High-speed and precise packaging machine

Abstract

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.

Description

technical field [0001] The invention relates to material dispensing equipment, in particular to a high-speed and precise dispensing machine. Background technique [0002] In production and life, it is often necessary to subpackage powdered materials, such as industrial raw materials, food, medicine, etc. The sub-packaging of materials is done by sub-packaging equipment. During the sub-packaging process, materials are usually quantitatively sub-packaged according to weight. Therefore, the weight accuracy and stability of sub-packaging are important indicators for evaluating the performance of sub-packaging equipment, especially In the field of drug production, it is not only necessary to strictly control the manufacturing process of drugs to produce drugs of qualified quality, but also to ensure that the weight of drugs after sub-packaging and bagging meets the regulations due to strict requirements on the dosage of drugs. the accuracy. [0003] In the existing sub-packagin...

AI Technical Summary

Problems solved by technology

For example, "a weighing device" disclosed in the utility model with the authorized announcement number CN 204730919 U, this "weighing method" sub-packaging equipment has obtained higher weight accuracy, but there are still shortcomings: this sub-packaging The equipment only has one screw rod, so it is difficult to balance the efficiency and accuracy of weighing at the same time. That is to say, when the screw rod has larger blades, the weighing efficiency is high (fast feeding), but it is difficult to accurately When pushing out a small amount of material, it is difficult to accurately control the conveying amount of the material at the last moment of sub-packaging and weighing; on the contrary, when the screw rod with smaller blades is used, it can be pushed out more accurately. materials, but the efficiency of weighing is relatively low

However, there are still following deficiencies: when the device is working, it weighs while conveying the material. After the weighing is completed, the material completes a subpackage. Since the conveying of the material in the weighing process needs to go through two stages of fast and slow, it is necessary to complete a weighing The packaging time is long and the production efficiency is not high

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