SU39637A1 - Electromagnetic device for spinning watts to cut off the roving when the thread breaks - Google Patents

Description

The currently known electromagnetic devices for spinning vaters for stopping the feeding of a roving when a thread breaks have the disadvantages that they 1, rebuild the design of the exhaust apparatus and the machine itself, are cumbersome, interfere with work, require new operations and complicate maintenance, repair and cleaning of mashina from down. The proposed image is intended to eliminate these disadvantages.

In FIG. Figure 1 shows the layout of the organs of the device in the working position; FIG. 2 is the same, after the thread breaks; FIG. 3-part device; FIG. 4 and 5 show the position of the tongue when working and when the thread breaks; FIG. 6 and 7 are diagrams of the arrangement of the organs of adaptation in another form of execution in the working position; FIG. 8 and 9 is the same when the thread breaks; FIG. 10 and 11 electric circuit diagram (during operation - 1st and 2nd moment); FIG. 12, 13-the same with a break (1st and 2nd moment); FIG. 14-16 details of the device for closing the circuit at the moments of breakage and fillet yarn; FIG. 17 and 18 diagram of the work of contacts and springs; FIG. 19-20 arrangement of the org (291)

NOV adaptations in a different form when the thread is broken, and FIG. 21-22 the same in the working position.

The proposed electromagnetic device for spinning vaters for stopping the supply of a roving when the thread is broken consists (Fig. 1 and 2) of a rod / 2 under the influence of a spring 4 and of a strip 6 attached to the slopes located between the rear and middle exhaust pairs. The rod / 2 in the upper part is equipped with a lever 5 that is rotatably mounted (Fig. 3), which presses the roving against the bar 6, and in the middle with a tongue 75 with a curved edge M, which when lowering the rod / 2 enters between the rear cylinder / 5 and the load roller f6 (Fig. 4). The rod 72 is held in the raised position by the spring-loaded dog JO, which is also the core of the electromagnet 9. When the thread is broken, due to the closing of the circuit, the electromagnet 9 attracts the bark 76, which, coming out of the notch in the rod 72, releases the latter, due to which the rod under the action of the spring 4 lowers, clamps the roving with the lever 5 and lifts the load roller J6 with the latch 73 (FIG. 5). In the end

the stroke of the rod 12 downward, contact 2 moves away with the lever / to the side and opens the current circuit. A prouching is done normally, but at the moment of attaching the thread to the sliver, the lever / down is pressed in to the latter to twist, with the rod 12 rising, the dog 10 falling into the notch, and the rod remains in the upper position. At the same time, the curved edge 14 of the tongue 13 is lowered and the rear load roller 76 is seated on the corrugated cylinder 15, and the contact plate 2 is pressed against the contact 3 (Fig. 1).

FIG. B-13 depict another form of implementation of the proposed device, in which a contact plate 17 attached to a rod 12 is used to turn on electromagnets only at the time of knitting and thread breakage, in order to eliminate the heating of electromagnets and to achieve the minimum energy consumption. 12 Cam 4 serve fixed contacts 7, 2 v (3, 4. Cam 4 is connected pivotally to the rod 7, which serves as a crust for electromagnets A and 5.

When the string of the thread breaks off, the thread conductor, falling down, closes through contact into the circuit with the electromagnet B, as a result of which the mechanism goes to the 1st position (Fig. 7). Simultaneously with the transition to the 1st position, the contact plate 77 (isolated) closes instead of the contacts 3 to 4 contacts / and 2 (Fig. 11), so that the electromagnet B is turned off and another circuit is formed with the electromagnet A for its breakage . At the first moment of the break, the thread guide (connected to the machine body) rises up and closes the circuit through the contact a of electromagnet A, which moves lever 7 to position 2 (Fig. 9). At the last moment of the transition to the position of the 2nd contact plate 77 switches instead of contacts 7 and 2 contacts 3 to 4, and electromagnet A turns off (Fig. 13).

According to FIG. 14-18 for closing the electrical circuit at the moments of breakage and filament of the thread in the proposed device a steel spring is applied, at one end of it

thread guide and the other end attached to the valve base.

The valve consists of a box-shaped base 7 with openings for attachment to the loop and a cut-out for the passage of the thread guide. To base 7 strengthened contact c. A steel spring 5 with a thread guide is attached to the lid 2 of the trough-shaped section and the contact a is placed. The valve and the spring with the thread guide are connected to the housing on one pole. Each of the contacts is isolated and makes it possible to close individual current circuits during an open circuit (Fig. 17) and during operation (Fig. 18).

In the embodiment of the device shown in FIG. 19-22, the rod / 2, which can move in the guides J8, is provided with a bar J9. In parallel with the rod 72, the pawl 20 on the axis 27 is hinged. The dog has one semi-circular end, the other ends with a finger 22, which enters the slot of the end of the lever 7. The lever 7 can rotate on the axis 8, and the other end is equipped with processes 9, 10 Between the processes 9 and 10 of the lever 7, a roller 15 is placed, on which a cam 77 is fixed against each device, rotating together with the roller at a constant speed in one direction. When the thread is broken, the current circuit closes, as a result of which the electromagnet 16 attracts the lever 7, on the process 10 of which a cam 77 acts, which leads it downwards. The other end of the lever 7, ending with a slit, rises up and, moving the finger 22, leads the dog 20 out from under the bar 19, the rod 72 being lowered under the action of the spring 14, and the whole system takes the position at which the roving is clamped and at the same time the rear cargo is lifted roller (Fig. 19, 20).

With the elimination of an open circuit, the current circuit is opened, and the lever 7 under the action of the spring 23 moves along the axis 8, the process 9 is inserted under the cam 77, as a result of which the process 9 rises, and the other end of the lever 7 is lowered, turning the dog 2 so that the bar 7 is overcoming the spring 14, is raised together with the rod 72, which causes the movement of the roving to be restored (while lowering the rear load roller). The entire system in operation occupies the position shown in FIG. 21, 22.

The subject matter of the invention.

Claims (4)

1. Electromagnetic device for spinning vaters for stopping the feeding of the roving when the thread breaks, characterized by the use of a spring-loaded rod 12 located between the rear and middle suction pairs and equipped with: lever 5 for clamping the roving when lowering on the bar 6 attached to the slopes and tongue 13 with a curved edge 14 for lifting the rear loading roller, which the rod 12 is held in a raised position by means of a spring-loaded pawl 10, which enters the notch of the rod 12 and serves as an electromagnet 9, measles in order to release the rod 12 when the current closes. 2. The form of the device according to claim 1, characterized in that a contact plate 17 attached to the rod 12 and fixed contacts /, 2 and 5, 4 used to open the circuit is used to turn on electromagnets only at moments of knotting and thread breakage after the rod 12 has been moved by a cam 4 pivotally connected to the rod 7, serving as a platform for electromagnets A to B. 3. The form of the device according to claim 1, characterized in that in order to close the electrical circuit at the moments of breakage and thread yarns, a steel spring 3 is applied, carrying at one end the thread conductor and attached at the other end to the base / valve equipped with two insulated quince contacts alternately in contact with the steel spring 3. 4. The form of implementation of the device according to claims. 1-3, characterized in that a cam 11 is used to move the rod 12 at times of knotting and thread breakage; a cam 11 is mounted on a rotating roller 15 located along the machine, acting on the processes 9-10 of the rotary lever 7, serving as a switch for the electromagnet 16, moving when it is excited, the spring-loaded lever 7 along the axis 8. to the author's certificate of A. A. No. 39637 Schmitt and I. A. Schmitt fmgg {rig S "Zh; h). w ff