JPH022282Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to a totaling device for a sewing machine.

[Conventional technology]

In order to streamline production activities, for example, in a garment factory, the production volume per sewing machine is aggregated in one place so that the production volume can be known from moment to moment. For example, to tally the production output of three sewing machines, as shown in FIG _{. 2} ,
Each is connected to a totalizer 51 via _l3 .

[Problem that the invention attempts to solve]

The conventional aggregation device includes switches 50a, 50b,
50c are configured to be connected to the totalizer 51 via the connection lines l ₁ , l ₂ , and l ₃ respectively, so when the number of switches increases, the wiring between the switches and the totalizer 51 becomes complicated and Since the required total length is enormous, there was a problem in that the wiring and connection work was troublesome.

[Means for solving problems]

This idea aims to shorten the required overall length of the connection line and also make wiring and connection work easier.It is designed to be installed separately for multiple sewing machines, and configured so that the amount of electricity can be switched between two positions. A determining means is connected to an input means configured by connecting in series electric quantity variable means to form a closed loop, and one of the electric quantity variable means and a plurality of electric quantity variable means are connected from the input means to the determining means. activating the means to supply different amounts of electricity, and based on the amount of electricity supplied;
The number of actuated electric quantity variable means is determined by the determining means, and the determined number is counted by the counting means.

[Effect]

The input means of this invention is constructed by connecting electric quantity variable means in series, forms a closed loop with the determination means, and operates one and a plurality of electric quantity variable means. Different amounts of electricity are supplied to the determination means.

〔Example〕

FIG. 1 shows an embodiment of this invention. In the figure, reference numerals 1, 2, and 3 are switching circuits as means for varying the amount of electricity, and each is provided correspondingly to a plurality of sewing machines installed in a sewing factory.Switching circuit 1 is a circuit in which a resistor 1a and a switch 1s are connected in series. The switching circuit 2 consists of a circuit in which a resistor 2a and a switch 2s are connected in series, and a resistor 1b connected in parallel with this circuit (for example, 2Ω when the switch is OFF and 1.5Ω when the switch is ON). It is configured with a resistor 2b connected in parallel (for example, 5Ω when the switch is OFF, and 2.5Ω when the switch is ON).
Ω), and the switching circuit 3 is composed of a circuit in which a resistor 3a and a switch 3s are connected in series, and a resistor 3b connected in parallel with this circuit (for example, 16Ω when the switch is OFF and 8Ω when the switch is ON). Between the switching circuits 1 and 2, between the switching circuits 2 and 3, and between the switching circuit 3 and the constant power source 4
The input means 5 is constructed by connecting the two terminals with one connecting line.

This input means 5 connects the constant power source 4 and the switching circuit 1 to the A/D via one connection line.
It is connected to converter 6. 7 is input means 5
The input means 5 includes a determining means for determining the number of actuated electricity amount variable means 1, 2, and 3 based on the amount of electricity supplied by the input means 5, and a microcomputer as a counting means for counting the determined number. forming a closed loop.

Next, the effect will be explained.

Switch 1s of switching circuits 1, 2, 3,
When either one of 2s and 3s is turned on, the current value supplied to the microcomputer 7 via the A/D converter 6 differs depending on the switch turned on, so the switch is turned on immediately.
It is possible to determine which switching circuit has been turned on, and also to determine that only one switch has been turned on.

Next, when multiple switches 1s, 2s, and 3s of the switching circuits 1, 2, and 3 are turned on at the same time, the signals are supplied to the microcomputer 7 via the A/D converter 6 by the turned-on switches. Since the current values are different, the combination of multiple switches turned on can be immediately determined.

FIG. 2 shows another embodiment of this invention. In this system, voltage is supplied to the microcomputer 7 via the A/D converter 6 instead of current, and the switching circuits 8, 9, and 10 each include a constant power source and a switch. The switching circuit 8 switches between supplying the voltage of the sum of the constant power supply 8a and the constant power supply (voltage value 1.5V) 8b or supplying the voltage of the constant power supply 8a by means of the switch 8s, and the switching circuit 9 switches between supplying the voltage of the sum of the constant power supply 8a and the constant power supply (voltage value 1.5V) 8b, and supplying the voltage of the constant power supply 8a. Constant power supply 8a and constant power supply (voltage value 2.0V)
It is switched whether to supply the voltage of the sum of the constant power supply 9b or the voltage of the constant power supply 9a. The switching circuit 10 switches between supplying the sum of the constant power supply 10a and the constant power supply (voltage value 2.5V) 10b or supplying the voltage of the constant power supply 10a by means of a switch 10s.

Since the counting device of this embodiment is configured as described above, when any one of the switches 8s, 9s, and 10s of the switching circuits 8, 9, and 10, for example, the switch 8s, is turned on, the constant power source 8a,
Voltage of 9a, 10a and voltage of constant power supply 8 (1.5V)
The sum of the voltages is supplied to the microcomputer 7 via the A/D converter 6. Since the voltage (1.5V) of the constant power supply 8 is different from other constant power supply voltages, it is immediately determined that the switch 8s has been turned on.

Then, for example, when the switches 9s and 10s of the switching circuits 9 and 10 are turned on simultaneously, the series voltage of the constant power supplies 8a, 9a, and 10a and the voltage of the switching circuits 9 and 10 (=2.0V+2.5V) are converted to A/D.
The signal is supplied to the microcomputer 7 via the converter 6.

The voltage of 4.5V is applied to the switch 9s and 10s.
Since this voltage appears only when the switches 9 and 9 are turned on at the same time, the microcomputer 7
It is determined that s and 10s are turned on at the same time.

[Effect of idea]

Since this invention is configured as described above, it has the effect of being able to shorten the required total length of the connection line and making wiring and connection work easier.

[Brief explanation of the drawing]

Figure 1 is a circuit diagram showing one embodiment of this invention, Figure 2 is a circuit diagram showing another embodiment of this invention, and Figure 3 is a circuit diagram showing another embodiment of this invention.
The figure shows a conventional example of a totaling device for a sewing machine. In the figure, 1, 2, 3... switching circuit, 4... constant power supply, 5... input means, 7... microcomputer.

Claims (1)

[Scope of Claim for Utility Model Registration] An input means formed by connecting in series electric quantity variable means which are provided correspondingly to a plurality of sewing machines and configured to be able to switch the electric quantity between two positions, and a closed loop with this input means. determining means for determining the actuated electric quantity variable means based on the electric quantity set by the input means; and counting means for counting the determined electric quantity variable means; A totalizing device for a sewing machine, characterized in that even if one or more of the variable means is switched, the amount of electricity of the input means is different.