CN207240424U - A kind of array nozzle suitable for cement-based material 3D printing system - Google Patents

Abstract

It the utility model is related to a kind of array nozzle suitable for cement-based material 3D printing system, it is characterised in that the array nozzle includes nozzle housing and array nozzle mechanism；The nozzle housing includes bottom plate, side wall, partition plate, cover board, V-arrangement support plate and worm reduction gear shell, the cross section of the bottom plate is W types, spout is provided with two minimum points of W type bottom plates, multiple spouts are equally spaced along the length direction of bottom plate, the top Liang Ge sides of W type bottom plates are fixedly connected with side wall, and bottom plate and side wall are in integrally back taper；The lower part of end face support V-arrangement support plate, the V-arrangement support plate are arranged in parallel up and down with bottom plate among the top of W type bottom plates, the perforate in the V-arrangement support plate of corresponding nozzle exit area；Set in the space that bottom plate in V-arrangement support plate is surrounded with side wall and be arranged symmetrically two partition plates, cover board is fixed on the top of two partition plates, and seal silo, the exterior feeding machanism of seal silo top connection are formed between partition plate, V-arrangement support plate and adjacent side wall.

Description

A kind of array nozzle suitable for cement-based material 3D printing system

Technical field

It the utility model is related to and belong to 3D printing mechanical equipment technical field, and in particular to one kind is suitable for cement-based material The array nozzle of 3D print systems.

Background technology

In recent years, with the great infrastructure in China and the fast development of energy project construction, water power high slope, highway and Railway tunnel, underground hole group, nuclear power station basis, nuclear waste storage, underground oil and gas storage, mineral exploration and exploitation, shale oil gas and ground The Important Projects such as heat exploitation are directed to the complicated geological structure with tomography and three-dimensional fracture network rock mass.Physical experiments It is one of main research means in geotechnical engineering field, its basis is to prepare the physics for being capable of accurate Characterization complicated geological structure Model.Due to the presence of these discontinuity surfaces and body in rock mass, still made intricately without ripe method in the world at present The threedimensional model of matter structure physical test.

3D printing technique is a kind of rising in recent years, including all many-sided cutting edge technology knowledge, has high-tech content Manufacturing technology, obtained in fields such as biologic medical, space flight and aviation, mold manufacturing, electronic information manufacture, automobile makings wide General application.The base that the complicated geological structural model of large scale is exploration Geological Hazard mechanism is made with 3D printing technique Plinth.The great advantage of 3D printing technique can be achieved on the controllability and reproducibility of model, be suitable for the experiment of repeatability Research.

It is an extensive application prospect by the making that 3D printing technique is applied to complicated geological structure physical model Science and technology.Core component of the printing head as 3D printing technique, it is successfully researched and developed for solving association area engineering problem Have great importance., it is necessary to according to the dimensional accuracy of printer model and model internal junction in engineering geological comparison making The complexity of structure changes the width of printing in real time, and printing head of the prior art is fixed dimension, in print procedure In cannot be adjusted.

Notification number is that the Chinese patent of CN104191494B discloses a kind of new-type heat-melting cement 3D printing head, its major function For that can realize the 3D printing of the materials such as temperature height, poor fluidity.The printhead is by hot material conveying device and cold burden conveying device Two parts form, and are designed primarily directed to this only certain material of cement of new-type heat-melting cement, and designed 3D Printhead is only applicable to the printing of common building thing.But in engineering geological comparison making, if only using cement as former Material, without fine sand, aggregate etc. in raw material, then the strength of materials can not be guaranteed.The making of engineering geological comparison at the same time, more The complexity of model internal structure is paid close attention to, and needs the printing nozzle of the bigger scale of construction.And in the prior art not for complexity New-type heat-melting cement 3D shown in the general big scale of construction cement-based material 3D printing nozzle that geologic structure model makes, Fig. 1 and Fig. 2 Printhead can not carry out complicated geological structural model making.

Utility model content

In view of above-mentioned technical problem, the utility model provides a kind of array suitable for cement-based material 3D printing system Formula nozzle.The nozzle is designed specifically for cement-based material 3D printing system, is array, can be in print procedure in real time The switch of each nozzle is controlled, so as to adjust overall print span.

The utility model solves the technical solution that the technical problem uses：One kind is provided and is suitable for cement-based material 3D The array nozzle of print system, it is characterised in that the array nozzle includes nozzle housing and array nozzle mechanism；The spray Head shell includes bottom plate, side wall, partition plate, cover board, V-arrangement support plate and worm reduction gear shell, and the cross section of the bottom plate is W Type, spout is provided with two minimum points of W type bottom plates, and multiple spouts are equally spaced along the length direction of bottom plate, W type bottom plates Top Liang Ge sides are fixedly connected with side wall, and bottom plate and side wall are in integrally back taper；Support V in end face among the top of W type bottom plates The lower part of shape support plate, the V-arrangement support plate are arranged in parallel up and down with bottom plate, are opened in the V-arrangement support plate of corresponding nozzle exit area Hole；Set in the space that bottom plate in V-arrangement support plate is surrounded with side wall and be arranged symmetrically two partition plates, the top of two partition plates is consolidated Determine cover board, seal silo, the exterior feeding machine of seal silo top connection are formed between partition plate, V-arrangement support plate and adjacent side wall Structure；Worm reduction gear shell is fixed in the top of cover board；Seal silo in being strip, and the length direction of feeding machanism with it is close It is parallel to seal feed bin；

The array nozzle mechanism includes worm reduction gear, central gear and a number of nozzle unit, the center Gear is arranged on the center of V-arrangement support plate, and the worm reduction gear is included in worm reduction gear shell, worm reduction gear it is defeated Outlet drives central gear to rotate through cover board and central gear vertical connection by worm gear reducer function；A number of spray Mouth unit point both sides centered on central gear are distributed；Each nozzle unit include power part, pressure charging valve, nozzle auger, Outboard gears, inboard gear, upper surface gear and lower face gear, described power part one end are connected with external power supply, are moved The lower part of power component is connected through cover board with pressure charging valve, and the supercharging to power part is realized by pressure charging valve；Under the pressure charging valve Portion is fixedly connected with upper surface gear；The nozzle auger top is fixedly connected with the lower surface of upper surface gear, nozzle auger Lower part sequentially passes through lower face gear, outboard gears, corresponding perforate in V-arrangement support plate, and gos deep into the respective jets on bottom plate In；The lower face gear can slide up and down on nozzle auger, enable the face tooth phase of lower face gear and upper surface gear Mutually engagement；Meshed inboard gear is installed on the inside of the outboard gears；The inner tines of two neighboring nozzle unit Wheel and outboard gears are also intermeshed, the inboard gear of some or certain several nozzle units in one end and a line of central gear It is meshed, the other end is meshed with the inboard gear of some or certain several nozzle units in another row.

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

The utility model array nozzle is designed specifically for cement-based material 3D printing, array nozzle by it is multiple rows of can The nozzle unit composition of independent control, can be neatly independent according to the geometry for intending printer model during printing Ground controls the switch of each nozzle unit, therefore has taken into account large scale and high accuracy at the same time, and multiple nozzle units work at the same time Printing effect when model (especially complex model structure) makes is also improved, has filled up cement-based material array 3D printing The blank of nozzle.

Brief description of the drawings

Fig. 1 is the hot material transport conveyor constructions schematic diagram of existing cement material 3D printing nozzle；

Fig. 2 is the cold burden transport conveyor constructions schematic diagram of existing cement material 3D printing nozzle；

Fig. 3 is the structure diagram for the array nozzle that the utility model is suitable for cement-based material 3D printing system；

Fig. 4 is the mounting structure schematic diagram of two nozzle units of the utility model and worm reduction gear；

Fig. 5 is a kind of array of embodiment of array nozzle that the utility model is suitable for cement-based material 3D printing system The main view broken section structure diagram of nozzle mechanism 2；

Fig. 6 is that the installation arrangement of the central gear, inboard gear and outboard gears of the utility model in V-arrangement support plate is shown It is intended to；

In figure, 1. nozzle housings, 2. array nozzle mechanisms, 3. feeding machanisms, 11. bottom plates, 12. side walls, 13. partition plates, 14.V shapes support plate, 15. seal silos, 16. worm reduction gear shells, 17. cover boards, 21. nozzle augers, 22. outboard gears, 29. inboard gear, 23. central gears, 24. upper surface gears, 25. lower face gears, 26. pressure charging valves, 27. cylinders, 28. worm gears Gear reducer, 111. spouts, 112. side wall mounting holes.

