US2879536A - Means for cleaning floors in textile mills - Google Patents

Description

March 31, 1959 W. F. DENNING 2,879,536

MEANS FOR CLEANING FLOORS IN TEXTILE MILLS March l31, 1959 w. F. DENNING 2,879,536

MEANS FOR CLEANING FLOORS IN TEXTILE MILLS Filed Nov. l2, 1954 6 Sheets-Sheet 2 a TT-*XFN 1 kb ML-.J l-e'm/,U

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MEANS Fon CLEANING FLOORS 1N TEXTILE MILLS) Filed Nov, 12. 1954 ATTORNEYS March 31, 1959 w. F. DENNING 2,879,536

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March 31, 1959 w. F. DENNING MEANS FOR CLEANING FLOORS IN TEXTILE MILLS 6 Sheets-Sheet 6 Filed Nov. l2, 1954 INVENTOR: WADEF. DENMNG.

ATTORNEYS Unified States ice MEANS FOR CLEANING FLOORS IN TEXTILE MILLS Wade F. Denning, Albemarle, N. C., assignor to The` Denning Company, Inc., Albemarle, N. C., a corporation of North Carolina 1 Application November 12, 1954, Serial No. 468,259l

` 7 Claims. (Cl. 15-312) mulation of short bers, lint and any loose foreign mat ter beneath the rows of textile machines wherein the bottom portions thereofare not enclosed.

It is well known that the making of threads and yarnsI Ifrom textile lbers includes the cleaning'and blending of the bers and then drawing them out through various operations so that individual fibers tend to become parallel and to form endless, rope-like strands generally: known as roving. This roving isy formedV on various types of machines including roving frames'or ilyr frames and individual strands are also formed on spinning frames and, in many instances, several strands of' the spun yarn are twisted together by the use of twisting frames. ADuring the forming ofthe roving and yam'and during the twisting and spinning operations, the short broken. fibers insecurely retained by longer bers, known as fly or lint, tend to be thrown out to float in the air and settle on various parts of the correspondingmachines. However, most of the fly or lint settles on the floor beneath the machine. In some instances, means are provided to remove the accumulation of fly or lint from the various parts of the machine, butmeans have not been provided heretoforeA to remove'such accumula*` tions from beneath the machines and. from the aisles between the machines with the results that it has, been necessary to collect-and remove the accumulated lint: manually, as by sweeping, which requires a large expenditure for labor.

It is evident that by manually removing 'textile bers and the like from beneath the textile machines, the lint and other particles would be scattered and would then contaminate the lair inthe room in which the machin- 2,879,536 Patented Mar. 31, 1959v chimes and the isles therebetween,r wherein a plurality ery was located. Moreover, the dust, lintV and other particles which were removed'from the machinery would ultimately settle upon the yarn and loose lint'particles would often result in asubstantial amountof y,V rlint or the like winding up in the yarn as gouts and slugs which causes weakness and breakage and loss of yarn product. Another most objectionableV condition result-` ing from lint and the like thereof being allowed to accumulate beneath the machines is a hazard of destructive flash fires. l

It is therefore the primary object of this invention to provide a means for cleaning the floors beneath textile machines embodying a simple, economically constructed and maintained means which mayoperateI continuously to prevent accumulations oflint and other loose mattei? upon the iloor of the room in `which machines of the improved means of cleaning floors beneath'v 'textile'inaf of machines are arranged in parallel spaced relation'fto each other to form a row or rows of machines, whereby particles of lint and the like which become detached from the threads or yarns passing through each of the machines and which tloat to the oor beneath the machines will fall into a continuously moving stream of air which moves longitudinally beneath each of the machines. Thus, the stream of air will blow the particles of lint and the like from beneath one machine across the intervening alley way` between said rows of machines to the next adjacent machine and the moving stream of air beneath said next adjacent machine will blow the particles of lint to the next succeeding machine, etc. The particles of lint or the like are successfully blown or moved from one rowof machines t-o the next row of machines and each ofthe machines in the last row of machines ladjacent a wall of the room in which the machines are placed has means associated therewith for blowing the accumulated lint from all the machines in a given group of rows of machines to said wall and means for directing the accumulated lint along said wall into a corner of the room for collection therein by a suitable duct system for carrying the lint and the like to other points in the textile mill where the bers may be reprocessed.

It is another object of this invention to provide a means for cleaning the oors in textile mills beneath textile machinery wherein the size of the room and number of textile machines placed therein determine the direction of flow of the air stream so that in a small room where the accumulation of lint from each row of spinning frames or the like is relatively small, the air will be directed to one corner of the room for collection purposes. In a room having say -sixteen rows of textile machinery, the air may be directed to opposite sides of the room from the center land collected into different collection points and where there are extremely long rows of sixteen rows of textile machines in a single room, the ow of air can be directed from the center of the room to all four corners and collected in each corner to thus prevent excessive accumulation of lint to thus minimize the size of the blower units associated with each of said textile machines.

Some of the objects of the invention having been stated,l other obects will appear as the description proceeds when taken in connection with the accompanying drawings, in which- Figure l is a schematic plan view of a room showing an embodiment of the invention and wherein the outlines of the textile machines, such as spinning frames and the like are shown as rectangles with the blowers associated therewith being shown schematically;

Figure 2 is a view similar to Figure 1 except showing another arrangement of the blowers and the nozzles suitable for a larger room in which there are a greater number of textile machines;

Figure 3 is another view similar to Figure l but showing a room of approximately -four times the size of the room shown in Figurev l and showing the preferred direction vof the ilow of air from the blowers `in a room of this size to prevent excessive accumulation of lint;

Figure 4 is a transverse longtiudinal sectional view through a typical spinning frame and showing the man ner in which a blower unit may be attached thereto;

Figure 5 is an enlarged side elevation of the blower i unit and the tracks supporting the same;

Figure 6 is a view of the front end of `the blower unit looking along the liner6-6 in Figure 5;

Figure 7 is a plan view of the under kframe blower unit and showing one form of auxiliary blowing means for cleaning the cross-alleys between the rows of textile machines;

Figure 8 is a view similar to Figure 7 except showing a modified form of a cross-alley cleaning mechanism;.

Figure 9 is a view similar to Figure 8 except showing still another modified form of cross-alley cleaning mechamsm;

Figure l is a view showing another arrangement of the blowers and nozzles associated with spinning frames and the like and showing the arrangement when used in conjunction with a collection bin;

Figure ll is a transverse vertical sectional view through the lower portion of a typical spinning frame and showing the manner in which the collection binl isy mounted on the floor therebeneath;

Figure 12 is an isometric view of one end of the collection bin removed from beneath the spinning frame;

Figure 13 is a transverse sectional view through the collection bin and being taken substantially along thel line 13-13 in Figure 12.

Referring more specifically to the drawings, the numeral 10, in Figure 1, generally designates the walls of a room of a textile mill or`plant having a oor 11 on which a plurality of transverse and longitudinal rows of textile machines 12 are supported. The terms transverse and longitudinal rows correspond with the transverse and longitudinal axes of the machines, these textile machines all being seubstantially identical and being in the category of spinning frames, twister frames, winders and the like, that is, machines of the type which are open at their lower portions. As is well known, each of the machines 12 (Figure 4) includes a frame 20 having a creel 21 on the upper portion thereof which supports a plurality of spools or bobbins 22 or other means for directing yarns Y through respective series of drawing rolls 23 from whence the yarn Y passes downwardly and is wound about bobbins or spools 24 disposed at opposite sides of the machine. The bobbine or spools 24 are usually driven by tapes or cords 25 which pass around a cylinder 26 which are driven in the usual manner.

As heretofore stated, as the yarn Y passes from the source 22 to the bobbin or spool 24, particles of lint, y and foreign matter become detached from the yarns or threads and accumulate beneath the machine.

In order to prevent such accumulations of lint and the like beneath the machines, I have provided a unique means for continuously moving the lint from beneath one machine to the next adjacent machine, etc., along a transverse row of machines with means being provided beneath the last machine in said row for moving accumulations of lint and the like along the wall `adjacent the last row of machines and to a suitable collection dev1ce.

