Plate strip grinding mechanism

Abstract

The invention discloses a plate and strip grinding mechanism, comprising a plate width measuring component, an information processing module and a frame; the plate width measuring component comprises a crossbeam, on which two sliding seats are arranged, and both sliding seats are rotatably connected with a pressure wheel; elastic members are arranged on the top surfaces of both ends of the crossbeam, and the elastic force generated by the elastic members always pushes the two sliding seats to have a tendency to approach each other so that the pressure wheels fit the two sides of the steel plate; displacement sensors are also arranged on the sides of the two sliding seats to measure the width and offset distance of the steel plate; a working beam that is perpendicular to the feeding direction of the steel plate and moves horizontally is arranged on the frame, and a grinding brush unit is arranged on the working beam, and the working beam is driven to move by a screw rod and a nut structure and a servo motor that drives the screw rod to rotate; the information processing module is electrically connected to the displacement sensor and the servo motor, and the information processing module controls the servo motor to drive the working beam to move accordingly, so that the grinding brush unit also offsets a corresponding distance to ensure sufficient grinding, thereby realizing automatic intelligent grinding.

Description

Technical Field

[0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a plate and strip grinding mechanism. Background Art

[0002] Long roll steel plates are also called strips. Due to the existing steel plate production process and the characteristics of its own materials, rust will appear on the surface after being stacked or used for a period of time. If the oxide scale is not treated, it will affect the use of the steel plate. The pickling method no longer meets the requirements of environmental protection and green production.

[0003] The invention patent with patent number 201921666810.5 discloses a device for removing rust from the surface of a steel plate. A pair of horizontally arranged rollers are installed between two vertical beams. The two rollers are arranged up and down and a gap of the steel plate is formed between the two rollers. The liftable rust removal mechanism includes an upper beam, a working main beam, a bearing seat and a descaling roller. The working main beam is arranged below the upper beam, and the working main beam moves up and down relative to the upper beam. The bearing seat is arranged at the left and right ends of the working main beam, and the descaling roller is rotatably connected to the left and right bearing seats. The upper beam moves horizontally relative to the first frame and drives the working main beam to move horizontally synchronously, thereby driving the descaling roller to move horizontally. The descaling roller of the present invention is a liftable and horizontally movable type, so that its own height and left and right position can be adjusted to adapt to the brushing requirements of steel plates in different states.

[0004] Although the scheme can be used to grind the steel plate, the width of the steel plate to be grinded is different, and the steel plate will deflect left and right along its feeding direction during the feeding process. If the pair of rollers is used for grinding, it can only grind the fixed position. Although it can be adjusted, it cannot achieve real-time position change, resulting in uneven grinding. Due to the different widths of the steel plates, the abrasive wires at some positions on the rollers will be ground, but the abrasive wires at some positions will not be ground. At this time, the brush roller cannot grind other steel plates. When grinding steel plates of other specifications, new rollers need to be replaced, which will cause a great deal of waste.

[0005] When the model and size difference of steel plates is small, it is often impossible to distinguish them with the naked eye. If manual measurement is used, the efficiency will undoubtedly be extremely low. Therefore, there is an urgent need for a device that can automatically obtain the plate width and offset data and automatically grind according to the plate width and offset, so as to adjust the corresponding position of the brush roller according to the plate width and the offset of the steel plate and improve production efficiency. Summary of the invention

[0006] In order to solve the above-mentioned technical problems, the purpose of the present invention is to provide a plate and strip grinding mechanism, which obtains the plate width and steel plate offset data through a plate width measuring component, and always pushes the pressure wheel close to both sides of the steel plate through the elastic force provided by the elastic part, thereby monitoring the width of the steel plate in real time, and obtains the sliding seat offset through a displacement sensor to automatically calculate the width or offset of the steel plate. The data monitored by the displacement sensor is sent to the servo motor in real time through the information processing module and controls it to drive the working beam to move accordingly, so that the position of the brush unit is also adjusted accordingly so that all abrasives cover the surface of the steel plate to achieve synchronous wear.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0008] A plate and strip grinding mechanism comprises a plate width measuring component, an information processing module and a frame; the plate width measuring component comprises a crossbeam, the crossbeam is provided with two sliding seats which can slide along the length direction of the crossbeam, and the two sliding seats are rotatably connected with horizontally arranged pressing wheels for pressing the two sides of the steel plate; the top surfaces of both ends of the crossbeam are provided with elastic members connected with the side walls of the sliding seats, and the elastic force generated by the elastic members always pushes the two sliding seats to have a tendency to approach each other so that the pressing wheels fit the two sides of the steel plate; displacement sensors for real-time monitoring of the displacement of the sliding seats are also provided on the sides of the two sliding seats to measure the width and offset distance of the steel plate; a working beam which is perpendicular to the feeding direction of the steel plate and moves horizontally is provided on the frame, and a lifting and lowering brush unit is provided on the working beam, and the working beam is driven to move by a screw rod and a nut structure and a servo motor which drives the screw rod to rotate; the information processing module is electrically connected to the displacement sensor and the servo motor, and when the information processing module receives a signal of a change or offset of the width of the steel plate, it controls the servo motor to drive the working beam to move accordingly, so that the brush unit also offsets a corresponding distance to ensure sufficient grinding and brushing.

[0009] When monitoring the width and offset of the steel plate, before the steel plate enters between the two sliding seats, the displacement sensors at the left and right ends will respectively record the initial extended distance, so that when the steel plate is fed, the pressing wheels on both sides of the steel plate will change their positions due to the different widths of the steel plate. If the steel plate is wider, the pressing wheels will move away from each other, and if the steel plate is narrower, the pressing wheels will move closer to each other. The displacement sensor records the moving distance and then measures the width of the steel plate. Similarly, if the steel plate is offset, the pressing wheels in the two sliding seats will offset to the same side, and the displacement sensor will also monitor the offset distance. On the one hand, the elastic part can generate elastic force to push the sliding seat so that the pressure wheel can press on both sides of the steel plate; on the other hand, if the width of the steel plate increases, or it shifts to one side, the elastic part can also allow the sliding seat to move accordingly, which will not hinder the movement of the sliding seat and interfere with the feeding of the steel plate; during grinding, the data monitored by the displacement sensor can be transmitted to the information processing module, and then the corresponding signal command is issued to adjust the position of the brush roller after calculating the new data, thereby ensuring that the brush roller can always completely brush the surface of the steel plate, and the abrasive on the surface of the brush roller can be consumed synchronously, thereby achieving a grinding effect.

[0010] Preferably, the sliding seat is a double-layer frame structure, which includes a sliding portion located below and a pressure wheel mounting frame integrally connected to the top surface of the sliding portion; the pressure wheel mounting frame is provided with an opening on the side close to the steel plate feeding, and the pressure wheel is rotatably connected to the pressure wheel mounting frame.

[0011] On the one hand, the setting of the sliding seat provides a point for installing the pressure wheel. On the other hand, when the width of the steel plate changes or the steel plate shifts, the pressure wheel will be subjected to a pressure force moving in one direction. The movement of the pressure wheel is achieved by the sliding of the sliding part, so that the pressure wheel continues to press on both sides of the steel plate.

[0012] Preferably, the pressure wheel mounting frame is further provided with two guide bevel blocks arranged up and down at the opening position, and the guide bevel blocks are tilted and opened outward to facilitate guiding the steel plate to the side of the pressure wheel.

[0013] During the grinding process, the pressing wheel will move accordingly due to the different widths of the steel plates, and may be temporarily separated. When the steel plate is fed, it will shake up and down, and may be separated from the pressing wheel, resulting in the inability to measure the accurate width, and even hindering the feeding of the steel plate. The guide bevel can smoothly guide the steel plate to the side of the pressing wheel for pressing.

[0014] Preferably, the elastic member is a cylinder, the cylinder barrel of the cylinder is fixedly connected to the top surface of the cross beam, and the piston rod of the cylinder is connected to the side wall of the sliding part.

[0015] Preferably, one end of the displacement sensor is hinged to the top end of the cylinder barrel of the cylinder, and the other end of the displacement sensor is hinged to the side wall of the pressure wheel mounting frame.

[0016] Preferably, the pressing wheel is indented along its circumferential surface to form a limiting groove to prevent the steel plate from escaping from the pressing.

[0017] The function of the limit groove is also to ensure that the steel plate can always be pressed between the two pressing wheels to limit the steel plate, thereby ensuring the accuracy of the measurement.

[0018] Preferably, the top surface of the crossbeam is provided with a slide rail along its length direction, and the bottom of the sliding part is slidably connected to the slide rail; a reinforcing rib plate is also provided inside the sliding part. The reinforcing rib plate can improve the overall strength of the sliding seat, thereby ensuring the stability and continuity of the monitoring process.

