JPS5825308Y2 - Preset device for digital display scales - Google Patents

Description

[Detailed description of the invention] This invention uses a weight detector to detect the loaded weight, and a unit weight setting input device to count the quantity of loaded items.
This invention relates to a presetting device for a digital display scale that can display a display.

There is a digital display scale, such as a counting scale, that detects the loaded weight on a weight detector, counts the number of loaded items, and completes loading when the desired number is reached.

However, in this method, it is necessary to interrupt the loading operation at the same time as the loading completion signal, and there are drawbacks such as overloading during the operation process.

In this idea, the number of items to be loaded is preset, and at a certain stage when the number approaches that number, an initial signal is issued, a control signal is given to the loading system, and a loading speed limit or operation limit is added. It is an object of the present invention to provide a presetting device for a digital display scale that enables loading work to be completed reliably.

This invention will be explained in detail below based on the illustrated embodiments.

In the figure, reference numeral 1 denotes a weight detector such as a load cell, and a weight display digital signal is inputted to the weight display section 3a of a digital display 30 via an analog-to-digital converter 2.

Further, this digital display scale is provided with a unit weight setting input device 4 for setting a unit weight, and a digital signal is output from the unit weight setting input device 4.

The digital signal from the unit weight setting input device 4 and the digital signal output from the weight detector 1 via the analog-to-digital converter 2 are divided by the calculator 5 to calculate the number of pieces.

This number is displayed on the number display section 3b of the digital display 3.

On the other hand, this digital display scale has a number preset input device 6.
is available, and you can set the desired number here.

The output of the preset input device 6 and the output of the arithmetic unit 5 are compared in a comparator 7.

For example, in this comparator 1, the count value from the calculator 5 is subtracted from the set value from the preset input device 6.

Further, an alarm generation range setting device 8 is provided separately, and the comparator I can output an initial signal at, for example, 90% of the preset value.

In other words, the preset value is multiplied by the set value of the alarm generation range setter 8 to have a separate series of 90-plus preset values, and in this state, the comparator T compares it with the counted value from the calculator 5. Comparator I outputs an initial signal when the values match or exceed each other.

This initial signal applies, for example, a loading speed limit or a loading operation limit to the loading operation, and also causes the alarm buzzer 9 to generate an intermittent sound, for example.

Next, when the counted value matches the original preset value, a completion signal is issued to complete the loading operation, and the alarm buzzer 9 also becomes a continuous sound.

In the figure, reference numeral 3c is a unit weight display section that displays a unit weight setting value.

As detailed above, this invention has a weight detector and a unit weight setting input device, and a signal from the number preset input device for presetting a desired number of pieces is sent from the weight detector and unit weight setting input device. The comparator compares the number calculation value calculated through the arithmetic unit with the signal, and when it reaches a predetermined value that approximates the number of the number preset input device, outputs an initial signal, and when the comparator matches, Since the completion signal is issued, it is possible to predict when the loading operation will be completed, and this can bring about excellent practical effects such as controlling the loading operation speed, preventing overloading, and providing notification.

[Brief explanation of the drawing]

The drawing is a circuit configuration block diagram showing an embodiment of this invention. 1...Weight detector, 2...Analog-
Digital converter, 3...Digital display, 3a
...Weight display, 3b...Number display section, 3c...Unit weight display section, 4...Unit weight setting input device, 5... ...Arithmetic unit, 6...
...Number preset input device, 7...Comparator, 8
...Alarm generation range setting device, 9...Alarm buzzer.

Claims (2)

[Scope of utility model registration request] (1) A single weight detector, a unit weight setting input device, a computing device for calculating the signals from the weight detector and unit weight setting input device to obtain a count value, and a number for presetting a predetermined number of pieces. A preset input device, an alarm generation range setting device that presets an alarm generation range smaller than the preset value of this preset input device, and a preset number of pieces from the number preset input device and the number count value from the above calculation unit are compared to determine the number of pieces. The present invention is characterized by comprising a comparison circuit that outputs an initial signal when the count value falls within the alarm generation range, and outputs a completion signal when the count value reaches the preset value of the preset input device. Preset device for digital display scales. (2) Claim No. (1) of the above utility model registration characterized in that the comparison circuit executes an operation of converting a percentage value of the alarm generation range into a number of objects.
A presetting device for the digital display scale described in Section 1.