CN213614019U - Edge pressing device for changing shape of edge of plate blank - Google Patents
Edge pressing device for changing shape of edge of plate blank Download PDFInfo
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- CN213614019U CN213614019U CN202022309860.7U CN202022309860U CN213614019U CN 213614019 U CN213614019 U CN 213614019U CN 202022309860 U CN202022309860 U CN 202022309860U CN 213614019 U CN213614019 U CN 213614019U
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Abstract
Provided is a blank holding device for changing the shape of an edge portion of a blank, comprising: the device comprises a pressing wheel, a pressing frame, a base plate, an end cover, a bearing, a nozzle, a guide seat, a fastening bolt, a hydraulic cylinder and a hydraulic cylinder base. The outline of the edge pressing wheel is provided with an alpha cone angle; the edge pressing wheel is arranged in the side vertical groove of the edge pressing frame; the middle of the back of the side-standing groove of the edge pressing frame is fixedly connected with a supporting arm; the supporting arm of the edge pressing frame is fixedly connected with the hydraulic cylinder through a fastening bolt; end covers are arranged above and below the edge pressing wheel; the upper part and the lower part of the end cover are provided with backing plates; the middle part in the edge pressing wheel is provided with a bearing; the inner side surface of the edge pressing frame is provided with a nozzle; the edge pressing frame supporting arm is provided with a guide seat; the advantages are that: the deformed slab is placed in a steel pushing type heating furnace, scratches of the slide ways on the lower surface of a casting blank can be obviously reduced, the purposes of optimizing the edge shape of the slab and eliminating the strip scab defect caused by the trapezoid shape of the slab are achieved, and smooth production and timely delivery of products are realized.
Description
Technical Field
The utility model relates to a continuous casting auxiliary assembly technical field especially relates to a blank pressing device that is used for alleviateing friction between slab lower surface and heating furnace slide, stops the change slab limit portion shape that the fish tail of slab lower surface and roll back strip scab and take place.
Background
With the rapid development of domestic metallurgical technology and the improvement of product quality by downstream users, the method is particularly suitable for the internal quality and the surface appearance quality of materials. In the continuous casting production process of the plate blank, the whole plate blank is in a micro-trapezoid shape with a wide upper part and a narrow lower part after passing through the straightening section; and in order to solve the problems of internal segregation and looseness, a soft reduction technology is generally adopted, the reduction is increased along with the improvement of equipment capacity, the deformation of the upper surface of a casting blank is increased, and the width of the upper surface of the produced slab is obviously larger than the width of the lower surface by 3-15mm and is trapezoidal. During the forward process of the trapezoidal casting blank in the steel pushing type heating furnace, only the upper surfaces of the casting blanks are in surface line contact, a torsional force is generated during the forward process, the lower surface of the casting blank and a slideway of the heating furnace rub to scratch the casting blank, strip scabs are formed during the rolling process, a large amount of grinding or judging is caused, and the smooth production and product delivery are severely restricted. Therefore, under the background of ensuring the internal quality of the casting blank, a device for improving the edge shape of the slab is needed, so that the friction between the lower surface of the slab and a heating furnace slideway is reduced, and the scratches on the lower surface of the slab and the strip scabs after rolling are avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide one kind and can be under the condition that does not change other technologies, optimize casting blank limit portion shape, eliminate the blank pressing device of the change slab limit portion shape because of the trapezoidal strip scar defect that causes of casting blank.
The utility model discloses a solve the technical scheme that above-mentioned problem provided and be: a blank pressing device for changing the shape of the edge of a plate blank comprises a blank pressing wheel, a blank pressing frame, a base plate, an end cover, a bearing, a nozzle, a guide seat, a fastening bolt, a hydraulic cylinder base and a high-temperature trapezoidal plate blank. The outline of the edge pressing wheel is provided with an alpha cone angle; the edge pressing wheel is arranged in the side vertical groove of the edge pressing frame; the middle of the back part of the side vertical groove of the edge pressing frame is fixedly connected with a supporting arm with a hollow middle part; the supporting arm of the edge pressing frame is fixedly connected with the hydraulic cylinder through a fastening bolt; the hydraulic cylinder is fixedly connected to the hydraulic cylinder base; the hydraulic cylinder base is fixedly arranged on the foundation ground; the upper end and the lower end of the edge pressing wheel are respectively provided with an end cover; a base plate is respectively arranged on the upper part and the lower part of the end cover; the upper part and the lower part of the base plate are respectively connected with the upper edge and the lower edge of the inner side of the edge pressing frame; 1 rotating bearing is respectively arranged at the upper part and the lower part of the middle part in the edge pressing wheel; the upper and lower positions of the inner side of the edge pressing frame are provided with nozzles for cooling the edge pressing wheel; the supporting arm of the edge pressing frame is provided with a guide seat which ensures the walking direction of the edge pressing wheel; the edge pressing device is arranged behind the fan-shaped section of the slab caster and in front of the position of the flame cutting machine, and symmetrically arranged on two sides of the casting flow direction of the continuous caster.
