90 results about "Plastic injection moulding" patented technology

Profile arrangement for jamming protection and injection mould are provided. A connecting portion of a support profile constructed as a plastic injection moulding and a fastening area of a zonally elastically flexible switching profile are constructed as positively interconnectable plug-in profilings.

An automatic continuous batching apparatus for dynamically proportioning multiplex raw granular materials, stirring them and supplying the mixture to the chemical fibre spinning machine or plastic injection moulding machine features that the PLC plus step motor are used to constitute an automatic metering control system with high precision up to 0.01% or more, the software can find out the number of dropping holes for each material within one metering period, and the self-cleaning and pre-mixing apparatuses are used for higher reliability and uniformity.

The invention provides a kind of ultra-large plastic injecting and forming process and device, the device includes plastic injecting, performing mechanism; clamping mechanism; hydraulic system; electric appliance control system, there sets a safe door on the machine mantle; the modelocker unit assembly has series oil cylinder, several grades reinforcement structure; the die thickness can adjust device unit assembly; brake safe device unit assembly. The process is: automatic starting, clamping pressure, locked mode, injecting, premolding, injection completing, locking mode locked force is released, material quantity system, safe door, die sinking, mold loose core, taking the combinations, mold loose core reset. The mold thickness adjusting device unit assembly can change large mold with variable specs. The teeth braking safe device unit assembly can guarantee the safely operation.

The invention discloses an on-line condition process monitoring method for a plastic injection moulding process, and belongs to the industrial monitoring and fault diagnosis field. The on-line condition process monitoring method comprises the steps: S1 utilizing a sensor to collect the data under various conditions, and forming a training sample set X for modeling; S2 performing data pre processing and normalization to enable the mean value of the training sample set X to be 0 and enable the variance to be 1, and then obtaining a matrix X'; S3 according to the matrix X', applying Gaussian kernel function to calculate and obtain a distance matrix W; S4 standardizing the distance matrix W, obtaining a Markov matrix P (1), obtaining P(t) by making the P(1) to migrate t times, and performing spectral decomposition of the obtained characteristic matrix X' based on the P(t); S5 inputting the characteristic matrix X' and the condition Tq corresponding to various samples into an error back propagation neural network in pairs to receive training, and preserving the neural network model with the highest prediction accuracy as the model for monitoring; and S6 performing practical monitoring. The on-line condition process monitoring method successively realizes on-line monitoring of high dimension data.

The utility model relates to a kitchen cleaning waste water processor; a box-type shell and an upper cover are processed and injection molded from PVC plastic, and one end of the upper cover is provided with a detachable filter screen cover, the filter screen cover is downwardly fixed with a large filter screen, and the upper end of the filter screen cover is provided with sewage In the water inlet, there is a drainage interface in the middle of the other side of the shell, and there are multiple slots for fixing the water baffle in the shell; There is a silicone pad between the shell and the upper cover, and the shell and the upper cover are tightly sealed by several buckles. The filter screen is covered with a silicone pad, and the filter screen is screwed and fixed on the upper cover. Four lower water baffles The interior of the shell is divided into five sedimentation chambers, and the four upper baffles are inserted into the last four sedimentation chambers respectively. The water passing through the filter screen goes upwards, enters the first sedimentation chamber, is blocked by the upper baffle plate and flows downwards, and then goes upwards and passes through the four sedimentation chambers. When the level is turned back, the flow rate of the water slows down, the dregs are gradually precipitated, and the grease in the water is adsorbed by the oil-absorbing felt when passing through the upper and lower baffles, so that the discharged water is relatively clean.

The invention discloses a method for manufacturing an electronic device shell, which comprises the following steps of: providing a metal piece, forming a plurality of micro anchoring holes on the surface of the metal piece, and putting the metal piece in a plastic injection moulding and forming mould, wherein the plastic injection moulding and forming mould is at first temperature; feeding molten plastic into the plastic injection moulding and forming mould, and ejecting and bonding the molten plastic to the surface of the metal piece, wherein the plastic injection moulding and forming mould is at second temperature; and the second temperature is higher than the first temperature.

The invention relates to a water pump impeller made of a polyphenylene sulfide (PPS) material. A material of an impeller body is an engineering plastic composed of pure polyphenylene sulfide (PPS) which accounts for 50-70 percent of the weight of the impeller body and modified glass fibers which account for 30-50 percent of the weight of the impeller body; an impeller seat with an inner groove is installed in the impeller body, and the impeller seat and the impeller body are integrated into a whole. A manufacturing method of the water pump impeller provided by the invention comprises the steps of: separating a preheated movable mould of an impeller mould from a stationary mould; sleeving the preheated impeller seat into an impeller seat positioning shaft inside the movable mould; then performing mould matching and mould locking; and delivering PPS plastic in a charging barrel of a plastic injection moulding machine to a spray nozzle of the plastic injection moulding machine, injecting the PPS plastic into the movable mould of the impeller mould, and maintaining pressure to form a finished water pump impeller product made of PPS material. The water pump impeller has the characteristics of lighter weight, good dimensional stability and dynamic balance, corrosion resistance, high strength and the like, and an automobile water pump employing the PPS impeller has the advantages of smooth operation, high efficiency and long service life.

A drive mechanism for an injection molding machine has an output element that is moveable in a straight line and an electric motor drive unit having an electric motor and a piston-cylinder unit which has a first piston-cylinder unit in the force chain between the output element of the electric-motor drive unit and the movable component. A rapid actuating movement is possible and, the action of a high force is also achievable wherein a second piston-cylinder unit and a third piston-cylinder unit. A fluidic connection between the first cylinder chamber and the second cylinder chamber is controllable via a valve. When the valve is open, the second hydraulic piston displaces pressurized liquid from the second cylinder chamber into the first cylinder chamber, to actuate the movable component and, when the valve is closed, the third hydraulic piston displaces pressurized liquid from the third cylinder chamber into the first cylinder chamber to exert a high force on the movable component.

The invention relates to a nylon nano composite material and a preparation method thereof. The composite material comprises the following components in percentage by weight: 60-90 percent of nylon and 10-40 percent of maleic anhydride graft elastomer, in the terms of 100 percent of the summation of the weight percentage of the two components, 1-5 percent of organic montmorillonite, 0.5-3 percent of compatilizer, 0.5-2 percent of dispersing agent and 0.2-1 percent of antioxidant are added. The preparation method comprises the following steps of: (1) mixing the nylon, the antioxidant, the organic montmorillonite, the dispersing agent, the maleic anhydride graft elastomer and the compatilizer by a high-speed mixer for 3-5 minutes; and (2) carrying out melt extrusion granulation on the mixture by using a double screw extruder at the extrusion temperature of 230-260DEG C and the rotation speed of the screw of 50-150rpm; and then sampling by using a plastics injection moulding machine. Compared with the traditional nylon modified material, the invention better balances the rigidity, the toughness, the heat resistance and the size stability of the nylon, thereby providing the nylon nano composite material with favorable integrated performance and widening the application range of the nylon.

The present invention relates to a circular disk type plastics injection moulding machine. It includes rotary disk device, injection moulding device and mould-closing device. The described rotary disk device includes rotatable circular disk and drive device for driving circular disk and making it be rotated; The described injection moulding device includes horizontal pre-injection mechanism and vertical injection mechanism; and the mould-closing device includes a mould-closing hydraulic cylinder over the circular disk. Said invention also provides its working principle and operation method.

The invention provides a calculating method of a plastic injection moulding technological window. The method comprises the following steps: selecting types of technological parameters, determining factors of an orthogonal test, determining the level of each factor according to the value range of the technological parameters, and selecting an orthogonal table according to the numbers of factors and levels; calculating pressure distribution, melt temperature distribution and shearing speed distribution of a product in a moulding process, and calculating the inlet maximum pressure, the melt maximum temperature difference and the maximum shearing speed; evaluating each technological parameter combination in the orthogonal table in the second step according to the calculating result to establish quality evaluation of the product; training a training sample by a support vector sorting machine according to the quality evaluation of the product to calculate an optimal solution and a threshold value; and constructing a discriminant according to the training sample, the optimal solution and the threshold value to describe the technological window of selected parameters. The method provided by the invention is free from comprehensive tests, the calculated amount of numerical simulation is less, and the high-dimensional non-linear technological window can be directly described through a discrimination function.

The invention discloses a trilateral spiral twisted band. The trilateral spiral twisted band is characterized in that the trilateral spiral twisted band is of a periodic structure and is formed by three width-equal metal sheets with the thickness of being about 1 mm, long edges of the three metal sheets are welded together in a butt joint mode, and the included angle between every two adjacent metal sheets is 120 degrees; the trilateral spiral twisted band is formed in a spiral twisting and fabricating mode, and the twisting rate of the trilateral spiral twisted band is about 2.0; the outer diameter of the trilateral spiral twisted band is 0.5 mm-1.0 mm smaller than the inner diameter of a heat exchange pipe, and the length of the trilateral spiral twisted band is generally equal to or smaller than that of the heat exchange pipe; the trilateral spiral twisted band is inserted into the heat exchange pipe without a fixing device; materials for the trilateral spiral twisted band are determined according to specific working conditions; as for occasions with corrosive media, stainless steel can be selected for the trilateral spiral twisted band, and the trilateral spiral twisted band can also be formed in a plastic injection moulding mode; as for occasions without corrosive media, plain carbon steel is selected for the trilateral spiral twisted band. The trilateral spiral twisted band is simple in structure and convenient to install, can be directly inserted into the heat exchange pipe, has dual functions of strengthening of heat transfer of fluid in the pipe and scale prevention, and is good in economical efficiency and high in practicability.

The invention relates to a spindle drive which has a spindle extending in longitudinal direction, a driving worm of an adjusting drive, and a spindle nut of the adjusting drive, which is in engagement with the spindle over an internal tooth and with the driving worm over an external tooth such that the spindle nut is displaceable into a rotary motion by the driving worm to adjust the adjusting drive along the spindle. The external tooth extends with a tooth depth (H) from a first end surface (33) along a cylindrical housing surface (32) towards a second end surface (34). In such a structure, the spindle drive satisfies rigid requirements for a spindle drive and the spindle nut can be simply produced especially by plastic injection moulding.

A very large plastic injection moulding apparatus is composed of an injection-storage-pre-plasticizing system with multi-nozzle multi-point injection structure, a mould consisting of movable and static moulds and its close mechanism, a press system, a casing safety system, a hydraulic system, an electric controller and a heater for nozzles. Its technology includes such steps as closing mould, injection, cooling, opening mould, and taking product out of the mould.

Module (10) for a platform comprises a body (12) having at least one side (14A) for adjoining a side of another module. At least two spaced dovetailed shaped lugs (16A, 16B, 16C) are located at the side (14A) to define a shaped region (18) so that a corresponding lug on another module can be positioned in the region. The module has a central region (28) with a plurality of apertures (30) arranged in a honeycomb pattern. A cover strip can be applied to periphery sides of the platform to improve both the aesthetics and safety. A method of loading goods on a platform is disclosed, and a module with loaded goods can be detached from the platform. The module is produced by plastics injection moulding and recycled plastic such as polyethylene can be employed. A plurality of modules can create a platform, pallet, flooring, formwork or a rainwater tank stand.

The invention relates to an application of scrap tire rubber powder and scrap polystyrene (PS) foam to production of PVC (polyvinyl chloride) or vinylidene chloride or CPVC (chlorinated polyvinyl chloride) laminates or other sections and appliances. Plenty of cheap black pollutants-scrap tire rubber powder and white pollutants-scrap PS foam are simultaneously adopted as the main modifiers, thus the processability can be improved, the impact strength can be improved and the released hydrogen chloride can be simultaneously absorbed, and the scrap tire rubber powder and the scrap PS foam are matched with defined amount of zinc oleate and barium oleate thermal lubricating stabilizers which can absorb hydrogen chloride and conventional processing aids to produce the CPVC and PVC materials with low prices and excellent properties through the production processes such as preheating, mixing, laminating and the like or produce such sections as bars, sheets, pipes and the like or plastic appliances by adopting plastic extruders and plastic injection moulding machines.

The invention discloses a plastic injection moulding mold for cooling and demoulding conveniently. The plastic injection moulding mold comprises a lower mold, a second top cap, a separation plate andan air vent, a first guide post and a second guide post are fixed at the top end of the lower mold, the second top cap is installed at the top end of the second guide post, the separation plate is fixed in a bottom groove, a control magnet is fixed at the top end of a center shaft, vertical plates are fixed at the top ends of a first inner magnet and a second inner magnet, a function spring is installed on the vertical plate, the function spring and the inner wall of a top groove are mutually connected, and the air vent and a cooling pipe are mutually connected. The plastic injection mouldingmold for cooling and demoulding conveniently improves the structure of the traditional plastic injection moulding mold by adopting the novel structure design, so that the device still can rapidly coola plastic product not cooled in the mold after the injection moulding is finished, the product finishing injection moulding is rapidly separated from the mold, the mold can be injection-moulded againconveniently, and the production efficiency is improved.

The invention provides a master batch capable of intelligently regulating temperature and a preparation method of the master batch. The master batch contains surface-hydrophobic phase-changed microcapsules; common microcapsules are surface-hydrophilic, and are poor in compatibility with polymer base material in processes such as granulation and spinning, so that not only is the performance of the master batch reduced, but also the microcapsule loss is very high; the phase-changed microcapsules provided by the technical scheme are surface-hydrophobic, and are good in compatibility with polymer base material and excellent in heat resistance. According to the preparation method, the selectable polymer base material types are wide, the operability is strong, the cost is low, and the popularization is facilitated. The master batch is used for the field of melt spinning, non-woven fabric and thin film production, plastic injection moulding and the like, and active roles are played for product quality and market competitiveness improvement.

The invention discloses a plastic injection moulding composite board of ultrasonic welding, including a plastic panel, a plastic pallet, a injection moulding piece, the plastic panel and the plastic pallet are directly extruded to shape or shape by suction after extruding; the injection moulding piece can shape by direct injection moulding or by plural injection moulding pieces; the contact area of the injection moulding piece and the plastic panel, the plastic pallet are welded together by ultrasonic, wherein the contact area of the inner surface of the injection moulding piece and the plastic panel, the plastic pallet is provided with protruding ribs or salient points melted between the panel, the pallet and the injection moulding piece to make them connected together when the ultrasonic is welding, also an inner buried reinforcement is added between the plastic panel and the plastic pallet under the condition with higher requirement, which advance the strength and reduce the dose of plastic pieces. After adopting the structure, the plastic composite board has the advantages of low cost, few materials, easy manufacture, light quality, easy automatization, even surface, cleaness etc., which can be used in the chair board, the file cabinet, the article storing cabinet, the material frame, the wall decorative board, the wardrode clapboard etc.

The invention discloses a method for producing a low-pressure oil injection nozzle of an automobile by using an MIM (metal injection moulding) technique. The method comprises the following steps of (1) weighing the following raw materials according to weight percent: 90 to 95% of 430 stainless steel powder and 5 to 10% of resin-based multi-component adhesives; injecting into blanks on a plastic injection moulding machine by using a die, wherein the temperature of the die is 90 to 110 DEG C, the temperature of the materials is 180 to 210 DEG C, and the injection pressure is 0.7 to 0.9 Bar; removing most organic substances from injected blanks under the protection of atmosphere by utilizing high temperature, wherein the derosination temperature is 130 DEG C, the derosination protection atmosphere is NH3, and the derosination time is 3 to 5 hours; sintering into the final part state in an intermittent vacuum furnace at the protective atmosphere of hydrogen, wherein the intermittent vacuum furnace is a common intermittent vacuum sintering furnace, the sintering protection atmosphere is Ar2, the highest sintering temperature is 1300 DEG C, and the whole sintering cycle is 20 to 22 hours; and pressing an insert into the oil injection nozzle by using a jig so as to complete assembly. According to the method, the MIM technique is adopted, so that the production efficiency is improved, the batch cost is only 50% of that of a traditional technique, no material is wasted in the whole production process, and the dimensional accuracy fully satisfies drawing requirements.

An injection moulding machine for plastics is composed of machine frame, industrial control computer and hydraulic mechanism. On said machine frame, there are vertical mould closing unit with dual knuckle levers, ball-leading screw shift unit, lubricating unit, vacuum pneumatic unit, safety rod unit, injection unit and drier. Its advantages are strong mould-blocking force, instantaneously opening mould, precise position control, and correct dosage for each injection.