A method for improving semi-roll utilization

Abstract

This invention relates to a method for improving the utilization rate of half-rollers, comprising the following steps: S1, forming a half-roller-to-roller structure: arranging multiple brush groups consisting of upper and lower brush rollers along the steel plate feed path, with adjacent brush groups staggered in the width direction of the steel plate; aligning the upper and lower brush rollers vertically; S2, brushing the steel plate: passing the steel plate between the upper and lower brush rollers, adjusting one end of each of the two adjacent brush groups to extend beyond both sides of the steel plate and locking them, forming a section to be brushed and a brushing section. The sections to be brushed in both brush groups are not brushed initially, while the brushing sections brush the steel plate surface alternately; S3, adjusting and continuing brushing: after brushing for a period of time, the hydraulic locking mechanism is released from its downward locking, simultaneously driving the two brush groups to move relative to each other along the width direction of the steel plate, so that the brushing sections of the brush groups extending beyond both sides of the steel plate are not brushed, while the sections to be brushed brush the steel plate surface alternately.

Description

Technical Field

[0001] This invention belongs to the field of metal surface treatment technology, and in particular relates to a method for improving the utilization rate of half-rollers. Background Technology

[0002] Patent No. 201921666810.5 discloses a rust removal device for steel plates. A scale-breaking roller is mounted on a working beam, which is then connected to the lower part of an upper beam. The upper beam can also move along the width of the steel plate, thus adjusting the position of the brush roller according to the position of the steel plate. In actual production, to ensure sufficient brushing, the length of the brush roller is often greater than the width of the steel plate. This allows both ends of the brush roller to extend beyond the sides of the steel plate during brushing, achieving brushing without dead angles. However, this presents a problem: when the part of the brush roller that contacts the corresponding steel plate is worn, the abrasive on both sides of the brush roller is not yet worn, resulting in waste. Furthermore, due to the worn part of the brush roller and the unworn abrasive on both sides, it cannot be used to brush other steel plates.

[0003] To reduce waste and improve brushing efficiency, a steel plate surface treatment device with easy roller changing was disclosed in patent document CN202111287159.2. This device arranges multiple brush rollers on the upper and lower surfaces of the steel plate along its travel direction. The length of the brush rollers does not need to be greater than the width of the steel plate, and the brush rollers are staggered along the width of the steel plate, ensuring that every part of the steel plate surface is brushed. This not only improves brushing efficiency but also relatively reduces waste of abrasive material on the brush rollers. However, a drawback is that although the brush rollers are arranged in a staggered manner, parts of two staggered brush rollers still extend beyond the sides of the steel plate, resulting in underutilization and waste. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, the purpose of this invention is to provide a method for improving the utilization rate of half rollers, the steps of which are as follows.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A method for improving the utilization rate of half-rollers includes the following steps:

[0007] S1. Forming a half-roller-to-roller structure: Multiple brush groups consisting of upper and lower brush rollers are arranged on the steel plate feeding path, and adjacent brush groups are staggered in the width direction of the steel plate; the axes of the upper and lower brush rollers are arranged vertically on the same vertical line, so that the steel plate is brushed when it passes between the upper and lower brush rollers.

[0008] S2. Grinding the steel plate: Pass the steel plate through the upper brush roller and the lower brush roller. Adjust one end of each of the two adjacent grinding groups to extend outwards to both sides of the steel plate. Then, press down and lock the grinding groups through the hydraulic locking mechanism. The grinding groups form the section to be ground and the grinding section. The section to be ground of the two grinding groups is not ground on the steel plate first, while the grinding section grinds the steel plate on the surface of the steel plate in an alternating manner.

[0009] S3. Adjust and continue brushing: After brushing for a period of time, the hydraulic locking mechanism releases the downward lock and drives the two brush groups to move relative to each other along the width of the steel plate. This causes the brushing sections of the brush groups to extend beyond the sides of the steel plate without brushing, while the brushing sections brush the steel plate surface alternately.

[0010] Compared to the traditional single-roller brushing method, the double-roller brushing method is more efficient. The traditional single-roller brushing method requires an additional support roller to prevent the steel plate from bending and bulging during brushing, and it also generates more noise. The double-roller brushing method can provide bidirectional support for the steel plate. When the upper brush roller causes the steel plate to bend downwards during brushing, the lower brush roller can support and brush it. Similarly, when the lower brush roller causes the steel plate to bend upwards during brushing, the upper brush roller can prevent it from bending upwards and brush it. To ensure thorough abrasion, the abrasive brush groups need to extend beyond the sides of the steel plate. The staggered arrangement of the brush groups ensures that the surface of the steel plate can be completely abraded. In the initial abrasion stage, the sections to be abraded by the two brush groups do not abrade the steel plate; only the abrasive sections abrade. After a period of abrasion, the opposing movement of the two brush groups allows the sections to be abraded and the abrasive sections to be abraded to be swapped. This allows the sections to be abraded, which were not initially abraded, to participate in the abrasion, while the sections that were initially abraded do not participate. This ensures that the abrasive on the half-roll wears synchronously and improves its utilization rate.

[0011] Preferably, before step S2, the steel plate is passed through steel plate support mechanisms arranged on the front and rear sides of the brushing group in the steel plate feeding direction, so that the steel plate is fed steadily and smoothly between the upper and lower brush rollers for thorough brushing. If there is no steel plate support device to support the steel plate, the steel plate will bend upward or downward when entering between the upper and lower brush rollers, which will affect the brushing process.

[0012] Preferably, the three support rollers in the steel plate supporting mechanism are arranged in an equilateral triangle shape, with one steel plate supporting mechanism having three support rollers arranged in an upright triangle and the other having three support rollers arranged in an inverted triangle, to avoid bending and bulging of the steel plate during feeding. The support of the three support rollers and their triangular arrangement prevents the steel plate from bending during passage. Traditionally, there are two ways to support the steel plate: one is to arrange them vertically on the same vertical line, which provides good support in the vertical direction but causes the steel plate to shift laterally; the other is to arrange the two support rollers at an angle, which prevents the steel plate from shifting laterally but causes bending and bulging of the steel plate in the vertical direction. The two sets of pressure rollers located on the front and rear sides of the brush group are arranged in upright and inverted triangles respectively. This is to further improve the stability and smoothness of the steel plate feeding. If they are all arranged in upright or inverted triangles, the stress of the three pressure rollers on the steel plate will be concentrated in one direction, which is not conducive to the feeding of the steel plate.

[0013] Preferably, in step S2, the downward locking of the hydraulic locking mechanism is achieved by the following method: a downward pressing abutment post for downward fixing is movably inserted into a hollow hydraulic seat, and an inclined groove is opened on the side wall of the downward pressing abutment post. A wedge block that cooperates with the inclined groove is also provided inside the hydraulic seat. A first hydraulic cylinder is provided on the side wall of the hydraulic seat to drive the wedge block to slide within the hydraulic seat. When the wedge block slides in one direction within the hydraulic seat, it can press against the downward pressing abutment post extending outward from the hydraulic seat to lock the brush assembly. The half-roller has a large weight, and the inertia and vibration generated during brushing are significant. The hydraulic locking mechanism makes the overall equipment more stable, reducing the occurrence of insufficient brushing caused by equipment vibration. Furthermore, the method of locking the brush assembly by moving the wedge block with the first hydraulic cylinder to press against the outward extension of the downward pressing abutment post is more stable.

[0014] Preferably, in step S3, the hydraulic locking mechanism releases the downward locking by means of the following: the first cylinder drives the wedge block to move in the opposite direction, causing the downward pressing abutment post to disengage from the wedge block's pressure, thereby releasing the lock on the brush assembly.

[0015] Preferably, the upper and lower brush rollers are installed on their respective roller seats, and then the roller seats are connected to the support base. A pressing platform extends outward from the side wall of the support base for pressing and locking the downward abutment column. The pressing platform provides the point for pressing and locking the downward abutment column. By locking the pressing platform, the support base and roller seat can be locked synchronously.

[0016] Preferably, the following steps are also included:

[0017] S4. Online roller change: After the abrasive on the surfaces of the upper and lower brush rollers in one of the brush groups is completely worn, the locking of the brush group is released, and the brush group is driven to move along the width direction of the steel plate out of the surface of the steel plate and replace it with a new half roller; the roller change action of this brush group will not affect the continued brushing of the other brush groups, thus realizing the online roller change action.

[0018] S5. Continue brushing after changing the roller: After replacing the new half roller, drive the brush group to move back to the original brush position and lock it by pressing down the hydraulic locking mechanism to continue brushing the steel plate.

[0019] Complete abrasive wear refers to the wear of both the brush section to be ground and the brush section after a long period of operation. Online roller changing eliminates the need for machine downtime, resulting in high working efficiency.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] Compared to the traditional single-roller brushing method, the double-roller brushing method is more efficient. The traditional single-roller brushing method requires an additional support roller to prevent the steel plate from bending and bulging during brushing, and it also generates more noise. The double-roller brushing method can provide bidirectional support for the steel plate. When the upper brush roller causes the steel plate to bend downwards during brushing, the lower brush roller can support and brush it. Similarly, when the lower brush roller causes the steel plate to bend upwards during brushing, the upper brush roller can prevent it from bending upwards and brush it.

[0022] To ensure thorough abrasion, the abrasive brush groups need to extend beyond the sides of the steel plate. The staggered arrangement of these brush groups ensures complete abrasion of the steel plate surface. In the initial abrasion stage, the extended sections of the brush groups do not abrade the steel plate; only the abrasive sections perform the abrasion. After a period of abrasion, the opposing movement of the two brush groups allows the positions of the sections to be abraded and the abrasive sections to be swapped. This allows the initially un-abraded sections to participate in the abrasion process, while the initially abrasive sections do not, ensuring synchronous wear of the abrasive on the half-roll and improving its utilization rate. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a single roller device mounted on a frame in an embodiment of the present invention.

[0024] Figure 2 This is a three-dimensional structural diagram of the two grinding brush groups distributed along the width direction of the steel plate in an embodiment of the present invention;

[0025] Figure 3 This is a side view of the present invention in an embodiment where the upper and lower brush rollers are aligned vertically and distributed on the upper and lower sides of the steel plate;

[0026] Figure 4 This is a cross-sectional view of the roller device in an embodiment of the present invention;

[0027] Figure 5 yes Figure 4 Enlarged view of section A in the middle;

[0028] Figure 6 yes Figure 4 Enlarged view of section B;

[0029] Figure 7 This is a three-dimensional structural diagram of the assembly of the lower brush roller, lower roller seat, and lower support seat in an embodiment of the present invention;

[0030] Figure 8 This is a front view of the assembly of the lower brush roller, lower roller seat, and lower support seat in an embodiment of the present invention;

[0031] Figure 9 This is a cross-sectional view of the assembly of the lower brush roller, lower roller seat, and lower support seat in an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the lifting mechanism being mounted on the lower roller seat in an embodiment of the present invention;

[0033] Figure 11 This is a three-dimensional structural schematic diagram of the hydraulic locking mechanism in an embodiment of the present invention;

[0034] Figure 12 This is a cross-sectional view of the hydraulic locking mechanism in an embodiment of the present invention. Figure 1 ;

[0035] Figure 13 This is a cross-sectional view of the hydraulic locking mechanism in an embodiment of the present invention. Figure 2 ;

[0036] Figure 14 This is a cross-sectional view of the pressure column extending from the hydraulic seat in an embodiment of the present invention;

[0037] Figure 15 The explosion of the hydraulic locking mechanism in the embodiment of the present invention. Figure 1 ;

[0038] Figure 16 The explosion of the hydraulic locking mechanism in the embodiment of the present invention. Figure 2 ;

[0039] Figure 17 This is a flowchart illustrating the method of the present invention in an embodiment;

[0040] Figure 18 This is a schematic diagram showing the adjustment of step S3 in the method of the present invention in an embodiment.

[0041] Attached Figure Descriptions: 1. Bearing housing; 201a. Lower roller seat; 201b. Upper roller seat; 202. Rotating shaft; 203a. Lower support seat; 203b. Upper support seat; 204a. Lower pressing platform; 204b. Upper pressing platform; 205a. Lower fixed seat; 205b. Upper fixed seat; 206a. Lower guide groove; 206b. Upper guide groove; 207. Roller; 208. Horizontal displacement motor; 209. Chain; 3. Fixed bearing seat; 402. Movable bearing seat; 409. Second hydraulic cylinder; 5. Half roller; 501. Upper brush roller; 502. Lower brush roller; 6. Brush motor; 7. Frame; 701a. Lower slide rail; 701b. Upper slide rail; 702. Moving area; 8. Support device; 801. Pressure roller; 9. Hydraulic locking mechanism; 901. Hydraulic base; 902. Pressure column; 9021. Pressure groove; 903. Moving pressure block; 904. First oil cylinder; 10. Lifting mechanism; 1001. Lifting base; 1002. Transmission machine; 1003. Transmission shaft; 1004. Lifting motor; 1005. Lead screw; 1006. Sleeve; 1007. Nut. Implementation

[0042] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0043] In this embodiment, as Figure 2 , 3 As shown in Figures 17 and 18, a method for improving the utilization rate of half-rollers is specifically disclosed, the steps of which are as follows:

[0044] S1. Forming a half-roller-to-roller structure: Multiple brush groups consisting of upper brush rollers 501 and lower brush rollers 502 are arranged on the steel plate feeding path, and adjacent brush groups are staggered in the width direction of the steel plate; the axes of the upper brush rollers 501 and lower brush rollers 502 are arranged vertically on the same vertical line, so that the steel plate is brushed when it passes between the upper brush rollers 501 and lower brush rollers 502;

[0045] S2. Grinding the steel plate: Pass the steel plate through the upper brush roller 501 and the lower brush roller 502. Adjust one end of each of the two adjacent grinding groups to extend outwards to both sides of the steel plate. Then, press down and lock the grinding groups through the hydraulic locking mechanism 9. The grinding groups form the section to be ground and the grinding section. The section to be ground of the two grinding groups is not ground on the steel plate first, while the grinding section grinds the steel plate on the surface of the steel plate in an alternating manner.

[0046] S3. Adjust and continue brushing: After brushing for a period of time, the hydraulic locking mechanism 9 releases the downward lock and drives the two brush groups to move relative to each other along the width of the steel plate, so that the brushing section of the brush group extends out of the sides of the steel plate and does not brush, while the brushing section brushes the steel plate surface alternately.

[0047] S4. Online roller change: After the abrasive on the surfaces of the upper brush roller 501 and lower brush roller 502 in one of the brush groups is completely worn, the locking of the brush group is released, and the brush group is driven to move out of the surface of the steel plate along the width direction of the steel plate and replace the new brush roller; the roller change action of the brush group will not affect the continued brushing of the other brush groups, thus realizing the online roller change action.

[0048] S5. Continue brushing after changing the roller: After replacing the new half roller, drive the brush group to move back to the original brush position and lock it by pressing down the hydraulic locking mechanism 9 to continue brushing the steel plate.

[0049] A structure or method in which two brush rollers, each shorter than the width of the steel plate, are used to brush the steel plate in sections is called a half-roller. A structure or method in which two brush rollers are aligned and simultaneously brush the upper and lower surfaces of the steel plate is called a pair of rollers. Complete abrasive wear means that both the section to be brushed and the brushing section are worn after a long period of operation.

[0050] Compared to the traditional single-roller brushing method, the double-roller brushing method is more efficient. The traditional single-roller brushing method requires an additional support roller to prevent the steel plate from bending and bulging during brushing, and it also generates more noise. The double-roller brushing method can provide bidirectional support for the steel plate. When the upper brush roller causes the steel plate to bend downwards during brushing, the lower brush roller can support and brush it. Similarly, when the lower brush roller causes the steel plate to bend upwards during brushing, the upper brush roller can prevent it from bending upwards and brush it. To ensure thorough abrasion, the abrasive brush groups need to extend beyond the sides of the steel plate. The staggered arrangement of the brush groups ensures that the surface of the steel plate can be completely abraded. In the initial abrasion stage, the sections to be abraded by the two brush groups do not abrade the steel plate; only the abrasive sections abrade. After a period of abrasion, the opposing movement of the two brush groups allows the sections to be abraded and the abrasive sections to be abraded to be swapped. This allows the sections to be abraded, which were not initially abraded, to participate in the abrasion, while the sections that were initially abraded do not participate. This ensures that the abrasive on the half-roll wears synchronously and improves its utilization rate.

[0051] like Figure 1-3As shown, this method is applied to a brushing device, which includes multiple roller devices arranged in the steel plate feeding direction. Each roller device includes at least two brush groups, which are arranged in a staggered manner along the steel plate feeding direction and in an alternating manner along the width direction of the steel plate. Each brush group includes a half-roller 5 for brushing the steel plate. The brush group can also move along the width direction of the steel plate to adjust the position of the half-roller 5 on the surface of the steel plate. The half-roller 5 includes an upper brush roller 501 arranged on the upper surface of the steel plate and a lower brush roller 502 arranged on the lower surface of the steel plate. The axes of rollers 502 are located on the same vertical line to form a brushing action on the steel plate. The equipment has a working state and an adjustment state. In the working state, the two brush groups are staggered on the steel plate feed path. The outer ends of the half rollers 5 in the two brush groups extend outward to both sides of the steel plate, and the inner ends of the half rollers 5 in the two brush groups overlap in the width direction of the steel plate to brush the same position of the steel plate, so as to achieve complete brushing of the steel plate. In the adjustment state, the two brush groups move towards each other, the inner ends of the half rollers 5 extend outward to both sides of the steel plate, and the outer ends of the half rollers 5 overlap in the width direction of the steel plate to brush the same position of the steel plate, and then switch back to the working state.

[0052] This not only allows for complete brushing of the steel plate but also improves the utilization rate of the half-rollers 5. In the initial stage of brushing, the outer ends of the half-rollers 5 in the two brushing groups extend outwards to both sides of the steel plate. That is, one end of the upper brush roller 501 and the lower brush roller 502 located on the upper and lower surfaces of the steel plate in each brushing group extends outwards to one side of the steel plate. Meanwhile, the inner ends of the half-rollers 5 in the two brushing groups brush the same position on the steel plate surface in an alternating manner, which also improves the brushing effect. After brushing for a period of time, the originally extended half-rollers 5 are moved towards each other along the width direction of the steel plate, that is, the outer ends of the previously extended half-rollers 5 are moved towards the middle of the steel plate, while the inner ends of the brush rollers 5 previously located on the surface of the steel plate are moved towards the side of the steel plate, so that the inner ends extend outwards to the side of the steel plate, and the outer ends move to the surface of the steel plate. This ensures that the abrasive on the surface of the brush rollers 5 is worn synchronously, improving the utilization rate of the brush rollers 5. In this way, if the abrasive on the surface of the brush rollers 5 is not completely worn away, it can be used for the next production.

[0053] If the traditional brushing method is used, some of the abrasive on the surface of the brush roller 5 will be worn away, while other parts will still be intact. In this case, even if the brush roller is not completely worn away, the surface abrasive will not wear away synchronously, resulting in unevenness, and it cannot be reused.

[0054] In actual production, the upper brush roller 501 and the lower brush roller 502 are installed on the upper roller seat 201b and the lower roller seat 201a, respectively. The upper roller seat 201b and the lower roller seat 201a are respectively mounted on the top and bottom of the frame 7. The vertically connected movable area 702 opened on the top of the frame 7 is to facilitate the mounting of the lower roller seat 201a to form a brushing action on the steel plate. The upper slide rail 701b at the top of the frame 7 and the lower slide rail 701a at the bottom also facilitate the movement of the upper roller seat 201b and the lower roller seat 201a along the width direction of the steel plate, thereby adjusting the brushing position of the brush roller 5 during the brushing process.

[0055] like Figure 3 , 7 As shown, a lower support seat 203a is provided below the lower roller seat 201a, and an upper support seat 203b is provided above the upper roller seat 201b. The lower support seat 203a and the upper support seat 203b are fixed relative to the frame 7 in the working state, and can move relative to the frame 7 in the horizontal direction in the roller changing state. Lifting mechanisms 10 are provided between the lower roller seat 201a and the lower support seat 203a and between the upper roller seat 201b and the upper support seat 203b to adjust the vertical position of the lower roller seat 201a and the upper roller seat 201b so that the lower brush roller 502 and the upper brush roller 501 are always in contact with the surface of the steel plate.

[0056] like Figure 4 As shown, each brush group is provided with a support device 8 on both the front and rear sides of the steel plate feeding direction to support the steel plate to feed smoothly. The support device 8 includes at least three pressure rollers 801. The pressure rollers 801 are arranged in a triangle, and the arrangement of the pressure rollers 801 is divided into equilateral triangle and inverted triangle. The pressure rollers 801 arranged in equilateral triangle and the pressure rollers 801 arranged in inverted triangle are alternately arranged on the frame 7.

[0057] The lower roller seat 201a and the upper roller seat 201b are respectively connected at both ends to a fixed bearing seat 3 and a movable bearing seat 402 for supporting the half roller 5; the movable bearing seat 402 is slidably connected in the bearing housing 1, and the side wall of the bearing housing 1 is also provided with a second oil cylinder 409 for driving the movable bearing seat 402 to extend outward or retract into the bearing housing 1 to facilitate roller replacement.

[0058] In addition, such as Figure 1-8As shown, the lower support 203a has extended lower pressing platforms 204a on its front and rear side walls; the upper support 203b also has extended upper pressing platforms 204b on its front and rear side walls; each brush group also includes two symmetrically arranged lower fixed seats 205a at the bottom of the frame 7 and two symmetrically arranged upper fixed seats 205b at the top of the frame 7; the opposing side walls of the two lower fixed seats 205a are provided with lower guide grooves 20 for accommodating the lower pressing platforms 204a. 6a. The two upper fixed seats 205b have upper guide grooves 206b on their opposite sidewalls for accommodating the upper pressing platform 204b. Both the lower fixed seat 205a and the upper fixed seat 205b are provided with multiple hydraulic locking mechanisms 9. In the working state, after the brush group moves to the corresponding position, the hydraulic locking mechanism 9 can press and fix the lower pressing platform 204a and the upper pressing platform 204b against the sidewalls of the corresponding lower guide groove 206a and the upper guide groove 206b to achieve stable operation of the brush group.

[0059] In actual production, the abrasive on the surface of the brush roller 5 will gradually wear down, so it is necessary to adjust the position of the upper roller seat 201b and the lower roller seat 201a. Since the upper roller seat 201b and the lower roller seat 201a are respectively mounted on the upper slide rail 701b and the lower slide rail 701a, when the lower roller seat 201a is adjusted, the lifting mechanism 10 acting on the lower roller seat 201a and the lower support seat 203a will first act on the lower support seat 203a, causing the lower support seat 203a to move downward and drive the lower pressing table 204a to move downward and press against the bottom of the lower guide groove 206a. Then the hydraulic locking mechanism 9 acts on the lower pressing table 204a to fix the lower roller seat 203a. At this time, the lifting mechanism 10 continues to act. Since the lower support seat 203a is fixed, the lower roller seat 201a will move relative to it, realizing the lifting and lowering adjustment of the lower roller seat 201a.

