CN113431330B - Building 3D printing head - Google Patents
Building 3D printing head Download PDFInfo
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- CN113431330B CN113431330B CN202110725162.1A CN202110725162A CN113431330B CN 113431330 B CN113431330 B CN 113431330B CN 202110725162 A CN202110725162 A CN 202110725162A CN 113431330 B CN113431330 B CN 113431330B
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- China
- Prior art keywords
- stirring
- extruding
- driving device
- feeding hole
- connecting channel
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Civil Engineering (AREA)
- Coating Apparatus (AREA)
Abstract
The invention provides a building 3D printing head, relates to the technical field of 3D printing, and solves the technical problems that concrete slurry is easy to reach a state of coagulation and hardening in advance and pipe blockage is caused when concrete is stirred by a stirrer and is conveyed to a conveying pipe and a printing device through a pump in the prior art. The device comprises a stirring device, a material extruding device, a connecting channel, a first driving device, a second driving device and a mounting seat, wherein the stirring device and the material extruding device are communicated through the connecting channel; the stirring device is provided with an additive feeding hole and a mortar feeding hole, the additive feeding hole is positioned above the mortar feeding hole, the height difference exists between the additive feeding hole and the mortar feeding hole, mortar enters the stirring device from the mortar feeding hole, and the additive enters the stirring device from the additive feeding hole.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a building 3D printing head.
Background
The 3D printing process of the building (concrete) is a construction process which determines a printing path according to a designed three-dimensional model of the building or a component, controls a printing head to walk, and utilizes equipment to convey a printing material to the printing head for outputting so as to print the building. Building 3D prints and is favorable to reducing resource and energy resource consumption, reduction of erection time, reduction intensity of labour. Under the conditions that China gradually steps into an aging era, the labor is more and more intense, and the labor cost is more and more high, the development of the traditional labor-intensive building industry faces huge challenges.
On the other hand, the total amount of building energy consumption in China is increased year by year, and the total energy consumption proportion is increased to 27.45 percent from 10 percent at the end of 70 years in the 20 th century. Under the aim and pressure of carbon neutralization, building energy consumption becomes a soft rib for economic development in China. Building 3D prints and can make full use of and print intelligent control, makes the building one shot forming, can material saving 40%, can reduce technology loss and the energy consumption in the process of building simultaneously. The architectural 3D printing technique is a complementary, interdependent relationship with existing construction techniques. The 3D printing technology will undoubtedly promote the digital development of the manufacturing industry, and is beneficial to the realization of novel urbanization in China. The development of industrial production grade concrete 3D printing systems and concrete 3D printing projects derived from the industrial production grade concrete 3D printing systems has greater development potential in the future.
The printer head that commonly uses on the market at present extrudes the formula as an organic whole, the stirring machine is the stirring integrally, admixture (having the efficiency that promotes cement concrete setting and hardening) and mortar (be cementitious material and aggregate) can be put into the stirring machine from a feed inlet simultaneously and stir, the setting and hardening time section of the concrete slurry that admixture and mortar formed is the fixed value, the concrete slurry is carried in printing device's feed bin through PVC pump sending pipe, then in this section of time of extruding through the puddler, can have the concrete slurry to reach the setting and hardening time, and then harden, just cause following consequence: firstly, the newly mixed concrete slurry material is easy to accumulate at the corners of the storage bin to cause pipe blockage due to hardening; secondly, the pumping pipeline is long, because the concrete slurry is a hydraulic material, the concrete slurry is easy to solidify and difficult to clean, if the concrete slurry cannot be printed and conveyed in time, the concrete slurry can be solidified and hardened in the pipeline, so that the pipeline is blocked, and materials are wasted.
Disclosure of Invention
The invention aims to provide a building 3D printing head, which aims to solve the technical problem that concrete slurry is easy to reach a coagulation hardening state in advance and further to harden and block a pipe when concrete in the prior art is stirred by a stirrer and is pumped to a conveying pipe and a printing device. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a building 3D printing head which comprises a stirring device, a material extruding device, a connecting channel, a first driving device, a second driving device and a mounting seat, wherein the stirring device and the material extruding device are communicated through the connecting channel, the stirring device and the material extruding device are both positioned on the same side of the connecting channel, the first driving device and the second driving device are both positioned on the other side of the connecting channel, the stirring device is in transmission connection with the first driving device, the material extruding device is in transmission connection with the second driving device, the mounting seat is connected with the side surface of the connecting channel, and the mounting seat can be mounted on a platform;
the stirring device is provided with an additive feeding hole and a mortar feeding hole, the additive feeding hole is located above the mortar feeding hole, the additive feeding hole and the mortar feeding hole have height difference, mortar enters the stirring device from the mortar feeding hole, and additive enters the stirring device from the additive feeding hole.
