257results about "Foundry moulding apparatus" patented technology

The invention relates to the technical field of precision investment casting, in particular to an optical lens motor base precision forming die which comprises a fixing plate, a forming mechanism is arranged at the top of the fixing plate, and an upper die plate is arranged at the top of the forming mechanism; the forming mechanism comprises a butt joint unit arranged in the center of the top of the fixing plate, the butt joint unit comprises a main body fixedly connected with the fixing plate, a first ejector block is slidably connected to the position, close to the bottom, in the main body, and lifting blocks are arranged at the positions, located on the periphery of the first ejector block, in the main body; a butt joint rod is slidably connected to the center position in the first ejector block, and a pressing block is slidably connected to the position, below the butt joint rod, in the main body. Through linkage of the module assembly and the butt joint unit, the problems of wax mold demolding deformation cracking and parting surface steps are solved, and the integrity of the wax mold is guaranteed; by means of linkage of the cutter and the exhaust groove, residual wax is automatically cleaned, manual operation is not needed, shrinkage porosity is avoided, and the structural stability of the base is guaranteed.

The present application relates to wax mold technology field, disclose a kind of large thin-walled wax mold and for wet wax precision casting production process, including fixing frame, the fixing frame is provided with electric push rod, movable mould and fixed mould, the movable mould, fixed mould is provided with heat dissipation mechanism, the movable mould is provided with stripping mechanism, the fixed mould is provided with top pressure mechanism and wax injection port, the movable mould is also provided with rotating mechanism, the rotating mechanism includes motor and locking piece.The present application can demould the workpiece, while avoiding the workpiece from being stuck in the fixed mould, thereby greatly improving the practical convenience, and after demoulding the workpiece, water-based release agent can be sprayed in the fixed mould and movable mould, thereby avoiding the need for manual spraying of water-based release agent, and the forming effect and forming quality of the workpiece can also be improved, finally the locking piece can be automatically driven to contact and lock the fixed mould, thereby greatly improving the practicality and convenience of use.

The utility model discloses valve production wax repairing equipment facilitating feeding. The valve production wax repairing equipment comprises a supporting table, a collecting groove is formed in the right side of the supporting table, a discharging groove is formed in the inner top of the collecting groove, a plurality of blocking strips are fixedly connected between the inner walls of the left side and the right side of the discharging groove, and a collecting tray is placed on the discharging groove; a notch groove is formed in the left side of the supporting table, and the right end of the belt conveying piece extends into the notch groove; and the collecting mechanism is used for collecting waste wax, a vertical plate is fixedly connected to the upper end of the rear side of the supporting table, a placing plate is fixedly connected to the front side of the vertical plate, and a universal pipe is fixedly connected to the upper end of the vertical plate. In the actual using process of the equipment, a wax body can be conveniently moved to the workbench, a waste wax collecting structure is arranged, waste wax can be conveniently collected in a centralized mode, and the situation that the waste wax is scattered on the workbench is avoided.

A lost foam automatic feeding control device comprises a supporting block playing a supporting role, the front side of the supporting block is sequentially provided with a raw material inlet, a first inflation inlet and a second inflation inlet from left to right, and the rear side of the supporting block is provided with a raw material outlet corresponding to the raw material inlet and a first exhaust port corresponding to the first inflation inlet. The top end of the supporting block is provided with a first switch, a second switch and a third switch which are arranged in one-to-one correspondence with the raw material inlet, the first inflation inlet and the second inflation inlet. The device is simple in structure and convenient to use.

Sliding grooves are formed in the top of a machining table and close to the edges of the two sides, the sliding grooves are detachably connected with a door frame through sliding blocks in the sliding grooves, a telescopic rod is arranged below the door frame, the output end of the telescopic rod is detachably connected with a connecting plate, one side of the connecting plate is rotationally connected with a cutting frame, and the cutting frame is rotationally connected with the machining table. The foam processing device has the following advantages that foam needing to be processed is placed on the placing disc and pressed forcibly, so that the inserting column is inserted into the foam, the foam can be stably placed in cooperation with adsorption of the suction cup, then the driver is started to drive the placing disc to rotate, and therefore the foam is driven to rotate; the rotating foam can be matched with a cutting path, the cutting smoothness is improved, meanwhile, the cutting frame can be driven to move through the moving block, the telescopic rod and the motor, so that operation of different cutting paths is completed, the foam does not need to be adjusted through shutdown, and the cutting operation efficiency is improved.

The utility model relates to the field of investment casting, and discloses a wax mould forming device for precision castings, which comprises a machine table, a hydraulic rod is mounted at the top end of the inner wall of the machine table, a fixing mechanism is arranged at the bottom end of the inner wall of the machine table, the fixing mechanism comprises a positioning assembly and a fine adjustment assembly, the positioning assembly comprises a lower supporting plate, and the fine adjustment assembly comprises a lower supporting plate. The bottom end of the lower supporting plate is fixedly connected to the bottom end of the inner wall of the machine table, a fixing hole is formed in the top end of the lower supporting plate, a lower mold is placed at the top end of the lower supporting plate, an upper mold is connected to the top end of the lower mold in an inserted mode, and multiple sets of positioning rods are connected to the inner wall of the fixing hole in an inserted mode. According to the utility model, by arranging the adjustable fixing mechanism and the wax conveying assembly, the positions of the fixing mechanism and the wax conveying assembly can be freely adjusted during processing, the processing point position can be freely changed by adjusting the positions of the fixing mechanism and the wax conveying assembly, and meanwhile, the fixing mechanism can assist an operator in aligning a mold with a wax injection head.

The utility model belongs to the technical field of precision casting, and provides a regulating valve wax mold forming device which comprises a bottom plate, a side edge seat, a static mold, a movable mold, a sliding seat and a core cylinder. Wherein the side edge seat and the bottom plate are arranged side by side; the static die is fixedly connected to the bottom plate; the movable mold is slidably connected to the bottom plate and can abut against the static mold; the sliding seat is slidably connected to the side seat, and the sliding direction of the sliding seat relative to the side seat is perpendicular to the sliding direction of the movable mold relative to the bottom plate. The core cylinder is connected to the sliding base and can be matched with the movable mold and the static mold to form a cavity used for forming a target adjusting valve wax mold, and the static mold and the movable mold are further matched to form a wax injection opening communicated with the cavity.

The invention discloses a liquid cooling drive pump body investment casting wax mold production wax injection mold, which comprises an upper mold, a lower mold, a slide block, a mold cavity and a loose piece, the bottom of the upper mold is provided with a first mold cavity groove, the lower mold is arranged right below the upper mold, the top of the lower mold is provided with a second mold cavity groove, and the slide block is arranged in the second mold cavity groove. A plurality of sliding block mounting grooves are formed in the surface of the top of the lower mold around the outer side of the second mold cavity groove, the sliding blocks are arranged in the sliding block mounting grooves in a one-to-one correspondence mode, the mold cavity is used for forming the wax mold and jointly formed by the upper mold, the lower mold and the sliding blocks, and the multiple movable blocks jointly form an inner cavity complex structure of the wax mold. The cavity is formed by the upper mold, the lower mold and the multiple sliding blocks, the wax mold in the cavity adopts a one-time mold splitting forming process, and the wax piece is taken out by mutually positioning and combining the movable blocks and splitting the mold in the complicated structure of the inner cavity, so that water-soluble wax does not need to be used as an inner cavity core-pulling core, water-soluble wax does not need to be dissolved in water in the subsequent process, and split welding is not needed; the mold splitting efficiency is improved; and the cost is reduced.

The utility model relates to a kind of false core detection device for supercharger turbine wax mould production, the mould including upper mould and lower mould used in wax mould production, lower mould is provided with lower cavity, positioning sleeve for placing false core is equipped in lower cavity middle part, when false core is placed on positioning sleeve, the jack plug on false core is covered on positioning sleeve;Detection device includes: mounting bracket, is installed in the side of lower mould;Ranging sensor, install on mounting bracket, the emission path of the detection signal of ranging sensor passes through the upper opening of lower cavity, while emission path passes through the space occupied when false core is placed on positioning sleeve;Wherein, when false core is placed on positioning sleeve or false core is not placed on positioning sleeve, the distance signal output by ranging sensor is different, for judging whether false core is placed in lower cavity, so as not to carry out mould closing and wax pressing operation when not placing false core, realize the stable production of wax mould, improve the qualified rate of casting.

The invention discloses an automatic forming mold of a ball valve body wax mold, and relates to the technical field of valve production, the automatic forming mold comprises an upper mold base and a lower mold base, the upper mold base is connected with an upper mold core, the lower mold base is connected with a lower mold core, after mold closing, a mold cavity is formed between the upper mold core and the lower mold core, and the upper mold core is connected with the lower mold core. A main loose core for forming a main body is arranged on the lower mold core in a sliding manner; the main loose core comprises a driving core body, a first follow-up core, a second follow-up core, a follow-up seat and a driving seat, one end of the driving core body is fixedly connected with the driving seat, the first follow-up core and the second follow-up core are both connected with the follow-up seat, the driving core body is arranged on the follow-up seat in a sliding and penetrating mode, and the driving seat is connected with the first follow-up core and the second follow-up core. The peripheral surface of the driving core body is divided into a plurality of sliding surfaces which are connected in sequence along the circumferential direction; and the sliding surfaces are obliquely close to the center line of the driving core body along the direction deviating from the driving seat. The core pulling process is rapid and simple, automation can be achieved, and the production efficiency is high.

The application discloses a wax mold overturning device, which comprises the following steps: providing force support to the adhesion of the wax mold with an irregular top surface overturned to a downward state and a runner wax mold to achieve a stable wax mold overturning device. The wax mold is matched with a matching groove A and a matching groove B through a root boss and an extension boss respectively. Only the flat bottom surface of the tool body is in stable contact with the operation table plane, so that the wax mold with the irregular top surface is supported. Then, the runner wax mold is adhered to the upward bottom surface of the stable wax mold, which avoids the situation that it is difficult to obtain force support to achieve stability on the operation table plane by taking the irregular top surface as a force basis, and solves the problem that the two clamped force top surfaces and bottom surfaces of the casting wax mold are damaged due to the uneven clamping contact caused by the V-shaped clamping groove on the vice.

The utility model provides a turnover type slurry preparation barrel, and belongs to the technical field of investment casting equipment. The turnover type slurry preparation barrel comprises a barrel body, a fixing frame and a turnover device, a movable frame of the can body is fixedly connected with a can body, a bottom plate in a fixed frame is located at the bottom of the frame, and trundles are located on the bottom plate. The turnover device comprises a rotating wheel, an input shaft, a first mounted bearing, a second mounted bearing, a coupler, a speed reducer, an output shaft, a third mounted bearing and a turnover position fixing mechanism; the rotating wheel, the first mounted bearing, the coupler and the input end of the speed reducer are coaxially connected in sequence, and the first mounted bearing and the second mounted bearing are located on the input shaft and fixedly connected with the frame. The bottom of the speed reducer is fixedly connected with the frame; the input shaft is vertical to the output shaft; the output end of the speed reducer penetrates through the third mounted bearing through an output shaft, the output shaft is a flange type solid shaft, a flange at one end is fixed to the movable frame, and the turnover position fixing mechanism is located on the input shaft. The device has the advantages of being simple in overall structure and convenient to operate manually, the labor intensity of workers can be reduced, waste is reduced, and cost is reduced.

The utility model discloses an intelligent-control automatic wax pressing and injecting device for accessories, and relates to the field of accessory processing equipment. The intelligent control accessory automatic wax pressing and injecting device comprises a control box, a material injecting unit and a forming unit, a high-frequency electromagnetic induction heater is arranged in the material injecting unit, a material injecting pipe is fixedly installed at the bottom of the high-frequency electromagnetic induction heater, and a servo linear motor is arranged at the top of the high-frequency electromagnetic induction heater. According to the intelligent-control automatic wax pressing and injecting device for the ornaments, wax at the bottom of the storage hopper falls into a high-frequency electromagnetic induction heater to be rapidly melted through the high-frequency electromagnetic induction heater, meanwhile, a servo linear motor drives a material injecting pipe to be inserted into a mold, and then the servo linear motor drives a material pushing part to continue to move downwards; the material pushing part injects the molten wax material into the mold through the material injection pipe, wax pressing and injection operation is completed, and therefore the wax material is rapidly and evenly molten, meanwhile, the speed and pressure can be effectively controlled during pressing and injection, and the yield is increased.

The utility model discloses a runner, core box and loose piece integrated device, and belongs to the technical field of casting. A runner core box loose piece integrated device comprises a loose piece set, the two sides of the back of the loose piece set are convex faces, the convex faces are dovetail type convex faces, the convex faces and the loose piece set are integrally formed, the loose piece set comprises a loose piece I and a loose piece II, the bottom of the loose piece I is connected with the top of the loose piece II through an adhesive, and the bottom of the loose piece I is connected with the top of the loose piece II through the adhesive. And the back surface of the loose piece group is connected with the runner core box mold in an embedded manner. According to the utility model, the movable block I and the movable block II are firstly assembled and then are embedded into the runner core box mold for curing, so that the movable blocks are convenient to mount, the mounting efficiency of the movable blocks is improved, the positioning effect is good, the positions of the sand core movable blocks are not staggered, and the defects of loose positions, missing blocks and the like are greatly improved.

The invention relates to a combined die and method for temperature control cooling of a single-crystal hollow turbine blade wax mould, the combined die comprises a die main body, a main body extension section, a sliding combined table and a temperature control cooling channel, the die main body is provided with a placing surface matched with the blade wax mould and a fixing column for positioning the single-crystal hollow turbine blade wax mould; the main body extension section is connected with the mold main body, and a sliding rail is arranged on the upper surface of the main body extension section; the sliding combination table is arranged on the sliding rail and can be subjected to sliding position adjustment along the sliding rail, and a spiral section positioning groove and a seeding section mounting groove which are matched with a crystal selector wax mold are formed in the sliding combination table. And the temperature control cooling channel is arranged in the mold main body and the main body extension section, and the mold main body is cooled through cooling liquid in the temperature control cooling channel. Compared with the prior art, the problems of warping, deformation and misalignment of a crystal selection section and a blade main shaft in the preparation process of the single-crystal hollow turbine blade wax mold can be solved.

The invention discloses a wax mold welding device with a wax mold cleaning function and a wax mold assembling method.The wax mold welding device with the wax mold cleaning function comprises a first containing frame, a first mechanical arm, an assembling and welding mechanism and a mold cleaning assembly, and the first containing frame is used for storing a main pouring gate. A grabbing assembly is arranged on the first mechanical arm and used for grabbing the main pouring gate and driving the main pouring gate to move. The assembling and welding mechanism is used for welding the wax mold and the main pouring gate. The module cleaning assembly is internally provided with cleaning liquid, and during use, the first mechanical arm can drive the welded main pouring gate and the wax mold to enter the module cleaning assembly to be cleaned. The first manipulator grabs the main pouring gate on the first placing frame to be matched with the assembly welding mechanism to complete the welding operation of the wax mould to form a complete module, and the first manipulator conveys the complete module into the module cleaning assembly to be automatically cleaned after welding is completed, so that manual cleaning by workers is not needed, and the cleaning efficiency is improved while the cleaning consistency is guaranteed. And the production efficiency of products is effectively improved.

The utility model discloses a mould for manufacturing a wax mould of a mask frame, which comprises an upper mould, a first middle mould, a second middle mould and a lower mould, the first middle mould and the second middle mould are oppositely arranged, a cavity is formed among the upper mould, the first middle mould, the second middle mould and the lower mould, and the cavity is used for forming the wax mould of the mask frame; a first insert is arranged between the first middle mold and the lower mold, a second insert is arranged between the second middle mold and the lower mold, each of the first insert and the second insert is provided with a first core-pulling part, and the first core-pulling parts are used for forming the first mounting hole; the upper mold is provided with a second core-pulling part, the second core-pulling part is used for forming the second mounting hole, the lower mold is provided with a third insert, the third insert is provided with a third core-pulling part, and the third core-pulling part is used for forming the third mounting hole. According to the utility model, the consistency of the shape and the size of each mask frame can be improved, and defective products are reduced.

The utility model discloses a longitudinally-arranged wax injection machine which is used for solving the problems that according to some longitudinally-arranged wax injection machines mentioned in the background technology, molds need to be manually placed on an operation table and then manually taken out, and the mode is labor-consuming; and the position of the mold needs to be manually and continuously adjusted, so that the mold corresponds to a wax injection nozzle of a wax injection device up and down, and the operation is troublesome. Comprising a working table and a wax injection device arranged on the working table, a disc is rotationally arranged in the working table, four clamping assemblies are arranged on the disc, each clamping assembly comprises two mounting plates, two air rods and two clamping plates, the two mounting plates are fixedly connected with the disc, the two air rods are fixedly connected with the two mounting plates, the telescopic ends of the two air rods penetrate through the two mounting plates, and the two clamping plates are fixedly connected with the two air rods. The two clamping plates are fixedly connected with the telescopic ends of the two air rods, and the two clamping plates are opposite in orientation. A mounting seat is arranged in the disc through a bearing, and a pushing piece is arranged on the mounting seat; and a wax injection nozzle of the wax injection device is vertically opposite to one of the clamping assemblies under the rotation of the disc.

This invention provides a ring-shaped ceramic core mold, relating to the field of ceramic core mold design technology. The invention provides a method where one end of a first pull block is fixed to an upper cover plate, and the other end of the first pull block abuts against a lower template assembly. The first pull block, the upper template, and the lower template assembly form a molding cavity communicating with the feed inlet. Ceramic core slurry enters the molding cavity through the feed inlet, forming a ring-shaped ceramic core within the cavity. During mold removal, the upper cover plate is lifted, causing the first pull block to be pulled out from the through hole. After the upper cover plate rises to a certain height, the upper template rises together due to the action of a first elastic element, achieving a staged rise of the first pull block and the upper template. Compared to the traditional method of raising the pull block and the upper template simultaneously, the ceramic core experiences less friction, effectively preventing the ceramic core from being carried out by the upper template due to excessive friction.

The invention relates to the technical field of full mold casting, and provides a casting method of a large-scale automobile covering part GGG70L nodular cast iron stamping die, which comprises the following steps: firstly, manufacturing a model, and then manufacturing conformal chillers according to the molded surface of the model, and arranging the conformal chillers in a large area; smelting molten iron, adding alloy raw materials, and regulating and controlling the proportion of the alloy raw materials; then molten iron is subjected to spheroidizing inoculation and then is poured, after pouring, cooling in the eutectic stage is accelerated through external forced blowing heat dissipation, and through large-area use of shape-following chilling blocks, the profile cooling speed in the eutectic cooling stage is increased, the graphitization reaction is remarkably inhibited, growth of carburizing body nucleation and pearlite is promoted, and the pearlite nucleation rate is remarkably increased; ferrite precipitation is inhibited, and finally the pearlite content in a molded surface area is stabilized to be 90% or above; and finally, cooling to 200 DEG C, opening the sand box, taking down the test bar on the casting, and carrying out stretching detection and metallographic inspection. And multi-dimensional cooperative regulation and control are realized, so that the pearlite content is greatly increased, and the balance of mechanical properties is realized.

The application relates to the technical field of casting wax, and discloses uninterrupted low-temperature wax precision casting mechanism, which comprises a hollow shell, a stepping motor, a cylindrical disc, a pouring groove and a square frame. The cylindrical disc is rotatably arranged in the hollow shell. The hollow shell is provided with the stepping motor at one end. The stepping motor extends to the inside of the hollow shell and is connected with the cylindrical disc at one end. Two or more pouring grooves are uniformly arranged on the annular side of the cylindrical disc. Two or more square frames are uniformly arranged on the annular side of the cylindrical disc. The low-temperature wax precision casting mechanism can pour wax oil into the pouring grooves through the guide pipe, realizes the purpose of low-temperature wax precision casting, adjusts the rotation of the cylindrical disc through the stepping motor, facilitates pouring of the next pouring groove, and moves the limiting rod into the limiting hole by moving and extruding the inclined block two and then moving the inclined block one.

The utility model relates to an evanescent mode mold for casting a power takeoff shell with an embedded oil duct, and effectively solves the problems that sand filling molding is difficult to carry out on the oil duct part of the shell in a traditional sand mold casting mode, the accurate oil duct part is inconvenient to simulate, and deviation is easy to generate. According to the evanescent mode mold for casting the power takeoff shell containing the embedded oil duct, through the arrangement of the bottom mold, the top mold, the power takeoff shell evanescent mode and the oil duct pipeline, the oil duct pipeline can be directly placed at the corresponding parts in the bottom mold and the top mold in advance; the oil duct pipeline is directly embedded in the power takeoff shell evanescent mode, it can be guaranteed that the fixing position of the oil duct pipeline is accurate, the power takeoff shell and the oil duct pipeline can be integrally cast and formed through the power takeoff shell evanescent mode subsequently, and therefore the problem of oil duct sand filling in the traditional sand mold casting process is effectively solved; and the casting mode of the power takeoff shell is simpler and more convenient, and the power takeoff shell can be more conveniently cast.

This invention provides a core box mold for casting large motor bases, belonging to the field of casting mold technology. The core box mold is manufactured based on the five-part structure of a large motor base sand core. The core box mold includes an inner cavity air hole sand core 1# core box for manufacturing inner cavity air hole sand core 1#, an outer cavity sand core 2# core box for manufacturing outer cavity sand core 2#, an outer cavity sand core 3# core box for manufacturing outer cavity sand core 3#, an outer cavity sand core 4# core box for manufacturing outer cavity sand core 4#, and an outer cavity sand core 5# core box for manufacturing outer cavity sand core 5#. These five core boxes are independent of each other. This invention provides a corresponding core box mold comprising five parts for the new integrated sand core structure of large motor bases, solving the manufacturing problem of the new integrated sand core and creating conditions for achieving boxless casting of the base.

The utility model discloses casting slag ladle manufacturing equipment which comprises a ladle body, a trunnion, a ladle body reinforcing rib, a tank car fixing lug and a ladle bottom radian, the ultrasonic flaw detection percent of pass of the trunnion reaches 100% through an accurate trunnion pre-embedding device and a reasonable sand mould manufacturing process, and the structural strength and rigidity are enhanced through unique ladle body design and reinforcing rib layout. The bearing capacity is improved, deformation is reduced, and the service life is prolonged. In the aspect of the production process, the sand mold manufacturing mold is split by the horizontal center line of the tank car fixing lug, and sand mold manufacturing is efficiently and accurately completed; the box closing device is matched with the pouring system, smooth box closing pouring is guaranteed, the rejection rate is reduced, the production period is shortened, and the efficiency is improved. In the aspect of cost control, the equipment process is optimized, the yield is improved, the waste loss is reduced, meanwhile, equipment such as a sand mold manufacturing mold is durable, the maintenance cost is reduced, the safety accident risk caused by slag ladle faults during steelmaking slag conveying is effectively reduced, and the personnel safety and the production order are guaranteed.

The utility model discloses a self-cleaning exhaust assembly of a cold core box ejector rod. The self-cleaning exhaust assembly comprises a cold core box body, an ejector rod and a driving device, a cleaning rod is arranged in the cold core box body and transversely penetrates through the ejector rod from openings in the two sides of the ejector rod, when the ejector rod moves up and down, the exhaust channel moves up and down relative to the cleaning rod, and when the interior of the exhaust channel is blocked by resin sand, the cleaning rod is closed. The cleaning rod can scatter gathered and blocked resin sand so that the resin sand can be discharged out of the exhaust channel from the opening in the bottom or the two sides of the exhaust channel, and the self-cleaning effect on resin sand blocking is achieved.

The utility model discloses a foam forming mould for evanescent mode, which relates to the technical field of evanescent mode processing and comprises a mould frame component and a lower mould component, the lower mould component is mounted in the mould frame component, an upper mould component is arranged at the top of the lower mould component, and a first hydraulic part is arranged on one side, far away from the upper mould component, of the lower mould component. A second hydraulic part is arranged on the side, away from the lower die assembly, of the upper die assembly. According to the foaming forming mold for the evanescent mode, the first lower side plate, the second lower side plate, the first upper side plate and the second upper side plate which are made of heat conduction materials are installed on the side edges of the lower mold base and the upper mold base correspondingly, and therefore after internal foaming materials are injected, condensation is assisted, and good structural heat dissipation is provided; and a first butt joint inserting pile and a second butt joint inserting pile are matched with a first butt joint inserting hole and a second butt joint inserting hole, so that the structural stability of the lower die assembly and the upper die assembly after butt joint can be guaranteed to the maximum extent.

The utility model provides a valve wax pattern injection molding device which comprises a supporting base, a storage box body is arranged on the right side face of the supporting base, limiting rods are arranged at the left end and the right end of the upper surface of the supporting base, a supporting plate is arranged at the upper ends of the limiting rods, and a first telescopic air cylinder is embedded in the upper middle of the supporting plate; a lifting plate is arranged at the tail end of a telescopic rod of the first telescopic air cylinder and arranged on the limiting rod in a sleeving mode, a mold is arranged on the upper surface of the supporting base, and an injection molding piece used for achieving mold injection molding is arranged at the right end of the lifting plate. According to the wax mold forming device, wax water can be conveyed into the forming mold, and wax mold forming is achieved.

The utility model relates to the technical field of casting, discloses an improved core box structure, and aims to solve the problem that a traditional core box is short in service life due to the fact that vertical ribs are thin and easy to damage. The core box comprises an upper cover, a core box bottom, side edges and vertical ribs, four auxiliary supporting legs are additionally arranged at four corners of the upper cover, and the height of the auxiliary supporting legs is higher than that of the original vertical ribs; meanwhile, circular grooves are formed in the corresponding positions of the side edges, and the supporting legs are embedded into the grooves in the assembling process to form a stable supporting structure. When the core box upper cover is horizontally placed, the auxiliary supporting legs completely bear the weight, the vertical ribs are prevented from making contact with the ground, and therefore the hidden danger that the vertical ribs are damaged due to stress is eliminated. The auxiliary supporting legs are preferably made of cylindrical wear-resistant metal or engineering plastic, and the depth of the circular grooves is 1.2 times of the length of the supporting legs, so that the embedding stability is ensured. By optimizing stress distribution, the service life of the core box is remarkably prolonged, and the core box is simple in structure, easy to process and assemble and suitable for large-scale application in the field of sand casting.

A sand core mold includes an upper core box and a lower core box integrally formed. The upper core box includes a first side and a second side opposite to each other in a first direction. The first side has a sand injection hole, and the second side is recessed to form a first sand mold groove. The lower core box includes a third side and a fourth side opposite to each other in the first direction. The third side is recessed to form a second sand mold groove. The second sand mold groove and the first sand mold groove form a cavity, which communicates with the sand injection hole. Along the first direction, the size of the cavity in the second direction gradually increases from the end closer to the first side to the end closer to the fourth side. The first direction is perpendicular to the second direction. In this application, by integrally forming the upper and lower core boxes, the number of core boxes is reduced, the mold design and manufacturing cycle is shortened, thereby reducing material and processing costs. The cavity forms a draft angle with a reverse slope, so demolding can be completed simply by separating the upper and lower core boxes, reducing the breakage rate of the sand core.

The utility model relates to the field of cold core box dies, and discloses a lower core box convenient for die assembly, which comprises a lower die and an upper die, an upper forming die is arranged on the left surface of the upper die, a lower forming die is arranged on the right surface of the lower die, the lower forming die is matched with the upper forming die, a positioning groove is arranged on the right surface of the lower die, and the positioning groove is matched with the upper forming die. A positioning mechanism is arranged on the left surface of the upper die and comprises a positioning assembly and a lubricating assembly, the positioning assembly comprises a fixing sleeve, the left end of the fixing sleeve penetrates through and is slidably connected with a sliding sleeve, the left surface of the sliding sleeve is fixedly connected with an ejector block, and the right surface of the fixing sleeve is fixedly connected with an oil storage sleeve. According to the utility model, the telescopic positioning assembly is arranged, and the sliding sleeve can be supported by using the reset spring, so that the ejector block can firstly enter the positioning groove during mold closing, positioning can be realized before the upper forming mold and the lower forming mold are in contact, and the whole device has a better positioning effect during use.