US1721077A - Opener - Google Patents

Description

July 16, 1929. N 1,721,077

I OPE'NER Filed Oct. 20, 1926 5 Sheets-Sheet l HTTo R nrEYs July 16, 1929. 5, LE N 1,721,077

OPENER Filed 00* 20, 1926 5 Sheets-Sheet 2 n TTOR N'EYS P. E. LE BLAN OPENER July 16, 1 929.

Fil ed Oct. 20, 1926 Fig. 5

5 Sheets-Sheet 3 hTToRHEYs.

July 16, 1 .929. P. E.,LE BLANY OPENER Filed Oct. 20, 1926- 5 Sheets-Sheet 4 @5197:- Prr-e [mile 1.9/51 BY:@-Z!L,8

FIT

7m RNEYS July 16, 1929. p 5 LE N 1,721,077

OPENER Filed Oct. 20, 1926 5 Sheets-Sheet 5 Jamaal 07, Pier-re Emile L 06/ Patented July 16, 1929.

2 UNITED STATES 1,721,071 rarrur OFFICE.

PIERRE EMILE LE BLAN, 0F LILI LIE FRANCE, ASSIGNOR TO FILATURE DE CO'IONTH.

BARROIS, SOCIETE ANONYME, {IF LILLE, FRANCE. I

OPENER.

Application filed October 20, 1926, Serial No. 142,833, and in France November 5, 1925.

One of the principal detects found in the machines for opening textile fibres and which occasions the most trouble during the operation, resides in that foreign bodies such as pieces of bale hoops, scraps of iron, cords or the like are allowed. to pass into the lap which is delivered by the machine. Such bodies, which are thus mixed with the textile mate rial often remain in the lap, even after the doubling operation in the scutcher beater, during the following operation of carding, are liable to damage the card clothing. It is well known that properly carded goods cannot be obtained with a damaged or even blunted card-clothing. If the foreign body consists of pieces of cord or packing material, such pieces are torn up by the breaker and the resulting fibres become mixed with the textile fibre and remain finally interposed in the yarn. Further, the contact between a piece of iron and the breaker may produce sparks which will set'fire to the card.

The present invention has for its object to provide a very simple and reliable stop'motion device which may be readily utilized with the known openers and heaters and which will obviate all of the aforesaid defects by automatically stopping the machine when a ton eign body is present in the lap of cotton which is delivered by the opener or beater, thereby obviating the deterioration of the card clothing when such lap is passed through the card.

Another object of the inventionconsists in providing means whereby the calen dcr rollers may be readily spaced apart in order to remove the foreign body whichmay be wedged between adjacent rollers.

The invention will be set Forth in thefollowing description with reference to the apt pended drawings which are given by way oi? example and in which:

I Fig. 1 is a sectional view of an embodiment of the stop-motion device according to the invention applied to the upper calender rollers of an opener and beater, in normal operation, the means for releasing the pressure upon the upper calender roller being omitted.

Figs. 2 and 3 are corresponding elevation and plan view.

Fig. 4 is a view analogous to Fig. '1 showingthe stop-motion device in the stopping position. i j I Fig. 5 is an elevation corresponding to Fig.4.

Fig. 6 shows in elevation the device. for releasing the pressure upon the upper roller, the latter being in normal operation, and.

Fig. 7 is a section on the line 7 7 of Fig. .6. Fig. 8 is a view similar to Fig. 6 showing the stop motion device in the stopping position and the upper calender roller with the pressure released. I

The device comprises a cam 1 which is provided with two pawls 1 and is loose on the axle 2 of the upper calender roller 3 which is driven by friction by the lap A passing through the calender rollers 3 and 4e and moved by friction by the lower roller 4. This latteris positively actuated by means of a power transmission device, not shown. The pawls 1 pivoted to cam 1 cooperate with a ratchet wheel 5 which is keyed to the axle 2.

Ilpon the said axle is loosely mounted the gear wheel 6 which is formed in one with a cam 7 which is urged into contact with the cam 1 by the spring 8. The two cams are each provided with various recesses and bosses which engage one another in the inoperative position shown in Fig. 1, and the saidcams will thus be given a relative axial displacement when the rotation of one cam relatively to the other has brought the said bosses opposite one another. a 1

Tothe axle 9 of the roller 4 is keyed the gear wheel 10 having the same width as the gear wheel 6 and coacting therewith; the gear wheel 11 having the same diameter, pitch and modulus as the. gear wheel 10 is mounted loose upon the said axle and is secured to a cam 12. The usual stopping gear wheel 13 is keyed to the end of the axle 9. The cam 12 has a circular shape and includes a single notch 12 which normally makes contact with the circular roller 14 which is mounted on the second usual stopping gear wheel 15.

