Brush roll device for strip rolling and method of using same

Abstract

The present application relates to the field of component cleaning method using the rotating action of brush, in particular to a brush roller device for strip rolling and its use method. A brush roller device for strip rolling, comprising an upper box body (11), an upper brush roller (12), a lower box body (21) and a lower brush roller (22), characterized in that: it further comprises air cylinders (3), an upper motor (14), an upper jack (15), an upper adjusting motor (16), an upper air knife (17), a lower motor (24), a lower jack (25), a lower adjusting motor (26) and a lower air knife (27), two air cylinders (3) are fixed on both sides of the lower box body (21) respectively; the upper motor (14) is connected with the upper brush roller (12) through a shaft coupling, and the lower motor (24) is connected with the lower brush roller (22) through a shaft coupling. A use method of the brush roller device for strip rolling, characterized in that: the following steps are sequentially implemented: S1. initialization; S2. brush roller; S3. adjustment; S4. shutdown. The present application improves dust removal efficiency and improves production environment.

Description

Technical Field

[0001] This invention relates to the field of component cleaning methods utilizing the rotational motion of a brush, specifically to a brush roller device for strip rolling and its method of use. Background Technology

[0002] In the production process of oriented silicon steel hot stretching and leveling units, the incoming steel strips are often coated with magnesium oxide to improve the performance of the steel coils and prevent adhesion. This often results in a large amount of magnesium oxide dust at the unit's inlet section. On the one hand, this deteriorates the production environment; long-term work in this dusty environment can easily lead to various occupational diseases such as pneumoconiosis for production personnel. On the other hand, over time, magnesium oxide dust accumulates in various gaps in the channels, significantly impacting the equipment. Therefore, the dust removal efficiency of magnesium oxide directly affects the health of production personnel and the lifespan of the equipment.

[0003] Currently, the commonly used magnesium oxide dust removal device in the unit works by using compressed air to continuously blow away magnesium oxide dust from the strip surface through an air knife. This dust removal method lacks direct contact with the strip, and firmly adhered magnesium oxide dust cannot be blown off by the air knife. As the strip bends during subsequent passage through the guide rollers and pressure rollers, a large amount of magnesium oxide dust still spills off, failing to achieve the desired dust removal effect. Furthermore, after the steel coils have been fired, their surfaces contain a large amount of iron oxide scale and other impurities. Much magnesium oxide dust is hidden in the depressions on the strip surface. To thoroughly remove the magnesium oxide dust, it is necessary to consider removing the iron oxide scale from the strip surface through direct contact, which is difficult to achieve with air knife blowing. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art and provide a cleaning device that improves dust removal efficiency and improves the production environment, this invention discloses a brush roller device for strip steel rolling and its usage method.

[0005] The present invention achieves its objective through the following technical solution: A brush roller device for strip steel rolling includes an upper housing, an upper brush roller, a lower housing, and a lower brush roller. The upper housing is located directly above the lower housing. Brush bristles are provided on the outer surfaces of both the upper and lower brush rollers. The upper brush roller is horizontally and rotatably mounted inside the upper housing via upper bearing seats at both ends. The lower brush roller is horizontally and rotatably mounted inside the lower housing via lower bearing seats at both ends. The upper and lower brush rollers are parallel to each other, forming a strip steel conveying channel between them. The device further includes a cylinder, an upper motor, an upper jack, an upper adjusting motor, an upper air knife, a lower motor, a lower jack, a lower adjusting motor, and a lower air knife. Two cylinders are fixed on each side of the lower housing, and the moving ends of the piston rods of the four cylinders are connected to the bottom surface of the same side of the upper housing. The upper motor is connected to the upper brush roller via a coupling, and the lower motor is connected to the lower brush roller via a coupling. The upper housing is equipped with two jacks, and the top of each jack is connected to an upper bearing seat. The upper adjusting motor is connected to the two jacks via a coupling. The lower housing is equipped with two lower jacks, and the top of each of the two lower jacks is connected to a lower bearing seat. The lower adjusting motor is connected to the two lower jacks respectively through a coupling. An upper air knife is fixed on each side of the upper brush roller. The upper air knife and the upper brush roller are parallel to each other. The outer side of the upper air knife is provided with through holes (nozzles) along the generatrix direction as air outlets. The air outlets of the two upper air knives are downward and directed toward the strip conveying channel between the upper brush roller and the lower brush roller. A lower air knife is fixed on each side of the lower brush roller. The lower air knife and the lower brush roller are parallel to each other. The outer surface of the lower air knife is provided with through holes (nozzles) along the generatrix direction as air outlets. The air outlets of the two lower air knives are upward and directed toward the strip conveying channel between the upper brush roller and the lower brush roller.

[0006] The brush roller device for strip rolling is characterized in that both the upper motor and the lower motor are gear motors. The upper motor is connected to the upper brush roller via a ball cage coupling, and the lower motor is connected to the lower brush roller via a ball cage coupling; the upper adjusting motor is connected to two upper jacks via a star coupling, and the lower adjusting motor is connected to two lower jacks via a star coupling.

[0007] The method of using the brush roller device for strip rolling is characterized by the following steps being performed sequentially: S1. Initialization: Fix the present invention at the strip inlet of the leveling unit. When there is no strip input and the brush roller is not required to run, the piston rods of the four cylinders are in the extended state, which pushes the upper box upwards respectively, causing the upper box and the lower box to separate, thereby causing the upper brush roller and the lower brush roller to separate. The upper motor, the upper air knife, the lower motor and the lower air knife are all in the stopped state. S2. Brush Roller: When the strip is being fed and the brush roller is running, the piston rods of the four cylinders are in the retracted state, pushing the upper box downwards to close the upper and lower boxes. The strip is fed in through the strip conveying channel between the upper and lower brush rollers. The upper and lower air knives are activated and spray compressed air. The upper air knife blows the upper surface of the strip and the lower air knife blows the lower surface of the strip. The upper and lower motors are activated and drive the upper and lower brush rollers to rotate. The upper and lower brush rollers brush the upper and lower surfaces of the strip through the bristles on their outer surfaces. S3. Adjustment: During the blowing and brushing process of the strip steel, the upper adjustment motor judges the brushing effect on the upper surface of the strip steel according to the current value of the upper motor, and adjusts the contact between the upper brush roller and the strip steel through the upper jack to adjust the brushing effect on the upper surface of the strip steel. The lower adjustment motor judges the brushing effect on the lower surface of the strip steel according to the current value of the lower motor, and adjusts the contact between the lower brush roller and the strip steel through the lower jack to adjust the brushing effect on the lower surface of the strip steel. S4. Shutdown: After the strip steel conveying is completed and the brushing is finished, the upper and lower motors stop, causing the upper and lower brush rollers to stop rotating. The upper and lower air knives stop, ending the blowing process. The piston rods of the four cylinders are all in the extended state, pushing the upper box upwards to separate the upper and lower boxes.

[0008] When brush rollers sweep strip steel, the optimal sweeping effect is generally achieved when the brush bristles are in direct contact with the strip surface. If the distance between the brush roller and the strip is increased further, some impurities will remain on the strip surface. Conversely, if the distance is increased, the brush bristles will be compressed and deformed by the strip, generating a reaction force that damages the strip during the sweeping process. The sweeping effect of a brush roller is essentially a reflection of the gradual wear and tear of its bristles.

[0009] During the debugging process, first adjust the upper and lower brush rollers so that their bristles are just in contact with the upper and lower surfaces of the strip, respectively. Then, start the upper and lower motors to drive the upper and lower brush rollers to rotate, and record the current values ​​of the upper and lower motors as set values. This current value varies greatly depending on the unit; for example, the current value of the hot stretching and leveling unit is about 1.5A. In subsequent production, the strip continues to be supplied. When the current value of the upper or lower motor is detected to be higher than the set value, it is considered that the load has increased, and the upper or lower motor is adjusted accordingly to control the distance between the upper or lower brush roller and the strip. Conversely, when the current value of the upper or lower motor is detected to be lower than the set value, it is considered that the load has decreased, and the upper or lower motor is adjusted accordingly to control the distance between the upper or lower brush roller and the strip.

[0010] This invention uses an air knife to continuously blow and clean the surface of the strip steel, while simultaneously using the bristles on the brush roller to scrub the surface of the strip steel. The motor is adjusted to control the lifting and lowering of the jack via a coupling, and the lifting and lowering of the brush roller is then adjusted via the bearing seat, thereby achieving the best scrubbing effect.