Embodiment

With reference to embodiment and attached drawing, the utility model is described in further detail, but is not weighed in this, as to the application The restriction of the claimed scope of profit.

The utility model be suitable for cement-based material 3D printing system array nozzle (abbreviation array nozzle, referring to Fig. 3) include nozzle housing 1 and array nozzle mechanism 2；The nozzle housing 1 includes bottom plate 11, side wall 12, partition plate 13, cover board 17th, V-arrangement support plate 14 and worm reduction gear shell 16, the cross section of the bottom plate 11 is W types, and two in W type bottom plates are minimum Point is provided with spout 111, is equally spaced multiple spouts along the length direction of bottom plate, the top Liang Ge sides of W type bottom plates are equipped with side Bottom plate 11, is fixedly connected by wall mounting hole 112 by bolt through side wall mounting holes with side wall 12, and bottom plate is overall with side wall 12 In back taper；The lower part of end face support V-arrangement support plate 14 among the top of W type bottom plates, the V-arrangement support plate 14 with bottom plate Lower parallel arrangement, the perforate in the V-arrangement support plate of corresponding nozzle exit area；The sky that bottom plate in V-arrangement support plate is surrounded with side wall Interior setting is arranged symmetrically two partition plates 13, and cover board 17 is fixed on the top of two partition plates, partition plate 13, V-arrangement support plate with it is adjacent Seal silo 15, the exterior feeding machanism 3 of 15 top of seal silo connection are formed between side wall 12；Snail is fixed in the top of cover board 17 Decelerator shell 16 is taken turns, the both ends of worm reduction gear shell 16 and the lower end of exterior feeding machanism are fixed；Seal silo 15 is in being Strip, and the length direction of feeding machanism is parallel with seal silo, and be in 45 ° of angles, allow concrete material at itself The flowing that carries out down again be conducive to the conveying of material；

The array nozzle mechanism 2 (referring to Fig. 4 and Fig. 5) includes worm reduction gear 28, central gear 23 and a number of Nozzle unit, the central gear is arranged on the center of V-arrangement support plate 14, and the worm reduction gear 28 is included in worm gear reducer In machine shell, the output terminal of worm reduction gear 28 passes through worm gear reducer function band through cover board 17 and central gear vertical connection Dynamic central gear rotates；A number of nozzle unit point both sides centered on central gear are distributed；Each nozzle unit wraps Include cylinder 27 (power part), pressure charging valve 26, nozzle auger 21, outboard gears 22, inboard gear 29,24 and of upper surface gear Lower face gear 25, described 27 one end of cylinder are connected with external pressure source, and the lower part of cylinder 27 passes through cover board 17 and pressure charging valve 26 Connection, the supercharging to cylinder is realized by pressure charging valve；26 lower part of pressure charging valve is fixedly connected with upper surface gear 24；The nozzle 21 top of auger is fixedly connected with the lower surface of upper surface gear 24, and the lower part of nozzle auger 21 sequentially passes through lower face gear 25th, outboard gears 22, corresponding perforate in V-arrangement support plate 14, and go deep into the respective jets 111 on bottom plate 11；The lower end Face gear 25 can slide up and down on nozzle auger 21, lower face gear 25 and the face tooth of upper surface gear 24 is mutually nibbled Close；The inner side of the outboard gears 22 is provided with meshed inboard gear 29；The inner tines of two neighboring nozzle unit Wheel and outboard gears are also intermeshed, the inner tines of some or certain several nozzle units in one end and a line of central gear 23 Wheel is meshed, and the other end is meshed with the inboard gear of some or certain several nozzle units in another row.

The utility model be further characterized by a number of nozzle auger be divided into two lines parallel array arrangement, bottom plate On the spout quantity that opens up it is identical with nozzle auger quantity, position correspondence.Central gear one end can connect in the utility model One inboard gear, can also connect two inboard gears (referring to Fig. 6), if ensure central gear rotate, can drive in Side gear rotates, and inboard gear can drive all outside teeth by outboard gears, the intermeshing form of inboard gear Wheel rotates, and then the outboard gears of entire row can just rotate, so as to control each nozzle auger 21 to be acted accordingly.

The utility model is further characterized by also being provided with a nozzle auger on the inboard gear, in inner tines Spout is also provided with accordingly on bottom plate immediately below taking turns.Inboard gear can make interior with being provided with identical mechanism in outboard gears Nozzle auger on side gear is acted accordingly, i.e., the nozzle auger top also connects a upper surface gear, the upper end The top of face gear connects a power part by pressure charging valve, the lower part of the nozzle auger sequentially pass through lower face gear 25, Inboard gear, V shape support plates, and go deep into corresponding spout in bottom plate.So arrangement, can aid in and reduce whole array The size of formula nozzle, layout are more rationally beautiful.

The size that the utility model is further characterized by each spout 111 is 12mm × 12mm.In the utility model The size of each spout can also be 15mm × 15mm, 5mm × 5mm.The size Control of spout the precision of printing, jet size Bigger, printing precision is poorer, and spout is smaller, and the time-write interval is also longer, and preferred size is 12mm × 12mm.Spout can independent control Print switch and print speed is controllable, has stronger practical value.

The course of work of the utility model array nozzle is：Concrete material (cement-based material) by feeding machanism 3 into Enter into seal silo 15, upper surface gear moves down under the common power drive of pressure charging valve and cylinder, and and lower face Engaged gears connect, so as to drive the rotation of nozzle auger；Similarly, upper surface gear can be when cylinder be stopped and lower end Face gear separation, terminates the rotation of nozzle auger.It is next that the rotation of nozzle auger is extruded concrete material, is printed.

The size of spout is related with cement-based material in the utility model, sets the size of printing head to be fixed, then Cement-based material needs to adjust the gradings of raw material, water consumption etc. when preparing, with ensure concrete material can successfully from Extruded in each spout.The utility model array printing head suitable material is cement, lightweight aggregate concrete etc., can be fitted The 3D printing of the general big scale of construction cement-based material made for complicated geological structural model.

Cylinder is power part in the utility model, and nozzle auger can be driven to stir, and cylinder can use motor or liquid Pressure power original paper is replaced.

Embodiment 1

The array nozzle that the present embodiment is suitable for cement-based material 3D printing system includes nozzle housing 1 and array nozzle Mechanism 2；Nozzle housing 1 includes bottom plate 11, side wall 12, partition plate 13, V-arrangement support plate 14, worm reduction gear shell 16 and cover board 17, bottom plate, side wall, partition plate, worm reduction gear shell, feeding machanism are fixedly connected by welding between each other, nozzle The effect of shell is to be used to support array nozzle mechanism 2；Array nozzle mechanism 2 includes nozzle auger 21, outboard gears 22, center Gear 23, upper surface gear 24, lower face gear 25, pressure charging valve 26, cylinder 27, worm reduction gear 28 and inboard gear 29, battle array Row nozzle mechanism 2 is the agent structure of 3D printing array nozzle；

The cross section of the bottom plate 11 is W types, is provided with spout 111 in two minimum points of W type bottom plates, is opened altogether on bottom plate 11 There are 50 spouts 111, arrange into two parallel rows, to coordinate the nozzle auger 21 to form nozzle array；The bottom plate 11 and side Wall 12 is fixedly connected by side wall mounting holes 112, forms printed material storage and nozzle unit space；On the side wall 12 Portion is cover board 17, and feeding machanism 3 is symmetrically installed between side wall and cover board 17, and feeding machanism 3 prints required water to provide Cement-based material；The V-arrangement support plate is fixedly connected by stay bolt 18 with bottom plate 11, right between V-arrangement support plate and cover board 17 Title is welded and fixed two partition plates 13, nozzle auger 21 and other control units is separated, partition plate 13, V shapes support plate and phase Seal silo 15, the exterior feeding machanism 3 of 15 top of seal silo connection are formed between adjacent side wall 12；Outside the worm reduction gear To wrap up the worm reduction gear 28, worm reduction gear shell 16 is connected shell 16 by welding with partition plate 13；

