146results about How to "Accurate weight" patented technology

The invention relates to a system and a method for automatically measuring dimension and weight of a road vehicle, in particular to an integrated system and an integrated method for rapidly and dynamically measuring the length, width, height and weight of a vehicle, and aims at effectively solving the problems in overloading detection work at present. According to the system, the dimension information of the vehicle is measured in a front and back portal frames manner; the width and height information of the vehicle in a single lane is measured by combination of two two-dimensional laser radars on the front portal frame, so that the measurement problem caused by vehicle deformation can be effectively avoided; and the length information of the vehicle in the single lane is indirectly measured by virtue of a single laser radar on the rear portal frame; and starting and stopping information of the single vehicle is provided for a shaft-type weighing scale by virtue of a laser radar separation vehicle on the front portal frame. The system has the advantages of high measurement speed and high accuracy, and normal running of the vehicle is not affected.

The invention relates to a storage and transportation box. The storage and transportation box is provided aiming at the problems that existing wooden box sealing procedures are complex, a lead seal for recording object information in a wooden box is easily lost, and the wooden box is easily damaged. The storage and transportation box comprises a box body, a box cover and a lock catch. The storageand transportation box is characterized by further comprising an anti-theft clamping plate; the anti-theft clamping plate comprises a clamping plate body, a plate-shaped convex part, concave parts andjamming thin plates; a two-dimensional code adhesion region is arranged on the front face of the clamping plate body, and an indentation line is arranged on the back face of the clamping plate body;one end of each jamming thin plate is a fixed end, and the other end of each jamming thin plat is a free end; the width of the portion between the outer side edges of the fixed ends of the two jammingthin plates is consistent with the width of the clamping plate body; and the width of the portion between the outer side edges of the free ends of the two jamming thin plates is larger than the widthof the clamping plate body. A first strip-shaped hole is formed in the edge of the box cover, and a second strip-shaped hole is formed in the portion, corresponding to the first strip-shaped hole, ofthe box body. Beads are arranged on the left side and the right side of the lower portion of the second strip-shaped hole, and grooves are formed in the opposite inner side faces of the two beads. Ananti-prizing plate is arranged on the front side of the lower portion of the second strip-shaped hole.

The invention relates to the technical field of fracturing mining of petroleum, natural gas and shale gas, in particular to an ultra-light film-coated proppant. The ultra-light film-coated proppant comprises aggregate, special resin, a curing agent, an accelerant and a dispersing agent, and the special resin includes resin and subnanometer inorganic materials. The invention further discloses a preparation method of the ultra-light film-coated proppant. The preparation method includes: 1), heating the aggregate into 130-350 DEG C; 2), adding the special resin to enable the special resin to be evenly stirred and coated with the aggregate, and then adding the curing agent and the accelerant for even stirring for curing; 3), adding the dispersing agent with even stirring till the material is dispersed into single particles; 4), performing cooling, crushing and sieving to obtain the film-coated proppant. The film-coated proppant obtained is small in volume density and apparent density, capable of being delivered remotely, uniform in pavement and favorable for improving oil and gas mining quantity.

The invention relates to a magnesium ingot casting machine, in particular to a small-size magnesium ingot casting machine. The small-size magnesium ingot casting machine comprises a heat-preservation furnace, a heat-preservation pot, a plurality of moulds, a machine frame, a horizontal conveying mechanism and a driving mechanism, wherein the heat-preservation pot is sleeved inside the heat-preservation furnace and used for containing molten magnesium, the horizontal conveying mechanism is arranged on the machine frame and the driving mechanism is connected with one end of a lever rocking arm and drives the other end of the lever rocking arm to swing up and down in a reciprocating mode. The horizontal conveying mechanism comprises two drive sprockets, two driven sprockets, two conveying chains, a motor and a speed reducer, wherein the two drive sprockets and the two driven sprockets are respectively arranged at the front end and the rear end of the machine frame, the speed reducer is connected with the motor and is connected with a sprocket shaft of the drive sprockets through a coupler, a large sprocket is arranged on the sprocket shaft of the drive sprockets, the two conveying chains are respectively meshed with chain teeth at the corresponding side of the two drive sprockets and the two driven sprockets, a bearing panel is connected between every two opposite chain sections of the two conveying chains, one mould is fixedly arranged on each bearing panel, and a linear motion track among the moulds is guaranteed.

