63 results about "Metallic foreign body" patented technology

The application relates to the technical field of textile detection, and discloses an automatic detection and rejection device for textiles, which comprises a base, a transmission device for transmitting the textile to be detected, a first detection mechanism for detecting metal foreign matters in the textile to be detected, a second detection mechanism for detecting non-metal foreign matters in the textile to be detected, a cleaning mechanism for cleaning the transmission belt, a rejection mechanism arranged at the rear end of the first detection mechanism and the second detection mechanism respectively and used for rejecting the textile containing foreign matters, and a slide way installed at the rear end of the first detection mechanism and the second detection mechanism and used for conveying the textile containing foreign matters. The textile to be detected is conveyed to the first detection mechanism and the second detection mechanism by the transmission device, metal foreign matters and non-metal foreign matters in the textile can be separated and detected at the same time, and the detection accuracy is greatly improved.

The application relates to the field of battery detection. The application can effectively detect metal foreign matters in battery materials. The application discloses a metal foreign matter detection method, device, electronic device and storage medium for battery materials. The metal foreign matter detection method comprises the following steps: performing X-ray imaging on the battery material to obtain a material image; processing the material image to obtain a metal foreign matter image; and counting target metal foreign matters in the metal foreign matter image to obtain the number of the target metal foreign matters. In the metal foreign matter detection method, the battery material is subjected to X-ray imaging to obtain a material image, and the material image is processed to obtain a metal foreign matter image, so that the number of target metal foreign matters can be effectively detected.

This utility model relates to the field of extrusion device technology, specifically to a precise temperature-controlled thermoplastic elastomer production extrusion device, including an extruder body with a feed inlet and a discharge channel. An outer cover is fixedly connected to the discharge channel. The outer cover contains a screening component for screening for metal foreign objects in the material. The screening component includes a receiving box located inside the outer cover, with a movable frame slidably connected to the receiving box. This utility model uses the screening component to allow material from the feed hopper to enter the receiving box. A motor-driven metal detector then screens and checks the material in the receiving box for metal foreign objects. If no foreign objects are found, a cam divider rotates the receiving box, discharging the material into the extruder body. If foreign objects are found, a drive component pushes the outer cover, separating the discharge channel from the feed inlet, thus facilitating the discharge of material containing foreign objects.

The present application discloses a kind of clothes processing equipment and metal foreign matter detection method, the clothes processing equipment includes the metal detection module and infrared induction module being arranged at clothes delivery port;The metal foreign matter detection method includes: if it is judged that the interval time of the trigger signal generated by infrared induction module and the signal sensed by metal detection module exceeds the set interval time, it can be inferred that the user performs the clothes taking action, and the alarm device is not controlled to work.The above-mentioned metal foreign matter detection method provided by the present application can accurately distinguish and judge whether the user is throwing clothes or taking clothes.When it is judged that the interval time of the trigger signal generated by infrared induction module and the signal sensed by metal detection module exceeds the set interval time, it is inferred that the user is performing the clothes taking action, and the alarm device is not controlled to work, to avoid false alarm when taking clothes to bring the user's distress, improve the user's experience.

The utility model relates to foreign matter detection equipment for dried longan production, which comprises a frame and a first conveyor belt mounted on the frame, a push plate and a slide plate are respectively arranged on two opposite sides of the first conveyor belt, a metal detector positioned right above the first conveyor belt is arranged between the push plate and the slide plate, a second conveyor belt is arranged below the slide plate, and the second conveyor belt is arranged below the slide plate. A plurality of collecting boxes distributed at equal intervals are placed on the second conveying belt, one collecting box is located under the end, away from the first conveying belt, of the sliding plate, a driving unit used for driving the push plate to move in the direction close to or away from the sliding plate is arranged on the rack, and a controller is arranged in the rack. The first conveying belt, the second conveying belt, the metal detector and the driving unit are all electrically connected with the controller; when the metal detector detects that dried longans on the first conveyor belt contain metal foreign matters, the push plate pushes the dried longans containing the metal foreign matters into the collection box, so that the stop time of the first conveyor belt is shortened, and the metal detection efficiency is further improved.

