Apparatus on a drafting system of a spinning machine, especially a draw frame, carding machine, combing machine or the like, for weighting the drafting system rollers
First Claim
1. An apparatus on a drafting system of a spinning machine for weighting a drafting system roller, comprising:
- a cylinder;
a piston axially movable within the cylinder;
a piston rod extending from the piston for applying weighting to the roller;
an optical sensor positioned on one of the cylinder or the piston and configured to measure a distance between the sensor and a counter-surface on the other of the cylinder or the piston and produce a corresponding output signal;
an evaluation device coupled to the output signal and producing a distance signal corresponding to a measured distance of the sensor from the counter-surface to determine a position of the piston and piston rod; and
an electronic control and regulation device coupled to the sensor and configured to receive the distance signal, wherein the electronic control and evaluation device is adapted to compare the distance signal to stored predetermined maximum and minimum values relating to allowable lap formation on the roller and wear to the roller, respectively.
1 Assignment
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Accused Products
Abstract
An apparatus on a drafting system of a spinning machine, especially a draw frame, carding machine, combing machine or the like, for weighting the drafting system rollers, has at least one pressure fluid cylinder with a piston which is acted upon by pressure fluid and is arranged so as to be axially movable inside a cylinder housing and from which a piston rod extends. The piston rod passes through at least one cylinder cover that forms the end boundary of the cylinder housing. For determining the position of the piston with the piston rod, an optical distance sensor scans the distances with respect to a counter-element and the distance sensor is connected to an evaluation device.
14 Citations
23 Claims
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1. An apparatus on a drafting system of a spinning machine for weighting a drafting system roller, comprising:
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a cylinder; a piston axially movable within the cylinder; a piston rod extending from the piston for applying weighting to the roller; an optical sensor positioned on one of the cylinder or the piston and configured to measure a distance between the sensor and a counter-surface on the other of the cylinder or the piston and produce a corresponding output signal; an evaluation device coupled to the output signal and producing a distance signal corresponding to a measured distance of the sensor from the counter-surface to determine a position of the piston and piston rod; and an electronic control and regulation device coupled to the sensor and configured to receive the distance signal, wherein the electronic control and evaluation device is adapted to compare the distance signal to stored predetermined maximum and minimum values relating to allowable lap formation on the roller and wear to the roller, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification