CS243247B1 - Steel sheamless flasks' half-finished products hot making device from dimension stock - Google Patents

Abstract

The solution is to increase material savings and energy while reducing handling operations. This purpose is achieved by arranging the device so as to extrude the press (6) connects from one side a stacker (5) and a descaling device (3) provided button (lj and inter-operative from the other side) a rotary manipulator (10) provided with a sliding work arm (7), which can be moved its second working position extends into the axis a broaching press (11) arranged next to it extruder (6) \ t

Description

The purpose of the solution is to increase material and energy savings while reducing the number of handling operations. This is accomplished by arranging the extruder (6) on one side with a stacker (5) and a descaler (3) provided with a pusher (1) and on the other side with a rotary manipulator (10) equipped with a retractable working arm (7) ), which in its second operating position extends into the axis of the extruder (11) arranged next to the extruder (6).

The invention relates to a device for the production of hot-finished steel blank blanks from blank and solves material and energy savings while reducing the number of handling operations.

Until now, a steel seamless bottle blank has been manufactured by first rolling a tube on a rolling mill. This is followed by heating and forging the bottom of the hammer. Another separate operation is the further heating and calibration of the bottom, which is carried out on a friction press using a calibration mandrel.

The disadvantage of this process is the relatively high metal and energy consumption, the high noise level and the necessity of a relatively high number of operators of the individual devices, which are in addition exposed to considerable radiant heat. A disadvantage is also the relatively high weight of these blanks, since only tubes with a relatively thick wall can be produced on the rolling mill. Another disadvantage is the need for a significant number of handling operations during manufacture.

It is also known to produce seamless bottle blanks in which the blank is first rammed into a round block, which is then extruded on the extrusion press and then stretched on the extruder. The last operation is then a reduction to form a bottle blank. The disadvantage is the necessity of a relatively large number of machines that are difficult to set up in the line. Also, the disadvantage is the need for length additions for the reduction operation. Another disadvantage is the relatively high maintenance costs of the individual machines.

These disadvantages are overcome by the hot-melt steel semi-finished product blanks of the blanks according to the invention, consisting of an extruder and a broaching press. It is an object of the invention that the extruder is connected on one side by a pusher and a descaling device provided with a pusher and on the other side by an interoperative rotary manipulator provided with a retractable working arm which extends in its second working position.

An advantage of the device according to the invention is that the number of operators is reduced with fewer handling operations and metal savings. It also has the advantage of achieving energy savings and improving operating conditions for the operator.

In the accompanying drawing, an exemplary embodiment of a line according to the invention is shown schematically.

The apparatus for manufacturing hot-finished steel seamless blanks from blanks in an exemplary embodiment according to the invention consists of a descaler 3 before which the end of the conveyor 2 of the billet blank cuts. Next to the descaling device 3, which includes a push button 1, a pallet of cold blanks is established. The descaler 3 is followed by a stacker 5 and an extruder 6 provided with a rotating plate for the use of ramming and re-extrusion pins. In front of the extruder B is a pallet of 8 scrap. On the other hand, the extruder 6 is connected to an in-process rotary manipulator 10, with a retractable working arm 7 provided with tongs at its end. In its second working extreme position, the end of the working arm 7 extends into the axis of the broaching press 11 arranged adjacent to the broaching press B. The blasting press 11 is connected to the exit conveyor 9.

The billet billet is heated in an induction heater, conveyor 2 is conveyed to a descaler 3 into which it is pushed by the pushbutton 1, if the billet does not have the desired temperature it is dropped into a pallet 4 of cold billets. Then the blank is inserted into the extruder 6 by the pusher, where it is upset and re-extruded. Any scrap is dropped into a palette of 8 scrap. By the intermediate manipulator 10, the blank is removed from the extruder B, rotated 90 ° and inserted into the extruder 11 where it is elongated to the desired wall thickness and a shaped concave or convex bottom. After being removed from the broaching press 11, the blank is placed on the conveyor 9 by which it is conveyed to the cooling grid.

Claims (1)

přkdmet Apparatus for producing hot-rolled seamless steel cylinders from blanks, consisting of an extruder and a broaching machine, characterized in that the extruder (6) is connected on one side by a stacker (5) and a descaler (3) provided with a press (1) on the other side, an in-process rotary manipulator (10J) provided with a retractable working arm (7J), which in its second operating position extends into the axis of the extruder (11) arranged next to the extruder (6).