A wrinkle-resistant device for hot rolling mills used in thin strip steel production

Abstract

This utility model discloses an anti-wrinkle device for hot rolling mills used in the production of thin strip steel. It includes a hot rolling mill body and a wrinkle detection mechanism. The wrinkle detection mechanism includes a detection frame with a detection cavity inside. Detection wheels are arranged sequentially on the top surface of the detection cavity, and telescopic piles are connected to the top of the detection wheels. This anti-wrinkle device works by continuously conveying the strip steel after hot rolling using a conveying frame and conveying rollers. Simultaneously, the detection wheels in the detection frame detect the conveyed strip steel. When a bulge or collapse occurs on the surface of the strip steel, it causes excessive pressure on the pressure sensor of the linkage rod at the top of the telescopic pile, or complete non-contact with the pressure sensor. The detection is based on the force signal from the pressure sensor, allowing the producer to promptly determine whether wrinkles exist on the strip steel surface and make timely adjustments without manual intervention, thus improving the quality and efficiency of the strip steel production process.

Description

Technical Field

[0001] This utility model relates to the field of hot rolling processing technology, specifically to an anti-wrinkle device for hot rolling mills used in the production of thin strip steel. Background Technology

[0002] Hot rolling is a processing technology in steel production, referring to the process of plastic deformation of metal through a rolling mill at temperatures above the crystallization temperature. Compared to cold rolling, hot rolling results in higher metal plasticity and lower deformation resistance, significantly reducing the energy consumption of metal deformation. Currently, the production of thin strip steel mainly utilizes the hot rolling process. The main procedure involves heating continuously cast slabs or rough-rolled slabs to a high temperature in a walking beam furnace, descaling them with high-pressure water, and then rolling them into thin strip steel using a combination of roughing and finishing mills.

[0003] Traditional rolling mills still have certain shortcomings in processing strip steel. They cannot pre-treat and level the strip steel, resulting in wrinkles on the surface of the strip steel after hot rolling. At the same time, they cannot detect minute wrinkles in time, and relying solely on manual judgment is not accurate enough, thus affecting the overall production quality of the strip steel and making it unsuitable for subsequent coiling, transportation, or processing. Utility Model Content

[0004] The purpose of this invention is to provide an anti-wrinkle device for hot rolling mills used in the production of thin strip steel, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot rolling mill anti-wrinkle device for thin strip steel production, comprising a hot rolling mill body and a wrinkle detection mechanism, wherein one end of the hot rolling mill body is fixed to the wrinkle detection mechanism; the wrinkle detection mechanism includes a detection frame, the inside of which is provided with a detection cavity, and detection wheels are arranged sequentially on the top surface of the detection cavity, with telescopic piles connected to the top of the detection wheels; a detection pile seat is sleeved on the top of the telescopic pile, and a linkage rod is fixed at the center of the top of the telescopic pile, with a pressure sensor aligned with the top of the linkage rod, and spring telescopic rods distributed on both sides of the pressure sensor.

[0006] Furthermore, the detection wheels are arranged in an inclined manner along the top of the inside of the detection cavity, and the detection cavity is connected to one end of the hot rolling mill body.

[0007] Furthermore, the detection wheel is rotatably connected to the bottom end of the telescopic pile, and the telescopic pile forms a telescopic structure with the detection cavity through the detection pile seat.

[0008] Furthermore, the top of the telescopic pile forms an elastic telescopic structure with the detection pile base through a spring telescopic rod, and the spring telescopic rod is distributed in two sets.

[0009] Furthermore, the linkage rod is fixedly connected to the top of the telescopic pile, and the linkage rod and the pressure sensor are aligned vertically.

[0010] Furthermore, the main body of the hot rolling mill includes a main frame, a material placement platform is fixed at one end of the main frame, a base is fixed at the bottom end of the main frame, and a hot rolling cavity is opened in the center of the main frame; lower hot rolling rolls are distributed at the bottom of the interior of the hot rolling cavity, and a hot rolling frame is aligned with the top of the lower hot rolling rolls; sliders are fixed on both sides of the hot rolling frame, upper hot rolling rolls are axially connected to both sides of the inner wall of the hot rolling frame, and a hydraulic cylinder is fixed at the top of the hot rolling frame; a conveying frame is fixed at the other end of the main frame, and conveying rolls are arranged on the top surface of the conveying frame.

[0011] Furthermore, the lower hot rolling roll and the upper hot rolling roll are arranged vertically aligned along the hot rolling cavity, and the upper hot rolling roll forms a lifting structure through the hot rolling frame and hydraulic cylinder.

[0012] Furthermore, the material placement platform and the conveying frame are fixedly connected to both ends of the main frame, and the conveying rollers are arranged at equal intervals along the inside of the conveying frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This novel anti-wrinkle device involves continuously conveying the hot-rolled strip steel via a conveying frame and conveying rollers. Simultaneously, a detection wheel within the detection frame inspects the conveyed strip steel. When a protrusion or collapse occurs on the surface of the strip steel, it causes excessive pressure on the pressure sensor of the linkage rod at the top of the telescopic pile, or complete non-contact with the pressure sensor. The device uses the force signal from the pressure sensor for detection, allowing the manufacturer to promptly determine if wrinkles exist on the strip steel surface. This enables timely adjustments without manual intervention, improving the quality and efficiency of the strip steel production process.

[0014] This utility model anti-wrinkle device provides hot rolling processing space for thin strip steel through the hot rolling cavity opened in the main frame. With the lower hot rolling roll and the upper hot rolling roll symmetrically arranged above and below the hot rolling cavity, the upper and lower sides of the strip steel can be hot rolled at the same time. The arrangement of the rolls increases the contact with the surface of the strip steel, thereby ensuring the quality of hot rolling production. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the main body of the hot rolling mill of this utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of the hot rolling mill frame of this utility model; Figure 3 This is a three-dimensional structural diagram of the testing frame of this utility model; Figure 4 This is a schematic diagram of the bottom structure of the detection chamber of this utility model; Figure 5 This is a three-dimensional structural diagram of the detection wheel of this utility model; Figure 6 This is a frontal view of the internal structure of the telescopic pile of this utility model.

[0016] In the diagram: 1. Main body of the hot rolling mill; 101. Main frame; 102. Material placement platform; 103. Material placement platform; 104. Hot rolling chamber; 105. Lower hot rolling roll; 106. Hot rolling frame; 107. Slider; 108. Upper hot rolling roll; 109. Hydraulic cylinder; 110. Conveying frame; 111. Conveying roll; 2. Wrinkle detection mechanism; 201. Detection frame; 202. Detection chamber; 203. Detection wheel; 204. Telescopic pile; 205. Detection pile base; 206. Linkage rod; 207. Pressure sensor; 208. Spring telescopic rod. Detailed Implementation

[0017] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the drawings. Without conflict, embodiments and features in the embodiments of the present invention can be combined with each other.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] This utility model provides, for example Figure 1-6 The device shown is an anti-wrinkle device for hot rolling mills used in the production of thin strip steel. It includes a hot rolling mill body 1 and a wrinkle detection mechanism 2, with one end of the hot rolling mill body 1 fixed to the wrinkle detection mechanism 2.

[0020] The main body 1 of the hot rolling mill includes a main frame 101. A material placement platform 102 is fixed to one end of the main frame 101, and a base 103 is fixed to the bottom end of the main frame 101. A hot rolling cavity 104 is opened in the center of the main frame 101. Lower hot rolling rolls 105 are distributed at the bottom of the interior of the hot rolling cavity 104, and a hot rolling frame 106 is aligned with the top of the lower hot rolling rolls 105. Slider blocks 107 are fixed on both sides of the hot rolling frame 106, and upper hot rolling rolls 108 are axially connected to both sides of the inner wall of the hot rolling frame 106. A hydraulic cylinder 109 is fixed to the top of the hot rolling frame 106. A conveying frame 110 is fixed to the other end of the main frame 101, and conveying rolls 111 are arranged on the top surface of the conveying frame 110.

