SU69155A1 - Device for measuring and recording tissue width - Google Patents

Description

The proposed device is intended to periodically measure the width of a tissue simultaneously with the determination of its length on a measuring machine. It is based on the use of a roller driven by a moving measured tissue.

The peculiarity of the device is that the roller is provided with a longitudinal slot in which a spring lever is installed, which is lowered into the roller cavity under the action of an envelope of its fabric, moved reciprocally along the slot from a two-way worm screw and intended to periodically measure the width of the fabric by fixing output points a lever from under the edges of the fabric, for example, using an electric contact device connected to the lever used to turn on the recording instrument pen.

FIG. 1 shows a schematic of the proposed device, FIG. 2 and 3 show its individual nodes, and FIG. 4 and 5 is another embodiment of the device using electrical transmission from

roller to the recording device, the scheme of which is shown in FIG. b.

The measured fabric 2 moves in the measuring machine and at the same time causes the roller b to rotate, mounted on the fixed axis 3. The axis contained in the roller is a two-way worm screw, equipped with a closed thread (left and right). The screw 7 is put on the screw in such a way that when it is rotated, it will move first in one and then reach the end of the screw in the opposite direction. On the nut 7, the lever 4 is strengthened, with a disk 7 mounted on its free end. The disk has convex digital signs printed on its circumference.

Fabric 2 (Fig. 2) bends around roller 6 on 170-180. The speed of movement of the fabric and the drum are the same. In this case, the disk 7 is transferred in the longitudinal (through) slot of the roller 6 and has the same angular velocity as the roller. The lever 4 is provided inside with a spring, by force of which the disk extends from the slot and is located above the surface of the roller. First the disk is at the right

71

position at point A and stands at zero.

From the start of rotation of the axis of the screw 3, the nut 7 enters the left-hand thread of the screw J. When the roller rotates clockwise, the nut from point A goes to point B. During this period, the fabric relative to the disk / remains fixed, because the angular velocity of the fabric, roller and disk the same.

In its rotational post-motion movement, starting from the edge of the roller 6, the disk 7 touches the rabbit fabric 2, sinks and, due to friction against the fabric, begins to rotate.

The rotation of the disk 7 will continue until it passes across the entire fabric, comes out from under its edge on the opposite side.

After that, the rotation of the disk 7 stops and when with further rotation of the roller 6 the nut 7 reaches the end of the screw J, the surface of the disk 7 will fall under the paper tape 3. In this case, the printing mechanism, not shown in the diagram, will press the ribbon to the surface of the disk, resulting in A number is printed on it, corresponding to the fixed angle of rotation of the disk and the width of the fabric. Then, under the action of the screw nuts with a disk will begin to reverse movement. When the disk 7 reaches the extreme right position, it stumbles on the movable plate S, which rotates the disk until it stops, setting its numbers to the initial zero position.

After that, the direction of movement of the nut 7 is reversed again, which is the beginning of a new cycle for detecting the width of the fabric, and the measurement result will be printed again on tape 3.

In this way, the width of the tcaia will be fixed on the tape periodically with each return-back movement of the disk 7, simultaneously with the measurement of its length, carried out by the measuring machine in the usual way.

FIG. 4-6 shows another version of the device with electrical pe

Reduce measurement results to a recording device.

Instead of a disk with printed figures, a pressure roller 70 was applied in the device, rotating on an axis fixed on lever 4, moved with the help of a nut 7 along a worm screw J, in the same way as described in the first version of the device. With the force of the 72 roller, the roller is pressed upwards, located in the slot of the measuring roller 6, above its surface. The contact plate 77 connected to the valicol does not touch the contacts 7J, which are isolated from each other and fixed inside the hollow lever 4.

The conductors from both contacts with the help of brushes 74 (Fig. 6) slide along metal plates 75 fastened along the roller slot 6. The plates are connected to contact rings W mounted on the roller axis.

The recording part of the device consists of an electrically-magnetic writing mechanism 77 and a clock or other mechanism (not shown in the diagram) that serves to move the chart paper.

The process of registering the width of the fabric is carried out as follows: when the nut 7 moves along the screw 3 in one direction, the roller 10 moves along the slit and collides with the edge of the fabric and is recessed by it. When ETHOL1 closes the contacts 13, closing the circuit of the electromagnetic writing mechanism. The anchor of the latter will be lowered, and the feather mounted on it will record on the moving tape in the form of a straight line. The recording will continue until the roller U, running across the entire width of the fabric, comes out at its opposite edge, after which the electromagnet circuit is open and recording stops.

At each reciprocating movement of the nut 7, the record will be repeated. As a result, the tape will receive a discontinuous straight, the length of the individual segments of which in a certain scale will correspond to the measured width of the fabric. The subject of the invention is a device for measuring and recording the width of a fabric using a measuring roller which is carried along by it and located on a fabric transfer path, characterized in that in the longitudinal slot of the roller a spring f is inserted, which descends into the cavity of the roller under pressure of the envelope of the fabric, is moved progressively along the slot from the two-way screw and designed to periodically measure the width of the fabric by fixing the moments when the lever leaves the fabric edge, for example, when cutting An electrical contact device connected to leverA, using a light switch to turn on the pen of the recording instrument.

FIG. 2

B 5 2

FIG. 3

FIG. four

/,

FIG. five

Yu