CN213645811U - Convex roll withdrawal and straightening machine, deformed blank withdrawal and straightening unit and continuous casting machine - Google Patents
Convex roll withdrawal and straightening machine, deformed blank withdrawal and straightening unit and continuous casting machine Download PDFInfo
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- CN213645811U CN213645811U CN202022610374.9U CN202022610374U CN213645811U CN 213645811 U CN213645811 U CN 213645811U CN 202022610374 U CN202022610374 U CN 202022610374U CN 213645811 U CN213645811 U CN 213645811U
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Abstract
The utility model discloses a convex roll draws machine of rectifying, beam blank to draw and rectify unit and conticaster, the convex roll draws machine of rectifying includes frame (11), goes up convex roll (12) and lower roll (13), along the axis direction of going up convex roll (12), and the outer roll surface of going up convex roll (12) contains left minor diameter section (121), middle major diameter section (122) and the right minor diameter section (123) that set gradually, and the external diameter of middle major diameter section (122) is greater than the external diameter of left minor diameter section (121) and the external diameter of right minor diameter section (123), and middle major diameter section (122) can with the last surface contact of web (41) of beam blank (40). When the straightening machine works, the upper convex roll of the convex roll straightening machine can be in direct contact with the web and the flange of the special-shaped casting blank at the same time, the straightening force is directly transmitted, and the quality defect caused by overlarge stress at the joint of the flange and the web is avoided.
Description
Technical Field
The utility model relates to a continuous casting equipment technical field, specific is a crowned roll withdrawal and straightening machine, still a beam blank withdrawal and straightening unit, especially a conticaster.
Background
On an arc continuous casting machine in the metallurgical industry, a withdrawal and straightening machine is arranged between a sector section and a billet discharge roller way and is used for continuously withdrawing and straightening an arc casting blank, and the withdrawal and straightening machine provides a straightening force for the casting blank so as to straighten the casting blank from an arc state to a horizontal state.
For the special-shaped blank, the upper roll 21 of the conventional withdrawal and straightening machine (as shown in fig. 1) can only support the flange 42 of the special-shaped casting blank 40, and the outer roll surfaces of the upper roll and the lower roll are of equal-diameter structures and cannot be contacted with the web plate 41; the tension leveler transfers the straightening force to the flange 42 of the special-shaped casting blank 40 through the contact of the upper roll 21 and the lower roll of the tension leveler and the flange 42; and then transmits the straightening force to the web 41 through the connection of the flange 42 and the web 41.
For a large-sized special-shaped blank, a web plate of the casting blank is wider, so that the straightening force required by web plate straightening is larger; if the straightening force required by the casting blank web is close to or greater than the shearing force which can be borne by the joint of the casting blank flange and the web, deformation or cracks may occur at the joint of the casting blank flange and the web, which may affect the quality of the casting blank and even make the casting blank become unqualified waste blank.
SUMMERY OF THE UTILITY MODEL
In order to improve the withdrawal and straightening quality of abnormal shape casting blank, the utility model provides a convex roll withdrawal and straightening machine, abnormal shape blank withdrawal and straightening unit and conticaster at the during operation, convex roll withdrawal and straightening machine's last convex roll can be simultaneously with the web and the edge of a wing direct contact of abnormal shape casting blank, direct transmission aligning power, avoided the edge of a wing and the too big quality defect who causes of web junction atress.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a convex roll withdrawal and straightening machine, includes frame, last convex roll and lower roll, goes up the convex roll and all is located the frame with the lower roll, goes up the convex roll and sets up with the lower roll interval from top to bottom, along the axis direction of last convex roll, the outer roll surface of last convex roll contains the left path section that sets gradually, middle big footpath section and right path section, and the external diameter of middle big footpath section is greater than the external diameter of left path section and the external diameter of right path section, middle big footpath section can with the upper surface contact of the web of heterotypic casting blank.
Go up convex surface roller formula structure as an organic whole, left path section and right path section are the mirror image each other, and left path section, middle path section and right path section can be simultaneously with the upper surface contact of heterotypic casting blank.
The axis of the left small-diameter section, the axis of the middle large-diameter section and the axis of the right small-diameter section are overlapped, and the left small-diameter section and the right small-diameter section cannot be in contact with the upper surface of the flange of the special-shaped casting blank.
The difference between the radius of the middle large-diameter section and the radius of the left small-diameter section is equal to the difference between the upper surface of the web plate and the upper surface of the flange of the largest special-shaped casting blank to be processed by the convex surface roll withdrawal and straightening machine.
The convex roll withdrawal and straightening machine further comprises an upper convex roll lifting mechanism and an upper convex roll rotation driving mechanism, wherein the upper convex roll lifting mechanism can enable the upper convex roll to move up and down, and the upper convex roll rotation driving mechanism can drive the upper convex roll to rotate.
The crowned roll withdrawal and straightening machine also comprises a lower roll rotation driving mechanism, the lower roll rotation driving mechanism can drive the lower roll to rotate, and the outer roll surface of the lower roll is of an equal-diameter structure.
The special-shaped blank withdrawal and straightening unit comprises a convex roller withdrawal and straightening machine, an equal-diameter roller withdrawal and straightening unit and a base, wherein the convex roller withdrawal and straightening machine is the convex roller withdrawal and straightening machine, and the convex roller withdrawal and straightening machine and the equal-diameter roller withdrawal and straightening unit are fixed on the base.
The special-shaped blank withdrawal and straightening unit comprises a plurality of crowned roll withdrawal and straightening machines and a plurality of constant-diameter roll withdrawal and straightening units, and the crowned roll withdrawal and straightening machines and the constant-diameter roll withdrawal and straightening units are alternately arranged along the blank discharging direction.
Along the billet discharging direction, the convex roll withdrawal and straightening machines and the equal-diameter roll withdrawal and straightening units are alternately arranged one by one; or the convex roll withdrawal and straightening machine and the equal-diameter roll withdrawal and straightening unit are alternately arranged; or the convex roll withdrawal and straightening unit and the equal-diameter roll withdrawal and straightening unit are alternately arranged.
The utility model provides a conticaster, the conticaster is including the beam blank withdrawal and straightening unit and the knockout roll table that set gradually, the beam blank withdrawal and straightening unit is foretell beam blank withdrawal and straightening unit.
The utility model has the advantages that:
1. the upper convex roll of the convex roll withdrawal and straightening machine can be in direct contact with the web and the flange of the special-shaped casting blank at the same time, so that the straightening force is directly transmitted, and the quality defect caused by overlarge stress at the joint of the flange and the web is avoided.
2. The upper convex roll can be driven by a hydraulic cylinder to lift, and the supporting requirements of the profiled blank webs with different sections can be met.
3. The middle large-diameter section of the upper convex roll is always in contact with the upper surface of the profiled blank web plate in the straightening process, so that the conditions of deformation such as the warping of the web plate in the straightening process can be avoided.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view of a prior art withdrawal and straightening unit.
Fig. 2 is a schematic view of the crowned roll withdrawal and straightening unit of the present invention.
Fig. 3 is a schematic view of an upper cam roller.
Fig. 4 is a schematic view of a shaped cast slab.
FIG. 5 is a schematic view of the convex roll withdrawal and straightening unit for pressing down a first type of special-shaped casting blank.
FIG. 6 is a schematic diagram of the convex roll withdrawal and straightening unit for pressing down a second type of special-shaped casting blank.
Figure 7 is a schematic view of the beam straightening unit of the utility model.
