System for feeding portions of material to an injection molding machine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01F-011/00
G01G-013/00
출원번호
US-0386472
(2003-03-13)
발명자
/ 주소
Margalit, Eli
대리인 / 주소
Browdy and Neimark, P.L.L.C.
인용정보
피인용 횟수 :
4인용 특허 :
11
초록▼
A system for feeding portions of material to an injection molding machine including a feeding device that can be a screw feeder, an external container, a material hopper with inclined and parallel walls located inside the container, a load cell that is coupled to the material hopper and a controller
A system for feeding portions of material to an injection molding machine including a feeding device that can be a screw feeder, an external container, a material hopper with inclined and parallel walls located inside the container, a load cell that is coupled to the material hopper and a controller. The system dispenses accurate weight portions of material in a given time and for a given duration. The system controls the portion weight by weighing a number of dispensed portions using loss-in-weight of the hopper, divides the weight to the number of portion and, when needed, controls the spin of the screw feeder motor.
대표청구항▼
A system for feeding portions of material to an injection molding machine including a feeding device that can be a screw feeder, an external container, a material hopper with inclined and parallel walls located inside the container, a load cell that is coupled to the material hopper and a controller
A system for feeding portions of material to an injection molding machine including a feeding device that can be a screw feeder, an external container, a material hopper with inclined and parallel walls located inside the container, a load cell that is coupled to the material hopper and a controller. The system dispenses accurate weight portions of material in a given time and for a given duration. The system controls the portion weight by weighing a number of dispensed portions using loss-in-weight of the hopper, divides the weight to the number of portion and, when needed, controls the spin of the screw feeder motor. . The apparatus of claim 1, wherein the control system further comprises a pneumatic source that causes the fastener to be removed from the fastener storage device and transported through the delivery conduit. 3. The apparatus of claim 2 further comprising a proximity sensor disposed along the delivery conduit, wherein when the fastener is transported past the proximity sensor, the control system activates the pneumatic source to provide pressurized air to deliver the fastener. 4. The apparatus of claim 3, wherein the delivery conduit further comprises: a fixed fastener delivery tube disposed within the portable platform; and a flexible fastener delivery tube in communication with the fixed fastener delivery tube that extends to a work station, wherein the unloading mechanism delivers the fastener to the fixed fastener delivery tube and the fastener is transported through the fixed fastener delivery tube by gravity, and the fastener is transported through the flexible fastener delivery tube by the pneumatic source after the fastener is transported beyond the proximity sensor. 5. The apparatus of claim 4, wherein the fixed fastener delivery tube and the flexible fastener delivery tube are connected using a fitting comprising flexible prongs, wherein the fitting is secured to the fixed fastener delivery tube, and the flexible fastener delivery tube is inserted between the flexible prongs. 6. The apparatus of claim 5 further comprising an adhesive tape that is wrapped around the fitting to further secure and seal the connection between the fixed fastener delivery tube and the flexible fastener delivery tube. 7. The apparatus of claim 2, wherein the unloading mechanism further comprises: at least one extractor tool having an upper end and a lower end; at least one vacuum generator disposed at the upper end of the extractor tool; and an extractor catcher disposed at the lower end of the extractor tool, wherein when the control system activates the unloading mechanism, the extractor tool is positioned adjacent the fastener storage device and the pneumatic source activates the vacuum generator to cause a fastener to abut the extractor catcher for removal of the fastener from the fastener storage device. 8. The apparatus of claim 7, wherein the fastener storage device houses a plurality of fasteners and when the pneumatic source activates the vacuum generator, the plurality of fasteners are drawn up into the extractor catcher, and when a top fastener abuts the extractor catcher, the remaining fasteners are dropped back down into the fastener storage device. 9. The apparatus of claim 8, wherein the fastener storage device further comprises at least one fastener cassette that houses at least one fastener storage tube that houses the plurality of fasteners. 10. The apparatus of claim 9, wherein the fastener storage tube is in a coiled configuration. 11. The apparatus of claim 9 further comprising a fastener tube cartridge that houses the fastener storage tube, wherein the fastener tube cartridge is removable. 12. The apparatus of claim 9 further comprising an upper plate and a lower plate that house the fastener storage tube. 13. The apparatus of claim 12, wherein the upper plate and the lower plate are removable. 