JPH0335955B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a control system for an embroidery sewing machine that allows manual work to be performed during embroidery work.

Conventional technology Conventionally, when using an embroidery machine to perform manual work such as pasting cloth pieces or thread processing for shaping cloth or appliqué embroidery during embroidery sewing, the position where the embroidery frame stopped was a difficult place to work. Even when there was a problem, he would lean forward and stretch out his hand, moving in an awkward position.
Therefore, there have been problems in that it places an extra burden on workers, reduces efficiency, and results in some products having poor quality.

To avoid this problem, it is possible to store movement data in the pattern tape, stop the embroidery machine, move the embroidery frame to a position where it is easy to work, and then return it to continue embroidery. As proposed by the applicant, the embroidery frame is moved to a position where it is easy to work using a switch or panel switch installed near the table of the embroidery sewing machine, and after the work is completed, it is returned to its original position using a return switch to resume embroidery sewing. (Refer to Utility Model Application No. 144682, 1983).

Problems to be Solved by the Invention However, in the conventional embroidery sewing machine control system configured as described above, the former has a problem in that the size of the embroidery sewing machine is different, so the movement data is different, and a tape must be created for each sewing machine. It was too complicated. In addition, the latter is burdensome because it requires the worker to operate the switch and watch the movement of the embroidery frame, and the worker cannot take care of other tasks while operating the switch, for example. When a person is in charge of multiple embroidery machines, even if one of the other machines stops due to thread breakage, the user cannot immediately thread the needle and resume embroidery, resulting in inefficiency.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention is provided with a head and a hook that operate synchronously at the upper and lower parts of the table, and a start switch starts the sewing machine, and the table In the single-needle or multi-needle embroidery machine that embroiders on cloth stretched across an embroidery frame that moves vertically and horizontally in response to signals from the CPU, RAM is Set arbitrary embroidery frame movement data that is different for each color change count value or execution count value and setting value, and after the embroidery machine stops, the
The embroidery frame is moved to a predetermined position based on the movement data stored in the RAM and stopped, and then the start switch is pressed to select the arbitrary number set by the numerical input switch and the memory execution switch. The embroidery machine is characterized in that, after returning the embroidery frame to its original position by calculating return data in the CPU from the embroidery frame movement data, the operation of the embroidery sewing machine before stopping can be continued.

According to the present invention, the embroidery frame is stopped at a predetermined count value during embroidery stitching by operating a switch on the numerical setting operation panel, the embroidery frame is moved to a position where manual work is easier, and the start switch is operated. Since the embroidery frame can be returned to its original position and embroidery can continue, the operator can work more efficiently, and the pattern tape eliminates manual work.
It can be used with any embroidery machine, and additional settings can be made even if the pattern tape was created on a different sewing machine, regardless of the amount of movement of the embroidery frame.
Any patterned tape can be used.

Embodiment FIG. 1 is a block diagram of a control system for an embroidery sewing machine according to an embodiment of the present invention, in which a CPU 1 stores ROM 2 for storing initial setting data of the embroidery sewing machine, and data input from a numerical setting operation panel, a tape reader, etc. A RAM 3 for storing the information is connected, and an input/output device 4 is connected to the CPU 1. This input/output device 4
A display 5, a numerical setting operation panel 6, and a switch 7 for starting and stopping the embroidery machine and for turning the power on and off are connected to the machine. Furthermore, a solenoid circuit 1 that operates a sewing machine motor 9, thread tension, and skip stitching device is connected to the input/output device 4 via a drive circuit 8.
0 is connected, and a positioning sensor 11 of the sewing machine is connected to the input/output device. A tape reader 12 for inputting pattern data is connected to the input/output device 4, and a shaft main motor 15 is further connected to the input/output device 4 via a main shaft control section 13 and a main shaft drive unit 14 of the embroidery sewing machine. In addition, in order to move the embroidery frame, the table controller 1 is connected to the input/output device 4.
6 and X, Y pulse motor drive unit 17
An X pulse motor 18 and a Y pulse motor 19 are connected via. Further, a drive circuit 21 and a color change motor 22 are connected to the input/output device 4 via a color change control section 20, and a color change control section 20
A stop sensor 23 is connected to. Furthermore, a timing sensor 25 is connected to the input/output device 4 via a timing detection section 24 .

Next, the operation of this embodiment will be explained with reference to the flowchart shown in FIG. First, the user operates the numerical input switch and storage execution switch provided on the numerical setting operation panel 6 to input the number of stitches (hereinafter referred to as execution count) by which the embroidery frame is to be moved. However, if you want to execute a color change, the color change execution count can be determined by reading the tape with the tape reader 12.
Since it is input to the RAM 3, if a color change number is specified, the CPU 1 calculates the data and the calculated value is used. Further, the CPU 1 calculates the storage order determined by the number of setting instructions, and stores the input execution count in the RAM 3. Then, a distance count value (number of stitches) indicating the distance to which the embroidery frame is to be moved is inputted using the numerical setting operation panel 6. This distance count value is stored by the CPU 1 at an address in the RAM 3 together with the execution count value.

In addition, if you want to stop the embroidery operation as it progresses and store this count value at the actual counting position, calculate the sewn count value based on the data read from the tape and calculate this value. The CPU 1 calculates the actual count based on the counted value. Furthermore, as shown in the flowchart in Figure 3, when the embroidery frame is moved using the manual switch 7, a counter installed in the CPU 1 counts the distance in terms of the number of stitches, and based on this count value, By inputting from the numerical input operation panel 6,
The count value of the movement data is calculated by the CPU 1 and stored.

Next, when performing an embroidery operation as shown in the flowchart of Fig. 4, the data is read out from the tape reader, stored in RAM3, and the number of stitches is transferred to the CPU.
1 and issues a command to the table control unit 14 and the X and Y pulse motor drive unit 15.
The embroidery frame is moved by driving the X pulse motor 18 and Y pulse motor 19. The distance count value of moving this embroidery frame is compared with the execution count value or the color change count value in the CPU 1, and if they match, a stop operation command is issued to the table control unit 16, and the X pulse motor 18 and Y Stop the pulse motor 19. Note that this comparison is made every time the count number of data stitches is incremented by one.

The embroidery sewing machine stops rotating the spindle in response to a stop operation command from CPU 1, and CPU 1 again determines what caused this stop command to stop.The stop is based on the execution count value set by the movement of the embroidery frame, etc. When it is determined that this is the case, an operation routine such as moving the embroidery frame is executed based on this execution count value.

Next, as shown in the flowchart of Figure 5,
In a routine that performs a specified operation (for example, a frame movement routine), the previously set X and Y movement data is read from the RAM 3, and the X pulse motor 18 and Y pulse motor 19 are controlled based on this movement data. The data (rotation direction and rotation pulse value) is calculated and the X pulse motor 18 and Y pulse Morse 19 are driven. After the operation of the X pulse motor 18 and Y pulse motor 19 is completed, the process returns to the control routine for stopping the operation.

Next, after completing the set movement and returning to the operation stop control routine, the contents of the stop command are judged to determine whether a restart is necessary. Jump to the beginning of the operating routine of FIG. 3 for start-up. If the embroidery sewing machine stops, it jumps to the main routine for determining the operating instructions shown in FIG.

Further, as shown in FIG. 6, when a restart instruction is issued by the start switch 7, the CPU 1 is moved due to settings such as moving the embroidery frame when it was stopped last time. ,
It is determined whether it is necessary to return to the stopped state (embroidery interrupted state), and if it is necessary to return, the amount of return is calculated from the movement data written in RAM 3, and the X pulse motor 18 and The Y pulse motor 19 is driven to return the embroidery frame to the position at which it was stopped, and the operation is restarted.

By configuring this embodiment in this way, the operator can perform other work until the embroidery machine stops and the embroidery is moved to the work position, and the operator can also perform other work on another embroidery machine. It is also possible to use a patterned tape that has already been used, and if the amount of movement is insufficient, it is only necessary to set the amount of movement to be added using the numerical setting operation panel 6.

Effects of the Invention As is clear from the above description, the present invention stops the embroidery frame at a predetermined count value during embroidery stitching by operating a switch on the numerical setting operation panel.
The embroidery frame can be moved to a position where manual work is easier, and by operating the start switch, the embroidery frame can be returned to its original position and embroidery can continue, allowing the operator to work more efficiently. Also, because the pattern tape eliminates manual work, it can be used on any embroidery machine, and even pattern tapes created on different machines can be additionally set regardless of the amount of movement of the embroidery frame. Therefore, it has the advantage that any patterned tape can be used.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a control circuit of an embroidery sewing machine according to an embodiment of the present invention, and FIGS. 2 to 6 are flowcharts for operating the control circuit of FIG. 1. 1...CPU, 2...ROM, 3...RAM, 4
... Input/output device, 5 ... Display, 6 ... Numerical setting operation panel, 7 ... Switch, 8 ... Drive circuit,
9...Sewing machine motor, 10...Solenoid circuit,
11...Positioning sensor, 12...Tape reader, 13...Spindle control unit, 14...Spindle drive unit, 15...Spindle motor, 16...Table control unit, 17...X, Y pulse motor drive unit , 18...X pulse motor, 19...Y
Pulse motor, 20... Color change control unit, 21...
Drive circuit, 22... Color change motor, 23...
Stop sensor, 24... Timing detection section, 25...
...Timing sensor.

Claims (1)

[Claims] 1 The sewing machine is equipped with a head and a hook that operate synchronously at the top and bottom of the table, and a start switch is used to start the sewing machine, and embroidery is carried out on cloth stretched over an embroidery frame that moves horizontally and vertically on the table based on signals from the CPU. On a single-needle or multi-needle embroidery machine, by operating the numerical input switch and memory execution switch provided on the embroidery machine, the color change count value or execution count value and arbitrary embroidery frame movement that differs for each set value are stored in the RAM. After the data is set and the embroidery machine stops, the embroidery frame is moved to a predetermined position based on the movement data stored in the RAM according to one of the count values above, and then stopped. ,
By pressing the start switch, the CPU calculates return data from the arbitrary embroidery frame movement data set by the numeric input switch and memory execution switch, returns the embroidery frame to its original position, and then stops. A control system for an embroidery sewing machine, characterized in that the previous operation of the embroidery sewing machine can be continued.