CN109514691A - A kind of multi-pass pipe joint, cement ejecting device and cement products 3D printer - Google Patents
A kind of multi-pass pipe joint, cement ejecting device and cement products 3D printer Download PDFInfo
- Publication number
- CN109514691A CN109514691A CN201910055335.6A CN201910055335A CN109514691A CN 109514691 A CN109514691 A CN 109514691A CN 201910055335 A CN201910055335 A CN 201910055335A CN 109514691 A CN109514691 A CN 109514691A
- Authority
- CN
- China
- Prior art keywords
- cement
- pipe joint
- input channel
- ejecting device
- spray head
- 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.)
- Granted
Links
- 239000004568 cement Substances 0.000 title claims abstract description 314
- 238000007639 printing Methods 0.000 claims abstract description 52
- 230000008676 import Effects 0.000 claims abstract description 27
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 58
- 230000007246 mechanism Effects 0.000 claims description 38
- 238000003860 storage Methods 0.000 claims description 27
- 238000004088 simulation Methods 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 6
- 238000010146 3D printing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000219098 Parthenocissus Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coating Apparatus (AREA)
Abstract
The present invention provides a kind of multi-pass pipe joint, cement ejecting device and cement products 3D printers, include input channel and one group of output channel, and input channel is equipped with pipe joint import and the mounting portion for installing multi-pass pipe joint；The fixed filter screen equipped with for filtering in input channel；One end of input channel and the feed inlet of each output channel are respectively communicated with；The pipe side wall of input channel is equipped with filter residue clean-up port, is removably equipped with cover board on filter residue clean-up port；The filter screen and filter residue clean-up port, is respectively positioned between pipe joint import and each output channel；The filter residue clean-up port, between pipe joint import and filter screen.The present invention is used to improve the printing effect of cement products 3D printer.
Description
Technical field
The present invention relates to cement products to print field, specifically a kind of multi-pass pipe joint, cement ejecting device and cement
Product 3D printer is mainly used for printing cement sculpture.
Background technique
3 D-printing (i.e. three dimensional printing) is one kind based on digital model file, with powdery metal or plastic
Etc. adhesive materials, construct the technology of object by layer-by-layer printing.To be led in mold manufacture, industrial design etc. habitually in the past
Domain is used for modeling, has been used for the direct manufacture of cement products, for example be used for the manufacture of cement sculpture product.
Cement products 3D printer is to be beaten in the prior art using one kind of three-dimensional printing technology printing cement sculpture product
Print machine is equipped with the spray head for cement printing, carries out cement printing by its spray head when use.
However existing cement products 3D printer, it is often only equipped with a spray head for cement printing, that is, is arranged
One printing head, printing effect are relatively low.
It is to increase the quantity of the printing head of cement products 3D printer, can increase to a certain extent to be known to the public greatly
The printing effect for adding cement to print.And by way of multi-pass pipe joint, increase the quantity of output channel and then passes through increase
Access increase printing head quantity, be a kind of mode of the quantity of spray head for adding cement products 3D printer.
But in view of the adhesiveness of cement material, multi-pass pipe joint in the prior art, for extending or increasing cement
Product 3D printer for cement printing spray head when easily cause blockage problem, once and blockage phenomenon, it is existing more
Connector of threading a pipe is not easy to dredge blockage on the basis of not dismantling, inconvenient for use, restricts the progress of cement print job.
In addition, existing cement products 3D printer mostly uses greatly a kind of frame built to be printed, i.e., existing cement
Product 3D printer requires to construct corresponding frame in advance for the cement sculpture product to be printed greatly, and printing is used
Spray head carries out 3 D-printing based on constructed good frame, inconvenient for use.
In addition, the nozzle of the printing head of existing cement products 3D printer is easy stifled in view of the adhesiveness of cement material
Plug, this constrains the printing effect of cement products 3D printer to a certain extent.
In addition, for existing cement products 3D printer, occur in cement print procedure printing it is nonconforming it
When place, needs additionally to look for trowel and be modified to nonconforming place is printed, this constrains cement products to a certain extent
The printing effect of 3D printer.
This is in place of the deficiencies in the prior art.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of multi-pass pipe joint, water
Mud ejecting device and cement products 3D printer, for improving the printing effect of cement products 3D printer.
In order to solve the above technical problems, the present invention provides a kind of multi-pass pipe joint, including input channel and one group it is defeated
Pipeline out, input channel are equipped with pipe joint import and the mounting portion for installing multi-pass pipe joint；
The fixed filter screen equipped with for filtering in input channel；
One end of input channel and the feed inlet of each output channel are respectively communicated with；
The pipe side wall of input channel is equipped with filter residue clean-up port, is removably equipped with cover board on filter residue clean-up port；
The filter screen and filter residue clean-up port, is respectively positioned between pipe joint import and each output channel；The filter
Slag clean-up port, between pipe joint import and filter screen.
Wherein, it is further defined that as to the multi-pass pipe joint
Flow sensor is equipped in the input channel；The flow sensor is located at filter residue clean-up port and pipe joint
Between import.
Wherein, it is further defined that as to the multi-pass pipe joint
The pipe joint import, is arranged on the pipe side wall of input channel；
The mounting portion uses flange, is set in one end far from each output channel of input channel.
In addition, the present invention also provides a kind of cement ejecting device, including multi-pass pipeline of any of claims 1 or 2 connects
Head and one group of spray head for having a control valve；
The output channel and the spray head, quantity is equal and corresponds；The output end of each output channel leads to respectively
The corresponding spray head of connecting pipe is crossed to be connected.
Wherein, it is further defined that as to the cement ejecting device
The pipe joint import, is arranged on the pipe side wall of input channel；
The mounting portion uses flange, is set in one end far from each output channel of input channel.
