Front bouncing roller device of annealing furnace

Abstract

The utility model discloses an annealing furnace front bouncing roller device, which comprises a steel roller, a movable roller seat, a driving device and a base, the steel roller is rotatably connected with the movable roller seat, the movable roller seat is slidably connected with the base, and the driving device can drive the movable roller seat to reciprocate on the base. The bouncing roller is formed by arranging the steel roller, the movable roller seat, the driving device and the base, the driving device drives the movable roller seat to drive the steel roller to achieve the reciprocating motion function on the base, during production, the movable roller seat is pushed out by the driving device to a working position to stretch a steel belt, and during shutdown, the movable roller seat is pushed out by the driving device to the working position to stretch the steel belt. And the movable roller seat is pulled back to the stop position by the driving device, so that the tension of the steel belt in the annealing furnace can be released when the annealing furnace unit stops, and the problem that the steel belt is wrinkled or broken when the annealing furnace unit stops is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, and particularly relates to a bounce roll device in front of an annealing furnace. Background Art

[0002] In the field of fine processing of cold-rolled sheets, the annealing furnace of a galvanizing production line is a key link, which plays a crucial role in the quality and performance of steel strips. The inside of the annealing furnace is divided into multiple control zones, including a preheating section, a direct-fired heating section, a radiation heating section, a rapid cooling section, and a leveling section, etc. Among them, the direct-fired heating section has the highest temperature, usually between 900 - 1050 °C; the radiation heating section is the area where the temperature of the steel strip is the highest, and the temperature range is 720 - 760 °C.

[0003] During normal production, if the production line stops unexpectedly, the steel strip will stop moving in the annealing furnace. Since the temperature in the furnace cannot be rapidly reduced, local high temperature will occur on the steel strip in the furnace, and the temperature of the steel strip will be very high. During the parking stage, the annealing furnace will stop heating, and at the same time, the furnace temperature will drop. During the process of the furnace temperature dropping, the increased plate temperature will also drop synchronously, and the problem of thermal expansion and cold contraction will occur on the steel strip. The steel strip will slowly retract as the temperature decreases. The tensioning machine that controls the tension in the furnace has stopped running, so the tension of the plates in the furnace cannot be controlled. Therefore, the tension of the plates in the furnace will also slowly increase, resulting in the high-temperature steel strip being pulled by a large tension, thereby increasing the risk of longitudinal wrinkling or breaking of the steel strip. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a bounce roll device in front of an annealing furnace for solving the problem of wrinkling or breaking of the steel strip in the annealing furnace during parking, aiming at the deficiencies in the above-mentioned prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bounce roll device in front of an annealing furnace includes a steel roll, a movable roll seat, a driving device, and a base. The steel roll is rotatably connected to the movable roll seat, the movable roll seat is slidably connected to the base, and the driving device can drive the movable roll seat to reciprocate on the base.

[0007] Optionally, a proximity switch positioning plate is provided on the movable roll seat, and a proximity switch is provided on the base.

[0008] Optionally, the number of the proximity switch positioning plates is two, and the number of the proximity switches is two.

[0009] Optionally, a driving rod protective cover plate is provided on the movable roll seat.

[0010] Optionally, a slide rail is provided on the base, and the movable roll seat slides on the slide rail.

[0011] Optionally, a limiting baffle is provided at one end of the base.

[0012] Optionally, the driving device is a cylinder, the cylinder is connected to the base, and the piston rod of the cylinder is connected to the movable roller seat.

[0013] Optionally, the pre-annealing furnace bouncing roller device further includes a roller seat locking mechanism, and the roller seat locking mechanism is arranged on the movable roller seat.

[0014] Optionally, the pre-annealing furnace bouncing roller device further includes a roller seat locking mechanism, and the roller seat locking mechanism is arranged on the base.

[0015] Optionally, the roller seat locking mechanism includes a positioning pin and an oil cylinder. The positioning pin is connected to the push rod of the oil cylinder, and the oil cylinder is used to push the positioning pin into or pull it out of the positioning hole of the movable roller seat.

[0016] The utility model has the following beneficial effects:

[0017] By providing a steel roller, a movable roller seat, a driving device and a base, a bouncing roller is formed in the utility model, so that the driving device drives the movable roller seat to drive the steel roller to realize a reciprocating motion function on the base. During production, the movable roller seat is pushed out by the driving device to the working position to stretch the steel strip. When the machine stops, the movable roller seat is pulled back by the driving device to the stop position, which can release the tension of the steel strip in the annealing furnace when the machine stops, and solves the problem of wrinkling or breaking of the steel strip when the annealing furnace unit stops. At the same time, when the unit starts up, the steel strip can also be conveyed to the steel roller of this device through the pre-furnace tension roller. The steel roller is pushed out by the driving device to continue storing the steel strip. When the movable roller seat reaches the working position, a proximity switch will detect it. After detecting that the movable roller seat is in place, the roller seat locking mechanism will automatically act to lock the movable roller seat to prevent the steel roller from loosening during production and affecting the tension adjustment in the furnace. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic structural diagram of the pre-annealing furnace bouncing roller device provided by the embodiment of the present utility model.

[0020] Explanation of the reference numerals in the drawings:

[0021] 1. Steel roller; 2. Movable roller seat; 21. Proximity switch positioning plate; 22. Drive rod protection cover plate; 3. Base; 31. Slide rail; 32. Limit baffle; 4. Cylinder; 5. Roller seat locking mechanism; 51. Positioning pin; 52. Oil cylinder; 6. Steel strip. Detailed implementation mode

[0022] To enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] The bounce roller device in front of the annealing furnace provided by the present utility model is arranged between the tensioning machine in front of the annealing furnace and the furnace inlet reversing roller.

[0024] As Figure 1 shown, a bounce roller device in front of an annealing furnace includes a steel roller 1, a movable roller seat 2, a driving device and a base 3. The steel roller 1 is rotatably connected to the movable roller seat 2. The movable roller seat 2 is slidably connected to the base 3. The driving device can drive the movable roller seat 2 to reciprocate on the base 3. The steel strip 6 is conveyed from the tensioning machine in front of the annealing furnace to the steel roller 1 and bypasses the steel roller 1, and then is conveyed to the furnace inlet reversing roller.

[0025] By arranging the steel roller 1, the movable roller seat 2, the driving device and the base 3, a bounce roller is formed, so that the driving device drives the movable roller seat 2 to drive the steel roller 1 to realize the reciprocating motion function on the base 3. During production, the movable roller seat 2 is pushed by the driving device to the working position to stretch the steel strip 6. When the machine stops, the movable roller seat 2 is pulled back to the stop position by the driving device, which can release the tension of the steel strip 6 in the annealing furnace when the machine stops, and solves the problem of wrinkling or breaking of the steel strip 6 when the annealing furnace unit stops.

[0026] In one embodiment, a proximity switch positioning plate 21 is provided on the movable roller seat 2, and a proximity switch is provided on the base 3. When the proximity switch positioning plate 21 moves to the proximity switch, the proximity switch is triggered to act.

[0027] In one embodiment, the number of the proximity switch positioning plates 21 is two, and the number of the proximity switches is two. They are respectively arranged at two positions in the front and back on the base 3, corresponding to the working position and the stop position respectively.

[0028] In one embodiment, a drive rod protection cover plate 22 is provided on the movable roller seat 2. By providing the drive rod protection cover plate 22, it is possible to prevent falling objects from damaging the drive rod of the drive device.

[0029] In one embodiment, a slide rail 31 is provided on the base 3, and the movable roller seat 2 slides on the slide rail 31.

[0030] In one embodiment, a limit baffle 32 is provided at one end of the base 3 to prevent overtravel during ejection.

[0031] In one embodiment, the driving device is a cylinder 4. The cylinder 4 is connected to the base 3, and the piston rod of the cylinder 4 is connected to the movable roller seat 2.

[0032] In other embodiments, the driving device can also be an electro-hydraulic push rod or a hydraulic cylinder.

[0033] In one embodiment, the pre-annealing furnace bouncing roller device further includes a roller seat locking mechanism 5, and the roller seat locking mechanism 5 is arranged on the movable roller seat 2. At this time, positioning holes need to be correspondingly arranged on the base 3.

[0034] In one embodiment, the pre-annealing furnace bouncing roller device further includes a roller seat locking mechanism 5, and the roller seat locking mechanism 5 is arranged on the base 3. At this time, positioning holes need to be correspondingly arranged on the movable roller seat 2.

