IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0824350
(2007-06-29)
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등록번호 |
US-7530806
(2009-07-01)
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발명자
/ 주소 |
|
출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
5 인용 특허 :
7 |
초록
A cutting assembly for cutting a material extruded from a die can include a wiper adapted to connect to an auger or a rotating member, a die holder plate disposed adjacent the wiper, a cutter member disposed downstream from the die holder plate, and a pressure sensor.
대표청구항
▼
The invention claimed is: 1. A cutting assembly designed to cut a material extruded from a die plate, the assembly comprising: a die plate having a first and second side and at least one die plate opening; a wiper designed to be connected or interconnected to an end portion of an auger, said wiper
The invention claimed is: 1. A cutting assembly designed to cut a material extruded from a die plate, the assembly comprising: a die plate having a first and second side and at least one die plate opening; a wiper designed to be connected or interconnected to an end portion of an auger, said wiper and said end portion of said auger disposed adjacent said first side of said die plate, said wiper including at least one radially disposed wiper blade, said wiper blade designed to direct material into said at least one die plate opening for extrusion through said die plate when said wiper is rotated; a cutter head disposed adjacent said second side of said die plate, said cutter head including at least one cutter knife designed to cut material extruded through said at least one opening in die plate, said cutter head connected to a rotating member, said cutter head separate and independent from said wiper and said auger; a motor designed to cause said rotating member and said cutter head to at least partially rotate; and, a motor controller designed to control a speed of rotation of said motor, said speed of rotation of said motor at least partially independent from a rotation speed of said auger and wiper blade, said speed of rotation of said rotating member selected to cut a desired length of said extruded material that is extruded through said at least one opening in said die plate, said motor controller designed to at least partially control the speed of rotation of said motor based on at least one of a detected pressure of material prior to being extruded through said die plate, a detected pressure of said material as said material is being extruded through said die plate, a detected velocity of said material prior to being extruded through said die plate, a detected velocity of said material as said material is extruded through said die plate, a detected velocity of said material after being extruded through said die plate, and a detected length of the cut material. 2. The cutting assembly as defined in claim 1, wherein said wiper includes a plurality of wiper blades. 3. The cutting assembly as defined in claim 2, wherein said die plate includes a plurality of openings, at least one of said openings includes a removable die insert, said die insert including at least one opening designed to allow said material to be extruded therethrough. 4. The cutting assembly as defined in claim 3, wherein at least one of said wiper blades on said wiper has a length sufficient to fully pass over all of said openings in said die plate when said wiper is rotated. 5. The cutting assembly as defined in claim 4, wherein said detected pressure of said material is at least partially detected by a pressure sensor that is at least partially located in said die plate, at least partially spaced inwardly from said first side of said die plate, and combinations thereof. 6. The cutting assembly as defined in claim 5, wherein said length of said cut extruded material is at least partially detected by a length detector, said length detector including a detector selected from a camera, a light sensor, a radio frequency sensor, or a sound wave sensor. 7. The cutting assembly as defined in claim 6, including an auger motor designed to rotate said auger, said speed of said auger motor is at least partially controlled by at least one of a detected pressure of material prior to being extruded through said die plate, and a detected pressure of said material as said material is being extruded through said die plate. 8. The cutting assembly as defined in claim 7, wherein at least one wiper blade on said wiper includes an inclined leading edge and a trailing edge, said leading edge facing said die plate, said leading edge being at least partially inclined so as to encourage the movement of said material into said at least die plate opening when said wiper blade rotates so as to reduce pressure variations of said material being directed toward said at least one opening. 9. The cutting assembly as defined in claim 8, wherein the motor controller includes a pulse width modulator control system. 10. The cutting assembly as defined in claim 5, including an auger motor designed to rotate said auger, said speed of said auger motor is at least partially controlled by at least one of a detected pressure of material prior to being extruded through said die plate, and a detected pressure of said material as said material is being extruded through said die plate. 11. The cutting assembly as defined in claim 10, wherein at least one wiper blade on said wiper includes an inclined leading edge and a trailing edge, said leading edge facing said die plate, said leading edge being at least partially inclined so as to encourage the movement of said material into said at least die plate opening when said wiper blade rotates so as to reduce pressure variations of said material being directed toward said at least one opening. 12. The cutting assembly as defined in claim 11, wherein the motor controller includes a pulse width modulator control system. 13. The cutting assembly as defined in claim 5, wherein at least one wiper blade on said wiper includes an inclined leading edge and a trailing edge, said leading edge facing said die plate, said leading edge being at least partially inclined so as to encourage the movement of said material into said at least die plate opening when said wiper blade rotates so as to reduce pressure variations of said material being directed toward said at least one opening. 14. The cutting assembly as defined in claim 5, wherein the motor controller includes a pulse width modulator control system. 15. The cutting assembly as defined in claim 3, wherein said detected pressure of said material is at least partially detected by a pressure sensor that is at least partially located in said die plate, at least partially spaced inwardly from said first side of said die plate, and combinations thereof. 16. The cutting assembly as defined in claim 3, including an auger motor designed to rotate said auger, said speed of said auger motor is at least partially controlled by at least one of a detected pressure of material prior to being extruded through said die plate, and a detected pressure of said material as said material is being extruded through said die plate. 17. The cutting assembly as defined in claim 3, wherein at least one wiper blade on said wiper includes an inclined leading edge and a trailing edge, said leading edge facing said die plate, said leading edge being at least partially inclined so as to encourage the movement of said material into said at least die plate opening when said wiper blade rotates so as to reduce pressure variations of said material being directed toward said at least one opening. 18. The cutting assembly as defined in claim 2, wherein said detected pressure of said material is at least partially detected by a pressure sensor that is at least partially located in said die plate, at least partially spaced inwardly from said first side of said die plate, and combinations thereof. 19. The cutting assembly as defined in claim 2, wherein at least one wiper blade on said wiper includes an inclined leading edge and a trailing edge, said leading edge facing said die plate, said leading edge being at least partially inclined so as to encourage the movement of said material into said at least die plate opening when said wiper blade rotates so as to reduce pressure variations of said material being directed toward said at least one opening. 20. The cutting assembly as defined in claim 1, wherein said die plate includes a plurality of openings, at least one of said openings includes a removable die insert, said die insert including at least one opening designed to allow said material to be extruded therethrough. 21. The cutting assembly as defined in claim 20, wherein at least one of said wiper blades on said wiper has a length sufficient to fully pass over all of said openings in said die plate when said wiper is rotated. 22. The cutting assembly as defined in claim 21, wherein said detected pressure of said material is at least partially detected by a pressure sensor that is at least partially located in said die plate, at least partially spaced inwardly from said first side of said die plate, and combinations thereof. 23. The cutting assembly as defined in claim 20, wherein said detected pressure of said material is at least partially detected by a pressure sensor that is at least partially located in said die plate, at least partially spaced inwardly from said first side of said die plate, and combinations thereof. 24. The cutting assembly as defined in claim 20, including an auger motor designed to rotate said auger, said speed of said auger motor is at least partially controlled by at least one of a detected pressure of material prior to being extruded through said die plate, and a detected pressure of said material as said material is being extruded through said die plate. 25. The cutting assembly as defined in claim 1, wherein said detected pressure of said material is at least partially detected by a pressure sensor that is at least partially located in said die plate, at least partially spaced inwardly from said first side of said die plate, and combinations thereof. 26. The cutting assembly as defined in claim 25, including an auger motor designed to rotate said auger, said speed of said auger motor is at least partially controlled by at least one of a detected pressure of material prior to being extruded through said die plate, a detected pressure of said material as said material is being extruded through said die plate. 27. The cutting assembly as defined in claim 25, wherein at least one wiper blade on said wiper includes an inclined leading edge and a trailing edge, said leading edge facing said die plate, said leading edge being at least partially inclined so as to encourage the movement of said material into said at least die plate opening when said wiper blade rotates so as to reduce pressure variations of said material being directed toward said at least one opening. 28. The cutting assembly as defined in claim 1, wherein said length of said cut extruded material is at least partially detected by a length detector, said length detector including a detector selected from a camera, a light sensor, a radio frequency sensor, or a sound wave sensor. 29. The cutting assembly as defined in claim 1, including an auger motor designed to rotate said auger, said speed of said auger motor is at least partially controlled by at least one of a detected pressure of material prior to being extruded through said die plate, a detected pressure of said material as said material is being extruded through said die plate. 30. The cutting assembly as defined in claim 1, wherein at least one wiper blade on said wiper includes an inclined leading edge and a trailing edge, said leading edge facing said die plate, said leading edge being at least partially inclined so as to encourage the movement of said material into said at least die plate opening when said wiper blade rotates so as to reduce pressure variations of said material being directed toward said at least one opening. 31. The cutting assembly as defined in claim 1, wherein the motor controller includes a pulse width modulator control system. 32. A cutting assembly designed to cut a material extruded from an extrusion arrangement, the extrusion arrangement includes a die plate having a first and second side and at least one die plate opening and a displacement arrangement that causes the material to be conveyed to the first side of the die plate and then extruded through the at least one die plate opening to the second side of the die plate, the cutting assembly comprising: a cutter head disposed adjacent the second side of the die plate, said cutter head including at least one cutter knife designed to cut the material extruded through the at least one die plate opening, said cutter head connected to a rotating member; a motor designed to cause said rotating member and said cutter head to at least partially rotate, said motor not connected to the displacement arrangement; and, a motor controller designed to control a speed of rotation of said motor, said speed of rotation of said rotating member selected to cut a desired length of said extruded material that is extruded through said at least one die plate opening, said motor controller designed to at least partially control the speed of rotation of said motor based on at least one of a detected pressure of material prior to being extruded through said die plate, a detected pressure of said material as said material is being extruded through said die plate, a detected velocity of said material prior to being extruded through said die plate, a detected velocity of said material as said material is extruded through said die plate, a detected velocity of said material after being extruded through said die plate, and a detected length of the cut material. 33. The cutting assembly as defined in claim 32, wherein the displacement arrangement includes an auger. 34. The cutting assembly as defined in claim 32, wherein the extrusion arrangement includes a wiper that is positioned adjacent to the first face of the die plate, said wiper designed to direct the material into the at least one die plate opening for extrusion through the die plate. 35. The cutting assembly as defined in claim 32, wherein the extrusion arrangement includes a die insert designed to be positioned in the at least one die plate opening, the die insert includes at least one opening designed to allow the material to be extruded therethrough. 36. The cutting assembly as defined in claim 32, wherein said detected pressure of the material is at least partially detected by a pressure sensor that is at least partially located in the die plate, at least partially spaced inwardly from the first side of the die plate, and combinations thereof. 37. The cutting assembly as defined in claim 32, wherein said length of said cut extruded material is at least partially detected by a length detector, said length detector including a detector selected from a camera, a light sensor, a radio frequency sensor, or a sound wave sensor. 38. The cutting assembly as defined in claim 32, wherein the motor controller includes a pulse width modulator control system.
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