JPS62299724A - Weighing device - Google Patents

Abstract

PURPOSE:To reduce the capacity of a control for each weigher and to perform centralized operation at one place by controlling the controller which is provided for each weigher and incorporates a computer by a common host computer. CONSTITUTION:Weighers B weigh object bodies on set conditions, controllers C are provided corresponding to the respective weighers B and incorporate computers, and the host computer A sets weighing conditions of the respective weighers B connected through transmission lines D. Then, the host computer A transmits weighing conditions such as the set weight of a body weighed by each weigher B and an upper and a lower permissible value to the controller C of the weigher B. The controller C controls its feeder and the gate opening and closing operation of its weighing hopper the weighing conditions. The computer of the controller C only needs to have enough capacity for the operation control over its weigher, so it may has small capacity and display processing, etc., are not necessary. The setting processing of the weighing conditions and the display processing are carried out by the host computer A, so the operation is facilitated.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) The present invention connects a computer provided in each of a plurality of weighing machines to a host computer, and allows the host computer to control each weighing machine. The present invention relates to a weighing device that transmits predetermined weighing conditions to a person.

(Prior art) As a measuring device for weighing a predetermined amount of articles such as foodstuffs, the third
A weighing machine as shown in the figure is known.

In the figure, reference numeral 1 denotes a carry-in hopper into which articles conveyed by a conveyor or the like are input, and 2 denotes a drive device such as a vibrator, which is connected to a trough 4 via a transmission mechanism 3. 5 is a needle hopper, 6 is a gate, 7 is a chute, and 8 is a remote control box with a built-in computer.

Next, the operation of this weighing machine will be explained. When the articles to be weighed are loaded into the carry-in hopper 1, the drive device 2 is activated by a command signal from the remote control box 8, and the transmission mechanism 3 is activated.
The trough 4 is driven through the weighing hopper 5 to transport the articles to the weighing hopper 5. At this time, the excitation intensity of the trough 4 changes according to the driving torque of the driving device 2, and the amount of articles supplied to the weighing hopper 5 changes. The driving torque at this time can be arbitrarily set by a command signal from the remote control box 8. The weighing hopper 5 is equipped with a weight detecting device such as a load cell (not shown), and the mQ of the transported article reaches a predetermined weight f('g, for example, 100 g), which is commanded from the remote control box 8. Then, the gate 6 is opened and the weighed articles are discharged through the chute 7 into a container (not shown) or the like.

(Problem to be Solved by the Invention) A multi-chain structure in which a plurality of such weighing machines are connected, for example, a four-speed configuration in which weighing machines ■ to ■ are connected as shown in FIG. Items to be weighed may be discharged. In this case, conventionally, each weighing machine had a remote control box with a built-in display device that contained an individual computer with the same capacity.
Since ~ ■ was installed, there was a problem that the cost took time because the cost was high, and the operator had to be performed various operations for each remote control box.

The present invention aims to solve the problems of the prior art and provides a weighing device in which computers provided for each weighing machine can be controlled by a common host computer.

(Means for solving the problems) The measuring device of the present invention is configured as follows. That is, it is equipped with a plurality of weighing machines that weigh articles to be weighed under set conditions, a control device for each weighing machine, and a control means that is connected via a transmission line and sets the weighing conditions of each of the weighing machines. .

(Function) The present invention connects a device computer consisting of a plurality of weighing machines to a host computer via each individual computer and a transmission line to control the weighing conditions of each weighing machine. Since the operability is improved and the capacity of each individual computer is reduced, costs can also be reduced.

(Example) Hereinafter, an example of the present invention will be explained with reference to the drawings. Add +1. FIG. 1 is a block diagram when the present invention is applied to a weighing device connected to a four-speed weighing machine.

In the figure, A is a host computer and B is a total of 4 computers.
C is a control device incorporating a computer, and D is a transmission line for transferring data between the control device C and the host computer A.

Next, the operation of the measuring device of the present invention configured as described above will be explained. Host computer A is connected to each weighing machine B.
The weighing conditions such as the set weight of the article to be weighed by each weighing machine B and the upper and lower allowable values are transmitted to the control device C of the weighing machine B.
The control device C controls the gate opening and closing of the feeder and weighing hopper of each weighing machine B based on the weighing conditions. The computer of the control device C only needs to have the capacity to control the operation of each weighing machine, so a small capacity computer is sufficient, and there is no need to perform display processing. Furthermore, since the process of setting and displaying the weighing conditions is executed by the host computer A, the operation becomes simple.

FIG. 2 is a block diagram when the present invention is applied to n combination weighing devices (computer scales El-En).

The configuration of such a combination measurement device itself is well known, so a detailed explanation will be omitted, but in a plant where multiple computer scales EINEn are installed in various production lines 7j, it is necessary to ,Up. The lower limit value and other measurement conditions may be different, and the number of products produced, processing usage, and other operating conditions may also be different. In such a case, the host computer A and each computer scale E1 to En may be connected via a transmission line M.
I L Te. The host computer A sets the respective weighing conditions and operating conditions for each computer scale E1 to En. Thereby, operations for each computer scale can be unified.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments. For example, a checker may be installed at the latter stage of the combination weighing device to check the quantity of the article to be weighed. A similar system can be constructed by connecting the checker and the combination weighing device to the host computer A, and furthermore, by connecting the individual devices that make up the production plant to the host computer, the system can be configured in the same way. It is also possible to centralize the operation of each device by allowing the operating conditions to be set from the host computer.

(9. Effect of light) As explained above, according to the present invention, a plurality of total
．． In the weighing machine, each weighing machine is locally controlled by an individual computer installed in each weighing Isobune, and the weighing conditions and operating conditions for each weighing machine are connected to each weighing machine. Since this is carried out by the control means, the capacity of the individual computer installed in each weighing boat can be small, and the operator's operations can be concentrated in one place.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment in which the present invention is applied to a weighing device connected to a four-speed weighing machine, and FIG. 2 is a block diagram showing an embodiment in which the present invention is applied to a combination weighing device. FIG. 3 is a block diagram showing a schematic structure of a weighing machine, and FIG. 4 is a block diagram showing a schematic structure of a weighing device to which a four-speed weighing machine is connected. A...Host computer, B...Weighing machine, C...
・Control device 21. D...Transmission line, El-En・
...Computer scale.

Claims (1)

[Claims] It is equipped with a plurality of weighing machines that weigh articles to be weighed under set conditions, and a control means that is connected to the control device of each weighing machine via a transmission line and sets the weighing conditions of each of the weighing machines. A weighing device featuring: