CN107443739A - A kind of same layer continuous fiber composite material 3D printer ejecting device - Google Patents
A kind of same layer continuous fiber composite material 3D printer ejecting device Download PDFInfo
- Publication number
- CN107443739A CN107443739A CN201610364573.1A CN201610364573A CN107443739A CN 107443739 A CN107443739 A CN 107443739A CN 201610364573 A CN201610364573 A CN 201610364573A CN 107443739 A CN107443739 A CN 107443739A
- Authority
- CN
- China
- Prior art keywords
- composite fiber
- heat block
- fiber silk
- silk
- composite
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The invention belongs to 3D printer field of structural design, is related to a kind of same layer continuous fiber composite material 3D melting printer head structures for integrating feeding, cut-out, melting and refrigerating function.The feed mechanism on the printhead top drives driving wheel by motor, drives driven pulley, so as to which the tangential direction for driving composite fiber silk to be taken turns along principal and subordinate is moved, realizes feed function；Feed mechanism bottom is turned off mechanism, and the mechanism drives quadric chain, and then the blade movement cut-out composite fiber silk above drivening rod by servo module；The melting mechanism of shut-off mechanism bottom makes heat block heating by heating rod heating, and the peripheral macromolecule thermoplastic material for making to be wrapped with carbon fiber or glass fibre inside it sprays after being in molten condition；And cooling body is mainly realized by the electric fan in fan hub, the particular design of fan hub allows wind directly to blow on the composite fiber silk of ejection；Overall structure is packed by sheet metal shell.
Description
Technical field
The invention belongs to 3D meltings printer Design, manufacturing field, one kind is used to spray with the 3D printing of layer continuous fiber composite material
Head device, it is mainly characterized by：The shower nozzle is to integrate feeding, cut-out, melting and the composite 3D printing of refrigerating function
Machine shower nozzle.
Background technology
The 3D forming techniques on domestic and international market are mainly at present：Metal dust Direct Laser sintering, selective laser sintering, three
Shaping and fused glass pellet (FDM) are cohered in dimension printing.It is wherein most widely used to surely belong to fused glass pellet (FDM), state
The interior printed material currently used for it is mainly thermoplastic material, such as ABS and PLA.Due to thermoplastic material low intensity, often make
Used time can not meet intensity requirement, therefore in order to strengthen the intensity of this material, toughness etc., generally add reinforcing fiber thereto,
Such as glass fibre, carbon fiber etc., composite is become；Fibers form in composite has chopped fiber, long fibre and company
Continuous 3 kinds of fiber, wherein continuous fiber are to the enhancing effects of the indexs such as the intensity of composite, toughness considerably beyond other two kinds of fibres
Dimension form；Continuous fiber composite material 3D printing process is such：Several layers of matrix macromolecule thermoplastic material are printed first (such as
ABS, PLA, or nylon etc.), then start to print fibrous layer, will also contain answering for fiber (carbon fiber or glass fibre)
Condensation material silk is laid on base material layer, because composite silk outer layer covers have matrix macromolecule thermoplastic material, due to spraying
When in melting high viscosity liquid state, therefore be easy to be bonded to one with existing matrix material.The same layer of usual part
Composite silk can not be all covered with section, gap is still filled by matrix material, therefore is needed in print procedure constantly
Ground switching printhead could complete same layer composite and laying is mixed with matrix material.When the 3D printing by continuous fiber composite material
When head switches to matrix material printhead, it is necessary to continuous fiber is cut off, in order to which matrix printhead is printed；For matrix
Macromolecule thermoplastic material printhead, has sold on the market at present, and technology maturation, however, current domestic 3D printer is also
The composite of continuous fiber can not be printed, and is also at the early-stage in the U.S., this printing technique, although having there is printing multiple
The 3D printer of condensation material, but its feeding, cut-out are the systems that separate with shower nozzle, cause composite fiber silk oversize,
Large piece article can be printed, it is impossible to print small article, can not piddler when printing small article；This collection feeding, cut-out, melting
The 3D printing shower nozzle being integrated with cooling can solve the problem that above mentioned problem；It present invention can be widely used to the neck such as automobile, Aeronautics and Astronautics
Domain.
The content of the invention
The purpose of the present invention can continuously shoot out composite fibre aiming at above-mentioned existing technical problem and defect, design one kind
The 3D printer shower nozzle of silk is tieed up, the shower nozzle integrates feeding, cut-out, melting and refrigerating function, compact-sized, convenient and practical.
The invention belongs to 3D printer field of structural design, is related to a kind of 3D meltings printer head structure, more particularly to a kind of
With cutting function and can continuously shoot out composite fiber silk 3D melt printer head structure.Skill of the present invention
Art scheme is：Design a kind of 3D melting printer head structure, this shower nozzle, which will continuously shoot out, to be wrapped with carbon fiber or be wrapped with glass fibers
The composite fiber silks such as the high polymer material (such as nylon, ABS, PLA, PC, PPSF) of dimension.Printhead topmost is multiple
The filametntary continuous feed mechanism of condensation material, feed mechanism provide power by motor, and driving driving wheel rotates, and drives driven pulley
Rotate, driving wheel is fixed on motor shaft, has a groove on driven pulley, composite fiber silk is placed in the groove of two wheel treads
It is interior, with the operating of motor the tangential direction that composite fiber silk is taken turns along principal and subordinate is moved, so that composite is fine
Tie up silk and complete feed function；Feed mechanism bottom is turned off mechanism, and shut-off mechanism is a set of quadric chain, wherein on a connecting rod
Blade is fixed with, parallel motion is driven by servo module, the blade cut-out composite fiber silk for making it fix above；
Shut-off mechanism bottom is melting and cooling body, melt the heating in mechanism mainly by the heating rod that is fixed on heat block come pair
Heat block is heated, and is so made heat block heating by heating rod heating, so as to transmit heat to pipeline and its nozzle, is made it
The inside be wrapped with carbon fiber or glass fibre peripheral macromolecule thermoplastic material be in molten condition after spray again；Cooling body mainly leads to
Electric fan is crossed to realize, electric fan is arranged in fan hub, and fan hub is fixed on intermediate plate, and the design of fan hub causes fan
The wind of blowout can be directly blown on the composite fiber silk of ejection.Last overall structure is packed by sheet metal shell.
In use, composite silk first is fed into melting mechanism by feed mechanism, melting mechanism heats the shower nozzle to it,
The melting such as the thermoplastic macromolecule material of the filament such as glass fibre or carbon fiber outer surface, such as ABS, PLA will be rolled in, then will
It together sprays with filament, because thermoplastic tool is viscosity, filament is directly bonded on printed object, then
Thermoplastic material is quickly cooled down by cooling body, thus filament is solidificated in printed object, plays invigoration effect；
Rational planning piddler track, is covered with same printable layer by filament, then controls shut-off mechanism to cut off the filament of this layer；
Then next layer of printing is carried out, until the printing of 3D objects is completed.
Brief description of the drawings
Fig. 1, Fig. 2, Fig. 3, Fig. 4 are the overall installation diagram of the present invention, and Fig. 5 is quadric chain module.
Piece number explanation in figure：
1. motor, 2. driving wheels, 3. driven pulleys, 4. levers, 5. springs, 6. bolts, 7. composite fiber silks, 8.
Servo module, 9. intermediate plates, 10. connecting rods, 11. cutter fixtures, 12. blades, 13. locating shafts, pipeline on 14., under 15.
Pipeline, 16. heat blocks, 17. heating rods, 18. nozzles, 19. temperature sensors, 20. pressing plates, 21. heat block location-plates, 22.
Interfix axle, 23. fans, 24. fan hubs
Embodiment
Explanation is described in detail to embodiment of the present invention below in conjunction with the accompanying drawings.
The invention belongs to the 3D printer nozzle structure of same layer continuous fiber composite material, the shower nozzle is collection feeding, cut-out, melting
The composite 3D printer shower nozzle being integrated with refrigerating function.
Feed function is to provide power by motor 1, and driving driving wheel 2 rotates, and driving wheel 2 can be gear, can also
It is friction pulley, driving wheel 2 drives driven pulley 3 to rotate, and driven pulley 3 is one and is fixed on reeded flat wheel, driving wheel 2
In the rotating shaft of motor 1, driven pulley 3 is bolted in a spring lever mechanism, and there is a spring 5 one end of lever 4,
The stroke of spring 5 is adjusted by adjusting the bolt 6 on the top of spring 5, so as to adjust the compression of driving wheel 2 and driven pulley 3
Degree, so as to obtain a suitable pretightning force, by be wrapped with carbon fiber or be wrapped with glass fibre macromolecule thermoplastic material (such as nylon,
ABS, PLA, PC, PPSF etc.) etc. composite fiber silk 7 be positioned between driven wheel, while be placed on driven pulley
In 3 groove, because driven pulley 3 is close on driving wheel 2 by pressing device, therefore composite fiber silk 7 is compacted
In the groove of driven pulley 3, driving wheel 2 drives driven pulley 3 to rotate, between being pressed on two-wheeled due to composite fiber silk 7,
So that composite fiber silk 7 moves along the tangential direction of driven wheel, so that composite fiber silk 7 completes feeding
Function.
Principle of the realization of cutting function based on a four-bar linkage structure, power is provided by servo module 8, servo module 8 is fixed
On intermediate plate 9, there is a wheel with holes on the output shaft of servo module 8, servo module 8 is by being connected in the connecting rod that it is taken turns
10 are connected with cutter fixture 11, and the blade 12 for cutting composite fiber silk 7 is fixed on into cutter by two bolts fixes
On part 11, cutter fixture 11 is connected by locating shaft 13 with intermediate plate 9, and the one end of locating shaft 13 is helicitic texture, is tightened
On intermediate plate 9, the other end passes through cutter fixture 11, is positioned below by a jump ring, and composite fiber silk 7 is from fixation
A pipeline 14 on intermediate plate 9, subsequently into the pipeline 15 being fixed on heat block 16, stays along under among two pieces of pipelines
There is a gap, blade 12 is exactly to cut off the composite fiber silk 7 inside it, such servo by being moved back and forth in gap
The rotation of output wheel in module 8 drives connecting rod mechanism movement, so as to be swung with cutter fixture 11 on locating shaft 13,
Blade 12 on cutter fixture 11 follows the swing of cutter fixture 11 to cut off composite fiber silk 7 in gap, so as to
Reach the purpose of cut-out composite fiber silk.
Melting function is mainly heated by the heating rod 17 being fixed on heat block 16 to heat block 16, heat block 16
Top is to connect the pipeline 15 into composite fiber silk 7, and what is connected below is the nozzle 18 for composite fiber silk 7, this
Sample makes the heating of heat block 16 by the heating of heating rod 17, so as to transmit heat to pipeline 15 and its nozzle 18, wraps up in its inside
There is the peripheral macromolecule thermoplastic material of carbon fiber or glass fibre to be sprayed again after being in molten condition, the detection of temperature is by being connected to
Temperature sensor 19 on heat block 16 detects, and the heat block 16 between pressing plate 20 and heat block location-plate 21 passes through two
Bolt is positioned, and heat block location-plate 21 is connected by interfix axle 22 with intermediate plate 9, and the both ends of interfix axle 22 are
Screw thread, one end are tightened on heat block location-plate 21, and the other end is fixed after passing through intermediate plate 9 by nut.
The realization of refrigerating function mainly realizes that electric fan 23 is arranged in fan hub 24, fan hub 24 by electric fan 23
It is bolted to by two on intermediate plate 9, the wind that the design of fan hub 24 allows fan to blow out directly blows answering in ejection
On condensation material filament 7, good cooling effect is played.
The present invention significantly improves the mechanical performance (such as intensity and toughness) of 3D printer printout, and maximum advantage is exactly this
3D printer head device is the structure for integrating feeding, cut-out, melting and its refrigerating function, and its is compact-sized, convenient
Practicality, substantially increase the application of continuous fiber composite material 3D printer.