[0060] When the upper roller seat 201b is adjusted, the lifting mechanism 10, which acts on the upper roller seat 201b and the upper support seat 203b, will first act on the upper support seat 203b, causing it to descend and drive the upper pressing platform 204b to press against the bottom of the upper guide groove 206b. At this time, another hydraulic locking mechanism 9 acting on the upper pressing platform 204b will press down and lock the upper support seat 203b. When the lifting mechanism 10 continues to operate, it will only drive the upper roller seat 201b to move, thus achieving lifting.

[0061] like Figure 8-10As shown, the specific structure of the lifting mechanism 10 includes a lifting base 1001 placed in the lower roller seat 201a and the upper roller seat 201b respectively. A transmission 1002 is fixedly connected to the top of the lifting base 1001. The transmission 1002 has a built-in worm gear mechanism. The end of the worm gear is fixedly connected to a transmission shaft 1003 that extends outward from the outside of the lower roller seat 201a and the upper roller seat 201b. A lifting motor 1004 is provided on the side wall of the lower roller seat 201a and the upper roller seat 201b respectively and is connected to the transmission shaft 1003. A lead screw 1005 is connected to the worm gear shaft. A hollow sleeve 1006 is fixedly connected to the lower support seat 203a and the upper support seat 203b. A nut 1007 that is connected and cooperates with the lead screw 1005 is fixedly connected to the end of the sleeve 1006.

[0062] When adjusting the height, since the upper support seat 203b or the lower support seat 203a is locked and fixed by the hydraulic locking mechanism 9, the height adjustment can be achieved when there is relative movement between the upper support seat 203b and the upper roller seat 201b or between the lower support seat 203a and the lower roller seat 201a.

[0063] like Figure 11-16 As shown, the specific structure of the hydraulic locking mechanism 9 includes a hollow hydraulic seat 901. A pressing column 902 is inserted through the hydraulic seat 901 in the vertical direction, and two symmetrical pressing grooves 9021 are opened on the circumferential side wall of the pressing column 902. The bottom of the pressing groove 9021 is inclined upward. A movable pressing block 903 that can extend into the pressing groove 9021 is also provided in the hydraulic seat 901. The bottom of the movable pressing block 903 is also inclined upward at the same angle as the pressing groove 9021. A first oil cylinder 904 is also inserted through the side wall of the hydraulic seat 901. The piston rod of the first oil cylinder 904 is placed in the hydraulic seat 901 and acts on the movable pressing block 903. In the working state, the movable pressing block 903 slides in the hydraulic seat 901 under the action of the first oil cylinder 904, thereby pressing the pressing column 902 to extend outward and press down the lower pressing platform 204a and the upper pressing platform 204b.

[0064] When the abrasive on the brush roller 5 is worn out, a new brush roller 5 needs to be replaced. At this time, the upper roller seat 201a or 201b can be moved by a horizontal displacement mechanism. The horizontal displacement mechanism includes a rotating shaft 202 that passes through both ends of the lower roller seat 201a and the upper roller seat 201b respectively. The two ends of the rotating shaft 202 extend outward from the lower roller seat 201a and the upper roller seat 201b and are connected to rollers 207. Each of the lower roller seat 201a and the upper roller seat 201b is equipped with a horizontal displacement motor 208. The output end of the horizontal displacement motor 208 is connected to a gear on the rotating shaft 202, and the output end of the horizontal displacement motor 208 is also connected to the gear on the rotating shaft 202 to a chain 209 for transmission. In the adjustment state, the horizontal displacement motor 208 drives the chain 209 to rotate, so that the lower roller seat 201a and the upper roller seat 201b achieve horizontal displacement on the lower slide rail 701a and the upper slide rail 701b respectively through the rollers 207.

[0065] The above description is merely illustrative of the invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined by the claims, all of which should fall within the protection scope of this invention.

