115 results about "Cast films" patented technology

The invention discloses an automatic cast film defect detection method and system based on an improved YOLOv8 model and a multi-threshold mask segmentation algorithm, and the method comprises the steps: obtaining a defect picture for defect detection through the collection and preprocessing of surface image data of a cast film; a defect detection model based on an improved YOLOv8 model is constructed, the detection precision and stability of the model on a tiny target are improved through an NWD loss function, defect pictures are input into the detection model, and center point coordinates of each prediction defect target frame are output after model detection, so that accurate position information of the defect is provided; according to the predicted position of the defect target frame, extracting the target frame and segmenting the area by adopting a multi-threshold mask segmentation algorithm to obtain a fine defect area and features; and carrying out statistical analysis on the extracted defect features, and generating a batch detection report. According to the invention, automatic detection and classification of the surface defects of the casting film can be realized, and high-precision real-time detection capability is realized.

The utility model discloses a cooling mechanism for cast film forming, which relates to the technical field of cast film cooling and comprises a mounting frame, a plurality of rotating shafts are rotatably mounted on the mounting frame, outer rollers are sleeved on the rotating shafts, roller covers are symmetrically arranged at two ends of each outer roller, water-proof cabins are arranged on opposite surfaces of the roller covers, through holes are formed in the rotating shafts, and the outer rollers are sleeved on the rotating shafts. The rotating shaft is provided with a rectangular through hole in the waterproof cabin section; according to the utility model, the mounting frame is matched with the rotating shaft, so that the cooling mechanism can be stably built and flexibly rotated, and the structural stability and the running smoothness are improved; the outer roller is matched with the roller cover and the waterproof cabin, so that a sealed cooling space is conveniently constructed, the sealing performance is improved, and the leakage of cooling liquid is prevented; the rotating shaft through hole is matched with the rectangular through opening and the spiral heat dissipation pipe, so that the cooling liquid uniformly circulates to absorb heat, the cooling uniformity is improved, and the cast film is uniformly cooled; finally, the problem that a traditional cooling mechanism is uneven in cooling is solved, and the cooling effect and production efficiency are improved.

1. The name of the design product: graphical user interface of automatic control system of electronic equipment (casting machine 10). 2. The use of the design product: an electronic device. 3. The design points of the design product: in the graphical user interface. 4. The picture or photo that best indicates the design points: interface change state diagram. 5. The graphical user interface is protected by the design, and the rear view, left view, right view, top view and bottom view are omitted. 6. The use of the graphical user interface: for displaying the working state of the casting machine. 7. The human-computer interaction mode of the graphical user interface: clicking or touching the icon or function button on the screen. 8. The change state of the graphical user interface: after starting, enter the main view interface, click or touch the seventh icon on the left side of the main view interface, enter the interface change state diagram.

The utility model discloses a cast film winding device, relates to the technical field of automatic winding, and aims to solve the problems that the existing cast film winding device in the background technology needs to be laid at the front end, and the efficiency cannot be stably guaranteed. Rotating shafts are arranged at the upper ends of the interiors of the two long vertical supports on each side and the upper ends of the interiors of the two vertical supports on each side, a large roller is arranged outside the portion, between the two long vertical supports on the two sides, of the rotating shafts, a large roller groove is formed in the outer end face of the large roller, and two assembly rotating shafts are arranged in the large roller groove; assembly rollers are arranged outside the two assembly rotating shafts, rotating gears are arranged on the two sides of each assembly rotating shaft, a supporting column is fixed to one side of the interior of the large roller groove, a plurality of springs are connected to the lower end of the supporting column in an array mode in the direction of the assembly rotating shafts, and the other ends of the springs are jointly connected with a movable limiting plate; a plurality of moving guide rails are arranged in the large roller groove in the direction of the rotating shaft of the assembly in an array mode.

The application discloses a method for improving the lamination bubble of MLCC, comprising the following steps: mixing porcelain powder, organic solution, dispersing agent, adhesive and other auxiliary agents in a certain proportion to prepare porcelain slurry required for subsequent preparation; performing electrode printing after the casting operation of the porcelain slurry is completed; performing stacking after the film is peeled off, and forming a bubble discharge channel in the lamination process; performing uniform pressing on the film after the above operation is completed; and cutting each group of films to obtain the finished product; the method changes the morphology structure of the cast film by adjusting the ingredient process parameters and the formula, and forms the bubble discharge channel in the lamination process. Thus, the occurrence of the lamination bubble is inhibited, and in the packaging and uniform pressing process, the residual micro-bubbles can be effectively discharged from the bar block before the bar block is softened and pressed again, so that the layers of the bar block are fully pressed together, and the bar block delamination or cutting delamination caused by the local gas aggregation and residual is avoided.

This invention discloses an anaerobic biodegradable masterbatch for cast film of sanitary materials, characterized in that its main components, by mass percentage, include: 0.5-3% cypermethrin, 3-6% copper sulfate, 0.1-0.5% metal inorganic salt coating agent, 1-4% ammonium molybdate, 5-10% PLA, 5-10% nano starch, 1-5% carbamide, 7-12% fumed silica, and the balance being a biodegradable resin carrier. The preparation method includes dispersion treatment, centering treatment, structuring treatment, carrier implantation, and plasticizing granulation. The invention also discloses an anaerobic biodegradable cast film for sanitary materials, comprising the following components by mass percentage: 83.4%-97.13% PE-based cast film substrate for sanitary materials, 1-5% PE wax, 1-7.5% degradation masterbatch, 0.15-0.3% dispersant, 0.02-0.2% antioxidant, 0.2-0.6% white oil, 0.5-3% PE grafted maleic anhydride, and 0.2-2% stabilizer. The manufacturing method includes: material preparation, calcium carbonate pretreatment, melting, filtration, and casting. This invention achieves complete anaerobic biodegradation of PE cast leak-proof and breathable films, and also has antibacterial properties during normal use, making it suitable as a breathable film and base film for disposable sanitary materials.

The utility model discloses an air knife structure for a cast film machine and the cast film machine, and relates to the technical field of air knife structures, the air knife structure comprises an air inlet cylinder, the air inlet cylinder is provided with an air inlet and an air outlet; two fixing plates are hinged to the air inlet cylinder, the bottom ends of the two fixing plates are connected with a fan-shaped air knife through detachable connecting pieces, a plurality of air outlet holes are formed in the fan-shaped air knife, the fan-shaped air knife is connected with an air flow divider, and a plurality of air holes are formed in the air flow divider; the two ends of the two fixing plates are both connected with wind shielding cloth. The air knife is arranged to be of the fan-shaped structure, the air flow covering area is increased, the cast film cooling and shaping time is shortened, the cast film production efficiency is improved, meanwhile, the fan-shaped air knife is connected to the two fixing plates through the detachable connecting pieces, and the fan-shaped air knife can be replaced according to actual needs.

The invention belongs to the technical field of composite strips, and particularly relates to a high-metallic-luster single ethylene composite strip as well as a preparation method and application thereof. The film comprises a first casting PE film layer, an aluminized BOPE film layer, a film blowing PE film layer and a second casting PE film layer which are connected in sequence, the first casting PE film layer is formed by sequentially connecting a first outer layer, a first middle layer and a first inner layer; and the aluminized BOPE film layer is formed by connecting a second outer layer, a second middle layer and a second inner layer in sequence. The prepared composite strip has a good high-metal-luster effect, is suitable for manufacturing pipe packages such as daily chemical hoses, and is beneficial to environmental protection due to the adoption of a single recyclable material.

The application discloses a high-speed adhesive film flow forming machine, which comprises an extrusion die, a cooling roller one, a cooling roller two, a cooling roller three, a conveying belt support fixedly arranged with the roller support, and a tensioning roller one and a tensioning roller two rotatably supported on the conveying belt support; a conveying belt deviation rectifying device is also installed on the conveying belt support; an adhesive film conveying belt is wound around the tensioning roller one, the tensioning roller two, the cooling roller three, the cooling roller two, the cooling roller one and the conveying belt deviation rectifying device; an adhesive film temperature control device is installed on the conveying belt support, and the adhesive film conveying belt passes through the adhesive film temperature control device; the adhesive film temperature control device comprises a temperature control box body installed on the conveying belt support, two air uniformizing hole plates are fixedly installed in the temperature control box body, and the adhesive film conveying belt passes through the middle of the two air uniformizing hole plates which are parallel and spaced apart. The high-speed flow forming machine can effectively improve the production efficiency of the flow forming film and ensure the stability of the flow forming film production quality.

