A mill cleaning machine

Abstract

The utility model provides a kind of rolling mill cleaning brusher.The rolling mill cleaning brusher includes drive roller group, the drive roller group includes drive roller group, the drive roller group includes upper power roller and the lower power roller corresponding with the upper power roller is set, characterized by, still include the cleaning brush roller group being equipped in the side of the drive roller group, the cleaning brush roller group includes n upper brush roller and m lower brush roller, m=n+1≥2, n upper brush roller and m lower brush roller are staggered arrangement.The utility model will upper brush roller and lower brush roller staggered arrangement, can effectively avoid the possibility of upper and lower brush roller direct collision, and eliminate the steel band surface defect caused by bristle drop, prolong the service life of cleaning brush roller, improve product quality.

Description

Technical Field

[0001] This utility model relates to the field of steel strip processing technology, and in particular to a rolling mill cleaning machine. Background Technology

[0002] In cold-rolled steel strip processing, to ensure the cleanliness of the steel strip surface and prevent impurities from embedding into it, a cleaning machine is usually installed before the rolling mill. The cleaning machine mainly consists of two rows of rotating cleaning rollers, which are made of nylon or steel wire and have bristles that can adhere to the upper and lower surfaces of the steel strip for cleaning.

[0003] In existing cleaning machines, the upper and lower cleaning rollers are arranged in a one-to-one alignment. During the steel strip feeding process, especially when the strip head passes through, the brushes on the upper and lower cleaning rollers are prone to direct collision and biting. Slight biting can cause brush bristles to fall off and land on the steel strip surface, which can then be pressed into the strip during subsequent rolling, creating defects and damaging expensive rolls. Severe biting can cause the brush rollers to seize instantly, resulting in equipment shutdown or damage to the transmission system, affecting normal processing operations.

[0004] Furthermore, in existing cleaning machines, multiple upper cleaning brush rollers are controlled by a lifting mechanism to press down or lift up. If the upper cleaning brush rollers are worn unloaded or the tail of the steel belt is detached, they will fall due to their own weight or the pressure of the drive (such as hydraulic pressure) and collide directly with the lower cleaning brush rollers, causing damage. Utility Model Content

[0005] The purpose of this utility model is to provide a mill cleaning brush machine that fundamentally avoids the problem of brush roller biting during material feeding by changing the layout of the cleaning brush rollers.

[0006] The technical solution of this utility model is: a mill cleaning and brushing machine, including a drive roller group, the drive roller group including an upper power roller and a lower power roller corresponding to the upper power roller, characterized in that it further includes a cleaning roller group disposed beside the drive roller group, the cleaning roller group including n upper brush rollers and m lower brush rollers, m=n+1≥2, the n upper brush rollers and m lower brush rollers are staggered.

[0007] In the above scheme, the upper and lower brush rollers are arranged in an alternating manner, which can effectively avoid the possibility of direct collision between the upper and lower brush rollers, eliminate surface defects on the steel strip caused by brush bristle shedding, extend the service life of the cleaning brush rollers, and improve product quality.

[0008] Preferably, each of the upper brush rollers is connected to a drive cylinder for driving the upper brush roller to move closer to or away from the lower brush roller.

[0009] Preferably, the upper power roller is connected to a drive cylinder for driving the upper power roller to move closer to or away from the lower power roller.

[0010] Preferably, the drive cylinder is a hydraulic cylinder.

[0011] Preferably, m is an odd number. An odd number of lower brush rollers can increase the contact area with the steel strip, forming a trapezoid with the lower base longer than the upper base together with the upper brush roller, thus better supporting the steel strip.

[0012] Preferably, there are two sets of drive rollers, and the cleaning roller set is disposed between the two sets of drive rollers.

[0013] Preferably, a sensor electrically connected to the PLC control unit is provided on the side of the drive roller assembly, and the sensor is located away from the cleaning roller assembly.

[0014] Compared with related technologies, the beneficial effects of this utility model are as follows: I. This utility model places the upper brush roller between two lower brush rollers to form an interlaced arrangement structure, which can effectively avoid the possibility of direct collision between the upper and lower brush rollers, eliminate surface defects on the steel strip caused by brush bristle shedding, extend the service life of the cleaning brush roller, and improve product quality. Second, this utility model has an independent drive cylinder on each upper brush roller to realize independent pressing, lifting and pressure control of a single upper brush roller, thus avoiding damage to the upper brush roller caused by its own weight falling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the mill cleaning machine provided by this utility model.