[0011] The present invention has the following beneficial effects: The introduction of brush roller washing on the basis of traditional air knife dust removal greatly improves dust removal efficiency and improves the production environment at the unit inlet. At the same time, it reduces the burden on subsequent water washing and other processes for cleaning the strip surface. In addition, in terms of equipment maintenance, the inside of the housing can be cleaned simply by opening the cylinder, making maintenance more convenient and allowing for more flexible scheduling of unit downtime. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention. Figure 2 This is the right view of the present invention. Detailed Implementation

[0013] The present invention will be further illustrated below through specific embodiments. Example

[0014] A brush roller device for strip rolling includes an upper housing 11, an upper brush roller 12, an upper bearing seat 13, an upper motor 14, an upper jack 15, an upper adjusting motor 16, an upper air knife 17, a lower housing 21, a lower brush roller 22, a lower bearing seat 23, a lower motor 24, a lower jack 25, a lower adjusting motor 26, a lower air knife 27, and a cylinder 3. Figure 1 and Figure 2 As shown, the specific structure is: The upper box 11 is located directly above the lower box 21. Brushes are provided on the outer surfaces of the upper brush roller 12 and the lower brush roller 22. The upper brush roller 12 is horizontally and rotatably mounted inside the upper box 11 through the upper bearing seats 13 at both ends. The lower brush roller 22 is horizontally and rotatably mounted inside the lower box 21 through the lower bearing seats 23 at both ends. The upper brush roller 11 and the lower brush roller 12 are parallel to each other, and a strip steel conveying channel is formed between the upper brush roller 11 and the lower brush roller 12. Four cylinders 3 are fixed at the four corners of the lower housing 21, and the moving ends of the piston rods of the four cylinders 3 are respectively connected to the bottom surface of the upper housing 11 on the same side. The upper motor 14 is connected to the upper brush roller 12 via a coupling, and the lower motor 24 is connected to the lower brush roller 22 via a coupling. The upper housing 11 is equipped with two upper jacks 15. The top of each of the two upper jacks 15 is connected to an upper bearing seat 13. The upper adjusting motor 16 is connected to the two upper jacks 15 through a coupling. The lower housing 21 is equipped with two lower jacks 25. The top of each of the two lower jacks 15 is connected to a lower bearing seat 23. The lower adjusting motor 26 is connected to the two lower jacks 25 through a coupling. An upper air knife 17 is fixed on each side of the upper brush roller 11. The upper air knife 17 and the upper brush roller 11 are parallel to each other. A slit or through hole is provided on the outer side of the upper air knife 17 along the generatrix direction as an air outlet. The air outlets of the two upper air knives 17 are downward and directed toward the strip conveying channel between the upper brush roller 11 and the lower brush roller 12. A lower air knife 27 is fixed on each side of the lower brush roller 21. The lower air knife 27 and the lower brush roller 21 are parallel to each other. A slit or through hole is provided on the outer side of the lower air knife 27 along the generatrix direction as an air outlet. The air outlets of the two lower air knives 27 are both facing upward toward the strip conveying channel between the upper brush roller 11 and the lower brush roller 12.

[0015] In this embodiment, both the upper motor 14 and the lower motor 24 are gear motors. The upper motor 14 is connected to the upper brush roller 12 via a ball cage coupling, and the lower motor 24 is connected to the lower brush roller 22 via a ball cage coupling; the upper adjusting motor 16 is connected to two upper jacks 15 via a star coupling, and the lower adjusting motor 26 is connected to two lower jacks 25 via a star coupling.

