A rolling mill for steel processing and its operating method

Abstract

This invention relates to the field of rolling mill technology, and discloses a rolling mill and its operating method for steel processing. The mill includes a main body with two symmetrically arranged rolls rotatably mounted in the middle. A transfer frame is fixedly connected to both sides of the main body, and a flying shear is mounted on the side of one of the transfer frames. A collection mechanism is mounted on the back of the main body. A protective mechanism, a cooling mechanism, and a release mechanism are respectively provided at the ends of the transfer frames. The protective mechanism prevents the splashing of high-temperature metal particles generated during steel shearing, and prevents the raised end of the steel from continuing to curl upwards during shearing when the contact roll contacts the steel, further improving operational safety. The collection mechanism recovers wastewater during the steel rolling process and introduces it into a storage tank to cool the steel in the collection tank, which is beneficial for water resource recycling.

Description

Technical Field

[0001] This invention relates to the field of rolling mill technology, specifically to a rolling mill and its operating method for steel processing. Background Technology

[0002] A hot rolling mill is a device for rolling workpieces in a range higher than the recrystallization temperature of metals. Its principle is to use the friction of rotating rolls to drag the high-temperature workpiece into the space between the rolls, and at the same time rely on the pressure applied by the rolls to compress and deform the workpiece between two or more rolls, thereby forming steel with the required size and shape.

[0003] During steel rolling, due to the influence of the internal structure of the billet, when the harder or denser part contacts the rolls first, it may hinder the normal progress of the billet as a whole, causing the front end of the steel to curl up. In subsequent rolling, the curled-up steel needs to be cut off. In the flying shear process, the existing technology directly cuts the steel using a flying shear. Due to the high temperature of the steel and the instability of the curled-up part, metal splatter may occur at the moment of shearing. These high-temperature metal particles can easily cause burns to the operators, posing a certain safety hazard. Therefore, it needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a rolling mill and its operating method for steel processing, in order to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a rolling mill body is included, with two symmetrically arranged rolls rotatably mounted in the middle of the rolling mill body; a transfer frame is fixedly connected to both sides of the rolling mill body; a flying shear is installed on the side of one of the transfer frames; a collecting mechanism is installed on the back of the rolling mill body; and a protective mechanism, a cooling mechanism, and a slow-release mechanism are respectively provided at the ends of the transfer frames.

[0005] The protective mechanism includes horizontal plates fixedly installed on both sides of the transmission frame. A guide groove is opened through the surface of the horizontal plate. The guide groove is set in a curved strip shape with the left side higher than the right side. A baffle is slidably installed on the guide groove. Side sliders are movably connected to both ends of the baffle. The side sliders are slidably connected to the horizontal plate. A rack is fixedly connected to the bottom of one of the side sliders. A gear is rotatably installed on the left side of the horizontal plate. A rotating column is fixedly connected to the top of the gear. A conical wheel is fixedly connected to the top of the rotating column. A conical wheel is meshed with the side of the conical wheel. Both the conical wheel and the conical wheel are rotatably connected to the horizontal plate. A curved plate is fixedly connected to the axis of the conical wheel.

[0006] A gear two is fixedly connected to one side of the curved plate, and a contact roller is slidably connected to the end of the curved plate away from the gear two. A spring one is sleeved and installed at the location where the contact roller is installed on the curved plate. The contact roller is used to press down the front end of the steel to prevent the steel from jumping during flying shearing.

[0007] Preferably, the collection mechanism includes water collection boxes symmetrically installed on both sides of the rolling mill body. The inside of the water collection box is provided with a slope, and a filter screen is provided at the lower part of the slope. A hollow column is fixedly connected to one end of the water collection box, and an opening is provided through the connection between the water collection box and the hollow column. The inside of the water collection box and the hollow column are in communication.

[0008] Preferably, the bottom ends of both hollow columns are connected to a horizontal conveying pipe, the output end of the horizontal conveying pipe is connected to a water pump, and the top of the water pump is connected to a vertical conveying pipe.

[0009] Preferably, the cooling mechanism includes a water storage tank that is internally connected to a vertical conveying pipe. The bottom of the water storage tank has several plug holes equidistantly provided. A water stop plate is provided above the plug holes. Several gravity plugs that are adapted to the plug holes are fixedly connected to the bottom of the water stop plate. The gravity plugs are movably inserted into the plug holes.

[0010] Preferably, the waterstop is made of rubber, and the gravity plugs on both sides of the waterstop are fixedly connected to the mounting brackets. The mounting brackets are slidably connected to the water storage tank, and an arc-shaped baffle is fixedly connected to the mounting brackets. The inner surface of the arc-shaped baffle abuts against the top of the baffle, which serves to release the water inside the water storage tank.

[0011] Preferably, the release mechanism includes curved frames symmetrically installed at the bottom of the horizontal plate. The curved frames are arranged in a figure-eight shape, and a through groove is provided through the curved frames. A first receiving plate and a second receiving plate are slidably installed on the through groove.

[0012] Preferably, a rack two is slidably installed on the outer wall of the receiving plate two. The rack two meshes with the gear two. The function of the rack two is to raise the receiving plate one and the receiving plate two when the curved plate presses down the steel, in preparation for receiving the steel cut by the flying shear.

[0013] Preferably, both the first and second receiving plates have recesses on their surfaces, and the second receiving plate has a fixed rod connected to both sides. The rod is movably inserted into the first receiving plate, and a second spring is sleeved on the rod.

[0014] Preferably, it also includes a collection box for collecting short steel pieces cut off by the flying shear. The top of the collection box is fixedly installed with a ramp, which is located directly below the water storage tank for guiding wastewater into the collection box.

[0015] Preferably, an operating method for a rolling mill used for steel processing includes the following steps:

[0016] S1: During operation, after the steel is rolled by the main body of the rolling mill, it is conveyed forward through the transfer frame. At this time, the baffle is located at the low position of the guide groove. The moving steel pushes the baffle, causing the baffle to move horizontally from the right side to the left side of the horizontal plate. During this process, the side slider and rack 1 move synchronously, and the height of the baffle continuously rises and slides relative to the side slider. After a period of time, rack 1 meshes with gear 1 and drives gear 1 to rotate. Through the rotating column, conical wheel 1 drives conical wheel 2 to rotate, causing the curved plate fixedly connected to conical wheel 2 to swing downward. During this process, when the contact roller on the curved plate contacts the surface of the steel, it continuously compresses spring 1, and the flying shear is started to shear the steel, cutting off the raised part of the steel end.

[0017] S2: During the rotation of the curved plate, the gear two, which is fixedly connected to it, drives the rack two to move vertically upward. The rack two pulls the first and second receiving plates upward. The insert rod is continuously inserted into the interior of the first receiving plate and compresses the second spring, so that the gap between the first and second receiving plates is continuously reduced and eventually closed. At this time, the cut-off steel end falls into the notch on the first and second receiving plates, and the remaining shaped steel continues to be conveyed forward.

[0018] S3: During the steel rolling process, cooling water flows from the rolls to both sides of the main body of the mill. When it reaches the water collection box, it flows down the slope and through the filter screen to filter out solid impurities. The water flows through the opening and down the hollow column, and is transported to the water storage tank through the horizontal conveying pipe, water pump and vertical conveying pipe for wastewater recycling.

[0019] S4: As the baffle increases in height after passing through the guide channel, it eventually breaks contact with the end of the steel after the flying shear, and is positioned above the steel. During this process, as the steel moves upward, it abuts against the arc-shaped stop bar, causing the mounting frame to move the gravity plugs on both sides of the waterstop plate upward, opening the plug holes. Water flows out evenly from inside the water tank and flows into the collection box along the inclined platform, cooling the steel. After the steel is conveyed away from below the baffle, the baffle automatically returns to its original position, causing the receiving plate one and receiving plate two to move downward. During this process, according to the set curved frame, spring two automatically opens outward, opening the gap between receiving plate one and receiving plate two, allowing the scrap steel to fall into the collection box for easy recycling.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. In this invention, through the protective mechanism, when the cut-off point of the steel reaches the designated position during the flying shearing process, the curved plate rotates downward to cover the steel, which can prevent the high-temperature metal particles generated by the shearing of the steel from splashing. In addition, when the contact roller comes into contact with the steel, it can prevent the raised end of the steel from continuing to rise during shearing, further improving operational safety.

[0022] 2. In this invention, through the set slow-release mechanism, when the curved plate rotates downward, the gear two drives the rack one, causing the receiving plate one and the receiving plate two to rise upward. According to the curved frame, the distance between the two receiving plates continuously decreases. The cut steel is received through the notch. When returning to the original position, the two receiving plates automatically open to release the steel, so that the height of the released steel is reduced, which can prevent high-temperature metal particles from splashing.

[0023] 3. In this invention, the wastewater is recycled during the steel rolling process through the recycling mechanism and introduced into the water storage tank. The cooling mechanism lifts the water stop plate when the baffle rises to the high position, and the water in the water storage tank automatically leaks out, cooling the steel in the collection box, which is beneficial to the recycling of water resources. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the front structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the collection mechanism of the present invention;

[0027] Figure 4 For the present invention Figure 3 Enlarged structural diagram of region A in the middle;

[0028] Figure 5 This is a schematic diagram of the protective mechanism of the present invention;

[0029] Figure 6 This is a schematic diagram of the curved plate, contact roller, and spring of the present invention;

[0030] Figure 7 This is a schematic diagram of the cooling mechanism of the present invention;

[0031] Figure 8 This is a schematic diagram of the release mechanism of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the first and second receiving plates of the present invention.

[0033] In the diagram: 1. Rolling mill body; 2. Rolls; 3. Transfer frame; 4. Flying shear; 5. Collection mechanism; 501. Water collection box; 502. Inclined ramp; 503. Filter screen; 504. Hollow column; 505. Through-hole; 506. Horizontal conveying pipe; 507. Water pump; 508. Vertical conveying pipe; 6. Protective mechanism; 601. Horizontal plate; 602. Guide groove; 603. Baffle; 604. Side slider; 605. Rack 1; 606. Gear 1; 607. Rotating column; 608. Conical wheel 1; 609. 610. Conical wheel 2; 611. Curved plate; 612. Gear 2; 613. Contact roller; 614. Spring 1; 7. Cooling mechanism; 701. Water storage tank; 702. Plug hole; 703. Water stop plate; 704. Gravity plug; 705. Mounting bracket; 706. Arc stop bar; 8. Slow release mechanism; 801. Curved frame; 802. Through groove; 803. Support plate 1; 804. Support plate 2; 805. Rack 2; 806. Notch; 807. Insert rod; 808. Spring 2; 9. Collection box; 10. Inclined platform. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1:

[0036] Please see Figure 3 , Figure 4 , Figure 7 The present invention provides a technical solution: the collection mechanism 5 includes water collection boxes 501 symmetrically installed on both sides of the rolling mill body 1. The inside of the water collection box 501 is provided with a slope 502. A filter screen 503 is provided at the low position of the slope 502. A hollow column 504 is fixedly connected to one end of the water collection box 501. A through opening 505 is provided at the connection between the water collection box 501 and the hollow column 504. The inside of the water collection box 501 and the hollow column 504 are connected. The bottom ends of the two hollow columns 504 are connected to a horizontal conveying pipe 506. The output end of the horizontal conveying pipe 506 is connected to a water pump 507. The top of the water pump 507 is connected to a vertical conveying pipe 508.

[0037] The cooling mechanism 7 includes a water storage tank 701 that is internally connected to a vertical conveying pipe 508. Several plug holes 702 are equidistantly opened at the bottom of the water storage tank 701. A water stop plate 703 is provided above the plug holes 702. Several gravity plugs 704 that are adapted to the plug holes 702 are fixedly connected to the bottom of the water stop plate 703. The gravity plugs 704 are movably inserted into the plug holes 702. The water stop plate 703 is made of rubber. Mounting brackets 705 are fixedly connected to the gravity plugs 704 on both sides of the water stop plate 703. The mounting brackets 705 are slidably connected to the water storage tank 701. An arc baffle 706 is fixedly connected to the mounting bracket 705. The inner surface of the arc baffle 706 abuts against the top of the baffle 603, which serves to release the water inside the water storage tank 701.

[0038] Example 2:

[0039] Please see Figure 1 , Figure 2 , Figures 5 to 9 The present invention provides a technical solution: including a rolling mill body 1, two symmetrically arranged rolling rolls 2 are rotatably installed in the middle of the rolling mill body 1, a transmission frame 3 is fixedly connected to both sides of the rolling mill body 1, a flying shear 4 is arranged on the side of one of the transmission frames 3, a collecting mechanism 5 is installed on the back of the rolling mill body 1, and a protective mechanism 6, a cooling mechanism 7 and a slow release mechanism 8 are respectively arranged at the ends of the transmission frame 3.

[0040] The protective mechanism 6 includes horizontal plates 601 fixedly installed on both sides of the transmission frame 3. A guide groove 602 is formed through the surface of the horizontal plate 601, and the guide groove 602 is a curved strip with the left side higher than the right. A baffle 603 is slidably installed on the guide groove 602. Side sliders 604 are movably connected to both ends of the baffle 603 and are slidably connected to the horizontal plate 601. A rack 605 is fixedly connected to the bottom of one of the side sliders 604. A gear 606 is rotatably installed on the left side of the horizontal plate 601, and a rotating column 607 is fixedly connected to the top of the gear 606. A conical wheel 608 is fixedly connected to the top, and a conical wheel 609 meshes with the side of the conical wheel 608. Both the conical wheel 608 and the conical wheel 609 are rotatably connected to the horizontal plate 601. A curved plate 610 is fixedly connected to the axis of the conical wheel 609. A gear 611 is fixedly connected to one side of the curved plate 610. A contact roller 612 is slidably connected to the end of the curved plate 610 away from the gear 611. A spring 613 is sleeved and installed at the location where the contact roller 612 is installed on the curved plate 610. The contact roller 612 is used to press down the front end of the steel to prevent the steel from jumping during flying shearing.

[0041] The slow-release mechanism 8 includes a curved frame 801 symmetrically installed at the bottom of the horizontal plate 601. The curved frame 801 is arranged in a figure-eight shape. A through groove 802 is opened through the curved frame 801. A receiving plate 1 803 and a receiving plate 2 804 are slidably installed on the through groove 802 respectively. A rack 2 805 is slidably installed on the outer wall of the receiving plate 2 804. The rack 2 805 meshes with a gear 2 611. The function of the rack 2 805 is to raise the receiving plate 1 803 and the receiving plate 2 804 when the curved plate 610 presses down the steel, in order to prepare to receive the steel cut by the flying shear. The surfaces of the receiving plate 1 803 and the receiving plate 2 804 are both provided with a notch 806. Insert rods 807 are fixedly connected to both sides of the receiving plate 2 804. The insert rods 807 are movably inserted into the receiving plate 1 803. A spring 2 808 is sleeved on the insert rods 807.

[0042] It also includes a collection box 9, which is used to collect short steel pieces cut off by the flying shear. A ramp 10 is fixedly installed on the top of the collection box 9. The ramp 10 is located directly below the water storage tank 701 and is used to guide wastewater into the collection box 9.

[0043] In this embodiment, the bottom of the collection box 9 is hollow, which can prevent water from accumulating inside and prevent the falling steel from splashing boiling water. At the same time, it can allow wastewater to flow directly out of the collection box 9 after contacting the steel, carrying away excess heat and facilitating the cooling of the steel.

[0044] The method of use and advantages of this invention: The operation method of this rolling mill for steel processing is as follows:

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown:

[0046] S1: During operation, after the steel is rolled by the main body 1 of the rolling mill, it is conveyed forward through the transfer frame 3. At this time, the baffle 603 is located at the low position of the guide groove 602. The moving steel pushes the baffle 603, causing the baffle 603 to move horizontally from the right side to the left side of the horizontal plate 601. During this process, the side slider 604 and the rack 605 move synchronously, and the height of the baffle 603 continuously rises and slides relative to the side slider 604. After a period of time, the rack 605 meshes with the gear 606 and drives the gear 606 to rotate. Through the rotating column 607, the conical wheel 608 drives the conical wheel 609 to rotate, causing the curved plate 610, which is fixedly connected to the conical wheel 609, to swing downward. During this process, when the contact roller 612 on the curved plate 610 contacts the surface of the steel, the spring 613 is continuously compressed, and the flying shear 4 is started to shear the steel, cutting off the raised part of the steel end.

[0047] S2: During the rotation of the curved plate 610, the gear 611 fixedly connected to it drives the rack 805 to move vertically upward. The rack 805 pulls the receiving plate 803 and the receiving plate 804 upward. The insert rod 807 continuously inserts into the inside of the receiving plate 803 and compresses the spring 808, so that the gap between the receiving plate 803 and the receiving plate 804 continuously shrinks and eventually closes. At this time, the cut-off steel end falls into the notch 806 on the receiving plate 803 and the receiving plate 804, and the remaining shaped steel continues to be conveyed forward.

[0048] S3: During the steel rolling process, cooling water flows from the roll 2 to both sides of the mill body 1. When it reaches the water collection box 501, it flows down the slope 502 and through the filter screen 503 to filter out solid impurities. The water flows through the opening 505 and down the hollow column 504. It is then transported to the water storage tank 701 through the horizontal conveying pipe 506, the water pump 507 and the vertical conveying pipe 508 for wastewater recycling.

[0049] S4: As the guide height of the baffle 603 increases after passing through the guide groove 602, it eventually breaks contact with the end of the steel after the steel flying shear, and is positioned above the steel. During this process, as the steel moves upward, it abuts against the arc-shaped stop bar, causing the mounting frame 705 to drive the gravity plugs 704 on both sides of the waterstop plate 703 to move upward, opening the plug hole 702. The water inside the water storage tank 701 flows out evenly and flows into the collection box 9 along the inclined platform 10 to cool the steel. After the steel is transported away from below the baffle 603, the baffle 603 automatically returns to its original position and drives the receiving plate 1 803 and the receiving plate 2 804 to move downward. During this process, according to the set curved frame 801, the spring 2 808 automatically opens outward, opening the space between the receiving plate 1 803 and the receiving plate 2 804, allowing the scrap steel to fall into the collection box 9 for easy recycling.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rolling mill for processing steel material, characterized in that, The utility model provides a kind of rolling mill, including the main body (1) of rolling mill, the middle part of the main body (1) of rolling mill is rotatably installed with two symmetrical rolling mill rolls (2), the two sides of the main body (1) of rolling mill are fixedly connected with transmission frame (3), the side of one of the transmission frame (3) is provided with flying shears (4), the back of the main body (1) of rolling mill is equipped with collection mechanism (5), and the end of the transmission frame (3) is provided with protection mechanism (6), cooling mechanism (7) and slow-release mechanism (8) respectively. The protection mechanism (6) includes a horizontal plate (601) fixedly installed on both sides of the transmission frame (3), a guide groove (602) is formed through the surface of the horizontal plate (601), the guide groove (602) is arranged in a left-high right-low bent strip shape, a baffle (603) is slidably installed on the guide groove (602), two end portions of the baffle (603) are movably connected with side sliding blocks (604), the side sliding blocks (604) are slidably connected with the horizontal plate (601), a first gear rack (605) is fixedly connected to the bottom of one of the side sliding blocks (604), a first gear (606) is rotatably installed on the left side of the horizontal plate (601), a rotating column (607) is fixedly connected to the top of the first gear (606), a conical wheel (608) is fixedly connected to the top of the rotating column (607), a conical wheel (609) is engaged with the side of the conical wheel (608), and the conical wheel (608) and the conical wheel (609) are rotatably connected with the horizontal plate (601). One side of the curved plate (610) is fixedly connected with a second gear (611), a contact roller (612) is slidably connected to the end of the curved plate (610) away from the second gear (611), a spring (613) is sleeved and installed at the position where the curved plate (610) is installed with the contact roller (612), and the contact roller (612) is used to press the front end of the steel material to prevent the steel material from jumping during flying shearing.

2. A rolling mill for processing steel material according to claim 1, characterized in that: The collection mechanism (5) includes water collecting boxes (501) symmetrically installed on both sides of the main body (1) of rolling mill, an inclined slope (502) is formed in the water collecting box (501), a filter screen (503) is arranged at the low position of the inclined slope (502), a hollow stand column (504) is fixedly connected to one end of the water collecting box (501), a through opening (505) is formed through the connection position of the water collecting box (501) and the hollow stand column (504), and the water collecting box (501) and the hollow stand column (504) are in communication.

3. A rolling mill for processing steel material according to claim 2, characterized in that: The bottom ends of the two hollow stand columns (504) are both communicated with horizontal conveying pipes (506), the output end of the horizontal conveying pipe (506) is communicated with a water pump (507), and the top of the water pump (507) is communicated with a vertical conveying pipe (508).

4. A rolling mill for processing steel material according to claim 3, characterized in that: The cooling mechanism (7) comprises a water storage tank (701) in communication with the vertical conveying pipe (508), a plurality of plug holes (702) are equidistantly formed in the bottom of the water storage tank (701), a water stop plate (703) is arranged above the plug holes (702), a plurality of gravity plugs (704) matched with the plug holes (702) are fixedly connected to the bottom of the water stop plate (703), and the gravity plugs (704) are movably inserted into the plug holes (702).

5. A rolling mill for processing steel material according to claim 4, characterized in that: The water stop plate (703) is made of rubber material, the gravity plugs (704) on the two sides of the water stop plate (703) are fixedly connected with mounting racks (705), the mounting racks (705) are slidably connected with the water storage tank (701), arc blocking strips (706) are fixedly connected to the mounting racks (705), and the inner surfaces of the arc blocking strips (706) abut against the top end of the blocking plate (603), so that the water in the water storage tank (701) is discharged.

6. A rolling mill for processing steel material according to claim 5, characterized in that: The slow-release mechanism (8) comprises curved frames (801) symmetrically mounted at the bottom of the horizontal plate (601), the curved frames (801) are arranged in a m-shaped manner, through grooves (802) are formed in the curved frames (801), and receiving plates one (803) and two (804) are slidably mounted on the through grooves (802), respectively.

7. A rolling mill for processing steel material according to claim 6, characterized in that: A rack two (805) is slidably mounted on the outer wall of the receiving plate two (804), the rack two (805) is engaged with a gear two (611), and the rack two (805) is used to lift the receiving plates one (803) and two (804) when the curved plate (610) presses the steel material, so as to prepare to receive the steel material cut by the flying shear.

8. A rolling mill for processing steel material according to claim 7, characterized in that: The receiving plates one (803) and two (804) are both provided with notches (806), plug rods (807) are fixedly connected to the two sides of the receiving plate two (804), the plug rods (807) are movably inserted into the receiving plate one (803), and spring two (808) is sleeved and mounted on the plug rods (807).

9. A rolling mill for processing steel material according to claim 8, characterized in that: The collecting box (9) is used for collecting the short steel material cut by the flying shear, an inclined table (10) is fixedly mounted on the top of the collecting box (9), the inclined table (10) is arranged directly below the water storage tank (701), and the waste water is guided into the collecting box (9).

10. A method of operating a rolling mill for processing steel material according to claim 9, characterized in that, The method comprises the following steps: S1: In operation, when the steel material is rolled through the rolling mill body (1), it is forwarded by the transmission frame (3), at this time, the baffle (603) is located at the low position of the guide groove (602), the moving steel material pushes the baffle (603), so that the baffle (603) translates from the right side to the left side of the horizontal plate (601), in the process, the side sliding block (604) and the rack one (605) move synchronously, and the height of the baffle (603) is constantly rising and relatively sliding with the side sliding block (604), after a period of time, the rack one (605) is engaged with the gear one (606), and the gear one (606) is rotated, through the rotating column (607), the conical wheel one (608) drives the conical wheel two (609) to rotate, so that the curved plate (610) fixedly connected with the conical wheel two (609) swings downward, in the process, when the contact roller (612) on the curved plate (610) contacts the surface of the steel material, the spring one (613) is constantly compressed, and the flying shear (4) is started to shear the steel material, so that the end head of the steel material is cut off; S2: In the rotating process of the curved plate (610), the gear two (611) fixedly connected with the curved plate (610) drives the rack two (805) to move vertically upward, the rack two (805) pulls the receiving plate one (803) and the receiving plate two (804) upward, the inserting rod (807) is constantly inserted into the inside of the receiving plate one (803) and compresses the spring two (808), so that the spacing between the receiving plate one (803) and the receiving plate two (804) is constantly reduced, and finally the receiving plate one (803) and the receiving plate two (804) are closed, at this time, the cut-off end of the steel material falls into the notch (806) on the receiving plate one (803) and the receiving plate two (804), and the remaining shaped steel material continues to be forwarded; S3: In the rolling process of the steel material, the cooling water flows out from the rolling mill body (1) to both sides of the rolling mill body (1), when the cooling water flows into the water collecting box (501), it flows along the slope (502), passes through the filter screen (503), so that the solid impurities are filtered, the water flow flows down from the hollow column (504) through the through hole (505), and is conveyed to the water storage tank (701) through the horizontal conveying pipe (506), the water pump (507) and the vertical conveying pipe (508), so that the waste water is recycled. S4: When the baffle (603) through the guide slot (602) guide height is higher and higher, eventually in the steel flying shear after the end of the contact with the steel, in the process of steel upward movement against the arc baffle, so that the installation frame (705) driven by the stop plate (703) both sides of the gravity plug (704) to move up, the plug hole (702) is opened, the water tank (701) inside the water flow evenly out, and along the inclined table (10) into the collection box (9) in the steel, cooling, after the steel from the baffle (603) below is transported away, the baffle (603) is automatically reset, and drive the receiving plate one (803) and receiving plate two (804) to move down, in the process, according to the setting of the curved frame (801), spring two (808) is automatically opened outward, so that the receiving plate one (803) and receiving plate two (804) between the opening, the scrap steel falls into the collection box (9) for recycling.

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