60 results about "Shell molding" patented technology

The invention relates to the technical field of draining basket shell preparation, in particular to a multifunctional draining basket shell forming preparation process which comprises the following steps: (1) raw material pretreatment: selecting a PET (polyethylene terephthalate) raw material, and drying the PET raw material by a dryer for 6 hours; (2) melting treatment: adding the PET raw material treated in the step (1) into an injection molding machine, and uniformly melting the PET material by controlling the heating temperature of a screw rod; and (3) injection molding: injecting the molten material obtained in the step (2) into a mold, controlling the mold temperature of a hot runner to be 120 DEG C, and adopting a centrosymmetric pouring gate. The invention aims to solve the problems that when the draining basket is produced, residual moisture which is not removed can be quickly vaporized in the heating link of draining basket shell molding, gas generated by vaporization cannot be discharged in time, and the production cost is low. And obvious bubbles, crazes and other defects can be formed in the product or on the surface of the product.

The application discloses a shell slurry performance online quantitative evaluation system and method based on wax mold surface modification, and the system comprises a multi-state wetting wax mold preparation module, an automatic coating and multi-parameter rheological observation module and a precise wax residue analysis module which are sequentially connected and cooperatively work; the multi-state wetting wax mold preparation module selectively manufactures patterned areas with different hydrophilic and hydrophobic characteristics including hydrophilic, hydrophobic and super-hydrophobic on the surface of a standard test wax mold by controlling ultraviolet laser processing parameters; the automatic coating and multi-parameter rheological observation module is used for automatically completing slurry coating and quantifying the leveling behavior of the slurry based on machine vision; the precise wax residue analysis module adopts laser-induced breakdown spectroscopy technology and is used for quantitatively detecting the wax residue on the inner surface of the shell after dewaxing. The application also discloses an online quantitative evaluation method, which can provide direct and reliable data support for optimizing the slurry formula and the shell preparation process, thereby realizing automatic, high-precision and low-cost online quality control and reducing the casting scrap rate from the source.

This utility model discloses a display shell molding mold, including an upper mold, a lower mold, a first molding mechanism, and a second molding mechanism. The upper mold has a cavity, and the first molding mechanism includes a first molding part and a first displacement device. The first molding part has a first molding surface. The lower mold has a core, and the second molding mechanism is disposed on the lower mold. The second molding mechanism includes a second molding part, a mounting base, and a second displacement device. The second molding part has a second molding surface. A first release coating is provided on both the first molding surface and the second molding surface. The core, the cavity, the first molding surface, and the second molding surface form an injection mold cavity. In this way, the design of each component facilitates the ingenious arrangement of the overall mold structure. Combined with the setting of the first release coating, the contact friction between the corresponding molding slider and the injection molded product is reduced, thereby avoiding damage when the injection molded product separates from the corresponding slider, ensuring the molding quality of the injection molded product, and meeting the user's needs.

The utility model discloses a draw-bar box shell forming device which comprises a device body, an isolation frame is fixedly arranged on the inner wall of the device body, a die holder is arranged on the inner wall of the isolation frame in a lap joint mode, a first lifting assembly is arranged at the bottom of the die holder, and a fixing assembly is arranged at the top of the device body. According to the draw-bar box shell forming device, a limiting rod is pulled out of an insertion hole, an annular cutter can be replaced, after replacement, a pull ring is loosened, a spring can automatically push a connecting rod to move leftwards, the connecting rod pushes the limiting rod to be inserted into the insertion hole, and installation is completed; according to the draw-bar trunk shell edge material cutting device, redundant edge materials on a draw-bar trunk shell can be effectively cut conveniently, meanwhile, when the ring cutter is disassembled and assembled, tools are not needed for operation, the operation is simple and convenient, the situation that due to the fact that the ring cutter is fixed through bolts, threads are prone to being abraded and loosened, and the ring cutter shakes or falls off is avoided, and the safety of equipment is improved.

This invention relates to the field of injection mold technology, and provides a plastic shell molding mold, including a fixed mold base plate, a movable mold base plate disposed on one side of the fixed mold base plate, and a base plate disposed on the side of the movable mold base plate away from the fixed mold base plate. This invention, through the provision of a fixing structure, places two sets of slide rails parallel and symmetrically on one side of the fixed mold base plate and the movable mold base plate. Moving bolts into the mounting groove allows the slide rails to be fixedly connected to the fixed mold base plate and the movable mold base plate respectively via bolts. Both ends of the slide rails are chamfered, allowing the slide rails to quickly move into the sliding groove, thereby enabling the punch and die to be quickly installed and fixed. Under the elastic force of a first return spring, the top of the positioning block moves into the positioning groove, allowing the punch and die to engage with the slide rails respectively via the positioning block, thus enabling the punch and die to be quickly positioned. Replacement is time-saving and labor-saving, thereby improving the working efficiency of the plastic shell molding mold during use.

The present invention discloses a die-casting mold for an aluminum alloy shell of an automobile structural part, and the present invention relates to the technical field of die-casting molds. During the injection process, the material between the injection pipe mouth and the shell molding cavity is not completely separated. After cooling, the material at the connection between the injection pipe mouth and the molding cavity is cooled and shaped at the same time, resulting in adhesion between the molded shell and the material in the injection pipe, resulting in blockage of the injection pipeline. Therefore, after stopping the injection, the baffle and the cavity cylinder are reset and moved upward, and the excess material is overlapped through the gap, so that the material in the molding cavity is separated from the material in the injection pipe, avoiding adhesion between the material in the pipeline and the material in the molding cavity after cooling, resulting in blockage of the injection pipeline and increased difficulty in demoulding. At the same time, the heat insulation ring blocks the internal heat from being conducted to the cooling cavity, so that the material in the injection pipe can be maintained within a stable temperature range when the material in the molding cavity is cooled.

The utility model discloses an electronic cigarette shell forming die. The electronic cigarette shell forming die is characterized by comprising an upper die, a lower die and a forming sliding block mechanism, the forming sliding block mechanism comprises four forming sliding blocks, an inclined guide column and an elastic reset piece, the lower mold is provided with a mold core, the four forming sliding blocks are arranged around the four side faces of the mold core, the three forming sliding blocks are provided with first forming faces, the mold core is provided with a second forming face, the second forming face is provided with a cigarette holder forming part, and the other forming sliding block is provided with an extending part. The extending part is provided with a third forming face, and the mold core is provided with a first sliding groove. The inclined guide pillar is arranged on the upper die; the upper die is provided with a cavity, and the cavity is provided with a fourth forming surface; an injection mold cavity is defined by the first to fourth molding surfaces; thus, through the design of all the components, integrated injection molding of the cigarette holder and the shell is achieved, the follow-up assembly operation between the shell and all the components is facilitated, and therefore the production efficiency and quality stability of products are improved, the yield of injection molding workpieces is guaranteed, usability is good, and the application range is wide.

The present invention relates to the technical field of fuel tank processing, and in particular, to a fuel tank processing method, a fuel tank, and a vehicle. The processing method comprises: based on a rectangular material plate, notches are respectively processed at both ends of the first side of the material plate. After the notch cutting is completed, the material plate is bent so that the first side and the second side of the material plate have an overlapping area to form a cylindrical shell. Based on the shell molding, the overlapping area is welded by resistance welding. Based on the completion of welding on the overlapping area, the end cover is positioned at the end of the corresponding shell so that the end cover and the shell have a fitting area. Based on the completion of positioning the end cover, the fitting area is welded by resistance welding. Based on the completion of welding on the fitting area, filler welding is performed along the edge line of the notch to form a welding portion, and the end cover welding is completed. Based on the completion of welding of both end covers to the shell, the fuel tank processing is completed. In this way, the problem of the end cover of the fuel tank being not firmly welded to the shell is solved.

A tooling assembly (102) for forming a can end shell includes an upper tool assembly (104), a lower tool assembly (106), and at least one force measuring device (132) within at least one of the upper tool assembly (104) or the lower tool assembly (106). The upper tool assembly (104) and the lower tool assembly (106) cooperate in the can end shell forming process to form the can end shell from a metal blank. The force measuring device (132) measures the load in the upper tool assembly (104) and / or the lower tool assembly (106). A can end shell forming method includes receiving a metal blank between an upper tool assembly (104) and a lower tool assembly (106), coordinating the upper tool assembly (104) with the lower tool assembly (106) so that at least one upper forming surface and at least one lower forming surface form the metal blank into a can end shell, and measuring the load using a force measuring device (132).

The invention relates to the field of metal investment precision casting, in particular to a precision casting shell modeling and positioning device and a using method. The positioning device is of a semicircular structure composed of an inner positioning layer and an outer positioning layer, the outer positioning layer and the inner side of a sand box are positioned in a contact mode, the outer positioning layer is matched with the inner side of the sand box in shape and tightly attached to the inner side of the sand box, the outer positioning layer and the inner positioning layer are fixedly connected, and the inner positioning layer and the fixed position of the outer side of a shell are positioned in a contact mode. And the shape is consistent with that of the outer side of the shell positioning part. After the shell is put into the sand box by using the positioning device, the position of the shell in the sand box can be determined, the relative height of outer layer positioning and inner layer positioning in the positioning device can be adjusted according to the molding requirement of the shell, and then the spatial position of the shell in the sand box is fixed; and the purpose of unifying the spatial positions of all the shells in the sand box is achieved. The positioning device is simple in structure, low in cost, high in practicability and remarkable in economic benefit.

The invention discloses a method for producing a high-precision corrosion-resistant casting through shell mold casting and application of the method, and belongs to the technical field of casting. The method comprises the steps of shell mold manufacturing, shell boxing, melting casting and casting taking-out, specifically, precoated sand containing chromite sand, modified phenolic resin and the like is prepared, after shell manufacturing, steel shots are filled for compaction, molten iron containing C, Si, Ni, rare earth and the like is cast at the temperature of 1350-1400 DEG C, and after cooling, the casting is taken out and cleaned. According to the method, the corrosion resistance, the precision and the mechanical property of the casting are improved through material component collaboration and process optimization, and the method is suitable for the fields of pump valves, marine equipment and the like.

The utility model discloses a membrane shell forming device which comprises an operation table, a movable frame, a fixed frame and a die, the movable frame is connected to one side of the top of the operation table in a sliding mode, the fixed frame is connected to the other side of the top of the operation table in a rotating mode, the die comprises a female die and a male die, and the female die and the male die are oppositely arranged. The female die and the male die are arranged on the movable frame and the fixed frame respectively, a feeding assembly is arranged at the position, corresponding to the female die, of the top of the movable frame, and the feeding assembly conveys forming raw materials into the die. According to the mold, the mold shell demolding convenience is improved, the mold shell molding operation is repeated, the mold shell molding efficiency is improved, efficient operation procedures are formed, and the operation convenience and high efficiency are improved.

The invention relates to the technical field of automobile part forming, in particular to an injection mold for a vehicle-mounted electronic tag shell, the injection mold comprises a fixed mold base and a movable mold base, the fixed mold base is provided with a middle mold core, a first slide and a second slide, and the middle mold core, the first slide and the second slide can define a side shell forming cavity; the movable mold base is provided with a top shell forming cavity used for injection molding of the top of the vehicle-mounted electronic tag shell. The middle mold core is provided with a first gas needle capable of moving up and down, and the first gas needle is connected with a gas generating device through a first gas pipe; and a first gas outlet is formed in the top of the peripheral side face of the first gas needle and can inject high-pressure gas between the middle mold core and the inner side face of the vehicle-mounted electronic tag shell, and the pressure of the high-pressure gas is smaller than the glue injection pressure maintaining pressure. The invention further relates to an injection molding method of the vehicle-mounted electronic tag shell. Compared with the prior art, the problem that a clamping opening has bright marks after the vehicle-mounted electronic tag shell is subjected to injection molding can be solved.

The invention discloses an anti-falling hardware injection mold, comprising an injection bottom mold and an injection upper mold. The injection bottom mold is provided with a bottom shell forming groove, a glue flow groove and a mounting groove. The injection upper mold comprises a base, a boss and a mounting column. The boss is arranged on the base, and the mounting column is mounted on the boss. A copper nut of a mounting shell is placed on the mounting column, and then the base is buckled on the injection bottom mold. The outer wall of the boss and the inner wall of the bottom shell forming groove together form an injection cavity. The mounting column is accommodated in the injection cavity, and the mounting column abuts against the bottom of the mounting groove. The glue flow groove is used to introduce plastic into the injection cavity. The copper nut is placed on the mounting column for injection molding, so that the shell and the copper nut can be formed into a whole without the need for post-processing to press the copper nut into the shell, thereby reducing the process, thereby improving the production efficiency, reducing the production cost, and improving the production stability of the mounting shell, thereby improving the production quality of the mounting shell, and effectively preventing the copper nut from falling off from the shell.

The utility model relates to the technical field of shell forming equipment, in particular to a capacitor equipment production shell forming device which comprises a base, a limiting mechanism is arranged in the middle of the top end of the base and comprises a plurality of supporting rods, a fixing plate is fixedly installed on the tops of the supporting rods, and the fixing plate is arranged on the base. A plurality of evenly-distributed movable grooves are formed in the middle of the top end of the fixing plate, and movable blocks are installed in the movable grooves in a sliding mode. The device has the beneficial effects that other moving blocks can be driven to move in the moving grooves by controlling the air cylinders, the air cylinders are matched, the connecting rods and the rotating plates, the moving blocks are matched with the connecting plates to drive the limiting blocks to move towards the center of the supporting frame, materials for capacitor equipment production shells can be limited and fixed, centering type limiting can be conducted on machining materials, and the machining efficiency is improved. It is guaranteed that the center of a machined material is located at a fixed position, and it is avoided that during machining production, the material moves, and the machining quality of the shell is affected.

The utility model relates to an automobile P-gear button injection mold which comprises a first-color injection molding module capable of carrying out injection molding on a base shell and a second-color injection molding module capable of carrying out injection molding on a panel, and the first-color injection molding module comprises a first upper mold and a first lower mold which are oppositely arranged; the second color injection molding module comprises a second upper mold and a second lower mold which are oppositely arranged, a first upper mold core is arranged on the first upper mold, a second upper mold core is arranged on the second upper mold, the second upper mold core is further provided with a detachable P-shaped insert, and the first lower mold and the second lower mold are the same in structure; a lower mold core matched with the first upper mold core to form a base shell forming cavity is arranged on each of the first upper mold and the second upper mold, and the first lower mold with the injection molding base shell is matched with the second upper mold core of the second upper mold to form a panel forming cavity after being interchanged with the vacant second lower mold; and the P-shaped insert also abuts against the surface of the injection molding base shell below and is used for forming a hollow P-shaped character on the injection molding panel. And the 'P' character is directly molded in the injection molding process.

The invention relates to the technical field of plastic state forming, and discloses a multi-cavity injection mold which comprises a fixed mold, a movable mold, a mold core and an insert, the insert comprises a cigarette holder mold body and a mold base, the cigarette holder mold body comprises a cigarette cartridge bin molding part and a curved-surface suction nozzle shell molding part, a cigarette cartridge bin water path is formed in the cigarette cartridge bin molding part, and a curved-surface suction nozzle shell is formed in the curved-surface suction nozzle shell molding part; a curved-surface suction nozzle waterway is formed in the curved-surface suction nozzle shell molding part; the curved-surface suction nozzle water path comprises a curved-surface suction nozzle water inlet water path and a connecting part which is vertically arranged on the cigarette cartridge bin molding part and the curved-surface suction nozzle shell molding part; the curved-surface suction nozzle water outlet waterway is vertically arranged at the connecting part of the cigarette cartridge bin molding part and the curved-surface suction nozzle shell molding part; the linear water path is positioned in the curved-surface suction nozzle shell molding part and is close to one side edge of the smoke cartridge molding part; and the elliptic arc waterway I is positioned in the curved surface suction nozzle shell molding part. The flow speed of cooling water in a narrow water path is slowed down, the heat exchange time is prolonged under the condition of the same water volume of the cooling water, resource waste is reduced, and the cooling efficiency of the insert is improved.

The invention relates to the technical field of casting equipment, in particular to precoated sand shell mold casting equipment. The invention provides precoated sand shell mold casting equipment which comprises a base, rolling wheels which are evenly distributed are rotatably connected to the base in the horizontal direction and used for bearing and conveying a lower mold, guide frames which are symmetrically distributed are fixedly connected to the base, and first sliding blocks are slidably connected to the interiors of the guide frames in the vertical direction; an upper die is connected between the symmetrically-distributed first sliding blocks in a horizontal sliding mode, and a support is fixedly connected to the base. The toggle rod linkage mechanism is driven by the cam, so that stable lifting of the upper mold is realized; during mold closing, through rapid approaching and low-speed high-pressure reinforcement, idle stroke is shortened, mold locking force is amplified, and sand shooting leakage is prevented; mold opening is slowly relieved from a dead point, and a shell mold or a mold is prevented from being damaged; the toggle rod is mechanically self-locked after going through the dead point, the motor stops rotating, the mold is still closed, safety and stability are improved, energy consumption is reduced, and the problems that mold opening and closing of traditional equipment are prone to being stuck, and stability is poor are fundamentally solved.

The utility model belongs to the field of trunk shell stamping dies, and particularly relates to a trunk shell die-forming ejection device which comprises a stamping die body and a pressing mechanism installed on the surface of the stamping die body, the stamping die body comprises a bottom table, and the top of the bottom table is fixedly connected with a lower die. An upper mold is mounted at the top of the lower mold, and a vertical frame is fixedly connected to the surface of the bottom table; according to the utility model, deformation is recovered after the tension spring is stretched and deformed, the reset spring is recovered after the reset spring is compressed and deformed, meanwhile, the transverse plate is pushed to move upwards, the vertical plate is driven to move upwards through the movement of the transverse plate, the pushing plate is driven to move through the movement of the vertical plate, and the ejection block extends into the open slot to eject the molded mold; the problem that the stamping effect is affected due to the fact that the stamped luggage case shell is usually placed in a bottom forming die and is difficult to take out from the bottom forming die under the stamping force is solved.

The invention provides a molding and assembling method of an airborne electronic pod. The molding and assembling method comprises the following steps: 1, molding and assembling the airborne electronic pod; radome forming: adopting a skin honeycomb sandwich structure, and obtaining the radome through hot-pressing curing forming; shell forming: adopting a skin honeycomb sandwich structure, pre-embedding precast blocks in a local area, and performing hot-pressing curing forming to obtain a shell; and forming the electronic pod: positioning by using a tool through a molded surface and a hole site, and gluing and riveting the shell and the antenna housing to obtain the electronic pod. In addition, the invention further discloses the airborne light-weight electronic pod, and the airborne light-weight electronic pod is prepared by adopting the molding method. The airborne light-weight electronic pod is light in weight and good in consistency, and the manufacturing method of the airborne light-weight electronic pod is simple and convenient.

This utility model relates to a 3C electronic product shell molding mold applied in the field of mold manufacturing technology. It realizes the process of placing the electronic product component on a pressure plate within a tray, then using a controller to activate a hydraulic cylinder to drive the upper mold to stamp the electronic product component. After stamping, an electric push rod is activated to push the pressure plate upwards. A removable protective sleeve is fitted onto the surface of the pressure plate. As the pressure plate moves upwards, rollers on the sidewall of the protective sleeve roll synchronously upwards within a groove, reducing friction with the inner wall of the lower mold. When the pressure plate pushes the formed product shell outside the lower mold, a servo motor drives a rotating shaft to rotate a robotic arm and an electric gripper. The electric gripper is rotated to a position above the product shell, and then automatically clamps and removes the product shell. The rotating shaft is then driven to reset the robotic arm and electric gripper to fit against the sidewall of the worktable, avoiding interference with the upper mold operation.

This application relates to the field of unmanned aerial vehicle (UAV) technology, and more particularly to a high-strength carbon fiber shell molding process for UAV fuselages. The high-strength carbon fiber shell molding process for UAV fuselages includes the following steps: material preparation → cutting → coating with epoxy foam material → bonding → mold closing → hot pressing → demolding → finishing → finished product. The material preparation involves preparing carbon fiber cloth with the same carbon fiber direction. The bonding process involves bonding n layers of carbon fiber cloth coated with epoxy foam material on one side to m layers of carbon fiber cloth, respectively. The fiber direction angles of any two adjacent bonded layers of carbon fiber cloth are different, where n is 3-6 and m is 8-15 degrees. The high-strength carbon fiber shell molding process proposed in this application, through simple process steps and optimized material combinations, can produce high-strength carbon fiber shells with excellent appearance quality, meeting the strength and appearance quality requirements of UAV fuselages, and has low cost and high production efficiency.

The invention relates to the technical field of machine tool machining control, in particular to a soft package lithium battery aluminum plastic film shell forming machining detection method and device, and the method comprises the steps: obtaining soft package lithium battery application scene performance requirements, extracting experimental data from a historical sample data set, and constructing an analog simulation space; environment configuration is determined by fitting the parameter relation, and aluminum plastic shell parameter difference is analyzed to determine target configuration; and inputting the configuration data into a simulation space to obtain a target aluminum plastic shell parameter detection result, thereby solving the technical problem that the aluminum plastic film shell molding processing detection can only evaluate the product performance under known conditions and is difficult to effectively predict and cope with the performance under new application scenes or extreme conditions. Effective virtual verification of the aluminum-plastic film shell forming machining process is achieved, the real performance of the aluminum-plastic film shell under different working conditions and application environments is comprehensively reflected, and the technical effects of accurately and efficiently predicting the aluminum-plastic film shell forming machining quality are achieved.

The present invention belongs to the technical field of color ultrasound equipment, and discloses a probe shell molding process. The process includes firstly preparing a metal composite layer into a thin plate in advance, then softening and deforming the thin plate by heating the mold cavity and suctioning air, and finally, blowing and molding the thin plate by a blowing device to form a shell covering the thin plate. In the present invention, by using the metal composite layer for preparation, the electromagnetic wave energy projected onto the surface of the shell can be absorbed and reduced, and the electromagnetic radiation can be effectively prevented from harassing and harming the surrounding equipment and personnel. In addition, by first softening and deforming the thin plate, and then blowing the thin plate by a blowing device to keep the thin plate in shape, and finally, injecting plastic liquid, the plastic liquid flows into the mold cavity through the injection molding flow channel to form the probe shell, that is, the shell is formed by blow molding, which avoids the need for subsequent processing of the shell and reduces the cost of the processing technology.

The utility model discloses an air purifier shell forming mold convenient to install and position, and relates to the field of molds, the air purifier shell forming mold convenient to install and position comprises a mold base, a forming groove is formed in the mold base, a butt joint groove is formed in the mold base, a supporting rod is fixedly connected to the top of the mold base, and a top plate is fixedly connected to the top end of the supporting rod; a hydraulic cylinder is fixedly connected to the bottom of the top plate, an upper mold is fixedly connected to the output end of the hydraulic cylinder, a butt joint block is fixedly connected to the bottom of the upper mold, and by starting the hydraulic cylinder, the output end of the hydraulic cylinder can extrude the upper mold to drive the upper mold to slide down along the supporting rod, so that the butt joint block is clamped into the butt joint groove for positioning; and the upper mold is driven to be stably butted with the mold base, so that the effect of conveniently positioning, butting and splicing the upper mold and the lower mold is achieved, and the forming machining quality of the air purifier shell is improved.

The utility model discloses plastic shell forming equipment with an automatic trimming function, which comprises a mold, an injection molding channel is arranged on one side surface of the mold, one end of the injection molding channel is shrunk to form an injection molding hole communicated with an upper mold cavity of the mold, an injection molding pipe is mounted on the outer side surface of the mold, and the bent part of the injection molding pipe protrudes to form a thickened part. A shaft hole communicated with the injection molding channel is formed in the center of the thickening part, a push rod is arranged in the shaft hole, a polishing head is installed at one end of the push rod, and the other end of the push rod extends to the outside and is provided with a driving mechanism for driving the push rod to axially move and rotate. The injection molding device is simple in structure, residual solution in an injection molding hole can be pushed into a mold cavity, a large protruding part is prevented from being formed, the push rod can rotate, the polishing head is driven by the rotation of the push rod, the part adhered to a product can be torn through the rotated polishing head, the redundant part can be polished, and the production efficiency is improved.

The present invention provides a multi-sequence UD molding method for wind turbine blades, comprising the following steps: S1, UD mold preparation: cleaning the UD mold surface and applying a release agent to the inner surface of the UD mold; S2, sequentially laying a first continuous felt and a first release cloth on the UD mold; S3, laying a first sequence UD cloth layer; S4, preparing a silicone mold; S5, laying a second sequence UD cloth layer; S6, connecting the silicone mold to the first sequence UD cloth layer and the second sequence UD cloth layer; S7, establishing vacuum, maintaining pressure, and performing pouring and curing. The present invention, by using a silicone mold and positioning the silicone mold after laying a first sequence UD cloth layer, can achieve one-time pouring molding of multi-sequence UD, and the side edges between the first sequence UD and the second sequence UD are smoother, thereby improving the matching of the multi-sequence UD and the shell core material molding, and improving the shell molding efficiency and quality.

The present invention discloses a three-dimensional winding composite material preparation device and an operation method thereof, which belongs to the technical field of composite material shell molding, and includes an original winding device and a shell installed on a rotating device, and a newly added winding device; the newly added winding device includes a fixed plate, a movable column is movably installed on the fixed plate through a fixed seat, a worm is installed on one end of the movable column, the worm is meshed with a worm wheel installed on a motor, the motor is installed on the fixed plate, and a plurality of fiber rollers are movably installed on the other end of the movable column. The device can adjust the axial moving speed according to the needs on the basis of being easy for the staff to understand, so as to better control the force in the thickness Z direction, and is easy for the staff to operate, which is more conducive to popularization and use.

The present invention relates to the field of precision casting technology, and in particular to a medium-temperature wax silica sol investment casting process. The process includes the preparation of a wax mold: fixing the formed wax mold on a gate rod; molding of a shell: selecting a gate rod to be fixed in a rotary shell making machine, and subjecting the shell to coating, sanding and drying treatments on the rotary shell making machine, and circulating this sequence 4-6 times to obtain a preliminary shell; demolding of the shell: placing the preliminary shell in a sealed container for steaming and dewaxing, and then depressurizing and changing water for secondary dewaxing; roasting of the shell: placing the preheated shell in a roasting furnace, gradually heating it to 900-1100°C and maintaining it for 40-50 minutes to obtain a molded shell; molding of castings: injecting molten metal into the molded shell, and then cooling and shelling it to obtain a finished workpiece. The present invention provides a rotary shell making machine, which realizes automatic shelling in the shell molding stage, reduces the cost of manual participation, and realizes single-person operation; combined with the molding shell characteristics of the rotary shell making machine, performs secondary dewaxing to ensure that the wax mold is cleanly separated.