MXPA99010024A - Cooling cooker with adjustable coil plate verticalme - Google Patents

Abstract

The present invention relates to apparatus for receiving a continuous series of rings from a hot rolled producer, said apparatus comprising: a) a portable container having: i) a cylindrical side wall arranged vertically open at its upper and lower ends; ii) a base at the lower end of said side wall configured to removably place said container in a coil-forming station, iii) a horizontal shelf projecting inward from the bottom of said side wall, and iv) a core central supported by said shelf, said core being inwardly separated from the interior of said side wall to define an annular chamber between them, said shelf having access openings therein communicating with said chamber; b) a lifting platform in said coil forming station, said lifting platform having support members configured and arranged to pass through the ab access stitches in said shelf, and c) means for vertically adjusting said lifting platform to move said support members through the access openings in said shelf between raised operative positions in which said support members project to said chamber to support a coil thereon by receiving said rings through said open upper end, and a non-operative position below said shelf, which results in said coil being deposited in said anchor;

Description

COOLING COOKER I WITH BOBI NA PLATE NA USTABLE VERTICALLY IN PRIORITIZATION FORMATION This application claims priority of provisional application Serial No. 60 / 106,274 filed on 10/30/98.

BACKGROUND OF THE INVENTION 1. FIELD OF THE INVENTION This invention relates generally to mills that produce hot rolled steel products such as rods, rods and the like, and is related in particular to an improvement in delayed cooling of such products in commonly known insulated containers. as "pots". 2. DESCRIPTION OF THE PREVIOUS ICA TECHNIQUE It is known to form hot-rolled steel products such as rods, rods and the like in helical ring formulations which are accumulated in coil form in insulated pots. The difficulty with such arrangements is that the vertical distance traveled by the rings as they descend to the pots varies considerably from the beginning to the end of a coil formation cycle. This variable falling distance adversely affects the uniformity of distribution and density of rings from the bottom to the top of the coil, thus contributing to the coil instability while also disadvantageously increasing the coil size. The main object of the present invention is the provision of an improved pot and adjustable associated spool holder which operates in coordination to maintain the upper part of the spool being formed in the pot at an optimum substantially constant height. By doing so, the density and distribution of rings is optimized and kept constant substantially from the bottom to the top of the coil, which in turn minimizes the coil size while maximizing coil stability. These and other objects and advantages of the present invention will now be described in greater detail with reference to the accompanying drawings, wherein: BRIEF DESCRIPTION OF THE DIAMETERS Figure 1 is a diagrammatic illustration of the delivery end of a bar mill; Figure 2 is a vertical sectional view through the coil forming station shown in Figure 1, with the lifting platform retracted completely below the level of the roller table; Figure 3 is a horizontal sectional view taken along line 3-3 of Figure 2; Figure 4 is a view similar to Figure 2 showing the lifting platform in an elevated position during a coil forming operation; Figure 5 is another view similar to Figure 2 showing a coil formed completely contained in the pot with the bottom and top insulated covers in place; and Figure 6 is a diagrammatic plan view of the roll table in the reforming station.

DETAILED DESCRIPTION OF PREFERRED MODALI DAD Referring initially to Figure 1, the delivery end of a laminator is shown as comprising a grip roll unit 10 for directing a hot-rolled rod 12 or other similar product to a head. of inclined laying which forms the product in a continuous helical series of rings 16. The rings are received on a conveyor 18 on which they are transported in a non-concentric overlap arrangement towards a reforming station 20. The insulated covers 22 may overlie the conveyor to retard the cooling rate of the rings. In the coil-forming station, the rings fall from the conveyor to an isolated portable container commonly referred to as a "pot" 24 where they meet in a vertical cylindrical coil. As each pot is filled, it is changed to an adjacent station 26 where the coils are allowed to cool to a delayed rate before being eventually removed from the pots.

With further reference to Figures 2 and 3, a pot 24 according to the present invention is shown supported on a roller table 28 in the reforming station 20. The pot has a side wall isolated arranged vertically open at its upper and lower ends. A base 32 as a frame with a central opening is configured to support the pot on the roller table. Segments 34 in the form of something like truncated cake of a horizontal shelf project inward from the inside of the side wall. The internal ends of the shelf segments 34 support precise segments 36 that extend vertically from a central core 38. The core segments 36 are connected at their upper ends by a cover 40. The core 38 is centrally positioned and separated inward from the inside of the side wall 30 to define an annular chamber 42 therebetween. The shelf segments 34 are circumferentially spaced apart from one another to define access openings which communicate with vertical grooves between the core segments 36. Vertical rails typically indicated at 44 are secured to the interior of the side wall 30. The rails project radially inwardly into the annular chamber 42, and as will be explained hereinafter, serve to separate the rings that meet in the pot from the interior of the side wall 30, promoting by this the uniform delayed cooling. As shown in Figure 6, the rollers 46 of the roller table are separated from one another and configured to define a cross-shaped opening 48, whose arms are aligned with the access openings between the shelf segments 34. A lifting platform 50 is positioned below the roller table 28 for vertical adjustment through the cross-shaped opening 48. The lifting platform is generally in the shape of a cross, whose arms 52 are provided with guide rollers 54. The crossed arms 52 are aligned with the cross-shaped opening 48 defined by the rollers 46 of the table, as well as with the access openings between the shelf segments 34 and the vertical grooves between the core segments 36. The lifting platform is vertically adjustable by an appropriate mechanism, an example being a push chain rigid drive 56 of the type provided by Serapid USA, Inc., of Troy, Michigan. In operation, as shown in Figure 4, the lifting platform 50 is projected upwardly into the pot 24, with the rollers 54 co-operating with rails 44 selected to provide a guiding function. The rings 16 are received through the open upper part of the pot. The rings are deposited on the raised platform 50 where they accumulate in the form of a coil around the central core 38. The platform 50 is gradually lowered to keep the upper part of the coil growing at an optimum level "L", thereby maintaining the distance of falling rings substantially constant. At the end of the coil forming operation, the platform descends below the roller table, and in doing so transfers the coil to the shelf segments 34.

It will be seen that the upper end of the central core 38 is separated below the upper edge of the wall 30 to thereby define an upper depression 58. Similarly, the shelf segments 34 are spaced above the lower edge of the wall 30 to thereby define a lower depression 60. After the coil has been completely formed, as shown in Figure 5, upper and bottom insulated covers 62, 64 are respectively placed in the upper and lower depressions 58, 60 to completely enclose the coil inside the pot. It is our intention to cover all changes and modifications for the apparatus described above that do not depart from the spirit and scope of our invention as defined by the appended claims.

Claims (9)

1. REVIVAL DICATIONS 1. Apparatus for receiving a continuous series of rings of a hot rolled product, said apparatus comprising: a) a portable container having: i) a cylindrical lateral wall disposed vertically open at its upper and lower ends; ii) a base at the lower end of said side wall configured to removably place said container in a coil-forming station; iii) a horizontal shelf projecting inward from the interior of said side wall; and iv) a central core supported by said shelf, said core being inwardly spaced from the inside of said side wall to define an annular chamber therebetween, said shelf having access openings therein communicating with said chamber; b) a lifting platform in said coil-forming station, said lifting platform having support members configured and arranged to pass through the access openings in said rack; and c) means for vertically adjusting said lifting platform to move said support members through the access openings in said rack between elevated operative positions in which said support members project to said chamber to support a coil thereon by means of the receiving said rings through said open upper end, and a non-operative position below said shelf, which results in said coil being deposited on said shelf.
2. 2. The apparatus as claimed in claim 1 wherein said shelf is constituted of circumferentially spaced segments defining said access openings therebetween.
3. The apparatus as claimed in claim 2 wherein said core comprises mutually supported ribs supported by and extending vertically from said shelf segments.
4. 4. The apparatus as claimed in claim 3 wherein said ribs are interconnected at their upper ends by a lid. The apparatus as claimed in claim 4 wherein said lid is separated below the upper edge of said side wall to define a top depression configured and removably arranged to receive an insulated top cover. The apparatus as claimed in claim 1 wherein said shelf is separated above the lower end of said side wall to define a lower depression configured and arranged to removably receive an insulated bottom cover. The apparatus as claimed in claim 1 wherein said base is supported on a roller conveyor in said reformer station, said roller conveyor having rollers configured and arranged to provide openings therebetween aligned with the access openings in said shelf. The apparatus as claimed in claim 1 further comprising rail members protruding from the inside of said side wall to said chamber, said rail members being configured and arranged to define a space between the outside of said reel and the inside of said side wall. The apparatus as claimed in claim 8 wherein said lifting platform is guided by said rail members during their vertical adjustment. SUMMARY An apparatus for receiving a continuous series of rings of a hot rolled product includes: a) a portable container having: i) a cylindrical lateral wall disposed vertically open at its upper and lower ends; ii) a base at the lower end of the side wall configured to removably place the container in a coil-forming station; iii) a horizontal shelf projecting inward from the inside of the side wall; and iv) a central core supported by the shelf, the core being inwardly separated from the inside of the side wall to define an annular chamber therebetween, the shelf having access openings therein communicating with the chamber; b) a lifting platform in the coil forming station, having support members configured and arranged to pass through the access openings in the shelf; and c) a mechanism for vertically adjusting the lifting platform to move its support members through the access openings in the shelf between raised operative positions in which the support members project to the annular chamber to support a coil therein. by receiving said rings through the open upper end of the container, and a non-operative position below the shelf, which results in the coil being deposited on the shelf.