JPH0349479B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a control system for an automatic embroidery sewing machine,
In particular, the present invention relates to a control system that controls the needle bar jump or the sewing machine rotation speed by taking into account the embroidery frame moving speed, which is set according to the weight of the embroidery frame and the product set in the embroidery frame.

[Conventional technology]

In an embroidery sewing machine, the maximum sewing width that can be sewn in one stitch is determined by the number of revolutions of the sewing machine.
When a sewing machine is operated at a certain rotational speed, the needle bar has traditionally been jumped in order to form a stitch that exceeds the maximum stitch width determined by the rotational speed. −18464
No., JP-A No. 59-223353, etc.). In this case, the stitch created when the needle bar jumps becomes a skip stitch, and a long stitch is formed. On the other hand, instead of jump control, long stitches have been formed by lowering the sewing machine rotation speed. As the sewing machine rotational speed decreases, the corresponding maximum stitch width also increases, making it possible to form long seams.

[Problem that the invention seeks to solve]

Strictly speaking, the maximum sewing width that can be sewn in one stitch is related not only to the number of revolutions of the sewing machine but also to the moving speed of the embroidery frame. Even if the rotation speed is the same, the maximum sewing width will be longer if the frame moving speed is faster, and shorter if it is slower. Therefore, in order to perform accurate and efficient jump control or rotational speed switching control, it is desirable to perform control taking the embroidery frame movement speed into consideration. However, in the past, jump control or rotation speed control was not performed in accordance with the embroidery frame movement speed.

In an automatic embroidery sewing machine, the embroidery frame movement speed is not necessarily constant and may change depending on embroidery conditions. For example, in order to operate the pulse motor for driving the embroidery frame efficiently and prevent synchronization,
The moving speed of the frame is variably set depending on the weight of the embroidery frame and the product set in the embroidery frame. In this way, when the frame moving speed is variably set depending on the weight of the frame, etc., efficient jump control or rotation speed control cannot be performed using conventional methods.
In other words, the jump condition or rotation speed switching condition must be determined assuming that the frame movement speed is fixed at a predetermined minimum speed, and jump control or rotation speed control can only be performed within that range. Therefore, efficiency is lost if a higher frame movement speed is chosen.

This invention was made in view of the above points,
Control of an automatic embroidery sewing machine that performs efficient jump control or rotational speed control taking into account the embroidery frame movement speed that is variably set according to the weight of the embroidery frame and the product set in the embroidery frame. The aim is to provide a method.

[Means for solving problems]

The control method of the automatic embroidery sewing machine according to this invention is as follows:
When performing jump control of the needle bar, there is a parameter supply means for supplying parameters related to the moving speed of the embroidery frame, an input means for inputting data for setting jump insertion conditions, and a control method based on input jump insertion condition setting data. Generating at least one of embroidery frame feed amount data or sewing machine rotation speed data as data indicating jump insertion operating conditions, and generating data for correcting the embroidery frame feed amount data or sewing machine rotation speed data to be generated according to the parameters. It is characterized by having the means.

In addition, when controlling the sewing machine rotation speed, a parameter supply means for supplying a parameter related to the speed of the embroidery frame, an input means for inputting data for setting the sewing machine rotation speed switching condition, and a parameter supply means for inputting data for setting the sewing machine rotation speed switching condition, and a Based on this, data indicating the operating conditions for changing the sewing machine rotation speed is generated, and
The present invention is characterized by comprising data generating means for correcting the sewing machine rotational speed switching operating condition data to be generated in accordance with the parameters.

As a typical example, parameters related to the embroidery frame movement speed are set depending on the weight of the embroidery frame and the product (fabric) set therein.

In the embodiment, as described later, there are various types of jump insertion condition setting data inputted by the input means, and the jump insertion operation condition data generated from the data generation means corresponds to the embroidery frame feed. Either or both of the quantity data and the sewing machine rotation speed data.

Similarly, in another embodiment, as will be described later, there are various types of sewing machine rotational speed switching condition setting data inputted by the input means.

[Effect]

When performing jump control of the needle bar, data for setting jump insertion conditions is inputted via an input means, and based on this data, at least embroidery frame feed amount data or sewing machine rotation speed data is input as data indicating jump insertion operating conditions. One is generated from the data generating means. According to the present invention, the parameter supply means further supplies a parameter regarding the moving speed of the embroidery frame, and the embroidery frame feed amount data or sewing machine rotation speed data to be generated from the data generation means is corrected by this parameter. be done. The embroidery frame feed amount data or sewing machine rotation speed data generated as jump insertion operation condition data is the criterion for determining whether to jump the needle bar based on the relationship with the stitch width of the sewing pattern or the sewing machine rotation speed. used as.

For example, data indicating a certain sewing machine rotation speed A is input as data for setting jump insertion conditions, and based on this data, the maximum sewing width B corresponding to this rotation speed A is input as jump insertion operation condition data.
Assume that embroidery frame feed amount data that instructs embroidery frame feed amount is generated. At this time, the value B of the feed amount data is generated in a state in which it is corrected according to the parameter related to the moving speed of the embroidery frame. For example, when the moving speed is controlled in two stages, the value of the feed amount data is B for a slow moving speed, and B+Δb for a fast moving speed, and so on. In this case, if the feed amount data corresponding to the maximum sewing width is left as B without correction, B<
When sewing a stitch width B' with the relationship B'<B+Δb, a jump occurs. However, if correction is performed as in the present invention, there is no need to jump B'. Therefore, reducing the number of jumps,
It is possible to improve the efficiency of embroidery sewing.

To give another example, data indicating a certain embroidery frame feed amount B is input as data for setting jump insertion conditions, and based on this data, a sewing machine that uses this feed amount B as the maximum possible sewing width is set as jump insertion operation condition data. Assume that data indicating the rotational speed A is generated. At this time, the value A of this sewing machine rotation speed data
is generated after being corrected according to the parameters related to the embroidery frame movement speed. For example, when controlling the movement speed in two stages, the value of the sewing machine rotation speed data is A when the movement speed is slow, but it is corrected to A + △a when the movement speed is fast. . In this case, the stitch width to be switched to jump is fixed at B, but if the sewing machine rotation speed is kept at A at a fast frame movement speed, the frame moves faster, so the maximum possible stitch width is The value should be greater than B, and there will be some leeway in the rotational speed. However, if the correction is performed as in the present invention, the sewing machine rotation speed can be increased to A+Δa, and the effect of embroidery stitching can be increased accordingly.

Although various other control modes are possible, details will be described later in the embodiments.

Next, when attempting to achieve the same objective by controlling the sewing machine rotation speed without jump control, data for setting the conditions for switching the sewing machine rotation speed are inputted via an input means. Based on this, data indicating operating conditions for switching the sewing machine rotational speed is generated from the data generating means. According to the present invention, furthermore, the parameter supply means supplies a parameter regarding the moving speed of the embroidery frame, and the sewing machine rotational speed switching operating condition data to be generated from the data generation means is corrected using this parameter. This operating condition data for changing the sewing machine rotational speed is used as a criterion when determining whether to switch the sewing machine rotational speed based on the stitch width of the sewing pattern or the relationship with the current rotational speed of the sewing machine.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of the control method according to the present invention, and shows an example of the internal configuration of the control condition setting section 10 in FIG. 2. As shown in FIG. Second
The figure is an overall block diagram of a control system of an automatic embroidery sewing machine to which the present invention is applied. In the sewing machine shown in FIG. 2, jump control of the needle bar is performed in order to form a stitch that exceeds a standard sewing width that is appropriately determined. Further, the moving speed of the embroidery frame can be variably set in several stages depending on the weight of the embroidery frame and the product set therein.

First, the control condition setting section 10 will be explained with reference to FIG. 1. Reference numeral 1 denotes a weight parameter setting section, which is used to set and input parameters regarding the total weight of the embroidery frame and the product set therein. . For example, it includes a switch for ranking weights into several levels and selecting the rank, and a circuit for generating weight data W corresponding to the selected weight rank. Since the moving speed of the embroidery frame is controlled according to the weight data W input by the weight parameter setting section 1, the weight parameter setting section 1 is a means for supplying parameters related to the frame moving speed. Applies to.

2 is an arbitrary intermediate rotation speed S regarding the main shaft of the sewing machine
This is the rotation speed input section for inputting settings. This intermediate rotation speed S is input to the switching point data generating section 6 as data for setting jump insertion conditions.
In other words, in the example shown in FIG. 1, an arbitrary intermediate rotation speed S is input as the jump insertion condition setting data.

The frame movement speed setting circuit 3 generates a control signal for setting the movement speed of the embroidery frame according to the weight data W given from the setting section. Specifically, a control signal is generated that slows down the frame movement speed as the weight increases.

