SU1268257A1 - Arrangement for separating sheet blanks from a stack and feeding them to the press - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used to separate the sheet from the foot and feed it to a processing machine, such as a press. The aim of the invention is to simplify the design. A cassette with sheet blanks is installed under the roller conveyor containing longitudinal rulers with rollers. A traverse consisting of two beams is lowered down until the suction cups mounted on one of the beams come into contact with the workpiece. At the same time, the power cylinders spread the longitudinal rulers with the rollers to freely move the workpiece to the plane of feeding it to the drive rolls. After gripping the workpiece, the yoke rises up to the stops. One of the traverse beams begins to move toward the drive rolls. In this case, the power cylinders return the longitudinal rulers with rollers to their original position. The workpiece enters the opened Bjiji or roll feed of the press, turns off (vacuum suction cups are inserted and the rotation of the roll feed is activated. 7 Il

Description

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The invention relates to the processing of metals by pressure and can be used to separate the sheet from the foot and feed it to the processing machine, in particular to the press.

The purpose of the invention is to simplify the design.

FIG. 1 schematically shows the device, a general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 shows the node I in FIG. one; in fig. 4 is a view B in FIG. 2; in fig. 5 is a kinematic diagram of the drive of adjustments of the roller tables relative to each other (mixing and breeding of rulers bearing rollers); in fig. 6 — node AND in FIG. one; in fig. 7 is a section B - B in FIG. one.

A device for separating sheet blanks from the foot and feeding them into the press comprises a frame 1 with a table and a lifting mechanism 2 and adjusting the level of feed to the roller feed 3 of the press. The axes 4 of the rollers 5 are installed in longitudinal lines 6, fixed through the axes 7 on one of the leads 8, rigidly fixed, in turn, on one of the ends of the shafts 9, on the second ends of which the second leashes are also rigidly mounted 10. Leashes 8, shafts 9 and the leads 10 are hingedly connected to the rods 11, and the latter are rigidly connected to the rods 12 of the power cylinders 13, which are connected to the threaded parts 15 and 16 through the two-subrillaries 14 and the nut 17, which have different thread directions, surrounding the corresponding threaded ends of the threaded details 15 and 16.

In the upper part of the frame 1, cylindrical guides 18 are mounted mounted in a crossbar 19 on which the cylinder liner 20 is mounted. The rod 21 of the cylinder 20 is connected to a crosshead mounted vertically on cylindrical tracks 18. The traverse is made in the form of two beams 22 and 23. Earring 24 is hingedly connected to beam 23, which carries the gripping bodies 25 with suction cups 26 and the stem 21 of the power cylinder 20. Beam 22 has a sensor 27 controlling the stop into the workpiece with electrical end switches L 28 and 29. On the cross member 19 an electric limit switch 30.

In the middle part of the frame 1 a transverse table (not shown) is mounted with guides made in the shape of two beams with additional rollers 32 installed between their shelves on the axes 31. The cassette 33 is installed on the rollers 32 with the workpiece 34 being moved to its original position movement mechanism (not shown). Also shown are the stops 35 for restricting the upward movement of the beam 22. In the front part of the bed there is a pair of drive rolls 36 and 37 for feeding the strip to the roll feed 3 of the press. Also shown is a limit switch 38, which fixes the location of the beam 23 in the leftmost position (FIG. 2), and the springs 39 moving the beam 23 relative to the beam 22.

The device works as follows.

After the cassette 33 with sheet blanks 34 is installed, under the rollers 5, the energy carrier is fed into the power cylinder 20. A traverse consisting of beams 22 and 23 is lowered down until the suction cups 26 touch the upper plane of the workpiece 34 located in the cassette 33 at the disassembly position of the blanks. In this case, the sensor 27 for monitoring the stop into the workpiece turns on the limit switches 28 and 29, after which the traverse is braked by connecting throttle (not shown) on the air line from the power cylinder 20. Simultaneously with the supply of energy, it is fed into the rod cavity of the power Cylinders 13, which, by acting with their stems 12 on rods 11, drivers 10 and 8, rotating them around shafts 9, spread out the longitudinal rulers 6 with rollers 5 to freely move the sheet 34 to the plane of their supply to the drive rolls 36 and 3 7

During the movement of the crosshead, its beam 22, both when it is lowered and raised, moves vertically strictly along the guide rails 18, the beam 23 due to its hinged connection with the shackle 24 with the stem 21 of the power cylinder 20 after the beam 22 stops at the stops 35 moves into horizontal position.

