302 results about "Plastics extrusion" patented technology

The invention relates to the technical field of plastic extrusion molding control, and particularly discloses a self-adaptive energy efficiency steady-state control method and system in a plastic extrusion molding process, and the method comprises the steps: collecting multi-dimensional data of the plastic extrusion molding process, the multi-dimensional data comprises process data representing the current production state, aging characteristic data representing the equipment health degree and auxiliary data; and performing preprocessing and feature fusion on the multi-dimensional data, calculating to obtain an equipment aging comprehensive index, constructing an aging trend prediction model based on a long-short-term memory network, and outputting an aging trend prediction value and aging rates of the screw and the machine barrel. According to the method, multi-dimensional data are collected in real time, the equipment aging comprehensive index and trend prediction model is constructed, the multivariable coupling coefficient and the multi-objective optimization function are dynamically corrected, and self-adaptive energy efficiency steady-state control under the equipment aging condition is achieved.

The invention relates to the technical field of blank visual inspection, in particular to a blank defect visual inspection method and system for a plastic extruder, and the method comprises the steps: carrying out the region segmentation of a real-time image, extracting a first-stage defect region, completing the preprocessing, and selecting a specific analysis path according to the defect type. Extracting multi-level defect features and forming a structured feature vector; the reliability degree of each feature is judged through feature integrity judgment and feature quality evaluation, real defects are recognized by adopting multi-stage judgment logic, defect type classification is carried out, and quality influence level multi-stage judgment logic and a branch processing strategy are given, so that accurate detection, classification and analysis of the defects of the plastic extrusion blank are realized. The detection accuracy and adaptability are remarkably improved, the optimal processing path can be automatically selected according to different production conditions and defect types, meanwhile, potential systematic problems are identified through defect correlation analysis, and comprehensive and in-depth information support is provided for quality control.

The utility model relates to the technical field of chemical fiber production, and discloses a screw extruder for chemical fiber raw materials, which comprises screw extrusion equipment for extruding waste plastics into chemical fibers, and a feeding device is arranged on the screw extrusion equipment; the feeding device comprises a mixed feeding mechanism and a plurality of groups of feeding mechanisms; the mixing and feeding mechanism comprises a mixing hopper, a feeding screw rod and a feeding motor; the feeding mechanism comprises a horizontal feeding cylinder, a feeding screw rod, a feeding motor and a feeding hopper; the feeding mechanism is used for conveying different waste plastics into a mixing hopper of the mixing and feeding mechanism; and the feeding screw rod is detachably mounted on the inner side of the horizontal feeding cylinder. The feeding mechanism is used for conveying different waste plastics into the mixing hopper to be mixed, the mixing feeding mechanism is used for fully mixing different types of waste plastics, the uniformity of raw materials is ensured, the detachable design of the feeding screw enables the maintenance and cleaning work of the equipment to be more convenient, the downtime is shortened, and the production efficiency is improved.

The invention discloses plastic extrusion equipment for plastic waste processing and recycling, and belongs to the technical field of granulation extrusion equipment.The plastic extrusion equipment comprises a main body module, a remelting module and a quantitative discharging module, the main body module comprises an extruder main body, and the bottom of the extruder main body is fixedly connected with a bottom plate; a heat dissipation water tank is fixedly connected between the front end face of the extruder body and the top of the bottom plate, a granulator is fixedly connected to the top of the heat dissipation water tank, and a cooling assembly is arranged in the heat dissipation water tank. Through the arrangement of the lifting assembly, the equipment can distinguish over-large and over-small unqualified plastic particles, the unqualified plastic is fed into the hopper again through the lifting assembly to be remelted and extruded again, the unqualified particles are utilized, meanwhile, the discharging quality of the equipment is guaranteed, and the situation that the unqualified plastic can affect subsequent use is avoided.

The invention discloses an auxiliary open fire heating device for improving the surface quality of extruded plastics. The auxiliary open fire heating device comprises a bracket base device and a fire jetting combustion furnace tray device and is characterized in that the bracket base device comprises a base and a support frame, and the support frame is mounted on the base; the fire jetting combustion furnace tray device comprises a gas inlet valve, a gas guide pipe and nozzle devices; the gas inlet valve is mounted at an inlet of the gas guide pipe; the nozzle devices are mounted on the gas guide pipe; and the fire jetting combustion furnace tray device is mounted on the bracket base device through the support frame. The auxiliary open fire heating device has the advantages of simplicity, convenience and feasibility and also has the advantages of being convenient to use, high in efficiency, high in practicability, light in structure and convenient to mount, disassemble and operate. Generally, when large-molecular-weight plastics of a molecular chain net structure, such as organosilane crosslinked polyethylene, are processed and produced, the auxiliary open fire heating device is directly mounted on a nose of the existing extruder by using magnetic absorption and utilizes open fire to carry out auxiliary open fire heating on a forming die orifice and an extruded wire so as to improve the poor surface quality of the extruded product.

The utility model relates to the technical field of blow molding machines, in particular to an extrusion blow molding hollow molding machine, which not only accelerates the cooling of plastics through cooling water and improves the working efficiency, but also is convenient to discharge shaped plastic products from a mold and saves the trouble of manual picking. Comprising a separation mechanism; the blow molding machine further comprises a discharging mechanism, an extruding mechanism, a molding mechanism, a blow molding mechanism and a cooling mechanism, the discharging mechanism is installed on the separating mechanism and facilitates discharging of shaped products, the extruding mechanism is installed on the separating mechanism and extrudes plastic, and the molding mechanism is installed on the discharging mechanism and molds the plastic. The blow molding mechanism is installed on the separating mechanism and blows up plastics, and the cooling mechanism is installed on the discharging mechanism and cools the molding mechanism and products.

The application discloses a kind of plastic extrusion equipment for plastic waste processing recycling, belongs to granulating extrusion equipment technical field, including main module, back to furnace module and quantitative discharging module, the main module includes extruder main body, the bottom of the extruder main body is fixedly connected with bottom plate, the front end surface of the extruder main body and the top of bottom plate are fixedly connected with heat dissipation water tank, the top of the heat dissipation water tank is fixedly connected with granulator, cooling assembly is arranged in the heat dissipation water tank, by the setting of large-aperture inclined screen, small-aperture inclined screen, vibration assembly, driving assembly, lifting assembly and material guiding box, so that the device can distinguish between oversized and undersized unqualified plastic particles, the unqualified plastic is also sent into the hopper by lifting assembly to be re-melted and re-extruded, the unqualified particles are utilized, and the discharge quality of the device is ensured, so that the unqualified plastic can not affect subsequent use.

The production process of the plastic strip comprises the following steps: S1, heating plastic to a hot melting state by adopting a plastic extruder, and continuously extruding through an extrusion opening to form a hot melting plastic strip; s2, the hot melting plastic strips enter a bearing area of a stacking mechanism from the extrusion opening in an extrusion spraying mode; s3, the stacking mechanism is driven to move to bear the hot-melt plastic strips, the bearing length L1 of the stacking mechanism on the hot-melt plastic strips in unit time is smaller than the extrusion length L2 of the plastic extruder on the hot-melt plastic strips in unit time, and therefore the hot-melt plastic strips are locally stacked in a bearing area near an extrusion opening, and wrinkles are generated; and S4, cooling and shaping the plastic strips which are locally stacked and have wrinkles to obtain the plastic strips which are non-uniform in thickness and have wrinkle textures on the surfaces.

This invention relates to a pyrolysis treatment method and system for waste plastics. The waste plastics undergo segmented dehydration and dechlorination in a waste plastic extrusion dehydration and dechlorination unit to obtain dechlorinated waste plastics. The obtained dechlorinated waste plastics then enter a waste plastic impurity removal treatment unit, where they are contacted with pretreatment agents and solvent oil for impurity removal treatment. The resulting effluent undergoes solid-liquid separation to obtain insoluble matter and a depurified plastic-containing solution. This depurified plastic-containing solution enters a pyrolysis unit for pyrolysis to obtain pyrolysis oil. The pyrolysis oil has very low metal, chlorine, and silicon content, effectively reducing the impact of impurities in the waste plastics on subsequent treatment units. This invention has low pollution discharge during production, good environmental performance, reduces carbon emissions, and has good environmental, social, and economic benefits.

The utility model provides a rolling device of plastic extrusion production line, including: rolling device, clamping device and conveying device, rolling device includes: rolling frame, servo motor, hold-down mechanism and rolling mechanism, servo motor is on rolling frame, servo motor output end installs rolling mechanism, rolling mechanism can be rotatingly installed on rolling frame, the rolling mechanism is equipped with the clamping device, the clamping device is equipped with the conveying device. A conveying device is arranged on one side of the winding frame and comprises a guide rail, a movable bearing device, a blocking mechanism and an upward guiding assembly, a clamping device is installed above the movable bearing device and comprises a base, an installation rod and a supporting clamping mechanism, and the base is connected with the top of the movable bearing device through the installation rod. According to the winding device of the plastic extrusion production line, the accurate clamping action is achieved through the linkage shaft and the clamping arms, the opening and closing state of the clamping arms can be conveniently and rapidly adjusted through the design of the telescopic adjusting rods, and therefore plastic rolls are efficiently grabbed and released, and the stability of the plastic rolls in the transferring process is guaranteed.

The utility model discloses a dust removal device for a feeding mechanism of a plastic extruder, which comprises a support frame, a two-way screw rod is rotatably mounted on the support frame, one end of the two-way screw rod is connected with a servo motor, the servo motor is mounted on one side wall surface of the support frame, and two ends of the two-way screw rod are respectively in threaded connection with a first threaded block and a second threaded block. The first threaded block and the second threaded block are both rotationally connected with connecting rods, the ends, away from the two-way lead screw, of the two connecting rods are rotationally connected to the same connecting ring, a feeding mechanism is movably installed on the connecting ring, and a dust removal component is arranged in the feeding mechanism. The stability and practicability of the device are effectively improved, meanwhile, the feeding mechanism can be adjusted to a manual contact area by adjusting the height of the feeding mechanism, components on the surface of the feeding mechanism are cleaned, and the cleaning efficiency of the device is further improved.

The utility model relates to the technical field of extrusion equipment, and discloses a composite modified plastic extruder which comprises a hopper, an output pipe is fixedly mounted on the lower surface of the hopper, a mounting plate is fixedly mounted on the outer surface of the hopper, three first connecting plates are fixedly connected to the outer surface of the mounting plate, and a sleeve is arranged on the lower surface of the hopper. Three second connecting plates are fixedly connected to the outer surface of the sleeve, bolts are rotatably arranged on the lower surfaces of the three second connecting plates, nuts are rotatably arranged on the outer surfaces of the bolts, and a plurality of die heads are slidably arranged on the inner surface of the sleeve; through cooperation of the hopper, the output pipe, the mounting plate, the first connecting plate, the sleeve, the second connecting plate, the bolt, the nut, the die head and the clamping plate, the die head and the hopper can be conveniently disassembled and assembled, cleaning can be facilitated, and meanwhile different die heads can be replaced to meet the forming requirement.

The present application belongs to the technical field of composite materials, and particularly relates to a plant fiber molded composite material, a preparation method thereof and an integrated system. The present application utilizes softwood to perform softwood pitch leaching-plant fiber modification-softwood pitch plastic extrusion integrated process, directly performs surface modification on the plant fiber by using the softwood pitch leaching liquor, reduces the surface polarity of the plant fiber and improves the performance of the composite material. The present application reduces the modification cost in the forming process of the plant fiber molded composite material while utilizing waste, and further crosslinks and extrudes to form softwood pitch plastic after concentrating the softwood pitch leaching liquor to prepare softwood pitch, so as to coat, strengthen and protect the plant fiber molded core material, prepare high-strength and high-stability full-green plant molded material, and provide technical support for the development of the softwood and plant fiber industry.

