US2350308A - Filling carrier transferring mechanism - Google Patents

Description

May 30, 1944. H. H. BURDETT 2,350,308

FILLING CARRIER TRANSFERRING MECHANISM Filed April 9, 1943 FIG. 2 1 10.3

- Y I INVENTOR.

HORACE H- BURDETT ATTORNEY Patented May 30, 1944 Filipino oei gnmn TRANSFERRING MECHANISM.

Horace IL Bu'rdett, Milford, Mass, assignon'to Draper Corporation, 'Hop'edalq-Mass a cor- -poratioh of Maine Applicatio Aprils, 1943, Serial n 482,420

6 Claims; (Cl. 1 39 243) The present invention [relates to .filling replenis'hin'g looms and, as illustrated herein, relates more particularly to means for controlling the operation of mechanism for transferring successive filling carriers to a shuttle during operation ofthe loom.

In automatic looms of the type referred to above, the filling carriers are transferredjfrom the holder or hopper to the shuttle without interrupting the operation of the loom. The transfer operation is performed as the lay. approaches front center and takes place in a very short period of time. Such rapid operation, which is-performed suddenly and almost instantaneously, necessarily entails considerable strain and shock, particularly in stopping the transfer mechanism at the end of-its transferring-movement. It has not been-practical to provide a solid stop to limitmovement of the transfer mechanism because of the highspeed of the parts.

Stopping of the transfer mechanism has, been effected by the use of a tension spring which operates also to return the transfer mechanism to its initial position-andalso operates to rotate the bobbin holding mechanism to present another bobbin or filling carrier into transfer position. -A very heavy spring has been necessaryin order to stop the mechanism at a predetermined desired point. Such a heavy spring, however, is objectionable since it causes undue wear on the parts.

One object of the presentinvention, accord- .ingly, is to provide means forstopping the transfer mechanism by the use of whichvthe above mentioned objections will be overcome.

In accordance with this object, one feature of the invention comprises a transferrer movable for transferring successive filling carriers from a holder and resilient means arranged to resist movement of the transferrer only during the latter portion of its transferring movement and forming a stop to limit operating movement of the transferrer. As illustrated, the stop member comprises a block of resilient material, preferably rubber, which is adjustably secured in position on the transferrer. This construction is effective and stops the transferrer without undue shock and strain on the parts. The construction also permits a lighter tension spring to be used and, consequently, wear on the transferrer parts is substantially reduced.

With the above and other objects and features in view, the invention will now be described drawing which illustrates apreferred embodilTlGl'ltthQIGOf and in which:

Fig. 1 is a view in side elevation,lpartly,.in section, showing the transferqmechanism inoperated position; 7 j

Fig. 2 is a detail view on anenlarged scale" of a'po'rtion of a trans'ferrer having a resilientJadjustable stop applied theretoi and" I Fig. 3 is a sectional view takenalong the line III-III of Fig.2. 1

The loom frame Ill-is of usual construction; and is "p'io'videdwith a"hopper'stand vI 2 on which' is mounted a rotatable hopper of, which only the butt, end disk I4 is showrnv The disk-1'4 is provided with the usual bobbin seats IB- and a ratchet i8 is fixed to the 'disk 14 in the usual manner. The ratchet ismtatedste EQy-step to move's'uccessive filling carriers into transferring position. I

,The 't'ra'nsferrer 122 is of usual constructiona'nd is supported for. rocking" movement ona stud 2 l fixed to the hopper stand l2. An arm 26 projects downwardly'from'thefhub281of the transferrer 22 and is pivotally connected at its lower end'to'a latch finger 30, the end 32, of which is; arranged, upon transfer or replenishment of filling, tobe raised into the pathlof' movement of abunte'r34 carried by the lay 36. 'Afee'dpawl o'fusilal construction is carried by the, transferrrona pin llland'op'erates to rotate th'e butt-end disk l4 when the "transferrer 22,, is returned to {its initial or inoperative position under thefl infiuence of I the usual torsion spring 42.

When a filling carrier 20 is in transferringposition and substantial exhaustion of the ffillin'g on a carrier in the shuttle 43 has'been indicated by suitable feeling mechanism, the bunter 34 will engage the latch finger as'the laymoves into its forward position. Thus, the depending arm 26 will be swung rapidly in a clockwise direction and causes the transferrer 22 to be swung rapidly downwardly to move a filling carrier 20 out of a seat I6 in the disk VM and down into engagement withthe empty or substantially empty with particular reference to the accompanying filling carrier 20, and forcing said last mentioned filling carrier out of the shuttle. As the lay begins its rearward movement, the transferrer begins to move upwardly under the influence of the spring 42. The feed pawl 38 moves with the transferrer and rotates the disk l4 ina direction to move the next filling carrier 20 into transferring posi-' tion.

The parts described above are of usual construction and operate at the high speeds usual in modern high speed looms. The transferring of the spring 42 is not sufiicient to prevent overthrow and, consequently, the worn parts must be replaced. v

Downward movement of the transferrer 22 is limited in the present construction by a resilient member 44 which is secured to the transferrer. 22 and engages the top surface of the front box plate 46 of the right hand shuttle box. The

transferrer 22 is provided with a ledge or shelf 48 which is provided with a threaded opening 50. The resilient member 44 comprises a block 52 -formed of rubber or othersuitable resilient material which is bonded to thlower face of a disk 54 and-which is provided with an upwardly ex- "tending threaded shank'56 threaded into the opening 50. The resilient member is locked in adjusted position on the transferrer by the washer and locknutlifl,

The resilient'stop member 44 acts not only to cushion the stopping of the transferrer 22 but also acts to aid in the return'of the transferrer 22 to its initial position; The resilient stop member is assembled'on the transferrer 22 and is so adjusted that the block 52 is compressed against the top'of the front box plate 46 to an extent sufiicient to overcome the pressure of the transferrer and to stop the transierrer in the proper positionfWhenthe lay begins its rearward movement, the'pressure on the transferrer is released and the expansion of the rubber stop member 44 initiates the'feeding movement of the feed pawl 38.

, torsion spring "can be reduced which will re- Consequently, the tension of the duce wear on the feed pawl and the teeth of the riers from the holder, a spring for moving the transferrer in the other direction, a stop, and

resilient means carried by the transferrer and -arranged to engage the stop, as the transferrer approaches 'm'ent.

2.In a filling replenishing loom, a holder for the limit of its transferring moveaseries of filling carriers, a transferrer movable holder fora series of filling carriers, a reciproto transfer successive filling carriers from the holder, a member adjustably secured to the transferrer, and a resilient member fixed to the adjustable member and arranged to resist movement of the transferrer during only the latter portion of its transferring movement.

.3, Inna, filling replenishing loom, a holder for 1a series o f ;fi1ling carriersja transferrer mounted for movement to transfer successive filling carriers from the holder, a shuttle box, and adjustable resilient means mounted on the transferrer and arranged to engage the shuttle box as the transferrer approaches the end of its transferring movement to limit the movement of the transferrer.

the transferrer, and a resilient pad fixed to said adjustable means and arranged to engage the front box plate of the shuttle box as the transfe'rrer approaches the end of its transferring 'movement to limit the movement of the transf errer.

5. In a filling replenishing loom, a rotatable holder for a series of filling carriers, a reciprocating lay having a shuttle box on one end thereof adjacent said holder, a fiy shuttle received in said shuttle box, a transferrer mounted for movement to transfer successive filling carriers from said holder to said shuttle when the supply of filling on-the filling carrier in the shuttle is substantially exhausted, adjustablemeans mounted on the transferrer, and a resilient'member fixed 'to said adjustable member and arranged to engage said shuttle box as the transferrer approaches the end of its transferring movement. 6.. In a, filling replenishing loom,- a rotatable eating lay, a shuttle box on the end of said lay adjacent said rotatable holder, a shuttle aranged to be picked across said lay and into said shuttle box, a transferrer associated With said holder and-mounted for movement to transfer successive filling carriers from said holder to said shuttle when the supply of filling on the filling .carrier in the shuttle is substantially exhausted,

sition, and a resilient rubber cushion fixed tosaid -member and arranged to engage the front wall ofxsaid shuttle box as the transferrer approaches the end of-its transferring movement to limit the movement thereof.

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