SU519513A1 - Device for constant feeding of the thread into the loop-forming system of the circular filling machine - Google Patents

Description

pulls on itself an additional amount of threads in the thread. Removing the wound coils in the axial direction is not possible due to the presence of teeth on the comb. The constant kinematic connection of the thread-giving cylinder with the drive of the machine does not allow it to scroll when it is formed along the following coils, which also reduces the labor capacity. The purpose of the invention is to ensure uniformity of tension of the thread in the transitional speed mode of the machine, in particular when it is started, and to increase labor productivity when servicing it. The goal is achieved by the fact that the means for non-radial rotation of the supply-pressure cylinder is installed with the ability to interact with the surface of the thread-generating cylinder in the zone of the first turns along the thread and in the zone free of thread, and the folder spreading out in the form of a smooth rod. The means for transmitting rotation to the thread-delivery cylinder is made in the form of an endless belt. The smooth rod is installed with the possibility of expelling the angle of its inclination to the axis of the thread-feeding cylinder. The device has a lever for opening an endless belt with a thread-supplying cylinder. In one of two fixed positions. The endless belt has perforations, and the nano-bearing cylinder is the pins radially mounted in it. FIG. 1 shows the proposed device, side view; in fig. 2 - the same, top view; pas figs. 3 is a section along A-A in FIG. 2; in fig. 4 is a section along BB in FIG. 1. The device consists of a thread-feeding cylinder I (see Figs. 1, 3) and a fixed carrier 2 fixedly along its axis at some small angle to it, as well as an endless drive belt 3 enveloping the thread-supply cylinder 1. Belt 3 is kinematically connected driven by a needle cylinder and receives movement from a central drive bar (not shown). The device is equipped with thread-guiding elements 4-7, sensors 8 and 9 of the automatic stop of the machine when the thread breaks, the niten resident of the disk-shaped tin 10 and the warning lamp 11 and mounted on the housing 12, which bolts 13 to the frame of the mask 14. The contacts 15 turn the device into an electric chain of the machine through the contact tires 16. The thread-supplying cylinder is made in the form of a shell 17, having acute-angle protrusions 18 (see Fig. 4), which is fixedly glued to the flanges 19 and 20. The flange 20 serves as a housing for the schoolgirl 21, which is mounted on the axis 2 2. The axis carries a spacer sleeve 23, passes through the opening 24 of the housing 12 and is screwed to the housing by a screw 25. At the other end of the axis 22, a block 26 is mounted, which contains an automatic machine stop sensor 9 with a spring-loaded probe 27 and a signal lamp I. The block 26 is connected to the network of the machine with wires 28, laid through the inner hole 29 in the axis 22. The screw 25 carries a pivot arm 30 with sector 31, the outer surface 32 of which is coaxial with the surface of the thread-supply cylinder 1. The lever 33 is pressed into the handle 33 (see FIG. 3) with a hole 34 in which a spring 35 and a ball 36 are installed. Recesses 38 are made in case 12 (see Fig. 2) and stops 39 and 40 are fixedly mounted. Lever 30 can be rotated to occupy two fixed positions defined by stops 39 and 40. The thread-feeding cylinder 1 is equipped with radial-set pins 41, and the driving belt 3 has a perforation 42, which includes pins 41 when the belt bends around the surface of the thread-giving cylinder. Iidirector 5 (see phpg. 1) is mounted on a spring-loaded lever 43, the rotation of which is limited by stops 44, 45, made in one piece with the rod with a ring 46 mounted rotatably relative to the housing 47 of the sensor 8. Nastekladchik 2 has a lever 48 with a hole 49 and mounted freely on the axis 50 with the possibility of rotation relative to it. Screws 51, 52 fasten the clamp in the desired position, at which it forms a certain small angle (0.5-5 °) with the axis of the nitrifying cylinder 1. The device operates as follows. When threading the yarn, the lever 30 is turned to the 30i position (Fig. 2) and the belt 3 is retracted to the Zj position, in which it does not interact with the thread-giving cylinder 1. The thread is threaded through the thread guide 4 (see Fig. 1), the thread-like nitrate 10 The thread guide 5 and winding the coils onto the thread-feeding cylinder 1, rolling it over, and the thread spreader 2, then passing the thread through the thread guide 6 and 7 and directing it to the zone to the lower. The spring loaded probe 27 is set so that when the tensioning thread is in, it moves from position 27i to position 27. Support 44 is set so that directional guide 5 animates the position for feeding the thread (first turn) to the area of interaction of the belt with the thread-giving cylinder 1. Movement of the belt 3 is reported rotation of the supply cylinder 1. In this case, the 2 turns of thread around the thread cylinder and the spreader automatically move along them. The nod is tensioned by an action. The spring-loaded lever 43 occupies the upper position in which it interacts with the stop 44. The thread of the first turn of this pH falls under the belt 3, the rest

The coils are laid out evenly with a constant pitch along the surface of the thread-supplying cylinder. The appropriate selection of the angle of the thread stacker 2 to the axis of the thread-supplying cylinder set the thread turn pin.

After the automatic layout of the threads of the thread, two zones LI and Lj are formed on the surface of the thread-supplying cylinder (see Fig. 3), the first of the fir is free of the thread, and the threads of the second are located. The drive belt 3 bends around the thread-feeding cylinder 1 in the LZ zone, where the first coils (one or two) are located along the thread, and in the zone L., free from the thread. The interaction of the belt 3 with the thread-feeding cylinder in the zone free from the thread ensures its adhesion to the surface of the feed-cylinder and the transfer of the necessary moment for the thread-feed system. The interaction of the belt with the thread in the area of the first turns of it on the feed-feed cylinder ensures that the thread is pinched and prevents it from slipping relative to the surface of the thread-feeding cylinder.

The smoothing of the pemn 3 together with the pinched threads of the thread along the forming threadbelt cylinder is prevented by means of pins 41. which engage with the perforation 42 of the belt 3.

If drinking the first turns has a maximum tension of 1, then the thread of subsequent turns as a result of pinching it between remts 3 and the surface of the thread-supplying cylinder 1 has minimal tension, which ensures uniform tension of the thread and a constant feed rate to the zone in the underlay with a minimum amount coils, necessary for the prevention of disruption of the web when the machine is interstated, in the event of thread breakage.

At the same time, when changing the speed mode of the device during the start-up of the machine, the coils of the thread, which are locked between the belt and the surface of the thread-forming cylinder. located in the zone Lo (figs. 1, 3), are deformed, due to which the dynamic absorption of the drink is reduced.

If the thread breaks in the section of the conductive system located prior to the thread-feeding device, sensor 8 is activated (lever 43 occupies it more than 43i), and the line stops, and the selected thread reserve is sufficient to prevent the web from breaking or the accumulation of scrap.

When the thread breaks in the zone in the low, the sensor 9 is activated and the spring-loaded Hivn 27 will take the position 27 t. In this case, the machine also stops. At the same time, during the run-out of the machine, the insulating cylinder 1 winds additional threads on itself, which can be removed axially by mixing them along the folder 2 and the thread-feeding cylinder.

When the sensors 8, 9 are activated, the signal lamp 11 lights up.

Thus, the use of the proposed device allows to increase the uniform tension of the thread, especially in the transition

mode of operation of the device, and increase productivity.

formula of invention

20

Claims (5)

1. Device for the constant supply of iichi to the looping si: that circular machine, containing thread guide, yarn handler. cantilever mounted along the axis of rotation, and the supplying guide, and the means for transmitting the gate to the threading cylinder from the needle cylinder of the machine. characterized in that, with spruce to ensure uniform tension threads in transient high-speed mode of operation and service, the speed for transmitting the rotation to the threading chain of the LStaiovleio with the possibility of interaction with the surface of the thread of the sub-chain the zone where the first coils are located along the thread and in the zone that is free of nnti, and the needle folder has a smooth rod. 2. The device according to c. 1, characterized by That is, the mechanism for transmitting rotation to the thread under the cylinder is made in the form of an endless belt. 3. The device on n. 1, characterized by telts, that the adherent rod is installed with the ability to change its angle of inclination to the axis of the thread line; it is the original cylinder. 4. The device according to claim 2. characterized in that it has a lever for opening the endless belt with the thread-bearing ciliidrome in one of two fixed positions. 5. Device on PP. 1 and 2. characterized in that the beskiecheichy belt has perforations, and the thread-bearing cylinder - pins, radia, pno installed in it. G6 5 t-6 fuz i 51 8 I f / 2 in t6 t6 fu 2 // four Iff hz  In zone B 18 P Rig.