Steel strip misalignment detection device

Abstract

This utility model provides a steel strip misalignment detection device, comprising: a frame, a guide roller, an offset structure, a measuring structure, and a protective structure; the frame extends horizontally along the direction perpendicular to the movement of the steel strip; the offset structure is slidably connected above the frame along its extension direction; the guide roller is cylindrical, with its axis vertically positioned and rotatably connected to the offset structure, and a guide roller is provided at each end of the offset structure, with the steel strip located between the two guide rollers, and the guide rollers and the steel strip in a rolling connection; the measuring structure includes an electronic ruler and an electronic ruler support, the electronic ruler support being fixed to the frame; the electronic ruler passes through and is slidably connected to the electronic ruler support along the sliding direction of the offset structure; the electronic ruler displays the relative sliding distance with respect to the electronic ruler support; the protective structure is fixed to the frame and covers the offset structure, with a gap between the upper surface of the protective structure and the lower surface of the steel strip; and the upper surface of the protective structure is higher than the bottom end of the guide roller. This application has the effect of balancing the forces on both sides of the steel strip, resulting in more accurate detection.

Description

Technical Field

[0001] This utility model belongs to the field of testing instrument technology, specifically, it relates to a steel strip deviation detection device. Background Technology

[0002] In manufacturing, equipment using steel belts as carriers is an indispensable part. Whether in film manufacturing, sheet manufacturing, or multi-layer composites, the use of steel belt equipment is essential. Steel belt conveyors are a crucial component of modern continuous production processes. During steel belt conveying, the conveyed material is at a high temperature, and the bottom of the steel belt is often cooled by water spray. The operating environment is harsh, and abnormalities such as unstable feeding and uneven material distribution can occur, leading to uneven heating of the steel belt and a certain degree of irregular deformation. This results in frequent and highly random deviations of the steel belt during operation, often causing unplanned shutdowns of the equipment system and seriously affecting the safety, stability, long-term operation, and full-load operation of the equipment.

[0003] Patent document CN209192941U discloses a steel strip misalignment detection device, including a support, a drive device, a displacement detection device, a transmission device, and a guide roller device, wherein: the drive device, displacement detection device, and transmission device are fastened to the support; the guide roller device is mounted on the transmission device; the drive device connects to the guide roller device and drives the guide roller device to move along the transmission direction of the transmission device. This invention has a reasonable structure, stable performance, long service life, and low cost; it indirectly measures the steel strip misalignment by detecting the offset of the displacement stop block using a displacement sensor, which is both accurate and convenient; and by having the guide roller contact the steel strip, the rotation of the guide roller greatly reduces the damage rate of the device.

[0004] However, in patent document CN209192941U, the displacement detection device forms contact with the steel strip through a single-sided connection, and the driving and force of the guide roller device are concentrated on one side. This single-sided action structure has an unavoidable technical defect: the single-sided contact force will disrupt the force balance of the steel strip during operation. Regardless of the magnitude of the contact force, it will cause the steel strip to deviate from its original stable running trajectory, producing additional unexpected offsets. This results in deviations in the deviation measured indirectly by the displacement sensor through the displacement stop, affecting the accuracy of the detection data.

[0005] To achieve balanced force on both sides of the steel strip and more accurate detection, this invention designs a steel strip deviation detection device, solving the aforementioned problems. Utility Model Content

[0006] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a steel strip deviation detection device.

[0007] A steel strip deviation detection device according to the present invention includes: a frame, a guide roller, an offset structure, a measuring structure, and a protective structure; the frame extends horizontally along the direction perpendicular to the movement of the steel strip; The offset structure is slidably connected to the frame above it along the extension direction; the guide roller is cylindrical, with its axis vertically set and rotatably connected to the offset structure, and a guide roller is set at each end of the offset structure, with the steel strip located between the two guide rollers, and the guide roller and the steel strip are in rolling connection. The measuring structure includes an electronic ruler and an electronic ruler support, with the electronic ruler support fixed to the frame; the electronic ruler passes through and slides along the sliding direction of the offset structure to the electronic ruler support; the electronic ruler displays the relative sliding distance with respect to the electronic ruler support; the protective structure is fixed to the frame and covers the offset structure, with a gap between the upper surface of the protective structure and the lower surface of the steel strip; and the upper surface of the protective structure is higher than the bottom of the guide roller.

[0008] Preferably, the offset structure includes a slide rail, a bracket, and a connecting rod; the slide rail is fixed to both ends of the frame; the bracket is slidably connected to the slide rail, and the sliding direction of the bracket is set along the extension direction of the frame; the guide roller is rotatably connected to the top of the bracket; and the connecting rod is fixedly connected to the brackets on both sides.

[0009] Preferably, the electronic ruler is fixedly connected to a support on one side.

[0010] Preferably, the protective structure includes a support plate bracket and a support plate; the support plate bracket is fixed at both ends of the frame along the moving direction of the steel strip; the support plate is fixed above the support plate bracket; the support plate bracket and the support plate are covered above the connecting rod; the upper surface of the support plate is higher than the lower end of the guide roller, and a gap is left between the lower surface of the steel strip and the upper surface of the support plate.

[0011] Preferably, the guide roller includes a bearing housing and a bearing; the bearing housing is fixed to the two side supports and extends vertically; the bearing is sleeved on the bearing housing.

[0012] Preferably, the guide roller further includes a roller body; the roller body is sleeved outside the bearing.

[0013] Preferably, the bearing is a ceramic bearing.

[0014] Preferably, the bearing is a stainless steel bearing.

[0015] Preferably, the slide is a ball bearing slide.

[0016] Preferably, the slide is a roller slide.

[0017] Compared with existing technologies, this invention has the following advantages: The guide rollers rotate with the support via bearings, and their rotational characteristics allow them to form a tight and smooth fit with the side of the steel strip. This design does not hinder the normal movement of the steel strip and can also transmit displacement in real time following the deviation trend of the steel strip, effectively reducing measurement lag caused by gaps and further improving detection accuracy. At the same time, the symmetrically arranged guide rollers on both sides form a bidirectional limit, keeping the steel strip under balanced force and avoiding additional deviation caused by uneven force on one side. Structurally, this avoids interference from the measuring mechanism on the stability of the steel strip operation. Attached Figure Description

[0018] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a perspective view of the present invention.

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the guide roller of this utility model.

[0021] The diagram shows: 1. Baffle roller; 2. Bracket; 3. Connecting rod; 4. Support plate; 5. Slide rail; 6. Frame; 7. Support plate bracket; 8. Electronic ruler; 9. Electronic ruler bracket; 10. Steel strip. Detailed Implementation

[0022] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0023] like Figures 1-3As shown, a steel strip misalignment detection device includes: a frame 6, a guide roller 1, an offset structure, a measuring structure, and a protective structure. The frame 6 extends horizontally along a direction perpendicular to the movement of the steel strip 10. The offset structure is slidably connected above the frame 6 along its extension direction. The guide roller 1 is cylindrical, vertically centered, and rotatably connected to the offset structure. One guide roller 1 is located at each end of the offset structure, and the steel strip 10 is positioned between the two guide rollers 1, with the guide roller 1 and the steel strip 10 in a rolling connection. The measuring structure includes an electronic ruler 8 and an electronic ruler support 9, with the electronic ruler support 9 fixed to the frame 6. The electronic ruler 8 passes through and is slidably connected to the electronic ruler support 9 along the sliding direction of the offset structure. The electronic ruler 8 displays the relative sliding distance with respect to the electronic ruler support 9. The protective structure is fixed to the frame 6 and covers the offset structure, with a gap between the upper surface of the protective structure and the lower surface of the steel strip 10. The upper surface of the protective structure is higher than the bottom end of the guide roller 1.

[0024] The working principle of this application is as follows: When the steel belt 10 is running normally, the two side guide rollers 1 are in close contact with the sides of the steel belt 10, and the bracket 2 is kept horizontally stable through the slide rail 5. When the steel belt 10 deviates to the left or right, its side will push the guide roller 1 on one side, causing the bracket 2 to slide synchronously along the slide rail 5. The two brackets 2 are linked together through the connecting rod 3 to ensure synchronous displacement. One end of the electronic ruler 8 is fixed to the bracket 2, and the other end is synchronously connected to the electronic ruler bracket 9 fixed on the frame 6. The displacement of the bracket 2 is directly converted into the extension and retraction of the electronic ruler 8, outputting accurate deviation data in real time, and realizing dynamic monitoring of the deviation of the steel belt 10. At the same time, the support plate 4 of the protective structure is installed below the steel belt 10. When the steel belt 10 sags, it will first contact the support plate 4 to avoid friction damage to components such as the connecting rod 3.

[0025] Furthermore, the guide roller 1 rotates with the bracket 2 via bearings, and its rotational characteristics allow it to form a tight and smooth fit with the side of the steel strip 10. This design does not hinder the normal movement of the steel strip 10, and can also transmit displacement in real time according to the deviation trend of the steel strip 10, effectively reducing the measurement lag caused by gaps and further improving detection accuracy. At the same time, the symmetrically arranged guide rollers 1 on both sides form a bidirectional limit, keeping the force on the steel strip 10 balanced and avoiding additional deviation caused by uneven force on one side. Structurally, this avoids interference from the measuring mechanism on the running stability of the steel strip 10.

