CN1611652B - Automatic sewing machine - Google Patents

Abstract

An automatic sewing machine comprising: a sewing mechanism for forming stitches on a cloth placed on a cloth holding plate; a cloth transfer mechanism for transferring the cloth placed on a cloth holding plate in a predetermined direction; The stitch data storage means for forming a plurality of stitch data of stitches, and the sewing pattern storage means, according to the sewing pattern that will be stored in the stitch data of the sewing pattern storage means, at predetermined intervals Continuously form a plurality of stitches on the cloth; and also have: among the stitch data combined in the sewing pattern, a selection mechanism for selecting desired stitch data, and can control the sewing mechanism to form only according to the selected mechanism Sewing control mechanism for the stitches of the selected stitch data. This automatic sewing sewing machine can continuously form a plurality of stitches, and perform trial sewing on each of the stitches.

Description

automatic sewing machine

technical field

The invention relates to an automatic sewing machine which continuously forms a plurality of predetermined stitches on a sewn object.

Background technique

As is well known, conventionally, there is an automatic sewing sewing machine that has a pre-setting device that continuously or intermittently feeds a feeding mechanism in one direction, and continuously sews a plurality of buttonholes on a large front part of the front body. In this automatic sewing machine, when buttonhole sewing is performed at a specified position, the pre-set device will move the cloth by a predetermined amount so that buttonhole sewing can be performed at the next position, and multiple buttonhole sewing can be automatically performed (such as , refer to Patent Document 1).

On such an automatic sewing sewing machine, stitch data on stitch shapes for sewing a plurality of buttonholes is stored, and a pattern (sewing pattern) combining a plurality of desired stitch shapes among its plurality of stitch shapes is registered. pattern). And, the automatic sewing sewing machine can continuously form a plurality of stitches on the sewing object according to the selected pattern.

[Patent Document 1] Japanese Unexamined Patent Publication No. 7-100279

However, in the case of the above-mentioned Patent Document 1, when trial sewing is performed on the object to be sewn in order to confirm the shape of the stitches stored in the automatic sewing machine, all of the plurality of stitches according to the registered pattern are formed. . Therefore, even if the stitch you want to confirm is one stitch in the pattern, you have to form stitches other than this stitch, because it takes time and you have to use the cloth for pattern sewing (shirt front piece, etc.) , so there is a problem that the efficiency is reduced and the cloth is wasted.

Contents of the invention

The object of the present invention is to provide an automatic sewing machine which can sew only selected stitches on a test basis and can improve work efficiency without wasting material and can reduce costs.

In order to solve the above problems, the automatic sewing sewing machine (for example, buttonhole sewing machine M) according to the first aspect of the present invention has: a cloth holding plate (10) on which cloth is placed; The sewing mechanism (for example, sewing machine motor 5, machine needle 8, etc.), the cloth transfer mechanism (for example, cloth transfer device 20) for transferring the cloth placed on the cloth holding plate in a predetermined direction, and the storage for multiple In the stitch data storage mechanism (for example, EEOROM 104) of the stitch data that forms the stitch, store the prescribed stitch data among the plurality of stitch data that will be stored in the stitch data storage mechanism, according to the stitch data that forms the stitch The sewing pattern storage mechanism (for example, EEOROM104) of the sewing pattern combined sequentially, and the sewing mechanism is activated according to the signal and the cloth is transferred by the cloth transfer mechanism to form a stitch according to the prescribed stitch data after the cloth is transferred for a predetermined distance, so that This control mechanism (100) for continuously forming a plurality of stitches corresponding to the above-mentioned sewing pattern on cloth is characterized in that it further includes: selecting stitches to be combined in the sewing patterns stored in the sewing pattern storage means The selection mechanism (for example, operation panel 40, separate sewing mode switching key 70) of the desired stitch data among the data, and the control sewing mechanism, to start according to the signal and according to the stitch data selected by the selection mechanism on the cloth Sewing control mechanism for forming stitches (for example, the control part 100.)

According to the first aspect of the present invention, the automatic sewing machine is a sewing machine whose sewing mechanism forms stitches on a cloth placed on a cloth holding plate. Then, after the cloth feeding mechanism moves the cloth in a predetermined direction, the sewing mechanism forms the next stitch.

In addition, the automatic sewing sewing machine stores in the sewing pattern storage means a sewing pattern specified among a plurality of stitch data for forming stitches stored in the stitch data storage means. Stitch data, sewing patterns combined in the order in which the stitches are formed, and the automatic sewing sewing machine also continuously forms a plurality of stitches corresponding to the sewing patterns on the cloth at predetermined intervals.

In particular, this automatic sewing sewing machine can use the selection mechanism to select the desired stitch data among the stitch data combined in the sewing pattern stored in the sewing pattern storage mechanism, and the sewing control mechanism can control the sewing pattern. control mechanism to form stitches according to the stitch data selected by the selected mechanism.

That is, the automatic sewing sewing machine can not only form a plurality of stitches corresponding to the sewing pattern on the cloth, but also can only form the stitch data selected by the selection mechanism according to the stitch data combined on the sewing pattern. of the stitches.

Therefore, in the automatic sewing machine, desired stitch data can be selected by the selection means, and trial sewing can be performed for each stitch data. Therefore, compared with the conventional automatic sewing sewing machine, it is not necessary to form a plurality of stitches (all stitches) according to the sewing pattern as trial sewing, and it is possible to save sewing operation time and waste of sewing threads used for sewing. .

The second aspect of the present invention is the automatic sewing sewing machine according to the first aspect of the present invention, further comprising: a display unit (for example, an operation panel 40) for displaying stitch data selected by the selection mechanism, and a sewing machine according to the formation. The sequence of stitches of the pattern is switched by a mechanism for switching stitch data displayed on the display unit (for example, the operation panel 40, the individual sewing mode switching key 70, and the switching key 73).

According to the second aspect of the present invention, in addition to playing the same role as that described in the first aspect of the present invention, the automatic sewing sewing machine also has a display portion for displaying the stitch data selected by the selection mechanism, and can utilize the switching mechanism to press the seam formation. The order of the stitches in the pattern is switched to the stitch data displayed on the display.

Therefore, since the automatic sewing sewing machine can switch the stitch data combined as a sewing pattern in the order of forming its stitches, it is easy to select a desired line from a plurality of stitch data combined as a sewing pattern. stitch data, and it is easy to carry out trial sewing for each stitch data.

The third aspect of the present invention is the automatic sewing sewing machine according to the second aspect of the present invention, further comprising a display switching control mechanism (for example, the control unit 100). When the display switching control mechanism is stored in the sewing In the sewing pattern in the pattern storage mechanism, when the same stitch data is repeatedly included, when the stitch data display of the display part is switched by the switching mechanism, the switching of the repeated stitch data in the sewing pattern is only performed once. .

According to the third aspect of the present invention, in addition to being able to play the same role as that described in the second aspect of the present invention, the automatic sewing sewing machine, when being stored in the sewing pattern storage mechanism in the sewing pattern, for example repeatedly includes the formation When the same stitch data with different stitch sequences is used, the display switching mechanism can be used to switch to only display the stitch data repeated once in the sewing pattern, for example, only display the stitch data whose stitch sequence is formed earlier.

Therefore, when the automatic sewing machine switches the stitch data combined as the sewing pattern in the order in which the stitches are formed, the stitch data can be quickly selected without wasteful display of all the stitch data being repeated.

A fourth aspect of the present invention is the automatic sewing machine according to any one of the first to third aspects of the present invention, further comprising a judging mechanism (for example, the control unit 100) that judges whether the thread stored in the thread Whether the plurality of stitch data in the stitch data storage mechanism is included in the sewing pattern stored in the sewing pattern storage mechanism, the plurality of stitch data to be stored in the stitch data storage mechanism are displayed on the display When it is part, it can visually display the result judged by the judging mechanism.

According to the fourth aspect of the present invention, in addition to having the same effect as that described in any one of the first to third aspects of the present invention, the judging mechanism of the automatic sewing machine can judge a plurality of stitches stored in the stitch data storage mechanism. Whether stitch data is included in the sewing pattern stored in the sewing pattern storage means. In addition, the automatic sewing machine can visually display the result of judgment by the judging means when displaying the stitch data on the display unit.

Therefore, on the automatic sewing machine, it can be easily confirmed whether or not a plurality of stitch data stored in the stitch data storage means are to be combined as a sewing pattern. That is, it is easy to confirm whether the stitch data is the stitch data used for the sewing pattern when automatic sewing is performed.

(invention effect)

According to 1 of the present invention, the automatic sewing sewing machine can utilize the selection mechanism to select the desired stitch data among the stitch data combined in the sewing pattern stored in the sewing pattern storage mechanism, and the sewing control mechanism can control The sewing mechanism is used to form stitches according to the stitch data selected by the selected mechanism.

Therefore, the automatic sewing sewing machine can not only continuously form a plurality of stitches corresponding to the sewing pattern on the cloth, but also can only form stitches selected by the selection mechanism according to the stitch data combined on the sewing pattern. data traces.

Therefore, the automatic sewing sewing machine can use the selection mechanism to select the desired stitch data, and can perform trial sewing for each stitch data. Multiple stitches (all stitches) can save sewing work time or waste of sewing threads used for sewing.

According to the second aspect of the present invention, the automatic sewing machine can switch the stitch data combined as a sewing pattern in the order in which the stitches are formed, so that it can be easily selected from a plurality of stitch data combined as a sewing pattern. desired stitch data, and can easily perform trial sewing for each stitch data.

According to the third aspect of the present invention, when the sewing pattern stored in the sewing pattern storage mechanism repeatedly includes the same stitch data in which the order of stitches is different, the automatic sewing machine can be used as a sewing machine. When the stitch data combined for drawing a pattern is switched according to the order of forming the stitches, the repeated stitch data can be skipped, and the display can be switched according to the next stitch data of the currently displayed stitch data, so there is no Displays the waste of repeated stitch data, and can quickly select stitch data.

According to the fourth aspect of the present invention, on an automatic sewing machine, it can be easily confirmed whether or not a plurality of stitch data stored in the stitch data storage means are to be combined as a sewing pattern. In addition, it is easy to confirm whether or not the stitch data is stitch data used for a sewing pattern when automatic sewing is performed.

Description of drawings

Fig. 1 is a perspective view showing a buttonhole sewing machine according to the present invention.

Fig. 2 is a perspective view showing a sewing machine body of the buttonhole sewing machine of the present invention.

Fig. 3 is a perspective view showing a cloth feeding device on the buttonhole sewing machine.

Fig. 4 is a block diagram showing the configuration of main parts of the buttonhole sewing machine of the present invention.

Fig. 5 is a flow chart showing the trial sewing operation of the buttonhole sewing machine of the present invention.

FIG. 6 is a diagram showing an example of a screen displayed on the operation panel.

Fig. 7 is a diagram showing an example of a screen displayed on the operation panel.

Fig. 8 is a diagram showing an example of a screen displayed on the operation panel.

Fig. 9 is a diagram showing an example of a screen displayed on the operation panel.

Fig. 10 is a diagram showing an example of a screen displayed on the operation panel.

Fig. 11 is a flowchart showing the operation of the buttonhole sewing machine of the present invention.

Fig. 12 is a diagram showing an example of a screen displayed on the operation panel.

Fig. 13 is a diagram showing an example of a screen displayed on the operation panel.

Fig. 14 is a diagram showing an example of a screen displayed on the operation panel.

Fig. 15 is a flowchart showing operations related to the display of the buttonhole sewing machine of the present invention.

Fig. 16 is a diagram showing an example of a screen displayed on the operation panel.

Fig. 17 is a diagram showing an example of a screen displayed on the operation panel.

