Use method for high-accuracy weigher

Abstract

The invention discloses a use method for a high-accuracy weigher. The high-accuracy weigher comprises a rack, a feeding bin and a controller, wherein a track conveying mechanism is arranged below an outlet; a material jumping prevention assembly is arranged on a conveying track; a packaging bag clamping frame is arranged on the outer wall of a material guide plate; a weighing sensor is arranged on the packaging bag clamping frame; an air suction port is formed in the inner wall of the material guide plate; and an air suction fan is connected to the air suction port. According to the invention, a feeding speed is flexibly adjusted through controlling a speed of a drive motor; the material jumping prevention assembly is capable of preventing articles from falling onto the conveying track and then causing the cases of jumping or rolling and the like; the weighing sensor is arranged on the packaging bag clamping frame, and used for directly giving a weight of a packaging bag, thus a weighing hopper of the traditional equipment is omitted, and a weighing accuracy cannot be influenced even if dust is generated when the materials enter into the packaging bag from the feeding bin; and compared with the prior art, the high-accuracy weigher disclosed by the invention has the advantages of being simple and compact in structure, high in weighing accuracy, fast in speed, less in dust, and stable and reliable in running.

Description

[0001] This application is a divisional application of a Chinese invention patent application filed on April 6, 2014 with the application number 201410137241.0 and the invention name is a high-precision weighing device. 【Technical field】 [0002] The invention relates to the technical field of weighing tools, in particular to a high-precision weighing device. 【Background technique】 [0003] The existing material packaging scales are all equipped with a weighing hopper. After setting the weight of a single bag on the control instrument, the material falls into the weighing hopper from the finished product silo through the feeding mechanism, and is installed next to the weighing hopper. There is a load cell, and the control system is fixed on the frame next to it, and the total weight value of the weighing bucket, bag gripper, and packaging bag with materials is fed back to the control system in real time, and the value is displayed by the controller. The equipment has the dis...

AI Technical Summary

Problems solved by technology

[0003] The existing material packaging scales are all equipped with a weighing hopper. After setting the weight of a single bag on the control instrument, the material falls into the weighing hopper from the finished product silo through the feeding mechanism, and is installed next to the weighing hopper. There is a load cell, and the control system is fixed on the frame next to it, and the total weight value of the weighing bucket, bag gripper, and packaging bag with materials is fed back to the control system in real time, and the value is displayed by the controller. The equipment has the disadvantages of complex structure and slow speed, and when the material is introduced from the weighing hopper into the packaging bag, the dust generated will seriously affect the actual weight of the material in the packaging bag, and the weighing accuracy is low. There are three types of feeding methods: electromagnetic vibration feeding, screw feeding and self-flow feeding. During the feeding process, it is easy to cause more dust, and the stability of the material flow is difficult to control. There is also a self-flow type After feeding, the crawler is used to convey the material. However, when the material is a particle with good fluidity, such as beans, corn, wheat, rice, rice, etc., the item is easy to jump on the conveyor belt, which affects the feeding efficiency and weighing. precision

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