2804 results about "Plastic bag" patented technology

Particulate matter, such as fog, snow, rain, steam, vehicle exhaust, debris (plastic bags), etc. may cause one or more sensor types to generate false positive solid surface detections. In particular, various depth measurements may be impeded by particulate matter. Identifying false positive return(s) may comprise clustering lidar points, determining differences in range indicated by two different lidar devices having lidar points in the cluster, determining first differences that are more negative than a negative difference threshold and second differences that are more positive than a positive difference threshold, determining a first portion of lidar data in the cluster associated with the first differences and the second differences is associated with particulate matter or debris, and controlling a vehicle based at least in part on suppressing the first portion of the lidar data or indicating that the first portion of the lidar data is associated with particulate matter or debris.

The invention relates to the technical field of plastic packaging bag tensile detection, and discloses a plastic packaging bag tensile detection device which comprises a processing platform, a storage cabinet is arranged in the processing platform, supporting legs are fixedly connected to the four corners of the bottom of the processing platform, and a tensile detection mechanism is arranged at the top of the processing platform; the four corners of a plastic bag are stably clamped through a screw rod, a movable clamping plate and a fixed clamping plate, cooperative movement of a motor sliding rail, a linear motor, a movable frame, a sliding rod and a first sliding block is matched, pulling force on the two sides is converted into pulling force in four directions through an inclined sliding groove and a second sliding block, and stretching resistance detection in the four directions is conducted on the plastic bag. According to the design, the limitation that only two-side stretching detection is adopted in the prior art is overcome, the tensile data of the plastic bag in different directions can be obtained, the tensile performance of the plastic bag can be comprehensively evaluated, a more accurate basis is provided for quality evaluation, it is ensured that the plastic bags with different purposes can bear the tensile force in the corresponding direction in actual use, and the detection precision is improved.

The utility model discloses a volume-adjustable garbage can suitable for garbage bags of various sizes, which relates to the technical field of garbage cans and comprises a can body, and the can body comprises a first shell and a second shell. The top ends and one side ends of the first shell and the second shell are all provided with openings. The side end of the opening of the first shell is inserted into an inner cavity of the second shell in a sliding mode from the opening of the side end of the second shell, so that the inner cavity of the first shell and the inner cavity of the second shell jointly form a volume-variable barrel cavity, and the opening of the top end of the first shell and the opening of the top end of the second shell jointly form a size-variable barrel opening. The lifting support plate is positioned in the barrel cavity; a plurality of positioning structures are arranged on the side wall of the first shell or the second shell at intervals in the height direction of the barrel body, and the positioning structures are detachably connected with the lifting supporting plate so that the lifting supporting plate can be positioned at different depths in the barrel cavity. The multifunctional shopping can can be matched with shopping plastic bags and garbage bags of various sizes, has the functions of being adjustable in volume, can opening and depth, and has the advantages of being simple in structure and low in manufacturing cost.

The invention relates to the field of plastic bags, and discloses a biodegradable plastic bag and a preparation method thereof, the biodegradable plastic bag comprises polylactic acid, poly (butylene adipate-co-terephthalate), a functional additive, modified starch, a lubricant and an antioxidant; the functional additive is prepared by grafting hydroxylated modified castor oil and isocyanated montmorillonite loaded titanium dioxide; the hydroxylation modified castor oil is prepared by modifying castor oil with chloroethyl isocyanate, then reacting with N-allylimidazole, and then reacting with 6-mercaptohexyl-1-alcohol; the isocyanated montmorillonite loaded titanium dioxide is prepared by reacting montmorillonite loaded titanium dioxide obtained by a sol-gel method with isophorone diisocyanate; the modified starch is prepared by reacting octadecanoyl chloride and acryloyl chloride with starch, then carrying out graft copolymerization with ethyl acrylate and further introducing glycidyl methacrylate, so that the plastic bag is endowed with excellent mechanical properties, biodegradability and antibacterial property.

