CN105923360A - Speed-adjustable centrifugal supply device - Google Patents
Speed-adjustable centrifugal supply device Download PDFInfo
- Publication number
- CN105923360A CN105923360A CN201610469128.1A CN201610469128A CN105923360A CN 105923360 A CN105923360 A CN 105923360A CN 201610469128 A CN201610469128 A CN 201610469128A CN 105923360 A CN105923360 A CN 105923360A
- Authority
- CN
- China
- Prior art keywords
- gear
- guide
- support shaft
- frame
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
- B65G47/12—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles
- B65G47/14—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding
- B65G47/1407—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding the articles being fed from a container, e.g. a bowl
- B65G47/1442—Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding the articles being fed from a container, e.g. a bowl by means of movement of the bottom or a part of the wall of the container
- B65G47/1457—Rotating movement in the plane of the rotating part
- B65G47/1464—Rotating movement in the plane of the rotating part using the centrifugal effect to arrange or orientate the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/02—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of drums or rotating tables or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention provides a speed-adjustable centrifugal supply device, and belongs to the technical field of suppliers. The speed-adjustable centrifugal supply device comprises a disc, a guide plate and a guide material plate; the disc is rotationally arranged in a fixed hopper, and is coaxially mounted at the upper end of a support shaft; one end of the guide plate is fixed in the fixed hopper through a locking bracket; the lower end surface of the guide plate is bonded with the upper end surface of the disc; the guide material plate and the fixed hopper are tangentially arranged; one end of the guide material plate is inserted in the fixed hopper; a fourth gear and a fifth gear are coaxially arranged on the support shaft; the upper end of a gear shaft sleeve is rotationally connected with a rotating base; the gear shaft sleeve is arranged on a guide shaft in a up-down sliding manner; a second gear and a third gear are coaxially arranged on the gear shaft sleeve; a first gear is coaxially mounted on a gear shaft, and is always engaged with the second gear; and the gear shaft and a driving motor are coaxially connected. The speed-adjustable centrifugal supply device realizes adjustable supply rotating speed of the disc, facilitates realization of supply at different speeds, and is reasonable in structure and high in reliability.
Description
Technical field
The present invention relates to feeding machine technical field, be centrifuged feeding device particularly to a kind of adjustable speed.
Background technology
In automatization's processing, assembling line, can be automatically performed workpiece to processing or the device of make-up machinery supply also feeding, referred to as automatic charging device.During the processing, assembling of workpiece, needed for the operation such as the supply of workpiece, feeding, blanking and carrying, expense accounts for more than the 1/3 of full payment, and man-hours requirement accounts for more than the 2/3 of whole man-hour, and most of accident all occurs in these operations.Especially in the most mass-produced occasion, when require productivity ratio the highest and flexible working hours the most in short-term, during loading and unloading, one is repeated and heavy operation.So in order to improve productivity ratio, alleviate the labor intensity of operator, guarantee safety in production, it is achieved loading and unloading automatization is highly significant.Automatic charging device is generally made up of loader, interrupter, branch mechanism, He Lu mechanism, feed mechanism and conveyer etc..Feeding machine, also known as charger, refers in production procedure, workpiece can be given to the machine that goes in material receiving device from storage bin uniformly, regularly, continuously.The composition of feeding machine is generally: driving source, hopper, feeding element, align element, flush trimmer and row's discharging channel etc..Feeding machine can be divided into vibration type, swinging, straight reciprocating motion formula etc..Swinging feeding machine is a kind of common feed machinery, and swinging feeding device utilizes centrifugal force to be sent into by workpiece and guides material pipe, but the rotating speed of common swinging feeding device is nonadjustable, and the suitability to workpiece feed is poor.
Summary of the invention
It is an object of the invention to provide a kind of adjustable speed and be centrifuged feeding device, it is achieved the feed rotating speed of disk is adjustable, is advantageously implemented the feed of friction speed, rational in infrastructure, good reliability.
The technical solution adopted for the present invention to solve the technical problems is:
nullA kind of adjustable speed is centrifuged feeding device，It includes frame、Stationary hopper、Disk、Guide plate、Guide flitch、Locking support、Support shaft、Bearing support、Workpiece、First gear、Second gear、3rd gear、4th gear、5th gear、Gear shaft、Gear bush、The axis of guide、Drive cylinder、Revolving bed、Drive motor、L-type bearing，Described support shaft is rotatably provided in frame，Described stationary hopper is fixed on bearing support，Described disk is rotatably provided in stationary hopper，And disk concentric is arranged on the upper end of support shaft，Described workpiece is placed on disk，One end of described guide plate is fixed in stationary hopper by locking support，The lower surface of described guide plate and the upper surface laminating of disk，Described guiding flitch and the tangent setting of stationary hopper，One end is inserted in stationary hopper，Described 4th gear and the 5th gear concentric are arranged in support shaft，The described axis of guide is fixed in frame，And it is positioned at the side of support shaft，Upper end and the revolving bed of described gear bush are rotatably connected，Described gear bush also can slide up and down and be arranged on the axis of guide，Described second gear and the 3rd gear concentric are arranged on gear bush，The cylinder body of described driving cylinder is fixed on L-type bearing，Described L-type bearing is fixed in frame，The piston rod of described driving cylinder connects back to swivel base，Described first gear concentric is arranged on gear shaft，Described gear shaft is rotatably provided on frame and L-type bearing，Described first gear all the time with the second gear engagement，Described gear shaft and driving motor coaxle connect，Described driving motor is arranged in frame.
Further, it is provided with block bearing between described support shaft and frame.
Further, the end of described guide plate to distance is diameter of work 1.2 times of stationary hopper inwall.
Further, the diameter of described second gear is more than the diameter of the 3rd gear, and the diameter of described 4th gear is more than the diameter of the 5th gear.
Further, the inner side of described guiding flitch is provided with anti-collision rubber baffle plate.
Further, the upper surface of described disk is provided with one layer of felt.
The present invention is compared to the prior art, have the following advantages and effect: drive motor by the first gear, the second gear, the 3rd gear and the 4th gear driven support shaft smooth rotation, disk is with support shaft synchronous axial system, workpiece is under the influence of centrifugal force and under the guide effect of guide plate, workpiece slides outside stationary hopper, thus enter smoothly and guide flitch, it is achieved the continuous and stable feed of workpiece.When needs realize the quick feed of workpiece, drive the piston rod of cylinder by revolving bed driven gear axle sleeve upward sliding, second gear and the 3rd gear move upward, second gear and the 5th gear engage each other, 3rd gear and the engagement of the 4th gear separate, and now, the first gear passes through the second gear and the 5th gear driven support shaft quick rotation, disk is also with support shaft quick rotation, and workpiece realizes quick feed.It is provided with block bearing between support shaft and frame, decreases the abrasion between support shaft and frame, substantially prolongs the service life of support shaft.The upper surface of disk is provided with one layer of felt, beneficially workpiece and slides to the outside of stationary hopper under the effect of centrifugal force and guide plate, it is achieved continuous feeding.The end of guide plate to distance is diameter of work 1.2 times of stationary hopper inwall, beneficially workpiece enters guiding flitch smoothly.The inner side guiding flitch is provided with anti-collision rubber baffle plate, decreases workpiece and weares and teares in feeder process.The feed rotating speed that the present invention realizes disk is adjustable, is advantageously implemented the feed of friction speed, rational in infrastructure, good reliability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view of the present invention.
In figure: 1. frame, 2. stationary hopper, 3. disk, 4. guide plate, 5. guide flitch, 6. locking support, 7. support shaft, 8. bearing support, 9. workpiece, 10. the first gear, 11. second gears, 12. the 3rd gears, 13. the 4th gears, 14. the 5th gears, 15. gear shafts, 16. gear bush, 17. axis of guides, 18. drive cylinder, 19. revolving beds, 20. drive motor, 21.L type bearing, 22. block bearings.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following example are explanation of the invention and the invention is not limited in following example.
