US2477106A

US2477106A - Feed roll assembly

Info

Publication number: US2477106A
Application number: US666726A
Authority: US
Inventors: Albert E Winslow
Original assignee: Leesona Corp
Current assignee: Leesona Corp
Priority date: 1946-05-02
Filing date: 1946-05-02
Publication date: 1949-07-26
Anticipated expiration: 1966-07-26

Description

- July 26, 1949. A. E. WINSLOW 2,477,106

FEED ROLL ASSEMBLY Filed May 2, 1946 4 Sheets-Sheet 1.

55 00 a I v o 40 -F76- I 9E- 574 o i T: i i 57 A. E. WINSLOW FEED ROLL ASSEMBLY July 26, 1949.

4 Sheets-Sheet 2 Filed May 2, 1946 7 INVENTOR \jg fi/fier/E. Win {3/0 v m1 ATTORNEYS July 26, 1949. A. E. WINSLOW 2,477,106

FEED ROLL ASSEMBLY Filed May 2, 1946 4 Sheets Sheet 5 lNV ENT OR war/3 Wzhs/ W B mfaw ATTORNEYS July 26, 1949. w s cjw 2,477,106

FEED ROLL AS S EMBLY .Filed May 2, 1946 4 Shets-Sheet 4 IN VEN TOR. fiber/5. We'fls/ow ATTORNE Y s.

is so positioned that the arm 22 may cause the whorl 2| to be swung into engagement therewith when removed from driving engagement with the belt 24. A back-up roll 25 (see Fig. 1) is provided adjacent to belt 24 for supporting the same in position. Rod guides l4 and i5 guide the ring rail lift rod in its reciprocating motion, which rod carries the thread board guide I! and the ring rail [8 for reciprocating movement in the building of the take-up package. A ring is designated 29 and is provided with a traveller 30 through which the yarn passes in being directed to the package on the spindle 2B.

A plurality of yarn ends 3| are drawn from supply packages and each passes through an eye 32 which is mounted on an arm 33, pivoted as at 34, and then the group which are to be plied or twisted together pass through the fixed pig-tail guide 35 and extend about the feed rolls in the unit 36 and thence through the pig-tail guide 31 on the thread board I? to the traveller 35.

The tension of each yarn 3| acting on the guide 32 is such that the arm 33 is held forward, and, as this arm is L-shaped, being weighted as at 38 (see Fig. 3) should the yarn break, arm 33 would move rearwardly or counterclockwise as shown in Fig. 3, about its pivot 34 to press upon the lever 39 (see Fig. 3) which is pivoted as at 48 and has a rod 4| extending downwardly therefrom to enter the feed roll unit 36 which is about to be described.

The feed roll unit 35 (see plan view in Fig. 2 and the sectional view in Fig. 3) has a pair of

feed rolls

42 and 43 mounted on the side of the casing 44 which encloses the operating gear mechanism of the unit. A gear 45 is fixed on a shaft 46 which mounts the roll 42, and a gear 41 is fixed on shaft 48 which mounts the feed roll 43. These two gears are connected together by an idler 49 continually in mesh with both of them. The casing is fixed on the twisting frame and the bearings for the

shafts

45 and 48 are fixed in the casing.

A driving shaft 55 extends through the casing 44 (see Fig. 4) having a bearing 5| in one wall thereof and a bearing in the bushing 52 located in boss 53 in the other wall thereof for mounting the same. This projecting boss 53 provides an inner bearing surface 54 for an eccentric member 55 which has an enlarged opening 56 therein through which the shaft extends. This eccentric member 50 provides a bearing 5? for a gear 58 to rotate about the eccentric member. This gear is driven from the shaft 50 through an arm 59 fixed thereto by set screw 65 and provided with a pin 6| to extend into a slot 62 in the gear 58 (see also Fig. 7). The eccentric member is provided with a plurality of knobs 63 which may be engaged by a rack 64 provided in the edge of the bar 65 which is mounted by means of

rollers

66 and 61 for sliding movement diagonally through the casing 36. As the bar is slid through the casing, the eccentric member 55 is rotated in its bearing 54 so as to move the gear 53 toward and from gear 51 and into and out of mesh therewith.

Acable I0 is attached to the lower end of this bar 65, which cable extends about a drum H (see Figs. 1 and 9) mounted on the end of a shaft I2 which has a bearing at 13 provided in the frame H. The shaft 13 may slide axially of its bearing as well as rotate in the bearing. An enlarged head l4, fixed to the shaft 12, is provided with a slot 15 which receives a pin 15 fixed to the sleeve 11 which encircles the same, while 4 a spring l8 engaging this head tends to slide the shaft 72 inwardly or to the right, as shown in Fig. 9. Any axial movement to the right, as shown in Fig. 9, will also cause a rotary movement so that the drum II will be turned. Thus, tension is applied to the cable 10, tending to draw the rod 65 downwardly through the casing.

As the shaft 12 moves to the right as shown in Fig. 9, its end 19 will engage the abutment 8!) ch the arm 22 and move the spindle 20 from its position engaging the drive belt 24 away from this belt into engagement with the brake 25 to arrest movement of the take-up spindle. The bar 55 is prevented from being drawn downwardly by the cable 10 by reason of a latch which is carried by the bar and which engages a catch 83 on the casing. In order to cause this engagement of the gears, some means must be provided for lifting this bar so as to release the latch 82. In order to provide a trip for the bar 65 for releasing the latch 82, I have provided a wheel (see Fig. 8) on shaft 48 to revolve therewith. ihis wheel is somewhat in the form of a ratchet wheel. Another wheel of similar shape, designated 85, is mounted as at 81 upon a part carried by the bar 55. These wheels are in engagement with each other so that rotation of the Wheel 85 will drive the wheel 85 when the parts are in normal operating position. However, when the arm 4| drops into the casing from its raised position as shown in Fig. 3, to its lowered position as shown in Fig. 8, then this arm will engage one of the ratchet teeth in wheel 86. as shown in Fig. 8, and arrest its movement, while the rotation of the other wheel 85 will, by reason of the inclined surfaces of its teeth, force the rod 65 away from it or will lift the rod at its outer end, because it is confined by its rack teeth in engagement with the pin 63 at its lower end so as to lift the latch 82 free from its catch 83 and thus permit the rod to be drawn downwardly by the cable for the withdrawal of the gear 58 from driving engagement with the gear 41, the parts being moved to the position shown in Fig. 8 by the dot-dash line circle to the left.

I claim:

1. A yarn handling apparatus comprising a spindle for a take-up package, a feed roll for feeding yarn to the take-up package, a gear fixed on the axis of the feed roll, and a second gear eccentrically mounted and movable into and out of driving relation with said first gear and means for driving said second gear. 7

2. A yarn handling apparatus comprising a spindle for a take-up package, feed rolls for feeding yarn to the take-up package, a gear fixed on the axis of the feed rolls, a second gear eccentrically mounted and movable into and out of driving relation with said first gear and means for driving said second gear, and means for moving said second gear out of driving relation with said first gear upon breaking of the yarn end.

3. A yarn handling apparatus comprising a spindle for a take-up package, a casing fixed in position relative to said take-up package, a feed roller carried by said casing for feeding yarn to the take-up package, a mounting movably secured to said casing for movement to and from said feed roller, driving means for said roll having an axis parallel to the feed roller and carried by said mountin and movable therewith for moving said driving means laterally of the axis from a roll driving position to a non-driving position, and means for moving said mounting to move said driving means to a non-driving position upon the breaking of a yarn end.

4. A yarn handling apparatus comprising a spindle for a take-up package, a feed roller for feeding yarn to the take-up package, an eccentric movable mounting, driving means for said roller. secured to said eccentric and movable therewith to and from driving position relative to said roll, and means for moving said eccentric to move said driving means to a non-driving position upon the breaking of a yarn end.

5. A yarn handlin apparatus comprising a spindle for a take-up package, a casing, a feed roll carried by said casing for feeding yarn to the take-up package, driving means within said casing comprising a member having an axis parallel to said feed roll for rotating said feed roll and movable laterally of said axis to and from driving position with said feed roll, means tending to move said driving means from a roll driving position to a non-driving position, locking means for releasably locking said driving means in the roll driving position, and means for releasing said locking means upon the breaking of a yarn to 6 permit movement of said driving means to a nondriving position.

6. A yarn handling apparatus as set forth in claim 3 wherein a feed roll for the yarn is provided on a fixed axis in said unit and driving means for the feed roll are moved into and out of driving relation with said feed roll.

ALBERT E. WINSLOW.

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

UNITED STATES PATENTS