JPH06158511A - Movable frame feeder of embroidery machine - Google Patents

Abstract

PURPOSE:To enlarge the embroidery range of tubular processed fabric without increasing the size of an apparatus in a movable frame feeder of a multi-head type embroidery sewing machine. CONSTITUTION:A Y-axis carriage 45 is equipped with a carriage body for movably supporting a movable frame 11 and a linear guide block 75, fixed to the lower end of the carriage body, moved with a Y-axis moving mechanism and simultaneously slidably engaged with a guide rail 73. The Y-axis carriage is further linearly moved and guided through the guide rail 73 in the Y-axis direction with the Y-axis moving mechanism and a Y-axis guiding mechanism 48. The top surface of a cover 80 covering the Y-axis moving mechanism and the Y-axis guiding mechanism 48 is separated from an embroidery frame 9 attached to the movable frame 11 in the height direction thereof by the distance of the Y-axis carriage 45. When embroidery is carried out in tubular processed fabric (W) held in the embroidery frame 9, a part of the processed fabric (W) on the under side of the embroidery frame 9 is capable of sufficiently admitting into a gap between the embroidery frame 9 and the cover 80. Thereby, the travel of the embroidery frame 9 can be enlarged by the distance in the X-axis direction to be admittable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable frame feeding device for an embroidery machine, and more particularly to a device for expanding a moving range of an embroidery frame holding a tubular work cloth in the X-axis direction (horizontal direction). It is a thing.

[0002]

2. Description of the Related Art Conventionally, a plurality of sewing machine arm portions are provided for simultaneously embroidering a plurality of flat or tubular work cloths, and a movable frame having a plurality of embroidery frames for holding these work cloths mounted on an X-axis. Direction (left-right direction) and Y-axis direction (front-back direction)
A multi-head embroidery machine provided with a movable frame feeding device that is driven to move is also put to practical use. For example, in the conventional multi-head embroidery machine shown in FIG. 7, a rectangular frame-shaped movable frame 102 having a plurality of embroidery frames 100 holding a tubular work cloth mounted thereon is movably mounted on a support table 101. A movable frame feeding device for moving the movable frame 102 in the X-axis direction and the Y-axis direction is provided.

In this movable frame feeding device, as shown in FIG. 7, an X-axis moving mechanism 103 for moving the movable frame 102 in the X-axis direction and a Y-axis moving mechanism 104 for moving the movable frame 102 in the Y-axis direction. And are provided. The X-axis moving mechanism 103 includes an X-axis drive motor 105 and a timing belt 106 driven by the X-axis drive motor 105.
The X-axis carriage 107 connected to the timing belt 106 and the X-axis carriage 10 so as to engage with the guide groove 108 formed in the Y-axis frame portion of the movable frame 102.
A guide roller 109 pivotally attached to the upper surface of the roller 7 is provided. Further, the Y-axis moving mechanism 104 includes a Y-axis drive motor 110, a timing belt 111 driven by the Y-axis drive motor 110, and the timing belt 11
1 and the Y-axis carriage 112 and the movable frame 102
Guide roller 1 pivotally mounted on the upper surface of the Y-axis carriage 112 so as to engage with the guide groove 113 formed in the X-axis frame portion of the
And 15 are provided.

Since the X-axis moving mechanism 103 and the Y-axis moving mechanism 104 have substantially the same structure, the structure of the Y-axis moving mechanism 104 will be described with reference to FIG. A moving mechanism main body 122 oriented in the Y-axis direction is fixed to the frame 121 below the support table 101, and pulleys 123.1 are provided at the front and rear ends of the moving mechanism main body 122.
24 is rotatably supported, and the pair of pulleys 123.
A timing belt 111 is hung between 124, and a Y-axis carriage 112 is connected in the middle of the timing belt 111. The Y-axis carriage 112 is linearly guided in the Y-axis direction by a Y-axis guide mechanism 126. It

Explaining the Y-axis guide mechanism 126, a pair of guide rails 127 and 128 are fixed to the upper end of the moving mechanism body 122 with a plurality of bolts 131.
A slide member 130 is movably supported between the guide rails 127 and 128, and the slide member 13 is
No. 0 is attached to the lower side of the Y-axis carriage 112 with screws 129. Further, as shown in FIGS. 7 and 8, the X-axis moving mechanism 103 and the X-axis guiding mechanism are covered with a plate-shaped cover 132, and the Y-axis moving mechanism 104 and the Y-axis guiding mechanism 126 are plate-shaped covers 133. Is covered with. However,
Guide rollers 109, 115 for supporting the movable frame 102
Are inserted through the slits 132a and 133a formed in the corresponding covers 132 and 133, and are projected upward. Therefore, since the covers 132 and 133 are provided immediately above the X-axis carriage 107 and the Y-axis carriage 112, they are located immediately below the movable frame 102. That is, the embroidery frame 10 mounted on the movable frame 102.
0 and these covers 132 and 133 are in a very close positional relationship in the height direction.

[0006]

However, in the movable frame feeding device of the conventional embroidery machine, the Y-axis moving mechanism 104 and the Y-axis guide mechanism 126 are covered with the plate-shaped cover 133, and the embroidery frame 100 and the embroidery frame 100 are provided. Since it is in a very close positional relationship with the cover 133, when the work table 114 is lowered by a predetermined distance, the tubular work cloth is held on the embroidery frame 100, and when the tubular work cloth is embroidered, Embroidery frame 10
When the rightmost end or the leftmost end of 0 is embroidered, the lower work cloth portion of the embroidery frame 100 cannot ride on the upper side of the cover 133, and therefore the tubular work cloth moves in the X-axis direction. The range is smaller than the range of movement of the flat work cloth, and as a result, the embroidery range of the cylindrical work cloth is narrowed. Therefore, in order to expand the embroidery range of the tubular work cloth, both Y-axis moving mechanisms 104 and Y-axis guide mechanisms 12 are provided.
It is conceivable to increase the interval of 6, but there is a problem that the embroidery machine becomes laterally large by that amount.

The present invention has been made to solve the above problems, and an object of the present invention is to move an embroidery machine so that the embroidery range of a tubular work cloth can be expanded without increasing the size of the embroidery machine. A frame feeding device is provided.

[0008]

In order to achieve the above object, a movable frame feeding device of an embroidery machine according to a first aspect of the present invention has a rectangular frame shape to which an embroidery frame for holding a flat or tubular work cloth is mounted. An X-axis moving mechanism including an X-axis carriage that moves the movable frame in the X-axis direction, and a Y-axis moving mechanism including a Y-axis carriage that moves the movable frame in the Y-axis direction parallel to the length direction of the cylinder bed, An X-axis guide mechanism that linearly guides the X-axis carriage of the X-axis moving mechanism in the X-axis direction via the guide rail, and a Y-axis carriage of the Y-axis moving mechanism linearly in the Y-axis direction via the guide rail. A Y-axis guide mechanism for guiding the Y-axis carriage is further provided. The Y-axis carriage is fixed to a lower end portion of the carriage main body for movably supporting the movable frame, and is movably driven by the Y-axis moving mechanism.
A linear guide block slidably engaged with the guide rail, and a cover arranged so that its upper surface is located below the carriage body to cover the Y-axis moving mechanism and the Y-axis guiding mechanism. It is a thing.

[0009]

In the movable frame feeding device for the embroidery machine according to the first aspect of the present invention, the Y-axis carriage has a carriage body for movably supporting the movable frame, and a Y-axis carriage fixed to the lower end portion of the carriage body. Since the linear guide block is slidably engaged with the guide rail while being driven by the axial movement mechanism, the Y-axis carriage is driven by the Y-axis movement mechanism and the Y-axis guide mechanism. The X-axis carriage is linearly moved and guided in the Y-axis direction by the drive of the X-axis movement mechanism and the X-axis guide mechanism by the X-axis movement mechanism. The frame moves on the XY plane composed of both XY axes by the movement of the X-axis carriage and the Y-axis carriage. Here, the cover for covering the Y-axis moving mechanism and the Y-axis guide mechanism is arranged so that the upper surface thereof is located below the carriage body. For example, since a distance (for example, 1 to 2 cm) corresponding to the height of the Y-axis carriage is provided in the height direction between the upper surface of the cover and the embroidery frame mounted on the movable frame, When embroidery is applied to the tubular work cloth held in the embroidery frame, the work cloth portion below the embroidery frame can sufficiently enter between the embroidery frame and the cover, and the distance in the X direction allows this entry. Only the X-direction movement distance of the embroidery frame is expanded, and as a result, the embroidery range of the tubular work cloth can be expanded. Moreover, the embroidery machine does not become large. However, since the embroidery frame is generally provided in front of the Y-axis carriage, the embroidery frame and Y
There is no collision with the axis carriage.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is a case where the present invention is applied to a movable frame feeding device of a multi-head embroidery machine provided with three embroidery sewing machines. The multi-head embroidery machine 1 of the present embodiment, as shown in FIG.
Three embroidery sewing machines 3 are arranged side by side at the rear of the upper surface of the horizontally long base frame 2, and a needle bar case 6 having a large number of needle bars 5 is attached to the tip of an arm section 4 of the embroidery sewing machine 3. ing. Further, a table 7 which is switchable between an upper position and a lower position according to the shape of the work cloth to be embroidered is arranged on the front portion of the upper surface of the base frame 2. The cylinder bed 10 protruding forward from the sewing machine main body of the embroidery sewing machine 3 has its upper surface arranged at the same height as the upper surface of the table 7.

A movable frame 11 having a rectangular frame shape for mounting an embroidery frame 9 and a hat frame (not shown) is placed on the upper surface of the table 7, and is moved in the X-axis direction by a movable frame feeding device 8 described later. Cylinder bed 1 is orthogonal to (left-right direction) and this X-axis direction.
It is driven to move in the Y-axis direction parallel to the length direction of 0. Further, power is transmitted to each embroidery sewing machine 3 from one sewing machine motor (not shown) installed on the base frame 2 via a drive belt 16. And, although illustration is omitted,
A needle bar case moving mechanism for horizontally moving the desired needle bar 5 of the needle bar case 6 to a position directly above the needle drop hole of the cylinder bed 10 of the embroidery sewing machine 3 is provided. The movable frame feeding device 8 including the needle bar case moving mechanism, the X-axis moving mechanism 13, and the Y-axis moving mechanism 14 is drive-controlled by a command from an operation panel 18 provided on the base frame 2. Further, 12 is provided on the upper side of the arm portion 4 of the embroidery sewing machine 3.
Twelve conical bobbins 19 are provided upright corresponding to each needle bar 5.

As shown in FIG. 2, the movable frame 11 has a movable frame body 22 in which an attachment frame 21 for the embroidery frame 9 is fixed.
And the drive frame portions 23 on the left and right sides of the movable frame body 22,
24 are attached respectively. The movable frame main body 22 and both drive frame portions 23 and 24 have a U-shaped cross-section in a cross section, and a linear shape extending from the drive frame portion 23 through the movable frame main body 22 to the drive frame portion 24 inside thereof. Roller guide groove 25
Are formed. Further, the drive frame portion 23 is provided with a roller guide groove 26 which is orthogonal to the roller guide groove 25.

Next, the X-axis moving mechanism 1 of the movable frame feeding device 8
An outline of 3 will be described with reference to FIG. 2. An X-axis drive motor 30 including a stepping motor is installed at the right end portion of the base frame 2.
A pair of timing pulleys 31, 3 by driving force from 0
The timing belt 33 is driven via the drive shaft 2, and the X-axis carriage 34 is connected to the timing belt 33. On the upper surface of the X-axis carriage 34, a guide roller 35 that engages with the roller guide groove 26 of the drive frame portion 23,
36 is rotatably supported, and the X-axis carriage 34 is linearly guided in the X-axis direction by an X-axis guide mechanism 37.

On the other hand, the Y-axis moving mechanism 1 of the movable frame feeding device 8
2 will be described with reference to FIG. 2. The Y-axis moving mechanism 14 is provided on each of the left and right sides of the base frame 2, and is a Y-axis composed of a stepping motor provided on the upper surface of the rear center of the base frame 2. It is configured to be driven by the drive motor 40. The pair of Y-axis moving mechanisms 14 have the same structure, and the rotational driving force transmitted from the Y-axis drive motor 40 via the transmission shaft 41 causes the timing belt 44 to pass through the pair of timing pulleys 42 and 43. Is driven, and a Y-axis carriage 45 is connected to the timing belt 44. Guide rollers 46 and 47 that engage with the roller guide groove 25 are rotatably supported on the upper surface of the Y-axis carriage 45.
The shaft carriage 45 is linearly guided in the Y-axis direction by the Y-axis guide mechanism 48.

