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Combination metering apparatus

A weighing device and weighing technology, applied in the direction of measuring devices, weighing, instruments, etc., to avoid damage

Inactive Publication Date: 2006-09-06
ISHIDA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it may happen that all hopper doors are closed at the same time, thereby frightening the operator

Method used

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  • Combination metering apparatus
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Examples

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no. 2 example

[0109] Fig. 8 shows a second embodiment of the invention.

[0110] In this second embodiment, unlike the aforementioned first embodiment, a current detector 39 (another example of a detection device) is connected to a single power supply device 37 instead of a temperature detector. The current detector 39 is operable to detect the current value of the power supply device 37 and then supply it to the microcomputer 30, and the CPU 31 calculates an accumulated value of the driving current by integrating the driving current value.

[0111] Other structural features are similar to those in the first embodiment, and similar components are denoted by similar symbols, while for the sake of simplicity, the detailed description and drawings thereof are omitted.

[0112] During unloading, when the doors 5i and 8i are fully opened, the CPU 31 compares the driving current accumulated value with a predetermined threshold, and starts the closing operation of the doors 5i and 8i if the accumula...

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Abstract

A combination weighing apparatus includes a plurality of hoppers each having a gate and being capable of accommodating an article and discharging the article therefrom upon opening of the respective gate, a drive device for selectively opening and closing the gate and maintaining the gate in an opened position when in a conducting state, and a control device for controlling the drive device and having a weighing mode, in which the gates of the hoppers selected for combination are opened to combine the respective articles, and a discharge mode in which the articles within the hoppers are discharged while the gates are maintained in the opened position. The control device performs a control of closing the gate when during the discharge mode the opening of the gate lasts a predetermined length of time. The control device also performs a control of setting a closing duration of the gate during the discharge mode to a value longer than a closing duration of the gate during the weighing mode.

Description

[0001] This application is a divisional application of the application dated December 13, 2002, the application number is 02156315.2, and the invention name is "combined weighing device". technical field [0002] The invention relates to a combined weighing device equipped with a plurality of weighing hoppers. Background technique [0003] Combination weighing devices generally include a plurality of hoppers and are designed to select one or a group of these hoppers in order to measure the weight of the material contained in such a hopper or group of hoppers according to plan or on demand. In addition to the hopper, this combination weighing device also includes a distribution feeder and converging hopper. In such weighing installations, the converging hopper and the weighing hopper must be removed from the removed or removed from the system. Furthermore, it is often the case that the weighing hopper is cleaned when required. [0004] In such a case, each hopper is kept o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G19/393G01G19/387
Inventor 米津道彦小西洋江
Owner ISHIDA CO LTD
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