Automatic identifying and distributing device for steel pipes
By spraying ink markings on the steel pipe expanding machine and using an image recognition device for automatic identification, the problem that the straight seam submerged arc welded steel pipe end grinding machine could not identify was solved, realizing automatic diversion of reworked steel pipes and improving efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-03-13
AI Technical Summary
The end grinding machine for straight seam submerged arc welded steel pipes cannot determine whether the steel pipe needs grinding, resulting in repeated grinding of reworked steel pipes and reducing production efficiency.
An ink spraying device is installed on the steel pipe expanding machine to spray ink markings. The ink markings on the surface of the steel pipe are automatically identified by an image recognition device, and the steel pipe moving trolley is controlled to skip the station that does not need to be ground, thus avoiding repeated grinding.
Effectively identify and divert reworked steel pipes to avoid repeated grinding and improve the efficiency of steel pipe circulation.
Smart Images
Figure CN223989879U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of straight seam submerged arc welded steel pipe processing technology, and in particular to an automatic steel pipe identification and diversion device. Background Technology
[0002] With the continuous increase in demand for oil and natural gas, the transmission pressure and pipe diameter of pipelines are also constantly increasing. In order to improve transmission efficiency and ensure the stability and safety of pipelines, it is necessary to increase the pipe diameter and improve the strength of pipe materials to achieve the goal of improving transmission efficiency and safety. Therefore, ultra-high pressure, ultra-large diameter, and high-strength pipelines have become the inevitable choice for the future development of long-distance natural gas pipelines.
[0003] In related technologies, at the pipe end grinding station of straight seam submerged arc welded steel pipes, according to the flow direction of the steel pipe, both normal quality steel pipes and reworked steel pipes that need to be reworked in the previous process at the pipe end grinding station must first pass through the pipe end grinding station. However, the pipe end grinding machine cannot determine whether the steel pipe needs grinding operation on its own, thus causing the reworked steel pipe to be ground twice, resulting in repeated grinding of the reworked steel pipe and reducing production efficiency. Summary of the Invention
[0004] This application provides an automatic steel pipe identification and diversion device to solve the problem in related technologies where pipe end grinding machines perform secondary grinding on reworked steel pipes, resulting in repeated grinding of reworked steel pipes and reduced production efficiency.
[0005] This application provides an automatic steel pipe identification and diversion device, including:
[0006] A steel pipe expanding machine, wherein the steel pipe expanding machine is equipped with an ink spraying device and a control button for controlling the ink spraying device to spray ink markings onto the surface of the steel pipe;
[0007] A pipe end grinding machine, wherein an image recognition device for identifying ink markings is provided on the steel pipe moving path between the pipe end grinding machine and the steel pipe expanding machine;
[0008] A steel pipe moving trolley is located between a pipe end grinding machine and a steel pipe expanding machine. Both the pipe end grinding machine and the steel pipe moving trolley are electrically connected to an image recognition device.
[0009] In some embodiments, the image recognition device includes a CCD camera, an image recognition module, an image comparison module, an industrial control computer, and a memory;
[0010] The image recognition module is electrically connected to the CCD camera, and the image comparison module is electrically connected to the image recognition module, the industrial control computer, and the memory.
[0011] In some embodiments: both the pipe end grinding machine and the steel pipe moving trolley are electrically connected to the industrial control computer. When the image recognition module fails to identify ink markings on the surface of the steel pipe, the industrial control computer controls the pipe end grinding machine to start and controls the steel pipe moving trolley to transfer the steel pipe to the pipe end grinding machine.
[0012] In some embodiments: the ink printing device is provided in two sets, and the two sets of ink printing devices are used to spray ink markings on both ends of the steel pipe respectively; the CCD camera is provided in two sets, and the two sets of CCD cameras are used to acquire image information of both ends of the steel pipe.
[0013] In some embodiments, the image recognition device further includes a supplementary light located on one side of the CCD camera for illuminating the ink marking area on the surface of the steel pipe.
