1066results about How to "Guarantee molding quality" patented technology

The invention discloses a spiral stirrup continuously and synchronously machining machine and a machining method. The machining machine comprises a machine body seat, a spiral stirrup machining device and a monitoring device. The spiral stirrup machining device comprises a rotary workbench, a stirrup winding mechanism, a feeding mechanism and a cutting mechanism. The stirrup winding mechanism comprises a stirrup twining frame, a rolling type bending mechanism and a screw pitch axial feed mechanism. The monitoring device comprises a control device, a counting unit and a rotating speed measuring unit. The machining method comprises the first step of determining the number of winding shafts and the installation position, the second step of adjusting the positions of the winding shafts, the third step of feeding and positioning stirrup material, the fourth step of forming spiral stirrups and the fifth step of cutting spiral stirrups. The machining machine is simple in structure, continuous machining of spiral stirrups is achieved, and the production efficiency is high; meanwhile, the concrete constraining force of beam columns of buildings can be improved through the produced spiral stirrups, and therefore the seismic capacity of the buildings is improved. Practicality is high, and the machining machine and the machining method are low in carbon, environmentally friendly and efficient and save energy.

The invention discloses a fully-automatic die pressing lid maker, which comprises a rack, an extrusion module, a pressing module and a feeding and discharging module. The extrusion module is provided with an extrusion port. A metering pump is arranged on the extrusion module. The pressing module comprises a rotating main body, a rotating support and a driving device. A high-speed forming mold is arranged on the rotating main body. The rotating support is arranged between the rack and the rotating main body. The feeding and discharging module is arranged between the extrusion module and the pressing module. In such a way, the metering pump is used for accurately controlling feeding, and a high-frequency valve is matched to drive a piston head to move to accurately feed a blank. In addition, the rotating support is arranged between the rack and the rotating main body, and is used for enlarging the support area of the rotating main body, so that the rotating main body can rotate more stably. The fully-automatic die pressing lid maker is particularly applied to a heavy large-sized machine. Therefore, the forming quality of a bottle lid is ensured, a defective rate is lowered, and more economic benefits are created for an enterprise.

The invention discloses a top-down construction method of a large underground structure outer wall, comprising the following steps: constructing a supporting pile; borrowing earth; binding a first section of outer wall and ring beam reinforcing steel bars, wherein the ring beam reinforcing steel bars are respectively fixedly connected with reinforcing steel bars in the first section of outer walland the reinforcing steel bars in the supporting piles; raising templates; pouring concrete, wherein the first section of outer wall, the ring beam and the supporting piles are integrated as a whole;and repeating the construction of borrowing earth, binding reinforcing steel bars, raising templates, pouring concrete until the bottom surface of the last section of outer wall reaches the designed elevation. The adoption of a pile hanging technique in the invention ensures safe construction, the adoption of a double anti-leakage technique ensures no leakage inside the outer wall, the adoption ofa fast molding technique accelerates the program progress, and the application of sizing steel templates ensures the appearance quality of the concrete thereby achieving a good effect.

The invention provides a carbon fiber composite foam core sandwich structure wind tunnel fan blade. The wind tunnel fan blade is characterized in that a skin is arranged at the outer part; the internal front end of the skin is connected to a front edge reinforcing area; the internal middle part of the skin is connected with a main bearing beam; an internal space defined by the skin, the front edge reinforcing area and the main bearing beam is filled with a foam core material; the skin comprises an inner skin and an outer skin; the outer skin is laid and adhered to the surface of the inner skin; the thickness of the main bearing beam is changed from 8-10 mm at the root part of the blade to 2-4 mm at the tip of the blade; the thickness of the front edge reinforcing area is 2-5 mm, the thickness of the inner skin is 2-5 mm, and the thickness of the outer skin is 1-3 mm. A molding method comprises the following steps: (a), pasting a blade handle with the foam core material; (b), feeding prepreg; (c), performing paving and glue suction compaction on the front edge reinforcing area and the main bearing beam; (d), performing paving and glue suction compaction on the inner skin; (e), solidifying; (f), molding the outer skin. According to the invention, the high-performance wind tunnel fan blade can be produced, and the use requirements under low-temperature, high-pressure, high-humidity and normal-temperature vacuum simulated climate environments can be met.

The invention discloses a heating layer of a megawatt-grade wind power blade mould and a heating method thereof. The heating layer is arranged between an internal structure layer and an external structure layer that are formed on the surface of the mother mould of the mould; the invention is characterized in that the heating layer comprises at least three sections of heat conducting layer; each section of heat conducting layer is plainly paved at the corresponding positions of the blade tip, the middle part of the blade and the blade root at equal distance in the form of parallel arrangement by a plurality of guide copper pipes that bend into S shape; two ports of the guide cooper pipe extend out of the surface of the external structure layer and is connected with a heating device arranged externally; the heating method comprises the following steps: hot water is led into the heating layer cyclically, so as to meet the circulation mode of water of hot curing of wind power blade products; the hot water flows on the surface of the mould continuously, cyclically and repeatedly, thus meeting the temperature requirement of wind power blade products when in curing. The arrangement of the heating layer improves the moulding quality of large blade products; the dead weight of the mould is reduced, the production cost is low, and the heating method is safe and stable and is easy for application.

The invention relates to a stretch-bending molding process of an angle steel component of a vehicle body and mainly aims to scientifically and rationally overcome the defects of overlarge rebound modulus and section bending deflection of workpieces and the like during the stretch-bending molding of the angle steel component of the vehicle body. The process realizes the emulation of pretension and post-tension corresponding to the minimum rebound modulus, provides a computing formula for the initial length of profiles and a trajectory model of a clamp, improves the forming quality, precision and work efficiency of a stretch-bending workpiece and the manufacturing quality of vehicle steel structure, reduces the manufacturing and maintenance cost, overcomes stretch-bending defects and provides basis for the stretch-bending molding precision control of profile parts. The process initially establishes a mathematical model for length rebound modulus of a multi-curvature profile, can precisely determine the initial length of a blank profile of parts, determines the optimal pretension and post-tension by a simulation method and precisely determines the trajectory of the clamp by establishing a multi-curvature profile stretch-bending module, thereby obtaining the ideal forming quality of the formed profile.

The invention discloses plasma 3D printing remanufacturing equipment and method for a train wheel. The plasma 3D printing remanufacturing equipment consists of a monitoring system, a plasma beam processing system, a machining device for machining a train wheel to be repaired, a triaxial moving mechanism used for driving the machining device to move and a horizontal printing platform used for placing the train wheel to be repaired, wherein the plasma beam processing system consists of a plasma generator, a printing position adjusting device, an air supply device and a powder feeder; and the monitoring system comprises a horizontal movement controller, a temperature detection unit, a distance detection unit, a printing distance adjustment controller and a rotation controller, and the temperature detection unit and the printing distance adjustment controller constitute a temperature adjustment and control device. The plasma 3D printing remanufacturing method comprises the following steps: firstly, detecting defects of the train wheel; and secondly, repairing the train wheel. The plasma 3D printing remanufacturing equipment is reasonable in design, simple and convenient to operate, high in efficiency and good in using effect, the repair process is directly carried out in the atmospheric environment without a closed molding room, the repaired train wheel is good in quality, and the repair efficiency is high.

The invention provides an environmentally-friendly automotive trim composite material and a preparation method thereof. The automotive trim composite material comprises a surface layer, a foaming layer, a hot melt glue layer and a skeleton structure layer, wherein the surface layer is a TPU (Thermoplastic Polyurethanes) film layer, a TPO (Thermoplastic Polyolefin) film layer, a PU (Poly Urethane) film layer, a PP (Propene Polymer) film layer or a genuine leather layer; the foaming layer is a PP foaming layer, a PPF foaming layer, a PU foaming layer or a PE (Poly Ethylene) foaming layer; the hot melt glue layer is a TPU hot melt glue layer, an EVA (Ethylene-vinyl Acetate Copolymer) hot melt glue layer, a PE hot melt glue layer, a PA (Poly A) hot melt glue layer or other hot melt glue layers; the skeleton structure layer is made of a glass fiber modified PP composite material, a carbon fiber modified PP composite material, or an ABS (Acrylonitrile Butadiene Styrene) modified PP composite material. According to the environmentally-friendly automotive trim composite material and the preparation method thereof provided by the invention, the surface layer with the foaming layer is glued with a skeleton structure through an environmentally-friendly hot melt glue, so that the gluing degree is good, the rejection rate is low, the product forming quality is effectively ensured, and the manpower is saved; the product is wear-resisting, high in tearing strength and dimensional stability, not easy to strip, attractive in appearance, and environmentally-friendly in production process without pollution; the product can be recycled.

The invention discloses a side core-pulling mechanism. The side core-pulling mechanism comprises a shovel bade and a slide block which are in sliding fit, wherein an ejector pin hole communicated with a mould cavity is formed in the slide block, an ejector pin capable of moving back and forth in the ejector pin hole is arranged in the ejector pin hole; the ejector pin at least comprises a front section and a rear section, wherein a return spring positioned between the rear section and the slide block sleeves the front section; when the side core-pulling mechanism is in a mould closed state, the rear section can contact with the bottom surface of a slide slot, and the front section can contact with a plastic part in the mould cavity; in a mould opening process of the side core-pulling mechanism, the rear section gradually drops out from the slide slot along with the movement of the shovel base, so that the front part is kept to contact with the plastic part in the mould cavity. The invention further discloses an injection mould. In a mould opening process of backwards dropping out the slide slot, the plastic part is held by the ejector pin to prevent the plastic part from being deformed due to adhesion of the plastic part and the slide block, so that the molding quality of the plastic part is guaranteed, and the qualified rate of the products is increased.

The invention provides a tube truss manufacture process which comprises the steps as follows: blanking of steel tubes, positioning of intersecting points of tube fitting, welding of tube fitting, calibrating of members, pre-assembling, and disassembling of the pre-assembled truss, wherein all the manufacturing and processing links are carried out in sequence. The manufacture process has the advantages as follows: the assembly precisions of intersecting ends and intersecting holes are high; the size deviation is small; a truss body can be assembled quickly; the workload of calibration is small; formation of physical appearance is good; workload and time for polishing are greatly reduced; the quality of construction and formation can be guaranteed; smoothness and progression of all manufacture links are guaranteed; total construction period is guaranteed; material cost of manufacturing of the tube truss can be saved; inputs of manpower and goods and materials are saved; and economical effects of production are improved.

The invention discloses a prestressed concrete hollow square pile comprising a plurality of independent main steel reinforcements. Both ends of each main steel reinforcement are respectively fixedly connected with square end plates; the main steel reinforcements are externally sleeved with steel reinforcement cage racks; each steel reinforcement cage rack comprises a spiral steel reinforcement, and the spiral steel reinforcement is welded with a plurality of auxiliary steel reinforcements; concrete is poured outside the main steel reinforcements and the steel reinforcement cage racks and is combined with the main steel reinforcements and the steel reinforcement cage racks into an integral square pile; and the center of the integral square pile is provided with a central circular hole penetrating through an integral square pile body. The invention aims at providing the prestressed concrete hollow square pile which has the advantages of good molding quality, high single-pile bearing capacity, undamaged steel reinforcement framework before the steel reinforcement framework is used, convenient production, good horizontal anti-bending bearing capacity, high shearing resistant property, convenient stacking and difficult knock damage during pile hoisting, transportation and transferring. The invention also aims at providing a production method of the prestressed concrete hollow square pile.

The invention discloses a special steel formwork for a combined stairway of a high-rise building and an assembly method of the special steel formwork. The special steel formwork comprises two mutually parallel stairway beams, horizontal poles are arranged between the stairway beams, two ends of each horizontal pole are perpendicularly connected with the stairway beams respectively, a stepping vertical pole is perpendicularly arranged on the side wall of each stairway beam and fixed to the stairway beam, horizontal poles are placed at two ends and the center of each stairway beam respectively, angle steel switchover pieces are attached to the side walls and the bottoms of the horizontal poles and cling to the stairway beams, U-shaped fasteners penetrate the angle steel switchover pieces and the stairway beams to serve as fixing parts, the stepping vertical poles are perpendicularly fixed outside the stairway beams, a horizontal positioning mechanism is arranged between each stepping vertical pole and the corresponding stairway beam, the bottom of each stepping vertical pole is connected with a baffle, angle steel switchover pieces are arranged on the baffles, and rib plates and fixing pipes are welded on the baffles and used for enhancing the strength of the baffles and fixing lateral timber formworks. By the aid of an assembly structure, deformation of concrete can be avoided after forming, and the quality of the stairway is ensured.

The invention discloses plasma 3D printing remanufacturing equipment and method for a mold. The equipment comprises a monitoring system, a plasma beam processing system, a machining device for machining a to-be-repaired mold, a horizontal printing table for accommodating the to-be-repaired mold and a temporary fixing element for fixing the to-be-repaired mold temporarily, wherein the plasma beam processing system comprises a plasma generator, a printing position adjusting device, a gas supply device and a powder feeder; the monitoring system comprises a horizontal motion controller, a temperature detection unit, a distance detection unit, a printing distance adjusting controller and a rotation controller, and the temperature detection unit and the printing distance adjusting controller constitute a temperature regulation device. The remanufacturing method comprises steps of 1, mold defect detection and 2, mold repair. The plasma 3D printing remanufacturing equipment and method for the mold have the advantages that the design is reasonable, the operation is simple, convenient and high in efficiency, the use effect is good, a molding cavity is not needed to be closed, a repair process is performed directly in an atmospheric environment, and the quality of the repaired mold is good.

The invention relates to a construction method and a double-layer formwork structure for a cast-in-situ slope roof. The double-layer formwork structure comprises a supporting rod system, a formwork keel, a bottom formwork, a surface formwork and counter-pull positioning waterproof bolts. The bottom of the formwork keel is fixedly supported by the supporting rod system; the bottom formwork is laid on the upper surface of the formwork keel, the surface formwork is parallel to the bottom formwork, and a distance between the surface formwork and the bottom formwork is equal to the thickness of a concrete pouring layer of the slope roof; the bottom formwork and the surface formwork are positioned through the counter-pull positioning waterproof bolts; the surface formwork is formed by a plurality of segmented surface formworks at intervals, and a trough formed by ends of the adjacent segmented surface formworks and the bottom formwork serves as a vibration tamping trough for segmented pouring of concrete. By adoption of the double-layer formwork structure and a segmented concrete pouring and vibration tamping method, the problem of proneness to slipping of concrete in construction of the slope roof is solved, structural compactness, high section size precision and high surface quality of concrete after pouring and tamping are achieved, and the construction method is simple and feasible.

The invention discloses a method for realization of co-curing of a reinforcing rib web composite produced part by high strength soft tooling, rubber produced soft tooling is formed by use of a metal false piece, and the composite produced part is formed by use of the soft tooling. The soft tooling self is provided with a carbon fiber reinforced layer, the size of the product formed by use of the soft tooling can be guaranteed, outside pressure and temperature can be better transferred to the composite produced part, uneven partial pressure, heating rate hysteresis and other phenomena of the produced part can be avoided, the soft tooling is provided with a support structure, paving and preloading and other operation of the produced part can be completed on the soft tooling, the relative position precision and shape size of each part of the formed produced part can be ensured, the soft tooling can be used repeatedly, the reproduction is also more convenient, and the production cost and the manufacturing cycle are effectively reduced.

The invention provides a plastic injection mold for a composite cap overturning bottle cap. The plastic injection mold comprises a mold frame structure assembly, a runner material releasing assembly, a molding assembly, a front mold ejecting out assembly, a thread releasing mechanism assembly and a mold opening sequence control assembly. A gating system is designed into the manner that feeding is carried out from the center of a product through a pin-point gate, and the mod is provided with eight cavities. The ejecting out manner that gas enters from a gas nozzle to carry out gas ejecting is finally adopted. According to the technical scheme, the front mold ejecting out assembly, the thread releasing mechanism, the read mold ejecting mechanism and the improved type mold structure are designed oriented to the problems that in an existing mold technology, an overturning cap sticks to a front die and cannot be completely ejected out in a full-automatic manner in the ejecting out process, manual auxiliary mold releasing is needed, and consequently the mold production efficiency is low; thus, defect-free automatic molding production of the product is achieved, and the product forming quality is effectively ensured; and the plastic injection mold is reasonable in structure design, stable in work, safe and reliable.

The invention discloses plasma 3D printing remanufacturing equipment and method for a roller. The equipment comprises a monitoring system, a plasma beam processing system, a machining device for machining a to-be-repaired roller and a horizontal printing table for holding the to-be-repaired roller, wherein the plasma beam processing system comprises a plasma generator, a printing position adjustment device, a gas supply device and a powder feeder, and the printing position adjustment device comprises a horizontal moving device and a printing distance adjustment device; the monitoring system comprises a horizontal moving controller, a temperature detection unit, a distance detection unit, a printing distance adjustment controller and a rotation controller, and the temperature detection unit and the printing distance adjustment controller form a temperature control device. The remanufacturing method comprises steps as follows: 1, roller defect detection; 2, roller repair. The plasma 3D printing remanufacturing equipment is reasonable in design, simple and convenient to operate, high in efficiency and good in use effect, a forming chamber is not required to be closed, the roller is repaired directly in the atmospheric environment, and the quality of the repaired roller is good.

The invention relates to a composite foam sandwich structure and a forming method thereof. The method includes the steps that lower skin prepreg is laid, then curing is conducted, and a lower skin prefabricated part is obtained; a foam core material is divided into multiple blocked foam core materials, then the surface of each blocked foam core material is sequentially wrapped by a layer of adhesive film and a layer of carbon cloth prepreg, vacuum curing is conducted, and multiple foam core material prefabricated parts are obtained; and the surface of each of the foam core material prefabricated parts is wrapped by a layer of adhesive film, the multiple foam core material prefabricated parts wrapped by the adhesive films are spliced, a dimensional foam prefabricated part is obtained and put in the lower skin prefabricated part, then upper skin prepreg is laid on the surface of the dimensional foam prefabricated part, overall co-bonding forming is conducted, and a composite foam sandwich structure is obtained. By means of the method, under the premise that the weight of the product is reduced, the strength of the dimensional foam core material is improved, and the problems that thefoam sandwich structure is likely to be collapsed, and product inner quality defects are caused are solved.

The invention relates to a punch forming device of a square paper box component. The punch forming device comprises an outer mold and an inner mold. The inner mold and the outer mold can relatively and vertically move, the inner mold is in a cuboid shape, and a cavity where the inner mold is downwards embedded is formed in the outer mold. The inner mold and the outer mold are both made of metal. The punch forming device is characterized in that the bottom of the cavity of the outer mold is hollowed; the cavity of the outer mold is divided into an upper section and a lower section; the portion, corresponding to the periphery of the upper section of the cavity of the outer mold, on a mold body is an upper section of the mold body of the outer mold, and the portion, corresponding to the periphery of the lower section of the cavity of the outer mold, on the mold body is a lower section of the mold body of the outer mold; the upper section of the mold body of the outer mold is provided with a heating component, and the lower section of the mold body of the outer mold is provided with a cooling flowing way; the depth of the upper section of the cavity of the outer mold is more than two times larger than the maximum embedding depth of the inner mold; the depth of the lower section of the cavity of the outer mold is also more than two times larger than the maximum embedding depth of the inner mold. The square paper box component manufactured by the punch forming device is square, clear and sharp in parison corner angle, each paper board top is smooth, upright and straight, and the production speed is high. The invention further provides a punch forming process of the square paper box component.