JPH0736637Y2 - Sewing machine production number display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a production number display device for a sewing machine, which displays the number of sewn works.

(Prior Art) In industrial sewing machines and the like, the number of sewn workpieces is often counted for each sewing machine to control the number of products produced.

Conventionally, a hand-held mechanical counter is used to count the number of products produced, and a method in which a worker operates this counter or an automatic counter is attached to a sewing machine to complete a predetermined sewing pattern once. For example, a method is used in which the count value is automatically incremented every time and the center device counts the number of products produced in all sewing machines.

(Problems to be solved by the invention) However, in the above-mentioned conventional example, the handheld counter has a problem that the place where the handheld counter is not fixed interferes with the work and there is a possibility that the counter may be lost. However, in the case of a device that automatically counts, even if a mistake is made in sewing, the counting is performed, so that it is necessary to correct the count value, which is inconvenient to operate.

In addition, when the display unit for the number of produced products is provided on the sewing machine main body, the space is required, but since the display of the produced number is not always necessary, providing a dedicated display device will increase the cost, This is not preferable because it leads to an increase in the size of the display unit.

(Means for Solving the Problems) In order to solve the above problems, the configuration of the present invention has a counting means for counting the number of produced products, a storage means for storing the count value of the counting means, and this storage means. Of a sewing machine having a display unit for displaying the count value stored in the display unit and a display content switching unit for displaying the count value or any other display content related to the sewing machine on the display unit. In the production number display device, the counting means includes a count switch capable of counting the production number each time one piece is produced and a decrement switch capable of reducing the count value stored in the storage means. This is a device for displaying the number of produced sewing machines.

(Operation) With the configuration of the above invention, the number of products to be produced can be counted by turning on the count switch every time the worker finishes the work of the specified predetermined sewing pattern once. At this time, since the completion of the work can be judged by the operator himself, the sewing machine side does not automatically count even when the sewing is defective, so that the reliability of the count value is improved.

Further, when the count switch is pressed incorrectly, the count value stored in the storage means can be decremented by turning on the decrement switch, so that the count switch can be corrected by mistake. . Therefore, it is possible to make the display of the number of manufactured products accurate.

Furthermore, since the display is also used as another display related to the sewing machine (display essential for controlling the sewing machine, etc.),
The need for an indicator dedicated to displaying the number of products produced is eliminated, resulting in a slight increase in cost.

Further, since the storage means can also be used as an essential element for controlling the sewing machine, the cost is slightly increased.

(Embodiment) FIG. 1 is a schematic configuration diagram of an electrical component of an embodiment of the present invention.

The microcomputer 1 performs various controls on the sewing machine to which this embodiment is applied, and is provided in the control box 34 shown in FIG. 3 together with the memory 2.

Display elements 11 to 14, a count switch 3, a display mode changeover switch 4, a decrement switch 5, a clear switch 6, a display digit changeover switch 7 and the like are connected to the microcomputer 1.

FIG. 2 is a diagram showing the configuration of the display unit 30A in the present embodiment, and the display unit 30A is composed of the display elements 11-14.

Above each of the display elements 11 to 14, forward switches 15 to 18 for advancing the numerical value displayed on the display element below by 1 each time the ON operation is performed are provided.
Reversing switches 19 to 22 for reversing each one are provided.

FIG. 3 is an external view of a sewing machine to which this embodiment is applied.

The sewing machine main body 32 is provided on the table 31, and a motor for driving the sewing machine main body 32 is provided below the sewing machine main body 32.
A control box 34 for controlling the sewing machine is provided.

A foot pedal 33 is arranged below the table 31. The foot pedal 33 is connected to various switches provided in the control box 34, a speed command device, etc., and when stepped forward, the driving speed of the sewing needle changes in accordance with the stepped amount. Yes, when you step back, thread cutting is automatically performed.

The display 30A is provided on an operation panel 36 attached to the front surface of the sewing machine main body 32.

Further, the count switch 3, the display mode changeover switch 4, the decrement switch 5, the clear switch 6,
The display digit changeover switch 7 is provided in a switch box 37 attached at a predetermined position on the table 31.

The structure of the switch box 37 is as shown in FIG.

Since the count switch 3 is operated most frequently, a relatively large push button type switch is used.
The decrement switch 5 is arranged next to the count switch 3 as a small push button type switch. Since the clear switch 6 is used less frequently, it is arranged above the count switch 3 as a small push button type switch. Display mode switch 4
Is arranged as a toggle switch above the count switch 3. The display digit changeover switch 7 is arranged next to the clear switch 6 as a small push button type switch.

The display mode change-over switch 4 displays either one of the display content of the display 30A and the other display content regarding the sewing machine (in this embodiment, the number of stitches in each step at the time of reproduction sewing is displayed). A switch for selecting and displaying.

The count switch 3 is a switch for incrementing the numerical value displayed on the display 30A. display
In the 30A, each display element 11 to 14 displays a one-digit number, and a four-digit number can be displayed as a whole.

The decrement switch 5 is a switch for decrementing the numerical value displayed on the display 30A, and is used when the count switch is pressed incorrectly.

The clear switch 6 changes the value displayed on the display 30A to "0.
It is a switch to return to "000".

The display digit changeover switch 7 is a switch for displaying a 4-digit numerical value divided into two digits in a sewing machine having two display elements 11 and 12 as shown in FIG. 8 instead of the display 30A. Is.

Inside the memory 2, a display data area 61 as shown in FIG. 5 and a stitch number storage area 62 as shown in FIG.
A production number counter area 63 is provided.

The display data area 61 is an area for storing the data to be displayed on the display unit 30A, the address SA is the data to be displayed on the display element 11, the address SB is the data to be displayed on the display element 12, and the address SC is The data to be displayed on the display element 13 and the address SD store the data to be displayed on the display element 14.

The number of stitches storage area 62 is an area for storing the number of stitches in a predetermined sewing process for the reproduction sewing operation.
Is the number of stitches in the forward stitching process (hereinafter, referred to as A process) of the backtack at the start of sewing (hereinafter, referred to as front tacking), and the address PB is the reverse stitching process in the front tacking (hereinafter, referred to as B process). ), The number of stitches at the address PC, the number of stitches in the reverse stitching process (hereinafter referred to as the rear stitch) at the end of sewing (hereinafter, the rear stitch), and the address PD, the forward stitch of the rear stitch. The number of stitches in the process (called process D) is stored.

The production quantity counter area is an area for storing the production quantity. The address NA is the 1000th numerical value, the address NB is the 100th numerical value, the address NC is the 10th numerical value, and the address. The first digit is stored in ND.

FIG. 7 is a flowchart showing a process for displaying the number of produced products, which is one of the processes executed by the microcomputer 1.

When the operator switches the display mode changeover switch 4 to the production number display mode side, the determination in step 41 becomes YES,
It becomes possible to operate the count switch 3 and the like.

If the count switch 3 is turned on in this state, 1
The value of the production number counter area 63 is incremented each time it is turned on (step 48), whereby the production number can be counted.

If the wrong count switch 3 is pressed, the decrement switch 5 is turned on to decrement the value in the production quantity counter area 63 (steps 43, 4).
9).

When the clear switch 6 is turned on, the value of each address NA to ND in the production number counter area 63 becomes "0",
The stored value of the number of produced sheets is cleared (steps 44 and 50).

The process of step 45 is a process of determining whether or not the display unit 30A is of a two-digit display type, and a display digit designation switch (not shown) provided in the control box 34 can be displayed on the display unit. By setting it on the digit side, the judgment corresponding to this is made. In the present embodiment, since the display device 30A is a four-digit display device, the judgment at step 45 is always NO.

Therefore, the process of step 53 is executed, the display element 11 displays the numerical value of the 1000th place stored in the address NA of the production number counter area 63, and the display element 12 stores the value stored in the address NB. The value of the 100th place stored in the address NC is displayed on the display element 13, and the value of the 1st place stored in the address ND is displayed on the display element 14. It

The operator sets the work of the specified predetermined sewing pattern to 1
The operator can judge the completion of the work by turning on the count switch 3 each time the sewing operation is completed. Therefore, the sewing machine does not automatically count even when the sewing is defective. The reliability of the count value is improved, and the operator does not have to bother with correcting the count value, which is convenient.

Next, when the display mode changeover switch 4 is switched to the reproduction sewing mode side, the determination in step 41 becomes NO, and the processing in step 47 causes the display element 11 to display the number of stitches storage area.
The number of stitches for process A stored in address PA of 62 is displayed, the number of stitches for process B stored in address PB is displayed on display element 12, and the number of stitches stored in address PC is displayed for display device 13. The number of stitches in the C step is displayed, and the number of stitches in the D step stored in the address PD is displayed on the display element 14.

Here, the reproduction sewing refers to an operation in which the front and back stop stitches are always sewn with the number of stitches stored as described above. By storing the number of stitches in the A process to the D process, the sewing is performed. Even when the operator does not intentionally perform the start and end of the, the front and back stop stitches are automatically executed with the stored number of stitches.

On the other hand, when the display can only display two digits as shown in FIG. 8, the judgment in step 45 is YES in the display mode of the number of produced products, so that the display changeover switch 7 is turned on in step 46. It is determined whether or not it has been operated.

When the display changeover switch 7 is off, the process of step 52 is executed, the tenth numerical value stored in the address NC of the production number counter area 63 is displayed on the display element 11, and the display element 12 is displayed. , The first digit stored in the address ND is displayed.

Therefore, the operator can see the last two digits of the stored count value.

If the user wants to see the upper two digits of the stored count value, he / she can turn on the display digit changeover switch 7 to
The process of 52 is executed, the display element 11 displays the 1000th numerical value stored in the address NA of the production quantity counter area 63, and the display element 12 displays the 100th numerical value stored in the address NB. Is displayed.

When the switch 7 is turned off, the display returns to the original lower two digits.

In the case of a sewing machine equipped with this display unit 30B, the number of forward stitches of the front backtack stitch and the number of stitches of the reverse stitch of the backtack stitch are the same, and the number of stitches of the reverse stitch of the front backtack and the backtack stitch are the same. The number of stitches for forward sewing is the same. Therefore, in the stitch number storage area 62, only the addresses PA and PB are used,
In the process of step 47, the display process of the display elements 13 and 14 is
It is virtually not done.

In the above-described embodiment, when the display mode changeover switch 4 is on the reproduction sewing mode side, the operation of the count switch 3 and the like is in a disabled state. It is also possible to configure such that operations such as 3 are effective. In this case, the number of stitches in the remanufacturing sewing process is displayed on the display, but when the count switch 3 is turned on, the value in the production number counter area 63 is incremented and the display mode changeover switch 4 is set to the production number display mode side. When switched to, the count value of the number of products produced including the value counted during the reproduction sewing mode is displayed.

Further, in this case, a switch may be provided for switching whether the operation of the count switch 3 or the like in the reproduction sewing mode is valid or invalid. If the switch is disabled, in the reproduction sewing mode, It is also possible to prevent the count value from being erroneously turned on when the number of stitches is corrected so that the count value is changed.

Further, the present invention is not limited to the display of the number of products produced as in the above embodiment, which is also used as the needle number display in the remanufacturing process, and relates to a sewing machine other than the number of stitches in the remanufacturing process. The present invention can be widely applied as long as it can switch between the display and the display of the number of products produced.

(Effect of the Invention) As described in detail above, according to the production number display device of the sewing machine according to the present invention, the count switch is operated every time the worker finishes the work of the specified predetermined sewing pattern once. You can count the number of products produced by turning on. At this time, since the completion of the work can be judged by the operator himself, the sewing machine side does not automatically count even when the sewing is defective, so that the reliability of the count value is improved.

Further, when the count switch is pressed incorrectly, the count value stored in the storage means can be decremented by turning on the decrement switch, so that the count switch can be corrected by mistake. . Therefore, it is possible to make the display of the number of manufactured products accurate.

Furthermore, the increase in cost is slight.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an electrical component portion of an embodiment of the present invention, FIG. 2 is a plan view showing an arrangement of a display and related switches in the embodiment, and FIG. 3 is applied to the embodiment. FIG. 4 is an external view of the sewing machine, FIG. 4 is a block diagram of a switch box in the same embodiment, FIG. 5 is a block diagram of a display data area provided in the memory in FIG. 1, and FIG. FIG. 7 is a configuration diagram of a stitch number storage area and a production number counter area provided in FIG. 7, FIG. 7 is a flowchart showing the content of control executed in the same embodiment, and FIG. 8 is a diagram showing another configuration example of the display. is there. 1 …… Microcomputer 2 …… Memory 3 …… Count switch 4 …… Display mode changeover switch 11 to 14 …… Display element 30A, 30B …… Display unit 32 …… Sewing machine body 34 …… Control box 36 …… Operating panel 37 …… Switch box 63 …… Production counter area

Claims (1)

[Scope of utility model registration request] 1. A counting means for counting the number of produced sheets, a storage means for storing the count value of the counting means, a display for displaying the count value stored in the storage means, and a display for displaying the count on the display. A production number display device for a sewing machine, comprising a display content switching means for selecting and displaying either a count value or another display content relating to the sewing machine, wherein the counting means displays the production number each time one piece is produced. A production number display device for a sewing machine, comprising a count switch capable of counting and a decrement switch capable of reducing the count value stored in the storage means.