US1760516A - Drying and finishing machine - Google Patents

Description

y 1-930 's. NORDEN 1,760,516,

DRYING AND FINISHING MACHINE Filed Feb. 19, 1929 5 Sheets-Sheet 1 May 27, 1930. s, NQRDEN 1,760,516

DRYING AND FINISHING MACHINE Filed Feb. 19, 1929 5 Sheets-Sheet 2 n//////// I, l mmm% y 1930- s. NORDEN 1,760,516

7 DRYING AND FINISHING MACHINE Filed Feb. 19, 1929 5 Sheets-Sheet s Patented May 27, 1930 '1 UNITED i STATES PATENT OFFICE. 4

SVAN NORDENZ, F GRANSTON; RHODE ISLAN D, ASSIGNOB: T0 MOORE FABRIC COM- PANY, OI IPAW'IUCKE'IJ, RHODE ISLAND, A CORPORATION .01 RHODE ISLAND DIRIYING 'AND ."EIINISHIB'TGv MACHINE Application med February 19,1929. Serial ms. 841,168. I

This invention relates to a machine for drying and finishing narrow ware fabrics.

' Such products, after being woven or knitted,

are commonly treated with a starch or size coating, and are then passed through a drying machine in which the strips of fabric are brought in contact with a succession of slowly rotated heated cylinders, by which the fabric is both smoothed and dried-and from which it is delivered in uniformlyfinished condition. C v 4 y The machines previously used have been well adapted to the drying and finishing of straight fabrics, but are not adapted to finishing curvilinear fabrics, particularly'when the curvilinear fabric is of elastic construction.

It is the object of my invention to provide an ,improved drying machine in which narrow curvilinear fabric, and particularly curvilinear elastic fabric, may be easily, quickly and economically dried and finished, while preserving and firmly establishing its predetermined curvilinear form. WVith this general object in view, an important feature of the invention relates to the provision'of an-improved form of drying cylinder, having a succession of truncated conical surfaces each adapted to receive a'separate strip of narrow curvilinear fabric.

Another feature of the invention relates to the provision ofsqueeze rolls of novel design and construction, by which the excess size or after described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings in which Fig. 1 is a side-elevation of my improved drying machine, with certain shafts and rolls shown in section;

Fig. 2 is a partial rear elevation ofthg mechanism shown in Fig. 1;

Fig. 3 is a plan view of certain driving connect1ons;.

Fig. 4 is an enlarged plan view of my improved squeeze rolls, taken substantially along the line 4.-4 in Fig. 1

' Fig. 5 is a detail sectional elevation, taken alongthe line 5-'5 in Fig. 4;

Fig. 6 is a plan view of a portion of adrying cylinder, partly in section;

Fig. 7 is a' sectional side elevation of the sizing bath and associated parts;

Fig. 8 is a partial plan view of the guiding cylinder in the sizing bath, looking in the direction of the arrow 8 in Fig. 7'

' Fig. 9 is aside new of the feed rolls for t e s1z1ng bath, looking in the direction of the arrows 9 in Fig. 7

23 secured to a plurality of upright posts or standards 24.- The posts24 are secured in bases 25 resting upon a suitable foundatron and having cross rods 26 extending v therethrough and secured-in outer or supplementary base members 27. I

The cylinders 20 are provided with.

sprocket wheels 30, engaged by a chain 31 passing successively around the sprockets of the several cylinders and also around a chain guide and tension roll. 33 a delivery roll 34 and a sprocket 35 on a drive shaft 36. The shaft 36 is rotated by power from any suitable source and the cylinders-'20 are thus positively rotated at predetermined speed, with successive rolls rotating in opposite dimotions.-

' Adjusting screws 37 are. provided for moving the guide-roll '33 to suitably tension the ehain3l. A steam pipe 38 (Fig. 2 is connected to each drying cylinder, preferably through the shaft portion 21 thereof, and the putting their continued rotation.

The cylinders 20 are of the special concylinders are thus highly heated while per- 6, so that the thickness of metal is substantially uniform throughout the length of the cylinder and the drying coefiicient thereof is correspondingly uniform.

It is obvious that the cylinder 20 may be made as a single continuous casting or as a plurality of cylindrical sections suitably 'sc cured together and with the joints firmly packed to make the assembled cylinder steam tight.

The pieces of curvilinear fabric F may be presented to the machine in any convenient manner, as in a box or tray 44 (Fig. 1) and are drawn therefrom over a feed roll 45, loosely mounted above a sizing bath or pan 47. The feed roll 45 (Fig. 9) is also formed with a succession of truncated conical surfaces corresponding to the curvature of the fabric to be treated. In view, however, of the greatly reduced diameter of the roll 45, compared with the cylinders 20, the angle of the conical surfaces of the roll'45 is much reduced in order to correspond to the same curvature of the fabric.

Pressure rolls 48 (Fig. 9) are rotatably mounted on brackets 49, which in turn are loosely mounted on a supporting rod 50. The brackets 49 are secured in position by pins 51 extending through slots 52 in the hubs 53 of the brackets 49. The rolls .48 are tapered to correspond to the truncated sections of the roll 45, so that the surface speed of the rolls 48 will substantially correspond to .the surface speed of the feed roll 45 at all points of contact therewith.

A guide-roll 55 (Figs. 7 and 8) is loosely mounted in the lowerportion of the sizing pan 47, this guide-roll being freely rotatable by the friction of the fabric thereon and being formed with a plurality of truncated conical sections similar to the feed roll 45.

The fabric F passes from the sizing bath to a squeeze roll preferably formed as a succession of rubber-covered truncated conical sections, as indicated in Fig. 4. The roll 60 is mounted on a drive shaft 61, supported in suitable fixed bearings in the frame of the machine.

A pressure roll 64 (Fig. 4) engages each truncated conical surface of the squeeze roll 60 and each pressure roll is also preferably of conical shape and is provided with a relatively thick rubber or cushion surface. The rolls 64 are rotatably mounted on oblique axes on brackets 65 having guiding portions 66 slidable transversely on a supporting cross bar 67. The cross bar 67 is preferably grooved transversely, as indicated at 68 to receive the guiding portions 66 and direct the movement thereof.

Springs 70 are provided for forcing the brackets 65 and rolls 64 toward the squeeze roll 60 and such inward movement is limited by stop screws 71 threaded in the cross bar' 67 and provided with collars 72 (Fig. 5) limiting inward movement of the brackets 65.

The rolls 64 are so designed and proportioned that their peripheral speed will at all points substantially correspond to the pcripheral speed of the portions of the squeeze roll 60 engaged thereby. It will also be noted that each pressure roll 64 may be individually and manually adjusted toward or away from the squeeze roll 60.

It is essential that the squeeze roll 60 rotate in a definite speed relation to the rotation of the cylinders 20, but this speed relation is not constant, but varies with the construction and particularly with the thickness of the curvilinear fabric.

In Fig. 3, I have indicated one form of variable speed driving connection between the drive shaft 36 and the squeeze roll shaft 61. The shaft 36 has a chain and sprocket connection 75 to a cone pulley 76, which in turn is connected by a belt 77 to a second cone pulley 78, having a chain and sprocket connection 7 9 to the squeeze roll shaft 61.

A belt shifting mechanism 82 may be manually adjusted to move the belt 77 axially along the reverse cone pulleys 76 and 7 8, thus providing any desired speed relation between the cylinder 20 and the squeeze roll 60. Any other suitable or convenient speed changing mechanism may be provided in place of the reverse cone pulleys shown in the drawings.

The delivery roll 34 at the top of the machine (Figs. 1 and 2) is also formed with a succession of truncated conical surfaces, beveled to give the desired relative surface speeds at all points thereof.

Pressure rolls 90' (Fig. 2) are mounted on brackets 91 loosely positioned on a cross baror supporting rod 92, similar to the pressure rolls 48 and brackets 49 previously described. The rolls 90 are preferably conical and have substantially the same surface speed at all points of contact as the conical surfaces of the delivery roll 34.

It is essential that each strip of fabric engage its conical surface on each drying cylinder at points of corresponding diameter, and it is therefore essential that each strip of fabric be accurately guided as it approaches each drying cylinder.

For this pu rpose have provided a separate guide member 100 for each strip of fabric between .the squeeze roll 60 and the lowermost drying cylinder 20 and I have also provided additional guiding members 100 between each successive .pair of drying I and 11. The members '100 are mounted on cross bars 102 on which they are Secured 106. (Fig. 11

' the fabric therein.

by pins 103 (Fig. 10) extending through slots 10 1 and permitting limited independent angular self-adjustment of each. guiding device 100. a

A piece of narrowfabric F is received in a guideway 105 in each device 100, thelguidement. The guide-ways 105 are preferably open at their upper sides, as indicated at to permit easy threading of Having described the-- construction of my I improved drying aandfinishiug machine, the

method of operation thereof will be readily understood. The' strips of curvilinearnarrow fabric F are drawn out of the storage receptacle44f('Fig.1),over the feed roll 45, and under theguide-roll' by the driven squeeze-roll 60. The fabric-is thus sized or starched Land the excess material.-is squeezed out of the fabric between the squeeze roll and the pressure rolls 64.

i The fabric is then delivered to the lower- ;most drying cylinder 20, passing upward around successive drying cylinders until it reaches thedelivery roll 34, from which it is discharged in dried and accurately cur-.

vilinear form and from which point it may be'cared for in any desired manner.

It will be noted that the curvilinear fabric is supported at every point of contact on surfaces accurately-proportioned-to the desired curve of the fabric, and that at all points where the fabric is subjected to presf- 7 sure or tension the engaging surfaces" of op-.

posed rolls move at the same speed against each face of the-fabric and that the surface speeds are proportionate to the curve of the fabric.

By thus supporting the fabric during the sizin *and' drying operations, the fabric may die discharged with the 'exact degree of curvature "desired and contemplated in the weavin thereof. .This is particularly essential in treating curvilinear elastic fabrics infwhich the curvature may very readily become distorted if the engaging surfaces do not at all times'travel with suitably relatedsurface speeds. f; I

I my invention and the advantages thereof, I do not wish to be wise'thanas" set, forth Ic1ainiis:-

a 1. In a. drying and finishing machme,;.a

in the claims, but what plurality of drying cylinders each having itsmeans to present pieces of narrow curvilinear fabric to said cylinders.

2. In a dryingand finishingmachine, a plu rality of drying cylinders each having its outer drying surface formed with a succession of truncated conical portions, guiding means to :present pieces of narrow. curvilinear fabric to saidcylinders, and means to guide said fabric in a predetermined path from each cylinder to a successive cylinder.

3. In a drying and finishing machine, a plurality of drying cylinders each having its outer drying surface .formed with a succession of truncated conical portions, and guiding means to present pieces of narrow curvilinear fabric to said cylinders, all of said conical portions in any one cylinder being of identical inclination and diametraldimensions.

' 4. In a drying and finishingmachine, a plurality of drying cylinders each having its outer drying surface formed with a succession of truncated conical portions, and guiding means to present pieces of narrow curvilinear fabric to successive drying cylinderspall bf said conical portions in any one cylinder being of identical inclination and identical diametral dimension,.and the peripheral wall of each cylinder being of substantially uniform thickness from end to end. of said cylinder.

5. In a drying and finishing machine, a plurality of drying cylinders each having its outer drying surface formed with a succession of truncated conical portions, and guid ing means to present pieces of'narrow curvilinear fabric to successive drying cylinders, said truncated portions beingidentical in inclination and in diametral dimensions and said cylinders having substantially uniform heat transmitting capacity in all portions of the drying surface thereof. i

' 6. In a drying and finishing machine, a plurality of drying cylinders each having its outer drying surface formed with a succession of truncated conical portions, and guiding means to present pieces of narrow curvilinear fabric to said portions,-said guiding means being adjustable tothe path of the fabric. I 7. In a drying and finishing machine, a plu- I rality of drying cylinders each having its outer drying surface formed ivitha succession of truncated conical portions, and guiding means to present ieces of narrow curvilinear fabric to said cy 'nders, said guiding means each being independently self-adjusting to the path of each piece, of fabric. 2

8. In a drying and finishing machine, a plurality of drying cylinders each having its outer drying surface formed with a succession of truncated conical portions, and guiding means to present ieces of parrow'curvilinear fabric-to said c inders, said guiding means being indepen v entlfyQself-adjusting ,to the path of each piece 0 f bric and having a cen tral longitudinal threading opening in its upper face.

stantially uniform peripheral wall thickness is attained.

11. In a drying and finishing machine, a drying cylinder having a succession of truncated conical fabric-engaging portions, and means to guide a piece of narrow curvilinear fabric to an axially predetermined point of engagement with a conical surface of said cylinder.

12. In a drying and finishing machine, means to size apiece of narrow curvilinear fabric, and means to remove excess size therefrom comprising a squeeze roll having a succession of truncated conical fabric-engaging surfaces, and a pressure roll engaging said squeeze roll, said pressure roll having conical surfaces cooperative with said squeeze roll surfaces.

13. In a drying and finishing machine, means to size a piece of narrow curvilinear fabric, and means to remove excess size therefrom comprising a squeeze roll having a succession of truncated conical fabric-engaging surfaces, and a pressure roll engaging said squeeze roll, said pressure roll having conical surfaces coo erati e with said squeeze roll surfaces an having substantially the same surface speed as the engaged portion of said squeeze roll at all axial sections of said roll.

14. In a drying and finishing'machine, a squeeze roll, a plurality of drying cylinders, and a delivery roll, said rolls being of much less diameter than said cylinders and each of said rolls and cylinders being formed with a plurality of truncated conical portions disposed at such inclinations to their axes that eachroll and cylinder will accurately engage and forward a curvilinear fabric of predetermined curvature without curvilinear distortion.

15. In a. drying and finishin machine, a squeeze roll, a plurality of drying cylinders and a delivery roll, said rolls being of much less diameter than said cylinders and each of said .rolls and cylinders being formed with a plurality of truncated conical portions. the diameter, speed, and inclinations of the conical portions of all of said rolls being so proportioned relative to each other that the relative travel of the long and short edges of a curvilinear fabric engaged thereby will be uniform for all of said rolls.

16. In'a'drying and finishing machine, a squeeze roll formed with a plurality of trunaving its outer drying surface 'cated conical portions, a separate conical pressure rollengaging each conical portion of said squeeze roll, and means to support each pressure roll for free rotation about:

an axis so inclined with respect to the axis of said squeeze roll that the surface speeds of vided for yieldingly advancing each pressure roll toward said squeeze roll. and separate manually adjustable means is provided'to posltively limit such advance movement for each roll.

fixed my signature.

SVAN NORDEN.

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