US2446021A

US2446021A - Roller stand for spinning and preparing machines

Info

Publication number: US2446021A
Application number: US660712A
Authority: US
Inventors: Noguera Joseph
Original assignee: Casablancas High Draft Co Ltd
Current assignee: Casablancas High Draft Co Ltd
Priority date: 1945-04-19
Filing date: 1946-04-09
Publication date: 1948-07-27
Anticipated expiration: 1965-07-27
Also published as: DE804075C; GB590400A; ES175463A1; CH261327A; FR943693A

Description

July 27, 1948.

J. NOGUERA ROLLER STAND FOR SPINNING AND PREPARING MACHINES Filed April 9, 1946 2 Sheets-Sheet 1 v mam/r012 JOJEPH 1V0 6062A July 27, 1948. J NQ 2,446,021

ROLLER STAND FOR SPINNING AND PREPARING MACHINES Filed April 9, 1946 2 Sheets-Sheet 2 7" a r w I 59 40 40 5 42 j 4 41 Li llllllll Patented July 27, 1948 ROLLER STANDFOR SPINNING AND PREPARING MACHINES Joseph Noguera t,v Prestwich,

' anchester, England, assignor to Casablanc'asHigh Draft Com pany Limited, Salford, Manchester, England, a

British company Application April 9, 1946, Ser'ialNo. 660,712 In Great Britain April 19, 1945 comprises a number of comparatively thin rollerswhich extend over the full length of the machine. The rollers are made up of short pieces coupled in series and supported at regularintervalsby cast iron brackets known as roller stands,

which are formed with or carry suitable bearings f or the roller necks. The rollers are subject to intense torsional strain which tends to produce uneven revolution of the rollers resulting in uneven workand, in the extreme, breaking of the roller. It is therefore highly important if such defects are to .be kept to a minimum, that thebearings of the roller stands are in alignment. This is not easy to achieve since even when the variousroller stands are exactly alike, they are "still liable to be out of alignment on account of mis alignm'entof the roller beam to which they are secure'd, said beam being itself made up of a number of individual lengths. It has therefore becomethe custom to fit the roller stands individually with the aid of a line and to file the base of the stando'r the underside of the middle and back bearings where necessary to bring the rollers into alignment.

The normal type of roller stand comprises two parts, a base which is secured to the roller beam and carries the front roller support, and a top part which is slidably supported upon an extension of the base and which carries the middle and back roller supports. It can readily be seen that to adjust the position of the various bearings of eachof such stands so that they are correctly aligned on the machine, entails much slow and awkward work, especially in view of the fact that adjustment is only possible in the downward direction; by removing metal. The normal type of roller stand has a further consequent disadvantage in that it is not interchangeable and cannot be mass-produced. a

, Over and above the difficulties already explained, the alignmentof the machine essentially depends upon the stability of the floor on which itrests,-and will be disturbed by slight subsidences therein. Misalignment of the machine is therefore, in time, inevitable, and the machine must berealigned periodically, by filing either the bearings or the basesof the stands, where necessary, with the inherent risk of over-filing and returning astand to use slightly lower than it should be. The present invention seeks to provide a roller stand which avoids an the above mentioned diffi- '6 Claims. (01. 19- 134) culties of adjustment and which will permit the roller bearings to be raised or lowered collectively, or the angle, which the plane of the rollers makes with the horizontal to be varied within any reasonable range required, in an extremely simple and accurate manner.

According to the invention, a roller stand comprises a base memberadapted to be secured to a stationary part, and an upper roller supporting member which is so arranged for connection to said base member that it is capableof being held in positions of adj ustment where it}has been bodily approached to, or moved away from said base member, or where it has been tilted about either end, whereby the height or inclination of the plane of the rollers that may be carried by said roller supporting member, can be set as required.

In order to show how the invention may be carried into effect a constructional form thereof will now bedescribed with reference. to the accompanying drawings in which:

I Figure 1 is a sectional side elevation of a roller stand; I

Figure 2 is a corresponding front elevation;

Figure 3 is a section taken on the IIIIII line of Figure 1; e

Figure 4 is a section on the line IV.-IV of Figure 1,

Figure 5 is a plan View of a part of the roller stand, and

Figure 6 is also a similar plan view of another ,part of the stand with certain members removed for better illustration.

