SU541904A1 - Pedal regulator of the spoiler - Google Patents

Description

one

FIELD OF THE INVENTION The invention relates to textile machinery and concerns a cotton weaving machine.

Known pedal regulator of the scutching machine, containing the summing lever and the mechanism of additional adjustment of the thickness of the canvas during its production, having an eccentric in contact with the summing lever CllThere is no device for timely elimination of the drift of the tex at the beginning and end of the development of the canvas, and it means that the smoothness of the canvas is not required.

In the proposed controller, to determine the beginning of the drift, which may be different for different types of fiber being processed, a canvas length sensor is used, which contains a pulse counting relay connected with the flatting rollers of the scutching belt and the eccentric of the additional mechanism for adjusting the thickness of the canvas.

A predetermined number of pulses is determined by experimentally testing many canvases for unequalness from the beginning and from the end of the production of the canvas and deriving average data from these observations.

FIG. 1 shows a diagram of the pedal controller; in fig. 2 - eccentric in contact with the summing lever; in fig. 3 is a diagram of a flag attachment; in fig. 4 technological scheme of the scutching machine; in fig. 5 is a kinematic diagram of a scutching mask; in fig. 6 - electrical circuit.

The pedal controller of the scutching machine (Fig. 1) contains a pedal cylinder 1, to which the pedals 2 are pressed with the rods 3. An earring 4 is put on the bar 3.

Earrings in pairs are connected by rocker arms 5, which are also in pairs connected by rocker arms by means of earrings. Suspension 6 is put on the middle part of the last big yoke, connected with summing

lever 7. The connection of the rocker arms and earrings hinged. The system of earrings and rocker arms constitutes the summing mechanism of the pedal regulator. On the summing lever 7 mounted mobile load 8, employee

to control the degree of pressure

fiber passing between the pedals 2 and the pedal cylinder 1. The summing lever 7 is connected via link 9 to lever 10 connected by means of link 11 and a system of levers with a translation 12 of a belt 13 of a conoidal variator comprising a lower conoid 14, an upper conoid 15.

In order to further adjust the canvas, an eccentric 18 is placed in the support 16 fixed on the machine frame 17 in the process. One eccentric horse is made in the form of a glass (see Figs. 1 and 2) and by means of a finger 19 contacts the summing lever 7, and in the latter there are a number of holes O in the latter for adjusting the wane ratio. At the other end of the eccentric, the lever 20 is rigidly fixed, hingedly connected to the pull 21. The axis of rotation of the summing lever 7 is displaced with respect to the axis of rotation of the lever 20 by eccentricity e On the lever 20 there are holes f for changing the ratio of the lengths of the arms of the lever 20 and the tie rod 21 by permutations of the bracket 22 and the screw 23. The ha ha 21 is hingedly connected to the disk 24 of the actuator 25.

On the shaft 26 (see Fig. 3), kinematically connected with the lower flatting shaft 27 and the rolling rollers 28, the flag 29 is rigidly fixed so that the slot of the non-contact control switch ZO, fixed on the machine frame, allows the flag at each turn of ala 26 pass in it.

Circuit (see Fig. 6) contains a canvas length sensor, made in the form of a limit switch 30 containing a pulse counting relay 31, output Iioe relay

32 limit switch, intermediate relay 33, relay 34 for resetting the accumulated impulses and starter, 35 autosampling engines.

During operation of the scutching mask, a layer of fiber passes between the pedal cylinders 1 and pedals 2; at medium thickness, the belt 13 is in the middle of the conoids 14 and 15. When the thickness of the pedal 2 layer increases, lower 3 and add up the lever 7. At the same time, the lever 10 rotates counterclockwise, moving 11 and translating 12 to the right along the axis of the tractor. . The belt 13 moves to the right and moves to the large diameter of the driven conoid 15, as a result of which the fiber layer decreases.

With a decrease in the thickness of the fiber layer, the movement of the pedal control elements occurs in the opposite direction; which increases the fiber layer feed.

To eliminate the drift of the tex, at the beginning and end of the canvas run time, the contactless limit switch 30 generates pulse signals as it passes through predetermined pieces of the canvas, which are counted by the impulse counting relay 31. Due to the kinematic connection with the flattening shafts 27 and the rolling shafts 28, the angular displacement of the shaft 26, on which the flag 29 is fixed, is directly proportional to the unwinding canvas. The relay 31 adjusts to such a section of the canvas, beginning with which it goes to the end of the time ut desired. After receiving the specified number of pulses, the relay 31, through the intermediate relay 33, gives the command to turn on the actuator 25, the disk 24 rotates and by means of the pull 21, the lever 2O turns the eccentric axis 18. The supporting point of the summing lever 7 of the pedal controller is lowered, as a result of which, through lever 9, lever 0 rotates, moving rod and thus the translation 12 of belt 13, the latter moves to the right and slows down the speed of the pedal cylinder 1, reducing the amount of fiber supplied to the beater s.

As a result, the canvas is flattened out.

Claims (1)

1. Patent of Germany No. 1022133, cl. 76c 3/01, published in 1958. 23 2i ig.2 28 27 and