Optical Sorting for PET Bottle Recycling

Automatic sorting system for recycling bottles and cans that can accurately separate and sort different types of bottles and cans based on material and color. The system uses a series of sorting devices like crushers, separators, and photoelectric sensors to automatically sort the recyclables into large categories and then further separate and sort the items within each category based on their properties. This allows effective sorting of bottles and cans made of different materials and colors.

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Sorting equipment for recycling waste beverage bottles that improves accuracy and efficiency compared to existing systems. The sorting machine has a conveyor belt with a separator at the upper end. A sorting box above the belt feed point contains a rotating disc with bristles and a spray nozzle. The disc cleans bottles as they enter, reducing dust on the sensors. The bristles also brush the bottles, improving color identification accuracy. A compression ring squeezes bottles to reduce size for better storage capacity.

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Recycling plastic bottle sorting device that can sort three products using a circular processing loop to reduce device size and cost compared to sequential sorting. The device has a conveyor belt with sorting chambers, visual identification, and a return fan. Bottles fall on the conveyor, are sorted, then misclassified bottles are returned to the sorting chambers. This circular loop allows secondary sorting of misclassified bottles without needing additional equipment.

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A sorting machine for automated sorting of recyclable materials like plastic bottles. The machine has a conveyor system, image processing, and a material removal device to accurately sort and remove labels from bottles. The image processing uses a camera and lighting to capture images of the conveyed materials, identify labels, and generate rejection signals. An air blast device blows on the identified materials to dislodge them and change their trajectory. This allows separating bottles with labels from unlabeled ones. The machine also has vibration, lifting, and feeding components to prepare the materials for sorting.

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Intelligent sorting device for waste plastic bottles that uses image recognition to accurately sort and separate plastic bottles of different materials without relying on manual labor. The device has a mechanical transmission module to move the bottles, an image recognition module with cameras and spectrometers to capture images and spectra, and a control module to process the data and drive actuators for sorting. It uses multispectral imaging to identify the plastic material based on absorption peaks in near-infrared light. This allows automated sorting of different types of plastic bottles without relying on manual labor.

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Intelligent recycled plastic sorting robot system that uses spectral imaging and delta robots to accurately and quickly sort various types of plastic waste. The system has a conveyor, a SWIR camera to capture spectral images of the plastics, a sorting unit to classify the plastics based on the spectral data, and a delta robot with a vacuum gripper to sort and move the plastics. The delta robot has a base, drive motors, shoulder brackets, shoulder frames, shoulder end brackets, load arms, an elastic unit, and a vacuum gripper. The gripper has an arm bracket, a buffer, a vacuum generating nozzle, and an elastic cup. The elastic cup allows suction through the bottom port and compresses to release suction. This enables precise vacuum gripping and sorting of different plastic types using spectral imaging.

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Automatic sorting and separation system for recycled PET that uses AI to select and separate PET of specific colors while removing other waste. The system uses cameras and sensors on a conveyor to analyze the color and material of PET waste as it moves. An AI model identifies PET and its color based on images and spectra. Location data is used to focus the sensors on PET of a desired color. Robots then pick up PET in that area, leaving behind non-PET and PET of other colors.

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Sorting device for recycling PET plastic using artificial intelligence to selectively collect only PET of a designated color. The device uses image analysis and spectral sensing to identify and sort PET waste. It learns to recognize typical PET colors using a color algorithm. When waste is fed on a conveyor, the device acquires images, extracts colored regions, sets light irradiation areas for those colors, and uses a spectral sensor to confirm PET presence. It then uses geometry to convert conveyor coordinates to robot pickup locations for sorting. This enables automated sorting of specific-color PET from mixed waste streams.

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A sorting and recovering apparatus for recyclables like PET bottles that can sort, crush, wash, and dry recyclables while separating and discharging suspended matter and sediment generated during the process. It improves efficiency by simultaneously injecting washing water and pulverized recyclables, generating centrifugal force to float impurities, and discharging them separately. It also improves antibacterial and deodorizing efficiency by mixing recyclables with antibacterial materials.

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AI-based PET bottle collection system that improves the sorting accuracy of PET bottles based on AI and separates and collects PET bottles made of different materials. The system includes a body frame, an inlet, and a transfer module.