The invention relates to an extrusion forming device and process for a small-caliber chalcogenide glass bar material, belonging to the technical field of secondary thermal forming of chalcogenide infrared glass. The process is a mechanical forming process for the small-caliber chalcogenide glass bar material. The extrusion forming device is mainly characterized by comprising an extrusion mechanism, a heating furnace, a mold, a riding wheel mechanism and a panel, wherein the heating furnace is fixed at one end of the panel; the riding wheel mechanism is fixed at the other end of the panel; the lower section of the cylindrical-step-shaped mold penetrates through the bottom of the heating furnace, and an air tube and an end cap are arranged at the lower section of the mold outside the heating furnace. According to the extrusion forming device and the extrusion forming process, by forming a once-fused chalcogenide glass blank into the small-caliber chalcogenide glass bar material by virtue of the mold, the rapid acquiring of lenses with corresponding calibers can be directly met, the weights of larger-caliber blanks can be precisely acquired, lots of procedures in secondary forming and material preparation links are reduced, the yield is increased, the material loss in the material preparation link is saved, and the manufacturing cost of chalcogenide infrared lenses is effectively lowered.

The invention discloses a solar polycrystalline silicon ingot doping method and doping equipment thereof. The doping method comprises the following steps of: 1, putting not less than 50 percent of primary silicon and reclaimed impurities into a crucible, and putting the crucible into an ingot furnace; 2, heating the ingot furnace, extracting a part of molten polycrystalline silicon from the molten silicon when all the silicon is melted, solidifying the molten polycrystalline silicon into a polycrystalline silicon block, quickly cooling the polycrystalline silicon block to room temperature, and performing conductive type and resistance test on the polycrystalline silicon block; 3, calculating the weight of doped boron master alloy according to the conductive type and the resistance measuring data of the polycrystalline silicon block; and 4, adding the calculated boron master alloy into the molten polycrystalline silicon in the ingot furnace, and casting ingots. The doping equipment comprises the quartz crucible, the ingot furnace, a nitrogen-charging cooling secondary chamber, a molten silicon quartz extraction bar and a boron master alloy feeding ladle. By using the method for measuring and assessing the silicon, the whole quality performance accuracy is high, so the calculated weight of the doped boron master alloy is accurate and the reject rate is low. The equipment has simple structure and is convenient to use.

The invention discloses a clothes weighing method of a roller washing machine. The roller washing machine comprises a main control board, a driver and a motor which is electrically connected with the driver; clothes are added into the washing machine, and step A to step D are repeated in sequence to obtain a weighing returned value P<weight> of the added clothes; the main control board of the roller washing machine is used for calculating the clothes weight Pclothes weight of the added clothes according to a formula of Pclothes weight=A*Pweight+B in step G. According to the clothes weighing method disclosed by the invention, the weight of the clothes can be accurately obtained through control and an algorithm by utilizing the clothes weighing method under the condition that the weight of the clothes is unknown, so that a washing water level and a rinsing water level are accurately set in washing and rinsing processes of the washing machine, and the aim of washing the clothes by utilizing a proper water quantity is realized; water resources are saved and the consumption of electric energy is reduced; the weighing precision is remarkably improved, and the more accurate clothes weight can be obtained.

The invention provides an automobile overload non-stop detection system and detection method based on RFID. The system includes a piezoelectric cable sensor, two groups of infrared grating instruments, an RFID reader, an RFID label, a computer, a DSP processor, a signal amplification circuit, a timer, and an LED display screen. A weigh-in-motion system is composed of the piezoelectric cable sensor, the signal amplification circuit, and the DSP processor, the dynamic weighing system is connected with the computer, the timer is connected with the infrared grating instruments, the infrared grating instruments are connected with the piezoelectric sensor, the RFID reader is connected with the computer, the RFID label is arranged on an automobile, and the computer is connected with the LED display screen. The weigh-in-motion system measures the weight signal during the automobile driving process and performs data processing; the timer records the automobile driving time; and the infrared grating instruments eliminate vehicle following phenomenon and are taken as the switch of the weigh-in-motion system. The system has the characteristics of high measurement precision, less damage to the pavement, and high adaptability.

The invention discloses a method and a system for obtaining coke weight based on a dry quenching lifting device. An ascent stage and a declining stage of the dry quenching lifting device existing in the coke industry are respectively calculated to obtain a weight G1 of a coke pot for containing coke at the ascent stage and a weight G2 of the coke pot at the declining stage, and a weight G of the coke is obtained through the difference value of the G1 and the G2, namely G=G1-G2. Moreover, the dry quenching lifting device and existing output signals are used, and an accurate weight of a single pot of dry quenching furnace-loading coke is determined through the weight difference of the dry quenching lifting device at the ascent stage and the declining stage. Adding of other large-scale equipment is of no need, an original technological process does not need to be changed, the method is simple, the weight of the obtained coke is accurate, and the statistic analysis of various historical data can be carried out.

Device for determining the weight and number of chicks or other poultry, whereby the device contains detection and transport means to guide the chicks past the detection means, whereby the detection means enable an outline of the passing chick to be determined, whereby these detection means enable two outlines of the same chick to be determined in at least two different directions, and whereby these detection means are linked to a data processing unit that contains an algorithm to calculate an approximate weight from the combination of two or more outlines of the individual chick that came through the detection means at that time. The invention also provides a sorting device, including a plurality of outputting portions for sorting chicks, the device for determining the weight and number of chicks, and arithmetic which enables the chicks to be calculated, recorded and weighed.

The invention discloses a volumetric weighing and distributing device and a distributing method thereof, and belongs to the technical field of powder metallurgy. A distributing mechanism is arranged on a working platform, a dry pressing forming die is arranged below the distributing mechanism, a weighing device is arranged above the distributing mechanism, a feeding vibration disc is arranged above the weighing device, and an ejection mechanism is arranged on the lower surface of the working platform and located below the material distributing mechanism; and the weighing device comprises a mini air cylinder, a weighing hopper, a weight sensor, a cantilever beam, a stand column, a weighing hopper bin gate and an ejector rod, the distributing mechanism comprises a distributing hopper, a distributing motor, a crank, a sliding block and a distributing guide rail, and the ejection mechanism comprises a shell, a lifting stepping sliding table, a protruding block, an ejection reset spring, aconnecting plate, a clamping jaw, a ball screw, a sliding base and an ejection plate. According to the volumetric weighing and distributing device and the distributing method thereof, powder materialswith different densities are measured in two aspects of weight and volume, so that the weight of the powder materials filled in the distributing device is accurate, guarantee is provided for subsequent powder sintering, and the quality of finished products is effectively improved.

The invention discloses a living pig carcass tissue content determination method based on CT image processing. The invention belongs to the technical field of image processing. The method comprises six steps: 1, obtaining a CT image, and carrying out the denoising of the CT image; 2, segmenting and removing a bed board part in the CT image; 3, extracting a main skeleton part area of the CT image,and calculating the mass and proportion of the main skeleton part area; 4, extracting a main fat part region of the CT image, and calculating the mass and proportion of the main fat part region; 5, extracting and removing the viscera part of the CT image main body; and 6, extracting a main muscle part region of the CT image, and calculating the mass and proportion of the main muscle part region. Based on the characteristics on the CT image, targeted image region segmentation and correlation calculation are adopted, all visceral tissues of the pig carcass can be accurately and rapidly removed at a time, and the weight and proportion of bones, muscles and adipose tissues of the pig carcass are accurately segmented and measured.

The invention discloses a food processing method of a flour food maker. The flour food maker comprises a seat, a motor arranged in the seat, a weighing unit for weighing, a signal outputting unit for outputting weight information, a main control board, a stirring cup arranged on the seat, a stirring rod arranged in the stirring cup and a cup cover independently arranged on the stirring cup. The food processing method at least includes following steps: (a), resetting weight: powering on the flour food maker, and resetting overall weight through the control board; (b), weighing: weighing overall weight increase through the weighing unit, and transmitting signals to the control board; (c), recognizing cover closing: recognizing whether cover closing is performed or not through the control board, and removing weight of the cup cover if cover closing is performed; (d), making flour food: starting the motor, and stirring and mixing flour with water through the stirring rod. By the food processing method, the flour can be weighed accurately, so that weighing errors can be avoided.

