JP3077805B2 - Embroidery machine pattern formation position setting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a pattern forming position setting device of an embroidery machine for forming an embroidery pattern, and more particularly to a pattern forming position setting device capable of surely performing positioning with respect to a designated point on a cloth.

2. Description of the Related Art

As a conventional technique, in order to perform embroidery by combining a plurality of unit patterns such as characters, symbols, and figures, a plurality of these unit patterns are selected, and a designated point on a work cloth is matched with a needle drop point, and designated. So-called "centering sewing", which embroiders with a point at the center, and "head sewing", which embroiders with a designated point at the head, are known. When embroidering is performed in these sewing modes, positioning of a designated point with respect to a needle drop point on a work cloth according to a conventional example is performed by manually moving an embroidery frame. However, this is visually alignment of the designated point with respect to the needle drop point via the presser foot, and it has been difficult to perform accurate alignment. Further, when the needle drop point N is adjusted to a designated point on the cloth, one point on the work cloth is viewed, and it is also difficult to use as a guide for adjusting the cloth tension position. In addition, confirmation of the embroidery area with respect to the hoop was performed by another operation for that purpose.

Means for Solving the Problems and Effects of the Invention

The present invention provides a stitch forming apparatus having a needle and a shuttle, an embroidery frame that holds a work cloth and is controlled to move in the XY directions, an XY drive unit that performs XY control of the embroidery frame, a character, symbol,
The embroidery sewing machine for forming an embroidery pattern on the work cloth based on these data comprises a pattern storage means for storing graphic data and a means for selecting these data. Position designating means for performing spot illumination at a position one-half of the total length in the axial direction of the selected pattern from the needle drop point N of the needle based on the pattern data of the needle, and embroidering in a state where the vertical movement of the needle bar is stopped. Operating means for driving the XY drive mechanism to move the embroidery frame to match the head position of the planned range with the spot lighting position, and the needle drop point N is adjusted when the operating point is adjusted to the spot lighting position. The problem is solved by the pattern forming position setting device of the embroidery machine, which is located at the center position of the planned embroidery area of the selected embroidery pattern. Door can be. Also, in the present invention, the position specifying means may determine that the spot illumination position is the needle drop point N of the needle.
The pattern forming position setting device of the embroidery machine is characterized in that the device is arranged so as to irradiate on the X axis of the XY drive mechanism passing through. Therefore, according to the present invention, the positioning with respect to the designated point on the cloth can be reliably performed, and before the embroidery starts, the range of the half of the total length on one axis on which the selected pattern is formed in the hoop is formed. It has the effect of being able to confirm.

【Example】

Hereinafter, the present invention will be described with reference to examples. First, the configuration of the embroidery machine will be described with reference to FIG. In the figure, the embroidery machine includes a sewing machine section 10 and a control section 30.
These are connected by a cable 20 for transmitting and receiving signals and the like. The sewing machine unit 10 has a needle 11 that moves up and down and a thread catching means (not shown) that cooperates with the needle. In the vicinity of the sewing area of the embroidery machine, position specifying means described later
50 (see FIG. 3) are arranged. The embroidery frame 12 for holding the work cloth W is provided with an XY drive unit 13.
XY control is performed in synchronization with the needle 11 that moves up and down to form stitches on the work cloth W to perform embroidery. 15 is a presser foot. Next, an outline of the control unit 30 will be described with reference to FIG. 5 and the like. In FIG. 5, the control unit 30 occupies a substantially lower half of the figure, and embroidery pattern selecting unit 32 provided with a plurality of pattern selection keys 31 and occupies a substantially upper half of the figure. Function to specify frame movement, sewing mode, size, arrangement, start / stop of embroidery, etc.
A key panel KEY including a key section 33 is provided, and a display means 34 (see FIG. 4) for displaying an embroidery pattern, an operation message, and the like by operating the key panel and the like to the user is provided. The FD read key (ReadData key) 35 is operated after the selection and registration of the embroidery pattern is completed. With this operation, the corresponding external storage means FD (see FIG. 1) is designated.
When the designated external storage means FD is inserted into the external storage data reading means FDD, the data of the selected embroidery pattern is read into the working memory RAM. JOG key 3 as hand-operated hoop moving means
6 can move only the embroidery frame 12 to a desired position by the manual operation without moving the needle of the sewing machine up and down. The START key 37 is operated when starting operation of the embroidery sewing machine. The STOP key is operated, for example, when stopping the embroidery machine in the operating state. Next, the schematic configuration of the apparatus will be described with reference to the block diagram of FIG. In the figure, a pattern selection key 31, which constitutes the control unit 30,
Function key 33, FD read key 35, display means 34, external storage data reading means FDD for driving external storage means FD
Is connected to the central processing unit CPU via the I / O port 39, and the data of the selected embroidery pattern is read from the external storage means FD to the working memory RAM by the external storage data reading means FDD. ing. The control memory ROM stores programs for controlling embroidery and for controlling the pattern forming position setting device of the present invention. A pulse motor driving circuit DV2 as a driver, an embroidery frame driving device for driving an embroidery frame, a sewing machine motor driving circuit DV3 as a driver, and a sewing machine motor M3 are connected to the central processing unit CPU via the I / O port 40. A drive shaft rotational phase detecting means 41 for detecting the rotational phase of the upper shaft of the sewing machine is connected. The I / O port 40 is further connected to an illumination motor M1 of a position specifying means 50 described later via a pulse motor drive circuit DV1, and is also connected to an illumination LED 51 driven by the illumination motor M1. Next, the position designating means 50 will be described mainly with reference to FIG.
Will be described. In the figure, a housing of the illumination motor M1 is fixed to a support member 52 fixed to the sewing machine frame, and a movable member 53 is held rotatably about a pin 54. The movable member 53 has a gear portion 53a formed above the movable member 53, and has a pin 53b near the lower portion thereof. The pin is guided by the fan-shaped long groove 52a of the support member 52. The gear portion 53a meshes with a gear 55 attached to the output shaft of the lighting motor M1, and the movable member 53
By the rotation of, the rotation is controlled in the X direction. The movable member 53 has a built-in high-intensity illumination LED 51, which is focused on the work cloth W by the condenser lens 56 when it is turned on. Next, the control operation will be described with reference to FIG. Here, first, a case where embroidery is performed by centering sewing will be described. ST1 This is an initial setting step. After the power of the embroidery machine is turned on, various initial settings are made in ST1, and an input waiting state is set. ST2 This is a function registration step, in which the function key 33 is used to select the arrangement and size of characters, and the NEEDLEPOSITION key 38 is used to select → to specify centering sewing. ST3 This is a key input step in which, for example, “HANAKO” is selected as an embroidery pattern from the pattern selection key 31. The display section 34 displays the character string HANAKO. ST4 This is the step of FD reading, and the data is stored in external storage
When the FD read key 35 is pressed to read from the FD, the number of the corresponding external storage means FD is displayed on the LCD as a message, and when the designated external storage means FD is inserted into the external storage data reading means FDD, the embroidery data is read. Is read into the working memory RAM, and at the same time, the next ST5 is executed. ST5 This is a step of calculating the total embroidery length, and the total embroidery length is obtained by calculation. ST6 is a step of calculating a turning angle θ of the illumination motor M1,
The rotation angle θ of the illumination motor M1 is calculated. ST7, ST8 This is the step of turning on the illumination LED and driving the illumination motor θ. The illumination LED 51 of high brightness is turned on, and at the same time, the illumination motor M1 for driving the movable member 53 of the position specifying means 50 shown in FIG.
Is supplied with a rotation control signal for illuminating a position which is 1/2 the full length of the embroidery from the needle drop point N in the X direction, the illumination motor M1 is rotated, and spot illumination is performed on the work cloth W. The spot light L as a display position forms an image. As a result, the needle drop point N is located at the rearmost end of the embroidery range. ST9 This is a step of manually moving the embroidery frame. The embroidery frame 12 is moved by manual operation of the jog key 36, and the designated point S is adjusted to the position of the spot light L. Due to this movement, the positional relationship between the needle drop point N and the spot light L does not change, the position of the spot light L is located at the center of the embroidery area, and the needle drop point N is located at the last end of the embroidery area.
This is the second half of the embroidery area. By the above control, when embroidering on the top of the pocket, etc., when there is a target on the top of the pocket with reference to the line connecting the spot illumination position and the needle drop point N of the needle with respect to the target, etc. This can be used as a guide for adjusting the upholstery position. In addition, by the distance between the spot illumination position and the needle drop point N, it is possible to visually confirm a half distance of the entire length of the embroidery area in the uniaxial direction with respect to the embroidery frame before starting embroidery. When head sewing is selected, the spot light L imaged on the work cloth is located at the tip end of the embroidery range and the needle drop point N is located at the center of the embroidery range by the same control as described above. The embroidery frame 12 is moved by manual operation of the jog key 36, and the designated point S is adjusted to the position of the spot light L. This movement does not change the positional relationship between the needle drop point N and the spot light L. The position of the spot light L is located at the tip of the embroidery range, and the needle drop point N is located at the center of the embroidery range. The first half of Thus, as in the case of the centering sewing, when there is a target with reference to a line connecting the spot illumination position and the needle drop point N of the needle, this can be used as a guide for adjusting the upholstery position. . The spot illumination position and the needle drop point N
The distance between the embroidery frame and the embroidery frame can be visually confirmed before the start of embroidery by a half of the total length of the embroidery area in the axial direction.

【The invention's effect】

As described above, according to the present invention, a position is calculated based on a plurality of pattern data selected by the pattern selecting means, and a position corresponding to a half distance of the entire length in the uniaxial direction from the needle drop point N of the needle is spot-lit. Operating means for driving the XY drive mechanism to move the embroidery frame to match the head position of the embroidery expected range with the spot illumination position in a state where the vertical movement of the needle bar is stopped, and Since the needle drop point N is located at the center position of the embroidery scheduled area of the selected embroidery pattern when the spot illumination position is made coincident with the operation of the operation means, the positioning with respect to the designated point on the cloth is reliably performed. be able to. Further, before the start of embroidery, it is possible to confirm a range of 全長 of the total length on one axis on which the selected pattern is formed in the embroidery frame. Further, since the position specifying means is arranged so that the spot illumination position irradiates the X-axis of the XY driving mechanism passing through the needle drop point N of the needle, the spot illumination position and the needle drop point N of the needle are determined. This has the effect that the connecting line can be used as a guide for adjusting the upholstery position.

[Brief description of the drawings]

1 is a block diagram of a circuit of an embroidery machine provided with a pattern forming position setting device, FIG. 2 is a flowchart of control, and FIG. 3 is a diagram showing a structure of position specifying means. FIG. 4 is a perspective view showing a schematic configuration of the embroidery machine, FIG. 5 is a view showing a key panel section of a control section of the embroidery machine, and FIG. 6 is a view for explaining the operation of the pattern forming position setting device. . 10 is a stitch forming apparatus as a sewing machine part, 11 is a needle, 12 is an embroidery frame, 13 is an XY mechanism, 31 is a pattern selection key as a pattern selection means, and 36 is a embroidery frame moving means.
JOG key, 50 is position designation means, FD is pattern storage means, N is needle drop point, L is spot light on work cloth as display position,
S is a designated point, and W is a work cloth.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-203185 (JP, A) JP-A-59-69992 (JP, U) JP-A-59-76583 (JP, U) (58) Investigation Field (Int.Cl. ⁷ , DB name) D05C 9/22

Claims (2)

(57) [Claims] 1. A stitch forming apparatus having a needle and a shuttle, an embroidery frame holding a work cloth and controlled to move in the XY directions, an XY drive unit for XY controlling the embroidery frame, and a character ,symbol,
The embroidery sewing machine for forming an embroidery pattern on the work cloth based on these data comprises a pattern storage means for storing graphic data and a means for selecting these data. A position designating means for performing spot illumination at a position half the length in the uniaxial direction of the selected pattern from the needle drop point N of the needle based on the embroidery pattern data of the embroidery pattern, and a state in which the vertical movement of the needle bar is stopped Operating means for driving the XY drive mechanism to move the embroidery frame in order to match the head position of the embroidery scheduled area with the spot lighting position, and to drop the needle when the spot lighting position is matched by operating the operating means. A pattern forming position setting device for an embroidery machine, wherein the point N is located at a position which is a half of a total length of the selected embroidery pattern in the axial direction. 2. The apparatus according to claim 1, wherein said position specifying means is arranged so that a spot illumination position is irradiated on an X-axis of an XY driving mechanism passing through a needle drop point N of said needle. Embroidery machine pattern formation position setting device.