61 results about "Scratch marks" patented technology

The invention provides a gearbox defect detection method and device based on multi-scale feature extraction, and the method comprises the steps: carrying out the preprocessing of multi-source data, carrying out the feature extraction of the preprocessed multi-source data through employing a plurality of convolution kernels, and obtaining multi-scale features. And carrying out feature fusion on the multi-scale features by adopting an attention mechanism. And performing feature reconstruction on the fused features by using a feature reconstruction model to obtain reconstructed features. And calculating a reconstruction error according to the reconstructed features, and identifying gear box defect features according to the reconstruction error. The first convolution kernel is used for capturing fine scratches on the tooth surface, the second convolution kernel is used for identifying abnormal meshing of the gear, and the third convolution kernel is used for detecting whether defects such as bearing outer ring peeling and tooth surface fatigue peeling exist or not. According to the method, the operation state of the gearbox can be monitored in an all-around mode, the accurate gearbox defect recognition result is generated, the cross-working-condition detection precision is improved, process automation is achieved, the operation reliability of the gearbox is remarkably improved, and the service life of the gearbox is remarkably prolonged.

The utility model relates to an automatic detection device for scratches on the surface of a connecting piece, which comprises an operation table and a disc rotatably arranged on the operation table, a plurality of detection grooves are uniformly formed in the top surface of the disc along the circumferential direction, and a blanking assembly is arranged on the operation table. A driving mechanism and a detection assembly are arranged on the operation table, the driving mechanism is connected with the disc, the detection assembly is connected with the driving mechanism through a transmission structure, and when the driving mechanism operates, the disc and the detection assembly alternately rotate, so that the connection pieces are detected to be detected. According to the utility model, through mutual cooperation of the driving mechanism, the disc, the transmission structure and the detection assembly, automatic blanking and front and back detection of the connecting sheet can be completed, and a mechanical cooperation mode is adopted, so that the manual labor force is reduced, and the detection accuracy and efficiency are greatly improved.

The invention belongs to a material self-healing performance evaluation method, and particularly relates to a dental self-healing material self-healing performance multi-element evaluation method, which comprises the following steps: making a dental self-healing material into a test piece for multi-element evaluation; preparing scratches on the surface of the test piece to simulate microcracks, and then performing self-healing on the test piece with the scratches; the healing state of the dental self-healing material is obtained in the self-healing process, and the obtaining mode comprises the steps of (1) obtaining a test piece image through a stereoscopic microscope, (2) obtaining a test piece model through a dental laboratory scanner, and (3) obtaining the fracture toughness of the test piece through a three-point bending test; calculating healing efficiency in different modes; and setting an influence weight based on different healing efficiency acquisition methods, and calculating the total healing efficiency. Compared with the prior art, the problems that the practical application scene of the dental self-healing material in the oral cavity cannot be reflected and the form is single in the prior art are solved. According to the scheme, healing efficiency evaluation is performed on the self-healing performance from multiple angles, so that the condition of the dental material in the actual scene of the oral cavity is better met.

Structured surfaces are described. In one embodiment, the structured surface comprises a plurality of structures having complement cumulative slope magnitude distribution (Fcc) such that at least 30, 40, 50, 60, 70, 80 or 90% of structures have a slope greater than 10 degrees; and less than 80% of the structures have a slope greater than 35 degrees. In other embodiments, the structures comprise peaks and valleys defined by a Cartesian coordinate system such that the peaks and valleys have a width and length in the x-y plane and a height in the z-direction and at least a portion of the peaks and / or valleys vary in height in the y direction and / or the x-direction by at least 10% of the average height. Articles and methods are also described.

The invention provides an aircraft part arc detection device and a stability evaluation method thereof, the detection device comprises a dial indicator, a fixing screw and a detection frame, the detection frame is of a three-jaw equally-divided structure, a through hole through which the fixing screw can penetrate is formed in the detection frame, and the detection frame is fixed in the middle of a measuring rod of the dial indicator through the fixing screw; according to the detection method, the surface hole depth of the measured convex arc or concave arc and the depth of the butt joint gap can be obtained through the measuring dial indicator according to the bowstring method measuring principle. The device is a handheld arc surface detection device, is convenient to operate, is easy for on-site online operation, is higher in measurement precision, solves the problem of poor measurement precision of a hook ruler used on site, and can be matched with a measurement needle to perform high-precision measurement on small holes, skin butt joint depth and scratch depth of the skin.

