Safety circuit for automatic assembling machine
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0971570
(2001-10-09)
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우선권정보 |
DE-0050542 (2000-10-11) |
발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Birch, Stewart, Kolasch & Birch, LLP
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인용정보 |
피인용 횟수 :
0 인용 특허 :
5 |
초록
▼
A safety circuit for protecting against an inadvertent operation activation of a pneumatic drive of an automatic assembling machine has at least one vertical cylinder (1) and one horizontal cylinder (2), each being controlled by one of first and second multi-way valves (3, 4) and fed by a primary pn
A safety circuit for protecting against an inadvertent operation activation of a pneumatic drive of an automatic assembling machine has at least one vertical cylinder (1) and one horizontal cylinder (2), each being controlled by one of first and second multi-way valves (3, 4) and fed by a primary pneumatic circuit. Two further pneumatic control circuits (8,9) are included in the automatic assembling machine that are automatically switch into and out of the primary pneumatic circuit, wherein the at least one vertical cylinder (1) and the at least one horizontal cylinder (2), after the "switching into", either remains in its current position or moves to a rest position. Opened and closed switching of a pneumatic primary circuit is caused according to an activated mode-of-operation set by a system control (SPS) of the automatic assembling machine.
대표청구항
▼
A safety circuit for protecting against an inadvertent operation activation of a pneumatic drive of an automatic assembling machine has at least one vertical cylinder (1) and one horizontal cylinder (2), each being controlled by one of first and second multi-way valves (3, 4) and fed by a primary pn
A safety circuit for protecting against an inadvertent operation activation of a pneumatic drive of an automatic assembling machine has at least one vertical cylinder (1) and one horizontal cylinder (2), each being controlled by one of first and second multi-way valves (3, 4) and fed by a primary pneumatic circuit. Two further pneumatic control circuits (8,9) are included in the automatic assembling machine that are automatically switch into and out of the primary pneumatic circuit, wherein the at least one vertical cylinder (1) and the at least one horizontal cylinder (2), after the "switching into", either remains in its current position or moves to a rest position. Opened and closed switching of a pneumatic primary circuit is caused according to an activated mode-of-operation set by a system control (SPS) of the automatic assembling machine. ns with respect thereto, a subset of the marks being initial-position/orientation-determining marks on no more than one side of the graphics area, the method being of a type including (a) placing the sheet of material on a sheet-receiving surface, (b) sensing the subset in a field of view of a main sensor to determine a position and orientation of the sheet of material and approximate positions of the plurality of registration marks, (c) sensing precise positions of the marks, and (d) narrow-path-processing with respect to the graphics area on the sheet of material in response to the precise positions of the marks with respect to the graphics area, the improvement comprising: if the subset is not in an expected location, automatically determining a coordinate region of the subset on the sheet-receiving surface; and in response to determining the coordinate region of the subset, automatically repositioning the main sensor to the coordinate region such that the subset is within the field of view of the main sensor. 3. An apparatus for cutting a graphics area from a sheet of material bearing such graphics area and a plurality of registration marks in predetermined positions with respect thereto, a subset of the marks being initial-position/orientation-determining marks on no more than one side of the graphics area, the apparatus being of a type including (a) a sheet-receiving surface, (b) a main sensor adapted to sense the subset in a field of view of the main sensor to determine a position and orientation of the sheet of material and approximate positions of the plurality of registration marks and to sense precise positions of the marks, and (c) a cutter operatively connected to the sensor and movable about the sheet-receiving surface, the cutter adapted to cut the graphics area from the sheet of material in response to the precise positions of the marks sensed by the main sensor, the improvement comprising a coordinate region locator which includes the main sensor, the coordinate region locator adapted to automatically determine a coordinate region of the subset on the sheet-receiving surface and to automatically reposition the main sensor to the coordinate region such that the subset is within the field of view of the main sensor. 4. The apparatus of 3 wherein the coordinate region locator includes: a zoom lens on the main sensor; and a controller adapted to (a) enlarge the field of view of the main sensor by zooming the lens, (b) locate the coordinate region of the subset within the enlarged field of view, (c) reposition the main sensor in response to the locating step, and (d) shrink the field of view of the main sensor by zooming the lens such that the subset is within the field of view of the main sensor. 5. The apparatus of claim 3 wherein the coordinate region locator includes: a main-sensor height adjustor; and a controller adapted to (a) enlarge the field of view of the main sensor by increasing the distance of the main sensor from the sheet of material, (b) locate the coordinate region of the subset within the enlarged field of view, (c) reposition the main sensor in response to the locating step, and (d) shrink the field of view of the main sensor by decreasing the distance of the main sensor from the sheet of material such that the subset is within the field of view of the main sensor. 6. The apparatus of claim 3 wherein the coordinate region locator includes: a secondary sensor with a field of view larger than the field of view of the main sensor; and a controller adapted to (a) locate the coordinate region of the subset within a field of view of the secondary sensor, and (b) reposition the main sensor after locating the coordinate region of the subset such that the subset is within the field of view of the main sensor. 7. The apparatus of claim 3 wherein directive indicia is printed on the sheet of material outside the coordinate region of the subset in predetermined positions and orientati
이 특허에 인용된 특허 (5)
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Hall John L. (Maidenhead GB2), Control mechanism for pneumatic apparatus.
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Redman Carl E. (Lake Oswego OR), Door with fluid actuator door opening and closing mechanism.
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Sasaki Katsumi (Aichi JPX), Method and apparatus for controlling and positioning fluid actuator.
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Horn Edward R. (Nashotah WI) Hopkinson Derek (Menomonee Falls WI), Pneumatic locking valve with manual override.
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Adam Gunter H. (1342 Rutledge Ave. Charlotte NC 28211), Torque control system.
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