DE2016170A1 - Locking device for loom use - Google Patents

Description

NORTH AMERICAN ROCKWELL CORPORATION North American Rockwell Building Pittsburgh, Pennsylvania 15222 / V, St.A.

Our sign; N $ 10

Locking device for loom guards

With the demand for an increase in weaving speed * in the case of looms of the rapid shuttle type, it became a real one To ensure that a shooter is kept in the contactor box required, the pressure exerted on a terminal strip of the contactor box in the loom in relation to time for taking up and striking the shooter from the contactor box. That means the pressure on that To enlarge the terminal block or the clamping device if the Protect is received in the contactor box to hold it properly and to prevent its rebound. Farther should be the pressure on the terminal strip at the time of the shot be released to enable the shooter to leave the shooting box unhindered «.

Mechanisms have been proposed to relieve pressure on one Protect by the terminal strip by means of the crankshaft of the loom via the on the swing arm to drive it articulated arm to control transmitted movement for the shop tree. Two such mechanisms are described in U.S. Patents 2,874,727 and 3,012,586.

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These mechanisms perform the intended functions satisfactorily within the limits of weaving speeds of the looms for which they are designed.

Because of the requirement for a further increase in the number of strokes per minute, the operating mechanism for developed the terminal strip of a contactor box for a shooter according to the invention. This mechanism is used a freely moving front terminal block and fewer parts than the known mechanisms and it is an improved one Means for applying and releasing the pressure on the terminal strip in the chronological order when a Protect in a contactor box and when entering one Protection from a contactor box.

The operating mechanism for the terminal strip of the contactor box or for clamping the shooter in the contactor box according to the invention is characterized by a torsion bar, which is held below the contactor box and a pair of spaced apart fixed on the torsion bar has held fingers. These fingers generally extend upward and so are their ends arranged to be in contact with the side of the terminal block that forms the front side of the contactor box «, An the torsion bar is also attached to a lever which hinges to a position adjacent to that of the rocker arm Extends arm of the loom.

A downwardly extending arm is adjustably attached to the front side of the swing arm and holds on to it lower end a follow-up part ,, This follow-up part is arranged in such a way that it maintains contact with the lever end extending from the torsion bar. If the Swing arm carries out its intended activity, the follower part is caused to pivot the lever down to open the torsion bar exert a torsional effect. If the

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Following part goes up, the resilient torsion bar pushes the end of the lever upwards to maintain contact with the following part ₀ This twisting and reversing movement of the torsion bar moves the fingers pointing upwards in such a way that the pressure is applied in chronological order with the cycle of the shot the terminal strip of the contactor box is exercised and then released again.

It is an object of the invention to provide a device which, as a function of the time of the shot blow cycle, first exerts a pressure on the terminal strip and then this again solves.

The drawing shows an embodiment of the invention, namely are:

1 shows a perspective view of one on the loom rocker for their drive articulated arm and the means attached to it for pivoting a lever, which extends from the crossbar,

Figo2 is a perspective and partially sectioned illustration, the torsion bar according to the invention and the shows attached finger for applying and releasing the clamping pressure,

FIG. 5 is a perspective illustration similar to that of FIG. However, the more details of the loom archery box shows and

4 shows a perspective view of the means for yielding Attaching one of the fingers to the torsion bar. '

Fig.1 shows those working with the subject of ΕΓΐίηάμ ^ Loom parts, including a crankshaft 10 and an arm

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The arm 11 provides the usual connection between the Crankshaft and rocker arms, one of which is shown at 12.

A shop boom 13 is in the usual way by the loom swing held, and by means of the swing arm 11, the loading tree is in a known V / eise for beating the weft thread swung back and forth after its entry into the fabric compartment.

According to FIG. 3, a terminal strip 14 forms the front wall of the Contactor box, which also consists of a rear box plate 15 and a rear box plate extension 16.

The shop end of the loom, which is attached to the end of the shop boom, forms the lower surface of the contactor box, as shown at I7. The rear box plate I5 is firmly attached to the end of the shop and it forms the rear wall of the contactor box. The terminal strip 14 forms the front Wall of the contactor box and it is loosely attached to the shop end by means of bolts 18 and 19. The terminal strip 14 has generally L-shaped in cross-section and the bolts 18 and 19 extend through slots 20 and 21, the are located in the foot part of the terminal strip. These bolts or screws are screwed into threaded holes in the shop end I7 and held in a set position by means of lock nuts 22, only one of which is shown in FIG. The terminal strip is slidable on the shop end within the limits of the slots 20 and 21. Additionally have the bolts 18 and 19 immediately below their bolt heads lip-shaped sliding collars 23 and 24, which serve to prevent any possible upward movement of the terminal strip to prevent.

The means of applying pressure to the terminal block 14 to hold a shooter 25 in place when it is in the contactor box enters and release this pressure when the shooter

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BATH ORIGINAL

should leave the contactor box, consists of a torsion bar 26β This torsion bar is below the Arranged contactor box and it extends along the contactor box o One end of the torsion bar 26 is rotatably mounted in an opening 27, which extends into a jn. Holding block 28 is located, which is arranged adjacent to the outer end of the drawer o Im. Distance to the holding block 28 the torsion bar 26 is further held by a pair of spaced apart holding block portions 29 and 30 which on the underside of the shop tree by means of bolts 31 or 32 are appropriate "

Immediately adjacent to the holding block 28, the torsion bar 26 has an upwardly curved first finger 33 "which is fixedly attached to the torsion bar by means of a pair of screws 34" The upper end of this finger is denoted by 35 and it is arranged so that. it comes into contact with a wear plate 36 which formed the outer end of the terminal strip 14 .

This finger also extends upwards and its upper end, designated 39, engages the side of an extension 40 which is attached to the inner end of the terminal block by means of screws 41 <,

A torsion bar lever 42 having an integrally molded hub 43 is attached to the hub on the torsion bar 26 by means of screws 44. Referring to FIG _o 1 and 2, this Torsionsstangenhebel extends with part of its length downwardly and then rearwardly and its end is disposed in a position below and adjacent to the side of the front portion of the swing arm 11 .. '_'_ ;

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The rubber torsion sleeve 37 'is "of the type as it is through manufactured and sold by Glevite Corporation of Milan, Ohio, and consists of an outer sleeve 50 and a centrally arranged inner sleeve 51 with a larger one Length than the outer sleeve, and the rubbery resilient material 52 is in the area between the inner and the arranged outer sleeve and connected to the sleeves. The inner sleeve receives the end of the torsion bar 26 and in the assembled state is the part which, according to FIG. 4, extends over the flexible material 52 and the outer sleeve extends out, clamped in the hub 43 of the torsion bar lever 42, around the latter and the inner sleeve 51 on the To attach torsion bar, the outer sleeve 51 is in the slotted hub of the second finger 37 held by means of screws. This torsion sleeve 37 'allows the second finger 37 deflect, when it is caused by actuation of the torsion bar, a compressive force on the terminal block exerted, and when increased, this compressive force is substantially less than that exerted by the first finger 33 Compressive force.

According to Figure 1, the swing arm side is adjacent to its front End of an adjustable downwardly extending holding arm attached to it by means of a cap screw 4-5 for a follow-up part. A follower part 47 for a lever is means a pin 48 on the lower side of the support arm 46 rotatably arranged and placed in position that he a Contact with the upper surface of the torsion bar lever 42 maintains.

In operation, the store tree is in a known manner by the Swing arm 11 and its connection with the crankshaft 10 and the swing arm 12 swung back and forth. When the front Part of the swing arm swings up and down, the follower part 47 is caused to be the end of the torsion bar lever move in the same way.

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When the torsion bar lever is pushed down, it twists the torsion bar in the direction ^{indicated by the arrow 49 shown in J 1} Xg ₀ ^ and J <, "This movement causes the fingers 33 and 37 to press the terminal block" exercise when the shooter 25 enters the contactor box. ■ ■. ■

When the holding arm and the follower part with the crank arm move up, the spring-back of the torsion bar causes the fingers to pivot away from the terminal block, releasing the pressure on the terminal block so that the Protect can leave the contactor box unhindered »This resilient .turning of the torsion bar causes the end of the torsion bar lever to the top, pivots to a permanent Maintain contact with the follower lever 47.

Another advantage of the means of application and. Solution , of the pressure, on a terminal strip of a contactor box Γη the reduction in wear of the contactor driver and of the various parts for the shot stroke movement.

Claims (1)

Claims Rapid contactor type loom with a contactor, shop tree, contactor box and terminal block that the end of the shop tree forms and with wings on which the shop tree can be moved back and forth and with a Crankshaft and a swing arm for swinging the shop tree back and forth and with means for transmitting a Pressing movement on the terminal strip of the contactor box to move the terminal strip into a position in which the Shooter is detained when he has entered the contactor box, indicated by a rod, by first and second spaced fingers attached to the rod and those with the terminal block engaging means working with the rod to cause the pingers to apply a compressive force to exercise the terminal block and, by other means, to transmit the movement of the swing arm to the first mentioned Means for applying and releasing the pressure applied to the terminal strip in chronological order through the fingers during the recording or entry of a shooter into or out of a shooter box is exercised. 2. Loom according to claim 1, characterized in that the with the rod cooperating means consist of a lever, one end of which is fixedly attached to the rod and its opposite end extends to a position close to the swing arm. 5. Loom according to claim 2, characterized in that the further means for generating the swing arm movement, which are used for the first-mentioned means, from one There follow part that comes into engagement with the opposite end of the lever and through a 'on the swing arm attached holding part is held. 009841/1377 Loom according to claim 1, characterized in that the first finger is firmly attached to the rod and that the second finger on the rod by a flexible Means is mounted so as to result in a pressure movement on the terminal strip with a lesser To create strength versus the strength of the first finger. Loom according to Claim 4, characterized in that the flexible means consist of a rubber torsion sleeve, a central part firmly attached to the rod and an outer part firmly attached to the second finger has ο 00 9841 / $ 1 7 7 * Blank page