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Control method of centralized feeding system of full-automatic PVC (polyvinyl chloride) mixing line
ActiveCN119550603Aimprove accuracyprecise pressure controlTotal factory controlThermodynamicsPlasticulture
The invention relates to the technical field of plastic production, in particular to a control method of a PVC (polyvinyl chloride) full-automatic mixing line centralized feeding system, which comprises the following steps: acquiring each sub-domain and a melt plasticizing value of each sub-domain at each acquisition moment; the ideal melt plasticizing value of each sub-domain and the simulated melt plasticizing value of each sub-domain at the next acquisition moment are obtained respectively; obtaining the fitness of each parameter vector; in the process of obtaining the optimal parameter vector at the current collection moment, the convergence factor during each iteration passes through the convergence factor during the adjacent iteration and the closeness degree of the fitness of all parameter vectors during the adjacent iteration, and the difference of the parameter vectors between each iteration and the adjacent iteration is combined to obtain the optimal parameter vector at the current collection moment. Comparing the simulated temperature at the next acquisition moment with the preset ideal temperature for updating; and controlling the pressure of the die head of the extruder based on the obtained optimal parameter vector. The invention aims to improve the control precision of the pressure of the extruder die head.
Owner:JIANGSU NEW TECH DEV
Variable rate fertilizer applicator based on soil moisture content
The utility model relates to a variable fertilizer distribution and application machine based on soil moisture content, and relates to the technical field of agricultural machinery; the material cylinder bottom end discharge hopper is inserted in the poking plate, and a magnetic valve is arranged on the discharge hopper; a plurality of distribution hoppers are arranged on the outer ring wall of the central roller in equiangular distribution; the bottom of the poking plate is provided with a discharge hopper; the front end of the central shaft is rotatably connected to the front side wall of the poking plate through a bearing, and the central shaft is arranged on the front side of the poking plate; the variable component is arranged on the front side of the central shaft; the water tank is fixedly arranged on the base frame, and the water tank is arranged on the right side of the groove; a water pump is arranged on one side of the water tank, a drain pipe is arranged on the water outlet of the water pump, and the drain pipe is arranged in the groove; the discharge amount is controlled by controlling the rotating speed, so that the fertilizer is discharged according to the soil requirement, and the water flow is adjusted according to the soil humidity to promote the dissolution of the fertilizer.
Owner:乌兰察布市农牧业生态资源保护中心
A centrifugal purification device for production of Chinese medicine oral liquid preparations
The present invention relates to the technical field of traditional Chinese medicine production and purification, and in particular to a centrifugal purification device for the production of traditional Chinese medicine oral liquid preparations. The present invention includes a supporting device and a centrifugal device, the centrifugal device is connected to a pipeline system, the centrifugal device includes a centrifugal cylinder and a sedimentation cylinder, the centrifugal cylinder and the sedimentation cylinder are connected and combined by a combined clamping plate and driven to rotate by a power device, and a cleaning device and a monitoring system are arranged in the centrifugal device. The supporting device is used to support the centrifugal device to reduce the shaking of the centrifugal device when it rotates at high speed. The centrifugal cylinder is used to store medicines and generate centrifugal force through rotation to throw impurities with higher density into the sedimentation cylinder. The sedimentation cylinder is used to receive separated impurities for easy cleaning. The monitoring system is used to monitor the operating data of the equipment, ensure the normal and continuous operation of the equipment, improve production safety and ensure the quality of production.
Owner:SHANDONG XIANHE PHARM CO LTD
A magnetic deceleration structure and sunshade
ActiveCN110712499Breduce rotation speedeasy to useWindowsDoor/window protective devicesStructural engineeringControl theory
Owner:董克思 +1
Display stand with folding function
ActiveCN222604248UImplement the folding functionEasy to displayShow shelvesShow hangersElectric machineryStructural engineering
The utility model relates to the technical field of display stands, in particular to a display stand with a folding function. Comprising a base and a display stand, the display stand is arranged at the inner bottom of the base, the display stand comprises a first display stand body arranged at the inner bottom of the base, a second display stand body arranged at the center of the first display stand body and a third display stand body arranged at the center of the second display stand body, and a lifting assembly is arranged at the inner bottom of the first display stand body; the lifting assembly comprises a first motor arranged at the inner bottom of the first exhibition stand, a first gear arranged at one end of the output shaft of the first motor, four second gears meshed with the first gear, and trapezoidal screw rods connected to the second gears, and an output shaft of the first motor rotationally penetrates through the inner bottom of the first exhibition stand; a rotating assembly is arranged in the base, the rotating assembly drives the exhibition stand to rotate, and a plurality of storage boxes are arranged on the first exhibition stand. Compared with the prior art, the foldable display stand has the advantages that the display stand can be folded, and the display stand can rotate.
Owner:SHANGHAI MUCHI INFORMATION TECH CO LTD
Shell and kernel separating device for stir-frying nuts
PendingCN122074676ASolving technical problems with high breakage ratesavoid partial depressionGas current separationPackagingBiotechnologyWalnut Nut
The invention discloses a shell and kernel separating device for frying nuts, relates to the technical field of nut processing, and aims to solve the technical problem of high breakage rate of walnut kernels at present. The shell and kernel separating device comprises a separating box, a feeding mechanism arranged on the separating box, and a clamping mechanism, a rolling mechanism and a winnowing mechanism which are arranged in the separating box, the feeding mechanism comprises a feeding box used for feeding walnuts, the clamping mechanism comprises clamping plates, limiting plates and a pushing unit, the clamping plates and the limiting plates are used for applying pressure to six surfaces of the walnuts, the pushing unit is used for driving the clamping plates and the limiting plates, and the rolling mechanism comprises a conveying extrusion roller and a friction roller which are used for receiving the cracked walnuts. A spiral conveying groove is formed in the outer surface of the conveying extrusion roller, and the winnowing mechanism comprises a winnowing cylinder and a supporting cylinder which are used for separating shells and kernels. The walnut shell removing device has the advantages that shells are removed in a friction and extrusion matching mode through six-face uniform clamping pre-splitting and gradual-change diameter rolling conveying, the walnut shell removing device is suitable for walnuts of different sizes, the breakage rate of walnut kernels is reduced, and the integrity and value of the separated walnut kernels are improved.
Owner:CHANGZHOU ZHENGXIN FOOD TECHNOLOGY CO LTD
Anti-skid conveying device of uphill belt conveyor
The utility model discloses a kind of anti-skid conveying devices of climbing belt conveyor, belong to climbing belt conveyor technical field.This kind of anti-skid conveying device of climbing belt conveyor, including main body and adjusting mechanism, main body includes mounting bracket, the both sides of one end of mounting bracket are all provided with sliding slot, the inside of sliding slot is all slidably installed with bearing seat, a pair of bearing seat is wound with driven roller between, the inside of the other end of mounting bracket is rotatably connected with driving roller, driven roller and driving roller are wound with belt between, the outer surface of belt is provided with several groups trapezoidal anti-skid protrusions at equal intervals, the inside of mounting bracket is rotatably connected with several support rollers between driven roller and driving roller, the outside of support roller and the inside of belt are in abutment;Adjusting mechanism includes a pair of fixed frame, the bottom of a pair of fixed frame is respectively connected with the upper end of mounting bracket two sides, the inside of fixed frame is slidably inserted with baffle, the utility model, can effectively improve the practicality of anti-skid conveying device of climbing belt conveyor, with higher practical value.
Owner:DONGGUAN RONGYUAN AUTOMATION TECH CO LTD
Ball mill positioning shutdown control device
PendingCN119588465AConvenient speed controlsmall inertiaGrain treatmentsFrequency changerElectric machine
The invention relates to the technical field of ball mill shutdown control, in particular to a ball mill positioning shutdown control device. The control device comprises a proximity switch arranged on one side of a ball mill barrel, the proximity switch can sense the distance between the proximity switch and the ball mill barrel, the proximity switch is electrically connected with a PLC, the PLC is electrically connected with a high-voltage frequency converter, and the high-voltage frequency converter is electrically connected with a motor. Through cooperative work of the proximity switch, the PLC, the high-voltage frequency converter and the motor, inertia of the ball mill during shutdown can be effectively reduced, accurate positioning of shutdown of the ball mill is achieved, the accuracy of the parking position is greatly improved, the vehicle returning situation caused by the inertia of the ball mill and the problem of post multiple shutdown caused by the vehicle returning situation are avoided, and the service life of the ball mill is prolonged. And the impact of frequent start and stop on high-voltage equipment is reduced, the continuity of a post process is guaranteed, the equipment fault occurrence rate is reduced, and good conditions are created for a subsequent process.
Owner:PANZHIHUA MINING FRIENDS NEW MATERIAL CO LTD
A rat overrunning test device and a test method
The present application relates to a kind of RAT overrunning test device and test method, belong to aviation emergency energy technical field, RAT overrunning test device is mainly composed of cabin pressure control module, test cabin module, RAT performance test module, hydraulic source module, motor etc..Wherein the RAT of test piece is fixed to test cabin module by mounting bracket, test cabin is evacuated by cabin pressure control module before test, hydraulic source provides high-pressure oil source for motor, motor provides driving power for RAT, motor is integrated with speed sensor, sensor signal is shown on hydraulic source module, can be controlled test piece speed in real time, overrunning process is tested RAT performance by performance test module.
Owner:JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
Emulsifying device for microsphere preparation
ActiveCN224194470UGood dispersionImprove work efficiencyMixing methodsTransportation and packagingMicrosphereControl engineering
The utility model discloses an emulsifying device for preparing microspheres, which belongs to the technical field of emulsifying equipment and comprises a workbench, an injection part and an emulsifying part are mounted on the workbench and connected through a connecting guide pipe, and the emulsifying part comprises a support frame arranged on the upper end face of the workbench and a rotary joint mounted on the upper portion of the support frame. The lower end of the rotary joint is rotationally connected with a communicating pipe, a rotating part for driving the communicating pipe to rotate is arranged on the outer side of the communicating pipe, and a metal porous membrane liquid outlet cover with a liquid leakage function is detachably arranged at the free end, deviating from the rotating part, of the communicating pipe. The device has the beneficial effects that the speed of a dispersed phase entering a continuous phase is controlled by adjusting the feeding speed of the injection pump, and the rotating speed of the liquid outlet cover is adjusted by adjusting the rotating speed of the motor, so that the interface shearing force is controlled, the working efficiency is effectively improved, and the obtained microspheres are high in dispersity and good in stability. The method can be used for precise small-batch preparation of dispersed phase and component microspheres.
Owner:BROSMED MEDICAL CO LTD