815results about How to "Improve molding quality" patented technology

The invention relates to the technical field of real-time prediction of three-dimensional forms, in particular to a real-time dynamic prediction system and method for the three-dimensional form of a high-pressure jet grouting pile. The method comprises the following steps: carrying out stratum characteristic identification on a construction site to obtain stratum distribution data; key monitoring point positions are determined according to the stratum distribution data, and a multi-source sensor monitoring network is established; carrying out anti-interference optimization processing on the multi-source sensor monitoring network, and carrying out real-time acquisition on high-pressure jet grouting parameters to obtain real-time high-pressure jet grouting data; and spatio-temporal evolution processing based on injection pressure, lifting speed and rotating speed is conducted on the real-time high-pressure jet grouting data, and parameter change characteristic data are generated. According to the method, the construction stratum distribution and the high-pressure jet grouting parameters are obtained and analyzed in real time, the parameter-stratum response relation model is established, grout diffusion and pile body forming dynamic prediction are conducted on different stratum characteristics in a targeted mode, and the precise construction capacity under the complex stratum condition is greatly improved.

The invention discloses a casting shape / property regulation and control device and method based on a casting mold temperature control technology, and relates to the technical field of intelligent casting. The invention aims to solve the problems of uncontrollable limitation of a traditional casting solidification control technology in a casting solidification process and low yield of a thin-wall casting process. According to the casting shape regulation and control technology based on the casting mold temperature control technology, the casting mold temperature field is controlled before casting mold filling, and mold filling of a complex thin-wall casting is facilitated; the casting solidification process is controlled through the cooling medium, the mechanical property of the casting is improved, and the casting quality is improved. The invention can obtain the casting shape / property regulation and control device and the regulation and control method based on the casting mold temperature control technology.

The invention relates to the technical field of data processing and three-dimensional model construction, in particular to an intelligent three-dimensional model design method and system based on small-opening press-blow molding equipment. The method comprises the following steps that an intelligent sensor is used for collecting parameters of small-opening press-blow forming equipment, and initial equipment parameter information is recorded; according to the initial equipment parameter information, establishing an equipment three-dimensional initial model by using computer aided design software; and acquiring characteristic data of the glass material drops, inputting the characteristic data of the glass material drops into the three-dimensional initial model of the equipment, simulating a press-blow molding process by utilizing simulation software, and carrying out influence evaluation on the simulated press-blow molding process to obtain a molding process evaluation result. Through a data processing technology, a three-dimensional modeling technology and an automatic control technology, various parameters of the small-opening press-blow molding equipment are associated and evaluated, and an intelligent three-dimensional model of the equipment is constructed; and the accuracy of control operation of the forming equipment is improved, so that the produced glass containers are kept consistent in specification.

The invention discloses integrated machining equipment for door frame reinforcing and supporting connecting pieces, relates to the technical field of door frame connecting piece machining equipment, and aims to solve the problems that in the door frame connecting piece machining process of existing machining equipment, time and labor are wasted, the machining precision is low, and the equipment is prone to being damaged. Comprising a rack and a forming assembly, the forming assembly is installed on the rack, and rolling forming is conducted on a plate through the forming assembly; a pretreatment assembly and a stamping assembly are arranged at the input end and the output end of the forming assembly respectively, the pretreatment assembly is used for cleaning sundries and removing flashes of a plate, and the stamping assembly is used for punching and bending the plate; the forming assembly and the stamping assembly are integrated on the machine frame, when the door frame connecting piece is produced, one-time forming can be achieved, secondary clamping installation of workers is reduced, the working efficiency is improved, and meanwhile the machining precision of the connecting piece is improved.

The utility model relates to a cold heading device for a special-shaped sleeve. The cold heading device comprises a cutting mechanism, an ejection mechanism, a conveying mechanism and six dies. The conveying mechanism moves between the ejection mechanism and the six molds for feeding; the first upsetting die is used for chamfering the lower end of an initial blank; the second upsetting die is used for chamfering the upper end of a turned first blank and punching concave holes in two ends; the third upsetting die is used for stretching and forming a second blank turned again and deepening the depth of an inner hole in the upper end to be 1 / 3 of the height of the second blank; the four-upsetting die is used for stretching and forming a third blank again and deepening a lower end inner hole to be 2 / 3 of the height of the third blank, the through hole die is used for enabling an upper end inner hole and a lower end inner hole of a fourth blank to be communicated to form a through hole, and the final upsetting die is used for enabling the middle of a fifth blank to form a convex arc. By the adoption of the technical scheme, the mold manufacturing structure is simple in technological process and convenient to maintain; the die is long in service life and low in cost.

The invention discloses a vacuum sealing method for high-temperature forming of a composite autoclave. The technical problem that a vacuum bag is prone to deformation at high temperature in the prior art is solved. The vacuum sealing method for high-temperature forming of the composite autoclave mainly comprises the steps of assembling of a forming mold, laying of prepreg, vacuum coating of the mold, curing of the autoclave and demolding. The vacuum bag used for wrapping the mold is made of aluminum foil or glass fiber reinforced aluminum foil. The plastic film has good ductility, electrical conductivity, thermal conductivity and shading performance, and can effectively block oxygen, moisture and peculiar smell. The problem of vacuum leakage in the curing process of polyimide and other high-temperature-resistant materials is effectively solved, and a reliable vacuum auxiliary material is provided for molding of products with high temperature resistance level and certain functionality. The method not only improves the forming quality of the composite material, but also reduces the production cost, and has remarkable economic benefits and social benefits.

The invention discloses a laser processing head posture adjusting mechanism for a thermoplastic fiber placement machine, which comprises a flange plate, a laser processing head mounting arm and a laser processing head translation arm, the laser processing head posture adjusting mechanism is rooted at the tail end of a machine tool of the fiber placement machine through the flange plate, and the laser processing head translation arm is mounted on the laser processing head mounting arm. The laser processing head is installed at the end, close to the fiber placement head moving end, of the laser processing head translation arm, one end of the laser processing head installation arm is rooted on the flange plate, and the other end of the laser processing head installation arm extends out of a fiber placement machine pipeline package gap and extends towards the fiber placement head moving end. The mounting position of the laser processing head is close to the moving end of the fiber placement head under the condition that the laser processing head does not interfere with the fiber placement machine pipeline package, and laser emitted by the laser processing head exactly falls on the fiber placement head compression roller after passing through the set focal length of the laser. According to the invention, automatic locking / separation of the laser processing head and the moving end of the fiber placement head is realized.

The invention provides a forming method of a combined profile structure. The forming method comprises the following steps that S1, primary rolling is conducted, specifically, a primary roller press gradually changes the section of a material belt into a circular tube shape through a pre-pressing roller and a plurality of sets of forming rollers; s2, external welding, wherein the two aligned side edges of the material belt are welded through a welding machine; s3, secondary rolling is conducted, specifically, a secondary rolling machine gradually rolls the section shape of the material belt from a circular tube shape to a flat square tube shape through a plurality of sets of shaping rollers and shape righting rollers; s5, cutting off: cutting off the material belt according to a preset length through a cutting machine; s6, laser welding is conducted, specifically, at least two strip-shaped reinforcing ribs are inserted into an inner hole of the cut-off material strip, the reinforcing ribs are arranged in parallel to the axial direction of the material strip, and the multiple reinforcing ribs are inserted into the flat square tubular structure at intervals in the left-right direction; and then the upper ends and the lower ends of the reinforcing ribs are welded to the upper side wall and the lower side wall of the flat square tubular structure correspondingly through a laser welding machine. The invention further provides a combined profile structure.

The invention relates to a packaging electrode, a manufacturing method thereof and a semiconductor packaging device. The manufacturing method comprises the steps that a diamond composite metal base layer is prepared, a first alloy layer and a second alloy layer are formed on the upper side surface and the lower side surface of the diamond composite metal base layer respectively, and a conductive flange is formed on the side wall of the diamond composite metal base layer; the diamond composite metal base layer, the first alloy layer, the second alloy layer and the conductive flange are of an integrated structure. The surfaces, deviating from the diamond composite metal base layer, of the first alloy layer and the second alloy layer are machining surfaces and are used for being in direct contact with a chip; the flange welding surface of the conductive flange is free of diamond composition. According to the invention, the forming quality and performance of the large-size packaging electrode can be improved, so that the packaging reliability of the semiconductor packaging device can be effectively improved.

The present invention provides a strip steel rolling welding device, comprising a strip steel limiting assembly, a strip steel power assembly, a strip steel outer edge shaping assembly, a rolling device, a round tube heating assembly, an opening shaping assembly, a straight seam welding assembly and a weld scar cutting assembly, which are sequentially arranged. The strip steel outer edge shaping assembly is used to cut the two side edges of the strip steel into oppositely arranged grooves. The strip steel rolling welding device described in the present invention can cut the two side profiles of the strip steel into opposite grooves through the strip steel outer edge shaping assembly. After rolling, the two grooves fit together, and then the fitting grooves are melt-welded by the straight seam welding assembly. During welding, the strip steel body located at the upper groove position is used to release the welding material for molten welding, and the strip steel body located at the lower groove position is used to receive the molten welding material. The molten welding material is self-gathered in the weld seam by gravity and surface tension to ensure the welding quality, and can reduce or avoid the weld scar inside the welded pipe, thereby improving the forming quality.

The invention provides forming equipment for U-shaped groove plates on the two sides. The forming equipment comprises a plurality of forming roller sets which are arranged at intervals in the advancing direction. The plurality of forming roller groups are sequentially provided with a first side edge upright area, a first side edge inclined area and a first side edge parallel area along the advancing direction; the two ends of the upper forming assembly of the forming roller set located in the first side parallel area are each provided with a first side parallel wheel, the two ends of the lower forming assembly of the forming roller set located in the first side parallel area are each provided with a second side parallel wheel, and the first side parallel wheels and the second side parallel wheels correspond to each other to form a third forming gap. And when the profile plate passes through the third forming gap, the first inclined section of the profile plate gradually gets close to the main body of the profile plate, so that the first inclined section is parallel to the main body of the profile plate to form a U-shaped groove structure. According to the technical scheme, the forming equipment capable of forming the U-shaped groove plates on the two sides can be provided.

The utility model relates to the technical field of transformer cushion blocks, and provides a 110kV dry-type transformer cushion block pouring mold which comprises a top plate, a bottom plate, a front plate and two side plates. The top plate is provided with a filling port; a first bottom surface, a second bottom surface and a partition are sequentially arranged at the bottom of the top plate; an overhanging extension part is arranged between the first bottom surface and the front plate at the bottom of the top plate; a third bottom surface is arranged at the bottom of the overhanging extension part, and a vertical concave part is arranged on the third bottom surface; the third bottom face is lower than the bottom of the partition plate. Castable is injected into the die cavity through the injection port in the top plate, the whole die cavity can be filled with the castable, and the forming quality of the cushion block is high.

The invention belongs to the technical field of injection molding equipment, and particularly relates to a new energy automobile radiator water chamber injection molding forming mold which comprises a fixed mold assembly and a movable mold assembly movably arranged over the fixed mold assembly, and the fixed mold assembly comprises a base, a lower forming mold and a cooling unit; the cooling unit comprises a plurality of partition plates and cooling pipelines arranged between the two partition plates, each cooling pipeline communicates with a water pump, the surfaces of any two adjacent partition plates, the inner wall of the lower forming die and the upper surface of the fixed die assembly jointly form a first cooling cavity, and the cooling unit further comprises cooling nozzles arranged in the first cooling cavities. And the movable mold assembly comprises a movable seat and an upper forming mold, the movable seat is arranged right above the base in a sliding manner and moves vertically, and the upper forming mold is embedded in the surface of the base. And the forming quality of a final product still needs to be improved.

The invention discloses a detachable assembly type building mold, relates to the technical field of building molds, and solves the technical problems that in the concrete forming process, the side pressure on a fixed baffle in the mold can be increased, and formwork deformation and slurry leakage are likely to be caused. Comprising two fixed templates which are installed on a bottom template in a sliding mode, and a base is arranged at the bottom of the bottom template; the supporting and positioning mechanisms are mounted on the base and support the base, and the two supporting and positioning mechanisms play a role in limiting and supporting the two fixed templates; the supporting and positioning mechanism comprises a bottom rail mounted on the upper surface of the base; according to the invention, the two fixed templates can be supported, the pressure of internal concrete on the fixed templates is shared, the deformation amount is reduced, and inward thrust is applied to the fixed templates in the mounting and supporting process, so that the fastening bolts on the side surfaces can be conveniently aligned and connected to adapt to the fixed templates with different heights; and the machining safety and stability of the mold on the concrete prefabricated part are improved.

The invention relates to the technical field of metal composite wires, in particular to a manufacturing method and device of a double-layer metal composite wire. The manufacturing method comprises the following steps that S1, a double-layer metal composite blank rod is taken, the double-layer metal composite blank rod comprises a core layer metal wire and a metal coating layer coating the outer side of the core layer metal wire, and the tensile strength of the metal coating layer is larger than that of the core layer metal wire; s2, the double-layer metal composite blank rod is subjected to multi-pass drawing, a composite metal wire is obtained, pulse current is applied to a metal coating layer located in a drawing area in the drawing process, the mechanical property of the metal coating layer is made to be matched with that of a core layer metal wire, and interface fracture is restrained; and S3, the composite metal wire is subjected to annealing treatment, and the composite metal wire is obtained. According to the method, the effect that only the metal coating layer is softened is achieved by controlling pulse current parameters and utilizing the skin effect and the electroplastic performance, the drawing deformation of the inner metal and the drawing deformation of the outer metal are consistent, the quality of the composite wire is improved, and the method is suitable for the situation that the conductivity of the inner-layer metal is larger than that of the outer-layer metal.

The invention discloses a polyimide hot-melt prepreg, a composite material and a preparation method of the polyimide hot-melt prepreg and the composite material, and belongs to the technical field of composite materials. The preparation method comprises the following steps: preparing a polyimide resin solution for impregnating fibers and self-adhering a surface layer from polyimide, a single solvent and a mixed solvent; preparing semi-solid polyimide prepreg for fiber impregnation and surface layer self-adhesion based on the two polyimide resin solutions, and then preparing an adhesive film and sequentially compounding with fiber cloth to obtain a fiber prepreg; and preparing the polyimide hot-melt prepreg based on the fiber prepreg. According to the preparation method disclosed by the invention, the reinforced fibers are fully infiltrated, and then the toughened and tackified resin layer is compounded on the surfaces of the impregnated reinforced fibers, so that the polyimide hot-melt prepreg with controllable resin content and good paving adhesiveness is obtained, and therefore, the low-porosity high-quality fiber reinforced composite material is prepared, the control difficulty of a forming process is greatly reduced, and the production efficiency is improved. The production efficiency is improved.

The utility model relates to the field of plastic production, in particular to a plastic cup one-to-eight combined mold which comprises a mold body, the mold body is composed of an upper mold body located at the upper end and a lower mold body located at the lower end, the upper mold body is composed of an upper mold plate, an upper mold seat plate and an upper mold fixing plate, eight cavities are formed in the bottom face of the upper mold plate, and the lower mold plate is located at the lower end of the mold body. A sprue bush is inserted into the upper mold plate, an injection molding opening is formed in the center of the upper mold fixing plate, the lower mold is composed of a lower mold fixing plate, a push plate and a lower mold plate, a push plate guide column is installed at the center of the push plate, eight mold cores are installed on the top face of the lower mold plate, a guide column is installed on the top face of the lower mold plate, and the lower mold plate is hollow. A push rod fixing plate is connected into the lower die plate in a sleeved mode, eight push rods are arranged on the top face of the push rod fixing plate, and a material pulling rod and a reset rod are arranged on the top face of the push rod fixing plate. According to the design, stress is more uniform during working, the forming quality of the plastic cup is high, meanwhile, production efficiency is high, and use is convenient.

The utility model relates to the field of train head covers, and discloses a train head cover forming die which comprises a base, a hydraulic machine is fixedly connected to the middle of the top end of the base, an upper die is fixedly connected to the bottom end of an output shaft of the hydraulic machine, a sliding groove is formed in the inner wall of the top end of the base, and a rail is arranged on the inner wall of the bottom end of the sliding groove. A moving assembly is arranged on the upper surface of the rail and comprises rolling wheels, the bottom ends of the rolling wheels rotate on the upper surface of the rail, a bottom plate is fixedly connected to the top ends of the rolling wheels, a positioning rod is fixedly connected to the top end of the bottom plate, a lower mold is slidably connected to the outer wall of the top end of the positioning rod, and a first limiting plate is fixedly connected to the bottom end of the bottom plate. According to the utility model, through the cooperative use of the moving assembly and the base, when the train headstock cover is formed and manufactured, the lower die can be quickly replaced, and workers can conveniently clean the replaced lower die, so that the manufacturing efficiency of the headstock cover is improved.

The invention relates to the technical field of 3D printing, and particularly discloses a supporting method and device for 3D printing sintering, and the supporting method comprises the steps that (1) high-temperature-resistant material powder is laid at the bottom in a high-temperature-resistant box body; and (2) the bottom of a workblank obtained through 3D printing is embedded into the high-temperature-resistant material powder, so that the workblank is supported by the high-temperature-resistant material powder, and gaps generated by shrinkage deformation of the workblank are filled with the high-temperature-resistant material powder during sintering. According to the supporting method and the supporting device for 3D printing sintering, the supporting effect on the workblank is good, the workblank is not prone to deformation in the sintering process and can be easily taken out of the supporting structure, the cost is reduced, and the 3D printing range is widened.

The invention relates to the technical field of monocrystalline silicon processing, particularly provides a preparation method of monocrystalline silicon, and aims to solve the problem that the crystal quality is influenced by crystal distortion in the existing monocrystalline silicon preparation process. In order to achieve the purpose, the preparation method of the monocrystalline silicon comprises the steps that in the first stage of equal-diameter growth of the monocrystalline silicon, the crystal pulling speed is controlled to be gradually increased to the preset pulling speed, and the liquid opening distance is controlled to be gradually reduced to the preset distance; and in the second stage of equal-diameter growth of the monocrystalline silicon, controlling the crystal pulling speed to maintain the preset pulling speed, and controlling the liquid opening distance to maintain the preset distance. According to the method, the two technological parameters of the liquid opening distance and the crystal pulling speed in the monocrystalline silicon growth process are adjusted in advance, the temperature consistency of the area nearby the molten silicon liquid level can be improved, a stable thermal field is formed at the junction of the crystal and the silicon solution, and therefore the distortion proportion of the crystal can be reduced, and the crystal forming quality is improved.

The invention relates to the technical field of sandwich composite materials, and discloses a web-reinforced sandwich composite structure prepared by using a thermal expansion compression molding process and a method of the web-reinforced sandwich composite structure. Firstly, a light core (hard foam, balsa wood, honeycombs and the like) is cut into a required shape, an expandable foam prepreg film is cut according to a designed web structure, the interior and exterior of the web structure and the outer contour of the whole product are coated with expandable foam glue, then composite prepreg is laid on the product according to design requirements, and the composite prepreg is formed. And the web plate reinforced sandwich composite material structure is formed by utilizing internal expansion force generated by limited foaming in a thermal expansion foam pre-impregnated glue film mold. The maximum expansion force of the thermal expansion compression molding process can be maintained after the epoxy resin gel point, so that the performance of the web reinforced sandwich composite material is fully ensured, and the structural performance of the prepared web is enhanced.

The utility model discloses a photovoltaic support water chute extrusion forming device, which comprises a rack, a hydraulic cylinder, a lifting frame, an extrusion block, forming seats, a connecting plate and a cutting mechanism, the hydraulic cylinder is fixedly arranged on the rack, the lifting frame is fixedly connected with the output end of the hydraulic cylinder, the rack is fixedly provided with two forming seats which are distributed up and down, the forming seats are provided with forming grooves, and the cutting mechanism is arranged in the forming grooves. And a connecting plate is fixedly installed on the lifting frame, extrusion blocks are fixed to the upper end and the lower end of the connecting plate, and the cutting mechanism comprises a protective shell, a first driving motor, a cutting cutterhead, a transverse plate, an elastic piece, a pressing plate and a fixed pressing seat. The device disclosed by the utility model can be used for simultaneously processing two plates, and when one plate is extruded and formed, the other plate is fed, so that the consumed time for moving the plates can be saved, the automatic blanking of the water chute can be realized, and the production efficiency is improved; and the plate is firstly cut and then is subjected to extrusion forming, so that the plate extrusion effect can be improved, and the forming quality of the water chute is improved.

The invention relates to the technical field of welding of a titanium alloy or titanium heat exchange tube and a tube plate, and discloses a welding method and a welding protection device for the titanium alloy heat exchange tube and the tube plate. 2, positioning and mounting the positioning shaft head; step 3, mounting and adjusting a main air tap; step 4, mounting and adjusting the auxiliary air tap; 5, welding the tube plate and the heat exchange tube; a welding protection device for welding a titanium alloy heat exchange tube and a tube plate mainly comprises a positioning shaft head, a main air tap, a tungsten electrode and an auxiliary air tap. The device has the beneficial effects that all-directional argon isolation air protection near a welding seam, a heat affected zone and a welding zone in the welding process of the tube plate and the heat exchange tube is achieved, and the protection range of argon in the welding process is enlarged; and the uniformity, compactness and strength of the welding seam are improved, the forming quality of the welding seam is improved on the whole, and a silver welding joint is obtained.

The utility model belongs to the technical field of butadiene styrene rubber production, and particularly relates to a feeding device for butadiene styrene rubber production, which comprises a cylinder body and a first pipe orifice, the first pipe orifice is arranged on the top end face of the cylinder body, and a conical sieve plate is arranged in the cylinder body below the first pipe orifice. A plurality of vibration motors are uniformly arranged on the inner wall of the cylinder body below the conical sieve plate in the circumferential direction, the output ends of the vibration motors are connected with a connecting plate, the connecting plate is connected with the conical sieve plate, a slag discharge pipe is arranged below the conical sieve plate, and the slag discharge pipe is connected with the conical sieve plate through an elastic cloth pipe; the utility model has the advantages that: through the arrangement of the conical sieve plate, the elastic scraper blade, the vibration motor, the cambered surface elastic plate and the like, various raw materials can be subjected to bonding separation treatment before being fed, and also can be subjected to efficient dust and slag removal treatment; and the forming quality of the rubber is effectively improved.

The utility model discloses a filling forming mold of a washing machine balancing weight, and relates to the technical field of washing machine balancing weights. The discharging machine comprises a machining frame, a telescopic rod is fixedly installed on the inner top face of the machining frame, one end of the telescopic rod is fixedly connected with a discharging machine body, a supporting table is fixedly installed on the inner bottom face of the machining frame, a mold body is movably installed at the top end of the supporting table, and a U-shaped plate is movably installed below the supporting table. The double-thread screw is rotated through the motor, the double-thread screw rotates to drive the clamping plates to move oppositely, the clamping plates move oppositely to clamp and fix the die body, meanwhile, the sliding blocks are matched with the clamping plates to slide in the sliding grooves to limit the clamping plates, the fixed die body is aligned with the discharging machine body, then the telescopic rod is driven to push the discharging machine body, and the discharging machine body is driven to discharge the die body. And the discharging machine body makes contact with the mold body and then conducts feeding, so that clamping and fixing of the mold body and convenient feeding are achieved, the feeding stability of the mold body is improved, waste of raw materials is reduced, and economical efficiency is improved.

The utility model discloses an ultrahigh concrete outer gutter formwork structure which comprises a scaffold body arranged on the outer side of a building, a triangular support body capable of being movably and detachably installed is arranged on the outer side of the scaffold body, the movable side of the triangular support body is connected with a first longitudinal beam rod, and the first longitudinal beam rod vertically extends; a supporting bracket is arranged on the first longitudinal beam rod and the scaffold body and used for bearing square timber at the bottom of the bottom formwork. The supporting bracket has the beneficial effects that square timbers at the bottom of a bottom formwork in a gutter and a roof beam can be supported through the supporting bracket, erecting of the formwork is achieved, after the formwork is fixed, the concrete gutter and the roof beam can be poured at the same time, the forming quality of concrete is improved, the integrality of one-time pouring forming is good, and the hidden danger of leakage is reduced; as the gutter is far away from the roof beam, auxiliary supporting can be achieved through the triangular support body, bearing capacity is high, and safety and reliability are achieved.

A profiling device for brewing yeast blocks comprises a profiling part, a yeast treading part and conveyor belts, yeast materials are pressed into the yeast blocks in preset shapes by the profiling part, the yeast treading part is used for uniformly mixing the yeast materials, and the conveyor belts comprise a feeding conveyor belt, a profiling conveyor belt and a discharging conveyor belt and are used for conveying the yeast materials or the yeast blocks; the profiling part is provided with a rigid and flat profiling platform, a profiling oil cylinder is arranged on the upper portion of the profiling platform, the profiling face of the upper die is an arc-shaped profiling face or a wavy profiling face, a koji material is pressed and formed after being loaded on the lower die, and the profiling device is suitable for automatic operation, rapid in profiling and good in profile consistency. As the yeast material is firstly treaded by the yeast treading part, internal tissues are fully homogenized, and then the yeast material enters the profiling part to be profiled into yeast blocks, the profiling quality is good, the internal distribution of the yeast material is uniform, and the later-stage bacterium cultivation of bacterial colonies is ideal.

The utility model discloses a complex deep cavity 5G emitter lower shell die-casting die which comprises a fixed die mechanism, a movable die mechanism and an exhaust assembly, the fixed die mechanism comprises a fixed die frame, a fixed die core and a charging barrel, the fixed die core is provided with a fixed die cavity, and the side of the fixed die cavity is provided with a plurality of first slag ladle cavities and a first slag discharging channel sequentially communicated with the first slag ladle cavities; the movable mold mechanism comprises a movable mold frame, a movable mold core and a sprue spreader, the movable mold core is provided with a movable mold cavity, a cavity used for forming the lower shell is formed between the movable mold cavity and the fixed mold cavity, the sprue spreader is provided with a feeding channel, the feeding channel communicates with the charging barrel, and a plurality of second cinder ladle cavities and second cinder discharging channels sequentially communicating with the second cinder ladle cavities are formed in the side of the movable mold cavity; the exhaust assembly comprises a first exhaust block and a second exhaust block, and an exhaust gap is formed between the first exhaust block and the second exhaust block. According to the die-casting die for the lower shell of the complex deep-cavity 5G emitter, the forming quality of the two sides of the lower shell can be improved, and the die-casting rejection rate is reduced.

The invention discloses a low-disturbance cutting control method and system for a heading machine, and the method comprises the steps: generating a roadway section contour through the type and size information of a pre-cut roadway, setting a roadway boundary target point, planning a cutting path of the heading machine, and carrying out the setting of a parameter theoretical value through the real-time detection of working parameter information. And comparing the parameter signal with a theoretical set value, judging the position of the cutting head in a roadway, selecting an optimal cutting motion parameter, controlling the rotating speed of the tunneling cutting head and the motion of a cutting arm in real time, and realizing low-disturbance cutting. The position information of the cutting head in the cutting process can be accurately judged in real time, cutting operation parameters are optimized, high-speed low-disturbance cutting at the edge position of a roadway or at the position where obstacles exist is achieved, the situation that the heading machine cuts a top plate and meanwhile reduces the swing speed of the cutting arm when cutting hard rock is effectively avoided, vibration of the cutting head and a machine body is reduced, and the cutting efficiency of the heading machine is improved. Abrasion and damage of cutting teeth of the cutting head are reduced, roadway section forming quality is improved, and surface flatness of a top plate and a bottom plate is guaranteed.

The invention relates to the technical field of rare earth processing, in particular to automatic feeding equipment for rare earth permanent magnet processing. The invention provides automatic feeding equipment for rare earth permanent magnet machining, and the automatic feeding equipment is mechanically automatic. Automatic feeding equipment for rare earth permanent magnet machining comprises an outer frame, a closed bin, a hopper and a movable seat, the closed bin is fixedly connected to one end of the outer frame, the inverted-cone-shaped hopper is arranged at the top of the closed bin, the middle of the outer frame is hollowed out, and the movable seat is arranged in the outer frame in a sliding mode and can slide into the closed bin. A worker places a mold on a pressing block and presses the mold downwards, a rack drives a transmission gear to rotate, then a lead screw is driven to rotate through a transmission shaft and a speed increasing belt wheel set, a clamping block can clamp and fix the side face of the mold, then a driving machine drives a moving base to a hopper for material receiving, and a knocking block is continuously pushed through a crankshaft; the knocking block knocks the moving seat to form vibration, so that the rare earth powder in the mold is quickly formed.