SU512870A1 - Automatic transverse cutting line - Google Patents

Description

(54) AUTOMATIC TRANSFER LINE OF CUTTING ROLL

m rollers, as well as corrective devices in the form of warriors and self-stopping stop,

FIG. 1 shows the proposed automatic line, general view; in fig. 2 is the same, top view in FIG. 3, a section along the A-A in FIG. 1. i

The automatic cross-cut roll cut line contains an unwinding device 1 with a loading 2, designed to install a roll onto a rattling device, a feed unit, poros 3, swivel 4 and not turning 5 guillotine shears, a mechanism 6 and 7 for resetting the cut plates, feet 8 for receiving them and stapling

Non-rotary scissors, designed for trimming, are located behind rotary scissors on a slider 9, which can be moved along guides 10. The feed mechanism consists of a pressure roller 111 and a leading wolf 12) which rotates through a gear 13 with a stepping electrohydraulic drive. 14. Similarly, the actuator 15 rotates the rotary shears through the gear 16.

The reset device cut plates consists of two mechanisms located between the scissors. The reset mechanism is mounted on a fixed scissors, the second similar mechanism is permanently mounted at the rotary scissors. Ka the mechanism is designed as a valuable gear 17, on the upper branch of which a stop 18 is fixed, the movement of which is limited by track switches 19. With the help of stops 18, the cut-off plate 20 is dropped in the transverse direction alternately on both sides of the Line,

Between the tensioning mechanisms of the tension tape 21, supporting the feed strip. One end of the tape 21 is fixed on the apron of the rotary scissors, and is inserted into the drum 22 located on the stationary reset mechanism.

Before turning the scissors, it finds a longitudinal mixing mechanism of a torn plate, as above: in the form of a portal 23 with a console 24. A slider 25 which carries a grip for the edge of a cut strip, for example, in the form of an electromagnet 26, can move along this console.

For orienting nonoci, along the axis of the line With both of the Topoi roller feed, there are radial side stops 27 "Similar side stops 28 are mounted on the non-rotary scissors. These ups are sunk before the plate is discharged on the base plate 29.

In order to improve the cutting accuracy of the plates on the non-rotary scissors, a correction device is provided, installed in the form of a sensor 30 that reacts to the strip edge passing above it and is electrically connected with the stepper electrohydraulic drive 14. The sensor 30 is mounted on a slider 31. A similar sensor 3 2 is spread on upper slider 33, directed with w {e34; which can be lifted by the pneumatic cylinder j 35. Another option involves the implementation of-; Correction devices are installed in the self-aligning rotating stops 36 and 3 7 installed on the lower and upper nofi-zoons (the upper stop 37 is shown in Fig. 2 by convention). The third option involves the joint use of the stops 36 and 37 and the sensors 30,32 in the corrective devices.

The rotary scissors are also provided with magnet plates 38 for fixing a belt in front of the tension (when reversing the roller feed), longitudinal 39 and two side magnetic rollers 40, which serve to improve the orientation conditions of the strip along stops 36,37, and a box 41 in which the cuttings of the plates are accumulated. A deflection drum 42 is also included in the line.

The automatic line works in the following way.

Before switching the line into operation, the following adjustment operations are carried out. With the help of a trolley, the roll is placed on the unwinder. The end of the strip is inserted through the deflection drum into a line. The side stops of the roller feed are adjusted along the width of the strip (in Fig. 2, the position of the stops during the cutting of the slant strip is also conventionally fixed). Non-rotary n (shifts are mixed along the guides relative to the rotary scissors and set according to the required length of the plate, and the correction device moves relative to the cutting line of the non-rotary scissors and adjusts to the height of the bar. The control system enters data on the rammer and the shape of the plate,

After these operations, the rotary shears are rotated at the bevel angle of the first plate, the strip is introduced into these shears and its leading edge is cut. The lugs of the reset mechanisms in the adjustment mode are set to one of the extreme positions corresponding to the direction of the first plate reset.

At this point, the preparation of the line for operation is stopped, and the hedgehog is switched to automatic mode.

The swath feed fulfills the specified plate size, and the swivel knobs rotate to the desired bevel angle.

Then, both shears and barbells are produced simultaneously on both scissors. By moving from one extreme position to the other, the stops are thrown onto the plate on the table, and the starting position is taken to reset the next plate in the opposite direction. During the reset of the cut-off plate, the measurement of the size of the next plate and the turning of the rotary scissors begin. The stops are made with a bevel (Fig. 1). In such a way that they do not interfere with the strip during reset. Accordingly, in order to combine movements of the operation of the mechanisms for resetting and driving the rotation of the shears,

 When cutting noBtv rectangular plates, the mouth of the scissors is not required. Discharge of plastics is carried out through the shears.

Cropping a mustache is needed only on one edge of the plate. For plates having the same bevel angle on both sides, this is an operation.

can be performed by swiveling SCISS & MII. however, the plate is asymmetrical, the needles are trimmed from the side of the shears. In this case, after the plate is cut, its krblJ is captured by a magnet, and it is slid forward by the slider to size L (Fig. 2); the strip is retracted to the same size in a roll feed. The pivoting shears unfolds to a position perpendicular to the axis of the line and is cut off on two plates at once. Other scissors do not work. with .

If the roll feed does not satisfy the required accuracy of cutting the plates, a correction device is introduced into the work. When the correction device is designed as a sensor, the plate cutting cycle remains unchanged. It differs only in the operation of the drive feed control system; until the sensor crosses it, it works without counting the size, and then a size equal to the distance from the sensor to the stop point of the strip is worked out.

If the correction device is designed as a stop, the feeding process is carried out as follows. The roll feed works the plate size with a certain excess, which the stars in the control system advance and equals the maximum possible feed error. The edge of the strip is directed against the stop on the lower slider. Since this stop has the ability to rotate in a horizontal plane, self-orientation of the end of the strip along this stop and one of the side stops occurs, and a shaft forms on the strip, the value of which is equal to

worked out the 1st size over the given one (the given size is equal to the distance from the stop to the rotary scissors). The magnets that hold the edge of the strip are turned on and the roll feed is reversed. The wave selects from, and: include -. all scissors. The magnets are turned off, the side stops are lowered, and the plate is dropped from the line.

The same cycle has the mebto even when the correction device is executed in the form of a self-aligning stop from the dates of the clock. The difference is that the size reading starts when the strip passes over the sensor.

If alternate cutting of plates of different lengths is required, an upper correction device is activated, which is lowered by the pneumatic cylinder when the shorter plate is fed and rises when the next one is fed. When working without correction devices, in this case, only the program of work of the vapkovy feed changes, which in turn works out the dimensions of the short and long plates.

Claims (3)

 1. Automatic transverse line; cutting of the roll into rectangular and oblique-angled plates with o & sharp yousa, including unwinding device, roller feed mechanism, rotary and non-rotating guillotine shears, device: dumping plates, tables, for their reception and stagpelling different from that, in order to increase productivity and reduce overall dimensions, the roller feed mechanism and rotary scissors are equipped with a stepper electrohydraulic drive, the non-rotating knife was looking for discharging with the possibility of moving along the axis of the line, and the device for resetting the plates, located between the scissors, was made in the form of two mechanisms, one of which was mounted on a non-woven company scissors, and the second - stationary At the rotary scissors. 2. The automatic line in accordance with claim 1, wherein, in order to provide usa trimming on asymmetrical oblique plates, there is a mechanism for the longitudinal movement of the cut plate, made in the form of a portal carrying a console on which is mounted slider with grip. 3. An automatic line in p. T is characterized by the fact that, for the purpose of orientation and fixation of the strip along the axis of li7512870g SRI, as well as reliability and precision of cutting, magnetic magnetic rollers, as well as rotary scissors are equipped with a regulating device in the form of sensors and stops, longitudinal and transverse self-aligning stops. FIG. 3 /(-BUT