CN2590681Y

CN2590681Y - Sliding guide & guards approached to roll gap

Info

Publication number: CN2590681Y
Application number: CN 02255369
Authority: CN
Inventors: 解占福
Original assignee: Handan Iron and Steel Group Co Ltd
Current assignee: Handan Iron and Steel Group Co Ltd
Priority date: 2002-11-19
Filing date: 2002-11-19
Publication date: 2003-12-10
Anticipated expiration: 2012-11-19

Abstract

The utility model relates to a sliding guide and guard device which can approach to a roller gap, which relates to a guide and guard device for a mill and belongs to the technical field of steel rolling. The utility model aims to solve the technical problems of providing the sliding guide and guard device which can approach to a roller gap, reducing distance between the sliding guide and guard device and the roller gap to enhance the holding force of guide and guard device for the tail part of a rolled part and overcoming use disadvantages, such as steel falling, etc. The utility model comprises a guide plate box and a guide plate, wherein, the guide plate is arranged in the guide plate box. The utility model has the improvement that the front end of the guide plate is outwards extended; the extended front end is gradually reduced to form a triangular insertion shape, and an insertion angle is corresponding to the roller gap of rollers. The utility model can reduce the distance between the guide and guard device and the roller gap and can enhance the holding force of guide and guard device for the tail part of the rolled part, and accordingly, the utility model can prevent the phenomenon of steel falling on the tail part of the rolled part, can reduce cutting loss of the tail part of the rolled part and can further improve the rolling qualified rate. The utility model is suitable for being assembled and used in continuous rolling production of rod material with a simple cross section and is particularly suitable for being assembled on and used for rolling mills on a coarse and a middle roller ways in the continuous rolling of the rod material.

Description

Can be near the sliding guide device of roller gap

Technical field

The utility model relates to roller guide and guard unit, belongs to technical field of steel rolling.

Background technology

The guide and guards of milling train can adopt and roll or the slide-and-guide mode.The sliding guide device generally is used for the better simply guiding of rolled piece section.The sliding guide device constitute guide cage, guide plate, guide plate is installed in the guide cage, guide cage is fixed near the roll.Because roll has certain diameter, roll gap is in again on the center line of roll, so guide and guards is inevitable greater than roller radius apart from the distance of roll center line, must have between guide cage and the roll gap one section can't be close distance, roller diameter is big more, this distance is big more.The existence of this distance makes the rolled piece afterbody just break away from guide and guards too early before also not entering roll gap, at this moment, the rolled piece afterbody is to help distortion such as irregular beat bending occur because of losing guiding, be commonly called as down steel, rolling back, the position of falling the steel forms nonstandard steel scrap section, be commonly called as " ears or side handles of a utensil ", the ears or side handles of a utensil steel scrap that the steel that falls causes has increased the damage amount of cutting of rolled piece afterbody, influenced the Rolling Production lumber recovery, this problem is a comparatively general problem during excellent section rolling is produced, and should at first seek to solve the way of breakthrough on sliding guide device simple in structure.

Summary of the invention

The purpose of this utility model provides a kind ofly can dwindle the distance between sliding guide device and the roller gap near the sliding guide device of roller gap, strengthens the support power of guide and guards to the rolled piece afterbody, uses defective to overcome the steel etc. of falling that causes greatly because of distance.

The alleged problem of the utility model realizes with following technical solution:

A kind ofly can be made of guide cage, guide plate near the sliding guide device of roller gap, guide plate is positioned at guide cage, and it is improved to, and the front end of described guide plate stretches out, and extends front end and dwindles gradually and form triangle and insert shape, inserts the roll gap of the corresponding roll in angle.

Above-mentioned can be near the sliding guide device of roller gap, described guide plate is positioned at the both sides of guide cage, is provided with the positioning key and the keyway of coupling between guide plate and the guide cage.

Above-mentioned can be near the sliding guide device of roller gap, described leg-of-mutton two hypotenuses are the arc shape that caves inward.

The utility model adopt stretch out guide plate and make extending part form triangle insert shape design, keeping under the prerequisite of the original position of guide cage, dwindled the distance between guide and guards and the roller gap, strengthened the guiding support dynamics of guide and guards greatly to the rolled piece afterbody, so can effectively prevent the phenomenon of falling the steel of rolled piece afterbody, reduce the damage of cutting of rolled piece afterbody, and then improve rolling lumber recovery; The utility model suits to install and use in the bar continuous rolling production line of simple section, especially installs and uses on the milling train of thick, the middle rolling pass in bar continuous rolling.

Description of drawings

Fig. 1 is the utility model vertical view;

Fig. 2 is the A-A cutaway view of Fig. 1.

The specific embodiment

Consult Fig. 1,2 and be depicted as an embodiment who is used on the horizontal milling train.Among the figure, guide cage 1 adopts the open guide box, the box body top is uncovered, the quantity of guide plate 2 is two, lays respectively on the inner surface of guide cage both sides, and the gathering sill that guide plate and guide cage constitute is the horn mouth shape, bell-mouthed heavy caliber end is the rolled piece upstream end, small-bore corresponding roll gap, arrow is represented the throughput direction of rolled piece among the figure, the dovetail slideway of guide cage bottom is used for the location and installation of guide cage.

Still consult Fig. 1,2, in the diagram, the front end of guide plate 2 stretches out and forms triangle insertion shape, insert the corresponding roller gap in angle, leg-of-mutton two hypotenuses 5 are the camber line that caves inward, and the straight line hypotenuse inserts the angle front end and falls into circular-arc too near the top and bottom rolls excircle in the time of can preventing to insert.Two guide plates 2 pass through positioning key 3, keyway 4 location and installation on the inner surface of guide cage 1 both sides, and the installation of guide plate is changed convenient.

Claims

1. one kind can be made of guide cage, guide plate near the sliding guide device of roller gap, and guide plate is positioned at guide cage, it is characterized in that, the front end of described guide plate stretches out, and extends front end and dwindles formation triangle insertion shape gradually, inserts the roll gap of the corresponding roll in angle.

2. according to claim 1ly can it is characterized in that described guide plate is positioned on the inner surface of guide cage both sides, be provided with the positioning key and the keyway of coupling between guide plate and the guide cage near the sliding guide device of roller gap.

3. according to claim 1 and 2 can it is characterized in that near the sliding guide device of roller gap, described leg-of-mutton two hypotenuses are the arc shape that caves inward.