1. Name of the design product: multilayer co-extrusion cast film production line. 2. Use of the design product: production line for producing films. 3. Design points of the design product: in shape. 4. Picture or photograph best indicating the design points: perspective view 1.

The utility model discloses a cast film machine spare polishing device with dust removal function relates to cast film machine polishing tool technical field, including the shell, the shell one side installs the limit table, and the limit table lower extreme is equipped with the limit slot, and the limit table is installed in the polishing belt, and two equidistance metal's flexible table are installed to the limit table bottom, and the polishing belt front end and rear end are installed respectively with the detachable electrostatic belt, and the shell lower end one side is installed with the dust collecting box, and the dust collecting box one side is installed with the extension table, and the dust collecting box opposite side is installed with the dust absorption pipe, and the extension table penetrates the limit slot, and the extension table lower extreme is connected with the flexible table, in the utility model, through the cooperation between the polishing belt and the electrostatic belt, solved the problem that the waste dust scatters and pollutes the working environment, improved the cleanliness of working environment, through the cooperation between the dust collecting box, the dust absorption pipe and the extension table, solved the problem that a large amount of waste dust accumulation influences polishing effect, improved the dust removal efficiency of polishing device.

The utility model provides a cast film machine with tension adjusting device, including cast film machine body still includes tension adjusting subassembly, guide component, cleaning subassembly and static elimination subassembly, the utility model discloses the synergic working between tension adjusting subassembly, when conveying to the film, the rotary motor can drive the adjusting roller to move up and down, the tension of film is adjusted, prevents film from being too tight and leading to film deformation damage, has guaranteed the quality of film, through the synergic working between cleaning subassembly, when film transports respectively to guide roller no.

The utility model provides a cooling water circulating device for a flat filament drawing process, and belongs to the field of manufacturing of cooling equipment. The device comprises a cast film cooling water tank, a centrifugal pump, a purification tank, a storage tank, a mixing tank and a circulating pump, a circulating pipeline is arranged on the cast film cooling water tank, and the two ends of the circulating pipeline are located on the two sides of the cast film cooling water tank respectively; the centrifugal pump, the purification tank, the storage tank, the mixing tank and the circulating pump are sequentially mounted on the circulating pipeline. The device is very good in practicability, reasonable in structural arrangement and convenient to operate, cooling water is recycled for multiple times, waste of water resources is greatly reduced, the machining cost is reduced, and the effect is obvious.

This utility model discloses a twin-screw extruder for a casting film machine with a heat-separating structure. It includes a barrel, inside which two sets of feeding screws are installed. A drive mechanism for rotating the feeding screws is located on the outside of the barrel. Several sets of heating plates are installed on the outside of the barrel, and these heating plates are separated by heat-insulating partitions. A heat-insulating shell is installed on the outside of the barrel, with the heating plates located inside the heat-insulating shell. The heat-insulating partition includes a partition body, and a ceramic heat-insulating layer is fixedly connected to the outside of the partition body. Several sets of heat-insulating connecting strips are provided on the outside of the ceramic heat-insulating layer, with the other end of each connecting strip connected to a fiberglass board. This twin-screw extruder for a casting film machine with a heat-separating structure addresses the problem of existing twin-screw extruders being inconvenient for zoned temperature control of different areas by installing two sets of feeding screws inside the barrel.