The application discloses a static temperature plastic extrusion forming processing device and a processing method, and belongs to the technical field of part forging processing. The device comprises an upper die, a bottom part of a lower die is provided with a limiting cavity, a heat dissipation hole is arranged at the bottom part of the limiting cavity, an outer wall of a die core is provided with a lap joint platform, an inner wall of the limiting cavity is provided with a limiting platform, the lap joint platform is used for abutting against the limiting platform and forming a pressing cavity between the outer wall of the die core and the inner wall of the limiting cavity, the pressing cavity is used for placing a forging state blank, a first extrusion boss is arranged at the bottom part of the upper die, the upper die is used for extruding and forming the forging state blank in the pressing cavity through the first extrusion boss, and the top surface of the lower die and the top surface of the die core are both used for limiting and supporting the bottom surface of the upper die. The die core and the lower die are used for forming the pressing cavity to limit the blank, and the modular design of the lower die and the die core is beneficial to improving the heating and heat dissipation efficiency of the die, thereby improving the forging processing efficiency, and further ensuring the heating uniformity of the blank during processing, which is beneficial to improving the processing quality of the forgings.

The invention discloses a low-additive migration transparent adhesive film and a preparation method thereof, and relates to the technical field of photovoltaic adhesive films. The low-additive migration transparent adhesive film comprises an EVA upper layer, a POE middle layer and an EVA lower layer which are arranged in a laminated manner, wherein the EVA upper layer and the EVA lower layer are made of EVA materials, the POE middle layer is made of POE materials, the aluminum-doped zinc oxide modified resin and the thermal initiator are added into the POE materials, and the aluminum-doped zinc oxide modified resin and the thermal initiator can cooperatively regulate and control the surface state, dispersity and surrounding medium environment of aluminum-doped zinc oxide plasma particles, so that the thermal stability of the aluminum-doped zinc oxide plasma particles is improved, and the service life of the aluminum-doped zinc oxide plasma particles is prolonged. According to the present invention, with the POE resin as the auxiliary agent, the plasma resonance condition is met, the pre-curing of the adhesive film during the plasticizing extrusion is easily achieved, the stability of the auxiliary agent in the POE resin is significantly increased, the auxiliary agent migration rate is substantially reduced, and the effective control of the auxiliary agent is achieved so as to reduce the auxiliary agent loss and prolong the service life of the assembly.

The utility model discloses a kind of plastic extruders for PVC plastic particle production, including conveying bucket, the front end of conveying bucket is fixedly connected with shunt head, the outer wall of shunt head is fixedly connected with a plurality of solenoid valves, the outer wall of solenoid valve is fixedly connected with discharge head. When plastic masterbatch is heated and melted, it can flow into from any one or several separation ports respectively, and several outlets on discharge head can be simultaneously connected with several same or different molds, so as to improve the efficiency of processing, and the corresponding outlet can be opened by solenoid valve, so that it can avoid that hot melt masterbatch flows into unnecessary outlet.

The invention discloses a wide-width multi-cavity integrated lightweight design method for a high-rigidity aluminum pedal of an electric bicycle. The pedal is formed by integrally extruding aluminum alloy, the integral wall is thin, the upper part is a panel, the lower part is a bottom plate, and the bottom plate is connected with a vertical rib to form a multi-cavity closed structure or a T-shaped rib is connected with a reinforcing cross beam; through holes are formed in four corners of the pedal plate, and connecting columns matched with the through holes in size penetrate through the through holes and are welded and fixed; the panels are all in an upwards-arched arc shape, a plurality of anti-skid lines are arranged on the upper surfaces of the panels, and arc-shaped covered edges are arranged on the two sides of the panels. The aluminum alloy extrusion integrated forming technology is adopted, traditional plastic extrusion or metal plate stamping is replaced, unification of light weight, high corrosion resistance and low-cost production is achieved, and the defects that a traditional plastic pedal is low in rigidity, prone to deformation, prone to aging, inflammable and not environmentally friendly, and a metal plate stamping die is high in cost are fundamentally overcome; and diversified requirements of the industry can be quickly responded, and preemptive preemption in the market environment of quick development of the electric bicycle is facilitated.

