CN202824170U

CN202824170U - Guide and protective device of club square type double-slitting-hole system

Info

Publication number: CN202824170U
Application number: CN 201220318296
Authority: CN
Inventors: 周聪
Original assignee: Jiangsu Yonggang Group Co Ltd
Current assignee: Jiangsu Soviet Peak Industry Co ltd
Priority date: 2012-07-03
Filing date: 2012-07-03
Publication date: 2013-03-27
Anticipated expiration: 2022-07-03

Abstract

The utility model relates to a guide and protective device of a club square type double-slitting-hole system. The guide and protective device comprises a rolling guide and protective device which is arranged on the outlet side of a K4 rolling mill. The rolling guide and protective device comprises an upper guide wheel and a lower guide wheel. The distance between the upper guide wheel and the lower guide wheel corresponds to the thickness of a section bar. According to the guide and protective device of the club square type double-slitting-hole system, a method that the rolling guide and protective device is arranged on the outlet side of the K4 rolling mill is used, certain clamping force is provided, the fact that when the K4 rolling mill outputs the section bar, the section bar is prevented from continuous torsion, so that the section bar enters into a K3 rolling mill according to a designed mode, and rolling fault caused by continuous torsion of the section bar is avoided.

Description

The guide and guards of a kind of plum blossom square two slitting pass systems

Technical field

The utility model relates to a kind of guide and guards, relates in particular the guide and guards of a kind of plum blossom square two slitting pass systems, belongs to the steel rolling process design field.

Background technology

In the rolling of sectional iron, guide and guards is installed in before and after the roll pass, helps rolled piece exactly, stably to enter and derive the device of pass by set direction and state, and its Main Function is: correctly rolled piece is imported roll pass; Guarantee rolled piece stably distortion in pass, and obtain desired geometry and size; Successfully with rolled piece by deriving in the pass, prevent curling round the roll; Control or pressure rolled piece reverse or flexural deformation, by certain direction motion.

In the design of guide and guards, decide the size and dimension of the rational working face of guide and guards according to workpiece measurement and shape, thereby make rolled piece can accurately, stably enter and derive roll pass.The selection of guide and guard material needs to select the guide and guard material according to pass shape and application site, requires to have good strength, rigidity, hardness and high temperature abrasion resistance, resistance to impact, anti-chilling and shock heating, to improve service life.

The guide and guards type is divided into sliding guide, rolling guide and guide twisting, selects according to being: a, selected pass schedule, and rolled piece cross dimensions and dimensional accuracy, steel grade and the surface quality passed through are selected; The outfit of the arrangement of b, milling train, frame form and quantity and auxiliary equipment; C, product situation, such as range of product size, dimensional accuracy and concrete operating condition.

Production line of bar is when adopting two slit rolling process, small dimension generally adopts plum blossom square groove system, and the typical characteristics of this system are exactly, the K5 passage adopts the plum blossom square groove, K5 milling train outlet side adopts guide twisting, enter the K4 design of section of rolling mill after utilizing guide twisting to reverse 45° angle the K5 milling train red steel out, and red steel is after entering the K4 milling train, also there is certain twisting resistance, cause red steel from the K4 design of section of rolling mill out after, continue to twist, can not enter the K3 milling train according to design, cause Rolling failure.

The utility model content

Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, provides a kind of bar that makes to enter the K3 milling train according to design, avoids the guide and guards of the plum blossom square two slitting pass systems of Rolling failure.

In order to solve above technical problem, the utility model provides the guide and guards of a kind of plum blossom square two slitting pass systems, described plum blossom square two slitting pass systems comprise K1 milling train, K2 milling train, K3 milling train, K4 milling train and K5 milling train, described guide and guards comprises a rolling guide, and described rolling guide is arranged at described K4 milling train outlet side.

The technical scheme that the utility model further limits is: described rolling guide comprises upper block and lower tumbler, and the distance between described upper block and the described lower tumbler is corresponding with the thickness of section bar.

Further, described device comprises that also one is arranged at the guide twisting device of described K5 milling train outlet side, and the windup-degree of described guide twisting device is 45 degree.

The beneficial effects of the utility model are: the guide and guards of a kind of plum blossom square described in the utility model two slitting pass systems, employing arranges the method for rolling guide at the outlet side of K4 milling train, certain chucking power is provided, weaken the follow-up twisting resistance that angle that the plum blossom square hole because of the K5 milling train reverses causes section bar to produce, thereby continue to reverse when avoiding K4 milling train output section bar, make section bar enter the K3 milling train according to design, avoid continuing to turn round the Rolling failure that causes because of section bar.

Description of drawings

Fig. 1 is the structural representation of plum blossom square two slitting pass systems;

Fig. 2 is the scheme of installation of plum blossom square two slitting pass system guide and guards described in the utility model;

Fig. 3 is the structural representation of plum blossom square two slitting pass system guide and guards described in the utility model.

Wherein:

1, K1 milling train; 2, K2 milling train; 3, K3 milling train; 4, K4 milling train; 5, K5 milling train;

6, rolling guide; 7, upper block; 8, lower tumbler; 9, red steel.

The specific embodiment

Embodiment 1

The guide and guards of a kind of plum blossom square two slitting pass systems that present embodiment provides comprises a rolling guide 8 and a guide twisting device.

The scheme of installation of plum blossom square two slitting pass system guide and guards as shown in Figure 2, rolling guide 6 is arranged at K4 milling train outlet side, and certain power of holding that adds is provided; The structural representation of rolling guide 6 comprises upper block 7 and lower tumbler 8 as shown in Figure 3, and the distance between upper block 7 and the lower tumbler 8 is corresponding with the thickness of section bar.

The guide twisting device is arranged at K5 milling train outlet side, and windup-degree is 45 degree, and certain twisting resistance is provided.

Production line of bar is when adopting two slit rolling process, small dimension generally adopts plum blossom square two slitting pass systems, its structural representation as shown in Figure 1, comprise K1 milling train 1, K2 milling train 2, K3 milling train 3, K4 milling train 4 and K5 milling train 5, red steel 9 is from K5 milling train 5 out the time, the twisting resistance that provides through the guide twisting device reverses 45 degree, then enters the K4 milling train; The red steel 9 that enters the K4 milling train enters rolling guide 6 out the time, and the upper block 7 of rolling guide 6 and lower tumbler 8 clamp red steel 9, certain power of holding that adds is provided, red steel 9 is stopped operating, enter K3 milling train 3 according to the mode that designs, and enter successively K2 milling train 2 and K1 milling train 1.

In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1. the guide and guards of plum blossom square two slitting pass systems, described plum blossom square two slitting pass systems comprise K1 milling train (1), K2 milling train (2), K3 milling train (3), K4 milling train (4) and K5 milling train (5), it is characterized in that, described guide and guards comprises a rolling guide, and described rolling guide is arranged at described K4 milling train (4) outlet side.

2. the guide and guards of a kind of plum blossom square according to claim 1 two slitting pass systems is characterized in that described rolling guide comprises upper block and lower tumbler, and the distance between described upper block and the described lower tumbler is corresponding with the thickness of section bar.

3. the guide and guards of a kind of plum blossom square according to claim 1 two slitting pass systems is characterized in that comprise that also one is arranged at the guide twisting device of described K5 milling train (5) outlet side, the windup-degree of described guide twisting device is 45 degree.