Anti-stick steel adhesion accumulation moving roller device

Abstract

The application discloses a mobile roller device capable of preventing cold steel from adhering and piling. The mobile roller device comprises a fixed roller (1), a roller bed fixed frame (3), a mobile roller (2) and a mobile frame (4), a graphite guard plate and a cleaning device. The mobile frame is capable of reciprocating forward and backward relative to the roller bed fixed frame. A mobile cross beam (41) is arranged on the mobile frame and is located below the mobile roller. The graphite guard plate is arranged at the mobile cross beam and covers the mobile cross beam. The cleaning device is fixedly installed on the roller bed fixed frame. When the mobile frame moves relative to the roller bed fixed frame, the cleaning device can sweep across the surface of the graphite guard plate and clean the surface of the graphite guard plate. The mobile roller device can easily remove the cold steel piled on the graphite guard plate, thereby preventing the cold steel from piling on the mobile cross beam.

Description

TECHNICAL FIELD

[0001] The present application relates to a moving roller device at a flame cutting machine of a continuous casting machine, in particular to a moving roller device preventing cold steel adhesion and accumulation. BACKGROUND

[0002] A certain steel company equips a flame cutting machine for cutting continuous casting billets in a continuous casting cutting operation area, a roller bed where the flame cutting machine is located is called "cutting roller bed", and a moving roller device is arranged at the cutting roller bed, which functions as a support for the continuous casting billets at the cutting position to prevent the continuous casting billets from bending and sagging.

[0003] Referring to Figure 1 , the current moving roller device includes fixed rollers 1, a roller bed fixed frame 3, moving rollers 2 and a moving frame 4. The roller bed fixed frame 3 is fixedly installed with the racks on both sides of the cutting roller bed, or in other words, the roller bed fixed frame 3 is installed at the cutting roller bed based on the racks on both sides of the cutting roller bed, that is, the roller bed fixed frame 3 is fixedly installed. The moving frame 4 is assembled with the roller bed fixed frame 3 through a guide wheel mechanism 5, and the moving frame 4 is driven by a hydraulic cylinder, so that the moving frame 4 can move "back and forth" relative to the roller bed fixed frame 3 by means of the driving force of the hydraulic cylinder and based on the rolling function of the guide wheel mechanism 5. The fixed rollers 1 are installed on the roller bed fixed frame 3 through a bearing seat, and the moving rollers 2 are installed on the moving frame 4 through a bearing seat, so that the moving rollers 2 can move "back and forth" relative to the fixed rollers 1 based on the roller bed fixed frame 3 and the moving frame 4.

[0004] A cross beam is arranged on the moving frame 4, which is referred to as "moving cross beam" in this paper, and the moving cross beam 41 is located below the moving rollers 2.

[0005] The current problem is that

[0006] When the flame cutting machine cuts the continuous casting billets, a large amount of molten steel slag will be splashed out, and when the flame cutting machine approaches the moving rollers 2, the molten steel slag splashed out during the cutting of the continuous casting billets will easily fall on the moving cross beam 41 (as indicated by arrow A in Figure 1 , over time, the steel slag splashed on the moving cross beam 41 will accumulate into large pieces of cold steel, and the large pieces of cold steel will be stuck between the moving rollers 2 and the moving cross beam 41, thereby causing the moving rollers 2 to be stuck. The contact relationship between the stuck moving rollers 2 and the continuous casting billets changes from rolling contact to sliding friction contact, thereby causing the surface of the continuous casting billets to be scratched by the moving rollers 2, resulting in quality defects of the continuous casting billets. In addition, if the cold steel on the moving cross beam 41 accumulates seriously, it will also make it impossible to install rollers, eventually leading to the overall scrap of the moving frame 4, thereby increasing equipment loss and being not conducive to the reduction of production cost. SUMMARY

[0007] The present application aims to provide a mobile roller device capable of effectively preventing the accumulation of cold steel on the moving beam.

