68results about How to "Not easy to demould" patented technology

The invention relates to a full-automatic core shooter. The full-automatic core shooter comprises a die and a core shooting device shooting core sand into the die. The die is divided into an upper die body, a middle die body and a lower die body. Buckle mechanisms controlling the middle die body and the lower die body to be opened and closed are arranged on the two opposite side faces of the die. The full-automatic core shooter further comprises a solidifying device, a die stripping device, a moving device, a material receiving device and a PLC control system. The solidifying device comprises a solidifying rack, a blowing mechanism and a die splitting mechanism. The die stripping device comprises a die stripping rack, a lifting mechanism lifting the die, an overturning mechanism overturning the lifted die, and an ejecting mechanism enabling a mold core in the die to be stripped. The moving device is driven by a servo motor, and the die is accurately positioned or horizontally reciprocates at the stations of the core shooting device, the solidifying device and the die striping device. The material receiving device is used for automatically conveying the mold core obtained in the die stripping device. The PLC control system controls drive motors and air cylinders in the core shooting device, the solidifying device, the die stripping device, the moving device and the material receiving device so as to achieve automatic running.

A preparation method of a solube core mold comprises: blank moulding of a mortar mould: a) the ingredients of the mortar die consists of quartz sand, polyvinyl alcohol and water with a weight ratio of 100:1-2:6; b) the inner sleeve of the mortar mould is sleeved in a moulding mould, then adding the uniformly stirred ingredients of the mortar mould into the moulding mould until the moulding mould is full; c) demoulding; and d) solidifying; and a mandrel is penetrated in the mortar mould, the mandrel and the mortar mould are fixed in a circumferential direction by using the inner sleeve of the mortar mould and fixed in an axial direction by using a locking ring. A preparation method of a nonmetal-lining or no-lining fibre winding container comprises: infiltrating a fibre reinforced material in a resin solution, winding the fibre reinforced material on the soluble core mould in a circumferential direction and in a longitudinal direction by using a winder, solidifying, washing with water and demoulding. By using the container, demoulding can be finished by water washing. The soluble core mould is especially suitable for preparing composite material containers with a complex-shape internal profile as well as hard to demould, is low in cost and reusable in raw materials.

The invention discloses a method for preparing a toughened large-size ultrathin YAG transparent ceramic biscuit based on an Isobam gel system. The method comprises the following steps: respectively weighing Y2O3 powder and Al2O3 powder as ceramic powder; mixing and ball-milling the ceramic powder, a sintering aid, a dispersing agent A, grinding balls and absolute ethyl alcohol according to a certain proportion to obtain mixed slurry; drying the mixed slurry, sieving and calcining the material, and obtaining the raw material powder formed through gel casting; mixing and ball-milling deionized water, an Isobam 104 solution, a dispersing agent B, a plasticizer, grinding balls and the raw material powder according to a certain proportion, adjusting the pH value of the system to be 10-12, and preparing the ceramic slurry; and performing vacuum defoaming, pouring the defoamed slurry into a mold by adopting a pressure injection method, performing natural gel curing at room temperature, and performing drying and gel discharging to obtain the YAG ceramic biscuit. The preparation process is simple and environmentally friendly, and the prepared ultrathin ceramic biscuit is good in flatness, not prone to cracking and easy to demold.

The invention relates to an automatic production line for a high-precision grinding wheel. The automatic production line comprises a grinding wheel forming die and further comprises a lower mesh containing system, a feeding system, a charging system, a material scraping system, an upper mesh containing system, a mesh pressing system, a core ring containing system, a die pressing machine and a demoulding device, all of which are arranged on a production track. The grinding wheel forming die is arranged on the production track and conveyed, and lower mesh containing, feeding, charging, flat material scraping, upper mesh containing, mesh pressing flattening, core ring containing, die pressing forming and demoulding are sequentially finished. The automatic production line is high in automationdegree, feeding is convenient, charging is stable and uniform, meshes are flatly placed, raw materials in the die are uniform, and the grinding wheel die pressing forming quality can be better improved.

The invention provides a steel beam grid floor formwork system, wherein a plurality of early removed steel supports and a plurality of late removed steel supports are evenly arranged on a bottom floor; the top end of an internal sleeve of each early removed steel support is provided with a jack; a plurality of rows of square steel beams are paved on the jacks in the transverse direction; and a plurality of rows of n-shaped steel beams are evenly arranged on the square steel beams in the longitudinal direction; faceplates are paved on the n-shaped steel beams; all the faceplates are arranged between collected strip clearances; late removed strips are paved in the longitudinal direction; and clearance plates are paved in the transverse direction; the bottom faces of the late removed strips are directly supported by the late removed steel supports; and longitudinal and transverse horizontal steel pull rods are buckled with the internal sleeves of all the steel supports through fasteners. Having the serialized structure sizes, the n-shaped steel beams, the square steel beams and the faceplates are convenient to use, and have great structural strength and high safety coefficient; and additionally, the n-shaped steel beams, the square steel beams and the faceplates are difficultly damaged so as to be reused for multiple times. The new type faceplates are low in toxicity and great in surface hardness, and are reused for multiple times which are three times that of the traditional faceplates. When the steel beam grid floor formwork system is used, the construction speed is high, the materials and the woods are saved, the environmental pollution level is low, less support steel is used, and the project cost is low.

The invention discloses a riser forming machine which comprises a slurry tank, a die, a scraping device and a vacuum absorbing device. Two stirring devices opposite in stirring direction are arranged in the slurry tank. The die is arranged on the upper side of the slurry tank through a rack elevating shaft and slides along the rack elevating shaft vertically. The die comprises an inner die body and an outer die body. Four hammers are arranged on the periphery of the inner die body. The die is provided with an exhausting hole. The scraping device is arranged between the slurry tank and the die and comprises a brush oil cylinder, a stainless steel roller and a brush. The vacuum absorbing device comprises a vacuum box and a vacuum settling tank. The vacuum settling tank is provided with a gas inlet hole and a sewage draining opening. The gas inlet hole is connected with the exhausting hole of the die through a hose. The riser forming machine enables whole mixed materials to be turned over upwards, so that the effects of dead-angle-free material storage and uniform mixing are achieved. By means of automatic die releasing, the defects that due to the fact that a die is hammered manually, a riser can not be released from the die easily, and manpower is wasted are overcome, the inner wall and the outer surface of the produced riser are smooth, and the quality and the working efficiency of the riser are improved.

The invention relates to a fully automatic core shooting machine, which includes a mold and a core shooting device for injecting core sand into the mold. The mold is divided into an upper mold, a middle mold and a lower mold. The locking mechanism for the opening and closing of the middle mold and the lower mold. The fully automatic core shooter also includes: a curing device, which includes a curing frame, an air blowing mechanism and a parting mechanism; a demoulding device, which includes a demoulding frame, a lifting mechanism for lifting the mold, and flipping the lifted mold The overturning mechanism and the ejection mechanism for demoulding the core in the mold; the moving device, which is driven by a servo motor, makes the mold accurately position or move back and forth horizontally in the positions of the core shooting device, curing device, and demoulding device; A material receiving device, which is used to automatically transport the core obtained from the demoulding device; a PLC control system, which controls each drive in the core shooting device, curing device, demoulding device, moving device, and material receiving device Motor and cylinder for automatic operation.

The invention provides a concrete centrifugal square pile and a forming mold thereof. A pile body is in a square shape, a pile core is a central through hole and is cylindrical, corners of four sides of the pile body are in a stress relieving arc shape, the radius of arcs is the same, the pile body comprises a steel reinforcement cage and concrete, the steel reinforcement cage comprises a main skeleton reinforcement and stirrups, the stirrups are successively welded on the main skeleton reinforcement in a spiral mode, metal end plates which are connected with the steel reinforcement cage are arranged at two ends of the pile body, sleeve hoops are arranged on the connecting portions of the metal end plates and the pile body, and the radii R of the arcs of the corners of the four sides of the pile body are respectively 18mm, 22mm, 26mm and 32mm. The square pile has the advantages that materials are saved, the self weight is light, the square pile is not easy to damage, the tensibility of the pile body is good, the bearing capacity of the pile is large, the service life is long and bending resistance and shearing resistance performances are good. The structural pile of the forming mole is easy to demold, the energy is saved and the carbon emission is reduced.

The invention provides a roll-to-roll preparation method of a contrast refined film. The method comprises the steps of: designing and simulating a contrast refined film; carving out a wedge-shaped microstructure roller with the designed structure and size; carrying out surface processing on a PET base film coiled material, and then carrying out precise coating with optical microstructure function layer resin; carrying out semi-solidifying on the optical microstructure function layer resin, carrying out demoulding, deeply solidifying the basically-shaped optical microstructure function layer resin after demoulding, and solidifying the optical microstructure function layer resin into a film; precisely coating a optical microstructure function layer after film formation by solidifying with absorbing layer resin, and solidifying the absorbing layer resin into a film; and precisely coating an absorbing layer after film formation by solidifying with protection layer resin, and solidifying the protection layer resin into a film. The roll-to-roll preparation method of the contrast refined film has the advantages that a press roller facilitates demoulding, the size accuracy of the wedge-shaped microstructure is high, the yield is high, the operation is convenient, safety and reliability are realized, the method is economic and environmental-friendly, and large-scale batch production can be easily realized.

