Heat preservation cover device for air cooling line

Abstract

The utility model relates to an air cooling line heat preservation cover device which comprises a conveying roller way, a base, a plurality of heat preservation covers and a control unit, the conveying roller way is arranged on the base, the heat preservation covers are arranged above the conveying roller way, each protection cover is provided with a lever, a balance weight, an air cylinder and an electromagnetic valve, one end of each lever is connected with the balance weight, and the other end of each lever is connected with the control unit. The other end of the lever is connected with the protective cover, a supporting point of the lever is connected with an air cylinder rod, the bottom of each air cylinder is fixedly connected with the base, and the electromagnetic valve is connected with the control unit and used for driving the air cylinder rod to stretch out or retract. The lifting device has the advantages that one end of the lever is connected with the counter weight, the other end of the lever is connected with the protective cover, a supporting point of the lever is connected with the cylinder rod, the electromagnetic valve drives the cylinder to stretch out and draw back to achieve lifting of the heat preservation cover, the structure is simple, the occupied area is small, the equipment failure rate is reduced, production safety is guaranteed, and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for steel rolling production, in particular to an air-cooling line heat preservation cover device. Background Technique

[0002] At present, in high-speed wire rod production, the Stelmor cooling line is usually adopted. For steel grades that need slow cooling, delayed controlled cooling is required. Therefore, the cooling line must have good heat preservation and slow cooling effects. The heat preservation cover device is an important equipment to achieve this process requirement. The heat preservation cover is covered above the conveying roller table, effectively playing the role of heat preservation and slow cooling. The heat preservation cover of the cold line in a certain steel mill high-speed wire production workshop uses an electric push rod to drive the opening and closing of the heat preservation cover, and mechanical jamming faults are very likely to occur during use, and it is difficult to recover from the faults, affecting the production progress. Summary of the Invention

[0003] The purpose of the utility model is to provide an air-cooling line heat preservation cover device, which uses a solenoid valve to drive the expansion and contraction of a cylinder to realize the lifting of the heat preservation cover, reducing the failure rate of the heat preservation cover during operation, saving time and effort.

[0004] To achieve the above purpose, the utility model is realized through the following technical solutions:

[0005] An air-cooling line heat preservation cover device includes a conveying roller table, a base, a plurality of heat preservation covers, and a control unit. The conveying roller table is arranged on the base, and a plurality of heat preservation covers are arranged above the conveying roller table. Each protection cover is provided with a lever, a counterweight, a cylinder, and a solenoid valve. One end of the lever is connected to the counterweight, the other end of the lever is connected to the protection cover, the support point of the lever is connected to the cylinder rod, the bottom of each cylinder is fixedly connected to the base, the solenoid valve is connected to the control unit, and the solenoid valve is used to drive the cylinder rod to extend or retract.

[0006] The air inlets 1 and 2 on both sides of the cylinder are respectively connected to the working air ports 1 and 2 of the solenoid valve. A throttle valve is arranged between the working air port 1 of the solenoid valve and the air inlet 1 of the cylinder, and the throttle valve is connected in parallel with a check valve.

[0007] The control unit includes a CPU module, a communication module 1, and a communication module 2. The CPU module, the communication module 1, and the communication module 2 are connected through ports. The communication module 2 is used to connect to the PLC master station, and the solenoid valve is connected to the CPU module through a digital quantity output port.

[0008] The control unit further includes a touch screen, and the communication module 1 is connected to the touch screen through a port.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. One end of the lever is connected to the counterweight, the other end of the lever is connected to the protective cover, the support point of the lever is connected to the cylinder rod, and the solenoid valve drives the cylinder to expand and contract to realize the lifting of the heat preservation cover. The structure is simple, the floor area is small, the equipment failure rate is reduced, the production safety is guaranteed, and the maintenance cost is reduced;

[0011] 2. Maintenance personnel can view the on / off status of the solenoid valve and the status information of the solenoid valve reaching the limit of opening and closing to the limit at any time through the touch screen, which shortens the maintenance time, is convenient for fault query, and saves time and effort;

[0012] 3. Transmit the steel grade signal of the PLC master station to the PLC remote station. The operator performs the extension / retraction operation on the cylinder through the solenoid valve on / off button of the touch screen according to the steel grade signal to realize the opening / closing of the heat preservation cover. The operation is convenient and easy to promote. Brief Description of the Drawings

[0013] Figure 1 It is the electrical principle schematic diagram of the heat preservation cover device of the air-cooled line.

