SU1165515A1 - Apparatus for feeding strip material in working zone of press - Google Patents

Description

The invention relates to the field of cold metal forming and can be used to supply tape material in the working area of the press. .five

The aim of the invention is to increase reliability.

Figure 1 shows a device for feeding the tape material in the working area of the press, a general view; on . FIG. 2 is a view A in FIG. in Fig.3 View B in Fig.2; figure 4 is a view In fig "2; figure 5 - node T in figure 4; figure 6 - section GG on fig.Z; figure 7 - section dd in figure 5; Fig.8 is a section of the EE in Fig.5.

The device for feeding the tape material into the working area of the press with the upper arrangement of the compensation loop contains a frame 1 with side ² wines 2 roll boxes and support rollers 3 (in various versions can be either with an individual drive or non-driven) on which the roll material 4. 25

The device also contains unwinding rolls 5 and 6 mounted on the drive housing 7 fixed to the bed 1 near the roll holder with the roll 4. The support plates 8 with the cheeks 9 and 10 attached to them, are attached to the upper surface 30 of the drive housing 7 of the unwinding rolls in which the unwinding rolls 5 and 6 are mounted, the elements of their closing mechanism 35 and the device for the formation of a compensation loop. In the cheeks 9 and 10, the grooves 11 and 12 are made, in which the sliders 13 and 14 are installed, respectively, interacting from one side with the spring-loaded clamps 15, and on the other hand through the intermediate element (plate) 16 seconds. screws 17 and 18 of the movement mechanism of the sliders. The screws have tails 45 ki, which are put on the handle 19, and contain sprockets 20 and 21, connected by a chain 22. The unwinding roll 5 is installed stationary in the cheeks of the housing 7, and the roll 6, on which are placed 50 both sliders 13 and 14, kinematically through gears 23-26 and pairs of earrings 27 and 28, 29 and 30 is connected with the shaft 5 and installed in the case in such a way that it can move in cheeks 9 and 10 on the sliders 13 and 14 at an angle to the plane, ^ passing through the axis of the rolls 5 and 6,

obliquely to the horizon. The mechanism of formation of the compensation loop is placed in the housing 7 of the drive of the unwinding rolls and contains connected via a pulley 31 with a spring 32 shaft 33, on which the cams 34 are installed, interacting with electric sensors 35 on plates 8, electrically connected with the drive of the rolls, as well as levers 36 and 37. The levers are made with longitudinal grooves in which the roller 38 interacting with the ribbon is placed with the possibility of moving. The sidewalls 2 of the frame 1 are equipped with additional rollers 39 and 40, which are arranged perpendicular to the support rollers. and and in contact with the roll through the slots in the sidewalls. In addition, the device includes a drive 41 unwinding rolls with. electric motor and chain transmission, as well as remote control 42 controls.

The device works as follows.

A roll of tape 4. mounted on the support rollers 3 roll between the sides 2, adjusted to the width of the roll so that the additional guide rollers 39 and 40 on both sides of the sides in contact with the roll at its ends. The end of the tape is slid between the previously diluted rollers 5 and 6, cover the loop forming mechanism roller 38 and pull to the right (FIG. 1) in the correct device before the press (not shown). .

In the off position, the roller 38. the probe mechanism of the formation of a loop under the action of the spring 32 is horizontal, bent to the left. Loop tape, wound between the rolls 5 and 6 in the correct device (not shown) holds the roller 38 on the levers 36 and 37 vertically, not allowing to deviate to its original horizontal position. After filling the tape into the unwinding rolls 5 and 6 by rotating the handle 19 connected to each other through sprockets 20 and 21 by a chain 22, screws 17 and 18 rotate in the same direction (as they have the same cut) and press on the sliders 13 and 14. Roll 6 together with sliders 13 and 14 is moved to contact with a clamped tape, which is pressed against the roll 5. When the drive 41 is turned on, rolls 6 and 6 through the chain

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gear, gears 23-26, placed on pairs of earrings 27 and 28, 29 and 30, receive rotation, unwind roll 4 and form a compensation loop on the top above the roll holder and unwinding rolls. The roller 38 looper, adjusted in height in the slots of the levers 36 and 37, in contact with the tape and being able to 'perform swinging movements on 10 levers 36 and 37 in the supports.' Shaft 33, fixes the size of the loop and the presence of the tape and through three sensors 35, interacting with cams 34, gives commands to the drive 41 (electric motor) '15 unwinding rolls. In the case of the formation of a large loop, one pair of cams 34 - sensor 35 gives a command to. rolls roll drive drive stop. At this time, the press is running, loop 20

decreases and at its minimum size (loop, small) the second pair of cams 34 — sensor 35 — comes in contact, which gives the command to turn on the electric motor. Drive shaft — 25 cov 5 and 6 roll wheels.

As the size of the pet-gly increases, the first pair of cams 34 — the sensor 35 gives a command to stop the electric motor, etc. ,. thirty

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The third pair of cams 34 - sensor 35 detects the absence of the tape in the rolls and stops the roll roll drive. In order to reduce the number of on-off motor, the drive has an adjustable speed.

The loop formation cycle is repeated automatically. Adjustment switches on the drive are carried out with adjustments from the remote control 42. The roller 38 in the slots of the levers 36 and 37 and the cams 34 on the shaft 33 is adjusted by successive loosening and tightening of the corresponding fasteners in a known manner after they are installed in a predetermined position of the roller 38 in the levers 36 and .37 and rotated cams on the shaft 33. The removal of the wap 6 from the roll 5 during refueling of the tape with the screws 17 and 18 turned out is carried out by spring-loaded latches 15, pressing on the sliders 13 and 14.

The effect of using the present invention is to increase the reliability of operation.

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Claims (2)

3. A DEVICE FOR FEEDING THE TAPE MATERIAL IN THE WORKING AREA OF THE PRESS, containing a frame with support rollers for accommodating a roll of tape material, a material feeding mechanism having cheeks in which the drive shaft is fixed with the lower feed shaft and grooves are made, spring-loaded sliders installed in the grooves of the cheeks, a driven shaft connected to the drive shaft, and carrying the upper feed roller, a mechanism for moving the sliders along the grooves, having drive screws, and a loop material forming mechanism having a lever pivotally fixed in the cheeks to be rotated, and a roller mounted on a lever with the possibility of adjusting movement, characterized in that, in order to increase reliability, the grooves are located perpendicular to the axis of the lever, and the device is also equipped with sensors fixed on the cheeks, the cams mounted on the lever with the ability to interact with the sensors, a pulley connected to the lever and a spring, one end of which is connected to the pulley through a flexible rod and the other end attached to the cheek. 2. The device according to claim 1, of which is that it is provided with additional levers fixed on the frame for the direction of the roll. zi..l 65515 1 165515