539 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 field of plastic manufacturing, in particular to a plastic extrusion granulator. According to the technical scheme, the plastic strip granulating device is characterized by comprising a rack, an extruder, a water cooling mechanism, a water blowing assembly, a traction assembly and a granulating assembly, the water cooling mechanism is fixedly installed on the rack and is adjacent to the extruder, extruded plastic strips enter the water cooling mechanism to be cooled and shaped, and the water blowing assembly is installed on the water cooling mechanism 3 to blow water on the surfaces of the plastic strips to be dry. The traction assembly is mounted on the water cooling mechanism, is adjacent to the water blowing assembly, pulls the plastic strip to move into the pelletizing assembly and is subjected to pelletizing, the traction assembly straightens the plastic strip, so that the plastic strip is cooled and shaped in the water cooling mechanism, the straightening and shaping possibility of the plastic strip is improved, and the straightening and shaping quality of the plastic strip is improved; and the subsequent pelletizing quality can be improved.

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 utility model belongs to the field of express plastic bag production, and particularly relates to a plastic extruder with an anti-blocking feeding function, which comprises a support base, an extruder body is mounted at the top of the supporting base; a feeding pipe is mounted on the side surface of the extruder body; a feeding hopper is fixed to the top of the feeding pipe through a fixing bolt. A supporting frame is fixedly connected between the bottom of the feeding hopper and the top of the supporting base. Through the structural design that the mounting frame is arranged in the feeding hopper to drive the rotating shaft to rotate, then the rotating shaft drives the stirring blades to rotate, and plastic particles are stirred, the function of effectively avoiding blockage and bridging in the feeding hopper is achieved, and the problem that when the plastic particles are put into the plastic extruder, the plastic particles cannot be blocked is effectively solved. The problems that plastic particles are prone to blockage, bridging and the like at a feeding port, the feeding port is blocked, the plastic particles are affected to enter the extruder, and machining of the plastic extruder is prone to being affected are solved.

The invention relates to the technical field of cable extrusion, and discloses a cable production plastic extrusion device which comprises a supporting mechanism, winding mechanisms, a melting mechanism and an extrusion mechanism, and the two winding mechanisms are detachably connected to the two sides of the top of the supporting mechanism correspondingly so as to wind and release a cable; the melting mechanism comprises a drainage cylinder arranged in the middle of the top of the supporting mechanism, and the drainage cylinder is located between the two winding mechanisms and used for bearing molten plastic melt. According to the plastic extrusion device for cable production, the multiple scraping plates are detachably connected to the inner side wall of the conveying pipe in the opposite directions, when a wire penetrates through a molten plastic melt in the conveying pipe, the scraping plates can evenly scrape the melt on the surface of the wire for multiple times, and compared with a traditional mode that only the wire penetrates through the melt without a coating structure, the scraping plates are convenient to use; the problem that the thickness deviation of the insulating layer is too large due to lack of accurate control can be effectively avoided.

The utility model discloses a discharging frame for U-shaped gasket machining, and relates to the technical field of plastic gasket machining. The device comprises a moving frame, a cutting assembly is fixedly connected to the interior of the moving frame, a partition assembly and a collecting assembly are slidably connected to the interior of the moving frame, a plastic extruder is fixedly connected to the outer surface of the cutting assembly, the cutting assembly is used for cutting off plastic produced by the plastic extruder, and the partition assembly is used for blocking the U-shaped gaskets. According to the U-shaped gasket forming device, the cutter is connected with the baffle, the motor drives the cutter to rotate, when a blank enters the discharging groove in the baffle from the forming groove, the cutter cuts off the blank from the position between the forming groove and the discharging groove, the U-shaped gasket is formed, then the cutter returns from the position below the forming groove, the cutter back of the cutter can be prevented from making contact with the blank in the forming groove, and therefore the U-shaped gasket is formed. The cut U-shaped gasket falls down along the baffle, the baffle separates the U-shaped gasket from the cutter, and the situation that the cutter breaks the U-shaped gasket can be avoided.

The invention relates to the technical field of plastic extrusion production, in particular to a polyethylene plastic rim charge recycling extruder which comprises a base, a gear motor, an extrusion screw, a supporting frame and a heating cylinder and further comprises a feeding frame, a feeding hopper, a smashing assembly, a driving motor and an extrusion assembly. The smashing assembly is arranged on the inner side of the feeding frame and the inner side of the feeding hopper, the driving motor is installed on the outer side of the feeding hopper, and the driving motor is in transmission connection with the smashing assembly. According to the invention, the fed polyethylene film rim charge is sheared and crushed, the size of the polyethylene film rim charge is reduced, and then the polyethylene film rim charge is continuously pressed, so that the problem that the whole extruder needs to be improved in a large scale due to the existence of a large amount of air in the mutually stacked polyethylene film rim charge during secondary production of the recycled polyethylene film rim charge by the extruder is solved; the extrusion production cost is increased, and a large amount of improvement funds need to be consumed.

A threshold assembly 400 is mounted in use on a door sill 2 to seal a gap below the bottom surface 13 of an exterior door 10. The assembly includes first and second metallic parts 20, 30, e.g. aluminium extrusions, joined by an insulative body (40, fig 7F), e.g. a plastics extrusion, which extends below the bottom surface of the door when closed. A compression seal 50 is arranged in compression between a stop surface of the first part and a first side 11 of the door when closed. A bottom seal 60, 70 is mounted on the insulative body to engage the bottom surface of the door when closed. Drainage holes 45 may be formed through the insulative body 40 to open within an upwardly open recess 41 defining an air pocket 80 below the bottom surface of the closed door in-between the compression seal and the bottom seal.

In order to attach a transverse rib to a finished HDPE winding pipe while using a winding type forming process, and the transverse rib needs to be consistent with the winding type forming pipe to have the capacity of coherent production, a plastic extruder head needs to be designed, and the plastic extruder head and the winding type forming pipe rotate synchronously while the transverse rib is extruded. The utility model designs an axial straight rib linkage laying machine head which comprises a shell which is fixed on an external rack and at least comprises two parts which are combined into a ring shape, and a groove is formed in the shell and used for placing an extrusion ring; the extrusion ring is embedded into the shell, a communicating groove is formed in the top surface of the ring, an extrusion opening die is installed on an inner ring, the communicating groove is communicated with the extrusion opening die, through holes are axially formed in the surface of the extrusion ring, and the through holes are formed in the extrusion ring at equal intervals; the groove of the shell is matched with the communicating groove of the extrusion ring to form an annular cavity; and an input hole is formed in the shell and is communicated with an external plastic extruder and the annular cavity.

The utility model discloses a cooling device for a plastic extruder, and relates to the technical field of plastic extruders, including a cooling box, wherein a spray chamber, a water cooling chamber and a blast chamber are sequentially arranged inside the cooling box from left to right, wherein a spray mechanism is arranged in the spray chamber, a water cooling mechanism is arranged in the water cooling chamber, and a blast mechanism is arranged in the blast chamber. The utility model sequentially conveys extrusion pieces through the spray chamber, the water cooling chamber and the blast chamber through the cooperation of each group of conveying racks, and firstly sprays and cools the extrusion pieces through a spray head, so that the extrusion pieces are initially cooled, and then soaked in cold water in the water cooling chamber, and gradually transitioned to a low temperature to prevent the extrusion pieces from being damaged, and then the water on the surface of the extrusion pieces is blown dry by a fan.

The utility model relates to the technical field of granulation equipment, in particular to a detachable granulation template for a plastic extrusion granulator, which comprises an inner core, a middle ring is arranged on the outer edge of the inner core, an outer ring is arranged on the outer edge of the middle ring, and a plurality of granulation belts which are annularly distributed and connected end to end are arranged on one side of the middle ring; the mounting structure is arranged in the granulation belt, and the mounting structure is used for facilitating mounting and dismounting of the granulation belt; the granulation belt can be conveniently mounted and dismounted through arrangement of the mounting structure, the granulation belt can be quickly mounted and dismounted through mutual cooperation of the expansion part, the threaded rod and the threaded hole, and compared with existing structural arrangement, the granulation belt can be quickly mounted and dismounted when damaged, operation is easy and convenient, and the granulation belt can be quickly mounted and dismounted through cooperation of the expansion part, the threaded rod and the threaded hole. And meanwhile, under the mutual cooperation of a limiting block, a connecting strip, a spring, a mounting plate, a connecting plate and a limiting hole, the position of the threaded rod can be self-locked in the using process, and the threaded rod is prevented from falling off in the using process.

The invention discloses a plastic extrusion molding machine, belonging to the field of plastic production. A plastic extrusion molding machine includes a spiral agent barrel and a feed port connected to the top of the spiral agent barrel, and also includes a grinding component capable of processing plastic particles to uniform size, the grinding component is connected to the feed port, and the grinding component includes a grinding cylinder and a centrifugal cylinder arranged in the grinding cylinder; a cleaning component elastically connected to the inner wall of the grinding cylinder, the cleaning component is annularly equidistantly arrayed on the outer wall of the centrifugal cylinder, the top of the feed port is symmetrically connected with two groups of feed troughs, a support plate is connected between the two groups of feed troughs, the grinding cylinder is rotatably installed above the support plate through a second rotating shaft, and the plastic particles to be processed are respectively ground twice, fully ensuring that the plastic particles are of the same size and ground evenly, thereby ensuring the same heating time, and being able to be heated evenly in the spiral agent barrel, and ensuring the finished product quality of the plastic product.

The present invention belongs to the field of plastic recycling technology, and specifically relates to a PC engineering plastic recycling cabinet, comprising a pulverizer, a plastic extruder, a granulation chamber, and a pulverization and cleaning chamber. An interlayer air-drying chamber is located between the granulation chamber and the pulverization and cleaning chamber. The pulverizer is installed in the pulverization and cleaning chamber, and a feeding device is connected to the bottom of the pulverizer. The feeding device passes through a cleaning tank and is connected to the air-drying chamber. A water hole is provided in the feeding device at the position corresponding to the cleaning tank. The granulation chamber is provided with a plastic extruder, and a granulation device is provided at the discharge end of the plastic extruder. The granulation device is used to cool the plastic. The granulation chamber is located near one side of the air-drying chamber and is located on both the upper and lower sides of the granulation device. A fan three is provided on each side of the granulation device. The air-drying chamber includes a porous rotary belt, the inner side of which is connected to the air outlet of the fan three. The present invention can fully automatically recycle and granulate defective products and scraps from the plastic production process in a small space.

The utility model provides extrusion equipment for plastic processing. The extrusion equipment for plastic processing comprises a supporting table, an extrusion pipe is fixedly connected to the top of the supporting table, a screening box is fixedly connected to the top of the supporting table, a separating screen is movably connected to the interior of the screening box in a sleeved mode, a smashing box is fixedly connected to the side face of the screening box, and a guiding and conveying pipe is fixedly connected to the bottom of the smashing box in a sleeved mode. According to the extrusion equipment for plastic processing provided by the utility model, the crushing box is arranged, when plastic extrusion processing is carried out, plastic particles are put into the screening box, so that the separating screen can guide and convey the plastic particles with larger volumes into the crushing box, and at the moment, a first motor is started; according to the plastic particle crushing and processing device, the first motor can drive the crushing blades to rotate rapidly, then plastic particles in the crushing box are crushed and processed, the plastic particles are conveyed into the screening box through the guiding and conveying pipe, the plastic particle crushing and processing effect is achieved, and convenience is brought to plastic extrusion and processing.

The invention relates to a plastic extruder with a multi-section temperature control function, which is applied to the technical field of plastic extruders and comprises an extrusion barrel, a feeding heating section module, a compression heating section module, a metering heating section module, a heating barrel part, a temperature control oil barrel, a drainage guide pipe, a communication port, a telescopic module, an opening and closing cover, a lifting air cylinder and a pressure piston. The extrusion barrel is provided with the feeding heating section module, the compression heating section module and the metering heating section module, and circulation of heat conduction oil among the feeding heating section module, the compression heating section module and the metering heating section module is controlled; the initial temperature of the feeding heating section module, the compression heating section module and the metering heating section module is increased and reduced, and temperature regulation and control of an electric heating coil on the heating cylinder part are matched, so that the time for reaching the target temperature is shortened, the temperature control regulation efficiency of the plastic extruder is effectively improved, and the hysteresis of temperature rising and falling regulation is effectively reduced.

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 relates to the technical field of plastic bar extrusion and shaping, and discloses plastic bar extrusion and shaping equipment with an anti-adhesion structure, the plastic bar extrusion and shaping equipment comprises a bottom plate, the upper end surface of the bottom plate is provided with plastic extrusion equipment, a forming cavity, a cooling cavity, a matching mechanism and a separation bin with a cavity inside, the partition bin is driven by an external stepping motor to rotate intermittently, a plurality of containing grooves used for containing the plastic bars are formed in the cavity in the circumferential direction, and bearing assemblies and inner supporting assemblies used for bearing and internally supporting the plastic bars are arranged in the containing grooves. According to the extrusion molding equipment, the phenomena that the cooling effects of the inner wall and the outer wall of the plastic hollow bar are not consistent in the molding process and pits are easily generated after collision can be effectively solved, and meanwhile, the problem that adjacent plastic bars are further cooled along with the room temperature environment and are adhered to each other is also synchronously solved.

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 plastic extruders, and provides an automatic feeding plastic extruder for PE pipe production, which comprises an extruder body, the outer end of the extruder body is fixedly connected with a mounting plate, one side of the mounting plate is fixedly connected with a mounting frame, the interior of the mounting frame is fixedly connected with a cavity feeding pipe, and the cavity feeding pipe is fixedly connected with a feeding pipe. A cavity plate is fixedly connected to the top end of the cavity feeding pipe, a discharging assembly is arranged in the cavity plate, and the discharging assembly comprises a connecting rod rotationally connected to the interior of the cavity plate. A transmission bevel gear at the outer end of the connecting rod drives a second bevel gear and a connecting rod at the bottom end of the second bevel gear to rotate; and the rotating stirring rod stirs materials in the feeding hopper, so that the materials are prevented from being accumulated at the position of a connecting pipeline between the extruder body and the feeding hopper, and the phenomenon that the interior of the feeding hopper is blocked is avoided.

The utility model belongs to the field of plastic extrusion dies, in particular relates to a modified ultra-high molecular weight polyethylene plate extrusion die, and aims to solve the problems that an upper die plate of an existing ultra-high molecular weight polyethylene plate extrusion die can move left and right in the process of adjusting the distance between die plates, so that the die plates are staggered, and the die plates are damaged. In order to solve the problem that product quality is affected in the prior art, according to the scheme, the device comprises a shell, a movable plate and a trapezoidal plate, a fixed plate is fixedly connected in the shell, the movable plate is slidably connected in the shell, and the movable plate is matched with the fixed plate. According to the utility model, through the cooperation of all the parts, the problem that the product quality is influenced due to dislocation between the templates in the process of adjusting the distance between the templates is solved, the extrusion efficiency is higher, the extrusion effect is better, the purpose of stable quality of extruded plates is achieved, and the practicability is higher.

The utility model relates to the technical field of extrusion processing, and in particular to a biaxially stretched plastic extrusion mold that is convenient for cooling, comprising a mold body, a transmission mold cavity is opened transversely through the surface of the mold body, a stretching cavity is opened at the center of the inner cavity of the transmission mold cavity, an annular baffle is fixedly connected to the inner wall of the stretching cavity, and a core rod is transversely installed in the inner cavity of the transmission mold cavity. The utility model has the advantages of air cooling and heat removal by setting a ventilation auxiliary cooling component, a stretching cavity and an annular baffle, and can use the high thermal conductivity of the annular baffle to perform air cooling and heat removal on the material flowing through the transmission mold cavity when the drainage fan is in working state, and discharge the heat exchange hot air in time; by setting a port rapid cooling component, it has the advantages of rapid cooling and heat exchange, and can cooperate with the heat exchange ring to quickly cool the molding port when the semiconductor refrigeration plate is in working state, so as to achieve the effect of secondary cooling.

The utility model discloses an internal pressure balancing device for a plastic extrusion die, which relates to the technical field of pressure balancing and comprises a die box, a bottom plate arranged at the bottom of the die box, a detection component arranged on a hydraulic cylinder and comprising an elastic sheet, and a shifting sheet arranged on one side, far away from the elastic sheet, of the hydraulic cylinder. First fixing rods are arranged on the two sides, close to the hydraulic cylinder, of the top of the bottom plate correspondingly, second fixing rods are slidably connected to the first fixing rods, an elastic piece and a shifting piece are arranged on the two second fixing rods correspondingly, extension rods are arranged on the hydraulic cylinder and the second fixing rods correspondingly, and a button is arranged at the bottoms of the extension rods. The pressure adjusting assembly comprises a guide pipe, the guide pipe is fixedly communicated with a vacuum pump, the detection assembly is arranged, the air pressure in the mold box in the extrusion process is detected, when the air pressure is too low, the vacuum pump is started to inject air into the mold box, otherwise, the vacuum pump is pumped out of the mold box, the internal pressure balance is guaranteed, and the mold is prevented from being abraded in the extrusion process.

The utility model provides a plastic extrusion device, which relates to the technical field of plastic processing. The utility model comprises a support frame, wherein an extrusion barrel is fixedly connected to the top of the support frame, a second motor is fixedly connected to one end of the extrusion barrel, a spiral rod is fixedly connected to the output end of the second motor, an extrusion head is arranged at one end of the extrusion barrel away from the second motor, a connecting device is arranged at one end of the extrusion barrel, a stirring barrel is arranged at the top of the extrusion barrel, a first motor is fixedly connected to the top of the stirring barrel, a stirring blade is fixedly connected to the output end of the first motor, a cleaning device is arranged at the bottom of the stirring blade, and when the connecting device is used, the extrusion head is manually sleeved on one end of the extrusion barrel, and then the positioning block is slid into the inside of the connecting groove, and then the extrusion head is well arranged at one end of the extrusion barrel, and the extrusion head and the extrusion barrel can be easily disassembled by reverse operation, so as to easily replace the extrusion head.

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 relates to the field of extrusion equipment, and discloses movable plastic extrusion equipment which comprises an equipment body, a material control mechanism is fixedly arranged on one side of the upper end of the equipment body, a discharging pipe is fixedly arranged at the upper end of the material control mechanism, and a material storage mechanism is fixedly arranged at the upper end of the discharging pipe. A cooling mechanism is fixedly arranged on one side of the equipment body, and the upper end of the cooling mechanism is fixedly connected with a connecting pipe. When the equipment is used, the storage mechanism can drive the rotating shaft and the stirring rod to rotate through the rotation of the arranged second motor, and materials can be stirred when the stirring rod rotates, so that the phenomenon that workpieces are influenced due to insufficient reaction of the materials is reduced; the material control mechanism can drive a hinge rod to rotate through rotation of an arranged third motor, when the hinge rod rotates, a hinge block can be driven to move, when the hinge block moves, a baffle can be driven to move, and when the baffle moves, the space in the material control mechanism can be adjusted.