JPH02259153A - Position setter for forming pattern of embroidery machine - Google Patents

Abstract

PURPOSE:To confirm an orientation state of a sewing range or enbroidery pattern relatively to an embroidery frame before starting embroidery by making a position separate from a needle locating position on a finished cloth by 1/2 of the whole embroidery length in the X-direction in agreement with a designated point on the finished cloth. CONSTITUTION:The whole length of an embroidery pattern in the X-direction is calculated and spotlight (L) is imaged at a position separate from a needle locating position (N) by 1/2 of the whole length of the embroidery pattern in the X-direction. An embroidery frame is moved by manual operation of a jog key to adjust a designated point to the position of the spotlight (L). Thereby, whether the embroidery pattern can be sewn at an accurate position relatively to the designated point on the finished cloth (W) with accurate parallelism in the orienting direction relatively to the finished cloth can be visually observed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pattern forming position setting device for an embroidery machine that forms an embroidery pattern, and in particular, the present invention relates to a pattern forming position setting device for an embroidery machine that forms an embroidery pattern. The present invention relates to a pattern forming position setting device that allows easy confirmation of the embroidery range with respect to degree and embroidery pattern.

[Prior art and the problem to be solved by the invention] As a conventional technology, in order to perform embroidery by combining a plurality of unit patterns such as letters, symbols, figures, etc., a plurality of these unit patterns are selected and stitched on a processed fabric. Align the specified point with the needle drop point,
The so-called "centering stitch" in which the embroidery is performed by dividing the embroidery around a designated point, and the so-called "head stitch" in which the embroidery is performed with the designated point at the beginning are known.

Furthermore, when embroidering in these sewing modes, the positioning of the designated point with respect to the needle drop point on the workpiece fabric in conventional methods is done by manually moving the embroidery frame. However, this is difficult to do visually. This method involves aligning a specified point to the needle drop point using a presser foot, which is difficult to do accurately, and involves looking at a single point on the workpiece fabric, which allows you to grasp the parallelism of the embroidery area to the workpiece cloth. It was difficult to confirm this by just performing this alignment operation.

Additionally, confirmation of the embroidery area with respect to the embroidery hoop was performed using a separate operation for that purpose.

[Means for Solving the Problems and Effects of the Invention] The present invention provides a seam forming device having a needle and a hook, and an X
- an embroidery frame whose movement is controlled in the Y direction, an XY drive unit which controls the embroidery frame in the X-Y direction, a pattern storage means which stores character, symbol and graphic data, and a means for selecting these data. In an embroidery machine that forms an embroidery pattern on the work cloth based on these data, after the pattern is selected by the pattern selection means, the total length of the embroidery pattern in the X direction is calculated, and the needle drop on the work cloth is calculated. A spot is illuminated at a position 1/2 of the total length of the embroidery in the X direction from the point, and a manually operated embroidery frame moving means is shown to indicate the illuminated display position and the designated point on the workpiece cloth. The present invention provides a pattern forming position setting device for an embroidery machine that is equipped with a position specifying means that provides matching guidelines.First, the sewing range relative to the embroidery frame can be easily confirmed before starting embroidery. Second, before starting embroidery, create an embroidery pattern consisting of multiple unit patterns.
There is an effect that it is easy to confirm whether sewing can be performed at an accurate position relative to a designated point on the workpiece cloth and with accurate parallelism in the arrangement direction to the workpiece cloth.

[Example] The present invention will be explained below with reference to Examples.

○Configuration of the embroidery machine First, the configuration of the embroidery machine will be explained with reference to FIG.

In the figure, the embroidery machine includes a sewing machine section 10 and a control section 3.
0, and these are connected by a cable 20 for transmitting and receiving signals and the like.

The sewing machine section 10 has a needle 11 that moves up and down, and a thread loop catching means (not shown) that cooperates with the needle.

Near the sewing section of the embroidery machine, there is a position specifying means 5 to be described later.
0 (see Figure 3).

The embroidery frame 12 that holds the work cloth W is connected to the X-Y drive unit 1
The needle 11 is attached to a support part 14 that is driven and controlled by a needle 11, and is X-Y controlled in synchronization with the needle 11 that moves up and down to form stitches on the work cloth W and perform embroidery. 15 is a presser foot.

- Outline of Control Unit Next, the outline of the control unit 30 will be explained with reference to FIG. 5 and the like. In FIG. 5, a control section 30 occupies approximately the lower half of the figure, an embroidery pattern selection section 32 equipped with a plurality of pattern selection keys 31, and an embroidery pattern selection section 32 that occupies approximately the upper half of the figure, registering the selected pattern, F to specify frame movement, sewing mode, size, arrangement, start and stop of embroidery, etc.
key panel consisting of key part 33
display means 34 (a fourth
(see figure).

The FD read key (ReadData key) 35 is operated after the selection and registration of the pattern to be embroidered is completed, and the corresponding external storage means FD (see Fig. 1) is designated, and the specified external storage is When the 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.

By manually operating the JOG key 36, which serves as a manually operated embroidery frame moving means, it is possible to move only the embroidery frame 12 to a desired position without moving the needle of the sewing machine up or down.

The 5TART key 37 is operated when starting the operation of the embroidery machine.

The 5TOP key is operated when stopping the embroidery machine mid-operation.

- General structure of the apparatus Next, the general structure of the apparatus will be explained with reference to the block diagram of FIG.

In the figure, a pattern selection key 31 configuring the control unit 30,
The function key 33, the FD read key 35, the display means 34, and the external storage data reading means FDD that drives the external storage means FD are connected to the central processing unit CPU via the I10 boat 39, and read the data of the selected embroidery pattern. is read into the working memory RAM from the external storage means FD by the external storage data reading means FDD.

The control memory ROM stores programs for embroidery control and for controlling the pattern forming position setting device of the present invention.

A pulse motor drive circuit DV2 as a driver, an embroidery frame drive device that drives an embroidery frame, a sewing machine motor drive circuit DV3 as a driver, and a sewing machine motor M3 are connected to the central processing unit CPU through an I10 port 4°. , drive shaft rotational phase detection means 41 for detecting the rotational phase of the upper shaft of the sewing machine is also connected.

The I10 boat 40 further includes a position specifying means 50, which will be described later.
The lighting sage M1 is connected via the pulse motor drive circuit DVI, and the lighting LE is driven by the lighting motor M1.
D51 is also connected.

○Structure of position specifying means Next, mainly referring to FIG. 3, the position specifying means 50 will be explained.
The configuration of is explained below. In the figure, a housing of an 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 it,
A pin 53b is provided near the bottom, and 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 is controlled to rotate in the X direction by the rotation of the lighting motor M1.

The movable member 53 has a built-in high-intensity illumination LED 5 which is focused on the work cloth W by a condenser lens 56 when the LED 5 is turned on.

○Explanation of control operation Next, the control operation will be explained with reference to FIG.

First, a case will be described in which embroidery is performed using centering stitches.

T1 is an initial setting step. After the embroidery machine is powered on, various initial settings are made using the STI, and the machine waits for input.

This is the step of Sr2 Function registration.
The on key 33 allows you to change the character arrangement, size, and NEEDL.
Select → with EPO3ITION key 38 and specify centering stitch.

Sr3 key This is a manual step in which, for example, "rHANAK○" is selected as the embroidery pattern using the pattern selection key 31.

The character string HANAKO is displayed on the display section 34.

Sr4 This is the FD read step, and when the FD read key 35 is pressed to read data from the external storage means FD, L
The number of the corresponding external storage device FD is output as a message on the CD, and when the specified external storage device FD is inserted into the external storage data reading device FDD, the embroidery data is read into the working memory RAM, and at the same time the next Sr1 is executed.

Sr5 This is the step of calculating the total length of the embroidery, and the total length of the embroidery is obtained by calculation.

Sr6 is a step of calculating the rotation angle θ of the illumination sage Ml,
A rotation angle e of the lighting motor Ml is calculated.

Sr1, Sr1 This is the step of turning on the lighting LED and driving the lighting motor O. The high-intensity lighting LED 51 lights up, and at the same time, the third
A rotation control signal is given to the illumination motor Ml that drives the movable member 53 of the position specifying means 50 shown in the figure for illuminating a position 1/2 of the total embroidery length in the X direction from the needle drop point N. The illumination motor M1 rotates, and an image of the spot light is formed on the work cloth W as a display position.

As a result, the needle drop point N is located at the rearmost end of the embroidery range.

T9 is a step for manually moving the embroidery frame, in which the embroidery frame 12 is moved by manual operation of the jog key 36,
Align the specified point S with the position of the spotlight.

Due to this movement, the positional relationship between the needle drop point N and the spora)/light does not change; the spot light position is located at the center of the embroidery range, and the needle drop point N is located at the rear end of the embroidery range.
This is the second half of the embroidery area.

With the above control, when embroidering on the top of a pocket, etc., you can visually judge whether the parallelism is correct against stray objects, etc., and when changing the tension of the processed fabric in relation to the embroidery frame. give information.

Furthermore, this allows the user to visually confirm the embroidery area relative to the embroidery frame before starting embroidery.

When head stitching is selected, the same control as described above causes the spot light imaged on the work cloth to be located at the tip of the embroidery range, and the needle drop point N is located at the center of the embroidery range.

By manual operation of the jog key 36, the embroidery frame 12 is moved to align the specified point S with the position of the spotlight.

This movement does not change the positional relationship between the needle drop point N and the spot light, and the spot light is located at the tip of the embroidery range, and the needle drop point N is located at the center of the embroidery range, which is the first half of the embroidery range. It is a part.

This allows you to check the parallelism and embroidery area in the same way as with centering stitches.

〔Effect of the invention〕

As described above, according to the present invention, firstly, the sewing range relative to the embroidery frame can be easily confirmed before starting embroidery;
Second, before starting embroidery, it is possible to sew an embroidery pattern made up of multiple unit patterns at precise positions relative to specified points on the workpiece cloth and with accurate parallelism in the arrangement direction to the workpiece cloth. This has the effect that it is easy to check whether the process is possible.

[Brief explanation of drawings]

The drawings relate to embodiments of the present invention; FIG. 1 is a block diagram of a circuit of an embroidery machine equipped with a pattern forming position setting device, FIG. 2 is a control flowchart, and FIG. 3 is a diagram showing the structure of a position specifying means. , FIG. 4 is a diagram illustrating the operation of the embroidery forming position setting device. 10 is a stitch forming device as a sewing machine part; 11 is a needle; 12
13 is an embroidery frame, 13 is an XY mechanism, 31 is a pattern selection key as a pattern selection means, 36 is a JOG key as an embroidery frame movement means, 50 is a position specifying means, FD is a pattern storage means, N is a needle drop point, L is a spot light on the work cloth as a display position, S is a designated point, and W is the work cloth.

Claims (1)

[Claims] A stitch forming device having a needle and a hook, and an X-
An embroidery frame whose movement is controlled in the Y direction, an XY drive section which controls the embroidery frame in the X-Y direction, a pattern storage means which stores character, symbol and graphic data, and a means for selecting these data. In an embroidery machine that forms an embroidery pattern on the work cloth based on these data, after the pattern is selected by the pattern selection means, the total length of the embroidery pattern in the X direction is calculated, and the needle on the work cloth is X against the falling point
For the embroidery hoop moving means that is manually operated by spot illuminating a position 1/2 of the total length of the embroidery in the direction,
A pattern forming position setting device for an embroidery machine, comprising position specifying means for providing a guideline for matching the spot-illuminated display position with a specified point on the work cloth.