Device for eliminating zinc-aluminum-magnesium surface pockmarks caused by rubbing of strip steel and stabilizing roller

Abstract

The utility model provides a set of device for eliminating zinc-aluminum-magnesium surface pockmarks caused by rubbing of strip steel and a stabilizing roller, which comprises a sealing roller arranged at an inlet of an annealing furnace and the strip steel wound on the surface of a material guiding roller, the sealing roller is arranged on a sealing roller frame, and mutually symmetrical jackscrew sliding plates are arranged on the sealing roller frame. A jackscrew traction frame is connected to the jackscrew sliding plate in a sliding mode, the sealing roller is rotationally connected to the jackscrew traction frame, and two stabilizing rollers are further installed at an inlet of the annealing furnace. An existing sealing roller is modified, the jackscrew is additionally arranged between the inlet sealing rollers to increase the distance between the sealing rollers, the pair of stabilizing rollers is additionally arranged in front of the inlet sealing rollers, poor strip steel plate shape is controlled, the head and the tail of strip steel are prevented from shaking, meanwhile, the strip steel is kept in the middle of a gap as much as possible to pass through the sealing rollers, scratching is avoided, and the service life of the strip steel is prolonged. The relative speed of the sealing roller and the strip steel is increased, so that scratch is reduced when the sealing roller is in contact with the strip steel, and harmful contact between poor parts of a cold and hard raw material plate and the sealing roller is eliminated.

Description

Technical Field

[0001] The utility model belongs to the field of zinc-aluminum-magnesium product optimization, in particular to a device for eliminating pits on the surface of zinc-aluminum-magnesium caused by the scraping of strip steel and a stabilizing roller. Background Art

[0002] In today's society, cold-rolled zinc-aluminum-magnesium products are highly competitive. All manufacturers are working hard to improve product quality and enhance the market competitiveness of their products. In surface quality control, pitting defects appear on the surface of zinc-aluminum-magnesium in the early stage of production, which has a great impact on product quality improvement. Through repeated investigations and confirmations, the incoming plate shape is poor, and the strip steel and the annealing furnace sealing rollers scratch the plate surface, causing damage to the strip steel. After the damage, the surface defects cannot be eliminated at a lower annealing temperature, causing pitting defects on the surface after hot-dip galvanizing and aluminum-magnesium.

[0003] In summary, the utility model provides a device for eliminating pits on the surface of zinc, aluminum and magnesium caused by the scratches between the strip steel and the stabilizing roller, so as to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a device for eliminating pits on the surface of zinc, aluminum and magnesium caused by scratches between strip steel and stabilizing rollers, so as to solve the problems in the prior art that the strip steel and the sealing rollers of the annealing furnace cause damage to the plate surface, the surface defects of the damaged strip steel cannot be eliminated at a lower annealing temperature, and pit defects are caused on the surface after hot-dip galvanizing, aluminum and magnesium.

[0005] A device for eliminating pits on the surface of zinc, aluminum and magnesium caused by scratches between strip steel and stabilizing rollers, comprising a sealing roller installed at the entrance of an annealing furnace and a strip steel wound on the surface of a feed roller, wherein the sealing roller is installed on a sealing roller frame, and mutually symmetrical top wire slide plates are installed on the sealing roller frame, a top wire traction frame is slidably connected to the top wire slide plates, the sealing roller is rotatably connected to the top wire traction frame, and two stabilizing rollers are also installed at the entrance of the annealing furnace.

[0006] Furthermore, one end of the top screw traction frame is rotatably connected to a top screw rod, one end of the top screw rod is rotatably passed through one side of the sealing roller frame, and is connected to the sealing roller frame through a thread.

[0007] Furthermore, the screw rod adjustment length of the top screw rod is 80 mm to 100 mm.

[0008] Furthermore, the sealing rollers are symmetrically arranged with each other, a gap is arranged between the two sealing rollers, and the steel strip passes through the gap between the sealing rollers.

[0009] Furthermore, the strip contacts the feed roller, passes through the stabilizing roller, and finally penetrates the gap of the sealing roller and extends into the annealing furnace. The stabilizing rollers are respectively arranged on both sides of the strip and contact the surface of the strip.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The utility model transforms the existing sealing rollers, adds a top screw between the entrance sealing rollers to increase the spacing between the sealing rollers, and adds a pair of stabilizing rollers in front of the entrance sealing rollers to control the bad shape of the strip and prevent the head and tail of the strip from shaking. At the same time, the strip is kept in the middle of the gap as much as possible when passing through the sealing rollers to avoid scratches.

[0012] 2. The utility model increases the relative speed between the sealing roller and the steel strip, reduces the scratches when the sealing roller and the steel strip are in contact, eliminates the harmful contact between the poorly shaped parts of the cold hardened raw material and the sealing roller, and eliminates the pitting defects caused by the damage to the plate surface due to scratches. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the sealing roller structure of the utility model.

