275results about "Moulding machine components" patented technology

The utility model relates to the technical field of molding machines, and provides a cleaning device of a vertical molding machine for well lid machining. Comprising a vertical molding machine base body, a hydraulic cylinder fixedly mounted at the top of the vertical molding machine base body, an upper pressing plate fixedly mounted at the bottom end of the hydraulic cylinder, a lower pressing plate fixedly mounted on the vertical molding machine base body under the upper pressing plate, and a control panel fixedly mounted on one side of the vertical molding machine base body. By means of the technical scheme, the problems that in the prior art, the output end of a motor is used for transmission, a driving roller on a sweeping assembly in a bearing frame is driven to rotate, and under transmission of the driving roller, a transmission belt as well as a scraper and a sweeping brush on the outer surface of the transmission belt can be driven to move synchronously are solved; scraping plates can make contact with sand grains on the surfaces of the upper pressing plate and the lower pressing plate and effectively scrape the sand grains, meanwhile, cleaning brushes can further clean the surfaces of the upper pressing plate and the lower pressing plate where the sand grains are removed, and meanwhile the cleaned sand grains are swept into an excess material collecting box to be stored.

The invention relates to the field of sand mold 3D printers, in particular to a 3D printer two-way sand paving device which comprises a sand conveying device, a vibration device, a main sand scraping plate, an auxiliary sand scraping plate and a sand discharging plate which are arranged on a sand paving device cross beam, the sand conveying device fills a sand storage bin with sand entering from a sand adding opening, and the main sand scraping plate and the sand discharging plate are arranged in a staggered mode. After sand falls from the sand storage bin, a sand stacking slope is formed between the sand discharging plate and the main sand scraping plate, the vibration device drives the sand storage bin, the main sand scraping plate and the auxiliary sand scraping plate to vibrate through vibration to achieve uniform sand paving, and a connecting assembly is arranged between the main sand scraping plate and the auxiliary sand scraping plate. According to the bidirectional sand paving printing device of the 3D printer, the structure is simple, cleaning is convenient, rapid bidirectional sand paving is achieved under the condition that one sand discharging opening is used, the sand paving efficiency is doubled compared with one-way sand paving, the sand surface is rapidly solidified in combination with the heating device, the overall printing speed is increased, and the printing efficiency is improved. And meanwhile, the situation that printed products are poor due to insufficient curing can be reduced, and the percent of pass of the printed products is comprehensively improved.

The invention relates to the technical field of investment mold shell casting, in particular to an investment mold shell casting system which comprises a rack, a slurry barrel, a roasting furnace, a cooling barrel and a slag collecting barrel are sequentially installed on the rack in the clockwise direction, and multiple sets of regularly-distributed elastic striking rods are installed on the inner wall of the slag collecting barrel. A loading and unloading station is arranged at the position, corresponding to the position between the slurry barrel and the slag collecting barrel, of the machine frame, a casting frame is installed on the machine frame in a liftable mode, a transmission unit is arranged on the casting frame, and the transmission unit is in transmission connection with a rotating station frame capable of periodically rotating by 72 degrees and a rotatable transmission gear ring. The casting equipment has the beneficial effects that casting links such as ceramic slurry coating, roasting, cooling and slag collecting are integrated into the same equipment, and the orderly circulation of a parison among the links is realized through the slurry barrel, the roasting furnace, the cooling barrel and the slag collecting barrel which are sequentially arranged on the rack in the clockwise direction and the rotary station frame capable of periodically rotating.