[0014] Figure 2 It is the structural schematic diagram of the heat preservation cover device of the air-cooled line.

[0015] Figure 3 It is the principle schematic diagram of the cylinder and the solenoid valve.

[0016] In the figure: 1 - heat preservation cover; 2 - conveying roller table; 3 - base; 4 - cylinder; 5 - cylinder rod; 6 - counterweight; 7 - solenoid valve; 8 - air inlet; 9 - throttle valve; 10 - check valve; 11 - air source; 12 - second air inlet; 13 - first air inlet; 14 - second working air port; 15 - first working air port; 16 - lever. Detailed Embodiment

[0017] The following will describe the present invention in detail with reference to the drawings of the specification, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0018] The following embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation manners and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments. The methods used in the following embodiments are all conventional methods unless otherwise specified.

[0019]

Embodiment 1

[0020] The workshop includes several Stelmor air-cooling lines. Each Stelmor air-cooling line has 400 conveying roller beds 2. Above the 400 conveying roller beds 2, there are eleven heat preservation covers 1. The names of the eleven heat preservation covers 1 are respectively Cover One, Cover Two... Cover Eleven. Each heat preservation cover is driven by an electric push rod. The existing electric push rod is removed, and each heat preservation cover is driven by a solenoid valve 7 to drive the corresponding cylinder 4. The heat preservation cover 1 is lifted and lowered by the expansion and contraction of the cylinder 4. See Figures 1 to 3 , A heat preservation cover 1 device for an air-cooling line, including a conveying roller bed 2, a base 3, a heat preservation cover 1, and a control unit. The conveying roller bed 2 is arranged on the base 3. The conveying roller bed 2 is used to convey the loose coils passing through the wire laying machine. Above the conveying roller bed 2, there are eleven heat preservation covers 1. Each protection cover 1 is provided with a lever 16, a counterweight 6, a cylinder 4, and a solenoid valve 7. One end of the lever 16 is connected to the counterweight 6, and the other end of the lever 16 is connected to the protection cover 1. The support point of the lever 16 is connected to the cylinder rod 5. The configuration 6 selects a 150*150 square billet. The bottom of each cylinder 4 is fixedly connected to the base 3. Each solenoid valve 7 is connected to the control unit. The solenoid valve 7 is used to drive the corresponding cylinder rod 5 to extend or retract.

[0021] Taking one of the heat preservation covers as an example for description, the rest of the heat preservation covers are the same as this. See Figure 2 , See Figure 3 , The air inlet one 13 and the air inlet two 12 on both sides of the cylinder 4 are respectively connected to the working air port one 15 and the working air port two 14 of the solenoid valve 7. A throttle valve 9 is arranged between the working air port one 15 of the solenoid valve 7 and the air inlet one 15 of the cylinder 4. The throttle valve 9 is connected in parallel with a check valve 10. The air inlet 8 of the solenoid valve 7 is connected to the air source 11. The solenoid valve 7 selects a two-position five-way solenoid valve. The working state of the cylinder 4 is controlled by the two-position five-way solenoid valve. When the working air port one 15 of the two-position five-way solenoid valve intakes air, the cylinder rod 5 extends. When the working air port two 14 of the two-position five-way solenoid valve intakes air, the cylinder rod 5 retracts. The structure of the heat preservation cover 1 device for the air-cooling line is simple, occupies a small area, is easy to maintain, and reduces the equipment failure rate.

