Steel strip on-line position limiting device

Abstract

The utility model relates to steel pipe processing technical field especially a kind of steel band online limiting device, including base, two groups of front and rear interval arrangement installation height limiting assembly on base, width limiting assembly being set in the middle place of the front and rear position of two groups of height limiting assembly and height adjusting assembly for adjusting the height of width limiting assembly installed on base, height limiting assembly includes two horizontal rollers, width limiting assembly includes width-limiting seat being installed at the output end of height adjusting assembly, two first sliding blocks being oppositely arranged and being slidably connected with width-limiting seat, two groups of vertical rollers being rotatably connected with two first sliding blocks one by one and width adjusting mechanism for adjusting the spacing between two width-limiting seats, limiting groove for abutting with the left side or right side of steel band is arranged in the middle of vertical roller. Implement the utility model, can reduce the fluctuation range of steel band tension, ensure subsequent processing quality.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, and in particular to an online limiting device for steel strips. Background Technology

[0002] In the production of shaped steel pipes, the steel strip is conveyed from the feeding rack. If there is a lack of limiting devices or the limiting is not precise enough, the steel strip is prone to lateral displacement. Once the steel strip shifts, the position of the shaped groove formed by the rollers will also shift accordingly, significantly affecting subsequent processing. During forming, the shaped groove displacement prevents the mold from machining precisely, leading to a decrease in the dimensional accuracy of the steel pipe. Uneven stress on the mold accelerates wear, affecting mold life and forming quality. During welding, the shaped groove displacement causes the weld position to deviate from the design, easily resulting in defects such as incomplete penetration and slag inclusions, reducing the strength and airtightness of the steel pipe, and even scrapping it. During cutting, displacement leads to a decrease in cutting accuracy, increases the scrap rate, and affects the product's appearance and dimensional accuracy.

[0003] Furthermore, fluctuations in the steel strip's conveyor speed and its vertical movement alter its concave shape, leading to significant tension fluctuations and further exacerbating problems in subsequent processes. During forming, tension fluctuations cause uneven deformation of the steel strip, affecting the forming effect; during welding, tension fluctuations make the weld unstable, reducing weld quality; and during cutting, tension fluctuations affect equipment operation and cutting accuracy.

[0004] Currently, common technologies use two sets of left and right spaced limit rollers to restrict the left and right swing of the steel strip, but there are shortcomings: after the steel strip is output from the feeding rack, it is suspended and concave due to gravity. Subsequent processing steps cause fluctuations in the conveying speed of the steel strip, and the up and down jumping of the steel strip changes the concave shape, aggravates tension fluctuations, and seriously affects the quality of subsequent processing. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an online limiting device for steel strips, which can ensure the quality of subsequent processing.

[0006] To solve the above-mentioned technical problems, this utility model provides an online limiting device for steel strip, including a base, two sets of height limiting components installed on the base with a front-to-back gap, a width limiting component set at the middle of the front and back positions of the two sets of height limiting components, and a height adjustment component installed on the base for adjusting the height of the width limiting component. The height limiting component includes two horizontal rollers that are horizontally spaced and rotatably connected to the base. The width limiting component includes a width limiting seat installed at the output end of the height adjustment component, two first slides that are arranged opposite each other and slidably connected to the width limiting seats, two sets of vertical rollers that are rotatably connected to the two first slides, and a width adjustment mechanism for adjusting the distance between the two width limiting seats. The vertical rollers have a limiting groove in the middle for abutting against the left or right side of the steel strip.

[0007] As an improvement to the above solution, the height adjustment assembly includes multiple mounting vertical rods fixedly installed on the base and an adjustment sleeve whose inner side is threaded to the outer side of the mounting vertical rods and used to support the width limiting seat.

[0008] As an improvement to the above solution, the width limiting seat is provided with multiple mounting through holes through which multiple adjusting sleeves pass in a corresponding manner. A support ring for supporting the lower side of the width limiting seat is fixedly provided on the lower side of the width limiting seat, and a clamping nut for abutting against the upper side of the width limiting seat is threadedly connected to the outer side of the adjusting sleeve.

[0009] As an improvement to the above solution, the upper side of the adjusting sleeve is provided with a square head for driving the adjusting sleeve to rotate.

[0010] As an improvement to the above solution, the rotation axis of the square head coincides with the rotation axis of the adjusting sleeve. The height adjustment component is provided with four adjusting sleeves arranged in a rectangular pattern. The height adjustment component also includes four rotating wheels that are one-to-one connected to the four square heads and a synchronous belt that drives the four rotating wheels to rotate synchronously.