A groom pouch device may be used to groom a dog and to store and carry items during a dog walk. The groom pouch device may also store and dispense plastic bags. The groom pouch device may have a case with a plurality of attached bristles, an interior area having a pocket configured to hold a plurality of plastic bags, a bottom surface, a zipper configured to open and close the interior area and a port through the case configured to allow a plastic bag in the plurality of bags in the interior area to be manually pulled out of the interior area of the pouch. The groom pouch device may also have an elastic band that may be attached across the bottom surface of the pouch and configured to hold a hand of a user using the groom pouch device is used to groom a dog.

The utility model discloses a box filling machine for barreled water bottle caps. The box filling machine comprises a machine frame, a material placing assembly, a carton conveyor and a material grabbing assembly. The material grabbing assembly is used for grabbing the bottle caps located on the material placing assembly and transferring the bottle caps into a carton located on the carton conveyor. The material placing assembly comprises a material disc arranged on the machine frame, a plurality of material placing grooves are formed in the material disc in a left-right arrayed mode, the front sides of the material placing grooves are open, a bottle cap conveying channel is arranged on the front side of the material disc, the tail end of the bottle cap conveying channel is closed, and the tail end of the bottle cap conveying channel is open. The front side of the bottle cap conveying channel is provided with a material pushing assembly used for pushing the bottle caps in the bottle cap conveying channel backwards into the material placing groove. A plastic bag arranging assembly is arranged above the carton conveyor. The material grabbing assembly reciprocates between the plastic bag arranging assembly and the material disc.

The invention provides a cutting device for plastic packaging bag processing, and relates to the field of plastic bag cutting equipment. A cutting mechanism is arranged on the front side of the upper end face of the body, and a second rectangular groove is formed in the front side of the upper end face of the body. A conveying mechanism is installed in the second rectangular groove, a plastic packaging bag roll material is conveyed on the conveying mechanism, and a heat sealing mechanism is installed on the rear side of the upper end face of the main body. According to the upper pressing mechanism of the cutting device, through cooperation of the circular rotating disc, the annular limiting piece, the rectangular through opening, the first circular plate, the second circular plate, a rectangular locking plate block and a guide sliding rod, the phenomenon that a driving nut is loosened can be avoided, and the reliability of the upper pressing mechanism of the cutting device during pressing is improved; the problems that in the plastic packaging bag roll material conveying process of a traditional heat-sealing and cold-cutting type cutting device, a threaded rod in a pressing mechanism is prone to loosening due to stress, and then the reliability of the pressing mechanism on the cutting device during pressing is reduced are solved.

The utility model relates to the technical field of beverage cup processing, and provides a printing cup automatic packaging and marking device which comprises a controller, a rack, a first conveying mechanism, a second conveying mechanism, a limiting mechanism, a pushing mechanism, a counting sensor, a sealing, cutting and thermal shrinkage all-in-one machine, an air blowing mechanism and a packaging bag printing machine. The limiting mechanism is arranged on the machine frame in a vertically-lifting mode and located between an outlet of the first conveying mechanism and an inlet of the second conveying mechanism, the conveying of the plastic cups is separated according to the packaging number of the plastic cups, and the blowing mechanism is arranged at the front end of a plastic bag packaging groove of the sealing, cutting and thermal shrinkage all-in-one machine and blows air into a plastic bag space for packaging the plastic cups. The first conveying mechanism, the second conveying mechanism, the limiting mechanism, the pushing mechanism, the sealing, cutting and thermal shrinkage all-in-one machine, the blowing mechanism and the packaging bag printing machine are all connected with and controlled by a controller. The small-package plastic cup packaging machine solves the problems that existing small-package plastic cups are slow in packaging speed and low in efficiency.

The invention relates to the technical field of sand and gravel conveying, and particularly discloses a sand and gravel conveying device which comprises moving equipment, a first conveying belt, a second conveying belt, an auger assembly, a material stirring mechanism and a driving mechanism, the material stirring mechanism comprises a sliding plate, an overturning piece and a plurality of rotating rollers, the sliding plate is arranged at the end of the first conveying belt in a sliding mode, and the overturning piece is rotationally arranged on the sliding plate; the multiple rotating rollers are arranged on the overturning piece in the width direction of the first conveying belt, each rotating roller movably penetrates through the overturning piece, so that the rotating rollers can rotate around the axes of the rotating rollers and can move relative to the overturning piece in the axial direction of the rotating rollers, multiple elastic blocks are arranged on the outer sides of the rotating rollers, and each elastic block is in sliding fit with the corresponding rotating roller in the radial direction of the corresponding rotating roller. The driving mechanism comprises a rotating assembly, a telescopic assembly and an overturning assembly; in the material taking process, caked gravel can be crushed, impurities such as plastic bags doped in the gravel are separated out, and the quality of gravel materials is ensured.

The invention relates to the technical field of plastic product processing, and discloses a high-toughness plastic bag processing technology which comprises the following steps: firstly, primarily sorting recycled main raw materials, recording sources, grade classification and processing states, configuring a centralized feeding system and an intelligent proportioning program, and carrying out intelligent proportioning on the main raw materials; the mixed raw materials are injected into a five-layer co-extrusion die head or an annular die head structure, then an extrusion film body is controlled through a control system to conduct film blowing treatment on an extruded film to form film bubbles, then film blowing is conducted, the film bubbles are cooled through a 360-degree cooling air ring and an internal air core, the film obtained after film blowing is completed is pulled to a winding section through a winding system, and then the film is obtained. Before rolling, mechanical performance indexes are detected through an online monitoring instrument, and a finished film roll enters a bag making / slicing section according to order requirements. Through fine treatment and multi-layer co-extrusion process design of recycled plastics, high-proportion recycled materials are effectively applied to production of plastic bags, and the effect of remarkably improving the utilization rate of the recycled materials is achieved on the premise that the performance of finished products is not reduced.

The invention relates to the technical field of plastic packaging bag production feeding, and discloses a feeding device for plastic packaging bag production, which comprises a working box, and further comprises two mounting plates which are respectively connected to the top of an operation table, and the operation table is fixedly connected between the two mounting plates; the adsorption mechanism is arranged between the two mounting plates and used for adsorbing the plastic packaging bags placed on the operation table; the separating mechanism is arranged on the front mounting plate and used for separating the plastic packaging bags stacked on the operation table; and the conveying mechanism is arranged between the two mounting plates, located on the right side of the adsorption mechanism and used for conveying the separated plastic packaging bags. According to the plastic packaging bag adsorption device, through the arranged adsorption mechanism, a plurality of suction cups can be used for moving, an external air source is used for adsorbing plastic packaging bags, meanwhile, a telescopic rod is used for moving in an adsorption rod, and a first spring is used for supporting so as to adapt to adsorption of stacked plastic packaging bags with different thicknesses.

The utility model discloses a degradable plastic bag stretch resistance detection device which is characterized in that the outer surface of a detection table is fixedly connected with a motor I, a screw rod I is connected with a fixed block I through a screw rod nut, the surface of the fixed block I is fixedly connected with a displacement sensor, and the front surface of the fixed block I is rotationally connected with a gear II through a shaft rod; the surface of the second gear is meshed with a first gear, the front surface of the second gear is fixedly connected with a first clamp, the surface of the second screw rod is rotatably connected with a second clamp, the surface of the second clamp is fixedly connected with a pressure sensor, the interior of the fixing plate is rotatably connected with a rotating rod, one end of the rotating rod is fixedly connected with a gear, and the surface of the gear is meshed with a rack. The bottom end of the rack is fixedly connected with an electric push-pull rod, so that an actual use environment can be simulated, the comparability of test results can be improved, more accurate test data can be provided, and the tensile property difference of the degradable plastic bag in different directions can be known.

The utility model relates to the technical field of plastic bags, in particular to a plastic bag production waste recovery device which comprises a waste crushing bin body, a waste collecting bin arranged on the waste crushing bin body, a partition plate, a waste pressing plate and a driving mechanism used for driving the waste pressing plate to move. The driving mechanism comprises two electric push rods fixedly installed on the top face of the waste collecting bin, sliding blocks fixedly connected to the front faces and the back faces of the partition plate and the waste pressing plate, and a sealing plate placed on the right side of the waste collecting bin. According to the plastic bag production waste recovery device, a waste pressing plate is driven to move through an electric push rod, then waste is extruded, the collection efficiency is improved, under the action of a containing groove, a worker can conveniently take the waste, the recovery efficiency is improved, meanwhile, through attachment between a fixing plate and a sealing plate, the sealing plate is fixed, and the waste recovery efficiency is improved. And the sealing plate is more convenient and practical.

