D - Textiles – Paper – 05 – B
Patent
D - Textiles, Paper
05
B
340/124
D05B 13/02 (2006.01) D05B 13/00 (2006.01) D05B 51/00 (2006.01)
Patent
CA 1261023
THREAD CHAINING DETECTOR ABSTRACT OF THE DISCLOSURE A bag closing container device applies a strip of closure tape to a container, and sews stitches through the tape and container walls, as the container is moved past a closure station. A first sensor, located near an encoder disc driven by the container transport motor, generates a signal proportional to the container transport speed. An idler roller frictionally engaged with the closure tape carries an indicator wheel, which generates in a second sensor a signal proportional to the tape speed. The thread used in stitching the containers is wrapped around a detector wheel on its way to the closure station, and is frictionally engaged with the wheel. Wheel rotation generates in a third sensor a signal proportional to thread speed. The device includes a microprocessor which receives the signals as inputs, continually compares container transport speed and thread speed, and generates a thread fault indication if the thread and container speeds deviate from a preselected ratio. Similarly, the microprocessor compares tape speed and container speed, and generates a tape fault signal should the tape speed and container speed deviate from their prescribed ratio.
536752
Rosen Marvin E.
Sampson Mark E.
Doboy Packaging Machinery Inc.
Frayne & Company Robert
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