The minimum feed amount data generating unit 4 calculates the maximum embroidery frame feed amount per stitch that is possible at the maximum rotation speed S1, based on the maximum rotation speed S1 of the main shaft of the sewing machine, which is predetermined as a value unique to this sewing machine. Generates data indicating L1 (for convenience, this is called the minimum feed amount).

The minimum rotation speed data generating unit 5 calculates the maximum feed amount based on the maximum embroidery frame feed amount per stitch L2, which is predetermined as a value unique to this sewing machine.
Data indicating the sewing machine main shaft rotation speed S2 (for convenience, this is called the minimum rotation speed) corresponding to L2 is generated.

Each of the above data generating units 4 and 5 according to the frame movement speed
In order to correct data L1 and S2 generated in , weight data W is input to each data generation section 4 and 5. Thereby, in each of the data generators 4 and 5, the values of the generated data L1 and S2 are corrected in accordance with the weight data W. Specifically, the heavier the weight (that is, the slower the frame movement speed), the lower the L1,
Correct to reduce the value of S2. This means that even if the number of rotations of the sewing machine is the same, the corresponding maximum possible frame feed amount becomes smaller as the frame movement speed becomes slower (the frame movement time takes longer). Alternatively, even if the frame feed amount is the same, the necessary number of revolutions corresponding to the same frame feed amount can be reduced as the frame movement speed is slower (the frame movement time takes longer).

The switching point data generation unit 6 generates data indicating jump insertion operating conditions based on the intermediate rotation speed S input as jump insertion condition setting data.
Embroidery frame feed amount data L (referred to as switching point feed amount for convenience) is generated, which is used as one reference for jump control. The weight data W is also given to this data generator 6, and the value of the data L1 to be generated is corrected in accordance with the weight data W. Basically, the switching point feed amount L is the maximum possible feed amount of the embroidery frame per stitch when the main shaft of the sewing machine rotates at the inputted intermediate rotation speed S. Specifically, the correction according to the weight data W is such that the heavier the weight (that is, the slower the frame movement speed), the smaller the value of L is made. The reason is the same as mentioned above.

The switching point data generating section 6 includes a movable time calculation circuit 7 that calculates the maximum movable time of the embroidery frame per stitch when the sewing machine rotates at a set intermediate rotation speed S, and a movable time calculation circuit 7 that calculates the maximum movable time of the embroidery frame per stitch when the sewing machine rotates at a set intermediate rotation speed S. It includes a feed amount calculation circuit 8 that calculates the maximum possible feed amount of the embroidery frame corresponding to the possible time, and a correction circuit 9 that corrects the calculated feed amount in accordance with weight data W. For example, the feed amount calculation circuit 8 calculates the feed amount when the weight is the minimum, and the correction circuit 9 corrects the feed amount so that it becomes smaller as the weight becomes heavier. The other data generators 4 and 5 can also have similar configurations.

The control signal output from the frame movement speed setting circuit 3 is applied to the frame movement control circuit 23 shown in FIG. 2, which controls the movement speed of the embroidery frame 11. The frame movement control circuit 23 is supplied with data instructing the X and Y axes of the embroidery frame 11 via the jump control unit 16, and is fed via the drivers 14 and 15 with data instructing the X and Y axes of the embroidery frame 11. Axis drive pulse motors 12, 13
A pulse corresponding to the desired feed amount is supplied to the machine at a rate corresponding to the set moving speed. Based on this, the embroidery frame 11 is driven in the X and Y axes.

In addition, each data L1, S2, L generated from each data generator 4, 5, 6, data of the set intermediate rotation speed S, maximum rotation speed S1 and maximum feed amount
The L2 data is input to the jump control section 16 shown in FIG. This jump control unit 16 contains data (X, Y direction feed amount data (X, Y data) and data indicating the current rotational speed _So of the sewing machine main shaft motor 18 are also given. The data indicating the current rotation speed S _o is data inputted by the operator using an input means (not shown) to set the actual sewing machine rotation speed, or the actual rotation speed of the sewing machine main shaft motor 18 is detected by the rotation speed (not shown). It may be data detected by any means.

The jump control unit 16 receives various data L1, L2, S1, S2, L, given from the control condition setting unit 10.
Jump control is performed using S as the jump insertion operation condition data, and the jump should be inserted in the relationship between the current rotation speed S _o and the jump insertion operation condition when the feed amount of the X or Y axis for each stitch of the sewing pattern is It is determined whether the stitch is a kimono or not, and when a jump is to be inserted, a jump command is generated, and the X or Y axis feed amount for the stitch is divided as appropriate and given to the frame movement control circuit 23. The method of dividing the feed amount in this case is well known and will not be particularly described. Jump command signal is from amplifier 19
is applied to jump solenoid 20 via.
The solenoid 20 is energized based on this jump command signal, and the needle bar 22 is driven by the needle bar drive device 21.
The needle bar 22 is caused to jump by temporarily stopping the driving of the needle bar 22.

An example of the content of jump insertion control in the jump control unit 16 in the case of the embodiment shown in FIG.
This will be explained with reference to FIGS. In the figure, the vertical axis represents the number of rotations of the sewing machine, and the horizontal axis represents one stitch width (feed amount of the embroidery frame) in the sewing pattern. Jump insertion operating condition data S1, L1, S, L, S2,
L2 determines the maximum possible feed rate as a function of the sewing machine speed. This function is represented in the graph by a straight line connecting the intersection of S1 and L1, the intersection of S and L, and the intersection of S2 and L2. The weight correction mentioned above, that is, each data S1 according to the frame movement speed
The above function moves due to the correction of L2.

First, as shown in FIG. 3, when the current rotation speed S _o of the sewing machine main shaft motor 18 is between the maximum rotation speed S ₁ and the intermediate rotation speed S, the X and Y data for each stitch in the sewing pattern are size and minimum feed amount
L1 is compared in the control unit 16. If the size of the X or Y data exceeds L1, a jump insertion operation is performed. Both X and Y data
If it is less than L1, the jump insertion operation is not performed and the normal sewing operation is performed.

Next, as shown in FIG. 4, the current rotation speed S _o of the sewing machine main shaft motor 18 is the intermediate rotation speed S and the minimum rotation speed
If between S2, X, Y for each stitch
The data size and the switching point feed amount L are determined by the control unit 1.
6. If the X or Y data exceeds L, a jump insertion operation is performed. If both the X and Y data are less than or equal to L, the jump insertion operation is not performed and normal operation is performed.

Next, as shown in Fig. 5, if the current rotational speed S _o of the sewing machine main shaft motor 18 is lower than the minimum rotational speed S2, the jump insertion operation is not performed regardless of the size of the X and Y data. , perform normal embroidery operations.

As is clear from the above, the more points there are in the intermediate rotation speed S and the switching point feed amount L corresponding thereto, the finer the jump condition switching can be performed. Therefore, a plurality of series of switching point data generating sections 6 may be provided, and the intermediate rotation speed S may be set at a plurality of points.

FIG. 6 is a block diagram showing another embodiment of the control condition setting section 10. Here, data indicating the current rotation speed S _o of the sewing machine main shaft motor 18 is used as the jump insertion condition setting data instead of the above-mentioned arbitrary intermediate rotation speed S. In this case, the value of the switching point feed amount L generated by the switching point data generating section 6 changes in accordance with the change in the current rotational speed S _o . FIG. 7 shows an example of the control contents of the jump control section 16 when the jump insertion operating conditions are set according to the example of FIG. 6. In this case, the magnitude of the X and Y data for each stitch and the switching point feed amount L are compared regardless of the rotational speed of the sewing machine main shaft motor 18. When the X, Y data exceeds L, a jump command signal is given to the jump solenoid 20, and based on this, a jump insertion operation is performed in which the X, Y data is divided into a plurality of values less than L. When the X and Y data do not exceed L, no jump command signal is output, and as a result, normal embroidery operation is performed.

In the example shown in FIG. 6, the range of normal operation varies continuously according to the current rotational speed S _o as described above, so it is more efficient than the example shown in FIG. 1. In the example in Figure 6, if there are many jumps during operation, the current rotational speed
You can immediately adjust it to lower the S _o and eliminate the jump.

FIG. 8 is a block diagram showing still another embodiment of the control condition setting section 10. Here, a switching point feed amount input section 25 is provided in place of the rotation speed input section 2, and the switching point feed amount L is inputted as jump insertion condition setting data. Furthermore, the configuration of the switching point data generating section 6 has been changed. In the moving time calculation circuit 27, the set input feed amount L
The moving time of the embroidery frame corresponding to is calculated. The rotation speed calculation circuit 28 calculates the maximum rotation speed of the main shaft of the sewing machine at which the embroidery frame can be moved by the time calculated by the circuit 27. The rotational speed data obtained here is given to the weight correction circuit 29, where it is corrected in accordance with the weight data W, as described above, and output as data of the intermediate rotational speed S.

In the example shown in Figure 1, the intermediate rotation speed S is set and input,
The corresponding switching point feed amount L is determined by the weight data W.
However, in the example shown in Fig. 8, on the contrary, the switching point feed amount L is set and input, and the corresponding intermediate rotation speed S is corrected according to the weight data W. Therefore, the 8th
In the example shown in the figure, data given to the jump control unit 16 as jump insertion operation condition data are S1, L1, S, L, S2, L2, exactly the same as in the example shown in FIG.
The content of control of the jump insertion operation based on this is also exactly the same as that described with reference to FIGS. 3 to 5. According to the example in Fig. 8, the feed amount L is set and input, so when the rotation speed of the sewing machine main shaft motor 18 is between S and S2, jump insertion is performed when the X and Y data are greater than any size. This makes it possible to predict whether or not this will occur.

FIG. 9 is a block diagram showing yet another embodiment of the control condition setting section 10. Here, input section 3
1, both the intermediate rotation speed S and the switching point feed amount L are input as jump insertion condition setting data. The switching point data generating section 6 is a range checking circuit 32.
It is made up of The range inspection circuit 32 determines the range of possible embroidery frame feed amounts for the sewing machine rotation speed (for convenience, this is referred to as the operable range) based on the maximum rotation speed S1, the minimum feed amount L1, the maximum feed amount L2, and the minimum rotation speed S2. Then, this range is corrected according to the weight data W, and it is checked whether the input data S and L are within this range. This operable range is the diagonally shaded range in Figure 10, S1,
This is a range closed by a straight line connecting the intersection of L1 and the intersection of S2 and L2, and a straight line with S1 as the upper limit of the rotation speed and L2 as the upper limit of the feed amount. This range is corrected by moving the position of the straight line connecting the intersection of S1 and L1 and the intersection of S2 and L2 in accordance with the weight data W. In the range checking circuit 32, if the set input data S and L are within the above-mentioned operable range, the range checking circuit 32 outputs the data as is as jump insertion operating condition data. Unless the input S and L values are within the above range, these data will not be output as jump insertion operating condition data. In that case, it is preferable to instruct the user to change the values of the manual setting data S and L by, for example, displaying an appropriate error message. Alternatively, data S and L outside the range may not be automatically accepted when the settings are input.

When the jump insertion operation conditions are set according to the example of FIG. 9, examples of the control contents of the jump control section 16 are as shown in FIGS. 11 to 13. This first
Figures 1 to 13 correspond to Figures 3 to 5, and the difference is that the intersection of S and L, that is, the intermediate switching point, is not necessarily the straight line connecting S1, L1 and S2, L2. It is a point that is not located at the top. This is because S and L are set separately. Therefore, Figure 1, Figure 6,
This is not necessarily more efficient than the example shown in FIG. However, since both S and L are set arbitrarily, the operator can set arbitrary jump conditions according to various conditions such as the material of the cloth and sewing data.

Fig. 14 shows another embodiment of an automatic embroidery sewing machine to which the present invention is applied, in which jump control is not performed, but the same objective is achieved by controlling the sewing machine rotation speed. . The difference from FIG. 2 is that a rotation speed switching control section 101 is provided in place of the jump control section 16. From the control condition setting section 100, data S1, L1, S,
L, S2, and L2 are generated, but these function as sewing machine rotation speed switching operation condition data rather than jump insertion operation condition data.

The rotation speed switching control section 101 performs rotation speed switching control using various data S1 to L2 given from the control condition setting section 100 as rotation speed switching operation condition data, and controls the rotation speed switching for each stitch of the sewing pattern. It is determined whether or not the Y-axis feed amount requires rotation speed switching based on the relationship between the current rotation speed _So and the rotation speed switching operation conditions, and based on this, a rotation speed switching command signal is output. The output rotation speed switching command signal is given to the sewing machine main shaft motor driver 102. Driver 102
switches the rotational speed of the sewing machine main shaft motor 18 based on this rotational speed switching command signal. In FIG. 14, devices having the same reference numerals as those shown in FIG. 2 indicate the same components, and therefore their explanations will be omitted. Note that the frame movement control circuit 23 receives the X and Y data read from the reader 17 as is.

Figure 15 shows the control condition setting section 1 in Figure 14.
00, and this configuration itself is the same as the control condition setting section 10 shown in FIG.
However, the switching point feed amount input section 25 is for inputting the switching point feed amount L as rotation speed switching condition setting data. Similarly to the above, each data L1, S2, S corrected according to the weight data W is generated from each data generating section 4, 5, 6.

An example of rotation speed switching control by the rotation speed switching control section 101 when setting control conditions according to the example of FIG. 15 will be described with reference to FIGS. 16 to 18. As shown in FIG. 16, when the current rotational speed S _o of the sewing machine main shaft motor 18 is between the maximum rotational speed S1 and the intermediate rotational speed S, the magnitude of the X and Y data for each stitch and the minimum feed amount L1 and the switching point feed amount L are compared. X, Y data
When the rotation speed does not exceed L1, the rotation speed switching command signal is not output, and the current rotation speed S _o of the motor 18 is maintained. When the X, Y data exceeds L1 and is below L, a rotation speed switching command signal instructing the intermediate rotation speed S is given to the driver 102, and based on this, the rotation speed of the motor 18 is increased to the intermediate rotation speed S. Can be lowered. When the X and Y data exceed L, a rotation speed switching command signal instructing the minimum rotation speed S2 is given to the driver 102, and based on this, the rotation speed of the motor 18 is lowered to S2.

The current rotational speed of the motor 18 as shown in FIG.
When S _o is between S and S2, the magnitude of the X and Y data for each stitch is compared with the switching point feed amount L. When the X and Y data do not exceed L, the rotation speed switching command signal is not output, and the current rotation speed S _o of the motor 18 is maintained. When the X and Y data exceed L, a rotation speed switching command signal instructing S2 is given to the driver 102,
Based on this, the rotation speed of the motor 18 is lowered to S2.

The current rotation speed of the motor 18 as shown in FIG.
When S _o is less than S2, the rotation speed switching command signal is not output regardless of the magnitude of the X and Y data, and the current rotation speed S _o is maintained.

The rotational speed switching control described above may be performed for each stitch, but it may also be performed for each block by combining a predetermined number of stitches into one block. When performing each stitch, in order to ensure the movement of the embroidery frame and to rotate the motor 18 at a higher speed, when increasing the rotation speed, the X and Y data of the stitch are input. It is preferable to make the switch at a certain point, and then, when lowering the rotational speed, to make the switch from a stitch several stitches before the relevant stitch.

Figure 19 shows the control condition setting section 1 in Figure 14.
FIG. 2 is a block diagram showing another embodiment of 00. Here, the moving time calculation circuit 27 of the switching point data generation section 6 contains X- or Y-axis feed amount data Ls for each stitch in the actual sewing pattern (more specifically, the larger value of the X or Y data ) is input. Therefore, in this case, the data generation section 6
The intermediate rotational speed S obtained from is the highest rotational speed that can realize the input feed amount Ls without jump control.

An example of the rotation speed switching control by the rotation speed switching control section 101 when setting control conditions according to the example of FIG. 19 will be described with reference to FIGS. 20 and 21. As shown in FIG. 20, when the current rotational speed _So of the sewing machine main shaft motor 18 does not exceed the intermediate rotational speed S, the rotational speed switching command signal is not output and the current rotational speed _So is maintained. On the other hand, as shown in FIG. 21, when the current rotational speed S _o exceeds S, a rotational speed switching command signal instructing the intermediate rotational speed S is given to the driver 102, and based on this, the motor 18 is switched. The rotation speed is reduced to S.
In this case, the current rotation speed S _o does not need to be a value obtained by detecting the actual rotation speed of the main shaft of the sewing machine, and may be data manually set by a separately provided sewing machine rotation speed setting means. In addition, the control method is the 20th
The present invention is not limited to the examples shown in FIGS. 21 and 21, and the data on the intermediate rotation speed S generated from the data generating section 6 may be used as is as data for commanding the actual sewing machine rotation speed. In that case, the sewing machine can always be operated at the fastest rotational speed according to the embroidery stitch pattern data (Ls).

In addition, in the case of the example shown in FIG. 19, similarly to the above,
The rotation speed switching control can be performed for each stitch or for each block.

Figure 22 shows the control condition setting section 1 in Figure 14.
This shows yet another embodiment of 00, and this configuration itself is the same as the control condition setting section 10 shown in FIG. However, the input section 31 is for inputting both the intermediate rotation speed S and the switching point feed amount L as rotation speed switching condition setting data. Range inspection circuit 3
2, the data L1, S1, L2, S2 as before
The drivable range is determined in accordance with this, and this range is corrected in accordance with the weight data W, and it is checked whether or not the input data S and L are within this range.

When the rotational speed switching operation conditions are set according to the example of FIG. 22, examples of the control contents of the rotational speed switching control section 101 are as shown in FIGS. 23 to 25.
These Figs. 23 to 25 correspond to Figs. 16 to 18, and the difference is that the intersection of S and L, that is, the intermediate switching point does not necessarily correspond to S1, L1 and S2, L2. It is a point that is not located on the connecting straight line. This is S and L
This is because they are set separately. Therefore, the 15th
This is not necessarily more efficient than the example shown in the figure or FIG. 19. However, since both S and L are set arbitrarily, the operator can set arbitrary jump conditions according to various conditions such as the material of the cloth and sewing data.

In the embodiments shown in FIG. 1, FIG. 6, FIG. 8, FIG. 15, and FIG. It is also possible to input data W (that is, parameters related to frame movement speed) and perform correction calculations thereon.

Further, in each of the embodiments described above, weight data is input as a parameter regarding the frame movement speed, but this may be other data, such as data corresponding to the thickness of the fabric.

Further, in each of the above embodiments, only one of the jump control and the rotational speed switching control is performed, but both controls may be performed in combination.

Furthermore, in each of the above embodiments, the control condition setting section, jump control section, rotation speed switching control section, etc. are configured by hardware circuits, but equivalent functions can be implemented by software processing using a microcomputer. You can do it like this.

In addition, graphs showing control contents (for example, Fig. 3~
The rotation speed/feed amount function in FIG. 5) may be a function other than a straight line.

〔Effect of the invention〕

As described above, according to the present invention, the control conditions for needle bar jump control and sewing machine spindle rotation speed control are corrected according to the parameters related to the embroidery frame movement speed, so that the embroidery frame and the product set therein can be adjusted. This provides an excellent effect in that efficient jump control and rotation speed control can be performed taking into account the frame moving speed that is variably set according to the weight and the like.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the control system of the automatic embroidery sewing machine according to the present invention, and FIG.
FIG. 2 is a block diagram illustrating the overall control system of an automatic embroidery sewing machine to which the same embodiment is applied, and FIG.
5 to 5 are graphs showing examples of needle bar jump control contents executed based on the embodiment shown in FIG. 1, and FIG. 6 is a block diagram showing another embodiment of the present invention applied to FIG. 2. FIG. 7 is a graph showing an example of the needle bar jump control contents executed based on the embodiment of FIG. 6, and FIGS. 8 and 9 are graphs showing still other embodiments of the present invention applied to FIG. 2, respectively. Block diagram shown,
10 to 13 are graphs showing examples of needle bar jump control contents executed based on the embodiment of FIG. 9, and FIG. 14 is an overall diagram of an automatic embroidery sewing machine to which another control method according to the present invention is applied. FIG. 15 is a block diagram showing an embodiment of another control system according to the present invention, and shows an example of the internal configuration of the control condition setting section in FIG. 14. 16 to 18 are graphs showing an example of the sewing machine main shaft rotation speed switching control contents executed based on the embodiment of FIG. 15, and FIG. 19 is a graph showing another embodiment of the present invention applied to FIG. 14. 20 and 21 are graphs showing an example of the sewing machine main shaft rotation speed switching control contents executed based on the embodiment shown in FIG. 19, and FIG.
23 to 25 are graphs showing an example of the details of the sewing machine main shaft rotation speed switching control executed based on the embodiment of FIG. 22. be. 10,100... Control condition setting section, 1... Weight parameter setting section, 2... Rotation speed input section, 3...
Frame movement speed setting circuit, 4, 5, 6...Data generation section, 7, 27...Time calculation circuit, 8...Feed amount calculation circuit, 28...Rotation speed calculation circuit, 9, 29...
Weight correction circuit, 25... Feed amount input section, 31...
Input section, 16... Jump control section, 101... Rotation speed switching control section.

Claims (1)

[Scope of Claims] 1. Parameter supply means for supplying a parameter regarding the moving speed of the embroidery frame; and controlling the movement of the embroidery frame according to the frame feed amount setting data, and controlling the moving speed of the embroidery frame according to the parameter. frame movement control means for controlling the needle bar; input means for inputting data to set jump insertion conditions for jumping the needle bar; and jump insertion based on the jump insertion condition setting data input by the input means. Generating at least one of embroidery frame feed amount data and sewing machine rotation speed data that indicate operating conditions, and correcting the generated embroidery frame feed amount data or sewing machine rotation speed data in accordance with a parameter related to the moving speed of the embroidery frame. a data generating means; and a current value of the frame feed amount setting data and the sewing machine rotation speed data based on the embroidery frame feed amount data or the sewing machine rotation speed data that instructs the jump insertion operating conditions generated by the data generation means. A control system for an automatic embroidery sewing machine, which is equipped with a jump control means for controlling jumps of a needle bar accordingly. 2. A control system for an automatic embroidery machine according to claim 1, wherein the parameters supplied by the parameter supply means are set according to the weight of the embroidery frame and the product set in the embroidery frame. . 3. The jump insertion condition setting data inputted by the input means is data instructing an arbitrary sewing machine rotation speed, and the data generating means generates the feed amount data corresponding to this sewing machine rotation speed instruction data as jump insertion operation condition data. 2. A control system for an automatic embroidery sewing machine according to claim 1, wherein the automatic embroidery sewing machine generates an embroidery machine. 4. The jump insertion condition setting data inputted by the input means is data corresponding to the actual sewing machine rotation speed, and the data generation means uses the feed amount data corresponding to this data corresponding to the sewing machine rotation speed as jump insertion operation condition data. 2. A control system for an automatic embroidery sewing machine according to claim 1, wherein the automatic embroidery sewing machine generates an embroidery machine. 5. The jump insertion condition setting data inputted by the input means is data that instructs an arbitrary embroidery frame feed amount, and the data generation means converts the sewing machine rotation speed data corresponding to this feed amount instruction data into jump insertion operation condition data. A control system for an automatic embroidery sewing machine according to claim 1, which generates the following. 6. The jump insertion condition setting data inputted by the input means is data instructing an arbitrary number of rotations of the sewing machine and data instructing an arbitrary embroidery frame feed amount, and the data generating means inputs these data into a predetermined sewing machine operation. 2. A control system for an automatic embroidery sewing machine according to claim 1, wherein the sewing machine rotation speed instruction data and feed amount instruction data are generated as jump insertion operation condition data on the condition that the sewing machine rotation speed instruction data and the feed amount instruction data are within the range. 7. Parameter supply means for supplying a parameter regarding the speed of the embroidery frame; Frame movement control means for controlling the movement of the embroidery frame according to the frame feed amount setting data and controlling the movement speed of the embroidery frame according to the parameter. and input means for inputting data for setting sewing machine rotation speed switching conditions, and generating data for instructing sewing machine rotation speed switching operation conditions based on the sewing machine rotation speed switching condition setting data inputted by the input means. and data generating means for correcting the generated sewing machine rotational speed switching operating condition data in accordance with a parameter related to the moving speed of the embroidery frame, based on the sewing machine rotational speed switching operating condition data generated from the data generating means, A control method for an automatic embroidery sewing machine, comprising a rotation speed switching control means for controlling the sewing machine rotation speed switching according to the current value of the frame feed amount setting data and the sewing machine rotation speed data. 8. A control system for an automatic embroidery machine according to claim 7, wherein the parameters supplied by the parameter supply means are set according to the weight of the embroidery frame and the product set in the embroidery frame. 9 The sewing machine rotation speed switching condition setting data inputted by the input means is data that instructs an arbitrary embroidery frame feed amount, and the data generation means converts the sewing machine rotation speed data corresponding to this feed amount instruction data into the sewing machine rotation speed. 8. A control method for an automatic embroidery sewing machine according to claim 7, wherein the control method is generated as switching operation condition data. 10 The sewing machine rotation speed switching condition setting data inputted by the input means is actually feed amount data in the embroidery sewing pattern, and the data generating means converts the sewing machine rotation speed data corresponding to this feed amount data into the sewing machine rotation speed switching operation. 8. A control method for an automatic embroidery sewing machine according to claim 7, wherein the control method is generated as condition data. 11 The sewing machine rotational speed switching condition setting data inputted by the input means is data instructing an arbitrary sewing machine rotational speed and data instructing an arbitrary embroidery frame feed amount, and the data generating means is configured to input the sewing machine rotational speed switching condition setting data by using the input means. Claim 7: The sewing machine rotation speed instruction data and the feed amount instruction data are generated as sewing machine rotation speed switching operation condition data on the condition that the sewing machine rotation speed is within the sewing machine operation range.
Control method of automatic embroidery sewing machine described in section.