Optionally, the stirring device includes a stirring barrel, a stirring mechanism and a material pushing mechanism, the open end of the stirring barrel is connected with the connecting channel, the stirring mechanism is located in the stirring barrel, and the first end of the stirring mechanism penetrates through the connecting channel and is connected with the first driving device; the pushing mechanism is located in the connecting channel, the stirring mechanism is sleeved with the pushing mechanism, and the additive feeding port and the mortar feeding port are arranged on the stirring barrel.
Optionally, the stirring mechanism includes a transmission shaft and a stirring wheel, the transmission shaft penetrates through the stirring wheel and is connected with the stirring wheel in a matching manner, and the pushing mechanism is mounted on the transmission shaft at a position close to the first end; the stirring mechanism is in transmission connection with the first driving device through the transmission shaft;
the stirring wheel comprises a stirring rod and a rotating disc, the transmission shaft penetrates through the rotating disc, the rotating disc is detachably connected with the transmission shaft, and the stirring rod is detachably installed on the outer peripheral side of the rotating disc.
Optionally, the number of the stirring wheels is multiple, all the stirring wheels are arranged at intervals along the axial direction of the transmission shaft, and all the stirring wheels are positioned on one side of the material pushing mechanism;
the number of the stirring rods on one stirring wheel is multiple, and the stirring rods are distributed along the circumferential direction of the rotating disc.
Optionally, the pushing mechanism includes a baffle and an arc-shaped pushing piece, the transmission shaft penetrates through the baffle and is connected with the baffle in a matching manner, and the arc-shaped pushing piece is fixedly connected with the baffle; the number of the arc-shaped material pushing pieces is multiple, and all the arc-shaped material pushing pieces are distributed along the circumferential direction of the baffle.
Optionally, the extrusion device comprises an extrusion cylinder, a nozzle and an extrusion mechanism, one end of the extrusion cylinder is connected with the connecting channel, the other end of the extrusion cylinder is detachably connected with the nozzle, the extrusion mechanism is located in the extrusion cylinder, and one end of the extrusion mechanism penetrates through the connecting channel and is connected with the second driving device.
Optionally, the extruding mechanism comprises an extruding rod, a spiral stirring sheet and a stirring frame, the spiral stirring sheet is fixedly connected with the extruding rod, one end of the extruding rod penetrates through the connecting channel and is connected with the second driving device, and the stirring frame is fixedly connected with the extruding rod.
Optionally, the connecting channel comprises a communicating cylinder, an upper cover and a lower cover, the upper end of the communicating cylinder is connected with the upper cover, and the lower end of the communicating cylinder is connected with the lower cover;
the lower cover is provided with a first connecting hole and a second connecting hole, the first connecting hole is connected with a stirring barrel on the stirring device, and the second connecting hole is connected with a material extruding barrel on the material extruding device;
the upper cover is provided with a third connecting hole, a fourth connecting hole and a fifth connecting hole, a transmission shaft on the stirring device can penetrate through the third connecting hole, an extruding rod on the extruding device can penetrate through the fourth connecting hole, the number of the fifth connecting holes is multiple, and the first driving device and the second driving device are connected with the fifth connecting hole through bolts.
The invention provides a building 3D printing head, when in use, firstly, mortar (namely gelled material and aggregate) is conveyed into a stirring device from a mortar feeding port and is stirred, because the height difference exists between an additive feeding port and the mortar feeding port, the mortar can be preliminarily mixed to form slurry, when the slurry rises to the additive feeding port, the additive is conveyed into the stirring device from the additive feeding port and is mixed and stirred with the slurry, and the slurry is stirred by a material extruding device, the mixing and stirring time of the additive and the slurry is shorter than the mixing and stirring time of the mortar in the prior art, further, the formed concrete slurry can be sprayed out from the material extruding device and enters a printing device before the coagulation and hardening time is reached, the device utilizes the height difference between the additive feeding port and the mortar feeding port to reduce the contact time of the mortar and the additive, the time that the concrete slurry begins to condense and harden is further delayed, the mobility of the concrete slurry in the printing head of building 3D and the process of conveying to the printing device is kept, and the risk of pipe blocking due to hardening is reduced, so that the technical problem that when the concrete in the prior art is stirred by a stirrer and conveyed to a conveying pipe and the printing device through a pump, the concrete slurry is easy to reach the state of condensing and hardening in advance, and then pipe blocking due to hardening is generated is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a building 3D printing head provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of another side of a building 3D print head provided by an embodiment of the invention;
FIG. 3 is an exploded view of a building 3D printhead provided by an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a building 3D printhead provided by an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a stirring mechanism and a material pushing mechanism of a building 3D printing head provided by an embodiment of the invention;
FIG. 6 is a schematic structural diagram of a material extruding mechanism for building a 3D printing head according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a connection channel of a building 3D printing head provided by an embodiment of the invention;
FIG. 8 is a schematic structural diagram of another side of a connecting channel of a building 3D printing head provided by an embodiment of the invention;
in figure 1, a stirring device; 11. an additive feeding port; 12. a mortar feed port; 13. a stirring barrel; 14. a stirring mechanism; 141. a drive shaft; 142. a stirring rod; 143. rotating the disc; 15. a material pushing mechanism; 151. a baffle plate; 152. an arc-shaped material pushing sheet; 2. a material extruding device; 21. extruding the material barrel; 22. a spray head; 23. a material extruding mechanism; 231. extruding a material rod; 232. a spiral stirring sheet; 233. a stirring frame; 3. a connecting channel; 31. a communication cylinder; 32. an upper cover; 321. a third connection hole; 322. a fourth connection hole; 323. a fifth connecting hole; 33. a lower cover; 331. a first connection hole; 332. a second connection hole; 4. a first driving device; 5. a second driving device; 6. and (7) mounting a seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Example 1:
the invention provides a building 3D printing head, which comprises a stirring device 1, an extruding device 2, a connecting channel 3, a first driving device 4, a second driving device 5 and a mounting seat 6, wherein the stirring device 1 and the extruding device 2 are communicated through the connecting channel 3, the stirring device 1 and the extruding device 2 are both positioned at the same side of the connecting channel 3, namely the stirring device 1 and the extruding device 2 are both positioned below the connecting channel 3, the first driving device 4 and the second driving device 5 are both positioned above the connecting channel 3, the stirring device 1 corresponds to the first driving device 4, the stirring device 1 is in transmission connection with the first driving device 4, the first driving device 4 can drive the stirring device 1 to stir concrete slurry, the extruding device 2 corresponds to the second driving device 5, the extruding device 2 is in transmission connection with the second driving device 5, the second driving device 5 drives the extruding device 2 to stir concrete, the mounting seat 6 is connected with the side surface of the connecting channel 3, and the mounting seat 6 can be arranged on the platform;
be provided with admixture feed inlet 11 and mortar feed inlet 12 on agitating unit 1, admixture feed inlet 11 and mortar feed inlet 12 all are located agitating unit 1's lower half section, it is inside that the raw materials enters into from agitating unit 1's bottom, make the raw materials after the mixture rise to agitating unit 1's top through the packing of stirring and raw materials, the raw materials at top are at the propelling movement through agitating unit 1 through interface channel 3, enter into crowded material device 2, crowded material device 2 is through the stirring again, from the bottom blowout of crowded material device 2, admixture feed inlet 11 is located the top of mortar feed inlet 12 and there is the difference in height in admixture feed inlet 11 and mortar feed inlet 12, the mortar enters into agitating unit 1 from mortar feed inlet 12, the admixture enters into agitating unit 1 from admixture feed inlet 11. The invention provides a building 3D printing head, when in use, firstly, mortar (namely gelled material and aggregate) is conveyed into a stirring device 1 from a mortar feed port 12 and is stirred, because the height difference exists between an additive feed port 11 and the mortar feed port 12, the mortar can be preliminarily mixed to form slurry, when the slurry rises to the additive feed port 11, the additive is conveyed into the stirring device 1 from the additive feed port 11 and is mixed and stirred with the slurry, and is stirred by a material extruding device 2, the mixing and stirring time of the additive and the slurry is shorter than that of the additive and the mortar in the prior art, further, the formed concrete slurry can be sprayed out from the material extruding device 2 before the setting and hardening time of the concrete slurry is reached, and the concrete slurry enters a printing device, the device utilizes the height difference between the additive feed port 11 and the mortar feed port 12, the contact time of mortar and additive is reduced, the hardening time of concrete slurry is further delayed, the fluidity of the concrete slurry in the 3D printing head of a building and in the process of conveying the concrete slurry to a printing device is kept, and the risk of pipe blockage caused by hardening is reduced, so that the technical problem that when the concrete in the prior art is stirred by a stirrer and conveyed to a conveying pipe and the printing device through a pump, the concrete slurry is easy to reach the state of hardening in advance, and further pipe blockage caused by hardening is solved.
Example 2:
as an alternative embodiment, the stirring device 1 includes a stirring barrel 13, a stirring mechanism 14 and a material pushing mechanism 15, an open end of the stirring barrel 13 is connected with the connecting channel 3, the stirring mechanism 14 is located in the stirring barrel 13, a first end of the stirring mechanism 14 passes through the connecting channel 3 and is connected with the first driving device 4, and the first driving device 4 drives the stirring mechanism 14 to rotate, so that the stirring mechanism can stir the raw materials; the pushing mechanism 15 is located in the connecting channel 3, the pushing mechanism 15 is sleeved on the stirring mechanism 14, namely one end of the stirring mechanism 14 penetrates through the pushing mechanism 15, the stirring mechanism 14 is connected with the pushing mechanism 15, the pushing mechanism 15 can be driven to rotate when the stirring mechanism 14 rotates, when raw materials in the stirring device 1 contact the pushing mechanism 15, the pushing mechanism 15 can push the raw materials into the extruding device 2, and the additive feeding port 11 and the mortar feeding port 12 are arranged on the stirring barrel 13.
As an optional embodiment, the stirring mechanism 14 includes a transmission shaft 141 and a stirring wheel, the transmission shaft 141 penetrates through the stirring wheel and is in fit connection with the stirring wheel, and the pushing mechanism 15 is installed on the transmission shaft 141 at a position close to the first end; the stirring mechanism 14 is in transmission connection with the first driving device 4 through a transmission shaft 141, that is, one end of the transmission shaft 141 passes through the connecting channel 3 and is connected with the first driving device 4;
the stirring wheel comprises a stirring rod 142 and a rotating disc 143, the transmission shaft 141 penetrates through the rotating disc 143, the rotating disc 143 is detachably connected with the transmission shaft 141, the stirring rod 142 is detachably installed on the outer peripheral side of the rotating disc 143, the first driving device 4 can drive the transmission shaft 141 to rotate, the transmission shaft 141 drives the stirring rod 142 and the material pushing mechanism 15 to rotate, and raw materials can be stirred through rotation of the stirring rod 142.
As an optional embodiment, the number of the stirring wheels is multiple, all the stirring wheels are arranged at intervals along the axial direction of the transmission shaft 141, all the stirring wheels are located on one side of the material pushing mechanism 15, and the number of the stirring wheels is consistent with the number of the rotating discs 143;
the number of the stirring rods 142 on one stirring wheel is plural, and the plural stirring rods 142 are distributed along the circumferential direction of the rotating disk 143. The number and position of the stirring rod 142 and the rotating disk 143 can be selected according to the viscosity of the raw material.
As an alternative embodiment, the material pushing mechanism 15 includes a baffle 151 and an arc-shaped material pushing sheet 152, the transmission shaft 141 penetrates through the baffle 151 and is connected with the baffle 151 in a matching manner, the baffle 151 is used for preventing the raw material from being lifted upwards, the arc-shaped material pushing sheet 152 is fixedly connected with the baffle 151, and the arc-shaped material pushing sheet 152 can push the raw material accumulated at the baffle 151 to the side; the number of the arc-shaped material pushing pieces 152 is multiple, all the arc-shaped material pushing pieces 152 are distributed along the circumferential direction of the baffle 151, all the arc-shaped material pushing pieces 152 are located on one side, close to the rotating disc 143, of the baffle 151, and the arc-shaped structure of the arc-shaped material pushing pieces 152 is convenient for pushing raw materials.
Example 3:
as an alternative embodiment, the material extruding device 2 includes an extruding cylinder 21, a nozzle 22 and an extruding mechanism 23, one end of the extruding cylinder 21 is connected to the connecting channel 3, the joint of the extruding cylinder 21 and the connecting channel 3 is lower than the joint of the stirring barrel 13 and the connecting channel 3, so as to facilitate the raw material to enter into the extruding cylinder 21, the other end of the extruding cylinder 21 is detachably connected to the nozzle 22, the extruding cylinder 21 is in threaded connection with the nozzle 22, the diameter of the nozzle 22 has multiple specifications, the nozzles 22 with different diameters can be replaced as required, the raw material in the extruding cylinder 21 can be ejected from the nozzle 22, the extruding mechanism 23 is located in the extruding cylinder 21, one end of the extruding mechanism 23 passes through the connecting channel 3 and is connected to the second driving device 5, and the second driving device 5 can drive the extruding mechanism 23 to rotate and perform secondary stirring and extruding printing on the raw material.
As an alternative embodiment, the material extruding mechanism 23 includes an extruding rod 231, a spiral stirring plate 232 and a stirring frame 233, the spiral stirring plate 232 is fixedly connected to the extruding rod 231, one end of the extruding rod 231 passes through the connecting channel 3 and is connected to the second driving device 5, the stirring frame 233 is fixedly connected to the extruding rod 231, the stirring frame 233 is located at the upper half section of the extruding rod 231, the second driving device 5 drives the extruding rod 231 to rotate, the extruding rod 231 drives the spiral stirring plate 232 and the stirring frame 233 to rotate, and both the spiral stirring plate 232 and the stirring frame 233 can stir the raw material.
Example 4:
as an alternative embodiment, the connection channel 3 includes a communication cylinder 31, an upper cover 32 and a lower cover 33, the upper end of the communication cylinder 31 is connected with the upper cover 32, and the lower end of the communication cylinder 31 is connected with the lower cover 33;
the lower cover 33 is provided with a first connecting hole 331 and a second connecting hole 332, the first connecting hole 331 is connected with the stirring barrel 13 on the stirring device 1, the inside of the stirring barrel 13 is communicated with the inside of the communicating cylinder 31, the second connecting hole 332 is connected with the material extruding cylinder 21 on the material extruding device 2, and the inside of the material extruding cylinder 21 is communicated with the inside of the communicating cylinder 31;
the upper cover 32 is provided with a third connecting hole 321, a fourth connecting hole 322 and a fifth connecting hole 323, the transmission shaft 141 of the stirring device 1 can pass through the third connecting hole 321 and is connected with the first driving device 4, the material extruding rod 231 of the material extruding device 2 can pass through the fourth connecting hole 322 and is connected with the second driving device 5, the number of the fifth connecting holes 323 is multiple, and the first driving device 4 and the second driving device 5 are connected with the fifth connecting hole 323 through bolts. The first driving device 4 and the second driving device 5 both comprise motors and motor bases, the motor bases are connected with the fifth connecting holes 323 through bolts, and the motors are installed on the motor bases.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (3)
1. A3D printing head for buildings is characterized by comprising a stirring device (1), an extruding device (2), a connecting channel (3), a first driving device (4), a second driving device (5) and a mounting seat (6),
the stirring device (1) and the extruding device (2) are communicated through the connecting channel (3), the stirring device (1) and the extruding device (2) are both positioned at the same side of the connecting channel (3), the first driving device (4) and the second driving device (5) are both positioned at the other side of the connecting channel (3), the stirring device (1) is in transmission connection with the first driving device (4), the extruding device (2) is in transmission connection with the second driving device (5), the mounting seat (6) is connected with the side surface of the connecting channel (3), and the mounting seat (6) can be mounted on a platform;
an additive feeding hole (11) and a mortar feeding hole (12) are formed in the stirring device (1), the additive feeding hole (11) is located above the mortar feeding hole (12), the height difference exists between the additive feeding hole (11) and the mortar feeding hole (12), mortar enters the stirring device (1) from the mortar feeding hole (12), and additive enters the stirring device (1) from the additive feeding hole (11);
the stirring device (1) comprises a stirring barrel (13), a stirring mechanism (14) and a material pushing mechanism (15), wherein the open end of the stirring barrel (13) is connected with the connecting channel (3), the stirring mechanism (14) is positioned in the stirring barrel (13), and the first end of the stirring mechanism (14) penetrates through the connecting channel (3) and is connected with the first driving device (4); the pushing mechanism (15) is positioned in the connecting channel (3), the stirring mechanism (14) is sleeved with the pushing mechanism (15), and the additive feeding hole (11) and the mortar feeding hole (12) are arranged on the stirring barrel (13);
the stirring mechanism (14) comprises a transmission shaft (141) and a stirring wheel, the transmission shaft (141) penetrates through the stirring wheel and is connected with the stirring wheel in a matching manner, and the material pushing mechanism (15) is arranged on the transmission shaft (141) and is close to the first end; the stirring mechanism (14) is in transmission connection with the first driving device (4) through the transmission shaft (141);
the stirring wheel comprises a stirring rod (142) and a rotating disc (143), the transmission shaft (141) penetrates through the rotating disc (143), the rotating disc (143) is detachably connected with the transmission shaft (141), and the stirring rod (142) is detachably mounted on the outer peripheral side of the rotating disc (143);
the pushing mechanism (15) comprises a baffle (151) and an arc-shaped pushing sheet (152), the transmission shaft (141) penetrates through the baffle (151) and is connected with the baffle in a matching manner, and the arc-shaped pushing sheet (152) is fixedly connected with the baffle (151); the number of the arc-shaped material pushing sheets (152) is multiple, and all the arc-shaped material pushing sheets (152) are distributed along the circumferential direction of the baffle (151);
the extruding device (2) comprises an extruding cylinder (21), a spray head (22) and an extruding mechanism (23), one end of the extruding cylinder (21) is connected with the connecting channel (3), the other end of the extruding cylinder (21) is detachably connected with the spray head (22), the extruding mechanism (23) is positioned in the extruding cylinder (21), and one end of the extruding mechanism (23) penetrates through the connecting channel (3) and is connected with the second driving device (5);
crowded material mechanism (23) are including crowded material pole (231), spiral stirring piece (232) and stirring frame (233), spiral stirring piece (232) with crowded material pole (231) fixed connection, the one end of crowded material pole (231) is passed connect channel (3) and with second drive arrangement (5) are connected, stirring frame (233) with crowded material pole (231) fixed connection.
2. The building 3D printing head according to claim 1, wherein the number of the stirring wheels is multiple, all the stirring wheels are arranged at intervals along the axial direction of the transmission shaft (141), and all the stirring wheels are positioned on one side of the material pushing mechanism (15);
the number of the stirring rods (142) on one stirring wheel is multiple, and the stirring rods (142) are distributed along the circumferential direction of the rotating disc (143).
3. The building 3D print head according to claim 1, characterized in that the connecting channel (3) comprises a communication cylinder (31), an upper cover (32) and a lower cover (33), the upper end of the communication cylinder (31) being connected with the upper cover (32), the lower end of the communication cylinder (31) being connected with the lower cover (33);
a first connecting hole (331) and a second connecting hole (332) are formed in the lower cover (33), the first connecting hole (331) is connected with a stirring barrel (13) on the stirring device (1), and the second connecting hole (332) is connected with a material extruding barrel (21) on the material extruding device (2);
the upper cover (32) is provided with a third connecting hole (321), a fourth connecting hole (322) and a fifth connecting hole (323), a transmission shaft (141) on the stirring device (1) can penetrate through the third connecting hole (321), an extruding rod (231) on the extruding device (2) can penetrate through the fourth connecting hole (322), the number of the fifth connecting holes (323) is multiple, and the first driving device (4) and the second driving device (5) are connected with the fifth connecting hole (323) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110725162.1A CN113431330B (en) | 2021-06-29 | 2021-06-29 | Building 3D printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113400464B (en) * | 2021-07-02 | 2023-04-14 | 南京能娃新型材料科技有限公司 | Cement mortar preparation process |
| WO2023138740A1 (en) * | 2022-01-18 | 2023-07-27 | Cobod International A/S | A printing unit for use in a 3d construction printing system, a 3d construction printing system, and a method for 3d printing a construction |
| CN114776009A (en) * | 2022-04-21 | 2022-07-22 | 南京嘉翼精密机器制造股份有限公司 | Building concrete 3D beats printer head and 3D printer |
| CN114922493A (en) * | 2022-05-17 | 2022-08-19 | 广东颐和建设有限公司 | Modular prefabricated house construction method |
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| CN113431330A (en) | 2021-09-24 |
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