10. A crowned roll withdrawal straightening machine; 20. a constant diameter roll straightening unit; 30. a base; 40. a special-shaped casting blank;
11. a frame; 12. an upper convex roller; 13. a lower roll; 14. an upper cam roller lifting mechanism; 15. an upper cam roller rotation drive mechanism; 16. a lower roll rotation drive mechanism;
21. upper roll;
121. a left minor diameter section; 122. a middle large diameter section; 123. a right minor diameter section; 124. an outer roll surface;
41. a web; 42. and (4) flanges.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model provides a crowned roller draws machine of rectifying, including frame 11, upper convex roll 12 and lower roll 13 all are located frame 11, upper convex roll 12 and lower roll 13 interval setting from top to bottom, along the axis direction of upper convex roll 12, the outer roll surface 124 of upper convex roll 12 contains the left path section 121, middle big footpath section 122 and the right path section 123 that connect gradually, the external diameter of middle big footpath section 122 is greater than the external diameter of left path section 121 and the external diameter of right path section 123, middle big footpath section 122 can be with the upper surface contact of the web 41 of heterotypic casting blank 40, as shown in fig. 2-6.
With prior art in draw the edge of a wing 42 that the upper roll 21 of straightening machine can only support (I-shaped) heterotypic casting blank 40 different, crowned roll draws straightening machine at the during operation, the big footpath section 122 of centre of upper cam roll 12 can with the upper surface direct contact of the web 41 of heterotypic casting blank 40, direct transmission aligning power to the mass defect that the too big lead to the fact of flange 42 and web 41 junction atress has been avoided.
In this embodiment, the upper convex roll 12 is of an integral structure, and the left small-diameter section 121 and the right small-diameter section 123 are mirror images of each other, that is, the outer diameter and the length of the left small-diameter section 121 are the same as those of the right small-diameter section 123. The axes of the left small-diameter section 121, the middle large-diameter section 122 and the right small-diameter section 123 coincide, and the axial length of the middle large-diameter section 122 may be 40% to 70% of the axial length of the outer roll surface 124 of the upper convex roll 12. The outer diameter of the middle large diameter section 122 may be 150% to 20% of the outer diameter of the left small diameter section 121.
In this embodiment, the left small diameter section 121, the middle large diameter section 122 and the right small diameter section 123 of the upper convex roll 12 can be selected to be capable of simultaneously contacting with the upper surface of the casting blank 40 according to the difference of the section size and the shape of the casting blank 40, as shown in fig. 5, the web 41 and the flange 42 can be simultaneously straightened by the upper convex roll 12, or only the middle large diameter section 122 of the upper convex roll 12 is in contact with the upper surface of the web 41 of the casting blank 40, as shown in fig. 6. The upper cam roll 12 may have only one size or may have a plurality of sizes and be replaced as necessary.
Preferably, the upper convex roll 12 has only one size, and the difference between the radius R1 of the middle large diameter section 122 and the radius R2 of the left small diameter section 121 is equal to the difference L1 between the upper surface of the web 41 and the upper surface of the flange 42 of the largest casting blank 40 to be processed by the convex roll withdrawal and straightening unit. That is, in this case, the left small diameter section 121 is in contact with the upper surface of the flange 42 on the left side of the cast slab 40, the middle large diameter section 122 is in contact with the upper surface of the web 41 of the cast slab 40, and the right small diameter section 123 is in contact with the upper surface of the flange 42 on the right side of the cast slab 40, as shown in fig. 5.
Since the upper cam roll 12 has only one size, when processing a slightly smaller-sized cast slab 40, only the middle large diameter section 122 of the upper cam roll 12 contacts the upper surface of the web 41 of the cast slab 40, and the left and right small diameter sections 121 and 123 do not contact the upper surface of the flange 42 of the cast slab 40, as shown in fig. 6. The profiled casting blanks 40 shown in fig. 4 and 5 are the largest profiled casting blank 40 that the crown roll withdrawal and straightening unit needs to handle. The cast product 40 shown in fig. 6 is a slightly smaller-sized cast product 40 as described above.