14. The apparatus of claim 9, wherein the fastener storage device further comprises at least one seal disposed adjacent the fastener storage tube such that when the extractor tool is positioned adjacent the fastener storage device, the extractor catcher abuts the seal, thereby providing a sealed connection between the fastener storage tube and the extractor catcher and preventing the fastener from swinging out of a vertical position. 15. The apparatus of claim 9, wherein the unloading mechanism further comprises an extractor shroud disposed around the extractor catcher. 16. The apparatus of claim 1, wherein the control system further comprises a positioning device that positions the unloading mechanism adjacent t he fastener storage device for removal of the fastener and adjacent the delivery conduit for delivery of the fastener. 17. The apparatus of claim 16, wherein the positioning device comprises a linear X-Y positioner. 18. The apparatus of claim 16, wherein the positioning device comprises a vertical axis positioner. 19. The apparatus of claim 1, wherein the control system further comprises a computing device having control software, wherein system parameters are stored in the computing device and are processed by the control software. 20. The apparatus of claim 19, wherein the control software further comprises a database that stores the system parameters. 21. The apparatus of claim 20, wherein the system parameters further comprise portable fastener delivery system parameters and fastener parameters. 22. The apparatus of claim 21, wherein the portable fastener delivery system parameters further comprise fastener cassette parameters. 23. The apparatus of claim 19, wherein the computing device further comprises a touch screen, wherein the request for a fastener is made using the touch screen. 24. The apparatus of claim 19, wherein the computing device is in communication with a computer screen that displays a digital image of an assembly. 25. The apparatus of claim 1, wherein the fastener storage device is removable. 26. The apparatus of claim 25 further comprising a fastener cassette cradle, wherein the fastener storage device is slidably disposed along the fastener cassette cradle. 27. The apparatus of claim 25, wherein the fastener storage device further comprises at least one handle to install, transport, and remove the fastener storage device. 28. The apparatus of claim 1, wherein the fastener storage device further comprises a smart cassette in communication with the control system, wherein the smart cassette maintains current information relating to the fasteners within the fastener storage device. 29. The apparatus of claim 1 further comprising a locating system that communicates proper positioning of the fastener storage device to the control system. 30. The apparatus of claim 29, wherein the locating system further comprises: a position switch disposed on the portable platform adjacent one end of the fastener storage device; and a pivoted latch disposed on the portable platform adjacent another end of the fastener storage device, wherein when the fastener storage device is properly positioned, the position switch is activated and the pivoted latch engages the fastener storage device. 31. The apparatus of claim 30 further comprising a second position switch disposed on the pivoted latch, wherein the second position switch communicates to the control system that the fastener storage device is locked in place. 32. The apparatus of claim 1, wherein the portable platform further comprises a mobile cart. 33. The apparatus of claim 1, wherein the delivery conduit further comprises a drop station, wherein the unloading mechanism transports the fastener from the fastener storage device to the drop station for transportation of the fastener through the delivery conduit. 34. The apparatus of claim 33, wherein the drop station further comprises at least one drop plate, the drop plate comprising at least one chute having a size that corresponds with a specific fastener configuration. 35. The apparatus of claim 34, wherein the chute is tapered. 36. The apparatus of claim 1, wherein the signal is transmitted using an input device. 37. The apparatus of claim 36, wherein the input device is a touch screen. 38. The apparatus of claim 36, wherein the input device is a microphone. 39. The apparatus of claim 36, wherein the input device is an auto identification system. 40. The apparatus of claim 36, wherein the input device is a grip length checker. 41. The apparatus of claim 36, wherein the input device transmits the signal using a hard-wired connection. 42. The apparatus of claim 36, wherein the input device transmits the signal u
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이 특허에 인용된 특허 (11)
Hyer Frank S. (Duxbury MA) Kintner Paul M. (Pembroke MA), Adaptation to major or sporadic disturbance error in weigh feeding apparatus.
Ricciardi Ronald J. (Woodcliff Lake NJ) Laidlaw John S. (Pompton Plains NJ), Materials feeding system with level sensing probe and method for automatic bulk density determination.
Timothy Allan Bell ; James Todd Delfunt ; Darryl W. Geyen ; Michael Thomas Hyzny ; Barton J. Firman ; Thomas Leroy Krieger, Protable device for accurately metering and delivering cohesive bulk solid powders.
Laidlaw John (Oakland NJ) Ricciardi Ronald J. (Woodcliff Lake NJ) Kahn Stephen D. (Brooklyn NY), With accelerometer for detecting extraneous disturbances weigh feeder.
Kweon, Hyug-Jin; Son, Hae-Joon; Kim, Wan-Soo, Liquid crystal dispensing apparatus having confirming function for remaining amount of liquid crystal and method for measuring the same.
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