SU93701A1 - Device for stopping, for example, circular arbor machines in case of breakage of threads - Google Patents

Description

The subject of the invention is the improvement of devices for stopping, for example, circular machines with thread breaks.

Apparatuses of the same purpose are known, consisting of a winding spring-loaded fork for translating the drive belt released when the threads break through a transmission mechanism activated by unbalanced thread guides held by the threads.

In these devices, the application includes complex transmission mechanisms that do not provide sufficient reliability of devices in operation.

In the described device, in order to increase reliability in operation and to reinforce the construction, the transmission mechanism is made in the form of a lever holding the shaft of the conversion fork, and a cam turning it freely mounted on the axle shaft and fastened with a ratchet interacting with thread guides when the threads break. .

In an exemplary form of implementation, the described device is adapted to stop a circular poltavka type masking mask, i.e., mashines with a sliding cylinder and

rotating mantels and spools.

FIG. 1 shows a side view of the device described; in fig. 2 is a longitudinal section of the head of the device, but FIG. one; in fig. 3 is a view along arrow A in FIG. 1 on the details of the device.

The described device consists of a conversion fork for the drive belt, unbalanced guide and a transmission mechanism to release the conversion fork when one of the threads breaks.

The circular machine is equipped with a fixed needle cylinder / with tongue needles and rotating from the drive with working 2 and single 3 pulleys mantel 4 and bobbin 5 for spools 6. The central axis 7 of the bobbin is fastened to the head 8, in which the ball pin 9 (Fig. 2) axis 10 is loosely mounted, fitted at the top with a cam O, and below with a guard / 5 rigidly fixed on it and supported from above by a fixed axis 13.

6 nanometers 14 going from the shnul hold unbalanced nitroannavitel 15, which are freely mounted on the axes 16, in the lowered position.

The cam 11 can interact: act with the spring 17 approaching to it (FIG. 3) the condom of the lever 18, which is rotatably mounted “on the fixed axis 19. The second end of the lever 18 locks the stop 20 of the box 21 with the winding spring 23, mounted on the shaft 22 of the fork 24, for transferring the drive belt from working 1kkiva 2 to idle 3.

For manual translation 1 - (lk11} ul: 4 5 "ssbb4k 9N with a pen 25.

Near the cam // set; 1s

| 1 fixed | Springs 26 for deduction jnwan | C v1 non-initial

The position shown in FIG. 3

punty

Non-equilibrium nitrile straighteners 15 are equipped with mobile weights 27 and 28 to change the degree of their imbalance depending on the required yield of the thread.

During the rotation of the 1npool pH1I1Ka together with the head 8 and the thread guides, the latter, under the action of centrifugal force, tend to rise slightly in the direction of arrow B (Fig. 1), however, the tension of the threads keeps them in the lower lowered position. There is no adhesion between the upper ends of the arms of the thread guides 15 and the fixed ratchet 12.

In the case of thread breakage, the corresponding thread guide / 5 is rotated slightly under the action of the centrifugal force, its upper arm engages the ratchet 12 and sets it in motion. The cam 11 fastened to it, overcoming the resistance of the brake arms 26, rotates, acting on the lever 18. The lever 18 releases the stop 20 of the shaft 22. The latter rotates from the action of the spring 23, and the fork 24 converts the driving belt from the working belt 2 to the idle 3, thereby turning off the drive of the machine.

The subject is invented and

A device for stopping, for example, circular machines with a thread break, consisting of a winding spring-loaded plug for translating the drive belt released when the thread breaks by means of a transmission mechanism activated by the unbalanced thread guides, i in order to increase the reliability of the device in operation and its simplification, the transmission mechanism is made in the form of a lever that holds the support of the shaft of the conversion fork, and a cam turning it, which is freely mounted on the axle shaft lnik and fastened to the storage box, interacting with thread guides at the breakage of iiHTeii.

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