[0019] Preferably, the brush grinding unit comprises a brush roller and a driving motor for driving the brush roller to rotate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The elastic member pushes the pressing wheel to always press against both sides of the steel plate, and the displacement sensor measures the offset of the sliding seat to obtain the width of the steel plate; the sliding seat slides along the length of the beam to adapt to steel plates of different widths, with a wide range of adaptability;

[0022] 2. The different widths of the steel plates and the offset of the feed route cause the sliding seat to move accordingly, which will not only not hinder the feeding of the steel plates, but also the displacement sensor can monitor this in real time, thereby sending a signal to adjust the corresponding position of the brush roller to ensure the synchronous wear of the abrasive on the brush roller.

[0023] 3. For the processing of plates and strips of different widths and the deviation of the plates and strips during the feeding process, automatic detection can be carried out and the brush roller movement can be adjusted to ensure the grinding accuracy and qualified rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the plate width measurement component in the present invention;

[0025] Figure 2 is a front view of the board width measuring assembly of the present invention;

[0026] Figure 3 It is a schematic diagram of the plate width measuring component of the present invention being applied to a plate and strip grinding mechanism;

[0027] Figure 4 It is a schematic diagram of the real-time monitoring results of the displacement sensor in the present invention.

[0028] Description of the drawings: 1. cross beam; 2. sliding seat; 201. sliding part; 202. pressure wheel mounting frame; 203. opening; 204. reinforcing rib plate; 3. pressure wheel; 301. limiting groove; 4. elastic member; 5. displacement sensor; 6. guide bevel block; 7. slide rail. DETAILED DESCRIPTION

[0029] The specific implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] In this embodiment, a plate strip grinding mechanism is specifically disclosed, including a plate width measurement component, an information processing module and a frame; wherein, Figure 1-4 As shown, the specific structure of the plate width measuring assembly includes a crossbeam 1, on which are provided two sliding seats 2 which can slide along the length direction of the crossbeam 1, and on which the two sliding seats 2 are rotatably connected horizontally arranged pressing wheels 3 for pressing the two sides of the steel plate; the top surfaces of both ends of the crossbeam 1 are provided with elastic members 4 connected to the side walls of the sliding seats 2, and the elastic force generated by the elastic members 4 always pushes the two sliding seats 2 to have a tendency to move closer to each other so that the pressing wheels 3 fit the two sides of the steel plate; displacement sensors 5 for real-time monitoring of the displacement of the sliding seats 2 are also provided on the sides of the two sliding seats 2 to measure the width and offset distance of the steel plate.

[0031] The sliding seat 2 is a double-layer frame structure, which includes a sliding part 201 located below and a pressure wheel mounting frame 202 integrally connected to the top surface of the sliding part 201; the pressure wheel mounting frame 202 is provided with an opening 203 on the side close to the steel plate feeding, and the pressure wheel 3 is rotatably connected in the pressure wheel mounting frame 202.

[0032] The elastic member 4 is a cylinder, the cylinder barrel of the cylinder is fixedly connected to the top surface of the cross beam 1 , and the piston rod of the cylinder is connected to the side wall of the sliding part 201 .

[0033] The frame is provided with a working beam that is perpendicular to the feeding direction of the steel plate and moves horizontally, and the working beam is provided with a lifting brush unit, and the working beam is driven to move by a screw nut structure and a servo motor that drives the screw to rotate; the information processing module is electrically connected to the displacement sensor 5 and the servo motor, and when the information processing module receives a signal of a change or offset in the width of the steel plate, the servo motor is controlled to drive the working beam to move accordingly, so that the brush unit is also offset by a corresponding distance to ensure sufficient brushing. The brush unit includes a brush roller and a driving motor that drives the brush roller to rotate.

[0034] In actual production, in order to ensure the continuity of production, steel plates of different widths will be temporarily welded together to form a strip, and then the strip will be fed through the brush unit for brushing. Before brushing, the strip will first pass through the weld detector, and then through the measuring device, and the position of the brush roller will be adjusted according to the measured data.

[0035] Specifically, the weld detector is also electrically connected to the switch of the cylinder, and the weld detector can be arranged above or below the steel plate feeding route. When a weld is detected, it means that two steel plates of different widths may be connected at this time, and a signal is sent to the cylinder to control the piston rod of the cylinder to retract, so that the two sliding seats 2 are separated from each other and are in an open state, because the specific width of the steel plate to be passed is not known at this time; after opening, as the plate strip is fed, the piston rod of the cylinder can push the sliding seats 2 closer to each other, so that the pressing wheel 3 can abut against both sides of the steel plate. During the continuous feeding of the plate strip, whenever a weld is detected, the above steps will be repeated.

