JP2005087430A - Parts sewing method in embroidery sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To sew parts efficiently when the parts such as a sequin or the like are sewed with jumping by omitting unnecessary actions of a parts supplying device ahead of and behind the jumping. <P>SOLUTION: An embroidery sewing machine sews an embroidery pattern D based on stitching codes F1 to F2 recorded on a puncturing tape. A supplying mechanism of a sequin device is moved down to an operational position based on a stopping code F3. A sequin Sq is supplied to a sewing position based on jumping codes F4 to F6 and sewed on a processed cloth. The supply of the sequin Sq is stopped on the basis of S jumping codes F7 to F8 and a stitching St without the sequin is formed on the processed cloth. After sewing the next sequin Sq (F9 to F10), the supplying mechanism is lifted up to a suspending position based on a stopping code F11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method of sewing parts such as sequins and buttons on a work cloth in an embroidery sewing machine.

2. Description of the Related Art Conventionally, in an embroidery sewing machine, a technique for sewing a decorative sequin (also called sequin or spangle) on a work cloth on an embroidery frame is known. For example, Patent Document 1 describes a technique for preventing the turnover of sequins caused by cloth feeding by retracting the needle bar from the needle bar with a jump solenoid and tightening the upper thread with a balance while sewing sequins. ing. Japanese Patent Application Laid-Open No. H10-228707 describes a technique for setting a plurality of embroidery operations such as sequin sewing, color change, jump, etc. collectively by keyboard operation for each stop code recorded on a perforated tape.
Japanese Patent Laid-Open No. 2-144094 Japanese Patent Laid-Open No. 5-220284

  By the way, when using the embroidery data stored in the perforated tape, the movement amount per stitch of the embroidery frame is limited by the data capacity of the tape (for example, 12.7 mm in the case of 8-bit tape). Therefore, as shown in FIG. 7A, the sequin Sq is sewn at intervals, or as shown in FIG. 7B, a large sequin Sq is sewn. When P exceeds the maximum movement amount Lmax of the embroidery frame, the sequin Sq needs to be jump-sewn (fly stitching).

  Conventionally, a technique as shown in FIG. 8 is known as a sequin sewing method involving jump sewing. This embroidery sewing machine is provided with a sequin device that can be raised and lowered to a rest position and an operating position, and at the start of sewing, the sequin device is lowered to the operating position (S51). Then, the sequins are supplied one by one from the sequin device to the sewing position, the sewing machine spindle and the embroidery frame are driven, and the required number of sequins are sewn on the work cloth (S52).

  When the jump code in the embroidery data is confirmed (S54), the sequin device is raised to the rest position in order to stop the supply of sequin (S55). Then, thread trimming is performed (S56), the needle bar is stopped (S57), and the embroidery frame is moved to the next sewing start position (S58). Subsequently, in order to resume the supply of sequins, the sequin device is lowered to the operating position (S51), the next sequin is sewn (S52), the end of the embroidery data is confirmed (S53), and the sequin device is Raise to a rest position (S59).

  However, according to the conventional parts sewing method, the supply / stop of sequins is switched according to the position of the sequin device, so a wasteful operation of raising and lowering the sequin device before and after the jump is required, and time is required for jump sewing. There was such a problem. Further, since the thread trimming is performed before the jump, there is no seam in the jump section, and the sequin immediately before the jump and the sequin immediately after the jump are disconnected, which adversely affects the appearance of the entire embroidery pattern. Note that Patent Documents 1 and 2 do not mention a technique related to raising / lowering a sequin device or jump sewing.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, omit unnecessary operations of the parts supply device, and to efficiently perform the jump sewing of the parts, and form a seam in the jump section to include the parts. An object of the present invention is to provide a method for sewing parts in an embroidery sewing machine that can process an embroidery pattern with great appearance.

  In order to solve the above-described problems, the parts sewing method according to the present invention is a period in which a parts supply device is arranged at an operation position in an embroidery sewing machine that is capable of moving the parts supply device between a rest position and an operation position. During the process, the parts are supplied to the sewing position and sewn to the work cloth, and the parts supply is stopped until the next sewing start position, and the part-free seam is formed on the work cloth. It is characterized by that.

  The parts sewing method of the present invention can be applied to sewing various parts (sewing parts) such as buttons, beads, marks, patches, labels, etc. in addition to sequins. The movement direction of the parts supply device is not limited to the vertical direction with respect to the work cloth, and may be an oblique vertical direction, a front-rear direction, a left-right direction, or a direction that does not hinder the sewing operation including the movement of the embroidery frame. Further, it is preferable to use a function code for embroidery sewing machine control in that the existing control system can be used for controlling the parts supply apparatus.

  Specifically, in the step of sewing parts, it is preferable to operate the parts supply device and drive the needle bar and the embroidery frame based on one sewing code recorded on the recording medium. Further, in the step of forming the seam without parts, it is preferable to stop the parts supply device and drive the needle bar and the embroidery frame based on one part jump code recorded on the recording medium. In addition to the perforated tape, various media such as a flexible disk, a CD-ROM, and a DVD can be used as the recording medium.

  According to the parts sewing method according to the present invention, the supply of parts is stopped in a state where the parts supply device is arranged at the operating position, so there is no need to raise and lower the parts supply device before and after jumping, and unnecessary operations are saved. Parts can be jump-sewed efficiently. Further, since the stitch is formed in the jump section, the part immediately before the jump and the part immediately after the jump can be made continuous at the stitch, and the embroidery pattern including the part can be processed with a good appearance.

  Hereinafter, an embodiment in which the present invention is embodied in a sequin sewing method will be described with reference to the drawings. As shown in FIGS. 1 and 2, the embroidery sewing machine of this embodiment is equipped with one sequin device 2 in front of the head 1. A frame 3 of the sequin device 2 is attached to one side surface of the head 1, and a slide base 4 is supported on the frame 3 via a rail member 5 so as to be able to move up and down obliquely. Note that two sequin devices 2 may be installed on both the left and right sides of the head 1.

  The slide base 4 includes a reel 8 around which a sequin strip 7 in which sequins are connected in series is wound, a guide 9 that guides the sequin strip 7, a tensioner 10 that applies tension to the sequin strip 7, and the sequin strip 7 as a needle bar. 11 is provided with a supply mechanism 12 for feeding to the lower side, and a cutter 14 for cutting the leading sequin Sq from the sequin band 7. An elevating air cylinder 15 is installed between the slide base 4 and the frame 3, and when the piston rod 16 is extended, the supply mechanism 12 is lowered to an operating position close to the needle bar 11 (see FIG. 2 a). During contraction, the supply mechanism 12 rises to a rest position away from the needle bar 11 (see FIG. 2b).

  The supply mechanism 12 includes a sequin feed motor 17 (stepping motor) and a slider 18, and the slider 18 is driven back and forth on the rod 22 via the lever 20 and the link 21 by forward and reverse rotation of the motor shaft 19. A pin 23 is provided on the slider 18 so as to be able to swing up and down so as to enter and exit the hole of the sequin Sq (see FIG. 5). Then, at the operating position of the supply mechanism 12, the slider 18 moves back and forth, the pin 23 feeds the sequin band 7 toward the needle bar 11, and when the needle bar 11 is lowered, the needle stopper 24 steps down the cutter 14, and the cutter 14 Cuts the sequin band 7 and the leading sequin Sq is supplied to the sewing position of the work cloth 26 stretched around the embroidery frame 25.

  As shown in FIG. 3, the controller 30 of the embroidery sewing machine incorporates a microprocessor 31 and reads a function code recorded on an operation panel 43 having a display 42 and a punched tape 35 as a recording medium. A tape reader 36 is connected. Based on data input from the tape reader 36 by the CPU 32 of the microprocessor 31, a motor 37 for driving the sewing machine spindle, motors 38 and 39 for driving the embroidery frame 25 in the X and Y directions, and the movement of the thread trimmer. The thread trimming solenoid 40 that drives the knife, the jump solenoid 41 that retreats the needle bar from the needle bar 11, the elevating air cylinder 15 of the sequin device 2, and the sequin feed motor 17 are controlled.

  Next, the overall procedure of the sequin sewing method in the embroidery sewing machine having the above configuration will be described with reference to FIG. First, at the start of sewing, the raising / lowering air cylinder 15 of the sequin device 2 is energized, and the supply mechanism 12 is lowered from the rest position to the operating position (S1). Next, the sequin feed motor 17 rotates, and the sequin Sq is supplied to the sewing position one by one. At the same time, the main shaft drive motor 37 and the embroidery frame drive motors 38 and 39 rotate to drive the needle bar 11 and the embroidery frame 25, and the required number of sequins Sq are sewn to the work cloth 26 (S2).

  Subsequently, when the S jump code in the embroidery data is confirmed (S4), the sequin feed motor 17 is stopped (S5), and the supply of the sequin Sq is stopped until the next sewing start position. Then, the needle bar 11 is driven by the main shaft drive motor 37 (S6), and the embroidery frame 25 is driven by the embroidery frame drive motors 38 and 39 (S7), so that the stitches without sequins are formed on the work cloth 26. . Thereafter, the next sequin Sq is sewn (S2), and when the end of the embroidery data is confirmed (S3), the elevating air cylinder 15 is de-energized and the supply mechanism 12 rises from the operating position to the rest position ( S8).

  5 and 6 show the above sewing method in more detail in association with the function code recorded on the perforated tape 35. FIG. Here, stitch codes, stop codes, jump codes, and S jump codes are used as function codes. Among them, the jump code is used as the sewing code of the present invention, and the S jump code is used as the part jump code of the present invention. Each code is provided with command information for each needle and XY coordinate information (position information of the embroidery frame 25) for each needle.

F1 → F2: The needle bar 11 and the embroidery frame 25 are driven based on the stitch code, and the embroidery pattern D is sewn on the work cloth 26.
F3: Based on the stop code, the thread trimming device is driven, the needle bar 11 and the embroidery frame 25 are stopped, and the supply mechanism 12 is lowered from the rest position to the operating position.
F4 → F6: Based on the jump code, the supply mechanism 12, the needle bar 11 and the embroidery frame 25 are driven, the sequin Sq is supplied to the sewing position, and the work cloth 26 is sewn.

F7 → F8: Based on the S jump code, the supply of the sequin Sq is stopped in the state where the supply mechanism 12 is arranged at the operating position, the needle bar 11 and the embroidery frame 25 are driven, and the work cloth 26 is sewn without sequin. The eyes St are formed.
F9 → F10: Based on the jump code, the supply mechanism 12, the needle bar 11, and the embroidery frame 25 are driven, and the sequin Sq is sewn to the work cloth 26.
F11: Based on the stop code, the thread trimmer is driven, the needle bar 11 and the embroidery frame 25 are stopped, and the supply mechanism 12 is raised from the operating position to the rest position.

According to the sequin sewing method of this embodiment, the following effects can be expected.
(A) Since the supply of the sequin Sq is stopped in a state where the supply mechanism 12 of the sequin device 2 is located at the operating position, the useless operation of raising and lowering the supply mechanism 12 before and after the jump is omitted, and the sequin Sq is efficiently jump-sewn. can do.
(B) Since the stitch St is formed in the jump section, the sequin Sq immediately before the jump and the sequin Sq immediately after the jump are made continuous at the stitch St, so that the appearance of the entire embroidery pattern including the sequin Sq can be improved.

(C) In the step of sewing sequin Sq, since one sequin Sq is supplied and sewn simultaneously based on one jump code, the sequin Sq can be sewn in a short time with data for one stitch.
(D) As shown in FIG. 6, since the needle bar hit does not respond to the jump code, the useless operation of the needle bar hit during the sequin sewing period can be omitted.
(E) In the step of forming the stitch St without sequin, since the supply of the sequin Sq is stopped and the stitch St is formed simultaneously based on one S jump code, the function for controlling the sequin device 2 separately. No code is required, and jump sewing of sequin Sq can be performed efficiently with a small number of codes.

The present invention is not limited to the above-described embodiment, and can be embodied by being appropriately changed without departing from the spirit of the invention, as exemplified below.
(1) In the above embodiment, the seam without sequin is formed based on the S jump codes F8 and F9. However, when a function code cannot be newly provided in the punched tape 35, an existing function code (for example, a stitch code) is formed. Or a stop code, etc.), which is recognized by the CPU 32 of the controller 30 as the part jump code of the present invention.

(2) FIGS. 5 and 6 show the sewing method when color change is not performed. When color change is performed, a function code for color change is inserted before jump code F4 or F9. Then, based on the color change code, the jump solenoid 41 (see FIG. 3) is turned on, the needle bar strike is retracted from the needle bar 11, and the color change mechanism is operated. Thereafter, based on the jump code F4 or F9, the jump solenoid 41 is turned OFF, the needle bar strike is made to enter the needle bar 11, and the sequin Sq is sewn with an upper thread of a different color.

(3) In an embroidery sewing machine equipped with two sequin devices 2 on the left and right sides of the head 1, a first stop cord for lowering the left supply mechanism 12 so that both supply mechanisms 12 can be operated separately; A second stop cord for lowering the right supply mechanism 12 and a third stop cord for raising both supply mechanisms 12 are provided. In this way, in an embroidery sewing machine having a single needle head or a multi-needle head, a sewn product having a high decorative effect can be processed, for example, by supplying sequins Sq having different sizes and shapes from the left and right supply mechanisms 12 and sewing them. . Further, if both supply mechanisms 12 are arranged at the rest position, there is an advantage that normal embroidery sewing can be carried out using all the needles without any trouble.

(4) Since the diameter of the sequin Sq varies depending on the type, the controller 30 is provided with a function for setting the amount of sequin Sq delivered. Specifically, a setting menu is stored in the ROM 33 (see FIG. 3) of the microprocessor 31, and the user selects or key-inputs the size of the sequin Sq on the operation panel 43 while viewing the display 42. The CPU 32 temporarily stores this setting data in the RAM 34, reads it in response to the jump code F4 and the like, and controls the sequin feed motor 17 of the supply mechanism 12. As a result, the slider 18 is driven with a stroke according to the sequin size, and the center of one sequin Sq is accurately positioned at the sewing position. When two sequin devices 2 are installed, a menu for setting sequin size separately is prepared.

It is a side view of the head of an embroidery sewing machine and a sequin device showing one embodiment of the present invention. It is a side view which shows the raising / lowering mechanism of the sequin apparatus of FIG. It is a block diagram which shows the control system of the embroidery sewing machine of FIG. It is a flowchart which shows the sequin sewing method by the embroidery sewing machine of FIG. FIG. 5 is a schematic diagram showing the sewing method of FIG. 4 in association with a function code. 6 is a time chart showing the operation of each part of the embroidery sewing machine based on the function code of FIG. 5. It is a schematic diagram which shows the sewn jump sewing form. It is a flowchart which shows the conventional sequin sewing method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Head 2 Sequin device 7 Sequin belt 11 Needle bar 12 Supply mechanism 14 Cutter 15 Lifting air cylinder 17 Sequin feed motor 25 Embroidery frame 26 Work cloth 30 Controller 31 Microprocessor 32 CPU
35 Perforated tape Sq Sequin

Claims (3)

  In an embroidery sewing machine equipped with a parts supply device that can be moved between a rest position and an operating position, the process of supplying the parts to the sewing position and sewing them to the work cloth while the parts supply device is located at the operating position And a part sewing method for an embroidery sewing machine, wherein the supply of parts is stopped until the next sewing start position, and a stitch without parts is formed on a work cloth.   2. The embroidery sewing machine according to claim 1, wherein in the step of sewing the parts, the parts supply device is operated and the needle bar and the embroidery frame are driven based on one sewing code recorded on the recording medium. Sewing method for parts.   2. The step of forming a seam without parts includes stopping a parts supply device and driving a needle bar and an embroidery frame based on one part jump code recorded on a recording medium. Parts sewing method for the embroidery sewing machine described.

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