In this embodiment, the crowned roll withdrawal and straightening machine further includes an upper crowned roll lifting mechanism 14 and an upper crowned roll rotation driving mechanism 15, the upper crowned roll lifting mechanism 14 can move the upper crowned roll 12 up and down, and the upper crowned roll rotation driving mechanism 15 can drive the upper crowned roll 12 to rotate (that is, the axis of the upper crowned roll 12 is rotated). The upper convex roll lifting mechanism 14 can be a lifting hydraulic cylinder, and both the upper convex roll lifting mechanism 14 and the upper convex roll rotation driving mechanism 15 can adopt products in the prior art. For the different sections of the special-shaped blank, the same upper convex roller 12 can be lifted to different positions to contact the upper surface of the web of the special-shaped blank so as to straighten the web.
In the present embodiment, the crowned roll withdrawal and straightening machine further includes a lower roll rotation driving mechanism 16, the lower roll rotation driving mechanism 16 can drive the lower roll 13 to rotate (i.e., rotate with the axis of the lower roll 13 as a shaft), and the lower roll rotation driving mechanism 16 can be a conventional product. The axis of the upper convex roller 12 is parallel to the axis of the lower roller 13, and the outer roller surface of the lower roller 13 is of an equal-diameter structure, namely the outer diameter of the outer roller surface of the lower roller 13 is the same everywhere. Preferably, the outer diameter of the outer roll surface of the lower roll 13 is equal to the outer diameter of the left small-diameter section 121. Alternatively, the lower roll 13 and the upper convex roll 12 are of the same construction and are mirror images of each other.
Next, a profile blank withdrawal and straightening unit is described, which includes a crowned roll withdrawal and straightening machine 10, an equal-diameter roll withdrawal and straightening unit 20, and a base 30, the crowned roll withdrawal and straightening machine 10 and the equal-diameter roll withdrawal and straightening unit 20 being arranged in a withdrawal direction a, the crowned roll withdrawal and straightening machine 10 being the crowned roll withdrawal and straightening machine described above, the equal-diameter roll withdrawal and straightening unit 20 being the conventional withdrawal and straightening unit shown in fig. 1, and the crowned roll withdrawal and straightening machine 10 and the equal-diameter roll withdrawal and straightening unit 20 being fixed to the base, as shown in fig. 7.
In the present embodiment, the number and positions of the crowned roll withdrawal and straightening units 10 and the equal diameter roll withdrawal and straightening units 20 may be determined as needed, and it is preferable that the profile blank withdrawal and straightening unit includes a plurality of crowned roll withdrawal and straightening units 10 and a plurality of equal diameter roll withdrawal and straightening units 20, and the crowned roll withdrawal and straightening units 10 and the equal diameter roll withdrawal and straightening units 20 are alternately arranged in the withdrawal direction.
The lower half structures of the convex roll withdrawal and straightening machine 10 and the equal-diameter roll withdrawal and straightening unit 20 are completely the same, and the structures of the installation positions of the convex roll withdrawal and straightening machine 10, the equal-diameter roll withdrawal and straightening unit 20 and the base 30 are completely the same, so that the two withdrawal and straightening units can be installed in an interchangeable manner at all installation positions, and the arrangement number and the arrangement positions of the convex roll withdrawal and straightening machine 10 and the equal-diameter roll withdrawal and straightening unit 20 can be adjusted at will according to different conditions.
Further preferably, the crowned roll withdrawal and straightening units 10 and the equal-diameter roll withdrawal and straightening units 20 are alternately arranged one by one in the strip discharging direction, that is, the crowned roll withdrawal and straightening units 10 and the equal-diameter roll withdrawal and straightening units 20 are arranged in such a manner that one equal-diameter roll withdrawal and straightening unit 20, one crowned roll withdrawal and straightening unit 10, one equal-diameter roll withdrawal and straightening unit 20, one crowned roll withdrawal and straightening unit 10 and one equal-diameter roll withdrawal and straightening unit 20 are arranged in the strip discharging direction.
Alternatively, the crown roll withdrawal and straightening units 10 and the equal-diameter roll withdrawal and straightening units 20 may be alternately arranged one after the other in the strip direction, that is, the crown roll withdrawal and straightening units 10 and the equal-diameter roll withdrawal and straightening units 20 may be arranged in such a manner that two equal-diameter roll withdrawal and straightening units 20, one crown roll withdrawal and straightening unit 10, and two equal-diameter roll withdrawal and straightening units 20 are arranged in the strip direction.
Alternatively, the crowned roll withdrawal and straightening units 10 and the equal-diameter roll withdrawal and straightening units 20 may be alternately arranged in the strip direction, that is, the crowned roll withdrawal and straightening units 10 and the equal-diameter roll withdrawal and straightening units 20 may be arranged in such a manner that one equal-diameter roll withdrawal and straightening unit 20, two crowned roll withdrawal and straightening units 10, and one equal-diameter roll withdrawal and straightening unit 20 are arranged in the strip direction.
The continuous casting machine comprises a fan-shaped section, a beam straightening unit and a knockout roller bed which are sequentially arranged, wherein the beam straightening unit is the beam straightening unit. The main utility model of the utility model is that the upper roll 21 of the existing equal-diameter roll straightening unit 20 is replaced by the upper convex roll 12, thereby forming the convex roll straightening and withdrawal machine 10; the number and location of the convex roll withdrawal and straightening units 10 and the equal diameter roll withdrawal and straightening units 20 can be determined as desired.
The working processes of the crowned roll withdrawal straightening machine, the beam straightening unit and the continuous casting machine are described below.
The casting blank 40 enters the casting blank withdrawal and straightening unit along the blank discharging direction A, in the process of withdrawal and straightening, the upper roll and the lower roll of the equal-diameter roll withdrawal and straightening unit 20 only can support the flange 42 of the casting blank 40, the upper convex roll 12 of the convex roll withdrawal and straightening machine 10 can simultaneously support the web 41 and the flange 42 of the casting blank 40, namely the upper convex roll 12 can simultaneously and directly contact the web 41 and the flange 42 supporting the casting blank 40, as shown in FIG. 5, or the upper convex roll 12 of the convex roll withdrawal and straightening machine 10 only supports the web 41 of the casting blank 40, as shown in FIG. 6. The lower roll 13 of the crowned roll withdrawal and straightening unit 10 supports the flange 42 of the profiled casting blank 40.
For convenience of understanding and description, the present invention is expressed in terms of absolute positional relationship, in which the directional word "up" indicates the upper direction in fig. 2, "down" indicates the lower direction in fig. 2, "left" indicates the left direction in fig. 2, and "right" indicates the right direction in fig. 2. The present invention is described by using the observation angle of the reader, but the above-mentioned orientation words can not be understood or interpreted as the limitation of the protection scope of the present invention.
The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and technical scheme, technical scheme and the technical scheme all can the independent assortment use.
Claims (10)
1. The utility model provides a crowned roller draws machine of rectifying, characterized in that, crowned roller draws machine of rectifying includes frame (11), upper convex roller (12) and lower roll (13) all are located frame (11), upper convex roller (12) and lower roll (13) interval set up from top to bottom, along the axis direction of upper convex roller (12), the outer roll surface of upper convex roller (12) contains left minor diameter section (121), middle major diameter section (122) and right minor diameter section (123) that set gradually, the external diameter of middle major diameter section (122) is greater than the external diameter of left minor diameter section (121) and the external diameter of right minor diameter section (123), middle major diameter section (122) can contact with the upper surface of web (41) of heterotypic casting blank (40).
2. The crowned roll withdrawal and straightening unit as claimed in claim 1, characterized in that the upper crowned roll (12) is of one-piece construction, the left small diameter section (121) and the right small diameter section (123) are mirror images of each other, and the left small diameter section (121), the middle large diameter section (122) and the right small diameter section (123) can be simultaneously in contact with the upper surface of the profiled casting billet (40).
3. The crowned roll withdrawal and straightening unit as claimed in claim 1, characterized in that the axis of the left small-diameter section (121), the axis of the middle large-diameter section (122) and the axis of the right small-diameter section (123) coincide, and the left small-diameter section (121) and the right small-diameter section (123) cannot contact the upper surface of the flange (42) of the profiled casting billet (40).
4. The crown roll withdrawal straightening machine according to claim 1, characterized in that the difference between the radius of the middle large diameter section (122) and the radius of the left small diameter section (121) is equal to the difference between the upper surface of the web (41) and the upper surface of the flange (42) of the largest profiled casting strand (40) that the crown roll withdrawal straightening machine needs to handle.
5. The crowned roll withdrawal straightening machine according to claim 1, characterized in that the crowned roll withdrawal straightening machine further comprises an upper crowned roll lifting mechanism (14) and an upper crowned roll rotation driving mechanism (15), wherein the upper crowned roll lifting mechanism (14) can move the upper crowned roll (12) up and down, and the upper crowned roll rotation driving mechanism (15) can drive the upper crowned roll (12) to rotate.
6. The crowned roll withdrawal and straightening machine as claimed in claim 1, characterized in that the crowned roll withdrawal and straightening machine further comprises a lower roll rotation driving mechanism (16), the lower roll rotation driving mechanism (16) can drive the lower roll (13) to rotate, and the outer roll surface of the lower roll (13) is of an equal-diameter structure.
7. A special-shaped blank withdrawal and straightening unit is characterized by comprising a convex roller withdrawal and straightening machine (10), an equal-diameter roller withdrawal and straightening unit (20) and a base (30), wherein the convex roller withdrawal and straightening machine (10) is the convex roller withdrawal and straightening machine as claimed in claim 1, and the convex roller withdrawal and straightening machine (10) and the equal-diameter roller withdrawal and straightening unit (20) are fixed on the base (30).
8. The beam blank withdrawal and straightening unit according to claim 7, characterized in that the beam blank withdrawal and straightening unit comprises a plurality of crowned roll withdrawal and straightening machines (10) and a plurality of equal-diameter roll withdrawal and straightening units (20), and the crowned roll withdrawal and straightening machines (10) and the equal-diameter roll withdrawal and straightening units (20) are alternately arranged along the withdrawal direction.
9. The beam blank withdrawal and straightening unit according to claim 8, characterized in that the crowned roll withdrawal and straightening units (10) and the equal-diameter roll withdrawal and straightening units (20) are arranged alternately one by one along the withdrawal direction; or the convex roll withdrawal and straightening machine (10) and the equal-diameter roll withdrawal and straightening unit (20) are alternately arranged; or the crowned roll withdrawal and straightening machine (10) and the equal-diameter roll withdrawal and straightening unit (20) are alternately arranged.
10. A continuous casting machine, characterized in that the continuous casting machine comprises a beam blank straightening unit and a run-out roller table which are arranged in sequence, wherein the beam blank straightening unit is the beam blank straightening unit according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022610374.9U CN213645811U (en) | 2020-11-12 | 2020-11-12 | Convex roll withdrawal and straightening machine, deformed blank withdrawal and straightening unit and continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022610374.9U CN213645811U (en) | 2020-11-12 | 2020-11-12 | Convex roll withdrawal and straightening machine, deformed blank withdrawal and straightening unit and continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213645811U true CN213645811U (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022610374.9U Active CN213645811U (en) | 2020-11-12 | 2020-11-12 | Convex roll withdrawal and straightening machine, deformed blank withdrawal and straightening unit and continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213645811U (en) |
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2020
- 2020-11-12 CN CN202022610374.9U patent/CN213645811U/en active Active
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