A guide plate device for cleaning oil stains on a strip surface

Abstract

This utility model relates to the technical field of auxiliary equipment for rolling mills, specifically to a guide plate device for cleaning oil stains from the surface of strip. The device includes a guide plate, a guide rail seat, and a suction assembly. The suction assembly includes a suction pipe disposed on the guide plate and connected to an air source, with its upper end penetrating the upper surface of the guide plate. The guide plate is slidably mounted on the guide rail seat and slides along the left-right direction of the guide rail seat. This guide plate device not only removes and collects residual rolling oil from the lower surface of the strip but also does not affect the replacement of rolls in the rolling mill assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for rolling mills, and specifically to a guide plate device for cleaning oil stains on the surface of strip. Background Technology

[0002] During the rolling process of metal strip, rolling oil is often sprayed onto the rolls to reduce the temperature of the strip and rolls during the rolling process, prevent the strip from deforming and cracking due to excessive temperature, and at the same time lubricate and reduce wear between the rolls and the strip.

[0003] However, this cooling method results in a large amount of rolling oil remaining on the lower surface of the strip after it has been rolled by the rolling mill. The residual rolling oil reduces the surface smoothness of the lower surface of the strip, resulting in poor quality of the lower surface. Therefore, it is often necessary to treat the rolling oil on the lower surface of the strip separately.

[0004] While existing technologies include methods to blow rolling oil off the lower surface of the strip by using a purging device, this method not only easily leads to random splashing of rolling oil but also hinders oil mist recovery, thus affecting the cleanliness of the production environment. Furthermore, since the temperature of the work rolls in the rolling mill rises after a period of operation, they often need to be replaced. However, the purging devices in existing technologies are often fixed at the discharge end of the rolling mill, which is not conducive to the roll changing operation of the work rolls in the rolling mill. Summary of the Invention

[0005] This invention addresses the problems in existing technologies where cleaning residual rolling oil from the lower surface of strip using a blowing device results in oil splattering, hindering oil mist recovery; furthermore, the blowing device is often fixed at the discharge end of the rolling mill, making it inconvenient for changing the work rolls. This invention provides a guide plate device for cleaning oil stains from the strip surface. The guide plate device of this invention not only removes and collects residual rolling oil from the lower surface of the strip but also does not interfere with the changing of the rolls in the rolling mill.

[0006] To solve the above problems, the technical solution of this utility model is:

[0007] A guide plate device for cleaning oil stains on the surface of strip material includes a guide plate, a guide rail seat, and a suction assembly. The suction assembly includes a suction pipe, which is disposed on the guide plate and connected to an air source, and the upper end of the suction pipe penetrates the upper surface of the guide plate.

[0008] The guide plate is slidably mounted on the guide rail seat, and the guide plate slides along the left and right directions of the guide rail seat.

[0009] By adopting the above solution, by setting a suction pipe on the guide plate and having the upper end of the suction pipe penetrate the upper surface of the guide plate, the residual rolling oil on the lower surface of the strip can be effectively sucked away by connecting the suction pipe to an air source, thus avoiding the random splashing of rolling oil and facilitating the recovery of oil mist.

[0010] Furthermore, by sliding the guide plate onto the guide rail seat, when it is necessary to replace the rolls in the roll assembly, the guide plate can be moved away from the discharge end of the roll assembly by sliding. The operation is simple and the roll replacement will not be affected by the installation of the guide plate.

[0011] Based on the above solution, the present invention can be further improved as follows:

[0012] Furthermore, the suction tube is an internally hollow air amplifier. The side wall of the air amplifier is provided with an air inlet that communicates with the interior. The upper inner wall of the air amplifier is inverted conical and the lower inner wall is conical. The inner diameter of the upper end of the air amplifier is larger than that of the lower end, so that an airflow enhancement cavity is formed inside the air amplifier. The air inlet of the air amplifier is connected to the air source, and the airflow enhancement cavity of the air amplifier penetrates the upper surface of the guide plate.

[0013] Furthermore, the suction assembly also includes an airflow distribution pipe, one end of which is connected to an air source and the other end of which is closed. A through hole is provided on the pipe wall of the airflow distribution pipe, and the through hole is connected to the air inlet through an air pipe.

[0014] Furthermore, the upper end of the air amplifier is positioned perpendicular to the upper surface of the guide plate, and the upper end of the suction tube is not higher than the upper surface of the guide plate.

