Rolling mill for steel machining and operation method

Abstract

The invention relates to the technical field of rolling mills, and discloses a rolling mill for steel machining and an operation method.The rolling mill comprises a rolling mill body, two symmetrically-arranged rollers are rotationally installed in the middle of the rolling mill body, conveying frames are fixedly connected to the two sides of the rolling mill body, and a flying shear is arranged on the side face of one conveying frame; a collecting mechanism is installed on the back face of the rolling mill body, a protection mechanism, a cooling mechanism and a slow release mechanism are arranged at the ends of the conveying frame correspondingly, high-temperature metal particles generated during steel shearing can be prevented from splashing through the arranged protection mechanism, and when a contact roller makes contact with the steel, the contact roller is prevented from splashing. According to the device, the tilting end of the steel can be prevented from continuing to tilt upwards during shearing, the operation safety is further improved, waste water is recycled and introduced into the water storage tank in the steel rolling process through the arranged recycling mechanism, the steel in the collecting tank is cooled, and recycling of water resources is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of rolling mills, and in particular to a rolling mill for steel processing and an operating method thereof. Background Art

[0002] Hot rolling mill is a device that rolls the workpiece above the metal recrystallization temperature. Its principle is to use the friction of the rotating rollers to drag the workpiece at high temperature into the rollers, and at the same time rely on the pressure exerted by the rollers to compress and deform the workpiece between two or more rollers, thereby forming steel with the desired size and shape.

[0003] During the steel rolling process, affected by the internal organizational factors of the billet, when the harder or denser part contacts the roller first, it may hinder the normal advancement of the billet as a whole, and then cause the front end of the steel to tilt. During the subsequent rolling, the steel with the tilted front end needs to be cut off. During the flying shearing process of steel, the existing technology directly shears through a flying shear. Due to the high temperature state of the steel and the instability of the tilted part, metal splashing may occur at the moment of shearing. Such high-temperature metal particles can easily cause burns to the operator, posing certain safety hazards. Therefore, it needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a rolling mill and an operating method for steel processing to solve the problems raised in the above background technology. To achieve the above object, the present invention provides the following technical solutions: comprising a rolling mill body, wherein two symmetrically arranged rolling rollers are rotatably mounted in the middle of the rolling mill body, and transmission frames are fixedly connected to both sides of the rolling mill body, a flying shear is arranged on the side of one of the transmission frames, a collecting mechanism is installed on the back of the rolling mill body, and a protection mechanism, a cooling mechanism and a slow-release mechanism are respectively arranged at the ends of the transmission frame;

[0005] The protective mechanism comprises a transverse plate fixedly mounted on both sides of the transmission frame, the surface of the transverse plate is penetrated by a guide groove, the guide groove is arranged in a curved strip shape with the left side higher and the right side lower, a baffle is slidably mounted on the guide groove, two ends of the baffle are movably connected with side sliders, the side sliders are slidably connected to the transverse plate, a rack 1 is fixedly connected to the bottom of one of the side sliders, a gear 1 is rotatably mounted on the left side of the transverse plate, a rotating column is fixedly connected to the top of the gear 1, a conical wheel 1 is fixedly connected to the top of the rotating column, a conical wheel 2 is meshed with a side surface of the conical wheel 1, the conical wheel 1 and the conical wheel 2 are both rotatably connected to the transverse plate, and a curved plate is fixedly connected to the axis of the conical wheel 2;

[0006] One side of the curved plate is fixedly connected with gear 2, and the end of the curved plate away from gear 2 is slidably connected with a contact roller. A spring 1 is sleeved and installed at the place where the curved plate is installed with the contact roller. The contact roller is used to press the front end of the steel to prevent the steel from jumping during flying shearing.

[0007] Preferably, the collecting mechanism comprises a water collecting box symmetrically installed on both sides of the rolling mill body, a slope is provided inside the water collecting box, a filter screen is provided at the low position of the slope, one end of the water collecting box is fixedly connected to a hollow column, a through opening is provided at the connection between the water collecting box and the hollow column, and the water collecting box is connected to the interior of the hollow column.

