A cleaning device for foreign matter remaining on a surface of an entry side plate of a cold rolling mill

Abstract

The utility model discloses a cold rolling mill entrance side plate face residual foreign matter cleaning device, including the support plate between the installation of coiled material and rolling mill, the support plate is located the downside of rolling mill entrance side strip, the upper surface of support plate near coiled material one end is installed with the guide roller, the upper surface of support plate near rolling mill one side is installed with the thickness gauge support, and support plate near the upside rotation of thickness gauge support part is provided with the air curtain board, the bottom of air curtain board is provided with the air outlet. The device adopts the air curtain board structure of rotatable, can prevent rolling oil reverse flow to the downside of thickness gauge to guarantee the accurate measurement of thickness gauge, can also clean the surface foreign matter such as aluminium powder, dust of the three circle plate face residual of incoming material coiled material, thereby improves the surface cleanliness and quality of finished strip, and the whole device mode switching is simple, and the adaptability is extremely strong, need not to increase the redundant equipment, and the occupied space is small, and the maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of aluminum processing technology, specifically to a device for cleaning residual foreign matter on the inlet side plate of a cold rolling mill. Background Technology

[0002] Cold rolling is a crucial process in the processing of metal strips such as aluminum and steel, and its product quality control is of paramount importance. During the cold rolling mill production process, the surface of the incoming coil at the inlet side often contains foreign matter such as aluminum powder, dust, and oil. If these residual foreign matter are not effectively removed, they will be pressed into the surface of the strip during the rolling process, forming defects such as indentations and pits, which seriously damage the surface quality of the finished product and lead to a decrease in the yield rate.

[0003] In existing technology, a thickness gauge is typically installed on the inlet side of a cold rolling mill to monitor strip thickness in real time, serving as a core device for ensuring rolling accuracy and product quality. However, in actual production, it has been found that rolling oil used during high-speed rolling is prone to splashing back from the roll gap area or flowing back with the strip to below the thickness gauge on the inlet side, causing significant fluctuations and distortions in the measured values. Inaccurate thickness gauge data is directly fed back to the mill control system, causing roll gap and rolling force adjustment disturbances, and in severe cases, even strip breakage.

[0004] Currently, the cleaning of residual foreign matter on the plate surface and the control of rolling oil backflow typically rely on two separate equipment systems: plate surface cleaning often uses wipers, vacuum cleaners, or fixed blowing devices, while preventing rolling oil contamination of thickness gauges requires the addition of physical baffles or frequent manual wiping. This separate solution has obvious drawbacks: firstly, it is functionally limited, with each device only solving one problem, lacking integration; secondly, the two sets of equipment are installed in parallel within the limited space of the production line, occupying a large amount of space, making the equipment layout crowded, and inconvenient for maintenance.

[0005] Therefore, this application provides a device for cleaning residual foreign matter on the inlet side plate of a cold rolling mill to solve the above-mentioned problems. Utility Model Content

[0006] The technical problem this invention aims to solve is to overcome existing defects and provide a cleaning device for residual foreign matter on the inlet side plate of a cold rolling mill. This device employs a rotatable air curtain structure, which not only prevents rolling oil from flowing back to the underside of the thickness gauge, thus ensuring accurate measurement, but also cleans residual aluminum powder, dust, and other surface foreign matter from the outer three rings of the incoming coil, thereby improving the surface cleanliness and quality of the finished strip. The entire device is easy to switch between modes, highly adaptable, requires no additional equipment, occupies little space, and is easy to maintain, effectively solving the problems in the background technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for cleaning residual foreign matter on the inlet side plate of a cold rolling mill, comprising a support plate installed between the coil and the rolling mill, the support plate being located on the lower side of the strip at the inlet side of the rolling mill, a guide roller being installed on the upper surface of the support plate near the end of the coil, a thickness gauge bracket being installed on the upper surface of the support plate near the rolling mill, and an air curtain plate being rotatably arranged on the upper side of the support plate near the thickness gauge bracket, with an air outlet at the bottom of the air curtain plate.

[0008] In a preferred embodiment of this invention, the width of the support plate is greater than the width of the strip.

