Rolled steel bar cooling treatment device and using method thereof

Abstract

The invention discloses a rolled steel bar cooling treatment device and a using method thereof, and belongs to the technical field of steel bar machining, a steel bar is driven to rotate through a trough, when the steel bar makes contact with a friction strip in a supporting cylinder, the steel bar can rotate in the trough under the friction force action of the friction strip, cooling water enters a fan-shaped spray pipe through a communicating pipe, and cooling is achieved. The fan-shaped spray pipes can spray water out through a plurality of strip-shaped nozzles, and the strip-shaped nozzles communicate with the interior of the supporting barrel, so that cooling water sprayed out of the strip-shaped nozzles can enter the supporting barrel and make contact with the outer wall of the steel bar, and the purpose of cooling the steel bar is achieved; cooling water can make full contact with the outer wall of the steel bar, spraying and covering are uniform, the cooling speed of the steel bar is increased, the phenomenon that the cooling speed of part of the area of the steel bar is high while the cooling speed of other areas is low is avoided, the uniformity of stress distribution in the steel bar is guaranteed, and the product quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar processing, and in particular to a rolled steel bar cooling treatment device and a use method thereof. Background Art

[0002] Rolled steel bars are widely used in the fields of construction, machinery manufacturing, automobile industry, mining, bridge and railway construction. For example, some high-strength steel bars can be used to manufacture support columns in building structures or shaft parts in mechanical parts. The cooling treatment of rolled steel bars is a key step that can significantly affect the mechanical properties and surface quality of the steel bars.

[0003] At present, direct spray cooling is mainly used for cooling rolled steel bars. The surface of the heat-treated steel bars is sprayed with a nozzle for cooling. The direct spray method is difficult to ensure uniform cooling of the steel bars. Due to the uneven coverage of the spray, some areas may cool faster while other areas cool slower, which may lead to uneven stress distribution inside the steel bars, thus affecting the quality and consistency of the product. Summary of the invention

[0004] The object of the present invention is to provide a rolled steel bar cooling treatment device and a method for using the same, so as to solve the problem proposed in the above-mentioned background technology that a direct spray cooling method is adopted to spray and cool the surface of the heat-treated steel bar through a nozzle. The direct spray method is difficult to ensure uniform cooling of the steel bar. Due to the uneven coverage of the spray, some areas may cool faster while other areas cool slower, and this may lead to uneven stress distribution inside the steel bar.

[0005] To achieve the above object, the present invention provides the following technical solutions: A rolled steel bar cooling treatment device comprises a base plate, a cooling water tank is installed on the base plate, a support assembly is provided above the cooling water tank, a feed box is installed on one side of the support assembly, a material guide assembly is installed inside the support assembly, one end of the material guide assembly passes through the support assembly and is fixed with a support shaft, a motor is fixed to the end of the support shaft, the motor is installed on one side of the support assembly, a circulation assembly is provided on the side of the material guide assembly away from the support shaft, the circulation assembly is installed through the support assembly, a cooling assembly is installed outside the support assembly, the bottom of the cooling assembly is installed in the cooling water tank, a protective assembly is installed on the cooling water tank, the protective assembly is located below the support assembly, a plurality of support legs are obliquely installed on both sides of the bottom of the support assembly, and the bottom ends of the support legs are fixed to the base plate.

[0006] As a further solution of the present invention, the support assembly includes a support tube, the inner wall of the support tube is provided with a plurality of friction strips, the feed box is installed in an opening on one side of the support tube, a drop hole is provided at the bottom of the support tube, the drop hole is located above the protective assembly, and a plurality of air holes are provided on one side of the support tube.

[0007] As a further solution of the present invention, the material guide assembly includes a material guide roller, a plurality of material troughs are opened outside the material guide roller, three groups of rollers are installed on the inner wall of the material trough, a through groove is opened in the middle of the material guide roller, a plurality of heat sinks are installed in the through groove, and a plurality of through holes are opened on one side of the inner wall of the through groove.

[0008] As a further solution of the present invention, the circulation component includes a bearing seat, the end of the material guide component is installed in the bearing seat, a fixed cylinder is installed on the other side of the bearing seat, the fixed cylinder is passed through and fixed on one side of the support component, a bracket is fixed on one side of the fixed cylinder, an exhaust fan is installed on the bracket, and the exhaust fan is located inside the fixed cylinder.

[0009] As a further solution of the present invention, the cooling component includes a cooling water pump, which is installed in a cooling water tank. A discharge valve is installed on one side of the cooling water tank. Two water outlet ends of the cooling water pump are respectively installed with conducting pipes, and the other ends of the two conducting pipes are connected to fan-shaped nozzles.

[0010] As a further solution of the present invention, the fan-shaped nozzle is installed outside the support tube, and a plurality of strip nozzles are installed on the inner wall of the fan-shaped nozzle. The strip nozzles are installed through the support tube and are connected to the interior of the support tube.

[0011] As a further solution of the present invention, the protective assembly includes a blanking box, which is installed on a cooling water tank. A plurality of filter holes are provided in the blanking box. Two damping rods are respectively installed on both sides of the blanking box. The damping rod slides through one side of the cooling water tank. A spring is connected to the outer sleeve of the damping rod, and the top of the spring is fixed to the blanking box.

[0012] A method for using a rolled steel bar cooling treatment device, the method comprising the following steps: When the steel bar to be rolled is cooled, the steel bar is placed in the feed box on the support cylinder so that the steel bar can roll through the opening outside the support cylinder into the material trough outside the guide roller, so that the three groups of rollers in the material trough can support the steel bar, and a gap is left between the steel bar and the material trough to facilitate the heat dissipation of the steel bar. The motor is controlled to drive the support shaft to rotate, and the support shaft drives the guide roller to rotate inside the circulation component. The guide roller drives the steel bar to rotate clockwise through the material trough. When the steel bar contacts the friction strip inside the support cylinder, the friction force of the friction strip causes the steel bar to rotate in the material trough. Because the steel bar is supported by the roller, the stability of the steel bar rotation is improved. While the motor is working, the cooling water pump is controlled to work, and the cooling water pump draws water from the cooling water tank. The cooling water enters the fan-shaped nozzle through the guide pipe. The fan-shaped nozzle can spray water through multiple strip nozzles. Since the strip nozzles are installed on the support tube through and connected with the inside of the support tube, the cooling water sprayed by the strip nozzles can enter the support tube and contact the outer wall of the steel rod, so as to achieve the purpose of cooling the steel rod. The guide roller drives the steel rod to rotate and the steel rod rotates, so that the cooling water can fully contact the outer wall of the steel rod, so that the spray coverage is uniform, and the cooling speed of the steel rod is accelerated; As the motor continues to work, multiple material troughs outside the guide roller can limit multiple steel bars and push the steel bars to move, so that the device can cool multiple steel bars at the same time. The cooling water sprayed by the strip nozzle will heat up after contacting the steel bars. The water can fall on the protective component from the drop hole at the bottom of the support tube. The filter holes in the drop box can filter impurities in the water, so that the filtered water flows into the cooling water tank, so that the water can be recycled; When the guide roller drives the steel rod to move through the material trough, the guide roller can transfer heat to the heat sink in the through slot. Through the cooperation between the through slot and the heat sink, the heat dissipation area is expanded, thereby improving the heat dissipation effect. The exhaust fan in the circulation component is controlled to work, which can quickly discharge the heat in the through slot and the heat sink. The external air enters the through slot through the air holes and through holes, increasing the flowability of the gas inside the through slot, further improving the heat dissipation effect. When the guide roller drives the steel rod to move to the bottom, the steel rod can fall into the blanking box from the blanking hole at the bottom of the support tube. The blanking box will move up and down in the cooling water tank under the action of gravity and squeeze multiple damping rods and springs. After the spring is compressed, it will provide a reverse supporting force to the blanking box, which plays a role in buffering the steel rod. Combined with the damping effect of the damping rod, the blanking box can be displaced slightly and reset quickly. Secondly, the steel rod can roll in the blanking box to facilitate the collection of the steel rods and subsequent rolling work.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention limits the steel rod through the material trough outside the guide roller, so that the three groups of rollers in the material trough can support the steel rod, and a gap is left between the steel rod and the material trough to facilitate the heat dissipation of the steel rod. The guide roller drives the steel rod to rotate clockwise through the material trough. When the steel rod contacts the friction strip inside the support cylinder, the steel rod is subjected to the friction force of the friction strip so that it can rotate in the material trough. Because the steel rod is supported by the roller, the stability of the steel rod rotation is improved. The cooling water pump works, the cooling water pump draws water from the cooling water tank, and the cooling water enters the fan-shaped nozzle through the guide pipe. The fan-shaped nozzle can spray water The cooling water is sprayed out through a plurality of strip nozzles. The strip nozzles are installed on the support tube through and connected with the inside of the support tube. Therefore, the cooling water sprayed out by the strip nozzles can enter the support tube and contact with the outer wall of the steel rod, thereby achieving the purpose of cooling the steel rod. The guide roller drives the steel rod to rotate and the steel rod rotates by itself, so that the cooling water can fully contact with the outer wall of the steel rod, and the spray coverage is uniform, thereby accelerating the cooling speed of the steel rod, preventing the phenomenon that some areas of the steel rod may cool quickly while other areas cool slowly, thereby ensuring the uniformity of stress distribution inside the steel rod and improving product quality.

[0014] 2. The present invention can limit multiple steel bars and push the steel bars to move through multiple material troughs outside the guide roller, so that the device can cool multiple steel bars at the same time, thereby improving the cooling efficiency. The cooling water sprayed from the strip nozzle will heat up after contacting the steel bars, and the water can fall onto the protective component from the drop holes at the bottom of the support tube. The filter holes in the drop box can filter impurities in the water, so that the filtered water flows into the cooling water tank, so as to recycle the water and reduce the cost of use. The guide roller can transfer heat to the heat sink in the through groove, and the heat sink and the heat sink cooperate with each other to expand the heat dissipation area, thereby improving the heat dissipation effect. The exhaust fan in the circulation component is controlled to work, which can quickly discharge the heat in the through groove and the heat sink. External air enters the through groove through the wind holes and the through holes, thereby increasing the fluidity of the gas inside the through groove, further improving the heat dissipation effect, and thus accelerating the heat dissipation rate of the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic structural diagram of the side view of the present invention; Figure 3 It is a structural schematic diagram of the cooling component of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a structural schematic diagram of a cross section of a material guide assembly of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the material guide assembly of the present invention when viewed from the front; Figure 7 It is a schematic diagram of the structure of the circulation component of the present invention; Figure 8 It is a structural schematic diagram of a partial cross section of the support assembly of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Bottom plate; 2. Cooling water tank; 3. Support assembly; 301. Support cylinder; 302. Friction strip; 303. Dropping hole; 304. Air hole; 4. Feed box; 5. Material guide assembly; 501. Material guide roller; 502. Material trough; 503. Roller rod; 504. Through slot; 505. Heat sink; 506. Through hole; 6. Circulation assembly; 601. Bearing seat; 602. Fixed cylinder; 603. Bracket; 604. Exhaust fan; 7. Motor; 8. Support shaft; 9. Cooling assembly; 901. Cooling water pump; 902. Conducting pipe; 903. Fan-shaped nozzle; 904. Strip nozzle; 10. Protection assembly; 101. Dropping box; 102. Filter hole; 103. Damping rod; 104. Spring; 11. Support leg; 12. Discharge valve. DETAILED DESCRIPTION