The present invention detects foreign metal matter of a prescribed size that is deposited on a substrate. A detection device (1) comprises an electrode sheet (5), a measurement unit (31), and a determination unit (32). The electrode sheet (5) has a pair of counter electrodes (11, 12) and an insulating sheet (13). The pair of counter electrodes (11, 12) include a first counter electrode (11) and a second counter electrode (12). The insulating sheet (13) supports the pair of counter electrodes (11, 12). The first counter electrode (11) has a plurality of first wiring electrode parts, and the second counter electrode (12) has a plurality of second wiring electrode parts. The plurality of second wiring electrode parts alternate with the plurality of first wiring electrode parts with a space (s1) therebetween. The measurement unit (31) measures an electrical value between the pair of counter electrodes (11, 12) of the electrode sheet (5). On the basis of measurement results from the measurement unit (31), the determination unit (32) determines whether short circuits occur between the pair of counter electrodes (11, 12) due to foreign metal matter (F1) deposited on a substrate (10). The electrode sheet (5) is provided to an outer circumferential surface (6a) of a roller (6) that moves in a relative manner over the substrate (10).

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a battery production process metal foreign matter rapid detection and screening method and management and control system, and the method comprises the following steps: S1, key point location identification and system deployment and control; s2, rapid collection and sampling; s3, rapid detection and correlation analysis; and S4, performing rapid feedback and source management and control. According to the invention, a closed-loop management and control system of collection-detection-analysis-feedback is constructed, a gate for management and control of metal foreign matters is moved forward from post-event inspection to process prevention, and near-real-time monitoring and rapid traceability are realized.

The invention relates to the technical field of metal foreign matter detection, and discloses a metal foreign matter detection system of a wireless charging system, which comprises an active excitation coil arranged in a wireless charging area of the wireless charging system and positioned above a transmitting coil of the wireless charging system, and a detection coil positioned above the active excitation coil, the active excitation coil is composed of a pair of D-shaped coils which are reversely connected in series on a circuit, are arranged left and right in a space and have the same geometric parameters, and the active excitation coil is driven to form a detection magnetic field in a wireless charging area; the detection coil comprises a plurality of detection channels, and each detection channel is composed of a pair of coils which are reversely connected in series on a circuit, are symmetrically arranged in a space up and down and have the same geometric parameters. By detecting the output voltage of each detection channel in the coil under the detection magnetic field or the combined magnetic field of the detection magnetic field and the energy transmission magnetic field of the wireless charging system, the metal foreign matters in the wireless charging area are detected before and after the wireless charging system starts charging.

To provide a pediatric surgical device for removing metal objects from the digestive tract. [Solution] The pediatric surgical device has an adjustable frame 1, with position-limiting rings 2 fixedly connected to both the left and right side walls of the adjustable frame, a contact plate 3 provided above the adjustable frame, a sliding rod 4 fixedly connected to the lower end of the contact plate, the lower end of the sliding rod passing through the upper side wall of the adjustable frame and fixedly connected to a traction rope 7, an elastic storage mechanism 6 provided at the lower end of the extension outer tube 5, and a clamping mechanism provided at the lower end of the traction rope. By installing the elastic storage mechanism, the entire foreign object is softly encased after being clamped, preventing the corners of the foreign object or the edges of the instrument from injuring the gastrointestinal mucosa, thereby significantly improving the safety of pediatric surgical procedures.

The invention relates to a coil structure for detecting metal foreign matters and a manufacturing method thereof, the coil structure comprises a main coil and an auxiliary coil which are integrally wound into a whole by connecting a single copper wire in series, and the auxiliary coil is positioned on the side surface of the main coil and faces the center of the main coil. The single copper wires are connected in series and integrally wound into the integral main coil and auxiliary coil, when current flows through, the coils can generate magnetic fields in corresponding directions due to different positions of the coils, finally metal foreign matters in multiple directions are detected, and missing detection is avoided.

