Annealing furnace tension control device for silicon steel and silicon steel annealing furnace production system
By integrating the tension meter in the tension control device of the silicon steel annealing furnace, the tension detection and control problems of thin and small tension are solved, and higher measurement accuracy and product quality are achieved.
Patent Information
- Application Number
- CN202421191943.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing silicon steel heat treatment lines are difficult to detect and control tension when the strip steel is thin and the tension is small, especially when accelerating and decelerating, which affects product quality.
A tension control device for annealing furnace for silicon steel is designed. By setting a front-heavy tension roller and a correction roller on the inlet side of the annealing furnace, a rear-heavy correction roller and a tension roller are provided on the outlet side, and a tension meter is integrated under the roller bearing seat of the rear-heavy correction roller, the distance and complexity of tension measurement are reduced.
The tension measurement accuracy of silicon steel after annealing furnace is improved, the tension of silicon steel is controlled stably, and the finished product quality of silicon steel strip is improved.
Smart Images
Figure CN222574728U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cold rolling heat treatment equipment, in particular to an annealing furnace tension control device for silicon steel and a silicon steel annealing furnace production system. Background Art
[0002] At present, there are annealing furnaces in the continuous heat treatment lines of silicon steel in the metallurgical industry. The heat treatment lines of medium and high grade non-oriented silicon steel and oriented silicon steel all use horizontal annealing furnaces. Because the annealing tension required by silicon steel is small and stable, and the annealing furnace is relatively long, the strip tension is small, and the strip is easy to deviate. Therefore, a correction roller is arranged at the outlet of the annealing furnace to correct it, so as to produce products with stable quality. The existing heat treatment lines of silicon steel usually have correction rollers and tension meter rollers arranged in sequence behind the annealing furnace.
[0003] As the strip steel is made thinner and thinner, the tension is getting smaller and smaller. For silicon steel processing lines, especially thin-gauge high-grade silicon steel, the thinnest strip steel is 0.1mm, and the minimum unit tension is 1.5N / mm. 2 If the width of the strip is 1000mm, the strip tension is 150N. Such a small strip tension brings certain difficulties to tension detection and control, especially when accelerating or decelerating. There is an extra roller (i.e., a deviation correction roller) in front of the tension meter roller. The tension value itself is not large, and an extra deviation correction roller will seriously affect the measurement accuracy. In addition, due to the influence of rotational inertia, the strip tension fluctuation will become larger, thus affecting product quality. Utility Model Content
[0004] The main purpose of the utility model is to provide an annealing furnace tension control device for silicon steel and a silicon steel annealing furnace production system, aiming to improve the tension measurement accuracy of silicon steel after the annealing furnace.
[0005] To achieve the above-mentioned purpose, the utility model provides a tension control device for an annealing furnace for silicon steel, comprising a front-furnace tension roller and a front-furnace deviation correction roller sequentially arranged at the entrance side of the annealing furnace, and a rear-furnace deviation correction roller and a rear-furnace tension roller sequentially arranged at the exit side of the annealing furnace, wherein:
[0006] The front-of-furnace correcting roller and the rear-of-furnace correcting roller are respectively located at the inlet and outlet sides of the annealing furnace. A tension meter is arranged under the roller bearing seat of the rear-of-furnace correcting roller to integrate the function of the tension roller.
[0007] Preferably, a tension meter is provided below the roller bearing seat of the front-of-furnace deviation-correcting roller.
[0008] Preferably, a furnace front tension release device is provided between the furnace front tension roller and the furnace front deviation correcting roller.
[0009] Preferably, a post-furnace tension release device is provided between the post-furnace deviation correction roller and the post-furnace tension roller.
[0010] Preferably, the front-furnace correcting roller and the rear-furnace correcting roller are both integral correcting rollers.
[0011] Preferably, the tension rollers in front of the furnace and behind the furnace are both four-roller tension rollers to provide tension in the furnace.
[0012] Preferably, the front-of-furnace tension release device and the rear-of-furnace tension release device both include a frame, a movable frame, a steering roller, a first linear guide and a cylinder, wherein the movable frame is mounted on the frame via the first linear guide, the cylinder is fixed on the side of the frame, a steering roller is supported on the movable frame, and the output rod of the cylinder and the movable frame are rotationally connected in a spherical contact manner to drive the movable frame to slide relative to the frame.
[0013] Preferably, a groove is opened on the side of the movable frame, a spherical pressure head is fixed inside the groove, a spherical push head is fixedly sleeved on the free end of the output rod of the cylinder, the spherical push head is inserted into the groove and spherically contacts with the spherical pressure head, the spherical push head is located on the outer side cover of the groove and is provided with a push head pressure plate, and the push head pressure plate is detachably connected to the movable frame by fasteners.
[0014] The utility model also provides a silicon steel annealing furnace production system, including the above-mentioned annealing furnace tension control device for silicon steel, and also includes an annealing furnace located between a front correction roller and a rear correction roller of the annealing furnace tension control device.
[0015] Preferably, the front tension roller and the rear tension roller of the annealing furnace tension control device are both vertical tension rollers, and the annealing furnace is a horizontal annealing furnace.
[0016] The annealing furnace tension control device for silicon steel proposed by the utility model has a tension meter directly arranged below the roller bearing seat of the deviation correction roller in front of the furnace, that is, the deviation correction roller integrates the function of the tension roller. Compared with the existing tension roller that is separately arranged behind the deviation correction roller, with such an arrangement, the tension meter is very close to the annealing furnace (without an additional deviation correction roller), so its tension measurement is accurate, which facilitates stable control of the tension of silicon steel, thereby improving the quality of the finished product of silicon steel strip. At the same time, the annealing furnace tension control device also has the advantages of simple structure, stable and reliable operation and easy implementation. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of the silicon steel annealing furnace production system of the utility model;
[0018] Figure 2 It is a schematic diagram of the structure of the front tension release device and the rear tension release device in the silicon steel annealing furnace production system of the utility model;
[0019] Figure 3 for Figure 2 The enlarged structural diagram of point A is shown.
[0020] In the figure, 1-tension roller in front of furnace, 2-tension releasing device in front of furnace, 3-correcting roller in front of furnace, 4-annealing furnace, 5-correcting roller behind furnace, 6-tension releasing device behind furnace, 7-tension roller behind furnace, 8-frame, 9-movable frame, 10-first linear guide, 11-steering roller, 12-cylinder, 13-push head pressure plate, 14-spherical push head, 15-spherical pressure head, 16-correcting hydraulic cylinder, 17-bearing seat, 18-second linear guide.
[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0023] It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0024] The utility model provides a tension control device for an annealing furnace of silicon steel.
[0025] Reference Figure 1 In this preferred embodiment, a tension control device for an annealing furnace for silicon steel comprises a front tension roller 1 and a front deviation correction roller 3 arranged in sequence at the entrance side of the annealing furnace 4, and a rear deviation correction roller 5 and a rear tension roller 7 arranged in sequence at the exit side of the annealing furnace 4, wherein:
[0026] The front-furnace correcting roller 3 and the rear-furnace correcting roller 5 are respectively located at the inlet and outlet sides of the annealing furnace 4. A tension meter is provided under the roller bearing seat 17 of the rear-furnace correcting roller 5 to integrate the function of a tension roller.
[0027] Furthermore, a tension meter is provided below the roller bearing seat 17 of the front-furnace correcting roller 3. In the present application, the wrap angle of the front-furnace correcting roller 3 and the rear-furnace correcting roller 5 is 180°, which is larger than the wrap angle set in the past. Both the front-furnace correcting roller 3 and the rear-furnace correcting roller 5 are provided with tension meters, and the tension measurement is more accurate.