[0036] A displacement sensor 5 is provided at each of the left and right ends of the crossbeam 1 because the strip is welded together by steel plates of different widths, and left and right offsets may occur during the feeding process. The two sensors can monitor the changes in the width of the left and right sides of the steel plate. For example, one section of the strip is welded by two steel plates with increasing widths, but the welding position may be biased to the left or right, or the narrower width may be welded in the middle of the side wall of the wider width steel plate. After the front narrower steel plate passes between the two pressing wheels 3, when the rear wider steel plate passes again, the weld detector detects the presence of a weld, sends a signal, and then the two pressing wheels 3 move outward and open. After the welded part of the strip passes, the cylinder pushes the two pressing wheels 3 to continue pressing against the two sides of the steel plate; because the steel plate is wider, the position of the pressing wheels 3 on both sides will change from the previous position. At this time, the two displacement sensors 5 can respectively record the distance moved on the left and right sides, so that the result obtained is more accurate, and there is no need to consider the welding position between the steel plates.

[0037] If there is only one displacement sensor 5 located at the left end of the beam 1, then the position change of the right side of the steel plate, whether due to the increase or decrease in width, can only be detected on the left side, while the position change on the right side cannot be detected, and the measurement of the plate width is obviously not accurate enough. Of course, there is another method, which is to relatively fix the sliding seat 2 on the left or right side of the beam 1. When the steel plate passes through, only one side will be offset. At this time, only one displacement sensor 5 is needed for detection; but since the feeding of the steel plate will be offset left and right, if the sliding seat 2 at one end of the beam 1 is relatively fixed, it will interfere with the feeding of the steel plate and affect the grinding of the steel plate, so this method is not practical enough.

[0038] The measurement of the steel plate width is achieved in the following way: when not working, the two cylinder piston rods naturally extend from the two ends of the beam 1 to the middle position of the beam 1 and push against the sliding seat 2. At this time, the distances between the sliding seats 2 on the left and right sides and the left and right ends of the beam 1 are D1 and D2 respectively, and the length of the beam 1 is also easy to measure as L. If a steel plate happens to pass through it at this time, the width of the steel plate = L-(D1+D2); as the plate strip is fed and the width of the plate strip changes, the displacement sensor 5 can monitor that the distance moved by the sliding seat 2 on the left is d1, and the distance moved by the sliding seat 2 on the right is d2. At this time, the width of the steel plate = L-[(D1±d1)+(D2±d2)].

[0039] For example, when only the width of the steel plate decreases, the displacement sensors 5 on the left and right sides will shift toward the middle of the beam 1, and the displacement sensor 5 on the left side will monitor the shift distance as d1, and the displacement sensor 5 on the right side will monitor the shift distance as d2. At this time, the width of the steel plate is L-[(D1+d1)+(D2+d2)]. If the width of the steel plate decreases and shifts to the left at the same time, the displacement sensor 5 on the left side can monitor the steel plate shift distance to the left as d1, and the displacement sensor 5 on the right side can monitor the steel plate shift distance to the left as d2. At this time, the width of the steel plate is L-[(D1-d1)+(D2+d2)].

[0040] The displacement sensor 5 will send the above data to the information processing module in real time, and then the width of the steel plate can be obtained after calculation. The data monitored by the displacement sensors 5 on the left and right sides can be transmitted to the servo motor through the information processing module to control the displacement of the brush roller. The specific process is that the servo motor rotates to drive the screw nut structure to drive the grinding brush unit to move, and then adjust the position of the brush roller so that the brush roller can always cover the surface of the steel plate. Unlike traditional brush rollers, which only brush at a fixed position, when the steel plate is offset, part of the abrasive cannot be ground; the brush roller in this embodiment can be adjusted in real time according to the width and offset of the steel plate, which can not only ensure the complete grinding of the steel plate, but also ensure the synchronous wear of the abrasive without waste.

[0041] The pressure wheel mounting frame 202 is further provided with two guide bevel blocks 6 arranged up and down at the opening position, and the guide bevel blocks 6 are tilted and opened outward to guide the steel plate to the side of the pressure wheel 3.

[0042] During the feeding process, the steel plate is also being polished, so it will have a certain degree of shaking. If there is no guide bevel 6, it is difficult to align the steel plate to the circumferential surface of the pressure wheel 3. The guide bevel 6 is arranged up and down and opened outward to gradually guide the shaking plate strip and guide the plate strip to the side of the pressure wheel 3.

