SU1002220A1 - Apparatus for unwinding a filament - Google Patents

Description

(54) UNIT FOR THREADING THREAD

one

The invention relates to the textile industry.

A device for unwinding is known. yarn containing fricdion mufgg and driven gear gear mounted on the axis of the packer holder, spring-loaded to the body with a compression spring C1 3

The reliability of such devices is insufficient, because the low-strength yarns cannot transfer enough force needed to move the spring-loaded link.

The goal of isomatics is to increase the reliability of the device.

The goal is achieved by the fact that a device for unwinding a yarn containing a friction clutch and a gear driven gear mounted on the axle of the axle carrier, presented with a compression spring reliant to the housing, is provided with a lever mounted in the housing freely mounted in the axial direction on the axis of the box, the tegliper is attached to the hedge. mi on the side of its surface and fixed immobile from the end of the gear with a fork, encompassing the axis of the packer and the ejector and having protrusions at its ends directed towards the driven side stubble for interacting with bush pins. The axis of the packer-body cantilever is fixed to the ricage. The disks of the friction clutch are mounted on the axis of the package containing l between the latter and the driven gear wheel mounted freely with the possibility of axial movement.

The lever is mounted on the drive axle, and the gear is tightly connected

15 with friction drive drive.

FIG. 1 izofazheno device for unwinding the thread; in fig. 2 - view

20 A in FIG. one.

Claims (3)

The device contains a package holder 1, rigidly connected to the disk of the friction clutch 2, installed 310 in hem 3 and 4, mounted on axis 5, fixed to growl 6. Axis 7 of lever 6 is freely mounted in bearings on the axis of the electric motor, which is parallel to the axis of the package; / w. There is a kinematic pair between the axis 7 of the electrode Bkgagel 8 and the axis of the packer and the holder, which is complete in the form of a toothed cylindrical gear, the leading gear 9 of which is fixed to the drive axis, for example an electric motor, and is in contact with the gear wheel Yu rigidly connected to the disk 11 of the coupling 2 freely mounted on the axis 5 In this case, the clutches form a multidisk friction gear. On axis 5, a sleeve 12 with pins 13 is loosely mounted, which is in contact with a rigidly mounted plug 14 with twists 15, which are directed towards the packer holder. A spring is installed between the base 16 and the lever 6, which squeezes the spring system under the mobile system in the direction opposite to its weight, and also squeezes the friction clutch disks by means of the plug 14 and BTjTUffl 12. The direction of winding the thread in the area between the eye 18. and the package 19 parallel axis of the latter. The device works as follows. The thread is removed from the package, for example, by a thread loader, at a constant speed. In order to reduce the tension of the thread in the process of winding, the linear speed of a portion of the thread converging from the package must coincide in magnitude with the linear speed of movement of the thread gauge. A decrease in the tension of the collapsing thread, respectively, and a decrease in its breakage, is achieved by forced revision of the package. The rotation of the packVaci is transmitted from the drive through a serrated gotlindric drive and a long plate friction gear. Since as the yarn winds off the package, the winding radius decreases, it is necessary to constantly increase the number of turns of the package in order to maintain a constant linear speed of the section of the thread that comes off the package. This is achieved by a constant increase in the friction force between the friction clutches of the friction clutch, the initial clamping of which is set with the initial adjustment of the force of the spring 17 by a nut. The strength of the T15eni between the discs changes the npono 0 tional difference of the force. springs and change the weight of the moving system. As the package diameter decreases, its weight decreases, resulting in an imbalance in the weight of the package and the spring force. As a result, the spring arm rises up to a certain height by force of the spring, and rolling pins 15 of the forks 15 of the fork 14 mix the sleeve 12 to the right, which mixes the gear 10 and compresses the discs of the friction clutch 2, increasing between the last friction forces. Maintaining equality of speeds at different winding radii ensures the elimination of the tension of the creased thread, which reduces its breakage. The use of this device makes it possible to reduce the breakage of the weft threads by approximately 6%. Claim 1. A device for unwinding a yarn containing a friction clutch and a gear driven gear mounted on the axis of the packer holder, a compression spring spring-loaded to the housing, is characterized in that, in order to increase reliability of operation, it has a lever mounted in the housing and freely axially on the axis of the package holder, a sleeve with pins on its lateral surface and a fork fixedly fixed on the side of the gear end, covering the axis of the package holder and having protrusions on its end ah directed toward the driven gears or to engage a bushing pins and pakovkoderzhatel cantilevered axle secured to the lever, the clutch disks are mounted on si pakovkoderzhatel between the latter and the driven pinion gear mounted for axial movement. 2. Device pop. 1, it differs in that the lever is mounted on the drive axle. 3. Device PP, 1 and 2, about tl l and so that knowing, the gear is rigidly connected to the drive disk of the friction transmission. Sources of information taken into account in the examination 1. Copyright from the USSR USSR No. 5О5О42, cl. In 65 And 59 / OO, 1969 (prototype). 6 f6 T 2 fO // l FIG. f 2