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

[0009] Preferably, the cooling mechanism includes a water tank which is internally connected to a vertical delivery pipe, a plurality of plug holes are equidistantly provided at the bottom of the water tank, a water stop plate is provided above the plug holes, a plurality of gravity plugs matching the plug holes are fixedly connected to the bottom of the water stop plate, and the gravity plugs are movably connected to the plug holes.

[0010] Preferably, the water stop plate is made of rubber, and the gravity plugs on both sides of the water stop plate are fixedly connected to a mounting frame, and the mounting frame is slidably connected to the water tank. An arc stop strip is fixedly connected to the mounting frame, and the inner surface of the arc stop strip abuts against the top of the baffle plate, so that the water inside the water tank is released.

[0011] Preferably, the slow-release mechanism comprises a curved frame symmetrically mounted on the bottom of the horizontal plate, the curved frame is arranged in an eight-shaped shape, a through slot is penetrated through the curved frame, and a receiving plate 1 and a receiving plate 2 are slidably mounted on the through slot respectively.

[0012] Preferably, a rack 2 is slidably mounted on the outer wall of the receiving plate 2, and the rack 2 is meshed with the gear 2. The function of the rack 2 is to lift the receiving plate 1 and the receiving plate 2 when the curved plate presses the steel, so as to prepare to receive the steel cut by the flying shear.

[0013] Preferably, the surfaces of the receiving plate 1 and the receiving plate 2 are both provided with notches, and plug rods are fixedly connected to both sides of the receiving plate 2. The plug rods are movably plugged into the receiving plate 1, and a spring 2 is sleeved and installed on the plug rods.

[0014] Preferably, it also includes a collecting box, which is used to collect the short steel materials cut by flying shears. A ramp is fixedly installed on the top of the collecting box, and the ramp is arranged just below the water storage tank to guide waste water into the collecting box.

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

[0016] S1: During operation, after the steel is rolled by the main body of the rolling mill, it is transported forward through the transmission frame. At this time, the baffle is located at the low position of the guide groove, and the moving steel pushes the baffle, causing the baffle to move horizontally from the right side to the left side of the cross plate. During the process, the side slider and rack 1 are driven to move synchronously, and the height of the baffle is continuously increased to slide 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 the process, when the contact roller on the curved plate contacts the surface of the steel, the spring 1 is continuously compressed, and the flying shear is started to shear the steel, so that the raised part of the end of the steel is cut off;

[0017] S2: During the rotation of the curved plate, the gear 2 fixedly connected thereto drives the rack 2 to move vertically upward, and the rack 2 pulls the receiving plate 1 and the receiving plate 2 upward, and the insertion rod is continuously inserted into the receiving plate 1 and compresses the spring 2, so that the distance between the receiving plate 1 and the receiving plate 2 is continuously reduced and finally closed. At this time, the cut ends of the steel fall into the notches on the receiving plate 1 and the receiving plate 2, and the remaining formed steel continues to be transported forward;

[0018] S3: During the steel rolling process, cooling water flows from the rollers to both sides of the mill body. When it reaches the water collecting box, it flows along the slope and passes through the filter screen to filter out solid impurities. The water flows through the opening and flows down from the hollow column. It is then transported to the water storage tank through the horizontal conveying pipe, water pump and vertical conveying pipe to recycle the waste water.

[0019] S4: When the guide height of the baffle plate passing through the guide groove becomes higher and higher, it finally breaks the contact with the end of the steel after the steel flying shear, and is located above the steel. In this process, the steel moves upward and presses against the arc stop bar, so that the mounting frame drives the gravity plugs on both sides of the water stop plate to move upward, so that the plug hole is opened, and the water inside the water tank flows out evenly and flows into the collection box along the inclined platform to cool the steel. After the steel is transported from under the baffle plate, the baffle plate automatically returns to its position and drives the receiving plate 1 and the receiving plate 2 to move downward. During the process, according to the set curved frame, the spring 2 automatically opens outward, so that the connection between the receiving plate 1 and the receiving plate 2 is opened, so that the scrap steel falls into the collection box for easy recycling.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, by means of the protective mechanism, when the cut-off point of the steel reaches the designated position during the flying shearing of the steel, the curved plate rotates downward to cover the steel, thereby preventing the splashing of high-temperature metal particles generated by the shearing of the steel, and when the contact roller contacts the steel, it can prevent the raised end of the steel from continuing to rise during shearing, thereby further improving the safety of operation;

[0022] 2. In the present invention, by means of the set release mechanism, when the curved plate rotates downward, the gear 2 drives the rack 1, so that the receiving plate 1 and the receiving plate 2 rise upward, and according to the curved rack, the distance between the two receiving plates is continuously reduced, and the sheared steel is received through the notch. When returning to the original position, the two receiving plates are automatically opened to release the steel, so that the height of the steel release is reduced, which can prevent the splashing of high-temperature metal particles;

[0023] 3. In the present invention, the waste water is recovered during the steel rolling process and introduced into the water storage tank through the recovery mechanism. When the baffle rises to a high position, the water stop plate is lifted up by the cooling mechanism, and the water in the water storage tank automatically leaks out, and the steel in the collection box is cooled, which is beneficial to the recycling of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 It is a front structural schematic diagram of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the collecting mechanism of the present invention;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of the A area in the middle;

[0028] Figure 5 It is a structural schematic diagram of the protection mechanism of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the curved plate, the contact roller and the spring 1 of the present invention;

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

[0031] Figure 8 It is a structural schematic diagram of the slow-release mechanism of the present invention;

[0032] Fig. 9 It is a schematic structural diagram of the receiving plate 1 and the receiving plate 2 of the present invention.

[0033] In the figure: 1, rolling mill body; 2, rolling roller; 3, transmission frame; 4, flying shear; 5, collecting mechanism; 501, water collecting box; 502, slope; 503, filter screen; 504, hollow column; 505, through port; 506, horizontal conveying pipe; 507, water pump; 508, vertical conveying pipe; 6, protection mechanism; 601, horizontal plate; 602, guide groove; 603, baffle; 604, side slide; 605, rack 1; 606, gear 1; 607, rotating column; 608, cone wheel 1; 609 , conical wheel two; 610, curved plate; 611, gear two; 612, contact roller; 613, spring one; 7, cooling mechanism; 701, water storage tank; 702, plug hole; 703, water stop plate; 704, gravity plug; 705, mounting frame; 706, arc retaining strip; 8, slow-release mechanism; 801, curved frame; 802, through groove; 803, receiving plate one; 804, receiving plate two; 805, rack two; 806, notch; 807, plug rod; 808, spring two; 9, collection box; 10, inclined table. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

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

[0037] The cooling mechanism 7 includes a water storage tank 701 which is internally connected to the vertical delivery pipe 508. A plurality of plug holes 702 are equidistantly provided at the bottom of the water storage tank 701. A water stop plate 703 is provided above the plug hole 702. A plurality of gravity plugs 704 which 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 plugged with the plug holes 702. The water stop plate 703 is made of rubber. The gravity plugs 704 on both sides of the water stop plate 703 are fixedly connected to mounting frames 705. The mounting frames 705 are slidably connected to the water storage tank 701. An arc stop bar 706 is fixedly connected to the mounting frame 705. The inner surface of the arc stop bar 706 abuts against the top of the baffle 603, so as to discharge the water inside the water storage tank 701.

[0038] Embodiment 2:

[0039] See also Figure 1 , Figure 2 , Figures 5 to 9 The present invention provides a technical solution: comprising a rolling mill body 1, two symmetrically arranged rolling rollers 2 are rotatably installed in the middle of the rolling mill body 1, transmission frames 3 are 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 protection 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 protection mechanism 6 includes a transverse plate 601 fixedly installed on both sides of the transmission frame 3, a guide groove 602 is opened on the surface of the transverse plate 601, and the guide groove 602 is arranged in a curved strip shape with the left side higher and the right side lower. A baffle 603 is slidably installed on the guide groove 602, and side sliders 604 are movably connected at both ends of the baffle 603. The side sliders 604 are slidably connected to the transverse plate 601, and 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 transverse plate 601, and a rotating column 607 is fixedly connected to the top of the gear 606. A conical wheel 1 608 is fixedly connected to the top, and a conical wheel 2 609 is meshed with the side of the conical wheel 1 608. Both the conical wheel 1 608 and the conical wheel 2 609 are rotatably connected to the horizontal plate 601. A curved plate 610 is fixedly connected to the axis of the conical wheel 2 609. A gear 2 611 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 2 611. A spring 1 613 is sleeved and installed at the place where the curved plate 610 is installed with the contact roller 612. 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.

[0041] The slow-release mechanism 8 includes a curved frame 801 symmetrically installed at the bottom of the horizontal plate 601, and the curved frame 801 is arranged in an eight-shaped shape. A through groove 802 is opened on the curved frame 801, and a receiving plate 1 803 and a receiving plate 2 804 are slidably installed on the through groove 802, and a rack 2 805 is slidably installed on the outer wall of the receiving plate 2 804, and the rack 2 805 is meshed with the gear 2 611. The function of the rack 2 805 is to make the receiving plate 1 803 and the receiving plate 2 804 rise when the curved plate 610 presses the steel material, so as to prepare to receive the steel material 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, and the two sides of the receiving plate 2 804 are fixedly connected with a plug rod 807, and the plug rod 807 is movably plugged with the receiving plate 1 803, and a spring 2 808 is sleeved and installed on the plug rod 807;

[0042] It also includes a collecting box 9, which is used to collect the short steel materials cut by the flying shears. A ramp 10 is fixedly installed on the top of the collecting box 9. The ramp 10 is arranged just below the water storage tank 701 and is used to guide the wastewater into the collecting box 9.

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

[0044] The use method and advantages of the present invention: The operation method of the rolling mill for steel processing, the working process is as follows:

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

[0046] S1: During operation, after the steel is rolled by the rolling mill body 1, it is transported forward through the transmission 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 cross plate 601. In the process, the side slider 604 and the rack 1 605 are driven to move synchronously, and the height of the baffle 603 is continuously increased to slide relative to the side slider 604. After a period of time, the rack 1 605 is meshed with the gear 1 606, and drives the gear 1 606 to rotate. Through the rotating column 607, the conical wheel 1 608 drives the conical wheel 2 609 to rotate, causing the curved plate 610 fixedly connected to the conical wheel 2 609 to swing downward. In the process, when the contact roller 612 on the curved plate 610 contacts the surface of the steel, the spring 1 613 is continuously compressed, and the flying shear 4 is started to shear the steel, so that the raised part of the end of the steel is cut off;

[0047] S2: During the rotation of the curved plate 610, the gear 2 611 fixedly connected thereto drives the rack 2 805 to move vertically upward, and the rack 2 805 pulls the receiving plate 1 803 and the receiving plate 2 804 upward, and the insertion rod 807 is continuously inserted into the receiving plate 1 803 and compresses the spring 2 808, so that the distance between the receiving plate 1 803 and the receiving plate 2 804 is continuously reduced and finally closed. At this time, the cut-off steel ends fall into the notches 806 on the receiving plate 1 803 and the receiving plate 2 804, and the remaining formed steel continues to be transported forward;

[0048] S3: During the steel rolling process, cooling water flows out from the rollers 2 to both sides of the rolling mill body 1. When it reaches the water collecting box 501, it flows along the slope 502 and passes through the filter screen 503 to filter out solid impurities. The water flows through the opening 505 and flows down from 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 to recycle the waste water.

[0049] S4: When the guide height of the baffle 603 passing through the guide groove 602 becomes higher and higher, it finally breaks the contact with the end of the steel after the steel is sheared, and is located above the steel. In this process, the steel moves upward and presses against the arc stop bar, so that the mounting frame 705 drives the gravity plugs 704 on both sides of the water stop plate 703 to move upward, so that the plug hole 702 is opened, and the water flow inside the water 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 from under the baffle 603, the baffle 603 automatically returns to its position and drives the receiving plate 1 803 and the receiving plate 2 804 to move downward. During the process, according to the set curved frame 801, the spring 2 808 automatically opens outward, so that the connection between the receiving plate 1 803 and the receiving plate 2 804 is opened, so that the scrap steel falls into the collection box 9 for easy recycling.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rolling mill for steel processing, characterized in that: The invention comprises a rolling mill body (1), wherein two symmetrically arranged rolling rollers (2) are rotatably mounted in the middle of the rolling mill body (1), transmission frames (3) are 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 protection mechanism (6), a cooling mechanism (7) and a slow-release mechanism (8) are respectively arranged at the ends of the transmission frame (3); The protection mechanism (6) comprises a transverse plate (601) fixedly mounted on both sides of the transmission frame (3); a guide groove (602) is formed through the surface of the transverse plate (601); the guide groove (602) is arranged in a curved strip shape with the left side higher and the right side lower; a baffle (603) is slidably mounted on the guide groove (602); two ends of the baffle (603) are movably connected with side sliders (604); the side sliders (604) are slidably connected to the transverse plate (601); a rack is fixedly connected to the bottom of one of the side sliders (604); (605), a gear 1 (606) is rotatably mounted on the left side of the horizontal plate (601), a rotating column (607) is fixedly connected to the top of the gear 1 (606), a conical wheel 1 (608) is fixedly connected to the top of the rotating column (607), a conical wheel 2 (609) is meshed with the side of the conical wheel 1 (608), the conical wheel 1 (608) and the conical wheel 2 (609) are both rotatably connected to the horizontal plate (601), and a curved plate (610) is fixedly connected to the axis of the conical wheel 2 (609); One side of the curved plate (610) is fixedly connected to gear 2 (611), and one end of the curved plate (610) away from gear 2 (611) is slidably connected to a contact roller (612). A spring 1 (613) is sleeved and installed at the place where the curved plate (610) is installed with the contact roller (612). The contact roller (612) is used to press the front end of the steel to prevent the steel from jumping during flying shearing.

2. A rolling mill for steel processing according to claim 1, characterized in that: The collecting mechanism (5) comprises a water collecting box (501) symmetrically mounted on both sides of the rolling mill body (1); a slope (502) is provided inside the water collecting box (501); a filter screen (503) is provided at the lower position of the slope (502); one end of the water collecting box (501) is fixedly connected to a hollow column (504); a through hole (505) is provided at the connection between the water collecting box (501) and the hollow column (504); the water collecting box (501) is communicated with the inside of the hollow column (504).

3. A rolling mill for steel processing according to claim 2, characterized in that: The bottom ends of the two hollow columns (504) are connected to a transverse delivery pipe (506), the output end of the transverse delivery pipe (506) is connected to a water pump (507), and the top of the water pump (507) is connected to a vertical delivery pipe (508).

4. A rolling mill for steel processing according to claim 1, characterized in that: The cooling mechanism (7) comprises a water storage tank (701) which is internally connected to a vertical delivery pipe (508); a plurality of plug holes (702) are equidistantly provided at the bottom of the water storage tank (701); a water stop plate (703) is provided above the plug holes (702); a plurality of gravity plug heads (704) adapted to the plug holes (702) are fixedly connected to the bottom of the water stop plate (703); the gravity plug heads (704) are movably plugged into the plug holes (702).

5. A rolling mill for steel processing according to claim 4, characterized in that: The material of the water stop plate (703) is rubber material. The gravity plugs (704) on both sides of the water stop plate (703) are fixedly connected to a mounting frame (705). The mounting frame (705) is slidably connected to the water storage tank (701). An arc stop bar (706) is fixedly connected to the mounting frame (705). The inner surface of the arc stop bar (706) abuts against the top of the baffle plate (603) to release the water inside the water storage tank (701).

6. A rolling mill for steel processing according to claim 1, characterized in that: The slow-release mechanism (8) comprises a curved frame (801) symmetrically mounted on the bottom of the horizontal plate (601), the curved frame (801) being arranged in an eight-shaped shape, a through slot (802) penetrating the curved frame (801), and a receiving plate 1 (803) and a receiving plate 2 (804) being slidably mounted on the through slot (802).

7. A rolling mill for steel processing according to claim 6, characterized in that: A second rack (805) is slidably mounted on the outer wall of the second receiving plate (804), and the second rack (805) is meshed with the second gear (611). The function of the second rack (805) is to raise the first receiving plate (803) and the second receiving plate (804) when the curved plate (610) presses the steel, so as to prepare to receive the steel cut by the flying shear.

8. A rolling mill for steel processing according to claim 7, characterized in that: The surfaces of the receiving plate 1 (803) and the receiving plate 2 (804) are both provided with notches (806), and plug rods (807) are fixedly connected to both sides of the receiving plate 2 (804), and the plug rods (807) are movably plugged into the receiving plate 1 (803), and a spring 2 (808) is sleeved and installed on the plug rods (807).

9. A rolling mill for steel processing according to claim 1, characterized in that: It also includes a collecting box (9) for collecting the short steel materials cut off by flying shears. A ramp (10) is fixedly installed on the top of the collecting box (9). The ramp (10) is arranged directly below the water storage tank (701) and is used to guide waste water into the collecting box (9).

10. The method for operating a rolling mill for steel processing according to claim 1, characterized in that: The steps include: S1: During operation, after the steel is rolled by the rolling mill body (1), it is transported forward through the transmission frame (3). At this time, the baffle (603) is located at the lower 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 cross plate (601). During the process, the side slider (604) and the rack (605) are driven to move synchronously. The height of the baffle (603) continues to rise and slides relative to the side slider (604). After a period of time, the rack (605) 605) meshes with gear 1 (606) and drives gear 1 (606) to rotate. Through the rotating column (607), the conical wheel 1 (608) drives the conical wheel 2 (609) to rotate, so that the curved plate (610) fixedly connected to the conical wheel 2 (609) swings downward. During the process, when the contact roller (612) on the curved plate (610) contacts the surface of the steel, the spring 1 (613) is continuously compressed, and the flying shear (4) is started to shear the steel, so that the raised part of the end of the steel is cut off; S2: During the rotation of the curved plate (610), the gear 2 (611) fixedly connected thereto drives the rack 2 (805) to move vertically upward, and the rack 2 (805) pulls the receiving plate 1 (803) and the receiving plate 2 (804) upward, and the insertion rod (807) is continuously inserted into the interior of the receiving plate 1 (803) and compresses the spring 2 (808), so that the distance between the receiving plate 1 (803) and the receiving plate 2 (804) is continuously reduced and finally closed. At this time, the cut-off ends of the steel material fall into the notches (806) on the receiving plate 1 (803) and the receiving plate 2 (804), and the remaining formed steel material continues to be transported forward; S3: During the steel rolling process, cooling water flows out from the rollers (2) to both sides of the rolling mill body (1). When it reaches the water collecting box (501), it flows along the slope (502) and passes through the filter screen (503) to filter out solid impurities. The water flows through the opening (505) and flows down from the hollow column (504). It is then transported to the water storage tank (701) through the horizontal transport pipe (506), the water pump (507) and the vertical transport pipe (508) to recycle the waste water. S4: When the baffle plate (603) passes through the guide groove (602) and the guide height becomes higher and higher, it finally breaks the contact with the end of the steel after the steel is sheared and is located above the steel. During this process, the steel moves upward and presses against the arc stop bar, so that the mounting frame (705) drives the gravity plugs (704) on both sides of the water stop plate (703) to move upward, so that the plug hole (702) is opened, and the water in the water storage tank (701) flows out evenly and flows into the inclined platform (10). In the collection box (9), the steel is cooled. After the steel is transported from under 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 the process, according to the provided curved frame (801), the spring 2 (808) automatically opens outward, so that the space between the receiving plate 1 (803) and the receiving plate 2 (804) is opened, so that the scrap steel falls into the collection box (9) for easy recycling.

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