As depicted in figs. 1 and 2, a kind of adjustable speed is centrifuged feeding device, it includes frame 1, stationary hopper 2, disk 3, guide plate 4, guide flitch 5, locking support 6, support shaft 7, bearing support 8, workpiece 9, first gear 10, second gear 11, 3rd gear 12, 4th gear 13, 5th gear 14, gear shaft 15, gear bush 16, the axis of guide 17, drive cylinder 18, revolving bed 19, drive motor 20, L-type bearing 21, described support shaft 7 is rotatably provided in frame 1, it is provided with block bearing 22 between described support shaft 7 and frame 1, decrease the abrasion between support shaft 7 and frame 1, substantially prolongs the service life of support shaft 7.Described stationary hopper 2 is fixed on bearing support 8, described disk 3 is rotatably provided in stationary hopper 2, and disk 3 concentric is arranged on the upper end of support shaft 7, described workpiece 9 is placed on disk 3, the upper surface of described disk 3 is provided with one layer of felt, workpiece 9 is conducive to slide to the outside of stationary hopper 2 under the effect of centrifugal force and guide plate 4, it is achieved continuous feeding.One end of described guide plate 4 is fixed in stationary hopper 2 by locking support 6, the lower surface of described guide plate 4 and the upper surface laminating of disk 3, the end of described guide plate 4 to 1.2 times that distance is workpiece 9 diameter of stationary hopper 2 inwall, beneficially workpiece 9 enter guiding flitch 5 smoothly.Described guiding flitch 5 and the tangent setting of stationary hopper 2, in one end insertion stationary hopper 2, the inner side of described guiding flitch 5 is provided with anti-collision rubber baffle plate, decreases workpiece 9 and weares and teares in feeder process.Described 4th gear 13 and the 5th gear 14 concentric arrange in support shaft 7, the described axis of guide 17 is fixed in frame 1, and it is positioned at the side of support shaft 7, upper end and the revolving bed 19 of described gear bush 16 are rotatably connected, described gear bush 16 also can slide up and down and be arranged on the axis of guide 17, and described second gear 11 and the 3rd gear 12 concentric are arranged on gear bush 16.The cylinder body of described driving cylinder 18 is fixed on L-type bearing 21, described L-type bearing 21 is fixed in frame 1, the piston rod of described driving cylinder 18 connects back to transposase 11 9, described first gear 10 concentric is arranged on gear shaft 15, described gear shaft 15 is rotatably provided on frame 1 and L-type bearing 21, described first gear 10 all the time with the second gear 11 engages, and described gear shaft 15 and driving motor 20 are coaxially connected, and described driving motor 20 is arranged in frame 1.The diameter of described second gear 11 is more than the diameter of the 3rd gear 12, and the diameter of described 4th gear 13 is more than the diameter of the 5th gear 14.
Pass through technique scheme, when one adjustable speed of the present invention is centrifuged feeding device use, motor 20 is driven to drive support shaft 7 smooth rotation by first gear the 10, second gear the 11, the 3rd gear 12 and the 4th gear 13, disk 3 is with support shaft 7 synchronous axial system, workpiece 9 is under the influence of centrifugal force and under the guide effect of guide plate 4, workpiece 9 slides outside stationary hopper 2, thus enters smoothly and guide flitch 5, it is achieved the continuous and stable feed of workpiece 9.When needs realize workpiece 9 quick feed, drive the piston rod of cylinder 18 by revolving bed 19 driven gear axle sleeve 16 upward sliding, second gear 11 and the 3rd gear 12 move upward, second gear 11 and the 5th gear 14 engage each other, 3rd gear 12 and the engagement of the 4th gear 13 separate, and now, the first gear 10 drives support shaft 7 quick rotation by the second gear 11 and the 5th gear 14, disk 3 is also with support shaft 7 quick rotation, and workpiece 9 realizes quick feed.The feed rotating speed that the present invention realizes disk 3 is adjustable, is advantageously implemented the feed of friction speed, rational in infrastructure, good reliability.
Above content described in this specification is only illustration made for the present invention.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by those skilled in the art; without departing from the content of description of the invention or surmount scope defined in the claims, protection scope of the present invention all should be belonged to.
Claims (6)
- null1. an adjustable speed is centrifuged feeding device，It is characterized in that: it includes frame、Stationary hopper、Disk、Guide plate、Guide flitch、Locking support、Support shaft、Bearing support、Workpiece、First gear、Second gear、3rd gear、4th gear、5th gear、Gear shaft、Gear bush、The axis of guide、Drive cylinder、Revolving bed、Drive motor、L-type bearing，Described support shaft is rotatably provided in frame，Described stationary hopper is fixed on bearing support，Described disk is rotatably provided in stationary hopper，And disk concentric is arranged on the upper end of support shaft，Described workpiece is placed on disk，One end of described guide plate is fixed in stationary hopper by locking support，The lower surface of described guide plate and the upper surface laminating of disk，Described guiding flitch and the tangent setting of stationary hopper，One end is inserted in stationary hopper，Described 4th gear and the 5th gear concentric are arranged in support shaft，The described axis of guide is fixed in frame，And it is positioned at the side of support shaft，Upper end and the revolving bed of described gear bush are rotatably connected，Described gear bush also can slide up and down and be arranged on the axis of guide，Described second gear and the 3rd gear concentric are arranged on gear bush，The cylinder body of described driving cylinder is fixed on L-type bearing，Described L-type bearing is fixed in frame，The piston rod of described driving cylinder connects back to swivel base，Described first gear concentric is arranged on gear shaft，Described gear shaft is rotatably provided on frame and L-type bearing，Described first gear all the time with the second gear engagement，Described gear shaft and driving motor coaxle connect，Described driving motor is arranged in frame.
- A kind of adjustable speed the most according to claim 1 is centrifuged feeding device, it is characterised in that: it is provided with block bearing between described support shaft and frame.
- A kind of adjustable speed the most according to claim 1 is centrifuged feeding device, it is characterised in that: distance is diameter of work 1.2 times of the end of described guide plate to stationary hopper inwall.
- A kind of adjustable speed the most according to claim 1 is centrifuged feeding device, it is characterised in that: the diameter of described second gear is more than the diameter of the 3rd gear, and the diameter of described 4th gear is more than the diameter of the 5th gear.
- A kind of adjustable speed the most according to claim 1 is centrifuged feeding device, it is characterised in that: the inner side of described guiding flitch is provided with anti-collision rubber baffle plate.
- A kind of adjustable speed the most according to claim 1 is centrifuged feeding device, it is characterised in that: the upper surface of described disk is provided with one layer of felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610469128.1A CN105923360A (en) | 2016-06-25 | 2016-06-25 | Speed-adjustable centrifugal supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610469128.1A CN105923360A (en) | 2016-06-25 | 2016-06-25 | Speed-adjustable centrifugal supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105923360A true CN105923360A (en) | 2016-09-07 |
Family
ID=56828242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610469128.1A Pending CN105923360A (en) | 2016-06-25 | 2016-06-25 | Speed-adjustable centrifugal supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105923360A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107458847A (en) * | 2017-07-26 | 2017-12-12 | 江苏密斯欧智能科技有限公司 | One kind is adjustable to rotate feed device |
| CN109046800A (en) * | 2018-07-09 | 2018-12-21 | 盐城康鼎机械有限公司 | A kind of adjustable rotating centrifugal screening installation |
| CN112293863A (en) * | 2020-11-04 | 2021-02-02 | 湖南嘉泰鞋业有限公司 | Shoe processing is with operation panel that has a garbage collection function |
| CN113955455A (en) * | 2021-11-16 | 2022-01-21 | 昆山博创智能制造有限公司 | Eccentric rotary table |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2518134A1 (en) * | 1975-04-24 | 1976-11-04 | Hoppmann Corp | Sorting method using rotating inner plate - with outer disc turning at same speed and fitted with adjustable ramp |
