IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0841322
(2001-04-24)
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발명자
/ 주소 |
- Kazmer, David
- Moss, Mark D.
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출원인 / 주소 |
- Synventive Molding Solutions, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
11 인용 특허 :
46 |
초록
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In an injection molding machine having first and second nozzles for delivering melt material from a common manifold to one or more mold cavities, apparatus for controlling delivery of the melt material from the nozzles to the one or more mold cavities, each nozzle having an exit aperture communicati
In an injection molding machine having first and second nozzles for delivering melt material from a common manifold to one or more mold cavities, apparatus for controlling delivery of the melt material from the nozzles to the one or more mold cavities, each nozzle having an exit aperture communicating with a gate of a cavity of a mold and being associated with an actuator interconnected to a melt flow controller, the apparatus comprising a sensor for sensing a selected condition of the melt material through at least one of the nozzles; an actuator controller interconnected to each actuator, each actuator controller comprising a computer interconnected to a sensor for receiving a signal representative of the selected condition sensed by the sensor, the computer including an algorithm utilizing a value corresponding to a signal received from the sensor as a variable for controlling operation of an actuator for the at least one nozzle; wherein the melt flow controller controls the rate of flow of the melt material at different rates according to the algorithm at a position spaced upstream of the gate.
대표청구항
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In an injection molding machine having first and second nozzles for delivering melt material from a common manifold to one or more mold cavities, apparatus for controlling delivery of the melt material from the nozzles to the one or more mold cavities, each nozzle having an exit aperture communicati
In an injection molding machine having first and second nozzles for delivering melt material from a common manifold to one or more mold cavities, apparatus for controlling delivery of the melt material from the nozzles to the one or more mold cavities, each nozzle having an exit aperture communicating with a gate of a cavity of a mold and being associated with an actuator interconnected to a melt flow controller, the apparatus comprising a sensor for sensing a selected condition of the melt material through at least one of the nozzles; an actuator controller interconnected to each actuator, each actuator controller comprising a computer interconnected to a sensor for receiving a signal representative of the selected condition sensed by the sensor, the computer including an algorithm utilizing a value corresponding to a signal received from the sensor as a variable for controlling operation of an actuator for the at least one nozzle; wherein the melt flow controller controls the rate of flow of the melt material at different rates according to the algorithm at a position spaced upstream of the gate. ystem of claim 1, wherein each of said plurality of carriages is capable of substantially simultaneously discharging side-by-side articles toward opposite sides of said conveying path. 4. The sortation system of claim 1, wherein e each of said carriages is capable of receiving an article on one side of said carriage without moving an article already positioned on said carriage. 5. The sortation system of claim 1, wherein articles are loaded onto said plurality of carriages in a manner that reduces gridlock of articles on said plurality of carriages. 6. The sortation system of claim 1, wherein each of said plurality of carriages comprises at least two side-by-side carrier surfaces. 7. The sortation system of claim 6, wherein said at least two side-by-side carrier surfaces comprises at least two side-by-side carrier belts. 8. The sortation system of claim 7, wherein each of said at least two side-by-side carrier surfaces is at least occasionally independently driven from the other of said at least two side-by-side carrier surfaces. 9. The sortation system of claim 1 including a control which is operable to determine a destination of an article at said at least one induction station and an availability status of said plurality of carriages, said control being operable to load articles onto said plurality of carriages in response to said destination and said availability status. 10. The sortation system of claim 9, wherein said control is operable to determine an induction sequence of articles and to induct artioles onto said plurality of carriages in said induction sequence to limit gridlock of articles on said plurality of carriages. 11. A sortation system comprising: a plurality of carriages which are coupled together and continuously movable along an endless conveying path, said plurality of carriages passing at least one induction station and a plurality of discharge stations, each of said plurality of carriages being adapted to carry side-by-side articles, each of said plurality of carriages being capable of transferring an article from one side of said carriage to the other side of said carriage, each of said plurality of carriages being capable of substantially simultaneously discharging side-by-side articles to respective discharge stations at opposite sides of said conveying path. 12. The sortation system of claim 11, wherein each of said plurality of carriages is selectively operable to (a) receive an article on at least one side of said carriage, (b) transfer an article from one side of said carriage to the other side of said carriage, and (c) discharge an article from at least one side of said carriage. 13. The sortation system of claim 11, wherein each of said plurality of carriages is capable of receiving an article on one side of said carriage when another article is already positioned on the other side of said carriage. 14. The sortation system of claim 11, wherein each of said plurality of carriages is capable of receiving an article on one side of said carriage without moving an article already positioned on said carriage. 15. The sortation system of claim 11, wherein articles are loaded onto said plurality of carriages in a manner that reduces gridlock of articles on said plurality of carriages. 16. The sortation system of claim 11, wherein each of said plurality of carriages comprises at least two side-by-side carrier surfaces. 17. The sortation system of claim 16, wherein said at least two side-by-side carrier surfaces comprises at least two side-by-side carrier belts. 18. The sortation system of claim 17, wherein each of said at least two side-by-side carrier surfaces is at least occasionally independently driven from the other of said at least two side-by-side carrier surfaces. 