Winding drum of hot rolling coiler

Abstract

The invention belongs to the technical field of hot-rolled plate coiling machines, and particularly relates to a hot-rolled coiling machine coiling block which comprises a core shaft, a hollow shaft, a plurality of sector plates and plunger bodies arranged between the core shaft and the sector plates, trapezoidal grooves are formed in the shaft wall of the core shaft, the tops of the plunger bodies are fixedly connected with the inner walls of the sector plates, and the inner walls of the sector plates are fixedly connected with the hollow shaft. And the bottom of the plunger body is arranged at the bottom of the trapezoidal groove in a sliding manner. By arranging the pressure detection mechanism, the lubricant spraying mechanism and the winding drum diameter measurement mechanism, the extrusion force between a sector plate and a hot-rolled coil plate can be monitored in real time, when the pressure is too large, a lubricant is automatically sprayed to reduce friction and abrasion, winding defects are avoided, equipment is cooled, the diameter of a winding drum can be accurately measured to pre-judge the abrasion trend, and the production efficiency is improved. And when the wear risk is high, an alarm is given to remind maintenance, so that the stability and the reliability of equipment operation are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of hot-rolled coil winding machines, and in particular relates to a reel of a hot-rolled coil winding machine. Background Art

[0002] As an important industrial raw material, hot-rolled coil is widely used in various industries. With the rapid development of these industries, the demand for hot-rolled coil is also increasing. During the production of hot-rolled coil, the coiler is an important auxiliary equipment in the steel rolling workshop.

[0003] The coiler is installed at the tail of the hot-rolled coil rolling line of the hot-rolled continuous rolling mill, and is used to roll the hot-rolled coil products at the coiling temperature into finished coils, so as to facilitate the coiling, bundling, loading and unloading of the hot-rolled coils. The coiler is the core component of the coiler and plays a decisive role in the coiling process. For example, the announcement number: CN103894446B discloses a hot-rolled coiler coil. The existing coiler is mainly composed of a mandrel and a plurality of fan-shaped plates. The fan-shaped plates are in direct contact with the surface of the hot-rolled coil. During the coiling process, it not only has to withstand the coiling tension of the hot-rolled coil to ensure that the hot-rolled coil is tightly and stably wound on the coiler, but also has to cope with the huge friction generated by the high-speed movement of the hot-rolled coil. As the production continues, the fan-shaped plates are subjected to high-intensity friction and tension for a long time, and the wear problem becomes more and more prominent, which not only affects the coiling quality of the coiler, resulting in poor coil shape of the hot-rolled coil and increasing the defective rate, but also reduces the service life of the coiler, which greatly increases the equipment maintenance cost.

[0004] To this end, a hot rolling coiler reel is proposed. Summary of the invention

[0005] The object of the present invention is to provide a hot rolling coiler reel in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical scheme: a hot rolling coiler reel, comprising a mandrel, a hollow shaft, a plurality of sector plates and a plunger body arranged between the mandrel and the plurality of sector plates, the shaft wall of the mandrel is provided with a trapezoidal groove, the top of the plunger body is fixedly connected to the inner wall of the sector plate, and the bottom of the plunger body is slidably arranged at the bottom of the trapezoidal groove, and also includes: A plurality of pressure detection mechanisms are respectively arranged on the surfaces of the plurality of sector plates, and are used to detect the extrusion force between the plurality of sector plates and the hot-rolled coil; A lubricant spraying mechanism is disposed between one end of the mandrel and the plurality of sector plates, and is used to lubricate and cool the surfaces of the plurality of sector plates; A roll diameter measuring mechanism is fixedly arranged on the outer wall of the hollow shaft, and a pulling end of the roll diameter measuring mechanism is fixedly connected to the inner side surface of one of the sector plates; The PLC controller is fixedly arranged on the side wall of the coiler, and the pressure detection mechanism, the lubricant spraying mechanism and the roll diameter measuring mechanism are all electrically connected to the PLC controller.

[0007] Preferably, a fixing plate is fixedly provided on the inner wall of one end of the hollow shaft, a square plug rod is fixedly provided in the middle of the fixing plate, a square slot which is plugged into and cooperates with one end of the square plug rod is opened at one end of the core shaft, a driving connecting plate is fixedly provided on the end of the square plug rod away from the core shaft, and a hydraulic cylinder connecting head is fixedly provided on the end of the core shaft away from the driving connecting plate.

[0008] Preferably, the pressure detection mechanism includes a fixed sleeve fixedly arranged inside the fan-shaped plate, an extrusion head is provided inside the fixed sleeve, and a sliding sealing sleeve is provided between the extrusion head and the fixed sleeve, one end of the extrusion head passes through the interior of the fan-shaped plate and extends outward, an elastic telescopic rod is fixedly arranged inside the fixed sleeve, and a high-temperature ceramic pressure sensor that is in contact with one end of the extrusion head is fixedly arranged at the movable end of the elastic telescopic rod, and an overpressure frequency counting mechanism is provided inside the fixed sleeve.

[0009] Preferably, the overpressure frequency counting mechanism includes a touch switch fixedly arranged inside the fixed sleeve, the touch head of the touch switch can be arranged in contact with the extrusion head, the inner wall of the fixed sleeve is fixedly provided with a pulse counter, a wireless communication module and a battery, the touch switch is electrically connected to the pulse counter, and the pulse counter, wireless communication module and battery are all electrically connected to the PLC controller.

[0010] Preferably, the lubricant spraying mechanism includes a high-temperature resistant elastic rubber tube fixedly arranged between the hydraulic cylinder connecting head and the plurality of fan-shaped plates, the plurality of fan-shaped plates and the hydraulic cylinder connecting head both adopt a hollow structure, the outer surfaces of the plurality of fan-shaped plates are provided with a plurality of evenly distributed spray holes, a liquid supply pipe is fixedly arranged on one side of the hydraulic cylinder connecting head, and a lubricant rotating joint is fixedly arranged on one end of the liquid supply pipe, the lubricant rotating joint is connected to an external lubricant pump body, and the tube walls of the plurality of high-temperature resistant elastic rubber tubes are provided with solenoid valves.

[0011] Preferably, the drum diameter measuring mechanism includes a high-temperature resistant measuring box body fixedly arranged on the outer wall of the hollow shaft, a measuring resistance rod is laterally fixedly arranged inside the high-temperature resistant measuring box body, a measuring conductive sleeve is slidably arranged on the rod wall of the measuring resistance rod, a sliding block is fixedly arranged on the outer wall of the measuring conductive sleeve, and both sides of the sliding block are slidably arranged with the inner walls of both sides of the high-temperature resistant measuring box body, two reset springs are symmetrically fixed between one side of the sliding block and the inner wall of the high-temperature resistant measuring box body, and a pulling rope is fixedly arranged on the other side of the sliding block, one end of the pulling rope extends away from the sliding block to the outside of the high-temperature resistant measuring box body, and one end of the pulling rope is fixedly connected to the inner side surface of the fan-shaped plate.

[0012] Preferably, the bottom of the trapezoidal groove is an inclined surface, the bottom of the plunger body matches the bottom of the trapezoidal groove, a limiting rod is fixedly provided inside the trapezoidal groove, and the plunger body is slidably connected to the limiting rod.

[0013] Preferably, the top of the plunger body and the inner side surface of the sector plate, as well as the fixing sleeve and the inner side surface of the sector plate are fixedly connected by bolts.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The roll diameter measuring mechanism is set up to accurately measure the roll diameter in real time. It uses the relationship between the movement of the sector plate and the sliding of the measuring conductive sleeve on the measuring resistance rod to convert the resistance change into a current signal and transmit it to the PLC controller. The internal program calculates the movement distance of the sector plate to obtain the roll winding diameter. The staff can set the threshold in advance based on this, predict the extrusion pressure and wear trend between the hot-rolled coil and the sector plate according to the roll diameter, and then adjust the equipment operating parameters, such as lowering the pressure detection threshold when the diameter is large, and starting lubrication protection measures in advance to ensure stable coiling quality.

[0015] By setting up a pressure detection mechanism, the pressure detection mechanism is distributed on the surface of the fan-shaped plate, which can monitor the extrusion pressure between the hot-rolled coil and the fan-shaped plate in real time. When the high-temperature ceramic pressure sensor detects that the pressure value reaches the preset threshold, the PLC controller immediately starts the lubricant pump body and delivers the lubricant to the hot-rolled coil and the fan-shaped plate through the lubricant spraying mechanism. It not only reduces the friction coefficient between the two, reduces equipment wear and extends service life, but also avoids winding defects caused by excessive friction, such as surface scratches, wrinkles, etc. At the same time, the lubricant takes away heat to prevent changes in material properties and equipment deformation due to excessive temperature.

[0016] The overpressure frequency counting mechanism is set up to count the frequency of the fan plate being subjected to greater extrusion wear. When the high-temperature ceramic pressure sensor detects that the pressure is too high, the extrusion head squeezes the touch switch to generate a pulse signal. The pulse counter counts and transmits the result to the PLC controller. If the count reaches a certain value, the built-in alarm of the PLC controller is activated to remind the staff to promptly inspect the fan plate with high wear risk to avoid the expansion of faults, ensure the continuous and stable operation of the equipment, and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereoscopic diagram of a hot rolling coiler drum provided by the present invention; Figure 2 It is a schematic diagram of the end surface structure of a hot rolling coiler drum provided by the present invention; Figure 3 It is a cutaway stereoscopic diagram of a hot rolling coiler drum provided by the present invention; Figure 4 It is a stereoscopic diagram of a hot rolling coiler reel pressure detection mechanism and an overpressure frequency counting mechanism provided by the present invention; Figure 5 It is a stereoscopic diagram of a hot rolling coiler reel fixing sleeve, an extrusion head and a sliding sealing sleeve provided by the present invention; Figure 6 It is a stereoscopic diagram of a coil diameter measuring mechanism for a hot rolling coiler coil provided by the present invention.

[0018] In the figure: 1 core shaft, 2 hollow shaft, 3 sector plate, 4 plunger body, 5 trapezoidal groove, 6 pressure detection mechanism, 61 fixed sleeve, 62 extrusion head, 63 sliding sealing sleeve, 64 elastic telescopic rod, 65 high temperature ceramic pressure sensor, 7 lubricant spraying mechanism, 71 high temperature resistant elastic rubber tube, 72 spray hole, 73 liquid supply pipe, 74 lubricant rotary joint, 75 solenoid valve, 8 reel diameter measuring mechanism, 81 high temperature resistant measuring box body, 82 measuring resistance rod, 83 measuring conductive sleeve, 84 sliding block, 85 reset spring, 86 pulling rope, 9 PLC controller, 10 fixed plate, 11 square plug rod, 12 square slot, 13 drive connection plate, 14 hydraulic cylinder connector, 15 overpressure frequency counting mechanism, 151 touch switch, 152 pulse counter, 153 wireless communication module, 154 battery, 16 limit rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1-Figure 6As shown, a hot rolling coiler reel comprises a mandrel 1, a hollow shaft 2, a plurality of sector plates 3 and a plunger body 4 arranged between the mandrel 1 and the plurality of sector plates 3, the shaft wall of the mandrel 1 is provided with a trapezoidal groove 5, the top of the plunger body 4 is fixedly connected to the inner wall of the sector plate 3, and the bottom of the plunger body 4 is slidably arranged at the bottom of the trapezoidal groove 5, the bottom of the trapezoidal groove 5 is an inclined surface, the bottom of the plunger body 4 matches the bottom of the trapezoidal groove 5, a limiting rod 16 is fixedly arranged inside the trapezoidal groove 5, the plunger body 4 is slidably connected to the limiting rod 16, the limiting rod 16 can increase the stability of the connection between the plunger body 4 and the trapezoidal groove 5, so that the plunger body 4 and the trapezoidal groove 5 will not be separated, and also comprises: A fixed disk 10 is fixedly arranged on the inner wall at one end of the hollow shaft 2, a square plug rod 11 is fixedly arranged in the middle of the fixed disk 10, a square slot 12 is opened at one end of the core shaft 1 for plugging with one end of the square plug rod 11, a driving connection disk 13 is fixedly arranged on the end of the square plug rod 11 away from the core shaft 1, a hydraulic cylinder connector 14 is fixedly arranged on the end of the core shaft 1 away from the driving connection disk 13, the hydraulic cylinder system of the winder is started, and the hydraulic cylinder system accurately pulls or pushes the hydraulic cylinder connector 14 according to the instructions, and as the hydraulic cylinder connector 14 moves, the core shaft 1 connected thereto moves smoothly in a straight line inside the hollow shaft 2, and when the core shaft 1 moves, the limit rod 16 at the bottom of the trapezoidal groove 5 will accurately pull down or push up the plunger body 4 according to the moving direction of the core shaft 1, and the plunger body 4, as a transmission component, pulls the fan plate 3 toward the core shaft 1, or pushes the fan plate 3 away from the core shaft 1 according to the action of the limit rod 16.

[0021] A plurality of pressure detection mechanisms 6 are respectively arranged on the surfaces of a plurality of sector plates 3, and are used to detect the extrusion force between the plurality of sector plates 3 and the hot-rolled coil. The pressure detection mechanism 6 includes a fixed sleeve 61 fixedly arranged inside the sector plate 3. The top of the plunger body 4 and the inner side surface of the sector plate 3, as well as the fixed sleeve 61 and the inner side surface of the sector plate 3, are fixedly connected by bolts, so that the top of the plunger body 4 and the sector plate 3, as well as the fixed sleeve 61 and the sector plate 3 are detachable. When the sector plate 3 needs to be replaced due to severe wear, the sector plate 3 can be directly disassembled, and the pressure detection mechanism 6 can be removed at the same time. 6 is disassembled and removed together; an extrusion head 62 is arranged inside the fixed sleeve 61, and a sliding sealing sleeve 63 is arranged between the extrusion head 62 and the fixed sleeve 61, one end of the extrusion head 62 passes through the interior of the sector plate 3 and extends outward, an elastic telescopic rod 64 is fixedly arranged inside the fixed sleeve 61, and a high-temperature ceramic pressure sensor 65 which is arranged in contact with one end of the extrusion head 62 is fixedly arranged at the moving end of the elastic telescopic rod 64. The high-temperature ceramic pressure sensor 65 adopts high-temperature ceramic material to make sensitive elements. The ceramic material has a stable structure and reliable performance in an environment above 950°C, and can accurately measure pressure. The high-temperature ceramic pressure sensor 65 is not affected by high temperature. During the winding process, the hot-rolled coil will contact the extrusion head 62 on the surface of the fan-shaped plate 3, so that the extrusion head 62 is pressed into the interior of the fixed sleeve 61 under the action of external force. At the same time, the extrusion head 62 pushes the high-temperature ceramic pressure sensor 65 downward, and the high-temperature ceramic pressure sensor 65 can indirectly detect the extrusion force of the hot-rolled coil on the fan-shaped plate 3; an overpressure frequency counting mechanism 15 is provided inside the fixed sleeve 61, and the overpressure frequency counting mechanism 15 includes a touch switch 151 fixedly arranged inside the fixed sleeve 61, and the touch switch 151 is The contact head can be set in contact with the extrusion head 62, and the inner wall of the fixed sleeve 61 is fixed with a pulse counter 152, a wireless communication module 153 and a battery 154. The touch switch 151 is electrically connected to the pulse counter 152, and the pulse counter 152, the wireless communication module 153 and the battery 154 are all electrically connected to the PLC controller 9. The extrusion head 62 will squeeze the touch head of the touch switch 151, so that the touch head is pressed into the interior of the touch switch 151, so that the touch switch 151 sends a pulse signal, and the pulse counter 152 completes a counting action after receiving the pulse signal.

[0022] The lubricant spraying mechanism 7 is arranged between one end of the core shaft 1 and the plurality of sector plates 3, and is used for lubricating and cooling the surfaces of the plurality of sector plates 3. The lubricant spraying mechanism 7 comprises a high temperature resistant elastic rubber tube 71 fixedly arranged between the hydraulic cylinder connector 14 and the plurality of sector plates 3. The high temperature resistant elastic rubber tube 71 has strong elasticity and temperature resistance. When the sector plates 3 move, the high temperature resistant elastic rubber tube 71 will freely expand and contract, and the flow of lubricant is not blocked. The plurality of sector plates 3 and the hydraulic cylinder connector 14 both adopt a hollow structure, and the outer surface of the plurality of sector plates 3 is provided with a plurality of evenly distributed spray holes 72. A liquid supply pipe 73 is fixedly provided on one side of the hydraulic cylinder connecting head 14, and a lubricant rotary joint 74 is fixedly provided on one end of the liquid supply pipe 73. The lubricant rotary joint 74 is connected to an external lubricant pump body. The walls of multiple high-temperature resistant elastic rubber tubes 71 are each provided with an electromagnetic valve 75. Starting the lubricant pump body can pass lubricant into the lubricant rotary joint 74 and the liquid supply pipe 73. After the lubricant enters the interior of the hydraulic cylinder connecting head 14, it is discharged into the interior of the fan plate 3 through the liquid supply pipe 73, and finally, it is sprayed outward through multiple spray holes 72 on the surface of the fan plate 3 and flows between the hot-rolled coil and the fan plate 3.

[0023] The reel diameter measuring mechanism 8 is fixedly arranged on the outer wall of the hollow shaft 2, and the pulling end of the reel diameter measuring mechanism 8 is fixedly connected to the inner side surface of one of the sector plates 3. The reel diameter measuring mechanism 8 includes a high temperature resistant measuring box body 81 fixedly arranged on the outer wall of the hollow shaft 2. The high temperature resistant measuring box body 81 is made of ceramic fiber. Ceramic fiber is a commonly used high temperature heat insulation material, such as zirconium-containing ceramic fiber, to avoid the influence of high temperature conduction on its internal components during the process of winding the hot rolled coil. A measuring resistance rod 82 is fixedly arranged in the interior of the high temperature resistant measuring box body 81. A measuring conductive sleeve 83 is slidably arranged on the rod wall of the measuring resistance rod 82. A sliding block 84 is fixedly arranged on the outer wall of the measuring conductive sleeve 83, and both sides of the sliding block 84 are in contact with the high temperature resistant measuring box body 81. The inner walls on both sides are slidingly arranged, two reset springs 85 are symmetrically fixed between one side of the sliding block 84 and the inner wall of the high-temperature resistant measuring box body 81, and a pulling rope 86 is fixedly arranged on the other side of the sliding block 84, and the pulling rope 86 extends to the outside of the high-temperature resistant measuring box body 81 at one end away from the sliding block 84, and one end of the pulling rope 86 is fixedly connected to the inner side surface of the fan-shaped plate 3. When the fan-shaped plate 3 moves, the external force at one end of the pulling rope 86 is reduced or increased, so as to adjust the moving distance of the measuring conductive sleeve 83 on the measuring resistor rod 82. When the fan-shaped plate 3 moves inward, the reset spring 85 applies an elastic force to the sliding block 84 to move to the left. When the fan-shaped plate 3 moves outward, the sliding block 84 overcomes the elastic force of the reset spring 85 and moves to the right.

[0024] The PLC controller 9 is fixedly arranged on the side wall of the coiler, and the pressure detection mechanism 6, the lubricant spraying mechanism 7 and the roll diameter measuring mechanism 8 are all electrically connected to the PLC controller 9.

[0025] The operating principle of the present invention is described as follows: the staff first installs the drive connection plate 13 and the drive shaft on the coiler, and fixes them by bolt connection. Then, the hydraulic cylinder connector 14 is installed with the hydraulic cylinder system, and fixed by connecting with the hydraulic rotary joint. This can achieve sealed conveying and hydraulic transmission, prevent fluid leakage, and ensure the normal operation of the hydraulic cylinder system. At the same time, it does not affect the rotation of the core shaft 1. During the installation of the hydraulic rotary joint, the liquid supply pipe 73 passes through the interior of the hydraulic rotary joint and is connected to the external lubricant pump body through the lubricant rotary joint 74, and the installation is completed. Before the hot-rolled coil is coiled, the staff must strictly follow the customer's order information and product standards to accurately determine the final use and specification requirements of the hot-rolled coil. Different application scenarios have different requirements for the coiling diameter of the hot-rolled coil. Taking the construction industry as an example, in order to consider the convenience of transportation and the efficiency of on-site construction, the hot-rolled coils used in this industry usually need to be controlled within a specific diameter range. The appropriate diameter can ensure that the coils will not be restricted due to excessive size during transportation, and it is also easy to carry and install at the construction site. For the automotive manufacturing field, due to its extremely delicate and complex subsequent processing technology, the diameter accuracy requirements for hot-rolled coils are extremely high. The precise coiling diameter can ensure that the coils are perfectly matched with the molds and equipment in subsequent stamping, welding and other processes; After clarifying the winding diameter requirement, the staff starts the hydraulic cylinder system of the coiler by manually operating the PLC controller 9. The hydraulic cylinder system, as the power source for adjusting the entire winding diameter, can accurately pull or push the hydraulic cylinder connector 14 according to the command. As the hydraulic cylinder connector 14 moves, the mandrel 1 connected thereto moves linearly smoothly inside the hollow shaft 2. When the mandrel 1 moves, the limit rod 16 at the bottom of the trapezoidal groove 5 will accurately pull down or push the plunger body 4 upward according to the moving direction of the mandrel 1. The plunger body 4, as a transmission component, pulls the fan plate 3 toward the mandrel 1 or pushes the fan plate 3 away from the mandrel 1 according to the action of the limit rod 16. Since a plunger body 4 is independently arranged between each fan plate 3 and the mandrel 1, this design ensures that during the movement of the mandrel 1, each fan plate 3 can move synchronously and stably. Through the coordinated action of each fan plate 3, the diameter of the reel can be accurately adjusted to fully meet the predetermined hot-rolled coil winding diameter requirements. During the process of adjusting the diameter of the reel, multiple fan-shaped plates 3 move synchronously, and one of the fan-shaped plates 3 is connected to one end of the pulling rope 86. When the fan-shaped plate 3 moves in the direction toward the core shaft 1, the external force of the fan-shaped plate 3 acting on one end of the pulling rope 86 decreases. When the external force of the pulling rope 86 decreases, the elastic force applied by the reset spring 85 to the sliding block 84 causes the sliding block 84 to move to the left inside the high-temperature resistant measuring box body 81. At the same time, the measuring conductive sleeve 83 moves to the left on the measuring resistor rod 82, causing the resistance value of the measuring resistor rod 82 connected to the loop to decrease. Since the measuring resistor rod 82 is connected to the loop, measurement circuits are set at both ends, and the measuring circuits measure the current signals at both ends of the measuring resistor rod 82. The signal is amplified and filtered, and then sent to the PLC controller 9 through the wireless communication module 153. After receiving the feedback electrical signal, the internal program of the PLC controller 9 can set the linear proportional correspondence between the current value and the measured moving distance of the conductive sleeve 83 through programming. For example, within the range of 30 mA to 40 mA, the PLC controller 9 will display on the display that the distance of the conductive sleeve 83 moving to the left is 0-15 mm, and the moving distance of the fan plate 3 toward the core shaft 1 can be indirectly measured. When the fan plate 3 moves away from the core shaft 1, the fan plate 3 will act outward to pull one end of the rope 86, so that the sliding block 84 overcomes the elastic force of the reset spring 85 and moves to the right. At the same time, The measuring conductive sleeve 83 moves to the right on the measuring resistor rod 82, so that the resistance value of the measuring resistor rod 82 connected to the loop increases. The internal program of the PLC controller 9 again sets the linear proportional correspondence between the current value and the moving distance of the measuring conductive sleeve 83 through programming. For example, within the range of 30 mA to 20 mA, the PLC controller 9 measures the distance of the conductive sleeve 83 moving to the right as 0-15 mm, and indirectly measures the moving distance of the sector plate 3 away from the core shaft 1, so as to measure the distance of the sector plate 3 moving inward or outward, and then add the outer radius of the hollow shaft 2 and the thickness of the sector plate 3 to the moving distance of the sector plate 3 (the outer radius of the hollow shaft 2 and the thickness of the sector plate 3 are both fixed values). The data finally obtained is the winding diameter of the roll (the common range is generally between 500-800mm). The staff sets the threshold value in advance inside the PLC controller 9 by analyzing the diameter of the roll. Generally, the larger the diameter of the hot rolling coiler roll, the greater the extrusion pressure between the hot rolling coil and the fan plate 3, and the greater the wear tendency. On the contrary, the smaller the diameter of the hot rolling coiler roll, the smaller the wear tendency. When the roll diameter is large, the staff appropriately lowers the set threshold value so as to timely discover the pressure change that may cause excessive wear and start the lubrication protection measures in advance. On the contrary, when the diameter of the hot rolling coiler roll is small, the set threshold value can be appropriately increased to slow down the start of the lubrication protection measures. When the hot-rolled coil needs to be wound, the staff manually operates the PLC controller 9 to start the coiler, so that the drive shaft of the coiler rotates and drives the core shaft 1 to rotate. Since the