CN218876300U

CN218876300U - A printer head is beaten in extrusion of lightweight solid-liquid front end for 3D prints

Info

Publication number: CN218876300U
Application number: CN202223256373.4U
Authority: CN
Inventors: 王俊鹏
Original assignee: Beijing Reit Technology Development Co ltd
Current assignee: Beijing Ruitu Equipment Technology Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-04-18
Anticipated expiration: 2032-12-06

Abstract

The utility model relates to a 3D prints the field, specifically discloses a lightweight solid-liquid front end mixed extrusion printing head for 3D prints, including last casing, it is provided with the arch to go up the casing bottom, and the casing top is provided with the recess down, goes up casing and lower casing embedded connection, and the junction uses the clamp fixed, and fixed mounting has power stirring to extrude the core in the cavity that last casing and casing constitute down, is provided with liquid mixing batching pipe at the casing middle part down, and it is top that the core is decided to lower casing lower extreme installation power stirring extrudes the core, and it has the replaceable nozzle of extruding to decide the top lower extreme demountable installation of core at power stirring extrusion core. According to the technical scheme, the 3D printing is realized by directly extruding, molding and curing after the materials and one or more auxiliary agents in proper proportion are fully mixed and stirred.

Description

A printer head is beaten in extrusion of lightweight solid-liquid front end for 3D prints

Technical Field

The utility model relates to a 3D prints technical field, specifically is a lightweight solid-liquid front end mixed extrusion who is used for 3D to print beats printer head, and the 3D who is particularly useful for large-scale handicraft and building field prints rapid manufacturing.

Background

Present 3D printer, and the output device of 3D printer use 3D to beat printer head, and 3D beats printer head's ejection of compact mode and divide into two kinds again and extrude the formula and beat printer head another kind be exactly the shower nozzle beat printer head, in addition extrude the formula and beat printer head and the combination formula that the shower nozzle made up and beat printer head, beat printer head and be the important component accessory of 3D printer.

The printing head in the technical scheme can directly use various common building materials such as cement, gypsum and the like, and can also widely use various industrial wastes such as: one or more powder mixtures of fly ash, various mud ashes, tailings, agricultural byproduct degradable fibers and the like are used as fillers for processing and treating, and the method has practical significance for comprehensively recycling a large amount of solid wastes, saving energy, reducing emission and consumption and performing additive manufacturing on large-scale products.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a printer head is beaten in the mixed extrusion of lightweight solid-liquid front end for 3D prints has solved the problem that provides in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a printer head is beaten in mixed extrusion of lightweight solid-liquid front end for 3D prints, which comprises an upper housing, it is provided with the arch to go up the casing bottom, the casing top is provided with the recess down, go up casing and the embedded connection of casing down, the junction uses the clamp fixed, fixed mounting has the power stirring to extrude the core in the cavity that last casing constitutes with casing down, casing middle part is provided with liquid mixture batching pipe down, it is top that the core is decided to the lower extreme installation of casing down has the power stirring to extrude the core, it has the replaceable nozzle of extruding to decide the top lower extreme demountable installation of core at the power stirring. The upper shell comprises a feed inlet, the feed inlet is arranged at the top of the upper shell, and a full-material limiting sensor is arranged on the side surface of the upper shell. The lower shell further comprises a shell, a material shortage limiting sensor is arranged on the side face of the shell, an annular distributing pipe is arranged in the middle of the shell, the shell is connected with the annular distributing pipe through a small distribution liquid pipe, a liquid feeding nozzle is arranged at one end, close to the shell, of the small distribution liquid pipe, the annular distributing pipe is connected with a main liquid outlet pipe, a liquid mixing pipe is arranged above the main liquid outlet pipe, and a plurality of liquid inlet pipes are arranged above the liquid mixing pipe. The power stirring extrusion core comprises a pneumatic motor, a speed reducer is installed at the lower end of the pneumatic motor in a rotating mode, a speed reducer support is arranged outside the speed reducer, a speed reducer support fixing shell is fixedly installed on the periphery of the speed reducer support, a stirring extrusion rod is installed below the speed reducer and comprises a main shaft, the main shaft is connected with the speed reducer, two tail end bin scraping pull pieces are fixedly installed at the upper end of the main shaft, a stirring paddle pair and a shearing paddle pair are installed in the middle of the main shaft in a cross mode, an extrusion material returning torque-changing auger is spirally wound on the lower portion of the main shaft, and an extrusion rod core fixing hole is formed in the top end of the main shaft.

