736results about How to "Improve demoulding efficiency" patented technology

The invention discloses hydraulic machine equipment suitable for die forging and blank making of various flanges and a forging method, and belongs to the technical field of flange production equipment.The hydraulic machine equipment suitable for die forging and blank making of various flanges comprises a base and further comprises a top plate, the top plate is arranged on the upper side of the base, and a guide column is arranged between the top plate and the base; the first hydraulic oil cylinder is fixedly arranged on the top plate, and a piston rod of the first hydraulic oil cylinder is connected with a pressure head; all positions of the forge piece are sequentially arranged on the lower side of the pressing head through the swing mechanism, all positions of the forge piece are conveniently and evenly forged, workers do not need to shake the forge piece back and forth by utilizing a clamp or a clamp on the side, and when the pressing head moves upwards every time, the die holder is automatically separated and is matched with the air spraying opening to blow away waste chips generated in the die holder during forging and pressing of the forge piece; and excessive scraps are prevented from being accumulated in the die holder and being matched with the forge piece gradually filling the die holder again, the follow-up processing time of the flange forge piece is shortened, and the flange processing efficiency is improved.

The invention discloses rapid die casting equipment for aluminum alloy die castings, and relates to the technical field of metal die casting. A first channel is formed in a die plate and an ejector rod, and a spray hole communicating with the first channel is formed in the ejector rod; according to the device, the mold release agent can be sprayed to the relatively-closed die-casting cavity in a mold closing state, the comprehensive uniformity of the mold release agent during adhesion is improved, the demolding effect after a die casting is formed is improved, the mold release agent is sprayed in the relatively-closed die-casting cavity, and the mold release effect is improved. According to the die-casting mold core, the release agent can be prevented from escaping outwards, the surrounding environment can be protected easily, waste of the release agent can be avoided, energy-saving, environment-friendly, green and efficient die-casting production is achieved, meanwhile, the spraying holes are formed in the cylindrical face of the end of the ejector rod, the spraying holes cannot be exposed when the ejector rod retracts into the die core, and the die-casting mold core is more environment-friendly. And interference to die-casting production due to the fact that the spraying holes are exposed in the die-casting cavity can be avoided.

The invention relates to the technical field of sealing element production, in particular to a multi-layer composite sealing element forming device and process, the device comprises a fixed mold platform and a movable mold platform, the fixed mold platform is provided with a lower mold, the movable mold platform is provided with a movable plate, the movable plate is provided with an upper mold, the fixed mold platform is provided with a suction cup assembly, and the suction cup assembly is provided with a movable block; a frame is arranged at the lower end of one side of the movable block, a plurality of electric suction cups are arranged on the frame, the peripheral walls of the upper ends of the electric suction cups are slidably connected with the frame, a first air cylinder is installed on the top face of the movable block through an installation base, and the bottom face of a piston rod of the first air cylinder penetrates through the movable block and is fixedly connected with the top face of the middle of the frame; the peripheral walls of the upper ends of the guide rods are slidably connected with the moving blocks correspondingly. According to the demolding mechanism, the deformation or damage of the sealing element caused by non-uniform ejection of the ejection mechanism is avoided, the demolding efficiency is improved, the yield and the quality stability of the multi-layer composite sealing element are ensured, and the demolding requirements of the sealing elements with different specifications and requirements are met.

The invention belongs to the technical field of metal stamping dies, and particularly relates to a metal stamping die demolding structure which comprises a stamping base, a stamping frame fixed to the surface of the stamping base and a stamping hydraulic cylinder fixed to the surface of the stamping frame. A stamping base is arranged over the stamping die, a lubricating top die assembly is arranged above the stamping base, the lubricating top die assembly is arranged, lubricating oil can be smeared and sprayed to the surface of the stamping base and the interior of the stamping die, and therefore the friction force between the surface of the stamping base and the interior of the stamping die in the subsequent stamping process is reduced; the phenomenon that metal raw materials are damaged due to friction caused by forced stamping without lubrication is avoided, demolding after the metal raw materials are stamped is also facilitated through the lubrication effect, a metal blank formed through stamping can be pushed to be loosened, the rapid demolding effect is achieved, manual demolding is not needed, the labor intensity of manual demolding is reduced, and the demolding efficiency is improved.

According to the forming mold for preparing the sealing ring in the field of injection molds, through a pair of mold discs arranged on the outer side of a left mold cylinder and the outer side of a right mold core and spraying assemblies arranged in the mold discs and capable of stretching into an annular mold cavity, when a release agent is sprayed, a rotating mechanism drives the mold discs to rotate; according to the mold, the injection pipe does composite movement of transverse movement and circular movement through the rotation of the left mold cylinder and the right mold core, the release agent is uniformly sprayed to the inner wall of the annular mold cavity, meanwhile, the release agent on the inner wall of the annular mold cavity is uniformly spread on the inner wall of the annular mold cavity under the action of centrifugal force through the rotation of the left mold cylinder and the right mold core, and the distribution uniformity of the release agent is further improved; and besides, during demolding operation, the injection pipe synchronously rotates and extrudes the two sides of the sealing ring blank in the annular mold cavity, so that rotary stripping of the sealing ring blank is achieved, the conditions of adhesion and damage of the sealing ring blank are reduced, and the demolding quality is improved.

The utility model discloses a demoulding tool for an open hollow composite part, the open hollow composite part is formed on a combined mould body to form a combined body to be demoulded, the combined mould body is arranged on a bag making platform, the inner surface of the open hollow composite part is provided with an inner concave and / or inner convex component, and the combined body is provided with a plurality of inner concave and / or outer convex components. The tool comprises an overturning hoisting frame used for hoisting the assembly to a set demolding station, and the overturning hoisting frame is connected with a bag making platform; the plurality of fixed clamping plates are used for limiting the relative position between the assembly and the turnover hoisting frame; and the demolding bracket is used for supporting the combined body at the demolding station and is also used for separating the combined mold body from the open hollow composite workpiece according to a set demolding sequence. The tool disclosed by the utility model is simple in structure and convenient to operate, can greatly improve the demolding efficiency of the open hollow composite workpiece with the concave and / or convex component, and simultaneously reduces the damage of demolding operation to the appearance of a finished product.

The invention discloses an injection mold for limo dining table production, and relates to the technical field of injection molds, the injection mold comprises a base and further comprises a protection device, a lower mold is fixedly mounted at the top of the base, a cooling pipe is fixedly mounted on the surface of the lower mold, and a placement frame is fixedly mounted at the top of the base; a placing groove is formed in the surface of the placing frame, a placing rod is fixedly installed at the bottom of the inner wall of the placing groove, a displacement device is arranged on the circumferential surface of the placing rod, a placing frame is fixedly installed on the side, away from the placing frame, of the displacement device, and a supporting rod slidably penetrates through the inner wall and the outer wall of the placing frame; the placing plate moves to drive the upper mold and the injection molding pipe to deviate by a short distance and not to be aligned with the lower mold, so that residual liquid plastic in the injection molding pipe is prevented from directly dripping on the top of a molded plastic product, and the surface quality and appearance of the molded plastic product can be improved by preventing the liquid plastic from dripping on the top of the molded plastic product.

The invention discloses an end socket forge piece forming device and a demolding method, belongs to the technical field of end socket manufacturing, and solves the problem that an existing end socket forge piece is difficult to demold. The end socket forge piece forming device comprises a punch, a punch connecting frame and a transition connecting plate. The punch comprises a punch connecting part and a punch punching part fixedly arranged on the lower surface of the punch connecting part; the punch connecting frame is connected with the press movable cross beam, the upper end of the transition connecting plate is connected with the punch connecting frame, and the lower end of the transition connecting plate is connected with the punch connecting part; a second vertical pin hole is formed in the punch connecting part and located above the end socket forge piece. During punching, the movable cross beam of the press drives the punch connecting frame and further drives the punch to press down; and after punching is finished, the transition connecting plate is detached, the position of the second vertical pin moves downwards, the second vertical pin makes contact with the two ends of the end socket forge piece, pressure acts on the end socket forge piece, and demolding of the end socket forge piece and the punch is achieved. When the device is used for demolding, the demolding efficiency is high, and the demolding effect is good.

The utility model discloses a shock insulation rubber support demolding device which comprises a demolding platform, die drawing mechanisms are installed on the left side and the right side of the top of the demolding platform, the power output ends of the die drawing mechanisms are connected with die plates, die cavities are formed in the die plates, die bases are further installed at the positions, at the bottoms of the die cavities, of the die plates on the left side and the right side, and an ejection mechanism is installed on the lower side of the demolding platform. And the power output end of the ejection mechanism is arranged in the die holder. According to the utility model, through the arrangement of the die drawing mechanism and the ejection mechanism, after the shock insulation rubber support to be demoulded is transferred to the demoulding platform, the die plate is pulled open through the die drawing mechanism, the shock insulation rubber support is exposed, then the shock insulation rubber support is ejected out of the die holder through the ejection mechanism, and finally, the material taking work is carried out, so that the demoulding work is completed; the shock insulation rubber support demoulding device is simple in structure and low in cost, demoulding efficiency can be improved, demoulding operators can be reduced, labor intensity of workers is reduced, safety accidents are reduced, and production of shock insulation rubber supports is facilitated.

The efficient and energy-saving plastic injection mold comprises a base, lower mold plates are arranged on the base in an attached mode, upper mold plates matched with the lower mold plates are correspondingly arranged on the lower mold plates, the two lower mold plates are symmetrically arranged, and sliding grooves are symmetrically formed in the two sides of the base in an embedded mode; sliding plates are arranged in the sliding grooves in a sliding fit mode, the sliding plates are located below the lower mold plates and attached to the lower mold plates, mold cavities are symmetrically embedded in the sides, close to each other, of the two lower mold plates, and injection holes communicating with the mold cavities are formed in the base in a penetrating mode; the sliding plates are rotationally connected with the side edges, relatively far away from each other, of the two lower die plates through rotating hinges, and a driving assembly used for driving the two sliding plates to move relatively is arranged on the base in an embedded mode. The driving assembly drives the two sliding plates to be far away from each other, so that the two lower mold plates are separated from each other, the injection-molded part is automatically discharged, the demolding efficiency is improved, and the defect risk possibly existing during demolding of the injection-molded part is reduced.

The utility model relates to a die-casting die, which belongs to the field of die-casting dies and comprises a movable die component and a static die. Die-casting cavities are respectively formed in the opposite surfaces of the static die and the movable die assembly; an injection nozzle communicated with the die-casting cavity is arranged on the static die; a U-shaped cooling water cavity is formed in the injection nozzle; the movable mold assembly comprises a movable mold base, a push plate, a push rod fixing plate, a cylindrical push rod, a reset push rod, a demolding push rod and a movable mold body; the die-casting cavity is formed in the movable die body; the push rod fixing plate, the push plate and the movable mold base are sequentially arranged on the movable mold body from inside to outside; according to the injection nozzle structure disclosed by the utility model, the structures of the movable mold assembly and the static mold are combined, so that the technical problems that the injection nozzle is easy to strain and pock marks occur are effectively solved, the service life of the injection nozzle is prolonged, the bonding between a die casting and the static mold is reduced, the demolding efficiency is improved, and the integrity of the casting is ensured.

The invention relates to the technical field of valve casting, and discloses a casting production device and method for valve casting, the casting production device comprises a box body, the top of the box body is fixedly connected with a first supporting seat, the top of the first supporting seat is fixedly connected with a motor, the output end of the motor is fixedly connected with a first electric telescopic rod, and the inner wall of the box body is fixedly connected with a hydraulic cylinder; a protective sleeve is fixedly connected to the inner wall of the box body, a pushing mechanism is arranged in the box body, a valve subjected to mold fixing can be subjected to extrusion force of an ejection block to be demolded and separated from a mold, the demolding efficiency of the device is improved, the ejection block makes contact with the mold by directly utilizing pushing force of a hydraulic rod, the service time of the device is shortened, and the device is convenient to use. And the parts can fall into the external collecting box, so that the time cost of manual collection is reduced, potential safety hazards caused by too high temperature of the parts during manual collection are avoided, and the use efficiency of the device is improved.

The invention provides a turnover demolding method, and relates to the technical field of material processing. The method comprises the steps that the first overturning module is controlled to move to the position above the conveying module; the transmission module is controlled to transmit a target object to a preset area, the second overturning module is controlled to be close to the first overturning module, and the target object comprises a bearing piece for bearing a target material; clamping the bearing piece by using a clamping unit of the first turnover module; determining that the second overturning module meets a preset condition, and controlling the first overturning module and the second overturning module to synchronously overturn, the preset condition comprising that the second overturning module is buckled on the first overturning module; and if it is determined that the second overturning module overturns to the preset state, the first overturning module and the second overturning module are controlled to be separated so as to achieve separation of the target material and the bearing piece, and the preset state comprises the horizontal state. According to the embodiment of the invention, automatic demolding of materials can be realized, the demolding efficiency is high, the cost is low, demolding can be performed for a long time, the production efficiency is effectively improved, and the production cost is reduced.

The invention discloses an assembly type building stair mold, and relates to the technical field of stair molds, the assembly type building stair mold comprises a mold mechanism, the side face of the mold mechanism is provided with a transverse steel bar limiting mechanism, and the transverse steel bar limiting mechanism is used for limiting and fixing transverse steel bars in a prefabricated stair. According to the longitudinal reinforcement limiting mechanism, the height of a clamping head is accurately adjusted through a third mounting bolt, the clamping head can be flexibly selected according to the diameter of a longitudinal reinforcement, the mounting height and position of the longitudinal reinforcement can be accurately controlled, the overall positioning accuracy of a reinforcement framework is guaranteed, and then the mechanical property of the prefabricated stair is improved; the sleeve plays a role in protecting the end, inserted into the mold mechanism, of the third mounting bolt, it is avoided that concrete adhesion affects bolt disassembly, meanwhile, due to the detachable design of the third mounting bolt and the modular structure of the steel bar limiting mechanism, the demolding difficulty is lowered, damage to stairs after a component is formed is reduced, and the demolding efficiency and the finished product quality are improved.

The utility model relates to the technical field of low-pressure casting machines, and discloses a low-pressure casting machine which comprises a base, a mold groove is formed in the top of the base, a connecting cavity is formed in the base, and the left side and the right side of the top of the base are each provided with two stand columns which are symmetrically distributed front and back. The tops of the two stand columns on the left side are provided with fixed transverse plates fixedly connected with the tops of the two stand columns on the right side, and the exteriors of the two stand columns on the left side are provided with downward pressing seats slidably connected with the exteriors of the two stand columns on the right side. According to the low-pressure casting machine, by arranging the stripping assembly, when a cast workpiece needs to be demolded, two servo motors, a disc, a circular shaft and a connecting rod are used in cooperation, so that a sliding plate drives an extension rod and a stripping plate to move upwards, the workpiece is ejected out of a mold groove, and then the purpose that the workpiece is demolded conveniently is achieved; manual demolding by staff is not needed, the demolding efficiency is improved, the practicability of the device is improved, and the device is convenient to use by the staff.

The invention discloses a mold frame opening and closing system for a plastic mold, relates to the field of mold opening and closing, and solves the problem that an existing mold frame is difficult to quickly demold a mold base, the mold frame opening and closing system comprises a fixed plate and mounting plates fixedly mounted at the two ends of the fixed plate, and two symmetrically distributed mounting frames are arranged on the outer side of the fixed plate; pressing templates are fixedly mounted on the inner side of the mounting frame, and four hydraulic rods distributed in a rectangular array are fixedly mounted between the opposite surfaces of the two pressing templates and the two fixing plates respectively; the demolding mechanism is used for performing gas injection demolding on the two mold pressing plates, and the demolding mechanism is mounted between the two mounting frames; according to the demolding mechanism, when the two mounting frames are far away from each other, high-pressure gas can be injected between the two mold pressing plates, the gap between the mold pressing plates and the mold base is increased, the problem that the mold base adheres to the mold pressing plates is solved, and therefore the effect of rapid demolding is achieved.

The utility model relates to the technical field of aluminum product production, and discloses an aluminum product production mould capable of quickly demoulding, which comprises a processing table, a support frame and two groups of support plates, the support frame is fixedly connected to the rear side of the top of the processing table, and the two groups of support plates are fixedly connected to the rear sides of the left and right side walls of the processing table. A casting mold cavity is formed in the middle of the top of the machining table, a push plate is slidably connected to an inner cavity of the casting mold cavity, a U-shaped block is fixedly connected to the bottom of the push plate, a through groove is formed in the bottom of the inner cavity of the casting mold cavity, and a mounting plate is fixedly connected to the front side of the bottom of the machining table. A first rotating rod is rotationally connected to the rear side of the mounting plate through a bearing, a first chain wheel is fixedly connected to the front side of the outer side wall of the first rotating rod, and a rotating disc is fixedly connected to the rear side wall of the first rotating rod; according to the scheme, the demolding efficiency can be improved, rapid demolding of aluminum materials is facilitated, and the production efficiency of the aluminum materials is improved.

The utility model relates to the technical field of aluminum oxide ceramic production, and discloses an aluminum oxide ceramic dry press demoulding device which comprises a main body mechanism and a forming mechanism, the forming mechanism is located at the upper end of the main body mechanism, the main body mechanism comprises a machining table, a mould box and a forming groove, and the mould box is fixedly installed at the inner end of the machining table. The forming groove is fixedly formed in the upper end of the mold box; and the main body mechanism further comprises an electric push rod, a demolding plate, a supporting plate, a guide groove and a guide plate, the electric push rod is fixedly installed at the lower end of the inner end of the mold box, the transmission end of the electric push rod extends into the forming groove, and the demolding plate is fixedly installed at the upper end of the transmission end of the electric push rod. According to the demolding device of the aluminum oxide ceramic dry press, by installing the main body mechanism, the demolding efficiency of the device is conveniently improved, a plurality of pressed blanks in a mold can be conveniently ejected out, the production efficiency is improved, the labor intensity of workers is reduced, the product quality is improved, and the practicability is improved.

The utility model discloses a graphite mould convenient to disassemble and assemble, which belongs to the technical field of graphite moulds and comprises a first mould, a plurality of middle moulds and a second mould which are sequentially connected. Forming holes are formed in the ends, close to each other, of the first mold, the multiple middle molds and the second mold, a fixed base plate is arranged at the end, away from the middle molds, of the first mold, and a pair of threaded sleeve rods is fixedly connected to the end, close to the first mold, of the fixed base plate; a pair of through holes corresponding to the threaded sleeve rods are formed in the middle of each of the first mold, the multiple middle molds and the second mold, the purpose that the first mold, the middle molds and the second mold are assembled and fixed in a unified mode through the fixing base plate and the threaded sleeve rods can be achieved, and meanwhile gas supply equipment is used for conveying gas into the exhaust holes; and cold air enters the cooling hole to quickly cool the formed workpiece in the forming hole, so that the demolding efficiency is improved.

The utility model provides an aluminum profile extrusion device which comprises a bottom plate and a top plate, an aluminum profile extrusion lower die is arranged at the upper end of the bottom plate, a push block assembly is arranged in the aluminum profile extrusion lower die, and an aluminum profile extrusion upper die is movably arranged at the lower end of the top plate; the pushing block assembly comprises a pushing block and a spring, the spring is arranged at the lower end of the pushing block, the pushing block is embedded in the die wall of the aluminum profile extrusion lower die, the bottom plate and the top plate are fixedly arranged through a vertical plate, a fixing base is integrally arranged on the upper surface of the bottom plate, a through groove and a concave table are arranged in the fixing base, and the concave table is formed in the inner wall of the top of the through groove and communicated with the through groove. According to the aluminum profile extrusion lower die, the push block assembly is arranged in the aluminum profile extrusion lower die, when the elastic push block does not apply pressure any more, the push block can push the aluminum profile extruded and formed above the push block to rapidly move upwards in the returning process, the aluminum profile can be rapidly separated from the aluminum profile extrusion lower die without being attached to the aluminum profile extrusion lower die through rapid upward movement, and therefore the aluminum profile demolding efficiency is improved.

The invention discloses an automatic demolding mechanism for an impregnated glove production line, and relates to the technical field of impregnated glove production, the automatic demolding mechanism comprises a supporting rod, and a lower mold mechanism is arranged at the bottom of the supporting rod; the lower mold mechanism comprises an opening and closing unit, the opening and closing unit is arranged at the bottom of the supporting rod, and the opening and closing unit is used for adjusting the supporting degree of the impregnated gloves; the automatic demolding mechanism comprises an opening and closing unit and a lower mold mechanism, the lower mold mechanism comprises a pushing unit, the pushing unit is arranged in the opening and closing unit, the pushing unit is used in cooperation with the opening and closing unit, and the pushing unit is used for assisting in mold discharging of the impregnated gloves. The supporting degree of the glove is adjusted, the situation that the glove is deformed and damaged due to the fact that friction force between the glove and a mold during demolding and the pulling force of external equipment are too large is avoided, the glove demolding efficiency is guaranteed, and meanwhile the production quality of the glove is guaranteed.

The invention provides hyperbranched polyamide modified polysiloxane, hyperbranched polyamide modified hydrogen-terminated polysiloxane resin, a semi-permanent organic silicon release agent and a preparation method and application of the semi-permanent organic silicon release agent, and belongs to the technical field of release agents. The preparation method of the hyperbranched polyamide modified polysiloxane comprises the following steps: mixing hyperbranched polyamide with 3-hydroxyphenylphosphoryl propionic acid for condensation polymerization to obtain a first intermediate; mixing the first intermediate with lithium alkylide for substitution reaction to obtain a second intermediate; and mixing the second intermediate with siloxane, and carrying out silanization reaction to obtain the hyperbranched polyamide modified polysiloxane. According to the semi-permanent organic silicon release agent, hyperbranched polyamide modified polysiloxane is stable in structure, so that the semi-permanent organic silicon release agent is good in high-temperature resistance and high in cohesive strength, further, transfer of the release agent to the surface of a formed part is reduced, and the precision of the formed part is improved; meanwhile, repeated demolding can be achieved, and working efficiency is high.

The invention discloses a forming mold of an automobile light-weight extruded profile and a using method thereof, and relates to the technical field of hot pressing molds, the automobile light-weight extruded profile mold comprises a base, a buffer box base is fixedly arranged on the top surface of the base, and an electric heating plate is arranged on the buffer box base through a supporting block; an electric heating plate is arranged above the upper die, a lower die is arranged above the electric heating plate, a positioning seat is arranged above the electric heating plate, a hollow rubber column is arranged on the top surface of the positioning seat, a rubber cone is arranged on the top surface of the hollow rubber column, and a groove hole is formed in the rubber cone; the upper die mechanism is detachably installed above the lower die mechanism, the upper die mechanism comprises an upper die, an upper cavity is formed in the bottom face of the upper die, and the upper cavity is matched with the lower die. According to the forming die for the light-weight extruded profile of the automobile, the profile can be conveniently cooled during demolding, and the internal and external pressure difference of the profile which is not thoroughly cooled before demolding of the die is conveniently balanced, so that the quality of the produced profile is improved.

The invention discloses counter-pressure casting equipment and a casting method thereof, and relates to the technical field of casting, the counter-pressure casting equipment comprises a supporting frame, and a static mold mechanism is mounted on one side of the supporting frame. According to the counter-pressure casting equipment, a third electric push rod works to push a rack to move, a gear rotates, a rotating rod and a rotating disc are driven to rotate, and a material receiving disc moves to the position below an upper movable mold; the material receiving disc is arranged, demolded products are received, the products can be conveniently received and fed by adjusting the position and the inclination angle of the material receiving disc, collision of the products is reduced, and the quality of the products is improved. The upper movable mold and the lower static mold are closed, the first cavity and the second cavity are communicated, the pressure in a closed space formed by the first cavity and the second cavity is balanced with the pressure in the sealing cover, rare gas continues to be filled into the sealing cover, molten metal enters the lower static mold and the upper movable mold through a liquid rising pipe to be filled, and the molten metal is formed in the upper movable mold and the lower static mold; and the product is formed under certain pressure, so that the forming quality of the product can be improved.

The invention relates to the technical field of concrete performance detection, in particular to a concrete test block mold, a demolding device and a demolding production line, the concrete test block mold comprises a diaphragm capsule, a needle hole is formed in the bottom wall of the diaphragm capsule, and the needle hole penetrates through the bottom wall of the diaphragm capsule. The demolding device comprises a base, a positioning block matched with the positioning groove and a positioning seam matched with the positioning edge are arranged at the top of the base, an ejector pin is arranged in the center of the top of the positioning block, a plurality of vent holes are formed in the top of the positioning block around the ejector pin, and an air compressor connected with the vent holes is arranged in the base. The demolding production line comprises a control center, a transfer robot, a demolding device, a standing frame, a mold conveying belt and a coding workstation. The demolding device has the effect of improving the demolding quality of the test block.

The utility model relates to the technical field of ice making equipment, in particular to an automatic lifting and overturning integrated ice making device which comprises an upper mold, a lower mold, a lifting device and an overturning device. And the lower mold and the upper mold are buckled and connected to define an ice making cavity. The lifting motor drives the movable base plate, the abutting block, the lower die and ice cubes manufactured in the lower die to turn over towards the direction of the turning support together through the connecting rod assembly. An abutting block is arranged on one side of the lower die relative to the upper portion of the overturning support. When the movable base plate descends to a certain position, the abutting block and the lower mold are pushed to rotate around the movable base plate under the acting force of the overturning support, when the movable base plate descends to a set position, the ice block products in the lower cavity fall off, and automatic demolding of the ice blocks is completed. And the lifting motor is reversely rotated to enable the abutting block and the lower die to reversely rotate together to recover to the initial state. And the demolding efficiency is high, a series of actions such as lifting and overturning can be achieved only through one lifting motor, the transmission efficiency is high, the structure is compact, and the cost is also remarkably saved.

The invention discloses a ceramic sheet and a preparation method thereof, and belongs to the technical field of ceramic composite materials. The method comprises the following steps: injecting preparation raw materials into a mold, curing, demolding, drying, discharging glue and sintering, the preparation raw materials comprise a slurry raw material, an initiator and a catalyst; the slurry raw material comprises a powder raw material and a premixed solution; the powder raw material comprises ceramic powder and a sintering aid; the premixed liquid comprises an organic monomer, a cross-linking agent and the like. The mass of the powder raw material is 60-77% of that of the slurry raw material; the mass of the organic monomer is 14-25% of that of the premixed solution, and the mass ratio of the organic monomer to the cross-linking agent is 20: 1-70: 1. By adopting the preparation raw materials with the specific composition and proportion, the polymerization speed of the monomer and the cross-linking agent can be slowed down, the toughness of a cured wet blank can be improved, the ceramic sheet with relatively high bending strength, fracture toughness and hardness can be obtained, in addition, the method can realize rapid lifting and pulling of an upper mold, the demolding and forming efficiency can be improved, and the production cost can be reduced.

The utility model belongs to the technical field of aluminum alloy casting, and particularly relates to an aluminum alloy casting die which comprises a base, the top of the base is fixedly connected with a supporting seat through a fixing rod, the top of the supporting seat is fixedly connected with a lower die, and the bottom of the supporting seat is provided with a lifting frame. The top of the lifting frame extends into the lower mold and is slidably connected with an ejector rod, a first spring is arranged in the lifting frame and located at the bottom of the ejector rod, and fixing frames are fixedly connected to the outer portion of the supporting base at equal intervals. The utility model provides a die for casting aluminum alloy, and solves the problems that in the prior art, although a casting is more uniformly stressed and is prevented from being damaged by ejection through round ejection heads which are arranged in a rectangular manner, the product is adhered to the inner wall of a lower die in the actual production process; the problems that if ejection is directly conducted through an ejection head, the surface of a product is prone to being damaged, defective products appear, the production quality of aluminum alloy casting is reduced, and meanwhile the casting efficiency is affected are solved.