US2057903A

US2057903A - Washing and drying apparatus

Info

Publication number: US2057903A
Application number: US740026A
Authority: US
Inventors: Edward L Moreland; Ralph D Booth; Charles H Danforth
Original assignee: Jackson & Moreland
Current assignee: Jackson & Moreland
Priority date: 1934-08-15
Filing date: 1934-08-15
Publication date: 1936-10-20
Anticipated expiration: 1953-10-20

Description

4 sheets-smet 1 Filed Aug'. 15, 1934 E. L.- MORELAND 'ET AL.

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WASHING AND DBYING APPARATUS Filed Aug. 15, 1954 4 Sheets-Sheet 4 llllllllllllllllllllllllllll i Patented oct. 2o, 193e.

WASHING AND DRYING APPARATUS Edward L. Moreland, Wellesley, Mass., Ralph D.

Application August l5, 1.934, Serial No. 740,026

8 Claims. (Cl. 34-48) n UNITED STATES PATENTf-orrlcs In the rotary method of printing textiles or other goods, a backing blanket for the goods to be printed is fed continuously over the surface of a roll ofthe printing machine to serve as a backing for the goods to be printed and for removing excess color. lAiter leaving the printing machine that portion of the blanket is washed to remove the color and is dried before being returned to the printing machine. Heretofore, considerable trouble has been experienced due to insufficient elasticity of the blanket causing imperfect register of the component parts of the printed design, also, because of inadequate absorbing and/or adsorbing power of the blanket causing smearing of the back and edges and leaving the printed material with excess color. Also, the blanket has been short lived and its maintenance cost has been high due to methods used after washing to dry the particular blanket.

zo It is an object of the present invention to provide a more satisfactory blanket for use with a rotary textile printing machine.

Another object of the invention isthe provision of a method of and apparatus for drying which is suitable for use in drying a blanket used in rotary printing of textile goods.

The invention will be more clearly understood from the following description in conjunction with the accompanying drawings: in which,

Fig. 1 is a diagrammatic view of a rotary textile printing assembly embodying the invention;

Fig. 2 is a fragmentary sectional elevational view of one endof a chamber of a drying unit;

Fig. 3 is a fragmentary sectional elevational view of the other end of the drying chamber;

Fig. 4 is a sectional view taken upon the line 4-4 of Fig. 2;

Fig.l 5 is a sectional view taken upon the line 5--5 of Fig. 2;

Fig. 6 is an elevational View, partly in section,

of another portion of the drying unit;

Fig. 7 is an elevational view, partly in section, of the portion of the drying unit shown in Fig. 6

and as viewed from the right of Fig. 6;

46 Fig. 8 is a front elevational view of another unit for removing liquid from the blanket after washing;

Fig. 9 is an enlarged sectional view taken upon the line 9-9 of Fig. 8; and l Fig. 10 is a sectional view taken upon the line IIl--I of Fig. 9.

Before explaining in detail the present invention, it is to be understood that the invention is not limited in its'application` to the details of construction and'arrangement of parts illustrated in the accompanying drawings, since the invention is capable of other embodiments and of being practiced or carried out in various ways. Also it is to be understood that the phraseology or terminology employed herein is for the purpose 5 of description and not of limitation, and it is not intended to limit the invention claimed herein beyond the requirements of the prior'art.

The invention is illustrated in the accompanying drawings as applied to an assembly for the 10 rotary printing ofvtextile or other goods and comprises, as shown in- Fig. l, a rotary printing machine III, a washing apparatus II carried by a suitable frame structure I2 and a drying unit having a chamber I5 carried by. a suitable frame 15 structure I6 depending from a ceiling or floor Il above the printing machine I0. If desired, a cooling chamber I8 may also be carried by the frame structure I6, together with'cooling chisels I9 and 20. 20

An endless blanket B is trained around a roll 2I mounted upon a shaft 22 which is mounted for rotation in the -frame of the machine I0 and is trained over

rolls

23, 24 and 25 carried by the frame structure I6 to a roll 26 carried upon a 25 shaft 21 which is mounted for rotation in the frame of the washing machine II. The blanket then passes between the rolls of a wrlnger 30 and past an air chisel 3l and is trained. through the drying chamber I5 by

rolls

32 and 33 and a 30 cooling drum 34. The blanket is then trained through the cooling chamber I8 by a cooling drum 35 and then passes the cooling chisel 20 to the drum 2l of the printing machine.

A roll of textile or other goods T is mounted 35 upon a suitable rotatable carrier 36 mounted upon a frame structure 31. The sheet of textile material T is trained around rolls 38 carried by the frame structure 31 and is passed around the roll 2l of the printing machine simultaneously 40 with the blanket B and is then led through a passage 39 in the oor I'l for further treatment.

The washing apparatus II mai. be of any usual construction and may comprise an open vessel 4d carried by the frame structure I2. The roll 2B is 45 carried by a shaft 2l which is rotatably mounted in the vessel 40. A plurality of brushes 4I carried by shafts 42 are also rotatably mounted within the vessel 40 adjacent the surface of the roll 26.

A conduit 43 for supplying color solvent extends 50 into the vessel 40 and is provided with a plurality of spray nozzles 44 adapted to -direct the color solvent upon the surface of the blanket B as it passes around the roll 26. The conduit 43 is provided with a brancl1'45 having a spray nozzle 46 65 travel ofthe blanket through the washing ap' adapted to direct color solvent upon the blanket above the washing apparatus and 'previous to the paratus.

'I'he wringer 30 may also be of any usual cony struction and may comprise a frame 41- in which are rotatably provided with a sprocket wheel 49 carried by the shaft 21. The shaft 21 is also provided with a sprocket wheel 52 which is connected by a chain 53fwith a sprocket wheel 59 carried by a shaft 55 which is mounted for rotation in suitable bearingscarried by the frame structure I6. 'I'he shaft 55 is also provided with a sprocket wheel 56 which is connected by a chain 51 to a sprocket wheel 58 carried by a shaft 59, which is rotatably mounted in suitable bearings carried by the frame structure i6. 'Ihe shaft 59 is provided with a sprocket wheel 60 which is connected by a chain 6| to a sprocket wheel 62 upon the shaft 22. The shaft 22 is also provided with a sprocket wheel 63 which is comiected to any suitable source of power by a chain 59.

The air chisel 3| is positioned adjacent the path of travelfof the blanket B as the latter leaves the wringer 30 and comprises `a closed chamber 65 having an opening 66 in its front wall which extends substantially across the width of the blanket B. A guide 88 is adjustably mounted upon opposite ends of the front wall of the chamber 65 by bolts 89 passing through elongated slots 90 in the guides and engaging the wall of the chamber'95. The guides 88 serve to guide the blanket past the opening 66 in the chamber 65. The chamber 65 is connected by a conduit 611'to a suction fan-61a of any suitable type adapted to gxhaust the entrapped air from within the vessel A plenum tube is yadjustably mounted within the chamber 65 and comprises a substantially semi-cylindrical body portion 69 closed at its ends by end walls 69 and provided with a cover portion '10 which is secured at one side to the portion '69 by screws 1| so as to provide an orifice 12 between it and the other side of the body portion 66. The size of the orifice 12 may be adjusted by bolts 13 extending through the cover portion 10 and the body portion 68. Each of the end walls 69 is .provided with an arcuate `slot 1t adapted to be engaged by a similarly shaped ang'e 15 on a plate |6 whichis secured to the wallof the chamber 65 by bolts 11. A pin 18 is ixed in each of the end walls 69 and extends through an arcuate slot 19 in the end wall of the .chamber 65. VA plate 80 is fixed upon each of the pins 1.0 and covers or seals the slot 19 in the end wall of the chamber 65. The outer end of each of the pins 16 is provided with a threaded portion 8| adapted `to receive a nut 82 for securing the plenum tubein its adjusted position. A gas, such in construction to the air the chamber in which the tioned is not closed.

The drying apparatus comprises a casing prochisel v3| except that plenum tube is posividing a chamber l which, as illustrated, is of substantially U-shape. The'casing providing the which is con-v nected by a chain 50 to a sprocket wheel 5|,

A washing apparatus il I land is provided with a liquid seal or trap 87. The cooling chisels |9 and 20 may be identical acm-coc cylindrical panel 96. A closure member 91, spaced from the panel 96, connects the inner panels 96 and- 95, the roll 33 being positioned between the closure member 91 and the panel 96 andserves to convey the blanket B from the lower to the upper portion ofthe chamber 9|.

.chamber l5 are closed by panels 92a connecting the adjacent side'edges of the

panels

92 and 99 and by panels 93a' connecting the adjacent vside edges of the

panels

93 and 95. 'I'he portion of the chamber I5 between the panel 96 and the closure member 91 is closed at its sides by panels 96a.

The sides of the Casings |06 and |01 having inlet and outlet openings |06 and |09 respectively are connected to the open ends of the casing forming the chamber i5. The casings |06 and |01 are provided with slots ||0 and respectively for the passage of the blanket B. A plurality of pegs 98 are xed in the

outer panels

92 and 93 so as to project into the chamber l5. Each of the pegs 98 is provided with an enlarged head 99 spaced from the

inner panels

A conduit 2 connects the inlet passage |09 and a chamber H5 which is positioned within a chamber H6. A heating coil ||1 is positioned within the chamber ||5 and is supplied from any suitable source with a heating medium, such as steam. The chamber ||5 is connected by a conwhich communicate with divide the depression |04 into a pluand the chamber ||6 is coliiected by a conduit |20' to the intake of the pump. ||9. A conduit H3 connects the chamber H6 with the outlet passage |09. The iow ofgases through the chambers I5, ||5 and 6 is controlled by an adjustable damper |25 positioned in the chamber ||6 and adjustable dampers |22 and |24 controlling an opening |23 in the outer wall of the chamber 6 and an opening |23a in the cond-uit H2 respectively.

In the operation of the apparatus, power is supplied through the chain 64 to rotate the drum 2| of the printing machine and the drum 26 of the washing apparatus and at the same time cause the endless blanket B through the printing machine I0, the washing 'machine the wringers.30 and past the air chisel 3| and thence through the drying chamber I5 and then through the cooling unit 8 and back to the printing machine. During this travel of the blanket, the sheet of textile material to-be printed is drawn through the'printing mato move progressively chine and the design printed thereon. Any exy cess color passing through or over the edges of the textile goods is absorbed and adsorbedby the lthe washing apparatus il and is subjected to the action of further color solvent supplied by the sprays 99 and also to the scrubbing action of Athe brushes 62.

The wet blanket then travels through the wringer 30 where a portion of the color solvent is removed by squeezing. This portion of the blanket then travels along the front wall of the chamber 65 past the opening 66 therein and is subjected to the action of a narrow stream of gas, such as air, travelling at high velocity which is ejected through the orifice 12. This high velocity stream of gas tends to cut the color solvent 01T the blanket.

Thevblanket B isv then conveyed through the chamber |5, past the cooling chisel I9 and over the cooling can 34 and through the cooling chamber i8 and over the cooling can 35 past the cooling chisel 20 to the printing machine. As the blanket passes through the chamber I5, air is caused to be circulated by the pump ||9 through the chambers I5, ||5 and IIS. The dampers |22 and |26, controlling the air inlet passages |23 and |23a, and the damper |25 are adjusted so that during the circulation of the air from the pump H9 a certain quantity of the solvent saturated air is removed from the circuit and replaced by fresh air. l

As the air is thus circulated through the chamber I5 the air stream is broken up by the pegs 98 thus causing the major portion of the air to contact with the blanket B.' It has been found in practice that the provision of the pegs 98 in the path of the air stream instead of the customary bales, not only produces a more eflicient `drying but reduces the time of drying, the required size of the drying unit and the power required to circulate the air.

Inasmuch as the pressure of the air stream flowing through the chamber |5 is greater at the inlet than at the outlet and inasmuch as the pockets "14a are directly connected to the outlet passage ||2, t e pressure upon the side of the blanket adja ent the pockets is less than that upon the other side of the blanket. This difference of pressure tends to maintain the blanket out of engagement with the pegs 98 during the travel of the blanket through the chamber 9|.

While the blanket B may be constructed of any material common for this purpose, it is preferable to employ an endless blanket formed from felted fibres or other material whichiis uniformly impregnated with a moisture resisting substance, such as a compound or emulsion containing vulcanized rubber. Such a blanket has the necessary adsorptive characteristics required and has been found to possess the desired degree of resiliency so that the proper register of the parts of the printed design is secured. If it is desired` that the blanket shall possess absorptive characteristics, itssiirface may be treated so that some of the fibres Iare exposed. Y

We claim: l Y 1. In an apparatus for printing textiles having a rotary printing machine, an endless blanket,

thereof, and means for forcing a gas through said chamber and around said pegs on one side of said blanket.

- 2. In an apparatus for printing textiles hav-'- ing a rotary printing machine, an endless blanket, means for washing and drying the blanket and means for guiding the blanket through the printing machine and Washing and drying means,

characterized by drying means including a chamber having an air inlet and outlet, said chamber having pegs projecting therein from one side thereof, and means for forcing a gas through said chamber on the other side of said blanket whereby the pressurev Within said chamber gradually decreases from said inlet to said outlet, said chamber having means adapted to cooperate with said blanket to provide pockets on the wall opposite said pegs communicating .with said outlet whereby a different pressure is maintained on opposite sides of said blanket tending to hold the same away from said pegs.

3. In an apparatus for removing liquid from a material, a chamber, a. plurality of pegs projecting into said'chamber from one wall thereof and each terminating at a point spaced from said material, means for guiding the material through A the chamber in one direction adjacent said pegs, and means for causing air to move through the chamber in the opposite direction around said pegs and in contact with said material.

4.In an apparatus for removing liquid from a material, a chamber, a plurality of pegs projecting into said chamber from one wall thereof and having enlarged portions spaced from the opposite wall of the chamber, means for guiding the material through the chamber adjacent said pegs, and means for causing air to move through the chamber in the opposite direction around said pegs and in contact with said material.

5. In an apparatus for removing liquid from sheet material, a chamber having an air inlet and an air outlet, a plurality of pegs projecting into said chamber from one wall thereof, means for guiding the sheet material through the chamber between said pegs and the opposite wall of said chamber, and means for causing air'to flow from said inlet around said pegs and in contact with Y one side of said material to said outlet at a gradually decreasing pressure, said chamber having means adapted'to cooperate with said material to provide pockets on said opposite wall communicating with said outlet whereby a different pressure is maintained on opposite sides of said material tending to holdsaid material away from said Pegs.

6. In an apparatus for removing liquid from sheet material, a chamber having an air inlet and an air'outlet, means for guiding the sheet material through lthe chamber, and means for.

causing air to ow from said inlet in contact with one side of said material vto said outlet at a gradually decreasing pressure, said chamber having means adapted to cooperate with said material to provide pockets on the wall -adjacent the other side of the ,material communicating with said outlet andclosed to said inlet whereby a different pressure is maintained on opposite sides of said material.

'7. In an apparatus for printing textiles having a rotary printing machine, an endless blanket,

means for washing and drying the blanket, and meansfor guiding the blanket through the print- -ing machine and washing and drying means, Acharacterized by drying meansincluding a 'chamber having an air inlet and outlet and means for forcing a gas into said chamber through said inlet and withdrawing the same through said outlet, whereby the pressure within said chamber gradually decreases from said inlet to said outlet, said chamber having means adapted to cooperate with said blanket to provide pockets on one wall thereof communicating with said outlet and closed to said inlet, whereby a different pressure wall past said opening, a high pressure gas nozzle Y within said chamber having an orice for projecting through said opening upon said material a thin high velocity stream of gas extending conn tinuously across said material, said nozzle having means for adjusting the thickness of said stream, means for creating a-reduced pressure within said chamber tending to cause said sheet material to seal said opening and to exhaust air from said chamber, and means foradjusting said `nozzle to change the angle of said stream of gas relative to the plane of said material while maintaining said orice in a substantially fixed position relative to said opening.

EDWARD L. MORELAND. RALPH D. BooTH. CHARLES H. DANFOR'IH