SU1338982A1 - Arrangement for cutting rolled stock in metered blanks - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in engineering for cutting rolled products. The purpose of the invention is to improve the quality of the obtained (L 00 00; O 00 th. 30 Fi.g.1

Description

blanks. To eliminate the bending deformation during blanking, one of the extreme cutting sleeves 6 is mounted in a spring-loaded floating block K 4 installed in guides with the possibility of reciprocating movement parallel to the movement of the slide (P) 3, which interacts with its side surface and is kinematically connected with P 3 by means of the processed rolling. On the basis of the housing 30 is the stop 31, limiting the course

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

The purpose of the invention is to improve the quality of the resulting blanks.

Figure 1 shows a device for cutting rolled in the initial position, the section; figure 2 - the same at the time of felling.

The device for cutting rolled products into dimensional workpieces comprises a housing 1 of a cutting sleeve 2. A slider 3 and a floating block 4 with cutting sleeves 5 and 6 are located in the guide bodies. A limiting discharge stop is installed behind the floating block 4, The driver of limiter 7 with Przgasina 8, rolling pins 9, body 10 of the stop and springs 11. The limiter .7 rests on the plate 12, which is located in the housing 1 and is controlled by the stop screw 13, during operation. 1

A limiting stop with a rolling pin -9 is associated with a plate 14 of the press ram. The plate 14 contains the head 15. On the top of the body 1 of the stamp, a stop plate 16 is fastened, which serves as a stop for the slide 3 and the floating pad 4.

The double-shouldered lever 17 of the buffer device 18 of the punch has a ball mounted, nirno on the axis 19 in the housing 20 and its arm 21 contacts the bearing surface 22 of the floating pad 4

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floating K A. When moving P 3 downward, part of the bar is first cut into two workpieces along the length, since floating K4 with cutting sleeve 6 moves together with P 3. Meeting the stop 31 on the way, floating K 4 with cutting sleeve 6 stops and P 3 with the cutting sleeve 5 is still moving, the section of the rod located in the cutting sleeves 5 and 6 is cut into two equal pieces. This eliminates the bending deformation of the blanks during cutting. 2 Il.

and with shoulder 23 or plane 24, with support surface 25 of slider 3. Cutting sleeve 2 of housing 1 is mounted in casing 26 with rolling pin 27 and nuts 28 and 29. The chopping device is mounted on base of housing 30 containing ulor 3. Positions 32 and 33 designate the blanks, and

position 34 - processed hire.

The device works as follows.

In the initial position, the slider 3. And the floating block 4 are in the extreme upper position and pressed by the spring of the buffer device 18 to the support plate 16 of the housing 1. The double-arm lever 17 is rotated on the axis 19, contacts the arm 21 with the supporting surface 22 of the floating pad 4, and

shoulder 23 - with the support surface 25 of the slide 3. The holes of all cutting sleeves 2.5 and 6 are aligned. The housing 10 of the limiting stop with its limiter 7 does not block the course of rolling 34, and the striker 15 is not in contact with the slider 3 devices

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When the press is turned on, the firing pin 15 and the housing 10, together with the stopper 7 and the rolling pin 9, begin to move downwards. At the same time, the delivery of rolled metal 34 occurs by a mechanism shown, syn. chronically associated with the press. Since the limit stop

its limiter 7 has not yet blocked the channel movement of the bar, then when the bar 34 is fed, the previously chopped billets 32 and 33 are pushed out. At the time of the second billet 33 coming out, the stop limiter 7 stops the channel and encounters the initial end of the rolled metal. Under the action of the rolling supply, the limiter 7, compressing the spring 8, is based on the plate I2 in the housing 1, which limits the length of the cut blanks 32.

Subsequently, when the striker 1 touches slider 3 and moves it down, floating block 4 will also start to move down, as it turns out to be connected with rolling 34 by means of slider 3. At this moment, the bar is cut at the point between bushings 2 and 5, i.e. a blank is obtained, equal in length to the two required blanks 32 and 33.

Moving along with the slider 3 and the floating block 4 down, this double billet with its end extends beyond the end face of the limiter .7, which under the action of the spring 8 overlaps the end of the billet (goes to the top of the billet). The floating shoe 4 rests against the abutment 31 with its support surface 22 and stops its downward movement. At this moment, the previously cut off double billet is cut in half. Slider 3, continuing to move downward, pushes lever 17, which, turning on axis 19, locks its plane 24 into support surface 25 of slider 3 and stops contacting with shoulder 21 with support surface 22 of floating pad 4, which prevents it from high speed jump up under the action of the spring buffer device 18.

When the press plate 14 moves up, the slider 3 under the action of the spring of the buffer device 18 will start moving after the striker 15. The lever

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17 with its alech 21, meeting on its way floating pad 4, will begin to lift it also up. The severed billet 32 at its end lifts the stopper 7. At that moment, when the floating block 4 rests on the thrust plate 16, the lever 17, turning on the axis 19, presses and the slider 3 to the thrust plate 16. The axes of the holes of all cutting sleeves 2.5 and 6. Rolling pin 9, moving up with the plate 14, lifts the body 10 with the limiter 5 to 7-, and leads it from the workpiece 32 upwards. From this moment, the next feed of the rolled steel 34 will begin, which, when it is axially advanced, pushes the cut off blanks 32 and 33.

Then the cycle of operation of the device is repeated.

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Claims (1)

Invention Formula A device for cutting rolled metal into dimensional workpieces, containing movable and fixed plates, three stub knife, mounted on a fixed plate, the middle of which is installed with the possibility of moving and interacting with the movable plate, and a limiting stop that improving the quality of the resulting blanks, it is equipped with a spring-loaded floating pad mounted in a fixed plate with the ability to move in the direction of movement movable plate, and stop mounted on a fixed plate with the possibility of interaction with the floating. one of the end bushing knives is mounted for movement relative to the movable plate and interacting with the floating block. / 5 3  / 2826 23 FIG. 2