The utility model relates to a through-type drawing device for a plurality of large iron molds with different cavities, and belongs to the field of machinery. The device comprises movable trolley tracks, a lifting travelling crane, a plurality of movable trolleys, a fixed iron mold and a model drawing separation mechanism, the movable trolleys are all arranged on the movable trolley tracks, the movable trolley tracks are arranged on the two sides of the fixed iron mold and the model drawing separation mechanism, the lifting travelling crane is arranged above the fixed iron mold and the model drawing separation mechanism, and the lifting travelling crane is arranged above the fixed iron mold and the model drawing separation mechanism. Two rails are installed on a base in the fixed iron mold and model drawing separation mechanism, drawing supports are fixed to the two sides of the rails, two lifting drawing hydraulic cylinders are installed in the upper plane of each drawing support, a plurality of clamping mechanisms are fixed to each drawing support, and two drawing beams are fixedly connected through two drawing supporting beams. The device is reasonable in structural design, convenient to install, reliable in operation, low in labor intensity, high in mechanization degree, good in drawing quality of an iron mold casting mold, smooth in technological process and capable of meeting use requirements.

The application belongs to the field of core shooting machines, in particular to a kind of foundry coated sand core shooting machine, including frame, movable die assembly, fixed die assembly, sand shooting assembly, sand supply assembly, and the fixed die assembly includes upper die;The upper die and frame are in fixed connection;The upper die top is provided with sand inlet, and bottom is provided with forming chamber;The inner wall of the upper die is provided with exhaust air duct;The bottom of the exhaust air duct is provided with a plurality of first exhaust ports, and the first exhaust port is in communication with the forming chamber;Through the cooperation of first exhaust port, exhaust air duct and second exhaust port, the forming cavity of upper die and bottom die can be exhausted, to reduce the loosening of sand particles in the cavity caused by gas, improve the density and smoothness of the surface of the formed sand core, and at the same time, through the setting of the protrusion, the escape speed of the gas in the exhaust air duct can be accelerated, thereby ensuring the exhaust effect of the device.

The utility model relates to the technical field of precoated sand core shooters, and discloses a core shooter with a precoated sand recovery device, which comprises a bottom plate, the core shooter is fixedly mounted on the upper surface of the bottom plate; and the core box is arranged on the upper surface of the bottom plate. A third connecting rod and a second rotating rod are pushed inwards, the third connecting rod drives a second connecting rod to move downwards through a fixing block, the second connecting rod drives a first sliding block to slide on the inner wall of a first sliding hole, meanwhile, the second connecting rod drives a scraping plate to move downwards, and the scraping plate drives the second connecting rod to slide on the outer wall of a connecting plate through a blocking rod. A first rotating rod is rotated, a second rotating rod slides into the inner wall of a limiting hole, the first rotating rod can be blocked by a fixing ring, then an electric telescopic rod is started, the electric telescopic rod retracts, a first connecting rod is driven by a connecting block to slide on the inner wall of a sliding rail, and the stop rod and the scraper are driven to move on the upper surface of the core box; and the precoated sand on the core is scraped into the collecting hopper, so that the effect of scraping redundant precoated sand is achieved.

The invention relates to a 3D printing sand mold cleaning device which is characterized by comprising an automatic sand cleaning room, a roller shutter door arranged at an inlet of the sand cleaning room, an automatic transfer trolley used for bearing and transferring a sand mold, a sand cleaning mechanism, an air supply system and a control unit. The sand cleaning mechanism comprises a plurality of sand cleaning actuators and a driving mechanism used for driving the sand cleaning actuators to do linear movement independently. An automatic sensing device is arranged on each sand cleaning actuator and is used for detecting the distance between the automatic sensing device and the surface of the sand mold in real time in the moving process; the control unit is in signal connection with the driving mechanism, the automatic induction device and the air supply system. The invention further relates to a sand cleaning method for the 3D printing sand mold. According to the scheme, the problem that a traditional automatic sand cleaning device cannot treat sand molds with complex inner cavities, deep cavities or special-shaped structures can be solved.

The present invention belongs to the technical field of lost wax casting, and specifically is a lost wax casting shell making device, comprising a machine base; two fixed columns are fixedly connected to the top of the machine base; a drying box with multiple output end electric heaters is provided to dry and solidify the wax trees that are suspended and transported, so as to achieve the effect of non-stop drying and shell making of the wax trees on the barbecue grill, thereby reducing the situation where the workpiece is not dried and solidified after sanding, resulting in difficulty in firm adhesion of powder on the surface of the wax mold; the wax trees are uniformly dried synchronously from different angles through the multiple output ends of the electric heater, and symmetrical air supply at the four corners can form a three-dimensional circulating airflow, avoiding uneven drying caused by unilateral air supply, and preventing the shell from generating stress cracks due to excessive local drying, thereby improving the effect of drying and solidifying the wax trees; the method of hanging, conveying, drying and solidifying the wax trees composed of the barbecue grill by a ring conveyor can avoid adhesion of the wax trees to the contact surface, thereby ensuring drying efficiency and reducing the risk of wax mold deformation.

The utility model discloses a loose sand suction device for a 3D printer sand box, which comprises an upper frame, a lower frame, a vortex fan, a sand suction hose, a cylindrical bag-type dust collector and a control electric cabinet, a buffer bin is arranged on the upper frame, the cylindrical bag-type dust collector and the vortex fan are erected on the top of the buffer bin, and the sand suction hose is arranged on the lower frame. A sand discharging valve is arranged at the bottom of the temporary storage bin, the upper rack is erected on the lower rack, a sand storage hopper is arranged on the lower rack, and the vortex fan communicates with a sand box of the 3D printer through a cylindrical bag-type dust collector and a sand suction hose. Compared with the prior art, the loose sand suction device is designed, loose sand in a sand box of the 3D printer can be sucked into the cylindrical bag-type dust collector and is separated through a bag in the cylindrical bag-type dust collector, the sand falls into the temporary storage bin to be stored, the movable sand storage hopper is designed below the temporary storage bin, and the sand storage hopper is arranged below the temporary storage bin. And the sand in the temporary storage bin can be received, and assembly line type sand suction and sand conveying can be achieved.

The vibrating screen for the vertical sand spraying machine comprises a screen frame, a screen plate, a drainage partition plate, a vibrator and a flow guide pipe, the screen plate is arranged at the bottom of the screen frame, screen holes are evenly formed in the screen frame and the screen plate respectively, and the vibrator is arranged on the outer wall of one side of the screen frame; an integral structure formed by connecting the screen frame and the screen plate is obliquely arranged, the drainage partition plate is arranged in the integral structure formed by connecting the screen frame and the screen plate, and the portions, located on the two sides of the drainage partition plate, of the screen plate are provided with a feeding position and the flow guide pipe correspondingly; an opening is formed in the side, away from the feeding position, of the drainage partition plate. The vibrating screen has the advantages that the vibrating screen is simple in overall structural design, effective separation of sand grains and sand bumps is achieved with extremely low cost, the blocking frequency of the screen plate is remarkably reduced, the noise reduction effect is greatly improved, the failure rate of a sand spraying machine is reduced, and uniformity in the sand spraying process is achieved.

The utility model relates to the technical field of shell core machines, in particular to a sand blowing mechanism for a shell core machine, which comprises a base, mounting brackets are symmetrically arranged on the top surface of the base, the mounting brackets are fixedly mounted on the top surface of the base through bolts, and mounting modules are symmetrically arranged on the two mounting brackets. The mounting module comprises an X-shaped connecting plate arranged on the inner side of the mounting support, supporting assemblies are symmetrically arranged at the lower end of the X-shaped connecting plate, and a sand blowing mechanism is arranged on the X-shaped connecting plate. The mold has the advantages that the structures of the movable mold and the static mold are modularized, so that the maintenance operation space is more sufficient when any one of the movable mold and the static mold is maintained, the maintenance working efficiency is improved, the design is more reasonable, and the mold is more convenient to use. And the supporting assembly is further arranged to reduce the impact during sand shooting, and the practicability is higher.

This invention discloses a sand mold forming die, relating to the field of mold equipment technology. The forming die can form a mold body from molding sand in one step, and two sets of mold bodies can be joined to form a complete sand mold. Specifically, it includes: a bottom mold, a top mold, and an interface plate. The bottom mold has a first shaping surface for forming the external shape of the mold body, and the top mold has a second shaping surface for forming the internal shape of the mold body. When the bottom mold and the top mold are joined, the first shaping surface and the second shaping surface are opposite each other. The interface plate is movably placed on the first shaping surface to form a connecting part on the outside of the mold body during molding. After the mold bodies are joined to form a sand mold, different sand molds can be connected in series through the connecting part. This invention can use a single type of mold to manufacture different types of mold bodies that can be joined together, greatly improving the preparation efficiency and economic benefits of sand molds.

The utility model relates to a sand core making machine, and discloses a sand core ejection structure of a vertical sand core making machine, which comprises an equipment frame, a first mounting part, a second mounting part, four connecting columns, a group of springs, a third mounting part and an oil cylinder. At the beginning, the upper mold is in an upper limit position, and at the moment, the first ejector rod of the third mounting part penetrates out of the upper frame body, acts on the connecting part and overcomes the spring, so that the second ejector rod of the ejection part exceeds the mold cavity of the mold part. And then, the oil cylinder enables the upper mold to move downwards, before the upper mold and the lower mold are closed, the first ejector rod is separated from the connecting part, and under the action of the spring, the second ejector rod recovers to be flush with the mold cavity of the mold part. And then, the upper mold continues to move downwards to be closed with the lower mold, a sand shooting hole is formed in the side wall of the mold, and a sand shooting cylinder shoots sand into the mold from the sand shooting hole. And finally, the oil cylinder enables the upper mold to move upwards and restore to the initial state, and the second ejector rod ejects the sand core in the mold cavity of the lower mold upwards, so that the sand core is separated from the mold cavity.

The invention provides an automatic material receiving device for a core shooter, which belongs to the technical field of core shooters, comprises a material receiving bracket, and is characterized in that a material receiving conveying module is arranged on the material receiving bracket, a protection box is arranged on the outer side of the material receiving conveying module, an air exhaust module is arranged on the protection box, and a refrigeration module is arranged on the air exhaust module; an exhaust cooling module is arranged on the refrigeration module, and a cold water supply module is arranged on one side of the refrigeration module. The automatic material receiving device for the core shooter solves the problems that an existing automatic material receiving device for the core shooter is poor in cooling effect, low in cooling speed and not beneficial for subsequent personnel to take.

The utility model belongs to the technical field of machining auxiliary tools, and provides an automatic carrying mechanism for cylinder body sand core blanks, which is labor-saving and quick to use and also reduces the blank breakage rate. Comprising an industrial mechanical arm, a workpiece fork, a first in-position monitor, a core rod removing plate, a chain scraper conveyor and a core shooter, a discharging track is arranged at an outlet of the core shooter, one end of the discharging track is located in the core shooter, the other end of the discharging track is located outside the core shooter, and a blank output trolley is installed on the discharging track; a first in-place monitor is installed at the position, away from a core shooter body, of an outlet rail of the core shooter, an industrial mechanical arm, a core rod removing plate and a chain scraper conveyor are fixedly installed on one side of the outlet rail of the core shooter, and a workpiece fork is installed at the arm end of the industrial mechanical arm. The core rod removing plate is structurally characterized in that a thin plate is mounted at the upper end of a bracket fixed on the ground.

The application relates to the technical field of casting, in particular to a resin sand molding mold stripping device convenient for large casting, which has the following technical scheme: an annular track is arranged on the ground and below the horizontal plane, an inner surrounding area of the annular track is used to form a placing station for placing a mold and a sand box; a positioning assembly is slidably arranged in the annular track; and a pressing assembly is arranged on the positioning assembly, the positioning assembly is used to drive the pressing assembly to move above lugs on the periphery of the mold, and the pressing assembly is used to press the lugs of the mold to fix the mold. The application has the advantages that manual knocking on the mold is not needed for many times, the mold is not easily damaged, the whole process is fast and convenient, the stripping action can be completed only by once hoisting, the production efficiency and the overall molding quality are improved.

METHOD FOR MANUFACTURING A MOLD FOR CASTING A METAL PART MADE BY LOST WAX CASTING One aspect of the invention relates to a method for manufacturing a mold for casting a cluster of metal parts from a superalloy to be cast in said mold, comprising: determining (1) an optimal set of values ​​() for thermomechanical parameters of the mold, said determination comprising: simulating (14) cooling of an assembly comprising the mold and the superalloy; determining (16), from the simulated cooling, a plurality of risks () of plastic deformation of the assembly; and provided that, for at least one portion, the respective risk of plastic deformation reaches a predefined threshold (), repeating the simulation of the cooling of the assembly and the determination of the plurality of risks of plastic deformation with new thermomechanical parameters for the mold; manufacturing the mold.Figure to be published with the abstract: Figure 3.

The box moving mechanism comprises a vertical frame, a walking groove is horizontally formed in the vertical frame, and a box moving device capable of moving is installed in the walking groove. The box moving mechanism has the advantages that the box moving mechanism comprises the vertical frame and the walking groove horizontally formed in the vertical frame, the box moving device capable of moving is installed in the walking groove, walking wheels matched with the walking groove are arranged on the box moving device, a gear is arranged on an output shaft of a driving motor on the box moving device, and the gear is connected with the box moving device. A rack matched with the gear is arranged in the walking groove so as to drive the sand box to achieve stable, accurate and controllable horizontal movement. The sand box lifting mechanism is further installed on the box moving device and comprises a telescopic cylinder, a lifting frame and a supporting plate, the supporting plate can achieve matched lifting of the side faces of the sand box, guide rods are arranged on the two sides of the lifting frame, the stability performance of the sand box in the vertical lifting process can be guaranteed, and the efficiency of overall shakeout operation is effectively improved.

The utility model discloses a shell core machine, and relates to the technical field of casting. The shell core machine is technically characterized by comprising a shell core machine bottom frame, a mold frame component and a sand shooting device are installed above the shell core machine bottom frame, a cavity is formed in the shell core machine bottom frame, and openings are formed in the top and the front side of the shell core machine bottom frame; a screening frame is arranged in the cavity and placed on the first supporting angle steel and the second supporting angle steel, and the first supporting angle steel and the second supporting angle steel are both fixedly connected with the shell core machine bottom frame. And a purging unit is mounted outside one side of the shell core machine chassis in the length direction. When the shell core machine is used, the screening net in the shell core machine can automatically complete separation work of available precoated sand and impurity sand blocks, so that the trouble that workers need to screen and separate the impurity sand blocks and the available precoated sand grains subsequently can be omitted, and the workload of the workers is effectively reduced.

A purging mechanism of a punch-out machine is characterized in that purging devices are mounted at the upper end and the lower end of a guide sleeve, each purging device comprises a main blowing pipe and a plurality of blowing nozzles arranged on the main blowing pipe, and when a guide rod vertically moves relative to the guide sleeve, the blowing nozzles can blow high-pressure gas onto the guide rod and blow off sand grains attached to the guide rod, so that the blowing efficiency of the guide rod is improved; the situation that due to excessive friction, the structure is damaged, and corresponding guiding and supporting effects cannot be achieved is avoided, meanwhile, when a guide rod vertically moves, baffles on a vertical rod can be synchronously driven to vertically ascend and descend, the baffles make contact with swing turning plates in sequence, air blowing nozzles on an air blowing main pipe can be driven to swing in a reciprocating mode, all-directional sand blowing is conducted on the guide rod, and the service life of the air blowing main pipe is prolonged. And the matched movement between the guide rod and the guide sleeve is ensured, so that the overall box poking operation efficiency is improved.

The invention relates to the technical field of evanescent mode casting models, and discloses evanescent mode manufacturing equipment which comprises a casting mold frame, a moving guide mechanism, a cooling box and a mold are arranged in the casting mold frame, and the moving guide mechanism is used for driving the cooling box and the mold to move; wherein the cooling box is located between the mold and the moving guide mechanism, when the cooling box is attached to the mold, the cooling box is used for cooling the mold, temperature transfer can be conducted between the cooling box and the mold, and the evanescent mode manufacturing technology comprises the steps that 1, the evanescent mode equipment is used for manufacturing an evanescent mode; 2, the cooling box is filled with a cooling medium; 3, the cooling box is attached to the mold, and the mold is cooled through the cooling box; and 4, the mold is moved for demolding, and the mold cooling device has the advantages that cooling liquid can evenly cool the mold, and meanwhile the cooling efficiency is high.

The invention provides a sand mold three-dimensional interconnected high-flexibility channel rapid freezing device and method.The device comprises a frozen sand mold printing system and a frozen sand mold post-processing system, and the frozen sand mold post-processing system comprises a pore positioning module, a pore sand cleaning module and a rapid freezing module; a belt conveyor is arranged between the frozen sand mold printing system and the frozen sand mold post-processing system, and a printed frozen sand mold is transferred from the frozen sand mold printing system to the frozen sand mold post-processing system through the belt conveyor. On the basis of an airflow scanning positioning and closed-loop sand cleaning system, the pore three-dimensional shape is precisely reduced, residual sand is removed, micron-sized pore control and overall frozen sand mold rapid freezing are achieved, the consumable cost is reduced, the frozen sand mold whole-process machining efficiency is effectively improved, and the product quality is improved. And a high-precision, short-period and zero-waste green casting solution is provided for the fields of aerospace, automobiles and the like.

The application discloses a kind of 3D printing sanding devices of sanding stable, it is related to printing sanding technical field, including lower sand hopper, the top of lower sand hopper is equipped with sand supply port, the bottom of lower sand hopper is equipped with the lower sand port of fixed width, lower sand hopper below is equipped with conveying belt assembly, lower sand port two sides are equipped with sand outlet and sand blocking piece, sand blocking piece is contacted with the upper surface of conveying belt assembly, and sand outlet bottom and the upper surface of conveying belt form sand outlet passage between.The lower sand hopper below is provided with conveying belt assembly, and the sand material discharged from lower sand port can be retained on conveying belt assembly, sand blocking piece blocks sand material from discharging from rear, and only when conveying belt assembly starts transportation, sand material in lower sand hopper can be continuously discharged from sand outlet passage.The lower side of sand outlet passage is conveying belt, with certain deformability, and when facing sand material with slightly larger particle size than sand outlet passage or insufficient roundness, sand outlet passage can also discharge it, reducing the situation that sand material is stuck and blocked in sand outlet passage.

The application relates to the field of molding sand printing, in particular to a sand feeding part capable of feeding various molding sands and a molding sand printing device, which comprises a base frame, a plurality of sand boxes arranged along the length direction of the base frame, the upper ends of the sand boxes are all provided with openings, and the bottoms of the sand boxes are all provided with sand pushing plates capable of moving upward; a roller shutter plate is slidably arranged on the upper side of the base frame, a slot is formed in the roller shutter plate, and the upper ends of the sand boxes can be aligned with the slot in sequence by sliding the roller shutter plate. The application has the effects of improving the sand feeding efficiency when a single sample is printed by using various molding sands, and improving the printing efficiency of the sample.

The invention discloses a sand core treatment device for an aluminum alloy hub of a motorcycle, and relates to the field of hub casting. The device comprises a cleaning and drying assembly, a rotary clamping mechanism is arranged beside the cleaning and drying assembly, the cleaning and drying assembly comprises a cleaning chamber, a drying ventilation pipe chamber and a drying air outlet chamber, one end of the drying ventilation pipe chamber is fixedly connected to the side end of the cleaning chamber, and the other end of the drying ventilation pipe chamber is fixedly connected to the side end of the drying air outlet chamber; the rotary clamping mechanism comprises a displacement clamping head and a rotary table, a detection discharging piece and a feeding table are further arranged on the periphery of the rotary clamping mechanism, and the displacement clamping head is fixedly connected to the rotary table. According to the device, the treatment steps and process are simplified, so that the treatment process of the sand core is quicker, the device is completely dried through the drying ventilation pipe chamber and the drying chamber after being cleaned, and waste water which is not treated is prevented from being directly discharged to pollute the environment.

The utility model belongs to the field of precoated sand shell core production and manufacturing equipment, and provides a double-sand-shooting full-automatic core shooting machine which comprises an upper machine body, a lower machine body, a mold opening and closing air cylinder, an upper mold plate, a lower mold plate, a supporting frame, a guide mechanism, a left sand shooting mechanism, a right sand shooting mechanism and an air storage tank. A protective box and a double-open box door which are distributed around the supporting range of the supporting frame are arranged between the upper machine body and the lower machine body, a machine box, a lifting device, a translation device and a belt conveyor are arranged on the front side of the double-open box door, and the translation device is used for driving the belt conveyor to do reciprocating translation motion towards a core shooting station. And the belt conveyor is used for receiving the precoated sand shell core falling from top to bottom after mold opening and transferring the precoated sand shell core to the other end of the belt conveyor. The automatic shell core output device is reasonable in design, capable of automatically outputting shell cores, beneficial to improving the core shooting operation environment, high in utilization rate and suitable for large-scale popularization.

The application provides a multi-material interlayer and intra-layer double-composite digital differential sanding device, which comprises a plurality of combined lifting sand dischargers, a sanding printing device, a forming platform, a support frame, a base and a detection sand supplementing device, wherein the plurality of combined lifting sand dischargers are composed of a sand scraping plate, a plurality of combined sand storage boxes, a motor and a spiral sand feeder, the sanding printing device is composed of a printing nozzle, a sand A storage box, a sand B storage box, a gradient mixed sanding box, a scraping plate, a twisting mechanism, a heating pipe and an extrusion stirring device, and the detection sand supplementing device is composed of a detection device and a sand supplementing device. The multi-material casting obtained by the device has excellent performance, the thermal physical property parameters of each part change uniformly in gradient, which is beneficial to uniform heat dissipation of the casting and collapse of the sand mold during pouring, fully plays the advantages of multi-material heat transfer and heat storage, and realizes high-throughput preparation of the continuous gradient transition layer of the multi-material sand mold.

The invention relates to a method and a device for rapidly forming a near-infrared targeted hardened water glass binder blast sand mould driven by a solar cell. The three translation mechanisms are used for driving the sand leaking mechanism, the water glass spraying mechanism and the near-infrared resistance wire heating mechanism to conduct sand laying, water glass binder spraying and near-infrared heating respectively, rapid molding and hardening of sand are achieved, and the working efficiency is improved. A near-infrared optical conversion agent is added into a water glass binder, the near-infrared optical conversion agent absorbs near-infrared light, molecules or electrons in a material are excited to enter a high-energy state, and then redundant energy is released as heat in the process of returning to a ground state; the near-infrared targeted heating of the water glass binder containing the near-infrared optical conversion agent is realized, and the hardening speed of the water glass binder is further improved.

This invention relates to the field of core-making equipment technology and provides a high-precision mold closing and flipping mechanism for core-making equipment. The mechanism includes a four-guide-rod guide frame fixed to the main body of the core-making equipment; a fixed mold mounting plate fixedly sleeved on the four-guide-rod guide frame; an assembly plate fixedly sleeved on the four-guide-rod guide frame; a flipping plate disposed within the assembly plate and the four-guide-rod guide frame; an adjustment mechanism disposed on the assembly plate for controlling the flipping plate's flipping and mold closing; and a cooling mechanism disposed on the four-guide-rod guide frame for cooling. This high-precision mold closing and flipping mechanism for core-making equipment effectively alleviates the overheating problem of the four-guide-rod guide frame and reduces component wear and malfunctions.