The utility model discloses a casting membrane shell transfer device capable of quickly replacing long and short forks. The casting membrane shell transfer device comprises a transfer mechanical arm, a pick-and-place frame, a long fork rod and a short fork rod, the taking and placing frame is arranged on one side of the transferring mechanical arm and provided with a first placing frame and a second placing frame, and the first placing frame and the second placing frame are used for placing the long fork rod and the short fork rod correspondingly. The long fork rod or the short fork rod is connected with the tail end of the transfer mechanical arm through a quick insertion assembly, and a fork head is arranged at the other end of the long fork rod and used for being inserted into a bottom groove of a module. According to the utility model, the technical problem that the posture of the mechanical arm is difficult to cover all loading and unloading sites is solved, the smooth transfer of the membrane shell between different stations is ensured, the cost is reduced, and the occupied space is reduced.

The invention discloses a cast film preparation method based on a controllable transparency adjusting technology and application thereof, and relates to the technical field of cast films.The cast film preparation method comprises the following steps that S1, raw materials including, by mass, 80-100 parts of polyethylene resin, 0.24-0.5 part of a transparent agent, 0.24-0.5 part of a composite antioxidant and 1-2 parts of an ultraviolet light absorber are prepared; s2, the raw materials are added into a stirrer to be mixed, a mixed material is obtained, then the mixed material is put into a double-screw extruder to be extruded and granulated, and granules are obtained; s3, casting the obtained granules into a film, and quickly cooling after molding to obtain a cast film based on the controllable transparency adjusting technology; the mass ratio of the polyethylene resin to the transparent agent is 1: (0.003-0.005); the cast film provided by the invention has relatively high transparency and yellowing resistance, and the transparency of the cast film can be controlled by controlling the mass ratio of the polyethylene resin to the transparent agent.

The invention relates to a cast film consisting of a polypropylene composition comprising a) at least 90 wt.-% (based on the overall weight of the polyolefin composition) of at least one first polypropylene homopolymer (PPH-1) having a molecular weight distribution index Mw / Mn measured by GPC (according to ISO 16014-4:2003 and ASTM D 6474-99) in the range of 2.0 to 5.0, a MFR2 (ISO1133, 2.16 kg load at 230 °C) between 1.0 and 15 g / 10 min, a sum of 2,1- insertion in the range of 0.3 to 1.5 mol% (determined by 13C nuclear magnetic resonance (NMR) spectroscopy), b) 0.1 – 10 wt.-% (based on the overall weight of the polyolefin composition) of at least one second polypropylene (PPH-2) having a MFR2 (ISO1133, 2.16 kg load at 230 °C) between 0.5 and 20 g / 10 min, a melting point determined by differential scanning calorimetry (DSC, ISO ISO 11357 / part 3 / method C2) of at least 160 °C and a crystallization point (DSC) of at least 120°C, c) optionally at least one additive, wherein the sum of all ingredients always adds up to 100 wt.-%. The invention relates also to the use of said cast film in pharmaceutical packaging systems.

The application relates to the technical field of casting machine structures, in particular to a high-low-temperature TPU in-mold composite casting machine, which has the structure comprising a casting mechanism, a cooling and forming mechanism and a winding mechanism, wherein the casting mechanism comprises a casting film head fixed below a rack, and further comprises a cleaning mechanism rotatably connected to the rack and used for removing accumulated materials from the mold lip of the casting film head; the cleaning mechanism comprises a fixed base and a sliding assembly, the fixed base is internally provided with a driving device for driving the sliding assembly to slide along the length direction of the casting film head, the top end of the sliding assembly is provided with a scraper capable of being inserted into the gap between the mold lip and the casting film head, and the sliding assembly is further provided with a material discharging mechanism for discharging the accumulated materials in front of the reciprocating scraper; the glue removing hook of the application sequentially experiences the actions of lifting, peeling and separating under the driving of the transmission assembly, so that the accumulated materials in front of the scraper can be effectively removed, the problems of increased scraping resistance and incomplete scraping caused by the accumulated materials are avoided, and the efficiency and cleanliness of the mold lip cleaning are improved.

The application relates to the field of packaging materials, in particular to a low-temperature heat-sealable CPP casting film and a preparation method thereof. The low-temperature heat-sealable CPP casting film comprises a corona layer, a barrier core layer and a heat-seal layer. The raw materials of the corona layer comprise random copolymerized polypropylene resin, antistatic agent, opening agent and functional enhancer. The raw materials of the barrier core layer comprise block copolymerized polypropylene, auxiliary resin, nucleating agent and lubricant. The raw materials of the heat-seal layer comprise ternary copolymerized polypropylene, opening agent and anti-blocking agent. The application provides the low-temperature heat-sealable CPP casting film which can simultaneously maintain excellent comprehensive properties such as mechanics and optics, thereby meeting the higher requirements of modern high-speed automatic packaging and diversified contents on packaging materials.

A film processing line for producing a plastic film web, in particular a cast film, calendar or blown film line, including the following features:a. the film processing line is provided with a machine direction along which the film web is transported via the film processing line, andb. the film processing line is provided with a roller device that processes the film material, andc. the roller device is provided with at least one film roller that is in contact with the film web,characterised by the following further feature:d. the film processing line is provided with a cleaning device, with which a surface of at least one film roller of the roller device in contact with the film web can be cleaned in an operating state.

The invention belongs to the field of composite materials, and discloses a PTFE-based composite substrate with high dielectric, high thermal conductivity and low loss and a preparation method of the PTFE-based composite substrate. According to the substrate, polytetrafluoroethylene serves as a base body, CST ceramic powder and Si3N4 ceramic powder are evenly dispersed, the total content of the ceramic powder is 50-70 wt%, and a surface coupling agent is preferably adopted for modification. A cast film is prepared through a water-based casting process, and then the composite substrate is prepared through multi-layer lamination and vacuum hot press molding. The dielectric constant and the heat conductivity of the material are remarkably improved while the low-loss characteristic of PTFE is maintained, the technology is environmentally friendly, repeatability is good, large-scale production is easy, and the material is suitable for dielectric substrates of high-frequency and high-power electronic devices such as 5G communication and millimeter-wave radar.

1. The name of the design product: graphical user interface of automatic control system of electronic equipment (casting machine 9). 2. The use of the design product: an electronic device. 3. The design points of the design product: in the graphical user interface. 4. The picture or photo that best indicates the design points: interface change state diagram. 5. The graphical user interface is protected by the design, and the rear view, left view, right view, top view and bottom view are omitted. 6. The use of the graphical user interface: for displaying the working state of the casting machine. 7. The human-computer interaction mode of the graphical user interface: clicking or touching the icon or function button on the screen. 8. The change state of the graphical user interface: after starting, enter the main view interface, click or touch the sixth icon on the left side of the main view interface, enter the interface change state diagram.

This invention discloses an antibacterial and antistatic retort-grade CPP cast film. The CPP cast film has a three-layer co-extrusion structure, comprising, from top to bottom: a corona layer, a barrier core layer, and a heat-sealing layer. The heat-sealing layer, by weight, comprises: 80-100 parts of retort-grade ternary copolymer polypropylene, 15-25 parts of antibacterial and antistatic synergistic masterbatch, 2-4 parts of anti-blocking agent, and 0.5-1.5 parts of lubricant. The antibacterial and antistatic synergistic masterbatch, by weight, is formed by melt blending and granulation of raw materials comprising: 60-75 parts of carrier resin, 20-30 parts of nano-zinc oxide / graphene composite powder, and 5-10 parts of dispersant. This invention designs an antibacterial and antistatic synergistic masterbatch in the heat-sealing layer and utilizes nano zinc oxide / graphene composite powder to achieve efficient antibacterial and antistatic functions in a single addition. The three-dimensional network structure formed by the two remains stable after cooking at 121°C, and the function is long-lasting and does not decay, overcoming the problem of traditional additives precipitating and failing under high temperature and high humidity.

The utility model discloses a waste recovery device for cast film production, which belongs to the technical field of film production equipment, and comprises a rack arranged on the ground, the rack is provided with a waste separation component, a twisting component, a heating component and a cutting component which are used for enabling waste to pass through in sequence, the waste separation component is used for dividing two stacked waste into a plurality of strips along the width direction, and the twisting component is used for twisting the waste into a plurality of strips. The twisting assembly is used for guiding waste to be curled and twisted into a rope, the heating assembly is used for hot melting of the outer surface of the rope-shaped waste, and the cutting assembly is used for cutting the waste at equal intervals in the axis direction of the waste. According to the waste recovery device for cast film production, waste in the cast film production process sequentially passes through the waste separation assembly, the twisting assembly, the heating assembly and the cutting assembly, so that particles converted from the waste are uniform, internal pores of the cross section are large, an extruder can more easily mix and melt the recycled particles and new materials, and the production efficiency is improved. And the material uniformity of the cast film is improved.

The invention discloses a preparation method of a polyvinyl chloride resin composition and a polyvinyl chloride casting film, and relates to the technical field of polymer compositions. The composition and the casting-grade polyvinyl chloride film prepared from the composition have the advantages of higher elongation at break and tensile strength; meanwhile, the prepared polyvinyl chloride film is good in weather resistance, and can resist pulverization and degradation phenomena of a PVC material in a long-term outdoor environment. The prepared cast-grade PVC film also has the characteristic of isotropy, and the size stability of the film is good.

The invention relates to the technical field of anti-counterfeiting film preparation, and discloses a method for preparing a polarized light anti-counterfeiting base film through electrostatic attachment and the polarized light anti-counterfeiting base film, and the method comprises the following steps: 1, melting a polymer material; 2, the melt flowing out of the die orifice is attached to a cold roller through an electrostatic attaching system, and the electrostatic attaching system is arranged at the position, close to the die orifice, of the cold roller and can make the melt vibrate according to a certain frequency; and 3, cooling the melt along with the rotation of the cold roller to form a casting film, namely the polarized anti-counterfeiting base film with characteristic patterns. According to the invention, the electrostatic belt capable of vibrating is arranged on the cold roller, so that the orientation degree of macromolecules in the melt is correspondingly changed, air can be eliminated, good heat transfer can be realized, the polarized light effect is more obvious, and the polarized anti-counterfeiting base film with characteristic patterns is formed.

The invention relates to the technical field of curtain coating film forming and profiling, and provides curtain coating film forming and profiling equipment for composite non-woven fabric and a profiling production technology.The curtain coating film forming and profiling equipment for the composite non-woven fabric comprises a sliding rail, a tension adjusting mechanism and a rapid temperature adjusting mechanism, and when an extrusion system slides, a molten material can be driven to move; the tension adjusting mechanism is arranged on the side, close to the pressing position of the molten material, of the extrusion system, the tension adjusting system can supply air to the molten material, and the rapid temperature adjusting mechanism is fixedly connected to the machine body frame and can adjust the temperature of the molten material to be adjusted. The extrusion system is arranged between the tension adjusting mechanism and the rapid temperature adjusting mechanism, the rapid temperature adjusting mechanism can make contact with the tape casting forming system, the surface temperature of the tape casting forming system is rapidly adjusted, and the technical problem that in the prior art, the thickness difference of concave-convex positions of lines on non-woven fabric is large during tape casting film forming pressing is solved.

1. The name of the design product: graphical user interface of automatic control system of electronic equipment (casting machine 2). 2. The use of the design product: an electronic device. 3. The design points of the design product: in the graphical user interface. 4. The picture or photo that best indicates the design points: interface change state diagram. 5. The graphical user interface is protected by design, and the rear view, left view, right view, top view and bottom view are omitted. 6. The use of the graphical user interface: for displaying the working state of the casting machine. 7. The human-computer interaction mode of the graphical user interface: clicking or touching the icon or function button on the screen. 8. The change state of the graphical user interface: after starting, enter the main view interface, click or touch the sixth icon at the bottom of the main view interface, and enter the interface change state diagram.

This application relates to a method and apparatus for detecting defects in cast film. The method includes: acquiring a transmitted light scan image and a reflected light scan image of the cast film to be tested; identifying the location of defects in the cast film to be tested based on the transmitted light scan image and / or the reflected light scan image; acquiring a transmitted light image corresponding to the target defect location based on the transmitted light scan image; acquiring a reflected light image corresponding to the target defect location based on the reflected light scan image; and determining the defect type at the target defect location based on the transmitted light image and the reflected light image. This method can accurately identify the type of defects in the cast film to be tested by processing the transmitted light scan image and the reflected light scan image.