8A CN201811320733A CN109243255B CN 109243255 B CN109243255 B CN 109243255B CN 201811320733 A CN201811320733 A CN 201811320733A CN 109243255 B CN109243255 B CN 109243255B
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- 238000010146 3D printing Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 12
- 238000007639 printing Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005054 agglomeration Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 4
- 210000005056 cell body Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
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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
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/314—Preparation
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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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Educational Administration (AREA)
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Abstract
本发明公开了一种实验教学用3D打印演示装置，包括三轴移动机构、连接壳体、连接管、输出连接头、存料壳体、存料腔、活塞、阀门、槽体、单向阀、管体、加料盖、密封盖、固定盖和密封垫；本发明具有结构合理简单，这里在管体外部表面上设有刻度线，从而便于随时了解存料腔中材料的存储量，以便及时添加相应的材料避免出现打印不全的现象，也就提高了演示的效果；阀门为恒压气阀，从而保证了活塞上侧气压始终处于恒压状态，当输入口与相应的径向连接孔相连通时材料能够及时均匀的输送到内腔中，而后再由喷头喷出横向打印，也就提高了打印的均匀性；设置的电机二，则能够通过搅拌叶片对内腔中的材料进行搅拌，从而避免了材料出现结块的现象。
The invention discloses a 3D printing demonstration device for experimental teaching, comprising a three-axis moving mechanism, a connecting shell, a connecting pipe, an output connecting head, a material storage shell, a material storage cavity, a piston, a valve, a tank body and a one-way valve , pipe body, feeding cover, sealing cover, fixing cover and sealing gasket; the present invention has a reasonable and simple structure, where scale lines are arranged on the outer surface of the pipe body, so that it is convenient to know the storage amount of materials in the material storage cavity at any time, so as to timely Adding the corresponding materials to avoid the phenomenon of incomplete printing also improves the effect of the demonstration; the valve is a constant pressure air valve, which ensures that the air pressure on the upper side of the piston is always in a constant pressure state. When the input port is connected to the corresponding radial connection hole The material can be transported to the inner cavity in a timely and uniform manner, and then ejected by the nozzle for horizontal printing, which improves the uniformity of printing. Thereby, the phenomenon of agglomeration of the material is avoided.
Description
Technical Field
The invention relates to the technical field of teaching equipment correlation, in particular to a 3D printing demonstration device for experiment teaching.
Background
The fact proves that some students who do not show good performance in traditional education are mainly characterized in that the learnt courses are too strong in theory and do not have interest, the students pass the examinations by remembering the abstract concepts, but the students forget the abstract concepts soon after the examinations, so that many schools feel innovative teaching modes, and in recent years, the schools integrate the 3D printing system with the teaching system to obtain good effect. The 3D printer can enable boring courses to become vivid, is a learning mode with vision and touch, and has strong temptation, and in touch learning, students do not simply see characters or graphics on a blackboard or a display, but grasp a three-dimensional model of a core concept through the touch of the students, so that the students can absorb and digest knowledge, and do not forget the learned courses. On one hand, the 3D printer can improve the advantages of students in mastering technology and improve the scientific and technical literacy of the students, and on the other hand, the three-dimensional model printed by the 3D printer is utilized to obviously improve the design creativity of the students; the existing 3D printing demonstration device is simple in function, and particularly, the printed color is single.
Disclosure of Invention
The invention aims to solve the problems, and provides a 3D printing demonstration device for experiment teaching, which solves the problems that the existing 3D printing demonstration device is simple in function, and especially the printed color is single.
In order to solve the above problems, the present invention provides a technical solution: the utility model provides a D prints presentation device for experiment teaching, includes triaxial moving mechanism, and its innovation point lies in: the device also comprises a connecting shell, a connecting pipe, an output connector, a material storage shell, a material storage cavity, a piston, a valve, a groove body, a one-way valve, a pipe body, a feeding cover, a sealing cover, a fixing cover and a sealing gasket; the connecting shell is fixedly connected to the three-axis moving mechanism, and the top of the connecting shell is fixedly connected with a material storage shell; a plurality of material storage cavities are uniformly formed in the material storage shell, and a fixed cover is fixedly connected to an opening at the upper side of the material storage shell; pistons are vertically and movably connected in the material storage cavity, and output connectors are fixedly connected at outlets on the lower side of the material storage cavity; the outlets at the lower sides of the output connectors are fixedly connected with connecting pipes; the tops of the pistons are fixedly connected with pipe bodies; the upper sides of the pipe bodies are vertically and movably connected in holes at corresponding positions in the fixed covers, outlets at the lower sides of the pipe bodies are communicated with corresponding material storage cavities through one-way valves, and inlets at the upper sides of the pipe bodies are provided with feeding covers; an annular groove body is arranged in the top surface of the fixed cover, a sealing cover is fixedly connected to the top surface of the fixed cover, and a sealing gasket is arranged between the edge of the bottom surface of the fixed cover and the top surface of the material storage shell; the inlet fixedly connected with valve on the left side of the groove body, the lower side of the groove body is respectively communicated with the upper side of the corresponding material storage cavity through a plurality of small holes.