[0022]

Example 2

[0023] In this embodiment, an air-cooled line insulation cover 1 device is the same as that in Embodiment 1, and a control unit is added on this basis. The control unit is a PLC remote station, and the PLC remote station includes a CPU module, a communication module 1, a communication module 2, and a touch screen. The CPU module, the communication module 1, and the communication module 2 are connected through ports. The communication module 2 is used to connect to the PLC master station to realize data information exchange between the PLC remote station and the PLC master station. The steel grade signal is transmitted from the PLC master station to the PLC remote station. The communication module 1 and the touch screen are connected through ports. There are on / off buttons for eleven solenoid valves 7 on the touch screen. Each solenoid valve 7 is connected to the CPU module through a digital quantity output port. Each solenoid valve 7 includes an open-to-limit and a closed-to-limit. The CPU module is connected to the open-to-limit and the closed-to-limit of each solenoid valve 7 through digital quantity input ports respectively; the touch screen records the on / off action status of the solenoid valve 7 and the status information of the open-to-limit and the closed-to-limit of the solenoid valve 7. If the on / off action of the solenoid valve 7 and the open-to-limit and the closed-to-limit of the solenoid valve 7 do not act beyond the set time, there is an alarm prompt, which is convenient for maintenance personnel to check at any time, convenient for fault query, shortening the maintenance time, saving time and effort.

[0024] Working process:

[0025] Before rolling the coiled rod of the slow-cooling steel grade, according to the steel grade information, the operator operates the corresponding cylinder to extend / retract through the solenoid valve on / off button on the touch screen. For example, when the steel grade information transmitted from the PLC master station to the PLC remote station is the steel grade for rolling welding wire, the operator operates the on / off buttons of solenoid valve 4 to solenoid valve 8 on the touch screen to retract cylinders 4 to 8, closing insulation cover 4 to protection cover 8, so as to achieve the phase transformation requirement for slow cooling of the wire rod. Under the condition of full-process control, when the steel grade is about to leave the furnace, an instruction is sent to the PLC through the touch screen to make the corresponding solenoid valve act, realizing the opening / closing of the insulation cover.

[0026] In the utility model, one end of a lever is connected to a counterweight, the other end of the lever is connected to a protection cover, the support point of the lever is connected to a cylinder rod, and the solenoid valve drives the cylinder to expand and contract to realize the lifting of the insulation cover. The structure is simple, the floor area is small, the equipment failure rate is reduced, the production safety is ensured, and the maintenance cost is reduced; the maintenance personnel can view the on / off status of the solenoid valve and the status information of the open-to-limit and the closed-to-limit of the solenoid valve at any time through the touch screen, shortening the maintenance time, convenient for fault query, saving time and effort; the steel grade signal of the PLC master station is transmitted to the PLC remote station, and the operator operates the cylinder to extend / retract through the solenoid valve on / off button on the touch screen according to the steel grade signal, realizing the opening / closing of the insulation cover, with convenient operation and easy to promote.

Claims

1. A wind-cooled line heat preservation cover device, characterized in that: It includes a conveyor roller, a base, several thermal insulation covers, and a control unit. The base is provided with a conveyor roller, and several thermal insulation covers are provided above the conveyor roller. Each protective cover is provided with a lever, a counterweight, a cylinder, and a solenoid valve. One end of the lever is connected to the counterweight, and the other end of the lever is connected to the protective cover. The supporting point of the lever is connected to the cylinder rod, and the bottom of each cylinder is fixedly connected to the base. The solenoid valve is connected to the control unit, and the solenoid valve is used to drive the cylinder rod to extend or retract.

2. The air-cooled wire heat preservation cover device according to claim 1, characterized in that: The air inlet 1 and the air inlet 2 on both sides of the cylinder are respectively connected to the working air inlet 1 and the working air inlet 2 of the solenoid valve. A throttle valve is arranged between the working air inlet 1 of the solenoid valve and the air inlet 1 of the cylinder. The throttle valve is connected in parallel with the one-way valve.

3. The air-cooled wire heat preservation cover device according to claim 1, characterized in that: The control unit includes a CPU module, a communication module 1 and a communication module 2. The CPU module, the communication module 1 and the communication module 2 are connected through ports. The communication module 2 is used to connect to the PLC master station. The solenoid valve is connected to the CPU module through a digital output port.

4. The air-cooled wire heat preservation cover device according to claim 3, characterized in that: The control unit also includes a touch screen, and the communication module 1 is connected to the touch screen via a port.

Images