Claims (1)
1. a kind of same layer continuous fiber composite material 3D printer ejecting device, it is mainly characterized by：The shower nozzle be collection feeding,
The composite 3D printer shower nozzle that cut-out, melting and refrigerating function are integrated；Its feed function is carried by motor (1)
For power, driving driving wheel (2) rotates, and driving wheel (2) can be gear or friction pulley, driving wheel (2) band
Dynamic driven pulley (3) rotates, and driven pulley (3) is one and is fixed on motor (1) with reeded flat wheel, driving wheel (2)
In rotating shaft, driven pulley (3) is bolted in a spring lever mechanism, and there is a spring (5) lever (4) one end, is led to
Overregulate the bolt (6) on spring (5) top to adjust the stroke of spring (5), so as to adjust driving wheel (2) with it is driven
The compression degree of (3) is taken turns, so as to obtain a suitable pretightning force, carbon fiber will be wrapped with or be wrapped with the macromolecule thermoplastic of glass fibre
The composite fiber silks (7) such as material (such as nylon, ABS, PLA, PC, PPSF) are positioned between driven wheel,
It is placed on simultaneously in the groove of driven pulley (3), because driven pulley (3) is close on driving wheel (2) by pressing device,
Therefore composite fiber silk (7) is pressed in the groove of driven pulley (3), and driving wheel (2) drives driven pulley (3) to turn
It is dynamic, because composite fiber silk (7) is pressed between two-wheeled so that composite fiber silk (7) is cut along what principal and subordinate took turns
Line direction is moved, so that composite fiber silk (7) completes feed function；The realization of its cutting function is based on a double leval jib knot
The principle of structure, power is provided by servo module (8), servo module (8) is fixed on intermediate plate (9), servo module (8)
Output shaft on have a wheel with holes, servo module (8) passes through the connecting rod (10) and cutter fixture (11) that are connected on its wheel
Connection, the blade (12) for cutting composite fiber silk (7) is fixed on cutter fixture (11) by two bolts,
Cutter fixture (11) is connected by locating shaft (13) with intermediate plate (9), and locating shaft (13) one end is helicitic texture, is twisted
Tightly on intermediate plate (9), the other end passes through cutter fixture (11), is positioned below by a jump ring, composite fiber silk
(7) from the pipeline (14) being fixed on intermediate plate (9) along under, subsequently into the pipeline being fixed on heat block (16)
(15) it is inner, a gap is left among two pieces of pipelines, blade (12) is exactly to be cut off by being moved back and forth in gap inside it
Composite fiber silk (7), the rotation of the output wheel on such servo module (8) drives connecting rod mechanism movement, so as to drive
Cutter fixture (11) is swung on locating shaft (13), and the blade (12) on cutter fixture (11) follows cutter to fix
Composite fiber silk (7) in gap are cut off in the swing of part (11), so as to reach the purpose of cut-out composite fiber silk；
It melts function and mainly heat block (16) is heated by the heating rod (17) being fixed on heat block (16), adds
Hot block (16) top is to connect the pipeline (15) into composite fiber silk (7), and what is connected below is composite fiber
The nozzle (18) of silk (7), heat block (16) heating is so made by heating rod (17) heating, so as to transmit heat to pipe
Road (15) and its nozzle (18), make to be wrapped with carbon fiber inside it or the outer layer macromolecule thermoplastic material of glass fibre is in molten
Sprayed again after state, the detection of temperature is detected by the temperature sensor (19) being connected on heat block (16), pressing plate (20)
Heat block (16) between heat block location-plate (21) is positioned by two bolts, and heat block location-plate (21) is logical
Cross interfix axle (22) to be connected with intermediate plate (9), interfix axle (22) both ends are screw thread, and one end is tightened in heat block
