Web-slitter with electronic motor control
OwnerSemion Stolyar, Thomas Kirk +3inventors
InventorsSemion Stolyar, Thomas Kirk, Richard M. Holbert, Robert M. Houze, Daniel E. Tooke
Life of this patent
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Abstract
An electronically controlled web-slitter includes dual electric motors whose functions may be controlled by an electronic controller accessed either on the chassis of the web-slitter or by way of a computer coupled to the electronic controller. Vertical and side-shift blade set-up and functions are accurately controlled. The device includes a dovetail fitting for providing structural connection of parts, and a follower engaged with said first motor for translating rotational movement into vertical motion, and multiple sensors for sensing and controlling motor positions within the device.
Claims10
An apparatus for positioning a blade (30) vertically with a lower anvil (34) and applying vertical force for conversion to horizontal force by an attached side shift mechanism against said lower anvil (34) for use in a web slitter comprising;
- a) a carriage assembly
- b) a device coupled to the carriage assembly (11) for applying a predetermined vertical force comprising;
- i) a sleeve (48) having a first and second end and a dovetail fitting (52) mounted to said first end of said sleeve (48) for providing structural connection of parts;
- ii) a first motor (26) equipped with discrete incremental movement for controlling vertical force attached to said second end of said sleeve (48);
- iii) a follower (502) engaged with said first motor (26) for translating rotational movement of said first motor into vertical motion;
- iv) a first spring (47) having a first and second end located vertically in said sleeve (48), said first end in contact with said follower (502) for converting vertical motion of said follower (502) into force;
- v) a plunger (50) vertically guided by said dovetail fitting (52) located at said second end of said first spring (47) for receiving said force;
- vi) a lever (68) pivotally attached to said dovetail fitting (52) located underneath said vertically guided plunger (50) for receiving said force for transferring said force to a side shift mechanism;
- vii) a pin (60) vertically guided by said dovetail fitting (52) having a first and second end, said first end engaged with said lever (68) for following said lever (68);
- vii) a first sensor (64) for sensing said second end of said vertically guided pin (60) for controlling first motor (26) position;
- c) a device for discrete incremental movement of said upper blade (30) in a vertical direction comprising:
- i) a second motor (20) equipped with discrete incremental movement for controlling vertical movement;
- ii) a second vertical shaft (44) coupled to said second motor (20) for transmitting discrete incremental movement;
- iii) a threaded sleeve (46) having a first and second end, said first end engaged with said second vertical shaft (44) for transmitting said discrete incremental movement of said second vertical shaft (44) into vertical motion and said second end rigidly attached to said dovetail fitting (52) for transferring said vertical motion to said dovetail fitting (52);
- iv) a second sensor (62) for sensing said dovetail fitting (52) in a specific position for controlling second motor (20) position.
An apparatus for positioning a blade (30) vertically with a lower anvil (34) and applying vertical force for conversion to horizontal force by a detachable side shift mechanism against said lower anvil (34) for use in a web slitter comprising;
- a) a carriage assembly
- b) a device coupled to the carriage assembly (11) for applying a predetermined vertical force and comprising;
- i) a sleeve (48) having a first and second end and a dovetail fitting (52) mounted to said first end of said sleeve (48) for providing structural connection of parts;
- ii) a first motor (26) equipped with discrete incremental movement for controlling vertical force attached to said second end of said sleeve (48);
- iii) a follower (502) engaged with said first motor (26) for translating rotational movement of said first motor (26) into vertical motion;
- iv) a first spring (47) having a first and second end located vertically in said sleeve (48), said first end in contact with said follower (502) for converting vertical motion of said follower (502) into force;
- v) a plunger (50) vertically guided by said dovetail fitting (52) located at said second end of said first spring(47) for receiving said force;
- vi) a lever (68) pivotally attached to said dovetail fitting (52) located underneath said vertically guided plunger (50) for receiving said force for transferring said force to a side shift mechanism;
- vii) a pin (60) vertically guided by said dovetail fitting (52) having a first and second end, said first end engaged with said lever (68) for following said lever (68);
- vii) a first sensor (64) for sensing said second end of said vertically guided pin (60);
- c) a device for discreet incremental movement of said upper blade (30) in a vertical direction comprising:
- i) a second motor (20) equipped with discrete incremental movement for controlling vertical movement;
- ii) a second vertical shaft (44) coupled to said second motor (20) for transmitting discrete incremental movement;
- iii) a threaded sleeve (46) having a first and second end, said first end engaged with said second vertical shaft (44) for transmitting said discrete incremental movement of said second vertical shaft (44) into vertical motion and said second end rigidly attached to said dovetail fitting (52) for transferring said vertical motion to said dovetail fitting (52);
- iv) a second sensor (62) for sensing said dovetail fitting (52) in a specific position;
- c) a lever (54) for locking and releasing a side shift mechanism against said dovetail fitting (52).
Dependencies are inferred from the claim text.