Four-roller hydraulic finishing mill for copper strip rolling

Abstract

The invention relates to the field of rolling mill equipment, in particular to a copper strip rolling four-roller hydraulic finishing mill which comprises a rack, a fixing frame, a mounting frame, a lower working roller, an upper working roller and a lubricating assembly, the fixing frame is fixedly connected to the rack, the mounting frame is arranged above the fixing frame, the mounting frame is slidably connected to the rack, the sliding direction of the mounting frame is vertical, and the lower working roller is arranged above the mounting frame. The lower working roller is rotationally connected to the fixing frame around the axis of the lower working roller, the upper working roller is rotationally connected to the mounting frame around the axis of the upper working roller, and the rotating axis of the upper working roller is parallel to the rotating axis of the lower working roller; the spray head is fixedly connected to the inner wall of the nozzle. Emulsion sprayed by the spray head is smeared on the outer walls of the steel belt and the working roller, the friction coefficient between the steel belt and the working roller is reduced, heat generation is reduced, part of heat of the working roller is taken away through flowing of the emulsion, and the production quality of the steel belt is improved.

Description

Technical Field

[0001] The present application relates to the field of rolling mill equipment, and in particular to a four-roller hydraulic finishing mill for copper strip rolling. Background Art

[0002] At present, in the non-ferrous metal processing industry, especially in the rolling process of copper strip, multi-roll mills are usually used to achieve material thinning and flattening. With the growing market demand for high-precision and high-quality copper strips, the rolling accuracy and efficiency of traditional rolling mills have been unable to meet the needs of modern industry.

[0003] When rolling steel strips, a large amount of heat is released due to the friction between the rollers and the steel strips. The large amount of heat causes the rollers to expand thermally, which will make the thickness of the rolled steel strips uneven, thereby reducing the qualified rate of the steel strips. Summary of the invention

[0004] In order to improve the production quality of steel strips, the present application provides a four-roller hydraulic finishing mill for copper strip rolling.

[0005] The present application provides a copper strip rolling four-roller hydraulic finishing mill adopts the following technical solution: A four-roller hydraulic finishing mill for copper strip rolling comprises a frame, a fixed frame, a mounting frame, a lower working roll, an upper working roll and a lubrication assembly, wherein the fixed frame is fixedly connected to the frame, the mounting frame is arranged above the fixed frame, the mounting frame is slidably connected to the frame, the sliding direction of the mounting frame is vertical, the lower working roll is rotatably connected to the fixed frame around its own axis, the upper working roll is rotatably connected to the mounting frame around its own axis, the rotation axis of the upper working roll is parallel to the rotation axis of the lower working roll, the space between the upper working roll and the lower working roll is used for steel strip to pass through, the lubrication assembly comprises a nozzle and a nozzle, the nozzle is fixedly connected to the mounting frame, the nozzle is provided with a nozzle on the outer wall of the upper working roll facing the upper working roll, and the nozzle is fixedly connected to the inner wall of the nozzle.

[0006] By adopting the above technical solution, the steel strip passes between the upper working roll and the lower working roll, and the upper working roll and the lower working roll jointly roll the steel strip. The emulsion sprayed from the nozzle is applied to the outer wall of the steel strip and the working roll, thereby reducing the friction coefficient between the steel strip and the working roll, reducing the rolling force, improving the smoothness of rolling, and reducing the generation of heat. At the same time, the flow of the emulsion takes away part of the heat of the working roll, reducing the probability of thermal expansion of the working roll, and improving the production quality of the steel strip.

[0007] Preferably, the lubrication assembly further comprises a control valve, wherein the control valve is connected to the inner wall of the nozzle, and the control valve is used to control the opening and closing and flow rate of the nozzle. The control valve is configured as a ball valve, and the valve stem of the control valve extends out of the nozzle.

[0008] By adopting the above technical solution, the control valve rotates to control the opening and closing and flow rate of the nozzle, which makes it easy to control the amount of sprayed emulsion according to the rolling speed, reduce heat, and improve the production quality of the steel strip.

[0009] Preferably, the lubrication assembly also includes a gear, a guide block and a rack, the gear is coaxially fixedly connected to the valve stem of the control valve, the mounting frame is provided with a guide port, the guide block is slidably connected to the inner wall of the guide port, the sliding direction of the guide block is parallel to the axis of the upper working roll, the rack is fixedly connected to the guide block, the length direction of the rack is parallel to the sliding direction of the guide block, and the rack is pinched with the gear.

[0010] By adopting the above technical solution, the sliding of the guide block is controlled so that the rack slides, the gear rotates, the control valve rotates to control the opening, and the nozzle flow is adjusted, which is convenient for users to operate and control.

[0011] Preferably, it also includes a control component, which includes a fixed ring, a rotating ring, a first hinge rod, a second hinge rod, a limit block and a spring, wherein both ends of the upper working roller are coaxially fixedly connected to the upper working column, and the upper working column is rotatably connected to the mounting frame around its own axis, the fixed ring is coaxially fixedly connected to the outer wall of the upper working column, the rotating ring is arranged between the fixed ring and the guide block, and the rotating ring is coaxially rotatably connected to the outer wall of the upper working column, one end of the first hinge rod is hinged to the outer wall of the fixed ring, the other end of the first hinge rod is hinged to one end of the second hinge rod, and the other end of the second hinge rod is hinged to the rotating ring, the hinge axis of the first hinge rod is tangent to the outer wall of the fixed ring, the outer wall of the rotating ring is coaxially provided with a limit ring groove, the limit ring groove is arranged on the side of the second hinge rod away from the first hinge rod, the limit block is fixedly connected to the rack, the limit block is slidably embedded in the limit ring groove, and the two ends of the spring are respectively fixedly connected to the fixed ring and the rotating ring.

[0012] By adopting the above technical solution, centrifugal force is generated when the upper working column rotates, and the first hinged rod and the second hinged rod expand outward under the action of centrifugal force, the rotating ring moves, the limit block moves, and the rack moves to drive the control valve to rotate. When the upper working column stops rotating, the spring resets the rotating ring and adjusts the nozzle flow, which is convenient for user operation and control.

[0013] Preferably, the control component also includes a memory alloy and a hook, the rotating ring is provided with a through-hole, the through-hole is provided on the inner circumference of the limiting ring groove, the axis of the through-hole is parallel to the axis of the rotating ring, the through-hole passes through the rotating ring, one end of the memory alloy is fixedly connected to the end of the fixed ring facing the rotating ring, the other end of the memory alloy is fixedly connected to the hook after passing through the through-hole, and the hook is used to abut the end of the rotating ring away from the fixed ring.

[0014] By adopting the above technical solution, when the temperature of the upper working column is too high, the memory alloy deforms and shrinks, the hook pulls the rotating ring to overcome the spring force and move, the control valve rotates, the nozzle flow is increased, the heat dissipation of the upper working roller is facilitated, and the production quality of the steel strip is improved.

[0015] Preferably, two lubrication assemblies are provided, one of the nozzles is fixedly connected to the mounting frame, and the other nozzle is fixedly connected to the fixing frame, and the nozzle sprays toward between the upper working roll and the lower working roll.

[0016] By adopting the above technical solution, the lubrication component lubricates both sides of the steel strip, reduces the generation of heat, and improves the production quality of the steel strip.

[0017] Preferably, it also includes a collection box and a drain pipe, the upper end of the collection box is provided with a collection trough, the frame is fixedly connected to the bottom of the collection trough, the outer wall of the collection box is provided with a drain outlet, the drain outlet is connected to the collection trough, and the outer wall of the drain pipe is fixedly connected to the inner wall of the drain outlet.

[0018] By adopting the above technical solution, the collection tank collects the emulsion and discharges it into the drain pipe through the drain outlet, which makes it easy to reuse the emulsion after treatment and reduces resource waste.

[0019] Preferably, it also includes a platform and a cleaning component, wherein the platform is fixedly connected to the outer wall of the collection box, and the cleaning component includes an air outlet pipe, which is fixedly connected to the upper end of the platform through a support frame, and the air outlet pipe is provided with an air outlet facing the outer wall of the steel belt, and an air inlet is provided at one end of the air outlet pipe.

[0020] By adopting the above technical solution, the air outlet duct dries the emulsion on the steel belt, making it easy to clean the emulsion.

[0021] Preferably, the cleaning assembly also includes a bracket, a transmission shaft, an impeller, a first bevel gear, a connecting shaft, a second bevel gear and a fan, the bracket is fixedly connected to the inner wall of the drain pipe, the transmission shaft is rotatably connected to the bracket around its own axis, the rotation axis of the transmission shaft is horizontal, the impeller and the first bevel gear are both coaxially fixedly connected to the transmission shaft, the connecting shaft is rotatably connected to the drain pipe around its own axis, the rotation axis of the connecting shaft is vertical, the second bevel gear is coaxially fixedly connected to the lower end of the connecting shaft, the first bevel gear is meshed with the second bevel gear, the upper end of the connecting shaft extends into the air inlet, the fan is arranged in the air inlet, and the fan is coaxially fixedly connected to the connecting shaft.

[0022] By adopting the above technical solution, the emulsion drives the impeller to rotate through the drain pipe, the transmission shaft, the first bevel gear, the second bevel gear, the connecting shaft, the fan, the air inlet, and the air outlet to clean the surface of the steel belt. The flow rate of the emulsion controls the speed of the impeller, thereby controlling the speed of the fan, thereby realizing automatic control of the air output.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The steel strip passes between the upper working roll and the lower working roll, and the upper working roll and the lower working roll roll the steel strip together. The emulsion sprayed from the nozzle is applied to the outer wall of the steel strip and the working roll, which reduces the friction coefficient between the steel strip and the working roll, reduces the rolling force, improves the smoothness of rolling, and reduces the heat generation. At the same time, the emulsion flow takes away part of the heat of the working roll, reduces the probability of thermal expansion of the working roll, and improves the production quality of the steel strip; 2. Centrifugal force is generated when the upper working column rotates. The first hinged rod and the second hinged rod expand outward under the action of centrifugal force, the rotating ring moves, the limit block moves, and the rack moves to drive the control valve to rotate. When the upper working column stops rotating, the spring resets the rotating ring to adjust the nozzle flow, which is convenient for users to operate and control; 3. When the temperature of the upper working column is too high, the memory alloy deforms and shrinks, the hook pulls the rotating ring to overcome the spring force and move, the control valve rotates, the nozzle flow is increased, the heat dissipation of the upper working roller is facilitated, and the production quality of the steel strip is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is a schematic diagram of the overall structure of a four-roller hydraulic finishing mill for copper strip rolling.

[0025] Figure 2 It is a schematic diagram of the overall structure of the frame, rolling components, lubrication components and control components.

[0026] Figure 3 It is a schematic diagram of the overall structure of a four-roller hydraulic finishing mill for copper strip rolling, mainly used to display guide blocks, auxiliary components and cleaning components.

[0027] Figure 4 It is a schematic diagram of the overall structure of the control component.

[0028] Figure 5 It is a schematic diagram of the overall structure of the cleaning component.

[0029] Explanation of the reference numerals: 1. collecting box; 11. collecting trough; 12. drain outlet; 2. frame; 21. supporting column; 22. top plate; 23. feed port; 24. discharge port; 25. first sliding port; 26. second sliding port; 3. rolling assembly; 31. fixed frame; 311. fixed trough; 32. mounting frame; 321. mounting trough; 322. guide port; 33. hydraulic cylinder; 34. lower supporting roller; 341. lower supporting column; 36. lower working roller; 361. lower working column; 37. upper supporting roller; 371. upper supporting column; 38. upper working roller; 381. upper working column; 39. driving motor; 4. lubrication assembly; 41. nozzle; 411. nozzle; 42. nozzle; 43. control valve; 44. gear; 45. guide block; 46. rack; 5. control assembly; 51. Fixed ring; 52, rotating ring; 521, limiting ring groove; 522, through-mouth; 53, first hinge rod; 54, second hinge rod; 55, limiting block; 56, memory alloy; 57, hook; 58, spring; 6, auxiliary component; 61, drain pipe; 62, storage box; 63, platform; 64, extrusion piece; 641, placement rack; 6411, placement mouth; 642, cylinder; 643, movable rack; 6431, movable groove; 644, upper extrusion roller; 645, lower extrusion roller; 7, cleaning component; 71, air outlet; 711, air outlet; 712, air inlet; 72, bracket; 73, transmission shaft; 74, impeller; 75, first bevel gear; 76, connecting shaft; 77, second bevel gear; 78, fan; 791, support rod; 7911, fixing mouth; 792, bearing. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] The present application embodiment discloses a copper strip rolling four-roll hydraulic finishing mill. Figure 1 A four-roller hydraulic finishing mill for copper strip rolling includes a collecting box 1, a frame 2, a rolling component 3, a lubrication component 4, a control component 5, an auxiliary component 6 and a cleaning component 7.

[0032] The collecting box 1 is fixedly connected to the ground, and a collecting trough 11 is provided at the upper end of the collecting box 1. The frame 2 includes four supporting columns 21 and a top plate 22. The top plate 22 is rectangular in shape. The lower ends of the four supporting columns 21 are fixedly connected to the bottom of the collecting trough 11, and the upper ends of the four supporting columns 21 are respectively fixedly connected to the four corners of the top plate 22. The length direction of the supporting columns 21 is vertical. The supporting columns 21, the top plate 22 and the bottom of the collecting trough 11 are combined to form a feed port 23, a discharge port 24, a first sliding port 25 and a second sliding port 26. The feed port 23 and the discharge port 24 are arranged opposite to each other, and the first sliding port 25 and the second sliding port 26 are arranged opposite to each other. The steel strip enters from the feed port 23 and moves out from the discharge port 24.

[0033] Reference Figure 2 The rolling assembly 3 includes a fixed frame 31, a mounting frame 32, a hydraulic cylinder 33, a lower support roll 34, a lower working roll 36, an upper support roll 37, an upper working roll 38 and a driving motor 39.

[0034] The two ends of the fixed frame 31 are respectively fixedly connected to the inner walls of the first sliding opening 25 and the second sliding opening 26. The mounting frame 32 is arranged above the fixed frame 31. The two ends of the mounting frame 32 are respectively slidably connected to the inner walls of the first sliding opening 25 and the second sliding opening 26. The sliding direction of the mounting frame 32 is vertical. The cylinder body of the hydraulic cylinder 33 is fixedly connected to the lower end of the top plate 22, and the piston rod of the hydraulic cylinder 33 is fixedly connected to the upper end of the mounting frame 32.

[0035] Reference Figure 2 A fixing groove 311 is provided at the upper end of the fixing frame 31, and the fixing groove 311 penetrates the fixing frame 31 along the moving direction of the steel strip. Both ends of the lower supporting roller 34 are coaxially fixedly connected with lower supporting columns 341, and the lower supporting columns 341 are rotatably connected to the groove wall of the fixing groove 311 around their own axes. The lower working roller 36 is arranged above the lower supporting roller 34, and both ends of the lower working roller 36 are coaxially fixedly connected with lower working columns 361, and the lower working columns 361 are rotatably connected to the groove wall of the fixing groove 311 around their own axes. The outer wall of the lower supporting roller 34 and the outer wall of the lower working roller 36 abut against each other, and the rotation axis of the lower supporting roller 34 is parallel to the rotation axis of the lower working roller 36.

[0036] A mounting groove 321 is provided at the lower end of the mounting frame 32, and the mounting groove 321 penetrates the mounting frame 32 along the moving direction of the steel strip. Both ends of the upper supporting roller 37 are coaxially fixedly connected with upper supporting columns 371, and the upper supporting column 371 is rotatably connected to the groove wall of the mounting groove 321 around its own axis. The upper working roller 38 is arranged below the upper supporting roller 37, and both ends of the upper working roller 38 are coaxially fixedly connected with upper working columns 381, and the upper working column 381 is rotatably connected to the groove wall of the mounting groove 321 around its own axis. The outer wall of the upper supporting roller 37 and the outer wall of the upper working roller 38 abut against each other, the rotation axis of the upper supporting roller 37 is parallel to the rotation axis of the upper working roller 38, and the rotation axis of the upper working roller 38 is parallel to the rotation axis of the lower working roller 36, and the space between the upper working roller 38 and the lower working roller 36 is used for allowing the steel strip to pass.

[0037] Reference Figure 2 The two driving motors 39 drive the upper supporting roller 37 and the lower supporting roller 34 to rotate respectively. The outer walls of the lower supporting column 341 and the lower working column 361 are fixedly connected with gears (not shown in the figure) and are driven by gear meshing. The outer walls of the upper supporting column 371 and the upper working column 381 are fixedly connected with gears (not shown in the figure) and are driven by gear meshing.

[0038] Reference Figure 2 and Figure 3 There are two lubrication assemblies 4, and the lubrication assemblies 4 are arranged on one side of the upper working roll 38 close to the feed port 23. The lubrication assemblies 4 include a nozzle 41, a nozzle 42, a control valve 43, a gear 44, a guide block 45 and a rack 46.

[0039] Reference Figure 2 The two ends of one nozzle 41 are respectively fixedly connected to the two opposite groove walls of the mounting groove 321, and the two ends of the other nozzle 41 are respectively fixedly connected to the two opposite groove walls of the fixed groove 311. One end of the nozzle 41 passes through the mounting frame 32 or the fixed frame 31 and is connected to the liquid supply box (not shown in the figure). The liquid supply box is used to provide emulsion. The nozzle 41 is provided with a nozzle 411 on the outer wall facing the upper working roll 38. There are multiple nozzles 411, and the multiple nozzles 411 are evenly spaced along the length direction of the nozzle 41. There are multiple nozzles 42, and the nozzles 42 are arranged one by one with the nozzles 411. The nozzle 42 is fixedly connected to the inner wall of the nozzle 411, and the nozzle 42 sprays between the upper working roll 38 and the lower working roll 36.

[0040] Reference Figure 2 and Figure 3 , the control valve 43 is close to one end of the nozzle 41, the control valve 43 is connected to the inner wall of the nozzle 41, the control valve 43 is used to control the opening and closing and flow of the nozzle 41, the control valve 43 is set as a ball valve, the valve stem of the control valve 43 extends out of the nozzle 41, and the rotation axis of the valve stem of the control valve 43 is horizontal and perpendicular to the rotation axis of the upper working roll 38. The gear 44 is coaxially fixedly connected to the valve stem of the control valve 43, the end of the mounting frame 32 close to the control valve 43 is provided with a guide port 322, the guide port 322 is connected to the mounting groove 321, the guide block 45 is slidably connected to the inner wall of the guide port 322, the sliding direction of the guide block 45 is parallel to the axis of the upper working roll 38, the rack 46 is fixedly connected to the guide block 45, the length direction of the rack 46 is parallel to the sliding direction of the guide block 45, and the rack 46 is kneaded at the upper end of the gear 44.

[0041] Reference Figure 2 and Figure 4 The control assembly 5 is arranged between the upper working roller 38 and the guide block 45, and the control assembly 5 includes a fixed ring 51, a rotating ring 52, a first hinge rod 53, a second hinge rod 54, a limit block 55, a memory alloy 56, a hook 57 and a spring 58.

[0042] The fixed ring 51 is coaxially fixedly connected to the outer wall of the upper working column 381, the rotating ring 52 is arranged between the fixed ring 51 and the guide block 45, the rotating ring 52 is coaxially rotatably connected to the outer wall of the upper working column 381, one end of the first hinged rod 53 is hinged to the outer wall of the fixed ring 51, the other end of the first hinged rod 53 is hinged to one end of the second hinged rod 54, the other end of the second hinged rod 54 is hinged to the rotating ring 52, the hinge axis of the first hinged rod 53 is tangent to the outer wall of the fixed ring 51, a plurality of first hinged rods 53 are provided, and the plurality of first hinged rods 53 are evenly spaced around the axis of the fixed ring 51, a plurality of second hinged rods 54 are provided, and the second hinged rods 54 are arranged one-to-one with the first hinged rods 53.

[0043] Reference Figure 2 and Figure 4 The outer wall of the rotating ring 52 is coaxially provided with a limiting ring groove 521, which is provided on the side of the second hinge rod 54 away from the first hinge rod 53. The limiting block 55 is fixedly connected to the upper end of the rack 46, and the limiting block 55 is slidably embedded in the limiting ring groove 521. The rotating ring 52 is provided with a through hole 522, which is provided on the inner periphery of the limiting ring groove 521. The axis of the through hole 522 is parallel to the axis of the rotating ring 52, and the through hole 522 penetrates the rotating ring 52. One end of the memory alloy 56 is fixedly connected to the end of the fixed ring 51 facing the rotating ring 52, and the other end of the memory alloy 56 passes through the through hole 522 and is fixedly connected to the hook 57. The hook 57 is used to abut against the end of the rotating ring 52 away from the fixed ring 51. The fixed ring 51 is made of heat conductive material. The spring 58 is sleeved on the outer circumference of the upper working column 381 . The spring 58 is disposed between the fixed ring 51 and the rotating ring 52 . Two ends of the spring 58 are fixedly connected to the fixed ring 51 and the rotating ring 52 , respectively.

[0044] Reference Figure 3 The auxiliary component 6 includes a drain pipe 61, a storage box 62, a platform 63 and an extrusion piece 64. The outer wall of the lower end of the collection box 1 is provided with a drain port 12, which is connected to the collection tank 11. The drain port 12 is arranged near the discharge port 24. The outer wall of one end of the drain pipe 61 is fixedly connected to the inner wall of the drain port 12, and the other end of the drain pipe 61 is connected to the storage box 62. The platform 63 is fixedly connected to the outer wall of the collection box 1. There are two platforms 63, and both platforms 63 are arranged below the alignment of the steel strip. There are four extrusion pieces 64, and the four extrusion pieces 64 are evenly distributed in two groups and are respectively arranged on both sides of the collection box 1. The two extrusion pieces 64 are arranged at intervals along the length direction of the platform 63.

[0045] Reference Figure 1The extrusion member 64 includes a placement frame 641, a cylinder 642, a movable frame 643, an upper extrusion roller 644 and a lower extrusion roller 645. The placement frame 641 is fixedly connected to the upper end of the platform 63. The placement frame 641 is provided with a placement opening 6411. The placement opening 6411 penetrates the placement frame 641 along the length direction of the platform 63. The cylinder body of the cylinder 642 is fixedly connected to the upper end of the placement frame 641. The piston rod of the cylinder 642 extends into the placement opening 6411 and is fixedly connected to the movable frame 643. The movable frame 643 is slidably connected to The inner wall of the placement opening 6411, the sliding direction of the movable frame 643 is vertical, the lower end of the movable frame 643 is provided with a movable groove 6431, the upper extrusion roller 644 rotates around its own axis and is connected to the groove wall of the movable groove 6431, the rotation axis of the upper extrusion roller 644 is parallel to the rotation axis of the upper working roller 38, the lower extrusion roller 645 is arranged below the movable frame 643, the rotation axis of the lower extrusion roller 645 is parallel to the rotation axis of the upper extrusion roller 644, and the space between the upper extrusion roller 644 and the lower extrusion roller 645 is used for steel strip to pass through.

[0046] Reference Figure 5 The cleaning assembly 7 includes an air outlet pipe 71, a bracket 72, a transmission shaft 73, an impeller 74, a first bevel gear 75, a connecting shaft 76, a second bevel gear 77, a fan 78, a support rod 791 and a bearing 792.

[0047] Reference Figure 3 and Figure 5 The air outlet pipe 71 is arranged on the side of the discharge port 24 away from the feed port 23, the air outlet pipe 71 is arranged between the two extrusion members 64, the air outlet pipe 71 is fixedly connected to the upper end of the platform 63 through a support frame (not shown in the figure), the length direction of the air outlet pipe 71 is parallel to the axial direction of the upper extrusion roller 644, the air outlet pipe 71 is provided with an air outlet 711 on the outer wall facing the collection box 1, and a plurality of air outlets 711 are provided, and the plurality of air outlets 711 are evenly spaced along the length direction of the air outlet pipe 71, the air outlet 711 is used for blowing the surface of the steel strip to clean the emulsion on the surface of the steel strip, and an air inlet 712 is provided at one end of the air outlet pipe 71 facing the drain pipe 61, and the opening of the air inlet 712 faces downward.

[0048] The bracket 72 is fixedly connected to the inner wall of the drain pipe 61, the transmission shaft 73 is connected to the bracket 72 by rotation around its own axis, the rotation axis of the transmission shaft 73 is parallel to the length direction of the drain pipe 61, the rotation axis of the transmission shaft 73 is horizontal, the impeller 74 and the first bevel gear 75 are coaxially fixedly connected to the two ends of the transmission shaft 73, the impeller 74 is arranged on the side of the first bevel gear 75 close to the drain outlet 12, the connecting shaft 76 is connected to the drain pipe 61 by rotation around its own axis, the rotation axis of the connecting shaft 76 is vertical, the second bevel gear 77 is coaxially fixedly connected to the lower end of the connecting shaft 76, the first bevel gear 75 is meshed with the second bevel gear 77, the upper end of the connecting shaft 76 extends into the air inlet 712, the fan 78 is arranged in the air inlet 712, and the fan 78 is coaxially fixedly connected to the upper end of the connecting shaft 76. One end of the support rod 791 is fixedly connected to the outer wall of the storage box 62 facing the connecting shaft 76, and the other end of the support rod 791 is provided with a fixing port 7911. The outer wall of the bearing 792 is coaxially fixedly connected to the inner wall of the fixing port 7911, and the inner wall of the bearing 792 is fixedly connected to the outer wall of the connecting shaft 76.

[0049] The implementation principle of a four-roller hydraulic finishing mill for copper strip rolling in the embodiment of the present application is as follows: when the rotation speed of the upper working roll 38 increases, the centrifugal force increases, the sliding of the rotating ring 52 drives the sliding of the rack 46, and the rotation of the control valve 43 increases the flow rate of the nozzle 41, which is convenient for lubrication and heat dissipation. When the temperature of the upper working roll 38 is too high, the deformation of the memory alloy 56 pulls the rotating ring 52 to move, so that the control valve 43 rotates, and the flow rate of the nozzle 41 increases, which is convenient for reducing friction and heat dissipation. The emulsion is discharged from the drain port 12, and the emulsion drives the impeller 74 to rotate. The flow rate of the emulsion controls the rotation speed of the impeller 74. The rotation of the impeller 74 causes the transmission shaft 73 to rotate, the connecting shaft 76 to rotate, the fan 78 to rotate, and the air outlet pipe 71 discharges air to clean the steel strip.

[0050] 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 four-roller hydraulic finishing mill for copper strip rolling, characterized in that: The invention comprises a frame (2), a fixed frame (31), a mounting frame (32), a lower working roll (36), an upper working roll (38) and a lubrication assembly (4), wherein the fixed frame (31) is fixedly connected to the frame (2), the mounting frame (32) is arranged above the fixed frame (31), the mounting frame (32) is slidably connected to the frame (2), the sliding direction of the mounting frame (32) is vertical, the lower working roll (36) is connected to the fixed frame (31) by rotation around its own axis, and the upper working roll (38) is connected to the fixed frame (31) by rotation around its own axis. The upper working roll (38) is movably connected to the mounting frame (32), the rotation axis of the upper working roll (38) is parallel to the rotation axis of the lower working roll (36), the space between the upper working roll (38) and the lower working roll (36) is used for allowing the steel strip to pass through, the lubrication assembly (4) comprises a nozzle (41) and a nozzle (42), the nozzle (41) is fixedly connected to the mounting frame (32), the nozzle (41) is provided with a nozzle (411) on the outer wall facing the upper working roll (38), and the nozzle (42) is fixedly connected to the inner wall of the nozzle (411).

2. A copper strip rolling four-roller hydraulic finishing mill according to claim 1, characterized in that: The lubrication assembly (4) further comprises a control valve (43), the control valve (43) being connected to the inner wall of the nozzle (41), the control valve (43) being used to control the opening and closing of the nozzle (41) and the flow rate, the control valve (43) being configured as a ball valve, the valve stem of the control valve (43) extending out of the nozzle (41).

3. A four-roller hydraulic finishing mill for copper strip rolling according to claim 2, characterized in that: The lubrication assembly (4) further comprises a gear (44), a guide block (45) and a rack (46); the gear (44) is coaxially fixedly connected to a valve stem of a control valve (43); the mounting frame (32) is provided with a guide opening (322); the guide block (45) is slidably connected to an inner wall of the guide opening (322); the sliding direction of the guide block (45) is parallel to the axis of the upper working roll (38); the rack (46) is fixedly connected to the guide block (45); the length direction of the rack (46) is parallel to the sliding direction of the guide block (45); and the rack (46) is kneaded with the gear (44).

4. A four-roller hydraulic finishing mill for copper strip rolling according to claim 3, characterized in that: The invention also comprises a control assembly (5), wherein the control assembly (5) comprises a fixed ring (51), a rotating ring (52), a first hinged rod (53), a second hinged rod (54), a limit block (55) and a spring (58); both ends of the upper working roller (38) are coaxially fixedly connected to an upper working column (381); the upper working column (381) is rotatably connected to the mounting frame (32) around its own axis; the fixed ring (51) is coaxially fixedly connected to the outer wall of the upper working column (381); the rotating ring (52) is arranged between the fixed ring (51) and the guide block (45); the rotating ring (52) is coaxially rotatably connected to the outer wall of the upper working column (381); one end of the first hinged rod (53) is hinged to the fixed ring (51); The outer wall of the fixed ring (51), the other end of the first hinged rod (53) is hinged to one end of the second hinged rod (54), the other end of the second hinged rod (54) is hinged to the rotating ring (52), the hinge axis of the first hinged rod (53) is tangent to the outer wall of the fixed ring (51), the outer wall of the rotating ring (52) is coaxially provided with a limiting ring groove (521), the limiting ring groove (521) is provided on the side of the second hinged rod (54) away from the first hinged rod (53), the limiting block (55) is fixedly connected to the rack (46), the limiting block (55) is slidably embedded in the limiting ring groove (521), and the two ends of the spring (58) are respectively fixedly connected to the fixed ring (51) and the rotating ring (52).

5. A four-roller hydraulic finishing mill for copper strip rolling according to claim 4, characterized in that: The control assembly (5) further comprises a memory alloy (56) and a hook (57); the rotating ring (52) is provided with a through-opening (522); the through-opening (522) is arranged on the inner circumference of the limiting ring groove (521); the axis of the through-opening (522) is parallel to the axis of the rotating ring (52); the through-opening (522) passes through the rotating ring (52); one end of the memory alloy (56) is fixedly connected to an end of the fixed ring (51) facing the rotating ring (52); the other end of the memory alloy (56) passes through the through-opening (522) and is fixedly connected to the hook (57); the hook (57) is used to abut against an end of the rotating ring (52) facing away from the fixed ring (51).

6. A copper strip rolling four-roller hydraulic finishing mill according to claim 1, characterized in that: The lubrication assembly (4) is provided with two nozzles (41), one nozzle (41) is fixedly connected to the mounting frame (32), and the other nozzle (41) is fixedly connected to the fixing frame (31), and the nozzle (42) sprays toward between the upper working roll (38) and the lower working roll (36).

7. A four-roller hydraulic finishing mill for copper strip rolling according to claim 1, characterized in that: It also comprises a collection box (1) and a drainage pipe (61), wherein the upper end of the collection box (1) is provided with a collection trough (11), the frame (2) is fixedly connected to the bottom of the collection trough (11), the outer wall of the collection box (1) is provided with a drainage port (12), the drainage port (12) is connected to the collection trough (11), and the outer wall of the drainage pipe (61) is fixedly connected to the inner wall of the drainage port (12).

8. A four-roller hydraulic finishing mill for copper strip rolling according to claim 7, characterized in that: It also comprises a platform (63) and a cleaning assembly (7), wherein the platform (63) is fixedly connected to the outer wall of the collection box (1), and the cleaning assembly (7) comprises an air outlet pipe (71), wherein the air outlet pipe (71) is fixedly connected to the upper end of the platform (63) via a support frame, and the air outlet pipe (71) is provided with an air outlet (711) facing the outer wall of the steel belt, and one end of the air outlet pipe (71) is provided with an air inlet (712).

9. A four-roller hydraulic finishing mill for copper strip rolling according to claim 8, characterized in that: The cleaning assembly (7) further comprises a bracket (72), a transmission shaft (73), an impeller (74), a first bevel gear (75), a connecting shaft (76), a second bevel gear (77) and a fan (78), wherein the bracket (72) is fixedly connected to the inner wall of the drain pipe (61), the transmission shaft (73) is rotatably connected to the bracket (72) around its own axis, the rotation axis of the transmission shaft (73) is horizontal, and the impeller (74) and the first bevel gear (75) are both coaxially fixedly connected to the transmission shaft (7 3), the connecting shaft (76) rotates around its own axis and is connected to the drain pipe (61), the rotation axis of the connecting shaft (76) is vertical, the second bevel gear (77) is coaxially fixedly connected to the lower end of the connecting shaft (76), the first bevel gear (75) is meshed with the second bevel gear (77), the upper end of the connecting shaft (76) extends into the air inlet (712), the fan (78) is arranged in the air inlet (712), and the fan (78) is coaxially fixedly connected to the connecting shaft (76).

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