SU91431A1 - Automatic device for transferring heated spring leaves and other similar parts from a continuous furnace to a bending and hardening drum - Google Patents

Description

The subject of the invention is an automatic device for transferring heated spring leaves or other similar parts from a furnace furnace to a bending and quenching drum.

In used plants for bending and quenching spring sheets, spring sheets heated in methodical quenching furnaces are manually fed to the bending quenching drum by means of pliers and its stamp is stamped with appropriate centering and subsequent activation of the drum mechanism by pressing the pedal.

The productivity of the methodical furnaces is high, the complexity of manual operations is comparative and the position of the operator between the hot furnace and the bath with quenching liquid creates very difficult working conditions.

In the described device, all the processing operations of the heated billet are fully mechanized and automated using an automatic device that replaces the manual labor of the operator.

The drawing shows a diagram of this device installed on the foundation between the exit part of the hardening furnace and the bending-hardening drum.

The operation of the device is synchronously connected with the movement of the blanks in the furnace by means of a chain transmission from the furnace drive to the camshaft / via sprocket 2.

During operation, the device mechanism performs the following operations: gripping the workpiece on the kiln chain, transferring the workpiece while simultaneously turning it over, pushing the workpiece into the bending hardening drum, centering the workpiece in the powder burner, and turning on the bending quenching drum.

The gripping of the blanks on the furnace chain is made by pliers 5 fixed on the shaft 4. The gripping of the blanks is carried out by their opposite movement on the chain with the tongs in the extreme left position of the sliders 5 of the portable mechanism. .-

No. 91431-2 -

The turning of the mites is carried out by gears 6 fixed on the shaft 4, which engage with the toothed sectors 7, which are free to sit on the shaft.

The rotation of the sectors 7 occurs under the action of the rollers 8 moving along the track tracks selected in the frame of the device.

To make the rotation easier, the weight of the mite with blanks is balanced by two springs I

The two-way drive of the reciprocating motion of the sliders is carried out by a differential-rack drive. Two movable rails 10 receive a reciprocating movement from the toothed sectors //. Gears 12 interlock with movable rails 1.0, which transmit rotation through gear shaft m / 5. Gears 13 interlocking with the fixed rails 14 impart reciprocating motion to the sliders 5 and the pincers 3 associated with them.

The rotation of the shaft 15 is transmitted from a pinion 16 which is rigidly fixed thereto, which engages with the toothed sector 17.

The oscillatory rotation of the sector (7) about the axis (5) occurs under the action of cams 19 and 20 of forward and reverse travel, fixed on the shaft /.

The roller 21 of the reverse cam 20 is pressed against it by the action of a spring 22 located at the other end of the lever 23.

In the extreme right position of the sliders of the portable mechanism, the tongs are stopped against the dies of the bending drum to push the blanks into the dies.

Pushing out the workpieces from the tongs is produced by the collider 24. The latter is driven by the cam 25, the lever 2.6, the rod 27 and the eccentric 28 mounted on the shaft 29. The forward motion of the push rod with the clamping of the blanks to the stop plates of the dies is provided by two springs 30 acting on the drive levers pusher

The centering of the workpieces in the chips is performed by the centering pushers of the dies under the action of the centering levers 31, the swinging movement of which is carried out from the shaft / and the hinged-lever spatial mechanism located in the rear traverse of the frame of the device. The reverse motion of the levers 31 occurs under the action of two springs.

The activation of the bending and tempering machine is carried out during the return stroke of the sliders of the portable mechanism after the withdrawal of the collider and centering levers.

The bending drum is switched on by a lever transmission to the pedal lever from a cam mounted on shaft 1. When the pedal lever returns to its initial position, the drum automatically turns off after turning one section.

Subject invention

Claims (2)

1. An automatic device for transferring heated spring sheets and other similar parts from a furnace to a bending and quenching drum, characterized in that all working operations, including gripping the blanks from the furnace, transferring them to the drum, pushing them and centering them in the stamp, and the inclusion of a drum for performing a duty cycle, kinematically associated with the turning of the camshaft receiving this movement from the drive shaft of the chain mechanism of the hardening furnace. 2. The automatic device according to claim 1, characterized in that the gripping of the workpieces is carried out by pincers