The invention relates to the technical field of image processing, and discloses a leather surface defect detection system based on multi-modal fusion. According to the system, leather surface images are obtained through an HDR optical imaging module and synthesized into high-dynamic-range images, a 3D point cloud reconstruction module converts the images into three-dimensional point cloud data, a data fusion module effectively integrates the HDR images and the three-dimensional point cloud data through an image registration technology, a multi-modal data set is formed, and the multi-modal data set is stored in a database. The feature extraction module extracts various features related to the leather surface defects from the multi-modal data set, the features are then input into the deep learning detection module, and the deep learning detection module efficiently identifies and classifies the leather defects by using a trained deep learning model; the self-adaptive calibration module adjusts parameters of a deep learning model in real time according to a detection result, through a self-adaptive calibration algorithm driven by deep learning, the problem of recognition of tiny scratches and wrinkle defects under the interference of leather textures can be effectively solved, and the detection precision reaches up to 99.2%.

The utility model aims to overcome the defects, provides novel profiling equipment for side wing assembly, provides positioning and supporting for a product, and solves the problems that the product is bent and deformed and the surface of a skin is scratched and damaged due to mounting force when the side wing is assembled. The printer is placed on the profiling equipment frame and used for printing product labels. A table top in the upper profiling supporting frame is fixed to the profiling equipment frame through bolts, a floor support in the lower profiling supporting frame is fixed to the profiling equipment frame through bolts, and the right side wing and the left side wing are placed on the upper profiling supporting frame and the lower profiling supporting frame respectively. The utility model has the advantages and positive effects that the platform of the assembly equipment is realized, the product change is realized, a plurality of products can be met only by updating the upper profiling support frame and the lower profiling support frame, meanwhile, the equipment is low in manufacturing cost, spare parts are easy to replace, and the cost is saved for enterprises.

Provided is a method for masking scuff and / or scratch marks that develop over time on containers. More specifically, the method includes coating the scuff and / or scratch marks on the container with a coating composition that includes renewable and sustainable oils and surfactants, and optionally a diluting solvent. The coating composition is disposed on the outer surface of the container, thus masking or covering the scuff and / or scratch marks on the container.

This invention provides a rapid assessment method for fatigue cracks and scratches on the surface of metal components. It is a detection and analysis method for distinguishing between fatigue cracks and micro-scratches on metal surfaces, and for analyzing and predicting defect development. Its key feature is that it differentiates between fatigue cracks and micro-scratches by detecting and identifying the shape of the opening extending along the depth direction of the defect. This invention utilizes a large amount of data analysis to determine the shape of the defect opening edge, achieving clear differentiation and significantly reducing safety hazards caused by missed detections.

To provide an ink which exhibits little change in glare of the coated film even when scratch marks, such as those made by a nail, occur upon use in an ink-hardly-absorbable printing medium, particularly in coated paper such as offset coated paper, and which is excellent in storage stability; an ink medium set comprising the ink and the printing medium; and a method for improving the scratch resistance thereof.SOLUTION: An ink composition contains a water-insoluble coloring agent selected from the group consisting of a pigment, a dispersion dye and a solvent dye, a resin as a dispersion agent having a weight average molecular weight of less than 50,000, at least one or more resin emulsions having a weight average molecular weight of 50,000 or more, and a silane-modified silica sol having a particle size of 3 nm or more and less than 35 nm.SELECTED DRAWING: None

This aims to improve insulation while preventing the problem of scratches on the profiles. [Solution] This is a fixture constructed by attaching a panel 25 to the inside of a new frame body 20 comprising a new upper frame 21 and a new vertical frame 23. The new vertical frame 23 has a metal frame section 23A on the outside of the room and a resin frame section 23B on the inside of the room, and the resin frame section 23B has a metal upper indoor-side member 45 on the part facing the room.

The application discloses a method for comprehensive repair of scratches in old photos, wherein a deep learning model network is trained, scratches and faces in the photos are detected through different detectors, and the scratches and faces are repaired through different technical solutions; even if a portrait photo with a damaged face, a small target face detection algorithm and a face generation recovery network can also have a good repair effect.

The invention belongs to the technical field of aircraft damage detection, and discloses an improved YOLO11-based aircraft skin damage detection method and system, and the method comprises the steps: obtaining an aircraft skin image; constructing an aircraft skin damage detection model; and based on the aircraft skin damage detection model, analyzing the aircraft skin image, and identifying different types of damages such as paint layer peeling, dents, cracks, corrosion and scratches. The aircraft skin damage detection efficiency can be effectively improved, manual intervention is reduced, and the flight safety is improved.

The present application relates to the technical field of image detection, and particularly relates to a steel plate surface scratch detection method based on dynamic programming. The original image of the steel plate is acquired by a camera, and then scratch detection is performed on the original image. The scratch detection method comprises the following steps: step one, acquiring the image of the steel plate; step two, performing filtering, convolution and other pretreatments on the image of the steel plate; step three, performing dynamic programming processing on the pretreated image to obtain the optimal scratch path; step four, performing gradient solving and morphological operation on the energy value of the path, and screening the scratch position according to the preset condition; and step five, splicing the scratches. The present application is suitable for detecting fine scratches and discontinuous scratches on the surface of the steel plate, has the advantages of fast detection speed, strong anti-noise capability and no need for sample training, and can meet the actual application requirements.

The present invention relates to a corneal astigmatism positioning marking device, belonging to the technical field of medical devices. The positioning disk with an eyelid opening function is used to open the upper and lower eyelids and fully expose the corneal tissue, making manual operation more convenient when locating astigmatism. The upper layer is a 360-degree positioning circumference, and the surface is evenly provided with angle scale lines and values. The minimum indication of the angle scale line is 1 degree, and the angle value is set every 5 degrees. A support beam is fixedly arranged between the inner walls of the positioning disk and is used to support a marker and a pointer. The pointer is rotatably arranged on the support beam and is used to point to the angle scale line of the positioning disk. The marker is slidably arranged on the support beam and is used to engrave and color the direction indicated by the pointer. The engraving depth is 40-50μm. The present invention adopts an integrated device of axial precise positioning and marking and scratching, making positioning more accurate and operation more convenient.

This utility model discloses a self-adhesive material that reduces scratches, comprising a self-adhesive body. The self-adhesive body includes a face material layer, a first adhesive, and a first release paper. The first adhesive is disposed below the face material layer and adhered to the first release paper. A transparent film is adhered to the face material layer, and a second adhesive is disposed on both sides of the bottom of the transparent film. By using the second adhesive, this utility model can fix the transparent film, so that the transparent film can fully cover the face material layer of the self-adhesive body, effectively preventing external forces from directly contacting the self-adhesive body, thereby effectively reducing the generation of scratches, greatly improving the aesthetics of the self-adhesive body, avoiding damage to the patterns or text on the surface of the face material layer of the self-adhesive body, and the transparent film is directly adhered to the adhesive surface, making it convenient to quickly remove the transparent film if it is damaged in the future, without damaging the self-adhesive body.

The invention provides a coating performance detection method and system and a storage medium. The coating performance detection method comprises the following steps: acquiring coating surface appearance information of a sample with a self-repairing coating; wherein the coating surface of the sample is subjected to scratch treatment in advance, and the scratch treatment is used for forming scratches on the coating surface of the sample; determining a first detection result according to the appearance information of the coating surface; and acquiring scratch repair information, determining a second detection result according to the scratch repair information, and determining a comprehensive detection result according to the first detection result and the second detection result. In the embodiment of the invention, the comprehensive detection result can reflect the damage resistance and the self-repairing performance of the self-repairing coating, so that the performance of the self-repairing coating can be comprehensively evaluated, and guidance is provided for research and selection of the self-repairing coating.

This invention discloses a method for obtaining the brittle-plastic transition depth of a two-phase composite material. The method involves using a metallographic microscope to capture a microscopic image of the scratch surface morphology. The locations of the first small pit and the first large pit in the scratch are determined from this image. Then, the distances from these two locations to the scratch incision point are measured using a measuring scale. The three-dimensional morphology of the scratch groove is obtained by photographing it using a white light interferometer. Based on the distances obtained from the measuring scale, the starting point (first small pit) and the ending point (first large pit) of the brittle-plastic transition zone are determined. The cross-sectional profile curve of the scratch at these locations is then captured, and the groove depth is measured. This invention combines the microscopic morphology captured by a microscope with the three-dimensional morphology obtained by white light interferometry to accurately determine the location and depth of the brittle-plastic transition in the material. This avoids interference from defects in the two-phase composite material itself or surface impurities and dust, effectively improving the accuracy of the test results.

The present invention provides a skin repair efficacy evaluation modeling device based on a machine learning model, which relates to the technical field of skin repair. The method comprises: a friction module, which is used to apply uniform friction force on the skin surface; a scratch module, which is used to make scratches on the surface of a three-dimensional skin model of a human body; a friction number counting module, which is used to record the number of frictions; a force control module, which is used to control the friction force applied to the skin; a speed control module, which is used to control the friction speed on the skin; a scratch control module, which is used to control the length of the scratch generated by friction on the skin; an angle control module, which is used to adjust the scratch angle on the skin; a feedback module, which is used to measure the erythema index and hemoglobin content of the skin through a multi-spectral imaging device; a central control module, which is used to control a force control module, a speed control module, a scratch control module and a position control module; and a safety protection module, which is used to provide safety protection through an emergency stop button and a safety guardrail.

The utility model provides a depth-keeping skin-breaking-preventing skin scratch tester, and belongs to the technical field of skin scratch experiments. The depth-keeping skin-breakage-preventing skin scratch tester comprises a mounting frame and a scratching mechanism, mounting grooves are formed in the two sides of the mounting frame, a stabilizing mechanism is mounted on the inner side of the mounting frame, a movable groove is formed in the top of the mounting frame, a movable rod is mounted at the top of the movable groove, and the bottom of the movable rod penetrates to the bottom of the movable groove. By arranging the stabilizing mechanism and the scratching mechanism, after the stabilizing mechanism is installed through the installation frame, the arc-shaped face of the attaching pad can be attached to the arm of a patient needing to be subjected to a scratching experiment, the scratching mechanism can be conveniently used, and the scratching device is convenient to use. And therefore, the scratching mechanism can be conveniently used for carrying out a scratching experiment on the arm of the patient, the downward moving distance of the scratching mechanism can be controlled for carrying out the scratching experiment, and the situation of skin breakage caused during the experiment is avoided.

The invention belongs to the technical field of spaceflight part surface quality detection, and particularly discloses a spaceflight scratch / tool mark depth rapid measuring device which comprises at least one comparison test block used for conducting visual comparison with the surface of a detected metal part, and the base material of the comparison test block is the same as the metal material of the detected metal part; a plurality of standard depth defects are sequentially processed on the comparison test block along the length direction, and identifiers for indicating the depth values of the standard depth defects are also arranged on the comparison test block. According to the method, standard scratches or steps with different depths are machined in advance, the defect depth can be judged only through visual comparison under the unified illumination and observation conditions during detection, and compared with a traditional optical microscopy, laser measurement or contact pin type contourgraph method, the detection efficiency is remarkably improved; the invention further discloses a measuring method, the reliability of judgment is improved, and the method has good adaptability to scratches and tool marks of different materials, different roughness and different types.

The utility model discloses a pair of slippers capable of avoiding flow marks, and relates to the field of slippers. The slipper comprises a slipper body, a mounting sleeve is arranged at the top of the slipper body, mounting grooves are formed in the surfaces of the slipper body and the mounting sleeve, anti-skid nails are arranged below clamping pieces, the sizes of the anti-skid nails and the sizes of the mounting grooves are matched, and the anti-skid nails and the mounting grooves are arranged in an inserted mode. Firstly, the mounting sleeve is placed at the top of the slipper body, then the anti-skid nails are inserted into the mounting grooves, after a user uses the slipper, the corners of the mounting sleeve can be easily pulled down with the hand, the anti-skid nails are separated from the mounting grooves, and therefore the mounting sleeve can be conveniently taken down to be cleaned or replaced, the slipper body is protected, and the anti-skid effect is achieved. Scratches and stains possibly left when the slippers are repeatedly used in bathing places or other public areas are avoided, the convenience of repeated use of the slippers is improved, and the slippers are anti-slip, sanitary and convenient to use.

The invention relates to the technical field of vacuum cup surface detection, and discloses a vacuum cup surface defect automatic detection and classification system based on image recognition, which comprises a scratch recognition module, and the scratch recognition module is used for carrying out high-resolution image shooting on the surface of a produced vacuum cup by using an image acquisition device, recognizing the number, length and depth data of scratches on the surface of the vacuum cup by combining laser scanning equipment; and the defect classification module is used for obtaining a repair difficulty index according to the number, depth and length of the scratches on the surface of the vacuum cup, and comparing the repair difficulty index with a repair difficulty threshold value. According to the method, scratches are automatically detected through image recognition, manual intervention is reduced, the method is suitable for efficient quality control in a large-batch production environment, the system can accurately measure the number, length and depth of the scratches, and reliable data support is provided for evaluating the severity and repair difficulty of the scratches.

The invention discloses a bearing outer ring surface defect detection method based on improved YOLOv8n, and belongs to the field of target detection. The method sequentially comprises the following steps: step a, acquiring an image of surface defects of the bearing outer ring, wherein the defects comprise grooves, scratches, scratches and stains; b, preprocessing the surface defect image of the bearing outer ring, and constructing a complete data set; c, improving the YOLOv8n model, and introducing an attention module, a sampling module and a feature extraction fusion module; d, an improved YOLOv8n model is trained; step e, outputting an improved YOLOv8n optimal model; step f, testing the improved YOLOv8n optimal model; experimental results show that by introducing the attention mechanism, the down-sampling module and the feature extraction and fusion module, the detection precision is improved, the complexity of the model is reduced, the operation speed is improved, and meanwhile the capacity of the model for recognizing complex defects is improved.