[0035] In one embodiment, the roller seat locking mechanism 5 includes a positioning pin 51 and an oil cylinder 52. The positioning pin 51 is connected to the piston rod of the oil cylinder 52, and the oil cylinder 52 is used to push the positioning pin 51 into or pull it out of the positioning hole of the movable roller seat 2.

[0036] In summary, the utility model realizes the reciprocating movement function of the steel roller 1 on the base 3 by arranging the steel roller 1, the movable roller seat 2, the driving device and the base 3. During production, the movable roller seat 2 is pushed by the driving device to the working position to stretch the steel strip 6. When the machine stops, the movable roller seat 2 is pulled back to the stop position by the driving device, so that the tension of the steel strip 6 in the annealing furnace can be released when the machine stops, solving the problems of wrinkling or breaking of the steel strip 6 when the annealing furnace unit stops. At the same time, when the unit starts up, the steel strip 6 can also be conveyed to the steel roller 1 of this device through the pre-furnace tension roller. The steel roller 1 is pushed by the driving device, so that the steel roller 1 continues to store the steel strip 6. When the movable roller seat 2 reaches the working position, a proximity switch will detect it. After detecting that the movable roller seat 2 is in place, the roller seat locking mechanism 5 will automatically act to lock the movable roller seat 2 to prevent the steel roller 1 from loosening during production and affecting the tension adjustment in the furnace.

[0037] The above has described the embodiments of the present utility model in detail through examples. However, the above content is only an exemplary embodiment of the embodiments of the present utility model and cannot be considered as limiting the implementation scope of the embodiments of the present utility model. The protection scope of the embodiments of the present utility model is defined by the claims. Those who utilize the technical solutions described in the embodiments of the present utility model, or those skilled in the art who, inspired by the technical solutions of the embodiments of the present utility model, design similar technical solutions within the essence and protection scope of the embodiments of the present utility model to achieve the above technical effects, or make equivalent changes and improvements to the application scope, etc., should still fall within the scope of patent coverage of the embodiments of the present utility model.

Claims

1. A bouncing roller device in front of an annealing furnace, characterized in that, It includes a steel roller (1), a movable roller seat (2), a driving device and a base (3). The steel roller (1) is rotatably connected to the movable roller seat (2), the movable roller seat (2) is slidably connected to the base (3), and the driving device can drive the movable roller seat (2) to reciprocate on the base (3).

2. The front bounce roller device of the annealing furnace according to claim 1, characterized in that, A proximity switch positioning plate (21) is provided on the movable roller seat (2), and a proximity switch is provided on the base (3).

3. The front bounce roller device of the annealing furnace according to claim 2, characterized in that, The number of the proximity switch positioning plates (21) is two, and the number of the proximity switches is two.

4. The annealing furnace front bounce roller device according to claim 1, characterized in that, A driving rod protection cover plate (22) is provided on the movable roller seat (2).

5. The front bounce roller device of the annealing furnace according to claim 1, characterized in that, A slide rail (31) is provided on the base (3), and the movable roller seat (2) slides on the slide rail (31).

6. The front bounce roller device of the annealing furnace according to claim 1, characterized in that A limit baffle (32) is provided at one end of the base (3).

7. The front bounce roller device of the annealing furnace according to claim 1, characterized in that, The driving device is a cylinder (4). The cylinder (4) is connected to the base (3), and the cylinder rod of the cylinder (4) is connected to the movable roller seat (2).

8. The front bounce roller device of the annealing furnace according to claim 1, characterized in that It further includes a roller seat locking mechanism (5), and the roller seat locking mechanism (5) is arranged on the movable roller seat (2).

9. The bouncing roller device in front of the annealing furnace according to claim 1, characterized in that, It further includes a roller seat locking mechanism (5), and the roller seat locking mechanism (5) is arranged on the base (3).

10. The front bounce roller device of the annealing furnace according to claim 9, characterized in that, The roller seat locking mechanism (5) includes a positioning pin (51) and an oil cylinder (52). The positioning pin (51) is connected to the push rod of the oil cylinder (52), and the oil cylinder (52) is used to push the positioning pin (51) into or out of the positioning hole of the movable roller seat (2).

Images