54results about How to "Reduce weighing errors" patented technology

A mailing machine is provided, that when operating in a differential weighing mode, can detect if a user has replaced one or more mail pieces that may have been inadvertently removed at the same time back onto the scale. If the mailing machine detects such replacement within a predetermined time period after the scale has stabilized, the weight calculated for the mail piece can be reduced by the amount added back to the scale, or alternatively the user could be requested to confirm that multiple pieces were inadvertently removed from the scale at the same time and the user is trying to correct that error and a new weight determined.

The invention discloses a food precise quantifying and packing production line, and relates to the field of packing equipment. The food precise quantifying and packing production line comprises a guide module, a cutting module, a feeding module, a quantifying and weighing module and a packing module arranged on a T-shaped base plate in sequence from left to right. Through arrangement of the guidemodule, the cutting module, the feeding module, the quantifying and weighing module and the packing module, the food guidance, cutting, feeding, quantification, weighing and packing are realized; through arrangement of upper and lower layers of feeding mechanisms and driving mechanisms, diced foods and broken foods can be precisely weighed and poured to the packing module for packing according tothe weight ratio of 9: 1 to reduce weighing errors; and according to different product packing gram precision requirements, and through adjustment of the starting sequence of a first motor, a second motor, a third motor, a fourth motor, a fifth motor, a cylinder base, a counter in a weighing hopper and each electric appliance element of a cylinder, the weight ratio of the diced foods and the broken foods is adjusted.

The invention discloses a novel multi-platform-surface dynamic weighing system. The novel multi-platform-surface dynamic weighing system comprises a vehicle separator, a tire identifier, a scale body, signal acquisition equipment, signal processing equipment, a first scale platform, a second scale platform and a third scale platform, wherein the first scale platform, the second scale platform and the third scale platform are sequentially arranged abreast along the driving direction; the vehicle separator is used for separating vehicles; the tire identifier is arranged in front of the first scale platform or behind the third scale platform, and the vehicles pass through the tire identifier and the vehicle separator. Due to the adoption of the structure in which the three scale platforms are arranged abreast, the length of the three-scale-platform weighing system is increased compared with a single-scale-platform weighing system and a double-scale-platform weighing system, the staying time of the vehicles on the scale platforms is prolonged, and the influence on weighing errors caused by non-standard vehicle passing behaviors such as S-type passing of the vehicles, jumping of the vehicles over the scale platforms and high-speed passing of the vehicles through the scale platforms can be eliminated.

The invention provides a dynamic weighing filtering method and system thereof. The dynamic weighing filtering method comprises the following steps that step S1, continuous and equal-period sampling isperformed on the object weight on a conveying belt; step S2, the sampling result of the object weight is filtered so as to obtain the filtered weight value; step S3, the weight change slope is calculated according to the filtered weight value; step S4, the weighing state of the object is judged by the weight change slope; and step S5, whether a low-pass filter is applied to perform filtering is determined according to the weighing state and the final weight result is outputted. The movement characteristics of the object on the conveying belt can be met and the vibration noise and the weighingerror caused by movement of the object on the conveying belt can be effectively reduced; and the filtering process is fast in speed and high in accuracy, filtering is smooth and transition is stableso that the dynamic weighing process is enabled to be more stable and reliable and the accuracy and the working efficiency of dynamic weighing can be greatly enhanced.

The invention provides an infusion control system and method for adjusting an infusion amount based on a urine output. The infusion control system comprises a microprocessor unit, an infusion pump, a urine volume and urine flow velocity measuring unit, an infusion amount and infusion velocity measuring unit, an operation monitoring module, a man-machine interface and the like. The infusion pump acts on an infusion tube for controlling the infusion velocity; the microprocessor unit receives a measurement result from the urine velocity measuring unit, controls the infusion pump to adjust the infusion velocity according to the urine velocity in accordance with a body fluid intake and output balance principle; the urine volume and urine flow velocity measuring unit is applied to a urine bag and used for measuring a weight GN of the urine bag in real time and calculating to obtain a generated urine flow velocity VN; and the operation monitoring module is responsible for monitoring if the system works normally, as well as alarming and triggering protective actions in case of anomalies. By adopting the balanced infusion control system and method provided by the invention, a balance between the infusion amount and the urine output can be guaranteed.

The invention discloses a dynamic weighing and sorting integrated device for logistics. The dynamic weighing and sorting integrated device for the logistics comprises a bottom plate, trapezoidal side plates are symmetrically welded to the top end of the bottom plate, the outer sides of first sleeve rolls are sleeved with a feeding conveyer belt in a transmission manner, a protective shell is installed on the portion, corresponding to the corresponding sides of the trapezoidal side plates, of the top end of the bottom plate, a weighing conveyer belt is connected to the outer sides of two second sleeve rolls in a transmission manner, and auxiliary supporting plates are welded to the top ends of fixing vertical plates. The dynamic weighing and sorting integrated device for the logistics is scientific, reasonable and safe and convenient to use; and the feeding conveyer belt, the weighing conveyer belt, the weighing conveyer belt and a sorting carrying plate are smoothly connected through the auxiliary supporting plates, jolting generated through object conveying is reduced, objects can be stably moved in the conveying process, the jamming or jolting and falling condition can not occur, therefore, the purpose of combining feeding, dynamic weighing and logistics sorting together is achieved, a user can conveniently and quickly put, weigh and sort the objects, weighing and sorting integrated operation is achieved, and the device can be used more conveniently.

A sightseeing elevator cage comprises a cage and a frame, wherein the cage is arranged on the bottom frame of the frame, an elastic weighing device is arranged between the cage and the bottom frame, and an outer cover is arranged on the frame at the rear wall of the cage; the frame comprises the bottom frame, an upright post and a mounting frame, wherein the bottom frame and the mounting frame are rigidly connected through the upright post; the outer cover is fixed on the mounting frame and the bottom frame; and the outer cover is connected with the mounting frame and the bottom frame through connecting pieces. Compared with the prior art, the sightseeing elevator cage has the advantages of simple and convenient mounting, field mounting quality improvement, high mounting strength, good stability, capability of meeting the requirements on installation of the complex outer cover, reduction in weight of the sightseeing side of the cage, capability of balancing the compression amount of weighing rubber, weighing error reduction and good weighing effect.

The invention discloses a high-speed and precise packaging machine. The machine comprises weighing units and a packaging unit, wherein the weighing units are multiple; each weighing unit comprises a feeding mechanism and a weighing mechanism, the feeding mechanism comprises a packaging hopper and a plurality of spiral feeding rods with different sizes, the weighing mechanism comprises weighing hoppers and a weighing module, and the weighing hoppers are arranged below a feeding opening of the feeding mechanism; the packaging unit is positioned below the weighing units and comprises material bags used for packaging materials; and middle transition hoppers are arranged between the weighing hoppers and the material bags, discharging openings of the multiple weighing hoppers extend into upper openings of the middle transition hoppers, and discharging controlling mechanisms for controlling opening and closing of the discharging openings are arranged on the weighing hoppers. According to themachine, the precision, the accuracy, the stability and the production efficiency of material packaging are greatly improved, so that huge social benefits are brought to multiple aspects such as energy conservation and consumption reduction, manpower and material resource saving, environmental protection and safety.

A vacuum packer for filling valve bags employs a load cell-based scale mechanism located within the vacuum chamber. An interior packer front plate is supported from the back, inner wall of the chamber on four flexure spring check straps. The front plate is supported from a single load cell mounted on the back, interior wall of the vacuum chamber. Side bag retention plates, end retention plates and the lower bag support saddle are mounted to the packer front plate. A flexible connection is furnished between the back of the filling spout and the interior back wall of the vacuum chamber. All other required piping is made directly to the back wall of the chamber, thus removing them from the scale mechanism entirely.

The invention provides a washing machine control method and device, electronic equipment and a storage medium, and belongs to the technical field of household appliances. The control method includes the following steps: obtaining a sinking height of an outer drum of a washing machine, wherein the sinking height is collected after washing is placed in the outer drum of the washing machine; determining a target weight corresponding to the sinking height according to a preset corresponding relation between the sinking height and the weight of the washing; determining target water inflow based on the target weight; and adding water to the washing machine according to the target water inflow. Namely, the weight of the washing is determined according to the sinking height of the outer drum of the washing machine after the washing is placed, and then the water inflow is determined according to the weight of the washing, so that a weighing result of the washing is not affected by the material of the washing, motor assembly and the like, the weighing error is reduced, and the weighing result is more accurate.

The invention discloses an automatic weighing and labeling device for a steel wire roll. The automatic weighing and labeling device for the steel wire roll comprises a conveying device, a weighing device, a label printing machine and an output device which are all sequentially arranged along an assembly line, wherein the weighing device is used for weighing the conveyed product, the label printingmachine pastes a weight label onto the weighed product, and the output device outputs and stores the labeled product. The weighing device comprises a weighing rack, main transmission rollers erectedon the two sides of the input end of a weighing rack and auxiliary transmission rollers erected on the two sides of the output end of the weighing rack. The main transmission rollers are provided withmain transmission wheels at intervals, the auxiliary transmission rollers are provided with auxiliary transmission wheels at intervals. The main transmission wheels and the auxiliary transmission wheels are correspondingly provided with and wound by belts or chains. The main transmission rollers are in transmission connection with a transmission device. A weighing lifting device is arranged belowthe weighing rack. The weighing lifting device comprises lifting bases which are arranged below the belts through lifting drive device in an ascending or descending manner, and the lifting bases areprovided with weighing sensors.

The invention discloses an automatic cotton core weighing device which comprises a cotton storage box and a cotton feeding box. The cotton storage box is in an inverted trapezoid shape, the upper portion of the cotton storage box is opened, and the cotton feeding box is arranged over the cotton storage box. The automatic cotton core weighing device is characterized in that a movable box bottom is arranged on the lower portion of the cotton storage box, the two sides of the movable box bottom are connected with guide rail devices, the movable box bottom can make front-back movement in the horizontal direction along guide rails, a weighing platform is further arranged above the movable box bottom, and a weighing sensor is fixed beneath the weighing platform. Consequently, weighing is more accurate, weighing errors are smaller than 1.5%, usage of raw materials can be well controlled, and finally product consistency is better guaranteed.

The invention provides a magnetic suspension weighing system and a control method thereof. The magnetic suspension weighing system comprises a box body; a weighing mechanism is mounted at the top of the box body, the weighing mechanism comprises a magnetic suspension assembly, a suspended object and an object containing disc, and the object containing disc is connected to the lower portion of the suspended object; the magnetic suspension assembly comprises a photoelectric displacement sensor, a circuit board, an electromagnetic coil and a display screen; the suspended matter is located under the electromagnetic coil. The photoelectric displacement sensor is used for measuring the distance between the suspended matter and the electromagnetic coil; and the circuit board is respectively connected with the photoelectric displacement sensor and the electromagnetic coil. According to the invention, the current on the electromagnetic coil can be automatically adjusted according to objects with different masses added in the containing tray, and the changing current accurately corresponds to the mass of the object, so that the purpose of indirect weight measurement is achieved; according to the weighing system, the gravity of an object is balanced through magnetic force, mechanical friction of a scale body of a traditional electronic scale is eliminated, and the measurement precision is improved.

The invention relates to a dynamic vehicle weighing device and a weighing method thereof. The dynamic vehicle weighing device includes a weighing sensor and a processing unit. The weighing sensor is used for obtaining a deformation signal generated when a vehicle acts on the top road structure of the weighing sensor in the advancing process. The processing unit is used for determining the weight of the vehicle according to the deformation signal. According to the invention, the deformation signal of the top road structure of the weighing sensor is sensed by using the weighing sensor, and the weight of the vehicle can be determined by directly using the deformation signal. In addition, the weighing sensor is embedded in the road foundation, compared with traditional weighing equipment, the service life of the weighing sensor is prolonged, and meanwhile the weighing precision is improved.

The invention discloses a device for food accurate quantitative weighing and packaging, and relates to the field of packaging equipment. The device comprises a material guide assembly, a cutting assembly, a material conveying assembly and a quantitative weighing assembly. The material guide assembly, the cutting assembly, the material conveying assembly and the quantitative weighing assembly are arranged on a base plate in sequence from left to right. According to the device, due to the fact that the material guide assembly, the cutting assembly, the material conveying assembly and the quantitative weighing assembly are arranged, the material guide operation, the cutting operation, the material conveying operation and the quantitative weighing operation of the food are achieved. Material conveying mechanisms on the upper layer and the lower layer and a driving mechanism are arranged, the ascent and the descent of a first gear rod and a second gear rod are simultaneously controlled, theopening and closing operation of a massive food baffle in a massive food discharging outlet is controlled, the closing and opening operation of a crushed food baffle in a crushed food discharging outlet is controlled at the same time, and therefore the accurate weighing operation can be conducted according to the requirement that the weight ratio of the massive food to the crushed food is 9:1, the food can be poured into a mechanism for the next packaging working procedure, and the weighing error is reduced.

The invention relates to the technical field of ceramic raw material machining, and particularly discloses a static metering and feeding system for ceramic raw materials. The static metering and feeding system comprises a supporting frame and further comprises a storage hopper and a weighing hopper which are arranged on the supporting frame. The storage hopper is located above the weighing hopper,a conveying belt is arranged below the weighing hopper, and an arch breaking assembly is arranged in the storage hopper. One end of the arch breaking assembly is exposed out of the storage hopper andis connected with a drive assembly. A seal unloading belt is arranged below the storage hopper. The weighing hopper and a weighing belt are arranged below the seal unloading belt. A weighing sensingassembly composed of three weighing sensors is arranged below the weighing belt, the seal unloading belt is used for weighing the weight of raw materials, and when the seal unloading belt stops material supply, weighing starts. According to the weight value preset by a controller and the weight of last weighing, the running time of the seal unloading belt is adjusted, the weight, weighed by the seal unloading belt, of raw materials next time is adjusted, more-returning and few-supplementing metering is achieved, and weighing errors are reduced.

The invention relates to the technical field of fire extinguishing agent preparation, in particular to an aqueous film-forming foam fire extinguishing agent and a preparation method thereof, and is characterized in that the aqueous film-forming foam fire extinguishing agent comprises the following components in percentage by weight: 5-15% of a combined hydrocarbon surfactant, 5-20% of a PFOS(Perfluorooctane sulfonates)-free hydrocarbon surfactant, 15-25% of a foaming agent, 0.3-0.9% of protection colloid, 5-70% of urea, 5%-8% of a foam stabilizer, 5%-15% of an anti-freezing agent, 3%-5% of a solubilizer, 3%-10% of a flame retardant and 20%-40% of water. According to the present invention, the PFOS(Perfluorooctane sulfonates)-free fluorocarbon surfactant is used, and the fire extinguishing agent can be self-degraded in a certain period, such that the high environmental protection property is provided, the environmental pollution is significantly reduced, and the excellent performance is provided, and the product obtained through the preparation method has characteristics of uniform mixing. The raw material proportioning accuracy is high, and the phenomenon of aggregation and caking is avoided during mixing and stirring.

The invention discloses an unbalance loading error correction method and system. The correction method comprises the following steps of obtaining weighing data when a weight is loaded at different positions of a weighing platform of weighing equipment, calculating each piece of weighing data and the average value of the weighing data or the difference value of the weights, when the maximum value in the absolute values of the difference values exceeds a preset threshold value, calculating and updating a sensor correction coefficient, and updating the weighing data, and repeating the steps until the absolute values of all the difference values are smaller than the threshold value. The correction system comprises processing equipment and communication equipment, and the processing equipment and the communication equipment execute the correction method. According to the unbalance loading error correction method, the weighing unbalance loading error is directly processed, so that the correction coefficient of the sensor in the weighing equipment is obtained through calculation and is substituted into the weighing data subjected to unbalance loading correction, the minimum weighing error of the weighing data is ensured, and more accurate unbalance loading error correction is realized.

The invention discloses a reinforcing device for dynamic weighing of a vehicle and a using method, and belongs to the technical field of weighing. The reinforcing device for dynamic weighing of a vehicle comprises a cement base, a containing groove is formed in the cement base, a weighing assembly is arranged in the containing groove, a gap is formed between the weighing assembly and the inner wall of the containing groove in the driving direction, the weighing assembly comprises a plurality of weighing bodies, the outer walls of the weighing bodies are connected with junction boxes, and the tops of the weighing bodies are connected with weighing plates. A connection reinforcing mechanism is connected between every two adjacent weighing plates, the bottom wall of the containing groove is fixedly connected with a supporting seat, and a pressure sensor is connected between the supporting seat and the weighing body. The multiple weighing plates are effectively, rapidly and fixedly connected through the connection reinforcing mechanisms, the situations that disassembly and assembly are inconvenient due to bolt connection and the weighing plates shake due to looseness in the later period are avoided, a weighed vehicle is decelerated through the deceleration strip, the accuracy of dynamic weighing is improved, and the practical effect is improved.