JPS60247121A - Combination scale - Google Patents

Abstract

PURPOSE:To improve operability, by moving auxiliary hoppers to discharge receiving positions from measuring hoppers and positions, which are deviated from the receiving positions. CONSTITUTION:Auxiliary hoppers 12 are provided in correspondence with measuring hoppers 11 in a combination scale. When the hopper 12, which is selected in combination, discharges a material and becomes vacant, a measured material is discharged from the upper hopper 11. When the hopper 11, which is not selected in combination, is located above the hopper 12, in which a material that is not selected in combination is contained, an air cylinder 13 is actuated and the hopper is moved to 12a shown by an imaginary line. Then the material in the hopper 11 is discharged. When the hopper 12, which is selected in combination, is located under the hopper 11, which is selected in combination, the discharge operations are performed by both hoppers. The material in the hopper 11 is discharged on a conveyer 14 through the hopper 12. Since one half the number of the hoppers, which take parts in combination, is the measuring hoppers, the number of the measuring systems is few. Since the material is inputted to the measuring hoppers, number of input positions becomes few, operability is good and costs can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a semi-automatic combination scale in which articles are mainly loaded manually by an operator.

<Prior Art> A conventional semi-automatic combination has a configuration as shown in FIG. 2 as a general type of kashi. In the figure, 1 is a weighing hopper, 2 is its load cell, and 10 sets of each are provided. 3 is a collection conveyor. In this combination scale, articles to be weighed are manually loaded into the weighing hopper 1, and after that, combination weighing is automatically performed. That is, a combination calculation is performed on the weights of the articles to be weighed in each weighing hopper 1, the gates of the weighing hoppers 1 selected for the combination are opened, and the articles to be weighed fall onto the conveyor 3 and weigh a predetermined weight. collected as goods.

In this combination scale, in order to obtain normal performance, that is, combination accuracy and capacity, the weighing system, such as weighing hopper 1, load cell 2, and control amplifier (not shown), etc.
0 sets are required, and there are 10 weighing hoppers, which are symmetrical locations into which the worker puts the articles to be weighed, which is a large number of input points. This combination requires 10 expensive metering systems.
Since it is for individual use, it tends to be expensive, and there are problems with operability because there are many places to put it in.

There is a configuration shown in FIG. 3 that takes into account the problem of the large number of input points. In the figure, reference numeral 5 indicates six input ports arranged in a row, and reference numeral 6 indicates a supply hopper provided corresponding to each input port. , a weighing hopper 8.9 is arranged below the moving position on both sides of the supply hopper 6, respectively,
A collection conveyor 10 is provided at a lower position. 2 in the figure is a load cell. In this combination weighing machine, the article to be weighed is put into the supply hopper 6 from the input port 5 by the hand of the worker, and the supply hopper 6 is supplied to the empty weighing hopper 8 or 9. A combination calculation is performed on the weight of the articles to be weighed in each of the weighing hoppers 8.9, the gates of the weighing hoppers selected for the combination are opened, the articles to be weighed fall onto the conveyor 3, and the articles of a predetermined weight are be collected as.

In this combination (9), if both of the two weighing hoppers 8.9 following one supply hopper 6 are selected for the combination and discharged, replenishment of the article to be weighed from the input port 5 is possible. Since the loading is done once in one weighing cycle, there will be an empty weighing hopper 8 or 9 in the next weighing cycle. Therefore, although there are as many as 12 measurement systems, not all of them are always operating effectively. There are two weighing systems compared to the conventional example shown in Figure 2.
There are many pairs, but the performance is about the same, and the number of insertion points is 10 to 6.
However, in the end, even though six sets of supply hoppers and their cylinders and two sets of metering systems were added, the effect was not commensurate with the increase in conuts.

In addition, in this type of semi-automatic combination weighing machine, it is often necessary for the worker to easily take out the articles to be weighed loaded into the weighing hopper 8.9 during work; That is almost impossible.

To explain this point, for example, meat pieces such as ploira are often made up of a relatively small number of combinations (6 to 8 pieces), and in that case, there are about 10 or 12 pieces. The probability of being able to create a combination of a predetermined weight from among the pieces of meat is low, and if that combination is not possible, one or two individuals manually replace the pieces of meat that have already been put in. - Being able to perform this swapping operation is one of the features of Kashi, which is semi-automatic combination.

<Problems to be Solved by the Invention> This invention addresses the problem of how to reduce the number of measuring systems without substantially sacrificing the operability and performance of a semi-automatic combination system. It is.

<Means for Solving the Problems> The means of the present invention for solving the above problems has a plurality of weighing hoppers and a number of auxiliary hoppers approximately corresponding to the number of weighing hoppers, and the number of auxiliary hoppers is It is configured such that the articles within can also participate in the combination to obtain a predetermined measurement value,
In a combination scale having a collecting device for receiving and collecting the discharged goods in the weighing hopper and the auxiliary hopper in combination, each of the auxiliary hoppers has at least one receiving position for receiving discharged from the weighing hopper and the receiving position thereof. 〇Work〉 The worker puts the article to be weighed into an empty weighing hopper. The first charge at the start of the operation is made to all weighing hoppers, and each article is weighed and discharged to the auxiliary hopper in the receiving position. The weight value of the article to be weighed received by the auxiliary hopper is stored in the auxiliary hopper. The second loading is also performed for each weighing hopper since most or all of them are empty. At that time, a combination calculation is performed to obtain a predetermined weight value from each weighing value weighed in the weighing hopper and the memorized weighing value of the article in each auxiliary hopper, and the combination is selected. Each of the articles in the hopper is discharged to a collecting device, and the collecting device collects the respective articles into articles of a predetermined weight. When discharging the article from each hopper, if there is an auxiliary hopper that is not discharging at that time in the receiving position of the discharging weighing hopper, move that auxiliary hopper to another position and then Empty the weighing hopper. Thereafter, if you continue to put objects to be weighed into the empty weighing hopper, the objects to be weighed will also be weighed and replenished into the empty auxiliary hopper, stored, and assembled as described above. Quantitative measurements are performed repeatedly to calculate the combination and then discharge.

<Example> A first example is shown in FIG. In the figure, reference numeral 11 denotes weighing hoppers, six of which are arranged in a row and provided at fixed positions. Each weighing hopper 11 has a discharge gate and discharges the article to be weighed downward.

11a is a card set/shi.

An auxiliary hopper 12 is provided below each of the weighing hoppers 11. Reference numeral 13 denotes an air cylinder provided for each auxiliary hopper, and the auxiliary hopper 12 is located at a receiving position where the discharge from the weighing hopper 11 is received, which is shown by a solid line in the figure, and at a side other than the receiving position shown by a phantom line in the figure. 12a. Each auxiliary hopper 12
has a discharge gate and discharges the article to be weighed downward at the receiving position.

A belt conveyor 14 is provided as a collection device so as to pass under the receiving position of each auxiliary hopper 12.8 In this combination scale, when the auxiliary hopper 12 selected for the combination is empty after discharging the articles, Upper weighing hopper 1
The weighed articles are discharged from the auxiliary hopper 12.
is stored correspondingly. Weighing hopper 11 above the auxiliary hopper 12 that has articles inside and is not selected for combination
is selected as a combination, air cylinder 13
operates to move the auxiliary hopper 12 to the position shown by the imaginary line, and then the weighing hopper 11 is discharged. If the auxiliary hopper 12 below the weighing hopper 11 that has been selected for combination is also selected for the combination, both will discharge and the articles in the weighing hopper 11 will pass through the auxiliary hopper 12. It is discharged onto the conveyor 14.

This embodiment shows a configuration in which one air cylinder 13 is provided for each auxiliary hopper, but even if one air cylinder is provided for all auxiliary hoppers and they are moved all at once, one cycle of quantitative measurement will still be required. The time required remains the same.

A second embodiment is shown in FIG. Reference numeral 21 denotes a weighing hopper, and five weighing hoppers are arranged on the same straight line, divided into three and two weighing hoppers with a one-piece interval in the middle, and are provided at fixed positions. Each weighing hopper 21 has a discharge gate and discharges the p1 weighed article downward. 21a is a load cell.

Six auxiliary hoppers 22 are arranged in parallel below the row of weighing hoppers 21. Two of the auxiliary hoppers 22 are located at intervals of one hopper, and metal fittings 26 and 27 are placed between each other.
The cylinders are connected to each other and moved to three different positions along the row direction by an air cylinder 23. That is, FIG. 4(a)
and moves to the intermediate position shown by the solid line in (b) and the positions on both sides thereof. Each auxiliary hopper 22 has three different positions, and can always change between a receiving position for the article to be weighed where the weighing hopper 21 is present on the upper side and another position where the weighing hopper 21 is not present on the upper side. As a result, each weighing hopper 21 is in a state in which no auxiliary hopper 22 exists below it.

Each auxiliary hopper 22 has a discharge gate for discharging the articles in a downward direction.

A collecting device and a seat belt conveyor 24 are provided so as to pass under each auxiliary hopper 22.

In this combination, during one cycle of quantitative weighing, the worker sequentially inputs articles into the empty weighing hopper 2I, the weighing hopper 21 weighs the articles, and the controller transfers the articles from the weighing hopper 21 to the empty auxiliary hopper 2I. replenishment of articles and storage of article weight, combination calculation by the control unit, replenishment of articles from one or both of the weighing hopper 21 and the auxiliary hopper 22 to the conveyor 2.
The movement of the 0 auxiliary hopper 22 by 3 positions is for discharging the articles to the conveyor 24 and replenishing the empty auxiliary hopper 22, so basically it is for discharging the articles. This is two 3-position movements in which the product moves 3 positions and then moves 3 positions for replenishment, but in order to shorten the required time, in this embodiment, only article discharge is based and the 3-position movement is not performed. However, when the goods are completely discharged, the movement is terminated at that position, and goods are replenished when possible. Therefore, at the time of combination calculation, not all of the auxiliary hoppers 22 accommodate articles 17, so the number of auxiliary hoppers 22 is
There is one more than the number of. Regarding the movement of the auxiliary hopper 22, the articles selected for combination are discharged onto the conveyor 24 at a first position where the auxiliary hopper 22 is not yet moved, a second position where it has moved, and a third position where it has further moved. It will end in one of two positions.

Regarding this point, the results of continuous simulations show that
In most cases, it was sufficient to move the auxiliary hopper 22 two positions to the second position, and sometimes it was necessary to move it to the third position, but there were also cases where the first position was sufficient, so a sufficiently large number of quantitative measurements could be carried out. In this case, auxiliary hopper 2 is removed during one cycle.
The time required to move 2 can be considered as the time required to move 2 positions. Therefore, the work efficiency is almost the same as that of the first embodiment, which has a configuration corresponding to two-position movement. '=1: Also, semi-automatic combination scales are not required to have completely equal quantitative measurement times each time, unlike fully automatic scales, so a certain amount of variation is not a problem.

Note that this embodiment was designed so that the width of the installed subane in the factory used may be narrow.0 <Effect of the invention> Half or approximately half of the number of hoppers participating in the combination are weighing hoppers. Therefore, since the number of weighing systems is small and the loading is carried out into the 't'rn hopper, there are few places to be loaded, and it is easy to replace the articles loaded into the weighing hopper. Therefore, considerable cost reduction is possible, and operability is good. Also, since there is no need to move the weighing hopper, it is advantageous in terms of maintaining accuracy.

[Brief explanation of the drawing]

Figure 1 shows a schematic configuration of the first embodiment of the present invention, in which a) is a front view, ('b) is a side view, (C) is a plan view, and Figure 2 is a conventional semi-automatic combination. The schematic configuration of the scale is shown in FIG.
Fig. 3 shows a schematic configuration of a conventional semi-automatic combination scale different from Fig. 2. Country is a front view, (t)l is a side view,
(C) is a plan view, FIG. 4 shows a second embodiment of the present invention, al is a front view, (b+ is a side view, and (C1 is a plan view). 11.21... Weighing hopper, 12.22... Auxiliary hopper, 13.23- Air cylinder, 14.24...
Bead conveyor (collecting device). Patent applicant: Yamato Seiko Co., Ltd. Agent: Satoshi Shimizu and 2 others Fig. 21 (j) (Illusion (c'> Fig. 3 (-6)

Claims (1)

[Claims] (1) It has a plurality of IJ weighing hoppers and a number of auxiliary hoppers approximately corresponding to the number of weighing hoppers, and is configured so that articles in any of the hoppers can participate in combinations to obtain a predetermined weighing value, The combination has a collecting device for receiving and collecting the discharged articles in the weighing hopper and the auxiliary hopper by the combination, wherein each of the auxiliary hoppers has at least one receiving position for receiving discharged from the weighing hopper. A combination scale characterized in that it is provided so as to be movable from its receiving position to another position.