This is accomplished by creating currents of moving air beneath the machines to keep lint, fly and the like in substantially constant agitation along the tioor so as to prevent the accumulation of lint and the like on the floor under the machines and to move any accumulations which might occur. The air currents are preferably created by a series of under frame blowers mounted on the individual machines and arranged to move longitudinally beneath the machines and to direct air outwardly from-beneath each machine and along the fioor in a predetermined pattern to keep the oor clean. v

In the preferred arrangement, a pair of channel shaped tracks 30 and 31 (Figures 5, 6, 7, 8 and 9) are suitably mounted beneath each machine and a blower unit broadly designated at 32 is supported and driven on these tracks longitudinally of the machine. Although the tracks 30 and 31 are shown in Figure 4 as depending from the frame 20 beneath the machine it is to be understood that the tracks may be supported on the oor or in any other desired manner beneath the textile machines 12.

The illustrated blower unit 32 (Figures 5 and 6) comprises a fan blade housing 33 having a blade type blower 34 rotatably mounted therein and fixedly mounted on the end of a motor shaft 35 which is rotatable by an electric motor 36 suitably secured to the fan housing 33. The electric motor 36 has electrical energy'transmitted thereto by a pair of brushes 38 riding on electrical contact strip 39 and 39a suitably secured to and insulated from the track 31.

The opposite end of the motor 36 has a transmission unit 37 fixed thereto which is driven by the electric motor 36 to drive a pair of reversible driving wheels 40 and 41 (Figures 5 and 7) which ride on the flanges of the channel-shaped tracks 30 and 31 respectively. The driving wheels 40 and 41 are reversed by suitable linkage within the transmission unit 37, not shown, and a shifter rod 45 (Figures 5, 6 and 7) which is shifted by engagement with a pair of bunters 46, only one of which is shown in Figures 7 through 9, to reverse the direction of rotation of the driving wheels 40 and 41 in av manner well known in the art.

The fanv endy of the blower unit 32 is supported and guided by a pair of front grooved wheelsk and 51V riding 4in the channel-shaped track 30 and 31 respectively and rotatably mounted on the legs of a substantially U-shaped member 52, the lower central portion of which has one end of a pivot shaft 53 extending therethrough and the oppositeend of which is xedly embedded in the lower, central portion of the fan housing 33. f

The fan housing 33 has an opening 55 (Figure 5) therein for egress of air which is forced outwardly therethrough by the fan blades 34 and is directed as desired by a suitable nozzle 56. It is to be understood that several different 'types and shapes of nozzles 56 (Figure l6) could be used to direct the air from the blower unit 32 along the lioor 11 beneath the textile machines as desired.

Referring to Figure l, it will be noted that the no2'.-r zles 56 (shown somewhat schematically) on the most of the blowers 32, in each transverse row, are facing at angles of approximately 90 degrees from the path of travel of the blowers along the tracks 30 and 31 while thevlast two blowers in each transverse row have their noz'zles56 inclined at an acute angle relative to the line -of travel of theblowers 32 to thus gradually direct the accumulation of lint along the rearmost wall 10 of the room in which the textile machines are located. The accumulations of lint along the rearmost or left-hand Wallin Figure l are moved into the upper left-hand corner of the room to be taken up by a suitable collection device such as suction means indicated at 60 and directed by'suitable ducts to other parts of the mill for disposal or reprocessing.

It is also noted that, the first longitudinal row of textile machines in the right-hand portion of Figure l is provided with blowers having auxiliary nozzles or split nozzles so that some of the air directed therefrom is sent backwardly at an angle against the foremost or righthand wall and some of the air is directed to the next adjacent longitudinal row of textile machine 12. In Figure l means are shown for cleaning the alleys at the ends of the rooms comprising a pair of tracks, which are identical or similar to the tracks 30 and 31, mounted adjacent each end wall vand carrying suitable blowing means such as blowers 32 to direct air away from the end walls of the room to thus keep the end alleys clean and work the accumulated lint into the upper left-hand corner of the room in Figure l to be collected by the suction means 60.

There are numerous means by which air may be dit rectedrto the cross alleys between the ends of the textile machines 12 for cleaning the same and three such means are shown in Figures 7, 8v andJ 9. By referring to Figure`7 it will be noted that as the blower unit 32 moves from right to left along the'tracks 30 and 31, the U- shaped bracket 52 will engage one end of acontrol wire 65, a medial portion of which ispivotally mounted as at 66 on the lower portion of the track 30. One end of acontrol link 67 is pivotally -connected to the other end of the control wire 65 and has its opposite end pivotally connected to a plate 68 fxedly secured to the upper end of' a blower unit 70 which is oscillatably mounted as at 71 on a cross member 72 spanning the distance between the tracks 30 and 31. The blower unit 70 is resiliently urged in a clockwise manner by a spring 69, one end of whichA is secured to the track 30 andthe other end of which is secured to the control wire 65.

It is thus seen that, upon the U-shaped bracket 52 engaging the control wire 65 the control wire 65 will pivot in a counterclockwise direction to thus pivot the blower unit 70 in a counterclockwise direction thus directing the stream of air therefrom in a sweeping motion across the cross alley between adjacent textile machines 12 in the same row. Upon the blower unit 32 moving back tothe right in Figure 7, the blower 70 will return to the position there shown. This periodic oscillatory movement of the blower 70 creates suficient air currents across the cross alleys to clean the same.

In Figure 8 there is shown another means of directing air into `the cross alley between adjacent ends `of a pair of textile machines in the same longitudinal row which comprises a duct 74 fixed on the floor of the room in which the textile machines are placed and having an open end 75 which will periodically receive the nozzle 56 of the traveling blower 32 and direct air therefrom longitudinally through the duct 74 and outwardly diverging projections 76 and 77 thereon to thus sweep the cross alley between adjacent ends of the textile machines in the same longitudinal row.

Referring to Figure 9 there is shown still another modified form of nozzle for sweeping the cross alley between adjacent ends of textile machines in the same longitudinal row which includes a pivoted duct member or oscillatable nozzle 80, which is pivotally mounted on the floor as at 81 and is provided with an` opening 82 for periodic reception of the nozzle 56 of the traveling blower unit 32. As the blower unit 32 moves from right to left in Figure 9 the nozzle 56 will engage duct 80 at the left hand edge of the opening82 to thus pivot the duct 80 from the position shown in solid lines in Figure 9 to the position shown in dotted lines and thus direct a stream of air in a sweeping motion across the cross alley between adjacent ends of textile machines in the same row. By periodically directing air across the cross alleys, lint or other foreign matter in said cross'alleys will be moved under adjacent machines and into the air currents beneath'said machines for collection and disposal as described.

Referring to Figure 2, 'it will be noted that a room in which textile machinery is disposed is shown schematically as having sixteen transversel rows of four textile machines in each longitudinal row and wherein the nozzles on the blower units 32 are arranged so as to move the lint on the floor of the room from the center of the room outwardly to both side wallsv where the last two longitudinal rows of blowers 32 have their nozzles directed at an angle relative to their path of travel to direct the accumulated lint into both the right and left upper corners in Figure 2. The accumulated lint is then taken up in the collection units 60 in both corners thereof to be removed to other parts of the mill. The upper and lower end walls are also provided with blowers 32 and trackways 30 and 31 for directing the accumulation of-lint toward both side walls where it is moved down k'the wall by the blowers32 on each of the last two longi- Itudinal rows of textile machines. It is to be understood that, the ends of-each of 4the textile machines 12`shown could be equipped `with cross alley cleaners such as shown in Figures 7 through 9, if so desired'. f'

Referringto Figure 3, still another size roomin which textile machinery is disposedv is shown schematically as having sixteen longitudinal rows of eight; textile machines in each row and wherein the nozzles 56 on the blower units 32 are arranged so as to move the accumulated lint on the oor of the room from thev longitudinal center of the room outwardly toward each of the side walls and where the last two longitudinal rowsof blowers haver their nozzles directed at angles relative to their path of travel to direct the accumulated lint away from the transverse center of the room to both endwalls thereof. Suitable blower units 32-are also used at each end wall of the room for directing the accumulated lint in the end alleys toward each corner of the room. It is thus seen that, the lint is accumulated and moved by the air streams from the blower units 32- towards eachcornery of the room where the accumulation'is takenup in the collection units 60 in each of the four corners of the room.

Generally speaking, the larger the room in which the textile machines are disposed or the more textile machines placed in a room, the greater the number of collection points needed to take care of the accumulated lint so that the lint accumulated by the blower units 32 will not become too large to be moved by this size blower unit. It is to be understood that, if it is found necessary to move a larger accumulation of lint, the size of the blower units 32 may be increased to take care 'of the increased load requirement by providing a blower unit which will provide a stronger or higher velocity air stream. l e If desired, the arrangement ofthe blowers 32 and a collection bin or entrapping element shown in Figures 10-13 may be used where there are a large number of textile machines in one room to collect the accumulated lint so that the blowers 32 do not have to move as large an accumulation oflint from one wall to another along an entire row. The collection bin 100'includes a pair of base plate members 101 and 101 which are adapted to rest on the oor beneath the spinning frame 12 (Figure ll). The outer edges of the base plates 101, 101' are turned back to form inclined portions 102 and 102 which form an inclined ramp up which the air streams from the nozzles 56 and the blower 32 is moved along with any lint carried thereby.

The baseplates 101 and 101' also have vertically extending adjacent portions 103 and 103 integral therewith and the upper portions of which are bent to extend over the ` base portions 101 and 101 to form inclined plates 104 and 104. The portions 104 and 104' are provided with openings or perforations 105 and 105" therein to permit the passage of air therethrough and to block the passage of any lint or other 4foreign matter-carried by the air stream passing therethrough. TheAform of collection bin shown in Figures l through 13 is substantially the same length as the length of the spinning frame 12 and has both ends closed by doors 106 and 106 which are hingedly secured to the vertical portions 103 and 103 thereof. e

The vertical portions 1 03 and 103 are joined together and ixedly secured by any suitable meansv to form collection binson opposite sides thereof to collect accumulations of lint from both directions, but it is to be understood that, if desired the collection bin 100 could bev separated between the plates 103, 103 to form two separate bins which would be' used along a wall to collect accumulations of lint from only one direction. Although the inclined plate portions 102 and the verticall portions 103 are shown as being joined bya base plate 101, it is to be understood that, the inclined'plates 1'02 aswell as the vertical plates 103` could be suitably secured to the floor without the use of the plate 101 therebetween.

y With the lcollection bin 100 placed on the oor beneath the spinning frame-as shown in'Figur'e ll the v.blov'vers 32 on adjacent: spinningy frames will lform a current 'of' air moving along the oor and, will move up the inclined surface 102 along with any collection of lint lor foreign matter` carried thereby, As the current of. air is directed to and passes through the perforated portion 104 any .accumulation of lint and the like will be `stopped by the perforated plate 103 to fall into the collection bin or trough vformed between the inclined surfaces 102 and the vertical plate 103. The collection bin 100 may be cleaned out periodically by an operator bypassing a broom or the like down the trough and moving the accumulated lint and trash out one of the hinged doors 106 or 106.

While the means shown is particularly adapted to be used in textile mills, the inventionv is not limited thereto as the same or similar arrangements may be used to create air currents along the floors of rooms containing other types of machines.`

Although. the collection bin 100 is shown as being mounted on the oor beneath an open bottom textile machine 12 (Figures l0 through 13) it is to be understood that one half of the collection bin 100 could b'e easily mounted on the lioor adjacent the side walls of the room for collecting accumulated lint and the like. Suitable duct-work could beconnected to one end of the collection bins 100 to create a `moving current of air along the base plates 101 of the bins to carry away thelint accumulated by the bin 100. The duct-work connected to the collection bins 100 could lead into the oor on which the collection bins 100 are mounted and to any suitable suction element. The collection bins 100, mounted beneath the machines 12 or adjacent the walls of the room, would thus be automatically cleaned by the connecting duct-work and the suction element. v

In the drawings and specilication there has been set forth a preferred embodiment of the invention and, although specic terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being defined vin the claims.

I claim:

l. In combination with elongated textile machines, devices for cleaning the floor of a room having a plurality of textile machines therein, wherein said textile machines are open at their lowermost portions and spaced in transverse rows across the room, said devices comprising horizontally disposed track means mounted on the lowermost portion of most of the machines adjacent the iioor and longitudinally'thereof, Aa blower mounted to travel along each said track means, means for driving each blower along its track means and means on each blower for directing streams of air outwardly therefrom transversely of the direction of travel of the blower and in a substantially horizontal plane only along the oor.

2. In combination with elongated textile machines, devices for cleaning the floor of a room having a plurality of textile machines therein, wherein said textile machines are open at their lowermost portions and spaced in transverse rows across the room, said devices comprising horizontally disposed track means mounted on the lowermost portion of most of the machines adjacent the Hoor and longitudinally thereof, a blower mounted to travel yalong eachvsaid track means, means for driving each blower along its track means, means on each blower for directing streams of air outwardly therefrom transversely of the direction of travel of the blower and in a substantially horizontal plane only along the oor and means for reversing the direction of movement of the blowers upon each of the blowers reaching the end of its track means.

3. A device according to claim 2 including means for collecting the matter swept by the air streams of the blowers.

4. In combination with elongated textile machines, devices for cleaning the floor of a roomrhaving a lpluralityl of textile machines therein, wherein said' textile machines are open at their lowermost portions and spaced in transverse rows across the room, thev space between the transverse rows defining cross alleys, said devices comprising horizontally disposed track means mounted on the lowermost portion of most of the machines adjacent the tioor and longitudinally thereof, Aa blower mounted to travel along each said track means, means fordriving the blower along each track means, means for reversing the direction of movement of said blower adjacent each end of the track means, a nozzle on each of the blowers for directing the air streams produced by the blowers outwardly fromreach machine and along the oor in a substantially horizontal plane only and means mounted adjacent one end of each track means for directf ing an air stream across the cross alleys upon each traveling blower reaching said one end of the track means.

5. In combination with elongated textile machines, devices for cleaning the floor of a room having a plural-V ity of textile machines therein, wherein said textile machines are open at their lowermost portions and spaced in transverse rows across the room, the space between the transverse rows defining cross alleys, said devices comprising horizontally disposed track meansmounted on the lowermost portion of most of the machines adja-` cent the floor and longitudinally thereof, a blower mounted to travel along each said track means, means for` driving the blower along each track means, means for reversing the direction of movement of said blower adjacent each end of the track means, a nozzle on each of the blowers for directing the air streams produced by the blowers outwardly transversely from each machine and along the iloor in a substantially horizontal plane only, and oscillatable means mounted adjacent one end of each track means for oscillating an air stream across the cross alleys upon each traveling blower reaching said one end of the track means.

6. In combination with elongated textile machines, devices for cleaning the oor of a room having a plurality of textile machines therein, wherein said textile machines are open at their lowermost portions and spaced in transverse'rows across said room, the space between the transverse rows defining cross alleys, said devices comprising track means mounted on the lowermost portion of most of the machines adjacent the oor, a blower mounted to travel along each said track means, means for driving the blower along each track means, means for reversing the direction of the` driving means of said blower adjacent each end of the track means, a nozzle on each of the blowers for directing the air streams produced by the blowers outwardly from each machine and along the oor, an oscillatable blower mounted adjacent one end of each track means for oscillating an air stream across the cross alleys, means for oscillating said oscillatable blower upon each traveling blower reaching the end of the track -means and means for collecting the matter carried by said air streams.

7. Apparatus for cleaning the oor of a room havingl a plurality of textile machines therein, wherein said machines are spaced to form at least one row across said room, said means comprising blower means mounted on the lowermost portions of most of said machines in said row for directing streams of air in substantially a horizontal plane only along said row of machines and toward the last of said machines in-said row, and an entrapping element resting upon the floor beneath said last of said machines in said transverse row and extending transversely of the general direction of said streams of air for entrapping the matter carried by said streams of air while allowing said streams of air to pass through said entrapping element, said entrapping element comprising an inclined imperforate member `for changing the direction of the air stream entering said entrapping element and an inclined perforated ,plate inthe path of travel of said deected ar stream for collecting any foreign matter carried by said air stream.

References Cited in the le of this patent UNITED STATES PATENTS Holleran July 31, 1923 Schmid May 31, 1927 Linder Dec. 4, 1934 Hodge et al Aug. 20, 1935

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