CN205128593U - Cold rolling production line - Google Patents
Cold rolling production line Download PDFInfo
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- CN205128593U CN205128593U CN201520956744.0U CN201520956744U CN205128593U CN 205128593 U CN205128593 U CN 205128593U CN 201520956744 U CN201520956744 U CN 201520956744U CN 205128593 U CN205128593 U CN 205128593U
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Abstract
The utility model discloses a cold rolling production line belongs to steel rolling technical field, including the CRDM unit, the CRDM unit includes an initiative rolling mill and a passive rolling mill, the central axis of initiative rolling mill becomes 90 degrees contained angle settings with the central axis of passive rolling mill, the setting of initiative rolling mill is provided by initiative rolling mill tractive mill bar in the front end of passive rolling mill, rolling power. The utility model discloses a set up three pairs of collarss, can subtract the sizing through the cubic improves product interior tissue performance on the one hand, and on the other hand can not shut down production yet when a pair of passive collars breaks down, reduces the loss that stops production, simultaneously, the rolling mill of will taking the initiative becomes 90 degrees settings with passive rolling mill, makes rolled piece direct initiative rolling mill that gets into behind passive rolling mill closing carry out the sizing shaping to realize no twist rolling, improve product quality.
Description
Technical field
The utility model belongs to steel rolling technical field, relates to a kind of cold rolling production line.
Background technology
Owing to subtracting sizing technology, there is advantages such as improving milling train hourly output, low-temperature and high-speed controlled rolling, free specification rolling, raising Product Precision, raising metal recovery rate, raising operating rate of rolling mill, obtain large-scale promotion and application at home and abroad, particularly more general on online rod hot rolling line.
Existing reducing-sizing mill is generally made up of multiple stage active milling train and passive milling train, and initiatively milling train is used for sizing, for passive milling train provides rolling tractive force, is positioned at passive milling train downstream; Passive milling train is used for tube reducing, is not with individual drive.Due to the unit that two active milling trains and two passive milling trains form, there is the problem of Synchronization Control difficulty, the domestic machine row often selecting an active milling train to add a passive milling train are produced, but still there is the problems such as rolling specs is few, alloy collars easily bursts apart, compression ratio is little.
For current Problems existing, be necessary to propose a kind of new cold rolling production line, can significantly reduce corporation improvement cost of investment, improve Product Precision, surface quality, effectively enhance product performance, improve Business Economic Benefit.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of cold rolling production line, the problem that the rolling specs existed in prior art is few to overcome, alloy collars easily bursts apart and compression ratio is little.
The purpose of this utility model is achieved through the following technical solutions:
A kind of cold rolling production line, comprise CRDM unit, described CRDM unit comprises initiatively milling train and a passive milling train, the main shaft of described active milling train becomes 90 degree of angles to arrange with the main shaft of passive milling train, described active milling train is arranged on the front end of passive milling train, and the roll-force of passive milling train is provided by active milling train tractive stocking.
Further, described passive milling train is provided with two pairs of separate collars.
Further, described active milling train and passive milling train are provided with roller gap adjusting device.
The beneficial effects of the utility model are:
The utility model is by arranging three pairs of collars, and can subtract sizing by three times improves interiors of products structure property on the one hand, also when a pair collars of passive milling train breaks down, can not shut down production on the other hand, reduces production suspension induced losses; Meanwhile, become 90 degree to arrange in active milling train with passive milling train, making rolled piece after passive milling train tube reducing, directly enter initiatively milling train, to carry out sizing shaping, thus realize no twist rolling, improves the quality of products.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from practice of the present utility model.Target of the present utility model and other advantages can be realized by description below and obtain.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is the layout drawing of a kind of cold rolling production line of utility model.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only in order to the utility model is described, instead of in order to limit the scope of the invention.
As shown in Figure 1, a kind of cold rolling production line of the present embodiment, comprise CRDM unit as shown in the figure, unit is made up of passive milling train and active milling train, wherein initiatively rolling mill cross is arranged in the front end of passive milling train, for flattening the tube reducing of supplied materials, the roll-force of passive milling train is provided by active milling train tractive stocking, thus realize rolling with (stock) tension, initiatively rolling mill main axis becomes 90 degree with the main shaft of passive milling train, rolled piece directly enters initiatively milling train after passive milling train tube reducing, and to carry out sizing shaping, thus realize no twist rolling.
In the present embodiment, passive milling train is provided with two pairs of separate collars, when the roll-force of product requires larger, two pairs of collars of passive milling train are rolled simultaneously, while the comprehensive compression ratio improving passive milling train, the flattening amount of often pair of collars reduces, and effectively can improve the carrying condition of collars and roller bearing, thus improves the fatigue life of collars and roller bearing.
When the roll-force of product requires less, a pair collars of passive milling train can be selected to be rolled, when faults such as bursting apart appear in this collars, switch and use another to be rolled collars, thus realize continuous rolling.After two pairs of collars all break down, then shutdown is carried out concentrating maintenance, thus the power generating ratio time, enhance productivity.
In the present embodiment, initiatively milling train and passive milling train are provided with roller gap adjusting device, can adapt to different product specifications, meet the demand of different user when not roll change by roll gap regulation.
The utility model has following advantage relative to prior art:
1, avoid the Synchronization Control difficult problem of two initiatively milling train group, need not arrange kink between milling train, stocking, without flexural deformation, decreases underbead crack and generates, improve product quality.Frame is few simultaneously, reduces investment.
2, stocking is through passive milling train twice reducing and rolling, and tube reducing compression ratio is large, and distortion good penetrability, is conducive to improving interiors of products structure property.
3, stocking flattens through the tube reducing of passive milling train two passage, can effectively improve collars loaded condition, improves collars and roller bearing fatigue life, decreases the spare part reserves of collars, simplify roller management, reduces roll change number of times, improves operating rate of rolling mill.
4, stocking flattens through two passage tube reducings, and every time flattening amount reduces, and stocking extensional is mild, is conducive to improving material property.
5, the comprehensive tube reducing compression ratio of passive milling train is large, can expand the dimensions of rolling, is namely expanded by the producible range of product size of roll gap regulation when not roll change, meets the particular/special requirement of user to product size.
6, when rolling small dimension product, when ensureing compression ratio, a pair collars work of passive milling train can be selected, when faults such as bursting apart appear in this collars, using another instead to collars work without hard stop, the continuity of producing can be ensured.After two pairs of collars all break down, then carry out centralized maintenance, can the power generating ratio time, enhance productivity.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. a cold rolling production line, it is characterized in that: comprise CRDM unit, described CRDM unit comprises initiatively milling train and a passive milling train, the main shaft of described active milling train becomes 90 degree of angles to arrange with the main shaft of passive milling train, described active milling train is arranged on the front end of passive milling train, and the roll-force of passive milling train is provided by active milling train tractive stocking.
2. a kind of cold rolling production line according to claim 1, is characterized in that: described passive milling train is provided with two pairs of separate collars.
3. a kind of cold rolling production line according to claim 1, is characterized in that: described active milling train and passive milling train are provided with roller gap adjusting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956744.0U CN205128593U (en) | 2015-11-26 | 2015-11-26 | Cold rolling production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956744.0U CN205128593U (en) | 2015-11-26 | 2015-11-26 | Cold rolling production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205128593U true CN205128593U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520956744.0U Active CN205128593U (en) | 2015-11-26 | 2015-11-26 | Cold rolling production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205128593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251764A (en) * | 2015-11-26 | 2016-01-20 | 重庆赛迪重工设备有限公司 | Cold rolling production line |
| CN108672493A (en) * | 2018-04-11 | 2018-10-19 | 新疆八钢铁股份有限公司 | A kind of hot drawing formula milling method |
-
2015
- 2015-11-26 CN CN201520956744.0U patent/CN205128593U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251764A (en) * | 2015-11-26 | 2016-01-20 | 重庆赛迪重工设备有限公司 | Cold rolling production line |
| CN108672493A (en) * | 2018-04-11 | 2018-10-19 | 新疆八钢铁股份有限公司 | A kind of hot drawing formula milling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400013 Degan Industrial Park, Jiangjin District, Chongqing Patentee after: MCC CCID Equipment Co., Ltd. Address before: 400013 Degan Industrial Park, Jiangjin District, Chongqing Patentee before: CISDI Heavy Machinery Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |