180results about How to "Improve production stability" patented technology

The present invention relates to the field of die-casting optimization technology, and discloses a die-casting process parameter optimization method and system based on digital twin. The method includes: arranging sensors to collect die-casting equipment operation parameters and die-casting part quality data in real time to form multi-source die-casting production data. According to the multi-source die-casting production data, establish a multi-physics field simulation model and construct a digital twin model. Compare the virtual prediction results with the measured quality data, and construct a virtual-real difference compensation network to correct the parameters of the digital twin model. Based on the compensated digital twin model, perform a multi-objective reinforcement learning method to generate the optimal die-casting process parameters. Apply the optimal die-casting process parameters to the die-casting equipment for verification, and update the virtual-real difference compensation network according to the verification results. This application realizes the intelligent optimization and continuous self-evolution of die-casting process parameters, and improves the casting forming accuracy, energy efficiency utilization rate and production stability.

This invention discloses a method for preparing a novel ultra-high voltage high-performance composite insulating material, belonging to the field of composite insulating material preparation technology. The technical solution includes the following steps: S1, preparing a modified epoxy-silicone rubber composite resin matrix: 40-50 parts by weight of bisphenol A type epoxy resin (E-51) are placed in a reaction vessel, heated to 60-70℃, and continuously stirred at a stirring rate of 300-500 r / min. 10-15 parts by weight of terminal hydroxyl polysiloxane (molecular weight 5000-10000) are added, and the temperature is kept constant for 1.5-2 hours; subsequently, the system temperature is lowered to 40-50℃. The beneficial effects of this invention are: by setting up a resin matrix system of "terminated hydroxyl polysiloxane modified epoxy resin + nano-alumina / boron nitride composite reinforcement," the problem of imbalance between high voltage resistance and aging resistance in existing materials is solved. It exhibits significantly improved dielectric strength, greatly reduced dielectric loss, and excellent high and low temperature cycling performance, meeting the long-life operation requirements of ultra-high voltage equipment.

The utility model discloses a quartz tube opening device for indium phosphide production relates to indium phosphide production technical field, including work box and pipe body, a plurality of fixed seats are fixedly arranged in the work box, the pipe body is placed on the fixed seat, the top of pipe body is provided with the support, the support is fixedly arranged in the work box, the movable block is slidably connected on the support, the bottom of movable block is installed with the drive motor, the drive end fixed connection of drive motor has the cutting knife, the top fixed mounting of support has the rack, the top rotary connection of movable block has the gear, the bottom of gear is engaged connection with rack, the utility model discloses through drive motor drive cutting knife rotation, servo motor drive gear moves along the rack, has realized the automatic circumference cutting of quartz tube, does not need manual knock to break, operation is more simple and convenient.

This invention relates to the field of refractory brick manufacturing technology, solving the problem of poor coordination between various process equipment units in refractory brick production lines. Specifically, it discloses an automated production line and process for refractory brick production, including a crushing unit, a feeding unit, a weighing unit, a mixing unit, a spreading unit, a pressing unit, a detection unit, a stacking unit, and a firing unit connected by control system signals. The discharge end of the crushing unit is connected to the feed end of the feeding unit; the discharge end of the feeding unit is connected to the feed end of the weighing unit; the discharge end of the weighing unit is connected to the feed end of the mixing unit; the discharge end of the mixing unit is connected to the feed end of the spreading unit; the discharge end of the spreading unit is correspondingly arranged with the feed end of the pressing unit; the discharge end of the pressing unit is connected to the feed end of the detection unit; and the discharge end of the detection unit is connected to the feed end of the stacking unit. This invention is used for refractory brick production and features a high degree of automation and strong equipment coordination.

This utility model relates to the technical field of headphone processing equipment and relates to a nozzle liquid silicone mold structure. It includes a mold component comprising an upper mold and a lower mold, detachably connected by a movable insert. The movable insert has multiple assembly parts. The bottom of the upper mold has multiple first fixed cavities, each with a first cavity at its front end. The top of the lower mold has multiple second fixed cavities, each with a recessed second cavity at its front end. By providing multiple assembly parts on the movable insert for assembling nozzles, multiple nozzles can be simultaneously molded in a single injection molding process, reducing the number of mold opening and closing operations, loading and unloading, and shortening the production cycle, thus significantly improving production efficiency. Furthermore, since multiple nozzles are positioned and placed as a whole through the movable insert, the difficulty and error of operations inside the mold are reduced, improving the mold's service life and production stability.

The invention discloses an intelligent empty can detection device for a ring-pull can production line and a detection method of the intelligent empty can detection device. An input station, a tank opening detection station, a tank body inner wall detection station, a tank body inner bottom detection station, a tank body outer wall multi-detection station, a tank body bottom outer side multi-detection station and an output station are sequentially arranged on the circumference of the tank body, a positioning assembly capable of being matched with tank bodies with different diameters is arranged, and the input station is provided with a height and diameter detection sensor; a digital twinborn system is innovatively introduced, a'physical detection device-virtual twinborn model 'real-time mapping system is constructed, and detection full-process visualization, data full-link tracing and virtual simulation optimization are achieved. According to the invention, all-directional defect detection of the zip-top can is realized, the dynamic optimization capability of detection parameters, the equipment fault pre-judgment efficiency and the production collaboration level are improved through the digital twin technology, the method is adaptive to cans of different specifications, the detection precision and generalization are remarkably improved, and the method is suitable for a high-standard zip-top can production line.

The utility model provides a flow dividing device for an oil stain cleaning agent filling line, which belongs to the technical field of conveying and flow dividing and comprises a main conveyor, two flow dividing conveyors, a flow guiding block, two flow guiding plates and a direction changing mechanism. The two flow dividing conveyors are located on the two sides of the main conveyor, limiting plates are arranged on the two sides of the main conveyor, and flow dividing openings are formed in the limiting plates. The flow guide block is installed above the main conveyor and located between the two flow dividing openings. The flow guide block is provided with two inclined faces. The two flow guide plates are installed above the two flow dividing conveyors, and one ends of the flow guide plates are connected with the side walls of the corresponding flow dividing openings. The two flow guide plates are arranged in an inclined mode and are parallel to the two inclined planes at intervals, and flow dividing channels are formed between the flow guide plates and the corresponding inclined planes; and the turning mechanisms are alternately arranged between the two shunting channels. According to the oil stain cleaning agent filling line flow dividing device, the toppling probability caused by center-of-gravity shift in the steering process of a bottle is reduced, and the occupied space is small.

The utility model relates to the technical field of insulator production, in particular to a synchronous mold opening device for insulator molding, which comprises an upper mold and a lower mold, a molding cavity is arranged between the upper mold and the lower mold, and a material injection port is arranged on the upper mold; the forming mold is composed of a mold base and sliding mold cores, a pair of sliding mold cores are arranged on the mold base in a sliding opening and closing mode, the opening and closing process of the forming mold is completed through opening and closing of the sliding mold cores, and a mounting cavity used for containing an insulator mold blank is formed between the mold base and the pair of sliding mold cores; the lower mold is provided with two mold feeding guide rails, the forming mold is slidably placed on the inner sides of the two mold feeding guide rails, and opening and closing assemblies are arranged at the ends, away from the lower mold, of the two mold feeding guide rails and located on the outer side of the forming mold. According to the utility model, the two sliding mold cores on the forming mold can be automatically and synchronously opened and closed through the opening and closing assembly, and the high consistency and reliability in the opening and closing process of the mold can be effectively ensured, so that the forming precision and the product quality of an insulator are remarkably improved.

The invention relates to a graphite boat and a preparation method thereof, and a deposition method of a battery piece pre-finished product. The graphite boat comprises a saturated graphite boat, a first silicon nitride film, a silicon oxynitride film and a silicon oxide film, the first silicon nitride film, the silicon oxynitride film and the silicon oxide film are sequentially stacked on the surface of the saturated graphite boat, the porosity of the first silicon nitride film is 27%-33%, and the ratio of the total thickness of the first silicon nitride film and the silicon oxide film to the thickness of the silicon oxynitride film is 2.5: 1-3.5: 1. And the refractive index of the silicon oxide film is 1.45-1.50. According to the graphite boat, the problem of edge black at the air inlet position of the solar cell when a new graphite boat is on line can be prevented, and the yield and the production stability are remarkably improved.

The utility model discloses a mold beneficial to product lamination, which relates to the technical field of molds and comprises a main body module and a UV (ultraviolet) glue conveying device positioned on one side of the main body module, the main body module comprises a base and a cabinet body connected to the end face of the base, a workbench is arranged between the base and the cabinet body, a positioning assembly is arranged on the end face of the workbench, and the positioning assembly is used for positioning an assembly with a first component and a second component; a fixing plate is further installed on the end face of the workbench through a guide column, a UV light source is installed at the bottom of the fixing plate, and the UV light source is located over the positioning assembly. The UV glue conveying device comprises a glue storage tank and a conveying pipeline, one end of the conveying pipeline is connected with the glue storage tank, and the other end of the conveying pipeline extends into the cabinet body and corresponds to the assembly body on the positioning assembly; according to the utility model, positioning, glue injection and curing processes are integrated through the integral integrated design, so that the production cycle is shortened, and the production efficiency and the stability are remarkably improved.

The utility model relates to the technical field of coating die precision control, specifically relates to an actuating mechanism and coating machine. An actuating mechanism, include: integrated seat body, displacement piece, be located integrated seat body one side, displacement sensor, displacement sensor be located integrated seat body, displacement sensor is equipped with elastic probe, elastic probe with displacement piece is connected, elastic probe with displacement piece same side setting, displacement piece is driven ground to move towards or away from integrated seat body, displacement probe follows displacement piece movement, displacement sensor senses displacement piece's movement distance. The utility model provides an actuating mechanism and coating machine to solve in traditional actuating mechanism, multiple installation error's superposition leads to the overall assembly error of screw rod and displacement sensor between big, influence the whole mechanism's assembly precision problem.

The utility model discloses a kind of citric acid fermentation fine filter devices, belong to citric acid production technical field.Device is composed of fermentation unit and fine filter unit: fermentation unit contains seed tank and fermentation tank, the feed inlet of seed tank is connected with syrup turbid liquid pipe, the feed inlet of fermentation tank is connected with syrup clear liquid pipe and syrup turbid liquid pipe, seed tank and fermentation tank are configured with steam, compressed air, defoaming agent, emptying and circulating water pipeline.Fine filter unit first removes most solid impurities with primary plate-and-frame filtration, then ceramic membrane fine filtration and anion and cation exchange impurity removal.Two-stage filter-pressing acid residue is dried after being thickened and then filter-pressing to be feed, and two-stage filtrate respectively enters subsequent process.The device can greatly reduce labor cost and failure rate, improve citric acid purity and yield, and meet the needs of large-scale, high-quality and green production.

This application provides a control method for a cold rolling mill, comprising: switching each stand to a rolling force control mode and controlling each stand to fully open its roll gap; for the first stand, adjusting the first roll gap of the first stand according to the corresponding first rolling force, controlling the cold rolling mill to start, and stopping when the first deformation zone of the first stand reaches the exit of the cold rolling mill; for the (n-1)th stand, adjusting the (n-1)th roll gap of the (n-1)th stand according to the corresponding (n-1)th rolling force, controlling the cold rolling mill to start, and stopping when the first deformation zone of the first stand reaches the exit of the (n-1)th stand; for the nth stand, adjusting the nth roll gap of the nth stand according to the corresponding nth rolling force, controlling the cold rolling mill to start, and controlling the cold rolling mill to perform stable rolling when the first deformation zone of the first stand reaches the coiling device. The technical solution of this application embodiment can ensure a smooth and stable start-up of the cold rolling mill.

The invention belongs to the field of microbial engineering, and provides a gentamicin C1a high-yield biological manufacturing method based on metabolic network modeling and reverse metabolic engineering renovation, which comprises the following steps: S1, constructing a genome scale metabolic model of a target production strain, predicting and screening a first target gene in positive correlation with gentamicin biosynthesis by using the model; s2, performing whole genome sequencing on the gentamicin high-yield mutant strain, and identifying a second target gene related to the high-yield character through comparative genomics analysis; s3, combining the first target gene predicted in the step S1 and the second target gene identified in the step S2, and constructing to obtain a recombinant engineering strain; s4, carrying out fermentation culture on the recombinant engineering strain, and supplementing materials in the fermentation process; by remarkably improving the production efficiency and strain performance of gentamicin C1a, important technical support and theoretical basis are provided for green biological manufacturing of antibiotics.

The utility model relates to the technical field of vaccine bottle drying devices, in particular to a multi-station cooperative type vaccine bottle surface quick drying device which comprises a rack, a stock bin and a sorting bin, a vibration mechanism is further arranged on the rack, and the stock bin and the sorting bin are located above the vibration mechanism. A discharging channel extending outwards is arranged on the side, close to the feeding end of the sequencing bin, of the stock bin, and a plurality of flow guide grooves are formed in a bottom plate of the sequencing bin. A blow-drying machine is further arranged above the stock bin, an air outlet of the blow-drying machine faces the stock bin, and air flows from the stock bin to the sorting bin through the discharging channel. According to the utility model, the blow-drying machine blows a large area of air above the stock bin, so that a plurality of vaccine bottles are primarily blown; under the action of continuous vibration and stirring of the vaccine bottles, air can make contact with all faces of the vaccine bottles, and the air enters the sorting bin under the guidance of the discharging channel to conduct secondary blowing on the vaccine bottles arranged in the flow guide groove in order; no extra workload needs to be added in the whole process, and the production efficiency is greatly improved.

This invention discloses a method for preparing an ultralightweight, highly abrasion-resistant TPU / textile composite material for bags and luggage, comprising the following steps: weaving a mesh base fabric using a warp knitting machine; activating and pretreating the surface of a TPU film; coating an adhesive onto the activated surface of the TPU film obtained in the previous step and drying it; hot-pressing the mesh base fabric and the TPU film at multiple points to obtain the TPU / textile composite material; and finishing and shaping the TPU / textile composite material obtained in the previous step. The advantages of this invention include: the prepared composite material possesses multiple advantages such as ultralight weight, high abrasion resistance, softness, strong interface, breathability, and environmental friendliness. It can be widely used in the fabric preparation of various bag and luggage products such as high-end trolley cases, backpacks, outdoor bags, and briefcases, and can also be extended to outdoor products, protective equipment, and other fields, possessing significant industrial application value and market prospects.

The application discloses a motion control method for preventing glue stacking of a glue dispenser, and relates to the technical field of intelligent control.The method comprises the following steps: constructing a non-Newtonian fluid dynamic model through a power law equation, and generating a four-dimensional compensation coefficient matrix; predicting glue amount deviation through a convolutional neural network, calculating compensation glue amount based on linkage of a piezoelectric valve and a screw valve, obtaining a control instruction set; constructing a Jacobian matrix to calculate an end equivalent inertia force, and injecting a reverse compensation current through a servo driver to synchronously optimize a multi-axis motion trajectory, and re-planning a path through a curvature radius constraint at an inflection point; detecting glue line height through laser height measurement, triggering an online learning algorithm to update convolutional neural network weights, switching process parameter files, and controlling synchronization of a conveying belt beat and a glue dispensing gap time; monitoring glue line height, executing an abnormal glue stacking classification processing strategy, and recording fault data packets.The application realizes glue stacking prevention of the glue dispenser through lightweight convolutional neural network prediction and multi-axis motion trajectory optimization.

This invention belongs to the field of engineered wood products manufacturing, specifically a method for preparing low-formaldehyde finger-jointed boards based on bio-based modified adhesives. The method includes preparing an adhesive composed of modified soybean protein, non-formaldehyde crosslinking agents, micro / nano cellulose, nano-silica, and epoxidized vegetable oil elastomers; pre-treating the wood and cutting the finger joints; applying a sealing liquid via atomization for end-face damping treatment; performing quantitative adhesive application and stepped butt joint molding; and employing a multi-stage hot-pressing process involving preheating penetration, high-temperature curing, and cooling and pressure holding. Through the above technical solution, this application can achieve the formation of a dense adhesive film at the finger joint interface, significantly improving bonding strength and stability while reducing formaldehyde release.

This invention discloses a real-time monitoring system and method for automotive parts production data, belonging to the field of industrial intelligent monitoring technology. The method includes mapping a coupled dataset of parts production to a quantum state space to obtain a compressed quantum feature vector; applying an environmental compensation factor to dynamically adjust the compressed quantum feature vector using a rotating door mechanism, outputting an environmentally adaptive quantum feature vector; inputting the environmentally adaptive quantum feature vector into a risk causal inference model; performing quantum state probability transformation calculations in a quantum probability calculation layer; and quantifying feature interactions and causal effects in a causal inference layer, outputting a heatmap of parts perforation offset. This invention effectively processes and fuses data from different sources by mapping the coupled dataset of parts production to a quantum state space and using a quantum variational encoder for quantum amplitude compression. Simultaneously, it utilizes a risk causal inference model to deeply analyze and quantify the root causes of quality problems during the production process.

The application discloses a method for assisting strip threading of a coiler pinch roll of a hot-rolled strip steel production line, and belongs to the field of steel production. The control mode of the pinch roll comprises a pressure control mode, a speed control mode and a position control mode. In the position control mode, the lower pinch roll is horizontally moved to a position perpendicular to the center of the upper pinch roll when the strip head is threading, and the upper pinch roll is pressed down to a set roll gap position G1. The application adjusts the position, speed and pressure control of the coiler pinch roll, so that the pinch roll provides the function of assisting the strip head in threading, thereby reducing the strip head from being wrapped, improving the production stability of thin specifications, and increasing the economic benefits of the hot-rolled strip steel production line.

The invention relates to the technical field of lower punch manufacturing, and discloses a plasma cladding-based magnetic shoe die punch manufacturing device which comprises a workbench, two stand columns are mounted on the workbench, a multi-axis moving mechanism is mounted between the two stand columns, and a plasma gun is mounted at the driving end of the multi-axis moving mechanism; the side face of the plasma gun is provided with a circuit interface, and the two sides of the plasma gun are provided with feeding pipes. According to the magnetic shoe die punch manufacturing technology based on plasma cladding, the multi-axis rotating mechanism drives the clamped punch to rotate at multiple angles, the complex curved surface of the head of the punch can be always adjusted to the optimal surfacing position through cooperative control, in the process, an anode nozzle of a plasma gun can be always kept perpendicular and aligned to the surface to be clad, and the surface to be clad is effectively protected. After being instantly melted by the plasma arc, the powder is deposited on the preheated punch base body, so that a compact metallurgical bonding layer is formed, and the hidden danger of a hollowing area in a traditional process is thoroughly eliminated.

The invention relates to the technical field of bolt production, and particularly discloses a high-strength bolt machining process and device. Comprising the following steps: S1, material selection: selecting an alloy steel blank containing C, Si, Mn, Cr, Mo, V and the balance of Fe; s2, cold heading forming is conducted, specifically, the alloy steel blank is placed in a multi-station cold heading machine, and a bolt blank is formed through continuous cold heading and forging; s3, heat treatment is conducted, specifically, the bolt blank is subjected to quenching treatment and then subjected to tempering treatment, and a bolt base body is obtained; and S4, surface treatment is conducted, specifically, phosphating treatment is conducted on the surface of the bolt base body in sequence to form a phosphating layer, the composite coating is coated, and the high-strength bolt is obtained. The high-strength bolt machining process can be used for manufacturing connecting components requiring high reliability under complex working conditions such as heavy load, vibration and impact, and the high-strength bolt machining process has the advantages that the toughness, fatigue resistance and delayed fracture resistance are improved while high strength is kept.

This utility model belongs to the technical field of automotive electrochromic lenses, specifically disclosing an automotive anti-glare rearview lens with an improved conductive structure. It includes a front glass substrate, a rear glass substrate, a front transparent conductive layer and a rear mirror conductive layer respectively disposed on their inner sides, and an electrochromic layer structure sandwiched between them. Grooves are provided on the mating surfaces of the front and rear glass substrates for embedding a conductive structure composed of conductive silver paste, which is connected to the conductive layer. It has the following advantages: it achieves an embedded low-resistance conductive path, effectively improves the uniformity of electrochromic coating, enhances the bonding force between the conductive structure and the glass, avoids the problem of easy detachment of traditional screen-printed conductive layers, improves lens reliability and assembly yield, and is suitable for the structural compatibility requirements of frameless rearview mirror designs.

This invention relates to the field of metal continuous casting equipment testing technology, and particularly to an online detection method for carbon layer thickness of casting wheels and an adaptive online grinding system. The method includes: using partitioned detection units corresponding one-to-one with each region of the casting wheel cavity to collect original detection data of the carbon layer in each region of the casting wheel cavity; collecting the rotational position data of the casting wheel spindle; hard-synchronizing and binding the original carbon layer detection data with the rotational position data to obtain carbon layer detection data with spatial coordinates at each point in the casting wheel cavity; and fusing the carbon layer detection data with spatial coordinates to output the effective working layer thickness data of the carbon layer at each point in the casting wheel cavity. This invention effectively solves the problems of existing technologies being unable to accurately obtain the true effective working layer thickness of the carbon layer with spatial coordinates at each point in the casting wheel cavity, and the difficulty in supporting precise recoating control of the carbon layer in casting wheels. It achieves precise control of the carbon layer thickness, improving production stability and billet forming quality.

This application discloses a control method, equipment, and storage medium for a two-plate die-casting machine, including: setting a target speed and target pressure for the hammer's follow-out motion; after the injection action is completed, driving the hammer with the target speed and target pressure, while simultaneously limiting the return oil flow of the mold-opening cylinder, so that the hammer pushes the mold plate to perform a mold-opening action; during the process of the hammer pushing the mold plate, controlling the return oil pressure of the mold-opening cylinder by adjusting the opening degree of the pressure relief valve; when the mold plate is detected to have moved to a preset follow-out position, stopping the follow-out driving of the hammer, and completing the subsequent mold-opening action at a preset mold-opening speed until the mold opening is completed. This application achieves the technical effect of improving production safety and stability by simultaneously setting and controlling the target pressure and speed of the hammer's follow-out motion, so that the mold-opening speed is controlled by the hammer's push during the follow-out stage.

This utility model discloses a helical spring receiving rack, relating to the field of spring manufacturing technology. The helical spring receiving rack includes a frame with a constraint space. The constraint space has an inlet on the side near the discharge end and an outlet on the side away from the discharge end. Helical springs extending from the discharge end of the spring machine enter the constraint space through the inlet. The constraint space constrains and restricts the helical springs extending from the discharge end and completed winding, thus preventing the helical springs away from the discharge end from swaying excessively due to the rotational force of the spring machine's rotating mechanism when rotating synchronously with it, which could lead to deformation. The constraint space not only restricts the swaying of the helical springs but also supports them, preventing sagging or deformation due to their own weight. This significantly improves the production quality and stability of the helical springs.

This utility model relates to the field of cotton yarn production technology and discloses an anti-clogging feeding device for a cotton yarn production machine, including a lifting support and an anti-clogging feeding mechanism. The lifting support is driven by a servo screw linear module to lift and lower the vacuum suction tube and the take-up mask. The anti-clogging feeding mechanism includes a feeding box, a feeding rod, an anti-clogging rod, and a driving device. The feeding rod and the anti-clogging rod are rotatably mounted inside the feeding box, and the driving device is used to drive the feeding rod and the anti-clogging rod to rotate. The feeding box is connected to the take-up mask and is used to store the cotton to be fed. The feeding rod is used to push the cotton below the feeding box into the feeding box. The anti-clogging rod is used to prevent the cotton from clogging the take-up mask and the vacuum suction tube during the feeding process. The feeding rod and the anti-clogging rod are designed with oppositely rotating feeding rods and pear-shaped blades to effectively prevent cotton clogging and distribute it evenly. This effectively solves the clogging problem in the cotton feeding process, improves feeding accuracy and efficiency, and reduces energy consumption and maintenance costs.

The utility model relates to stamping die technical field, concretely relates to air conditioner front cover plate stamping die with guide angle forming function, including lower die plate and upper die plate, the upper surface of lower die plate installs the guide angle female die, is provided with the forming chamber in the guide angle female die, is provided with the lower recess on the bottom wall of forming chamber, the bottom wall central position department of lower recess is provided with the cylindrical hole of the lower die plate, the lower die plate below is provided with first air cylinder, the telescopic axle end of first air cylinder detachably installs the ejection plate, and the ejection plate is slidably connected between the lower recess, the bottom of upper die plate installs the guide angle male die, the bottom surface central position department of guide angle male die is provided with annular groove, the top wall central position department of annular groove is provided with the inner slide of the upper die plate, the top of upper die plate is fixedly installed with third air cylinder, and the telescopic axle end of third air cylinder detachably installs the ejection disc. The utility model makes the blank finish guide angle processing in one stamping, shortens production cycle, and is convenient to use.

The invention provides a method and system for regenerating fibers from waste textiles, and relates to the technical field of textile equipment. The method comprises the following steps: firstly, slitting a waste textile raw material through a vertical crossing slitting unit to obtain a cloth piece with a preset size; then, auxiliary agent spraying and steam ageing treatment are carried out on the cloth pieces, so that cohesive force between fibers is reduced; then carrying out flexible pretreatment, gradually loosening a warp and weft yarn structure through a needling device, and carrying out preliminary opening; then, through the multi-stage opening and impurity removal step, the materials are converted into a single fiber state in combination with a material distribution mechanism; the fibers are atomized and humidified in the conveying or storage process so as to maintain the water content and the strength; then fully carding through a carding and fiber separating machine, and separating the single fibers into at least three types of long fibers, medium and short fibers and ultra-short fiber components according to the difference between the fiber length and aerodynamic characteristics; and finally, respectively collecting and packaging the fibers with different length components. According to the invention, high-valued cyclic utilization of the waste textiles is realized.

This invention discloses a magnesium alloy vehicle frame die-casting molding apparatus, belonging to the technical field of die-casting equipment. It includes a machine base, on which a base platform and a fixed mold are fixedly mounted. An injection chamber is fixedly mounted on the base platform, and a cavity is formed on the fixed mold. The advantages are: This apparatus addresses the problem that traditional venting channels only reach the edge of the cavity, are difficult to access deep cavities, and are located in corners. Through a linkage design between the external venting needle and the guide tube, the external venting needle can penetrate deep into the corners and move dynamically with the injection action, venting residual gas in the corners and avoiding defects such as porosity and shrinkage, thus ensuring the strength of the vehicle frame. Simultaneously, addressing the problem of low venting efficiency and easy backflow clogging with fixed-diameter venting, the eccentric fine hole of the internal venting needle rotates synchronously with the injection, changing its diameter. This allows for large-scale venting in the initial stage and prevention of clogging in the later stage, eliminating the need for frequent machine shutdowns for cleaning. Mechanical transmission allows the venting position and diameter to adapt to changes in cavity pressure and gas volume in real time, matching the filling rhythm and significantly improving die-casting quality and production stability.