[0018] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 8 , the present invention provides a technical solution: A rolled steel bar cooling treatment device comprises a bottom plate 1, a cooling water tank 2 is installed on the bottom plate 1, a support assembly 3 is arranged above the cooling water tank 2, a feed box 4 is installed on one side of the support assembly 3, a material guide assembly 5 is installed inside the support assembly 3, a support shaft 8 is fixed to one end of the material guide assembly 5 through the support assembly 3, a motor 7 is fixed to the end of the support shaft 8, the motor 7 is installed on one side of the support assembly 3, a circulation assembly 6 is arranged on the side of the material guide assembly 5 away from the support shaft 8, the circulation assembly 6 is installed on the support assembly 3, a cooling assembly 9 is installed outside the support assembly 3, the bottom of the cooling assembly 9 is installed in the cooling water tank 2, a protection assembly 10 is installed on the cooling water tank 2, the protection assembly 10 is located below the support assembly 3, a plurality of support legs 11 are obliquely installed on both sides of the bottom of the support assembly 3, and the bottom ends of the support legs 11 are fixed to the bottom plate 1; During operation, the steel rod is transferred and rotated by driving the material guide component 5 to allow the cooling water to fully contact the outer wall of the steel rod, so that the cooling component 9 can spray and cover evenly, thereby accelerating the cooling speed of the steel rod, preventing the phenomenon that some areas of the steel rod may cool quickly while other areas cool slowly, and ensuring the uniformity of stress distribution inside the steel rod.

[0020] As a further solution of the present invention, the support assembly 3 includes a support cylinder 301, the inner wall of the support cylinder 301 is provided with a plurality of friction strips 302, the feed box 4 is installed in an opening on one side of the support cylinder 301, a drop hole 303 is provided at the bottom of the support cylinder 301, the drop hole 303 is located above the protective assembly 10, and a plurality of air holes 304 are provided on one side of the support cylinder 301; During operation, the material guide roller 501 drives the steel rod to rotate clockwise through the material trough 502. When the steel rod contacts the friction strip 302 inside the support tube 301, the friction force of the friction strip 302 causes the steel rod to rotate in the material trough 502. Since the steel rod is supported by the roller 503, the stability of the steel rod rotation is improved.

[0021] As a further solution of the present invention, the material guide assembly 5 includes a material guide roller 501, a plurality of material troughs 502 are provided outside the material guide roller 501, three groups of rollers 503 are installed on the inner wall of the material trough 502, a through groove 504 is provided in the middle of the material guide roller 501, a plurality of heat sinks 505 are installed in the through groove 504, and a plurality of through holes 506 are provided on one side of the inner wall of the through groove 504; When working, the guide roller 501 can transfer heat to the heat sink 505 in the through groove 504. Through the cooperation between the through groove 504 and the heat sink 505, the heat dissipation area is expanded, thereby improving the heat dissipation effect.

[0022] As a further solution of the present invention, the circulation component 6 includes a bearing seat 601, the end of the material guide component 5 is installed in the bearing seat 601, a fixed cylinder 602 is installed on the other side of the bearing seat 601, the fixed cylinder 602 penetrates and is fixed on one side of the support component 3, a bracket 603 is fixed on one side of the fixed cylinder 602, an exhaust fan 604 is installed on the bracket 603, and the exhaust fan 604 is located inside the fixed cylinder 602; When in operation, the exhaust fan 604 works to quickly discharge the heat in the through slot 504 and the heat sink 505 , and the external air enters the through slot 504 through the air holes 304 and the through holes 506 , thereby increasing the fluidity of the air inside the through slot 504 .

[0023] As a further solution of the present invention, the cooling component 9 includes a cooling water pump 901, which is installed in the cooling water tank 2. A discharge valve 12 is installed on one side of the cooling water tank 2. Two water outlet ends of the cooling water pump 901 are respectively installed with a conducting pipe 902, and the other ends of the two conducting pipes 902 are connected to a fan-shaped nozzle 903; When working, the cooling water pump 901 draws water from the cooling water tank 2, and the cooling water enters the fan-shaped nozzle 903 through the conducting pipe 902. The fan-shaped nozzle 903 can expand the water conducting range and spray and cool the steel rods in a large range.

