JP2005253605A - Embroidery sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stabilize the quality of stitch in embroidery sewing regardless of scaling. <P>SOLUTION: In an embroidery sewing machine 10, a sewing needle 14 repeats its zigzag swinging relative to a sewn object and advances in a direction crossing the swinging for pattern formation. The embroidery sewing machine includes a sewing means for performing embroidery while positioning the sewing needle relative to the sewn object sequentially, a storage means 82 for storing embroidery pattern data for specification of a pattern to be embroidered, a size data input means 50 for receiving the input of scaled size data of the pattern to be embroidered, and an operation control means 80 for controlling the sewing means so that a repeated swinging pitch is reduced as the size data is enlarged. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an embroidery sewing machine for enlarging / reducing embroidery pattern data.

  A conventional embroidery sewing machine has a storage means for storing pattern data for embroidering an embroidery pattern at a reference size, an input means for receiving an input of an enlargement / reduction ratio with respect to the reference size of the pattern, Magnification change processing means for generating variable magnification pattern data indicating new needle drop position coordinates based on the enlargement / reduction ratio is provided, and embroidery is performed according to an arbitrary magnification input for the embroidery pattern (see, for example, Patent Document 1). .

If the position coordinates of the needle drop position indicated by the pattern data of the standard size are enlarged as they are, the density of the embroidery thread becomes sparse with respect to the size of the pattern. It tends to be too dense.
Therefore, in the conventional embroidery sewing machine, the magnification change data is generated by the magnification changing means so that the sewing is performed at the same pitch in the traveling direction regardless of the enlargement / reduction, and the sewing is performed according to the data.
Japanese Patent Publication No. 61-16193

However, in the conventional example, the number of stitches is increased or decreased in order to make the sewing interval constant in the sewing progress direction, but the number of stitches remains constant in the width direction in which the needle bar reciprocates. It was.
In such a case, since the thickness of the embroidery thread is constant, if the embroidery pattern is enlarged, the width of the embroidery pattern may become relatively sparse in the width direction, and the sewing finish may appear rough. As a result, there is a problem that the number of needles concentrates in a narrow area, and the possibility of thread breakage increases.
It is an object of the present invention to maintain high sewing quality regardless of variations in the size at which an embroidery pattern is sewn.

  The invention according to claim 1 is an embroidery sewing machine in which the sewing needle repeatedly swings in a sawtooth shape relative to the workpiece, and proceeds in a direction crossing the swing to form a pattern. Sewing means for performing embroidery sewing while sequentially positioning the workpiece and the workpiece to be sewn, storage means for storing embroidery pattern data for specifying the embroidery pattern, and enlargement / reduction size data for sewing the embroidery pattern A configuration is adopted in which size data input means for receiving input and operation control means for controlling the sewing means so as to reduce the pitch of the shake that is repeated as the size data to be inputted becomes larger are adopted.

In the above configuration, the size data of the sewing pattern is input by the size data input unit, and the sewing unit executes sewing of the embroidery pattern based on the size data. At this time, the sewing means performs the sewing by reducing the pitch when the embroidery pattern in the input size data becomes large and performs the sewing by increasing the pitch when it becomes small under the control of the operation control means.
The size data input by the size data input means may be a pattern size value for embroidering in addition to the magnification. Further, there may be a plurality of options for size and magnification, and data indicating the options may be used. In other words, the size data here may be any data that can specify the pattern size to be embroidered from the data.

  The invention according to claim 2 has the same configuration as that of the invention according to claim 1, and the operation control means specifies the pitch so as to become smaller as the size of the embroidery pattern in the inputted size data becomes larger. And a data generation unit that generates positioning data between the sewing needle and the sewing product based on the specified pitch, input size data, and embroidery pattern data.

In the second aspect of the invention, when the size data of the sewing pattern is input by the size data input means, the specifying means specifies the pitch according to the pattern size corresponding to the size data. For example, this specification may be performed by referring to a correspondence map of pitches that tend to decrease as the pattern size in the input size data increases, calculated by a function that indicates the same trend, or otherwise indicating the same trend and size. If it is determined, some processing for determining the pitch is performed.
Then, the data generation means calculates a needle drop position corresponding to the embroidery pattern based on the size data from the obtained pitch, size data, and embroidery pattern data, and generates positioning data indicating each position coordinate.
Then, embroidery sewing is executed according to the generated positioning data by the function of controlling the sewing means of the operation control means.

  The invention described in claim 3 has the same configuration as that of the invention described in claim 1, and the storage means stores size data in which the pitch of the shake is set smaller as the size of the embroidery pattern increases for the same embroidery pattern. A plurality of embroidery pattern data corresponding to the plurality of values is stored, and the operation control means controls the sewing means based on the embroidery pattern data corresponding to the input size data.

According to the third aspect of the present invention, when the size data is input by the size data input means, the operation control means selects the embroidery pattern data corresponding to the pattern size based on the size data with reference to the storage means And refer to it.
The embroidery pattern data in this case includes data indicating the needle drop position, and the operation control means refers to this to control the sewing means to execute embroidery sewing.

The invention described in claim 4 has the same configuration as that of the invention described in claim 1, 2 or 3, and further includes a pitch setting input means for receiving a pitch value setting input.
The pitch value is set within a range in accordance with the condition that the pitch decreases with an increase in the size of each pattern size corresponding to the size data.

  According to the first aspect of the present invention, since the sewing means performs the sewing by reducing the pitch when the size of the embroidery pattern to be sewn becomes larger by the control of the operation control means, the pitch is kept constant regardless of the size. Compared to the conventional example, dense embroidery sewing is performed when the size is enlarged, and the influence of the sparse state in the swing width direction due to the enlargement can be suppressed. Further, since the sewing is performed by increasing the pitch when the size is reduced under the control of the operation control means, the number of needle drop points in a narrow region can be reduced, and the occurrence of thread breakage can be suppressed. Thus, it is possible to improve the sewing quality.

  According to the second aspect of the present invention, since the operation control means includes the size data input means for specifying the pitch according to the pattern size in the input size data and the data generation means for generating the positioning data, it is stored in the storage means in advance. The embroidery pattern data to be performed does not need to include data relating to the pitch and positioning data of the needle drop position, and the data amount can be reduced.

In the invention described in claim 3, since the embroidery pattern data corresponding to each size data is prepared in the storage means, the processing after the size data input can be simplified and the processing can be speeded up. It becomes possible.
Furthermore, according to the fourth aspect of the present invention, it is possible to perform setting input of the pitch value, and it is possible to adjust the pitch according to the pattern size, and it is possible to further improve the sewing quality.

(Overall configuration of the embodiment)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, a sewing machine 10 is illustrated as an embroidery sewing machine that can sew an embroidery pattern by adding a detachable frame moving means 18 described later while enabling normal sewing. FIG. 1 is an overall view showing an outline of an embroidery sewing machine 10, and FIG. 2 shows its control system. In the embroidery sewing machine 10, the sewing needle 14 repeatedly swings in a sawtooth shape (zigzag) relative to the cloth that is the sewing object, and proceeds in a direction crossing the swing direction to form a pattern.
The embroidery sewing machine 10 has an outline outline of a sewing machine bed 11 located at a lower part thereof, a sewing machine body 12 raised upward from one end of the sewing machine bed 11, and an upper part of the sewing machine body 12. A sewing machine arm 13 is provided to extend along the sewing machine bed 11.

Further, as shown in FIGS. 1 and 2, the embroidery sewing machine 10 includes a sewing needle 14 supported so as to be vertically movable below a sewing machine head 13a (left end in FIG. 1) of the sewing machine arm 13, and a sewing machine arm 13. Is provided at the lower part of the sewing machine head 13a and supports the sewing needle 14 and is driven in the vertical direction by the needle driving means 15, and is supported by the needle driving means 15 together with the sewing needle 14 and moves up and down together with the sewing needle 14 during embroidery sewing. An embroidery frame 17 that is installed below the sewing needle 14 and holds the cloth as a sewing object in a stretched state along a vertical plane with respect to the sewing needle 14, and the sewing needle of the sewing machine bed 11. There are provided a frame moving means 18 which is provided at the opposite position and drives the embroidery frame 17 in both directions perpendicular to the sewing needle 14 and perpendicular to each other, and a thread trimming cutter (not shown). A thread trimming solenoid 19 to be performed, an operation panel 50 for inputting instructions and settings relating to the operation of the sewing machine 10 and displaying information necessary for the instructions and the current state; It has.
The needle driving means 15 and the frame moving means 18 constitute sewing means for performing embroidery sewing while sequentially positioning the sewing needle 14 and the fabric relative to each other.

  Further, a start / stop switch (hereinafter abbreviated as S / S switch) 20 for starting / stopping sewing and a reverse stitching are performed on the sewing machine head 3a at the left end of the sewing machine arm 3 shown in FIG. A reverse stitching switch 21 for inputting an instruction for sewing, a thread trimming switch 22 for inputting an instruction for thread trimming after sewing, and a slide volume 23 for adjusting the sewing speed are provided in order from below. It has been.

In the following description, the direction in which the sewing needle 14 moves up and down is the Z-axis direction, and the direction in which the embroidery frame 17 is moved in the left-right direction in FIG. 1) is the X-axis direction, and the direction in which the embroidery frame 17 is moved in the front-rear direction in FIG. 1 by the frame moving means 18 is the Y-axis direction (the other of the two directions perpendicular to each other). I will do it.
The sewing machine 10 shown in the present embodiment can perform normal sewing with the embroidery frame 17 and the frame moving means 18 removed. Therefore, the configuration necessary for performing embroidery sewing and its operation control will be mainly described.

(Needle drive means)
The needle drive means 15 includes a sewing machine motor 24 as a drive source, converts the rotation output into a vertical movement via a crank mechanism, and moves the sewing needle 14 up and down. The needle driving means 15 supports the cloth presser 16 together with the sewing needle 14 and moves up and down together with the sewing needle 14. Further, the cycle of the vertical movement of the sewing needle 14 is determined by the operation control of the operation control means 80, and it is possible to input a setting change of the vertical movement cycle from the operation panel 50. Further, the sewing machine motor 24 is provided with an encoder 29 for detecting a change in the rotation angle amount of the output shaft, and the detected rotation angle is output to the operation control means 80.

(Embroidery frame and frame moving means)
The embroidery frame 17 is composed of an inner frame and an outer frame each having a substantially rectangular shape, and a fabric is sandwiched between them to form a substantially rectangular planar region of the fabric inside the frame. The embroidery frame can be selectively mounted in three sizes of large, medium and small, and the illustrated embroidery frame 17 is of the maximum size. In the following description, it is assumed that the maximum embroidery frame 17 is used unless otherwise specified.

  The frame moving means 18 includes a carriage 25 supported on the upper surface of the sewing bed 11 so as to reciprocate in the X-axis direction, an X-axis motor 26 for driving the carriage 25, and an embroidery supported on the carriage 25 so as to reciprocate in the Y-axis direction. A frame mounting portion 27 and a Y-axis motor 28 that reciprocates the embroidery frame 17 in the Y-axis direction via the embroidery frame mounting portion 27 are provided. The X-axis motor 26 and the Y-axis motor 28 are both stepping motors, and can control the amount of rotation angle that is driven in minute angle units. The frame moving means 18 includes conversion means for converting rotational drive outputs of the X-axis motor 26 and the Y-axis motor 28 into drive outputs in the linear motion direction. Accordingly, the frame moving means 18 can freely move the embroidery frame 17 along the XY plane by the cooperation of the movement of the carriage 25 and the movement of the embroidery frame mounting portion 27. Further, the frame moving means 18 is configured to operate the axis motors 26 and 28 according to operation commands indicating movement amounts in the X-axis direction and the Y-axis direction based on the needle drop position corresponding to the embroidery pattern output from the operation control means 80. By performing drive control, the embroidery frame 17 is moved in each axial direction to relatively position the sewing needle 14 at a predetermined needle drop position. The X-axis / Y-axis motors 26 and 28 are provided with encoders 30 and 31 for detecting a change in the amount of rotation angle of each output shaft, and the detected rotation angle is output to the operation control means 80.

(control panel)
The operation panel 50 is overlapped on a liquid crystal display 51 as an image display means for displaying an operation screen for performing an embroidery operation, which will be described later, information display for explaining the operation, and an embroidery pattern image, and the display surface of the liquid crystal display 51. And a touch panel 52 which is a transparent pressure sensitive switch provided. The touch panel 52 can sense at which position on the surface the user of the sewing machine has touched the fingertip. On the other hand, the liquid crystal display 51 displays various switches for the user of the sewing machine to instruct input on the operation screen according to an operation program described later by the operation control means 80. Therefore, the operation control means 80 receives the output of the touch panel 52, recognizes which position is touched, and collates whether it is an instruction input to any switch displayed on the liquid crystal display 51 at that time. As a result, it is recognized which instruction input is made by the user of the sewing machine, and the subsequent processing is advanced according to the instruction.

(Operation control means: overall configuration)
The operation control means will be described with reference to FIG. FIG. 2 is a block diagram showing a control system of the sewing machine 10.
The operation control means 80 includes a CPU 81 that performs arithmetic processing according to various programs, a ROM 82 connected thereto, a RAM 83 that serves as a work area for temporarily storing data and the like in various processes, and an input / output interface of each configuration described later. It consists of a microcomputer board.

  The RAM 83 is a work area for temporarily storing data and the like in sewing work and display processing. Specifically, for example, the RAM 83 stores the embroidery pattern data selected by the operation panel 50, the movement amount of the embroidery frame 17 in the X and Y directions by the frame moving means 18, and the like.

  The ROM 82, which is an internal storage device, stores embroidery pattern data in addition to control programs and control data for executing sewing operations in the sewing machine 10 and display processing of the operation panel 50 associated therewith. It also functions as a means. Examples of the control data include embroidery pattern data related to various embroidery patterns, image data to be displayed on the operation panel 50 in accordance with an operation program, and the like.

Further, the operation control means 80 is provided with a ROM card reader 84 which is a reading means for an external storage medium, and embroidery pattern data other than the data stored in the ROM 82 in the operation control means 80 is stored. The embroidery pattern data can be supplied from a ROM card 84a as an external storage medium.
The ROM card 84a also functions as embroidery pattern data storage means. Note that the external storage medium is not limited to the ROM card, but includes any storage medium stored via communication means such as the Internet, and any general storage medium that encodes and stores information may be used. Further, any storage medium reader may be provided in the operation control means 80.

  As shown in FIG. 3, the embroidery pattern data is divided into a plurality of square blocks B with respect to a specific pattern M in the standard size, and each block B having a point on or near the pattern M as a reference position. Data indicating the position coordinates a0, b0, a1, b1, a2, b2,..., And data indicating the size S of the standard size pattern M are included.

(Operation control means: CPU)
The CPU 81 performs embroidery stitching operations using various signals and data inputted based on the control program, control data, embroidery pattern data, or control data in the ROM card 84a, embroidery pattern data, etc. written in the ROM 82. And various display processes on the operation panel 50 are controlled.
Input signals include an ON / OFF signal from the S / S switch 20, the reverse stitching switch 21 and the thread trimming switch 22 through various interfaces, a set speed signal from the slide volume 23, the sewing machine motor 24 of the needle driving means 15 and the frame. Examples thereof include detected rotation angle signals of the encoders 29, 30, 31 provided in the X-axis / Y-axis motors 26, 28 of the moving means 18, input position signals from the touch panel 52, and the like.

Further, when an embroidery pattern is selected from the operation panel 50 according to the control program and size data indicating the embroidery magnification is input, the CPU 81 is based on the standard pattern size S of the embroidery pattern and the input size data. A process of multiplying the pattern size for embroidery from the magnification and storing it in the RAM 83 is performed.
Further, the CPU 81 executes processing as a pitch specifying unit that specifies the pitch of the shake that is repeated at the time of sewing based on the size of the embroidery pattern to be embroidered according to the control program. That is, referring to a map described later, a pitch corresponding to the pattern size is specified and stored in the RAM 83.

Here, the ROM 82 stores a map in which an appropriate pitch value is stored for each stepwise range of the pattern size to be embroidered. In such a map, the width of the corresponding pitch is set so as to decrease as the pattern size increases.
An example is shown in FIG. As shown in FIG. 4 (A), the pitch is set to 0.4 [mm] in the range of the pattern size 45 to 60 [mm], and as shown in FIG. 4 (B), the pitch is 12 to 45 [mm]. In the range, the pitch is set to 0.5 [mm], and as shown in FIG. 4C, the pitch is set to 0.6 [mm] in the pattern size range of 7 to 12 [mm]. The map is set in the range from the minimum value 7 [mm] to the maximum value 60 [mm] of the embroidery pattern size that can be embroidered by the embroidery sewing machine 10, but is not limited to this range. .
Further, such a map is merely an example, and is not limited to each numerical value, and the pitch may be set in many steps with respect to the pattern size. Further, a function for calculating the pitch from the pattern size may be set, and the pitch may be calculated by calculation processing of the CPU 81.

Furthermore, the CPU 81 performs processing as data generation means for generating positioning data between the sewing needle 14 and the fabric based on the specified magnification and the embroidery pattern data based on the specified pitch and size data, according to the control program.
This process will be described in detail with reference to FIG. First, as described above, the original embroidery pattern data has data indicating the vertex position coordinates a0, b0, a1, b1, a2, b2,... For each block B that partitions the embroidery pattern. Therefore, the magnification based on the input size data is multiplied for each position coordinate of these vertices.
Next, according to the direction in which sewing is performed, the distance between a1 and a0 is divided by the specified pitch value, and the needle drop position coordinate data between the a1 and a0 is calculated from the divided value. For b1-b0, needle drop position coordinate data between b1-b0 is calculated based on the division value between a1-a0. Such calculation is performed for each block, and positioning data which is a set of position coordinates of the needle drop position of the entire embroidery pattern is generated, and the CPU 81 develops it in the RAM 83.

  Further, when the start of sewing is input in accordance with the control program, the CPU 81 synchronizes with the rotation cycle of the sewing machine motor 24 and sets the sewing needle 14 and the embroidery frame 17 to the needle drop position according to the positioning data stored in the RAM 83. Positioning is performed and operation control for forming an embroidery pattern on the fabric according to the input size data is executed.

FIG. 5 is a display example of a pitch width setting input screen on the operation panel 50. FIG. 5A shows an unadjusted state with respect to a specified value, and FIG. FIG. 5C shows a pitch width increase adjustment state with respect to the specified value. As described above, the operation panel 50 accepts a setting adjustment input of the pitch value for each band of the pattern size to be sewn.
Further, when there is a pitch value adjustment input from the operation panel 50 in accordance with the processing program, the CPU 81 stores the determined correction value in the RAM 83 as a new pitch value.
In addition, the pitch value in the pattern size band receiving the input is less than the pitch value in the larger pattern size band and larger than the pitch value in the smaller pattern size band. The process for accepting the adjustment is performed.

(Explanation of embroidery sewing machine operation)
The sewing process performed by the CPU 81 of the operation control means 80 of the embroidery sewing machine 10 having the above configuration will be described with reference to FIG. FIG. 6 is a flowchart showing an operation process of the embroidery sewing machine.
First, in a state where embroidery pattern data to be embroidered is selected in advance, it waits for input of size data from the operation panel 50 (step S1).
When the size data is input, the pattern size to be sewn is calculated by multiplying the pattern size S by the magnification based on the size data (step S2).

When the pattern size to be sewn is obtained, the CPU 81 refers to the map of the ROM 82 and specifies the pitch. First, it is determined whether the pattern size is in the range of 45 to 60 [mm] (step S3). If it is within the same range, the pitch is set to 0.4 [mm] and stored in the RAM 83 (step S4).
If the pattern size is not in the range of 45 to 60 [mm], it is determined whether the pattern size is in the range of 7 to 12 [mm] (step S5). If the pattern size is within the same range, the pitch is 0.6. [mm] is set and stored in the RAM 83 (step S6).
If the pattern size is not in any of the above ranges, it is determined that the pattern size is in the range of 12 to 45 [mm], the pitch is set to 0.5 [mm], and stored in the RAM 83 (step S7).
When the pitch is specified, each needle drop position for pattern formation is calculated from the pitch, input size data, and embroidery pattern data, position data is generated and the data is stored in the RAM 83 (step S8).

Next, input of the S / S switch 20 is awaited (step S9), and when there is an input, sewing is started (step S10). That is, the CPU 81 refers to the position data, and in synchronization with the rotation of the sewing machine motor 24, in order toward the position coordinates indicating each point of a0, b0, ..., a1, b1, ..., a2, b2, ... Control for driving the shaft motor 26 and the Y-axis motor 28 is performed, needle dropping is performed in order at each point, and embroidery sewing is executed according to the embroidery pattern.
Then, embroidery is performed on all points, and sewing is completed.

(Effect of embodiment)
In the embroidery sewing machine 10, a narrow pitch width is adopted when the size of the embroidery pattern to be sewn is increased by the processing of the CPU 81 of the operation control means 80, and conversely, when the embroidery pattern size is reduced, the pitch width is increased. Since the positioning data is created and sewing is performed, embroidery sewing is performed more densely when the pattern size is larger than when the pitch width is kept constant regardless of the pattern size. The influence of the sparse state in the swing width direction due to the enlargement of the pattern size can be suppressed.
Further, by controlling the CPU 81 of the operation control means 80, when the pattern size is reduced, the pitch is increased and sewing is performed. Therefore, the number of needle drops in a narrow area can be reduced, and the occurrence of thread breakage can be suppressed. Thus, it is possible to improve the sewing quality.

Further, since the CPU 81 performs a process for specifying the pitch based on the pattern size in the input size data and a process for generating the positioning data, the embroidery pattern data stored in the storage means in advance includes data relating to the pitch and the needle. It is not necessary to include the positioning data of the drop position, and the data amount can be reduced.
In addition, since correction of the pitch value of each pattern size is accepted from the operation panel 50, it is possible to set a suitable pitch for each pattern size, and to further improve the sewing quality.

(Other)
In the embroidery sewing machine 10 described above, only one embroidery pattern having each block vertex coordinate data and size is recorded in the ROM 82 or the ROM card 84a of the operation control means 80 for each type of embroidery pattern. The data is not limited to this.
For example, for one type of embroidery pattern, a number of embroidery pattern data corresponding to a plurality of sizes (or input magnifications) may be prepared in advance in the ROM 82 or the ROM card 84a. In this case, each embroidery pattern data is preferably configured to include positioning data indicating each needle drop position calculated in advance.
Then, when the size data is input, the CPU 81 may read out the embroidery pattern data having a size corresponding to the magnification based on the size data, and control to execute sewing based on the embroidery pattern data.
In such a case, since the embroidery pattern data corresponding to each size data is prepared in the RAM 83 in advance, the processing after the size data is input is simplified and, for example, sewing is performed immediately after the size data is input. It is possible to speed up processing such as execution.
In the present embodiment, the size data is data for specifying the sewing magnification. However, the size data may be data indicating the size.
The size data may be configured to select and specify one of a plurality of candidates.

1 is an overall view showing an outline of an embroidery sewing machine according to an embodiment of the invention. It is a block diagram which shows the control system of an embroidery sewing machine. FIG. 3A is an explanatory view showing the concept of embroidery pattern data, and FIG. 3B is a partially enlarged view thereof. FIGS. 4A and 4B are explanatory diagrams showing pitches and embroidery states in various pattern sizes. FIG. 4A shows a maximum pattern size band, FIG. 4B shows an intermediate pattern size band, and FIG. ) Indicates the minimum band of the pattern size. FIG. 5A is a display example of a pitch width setting input screen on the operation panel, FIG. 5A shows an unadjusted state with respect to a specified value, FIG. 5B shows a pitch width decrease adjusted state with respect to the specified value, and FIG. C) shows the pitch width increase adjustment state with respect to the specified value. It is a flowchart which shows the process and sewing operation | movement of an embroidery sewing machine.

Explanation of symbols

10 embroidery sewing machine 50 operation panel (size data input means, pitch setting input means)
80 Operation control means 81 CPU
82 ROM (storage means)
84a ROM card (storage means)

Claims (4)

An embroidery sewing machine for performing pattern formation by causing a sewing needle to repeatedly swing in a sawtooth shape relative to a workpiece and proceed in a direction crossing the swing,
Sewing means for performing embroidery sewing while sequentially positioning the sewing needle and the workpiece to be sewn;
Storage means for storing embroidery pattern data for specifying the embroidery pattern;
Size data input means for receiving input of size data for enlargement or reduction for performing sewing of the embroidery pattern;
An embroidery sewing machine comprising: operation control means for controlling the sewing means so that the pitch of the repeated shake becomes smaller as the inputted magnitude data becomes larger. The operation control means includes pitch specifying means for specifying the pitch so as to decrease as the size of the embroidery pattern in the input size data increases, the specified pitch, the input size data, and the 2. The embroidery sewing machine according to claim 1, further comprising data generation means for generating positioning data between the sewing needle and the sewing product based on embroidery pattern data. For the same embroidery pattern, the storage means stores a plurality of embroidery pattern data corresponding to a plurality of values of size data in which the deflection pitch is set smaller as the size of the embroidery pattern increases.
2. The embroidery sewing machine according to claim 1, wherein the operation control means controls the sewing means based on embroidery pattern data corresponding to the inputted size data. 4. The embroidery sewing machine according to claim 1, further comprising pitch setting input means for receiving a setting input of the pitch value.

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