115results about How to "Speed up molding" patented technology

The invention relates to a laser quick molding method based on coating powder material figure scanning, belonging to the laser quick molding technique. The invention first uses the computer, according to the z-direction layered figure information of three-dimensional CAD mold, to control the laser beam to scan the figure of coating powder material; the coating powder material scanned by laser beam is heated and increases temperature to the solid temperature of said powder material; the outer surface coating layer of said powder material loses the solidify property, to form the ineffective division line consistent with the figure; then the piston of workbench decreases one layer to be laid with powder and scan figure until finishing the three-dimensional figure scanning; at last, heating the whole of coating powder while the attained solidified element is separated at the bound of three-dimensional figure which has lost the solidify property, to attain the three-dimensional solid. The invention can quickly make complex three-dimensional solid, with high efficiency, compactness, strength, accuracy and surface fineness.

A laser 3D printer capable of finishing high-precision sand mold manufacture at one step comprises a printing device, a feeding device, a material distribution device and a drying device, wherein the printing device comprises a base, a lifting device is arranged on the base for controlling the rise and fall of a lifting platform, a sand paving platform is arranged on the lifting platform, and a laser printing head is arranged above the sand paving platform; the feeding device comprises a sand box and a feeding pipeline; the material distribution device comprises a hopper and a sand pushing plate, the hopper is located at the bottom end of the feeding pipeline and used for distributing sand provided by the feeding device on the sand paving platform, and the sand pushing plate is used for uniformly pushing the sand flat; the laser printing head is used for printing patterns on a sand surface; and the drying device is used for drying a printed sand mold. The laser 3D printer can effectively increase molding speed and efficiency and can strictly control printing sizes, so that the size precision of molded components is high. By adopting the printer, sand molds with various sizes and complicated curvy surfaces can be printed, and the range of applications is wide.

A press forming method is disclosed, wherein press forming can be effected at high speed while maintaining the horizontal state of a slide plate in press-forming work by a press machine. A press machine is used in which the slide plate is pressed by a plurality of servo-motor drive sources. In trial forming, the slide plate is sufficiently slowly moved to measure the delay of each drive source. According to the magnitude of the delay of each drive source or according to the difference between the trial forming speed and the production forming speed, the respective speeds of the drive sources are corrected, and trial forming is repeated on the basis of the corrected speed to derive conditions that enable press forming at high forming speed suitable for mass production while maintaining the horizontal state of the slide plate to the extent of ensuring sufficient product accuracy.

The invention relates to high-precision 3D sand mold printing equipment. The high-precision 3D sand mold printing equipment comprises a support frame, a sand box, an ink jet assembly and a sand feeding assembly, wherein sliding rails and lifting mechanisms are arranged at the two outer ends of the sand box; a mould lifting frame connected with the lifting mechanisms is arranged in the sand box; the ink jet assembly comprises an ink jet trolley, a first guide rail and second guide rails; the ink jet trolley is connected with the first guide rail; the two ends of the first guide rail are connected with the second guide rails; the second guide rails are arranged at the upper end of the support frame; the sand feeding assembly comprises a sand storage tank, a spiral rod, a scraper and a vibration motor; the two ends of the sand storage tank are slidably connected with third guide rails; the spiral rod is arranged inside the sand storage tank; and the scraper and the vibration motor are respectively arranged on the two sides of the bottom of the sand storage tank. According to the printing equipment provided by the invention, through the cooperation of the ink jet assembly, the sand feeding assembly and the sand box, the actions of automatic sand spreading, printing, sand surface sedimentation, residual sand collection and the like can be realized, the automation degree is high, andthe rapid forming of any complex part can be realized.

The invention discloses a method for preparing high-performance concrete and application. The method comprises the following steps of: designing a concrete mixing proportion; sequentially adding fine aggregate, engineering fibers and gel material into a stirrer, and stirring till the engineering fibers are uniformly distributed; and adding water to prepare mortar, adding coarse aggregate, stirring uniformly, and adding an admixture to obtain the high-performance concrete required by design. The prepared high-performance concrete can be used for preparing high-performance concrete products. The method is simple and convenient for processing; the length of the utilized engineering fibers is easily controlled, so that the concrete has good workability, the forming velocity and the production efficiency are improved, the concrete has the advantages of tensile resistance, shearing resistance, cracking resistance, fatigue resistance, high toughness and the like, and concrete cracks caused by temperature stress can be reduced; the microstructure of the cement slurry is improved, and the compactness of the concrete is increased, so that the strength and the durability of the concrete are improved, and the service life of the concrete is prolonged; and the concrete has good safety and economic and social benefits.

In a method and an apparatus for producing pipes having a transverse profile from thermoplastic material, mold segment halves are used on a molding path and are circulated in pairs. A main conveying device is provided for returning the mold segment halves, the main conveying device being designed like a gantry crane. A conveying bridge encompassing the molding path is provided with two conveying carriages which are displaceable at right angles to a direction of production and in opposite directions relative to each other and to which is in each case attached a downwards facing conveying arm comprising a holding device for in each case one mold segment half. Downstream of the downstream end of the molding path are provided parking positions for additional mold segment halves. Disposed downstream of the molding path is an auxiliary conveying device which is provided for removing the additional mold segment halves from the molding path in order to subsequently return them to the parking positions.

The invention provides a method of patterning flowable material on a surface. The method comprises providing the surface with at least one channel and at least one deposition region connected to the at least one channel, the width of the channel being less than the width of the deposition region, and depositing flowable material in the deposition region such that when the material makes contact with the channel the material is directed into said channel by capillary forces, the receding contact angle of the flowable material in the deposition region being less than 30°.

The invention relates to the technical field of production moulds, in particular to a quick cooling type production mould for a pedal main body of a sea farming net cage. The quick cooling type production mould comprises an extrusion mould head, a vacuum cooling and molding mould and a vacuum molding water tank, which are sequentially connected. According to the quick cooling type production mould, an inner rib and an inner wall of the pedal main body are cooled by a metal air guide tube of the extrusion mould head, vacuum-pumping is carried out by utilizing a ring-shaped vacuum slot of the vacuum cooling and molding mould, and frozen water is injected to quickly cool and mould the outer wall of the pedal main body, and finally, continuous cooling and vacuum-pumping are carried out in the vacuum molding water tank for strengthening molding. According to the quick cooling type production mould, integral molding and cooling speed of a pedal is increased, production efficiency is improved, and dimension and performance of the pedal main body are guaranteed to meet standard requirements.

The invention relates to an automatic steel bar bent hoop forming device, and belongs to the technical field of building machines. The forming device comprises a program control box, a rack, a transmission track chain, a stepping motor, stirrup female dies, a forming press A, a forming press B, a forming press C and an unloading push head. The transmission track chain is annularly arranged on the rack through the stepping motor. The multiple stirrup female dies are arranged on the transmission track chain at intervals. The forming press A, the forming press B, the forming press C and the unloading push head are arranged on the inner side of one side of the transmission track chain at intervals. The forming device is simple in structure and high in practicability. In the work process, the stirrup female dies intermittently move along with the transmission track chain, downward pressing is conducted one by one through the forming press A, the forming press B and the forming press C, and accordingly steel bar bent hoop manufacturing is finished. Compared with an existing hoop bending machine, the steel bar bent hoop pressing steps are reduced, the bent hoop forming speed and quality are improved, and the labor intensity of workers is lowered; and the automatic steel bar bent hoop forming device is particularly suitable for being used for steel bar bent hoop forming.

