JP2520323Y2 - Embroidery machine - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to an automatic embroidery machine, and more particularly to an automatic embroidery machine capable of easily and accurately embroidering a cloth in a range exceeding a single embroidery range. Regarding embroidery machines.

(Problems to be solved by the conventional techniques and devices) In the embroidery work by the conventional embroidery machine, when the embroidery machine embroiders in a large area beyond the embroiderable range, the middle of the embroidery I had to set the cloth again for the cloth frame.

However, this resetting of the cloth requires manual adjustment of the left and right positions and the reference position of the embroidery by trial and error, which is troublesome and it is difficult to reset the cloth accurately. It was

(Means for Solving Problems and Actions of the Invention) The present invention is to XY control the cloth attached to the cloth frame and the needle drop position of the needle bar of the sewing machine and move the sewing machine needle up and down to stitch the stitches. In an embroidery machine that forms and embroiders, an XY drive mechanism that is driven in XY based on embroidery data, and the XY
A carriage that is driven and controlled in the XY directions by a drive mechanism,
The carriage has an effective range that is detachable from the carriage and that can be embroidered at one time under the control of the carriage in at least one direction longer than the range in the XY direction. A cloth frame capable of selecting a plurality of engagement positional relationships with respect to the carriage in any order by a signal specifying a plurality of engagement positional relationships with respect to
According to the present invention, there is provided an embroidery machine including a conversion means for converting the coordinates of the embroidery data in response to a signal specifying each of the plurality of engagement position relationships. By sequentially selecting the engagement positional relationship and performing embroidery, there is an effect that it is possible to easily and accurately embroider a cloth in a range beyond the range in which the embroidery machine can embroider once.

Further, according to the present invention, with respect to the cloth frame attached to the carriage, a signal for specifying a plurality of engagement positional relationships with respect to the carriage is output to the computer section by a sensor section that operates or operates a corresponding frame set key, and the signal is output to the computer section. Since it is possible to select the engagement position relationship of the cloth frame in any order, this allows embroidery characters that emphasize decorative elements,
There is an effect that the color change of one embroidery range unit can be efficiently performed by resetting the upper thread which is important for the pattern etc. to the thread of another color.

First Embodiment The present invention will be described below with reference to the first embodiment. In FIG. 6, the embroidery machine 10 comprises a control box 11 and an embroidery sewing machine 12.

The control box 11 controls and manages all operations of the embroidery sewing machine 12.A floppy disk drive unit FDD is connected to the computer unit 13 via a floppy disk controller, and embroidery data for embroidery written in the floppy disk FD. Is read into the storage device RAM by operating the key panel unit 14 and a related display is displayed on the display unit 15.

Sewing machine motor 16 and XY drive mechanism of embroidery sewing machine 12
The XY drive motor 17 and the Y drive motor 17 are connected to the computer unit 13 via the drive circuit 18 and the XY motor drive circuit 19, respectively, the sewing machine motor 16 moves the sewing machine main body 20, and the XY drive mechanism unit 17 includes the carriage. A cloth frame 22 that is detachably attached to the carriage is controlled by XY via 21.

Next, the key panel portion 14 will be briefly described with reference to FIG.

The key panel section 14 includes a numeric keypad 23 used for selecting a character number, a registration key 24 for registering embroidery data of a character selected by a character number, a start key 25 for starting and stopping the embroidery sewing machine 12, Stop key 26
Besides, the frame set keys 27, 28, 29 are arranged.

The cloth frame 22 according to the first embodiment of the present invention has a plurality of engaging portions, as will be described later, so that the carriage 21 can be engaged with the carriage 21 in three positional relationships in this embodiment. The frame set key is manually operated according to each engagement positional relationship.

In FIG. 1, a plurality of engaging pieces 30, 31, 32 and 33 are formed on the cloth frame 22, and a pair of engaging pieces adjacent to each other form three sets of engaging portions, that is, the engaging pieces 30. A first engaging portion consisting of 31 and a second engaging portion consisting of engaging pieces 31 and 32, and engaging pieces 32 and 33
And constitutes a third engaging portion.

A pair of receiving portions 34a and 34b are formed on a carriage shaft portion 34 that is integrally fixed to the carriage 21 and forms a part of the carriage 21, and an engagement formed by a pair of engaging pieces of the cloth frame 21 that are adjacent to each other. It is adapted to be engaged with the section in three positional relationships.

Engaging pieces 30, 31, 32 are adapted to be engaged with the receiving portion 34a, and engaging pieces 31, 32, 33 are adapted to be engaged with the receiving portion 34b.

Each of the receiving portions 34a and 34b has a pair of flat portions, and the width between the flat portions is such that the tip of the engaging piece of the cloth frame 22 can pass obliquely from above, as shown in FIG. When the cloth frame 22 becomes horizontal due to its own weight, the engaging piece 31 (the engaging piece 32 on 34b) of the cloth frame 22 is engaged with the receiving portion 34a (and 34b) without backlash. In this engaged state, as shown in FIG. 4, the leaf spring 35 of the cloth frame 22 is inserted below the pin 36 of the carriage shaft 34, whereby the cloth frame 22 rattles when the cloth frame 22 is driven and controlled. Is prevented.

In FIG. 2, the cloth frame 22 is driven and controlled in the X and Y directions by the carriage 21, and the control range is a × b.

Here, when the engagement pitch by changing the fitting of the cloth frame 22 to the carriage shaft portion 34 is c, the embroiderable range is expanded to a × l (l = 2c + b) in this embodiment.

(Operation of the First Embodiment) The embroidery work by the embroidery machine of the first embodiment will be described below with reference to FIG.

In the following description, PSn (n = 1,2,3 ...) Indicates the nth step of the operation in FIG.

In this embodiment, an example of arc sewing with alphabets A to H longer than the dimension a as shown in FIG. 2 will be described. When embroidering, first enter the embroidery data of characters on PS1. To input embroidery data, etc., insert the desired floppy disk FD into the floppy disk drive FDD, and operate the key panel 14 to start alphabet A to
The embroidery data of H is written in the storage device RAM, the character size, the interval, the arrangement, etc. are input, and the XY embroidery data of A to H of the arc arrangement shown in FIG.

Next, in PS2, it is determined whether the embroidery data calculated in PS1 can be embroidered by changing the cloth frame 22.

The criterion is that the embroidery is not possible when the cloth frame 22 must be replaced in the middle of one character embroidery, and in other cases it is embroidery.

That is, in FIG. 2, the cloth frame is attached to the carriage shaft 34.
When 22 is engaged in the first engaging portion, the embroidery possible range is a first embroidery range α, and when the second engaging portion is engaged, the embroidery possible range is a second embroidery range β. When the embroiderable range when engaged by the third engaging portion is the third embroidery range γ, when the embroidery is not possible, the first embroidery range α and the second embroidery range β, and the second embroidery range β
In this case, the character frames or patterns of the characters in the overlapping common range of the embroidery range β and the third embroidery range γ protrude to the left and right of the common range. If it is not possible to embroider, re-enter the character size and other information.

In the case of FIG. 2, it is determined that embroidery is possible. If it is determined that embroidery is possible, PS3 assigns embroidery characters. The allocation is to determine the characters to be embroidered in each embroidery range in each attachment state of the cloth frame 22 based on the XY embroidery data calculated in PS1.

In the example of FIG. 2, the letters ABC are in the range α, the letters DE are in the range β,
The letters FGH are assigned to the range γ.

Next, the cloth frame 22 is mounted on the carriage shaft 34 by PS4, and the frame set key corresponding to the mounting position is pressed by PS5.

In the case of FIG. 2, the order of attaching the cloth frame 22 to each position relative to the carriage shaft 34 can be selected in any order. For example, the cloth frame 22 is attached to the carriage shaft 34 so that the range α is effective. When the corresponding cloth set key 27 is pressed,
Characters ABC that are assigned to range A after moving from PS6 to PS7
The embroidery data of is called, and the conversion is performed by translating + C in the Y-axis direction.

The order in which the cloth frame 22 is attached to the carriage shaft 34 at each position can be selected in any order. For the cloth frames attached in a desired order, the corresponding frame set key operation or the sensor described below is performed. This is because the unit outputs to the computer unit a signal that specifies a plurality of engagement positional relationships with respect to the carriage.

This makes it possible to efficiently change the color (reset the upper thread to a different color) in units of one embroidery range, which is important for embroidery characters, patterns, etc. that emphasizes decorative elements.

That is, in the example of FIG. 2, for example, when creating two pieces of a range and a range that have the same color and a range that is embroidered with another color, if the range embroidery order is specified or decided, first It is necessary to set the upper thread 5 times including the setting of the upper thread. On the other hand, in the case of the character embodiment, after first setting the upper thread, the range and the range are continuously embroidered, the color is changed and the range is embroidered to finish one sheet, and the second sheet is not changed in color. After embroidering the area first, you can change the color and embroider the area and area, so you only need to set the upper thread three times including the first set.

Therefore, in the case of the present embodiment, the number of times of setting the upper thread is less than that in the case where the embroidery order of the range is designated or fixed, and the color change can be efficiently performed in the unit of one embroidery range. I have to.

When the start key 25 is turned ON, PS8 is sewn and PS9 is sewn, and PS10 is sewn when the character ABC is sewn.
And, it shifts to PS12 via PS11, and the sewing machine stops.

Cloth frame 2 against carriage shaft 34 with PS4 while the sewing machine is stopped
Change 2 so that range α to range β are valid, and PS5
Then, when the frame set key 28 corresponding thereto is pressed, the process proceeds to PS14 via PS13, and the embroidery data of the character DE assigned to the range β is called.

When the start key 25 is turned ON, PS9 is sewn via PS8, and when the sewing of the character DE is completed, the sewing machine stops after passing PS10 and PS11 to PS12.

As before, when the sewing machine is stopped, PS4 replaces the cloth frame 22 with respect to the carriage shaft 34 so that range β to range γ is valid, and PS5 presses the corresponding frame set key 29 to change PS15. After that, the flow shifts to PS16, the embroidery data of the character FGH assigned to the range γ is called, and -C in the Y-axis direction.
Only a translation that translates is done.

When the start key 25 is turned on, PS9 is sewn through PS8, and PS10 is sewn when the character FGH is sewn.
After that, the program ends.

As described above, according to the first embodiment of the present invention, by sequentially selecting the engagement position relationship of the cloth frame 22 with respect to the carriage shaft portion 34 of the carriage 21 to perform embroidery, one time operation by the embroidery machine is performed. It is possible to easily and accurately embroider a cloth that exceeds the embroiderable range.

Further, in the case of the present embodiment, the number of times of setting the upper thread is small compared to the case where the embroidery order of the range is specified or fixed, and it is possible to efficiently change the color in units of one embroidery range. ing.

In the above embodiment, it is necessary to press the corresponding one of the frame set keys 27, 28 and 29 each time the cloth frame 22 is changed, but the sensor unit automatically detects the replacement of the cloth frame. You can also do it.

In FIG. 8, reflective photo interrupters 41 and 42 are arranged on the carriage shaft portion 40, and a member which reflects the tip or a member which does not reflect is arranged on the corresponding portion of the cloth frame 43. Fabric frame 43 for part 40
It is possible to automatically detect the positional relationship of No. 2 and omit the frame set key of the previous embodiment.

In addition to the reflection type photo interrupter, a sensor using a micro switch, a resistance detecting device, or the like can be used as the sensor unit.

(Second Embodiment) The present invention will be described below with reference to a second embodiment.

The cloth frame according to the first embodiment has a plurality of engaging portions formed on one side in the longitudinal direction of the frame. If the overlapping parts of the embroidery areas are ignored by changing the cloth frame, the embroidery areas can be embroidered. 1xn in XY direction, with one side of range as unit
(N = 2, 3 ...) In contrast to this, in the case of the present embodiment, the detachable engaging portions of the cloth frame are one or two or more respectively on the two opposite sides in the longitudinal direction of the frame. Has been formed,
In the former case, ignoring the overlapping part of each embroidery range by changing the cloth frame, if the X direction is selected as the longitudinal direction with one side of each embroidery range as the unit, enlarge it to 2x1 in the XY direction. In the latter case, it is similarly expanded to n × 2 (n = 2, 3 ...).

The following description will be made with respect to the former example in which the detachable engagement of the cloth frame is formed on each of two opposing sides in the longitudinal direction of the frame.

The structure of the embroidery machine of this embodiment is the same as the structure of the embroidery machine of the first embodiment shown in FIG. 6, and a description thereof will be omitted. However, since the structure of the key panel portion is slightly different, it will be described below.

In FIG. 13, the key panel section 14 includes a ten-key pad 23 used for selecting a character number, a registration key 24 for registering embroidery data of a character selected by the character number, and a start key for starting and stopping the embroidery sewing machine. A key 25, a stop key 26, a data designating key 45 for designating embroidery data when the embroidery position is set, an inching key 46 for moving the cloth frame in the XY directions, and a frame setting key 47 are provided.

In FIG. 9, engaging portions 49, 50 are formed on the cloth frame 48, and these engaging portions 49, 50 are detachable from the carriage 52 controlled by the XY drive mechanism 51.

These engaging portions 49, 50 are formed on two opposite sides of the cloth frame 48 in the longitudinal direction, and are located in point symmetry with respect to the cloth frame 48. As with the first embodiment, the cloth frame 48 can also be selected in any order with respect to the engagement positional relationship with the carriage 52.

In the figure, the cloth frame 48 is driven and controlled by the carriage 52 in the X and Y directions, and its control range is d × e.

Here, when the engagement pitch by changing the fitting of the cloth frame 48 to the carriage 52 is f, the embroidery range is expanded to l × e (l = f + d) in this embodiment.

Here, for the sake of convenience, the embroidery range after the cloth frame 48 is initially attached is δ, and the embroidery range after changing the fitting is ε.
Call.

If the dimension in the X direction of the common range of the range δ and the range ε is g, then g = df.

(Operation of the Second Embodiment) The embroidery work by the embroidery machine of the second embodiment will be described below with reference to FIG.

In the following description, PSn (n = 21, 22, 23 ...) Indicates the nth step of the operation in FIG.

In this embodiment, an embroidery stitch of linear arrangement of alphabets A to G longer than the d dimension as shown in FIG. 10 will be described.

When embroidering, first attach the cloth frame 48 to the carriage 52 with the PS21.

Next, enter the embroidery data etc. of the character on PS22. FD for floppy disk drive input for embroidery data
A desired floppy disk FD is inserted into D, and the embroidery data of alphabets A to G is written in the storage device RAM by operating the key panel unit 14. The input procedure is alphabet A, B, C, data designating key 45, alphabet D, F, FG in this order, and character spacing, size, layout, etc. are input.

By this input, the data of the designated character spacing, size, and arrangement as shown in FIG. 11 is written in the storage device RAM.

In this case, the point P at the lower left corner of the character frame of the first letter D of the alphabet D, E, F, G to be embroidered in the range δ by the data designating key 45 is made to correspond to the needle drop point.

Move the cloth frame 48 by operating the inching key 46 on the PS23
As shown in Fig. 10, set the reference position of point P in the Y direction.

In this embodiment, the lower side of the character frame is set so as to be from the center line m to h of the cloth frame 48 in the Y direction.

Next, by operating the inching key 46 on the PS 24, the left and right positions of the point P are set.

The dimension j from the left end of the range δ of the point P is set so as not to exceed g + k, where k is the character spacing.

Next, when the start key 25 is turned ON, the process moves to PS26 via PS25, and it is determined whether or not the embroidery data is within the sewing range.

In this determination, it is determined that the data shown in FIG. 11 is within the embroiderable range 1 × e expanded by setting PS23 and PS24 and the dimension j is within g + k.

If the embroidery data is within the sewing range, the process moves to PS27 and the sewing range is confirmed.

This sewing range is confirmed for the letters DEFG to be sewn in the range δ, and the cloth frame 48 moves with the sewing machine stopped,
The needle drop draws a rectangular trajectory connecting the character frames of the character DEFG relative to the cloth.

Next, when the start key 25 is turned on for the second time, it goes through PS28,
Embroidery of the character DEFG is performed.

When the embroidery of characters is completed and there is a pause signal, the PS
After 30 minutes, the machine moves to PS31 and the sewing machine pauses.

When changing the cloth frame 48 on the PS32 and turning on the frame set key 47, the embroidery data on the PS34 is converted.

 Embroidery data is converted on the PS34.

That is, in FIG. 12, the data of the character ABC, which was within the range before changing the cloth frame 48, is point-symmetrical within the range ε ₁ after changing the cloth frame 48 around the point Q which is the symmetry point. Rotated and converted.

Next, when the start key 25 is turned ON, the embroidery of the characters ABC is performed based on the data converted by PS34 via PS35.

When the embroidery of characters is completed and there is an end signal, the sewing machine stops at PS38 via PS37 and the program ends.

As described above, according to the second embodiment of the present invention, by sequentially selecting the engagement position relationship of the cloth frame 48 with respect to the carriage 52 and performing the embroidery, the embroidery machine exceeds the single embroidery range. A range of fabrics can be embroidered easily and accurately.

Also in the case of this embodiment, as in the case of the first embodiment, the number of times of setting the upper thread is smaller than that in the case where the embroidery order of the range is designated or fixed, and the color change is 1
This enables efficient embroidery range units.

In the above description, the engaging portion of the cloth frame is formed by one each of the two sides facing each other in the longitudinal direction of the frame, but the engaging portion of the cloth frame is described as two opposing sides in the longitudinal direction of the frame. FIG. 15 shows an example in which a plurality of them are formed.

In the figure, the cloth frame 53 is provided with a plurality of (two in this example) engaging portions 54, 55 and engaging portions 56, 57 on two opposing sides in the X-direction, which is the longitudinal direction of the frame. The carriage 52 is formed and these engaging portions are controlled in XY by the XY drive mechanism 51.
Each is removable.

The cloth frame 53 is configured in this manner, and a frame set key corresponding to the engagement relationship between the carriage 52 and each engaging portion is provided, and the corresponding frame set key is operated each time the cloth frame 53 is replaced, and the carriage is moved.
By embroidering by converting data according to the engagement position relationship with 52, and ignoring the overlapping portions of each embroidery range, the embroidery range is defined as n = 2 of n × 2 with one side of each embroidery range as a unit. It can be expanded to 2.

In the embodiment of FIG. 2 also, the frame set key 47 is pressed when changing the fit of the cloth frame 48. However, similar to the first embodiment, the change of the fit of the cloth frame is automatically detected by the sensor section.
The frame set key can be omitted.

(Effect) As described above, according to the present invention, the patterns are the first and second patterns.
In the overlapping range between the embroidery ranges, the control means can perform the embroidery sewing of the selected pattern when the embroidery range is projected only in one of the first and second embroidery ranges and is not projected in both the embroidery ranges. Therefore, the selected pattern can be continuously sewn without being continued by changing the mounting of the engaging portion to the carriage without resetting the cloth on the cloth frame. Therefore, by sequentially selecting the engagement position relationship of the cloth frame with respect to the carriage and performing embroidery, it is possible to easily and accurately embroider a cloth that exceeds the range in which the embroidery machine can embroider once. To be

Further, according to the present invention, it is possible to effectively change the color for each embroidery range unit by resetting the upper thread, which is important for embroidery characters and patterns that emphasize decorative elements, to a thread of a different color. To be

[Brief description of drawings]

1 to 8 relate to a first embodiment of the present invention, FIG. 1 is a perspective view of an embroidery machine, FIG. 2 is a view for explaining a mounting position relationship between a cloth frame and a carriage, and FIG. 3 is 2 is a sectional view taken along the line AA, FIG. 4 is a sectional view taken along the line BB of FIG. 2, FIG. 5 is a view showing the key panel portion of the control box, and FIG. 6 is a schematic configuration of the embroidery machine. FIG. 7 is a block diagram, FIG. 7 is a flow chart showing the embroidery work, and FIG. 8 is a perspective view of a carriage shaft and a cloth frame main part of another embodiment different from the carriage shaft and the cloth frame shown in FIGS. 9 to 15 relate to the second embodiment of the present invention, FIG. 9 is a diagram for explaining the mounting position relationship between the cloth frame and the carriage, and FIG. 10 is a diagram showing the embroidery data and the possible embroidery range. Positional diagram, No.
Fig. 11 is a diagram showing the embroidery data as a graphic showing the mutual positional relationship, Fig. 12 is a diagram showing the conversion of the embroidery data as a graphic and the positional relationship with the hoop, and Fig. 13 is a diagram showing the key panel of the control box. FIG. 14 is a flow chart showing the embroidery work, and FIG. 15 is a view showing a cloth frame according to another embodiment different from the cloth frame shown in FIG. 9 and the like. 17,51 is an XY drive mechanism, 21,52 is a carriage, 22,43,48,53
Is a cloth frame, 27, 28, 29, 47 are operation set keys, 30 and 31 pairs, 3
A pair of 1,32, a pair of 32,33 and 49,50 and 54,55,56,57 are engaging parts, a set of 41,42,44 is a sensor part, and PS7, PS16, PS34 are converting means.

Claims (1)

(57) [Scope of utility model registration request] 1. A stitch is formed on the cloth by relative XY control of the needle drop position of a sewing machine needle that reciprocates vertically with a cloth frame to which the cloth is attached by using embroidery data of various patterns including characters. In an embroidery machine that performs embroidery, a drive mechanism that is driven in XY based on the embroidery data, a carriage that is driven and controlled in the XY direction by the drive mechanism, and an arbitrary series of a plurality of patterns are selected from the patterns. A means for inputting and a cloth frame detachably attached to the carriage, and when attached to the carriage, the XY of the carriage is attached.
Direction and a cloth frame having an embroidery range that exceeds one drive control range in at least one direction, and the cloth frame is fixedly arranged on the cloth frame and detachably engaged with the carriage so that the cloth frame can be detachably attached to the carriage. Engaging means to be mounted, including at least first and second sets of engaging parts, wherein the first and second engaging parts are sequentially engaged with the carriage.
Predetermined first and second continuous embroidery ranges are set on the cloth frame in the XY directions, and the first and second embroidery ranges are set as common embroidery ranges that overlap each other in the XY directions. It comprises an engaging means and a control means for reading out embroidery data of a pattern to be sewn within the first and second embroidery ranges, wherein the control means has the selected pattern for the first and second embroidery patterns of the cloth frame. It is determined whether or not embroidery is possible in the second embroidery range, and one of the selected patterns is selected.
In the common embroidery range, it is determined that it is possible to sew a plurality of selected patterns, except when it is determined that the size exceeds the range at least on both sides of this range in the pattern arrangement direction. Embroidery machine.