Method and device for stopping a spool on an open-end spinning machine
AssigneeRieter Ingolstadt Spinnereimaschinenbau AG
InventorsWalter Mayer, Sebastian Brandl, Josef Neumeyer
Life of this patent
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Abstract
A method of stopping a spool which is driven by a continuously rotating spool roller on an open-end spinning machine. The spool is lifted off the spool roller and a braking roller is placed on the peripheral surface of the spool, after which the braking roller is braked to a stop. In this case, the roller is driven substantially at the peripheral speed of the spool roller before being placed on the spool. In order to perform the method, the braking roller has associated with it a braking device which is connected for control purposes to a spool-changing device. The braking device is constructed as a direct-current machine with a resetter.
Claims27
A method of stopping a spool driven by contact with a continuously rotating spool drive roller, comprising the following steps:
- a) lifting said spool off said drive roller to move said spool out of driving contact with said drive roller;
- b) bringing the peripheral surface of said spool into contact with a braking roll as said spool is still rotating;
- c) applying a braking force to said braking roll to stop said braking roll and said spool;
- and
- d) driving said braking roll at a peripheral speed which is substantially the same as that of said spool prior to applying the braking force to said braking roll.
A device for stopping a spool onto which a thread is wound which is driven by contact with a continuously rotating spool drive roller, comprising:
- a) lifting means for moving said spool out of contact with said drive roller;
- b) a braking roll disposed adjacent to said spool;
- c) means for brining said braking roll into peripheral contact with the peripheral surface of said spool;
- d) braking means for applying a braking force to said braking roll to stop said roll and said spool;
- e) means for accelerating said braking roll up to the circumferential speed of said spool before applying said braking means;
- f) a thread monitor for monitoring said thread;
- g) a spool changing device for exchanging an empty tube for said spool;
- and
- h) control means connecting said spool lifting means to said thread monitor and said spool changing device for controlling the stopping and exchanging of said spool upon concurrence of a predetermined thread condition detected by said thread monitor.
Dependencies are inferred from the claim text.