Claims

1. A method for improving the utilization rate of half-rollers, characterized in that, Includes the following steps: S1. Forming a half-roller-to-roller structure: Multiple brush groups consisting of upper brush rollers (501) and lower brush rollers (502) are arranged on the steel plate feeding path, and adjacent brush groups are staggered in the width direction of the steel plate; the axes of the upper brush rollers (501) and lower brush rollers (502) are arranged vertically on the same vertical line, so that the steel plate is brushed when it passes between the upper brush rollers (501) and lower brush rollers (502); Before step S2, the steel plate is passed through the steel plate support mechanism (8) arranged on the front and rear sides of the brushing group in the steel plate feeding direction so that the steel plate is fed smoothly and stably between the upper brush roller (501) and the lower brush roller (502) for thorough brushing; the three pressure rollers (801) in the steel plate support mechanism (8) are arranged in an equilateral triangle shape, and the three pressure rollers (801) in one steel plate support mechanism (8) are arranged in an upright triangle, while the three pressure rollers (801) in the other steel plate support mechanism (8) are arranged in an inverted triangle to avoid bending and protrusion when the steel plate is fed through; S2. Grinding the steel plate: Pass the steel plate through the upper brush roller (501) and the lower brush roller (502). Adjust one end of each of the two adjacent grinding groups to extend outwards to both sides of the steel plate. Then, press down and lock the grinding groups through the hydraulic locking mechanism. The grinding groups form the section to be ground and the grinding section. The section to be ground of the two grinding groups is not ground on the steel plate first, while the grinding section grinds the steel plate on the surface of the steel plate in an alternating manner. The downward locking of the hydraulic locking mechanism is achieved in the following way: the downward pressing abutment post (902) for downward fixing is movably inserted into the hollow hydraulic seat (901) and a groove (9021) is opened on the side wall of the downward pressing abutment post (902). The hydraulic seat (901) is also provided with a wedge block (903) that cooperates with the groove (9021). A first oil cylinder (904) is set on the side wall of the hydraulic seat (901) to drive the wedge block (903) to slide in the hydraulic seat (901). When the wedge block (903) slides in one direction in the hydraulic seat (901), it can press the downward pressing abutment post (902) that extends out of the hydraulic seat (901) to lock the brush group. S3. Adjust and continue brushing: After brushing for a period of time, the hydraulic locking mechanism releases the downward lock and drives the two brush groups to move relative to each other along the width of the steel plate, so that the brushing section of the brush group extends out of the sides of the steel plate and does not brush, while the brushing section brushes the steel plate surface alternately. The hydraulic locking mechanism releases the downward locking in the following way: the first cylinder (904) drives the wedge block (903) to move in the opposite direction, causing the downward pressing abutment column (902) to disengage from the wedge block (903) and release the lock on the brush group.

2. The method for improving the utilization rate of half-rollers according to claim 1, characterized in that, The upper brush roller (501) and the lower brush roller (502) are respectively installed on their respective roller seats, and then the roller seats are connected to the support seat. The support seat has an outward extending pressing platform for pressing and locking the pressing abutment column (902).

3. The method for improving the utilization rate of half-rollers according to claim 2, characterized in that, Also includes S4. Online roller change: After the abrasive on the surfaces of the upper brush roller (501) and lower brush roller (502) in one of the brush groups is completely worn, the locking of the brush group is released, and the brush group is driven to move out of the surface of the steel plate along the width direction of the steel plate and replace the new brush roller; the roller change action of the brush group will not affect the continued brushing of the other brush groups, thus realizing the online roller change action; S5. Continue grinding after roller replacement: After replacing the new half roller, drive the grinding brush group to move back to the original grinding brush position and lock it by pressing down through the hydraulic locking mechanism to continue grinding the steel plate; complete abrasive wear means that both the section to be ground and the grinding section are worn after a long period of work; online roller replacement does not require stopping the machine and has high working efficiency.

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