Finishing flaw detection ink trace positioning mark device

Abstract

The utility model relates to the technical field of nondestructive testing auxiliary equipment, especially to a kind of finishing flaw detection ink mark positioning mark device, including box, spray gun subassembly, cleaning structure, ink supply subassembly, anti-condensation subassembly and controller;Box side is respectively provided with import and export;Spray gun subassembly is set in box inside, including gun body and nozzle, nozzle is set in gun body front end;Cleaning structure includes air blowing subassembly and brush subassembly, the air outlet of air blowing subassembly is towards nozzle, brush subassembly is movably connected with nozzle;Ink supply subassembly includes ink tank and delivery pipeline, ink tank is communicated with nozzle by delivery pipeline, liquid level sensor is set in ink tank, delivery pipeline is provided with delivery pump and solenoid valve;Anti-condensation subassembly includes stirring subassembly and heating assembly, stirring subassembly is installed in ink tank, heating assembly is set in delivery pipeline outside;Controller is connected with each component;It can prevent ink mark condensation blockage, guarantee defect mark accurate succession, improve flaw detection quality control efficiency after promotion.

Description

Technical Field

[0001] This utility model relates to the technical field of non-destructive testing auxiliary equipment, and in particular to a fine-finishing flaw detection ink mark positioning device. Background Technology

[0002] In the industrial production of metal workpieces such as steel pipes, steel plates, and welds, non-destructive testing (NDT) is a crucial quality control step. Using technologies such as ultrasound and X-rays, defects such as cracks and porosity inside or on the surface of the workpiece can be detected, ensuring that non-compliance with quality requirements is identified promptly. However, after NDT, the specific location of the defect on the workpiece needs to be determined before subsequent repair, grinding, and other processing can be carried out. Therefore, marking devices that work in conjunction with the NDT process have emerged. These devices receive defect signals transmitted from the NDT system in real time, combine this with dynamic information such as the workpiece's speed and direction of movement on the production line, calculate the precise marking timing, and then apply identifiable ink marks to the defect area.

[0003] Existing marking equipment mostly uses a fixed spray gun structure. In non-continuous production or when the marking interval is long, ink is prone to condensation in the nozzle and ink supply path, causing nozzle blockage. In subsequent marking periods, this can lead to marking interruptions or discontinuous ink flow, resulting in inaccurate defect location markings and making it difficult for workers to quickly locate the actual defects during subsequent inspections. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a finishing flaw detection ink positioning mark device that can prevent ink condensation and blockage and ensure accurate and continuous defect marking.

[0005] This utility model discloses a finishing flaw detection ink stain positioning and marking device, comprising a housing, a spray gun assembly, a cleaning structure, an ink supply assembly, an anti-condensation assembly, and a controller. The housing has an inlet and an outlet on each side. The spray gun assembly is located inside the housing and includes a gun body and a nozzle, with the nozzle positioned at the front end of the gun body. The cleaning structure includes an air blowing assembly and a brush assembly; the air outlet of the air blowing assembly faces the nozzle, and the brush assembly is movably connected to the nozzle. The ink supply assembly includes an ink cartridge and a delivery pipeline; the ink cartridge is connected to the nozzle via the delivery pipeline, and a liquid level sensor is installed inside the ink cartridge. A delivery pump and a solenoid valve are installed on the delivery pipeline. The anti-condensation assembly includes a stirring assembly and a heating assembly; the stirring assembly is installed inside the ink cartridge, and the heating assembly is located outside the delivery pipeline. The controller is connected to the air blowing assembly, the brush assembly, the liquid level sensor, the delivery pump, the solenoid valve, the stirring assembly, and the heating assembly.

[0006] As a preferred embodiment of this utility model, the air blowing assembly includes an air nozzle and an air supply pipeline. The air nozzle is fixed in the housing by a bracket, and its air outlet direction is directly opposite the end of the nozzle. The air supply pipeline is connected to a high-pressure air source.