[0011] As an improvement to the above solution, the width limiting seat is provided with two guide rods that are spaced apart front and back and are slidably connected to the two first slides. The width adjustment mechanism includes a horizontal lead screw that is rotatably connected to the width limiting seat and is located in the middle of the two guide rods. The horizontal lead screw is provided with a first threaded section and a second threaded section with opposite directions of rotation and equal lead. The two first slides are threadedly connected to the first threaded section and the second threaded section respectively.

[0012] As an improvement to the above scheme, each set of vertical rollers includes two vertical rollers spaced apart front to back, and two guide rods are arranged between the rotation axis lines of the front and back vertical rollers.

[0013] As an improvement to the above solution, the width of the limiting groove gradually decreases from the outside to the inside along the radial direction of the vertical roller.

[0014] As an improvement to the above solution, the height limiting component further includes a second slide block that is slidably connected to the base and a height adjustment mechanism installed on the base for adjusting the vertical position of the second slide block. The lower horizontal roller is rotatably connected to the base, and the upper horizontal roller is rotatably connected to the second slide block.

[0015] As an improvement to the above solution, the height adjustment mechanism includes a vertical lead screw that is threaded to the base on the outside and rotatably connected to the second slide at the lower end, and a handwheel fixed to the upper end of the vertical lead screw.

[0016] Implementing this utility model has the following beneficial effects:

[0017] The online limiting device for steel strip of this utility model works together with a base, a height limiting component, a width limiting component, and a height adjustment component to keep the shape of the steel strip nearly stable during the steel strip conveying process and prevent the steel strip from shifting left and right and jumping up and down within a certain range. This counteracts the influence of subsequent processing steps on the tension fluctuation of the steel strip, reduces the range of tension fluctuation of the steel strip, and ensures the quality of subsequent processing. Attached Figure Description

[0018] Figure 1 This is a schematic left view of the steel strip online limiting device in this embodiment of the present invention;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the height limiting component installed on the base in an embodiment of this utility model;

[0021] Figure 4 This is a top view illustrating the structure of the online limiting device for steel strip in this embodiment of the present invention;

[0022] Figure 5 for Figure 4 Enlarged view at point B;

[0023] Figure 6 This is a schematic diagram illustrating the working principle of the height adjustment component in this embodiment of the present invention.

[0024] In the picture:

[0025] 100. Base;

[0026] 200. Height limiting assembly; 210. Horizontal roller; 220. Second slide; 230. Height adjustment mechanism; 231. Vertical lead screw; 232. Handwheel;

[0027] 300. Width limiting assembly; 310. Width limiting seat; 311. Mounting through hole; 312. Guide rod; 320. First slide; 330. Vertical roller; 331. Limiting groove; 340. Width adjustment mechanism; 341. Horizontal lead screw; 342. First threaded section; 343. Second threaded section;

[0028] 400. Height adjustment assembly; 410. Mounting rod; 420. Adjusting sleeve; 430. Support ring; 440. Compression nut; 450. Square head; 460. Rotary wheel; 470. Synchronous belt. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0031] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The present invention will now be described in further detail with reference to the accompanying drawings.

[0034] like Figures 1 to 6 As shown in the figure, an online steel strip limiting device according to an embodiment of the present invention includes a base 100, two sets of height limiting components 200 installed on the base 100 at intervals, a width limiting component 300 positioned between the front and rear positions of the two sets of height limiting components 200, and a height adjusting component 400 installed on the base 100 for adjusting the height of the width limiting component 300. In practice, the online steel strip limiting device of the present invention is installed on a special-shaped steel pipe production line via the base 100 and positioned between the steel strip uncoiling process and the steel pipe forming, welding, and cutting processes, for limiting the steel strip leaving the uncoiling process and about to enter the forming process; the height adjusting component 400 can be a screw and nut pair, a gear and rack combination, or a servo telescopic cylinder, etc., for adjusting the height of the width limiting component 300.

[0035] The height limiting component 200 includes two horizontal rollers 210 that are horizontally spaced apart and rotatably connected to the base 100. In fact, the rotation axes of the two horizontal rollers 210 extend horizontally and are parallel to the horizontal plane, and the gap between the two horizontal rollers 210 matches the thickness of the steel strip, thereby limiting the height of the steel strip at the location of the height limiting component 200.

[0036] The width limiting component 300 includes a width limiting seat 310 installed at the output end of the height adjustment component 400, two first slides 320 arranged opposite each other and slidably connected to the width limiting seat 310, two sets of vertical rollers 330 rotatably connected to the two first slides 320, and a width adjustment mechanism 340 for adjusting the distance between the two width limiting seats 310. The vertical rollers 330 have a limiting groove 331 in the middle for abutting against the left or right side of the steel strip. In practice, the rotation axes of the two sets of vertical rollers 330 extend vertically and are perpendicular to the horizontal plane. The limiting groove 331 allows the left or right part of the steel strip to extend into and abut against the left or right side of the steel strip, thereby limiting the left-right displacement of the steel strip. The width adjustment mechanism 340 can adjust the distance between the two first slides 320 through a screw and nut pair, hydraulic cylinder or pneumatic cylinder, lead screw and nut pair, and motor, thereby adjusting the distance between the two sets of vertical rollers 330 to accommodate steel strips of different widths.

[0037] The specific working principle of the online steel strip limiting device of this utility model is as follows: The steel strip leaving the unwinding process first passes between the two horizontal rollers 210 of the rear height limiting component 200, then passes through the limiting grooves 331 of the two sets of vertical rollers 330 arranged opposite each other, and finally passes between the two horizontal rollers 210 of the front height limiting component 200 to enter the forming process; the height of the width limiting component 300 is adjusted by the height adjustment component 400, so that the steel strip passing through the two sets of height limiting components 200 and the width limiting component 300 forms the required shape that is close to convex, concave or flat. During the steel strip conveying process, the shape of the steel strip is kept close to stable and the steel strip is prevented from shifting left and right and jumping up and down within a certain range, so as to offset the influence of subsequent processing steps on the tension fluctuation of the steel strip.

[0038] The online limiting device for steel strip of this utility model works together with a base 100, a height limiting component 200, a width limiting component 300, and a height adjustment component 400 to keep the shape of the steel strip nearly stable during the steel strip conveying process and prevent the steel strip from shifting left and right or jumping up and down within a certain range. This counteracts the influence of subsequent processing steps on the tension fluctuation of the steel strip, reduces the range of tension fluctuation of the steel strip, and ensures the quality of subsequent processing.

[0039] Specifically, the height adjustment assembly 400 preferably includes multiple mounting vertical rods 410 fixedly installed on the base 100 and adjustment sleeves 420 whose inner sides are threadedly connected to the outer sides of the mounting vertical rods 410 and used to support the width limiting seat 310. In fact, the multiple adjustment sleeves 420 jointly support the width limiting seat 310. By rotating each adjustment sleeve 420, under the limiting and guiding action of the mounting vertical rods 410, the height of the multiple adjustment sleeves 420 can be adjusted synchronously or separately. As the height of the adjustment sleeves 420 changes, the vertical position of the width limiting seat 310 changes accordingly, thereby realizing the adjustment of the overall height of the width limiting assembly 300.

[0040] It should be noted that the threaded connection between the adjusting sleeve 420 and the mounting rod 410 has corresponding self-locking properties, which can prevent loosening to a certain extent. Furthermore, all threaded connections involved in this application have similar self-locking capabilities; the specific structure and self-locking principle of such threaded connections will not be elaborated upon here.

[0041] More specifically, the width limiting seat 310 preferably has a plurality of mounting through holes 311 through which a plurality of adjusting sleeves 420 pass in a corresponding manner. A support ring 430 for supporting the lower side of the width limiting seat 310 is fixedly provided on the lower side of the width limiting seat 310. A clamping nut 440 for abutting against the upper side of the width limiting seat 310 is threadedly connected to the outer side of the adjusting sleeve 420. In practice, when the height of the width limiting seat 310 needs to be adjusted, the clamping nut 440 can be unscrewed first, disengaging it from the upper side of the width limiting seat 310. At this point, under the limiting action of the mounting rod 410, the width limiting seat 310 can move up and down along the axial direction of the adjusting sleeve 420, thereby changing its vertical position and adjusting the height of the width limiting component 300. After the adjusting sleeve 420 is adjusted to the appropriate height, the clamping nut 440 is tightened again, re-clamping it against the upper side of the width limiting seat 310, thus locking the width limiting seat 310 at its current height. By providing a mounting through hole 311 on the width limiting seat 310, and in conjunction with the design of the support ring 430 and the clamping nut 440, the width limiting seat 310 can be adjusted vertically without being removed during height adjustment. The threaded connection between the clamping nut 440 and the adjusting sleeve 420 provides a reliable locking mechanism, ensuring that the width limiting seat 310 maintains a stable height position after locking and will not be displaced due to factors such as vibration during equipment operation, thereby ensuring the stability and reliability of the width limiting component 300.

[0042] Furthermore, the upper side of the adjusting sleeve 420 is preferably provided with a square head 450 for driving the adjusting sleeve 420 to rotate. When it is necessary to adjust the height of the adjusting sleeve 420, the operator can use a wrench or other tools to clamp the square head 450, thereby driving the adjusting sleeve 420 to rotate.

[0043] Furthermore, the rotation axis of the square head 450 preferably coincides with the rotation axis of the adjusting sleeve 420. The height adjustment assembly 400 has four adjusting sleeves 420 arranged in a rectangular pattern. The height adjustment assembly 400 also includes four rotating wheels 460 that are one-to-one engaged with the four square heads 450, and a synchronous belt 470 that drives the four rotating wheels 460 to rotate synchronously. In fact, the rotating wheel 460 may have a slot for engaging with the square head 450, realizing a detachable connection between the rotating wheel 460 and the square head 450. When the height needs to be adjusted, the synchronous belt 470 is driven by external force to move, and the synchronous belt 470 drives the four rotating wheels 460 to rotate synchronously. Since the rotating wheel 460 is engaged with the square head 450, when the rotating wheel 460 rotates, the square head 450 rotates accordingly, thereby driving the four adjusting sleeves 420 to rotate synchronously. The four adjusting sleeves 420 are linked by the synchronous belt 470 to ensure synchronous lifting and lowering so that the width limiting seat 310 can be raised and lowered smoothly. The synchronous adjustment of multiple adjusting sleeves 420 ensures uniform force distribution on the width limiting seat 310, improving its levelness and stability; the four adjusting sleeves 420 arranged in a rectangular pattern enhance structural stability and increase the load-bearing capacity of the width limiting seat 310.

[0044] It should be noted that the width limiting seat 310 preferably has two guide rods 312 spaced apart front and rear and slidably connected to the two first slides 320. The width adjustment mechanism 340 includes a horizontal lead screw 341 rotatably connected to the width limiting seat 310 and disposed between the two guide rods 312. The horizontal lead screw 341 has a first threaded section 342 and a second threaded section 343 with opposite directions of rotation and equal leads. The two first slides 320 are threadedly connected to the first threaded section 342 and the second threaded section 343 respectively. When the horizontal lead screw 341 rotates, since the first threaded section 342 and the second threaded section 343 have opposite directions of rotation and equal leads, the two first slides 320 will move synchronously in opposite directions or in opposite directions along the guide rods 312, thereby adjusting the distance between the two vertical rollers 330 and thus meeting the limiting requirements of steel strips of different widths. In fact, during initial installation or adjustment, the left and right center positions of the two first slide blocks 320 must be aligned with the left and right center positions of the subsequent processing steps through measurement, positioning and other means. Since the two first slide blocks 320 move synchronously and equidistantly in opposite directions, the width limiting component 300 can have the centering function.

[0045] Furthermore, each set of vertical rollers 330 preferably includes two vertical rollers 330 spaced apart front and rear, and two guide rods 312 are disposed between the rotation axis lines of the front and rear vertical rollers 330. This layout can extend the width limiting range, and by increasing the limiting length, the steel strip is subject to a wider range of limiting constraints during conveying, thereby improving the stability of the width limiting.

[0046] Specifically, the width of the limiting groove 331 preferably gradually decreases from the outside to the inside along the radial direction of the vertical roller 330. This allows the left or right part of the steel strip to more easily extend into the limiting groove 331, improving the continuity of steel strip conveying.

[0047] It is worth mentioning that the height limiting component 200 preferably includes a second slide block 220 that is slidably connected to the base 100 vertically, and a height adjustment mechanism 230 mounted on the base 100 for adjusting the vertical position of the second slide block 220. The lower horizontal roller 210 is rotatably connected to the base 100, and the upper horizontal roller 210 is rotatably connected to the second slide block 220. In practice, the height adjustment mechanism 230 can be a lead screw and nut pair, a gear and rack combination, or a servo telescopic cylinder, etc., for adjusting the height of the second slide block 220 relative to the base 100. By changing the height of the second slide block 220 relative to the base 100, the gap distance between the two horizontal rollers 210 is changed to adapt to steel strips of different thicknesses within a certain range.

