CN109664519A - A kind of ablator device for casting towards honeycomb cored hole - Google Patents
A kind of ablator device for casting towards honeycomb cored hole Download PDFInfo
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- CN109664519A CN109664519A CN201910029136.8A CN201910029136A CN109664519A CN 109664519 A CN109664519 A CN 109664519A CN 201910029136 A CN201910029136 A CN 201910029136A CN 109664519 A CN109664519 A CN 109664519A
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- bracket
- perfusion
- honeycomb
- ablator
- loading pipe
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3097—Cosmonautical vehicles; Rockets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
- B29L2031/608—Honeycomb structures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Abstract
A kind of ablator device for casting towards honeycomb cored hole of the present invention belongs to perfusion filling production process equipment technical field, is related to a kind of automatic filling device of accurate switching filling body and double hose feeding mechanism of automation.The device is made of filling body and feeding mechanism, and filling body is made of loading pipe, stuffing box support, stuffing box, worm screw, worm screw fixed frame, connecting rod, shaft coupling, electric machine support and servo motor.Feeding mechanism is by perfusion motor, perfusion electric machine support, shaft coupling, fixed frame, lead screw, nut, double end extruded tube, linear guide, bracket, camera and connects disk and forms.The device overcomes the defects of inefficiency caused by artificial, low precision, ensure that the pouring material in filling process is quantitative, is controllably perfused, improves the reliability and the degree of automation of instillation process.Device cooperation industrial robot or numerically-controlled machine tool can be effectively applied to the automatic filling of heat insulation material in large, honeycomb core pore structure part, realize high-efficient homework.
Description
Technical field
The invention belongs to which filling production process equipment technical field is perfused, it is related to a kind of ablation material towards honeycomb cored hole
Expect device for casting.
Background technique
Spacecraft can generate severe friction with atmosphere with descent in transmitting, must for the safety for protecting spacecraft
Deposited one layer of solar heat protection layer material must be wrapped up on spacecraft surface.The structure of heat shield mostly uses greatly spherical crown shape regular hexagon honeycomb at present
Plate, and need for the ablator of low-density to be filled into the core bore of honeycomb cellular structure member, enables the heat shield produced
Have many advantages, such as that intensity height, light weight, thermal chokes effect are excellent.The pouring quality of low density ablator directly decides flight
The whole thermal protective performance of device is one of the important key technology for ensureing aircraft safety.In actual production, filling process one
As completed by man-hour manually hand-held Filling gun.It is complicated however as the increase (φ 2m or more) of spherical crown honeycomb size and instillation process
The continuous promotion of property, traditional manual method for filling have been difficult to be competent at.Main problem present in craft filling process has now:
Charging efficiency is too low, influx height is uncontrollable, pouring material and keriotheca have gap, pouring quality consistency difference etc..Consider
Service performance to heat shield ablator is influenced more obvious and lacks related perfusion equipment by perfusion effect, needs to design one
Work efficiency is high, adaptable, the reliable automatic filling device of structure for set, to meet production requirement.
2015, in the patent of application number 201510172144.X, " filling device was perfused in long and narrow space material to fruit maple pine etc.
And in perfusion fill process " in, a kind of large-scale perfusion equipment suitable for operation is perfused under long and narrow space is proposed, but it is this
It is complicated that equipment takes up an area larger and use process.2014, Gaoyang application number 201420653660.5 patent " one kind for pair
The material filling equipment of honeycomb filter core fill material " in, devise a kind of material filling device of Belt Conveying, structure letter
It is single, but it is also not high to fill precision.2008, Ke Yinglin etc. was " a kind of soft to honeycomb in the patent of application number 200820138345.3
Property material in filling ferrous powder auto-filling system " in, devise the magnetic powder filling device by the control of magnetic and digital control system,
This method filling uniformly, but is only applicable to the filling of magnetic material.
Summary of the invention
The present invention solves the technical problem of above-mentioned apparatus is overcome the shortcomings of, automated for large, honeycomb structural member
Problem is perfused, has invented a kind of ablator device for casting towards honeycomb cored hole.The device is by filling body and feeder
Structure composition, this is a kind of accurate switching filling body of automation, is carried out using the loading pipe of even circumferential distributed architecture primary pre-
After filler, most 60 honeycomb core bore can be completed to fill, filler intraductal material can also be modified.Feeding mechanism is using double
Head extruded tube design, it is compact-sized, flexible, have the function of high quality perfusion and the instant clearing and retrieving of waste material, efficiently completes honeycomb
Structural member automation perfusion.
The technical scheme adopted by the invention is that a kind of material device for casting towards ball crown type honeycomb cellular structure member, feature
It is that device for casting is made of filling body I and feeding mechanism II；
The filling body I is by loading pipe 1, stuffing box support 2, stuffing box 3, worm screw 4, worm screw fixed frame 5, connecting rod 6, connection
Axis device 7, electric machine support 8 and servo motor 9 form；Loading pipe 1 is collar plate shape, is evenly equipped with the identical small filler of 60 sizes thereon
Pipe, small filler pipe size ensure accurately to install with the jack a dimensional fits in stuffing box 3, equipped with burning in each small loading pipe
Corrosion material can be inserted into the jack a in stuffing box 3；Stuffing box 3 is mounted on stuffing box support 2 by a rotary shaft, filler
The side of case 3 is equipped with worm gear b, the number of teeth 60, it and worm screw 4 cooperate, and realizes the accurate rotation around stuffing box support 2；Servo
Motor 9 is mounted on stuffing box support 2 by electric machine support 8, and motor output shaft is connected through shaft coupling 7 with connecting rod 6；Connecting rod 6
The other end is connect with worm screw 4, and is positioned by worm screw fixed frame 5；Worm gear b on worm screw 4 and stuffing box 3 cooperates；Realize filler
The transmission ratio of 1:60 between case 3 and connecting rod 6 so that each small loading pipe can accurate motion to double end extruded tube 16 just under
Side.
The feeding mechanism II is by perfusion motor 10, perfusion electric machine support 11, shaft coupling 12, fixed frame 13, lead screw 14, spiral shell
Mother 15, double end extruded tube 16, linear guide 17, bracket 18, camera 19 and connect disk 20 composition；Bracket 18 is filled out by shaft g connection
Hopper support 2 rotates stuffing box support 2 for filling body I and is sent into or sends out bracket 18；Flange hole is provided on the top cover of bracket 18
F is used to connect numerically-controlled machine tool or robot end, enables a device to move to the position for needing to be perfused；The intermediate sky of bracket 18
Between place filling body I, the protrusion on top cover be to install the position of lead screw, on top cover there are two raised fronts through-hole for double end
Extruded tube 16 passes through, and a pouring head e is stretched out under the bottom surface of bracket 18, and diameter is less than honeycomb inscribed circle diameter, and length is longer than
Honeycomb height, pouring head e can extend into honeycomb bottom end and complete perfusion operation；
The perfusion electric machine support 11 of fixed perfusion motor 10 is mounted on the top of bracket 18；The output shaft that motor 10 is perfused is logical
It crosses shaft coupling 12 to be connected with lead screw 14, lead screw 14 is fixed on mount 18 by fixed frame 13；15 sets of nut on lead screw 14, it is double
Head extruded tube 16 is mounted on the side of nut 15；Double end extruded tube 16 has long and short two extrusion head c, d；Linear guide 17 is fixed on
On bracket 18, cooperates with the guide-track groove on double end extruded tube 16, realize the linear movement of extruded tube；The side of bracket is equipped with filling
Infuse position monitor camera 19；The bottom surface that disk 20 is mounted on bracket 18 is connect, for accepting extra waste material.
The device for casting realizes ablator automatic filling method, and specific step is as follows:
(1) pre- filler, the honeycomb hole number being perfused as needed will be in the ablator loading pipe 1 of specified amount；
(2) loading pipe is in place, loading pipe 1 is inserted into the location hole of condiment box 3, and rotates filling body I, by its around
Shaft g is sent into the fixation position in bracket 18.
(3) by the mobile device for casting of lathe or robot, setting position is adjusted according to the feedback result of camera 19, makes to fill
The core bore of head alignment honeycomb；
(4) double end extruded tube 16 pushes, and ablator is pushed into pouring head from loading pipe 1；
(5) double end extruded tube 16 retracts, and is withdrawn into outside bracket 18 completely, rotary condiment case 3, by the remnants in loading pipe 1
Waste material cutting；
(6) double end pipe 16 pushes, and ablator is expressed into honeycomb by long extrusion head, while short extrusion head is by previous step
The waste material push-in scaled off connects in disk 20；
(7) step 4 to 6 is repeated, the perfusion of ablator in remaining loading pipe is completed；
(8) pre- filler carries out further work until perfusion again after the perfusion of all ablators in completion loading pipe 1
Task terminates.
The beneficial effects of the invention are as follows the present apparatus to use a kind of discoid filling body, carry out it is primary it is prefilled can be with
Complete the perfusion of multiple subsequent honeycomb holes.The accurate fixed of filler endless tube 1 may be implemented in the transmission mechanism for cooperating worm and worm wheel
Position.Real-time Feedback can be carried out to perfusion position by being detected by position of the camera 19 to pouring head.16 energy of double end extruded tube
Enough realize the recycling of the quantitative perfusion and excess waste of pouring material.Solves the perfusion low-density ablation into honeycomb cored hole
The problem of heat-barrier material, is realized towards honeycomb cored hole the defects of eliminating inefficiency caused by artificial, low precision
Ablator automatic filling, ensure that the accuracy of filling process.Improve the precision of honeycomb cored hole ablator perfusion
And efficiency, influence of other human factors to filling process is eliminated, ensure that the pouring material in filling process is quantitative, controllable
Perfusion.
Device cooperation industrial robot or numerically-controlled machine tool are effectively applied to large, honeycomb cored hole structural member
Accurate automatic filling improves the reliability and the degree of automation of instillation process to realize operation flexibly and efficiently.
Detailed description of the invention
Fig. 1-device overall structure diagram.Wherein: I- filling body, II- feeding mechanism.
Fig. 2-filling body I structural schematic diagram.Wherein: 1- filler endless tube, 2- stuffing box support, 3- stuffing box, 4- snail
Bar, 5- worm screw fixed frame, 6- connecting rod, 7- shaft coupling, 8- electric machine support, 9- servo motor, a- jack, b- worm gear.
Fig. 3-feeding mechanism II structural schematic diagram.Wherein: motor is perfused in 10-, and electric machine support, 12- shaft coupling is perfused in 11-
Device, 13- fixed frame, 14- lead screw, 15- nut, 16- double end extruded tube, 17- linear guide, 18- bracket, 19- camera, 20- connect
Disk, 21- shaft, c- long extrusion head, the short extrusion head of d-, e- pouring head, f- flange hole, g- shaft.
Fig. 4-automatic filling process detailed maps.Wherein, Fig. 4 a)-long extrusion head c is directed at filler endless tube 1, Fig. 4 b)-
Ablator is pushed into pouring head e by long extrusion head c, Fig. 4 c)-cut off the excess waste in loading pipe, realize that filler is repaired
Whole, Fig. 4 d)-double end extruded tube 16 pushes down on completion perfusion.
Specific embodiment
The embodiment that the invention will now be described in detail with reference to the accompanying drawings.
As shown in Figure 1 and Figure 2, filler endless tube 1 is collar plate shape, is evenly equipped with the small loading pipe of 60 same sizes thereon, each
For the ablator being equipped in loading pipe for a honeycomb hole to be perfused, there are 60 jack a in 3 upper surface of stuffing box, is used for and filler
Pipe 1 is accurately positioned, and there is worm gear b in the side of stuffing box 3, has 60 teeth, realizes accurate rotation with the cooperation of worm screw 4.Stuffing box 3
Bottom end is fixed on stuffing box support 2, and can be rotated around in-between axis, and servo motor 9 is placed on stuffing box support 2, is led to
It crosses shaft coupling 8 and connecting rod 6 is connected with worm screw 4, rotated by Serve Motor Control worm screw, realized 1 between stuffing box 3 and connecting rod 6:
60 transmission ratio so that each small loading pipe can accurate motion to the underface of double end extruded tube 16.
It is used to connect numerically-controlled machine tool or robot end as shown in figure 3, being provided with flange hole f on the top cover of bracket 18, so that
Device can move to the position for needing to be perfused.The intermediate space of bracket 18 can place filling body I, by turning when pre- filler
Filling body I is produced bracket by axis g；When needing to be irrigated into honeycomb hole, then filling body I gone to by branch by shaft g
In frame 18.Protrusion on 18 top cover of bracket is to install the position of lead screw, and through-hole is squeezed for double end there are two raised fronts on top cover
Pressure pipe 16 passes through.Motor 10 is perfused to install on mount 18 by perfusion electric machine support 11, and lead screw is driven by shaft coupling 12
14 rotations, lead screw 14 are installed on mount 18 by fixed frame 13, and the nut 15 of lead screw is fixed on double end extruded tube 16, double end
Extruded tube 16 by one is long and the other is short two form, long extruded tube c is used for the ablator that will be stored in loading pipe 1 and releases, short
Extruded tube d be used to release extra waste material to connecing in disk 20, double end extruded tube 16 moves along a straight line in linear guide 17, complete
At the compressional movement on vertical direction, a pouring head e is stretched out under the bottom surface of bracket 18, it is straight that diameter is less than honeycomb inscribed circle
Diameter, length are longer than honeycomb height, and pouring head e can extend into honeycomb bottom end and complete perfusion operation, and camera 19 is mounted on branch
The side of frame 18 can acquire honeycomb image in real time, and device is assisted to be accurately positioned.