The invention discloses an automatic laying device for a similar material simulation test. The automatic laying device comprises a weighing hopper, a stirrer, an elevation type belt conveyor, a similar material test chamber and multiple material bins. Discharging openings of the multiple material bins are connected with a feeding opening of the weighing hopper. A discharging opening of the weighing hopper is connected with a feeding opening of the stirrer. The automatic laying device has the beneficial effects that a series of technological improvement is conducted based on the laying and tamping method adopted in the similar material model production process; by means of the weighing hopper and the stirrer, all materials are mixed and stirred according to certain ratios, and molding quality of a similar material model is greatly improved; after stirring, the materials are conveyed into the similar material test chamber through the belt conveyor and then compacted through pressing plates; and labor intensity is lowered, in addition, the molding speed of the similar material model can be remarkably increased, the molding quality of the similar material model can be remarkably improved, and consistency of the similitude ratio of the simulation stratum thickness to strength obtained after molding can be remarkably improved.

The invention relates to the technical field of injection molding machines, and in particular relates to a novel injection device for an injection molding machine. The novel injection device comprises a connecting body, a material storing cylinder, an injection material barrel, a material pushing plug, an injection oil cylinder and an injection screw rod; the connecting body is connected with the material storing cylinder; the injection material barrel is arranged on the material storing cylinder; the material pushing plug is arranged in the material storing cylinder; the injection oil cylinder is arranged at one end of the injection material barrel; the injection screw rod is arranged in the injection material barrel; a material supply gluing device is arranged at the front end of the material pushing plug; a gluing device is arranged at the front end of the injection screw rod; and an injection nozzle is arranged on the connecting body. The novel injection device for the injection molding machine is simple in structure, practical and convenient, improves the synchronization, reduces the plasticizing period, accelerates the formation speed, improves the production efficiency of a product, ensures the injection precision of the injection molding machine, improves the quality of the product, solves the phenomena of glue leaking and material blocking, and is beneficial for application and popularization.

The invention discloses drawing type preparation equipment and method for a hollow filter stick, and the preparation equipment comprises an opener which is a double-layer opener and comprises an upper-layer opening mechanism and a lower-layer opening mechanism; a high-pressure pipe tobacco feeder which is located on the downstream of the opener and comprises a high-pressure nozzle, wherein the high-pressure nozzle is of a hollow cylindrical structure, a core rod is located on the central axis of the high-pressure nozzle, an annular cavity is formed in the high-pressure nozzle, a through hole is formed in the inner side wall of the annular cavity, and the annular cavity is connected with a compressed air source; a forming module which is located on the downstream of the high-pressure pipe tobacco feeder, a conical flow guide part, a forming hot die and a forming cold die assembly are sequentially arranged in the moving direction of the pipe tobacco bundle, the forming hot die is connected with a steam source, and the forming cold die is connected with a cold air source. The equipment can be matched according to the hardness and quality requirements of the filter stick, and the effect of forming the filter stick is ensured.

The invention provides a polypropylene resin for hot filling bottles. The polypropylene resin comprises a polypropylene resin base material, an antioxidant, a nucleating agent and an acid neutralizer,wherein the polypropylene resin base material is propylene/1-butene random copolymer polypropylene, the butene content of the polypropylene resin base material is 1-10wt%, the melting temperature is140-165 DEG C, and the melt flow rate is 3.0-25.0g/10min. Compared with an existing ethylene/propylene random copolymer polypropylene, the propylene/1-butene random copolymer polypropylene obtained bythe invention has the advantages of better crystallization capacity, higher heat resistance and rigidity, the thermal deformation temperature reaches 80-90 DEG C, the flexural modulus reaches 1200-1400 MPa, and the polypropylene resin is suitable for injection stretch blow molding and can be applied to hot filling beverage bottles.

The invention relates to a processing device and a processing method for a circular single dovetail groove on the back of a ceramic tile. The processing device includes a hollow pressure seat lifting cover fixed at the lower end of an air hammer and a pressure seat sliding sleeve matching with the pressure seat lifting cover. seat; the upper end of the lifting cover of the press seat is provided with a cover surface, and the lower end is provided with a lifting arm extending inward; And the lifted arm located in the cover of the pressure seat lifts; the lifted arm is limited and slid in the cavity formed by the cover surface and the lifting arm; the pressure seat is evenly distributed with a plurality of vertical hollow holes Cylinder; the upper end of the hollow cylinder is flush with the top of the press seat, and the lower end protrudes downward from the press seat, and the part protruding from the press seat is formed by sequentially overlapping a plurality of first fan-shaped pressing pieces that can be turned inside and outside; the The processing device and processing method for the circular single dovetail groove on the back of the ceramic tile can effectively, quickly and stably form the circular single dovetail groove.

Provided is an integrated forming machine for a honeycomb blind. The machine comprises a frame, on which a unreeling rack, a guide mechanism, a forming mechanism, a heat setting mechanism, a gluing device and a fixed-length cutting mechanism. One side of the fixed-length cutting mechanism is provided with a cloth groove. An overturn mechanism is arranged between the cloth groove and the fixed-length cutting mechanism. An adhering compaction mechanism is arranged above the cloth groove.The integrated forming machine for the honeycomb blind has following beneficial effects: through the unreeling rack, unreeling speed of cloth is automatically adjusted; under effect of embossing wheels, two embossing lines running in parallel with cloth-feeding direction of cloth of support rolls are pressed and guided by folding through folding holes in forming and guide pieces to make honeycomb-shaped cloth strips so that a better forming effect of cloth is ensured. By automatic gluing and fixed-length cutting of a cloth-feeding track, machining speed is increased. Under effect of the overturn mechanism, cut honeycomb-shaped cloth strips are arranged in the cloth groove. Through the adhering compaction mechanism, the honeycomb blind is made so that forming speed and efficiency are increased.

An object of the present invention is to provide a prepreg and a laminate for producing a laminate suitable as a structural material, which have excellent compressive strength and interlaminar fractural toughness values, and can be firmly integrated with another structural member by welding. The present invention provides a prepreg including the following structural components [A] reinforcing fibers, [B] a thermosetting resin, and [C] a thermoplastic resin, in which [B] has a rubbery state elastic modulus of 10 MPa or more at a temperature obtained by adding 50° C. to a glass transition temperature in a state in which a degree of cure is 90% or more, [C] is present in a surface of the prepreg, and the reinforcing fibers [A] are present, which are included in a resin area including {B] and a resin area including [C] across an interface between the two resin areas.

The invention discloses an injection mold for automobile bonnets. The injection mold comprises a lower die, an electric push rod, an upper die and a disc, wherein a push device is fixedly installed inthe bottom center of the lower die, a push hole is formed in the bottom of the side of the lower die, the electric push rod is fixed to the side of the lower die, a signal control switch is installedon the electric push rod, a connecting rod is perpendicularly connected to the edge of the electric push rod, an ejector pin is arranged on the connecting rod, the ejector pin is located in the pushhole, the upper die is located just above the lower die, a lifting rod is fixedly connected to the top center of the upper die, an injection hole is formed in the top edge of the upper die, a chute isreserved in the side of the injection hole, the disc is arranged in the chute, a sliding block is connected to the top of the disc, and the sliding block is located above the chute. According to theinjection mold for the automobile bonnets, the product ejection smoothness is increased, the product ejection deformation damage is reduced, and additionally, the product forming quality and speed areincreased.

A method of manufacturing a support body for run flat, wherein in a case where the circumferential wall of a tubular blank B is pressingly held between inner and outer molding rollers 1 and 2 and where the molding rollers 1 and 2 are rotated to form at least one circumferentially continuous protruding part on the circumferential wall of the tubular blank B to process the tubular blank B into an annular shell, a molding roller having the maximum outer diameter that is substantially the same as the inner diameter of the tubular blank B is used as the inner molding roller 1.