The invention discloses a plastic bag strapping machine with a lengthened rope head and a method for lengthening the rope head, the plastic bag strapping machine comprises a beak knotter and is further provided with a bracket, a machine head of the beak knotter is connected to the bracket, one side of the machine head or the bracket is further provided with an external rope pusher, the external rope pusher comprises a pushing claw and a pushing mechanism, and the pushing claw is connected with the bracket. The pushing claw is connected to the pushing mechanism, the pushing mechanism is a cam assembly or an external driving part and is arranged on the side face of the machine head or the bracket, the length of the rope head is increased by increasing the relative distance between the pressing buckle and the beak and between the rope cutter and the beak, and the external rope pusher is adopted to adapt to the stroke of the rope head. The rope pusher is simple in structure, can be produced without changing the size of a machine head of the beak knotter and additionally developing a machine head mold, avoids the phenomenon that an existing rope pusher is prone to deformation and clamping, and is convenient to maintain and lubricate.

The invention discloses a plastic bag opening device and a bag opening and bagging method. The plastic bag opening device comprises two bag opening assemblies and a bag width adjusting assembly, wherein the two bag opening assemblies are oppositely arranged and used for opening a fabric plastic bag and adjusting the opening height and width, and the bag width adjusting assembly is used for adjusting the distance between the two bag opening assemblies according to the width of the fabric plastic bag. The bag width adjusting assembly is used for adjusting the position of the bag opening assembly according to the width of the fabric plastic bag, the bag blowing assembly is used for blowing open the fabric plastic bag, and the tensioning air cylinder is used for controlling the bag opening assembly to enable a bag opening to be kept in a tensioning state; the bag width adjusting assembly is used for adjusting the position of the bag opening assembly according to the width of the fabric plastic bag; the bag blowing assembly is used for pressing a sealing part of the fabric plastic bag and blowing air into the fabric plastic bag to open the bag opening; the bag opening assembly stretches into a fabric plastic bag and opens a bag opening, the bag opening assembly adjusts the bag opening height according to the fabric height, meanwhile, the tensioning air cylinder controls the bag opening assembly to adjust the bag opening width so that the bag opening can be kept in a tensioned state, and the bag opening can be tensioned through cooperation of the bag opening assembly, the bag width adjusting assembly and the tensioning air cylinder. Different bag opening modes can be selected according to the size proportion of the fabric plastic bag and the fabric.

The utility model discloses a pontoon type acoustic Doppler flow velocity profiler, which relates to the field of acoustic Doppler flow velocity profilers, and comprises a pontoon main body and an acoustic Doppler flow velocity profiler main body, and two electric push rods are arranged on the acoustic Doppler flow velocity profiler main body. Movable rings are installed at the output ends of the two electric push rods through piston rods, a plurality of connecting blocks are arranged on the outer wall of the acoustic Doppler flow velocity profiler body, stop levers are connected to the connecting blocks through rotating shafts, and push plates are connected between the stop levers and the movable rings through connecting shafts. According to the acoustic Doppler flow velocity profiler, the blocking rod and the protruding block are arranged, the blocking rod can protect the acoustic Doppler flow velocity profiler body and prevent objects from impacting the acoustic Doppler flow velocity profiler body, the protruding block is arranged so that the plastic bag can be conveniently hung, and the plastic bag in water is prevented from being wrapped on the outer wall of the acoustic Doppler flow velocity profiler body; therefore, the acoustic Doppler flow velocity profiler main body is prevented from detecting the water body.

The invention relates to the technical field of intelligent monitoring, in particular to an intelligent monitoring method and system for a plastic bag production process, and the method comprises the following steps: collecting original equipment operation data and production instruction information based on a production line speed sensor and operation state monitoring, generating a preliminary equipment data stream, and storing the preliminary equipment data stream in a database; and applying an energy consumption algorithm to the preliminary equipment data stream, calculating energy consumption of a production unit, and integrating external energy price data to generate an optimized energy use strategy. According to the invention, by adjusting the energy use strategy and optimizing the production process, the production efficiency and resource utilization are obviously improved, the dynamic adjustment of the production speed and the machine load is realized, the energy market change is matched, the energy distribution is more accurate and efficient, and the bottleneck and equipment abnormality in the production process are identified and solved by continuous monitoring and real-time optimization, so that the production efficiency is improved. Equipment operation efficiency and production line performance are greatly improved, and long-term efficiency improvement and cost saving are achieved.

The invention discloses a plastic packaging bag recycling and processing device, which relates to the field of resource recycling technology. The device comprises a main body cylinder: comprising a mounting cylinder body arranged on the main body cylinder, a fixing platform is fixedly installed on the surface of the mounting cylinder body, a feeding port is opened on the surface of the mounting cylinder body, and a conical material outlet is slidably connected to the inner wall of the mounting cylinder body; a scraping mechanism comprises eight V-shaped scrapers installed inside the mounting cylinder body, the surface of each V-shaped scraper is rotatably connected to a sliding rod, the surface of the sliding rod is slidably connected to a sleeve rod, and through the action of the sliding rod and a tension spring, the V-shaped scraper always changes its posture synchronously with the cutting edge of a cutting blade during movement, thereby effectively scraping off the plastic bag adhered to the cutting edge of the cutting blade, and in combination with the driving action of the driving mechanism, the plastic bag pushed off the cutting edge of the cutting blade is thrown out under the action of centrifugal force, thereby realizing the function of quickly cleaning the cutting edge of the cutting blade.

The invention discloses a municipal rainwater and sewage diversion device and method, and relates to the technical field of rainwater and sewage diversion, the municipal rainwater and sewage diversion device comprises a diversion box, an equipment box is fixedly mounted on the surface of the diversion box, a water inlet pipe penetrates through the top of the diversion box, and a sewage pipe fixedly penetrates through the surface of the diversion box; according to the municipal rainwater and sewage diversion device, a rotating shaft II rotates to drive a rotating shaft III to rotate through a rotating disc, at the moment, the rotating shaft II and the rotating shaft III rotate to drive a winch to rotate, and the water purification pipe fixedly penetrates through the bottom of the diversion box, a filter plate is fixedly installed on the inner wall of the diversion box, and a flow guide plate is fixedly installed on the inner wall of the diversion box. At the moment, the winch rotates to shred the garbage in the water, so that the garbage in the sewage is guided and shredded, solid wastes such as plastic bags, paper, cloth strips and leaves are effectively crushed into smaller particles, the blockage or abrasion of the solid wastes to the sewage treatment equipment is reduced, and the treatment efficiency of the equipment is improved.

The invention relates to the technical field of plastic bags, in particular to an antibacterial degradable plastic bag and a preparation method thereof. The antibacterial degradable plastic bag is prepared from the following raw materials in parts by weight: 60-80 parts of polyhydroxyalkanoate, 30-40 parts of filler, 2-4 parts of an antioxidant and 0.6-1 part of an active agent. In the preparation process of the antibacterial degradable plastic bag, in a filler system, vesuvianite powder and eggshell powder are used as inorganic reinforcing phases, sericin and mulberry leaf powder are used as bioactive phases, flax and cotton provide a natural fiber structure, and lignin and konjac glucomannan are used as bio-based bonding materials; and the eggshell powder is compact in crystal structure after being subjected to high-temperature calcination treatment, and can be used as a stress transfer medium in a material system, so that the stress concentration when the plastic bag is stressed is reduced, and the strength performance of the plastic bag is improved.

The angle-variable feeding clamping jaw mechanism comprises a supporting rod, a universal joint and a feeding clamping jaw, one end of the supporting rod is connected with a servo motor, the other end of the supporting rod is connected with the feeding clamping jaw, the universal joint is installed between the supporting rod and the feeding clamping jaw, and the feeding clamping jaw is rotationally connected with the supporting rod through the universal joint. A limiting halfpace is further arranged at the joint of the feeding clamping jaw and the supporting rod and fixed to the supporting rod through a bolt. The feeding clamping jaw comprises a connecting part, a supporting part and a clamping part, the connecting part is connected with one end of the supporting part, the clamping part is connected with the other end of the supporting part, the connecting part is located in the limiting halfpace, and the connecting part is rotationally connected with the universal joint. The universal joint is additionally arranged at the connecting position of the clamping jaw air cylinder and the supporting rod, so that the angle of the feeding clamping jaw can be changed when the feeding clamping jaw is subjected to resistance during feeding, packaging materials can be effectively prevented from being burst during bagging of plastic bags and the like, material and labor waste caused by breakage of the packaging bags is reduced, and the qualified rate of equipment products is increased.

It is an object of the present application to prevent a waste from being attached to the upper blade or the lower blade of a crosscut device reliably.A waste removing device 5 for a bag making apparatus is attached to the bag making apparatus which makes a plastic bag from plastic films 10, 11. The apparatus comprises a crosscut device 31 configured to crosscut the plastic films 10, 11. The crosscut device 31 comprises upper and lower blades 310, 311. The waste removing device 5 comprises a scraper portion 50 configured to sweep a waste W from the upper or lower blade 310, 311. The waste W is made from the plastic films 10, 11 with the crosscut device 31.

The utility model provides a granular activated carbon desorption treatment device, which comprises an electric heating box, a connecting plate, a flexible rubber bag and a stirring mechanism, the stirring mechanism comprises a rotating motor, a rotating shaft, a stirring blade, a rotating rod, a raised head and a synchronizing mechanism, after activated carbon is placed in the electric heating box, the activated carbon can be desorbed in a high-temperature environment, and the desorption effect is good. In the high-temperature desorption process, the rotating motor can drive the stirring blades to rotate through the rotating shaft, the stirring blades can change the position of the activated carbon in the horizontal direction, and meanwhile, the rotating rod can synchronously move with the rotating shaft through the synchronizing mechanism; the raised heads arranged on the top surface can jack up different positions of the flexible rubber pocket in the rotating process, so that the activated carbon can be changed in position in the vertical direction, the activated carbon at different positions can be uniformly heated, and the desorption effect is improved.

Particulate matter, such as fog, snow, rain, steam, vehicle exhaust, debris (plastic bags), etc. may cause one or more sensor types to generate false positive solid surface detections. In particular, various depth measurements may be impeded by particulate matter. Identifying false positive return(s) may comprise clustering lidar points, determining differences in range indicated by two different lidar devices having lidar points in the cluster, determining first differences that are more negative than a negative difference threshold and second differences that are more positive than a positive difference threshold, determining a first portion of lidar data in the cluster associated with the first differences and the second differences is associated with particulate matter or debris, and controlling a vehicle based at least in part on suppressing the first portion of the lidar data or indicating that the first portion of the lidar data is associated with particulate matter or debris.

The invention relates to the technical field of plastic films, in particular to a preparation method of an environment-friendly plastic bag, which comprises the following steps: S1, mixing polyethyleneimine, ammonium polyphosphate and a first solvent, then carrying out primary reaction, cooling to room temperature, filtering, washing and drying to obtain a solid-phase substance; s2, tannic acid and a second solvent are mixed, tris (hydroxymethyl) aminomethane is added, the pH is adjusted to 7-9, then hydrogen peroxide is added, after a secondary reaction, the solid-phase matter is added for a third reaction, filtering, washing and drying are conducted, and a heat-resistant enhancer is obtained; s3, the modified polylactic acid, the heat-resistant enhancer and the auxiliaries are put into a high-speed mixer to be mixed to be uniform, then the mixture is added into a double-screw extruder to be granulated, then film blowing is conducted through an air blower, and the environment-friendly plastic bag is obtained. The environment-friendly plastic bag provided by the invention has excellent mechanical properties, thermal stability and ultraviolet resistance.

