SU1564541A1 - Pickup for monitoring uneveness of semi-finished products of weaving - Google Patents

Abstract

The invention relates to the textile industry, in particular, to means of checking the unevenness of the semifinished products of spinning, and it allows to increase the accuracy of control while reducing the time required. The sensor for monitoring the unevenness of the semi-finished products of a spinner contains a housing in which an emitter and an oscillation receiver are located on both sides of the forming channel, made in the form of an open groove, and a transverse movement limiter mounted on the body with a control mechanism made in the form of a two-arm. one arm has a limiter bar, the cross-sectional shape and length of which correspond to the cross-sectional shape and the length of the forming channel, the other arm of which is spring-loaded housing and pivotally associated with the core of the electromagnet and spring-loaded to the housing of the indexing double-arm lever pivotally associated with the other of the electromagnet core. 3 il.

Description

The invention relates to the textile industry and can be used to control the unevenness and linear density of a semifinished product, for example, on a tape machine.

The purpose of the invention is to increase the productivity of the control.

In Fig.1 schematically shows the proposed sensor; figure 2 - section aa in figure 1; on fig.Z - view B in figure 1.

The sensor for monitoring the unevenness of the semi-finished products of the sponge has a body 1 with a forming channel 2, an emitter 3 and a receiver 4 of ultrasonic vibrations mounted on both its sides, as well as a limiter

5 transverse displacements of the material under control and the mechanism for controlling the limiter 5, which has a double-arm lever b, which, on one shoulder, carries the bar of the limiter 5 and is spring-loaded with the other arm to the body 1 by means of a spring 7 a spring 9, and two electromagnets 10 and 11 mounted on the housing, the cores 12 and 13 of which are connected respectively to the two-arm lever 6 and the latch 8. To enable manual operation of the electromagnet you have stocks 14 and 15.

Channel 2 has the shape of an open groove (Fig. 1), and limiter 5 is transverse SD

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The displacements are made in the form of a plan (FIG. 3), the shape of the cross section of which corresponds to the shape of the length of the open groove of the housing 1.

The sensor works as follows. Ultrasonic oscillations emitted by radiator 3 pass through channel 2 and fall onto receiver 4, which converts them into an electrical signal. Since between radiator 3 receiver 4 in the forming channel 2 a controlled fibrous ribbon (semi-finished product) is installed, which can have different linear density because of this, the intensity of the incoming oscillations on the receiver 4 will also not be the same. Therefore, the electrical signal from the receiver 4 will have a different value. This makes it possible to judge the parameters of the semifinished product located in channel 2.

In case the forming channel 2 is open, i.e. one of the walls is missing; when the semi-finished product moves in the longitudinal direction 1 along channel 2, there can be an offset of the semi-finished product in the transverse direction, i.e. it may partially go beyond channel 2. This will lead to a change in the amplitude of the signal perceived by receiver 4, i.e. to measurement error

The limiter 5 transverse movements serves to prevent the release of the material under study from the measurement zone, i.e. channel 2. In the initial (open) state, the bar is held by the spring 7. After charging the material into the channel 2, the electromagnet 10 is turned on, while its core 12 rotates the double-arm lever 6 and the bar enters channel 2. In the closed position, the double-arm lever b is held in place 8. After the measurement is completed, the electromagnet 11 is turned on, the core 13 of which turns the lock 8 and releases the double-arm lever 6, while the bar

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The delimiter exits channel 2. The material is removed from it. The measurement is over.

During technological equipment refueling, the limiter can be operated manually, for this purpose there are electromagnet rods 14 and 15 connected to the cores. The opening of the channel is made by pressing the rod 15, closing - the rod 14.

The use of the proposed sensor makes it possible to increase the monitoring performance by reducing the time for preparing for measurements and increasing their accuracy.

Claims (1)

Invention Formula The sensor for monitoring uneven ™ semi-finished products of a yarn, comprising a housing with a forming channel in the form of an open groove, on both sides of which are an emitter and an oscillation receiver, and a transverse movement limiter of the semi-finished product, characterized in that, in order to improve the accuracy of control while reducing the time costs, It has a mechanism for controlling the material transverse movement limiter mounted on the body and consisting of a two-armed lever pivotally mounted on the body and springing about to it. with a lower arm, a retainer placed with the ability to interact with this lever arm and spring-loaded to the body, and two electromagnets, the cores of which are separately hingedly connected to the two-arm lever and the retainer, while the transverse movement limiter of the semi-finished product is fixed on the free arm of the double-arm lever and made the slats, the cross-sectional shape and the length of which correspond to the shape and length of the open groove of the housing. Close 1 Aa 7 FIG. 2 Fig.Z Zidb