[0021] The wrinkle detection mechanism 2 includes a detection frame 201, an internal detection cavity 202, detection wheels 203 arranged sequentially on the top surface of the detection cavity 202, and telescopic posts 204 connected to the top of the detection wheels 203; a detection post base 205 is sleeved on the top of the telescopic post 204, and a linkage rod 206 is fixed at the center of the top of the telescopic post 204; a pressure sensor 207 is aligned with the top of the linkage rod 206; and spring telescopic rods 208 are distributed on both sides of the pressure sensor 207. Furthermore, the detection wheels 203 are arranged in an inclined manner along the top of the inside of the detection cavity 202, and the detection cavity 202 is connected to one end of the hot rolling mill body 1; the detection wheels 203 are rotatably connected to the bottom of the telescopic pile 204, and the telescopic pile 204 forms a telescopic structure with the detection cavity 202 through the detection pile seat 205; the top of the telescopic pile 204 forms an elastic telescopic structure with the detection pile seat 205 through the spring telescopic rod 208, and the spring telescopic rod 208 is distributed in two sets; the linkage rod 206 is fixedly connected to the top of the telescopic pile 204, and the linkage rod 206 is aligned with the upper and lower centers of the pressure sensor 207.

[0022] Furthermore, the lower hot rolling roll 105 and the upper hot rolling roll 108 are arranged vertically aligned along the hot rolling chamber 104, and the upper hot rolling roll 108 forms a lifting structure through the hot rolling frame 106 and the hydraulic cylinder 109; the material placement platform 102 and the conveying frame 110 are fixedly connected to both ends of the main frame 101, and the conveying roll 111 is arranged at equal intervals along the inside of the conveying frame 110.

[0023] like Figure 1-2 As shown, the anti-wrinkle device in this embodiment provides hot rolling processing space for thin strip steel through the hot rolling cavity 104 opened in the main frame 101. With the lower hot rolling roll 105 and the upper hot rolling roll 108 symmetrically arranged in the hot rolling cavity 104, the upper and lower sides of the strip steel can be hot rolled at the same time. The arrangement of the rolls increases the contact with the surface of the strip steel, thereby ensuring the quality of hot rolling production.

[0024] like Figure 3-6 As shown, the anti-wrinkle device in this embodiment can continuously convey the strip steel by the conveying frame 110 and conveying roller 111 after hot rolling. At the same time, the detection wheel 203 in the detection frame 201 detects the conveyed strip steel. When a bulge or collapse occurs on a certain part of the strip steel surface, it will cause the pressure of the linkage rod 206 at the top of the telescopic pile 204 to contact the pressure sensor 207 to be too high or not to contact the pressure sensor 207 at all. The force signal of the pressure sensor 207 is used to determine the detection, so that the producer can judge in time whether there is a wrinkle on the surface of the strip steel. This allows for timely adjustment and treatment without manual judgment, thus improving the quality and efficiency of the strip steel production process.

[0025] In summary, when using the anti-wrinkle device in this embodiment, the strip steel to be produced is first fed into the feeding platform 102 and hot-rolled through the hot rolling chamber 104 connected to one end of the feeding platform 102. At this time, the lower hot rolling roll 105 and the upper hot rolling roll 108 in the hot rolling chamber 104 are heated simultaneously. The upper hot rolling roll 108 is driven by the hydraulic cylinder 109 at the top of the hot rolling frame 106. The hydraulic cylinder 109 drives the connected hot rolling frame 106 and the upper hot rolling roll 108 to move up and down to adapt to different thicknesses of the strip steel. Subsequently, the strip steel is conveyed into the hot rolling process along with the rollers. After the synchronous pressing and hot rolling of multiple sets of rollers, it is conveyed out from the other end of the discharge frame 110 and enters the detection chamber 202 of the detection frame 201. At this time, the multiple sets of detection wheels 203 arranged in the detection chamber 202 are successively attached to the surface of the strip steel and roll along with the conveyor. When the surface of the strip steel is flat, the detection wheel 203 that is in contact with it rises with the telescopic pile 204, and the linkage rod 206 at the top of the telescopic pile 204 comes into contact with the pressure sensor 207, which matches the pressure data of the pressure sensor 207. When wrinkles appear, it means that there will be a bulge on the surface, and the linkage rod 206 at the top of the telescopic pile 204 will continue to rise. At this time, the pressure sensor 207 senses that the contact pressure of the linkage rod 206 increases, which causes a change. At this time, the microcontroller connected to the pressure sensor 207 and the external computer can be used to monitor the pressure change, so that the wrinkle phenomenon can be investigated and dealt with in a timely manner, thereby improving product quality.

