Rolling mill with lubrication device

Abstract

The present invention relates to the field of steel rolling equipment, and in particular to a rolling mill with a lubrication device, which includes a machine body, an upper roller and a lower roller arranged on the machine body, an oil-carrying tank with an open top provided on one side of the machine body relative to the raw material feed, through holes for the raw material to pass through are provided on the two opposite side walls of the oil-carrying tank, and a plugging component for plugging the gap between the through hole and the side wall of the raw material is provided on the oil-carrying tank, and one through hole corresponds to one plugging component; a cavity with an open top is provided in the side wall relative to the through hole where the oil-carrying tank is located, the through hole is communicated with the cavity and the communicating positions are arranged circumferentially, the plugging component includes an elastic membrane arranged at the position where the through hole and the cavity are communicated, and a filler arranged in the cavity, and the plugging component also includes a material pressing part for applying a certain pressure to the filler so that the filler pushes the elastic membrane to deform, thereby filling the gap between the through hole and the side wall of the raw material. The present application has the advantage of improving the lubrication effect on the raw material.

Description

Technical Field

[0001] The invention relates to the field of steel rolling equipment, in particular to a rolling mill with a lubrication device. Background Art

[0002] The pressure processing process of changing the shape of steel ingots and billets between rotating rollers is called steel rolling. Steel rolling can improve the internal quality of steel. It can be divided into hot rolling and cold rolling according to the rolling temperature.

[0003] The rolling mill in the related technology includes an upper roller and a lower roller rotatably arranged on a machine body, the distance between the upper roller and the lower roller can be adjusted, and a spray device for lubricating the raw material is also arranged on the machine body so that the raw material can pass more smoothly between the upper roller and the lower roller.

[0004] However, since the cross-section of the raw material may be irregular, when the lubricant is sprayed, the lubricant may not be contaminated to the entire outer wall of the raw material, resulting in certain difficulties for the raw material to pass between the upper roller and the lower roller. Summary of the invention

[0005] In order to improve the lubrication effect on the raw material, the present application provides a rolling mill with a lubrication device.

[0006] The present application provides a rolling mill with a lubrication device adopts the following technical solution:

[0007] A rolling mill with a lubrication device comprises a machine body, an upper roller and a lower roller arranged on the machine body, wherein the side of the machine body opposite to the raw material feeding side is provided with an oil-carrying tank with an open top, and the opposite side walls of the oil-carrying tank are correspondingly provided with through holes for the raw material to pass through, and the oil-carrying tank is provided with a blocking component for blocking the gap between the through hole and the side wall of the raw material, and one through hole corresponds to one blocking component.

[0008] By adopting the above technical solution, the raw material passes through the oil-carrying pool through two through holes, and the sealing component can seal the gap between the raw material and the side wall of the through hole, so that the liquid level of the lubricating oil in the oil-carrying pool is higher than the through hole, and the part of the raw material located in the oil-carrying pool is completely immersed in the lubricating oil, thereby improving the lubrication effect on the raw material.

[0009] Optionally, a cavity with an open top is opened in the side wall of the oil-carrying pool relative to the through hole, and the through hole is connected to the cavity and the connected positions are arranged circumferentially. The sealing component includes an elastic membrane arranged at the position where the through hole and the cavity are connected, and a filler arranged in the cavity. The sealing component also includes a pressing part for applying a certain pressure to the filler so that the filler pushes the elastic membrane to deform, thereby filling the gap between the through hole and the side wall of the raw material.

[0010] By adopting the above technical solution, the pressing part applies a certain pressure to the filler, and the filler pushes the elastic membrane to deform until the elastic membrane circumferentially wraps the outer wall of the raw material, thereby achieving the sealing of the gap between the raw material and the through hole.

[0011] Optionally, the pressing part includes a top plate mounted on the top of the cavity, a threaded rotating rod threadedly connected to the top plate, a pressing plate is rotatably provided at the bottom of the threaded rotating rod, and the pressing plate is tightly attached to the side wall of the cavity.

[0012] By adopting the above technical solution, a worker rotates the threaded rotating rod, and the threaded rotating rod pushes the pressing plate to move downward, thereby squeezing the filler through the pressing plate.

[0013] Optionally, a magnetic block is provided on the pressing plate at a position relative to the threaded rotating rod, the magnetic block is attracted to the threaded rotating rod, and a plurality of air holes are provided between the upper and lower surfaces of the pressing plate.

[0014] By adopting the above technical solution, when a worker rotates the threaded rotating rod in the opposite direction and the threaded rotating rod moves upward, the threaded rotating rod can drive the pressure plate to move downward through the magnetic block, thereby ensuring that the elastic film can completely restore its deformation.

[0015] Optionally, an oil receiving pool with an open top is provided on the machine body at a position below the lower roller, the oil receiving pool extends to below the oil loading pool, and a delivery pump is connected between the oil receiving pool and the oil loading pool.

[0016] By adopting the above technical solution, the lubricating oil dripping from the oil-carrying pool, the upper roller and the lower roller falls into the oil receiving pool, and the delivery pump draws the lubricating oil in the oil receiving pool into the oil-carrying pool, thereby realizing the recycling of the lubricating oil.

[0017] Optionally, a liquid level sensor is provided on the oil loading tank, the liquid level sensor is higher than the through hole, and the liquid level sensor is electrically connected to the delivery pump through a control system.

[0018] By adopting the above technical solution, when the liquid level of the lubricating oil in the oil-carrying pool is lower than the highest point of the through hole, the delivery pump starts to work to ensure that the lubricating oil in the oil-carrying pool can submerge the raw material.

[0019] Optionally, the top of the oil receiving pool is paved and stacked with multiple layers of tarpaulin.

[0020] By adopting the above technical solution, the oil flotation cloth plays a transitional role in the recovery of dripping lubricating oil, reducing the possibility of loss caused by splashing of lubricating oil.

[0021] Optionally, a roller is provided on a rotating frame in the oil loading pool, the circumferential outer wall of the roller is in close contact with the side wall of the raw material, a cam is coaxially provided on the roller, a back plate is provided in the oil loading pool, a flexible hose is provided on the side of the back plate opposite to the circumferential outer wall of the cam, the bottom end of the flexible hose extends into the oil receiving pool, the top of the flexible hose is connected to an elastic bag, and a pressure relief valve is provided on the elastic bag.

[0022] By adopting the above technical solution, the cam can be driven to rotate by the roller when the raw materials are fed. During the rotation of the cam, the flexible hose can be squeezed, thereby squeezing the lubricating oil in the flexible hose into the elastic bag. The elastic bag expands, and when the pressure in the elastic bag reaches the threshold set by the pressure relief valve, the pressure relief valve automatically opens to discharge the lubricating oil to relieve the pressure, thereby pumping the lubricating oil in the oil receiving pool into the oil carrying pool, which can reduce the working time of the delivery pump and save electricity.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The raw material passes through the oil-carrying pool through two through holes, and the plugging assembly can plug the gap between the raw material and the side wall of the through hole, so that the liquid level of the lubricating oil in the oil-carrying pool is higher than the through hole, and the part of the raw material located in the oil-carrying pool is completely immersed in the lubricating oil, thereby improving the lubrication effect on the raw material;

[0025] 2. When the raw materials are fed, the roller drives the cam to rotate. During the rotation of the cam, the flexible hose can be squeezed, thereby squeezing the lubricating oil in the flexible hose into the elastic bag. The elastic bag expands, and when the pressure in the elastic bag reaches the threshold set by the pressure relief valve, the pressure relief valve automatically opens to discharge the lubricating oil to relieve the pressure, thereby pumping the lubricating oil in the oil receiving pool into the oil carrying pool, which can reduce the working time of the delivery pump and save electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0027] Figure 2 It is an exploded view of the pressing part in the embodiment of the present application.

[0028] Figure 3 It is a cross-sectional view of the threaded rotating rod, the pressure plate, the top plate, and the filler in the embodiment of the present application.

[0029] Figure 4 It is a schematic diagram of the positional relationship among the elastic bag, the flexible hose and the cam in the embodiment of the present application.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. Machine body; 2. Upper roller; 3. Lower roller; 4. Oil-carrying tank; 401. Through hole; 402. Cavity; 5. Elastic membrane; 6. Filler; 7. Pressing part; 71. Top plate; 72. Threaded rotating rod; 73. Pressing plate; 731. Air hole; 74. Air-permeable cloth; 8. Magnetic block; 9. Oil collecting tank; 10. Delivery pump; 11. Liquid level sensor; 12. Oil-transferring cloth; 13. Roller; 14. Cam; 15. Abutment plate; 16. Flexible hose; 17. Elastic bag; 18. Pressure relief valve. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] An embodiment of the present application discloses a rolling mill with a lubrication device.

[0033] Reference Figure 1 The rolling mill with a lubricating device comprises a machine body 1, an upper roll 2 and a lower roll 3 rotatably arranged on the machine body 1, and the upper roll 2 is located above the lower roll 3. The raw material passes between the upper roll 2 and the lower roll 3, thereby achieving steel rolling.

[0034] Reference Figure 1 and Figure 2 An oil-carrying tank 4 with an open top is provided on the side of the machine body 1 opposite to the raw material feeding direction. Through holes 401 are correspondingly opened on both sides of the oil-carrying tank 4 opposite to the raw material feeding direction. The through holes 401 are used for the raw materials to pass through. A sealing component for sealing the gap between the through holes 401 and the side wall of the raw material is provided on the oil-carrying tank 4, one corresponding to one sealing component.

[0035] The oil tank 4 is filled with lubricating oil and the level of the lubricating oil is higher than the through hole 401. When the raw material passes through the oil tank 4, the part of the raw material in the oil tank 4 is immersed in the lubricating oil, thereby improving the lubricating effect on the raw material.

[0036] The plugging component seals the gap between the raw material and the through hole 401 , thereby ensuring that the height of the lubricating oil level in the oil-carrying pool 4 is higher than the through hole 401 .

[0037] Reference Figure 2 and Figure 3 A cavity 402 with an open top is formed in the side wall of the oil-carrying pool 4 opposite to the through hole 401. The through hole 401 is communicated with the cavity 402, and the communicating positions are distributed circumferentially.

[0038] The sealing component includes an elastic mold bonded to the position where the through hole 401 and the cavity 402 communicate, and a filler 6 filled in the cavity 402. The sealing component also includes a pressing part 7 for applying a certain pressure to the filler 6 so that the filler 6 pushes the elastic membrane 5 to deform, thereby filling the gap between the through hole 401 and the side wall of the raw material.

[0039] The pressing part 7 includes a top plate 71 bolted to the top of the cavity 402 , a threaded rotating rod 72 threadedly connected to the top plate 71 , and a pressing plate 73 is rotatably provided at the bottom of the threaded rotating rod 72 . The pressing plate 73 is in close contact with the vertical side walls of the cavity 402 .

[0040] Reference Figure 2 and Figure 3 When steel rolling begins, the worker first passes the raw material through the two through holes 401 of the oil tank 4, and then rotates the threaded rotating rod 72. The threaded rotating rod 72 pushes the pressing plate 73 to move downward to squeeze the filler 6. The filler 6 pushes the elastic membrane 5 to deform until the elastic membrane 5 is close to the side wall of the raw material.

[0041] At this time, the worker adds enough lubricating oil to the oil tank 4 until the level of the lubricating oil is higher than the through hole 401. When the raw material starts to be fed between the roller and the lower roller 3, the worker rotates the threaded rotating rod 72 again, thereby further deforming the elastic membrane 5 through the filler 6, thereby compensating for the gap between the raw material and the elastic membrane 5 when it moves.

[0042] Reference Figure 2 and Figure 3 A magnetic block 8 is embedded on the pressure plate 73 at a position relative to the threaded rotating rod 72. The magnetic block 8 is attracted to the threaded rotating rod 72. A plurality of air holes 731 are provided between the upper and lower surfaces of the pressure plate 73. A breathable cloth 74 is bonded to the lower surface of the pressure plate 73. The breathable cloth 74 can intercept the filler 6 and reduce the possibility of the filler 6 passing through the air holes 731 to the top of the pressure plate 73.

[0043] When the worker rotates the threaded rod 72 in the opposite direction to move the threaded rod 72 upward, the threaded rod 72 drives the pressing plate 73 to move upward through the magnetic block 8, thereby ensuring that the elastic membrane 5 can completely restore its deformation, thereby facilitating the next raw material to pass through the through hole 401.

[0044] Reference Figure 1 and Figure 2 The elastic membrane 5 cooperates with the filler 6 , and although it can block the gap between the raw material and the through hole 401 to a certain extent, it cannot completely prevent the lubricating oil from leaking out of the through hole 401 .

[0045] To this end, an oil receiving pool 9 with an open top is provided on the machine body 1 at a position below the lower roller 3 . The oil receiving pool 9 extends to below the oil loading pool 4 . A delivery pump 10 is connected between the oil receiving pool 9 and the oil loading pool 4 .

[0046] The lubricating oil dripping from the oil-carrying pool 4, the upper roller 2 and the lower roller 3 falls into the oil receiving pool 9, and the delivery pump 10 can deliver the lubricating oil in the oil receiving pool 9 to the oil-carrying pool 4, thereby recycling the lubricating oil and achieving an environmentally friendly effect.

[0047] Reference Figure 1 and Figure 2 A plurality of layers of oilcloth 12 are laid on the top of the oil receiving pool 9, and the layers of oilcloth 12 are bonded to each other, and one of the oilcloth 12 is bonded to the oil receiving pool 9 by Velcro.

[0048] The oil transfer cloth 12 dripping from the oil loading pool 4, the upper roller 2 and the lower roller 3 first drips onto the oil transfer cloth 12. When the oil loading amount of the oil transfer cloth 12 reaches saturation, the lubricating oil in the oil transfer cloth 12 drips into the oil receiving pool 9.

[0049] The oil ferry 12 plays a role of transitional bearing for the recovery of the dripping lubricating oil, thereby reducing the possibility of loss caused by splashing when the lubricating oil drips.

[0050] Reference Figure 1 and Figure 2 A liquid level sensor 11 is threadedly connected to the oil loading pool 4. The liquid level sensor 11 is higher than the through hole 401. The liquid level sensor 11 is electrically connected to the delivery pump 10 through the control system.

[0051] When the liquid level of the lubricating oil in the oil loading tank 4 is lower than the liquid level sensor 11, the liquid level sensor 11 starts the delivery pump 10 through the control system, so that the delivery pump 10 draws the lubricating oil in the oil receiving tank 9 into the oil loading tank 4, ensuring that the lubricating oil in the oil loading tank 4 can submerge the raw material.

[0052] Reference Figure 1 and Figure 4 A roller 13 is rotatably mounted in the oil loading pool 4, and the outer circumferential wall of the roller 13 is in close contact with the raw material, and a cam 14 is coaxially mounted on the roller 13. A stop plate 15 is bolted in the oil loading pool 4, and a flexible hose 16 is mounted on the side of the stop plate 15 opposite to the outer circumferential side of the cam 14, and the bottom end of the flexible hose 16 extends into the oil receiving pool 9, and the top end of the flexible hose 16 is connected to an elastic bag 17, and a pressure relief valve 18 is arranged on the elastic bag 17.

[0053] Reference Figure 1 and Figure 4 When the raw material is fed, the roller 13 can drive the cam 14 to rotate. During the rotation of the cam 14, the flexible hose 16 can be squeezed, so that the lubricating oil in the flexible hose 16 is squeezed into the elastic bag 17.

[0054] The elastic bag 17 expands, and when the pressure in the elastic bag 17 reaches the threshold value set by the pressure relief valve 18, the pressure relief valve 18 automatically opens to discharge the lubricating oil to achieve pressure relief. During the raw material feeding process, the above process is repeated continuously, so that the lubricating oil in the oil receiving pool 9 can be actively extracted into the oil carrying pool 4.

[0055] Through the above arrangement, the cam 14, the flexible hose 16, the elastic bag 17 and the like cooperate to replenish the oil tank 4, and the delivery pump 10 only needs to work for a short time when the oil supply is insufficient or when steel rolling just starts, thereby saving electric energy.

[0056] The implementation principle of a rolling mill with a lubrication device in the embodiment of the present application is:

[0057] The worker first passes one end of the raw material through the two through holes 401 of the oil loading pool 4, and then rotates the two threaded rotating rods 72 in turn. The threaded rotating rod 72 moves downward, and the filler 6 in the cavity 402 is squeezed through the pressure plate 73. The filler 6 pushes the elastic membrane 5 to deform until the elastic membrane 5 circumferentially includes the outer wall of the raw material. At this time, the delivery pump 10 is started, and the delivery pump 10 draws the lubricating oil in the oil receiving pool 9 into the oil loading pool 4 until the liquid level of the lubricating oil in the oil loading pool 4 is higher than the through hole 401, that is, the lubricating oil submerges the raw material, and then the delivery pump 10 is closed.

[0058] During the process of feeding the raw materials, the raw materials drive the cam 14 to rotate through the roller 13. During the rotation of the cam 14, the flexible hose 16 can be squeezed, thereby squeezing the lubricating oil in the flexible hose 16 into the elastic bag 17. The elastic bag 17 expands, and when the pressure in the elastic bag 17 reaches the threshold set by the pressure relief valve 18, the pressure relief valve 18 automatically opens to discharge the lubricating oil to achieve pressure relief. The above process is repeated continuously, and the lubricating oil in the oil receiving pool 9 can be continuously pumped into the oil carrying pool 4.

[0059] After the raw material has completely passed through the oil-carrying pool 4, the worker rotates the threaded rotating rod 72 in the reverse direction, so that the elastic membrane 5 can completely restore its deformation.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rolling mill with a lubrication device, comprising a machine body (1), an upper rolling roller (2) and a lower rolling roller (3) arranged on the machine body (1), characterized in that: An oil-carrying pool (4) with an open top is provided on the side of the machine body (1) opposite to the raw material feeding, through holes (401) for the raw materials to pass through are correspondingly provided on the two opposite side walls of the oil-carrying pool (4), and a blocking component for blocking the gap between the through hole (401) and the side wall of the raw material is provided on the oil-carrying pool (4), and one through hole (401) corresponds to one blocking component; The oil-carrying pool (4) has a cavity (402) with an open top in the side wall opposite to the through hole (401), the through hole (401) and the cavity (402) are in communication and the communicating positions are arranged circumferentially, the plugging component comprises an elastic membrane (5) arranged at the communicating position between the through hole (401) and the cavity (402), and a filler (6) arranged in the cavity (402), and the plugging component also comprises a material pressing part (7) for applying a certain pressure to the filler (6) so that the filler (6) pushes the elastic membrane (5) to deform, thereby filling the gap between the through hole (401) and the side wall of the raw material; The material pressing part (7) comprises a top plate (71) mounted on the top of the cavity (402), a threaded rotating rod (72) threadedly connected to the top plate (71), a pressing plate (73) rotatably arranged at the bottom of the threaded rotating rod (72), and the pressing plate (73) is in close contact with the side wall of the cavity (402); A magnetic block (8) is provided on the pressing plate (73) at a position relative to the threaded rotating rod (72), and the magnetic block (8) is attracted to the threaded rotating rod (72). A plurality of air holes (731) are provided between the upper and lower surfaces of the pressing plate (73), and an air-permeable cloth (74) is provided on the lower surface of the pressing plate (73).

2. The rolling mill with a lubrication device according to claim 1, characterized in that: An oil receiving pool (9) with an open top is provided on the machine body (1) at a position below the lower rolling roller (3); the oil receiving pool (9) extends to below the oil loading pool (4); and a delivery pump (10) is connected between the oil receiving pool (9) and the oil loading pool (4).

3. The rolling mill with a lubrication device according to claim 2, characterized in that: The oil loading pool (4) is provided with a liquid level sensor (11), the liquid level sensor (11) is higher than the through hole (401), and the liquid level sensor (11) is electrically connected to the delivery pump (10) through a control system.

4. The rolling mill with a lubrication device according to claim 2, characterized in that: The top of the oil receiving pool (9) is paved and stacked with multiple layers of oil-slip cloth (12).

5. The rolling mill with a lubrication device according to claim 2, characterized in that: A roller (13) is rotatably mounted in the oil loading pool (4), the outer circumferential wall of the roller (13) is in close contact with the side wall of the raw material, a cam (14) is coaxially mounted on the roller (13), a stop plate (15) is mounted in the oil loading pool (4), a flexible rubber hose (16) is mounted on the side of the stop plate (15) opposite to the outer circumferential wall of the cam (14), the bottom end of the flexible rubber hose (16) extends into the oil receiving pool (9), the top of the flexible rubber hose (16) is connected to an elastic bag (17), and a pressure relief valve (18) is mounted on the elastic bag (17).

Images