Wherein, it is further defined that as to the cement ejecting device
The spray head includes cement transportation cylinder and nozzle；
The top of cement transportation cylinder is equipped with mounting flange, and the side wall of the upper end of cement transportation cylinder is equipped with for cement transportation cylinder
The cement filler of interior injection cement, the bottom of cement transportation cylinder and the cement inlet communication of nozzle；
The nozzle is cylindrical in shape, and motor-operated control valve is equipped on nozzle；
The second conveyor screw bar is rotationally equipped in cement transportation cylinder, the second conveyor screw bar is along the length side of cement transportation cylinder
To distribution, the lower end of the second conveyor screw bar is located at the lower section of the cement filler；
The second screw rod driving motor is fixed on cement transportation cylinder lateral wall, the output shaft of the second screw rod driving motor passes through
One lateral rotation turns to longitudinally rotate the driving assembly driving second conveyor screw bar.
It is further defined that as to the cement ejecting device
The lateral wall of the nozzle is equipped at least one trowel for being used to correct printing, and the blade of the trowel is lower than nozzle
Cement ejiction opening.
In addition, the present invention also provides a kind of cement products 3D printer, which includes
Support base with walking mechanism, the sixdegree-of-freedom simulation being fixedly mounted on support base, the cement being mounted on support base
Cement ejecting device described in storage bin, claim 4 or 5 or 6 or 7 and for by the cement transportation in cement storage bin
Cement transportation mechanism to the spray head of the cement ejecting device；
The cement ejecting device, the end of the sixdegree-of-freedom simulation is fixed on by the mounting portion of its multi-pass pipe joint
End；Each spray head of the cement ejecting device is fixedly mounted on the lower section of the multi-pass pipe joint；
Each spray head is respectively positioned on a upper side of support base, and can be in the perpendicular of the direction of travel perpendicular to walking mechanism
Interior movement.
Wherein, it is further defined that as to the cement products 3D printer
The walking mechanism is driven by automatically controlled driving mechanism；
The top of cement storage bin is equipped with cement inlet, bottom is equipped with cement exit；
The cement transportation mechanism, including cement pipe and for going out the cement indentation cement in cement storage bin
The conveying power mechanism of mouth；
The cement exit passes through the pipe joint inlet communication of the cement pipe and the multi-pass pipe joint.
Wherein, it is further defined that as to the cement products 3D printer
The conveying power mechanism, including the first conveyor screw bar being distributed vertically and for driving first conveying
Screw rod squeezes into cement exit and conveys the first screw rod driving motor of cement；
The first conveyor screw bar is located in cement storage bin, and the first screw rod driving motor is fixed on cement storage
The top of case is deposited, the roof and the first screw rod driving electricity of cement storage bin are penetrated rotatably at the top of the first conveyor screw bar
The output shaft of machine is coaxially connected.
Compared with the prior art, the advantages of the present invention are as follows:
(1) multi-pass pipe joint of the present invention comprising output channel described in input channel and one group, in input channel
The fixed filter screen equipped with for filtering, the pipe side wall of input channel are clear equipped with the filter residue being used cooperatively with the filter screen
It manages mouth, be removably equipped with cover board on filter residue clean-up port, wherein the filter screen is used in input channel to flowing in pipeline
The substance of warp is filtered, and the cover board can be disassembled from filter residue clean-up port, convenient for passing through filter residue clean-up port to mistake
Filter residue is cleared up on strainer, and then convenient for dredging multi-pass pipe joint, this helps somewhat to prevent multi-pass pipeline
The blocking of connector, it is seen that in the cement transportation that multi-pass pipe joint of the present invention is applied to cement products 3D printer
When, the smoothness of the cement transportation of cement products 3D printer is helped to improve, and then facilitate subsequent raising cement products 3D
The printing effect of printer.
(2) multi-pass pipe joint of the present invention, input channel is interior to be equipped with flow sensor, the flow sensor position
Filter residue (as undesirable cement) between filter residue clean-up port and pipe joint import, for going out in filter screen filtration
When submerging flow sensor, alarm signal is issued, so that user in time clears up the filter residue on filter screen, and then is ensured more
Thread a pipe connector filter screen normal filtration.
(3) cement ejecting device of the present invention is equipped with the multi-pass pipe joint thereon, has the multi-pass pipe
The all advantages of road connector, to simplify specification structure, details are not described herein.
(4) cement ejecting device of the present invention is rotationally equipped with the second conveyor screw bar in cement transportation cylinder,
The second conveyor screw bar is driven by the second screw rod driving motor, in use, being rotated by the second screw rod driving motor
The second conveyor screw bar is driven, the second conveyor screw bar rotates and beats the cement transportation in cement transportation cylinder to spray head
The occurrence probability of the phenomenon that print, this reduces the nozzle of cement blocking spray head to a certain extent, then has to a certain extent
The cement for helping to improve cement ejecting device of the present invention sprays efficiency, then by cement ejecting device of the present invention
When applied to cement products 3D printer, the cement printing effect of cement products 3D printer is helped to improve.
(5) cement ejecting device of the present invention, the nozzle of spray head is equipped with the trowel for correcting printing, in water
When occurring printing nonconforming place in mud print procedure, convenient for being modified to the nonconforming place of printing, printing is avoided
In the process to the searching of trowel, it is seen that when cement ejecting device of the present invention is applied to cement products 3D printer,
Help to improve the cement printing effect of cement products 3D printer.
(6) cement products 3D printer of the present invention is equipped with the cement ejecting device thereon, has the water
The all advantages of mud ejecting device, it is seen that the printing effect of cement products 3D printer can be improved to a certain extent.