[0026] Specifically, the offset structure includes slide rails 5, brackets 2, and connecting rods 3. Slide rails 5 are fixed to both ends of the frame 6. Each slide rail 5 has a bracket 2 slidably connected to it, and the sliding direction of the bracket 2 is set along the extension direction of the frame 6. Each bracket 2 is equipped with a stop roller 1. Driven by the stop rollers 1 on both sides, the steel strip 10 moves the bracket 2 laterally. The stop rollers 1 reduce the resistance generated when the steel strip 10 moves back and forth, thus protecting the steel strip 10 from damage. Connecting rods 3 are fixedly connected to the brackets 2 on both sides, and an electronic ruler 8 is fixedly connected to one side of the bracket 2. The electronic ruler 8 moves synchronously with the bracket 2, thereby reading the actual displacement of the steel strip 10 in real time.

[0027] In one embodiment, the slide 5 includes at least one of a ball slide or a roller slide.

[0028] Specifically, the protective structure includes a support plate bracket 7 and a support plate 4. The support plate bracket 7 is fixed to the front and rear ends of the frame 6 along the moving direction of the steel strip 10. The support plate 4 is fixed above the support plate bracket 7. The support plate bracket 7 and the support plate 4 cover the connecting rod 3. The upper surface of the support plate 4 is higher than the lower end of the guide roller 1 to prevent the steel strip 10 from derailing from the guide roller 1. A gap is left between the lower surface of the steel strip 10 and the upper surface of the support plate 4 to reduce unnecessary friction. This prevents the steel strip 10 from sag in a loose state and directly rub against parts other than the guide roller 1, thereby damaging the steel strip 10.

[0029] In one embodiment, the guide roller 1 includes a roller body, a bearing housing, and a bearing. The bearing housing is fixed to the two side supports 2 and extends vertically. One bearing is fitted onto each bearing housing. The roller body is fitted over the bearing.

[0030] In one embodiment, the bearing includes at least one of a ceramic bearing or a stainless steel bearing.

[0031] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A device for detecting steel strip misalignment, characterized in that, include: Frame (6), guide roller (1), offset structure, measuring structure and protective structure; The frame (6) is set horizontally in the direction perpendicular to the movement of the steel strip (10); The offset structure is slidably connected above the frame (6) along the extension direction of the frame; The guide roller (1) is cylindrical, with its axis vertically positioned and rotatably connected to the offset structure. Each end of the offset structure has a guide roller (1), and the steel strip (10) is located between the two guide rollers (1). The guide roller (1) and the steel strip (10) are in rolling connection. The measuring structure includes an electronic ruler (8) and an electronic ruler bracket (9). The electronic ruler bracket (9) is fixed to the frame (6). The electronic ruler (8) is inserted through and slidably connected to the electronic ruler bracket (9) along the sliding direction of the offset structure. The electronic ruler (8) displays the relative sliding distance with the electronic ruler bracket (9). The protective structure is fixed to the frame (6) and covers the offset structure. There is a gap between the upper surface of the protective structure and the lower surface of the steel strip (10). The upper surface of the protective structure is higher than the bottom of the guide roller (1).

2. The steel strip misalignment detection device according to claim 1, characterized in that, The offset structure includes a slide (5), a bracket (2) and a connecting rod (3); the slide (5) is fixed to both ends of the frame (6); the bracket (2) is slidably connected to the slide (5), and the sliding direction of the bracket (2) is set along the extension direction of the frame (6); the stop roller (1) is rotatably connected above the bracket (2); the connecting rod (3) is fixedly connected to the brackets (2) on both sides.

3. The steel strip misalignment detection device according to claim 2, characterized in that, The electronic ruler (8) is fixedly connected to a bracket (2) on one side.

4. The steel strip misalignment detection device according to claim 3, characterized in that, The protective structure includes a support plate bracket (7) and a support plate (4); the support plate bracket (7) is fixed at both ends of the frame (6) along the moving direction of the steel strip (10); the support plate (4) is fixed above the support plate bracket (7); the support plate bracket (7) and the support plate (4) are covered above the connecting rod (3); the upper surface of the support plate (4) is higher than the lower end of the guide roller (1), and there is a gap between the lower surface of the steel strip (10) and the upper surface of the support plate (4).

5. The steel strip misalignment detection device according to claim 3, characterized in that, The retaining roller (1) includes a bearing seat and a bearing; the bearing seat is fixed to the two side supports (2) and extends vertically; the bearing is sleeved on the bearing seat.

6. The steel strip misalignment detection device according to claim 5, characterized in that, The retaining roller (1) also includes a roller body; the roller body is sleeved outside the bearing.

7. The steel strip misalignment detection device according to claim 5, characterized in that, The bearing is a ceramic bearing.

8. The steel strip misalignment detection device according to claim 5, characterized in that, The bearing is a stainless steel bearing.

9. The steel strip misalignment detection device according to claim 2, characterized in that, The slide (5) is a ball bearing slide.

10. The steel strip misalignment detection device according to claim 2, characterized in that, The slide (5) is a roller slide.

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