High-quality pickling-free hot rolled steel strip production process

Abstract

The invention relates to the technical field of hot-rolled steel strip production processes, and discloses a high-quality pickling-free hot-rolled steel strip production process which comprises the following steps: step 1, placing a hot-rolled steel strip on a transmission unit; and secondly, the hot rolled steel strip can be conveyed to the mounting unit through the conveying unit. According to the device disclosed by the invention, when a moving plate moves upwards, the moving plate can eject an overturning plate, a rotating rod can rotate under the assistance of a second bearing, and the overturning plate can drive a first movable rod to move when rotating; when a first movable rod moves, a movable block can be driven to horizontally move on a concentric-square-shaped mounting plate, when the movable block moves, a second movable rod can be driven to move, and when the second movable rod moves, a spraying head can be driven to turn over and twist downwards; and water in the water storage tank can be squeezed to be sprayed on the hot rolled steel strip from the spraying head under the movement of the moving plate, so that the hot rolled steel strip can be cleaned.

Description

Technical Field

[0001] The invention belongs to the technical field of hot-rolled steel strip production technology, and in particular relates to a high-quality pickling-free hot-rolled steel strip production technology. Background Art

[0002] With the rapid development of the current society and economy, the demand for hot-rolled steel plates is becoming more and more widespread, and the quality requirements are becoming higher and higher. With the strict control of the country's ecological and environmental protection requirements, the environmental pollution caused by steel products in the subsequent processing process is reduced, which has received more attention from steel production companies and product users. For example, in the processing of pipe products, in order to improve the corrosion resistance and aesthetics of the material, the traditional method is to use pickling or shot blasting to remove the iron oxide scale on the surface of the steel plate before painting, but the waste acid and dust generated seriously pollute the environment. For this reason, it is necessary to develop a high-surface hot-rolled plate product with dense surface iron oxide scale that is not easy to fall off. After processing and forming, it can be directly coated to meet the requirements of the final pipe product.

[0003] However, the existing hot-rolled steel strips are often pickled without pickling by mechanical equipment. The existing pickling-free equipment is often sprayed with water when pickling. However, the existing spray head can often only spray one position of the hot-rolled steel strip once, which easily leads to incomplete spraying.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A high-quality pickling-free hot-rolled steel strip production process comprises the following method steps:

[0007] Step 1: placing the hot rolled steel strip on the transmission unit;

[0008] Step 2: The hot-rolled steel strip can be transmitted to the installation unit through the transmission unit;

[0009] Step 3: When the hot-rolled steel strip is transmitted to the installation unit, the top of the hot-rolled steel strip can be polished and cleaned through the transmission unit and the washing unit;

[0010] Step 4: After grinding and cleaning, the hot rolled steel strip can be further transported through the transport unit;

[0011] The mounting unit comprises four supporting legs, and the four supporting legs are respectively mounted on the transmission unit in pairs, and the four supporting legs are symmetrical to each other. Two symmetrical fixing blocks are fixedly mounted on opposite ends of the four supporting legs, and one end of each fixing block is respectively located on both sides of the transmission unit and is fixedly connected to a mounting plate, and the two mounting plates are symmetrical to each other, and a top plate is fixedly connected to one side wall opposite to the two mounting plates above the four supporting legs, and a water tank is placed below the transmission unit;

[0012] The transmission unit includes a grinding roller, an electric motor is provided in the inner cavity of the grinding roller, and the two ends of the electric motor are respectively fixedly connected to the first rotating rod and the third rotating rod, one end of the first rotating rod and the third rotating rod are respectively fixedly connected to the grinding roller, and movably penetrate the first placement plate and the second placement plate, the first placement plate and the second placement plate are symmetrical to each other, the first sliding mechanism and the second sliding mechanism are respectively provided in the inner cavity of the first placement plate and the second placement plate, the first rotating rod and the third rotating rod are respectively provided with first bearings at opposite ends, the two first bearings are respectively provided on the mounting plates, the first rotating rod and the third rotating rod are both provided with cams, and the two cams are symmetrical to each other;

[0013] The washing unit includes a water tank, which is fixedly installed on the bottom of the top plate. A side wall of the water tank is provided with a plurality of slots arranged at equal distances. A moving mechanism is provided in the inner cavity of each slot. A flip mechanism is provided in the inner cavity of the water tank at the slot. Spray heads are provided under the slots. A moving plate is provided in the inner cavity of the water tank. A lifting mechanism is provided at the bottom of the moving plate.

[0014] As a preferred embodiment of the present invention, four positioning blocks are fixedly installed around the top of the inner cavity of the water tank, and filter nets are placed above the four positioning blocks. A connecting pipe is fixedly passed through one side wall of the water tank, and the other end of the connecting pipe is fixedly passed through the top plate and the top of the water tank. A water pump is arranged on the connecting pipe, and the water pump is installed on the mounting plate.

[0015] As a preferred embodiment of the present invention, the first sliding mechanism includes a first slide groove, the first slide groove is opened on the first placement plate, a first slider is slidably installed in the inner cavity of the first slide groove, a placement slot is opened in the inner cavity of the first slide groove, the placement slot movably passes through the first placement plate, a first rotating rod movably passes through the first slider and the placement slot, and a twisting mechanism is provided in the inner cavity of the first slide groove.

[0016] As a preferred embodiment of the present invention, the second sliding mechanism includes a second slide groove, the second slide groove is opened on the second placement plate, a second slider is slidably installed in the inner cavity of the second slide groove, a placement slot is opened in the inner cavity of the second slide groove, the placement slot movably passes through the second placement plate, a third rotating rod movably passes through the second slider and the placement slot, a circular slot is opened in the middle of the second slider, and a guide rod movably passes through the inner cavity of the circular slot, and the two ends of the guide rod are respectively fixedly connected to the opposite side walls of the inner cavity of the second slide groove.

[0017] As a preferred embodiment of the present invention, the twisting mechanism includes a threaded rod, which is engaged and passes through the first slider, and the other end of the threaded rod is rotatably connected to the bottom of the inner cavity of the first slide groove, and the other end of the threaded rod is movably passed through the top of the first slide groove, and a rotating knob is fixedly connected at the port, and the rotating knob is rotatably connected to the top of the first placement plate.

[0018] As a preferred embodiment of the present invention, the lifting mechanism includes two moving rods, the two moving rods are fixedly connected to the bottom of the moving plate, the two moving rods are sealed and movably penetrate the bottom of the water tank, the other ends of the two moving rods are fixedly connected to connecting rods, and the other ends of the two connecting rods are movably penetrated by limiting rods above, the two limiting rods are symmetrical to each other, and one end of the two limiting rods is fixedly connected to the top plate.

[0019] As a preferred embodiment of the present invention, the flipping mechanism includes a plurality of rotating rods, each of which is provided with a second bearing at both ends, each of which is respectively installed on the inner wall of the water tank, each of which is fixedly connected to a flip plate, one end of each flip plate is located in the inner cavity of the slot, and a rectangular slot is opened at one end of each flip plate located in the slot.

[0020] As a preferred embodiment of the present invention, each of the rotating rods is provided with two mutually symmetrical torsion springs, and both ends of each torsion spring are respectively provided on a side wall opposite to the flip plate and the second bearing.

[0021] As a preferred embodiment of the present invention, the moving mechanism includes a plurality of circular mounting plates, each of which is respectively installed at a notch opened on the side wall of the water tank, and a moving block is sealed and slidably installed in the inner cavity of each circular mounting plate.

[0022] As a preferred embodiment of the present invention, each of the movable blocks is connected to a first movable rod at one end close to the flip plate, and the other end of each of the first movable rods is movably connected to a rectangular slot cavity opened at the flip plate. Each of the movable blocks is movably installed with a second movable rod at the bottom of one end away from the water tank, and the other end of each of the second movable rods is movably connected to the spray head.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] According to the present invention, when the movable plate moves upward, the movable plate will be able to push the flip plate to rotate with the assistance of the rotating rod under the assistance of the second bearing. When the flip plate rotates, it will be able to drive the first movable rod to move. When the first movable rod moves, it will be able to drive the movable block to move horizontally on the circular mounting plate. When the movable block moves, it will be able to drive the second movable rod to move. When the second movable rod moves, it will be able to drive the spray head to flip and twist downward. Therefore, the water in the water tank will be able to squeeze the water from the spray head and spray on the hot-rolled steel strip under the movement of the movable plate, so that the hot-rolled steel strip can be cleaned.

[0025] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the attached picture:

[0027] Figure 1 It is a three-dimensional structural schematic diagram of a high-quality pickling-free hot-rolled steel strip production process;

[0028] Figure 2 It is a rear view structural schematic diagram of a high quality pickling-free hot-rolled steel strip production process;

[0029] Figure 3 A high-quality pickling-free hot-rolled steel strip production process Figure 2 The enlarged structural diagram at A in the middle;

[0030] Figure 4 It is a schematic diagram of the transmission unit structure of a high-quality pickling-free hot-rolled steel strip production process;

[0031] Figure 5 A high-quality pickling-free hot-rolled steel strip production process Figure 4 The enlarged structural diagram at B in the middle;

[0032] Figure 6 It is a side view structural schematic diagram of a high-quality pickling-free hot-rolled steel strip production process;

[0033] Figure 7 It is a schematic diagram of the cross-sectional structure of a water storage tank for a high-quality pickling-free hot-rolled steel strip production process;

[0034] Figure 8 A high-quality pickling-free hot-rolled steel strip production process Figure 7 The enlarged structural diagram at C in the middle;

[0035] Fig. 9A schematic diagram of a water tank structure for a high-quality pickling-free hot-rolled steel strip production process;

[0036] Fig.10 The present invention is a schematic diagram of the cross-sectional structure of the first placement plate of a high-quality pickling-free hot-rolled steel strip production process.

[0037] In the figure:

[0038] 100. Transmission unit;

[0039] 200, mounting unit; 201, supporting leg; 2011, fixing block; 2012, mounting plate; 2013, top plate; 202, water tank; 2021, connecting pipe; 2022, water pump; 2023, filter screen; 2024, positioning block;

[0040] 300, transmission unit; 3011, first rotating rod; 3012, first placement plate; 3013, placement notch; 3014, grinding roller; 3015, third rotating rod; 3016, first bearing; 3017, second placement plate; 302, first slide groove; 3021, first slider; 3022, threaded rod; 3023, rotating knob; 304, cam; 305, second slide groove; 3051, second slider; 3052, guide rod;

[0041] 400, washing unit; 401, water storage tank; 4011, moving plate; 4012, moving rod; 4013, connecting rod; 4014, limiting rod; 4015, notch; 402, rotating rod; 4021, second bearing; 4022, flip plate; 4023, torsion spring; 4024, rectangular notch; 403, circular mounting plate; 4031, moving block; 4032, first movable rod; 4033, second movable rod; 404, spray head. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0043] Embodiment 1:

[0044] like Figures 1 to 10 As shown, a high-quality pickling-free hot-rolled steel strip production process includes the following method steps:

[0045] Step 1: placing the hot-rolled steel strip on the transmission unit 100;

[0046] Step 2: The hot-rolled steel strip can be transmitted to the installation unit 200 through the transmission unit 100;

[0047] Step 3: When the hot-rolled steel strip is transmitted to the installation unit 200, the transmission unit 300 and the washing unit 400 can grind and clean the upper part of the hot-rolled steel strip;

[0048] Step 4: After the hot-rolled steel strip is polished and cleaned, it can be further transported through the transport unit 100;

[0049] The mounting unit 200 includes four supporting legs 201, and the four supporting legs 201 are respectively mounted on the transmission unit 100 in pairs. The four supporting legs 201 are symmetrical to each other, and two symmetrical fixing blocks 2011 are fixedly mounted on opposite ends of the four supporting legs 201. Each fixing block 2011 is respectively located at one end of both sides of the transmission unit 100 and is fixedly connected with a mounting plate 2012. The two mounting plates 2012 are symmetrical to each other, and a top plate 2013 is fixedly connected to one side wall opposite to the two mounting plates 2012 above the four supporting legs 201. A water tank 202 is placed under the transmission unit 100; the transmission unit 300 includes a grinding roller 3014, and the inner cavity of the grinding roller 3014 is provided with The electric motor is provided with a first rotating rod 3011 and a third rotating rod 3015 fixedly connected at both ends of the electric motor, one end of the first rotating rod 3011 and the third rotating rod 3015 are fixedly connected to the grinding roller 3014, and are movable through the first placement plate 3012 and the second placement plate 3017, and are symmetrical with each other on the first placement plate 3012 and the second placement plate 3017, and the first sliding mechanism and the second sliding mechanism are respectively arranged in the inner cavity of the first placement plate 3012 and the second placement plate 3017, and the first rotating rod 3011 and the third rotating rod 3015 are respectively arranged at opposite ends with a first bearing 3016, and the two first bearings 3016 are respectively arranged on the mounting plate 2012, and the first rotating rod 3011 and the third rotating rod 3015 are respectively arranged on the mounting plate 2012. The rotating rods 3015 are provided with cams 304, and the two cams 304 are symmetrical to each other; the washing unit 400 includes a water tank 401, which is fixedly mounted at the bottom of the top plate 2013, and a plurality of slots 4015 are provided on one side wall of the water tank 401, and a moving mechanism is provided in the inner cavity of each slot 4015, and a flip mechanism is provided at the slot 4015 of the inner cavity of the water tank 401, and a spray head 404 is provided below the slot 4015 of the water tank 401, and a moving plate 4011 is provided in the inner cavity of the water tank 401, and a lifting mechanism is provided at the bottom of the moving plate 4011; when the moving plate 4011 moves upward, the moving plate 4011 will be able to push the flip plate 4022 will be able to rotate with the assistance of the second bearing 4021. When the flip plate 4022 rotates, it will be able to drive the first movable rod 4032 to move. When the first movable rod 4032 moves, it will be able to drive the movable block 4031 to move horizontally on the circular mounting plate 403. When the movable block 4031 moves, it will be able to drive the second movable rod 4033 to move. When the second movable rod 4033 moves, it will be able to drive the spray head 404 to flip and twist downward. Therefore, the water in the water tank 401 will be able to squeeze the water from the spray head 404 and spray it on the hot-rolled steel strip under the movement of the movable plate 4011, thereby cleaning the hot-rolled steel strip.

[0050] like Figure 1 to Figure 2 and Figure 4 as well as Fig. 9 As shown, in a specific embodiment, four positioning blocks 2024 are fixedly installed around the inner cavity of the water tank 202, and a filter screen 2023 is placed above each of the four positioning blocks 2024. A connecting pipe 2021 is fixedly penetrated and connected to one side wall of the water tank 202, and the other end of the connecting pipe 2021 is fixedly penetrated through the top plate 2013 and the top of the water storage tank 401. A water pump 2022 is arranged on the connecting pipe 2021, and the water pump 2022 is installed on the mounting plate 2012. In this configuration, when the hot-rolled steel strip is cleaned, the cleaning liquid will be able to enter the water tank 202, and the staff will be able to extract the water in the water tank 202 by starting the water pump 2022.

[0051] Embodiment 2:

[0052] The difference between the above embodiment and this embodiment is that: Figures 2 to 6 and Fig.10 As shown, a high-quality pickling-free hot-rolled steel strip production process, the first sliding mechanism includes a first slide 302, the first slide 302 is opened on the first placement plate 3012, the first slide 302 inner cavity is slidably installed with a first slider 3021, the first slide 302 inner cavity is opened with a placement notch 3013, the placement notch 3013 movably penetrates the first placement plate 3012, the first slider 3021 and the placement notch 3013 are movably penetrated with a first rotating rod 3011, and the first slide 302 inner cavity is provided with a twisting mechanism. The installation position and components of the first sliding mechanism are determined.

[0053] like Figures 2 to 6 As shown, in a specific embodiment, the second sliding mechanism includes a second slide groove 305, the second slide groove 305 is provided on the second placement plate 3017, a second slider 3051 is slidably installed in the inner cavity of the second slide groove 305, a placement notch 3013 is provided in the inner cavity of the second slide groove 305, the placement notch 3013 is movably penetrated through the second placement plate 3017, a third rotating rod 3015 is movably penetrated through the second slider 3051 and the placement notch 3013, a circular notch is provided in the middle of the second slider 3051, and a guide rod 3052 is movably penetrated through the inner cavity of the circular notch, and the two ends of the guide rod 3052 are respectively fixedly connected to the two opposite side walls of the inner cavity of the second slide groove 305. In this configuration, the installation position and components of the second sliding mechanism are determined.

[0054] like Figures 2 to 6As shown, further, the twisting mechanism includes a threaded rod 3022, the threaded rod 3022 is meshed and penetrates the first slider 3021, the other end of the threaded rod 3022 is rotatably connected to the bottom of the inner cavity of the first slide groove 302, the other end of the threaded rod 3022 is movably penetrated above the first slide groove 302, and a rotating knob 3023 is fixedly connected at the port, and the rotating knob 3023 is rotatably connected above the first placement plate 3012. In this configuration, the installation position and components of the twisting mechanism are determined.

[0055] Embodiment 3:

[0056] The difference between the above embodiment and this embodiment is that: Figure 2 and Figure 4 As shown in the figure, a high-quality pickling-free hot-rolled steel strip production process, the lifting mechanism includes two moving rods 4012, the two moving rods 4012 are fixedly connected to the bottom of the moving plate 4011, the two moving rods 4012 are sealed and movably penetrate the bottom of the water tank 401, the other ends of the two moving rods 4012 are fixedly connected to the connecting rod 4013, the other ends of the two connecting rods 4013 are movably penetrated by the limit rod 4014, the two limit rods 4014 are symmetrical to each other, and one end of the two limit rods 4014 is fixedly connected to the top plate 2013. The installation position and components of the lifting mechanism are determined.

[0057] like Figures 6 to 8 As shown, in a specific embodiment, the flip mechanism includes a plurality of rotating rods 402, each of which is provided with a second bearing 4021 at both ends, each of which is respectively mounted on the inner wall of the water storage tank 401, and each of which is fixedly connected with a flip plate 4022, one end of each flip plate 4022 is located in the inner cavity of the slot 4015, and each of which is provided with a rectangular slot 4024 at one end of the flip plate 4022 located in the slot 4015. In this configuration, the installation position and components of the flip mechanism are determined.

[0058] like Figures 6 to 8 As shown, further, each rotating rod 402 is provided with two mutually symmetrical torsion springs 4023, and the two ends of each torsion spring 4023 are respectively provided on a side wall opposite to the flip plate 4022 and the second bearing 4021. In this arrangement, it is ensured that when the moving plate 4011 moves downward, the flip plate 4022 can be reset with the assistance of the torsion spring 4023.

[0059] like Figures 6 to 8 As shown, further, the moving mechanism includes a plurality of circular mounting plates 403, each of which is mounted at a notch 4015 provided on the side wall of the water storage tank 401, and each circular mounting plate 403 has a moving block 4031 sealed and slidably mounted in its inner cavity. In this configuration, the installation position and components of the moving mechanism are determined.

[0060] like Figures 6 to 8 As shown, further, each movable block 4031 is connected to a first movable rod 4032 at one end close to the flip plate 4022, and the other end of each first movable rod 4032 is movably connected to the inner cavity of the rectangular slot 4024 opened at the flip plate 4022, and each movable block 4031 is movably installed with a second movable rod 4033 at the bottom of one end away from the water tank 401, and the other end of each second movable rod 4033 is movably connected to the spray head 404. In this arrangement, when the movable plate 4011 moves upward, the movable plate 4011 will be able to push the flip plate 4022, and the rotating rod 402 will be able to rotate with the assistance of the second bearing 4021. When the flip plate 4022 rotates, it will be able to drive the first movable rod 4032 to move. When the first movable rod 4032 moves, it will be able to drive the movable block 4031 to move horizontally on the circular mounting plate 403. When the movable block 4031 moves, it will be able to drive the second movable rod 4033 to move. When the second movable rod 4033 moves, it will be able to drive the spray head 404 to flip and twist downward.

[0061] The implementation principle of a high-quality pickling-free hot-rolled steel strip production process of this embodiment is as follows:

[0062] When the hot-rolled steel strip needs to be cleaned, the staff can rotate the rotary knob 3023. When the rotary knob 3023 is rotated, the threaded rod 3022 can be driven to rotate. When the threaded rod 3022 is rotated, the first slider 3021 can be driven to move up and down in the first slide groove 302 cavity provided in the first placement plate 3012. When the first slider 3021 moves, the first rotating rod 3011 can be driven to move up and down. When the first rotating rod 3011 moves up and down, the grinding roller 3014 can be driven to move up and down. Therefore, the grinding roller 3014 can drive the third rotating rod 3015 set at the other end to drive the second slider 3051 to move up and down in the second slide groove 305 cavity, thereby adjusting the position of the grinding roller 3014.

[0063] First, the staff places the hot-rolled steel strip on the transmission unit 100 (the transmission unit 100 is an existing hot-rolled transmission device). When the hot-rolled steel strip is placed on the transmission unit 100, the hot-rolled steel strip can be transmitted.

[0064] When the hot-rolled steel strip is transmitted to the installation unit 200, the staff controls the built-in electric motor inside the grinding roller 3014 through the controller, so that the built-in electric motor can respectively drive the first rotating rod 3011 and the third rotating rod 3015 to rotate, and when the first rotating rod 3011 and the third rotating rod 3015 rotate, they can drive the grinding roller 3014 to rotate, so as to grind the transmitted hot-rolled steel strip;

[0065] When the first rotating rod 3011 and the third rotating rod 3015 rotate, the cam 304 can be driven to rotate. When the cam 304 rotates, the connecting rod 4013 installed above can be pushed to move horizontally upward with the assistance of the limiting rod 4014. When the connecting rod 4013 moves horizontally upward, the moving rod 4012 can be driven to move upward. When the moving rod 4012 moves upward, the moving plate 4011 placed in the inner cavity of the water storage tank 401 can be pushed to move horizontally upward.

[0066] When the movable plate 4011 moves upward, the movable plate 4011 will be able to push the flip plate 4022, and the rotating rod 402 will be able to rotate with the assistance of the second bearing 4021. When the flip plate 4022 rotates, it will be able to drive the first movable rod 4032 to move. When the first movable rod 4032 moves, it will be able to drive the movable block 4031 to move horizontally on the circular mounting plate 403. When the movable block 4031 moves, it will be able to drive the second movable rod 4033 to move. When the second movable rod 4033 moves, it will be able to drive the spray head 404 to flip and twist downward. Therefore, the water in the water tank 401 will be able to squeeze the water from the spray head 404 and spray it on the hot-rolled steel strip under the movement of the movable plate 401, so that the hot-rolled steel strip can be cleaned.

Claims

1. A high-quality pickling-free hot-rolled steel strip production process, characterized in that: The method comprises the following steps: Step 1: placing the hot-rolled steel strip on a transmission unit (100); Step 2: The hot-rolled steel strip can be transmitted to the installation unit (200) through the transmission unit (100); Step 3: When the hot-rolled steel strip is transferred to the installation unit (200), the top of the hot-rolled steel strip can be polished and cleaned through the transmission unit (300) and the washing unit (400); Step 4: After the hot rolled steel strip is polished and cleaned, it can be further transported through the transport unit (100); The mounting unit (200) comprises four supporting legs (201), the four supporting legs (201) are respectively mounted on the transmission unit (100) in pairs, the four supporting legs (201) are symmetrical to each other, two symmetrical fixing blocks (2011) are fixedly mounted on opposite ends of the four supporting legs (201), one end of each fixing block (2011) is respectively located on both sides of the transmission unit (100) and is fixedly connected to a mounting plate (2012), the two mounting plates (2012) are symmetrical to each other, and opposite side walls of the two mounting plates (2012) are fixedly connected to a top plate (2013) above the four supporting legs (201), and a water tank (202) is placed below the transmission unit (100); The transmission unit (300) comprises a grinding roller (3014), an inner cavity of the grinding roller (3014) is provided with an electric motor, and the two ends of the electric motor are respectively fixedly connected to a first rotating rod (3011) and a third rotating rod (3015), one end of the first rotating rod (3011) and the third rotating rod (3015) are respectively fixedly connected to the grinding roller (3014), and movably penetrate the first placement plate (3012) and the second placement plate (3017), and the first placement plate (3012) and the second placement plate (3017) are connected to the first placement plate (3012) and the second placement plate (3017). ) are symmetrical to each other, the first sliding mechanism and the second sliding mechanism are respectively arranged in the inner cavity of the first placement plate (3012) and the second placement plate (3017), the first rotating rod (3011) and the third rotating rod (3015) are respectively arranged at the opposite ends thereof with first bearings (3016), the two first bearings (3016) are respectively arranged on the mounting plate (2012), the first rotating rod (3011) and the third rotating rod (3015) are both arranged with cams (304), and the two cams (304) are symmetrical to each other; The washing unit (400) comprises a water tank (401), the water tank (401) being fixedly mounted on the bottom of a top plate (2013), a side wall of the water tank (401) being provided with a plurality of slots (4015) arranged at equal intervals, the inner cavity of each slot (4015) being provided with a moving mechanism, the inner cavity of the water tank (401) being provided with a turning mechanism at the slots (4015), the water tank (401) being provided with a spray head (404) below the slots (4015), the inner cavity of the water tank (401) being provided with a moving plate (4011), and the bottom of the moving plate (4011) being provided with a lifting mechanism.

2. A high-quality pickling-free hot-rolled steel strip production process according to claim 1, characterized in that: Four positioning blocks (2024) are fixedly installed around the inner cavity of the water tank (202), and filters (2023) are placed above the four positioning blocks (2024). A connecting pipe (2021) is fixedly passed through a side wall of the water tank (202), and the other end of the connecting pipe (2021) is fixedly passed through the top plate (2013) and the top of the water storage tank (401). A water pump (2022) is arranged on the connecting pipe (2021), and the water pump (2022) is installed on the mounting plate (2012).

3. A high-quality pickling-free hot-rolled steel strip production process according to claim 1, characterized in that: The first sliding mechanism comprises a first slide groove (302), the first slide groove (302) is provided on a first placement plate (3012), a first slider (3021) is slidably installed in the inner cavity of the first slide groove (302), a placement slot (3013) is provided in the inner cavity of the first slide groove (302), the placement slot (3013) is movably passed through the first placement plate (3012), a first rotating rod (3011) is movably passed through the first slider (3021) and the placement slot (3013), and a twisting mechanism is provided in the inner cavity of the first slide groove (302).

4. A high-quality pickling-free hot-rolled steel strip production process according to claim 1, characterized in that: The second sliding mechanism comprises a second slide groove (305), the second slide groove (305) is provided on the second placement plate (3017), a second slider (3051) is slidably installed in the inner cavity of the second slide groove (305), a placement slot (3013) is provided in the inner cavity of the second slide groove (305), the placement slot (3013) is movably passed through the second placement plate (3017), a third rotating rod (3015) is movably passed through the second slider (3051) and the placement slot (3013), a circular slot is provided in the middle of the second slider (3051), and a guide rod (3052) is movably passed through the inner cavity of the circular slot, and two ends of the guide rod (3052) are respectively fixedly connected to the two opposite side walls of the inner cavity of the second slide groove (305).

5. A high-quality pickling-free hot-rolled steel strip production process according to claim 3, characterized in that: The screwing mechanism comprises a threaded rod (3022), the threaded rod (3022) is meshed and penetrates the first slider (3021), the other end of the threaded rod (3022) is rotatably connected to the bottom of the inner cavity of the first slide groove (302), the other end of the threaded rod (3022) is movably penetrated above the first slide groove (302), and a rotating knob (3023) is fixedly connected at the port, and the rotating knob (3023) is rotatably connected above the first placement plate (3012).

6. A high-quality pickling-free hot-rolled steel strip production process according to claim 1, characterized in that: The lifting mechanism comprises two moving rods (4012), the two moving rods (4012) are fixedly connected to the bottom of the moving plate (4011), the two moving rods (4012) are sealed and movably penetrate the bottom of the water tank (401), the other ends of the two moving rods (4012) are fixedly connected to a connecting rod (4013), the other ends of the two connecting rods (4013) are movably penetrated by a limiting rod (4014) above, the two limiting rods (4014) are symmetrical to each other, and one end of the two limiting rods (4014) is fixedly connected to the top plate (2013).

7. A high-quality pickling-free hot-rolled steel strip production process according to claim 1, characterized in that: The flip mechanism comprises a plurality of rotating rods (402), each of the rotating rods (402) being provided with a second bearing (4021) at both ends, each of the second bearings (4021) being respectively mounted on the inner wall of the water storage tank (401), each of the rotating rods (402) being fixedly connected with a flip plate (4022), one end of each of the flip plates (4022) being located in the inner cavity of the notch (4015), and a rectangular notch (4024) being provided at one end of each of the flip plates (4022) being located in the notch (4015).

8. A high-quality pickling-free hot-rolled steel strip production process according to claim 7, characterized in that: Each of the rotating rods (402) is provided with two mutually symmetrical torsion springs (4023), and two ends of each torsion spring (4023) are respectively provided on a side wall opposite to the flip plate (4022) and the second bearing (4021).

9. A high-quality pickling-free hot-rolled steel strip production process according to claim 1, characterized in that: The moving mechanism comprises a plurality of circular mounting plates (403), each of the circular mounting plates (403) being mounted at a notch (4015) provided on a side wall of the water storage tank (401), and a moving block (4031) being sealed and slidably mounted in the inner cavity of each circular mounting plate (403).

10. A high-quality pickling-free hot-rolled steel strip production process according to claim 9, characterized in that: One end of each of the movable blocks (4031) close to the flip plate (4022) is connected to a first movable rod (4032), and the other end of each of the first movable rods (4032) is movably connected to the inner cavity of a rectangular slot (4024) opened at the flip plate (4022). A second movable rod (4033) is movably installed at the bottom of one end of each of the movable blocks (4031) away from the water tank (401), and the other end of each of the second movable rods (4033) is movably connected to the spray head (404).

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