In the figure: 1-sewing machine body, 2-sewing machine frame, 5-sewing machine motor (sewing mechanism), 8-needle (sewing mechanism), 10-cloth holding plate, 20-cloth transfer device (cloth transfer mechanism) , 30-cloth guiding device, 40-operation panel (display unit, selection mechanism, switching mechanism), 70-individual sewing mode switching key (selection mechanism, switching mechanism), 73-switching key (switching mechanism), 100-control Department (sewing control mechanism, display control mechanism, judgment mechanism), 104-EEPROM (stitch data storage mechanism, sewing pattern storage mechanism), M-buttonhole sewing machine (automatic sewing sewing machine), T-sewing machine table.

Detailed ways

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 17 .

In this embodiment, a buttonhole sewing machine called INDEXER will be described as an example of an automatic sewing sewing machine. This buttonhole sewing machine is a sewing machine that cuts a hole in a cloth to be sewn with a cutter and applies keyhole stitching around the cut hole to form a buttonhole for a shirt or the like on the cloth. In addition, it is a sewing machine that can transfer the cloth by a predetermined amount by a cloth feeding device and perform repeated sewing to form a plurality of buttonholes at predetermined intervals.

At this time, the direction in which the needle 8 described later moves up and down is defined as the Y-axis direction (up-and-down direction), and the direction in which the cloth transfer device 2 described below transfers the cloth perpendicularly thereto is defined as the X-axis direction (left-right direction). The direction perpendicular to both the Y-axis direction and the Y-axis direction is defined as the Z-axis direction (front-rear direction).

As shown in FIG. 1 , the buttonhole sewing machine M has: a sewing machine body 1 provided on the upper surface of the sewing machine table T; The transfer device 20, the cloth guide device 30 for guiding the cloth transferred by the cloth transfer device 20 in the X-axis direction, and the operation panel as a setting mechanism for the operator to input and operate various setting data necessary for sewing 40, and the control part 100 etc. which carry out the operation control of the above-mentioned mechanisms.

In addition, the direction in which the sewing machine main body 1 is installed is not limited to the direction shown in FIG. 1 .

字形的缝纫机机架2。该缝纫机机架2，具有成为缝纫机本体1上部且向前后方向延伸的缝纫机机头部2a、成为缝纫机本体1下部且向前后方向延伸的缝纫机底板部2b、连结缝纫机机头部2a及缝纫机底板部2b的纵机身部2c。Sewing machine body 1, as shown in Fig. 1, Fig. 2, its profile has slightly be seen from the side

Zigzag sewing machine frame2. The sewing machine frame 2 has a sewing machine head portion 2a extending in the front-rear direction as the upper portion of the sewing machine body 1, a sewing machine floor portion 2b extending in the front-rear direction as the lower portion of the sewing machine body 1, and a connecting sewing machine head portion 2a and the sewing machine floor portion. 2b of the vertical fuselage part 2c.

The sewing machine main body 1 has a power transmission mechanism arranged in a sewing machine frame 2, and has an unshown upper shaft and an unshown lower shaft extending rotatably forward and backward. An upper shaft (not shown) is arranged inside the sewing machine head 2a, and a lower shaft (not shown) is arranged inside the sewing machine bottom plate portion 2b.

The upper shaft (not shown) is connected to a sewing machine motor 5 (see FIG. 4 ), and is given rotational force by the sewing machine motor 5 . In addition, the lower shaft (not shown) is connected to the upper shaft through a vertical shaft not shown, and when the upper shaft rotates, the power of the upper shaft is transmitted to the lower shaft through the vertical shaft (not shown), and the lower shaft rotates.

A needle bar (not shown) that moves up and down by the rotation of the upper shaft is connected to the front end of the upper shaft (not shown), and a machine needle 8 is provided at the lower end of the needle bar as shown in FIG. 2 . In addition, a rotary hook (not shown) is provided at the tip of the lower shaft (not shown). When the upper shaft and the lower shaft rotate simultaneously, the machine needle 8 and the hook (not shown) cooperate to form stitches.

In addition, due to the connection of the upper shaft (not shown), the sewing machine motor 5, the needle bar (not shown), the needle 8, the lower shaft (not shown), the hook (not shown), etc. Construction and sewing action thereof are the same as well known, so no more details here.

In addition, as shown in FIG. 2 , a cloth holding plate 10 is provided on the sewing machine bottom plate portion 2 b, and a presser foot portion 11 and a cutter 12 are disposed above the cloth holding plate 10 .

The presser foot portion 11 is mounted on a mounting plate 13 disposed at the front end of the sewing machine head 2a, and a presser foot actuator 14 (see FIG. 4 ) as a presser foot moving mechanism is provided on the mounting plate 13. . Also, for example, when the presser foot actuator 14 is on, the presser foot 11 moves to the cloth pressing position, and when the presser foot actuator 14 is off, the presser foot 11 moves to the retracted position.

The presser position of the presser foot part 11 means that the presser foot part 11 presses the cloth so that the cloth is supported on the cloth holding plate 10 so that the cloth cannot be shifted, and is an arrangement for sewing.

The retracted position of the presser foot part 11 is an arrangement for releasing the presser foot part 11 to raise the cloth on the supporting cloth holding plate 10 . With this arrangement, the cloth can be placed or taken out between the cloth holding plate 10 and the presser foot portion 11 . In addition, while the presser foot portion 11 is moving to the retracted position, the cloth feeding device 20 described later performs the feeding of the cloth.

In addition, the presser part actuator 14 is an actuator capable of controlling the position of the presser part 11, and for example, a pulse motor, a servo motor, or the like can be used.

The cutter 12 is mounted on a mounting plate (not shown) disposed at the front end portion of the sewing machine head 2a, and a cutter actuator 15 (see FIG. 4 ) is provided on the mounting plate. In addition, the cutter 12 descends when the cutter actuator 15 is in the on state, and rises when the cutter actuator 15 is in the off state. In addition, the ON state and OFF state of the cutter actuator 15 are switched according to a predetermined program for operating the buttonhole sewing machine M (sewing machine main body 1).

The cloth transfer device 20, as shown in FIGS. 1 and 3 , has: a first cloth transfer unit 20a and a second cloth transfer unit 20b disposed on the sewing machine table T with the sewing machine main body 1 sandwiched between them; The support part 21 of the conveyance part 20a, 20b, the pulse motor 26 for cloth feeding which is arrange|positioned in the sewing machine table T and moves the support part 21 to the left-right direction, etc. are provided.

As shown in FIG. 3, the cloth conveying part 20a has the pressing member 25 which presses a cloth to the upper surface of the sewing machine table T, and the air cylinder not shown which moves the pressing member 25 up and down.

In addition, the support portion 21 supporting the cloth conveying portion 20a includes a horizontal support member 22 parallel to the sewing machine table T, and a vertical support member 23 extending downward from both ends of the horizontal support member 22 (inside the sewing machine table T). , 23, and a rack member 24 straddling the lower ends of the vertical support members 23, 23.

In addition, the pulse motor 26 for cloth feed has a pinion member 27 engaged with the rack member 24 of the support portion 21 on its motor shaft.

In such a cloth feeding device 20, since the rack member 24 of the support portion 21 is arranged to be able to engage with the pinion member 27 rotationally driven by the pulse motor 26 for cloth feeding, when the pinion member 27 follows the cloth feeding When the pulse motor 26 operates and rotates, the cloth conveying part 20a moves in the cloth feeding direction (X-axis direction) together with the rack member 24 . Furthermore, the pressing member 25 of the cloth conveying part 20a can transfer the cloth pressed against the upper surface of the sewing machine table T in the cloth feeding direction. Then, the cloth placed on the upper surface of the sewing machine table T is transferred to the cloth feeding direction by a predetermined amount (prescribed distance).

In addition, the structure of the 2nd cloth conveying part 20b is the same as that of the 1st cloth conveying part 20a. In addition, the first and second cloth conveying parts 20a and 20b are driven by the respective pulse motors 26 to operate synchronously.

Cloth guide device 30, as shown in Figure 1, has: the first guide plate part 30a and the second guide plate part 30b that are arranged on the sewing machine table T top with sewing machine main body 1 sandwiched in between, and each guide plate part 30a, 30b The moving guide plate moving parts 31a, 31b and the like.

Each guide plate portion 30a, 30b is arranged on the upper surface of the sewing machine table T along its longitudinal direction along the cloth feeding direction (X-axis direction), and can be moved in a direction perpendicular to the cloth feeding direction (front-rear direction) by each guide plate moving portion 31a, 31b. , Z-axis direction) to move.

The first guide plate part 30a is fixed to the rack member 32a of the guide plate moving part 31a, and the rack member 32a is arranged so as to be rotatably driven by a pulse motor 33 (see FIG. 4 ) arranged in the guide plate moving part 31a. The illustrated pinion assembly fits together. When the pinion member rotates in accordance with the operation of the pulse motor 33, the rack member 32a moves forward and backward (Z-axis direction), and the guide plate portion 30a moves forward and backward and in the Z-axis direction. Furthermore, the position where each guide plate part 30a, 30b is arrange|positioned can be changed according to the cloth which the cloth transfer apparatus 20 transfers and conveys on the sewing machine table T. As shown in FIG.

In addition, the second guide plate portion 30b has the same structure as that of the first guide plate portion 30a. And the 1st and 2nd guide plate part 30a, 30b moves synchronously by the drive of the pulse motor 33 thereof.

The operation panel 40 is, for example, a touch-panel type operation portion having a plurality of operation keys or a display portion displaying various setting data (for example, stitch data), and has a function for the operator to perform operations such as starting and stopping of the sewing machine. , and the functions of an input mechanism, a setting mechanism, a selection mechanism, and a switching mechanism for the operator to input various setting data of the sewing machine necessary for sewing.

For example, when a sewing machine start switch is pressed on the operation panel 40, a drive signal for operating the sewing machine input by the operation is output to the control unit 100 (CPU 101) described later.

In addition, various data set and input on the operation panel 40 are output to the control unit 100 described later and stored in the EEPROM 104 described later.

As the main parameters and data set and input by the operation panel 40, there are, for example, the interval for forming buttonhole sewing or the distance (feeding amount) of cloth fed by the cloth feeding device 20 according to the interval, and the interval for forming buttonhole sewing. Quantity, position of each guide plate part 30a, 30b of the material guide device 30 according to material or buttonhole sewing, cloth cutting length, knife width, left and right slit width, lock seam width, backtack length, backtack width, Sewing pitch, backtack pitch, gap length between fabric incision and backtack, cutter drop left and right position, number of stitches, thread tension, sewing machine speed, etc. can be input and set using the operation panel 40 .

In addition, the buttonhole sewing machine M (sewing machine body 1), as shown in FIG. The control unit 100 to which the pulse motor 33 and the operation panel 40 of the device 30 are connected.

The control unit 100 has a CPU 101 , a ROM 102 , a RAM 103 , an EEPROM 104 , and an I/O interface 105 . ROM102, RAM103, EEPROM104, and I/O interface 105 are connected to CPU101 through a bus line.

The CPU 101 centrally controls the operations of each part according to the drive signals input from the operation panel 40, or various settings, data, etc., according to various control programs for the buttonhole sewing machine stored in the ROM 102, and stores the processing results. The processing result stored in RAM 103 is stored in EEPROM 104 in the work area in RAM 103 . Then, the CPU 101 controls the driving of each part constituting the buttonhole sewing machine M (the sewing machine main body 1).

In the ROM 102, a control program, control data, and various stitch data of the buttonhole sewing machine M (the sewing machine body 1) are written.

In RAM 103, various work memories, counters, and the like are provided, and are used as a work area during sewing operations.

EEPROM 104, as a storage mechanism, stores various parameters as input setting values, for example, the interval for sewing buttonholes or the distance (amount of cloth feeding) fed by the cloth feeding device 20 according to the intervals, and the sewing interval for forming buttonholes. Quantity of sewing, position of each guide plate part 30a, 30b of the material guide device 30 according to material or buttonhole sewing, cloth cutting length, knife width, left and right slit width, lock seam width, backtack length, reinforcement Seam width, sewing spacing, reinforcement seam spacing, gap length between incision and reinforcement seam, cutting knife drop left and right position, number of stitches, thread tension and sewing machine speed, etc.

In particular, the EEPROM 104, as a stitch data storage mechanism, has stored necessary parameter data for forming a prescribed buttonhole sewing, for example, a summary of the length of the cloth cut, the width of the knife, the width of the left and right grooves, the width of the lock seam, the seam Stitch data such as thread tension. This stitch data is data for forming buttonholes of various stitch shapes by combining various parameters. EEPROM 104, for example, can store 99 kinds of stitch data from No.1 to No.99. In addition, the buttonhole sewing machine M can form buttonhole stitches of 99 shapes according to each stitch data.

In addition, EEPROM 104 stores, as sewing pattern storage means, a sewing pattern obtained by combining predetermined stitch data among a plurality of 99 kinds of stitch data, for example. This sewing pattern is combined according to the stitch data in the order of stitch formation, and is used to continuously form buttonhole seams of various stitch shapes at predetermined intervals by combining the stitch data. created pattern data. EEPROM 104 can store, for example, 99 sewing patterns of No. 1 to No. 99. In addition, the buttonhole sewing machine M can form multiple buttonhole sewing in 99 patterns according to each sewing pattern.

The sewing machine motor 5 is connected to the I/O interface 105 via the sewing machine motor driver 5a. An encoder 5b for detecting the number of revolutions of the sewing machine motor 5 is connected to the sewing machine motor driver 5a, so that feedback control can be performed.

In addition, a needle upper position sensor 5c for detecting the rise of the needle 8 is connected to the sewing machine motor driver 5a. Thus, the number of stitches when stitches are formed by the machine needles 8 can be counted by the control unit 100 .

Moreover, the presser part actuator 14 is connected to the I/O interface 105 via the presser part drive circuit 14a, and the knife actuator 15 is connected via the knife drive circuit 15a. In addition, to the I/O interface 105 , the pulse motor 26 for cloth feeding is connected via the cloth feeding device driving circuit 16 , and the pulse motor 33 is connected via the cloth guiding device driving circuit 17 .

In addition, the control unit 100 controls the rotation of the sewing machine motor 5 according to a predetermined program, and controls the needle bar and the needle 8 that move up and down by the rotation of the upper shaft (not shown) and the lower shaft (not shown). The operation of the rotary hook (not shown) that rotates together (ie, the operation of the sewing mechanism) controls the sewing operation (buttonhole sewing) on the sewing machine quilt 1 . In addition, the control unit 100 controls the cutter actuator 15, and controls the cutter 12 to form holes according to predetermined buttonholes on the cloth.

In addition, the control section 100 performs control to display on the operation panel 40 the stitch data selected by the individual sewing mode switching key 70 or the switching key 73 as selection means and switching means which will be described later.

In particular, the control unit 100, as a sewing control mechanism, controls the sewing mechanism, and can form stitch data based on the stitch data selected by the operation of the individual sewing mode switching key 70 or the switching key 73 as the selection mechanism, which will be described later. stitches, and the trial sewing action of only the selected stitches can be performed on the buttonhole sewing machine M.

In addition, the control part 100, as a display switching control mechanism, performs switching control when the display of the stitch data on the operation panel 40 is switched by the operation of the switching key 73 as a switching mechanism described later, so that the stitch data stored in the stitch data In the sewing pattern in the sewing pattern storage means (EEPROM104), when the same stitch data is repeatedly included, only the stitch data repeated once is displayed on the sewing pattern.

In addition, the control part 100, as a judging means, judges whether or not a plurality of stitch data stored in the stitch data storage means (EEPROM 104) is included in the sewing pattern stored in the sewing pattern storage means (EEPROM 104). control.

Moreover, the control part 100 controls the presser part actuator 14 which is a presser part moving mechanism, and performs the control which switches the position of the presser part 11. As shown in FIG.

Moreover, the control part 100 controls the cloth transfer device 20 which is a cloth transfer mechanism, and performs control regarding the time to transfer a cloth.

Hereinafter, the operation of the buttonhole sewing machine M (sewing machine body 1 ) of this embodiment, particularly the operation for performing trial sewing, will be described with reference to the flow chart shown in FIG. 5 .

First, when the main power of the buttonhole sewing machine M is turned on, an initial screen for sewing a predetermined sewing pattern (see FIG. 6 ) is displayed on the operation panel 40 of the buttonhole sewing machine M (step S101).

The display screen shown in Fig. 6 is a screen about sewing pattern No.1, which is used to press stitch data No.1, stitch data No.2, stitch data No. In order of data No.3, stitch data No.4, stitch data No.5, stitch data No.6, 6 (6 types) of stitches are formed at intervals of 60.0 mm (feed amount of 60.0 mm) sewing pattern.

A sewing pattern number 51 is displayed on the upper left of the display screen (initial screen) shown in FIG. 6 . In addition, six stitch data numbers 61, 62, 63, 64, 65, and 66 are displayed in the approximate center of the display screen in order from the top.

In addition, at the upper right of the display screen, an individual sewing mode switching key 70 for individually forming the stitches based on each stitch data during trial sewing and for switching to the individual sewing mode is displayed. The individual sewing mode switching key 70 serves as a selection means, and functions as an operation key for stitch data for trial sewing among stitch data combined in a selected sewing pattern.

In addition, at the lower left of the display screen, a ready key 71 for switching between a display screen for setting various data and a display screen (sewing screen) showing a sewing machine start switch for starting sewing is displayed.

Moreover, when the ready key 71 is pressed on the initial screen shown in FIG. 6, it will switch to the sewing screen which is not shown in figure. When the sewing machine start switch (not shown) displayed on the sewing screen is pressed, a driving signal according to the pressed operation is input to the control unit 100 (CPU 101 ), and the buttonhole sewing machine M starts the operation according to the sewing pattern No. .1 Sewing (6 stitches of stitch data No. 1 to 6 are continuously formed at intervals of 60.0 mm).

Then, when the control unit 100 does not detect the signal that the individual sewing mode switching key 70 is pressed on the display screen of FIG. 6 displayed on the operation panel 40, the control unit 100 maintains the state of the initial screen (step S102; "no"). On the other hand, when the control unit 100 detects a signal that the individual sewing mode switching key 70 is pressed on the display screen of FIG. 6 displayed on the operation panel 40 (step S102; “Yes”), the control unit 100, The individual sewing mode screen shown in Fig. 7 is displayed (step S103).

The display screen shown in FIG. 7 is a screen related to stitch data No.1.

On the upper left of the display screen (individual sewing mode display screen) shown in FIG. 7, the stitch data number 61a is displayed. In addition, in the approximate center of the display screen, a display pattern 80 of a simulated stitch shape is displayed, and cloth cutting length data 81, right slit width data 82, and left slit width data 83 are respectively displayed around the display pattern 80. , overlock width data 84 , suture tension data 85 .

At this time, on the display screen shown in FIG. 7 , for example, when the cloth cutting length data 81 is pressed, a raised screen showing the increase/decrease key 86 and the setting change confirmation key 87 is displayed as shown in FIG. 8 . By pressing and operating the increase/decrease key 86 on the projected screen, the setting of the cloth cutting length can be changed. In addition, on the display screen shown in FIG. 8 , an operation to change the cloth cutting length from the setting of 6.4 mm to 7.4 mm can be performed.

After the setting is changed, when the setting change confirmation key 87 is pressed, the individual sewing mode display screen can be returned. At this time, since the cloth cutting length data 81 on the previous display screen has been changed, the display screen (individual sewing mode display screen) shown in FIG. 9 is displayed.

In addition, the setting change is not limited to the cloth cutting length, and the right slit width, left slit width, overlock width, and thread tension data can also be changed by the same operation.

Then, when the control unit 100 does not detect a signal that the ready key 71 is pressed on the display screen displayed on the operation panel 40 (in this case, the display screen shown in FIG. 9 ), the control unit 100 maintains the display. Screen (individual sewing mode screen) state (step S104; "No"). On the other hand, when the control part 100 detects a signal that the ready key 71 displayed on the operation panel 40 is pressed (step S104; YES), the control part 100 displays the sewing mode screen shown in FIG. (step S105).

On the upper left of the display screen (sewing mode screen) shown in FIG. 10 , a trial sewing execution key 72 is displayed.

And, when the control part 100 does not detect the signal that the trial sewing execution key 72 is pressed on the display screen (sewing mode screen) displayed on the operation panel 40, the control part 100 maintains the display screen (sewing mode screen). screen) state (step S106; "No"). On the other hand, when the control section 100 detects a signal that the trial sewing execution key 72 is pressed on the display screen (sewing mode screen) displayed on the operation panel 40 (step S106; "Yes"), the control The part 100, as a sewing control means, performs a trial sewing operation of forming only the stitch corresponding to stitch data No. 1 in each part of the buttonhole sewing machine M (sewing machine body 1) according to a predetermined program (step S107). Then, return to step S105.

In this way, the buttonhole sewing machine M of the present invention is an automatic sewing machine that continuously forms stitches according to a plurality of stitch data based on a sewing pattern combined with a plurality of stitch data, but the sewing mechanism can be controlled so that The operation of the sewing mode switching key 70 or the switching key 73 alone forms a stitch according to the selected stitch data, and only the selected stitch can be tried to sew. That is, with the buttonhole sewing machine M, even if a plurality of stitch data are combined and registered as a sewing pattern, trial sewing can be performed for each stitch data.

Therefore, the buttonhole sewing machine M of the present invention, compared with the conventional automatic sewing sewing machine, does not need to perform trial sewing to form a plurality of stitches (all stitches) according to the stored and registered sewing pattern, and can save sewing time. Waste of production time or sewing thread used for sewing, etc.

Hereinafter, the operation of the buttonhole sewing machine M (sewing machine body 1) of this embodiment will be described with reference to the flow chart shown in FIG. operations on trace data.

On the operation panel 40 of the buttonhole sewing machine M, a sewing mode screen of stitch data on a predetermined sewing pattern as shown in FIG. 10 is displayed (step S201).

In addition, what is shown here is the sewing pattern screen of the stitch data No. 1 on the sewing pattern No. 1.

On the sewing mode screen shown in FIG. 10 , switching keys 73 ( 73 a , 73 b ) are displayed above the display graphic 80 . The switching key 73 has a function as an operation key for switching and selecting stitches for trial sewing among the stitch data combined in the sewing pattern as a selection means and a switching means.

The right switching key 73a of the switching key 73 is a switching key for forwarding the stitch data combined on the sewing pattern in the order of forming the stitches. When the right switching key 73a is pressed, the sewing pattern No. On 1, switch to the sewing mode screen according to each stitch data in the order of stitch data No.1, No.2, No.3, No.4, No.5, No.6, No.1....

The left switching key 73b of the switching key 73 is a switching key that sends back the stitch data combined on the sewing pattern in the order of forming the stitches. When the left switching key 73b is pressed, the sewing pattern No. 1 On the screen, switch to the sewing mode screen according to each stitch data in the order of stitch data No.1, No.6, No.5, No.4, No.3, No.2, No.1....

Then, when the control part 100 does not detect the signal that the switching key 73 is pressed in the display screen (sewing mode screen) displayed on the operation panel 40, the control part 100 maintains the display screen (sewing mode screen). ) state (step S202; "No"). On the other hand, when the control unit 100 detects that the switching key 73 displayed on the operation panel 40 is pressed (step S202; “Yes”), the control unit 100 changes each parameter data (step S203) , to display the next stitch data based on the currently displayed stitch data among the sewing patterns stored in the sewing pattern storage mechanism of the EEPROM 104 . Then, the process returns to step S201, and the sewing mode screen display according to the next stitch data switched as shown in FIG. 12 is performed.

In addition, at this time, the sewing pattern screen of the stitch data No. 2 in the sewing pattern No. 1 is displayed.

In this way, the buttonhole sewing machine M of the present invention can switch the stitch data combined as a sewing pattern according to the order in which the stitches are formed, forward and backward, so even if they are combined and registered as a sewing pattern It is also possible to easily perform trial sewing for each piece of stitch data even with a plurality of stitch data.

Hereinafter, the operation of the buttonhole sewing machine M (sewing machine body 1) of the present embodiment will be described. In particular, when the same stitch data in which the order of forming stitches is different is repeatedly included on the sewing pattern, the lines combined on the sewing pattern will be described. Among the trace data, switch is used to perform the operation of trial sewing stitch data.

In addition, since the processing flow of switching stitch data is the same as the flowchart shown in FIG. 11 , this operation will also be described with reference to the flowchart shown in FIG. 11 .

On the operation panel 40 of the buttonhole sewing machine M, a sewing mode screen for specifying stitch data in a sewing pattern as shown in FIG. 13 is displayed (step S201).

In addition, at this time, the sewing pattern screen of the stitch data No. 1 in the sewing pattern No. 2 is displayed.

The sewing pattern No. 2 is used for stitch data No. 1, stitch data No. 1, stitch data No. 2, stitch data No. 3, stitch data No. 2 in the order of A sewing pattern in which 5 (3 types) of stitches are formed on the fabric at predetermined intervals (feed amount).

On the sewing mode screen shown in FIG. 13 , switching keys 73 ( 73 a , 73 b ) are displayed above the display pattern 80 .

The switching key 73 functions as an operation key for switching and selecting stitch data for trial sewing among stitch data combined in a sewing pattern as described above.

However, as in this sewing pattern No. 2, when the same stitch data in which the order of forming stitches is different is repeatedly included on the sewing pattern, by the processing of the display switching control mechanism according to the control part 100, by switching When the operation of the key 73 and the stitch data display in the switching operation panel 40 are performed, if there are a plurality of identical stitch data repeated on the sewing pattern, only the stitch data whose formation stitch order is earlier can be displayed, And do not display the same stitch data after that, so as to switch.

That is, on sewing pattern No.2, the stitch data is stitch data No.1, stitch data No.1, stitch data No.2, stitch data No.3, stitch data No.2 There are 5 in sequence, but because stitch data No.1 is repeated on No. 1 and No. 2, only the stitch data No. 1 on No. 1 is displayed. In addition, since stitch data No. 2 is repeated on No. 3 and No. 5, only stitch data No. 2 on No. 3 is displayed.

Therefore, when the right switching key 73a of the switching key 73 is pressed, on the sewing pattern No. 2, the sequence of stitch data No. 1, No. 2, No. 3, No. 1... Sewing mode screen for each stitch data. In addition, when the left switch key 73b of the switch key 73 is pressed, on the sewing pattern No. 2, the stitch data No. 1, No. In the case of the above-mentioned right switch key 73a, the method of displaying in reverse order switches to the sewing mode screen based on each stitch data.

Then, when the control part 100 does not detect the signal that the switching key 73 is pressed in the display screen (sewing mode screen) displayed on the operation panel 40, the control part 100 maintains the display screen (sewing mode screen). ) state (step S202; "No"). On the other hand, when the control unit 100 detects a signal that the switching key 73 displayed on the operation panel 40 is pressed (step S202; “Yes”), the control unit 100 performs switching of each parameter data as a display switching control mechanism. Change (step S203 ) to skip the repeated stitch data in the sewing pattern stored in the sewing pattern storage means of the EEPROM 104 , and display according to the stitch data next to the currently displayed stitch data. Then, it returns to step S201, and the display of the sewing mode screen based on the next stitch data switched as shown in FIG. 14 is performed.

In addition, at this time, the sewing mode screen of the third stitch data No. 2 on the sewing pattern No. 2 is displayed.

In this way, the buttonhole sewing machine M of the present invention can switch the stitch data combined as the sewing pattern in the order of forming the stitches forward and backward, so even if it is combined and registered as the sewing pattern It is also possible to easily perform trial sewing for each piece of stitch data even with a plurality of stitch data.

In particular, when the same stitch data with different order of stitch formation is repeated on the sewing pattern, among the repeated stitch data, only the stitch data with the earlier order of stitch formation can be displayed. , so the desired stitch data can be quickly selected. That is, data can be quickly selected without wastingly displaying all overlapping data.

Hereinafter, with reference to the flowchart shown in FIG. 15 , the display processing of the buttonhole sewing machine M (sewing machine body 1 ) of the present embodiment will be described. It is stored in the sewing pattern of the sewing pattern storage mechanism.

On the operation panel 40 of the buttonhole sewing machine M, as shown in FIG. 16 , an individual sewing mode screen for specifying stitch data on a sewing pattern is displayed (step S301 ).

In addition, at this time, the individual sewing mode screen of the stitch data No. 2 on the sewing pattern No. 3 is displayed. On the upper left of the display screen (individual sewing mode screen) shown in Fig. 16 , stitch data number 62a is displayed.

Then, the control section 100, when the signal that the stitch data number 62a part is pressed on the display screen of Fig. 16 displayed on the operation panel 40 is not detected, the control section 100 maintains the display screen state (step S302; " no"). On the other hand, when the control section 100 detects the signal that the stitch data number 62a part is pressed on the display screen of Fig. 16 displayed on the operation panel 40, (step S302; "Yes"), the control section 100 performs Display of the stitch data list screen shown in Fig. 17 (step S203).

The stitch data list screen shown in Figure 17 is divided into upper and lower parts. On the upper half of the screen, it is the stitch data displayed in step S301. At this time, it is about the stitches on sewing pattern No.3. Screen of data No.2. In addition, a return key 76 is displayed on the upper half of the screen.

The lower half of the stitch data list screen is further divided into four parts, and stitch data No.1, No.2, No.3, and No.4 are respectively displayed on the four parts of the screen 74 . . .

And, as shown in Fig. 17, on each 4 part screens 74..., it is displayed to be divided into this stitch data displayed on the 4 part screens 74... displayed on the lower half side on the stitch data list screen for distinguishing, whether A predetermined mark included in a sewing pattern stored in the sewing pattern storage means. On the 4-divided screen 74... in the stitch data list screen in this embodiment, the presence or absence of an asterisk 74a is distinguished as a predetermined mark.

That is, the control unit 100, as a judging means, displays an asterisk 74a as a predetermined mark on the 4-divided screen 74... representing the stitch data, so that it is possible to distinguish between multiple stitches stored in the stitch data storage means (EEPROM 104). Among the pieces of stitch data, it is judged to be the stitch data included in the sewing pattern in the sewing pattern storage means (EEPROM 104).

In the present embodiment, as shown in FIG. 17, on the 4 divided screens 74..., the stitch data of the asterisk 74a (stitch data No.2, No. 2 on the stitch data list screen shown in FIG. No. 3, No. 4) represent the sewing patterns included in the sewing pattern storage means stored in the EEPROM 104 .

In addition, by pressing the up and down keys 75 displayed on the right side of the lower half of the screen on the stitch data list screen shown in FIG. 17 , the stitch data displayed on the 4-split screen 74 .

Then, when the control unit 100 does not detect the signal that the return key 76 is pressed on the stitch data list screen of FIG. 17 displayed on the operation panel 40, the control unit 100 maintains the display screen (stitch data list). screen) state (step S304; "No"). On the other hand, when the control section 100 detects the signal that the return key 76 on the stitch data list screen of Fig. 17 displayed on the operation panel 40 is pressed, (step S304; "Yes"), return to step S301 , and the individual sewing mode screen display of stitch data No. 2 shown in Fig. 16 is performed.

Thus, in the buttonhole sewing machine M of the present invention, on the display screen displayed on the operation panel 40, it is possible to easily confirm the stitch data stored in the EEPROM 104 according to the presence or absence of a predetermined mark (asterisk 74a) indicated together with the stitch data. Whether or not a plurality of stitch data are used in combination as a sewing pattern.

Therefore, it can be easily checked whether or not the buttonhole sewing machine M is the stitch data used for the sewing pattern when automatic sewing is performed.

Therefore, its advantage is: when changing the stitch data on the sewing pattern, or when combining the stitch data as a new sewing pattern, by referring to the frequency of use of the stitch data, etc., it can be changed or changed smoothly. combination.

In addition, in the above embodiments, the buttonhole sewing machine was used as an example to describe the automatic sewing sewing machine, but the present invention is not limited thereto, and the present invention can also be applied to other sewing machines such as buttonhole sewing machines.

In addition, in the above embodiments, an example in which the longitudinal direction (Z-axis direction) of the buttonhole formed by the sewing machine body 1 of the buttonhole sewing machine M is perpendicular to the cloth feeding direction (X-axis direction) has been described, but the present invention is not limited to Here, the buttonhole sewing machine M in which the sewing machine main body 1 is arranged so that the longitudinal direction of the buttonhole coincides with the cloth feeding direction may be used.

In addition, it is needless to say that other specific detailed structures and the like can be appropriately changed.

Claims (4)

1. An automatic sewing machine with: the fabric holding plate on which the fabric is placed, A sewing mechanism for forming stitches on a cloth placed on the cloth holding plate, a cloth transfer mechanism that transfers the cloth placed on the cloth holding plate in a predetermined direction, a stitch data storage mechanism storing stitch data for forming said stitch, a sewing pattern storage means storing predetermined stitch data among a plurality of stitch data to be stored in the stitch data storage means, sewing patterns combined in the order in which the stitches are formed, and After starting according to the signal and sending the cloth for a predetermined distance by the cloth feeding mechanism, the sewing mechanism is operated and stitches are formed according to the prescribed stitch data, thereby continuously forming a plurality of lines corresponding to the sewing pattern on the cloth. trace control mechanism, characterized in that, It also has: selection mechanism and sewing control mechanism, The selection means selects desired stitch data among stitch data combined in the sewing pattern stored in the sewing pattern storage means, The sewing control mechanism controls the sewing mechanism so that it is activated according to a signal and forms a stitch on the cloth according to the stitch data selected by the selection mechanism. 2. The automatic sewing machine according to claim 1, further comprising: a display unit for displaying the stitch data selected by the selection mechanism, and A switching mechanism for switching stitch data displayed on the display unit in order of stitches forming the sewing pattern. 3. The automatic sewing sewing machine according to claim 2, characterized in that, It also has a display switching control mechanism, The display switching control means, when the same stitch data is repeatedly included in the sewing pattern stored in the sewing pattern storage means, When the display of the stitch data on the display unit is switched by the switching mechanism, the stitch data repeated in the sewing pattern is switched so as to be displayed only once. 4. The automatic sewing machine according to any one of claims 2 or 3, further comprising a judging mechanism for judging a plurality of stitches stored in the stitch data storage mechanism. whether the data is included in the sewing pattern stored in the sewing pattern storage means, When displaying a plurality of stitch data stored in the stitch data storage means on the display unit, the result of judgment by the judging means can be intuitively displayed.

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