[0016] When using this embodiment, follow these steps in sequence: S1. Initialization: Fix this embodiment at the strip inlet of the leveling unit. When there is no strip input and the brush roller is not needed, the piston rods of the four cylinders 3 are all in the extended state, pushing the upper box 11 upwards respectively, so that the upper box 11 and the lower box 21 are separated, thereby driving the upper brush roller 12 and the lower brush roller 22 to separate. The upper motor 14, the upper air knife 17, the lower motor 24 and the lower air knife 27 are all in the stopped state. S2. Brush Roller: When the strip is input and the brush roller is running, the piston rods of the four cylinders 3 are in the retracted state, pushing the upper box 11 downwards to close the upper box 11 and the lower box 21. The strip is input from the strip conveying channel between the upper brush roller 11 and the lower brush roller 12. The upper air knife 17 and the lower air knife 27 are activated to spray compressed air. The upper air knife 17 blows the upper surface of the strip and the lower air knife 27 blows the lower surface of the strip. The upper motor 14 and the lower motor 24 are activated to drive the upper brush roller 12 and the lower brush roller 22 to rotate respectively. The upper brush roller 12 and the lower brush roller 22 brush the upper and lower surfaces of the strip respectively through the bristles on the outer surface. S3. Adjustment: During the blowing and brushing process of the strip steel, the upper adjustment motor 16 judges the brushing effect on the upper surface of the strip steel according to the current value of the upper motor 14, and adjusts the contact degree between the upper brush roller 11 and the strip steel through the upper jack 15 to adjust the brushing effect on the upper surface of the strip steel. The lower adjustment motor 26 judges the brushing effect on the lower surface of the strip steel according to the current value of the lower motor 24, and adjusts the contact degree between the lower brush roller 21 and the strip steel through the lower jack 25 to adjust the brushing effect on the lower surface of the strip steel. S4. Shutdown: After the strip steel conveying is completed and the brushing is finished, the upper motor 14 and the lower motor 24 stop, causing the upper brush roller 11 and the lower brush roller 21 to stop rotating. The upper air knife 17 and the lower air knife 27 stop and end the blowing. The piston rods of the four cylinders 3 are all in the extended state, pushing the upper box 11 upwards respectively, so that the upper box 11 and the lower box 21 are separated.

[0017] When brush rollers sweep strip steel, the optimal sweeping effect is generally achieved when the brush bristles are in direct contact with the strip surface. If the distance between the brush roller and the strip is increased further, some impurities will remain on the strip surface. Conversely, if the distance is increased, the brush bristles will be compressed and deformed by the strip, generating a reaction force that damages the strip during the sweeping process. The sweeping effect of a brush roller is essentially a reflection of the gradual wear and tear of its bristles.

[0018] During the debugging process, first adjust the upper brush roller 12 and lower brush roller 22 so that their bristles are just in contact with the upper and lower surfaces of the strip, respectively. Then, start the upper motor 14 and lower motor 24 to drive the upper brush roller 12 and lower brush roller 22 to rotate, respectively. Record the current values ​​of the upper motor 14 and lower motor 24 as set values. This current value varies greatly depending on the unit; for example, the current value of the hot stretching and leveling unit is about 1.5A. In subsequent production, the strip continues to be supplied. When the current value of the upper motor 14 or lower motor 24 is detected to be higher than the set value, it is considered that the load has increased. The upper motor 14 or lower motor 24 is adjusted accordingly to control the distance between the upper brush roller 12 or lower brush roller 22 and the strip. Conversely, when the current value of the upper motor 14 or lower motor 24 is detected to be lower than the set value, it is considered that the load has decreased. The upper motor 14 or lower motor 24 is adjusted accordingly to control the distance between the upper brush roller 12 or lower brush roller 22 and the strip.

