DE1926308U - STOP DEVICE ON STRETCH TWISTING MACHINES. - Google Patents

Description

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Banner Maschinenfabrik Aktiengesellschaft Wuppertal-Oberbarmen

The innovation relates to a parking device that can be automatically triggered when the winder is formed and has a button next to the thread running surfaces of thread-conveying pallets or overflow rollers of draw-twisting machines for chemical threads, especially heavy ones. Titers. . · -.--

When drawing endless threads, it happens relatively often that individual capillaries of these threads as a result of the stretching stress tear and on the rotating stretching godets overflown by them and overflow rollers form so-called winders. This will be then, if it is not possible to shut down the machine in good time, sensitive disturbances in the work process are triggered.

There are a wide variety of parking devices in textile machine construction known, which by means of special Feelinginriehtungen thread breaks or Scan the resulting winder formation and a switching device to stop the machine or the affected twisting or winding station trigger. A roller arranged in the dead space between godet and deflection roller was proposed especially for draw twisting machines, which when reaching a certain pick one is on the godet forming winder is set in rotation by this and thereby actuates the switching device. This arrangement occurs only after construction of a winder on the godet, but not in function with just as frequent winder formation on the deflection roller. Also the winder has to be done first be relatively large before this parking device appeals to. There was also an outside for draw twisting machines. that dead space lying and with two engaging in this dead space lever-like wire brackets provided thread monitor proposed that hereby any winding both on the godet and on the pulley. The function of such wire hangers is

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driving unsafe in rough practical operation. In the end For a pair of rotating tubes on spinning machines, one is pivotably arranged between the two spinning positions and connected to a switching circuit connected button has been proposed, whose offices to close to the thread inlet of the two rotating tubes and, if one of the rotating tubes is clogged, the one that occurs Address ball formation before it is fed in and switch off both the spinning position affected and the neighboring spinning position.

The innovation is based on the task, the Wlcklerbiidüng to the thread-conveying godets or overflow rollers from draw twisting machines to be determined as quickly as possible and with constant accuracy and then to shut down the machine or the affected twisting point immediately. In order to achieve this, it is proposed according to the innovation that the pushbutton is essentially in its plane or parallel to form rotatably mounted Seheibe to this arranged axis, which - in the case of a secantial position to the rotating thread running surface or surfaces - with their tactile edges or - in the case of a tangential Position to the rotating thread running surface or surfaces - with their touch surfaces of the thread running surfaces along their axial Extension is arranged in a preselected small, equal distance and which carries an actuator that, upon a rotational movement of the appealing Sensing disc triggers a mechanical, electrical, magnetic or hydraulic switching device for the shutdown. Included it is advantageous to position the feeler disc with its axis of rotation between the godet and deflection roller around which the running thread is wrapped to be arranged in the dead space delimited by the thread.

By means of a button designed and arranged in this way, Maintain a very narrow air gap between the thread running surface (s) and the tactile edge (s) or tactile surface (s) very precisely, so that the button is touched and twisted with constant security by one or only a few winding turns, whereby it then triggers the switching mechanism. As the axes of pulleys

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and godets are generally not parallel, but rather to each other approach their free end, but on the other hand the disc edges with the pad running surfaces form a narrow gap of as equal as possible Form a clear width, it is further proposed that with simultaneous scanning of both pad contact surfaces the one free edge the probe disk runs parallel to the galette axle and the other free edge of the probe disk runs parallel to the axis. the Touch disk can be essentially flat or bent along its axis of rotation. In doing so, they will not be parallel to one another because of the Roller axles are usually somewhat twisted on one of their tactile sides being. The tactile disc must with its tactile sides and with its axis of rotation be arranged in the dead space between the rollers that all winder formations result in a tactile disc deflection in the same direction of rotation. To ensure a precise adjustment of the pane edges to the overflow areas to ensure the conveying organs and in order to increase the sensitivity of the scanning arrangement even further, it is finally proposed that that the actuator on the sensing disk is set up adjustable and lockable in the direction of rotation and with such a lever length rests against a switching element located outside the dead space, which is greater than the distances between the axes of rotation of the disc contact points. Such an arrangement achieves a considerable with the simplest means translation of the deflection path and thus a safe response with very little curl formation.

An exemplary embodiment of the innovation is schematically shown in the drawing shown.

Show it

Fig. 1 shows the overall arrangement of the storage device, partly in

Cut,
Fig. 2 the disc switch,

Fig. ^ The arrangement during undisturbed normal operation, Fig. 4 the arrangement after winding formation on the deflection roller.

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According to Flg. 1, the thread X is repeatedly around the driven godet 2 and the loose pulley 3 wrapped around. On the base plate 4, which carries the donor elements of the parking device, 1st on the Pin 5 which essentially consists of the support tube 6 with the on it seated two tactile wings 7 and 8 existing tactile disk rotatably mounted. The plate 4 is in such a way not shown in detail Machine frame attached that the button is between the godet and the pulley within the bounded by the thread run Space is located and the free edges of the two tactile wings 7 and 8 from the running surfaces of the godet 2 and the deflection roller 3 the same distance are away. The contours of the two feeler wings are adapted to those of the thread running organs, while at the same time the inclination of the Deflection roller axis taken into account 1st «

As the actuator of the feeler disk, one end of a leaf spring 9 is placed around the support tube 6 and fastened to it by means of a clamp connection, for example a clamp Io together with a screw 11. In this way, the actuator can be adjusted so precisely that the air gap between the feeler edges and the running surfaces of the overflow elements is kept extremely small, and the feeler disc responds immediately and is set in rotation as soon as the winder begins to form. The switching device for the shutdown to be triggered by the actuator can be designed, for example, as a microswitch 12 with the switch plunger 13, likewise fastened on the base plate 4, which is actuated by the other end of the leaf spring 9 with the smallest switching travel. The electrical connection lines are connected to the microswitch in a known manner.

The individual elements of the Abstellvorriehtung can instead of one Base plate can also be attached individually to the machine frame.

In order to also be able to operate the microswitch 12 by hand, a handle can also be used outside of the yarn running area be arranged on the actuator 9 or a separate shift lever, the has an indicated in Fig. 1 nose l4, which when actuated this Shift lever acts on the actuator 9. . .

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According to Pig. 2, the pin 5 carrying the feeler disk is fixed in place the base plate 4 or screwed into the machine frame. The pin 5 can easily be turned off over its axially central part be, so that the support tube 6 of the sensing disc stopped on the two Ends is well guided * An axial displacement of the support tube 6 is inserted into the pin through the head end Screw 15 prevents.

The operation of the storage device is from the Pig. 3 and 4 can be seen. Between the godet 2 and the deflection roller 3 in the space delimited by the thread run, the fasting disc 5, 6, 7, 8 is arranged in connection with the actuator 9. There is no contact between the tactile disc and the thread. The lower free end of the actuator is after Pig. 3 touched by the switch plunger Ij5 of the micro switch 12. The circuit of the switching device is interrupted in this position.

When forming a winder 16 according to FIG. 4, the associated Touching the touch wing edge 8 and imparted a rotary movement to the touch element, whereby the actuator 9 is pivoted against the switch plunger 13 and a current-closing contact is triggered in microswitch 12 who operates the switching device.

The particular advantage of the innovation is to be seen in the fact that by means of the feeler disc, a possible curl formation on both the Galette as well as on the deflection roller without any contact with the running thread with constant accuracy and through considerable translation of increased sensitivity to deflection detected and the switching device to shutdown immediately the machine or twisting unit is operated. The device consists of only a few parts and is easy to assemble and operate adjust and handle and because of their stiff construction too Can withstand a rougher treatment. She can be as

structural unit but also elsewhere on draw twisting machines, for example at the delivery plant or other overflow rollers apply the same advantage.

Claims (3)

- 6 - bag. 585 Gm protective brackets 1. When the winder is formed, the parking device can be triggered automatically with a button next to the thread running surfaces Gal ^ tten or overflow rolls from Streo-twisting machines for Chemical threads, especially heavy titer, characterized in that that the button as a disk rotatably mounted about a substantially in its plane or parallel to this axis arranged be formed, weiehf «· in a secantial position to the rotating pad contact surface (s) - with their tactile edge or - in a tangential position to the rotating pad contact surface (s) - with their contact surface (s ) from the (2 3)
Padenlaufflächeri is arranged along the axial extent in a preselected small, equal distance, and which an actuator:. (6, Τ » ο) disc a mechanical, electrical, magnetic or hydraulic Switching device door triggers the shutdown. 2. Storage device according to claim 1, characterized in that the sensing disk rafts its axis of rotation between that of the current Thread together wrapped galette and pulley in the is arranged bounded by the thread dead space. 3. Storage device according to claim 2, characterized in that Axis of the one free edge of the sensing disk parallel to the GaletteaaiedKSCet (2) and the other, free edge of the feeler disk parallel to the axis (3)
the pulley runs. -T- bag. 585 Storage device according to claims 1 to 3 »4 ^ ^dur g ^ S ^e " indicates that the actuator on the sensing disc in their \ xO) 1 i. ) Direction of rotation is set up adjustable and lockable and with such a lifting length against an outside of the dead space located switching element is present, which is greater than the distances between the axes of rotation of the disc keys.