Variable diameter guide roller for pipe conveying

Abstract

The utility model belongs to the field of pipe cutting equipment, concretely relates to a variable diameter guide roller for pipe conveying. The utility model provides a variable diameter guide roller for pipe conveying, which comprises: the arc surface of the roller is provided with a plurality of arc grooves, the plurality of arc grooves are sequentially connected around the arc surface, the cross section diameters of the arc grooves are arranged from large to small, the distance from the cross section center of the arc groove to the axis of the roller is equal, and the axis lines of adjacent arc grooves form an obtuse angle. The utility model provides a variable diameter guide roller for pipe conveying, each arc groove can be used to hold pipe materials of different thicknesses, only needs to rotate the roller around the axis line by an angle during use, is simple to operate, does not need to replace the roller, and reduces the labor cost and production cost. The utility model can adjust the placing angle of the arc groove, can make the arc groove contact the pipe material with the maximum area, and improves the stability of holding.

Description

Technical Field

[0001] This utility model belongs to the field of pipe cutting equipment, specifically relating to a variable diameter guide roller for pipe conveying. Background Technology

[0002] In the pipe processing industry, the cutting process is a crucial step in achieving fixed-length pipe applications, and stable pipe transport during the cutting process is a core prerequisite for ensuring cutting accuracy and production continuity. Currently, the mainstream pipe transport method in the industry relies on roller conveyor mechanisms. By machining grooves of specific dimensions on the outer circumference of the rollers, the grooves fit snugly against the outer circumference of the pipe, supporting the pipe and limiting radial displacement during transport. This prevents cutting deviations caused by pipe swaying and meets basic processing requirements.

[0003] However, in actual production scenarios, the application requirements for pipes vary greatly, resulting in a significant diversity in pipe outer diameter specifications. Because the groove size of existing rollers is a fixed structure, their compatibility is strictly limited to pipes with specific outer diameters. When faced with pipes whose outer diameter is smaller than the groove's compatibility size, the pipe is prone to radial movement within the groove, which not only disrupts the stability of the conveying trajectory but also causes quality problems such as insufficient flatness of the cut end face and out-of-tolerance dimensional accuracy. If the pipe's outer diameter is larger than the groove's compatibility size, the pipe cannot be properly embedded in the groove and may even experience hard friction with the roller's edge, potentially scratching the pipe surface and accelerating roller wear, thus affecting the equipment's service life.

[0004] To accommodate different pipe specifications, the production process necessitates frequent replacement of rollers with corresponding groove sizes. Replacing rollers requires halting the entire cutting production line, disassembling the roller shaft assembly, replacing the new rollers, recalibrating and tightening them—a cumbersome and time-consuming process that not only disrupts production continuity and reduces overall equipment efficiency but also demands a high level of operator skill. Furthermore, frequent disassembly and assembly exacerbates wear on shaft components, shortening equipment maintenance cycles and lifespan. Simultaneously, companies must maintain a stock of spare rollers in various specifications to meet different pipe processing needs, undoubtedly increasing spare parts procurement and storage costs. These issues hinder improvements in pipe cutting efficiency and lead to continuously increasing production costs, becoming a bottleneck restricting the industry's pursuit of high-efficiency, low-cost production. Utility Model Content

[0005] This utility model provides a variable diameter guide roller for pipe conveying, which can effectively solve the problems in the background art.

[0006] This utility model provides a variable diameter guide roller for pipe conveying, comprising:

[0007] The roller has several arc-shaped grooves on its arc-shaped surface. The arc-shaped grooves are connected one after another around the arc-shaped surface. The cross-sectional diameters of the arc-shaped grooves are arranged from large to small. The distance from the center of the cross-section of the arc-shaped groove to the axis of the roller is equal. The axis of adjacent arc-shaped grooves forms an obtuse angle.

[0008] As a further optimization of this utility model, the centerlines of adjacent arc-shaped grooves are at 165°.

[0009] As a further optimization of this utility model, the cross-section of the arc-shaped groove is semi-circular.

[0010] As a further optimization of this utility model, it also includes a bracket with one end fixed to the end face of the roller.

[0011] As a further optimization of this utility model, the other end of the bracket is hinged; it also includes a linear drive mechanism with one end hinged and the other end hinged to the bracket, the output direction of the linear drive mechanism being perpendicular to the axis of the roller.