[0016] In the attached diagram: 1. Drive roller assembly; 11. Upper power roller; 12. Lower power roller; 2. Cleaning roller assembly; 21. Upper brush roller; 22. Lower brush roller; 3. Drive cylinder; 4. Sensor; 5. Hydraulic system; 6. PLC control unit; 7. Steel belt. Detailed Implementation

[0017] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0018] like Figure 1 As shown, the mill cleaning and brushing machine provided in this embodiment includes a drive roller group 1, a cleaning and brushing roller assembly 2, a drive cylinder 3, a sensor 4, a hydraulic system 5, and a PLC control unit 6.

[0019] The drive roller group 1 includes an upper drive roller 11 and a lower drive roller 12 corresponding to the upper drive roller 11. The cleaning roller group 2 includes n upper brush rollers 21 and m lower brush rollers 22, where m = n + 1 ≥ 2, and the upper brush rollers 21 are located between two lower brush rollers 22.

[0020] The lower power roller 12 and lower brush roller 22 can be rotatably mounted on the worktable via a mounting bracket or other structure, and are not axially telescopic. Each upper power roller 11 and upper brush roller 21 is independently connected to a drive cylinder 3. The drive cylinder 3 can be mounted above the worktable via a mounting bracket or other structure.

[0021] In this embodiment, m=3, n=2, and the upper brush roller 21 and the lower brush roller 22 are staggered in the running direction X of the steel strip to ensure that, in the vertical projection, neither the upper brush roller 21 nor the lower brush roller 22 overlaps.

[0022] The staggered arrangement will cause the path of the steel strip 7 passing between the upper brush roller 21 and the lower brush roller 22 to be slightly wavy, but due to the flexibility of the bristles, it can still fully wrap around and clean the entire surface of the steel strip 7.

[0023] The drive cylinder 3 is a hydraulic cylinder, driven by the hydraulic system 5. The hydraulic system 5 is electrically connected to the PLC control unit 6. It can control the action of each hydraulic cylinder independently, realizing independent pressing, lifting, and pressure control of a single upper brush roller 21.

[0024] The drive roller assembly 1 is located at both ends of the cleaning roller assembly 2. Sensors 4 are provided on the outer sides of both ends of the drive roller assembly 1. One sensor 4 is located at the inlet end of the steel strip 7, and the other sensor 4 is located at the outlet end of the steel strip 7. The sensors 4 are electrically connected to the PLC control unit 6.

[0025] When the sensor 4 at the entry end detects that the steel strip 7 has entered the threading state, it sends a signal to the PLC control unit 6, which controls all the drive cylinders 3 to retract, raise the upper power roller 11 and the upper brush roller 21, so that they maintain a safe distance from the lower power roller 12 and the lower brush roller 22 respectively, to avoid possible biting.

[0026] Once both sensors 4 detect the steel belt 7, the PLC control unit 6 drives each drive cylinder 3 to extend, causing the lower power roller 12 and lower brush roller 22 to press down and contact the upper surface of the steel belt 7, maintaining the set pressure value, and starting the normal cleaning operation.

[0027] When the sensor 4 at the inlet end does not detect the steel strip 7, but the sensor 4 at the outlet end detects the steel strip 14, the drive cylinder 3 is driven to retract sequentially according to the walking path of the steel strip 7 to prevent the tail material from being slapped or bitten after passing through.

[0028] This invention uses production line signals (threading, running, tail swing) to sequentially control the brush roller assembly. This reduces damage to the brush rollers, bearings, and transmission system, and lowers spare parts consumption and maintenance workload.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mill cleaning machine, comprising a drive roller assembly (1), the drive roller assembly (1) comprising an upper power roller (11) and a lower power roller (12) corresponding to the upper power roller (11), characterized in that, It also includes a cleaning roller group (2) located next to the drive roller group (1). The cleaning roller group (2) includes n upper brush rollers (21) and m lower brush rollers (22), where m = n + 1 ≥ 2. The n upper brush rollers (21) and the m lower brush rollers (22) are staggered.

2. The mill cleaning machine according to claim 1, characterized in that, Each of the upper brush rollers (21) is connected to a drive cylinder (3) for driving the upper brush roller (21) to move closer to or away from the lower brush roller (22).

3. The mill cleaning machine according to claim 1, characterized in that, The upper power roller (11) is connected to a drive cylinder (3) for driving the upper power roller (11) to move closer to or away from the lower power roller (12).

4. The mill cleaning machine according to claim 2 or 3, characterized in that, The drive cylinder (3) is a hydraulic cylinder.

5. The mill cleaning machine according to claim 1, characterized in that, m is an odd number.

6. The mill cleaning machine according to claim 1, characterized in that, There are two sets of drive rollers (1), and the cleaning rollers (2) are arranged between the two sets of drive rollers (1).

7. The mill cleaning machine according to claim 1, characterized in that, A sensor (4) electrically connected to a PLC control unit (6) is provided on the side of the drive roller group (1), and the sensor (4) is located away from the cleaning roller group (2).

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