[0008] In order to achieve the above technical purpose, the present application adopts the following technical solutions:

[0009] A mobile roller device capable of preventing the accumulation of cold steel adhesion, comprising a fixed roller, a roller bed fixed frame, a mobile roller and a mobile frame; the mobile frame is assembled with the roller bed fixed frame, and the mobile frame can move back and forth relative to the roller bed fixed frame; the fixed roller is installed on the roller bed fixed frame, the mobile roller is installed on the mobile frame, the mobile frame is provided with a moving beam, and the moving beam is located below the mobile roller; the mobile roller device further comprises a graphite guard plate and a cleaning device; the graphite guard plate is arranged at the moving beam, and the graphite guard plate covers the moving beam; the cleaning device is fixedly installed on the roller bed fixed frame; when the mobile frame moves relative to the roller bed fixed frame, the cleaning device can sweep the surface of the graphite guard plate, and the cleaning device can perform cleaning action on the surface of the graphite guard plate.

[0010] Further, the number of graphite guard plates included in the mobile roller device is two, which are an upper graphite guard plate and a front graphite guard plate; the upper graphite guard plate covers the upper part of the moving beam, and the front graphite guard plate covers the front part of the moving beam.

[0011] Further, the upper graphite guard plate and the front graphite guard plate are both installed on the moving beam through a quick mounting mechanism.

[0012] Further, the quick mounting mechanism for installing the upper graphite guard plate is an insertion type mounting mechanism; the quick mounting mechanism for installing the front graphite guard plate is an embedded mounting mechanism.

[0013] Further, the quick mounting mechanism for installing the upper graphite guard plate and the front graphite guard plate is specifically implemented in the form of structure: two blocking strips and two blocking blocks are assembled and arranged at the position of the mobile frame close to the moving beam; the two blocking strips are assembled in front of the moving beam, and the two blocking strips and the moving beam together form an insertion position suitable for vertically inserting the graphite guard plate, thereby constituting the insertion type mounting mechanism; the two blocking blocks are assembled behind the moving beam, and the two blocking strips, the two blocking blocks, the mobile frame and the moving beam together form an embedded position suitable for horizontally embedding the graphite guard plate, thereby constituting the embedded mounting mechanism.

[0014] Further, the upper graphite guard plate and the front graphite guard plate are both whole pure graphite plates.

[0015] Further, the cleaning device is a steel wire brush block.

[0016] The graphite guard plate shields the moving cross beam to avoid the splashed steel slag generated by the flame cutting machine from directly splashing on the moving cross beam. The cleaning device is fixedly installed on the roller fixed frame. When the moving frame moves relative to the roller fixed frame, the cleaning device can perform a cleaning action on the surface of the graphite guard plate. Due to the graphite material, the splashed steel slag on the graphite guard plate will not adhere to the graphite guard plate. The cleaning device can easily remove the accumulated cold steel on the graphite guard plate, thereby preventing the accumulation of cold steel on the moving cross beam.

[0017] The moving roller device of the present application has the beneficial effect of effectively preventing the accumulation of cold steel on the moving cross beam, thereby avoiding the situation that the moving roller is stuck by large pieces of cold steel, which causes the continuous casting billet surface to be scratched by the moving roller, and also avoiding the situation that the moving frame is scrapped as a whole due to the failure to install the roller. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic view of the prior art moving roller device;

[0019] Figure 2 Fig. 2 is a structural schematic view of the moving roller device for preventing cold steel adhesion and accumulation according to the present application;

[0020] Figure 3 Fig. 3 is a structural schematic view of the moving roller device according to the present application, in which the fixed roller and the moving roller are removed;

[0021] Figure 4 Fig. 4 is a structural schematic view of the moving roller device according to the present application, which is a top view;

[0022] Figure 5 Fig. 5 is a structural schematic view of the steel wire brush block in the moving roller device according to the present application.

[0023] In the figure: 1-fixed roller, 2-moving roller, 3-roller fixed frame, 4-moving frame, 41-moving cross beam, 5-guide wheel mechanism, 6-steel wire brush block, 61-clamping base block, 62-clamping gland, 7-upper graphite guard plate, 8-front graphite guard plate, 9-stop bar, 10-stop block. EMBODIMENT

[0024] The present application will be further described below in conjunction with the drawings and specific embodiments:

[0025] The embodiment provides a mobile roller device for preventing cold steel adhesion and accumulation, which is arranged on a cutting roller bed of a flame cutting machine and serves as a casting blank support at a cutting position to prevent casting blank sagging and bending.

