Annealing device for stainless steel plate coil

Abstract

The utility model relates to the technical field of strip steel processing, in particular to an annealing device for a stainless steel plate coil. Comprising a preheating furnace, a heating furnace, a cooling furnace, two blocking mechanisms, a plurality of furnace rollers, a plurality of furnace roller disassembly and assembly mechanisms and a plurality of detection mechanisms. The preheating furnace, the heating furnace and the cooling furnace are sequentially arranged; a plurality of furnace rollers are arranged on the inner sides of the furnace bodies side by side; a plurality of furnace roller dismounting and mounting mechanisms are mounted on the furnace bodies; the two blocking mechanisms are symmetrically arranged, and each blocking mechanism comprises a first linear driving mechanism, a connecting frame and four baffles; a limiting roller is rotationally mounted on the baffle plate; the detection mechanism comprises a second linear driving mechanism and a distance measuring sensor installed on an output shaft of the second linear driving mechanism. According to the utility model, the quality detection of the furnace roller can be realized, the sealing performance of the positions among the furnace bodies is better, and the probability of deformation of the furnace roller can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of strip steel processing technology, and in particular to an annealing device for stainless steel sheet coils. Background Technology

[0002] Annealing of stainless steel sheet coils is usually carried out in an annealing furnace. Generally, an annealing furnace is mainly divided into a preheating section, a heating section, and a cooling section. The strip steel is moved in the annealing furnace through uncoiling equipment at both ends. There are furnace rollers in the middle of the uncoiling equipment at both ends to support the steel strip. The furnace rollers are distributed in the three working areas.

[0003] The furnace rolls are responsible for maintaining the tension of the strip steel in the furnace and preventing it from deviating. Generally, furnace rolls have good high-temperature resistance, but they will still deform under long-term high-temperature conditions. The deformation of the furnace rolls will affect the quality of the strip steel and cause warping defects. The furnace rolls are most likely to deform between the heating and cooling sections of the furnace. The furnace rolls located here deform much faster than other furnace rolls under the alternating action of heating and cooling. The existing solutions are only to measure the furnace rolls periodically, lacking effective monitoring methods. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing an annealing device for stainless steel sheet coils.

[0005] The technical solution of this utility model is an annealing device for stainless steel sheet coils, comprising:

[0006] The preheating furnace, heating furnace and cooling furnace are arranged in sequence. All furnace bodies are open, and multiple perforations are opened at the front and rear ends of the furnace bodies.

[0007] Multiple furnace rollers are arranged side by side on the inner side of multiple furnace bodies, and the furnace rollers move through two corresponding through holes; each of the multiple furnace bodies is equipped with a drive mechanism for driving the rotation of the multiple furnace rollers on the corresponding furnace body.

[0008] Multiple furnace roller disassembly and assembly mechanisms are installed on multiple furnace bodies, and each of the multiple furnace roller disassembly and assembly mechanisms is set up in a one-to-one correspondence with a multiple furnace roller.

[0009] Two symmetrically arranged blocking mechanisms are provided. Each blocking mechanism includes a first linear drive mechanism, a connecting frame, and four baffles. The first linear drive mechanism is mounted on any furnace body. The connecting frame is connected to the output shaft of the first linear drive mechanism. All four baffles are connected to the connecting frame. The four baffles are located on the outside of the cooling furnace, the outside of the preheating furnace, between the preheating furnace and the heating furnace, and between the heating furnace and the cooling furnace, respectively. Limiting rollers are rotatably mounted on the baffles.

[0010] Multiple detection mechanisms, including a second linear drive mechanism and a distance sensor mounted on the output shaft of the second linear drive mechanism, the second linear drive mechanism being mounted outside the preheating furnace or cooling furnace.

