Oil scraping device for outer wall of pipe of cold pilger mill

Abstract

The utility model relates to the technical field of cold pilger mills, in particular to an oil scraping device for the outer wall of a pipe of a cold pilger mill. The device comprises two supporting seats, wherein fixed frames are fixedly connected to the tops of the two supporting seats; two mounting rings are arranged between the two fixing frames, and the two mounting rings are connected through a plurality of fastening bolts; a steel pipe body is arranged in the two mounting rings, and an oil scraping assembly is arranged in the steel pipe body; a rubber sleeve makes contact with a steel pipe body, lubricating oil on the steel pipe body is scraped, after a period of time, the rubber sleeve is not tightly attached to the steel pipe body any more, the oil removing effect is poor, a motor needs to be started, an output shaft of the motor drives a first reciprocating lead screw to rotate, the first reciprocating lead screw drives an extrusion block to move, and the extrusion block is matched with the rubber sleeve; and the rubber sleeve is extruded and shrunk until the rubber sleeve is tightly attached to the steel pipe body again, the rubber sleeve is rapidly locked, and therefore the rapid oil scraping function is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of cold rolling mills, in particular to an oil scraping device for the outer wall of a tube of a cold rolling mill. Background Art

[0002] When making steel pipes, the steel pipes are cold rolled by utilizing the annular hole shape of the cold rolling mill. The cold rolling mill has good blanking performance. After the steel pipes are fed into the cold rolling mill for drawing, the surface of the steel pipes will also be stained with the oil in the cold rolling mill. In this way, the oil in the cold rolling mill will be brought out by the steel pipes. Therefore, an oil scraping device is required to scrape the oil on the surface of the steel pipes.

[0003] A Chinese patent with publication number CN206824399U discloses a steel pipe degreasing device for a cold rolling mill, comprising a horizontally arranged frame and a processing trough provided on the frame, wherein a plurality of conveying wheels for conveying steel pipes are provided in the processing trough, an oil collecting trough is provided below the conveying wheels, and an oil removing rack driven to move back and forth is provided on the frame, wherein the oil removing rack is provided with an oil scraping rubber sleeve; after the steel pipe is processed in the cold rolling mill, it enters the processing trough of the utility model and is located on the conveying wheel, and is driven to move forward by the conveying wheel, while the oil scraping rubber sleeve is attached to the outer wall of the steel pipe. The reciprocating movement of the oil removing rack causes the oil scraping rubber sleeve to move back and forth on the outer wall of the steel pipe, scraping the lubricating oil from the steel pipe, and then the annular shape and the oil draining trough structure are used to allow the lubricating oil to slide downward until it drips into the oil collecting trough through the oil discharge port. Compared with the prior art, the utility model achieves effective degreasing after the cold rolling of the steel pipe is completed, thereby improving processing efficiency.

[0004] At present, in the prior art, the lubricating oil is scraped off by an oil scraping rubber sleeve. Since there may be particulate impurities in the lubricating oil attached to the outside of the steel pipe, the particulate impurities may damage the oil scraping rubber sleeve when scraping off the particulate impurities, causing the oil scraping rubber sleeve to be unable to fit tightly against the steel pipe, resulting in poor degreasing effect.

[0005] Therefore, in order to solve the above problems, an oil scraping device for the outer wall of a tube of a cold rolling mill is proposed. Utility Model Content

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that particulate impurities may damage the oil scraping rubber sleeve, causing the oil scraping rubber sleeve to be unable to fit tightly against the steel pipe, resulting in poor oil removal effect.

[0007] In order to solve the above technical problems, the utility model provides an oil scraping device for the outer wall of a tube of a cold rolling mill.

[0008] In one embodiment of the present invention, it includes two support seats, and the tops of the two support seats are fixedly connected to a fixing frame; two mounting rings are provided between the two fixing frames, and the two mounting rings are connected by multiple fastening bolts; a steel pipe body is provided in the two mounting rings, and an oil scraper assembly is provided in the steel pipe body, and the oil scraper assembly includes two rubber sleeves that are slidably connected to the mounting rings through multiple sliders, and the two rubber sleeves form circular openings and fit tightly with the outer sides of the steel pipe bodies; a fixing plate is fixed to the inner wall of the fixing frame, and a motor is fixed to the fixing plate, and the output shaft of the motor is fixed to a first reciprocating screw, and one end of the first reciprocating screw is rotatably connected to the mounting ring through a bearing, and the first reciprocating screw is threadedly connected to an extrusion block, and the two extrusion blocks form circular openings and respectively cooperate with the rubber sleeves.

[0009] In one embodiment of the present invention, a mounting block is provided at one end of the mounting ring away from the motor, and two cleaning brushes are fixedly connected to the inner sidewalls of the mounting blocks, and the two cleaning brushes are staggered.

[0010] In one embodiment of the present invention, two springs are fixed in the mounting ring, one end of the two springs is fixed to a movable plate, three plugs are fixed to one side wall of the movable plate, the plugs are inserted through the mounting ring and the mounting block, and a pull block is fixed to the other side wall of the movable plate.

[0011] In one embodiment of the present invention, two second reciprocating screws are threadedly connected to the fixed frame away from the cleaning brush, one end of the second reciprocating screws is fixedly connected to a rotating block, and the other end of the second reciprocating screws is rotatably connected to a movable plate through a bearing, and a cleaning sponge is inserted into the inner side wall of the movable plate.

[0012] In one embodiment of the present invention, one end of the fixing frame is rotatably connected to four pulleys via pins, and the pulleys are in contact with the outer side wall of the steel pipe body.

[0013] In one embodiment of the present invention, a first drainage channel is provided at the bottom of one end of the mounting ring close to the cleaning brush, a second drainage channel is provided at the bottom of one end of the mounting ring close to the rubber sleeve, an oil collecting groove is fixedly connected to the bottom outer wall of the mounting ring, and a plug is inserted into the bottom of the oil collecting groove.

[0014] In one embodiment of the present invention, the inner side walls of the fixed frame are fixedly connected to the limiting columns, and both ends of the movable plate are slidably connected to the limiting columns.

[0015] In one embodiment of the present invention, two guide rods are fixedly connected between the fixing plate and the mounting ring, and the extrusion blocks are slidably connected to the guide rods.

[0016] The above technical solution of the utility model has the following advantages compared with the prior art:

[0017] The utility model discloses an oil scraping device for the outer wall of a tube of a cold rolling mill, which cooperates with an extrusion block and a rubber sleeve. When working, the rubber sleeve contacts the steel tube body to scrape off the lubricating oil on the steel tube body. After a period of time, the rubber sleeve is no longer tightly fitted to the steel tube body, and the oil removal effect is poor. The motor needs to be turned on, and the output shaft of the motor drives the first reciprocating screw to rotate, and the first reciprocating screw drives the extrusion block to move. The extrusion block cooperates with the rubber sleeve to squeeze and shrink the rubber sleeve until the rubber sleeve is tightly fitted to the steel tube body again, thereby realizing rapid locking of the rubber sleeve and completing the function of rapid oil scraping.

[0018] The utility model discloses an oil scraping device for the outer wall of a tube of a cold rolling mill, which is provided with a movable plate and a cleaning sponge. The cleaning sponge is provided for wiping the lubricating oil on the surface of the steel tube body. After a period of time, the cleaning sponge becomes wet and needs to be rotated by rotating the rotary block. The rotary block drives the second reciprocating screw to rotate, and the second reciprocating screw drives the movable plate to move in the direction of the steel tube body. The movable plate and the cleaning sponge move in the direction of the steel tube body and are squeezed on the outside of the steel tube body, thereby squeezing out the lubricating oil on the cleaning sponge, thereby achieving the effect of removing the lubricating oil on the cleaning sponge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is a three-dimensional diagram of the rubber sleeve in the utility model;

[0023] Figure 4 It is a three-dimensional diagram of the installation block in the utility model;

[0024] Figure 5 It is a three-dimensional diagram of the mounting ring in the utility model;

[0025] Figure 6 It is a three-dimensional diagram of the movable plate in the utility model;

[0026] Explanation of the reference numerals in the accompanying drawings in the specification: 1. Support seat; 2. Fixed frame; 3. Steel pipe body; 4. Pulley; 5. Mounting ring; 6. Slider; 7. Rubber sleeve; 8. Extrusion block; 9. First reciprocating screw; 10. Fixed plate; 11. Guide rod; 12. Motor; 13. Cleaning brush; 14. Insert column; 15. Mounting block; 16. Spring; 17. Movable plate; 18. Pull block; 19. Rotary block; 20. Second reciprocating screw; 21. Movable plate; 22. Limit column; 23. Cleaning sponge; 24. Plug; 25. Oil collecting tank; 26. First drainage channel; 27. Second drainage channel; 28. Fastening bolt. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0028] Reference Figure 1 - Figure 6 As shown, the utility model is an oil scraping device for the outer wall of the tube of a cold rolling mill, comprising two support seats 1, the tops of the two support seats 1 are fixedly connected to a fixing frame 2; two mounting rings 5 are provided between the two fixing frames 2, and the two mounting rings 5 are connected by a plurality of fastening bolts 28; a steel tube body 3 is provided in the two mounting rings 5, and an oil scraping assembly is provided in the steel tube body 3, and the oil scraping assembly includes two rubber sleeves 7 respectively slidably connected to the mounting ring 5 through a plurality of sliders 6, and the two rubber sleeves 7 form a circular opening and fit tightly with the outer side of the steel tube body 3; a fixing plate 10 is fixed to the inner wall of the fixing frame 2, and a motor 12 is fixed to the fixing plate 10, and the output shaft of the motor 12 is fixed to a first reciprocating screw 9, one end of the first reciprocating screw 9 is rotatably connected to the mounting ring 5 through a bearing, and the first reciprocating screw 9 is threadedly connected to an extrusion block 8, and the two extrusion blocks 8 form a circular opening and respectively cooperate with the rubber sleeve 7.

[0029] Particulate impurities may damage the oil scraping rubber sleeve 7, causing the oil scraping rubber sleeve 7 to be unable to fit tightly with the steel pipe, resulting in poor degreasing effect; during operation, the rubber sleeve 7 contacts the steel pipe body 3 to scrape off the lubricating oil on the steel pipe body 3. After a period of time, the rubber sleeve 7 is no longer tightly fitted with the steel pipe body 3, and the degreasing effect is poor. It is necessary to turn on the motor 12, and the output shaft of the motor 12 drives the first reciprocating screw 9 to rotate, and the first reciprocating screw 9 drives the extrusion block 8 to move. The extrusion block 8 cooperates with the rubber sleeve 7 to squeeze and shrink the rubber sleeve 7 until the rubber sleeve 7 fits tightly with the steel pipe body 3 again, thereby achieving rapid locking of the rubber sleeve 7, thereby completing the function of rapid oil scraping.

[0030] Further, such as Figure 4 and Figure 5As shown, a mounting block 15 is provided at one end of the mounting ring 5 away from the motor 12 , and two cleaning brushes 13 are fixedly connected to the inner sidewalls of the mounting block 15 , and the two cleaning brushes 13 are staggered.

[0031] During operation, some granular impurities are mixed in the lubricating oil, and the granular impurities may come into contact with the rubber sleeve 7 and easily cause damage to the rubber sleeve 7. By setting a cleaning brush 13, the granular impurities and most of the lubricating oil on the surface of the steel pipe body 3 are cleaned, achieving the effect of rapid cleaning and scraping.

[0032] Further, such as Figure 4 As shown, two springs 16 are fixed in the mounting ring 5, and one end of the two springs 16 is fixed to a movable plate 17. Three plug posts 14 are fixed to one side wall of the movable plate 17. The plug posts 14 are inserted through the mounting ring 5 and the mounting block 15, and a pull block 18 is fixed to the other side wall of the movable plate 17.

[0033] During operation, when the cleaning brush 13 and the mounting block 15 need to be installed on the mounting ring 5, the movable plate 17 is pulled outward by the pulling block 18, and the movable plate 17 drives the plug post 14 to be pulled outward, the spring 16 is stretched, and then the mounting block 15 is inserted into the mounting ring 5, and the pulling block 18 is released. Under the action of the spring 16, the movable plate 17 moves toward the mounting ring 5, and the movable plate 17 drives the plug post 14 to be inserted into the mounting block 15 and the mounting ring 5, thereby fixing the mounting block 15 in the mounting ring 5.

[0034] Further, such as Figure 6 As shown, two second reciprocating screws 20 are threadedly connected to the fixed frame 2 away from the cleaning brush 13, one end of the second reciprocating screws 20 is fixedly connected to a rotary block 19, and the other end of the second reciprocating screws 20 is rotatably connected to a movable plate 21 through a bearing, and a cleaning sponge 23 is inserted into the inner side wall of the movable plate 21.

[0035] During operation, the cleaning sponge 23 is provided to wipe the lubricating oil on the surface of the steel pipe body 3. After a period of time, the cleaning sponge 23 becomes wet, and it is necessary to rotate the rotary block 19 to drive the second reciprocating screw 20 to rotate, and move toward the steel pipe body 3 through the second reciprocating screw 20. The second reciprocating screw 20 drives the movable plate 21 to move toward the steel pipe body 3. The movable plate 21 carries the cleaning sponge 23 to move toward the steel pipe body 3 and squeezes it on the outside of the steel pipe body 3, thereby squeezing out the lubricating oil on the cleaning sponge 23, thereby removing the lubricating oil on the cleaning sponge 23.

[0036] Further, such as Figure 1 As shown, one end of the fixing frame 2 is rotatably connected to four pulleys 4 via pins, and the pulleys 4 are in contact with the outer side wall of the steel pipe body 3.

[0037] During operation, by setting the pulley 4, when the steel pipe body 3 moves, the steel pipe body 3 moves inside the pulley 4, reducing the damage of the fixed frame 2 to the steel pipe body 3 and preventing the lubricating oil from flowing out of the fixed frame 2.

[0038] Further, such as Figure 2 As shown, a first drainage channel 26 is provided at the bottom of one end of the mounting ring 5 close to the cleaning brush 13, a second drainage channel 27 is provided at the bottom of one end of the mounting ring 5 close to the rubber sleeve 7, an oil collecting groove 25 is fixedly connected to the outer side wall of the bottom of the mounting ring 5, and a plug 24 is inserted into the bottom of the oil collecting groove 25.

[0039] During operation, the first drainage channel 26 and the second drainage channel 27 are provided to facilitate the flow of the lubricating oil in the mounting ring 5 to the oil collecting tank 25 , and the lubricating oil is collected by the oil collecting tank 25 . After a period of time, the lubricating oil is discharged by opening the plug 24 .

[0040] Further, such as Figure 6 As shown, the inner side walls of the fixed frame 2 are fixedly connected to the limiting pillars 22 , and both ends of the movable plate 21 are slidably connected to the limiting pillars 22 .

[0041] During operation, when the movable plate 21 is in motion, the movable plate 21 slides on the limiting posts 22 , and the limiting posts 22 limit the movable plate 21 in a vertical direction.

[0042] Further, such as Figure 3 As shown, two guide rods 11 are fixedly connected between the fixing plate 10 and the mounting ring 5 , and the extrusion blocks 8 are slidably connected to the guide rods 11 .

[0043] During operation, the extrusion block 8 slides on the guide rod 11 during movement, and the guide rod 11 limits the extrusion block 8 in the horizontal direction.

[0044] Working principle: during operation, the rubber sleeve 7 contacts with the steel pipe body 3 to scrape off the lubricating oil on the steel pipe body 3. After a period of time, the rubber sleeve 7 is no longer tightly fitted with the steel pipe body 3, and the degreasing effect is not good. It is necessary to turn on the motor 12, and the output shaft of the motor 12 drives the first reciprocating screw 9 to rotate, and the first reciprocating screw 9 drives the extrusion block 8 to move. The extrusion block 8 cooperates with the rubber sleeve 7 to squeeze and shrink the rubber sleeve 7 until the rubber sleeve 7 is tightly fitted with the steel pipe body 3 again, thereby quickly locking the rubber sleeve 7, thereby completing the function of quickly scraping oil; some particulate impurities are mixed in the lubricating oil, and the contact of the particulate impurities with the rubber sleeve 7 can easily cause the rubber sleeve 7 to be damaged. By setting a cleaning brush 13, the particulate impurities and most of the lubricating oil on the surface of the steel pipe body 3 are cleaned, thereby achieving the function of quick cleaning and scraping; when the cleaning brush 13 is installed, the movable plate 17 is pulled outward by the pull block 18, and the movable plate 17 drives the plug post 14 to be pulled outward, the spring 16 is stretched, and then the mounting block 15 is inserted into the mounting ring 5, and the pulling block 18 is released. Under the action of the spring 16, the movable plate 17 moves toward the mounting ring 5, and the movable plate 17 drives the plug post 14 to be inserted into the mounting block 15 and the mounting ring 5, thereby fixing the mounting block 15 in the mounting ring 5; the cleaning sponge 23 is set to wipe the lubricating oil on the surface of the steel pipe body 3. After a period of time, the cleaning sponge 23 is wetted and needs to be rotated by rotating the rotary block 19. The rotary block 19 drives the second reciprocating screw 20 to rotate, and the second reciprocating screw 20 moves toward the direction of the steel pipe body 3. The second reciprocating screw 20 drives the movable plate 21 to move toward the direction of the steel pipe body 3. The movable plate 21 carries the cleaning sponge 23 to move toward the direction of the steel pipe body 3 and squeezes it on the outside of the steel pipe body 3, thereby squeezing out the lubricating oil on the cleaning sponge 23, thereby removing the lubricating oil on the cleaning sponge 23.

[0045] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An oil scraping device for the outer wall of a tube of a cold rolling mill, comprising two support seats (1), the tops of the two support seats (1) are fixedly connected to a fixing frame (2); two mounting rings (5) are provided between the two fixing frames (2), and the two mounting rings (5) are connected by a plurality of fastening bolts (28); a steel tube body (3) is provided in the two mounting rings (5), and an oil scraping assembly is provided in the steel tube body (3), characterized in that: The oil scraping assembly comprises two rubber sleeves (7) which are respectively slidably connected to the mounting ring (5) through a plurality of sliders (6), the two rubber sleeves (7) forming a circular opening and closely fitting with the outer side of the steel pipe body (3); a fixing plate (10) is fixedly connected to the inner wall of the fixing frame (2), a motor (12) is fixedly connected to the fixing plate (10), an output shaft of the motor (12) is fixedly connected to a first reciprocating screw (9), one end of the first reciprocating screw (9) is rotatably connected to the mounting ring (5) through a bearing, an extrusion block (8) is threadedly connected to the first reciprocating screw (9), the two extrusion blocks (8) forming a circular opening and respectively fitting with the rubber sleeves (7).

2. The oil scraping device for the outer wall of a tube of a cold rolling mill according to claim 1, characterized in that: A mounting block (15) is provided at one end of the mounting ring (5) away from the motor (12), and two cleaning brushes (13) are fixedly connected to the inner sidewall of the mounting block (15), and the two cleaning brushes (13) are staggered.

3. The oil scraping device for the outer wall of a tube of a cold rolling mill according to claim 2, characterized in that: Two springs (16) are fixedly connected in the mounting ring (5), one end of each of the two springs (16) is fixedly connected to a movable plate (17), one side wall of the movable plate (17) is fixedly connected to three plug posts (14), the plug posts (14) are inserted through the mounting ring (5) and the mounting block (15), and the other side wall of the movable plate (17) is fixedly connected to a pull block (18).

4. The oil scraping device for the outer wall of a tube of a cold rolling mill according to claim 3, characterized in that: Two second reciprocating screws (20) are threadedly connected to the fixed frame (2) away from the cleaning brush (13), one end of each of the second reciprocating screws (20) is fixedly connected to a rotary block (19), and the other end of each of the second reciprocating screws (20) is rotatably connected to a movable plate (21) via a bearing, and a cleaning sponge (23) is inserted into the inner side wall of each of the movable plates (21).

5. The oil scraping device for the outer wall of a tube of a cold rolling mill according to claim 4, characterized in that: One end of the fixed frame (2) is rotatably connected to four pulleys (4) via a pin shaft, and the pulleys (4) are in contact with the outer side wall of the steel pipe body (3).

6. The oil scraping device for the outer wall of a tube of a cold rolling mill according to claim 5, characterized in that: A first drainage channel (26) is provided at the bottom of one end of the mounting ring (5) close to the cleaning brush (13), a second drainage channel (27) is provided at the bottom of one end of the mounting ring (5) close to the rubber sleeve (7), an oil collecting groove (25) is fixedly connected to the outer side wall of the bottom of the mounting ring (5), and a plug (24) is inserted into the bottom of the oil collecting groove (25).

7. The oil scraping device for the outer wall of a tube of a cold rolling mill according to claim 6, characterized in that: The inner side walls of the fixed frame (2) are fixedly connected to the limiting columns (22), and both ends of the movable plate (21) are slidably connected to the limiting columns (22).

8. The oil scraping device for the outer wall of a tube of a cold rolling mill according to claim 7, characterized in that: Two guide rods (11) are fixedly connected between the fixing plate (10) and the mounting ring (5), and the extrusion blocks (8) are slidably connected to the guide rods (11).

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