Preferably, the device also comprises a motor I, a motor II, a driven gear, a connecting cover, an input connector, a vertical connecting hole, a radial connecting hole, a sealing plug, a bottom cover, a fixed seat, a sealing ring, a spray head, a stirring shaft, a stirring blade, an inner cavity, a lower sealing ring, an input port, a movable valve core, an upper sealing ring and a driving gear; the upper side of the fixed seat is fixedly connected inside the lower side of the connecting shell, and the center of the top of the fixed seat is fixedly connected with a connecting cover; the movable valve element is movably connected to the inside of the center of the upper side of the fixed seat, an inner cavity is arranged inside the lower side of the movable valve element, a driven gear is fixedly connected to the outside of the upper side of the movable valve element, an upper sealing ring is arranged between the outside of the upper side of the movable valve element and the upper side of the inside of the center of the upper side of the fixed seat, and a lower sealing ring is arranged between the outside of the lower side of the movable valve element and the lower side of the; the left side of the driven gear is connected with the driving gear; the center of the driving gear is fixedly connected to an output shaft at the lower side of the motor; the first motor is fixedly connected to the left upper side of the connecting cover; the second motor is fixedly connected to the center of the top of the connecting cover, and a stirring shaft is fixedly connected to the output shaft end of the lower side of the second motor; the lower side of the stirring shaft is movably connected in the inner cavity, and a plurality of stirring blades are fixedly connected to the outer part of the stirring shaft; an input port is formed in the left upper side of the inner cavity; inlets on the outer side of the input port are respectively communicated with the inner sides of the corresponding radial connecting holes; the radial connecting holes are a plurality of and are uniformly arranged in the fixed seat in a circular manner, sealing plugs are arranged in openings on the outer sides of the radial connecting holes, and vertical connecting holes are arranged on the outer sides of the radial connecting holes; input connectors are fixedly connected to the inlets on the upper sides of the vertical connecting holes; the inlet on the upper side of the input connector is respectively connected with the outlet on the lower side of the corresponding connecting pipe; the top of the bottom cover is fixedly connected to the bottom of the fixed seat, a sealing ring is arranged between the top of the bottom cover and the bottom of the fixed seat, and the center of the bottom cover is fixedly connected with a spray head; and the inlet at the upper side of the spray head is communicated with the inside of the inner cavity.
Preferably, the valve is a constant pressure gas valve.
Preferably, a manual exhaust valve is arranged in the fixed cover.
Preferably, the outer surface of the tube body is provided with scale marks.
Preferably, the first motor is a stepping motor.
The invention has the beneficial effects that:
(1) the invention has the advantages of reasonable and simple structure, low production cost, convenient installation and complete functions, and the scale marks are arranged on the outer surface of the tube body, thereby facilitating the understanding of the storage amount of the materials in the material storage cavity at any time, facilitating the timely addition of the corresponding materials, avoiding the phenomenon of incomplete printing and improving the demonstration effect.
(2) The valve is a constant-pressure air valve, so that the air pressure on the upper side of the piston is always in a constant-pressure state, when the input port is communicated with the corresponding radial connecting hole, materials can be timely and uniformly conveyed into the inner cavity, and then the materials are sprayed out by the spray head to be transversely printed, so that the printing uniformity is improved.
(3) The second motor arranged in the invention can stir the material in the inner cavity through the stirring blade, thereby avoiding the phenomenon of caking of the material and improving the printing quality.
Drawings
For ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial top view of the present invention.
1-a three-axis movement mechanism; 2-connecting the housing; 3-connecting pipe; 4-output connector; 5-storing the material shell; 6-a material storage cavity; 7-a piston; 8-a valve; 9-a groove body; 10-a one-way valve; 11-a tube body; 12-a feeding cover; 13-a sealing cover; 14-a fixed cover; 15-a sealing gasket; 16-a first motor; 17-motor two; 18-a driven gear; 19-a connecting cover; 20-input connector; 21-vertical connecting holes; 22-radial connecting hole; 23-a sealing plug; 24-a bottom cover; 25-a fixed seat; 26-a sealing ring; 27-a spray head; 28-stirring shaft; 29-stirring blades; 30-lumen; 31-lower sealing ring; 32-an input port; 33-a movable valve core; 34-upper sealing ring; 35-driving gear.
Detailed Description
As shown in fig. 1 and fig. 2, the following technical solutions are adopted in the present embodiment: A3D printing demonstration device for experiment teaching comprises a three-axis moving mechanism 1, and further comprises a connecting shell 2, a connecting pipe 3, an output connector 4, a material storage shell 5, a material storage cavity 6, a piston 7, a valve 8, a groove body 9, a one-way valve 10, a pipe body 11, a feeding cover 12, a sealing cover 13, a fixing cover 14 and a sealing gasket 15; the connecting shell 2 is fixedly connected to the three-axis moving mechanism 1, and the top of the connecting shell 2 is fixedly connected with a material storage shell 5; a plurality of material storage cavities 6 are uniformly arranged in the material storage shell 5, and a fixed cover 14 is fixedly connected to an opening at the upper side of the material storage shell 5; pistons 7 are vertically and movably connected inside the material storage cavity 6, and output connectors 4 are fixedly connected at outlets on the lower side of the material storage cavity 6; the outlets at the lower sides of the output connectors 4 are fixedly connected with connecting pipes 3; the tops of the pistons 7 are fixedly connected with pipe bodies 11; the upper sides of the pipe bodies 11 are vertically and movably connected in holes at corresponding positions in the fixed covers 14, outlets at the lower sides of the pipe bodies 11 are communicated with the interiors of the corresponding material storage cavities 6 through one-way valves 10, and inlets at the upper sides of the pipe bodies 11 are provided with feeding covers 12; an annular groove body 9 is arranged in the top surface of the fixed cover 14, a sealing cover 13 is fixedly connected to the top surface of the fixed cover 14, and a sealing gasket 15 is arranged between the edge of the bottom surface of the fixed cover 14 and the top surface of the material storage shell 5; the inlet fixedly connected with valve 8 on the left side of cell body 9, cell body 9 downside is linked together with the inside upside in the material storage chamber 6 that corresponds respectively through the several aperture.
The device also comprises a first motor 16, a second motor 17, a driven gear 18, a connecting cover 19, an input connector 20, a vertical connecting hole 21, a radial connecting hole 22, a sealing plug 23, a bottom cover 24, a fixed seat 25, a sealing ring 26, a spray head 27, a stirring shaft 28, a stirring blade 29, an inner cavity 30, a lower sealing ring 31, an input port 32, a movable valve core 33, an upper sealing ring 34 and a driving gear 35; the upper side of the fixed seat 25 is fixedly connected inside the lower side of the connecting shell 2, and the center of the top of the fixed seat 25 is fixedly connected with a connecting cover 19; the movable valve core 33 is movably connected to the inside of the center of the upper side of the fixed seat 25, an inner cavity 30 is arranged inside the lower side of the movable valve core 33, a driven gear 18 is fixedly connected to the outside of the upper side of the movable valve core 33, an upper sealing ring 34 is arranged between the outside of the upper side of the movable valve core 33 and the upper side of the center inside of the upper side of the fixed seat 25, and a lower sealing ring 31 is arranged between the outside of the lower side of the movable valve core 33 and the lower side of the center inside of; the left side of the driven gear 18 is connected with a driving gear 35; the center of the driving gear 35 is fixedly connected to an output shaft at the lower side of the motor I16; the first motor 16 is fixedly connected to the left upper side of the connecting cover 19; the second motor 17 is fixedly connected to the center of the top of the connecting cover 19, and a stirring shaft 28 is fixedly connected to the output shaft end of the lower side of the second motor 17; the lower side of the stirring shaft 28 is movably connected in the inner cavity 30, and a plurality of stirring blades 29 are fixedly connected to the outside of the stirring shaft 28; an input port 32 is arranged at the left upper side of the inner cavity 30; inlets on the outer sides of the input ports 32 are respectively communicated with the inner sides of the corresponding radial connecting holes 22; the number of the radial connecting holes 22 is multiple, the radial connecting holes 22 are respectively and uniformly arranged in a fixed seat 25 in a circular shape, sealing plugs 23 are respectively arranged in openings on the outer sides of the radial connecting holes 22, and vertical connecting holes 21 are respectively arranged on the outer sides of the radial connecting holes 22; the inlet at the upper side of the vertical connecting hole 21 is fixedly connected with an input connector 20; the inlet at the upper side of the input connector 20 is respectively connected with the outlet at the lower side of the corresponding connecting pipe 3; the top of the bottom cover 24 is fixedly connected to the bottom of the fixed seat 25, a sealing ring 26 is arranged between the top of the bottom cover 24 and the bottom of the fixed seat 25, and a spray head 27 is fixedly connected to the center of the bottom cover 24; the inlet at the upper side of the spray head 27 is communicated with the inner part of the inner cavity 30.