(7) cement products 3D printer of the present invention uses sixdegree-of-freedom simulation and with walking mechanism
Support base, each spray head of the cement ejecting device is fixedly mounted on the lower section of the multi-pass pipe joint, each described
Spray head is respectively positioned on a upper side of support base and can move in the perpendicular perpendicular to the direction of travel of walking mechanism,
It avoids and frame described in background technique is built, so that not having to build frame described in background technology, just can be realized
The 3 D-printing of cement products, it is seen that the convenience that cement products 3D printer uses can be increased.
(8) cement products 3D printer of the present invention is integrated with multiple sprays on the cement ejecting device being equipped with thereon
Head, in use, can be used simultaneously with multiple spray heads, it is seen that convenient for improving the printing of cement products 3D printer to a certain extent
Efficiency.
It can be seen that compared with prior art, the present invention implementing with substantive distinguishing features outstanding and significant progress
Beneficial effect be also obvious.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of multi-pass pipe joint described in a specific embodiment of the invention 1.
Fig. 2 is the structural schematic diagram of multi-pass pipe joint described in a specific embodiment of the invention 2.
Fig. 3 is the structural schematic diagram of cement ejecting device described in a specific embodiment of the invention 3,4,5 and 6.
Fig. 4 is a kind of specific embodiment of spray head shown in Fig. 3.
Fig. 5 is another specific embodiment of spray head shown in Fig. 3.
Fig. 6 is the structure of cement products 3D printer described in a specific embodiment of the invention 5 and specific embodiment 6
Schematic diagram.
Fig. 7 is a kind of specific embodiment of walking mechanism shown in Fig. 6.
Fig. 8 is the enlarged diagram at A shown in Fig. 6.
Wherein: 100, multi-pass pipe joint, 101, input channel, 102, filter screen, 103, filter residue clean-up port, 104, pipeline
Connector import, 105, mounting portion, 1051, mounting hole, 106, cover board, 107, bolt, the 108, first output channel, 109, second is defeated
Pipeline out, 110, third output channel, the 111, the 4th output channel, 112, flow sensor；200, trowel；300, spray head,
301, cement transportation cylinder, 302, nozzle, 303, motor-operated control valve, 304, sleeve, 305, support rod, the 306, second angular wheel,
307, cement filler, 308, mounting flange, 3081, mounting hole, the 309, first tapered gear, the 310, second screw rod driving electricity
Machine, 311, support plate, 312, shaft, 313, bearing, the 314, second conveyor screw bar, 3141, helical blade, 315, cement ejection
Mouthful；400, suspending rod；500, support plate；600, connecting pipe；1, mounting flange, the 2, first screw rod driving motor, 3, cement
Inlet, 4, cement storage bin, the 5, first conveyor screw bar, 6, cement exit, 7, servo motor, 8, support base, 9, cement it is defeated
Send pipe, 10, sixdegree-of-freedom simulation, 11, printing head, 12, traveling wheel, 13, groove, 14, traveling wheel, 15, servo motor.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, below in conjunction with attached drawing, to technical solution of the present invention
It is clearly and completely described.
Specific embodiment 1:
Fig. 1 is a kind of specific embodiment of multi-pass pipe joint of the present invention.
Referring to Fig. 1, multi-pass pipe joint 100 described in present embodiment, including input channel 101 and 4 efferent duct
Road, 4 output channels are the first output channel 108, the second output channel 109, third output channel 110 and the 4th efferent duct
Road 111, one end of input channel 101 and the feed inlet of each output channel are respectively communicated with.Input channel 101 is equipped with pipeline
Connector import 104 and mounting portion 105 for installing multi-pass pipe joint.It is fixed equipped with for filtering in input channel 101
Filter screen 102.The pipe side wall of input channel 101 is equipped with filter residue clean-up port 103, removably pacifies on filter residue clean-up port 103
There is cover board 106；The filter screen 102 and filter residue clean-up port 103 is respectively positioned on pipe joint import 104 and each efferent duct
Between road；The filter residue clean-up port 103, between pipe joint import 104 and filter screen 102.As it can be seen that the filtering
Net 102 can be filtered the substance flowed through in pipeline in input channel 101, and filter residue stays on filter screen 102；It is described
Cover board 106 can be disassembled from filter residue clean-up port 103, convenient for by filter residue clean-up port 103 to filter residue on filter screen 102
It is cleared up, and then convenient for dredging multi-pass pipe joint, this helps somewhat to the blocking for preventing multi-pass pipe joint.
Preferably, the pipe joint import 104, is arranged on the pipe side wall of input channel 101；The mounting portion
105 use flange, are set in one end far from each output channel of input channel 101, easy for installation.
For the multi-pass pipe joint is used for cement products 3D printing field, correspondingly, the multi-pass pipe joint
The substance inside flowed through is cement, when use: the cement that external world's conveying comes enters input channel 101 through pipe joint import 104
It is interior, in input channel 101 after the filtering of filter screen 102, respectively enter output channel.When needing to the filter on filter screen 102
When slag is cleared up, cover board 106 need to only be disassembled from filter residue clean-up port 103, filter residue clean-up port 103 can be passed through later
Filter residue on filter screen 102 is cleared up, after for clearance, the cover board 106 disassembled before is reinstalled into filter residue
On clean-up port 103.As it can be seen that multi-pass pipe joint of the present invention, in the filter residue cleared up on filter screen 102, nothing
The disassembly of entire multi-pass pipe joint need to be carried out, it is easy-to-use.
To sum up, when multi-pass pipe joint of the present invention to be applied to the cement transportation of cement products 3D printer,
The smoothness of the cement transportation of cement products 3D printer is helped to improve, and then facilitates subsequent raising cement products 3D printing
The printing effect of machine.