When the beams 22 and 23 move together, the beam 23, in addition, under the influence of the spring 39, the shackle 24 connected to the choke 21 of the power cylinder 20, moves (Fig. 1) to the right, and when it is raised, vice versa, i.e. .

When the suckers 26 reach the plane of the blanks, their cavities are connected to a vacuum pump (not shown) and the billet is captured by them. After the billet is gripped by the suction cups 26, the direction of energy carrier supply to the cylinder 20 changes. And the beams 22 and 23. With the suction cups 26, the billet 34 starts to lift up (the longitudinal lines 6 with the rollers 5 are in a diluted state at this time, allowing free passage billet) up to the stop 35 of the beam 22, after which the beam 23 moves already relative to the beam 22 to the left.

Claims (1)

At the same time, when the beam 22 of the stops 35 is reached, the direction of supply of the energy carrier to the power cylinders 13 and the longitudinal bars 6 with the rollers 5 occupy the initial position set across the width of the workpiece by the nut 17 changes. Thus, when the rollers 5 have their original position, the beam 22 abuts its upper plane in the stops 35 of the crosspiece 19, and the rod 21 of the power cylinder 20 continues to move upwards, and the beam 23 moves to the left, transferring the workpiece 34 to the opened rolls. As soon as the workpiece enters the rolls 36 and 37 or in the roll feed, the rolls are closed and the suction cups are disconnected from the vacuum pump, and the workpiece 34 rests completely on the rolls 5, ready for further transportation by its rolls 36 and 37 to the roll feed 3 of the press. After the workpiece leaves the limit switches during transportation to the press, the limit switches 28 and 29 are triggered, which give the command to change the direction of supply of energy to the power cylinders 13 and 20 and the cycle repeats in the described sequence. The limit switch 30 fixes the upper position of the beams 23 and 22, and the end with: - - Oo ,, ОО „g ,, and ,, the bottom switch 38 fixes the leftmost position of the beam 23 and disconnects the suction cavities from the vacuum pump, gives the command to The closure of the rolls 36 and 37. The required size across the width of the workpiece (the distance between the shoulders of the rollers 5 in the closed, initial position) is achieved by rotating the nut 17, in connection with which the drive (not shown) can automate the adjustment process. Apparatus of the Invention A device for separating sheet blanks from a foot and feeding them into a press comprising a frame, a crossmember, cylindrical guides mounted on the frame and connected to the crossbar, a table for accommodating a movable cassette with a stack of blanks arranged to reciprocally move perpendiculars the direction of the workpiece supply traverse with gripping bodies, made in the form of two beams located one inside the other with a drive of relative reciprocating movement internal beam in the direction of supply of blanks, roller table for moving blanks placed above the cassette and containing longitudinal rulers with rollers and a drive of reciprocating movement of the rulers perpendicular to the direction of supply of blanks, characterized in that, in order to simplify the design, the drive is airborne; ПГ) ПТ11Рни KNGTPKUPII. The DVIVD of the reciprocating movement of the rulers perpendicular to the feed direction of the blanks is made in the form of two power cylinders and two threaded elements with right and left threads connected by a nut, and the stem of each power cylinder is connected by means of a two-pole connecting rod with a corresponding longitudinal ruler, and the body each power cylinder is connected by means of a two-way connecting rod with a corresponding threaded element. J5 / ff } 3 ipi / fy / 5-I FIG. g W FIG. // BUT 7 6 W f2 / Fig 6 / 7 9, 15 FIG. 7