Wherein, the valve 8 is a constant pressure air valve; a manual exhaust valve is arranged in the fixed cover 14; the outer surface of the tube body 11 is provided with scale marks; the first motor 16 is a stepping motor.
The using state of the invention is as follows: the invention has the advantages of reasonable and simple structure, low production cost, convenient installation and complete functions, when in use, the manual exhaust valves in the feeding cover 12 and the fixed cover 14 are firstly opened, then materials with different colors are respectively injected into the corresponding material storage cavities 6 through the injectors, the scale marks are arranged on the outer surface of the tube body 11, thereby being convenient for knowing the storage amount of the materials in the material storage cavities 6 at any time so as to add the corresponding materials in time to avoid incomplete printing, and further improving the demonstration effect, wherein the valve 8 is a constant pressure air valve, thereby ensuring that the air pressure on the upper side of the piston 7 is always in a constant pressure state, when the input port 32 is communicated with the corresponding radial connecting hole 22, the materials can be timely and uniformly conveyed into the inner cavity 30, and then the materials are transversely printed by the spray head 27, so that the printing uniformity is improved, and the arranged motor II 17 can stir the materials in the inner cavity 30 through the stirring blade 29, thereby avoiding the phenomenon of caking of the material and improving the printing quality.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a 3D prints presentation device for experiment teaching, includes triaxial moving mechanism (1), its characterized in that: the device is characterized by further comprising a connecting shell (2), a connecting pipe (3), an output connector (4), a material storage shell (5), a material storage cavity (6), a piston (7), a valve (8), a groove body (9), a one-way valve (10), a pipe body (11), a feeding cover (12), a sealing cover (13), a fixing cover (14), a sealing gasket (15), a motor I (16), a motor II (17), a driven gear (18), a connecting cover (19), an input connector (20), a vertical connecting hole (21), a radial connecting hole (22), a sealing plug (23), a bottom cover (24), a fixing seat (25), a sealing ring (26), a spray head (27), a stirring shaft (28), a stirring blade (29), an inner cavity (30), a lower sealing ring (31), an input port (32), a movable valve core (33), an upper sealing ring (34;
the connecting shell (2) is fixedly connected to the three-axis moving mechanism (1), and the top of the connecting shell (2) is fixedly connected with a material storage shell (5);
a plurality of material storage cavities (6) are uniformly arranged in the material storage shell (5), and a fixed cover (14) is fixedly connected to an opening at the upper side of the material storage shell (5);
pistons (7) are vertically and movably connected inside the material storage cavity (6), and output connectors (4) are fixedly connected at outlets on the lower side of the material storage cavity (6);
the outlets at the lower sides of the output connectors (4) are fixedly connected with connecting pipes (3);
the tops of the pistons (7) are fixedly connected with pipe bodies (11);
the upper sides of the pipe bodies (11) are vertically movably connected in holes in corresponding positions in the fixed covers (14), outlets on the lower sides of the pipe bodies (11) are communicated with the interiors of the corresponding material storage cavities (6) through one-way valves (10), and inlets on the upper sides of the pipe bodies (11) are provided with feeding covers (12);
an annular groove body (9) is arranged in the top surface of the fixed cover (14), a sealing cover (13) is fixedly connected to the top surface of the fixed cover (14), and a sealing gasket (15) is arranged between the edge of the bottom surface of the fixed cover (14) and the top surface of the material storage shell (5);
a valve (8) is fixedly connected to an inlet at the left side of the tank body (9), and the lower side of the tank body (9) is respectively communicated with the upper side inside the corresponding material storage cavity (6) through a plurality of small holes;
the upper side of the fixed seat (25) is fixedly connected inside the lower side of the connecting shell (2), and the center of the top of the fixed seat (25) is fixedly connected with a connecting cover (19);