[0011] Preferably, the drive mechanism includes a power component, multiple splined sleeves, and multiple sets of transmission components. The multiple splined sleeves are rotatably mounted on the outer side of the furnace body on the corresponding side. The inner side of the splined sleeve is provided with a keyway. One end of the furnace roller adjacent to the splined sleeve is provided with a key that matches the keyway. Adjacent splined sleeves are connected by transmission components. The transmission components include a chain and two sprockets. The two sprockets are respectively mounted on two adjacent splined sleeves and are connected by chain transmission. The power component includes a geared motor, a gear, and a gear ring. The geared motor is mounted on the corresponding outer side of the furnace body. The gear is mounted on the output shaft of the geared motor. The gear ring is mounted on any splined sleeve and is meshed with the gear.

[0012] Preferably, the furnace roller disassembly and assembly mechanism includes a lower arc-shaped seat and an upper arc-shaped seat. The lower arc-shaped seat is fixedly installed on the outside of the corresponding furnace body, and the upper arc-shaped seat is located directly above the lower arc-shaped seat. An upper arc-shaped seat unloading assembly is installed between the upper arc-shaped seat and the corresponding furnace body. Arc-shaped grooves are opened on the inner walls of both the lower and upper arc-shaped seats, and a limit ring is provided on one end of the furnace roller adjacent to the furnace roller disassembly and assembly mechanism.

[0013] Preferably, the upper arc-shaped seat unloading assembly includes a fixed seat, a threaded rod, a knob, a guide rod, a spring, and a limiting block. The fixed seat is located above the corresponding upper arc-shaped seat and is connected to the outer wall of the corresponding furnace body. The threaded rod is threadedly connected to the fixed seat, and the knob is connected to the end of the threaded rod. The guide rod moves through the fixed seat, and its two ends are connected to the upper arc-shaped seat and the limiting block, respectively. The spring is sleeved on the upper part of the guide rod.

[0014] Preferably, the preheating furnace, heating furnace, and cooling furnace are all equipped with insulation layers.

[0015] Preferably, the diameter of the perforation is larger than the diameter of the furnace roller.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] 1. By setting multiple baffles, multiple furnace bodies can be isolated, reducing the exposed area of ​​each furnace body. This reduces airflow between two furnace bodies with large temperature differences, reduces heat loss inside the preheating and heating furnaces, and prevents rapid heating inside the cooling furnace. The spacing between the two corresponding upper and lower limit rollers is adjustable, which can adapt to the limiting work of rolls of different thicknesses and minimize the connection area between two adjacent furnace bodies.

[0018] 2. Multiple detection mechanisms can be set up to detect the deformation of multiple furnace rollers, so as to ensure processing quality.

[0019] 3. By setting the furnace rollers to an insert-type installation method, the furnace rollers can be easily replaced. Attached Figure Description

[0020] Figures 1-3 All of these are schematic diagrams of the structure of this utility model.

[0021] Figure 4 This is a cross-sectional view of the present invention.

[0022] Figure 5 This is a schematic diagram of the furnace roller structure in this utility model.

[0023] Figure 6 for Figure 1 A magnified schematic diagram of the structure at point A.

[0024] Figure 7 for Figure 2 A magnified schematic diagram of the structure at point B.

[0025] Reference numerals in the attached drawings: 1. Preheating furnace; 2. Heating furnace; 3. Cooling furnace; 4. Furnace roller; 41. Limiting ring; 42. Key; 5. Baffle; 6. Limiting roller; 7. First linear drive mechanism; 8. Connecting frame; 9. Perforation; 10. Splined sleeve; 11. Gear motor; 12. Gear; 13. Gear ring; 14. Sprocket; 15. Chain; 161. Lower arc-shaped seat; 162. Upper arc-shaped seat; 17. Fixed seat; 18. Threaded rod; 181. Knob; 19. Guide rod; 20. Spring; 21. Limiting block; 22. Second linear drive mechanism; 23. Distance sensor. Detailed Implementation

[0026] Example 1

[0027] like Figures 1-5 As shown in the figure, the annealing device for stainless steel sheet coils proposed in this embodiment includes a preheating furnace 1, a heating furnace 2, a cooling furnace 3, two barrier mechanisms, multiple furnace rollers 4, multiple furnace roller disassembly and assembly mechanisms, and multiple detection mechanisms.

[0028] The preheating furnace 1, heating furnace 2 and cooling furnace 3 are all equipped with insulation layers; the preheating furnace 1, heating furnace 2 and cooling furnace 3 are arranged in sequence, and all furnace bodies are open, with multiple perforations 9 at the front and rear ends of each furnace body; and each furnace body has a frame at its bottom.

[0029] Multiple furnace rollers 4 are arranged side by side on the inner side of multiple furnace bodies. Each furnace roller 4 moves through two corresponding through holes 9. The diameter of the through holes 9 is larger than the diameter of the furnace roller 4. This arrangement makes it easy to remove the deformed furnace roller 4. Each furnace body is equipped with a drive mechanism for rotating the multiple furnace rollers 4 on the corresponding furnace body. Each furnace body is also equipped with multiple furnace roller disassembly and assembly mechanisms, which are arranged one-to-one with the multiple furnace rollers 4.

[0030] Two blocking mechanisms are symmetrically arranged. The blocking mechanism includes a first linear drive mechanism 7, a connecting frame 8, and four baffles 5. The first linear drive mechanism 7 is installed on any furnace body. The connecting frame 8 is connected to the output shaft of the first linear drive mechanism 7. The four baffles 5 are all connected to the connecting frame 8. The four baffles 5 are located on the outside of the cooling furnace 3, the outside of the preheating furnace 1, between the preheating furnace 1 and the heating furnace 2, and between the heating furnace 2 and the cooling furnace 3, respectively. Limiting rollers 6 are rotatably installed on the baffles 5.

[0031] The detection mechanism includes a second linear drive mechanism 22 and a distance sensor 23 mounted on the output shaft of the second linear drive mechanism 22. The second linear drive mechanism 22 is mounted on the outside of the preheating furnace 1 or the cooling furnace 3. The first linear drive mechanism 7 and the second linear drive mechanism 22 are one of the following driving components: a cylinder, a hydraulic cylinder, or an electric push rod.

[0032] Specifically, in the technical solution, the preheating furnace 1, heating furnace 2, and cooling furnace 3 can all be referred to as furnace bodies. By setting multiple baffles 5, the multiple furnace bodies can be isolated from each other, reducing the exposed area of ​​each furnace body. This reduces airflow between two furnace bodies with large temperature differences, reduces heat loss inside the preheating furnace 1 and heating furnace 2, and prevents rapid heating inside the cooling furnace 3. Limiting rollers 6 are rotatably installed on the baffles 5 to avoid scratches caused by direct contact between the surface of the steel plate coil and the baffles 5. It should be noted that the limiting rollers 6 are designed to be detachable. Mounting seats are installed at both ends of the baffles 5, and rotating shafts are installed on the limiting rollers 6. Rotating shaft grooves are provided on both sides of the mounting seats for the rotating shafts to be inserted. The mounting seat on one side is fixedly connected to the baffle 5, while the mounting seat on the other side is detachably connected to the baffle 5 by screws.

[0033] After each annealing operation and once the furnace body has fully cooled, a quality inspection is performed on multiple furnace rollers using a set-up inspection mechanism. The furnace rollers can also be inspected during operation. If any furnace roller deformation is detected, the machine is immediately stopped. The second linear drive mechanism 22 drives the distance sensor 23 to a position below the furnace roller 4. It is important to note that during inspection, multiple baffles 5 move away from the furnace body. When a furnace roller 4 is bent or deformed, its deformed portion protrudes, obstructing the detection end of the distance sensor 23 during rotation. This causes a change in the detection signal of the distance sensor 23, which then feeds the signal back to the PLC controller. The distance measured by the distance sensor 23 is the distance between the distance sensor 23 and the deformed furnace roller 4. Based on the inspection data, the operator can determine the position of the deformed furnace roller 4 and then replace it. After replacing the furnace roller, another inspection is performed. This is because the area behind the deformed furnace roller 4 cannot be detected by the distance sensor 23 during the first inspection, until all furnace rollers 4 pass the inspection.

[0034] Example 2

[0035] like Figure 6 As shown, this embodiment proposes an annealing device for stainless steel sheet coils. Compared to Embodiment 1, in this embodiment, the driving mechanism includes a power component, multiple spline sleeves 10, and multiple sets of transmission components. The spline sleeves 10 are made of high heat insulation material, and the outer diameter of the spline sleeves 10 is larger than the diameter of the perforation 9. Multiple spline sleeves 10 are rotatably mounted on the outer side of the furnace body on the corresponding side. A keyway is provided on the inner side of the spline sleeves 10. A key 42 that matches the keyway is provided on one end of the furnace roller 4 adjacent to the spline sleeve 10. Two adjacent spline sleeves 10 are connected to the keyway. All spline sleeves 10 are connected by a transmission assembly, which includes a chain 15 and two sprockets 14. The two sprockets 14 are respectively mounted on two adjacent spline sleeves 10 and are connected by the chain 15. The power assembly includes a geared motor 11, a gear 12 and a gear ring 13. The geared motor 11 is mounted on the outside of the corresponding furnace body, the gear 12 is mounted on the output shaft of the geared motor 11, and the gear ring 13 is mounted on any spline sleeve 10 and is meshed with the gear 12.

[0036] Specifically, power transmission can be completed by aligning the key 42 on the furnace roller 4 with the keyway on the spline sleeve 10 and inserting it.

[0037] Example 3

[0038] like Figure 7As shown in the figure, the annealing device for stainless steel sheet coils proposed in this embodiment, compared with the second embodiment, the furnace roller disassembly and assembly mechanism in this embodiment includes a lower arc-shaped seat 161 and an upper arc-shaped seat 162. Both the lower arc-shaped seat 161 and the upper arc-shaped seat 162 are made of high heat insulation material. The lower arc-shaped seat 161 and the upper arc-shaped seat 162 form a ring structure. The outer diameter of the ring formed by them is larger than the diameter of the perforation 9. The lower arc-shaped seat 161 is fixedly installed on the outside of the corresponding furnace body. The upper arc-shaped seat 162 is located directly above the lower arc-shaped seat 161. An upper arc-shaped seat unloading assembly is installed between the upper arc-shaped seat 162 and the corresponding furnace body. Arc-shaped grooves are opened on the inner walls of both the lower arc-shaped seat 161 and the upper arc-shaped seat 162. A limit ring 41 is provided on one end of the furnace roller 4 adjacent to the furnace roller disassembly and assembly mechanism.

[0039] The upper arc-shaped seat unloading assembly includes a fixed seat 17, a threaded rod 18, a knob 181, a guide rod 19, a spring 20, and a limiting block 21. The fixed seat 17 is located above the corresponding upper arc-shaped seat 162 and is connected to the outer wall of the corresponding furnace body. The threaded rod 18 is threadedly connected to the fixed seat 17. The knob 181 is connected to the end of the threaded rod 18. The guide rod 19 moves through the fixed seat 17. The two ends of the guide rod 19 are connected to the upper arc-shaped seat 162 and the limiting block 21, respectively. The spring 20 is sleeved on the upper part of the guide rod 19.