[0007] As a preferred embodiment of this utility model, the brush assembly includes a driving component, a transmission mechanism, and a brush head. The driving component drives the brush head to reciprocate in a direction parallel to the nozzle axis through the transmission mechanism, so that the brush head can be fitted onto the outside of the nozzle or separated from the nozzle.

[0008] As a preferred embodiment of this utility model, the brush head is provided with flexible bristles inside, and when the brush head is fitted outside the nozzle, the flexible bristles are in close contact with the outer peripheral surface of the nozzle.

[0009] As a preferred embodiment of the present invention, the stirring assembly includes a drive motor and stirring blades. The drive motor is installed on the top of the ink cartridge, and its output shaft extends into the inside of the ink cartridge and is connected to the stirring blades.

[0010] As a preferred embodiment of this utility model, the stirring blade is a spiral blade or a paddle blade, and there is a gap between its edge and the inner wall of the ink cartridge.

[0011] As a preferred embodiment of this utility model, the heating component includes a heating element and a temperature detection element. The heating element is attached to or wrapped around the outside of the conveying pipeline, and the detection end of the temperature detection element is in contact with the outer wall or internal flow channel of the conveying pipeline.

[0012] As a preferred embodiment of this utility model, the heating element is any one or more combinations of electric heating wire, heating film or heating sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the anti-condensation component, the stirring component inside the ink cartridge continuously stirs the ink, preventing it from settling and condensing. The heating component outside the delivery pipeline stabilizes the ink temperature within the pipeline, preventing ink from solidifying and blocking the risk of condensation at the ink supply source. The cleaning structure uses high-pressure airflow from the air blowing component to remove residual ink from the nozzle tip, while the brush component drives the brush head to reciprocate along the nozzle axis, using flexible bristles to thoroughly clean the outer circumference of the nozzle. This dual cleaning method thoroughly prevents nozzle clogging. The ink supply component's liquid level sensor monitors the ink volume in real time to ensure stable ink supply. The controller links all components to achieve automated operation without manual intervention. Ultimately, this ensures uninterrupted marking, continuous and complete ink marking, and accurate marking of defect locations, facilitating rapid subsequent inspection and repair by workers. This improves the efficiency of quality control and the convenience of subsequent processing after non-destructive testing of metal workpieces. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ; Figure 3 yes Figure 2A schematic diagram of the cross-sectional structure of section AA in the middle; Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 5 yes Figure 4 A cross-sectional view of section C. The attached diagram is labeled as follows: 1. Housing; 11. Inlet; 12. Outlet; 2. Spray gun assembly; 21. Gun body; 22. Nozzle; 3. Cleaning structure; 31. Air blowing assembly; 311. Air nozzle; 312. Air supply line; 313. Support; 314. High-pressure air source; 32. Brush assembly; 321. Drive component; 322. Transmission mechanism; 323. Brush head; 3231. Flexible bristles; 4. Ink supply assembly; 41. Ink cartridge; 411. Liquid level sensor; 42. Delivery line; 421. Delivery pump; 422. Solenoid valve; 5. Anti-condensation assembly; 51. Stirring assembly; 511. Drive motor; 512. Stirring blade; 52. Heating assembly; 521. Heating element; 522. Temperature detection element; 6. Controller. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Reference Figures 1-5This embodiment provides a finishing flaw detection ink positioning and marking device, including a housing 1, a spray gun assembly 2, a cleaning structure 3, an ink supply assembly 4, an anti-condensation assembly 5, and a controller 6. The housing 1 has an inlet 11 and an outlet 12 on both sides, allowing the metal workpiece to be inspected and marked to enter the housing 1 through the inlet 11, be processed by the components inside the housing 1, and then exit through the outlet 12. The housing 1 not only provides a stable conveying channel for the workpiece but also isolates it from external environmental interference factors such as dust and impurities, preventing them from affecting the ink marking effect or damaging the internal components. The spray gun assembly 2 is located inside the housing 1 and includes a gun body 21 and a nozzle 22. The nozzle 22 is located at the front end of the gun body 21 and is used to spray ink onto the defective areas of the workpiece. The cleaning structure 3 includes an air blowing assembly 31 and a brush assembly. 32. The air outlet of the air blowing assembly 31 faces the nozzle 22, and can use high-pressure gas to blow away dried ink or impurities adhering to the outlet or inside of the nozzle 22; the brush assembly 32 is movably connected to the nozzle 22, and can further clean the outer surface of the nozzle 22 through physical contact; the cleaning structure 3 can clean the nozzle 22 during the interval or after the marking operation, solving the nozzle clogging problem caused by ink condensation, thereby ensuring the reliability of the ink gun assembly 2 in subsequent operations and the continuity of marking; the ink supply assembly 4 includes an ink cartridge 41 and a delivery pipeline 42, and the ink cartridge 41 is used to store the ink for marking. Water is connected to the nozzle 22 through the delivery pipe 42 to form a complete ink supply path; a liquid level sensor 411 is installed in the ink cartridge 41 to monitor the ink level in real time, so as to remind the operator to add ink in time when the ink is insufficient, and avoid the interruption of the marking due to lack of ink; a delivery pump 421 and a solenoid valve 422 are installed on the delivery pipe 42. The delivery pump 421 provides power for ink delivery and can adjust the ink delivery pressure and flow rate according to the marking requirements to ensure that the ink concentration and width of the ink sprayed from the nozzle 22 are consistent. The solenoid valve 422 is used to control the opening and closing of the delivery pipe 42, thereby controlling the start and stop of the marking action; The anti-condensation component 5 includes a stirring component 51 and a heating component 52. The stirring component 51 is installed inside the ink cartridge 41 and can continuously or intermittently stir the ink in the ink cartridge 41 to keep the ink in a flowing state, avoiding the sedimentation of ink components and uneven concentration caused by long-term standing, thereby preventing ink stains from condensing at the outlet of the ink cartridge 41 and the inlet of the delivery pipeline 42. The heating component 52 is located outside the delivery pipeline 42 and can heat and keep the ink in the delivery pipeline 42 at a suitable flow temperature, avoiding the increase of ink viscosity, decrease of fluidity, or even condensation and blockage of the pipeline due to excessively low ambient temperature.The controller 6 is electrically or signal-connected to the air-blowing assembly 31, brush assembly 32, liquid level sensor 411, delivery pump 421, solenoid valve 422, stirring assembly 51, and heating assembly 52. ​​It can receive defect signals transmitted from the non-destructive testing system and simultaneously collect dynamic data such as workpiece conveying speed and direction. Through a built-in control algorithm, it calculates the marking timing and then sends control commands to each assembly: before marking, it controls the stirring assembly 51 to start, ensuring ink uniformity; during marking, it controls the solenoid valve 422 to open and the delivery pump 421 to start, delivering ink to the nozzle 22, while simultaneously controlling the spray gun assembly 2 to spray ink; after marking, it controls the air-blowing assembly 31 and brush assembly 32 to start, cleaning the nozzle 22.

[0018] Specifically, the air blowing assembly 31 includes an air nozzle 311 and an air supply pipe 312. The air nozzle 311 is fixed inside the housing 1 by a bracket 313, and its air outlet direction is directly facing the end of the nozzle 22. One end of the air supply pipe 312 is connected to the air nozzle 311, and the other end is connected to a high-pressure air source 314. The bracket 313 can fix the air nozzle 311 in a preset position, ensuring that the air outlet of the air nozzle 311 is always directly facing the end of the nozzle 22 and the spray port, avoiding displacement of the air nozzle 311 due to vibration or collision, which would affect the airflow effect. The high-pressure air source 314 can provide a stable high-pressure airflow. The airflow is delivered to the air nozzle 311 through the air supply pipe 312 and sprayed onto the nozzle 22 in the form of a concentrated airflow, which can quickly remove residual ink stains from the end of the nozzle 22 and the internal channel without causing physical wear to the nozzle 22.