The utility model relates to the technical field of plastic extrusion production, and provides a plastic particle heating die head, which comprises a die head body, a discharge hopper is arranged at one end of the die head body, a quick release structure is arranged between the die head body and the discharge hopper, and the quick release structure comprises a second mounting plate fixed at one end of the die head body, and clamping grooves are uniformly formed in the second mounting plate. By arranging the quick release structure, the rotating shaft and the clamping block can be conveniently inserted into the clamping groove under the communication effect of the first mounting plate, and the clamping block and the second mounting plate can be conveniently and fixedly connected under the rotary clamping effect of the clamping block and the second mounting plate, so that the first mounting plate and the second mounting plate can be mutually fixed; and multiple groups of clamping blocks are arranged, so that the stability of connection between the first mounting plate and the second mounting plate can be ensured, the device has the function of being convenient to mount and dismount, and the convenience of the plastic particle heating die head in use is improved.

The utility model provides a plastic extrusion device which comprises a rectangular shell, a sample placing shell, a pipeline, a dust collecting frame and a liquid collecting tank, the dust collector is provided with the dust collection frame and the liquid collection tank; agglomerated dust and oil drops in the pipeline fall into the dust collection frame, and the oil drops on the inner wall of the exhaust hood flow into the liquid collection tank; therefore, pollution caused by the fact that agglomerated dust and formed oil drops drop into extruded molten plastic is effectively prevented.

The utility model discloses a plastic extrusion mud device is used in the lining of intermediate frequency furnace and is repaired, including base, fixed mounting has the stirring drum and extrusion mud cylinder on the base, fixed communication has vacuum tank between the stirring drum and extrusion mud cylinder, the top of stirring drum is fixedly installed and has the feeding frame, fixed mounting has vacuum pump on the vacuum tank. The utility model discloses through setting baffle, roof and drive assembly, when, when the plastic material is transported to the vacuum tank from the stirring drum, needs to extract vacuum, the staff can make the roof drive baffle move downward through drive assembly, thereby can make baffle block up the discharge port of stirring drum, avoid the air from the slit of stirring vane and plastic material in stirring drum and enter, thereby has promoted the leakproofness of vacuum tank, and then does not need vacuum pump continuous operation to keep the vacuum level in vacuum tank, has reduced energy consumption, has promoted the operation stability of vacuum pump and its durability.

The utility model discloses uniform plasticizing extrusion equipment for plastic particles, which relates to the technical field of plastic processing and comprises a base, a plastic extruder body is fixedly mounted at the top end of the base, a blanking barrel is fixedly mounted at the top end of the plastic extruder body, and a support plate is fixedly connected to the top end of the blanking barrel. A second motor is fixedly mounted at the top end of the supporting plate, the output end of the second motor rotationally penetrates through the lower portion of the supporting plate and is fixedly connected with a rotating column, a mounting groove is formed in the bottom end of the rotating column, and plastic particles about to fall into the discharging opening are further stirred and dispersed through a cross stirring rod, so that the liquidity of the plastic particles is guaranteed; according to the extrusion equipment disclosed by the invention, plastic particles are prevented from being blocked easily when passing through the interior of the discharging opening, so that the feeding speed of the plastic particles is stable, the filling amount of the plastic particles in the extrusion machine is uniform, the extrusion equipment can be uniformly plasticized and extruded, and the practicability of the extrusion equipment is further improved.

The utility model relates to the technical field of film production, in particular to an extrusion head of a plastic extruder. According to the technical scheme, the device comprises a shell, a first motor, a connecting cover and a supporting ring, the first motor is installed on one side of the outer wall of the upper end of the shell, a fixing block is arranged on the outer wall of one end of the first motor, sliding grooves are formed in the outer walls of the upper side and the lower side of the fixing block, and sliding blocks are slidably installed in the sliding grooves; a connecting cover is mounted on the outer wall of the end, penetrating through the sliding groove, of the sliding block, a supporting ring is mounted on one side of the inner wall of the connecting cover, a bearing is mounted on the inner wall of the supporting ring, an extrusion mold is rotatably mounted in the bearing, and a gear is mounted on the outer wall of one side of the extrusion mold. The effect of replacing the extrusion die is achieved, residual materials on the inner wall of the extrusion die are scraped and cleaned through a scraping plate, the residual material storage amount on the inner wall of the extrusion die is reduced, and the residual materials are prevented from polluting equipment.

The utility model relates to the technical field of plastic extrusion equipment, concretely relates to a modified plastic extrusion air cooling structure. The air cooling structure includes extruder head, cooling wind cover, fan, air guide spare, air outlet and mounting assembly. The cooling wind cover is sleeved at the discharge end outside of extruder head, and is fixedly connected with extruder head, the fan is communicated with the air inlet of cooling wind cover, is used for providing cooling airflow, the air guide spare is arranged in the inside of wind cover, is used for guiding airflow to cool extrudate uniformly, the wind cover tail end is equipped with air outlet for exhaust, and the mounting assembly is used for fixing wind cover and fan. The structure is high in cooling efficiency, airflow is uniformly distributed, is convenient to operate and maintain, and is suitable for a variety of modified plastic extrusion applications.

The utility model relates to the field of cooling water tanks, in particular to a sectional type water tank of a modified plastic extruder, which comprises a water tank piece, two partition plates are mounted in the water tank piece, the water tank piece is divided into an isolation cavity and two cooling cavities by the two partition plates, and guide components for guiding material strips entering the cooling cavities are arranged in the two cooling cavities. Supporting components used for guiding the material strips to leave from the cooling cavities are further arranged in the two cooling cavities. By arranging the adjusting assembly, namely rotating the screwing block, the position of the threaded sleeve on the screw rod can be easily adjusted, then the distance between the fourth guide roller and the partition plate is changed, the residence time of a material strip in the cooling cavity is adjusted, the cooling requirement of a specific material can be met under the condition that the moving speed of a production line is not changed, and the production efficiency is improved. And the flexibility and adaptability of production are improved, effective control over the material strip cooling process is achieved, and the consistency and reliability of product quality are guaranteed.

The utility model discloses aluminum-plastic panel production equipment with a residual defoaming powder eliminating structure. The aluminum-plastic panel production equipment comprises an aluminum-plastic compound machine, a plastic forming press, a plastic extruder and a defoaming pool, the defoaming tank is arranged between the plastic forming press and the plastic extruder; the defoaming tank is filled with water; and a material strip extruded by the plastic extruder passes through the water body of the defoaming tank and then is fed into the plastic forming press. According to the utility model, the plastic plate extruded by the plastic forming press is immersed in the water body of the defoaming tank, so that the unreacted quick lime and other defoaming agents fully react with the water under the controlled condition to generate calcium hydroxide, residual particles and reaction byproducts on the surface of the plastic plate are washed and removed after the plastic plate is washed, and the cleanliness of the composite interface of the plastic substrate and the aluminum plate is obviously improved; and after aluminum-plastic compounding, the interlayer bonding strength is improved, and the anti-stripping performance of the aluminum-plastic panel is effectively improved.

The utility model provides a composite extrusion die for a chlorine dioxide nano slow-release antibacterial material and a PBAT / PLA (poly (butylene adipate-co-terephthalate) / poly lactic acid) film, and belongs to the technical field of preparation of polymer films. The plastic extrusion die solves the problem that the plastic extrusion die in the existing market does not have the functions of lifting and position adjusting. The composite extrusion die for the chlorine dioxide nano slow-release antibacterial material and the PBAT / PLA film comprises an extrusion die body, an extrusion die head, a screw mechanism, an air knife system, a driving mechanism and a roller table, a feeding port is formed in the upper end of the extrusion die body, the extrusion die head is arranged at the front end of the extrusion die body, the roller table is arranged at the lower end of the extrusion die head, and the screw mechanism is arranged at the lower end of the extrusion die head. The air knife system is arranged at the lower end of the extrusion die body, and an adjusting mechanism is arranged at the rear end of the extrusion die body and composed of a machine body base, a rotary disc device and a lifting device. The lifting device has the advantages of being capable of lifting and adjusting the position.

The utility model provides a cooling device for a cable sheath, which comprises a cooling mechanism in sealed connection with the side wall of a case on one side of a wire outlet of a plastic extruder, the cooling mechanism comprises a cooling box, the left side and the right side of the cooling box are respectively provided with a cooling cylinder communicated with the cooling box, the end part of each cooling cylinder is provided with a flange plate, and the flange plate is connected with the cooling box. The side wall of each cooling cylinder is of a hollow structure, the hollow structures are filled with cooling liquid, the cooling mechanism further comprises circulating assemblies arranged on the outer sides of the cooling cylinders and communicated with the hollow side walls of the cooling cylinders, and the circulating assemblies comprise circulating water pumps arranged on the flange plates and S-shaped cooling pipes communicated with the circulating water pumps. According to the utility model, through the cooling mechanism communicated with the wire outlet of the plastic extruder, rapid and efficient cooling operation can be carried out on a sheath of a wire and a cable, and the cooling efficiency is greatly improved.

The invention relates to the field of high polymer material processing equipment, and particularly discloses a modified plastic extrusion granulation screen exchanger. The screen changer comprises a shell, a screen changing plate and a driving device; a screening element is arranged on the screen changing plate and comprises a filter screen bracket detachably assembled in the mounting through hole and a filter screen fixed on the filter screen bracket; the filter screen is in a spherical crown curved surface shape protruding towards the discharging section, the height of a spherical crown is smaller than the thickness of the screen replacing plate, and the sphere center of the spherical crown is located on the central axis of the feeding channel. The problems of flow field interruption, dead zone deposition and local overheating caused by a multi-layer planar series filter screen are effectively eliminated, continuous, uniform and low-maintenance melt filtration is realized, the purity of plastic particles is improved, the quality of plastic products is enhanced, and the device is particularly suitable for high-requirement scenes such as temperature-sensitive modified plastics, reclaimed materials and chemical fiber spinning.

The present invention provides a method for producing a molded article capable of achieving excellent extensibility by recovering a recycled plastic from a multilayer body that has a plastic film layer and a functional layer. This method for producing a molded article includes: an immersion step in which a multilayer body that has a plastic base material layer and a functional layer is immersed in an alkali-containing desorption liquid; a shaking step in which the multilayer body after immersion is shaken in the presence of water using a specific continuous shaking device that is provided with a dispersion medium in a container so as to obtain a recycled plastic; an extrusion step in which the recycled plastic or a composition that contains the recycled plastic is melted and kneaded at a specific temperature, and extruded; a take-up step in which the extruded melt-kneaded material is taken as a strand; and a molding step in which molding is performed using the strand.

The application relates to the field of plastic extrusion molding, in particular to a hanging clock plastic profile extrusion molding coloring device and process, which comprises a bottom plate, four telescopic columns distributed in a rectangular shape are arranged at the upper end of the bottom plate, support columns are arranged at the upper end of the telescopic columns, strip plates are arranged at the upper end of the support columns, upper and lower symmetrical semicylinders are arranged between the front and rear strip plates, the lower semicylinder is in sliding connection with the strip plate, a feeding groove is arranged at the top of the upper semicylinder, a discharging groove is arranged at the right end of the upper and lower semicylinders, a pressing unit is arranged on the support column, plastic particles and color master batches can be stored through the storage unit, the feeding amount of the materials can be adjusted through the adjusting assembly, further, the materials can be accurately adjusted through the indicating assembly, the plastic particles and the color master batches can be discharged into the upper and lower corresponding semicylinders through the set feeding amount, and the trouble of manual feeding is eliminated.