The invention discloses an environment-friendly degradable plastic food packaging bag and a preparation method thereof.The food packaging bag is prepared from, by weight, 90-100 parts of PBAT, 10-20 parts of PLA, 15-20 parts of antibacterial modified nano calcium carbonate, 1-2 parts of polyethylene wax and 1-2 parts of titanium dioxide, a large proportion of PBAT and a small proportion of PLA are used as base materials, and the base materials are prepared into the environment-friendly degradable plastic food packaging bag. When the component ratio difference is large, the intermolecular acting force of PBAT and PLA is stronger, the miscibility is better, the two base materials are mixed and dissolved to prepare base particles, and then the base particles are mixed and melted with other components, so that better compatibility can be achieved, and the mechanical property of the prepared degradable plastic food packaging bag is more excellent; when the antibacterial modified nano calcium carbonate is melted with other components of the plastic food packaging bag, the antibacterial modified nano calcium carbonate has better compatibility and better material fluidity during melting, meanwhile, silver of the prepared plastic bag is not easy to separate out, and the antibacterial performance of the plastic food packaging bag can be kept for a long time.

A wearable finger-moistening device to help open plastic produce bags in the supermarket. At least one opening in a waterproof front panel or a sponge expansion barrier exposes a wettable antimicrobial sponge. The sponge can retain moisture for 4-8 hours. The device is used by touching one's fingers to the moistened sponge, and then using one's moistened fingers to easily open a plastic produce bag. A clasp allows the user to attach the device using only one hand onto a belt loop, a zipper pull, or a purse strap, for example. The at least one opening in the front panel or in a sponge expansion barrier can be shaped to enhance the appearance of the device.

The invention discloses an intelligent optimization method for forming parameters of a plastic bag, which relates to the technical field of processing optimization and comprises the following steps of: fitting a response curve of each feature in a material-process feature matrix to a forming defect, and calculating unit structure performance indexes under different process configurations based on the response curve so as to evaluate the forming quality of the plastic bag. The method comprises the following steps: counting unit structure forming parameters and performance indexes of each region according to design partitions of a plastic bag, constructing an overall performance mapping model through region weighting, and judging whether the forming parameters of the plastic bag need to be optimized or not according to the performance indexes of each region and the overall performance mapping model. And a corresponding plastic bag forming parameter optimization strategy is generated according to a judgment result. According to the optimization method, an overall performance mapping model is established through performance index statistics and weighting processing of regional partitions, so that a forming optimization strategy can consider local quality control and overall performance collaboration, and the comprehensiveness and reliability of an optimization decision are enhanced.

The invention discloses a biodegradable polyester composition and a preparation method and application thereof, and belongs to the technical field of high polymer materials, the biodegradable polyester composition comprises the following components by weight: 50-92 parts of biodegradable polyester, 9-50 parts of a filler, 0.08-1.1 parts of an auxiliary agent, and 0.08-1.1 parts of a surfactant. According to the biodegradable polyester composition and the preparation method thereof, biodegradable polyester is taken as a matrix, under the combined action of the filler, the slipping agent, the antistatic agent and the surfactant, the anti-impact adhesion property, the ink printing property and the adhesion property of the composition are remarkably improved, and the biodegradable polyester composition is very suitable for preparing degradable plastic products; due to the excellent impact adhesion resistance, ink printing property and adhesion, the printing effect of the ink on the surface of a product prepared from the ink can be effectively improved, the spreadability and adhesion of the ink on the surface of the product can be improved, and the ink is particularly suitable for preparing degradable plastic films and degradable plastic bags.

The invention discloses a plastic bag quality detection system based on image recognition, and relates to the technical field of quality detection, and the system comprises an image acquisition module which is used for obtaining an original image sequence on a production line; the strategy execution module is used for outputting a final quality detection result according to the dynamic strategy coefficient; the result archiving and feedback module is used for aggregating the final quality detection result and outputting an early warning instruction for prompting an operator to intervene; the core state sensing module is used for solving a system risk index based on the historical structured quality data; and the dynamic decision and adjustment module is used for inputting the system risk index into a preset nonlinear adjustment function so as to generate a dynamic strategy coefficient. According to the method, the detection model is adaptively adjusted through the dynamic strategy coefficient, the risk index is fused to perceive the quality trend, a closed-loop control architecture is constructed, collaborative optimization of the speed and precision is achieved, system oscillation is avoided, the quality risk is warned in advance, and the production efficiency and stability are improved.