System and method for control of fluid dispense pump
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A62C-031/00
B05B-007/04
B05B-017/04
A01G-027/00
출원번호
US-0989043
(2004-11-15)
발명자
/ 주소
Fugere,Jeffrey P.
출원인 / 주소
DL Technology, LLC
대리인 / 주소
Mills &
인용정보
피인용 횟수 :
36인용 특허 :
110
초록▼
In a fluid pump and cartridge assembly, a cartridge includes a material inlet port, a material outlet port, and a feed screw. The feed screw delivers fluid to be dispensed from the fluid inlet to the outlet port. The fluid inlet is preferably elongated in a direction along a longitudinal axis of th
In a fluid pump and cartridge assembly, a cartridge includes a material inlet port, a material outlet port, and a feed screw. The feed screw delivers fluid to be dispensed from the fluid inlet to the outlet port. The fluid inlet is preferably elongated in a direction along a longitudinal axis of the feed screw to enhance consistency in material flow through the cartridge. The feed screw is preferably driven by a closed-loop servo motor to achieve high-performance dispensing resolution. The assembly is preferably compatible with fixed-z and floating-z cartridges. A optional vented dispense tip, in combination with the fluid pump, allows for repeatable deposit of fillet patterns while maintaining optimal consistency. A dispense controller allows for reverse-compatibility such that the fluid pump of the present invention can be mounted to, and controlled by, conventional pump position controllers.
대표청구항▼
I claim: 1. A method for controlling a fluid dispensing operation comprising: controlling the position of a fluid dispensing pump relative to a substrate at a position controller, the fluid dispensing pump including a feed screw driven by a motor having indexed rotational positions, the position co
I claim: 1. A method for controlling a fluid dispensing operation comprising: controlling the position of a fluid dispensing pump relative to a substrate at a position controller, the fluid dispensing pump including a feed screw driven by a motor having indexed rotational positions, the position controller generating a time-duration-based pump control signal; and controlling a dispensing operation of the pump at a dispensing controller that receives the time-duration-based pump control signal, and in response, generates an index signal for the motor for controlling rotation in the motor based on the indexed rotational positions. 2. The method of claim 1 wherein the motor comprises a closed-loop servo-motor. 3. The method of claim 1 further comprising providing a transmission coupled between the servo-motor and feed screw for gearing the feed screw relative to the servo-motor. 4. The method of claim 1 further comprising controlling the position of the pump relative to the substrate along three normal Cartesian coordinate axes (x, y, z). 5. The method of claim 1 wherein initiation of the time-duration-based control signal indicates that the pump is in position for a dispensing operation. 6. The method of claim 1 wherein the time-duration-based control signal comprises a rectangular waveform having a rising edge and a falling edge. 7. The method of claim 6 wherein the rising edge precedes the falling edge. 8. The method of claim 6 wherein the falling edge precedes the rising edge. 9. The method of claim 1 further comprising the dispensing controller, upon completion of the dispensing operation, generating a completion signal for indicating to the position controller that the dispensing operation is completed. 10. The method of claim 1 wherein the index signal comprises a count signal indicating the number of indexed rotational positions to be traversed by the motor. 11. The method of claim 1 wherein the index signal comprises a velocity signal indicating the rotational velocity of the motor. 12. The method of claim 1 wherein the index signal comprises an acceleration signal indicating the rotational acceleration of the motor. 13. The method of claim 1 wherein the position controller places the pump in a dormant state during the dispensing operation. 14. The method of claim 13 wherein the dispensing operation dispenses a dot. 15. The method of claim 1 wherein the position controller places the pump in motion during the dispensing operation. 16. The method of claim 15 wherein the dispensing operation dispenses a line. 17. The method of claim 16 wherein the index signal causes the motor to rotate at a fixed angular rate during the dispensing of a line. 18. A dispensing controller for a fluid dispensing pump including a feed screw driven by a motor having indexed rotational positions, the dispensing controller for controlling a dispensing operation of a pump, the dispensing controller receiving a pump-control signal comprising a time-duration-based signal, and in response, generating an index signal for the motor for controlling rotation in the motor based on the indexed rotational positions, the pump control signal received from a position controller that controls the position of the pump relative to a substrate. 19. The dispensing controller of claim 18 wherein initiation of the time-duration-based control signal indicates that the pump is in position for a dispensing operation. 20. The dispensing controller of claim 18 wherein the time-duration-based control signal comprises a rectangular waveform having a rising edge and a falling edge. 21. The dispensing controller of claim 20 wherein the rising edge precedes the falling edge. 22. The dispensing controller of claim 20 wherein the falling edge precedes the rising edge. 23. The dispensing controller of claim 18 wherein the dispensing controller, upon completion of the dispensing operation, generates a completion signal for indicating to the position controller that the dispensing operation is completed. 24. The dispensing controller of claim 18 wherein the index signal comprises a count signal indicating the number of indexed rotational positions to be traversed by the motor. 25. The dispensing controller of claim 18 wherein the index signal comprises a velocity signal indicating the rotational velocity of the motor. 26. The dispensing controller of claim 18 wherein the index signal comprises an acceleration signal indicating the rotational acceleration of the motor. 27. The dispensing controller of claim 18 wherein the dispensing controller further comprises: an user interface for programming the dispensing controller with a dispensing operation program; and a processor for processing the dispensing operation program. 28. The dispensing controller of claim 19 wherein the dispensing controller comprises: an interface unit for receiving the pump control signal and for converting the pump control signal to an intermediate signal; and a pump motion control unit for generating the index signal in response to the intermediate signal. 29. The dispensing controller of claim 28 wherein the user interface comprises a touch screen interface. 30. The dispensing controller of claim 28 wherein the user interface comprises a computer interface. 31. A system comprising: a fluid dispensing pump including a feed screw driven by a pump dispensing motor having indexed rotational positions; a position controller for controlling the position of the pump relative to a substrate, the position controller generating a time-duration-based pump control signal; and a dispensing controller for controlling a dispensing operation of the pump, the dispensing controller receiving the time-duration-based pump control signal, and in response to the time-duration-based pump control signal generating a pump index signal for the pump dispensing motor for controlling rotation in the pump dispensing motor and the corresponding feed screw of the fluid dispensing pump based on the indexed rotational positions. 32. The system of claim 31 wherein the feed screw includes a helical cavity defined between a major diameter and a minor diameter of a thread of the feed screw, and wherein the fluid dispensing pump further includes a cartridge having a cavity in communication with the feed screw for introduction of dispensing fluids into the helical cavity. 33. The method of claim 32 wherein the motor further includes a positional encoder. 34. The system of claim 32 wherein the cartridge comprises: a body having a bore; a fluid inlet at a proximal end of the bore; a fluid outlet at a distal end of the bore; and a feed screw for delivering fluid from the fluid inlet to the fluid outlet, the feed screw having a longitudinal axis, the fluid inlet being elongated in a direction along the longitudinal axis of the feed screw. 35. The system of claim 31 wherein the motor comprises a closed-loop servo-motor. 36. The system of claim 35 further comprising a transmission coupled between the servo-motor and feed screw for gearing the feed screw relative to the servo-motor. 37. The system of claim 35 wherein the motor further includes a positional encoder. 38. The system of claim 31 wherein the position controller controls the position of the pump relative to the substrate along three normal Cartesian coordinate axes (x, y, z). 39. The system of claim 31 wherein initiation of the time-duration-based control signal indicates that the pump is in position for a dispensing operation. 40. The system of claim 31 wherein the time-duration-based control signal comprises a rectangular waveform having a rising edge and a falling edge. 41. The system of claim 40 wherein the rising edge precedes the falling edge. 42. The system of claim 40 wherein the falling edge precedes the rising edge. 43. The system of claim 31 wherein the dispensing controller, upon completion of the dispensing operation, generates a completion signal for indicating to the position controller that the dispensing operation is completed. 44. The system of claim 31 wherein the pump index signal comprises a count signal indicating the number of indexed rotational positions to be traversed by the motor. 45. The system of claim 31 wherein the pump index signal comprises a velocity signal indicating the rotational velocity of the motor. 46. The system of claim 31 wherein the pump index signal comprises an acceleration signal indicating the rotational acceleration of the motor. 47. The system of claim 31 wherein the position controller fixes the position of the pump during the dispensing operation. 48. The system of claim 47 wherein the dispensing operation dispenses a dot. 49. The system of claim 31 wherein the position controller places the pump in motion during the dispensing operation. 50. The system of claim 49 wherein the dispensing operation dispenses a line. 51. The system of claim 50 wherein the index signal causes the motor to rotate at a fixed angular rate during the dispensing of a line. 52. The system of claim 31 wherein the dispensing controller comprises: an interface unit for receiving the pump control signal and for converting the pump control signal to an intermediate signal; and a pump motion control unit for generating the index signal in response to the intermediate signal. 53. The system of claim 31 wherein the dispensing controller further comprises: an user interface for programming the dispensing controller with a dispensing operation program; and a processor for processing the dispensing operation program. 54. The system of claim 53 wherein the user interface comprises a touch screen interface. 55. The system of claim 53 wherein the user interface comprises a computer interface. 56. The system of claim 31 wherein the time-duration-based pump control signal has an active state and an inactive state, and wherein the dispensing controller generates the pump index signal in response to a time duration of one of the active state and inactive state of the time-duration-based pump control signal. 57. The system of claim 31 wherein the dispensing controller controls the dispensing operation of the pump under direction of the position controller.
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이 특허에 인용된 특허 (110)
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Kolcun Joseph F. (Binghamton NY) Janisiewicz Stanley W. (Endwell NY) Gieskes Koenraad A. (Binghamton NY), Dispenser and method for dispensing viscous fluids.
Howseman ; Jr. William E. (150 E. Los Angeles Ave. ; #205 Moorpark CA 93021) Engel Harold J. (18932 Olympia St. Northridge CA 91326), Fluid agitator and pump assembly.
Cavallaro William A. ; Bibeault Steven P. ; Gordon Jules, Method and apparatus for measuring the size of drops of a viscous material dispensed from a dispensing system.
Cavallaro William A. ; Fugere Jeffrey P. ; O'Neil Todd Edwin ; Kaplan John ; Franklin Stephen M., Method and apparatus for measuring the size of drops of a viscous material dispensed from a dispensing system.
William A. Cavallaro ; Jeffrey P. Fugere ; Todd Edwin O'Neil ; John Kaplan ; Stephen M. Franklin, Method and apparatus for measuring the size of drops of a viscous material dispensed from a dispensing system.
Prentice Thomas C. ; Prescott Brian P. ; Purcell Thomas ; Helm Stephen S. ; Martin Donald J. ; Brown Kevin, Multiple head dispensing system and method.
Prentice Thomas C. ; Prescott Brian P. ; Purcell Thomas ; Helm Stephen S. ; Martin Donald J. ; Brown Kevin ; Donnelly James P., Multiple head dispensing system and method.
Baran Mark E. (Neenah WI) Phibbs David P. (Appleton WI) Couch Vern W. (Appleton WI) Michalec George W. (Pleasantville NY), Positive displacement screw pump having pressure feedback control.
Carpenter, M. Scott; Furner, Paul E.; Gasper, Thomas P.; Kubicek, Chris A.; Lemon, Leon M.; Madsen, Brent D.; Michaels, Kenneth W.; Nelson, Cory J.; Short, Michael E.; Sipinski, Gene; Westphal, Nathan R., Compact spray device.
Carpenter, M. Scott; Furner, Paul E.; Gasper, Thomas P.; Kubicek, Chris A.; Lemon, Leon M.; Madsen, Brent D.; Michaels, Kenneth W.; Nelson, Cory J.; Short, Michael E.; Sipinski, Gene; Westphal, Nathan R., Compact spray device.
Carpenter, M. Scott; Furner, Paul E.; Gasper, Thomas P.; Kubicek, Chris A.; Lemon, Leon M.; Madsen, Brent D.; Michaels, Kenneth W.; Nelson, Cory J.; Short, Michael E.; Sipinski, Gene; Westphal, Nathan R., Compact spray device.
Carpenter, M. Scott; Furner, Paul E.; Gasper, Thomas P.; Kubicek, Chris A.; Lemon, Leon M.; Madsen, Brent D.; Michaels, Kenneth W.; Nelson, Cory J.; Short, Michael E.; Sipinski, Gene; Westphal, Nathan R., Compact spray device.
Carpenter, M. Scott; Furner, Paul E.; Gasper, Thomas P.; Kubicek, Chris A.; Lemon, Leon M.; Madsen, Brent D.; Michaels, Kenneth W.; Nelson, Cory J.; Short, Michael E.; Sipinski, Gene; Westphal, Nathan R., Compact spray device.
Furner, Paul E.; Gasper, Thomas P.; Kubicek, Chris A.; Lemon, Leon M.; Madsen, Brent D.; Westphal, Nathan R.; Michaels, Kenneth W.; Nelson, Cory J.; Carpenter, M. Scott; Short, Michael E., Compact spray device.
Furner, Paul E.; Gasper, Thomas P.; Kubicek, Chris A.; Lemon, Leon M.; Madsen, Brent D.; Westphal, Nathan R.; Michaels, Kenneth W.; Nelson, Cory J.; Carpenter, M. Scott; Short, Michael E., Compact spray device.
Furner, Paul E.; Gasper, Thomas P.; Kubicek, Chris A.; Lemon, Leon M.; Madsen, Brent D.; Westphal, Nathan R.; Michaels, Kenneth W.; Nelson, Cory J.; Carpenter, M. Scott; Short, Michael E., Compact spray device.
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