CN105855527A - Continuous casting machine - Google Patents
Continuous casting machine Download PDFInfo
- Publication number
- CN105855527A CN105855527A CN201610319814.0A CN201610319814A CN105855527A CN 105855527 A CN105855527 A CN 105855527A CN 201610319814 A CN201610319814 A CN 201610319814A CN 105855527 A CN105855527 A CN 105855527A
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- China
- Prior art keywords
- tail
- drive sprocket
- head
- mould
- nozzle
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/04—Handling or stripping castings or ingots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D30/00—Cooling castings, not restricted to casting processes covered by a single main group
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention provides a continuous casting machine, and belongs to metallurgical equipment. The continuous casting machine comprises a machine head frame, a machine body frame, a machine tail frame, a die, machine head transmission chain wheels, a machine head transmission main shaft, a machine tail transmission chain wheel, a machine tail transmission shaft, a motor, a speed reducer, a transmission chain, cooling devices, a die releasing agent spraying device, a die releasing device and a casting port, wherein the machine head frame, the machine body frame and the machine tail frame are all of rectangular steel frame structures and are sequentially integrally fixedly connected; bearing blocks which are assembled to the machine head transmission main shaft are mounted at two sides of the machine head frame; the machine head transmission chain wheels are mounted at two ends of the machine head transmission main shaft. The continuous casting machine is simple in structure; all components can be independently dismounted and replaced, so that the convenience of maintenance is ensued, a plurality of problems caused by manual breaking can be completely solved, and as a result, huge economic benefits can be brought to metallurgical enterprises.
Description
Technical field:
The invention belongs to a kind of metallurgical equipment, invention entitled continuous casting machine.
Background technology:
In metal smelt industry, after the metal cools of molten condition is solidified, how according to client
Demand go to make fragment, become the biggest problem, past majority is all molten by smelted
Melt metal to pour in a cooling bay the biggest, after waiting its solidification, then by manpower by bulk
Alloy breaks down is opened, the most original mode, has shortcomings, uses artificial, and cost is very big,
In shattering process, the chip sputtered easily is hurted sb.'s feelings, danger close, in broken product out
Having the broken foam of at least 20%, when these broken foams are sold, price just can not show a candle to qualified products, makes
Become loss.
The ferroalloy casting machine proposed in documents (Application No. 200810230825.7),
Lack releasing agent spraying process, make the alloy of cast into molds be difficult to from mould depart from, underlying
Cooling water spray equipment can leak, hit the demoulding thick stick demoulding during die flip, because lacking de-
Mould agent, its demoulding efficiency is inevitable low, and mould overturns for a long time, causes described locating shaft
Heavy wear, mould taps demoulding thick stick for a long time, the most as easy as rolling off a log causes mould to damage, and lacks and subtracts
Speed device and the buffering of shaft coupling, the most easily cause burn-down of electric motor, and repair and replacement are all wasted time and energy,
In sum, there is significant drawback in ferroalloy casting machine disclosed in documents.
Summary of the invention:
Therefore, it is necessary to a kind of simple in construction is provided, and can quantity-produced casting machine.