[0019] The brush assembly 32 includes a drive unit 321, a transmission mechanism 322, and a brush head 323. The drive unit 321 can be a stepper motor, servo motor, or cylinder, etc. The transmission mechanism 322 can be a gear and rack mechanism, screw and nut mechanism, belt drive mechanism, or linkage mechanism, depending on the type of the drive unit 321. The drive unit 321 drives the brush head 323 to reciprocate along a direction parallel to the axis of the nozzle 22 through the transmission mechanism 322, so that the brush head 323 can be sleeved on the outside of the nozzle 22 during cleaning and separated from the nozzle 22 after cleaning. By reciprocating along the axis of the nozzle 22, the outer peripheral surface and end of the nozzle 22 can be wiped thoroughly, avoiding cleaning dead corners.

[0020] To balance the cleaning effect of the brush head 323 with the protection of the nozzle 22, the brush head 323 is equipped with flexible bristles 3231. The flexible bristles 3231 can be made of flexible materials with good elasticity and wear resistance, such as nylon filaments, polyester fiber filaments, and microfiber filaments. When the brush head 323 is fitted over the nozzle 22, the flexible bristles 3231 are in close contact with the outer peripheral surface of the nozzle 22. When the flexible bristles 3231 are in close contact with the surface of the nozzle 22, they can penetrate into the tiny gaps on the outer peripheral surface of the nozzle 22 to remove the attached residual ink. At the same time, because of its soft material, it will not scratch or wear the surface of the nozzle 22, thus avoiding damage to the nozzle 22 due to the cleaning action.

[0021] The stirring assembly 51 includes a drive motor 511 and a stirring blade 512. The drive motor 511 can be an industrial-grade motor with waterproof and dustproof functions. It is installed on the top of the ink cartridge 41, and its output shaft extends through the top wall of the ink cartridge 41 into the interior of the ink cartridge 41. It is fixedly connected to the stirring blade 512 through a coupling or key. When the drive motor 511 is working, the output shaft can drive the stirring blade 512 to rotate inside the ink cartridge 41 to stir the ink. The rotation speed of the stirring blade 512 can be adjusted by the speed of the drive motor 511, which can be flexibly adjusted according to the viscosity characteristics of the ink to ensure the stirring effect.

[0022] To accommodate the mixing needs of different types of ink cartridges 41 and ink, the stirring blade 512 can be either a spiral blade or a paddle blade. The spiral blade generates axial thrust when rotating, causing the ink in the ink cartridge 41 to flow vertically and vertically, making the ink mix more evenly, which is especially suitable for ink cartridges 41 with a greater depth. The paddle blade can push the ink flow in the horizontal direction, which is suitable for ink cartridges 41 with a larger diameter. At the same time, there is a certain gap between the edge of the stirring blade 512 and the inner wall of the ink cartridge 41 to avoid friction between the stirring blade 512 and the inner wall of the ink cartridge 41 during rotation, preventing impurities from being generated by wear of the blade or the inner wall of the ink cartridge 41 and contaminating the ink. It also avoids overloading the drive motor 511 due to excessive frictional resistance.

[0023] The heating assembly 52 includes a heating element 521 and a temperature detection element 522. The heating element 521 is attached to or wrapped around the outside of the delivery pipeline 42 to ensure heating uniformity. The temperature detection element 522 can be a high-precision temperature sensor such as a thermocouple or platinum resistance thermometer. Its detection end is in close contact with the outer wall of the delivery pipeline 42, or it can extend into the internal flow channel of the delivery pipeline 42 through a detection hole to directly detect the ink temperature. When the heating element 521 is working, it generates heat, which can be transferred to the delivery pipeline 42 and the ink inside through heat conduction, so that the ink temperature is maintained within the set range. The temperature detection element 522 can collect the ink or pipeline temperature signal in real time and transmit the signal to the controller 6. When the temperature is lower than the set threshold, the controller 6 controls the heating element 521 to increase the power. When the temperature is higher than the set threshold, the controller 6 controls the heating element 521 to decrease the power or stop working, realizing closed-loop temperature control, which can avoid ink deterioration and evaporation due to excessive temperature, or condensation and blockage due to excessively low temperature.

[0024] To meet the heating requirements under different working conditions, the heating element 521 can be any one or more combinations of electric heating wire, heating film, or heating sleeve; among them, electric heating wire has a simple structure and heats up quickly; heating film is thin, has good adhesion, and heats evenly; heating sleeve can completely wrap the pipeline section, is easy to install, and has good heat preservation effect; by using a combination of various heating elements 521, both heating speed and uniformity can be taken into account, further improving the heating effect.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A finishing flaw detection ink mark positioning device, characterized in that, It includes a housing (1), a spray gun assembly (2), a cleaning structure (3), an ink supply assembly (4), an anti-condensation assembly (5), and a controller (6); the housing (1) is provided with an inlet (11) and an outlet (12) on both sides; the spray gun assembly (2) is located inside the housing (1) and includes a gun body (21) and a nozzle (22), with the nozzle (22) located at the front end of the gun body (21); The cleaning structure (3) includes an air blowing assembly (31) and a brush assembly (32). The air outlet of the air blowing assembly (31) faces the nozzle (22), and the brush assembly (32) is movably connected to the nozzle (22). The ink supply assembly (4) includes an ink cartridge (41) and a delivery pipeline (42). The ink cartridge (41) is connected to the nozzle (22) through the delivery pipeline (42). A liquid level sensor (411) is installed inside the ink cartridge (41), and a delivery device is installed on the delivery pipeline (42). The pump (421) and solenoid valve (422) are used; the anti-condensation component (5) includes a stirring component (51) and a heating component (52), the stirring component (51) is installed inside the ink cartridge (41), and the heating component (52) is located outside the delivery pipeline (42); the controller (6) is connected to the air blowing component (31), the brush component (32), the liquid level sensor (411), the delivery pump (421), the solenoid valve (422), the stirring component (51), and the heating component (52).

2. The finishing flaw detection ink mark positioning device as described in claim 1, characterized in that, The air blowing assembly (31) includes an air blowing nozzle (311) and an air supply line (312). The air blowing nozzle (311) is fixed inside the housing (1) by a bracket (313), and its air outlet direction is directly opposite the end of the nozzle (22). The air supply line (312) is connected to a high-pressure air source (314).

3. The finishing flaw detection ink mark positioning device as described in claim 1, characterized in that, The brush assembly (32) includes a drive member (321), a transmission mechanism (322), and a brush head (323). The drive member (321) drives the brush head (323) to reciprocate in a direction parallel to the axis of the nozzle (22) through the transmission mechanism (322), so that the brush head (323) can be fitted outside the nozzle (22) or separated from the nozzle (22).

4. The finishing flaw detection ink mark positioning device as described in claim 3, characterized in that, The brush head (323) is provided with flexible bristles (3231) inside. When the brush head (323) is sleeved on the outside of the nozzle (22), the flexible bristles (3231) are in close contact with the outer peripheral surface of the nozzle (22).

5. The finishing flaw detection ink mark positioning device as described in claim 1, characterized in that, The stirring assembly (51) includes a drive motor (511) and a stirring blade (512). The drive motor (511) is mounted on the top of the ink cartridge (41), and its output shaft extends into the interior of the ink cartridge (41) and is connected to the stirring blade (512).

6. The finishing flaw detection ink mark positioning device as described in claim 5, characterized in that, The stirring blade (512) is a spiral blade or a paddle blade, and there is a gap between its edge and the inner wall of the ink cartridge (41).

7. The finishing flaw detection ink mark positioning device as described in claim 1, characterized in that, The heating component (52) includes a heating element (521) and a temperature detection element (522). The heating element (521) is attached to or wrapped around the outside of the conveying pipeline (42), and the detection end of the temperature detection element (522) is in contact with the outer wall or internal flow channel of the conveying pipeline (42).

8. The finishing flaw detection ink mark positioning device as described in claim 7, characterized in that, The heating element (521) is any one or more combinations of an electric heating wire, a heating film, or a heating sleeve.

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