SU685448A1 - Apparatus for indexing sheets prior to cutting - Google Patents

Description

Scale bars 12, parallel to the grooves 11 and feed unit 13, which cooperates with guide bars 7, 8, Rotary bar 5, supported by roller 14, rotates relative to roller 15 through bearings 16 fixed in support 17 of table 1 with nuts 18, The feed unit 13 is made in the form of two carriages 19 and 20. The carriage 19 is installed with the possibility of reciprocating movement on the table 1 by means of the drive 21 and is made with a radius protrusion 22 ,. The carriage 20 is provided with rollers 23 interacting with a radial protrusion 22, and a clamp 24 which rigidly connects it through the sheet 25 to the turntable 5. The drive 21 of the carriage 19 contains an electric motor 26 driving sprockets 27, 28, mounted on shaft 29, driven sprockets. 30, 31, sitting on the driven shaft 32, and chains 33, 34, on which the carriage 19 is rigidly fixed. The clamp includes a nut 35 and a screw 36.

The device works as follows.

The side stops 10 are installed in the slots 11 along the scale bars 12 at a predetermined angle of rotation of the rulers. The sheet 25 is supplied by a sheet-laying machine (not shown) onto the surface of the table 1 with ball bearings 4 between guide bars 7, 8 and clamped by a clamp 24 in the carriage 20. The actuating cylinder b is turned on and the turn bar 5, guide bars 7, 8 and the carriage 10 are turned , sliding along the radial protrusion 22 of the carriage 19 to one of the stops 10, while moving the sheet 25 at a given angle. The drive 21 of the carriage 9 is turned on, which, moving together with the chains 33, 34, delivers the sheet 25 under the cutting edges of the shears 37 of the shears. Then include scissors and cut the front edge of the sheet 25 at a given angle. Then the power cylinder 6 is turned on again, the turn bar 5 is turned, the guide bars 7, 8 and the carriage 20 together with the sheet 25 are turned to the opposite stop 10.

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The drive 21 is turned on, the carriage 19 is moved with a sheet 25 up to the stop 38 scissors, the scissors are turned on and the finished part is cut off. Next, the device is turned on to an automatic cycle, the sheet is turned to 5 angles and pressed against the back stop of the shears, and the sheet is cut. After cutting the sheet 25 carriage 19 and 20 return to its original position.

The device provides an increase (On the performance of cutting a sheet of rhombic and trapezoidal blanks.

Claims (2)

1. A device for positioning sheets before cutting, comprising a table with radius grooves, a swivel plate, guide bars and side stops mounted on a table with adjustable displacement, axes rigidly connected at one end with guide bars, and a feed unit, in order to increase productivity, the turn bar is located under the table and rigidly connected with the other ends of the axes placed in the radius grooves, and 0 lateral stops are installed on the outer sides of guide lines that interact with the feed unit. 2. The device according to p. "1, about the t i l a s th e with the fact that the feed unit is made in the form of two carriages, one of which is installed with the possibility of reciprocating movement on the table and is made with a radius protrusion, and the other carriage contains rollers interacting with the radius of the protrusion, and a clamp rigidly connecting it through the sheet with the turn bar. Sources of information taken in 5 attention in the examination 1. Author's certificate No. 512871, cl. In 23 D 33/00, 1976. 2.Druzhinin V.A., Vol5satov V.A. Carver-pressman, 1963, Len0 published, p. 66-68, fig. 34 (prototype). L 37 3S n 2S 7 26 U