JP3100709B2 - Setting method of repeat sewing in embroidery sewing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a setting method for sewing the same pattern as many times as possible within the embroidery range of an embroidery frame.

[0002]

2. Description of the Related Art The use of a repetitive sewing function allows a required number of patterns to be automatically embroidered after data has been input once for a predetermined pattern, thereby improving work efficiency.

Referring to FIG. 4, a description will be given of a setting procedure at the time of conventional repetitive sewing. First, the maximum dimension Xmax in the horizontal direction X within the embroidery range indicated by the imaginary line in this drawing,
The maximum dimension xmax in the horizontal direction X of one pattern to be sewn and the margin x1 for avoiding the patterns overlapping each other in the horizontal direction X are actually determined by the sample of the pattern (original drawing or existing embroidery pattern). Measure.

[0004] Based on these measured dimensions, the crossover amount x between the patterns adjacent in the horizontal direction X is calculated by x = xmax + x1, and the number Nx of patterns that can be repeatedly sewn in the horizontal direction X is given by Nx = It is calculated by Xmax / x.

In the vertical direction Y within the embroidery range, the maximum dimension Ymax and the maximum dimension y of one pattern to be sewn are set.
max and a margin dimension y1 for preventing the patterns from overlapping each other in the vertical direction Y are measured. Based on this, the crossover amount y (ymax + y1) in the vertical direction Y and the number Ny (Ymax / y) of patterns that can be repeatedly sewn in that direction are calculated.

The numbers Nx and Ny of the patterns that can be repeatedly sewn in the horizontal direction X and the vertical direction Y and the crossover amounts x and y are numerically input by operating the ten keys on the sewing machine operation panel.

[0007]

In the conventional setting method,
It is troublesome to calculate the number of patterns Nx and Ny that can be repeatedly sewn, and if the calculation is wrong or the input using the numeric keypad is wrong, the sewing machine stops by detecting the limit of the embroidery frame, or the number of embroidered patterns is It's less than you can. If the sewing machine stops in the middle of operation, not only the pattern in the middle of the sewing is wasted but also the setting of the repeated sewing must be performed again.

A technical object of the present invention is to simply and accurately set the number of patterns that can be repeatedly sewn within a predetermined embroidery range only by moving the embroidery frame by a manual operation.

[0009]

A method of setting repetitive sewing in an embroidery sewing machine according to the present invention is to set a sewing start point of a pattern to be sewn first in the X or Y direction within an embroidery range in an embroidery frame by a needle drop position of the sewing machine. And the embroidery controller stores the position of the embroidery frame at that time as the first position. Next, the embroidery frame is moved in one of the X and Y directions so that the sewing start point of the second sewn pattern corresponds to the needle drop position of the sewing machine, and the position of the embroidery frame at that time is set as the second position. It is stored in the embroidery control unit. Further, the embroidery frame is moved in the same direction, and the sewing start point of the pattern at the embroidery limit point within the embroidery range in this direction is made to correspond to the needle drop position of the sewing machine, and the embroidery frame position at that time is set as the third position. Store in the department. The number of patterns that can be repeatedly sewn within the embroidery range in the moving direction of the embroidery frame at this time based on the size between the first position and the second position and the size between the first position and the third position. Is obtained by the processing of the embroidery control unit and stored. The number of patterns that can be repeatedly sewn in the embroidery range in that direction in the other direction of the X or Y direction is determined by the processing of the embroidery control unit by the same procedure and stored.

[0010]

According to this setting method, the number of patterns that can be repeatedly sewn in the embroidery range is set only by moving the embroidery frame in the X and Y directions within the embroidery range.
Therefore, the setting operation is easy, and embroidery is not wasted due to the wrong number of patterns, and the setting operation is not repeated.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. First, FIG. 2 is a block diagram showing the overall configuration of a control device in an embroidery sewing machine. In this drawing, the CPU 10 which is the center of the embroidery control unit 1
Through the program ROM 14, working RAM 16
And the data RAM 18.

A data signal from a paper tape reader 22 for reading the embroidery pattern data written on the paper tape 20 and an encoder 26 for detecting the rotation angle of the main shaft 24 of the sewing machine.
An interface 50 that converts an output signal of the CPU 10 and an on / off signal based on the operation of the start switch 30 into an input enable signal of the CPU 10 is connected to the CPU 10 through the bus line 12.
It is connected to the.

An interface 52 for outputting a control signal to a spindle motor 28 for rotatingly driving the sewing machine spindle 24, an interface 54 for outputting a control signal to a pulse motor driver 32, and a color changing motor 38 for a sewing head. The interface 56 that outputs a control signal is also connected to the CPU 10 through the bus line 12. The pulse motor driver 32 supplies a drive current to each of the pulse motors 34 and 35 for moving the embroidery frame 36 in the X and Y directions based on the input of the control signal.

The operation panel 40 of the embroidery sewing machine is provided with various operation keys and indicators as described below. The interface 58 of the operation panel 40
Are connected to the CPU 10 through the bus line 12.

FIG. 3 shows the operation panel 40 in a plan view. As is apparent from FIG.
Is provided with a menu key 42 for setting various operating conditions of the sewing machine, selecting embroidery data, or setting data for repeatedly sewing the same embroidery pattern, and a numeric keypad 44 for setting numerical values. Moreover, the operation panel 40 has an indicator 48 on which setting items or setting values are displayed.

The operation panel 40 has a set of four frame moving keys 46. By individually operating the left and right keys 46a and 46b of the frame moving keys 46, one of the pulse motors 34 in FIG. 2 is driven to rotate forward and reverse to move the embroidery frame 36 manually in the X direction. be able to. Similarly, by operating the upper and lower keys 46c and 46d individually, the other pulse motor 35 can be driven to rotate in the normal and reverse directions, and the embroidery frame 36 can be moved in the Y direction.

Next, the procedure for setting when the same embroidery pattern is to be sewn as much as possible within a predetermined embroidery range will be described. FIG. 1A is an explanatory diagram for setting the repetitive sewing, and FIG. 1B is a block diagram showing the setting procedure. The automatic repetitive sewing in this embodiment proceeds from the left end of the front row to the right side along the X direction within the embroidery area indicated by the imaginary line in FIG. Move along to the second row. Then, the second row is sewn to the left along the X direction, and when it reaches the left end of the second row, the process moves to the third row along the Y direction. Thereafter, the same embroidery pattern 60 is sewn by repeating the same operation.

Therefore, in setting the repetitive sewing, the embroidery frame 36 is moved as described above by operating the frame moving key 46 of the operation panel 40, and the sewing of the pattern 60a to be sewn first within the embroidery range is started. The point A is matched with the needle drop position of the embroidery sewing machine (the position where the sewing machine needle descends). The position of the embroidery frame 36 is always grasped on the basis of the absolute origin A0. Then, by turning on a set key in the menu key 42 of the operation panel 40, the sewing start point A is stored in the data RAM 18 as the first position in the X direction.

Subsequently, by operating the frame moving key 46, the embroidery frame 36 is moved in the X direction, and the sewing start point B of the second pattern 60b to be sewn is matched with the needle drop position of the embroidery sewing machine. Then, the set key is turned on and the sewing start point B is set as the second position in the X direction and the data RA
It is stored in M18. Thus, the distance between the sewing advance direction of the repetitive sewing and the sewing start points A and B of the patterns 60a and 60b, that is, the crossover amount between the patterns in the X direction (XA-B
) Are stored together.

Further, the embroidery frame 36 is moved in the X direction by operating the frame moving key 46, and the sewing start point C of the pattern 60c to be sewn to the right end of the first row in the embroidery range in the X direction is set to the needle drop of the embroidery sewing machine. Match the position. Here, the set key is turned on and the sewing start point C is
It is stored in the data RAM 18 as the third position in the X direction (or the first position in the Y direction). This makes the pattern 60
The distance (XA-C) between the sewing start points A and C of the a and 60c is stored, and the number Nx of the patterns 60 that can be sewn in the embroidery range in the X direction is calculated by the following equation. To be stored. Nx = (XA-C / XA-B) +1

Next, the embroidery frame 36 is moved in the Y direction by operating the frame moving key 46, and the sewing start point D of the pattern 60d to be sewn on the right end of the second row is matched with the needle drop position of the embroidery sewing machine. . Here, the set key is turned on, and the sewing start point D is stored in the data RAM 18 as the second position in the Y direction. Thereby, the sewing start point C of the patterns 60c and 60d
The distance between D, that is, the crossover amount between patterns in the Y direction (YC-D) is stored.

Subsequently, the embroidery frame 36 is moved in the Y direction, and the sewing start point E of the pattern 60e to be sewn on the upper end of the right row within the embroidery range in the Y direction is matched with the needle drop position of the embroidery sewing machine. Then, the set key is turned on and the sewing start point E is set as the third position in the Y direction and the data RAM 18 is turned on.
, The distance (YC-E) between the sewing start points C and E of the handles 60c and 60e is stored.
The number Ny of the patterns 60 that can be sewn in the embroidery range in the Y direction is calculated by the following formula, and the integer is stored as the number. Ny = (YC-E / YC-D) +1

With the above operation, the setting for repeatedly sewing the embroidery pattern 60 is completed. Thereafter, when the start switch 30 shown in FIG. 2 is turned on, the embroidery frame 36 moves so that the sewing start point A comes to the needle drop position, and repeat sewing of the pattern 60 is started.

[0024]

As described above, according to the present invention, the number of patterns that can be repeatedly sewn within a predetermined embroidery range can be set only by manually moving the embroidery frame, which simplifies the setting work and furthermore, the embroidery range. The number of patterns is set as accurately as possible, thereby achieving repetitive sewing without waste.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram for setting repeated sewing.

FIG. 2 is a block diagram illustrating an overall configuration of a control device in the embroidery sewing machine.

FIG. 3 is a plan view of an operation panel.

FIG. 4 is an explanatory diagram for a conventional repetitive sewing setting.

[Explanation of symbols]

 1 embroidery control unit 36 embroidery frame 60 embroidery pattern

──────────────────────────────────────────────────続 き Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) D05B 19/00-21/00 D05C 5/00-5/06

Claims (1)

(57) [Claims] 1. A sewing start point of a pattern to be sewn first in the X or Y direction within an embroidery range in an embroidery frame is made to correspond to a needle drop position of a sewing machine, and the embroidery frame position at that time is set as a first position. Then, the embroidery frame is moved in one of the X and Y directions so that the sewing start point of the pattern to be sewn secondly corresponds to the needle drop position of the sewing machine. The position is stored in the embroidery control unit as the second position, the embroidery frame is further moved in the same direction, and the sewing start point of the pattern at the embroidery limit point in the embroidery range in this direction is made to correspond to the needle drop position of the sewing machine. The position of the embroidery frame at that time is stored in the embroidery control unit as a third position, and based on the size between the first position and the second position and the size between the first position and the third position, Repeat within the embroidery range for the embroidery frame movement direction. The number of patterns that can be reverse sewn is obtained by the processing of the embroidery control unit and stored. The same procedure is applied to the other direction of the X or Y direction in the same procedure as the pattern that can be repeatedly sewn within the embroidery range in that direction. Determining the number by the processing of the embroidery control unit and storing the number, and setting the repeat sewing in the embroidery sewing machine.