the movable valve core (33) is movably connected to the inside of the center of the upper side of the fixed seat (25), an inner cavity (30) is arranged inside the lower side of the movable valve core (33), a driven gear (18) is fixedly connected to the outside of the upper side of the movable valve core (33), an upper sealing ring (34) is arranged between the outside of the upper side of the movable valve core (33) and the upper side of the inside of the upper side of the fixed seat (25), and a lower sealing ring (31) is arranged between the outside of the lower side of the movable valve core (33) and the lower side of the inside of the upper side of;
the left side of the driven gear (18) is connected with a driving gear (35);
the center of the driving gear (35) is fixedly connected to an output shaft at the lower side of the motor I (16);
the first motor (16) is fixedly connected to the left upper side of the connecting cover (19);
the second motor (17) is fixedly connected to the center of the top of the connecting cover (19), and a stirring shaft (28) is fixedly connected to the output shaft end of the lower side of the second motor (17);
the lower side of the stirring shaft (28) is movably connected in the inner cavity (30), and a plurality of stirring blades (29) are fixedly connected to the outer part of the stirring shaft (28);
an input port (32) is arranged at the left upper side of the inner cavity (30);
the inlets at the outer sides of the input ports (32) are respectively communicated with the inner sides of the corresponding radial connecting holes (22);
the number of the radial connecting holes (22) is multiple, the radial connecting holes (22) are respectively and uniformly arranged in a fixed seat (25) in a circular shape, sealing plugs (23) are respectively arranged in openings at the outer sides of the radial connecting holes (22), and vertical connecting holes (21) are respectively arranged at the outer sides of the radial connecting holes (22);
the inlet at the upper side of each vertical connecting hole (21) is fixedly connected with an input connector (20);
the inlet at the upper side of the input connector (20) is respectively connected with the outlet at the lower side of the corresponding connecting pipe (3);
the top of the bottom cover (24) is fixedly connected to the bottom of the fixed seat (25), a sealing ring (26) is arranged between the top of the bottom cover (24) and the bottom of the fixed seat (25), and the center of the bottom cover (24) is fixedly connected with a spray head (27);
the inlet at the upper side of the spray head (27) is communicated with the inside of the inner cavity (30);
the valve (8) is a constant pressure air valve.
2. The 3D printing demonstration device for the experiment teaching according to claim 1, characterized in that: a manual exhaust valve is arranged in the fixed cover (14).
3. The 3D printing demonstration device for the experiment teaching according to claim 1, characterized in that: the outer surface of the tube body (11) is provided with scale marks.
4. The 3D printing demonstration device for the experiment teaching according to claim 1, characterized in that: the first motor (16) is a stepping motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811320733.8A CN109243255B (en) | 2018-11-07 | 2018-11-07 | A 3D printing demonstration device for experimental teaching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811320733.8A CN109243255B (en) | 2018-11-07 | 2018-11-07 | A 3D printing demonstration device for experimental teaching |
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| CN109243255A CN109243255A (en) | 2019-01-18 |
| CN109243255B true CN109243255B (en) | 2021-03-23 |
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| CN201811320733.8A Active CN109243255B (en) | 2018-11-07 | 2018-11-07 | A 3D printing demonstration device for experimental teaching |
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| CN110539480A (en) * | 2019-09-25 | 2019-12-06 | 李筱穗 | FDM shower nozzle extrusion pressure stable structure |
| CN110861303A (en) * | 2019-11-27 | 2020-03-06 | 常州机电职业技术学院 | Active-passive mixed 3D printing nozzle |
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| US20080036758A1 (en) * | 2006-03-31 | 2008-02-14 | Intelisum Inc. | Systems and methods for determining a global or local position of a point of interest within a scene using a three-dimensional model of the scene |
| US7971991B2 (en) * | 2006-05-26 | 2011-07-05 | Z Corporation | Apparatus and methods for handling materials in a 3-D printer |
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2018
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