The utility model relates to a double-face cleaning basket partition plate tool which comprises a net-shaped partition plate, and an anti-scratching assembly is installed on the surface of one side of the partition plate. A plurality of cylindrical supporting legs B are uniformly and fixedly connected to the edge of the surface of one side of the partition plate at intervals, and a plurality of supporting legs A are uniformly and fixedly connected to the edge of the surface of the other side of the partition plate at intervals; when the multiple partition plates are stacked up and down, the multiple supporting legs A on the upper partition plate can be inserted into the multiple supporting legs B on the lower partition plate respectively in every two adjacent partition plates. The cleaning device has the advantages of being simple in structure, reasonable in design, capable of achieving cleaning of various parts, small in size, convenient to clean and capable of effectively reducing the risk that the parts are scratched due to friction. In addition, the cleaning partition plates on the same face can be stacked, the supporting legs A can be sleeved with the supporting legs B, and the space utilization rate of the cleaning machine is increased.

To provide a watch component and a method for manufacturing a watch component, the watch component having a pear-skin texture processed so that scratches are less noticeable even when gripped with tweezers.SOLUTION: The present invention relates to a watch component in which a pear-skin texture is formed, the average value of RSm of the roughness profile of the surface of the pear-skin texture being at least 40 μm and 135 μm or less, and the average value of a skewness Rsk of the roughness profile being at least -3.1 and 0 or less.SELECTED DRAWING: Figure 5A

The invention discloses a scratch-resistant automotive rubber-coated PC / ABS soft skin composite material and a preparation method thereof. The scratch-resistant automotive rubber-coated PC / ABS soft skin composite material comprises the following raw materials in parts by weight: 10-30 parts of hydrogenated styrene elastomer; 10 to 30 parts of a semi-hydrogenated styrene elastomer; 20 to 50 parts of a polyurethane elastomer; 20-50 parts of a plasticizer; 2 to 20 parts of a maleic anhydride graft; 1-5 parts of a scratch resistant agent; and 0.5-5 parts of an anti-oxidation and anti-ultraviolet auxiliary agent. The scratch-resistant rubber-coated PC / ABS soft skin composite material for the vehicle is prepared by a twin-screw composite modification process, has excellent scratch resistance, small cross scratch color difference and unobvious fingernail scratch marks, and is superior to common elastomer materials in the market; according to the scratch-resistant rubber-coated PC / ABS soft skin composite material for the vehicle, the production process is double-color injection molding integral forming, compared with a traditional coating process, the production steps are greatly simplified, and the forming period is shortened to 40-80 s from original 5-20 min.

The invention discloses a toughened scratch-resistant polypropylene composite material, comprising the following components: polypropylene resin, maleic anhydride grafted polyethylene, modified nano silicon carbide, organosilane coupling agent, inorganic filler, antioxidant, stearic acid, elastomer, nano zinc oxide; wherein, the weight ratio of polypropylene resin to maleic anhydride grafted polyethylene is 10:1; wherein, the nano zinc oxide particle size is 30-40nm; the polypropylene composite material prepared by the present invention not only has excellent mechanical properties, but also has excellent scratch resistance. The present invention introduces modified nano silicon carbide into the polypropylene composite material, and due to its small particle size and large specific surface area, the physical and chemical defects on the surface increase, and the chance of these nanoparticles physically or chemically combining with polymer chains increases, making the molecular chain difficult to slide and break, thereby enhancing the rigidity of the matrix. The improvement of this rigidity helps to resist the generation of external scratches, thereby improving the scratch resistance of the material.

The invention discloses a method for testing the adhesive force of a tooth or tooth-like material interface and application. The method comprises the following steps: carrying out scratch test on a to-be-tested surface layer by using linear loading force in a specified range by adopting a micro-adhesion tester or an atomic force microscope; scratches are divided into three stages, in the first stage, linear loading force is used for detecting height changes in the whole process, in the second stage, scraping is slight and discontinuous, obvious furrows do not appear, in the third stage, obvious furrows appear, but the width of the furrows is narrow, and obvious base body scratches cannot be observed in the centers of the furrows; calculating a sudden change point load of the to-be-tested surface as an index for evaluating the adhesive force; the linear loading force in the specified range is the force from the minimum force for breaking the to-be-tested surface to the force for puncturing the to-be-tested surface without forming obvious scratches on the substrate. According to the method, the adhesive force of the in-vitro biological model can be tested, the comparability of different research data is ensured, a unified in-vitro test standard can be formulated, and a foundation is laid for promoting industry standardization.