[0015] In the further embodiment described above, the suction pipe is an air amplifier, and the airflow enhancement cavity of the air amplifier penetrates the upper surface of the guide plate. This allows a small amount of airflow to be introduced into the airflow enhancement cavity through the air inlet, which in turn generates more airflow above the guide plate. This helps to draw the oil stains on the surface of the strip into the suction pipe, thereby reducing energy consumption.

[0016] Furthermore, the guide plate device also includes a power component, which is used to drive the guide plate to slide in the left and right direction along the guide rail seat.

[0017] Furthermore, the upper surface of the guide rail seat is provided with a guide strip, and the guide plate is provided with a through groove. The through groove is engaged with the guide strip and slides along the length of the guide strip, which can guide the sliding path of the guide plate.

[0018] Furthermore, the guide rail base is provided with limiting grooves at both the front and rear ends, and the guide plate is respectively locked in the limiting grooves at both the front and rear ends. The upper end surface of the guide rail base is flush with the upper end surface of the guide plate, which can prevent the guide plate from shifting in the front and rear directions during sliding.

[0019] Furthermore, the limiting groove is stepped, and the stepped openings of the limiting grooves at the front and rear ends of the guide rail seat are arranged opposite to each other.

[0020] Furthermore, a pressure plate is provided above the limiting groove, and the lower surface of the pressure plate is flush with the upper end face of the guide rail seat and the upper end face of the guide plate, thereby preventing the guide plate from jumping vertically during sliding.

[0021] Furthermore, T-shaped limiting blocks are respectively provided at the front and rear ends of the guide rail base. The limiting blocks are fixedly connected to the guide rail base by chains or ropes. Both the guide plate and the guide rail base are provided with limiting holes. When the guide plate retracts, the limiting holes on the guide plate correspond vertically to the limiting holes on the guide rail base. The guide plate and the guide rail base are fixed by inserting the limiting blocks into the limiting holes, thereby ensuring that the position of the guide plate can be locked after the guide plate retracts, and preventing the guide plate from moving accidentally and affecting the replacement of the rolls in the roll-making device.

[0022] The beneficial effects of this utility model through the above technical solution are as follows:

[0023] 1. In this utility model, by setting a suction pipe on the guide plate and connecting the suction pipe to an air source, the suction pipe can effectively suck away the residual rolling oil on the lower surface of the strip during the process of the guide plate guiding the strip, thus avoiding the random splashing of rolling oil; and the guide plate is slidably set on the guide rail seat, so that when it is necessary to replace the rolls in the roll device, the guide plate can be moved away from the discharge end of the roll device by sliding, and the replacement of the rolls will not be affected by the setting of the guide plate device.

[0024] 2. In a further embodiment of this utility model, the suction pipe adopts an air amplifier, so that a small amount of airflow is introduced into the airflow enhancement cavity of the air amplifier through the air inlet of the air amplifier, which can generate more airflow above the guide plate to help draw the oil stains on the surface of the strip into the suction pipe, thereby reducing energy consumption.

[0025] 3. In a further embodiment of this utility model, by providing a guide strip on the upper surface of the guide rail seat and opening a through groove on the guide plate, the sliding path of the guide plate can be guided; and by providing limiting grooves at both the front and rear ends of the guide rail seat, the front and rear ends of the guide plate can be limited, thereby preventing the guide plate from shifting in the front and rear directions during sliding; and by providing a pressure plate above the limiting groove, the vertical jumping of the guide plate during sliding can also be prevented. The above structure can comprehensively ensure the stability of the guide plate during sliding.

[0026] 4. In a further embodiment of this utility model, T-shaped limiting blocks are set at the front and rear ends of the guide rail seat, and limiting holes are set on the guide plate and the guide rail seat. When the guide plate is retracted, the limiting holes on the guide plate and the limiting holes on the guide rail seat correspond vertically. This allows the guide plate to be locked in position by inserting the limiting blocks into the limiting holes on the guide plate and the guide rail seat when the guide plate is retracted, ensuring that the guide plate will not move accidentally when retracted, thus affecting the replacement of the rolls in the roll assembly. Attached Figure Description

[0027] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0028] Figure 2 This is a schematic diagram of the suction tube in this utility model;

[0029] Figure 3 This is the second structural schematic diagram of this utility model (view from below).

[0030] Figure 4 This is the third structural schematic diagram of this utility model (view from below).

[0031] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle;

[0032] Figure 6 This is a cross-sectional view of the present invention in use;

[0033] Figure 7 yes Figure 1 A magnified view of a portion of point A in the middle.

[0034] The labels in the attached diagram are: 1, guide plate; 101, through groove.

[0035] 2. Guide rail base, 201. Guide bar, 202. Limiting groove;

[0036] 3. Suction assembly, 301, suction pipe, 3011, air inlet, 3012, airflow enhancement chamber, 302, airflow distribution pipe, 3021, through hole;

[0037] 4. Power components, 401, hydraulic cylinder lug seat;

[0038] 5. Pressure plate, 6. Limiting block, 7. Limiting hole, 8. Roller. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0040] like Figure 1As shown, a guide plate device for cleaning oil stains on the surface of strip includes a guide plate 1, a guide rail seat 2, and a suction assembly 3. The guide plate device is set at the discharge end of the rolling mill device. After the strip at the discharge end of the rolling mill device passes the upper surface of the guide plate 1, it is wound up by the coiler on the outlet side of the rolling mill device. The upper part of the guide rail seat 2 is a rectangular plate. The front and rear ends of the plate are provided with connecting seats. The connecting seats are provided with threaded holes for fixing the guide rail seat 2 to the discharge end of the rolling mill device by bolts or other connecting parts. The guide plate 1 is slidably set on the guide rail seat 2 for guiding the strip. Specifically, the guide plate 1 is slidably set on the upper end of the guide rail seat 2 and slides along the left and right direction of the guide rail seat 2. The left and right direction of the guide rail seat 2 is consistent with the running direction of the strip.

[0041] The suction assembly 3 includes a suction tube 301, which is a cylindrical tube with openings at both the top and bottom. A connection port communicating with the interior is provided on the side wall of the suction tube 301. The suction tube 301 is disposed on the guide plate 1. The connection port on the side wall of the suction tube 301 is connected to the air source through an air pipe. The suction tube 301 is disposed perpendicular to the upper surface of the guide plate 1, and the upper end of the suction tube 301 penetrates through the upper surface of the guide plate 1 but does not exceed the upper surface of the guide plate 1.

[0042] The suction system generates negative pressure within the inner suction pipe 301, creating an airflow from the upper surface of the guide plate 1 into the suction pipe 301. This draws oil stains from the lower surface of the strip into the suction pipe 301, where they drip down from the lower opening, thus cleaning the oil stains. A collection box at the lower end of the suction pipe 301 collects the oil stains. Furthermore, the upper end of the suction pipe 301 is not higher than the upper surface of the guide plate 1, preventing the upper end of the suction pipe 301 from extending beyond the upper surface of the guide plate 1 and affecting the winding of the strip.

[0043] As one possible implementation method, such as Figure 2 As shown, the suction pipe 301 is an air amplifier with a hollow interior and openings at both the top and bottom. The side wall of the air amplifier has an air inlet 3011 that communicates with the interior. The inner wall of the upper part of the air amplifier is inverted conical and the inner wall of the lower part is conical. The connection between the upper and lower parts of the air amplifier is rounded, and the inner diameter of the upper part of the air amplifier is larger than that of the lower part, thus forming an airflow enhancement cavity 3012 inside the air amplifier. The air inlet 3011 of the air amplifier is connected to the air source, and the airflow enhancement cavity 3012 of the air amplifier penetrates the upper surface of the guide plate 1.

[0044] In this embodiment, by using an air amplifier, a small amount of airflow is introduced into the airflow enhancement cavity 3012 through the air inlet 3011, which can generate more airflow above the guide plate 1 to help draw the oil stains on the surface of the strip into the air amplifier, thereby reducing energy consumption; and a collection box is provided on the ground below the air amplifier to collect the oil stains discharged from the lower end of the air amplifier, which can achieve the collection of oil stains on the lower surface of the strip without affecting the sliding of the guide plate 1.

[0045] As one possible implementation method, such as Figures 3-5 As shown, the suction assembly 3 also includes an airflow distribution pipe 302. The airflow distribution pipe 302 is fixedly disposed at the bottom of the guide plate 1 and is arranged along the front and rear ends of the guide plate 1. One end of the airflow distribution pipe 302 is connected to the air source, and the other end of the airflow distribution pipe 302 is closed. A through hole 3021 is provided on the pipe wall of the airflow distribution pipe 302. The through hole 3021 is connected to the air inlet 3011 through an air pipe. The number of through holes 3021 is the same as the number of air amplifiers. In this embodiment, the number of through holes 3021 and the number of air amplifiers are the same, with 24 in each case and connected one-to-one. There are 12 air amplifiers distributed at each of the front and rear ends of the guide plate 1, and the 12 air amplifiers are arranged in a rectangular array. The corresponding through holes 3021 and the air inlets 3011 of the air amplifiers are connected through an air pipe.

[0046] In this embodiment, the through holes 3021 are connected one-to-one with the air amplifier, which can evenly distribute the airflow in the air distribution pipe 302 into the air amplifier, ensuring that a uniform negative pressure can be formed in the air amplifier, thereby ensuring that the grease cleaning effect on the entire lower surface of the strip is consistent; and in this embodiment, a valve is provided on the air pipe connecting the air distribution pipe 302 to the air source (the valve can be any valve in the prior art, such as a ball valve or a butterfly valve), so that the negative pressure airflow to the air amplifier can be controlled by controlling the opening and closing of the valve, which is convenient for operation.

[0047] As one possible implementation method, such as Figure 6 As shown, the guide plate device also includes a power component 4, which is located below the guide rail seat 2. The power component 4 is used to drive the guide plate 1 to slide in the left and right direction along the guide rail seat 2. Specifically, the power component 4 is a hydraulic cylinder. The hydraulic cylinder is connected to the hydraulic pump through an oil pipe. The cylinder body of the hydraulic cylinder is fixedly connected to the guide rail seat 2. The piston rod of the hydraulic cylinder is hinged to the guide plate 1. The lower surface of the guide plate 1 is provided with a cylinder lug seat 401. The piston rod of the hydraulic cylinder is connected to the guide plate 1 through the cylinder lug seat 401.

[0048] As one possible implementation method, such as Figure 1As shown, cylindrical limiting blocks 6 with a T-shaped cross-section are respectively provided at the front and rear ends of the guide rail seat 2. The limiting blocks 6 are fixedly connected to the guide rail seat 2 by chains or ropes. Both the guide plate 1 and the guide rail seat 2 are provided with limiting holes 7. When the guide plate 1 is retracted, the limiting holes 7 on the guide plate 1 and the limiting holes 7 on the guide rail seat 2 correspond vertically. This allows the guide plate 1 to be locked in position by inserting the lower end of the limiting block 6 into the limiting holes 7 on the guide plate 1 and the guide rail seat 2, with the upper end of the limiting block 6 resting on the guide plate 1. This ensures that the guide plate 1 will not move accidentally after retraction, thus affecting the replacement of the rolls 8 in the roll changing device.

[0049] As one possible implementation method, such as Figure 1 As shown, a number of parallel guide bars 201 are provided on the left side of the upper end of the guide rail seat 2. The length extension direction of the guide bars 201 is consistent with the running direction of the strip. A through groove 101 with a left opening is provided on the left side of the guide plate 1. The through groove 101 is engaged on the guide bar 201 and slides along the length direction of the guide bar 201, thereby limiting the sliding path of the guide plate 1.

[0050] As one possible implementation method, such as Figure 1 and Figure 7 As shown, both the front and rear ends of the guide rail seat 2 are provided with stepped limiting grooves 202, and the stepped openings of the limiting grooves 202 at the front and rear ends of the guide rail seat 2 are arranged opposite to each other. The front and rear ends of the guide plate 1 are respectively locked in the limiting grooves 202. The upper end surface of the guide rail seat 2 is flush with the upper end surface of the guide plate 1, which can prevent the guide plate 1 from shifting in the front and rear direction during the sliding process.

[0051] As one possible implementation, a pressure plate 5 is provided above the limiting groove 202. The lower surface of the pressure plate 5 is flush with the upper end surface of the guide rail seat 2 and the upper end surface of the guide plate 1, thereby preventing the guide plate 1 from jumping vertically during the sliding process.

[0052] In this embodiment, when used:

[0053] When the strip exits from the discharge end of the rolling device, the power component 4 is activated, that is, the piston rod of the hydraulic cylinder extends, thereby driving the guide plate 1 to extend to the roll gap of the rolling roll 8 to catch the strip. The strip passes over the guide plate 1 and is brought to the outlet side of the rolling device. When the coiler on the outlet side winds the strip and establishes tension, it opens the valve connected to the air source to provide negative pressure airflow to the airflow distribution pipe and the air amplifier. The negative pressure airflow enters the airflow enhancement chamber 3012 of the air amplifier through the through hole 3021 on the airflow distribution pipe 302 and the suction pipe 301, that is, the air inlet 3011 of the air amplifier, so that negative pressure is formed in the airflow enhancement chamber 3012, thereby generating more airflow above the guide plate 1 to help draw the oil stains on the surface of the strip into the air amplifier, thereby cleaning the rolling oil on the lower surface of the strip. Since the lower end of the air amplifier is open, the oil stains drawn into the air amplifier will fall into the collection box set on the ground through the lower end of the air amplifier, thereby collecting the rolling oil on the lower surface of the strip.

[0054] When the strip is rolled to the tail of the strip by the rolling device, the valve connected to the air source is closed, so that the air amplifier stops sucking and prevents the tail of the strip from being sucked onto the guide plate 1 when it passes through. After the tail of the strip has completely passed through, the piston rod of the hydraulic cylinder retracts, thereby driving the guide plate 1 to retract. At the same time, the limit block 6 is inserted into the limit hole 7 on the guide plate 1 and the guide rail seat 2 to lock the position of the guide plate 1 and prevent the guide plate 1 from extending when the operator performs other operations or changes the rolling roll 8.

[0055] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0056] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present invention without departing from the spirit of the present invention or the scope of disclosure shall fall within the protection scope of the present invention.

Claims

1. A guide plate device for cleaning oil stains on the surface of strip material, comprising a guide plate (1), characterized in that, It also includes a guide rail seat (2) and a suction assembly (3). The suction assembly (3) includes a suction tube (301), which is disposed on the guide plate (1) and connected to the air source. The upper end of the suction tube (301) penetrates the upper surface of the guide plate (1). The guide plate (1) is slidably mounted on the guide rail seat (2), and the guide plate (1) slides along the left and right directions of the guide rail seat (2).

2. The guide plate device for cleaning oil stains on the surface of strip material according to claim 1, characterized in that, The suction tube (301) is an air amplifier with a hollow interior. The side wall of the air amplifier is provided with an air inlet (3011) that communicates with the interior. The upper inner wall of the air amplifier is inverted cone-shaped and the lower inner wall is cone-shaped. The inner diameter of the upper end of the air amplifier is larger than the inner diameter of the lower end, so that an airflow enhancement cavity (3012) is formed inside the air amplifier. The air inlet (3011) of the air amplifier is connected to the air source, and the airflow enhancement cavity (3012) of the air amplifier penetrates the upper surface of the guide plate (1).

3. The guide plate device for cleaning oil stains on the surface of strip material according to claim 2, characterized in that, The suction assembly (3) further includes an airflow distribution pipe (302), one end of which is connected to an air source and the other end of which is closed. A through hole (3021) is provided on the pipe wall of the airflow distribution pipe (302), and the through hole (3021) is connected to the air inlet (3011) through an air pipe.

4. The guide plate device for cleaning oil stains on the surface of strip material according to claim 2, characterized in that, The upper end of the air amplifier is set perpendicular to the upper surface of the guide plate (1), and the upper end of the suction tube (301) is not higher than the upper surface of the guide plate (1).

5. The guide plate device for cleaning oil stains on the surface of strip material according to any one of claims 1 to 4, characterized in that, The guide plate device also includes a power component (4), which is used to drive the guide plate (1) to slide in the left and right directions along the guide rail seat (2).

6. The guide plate device for cleaning oil stains on the surface of strip according to any one of claims 1 to 4, characterized in that, The upper surface of the guide rail seat (2) is provided with a guide bar (201), and the guide plate (1) is provided with a through groove (101). The through groove (101) is engaged on the guide bar (201) and slides along the length direction of the guide bar (201).

7. The guide plate device for cleaning oil stains on the surface of strip material according to claim 6, characterized in that, The guide rail seat (2) is provided with limiting grooves (202) at both the front and rear ends. The guide plate (1) is respectively locked in the limiting grooves (202) at both the front and rear ends. The upper end surface of the guide rail seat (2) is flush with the upper end surface of the guide plate (1).

8. The guide plate device for cleaning oil stains on the surface of strip material according to claim 7, characterized in that, The limiting groove (202) is stepped, and the stepped openings of the limiting groove (202) at both ends of the guide rail seat (2) are arranged opposite to each other.

9. The guide plate device for cleaning oil stains on the surface of strip material according to claim 7, characterized in that, A pressure plate (5) is provided above the limiting groove (202), and the lower surface of the pressure plate (5) is flush with the upper end surface of the guide rail seat (2) and the upper end surface of the guide plate (1).

10. The guide plate device for cleaning oil stains on the surface of strip material according to claim 6, characterized in that, The guide rail seat (2) is provided with T-shaped limiting blocks (6) at its front and rear ends respectively. The limiting blocks (6) are fixedly connected to the guide rail seat (2) by a chain or rope. The guide plate (1) and the guide rail seat (2) are both provided with limiting holes (7). When the guide plate (1) is retracted, the limiting holes (7) on the guide plate (1) correspond vertically to the limiting holes (7) on the guide rail seat (2). The guide plate (1) and the guide rail seat (2) are fixed by inserting the limiting blocks (6) into the limiting holes (7).

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