MACHINE AND PROCEDURE FOR THE DYEING OF REELS OF YARN AND/OR TEXTILE FIBRES WOUND ON PACKAGES

• US 20130276246A1
• Filed: 12/23/2011
• Published: 10/24/2013
• Est. Priority Date: 12/27/2010
• Status: Active Grant

• Current Assignee: Innovation & Research Srl
• Original Assignee: Innovation & Research Srl
• Inventors: Bellini, Giovanni
• Granted Patent: US 10,066,329 B2
• Time in Patent Office: Days
• US Class Current: 8/636
• CPC Class Codes: D06B 1/08 from outlets being in, or almost in, contact with the textile material
• CPC Class Codes: D06B 5/16 through yarns, threads or filaments

Abstract

A machine dyeing reels of yarn and textile fibers wound on packages, including: a structure delimiting a chamber partially or fully filled with a dyeing fluid; a support immersed in the dyeing fluid; a plurality of reel-holder rods that communicate via the fluid with the support to allow the dyeing fluid to pass the support; first and second recirculation mechanisms associated with the structure, to initiate transit of the dyeing fluid in accordance with at least one set route. The first recirculation mechanism interposed between the chamber and the support induces the dyeing fluid to pass through the reel-holder rods and includes a pump and respective selection mechanisms to intermittently channel the dyeing fluid through the support, the reel-holder rods, and the respective reels. The second recirculation mechanism induces transit of the dyeing fluid within the chamber in accordance with at least one closed route.

Claims

1-12. -12. (canceled)

13. A machine for dyeing reels of yarn and/or of textile fiber wound on packages, comprising:

a structure delimiting at least one chamber at least partially or completely filled with at least one dyeing fluid, in which a dye has been dispersed;

support means placed within the chamber, in a position that is at least partially immersed in the dyeing fluid, the support means comprising at least one support plate including a plurality of hollow parts, each of which includes a series of hollow reel-holder rods;

recirculation means operationally associated with at least one reel-holder rod to induce the dyeing fluid to pass through the reel-holder and the respective reel and/or textile fiber wound on a package that is slotted onto the reel-holder, on an intermittent basis, the recirculation means comprising;

a first recirculation mechanism operationally interposed between the chamber and the support plate to induce the dyeing fluid to flow between at least one of the reel-holder rods and the chamber;

at least one selection mechanism operationally interposed between the initial recirculation mechanism and a corresponding hollow part, each selection mechanism configured to switch between an open position, in which the first recirculation mechanism induces the dyeing fluid to pass through at least one reel-holder of the respective hollow part, and a closed position, in which the dyeing fluid does not pass through the reel-holder rod of the respective hollow part;

at least one second recirculation mechanism operationally associated with the structure to induce sufficient transit of the dyeing fluid within the chamber on at least one closed route, sufficient to maintain uniform concentrations of dye and dyeing fluid temperature.

14. A machine as claimed in claim 13, wherein a period of time relating to the closed position of the selection mechanism, in absence of a flow of dyeing fluid through the reels, is between 10 and 60 seconds, or is no less than 5 seconds, or is no less than 3 seconds.

15. A machine as claimed in claim 14, wherein the recirculation means comprises:

the first recirculation mechanism including at least one pump operationally interposed between the chamber and the support means to induce the dyeing fluid to flow between at least the reel-holder rod and the chamber;

the at least one selection mechanism including a valve operationally interposed between the initial recirculation mechanism and the reel-holder rod, the selection mechanism configured to switch between the open position, in which the initial recirculation mechanism induces the dyeing fluid to pass through at least one reel-holder rod and the respective reel and/or textile fiber wound on a package, and the closed position, in which the dyeing fluid does not pass through the reel-holder rod and the respective reel and/or textile fiber wound on a package.

16. A machine, as claimed in claim 14, further comprising:

at least one control unit operationally associated with the selection mechanisms, the control unit configured to switch at least one of the selection mechanisms from an open position to a closed position, simultaneously to the switching of another selection mechanism from a closed position to an open position, to stop flow of the dyeing fluid by plural reel-holder rods and channeling the dyeing fluid through other reel-holder rods.

17. A machine, as claimed in claim 16, wherein the control unit, together with the selection mechanisms, is configured to implement a selective and sequential supply of dyeing fluid to a number of reels, the supply of the dyeing fluid through the reels of each group being carried out for a period of time not in excess of 2 minutes, or not in excess of 30 seconds, or of 10 seconds, the control units and selection mechanisms determining at least a sequential supply cycle of the dyeing fluid of the group of reels, followed by a period of stasis, in which the supply to the reels is stopped for a set period of time.

18. A machine, as claimed in claim 17, wherein the control unit, together with the selection mechanisms, is configured to stop the selective and sequential flow or stasis for a period of time not less than five times a total supply period for each supply cycle, or of a same order of magnitude as the supply time period corresponding to each supply cycle, or around 30 seconds.

19. A machine, as claimed in claim 16, wherein:

the first recirculation mechanism is operationally placed in correspondence with at least one main duct, the main duct communicating via the fluid with the chamber;

each hollow support part of the support plate includes an auxiliary duct, the auxiliary duct communicating via the fluid with the main duct from the side opposite to the chamber;

each selection mechanism comprises, for each auxiliary duct of each hollow part, at least one valve, each valve configured to switch between a closed position, in which the respective valve does not allow transit of the dyeing fluid from the initial recirculation mechanism, and an open position, in which the respective valve allows the transit of the dyeing fluid, from the initial recirculation mechanism.

20. A machine, as claimed in claim 14, wherein the recirculation means comprises an initial recirculation mechanism including at least one pump operationally interposed between the chamber and the support plate to induce flow of the dyeing fluid between the reel-holder rod, and between a plurality of reel-holder rods that communicate via the fluid with the support plate and the chamber, the initial recirculation mechanism configured to switch between an operating position in which it induces the dyeing fluid to pass through at least one reel-holder rod, and a non-operating position, in which the dyeing fluid does not pass through at least one reel-holder rod.

21. A machine, as claimed in claim 14, wherein the recirculation means comprises:

the first recirculation mechanism including at least one pump operationally interposed between the chamber and the support means to induce the dyeing fluid to flow between at least the reel-holder rod and the chamber;

the at least one selection mechanism including a valve operationally interposed between the initial recirculation mechanism and the reel-holder rod, the selection mechanism configured to switch between the open position, in which the initial recirculation mechanism induces the dyeing fluid to pass through at least one reel-holder rod and the respective reel and/or textile fiber wound on a package, and the closed position, in which the dyeing fluid does not pass through the reel-holder rod and the respective reel and/or textile fiber wound on a package.

23. A machine, as claimed in claim 18, wherein:

the first recirculation mechanism is operationally placed in correspondence with at least one main duct, the main duct communicating via the fluid with the chamber;

each hollow support part of the support plate includes an auxiliary duct, the auxiliary duct communicating via the fluid with the main duct from the side opposite to the chamber;

each selection mechanism comprises, for each auxiliary duct of each hollow part, at least one valve, each valve configured to switch between a closed position, in which the respective valve does not allow transit of the dyeing fluid from the initial recirculation mechanism, and an open position, in which the respective valve allows the transit of the dyeing fluid, from the initial recirculation mechanism.

24. A method for dyeing reels of yarn and/or of textile fiber wound on a package, in machines for dyeing thereof, comprising:

transiting a dyeing fluid in accordance with a predefined route, wherein the transiting of the dyeing fluid comprises;

inducing the dyeing fluid to pass through at least one reel-holder rod, or a plurality of reel-holder rods, of the machine and through at least one reel of yarn and/or textile fiber wound on a package on the reel-holder rod, the reel-holder being immersed in the dyeing fluid;

stopping flow of the dyeing fluid through the reel-holder and the respective reel and/or textile fiber wound on a package, for a set period of time;

inducing, via a respective recirculation mechanism, transit of the dyeing fluid around the reel-holder rods and the respective reels of yarn and/or textile fiber wound on packages, in accordance with at least one closed route.

22. A machine, as claimed in claim 25, wherein:

the first recirculation mechanism is operationally placed in correspondence with at least one main duct, the main duct communicating via the fluid with the chamber;

each hollow support part of the support plate includes an auxiliary duct, the auxiliary duct communicating via the fluid with the main duct from the side opposite to the chamber;

each selection mechanism comprises, for each auxiliary duct of each hollow part, at least one valve, each valve configured to switch between a closed position, in which the respective valve does not allow transit of the dyeing fluid from the initial recirculation mechanism, and an open position, in which the respective valve allows the transit of the dyeing fluid, from the initial recirculation mechanism.

25. A method as claimed in claim 24, wherein the flow of the dye through the reel-holder rod and the respective reel is stopped for a period of time of 10 to 60 seconds inclusive, or for a period of time not less than 5 seconds, or for a period of time not less than 3 seconds.

26. A method as claimed in claim 24, wherein the passing the dyeing fluid through a plurality of reel-holder rods and the respective reels of yarn and/or the textile fiber wound on packages takes place simultaneously to stopping of the flow of dyeing fluid in another plurality of reel-holders of the machine.

27. A method as claimed in claim 26, wherein the passage of the dyeing fluid through the reel-holder rods determines a selective and sequential supply of dyeing fluid to a number of reels, the supply of the dyeing fluid through the reels of each group being carried out for a period of time not in excess of 2 minutes, or not in excess of 30 seconds, or of 10 seconds, each supply cycle for each group of reels comprising at least a stasis, wherein the supply to the reels of the respective group is stopped for a set period of time, or not in excess of 20 seconds.

28. A method as claimed in claim 25, wherein the passing the dyeing fluid through a plurality of reel-holder rods and the respective reels of yarn and/or the textile fiber wound on packages takes place simultaneously to stopping of the flow of dyeing fluid in another plurality of reel-holders of the machine.

29. A method, as claimed in claim 28, wherein the passage of the dyeing fluid through the reel-holder rods determines a selective and sequential supply of dyeing fluid to a number of reels, the supply of the dyeing fluid through the reels of each group being carried out for a period of time not in excess of 2 minutes, or not in excess of 30 seconds, or of 10 seconds, each supply cycle for each group of reels comprising at least a stasis, wherein the supply to the reels of the respective group is stopped for a set period of time, or not in excess of 20 seconds.