The adjustable roller stand shown in the drawings is one particularly applicable to ring-spinning mechanism, since the plane of the rollers supported by the stand is intended normally to be inclined downwardly towards the front roller. The roller stand as shown in the general assembly of Figure 1, essentially comprises a foot or base member I and a roller supportingmember 2 carried thereby. V v

, InFigure 5 there is shown a plan View of the foot member I and it will be observed that it includes a base plate 3 for connection with the roller beam 4 of the spinning frame. From Figure 1 it appears that the base plate ibis held to the beam! by means of an anchor bolt. There is an upstanding approximately rectangular plate 5 formed integral with the base plate 3 and carrying anupwa-rdly inclined limb 8. The limb 6 is of channel section and at its .outer end has a pair of cheek members i and 3 which together I form a yoke, the yoke being bridged by a portion 9. As seen in Figures 1 and 4, the two cheek members 1 and 8 are apertured to receive a bolt III the head H of which fits into the cheek 8, in order to allow the head ll of the bolt It] to be turned, the head is formed with a shaped cavity l2 in which a suitable key may be introduced. The bolt is screwed into a ring nut l3 which fits as an immovable bush in the cheek member 7.

The bridge portion 9 has a horizontal bore which receives a plug I4 the latter being turnable within the bore of the bridge portion. The bridge portion 9 is also formed With a bore I5 at right angles to that first mentioned, and the plug I4 has a drilling l6 which may register with the bore l5, as shown in Figure 1. A link II is formed with screw-threaded portions l8 and I9, such portion I8 screwing within the bore l6 of the plug M. The link I! is formed with a slotted head which permits it to be adjusted with for example a screw driver, in regard to its position within the plug l4.

The portion 5 of the foot or base member I has an arcuate slot 2| formed in it, such slot being centered about the axis of the bolt 10. Adjacent the slot 2| the portion 5 is formed with a horizontal bore receiving a plug 22 Of the same type as the plug M. In like manner, the plug 22 receives the threaded end of a link 23.

The upper part of the roller stand consisting of the roller bearing supporting member 2, is shown as a separate detail in plan view in Figure 6. From an inspection of both Figures 1 and 6 it will be realised that the member 2 consists essentially of a strip-like portion 24 formed at one end with a depending hook-piece 25 on which there is a plate 26 that enters a conveniently formed slot 21 in the foot member I. The elbow 28 of the hook-piece 25 has a horizontal bore for reception of a plug 29 of the same character as the plug l4 previously described. The internally screw-threaded bore of the plug 29 has the screwthreaded portion IQ of the link I1 entered therein.

The strip-like part 24 of the roller bearing supporting member has two aligned

slots

30 and 3| which as shown in Figure 1, serve'to receive

slider blocks

32 and 33 that respectively support the bearings for the back and intermediate rollers. The

sliders

32 and 33 may be immobilised in any desired position by the

fixing bolts

34 and 35. The front of the strip portion 24 is itself formed for the reception of the front roller bearing 36 and adjacent to the latter there is a horizontal bore housing a plug 31. The latter is the same as the plug 22 and serves to accommodate the head 38 of the link 23, such head being slotted to permit adjustment of the link with the aid of a screwdriver. The forward extremity of the strip-like portion 24 has a depending pair of cheeks 39 and 40 (see particularly Figures 2 and 3) which together form a yoke that embraces the upper end of the portion 5 of the foot member l. The yoke serves to carry a bolt 4| having a head 42 of the same kind as that of the bolt l0 previously described. In like manner there is a cooperating nut 43 which is sunk into the cheek 39 and is immobilized therein as a bush. The bolt 4| passes through the arcuate slot 2| and is guided therein.

The depending plate 26 of the roller bearings supporting member 2, is formed with an arcuate slot 44. The latter is centered about the axis of the bolt 4| and the radius of the arc according to which the slot 44 is formed, is the same as that applying to the arcuate slot 2].

From the description above it will be realised that when the bolts 4| and 0 are slack, the links 23 and I! may be rotated by means of their

heads

38 and 20. The screw-threadings of each end of each link are relatively opposite, that is to say if the screw thread is right-hand at one end of a link, then the screw thread at the other end thereof is lefthand. Thus if, say, the link 23 be turned in one direction, then it will cause one end of the member 2 to be approached towards the adjacent end of the foot member I. If the link 23 be turned in the opposite direction, then the appropriate end of the member 2 will rise away from the adjacent end of the member I. The

same remarks apply to the link I1, and it will be realised that the member 2 may be adjusted relatively to the foot member I, so as to lift the member 2 bodily, or alternatively to swing the same about either end of its pivotal fixation by the links I! and 23. In this way the roller bearing supporting member can as a whole be adjusted for height, .and can be adjusted-toany desired inclination'in either direction. i

When the bearing supportinglmember. has been broughtto the desired. positionidf, adjustment by means ofthe linkslland 23', it-may be immovably held inthat position by tightening thebolts 4| and. I0. It will "be of interest to note that because of. the radiusat which the

arcuate slots

44 and 2| are made, slighttranslational movements of the member 2 will compensate for the varying positionswhichlthe bolts 4| and It may occupy in the arcuate slots. The translational movements willbe so small as-to be negligible for the reason that the radiusin question is fairly great and the-extent of the translational movements will depend upon the greatest radial distance whichexists between the chord joining either extremit of the arc; and the arc itself. Since the distance along the curved arc is in each case extremely small and the radius relatively great, the greatest radial distance between the arc and the chord .is extremely small. It will of course be appreciated that if it were not desiredto make theslots 2| and 44 arcuate, then it would be'necessary to allow a certain amount of slack as between the bolts 4| and I0 and their respective slots. This slack is unnecessary in the employment of". the arcuate slots described and shown.

The degree of adjustment which maybe obtained with a roller stand made .in accordance with the description above,- is incomparably greater than is possible with existing forms of roller stands. Moreover, the roller standof the invention permits great accuracy in the setting operation, whilst this operation is reduced to one of great simplicity.

At first sight, it may be considered that the construction of roller stand following the principles of the invention, is somewhat more elaborate than usual. The cost of production of require only infrequent lubrication.

Roller stands made in accordance With'the invention, can be interchanged within .a machine which in itself represents a highly desirable feature.

The existence of the channel section portion 6 in the foot or base member I, provides a convenient space for accommodation of the supporting and adjusting mechanism for the bars of what is known as the Casablancas automatic lever weighting.

I claim:

1. A roller stand for spinning and preparing machines comprising a base member for attachment to a stationary part of the machine, an upper roller supporting member, a pivotal connection between each end of said supporting member and said base member and adjusting means associated with each said pivotal connection for adjusting the height and inclination of said supporting member with respect to said base member.

2. Aroller stand for spinning and preparing machines comprising a base member for attachment to a stationary part of the machine, a projecting limb formed on said base member, an

upper roller supporting member co-extensive with.

said limb, two pin and slot mechanisms respectively for pivotally connecting each end of said supporting member to each end of said limb and an adjustable link member adjacent each said pivotal connection, said link members being operable independently to adjust the position of said supporting member with respect to said limb.

3. A roller stand for spinning and preparing machines comprising a base member for attachment to a stationary part of the machine, a projecting limb on said base member, an upper roller supporting member co-extensive with said limb, a pin carried at one end of said supporting member, a further pin carried at the opposite end of said limb, said pins engaging in arcuate slots in said limb and supporting member respectively, the slot in one member being centred about the pin in the same member and said slots having the same radius of curvature and adjusting means associated with each said pin and slot said, adjusting means being operable independently to adjust the position of said supporting member with respect to said limb.

4. A roller stand as claimed in claim 2 further comprising plugs turnably mounted adjacent each end of said limb and said supporting member, said plugs having screw-threaded bores therein for receiving opposite ends of said link members.

5. A roller stand for spinning and preparing machines comprising a base member for attaching to a stationary part of the machine, a projecting limb on said base member, a slotted upper roller supporting member co-extensive with said limb and formed for reception of the front roller, bearing blocks slidably mounted in said slots in the supporting member for reception of intermediate and back roller bearings, a pivotal connection between each end of said supporting member and said limb and adjusting means associated with each said pivotal connection, said adjusting means being operable independently to adjust the height and inclination of said supporting member with respect to said limb.

6. A roller stand for spinning and preparing machines comprising a base member, a foot on said base member for attaching to a stationary part of the machine, an upper roller supporting member, a projecting limb partially of channel section, substantially co-extensive with said roller supporting member, a pivotal connection consisting of a pin and arcuate slot mechanism between each end of said supporting member and said projecting limb and adjusting means associated with each said pivotal connection, said adjusting means being operable independently to adjust the height and inclination of said supporting member with respect to said limb.

JOSEPH NOGUERA.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,395,284 Leonard et al Nov. 1, 1921 1,876,376 Wilkinson Sept. 6, 1932 FOREIGN PATENTS Number Country Date 2,337 Great Britain 1871 24,953 Great Britain 1907