JPH0829243A - Screening totaling system - Google Patents

Abstract

PURPOSE:To easily control products for an entire production line or for each production line by detecting a transport timing where the products are delivered from a metering device and are carried to a weight screening machine and outputting a line identification signal. CONSTITUTION:When products pass detection sensors 10-1-10-3, detection signals S1-S3 are outputted from the detection sensors 10-1-10-3, to a delay circuit 12. The detection signals S1-S3 are delayed by the amount of time from a detection timing of products by the detection sensors 10-1-10-3 to the metering/screening by a weight screening machine 8 after passing a gathering lane 16 by a delay circuit 12, thus becoming line identification signals LS1-LS3 and being outputted to a weight screening machine 8. The weight screening machine 8 identifies from which line out of production lines L1-L3 a product is delivered and screens whether the product has a proper amount of content or not based on the upper/ lower limit values for a target weight set for the production lines L1-L3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting and summarizing system having a weighing device and a single weight sorter provided in each of a plurality of production lines, and more particularly to facilitating product management.

[0002]

2. Description of the Related Art Recently, due to the diversification of products, like snacks such as potato chips, 100g, 150g
Various kinds of products with different weights such as g and 200g are produced. If you want to mass produce this product with the same weight,
As shown in FIG. 5, one weighing device 2-1 to 2 for each of a plurality (three in this example) of production lines L1 to L3.
-3, the packaging machines 4-1 to 4-3 and the weight sorters 8-1 to 8-3 are provided, and the products are weighed to a predetermined weight by the weighing devices 2-1 to 2-3, respectively. The bags are packed by the machines 4-1 to 4-3. Then, each of the plurality of weight sorters 8-1 to 8-3 is weighed, and based on the target weight common to each of the weight sorters and the upper and lower limit reference values, whether the product is a positive quantity product or an improper quantity product is sorted, Goods are discharged to the shipping line, and non-quantity goods are discharged to the collection line.

In this case, the production lines are summed up by summing up information such as the number of positive or non-quantity items of the products sorted by the production lines L1 to L3 in the weight sorters 8-1 to 8-3. Information such as the total number of L1 to L3 produced can be obtained. Further, the production status of each production line L1 to L3 is grasped from the individual information from each of the weight sorters 8-1 to 8-3,
It is also possible to check the yield of each weighing device 2-1 to 2-3.

[0004]

However, the conventional system has the following problems. A plurality of weight sorters 8-1 to 8-3 for a plurality of weighing devices 2-1 to 2-3
However, since it is not possible to reduce costs and save space, it may be desirable to have only one weight sorter.
This is possible because the weight sorter generally has a higher throughput than the weighing device.

In this case, the weighing machines 2-1 to 2-3 are provided with the same target weight and the same reference value as the commodities in the one weight sorter.
It is easy to collect the information of the whole production lines L1 to L3 because it is transported from the factory, but it is difficult to collect the information of each production line L1 to L3 individually, and the production status of each production line L1 to L3 is checked. There was a problem that it was difficult.

The present invention solves the above problems and provides a single weight sorter for a plurality of weighing devices.
It is an object of the present invention to provide a selection / aggregation system that enables easy product management for the entire production line or for each production line.

[0007]

In order to achieve the above object, the sorting and summarizing system of the present invention weighs the weighing devices provided in each of a plurality of production lines and the products discharged from each weighing device. It is a sorting and summarizing system that has a single weight sorter that sorts whether it is a positive quantity product or a non-quantity product, and the transport timing when it is discharged from the weighing device of each production line and transported to the weight sorter. An identification means for detecting and outputting a line identification signal, and receiving the line identification signal,
It is provided with a first totaling means for totalizing the information of the positive quantity products or the non-quantity goods for each production line, and a second totaling means for totalizing the information of the positive quantity products or the non-quantity goods of the entire production line. .

[0008]

According to the present invention, it is possible to identify which production line a product has been discharged from, and to collect information on the quantity or non-quantity of the product for each production line, as well as the information on the entire production line. Tally. Therefore, it becomes easy to check the production status of each production line.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a sorting and collecting system according to an embodiment of the present invention. This sorting / aggregating system includes a plurality of (three in this example) production lines L1 to L3, and each of the production lines L1 to L3 has a weighing device 2-1 to 2-3 such as a combination weighing device. And the packaging machines 4-1 to 4-3 are arranged downstream thereof. Standby lanes 14-1 to 14-3 are provided downstream of the packaging machines 4-1 to 4-3, and a single collecting lane 16 is provided further downstream thereof. In this collecting lane 16, the carry-out line 22
Are connected, and a single weight sorter 8 is provided in this carry-out line 22. In addition, this sorting and summarizing system is provided with an identification means including detection sensors 10-1 to 10-3 such as photoelectric sensors arranged at the downstream ends of the standby lanes 14-1 to 14-3 and a delay circuit 12. 6, first counting means 18,
The second totaling unit 20, the switching unit 32, the display unit 34, and the printer 36 are provided.

Merchandise is supplied from the production lines L1 to L3, conveyed to the respective combination weighing devices 2-1 to 2-3, combined and weighed to a predetermined weight, and packed by the respective packaging machines 4-1 to 4-3. Will be packed. Items packed in bags are waiting lanes 14-1 to 14-14
-Waiting at -3. Then, the gates 24-1 to 24-3 of the corresponding standby lanes 14-1 to 14-3 are opened based on the production command P determined in advance in the production lines L1 to L3, and the goods are collected in the collecting lane 16. It is discharged toward. The opening timings of the gates 24-1 to 24-3 are different from each other, and thereby, it is controlled so that a plurality of types of products are not overlapped and discharged to the collecting lane 16. The weight is discharged from the standby lanes 14-1 to 14-3 and weighed by the weight sorter 8.
Identification of which production line L1 to L3 the selected product belongs to is performed as follows.

First, when a product passes through the detection sensors 10-1 to 10-3, the detection signals S from the detection sensors 10-1 to 10-3.
1 to S3 are output to the delay circuit 12. In the delay circuit 12, the detection signals S1 to S3 are detected by the product detection sensor 10
From the detection timing by -1 to 10-3, the assembly lane 16
Is delayed by the time until the weight is sorted and sorted by the weight sorter 8, and the line identification signals LS1 to LS3 are output to the weight sorter 8. That is, the weight sorter 8
Receives the line identification signals LS1 to LS3 of the product at the timing of weighing and selecting the product. Then, the weight sorter 8 discriminates which of the production lines L1 to L3 the products are discharged from, and the production lines L1 to L3 thereof are identified.
Based on the predetermined upper and lower limit values for the target weight set for the above, whether the product is a positive quantity product or an improper quantity product (excess product and light product) is selected. FIG. 2 shows an example of a time chart showing the operation of this sorting and collecting system.

For example, when a product on the production line L1 passes between the detection sensors 10-1 at the detection timing T1, the delay circuit 12 passes through the collecting lane 16 from the detection timing T1 and weighs by the weight sorter 8. The line identification signal LS1 delayed by the time TD until selection is output to the weight sorter 8 (101 in the figure). In the weight sorter 8, if the switching means 32 is switched to the first totaling means 18, the information on the quantity of goods or the quantity of goods of which the production line L1 is identified is individually changed for the production line L1. It is totaled. FIG. 3 shows an example of individual information about the production line L1.

The individual information also includes the average value (X bar) and standard deviation (SD) of the weight display of the combination weighing devices 2-1 to 2-3 of the production lines L1 to L3 shown in FIG. Be done. For example, when the average value of the weight display of the combination weighing device 2-1 obtained with respect to the target weight of 100 g is large, it is considered that the yield of the combination weighing device 2-1 is poor, so the average value approaches 100 g. As described above, the weighing conditions and the like of the combination weighing device 2-1 are individually adjusted.

Next, when the product on the production line L2 passes between the detection sensors 10-2 at the detection timing T2 shown in FIG.
The delay circuit 12 outputs the line identification signal LS2 delayed by TD time from the detection timing T2 to the weight sorter 8 (see 103). In the weight sorter 8, information on the quantity or non-quantity of the products whose production line L2 is identified is individually summed up by the first summing means 18 for the production line L2. In the same manner, information on the regular quantity or the non-quantity quantity for each of the production lines L1 to L3 is tabulated.

In this way, the information on the positive quantity products or the non-quantity goods of each of the weighing devices 2-1 to 2-3 is totaled by the first totaling means 18 for each of the production lines 2-1 to 2-3. It These information data are displayed by the display means 34 and printed out by the printer 36 as needed. This facilitates checking the production status of each of the production lines L1 to L3.

Further, by switching to the second totaling means 20 by the switching means 32, the production lines L1 to L3
Information on the total quantity of goods or non-quantity goods is aggregated. This state is shown in FIG. As a result, it is possible to confirm the number of positive-quantity products and non-quantitative products in the entire production lines L1 to L3.
Thereafter, the goods are sorted by the sorting device 26 of the weight sorter 8, the regular quantity products are discharged to the shipping line 46, and the improper quantity products are discharged to the collecting line 48.

As described above, in this sorting and summarizing system, a plurality of production lines are provided with a single weight sorter for sorting the weight of the produced products by weight or non-quantity so that the products are produced. By identifying the produced production lines and managing the products for each production line, it is possible to improve the yield rate for each production line by adjusting the weighing conditions of each weighing device.

In this embodiment, the photoelectric sensor is used as the identification means, but a magnetic sensor or a proximity sensor may be used.

Further, in this embodiment, the combination weighing device is used as the weighing device, but a quantitative filling machine may be used.

The production command P is assigned to each production line L1 to L.
If 3 is regularly instructed at regular intervals, the first totalizing means 18 may perform totaling in order for each of the production lines L1 to L3, so that the identifying means 6 may not be provided.

[0021]

As described above, according to the present invention, it is possible to identify from which production line a product has been discharged, and to collect information on the quantity or non-quantity of the product for each production line. , Information on the entire production line is also aggregated. Therefore, it becomes easy to check the production status of each production line. Accordingly, when a single weight sorter is provided for a plurality of weighing devices, it is possible to provide a sorting and summarizing system that can easily manage products for the entire production line or each production line.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a selection and aggregation system according to an embodiment of the present invention.

FIG. 2 is a time chart showing the operation of the above-mentioned selection and aggregation system.

FIG. 3 is a diagram showing information of each weighing device.

FIG. 4 is a diagram showing information on the entire weighing device.

FIG. 5 is a configuration diagram showing a conventional selection and aggregation system.

[Explanation of symbols]

2-1, 2-2, 2-3 ... Measuring device, 6 ... Identification means, 8 ... Weight sorter, 18 ... First counting means, 20 ... Second counting means, L1, L2, L3 ... Production line .

Claims (1)

[Claims] 1. A weighing machine provided on each of a plurality of production lines, and a single weight sorter for weighing the products discharged from each weighing device to select whether the product is a positive quantity product or a non-quantity product. And a discrimination means for detecting a conveyance timing when the weight is discharged from the weighing device of each production line and conveyed to the weight sorter, and outputting a line identification signal, and receiving the line identification signal. , A first totaling means for totalizing information on positive quantity or non-quantity goods for each production line, and a second totaling means for totalizing information on positive quantity or non-quantity goods for the whole production line Sorting aggregation system.