The invention provides a machining process for an extrusion die. The machining process is used for machining the extrusion die sleeved on a roll shaft of a granulator. A die blank with die holes is subjected to thermal treatment and finish machining, and each die hole is subjected to extrusion and grinding treatment. The thermally treated extrusion die has strong strength, cannot be cracked after being extruded for a long time, and is long in service life; the die holes are high in compressive resistance and bending resistance, and cannot be deformed by extrusion; after the finish machining, the extrusion die can rotate stably, and the yield is high; in addition, the grinding cost of the extrusion mode is low, and two die blanks can be ground by once extrusion, so that the grinding efficiency is high; and the die holes of the ground die blanks are low in roughness, and extruded products are easy to de-mold.

The invention discloses a splash-proof water-intercepting flow-guide device of a high water receiving cooling tower in a power plant. The device comprises suspension cables, transverse lifting rods, water collection tanks, water collection flow guide plates and splash-proof gratings, wherein the lower ends of the transverse lifting rods are fixedly mounted on the water collection tanks, and the upper ends of the transverse lifting rods are suspended in the tower through the suspension cables; the water collection flow guide plates are obliquely arranged above the two adjacent water collection tanks, the lower end of each water collection flow guide plate is fixed on the side edge of the previous water collection tank, the upper end of the water collection flow guide plate is fixed at the top end of the next transverse lifting rod, and the water collection flow guide plates are vertically distributed corrugated plates; the splash-proof gratings are fixedly arranged on the upper end surfaces of the water collection flow guide plates; each water collection tank comprises a water tank body, a connecting flange, a tank opening reinforcement rib, an outwards protruded reinforcement rib, a bearing and lifting steel belt and a horizontal lifting rod; the water tank body comprises a water collection tank body and an arc-shaped drainage upper side plate. The device is high in bearing strength, good in splash-proof performance, high in water receiving efficiency, low in water collection noise and long in service life.

The invention relates to a freeze-dried grain food product. Grains are taken as the main food raw materials of the freeze-dried grain food product. A preparation method comprises following steps: material supply, crushing, slurry preparation, mould injection, freezing, and drying, or material supply, pulp grinding, mould injection, freezing, and drying. The crushed raw materials are subjected to freeze drying, so that the nutrients in grains are maintained for a long term, the self life is prolonged, it is convneeint for storage, carrying, and eating, no additive is added, the freeze-dried grain food product is natural and is good for health. Auxiliary food raw materials are added into a slurry, so that nutrient components are increased, and the mouthfeel is improved; and in addition, foodcolloids such as guar gum, xanthan gum, carrageenan, konjac glucomannan, pectin, Arabic gum, and locust bean gum are added into the slurry, so that product surface lubricity is improved, demoulding from a mould is convenient, product cohesive force is increased, and a problem in the prior art that cracking of freeze-dried food is easily caused is solved.

The invention discloses a nano-ceramic paper pulp abrasive disc and a production method thereof. Raw material components of the nano-ceramic paper pulp abrasive disc include nanometer corundum and nanometer fused alumina zirconia, and the disadvantages of poor toughness and low corrosion resistance are solved, the service life of pulp abrasive discs is prolonged, and production of high-end nonmagnetic paper pulp is realized. The production method of the nano-ceramic pulp abrasive disc comprises the following steps: (1) preparing the raw materials; (2) carrying out pressure forming; (3) carrying out isostatic compaction; (4) machining a blank; (5) carrying out high temperature sintering; and (6) carrying out abrasive machining. The method solves the technical problem of difficult demolding of special-shaped paper pulp abrasive discs, and opens up a new way for production of special-shaped ceramics.

The invention discloses a forming tool for a carbon fiber composite material landing gear strut. The forming tool comprises an upper tank body, a lower tank body, a telescopic rod, a base, a hinged piece, a die frame and a core die. The hinged piece is connected between the upper tank body and the lower tank body, and the die frame and the core die are correspondingly arranged on the upper tank body and the lower tank body respectively. The upper end of the telescopic rod is connected into the upper tank body, and the lower end of the telescopic rod extends to the inner side of the lower tank body. A fan and an air inlet device are arranged on the surface of the base, and the fan is located on one side of the air inlet device. A heating assembly is laid on the periphery of the die frame, a cooling assembly is fixedly installed below the heating assembly, a heat preservation frame is movably installed above the heating assembly, and a lighting device is arranged at the bottom of the die frame. The forming tool has the beneficial effects that demolding is not likely to happen, popularization is made convenient, then the problems of laying, pressurizing curing and demolding of the landing gear composite material strut are solved, and molding manufacturing of a double-curvature variable-cross-section, multi-layer-number and large-thickness composite product of a special structure is achieved.

The invention discloses a self-cleaning intelligent cat litter basin and a cleaning method thereof. The self-cleaning intelligent cat litter basin comprises a base, an upper cover, a separation barrel and a combined supporting structure. The combined supporting structure limits an excrement outlet of the separation barrel, the upper cover and the base are each provided with a first embedding groove, the combined supporting structure is embedded into the first embedding grooves, so that the combined supporting structure and the upper cover are hermetically connected, and the combined supporting structure and the base are hermetically connected. The cleaning method comprises the following steps that a, cat excrement is put into a cat excrement collecting box; b, cat litter is separated from excrement blocks; c, cat litter is discharged; d, the separation barrel is cleaned; and e, drying is carried out. The bearing capacity of the whole device is improved, deformation of the upper cover and the base is avoided, the combined supporting structure and the upper cover are hermetically connected, the combined supporting structure and the base are hermetically connected, self-cleaning operation on the separation barrel in the later period is facilitated, sewage discharged from the separation barrel is not prone to entering the base, cleaning is convenient, the speed is high, and the self structure of the separation barrel cannot be damaged.

The invention relates to a grinding wheel forming die demoulding device. The demoulding device is arranged on a production track. The production track is provided with a demoulding positioning sensor.The production track is provided with a circle of demoulding ring corresponding to the demoulding positioning sensor and the position above a demoulding vertical vibration hammer, and a plurality ofdemoulding positioning holes which are located in the outer side of the demoulding ring and correspond to demoulding lifting suction heads. A demoulding rotation base is driven through a demoulding motor and connected with one or more demoulding vertical vibration hammers. The two sides of the production track correspond to two demoulding horizontal vibration hammers on the outer circumference ofa grinding wheel forming die. The demoulding lifting suction heads are arranged below the production track and fixed to be in a state that the demoulding lifting suction heads can ascend and descend to penetrate through the demoulding positioning holes to actuate the bottom end face of the grinding wheel forming die. The grinding wheel forming die demoulding device is high in automation degree, feeding is convenient, charging is stable and uniform, meshes are flatly placed, raw materials in the die are uniform, and the grinding wheel die pressing forming quality can be better improved.

The invention relates to the technical field of injection molds, and discloses a mechanical pneumatic type plastic bowl easy-demolding injection mold. The mechanical pneumatic type plastic bowl easy-demolding injection mold comprises a workpiece table, a heat insulation cover is fixedly connected to the top of the workpiece table, a movable groove is formed in the inner wall of the middle of the heat insulation cover, a T-shaped groove is formed in the top of the workpiece table, a lifting column is fixedly connected to the top of the workpiece table, a fixing table is fixedly connected to the top of the lifting column, a pneumatic push rod is fixedly connected to the outer side of the fixing table, and an injection molding gun is movably connected to the inner wall of the middle of the fixing table. According to the mechanical pneumatic type plastic bowl easy-demolding injection mold, a pneumatic lifting table drives a movable block to move, the movable block drives a supporting table to move, an electromagnet drives a first magnetic block to move, and then a rubber suction cup and a piston are used in cooperation, so that the effect that negative pressure adsorption demolding is automatically pushed, damage caused by manual operation is avoided is achieved, compared with a traditional mold, the mold can effectively guarantee that a finished plastic bowl is not prone to being damaged, and meanwhile the demolding efficiency is guaranteed.

The invention discloses a drawing process of an arc corner connecting rib of a metal box shell. The drawing process comprises the following steps that the metal rectangular shell is prepared, and arc corner transition portions are arranged at the vertex corners of the metal rectangular shell; a first metal drawing die is used for drawing a top face plate of the metal rectangular shell for the first time, so that a plurality of first convex strips are formed in the first area between the two arc corner transition portions of the top face plate; and a second metal drawing die is used for drawing a side face plate and arc corner transition portions of the metal rectangular shell obtained after first-time drawing molding for the second time, so that a plurality of second convex strips are formed in the second area between the two arc corner transition portions of the side face plate. The drawing process has the beneficial effects that through two times of drawing, arc corners can be orderly, and the stress capacity of the arc corners is improved; meanwhile, convex grain can be formed on the shell, especially on the arc corners, and attractiveness and durability are achieved; especially, die stripping is facilitated in the whole manufacturing process, the production process is simplified, and the occurrence rate of defective goods is lowered.

The invention discloses a production method of a rapid sideslip mounting floor, and belongs to the technical field of floor production. The manufacturing method comprises the following steps that stepone, floor blanks are sorted; step two, the floor blanks are conserved; step three, the floor blanks are sanded; step four, the floor blanks are subjected to thickness fixing; step five, the surfacesof the floor blanks are treated; step six, the floor blanks are subjected to fixed-length forming processing; step seven, anti-cracking oil is sprayed to the floor blanks; step eight, the floor blanks are subjected to plastic packaging; step nine, the floor blanks are coated with back paint; and step ten, the floor blanks are coated with oil paint or plant oil. After injection molding, a lock catch frame is hidden under a boss of each floor blank, the precision of the size of a lock catch is high, and the assembly is firm.