The utility model relates to the technical field of food safety, in particular to a metal foreign matter food detection device. The utility model provides a metal foreign matter food detection device which comprises a rack, a belt conveyor, a mounting frame and the like, the belt conveyor is mounted in the rack, and the mounting frame is mounted on the rack. By arranging a connecting plate, a collecting frame, a mounting plate, a motor, a rotating shaft, a pushing plate, a connecting frame, a pulley and a guide frame, when food containing metal foreign matter is detected, only a belt conveyor needs to be stopped, then the motor is started and drives the rotating shaft to rotate, and then the pushing plate connected with the rotating shaft is driven to move along the guide frame; the pushing plate can accurately push food containing metal foreign matter into the collecting frame from the conveying belt, rapid and automatic removing operation is achieved, the trouble that manual intervention is needed or a belt conveyor runs reversely in a traditional method is avoided, and the continuity and high efficiency of a production line are guaranteed.

This application relates to the field of materials testing technology and provides a separation and detection method suitable for the separation and detection of metallic magnetic foreign matter in lithium iron phosphate. The method includes the following steps: obtaining a primary concentrate from lithium iron phosphate slurry using a magnetic rod; placing the primary concentrate in an aqueous solution containing a viscous dispersant, using a magnet to attract and move it, separating the strongly magnetic metallic foreign matter; performing microscopic observation on the weakly magnetic impurities discharged after separation to distinguish the strongly magnetic metallic foreign matter from iron phosphide; and performing digestion treatment on the strongly magnetic metallic foreign matter and performing elemental quantitative analysis. This application achieves efficient separation of strongly magnetic metallic foreign matter from iron phosphide through a three-stage treatment method of primary screening, viscous dispersant separation, and digestion treatment, thereby improving the accuracy of the detection results. Microscopic observation further verifies and ensures the separation effect of strongly magnetic metallic foreign matter from the weakly magnetic impurity iron phosphide, thus contributing to the accuracy of the detection results.

The invention discloses a temperature control system for wireless charging and a foreign matter detection method, and relates to the technical field of vehicle-mounted wireless charging. The system comprises a voltage division temperature measurement circuit formed by connecting a positive temperature coefficient thermistor and a negative temperature coefficient thermistor in series, and a voltage division node of the voltage division temperature measurement circuit is connected to an ADC interface of an MCU and is filtered through a capacitor; and the MCU outputs a PWM signal to control the active heat dissipation device according to the difference value between the voltage of the voltage division node and the reference voltage, so that the system temperature is stabilized at a target value. And in the stable temperature environment, the system executes resonant cavity quality factor calculation and metal foreign matter detection and judgment, or further collects multiple paths of time sequence data and inputs the data into a pre-trained time sequence classification model, so that intelligent identification of receiving equipment and foreign matter types is realized. The problems of inaccurate Q value measurement and FOD false alarm caused by temperature fluctuation are effectively solved, and the detection precision and the system reliability are improved.

The utility model discloses a quick fixing mechanism for an ACF (anisotropic conductive film) disc. The quick fixing mechanism comprises a mounting mechanism, a knob component, the ACF disc, a fixing piece and a magnetic attraction component, the knob component is arranged on the mounting mechanism, and a metal buckle is arranged on the knob component; the ACF plate is sleeved on the knob component, and the metal buckle penetrates out of a central hole of the ACF plate; the fixing piece is provided with a bayonet which is matched with the metal buckle and arranged in a penetrating mode, and the fixing piece is connected with the ACF disc in a clamped mode. The magnetic attraction component is fixed in the bayonet and located in the middle of the bayonet. According to the utility model, after the fixing piece internally provided with the magnetic attraction part is assembled with the ACF disc, the magnetic attraction part attracts the metal buckle, so that the ACF disc is rapidly fixed, and the installation is rapid and convenient; besides, the first buckle and the second buckle which are different are arranged at the two ends of the fixing piece, so that ACF discs of different specifications can be adapted, the risk of metal foreign matters is completely eradicated, and the quality of products meets the requirements.

The present application relates to the technical field of wireless power transmission, and specifically discloses a foreign matter identification method and system for a wireless charging area, which first installs ultrasonic sensors, light sensors and imaging modules on a wireless charging parking space, and then uses the ultrasonic sensors, light sensors and imaging modules to detect and identify foreign matters in the wireless charging area of the wireless charging parking space. The present application combines image processing technology and uses a neural network model to identify the types of foreign matters, which can have high foreign matter identification accuracy, can accurately distinguish whether the foreign matter in the wireless charging area is a metal foreign matter, a biological foreign matter or other foreign matter, and can mark the positions of the foreign matters, and can be combined with a foreign matter removal device, method and power control method for application.

Container that feeds a powdered resin material to a kneading machine located below the container, and which has the following features: a container body; and a magnetic sieve that is arranged in the container body and captures metallic foreign substances, wherein the magnetic sieve has an attraction part which is arranged in an interior of the container body to cross a conveying direction of the powdered resin material and is magnetized, and has an opening section which allows the powdered resin material falling from above the magnetic sieve to pass downwards, and wherein the attraction part has a drop-guiding surface which is inclined downwards towards the opening section on an upper surface of the attraction part.

The application belongs to the technical field of foreign matter detection in crushing equipment, and discloses a hydraulic jaw crusher over-iron amount detection method and system. The method comprises the following steps: presetting a detection test wave, the detection test wave being sent in a specific area of the equipment and being propagated; presetting a plurality of wear state partitions, establishing a preset baseline feature library corresponding to each wear state partition, and each wear state partition corresponding to each wear state of the equipment; receiving a response signal after the propagation of the detection test wave; analyzing the response signal, obtaining a modulation response after the propagation of the detection test wave; judging the current wear state partition, obtaining a preset baseline feature library corresponding to the current wear state partition, comparing the preset baseline feature library and the modulation response, and judging whether there is metal foreign matter, so that small-size metal foreign matter can be effectively identified, and the cumulative damage to the crusher can be reduced.

The present application belongs to the technical field of washing machines, and discloses an outer drum assembly and a washing machine, wherein the outer drum assembly comprises: an outer drum; and an electromagnetic heating device installed on the outer drum to generate an alternating magnetic field radiating outward, and the alternating magnetic field forms a coverage area on the outer drum; and a foreign matter collecting groove is arranged on the inner surface of the outer drum along the outer periphery of the coverage area. In the present application, the electromagnetic heating device is installed on the outer drum and applied to the washing machine to realize non-contact heating of washing water. The foreign matter collecting groove is arranged on the inner side of the outer drum along the outer periphery of the coverage area of the electromagnetic heating device, so that the metal foreign matter remaining in the outer drum can fall into the foreign matter collecting groove, thereby avoiding the problem that the metal foreign matter remains in the coverage area, is heated by the alternating magnetic field generated by the electromagnetic heating device, and further causes the outer drum or the electromagnetic heating device to be damaged by high temperature.

The application relates to a flexible transmission system of a steam generator secondary side metal foreign matter cutting tool, characterized in that the flexible transmission system comprises a head transmission mechanism, a flexible transmission mechanism and a tail driving mechanism, the head transmission mechanism is sequentially connected with the flexible transmission mechanism and the tail driving mechanism. The flexible transmission system of the steam generator secondary side metal foreign matter cutting tool transmits the movement of a motor arranged outside a steam generator to an electrode sheet between steam generator pipes and drives the electrode sheet to make reciprocating feeding movement.

A metal foreign matter inspection device according to one embodiment of the present invention includes a housing portion into which air containing metal foreign matter flows; an electrode portion that comes into contact with metal foreign matter contained in the air flowing into the housing portion and acquires information about the metal foreign matter; and a fan portion that blows air in one direction toward the metal foreign matter located on the electrode portion, wherein the housing portion includes an air receiving portion that receives the air containing metal foreign matter and an air inlet portion located at the top of the housing portion, and the electrode portion is located at the bottom of the housing portion, and the fan portion is located on one side of the housing portion.

The present application belongs to the medical imaging technical field, especially to a kind of electromagnetic sparse imaging method of metal foreign matter in human body fusing background knowledge, the present application includes the following steps: construct the electromagnetic scattering model of human tissue without metal foreign matter: construct the electromagnetic scattering model of human tissue after embedding metal foreign matter: fuse background knowledge, establish difference scattering model to extract metal foreign matter response: define contrast source and construct inversion model based on joint sparse regularization: solve inversion model and reconstruct metal foreign matter image;The present application proposes a modeling method fusing background prior knowledge, the proposed method can utilize the prior knowledge of human tissue, which helps to improve the problem of ill-conditioned, in order to further overcome inverse ill-conditioned, use joint sparse regularization technique to constrain the solving process of electromagnetic inverse problem, further improve the positioning accuracy of metal foreign matter, improve imaging accuracy, propose a kind of joint sparse regularization method, which can enhance the accuracy of imaging.

This invention provides a rapid detection device for metal foreign objects in food, including a frame. Two conveyor side plates are fixedly and mirror-symmetrically mounted on the top of the frame. A conveyor diversion mechanism is fixedly mounted in the middle section of the two conveyor side plates. Conveyor belts are mounted on conveyor rollers rotatably mounted at both ends of the two conveyor side plates. Either end of the conveyor roller rotates through the conveyor side plate and is fixed to the output end of a servo motor fixedly mounted outside the conveyor side plate. A channel frame, a receiving coil, and a mounting plate are fixedly mounted on the front section of the two conveyor side plates. A transmitting coil is fixedly mounted on the two mounting plates. This invention, through the conveyor diversion mechanism, can guide food containing foreign objects to a specific separated channel without stopping the machine during detection, achieving automated diversion. The transmitting and receiving coils form a vertical magnetic field, which, together with the servo motor, stabilizes the speed and improves the detection accuracy. The diversion seat and diversion arm are rationally arranged, ensuring precise diversion and improving the degree of automation.

The utility model provides a metal separation device for cement production, and relates to the technical field of metal separation, the metal separation device comprises a belt conveyor, a metal detector, a first blanking pipeline and a second blanking pipeline, the metal detector is arranged above the belt conveyor, the first blanking pipeline is arranged at the discharge end of the belt conveyor, and the second blanking pipeline is arranged at the discharge end of the belt conveyor. The second blanking pipeline is arranged at the bottom of the first blanking pipeline in a communicating mode, a rotatable turning plate is arranged between the first blanking pipeline and the second blanking pipeline, and the turning plate can guide materials to the first blanking pipeline or the second blanking pipeline. A separating assembly used for separating out magnetic metal is arranged in the second discharging pipeline. Through the metal detector and the turning plate, the material flowing direction can be changed when it is detected that metal is mixed in the material, so that the metal is separated out, automatic detection and efficient separation of the metal foreign matter in the material are achieved, the metal foreign matter is prevented from abrading follow-up equipment, and the equipment failure rate is reduced.

The invention provides a waste collecting device for metal material manufacturing, which comprises a collecting assembly, the collecting assembly comprises a box body, a screening assembly is arranged in the box body, the screening assembly is composed of a roller, and a screening mechanism is arranged in the box body on one side of the roller; a separation assembly is fixedly mounted in the box body and comprises a partition plate, a first scraping structure and a second scraping structure; a treatment assembly is fixedly mounted at the bottom of the box body and comprises a tank body, a flow guide plate and a flow guide groove. Separation of metal and non-metal waste materials is achieved through rotation of the magnetic roller, separation and filtration of non-metal foreign matter and fine impurities are achieved through the screening mechanism, stripping of the metal waste materials is achieved through the separation assembly, and collection and storage of cutting fluid are achieved through the arrangement of the treatment assembly; large impurities are centrifugally separated to ensure recycling of the cutting fluid, collection of different types of waste and chippings is achieved through multi-classification collection, and the use performance of the waste collecting device is effectively improved.