As an preferred embodiment of this application technical scheme, the spacing sensor that lacks material that is located the casing down detects control and lacks material and starts the feeding when spacing down, and the material gets into the feed bin through last casing feed inlet through pneumatics or electronic mode to the material that is located the upper housing in the feed bin is full the spacing sensor and is detected control material and is full back spacing stop feeding.

As a preferred embodiment of this application technical scheme, liquid raw and other materials get into the liquid mixing pipe intensive mixing through the feed liquor pipe, get into annular distributing pipe through main drain pipe, get into by annular distributing pipe again and let in the liquid tubule of distributing more than the passageway of casing down, through the tubule evenly crowded casing inside with the solid mixture, through control liquid flow, the liquid that gets into through liquid feed nozzle can realize the mixed material of different viscosities with the solid.

As an optimal implementation mode of the technical scheme, the pneumatic motor of the power stirring extruder core drives the stirring extrusion rod after passing through the speed reducer, and the stirring extrusion rod drives the stirring paddle pair, the shearing paddle pair and the material pushing torque-changing screw.

As an optimal implementation mode of this application technical scheme, power stirring extrusion core passes through the stable fastening of clamp and is gone up between casing and the lower casing, can realize whole quick dismantlement and washing, and it can not appear the beat to stabilize stirring extrusion pole center pin through power stirring extrusion core centering top and make it in the operation in-process.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the consumable is directly conveyed to the printing head in the form of raw materials and then is mixed with the auxiliary agent for extrusion, the consumable is conveyed according to the amount of the used consumable, the printing material is not required to be mixed in advance and then is conveyed through a high-pressure pump pipeline, high-power stirring and extrusion equipment is omitted, a large amount of energy consumption is saved, and the waste of material preparation intermediate links and consumable error estimation is reduced

The extruder uses the pneumatic motor with compressed air drive, drives the stirring after speed reducer reduction increases the moment of torsion and extrudes the pole and realize stirring and extrude, and compressed air conveniently adjusts output with the mode of regulating pressure.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a lightweight solid-liquid front end mixing extrusion printing head for 3D printing according to the present invention;

fig. 2 is a schematic structural view of an upper housing of a lightweight solid-liquid front-end mixing extrusion printhead for 3D printing according to the present invention;

fig. 3 is a structural schematic diagram of a lower casing of a lightweight solid-liquid front-end mixing extrusion printing head for 3D printing according to the present invention;

fig. 4 is a schematic structural view of a power stirring extrusion core of a lightweight solid-liquid front end mixing extrusion printing head for 3D printing according to the present invention;

fig. 5 is the utility model relates to a lightweight solid-liquid front end mixes to extrude and beats stirring extrusion rod structure sketch map of printer head for 3D prints.

In the figure: 1. an upper housing; 2. clamping a hoop; 3. a power stirring extruder core; 4. a lower housing; 5. a liquid mixing and dispensing tube; 6. a core fixing center is extruded by dynamic stirring; 7. the extrusion nozzle can be replaced; 11. a feed inlet; 12. a full material limit sensor; 31. a pneumatic motor; 32. a speed reducer; 33. a reducer bracket; 34. the reducer bracket fixes the shell; 35. a stirring extrusion rod; 36. a main shaft; 37. a tail end bin scraping and shifting sheet; 38. stirring paddle pairs; 39. shearing a paddle pair; 310. extruding and pushing a material to change the torque dragon; 311. extruding a rod core fixing hole; 41. a housing; 42. a starved limit sensor; 43. a liquid inlet pipe; 44. a liquid mixing pipe; 45. a main liquid outlet pipe; 46. an annular distribution pipe; 47. a dispensing outlet pipe; 48. a liquid supply nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

As shown in fig. 1, the utility model provides a technical solution: the utility model provides a printer head is beaten in mixed extrusion of lightweight solid-liquid front end for 3D prints, including last casing 1, it is connected with casing 4 down to go up casing 1, it is provided with the arch to go up casing 1 bottom, casing 4 top is provided with the recess down, it is connected with casing 4 is embedded down to go up casing 1, the junction uses clamp 2 fixed, fixed mounting has power stirring to extrude core 3 in the cavity that last casing 1 and casing 4 constitute down, be provided with liquid mixing batching pipe 5 at casing 4 middle part down, it extrudes core fixed core top 6 to install power stirring down casing 1 lower extreme, extrude the top 6 lower extreme demountable installation of core fixed core at power stirring and can replace and extrude nozzle 7.

In an embodiment of the present invention, the material shortage limit sensor 42 of the lower housing 4 detects and controls the material shortage to start feeding when the lower limit is reached. The material enters the feed bin through the feed inlet 11 of the upper shell 1 in a pneumatic or electric mode, the full-material limit sensor 2 positioned in the upper shell 1 in the feed bin detects and controls the full-material limit to stop feeding, the liquid raw material enters the liquid mixing pipe 44 through the liquid inlet pipe 43 to be fully mixed, enters the annular distribution pipe 46 through the main liquid outlet pipe 45, enters the more than one passage which is communicated with the lower shell 4 through the annular distribution pipe 46 to be distributed into the small liquid outlet pipes 47, is uniformly extruded into the shell through the small pipes to be mixed with the solid, and is sprayed through liquid feeding by controlling the liquid flow, 48 the liquid that gets into and the mixed material of different viscosity can be realized, the pneumatic motor of power stirring extruder core drives the stirring extrusion pole behind the speed reducer, the stirring is extruded, 35 drives stirring and dials oar pair 38, the shearing oar pair 39 and pushes away material moment changing dragon 310, power stirring extruder core 3 is stably fastened between upper housing 1 and lower housing 4 through clamp 2, can realize whole quick dismantlement and washing, extrude core centering top 6 through the power and stably stir the extrusion pole 35 center pin and make it can not appear the beat in the operation in-process.

In the technical scheme, materials enter the stock bin through the feed inlet 11 of the upper shell 1 in a pneumatic or electric mode, and the full-material limit sensor 12 positioned in the upper shell 1 in the stock bin detects and controls the full-material limit to stop feeding.

According to the technical scheme, as shown in fig. 2, the upper shell 1 comprises a feeding hole 11, the feeding hole 11 is formed in the top of the upper shell 1, and a full material limit sensor 12 is arranged on the side surface of the upper shell 1.

In the technical scheme, a material shortage limit sensor 12 positioned in a lower shell 1 detects and controls the material shortage to start feeding when the material shortage reaches a lower limit, liquid raw materials enter a liquid mixing pipe 44 through a liquid inlet pipe 43 to be fully mixed, enter an annular distribution pipe 46 through a main liquid outlet pipe 45, enter more than one passage communicated with the lower shell 4 through the annular distribution pipe 46 to be distributed into a liquid outlet small pipe 47, are uniformly extruded into the shell through the small pipe to be mixed with solids, and through controlling the liquid flow, the mixed materials with different viscosities can be realized through the liquid and the solids entering through a liquid feeding nozzle 48.

In some technical solutions, referring to fig. 3, the lower housing 4 further includes a casing 41, a material shortage limit sensor 42 is disposed on a side surface of the casing 41, an annular distribution pipe 46 is disposed in a middle portion of the casing 41, the casing 41 is connected to the annular distribution pipe 46 through a small distribution liquid outlet pipe 47, a liquid supply nozzle 48 is disposed at one end of the small distribution liquid outlet pipe 47 close to the casing 41, the annular distribution pipe 46 is connected to a main liquid outlet pipe 45, a liquid mixing pipe 44 is disposed above the main liquid outlet pipe 45, and a plurality of liquid inlet pipes 43 are disposed above the liquid mixing pipe 44.

In the technical scheme, the pneumatic motor 31 of the power stirring extruder core 3 drives the stirring extrusion rod 35 after passing through the speed reducer 32, the stirring extrusion rod 35 drives the stirring paddle pair 38, the shearing paddle pair 39 and the material pushing and torque converting screw 310, the power stirring extruder core 3 is stably fastened between the upper shell 1 and the lower shell 4 through the hoop 2, the whole body can be rapidly disassembled and cleaned, and the center shaft of the stirring extrusion rod 35 is stably stabilized through the power stirring extrusion core fixing center 6 so that the central shaft of the stirring extrusion rod 35 cannot be deflected in the operation process.

Referring to fig. 4 in some technical solutions, the power stirring extrusion core 3 includes a pneumatic motor 31, a speed reducer 32 is rotatably installed at a lower end of the pneumatic motor 31, a plurality of speed reducer supports 33 are installed outside the speed reducer 32, a speed reducer support fixing housing 34 is further fixedly installed on a periphery of the speed reducer supports 33, and a stirring extrusion rod 35 is installed below the speed reducer 32.

In the technical scheme, the stirring paddle pair 38 and the shearing paddle pair 39 are thick in the middle of the outer shape, the front edge and the rear edge are in the shape of a blade, and the cross section is wavy, so that the stirring extrusion and the flowing of materials in the mixing process are facilitated. When the stirring extrusion rod 35 is in a vertical state, the stirring paddle pair 38 is arranged at an angle smaller than plus or minus 25 degrees in a horizontal state, the shearing paddles are arranged at an angle of 0 degree, the stirring paddle pair 38 and the shearing paddle pair 39 adopt an upper and lower pairwise arrangement mode, the upper stirring paddle pair 38 stirs and rapidly stirs the material downwards, the lower shearing paddle pair 39 cuts and disperses the material and slowly stirs the material downwards, and the material can be continuously sheared, stirred and extruded in the downward extrusion process at different paddle speeds, so that the material can be uniformly mixed with solid and liquid. The semi-dry or viscous materials are uniformly mixed and stirred, the materials which are quickly and fully reacted and fully mixed are obtained during curing, extruded and compressed through the extrusion material pushing torque conversion dragon 310, and then extruded through the extrusion nozzle for curing and molding.

Referring to fig. 5 in some technical solutions, the stirring and extruding rod 35 includes a main shaft 36, the main shaft 36 is connected to the speed reducer 32, two tail bin scraping and pulling pieces 37 are fixedly installed at the upper end of the main shaft 36, a stirring and pulling screw pair 38 and a shearing and pulling screw pair 39 are installed in the middle of the main shaft 36 in a crossed manner, an extruding and returning torque conversion screw 310 is spirally wound on the lower portion of the main shaft 36, and an extruding rod core fixing hole 311 is formed in the top end of the main shaft 36.

The working principle is as follows: the material shortage limit sensor 42 positioned on the lower shell 4 detects and controls the material shortage to start feeding when reaching the lower limit. The material enters the feed bin through the feed inlet of the upper shell 1 in a pneumatic or electric mode, the full material limit sensor 12 positioned in the upper shell 1 in the feed bin detects and controls the full material to stop feeding in a limiting mode, liquid raw materials enter the liquid mixing pipe 44 through the liquid inlet pipe 43 to be fully mixed, the liquid raw materials enter the annular distribution pipe 46 through the main liquid outlet pipe 45, then enter the more than one passage which is communicated with the lower shell 4 through the annular distribution pipe 46 to be distributed into the small liquid outlet pipe 47, the small liquid outlet pipe is uniformly extruded into the lower shell 4 to be mixed with the solid, the liquid and the solid entering through the liquid supply nozzle 48 can realize mixed materials with different viscosities by controlling the liquid flow, the pneumatic motor 31 of the power stirring extruder core 3 drives the stirring extruder rod 35 through the speed reducer 32, the stirring extruder rod 35 drives the stirring paddle pair 38, the shearing paddle pair 39 and the extrusion torque-changing screw 310, the power stirring extruder core 3 is stably fastened between the upper shell 1 and the lower shell 4 through the hoop 2, the whole quick disassembly and cleaning can be realized, and the center shaft center of the stable stirring extruder core 35 can not deviate in the running process through the power stirring extruder core 6. The stirring paddle pair 38 and the shearing paddle pair 39 are thick in the middle of the outer shape, the front edge and the rear edge are in the shape of cutting edges, and the cross section is wavy, so that the stirring extrusion and the flowing of materials in the mixing process are facilitated. When the stirring extrusion rod 35 is in a vertical state, the stirring paddle pairs 38 are arranged at an angle smaller than plus or minus 25 degrees in a horizontal state, the shearing paddles are arranged at an angle of 0 degree and are in a stirring paddle pair 38, the shearing paddle pairs 39 are arranged in pairs, the upper stirring paddle pair 38 stirs the material and rapidly stirs the material downwards, the lower shearing paddle pair 39 cuts and disperses the material and slowly stirs the material downwards, and the material can be continuously sheared, stirred and extruded in the downward extrusion process at different paddle speeds, so that the material can be uniformly mixed with solid and liquid. The semi-dry or viscous materials are uniformly mixed and stirred, the materials which are quickly and fully reacted and fully mixed are extruded and compressed by the extrusion pushing torque conversion dragon 310 during curing, and then are extruded and cured through the extrusion nozzle, and the replaceable extrusion nozzle 7 can be replaced with different calibers according to actual requirements and is matched with corresponding extrusion speeds to obtain different printing effects.