Preferably: the outer contour of the edge pressing wheel is provided with an alpha pyramid angle within the range of 2-10 degrees.
Preferably: two nozzles for cooling the edge pressing wheel are arranged at the upper and lower positions of the inner side of the edge pressing frame.
The utility model has the advantages that: the plate blank deformed by the edge pressing device is placed in a steel pushing type heating furnace, scratches of the slide ways on the lower surface of the casting blank can be obviously reduced, the purposes of optimizing the edge shape of the plate blank and eliminating the strip scab defect caused by the trapezoid shape of the plate blank are achieved, and smooth production and timely delivery of products are achieved.
Drawings
FIG. 1 is an assembly view of a blank holder apparatus for changing the shape of the edge of a blank according to an embodiment of the present invention;
fig. 2 is the schematic diagram of the embodiment of the utility model after the edge pressing wheel 1 presses the edge of the trapezoidal casting blank 11.
In the drawings: 1. an edge pressing wheel; 2. a blank holder frame; 3. a base plate; 4. an end cap; 5. a bearing; 6. a nozzle; 7. a guide seat; 8. fastening a bolt; 9. a hydraulic cylinder; 10. a hydraulic cylinder base; 11. high-temperature trapezoidal slab.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. An edge pressing device for changing the shape of an edge of a blank, as shown in figures 1 and 2: the device comprises a blank pressing wheel 1, a blank pressing frame 2, a backing plate 3, an end cover 4, a bearing 5, a nozzle 6, a guide seat 7, a fastening bolt 8, a hydraulic cylinder 9, a hydraulic cylinder base 10 and a high-temperature trapezoidal plate blank 11. The outer contour of the edge pressing wheel 1 is provided with an alpha cone angle; the edge pressing wheel 1 is arranged in a side vertical groove of the edge pressing frame 2; the middle of the back of the side vertical groove of the edge pressing frame 2 is fixedly connected with a supporting arm with a hollow middle part; the supporting arm of the blank pressing frame 2 is fixedly connected with a hydraulic cylinder 9 through a fastening bolt 8; the hydraulic cylinder 9 is fixedly connected to a hydraulic cylinder base 10; the hydraulic cylinder base 10 is fixedly arranged on the foundation ground; the edge pressing wheels 1 are respectively provided with an end cover 4 from top to bottom; the end covers 4 are respectively provided with a backing plate 3; the upper part and the lower part of the backing plate 3 are respectively connected with the upper edge and the lower edge of the inner side of the edge pressing frame 2; 1 rotating bearings 5 are respectively arranged at the upper part and the lower part of the middle part in the edge pressing wheel 1; the upper and lower positions of the inner side of the edge pressing frame 2 are provided with nozzles 6 for cooling the edge pressing wheel 1; a guide seat 7 for ensuring the travelling direction of the edge pressing wheel is arranged on the supporting arm of the edge pressing frame 2; the edge pressing device is arranged behind the fan-shaped section of the slab caster and in front of the position of the flame cutting machine, and symmetrically arranged on two sides of the casting flow direction of the continuous caster. The outer contour of the edge pressing wheel is provided with an alpha pyramid angle within the range of 2-10 degrees. Two nozzles for cooling the edge pressing wheel are arranged at the upper and lower positions of the inner side of the edge pressing frame.
The utility model discloses a theory of operation is: a blank holder device for changing the shape of the edge of a plate blank is shown in figure 1 and comprises a blank holder wheel 1 with an alpha angle, a blank holder frame 2 for fixing the blank holder wheel, a base plate 3 for adjusting the installation distance between the blank holder wheel and the frame, a pair of end covers 4 of the blank holder wheel, a pair of bearings 5 which are arranged in the blank holder wheel and rotate, a nozzle 6 for cooling the roller surface of the blank holder wheel, a guide seat 7 for ensuring the walking direction of the blank holder wheel, a fastening bolt 8 between the blank holder frame 2 and a hydraulic cylinder, a hydraulic cylinder 9 for providing driving force, a hydraulic cylinder base 10 for fixing the hydraulic cylinder and a high-temperature trapezoidal plate blank 11; the edge pressing device is arranged behind the fan-shaped section of the slab caster and in front of the flame cutting machine; the edge pressing wheels are symmetrically arranged on two sides of the casting flow direction of the continuous casting machine, power is provided by hydraulic cylinders 9 arranged on a hydraulic cylinder base 10, the edge pressing frame 2 is pushed to advance along the direction of a guide seat 7, the edge pressing wheels 1 are in contact extrusion with the upper part of the narrow surface of the slab, the slab advances at the pulling speed of the continuous casting machine to drive the edge pressing wheels 1 to rotate, and continuous edge deformation is carried out on the high-temperature trapezoidal slab 11; in the rotation process of the edge pressing wheel 1, the cooling water sprayed by the nozzle 6 cools the outer roll surface of the edge pressing wheel 1, so that the locking of a bearing and the overheating of the roll surface are prevented. This device is applicable on width, thickness variation's conticaster, and accessible pneumatic cylinder stroke is adjusted after the slab width variation, and blank pressing wheel 1 changes with the casting blank contact surface after the slab thickness variation, does not receive the continuous casting billet section restriction. The edge pressing wheel 1 with the angle has the angle alpha ranging from 2 degrees to 10 degrees, can be selected according to the trapezoidal quantity of the plate blank, can be deformed more easily by setting a certain angle, does not influence subsequent service due to local slight abrasion of the edge pressing wheel, and obviously prolongs the service life. Fig. 2 is a schematic diagram of a high-temperature trapezoidal plate blank after being processed by a blank holder device, the deformation of the high-temperature trapezoidal plate blank 11 can be realized by adjusting the pressure (3-8 Mpa) of a hydraulic cylinder system, and the deformed plate blank can obviously reduce the scratches of a slide way on the lower surface of a casting blank in a steel pushing type heating furnace, so that the edge shape of the plate blank is optimized, and the strip scab defect caused by the trapezoidal shape of the plate blank is eliminated.
Claims (3)
1. The utility model provides a change blank pressing device of limit portion shape, includes trapezoidal slab (11) of high temperature, its characterized in that: the device also comprises a side pressing wheel (1), a side pressing frame (2), a base plate (3), an end cover (4), a bearing (5), a nozzle (6), a guide seat (7), a fastening bolt (8), a hydraulic cylinder (9) and a hydraulic cylinder base (10); the outer contour of the edge pressing wheel (1) is provided with an alpha cone angle; the edge pressing wheel (1) is arranged in a side vertical groove of the edge pressing frame (2); the middle of the back of the side vertical groove of the edge pressing frame (2) is fixedly connected with a supporting arm with a hollow middle part; the supporting arm of the edge pressing frame (2) is fixedly connected with a hydraulic cylinder (9) through a fastening bolt (8); the hydraulic cylinder (9) is fixedly connected to the hydraulic cylinder base (10); the hydraulic cylinder base (10) is fixedly arranged on the foundation ground; the upper end and the lower end of the edge pressing wheel (1) are respectively provided with an end cover (4); the upper part and the lower part of the end cover (4) are respectively provided with a backing plate (3); the upper part and the lower part of the base plate (3) are respectively connected with the upper side and the lower side of the inner side of the edge pressing frame (2); 1 rotating bearings (5) are respectively arranged at the upper part and the lower part of the middle part in the edge pressing wheel (1); the upper and lower positions of the inner side of the edge pressing frame (2) are provided with nozzles (6) for cooling the edge pressing wheel (1); a guide seat (7) for ensuring the travelling direction of the edge pressing wheel is arranged on the supporting arm of the edge pressing frame (2); the edge pressing device is arranged behind the fan-shaped section of the slab caster and in front of the position of the flame cutting machine, and symmetrically arranged on two sides of the casting flow direction of the continuous caster.
2. A hemming device for modifying the shape of an edge of a blank according to claim 1 wherein: the alpha-pyramid angle of the outer contour of the edge pressing wheel (1) is within the range of 2-10 degrees.
3. A hemming device for modifying the shape of an edge of a blank according to claim 1 wherein: two nozzles (6) for installing the cooling edge pressing wheel (1) are arranged at the upper and lower positions of the inner side of the edge pressing frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022309860.7U CN213614019U (en) | 2020-10-16 | 2020-10-16 | Edge pressing device for changing shape of edge of plate blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022309860.7U CN213614019U (en) | 2020-10-16 | 2020-10-16 | Edge pressing device for changing shape of edge of plate blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213614019U true CN213614019U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022309860.7U Active CN213614019U (en) | 2020-10-16 | 2020-10-16 | Edge pressing device for changing shape of edge of plate blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213614019U (en) |
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2020
- 2020-10-16 CN CN202022309860.7U patent/CN213614019U/en active Active
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