[0026] The flame cutting machine is a device in a continuous casting cutting operation area of a certain steel company and is used for cutting a continuous casting blank produced by a continuous casting machine according to a predetermined size. The flame cutting machine cuts the continuous casting blank by using a flame cutting method, and a large amount of molten steel slag is splashed during cutting.

[0027] Referring to Figure 2 and Figure 3 , the mobile roller device comprises a fixed roller 1, a roller bed fixed frame 3, a mobile roller 2 and a mobile frame 4. The roller bed fixed frame 3 is fixedly installed with machine frames on both sides of a cutting roller bed, the mobile frame 4 is assembled with the roller bed fixed frame 3 through a guide wheel mechanism 5, the fixed roller 1 is installed on the roller bed fixed frame 3, the mobile roller 2 is installed on the mobile frame 4, and the mobile roller 2 can move back and forth relative to the fixed roller 1. The mobile frame 4 is provided with a mobile cross beam 41 located below the mobile roller 2.

[0028] The mobile roller device has the following innovative points.

[0029] The mobile roller device further comprises graphite guard plates and steel wire brush blocks 6.

[0030] The mobile roller device comprises two graphite guard plates, namely an upper graphite guard plate 7 and a front graphite guard plate 8, which are both installed on the mobile cross beam 41 and cover the mobile cross beam 41, so that the splashed steel slag during cutting of the continuous casting blank by the flame cutting machine falls on the graphite guard plates instead of the mobile cross beam 41.

[0031] More specifically,

[0032] The upper graphite guard plate 7 is installed above the mobile cross beam 41 and arranged in a horizontal state, and the front graphite guard plate 8 is installed in front of the mobile cross beam 41 and arranged in a vertical state. The upper graphite guard plate 7 and the front graphite guard plate 8 are overlapped at the corners of the mobile cross beam 41, so as to cover the mobile cross beam 41.

[0033] It needs to be explained that the previously described "two graphite guards shield the moving cross beam 41" does not mean that the entire moving cross beam 41 is shielded, but that the moving cross beam 41 is shielded in the direction where it is easy to be splashed by steel slag. In the embodiment, the directions where the moving cross beam 41 is easy to be splashed by steel slag are only the upper direction and the front direction. In this case, as long as the upper graphite guard 7 is shielded above the moving cross beam 41 and the front graphite guard 8 is shielded in front of the moving cross beam 41, the moving cross beam 41 can be shielded in the direction where it is easy to be splashed by steel slag.

[0034] It needs to be explained that the front of the moving cross beam 41 mentioned earlier refers to the direction of the moving cross beam 41 towards the flame cutting machine, and the rear of the moving cross beam 41 mentioned later refers to the direction of the moving cross beam 41 away from the flame cutting machine.

[0035] In the embodiment, in order to realize the quick and convenient installation of the graphite guard, the moving cross beam 41 is modified, specifically, a "quick installation mechanism" for installing the graphite guard is arranged on the moving cross beam 41, and the upper graphite guard 7 and the front graphite guard 8 are both installed on the moving cross beam 41 through the quick installation mechanism. In this way, the graphite guard is very quick and convenient to disassemble and replace, which is beneficial to improve the work efficiency.

[0036] Referring to Figure 3 and Figure 4 , the quick installation mechanism for installing the upper graphite guard 7 and the front graphite guard 8 is implemented in the following structure:

[0037] Two blocking strips 9 and two blocking blocks 10 are arranged on the moving frame 4 near the moving cross beam 41.

[0038] The two blocking strips 9 are arranged in front of the moving cross beam 41, and the two blocking strips 9 are symmetrically arranged on both sides of the moving cross beam 41. A certain gap is left between the two blocking strips 9 and the moving cross beam 41, which serves as an insertion slot for the graphite guard. The two blocking strips 9 and the moving cross beam 41 together form an insertion position suitable for vertically inserting the graphite guard, thereby forming an insertion type installation mechanism. The front graphite guard 8 is inserted into the insertion position of the insertion type installation mechanism, thereby realizing the quick installation of the front graphite guard 8.

[0039] The two blocks 10 are assembled behind the moving crossbeam 41, and symmetrically arranged on both sides of the moving crossbeam 41, and protrude from the upper part of the moving crossbeam 41, and the upper end of the two bars 9 also protrude from the upper part of the moving crossbeam 41, and the two blocks 9, the two blocks 10, the moving frame 4 and the moving crossbeam 41 thereof jointly form an embedding position suitable for horizontally embedding the graphite guard plate, thereby forming an embedded mounting mechanism. Embedding the upper graphite guard plate 7 into the embedding position of the embedded mounting mechanism can achieve rapid installation of the upper graphite guard plate 7.

[0040] The steel wire brush block 6 is used as a cleaning device to clean the upper graphite guard plate 7.

[0041] Specifically,

[0042] The steel wire brush block 6 is fixedly installed on the roller bed fixed frame 3 by a support made of a steel beam, and a steel wire brush is arranged on the steel wire brush block 6. When the moving roller 2 moves towards the fixed roller 1, i.e., when the moving frame 4 moves relative to the roller bed fixed frame 3, the steel wire brush block 6 can sweep across the surface of the upper graphite guard plate 7, and the steel wire brush on the steel wire brush block 6 can perform a cleaning action on the surface of the upper graphite guard plate 7, thereby cleaning the cold steel formed by the accumulation of splashed steel slag on the surface of the upper graphite guard plate 7, to avoid excessive accumulation of cold steel on the moving crossbeam 41.

[0043] The steel wire brush block 6 is specifically implemented in the form as shown in Figure 5 Specifically,

[0044] The steel wire brush block 6 includes a clamping base block 61, a clamping gland 62 and a steel wire brush (not shown in the figure), the steel wire brush is arranged between the clamping base block 61 and the clamping gland 62, and then two bolt fasteners are used to fasten the clamping base block 61 and the clamping gland 62 together, and the clamping base block 61 and the clamping gland 62 fastened together fix the steel wire brush therebetween, thereby forming a complete steel wire brush block 6.

[0045] In other embodiments, other types of cleaning devices can also be used, as long as they can achieve cleaning of the surface of the upper graphite guard plate 7.

[0046] In this embodiment, the graphite guard plate, i.e., the upper graphite guard plate 7 and the front graphite guard plate 8, is a whole piece of pure graphite plate, and in other embodiments, other plate materials with a graphite material surface can also be used, such as using a steel plate as a base plate, and attaching a graphite material on the surface of the base plate to form a steel plate with a graphite material surface.

[0047] In the normal production process, the flame cutting machine sprays a large amount of molten steel slag when cutting the continuous casting billet, and the sprayed molten steel slag splashes on the graphite guard plate arranged at the moving cross beam 41. Due to the graphite material, the steel slag splashed on the graphite guard plate will not adhere to the graphite guard plate, but will only adhere to the graphite guard plate. When the moving frame 4 moves relative to the roller fixed frame 3, the cleaning device will perform a cleaning action on the surface of the graphite guard plate. The cleaning is mainly for the upper graphite guard plate 7, and the cold steel on the upper graphite guard plate 7 is removed. The cold steel adhered to the front graphite guard plate 8 is usually adhered to the cold steel on the upper graphite guard plate 7. When the cold steel on the upper graphite guard plate 7 is removed, the cold steel on the front graphite guard plate 8 is also removed, so that the cold steel on the graphite guard plate is completely removed.

[0048] In the moving roller device of the embodiment, the graphite guard plate is arranged at the moving cross beam 41, and the graphite guard plate shields the moving cross beam 41 to avoid the splashed steel slag generated by the flame cutting machine from directly splashing on the moving cross beam 41. The cleaning device is fixedly installed on the roller fixed frame 3. When the moving frame 4 moves relative to the roller fixed frame 3, the cleaning device can perform a cleaning action on the surface of the graphite guard plate. Due to the graphite material, the steel slag splashed on the graphite guard plate will not adhere to the graphite guard plate, and the cleaning device can easily remove the cold steel accumulated on the graphite guard plate, so that the cold steel accumulated on the moving cross beam 41 can be prevented, and the situation that the steel slag splashed on the moving cross beam is accumulated into a large piece of cold steel, and the large piece of cold steel is stuck between the moving roller and the moving cross beam, so that the moving roller is stuck, and the contact relationship between the stuck moving roller and the continuous casting billet is changed from rolling contact to sliding friction contact, so that the surface of the continuous casting billet is scratched by the moving roller, resulting in quality defects of the continuous casting billet, is avoided. At the same time, the situation that if the cold steel accumulated on the moving cross beam is serious, the roller cannot be installed, and finally the moving frame is scrapped, is also avoided.

[0049] The above is only a preferred embodiment of the present application, and is not used to limit the protection scope of the present application. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A moving roller device for preventing cold steel from sticking and accumulating, comprising a fixed roller (1), a roller table fixing frame (3), a moving roller (2), and a moving frame (4). The movable frame (4) is assembled with the roller conveyor fixed frame (3), and the movable frame (4) can move back and forth relative to the roller conveyor fixed frame (3); the fixed roller (1) is installed on the roller conveyor fixed frame (3), the movable roller (2) is installed on the movable frame (4), and the movable frame (4) is provided with a movable crossbeam (41), which is located below the movable roller (2); Its features are: The moving roller device also includes a graphite guard plate and a cleaning device; the graphite guard plate is disposed at the moving crossbeam (41) and covers the moving crossbeam (41); the cleaning device is fixedly installed on the roller conveyor fixed frame (3); When the moving frame (4) moves relative to the roller conveyor fixed frame (3), the cleaning device can sweep across the surface of the graphite guard plate, and the cleaning device can perform a cleaning action on the surface of the graphite guard plate. The moving roller device includes two graphite guard plates, namely an upper graphite guard plate (7) and a front graphite guard plate (8); the upper graphite guard plate (7) covers the upper part of the moving crossbeam (41), and the front graphite guard plate (8) covers the front part of the moving crossbeam (41). The upper graphite guard plate (7) and the front graphite guard plate (8) overlap at the corner of the moving crossbeam (41).

2. The moving roller device for preventing cold steel adhesion and accumulation according to claim 1, characterized in that: The upper graphite guard plate (7) and the front graphite guard plate (8) are both installed on the moving crossbeam (41) by a quick-installation mechanism.

3. The moving roller device for preventing cold steel adhesion and accumulation according to claim 2, characterized in that: The quick-installation mechanism for installing the upper graphite guard plate (7) is an insert-type installation mechanism; the quick-installation mechanism for installing the front graphite guard plate (8) is an embedded installation mechanism.

4. The moving roller device for preventing cold steel adhesion and accumulation according to claim 3, characterized in that: The quick-installation mechanism for installing the upper graphite guard plate (7) and the front graphite guard plate (8) has the following specific structural form: Two baffles (9) and two baffles (10) are installed on the movable frame (4) near the movable crossbeam (41). The two baffles (9) are assembled in front of the movable crossbeam (41). The two baffles (9) and the movable crossbeam (41) together form an insertion position suitable for vertically inserting the graphite protective plate, thereby constituting the insertion installation mechanism. The two stops (10) are assembled behind the movable crossbeam (41). The two stops (9), the two stops (10), the movable frame (4) and its movable crossbeam (41) are combined to form an embedding position suitable for horizontal embedding of the graphite protective plate, thereby constituting the embedded installation mechanism.

5. The moving roller device for preventing cold steel adhesion and accumulation according to claim 1, characterized in that: Both the upper graphite guard plate (7) and the front graphite guard plate (8) are made of a single piece of pure graphite.

6. The moving roller device for preventing cold steel adhesion and accumulation according to claim 1, characterized in that: The cleaning device is a wire brush block (6).

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