The array nozzle mechanism 2 includes worm reduction gear 28, central gear 23 and a number of nozzle unit, described Central gear is arranged on the center of V-arrangement support plate 14, and the worm reduction gear 28 is included in worm reduction gear shell, and worm gear subtracts The output terminal of fast machine 28 drives central gear to rotate through cover board 17 and central gear vertical connection by worm gear reducer function； A number of nozzle unit is distributed centered on central gear in two rows；Each nozzle unit includes cylinder 27, pressure charging valve 26th, nozzle auger 21, outboard gears 22, inboard gear 29, upper surface gear 24 and lower face gear 25, described 27 one end of cylinder It is connected with external pressure source, the lower part of cylinder 27 is bolted through cover board 17 with pressure charging valve 26, is realized by pressure charging valve Supercharging to cylinder；26 lower part of pressure charging valve is fixedly connected with upper surface gear 24；21 top of nozzle auger and upper surface The lower surface of gear 24 is fixedly connected, and the lower part of nozzle auger 21 sequentially passes through lower face gear 25, outboard gears 22, V-arrangement branch Corresponding perforate on fagging 14, and go deep into the respective jets 111 on bottom plate 11；The lower face gear 25 can be twisted in nozzle Slided up and down on dragon 21, lower face gear 25 and the face tooth of upper surface gear 24 is intermeshed；The outboard gears 22 Inner side meshed inboard gear 29 is installed；Outboard gears are hung down with welding manner and nozzle auger and lower face gear It is straight corresponding, it is fixedly connected；Upper surface gear is vertical corresponding with pressure charging valve and cylinder, spiral connection；Outboard gears, inboard gear with Central gear connects in same horizontal plane internal gearing.Central gear is vertical corresponding up and down with worm reduction gear, is weldingly connected.

In the present embodiment, array jet size is：Single jet size is 12mm × 12mm, shares 50 monomer sprays Mouthful, the maximum width that array nozzle can print is 25 × 12=300mm, and print range is 12~300mm.

Nozzle auger 21 is two parallel rows, and array arrangement, is furnished with 25 nozzle augers 21 per luggage, is opened up on bottom plate 11 Identical 50 spouts of size.Cement-based material is extruded array under the rotary extrusion of nozzle auger 21 from corresponding spout Formula nozzle.

Embodiment 2

With embodiment 1, difference is the present embodiment array nozzle each several part connection relation, each in the present embodiment One nozzle auger is also installed on inboard gear, spout is also provided with accordingly on the bottom plate of the underface of inboard gear.Often Cylinder, pressure charging valve, upper surface gear, lower face gear are mounted on by nozzle auger on a inboard gear, specific connection is closed System is the same as the connection relation between each several part on outer side gear.

The present embodiment totally 50 spouts, are arranged in the way of Fig. 6, i.e., are divided both sides cloth centered on central gear Put, the quantity per side outboard gears is 13, and the quantity of inboard gear is 12, and central gear side is nibbled at the same time with two inboard gears Close, opposite side is meshed with an inboard gear.The maximum width that the array nozzle can print is 13 × 12=156mm.Often One independent spout all correspond to a cylinder, each spout can independent control, therefore print range is 12~156mm, printing Precision is 12mm.It is achieved thereby that the adjusting of printhead prints width.

It should be noted that close in this present embodiment nozzle unit, seal silo have corresponding electric-control system to its into Row control.And what the electric-control system used is electric-control system commonly used in the art, is no longer described in detail herein.

It is described in detail in the structure and working principle to the present embodiment cement-based material array 3D printing nozzle Afterwards, its workflow is illustrated below：

(1) feed：Externally to feeding machanism material feeding, after stirring, slurries are delivered to seal silo.

(2) print：Control needs cylinder moving at print position, drives corresponding upper and lower face gear to be meshed, while by Slurries, is squeezed out realization printing by the rotation of worm reduction gear control nozzle auger.

(3) printing type controls：By controlling the movement of diverse location cylinder, it can be achieved that the part of different shape geologic body Printing.

Test proves that the present embodiment array cement-based material 3D printing nozzle can smoothly realize cement-based material 3D is printed, and precision is high, speed is fast, has stronger practicality.

So far, attached drawing is had been combined the present embodiment is described in detail.According to above description, those skilled in the art There should be clear understanding to the utility model cement-based material array 3D printing nozzle.

It should be noted that in attached drawing or specification text, the implementation that does not illustrate or describe is affiliated technology Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously Various concrete structures, shape or the mode mentioned in embodiment are not limited only to, those of ordinary skill in the art can carry out letter to it Singly change or replace, such as：

(1) above-mentioned printing head cylinder control can also use the control modes such as motor；

(2) above-mentioned cement-based material can also use the other materials such as gypsum；

(3) demonstration of the parameter comprising particular value can be provided herein, but these parameters are worth accordingly without being definitely equal to, and It is that can be similar to analog value in acceptable error margin or design constraint；

(5) direction term mentioned in embodiment, such as " on ", " under ", "front", "rear", "left", "right" etc., are only ginsengs The direction of attached drawing is examined, is not used for limiting the scope of protection of the utility model.

