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Chute scale

A technology of chute and sliding direction, which is applied in the field of weight weighing devices, and can solve the problems of large weighing errors

Active Publication Date: 2016-01-13
SHANXI XINYUAN AUTOMATIC INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a chute scale, which solves the problem that the weighing error of the existing measuring device is generally too large when the bulk material is transported by the chute.

Method used

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Experimental program
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Effect test

Embodiment 1

[0016] A chute scale, comprising a hopper 1, a bulk material 2 is arranged in the hopper 1, a fixed chute 3 is arranged directly below the hopper 1, and a weighing chute 6 is connected to the end of the fixed chute 3. An impact plate 7 is arranged in front of the outlet of the weighing chute 6, a first load cell 8 is arranged on the impact plate 7, and a discharge port 9 is arranged between the impact plate 7 and the end of the weighing chute 6 A second load cell 4 is arranged on the weighing chute 6, and the second load cell 4 and the first load cell 8 are electrically connected to the single-chip microcomputer 5 respectively.

[0017] The angle α between the impact surface of the impact plate 7 and the sliding direction of the bulk material 2 satisfies the following relationship: 10°≦α≦100°.

[0018] The single-chip microcomputer 5 is provided with a program for calculating the signals from the first load cell 8 and the second load cell 4. By calibrating the weighing coeffic...

Embodiment 2

[0021] A chute scale, comprising a hopper 1, a bulk material 2 is arranged in the hopper 1, a fixed chute 3 is arranged directly below the hopper 1, and a weighing chute 3 is connected to the end of the fixed chute 3. The end of the weighing chute 3 is connected with a discharge chute 11, a plurality of small impact plates 12 are arranged parallel to each other at intervals at the end of the discharge chute 11, and a first load cell 8 is arranged on the small impact plate 12, A second load cell 4 is arranged on the weighing chute 6 , and both the second load cell 4 and the first load cell 8 are electrically connected to the single-chip microcomputer 5 .

[0022] The angle β between the impact surface of the small impact plate 12 and the sliding direction of the bulk material 2 satisfies the following relationship: 10°≦β≦100°.

[0023] The single-chip microcomputer 5 is provided with the program that carries out the average value operation to the signal that the first load cell...

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Abstract

The present invention relates to a sliding groove scale, which solves the problem that an existing measurement device is universally large in weighing error when being used for measuring bulk materials conveyed through a sliding groove. A sliding groove scale, comprising a hopper (1), wherein bulk materials (2) are arranged in the hopper (1), a fixed sliding groove (3) is arranged under the hopper (1), a gravity sliding groove (6) is connected to the tail end of the fixed sliding groove (3), an impact plate (7) is arranged in the front of a discharge port of the gravity sliding groove (6), an impact sensor (8) is arranged on the impact plate (7), a feed port (9) is arranged between the impact plate (7) and the tail end of the gravity sliding groove (6), a weighting sensor (4) is arranged on the gravity sliding groove (6), and the weighting sensor (4) and the impact sensor (8) are both respectively and electrically connected to a single chip microcomputer (5). The present invention is particularly suitable for performing high accuracy measurement on uneven bulk materials.

Description

technical field [0001] The invention relates to a weighing device, in particular to a weighing device for measuring the weight of bulk materials conveyed in a conveying trough. Background technique [0002] In the prior art, when measuring the bulk materials conveyed in the conveying trough, a punching plate flowmeter is generally used. The punching plate flowmeter is composed of a detection plate, an impact sensor and a measuring instrument. Its working principle is: when the bulk material impacts the detection plate along the chute at a certain speed and angle, the direction of the bulk material changes under the action of the detection plate, and at the same time, the bulk material produces a force on the detection plate, the force There is a component force in the horizontal direction and vertical direction, and there is a certain relationship between the force and the flow rate of the material. By measuring the magnitude of the force, the flow rate of the bulk material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G11/00
CPCG01G11/00
Inventor 梁跃武梅雪峰陈守君
Owner SHANXI XINYUAN AUTOMATIC INSTR