JPH10192579A - Textile machine pattern making equipment - Google Patents

Abstract

(57) [Problem] To provide a pattern creating apparatus for a textile machine, which can sufficiently reduce vibration generated at the time of pattern creating. Kind Code: A1 Two pairs of planar linear motors are synchronously driven at front-rear and left-right symmetrical positions, so that a pair of an arm portion and a bed portion and a pair of other arm portions are provided.
And the pair of bed portions 29a are respectively symmetrically moved in the surface direction of the work cloth 5 to form a pattern on the work cloth 5 by the respective pairs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling the driving of a pair of a first support and a second support based on preset information, and forming a pattern on a work cloth disposed between the two supports. The present invention relates to a pattern creating device for a textile machine that creates a pattern.

[0002]

2. Description of the Related Art Conventionally, in the field of textile machines, for example, in the case of a sewing machine,
A drive source such as a motor is operated by an output signal based on sewing data read from a storage device, and a pattern for performing sewing by freely moving a holding frame for holding a work cloth in the X and Y directions in a plane. Devices are known.

According to the conventional pattern forming apparatus, however, stitches are formed by moving the holding frame, which is a means for holding the work cloth, in the X and Y directions and moving the sewing machine needle up and down. In order to move the holding frame in the Y direction, a space twice as large as the length of the holding frame in the X and Y directions, that is, four times as much space is required, and there is a problem that the installation area increases accordingly.

In order to shorten the sewing time, studies have been made to increase the moving speed of the holding frame in synchronization with the vertical speed of the sewing machine needle. However, there is a limit to this, and the production capacity in sewing is limited. There were also problems that could not be raised.

In order to solve the problem of the conventional pattern forming apparatus, the present applicant operates a drive source by an output signal sent from a storage device in synchronization with the vertical movement of a sewing machine needle, and A plurality of pairs of the first support and the second support are driven and controlled based on the set information, and the pairs are freely moved in the X and Y directions in a plane to perform sewing on the work cloth. A pattern creating apparatus is proposed in Japanese Patent Application No. Hei 8-161394.

[0006]

However, according to the proposed pattern forming apparatus, a plurality of identical patterns are formed by simultaneously driving each pair of a plurality of first supports and a plurality of second supports. However, in order to create the same pattern like this,
A plurality of pairs of the first support and the second support are controlled to perform the same operation in the X and Y planes.

Therefore, there is a problem that all the first and second support members being sewn become vibrating forces in the X and Y directions to cause a large vibration in the apparatus.

[0008] Further, for example, the first support is entirely disposed above the work cloth, and the second support is entirely disposed below the work cloth.

Therefore, for example, if the first support is provided with a member that moves up and down, such as a needle bar, when the same pattern is created, the excitation forces of all the needle bars being sewn are added. ,
There is a problem that a large vibration force is generated in the Z direction orthogonal to the X and Y directions to cause a large vibration in the device.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a pattern making apparatus for a textile machine which can sufficiently reduce vibrations generated at the time of pattern making. And

[0011]

In order to achieve this object, a pattern forming apparatus for a textile machine according to the present invention comprises a plurality of first supports provided on one surface of a work cloth. ,
A plurality of second supports provided on the other surface side of the work cloth so as to correspond to the plurality of first supports, respectively, and a pair of the corresponding first support and second support are attached to the work cloth. Driving means for moving in the plane direction, and moving each pair of the plurality of first support bodies and the plurality of second support bodies in the plane direction of the work cloth for each pair thereof so that the first support body and the second support body are moved. For those that create a pattern on the work cloth by cooperation with the body,
In particular, a corresponding pair of said first and second supports,
Control means is provided for controlling the driving means such that another corresponding pair of the first support and the second support moves symmetrically in the surface direction of the work cloth.

Therefore, according to the pattern making apparatus for a textile machine of the present invention, each pair of the first support and the second support is moved in the surface direction of the work cloth by the driving means, and the first support and the second support are moved in the first direction. A pattern is created on the work cloth by the cooperation of the support and the second support. In this case, the control means includes:
By controlling the driving unit, the corresponding pair of the first support and the second support and the other corresponding pair of the first support and the second support are symmetric in a plane direction of the work cloth. Move. That is, for example, the respective pairs are moved by the same amount of movement in a direction approaching or moving away from each other around a reference line in the X and Y directions or a certain reference point. In this case, the pattern created by the corresponding pair of the first support and the second support and the pattern created by the other corresponding pair of the first support and the second support are shown in FIG. Created in the opposite arrangement as shown. By adopting such a movement mode, the vibration in the surface direction of the work cloth, which is caused by the movement of each pair, is sufficiently reduced.

According to a second aspect of the present invention, there is provided a pattern forming apparatus for a textile machine, wherein a plurality of first supports provided on one surface side of the work cloth and the plurality of first supports are processed to correspond to the plurality of first supports, respectively. A plurality of second support members provided on the other surface side of the cloth; and a driving unit configured to move a corresponding pair of the first support member and the second support member in a surface direction of the work cloth. Each pair of one support and a plurality of second supports is moved in the plane direction of the work cloth for each pair, and a pattern is formed on the work cloth by the cooperation of the first support and the second support. For the object to be produced, in particular, the first support and the second support corresponding to each other in pairs are sandwiched between the first support and the second support of another pair with the work cloth. Are arranged in a reverse positional relationship.

Therefore, according to the pattern forming apparatus for a textile machine of the present invention, each pair of the first support and the second support is moved in the surface direction of the work cloth by the driving means, and the first support and the second support are moved in the first direction. A pattern is created on the work cloth by the cooperation of the support and the second support. In this case, the pattern created by the corresponding pair of the first support and the second support and the pattern created by the other corresponding pair of the first support and the second support are shown in FIG. As shown, they are created in the opposite arrangement relationship, and are created on the front and back of the work cloth. Vibrations generated from the respective pairs along with the pattern creation, particularly, vibrations in a direction orthogonal to the surface direction of the work cloth can be sufficiently reduced by causing interference to cancel each other.

According to a third aspect of the present invention, in the pattern forming apparatus for a textile machine, each pair of the first support and the second support arranged in opposite positions with respect to each other with the work cloth interposed therebetween is processed by the pair. There is provided control means for controlling the driving means so as to move symmetrically in the plane direction of the cloth.

Therefore, according to the pattern making apparatus for a textile machine of the present invention, each pair of the first support and the second support arranged in the opposite positional relationship to each other with the work cloth interposed therebetween is formed by the work cloth. Are moved symmetrically in the plane direction. That is, similarly to the first aspect of the present invention, for example, a reference line in the X and Y directions,
Alternatively, each pair is moved by the same amount in the direction approaching or moving away from each other with a certain reference point as a center. In this case, by adopting the movement mode as described above, not only the vibration in the direction orthogonal to the surface direction of the work cloth can be sufficiently reduced, but also the vibration in the surface direction of the work cloth can be sufficiently reduced. Can be reduced.

Further, according to a fourth aspect of the present invention, in the pattern forming apparatus for a textile machine, the driving unit includes the first support and the second support.
It is constituted by a planar linear motor for moving the support along the surface of the work cloth. Therefore, the pair of the first support and the second support is moved along the surface of the work cloth by the planar linear motor. By using this planar linear motor, the driving means can be simplified and reduced in size.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a pattern forming apparatus for a textile machine according to the present invention.

FIG. 1 is an overall perspective view of a pattern forming apparatus 1 using a planar linear motor 3.

The configuration of the pattern forming apparatus 1 of the present embodiment using the planar linear motor 3 will be described with reference to the overall perspective view of FIG. As shown in the figure, the main body of the pattern creating device 1 is composed of a base 11, a support 13 provided at four corners of the base 11, and a top plate 15 supported on the upper end of the support 13. ing.

The flat linear motor 3 is provided on the back surface of the top plate 15. The planar linear motor 3 includes a flat platen 17a as a stator and the platen 1
7a, a plurality of movers 19a which are magnetically coupled at the lower part of the platen 17a and which can freely move two-dimensionally in the area of the platen 17a.

Here, the outline of the planar linear motor 3 will be described. The planar linear motor 3 is constituted by a known device as disclosed in, for example, Japanese Patent Application Laid-Open No. 8-6642. That is, linear motors (not shown) are respectively arranged on the upper surface of the mover 19a along four sides of the rectangle, and a pair of linear motors corresponding to the sides facing each other is one of X and Y. A pair of linear motors that generate thrust and that correspond to the other opposing sides generate the other of the X and Y thrusts. A steel plate (not shown), which is a magnetic material, is fixed to the lower surface of the platen 17a. The surface of the steel plate has regularly square teeth (not shown) at regular intervals in the X and Y directions. Are formed, and the grooves other than the teeth are filled with an epoxy resin or the like as a non-magnetic material.

The lower part of the right mover 19a is shown in FIG.
As shown in FIG. 5, an arm portion 23a (first support) including a sewing needle 21a for creating a pattern on the work cloth 5 and a thread spool 22a around which an upper thread is wound is provided. Reference numeral 21a is configured to be capable of reciprocating in the direction of arrow A in FIG. 2 by an upper shaft motor (not shown) provided on the arm 23a.

A bed 29a (second support) having a shuttle 30a and a bobbin 31a wound with a lower thread is provided below the left movable element 19a.
The lower shaft motor (not shown) provided in the bed portion 29a is configured to be rotatable in the direction of arrow B in FIG.

On the other hand, the top plate 15 is also provided on the upper surface of the base 11.
A planar linear motor 3 having the same configuration and function as the planar linear motor 3 provided in the first embodiment is provided.
The planar linear motor 3 is also magnetically coupled to a plate-like platen 17b as a stator, and an upper portion of the platen 17b.
It is constituted by a plurality of movers 19b that can move freely in a three-dimensional manner. As shown in FIG. 2, an arm 23b provided with a sewing needle 21b for creating a pattern on the work cloth 5 and a thread spool 22b wound with a needle thread thereon, as shown in FIG. (First support) is provided, and the sewing machine needle 21b is configured to be capable of reciprocating in the direction of arrow A in FIG. 2 by an upper shaft motor (not shown) provided on the arm 23b.

A bed 29b (second support) having a shuttle 30b and a bobbin 31b wound with a bobbin thread is provided above the right movable element 19b.
The lower shaft motor (not shown) provided on the bed portion 29b is capable of rotating in the direction of arrow B in FIG.

The platen 17a and the platen 1
A holding frame 7 for holding the work cloth 5 in a stretched state is fixedly disposed in a horizontal state between the work frame 7b and the holding frame 7b.

Next, each of the planar linear motors 3 on which the arm portions 23a and 23b and the bed portions 29a and 29b
In order to drive and perform a predetermined amount of movement and positioning,
A control circuit 10 is connected to the planar linear motor 3 by wiring (not shown), and by outputting a pulse signal therefrom, these can be independently driven. However,
A planar linear motor 3 on which a pair of arm portions 23a is mounted,
And the planar linear motor 3 on which the bed portion 29b is mounted, the planar linear motor 3 on which the paired arm portions 23b are mounted, and the planar linear motor 3 on which the bed portion 29a is mounted.
Are driven synchronously to form stitches, respectively. The pulse signal output from the control circuit 10 to the planar linear motor 3 is determined based on signals from the editing device 50 connected to the control circuit 10 and further from the storage device 12. The storage device 12 stores, as coordinate information, the relative positions of the sewing machine needle 21 and the work cloth 5 in a plane in all the steps of creating a pattern on the work cloth 5.

The pattern forming apparatus 1 includes a sewing needle 2
The control circuit 10 sends a predetermined pulse signal to each planar linear motor 3 in accordance with an output signal from the storage device 12 while synchronizing the reciprocating operation of 1a, b and the rotation of the shuttles 30a, 30b. A predetermined pattern is formed on the work cloth 5 by synchronizing the daughters 19a and 19b and driving them in a plane. Note that the control circuit 10 functions as control means.

Next, the operation of the pattern forming apparatus 1 configured as described above will be described with reference to the flowchart of FIG.

The control circuit 10 reads data from the storage device 12 in step 1 (hereinafter, also referred to as S1), and in S2, the control circuit 10
The first arm 23a and the bed 29b on the right side in FIG. 1 are driven to initialize the color of the upper thread, the sewing start position and the like based on the sewing data. In S3, the control circuit 10 controls the right first arm 23a and the bed 2
A sewing operation is performed to drive 9b to form a predetermined pattern.

On the other hand, based on the data read from the storage device 12 in S4, the editing device 50 reverses the X, Y data of the pattern back and forth and left and right.
Drives the first arm 23b and the bed 29a on the left side in FIG. 1 and performs initial setting of the color of the upper thread, the sewing start position, and the like based on the reversed sewing data. S
In 6, the control circuit 10 controls the left first arm 2
The sewing operation is performed to form a predetermined pattern by driving the bed 3b and the bed 29a.

The sewing in steps S3 and S6 is performed at the same time. As shown in FIG. 5, the X and Y data of the pattern are reversed in the front, rear, left and right directions, and the patterns are driven synchronously in front, rear, left and right symmetric positions. Therefore, the two pairs of planar linear motors 3 always move in the opposite direction with respect to the other. At that time, the reaction forces generated by the acceleration and transmitted to the frame cancel each other, and the vibration in the front-rear and left-right directions can be considerably reduced.

In the sewing of S3 and S6, the arm 23a is located on the upper side with respect to the work cloth 5, and the arm 23 is located on the left with respect to the work cloth 5.
b is arranged at the bottom and is turned upside down, and the upper shaft motor and the lower shaft motor (not shown) are driven in synchronization with each other. Vertical vibration can be considerably reduced.

As described above in detail, according to the pattern forming apparatus of this embodiment, two pairs of planar linear motors are driven synchronously at symmetrical positions in the front-rear and left-right directions. be able to. In addition, the two pairs of sewing mechanisms are arranged upside down, so that the vibration caused by the rotation of the upper shaft motor and the lower shaft motor, particularly the vertical vibration generated when the sewing machine needle moves up and down can be considerably reduced. It is possible to provide a pattern creation device with a small number.