[0028] Furthermore, a front-furnace tension release device 2 is provided between the front-furnace tension roller 1 and the front-furnace deviation correction roller 3. A rear-furnace tension release device 6 is provided between the rear-furnace deviation correction roller 5 and the rear-furnace tension roller 7. If the process section of the unit stops, the strip tension needs to be eliminated as soon as possible to avoid the strip breaking in the furnace. Therefore, the front-furnace tension release device 2 and the rear-furnace tension release device 6 are provided.
[0029] If only one tension release device is used, the other location only needs to be set as a steering roller 11. Obviously, it is better to set the tension release device at the same time.
[0030] In this embodiment, the front-furnace correcting roller 3 and the rear-furnace correcting roller 5 are both integral correcting rollers, which have stronger correcting capability.
[0031] The tension roller 1 in front of the furnace and the tension roller 7 behind the furnace are both four-roller tension rollers to provide tension in the furnace.
[0032] Reference Figure 2 and Figure 3 The front-of-furnace tension release device and the rear-of-furnace tension release device both include a frame 8, a moving frame 9, a steering roller 11, a first linear guide 10 and a cylinder 12, wherein the moving frame 9 is mounted on the frame 8 through the first linear guide 10, the cylinder 12 is fixed on the side of the frame 8, a steering roller 11 is supported on the moving frame 9, and the output rod of the cylinder 12 and the moving frame 9 are rotationally connected in a spherical contact manner to drive the moving frame 9 to slide relative to the frame 8.
[0033] Preferably, a groove is provided on the side of the mobile frame 9, a spherical pressure head 15 is fixed inside the groove, a spherical push head 14 is fixedly sleeved on the free end of the output rod of the cylinder 12, the spherical push head 14 is inserted into the groove and spherically contacts with the spherical pressure head 15, and the spherical push head 14 is located on the outer side of the groove and is covered with a push head pressure plate 13, which is detachably connected to the mobile frame 9 through fasteners. The push head pressure plate 13 is sleeved on the outer side of the output rod of the cylinder 12 and its bottom abuts against the spherical push head 14 and the side of the mobile frame 9.
[0034] Furthermore, a correction mechanism for adjusting the running direction angle of the steering roller 11 is also provided on the mobile frame 9. This embodiment proposes a specific structure of the correction mechanism: the correction mechanism includes a correction hydraulic cylinder 16 installed on the mobile frame 9, the output roller of the correction hydraulic cylinder 16 is hinged to the bearing seat 17 of the steering roller 11, and the cylinder body of the correction hydraulic cylinder 16 is fixed on the mobile frame 9. The bearing seat 17 of the steering roller 11 is installed on the second linear guide 18 on the mobile frame 9, and the correction hydraulic cylinder 16 drives the bearing seat 17 to slide relative to the second linear guide 18. The axis installation height of the output shaft of the correction hydraulic cylinder 16 is lower than the axis height of the output rod of the cylinder 12.
[0035] The tension release device uses a steering roller 11 and cooperates with the running track of the strip to release the tension of the strip. Compared with the multi-roller structure in the prior art, after adopting the tension release device, the deviation correction roller can be set closer to the annealing furnace, which reduces the difficulty of tension control. In addition, the output rod of the cylinder 12 and the movable frame 9 are rotatably connected in a spherical contact manner, which can effectively avoid the cylinder 12 lever from being subjected to bending moment, thereby increasing the service life of the cylinder 12. With this horizontal tension release device, the width of the tension release device can be greatly reduced compared with the three rollers in the prior art. Therefore, the tension meter can be close to the annealing furnace, which is also beneficial to tension measurement.
[0036] The tension control device for the annealing furnace of silicon steel proposed in this embodiment has a tension meter directly arranged below the roller bearing seat 17 of the correction roller 3 in front of the furnace, that is, the correction roller integrates the function of the tension roller. Compared with the existing tension roller that is separately arranged behind the correction roller, with such an arrangement, the tension meter is very close to the annealing furnace 4 (without an additional correction roller), so its tension measurement is accurate, which facilitates the stable control of the tension of silicon steel, thereby improving the quality of the finished product of silicon steel strip. At the same time, the annealing furnace tension control device also has the advantages of simple structure, stable and reliable operation, and easy implementation.