Continuous casting machine, including headstock, fuselage cradle, aircraft tail shelf, mould, head driving-chain
Wheel, head transmission main shaft, tail drive sprocket, tail power transmission shaft, motor, decelerator, biography
Dynamic chain, chiller, mold releasing agent spraying device, stripper apparatus and casting gate；Headstock,
Fuselage cradle and aircraft tail shelf are rectangular bar of steel shelf structure, and headstock, fuselage cradle and aircraft tail shelf are solid successively
Surely link together；Bearing block, head transmission main shaft and headstock two are installed in the both sides of headstock
The bearing block of side is equipped with, and head drive sprocket is installed at the two ends of head transmission main shaft；Aircraft tail shelf
Bearing block is installed in both sides, and the bearing block of tail power transmission shaft and aircraft tail shelf both sides is equipped with, tail transmission
Tail drive sprocket is installed at the two ends of axle；Head drive sprocket and the installation position of tail drive sprocket
Put corresponding；Motor and decelerator are arranged on headstock with the side at headstock, motor and
Decelerator is in transmission connection, and the clutch end of decelerator and one end of shaft coupling connect, shaft coupling
The other end and head transmission main shaft one end connect；Driving chain is arranged on head transmission main shaft
Between the head drive sprocket of both sides and the tail drive sprocket of tail power transmission shaft both sides, become parallel right
Claim around head drive sprocket and tail drive sprocket Synchronous Transmission；Motor passes through decelerator band motivation
Head transmission main shaft rotates, and head transmission main shaft rotational band motivation head drive sprocket rotates, and head passes
Movable sprocket can drive tail drive sprocket by driving chain；The two ends of mould are respectively and transmission
Chain becomes vertical being arranged between two driving chains；Casting gate is arranged on aircraft tail shelf top die
Above tool, the running channel alignment mould of casting gate can make molten steel flow into mould uniformly；Releasing agent
Spray equipment is parallel is fixedly mounted on aircraft tail shelf rearward end, the shower nozzle direction of mold releasing agent spraying device
Just releasing agent is uniformly sprayed on mould by mould；Stripper apparatus be installed on driving chain it
Between, inside head drive sprocket and be fixedly mounted on fuselage cradle；Chiller is fixedly mounted on
On fuselage cradle, coolant is just uniformly sprayed at mould by the shower nozzle direction of chiller by mould
On.
Preferably, stripper apparatus uses the vibration demoulding, by the vibration of certain frequency, taps mould
Tool, coordinates effect and the cooling effect of cooling water of releasing agent, makes alloy pig all from mould
Depart from.
Preferably, described chiller includes coolant hose, shower nozzle and axial flow blower；Coolant
The outlet of pipe and shower nozzle fixed installation, the outlet of shower nozzle and the outlet of axial flow blower are equidirectional parallel
Fixed installation.What coolant was the most frequently used cools down water exactly, and the effect of chiller is to cool down
Water atomization is sprayed on mould, reduces mold temperature, makes alloy pig and mould be rapidly separated, contracting
Short cooling cycle and mold use life-span and use cycle can be extended.
Preferably, described mold releasing agent spraying device include nozzle, regulation short tube, clamp nut,
Pipe joint, nozzle holder, main support and pipeline；Suit regulation short tube, nozzle tail in the middle part of nozzle
One end of end and pipe joint is equipped with, and the other end of pipe joint and pipeline are equipped with, and nozzle holder is straight
Corner structure, nozzle holder two ends are shaped with hole, and nozzle is fixedly mounted on nozzle holder by clamp nut
In the hole at two ends, two nozzles are at a right angle to be mounted opposite, and nozzle holder is arranged on above main support.
Nozzle is for being arranged in pairs, and every pair of nozzle is divided into release agent nozzle and gas nozzle, and releasing agent flows out
Coordinate gas injection to be atomized completely by releasing agent, uniformly spray on mould, according to mould
The width in tool face, optional multipair nozzle is mounted side by side use at equal intervals.
The present invention possesses advantages below: thoroughly break away from original hand breaking, reduces cost of labor,
Working environment also can be substantially improved, and occurs the accident hurted sb.'s feelings of splashing never again；Owing to connecting
Continuous metaplasia is produced, and its efficiency also is able to rise to conventional several times even decades of times, and work efficiency surpasses
Amount improves；The broken foam amount of the generation of hand breaking is very big, and broken foam amount can be reduced by the present invention
To zero, the final alloy ingot of output all can reach the granularity of customer demand, and economic benefit is big
Big lifting.
Compared to documents, mould is fixed on driving chain by the present invention, will not overturn,
Use the built-in vibration stripper apparatus demoulding, mould will not be made to tap, do not cause abrasion and damage,
Protect mould and drive system, it is ensured that safety in production, be substantially reduced maintenance cost, cooling
Device is arranged on above mould, and cooling water all can spray on mould and alloy pig, will not
Water clock, and can rapidly mould and alloy pig be cooled down, releasing agent is sprayed on die surface, both protects
Having protected mould can make again the use of alloy pig quicker de-mold, decelerator and shaft coupling well protect
Motor, makes the operating that motor can be the most stable, it is achieved safe and continuous produces.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of casting machine.
Fig. 2 is the structural representation of chiller.
Fig. 3 is mold releasing agent spraying device structural representation.
In figure: headstock 1, fuselage cradle 2, aircraft tail shelf 3, mould 4, head drive sprocket 5, machine
Tail drive sprocket 6, motor 7, decelerator 8, chiller 9, mold releasing agent spraying device 10,
Stripper apparatus 11, casting gate 12, head transmission main shaft 13, tail power transmission shaft 14, driving-chain
Bar 15, coolant hose 91, shower nozzle 92, axial flow blower 93, nozzle 101, regulation short tube 102,
Clamp nut 103, pipe joint 104, nozzle holder 105, main support 106 and pipeline 107.
Detailed description of the invention:
Refer to continuous casting machine as shown in Figure 1, including headstock 1, fuselage cradle 2, machine
Tailstock 3, mould 4, head drive sprocket 5, head transmission main shaft 13, tail drive sprocket
6, tail power transmission shaft 14, motor 7, decelerator 8, driving chain 15, chiller 9,
Mold releasing agent spraying device 10, stripper apparatus 11 and casting gate 12；Headstock 1, fuselage cradle 2
Being rectangular bar of steel shelf structure with aircraft tail shelf 3, headstock 1, fuselage cradle 2 and aircraft tail shelf 3 are successively
It is fixed together；Bearing block, head transmission main shaft 13 and machine are installed in the both sides of headstock 1
The bearing block of the headstock 1 both sides is equipped with, and head driving-chain is installed at the two ends of head transmission main shaft 13
Wheel 5；Bearing block, tail power transmission shaft 14 and aircraft tail shelf 3 both sides are installed in the both sides of aircraft tail shelf 3
Bearing block is equipped with, and tail drive sprocket 6 is installed at the two ends of tail power transmission shaft 14；Head driving-chain
Wheel 5 is corresponding with the installation site of tail drive sprocket 6；Motor 7 and decelerator 8 are with at machine
The side of the headstock 1 is arranged on headstock 1, and motor 7 and decelerator 8 are in transmission connection, and slows down
The clutch end of device 8 and one end of shaft coupling connect, the other end of shaft coupling and head transmission
One end of main shaft 13 connects；Driving chain 15 is arranged on the head of head transmission main shaft 13 both sides
Between the tail drive sprocket 6 of drive sprocket 5 and tail power transmission shaft 14 both sides, become Parallel Symmetric
Around head drive sprocket 5 and tail drive sprocket 6 Synchronous Transmission；Motor 7 is by decelerator 8
Head transmission main shaft 13 is driven to rotate, head transmission main shaft 13 rotational band motivation head drive sprocket
5 rotate, and head drive sprocket 5 can drive tail drive sprocket 6 by driving chain 15；
The two ends of mould 4 become with driving chain 15 respectively vertical be arranged on two driving chains 15 it
Between；Casting gate 12 is arranged on above aircraft tail shelf 3 top mold 4, the running channel pair of casting gate 12
Quasi-mode tool 4 can make molten steel flow into mould 4 uniformly；Mold releasing agent spraying device 10 is parallel solid
Dingan County is contained in aircraft tail shelf 3 rearward end, and the shower nozzle direction of mold releasing agent spraying device 10 is just to mould
Releasing agent is uniformly sprayed on mould 4 by 4；Stripper apparatus 11 is installed on driving chain 15
Between, inside head drive sprocket 5 and be fixedly mounted on fuselage cradle 2；Chiller 9 is solid
Dingan County is contained on fuselage cradle 2, and the shower nozzle direction of chiller 9 is just equal by coolant to mould 4
Even is sprayed on mould 4.
Refer to chiller 9 as shown in Figure 2, it is preferred that shown chiller 9 wraps
Include coolant hose 91, shower nozzle 92 and axial flow blower 93；The outlet of coolant hose 91 and shower nozzle
92 fixed installations, the outlet of shower nozzle 92 and the outlet of axial flow blower 93 are equidirectional parallel fixing
Install.What coolant was the most frequently used cools down water exactly, and the effect of chiller is to cool down water smoke
Change and be sprayed on mould, reduce mold temperature, make alloy pig and mould be rapidly separated, shorten cold
But cycle and mold use life-span and use cycle can be extended.
Refer to mold releasing agent spraying device 10 as shown in Figure 3, it is preferred that the shown demoulding
Agent spray equipment 10 includes nozzle 101, regulation short tube 102, clamp nut 103, pipe joint
104, nozzle holder 105, main support 106 and pipeline 107；Suit regulation in the middle part of nozzle 101
Short tube 102, one end of nozzle 101 tail end and pipe joint 104 is equipped with, pipe joint 104 another
One end and pipeline 107 are equipped with, and nozzle holder 105 is right-angle structure, nozzle holder 105 two ends
Being shaped with hole, nozzle 101 is fixedly mounted on the hole at nozzle holder 105 two ends by clamp nut 103
In, two nozzles 101 are at a right angle to be mounted opposite, and nozzle holder 105 is arranged on main support 106
Top.Nozzle is for being arranged in pairs, and every pair of nozzle is divided into release agent nozzle and gas nozzle, the demoulding
Agent is flowed out and is coordinated gas injection to be atomized completely by releasing agent, uniformly sprays on mould,
According to the width of die face, optional multipair nozzle is mounted side by side use at equal intervals.
Preferably, stripper apparatus uses the vibration demoulding, by the vibration of certain frequency, taps mould
Tool, coordinates effect and the cooling effect of cooling water of releasing agent, makes alloy pig all from mould
Depart from.
Embodiment:
After start, electric machine rotation, drive to decelerator, decelerator drives head by shaft coupling
Transmission main shaft, head transmission main shaft drives head drive sprocket, and head drive sprocket passes through transmission
Chain-driving tail drive sprocket, forms the drive mechanism of Guan Bi, fixing peace on driving chain
The mould of dress operates the most therewith, and mould is first through the mold releasing agent spraying device at aircraft tail shelf rear portion, at mould
Tool one layer of releasing agent of surface spraying, then goes to below casting gate, and the molten steel in ladle is through watering
The buffering of casting nozzle, in the uniform mould flowing into the most spray coated releasing agent, the most slowly to machine
Headstock direction is run, and period passes through axle through twice chiller, the cooling water in chiller
The gas effect of flow fan blowout, is sprayed on the alloy pig in mould and mould uniformly, it is achieved
Rapidly mould and alloy pig are cooled down under the double effects of cooling water and blow gas, when running extremely
During head drive sprocket, complete cooling, through head drive sprocket rotate and under, major part close
Ingot is under the effect of releasing agent and mould separating, and residue minority fails to depart from once, then continue
Operating, after the stripper apparatus vibration beating inside head drive sprocket, all de-from mould
From, the casting operation of complete set completes, and empty mould remains in operation to mold releasing agent spraying device,
Continue next one circulation, it is achieved work continuously, uninterruptedly produce.
Efficiency is that conventional outmoded technique cannot be mentioned in the same breath completely, and safety coefficient carries the most significantly
Height, reduces artificial simultaneously, reduces employment cost, moreover it is possible to improve working environment.
The present invention have passed through test of many times and improvement, utilizes simple and effective frame for movement,
Complete the most nerve-wracking subpackage work in metal smelt, be worth of widely use.
Claims (3)
1. continuous casting machine, it is characterised in that: include headstock, fuselage cradle, aircraft tail shelf, mould,
Head drive sprocket, head transmission main shaft, tail drive sprocket, tail power transmission shaft, motor,
Decelerator, driving chain, chiller, mold releasing agent spraying device, stripper apparatus and casting gate；
Headstock, fuselage cradle and aircraft tail shelf are rectangular bar of steel shelf structure, headstock, fuselage cradle and tail
Frame is fixedly connected sequentially together；Bearing block is installed in the both sides of headstock, head transmission main shaft and
The bearing block of headstock both sides is equipped with, and head drive sprocket is installed at the two ends of head transmission main shaft；
Bearing block is installed in the both sides of aircraft tail shelf, and the bearing block of tail power transmission shaft and aircraft tail shelf both sides is equipped with,
Tail drive sprocket is installed at the two ends of tail power transmission shaft；Head drive sprocket and tail drive sprocket
Installation site corresponding；Motor and decelerator are arranged on headstock with the side at headstock,
Motor and decelerator are in transmission connection, and the clutch end of decelerator and one end of shaft coupling connect,
The other end of shaft coupling and one end of head transmission main shaft connect；Driving chain is arranged on head and passes
Between the dynamic head drive sprocket of main shaft both sides and the tail drive sprocket of tail power transmission shaft both sides, become
Parallel Symmetric is around head drive sprocket and tail drive sprocket Synchronous Transmission；Motor passes through decelerator
Driving head transmission main shaft to rotate, head transmission main shaft rotational band motivation head drive sprocket rotates,
Head drive sprocket can drive tail drive sprocket by driving chain；The two ends of mould are respectively
With driving chain becomes vertical being arranged between two driving chains；Casting gate is arranged on aircraft tail shelf
Above top mold, the running channel alignment mould of casting gate can make molten steel flow into mould uniformly；
Mold releasing agent spraying device is parallel is fixedly mounted on aircraft tail shelf rearward end, the spray of mold releasing agent spraying device
Releasing agent is just uniformly sprayed on mould by head direction by mould；Stripper apparatus is installed on transmission
Between chain, inside head drive sprocket and be fixedly mounted on fuselage cradle；Chiller is fixed
Being arranged on fuselage cradle, coolant is just uniformly sprayed by the shower nozzle direction of chiller by mould
On mould.
2. continuous casting machine as claimed in claim 1, it is characterised in that: described chiller includes
Coolant hose, shower nozzle and axial flow blower；The outlet of coolant hose and shower nozzle fixed installation, shower nozzle
Outlet and the equidirectional parallel fixed installation of outlet of axial flow blower.
3. continuous casting machine as claimed in claim 1, it is characterised in that: described releasing agent spraying dress
Put and include nozzle, regulation short tube, clamp nut, pipe joint, nozzle holder, main support and pipe
Road；Suit regulation short tube in the middle part of nozzle, one end of nozzle tail end and pipe joint is equipped with, pipe joint
The other end and pipeline be equipped with, nozzle holder is right-angle structure, and nozzle holder two ends are shaped with hole,
Nozzle is fixedly mounted in the hole at nozzle holder two ends by clamp nut, two nozzle phases at a right angle
To installation, nozzle holder is arranged on above main support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610319814.0A CN105855527A (en) | 2016-05-12 | 2016-05-12 | Continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610319814.0A CN105855527A (en) | 2016-05-12 | 2016-05-12 | Continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105855527A true CN105855527A (en) | 2016-08-17 |
Family
ID=56631014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610319814.0A Pending CN105855527A (en) | 2016-05-12 | 2016-05-12 | Continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105855527A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623826A (en) * | 2016-11-15 | 2017-05-10 | 宁夏铸源机械制造有限公司 | Self-vibration type continuous casting system |
| CN109909461A (en) * | 2019-04-10 | 2019-06-21 | 东北大学 | A kind of easily broken manganese block running gate system device and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1394716A (en) * | 1971-09-22 | 1975-05-21 | Union Carbide Corp | Casting apparatus |
| US3976120A (en) * | 1972-08-25 | 1976-08-24 | Demag Aktiengesellschaft | Casting arrangement for forming plate-shaped metal parts |
| JPH03254335A (en) * | 1990-03-01 | 1991-11-13 | Sumitomo Metal Mining Co Ltd | Continuous casting apparatus |
| JPH04305337A (en) * | 1991-04-03 | 1992-10-28 | Keiyo Burankingu Kogyo Kk | Method and device for continuous casting annular steel products |
| JPH10263749A (en) * | 1997-03-27 | 1998-10-06 | Kawasaki Steel Corp | Production of molded pig iron and apparatus therefor |
| CN203900456U (en) * | 2014-06-10 | 2014-10-29 | 上海中捷有色金属有限公司 | Tabletop aluminum plate deoxidizing agent automated continuous pouring and continuous casting granulator |
| CN203900414U (en) * | 2014-06-10 | 2014-10-29 | 上海中捷有色金属有限公司 | Automatic continuous casting block making machine for composite ferro-silicon-aluminum deoxidizing agents |
| CN204182893U (en) * | 2014-09-17 | 2015-03-04 | 交城义望铁合金有限责任公司 | Casting machine demoulding bobbing machine |
| CN205732939U (en) * | 2016-05-12 | 2016-11-30 | 宁夏铸源机械修配有限公司 | Continuous casting machine |
-
2016
- 2016-05-12 CN CN201610319814.0A patent/CN105855527A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1394716A (en) * | 1971-09-22 | 1975-05-21 | Union Carbide Corp | Casting apparatus |
| US3976120A (en) * | 1972-08-25 | 1976-08-24 | Demag Aktiengesellschaft | Casting arrangement for forming plate-shaped metal parts |
| JPH03254335A (en) * | 1990-03-01 | 1991-11-13 | Sumitomo Metal Mining Co Ltd | Continuous casting apparatus |
| JPH04305337A (en) * | 1991-04-03 | 1992-10-28 | Keiyo Burankingu Kogyo Kk | Method and device for continuous casting annular steel products |
| JPH10263749A (en) * | 1997-03-27 | 1998-10-06 | Kawasaki Steel Corp | Production of molded pig iron and apparatus therefor |
| CN203900456U (en) * | 2014-06-10 | 2014-10-29 | 上海中捷有色金属有限公司 | Tabletop aluminum plate deoxidizing agent automated continuous pouring and continuous casting granulator |
| CN203900414U (en) * | 2014-06-10 | 2014-10-29 | 上海中捷有色金属有限公司 | Automatic continuous casting block making machine for composite ferro-silicon-aluminum deoxidizing agents |
| CN204182893U (en) * | 2014-09-17 | 2015-03-04 | 交城义望铁合金有限责任公司 | Casting machine demoulding bobbing machine |
| CN205732939U (en) * | 2016-05-12 | 2016-11-30 | 宁夏铸源机械修配有限公司 | Continuous casting machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623826A (en) * | 2016-11-15 | 2017-05-10 | 宁夏铸源机械制造有限公司 | Self-vibration type continuous casting system |
| CN106623826B (en) * | 2016-11-15 | 2018-09-18 | 宁夏铸源机械制造有限公司 | Auto-oscillation type direct casting system |
| CN109909461A (en) * | 2019-04-10 | 2019-06-21 | 东北大学 | A kind of easily broken manganese block running gate system device and method |
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Application publication date: 20160817 |
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| RJ01 | Rejection of invention patent application after publication |