SU555951A1 - Device for transporting sheet material along the line of presses - Google Patents

Description

one

This invention relates to the field of sheet metal forming.

A device for transporting sheet material along the line of presses, containing a clamshell, driven from the drive shaft in the longitudinal direction through a rack and pinion gear and in the transverse direction through a cam mounted on the drive shaft, gear with a spring loaded from the power cylinder, interacting with a cam, as well as through a crank mechanism.

The known device does not allow separating the sheet material from the foot and feeding it into the clamshell lines, and also does not provide the possibility of reaching the extreme positions of the clamshell lines during longitudinal movement.

In order to increase productivity, the device is equipped with a mechanism for separating the sheet from the foot and feeding it to the clamshell, kinematically connected to the drive shaft by means of a worm gear, the worm wheel is mounted on the drive shaft, and the worm shaft is kinematically connected with an electric motor; in addition, the device is equipped with an additional crank-crank mechanism, transmitting movement from the drive shaft rack and pinion gear.

FIG. 1 shows the proposed device, in a perspective view; in fig. 2 - kinematic diagram of the device.

A device for transporting sheet material along the line of presses contains an electric motor 1, a clutch of limiting moment 2, a reducer 3, a worm gear 4,

including a worm shaft 5 with a Kondov output on two sides of the transfer case, transmission shaft b, crank 7, connecting rod 8, rail 9, a pair of cranks 10, carriages 11, clamshell 12, which are indicated

the details set the reciprocating longitudinal movement, the pneumatic cylinder 13 connected to the strap 14 resting on the fist 15 mounted on the shaft b, the rail 16, gears 17 and 18, which are in mutual

gearing, transmission shaft 19, gearboxes 20, cranks 21, which are connected by rods 22 to rails 23 of gear drive 24, which are in engagement with rails 25, carriages 26, electromagnets 27, transmission shaft 28, which on one side is connected to the output from the worm gear 4 end of the worm shaft 5, and on the other hand with the end of the worm shaft 29, which forms a worm pair with the wheel 30, crank

31, connecting rod 32, crank 33, shaft 34 connected by couplings 35 with sprockets 36 fixed on it, chains 37, sprockets 38 mounted on an axis of frame 39 with a rotary shaft 40, sprocket 41 fixedly mounted on body 42, sprocket 43, foot blanks 44, piece blanks 45, wiring 46, command devices 47, chain transmission 48 and sprocket 49.

The device works: following, im image.

From the electric motor 1 through the clutch of the limiting moment 2 and the gearbox 3, the movement is transmitted to the worm shaft 5 of the worm gear 4, distributed to us, it moves in three directions:

Longitudinal movement of the clamshell 12 is obtained from the low-speed transmission shaft 6 of the worm gear 4, the end of which is equipped with a crank 7 connected to a connecting rod 8, transmitting reciprocating movement to the rail 9, from which this movement is transmitted to a pair of cranks 10 through a gear that is her in gearing. The crankshafts 10, through the connecting rods, transmit the movement to the carriages 11, on which the clamshell lines 12 are installed, having freedom of movement relative to the carriages 11 only in the direction transverse to the press line. Krivoshchi-pono-crank mechanisms in this transfer provide some carriage carriage And in their extreme positions;

transverse movement of the clamshell bar 12 is obtained from the cam 15 of the worm gear 4, which sets the order of movement through the bar 14 to the rail 16 connected to the pneumatic cylinder 13, which constantly presses the bar 14 to the profile of the cam 15. When moving, the bar 16 rotates in engagement with gears 17 and 18 there and between them. Gear 18 is mounted in a worm gear 4 on the transmission shaft 19, which drives cranks 21 mounted on them through gearboxes 20, connected by connecting rods 22 to rails 23, gears 24 that engage with rails 25 . Thus, as the rail 23 moves, the rail 25 moves in the opposite direction. Carriages 26 are connected to slats 23 and 25, in which clips 12 are mounted in the guide rollers. When the carriages 26 move across the longitudinal movement of the workpieces, the grippers 12 can freely move in the longitudinal direction.

The reciprocating motion of the electromagnets 27 of the device for removal of blanks from the foot along the arc of a circle is performed as follows. The transmission shaft 28 connected to the worm shaft 4, the movement is transmitted to the worm 29, which rotates the wheel 30 and the crank 31. Through the connecting rod 32 and the crank 33 a reverse vrasive movement is transmitted to the shaft 34, sections of which are connected by couplings 35. Sprockets 36, led the

on shaft 34, through chains 37 and sprockets 38 provide reverse rotational movement of frame 39, on rotating axis 40 of which electromagnets are mounted in a vertical direction movably. Constant horizontal position of working surfaces of electromagnets 27 is provided by rigid mounting of sprocket 41 to housing 42 and connecting it with a chain with an asterisk 43 mounted on the rotating axis 40 of the frame 39.

A stop of the blanks 44 is fed to the loading device by some transport device. Removing the foot 45, the workpiece 45 is placed by the electromagnets 27 of the loading device on the supply wiring 46, which is moved by means of grips (not shown) mounted on the clamshell lines. The dies of the Presses are installed in the spaces between the leads 46, and their working surfaces coincide with the surface of the wires.

The control of switching on m presses is carried out from the command devices 47, driven via chain transmission 48 and sprocket 49 from shaft 6.

Due to the rigid connection between the elements of the device for removing the blanks from the foot and transporting them along the line of presses, carried out by a worm gear, high reliability and stability of operation of all elements of the device are achieved, eliminating the possibility of mismatch in their work. This reduces line downtime for adjustments and adjustments and repair costs.

Claims (3)

1. A device for transporting sheet material along the line of presses, containing clamshell, driven from the drive shaft in the longitudinal direction through a rack-and-pinion gear and in transverse direction through the cam mounted on the drive shaft, rack-and-pinion gear with spring-loaded from power cylinder rail and interacting with the cam, as well as through a crank mechanism, characterized in that, in order to increase productivity, the device is equipped with a sheet separation mechanism Foot and supplying it to grab the line kinematically associated with privodpym shaft via the worm gear. 2. The device according to claim 1, characterized in that the worm wheel of the worm gear mounted on a drive shaft, and a worm shaft is kinematically connected with an electric motor. 3. The device according to claim 1, characterized in that, the purpose of providing the opportunity In the extreme positions of the grab rulers during longitudinal movement, the device is equipped with an additional crank mechanism, which transmits movement from the drive shaft to the rack and pinion gear. 5 Sources of information, taken into account in the examination: 6 1. Patent of Germany No. 1271067, cl. 7c-43/05, 1975.