SU1018762A1 - Apparatus for feeding sheet blanks to working zone of press - Google Patents

Abstract

DEVICE V FEEDING blanks to the working area PRESS comprising mechanism movable workpieces foot pickup mechanism preform oblique loading table and mounted on the rolling bearing with the possibility of reciprocating movement in fixed guide carriage with an arm carrying the gripping bodies, wherein that, in order to increase productivity and reliability, the carriage is equipped with pivotally mounted on its front plane symmetrical levers with rolling bearings, while the bracket with the gripping bodies are pivotally connected to the ends of the carriage arms on which the rolling bearings are mounted. (L

Description

The invention relates to the processing of metals by pressure, in particular, to the automation of sheet metal forming and can be used to load presses with large-sized blanks. A device for feeding sheet blanks is known, which contains a magazine with a stack of blanks located on a frame, a magnetic flux for separating adhered sheets, a mechanism for removing the upper sheet from the foot with vacuum suction cups, supporting plates for a sheet with pneumatic actuator, and a carriage located above the foot, driven into the return translational movement in the horizontal plane on the rolling bearings along two fixed guides 1. The disadvantage of the device is that it does not provide accurate positioning of the rear axle. Application in a die press. The device for feeding sheet blanks into the working area of the press, containing a mechanism for moving a stack of blanks, a mechanism for removing billets, an inclined loading table and mounted on rolling bearings with the possibility of reciprocating movement in the stationary carriage guides, is closest to the invention in technical essence and the achieved result. with the bracket carrying the gripping bodies 2. A disadvantage of the known device is the complexity of the design, which reduces the reliability of its operation, as well as spine changeovers when switching to forging parts of different sizes. The purpose of the invention is to improve the performance and reliability of the device. This goal is achieved by the fact that in the device for feeding sheet blanks into the working area of the press, which contains a mechanism for moving the stack of blanks, a mechanism for removing the blanks, an inclined loading table and mounted on rolling bearings with the possibility of reciprocating movement in fixed guides the carriage with a bracket carrying the gripping bodies, the carriage is provided with symmetrical levers with a rolling support hinged on its front plane, while the bracket with the gripping bodies is hingedly connected to Knives of the carriage levers on which the rolling bearings are installed. FIG. 1 shows the device, a general view; in fig. 2 - the same, side view; in fig. 3 shows the side carriage of the device; in fig. 4 - the same, top view; in fig. 5 is a kinematic flow carriage diagram. The device contains a movable trolley 1, equipped with a hydraulic lifting platform 2, which allows it to withstand a constant level of removal of the top blank from the foot 3, a welded frame 4 with a mechanism for removing the upper blank with suction cups 6 located on it, into the zone of operation of which the movable cart , a magnetic roller table 7, an inclined table 8 downloads, a feed carriage 9 with a pusher 10, pincers 11 and vacuum grippers 12, driven by an electric motor through a planetary drive rod food The feed carriage is equipped with a special bracket 13 carrying pliers 11 and clamps 12 with a mechanism 14 for adjusting their overhang, which is attached to the ends of the levers 15 and 16 installed in the front part of the carriage with guide rollers 17. The feed carriage can move along C-shaped guides 18, with special copiers 19 mounted on them on rollers 20 and 21 with horizontal and vertical axes, respectively 22 and 23. The device operates as follows. Stop 3 of the workpieces is mounted on the hydraulic lift platform 2 of the movable carriage 1, which rolls into the working zone of the mechanism 5 for removing the upper workpiece. The upper workpiece is removed by vacuum suction devices 6, which raise it to the magnetic roller table 7. The workpiece is moved to the side of the press by a pusher 10. Next, the workpiece falls on an inclined loading table 8. The table rises to a horizontal position, the workpiece is covered with pliers 1 1 and vacuum grippers 12 of the feeding carriage 9. The carriage travels towards the press. At the end of the loading stroke, the rollers of the levers 15 and 16, interacting with the copiers 19, can lower the levers with the tongs 11 and the grippers 12 attached to them with the workpiece and, thus, stack the workpiece into the stamp. At the same time, the next workpiece, which is located on the magnetic roller table 7, the pusher 10, which is connected to the feeding carriage, is pushed onto the loading table. The use of the invention improves the performance and reliability of the device for feeding sheet blanks into the working area of the press.

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Claims (1)

DEVICE> FOR SUBMISSION OF SHEET PREPARATIONS IN WORK PRESS AREA, comprising a mechanism for moving a workpiece foot, a mechanism for removing a workpiece, an inclined loading table and mounted on rolling bearings with the possibility of reciprocating movement of the carriage with a bracket carrying gripping bodies in fixed guides, characterized in that, in order to increase productivity and reliability, the carriage is equipped with symmetrical levers pivotally mounted on its front plane with rolling bearings, while the bracket with gripping bodies is pivotally connected to the ends of the caret levers weights on which the rolling bearings are installed. Fig! I ΟΙ 8762