The invention relates to the technical field of medical instruments, in particular to a traditional Chinese medicine digital measurement type rapid medicine-picking cabinet. The traditional Chinese medicine digital measurement type rapid medicine-picking cabinet is composed of a medicine case, a scrapping plate, a rotary shaft, a covering plate, an electronic balance, a data line, a display screen, a push-pull rod and a sliding-stop block. The medicine case is a case body with an open outer side, the scrapping plate with a C-shaped lateral surface is arranged in the medicine case, the scrapping plate and the medicine case are in an interference fit relationship, an inclination angle not larger than 45 degrees is formed at the end, facing the open surface of the medicine case, of the bottom of the scrapping plate, and a vertical cross beam is arranged at the end, facing the open surface of the medicine case, of the top end of the scrapping plate. In the process of measuring medicine, the hand does not need to make direct contact with the medicine, pollution to the medicine is avoided, it is ensured that the property of the medicine is not affected, medicine taking and medicine measurement are finished once, and the efficiency of measuring and taking the medicine is improved.

This invention is a home mini ice machine, which is used to produce the squarely transparent ice. It includes the ice forming system and freezing system, which are all in the body of the machine. The talked ice system is made up by water box, ice storage box, ice model shelf, ice model, water spraying pipe, water pump, upper and lower water pipes and direction board for the ice. The ice model shelf is fixed on the upper of the water box, there is ice on the ice model shelf, and there is direction board for the ice under the ice model which can be turned over. The ice storage box is under the direction board for the ice and can be freely get and put, and the water pump fixed on the floor of the machine. The outline of the water case connects with the pump, through the inlet pipe the water pump connects with the water spray pipe, and there is many holes on the spray pipe which are toward to the surface of ice model. There is electromagnetic valve of water inlet on the rear of machine, the valve connects with the water inlet pipe which is on the top of water case. This ice from this invention can be squareness, with hole at the middle and solid, and the yield is high.

Disclosed is an apparatus (1) for reeling yarn (17), comprising a bobbin receptacle that is mounted so as to be rotatable about the longitudinal axis thereof and is designed for accommodating a bobbin (3, 4), a pressure roll (15) for supporting the bobbin (3, 4) located in the bobbin receptacle, a pressure lever arm (6, 7) which is rotatably fixed to a fulcrum (10) in the region of the radially inward end thereof, and an active actuator (12) for twisting the pressure lever arm (6, 7) about the fulcrum (10). The bobbin receptacle is disposed at an outer end of the pressure lever arm (6, 7) so as to be rotatable perpendicular to the pressure lever arm (6, 7). The actuator (12) is provided with an electric motor (20) encompassing a sensorless motor controller. Said motor controller is designed so as to regulate a torque that is to be applied to the pressure lever arm (6, 7) by the electric motor (20) according to a predefined torque curve.

The invention belongs to the technical field of inspection for electric wire and cable materials, and relates to a test device for the oxidation induction time and carbon black content of an electric wire and cable sheath material. The test device comprises a tubular device, an annular heating device, a quartz tube, a first solenoid valve, a second solenoid valve, a bearing body, a supporting body, a thermocouple assembly, a test instrument, a combustion boat and a cork, wherein connection holes are formed in the cork, and the cork is plugged in a cavity in one end of the quartz tube; a channel capable of accommodating the quartz tube is formed in the tubular device, and the quartz tube is not in contact with the tubular device in an installation state; the heating device is distributed in the tubular device; and the output opening of the first solenoid valve is connected in one connection hole of the cork, and the output opening of the second solenoid valve is connected in a cavity in the other end of the quartz tube. The invention further discloses a test method. The test device and the test method disclosed by the invention have the main beneficial effects that the test device is simple in structure, easy to produce, low in cost, and accurate and reliable in test data; and the test method is simple, easy to grasp and low in production cost.

The invention discloses an automatic pastry production line. A dough conveying device conveys kneaded dough to a pre-press cutting device to cut the dough into multiple dough strips, then, the dough strips enter a continuous dough pressing device, the continuous dough pressing device automatically realizes multiple times of S-shaped folding and rolling, dough strips with set length and thickness are output to enter a dough strip transition device, the dough strip transition device sends the dough strips into a dough strip lapping device, the dough strips are rolled again by the dough strip lapping device, the rolled dough strips enter a pastry forming device, a pastry product is formed through two times of dough pressing, dough column winding and cutting in the pastry forming device, the pastry product finally enters an automatic arranging machine for arrangement, resting and steaming. The automatic continuous production in the whole process is realized, the production efficiency is high, gluten networks are kept complete and uniform, gluten is more chewy, tearing of dough strips is avoided, the weight of products is more accurate, operation is convenient, and the automatic pastryproduction line can be used for producing staple food such as wheat flour pastry, cereal pastry and steamed stuffed buns.

The invention discloses a cigarette weight collecting device. The device comprises a microwave density and humidity detector, a signal conversion isolating circuit, CPLD, and CPU, wherein the signal conversion isolating circuit is composed of a HCPL-0720 high speed optical coupler, and a voltage division circuit and an RCD circuit are constructed on the high-speed optical coupler. A tobacco shred signal provided by the microwave density and humidity detector is transferred to the CPLD through the signal conversion isolating circuit, the synchronization of the tobacco shred signal and a cigarette length signal is achieved in the CPLD, then the synchronized signals are transferred to the CUP to carry out treatments so as to obtain the accurate data of the tobacco shred, then an execution mechanism, which is used to adjust the supply of tobacco shreds, is controlled after the control conversion, and thus the adjustment of cigarette weight is achieved. The device can get rid of the abnormal data in the density signals, filters the noise interference signals, and achieves more precise control.

The invention provides a lubricating grease subpackage device which comprises a fixed frame and a grease storage tank. A sealing cover is mounted at the top of the grease storage tank. A piston is mounted in the grease storage tank. An inner cavity of the grease storage tank is divided by the piston into an air cavity on the upper portion and an oil storage cavity on the lower portion. An exhaustpipe communicating with the air cavity and an air inlet pipe externally connected with compressed air are arranged at the top of the grease storage tank. A grease outlet is formed in the bottom of theoil storage cavity and connected with a discharging t-branch pipe. Two outlets of the discharging t-branch pipe are each connected with an oil conveying pipe. Each oil conveying pipe communicates with a filling head. A subpackage barrel is arranged below each filling head. Each subpackage barrel is placed above a metering device. The lubricating grease subpackage device has the beneficial effectsthat the piston is pushed by the compressed air to press in lubricating grease in the grease storage tank, the lubricating grease is fed in the subpackage barrels through the oil conveying pipes, airis separated from the lubricating grease, air is not prone to being mixed into the lubricating grease, lubricating quality is guaranteed, and the two subpackage barrels can be filled with the lubricating grease at the same time.

The invention discloses a high-precision Chinese medicinal material dispensing and sub-packaging system. The system comprises a sub-packaging machine body, wherein the sub-packaging machine body is ina rectangular shape; a damping universal wheel device is arranged at the bottom of the sub-packaging machine body; a feeding device is arranged above the sub-packaging machine body; a stirring deviceis arranged in a Chinese medicinal material stirring box; an automatic weighing device is arranged in a Chinese medicinal material weighing box; a controller is arranged on one side of the sub-packaging machine body; and the controller is respectively and electrically connected with the feeding device, the stirring device and the automatic weighing device. The high-precision Chinese medicinal material dispensing and sub-packaging system disclosed by the invention has the beneficial effects of simple structure and strong practicability.

The invention discloses a weighing and sorting machine for a cork sheet of a badminton ball head. The weighing and sorting machine comprises a vibration plate feeding device, a weighing device and a chute valve blanking device; the weighing device comprises a base plate, a weighing mechanism and a cork sheet transfer component, wherein the weighing mechanism and the cork sheet transfer component are arranged on the base plate; the weighing mechanism comprises a weighing sensor base fixed with the base plate, a weighing sensor arranged on the weighing sensor base and a weighing support frame connected with the weighing sensor; the cork sheet transfer component comprises a material pushing mechanism and a material moving mechanism; the material moving mechanism comprises a synchronous motor, a first shaft and a second shaft, wherein the first shaft and the second shaft are fixedly arranged on the base plate through a bearing pedestal; the tail ends of the first shaft and the second shaft are respectively connected with a first connecting rod and a second connecting rod; the tail ends of the first connecting rod and the second connecting rod are respectively connected with the two ends of a handling connecting rod. The invention provides the weighing and sorting machine for the cork sheet of the badminton ball head, which is efficient and stable.

The invention discloses a multi-layer cake cream spreading machine. The multi-layer cake cream spreading machine comprises an operation table for operation, wherein a conveying belt is arranged on theoperation table; a sweet water sprinkling device, a jam spreading device, a single-layer cream spreading device and a laminating device are sequentially arranged on the lateral part of the conveyingbelt in the output direction; a multi-layer cake cream spreading device is linked up with a discharge end of the operation table; a manual stacking area is arranged in the middle of the operation table; the manual stacking area divides the operation table into a single-layer spreading area near the input side and a stacking and laminating area near the output side; single-layer cakes which are subjected to the operations of sweet water sprinkling, jam spreading and single-layer cream spreading are overlaid into a multi-layer cake, and the multi-layer cake is laminated by the laminating device;single-layer cakes are placed equidistantly on the conveying belt in the single-layer cake cream spreading area; and three single-layer cakes which are adjacent in the front and back direction are regarded as a group, and are respectively a first single-layer cake, a second single-layer cake and a third single-layer cake from front to back. According to the multi-layer cake cream spreading machine disclosed by the invention, manual operation is replaced with a machine to make cakes with high efficiency, and the produced cakes are regular in shape, beautiful, and accurate and consistent in weight.

The invention provides an anti-derailing automatic control method for a container on a reach stacker. The method comprises the following steps that after an anti-derailing enabling switch is closed, whether the container is locked to the reach stacker or not is detected; when the reach stacker is separated from the container, the lifting height H1 of the reach stacker is detected; when the reach stacker continues to lift by the height H2 at low speed, a reference weight value is set; the reach stacker continues to lift by the height H3, weighing values of weighing sensors are recorded at any time in the process, and the weighing values are compared with the reference weight value correspondingly; if any weighing value is larger than the reference weight value, the lifting action of a boomis immediately stopped for overhauling; and otherwise, the reach stacker returns to normal lifting speed until the container is separated from a flat car. According to the anti-derailing automatic control method, the weighing values of the weighing sensors are collected through a vehicle controller and compared with the reference weight value, and whether the container is separated from the flat car with an F-TR lock of an eagle head structure, and located below the container or not is automatically judged according to the comparison result so as to ensure that the container is safely separated from the flat car.

The invention belongs to the technical field of airplane weight measurement, in particular to a compensation device for hydraulic oil or nitrogen pressure damage of a landing gear for airplane weighing, and solves the problems that the conventional airplane weight measuring method is low in digital degree, the process is complicated and data does not have any real-time property. The first way of a four-way adaptor nozzle is fixedly connected with an oil injection nozzle or an air intake nozzle of the landing gear; the second way and the third way are fixedly connected with a pressure sensor; the fourth way is fixedly connected with an oil nozzle of a hydraulic isolation cylinder; the signal output end of the pressure sensor is connected with a weight and balance computer; the weight and balance computer is connected with the control end of a hydraulic electromagnetic switch valve and an external hydraulic pump; hydraulic oil of the external hydraulic pump are injected into an oil nozzle on the side of a guide rod of a sliding separator of the hydraulic isolation cylinder through the hydraulic electromagnetic switch valve and a hydraulic one-way throttling valve I; and an oil return port of the hydraulic electromagnetic switch valve is communicated with an oil storage chamber through a hydraulic one-way throttling valve II. The compensation device has the advantages that: the weight and gravity center of an airplane are accurately weighed and calculated, and a basis is provided for the safety of the airplane.

The invention provides a liquid heating container and a method and a system for weighing liquid in the liquid heating container. The liquid heating container comprises a kettle body component, a basecomponent which is supported at the bottom of the kettle body component and a power cable component which is arranged on the base component, at least one weight sensor which is arranged on the base component, and an electric control board which is electrically connected to the at least one weight sensor. The weighing method comprises the following steps: weighing weight W1 detected by the at leastone weight sensor; comparing the acquired weight W1 with a preset value W0; and when the W1 is greater than or equal to the W0, calculating a weight value Ws of the liquid in the kettle body component in accordance with a formula Ws=W1-WD-WH-WX, wherein a weight value WX of influence of the power cable component is an initial weight value of the power cable component, and bothy the weight WD of the base component and the weight WH of the kettle body component are predicted. With the application of the weighing method provided by the invention, liquid weight can be precisely detected and displayed, so that the total weight of the liquid in the liquid heating container can be checked by a user more conveniently and intuitively, and user's using experience is improved.

The invention belongs to the field of food machinery and especially relates to an automatic rice distribution system for student canteens. According to the automatic rice distribution system for student canteens, by measuring the rice weight with a sensor, accurate rice distribution is realized. The system is characterized in that: the inner of an integral frame 600 is provided with a stirring mechanism 100, a rice filling device 200, three sets of rice leakage devices 300, three sets of rice leakage outlet open-close devices 400, three signal detecting modules 500, and a one-chip microcomputer control system 700 , which are arranged from top to bottom; the stirring mechanism 100 is connected to a power supply, the rice leakage outlet open-close devices 400 and the signal detecting modules 500 are electrically connected to the one-chip microcomputer control system 700; the system is provided with the stirring mechanism and the sensor device; the rice filling device is provided with a rice adding funnel and so on. Automatic rice distribution is realized, the rice is kept friable and the taste is not affected. The system has following advantages: the accuracy of rice distribution is not affected by the rice cooking quality, the interference is low, the weight accuracy of each meal is guaranteed, the rice can be added at any time in the rice filling process, and the whole machine is convenient to clean.

The invention discloses a living crab intelligent sorting system. The living crab intelligent sorting system comprises a conveying device, weighing devices and a control system; multiple weighing devices are arranged on the conveying device; the weighing devices are used for weighing crabs and sending the crabs into the control system; and the control system displays weights of the crabs through adisplayer according to preset weight classifying sections. The living crab intelligent sorting system has the following advantages: the crabs are conveyed along a conveying belt by adopting a mode ofthe conveying belt; the weighing devices and the displayer are arranged on the conveying belt; and the displayer displays the classification and the weights of the crabs, so that the crabs are conveniently and quickly collected into classifying boxes on two sides of the conveying belt by workers, and the classifying efficiency is improved.

The invention relates to the field of medical surgery, and discloses a head traction support device. The device comprises a head frame, a traction bow, a pair of slide rails, a head frame support cross bar, a head frame supporting post, a pulley post, and a main cross bar, wherein the head frame is provided with a head frame support column interface, and skull positioning pieces are provided at both ends; the traction bow is hinged to both ends of the head frame; the pair of slide rails are oppositely arranged and provided with slide grooves, and one end of the pair of slide rails is connectedby a horizontal rail; two ends of the head frame support cross bar are respectively penetrated in the pair of slide rails; one end of the head frame support column is fixedly connected to the head frame support cross bar, and the other end is detachably connected to the head frame support column interface; a top end of the pulley post is provided with a pulley lifting rod, a top of the pulley lifting rod is provided with a fixed pulley, the traction bow passes around the fixed pulley through a traction rope, and an outer side of the horizontal rail can be lifted and fixed on the pulley post;the main cross bar passes through an end of the pair of slide rails away from the cross rail and is rotatably connected to the pair of slide rails, and main cross bar is located at an outer end of thepair of slide rails and is provided with an operating bed connecting arm. The device can traction and support the head reliably, and has accurate traction weight in a prone position and avoids facialand eye pressure injuries.