SU877276A1 - Apparatus for charging-discharging articles - Google Patents

Description

(54) DEVICE FOR LOADING-UNLOADING OF PRODUCTS

one

The invention of F-ferrous metallurgy is intended for use in pipe-rolling production, mainly in hot rolling stacks.

A device is known for placing billets into a furnace that contains a roller conveyor, a loading mechanism and a device for unloading heated billets l 3 However, the known device does not allow the coasters to be laid in a furnace for heating titanium alloy billets. In this case, such a laying of blanks on the hearth is necessary, since the Gea of the intermediate supports of the system will cause an explosion due to the contact of titanium with the dross on the furnace bottom.

Closest to the proposed technical essence and the achieved result is a device for laying the blanks in the furnace, which includes a roller conveyor, a loading mechanism, a furnace bottom and an unloading mechanism 2.

The disadvantage of this device is its low productivity, since during the transport of supports, especially flat forms, and their installation on the furnace bottom, manual operations are required. When heating billets from alloys, the latter must be heated on stainless steel supports, which are pre-laid on the furnace bottom. This prevents the metal of the workpiece from contacting the scale and, consequently, from the possible explosion.

Claims (2)

IS Round bottom holders are not stable and do not exclude the failure of blanks between them, which can lead to contact with dross. The known device does not allow the laying and unloading of supports from the furnace, if it is necessary to switch to heating in the ring furnace, blanks of titanium alloys, which leads to a loss of permeability of labor. In this case, cool the oven, clean the hearth from the dross and heat it again, which reduces productivity. The purpose of the invention is to expand technological capabilities and increase productivity. This goal is achieved by that 4JO device for loading and unloading products, containing live rolls and mechanisms for loading and unloading products and stands, equipped with a device for feeding stands on a loading roller table, made in the form of a movable platform on which a monorail with paired telphers is mounted and suspended on them traverse with capture. Fig. I shows a device for loading and unloading products in the plan; figure 2 - section aa in figure 1; fig.Z - section BB in figure 1; figure 4 - section bb In figure 1 ;, on fig.Z - section GG in figure 1. The device for loading and unloading products consists of a roller table 1 with a tilting rack 2. Above the roller table is installed a loading mechanism 3 adapted to move along the axis of the roller table to an annular furnace. A grip 4 for workpieces and stands is fixed on the console of the loading mechanism. In the annular furnace 5, it is installed rotating under 6. At the discharge zone of the furnace, there is a mechanism 7 for discharging blanks and stands from the furnace. Structurally, the unloading mechanism does not differ from the loading one and is equipped with a similar gripper 8. The loading mechanism is equipped with a roller table 9 leading to the mill 10. The loading mechanism has a platform I1 with a drive 12 moving it. The platform is located on inclined guides 13. A monorail 14 with paired telphers 15 is mounted on the platform in the zone of the furnace opening window, on which the yoke 16 is suspended, at the end of which the grip 17 is installed (figure 2. The grip is made in the form of scissors, allowing fixation movement and the installation of supports 1 Device for loading and unloading products works as follows: When switching to manufacturing titanium alloy materials, the pallet with the rates of 18 units) T crane 6 of the workshop to platform 11. Then drive 12 to the platform m so that one of the rows of supports nahodils under monorail 14. By including hoists 15 is lowered crosspiece 16 and 17 by capturing one of the fixed supports. Then it is lifted and, moving the hoist along the monorail, brings the stand to the roller table 1, lowers it and removes the grip 17. After this, the whole mechanism is returned to the platform behind the next stand, repeat the above operation. The loading mechanism 3, moving along the roller table 1, with the help of grip 4, establishes the supports 18 on the furnace 6 bottom 5. After two stands are installed, symmetrically with respect to the ring furnace, the bottom 6 is turned one step equal to the distance between the blanks and the next batch is placed on the bottom furnace supports (Fig. 1. Then, blanks are placed on stands alternately. To do this, the latter are fed one by one from the inclined rack 2 to the roller table 1 and the gripper 4 of the loading mechanism 3 is placed onto supports 18 (fkg, 5). After heating, the blanks using the gripper 8 and the unloading mechanism 7, they are fed to the live rolls 9 and then rolled to the mill 10 after it is finished. After the production of titanium pipes is finished, the stands are removed from the furnace with the same mechanism, served by the live rolls to the crane service area and collected again next to the platform I (at the regular procKTka of pipes and 3 titanium alloys). Thus, the line provides a continuous technological process in the preparation of billets for rolling from titanium alloys. There is no need to stop the ring furnaces, cool them, clean the bottom of the scale and the subsequent heating, i.e. eliminated unproductive stops. Locating the blanks at the upper level of the heating zone (above the bottom 7 reduces the heating time. There is also no need to build an additional furnace specifically for heating titanium-containing alloys. The expected economic effect from the introduction of the invention is about 500 thousand rubles per year. Formula of the invention for loading and unloading products, mainly, into an annular furnace, containing live rolls and mechanisms for loading and unloading products and stands, characterized in that, for the purpose of distributing technological of productivity and increase in labor productivity, it is equipped with a device for feeding stands on a live loading conveyor, made in the form of a movable platform, on which a monorail with paired hoists is mounted and a traverse with a gripper suspended on them. Sources of information taken into account during examination 1 Osad Ya.E. and others. Modern pipe workshops. M., metallurgi., 1977, pp. 70.71. 2. USSR author's certificate number 676628, cl. C 21 D 9/08, 1979. (rig 2 6-5 (Reg. Tf 3azomoS- IB f (ff (.S