Fig. 4 is the detailed maps of automatic filling process, indicates that long and short two extrusion head c, d of double end extruded tube 16 is being filled
Effect and automatic filling process during note.The filler endless tube 1 equipped with ablator is directed at long extrusion head c, such as Fig. 4 first
(a) shown in.Long extrusion head c is protruded into the loading pipe for filling ablator again, a certain number of ablators are pushed into bracket
In the pouring head e of 18 lower sections, as shown in Fig. 4 (b).Extruded tube 16 retracts, and releases to except bracket 18.Rotate clockwise stuffing box
3, the excess waste in loading pipe is cut off, filler finishing is realized, as shown in Fig. 4 (c).Double end extruded tube 16 is pushed down on,
Ablator in pouring head is squeezed out and completes perfusion by long extrusion head c, and short extrusion head d is protruded into the loading pipe equipped with excess waste
Excess waste is expressed into and is connect in disk 20, as shown in Fig. 4 (d).
Specific step is as follows using device for casting realization ablator automatic filling method by the present invention:
(1) pre- filler, the honeycomb hole number being perfused as needed will be in the ablator loading pipe 1 of specified amount；
(2) loading pipe is in place, loading pipe 1 is inserted into the location hole of condiment box 3, and rotates filling body I, by its around
Shaft g is sent into the fixation position in bracket 18.
(3) by the mobile device for casting of lathe or robot, setting position is adjusted according to the feedback result of camera 19, makes to fill
The core bore of head alignment honeycomb；
(4) double end extruded tube 16 pushes, and ablator is pushed into pouring head from loading pipe 1；
(5) double end extruded tube 16 retracts, and is withdrawn into outside bracket 18 completely, rotary condiment case 3, by the remnants in loading pipe 1
Waste material cutting；
(6) double end pipe 16 pushes, and ablator is expressed into honeycomb by long extrusion head, while short extrusion head is by previous step
The waste material push-in scaled off connects in disk 20；
(7) step 4 to 6 is repeated, the perfusion of ablator in remaining loading pipe is completed；
(8) pre- filler carries out further work until perfusion again after the perfusion of all ablators in completion loading pipe 1
Task terminates.
The present invention improves the precision and efficiency of honeycomb cored hole ablator perfusion, eliminates other human factors to filling
The influence of note process ensure that the pouring material in filling process is quantitative, is controllably perfused.The device cooperates industrial robot or number
Control lathe is effectively applied to the accurate automatic filling of large, honeycomb cored hole structural member, makees flexibly and efficiently to realize
Industry.
Claims (2)
1. a kind of ablator device for casting towards honeycomb cored hole, characterized in that device for casting is by filling body (I) and send
Expect mechanism (II) composition；
Loading pipe (1) in the filling body (I) is collar plate shape, is made of 60 small loading pipes of independence being evenly arranged, small
Filler pipe size to ensure accurately to install, is equipped with ablation material with jack (a) dimensional fits in stuffing box (3) in each loading pipe
Material；Stuffing box (3) is coaxially placed on stuffing box support (2), and the side of stuffing box (3) is equipped with worm gear (b), the number of teeth 60,
It and worm screw 4 cooperate, and realize the accurate rotation around stuffing box support 2；Servo motor (9) is mounted on by electric machine support (8) and is filled out
On hopper support (2), the output shaft of servo motor (9) is connected through shaft coupling (7) with connecting rod (6), the other end of connecting rod (6) and snail
Bar (4) connection, and positioned by worm screw fixed frame (5)；
Bracket (18) in the feeding mechanism (II) rotates stuffing box support by shaft (g) bonding pad case support (2)
(2) filling body (I) is sent into or sends out bracket (18)；Flange hole (f) is provided on the top cover of bracket (18) to be used to connect numerical control
Lathe or robot end enable a device to move to the position for needing to be perfused, and the intermediate space of bracket (18) places filler
Mechanism (I), the protrusion on bracket (18) top cover are to install the position of lead screw, and there are two through-holes for double end in raised front on top cover
Extruded tube (16) passes through, and a pouring head (e) is stretched out under the bottom surface of bracket (18), diameter is less than honeycomb inscribed circle diameter, long
Degree is longer than honeycomb height, and pouring head (e) can extend into honeycomb bottom end and complete perfusion operation；
The perfusion electric machine support (11) of fixed perfusion motor (10) is mounted in the top of bracket (18)；The output shaft of motor (10) is perfused
It is connected by shaft coupling (12) with lead screw (14), lead screw (14) is fixed on bracket (18) by fixed frame (13), nut (15)
It is sleeved on lead screw (14), double end extruded tube (16) is fixed on the side of nut (15), and linear guide (17) is fixed on bracket
(18) on, cooperate with the guide-track groove on double end extruded tube (16), realize the linear movement of double end extruded tube (16), double end extruded tube
(16) it is made of long and short two extrusion head (c), (d), the effect of long extrusion head (c) is to squeeze out pouring material, short extrusion head (d)
Effect be processing waste material, the side of bracket (18) be equipped with perfusion position monitor camera (19), bracket (18) bottom surface installation
Connect disk (20).
2. a kind of ablator device for casting towards honeycomb cored hole as described in claim 1, characterized in that perfusion dress
Setting realization ablator automatic filling method, specific step is as follows:
(1) pre- filler, the honeycomb hole number being perfused as needed will be in the ablator loading pipe (1) of specified amount；
(2) loading pipe is in place, and loading pipe (1) is inserted into the location hole of condiment box (3), and rotates filling body (I), by it
(g) is sent into the fixation position in bracket (18) around the shaft；
(3) by the mobile device for casting of lathe or robot, setting position is adjusted according to the feedback result of camera (19), makes to be perfused
The core bore of head (e) alignment honeycomb；
(4) double end extruded tube (16) pushes, and ablator is pushed into pouring head (e) from loading pipe (1)；
(5) double end extruded tube (16) retracts, and is withdrawn into bracket (18) completely outside, rotary condiment case (3) will be in loading pipe (1)
Residual waste cutting；
(6) double end pipe (16) pushes, and ablator is expressed into honeycomb by long extrusion head (c), while short extrusion head (d) will be upper
The waste material push-in that one step scales off connects in disk (20)；
(7) step 4 to 6 is repeated, the perfusion of ablator in remaining loading pipe is completed；
(8) it completes in loading pipe (1) after the perfusion of all ablators, pre- filler carries out further work until perfusion is appointed again
Business terminates.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811472980X | 2018-12-04 | ||
| CN201811472980 | 2018-12-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109664519A true CN109664519A (en) | 2019-04-23 |
| CN109664519B CN109664519B (en) | 2020-04-28 |
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ID=66149375
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910029136.8A Active CN109664519B (en) | 2018-12-04 | 2019-01-12 | Ablation material filling device for honeycomb core hole |
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| Country | Link |
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| CN (1) | CN109664519B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5138335B2 (en) * | 1973-11-16 | 1976-10-21 | ||
| JPH0245965B2 (en) * | 1982-03-12 | 1990-10-12 | Grace W R & Co | |
| JP2009006648A (en) * | 2007-06-29 | 2009-01-15 | Canon Chemicals Inc | Method and apparatus for crushing foamed roller and manufacturing method of foamed roller |
| CN201261139Y (en) * | 2008-09-16 | 2009-06-24 | 浙江大学 | Automatic filling system for filling ferrous powder to honeycomb flexible material |
| CN204054547U (en) * | 2014-10-27 | 2014-12-31 | 威海宏程机电设备有限公司 | A kind of resin device for casting |
| CN104755244A (en) * | 2012-11-15 | 2015-07-01 | 韩国生产技术研究院 | Mixing head having enhanced mixing performance and discharging device thereof |
-
2019
- 2019-01-12 CN CN201910029136.8A patent/CN109664519B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5138335B2 (en) * | 1973-11-16 | 1976-10-21 | ||
| JPH0245965B2 (en) * | 1982-03-12 | 1990-10-12 | Grace W R & Co | |
| JP2009006648A (en) * | 2007-06-29 | 2009-01-15 | Canon Chemicals Inc | Method and apparatus for crushing foamed roller and manufacturing method of foamed roller |
| CN201261139Y (en) * | 2008-09-16 | 2009-06-24 | 浙江大学 | Automatic filling system for filling ferrous powder to honeycomb flexible material |
| CN104755244A (en) * | 2012-11-15 | 2015-07-01 | 韩国生产技术研究院 | Mixing head having enhanced mixing performance and discharging device thereof |
| CN204054547U (en) * | 2014-10-27 | 2014-12-31 | 威海宏程机电设备有限公司 | A kind of resin device for casting |
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| Publication number | Publication date |
|---|---|
| CN109664519B (en) | 2020-04-28 |
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