Claims

1. The utility model provides a printer head is beaten in mixture extrusion of lightweight solid-liquid front end for 3D prints, includes casing (1), its characterized in that: go up casing (1) bottom and be connected with casing (4) down, it is provided with the arch to go up casing (1) bottom, casing (4) top is provided with the recess down, goes up casing (1) and casing (4) embedded connection down, and the junction uses clamp (2) to fix, fixed mounting has power stirring to extrude core (3) in the cavity that goes up casing (1) and casing (4) down and constitutes, casing (4) middle part is provided with liquid mixing batching pipe (5) down, casing (4) lower extreme is installed power stirring and is extruded core and decide core top (6) down, power stirring is extruded core and is decided core top (6) lower extreme demountable installation and can be replaced and extrude nozzle (7).

2. The lightweight solid-liquid front end hybrid extrusion printhead for 3D printing of claim 1, wherein: go up casing (1) including feed inlet (11), feed inlet (11) set up the top at last casing (1), it is full spacing sensor (12) to go up casing (1) side to be provided with the material.

3. The lightweight solid-liquid front end compounding extrusion printhead for 3D printing of claim 1, wherein: the lower shell (4) further comprises a shell (41), a material shortage limiting sensor (42) is arranged on the side face of the shell (41), an annular distribution pipe (46) is arranged in the middle of the shell (41), the shell (41) is connected with the annular distribution pipe (46) through a distribution liquid outlet small pipe (47), a liquid supply nozzle (48) is arranged at one end, close to the shell (41), of the distribution liquid outlet small pipe (47), the annular distribution pipe (46) is connected with a main liquid outlet pipe (45), a liquid mixing pipe (44) is arranged above the main liquid outlet pipe (45), and a plurality of liquid inlet pipes (43) are arranged above the liquid mixing pipe (44).

4. The lightweight solid-liquid front end hybrid extrusion printhead for 3D printing of claim 1, wherein: power stirring extruder core (3) include pneumatic motor (31), pneumatic motor (31) lower extreme rotates installs reduction gear (32), reduction gear (32) outside is provided with a plurality of reduction gear supports (33), reduction gear support (33) periphery still fixed mounting have reduction gear support fixed shell (34), stirring extrusion pole (35) are installed to reduction gear (32) below.

5. The lightweight solid-liquid front end hybrid extrusion printhead for 3D printing of claim 4, wherein: stirring extrusion pole (35) are including main shaft (36), main shaft (36) link to each other with reduction gear (32), main shaft (36) upper end fixed mounting has two terminal feed bin scrapes material plectrum (37), main shaft (36) middle part cross arrangement has stirring to dial oar pair (38) and cuts oar pair (39), main shaft (36) lower part spiral is around having extrusion to push away material torque conversion flood dragon (310), main shaft (36) top is provided with extrudes pole centering hole (311).