It should be noted that referring to Fig. 1, multi-pass pipe joint described in present embodiment, the top of input channel 101
The setting of portion's hollow out, convenient for cleaning after for multi-pass pipe joint, user, can when using multi-pass pipe joint of the present invention
According to actual needs, choose whether to add seal cover board at the top of input channel 101.
Specific embodiment 2:
Fig. 2 is another specific embodiment of multi-pass pipe joint of the present invention.
Compared with the multi-pass pipe joint described in the specific embodiment 1, the difference is that, described in present embodiment
Multi-pass pipe joint, flow sensor 112 is equipped in input channel 101, and the flow sensor 112 is located at filter
Between slag clean-up port 103 and pipe joint import 104.
For multi-pass pipe joint 100 described in the specific embodiment 2 is used for cement products 3D printing field,
Correspondingly, the substance flowed through in the multi-pass pipe joint 100 is still cement, in use, the filter residue on filter screen 102 is (i.e.
For undesirable cement) position where submergence flow sensor 112 when, flow sensor 112 issues alarm signal, with
Just user in time clears up the filter residue on filter screen 102, and then ensures the normal mistake of the filter screen 102 of multi-pass pipe joint
Filter.
Specific embodiment 3:
Fig. 3 is a kind of specific embodiment of cement ejecting device of the present invention.
Referring to Fig. 3, cement ejecting device described in present embodiment, including multi-pass described in specific embodiment 1
Pipe joint (calling " multi-pass pipe joint A " in the following text) and four have a spray head 300 of control valve, and the 4 of multi-pass pipe joint A
A output channel and four spray heads 300 correspond, and it is corresponding that the output end of each output channel passes through connecting pipe respectively
Spray head 300 be connected.The control valve uses motor-operated control valve.
In conjunction with specific embodiment 1, cement ejecting device described in present embodiment, in use, multi-pass pipe joint A
4 output channels in substance (such as cement), be delivered to pair by 4 corresponding connecting pipes of output channel respectively
In the spray head 300 answered, so that spray head 300 carries out cement printing.
Referring to fig. 4, in the present embodiment, each spray head 300 is equal are as follows:
The spray head 300 includes cement transportation cylinder 301 and nozzle 302；
The top of cement transportation cylinder 301 is equipped with mounting flange 308, the side wall of the upper end of cement transportation cylinder 301 be equipped with for
The cement filler 307 of injection cement, the bottom of cement transportation cylinder 301 and the cement import of nozzle 302 in cement transportation cylinder 301
Connection；
The nozzle 302 is cylindrical in shape, and motor-operated control valve 303 is equipped on nozzle 302；
The second conveyor screw bar 314 is rotationally equipped in cement transportation cylinder 301, the second conveyor screw bar 314 is along cement transportation
The length direction distribution of cylinder 301, the lower end of the second conveyor screw bar 314 is located at the lower section of the cement filler 307；
The second screw rod driving motor 310 is fixed on 301 lateral wall of cement transportation cylinder, the second screw rod driving motor 310
Output shaft turns to longitudinally rotate the driving assembly driving second conveyor screw bar 314 by a lateral rotation；
Interior its cement import without leave to its cement ejiction opening 315 of the nozzle 302 is gradually reduced.
Wherein, the cement filler 307 of spray head 300, for filling cement into cement transportation cylinder 301 and nozzle 302.It is first
It is secondary when filling cement into spray head 300, cement filler 307 for filling water into cement transportation cylinder 301 and nozzle 302
Mud, until filling full water mud in spray head 300.
The spray head 300 is in use, opening the motor-operated control valve 303 on nozzle 302 and starting the second screw rod driving electricity
Machine 310, the output shaft rotation of the second screw rod driving motor 310, and then turn to longitudinally rotate driving by the lateral rotation
The rotation of second conveyor screw bar 314 described in Component driver, and then by the cement helical feed in cement transportation cylinder 301 to nozzle
302 cement ejiction opening 315 carries out cement printing.
As it can be seen that the use of the second conveyor screw bar 314, on the one hand, can be by the cement in cement transportation cylinder 301 to nozzle
302 315 screw extrusion of cement ejiction opening, so that nozzle 302 be assisted to carry out cement printing；It on the other hand, can be to cement transportation
Cement in cylinder 301 is stirred, and then avoids the nozzle 302 of cement blocking spray head 300 in spray head 300 to a certain extent,
Efficiency is sprayed to help somewhat to improve the cement of cement ejecting device of the present invention, then will be of the invention
When the cement ejecting device is applied to cement products 3D printer, the cement for helping to improve cement products 3D printer is beaten
Print efficiency.
Wherein, the second conveyor screw bar 314 described in present embodiment, using the conveying spiral shell for having helical blade 3141
Spinner handle, can also be using spiral iron plate or other related conveyor screw bars are replaced in the prior art.
In addition, conveniently, lateral rotation described in present embodiment turns to longitudinally rotate driving assembly, including setting
Shaft 312 in cement transportation cylinder 301, the shaft 312 are vertical with the second conveyor screw bar 314；The one of shaft 312
Hold the output shaft of the barrel and the second screw rod driving motor 310 that penetrate rotatably cement transportation cylinder 301 coaxially connected, another
End is equipped with the first tapered gear 309；One end of the separate nozzle 302 of second conveyor screw bar 314 is equipped with the second angular wheel
306, second angular wheel 306 engages cooperation with the described first tapered gear 309.When the second screw rod driving motor
When 310 output shaft rotation, the output shaft of the second screw rod driving motor 310 drives shaft 312 to rotate synchronously, shaft 312
Rotation drives the first tapered gear 309 to rotate, and the rotation of the first tapered gear 309 drives the second angular wheel 306 to rotate, and second
It is servo-actuated that the rotation of angular wheel 306 drives the second conveyor screw bar 314, to reach water through the second conveyor screw bar 314
In cement helical feed to nozzle 302 in mud transport tube 301, used so that cement prints.