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Automated sorting system for recycled PET that uses AI to select and separate only PET of a specific color. It uses vision and spectral sensors to analyze the waste, and a learning model to sort irregular plastics. The system photographs PET waste, learns to identify colors, extracts location info, irradiates light in that area, analyzes spectrum, and determines if PET. It then sets sorting coordinates for a robot to pick up non-PET.

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Sorting mixed plastic packaging waste into pure fractions for efficient recycling. The sorting process involves multiple steps including air classification to separate lower density films, followed by optical sorting to distinguish and separate different plastic types like PET trays, clear PET, colored PET, PP, PS, and MPO. This allows targeted recycling of specific plastic materials with purity requirements. The process can involve multiple passes through optical sorters to further refine sorting and remove impurities.

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Recycling waste sorting device that improves efficiency and quality by accurately identifying and removing recyclables using a multi-camera sensor, vertical adsorption control, and load balancing. The device has a conveyor, multi-camera sensor, and multiple robotic grippers. The sensor captures RGB and NIR images to detect recyclable type and color. It also captures depth to determine object height. The gripper has a bellows-shaped adsorber with negative pressure. The controller sequentially assigns objects to grippers based on proximity. It stops and reassigns if a gripper drops an object. This prevents overloading and minimizes movement. The depth sensor allows precise vertical adsorption control. By detecting color, thickness, and proximity, the sorting device can more accurately identify and remove recyclables.

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Automated system for sorting waste plastic bottles to improve purity of recycled plastic. The system involves crushing, density sorting, washing, dehydration, and further sorting to separate and recycle the crushed bottle fragments and labels. The washing uses steam and friction to physically remove stickers without chemicals. This allows recycling of the fragments and labels separately for higher purity.

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Automatic sorting device to separate PET bottles into colored and transparent bottles, and further sort transparent bottles into labeled and unlabeled. The device has multiple stages of conveyors, sorting units, and opening/closing parts to sort the bottles based on color and label presence. It uses cameras to detect bottle properties. A cutting unit removes bottle caps for recycling efficiency.

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An automated color sorting machine for recycling PET plastic bottles that uses a CCD camera, processing mechanism, drive mechanism, storage mechanism, and recovery mechanism to sort the chips by color. It improves efficiency and reduces manual input compared to traditional sorting methods. The chips are fed into the machine, imaged by the camera, processed, and sorted into separate color streams using the mechanisms. This allows automated separation and recovery of pure color PET flakes from mixed recycled material.

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Extensive sorting method and apparatus for efficiently separating and recovering different types of plastic packaging waste from mixed waste streams. The method involves using near-infrared (NIR) spectroscopy to analyze the mixed waste and identify the different plastic types. Then, physical separation is performed based on the NIR analysis to remove and sort the identified plastic types. This allows separating hard-to-sort plastics like black PP, black PE, and opaque PET bottles using NIR analysis. The sorted plastics can then be recycled separately. The apparatus has NIR sensing, sorting, and recycling equipment integrated.

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Method for manufacturing high quality recycled PET pellets using waste PET bottles. The method involves sorting only transparent PET bottles from mixed waste, pulverizing the bottles into flakes, wet grinding at low temperature, centrifuging to remove impurities, drying, crystallization, chip formation, and finally pelletizing with a hydrolysis inhibitor. This precise screening and purification process ensures pure transparent PET is used, preventing contaminants that degrade pellet quality.

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Recycling assembly for sorting and feeding plastic bottles in a more efficient and reliable way compared to traditional methods. The assembly has multiple stages with optimized components like feeding, sorting, and conveying to improve the sorting of plastic bottles. It uses two centrifugal discs to sort the bottles instead of one, increases capacity, and prevents stacking. A limited feeding device screens out oversized bottles. The conveyor belt has a barrier to control feed amount. Detection frames sort the detected bottles. This assembly provides better sorting and feeding of plastic bottles for recycling.

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Recycling method and system for producing food-grade plastic raw material from used PET bottles. The recycling process involves multiple steps of cleaning, crushing, washing, dehydration, and sorting to obtain high-quality recycled PET suitable for food contact applications. The steps include trommel screening, label removal, photoelectric sorting, high-temperature washing, pulverizing, flotation washing, secondary washing, dehydration, and wind separation. This multi-stage process removes impurities like labels, caps, and contaminants to meet food-grade standards.

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