The present invention is not limited to the embodiments described in detail above, and various modifications can be made without departing from the spirit of the present invention.

For example, in the present embodiment, the plane linear motor 3 is used as means for synchronously driving the arms 23a and 23b and the beds 29a and 29b.
As long as the 3a and b and the bed portions 29a and 29b can be driven synchronously, a combination of a single-axis linear motor may be used for driving in the X-axis and Y-axis directions.

Further, in the pattern creating apparatus 1 of the present embodiment, a description has been given of a case where the sewing machine having the lock stitch expression is embodied in the arm portions 23a, b and the bed portions 29a, b. Chain stitching, furthermore, a marker etc. may be mounted and controlled equally.
Further, the present invention can be applied to other textile machines, for example, a printing apparatus for coloring a pattern on a work cloth.

[0039]

As is apparent from the above description, according to the pattern forming apparatus for a textile machine according to the first aspect of the present invention, each pair of the first support and the second support is made of a work cloth. Since the movement is controlled so as to be symmetric in the plane direction, the vibration in the plane direction generated by the movement can be sufficiently reduced.

According to the second aspect of the present invention, the first support and the second support corresponding to each other in a pair are replaced with the first support and the second support corresponding to another pair. With respect to the support, the pattern is formed in the opposite positional relationship with the work cloth therebetween, and the pattern created by the corresponding pair of the first support and the second support and the other corresponding first support and the second Since the pattern created by the pair of two supports is created in the opposite arrangement relationship, the vibration generated from each pair along with the pattern creation, particularly in the direction orthogonal to the plane direction of the work cloth. Vibrations can be sufficiently reduced by causing interference to cancel each other.

According to a third aspect of the present invention, there is provided a pattern forming apparatus for a textile machine, wherein each of the pairs of the first support and the second support arranged in a mutually opposite positional relationship with the work cloth interposed therebetween. Since it is configured to move symmetrically in the plane direction of the work cloth, it is possible to sufficiently reduce the vibration in the direction orthogonal to the plane direction of the work cloth, and also to reduce the vibration in the plane direction of the work cloth. It can be reduced sufficiently.

According to a fourth aspect of the present invention, there is provided a pattern forming apparatus for a textile machine, wherein the driving unit moves the first support and the second support along the surface of the work cloth. Since it is constituted by a motor, the driving means can be made simpler and more compact.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an apparatus according to an embodiment.

FIG. 2 is a front view of an arm and a bed according to the embodiment.

FIG. 3 is a flowchart for explaining the operation of the pattern creation device.

FIG. 4 is a block diagram for explaining the operation of the pattern creating device.

FIG. 5 is an example of pattern data created by the pattern creation device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pattern creation apparatus 3 Planar linear motor 5 Work cloth 10 Control circuit 17a, 17b Platen 19a, 19b Mover 23a, 23b Arm part 29a, 29b Bed part

Claims (4)

[Claims] A plurality of first cloths provided on one surface side of a work cloth;
A support, and a plurality of second supports provided on the other surface side of the work cloth so as to respectively correspond to the plurality of first supports,
Driving means for moving a corresponding pair of the first support and the second support in the surface direction of the work cloth;
Each pair of the support and the plurality of second supports is moved in the plane direction of the work cloth for each pair, and a pattern is formed on the work cloth by the cooperation of the first support and the second support. A corresponding pair of the first support and the second support and another corresponding pair of the first support and the second support are arranged in the plane direction of the work cloth. A pattern forming apparatus for a textile machine, comprising: a control unit that controls the driving unit so as to move symmetrically. 2. A method according to claim 1, wherein a plurality of first cloths provided on one surface of the work cloth.
A support, and a plurality of second supports provided on the other surface side of the work cloth so as to respectively correspond to the plurality of first supports,
Driving means for moving a corresponding pair of the first support and the second support in the surface direction of the work cloth;
Each pair of the support and the plurality of second supports is moved in the plane direction of the work cloth for each pair, and a pattern is formed on the work cloth by the cooperation of the first support and the second support. In the pattern forming apparatus for a textile machine, the first support and the second support corresponding to each other in a pair are sandwiched by the work cloth with respect to the first support and the second support in another pair. A pattern creating device for a textile machine, wherein the pattern creating device is arranged in a reverse positional relationship. 3. The driving device such that each pair of the first support and the second support arranged in opposite positions with respect to the work cloth is symmetrically moved in a plane direction of the work cloth. 3. The apparatus according to claim 2, further comprising control means for controlling the means. 4. The apparatus according to claim 1, wherein said driving means comprises a planar linear motor for moving said first support and said second support along a surface of a work cloth.
The pattern creating device for a textile machine according to any one of claims 1 to 3.