428 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 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.

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.

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 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 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 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 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.

The utility model relates to the field of protective film production, and discloses a plastic extruder for producing a computer screen protective film, which comprises a machine body, a machine barrel is arranged at the top of the machine body, a feeding barrel is arranged at the top of the machine barrel, a screw rod is arranged in the machine barrel, and a cleaning structure is arranged on the surface of the machine barrel. The cleaning structure comprises an extrusion nozzle, a threaded ring is fixedly connected to the outer wall of the extrusion nozzle, an embedding groove is formed in the inner wall of the machine barrel, a driving assembly is arranged on the surface of the machine barrel, a cleaning assembly is arranged in the machine barrel, the driving assembly comprises a fixing plate, and a motor is fixedly connected to the side wall of the fixing plate. The output end of the motor is fixedly connected with a reciprocating lead screw, and the outer wall of the reciprocating lead screw is in threaded connection with a moving block. According to the utility model, the cleaning structure is arranged to automatically clean the inner wall of the machine barrel, so that the production quality is ensured while the production efficiency is improved.

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 discloses a plastic extruder convenient for impurity removal, and belongs to the technical field of plastic extruders. The plastic extruder facilitating impurity removal comprises a machine base, a plastic extruder body is installed at the top end of the machine base, a spiral feeder is arranged at the top end of the plastic extruder body, a discharging opening of the spiral feeder is connected with a feeding opening of the plastic extruder body, a feeding hopper is installed at the feeding opening of the spiral feeder, and a filter screen is installed on the inner side of the feeding hopper. A cleaning mechanism for cleaning impurities on the surface of the filter screen is installed at the top end of the feeding hopper, an impurity discharging opening is formed in one side of the feeding hopper, a sealing door is arranged on the inner side of the impurity discharging opening, and an adjusting mechanism for controlling opening and closing of the sealing door is arranged on one side of the feeding hopper; according to the automatic impurity removal device for the plastic extruder, automatic impurity removal of the plastic extruder can be effectively achieved, impurity removal is convenient and rapid, and the automatic impurity removal device for the plastic extruder has high practical value.

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 utility model discloses an outlet leakage-proof mechanism for a plastic extruder, which relates to the technical field of plastic particle extrusion equipment and comprises a connecting barrel, a sealing ring is mounted at one end of the connecting barrel, a sealing gasket is mounted at the outer end of the connecting barrel, a movable pressure barrel is mounted at the outer end of the sealing gasket, and a top pressure spring is mounted at one end of the movable pressure barrel. A sealing contact ring is installed at one end of the movable pressing cylinder, a mounting groove is formed in the lower end of the movable pressing cylinder, a material collecting barrel is installed at the inner end of the mounting groove, a limiting groove is formed in one end of the movable pressing cylinder, and a barrel limiting block is installed at the inner end of the limiting groove. Through the arrangement of the connecting opening cylinder, the movable pressing cylinder, the jacking spring and the sealing contact ring, the material receiving side of the mold is in contact with the sealing contact ring and moves to enable the movable pressing cylinder to move inwards to be in contact with a discharging opening of a plastic extruder for material receiving, leaked plastic particles are placed in the connecting opening cylinder and the movable pressing cylinder, and the particles are prevented from splashing and jumping out; when the material receiving equipment and the pipe orifice thereof are moved away, the movable pressure cylinder is reset through the acting force of the top pressure spring, at the moment, the remaining materials are placed in the movable pressure cylinder 4, and the leakproof material receiving tightness of the device is improved.

The utility model relates to the technical field of extruders and discloses a PE plastic extruder granulation forming device which comprises a shell, a flange is fixedly connected to the top end face of the shell, an extrusion plate is fixedly connected to the inner wall of the flange, a first motor is fixedly connected to the top end face of the shell, and the output end of the first motor is fixedly connected with a rotating shaft. A pelletizing device is arranged on the side wall of the rotating shaft, and a screening device is arranged on the inner wall of the shell. According to the granulation forming device of the PE plastic extruder, the shifting rod downwards presses the movable inclined plate to enable the movable inclined plate to shake up and down, so that plastic particles are shaken, the probability that the plastic particles which are not thoroughly cooled are bonded together is reduced, the product quality is improved, mechanical blockage caused by particle bonding or accumulation is avoided, the cam upwards jacks the shaking plate, the shaking plate is prevented from being blocked, and the production efficiency is improved. The separation of the plastic particles bonded together is promoted, the number of the bonded particles is reduced, the uniformity of the collected plastic particles is ensured, and the quality of a final product is improved.

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.