[0012] As a further optimization of this utility model, the linear drive mechanism is a cylinder.

[0013] As a further optimization of this utility model, the roller and the bracket are rotatably connected.

[0014] As a further optimization of this utility model, the side wall of the roller is provided with several positioning holes; the bracket is provided with through holes corresponding to the positioning holes; and it also includes a positioning pin that can pass through the through hole at one end and be inserted into the positioning hole to limit the rotation of the roller.

[0015] As a further optimization of this utility model, one end of the positioning pin is threadedly connected to the through hole.

[0016] As a further optimization of this utility model, the other end of the positioning pin is provided with a handle perpendicular to the positioning pin.

[0017] This invention provides a variable diameter guide roller for pipe conveying. Each arc-shaped groove is suitable for supporting pipes of different diameters. In use, simply rotate the roller around its axis at an angle; operation is simple, eliminating the need to replace rollers and reducing labor and production costs. This invention allows adjustment of the arc-shaped groove's placement angle, maximizing contact area between the groove and the pipe, thus improving lifting stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Example 1;

[0019] Figure 2 yes Figure 1 Another perspective structural diagram;

[0020] Figure 3 yes Figure 1Structural diagram when the first groove is set;

[0021] Figure 4 yes Figure 3 Structural diagram when the second groove is set;

[0022] Figure 5 yes Figure 4 Structural diagram when the third groove is provided;

[0023] Figure 6 yes Figure 5 Structural diagram when the fourth groove is provided;

[0024] Figure 7 This is a schematic diagram of the structure after the support is installed in Example 1;

[0025] Among them, roller 1, arc-shaped groove 1a, first groove 1a1, second groove 1a2, third groove 1a3, fourth groove 1a4, positioning hole 1b, bracket 2, through hole 2a, linear drive mechanism 3, positioning pin 4, handle 5. Detailed Implementation

[0026] Example 1

[0027] like Figure 1 , 2 As shown, in this embodiment, several arc-shaped grooves 1a are provided on the arc-shaped surface of the roller 1, and the several arc-shaped grooves 1a are connected one after another to surround the entire arc-shaped surface.

[0028] like Figure 3 As shown, the specific processing of the arc-shaped groove 1a involves first opening a first groove 1a1 with a semi-circular cross-section on the arc-shaped sidewall of the roller 1. The first groove 1a1 is columnar.

[0029] After that, as Figure 4 As shown, a second groove 1a2 is provided immediately adjacent to the first groove 1a1. The cross-section of the second groove 1a2 is also semi-circular, but the diameter of the cross-section of the second groove 1a2 is smaller than that of the first groove 1a1. However, the distance from the center of the cross-section of the second groove 1a2 to the axis of the roller 1 is equal to the distance from the center of the cross-section of the first groove 1a1 to the axis of the roller 1. The second groove 1a2 is also cylindrical, and the axis of the second groove 1a2 forms a 165° angle with the axis of the first groove 1a1.

[0030] After that, such as Figure 5As shown, a third groove 1a3 is provided immediately adjacent to the second groove 1a2. The cross-section of the third groove 1a3 is also semi-circular, but the diameter of the cross-section of the third groove 1a3 is smaller than that of the second groove 1a2. However, the distance from the center of the cross-section of the third groove 1a3 to the axis of the roller 1 is equal to the distance from the center of the cross-section of the second groove 1a2 to the axis of the roller 1. The third groove 1a3 is also cylindrical, and the axis of the third groove 1a3 forms a 165° angle with the axis of the second groove 1a2.

[0031] After that, as Figure 6 As shown, a fourth groove 1a4 is set immediately next to the third groove 1a3, and so on, until the arc-shaped groove 1a rotates around the arc-shaped surface of the roller 1 once.

[0032] In other embodiments, the centerlines of adjacent arcuate grooves 1a form other obtuse angles such as 155° or 160°.

[0033] In other embodiments, the cross-section of the arc-shaped groove 1a may also be a minor arc or a semi-elliptical shape.

[0034] In this embodiment, each arc-shaped groove 1a can be used to support pipes of different thicknesses. When in use, the roller 1 can be rotated around its axis by an angle. The operation is simple and there is no need to replace the roller 1, which reduces labor and production costs.