[0014] In some embodiments, the image recognition device further includes a camera bracket connected to the CCD camera, and a first linear module that drives the camera bracket to move along the X-axis, a second linear module that moves along the Y-axis, and a third linear module that moves along the Z-axis.
[0015] In some embodiments, the inkjet printing device includes an ink cartridge and a printhead connected to the ink cartridge, the printhead being connected to a robotic arm that drives it to rotate around the circumference of the steel pipe.
[0016] In some embodiments, the inkjet printing apparatus further includes a hot air blower and a hot air nozzle connected to the hot air blower via a hot air duct. The hot air nozzle is located on one side of the print head and rotates around the circumference of the steel duct along with the print head.
[0017] In some embodiments, the robotic arm is an industrial robot.
[0018] In some embodiments, the inkjet printing apparatus further includes a UV curing lamp located on one side of the printhead and rotating around the circumference of the steel tube along with the printhead.
[0019] The beneficial effects of the technical solution provided in this application include:
[0020] This application provides an automatic steel pipe identification and diversion device. The device includes a steel pipe expanding machine equipped with an ink spraying device and a control button to control the ink spraying device to spray ink markings onto the surface of the steel pipe; a pipe end grinding machine, with an image recognition device for identifying the ink markings located on the steel pipe movement path between the pipe end grinding machine and the steel pipe expanding machine; and a steel pipe moving trolley located between the pipe end grinding machine and the steel pipe expanding machine. Both the pipe end grinding machine and the steel pipe moving trolley are electrically connected to the image recognition device.
[0021] Therefore, the automatic steel pipe identification and diversion device of this application is equipped with an ink spraying device on the steel pipe expanding machine, as well as a control button to control the ink spraying device to spray ink markings onto the surface of the steel pipe. Operators at the steel pipe expanding machine station visually inspect whether a steel pipe is a rework pipe. If it is a rework pipe, they press the control button to activate the ink spraying device to spray ink markings onto the surface of the steel pipe. During the process of the steel pipe moving trolley moving the rework pipe from the steel pipe expanding machine to the pipe end grinding machine, it is automatically identified by the image recognition device. The image recognition device then controls the steel pipe moving trolley to skip the grinding station of the pipe end grinding machine, effectively identifying and diverting the rework pipe, avoiding secondary repeated grinding of the rework pipe, and improving the steel pipe flow efficiency. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the floor plan layout of an embodiment of this application;
[0024] Figure 2 This is a structural block diagram of the inkjet printing apparatus according to an embodiment of this application;
[0025] Figure 3 This is a structural block diagram of an image recognition device according to an embodiment of this application.
[0026] Figure label:
[0027] 1. Steel pipe expanding machine; 2. Inkjet printing device; 3. Control buttons; 4. Image recognition device; 5. Pipe end grinding machine; 6. Steel pipe moving trolley;
[0028] 21. Ink cartridge; 22. Printhead; 23. Hot air blower; 24. Hot air nozzle; 25. UV curing lamp;
[0029] 41. CCD camera; 42. Image recognition module; 43. Image comparison module; 44. Industrial control computer; 45. Memory; 46. Fill light. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0031] This application provides an automatic steel pipe identification and diversion device, which can solve the problem of rework steel pipes being repeatedly ground by pipe end grinding machines, thus reducing production efficiency.
[0032] See Figure 1 As shown in the figure, this application provides an automatic steel pipe identification and diversion device, including:
[0033] A steel pipe expanding machine 1 is equipped with an ink spraying device 2 and a control button 3 that controls the ink spraying device 2 to spray ink markings onto the surface of the steel pipe (not shown in the figure). When operating the steel pipe expanding machine 1, the operator visually inspects whether the steel pipe is a reworked steel pipe (the reworked steel pipe has already had its end face ground). If it is a reworked steel pipe, the operator presses the control button 3, which controls the ink spraying device 2 to spray ink markings onto the surface of the reworked steel pipe to distinguish it.
[0034] The pipe end grinding machine 5 is used to grind and finish the ends or walls of steel pipes. An image recognition device 4 for identifying ink markings is installed on the steel pipe movement path between the pipe end grinding machine 5 and the steel pipe expanding machine 1. When the steel pipe processed by the steel pipe expanding machine 1 moves into the station of the pipe end grinding machine 5, the image recognition device 4 automatically identifies whether its surface is coated with ink markings.
[0035] A steel pipe moving trolley 6 is located between the pipe end grinding machine 5 and the steel pipe expanding machine 1. The steel pipe moving trolley 6 moves the steel pipe processed by the steel pipe expanding machine 1 into the working position of the pipe end grinding machine 5. Both the pipe end grinding machine 5 and the steel pipe moving trolley 6 are electrically connected to the image recognition device 4.
[0036] The automatic steel pipe identification and diversion device of this application embodiment is equipped with an ink spraying device 2 and a control button 3 for controlling the ink spraying device 2 to spray ink markings onto the surface of the steel pipe. The operator at the steel pipe expanding machine 1 visually inspects whether the steel pipe is a reworkable steel pipe. If it is a reworkable steel pipe, the operator presses the control button 3 to cause the ink spraying device 2 to spray ink markings onto the surface of the steel pipe.
[0037] As the steel pipe moving trolley 6 moves the reworked steel pipe from the steel pipe expanding machine 1 to the pipe end grinding machine 5, it is automatically identified by the image recognition device 4. Then, the image recognition device 4 controls the steel pipe moving trolley 6 to skip the grinding station of the pipe end grinding machine 5, effectively identifying and diverting the reworked steel pipe, avoiding secondary repeated grinding of the reworked steel pipe, and improving the steel pipe circulation efficiency.
[0038] In some alternative embodiments: see Figure 3 As shown in the figure, this application embodiment provides an automatic steel pipe identification and diversion device. The image recognition device 4 of the automatic steel pipe identification and diversion device includes a CCD camera 41, an image recognition module 42, an image comparison module 43, an industrial control computer 44, and a memory 45. The image recognition module 42 is electrically connected to the CCD camera 41, and the image comparison module 43 is electrically connected to the image recognition module 42, the industrial control computer 44, and the memory 45.
[0039] Both the pipe end grinding machine 5 and the steel pipe moving trolley 6 are electrically connected to the industrial control computer 44. When the image recognition module 42 fails to recognize any ink markings on the surface of the steel pipe, the industrial control computer 44 controls the pipe end grinding machine 5 to start preparing to perform grinding operations on the steel pipe, and controls the steel pipe moving trolley 6 to transfer the steel pipe to the pipe end grinding machine 5.
[0040] CCD camera 41 is used to acquire image information of the steel pipe surface. Image recognition module 42 extracts ink mark features from the input steel pipe surface image information to generate ink mark image feature information. Specifically, this includes: setting a region of interest in a specific area of the steel pipe surface image, the size of which is determined by the pixel ratio of the ink mark in the panoramic image; fixing the relative shooting position between the ink mark and the CCD camera, thereby enabling the ink mark to be fixed within the region of interest in the electronic image.
[0041] The image comparison module 43 matches the ink label feature information with the ink label matching information in the memory 45, and filters out the ink label matching information that meets the matching conditions. Specifically, the image comparison module 43 accesses the memory 45, where the ink label matching information is stored in advance. The image comparison module 43 compares the ink label image feature information with the ink label matching information until a matching ink label is found.
[0042] The image comparison module 43 determines the steel pipe surface image that matches the ink mark matching information as a rework steel pipe and feeds the determination information back to the industrial control computer 44. The industrial control computer 44 controls the pipe end grinding machine 5 not to grind the rework steel pipe. The steel pipe moving trolley 6 diverts the rework steel pipe to the next station at the pipe end grinding machine 5 station to avoid repeated grinding of the rework steel pipe.
[0043] In some alternative embodiments: see Figure 3As shown in the figure, this application embodiment provides an automatic steel pipe identification and diversion device. The automatic steel pipe identification and diversion device has two sets of ink spraying devices 2, which are used to spray ink markings on both ends of the steel pipe respectively. There are two sets of CCD cameras 41, which are used to acquire image information of both ends of the steel pipe.
[0044] The image recognition device 4 also includes a supplementary light 46 located on one side of the CCD camera 41 for illuminating the ink marking area on the surface of the steel pipe. The image recognition device 4 also includes a camera bracket connected to the CCD camera 41, and a first linear module that drives the camera bracket to move along the X-axis, a second linear module that moves along the Y-axis, and a third linear module that moves along the Z-axis.
[0045] This embodiment of the application includes two sets of inkjet printing devices 2 and two sets of CCD cameras 41, which allow ink markings to be sprayed onto both ends of the steel pipe. The two sets of CCD cameras 41 simultaneously detect both ends of the steel pipe, avoiding missed or incorrect detections. The supplementary light 46 is used to provide supplementary lighting for the CCD camera 41 to acquire image information of the steel pipe surface, thereby improving the clarity of the image acquired by the CCD camera 41.
[0046] The camera bracket is used to fix and support the CCD camera 41 in a set position. The first linear module, the second linear module and the third linear module are used to drive the CCD camera 41 and the camera bracket to move linearly in different directions, thereby enabling the CCD camera 41 to acquire a larger image acquisition range.
[0047] In some alternative embodiments: see Figure 2 As shown in the illustration, this application provides an automatic steel pipe identification and diversion device. The inkjet printing device 2 of this device includes an ink cartridge 21 and a print head 22 connected to the ink cartridge. The print head 22 is connected to a robotic arm that drives it to rotate around the circumference of the steel pipe. The robotic arm is preferably, but not limited to, an industrial robot. The robotic arm drives the print head 22 to rotate around the outer circumference of the steel pipe, thereby spraying ink markings onto the outer surface of the steel pipe.
[0048] The inkjet printing apparatus also includes a hot air blower 23 and a hot air nozzle 24 connected to the hot air blower via a hot air duct. The hot air nozzle 24 is located on one side of the print head 22 and rotates around the circumference of the steel pipe along with the print head 22. The hot air nozzle 24 is used to blow hot air onto the surface of the steel pipe, thereby causing the ink markings sprayed on the surface of the steel pipe to dry quickly.
[0049] To accelerate the drying of ink markings, the ink printing device 2 also includes a UV curing lamp 25, which is located on one side of the print head 22 and rotates around the circumference of the steel tube along with the print head 22.
[0050] Working principle
[0051] The operator at station 1 of the steel pipe expanding machine checks the condition of each steel pipe and visually inspects whether the steel pipe is a reworkable steel pipe. If it is a reworkable steel pipe, the operator presses control button 3. Control button 3 controls inkjet printing device 2 to print circumferential linear markings on the outer surface of the steel pipe.
[0052] The steel pipe moves downstream normally under the drive of the steel pipe moving trolley 6. When the steel pipe reaches the position of the CCD camera 41, the CCD camera 41 senses the steel pipe and takes an image of the outer surface of the steel pipe. Then, the image recognition module 42 extracts the ink mark features from the incoming steel pipe surface image information and generates ink mark image feature information.
[0053] The image comparison module 43 matches the ink mark matching information in the memory 45 according to the ink mark feature information, filters out the ink mark matching information that meets the matching conditions, and then determines whether there is ink mark on the outer surface of the steel pipe.
[0054] The image comparison module 43 transmits the judgment result signal to the industrial control computer 44. The industrial control computer 44 controls the steel pipe moving trolley 6 to perform corresponding actions according to the signal. If there is an ink mark, the steel pipe moving trolley 6 directly transports the steel pipe to the next steel pipe placement point of the pipe end grinding machine. If there is no ink mark, the steel pipe moving trolley 6 transports the steel pipe to the pipe end grinding machine station for pipe end grinding operation.
[0055] Simultaneously, the industrial control computer 44 receives control signals from the image comparison module 43 and controls whether the pipe end grinding machine 5 performs grinding operations. If a steel pipe with an ink mark passes through the pipe end grinding station, the pipe end grinding machine does not operate; if there is no ink mark, the pipe end grinding machine 5 performs grinding operations as the steel pipe passes through the pipe end grinding station. Each steel pipe undergoes the above process, ensuring that reworked steel pipes do not undergo repeated grinding operations, thus improving production efficiency.
[0056] In the description of this application, it should be noted that the terms "upper," "lower," 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 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0057] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0058] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A steel pipe automatic identification and distribution device, characterized in that, The steel pipe expanding machine (1) is provided with an ink jet printing device (2) and a control button (3) for controlling the ink jet printing device (2) to spray ink marks on the surface of the steel pipe. An image recognition device (4) for recognizing the ink marks is arranged on the steel pipe moving path between the pipe end grinding machine (5) and the steel pipe expanding machine (1). A steel pipe moving trolley (6) is arranged between the pipe end grinding machine (5) and the steel pipe expanding machine (1), and the pipe end grinding machine (5) and the steel pipe moving trolley (6) are electrically connected with the image recognition device (4).
2. The steel pipe automatic identification and distribution device according to claim 1, wherein the image recognition device (4) comprises a CCD camera (41), an image recognition module (42), an image comparison module (43), an industrial computer (44), and a memory (45); the image recognition module (42) is electrically connected with the CCD camera (41), and the image comparison module (43) is electrically connected with the image recognition module (42), the industrial computer (44), and the memory (45).
3. The steel pipe automatic identification and distribution device according to claim 2, wherein the pipe end grinding machine (5) and the steel pipe moving trolley (6) are electrically connected with the industrial computer (44), and when the image recognition module (42) does not recognize the ink marks on the surface of the steel pipe, the industrial computer (44) controls the pipe end grinding machine (5) to start and controls the steel pipe moving trolley (6) to move the steel pipe to the pipe end grinding machine (5).
4. The steel pipe automatic identification and distribution device according to claim 2, wherein the ink jet printing device (2) is provided with two groups, and the two groups of ink jet printing devices (2) are used to spray ink marks on the two ends of the steel pipe respectively; the CCD camera (41) is provided with two groups, and the two groups of CCD cameras (41) are used to acquire image information of the two ends of the steel pipe.
5. The steel pipe automatic identification and distribution device according to claim 2, wherein the image recognition device (4) further comprises a supplementary light (46) arranged on one side of the CCD camera (41) and used to irradiate the ink mark area on the surface of the steel pipe.
6. The steel pipe automatic identification and distribution device according to claim 2, wherein the image recognition device (4) further comprises a camera support connected with the CCD camera (41), a first linear module for driving the camera support to move along the X-axis, a second linear module for driving the camera support to move along the Y-axis, and a third linear module for driving the camera support to move along the Z-axis.
7. The steel pipe automatic identification and distribution device according to claim 1, wherein the ink jet printing device (2) comprises an ink cartridge (21) and a print head (22) connected with the ink cartridge (21), and the print head (22) is connected with a mechanical hand for driving the print head (22) to rotate around the circumference of the steel pipe.
8. The steel pipe automatic identification and distribution device according to claim 7, wherein The ink jet printing device (2) further comprises a hot air blower (23), and a hot air nozzle (24) connected with the hot air blower (23) through a hot air pipe, the hot air nozzle (24) is located at one side of the printing head (22) and rotates around the circumference of the steel pipe with the printing head (22).
9. The automatic identification and distribution device for steel pipes according to claim 7, characterized in that: The mechanical arm is an industrial robot.
10. The automatic identification and distribution device for steel pipes according to claim 7, characterized in that: The ink jet printing device (2) further comprises a UV curing lamp (25), the UV curing lamp (25) is located at one side of the printing head (22) and rotates around the circumference of the steel pipe with the printing head (22).