core shaft 1, the hollow shaft 2 and the multiple fan-shaped plates 3 are arranged as one body, they can realize synchronous rotation and wind the hot-rolled coil on the surface of the multiple fan-shaped plates 3. In the process of winding, the hot-rolled coil will contact the extrusion head 62 on the surface of the fan-shaped plate 3, so that the extrusion head 62 is pressed into the interior of the fixed sleeve 61 under the action of external force. At the same time, the extrusion head 62 pushes the high-temperature ceramic pressure sensor 65 downward, so that the high-temperature ceramic pressure sensor 65 overcomes the elastic force of the elastic telescopic rod 64 and moves downward. At this time, the high-temperature ceramic pressure sensor 65 can indirectly detect the impact of the hot-rolled coil on the fan-shaped plate 3. The high temperature ceramic pressure sensor 65 sends the detected pressure value to the PLC controller 9 through the wireless communication module 153 (the wireless communication module 153 adopts a wireless Bluetooth transmitting module, and the PLC controller 9 is internally provided with a wireless Bluetooth receiving module corresponding to the wireless Bluetooth module). When the pressure value detected by the high temperature ceramic pressure sensor 65 reaches the threshold value preset in the PLC controller 9, the PLC controller 9 will immediately start the lubricant pump body, and the lubricant pump body can pass lubricant (synthetic high boiling point lubricant, so that the lubricant will not be evaporated due to high temperature) into the lubricant rotary joint 74 and the liquid supply pipe 73, and the lubricant enters the hydraulic cylinder connector 14. After entering the interior of the fan-shaped plate 3, it is discharged into the interior of the fan-shaped plate 3 through the liquid supply pipe 73, and finally, it is sprayed outward through the multiple spray holes 72 on the surface of the fan-shaped plate 3 and flows between the hot-rolled coil and the fan-shaped plate 3. Since the multiple spray holes 72 are arranged on one side of the surface of the fan-shaped plate 3, with the high-speed positive rotation of the core shaft 1, the hollow shaft 2 and the multiple fan-shaped plates 3, the liquid flowing out of the surface of the fan-shaped plate 3 has a certain mass. According to Newton's first law, an object has the inertia to maintain its original state of motion. Under high-speed rotation, the inertia of the liquid makes it tend to move away from the axis in the tangential direction. This tendency is manifested as centrifugal force, which can better and evenly spread the lubricant between the hot-rolled coil and the fan-shaped plate 3 by virtue of the rotational force. Since a pressure detection mechanism is arranged on the surface of each fan-shaped plate 3 6. During the winding process, the extrusion force of the hot-rolled coil on the surface of each fan-shaped plate 3 is different. When the extrusion force on the fan-shaped plate 3 reaches the threshold, the solenoid valve 75 is correspondingly opened through the PLC controller 9. In addition, the other fan-shaped plates 3 that have not reached the threshold do not need to be connected to the solenoid valve 75. The lubricant effectively reduces the friction coefficient between the hot-rolled coil and the fan-shaped plate 3, which helps to reduce the wear of the equipment and extend the service life. At the same time, it can also make the winding process smoother and avoid winding defects caused by excessive friction, such as surface scratches and wrinkles. In addition, the lubricant can take away some heat and play a cooling role, which helps to reduce the temperature of the coil and the fan-shaped plate 3, prevent material performance changes and equipment deformation caused by excessive temperature, and extend the service life; When the pressure value detected by the high-temperature ceramic pressure sensor 65 reaches the threshold value (indicating that the extrusion force on the sector plate 3 is too large, causing friction and wear), the extrusion head 62 will squeeze the touch head of the touch switch 151, so that the touch head is pressed into the interior of the touch switch 151, and the touch head overcomes the elastic force of the elastic element and moves toward the interior of the touch switch 151. As the touch head moves, the moving contact connected to it also moves. When the touch head is pressed to a certain position, the moving contact contacts the static contact, thereby turning on the circuit. This conduction state will generate an electrical signal change, which can be received by the pulse counter 152 and recognized as a pulse signal. The pulse counter 152 completes a counting after receiving the pulse signal. The pulse counter 152 then sends the counting result to the PLC controller 9 through the wireless communication module 153 (the wireless communication module 153 adopts a wireless Bluetooth transmitting module, and the PLC controller 9 is internally provided with a wireless Bluetooth receiving module corresponding to the wireless Bluetooth module). The PLC controller 9 will display a counting action on the display, so as to count the frequency of each sector plate 3 being subjected to greater extrusion wear. When the counting result reaches a certain value (for example, 100 times), it is very likely to indicate that the sector plate 3 at this position is more worn and there is a higher risk of damage. The built-in alarm of the PLC controller 9 is activated to remind the staff to inspect the sector plate 3 at this position.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hot rolling coiler reel, comprising a mandrel (1), a hollow shaft (2), a plurality of sector plates (3), and a plunger body (4) arranged between the mandrel (1) and the plurality of sector plates (3), wherein the shaft wall of the mandrel (1) is provided with a trapezoidal groove (5), the top of the plunger body (4) is fixedly connected to the inner wall of the sector plate (3), and the bottom of the plunger body (4) is slidably arranged at the bottom of the trapezoidal groove (5), characterized in that: Also includes: A plurality of pressure detection mechanisms (6) are respectively arranged on the surfaces of the plurality of sector plates (3) and are used to detect the extrusion pressure between the plurality of sector plates (3) and the hot-rolled coil; a lubricant spraying mechanism (7), arranged between one end of the core shaft (1) and the plurality of sector plates (3), and used for lubricating and cooling the surfaces of the plurality of sector plates (3); A roll diameter measuring mechanism (8) is fixedly arranged on the outer wall of the hollow shaft (2), and a pulling end of the roll diameter measuring mechanism (8) is fixedly connected to the inner side surface of one of the sector plates (3); A PLC controller (9) is fixedly mounted on a side wall of the coiler, and the pressure detection mechanism (6), the lubricant spraying mechanism (7) and the coil diameter measuring mechanism (8) are all electrically connected to the PLC controller (9).

2. A hot rolling coiler reel according to claim 1, characterized in that: A fixing plate (10) is fixedly provided on the inner wall of one end of the hollow shaft (2), a square plug rod (11) is fixedly provided in the middle of the fixing plate (10), one end of the mandrel (1) is provided with a square slot (12) which is plugged into and matched with one end of the square plug rod (11), one end of the square plug rod (11) away from the mandrel (1) is fixedly provided with a driving connection plate (13), and one end of the mandrel (1) away from the driving connection plate (13) is fixedly provided with a hydraulic cylinder connector (14).

3. The hot rolling coiler reel according to claim 1, characterized in that: The pressure detection mechanism (6) comprises a fixed sleeve (61) fixedly arranged inside the sector plate (3), an extrusion head (62) being arranged inside the fixed sleeve (61), and a sliding sealing sleeve (63) being arranged between the extrusion head (62) and the fixed sleeve (61), one end of the extrusion head (62) passing through the interior of the sector plate (3) and extending outward, an elastic telescopic rod (64) being fixedly arranged inside the fixed sleeve (61), and a high-temperature ceramic pressure sensor (65) being arranged in contact with one end of the extrusion head (62) being fixedly arranged at the movable end of the elastic telescopic rod (64), and an overpressure frequency counting mechanism (15) being arranged inside the fixed sleeve (61).

4. A hot rolling coiler reel according to claim 3, characterized in that: The overpressure frequency counting mechanism (15) comprises a touch switch (151) fixedly arranged inside the fixed sleeve (61); a touch head of the touch switch (151) can be arranged in contact with the extrusion head (62); a pulse counter (152), a wireless communication module (153) and a storage battery (154) are fixedly arranged on the inner wall of the fixed sleeve (61); the touch switch (151) is electrically connected to the pulse counter (152); and the pulse counter (152), the wireless communication module (153) and the storage battery (154) are all electrically connected to the PLC controller (9).

5. The hot rolling coiler reel according to claim 2, characterized in that: The lubricant spraying mechanism (7) comprises a high temperature resistant elastic rubber tube (71) fixedly arranged between the hydraulic cylinder connecting head (14) and the plurality of fan-shaped plates (3); the plurality of fan-shaped plates (3) and the hydraulic cylinder connecting head (14) are both hollow structures; the outer surfaces of the plurality of fan-shaped plates (3) are provided with a plurality of evenly distributed spray holes (72); a liquid supply pipe (73) is fixedly arranged on one side of the hydraulic cylinder connecting head (14); and a lubricant rotary joint (74) is fixedly arranged on one end of the liquid supply pipe (73); the lubricant rotary joint (74) is connected to an external lubricant pump body; and the tube walls of the plurality of high temperature resistant elastic rubber tubes (71) are each provided with an electromagnetic valve (75).

6. The hot rolling coiler reel according to claim 1, characterized in that: The reel diameter measuring mechanism (8) comprises a high temperature resistant measuring box body (81) fixedly arranged on the outer wall of the hollow shaft (2), a measuring resistance rod (82) being fixedly arranged in the interior of the high temperature resistant measuring box body (81), a measuring conductive sleeve (83) being slidably arranged on the rod wall of the measuring resistance rod (82), a sliding block (84) being fixedly arranged on the outer wall of the measuring conductive sleeve (83), and two sides of the sliding block (84) being slidably arranged on the inner walls of the two sides of the high temperature resistant measuring box body (81), two return springs (85) being symmetrically fixedly arranged between one side of the sliding block (84) and the inner wall of the high temperature resistant measuring box body (81), and a pulling rope (86) being fixedly arranged on the other side of the sliding block (84), one end of the pulling rope (86) away from the sliding block (84) extending to the outside of the high temperature resistant measuring box body (81), and one end of the pulling rope (86) being fixedly connected to the inner side surface of the sector plate (3).

7. The hot rolling coiler reel according to claim 1, characterized in that: The bottom of the trapezoidal groove (5) is an inclined surface, the bottom of the plunger body (4) matches the bottom of the trapezoidal groove (5), a limiting rod (16) is fixedly provided inside the trapezoidal groove (5), and the plunger body (4) is slidably connected to the limiting rod (16).

8. The hot rolling coiler reel according to claim 3, characterized in that: The top of the plunger body (4) and the inner side surface of the sector plate (3), as well as the fixing sleeve (61) and the inner side surface of the sector plate (3), are fixedly connected by bolts.

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