US3019630A

US3019630A - Washing or dyeing machine

Info

Publication number: US3019630A
Application number: US853434A
Authority: US
Inventors: Fleissner Johann; Fleissner Gerold
Original assignee: Fleissner & Sohn Maschf
Current assignee: Fleissner & Sohn Maschf; Fleissner & Sohn Maschinenfabrik
Priority date: 1955-08-31
Filing date: 1959-10-16
Publication date: 1962-02-06
Anticipated expiration: 1979-02-06

Description

Feb. 6, 1962 J. FLEISSNER ETAL 3,019,630

WASHING OR DYEING MACHINE Filed Oct. 16, 1959 2 Sheets-Sheet 1 Eyz INV EN TORS J/vam 1 7 Was/Yer fiero/dflel'ssner 4M Kw MM ATTORNEYJ Feb. 6, 1962 J. FLEISSNER ET AL WASHING 0R DYEING MACHINE 2 Sheets-Sheet 2 Filed Oct. 16, 1959 INVENTORS Johann F/GZSSHQP Gem/0' Fleas/14v United States Patent Qfiice wisest Patented Feb. 6, 1362 3,019,630 WASHING R DYEING MACHINE Johann Fleissner and Ger-old Fleissner, Egelsbach, Germany, assignors to Fleissner & Sohn Maschinenfabrik, Egelsbach, near Frankfurt am Main, Germany Filed Oct. 16, 1959, Ser. No. 853,434 Claims priority, application Germany Aug. 31, 1955 2 Claims. (Cl. 68-158) This invention relates to washing and dyeing machines and, in particular, is directed to a machine for the washing or dyeing of loose fibers in the form of bats or fleece, fiber bands, rope yarns and the like.

Washing machines are known, such as shown in Hanhart U.S. Patent No. 1,794,403, in which a perforated washing drum is substantially immersed in a tank of liquid and a woven textile drawn around the surface of the drum, with the liquid being drawn through the fabric into the drum by means of a pump producing a flow of liquid in the tank. Such prior structure is adapted to wash fabrics having sufficient tensile strength so that they can be pulled around the drum, but are not able to hold loose fibers or fleece upon the surface of the drum.

The object of this invention is to produce a machine for washing loose fibers or fleece in which means are provided for holding the material on the surface of the drum.

In general, these objects are accomplished by substantially immersing a rotatable perforated drum in a tank of fluid. A suction is produced in the tank by a pump. The loose material is led to an upper portion of a drum and taken from the drum at an adjacent upper portion, with the space between the two portions being closed ed by a cover plate. Consequently, the entire suction produced by the pump is effective over the entire surface of the drum contacted by the loose material, and this suction is sufiicient to hold the loose material on the surface of the drum during its transit from the ingress to the egress point from the drum. The liquid taken from the drum is cleaned, added to if necessary, and then recirculated into various portions in the tank around the drum so that the fresh liquid is substantially uniformly applied to all of the material being carried on the surface of the drum.

The means by which the objects of the invention are obtained are shown more fully with respect to the accompanying drawings, in which:

FIGURE 1 is a vertical cross-sectional view through the washing machine of this invention;

FIGURE 2 is a cross-sectional view on the line 2-2 of FIGURE 1;

FIGURE 3 is an enlarged detail view of a portion of FIGURE 1; and

FIGURE 4 is a cross-sectional view similar to FIG- URE 1 of a modified form of the machine.

As shown in FIGURE 1, the tank has a perforated drum 12 rotatably mounted therein so that the surface of the tank either lies below or the tank is substantially immersed below the surface 13 of the liquid within the tank. The loose fiber material 14 is fed to the drum over an endless conveyor belt 16, the outlet end roller 18 of which is positioned adjacent the uppermost portion of drum 12. The material, after passing around beneath the drum, is removed by a discharge conveyor 20 having its inlet roller 22 positioned adjacent a second portion of the upper part of the drum. The material is discharged over roller 23. The line tangent at the point 24 between roller 18 and drum 12 and the line tangent at the point 26 between roller 22 and drum 12' are each, respectively, located beneath the surface level 13 of the liquid in the tank. Between

rollers

18 and 22 is a third roller 28 which assists in directing the loose material 14 from conveyor 16 onto drum 12 and assists in removing the washed loose material from the drum onto conveyor 20. Beneath roller 28 and extending between lines tangent at the

points

24 and 26, respectively, is a cover plate 30 which forms a seal against the entrance of liquid or air between these tangent lines.

As shown in FIGURE 2, drum 12 is rotated by any suitable means, such as through a gear 32 driven from any suitable motor source through shaft 34. The blades 36 of a pump driven by motor M constitute a suction pump for withdrawing water from the interior of drum 12 in the direction of the arrows as shown. This liquid is led through a filter 38 to be cleaned and has make-up, fresh liquid added thereto, if desired, through pipe 40. This make-up liquid may be preheated or the liquid heated during the filtering and cleaning thereof by means of the heater H. The force of the pump circulates the liquid through pipe 42 back to the four

pipes

43, 44, 45, and 46 symmetrically arranged about drum 12. These pipes are perforated throughout their lengths in the direction of drum 12 so that the liquid discharged therefrom is substantially uniformly applied over the surface of the drum covered by the material 14.

In the modification shown in FIGURE 4, the roller 28 of FIGURE 1 is replaced by a porous conveyor belt 50 which extends continuously around the tension roller 52 and the drum 12. Roller 52 is tensioned by means of springs, weights, or other means so that sufficient distance exists between belt 50 and

rollers

18 and 22 for the passage of the material 14'.

In each of FIGURES 1 and 4, the material remains on the surface of drum 12 between the ingress line tangent at the point 24 and the egress line tangent at the point 26 over a distance of some 320. The suction pump creates a differential pressure between the exterior and the interior of the drum so that the liquid is drawn through the material on the drum and held upon the drum by the force of the liquid flowing through the material. Suflicient difiierential pressure and suction to hold the material on the surface of the drum is possible by reason of the cover 30 which prevents the entrance of air or water through the area of less resistance between

lines

24 and 26. Without this seal provided by the cover 30, there would not be sufiicient suction within the drum to hold the loose material 14 which lacks any tensile strength upon the surface of the drum as the drum is: rotated between the ingress and egress points of the machine. Thus the full force of the pump is applied on the material being washed.

This application is a continuation-in-part of our abandoned application Serial No. 587,717, filed May 28, 1956, for Washing or Dyeing Machine.

Having now described the means by which the objects of the invention are obtained, we claim:

1. In a fibrous material washing machine having a liquid container, a perforated washing drum rotatably mounted on its horizontal axis within said container and adapted to be substantially submerged below the washing liquid surface level to be maintained in said container, first conveyor means for feeding unwoven fibrous material to an ingress point to be borne on the revolving surface of said drum for movement beneath said drum, said ingress point lying just below the surface to be maintained for the level of the washing liquid, second conveyor means for removing said material from said drum at an egress point on the revolving surface of said drum, said egress point lying just below the surface to be maintained for the level of the washing liquid, said second conveyor means being positioned opposite to the said first conveyor means across the top of said drum, pump means for withdrawing washing liquid from the interior of said drum to form a differential pressure between the exterior and interior of said drum for drawing said liquid from said container through said material borne on the submerged portions of said drum into said drum and thereby firmly holding said borne material on the said drum as the said drum r0- tates through the major portion of a single revolution to move said material from said first to said second conveyor means, and liquid supplying tube means having a perforated outlet within said container and joined to said pump means for recirculating the said withdrawn liquid substantially uniformly against the submerged surface portions of said Washing drum, the improvement comprising a liquid and air excluding cover positioned within said drum on a circumferential surface adjacent to the uppermost portion of said drum, the ends of said cover lying beneath the level to be maintained for said liquid substantially submerging said drum While simultaneously being positioned respectively adjacent the said points of ingress and egress of said fibrous material on said drum whereby a substantially increased suction efiect is achieved by the action of said pump which said efiect is continuously maintained during the contact of said fibrous mate- 4 rial on said drum by increased diiferential pressure over the fibrous material covered surface of said drum.

2. A fibrous material washing machine as in claim 1, comprising an endless porous belt embracing the perforated Washing drum, and roller means mounted above said drum to tension said porous belt, said porous belt being adapted to feed the material onto said drum and remove the material from the said drum.

References Cited in the file of this patent UNITED STATES PATENTS 252,365 Ferguson Jan. 17, 1882 395,498 vLund Jan. 1, 1889 721,630 Willard Feb. 24, 1903 1,432,319 Brandwood Oct. 17, 1922 1,914,599 Hayes June 20, '1933 2,087,775 Matthews July 20, 1937 2,332,346 Rowlandson Oct. 19, 1943