SU494878A3 - Thread accumulator - Google Patents

Description

(54) DEVICE FOR NARROW FILLING

photocell located inside the drum, with through holes in the side wall of the drum.

FIG. 1 shows in perspective the proposed device; in fig. 2 is a section along A-A; FIG. one; in fig. 3 - the same, but a different position of the probe; in fig. 4 is a section according to BB in FIG. 2; in fig. 5 is an electrical circuit diagram for adjusting the amount of nitp accumulated on the drum; in fig. 6- embodiment of the mechanism for stopping the yarn guide with excessive accumulation of the thread on the drum; in fig. 7 is an embodiment of a yarn guide; in fig. 8 shows an embodiment of the device; in fig. 9 is a flow pattern in the device; in fig. 10 is a section along BB in FIG. 9; in fig. 11 - part of the yarn guide, side view; in fig. 12 is an embodiment of the device.

The device for storing the yarn contains an intermediate accumulator, made in the form of a hollow drum 1, fixedly mounted on the holder. The holder is a tubular element 2 extending through a central hole in the base 3 of the drum 1 and provided with a flange 4 for rigid attachment to the base. The tubular element 3 and the drum 1 can be made as a single element. In the base 5 of the drum there is a hole 6, which together with the cavity 7 of the drum and the hole 8 of the tubular element forms a channel for the passage of the thread 9.

Part of the base 5 on the border with the hole 6 is rounded. The drum I at the base 3 passes into the annular conical part 10. The device also includes a yarn guide consisting of a drive disk 11, which is located on the same axis with the drum 1, and an organ for winding the thread on the drum, which is rigidly connected to the disk. The organ for winding the yarn on the drum may be made in the form of a cylindrical holder 12, covering the drum with a gap and located coaxially with it. The yoke and drive disc 11 are rotatably mounted with respect to the drum 1. The yoke 12 carries a series of naming eyes, and the peephole 13, located at the entrance of the thread in the thread guide, is mounted on the outside of the yoke, and the eyes 14 and 15 are made in the form of holes clip

To ensure the rotation of the drive disk 11 and the holder 12 fixed on it, a gear 16 is in position with a bristle 17 mounted on a shaft 18 located in the support 19. Electromagnetic clutch 20 connects the shaft 18 with the shaft 21 carrying the pulley 22.

The organ for winding the thread onto the drum can also be made in the form of a rod element 23 with an axial bore 24 for passing the thread. The rod element is radially spaced from the drum, is located parallel to its axis (Fig. 7 and 12) and has a nitenanavl yupl, ny peephole 25.

The device also contains the mechanism of the osteovy yarn guide prn excessive accumulation of the thread on the drum. There are various options for the implementation of this mechanism. According to one of them, the stop mechanism of the yarn guide comprises a switch 26 and a probe 27 simulated inside the drum. The probe 27, installed with the possibility of revolt and axis 28 and equipped with an electrically wavy shank 29, enters the hole 30 made in the drum 1.

The electric circuit includes a source of 31 direct current, resistance 32, 33 and 34, kondeiser 35, transistor amplifier 36

and a relay 37 coupled to an electromagnetic clutch 20.

In another embodiment, the mechanism for stopping the yarn guide includes a light source 38 and a photocell 39. This is in the side

The holes 40 and 41 are made in the drum wall, the axes of which intersect at point 42 and the inner surface of the cylindrical casing 12. Due to this arrangement of the holes, the light rays from the light source 38

get on the inner surface of the cage and, reflected from it, on the photocell 39.

The device works as follows. Drink 9 of the feeder (in the drawings, and it is shown)

It moves through the tensioning device 43 and the guide 44 to the rotating yarn guide. Here, the thread passes through the thread guiding eyes and is wound on the drum 1. The resulting threads of the thread gradually move upward from the annular conical part 10. In this case, instead of the annular conical part, other means may be used on the drum, allowing for unimpeded movement of the threads of the thread up the surface of the wire. Thus, a drum may be provided with a arrangement that is movable and, when it engages with the thread, cuts the progress of the windings formed along the surface of the drum. The removal of the thread from the drum 1 passes through the hole 6, the cavity 7 and the hole 8 in the tubular element. According to FIG. Threads 1 and 2, the thread on the drum, go along the outer surface of the drum by direction of

its base 5 and, changing the setting, enters through the opening 6 and the cavity 7 into the opening 8, from where it is fed to the needles in the filling machine. Drink can pass through the hole 24

in the core element 23 and out of the eye 25. The rod element 23, when rotated, also provides the winding of the thread and the drum I. According to FIG. 9 and 10, the thread converging from the drum first passes through the peephole 15 in the holder 12, and then enters the opening 6. With this construction, the holder only produces the winding of the thread on the drum, but also unwinds it at the same speed for feeding at

drum cavity. The core element 23 is advisable to be provided with an internal eyelet 45, thereby creating a forced feed thread. This prevents tangling of the winding and unwinding threads. During operation of the device, the minimum and maximum number of threads accumulated on the drum is automatically controlled. In the case when the hole 30 in the side wall of the drum is not closed by the threads of the thread, the probe 27 will pass through this hole, partially going beyond the limits of the drum. In this case, the shank 29 comes into contact with the switch 26. As the thread is wound on the drum and the turns are moving from the annular conical part 10 up along the drum surface, the turns will close the hole 30, thus acting on the probe 27. As a result, the probe will turn to the left (according to the drawing ), and the shank 29 will come out of the contact with the switch 26. When the thread turns away from the drum and opens the hole 30, the probe 27 will be deflected to the right and take the initial position, while restoring the contact between the shank 29 and the switch 26. With the closure of the switch-to-switch pair ensures the passage of current from the positive electrode of source 31 (FIG. 5) of direct current through limiting resistance 32 and charged capacitor 35 to the negative electrode of source 31. There is also a current path created through resistance 33, a transistor amplifier 36 and back to the negative electrode of the DC power supply 31. This current passing through the trigger circuit of the transistor amplifier 36 makes the conductor conductive for the next passage of current from the grounded positive electrode of the source 31 to the grounded terminal of relay 37. and then through the transistor amplifier 36 back to the negative electrode of the DC source. The excitation 11le arises and closes a pair of contacts 46 for energizing the electromagnetic clutch 20. At the same time, the orgap for winding n-1-pa the drum starts to wallow around the drum for winding an additional filament. With the continuation of the winding of the additional thread, the turns formed on the drum gradually reach the hole 30, pressing the probe 27 into the drum and causing the switch-switch pair to open. However, the conductance of the transistor amplifier 36 is not immediately interrupted after the opening of the switch-to-switch pair, since the charge on the capacitor 35 will transfer to the trigger circuit of the transistor amplifier to support the passage of current through it and through the relay 37 for a set period of time. During this period, the electromagnetic clutch 20 will remain energized and the organ for winding the thread on the drum will continue to wind. Thus, the electrical circuit creates a delay time that determines the amount of pitch wound on the drum. The time delay can be controlled by variable resistance 34. The light rays emanating from the light source 38 are reflected from the inner surface of the shaft for driving the drum and fall onto the photocell 39 to excite the latter. When the additional coils wound on the drum 1 close the hole 41. the photocell will be non-conductive. The thread-guiding peephole can communicate with the slit 47 extending to the periphery of the yoke, which allows the thread to pass through the peephole without breaking it, while the slot opening is closed by the stopper 48 after insertion of the thread. Subject and use of Clause 1 .. A device for pacapliping a thread, for example, in a masking device, containing an intermediate accumulator made in the form of a zero drum fixedly mounted on a holder, a yarn guide rotatably and carrying guides imitation eyes, and the yarn guide stop mechanism with excessive accumulation of the thread on the drum, characterized in that, in order to maintain a stable tension of the thread, the drum holder is a tubular element rigidly connected to one of the bases of the drum t, which hole communicates with the cavity of the drum, while the other base of the drum, an opening forming a cavity together with the drum and the opening of the tubular element passageway nrohoda yarn unwound from the drum. 2. The device according to claim 1, characterized in that the yarn guide consists of a drive disk located on the same axis with the drum, and an organgatta rigidly connected to it for winding the thread on the drum. 3. The device according to claim 2, which is designed so that the organ for feeding the drum is made in the form of a cylindrical holder, covering the drum with a gap and located coaxially with the latter. 4. The device on pi. 1-3, characterized in that one of the guide eyes, located at the entrance to the yarn guide, is mounted on the outer side of the clip, and the remaining eyes are made in the form of holes in the clip. 5. The device according to claim 2, characterized in that the organ for winding the thread on the drum is a core element with an axial hole for the thread to pass radially from the drum and parallel to the axis of the latter. 6. The device according to claim 1, of tl and h and Hi e e s

in that the part of the base of the drum at the border with the hole in it is rounded. 7. The device according to claim 1, characterized in that a through hole is made in the side wall of the drum, and the yarn guide stop mechanism with an excessive accumulation of thread contains a switch and a probe mounted in the drum, which enters the hole in the side wall of the drum and turns

the action of the turns of the winding thread with the impact on the switch.

8. The device according to PP. 1 and 2, characterized in that the mechanism for stopping the yarn guide with excessive accumulation of the thread contains a light source and a photocell located inside the drum, while through holes are made in the side wall of the drum.

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