378results about How to "Improve injection molding efficiency" patented technology

The present invention discloses a core pulling mechanism of an Audi car door cover plate injection mold. The core pulling mechanism comprises a first cavity slider (1), a second cavity slider (2), a top hole core slider (3), a moving mold core (4) and a fixed mold (05). The core pulling mechanism of the present invention adopts the following technical scheme that: the cavities are arranged on thefirst cavity slider and the second cavity slider, wherein the cavities provide the outer shaped surface for the shaped product, and the outer shaped surface of the shaped product requires the transverse core pulling; the first cavity slider and the second cavity slider are arranged on the moving mold; the top hole core slider of the top hole of the shaped product is arranged on the fixed mold; with mold opening and oblique guide pillar driving, the top hole core slider is longitudinally pulled while the second cavity slider is transversely pulled, then the first cavity slider is transversely pulled with the oil cylinder; finally the product is ejected from the moving mold core by an ejection rod. With the technical scheme of the present invention, the problems and the defects of complex mechanism, large volume, high cost, more failures and low efficiency are overcome, the purposes of mechanism simplifying, volume reducing, cost reducing, reliable operation and efficiency improving of the Audi car door cover plate injection mold are achieved.

The invention discloses an injection molding machine nozzle with a self-cleaning function. The injection molding machine nozzle comprises a nozzle body and a piston, a piston is arranged inside the nozzle body, and a conical plug is welded to one end of the piston, and the other end of the conical plug is connected with an inserting block in a welded mode. According to the maching nozzle, the conical plug and the piston are located inside the nozzle body, the size of the piston is equal to the internal size of the nozzle body, a remaining injection molding material inside the nozzle body can be pushed out of the nozzle body in a forward propelling process of the piston, the effect of scraping residual materials inside the nozzle body is achieved, and a self-cleaning function of the nozzlebody is enabled to be finished; the size of the conical plug is equal to the internal size of one end of the nozzle body, when the piston is conveyed to an end part, the conical plug is attached to the inner wall of one end of the nozzle body, the materials inside the nozzle body can be completely extruded out, so that no material is left in the nozzle body, blockage is avoided, the workload of manual cleaning of the nozzle is reduced, and the production efficiency is improved.

The invention relates to the technical field of high-speed injection molding machines, in particular to a hydraulic control system of a high-speed injection molding machine. The hydraulic control system of the high-speed injection molding machine comprises a low-pressure large-flow pump, a high-pressure small-flow pump, a check valve, a hydraulic control sequence valve, an overflow valve, a three-position four-way reversing valve, a first hydraulic control check valve, a second hydraulic control check valve, a hydraulic cylinder, an oil groove and multiple energy accumulators. The hydraulic control system of the high-speed injection molding machine is simple in structure and convenient to operate, lowers cost and improves the work efficiency. Through the double-pump oil supply manner, the injection molding time can be shortened, and the injection molding efficiency is improved. Besides, through cooperative use of the small-flow hydraulic pump and the energy accumulators, rapid movement of an executing element can be achieved.

The invention relates to a plastic pressure reducer which comprises a shell, a cover, an air inlet pipe, an air outlet pipe and a throttling valve. The shell and the cover are made of modified polyformaldehyde engineering plastic which comprises, by weight, 80-100 parts of polyformaldehyde, 5-15 parts of flexibilizers, 3-5 parts of wear-resisting agents, 5-8 parts of compatilizers, 3-5 parts of fire retardants, 3-5 parts of antistatic agents and 5-10 parts of stabilizing modifying agents. The manufacturing method includes the steps of firstly weighing the raw materials, drying the polyformaldehyde, evenly mixing the raw materials, adding the raw materials into a pre-heated charging barrel of a high-speed injection molding machine, heating the raw materials to be in the fusing state, injecting the fused raw materials into hot moulds of the shell and the cover in two times through nozzles of hot runners, manufacturing the shell and the cover after pressure maintaining, cooling molding and mould opening are carried out, and finally conducting assembling to form the plastic pressure reducer. The shell and the cover of the manufactured plastic pressure reducer are made of the modified polyformaldehyde engineering plastic, the modified polyformaldehyde engineering plastic is low in cost and easy to obtain, and the plastic pressure reducer is easy to machine, light in weight, low in cost, good in performance and long in service life.

Disclosed is a process for producing a thermoplastic copolymer, which comprises step of supplying a monomer mixture (a) to a loop reactor continuously to produce a copolymer (A), the monomer mixture (a) comprising an aromatic vinyl monomer (a1), a vinyl cyanide monomer (a2) and an N-substituted maleimide monomer (a3). The process enables the production of a thermoplastic copolymer which has an excellent balance among physical properties such as heat resistance, color and flow property, reduces the amount of bleeding that may cause mold staining during molding processing and has excellent handleability and productivity.

The invention discloses spray molding equipment. The spray molding equipment comprises a machine body. The machine body is internally provided with an spray cavity. The spray cavity is internally provided with a supporting plate. The supporting plate is internally provided with a groove with an upward opening. A carrying plate is rotatably arranged in the groove. An article to be sprayed is placedon the carrying plate. The lower end face of the carrying plate is fixedly provided with a spline shaft in spline connection with a rotating device. Lifting grooves with opposite openings are formedin the spray cavity in bilateral symmetry in a communication mode. The spray molding equipment is simple in structure and convenient to operate, completes rotary spray through lifting components whilemaking the article to be sprayed to rise so that the whole body of the article to be sprayed can be sprayed comprehensively. A horizontal spraying device moves horizontally while conducting sprayingfront and back so as to achieve the uniform spraying effect; secondly, through comprehensive rotary spraying and horizontal spraying on the upper surface, the spraying time can be shortened, and the spraying molding efficiency of the spray molding equipment can be improved. The spray molding equipment is small in occupied area and convenient to operate and overhaul.

The invention discloses a wheel disc type injection mold containing vertical screw injection molding machine. The wheel disc type injection mold containing vertical screw injection molding machine comprises an injection molding machine base. The injection molding machine base is fixedly installed on the ground and provided with a material pushing heating mechanism, a feeding mechanism and an injection mold containing mechanism. The injection mold containing mechanism is provided with an injection mold cooling mechanism and a manipulator for automatically controlling blanking of a finished injection mold. The injection molding machine base is provided with a controller. The controller is provided with an industrial electricity socket, a capacitive display screen and a PLC system. The wheel disc type injection mold containing vertical screw injection molding machine has the beneficial effects of being simple in structure and high in practicability.

The invention discloses a multi-station injection molding machine which is suitable for the technical field of injection molding machines. The multi-station injection molding machine comprises a rack, a lower die plate arranged on the rack, a rotating mechanism for driving the lower die plate to rotate, an upper die plate located above the lower die plate, a lifting mechanism for driving the upper die plate to ascend and descend and multiple injection devices arranged above the upper die plate. The upper die plate is provided with multiple fixed die mounting positions. The lower die plate is provided with multiple movable die mounting positions corresponding to the fixed die mounting positions in rotation respectively. According to the multi-station injection molding machine, the injection devices are arranged above the upper die plate, products in different colors made of different materials can be obtained in an injection molding manner; and multiple movable dies can be mounted at the same time through the movable die mounting positions, and multiple processes can be conducted at the same time, so that the whole injection molding period is shortened, injection molding efficiency is improved, a great amount of time and manpower and a great number of material resources are saved, injection molding cost is lowered greatly, input cost is reduced, and the competitiveness of the products in the market can be improved.

The invention relates to the technical field of plastic injection molding, in particular to a negative pressure precision injection molding method for mobile phone plastic parts. The method includes the steps that air in a forming mold cavity is sucked out to form negative pressure through an air compression system at first, and then a plastic raw material in the molten state is injected to the cavity to form a product; and in the demolding process, gas is blown into the forming mold cavity through the air compression system, and thus the product can be separated from a fixing mold plate. By means of the negative pressure precision injection molding method for the mobile phone plastic parts, injection molding can be conducted on the cavity in the negative pressure state, the cavity can be filled with the injection molding plastic raw material quickly, and injection molding efficiency is high; moreover, the phenomenon that oxygen in the cavity is reacted with the plastic raw material to burn the plastic raw material is avoided, the performance, surface quality and precision of the mobile phone plastic parts are improved, and injection molding of small-size precision thin-walled products can be achieved; and the products can be blown out in a positive pressure gas blowing mode, the products can be prevented from being attached to the fixing mold plate, product deformation and damage are also prevented, and demolding is easy.

The invention discloses an automatic insert manipulator for an injection molding machine. The automatic insert manipulator comprises a rack. A horizontal guide rail, a horizontal moving platform, a horizontal drive mechanism, a lifting guide rail, a lifting platform and a lifting drive mechanism are arranged on the rack. Meanwhile, a jig used for mounting an insert on an injection molding die of the injection molding machine is arranged on the lifting platform. According to the automatic insert manipulator for the injection molding machine, by the adoption of the structure, the lifting platform can drive the jig to move freely along the horizontal guide rail and the lifting guide rail, so that the jig can be used for mounting the insert on the die of the injection molding machine instead of workers; and the labor intensity of the workers is lowered greatly, meanwhile it can be avoided that the workers are clamped by the injection molding machine and hurt, and the personnel safety of the workers is guaranteed.

The invention provides an efficient injection molding machine. The efficient injection molding machine comprises an injection molding unit and a mold unit. The injection molding unit comprises a fixedframe, a telescopic piece and an injection molding head; and the mold unit comprises a rotary table, a plurality of forming molds and temperature control assemblies. Each forming mold comprises a lower mold and an upper mold, wherein the lower mold is fixedly connected with the rotary table, and the upper mold is movably connected with the lower mold; and each upper mold is provided with an injection molding hole, and each lower mold is provided with an injection molding cavity and a temperature control cavity for preheating and cooling the injection molding cavity. Each temperature control assembly comprises a cool-warm air heating radiator, an air inlet pipe and an air outlet pipe, and the air inlet pipes and the air outlet pipes communicate the cool-warm air heating radiators with thetemperature control cavities. The fixed frame is further provided with a positioning assembly for ensuring the alignment of the injection molding holes and the injection molding head. According to theefficient injection molding machine, the forming molds are arranged on the rotary table, so that the injection molding head can continuously work, and the injection molding efficiency is improved; and the forming molds communicate with the cool-warm air heating radiators correspondingly, hot air or cold air is conveyed into the molds through the cool-warm air heating radiators, so that the multiple forming molds are preheated or cooled at the same time, the forming period is shortened, and the forming efficiency is improved.

The invention discloses an automobile grille machining mold which comprises a machine frame. An upper mold base is arranged at the upper end inside the machine frame. A fixed forming mold is arranged on the upper mold base. A lower mold base is arranged at the lower end of the machine frame. A movable forming mold mutually matched with the fixed forming mold is arranged on the lower mold base. A grille cavity is formed between the movable forming mold and the fixed forming mold. A jacking air cylinder is arranged at the lower end of the machine frame. A piston rod of the jacking air cylinder penetrates through the machine frame and the lower mold base and is connected with the movable forming mold. Injection molding channels are symmetrically arranged in the portions, at the upper ends of the two sides of the grille cavity, inside the fixed forming mold. The injection molding channels are connected with an injection molding device. A plurality of sintered metal block storage grooves are evenly formed in the portion, at the upper end of the grille cavity, of the fixed forming mold. Sintered metal blocks are embedded in the sintered metal block storage grooves. A main exhaust channel is arranged at the upper end of the fixed forming mold in a penetrating mode.

The invention relates to a fast injection molding system, used for manufacturing an injection molding part so as to heat a die by a movable heating element. Before injection liquid is injected into a die cavity of the die, the heating element is moved and contacted with the die, thereby heating the die to a working temperature. After the temperature of the die achieves the working temperature, the heating element is moved and detached from the die so as to enable high temperature of the heating element to continuously heat the die. When a cooling fluid source cools the die, high temperature of the heating element can not influence the cooling efficiency. Because the heating element can not influence the subsequent cooling process, the heating power of the heating element can also be dramatically promoted, thereby accelerating the velocity of injection molding.

The invention provides a high-precision and high-efficiency injection molding machine. The high-precision and high-efficiency injection molding machine comprises a machine body and further comprises amovable mold plate, a fixed mold plate and an injection mechanism. A plurality of pull rods are mounted between the movable mold plate and the fixed mold plate. A combined contracting brake mechanismcorresponding to the pull rods is mounted on the movable mold plate. A nitrogen auxiliary injection device connected with the injection mechanism is mounted at the side end of the machine body. During mold closing, the combined contracting brake mechanism locks the pull rods. the combined contracting brake mechanism comprises a contracting brake cylinder and a plurality of mold locking pistons. The contracting brake cylinder is connected with one mold locking piston. A piston linkage connecting rod is eccentrically hinged between the two adjacent mold locking pistons. The high-precision and high-efficiency injection molding machine provided by the invention is high in mold replacing speed, good in combined mold locking effect and high in reliability and safety coefficient. The whole high-precision and high-efficiency injection molding machine is high in starting speed, stable in injection rate, high in repeating precision, large in mold containing space, high in production efficiencyand stable and reliable in operation.

The invention discloses a refrigerator drawer injection mold. The refrigerator drawer injection mold comprises a fixed bottom plate and a movable top plate. Guide columns are welded to the four corners of the fixed bottom plate correspondingly. The movable top plate is movably mounted on the four guide columns. A lower mold body is arranged on the fixed bottom plate. An injection mold cavity is formed in the middle of the lower mold body. A first storage groove is formed in the center of the bottom of the injection mold cavity. A top extension plate is movably mounted in the first storage groove. A piston rod of a top extension air cylinder is fixedly connected with the bottom of the top extension plate. The top extension air cylinder is fixedly mounted to the outer side of the bottom of the fixed bottom plate. An upper mold body is arranged at the position, over the lower mold body, of the movable top plate. An inner mold body is arranged at the position, close to the lower mold body,of the upper mold body. The refrigerator drawer injection mold is novel in design, simple in structure and convenient to use, products can be demolded rapidly, deformation and cracking caused by bonding of the products and the mold are avoided, and the injection efficiency of the mold is improved.

The invention discloses an automatic collection device for injection products. The automatic collection device comprises a collection box, a base plate and a plurality of springs, wherein one end of each of the multiple springs is detachably arranged on the bottom end face of the collection box at intervals, and the other end of each spring is fixedly connected to the top surface of the base plate; sliding rollers are arranged on the bottom surface of the base plate; a supporting column is vertically arranged on the base plate; a sensor is arranged at the top end of the supporting column, is electrically connected with driving equipment, and can sense the injection product falling into the collection box and switch on the driving equipment to drive the sliding rollers to roll; meanwhile, a timer connected with the sensor starts to count the time; and when the timer reaches a preset time value, the driving equipment is switched on so as to drive the sliding rollers to roll towards the opposite direction. The device can uniformly distribute and stack the injection products falling into a plastic box quickly and conveniently, so that damage, which is caused by falling, to the products can be avoided, and the production cost is saved.

The invention relates to the technical field of plastic processing, and discloses an injection molding device using plastic melting for continuous pressure applying. The injection molding device comprises a processing machine, the bottom of the interior of the processing machine is fixedly connected with an air pressure base, the interior of the air pressure base is movably connected with a returnspring, an injection molding table is movably connected above the return spring, an air pipe is movably connected to the right side of the air pressure base, a plastic melting machine is movably connected to the upper right portion of the interior of the processing machine, a pressurizing chamber is movably connected above the plastic melting machine, and an injection molding machine is movably connected to the upper left portion of the interior of the processing machine. When a locking lever is moved out of a plastic filling valve, a plastic filling slider moves upwards under the elastic force effect of the plastic filling spring, a plastic filling tube is blocked, and plastic filling is prevented from being continuously carried out, so that the effect of controlling plastic filling of the plastic filling tube is achieved, and the condition that plastic filling is carried out in the process of avoiding plastic filling, and consequently melted plastic flows back into the plastic melting machine is avoided.

The invention discloses a device and method for manufacturing a plaster mold. The device comprises a mold core, a mold sleeve sleeving the mold core, a chassis and a banding device, wherein a molding cavity is formed between the mold sleeve and the mold core, both the bottom of the mold sleeve and the bottom of the mold core are fixed on the chassis, a longitudinal opening is formed in the mold sleeve from the axial direction of the mold core, and the banding device is used for banding the mold sleeve. The method sequentially comprises the steps of smearing a mold releasing agent, assembling the device for manufacturing the plaster mold, blocking up periphery gaps of the device for manufacturing the plaster mold, preparing calcium plaster, and molding the plaster mold. By using the device and the method, the manufacturing efficiency of the plaster mold can be increased, the use level of plaster powder can be lowered, and the manufactured plaster mold can be used for greatly increasing the grouting molding efficiency of ceramics and reducing subsequent workloads of production of the ceramics.

The invention provides a combined type small reel device. An outer sleeve is arranged at the center of the small reel; the small reel device is also provided with an inner shaft sleeve composite member; the inner shaft sleeve composite member is provided with an axial positioning part and a protective jacket; the protective jacket is detachably clamped between one sleeve body and the outer sleeve and rotates synchronously with the sleeve body; the protective jacket includes an opening which is convenient for an axial positioning component to ingress and egress; crosspieces on the small reel are composed of four equal sections along the circumference of the small reel; each equal section is provided with a symmetric crosspiece and is located at the middle position of the section; the crosspiece located at the right side of the symmetric crosspiece and the crosspiece located at the left side of the symmetric crosspiece are symmetric; the arc peaks of the crosspieces on the small reel are located at the same circumference; the crosspieces of adjacent equal sections are symmetric in shape. The combined type small reel device guarantees manufacturing convenience in the opening-mould injection molding manner of the small reel, enables the small reel to be assembled and disassembled easily, enables abraded portions to be replaced independently, saves cost and avoids waste.