CN201143515Y

CN201143515Y - Novel lightweight steel shape contoured roll

Info

Publication number: CN201143515Y
Application number: CNU200720088598XU
Authority: CN
Inventors: 周贵宇; 王雁翔; 罗昊天
Original assignee: Wuhan Iron and Steel Group Corp
Current assignee: Wuhan Iron and Steel Group Corp
Priority date: 2007-11-29
Filing date: 2007-11-29
Publication date: 2008-11-05
Anticipated expiration: 2017-11-29

Abstract

The utility model belongs to a small precise cold-bent section steel forming roller and overcomes the shortages that the transverse movement of the metal edges in pore types is not restricted at present, thus generating poor finished product precision, left and right symmetry and straightness, and large flexibility, etc. The technical measure is that the roller mainly comprises an upper roller and a lower roller, working surfaces (3, 33) which compose rollers, bent working surfaces (4, 44) which are connected with the working surfaces (3, 33), roller end surfaces (5, 55) and processed shaft holes (6, 66) of the upper roller and the lower roller. Steps (7, 77) are arranged between the bent working surfaces (4, 44) and the roller end surfaces (5, 55); the angles between the bent working surfaces (4, 44) and the steps (7, 77) and between the steps (7, 77) and the roller end surfaces (5, 55) are 90 DEG. The small precise cold-bent section steel forming roller ensures the normal cold-bending forming and adjustment and effectively controls the transverse movement of the metal strip steels at the same time, has simple structure, high rolling precision and convenient operation as well as increases no cost.

Description

Novel cold-rolled forming section molding roller

Technical field

The utility model relates to rolling unit, specifically belongs to the novel cold-rolled forming section molding roller of miniature precision.

Background technology

At present, domestic each cold-rolled forming section manufacturing enterprise in order to improve the shared property of roll, has all adopted the open type pass schedule when the cold-rolled forming section product of designed openings, half opening, the metal edge in the pass is not carried out laterally moving limiting in moulding.

Metal strap is under the acting in conjunction of up-down rollers, and curved leg is bent upwards distortion.Because the raw band steel itself exists certain width and thickness error, there is dimensional discrepancy in the different piece of roll simultaneously, add the difference of top roll drafts when depressing, the suffered forming force of two curved leg is inequality about very easily causing, the difference of forming force can produce an additional horizontal locomotivity to metal strap, forces in the pass of band steel between up-down rollers to take place laterally to move.Straight degree, torsion resistance and the surface smoothness of the accuracy to size that laterally the moving of band steel has influence on finished product the most at last, left-right symmetry degree, product.

The utility model content

Problem to be solved in the utility model is; Can't effectively control metal strap laterally moving in pass in order to overcome above-mentioned open type pass schedule, provide a kind of and can not only carry out the clod wash distortion to metal strap normally, can also effectively control metal strap laterally moving in pass, the novel cold-rolled forming section molding roller of increase roll manufacturing cost that simultaneously again can be not extra.

The technical measures that address the above problem:

Novel cold-rolled forming section molding roller, mainly comprise topping roll and bottom roll, form the axis hole of processing on the working face of topping roll (1), the crooked working face that links to each other with working face, roll end face, the topping roll, it is: between crooked working face and roll end face step is arranged, the angle between crooked working face and step, step and the roll end face is 90 °.

It is: at the height h of step is 70～90% of institute's processing metal tape thickness.

It is: the gap S span between one side step and the institute's processing metal band edge: 15～40% of the linear dimensional tolerance sum of raw material width tolerance and finished product.

Another technical measures that address the above problem: novel cold-rolled forming section molding roller, mainly comprise topping roll and bottom roll, form the lower shaft hole of processing on the working face of bottom roll, the following crooked working face that links to each other with following working face, bottom roll end face, the bottom roll, it is: getting out of a predicament or an embarrassing situation between crooked working face and the bottom roll end face down, following crooked working face and get out of a predicament or an embarrassing situation, get out of a predicament or an embarrassing situation and the bottom roll end face between angle be 90 °.

It is: at the height h that gets out of a predicament or an embarrassing situation is 70～90% of institute's processing metal tape thickness.

It is: get out of a predicament or an embarrassing situation and institute's processing metal band edge between gap S span: 15～40% of the linear dimensional tolerance sum of raw material width tolerance and finished product.

Characteristics of the present utility model are can be when guaranteeing normal cold roll forming and adjustment, effectively controlled laterally moving of metal strap, pass schedule is simple in structure, rolling cold-rolled forming section precision height, suitable market improves constantly the demand for development of precision, be applicable to when rolling the metal strap opening up or down, easy to operate, and do not increase cost.

Description of drawings

Fig. 1 is the structural representation of novel cold-rolled forming section molding roller topping roll

Fig. 2 is that the A of Fig. 1 topping roll is to structural representation

Fig. 3 is the structural representation of novel cold-rolled forming section molding roller bottom roll

Fig. 4 is that the B of Fig. 3 bottom roll is to structural representation

Working state structure schematic diagram when Fig. 5 makes progress for rolling C type cold-rolled forming section

Fig. 6 is the working state structure schematic diagram of rolling C type cold-rolled forming section when downward

The specific embodiment

Embodiment 1

Be further described in conjunction with Fig. 1, Fig. 2, Fig. 5

Down, acting in conjunction has formed the space of a relative closure in working order for working face (3), crooked working face (4), step (7) and bottom roll (2).That the both sides forming force takes place during in moulding is inhomogeneous and cause laterally when mobile when metal material, and the sealing step of top roll will effectively be controlled the traversing distance of metal charge.