Claims

1. A brush roller device for strip rolling, comprising an upper housing (11), an upper brush roller (12), a lower housing (21), and a lower brush roller (22), wherein the upper housing (11) is located directly above the lower housing (21), and brush bristles are provided on the outer surfaces of both the upper brush roller (12) and the lower brush roller (22). The upper brush roller (12) is horizontally and rotatably disposed inside the upper housing (11) via upper bearing seats (13) at both ends, and the lower brush roller (22) is horizontally and rotatably disposed inside the lower housing (21) via lower bearing seats (23) at both ends. The upper brush roller (11) and the lower brush roller (12) are parallel to each other, and a strip conveying channel is formed between the upper brush roller (11) and the lower brush roller (12), characterized in that: It also includes a cylinder (3), an upper motor (14), an upper jack (15), an upper adjusting motor (16), an upper air knife (17), a lower motor (24), a lower jack (25), a lower adjusting motor (26), and a lower air knife (27). Two cylinders (3) are fixed on both sides of the lower box (21), and the moving ends of the piston rods of the four cylinders (3) are respectively connected to the bottom surface of the upper box (11) on the same side. The upper motor (14) is connected to the upper brush roller (12) via a coupling, and the lower motor (24) is connected to the lower brush roller (22) via a coupling; The upper housing (11) is equipped with two upper jacks (15), and the top of the two upper jacks (15) is connected to an upper bearing seat (13). The upper adjusting motor (16) is connected to the two upper jacks (15) through a coupling. The lower housing (21) is equipped with two lower jacks (25), and the top of each of the two lower jacks (15) is connected to a lower bearing seat (23). The lower adjusting motor (26) is connected to the two lower jacks (25) through a coupling. An upper air knife (17) is fixed on each side of the upper brush roller (11). The upper air knife (17) and the upper brush roller (11) are parallel to each other. The outer side of the upper air knife (17) is provided with a through hole (nozzle) along the generatrix direction as an air outlet. The air outlets of the two upper air knives (17) are downward and facing the strip conveying channel between the upper brush roller (11) and the lower brush roller (12). A lower air knife (27) is fixed on each side of the lower brush roller (21). The lower air knife (27) and the lower brush roller (21) are parallel to each other. The outer side of the lower air knife (27) is provided with a through hole (nozzle) along the generatrix direction as an air outlet. The air outlets of the two lower air knives (27) are both facing upward toward the strip conveying channel between the upper brush roller (11) and the lower brush roller (12).

2. The brush roller device for strip rolling as described in claim 1, characterized in that: Both the upper motor (14) and the lower motor (24) are gear motors; The upper motor (14) is connected to the upper brush roller (12) via a ball cage coupling, and the lower motor (24) is connected to the lower brush roller (22) via a ball cage coupling; the upper adjusting motor (16) is connected to two upper jacks (15) via a star coupling (previously written incorrectly), and the lower adjusting motor (26) is connected to two lower jacks (25) via a star coupling.

3. The method of using the brush roller device for strip rolling as described in claim 1 or 2, characterized in that: Follow these steps in sequence: S1. Initialization: Fix the present invention at the strip inlet of the leveling unit. When there is no strip input and the brush roller is not needed to run, the piston rods of the four cylinders (3) are all in the extended state, pushing the upper box (11) upward respectively (the lower box and the base are fixed and do not move), so that the upper box (11) and the lower box (21) are separated, thereby driving the upper brush roller (12) and the lower brush roller (22) to separate. The upper motor (14), the upper air knife (17), the lower motor (24) and the lower air knife (27) are all in the stopped state. S2. Brush Roller: When the strip steel input requires the brush roller to run, the piston rods of the four cylinders (3) are all in the retracted state, pushing the upper box (11) downwards respectively, so that the upper box (11) and the lower box (21) are closed. The strip steel is input from the strip steel conveying channel between the upper brush roller (11) and the lower brush roller (12). The upper air knife (17) and the lower air knife (27) are started to spray compressed air. The upper air knife (17) blows the upper surface of the strip steel, and the lower air knife (27) blows the lower surface of the strip steel. The upper motor (14) and the lower motor (24) are started to drive the upper brush roller (12) and the lower brush roller (22) to rotate respectively. The upper brush roller (12) and the lower brush roller (22) brush the upper and lower surfaces of the strip steel respectively through the bristles on the outer side. S3. Adjustment: During the blowing and brushing process of the strip steel, the upper adjustment motor (16) judges the brushing effect of the upper surface of the strip steel according to the current value of the upper motor (14), and adjusts the fit between the upper brush roller (11) and the strip steel according to the brushing effect to adjust the brushing effect on the upper surface of the strip steel by using the upper jack (15). The lower adjustment motor (26) judges the brushing effect of the lower surface of the strip steel according to the current value of the lower motor (24), and adjusts the fit between the lower brush roller (21) and the strip steel according to the brushing effect to adjust the brushing effect on the lower surface of the strip steel by using the lower jack (25). S4. Shutdown: After the strip steel conveying is completed and the brushing is finished, the upper motor (14) and the lower motor (24) stop, causing the upper brush roller (11) and the lower brush roller (21) to stop rotating. The upper air knife (17) and the lower air knife (27) stop blowing. The piston rods of the four cylinders (3) are all in the extended state, pushing the upper box (11) upward respectively, so that the upper box (11) and the lower box (21) are separated.

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