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CN108943325A - A kind of flux controllable building increasing material manufacturing print system - Google Patents

A kind of flux controllable building increasing material manufacturing print system Download PDF

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Publication number
CN108943325A
CN108943325A CN201810799167.7A CN201810799167A CN108943325A CN 108943325 A CN108943325 A CN 108943325A CN 201810799167 A CN201810799167 A CN 201810799167A CN 108943325 A CN108943325 A CN 108943325A
Authority
CN
China
Prior art keywords
discharge port
material manufacturing
spray head
increasing material
print system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810799167.7A
Other languages
Chinese (zh)
Inventor
张坤
郭兴安
赵纪元
车旭晨
张恒
郭文华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute Corp of Additive Manufacturing Xian
Original Assignee
National Institute Corp of Additive Manufacturing Xian
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Institute Corp of Additive Manufacturing Xian filed Critical National Institute Corp of Additive Manufacturing Xian
Priority to CN201810799167.7A priority Critical patent/CN108943325A/en
Publication of CN108943325A publication Critical patent/CN108943325A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/001Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/0063Control arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00Auxiliary operations or equipment, e.g. for material handling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Coating Apparatus (AREA)

Abstract

本发明提供一种流量可控的建筑增材制造打印系统,包括混凝土输送泵和设置有流量分配阀的打印喷头;所述流量分配阀包括形成控制内腔的阀体,转动设置在控制内腔内的旋转阀芯,以及分别设置在阀体上均与控制内腔连通的喷头出料口、进料口和循环出料口;所述旋转阀芯用于控制喷头出料口和循环出料口与控制内腔的连通开度;所述混凝土输送泵的输出端与进料口连通,输入端与循环出料口连通。能够同时实现喷头挤出建筑材料时流量可控;大幅的减轻建筑增材制造打印喷头的重量,减轻了打印装置的负载,大幅度提高建筑增材制造装置的打印跨度;混凝土能够持续的输送,混凝土没有在输送管中停留的时间,防止混凝土凝结。

The invention provides a flow-controllable building additive manufacturing printing system, which includes a concrete delivery pump and a printing nozzle provided with a flow distribution valve; The rotary valve core inside, and the discharge port, feed port and circulation discharge port of the nozzle, which are respectively arranged on the valve body and communicate with the control inner cavity; the rotary valve core is used to control the discharge port of the nozzle and the circulation discharge port. The connection opening between the port and the control inner cavity; the output end of the concrete delivery pump is connected with the feed port, and the input end is connected with the circulation discharge port. It can realize the controllable flow rate when the nozzle extrudes building materials at the same time; it can greatly reduce the weight of the construction additive manufacturing printing nozzle, reduce the load of the printing device, and greatly increase the printing span of the construction additive manufacturing device; the concrete can be continuously transported, The concrete does not have time to stay in the delivery pipe, preventing the concrete from setting.

Description

A kind of flux controllable building increasing material manufacturing print system
Technical field
The present invention relates to building increasing material manufacturing printing device, specially a kind of flux controllable building increasing material manufacturing printing system System.
Background technique
Currently, having a kind of principle to be similar to FDM principle in building increasing material manufacturing mode, Building wood is squeezed out by spray head Material, according to the track being previously set, accumulation forms the printing of building layer by layer.In building print procedure, between different structure Conversion, variation of print speed etc. requirement, it is necessary to spray head in these variations can flow it is controllable.In addition certain in printing When hole configurations, such as door and window, it is desirable that spray head can automatic start-stop, realize stopping working in a period of time.
Firstly, in current solution, everybody is substantially using by concrete pumping to spray head, at spray head One hopper is set, the extrusion flow control of spray head is then realized using screw pump etc..In Publication No. CN206678129U State's patent discloses a kind of building element 3D printing spray head of variable-flow, it includes: rack, caching receiving hopper, stirring rod, Stirring rod body containing auger and power connected to it described in variable-flow device and shaping equipment, variable-flow device include blanking Check valve, discharging check valve, plunger pump and the power of connection;The stirring rod is located in caching receiving hopper, with auger body The power of connection is arranged in the rack above caching receiving hopper, and shaping equipment is private print spray head.Adapting to assistant ingredients The lower concrete of technical parameter, by improving the mobility of concrete, while adding each component under the agitation of stirring rod Add agent to stir with concrete, reduces setting time, then through nozzle specially used printing, shorten the print time, completely Meet the needs of printing building element.
Since the size of building printing is bigger, the either printer of which kind of mode, in order to realize as big as possible beat Span is printed, the lightweight of printing head is all made every effort to, therefore a complexity and the structure undoubtedly increasing with hopper are set at spray head The weight for having added spray head increases huge difficulty for realizing that the building printing of more large span is undoubtedly.
Secondly, concrete is different according to the structure of building in print procedure, it is sometimes desirable to the work such as start and stop are carried out, this When increase the risk that concrete condenses in delivery pipe, ultimately cause the destruction of conveyance conduit, influence the effect of building printing Fruit.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of flux controllable building increasing material manufacturing printing system System, structure is simple, and rationally, spray head extrusion output is controllable, and concrete conveyance is non-condensing for design.
The present invention is to be achieved through the following technical solutions:
A kind of flux controllable building increasing material manufacturing print system, including concrete pump be provided with flow divider valve Printing head;
The flow divider valve includes the valve body to form control inner cavity, is rotatably arranged on rotary spool intracavitary in control, And it is separately positioned on the spray head discharge port being connected to control inner cavity on valve body, feed inlet and circulation discharge port;
The rotary spool is used to control spray head discharge port and recycles discharge port and control the connection aperture of inner cavity;
The output end of the concrete pump is connected to feed inlet, and input terminal is connected to circulation discharge port.
Preferably, the valve body is in hollow cylinder, and hollow parts form cylindrical body and control inner cavity;Rotary spool is around axis Line rotation, and it is bonded the side wall and upper bottom surface of control inner cavity;Spray head discharge port, feed inlet and circulation discharge port are separately positioned on It is connected on the side wall of valve body and with control inner cavity.
Further, the fan-shaped setting of the rotary spool;The circular arc of sector structure is greater than spray head discharge port and circulation discharging The radian of maximum open in mouthful;Minimum curvature between spray head discharge port and feed inlet is A, between feed inlet and circulation discharge port Minimum curvature be B, sector structure is capable of the radian of connected component not less than the minimum value in A and B.
Further, the rotary spool is in 90 ° of fan-shaped settings.
Further, the rotary spool is in 180 ° of fan-shaped settings.
Further, the rotary spool is arranged in 180 ° of eccentric segment.
Further, spray head discharge port, feed inlet and circulation discharge port are successively uniformly arranged on the same of control cavity Semicircle side, spray head discharge port and circulation discharge port are symmetrical arranged along the central axes of the semicircle, and the central axes of the two and Semi round bottom Side is parallel;Feed inlet is arranged along the central axes of semicircle.
Further, rotary shaft is set on the central axes of the valve body, and rotary spool is fixedly installed on the rotary shaft.
Preferably, the output end of the concrete pump is connected to by transfer pipeline with feed inlet, and input terminal is by following Endless tube road is connected to circulation discharge port.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of building increasing material manufacturing print system of the present invention realizes circulating for concrete using flow divider valve, from And it is controllable to can be achieved at the same time flow when spray head squeezes out construction material;Extrusion device is not separately provided, only passes through flow divider valve Distribution is just exported to input concrete, to significantly mitigate the weight of building increasing material manufacturing printing head, alleviates printing The load of device can increase substantially the printing span of building increasing material manufacturing device;Whether no matter whether spray head works, i.e., squeeze Concrete out is made during building increasing material manufacturing by the motor path of concrete, and the conveying that concrete can continue mixes The solidifying native not residence time in delivery pipe, prevents concrete coagulation.
Further, improved assignment of traffic valve arrangement, so that the rotary spool in flow divider valve uses eccentric segment Structure greatly reduces the condensation risk in concrete delivery service in delivery pipe.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of system of the present invention.
In figure: concrete pump 1, flow divider valve 2, valve body 21, rotary spool 22, spray head discharge port 23, feed inlet 25, discharge port 24, rotary shaft 26, transfer pipeline 3, circulation line 4 are recycled.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and It is not to limit.
Flux controllable building increasing material manufacturing print system of the present invention makes in the circulatory system of a concrete The printing head and concrete pump 1 for building increasing material manufacturing form a circuit cycle.As shown in Figure 1, at printing head One flow divider valve 2 is set, and the rotary spool 22 in flow divider valve 2 rotates in valve body 21 around rotary shaft 26, control The size of spray head discharge port 23, to realize the control of spray head demand volume, extra concrete then passes through circulation discharge port 24 It is back to concrete pump 1.If printing head needs to stop, spray head discharge port is closed in the rotation control of flow divider valve 2 23, then whole concrete carries out reflux cycle by circulation discharge port 24.If spray head needs to be again started up, assignment of traffic Valve 2 controls 23 size of open printing spray head discharge port according to flow demand.Thereby realize the flow control of printing head.
In this preferred embodiment, as shown in Figure 1, the valve body 21 is in hollow cylinder, hollow parts form cylindrical body control Inner cavity;Rotary spool 22 is rotated around central axes, and is bonded the side wall and upper bottom surface of control inner cavity;Spray head discharge port 23, charging Mouth 25 and circulation discharge port 24 are separately positioned on the side wall of valve body 21 and are connected to control inner cavity.
The rotary spool 22 for cooperating valve body 21 in flow divider valve 2 can be sector structure at any angle, sector structure Circular arc be greater than spray head discharge port 23 and recycle the radian of maximum open in discharge port 24, sector structure is capable of the arc of connected component Degree is not less than the minimum value in A and B;Wherein, the minimum curvature between spray head discharge port 23 and feed inlet 25 is A, feed inlet 25 Minimum curvature between circulation discharge port 24 is B.
Any one phase of two circular arcs between the angle of sector structure and spray head discharge port 23 and circulation discharge port 24 Whens equal, spray head discharge port 23 and circulation discharge port 24 can be controlled simultaneously simultaneously.
On control cavity, the central axes of the two are in 90 degree of feed inlets 25 for spray head discharge port 23 and the setting of circulation discharge port 24 Spray head discharge port 23 is set and recycles the orthodrome part between discharge port 24.Preferred rotary spool 22 is 90 degree of fan-shaped knots Structure is easy it is contemplated that concrete viscosity is big, the characteristic that easily condenses in flow divider valve 2 and control valve insertion stroke dead angle, Increase condensation risk of the concrete at dead angle.
The shortcomings that in order to overcome 90 degree of sector structures, spray head discharge port 23, feed inlet 25 and circulation discharge port 24 are successively equal The even same semicircle side that control cavity is arranged in, spray head discharge port 23 and circulation discharge port 24 are symmetrical along the central axes of the semicircle Setting, and the central axes of the two are parallel with semicircle bottom edge.Feed inlet 25 is arranged along the central axes of semicircle.Rotary spool 22 is revised as 180 degree semi-circular structure, but since there are also the rotary shafts 25 of certain size among flow divider valve 2, also easily in 25 He of rotary shaft The certain dead angle of stroke between rotary spool 22, there are also the condensation risks of concrete.
The consideration of the shortcomings that in order to overcome 180 degree semi-circular structure is further optimized for eccentric segment structure, so that rotary valve 22 section of core forms a simple smoothly plane, further reduced control inner cavity of the concrete in flow divider valve 2 Condense risk.
A kind of flux controllable building increasing material manufacturing print system of the invention, by concrete pump and and is provided with The printing head of flow divider valve forms the circulatory system, and the printing head for building increasing material manufacturing and concrete pump is made to form one A circuit cycle.One flow divider valve is set in printing head, flow divider valve rotates around the axis of rotation, linkage control spray head The size of discharge port and circulation material mouth, to realize the control of printing head flow, extra concrete is then back to concrete Delivery pump.And it is able to achieve the start and stop of printing head.If printing head needs to stop, spray is closed in flow divider valve rotation control Head discharge port, then whole concrete carry out reflux cycle;If spray head needs to be again started up, flow divider valve is needed according to flow Seek control open printing spray head discharge port size;Thereby realize the flow control of printing head.Significantly mitigate building to increase Material manufactures the weight of printing head, alleviates the load of printing equipment, can increase substantially beating for building increasing material manufacturing device Print span;No matter whether spray head works, concrete can continue circulate, concrete do not stopped in delivery pipe when Between, prevent concrete from condensing in delivery pipe.

Claims (9)

1. a kind of flux controllable building increasing material manufacturing print system, which is characterized in that including concrete pump (1) and setting There is the printing head of flow divider valve (2);
The flow divider valve (2) includes the valve body (21) to form control inner cavity, is rotatably arranged on rotary valve intracavitary in control Core (22), and be separately positioned on valve body (21) the spray head discharge port (23) being connected to control inner cavity, feed inlet (25) and It recycles discharge port (24);
The rotary spool (22) is used to control spray head discharge port (23) and recycles discharge port (24) and opens with the connection for controlling inner cavity Degree;
The output end of the concrete pump (1) is connected to feed inlet (25), and input terminal is connected to circulation discharge port (24).
2. the flux controllable building increasing material manufacturing print system of one kind according to claim 1, which is characterized in that the valve Body (21) is in hollow cylinder, and hollow parts form cylindrical body and control inner cavity;Rotary spool (22) is rotated around central axes, and is bonded Control the side wall and upper bottom surface of inner cavity;Spray head discharge port (23), feed inlet (25) and circulation discharge port (24) are separately positioned on It is connected on the side wall of valve body (21) and with control inner cavity.
3. the flux controllable building increasing material manufacturing print system of one kind according to claim 2, which is characterized in that the rotation Rotary plate (22) fan-shaped setting;The circular arc of sector structure is greater than maximum in spray head discharge port (23) and circulation discharge port (24) and opens The radian of mouth;Minimum curvature between spray head discharge port (23) and feed inlet (25) is A, feed inlet (25) and circulation discharge port (24) minimum curvature between is B, and sector structure is capable of the radian of connected component not less than the minimum value in A and B.
4. the flux controllable building increasing material manufacturing print system of one kind according to claim 2, which is characterized in that the rotation Rotary plate (22) is in 90 ° of fan-shaped settings.
5. the flux controllable building increasing material manufacturing print system of one kind according to claim 2, which is characterized in that the rotation Rotary plate (22) is in 180 ° of fan-shaped settings.
6. the flux controllable building increasing material manufacturing print system of one kind according to claim 2, which is characterized in that the rotation Rotary plate (22) is arranged in 180 ° of eccentric segment.
7. the flux controllable building increasing material manufacturing print system of one kind according to claim 6, which is characterized in that spray head goes out Material mouth (23), feed inlet (25) and circulation discharge port (24) are successively uniformly arranged on the same semicircle side of control cavity, spray head Discharge port (23) and circulation discharge port (24) are symmetrical arranged along the central axes of the semicircle, and the central axes of the two and semicircle bottom edge are flat Row;Feed inlet (25) is arranged along the central axes of semicircle.
8. the flux controllable building increasing material manufacturing print system of one kind according to claim 2, which is characterized in that the valve Rotary shaft (26) are set on the central axes of body (21), rotary spool (22) is fixed on rotary shaft (26).
9. the flux controllable building increasing material manufacturing print system of one kind according to claim 1, which is characterized in that described mixed The output end of solidifying soil delivery pump (1) be connected to by transfer pipeline (3) with feed inlet (25), input terminal pass through circulation line (4) and Recycle discharge port (24) connection.
CN201810799167.7A 2018-07-19 2018-07-19 A kind of flux controllable building increasing material manufacturing print system Pending CN108943325A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111173286A (en) * 2020-03-02 2020-05-19 广东博智林机器人有限公司 Feeding device and grooving robot
EP3733370A1 (en) * 2019-05-03 2020-11-04 Schindler GmbH Method for dosing a liquid or paste building material
EP4000836A1 (en) 2020-11-19 2022-05-25 Schindler GmbH Device, arrangement and method for the production of panels from liquid or viscous building material
DE202023102044U1 (en) 2023-04-20 2023-06-07 Schindler GmbH Device for producing concrete elements from building material and device for conveying building material
EP4477374A1 (en) * 2023-06-13 2024-12-18 Saint-Gobain Weber France 3d printing system with bypass