[0015] In the figure:

[0016] 1. Strip steel; 2. Sealing roller; 3. Stabilizing roller; 4. Feeding roller; 5. Sealing roller frame; 6. Top screw rod; 7. Top screw slide plate; 8. Top screw traction frame. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0018] like Figure 1-2 As shown, the utility model provides a device for eliminating pits on the surface of zinc, aluminum and magnesium caused by scratches between strip steel and stabilizing rollers, comprising a sealing roller 2 installed at the entrance of an annealing furnace and a strip steel 1 wound on the surface of a feed roller 4, the sealing roller 2 being installed on a sealing roller frame 5, the sealing roller frame 5 being provided with mutually symmetrical top wire slide plates 7, the top wire slide plates 7 being slidably connected with a top wire traction frame 8, the sealing roller 2 being rotatably connected to the top wire traction frame 8, and two stabilizing rollers 3 being further installed at the entrance of the annealing furnace.

[0019] As an embodiment of the present utility model, one end of the top screw traction frame 8 is rotatably connected to the top screw rod 6, and one end of the top screw rod 6 rotates through one side of the sealing roller frame 5 and is connected to the sealing roller frame 5 through a thread.

[0020] As an implementation mode of the present utility model, the screw rod adjustment length of the top screw rod 6 is 80 mm to 100 mm.

[0021] As an implementation mode of the present utility model, the sealing rollers 2 are symmetrically arranged with each other, a gap is arranged between the two sealing rollers 2 , and the steel strip 1 passes through the gap between the sealing rollers 2 .

[0022] As an embodiment of the utility model, the steel strip 1 contacts the feed roller 4, then passes through the stabilizing roller 3, and finally penetrates the gap of the sealing roller 2 and extends into the annealing furnace. The stabilizing rollers 3 are respectively arranged on both sides of the steel strip 1 and contact the surface of the steel strip 1.

[0023] Specific working principle:

[0024] After the strip 1 is fed through the feed roller 4, it passes through the position between the stabilizing rollers 3. The two stabilizing rollers 3 contact the left and right sides of the feed roller 4 respectively, and then passes through the gap A between the sealing rollers 2 (such as Figure 2 ), entering the annealing furnace, the steel strip 1 does not contact the sealing roller 2;

[0025] The distance between the sealing rollers 2 can be adjusted by rotating the top screw rod 6, which can move the top screw slide plate 7 to slide. Top screws of different lengths of 80mm to 100mm can be added between the inlet sealing rollers 2 to increase the gap between the inlet sealing rollers 2 according to the production specifications. As the gap increases, the consumption of protective gas in the annealing furnace increases, and the gap between the inlet sealing rollers 2 cannot be increased indefinitely.

[0026] Increase the running speed of the entrance sealing roller 2 relative to the strip steel 1, so that even if the strip steel 1 contacts the sealing roller 2, the relative speed is as small as possible to reduce scratches;

[0027] A set of adjustable stabilizing rollers 3 is added at the entrance of the inlet sealing roller 2 to ensure that the strip 1 is always in the middle position of the gap between the sealing rollers 3 when the strip passes through the stabilizing rollers 3, thereby reducing the scratches between the sealing rollers 3 and the strip 1.

[0028] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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 orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The implementation modes of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A device for eliminating pits on the surface of zinc, aluminum and magnesium caused by the scratches between the strip and the stabilizing roller, comprising a sealing roller (2) installed at the entrance of an annealing furnace and a strip (1) wound on the surface of a feed roller (4), characterized in that: The sealing roller (2) is mounted on a sealing roller frame (5), and mutually symmetrical top screw slide plates (7) are mounted on the sealing roller frame (5). A top screw traction frame (8) is slidably connected to the top screw slide plates (7), and the sealing roller (2) is rotatably connected to the top screw traction frame (8). Two stabilizing rollers (3) are also mounted at the entrance of the annealing furnace.

2. The device for eliminating the pits on the surface of zinc, aluminum and magnesium caused by the scratches between the strip and the stabilizing roller as claimed in claim 1, characterized in that: One end of the top screw traction frame (8) is rotatably connected to a top screw rod (6), and one end of the top screw rod (6) rotatably penetrates one side of the sealing roller frame (5) and is connected to the sealing roller frame (5) via a thread.

3. The device for eliminating the pits on the surface of zinc, aluminum and magnesium caused by the scratches between the strip and the stabilizing roller as described in claim 2, characterized in that: The screw rod adjustment length of the top screw rod (6) is 80 mm to 100 mm.

4. The device for eliminating pits on the surface of zinc, aluminum and magnesium caused by the scratches between the strip and the stabilizing roller as claimed in claim 1, characterized in that: The sealing rollers (2) are arranged symmetrically with respect to each other, a gap is arranged between the two sealing rollers (2), and the steel strip (1) passes through the gap between the sealing rollers (2).

5. The device for eliminating pits on the surface of zinc, aluminum and magnesium caused by the scratches between the strip and the stabilizing roller as claimed in claim 1, characterized in that: The steel strip (1) contacts a feed roller (4), passes through a stabilizing roller (3), and finally penetrates a gap between sealing rollers (2) and extends into an annealing furnace. The stabilizing rollers (3) are respectively arranged on both sides of the steel strip (1) and contact the surface of the steel strip (1).

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