By the way, since the X-axis moving mechanism 13 and the Y-axis moving mechanism 14 have substantially the same structure, the details of the Y-axis moving mechanism 14 provided on the left side will be described with reference to FIGS. . As shown in FIGS. 2 and 3, a moving mechanism main body 51 fixed to the base frame 2 with bolts 50.
Pulley supporting members 52 and 53, which are substantially U-shaped in plan view, are attached to both ends in the Y-axis direction of the pulley supporting member 5, respectively.
The timing pulleys 42 and 43 are rotatably supported by 2 and 53, respectively. Front pulley support member 52
Is attached to the movement mechanism main body 51 so as to be movable and fixed in the Y-axis direction by a screw 55 and an elongated hole 56 so that the position can be adjusted. The front surface of the pulley support member 52 is for applying tension to the timing belt 44. The tension adjusting bolt 57 is screwed, and the head of the bolt 57 penetrates the front end vertical portion 58 of the moving mechanism main body 51 and projects to the front side. On the other hand, the rear pulley support member 53 is attached to the moving mechanism main body 51 with screws 5.
The pulley shaft 43a of the timing pulley 43 fixed by 9 and supported by the pulley support member 53 penetrates the pulley support member 53 and is connected to the transmission shaft 41.

The Y-axis carriage 45 is shown in FIGS.
As shown in FIG. 3, a carriage main body 61 that movably supports the movable frame 11 and a linear guide block 75 that is fixed to the lower end of the carriage main body 61 and slidably engages with a guide rail 73 described later. Has been done. The linear guide block 75 includes a carriage body 61.
A connecting member 60 disposed at a lower position than the timing belt 44 is attached to the connecting member 60 at an intermediate portion above the timing belt 44, as shown in FIG.
A connecting plate 64 is abutted from the inner tooth side of the belt, and the belt 44 is sandwiched by the connecting plate 64 and the connecting member 60, and these are integrally fixed by screws 64a. As shown in FIGS. 3 and 4, the guide roller support portion 62 formed to extend forward from the carriage body 61 has the same height as the carriage body 61 and is formed to be long in the X-axis direction. A pair of guide rollers 46 and 47 are rotatably supported by the respective parts. Each pair of these guide rollers 4
As shown in FIG. 3, 6 and 47 are arranged in the X-axis direction and shifted in the Y-axis direction to move the movable frame 11 in the Y-axis direction while engaging with the guide groove 25. To do.

Next, the Y-axis guide mechanism 48 will be described with reference to FIG. 4. The moving mechanism main body 51 extends in the Y-axis direction in parallel with the timing belt 44.
A book guide rail 73 is fixed with screws 72, and a guide block 75 fixed to the lower end of the Y-axis carriage 45 with a bolt 72 is slidably engaged with the guide rail 73 from above.

Next, as shown in FIGS. 3 and 4, the cover 80 has a substantially inverted U-shaped cross section, is disposed so as to cover the Y-axis moving mechanism 14 and the Y-axis guide mechanism 48, and has its lower end. Part is attached to the base frame 2. The upper surface of the cover 80 is located below the carriage body 61, while the cover 80 is formed with an opening 80a for allowing the carriage body 61 to project upward. That is, the upper surface of the cover 80 and the embroidery frame 9 mounted on the movable frame 11 are provided with a distance corresponding to the height of the Y-axis carriage 45 in the height direction. Although not shown, the right Y-axis moving mechanism 14 and the Y-axis guide mechanism 48 are also covered with the cover 80 and the X-axis moving mechanism 13 is also provided.
Similarly, the X-axis guide mechanism 37 is also covered with a cover.

Next, an embroidery operation for embroidering a tubular work cloth W such as a T-shirt held in the embroidery frame 9 in the multi-head embroidery machine 1 configured as described above will be described. First, the table 7 is lowered by a predetermined distance, and the embroidery frame 9 holds the tubular work cloth W. When a pattern is selected on the operation panel 18, the X-axis drive motor 30 and the Y-axis drive motor 40 are independently driven based on the embroidery data of the selected embroidery pattern by a signal from an embroidery control device (not shown). Driven. The timing belt 33 is driven through the pair of timing pulleys 31 and 32 by the driving of the X-axis drive motor 30, and the X-axis carriage 34 connected to the timing belt 33 is driven in the X-axis direction at the same time. , The guide rollers 35, 36 of the X-axis carriage 34
The movable frame 11 is driven to move in the X-axis direction through engagement between the roller guide groove 26 and the X-axis guide mechanism 37.

On the other hand, by driving the Y-axis drive motor 40,
A timing belt 44 is driven through a pair of timing pulleys 42 and 43, and a Y-axis carriage 45 connected to the timing belt 44 is driven in the Y-axis direction, and at the same time, a guide roller for the Y-axis carriage 45. 46,
Engagement of 47 with roller guide groove 25 and Y-axis guide mechanism 48
The movable frame 11 is driven to move in the Y-axis direction via. As a result, the embroidery frame 9 mounted on the movable frame 11 is also moved in the X-axis direction and the Y-axis direction at the same time, so that the embroidery pattern is sequentially formed on the tubular work cloth W held by the embroidery frame 9.