The application belongs to the technical field of household appliances, and particularly relates to a washing machine control method and device, electronic equipment, a washing machine and a storage medium. The application aims to solve the problem that the existing washing machine needs to manually remove the foreign matter after detecting the metal foreign matter, which is inconvenient to use, and when the metal foreign matter is not detected, the clothes and the washing inner barrel are still damaged. The method comprises the following steps: acquiring the sound frequency of the washing machine barrel in the washing process; judging whether the sound frequency meets the preset requirement; if the preset requirement is met, it is determined that there is metal foreign matter in the barrel, and the water flow intensity in the barrel of the washing machine is reduced and the water level in the barrel of the washing machine is raised. In this way, after it is determined that there is foreign matter, the foreign matter does not need to be immediately removed manually, but the water flow intensity is reduced and the water level is raised, so that the clothes are submerged in water, the frictional resistance is reduced, and the damage to the clothes and the washing inner barrel is reduced.

The utility model relates to a metal foreign matter detection system. The metal foreign matter detection system comprises an excitation module, a sensing module and a detection module, wherein the excitation module comprises an excitation coil and a magnetic core, the excitation coil is wound on the magnetic core, and the excitation module is used for providing an alternating magnetic field; the sensing module comprises a differential coil and a movable iron core, the differential coil is wound on the magnetic core, the iron core is arranged in a balance area of the alternating magnetic field, and the differential coil is used for inducing the alternating magnetic field and generating induced electromotive force; the detection module is connected with the sensing module and used for detecting the induced electromotive force signal output by the sensing module, and when the detection module detects that the variation amplitude of the induced electromotive force signal exceeds a preset threshold value, it is judged that the metal foreign matter exists on the surface of the detected object. The problems of material detection limitation, low small particle detection rate and false detection existing in metal foreign matter detection are solved.

The invention provides a metal foreign matter detection method based on a flexible temperature sensor, and the method detects the temperature rise condition of a metal foreign matter in an alternating magnetic field through the flexible temperature sensor, thereby recognizing the metal foreign matter, and guaranteeing the effective and safe charging. The method comprises the steps that a plurality of flexible temperature sensor arrays are arranged on a flexible circuit board body, then the flexible circuit board body is arranged in an upper or lower area of a transmitting end or a receiving end of the wireless charging equipment, and the temperature of each flexible temperature sensor is monitored in real time; obtaining a temperature change curve and a temperature value of a corresponding area of each wireless charging device; comparing the temperature curve change slope with the set maximum slope to judge whether the metal foreign matter exists in the corresponding wireless charging equipment area, and when the temperature curve change slope is greater than the set maximum slope, judging that the metal foreign matter exists in the corresponding position; and when the temperature value corresponding to the position is greater than the maximum safe charging temperature, the charging is stopped.

A strong / weak-field-based foreign object detection method for a metal detector, the method comprising the following steps: acquiring a weak-field detection signal and a strong-field detection signal of a product to be subjected to detection (S1); on the basis of the weak-field detection signal, the strong-field detection signal, and a qualified product coefficient and a metallic foreign object coefficient that are measured in advance, calculating a metallic foreign object signal value, wherein the qualified product coefficient is different from the metallic foreign object coefficient (S2); and determining whether the metallic foreign object signal value is greater than a preset threshold value, and if the metallic foreign object signal value is greater than the preset threshold value, determining that a metallic foreign object is detected, otherwise, determining that no metallic foreign object is detected (S3). Therefore, when a small metallic foreign object cannot be detected by means of a threshold-value-based determination method, the detection precision of a metal detector is improved. The present application further relates to a strong / weak-field-based foreign object detection apparatus for a metal detector, and a storage medium.