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CN2034226U (en) * 1987-12-31 1989-03-15 李幼成 Three-way cock
CN2594576Y (en) * 2002-09-20 2003-12-24 方东兴 Distributive valve with stabilized total flow
CN201045421Y (en) * 2007-06-22 2008-04-09 吴江 Three-way control valve for solar water heater
CN201159307Y (en) * 2008-02-28 2008-12-03 郑州知信机电科技开发有限公司 Materiel distributing valve for delivery pump
CN102465857A (en) * 2010-11-06 2012-05-23 周德祥 Multifunctional concrete delivery pump
WO2014060100A1 (en) * 2012-10-19 2014-04-24 Daimler Ag Rotary disk valve for a fuel cell system
CN204728663U (en) * 2015-06-05 2015-10-28 杭州波欣工程机械有限公司 A kind of Mortar spraying machine of self-loopa Anti-solidification
CN206678129U (en) * 2017-04-13 2017-11-28 机械科学研究总院江苏分院 A kind of building element 3D printing shower nozzle of variable-flow
CN108105420A (en) * 2017-12-19 2018-06-01 樊东升 A kind of high-pressure hydraulic pump discharge control valve
CN208914306U (en) * 2018-07-19 2019-05-31 西安增材制造国家研究院有限公司 Flux controllable building increasing material manufacturing print system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2034226U (en) * 1987-12-31 1989-03-15 李幼成 Three-way cock
CN2594576Y (en) * 2002-09-20 2003-12-24 方东兴 Distributive valve with stabilized total flow
CN201045421Y (en) * 2007-06-22 2008-04-09 吴江 Three-way control valve for solar water heater
CN201159307Y (en) * 2008-02-28 2008-12-03 郑州知信机电科技开发有限公司 Materiel distributing valve for delivery pump
CN102465857A (en) * 2010-11-06 2012-05-23 周德祥 Multifunctional concrete delivery pump
WO2014060100A1 (en) * 2012-10-19 2014-04-24 Daimler Ag Rotary disk valve for a fuel cell system
CN204728663U (en) * 2015-06-05 2015-10-28 杭州波欣工程机械有限公司 A kind of Mortar spraying machine of self-loopa Anti-solidification
CN206678129U (en) * 2017-04-13 2017-11-28 机械科学研究总院江苏分院 A kind of building element 3D printing shower nozzle of variable-flow
CN108105420A (en) * 2017-12-19 2018-06-01 樊东升 A kind of high-pressure hydraulic pump discharge control valve
CN208914306U (en) * 2018-07-19 2019-05-31 西安增材制造国家研究院有限公司 Flux controllable building increasing material manufacturing print system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3733370A1 (en) * 2019-05-03 2020-11-04 Schindler GmbH Method for dosing a liquid or paste building material
EP3792026A1 (en) * 2019-05-03 2021-03-17 Schindler GmbH Method for dosing a liquid or paste building material
CN111173286A (en) * 2020-03-02 2020-05-19 广东博智林机器人有限公司 Feeding device and grooving robot
EP4000836A1 (en) 2020-11-19 2022-05-25 Schindler GmbH Device, arrangement and method for the production of panels from liquid or viscous building material
DE202023102044U1 (en) 2023-04-20 2023-06-07 Schindler GmbH Device for producing concrete elements from building material and device for conveying building material
EP4477374A1 (en) * 2023-06-13 2024-12-18 Saint-Gobain Weber France 3d printing system with bypass
FR3149823A1 (en) * 2023-06-13 2024-12-20 Saint-Gobain Weber France 3D printing system with bypass

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Application publication date: 20181207

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