[0043] The pressing wheel 3 is indented along its circumferential surface to form a limiting groove 301 to prevent the steel plate from being separated from the pressing. The limiting groove 301 can further limit the plate strip, so that the plate strip is always between the two pressing wheels 3. If there is no limiting groove 301, the shaking of the plate strip can easily cause it to be separated from the pressing of the pressing wheel 3, so that the width and offset of the plate strip cannot be accurately obtained, and even the feeding of the plate strip is affected.

[0044] The installation of the displacement sensor 5 is to hinge one end of the displacement sensor 5 to the top end of the cylinder barrel of the cylinder, and hinge the other end of the displacement sensor 5 to the side wall of the pressure wheel mounting frame 202 .

[0045] A slide rail 7 is disposed on the top surface of the cross beam 1 along its length direction, and the bottom of the sliding portion 201 is slidably connected to the slide rail 7 ; a reinforcing rib plate 204 is also disposed inside the sliding portion 201 .

[0046] When the pressing wheel 3 presses the steel belt, the shaking of the steel belt will generate force acting on the sliding seat 2, and the reinforcing rib plate 204 can improve the overall strength of the sliding seat 2, thereby ensuring continuous and stable production.

[0047] The above contents described in this specification are merely examples of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, as long as they do not deviate from the contents of the present specification or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A plate and strip grinding mechanism, characterized in that: The invention comprises a plate width measuring component, an information processing module and a frame; the plate width measuring component comprises a crossbeam (1), the crossbeam (1) is provided with two sliding seats (2) which can slide along the length direction of the crossbeam (1), and the two sliding seats (2) are rotatably connected with horizontally arranged pressing wheels (3) for pressing the two sides of the steel plate; the top surfaces of both ends of the crossbeam (1) are provided with elastic members (4) connected with the side walls of the sliding seats (2), and the elastic force generated by the elastic members (4) always pushes the two sliding seats (2) to have a tendency to move closer to each other so that the pressing wheels (3) fit the two sides of the steel plate; displacement sensors (5) for real-time monitoring of the displacement of the sliding seats (2) are also provided on the sides of the two sliding seats (2) to measure the width and displacement distance of the steel plate; the frame is provided with a working beam which is perpendicular to the feeding direction of the steel plate and moves horizontally, and the working beam is provided with a brush unit which can be raised and lowered. The working beam is driven to move by a screw-nut structure and a servo motor that drives the screw to rotate; the information processing module is electrically connected to the displacement sensor (5) and the servo motor, and when the information processing module receives a signal indicating a change or offset in the width of the steel plate, it controls the servo motor to drive the working beam to move accordingly, so that the brush unit also offsets a corresponding distance to ensure sufficient brushing; the sliding seat (2) is a double-layer frame structure, the sliding seat (2) comprises a sliding portion (201) located at the bottom and a pressure wheel mounting frame (202) integrally connected to the top surface of the sliding portion (201); the pressure wheel mounting frame (202) is provided with an opening (203) on the side close to the steel plate feeding, and the pressure wheel (3) is rotatably connected to the pressure wheel mounting frame (202); the pressure wheel (3) is indented along its circumferential surface to form a limit groove (301) to prevent the steel plate from escaping from the pressure.

2. The plate and strip grinding mechanism according to claim 1, characterized in that: The pressure wheel mounting frame (202) is also provided with two guide bevel blocks (6) arranged up and down at the opening position, and the guide bevel blocks (6) are tilted and opened outwards to facilitate guiding the steel plate to the side of the pressure wheel (3).

3. The plate and strip grinding mechanism according to claim 1, characterized in that: The elastic member (4) is a cylinder, the cylinder barrel of the cylinder is fixedly connected to the top surface of the crossbeam (1), and the piston rod of the cylinder is connected to the side wall of the sliding part (201).

4. The plate and strip grinding mechanism according to claim 3, characterized in that: One end of the displacement sensor (5) is hinged to the top end of the cylinder barrel of the cylinder, and the other end of the displacement sensor (5) is hinged to the side wall of the pressure wheel mounting frame (202).

5. The plate and strip grinding mechanism according to claim 1, characterized in that: The top surface of the crossbeam (1) is provided with a slide rail (7) along its length direction, and the bottom of the sliding portion (201) is slidably connected to the slide rail (7); a reinforcing rib plate (204) is also provided inside the sliding portion (201).

6. The plate and strip grinding mechanism according to claim 1, characterized in that: The brush grinding unit includes a brush roller and a driving motor for driving the brush roller to rotate.

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