A self-locking weighing bucket mechanism

Abstract

The invention discloses a self-locking weighing hopper mechanism. The mechanism comprises a hopper body, and weighing hopper supports are respectively disposed on two sides of the hopper body. The weighing hopper supports are respectively rotatably provided with L-shaped rotation arms. Lower ends of the L-shaped rotation arms are fixedly connected with a hopper door under the L-shaped rotation arms. A middle part of a lower end surface of the hopper door is connected with an upper end of the rotation arm below the hopper door. The rotation arm comprises a pull rod, a cross bar, a connecting lever, and a connecting rod. An end of the pull rod is connected with a connecting and fixing ear which is disposed on the middle part of the lower end surface of the hopper door. Middle parts of the connecting levers are respectively rotatably installed on lower ends of the weighing hopper supports. A middle part of the connecting rods is connected with an end of a motor rotation arm which is driven by a motor. Rear ends of the connecting levers are respectively provided with tension springs. Upper ends of the tension springs are respectively installed on the weighing hopper supports on corresponding sides of the tension springs. The weighing hopper mechanism ensures opening and closing speed of the weighing hopper door and stability of the whole weighing mechanism, and metering precision is improved, and meanwhile leakage circumstances are prevented.

Description

technical field [0001] The invention relates to a self-locking weighing bucket mechanism, which is mainly aimed at the occasions requiring high specific gravity materials and fast weighing speed. Background technique [0002] The structure of the weighing hopper in the prior art is simple. In the case of high specific gravity materials and fast weighing speed, in order to prevent the material door from being opened, generally the structure of the counterweight block is added to prevent the material from being washed open and weighed. The bucket door, in the case of leakage, has a complex structure. The overall structure of the weighing bucket plus the structure of the counterweight will lead to a large load of the load cell during the weighing process, low weighing accuracy, and the opening and closing of the weighing bucket door. The speed and the stability of the overall weighing mechanism are not easy to control and can meet the requirements of use. Contents of the inve...

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Problems solved by technology

[0002] The structure of the weighing hopper in the prior art is simple. In the case of high specific gravity materials and fast weighing speed, in order to prevent the material door from being opened, generally the structure of the counterweight block is added to prevent the material from being washed open and weighed. The bucket door, in the case of leakage, has a complex structure. The overall structure of the weighing bucket plus the structure of the counterweight will lead to a large load of the load cell during the weighing process, low weighing accuracy, and the opening and closing of the weighing bucket door. The speed and the stability of the overall weighing mechanism are not easy to control and can meet the requirements of use

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