The said cam androller are rotatable on a shaft 16 secured to the lever 17 which, by piv oting on the axle pin 18, will control the stop ping of the. mechanism in the known-manner.

A weight 19 hung at the end of a cable 20 wound upon the cam 12 and attached thereto at 21 tends to rotate the said cam in the direction of the arrow 22.

The operation is as follows: 7

The roller 4: is actuated positively and drives thelap A. by friction; the roller 3 is in turn driven by friction upon the lap interposed between the two rollers; when a rivet, a piece of iron wire, or like obstacle passes along in the lap, the roller 3 will be stopped due to the wedging action of the obstacle. The positively driven roller t will continue to turn in the direction of the arrow 23, thus actuating the gear wheel 6 and the cam 7 through the medium of the gear wheel 10 keyed to the shaft 9. The wheel 6 tends to rotate the cam 1 in the direction of arrow 23, but the pawls carried by the latter w ll engage the ratchet 5 and thus prevent 1ts rot ation. Due to the rotation of the cams 1 and 7 relatively to one another, the bosses 7 of the cam 7 are caused by the positive drive of wheel 6 to slide upon the bosses 7 of cam 1 against the resistance of spring 8, (Fig. 4) spring 8 is thus compressed and the gear wheel 6 is shifted to the left (Fig. 4), whereby it engages the gear wheel 11 which is thus coupled with gear wheel 10 and driven there by in the direction of arrow 23, through the medium of wheel 6. Since the cam 12 rotates with the gear wheel 11 according to the arrow 23, the notch 12 will leave the roller 14, so that the said roller will be driven to the right (Fig. 5), thus causing the stop lever 17 to rock about its axle-pin 18, thereby stopping the apparatus.

To set the apparatus in motion, it is simply necessary to take off the foreign body en-' gaged between the two rollers and to restore the cams T and 1 to their normal position as shown in Fig. 1.

The usual device employed for stopping the mechanism after a stated time, is not interfered with by the aforesaid arrangement,

' and operates normally by the jamming of the arms 13 and 15 which are mounted upon the respective gear wheels 13 and 15.

Figs. 6 and 7 illustrate a device permitting of easily and readily raising the upper roller to enable the operator to take off the foreign bodies which have been caught between the two rollers and have caused the stopping of the mechanism as above described.

In Figs. 6 and 7, a weight 25 mount-ed on the 1 end of the lever 26 which is pivoted at 27 and whose motion is limited by the stop 28, draws upon the plate 29 which is connected with the lever 26 by means of the bolts 3031, said bolts being connected together by the member 32.

The plate 29 thus'urged by the weight 25 will exercise in normal operation a pressure upon a second plate 33 through the medium of a cam 34- which is interposed between the two plates. The second plate imparts the pressure to the bearings 33 of upper roller 3 and thus presses the latter against the lower roller 4.

The section of the cam 34: is approximately elliptical, and theicam can be rotated about its axis by the lever 35 in order to bring its longer or its shorter axis perpendicular to the plane of the plates 29-33, according as it is desired to space the two plates away from each other for the normal operation (Fig. 6) or to bring them together when the upper roller 3 is to be raised.

The stop motion device is herein similar to that described with reference to Figs. 1 to 5. The cam member 12, however, is herein provided with a plurality of notches 12 with which cooperates a rounded part 14 having the same function as roller 14 of Figs. 1 to 5 and which is formed at the end of a member in secured to the lever 17 in an adjustable manner.

When in normal operation, the cam 34 tends to raise the plate 29, and this latter, which is maintained by the bolts 3031, will raise the weight 25 mounted on the lever 26 pivoted at 27; the pressure exercised by the cam 34: to raise theplate 29 will be transmitted upon the plate 33 which will thus itself exercise a pressure along the generatrix of contactof the two rollers 3 and 4. When a foreign body passes through the rollers with the lap, the gear wheel 6, as hereinbefore explained, is shifted into engagement with wheel 11, thus rotating the cam member 12. The rounded part 1 1- is shifted to the right thus throwing the lever 17 to the right and stopping the machine. To raise the roller 3 in order to remove the foreign body, the cam 34 is brought by the lever 35 into position such that its smaller diameter is vertiral; the plate 29 will descend, and the lever 26 now rests upon the support 28. At this time no pressure will be exercised upon the rollers, the upper roller may be easilylifted and the foreign body may be removed with facility. The upper roller is then released and descends in place by its own weight.

To again operate the machine, the cam 34 is brought into the original position, i. 0. its longer axis is made vertical, and the cam 12 is rotated through such an angle that the rounded portion 141 falls into a recess 12.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is: i i p 1. In a machine for opening textile fibres, a driving calender roller. a loose calender roller adapted to be rotated by friction by the lap passing between said driving and loose calender rollers and means controlled by said loose calender roller for stopping said driving calender roller when the-tangential speed of said loosecalender roller is less than thetangential speed of said driving calender roller.

2. In a machine for opening textile fibres, a driving calender roller, power means, clutching means for temporarily connecting said power means with said driving calender roller, a loose calender roller. adapted to be rotated by friction by the lap passin between said driving and'loose calender ro lers and means controlled by said loose calender r011- er and adapted to brings said clutching means into the stopping position when the tangential speed of said loose calender roller is less than the tangential speed of said driving calender roller.

3. In a machine for opening textile fibres: a driving calender roller, power means, clutching means for temporarily connecting said power means wit-h said driving calender roller, a loose calender roller adapted to be rotated by friction by the lap passing between said driving and loose calender rollers,.a rotating member loosely mounted upon" the axle of said loose calender roller and movable axially, means for constantly rotating said rotary member at a speed proportional to the speed of said driving calender roller and automatic means for shifting said rotary member axially into engagement with said clutching means and for bringing the latter in the stopping position when the tangential speed of said loose calender roller is less than the tangential speed of said driving calender roller.

4. In a machine for opening textile fibres; a driving calender roller, power means, clutching means for temporarily connecting said power means with said driving calender roller, a loose calender roller adapted to be rotated by friction by the lap passing between said driving and loose calender rollers. a rotating member loosely mountedupon the axle of said loose calender roller and movable axially, means for constantly rotating said rotary member at a speed equal to that at which said loose calender roller would be rotated if it were positively driven by said driving calender roller, a cam member upon the axle of said loose calender roller adapted to rotate in the same direction, and at the same angular speed as the latter and having a surface inclined upon the roller axis cooperating with a lateral projection of said rotating member and yielding means for pi'essii'ig the lateral projection of said rotating member against the inclined surface of said cam member.

5. In a machine as claimed in claim 4, the provision of a one way connection interposed between said cam member and said loose calender roller.

6. In a machine as claimed in claim 3 the feature residing in that saidclutching means comprise a driving member adapted to be engaged by said rotating member when the latter is shifted axially by said'automatic cular and eccenteredportions and a suspended mission means between said power means and said driving calender roller, a loose calender roller adapted to be rotated by friction by the lap passing between said driving and loose calender rollers, a gear wheel loosely mounted upon the axle of said loose calender roller and movable axially, a pinion keyed to the axle of said driving calender roller and constantly engaging said gear wheel, a driven wheel loose upon the axle of said driving calender roller adjacent said pinion, automatic means for shifting said gear Wheel axially into engagement with said driven wheel when the angular speed of said gear wheel is less than the angular speed of said loose calender roller, and means operated by said driven wheel for controlling said trans mission means.

8. In a machine as claimed in claim 7, the provision of means whereby said driven wheel tends to be rotated in the direction contrary to that which is imparted thereto by said gear wheel.

9. In a machine for opening textile fibres, a lower driving calender roller, a loose calender roller movable in a direction at right angle to its axis and driven by friction by the lap passing between said loose and driving calender rollers, a stop motion device adapted to stopthe motion of said driving calender roller when said loose calender roller has a slipping motion relatively to said driving calender roller, a manually actuatable member engaging said loose calender roller and yielding means engaging said manually actuatable member, said yielding means being adapted to urge said loose calender roller towards said driving calender. roller for one position of said manually actuatable member and to become inoperative for another position thereof.

10. A machine as claimed in claim 9, wherein said yielding means comprise a weighted arm having a limited downward stroke and a pressing member connected thereto, said manually actuatable member consisting of a cam member interposed between said pressing member and said loose calender roller.

In testimony whereof I have signed my name to this specification.

PIERRE EMILE LE BLAN.

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