191 results about "Plastic molding" patented technology

The invention relates to the technical field of plastic molding and treatment, and discloses a molding processing and post-treatment process of low-odor plastic, which comprises the following steps: extruding a plastic melt containing volatile components into a to-be-cut material strip, pelletizing in a pelletizing area by using a pelletizing device, and synchronously adjusting the pulse spraying frequency to adapt to the pelletizing frequency, an alternating stress field is induced on the surface layer of a material strip through periodic cold impact and mechanical vibration, a micro-crack structure is formed on the surface layer of plastic particles by controlling the particle size of atomized liquid drops, an exhaust channel for volatile component escape is constructed, and then the plastic particles are conveyed to post-treatment equipment for volatile component removal. A solid diffusion process blocked by a skin layer is converted into a physical inrush flow along a microcrack channel, so that a mass transfer energy barrier is reduced, efficient removal of peculiar smell components is realized, and thermal degradation and yellowing of particles are avoided.

An injection molding apparatus for producing a plastics molding comprising a first component, a second component, and a third component comprises a first mold plate having at least 3 first mold nests, and a second mold plate having at least 3 second mold nests. In the closed state, the mold plates cooperate in the production of the plastics mold. In the opened state, the second mold plate is rotatable relative to the first mold plate. The at least 3 second mold nests comprise, in a case A), at least two second mold nests for injection molding the first component, and at least one second mold nest for injection molding the third component, or, in a case B), at least two second mold nests for injection molding the second component, and at least one second mold nest for injection molding the first component.

The invention relates to the field of plastic forming, in particular to a centralized feeding and gas supply collaborative plastic forming system which comprises a hopper, a drying machine, a weighing machine and an extruding machine which are sequentially connected in a sealed mode. The air supply pipeline is respectively connected with the hopper and the stirrer so as to introduce high-pressure hot airflow; the stirrer is connected with the material returning and feeding pipeline and the material conveying pipeline, the material returning and feeding pipeline is connected with the weighing device through the vacuum pump, and the material conveying pipeline is connected with the hopper and used for circulating the plastic raw materials supplied in a centralized mode; and the central controller is used for carrying out material supply and gas supply cooperative control on the extruder through an SAC reinforcement learning model so as to control the drying quality of a plastic molding product and the material returning amount of the material returning and feeding pipeline. According to the invention, material supply and gas supply in the hopper, the drying machine and the weighing machine are cooperatively blended, so that the material supply quality of the extruder is ensured, and the reliable quality of a plastic molded product is ensured.

The invention relates to the technical field of plastic molding, in particular to a plastic pad extrusion molding cooling device which comprises a vertical frame, a fixed cylinder, a roller, a spiral sleeve and a detection assembly. The roller is divided into a plurality of cooling cavities for independently supplying water, water is supplied to the cooling cavities at the same time, the problem of uneven cooling caused by water flowing is solved, the spiral sleeve forcibly cools water to form turbulent flow, and compared with smooth laminar heat exchange, the cooling efficiency is improved, and the service life of the roller is prolonged. Then, the cooling temperature is detected in real time by means of the detection assembly, external supplementary cooling is conducted according to the situation, and therefore the mode that water is independently supplied to the multiple cooling cavities for turbulent cooling and matched with external supplementary cooling is formed, and the uniform cooling degree of the plastic pad is comprehensively improved; and the quality problems of buckling deformation, sinking, shrinkage and the like of the plastic pad caused by non-uniform cooling are avoided.

The invention relates to the technical field of plastic forming, and discloses a plastic leftover material forming process of a layered compaction structure, which comprises the following steps: S1, raw material pretreatment: selecting a new plastic material meeting performance requirements, drying, mixing with pretreated recycled material particles in proportion, uniformly stirring, and feeding into a raw material storage tank for later use; s2, melting and injection molding: feeding the mixed raw materials into an injection molding machine, heating in different areas through a charging barrel, and stirring and melting into a melt through a screw rod; the die set is arranged, through an immediate leftover material separation and recovery system, the cut leftover materials can be rapidly recycled, soil and water pollution caused by leftover material accumulation is avoided, meanwhile, waste of plastic raw materials is reduced, and the development concepts of green manufacturing and circular economy are met. Due to the sealing protection design of the die set, pollution caused by melt leakage is avoided, and diffusion of dust and harmful gas is reduced through the sealing structure of the movable groove.