When the rightmost end of the embroidery area of the embroidery frame 9 is to be embroidered, as shown in FIGS. 5 and 6, as the movable frame 11 moves to the left, the tubular work cloth W is moved. Also moves to the left with the embroidery frame 9. Here, in the case of holding the tubular work cloth W in the embroidery frame 9, FIG.
As shown in, the work cloth portion exists below the embroidery frame 9. However, as described above, since the upper surface of the cover 80 and the embroidery frame 9 mounted on the movable frame 11 are provided with a distance corresponding to the height of the Y-axis carriage 45 in the height direction, This lower work cloth portion can sufficiently enter between the embroidery frame 9 and the cover 80, and the Y-direction moving distance of the embroidery frame 9 is expanded by the Y-direction distance that allows the embroidery frame 9 and the cover 80 to be inserted. The embroidery range of the textured cloth W can be expanded. Moreover, the multi-head embroidery machine 1 does not become large. However, the embroidery frame 9 is the Y-axis carriage 4
Since it is provided in front of 5, the embroidery frame 9 does not collide with the Y-axis carriage 45.

The Y-axis moving mechanism 14 and the Y-axis guiding mechanism 48
The above is merely an example, and various moving mechanisms and guide mechanisms in which various members are combined may be used. It is needless to say that the present invention can be applied to a movable frame feeding device of various embroidery machines, such as a single-head embroidery machine having one arm and a multi-head embroidery machine having four or more arms. is there.

[0023]

As described above in detail, according to the movable frame feeding device of the embroidery machine of the first aspect, the Y-axis carriage is composed of the carriage body and the linear guide block fixed to the lower end portion of the carriage body. On the other hand, the cover for covering the Y-axis moving mechanism and the Y-axis guide mechanism is arranged so that its upper surface is located below the carriage body. Between the cover and the cover, and the X of the embroidery frame is the distance
The directional movement distance is expanded, and as a result, the embroidery range of the tubular work cloth can be expanded. Moreover, the embroidery machine does not become large.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a multi-head embroidery machine.

FIG. 2 is a schematic plan view of a multi-head embroidery machine.

FIG. 3 is an enlarged plan view showing a main part of a Y-axis moving mechanism.

4 is a vertical cross-sectional view taken along the line AA of FIG.

5 is a view corresponding to FIG. 2 when the movable frame moves to the left.

6 is a vertical cross-sectional view taken along the line BB of FIG.

FIG. 7 is an exploded perspective view showing a movable frame and a movable frame feed mechanism according to a conventional technique.

FIG. 8 is an exploded enlarged perspective view of a Y-axis moving mechanism according to a conventional technique.

[Explanation of symbols]

 1 Multi-head embroidery machine 3 Embroidery sewing machine 8 Movable frame feeder 9 Embroidery frame 11 Movable frame 13 X-axis moving mechanism 14 Y-axis moving mechanism 34 X-axis carriage 37 X-axis guiding mechanism 45 Y-axis carriage 48 Y-axis guiding mechanism 61 Carriage body 73 Guide rail 75 Linear guide block 80 Cover

Claims (1)

[Claims] 1. An X-axis moving mechanism including an X-axis carriage for moving a rectangular frame-shaped movable frame having an embroidery frame for holding a flat or tubular work cloth in the X-axis direction, and the movable frame as a cylinder. A Y-axis moving mechanism including a Y-axis carriage that moves in the Y-axis direction parallel to the bed length direction, and an X that linearly guides the X-axis carriage of the X-axis moving mechanism in the X-axis direction via a guide rail. A movable frame feeding device for an embroidery machine comprising an axis guide mechanism and a Y-axis guide mechanism that linearly guides the Y-axis carriage of the Y-axis moving mechanism in the Y-axis direction via guide rails. Is a carriage main body that movably supports the movable frame, and a linear guide that is fixed to the lower end of the carriage main body, is driven to move by the Y-axis moving mechanism, and is slidably engaged with the guide rail. A movable embroidery machine, further comprising a cover having a lock and a top surface located below the carriage body to cover the Y-axis movement mechanism and the Y-axis guide mechanism. Frame feeding device.