51results about How to "Improve injection molding efficiency" patented technology

The invention relates to the technical field of cable injection molding, and particularly discloses a continuous injection molding machine which comprises a rack, an injection system, a mold closing system and an adjusting mechanism, the injection system and the mold closing system are installed on the rack, the adjusting mechanism comprises a first driving part, a first adjusting rod, an adjusting gear, a second adjusting rod and a shifting rod, and an adjusting groove is formed in the middle area of a lower mold. The first adjusting rod and the second adjusting rod are arranged at the two ends of the adjusting groove correspondingly, the adjusting gear is rotationally arranged between the first adjusting rod and the second adjusting rod and engaged with the first adjusting rod and the second adjusting rod correspondingly, and the first adjusting rod and the second adjusting rod are symmetrically distributed relative to the center of the adjusting gear. The plurality of deflector rods are arranged on the first adjusting rod and the second adjusting rod respectively, and the first driving piece can abut against the first adjusting rod; according to the continuous injection molding machine, the cable in the lower mold can be shifted through the adjusting mechanism, so that the cable moves in the lower mold, and the injection molding position of the cable can be automatically adjusted.

The injection molding machine comprises an injection molding base table and a feeding table fixedly installed on one side of the injection molding base table, a heater is fixedly installed on one side of the upper portion of the feeding table, and a fixed mold table fixedly connected with the injection molding base table is arranged on the other side of the heater. When a plurality of injection molding heads on a mold table are all pressed in place by a spring rod, a gear shaft is driven to rotate through the operation of a double-shaft servo motor, so that a heat insulation belt extends upwards from the interior of an equipment box to the position between a heater and a charging barrel, the charging barrel is coated to block heat transfer, and meanwhile, the charging barrel is subjected to heat preservation; according to the injection molding device, the plastic melt in the charging barrel is prevented from being continuously heated and dried when the plastic mold is cooled and demolded, meanwhile, the situation that heating operation on the injection molding melt needs to be stopped after injection molding filling in the mold is completed is improved, energy consumption is reduced, and the injection molding efficiency is improved.

The utility model discloses an injection molding machine with a quick injection molding mechanism, which comprises an injection molding machine main body, a hydraulic cylinder is mounted on one side in the injection molding machine main body, the output end of the hydraulic cylinder is fixedly connected with a first mold, and a second mold is fixedly mounted on the other side in the injection molding machine main body. A cooling cover is mounted outside the second mold, a storage tank is arranged on one side of the injection molding machine main body, a discharging pipe is fixedly connected to the bottom end of the storage tank, an injection molding pipe is arranged below the storage tank, and a fixing plate is mounted on one side of the injection molding pipe. According to the injection molding machine with the rapid injection molding mechanism, molten liquid is fully stirred through the heating pipe, the stirring motor can be started in the injection molding process, the stirring motor drives the stirring shaft to rotate, the molten liquid can be heated and stirred through the stirring rod outside the stirring shaft and the heating pipe, and the discharging efficiency can be improved through the cleaning and scraping rod; by means of the structure, the function of conveniently keeping the temperature of injection molding melt is achieved, and the problem that the injection molding effect is poor is solved.

The invention discloses a quick ejection mechanism and an ejection method for an injection molding car lamp mold, and relates to the technical field of plastic injection molding, the ejection mechanism comprises: an ejector pin which is arranged in a lower mold and can move up and down, one end of the ejector pin facing a cavity is provided with a sleeve head, and the sleeve head is made of a heat insulation flexible material; a gap is formed between the upper mold core and the upper mold plate, the upper mold plate is provided with a positioning pipe, the upper mold core is provided with a sleeve, the positioning pipe extends into the sleeve, the outer wall of the end, extending to the sleeve, of the positioning pipe is spherical, a supporting piece is arranged in the upper mold plate, and the supporting end of the supporting piece makes contact with the upper mold core and changes the deviation angle of the upper mold core relative to the axis of the injection molding opening. When an injection molding part is ejected, the problem that traces appear on the surface of a vehicle lamp due to the fact that the ejection force of the ejector pin is large is avoided, when demolding ejection is conducted, the ejection force applied to the surface of the vehicle lamp by the ejector pin is reduced, and clamping swing on the top of the vehicle lamp is combined.

The present invention proposes a shoe injection molding device and injection molding method with simple structure, low production cost, improved shoe injection molding efficiency and improved injection molding quality, wherein the shoe injection molding device includes a shoe last and a bottom mold, the upper end surface of the bottom mold is provided with an injection molding groove downward, the shoe last can slide up and down and be arranged above the injection molding groove, the lower end of the shoe last can be embedded in the injection molding groove, the shoe last is provided with an injection molding through hole, the feed inlet of the injection molding through hole is provided on the peripheral side of the shoe last, and the plurality of discharge ports of the injection molding through hole are provided on the bottom surface of the shoe last. The shoe injection molding method includes S1, setting the shoe body and the shoe last; S2, pre-molding the left mold and the right mold; S3, lowering the shoe last; S4, molding the left mold and the right mold; S5, the stabilizing block and the injection molding head clamp the shoe last; S6, performing injection molding; S7, removing the finished shoe.

The invention discloses a spraying forming method for a large-diameter fiber winding shell. The spraying forming method comprises the following steps that (1) a winding core mold is formed and machined; 2) injection molding of heat insulation layers of the front and rear sealing heads; (3) the front and rear end socket heat insulation layers are installed on the winding core mold; 4) winding the winding layer; (5) rotating, curing and demolding the winding layer; (6) the inner surface of the barrel section winding layer is coated with a surface treating agent; (7) spraying and forming the heat insulation layer of the cylinder section; 8) curing the heat insulation layer of the cylinder section; and 9) finishing the heat insulation layer to obtain the shell. The front end socket and the rear end socket are formed through injection, and the forming process is simple; the front end socket and the rear end socket are installed firstly, the winding layer is formed, and finally the cylinder section part is sprayed and formed, so that procedures such as manual surface mounting are replaced, and the production efficiency and the quality consistency are improved; the surface quality of the heat insulation layer formed by adopting the spray forming heat insulation layer is higher, and the heat insulation appearance problem caused by the core mold quality problem is avoided; the novel spraying heat insulation layer is adopted, the ablation rate of the heat insulation layer is lower, and the heat insulation performance is higher.

The invention discloses an injection mold for plastic packaging and processing and a using method, and relates to the technical field of plastic processing. The injection mold comprises an upper injection mold arranged on a material injection assembly; the lower injection mold is arranged in the processing platform; and the cooling unit is arranged in the injection molding lower mold, is used for achieving rapid cooling of the injection molding raw materials and comprises a bearing assembly, a liquid guide assembly and a circulating assembly, the bearing assembly is used for achieving bearing forming of the injection molding raw materials and is matched with the liquid guide assembly to achieve stepped preliminary cooling, and the circulating assembly is matched with the liquid guide assembly to achieve efficient cooling. The injection molding machine has the beneficial effects that cooling water can be automatically injected in advance according to the injection weight while molten materials are subjected to injection molding, front pre-heat dissipation of the molten materials and wrapping of injection molding raw materials are achieved, and the situation of deformation during cooling molding can be avoided in cooperation with the heat dissipation mode of liquid cooling circulation after material injection is completed.

The utility model relates to the field of sealing ring injection molding, in particular to an engine ignition coil cylinder body sealing ring injection molding device which comprises a rectangular supporting table, a supporting frame is fixedly connected to the top of the supporting table, a rectangular groove is formed in the supporting table, a first driving motor is installed on one side of the supporting table, and a second driving motor is installed on the other side of the supporting table. The bottom of the supporting table is fixedly connected with supporting legs. When the device is used, the bidirectional screw can be driven by the third driving motor to rotate, the bidirectional screw drives the movable plates to get close to each other along the second rectangular opening, the movable plates drive the protective covers to get close to each other, the protective covers are combined when the device runs, and meanwhile, the injection molding condition of the internal sealing ring can be conveniently observed through the detection glass on the protective covers; and the protective cover can ensure that the temperature of the spraying mechanism is stable during injection molding, the time required by injection molding is shortened, and the working efficiency is high.

The present invention discloses a hot nozzle system for injection molding a cylindrical rod product, comprising a nozzle core connected to a flow channel, and at least two glue inlets connected in parallel to the flow channel are formed on the nozzle core, and the glue inlets are symmetrically arranged with the axis of the cylindrical rod product as the center. The hot nozzle system of the present invention converts the production of cylindrical rod products from cold runner to hot runner production, reduces the waste of production raw materials, simultaneously reduces the injection molding cycle, improves the injection molding efficiency, and greatly improves the production efficiency of marker pen rods.

The utility model discloses a slide block glue feeding structure of a plastic mould, which comprises a diving gate assembly and a slide block of the mould, the diving gate assembly comprises a diving port and a runner, the runner is arranged in an upper mould of the mould, the diving port is arranged in the slide block, and when the mould is closed and the slide block enters a core, the runner is arranged in the slide block. The diving opening is communicated with a cavity of the injection mold, a connecting section is arranged between the diving opening and the runner, the end, away from the cavity, of the diving opening is communicated with the end, located in the mold, of the runner through the connecting section, and the connecting section is vertically arranged; the diving opening is obliquely arranged relative to the horizontal plane, and the included angle between the diving opening and the connecting section is an obtuse angle. According to the utility model, the arrangement of cold runners is reduced, the length of the whole runner is shortened, and the forming period is shortened, so that the efficiency is improved.

The application discloses a kind of injection molding equipment of plastic shell, including processing table, injection device, first mould, second mould, support plate, multiple embedded components, multiple push components and ejection assembly, first mould and second mould are oppositely arranged above the processing table, and membrane cavity is equipped between first mould and second mould;Injection device is arranged on the sliding table of first sliding table module, the inner wall of second mould is equipped with multiple positioning columns, the sliding table of second sliding table module is equipped with connecting plate, multiple embedded components are arranged on the connecting plate, and multiple embedded components are connected by first transmission component between multiple embedded components, the upper surface of processing table is equipped with box, push component is arranged inside the box, and multiple push components are connected by second transmission component between multiple push components, ejection assembly is arranged outside second mould.

This utility model provides an in-mold hot-cutting device for injection molding machines, including a fixed mounting plate and an injection mounting plate. The fixed mounting plate is connected to a mold parting assembly and has a push groove. The mold parting assembly is connected to a mold component, which includes a mold assembly and an injection assembly. The injection assembly includes an injection mounting plate, which is rotatably connected to an injection mold plate. A hot-cutting lever is inserted into the side of the injection mounting plate. By causing the injection mounting plate and the injection mold plate to rotate relative to each other, the injection gate is cut off, realizing in-mold hot-cutting technology. This separates the injection-molded model from the injection runner. The central mold parting rod can push out the injection runner, and the mold parting push rod can push out the injection-molded product. This reduces the steps required to separate the runner after injection molding, simplifies the workflow, improves injection efficiency, does not affect the product appearance quality, and significantly reduces the product scrap rate.

The utility model discloses a mold structure for a small water gap eccentric thin wall in a climbing injection molding process, which comprises a base, and a lower mold seat is fixedly arranged in the middle of the top end of the base. Smooth flowing of plastics can be ensured, uneven flowing can be reduced, defects caused by uneven flowing in the injection molding process are avoided, the climbing part is arranged in the flow guide channel, smooth flowing of plastic materials in the mold can be ensured, the problems of uneven cooling and bubbles caused by flow speed changes are avoided, and the injection molding quality is improved. The multiple eccentric small water openings are formed, multi-section injection can be conducted at the same time, then the injection molding efficiency is improved, an air cooler is powered on to generate cold air, the cold air is guided into a first annular cooling groove and a second cooling groove through an air outlet pipe, then materials in a forming groove can be evenly cooled, and therefore the cooling time is shortened, and the injection molding efficiency is improved. The working efficiency is improved.

The invention belongs to the technical field of injection molding devices, and particularly relates to a fender injection molding device which comprises a machining platform, an injection molding machine is fixedly connected to the upper end of the machining platform, a lifting plate is arranged above the machining platform in a sliding mode, a fixed mold is fixedly connected to the lifting plate, and a movable mold is clamped to the fixed mold; the end, close to the injection molding machine, of the fixed mold is fixedly connected with a feeding hose communicating with the output end of the injection molding machine. And the adjustable vibration mechanism is arranged at the position, located below the lifting plate, of the machining platform and used for introducing vibration effects of different amplitudes in the injection molding process. By arranging the adjustable vibration mechanism, in the injection molding process of the fender, when molten plastic enters a thick or complex part, the vibration amplitude is increased, when the molten plastic enters a thin or simple part, the vibration amplitude is reduced, and the molten plastic is prevented from flowing too fast.

The utility model relates to the technical field of injection molding machines, and provides an injection molding machine for efficient injection molding of a top cover plate of a washing machine, which comprises a bottom plate and a U-shaped plate I fixedly connected to the top of the bottom plate. The controller controls the second electric telescopic rod to start and stretch, the first movable plate and the hollow ejector rod are pushed to move upwards, the top cover plate of the washing machine is loosened to a certain degree, then the controller controls the air pump to start, the air pump conveys air into the annular pipe, the air passes through the telescopic hose, the hollow ejector rod and the air hole in sequence, and the air is conveyed into the annular pipe. The top cover plate of the washing machine is loosened from the lower mold under the cooperation of the air pressure, so that the condition that the top cover plate of the washing machine is tightly attached to the lower mold and is difficult to demold can be avoided, the demolding time is shortened, and the demolding efficiency is improved. Therefore, the injection molding efficiency of the washing machine top cover plate is improved.

This utility model provides an eccentricity detection device and an injection mold for an air conditioning transmission assembly formed therefrom. The eccentricity detection device includes: a first detection component comprising M first sensors, which are spaced apart along the length of the rod; the M first sensors are located on a first detection line; a second detection component comprising N second sensors, which are spaced apart along the length of the rod; the N second sensors are located on a second detection line; the first and second detection lines do not coincide; M and N are both integers greater than 0; and a signal output component connected to both the first and second sensors. This application can determine whether the rod has experienced axial deviation by measuring the distance between the rod and the first or second sensor; the sensors of this application have a small footprint, are simple to operate, and can improve the efficiency and accuracy of rod axiality detection.

This invention belongs to the field of mold manufacturing technology, specifically an over-injection correction system and method for injection molds. The system includes a lower base plate and an upper base plate of the injection mold. A support pad is symmetrically fixed to one side of the lower base plate, and a temperature control base is fixed to one side of the support pad. A lower mold plate is mounted on the middle surface of the temperature control base, and a correction mechanism is installed inside the temperature control base. An injection mechanism is mounted on the outer surface of the lower mold plate. A material conveying cylinder is mounted on one side of the upper base plate, and a uniform feeding mechanism is installed inside the material conveying cylinder. This over-injection correction system and method for injection molds works by exposing the discharge port of the discharge pipe at the upper end of one side of the correction groove during the downward movement of the lower mold plate due to over-injection. Excess material is then discharged through the inclined discharge pipe to the connecting pipe on the outside. Furthermore, a pressure relief valve releases pressure inside the injection cavity, thus meeting the injection requirements.

The utility model discloses a fixed nut's automatic shedding mould relates to nut injection molding field, include: back template, injection demoulding mechanism, this mechanism sets up in back template top. The utility model discloses a injection demoulding mechanism's effect can injection molding fixed nut, and can the nut of injection molding that finishes is handled fast demolding, in the process of pushing front template to back template, front template drives lower pressing plate to remove, and lower pressing plate drives two inclined guide pillars to remove, and makes two side templates move on the track oppositely, after sticking side template, extruding plate is pressed in the outside, and adaptive pressure plate is pressed in the top, and through the injection port on front template adds raw materials, after nut forming, the front template moves from back template injection cavity board one side outward, under the action of first spring, applies reverse thrust to injection cavity board, and the nut that injection molding that finishes is demoulded, has the effect that the nut that injection molding that finishes is handled fast demolding, improves the injection efficiency of fixed nut.

The utility model discloses a kind of injection mould of quick cooling forming, comprising: the base of ejection mechanism is installed in inside;Lower mould, lower mould is placed in the top of the base, the middle part of the lower mould is fixedly connected with mould core, the bottom of the mould core is equipped with multiple circulating water holes;Upper mould, upper mould is placed in the top of the lower mould, the bottom of the upper mould is provided with the cavity of cooperation with mould core;The beneficial effects of the utility model are: through the circulating water hole of mould core bottom and the water delivery hole on cold water plate, a spiral water cooling system of water diversion is formed;Water is introduced into the circulating water hole in the bottom of mould core by cold water pin, so that cooling water can be directly contacted with mould core, efficient heat exchange is realized, so that mould core temperature is quickly reduced, and injection molding efficiency is improved.

The present invention relates to the field of injection molding technology, and discloses an energy-saving injection molding machine shooting platform, including an injection component, a gear box and a hydraulic system. The injection component includes two groups of injection components and an injection nozzle arranged between the output ends of the two groups of injection components. The outsides of the two groups of injection components are provided with heating elements. The gear box is used to drive the push screw in the injection component to rotate, and the hydraulic system is used to drive the push screw in the injection component to move. In this solution, the two groups of injection components can be used alternately, and the injection molding efficiency can be improved by cooperating with the mold of the injection molding machine. The oil cylinder and the push screw in the hydraulic system are located on the same straight line. Therefore, when the oil cylinder drives the push screw to move, there is no bending moment problem between the two.

This utility model discloses a nylon-reinforced cement nail mold and cement nail, relating to the field of injection molding technology. The mold includes a lower mold and an upper mold: the lower mold has nail tip positioning holes to fix the nail tip, and the upper mold has a nail head positioning groove on the top. After the mold is closed, an annular cavity and a recessed cavity are formed. Nylon material is synchronously filled through an integrated flow channel, forming a mechanical interlocking structure. The four corner guide pillars and guide sleeves of the mold adopt a conical fit for self-alignment. The ejection mechanism of the lower mold pushes the nail tip through a conical ejector pin. The bottom of the annular cavity and the side wall of the recessed cavity are provided with multi-stage injection channels, with micropores distributed radially and spirally to uniformly fill the material. The pressure plate of the upper mold presses the nail head through hinges and elastic fasteners. The product produced using this utility model has both high strength and impact toughness, effectively improving fastening and seismic performance, solving the problems of easy falling off and insufficient strength of traditional cement nails. It is suitable for the field of building decoration and has the advantages of compact structure and stable performance.

The application provides a rotary feeding mechanism, which comprises a bottom plate, a machine arm and a hydraulic cylinder, the machine arm is fixed on one side of the upper surface of the bottom plate, the hydraulic cylinder is fixed on the upper end of the machine arm, further comprises a supporting rotating rod, a rotating disc, a lower mold, an upper mold, an extension slot, an ejection rod, a rotary feeding mechanism, an ejection mechanism and a discharging mechanism, the supporting rotating rod is rotationally connected to the middle part of the upper surface of the bottom plate away from the machine arm through a bearing, the rotating disc is fixed on the top of the supporting rotating rod, four lower molds are equidistantly embedded and fixed on the surface of the rotating disc, four mold cavities are arranged on the surface of the lower mold, and the upper mold is fixed on the extension end of the hydraulic cylinder; the application does not need to sequentially carry out feeding and discharging work after completing injection molding, thereby greatly improving the injection molding efficiency of the chip, thereby greatly improving the production efficiency, and facilitating the use of enterprises.

The present invention relates to the technical field of injection molding machines, and discloses an injection molding machine clamping mechanism that adaptively enhances supporting force, comprising a guide column, a fixed mold base, a movable mold base and a hydraulic base are arranged on the guide column, a hydraulic cylinder is arranged on the hydraulic base, a connecting base is arranged at the output end of the hydraulic cylinder, a first connecting shaft is arranged on the connecting base, a connecting rod component is arranged between the first connecting shaft, the hydraulic base and the movable mold base, the connecting rod component comprises a connecting rod member, the connecting rod member comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is movably connected to the first connecting shaft, and the other end is provided with a second connecting shaft, the second connecting shaft is parallel to the first connecting shaft, one end of the second connecting rod is movably connected to the second connecting shaft, and the other end is hinged to the movable mold base, one end of the third connecting rod is movably connected to the second connecting shaft, and the other end is hinged to the hydraulic base, and a locking mold assembly is arranged between the movable mold base and the fixed mold base.

The utility model relates to the technical field of injection molding process especially is used to a front mould oblique position structure for injection mould, including the front mould fixed plate, the water gap board, the backing plate, the front mould frame and the front mould kernel that set up in proper order, still include the front mould insert piece and the row position guide pillar, the front mould insert piece is worn and is set in the front mould kernel, and under the guidance of the mould kernel inclined plane of front mould kernel, oblique inserts injection molding cavity, thereby injection molding forms the oblique recess of plastic part, the one end of row position guide pillar is fixedly connected in the water gap board, its other end passes through the backing plate and the front mould frame, and with the front mould insert piece forms the lock joint of movable, makes row position guide pillar drive front mould insert piece and exits from the oblique recess. Above all, the utility model through the lock joint and water gap board linkage drive of ingenuity, has simplified the mould structure significantly, has improved injection molding efficiency, has guaranteed the plastic part forming quality. Its modular design and high performance price ratio make it easy to manufacture, maintain and market promotion.

The injection molding device comprises a fixed injection molding mold, a movable injection molding mold is connected to the top end of the fixed injection molding mold in a clamped mode, an injection molding nozzle is fixedly embedded in the upper surface of the movable injection molding mold, and two electric push rods are fixedly connected to the upper surface of the movable injection molding mold; a containing groove is formed in the bottom face of the fixed injection mold, and the inner top wall of the containing groove is fixedly connected with a circulating cooling pipe. According to the device, through the arrangement of the injection molding fixed mold, the supporting plate, the electric telescopic rod, the jacking rod and the jacking plate, the electric telescopic rod can work to drive the jacking plate to move up and down, jacking demolding of an injection molding waterproof plate is achieved, and through the arrangement of the circulating cooling pipe, the connector and the control water valve, external circulating cooling water can be connected; water cooling of the injection molding fixed mold is achieved, the adhesion phenomenon of the waterproof plate is reduced, demolding of the injection molding waterproof plate is assisted, rapid demolding operation of the injection molding waterproof plate is facilitated, and the injection molding efficiency of the waterproof plate is effectively improved.

This application belongs to the field of injection molds, specifically disclosing an injection mold structure and injection method. It includes a first mold and a second mold adapted to each other, with a molding cavity between the first and second molds. A mold-changing cavity is formed on the first mold, and a guide groove is provided between the mold-changing cavity and the molding cavity, connecting them. The direction of the guide groove is perpendicular to the direction of the mold-changing cavity and the molding cavity. A plurality of molding inserts are arranged along the direction of the guide groove within the mold-changing cavity. The injection mold structure also includes a first driving assembly and a second driving assembly disposed on the first mold. The output end of the first driving assembly is located in the mold-changing cavity. The first driving assembly drives a molding insert through the guide groove into the molding cavity and back into the mold-changing cavity. The second driving assembly drives the molding insert to move within the mold-changing cavity. This application has the effect of improving injection efficiency by increasing the efficiency of molding insert replacement and shortening the injection cycle.

The utility model discloses a continuous feeding injection molding device, which belongs to the technical field of wire injection molding and comprises a base plate and a double-station continuous clamping and moving mechanism. A double-station continuous clamping and transferring mechanism is mounted on the rear side of the upper end of the base plate; the double-station continuous clamping and material moving mechanism comprises a double-rotor linear module, a synchronous moving and clamping assembly and a moving assembly. An injection molding machine body is fixedly mounted in the middle of the front side of the substrate; an upper mold is fixedly mounted at the movable end of the injection molding machine body; an injection molding hole is formed in the upper mold; the lower die is fixedly installed on the front side of the base plate. By means of the mode, continuous injection molding operation on the wire can be achieved, automatic feeding and discharging of the wire are achieved, the extra workload of manual feeding and discharging is reduced, accurate alignment inserting connection of a data line port and an embedding mold is guaranteed through the wire port inserting and inserting mechanism, and the production efficiency is improved. And skewing of data line port pins caused by deviation during manual plugging is avoided.

The utility model relates to an efficient energy-saving plastic bottle blank injection molding machine, which comprises a shell covered on the periphery, a feeding mechanism and an injection molding cavity are arranged in the shell, a mold closing mechanism is arranged in the opposite direction of the injection molding cavity and is used for injection molding of a plastic bottle blank, the feeding mechanism comprises a first motor arranged at the head end of the shell, and a power output end of the first motor is sleeved with a first belt wheel; the first belt wheel is connected with an adapter pipe, a plurality of heating rings are sleeved on the adapter pipe to heat bottle blank raw materials, a rotatable feeding paddle is screwed in the adapter pipe, and the tail end of the feeding paddle is connected with an injection molding cavity; the mold closing mechanism comprises a second motor arranged at the rear end of the shell, the second motor is connected with a lead screw, a mold closing plate arranged opposite to the injection molding cavity is arranged at the tail end of the lead screw, and mold closing-demolding is achieved along with driving of the lead screw to advance and retreat; the production efficiency is improved and the energy consumption is reduced through the optimal design of links such as feeding, heating and mold closing.