[0009] As a preferred technical solution of this utility model, the upper surface of the support plate is provided with a guide groove that is high at both ends and low in the middle, and a drain pipe is provided at the bottom of the support plate corresponding to the lowest point of the guide groove, and a valve is provided on the drain pipe.

[0010] As a preferred technical solution of this utility model, the upper surface of the support plate and the air curtain plate are provided with two symmetrically arranged fixed seats. One end of the air curtain plate is provided with a rotating shaft that is rotatably connected to the fixed seat. The fixed seat corresponding to the rotating shaft is provided with a servo motor that drives the rotating shaft to rotate. The output shaft of the servo motor is connected to the rotating shaft through a coupling.

[0011] As a preferred technical solution of this utility model, the other end of the air curtain plate is rotatably provided with a connecting pipe that passes through the fixed seat for an external high-pressure fan. The side of the fixed seat corresponding to the connecting pipe is provided with a clamping plate, and the vertical part of the connecting pipe is clamped to the clamping plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a cleaning device for residual foreign matter on the inlet side plate of a cold rolling mill. It adopts a rotatable air curtain structure, which can prevent rolling oil from flowing back to the underside of the thickness gauge, thus ensuring the accuracy of the thickness gauge measurement. It can also clean residual aluminum powder, dust and other surface foreign matter on the outer three rings of the incoming coil, thereby improving the surface cleanliness and quality of the finished strip. The entire device is easy to switch modes, highly adaptable, requires no additional equipment, occupies little space, and is easy to maintain. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 This is a front view schematic diagram of the present utility model; Figure 4 This is a cross-sectional structural diagram of the wind curtain panel in this utility model.

[0014] In the diagram: 1 Support plate, 2 Guide roller, 3 Thickness gauge bracket, 4 Fixing seat, 5 Air curtain plate, 51 Air outlet, 6 Rotating shaft, 61 Servo motor, 7 Connecting pipe, 8 Card plate, 9 Sewage pipe, 91 Valve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a device for cleaning residual foreign matter on the inlet side plate of a cold rolling mill, including a support plate 1 installed between the coil and the rolling mill. The support plate 1 is located on the lower side of the strip at the inlet side of the rolling mill. A guide roller 2 is installed on the upper surface of the support plate 1 near the end of the coil. A thickness gauge bracket 3 is installed on the upper surface of the support plate 1 near the rolling mill. An air curtain plate 5 is rotatably arranged on the upper side of the support plate 1 near the thickness gauge bracket 3. An air outlet 51 is opened at the bottom of the air curtain plate 5. During the strip rolling process, the air curtain plate 5 blows the air curtain out of the air outlet 51 towards the lower side of the thickness gauge bracket 3, thereby blowing the rolling oil on the lower side of the thickness gauge bracket 3 towards the rolling mill roll system to improve the measurement accuracy of the thickness gauge.

[0017] Furthermore, the width of the support plate 1 is greater than the width of the strip, so that the rolling oil and impurities blown off the strip can fall onto the support plate 1.

[0018] Furthermore, the upper surface of the support plate 1 is provided with a guide groove that is high at both ends and low in the middle, and the bottom of the support plate 1 corresponding to the lowest point of the guide groove is provided with a drain pipe 9. The drain pipe 9 is provided with a valve 91, which can be used to flush the support plate 1 with water and discharge sewage through the drain pipe 9.

[0019] Furthermore, the upper surface of the support plate 1 and the air curtain plate 5 is provided with two symmetrically arranged fixed seats 4. One end of the air curtain plate 5 is provided with a rotating shaft 6 that is rotatably connected to the fixed seat 4. The fixed seat 4 corresponding to the rotating shaft 6 is provided with a servo motor 61 that drives the rotating shaft 6 to rotate. The output shaft of the servo motor 61 is connected to the rotating shaft 6 through a coupling. When the aluminum alloy strip is rolled at low speed, the servo motor 61 works and drives the air curtain plate 5 to rotate through the rotating shaft 6, and makes the air curtain blown out of the air outlet 51 tilt towards the guide roller 2. At this time, the main function of the air curtain is to clean the aluminum powder, dust and other foreign matter remaining on the outer three rings of the aluminum alloy strip.

[0020] Furthermore, the other end of the air curtain plate 5 is rotatably provided with a connecting pipe 7 that passes through the fixed base 4 for an external high-pressure fan. The side of the fixed base 4 corresponding to the connecting pipe 7 is provided with a clamping plate 8. The vertical part of the connecting pipe 7 is clamped to the clamping plate 8. The external high-pressure fan delivers high-pressure air into the air curtain plate 5 through the connecting pipe 7 and discharges it through the air outlet 51 to form an air curtain.

[0021] The servo motor 61 used in this utility model is a commonly used electronic component in the prior art. Its working method and circuit structure are well-known technologies and will not be described in detail here.

[0022] When using: During the strip rolling process, the air curtain plate 5 blows the air curtain out of the air outlet 51 towards the lower side of the thickness gauge support 3, thereby blowing the rolling oil on the lower side of the thickness gauge support 3 towards the direction of the rolling mill roll system, improving the measurement accuracy of the thickness gauge. When the aluminum alloy sheet and strip are threaded at low speed, the servo motor 61 works. The servo motor 61 drives the air curtain plate 5 to rotate through the rotating shaft 6, and makes the air curtain blown out of the air outlet 51 tilt towards the guide roller 2. At this time, the main function of the air curtain is to clean the aluminum powder, dust and other foreign matter remaining on the outer three rings of the aluminum alloy sheet and strip. The support plate 1 with the guide groove can collect the rolling oil and dust dripping from the strip and discharge them centrally through the drain pipe 9.

[0023] This utility model adopts a rotatable air curtain plate 5 structure, which can prevent rolling oil from flowing back to the bottom of the thickness gauge, thereby ensuring the accuracy of the thickness gauge measurement; it can also clean the aluminum powder, dust and other surface foreign matter remaining on the outer three rings of the incoming coil, thereby improving the surface cleanliness and quality of the finished strip. The entire device is easy to switch modes, highly adaptable, requires no additional equipment, occupies little space, and is easy to maintain.

[0024] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for cleaning residual foreign matter on the inlet side plate of a cold rolling mill, comprising a support plate (1) installed between the coil and the rolling mill, characterized in that: The support plate (1) is located on the lower side of the strip at the mill inlet. A guide roller (2) is installed on the upper surface of the support plate (1) near the end of the coil. A thickness gauge bracket (3) is installed on the upper surface of the support plate (1) near the mill. An air curtain plate (5) is rotatably installed on the upper side of the support plate (1) near the thickness gauge bracket (3). An air outlet (51) is opened at the bottom of the air curtain plate (5).

2. The device for cleaning residual foreign matter on the inlet side plate of a cold rolling mill according to claim 1, characterized in that: The width of the support plate (1) is greater than the width of the strip.

3. The cold rolling mill inlet side plate residual foreign matter cleaning device according to claim 1, characterized in that: The upper surface of the support plate (1) is provided with a guide groove that is high at both ends and low in the middle, and a drain pipe (9) is provided at the bottom of the support plate (1) corresponding to the lowest point of the guide groove, and a valve (91) is provided on the drain pipe (9).

4. The device for cleaning residual foreign matter on the inlet side plate of a cold rolling mill according to claim 1, characterized in that: The upper surface of the support plate (1) and the air curtain plate (5) is provided with two symmetrically arranged fixed seats (4). One end of the air curtain plate (5) is provided with a rotating shaft (6) that is rotatably connected to the fixed seat (4). The fixed seat (4) corresponding to the rotating shaft (6) is provided with a servo motor (61) that drives the rotating shaft (6) to rotate. The output shaft of the servo motor (61) is connected to the rotating shaft (6) through a coupling.

5. The foreign matter cleaning device for the inlet side plate of a cold rolling mill according to claim 4, characterized in that: The other end of the air curtain plate (5) is rotatably provided with a connecting pipe (7) that passes through the fixed seat (4) for an external high-pressure fan. The side of the fixed seat (4) corresponding to the connecting pipe (7) is provided with a clamping plate (8), and the vertical part of the connecting pipe (7) is clamped to the clamping plate (8).

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