This utility model discloses a polypropylene extrusion molding device, relating to the field of plastic molding technology. The polypropylene extrusion molding device includes a polypropylene extrusion unit with a feed inlet. A first motor is fixedly connected to one end of the polypropylene extrusion unit, and a support frame is fixedly connected to the bottom of the polypropylene extrusion unit. When it is necessary to change to a different specification mold, the current to the magnetic conductor coil is cut off, causing the magnetic conductor to lose its magnetism and the magnetic attraction between it and the permanent magnet inside the mold to dissipate. At this time, the old mold can be directly removed. After replacing it with a new specification mold, the new mold is placed against the sealing plate and aligned with the extrusion hole. The magnetic conductor coil is then energized, causing it to regain its magnetism and re-establish magnetic attraction with the permanent magnet inside the new mold. The entire process requires no additional mechanical fixing structure; mold replacement can be quickly completed simply by switching the current on and off, significantly improving the device's adaptability to different product specifications.

This invention relates to the field of plastic molding and processing technology. The objective is to provide an injection molding mold for an automotive seat backrest, comprising a mold body consisting of a male mold and a female mold. A recessed air-cushion mounting cavity is provided on the surface of the male mold opposite to the plastic part molding area. The air-cushion mounting cavity communicates with a drive cavity located on the back of the male mold. A retractable air-cushion device is provided within the air-cushion mounting cavity. The retractable air-cushion device includes an ejector rod, a retractable sleeve sleeved outside the ejector rod, an inflation and pressurization mechanism, and an air-cushion driving mechanism. Driven by the air-cushion driving mechanism, the retractable air-cushion device can switch between injection molding state, mold opening and locking state, and air-cushion state. Compared with existing methods, this invention results in a lower plastic part deformation rate and better positioning, leading to a higher overall product yield.

The invention discloses multifunctional multi-layer co-extrusion equipment, and belongs to the technical field of plastic molding extrusion. Comprising a multi-layer co-extrusion die head and a plurality of sets of modular extruders, a transparent master batch feeding barrel is assembled on each set of modular extruder, and conveying barrels, used for melting materials, on the modular extruders are all connected to the input end of the multi-layer co-extrusion die head for multi-layer co-extrusion; the side, close to the multi-layer co-extrusion die head, of a conveying cylinder of each set of modular extruder is cut off, a lifting type switching module is arranged at the cut-off end, a transparent particle plastic mixing unit and a color master batch plastic mixing unit are integrated on the lifting type switching module, and the transparent particle plastic mixing unit and the color master batch plastic mixing unit are integrated through a switching mechanism of the lifting type switching module. The quick color changing function of the multi-layer co-extrusion equipment in small-batch customized production is realized, and the problems of low efficiency and raw material waste caused by global shutdown for cleaning a screw rod and a machine barrel during color changing due to a fixed runner structure of the existing traditional equipment can be effectively solved.

This invention relates to the field of plastic molding, and more particularly to a composite material molding die for a target aircraft fuselage. The die includes a mold base, with a lower wing mold fixedly mounted on one side of the upper end of the mold base. An upper wing mold is positioned above the lower wing mold. A servo push cylinder is fixedly mounted on the rear of the other side of the upper end of the mold base. A connecting frame is fixedly mounted on the output end of the servo push cylinder. A carrier sleeve is fixedly mounted on the end of the connecting frame. Two shell prisms are symmetrically slidably mounted inside the carrier sleeve, extending from the upper and lower ends of the carrier sleeve respectively. Arc-shaped shells are fixedly mounted on opposite ends of the two shell prisms. Arc-shaped wiping cloths are provided on opposite surfaces of the two arc-shaped shells. A return spring is provided between the opposite ends of the two shell prisms and the carrier sleeve. This invention reduces the labor intensity of workers, facilitates use, reduces dead angles for mold release agent wiping, and ensures effective demolding after molding.

The utility model discloses an air drying device for plastic forming on a plastic production line, and relates to the technical field of plastic processing. Comprising a base; the bottom of the air drying box is fixedly connected with the top of the base, and the inner wall of the air drying box is fixedly connected with a rotating device and an air drying device; the rotating device comprises a first motor, the bottom of the first motor is fixedly connected with the inner wall of the air drying box, an output shaft of the first motor is fixedly connected with a supporting frame, the outer wall of the supporting frame is fixedly connected with a second motor, an output shaft of the second motor is fixedly connected with a gear, and fixing blocks are symmetrically arranged on the two sides of the gear. The rotating device can enable the plastic forming part to be subjected to air drying treatment in all directions, meanwhile, the plastic forming part can be rapidly fixed through cooperation with the structure of the gear and the fixing block, and hot air can evenly act on all corners of plastic in the rotating process.

A method for at least partially automatic determination of at least one production process variable for manufacturing a predetermined target plastic molded part by an injection molding machine. The apparatus includes production devices having a plastic supply device for supplying the plastic to be processed as raw material, a plasticizing device for plasticizing and / or homogenizing the plastic to be processed, an injection device for injecting the plasticized and / or homogenized plastic into at least one molding device, and / or the at least one molding device for molding the injected plastic into a plastic molded part, wherein the apparatus and / or the production devices can be adjusted according to predetermined and / or predeterminable production process variables which are characteristic of the production process of the plastic products to be manufactured.

The invention relates to a column-free multi-cylinder C-shaped injection molding machine, belongs to the field of plastic molding equipment, and aims to solve the problems that an upper template of a cantilever of an existing C-shaped column-free injection molding machine is easy to droop and deform, and the service life and the safety of a hydraulic cylinder are influenced. The machine frame is provided with a horizontal part and a vertical part, the back face of the upper die plate is connected with the vertical part of the machine frame in a sliding mode through a sliding rail, and a C-shaped structure without a guide column is jointly formed. The lifting mechanism comprises two groups of auxiliary cylinders and pressure cylinders respectively positioned on two sides of the injection mechanism, auxiliary cylinder bodies are fixed on the front surfaces of pressure cylinder bodies, and driving ends of the auxiliary cylinders and the pressure cylinders are respectively connected with different positions of the top of the upper template to form a collaborative layout for resisting cantilever bending moment; the driving end of the pressure cylinder is connected with the upper die plate through an elastic piece, and the driving end of the auxiliary cylinder is connected with the upper die plate through a hinge so as to compensate deformation and protect the oil cylinder. According to the invention, a system solution is provided from structural design, deformation compensation to safe locking, and the rigidity, precision reliability and service life of the C-type column-free injection molding machine are remarkably improved.

The invention relates to the technical field of plastic forming and processing, and discloses a preparation device and method of a high-barrier co-extrusion film. The preparation device of the high-barrier co-extrusion film comprises a vertical frame, a film blowing mechanism, an air cooling mechanism and a film pressing mechanism, the film blowing mechanism, the air cooling mechanism and the film pressing mechanism are sequentially arranged in the height direction of the vertical frame, and the film pressing mechanism comprises a preliminary extrusion body used for preliminarily collecting a cylindrical film and a pressing assembly located above the preliminary extrusion body and used for pressing the collected film into a sheet shape; and the film drawing assembly is used for assisting in guiding the film. The film drawing mechanism designed by the invention not only has the capability of drawing a film, but also can be used as an auxiliary lifting structure to replace manual drawing during film guiding operation, so that cooperative operation of multiple persons is not needed, the operation difficulty of drawing the film for the first time is reduced, and the operation efficiency is improved; besides, when the film drawing mechanism guides the film, a small-amplitude left-right transverse moving and swinging mode is adopted, so that the film is stressed more uniformly when being stretched, and is not easy to break, and the preparation quality of the film is further guaranteed.

The invention discloses a high-precision demolding force detection injection molding machine, which belongs to the technical field of plastic molding performance detection, and comprises a base, a fixed mold seat, a movable mold seat, a movable mold driving device, an ejection component, an injection molding device and a control device, a first mold is mounted on the fixed mold base, and a second mold is mounted on the movable mold base; a locking piece and a fine-tuning execution piece are arranged between the first / second die and the mounting seat, and the output end of the fine-tuning execution piece is rigidly connected with the mounting surface of the first / second die and provides displacement adjustment along at least two mutually orthogonal directions; displacement sensors are arranged on the peripheries of the first / second dies; the second mold and the first mold are closed through the movable mold driving device to form an injection molding cavity, and a piezoresistive sensor is arranged on the inner wall of the injection molding cavity. According to the device, high-precision repeated positioning of the mold, constant-speed control in the ejection process, synchronous acquisition of multi-point force in the cavity and strict consistency of external conditions of two tests are realized, so that the demolding force difference of plastics with different additives on the same base material is accurately compared.

The invention relates to the technical field of material pretreatment, in particular to re-plastic molding material pretreatment equipment which comprises a rotary cleaning barrel, the rotary cleaning barrel is rotationally arranged at the feeding end of a feeding pipe and the discharging end of a discharging device and wraps the discharging end of the feeding pipe and the feeding end of the discharging device, and a vibration device is arranged on the circumferential inner wall of the cleaning barrel; a vibration extrusion device arranged on the feeding pipe is arranged in the cleaning barrel, the rotary cleaning barrel rotates to drive the vibration device to drive the vibration extrusion device to extrude and vibrate, the vibration extrusion device has magnetism, and the discharging device scrapes off and collects materials on the vibration device. In the rotating process of the rotary cleaning cylinder, the vibration device and the vibration extrusion device are driven to cooperate with each other to vibrate and extrude the material from the feeding pipe, so that impurities attached to the surface of the material fall off, and the impurities in the material are further removed in cooperation with the cleaning liquid in the rotary cleaning cylinder; and meanwhile, the discharging device scrapes off and discharges the treated materials adsorbed on the vibration device.

The invention provides a blank molding assembly block of diamond large single crystals and a plastic growth method, and belongs to the technical field of superhard material synthesis. The blank molding assembly block comprises a mutually-embedded metal catalyst layer formed by mutually embedding a plurality of prismatic table metal catalyst structures, the whole mutually-embedded metal catalyst layer is in a prismatic table shape, one of the upper end face and the lower end face of each prismatic table metal catalyst structure is in contact with the high-purity graphite carbon source layer, and the other one of the upper end face and the lower end face of each prismatic table metal catalyst structure is in contact with the seed crystal; the adjacent prismatic table metal catalyst structures are separated by an insulating layer, and the insulating layer is a Ca coating or a BN coating. A mutually-embedded prismatic-table-shaped metal catalyst structure with an axial temperature gradient and a carbon diffusion channel is constructed in a blank assembly block, diamond is induced to grow in a preset direction in an HPHT environment, directional shaping growth of the diamond is achieved under the condition that the process complexity is not improved, and the quality of the diamond is improved. The crystal morphology controllability, the catalytic agent utilization efficiency and the final drilling rate are remarkably improved, and the single-cavity yield is increased.

The invention discloses biomass-based water-solid plastic as well as a preparation method, a water-solid forming method and application thereof, and belongs to the field of plastics, the water-solid plastic is plastic which can be subjected to self-deformation forming only by using water without using a mold, and the obtained shape can be kept stable and is not influenced by water environment and humidity change. The water-solid forming method mainly comprises the following steps: pre-designing the shape of the biomass-based water-solid plastic, performing water treatment, and performing drying treatment after deformation. The water-curable plastic can be automatically deformed into various one-dimensional, two-dimensional or three-dimensional shapes, no mold is needed, expensive and complex instruments and equipment are not needed, and the method is a plastic forming processing method which is simple to operate, low in energy consumption, low in cost, green, environment-friendly and carbon-reducing. The biomass-based water-solid plastic is prepared from biomass which is rich in reserves, low in cost, sustainable to regenerate, biodegradable and good in biocompatibility, has good mechanical properties and can be widely applied to various fields.

The utility model discloses a mixing device for plastic product production, which comprises a feeding frame, a spiral feeding barrel, a mixing barrel and a control switch, wherein two feeding hoppers are fixed on the feeding frame; a first spiral discharging groove and a second spiral discharging groove are formed in the feeding barrel; the two feed hoppers are respectively communicated with the first spiral blanking groove and the second spiral blanking groove through pipelines; the feeding frame is fixed on the mixing barrel through the spiral feeding barrel; the control switch is arranged on one side of the mixing barrel; a stirring frame and a driving motor are arranged in the mixing barrel, the control switch controls the driving motor to start and stop, and the driving motor drives the stirring frame to rotate; a tank body discharge hole is formed in the lower part of the mixing barrel and is communicated with a feed hole of plastic forming equipment; during use, the stirring frame is started firstly, and plastic particles contained in the two feeding hoppers spirally enter the mixing barrel to be stirred; the stirring frame is directly mounted in front of plastic forming equipment, and can realize feeding while mixing.

The utility model belongs to the technical field of plastic package motors, and particularly relates to a motor plastic package casing with embedded heat dissipation flow channels and a plastic package motor. In order to overcome the defect of poor heat dissipation effect of the existing plastic package motor with large heat productivity, the utility model adopts the following technical scheme that the motor plastic package casing with the embedded heat dissipation flow channel comprises a thermosetting plastic molding piece, a heat dissipation flow channel and a heat dissipation flow channel, the heat dissipation assembly comprises a heat dissipation flow channel embedded in the cylinder part, a cooling liquid inlet and a cooling liquid outlet, wherein the cooling liquid inlet and the cooling liquid outlet are located in the heat dissipation flow channel. The heat dissipation device has the advantages that the heat dissipation device comprises the thermosetting plastic forming part and the heat dissipation assembly, the heat dissipation assembly comprises the heat dissipation flow channel embedded in the thermosetting plastic forming part, cooling liquid can be input into the heat dissipation flow channel through the cooling liquid inlet, the cooling liquid exchanges heat with the thermosetting plastic forming part in the heat dissipation flow channel, and the heat dissipation effect is improved. And after the motor is cooled, the cooling liquid flows out from the cooling liquid outlet.

The utility model relates to the technical field of plastic molding, in particular to a mold locking mechanism of an all-electric injection molding machine, which comprises a base, two sides of the upper end face of the base are respectively and fixedly connected with a fixed seat I and a fixed seat II, and the outer wall of one side of the fixed seat II opposite to the fixed seat I is fixedly connected with a fixed mold. A lead screw is rotationally connected to the first fixing seat, a driving block is in threaded connection with the outer wall of the lead screw, a rear push plate is fixedly connected to the outer wall of the driving block, a sliding plate is fixedly connected to the outer wall of the first fixing seat, a sliding block is arranged in the sliding plate in a sliding mode, and a first connecting plate is fixedly connected between the sliding block and the rear push plate; the sliding block is further fixedly connected with a second connecting plate. According to the mold locking mechanism, the sliding plate, the sliding rod, the sliding block, the first connecting plate, the second connecting plate, the front push plate, the driving block, the servo motor and the lead screw structure are matched with one another, so that the mold locking mechanism has the advantages of being more uniform in mold closing and higher in precision.

The application relates to an automatic yarn winding system for glass steel moulded grid forming and a yarn winding process thereof, which comprises a forming mould, yarn winding systems for laying yarns in a grid forming cavity of the forming mould, a glue injection system for pouring resin in the grid forming cavity of the forming mould, and a yarn pressing system for compacting the resin and the yarns in the grid forming cavity of the forming mould and exhausting bubbles, the yarn winding system has two yarn winding systems in total, and the yarns in multiple layers distributed in the upper and lower positions of the grid forming cavity of the same forming mould are laid through the cooperative action of the two yarn winding systems. The application has the advantages that the two yarn winding systems are designed, and the yarns in the grid forming cavity of the same forming mould are laid through the cooperative action of the two yarn winding systems, so that the yarn winding time can be greatly reduced, and the work efficiency can be effectively improved.

The application relates to the technical field of molds and discloses a recycling device for plastic forming mold adhered waste, which comprises a supporting frame arranged in an injection molding equipment; the supporting frame is rotationally connected with a rotating frame through a bearing seat arranged at the top of the supporting frame; a mold assembly is arranged on the outer side of the rotating frame; the mold assembly is provided with four cleaning pieces arranged in a circumferential array along the center of the rotating frame; and the mold assembly is provided with the cleaning pieces for cleaning the waste. The recycling device for plastic forming mold adhered waste can effectively solve the problems in the prior art that when cleaning the flash of the mold, manual scrapers or tools are usually used to manually remove the flash of the parting surface, the cleaning time is long, the proportion of the cleaning time in the production cycle is high, the utilization rate of the equipment is affected, the cleaning effect is influenced by the skill level of the operator, the residual flash can cause the mold to be not tightly closed, product burrs and size deviation defects are caused, and the like.

The utility model relates to the technical field of feeding devices, in particular to a multifunctional integrated plastic molding automatic feeding device which comprises a heat preservation material box assembly and a material conveying assembly, a first flow guide assembly is installed on the inner side of the material conveying assembly, the bottom end of the first flow guide assembly is fixedly connected with a connecting column, and the bottom end of the connecting column is fixedly connected with a second flow guide assembly. The material conveying assembly comprises a conveying cylinder, a partition plate is fixedly connected to the inner side of the conveying cylinder, a material passing opening and a guide hole are formed in the inner side of the partition plate, an electric telescopic rod is fixedly connected to the bottom end of the conveying cylinder, a discharging pipe is fixedly connected to the front end of the conveying cylinder, and an electromagnetic valve is fixedly connected to the inner side of the discharging pipe. According to the plastic feeding device, a traditional feeding mode is changed, plastic is cleaned to a certain degree while feeding is conducted, residues are reduced, the cleaning difficulty and cost are reduced, the service life of equipment is prolonged, and the production efficiency is improved.

The utility model belongs to the field of material forming and processing, and particularly relates to a plastic mold with a built-in water cooling system, which comprises a lower mold and an upper mold which are arranged in an up-down opposite and attached manner, are accurately butted and matched to jointly form a cavity for forming a plastic product, and further comprises a water cooling component, and a water cooling assembly is arranged between the upper mold and the lower mold. Through cooperative operation of a water tank, a cooler, a water pump, a connecting pipe, a backflow pipe and a cooling pipe in the water cooling assembly, circulating flow of cooling liquid in the plastic mold is achieved, heat generated by the plastic mold in the plastic forming process can be rapidly and effectively absorbed through the circulating flow, the temperature of the plastic mold is greatly reduced, and the service life of the plastic mold is prolonged. The cooling and curing time of plastic products is effectively shortened, the production efficiency is improved, and the development requirements of the modern manufacturing industry are met.

The present invention relates to the technical field of plastic molding, and relates to a five-axis sole printing and forming apparatus, comprising a frame, an injection movement system, a workpiece movement system, a plurality of injection tubes and a plurality of adhesive systems, wherein the injection movement system and the workpiece movement system are both mounted on the frame, and all the injection tubes are mounted on the injection movement system which drives the injection tubes to move above the workpiece movement system. Each of the adhesive systems comprises an adhesive feeding device, an adhesive lifting device, an adhesive storage device and an adhesive power device, wherein the adhesive storage devices are slidably mounted on the injection tubes, the adhesive feeding device is rotatably mounted on the adhesive storage device, the adhesive power device is mounted at the bottom of the adhesive feeding device, the adhesive power device drives the adhesive feeding device to swing, the adhesive lifting device is mounted at the bottom of the adhesive feeding device, the adhesive lifting device pushes the adhesive feeding device to rotate so as to expose the injection tube, and the adhesive feeding device slides along the bottom of the injection tube, thereby ensuring smooth multi-color molding.

The invention discloses a fused deposition modeling high-speed 3D printer, and relates to the technical field of plastic molding. The fused deposition modeling high-speed 3D printer comprises an equipment bottom plate, a printing fixing frame is fixedly connected to the top of the equipment bottom plate, a movable mechanical arm is fixedly connected to the front face of the printing fixing frame, a printing head is fixedly connected to the front face of the movable mechanical arm, and a material rolling wheel is fixedly connected to the back face of the printing fixing frame. According to the fused deposition modeling high-speed 3D printer, external water is pumped into a communicating container through a hydraulic water pump, and internal magnets enable corresponding outer magnets to move together through magnetic force, so that two positioning rods can lift a printing platform through supporting rods; due to the fact that the level of the interior of the communicating container is always kept at a certain height, the four positioning inner floating blocks are kept at the same height, the printing platform is kept flush with the horizontal plane, and then the printing precision is prevented from being affected by inclination of the printing platform.

This utility model discloses a plastic molding die with a side core pull for producing a panel. The panel has an outer surface, rounded corners connecting the edges of the outer surface, side surfaces connecting the rounded corners, and a back surface opposite the outer surface. The plastic molding die includes a fixed mold, a movable mold, and a side core pull. The fixed mold has forming recesses for forming the outer surface and the rounded corners. The movable mold has forming protrusions for forming the back surface. The side core pull has side forming portions for forming the side surfaces. The forming recesses, the forming protrusions, and the side forming portions cooperate to form a forming cavity for the panel. This utility model's plastic molding die with a side core pull improves the mold structure, avoids flash between the outer surface and the side edges of the coffee machine panel, and prevents product scrap due to improper flash removal.

The application relates to the technical field of plastic forming, in particular to an injection molding device for air conditioner inner shell processing, which comprises a forming fixed mold and a forming movable mold, one side of the forming fixed mold is provided with a space clamping frame body, a mold back plate is fixedly arranged on the side, away from the forming fixed mold, of the space clamping frame body, the space clamping frame body is in the shape of a rectangular frame, a positioning push sleeve is fixedly arranged on the side of the mold back plate, facing the space clamping frame body, an injection glue convex shaft is fixedly arranged on the side of the forming fixed mold, facing the mold back plate, and the injection glue convex shaft is inserted into the inside of the positioning push sleeve; the injection molding device can reduce or completely avoid the use of a release agent during the injection molding process of the air conditioner inner shell, can guarantee the stability of the demolding of the large-volume air conditioner inner shell workpiece, and can avoid the cleaning process or make the cleaning more efficient when a small amount of release agent is used during the subsequent processing and treatment of the outer surface of the air conditioner inner shell.

The invention relates to the technical field of plastic forming, in particular to an automatic polytetrafluoroethylene ball forming device which comprises a base, a mounting table is fixedly connected to the top of the base, a hopper is fixedly connected to the top of the mounting table, a stock bin, a double-roller bin and a discharging port are arranged in the hopper, and two pre-pressing rollers are symmetrically and rotationally connected in the double-roller bin; a plurality of hemispherical grooves are formed in the periphery of the pre-pressing roller; a feeding auger is rotationally connected into the stock bin, the output end of the feeding auger extends into the double-roller bin, and a pressure sensor is arranged at the bottom of the feeding auger. According to the invention, pre-pressing molding and secondary modification step-by-step molding design is adopted, a spherical cavity is formed through one-to-one correspondence of the hemispherical grooves in the periphery of the pre-pressing roller in the pre-pressing stage, air in powder can be discharged in time from the unclosed end parts of the hemispherical grooves in the extrusion process, and subsequent secondary modification further compacts a sphere; the problems of cracking and deformation caused by the fact that air is pressed in the ball body in the prior art are effectively reduced, the structural strength of the polytetrafluoroethylene ball is remarkably improved, and the service life of the polytetrafluoroethylene ball is remarkably prolonged.