[0040] Specifically, when disassembling the furnace roller 4, rotate the threaded rod 18 to move it away from the furnace roller 4. Under the elastic force of the spring 20, drive the upper arc-shaped seat 162 to move upward. At this time, the upper arc-shaped seat 162 moves away from the lower arc-shaped seat 161. Then lift the end of the furnace roller 4 upward so that the limiting ring 41 slowly moves out of the arc-shaped groove. Then the furnace roller 4 can be pulled out. In summary, the above disassembly structure is simplified and can be operated directly outside the furnace body.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An annealing apparatus for stainless steel sheet coils, characterized in that, include: The preheating furnace (1), heating furnace (2) and cooling furnace (3) are arranged in sequence. All furnace bodies are open, and multiple perforations (9) are opened at the front and rear ends of the furnace bodies. Multiple furnace rollers (4) are arranged side by side on the inner side of multiple furnace bodies. The furnace rollers (4) move through two corresponding through holes (9). Multiple furnace bodies are equipped with a drive mechanism for driving the multiple furnace rollers (4) on the corresponding furnace body to rotate. Multiple furnace roller disassembly and assembly mechanisms are installed on multiple furnace bodies, and the multiple furnace roller disassembly and assembly mechanisms are set one-to-one with the multiple furnace rollers (4); Two symmetrically arranged blocking mechanisms are provided. The blocking mechanism includes a first linear drive mechanism (7), a connecting frame (8), and four baffles (5). The first linear drive mechanism (7) is installed on any furnace body. The connecting frame (8) is connected to the output shaft of the first linear drive mechanism (7). The four baffles (5) are all connected to the connecting frame (8). The four baffles (5) are located on the outside of the cooling furnace (3), the outside of the preheating furnace (1), between the preheating furnace (1) and the heating furnace (2), and between the heating furnace (2) and the cooling furnace (3), respectively. Limiting rollers (6) are rotatably installed on the baffles (5). Multiple detection mechanisms, including a second linear drive mechanism (22) and a distance sensor (23) mounted on the output shaft of the second linear drive mechanism (22), the second linear drive mechanism (22) being mounted outside the preheating furnace (1) or the cooling furnace (3).

2. The annealing apparatus for stainless steel sheet coils according to claim 1, characterized in that, The drive mechanism includes a power component, multiple spline sleeves (10), and multiple sets of transmission components. The multiple spline sleeves (10) are rotatably mounted on the outer side of the furnace body on corresponding sides. A keyway is provided on the inner side of each spline sleeve (10). A key (42) that matches the keyway is provided on one end of the furnace roller (4) adjacent to the spline sleeve (10). Adjacent spline sleeves (10) are connected by a transmission component, which includes a chain (15) and two sprockets (14). The sprockets (14) are respectively installed on two adjacent splined sleeves (10). The two sprockets (14) are connected by a chain (15). The power assembly includes a geared motor (11), a gear (12) and a gear ring (13). The geared motor (11) is installed on the outside of the corresponding furnace body. The gear (12) is installed on the output shaft of the geared motor (11). The gear ring (13) is installed on any splined sleeve (10) and meshes with the gear (12).

3. The annealing apparatus for stainless steel sheet coils according to claim 2, characterized in that, The furnace roller assembly and disassembly mechanism includes a lower arc-shaped seat (161) and an upper arc-shaped seat (162). The lower arc-shaped seat (161) is fixedly installed on the outside of the corresponding furnace body. The upper arc-shaped seat (162) is located directly above the lower arc-shaped seat (161). An upper arc-shaped seat unloading assembly is installed between the upper arc-shaped seat (162) and the corresponding furnace body. Arc-shaped grooves are provided on the inner walls of both the lower arc-shaped seat (161) and the upper arc-shaped seat (162). A limit ring (41) is provided on one end of the furnace roller (4) adjacent to the furnace roller assembly and disassembly mechanism.

4. The annealing apparatus for stainless steel sheet coils according to claim 3, characterized in that, The upper arc-shaped seat unloading assembly includes a fixed seat (17), a threaded rod (18), a knob (181), a guide rod (19), a spring (20), and a limiting block (21). The fixed seat (17) is located above the corresponding upper arc-shaped seat (162) and is connected to the outer wall of the corresponding furnace body. The threaded rod (18) is threadedly connected to the fixed seat (17). The knob (181) is connected to the end of the threaded rod (18). The guide rod (19) moves through the fixed seat (17). The two ends of the guide rod (19) are connected to the upper arc-shaped seat (162) and the limiting block (21) respectively. The spring (20) is sleeved on the upper part of the guide rod (19).

5. The annealing apparatus for stainless steel sheet coils according to claim 1, characterized in that, The preheating furnace (1), heating furnace (2) and cooling furnace (3) are all equipped with insulation layers.

6. The annealing apparatus for stainless steel sheet coils according to claim 1, characterized in that, The diameter of the perforation (9) is larger than the diameter of the furnace roller (4).

Images