[0035] Example 2

[0036] like Figure 7 As shown, this embodiment is based on embodiment 1 and includes a bracket 2 that can support it and adjust its rotation angle.

[0037] In this embodiment, one end of the bracket 2 is fixed to the end face of the roller 1, and the other end of the bracket 2 is hinged to the frame, base or pedestal.

[0038] It also includes a linear drive mechanism 3, which is specifically a cylinder. One end of the linear drive mechanism 3 is hinged to the frame, base, or pedestal, and the other end is hinged to the bracket 2. The output direction of the linear drive mechanism 3 is perpendicular to the axis of the roller 1.

[0039] The structure of this embodiment can adjust the height of the roller 1 and the placement angle of the arc-shaped groove 1a, so that the arc-shaped groove 1a can contact the pipe with the maximum area, thereby improving the stability of the lifting.

[0040] Preferably, in this embodiment, the roller 1 is rotatably connected to the bracket 2, and the roller 1 can rotate around its axis. With this structure, the roller 1 can be rotated to select one of the arc-shaped grooves 1a as a supporting surface.

[0041] Furthermore, a plurality of positioning holes 1b are provided on the side wall of the roller 1, and the positioning holes 1b are arranged in a circular array around the axis of the roller 1. The bracket 2 is provided with a through hole 2a corresponding to the positioning hole 1b, and also includes a positioning pin 4 that can pass through the through hole 2a at one end and be inserted into the positioning hole 1b to limit the rotation of the roller 1. The rotation of the roller 1 is limited by the positioning pin 4.

[0042] Furthermore, one end of the locating pin 4 is provided with an external thread, and the through hole 2a is provided with an internal thread corresponding to the external thread, so as to fix the locating pin 4 in the through hole 2a and prevent the locating pin 4 from falling off.

[0043] Furthermore, the other end of the positioning pin 4 is provided with a handle 5 perpendicular to the positioning pin 4, which facilitates the rotation of the positioning pin 4 and its threaded connection with the through hole 2a.

[0044] It should be understood that the descriptions of directions or positional relationships such as up, down, left, right, front, back, top, bottom, tail, horizontal, and vertical in this application are all based on the accompanying drawings in the specification and are only used to more clearly express the technical solution and simplify the description, rather than indicating or implying that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A variable diameter guide roller for conveying pipes, characterized in that, include: The roller has several arc-shaped grooves on its arc-shaped surface. The arc-shaped grooves are connected one after another around the arc-shaped surface. The cross-sectional diameters of the arc-shaped grooves are arranged from large to small. The distance from the center of the cross-section of the arc-shaped groove to the axis of the roller is equal. The axis of adjacent arc-shaped grooves forms an obtuse angle.

2. A variable diameter guide roller for pipe conveying according to claim 1, characterized in that, The centerlines of adjacent arc-shaped grooves are at 165°.

3. A variable diameter guide roller for pipe conveying according to claim 1, characterized in that, The cross-section of the arc-shaped groove is semi-circular.

4. A variable diameter guide roller for pipe conveying according to claim 1, characterized in that, It also includes a bracket with one end fixed to the end face of the roller.

5. A variable diameter guide roller for pipe conveying according to claim 4, characterized in that, The other end of the bracket is hinged; it also includes a linear drive mechanism with one end hinged and the other end hinged to the bracket, the output direction of the linear drive mechanism being perpendicular to the axis of the roller.

6. A variable diameter guide roller for pipe conveying according to claim 5, characterized in that, The linear drive mechanism is a cylinder.

7. A variable diameter guide roller for pipe conveying according to claim 5, characterized in that, The rollers are rotatably connected to the bracket.

8. A variable diameter guide roller for pipe conveying according to claim 4, characterized in that, The side wall of the roller is provided with several positioning holes; the bracket is provided with through holes corresponding to the positioning holes; it also includes a positioning pin that can pass through the through hole at one end and be inserted into the positioning hole to limit the rotation of the roller.

9. A variable diameter guide roller for pipe conveying according to claim 8, characterized in that, One end of the locating pin is threaded into the through hole.

10. A variable diameter guide roller for pipe conveying according to claim 9, characterized in that, The other end of the positioning pin has a handle perpendicular to the positioning pin.

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