[0024] As a further solution of the present invention, the fan-shaped nozzle 903 is installed outside the support tube 301, and a plurality of strip-shaped nozzles 904 are installed on the inner wall of the fan-shaped nozzle 903. The strip-shaped nozzles 904 are installed through the support tube 301, and the strip-shaped nozzles 904 are connected to the inside of the support tube 301; During operation, the fan-shaped nozzle 903 can spray water through multiple strip nozzles 904. Since the strip nozzles 904 are installed through the support tube 301, the cooling water sprayed by the strip nozzles 904 can enter the support tube 301 and fully contact the outer wall of the steel rod, thereby improving the cooling effect on the steel rod.

[0025] As a further solution of the present invention, the protection component 10 includes a blanking box 101, which is installed on the cooling water tank 2. A plurality of filter holes 102 are provided in the blanking box 101. Two damping rods 103 are respectively installed on both sides of the blanking box 101. The damping rod 103 penetrates and slides on one side of the cooling water tank 2. A spring 104 is connected to the outer sleeve of the damping rod 103. The top of the spring 104 is fixed to the blanking box 101. During operation, the steel rod can fall into the drop box 101 from the drop hole 303 at the bottom of the support tube 301. The drop box 101 will move up and down on the cooling water tank 2 under the action of gravity and squeeze multiple damping rods 103 and springs 104. After being compressed, the spring 104 will provide a reverse supporting force to the drop box 101, thereby playing a role in buffering and protecting the steel rod.

[0026] A method for using a rolled steel bar cooling treatment device, the method comprising the following steps: When the steel bar to be rolled is cooled, the steel bar is placed in the feed box 4 on the support cylinder 301, so that the steel bar can roll through the opening outside the support cylinder 301 into the material trough 502 outside the guide roller 501, so that the three groups of rollers 503 in the material trough 502 can support the steel bar, and a gap is left between the steel bar and the material trough 502 to facilitate the heat dissipation of the steel bar. The motor 7 is controlled to drive the support shaft 8 to rotate, and the support shaft 8 drives the guide roller 501 to rotate inside the circulation component 6, and the guide roller 501 drives the steel bar to rotate clockwise through the material trough 502. When the steel bar contacts the friction strip 302 inside the support cylinder 301, the friction force of the friction strip 302 causes the steel bar to rotate in the material trough 502. Because the steel bar is supported by the roller 503, the stability of the steel bar rotation is improved; While the motor 7 is working, the cooling water pump 901 is controlled to work, and the cooling water pump 901 draws water from the cooling water tank 2. The cooling water enters the fan-shaped nozzle 903 through the guide pipe 902. The fan-shaped nozzle 903 can spray water through a plurality of strip nozzles 904. Since the strip nozzles 904 are installed on the support tube 301 through and the strip nozzles 904 are connected with the inside of the support tube 301, the cooling water sprayed by the strip nozzles 904 can enter the support tube 301 and contact the outer wall of the steel rod, so as to achieve the purpose of cooling the steel rod. With the help of the guide roller 501 to drive the steel rod to rotate and the steel rod to rotate, the cooling water can fully contact the outer wall of the steel rod, so that the spray coverage is uniform, and the cooling speed of the steel rod is accelerated. As the motor 7 continues to work, the multiple material troughs 502 outside the guide roller 501 can limit the multiple steel bars and push the steel bars to move, so that the device can cool the multiple steel bars at the same time. The cooling water sprayed by the strip nozzle 904 will heat up after contacting the steel bars, and the water can fall onto the protective component 10 from the drop hole 303 at the bottom of the support cylinder 301. The filter hole 102 in the drop box 101 can filter impurities in the water, so that the filtered water flows into the cooling water tank 2, so that the water can be recycled; When the guide roller 501 drives the steel rod to move through the material trough 502, the guide roller 501 can transfer heat to the heat sink 505 in the through slot 504. The heat dissipation area is expanded through the cooperation between the through slot 504 and the heat sink 505, thereby improving the heat dissipation effect. The exhaust fan 604 in the circulation component 6 is controlled to work, and the heat in the through slot 504 and the heat sink 505 can be quickly discharged. The external air enters the through slot 504 through the air hole 304 and the through hole 506, thereby increasing the flowability of the air inside the through slot 504 and further improving the heat dissipation effect. When the guide roller 501 drives the steel rod to move to the bottom, the steel rod can fall into the blanking box 101 from the blanking hole 303 at the bottom of the support cylinder 301. The blanking box 101 will move up and down on the cooling water tank 2 under the action of gravity and squeeze multiple damping rods 103 and springs 104. After being compressed, the springs 104 will provide a reverse supporting force to the blanking box 101, which plays a role in buffering the steel rod. Combined with the damping effect of the damping rod 103, the blanking box 101 can be displaced slightly and quickly reset. Secondly, the steel rod can roll in the blanking box 101, so as to facilitate the collection of the steel rods and subsequent rolling work.

Claims

1. A rolling steel bar cooling treatment device, comprising a bottom plate (1), characterized in that: A cooling water tank (2) is installed on the bottom plate (1), a support assembly (3) is provided above the cooling water tank (2), a feed box (4) is installed on one side of the support assembly (3), a material guide assembly (5) is installed inside the support assembly (3), one end of the material guide assembly (5) passes through the support assembly (3) and is fixed with a support shaft (8), an end of the support shaft (8) is fixed with a motor (7), the motor (7) is installed on one side of the support assembly (3), and one end of the material guide assembly (5) away from the support shaft (8) is fixed with a motor (7). A circulation component (6) is provided on the side, the circulation component (6) is installed through the support component (3), a cooling component (9) is installed on the outside of the support component (3), the bottom of the cooling component (9) is installed in the cooling water tank (2), a protection component (10) is installed on the cooling water tank (2), the protection component (10) is located below the support component (3), and a plurality of support legs (11) are installed obliquely on both sides of the bottom of the support component (3), and the bottom ends of the support legs (11) are fixed to the bottom plate (1).

2. A rolled steel bar cooling treatment device according to claim 1, characterized in that: The support assembly (3) comprises a support tube (301), the inner wall of the support tube (301) is provided with a plurality of friction strips (302), the feed box (4) is installed in an opening on one side of the support tube (301), a drop hole (303) is provided at the bottom of the support tube (301), the drop hole (303) is located above the protective assembly (10), and a plurality of air holes (304) are provided on one side of the support tube (301).

3. A rolled steel bar cooling treatment device according to claim 1, characterized in that: The material guide assembly (5) comprises a material guide roller (501), a plurality of material troughs (502) are provided on the outside of the material guide roller (501), three groups of rollers (503) are installed on the inner wall of the material trough (502), a through groove (504) is provided in the middle of the material guide roller (501), a plurality of heat sinks (505) are installed in the through groove (504), and a plurality of through holes (506) are provided on one side of the inner wall of the through groove (504).

4. A rolled steel bar cooling treatment device according to claim 1, characterized in that: The circulation component (6) comprises a bearing seat (601), an end of the material guide component (5) is mounted in the bearing seat (601), a fixed cylinder (602) is mounted on the other side of the bearing seat (601), the fixed cylinder (602) penetrates and is fixed on one side of the support component (3), a bracket (603) is fixed on one side of the fixed cylinder (602), an exhaust fan (604) is mounted on the bracket (603), and the exhaust fan (604) is located inside the fixed cylinder (602).

5. The rolled steel bar cooling treatment device according to claim 2, characterized in that: The cooling component (9) comprises a cooling water pump (901), the cooling water pump (901) being installed in a cooling water tank (2), a discharge valve (12) being installed on one side of the cooling water tank (2), two water outlet ends of the cooling water pump (901) being respectively installed with conducting pipes (902), and the other ends of the two conducting pipes (902) being connected to fan-shaped nozzles (903).

6. A rolled steel bar cooling treatment device according to claim 5, characterized in that: The fan-shaped nozzle (903) is installed outside the support tube (301), and a plurality of strip-shaped nozzles (904) are installed on the inner wall of the fan-shaped nozzle (903). The strip-shaped nozzles (904) are installed through the support tube (301), and the strip-shaped nozzles (904) are connected to the inside of the support tube (301).

7. The rolled steel bar cooling treatment device according to claim 1, characterized in that: The protection component (10) comprises a blanking box (101), wherein the blanking box (101) is mounted on a cooling water tank (2), wherein a plurality of filter holes (102) are provided in the blanking box (101), and two damping rods (103) are respectively mounted on both sides of the blanking box (101), wherein the damping rod (103) penetrates and slides on one side of the cooling water tank (2), and a spring (104) is connected to the outer sleeve of the damping rod (103), and the top end of the spring (104) is fixed to the blanking box (101).

8. A method for using a rolled steel bar cooling treatment device, according to any one of claims 1 to 7, characterized in that: The method of use comprises the following steps: When the steel bar to be rolled is cooled, the steel bar is placed in a feed box (4) on the support cylinder (301), so that the steel bar can roll through the opening outside the support cylinder (301) into the material trough (502) outside the guide roller (501), so that the three groups of rollers (503) in the material trough (502) can support the steel bar, and a gap is left between the steel bar and the material trough (502) to facilitate heat dissipation of the steel bar, and the motor (7) is controlled to work so that it drives the support shaft ( 8) rotates, the support shaft (8) drives the guide roller (501) to rotate inside the circulation component (6), and the guide roller (501) drives the steel rod to rotate clockwise through the material trough (502). When the steel rod contacts the friction strip (302) inside the support cylinder (301), the friction force of the friction strip (302) causes the steel rod to rotate inside the material trough (502). Since the steel rod is supported by the roller (503), the stability of the rotation of the steel rod is improved; While the motor (7) is working, the cooling water pump (901) is controlled to work, and the cooling water pump (901) pumps water from the cooling water tank (2). The cooling water enters the fan-shaped nozzle (903) through the guide pipe (902). The fan-shaped nozzle (903) can spray water through a plurality of strip nozzles (904). Since the strip nozzles (904) are installed on the support tube (301) and the strip nozzles (904) are connected to the inside of the support tube (301), the cooling water sprayed from the strip nozzles (904) can enter the support tube (301) and contact the outer wall of the steel rod, thereby achieving the purpose of cooling the steel rod. The guide roller (501) drives the steel rod to rotate and the steel rod rotates, so that the cooling water can fully contact the outer wall of the steel rod, so that the spray coverage is uniform, thereby accelerating the cooling speed of the steel rod. As the motor (7) continues to work, the multiple material troughs (502) outside the material guide roller (501) can limit the multiple steel bars and push the steel bars to move, so that the device can cool the multiple steel bars simultaneously. The cooling water sprayed by the strip nozzle (904) will heat up after contacting the steel bars. The water can fall onto the protective component (10) from the drop hole (303) at the bottom of the support cylinder (301). The filter hole (102) in the drop box (101) can filter impurities in the water, so that the filtered water flows into the interior of the cooling water tank (2), so that the water can be recycled. When the material guide roller (501) drives the steel rod to move through the material trough (502), the material guide roller (501) can transfer heat to the heat sink (505) in the through groove (504). The through groove (504) and the heat sink (505) cooperate with each other to expand the heat dissipation area, thereby improving the heat dissipation effect. The exhaust fan (604) in the circulation component (6) is controlled to work, so that the heat in the through groove (504) and the heat sink (505) can be quickly discharged. External air enters the through groove (504) through the air hole (304) and the through hole (506), thereby increasing the flowability of the air inside the through groove (504) and further improving the heat dissipation effect. When the guide roller (501) drives the steel rod to move to the bottom, the steel rod can fall into the drop box (101) from the drop hole (303) at the bottom of the support tube (301). The drop box (101) moves up and down on the cooling water tank (2) under the action of gravity and squeezes multiple damping rods (103) and springs (104). After being compressed, the springs (104) provide a reverse support force to the drop box (101), which plays a role in buffering the steel rod. In combination with the damping effect of the damping rod (103), the drop box (101) can be slightly displaced and quickly reset. Secondly, the steel rod can roll in the drop box (101) to facilitate the collection of the steel rod and subsequent rolling work.

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