SU1013371A2 - Apparatus for successive feed of square blanks - Google Patents

Abstract

DEVICE FOR DAILY FEEDING OF RECTANGULAR PREPARATIONS according to ed. St. No. 804558, characterized in that, in order to increase the reliability of the device and its performance, it has guides parallel to the guides of additional followers mounted at the ends of the lifting rack in the course of the process and installed in guide carriages with vertical rollers for alignment of the foot of the blanks; at the same time, at least two guides with carriages are installed behind the lifting racks during the technological process.

Description

The invention relates to the manufacture of building metal structures and can be used in any industry where a single piece of rectangular billets is required. According to the main author. St. No. 804558 a device is known, comprising a lifting rack for workpieces, pushers arranged above it and a conveyor of horizontally and vertically mounted rollers, an additional rack for workpieces with an emphasis, mounted behind the lifting rack during the process and parallel to the conveyor, and additional pushers with direction above the additional rack, perpendicular to the main pushrods 1. However, the billet folder (for example, rectangular pipes) mounted on the lifting rack is During the operation of the device, it may be scattered on the sides of the rack, and the supply of blanks to the additional rack will be impossible. In addition, the blanks folder on the lifting rack must be supplied with a bound, in order to protect it from spilling, for which the operation of wrapping the blanks folder with tape at three points along its length is necessary. The purpose of the invention is to increase the reliability of the device and its performance. The goal is achieved by the fact that the device for single-piece feeding of rectangular blanks has guides arranged parallel to the guides of additional pushers mounted at the ends of the lifting shelves along the process and mounted in guide carriages with vertical rollers for aligning the stack of blanks, while following the lifting a rack in the course of the process installed at least two guides with carriages. FIG. 1 shows the device, a general view; in fig. 2 - the same, top view; in fig. 3 shows section A-A in FIG. 2; in fig. 4 shows a section BB in FIG. one; in fig. 5 shows a section B-B in FIG. 4. The device for single-piece feeding of rectangular blanks contains a lifting rack 1 installed on the frame for blanks 2. Parallel to the geometrical axis of the lifting rack 1 there is a conveyor made of horizontal 3 drive and vertical 4 non-drive rollers. Perpendicular to the axis of the conveyor there are pushers in the form of driven Katkov trolleys 5 and 6 with a lever 7 rotatable around axis 8. For the lifting rack 1 along the process and parallel to the conveyor an additional rack is installed in the form of non-driven rollers 9, which is a continuation of the lifting rack 1. At the end of the additional rack there is a fixed stop 10. The cross beams 11 are installed between the additional rack for the workpieces and the conveyor. A pusher 12 is installed above the lifting rack 1 parallel to and conveyor. The pusher 12 is made in the form of a roller trolley moving along the guides 13 by means of chains 14 and 15, enveloping tension 16 and drive 17 sprockets from the drive 18. Katkov trolley 12 has a lever 19, swiveling around a horizontal axis 20. A hard stop 21 deterrence from moving the remaining rows of blanks forward while the top row is being fed to the additional rack. Along the lifting rack 1, along the course of the technological process, parallel to the guides 22 of the additional pushers, there are located guides 23 at the ends of the lifting rack 1, in which carriages 24 with vertical rollers 25 are installed to align the stack of workpieces, while the lifting rack is equipped with at least two guides 23 with carriages 24. The carriages 24 are displaced from the spindle nuts 26 moved along the screw 27 with the right and left cutting. The nuts 26 are enclosed by cylindrical collars 28 with pins 29 and 30. The pins are mounted in brackets 31 and 32 rigidly mounted on carriages 24. The drive 33 rotates the screw 27. The installation, before the stop 21 and after the lifting rack 1, has two guides 23 with vertical rollers vertical twin rollers 25 is necessary to eliminate the fan-shaped feed of blanks to the additional rack 9. The device operates as follows. A stack of blanks is laid on the lifting rack 1 by a hoisting vehicle (for example, a bridge or magnetic crane) (the blanks are shown in dash-dotted lines). At the operator's command, from the control panel, the vertical rollers 25, moving towards each other, center the stack of blanks along the axis of the lifting rack, after which the lifting rack 1 is lowered to its lowest position. In this case, a command is received to a sensor (not shown) for starting the roller carriage 12 forward. Moving to the side of the conveyor, the roller 12 with its pivoting lever 19 removes the entire upper row of blanks and delivers it over the non-driven rollers 9 to the fixed stop 10. At the same time, the vertical rollers 25 keep the stack of blanks from lateral spilling and from the fan-like supply to the additional rack 9, and the hard stop 21 keeps

in the direction of feeding the upper row and all the remaining rows of blanks.

A sensor (not shown) of the stop 10 turns off the drive of the 18 -Katkovoy cart and gives the following commands: movement of the roller cart 12 back to its original position, raising the rack 1 to the height of the next row of workpieces and starting the roller trolleys 5 and 6 forward. transporting the entire range of blanks from non-driving rollers 9 along cross beams 11 to horizontal rollers 3. Transportation is carried out with the help of pivoting levers 7 ..

As soon as the first billet reaches the rollers 3, a command is issued, from a sensor (not shown) located between the rollers 3, to stop the carriages 5 and 6 and to start the rollers 3. The billet is separated from the row and moves forward and towards the vertical rollers 4 When releasing the rollers 3 from the workpiece, a command is issued to start the carts 5 and b forward, and the rollers 3 are given

following preparation. The cycle is repeated. After the last workpiece has been fed to the rollers 3, the roller carriages 5 and 6 return to their original position and give a command from a sensor (not shown) to start the carriage 12 forward. The next set of blanks are delivered and the cycle repeats.

After releasing the lifting rack I from the blanks, the vertical rollers 25 are consumed, and a new bundle of blanks can be laid on the rack 1.

The proposed device allows stacking a stack of blanks that are not necessarily aligned in length, not necessarily exactly along the axis of the rack and more extended by a range of lifting means onto the lifting rack. In addition, a fan-like supply of blanks to an additional rack and lateral spreading of blanks during operation of the device is excluded.

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Claims (1)

DEVICE FOR PIECE FEEDING OF RECTANGULAR BILLETS by ed. St. No. 804558, characterized in that, in order to increase the reliability of the device and its performance, it has guides located parallel to the guides of the additional pushers, mounted from the ends of the lifting rack during the process and installed in the guides of the carriage with vertical rollers to align the stack of workpieces, at the same time, at least two guides with carriages are installed behind the lifting rack during the technological process.