[0037] The utility model also provides a silicon steel annealing furnace production system.
[0038] In the preferred embodiment, a silicon steel annealing furnace production system includes an annealing furnace tension control device for silicon steel, and also includes an annealing furnace 4 located between a front deviation correction roller 3 and a rear deviation correction roller 5 of the annealing furnace tension control device. The specific structure and beneficial effects of the annealing furnace tension control device refer to the above embodiment and will not be repeated here.
[0039] In this embodiment, the front tension roller 1 and the rear tension roller 7 of the annealing furnace tension control device are both vertical tension rollers, and the annealing furnace 4 is a horizontal annealing furnace. In this application, by adopting a horizontal annealing furnace, compared with the vertical annealing furnace in the past, two rollers are saved, which not only reduces the investment cost, but also reduces the number of rollers, and the rotational inertia of the rollers is also reduced, which reduces the difficulty of tension control.
[0040] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A tension control device for an annealing furnace of silicon steel, characterized in that: It includes a front tension roller and a front deviation correction roller arranged in sequence at the entrance side of the annealing furnace, and a rear deviation correction roller and a rear tension roller arranged in sequence at the exit side of the annealing furnace, wherein: The front-of-furnace correcting roller and the rear-of-furnace correcting roller are respectively located at the inlet and outlet sides of the annealing furnace. A tension meter is arranged under the roller bearing seat of the rear-of-furnace correcting roller to integrate the function of a tension meter roller.
2. The annealing furnace tension control device for silicon steel according to claim 1, characterized in that: A tension meter is arranged below the roller bearing seat of the front-of-furnace deviation-correcting roller.
3. The annealing furnace tension control device for silicon steel according to claim 1, characterized in that: A furnace front tension release device is arranged between the furnace front tension roller and the furnace front deviation correcting roller.
4. The annealing furnace tension control device for silicon steel according to claim 1, characterized in that: A post-furnace tension release device is arranged between the post-furnace deviation correction roller and the post-furnace tension roller.
5. The annealing furnace tension control device for silicon steel according to claim 1, characterized in that: The front-of-furnace deviation-correcting roller and the rear-of-furnace deviation-correcting roller are both integral-type deviation-correcting rollers.
6. The annealing furnace tension control device for silicon steel according to claim 1, characterized in that: The tension rollers in front of the furnace and behind the furnace are both four-roller tension rollers to provide tension in the furnace.
7. The annealing furnace tension control device for silicon steel according to claim 3, characterized in that: The front-of-furnace tension release device and the rear-of-furnace tension release device both include a frame, a movable frame, a steering roller, a first linear guide rail and a cylinder, wherein the movable frame is mounted on the frame via the first linear guide rail, the cylinder is fixed on the side of the frame, a steering roller is supported on the movable frame, and the output rod of the cylinder and the movable frame are rotationally connected in a spherical contact manner to drive the movable frame to slide relative to the frame.
8. The tension control device for an annealing furnace for silicon steel according to claim 7, characterized in that: A groove is provided on the side of the movable frame, a spherical pressure head is fixed inside the groove, a spherical push head is fixedly sleeved on the free end of the output rod of the cylinder, the spherical push head is inserted into the groove and spherically contacts with the spherical pressure head, the spherical push head is located on the outer side cover of the groove and is provided with a push head pressure plate, and the push head pressure plate is detachably connected to the movable frame through fasteners.
9. A silicon steel annealing furnace production system, characterized in that: It comprises the annealing furnace tension control device for silicon steel as claimed in any one of claims 1 to 8, and also comprises an annealing furnace located between the front deviation correction roller and the rear deviation correction roller of the annealing furnace tension control device.
10. The silicon steel annealing furnace production system according to claim 9, characterized in that: The front tension roller and the rear tension roller of the annealing furnace tension control device are both vertical tension rollers, and the annealing furnace is a horizontal annealing furnace.