Particular embodiments described above, has carried out into one the purpose of this utility model, technical solution and beneficial effect Step describes in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, is not limited to this Utility model, where within the spirit and principles of the present invention, any modification, equivalent substitution, improvement and etc. done, should all wrap It is contained within the scope of protection of the utility model.

The utility model does not address part and is suitable for the prior art.

Claims (6)

1. a kind of array nozzle suitable for cement-based material 3D printing system, it is characterised in that the array nozzle includes spray Head shell and array nozzle mechanism；The nozzle housing includes bottom plate, side wall, partition plate, cover board, V-arrangement support plate and worm gear reducer Machine shell, the cross section of the bottom plate is W types, spout is provided with two minimum points of W type bottom plates, along length direction of bottom plate etc. Spacing arranges multiple spouts, and the top Liang Ge sides of W type bottom plates are fixedly connected with side wall, and bottom plate and side wall are in integrally back taper；W The lower part of end face support V-arrangement support plate among the top of type bottom plate, the V-arrangement support plate is arranged in parallel up and down with bottom plate, right Answer perforate in the V-arrangement support plate of nozzle exit area；Set and be arranged symmetrically in the space that bottom plate in V-arrangement support plate is surrounded with side wall Two partition plates, the top of two partition plates fixes cover board, seal silo is formed between partition plate, V-arrangement support plate and adjacent side wall, close Seal the exterior feeding machanism of feed bin top connection；Worm reduction gear shell is fixed in the top of cover board；It is strip that seal silo, which is in, And the length direction of feeding machanism is parallel with seal silo；

The array nozzle mechanism includes worm reduction gear, central gear and a number of nozzle unit, the central gear The center of V-arrangement support plate is arranged on, the worm reduction gear is included in worm reduction gear shell, the output terminal of worm reduction gear Through cover board and central gear vertical connection, central gear is driven to rotate by worm gear reducer function；A number of nozzle list Member point both sides centered on central gear are distributed；Each nozzle unit includes power part, pressure charging valve, nozzle auger, outside Gear, inboard gear, upper surface gear and lower face gear, described power part one end are connected with external power supply, power part The lower part of part is connected through cover board with pressure charging valve, and the supercharging to power part is realized by pressure charging valve；The pressure charging valve lower part is consolidated Surely upper surface gear is connected；The nozzle auger top is fixedly connected with the lower surface of upper surface gear, the lower part of nozzle auger Lower face gear, outboard gears, corresponding perforate in V-arrangement support plate are sequentially passed through, and is goed deep into the respective jets on bottom plate；Institute Stating lower face gear can slide up and down on nozzle auger, lower face gear and the face tooth of upper surface gear is mutually nibbled Close；Meshed inboard gear is installed on the inside of the outboard gears；The inboard gear of two neighboring nozzle unit and Outboard gears are also intermeshed, and one end of central gear is mutually nibbled with the inboard gear of some in a line or certain several nozzle unit Close, the other end is meshed with the inboard gear of some or certain several nozzle units in another row.

2. the array nozzle according to claim 1 suitable for cement-based material 3D printing system, it is characterised in that close The angle for sealing feed bin and horizontal plane is 45 °.

3. the array nozzle according to claim 1 suitable for cement-based material 3D printing system, it is characterised in that institute State and a nozzle auger is also installed on inboard gear, spout is also provided with accordingly on the bottom plate immediately below inboard gear.

4. the array nozzle according to claim 1 suitable for cement-based material 3D printing system, it is characterised in that if The nozzle auger of dry quantity is divided into two lines parallel array arrangement, and the spout quantity opened up on bottom plate is identical with nozzle auger quantity, Position correspondence.

5. the array nozzle according to claim 1 suitable for cement-based material 3D printing system, it is characterised in that every The size of a spout is 12mm × 12mm.

6. the array nozzle according to claim 1 suitable for cement-based material 3D printing system, it is characterised in that institute It is cylinder or motor to state power part.