19. The sortation system of claim 11, including a control which is operable to determine a destination of an article at said at least one induction station and an availability status of said plurality of carriages, said control being operable to load articles onto said plurality of carriages in response to said destination and said availability status. 20. The sortation system of claim 19, wherein said control is operable to determine an induction sequence of articles and to induct articles onto said plurality of carriages in said induction sequence to limit gridlock of articles on said plurality of carriages. 21. A sortation system comprising: a plurality of carriages which are continuously movable along an endless conveying path, said plurality of carriages passing at least one induction station and at least one discharge station, each of said plurality of carriages being adapted to carry side-by-side articles, each of said plurality of carriages being capable of transferring an article from one side of said carriage to the other side of said carriage, each of said carriages being capable of receiving an article on one side of said carriage without moving an article already positioned on said carriage. 22. The sortation system of claim 21, wherein each of said plurality of carriages is selectively operable to (a) receive an article on at least one side of said carriage, (b) transfer an article from one side of said carriage to the other side of said carriage, and (c) discharge an article from at least one side of said carriage. 23. The sortation system of claim 21, wherein each of said plurality of carriages is capable of substantially simultaneously discharging side-by-side articles toward opposite sides of said conveying path. 24. The sortation system of claim 23, wherein articles are loaded onto said plurality of carriages in a manner that reduces gridlock of articles on said plurality of carriages. 25. The sortation system of claim 23, wherein each of said plurality of carriages comprises at least two side-by-side carrier surfaces. 26. The sortation system of claim 25, wherein said at least two side-by-side carrier surfaces comprises at least two side-by-side carrier belts. 27. The sortation system of claim 26, wherein each of said at least two side-by-side carrier surfaces is at least occasionally independently driven from the other of said at least two side-by-side carrier surfaces. 28. The sortation system of claim 21 including a control which is operable to determine a destination of an article at said at least one induction station and an availability status of said plurality of carriages, said control being operable to load articles onto said plurality of carriages in response to said destination and said availability status. 29. The sortation system of claim 28, wherein said control is operable to determine an induction sequence of articles and to induct articles onto said plurality of carriages in said induction sequence to limit gridlock of articles on said plurality of carriages. rotor in an opposite direction from the distributor. 5. Apparatus according to claim 3, wherein the drive mechanism operable to rotate the feeding rotor in the same direction as the distributor and at different speed relative thereto. 6. Apparatus according to claim 1, wherein the slinger and the feeding rotor are interconnected to rotate in the same direction. 7. Apparatus according to claim 1, wherein the drive mechanism is operable to rotate the feeding rotor relative to the distributor. 8. Apparatus according to claim 1, wherein the drive mechanism operable to rotate the feeding rotor in the same direction as the distributor and at different speed relative thereto. 9. Apparatus according to claim 1, wherein the driving mechanism is connected to one of the feeding rotor and the slinger which, in turn, transmits rotation to the other of the feeding rotor and the slinger. 10. Apparatus according to claim 9, wherein the drive mechanism includes a drive shaft, the slinger including first and second axially spaced ends, the first end connected to the drive shaft, and the second end connected to the feeding motor. 11. Apparatus according to claim 1, wherein the distributor includes a collection groove opening toward, and extending around, the feeding rotor for receiving the liquid from the feeding rotor. 12. Apparatus according to claim 11, wherein the distributor includes uniformly circumferentially spaced openings communicating with the collection groove, the openings directed in radial directions and disposed radially outwardly of the groove. 13. Apparatus according to claim 12, wherein the distributor includes distribution tubes spaced circumferentially apart for discharging the liquid toward the slinger, the tubes communicating with respective ones of the openings. 14. Apparatus according to claim 1, wherein the distributor includes distribution tubes spaced circumferentially apart for discharging the liquid toward the slinger. 15. Apparatus according to claim 14, wherein the tubes extend parallel to the axis. 16. Apparatus according to claim 14, wherein the slinger comprises a plurality of slinger rotors distributed along the axis, each slinger rotor including an annular row of the cusps, each tube including an outlet, the outlets disposed at levels corresponding to respective levels of the rows of cusps on the slinger. 17. Apparatus according to claim 16, wherein the tubes extend downwardly from the distributor. 18. Apparatus according to claim 1, wherein the slinger comprises a plurality of slinger rotors distributed along the axis, each slinger rotor including an annular row of the cusps, each slinger rotor including a radially inner portion extending in an upward direction enclosed radially outwardly, and a radially outer portion extending in a radial direction from an upper end of the respective inner portion. 19. Apparatus according to claim 1 wherein the drive mechanism is operable to rotate the feeding rotor in an opposite direction from the distributor. 20. Apparatus for forming droplets from a liquid, comprising: a slinger rotatable about an axis and having droplet-forming cusps disposed on an outer periphery thereof, the cusps arranged in at least two annular rows spaced along the axis; a distributor rotatable about the axis and disposed radially inside of at least a portion of the slinger for supplying liquid to the slinger by centrifugal force; a feeder including a feeding rotor rotatable about the axis for supplying the liquid to the distributor by centrifugal force, at least a portion of the feeding motor being disposed radially inside of the distributor; a drive mechanism for driving the feeding rotor, the distributor, and the slinger, wherein the feeding rotor and the slinger are rotated relative to the distributor; the feeding rotor being rigidly coupled to the slinger for rotation therewith at the same velocity and in the same direction; the distributor including an annular groove opening toward t
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