When the situation that step (7) and topping roll (1) integral body are processed: novel cold-rolled forming section molding roller, form topping roll (1) by forming the axis hole of processing on working face (3), the crooked working face (4) that links to each other with working face (3), roll end face (5), the topping roll (1) (6).The angle of crooked working face (4) and step (7) is processed into 90 °, the angle of step (7) and roll end face (5) is processed into 90 °.Integral body processes step (7) between crooked working face (4) and roll end face (5).

When producing certain product: the width of determining the height need rolled metal band of step (7) is 60 millimeters, and its width tolerance is ± 0.12 millimeter; The thickness of metal tape is 2.3 millimeters; The linear dimension tolerance of final finished is ± 0.3 millimeter, gets 82% of 2.3 millimeters of metal tape thickness and is the height of step (7), that is: H=2.3 millimeter * 82%=1.9 millimeter; Gap S between one side step (7) and the metal band edge: according to computing formula, S=(± 0.12 millimeter+± 0.3 millimeter) * 24%=0.1 millimeter.Continuously produce 3000 meters, through the linear dimension tolerance of sampling observation final products be controlled at ± 0.24 millimeter.And because raw material laterally moving in pass schedule is very little, not only guaranteed the precision of sectional dimension, also improved the linearity of product greatly, actual measurement flexibility≤0.5 millimeter/meter, product surface does not have bad defectives such as wearing and tearing, scuffing, scraping, chopping substantially simultaneously.

Contrast through theoretical calculating in addition, the employed complete polishing roll weight of this cover product is compared with the weight of the used roll of open type pass schedule, has only increased about 0.2%.

Embodiment 2

Be further described in conjunction with Fig. 3, Fig. 4, Fig. 6

Situation about processing when will get out of a predicament or an embarrassing situation (77) and bottom roll (22) integral body: novel cold-rolled forming section molding roller, form bottom roll (22) by forming the lower shaft hole of processing on working face (33), the following crooked working face (44) that links to each other with following working face (33), bottom roll end face (55), the bottom roll (2) down (66).To descend crooked working face (44) and the angle of (77) of getting out of a predicament or an embarrassing situation to be processed into 90 °, the angle of will get out of a predicament or an embarrassing situation (77) and bottom roll end face (55) is processed into 90 °.Integral body processes get out of a predicament or an embarrassing situation (77) between following crooked working face (44) and bottom roll end face (55).

When producing certain product: it is 127.5 millimeters that the height of determine to get out of a predicament or an embarrassing situation (77) needs the width of rolled metal band, and its width tolerance is ± 0.15 millimeter; The thickness of metal tape is 2.0 millimeters; The linear dimension tolerance of final finished is ± 0.5 millimeter, gets 75% height for get out of a predicament or an embarrassing situation (77) of 2.0 millimeters of metal tape thickness, that is: H=2.0 millimeter * 75%=1.5 millimeter; Get out of a predicament or an embarrassing situation (77) on one side and the metal band edge between gap S: according to computing formula, S=(± 0.15 millimeter+± 0.5 millimeter) * 30%=0.2 millimeter.Continuously produce 20 tons, through the linear dimension tolerance of sampling observation final products be controlled at ± 0.36 millimeter, through measuring, flexibility≤1.0 millimeter/meter, product surface does not have bad defectives such as wearing and tearing, scuffing, scraping, chopping substantially simultaneously.

Contrast through theoretical calculating in addition, the employed complete polishing roll weight of this cover product is compared with the weight of the used roll of open type pass schedule, has only increased about 0.26%.

Claims

1, novel cold-rolled forming section molding roller, mainly comprise topping roll (1) and bottom roll (2), form the upward axis hole (6) of processing of the working face (3) of topping roll (1), the crooked working face (4) that links to each other with working face (3), roll end face (5), topping roll (1), it is characterized in that: between crooked working face (4) and roll end face (5) step (7) is arranged, the angle between crooked working face (4) and step (7), step (7) and the roll end face (5) is 90 °.

2, novel cold-rolled forming section molding roller as claimed in claim 1 is characterized in that: at the height h of step (7) is 65～90% of institute's processing metal tape thickness.

3, novel cold-rolled forming section molding roller as claimed in claim 1 is characterized in that: the gap S span between one side step (7) and the institute's processing metal band edge: 15～40% of the linear dimensional tolerance sum of raw material width tolerance and finished product.

4, novel cold-rolled forming section molding roller, mainly comprise topping roll (11) and bottom roll (22), form the upward lower shaft hole (66) of processing of the working face (33) of bottom roll (22), the following crooked working face (44) that links to each other with following working face (33), bottom roll end face (55), bottom roll (22), it is characterized in that: getting out of a predicament or an embarrassing situation (77) between crooked working face (44) and the bottom roll end face (55) down, following crooked working face (44) and get out of a predicament or an embarrassing situation (77), get out of a predicament or an embarrassing situation (77) and bottom roll end face (55) between angle be 90 °.

5, novel cold-rolled forming section molding roller as claimed in claim 4 is characterized in that: the height h in get out of a predicament or an embarrassing situation (77) is 65～90% of institute's processing metal tape thickness.

6, novel cold-rolled forming section molding roller as claimed in claim 4 is characterized in that: Yi Bian get out of a predicament or an embarrassing situation (77) and institute's processing metal band edge between gap S span: 15～40% of the linear dimensional tolerance sum of raw material width tolerance and finished product.