SU896087A1 - Lap-accumulating device to unit for making non-woven fabrics - Google Patents

Description

(54) DEVICE FOR ACCUMULATING THE PROCESS TO THE UNIT FOR THE PRODUCTION OF NONWOVEN MATERIAL

The invention relates to textile machines, and can be used, in particular, in units for the production of nonwoven materials of needles by punching or needle-stitching method. A device for accumulating a process is known, having three photo cells arranged one above the other with illuminators that are subsequently darkened or illuminated by one compensation loop from the batt. As it moves, the loop overlaps or opens the corresponding beam of light falling on the opposite photocell. The signal received by the photocell gives the command to the executive tl. The disadvantage of this device is the small length of the accumulated combing, which, when idle in the sewed-through machine, leads to stopping the casing machine and the transducer with large fur masses, which, in turn, leads to wear of individual machine components, reducing the reliability of their operation, an increase in time is simply an at-regatta and a sufficiently high abrasion of the material obtained. The aim of the invention is to reduce the downtime of the unit and reduce the breakage of the nonwoven material. This goal is achieved by the fact that a device for accumulating a comb to an aggregate for producing a nonwoven material, comprising means for feeding material, a roller pair, actuating means, photosensors and illuminators of photosensors, is additionally equipped with roller pairs and actuating means, each the form of an electromagnetic clutch mounted on the trunnion of the lower shaft of the corresponding roller pair, and the clutches are interconnected by means of a gear, kinemat cally associated with one of the drive machine unit and the roller pair are arranged in series along the movement of the batt.

In this case, the upper shafts of the roller pairs are made spring-loaded, and overrunning clutches are mounted on the axles of the lower shafts of the extreme roller pairs.

FIG. 1 shows the proposed device, side view; in fig. 2 the same, top view (for the sake of clarity on the front roller pair, the upper shaft is rotated in the plane of the drawing, the remaining upper shafts are not shown. J. The combing unit accumulator for producing nonwoven materials contains lower I and upper 2 spring-loaded shafts. At the ends gears 3 and 4, which engage with each other, are fixed on one side of the lower and upper shafts. Gear wheels 5 and electromagnetic clutches 6 are installed coaxially with the second ends of the lower shafts; the transducer has a gear wheel without an electromagnetic clutch and carries an overrunning clutch 8 with an asterisk for a chain connected to an asterisk 9 placed on the shaft of the transverse conveyor 10 of the forward idler. The lower shaft of the extreme roller pair placed from the side of the passer-by machine also carries an overrunning clutch 11 with an asterisk for a chain connected to an asterisk 12 placed on the shaft of the inclined conveyor 13 in the piercing machine. The roller pair shafts are interconnected by means of intermediate gears 14. Under each roller pair are placed the upper photoresistances 15 and the lower photocontrols 16, illuminated by the light sources 17 and 18 and controlling the working electromagnetic sleeves by means of compensating loops 19. The upper photoresistances with light sources include electromagnetic clutches in drive mode; lower photoresistances with light sources turn off electromagnetic clutches from drive mode. The last pair of photoresistances and light sources are used to turn off the work and turn on the converter and carding machine. The operation of the aggregate webs accumulation device for the production of nonwoven materials is carried out as follows.

The cross from the cross conveyor 10 of the converter convertible is fed

onto the sealing rollers 1, 2 of the accumulation device of the batt and then into the zone in the undercarriage at a speed consistent with the feed rate of the batt by the conveyors of the batt converter.

Claims (3)

During normal operation of the aggregate, the drive of the accumulator is driven from the inclined conveyor 13 into the piercing machine through an asterisk 12. The batt from one roller pair is fed to the other roller pair without sagging, the rays of light do not overlap, the electromagnetic clutches 6 operate in a drive mode, all pairs of sealing shafts rotate at a synchronous speed. When stopping in the piercing machine, its conveyor 13 stops, as a result of which between the first roller pair of the accumulator and the conveyor 13 in the piercing machine a first compensating loop 19 of the batting is formed, which blocks the light beam of the lower light source 18, electromagnetic clutch 6 The first roller pair is turned off from the drive mode, the first roller pair stops and stops the batting. Then the accumulation of batting occurs between the first and second roller pairs until the beam of light is blocked and the electromagnetic clutch of the second roller pair is switched off from the drive mode. Similarly, the formation of loops of the batt between subsequent pairs and the shutdown of the latter from the operating mode. . The removal of compensation loops 19 of the batt follows. When starting up the piercing machine, the web forming the first compensating loop 19, placed between the conveyor 13 in the piercing machine and the first roller pair 1, 2, is fed into the zone in the underside. When the upper photoresistance 15 of the outermost pair of photoresistances in the piercing machine is illuminated by the light source 17, the electromagnetic clutch 6 of the first roller pair 1.2 is turned on in the drive mode, the first roller pair 1, 2 is rotated and forming the second compensation loop 19, located between the first 5 and the second roller, 2. Similarly, the subsequent compensation loops are removed from the batt, and when removing the compensation loops formed before the last loop With it, a pair of sealing rollers, the upper photoresistance 15, illuminated by the upper light source 17, includes a combing card and carding machine in the event of their stopping. The use of the invention increases the accumulation of the batt during the shutdown of the piercing machine in comparison with the known device and thereby reduces the number of cases of stopping of the batt converter and the carding machine. The reduction in cases of stopping of the carding machine, leading to rupture of the elementary filaments, increases the grade of the nonwoven material produced and the efficiency of the unit. In addition, the reduction of stops of the carding machine and the converter process with large flywheel masses, reduces the wear of parts and increases the reliability of the unit. Claim 1. Device for accumulating a web to an aggregate for producing non-woven chaterial, comprising means for feeding material, a roller pair, actuating means, photosensors, illuminators of photosensors, characterized in that, in order to reduce unit downtime and reduce breakage, it additionally provided with roller pairs and actuating means, with each actuating means made in the form of an electromagnetic clutch mounted on the trunnion of the lower shaft of the corresponding roll pair, the couplings are interconnected by a gear, kinematically connected with the drive of one of the machines of the unit, and the roller pairs are installed in series along the path of the batt. 2. A device according to claim I, characterized in that the upper shafts of the roller pairs are spring-loaded. 3. A device according to claim I, characterized in that overrunning clutches are mounted on the pins of the lower shafts of the extreme roller pairs. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 114702, cl. D 01 G 23/00, 1957. 1618 f6 IB sixteen FIG. I / and II “FIG. 2 12 ten