Method and device for feeding a metal wire to an operating machine at a constant tension and quantity
First Claim
1. A system for feeding a metal wire unwound from a corresponding coil to a machine by means of a wire feeder, the wire being fed at a desired tension, comprising:
- a tension sensor to detect the tension of the wire,the feeder having at least one rotary member driven by an actuator thereof on which the metal wire is wound, for a fraction of rotation or several rotations and suitable to supply the wire to the machine,a control unit to control the feeding of the wire at a predefined tension, said control unit, being provided to act on said rotary member to adjust the tension of the wire to maintain the tension constant at least within a pre-set and/programmable reference value,a quantity detector to detect quantity of the wire fed to the machine and connected to said control unit, said quantity detector for providing to the control unit data related to the fed quantity of wire, the control unit being suitable to detect the aforementioned quantity of wire on the basis of the data,wherein said control unit intervenes by adjusting the pre-set or programmed reference tension value to maintain the quantity of wire fed at a pre-set, self-learned and/or programmable reference value.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for feeding a metal wire to a machine by a wire feeder, the wire being fed at a constant and desired tension detected by a tension sensor, the feeder having at least one rotary member driven by an actuator thereof onto which the metal wire is wound for a rotation or fraction of rotation and suitable to feed the wire to the machine at the pre-set tension under the action of a control unit. A detector to detect the quantity of wire fed is provided and connected to the control unit to provide the control unit with the quantity data thereof, the control unit intervening on the rotary member to keep the quantity of wire fed at least within a reference value.
6 Citations
16 Claims
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1. A system for feeding a metal wire unwound from a corresponding coil to a machine by means of a wire feeder, the wire being fed at a desired tension, comprising:
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a tension sensor to detect the tension of the wire, the feeder having at least one rotary member driven by an actuator thereof on which the metal wire is wound, for a fraction of rotation or several rotations and suitable to supply the wire to the machine, a control unit to control the feeding of the wire at a predefined tension, said control unit, being provided to act on said rotary member to adjust the tension of the wire to maintain the tension constant at least within a pre-set and/programmable reference value, a quantity detector to detect quantity of the wire fed to the machine and connected to said control unit, said quantity detector for providing to the control unit data related to the fed quantity of wire, the control unit being suitable to detect the aforementioned quantity of wire on the basis of the data, wherein said control unit intervenes by adjusting the pre-set or programmed reference tension value to maintain the quantity of wire fed at a pre-set, self-learned and/or programmable reference value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification