CN217700670U - Device for adjusting thickness of cast-rolled plate under non-stop state - Google Patents

Abstract

The utility model discloses a device for adjusting the thickness of a cast-rolled plate under the state of no shutdown, wherein an upper roller and a lower roller are arranged on a rack of a rolling mill, the upper roller is connected on an upper roller bearing block through an upper roller bearing, the lower roller is connected on a lower roller bearing block through a lower roller bearing, and the bottom of the lower roller bearing block is connected with an upper pressure cylinder; roll gap adjusting components are arranged on two sides of the top surface of the lower roll bearing block; the roll gap adjusting assembly is adopted to adjust the roll gap of the rolling mill and mainly comprises four steps: the method comprises the preparation operation before the adjustment of the roll gap, the downward moving of the lower roll and the opening of the roll gap, the upward moving of the lower roll and the adjustment of the roll gap, the resetting and the recovery operation after the adjustment of the roll gap. The utility model discloses think about ingenious, the overall arrangement is compact reasonable, under the state of roll normal operating production, changes the roll gap size through the quantity and the thickness of increase and decrease casting and rolling machine roll gap gasket to reach the purpose of adjustment casting and rolling panel thickness, this operation can be accomplished at very short time simultaneously, has promoted production efficiency, reduction in production cost.

Description

Device for adjusting thickness of cast-rolled plate under non-stop state

Technical Field

The utility model relates to a cast rolling processing technology field especially relates to a device of adjustment cast rolling panel thickness under the state of not shutting down.

Background

Casting and rolling refer to a process of directly rolling liquid metal into a semi-finished product or a finished product, which is called continuous casting and rolling for short and is also called ingot-free rolling. In the casting and rolling production, the thickness of the cast and rolled plate is mainly controlled by setting the size of a roll gap when the plate is erected.

However, in the actual production, under the influence of many factors such as the rigidity of equipment, the stability of a hydraulic system, a bearing gap, bearing bounce and the like, the set roll gap cannot completely meet the production requirements, the produced plate thickness and plate shape cannot meet the requirements of customers, fine adjustment can be carried out through a roll gap regulator or by regulating the rolling force in the traditional process, and if the roll gap parameter vertical plate cannot be regulated, the machine can be stopped to regulate again; and when receiving orders with different thicknesses in the production process, the machine can only be stopped to re-erect the plates, and particularly when producing small-batch orders, the production cost can be increased due to frequent erecting of the plates, and meanwhile, the production efficiency is also reduced.

Therefore, how to provide a structure and a method of a device for adjusting the thickness of a cast-rolled plate without stopping the machine becomes a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device of adjustment casting and rolling panel thickness under the state of not shutting down solves the production efficiency that frequent shut down caused and descends and the problem of incremental cost.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a device for adjusting the thickness of cast-rolled plates without shutdown, the rolling mill for cast-rolled plates comprises a frame, an upper roller and a lower roller which are arranged in parallel up and down are arranged on the frame, the upper roller is rotatably connected on an upper roller bearing seat through an upper roller bearing, the upper roller bearing seat is connected on the upper part of the frame, the lower roller is rotatably connected on a lower roller bearing seat through a lower roller bearing, the lower roller bearing seat is positioned on the lower part of the frame, and the bottom of the lower roller bearing seat is connected with an upper pressure cylinder; and roll gap adjusting components are arranged on two sides of the top surface of the lower roll bearing block.

Furthermore, the roll gap adjusting assembly comprises cushion blocks and gaskets, wherein placing platforms are arranged on two sides of the top surface of the lower roll bearing seat, the placing platforms and the inner side wall of the rack form a U-shaped groove, the cushion blocks are placed in the U-shaped groove, and the gaskets are stacked on the cushion blocks.

Furthermore, a process hole for taking and placing is formed in the center of the side wall of the cushion block, two spring holes are formed in the top surface of the cushion block, springs are placed in the spring holes, and a plurality of gaskets are placed on the top surfaces of the springs and then tightly pressed between the upper roller bearing block and the lower roller bearing block.

Furthermore, the gaskets comprise a first group of gaskets and a second group of gaskets which are arranged from top to bottom, the thickness of the first group of gaskets is smaller than 3mm, the thickness of the second group of gaskets is larger than or equal to 3mm, two positioning holes are formed in the second group of gaskets, and the positions of the positioning holes correspond to the positions of the springs one by one.

Furthermore, the rack comprises a bottom plate, four supporting frames and a top plate, wherein the bottom plate and the top plate are arranged in parallel and are welded or connected to the two ends of the supporting frames through bolts.

Furthermore, the upper roll bearing seat is connected to a top plate of the rack through an upper hanging piece.

Furthermore, the lower roll bearing block is connected in the support frames in a sliding manner, sliding grooves are formed in the opposite surfaces of the two support frames, and sliding guide pieces are arranged on the two vertical side walls of the lower roll bearing block and are matched with the sliding grooves.

Further, the cross section of the sliding groove is in a U shape, a T shape or a dovetail groove shape; the guide sliding piece is arranged to be a square boss, a guide sliding bolt or a dovetail platform, the square boss is matched with the U-shaped sliding groove, the guide sliding bolt is matched with the T-shaped sliding groove, and the dovetail platform is matched with the dovetail groove.

Compared with the prior art, the utility model discloses a beneficial technological effect:

the utility model relates to a device for adjusting the thickness of cast-rolled plates in a non-stop state, wherein a rolling mill for the cast-rolled plates comprises a frame, an upper roller and a lower roller which are arranged in parallel up and down are arranged on the frame, the upper roller is rotatably connected on an upper roller bearing seat through an upper roller bearing, the lower roller is rotatably connected on a lower roller bearing seat through a lower roller bearing, and the bottom of the lower roller bearing seat is connected with an upper pressure cylinder; the roller gap adjusting assembly is arranged on two sides of the top surface of the lower roller bearing block and comprises cushion blocks and gaskets, the cushion blocks are placed on the lower roller bearing block, the gaskets are stacked on the cushion blocks, the gaskets comprise a first group of gaskets (thin gaskets) and a second group of gaskets (thick gaskets), and springs are arranged in the cushion blocks and penetrate through the thick gaskets; when the roll gap is opened, the thin gaskets placed on the roll gap are bounced by the spring, so that the gaskets for adjusting the roll gap can be quickly increased, reduced or exchanged, the size of the roll gap is changed to achieve the purpose of adjusting the thickness of the plate, and the thickness adjusting range of the plate in actual production can reach +/-5 mm. The roll gap adjusting assembly is adopted to adjust the roll gap of the rolling mill and mainly comprises four steps: the method has the advantages that the preparation operation before the adjustment of the roll gap is carried out, the roll gap is opened when the lower roll moves downwards, the lower roll moves upwards to adjust the roll gap and then is reset, and the recovery operation after the adjustment of the roll gap is carried out, the operation is simple, the adjustment of the roll gap is completed under the condition of no need of stopping the machine, the online adjustment of the plate thickness and the plate shape is realized, only the asbestos plug cap of the front box is replaced in order to reduce the height of the molten aluminum of the front box in the operation process, no new material is used, and the cost is greatly saved; adopt this utility model can accomplish the regulation operation of roll gap in very short time, the finished product can be batched immediately to the operation end, has improved production efficiency.

Generally speaking, the utility model discloses think about ingenious, the overall arrangement is compact reasonable, under the state that the roll normally operated production, through the quantity and the thickness change roll gap size of increase and decrease casting and rolling mill roll gap gasket to reach the mesh of adjustment casting and rolling panel thickness, this operation can be accomplished in very short time simultaneously, the finished product can be coiled immediately after the operation finishes, whole operation process is equivalent to once standing the board again, but only produced a small amount of aluminium scraps, does not change the casting nozzle, does not terminate original production process; the application of the method can ensure that the thickness of the cast-rolled plate can be adjusted at will under the condition of production continuity, thereby not only meeting the requirements of customers, but also reducing the times of erecting the plate, and further achieving the purposes of improving the production efficiency and reducing the production cost.

The utility model discloses a be applicable to any cast rolling production line, including slope, horizontal rolling mill, be fit for containing equally and press the rolling mill of jar, holding down the jar.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic view of the apparatus for adjusting the thickness of a cast-rolled plate in a non-stop state according to the present invention;

FIG. 2 is a cross-sectional view of the apparatus for adjusting the thickness of a cast-rolled plate in a non-stop state according to the present invention;

FIG. 3 is a schematic view of the installation position of the gasket of the present invention;

FIG. 4 is a schematic structural view of a first gasket of the present invention;

FIG. 5 is a schematic view of a second gasket assembly of the present invention;

description of reference numerals: 1. a frame; 2. an upper roll bearing; 201. an upper roll bearing seat; 3. upper roll; 4. a gasket; 401. a first set of shims; 402. a second set of shims; 402-1, positioning holes; 5. cushion blocks; 501. a fabrication hole; 502. a spring hole; 6. a spring; 7. a lower roll; 8. pressing the cylinder; 9. a lower roll bearing; 901. a lower roll bearing seat; 10. hanging parts are arranged; 11. and (4) rolling gaps.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-5, a device for adjusting the thickness of a cast-rolled plate without stopping a machine, the rolling mill for cast-rolled plate comprises a frame 1, an upper roller 3 and a lower roller 7 arranged in parallel up and down are arranged on the frame 1, the upper roller 3 is rotatably connected to an upper roller bearing seat 201 through an upper roller bearing 2, the upper roller bearing seat 201 is connected to the upper portion of the frame 1, the lower roller 7 is rotatably connected to a lower roller bearing seat 901 through a lower roller bearing 9, the lower roller bearing seat 901 is located at the lower portion of the frame 1, and an upper pressing cylinder 8 is connected to the bottom of the lower roller bearing seat 901; roll gap adjusting assemblies are arranged on two sides of the top surface of the lower roll bearing block 901.

Specifically, as shown in fig. 3, the roll gap adjusting assembly includes a pad 5 and a pad 4, wherein a placing platform is disposed on both sides of the top surface of the lower roll bearing seat 901, the placing platform and the inner side wall of the machine frame 1 form a U-shaped groove, the pad 5 is placed in the U-shaped groove, and the pads 4 are stacked on the pad 5.

A process hole 501 for taking and placing is formed in the center of the side wall of the cushion block 5, two spring holes 502 are formed in the top surface of the cushion block 5, springs 6 are placed in the spring holes 502, and a plurality of gaskets 4 are placed on the top surfaces of the springs 6 and then are tightly pressed between the upper roller bearing seat 201 and the lower roller bearing seat 901.

As shown in fig. 4 and 5, the spacers 4 include a first set of spacers 401 and a second set of spacers 402 disposed from top to bottom, the first set of spacers 401 is composed of a plurality of thin spacers with a thickness less than 3mm, the second set of spacers 402 is composed of a plurality of thick spacers with a thickness greater than or equal to 3mm, two positioning holes 402-1 are disposed on the second set of spacers 402, and the positions of the positioning holes 402-1 correspond to the positions of the springs 6 one by one. Specifically, first group's gasket 401 is as main adjusting shim, places in the top of second group's gasket 402, and first group's gasket 401 and second group's gasket 402 all are provided with multiple specification thickness, and prefabricated shaping in advance, and the thickness of every gasket carries out corresponding mark, and the high-speed combination uses when being convenient for use, reaches the height of settlement.

Specifically, during specific design, the thickness of the cushion block 5 needs to meet the setting of the maximum roll gap, so that the number of gaskets can be reduced as much as possible, and the accuracy of the roll gap is improved; the spring hole 502 is arranged in the cushion block and close to the outer side, and the diameter of the spring hole is

All the positioning holes 402-1 of the second group of gaskets 402 with the thickness more than 3mm correspond to the spring holes on the cushion block, and the diameter is set to be more than 3mm

For the through passage of the spring 6; all the first group of gaskets 401 with the thickness less than 3mm are flat plates and are not provided with holes.

When the device is used, when an initial roll gap is set in an assembly roll, the thickness of a gasket needing to be placed is calculated according to the roll diameter and the plate thickness required by a customer, the thickness of 5mm reserved in the total thickness is controlled by a first group of gaskets below 3mm, the rest thickness is controlled by a second group of gaskets with holes above 3mm, thick gaskets are adopted as far as possible, the optimal value is reached by the minimum quantity of the gaskets, and after the thick gaskets are placed, the first group of gaskets 401 below 3mm is placed on the top of the spring 6; finally, the upper roller 3 is stacked on the lower roller 7 to complete the setting of the roll gap.

The rack 1 comprises a bottom plate, four supporting frames and a top plate, wherein the bottom plate and the top plate are arranged in parallel and are welded or connected at two ends of the supporting frames through bolts.

The upper roll bearing seat 201 is connected to a top plate of the rack 1 through an upper hanging piece 10, wherein the upper hanging piece 10 is an inherent part of equipment and mainly used for positioning the upper roll bearing seat 201.

The lower roll bearing seat 901 is slidably connected in the support frames, the opposite surfaces of the two support frames are provided with sliding grooves, and the two vertical side walls of the lower roll bearing seat 901 are provided with sliding guides which are matched with the sliding grooves.

The cross section of the sliding chute is in a U shape, a T shape or a dovetail groove shape; the guide sliding piece is arranged to be a square boss, a guide sliding bolt or a dovetail platform, the square boss is matched with the U-shaped sliding groove, the guide sliding bolt is matched with the T-shaped sliding groove, and the dovetail platform is matched with the dovetail groove.

A method for adjusting the thickness of a cast-rolled plate under the condition of no stop is applied to the device for adjusting the thickness of the cast-rolled plate under the condition of no stop for adjustment, and specifically comprises the following steps:

firstly, reducing the liquid level of aluminum liquid in a front box until the aluminum liquid in an opening of a casting nozzle is in a half-full state, simultaneously increasing the rotating speed of an upper roller 3 and a lower roller 7, reducing the static pressure of the aluminum liquid in the casting nozzle, and simultaneously increasing the speed of a roller to enable the aluminum liquid in the roller gap 11 to be in a half-solidified state and slowly flow out and fall off;

step two, the lower roller moves downwards to open a roller gap, the rolling force is reset to zero through an operating platform control system, an upper pressing cylinder 8 is in a contraction state, a lower roller bearing seat 901 drives a lower roller 7 to move downwards together, an upper roller bearing seat 201 is suspended and locked on a top plate of a rack 1, at the moment, a roller gap 11 is opened, a gap between the upper roller bearing seat 201 and the lower roller bearing seat 901 is enlarged, and a cushion block 5 and a gasket 4 are driven to synchronously move downwards along with the downward movement of the lower roller bearing seat 901; at the moment, the pressure of the upper roller bearing seat 201 disappears, the spring 6 in the cushion block 5 bounces the gasket 4, the first group of gaskets 401 at the top are in a loose state, and an operator quickly adds, extracts or replaces the gaskets for adjusting the roll gap which are calculated in advance;

thirdly, the lower roll moves upwards to adjust the roll gap and then resets, the original rolling force is restored through an operating platform control system, the upper pressing cylinder 8 is in an extending state and drives the lower roll bearing seat 901 to move upwards, and after reaching a top dead center, the upper roll bearing seat 201 and the lower roll bearing seat 901 approach and squeeze a middle gasket 4 and a middle cushion block 5 tightly to form a new roll gap;

and step four, recovering operation after adjusting the roll gap, wherein an operator slowly lifts the liquid level of the aluminum liquid in the front box, the aluminum liquid starts to fill the whole casting nozzle opening and form static pressure, meanwhile, the speed of the upper roller 3 and the lower roller 7 is gradually reduced to the normal production speed, the plate is normally formed, the proper liquid level is adjusted, the production enters a normal state, and the whole roll gap adjusting operation is finished.

Specifically, in the second step, the operator manually performs rapid increase, extraction or replacement of the gasket, and during specific replacement, the operator can use pliers to assist in the replacement of the gasket, so that the gasket can be conveniently taken and placed.

The method changes the size of the roll gap by increasing or decreasing the number and the thickness of the roll gap gaskets of the casting and rolling machine under the state that the roll normally runs and produces, thereby achieving the purpose of adjusting the thickness of the cast and rolled plate, meanwhile, the operation can be completed in a short time, the finished product can be coiled immediately after the operation is finished, the whole operation process is equivalent to one-time re-erecting the plate, but only a small amount of waste aluminum is produced, the casting nozzle is not replaced, and the original production process is not stopped; the application of the method can ensure that the thickness of the cast-rolled plate can be adjusted at will under the condition of production continuity, thereby not only meeting the requirements of customers, but also reducing the times of erecting the plate, and further achieving the purposes of improving the production efficiency and reducing the production cost. The method has obvious effect on producing the small Shan Shixiao of hundred tons, can complete the conversion of orders without stopping the machine, and has convenient and quick adjustment and high working efficiency.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims (8)

1. A device for adjusting the thickness of a cast-rolled plate without stopping a machine comprises a rack (1), wherein an upper roller (3) and a lower roller (7) which are arranged in parallel up and down are arranged on the rack (1), the upper roller (3) is rotatably connected onto an upper roller bearing seat (201) through an upper roller bearing (2), the upper roller bearing seat (201) is connected onto the upper part of the rack (1), the lower roller (7) is rotatably connected onto a lower roller bearing seat (901) through a lower roller bearing (9), the lower roller bearing seat (901) is positioned at the lower part of the rack (1), and an upper pressure cylinder (8) is connected to the bottom of the lower roller bearing seat (901); the method is characterized in that: and roll gap adjusting components are arranged on two sides of the top surface of the lower roll bearing seat (901).

2. The apparatus for adjusting the thickness of a cast-rolled plate without stopping the machine according to claim 1, wherein: the roll gap adjusting assembly comprises a cushion block (5) and gaskets (4), wherein a placing platform is arranged on two sides of the top surface of the lower roll bearing seat (901), the placing platform and the inner side wall of the rack (1) form a U-shaped groove, the cushion block (5) is placed in the U-shaped groove, and the gaskets (4) are stacked on the cushion block (5).

3. The apparatus for adjusting the thickness of a cast-rolled plate without stopping the machine according to claim 2, wherein: the utility model discloses a bearing seat of roller, including the lateral wall center of cushion (5) is provided with gets to put fabrication hole (501) of usefulness, the top surface of cushion (5) is provided with two spring holes (502), spring (6) have been placed in spring hole (502), and is a plurality of gasket (4) are placed compress tightly behind the top surface of spring (6) go up roller bearing frame (201) with between lower roller bearing frame (901).

4. The apparatus for adjusting the thickness of a cast-rolled plate without stopping the machine according to claim 3, wherein: the gasket (4) comprises a first group of gaskets (401) and a second group of gaskets (402) which are arranged from top to bottom, the thickness of the first group of gaskets (401) is smaller than 3mm, the thickness of the second group of gaskets (402) is larger than or equal to 3mm, two positioning holes (402-1) are formed in the second group of gaskets (402), and the positions of the positioning holes (402-1) correspond to the positions of the springs (6) one by one.

5. The apparatus for adjusting the thickness of a cast-rolled plate without stopping the machine according to claim 1, wherein: the rack (1) comprises a bottom plate, four supporting frames and a top plate, wherein the bottom plate and the top plate are arranged in parallel and are welded or connected to the two ends of each supporting frame through bolts.

6. The apparatus for adjusting the thickness of a cast-rolled plate without stopping the machine according to claim 5, wherein: the upper roll bearing seat (201) is connected to a top plate of the rack (1) through an upper hanger (10).

7. The apparatus for adjusting the thickness of a cast-rolled plate without stopping the machine according to claim 5, wherein: the lower roll bearing block (901) is connected in the support frames in a sliding manner, sliding grooves are formed in the opposite surfaces of the two support frames, and sliding guide pieces are arranged on the two vertical side walls of the lower roll bearing block (901) and matched with the sliding grooves.

8. The apparatus for adjusting the thickness of a cast-rolled plate without stopping the machine according to claim 7, wherein: the cross section of the sliding groove is in a U shape, a T shape or a dovetail groove shape; the guide sliding piece is arranged to be a square boss, a guide sliding bolt or a dovetail platform, the square boss is matched with the U-shaped sliding groove, the guide sliding bolt is matched with the T-shaped sliding groove, and the dovetail platform is matched with the dovetail groove.

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