Referring to fig. 4, it is rotationally equipped with the second conveyor screw bar 314 in the cement transportation cylinder 301, passes through such as lower section
Formula is realized:
In the top and bottom of the second conveyor screw bar 314, it is rotationally equipped with support component；
The end of each support component is fixed on the inner sidewall of cement transportation cylinder 301.
Wherein, referring to fig. 4, the support component includes the fixed axis for being set in 314 periphery of the second conveyor screw bar
313 are held, the periphery of bearing 313 is arranged with sleeve 304, and the periphery of sleeve 304 is fixed on cement transportation by two support rods 305
On the inner sidewall of cylinder 301.Structure is simple.
Wherein, bearing 313 be fixed on outside the second conveyor screw bar 314 place, sleeve 304 is fixed on bearing 313, support
The use of bar 305, sleeve 304 and bearing 313, for the second conveyor screw bar 314 to be supported on to the center of cement transportation cylinder 301
On line.Wherein, the cement transportation cylinder 301 is cylinder.
It should be noted that each spray head 300 involved in present embodiment, can be beaten using existing cement products 3D
Any correlation spray head used in print machine is realized.
It is further to note that lateral rotation described in present embodiment turns to longitudinally rotate driving when specific implementation
Component, also can be used the identical lateral rotation of any function in the prior art and turns to longitudinally rotate driving assembly and be replaced.
It is further to note that the cement transportation cylinder 301 and nozzle 302 of spray head 300 described in present embodiment use
Integral structure, the cement transportation cylinder 301 and nozzle 302 of the spray head 300 are distributed in "-" type.
Specific embodiment 4:
Fig. 3 and Fig. 5 is another specific embodiment of cement ejecting device of the present invention.
Referring to Fig. 3 and Fig. 5, compared with specific embodiment 3, the difference is that, cement described in present embodiment
Ejecting device, sets that there are two for correct the trowel 200 printed, two trowels on the lateral wall of the nozzle 302 of spray head 300
200 positions are opposite and the blade of the two is below the cement ejiction opening 315 of nozzle 302.
During cement ejecting device carries out cement printing, when occurring printing nonconforming place, mud can be passed through
200 pairs of the knife nonconforming places of printing are modified, this avoids in print procedure to the searching of trowel, it is seen that will be of the invention
When the cement ejecting device is applied to cement products 3D printer, the cement for helping to improve cement products 3D printer is beaten
Print efficiency.
Specific embodiment 5:
Fig. 3, Fig. 4, Fig. 6, Fig. 7 and Fig. 8 are a kind of specific embodiment of cement products 3D printer of the present invention.
Referring to Fig. 6, Fig. 7 and Fig. 8, cement products 3D printer described in present embodiment comprising have vehicle with walking machine
The support base 8 of structure, the sixdegree-of-freedom simulation 10 being fixedly mounted on support base 8, the cement storage bin being mounted on support base 8
4, cement ejecting device described in the specific embodiment of the invention 3 and for by the cement transportation in cement storage bin 4 extremely
Cement transportation mechanism in the spray head 300 of the cement ejecting device；The cement ejecting device is connect by its multi-pass pipeline
The mounting portion 105 of head is fixed on the end of the sixdegree-of-freedom simulation 10；Each spray head 300 of the cement ejecting device,
It is fixedly mounted on the lower section of the multi-pass pipe joint；The cement ejecting device, positioned at a upper side of support base 8, and
It can be moved in the perpendicular perpendicular to the direction of travel of walking mechanism.The walking mechanism passes through automatically controlled driving mechanism
Driving.
Wherein, the use of sixdegree-of-freedom simulation, avoids and builds to frame described in background technique, so that not having to take
Frame described in background technology is built, just can be realized the 3 D-printing of cement products, it is seen that mechanical arm type cement can be increased
The convenience that product 3D printer uses.
Referring to Fig. 6, the top of cement storage bin 4 is equipped with cement inlet 3, bottom is equipped with cement exit 6；The cement
Conveying mechanism, the conveying power including cement pipe 9 and for the cement in cement storage bin 4 to be pressed into cement exit 6
Mechanism；The cement exit 6 passes through the pipe joint import 104 of the cement pipe 9 and the multi-pass pipe joint
Connection.
Referring to Fig. 6, the conveying power mechanism, including the first conveyor screw bar 5 being distributed vertically and for driving
The first conveyor screw bar 5 squeezes into cement exit 6 and conveys the first screw rod driving motor 2 of cement；Described
One conveyor screw bar 5 is located in cement storage bin 4, and the first screw rod driving motor 2 is fixed on the top of cement storage bin 4
Portion, the top of the first conveyor screw bar 5 penetrate rotatably the roof and the first screw rod driving motor 2 of cement storage bin 4
Output shaft is coaxially connected.
In use, the cement for being used to print that first external world is stirred injects cement storage bin 4, pass through cement transportation later
Mechanism is connect the multi-pass pipe joint 100 of the cement transportation in cement storage bin 4 to cement ejecting device by multi-pass pipeline later
First 100 output channel is delivered to the inside of each spray head 300, uses so that cement prints.
