12results about How to "Small weight error" patented technology

The utility model belongs to the field of industrial casting, particularly relates to an accurate sand adding device for a horizontal molding line, and provides the following scheme aiming at the problems that a conveying belt is unstable in feeding during feeding and molding sand is inconvenient to discharge when the feeding is excessive in the prior art: the accurate sand adding device comprises a rack and a hopper arranged at the top of the rack, a plurality of weighing sensors are fixedly mounted between the bottom of the hopper and the top of the rack, one side of the hopper is fixedly connected with a through mounting pipe, one end of the mounting pipe is communicated with the hopper, the bottom of the mounting pipe is fixedly connected with a discharging pipe for discharging raw materials, and a through driving shaft is rotationally connected between the two ends of the mounting pipe; according to the molding sand feeding device, excessive molding sand in the hopper is discharged through the feeding blades, so that the weight error of the molding sand in the hopper is reduced, the sand feeding accuracy is improved, meanwhile, the hopper can vibrate, the molding sand is prevented from staying and being attached to the interior of the hopper, and the feeding accuracy is further improved.

This utility model relates to the field of PET cold-pressed sheet processing technology, and discloses a PET cold-pressed sheet stacking and counting device, comprising: a frame, including a frame plate and several support legs, the support legs being fixedly disposed below the frame plate; a counting component, including a weighing scale and a display screen, the weighing scale being fixedly disposed above the frame plate, the display screen being fixedly disposed on the front side of the frame plate, and a control board electrically connected to the weighing scale being built-in; an auxiliary packaging component, including a strapping groove and positioning rods, the strapping groove being disposed on the frame plate, and the positioning rods being fixedly disposed at the four corners above the frame plate; and a compaction mechanism, including a pressure plate and a support, the support being fixedly disposed on the rear side of the frame plate, with a movable plate rotatably connected to its upper end, one end of the movable plate being driven to rotate by a stepper motor fixedly disposed on the support, and the pressure plate being disposed below the extended end of the movable plate and being driven to rise and fall by a cylinder fixedly disposed on the movable plate. The advantages of this utility model are: accurate counting, small error, and easy packaging after counting.

The present invention relates to an automatic control method, device, equipment and medium of an intelligent packaging scale, and belongs to the field of material packaging and weighing. The method includes obtaining a switch signal of a feed port; obtaining the mass of a packaging container, and when the mass of the packaging container is equal to the preset mass of the packaging container, sending a material conveyor belt drive instruction based on the total driving power; dividing the vibration area of ​​the material conveyor belt, and vibrating the vibration area of ​​the material conveyor belt during transmission; weighing the packaging container at a first weighing point to obtain a first mass, and obtaining first mass error information by calculating the first mass error; weighing the packaging container again at a second weighing point to obtain a second mass and calculate the second mass difference, and outputting a secondary increase or decrease material instruction according to the second mass difference; the packaging container is automatically packaged and automatically labeled at the packaging point. The present invention realizes the scientific and reasonable use of intelligent packaging scales for weighing and packaging materials, significantly reduces errors in the weighing process and improves work efficiency.

The utility model relates to the technical field of ingredient weighing equipment. The utility model relates to a batching scale without flexible connection, and aims to provide a batching scale without flexible connection, which does not need to be provided with flexible connection so as to avoid frequent replacement of flexible connection, save labor cost, improve weighing accuracy and stability and reduce dust pollution to the environment at the same time. The technical scheme is as follows: the batching scale without flexible connection comprises a scale hopper with a discharge valve at the bottom; the electronic scale is characterized by further comprising a shell arranged on the periphery of the scale hopper, a supporting piece fixed on the shell and a plurality of groups of weighing systems which are arranged on the supporting piece and are used for weighing the scale hopper, the scale hopper is hung on the plurality of groups of weighing systems; an upper cover is arranged at the top of the shell; a feeding hole is formed in the middle of the upper cover; and the bottom of the shell is lower than the discharge valve and is provided with a discharge port.

The invention relates to the technical field of aircraft vibration experiments, and discloses aircraft ground resonance test equipment with visual entrance, comprising a fixing device; the fixing device comprises a rack, a lateral supporting frame, a forward supporting frame and a ground fixing mechanism. A lifting device; the lifting device is arranged in the rack and comprises lead screw lifting mechanisms, guide mechanisms and stroke limiting mechanisms, wherein the lead screw lifting mechanisms are installed at the four corners of the rack. A driving device; the driving device is arranged below the rack; the air spring device is arranged on the supporting plate; and the supporting device is arranged above the air spring device. According to the fixing device, the foldable extra supporting frame design is adopted, the lateral supporting frame prevents the situation that the aircraft is subjected to uneven lateral stress and rolls over together with the device, and the forward supporting frame prevents the situation that the aircraft is subjected to uneven forward and backward stress and rolls over together with the device.

This utility model relates to a storage bin with impulse control based on a discharging component, belonging to the technical field of storage equipment. The storage component includes a bin body with an inlet at the top and an outlet at the bottom, the outlet being a cylindrical outlet. The cylindrical outlet defines a first direction and a second direction, with the axial direction of the cylindrical outlet being the second direction and the radial direction being the first direction. It controls material feeding through the coordinated operation of two discharging gates located at the bottom of the outlet. One gate has a larger shielding area than the other, allowing for rapid discharging, while the smaller gate partially closes at the end of the discharging process to reduce the flow area, thereby precisely controlling and reducing the material impulse and improving weighing accuracy. Furthermore, this utility model uses a cylinder-driven linkage mechanism to move the discharging plate, resulting in high stability of the mechanical transmission structure.

The utility model discloses a raw material weighing device for concrete retarder production relates to weighing device technical field, the utility model discloses a support frame, the support frame top fixedly connected has and places the bucket, the support frame bottom is provided with the feeding box, the feeding box top is provided with the weighing assembly, the weighing assembly is including the weighing box of fixed connection in the feeding box top, the weighing board of fixed connection in the weighing box inside. The utility model discloses a dynamic weighing sensor and the closed loop control of automatic control valve realize accurate dosing, and the raw material is from the placement barrel and enters the weighing box through the discharge pipe, and the flow sensor monitors the dosing amount, and the dynamic weighing sensor synchronously gathers weight data. When the weight reaches the set value, the automatic control valve closes immediately, and then the first hydraulic cylinder drives the push plate and pushes the raw material into the falling pipe, and the closed loop control reduces the weighing error, avoids the manual operation deviation, ensures the retarder proportioning accuracy, and improves the product performance consistency.

The invention discloses a control system and method for dispensing Chinese herbal medicine slices, and specifically relates to the technical field of dispensing Chinese herbal medicine slices; the control system comprises a data acquisition module, a feature extraction module, an accuracy prediction module, an environmental compensation factor adjustment module and a dosage control module; by real-time acquisition of Chinese herbal medicine slice weighing data and environmental data, and preprocessing and feature extraction, a data prediction model based on weighing deviation characteristics and air humidity fluctuation characteristics is constructed, and the accuracy of weighing results can be accurately predicted; in combination with the hygroscopicity and volatility data of medicinal materials, the environmental compensation factor is dynamically adjusted, the weighing results are corrected and the errors are analyzed, and the dosage of medicinal materials is accurately controlled, thereby significantly improving the accuracy and stability of the weighing results, ensuring the accuracy of the drug dosage, and ultimately ensuring the safety and efficacy of the patient's medication.

The fertilizer processing quantitative packing device comprises a mounting plate, a scattering barrel is mounted on the mounting plate through a supporting frame, an air conveying pipe is arranged on the upper portion of the rear side of the scattering barrel in a communicating mode, the air conveying pipe is used for being connected with a discharging pipeline of an external pneumatic conveyor, and a top cover is mounted at the top of the scattering barrel; the two sides of the top cover are provided with material level sensors for measuring the height of the fertilizer in the scattering barrel; and a control mechanism is arranged on one side of the mounting plate. The control mechanism combines monitoring of accumulated weight of flow information input by the microwave solid flow meter in real time and monitoring of accumulated weight of weight information input by the weighing and lowering mechanism in real time, pre-amount monitoring analysis is carried out, a mode of obtaining pre-amount preferentially is used as a control signal, and the control and lowering mechanism is controlled step by step to adjust the flow of the falling fertilizer. The weight error caused by quantitative filling of the urea granulated fertilizer by the woven bag due to signal feedback time is effectively reduced, so that the filling weight error is effectively reduced.

The utility model belongs to the technical field of moxa stick rolling equipment, and provides an accurate metering and discharging mechanism of a strip rolling machine. Comprising a stock bin, a controller, a first motor, a second motor and an air pump. A leaf stirring roller is arranged in the stock bin, a discharging port is formed in the lower end of the stock bin, a large material stirring roller and a small material stirring roller are arranged in the discharging port side by side, the leaf stirring roller and the large material stirring roller are both driven by a first motor, and the small material stirring roller is driven by a second motor. A weighing channel is arranged below a discharging port of the stock bin, the upper portion of the weighing channel is communicated with the discharging port, a tray is arranged at the bottom of the weighing channel, and a weighing sensor is arranged at the bottom of the tray and electrically connected with a controller. A material pushing plate is arranged at the front end of the material weighing channel and driven by a material pushing air cylinder, a material pressing plate is arranged above the rear section of the material weighing channel and located on the outer side of the material bin and driven by a material pressing air cylinder, and a baffle is arranged at the rear end of the material weighing channel and driven by a baffle air cylinder. Compared with the prior art, needed moxa is weighed and counted through the weighing sensor, and it is guaranteed that the weight error of rolled moxa sticks is very small, and the weight is accurate.

The present invention relates to the technical field of graphite packaging equipment, and specifically to a packaging device for graphite production, including: a conveyor, a ring rail conveyor line, a bag dispensing device, a quantitative unloading device, a vacuum packaging device, and a first clamping component. The present invention realizes full automatic control through the cooperation of the conveyor, the ring rail conveyor line, the bag dispensing device, the unloading device, the vacuum packaging device, and the first clamping component, replacing manual handling and bagging operations, saving time, reducing costs, and improving work efficiency. In addition, the present invention does not require workers to manually open the mouth, and realizes automatic weighing and bagging, thereby improving the efficiency of graphite weighing and bagging, and avoiding the impact of graphite powder on the health of workers during the traditional bag opening and weighing process.