[0048] Furthermore, the height adjustment mechanism 230 preferably includes a vertical lead screw 231 whose outer side is threaded to the base 100 and whose lower end is rotatably connected to the second slide block 220, and a handwheel 232 fixed to the upper end of the vertical lead screw 231. When the handwheel 232 is rotated, the vertical lead screw 231 rotates vertically relative to the base 100 under the action of the thread. Since the vertical lead screw 231 is rotatably connected to the second slide block 220, the rotation of the lead screw will drive the second slide block 220 to move up and down vertically. As the second slide block 220 moves up and down, the distance between the upper horizontal roller 210 and the lower horizontal roller 210 changes accordingly, thereby realizing the adjustment of the distance between the two horizontal rollers 210.

[0049] The above are merely specific embodiments of this utility model and do not limit the patent scope of this utility model. Although embodiments of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents. Those skilled in the art can make various other corresponding changes and modifications based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A steel strip on-line position limiting device, characterized by: The device includes a base, two sets of height limiting components mounted on the base at a distance from each other, a width limiting component positioned between the front and rear of the two sets of height limiting components, and a height adjusting component mounted on the base for adjusting the height of the width limiting component. The height limiting component includes two horizontally spaced rollers that are rotatably connected to the base. The width limiting component includes a width limiting seat mounted at the output end of the height adjusting component, two first slides that are slidably connected to the width limiting seat from left to right, two sets of vertical rollers that are rotatably connected to the two first slides, and a width adjusting mechanism for adjusting the distance between the two width limiting seats. The vertical rollers have a limiting groove in the middle for abutting against the left or right side of the steel strip.

2. The online limiting device for steel strip as described in claim 1, characterized in that: The height adjustment assembly includes multiple mounting vertical rods fixedly installed on the base and an adjustment sleeve whose inner side is threaded to the outer side of the mounting vertical rods and used to support the width limiting seat.

3. The online limiting device for steel strip as described in claim 2, characterized in that: The width limiting seat is provided with multiple mounting through holes through which multiple adjusting sleeves pass in a corresponding manner. A support ring for supporting the lower side of the width limiting seat is fixedly provided on the lower side of the width limiting seat. A clamping nut for abutting against the upper side of the width limiting seat is threaded to the outer side of the adjusting sleeve.

4. The online limiting device for steel strip as described in claim 3, characterized in that: The upper side of the adjusting sleeve is provided with a square head for driving the adjusting sleeve to rotate.

5. The online limiting device for steel strip as described in claim 4, characterized in that: The rotation axis of the square head coincides with the rotation axis of the adjusting sleeve. The height adjustment assembly has four adjusting sleeves arranged in a rectangular pattern. The height adjustment assembly also includes four rotating wheels that are one-to-one connected to the four square heads and a synchronous belt that drives the four rotating wheels to rotate synchronously.

6. The online limiting device for steel strip as described in claim 1, characterized in that: The width limiting seat is provided with two guide rods that are spaced apart front and back and are slidably connected to the two first slides. The width adjustment mechanism includes a horizontal lead screw that is rotatably connected to the width limiting seat and is located in the middle of the two guide rods. The horizontal lead screw is provided with a first threaded section and a second threaded section with opposite directions of rotation and equal lead. The two first slides are threadedly connected to the first threaded section and the second threaded section respectively.

7. The online limiting device for steel strip as described in claim 6, characterized in that: Each set of vertical rollers includes two vertical rollers spaced apart front to back, and two guide rods are arranged between the rotation axis lines of the front and back vertical rollers.

8. The online limiting device for steel strip as described in claim 1, characterized in that: The width of the limiting groove gradually decreases from the outside to the inside along the radial direction of the vertical roller.

9. The online limiting device for steel strip as described in claim 1, characterized in that: The height limiting assembly also includes a second slide block that is slidably connected to the base and a height adjustment mechanism installed on the base for adjusting the vertical position of the second slide block. The lower horizontal roller is rotatably connected to the base, and the upper horizontal roller is rotatably connected to the second slide block.

10. The online limiting device for steel strip as described in claim 9, characterized in that: The height adjustment mechanism includes a vertical lead screw that is threaded to the base on the outside and rotatably connected to the second slide at the bottom, and a handwheel fixed to the upper end of the vertical lead screw.

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