Walking mechanism described in present embodiment uses four servos using 4 traveling wheels, the driving of automatically controlled driving mechanism
Motor, appended drawing reference 700 refer to the walking mechanism and the driving of automatically controlled driving mechanism, referring to Fig. 6 and Fig. 7,4 rows
It walks wheel to correspond and be used cooperatively with four servo motors, in use, 4 traveling wheels are each by its corresponding servo motor
It is driven, as shown in Figure 6 and Figure 7, traveling wheel 15 is by the way that its corresponding servo motor 14 is driven, traveling wheel 7 passes through it
Corresponding servo motor 12 is driven, and four servo motors respectively drive its corresponding 4 traveling wheel, to drive the present invention
The cement products 3D printer walking.It should be noted that in the specific implementation, the walking mechanism can also use
Sprocket wheel walking mechanism or creeper undercarriage are substituted.
It should be noted that the use of servo motor, can make starting, the traveling, Yi Jiting of cement products 3D printer
Only opposite plus stabilization, can reduce or even prevent to a certain extent the interference to cement products 3D printer print job, and
It can play the role of to a certain extent energy-efficient.
It should be noted that referring to Fig. 6, heretofore described sixdegree-of-freedom simulation 10, including be used cooperatively
One mechanical arm 10.1, second mechanical arm 10.2 and third mechanical arm 10.3, wherein the first end of first mechanical arm 10.1 is (with peace
Dress pedestal) it is fixed on the upper surface of support base 8, end of the third mechanical arm 10.3 with the sixdegree-of-freedom simulation 10
(which is provided with mounting flange 1, for install cement ejecting device, third mechanical arm 10.3 for installing cement ejecting device
One end be located above one side of support base 8, the first end of the second end of first mechanical arm 10.1 and second mechanical arm 10.2, the
The second end of two mechanical arms 10.2 and its separate one end for being used to install cement ejecting device of third mechanical arm 10.3, lead to respectively
The flexible connection of mechanical arm articulating device is crossed, wherein first mechanical arm 10.1, second mechanical arm 10.2 and third mechanical arm
10.3 is in the same plane, which is denoted as plane M, the direction of travel of plane M and heretofore described walking mechanism
Vertically, first mechanical arm 10.1, second mechanical arm 10.2 and third mechanical arm 10.3 are respectively positioned on plane M, second mechanical arm
10.2 second end can move in plane M using the second end of first mechanical arm 10.1 as fulcrum, third mechanical arm 10.3
One end for installing cement ejecting device can move in plane M using the second end of second mechanical arm 10.2 as fulcrum, can
See that one end for installing cement ejecting device of third mechanical arm 10.3 can be in the direction of travel perpendicular to walking mechanism
Movement in perpendicular.
It is further to note that heretofore described sixdegree-of-freedom simulation 10, each corresponding component part, such as
The mechanical arm articulating device can be used any the relevant technologies with corresponding function in the prior art and carry out in fact
Existing, this is the prior art, and details are not described herein.
It is further to note that referring to Fig. 6, conveniently, support base 8 be equipped with for accommodate cement exit 6 with
And the groove 13 of the part of the one end of cement pipe 9 being connected with the cement exit 6, the groove 13 are recessed using rectangle
Slot, the width of groove 13 do not influence the stability of the installation of cement storage bin 4, such as in the straight of cement exit 6 and cement pipe 9
When diameter is identical, the width of groove 13 compared with the diameter (or with diameter of cement pipe 9) of cement exit 6, it is equal or the former
(i.e. the width of groove 13) is less times greater than the latter (i.e. the diameter (or diameter with cement pipe 9) of cement exit 6).
It is further to note that each noun of locality involved in the present invention, on the basis of Fig. 1.
It is further to note that the present invention is in specific implementation, can be realized by extraneous control device to above-mentioned water
Each automatically controlled building block involved in mud product 3D printer (such as each servo motor, sixdegree-of-freedom simulation 10,
Cement transportation mechanism and motor-operated control valve 303 it is automatically controlled, the corresponding course of work specifically includes five shown in following (1)-(5)
A aspect:
(1) it before cement print job starts, is filled be stirred into cement storage bin 4 by cement inlet 3 first
Cement, later by extraneous control device control the first screw rod driving motor 2 work, later pass through cement transportation mechanism Jiang Shui
Cement transportation in mud storage bin 4 to cement ejecting device multi-pass pipe joint 100, later by multi-pass pipe joint 100
Output channel is delivered to the inside of each spray head 300, stops after a certain amount of cement of each 300 internal reservoir of spray head to printing head
Cement is conveyed in 11；
(2) when print job starts, according to preset printing drawing needs, vehicle with walking machine is controlled by extraneous control device
Structure and sixdegree-of-freedom simulation 10 carry out the movement in accurate location direction, after each spray head 300 determines position, are controlled by the external world
Device control motor-operated control valve 303 processed is opened, and each spray head 300 starts to carry out cement printing；Wherein, in cement print procedure,
For extraneous control device according to the needs of preset printing drawing, the walking of control walking mechanism and control six degree of freedom are mechanical
Arm 10 is mobile with each spray head 300, consistent with necessary requirement with the product for ensuring to print；
(3) in cement print procedure, the multi-pass of cement ejecting device is determined based on the detected value that flow sensor issues in real time
Whether the filter residue on filter screen 102 in pipe joint 100 submerges the position where flow sensor, if it is determined that result be it is yes,
Warning information is then issued by extraneous control device, to clear up in time the filter residue on filter screen 102, to ensure that cement is beaten
Print is gone on smoothly；
(4) after the completion of current region prints, extraneous control device control motor-operated control valve 303 is closed, to move to spray head 303
Next region to be printed is then turned on printing.
Specific embodiment 6:
Fig. 3,5,6,7 and 8 are another specific embodiment of cement products 3D printer of the present invention.
Compared with specific embodiment 5, the difference is that, cement products 3D printer described in present embodiment,
Set on the lateral wall of its nozzle 302 there are two for correct printing trowel 200, institute two 200 positions of trowel relatively and
The blade of the two is below the cement ejiction opening 315 of nozzle 302.
During cement products 3D printer carries out cement printing, when occurring printing nonconforming place, it can lead to
200 pairs of the trowel nonconforming places of printing are crossed to be modified, this avoids in print procedure to the searching of trowel, it is seen that it is one
Determine to ensure that the aesthetics of product in degree, also improve the cement printing effect of cement products 3D printer.
Embodiment of above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned implementation
Invention is explained in detail for mode, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are repaired
Change or replaces, the range for each embodiment technical solution of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of multi-pass pipe joint, including input channel (101) and one group of output channel, it is characterised in that:
Input channel (101) is equipped with pipe joint import (104) and the mounting portion for installing multi-pass pipe joint
(105)；
The fixed filter screen (102) equipped with for filtering in input channel (101)；
One end of input channel (101) and the feed inlet of each output channel are respectively communicated with；
The pipe side wall of input channel (101) is equipped with filter residue clean-up port (103), and filter residue clean-up port is removably equipped on (103)
Cover board (106)；
The filter screen (102) and filter residue clean-up port (103), is respectively positioned on pipe joint import (104) and each efferent duct
Between road；The filter residue clean-up port (103), between pipe joint import (104) and filter screen (102).
2. multi-pass pipe joint according to claim 1, it is characterised in that:
Flow sensor (112) are equipped in the input channel (101)；
The flow sensor (112), between filter residue clean-up port (103) and pipe joint import (104).
3. multi-pass pipe joint according to claim 1 or 2, it is characterised in that:
The pipe joint import (104) is arranged on the pipe side wall of input channel (101)；
The mounting portion (105) uses flange, is set in one far from each output channel of input channel (101)
End.
4. a kind of cement ejecting device, it is characterised in that:
The spray head (300) of control valve is had including multi-pass pipe joint of any of claims 1 or 2 and one group；
The output channel and the spray head (300), quantity is equal and corresponds；The output end of each output channel point
Not Tong Guo the corresponding spray head of connecting pipe (300) be connected.
5. cement ejecting device according to claim 4, it is characterised in that:
The pipe joint import (104) is arranged on the pipe side wall of input channel (101)；
The mounting portion (105) uses flange, is set in one far from each output channel of input channel (101)
End.
6. cement ejecting device according to claim 4, it is characterised in that:
The spray head (300) includes cement transportation cylinder (301) and nozzle (302)；
The top of cement transportation cylinder (301) is equipped with mounting flange (308), and the side wall of the upper end of cement transportation cylinder (301) is equipped with
For the cement filler (307) of the injection cement into cement transportation cylinder (301), the bottom of cement transportation cylinder (301) and nozzle
(302) cement inlet communication；
The nozzle (302) is cylindrical in shape, and is equipped with motor-operated control valve (303) on nozzle (302)；
The second conveyor screw bar (314) is rotationally equipped in cement transportation cylinder (301), the second conveyor screw bar (314) is along water
The length direction of mud transport tube (301) is distributed, and the lower end of the second conveyor screw bar (314) is located at the cement filler
(307) lower section；
The second screw rod driving motor (310), the second screw rod driving motor are fixed on cement transportation cylinder (301) lateral wall
(310) output shaft turns to longitudinally rotate the driving assembly driving second conveyor screw bar (314) by a lateral rotation.
7. cement ejecting device according to claim 6, it is characterised in that:
The lateral wall of the nozzle (302) is equipped at least one trowel (200) for being used to correct printing, the trowel (200)
Blade be lower than nozzle (302) cement ejiction opening (315).
8. a kind of cement products 3D printer, it is characterised in that:
The cement products 3D printer, including having the support base (8) of walking mechanism, being fixedly mounted on support base (8)
Sixdegree-of-freedom simulation (10), be mounted on support base (8) cement storage bin (4), described in claim 4 or 5 or 6 or 7
Cement ejecting device and for by the cement transportation in cement storage bin (4) to the spray head of the cement ejecting device
(300) the cement transportation mechanism in；
It is mechanical to be fixed on the six degree of freedom by the mounting portion (105) of its multi-pass pipe joint for the cement ejecting device
The end of arm (10)；Each spray head (300) of the cement ejecting device, is fixedly mounted under the multi-pass pipe joint
Side；
Each spray head (300) is respectively positioned on a upper side of support base (8), and can be in the direction of travel perpendicular to walking mechanism
Movement in perpendicular.
9. cement products 3D printer according to claim 8, it is characterised in that:
The walking mechanism is driven by automatically controlled driving mechanism；
The top of cement storage bin (4) is equipped with cement inlet (3), bottom is equipped with cement exit (6)；
The cement transportation mechanism, including cement pipe (9) and for the cement in cement storage bin (4) to be pressed into
The conveying power mechanism of cement exit (6)；
The cement exit (6) passes through the pipe joint import of the cement pipe (9) and the multi-pass pipe joint
(104) it is connected to.
10. cement products 3D printer according to claim 9, it is characterised in that:
The conveying power mechanism, it is described first defeated including the first conveyor screw bar (5) for being distributed vertically and for driving
Square auger bar (5) squeezes into cement exit (6) and conveys the first screw rod driving motor (2) of cement；
The first conveyor screw bar (5) is located in cement storage bin (4), and the first screw rod driving motor (2) is solid
It is scheduled on the top of cement storage bin (4), the top of cement storage bin (4) is penetrated rotatably at the top of the first conveyor screw bar (5)
The output shaft of wall and the first screw rod driving motor (2) is coaxially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055335.6A CN109514691B (en) | 2019-01-21 | 2019-01-21 | Multi-way pipeline joint, cement spray head device and cement product 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055335.6A CN109514691B (en) | 2019-01-21 | 2019-01-21 | Multi-way pipeline joint, cement spray head device and cement product 3D printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109514691A true CN109514691A (en) | 2019-03-26 |
| CN109514691B CN109514691B (en) | 2023-12-29 |
Family
ID=65799287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910055335.6A Active CN109514691B (en) | 2019-01-21 | 2019-01-21 | Multi-way pipeline joint, cement spray head device and cement product 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109514691B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113119275A (en) * | 2020-01-16 | 2021-07-16 | 齐鲁工业大学 | Joint device for 3D printing of cement |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777713A (en) * | 2012-07-11 | 2012-11-14 | 宁波嘉诚液压有限公司 | Transition joint with filtering function |
| CN102886171A (en) * | 2011-07-18 | 2013-01-23 | 四川逢春制药有限公司 | Pipeline filter |
| CN104807013A (en) * | 2015-05-08 | 2015-07-29 | 陈怀超 | Burner tip, burner with same and steam-cracked hydrogen burning method |
| CN205164272U (en) * | 2015-10-21 | 2016-04-20 | 天津晟高创新科技有限公司 | Online filtration metering device of cement grinding aid |
| CN206551161U (en) * | 2017-02-24 | 2017-10-13 | 武汉市市政建设集团有限公司 | A kind of mobile concrete 3D printing equipment |
| KR20180012432A (en) * | 2016-07-27 | 2018-02-06 | (주)퓨처쉐이퍼스 | Apparatus for supplying cement mortar of 3d concrete printer |
| CN108356955A (en) * | 2018-04-26 | 2018-08-03 | 同济大学 | A kind of experimental water cement-based material 3D printer |
| CN108772938A (en) * | 2018-05-29 | 2018-11-09 | 中建西部建设西南有限公司 | A kind of concrete 3D printing nozzle and printer |
| CN209903477U (en) * | 2019-01-21 | 2020-01-07 | 齐鲁工业大学 | Multi-channel pipe joint, cement nozzle device and cement product 3D printer |
-
2019
- 2019-01-21 CN CN201910055335.6A patent/CN109514691B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886171A (en) * | 2011-07-18 | 2013-01-23 | 四川逢春制药有限公司 | Pipeline filter |
| CN102777713A (en) * | 2012-07-11 | 2012-11-14 | 宁波嘉诚液压有限公司 | Transition joint with filtering function |
| CN104807013A (en) * | 2015-05-08 | 2015-07-29 | 陈怀超 | Burner tip, burner with same and steam-cracked hydrogen burning method |
| CN205164272U (en) * | 2015-10-21 | 2016-04-20 | 天津晟高创新科技有限公司 | Online filtration metering device of cement grinding aid |
| KR20180012432A (en) * | 2016-07-27 | 2018-02-06 | (주)퓨처쉐이퍼스 | Apparatus for supplying cement mortar of 3d concrete printer |
| CN206551161U (en) * | 2017-02-24 | 2017-10-13 | 武汉市市政建设集团有限公司 | A kind of mobile concrete 3D printing equipment |
| CN108356955A (en) * | 2018-04-26 | 2018-08-03 | 同济大学 | A kind of experimental water cement-based material 3D printer |
| CN108772938A (en) * | 2018-05-29 | 2018-11-09 | 中建西部建设西南有限公司 | A kind of concrete 3D printing nozzle and printer |
| CN209903477U (en) * | 2019-01-21 | 2020-01-07 | 齐鲁工业大学 | Multi-channel pipe joint, cement nozzle device and cement product 3D printer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113119275A (en) * | 2020-01-16 | 2021-07-16 | 齐鲁工业大学 | Joint device for 3D printing of cement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109514691B (en) | 2023-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109514689A (en) | A kind of mechanical arm type cement products 3D printer | |
| CN207048274U (en) | It is a kind of can automatic painting building coating paint device | |
| CN109514691A (en) | A kind of multi-pass pipe joint, cement ejecting device and cement products 3D printer | |
| CN211341802U (en) | Building concrete sprayer | |
| CN110254054B (en) | Ink supply device for inkjet printer | |
| CN109551607A (en) | A kind of elevating lever-type cement products 3D printing equipment | |
| CN107351260B (en) | Novel stirring and pulping device for environment-friendly energy-saving dry-mixed mortar storage tank | |
| CN209903474U (en) | Mechanical arm type cement product 3D printer | |
| CN209903477U (en) | Multi-channel pipe joint, cement nozzle device and cement product 3D printer | |
| CN214236165U (en) | Blowing device is used in production of high manganese steel welt | |
| CN206437944U (en) | A kind of intelligent ecological sewage disposal system | |
| CN202730237U (en) | Electric water heater liner enameling machine | |
| CN113002159B (en) | Full-automatic ink supply equipment | |
| CN210616887U (en) | Prevent concrete unloader of jam | |
| CN208711580U (en) | A kind of Manufacturing medicine extract machine that stirring efficiency is high | |
| CN206800293U (en) | The four-way of environmental sanitation sweeper automatically adjusts high-pressure wash mechanism | |
| CN214687221U (en) | Drainage device for concrete pouring | |
| CN109518975A (en) | A kind of large-scale cement 3D printing equipment | |
| CN219793925U (en) | Ground source heat pump buried pipe backfill equipment | |
| CN221046859U (en) | Cleaning mechanism of mixing device for suspension floor production | |
| CN115653258B (en) | Waterproof construction equipment for joint sealing of assembled building outer wall | |
| CN215441860U (en) | Grouting device for foundation engineering | |
| CN220975542U (en) | Shaftless screw conveyor | |
| CN219943953U (en) | Feed processing is with filling tube | |
| CN216320849U (en) | A earthwork dust device for building construction site |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |