69 results about "Mold testing" patented technology

The invention discloses an intelligent injection molding product quality prediction method, which comprises the steps of collecting product structure information, mold parameters and injection molding equipment operation parameters, and constructing a scientific mold testing process window based on simulation analysis; designing an orthogonal experiment scheme to generate a simulation data set, and forming a multi-source data training sample in combination with field test model data; training a quality prediction model by using a distributed gradient boosting tree model, inputting process parameters, and outputting quality indexes such as product gram weight, volume shrinkage and buckling deformation; the model interpretability is realized through a shop value analysis method, and the influence weight of the process parameters on the quality indexes is evaluated; the model is deployed in a production control system or a cloud platform, the product quality is predicted in real time, a dynamic feedback mechanism is established, and when the error between actual detection data and a predicted value exceeds a threshold value, model retraining and parameter correction are automatically triggered to form closed-loop control. The method effectively improves the accuracy, transparency and engineering adaptability of quality prediction of the injection molding product, and can be popularized.

The invention is suitable for the field of flexible printed circuit board testing, and provides a needle mold testing device and method suitable for multiple processes and multiple stations. The needle mold testing device suitable for multiple processes and multiple stations comprises a carrier which is arranged on an assembly line and is used for placing a flexible circuit board in a bending state; the lower test module is arranged below the carrier and comprises a lateral positioning assembly, a first lateral needle mold assembly and a jacking assembly; the lateral positioning assembly and the first lateral needle mold assembly are arranged at the top of the jacking assembly; the upper testing module is arranged above the carrier and comprises a first pressing block testing assembly, a second lateral needle mold assembly and a first ceiling assembly, and the first pressing block testing assembly and the second lateral needle mold assembly are arranged at the bottom of the first ceiling assembly. The device and the method can greatly reduce the equipment cost, improve the equipment stability and reduce the investment and the cost of maintenance personnel.

The invention belongs to the field of concrete test block preparation, and particularly relates to a concrete anti-permeability test mold which comprises a bottom cover, a mold cylinder, at least two scrapers and guide pieces in one-to-one correspondence with the scrapers. The bottom cover comprises a bottom plate matched with the mold cylinder in an inserted mode and a plurality of handrail outer pipes, and a plurality of connecting pieces are arranged on the mold cylinder. The scraping plate comprises arc plate bodies and a sliding sleeve coaxial with the handrail outer pipe, the arc plate bodies can define an outer circle not smaller than a barrel opening of the mold barrel, and the sliding sleeve can rotate and slide up and down in the handrail outer pipe; the handrail outer pipes and the connecting pieces are in guiding sliding fit in the vertical direction, pushing pieces are arranged between the handrail outer pipes and the corresponding connecting pieces, and telescopic parts capable of stretching out and drawing back in the vertical direction are arranged on the pushing pieces; the guide piece and the sliding sleeve are in rotation stopping fit and are slidably assembled in the vertical direction. The mold testing device can solve the technical problem that a test block is easily damaged in the demolding process of an existing mold testing device.

The present invention discloses an injection mold pressure testing device, which relates to the technical field of mold pressure detection. It includes a base, on the top of the base is fixedly installed a workbench, and on the top of the workbench is fixedly installed a fixing frame. And on the top of the fixing frame is fixedly installed a hydraulic push rod. At the same time, the movable end of the hydraulic push rod passes through the fixing frame and is fixedly installed with a movable plate. Moreover, on both sides of the top of the movable plate are symmetrically installed guide rods, and both guide rods are slidably connected to the fixing frame. It also includes: two groups of pressure sensors, fixedly installed at the bottom of the movable plate; so that when testing a larger mold, the contact area with the mold can be enlarged, avoiding uneven pressure caused by the contact area, avoiding affecting the accuracy of the injection mold test, and can be used for blow molding molds of different sizes, improving the applicability. And when performing pressure testing on a larger mold, excessive pressure can be avoided, preventing unnecessary damage and wear to the mold.

The invention provides a stamping process diagram optimization design method and system based on Autoform simulation. The stamping process diagram optimization design method comprises the steps of data input and preprocessing; preliminarily generating a process diagram; carrying out Autoform simulation analysis; automatically optimizing parameters; dynamic process diagram output and knowledge base integration are carried out, defects such as wrinkling and cracking are warned in advance through Autoform multi-physical field simulation, the mold testing frequency is reduced by more than or equal to 50%, and the mold testing cost is greatly reduced; the blank holder force and the draw bead resistance coefficient are automatically adjusted through algorithms such as a gradient descent method, the blank holder force precision is improved to be within + / -5%, and manual experience dependence is reduced; through simulation-design closed-loop iteration, the mold debugging period is shortened to 1-2 weeks from traditional 4-5 weeks, and the design efficiency is improved; simulation data are directly embedded into the dynamic process diagram, version control and difference comparison are supported, and design traceability is ensured; a knowledge graph is constructed through historical simulation data, initial parameters of similar workpieces are recommended through machine learning, the repeated simulation workload is reduced by more than or equal to 30%, and the design reusability is improved.

The utility model belongs to the technical field of injection molding machine detection, particularly relates to injection molding machine mold internal detection equipment, and provides the following scheme aiming at the problems that the existing equipment is horizontally placed through a supporting rod, but the bottom of an injection molding machine mold is mostly mutually connected parts, so that the placement is unstable, and the injection molding machine mold is inclined and shaken. A clamping part is arranged on one side of the equipment box, a control part is arranged at one end of the clamping part and located in the equipment box, a detection part is installed in the equipment box, cleaning parts are arranged at the two ends of the detection part, and the clamping part comprises a clamping sliding groove formed in one side of the equipment box. According to the utility model, the rotating handle is rotated to control the driving bevel gear to be meshed with the two driven bevel gears, so that the two screw rods are driven to rotate synchronously, and the two clamping plates can move away from or close to each other along the clamping chutes, so as to synchronously clamp or separate from the die orifice of the injection molding machine and facilitate the stable implementation of subsequent detection behaviors.

The invention provides an initial process parameter determination method and device, electronic equipment and a storage medium, and belongs to the technical field of intelligent manufacturing, and the method comprises the steps that all target forming initial process parameters are determined; establishing a parameterized template according to the generation rule of each target molding initial process parameter; according to the injection molding process of the target injection molding product, the parameterized templates of the target molding initial process parameters are used for constructing a molding initial process parameter template set; and determining all the initial molding process parameter values of each injection section number of the target injection molding product in each injection molding stage by utilizing the initial molding process parameter template set. According to the method, the parameterized template and the template set are constructed through the generation rule of the initial process parameters and the injection molding process, the initial process parameter value of the injection molding product in each injection molding stage is systematically generated, and the accuracy of setting the initial process parameters of molding can be improved, so that the mold testing efficiency is improved, the time and material cost is reduced, and the production efficiency is improved. And the parameter setting consistency is ensured.

The invention provides a foaming injection molding process optimization and product performance prediction method based on artificial intelligence, and aims to realize process optimization of product appearance and performance in a foaming injection molding process through an artificial intelligence algorithm. According to the method, light transmittance is used for indirectly representing the mechanical performance of a product, and the method comprises the following steps: performing mold testing analysis through an orthogonal experiment to obtain a process parameter-microstructure parameter-performance parameter data set; an LSTM model and an XGBoost model are adopted to construct correlation models of the technological parameters and the microstructures and correlation models of the microstructures and the product performance respectively; an optimization algorithm of LSTM-EGA and an optimization algorithm of XGboost-SEGA are constructed respectively, and the optimization algorithms are used for reversely deducing technological parameters according to the target parameters; the light transmittance of the product is adjusted according to the requirement for the mechanical performance of the product, and the optimal forming process is reversely solved through a model algorithm; and performing on-machine mold testing, adjusting a model structure based on a test result, and re-recommending a process. According to the prediction method, high equipment investment is avoided, and the test process is greatly simplified, so that the test cost can be remarkably reduced.

The invention provides an unmanned aerial vehicle dual-mode measurement and control system and method based on a high-throughput satellite, and relates to the technical field of unmanned aerial vehicle communication, and the system comprises an unmanned aerial vehicle platform, the high-throughput satellite, a ground gateway station of the high-throughput satellite, and a ground control station of the unmanned aerial vehicle platform. According to the system, a high-throughput satellite is adopted to solve the bandwidth requirement problem when a large number of unmanned aerial vehicles communicate at the same time, a ground gateway station of the high-throughput satellite is configured with a TDMA service carrier, a TDMA network control carrier, a CDMA service carrier and a CDMA network control carrier, forward remote control instructions are sent through a CDMA service channel in the system, and the bandwidth requirement of the unmanned aerial vehicles is met. According to the technical scheme of the invention, the TDMA service channel is used for returning the reverse measurement and control data, namely, a CDMA / TDMA dual-mode measurement and control method is adopted, so that the anti-interference performance of a high-throughput satellite forward link is improved, the technical problem that the communication of the unmanned aerial vehicle is easy to interrupt is avoided, and the reliability of the satellite communication system of the unmanned aerial vehicle is improved.

The utility model discloses a device for detecting a support surface of a mold of an injection molding machine. The utility model relates to the technical field of detecting molds of injection molding machines. The device for detecting the support surface of the mold of an injection molding machine is connected by a connecting sleeve and a connecting piece, and a bolt is used to strengthen the tightness of the connection between a dial indicator and a connecting rod. At the same time, a limit strip is used to limit the connecting sleeve and the connecting piece, so as to avoid the detection device causing the dial indicator to deflect after multiple operations, which is beneficial to optimizing the stability of the connection of the dial indicator and improving the detection accuracy of the detection device. By pressing the contact surface of the base against the first supporting surface or the second supporting surface, and using the detection head of the dial indicator to contact the supporting surface at the other end, the detection work of the support surface detection device of the mold of the injection molding machine is realized. The detection process is rapid, and it is convenient to accurately measure the mold of the injection molding machine before operation, which is beneficial to equipment debugging according to different situations, and improves the production and processing quality of the mold of the injection molding machine.

The invention discloses a method for repairing a movable mold of a complex cavity injection mold, the movable mold comprises a movable mold arranged on the complex cavity injection mold, the movable mold comprises a movable mold main body and a plurality of movable mold splicing pieces arranged on the movable mold main body, the movable mold main body is provided with a movable mold main body cavity surface, and the movable mold main body is provided with a plurality of movable mold splicing pieces; movable mold splicing piece cavity surfaces are arranged on the movable mold splicing pieces, and the movable mold main body cavity surface on the movable mold main body and the splicing block cavity surfaces on the movable mold splicing pieces are spliced together to form a whole movable mold cavity surface; the movable mold repairing method comprises the following steps of (1) manufacturing of an injection mold, (2) assembling of the injection mold, (3) setting of a unified standard of mold repairing, (4) mold testing, (5) three-coordinate detection, (6) setting of error compensation, (7) partition planning of mold repairing processing, (8) overall mold repairing and (9) disassembly and mold repairing. The mold repairing frequency can be reduced, and the manufacturing efficiency and quality of the injection mold are improved.

The present invention relates to the technical field of concrete test molds, and discloses an automatic oiling concrete test mold device, comprising a vibration table, a test mold, an oiling mechanism and an oil conveying mechanism, wherein two rows of test molds are neatly arranged on the surface of the vibration table, and each test mold is provided with three mold grooves, a support frame is provided at the upper end of the vibration table, and the oiling mechanism is slidably installed at the lower end of the top plate of the support frame. The automatic oiling concrete test mold device is provided with an automatic lifting and sliding brush head, and when the brush head probes into the mold groove, the same amount of oil is respectively injected into the oil filling groove and then seeps out from the oil outlet hole, and is adsorbed by the elastic oiling layer and smeared on the inner wall surfaces of two side-by-side mold grooves, and the oiling is convenient and fast. When the oiling mechanism is working, under the action of the first limit plate and the second protective edge, the second limit plate and the first protective edge, the four sides of different numbers of test molds are limited and fixed, and the practicability is high, and the movement of the test molds during the oiling process is effectively prevented.

The invention discloses an injection molding defect correction rule learning method and a terminal, and relates to the field of injection molding process optimization, and the injection molding defect correction rule learning method comprises the following steps: collecting multiple groups of mold testing data of a mold testing process; subtracting the data corresponding to each former mode from the last mode data of each trial mode process to construct a training data set; screening the training data set according to a preset support degree threshold to obtain a frequent data set; screening the frequent data set according to a preset confidence threshold to obtain a rule set; and screening the rule set to obtain a defect correction rule. According to the technical scheme, the data sets of multiple mold adjustment processes can be collected, learning of injection molding defect correction knowledge is automatically completed, manual intervention is not carried out, individual difference, deviation and locality of manual knowledge summarization are avoided, and good data compatibility can be achieved.

The utility model provides a heat dissipation system of an injection mold, which relates to the technical field of injection molds and comprises a main injection mold, a mold copper water nozzle and an on-off valve core, the side surface of the main injection mold is in threaded connection with the mold copper water nozzle and the on-off valve core, a cooling water channel is arranged in the main injection mold, and the cooling water channel is communicated with the on-off valve core. The cooling water channel is communicated with the expansion water channel, an on-off valve body is arranged in the middle of the expansion water channel, the cooling water channel is of a U-shaped structure, and the head end and the tail end of the cooling water channel are communicated with mold copper water nozzles. Two single straight-through water channels are combined into a U-shaped cooling water channel, the cooling water channels are arranged in a main injection mold at intervals in an array mode, an expansion water channel is communicated between every two adjacent cooling water channels, water is conveyed to surround a circle in the mold, the number of mold copper water nozzles is reduced, and the problems that a mold water channel is a single straight-through water channel, and the number of external copper water nozzles is large are solved. And a large amount of time is consumed for mold testing personnel to connect an external copper water nozzle through a water pipe.

The invention relates to the technical field related to concrete tests, in particular to a road and bridge deck concrete abrasion impact composite damage testing device and method.The device comprises a device body and device accessories, and the device body is a concrete abrasion impact testing machine; the device accessories are a high-power dust collector, a digital display control instrument, a small ball fixing clamp, an impact steel ball, an impacted small ball and a concrete mold. The testing method comprises the following steps: pouring a test block by using a concrete mold according to a concrete mixing proportion; fixing the test block maintained to the target age by using a fixing clamp, and carrying out wear test on the test block by using a wear test module; the drop hammer impact test module is used for carrying out impact test on the test block, and the wear impact composite test can be realized by switching the function switching test module through the device.

The utility model provides a high-precision mold testing machine which comprises a machine frame, a working table, a mounting top plate, a mounting support and a lifting driving assembly, the lifting driving assembly comprises a rotating motor, a crank, a driving rod assembly, a hinge seat, a lifting support and a first driving block, and the rotating motor is fixed at the upper end of the mounting support; the crank is rotatably mounted on the mounting support, one end of the crank is connected with the power output end of the rotating motor, a driving arm is arranged in the middle of the crank, a center shaft of the driving arm is arranged on a rotating shaft of the power output end of the rotating motor in an offset mode, and the middle of the lifting support is slidably connected with the mounting top plate. The upper end and the lower end of the driving rod assembly are hinged to the driving arm and the hinge seat correspondingly. The first driving block is fixed to the lower end of the lifting support. The design has the advantages that the running stroke of the mold can be more accurately controlled, the mold can still keep the original position without moving during power failure, the safety of equipment is improved, and the mold can be prevented from being damaged.

The invention relates to the technical field of injection mold testing, in particular to an injection mold pressure testing device which comprises a frame and further comprises a clamping assembly arranged on one side of the frame and a pressure equalizing plate, a moving assembly arranged at one end of the clamping assembly, a detecting assembly arranged at the upper end of the moving assembly and an adjusting assembly arranged on one side of the detecting assembly. The adjusting assembly comprises a first supporting frame, the transmission assembly is arranged on one side of the fixing plate, and the displacement sensor is fixedly installed on the surface of one side of the fixing plate. According to the device, after the mold is clamped and fixed through the clamping assembly, the detection assembly is inserted between the movable mold and the fixed mold, specific force is applied, the detection assembly is driven to move through the moving assembly, the detection assembly detects the pressure at the edges of the movable mold and the fixed mold, the detection range is widened, and meanwhile when it is detected that the pressure is abnormal, the detection assembly is started to detect the pressure at the edges of the movable mold and the fixed mold. Multiple positions of the abnormal area can be conveniently detected, the range of the abnormal point location is further narrowed, and the detection precision is improved.

The utility model discloses a mold test fixture and a mold test system, the mold test fixture is used for testing whether a vacuum hole of a mold is blocked, the mold test fixture comprises a test main body, the test main body is provided with a plurality of through holes, and one end of at least part of the through holes is used for communicating with one end of the vacuum hole; the other ends of at least part of the through holes are correspondingly provided with airflow indicating pieces, and the airflow indicating pieces can generate position changes under the action of airflow. When the other end of the vacuum hole of the mold is subjected to an air blowing test, whether the vacuum hole of the mold is blocked or not can be determined by observing whether the position of the airflow indicator in the mold test jig provided by the utility model is changed or not, so that the test accuracy and efficiency are improved.

The utility model discloses a metal mold testing tool, which relates to the technical field of metal molds and comprises a bottom plate, two carrier plates are symmetrically arranged on the upper surface of the bottom plate in a sliding manner, two supporting blocks and a motor are fixedly arranged on the inner side of each carrier plate, a bidirectional lead screw is rotatably arranged between the two supporting blocks, and a clamping groove is formed in the middle of each bidirectional lead screw. The metal mold testing tool comprises a support plate, a bidirectional lead screw and a motor, the support plate is arranged on the support plate, two moving blocks are slidably arranged on the inner side of the support plate, a limiting rod is fixedly arranged between the two moving blocks, and the output end of the motor penetrates through the support block and is fixedly connected with the bidirectional lead screw. Through cooperation of the telescopic sleeve and the insertion column structure, the tool can flexibly adapt to metal molds of different sizes and specifications, one set of tool can meet the opening and closing test requirements of various molds, and the cost that various special tools need to be arranged due to mold size differences is reduced.

This invention relates to the field of injection mold testing technology, specifically to a pressure-type injection mold sealing performance testing device. It includes a testing component, which comprises a support mechanism. A sealing element is provided on the outer wall of the contact area between the fixed mold body and the movable mold body. A pressure injection mechanism is sealed and installed at the injection port of the fixed mold body, and the other side of the pressure injection mechanism is installed on the inner wall of the support mechanism. This invention receives a signal from a pressure sensor, causing the gas injection head to stop gas delivery. External force is then used to push the movable mold body to perform a re-closing operation. During the closing process, the connecting rod can exert a squeezing effect on the sealing element. By calculating the total gas delivery volume and the amount of gas remaining in the sealing element, the capacity of the cavity in a sealed state can be determined. In subsequent use, as long as the injected gas volume does not exceed this capacity, the mold body can maintain a sealed state.

The invention provides a split type acetabulum filling cushion block driving-in tool, and belongs to the technical field of medical instruments. Performing main body mold testing; the tooth structure is fixedly connected to one side end of the main body test mold; the notch is formed in the lower end of the main body test mold; the acetabular cup prosthesis test mold is positioned in the notch; the striking head is positioned in the acetabular cup prosthesis test mold; the main body test mold adopts an L-shaped design and is preliminarily fixed through the sliding nail holes, so that fine adjustment can be performed in an operation to reach an optimal position, and accurate placement of the acetabulum filling cushion block is ensured. Due to the design that the tooth peak of the tooth structure is gradually thinned from the root to the head, the tooth structure can be embedded into the acetabular fossa of the host bone more smoothly, the operation difficulty is reduced, and the stability is improved.

The present application relates to a kind of encapsulation mold test and production data processing and prediction method.The method includes: setting sensor group in each detection position;At least one preset test condition is executed to obtain test data;According to test data, obtain the multi-condition strain correlation prediction model of each detection position in preset test condition;Sample production data obtained by each sensor group;Compare the comparison value of production data and test data under the same test parameter in preset test condition, obtain model error;Update model error to multi-condition strain correlation prediction model, in multiple preset production cycle, the model error attenuation value under the same test parameter is calculated, the performance attenuation value of the packaging mold to be measured in each preset production cycle is predicted;According to performance attenuation value, the production quality failure threshold of the packaging mold to be measured is calculated.The present application predicts mold performance attenuation and calculates production quality failure threshold, effectively improves production stability and mold service life.

The utility model relates to a mold testing device which comprises a shell, a transmission shaft, a first sliding block, a second sliding block, two supporting blocks and a connecting assembly. A mounting opening is formed in the peripheral side of the shell; the transmission shaft is located in the shell and rotationally connected with the shell, the transmission shaft is provided with a first thread and a second thread, and the second thread is opposite to the first thread; the first sliding block is connected with the transmission shaft through a first thread; the second sliding block is connected with the transmission shaft through a second thread; the two supporting blocks are located on the two sides of the shell correspondingly. The connecting assembly comprises two connecting ribs, the connecting ribs are movably connected with the first sliding blocks, and the connecting ribs can rotate and slide relative to the first sliding blocks; the connecting rib is movably connected with the second sliding block and can rotate and slide relative to the second sliding block; the connecting rib is movably connected with the two supporting blocks, and the end of the connecting rib can rotate and slide relative to the supporting blocks. The distance between the supporting blocks can be adjusted, the requirements of different environments can be met, and the product cost and the management cost are reduced.

This utility model relates to the field of wheel rim mold testing technology and discloses a wheel rim mold product airtightness testing device. It includes a base plate for supporting an upper component, and an inner support mechanism for supporting different wheel rim molds is fixedly installed on one side of the top of the base plate. The inner support mechanism includes a power component for adjusting the inner support spacing and an inner support assembly for providing inner support to different wheel rim molds. A testing mechanism for testing different wheel rim molds is fixedly installed on the side of the top of the base plate away from the inner support mechanism. The advantages of the inner support mechanism are that the power component drives the telescopic rod to extend and retract via a cylinder, allowing for flexible adjustment of the inner support spacing; in the inner support assembly, a first connecting plate transmits motion, and three sets of circumferentially symmetrical inner support plates can evenly provide inner support to different wheel rim molds. The surface coating increases friction and prevents slippage. The second connecting plate makes the inner support more stable. The device is adaptable to various molds, ensuring mold stability during testing and improving testing accuracy.

A system for mold examination, comprising: a portable autofocus microscope comprising a housing, a pressure switch, a power supply module, a circuit arrangement and an optical lens module, wherein the pressure switch is attached to the housing, the power supply module is located inside the housing, the circuit arrangement is located inside the housing and includes a wireless communication module, wherein the optical lens module is located at the bottom of the housing and has an autofocus function and an illumination source;as well as a display device that communicates wirelessly with the portable autofocus microscope via the wireless connection module to receive the images captured by the portable autofocus microscope, on which a special application is installed that, when run on the display device, displays the images in real time and analyzes these images using artificial intelligence (AI) to provide results for mold investigation.

The invention belongs to the technical field of mold pressure testing, and discloses a tire mold pressure testing mold testing machine which comprises a bottom carrying table, a top frame is installed at the top end of the bottom carrying table, a main hydraulic cylinder is installed at the center of the top end of the top frame, and a multi-point pressure detection assembly is fixedly installed at the lower end of a piston rod of the main hydraulic cylinder. A chain roller conveyor is installed at the top end of the bottom carrying table, a lower mold centering assembly used for enabling a tire lower mold on the chain roller conveyor and the main hydraulic cylinder to be kept in a coaxial state is installed at the top of the bottom carrying table, and upper mold feeding and moving assemblies used for bearing a tire upper mold are installed on the left outer wall and the right outer wall of the chain roller conveyor. The upper mold feeding and moving assembly is used for moving a tire upper mold to the position under the multi-point-position pressure detection assembly, the left position and the right position of the top end of the bottom carrying table are each provided with a double-shaft picking assembly, and the double-shaft picking assemblies are used for clamping the tire upper mold on the upper mold feeding and moving assembly and completing mold closing operation with the centered tire lower mold; the upper and lower molds of the tire can be automatically closed and detected.

This invention discloses a hot runner mold testing device for acoustic component processing, relating to the field of mold testing technology. It includes a base plate with circular holes at its four corners. A processing table is fixedly connected to the center of the top surface of the base plate. A control panel is fixedly mounted on the surface of the processing table. A shelf is fixedly connected to the center of the top surface of the processing table. Clamping plates are slidably connected to both sides of the inner side of the shelf. An upward-opening through groove is formed in the center of the clamping plates. This invention has a reasonable structure. The hot runner mold inside the shelf is fixed on both sides by a positioning component and a driving component. Then, the bottom of the sampling hopper on the testing component aligns with the nozzle of the hot runner mold to complete the sampling and testing work.

The invention provides an injection speed determination method and device, an injection molding method and device and electronic equipment, and belongs to the field of intelligent manufacturing, and the method comprises the steps that an injection molding machine is controlled to conduct injection according to multiple different set injection speeds, the actual filling time and the actual injection pressure peak value at each set injection speed are obtained, and a relative viscosity index is obtained through calculation; and determining the change trend characteristics of the relative viscosity index along with the set injection speed based on the relative viscosity index, and determining the target injection speed of the injection molding machine. The physical principle that the injection pressure and the filling time represent the viscosity under the constant volume is utilized, a rheology curve can be constructed without an external rheometer, the optimal process point is automatically locked by identifying the stable trend of the curve, the problems that traditional injection molding depends on empirical machine adjustment, and the flowability cannot be objectively quantified are solved, and the production efficiency is improved. And accurate and automatic setting of scientific mold testing and process parameters is realized.

The invention discloses an extrusion molding process parameter intelligent setting method based on scientific mold testing, and belongs to the technical field of plastic extrusion molding processing. A momentum optimization algorithm is introduced in the training process of a classic BP neural network, and after the neural network is verified to be reasonable, online process parameter adjustment is performed; a particle swarm algorithm is adopted to replace a traditional manual trial and error method, automatic and global intelligent optimization of process parameters is achieved, a process parameter combination is recommended by comparing the maximum pressure of an outlet section predicted by a neural network with the actual maximum pressure of the outlet section, the simulation efficiency is improved, real-time adjustment of the process parameters is achieved, and the process parameters are optimized. According to the method, in the actual industrial production period, analysis simulation and prediction can be conducted through computer data, remote calculation and online process parameter adjustment can be achieved only by uploading product and mold data to the cloud end by an operator, and good universality and convenience are achieved in industrial production.