78results about "Moulding machines" patented technology

This invention relates to the field of casting technology for sand cores and sand shells, and particularly to a method for preparing high-precision casting sand cores and sand shell components based on a coated sand process. The method includes the following steps: rinsing quartz sand and reacting it with a sodium silicate solution to obtain coated quartz sand; adding 3-aminopropyltriethoxysilane and water to the coated quartz sand in a high-speed mixer; sequentially adding modified benzoxazine resin, calcium citrate, magnesium chloride, hyperbranched polyamide, and polycaprolactone-grafted starch to obtain finished coated sand; plasma-treated chromium-12 molybdenum-vanadium mold steel to obtain an amino-modified mold; sand-jetting the finished coated sand into left / right half-shells; shaping and pre-embedding chromite sand cores with chills to obtain left / right half-shell green blanks; milling the surfaces of the left / right half-shell green blanks, coating them with resin, butt-jointing, curing, and deburring to obtain the casting sand core and sand shell. This method solves the problems of poor mechanical strength, poor high-temperature stability, low production efficiency, and poor environmental performance in high-precision casting sand cores and sand shells.

The utility model discloses a kind of preheating tool of core box, including tool body, positioning structure and clamping device, positioning structure is fixedly connected with tool body, core box is placed between positioning structure and clamping device, and the clamping of core box is realized by pushing clamping device to be close to or away from positioning structure and loosening;Tool body is provided with guide slot, and the relative sliding of tool body is realized by the cooperation of clamping device and guide slot;Clamping device includes two first columns oppositely arranged, and the fixed seat of two first columns is cooperated with the both sides of core box respectively.The preheating work of the core box can preheat core box, improve the working efficiency of core shooting machine.

The utility model discloses a full -automatic static pressure molding machine belongs to static pressure molding machine field, including static pressure molding machine, one side fixed connection of static pressure molding machine has the support frame, the upper surface fixed connection of support frame has the casing, both sides inner wall of casing all are established and have placed the groove, the inner chamber bottom fixed mounting of placed groove has electric push rod, the output fixed connection of electric push rod has the limit frame, the inner chamber of casing is provided with modeling mould, and both sides of the bottom of modeling mould all are fixedly connected with the limit block, through the cooperation of above -mentioned each device, modeling mould carries out quick disassembly and installation, and the limit frame and limit block are driven to the upward displacement through electric push rod to the ejection of modeling mould is driven, and the replacement time of mould is shortened, and the manpower and material resources of reduction are input, and the work efficiency of personnel is improved.

A full-automatic double-station bionic sand shooting molding machine and a sand shooting molding method. It relates to the technical field of foundry molding machines. Through symmetrical arrangement of upper and lower mold boxes, double independent molding stations are provided, and a double-gantry clamping and transferring device is matched, so that the core molding process and the auxiliary preparation process can be completely parallel operation, without process waiting, the whole production process has strong continuity, the production efficiency is improved by more than 100% compared with single-station equipment, the sand shooting flow channel designed by using bionic structure solves the problems of traditional sand shooting such as turbulence and dead angle, the uniformity of sand filling is greatly improved, and the qualified rate of finished products is improved from 85% of the traditional method to more than 99.5%; meanwhile, through the sand grinding sand self-protection structure, the flow channel wear is greatly reduced, and the service life of the equipment is prolonged by more than 3 times. Full-process automation, without manual intervention, 24-hour unmanned continuous production can be realized; at the same time, the sand box bottom, the sand box wall and the core can realize closed loop recycling after sorting, greatly reducing the production material cost, and adapting to the flexible production demand of modern foundry workshop.

This invention provides a sand molding device for stainless steel casting production, relating to the field of sand molding technology. It includes a device base, a lower molding box above the base, an ejector mechanism (a retractable sleeve structure) above the base, a vibration generator above the base, a sand mold above the base, and two release agent spraying devices above the base, located on the upper and lower sides of the sand mold respectively. In this invention, the lower molding box, ejector mechanism (a retractable sleeve structure with internal springs), vibration generator (capable of generating vibrations via ultrasound), sand mold, and two release agent spraying devices located on the upper and lower sides of the sand mold, each with a set of spray nozzles arranged in a straight line, allow for efficient operation during the sand molding process.

A sand shooting mechanism, comprising: a driving mechanism (100), a sand feeding hopper (200), a sand-shooting venting seat (300) and venting connection seats (400), wherein the sand-shooting venting seat is internally provided with a sand-shooting venting cavity (330); the sand-shooting venting seat is further provided with an air inlet (311) of the sand-shooting venting cavity and an air outlet of the sand-shooting venting cavity; the driving mechanism drives the sand feeding hopper and the sand-shooting venting seat to move between a first position and a second position; when in the first position, the sand feeding hopper is connected to a sand storage cylinder (500) of a core making machine; and when in the second position, the air inlet of the sand-shooting venting cavity is in communication with the venting connection seat, and the air outlet of the sand-shooting venting cavity is connected to the sand storage cylinder. A sand shooting machine comprising the sand shooting mechanism. In the sand shooting mechanism, the sand feeding hopper and the sand-shooting venting seat are each connected to the sand storage cylinder, and it is not necessary to arrange the sand-shooting venting seat below the sand feeding hopper, such that the arrangement height of the sand feeding hopper can be reduced, thereby effectively reducing the overall heights of the sand shooting mechanism and the core making machine.

This application specifically discloses a cylinder block sand core casting mold, which includes a lower core box, an upper core box, and a sand core casting cavity formed by the lower core box and the upper core box. A sand-shooting plate is installed above the upper core box, and the sand-shooting plate is provided with multiple sand-shooting components. Each sand-shooting component includes an installation port on the upper core box, a nozzle bushing at the installation port, and a sand-shooting nozzle connected to the sand-shooting plate. The sand-shooting nozzle is adapted to extend into the nozzle bushing, with its end facing and communicating with the sand core casting cavity. A support sleeve is provided at the end of the sand-shooting nozzle to ensure its stability during sand-shooting, reducing deviation or vibration during sand ejection and improving sand-shooting accuracy. Furthermore, a limiting plate is provided on the circumferential surface of the tail of the sand-shooting nozzle. When the sand-shooting nozzle extends into the nozzle bushing, the limiting plate is adapted to limit the extension stroke of the sand-shooting nozzle, preventing over-insertion. The nozzle bushing and the sand-shooting nozzle are made of wear-resistant materials to reduce wear after long-term use and extend the mold life.

This utility model relates to the field of core shooting machine technology, specifically a feeding device for a core shooting machine, comprising: a discharge port provided below the sand shooting box, and an electric push rod provided inside the discharge port; a connecting plate installed at the bottom end of the electric push rod, and an mounting plate connected to one side of the connecting plate, with a telescopic sleeve installed on the surface of the mounting plate; a scraper provided on one side of the mounting plate, with a telescopic rod fixedly connected to the surface of the scraper; by providing a telescopic scraper, when it is necessary to clean the inside of the discharge port, the motor drives the electric push rod to rotate through the rotating rod, and the electric push rod drives the scraper to slide along the inner wall of the discharge port through the connecting plate and the mounting plate, scraping and cleaning the sand particles and adhesive adhering to the inner wall of the discharge port. At the same time, the extension and retraction of the electric push rod drives the connecting plate to rise and fall inside the discharge port, and the connecting plate drives the scraper to rise and fall synchronously through the mounting plate, thereby achieving a comprehensive cleaning of the inner wall of the discharge port and avoiding the problem of incomplete cleaning of sand particles or adhesive due to deformation of the cleaning plate.

The application discloses a V-process casting composite mold based on negative pressure and conformal cooling and a shape control method, and belongs to the field of metal casting. The method comprises the following steps: integrating a conformal cooling channel in a mold sample body, forming time-space cooperation with a negative pressure air extraction system, and realizing active heat regulation; a digital twin model containing heat conduction, phase change, heat-force coupling and flow heat exchange is constructed, and sensor data is assimilated in real time through ensemble Kalman filtering. The application realizes the coupling regulation of heat-flow-force-phase change multi-physical field, eliminates shrinkage holes and shrinkage porosity, refines the solidification structure, reduces the residual stress, improves the size precision and mechanical properties, and provides a reliable solution for high-quality forming of complex and precise castings in the fields of aerospace, energy equipment and the like. The application solves the technical problems that, in traditional V-process casting, the heat-flow-force-phase change multi-field coupling is out of balance due to the passive heat dissipation mode and the open-loop control system, and the internal quality of the castings cannot be accurately regulated.

This utility model provides an upper frame adjustment mechanism for a sand-shooting machine, belonging to the technical field of upper frame adjustment mechanisms for sand-shooting machines. Its structure includes a frame, with a vertically mounted column on the left side of the frame. An upper sand-shooting device is mounted on the upper end of the column, and a lower sand-shooting device is mounted on the lower end of the column. The upper sand-shooting device includes an upper fixed seat fixed to the top of the column, and an upper frame adjustment mechanism is sleeved in the middle of the upper fixed seat, thus forming an upper frame adjustment mechanism for a sand-shooting machine. When adjusting the gap between the lower end of the upper frame and the emptying molding cavity, this upper sand-shooting device uses chain transmission on the worm gear adjustment mechanism and worm gear linkage meshing transmission to synchronously drive four lifting and rotating seats to perform threaded lifting and lowering adjustment on four studs. This achieves the adjustment of the gap between the upper frame, which is fixed to the bottom surface of the lifting sand frame, and the emptying molding cavity, making it highly practical.

Methods and systems for creating a mold for a memorialization product comprising characters without a backing substrate are described herein. In a process for creating a mold, a three-dimensional (3D) model of a product design is generated. The product design includes characters with customized features. A mold design is generated based upon the 3D model of the product design. The mold design is optimized including character optimization based on the depth and bend radius of the characters. Printing instructions for creating the mold are generated and accessed by a processing device. The mold is created according to the printing instructions. A product, such as a bronze memorialization product, can be cast using the mold.

The utility model relates to a die foot structure of quick installation mould, including four clamping mechanisms, four clamping mechanisms set up respectively on two mounting plates of the core shooting machine, and one clamping mechanism is installed on the upper and lower sides of each mounting plate respectively, the clamping mechanism includes a pair of the clamping block that can make synchronous motion, four die feet, four die feet distribute in mould body both sides, and distribute two die feet every side, and the inside of die foot with mould body does detachable connection, and the other side of die foot is connected with the clamping mechanism, when installing, two clamping blocks of each clamping mechanism make synchronous clamping to the both sides of die foot. Through changing the fixed mode between mould body and core shooting machine mounting plate, make clamping mechanism on two mounting plates of the core shooting machine, make quick clamping through the die foot of clamping mechanism and mould body both sides, and the dismounting efficiency of mould is greatly promoted.

The utility model discloses a bronze ware quick dewaxing equipment, including the bottom plate, the outer surface fixed connection of bottom plate has two support frames, two the support frame mutual close one end common fixed connection has dewaxing box, the outer surface of dewaxing box is equipped with lifting mechanism, the inside of dewaxing box is equipped with flushing mechanism, the outer surface sliding connection of dewaxing box has the limiting panel. The device utilizes the water inlet pipe set, can conveniently add the flowing hot water of staff to dewaxing box, realizes the small wax of remaining on the object in dewaxing box to carry out the flushing clearance, utilizes the steam engine set, can output steam and through import pipe will steam delivery to dewaxing box, limiting panel can carry out the stratification to dewaxing box, realizes the flow of steam to carry out the blocking, increases the utilization of steam, solved only through the steam and carries out the dewaxing operation, and the object on possibly remaining small wax problem, the cover plate is convenient for staff to install or take out the placing box.

This invention relates to the field of sand molding machine technology and discloses a high-strength ductile iron casting sand molding machine, including a U-shaped frame, and further comprising: a support plate disposed between the upper and lower horizontal edges of the U-shaped frame, with a receiving plate connected above the support plate via a connecting mechanism for receiving the sand mold after molding; a molding component disposed on the U-shaped frame and used for molding the sand mold; and a feeding component disposed on the U-shaped frame and the support plate, used for receiving the sand mold after molding, which can automatically receive the sand mold, ensuring the molding efficiency of ductile iron castings. Through the setting of the molding component and the feeding component, this invention can automatically separate the ring and the sand mold when the ring moves upward after sand molding is completed, and the receiving plate can receive the sand mold, thereby realizing automated sand molding, helping to improve the molding efficiency of sand molds, and thus improving the use effect of the equipment.

The application discloses a water pump die casting core shooting device with sand core density detection function in an intelligent casting island and a water pump die casting, and relates to the technical field of casting molding, which comprises a lifting seat and a closed assembly, a storage box is arranged on the top of the lifting seat, and a pressure sensor is fixed to the inner side of the lifting seat, a fixing lug is connected to the top of the pressure sensor, a pressing block is arranged above the fixing lug, a spraying box is fixed to one end of the fixing lug, and a nozzle is arranged at the bottom of the spraying box. The application controls the lifting seat to move downwards through an electric push rod, so that the spraying box is automatically connected with a core box, the core box pushes a bottom plate in the process, drives a baffle to rotate and opens the nozzle, automatic connection of a spraying channel is realized, the lifting seat moves upwards after sand shooting is completed, a reset spring pushes the baffle to close, sand core leakage is effectively prevented, manual intervention is not needed, and the operation automation degree is improved.

The utility model relates to a kind of for large castings multiple large iron type's sand-coated molding line, it belongs to mechanical field.The utility model includes iron type and model heating furnace device, iron type and model mould drawing separation mechanism, iron type sand shooting sand-coated device, iron type and model grabbing moving mechanism, variable rail transition transfer trolley mechanism and multiple load moving platform car, iron type and model conveying rail line one from right to left respectively have iron type and model heating furnace device, iron type and model grabbing moving mechanism, iron type sand shooting sand-coated device and iron type and model mould drawing separation mechanism;Iron type and model conveying rail line two from left to right respectively have the moulding station of iron type and model and multiple load moving platform car;Two transition transfer trolley rails are respectively equipped with a variable rail transition transfer trolley mechanism;Iron type and model mould drawing separation mechanism, iron type sand shooting sand-coated device are all through type.The utility model structure is reasonable, sand-coated casting quality is good, degree of automation is high, easy to install, satisfy use demand.

This invention belongs to the technical field of core shooting machines, and specifically discloses a core shooting machine with uniform sand shooting function, comprising: a machine body for mounting all mechanisms, electrical control, and pneumatic components; a mold frame mounted on the machine body, with a moving mold and a fixed mold sequentially mounted vertically on the mold frame; and a sand shooting device symmetrically distributed on both sides of the mold frame. The sand shooting device includes a sand hopper, an air pump, a nozzle assembly, and a power assembly. The power assembly is mounted on the machine body, and the sand hopper is mounted on top of the power assembly for holding and storing the coated sand to be shot. The sand hopper can move towards the mold frame under the drive of the power assembly. This invention, through the cooperation of a sealing ball, a gear rack, and a reset component, achieves automatic opening of the channel during sand shooting and automatic sealing during non-sand shooting, effectively preventing water vapor from entering the sand hopper, avoiding the clumping of coated sand, and ensuring smooth sand shooting.

The application discloses a sand hopper feeding device and belongs to the field of casting equipment. The sand hopper feeding device comprises a core shooter, a sand storage assembly, a suspension conveying assembly and a breaking assembly. The sand storage assembly comprises a sand storage part arranged above the sand hopper, and a sand guide part is arranged on one side of the sand storage hopper. The suspension conveying assembly is arranged on one side of the sand storage assembly. The breaking assembly comprises a closing part at the opening of the sand storage hopper, guide parts arranged on the two sides of the sand storage hopper, linkage parts arranged on the two sides of the sand storage hopper, and a giving part arranged on the bottom surface of the large hopper cover. The sand hopper feeding device can automatically break the ton bag without manual operation through the closing part composed of the large hopper cover and the small hopper cover, the cooperation of the guide parts, the linkage parts and the giving part. The suspension conveying assembly automatically sends the ton bag to the upper side of the sand storage hopper. The sand storage assembly temporarily stores sand, and the sand guide part assists sand conveying to the sand storage hopper of the core shooter. The sand supply is stable in combination with sand quantity monitoring, the problems of insufficient or excessive sand quantity are avoided, the feeding automation and the sand core quality are improved, and the dependence on manual operation is reduced.

The application discloses a sand core preparation equipment and relates to the technical field of casting equipment. The equipment comprises a first transfer device, a second transfer device and a core making device. The first transfer device comprises a first transfer track and a mold changing trolley. The second transfer device comprises a second transfer track, a transfer platform and a turnover assembly. The first transfer track is arranged perpendicularly to the second transfer track. The turnover assembly is arranged on the transfer platform and comprises a turnover driving member and a turnover frame. The turnover frame has an extension. The turnover driving member drives the turnover frame to rotate so as to transfer a lower mold on the mold changing trolley to the transfer platform. The core making device is arranged above the transfer platform. The vertical transfer track cooperates with the turnover assembly to realize automatic and stable receiving and accurate positioning of the lower mold. The mold closing, sand shooting, solidifying, mold opening and ejection functions are integrated in one system, so that the automation degree, process continuity and production efficiency of the sand core preparation are remarkably improved.

This disclosure provides a control system, control method, and control program that can suppress the accumulation of flammable gas in a mold. [Solution] The control system according to this disclosure is a control system for a mold 20 that raises the temperature by burning a supplied combustible gas, and controls the amount of combustible gas supplied to the mold 20 based on the amount of unburned combustible gas in the mold 20.

Provided is a mold molding apparatus and a mold molding method that reduce waste of strokes for extrusion, improve efficiency of a carrier plate replacement operation, and assist in auxiliary operations. The mold molding apparatus includes: a carrier plate replacement device of a turret type; a sand box carrying-in / out device that carries in a sand box to a molding space formation position provided in the carrier plate replacement device and carries out the molded sand box; a sand box carrier plate superposition device that superposes each carrier plate with the carried-in sand box to form a molding space; a molding sand filling device that fills the molding space with molding sand; a molding station that is provided adjacent to the molding space formation position and includes a molding sand pressing device that molds a mold by pressing the molding sand; and a sand box carrier plate moving device that moves the carrier plate and the sand box in a superposed state from the molding space formation position to the molding station.

The utility model relates to the technical field of shell core machine discloses a horizontal and vertical dual -purpose shell core machine, including installation support frame, be provided with first module and second module on installation support frame, first module and second module can use independently on installation support frame, first module includes the upper die and lower die of being established on installation support frame, and the lower die can be perpendicular motion along the up and down direction of installation support frame, second module includes two core making mould, and two core making moulds can move relative motion along the left and right horizontal motion of installation support frame, the utility model discloses through first module and second module are used alone on installation support frame, and the shell core machine of vertical direction and horizontal direction moving mode is integrally arranged, has reduced the occupied area of vertical motion shell core machine and horizontal motion shell core machine, and simultaneously can effectively make the sand core of different types to the production to the increase of shell core machine's use scene and the scope of application.

The present application relates to a method for increasing the local strength of a mold shell. The steps of the present application are as follows: 1) according to the casting process of the casting, design and manufacture the casting, the pouring system mold, and complete the pouring system wax mold pressing; 2) group tree; 3) carry out the first layer of wax mold module surface layer of slurry and sand; 4) carry out the second layer of slurry and sand; 5) carry out the third layer of slurry and sand; 6) according to the cuboid steel bar of wax type surface processing, immerse the wax material on the surface; 7) after the third layer is dried, blow the surface floating sand, and the steel bar prepared in step 6) is bonded in the easy swelling part of the casting by using silica sol; 8) carry out sealing slurry; 9) carry out dewaxing, baking and complete the shell. The present application reduces the workload, saves the labor cost, improves the yield of the mold shell and the casting, the production efficiency and the delivery schedule.

The utility model relates to the technical field of shell core machine, specifically disclose a sand barrel core plate moving device for shell core machine, including fixed support frame and set up mounting frame on fixed support frame, be provided with the sliding frame between mounting frame and fixed support frame, be equipped with driver between sliding frame and fixed support frame, sliding frame slips on mounting frame through driver, the both sides top of mounting frame all is provided with guide rail, the both sides bottom of sliding frame all is provided with sliding part, and sliding part is installed in guide rail and slides on guide rail, the sand blasting equipment on the sliding frame of the utility model moves to the below of feed hopper through driver, and the feed hopper adds the coating sand to the sand blasting equipment, and the sand blasting equipment moves to the sand blasting position and carries out sand blasting, adopt the way of jointing between sliding part and guide rail and be connected, replace the driving mode of threaded lead screw, can reduce the position deviation between sand blasting mouth and mould sand inlet, improve the sand blasting effect.

The present application relates to the technical field of metal casting, and particularly discloses a core making machine, which is provided with at least two regulating systems in the circumferential direction of the side wall of a core box. During sand shooting, the exhaust adjusting branch of the regulating system controls the exhaust amount during sand shooting to avoid excessive pressure drop loss, and the negative pressure adjusting branch adjusts the vacuum degree in the cavity to increase the pressure difference between the region and other regions, improve the flowability of the sand, and facilitate compacting of the sand, thereby achieving good core making effect. During solidification and blowing, the blowing mechanism can blow triethylamine gas into the cavity through the top and side of the core box, achieve the best solidification and air intake combination, increase the air intake area, shorten the solidification time, improve the solidification efficiency, and increase the opening of the exhaust adjusting branch to increase the exhaust amount of the corresponding region and ensure smooth air intake. The present application also provides a sand shooting and solidification process control method applied to the core making machine.

The invention relates to a casting mould (1a) for producing a cast part formed from a light-metal alloy, in particular a housing for an electric drive for a motor vehicle. The casting mould (1a) expediently has at least one sand core (3a), which is formed and arranged in the casting mould (1a) in such a way that at least some parts of the at least one sand core (3a) can be completely surrounded in a circumferential direction by a light-metal melt with which the casting mould is filled for forming the cast part. A cast part incorporating for example a cooling channel can be advantageously produced. It is not necessary for a hole to be drilled for a channel to be formed. The invention also relates to a method for producing a cast part formed from a light-metal alloy, in particular a housing for an electric drive for a motor vehicle.

A single crystal ceramic core composition has an inorganic portion and an organic portion. The inorganic portion makes up about 85% by weight of the total weight of the ceramic core composition, and the organic portion makes up about 15% by weight of the total weight of the ceramic core composition. The inorganic portion includes about 94 to 98% by weight spherical fused silica, and about 2 to 6% by weight zircon flour. The organic portion includes about 84 to 88% by weight binder, about 1 to 2% by weight dye, about 6 to 12% by weight surfactant, and about 1 to 5% by weight polymeric fiber.

This invention discloses a manual wet clay sand pneumatic mold, relating to the field of casting technology. It includes a base, a pair of side plates, a top plate, a sand-bearing plate, a cylinder, a support plate, a mold core, and a sprue core. The pair of side plates are vertically and parallelly arranged on the left and right sides of the base. The top plate is horizontally positioned on top of the pair of side plates. The sand-bearing plate is fixedly positioned on the upper surface of the top plate. The cylinder is fixedly positioned at the center of the upper surface of the base. The support plate is horizontally positioned and fixedly connected to the output end of the cylinder. This invention features a reasonable structural design and reliable component connections, effectively optimizing the operation process, reducing labor intensity, and improving the quality and consistency of sand mold forming.