| CN203357126U (en) * | 2013-07-30 | 2013-12-25 | 宁波宁江粉末冶金有限公司 | Turntable feeding device |
| CN203529306U (en) * | 2013-11-12 | 2014-04-09 | 上海昭程整流子科技有限公司 | Automatic rotation disc feeding machine |
| CN203819998U (en) * | 2014-05-26 | 2014-09-10 | 周贵英 | Automatic feeding device for shaping lathe |
| CN204377460U (en) * | 2014-12-03 | 2015-06-10 | 桐乡市天鑫包装有限公司 | A kind of sheller unit |
| CN104723056A (en) * | 2015-03-28 | 2015-06-24 | 上海昭程整流子科技有限公司 | Rotor supply unit |
| CN204777257U (en) * | 2015-07-09 | 2015-11-18 | 泛科轴承集团有限公司 | Bearing automatic feeding |
| CN205892004U (en) * | 2016-06-25 | 2017-01-18 | 周梅 | Adjustable speed centrifugation feedway |
-
2016
- 2016-06-25 CN CN201610469128.1A patent/CN105923360A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2518134A1 (en) * | 1975-04-24 | 1976-11-04 | Hoppmann Corp | Sorting method using rotating inner plate - with outer disc turning at same speed and fitted with adjustable ramp |
| CN203357126U (en) * | 2013-07-30 | 2013-12-25 | 宁波宁江粉末冶金有限公司 | Turntable feeding device |
| CN203529306U (en) * | 2013-11-12 | 2014-04-09 | 上海昭程整流子科技有限公司 | Automatic rotation disc feeding machine |
| CN203819998U (en) * | 2014-05-26 | 2014-09-10 | 周贵英 | Automatic feeding device for shaping lathe |
| CN204377460U (en) * | 2014-12-03 | 2015-06-10 | 桐乡市天鑫包装有限公司 | A kind of sheller unit |
| CN104723056A (en) * | 2015-03-28 | 2015-06-24 | 上海昭程整流子科技有限公司 | Rotor supply unit |
| CN204777257U (en) * | 2015-07-09 | 2015-11-18 | 泛科轴承集团有限公司 | Bearing automatic feeding |
| CN205892004U (en) * | 2016-06-25 | 2017-01-18 | 周梅 | Adjustable speed centrifugation feedway |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107458847A (en) * | 2017-07-26 | 2017-12-12 | 江苏密斯欧智能科技有限公司 | One kind is adjustable to rotate feed device |
| CN109046800A (en) * | 2018-07-09 | 2018-12-21 | 盐城康鼎机械有限公司 | A kind of adjustable rotating centrifugal screening installation |
| CN112293863A (en) * | 2020-11-04 | 2021-02-02 | 湖南嘉泰鞋业有限公司 | Shoe processing is with operation panel that has a garbage collection function |
| CN113955455A (en) * | 2021-11-16 | 2022-01-21 | 昆山博创智能制造有限公司 | Eccentric rotary table |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105923360A (en) | Speed-adjustable centrifugal supply device | |
| CN105905575A (en) | Screw supply device | |
| CN101347916B (en) | Workstation structure for improved vertical grinder | |
| CN210968289U (en) | Bar material buffing machine | |
| CN105858180A (en) | Workpiece feeding device | |
| CN201500926U (en) | Polisher for automatic reverser | |
| CN108436703A (en) | A kind of vertical composite processing machine tool based on spherical base surface of tapered roller | |
| CN118438287B (en) | Conical bearing roller ball basal plane grinding machine | |
| CN214722366U (en) | Numerical control pipeline cutting bevelling machine | |
| CN205820215U (en) | A kind of metal end feeding device | |
| CN210818997U (en) | Feeding device for bar grinding | |
| CN205892004U (en) | Adjustable speed centrifugation feedway | |
| CN205891936U (en) | Rotation feedway | |
| CN108436598A (en) | A kind of hub bearing Superfinishing machine device | |
| CN86105585A (en) | Rail-mounted drum grinder and automatic system therefor | |
| CN107009264A (en) | The feeding and clamping mechanism of cylindrical magnetic core | |
| CN106041614A (en) | Centrifugal feeding device | |
| CN105905587A (en) | Cylindrical workpiece feeding device | |
| CN215999775U (en) | Feeding structure for centerless grinding machine | |
| CN205888705U (en) | Centrifugal feedway | |
| CN105947554A (en) | Rotary feeding device | |
| CN101456147A (en) | Grinding device for circular guide rail of vertical lathe | |
| CN105905540A (en) | Metal end cap supply device | |
| CN210732043U (en) | Supplementary bar grinding material conveyor | |
| CN210818947U (en) | Buffing machine with automatic unloading function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |
|
| RJ01 | Rejection of invention patent application after publication |