[0026] The above description is merely a selection of preferred embodiments of this utility model and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this utility model in the embodiments is not limited to the specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this utility model.

Claims

1. A wrinkle prevention device for a hot rolling mill used in the production of thin strip steel, comprising a hot rolling mill body (1) and a wrinkle detection mechanism (2), wherein one end of the hot rolling mill body (1) is fixed to the wrinkle detection mechanism (2), characterized in that, The wrinkle detection mechanism (2) includes a detection frame (201), and a detection cavity (202) is opened inside the detection frame (201). Detection wheels (203) are arranged sequentially on the top surface of the detection cavity (202). The top of the detection wheels (203) is connected to a telescopic pile (204). The top of the telescopic pile (204) is sleeved with a detection pile seat (205), and a linkage rod (206) is fixed at the center of the top of the telescopic pile (204). The top of the linkage rod (206) is aligned with a pressure sensor (207), and spring telescopic rods (208) are distributed on both sides of the pressure sensor (207).

2. The anti-wrinkle device for hot rolling mills used in thin strip steel production according to claim 1, characterized in that, The detection wheels (203) are arranged in an inclined manner along the top of the inside of the detection cavity (202), and the detection cavity (202) is connected to one end of the hot rolling mill body (1).

3. The anti-wrinkle device for hot rolling mills used in thin strip steel production according to claim 1, characterized in that, The detection wheel (203) is rotatably connected to the bottom of the telescopic pile (204), and the telescopic pile (204) forms a telescopic structure with the detection cavity (202) through the detection pile seat (205).

4. The anti-wrinkle device for hot rolling mills used in thin strip steel production according to claim 1, characterized in that, The top of the telescopic pile (204) forms an elastic telescopic structure with the detection pile base (205) through the spring telescopic rod (208), and the spring telescopic rod (208) is distributed in two sets.

5. The anti-wrinkle device for hot rolling mills used in thin strip steel production according to claim 1, characterized in that, The linkage rod (206) is fixedly connected to the top of the telescopic pile (204), and the linkage rod (206) and the pressure sensor (207) are aligned vertically.

6. The anti-wrinkle device for hot rolling mills used in thin strip steel production according to claim 1, characterized in that, The main body (1) of the hot rolling mill includes a main frame (101), a material placement platform (102) is fixed at one end of the main frame (101), a base (103) is fixed at the bottom end of the main frame (101), and a hot rolling cavity (104) is opened in the center of the main frame (101); a lower hot rolling roll (105) is distributed at the bottom end of the interior of the hot rolling cavity (104), and a hot rolling frame (106) is aligned with the top of the lower hot rolling roll (105); sliders (107) are fixed on both sides of the hot rolling frame (106), and upper hot rolling rolls (108) are axially connected to both sides of the inner wall of the hot rolling frame (106), and a hydraulic cylinder (109) is fixed at the top end of the hot rolling frame (106); a conveying frame (110) is fixed at the other end of the main frame (101), and conveying rollers (111) are arranged on the top surface of the conveying frame (110).

7. The anti-wrinkle device for hot rolling mills used in thin strip steel production according to claim 6, characterized in that, The lower hot rolling roll (105) and the upper hot rolling roll (108) are arranged vertically aligned along the hot rolling chamber (104), and the upper hot rolling roll (108) forms a lifting structure through the hot rolling frame (106) and the hydraulic cylinder (109).

8. The anti-wrinkle device for hot rolling mills used in thin strip steel production according to claim 6, characterized in that, The material placement platform (102) and the conveying frame (110) are fixedly connected to both ends of the main frame (101), and the conveying rollers (111) are arranged at equal intervals along the inside of the conveying frame (110).

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