JPS59141019A - Conveying condition regulating apparatus for object to be weighed conveying apparatus in combination balance - Google Patents

Abstract

PURPOSE:To enhance woking efficiency by automatically adjusting the conveying condition of an object to be conveyed, by providing a conveying apparatus for conveying the object to be weighed on a dispersing plate while providing an input part, a hopper selecting part and a conveying condition check part to a control apparatus. CONSTITUTION:A conveying condition regulating appartus has a distributing plate 1 which is, in turn, constituted by parallelly providing longitudinally long plates in adjacent relation to each other. In this case, the distributing plate 1 is arranged so as to bring the center thereof to the position directly under the supply orifice of a conveying apparatus (a supply apparatus) 10 while an input part 21, a hopper selecting part 22 and a conveying condition check part 23 are provided to a control apparatus 20. By this constitution, the conveying condition of an object to be conveyed is automatically adjusted so as to fit the storage amount of objects to be weighed on the distributing plate to a distributing state to enable the shortening of an adjusting time and working efficiency can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a combination punch, more specifically, a plurality of supply troughs are provided around a dispersion plate for dispersing objects to be conveyed, and each supply trough is provided with a weighing hopper. This invention relates to an improvement in a loading condition adjustment device for an article loading device in a combination weigher in which the weighing object above is conveyed to a weighing hopper, and a control device selects a set of a plurality of weighing hoppers that reach a set weight or a lit close to the set weight. .

In conventional combination scales, the amount of objects to be weighed into each weighing hopper is determined by the operator relying on intuition to adjust the conveying force adjustment volume of the feeder installed in the supply trough, and checking the hopper selection result of the control device. The adjustment was repeated many times.

The above-mentioned adjustment work must be carried out because the amount of conveyance changes each time the ridge type of the object to be weighed changes, but it is difficult for even an experienced person to do.

In addition, the dispersion state varies depending on the amount of objects to be weighed stored on the dispersion plate of the conventional combination balance, and therefore, if the amount carried by the carrying device that carries onto the dispersion plate is constant, the above-mentioned conveyance of the supply trough It is often not possible to make sufficient adjustments simply by adjusting the conditions, and the conveyance conditions are often adjusted to inappropriate conditions.
In such a case, it is difficult to find a combination that matches the set weight, resulting in poor work efficiency.

The present invention has been made in view of the above-mentioned conventional circumstances, and its purpose is to automatically adjust the loading conditions of a loading device that determines the amount of objects to be weighed on the distribution plate of a combination weigher. To provide a combination scale that easily and quickly adjusts the amount of objects to be weighed into a quantity hopper, maintains optimal loading conditions, and has excellent work efficiency.

Such a carrying-in condition adjusting device of the present invention is provided with a carrying-in device for carrying the object to be created onto the dispersion plate in the combination weigher, and the control device includes an input section for inputting a set weight of the combination weigher, etc. A hopper selection section that connects weighing hoppers that reach a weight close to the N amount or set weight, a check section that checks whether the loading conditions of the loading device are good or bad, and an adjustment that appropriately adjusts the loading conditions based on the check of the checking section. It is characterized by having a section.

A combination scale using an electromagnetic vibration type feeder as a conveyor according to an embodiment of the present invention will be explained with reference to FIGS. 2 to 4.
In the figure, (1) is a dispersion plate made up of vertically long plates arranged adjacent to each other in parallel. An electromagnetic vibration type feeder (3) is provided below.

Supply troughs (2) are arranged in parallel on the outer side of the distribution plate (1), and each supply trough (2) is equipped with an electromagnetic vibration type feeder (4).
and a pool hopper (6) at the discharge end of each supply trough.

A weighing hopper (5) each equipped with a weighing mechanism is disposed below each pool hopper (6).

The order of transporting objects to be weighed in the above combination scale is as follows:
First, the object to be weighed is supplied onto the dispersion plate (1), and the dispersion plate (υ
The feeder (3) then conveys the material in the direction of the arrow in FIG. 3 and disperses it. The feeder (3) is continuously driven.

When the pool hopper (6) in the supply trough (2) is empty, the feeder (4) is driven for a fixed period of time, thereby transporting the object to be weighed from the distribution plate (1) to the pool hopper (6). That is, the feeder (4) is driven intermittently.The pool hopper (6) stores the objects to be weighed, and when the weighing hopper (5) is empty, the bottom cover is opened and the objects to be weighed are dropped.Weighing The hopper (5) opens only the number of vehicles selected as a combination by the control device to create a combination of predetermined weights.

Next, the carrying-in device α will be explained with reference to FIGS. 4 and 5.
In the figure, U is a machine frame, and the upper and lower ends of the vertical part protrude horizontally in opposite directions υ, and a pivoted bucket conveyor u'4 is arranged in the machine frame αη along the shape of the machine frame Qv. It will be done. A supply hole] is bored on the lower surface of the upper protrusion of the machine frame αυ, and a hopper a4 is provided on the upper surface of the lower protrusion of the machine frame CLυ. In the case of the feeder α, a supply feeder a'it is provided at the lower part of the storage area for the objects to be weighed which supplies the objects to be weighed to the hopper (B).

When the objects to be weighed are stored in the storage section (1) and driven in the carry-in device αQ, they are conveyed to the pivoted packet conveyor (6) of the object to be weighed, and are carried out through the supply hole.

The conveyance value in the above loading device varies depending on the amplitude and frequency of the supply feeder Q, the conveyance speed of the pivoted packet conveyor (b), etc., and the conveyance condition to be adjusted, which will be described later, is one of these or the berth. .

As shown in FIG. 3, the balance combined with the supply device α1 is arranged so that the center of the dispersion plate (1) is directly below the supply hole (to) of the supply device α0.

Next, to explain the feeder (3 bars 4) (17) in Figure 4, the four leaf springs shown in the figure are attached to the machine frame (i.e. ) and trough (2)
(or dispersion plate, etc.). Mounting plate? A vibrator magnet (C) is provided on one side of the V, and a movable element (C) is provided on the other side. The movable element (c) is reciprocated up and down by driving the vibrator magnet (c) with a driver to be described later.

To explain the conveyance condition adjusting device of the present invention with reference to the principle block diagram shown in FIG. The carry-in condition adjustment section (c) is connected to a central processing unit (CPU).

The input section e41) is not equipped with an input operation section consisting of a numeric keypad for input, a display section for displaying setting weight, etc., an indicator light to display a combination of numbers and (-), and is set in the central processing unit (CPU). This is to input conveyance conditions, etc. to each feeder.

The hopper selection unit (2) determines whether the combined weight of the weighing hoppers (5) calculated by the central processing unit (CPU) is the set weight or a weight close to it, and the discharge gate ( 7. Each discharge gate (7) is provided with a gate driving circuit, that is, a driver (c), and the driver (c) and the ejection gate (c) are connected to each other.

Connect the par selection section.

The check section is designed to check the weight of the object to be weighed stored in the weighing hopper (5) by setting the check criteria described below based on the set weight. This is transmitted to the condition FA section described below.

The carry-in condition adjustment section (to) must not be connected to the carry-in device αQ.
Based on the command from the checking section, if the weight is light, the carry-in conditions are increased to increase the carry-in amount, and if the weight is heavy, the carry-in conditions are lowered to reduce the carry-in amount.

For example, the conveyance speed of the pivoted packet conveyor (b) can be adjusted by storing the adjustment speed of shi per unit weight in advance in the adjustment section ψ, and then , the speed is adjusted to compensate for the shortfall.

When adjusting the amplitude of the supply feeder qη, the weight relative to the set weight is calculated as a percentage, and the amplitude is increased or decreased in proportion to that percentage.

Weighing hoppers (5) are connected to the central processing unit (CPU) via the A filter converter 4, and the weight of the object to be weighed in each weighing hopper (5) is calculated, and the weights are combined and sent to the hopper selection section. Let the combination be determined in (b).

In addition, the central processing unit (CPU) has a pool hopper (6).
A drive circuit, that is, a driver (b) is connected to supply the object to be weighed into the empty weighing hopper (5), and also drives the supply feeder (4) of the empty pool hopper (6) to supply the weighing object to the empty weighing hopper (5). 6) Store the object to be weighed.

Next, we will discuss the check criteria for the conditions for carrying in objects to be weighed. For example, when the set weight is 2002 and four hoppers are combined, the following table is obtained when the conveyance condition is L gs hzi (unit: f).

In order to obtain 200t with four hoppers, it is sufficient to use 50v/hot, and the standards are as follows: (a) Determine the average value and allowable value for pestles 1 to 10 in advance, and set the conditions L gz hz It. The standard is that each average value falls within the tolerance.

etc. The average values for each of the above conditions are f = 47.4 g = 49.4 b = 48.8
1=53, standard (A), average value 50±1
If so, condition Q) is unconstitutional. Since it cannot be determined that condition □□□) is necessarily appropriate in one check, it is determined that condition (b)) is to be measured a certain number of times (for example, 3 times), and condition (b)) is measured a predetermined number of times. Make sure the magazine meets the criteria.

(b) Also, as another standard, each condition fz gz hX 1
The reference value may be η, which is the number of combined weights that fall within the set weight tolerance.

Next, the automatic adjustment of the loading conditions in the embodiment of the present invention will be explained with reference to the flowchart in FIG. 4. After starting operation, set the loading conditions (A: for example, feeder installation, vibration period, vibration time) automatically or manually through the input section, and then set the counter at the central processing unit (CPU) gate. Zeng set it to 0.

Driving the feeding cap device 4 and the combination scale, the pool hopper (6
), then store the object in the weighing hopper (5), and then weigh it).

Determine whether the weight of the object to be weighed satisfies the criteria based on either of the criteria (a) or (b) above (Q'I), and if the criteria is met, count the counter by one), conditions that meet the criteria. Determine whether the number of repetitions has reached a predetermined number. B
``If a constant is reached, memorize this condition and perform the combination operation.''

If the H1 constant is not reached, set the same conveyance conditions to 01,
Fully open the popper (5) and eject it @pupil, process (to) ψ
0cI71) (Return 1).

In step 9η, if the weighing value is negative, increase the conditions by a predetermined amount 6), and if it is positive, decrease the conditions @
1. Discharge the object to be weighed and proceed to the process (to) Soso (ha) (to)
Repeat step 07).

In the embodiment described above, the adjustment work was performed at the beginning of the combination work, but it is optional that automatic adjustment may be performed when a combination cannot be obtained in the middle of the work.

As described above, the present invention provides a combination weigher in which a control device selects a hopper that reaches a set weight or a weight close to a set number of plates. Since it is configured as a loading condition adjustment device for the weighing object loading device in a combination scale equipped with an adjustment section, it is possible to automatically adjust the loading conditions for the weighing object so that the storage lid for the weighing object on the dispersion plate is suitable for the dispersion situation. It is possible to quickly adjust the conveyance conditions of the supply trough and shorten the adjustment time, and it is also possible to set appropriate conditions and increase combination efficiency compared to the operator's subjective conveyance condition settings. can.

Thus, the desired goal is achieved.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the principle of the carrying-in condition adjustment device of the present invention, Fig. 2 is a front view of the combination weigher, Fig. 3 is a plan view thereof, Fig. 4 is a detailed view of the feeder, and Fig. 5 is a feeder. Three-dimensional view of the device,
FIG. 6 is a longitudinal side view of the same, and FIG. 7 is a flowchart showing the procedure for adjusting the downward angle. In the figure, (January...distribution plate (2)...supply trough (5)...dose hopper Usu...supply device (4)...control device (c)...input section )...Hopper selection section)...Check section ■...Details within loading conditions. % Applicant: Teraoka Seiko Gasoda Co., Ltd. Procedural Amendment Document Patent Application No. 14343 of 1983 2, Name of Invention Device for Adjusting Conveyance Conditions for a Device to be Weighed in a Combination Weigher 3, Person Making Amendment Case Related Patent Application Name: Teraoka Seiko Co., Ltd. 4, Agent (Showa year, month, day ■ No changes to the content written in rII of the drawing) as attached.

Claims (1)

[Claims] A plurality of supply troughs are provided around the dispersion plate that disperses the objects to be transported, and a weighing hopper is provided in each supply trough, and the objects to be weighed on the dispersion plate are transported by the supply trough to the weighing hopper, and the set weight is controlled by the control device. Alternatively, in a combination scale that selects a set of a plurality of weighing hoppers that reach xi close to a set weight, a carrying device is provided for transporting the object to be weighed onto the distribution plate, and the control device inputs the set weight, etc. of the combination scale. an input section for weighing, a weighing hopper selection section for selecting a weighing hopper that reaches a set weight or a weight close to the set weight, a check section for checking for defects in the carry-in device, and a check section for determining the carry-in conditions based on the check of the check section. A carrying-in condition adjusting device for a weighing object carrying-in device comprising a W-joint portion for adjusting as appropriate.