A steel pipe online secondary cutting device

Abstract

This utility model belongs to the technical field of steel pipe production equipment, and relates to an online secondary cutting device for steel pipes. It includes a non-standard steel pipe turner, a non-standard steel pipe storage rack, a secondary feeding turner, a secondary conveying roller conveyor, a secondary unloading turner, a plasma cutter, and a lifting and rotating roller conveyor. The lifting and rotating roller conveyor is composed of multiple lifting and rotating idlers, which are coaxially arranged with the secondary conveying roller conveyor at unequal intervals. Each roller conveyor consists of a base, a lifting cylinder, a guide assembly, a roller shaft, a roller shaft seat, and a drive motor. The lifting cylinder is centrally located, and the guide assemblies are located on both sides and fixedly mounted on the base. The roller shaft seat is fixedly mounted on the top of the lifting cylinder, and the roller shaft is mounted on the roller shaft seat. The drive motor is located on one side of the roller shaft seat and is connected to the roller shaft for transmission. This utility model has a scientific and reasonable structural design, enabling online secondary cutting of non-standard steel pipes. It offers advantages such as fast cutting speed, high efficiency, time and labor saving, and stable steel pipe lifting action, demonstrating its innovation.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel pipe production equipment, specifically relating to an online secondary cutting device for steel pipes. Background Technology

[0002] Steel pipes are widely used in social production and daily life. However, in some applications, there are strict requirements for the outer diameter tolerance of steel pipes. Therefore, in steel pipe production lines, after strip steel is formed, welded, and cut into steel pipes, the steel pipes must undergo quality inspection and grading. Standard steel pipes that meet high-grade standards are directly conveyed to the next process, while non-standard steel pipes with defects that do not meet high-grade standards need to be cut a second time for use in applications where the outer diameter requirement is not high. Secondary cutting refers to cutting non-standard steel pipes into smaller specifications of different lengths according to user needs and the length of the non-standard steel pipes. Due to limitations in previous production line equipment, the secondary cutting of non-standard steel pipes was often done manually, removing the non-standard steel pipes from the line and then performing the secondary cutting offline. This method is naturally time-consuming, labor-intensive, and inefficient. To address these problems, our company has independently developed and designed an online secondary cutting device for steel pipes, overcoming the shortcomings of previous production line equipment and solving the technical difficulties of online secondary cutting of non-standard steel pipes. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an online secondary cutting device for non-standard steel pipes that can be cut online with high speed and efficiency.

[0004] The technical problem solved by this utility model is achieved through the following technical solution:

[0005] A steel pipe online secondary cutting device includes a non-standard steel pipe flipper, a non-standard steel pipe storage rack, a secondary feeding flipper, a secondary conveying roller conveyor, a secondary unloading flipper, and a plasma cutting machine. The device is characterized by further including a lifting and rotating roller conveyor, which is composed of multiple lifting and rotating idlers. These rollers are coaxially arranged with the secondary conveying roller conveyor at unequal intervals. Each roller conveyor consists of a base, a lifting cylinder, a guide assembly, a roller shaft, a roller shaft seat, and a drive motor. The lifting cylinder is centrally located, and the guide assemblies are located on both sides and fixedly mounted on the base. The roller shaft seat is fixedly mounted on the top of the lifting cylinder, and the roller shaft is mounted on the roller shaft seat. The drive motor is located on one side of the roller shaft seat and is connected to the roller shaft for transmission.

[0006] Moreover, there are two rollers, which are arranged opposite each other on the roller seat. One of the rollers is equipped with a drive sprocket, and both rollers are rubber rollers.

[0007] Moreover, the drive motor is a geared motor with a drive sprocket mounted on it.

[0008] Moreover, there are two guide components, which are vertically and symmetrically arranged on both sides of the lifting cylinder. Each component consists of a guide sleeve and a guide column. The guide sleeve is vertically fixed on the base, and the guide column is concentrically fixed on the bottom surface of the roller seat.

[0009] The advantages and beneficial effects of this utility model are as follows:

[0010] This utility model relates to an online secondary cutting device for steel pipes, which can perform secondary cutting of non-standard steel pipes online with fast cutting speed and high efficiency.

[0011] 2. The online secondary cutting device for steel pipes of this utility model can lift and rotate the steel pipe, making it easier to cut the steel pipe.

[0012] 3. This utility model is equipped with a guide component, which makes the lifting action of the steel pipe run smoothly.

[0013] 4. This utility model has a scientific and reasonable structural design, and can perform secondary cutting of non-standard steel pipes online. It has the advantages of fast cutting speed, high efficiency, time and labor saving, and stable operation of lifting steel pipes. It is a highly innovative online secondary cutting device for steel pipes. Attached Figure Description

[0014] Figure 1 This is a plan view of the present invention;

[0015] Figure 2 This is a schematic diagram of the lifting and rotating idler structure;

[0016] Figure 3 for Figure 2 Top view;

[0017] Figure 4 for Figure 2 The left view.

[0018] Attached image annotations:

[0019] 1-Lifting and rotating roller conveyor, 2-Plasma cutting machine, 3-Secondary unloading and pipe turning device, 4-Secondary conveying roller conveyor, 5-Primary cutting machine, 6-Small specification steel pipe storage rack, 7-Primary conveying roller conveyor, 8-Non-standard steel pipe storage rack, 9-Standard steel pipe turning device, 10-Secondary loading and turning device, 11-Non-standard steel pipe turning device, 12-Standard steel pipe storage rack, 13-Drive motor, 14-Guide assembly, 15-Roller shaft, 16-Lifting cylinder, 17-Roller shaft seat, 18-Guide column, 19-Guide sleeve, 20-Base, 21-Drive sprocket, 22-Transmission sprocket. Detailed Implementation

[0020] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting, and should not be used to limit the protection scope of the present invention.

[0021] An online secondary cutting device for steel pipes includes a non-standard steel pipe flipper 11, a non-standard steel pipe storage rack 8, a secondary loading flipper 10, a secondary conveying roller conveyor 4, a secondary unloading flipper 3, a small-specification steel pipe storage rack 6, and a plasma cutter 2. Its innovation lies in the inclusion of a lifting and rotating roller conveyor 1. The non-standard steel pipe storage rack and the standard steel pipe storage rack 12 are positioned opposite each other on one side of the primary conveying roller conveyor 7. The non-standard steel pipe flipper and the secondary loading flipper are respectively positioned between the non-standard steel pipe storage rack and the primary and secondary conveying roller conveyors. The secondary conveying roller conveyor is parallel to the primary conveying roller conveyor at the end of the non-standard steel pipe storage rack. The lifting and rotating roller conveyor is coaxially overlapped with the secondary conveying roller conveyor. The small-specification steel pipe storage rack is positioned on one side of the secondary conveying roller conveyor. The secondary unloading flipper is positioned between the secondary conveying roller conveyor and the small-specification steel pipe storage rack. The plasma cutter is positioned above the secondary conveying roller conveyor and the lifting and rotating roller conveyor.

[0022] The non-standard steel pipe flipper flips non-standard steel pipes onto a non-standard steel pipe storage rack. The storage rack holds the non-standard steel pipes for secondary cutting. The secondary loading flipper flips non-standard steel pipes from the storage rack onto a secondary conveyor roller conveyor, which transports them to the secondary cutting machine for cutting. The secondary unloading flipper flips smaller-sized steel pipes after secondary cutting onto a smaller-sized steel pipe storage rack, which holds and stores these smaller pipes. The plasma cutting machine cuts the non-standard steel pipes. The lifting and rotating roller conveyor lifts and rotates the non-standard steel pipes for cutting.

[0023] The lifting and rotating roller conveyor is composed of multiple lifting and rotating idlers. These multiple lifting and rotating idlers are coaxially arranged with the secondary conveyor roller conveyor at unequal intervals. Each roller conveyor consists of a base 20, a lifting cylinder 16, a guide assembly 14, a roller shaft 15, a roller shaft seat 17, and a drive motor 13. The lifting cylinder is located in the center, and the guide assembly is located on both sides and is fixedly mounted on the base. The roller shaft seat is fixedly mounted on the top of the lifting cylinder, and the roller shaft is set on the roller shaft seat. The drive motor is set on one side of the roller shaft seat and is connected to the roller shaft for transmission.

[0024] The base serves to support and assemble the lifting and rotating rollers and other components. The lifting cylinder lifts the non-standard steel pipes for easy cutting. After cutting, it is lowered and the cut small-sized steel pipes are placed on the secondary conveyor rollers. The guide assembly ensures that the lifting and assembling actions are stable and vertical. The roller shaft is driven by the transmission chain to rotate and rotate the non-standard steel pipes for easy cutting. The roller shaft seat supports and assembles the roller shaft. The drive motor drives the roller shaft to rotate via the drive sprocket and transmission sprocket, thereby rotating the non-standard steel pipes.

[0025] There are two rollers, which are arranged opposite each other on the roller seat. One of the rollers is equipped with a drive sprocket 22. Both rollers are rubber rollers.

[0026] The drive motor is a geared motor, and a drive sprocket 21 is mounted on it.

[0027] There are two guide components, which are vertically and symmetrically arranged on both sides of the lifting cylinder. Each component consists of a guide sleeve 19 and a guide column 18. The guide sleeve is vertically fixed on the base, and the guide column is concentrically fixed on the bottom surface of the roller seat.

[0028] The working principle of this utility model:

[0029] On the steel pipe production line, after the strip steel is formed and welded into steel pipes, the steel pipes undergo quality inspection, and those that do not meet the high-grade standards are marked. When the steel pipes pass through the primary cutting machine 5, standard steel pipes that meet the standards are cut and then conveyed along the primary conveyor rollers. The standard steel pipe flipper 9 flips the standard steel pipes onto the standard steel pipe storage rack. Non-standard steel pipes that do not meet the standards are cut by the primary cutting machine and then conveyed along the primary conveyor rollers. The non-standard steel pipes on the non-standard steel pipe storage rack are then flipped onto the secondary conveyor rollers by the secondary feeding flipper, and then conveyed to the secondary cutting machine, i.e., the plasma cutting machine, for secondary cutting. When the non-standard steel pipe is conveyed to the predetermined position on the secondary conveyor rollers, the lifting and rotating idler rollers of the lifting and rotating roller conveyor lift the non-standard steel pipe upwards and remove it from the secondary conveyor rollers. A drive motor then drives the drive sprocket, transmission sprocket, and roller shaft to rotate, thereby rotating the steel pipe. The plasma cutting machine then cuts the non-standard steel pipe into smaller specifications. After cutting, the lifting and rotating idler rollers lower down, and the cut smaller specifications of the steel pipe are placed back onto the secondary conveyor rollers. A non-standard steel pipe flipper then flips the smaller specifications of the steel pipe onto a smaller specifications storage rack. This method achieves online secondary cutting of non-standard steel pipes, saving time and labor, and offering faster cutting speeds and higher efficiency compared to traditional manual offline cutting.

[0030] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A steel pipe online secondary cutting device, comprising a non-standard steel pipe flipper (11), a non-standard steel pipe storage rack (8), a secondary loading flipper (10), a secondary conveying roller conveyor, a secondary unloading flipper (3), and a plasma cutting machine (2), characterized in that: It also includes a lifting and rotating roller conveyor (1), which is composed of multiple lifting and rotating idlers. The multiple lifting and rotating idlers are coaxially arranged with the secondary conveying roller conveyor (4) at unequal intervals. Each roller conveyor is composed of a base (20), a lifting cylinder (16), a guide assembly (14), a roller shaft (15), a roller shaft seat (17), and a drive motor (13). The lifting cylinder (16) is in the center, and the guide assembly (14) is located on both sides and is fixed on the base (20). The roller shaft seat (17) is fixed on the top of the lifting cylinder (16), the roller shaft (15) is located on the roller shaft seat (17), and the drive motor (13) is located on one side of the roller shaft seat (17) and is connected to the roller shaft for transmission.

2. The on-line secondary cutting device for steel pipes according to claim 1, characterized in that: There are two rollers (15), which are arranged opposite each other on the roller seat (17). One of the rollers (15) is equipped with a transmission sprocket (22), and both rollers are rubber rollers.

3. The apparatus for on-line secondary cutting of a steel pipe according to claim 1, wherein: The drive motor (13) is a geared motor, and a drive sprocket (21) is provided on it.

4. The apparatus for on-line secondary cutting of a steel pipe according to claim 1, wherein: The guide assembly (14) consists of two parts. The two guide assemblies (14) are vertically and symmetrically arranged on both sides of the lifting cylinder. Each part is composed of a guide sleeve (19) and a guide column (18). The guide sleeve (19) is vertically fixed on the base (20), and the guide column (18) is concentrically fixed on the bottom surface of the roller seat (17) corresponding to the guide seat.

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