On location-plate (21), the other end is fixed after passing through intermediate plate (9) by nut；The realization of its refrigerating function mainly passes through electricity
Fan (23) realizes, electric fan (23) is arranged on that fan hub (24) is inner, and fan hub (24) fixed by two bolts
On intermediate plate (9), the design of fan hub (24) allows the wind of fan blowout directly to blow the composite fiber in ejection
On silk (7), cooling effect is played.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364573.1A CN107443739B (en) | 2016-05-30 | 2016-05-30 | A kind of same layer continuous fiber composite material 3D printer ejecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364573.1A CN107443739B (en) | 2016-05-30 | 2016-05-30 | A kind of same layer continuous fiber composite material 3D printer ejecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107443739A true CN107443739A (en) | 2017-12-08 |
| CN107443739B CN107443739B (en) | 2019-11-08 |
Family
ID=60484675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610364573.1A Expired - Fee Related CN107443739B (en) | 2016-05-30 | 2016-05-30 | A kind of same layer continuous fiber composite material 3D printer ejecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107443739B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895448A (en) * | 2021-02-06 | 2021-06-04 | 山东大学 | Long fiber composite material multi-nozzle 3D printer with cutting device |
| CN113561479A (en) * | 2021-04-30 | 2021-10-29 | 北京航空航天大学 | Laser-assisted forming modularized hybrid additive manufacturing device |
| CN113752546A (en) * | 2021-09-23 | 2021-12-07 | 江南大学 | Fuse deposition type 3D printing wire shearing device and operation method |
| CN113844030A (en) * | 2021-11-01 | 2021-12-28 | 深圳拓竹科技有限公司 | Method for 3D printer and 3D printer device |
| CN114290679A (en) * | 2021-12-30 | 2022-04-08 | 浙江闪铸三维科技有限公司 | 3D printer wire feeding structure and debugging method thereof |
| RU2776864C1 (en) * | 2021-11-17 | 2022-07-28 | Общество с ограниченной ответственностью "АТМ АКРОНЕКС" | Double extruder with a switching mechanism of the active 3d printer printhead with the possibility of electronic adjustment of the thread clamping force |
| US20220250316A1 (en) * | 2019-07-26 | 2022-08-11 | General Electric Company | Modular extrusion system for forming an article |
| CN115042438A (en) * | 2022-06-17 | 2022-09-13 | 南京航空航天大学 | Printing head structure for continuous fiber prepreg wire |
| US11759990B2 (en) | 2013-03-22 | 2023-09-19 | Markforged, Inc. | Three dimensional printing |
| US11787104B2 (en) | 2013-03-22 | 2023-10-17 | Markforged, Inc. | Methods for fiber reinforced additive manufacturing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5694324A (en) * | 1995-03-06 | 1997-12-02 | Masters; William E. | System and method for manufacturing articles using fluent material droplets |
| CN203863014U (en) * | 2014-05-27 | 2014-10-08 | 青岛金石塞岛投资咨询服务有限公司 | Consumable extrusion device of three-dimensional printer |
| CN105216329A (en) * | 2015-10-29 | 2016-01-06 | 武汉市贝恩三维科技有限公司 | Far and near end one 3D printhead |
| CN205202188U (en) * | 2015-11-19 | 2016-05-04 | 浙江韩益机电有限公司 | Three -dimensional shower nozzle of printing |
-
2016
- 2016-05-30 CN CN201610364573.1A patent/CN107443739B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5694324A (en) * | 1995-03-06 | 1997-12-02 | Masters; William E. | System and method for manufacturing articles using fluent material droplets |
| CN203863014U (en) * | 2014-05-27 | 2014-10-08 | 青岛金石塞岛投资咨询服务有限公司 | Consumable extrusion device of three-dimensional printer |
| CN105216329A (en) * | 2015-10-29 | 2016-01-06 | 武汉市贝恩三维科技有限公司 | Far and near end one 3D printhead |
| CN205202188U (en) * | 2015-11-19 | 2016-05-04 | 浙江韩益机电有限公司 | Three -dimensional shower nozzle of printing |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11759990B2 (en) | 2013-03-22 | 2023-09-19 | Markforged, Inc. | Three dimensional printing |
| US11787104B2 (en) | 2013-03-22 | 2023-10-17 | Markforged, Inc. | Methods for fiber reinforced additive manufacturing |
| US20220250316A1 (en) * | 2019-07-26 | 2022-08-11 | General Electric Company | Modular extrusion system for forming an article |
| CN112895448A (en) * | 2021-02-06 | 2021-06-04 | 山东大学 | Long fiber composite material multi-nozzle 3D printer with cutting device |
| CN113561479A (en) * | 2021-04-30 | 2021-10-29 | 北京航空航天大学 | Laser-assisted forming modularized hybrid additive manufacturing device |
| CN113561479B (en) * | 2021-04-30 | 2023-02-24 | 北京航空航天大学 | Laser-assisted forming modularized hybrid additive manufacturing device |
| CN113752546A (en) * | 2021-09-23 | 2021-12-07 | 江南大学 | Fuse deposition type 3D printing wire shearing device and operation method |
| CN113844030A (en) * | 2021-11-01 | 2021-12-28 | 深圳拓竹科技有限公司 | Method for 3D printer and 3D printer device |
| RU2776864C1 (en) * | 2021-11-17 | 2022-07-28 | Общество с ограниченной ответственностью "АТМ АКРОНЕКС" | Double extruder with a switching mechanism of the active 3d printer printhead with the possibility of electronic adjustment of the thread clamping force |
| CN114290679A (en) * | 2021-12-30 | 2022-04-08 | 浙江闪铸三维科技有限公司 | 3D printer wire feeding structure and debugging method thereof |
| CN114290679B (en) * | 2021-12-30 | 2023-10-03 | 浙江闪铸集团有限公司 | 3D printer wire feeding structure and debugging method thereof |
| CN115042438A (en) * | 2022-06-17 | 2022-09-13 | 南京航空航天大学 | Printing head structure for continuous fiber prepreg wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107443739B (en) | 2019-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107443739A (en) | A kind of same layer continuous fiber composite material 3D printer ejecting device | |
| CN1100959C (en) | Method and apparatus for making preforms from glass fiber strand material | |
| CN101680136B (en) | Spreading device for spreading out fibre filament bundles, and spreading method carried out using same | |
| CN109016490A (en) | A kind of continuous fiber reinforced composite materials 3D printer ejecting device of integrated morphology | |
| CN104392804A (en) | High-speed wire extrusion line | |
| CN107012713B (en) | A kind of mica paper drying system | |
| KR101676726B1 (en) | the manufacturing system for uniform prepreg | |
| KR20010032373A (en) | Method and apparatus for integrating organic fibers with mineral fibers | |
| CN107031007A (en) | A kind of friction material integument pressurizing unit | |
| CN103434155A (en) | Production technology of composite cable duct with thread groove | |
| CN108312540A (en) | A kind of vertical 3D printing waste material recovery device | |
| CN201862388U (en) | Granulating mechanism used on extruder and extruding and granulating device | |
| CN204270729U (en) | High speed electric wire extruding production line | |
| CN113103585B (en) | 3D printer head capable of laying continuous fiber web and printing method | |
| CN112917901B (en) | Pre-impregnated continuous fiber twin-screw extrusion type additive manufacturing printing nozzle | |
| CN109722792B (en) | Automatic production equipment for fiber cotton pipe | |
| CN206902471U (en) | A kind of mica paper drying system | |
| CN208792120U (en) | Using the fiber automatic cutting device of composite material | |
| CN208290240U (en) | For processing the single screw extrusion machine of plastic film | |
| CN206812389U (en) | A kind of friction material integument pressurizing unit | |
| CN206011715U (en) | A kind of can the controllable molding body temperature of detection temperature and can damping inflation film manufacturing machine | |
| CN112536169A (en) | Paint spraying equipment for elevator production | |
| CN208531683U (en) | A kind of more specification rock wool board assembly lines | |
| CN219338569U (en) | Plastic film blowing machine with barrier property | |
| CN207523158U (en) | A kind of cloth and rubber flame assembly machine |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20210530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |