Cooling device for shear blade of hot-rolled strip steel sampling shear

Abstract

A shear blade cooling device of a hot-rolled strip steel sampling shear comprises a rack, a hydraulic push rod is fixedly installed in the center of the top face of the rack, a shearing tool is fixedly installed at the movable end of the hydraulic push rod, a fixed tool corresponding to the shearing tool is fixedly arranged on the lower portion of the rack, and supporting plates are fixedly installed on the two sides of the fixed tool respectively. A cooling water tank is arranged at the bottom of the fixed cutter, the cooling water tank is fixedly mounted on the rack, a first fan is fixedly mounted on the rack, and the cutting machine is characterized in that the cooling water tank is a closed water tank, and the lower part of the fixed cutter is fixedly mounted in the cooling water tank. The cooling device is simple in structure and ingenious in conception, chippings attached to a rolled belt cannot fall into the cooling water tank, cooling water cannot be affected, the workload of workers is reduced, meanwhile, the air outlet pipe can move along with the shearing tool, the cooling effect on the shearing tool is guaranteed, actual requirements can be met, and the cooling device is suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of shear blade cooling, in particular to a shear blade cooling device for hot-rolled strip steel sampling shears. Background Art

[0002] The shear blade cooling device of the hot-rolled strip sampling shear is an important equipment of the hot rolling production line. It is mainly used for sampling and auxiliary unwinding inspection of the finished steel coils of the hot rolling production line. The shear blade is an important component for completing the shearing; the temperature of the hot-rolled strip is relatively high, so the shear blade will overheat during shearing, causing the blade edge to soften and easily deform after multiple shearing. Therefore, a cooling device is required to prevent the shear blade from being damaged. The State Intellectual Property Office issued an authorization announcement on December 29, 2023, with the authorization announcement number CN220259087U: "A hot-rolled strip sampling shear blade cooling device". The patent discloses a cooling device that can improve the cooling effect, but when the fan in the device is in the blowing and heat dissipation, the debris attached to the rolled strip will fall directly into the cooling water tank. The debris in the cooling water is not easy to separate, which increases the workload of the staff. Therefore, we designed a cooling device in which the debris cannot affect the cooling water. Utility Model Content

[0003] The utility model provides a shear blade cooling device for hot-rolled strip steel sampling shears, which is used to solve the defects in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A shear blade cooling device for hot-rolled strip sampling shears comprises a frame, a hydraulic push rod is fixedly installed at the center of the top surface of the frame, a shearing tool is fixedly installed on the movable end of the hydraulic push rod, a fixed tool is fixedly provided at the lower part of the frame corresponding to the shearing tool, support plates are fixedly installed on both sides of the fixed tool, a cooling water tank is provided at the bottom of the fixed tool, the cooling water tank is fixedly installed on the frame, a first fan is fixedly installed on the frame, and the device is characterized in that: the cooling water tank is a closed water tank, the lower part of the fixed tool is fixedly installed in the cooling water tank, the top of the cooling water tank is an inclined plate inclined to both sides, air outlet ducts are provided on both sides of the shearing tool, the air outlet ducts are connected and installed with the same transverse pipe, the transverse pipe is fixedly installed on the movable end of the hydraulic push rod, and the first fan is connected to the transverse pipe via a telescopic pipe.

[0006] In the shear blade cooling device for hot-rolled strip sampling shears as described above, the air outlet pipe is a gooseneck pipe.

[0007] In the shear blade cooling device for hot-rolled steel strip sampling shears as described above, a box body with an open top is fixedly mounted on the bottom of the frame.

[0008] A shearing blade cooling device for a hot-rolled strip sampling shear as described above. One side of the part of the fixed tool located in the cooling water tank is fixedly installed with a water storage box with an open top and right side. The other side of the fixed tool is fixedly installed with a square pipe. The square pipe is filled with a gas that expands easily when heated. The bottom of the square pipe is connected and installed with two vertical pipes with open tops. Pistons are hermetically slidably installed in the vertical pipes. The pistons are fixedly installed on the corresponding spring rods. Through slots are opened on the square pipe corresponding to the spring rods. One end of the spring rod passes through the through slot and is fixedly installed on the square pipe. Water inlet holes are opened at the bottoms of the vertical pipes. First one-way valves are fixedly installed in the water inlet holes. Water outlet holes are respectively opened at the lower parts of one side of the vertical pipes. Second one-way valves are respectively fixedly installed in the water outlet holes. The water outlet holes are respectively communicated with the water storage box through connecting pipes.

[0009] A shearing blade cooling device for a hot-rolled strip sampling shear as described above. A second blower is fixedly installed at the bottom side of one of the support plates. The air outlet of the second blower faces the fixed tool.

[0010] The advantages of the present utility model are as follows: The structure of the present utility model is simple and ingenious. Debris attached to the rolled strip cannot fall into the cooling water tank, which will not affect the cooling water, reducing the workload of the staff. At the same time, the air outlet pipe can move along with the shearing tool, ensuring the cooling effect on the shearing tool, meeting the actual requirements and being suitable for popularization. When using the present utility model, first place the rolled strip on the placing plate. At this time, control the hydraulic push rod to extend. The hydraulic push rod drives the shearing tool to move downward and cooperate with the fixed tool to shear the rolled strip. During this process, the cooling water in the cooling water tank cools the fixed tool. Start the first blower. The air blown by the first blower enters the air outlet pipe through the telescopic pipe and the horizontal pipe and is finally blown out by the air outlet pipe to cool the shearing tool. During the movement of the shearing tool, the telescopic pipe extends to ensure that the air blown by the first blower can be blown out through the air outlet pipe. The air outlet pipe can also blow off the debris after shearing. The blown-off debris rolls down along the inclined plate at the top of the cooling water tank and will not enter the cooling water, avoiding the need to separate the debris from the cooling water after it enters the cooling water, which increases the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 is a schematic structural diagram of the present utility model; Figure 2 is Figure 1 the A-direction view of Figure 3 is Figure 1View B thereof.

[0013] Reference numerals: 1, frame; 2, hydraulic push rod; 3, shearing tool; 4, fixed tool; 5, cooling water tank; 6, air outlet pipe; 7, horizontal pipe; 8, first fan; 9, telescopic pipe; 10, support plate; 30, box body; 40, water storage box; 41, square pipe; 42, vertical pipe; 43, piston; 44, spring rod; 45, through groove; 46, water inlet hole; 47, first one-way valve; 48, second one-way valve; 49, water outlet hole; 50, connecting pipe; 51, second fan. Detailed implementation manners

[0014] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0015] A shearing edge cooling device for a hot-rolled strip sampling shear, as Figure 1 、 2, as shown in FIGS. 3, it includes a frame 1. The frame 1 is a box body with openings on both left and right sides. At the center of the top surface of the frame 1, a hydraulic push rod 2 is fixedly installed. The fixed end of the hydraulic push rod 2 is fixedly installed on the frame 1. There are reserved holes on the frame 1, and the movable end of the hydraulic push rod 2 is slidably installed in the reserved holes. A shearing tool 3 is fixedly installed on the movable end of the hydraulic push rod 2. A fixed tool 4 is fixedly provided corresponding to the shearing tool 3 at the lower part of the frame 1. Support plates 10 are respectively fixedly installed on both sides of the fixed tool 4. A cooling water tank 5 is provided at the bottom of the fixed tool 4. The cooling water tank 5 is fixedly installed on the frame 1. The front and rear sides of the cooling water tank 5 are respectively fixedly connected to the corresponding side walls of the frame 1. A first blower 8 is fixedly installed on the frame 1. It is characterized in that: the cooling water tank 5 is a closed water tank. The lower part of the fixed tool 4 is fixedly installed in the cooling water tank 5. A reserved hole is opened at the top of the cooling water tank 5, and the fixed tool 4 is fixedly installed in the reserved hole. The cooling water tank 5 is a closed water tank. The top of the cooling water tank 5 is an inclined plate inclined to both sides. Air outlet pipes 6 are provided on both sides of the shearing tool 3. The left and right air outlet pipes 6 are symmetrically distributed. The air outlet pipes 6 are connected and installed to the same horizontal pipe 7. The air outlet pipes 6 are fixedly installed on the horizontal pipe 7. Reserved holes corresponding to the air outlet pipes 6 are provided on the horizontal pipe 7. The air outlet pipes 6 are communicated with the horizontal pipe 7 through the reserved holes. The horizontal pipe 7 is fixedly installed on the movable end of the hydraulic push rod 2. The first blower 8 and the horizontal pipe 7 are communicated through a telescopic pipe 9. A groove is opened on the frame 1, and the telescopic pipe 6 is slidably installed in the groove. The structure of the utility model is simple and ingenious. The debris attached to the rolled belt cannot fall into the cooling water tank 5, which will not affect the cooling water, reducing the workload of the staff. At the same time, the air outlet pipe 6 can move along with the shearing tool 3 to ensure the cooling effect on the shearing tool 3, which can meet the actual needs and is suitable for popularization. When using the utility model, first place the rolled belt on the placing plate 12. At this time, control the hydraulic push rod 2 to extend. The hydraulic push rod 2 drives the shearing tool 3 to move downward and cooperate with the fixed tool 4 to shear the rolled belt. During this process, the cooling water in the cooling water tank 5 cools the fixed tool 4. Start the first blower 8. The air blown out by the first blower 8 enters the air outlet pipes 6 through the telescopic pipe 9 and the horizontal pipe 7, and is finally blown out by the air outlet pipes 6 to cool the shearing tool 3. During the movement of the shearing tool 3, the telescopic pipe 9 extends to ensure that the air blown out by the first blower 8 can be blown out through the air outlet pipes 6. The air outlet pipes 6 can also blow off the debris after shearing. The blown-off debris rolls down along the inclined plate at the top of the cooling water tank 5 and will not enter the cooling water, avoiding the need to separate the debris after it enters the cooling water, which increases the workload of the staff.

[0016] Specifically, as shown in the figure, the air outlet pipe 6 in this embodiment is a gooseneck pipe, and the gooseneck pipe is a kind of metal hose. It can adjust the orientation of the gooseneck pipe according to actual needs and change the direction of the air outlet.

[0017] Specifically, as shown in the figure, a box body 30 with an open top is fixedly installed at the bottom of the frame 1 in this embodiment. The debris of the rolled belt that falls during shearing can fall onto the box body 30 along the inclined plate at the top of the cooling water tank 5, facilitating the cleaning of the debris.

[0018] Further, as shown in the figure, on one side of the part of the fixed cutter 4 located in the cooling water tank 5, a water storage box 40 with an open top and a right side is fixedly installed. The right side of the water storage box 40 is fixedly installed on the fixed cutter 4. On the other side of the fixed cutter 4, a square tube 41 is fixedly installed. Both ends of the square tube 41 are closed, and a gas that is easily expanded by heat is filled inside the square tube 41. Two vertical tubes 42 with open tops are connected and installed at the bottom of the square tube 41. The two vertical tubes 42 are symmetrically distributed front and back. The lower end of the vertical tube 42 is closed. A piston 43 is hermetically and slidably installed inside the vertical tube 42. The piston 43 is fixedly installed on the corresponding spring rod 44. The movable end of the spring rod 44 is fixedly installed with the piston 43. A through slot 45 is provided on the square tube 41 corresponding to the spring rod 44. One end of the spring rod 44 passes through the through slot 45 and is fixedly installed on the square tube 41. The fixed end of the spring rod 44 is fixedly installed on the square tube 41. Water inlet holes 46 are respectively provided at the bottom of the vertical tubes 42. A first one-way valve 47 is fixedly installed inside the water inlet holes 46. Water outlet holes 49 are respectively provided at the lower part on one side of the vertical tubes 42. A second one-way valve 48 is fixedly installed inside the water outlet holes 49. The water outlet holes 49 are respectively connected to the water storage box 40 through connecting pipes 50. Water inlets are respectively provided on both sides of the water storage box 40. One end of the connecting pipe 50 is connected to the corresponding water inlet and is installed inside the water inlet. The other end of the connecting pipe 50 is connected to the corresponding water outlet hole 49 and is fixedly installed inside the water outlet hole 49. When the temperature of the fixed cutter 4 rises, the gas inside the square tube 41 expands due to heat, pushing the piston 43 to move downward. The spring rod 44 is stretched. The water inside the vertical tube 42 enters the water storage box 40 through the second one-way valve 48, the water outlet hole 49, and the connecting pipe 50. The newly entered water squeezes out the hot water in the upper layer inside the water storage box 40 and flows into the cooling water tank 5. When the temperature of the fixed cutter 4 drops, the volume of the gas returns to its original state, and the spring rod 44 drives the piston 43 to reset. The water inside the cooling water tank 5 re-enters the vertical tube 42 through the first one-way valve 47 and the water inlet hole 46, enabling the water inside the water storage box 40 to form a cycle, ensuring that the temperature of the water inside the water storage box 40 in contact with the fixed cutter 4 can be in a low-temperature state.

[0019] Even further, as shown in the figure, a second blower 51 is fixedly installed at the bottom side of the support plate 10 on one side of this embodiment. The air outlet of the second blower 51 faces the fixed cutter 4. Start the second blower 51, and the second blower 51 blows air towards the fixed cutter 4, accelerating the air flow near the fixed cutter 4, thereby accelerating the heat dissipation of the fixed cutter 4.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A shear blade cooling device for hot-rolled steel strip sampling shears, comprising a frame (1), a hydraulic push rod (2) fixedly mounted at the center of the top surface of the frame (1), a shearing tool (3) fixedly mounted on the movable end of the hydraulic push rod (2), a fixed tool (4) fixedly mounted at the lower part of the frame (1) corresponding to the shearing tool (3), support plates (10) fixedly mounted on both sides of the fixed tool (4), a cooling water tank (5) fixedly mounted on the frame (1), a first fan (8) fixedly mounted on the frame (1), characterized in that: The cooling water tank (5) is a closed water tank. The lower part of the fixed tool (4) is fixedly installed in the cooling water tank (5). The top of the cooling water tank (5) is an inclined plate inclined toward both sides. Air outlet pipes (6) are provided on both sides of the shearing tool (3). The air outlet pipes (6) are connected and installed with the same transverse pipe (7). The transverse pipe (7) is fixedly installed on the movable end of the hydraulic push rod (2). The first fan (8) is connected to the transverse pipe (7) through a telescopic pipe (9).

2. The shear blade cooling device for hot-rolled steel strip sampling shears according to claim 1, characterized in that: The air outlet pipe (6) is a gooseneck pipe.

3. The shear blade cooling device for hot-rolled steel strip sampling shears according to claim 1, characterized in that: A box body (30) with an open top is fixedly mounted on the bottom of the frame (1).

4. The shear blade cooling device for hot-rolled steel strip sampling shears according to claim 1, characterized in that: A water storage box (40) with a top and right opening is fixedly installed on one side of the portion of the fixed cutter (4) located in the cooling water tank (5), and a square tube (41) is fixedly installed on the other side of the fixed cutter (4). The square tube (41) is filled with a gas that easily expands when heated. The bottom of the square tube (41) is connected to and installed with two vertical tubes (42) with top openings. A piston (43) is airtightly slidably installed in the vertical tube (42). The piston (43) is fixedly installed on a corresponding spring rod (44). The corresponding spring rod (44) on the square tube (41) The spring rod (44) is provided with a through slot (45), one end of the spring rod (44) passes through the through slot (45) and is fixedly mounted on the square tube (41), the bottom of each vertical tube (42) is provided with a water inlet hole (46), a first one-way valve (47) is fixedly mounted in the water inlet hole (46), a water outlet hole (49) is respectively provided at the lower portion of one side of the vertical tube (42), a second one-way valve (48) is fixedly mounted in the water outlet hole (49), and the water outlet holes (49) are respectively communicated with the water storage box (40) through a connecting pipe (50).

5. The shear blade cooling device for hot-rolled steel strip sampling shears according to claim 1, characterized in that: A second fan (51) is fixedly mounted on the bottom side of the support plate (10) on one side, and an air outlet of the second fan (51) faces the fixed cutter (4).

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