SU1299707A1 - Arrangement for cutting waste - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in engineering for cutting waste. The purpose of the invention is the expansion of the technological capabilities of the device for cutting waste. When the press slide 7 moves down, the shank 5 and the cutting element 3 begin to move downwards. When the cutting element 3 reaches the lower position, the switch 28 15 24 (L Fut1

Description

1299707

commands the air cylinder 13. command. The element 3 moves upwards. There is a disconnection of the stop, the tail-turning key 11 with the swivel 5 and the cutting element 3, under the bite in the narrow part of the groove, mined by the action of the springs of the spring mechanism 26 stop, 1 s, pfl, 3 il.

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The invention relates to the processing of metals by pressure and can be used in engineering for cutting waste.

The purpose of the invention is to expand the technological capabilities of the device for cutting waste,

FIG. 1 shows a device for cutting waste, isometry} in FIG. 2, the same side view; on fig.Z - section aa on fig, 2,

The waste cutting device comprises a base 1 with guides 2, a dovetail joint for a movable cutting element 3, a fixed cutting element 4 and a stem 5, the upper end of which is kinematically connected with a press slide 7 and the hinge joint The lower corner is placed in the guide hole 8 of the movable rezush, its element 3 with the possibility of translational motion. The shank 5 has a shaped groove 9 with an emphasis 10. A rotary key 11 is located in the groove 9, which is an axis mounted in the housing of the movable cutting element 3. The central part of the rotary key 11 is made in the form of a segment, the front end of the key 11 is pivotally connected by means of p1ch12 a two-sided pneumatic cylinder 13 mounted on the housing of the movable cutting element 3. The rotary key 1 and the pneumatic cylinder 13 are integral parts of the disconnection mechanism, which also includes a ratchet fur nism 14, consisting of polzushki 15c sprung pawl 16 and the ratchet wheel 17 rigidly mounted on shaft 18, together with discs 19,

having shaped grooves, the number of which on each disk determines the multiplicity of the length of the cut waste waste.

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The slider 15 is mounted in the housing of the base 1 with the possibility of translational motion. The upper end of the slider 15 is hingedly connected to the lever 6, In the base case 1 there is a shaft 20 on which a roller-copier 21 is installed with the possibility of rolling on the disks 19, changing the position in the axial direction of the shaft 20 and fixing in each position the screw 22, At one end the shaft 20 is mounted a switching plate 23 with the ability to act on the limit switch 24, the shaft 20 is spring-loaded by a spring 25 to the discs 19 to ensure that the roller copier 21 is constantly pressed to the discs 19, the Movable cutting element 3 is equipped with a lifting mechanism 26 filled in the form of a spring. On the movable cutting element 3, a switching plate 27 is installed with the ability to interact with a limit switch 28 located on the base 1. To buffer the blow, when the lifting mechanism is operated, buffer springs 29

The device for cutting waste works as follows

At the start of operation, when the press slider 7 is in the upper extreme position, the shank 5, the movable cutting element 3 and the slider 15 are also in the extreme upper position. The springs of the lifting mechanism 26 are in a free state. The copier roller 21 is in the groove of one of the discs 19, the limit switch 24, interacting with the switching plate 23, commands the pneumatic cylinder 13, Eaton pneumatic cylinder 13, kinematically connected with the rotary key I1, is in the extreme forward position, thereby ensuring rotation keys 11 by 45 relative to the axis of the shaped groove 9. Through the stop 10 rotate the key

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1II, the shank 5 and the movable cutting element 3 form a rigid system.

The working area of the device is free for material feeding. During the course of the press ram 7, the kink 5 and the movable cutting element 3 with the switching plate 27 begin to move kinematically connected with it. Mechanism springs

26 shrink, cutting is carried out. When the movable cutting element 3 reaches the lower position, the limit switch 28 interacts with the switching plate

27 and sends a signal to reverse

the stroke of the pneumatic cylinder 13, the stem of which moves to the extreme rear position by turning the button 11 to the right, thereby disconnecting the stop TO, the shank 5 and the movable cutting element 3. The latter, under the action of the springs of the mechanism 26, moves upwards, freeing the working area of the gear unit material. Swivel pin; 11 when this moves in the narrow part of the figure groove 9, the stop is lO-i. The press slider 7 also moves together with the kinematically connected shank 5 and the crawler 15 with the spring loaded dog 16. The dog I6 engages with the ratchet wheel 17 and rotate it together with the discs 19, providing the output of the roller-copier 2 from the figured groove of the disk 19. Turning, the roller-copier 21 acts through the shaft 20 on the switching plate 23, which comes out of contact by the limit switch 24, thus eliminating enable direct the stroke of the pneumatic cylinder 13. The forward stroke of the pyromo cylinder 13 is provided by the repeated interaction of the switching plate 23 with the final switch 24.

The springs of the mechanism 26 provide the lifting of the movable cutting element 3 to a height slightly lower than the extreme position, which ensures the guaranteed achievement of the lower expanded part of the figure groove 9 of the shank 5 of the rotary tongue 11 that previously moved together with the movable cutting element 3, then the movable cutting element 3 reaches the extreme the upper position is 1 already under the action of the shank 5,

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connected through the lever 6 with the slide 7 of the press. When the press slider 7 is repeated to be slid down, the shank 5, kinematically connected with the slider 7 of the press 7, is moved down. The pivot key 1 freely moves in the shaped groove 9 of the shank 5, the stop stops 10. The movable cutting element 3 is under the action of the springs of the mechanism 26, the shank 5 is idling in the upper position, the valve between the cutting elements 3 and 4 is free to feed the material to the schag In this case, the slider 15c under the spring-loaded pawl 16 moves downwards, without affecting the ratchet wheel J 7. The press slider 7 starts moving upwards again. If the roller-copier 21 is installed with the possibility of rolling over the disk 19 with shaped grooves providing a multiplicity of cutting waste length equal to two steps, then the slider 15 with the dog 16 will act on the ratchet wheel 17, turns it, and accordingly the disks 19, on some angle, providing the entrance of the roller-copier 21 in the next figure groove. The copier roller 21, falling into the slot, turns and,

turning the shaft 20, rotates the switching plate 23, which interacts with the limit switch 24 and sends a signal to trigger the pneumatic cylinder 13,

The pneumatic cylinder rod 13 moves forward. The pivot key P, which at this moment reaches the lower, lined part of the figure groove 9 of the shank 5, rotates by 45 and provides rigidity to the conematic connection: the shank 5 — the pivot key P — the movable element 3. The space between the cutting elements is free to feed the material to next step. Then the cycle repeats,

To ensure that the length of the cut waste is multiplied, the feed pitch of 4, 8, or 12 needs only to be moved on roller 18

21, which is secured in the appropriate position with a screw

22, After this, the shank 5 performs idle motions.

 until the roller-copier 21, running around on the corresponding disk 19, falls into the next groove and kinematically does not give a signal to turn on the pneumatic cylinder 13.

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Claims (1)

1. A device for cutting waste containing a movable and stationary cutting elements, a shank, kinematically connected with a slider and a cutting element, a mechanism for disassembling the kinematic connection of the shank with a movable cutting element, made in the form of a rotary key installed in the hole the movable knife and in the groove of the shank the knot of turning the key with control means, roller-copier, discs, with shaped grooves installed on a common shaft, and a limit switch, electrically connected with the control unit of the hub rotation unit, characterized in that, in order to expand technological capabilities, it is equipped with a movable knife lifting mechanism and an additional limit switch with a movable knife lower position sensor, working with the key rotation control, 2, the device according to claim 1, about tl and - so that the lifting mechanism of the movable knife is executed in the form of springs. Fi8. 2 f (A Compiled by Y. Filimonov Editor S. Lisin Tehred N. Glushchenko, Proofreader S. Shekmar 959/9 Circulation 976 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 P (/ g. J