JPH11300069A - Automatic mark-sewing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a mark possible to be sewn on at the same time in a sewing process by a providing, when a fabric is sewn by a sewing machine having a bed where the fabric is mounted and moved, and a presser metal which presses the fabric on the bed at a sewing location, a mark feeding device which automatically feeds the mark to the sewing location. SOLUTION: When a folded back part of the hem of a fabric 2 such as a T-shirt is sewn by a sewing machine 1, a mark feeding device 8 is provided to the sewing machine 1 so that a mark 9 may be simultaneously sewn, and a robot device 10 which automatically feeds the mark 9 to the mark feeding device 8 is provided. In addition, a mark manufacturing device 12 which cuts the mark 9 of a specified length from a tape-form fabric 11 and feeds the mark 9 to the robot device 10 is provided. The mark feeding device 8 is equipped with a pressing means which presses the mark 9 mounted on a mark mounting location on the bed 3, and a moving means which moves the mark 9 being pressed to a location under a presser metal 5 by moving the pressing means in the sewing direction of the fabric 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic mark sewing apparatus for sewing marks such as a trademark and a washing sign when sewing a T-shirt or the like.

[0002]

2. Description of the Related Art There is no technique for simultaneously sewing a mark on the back of a fabric in a fabric sewing process of various sewing machines such as a flat stitch sewing machine. Conventionally, the marks have been sewn by retrofitting.

[0003]

Conventionally, the marks are sewn by retrofitting separately from the sewing process, so that the number of man-hours is increased and the cost is increased. Therefore, the present invention
It is an object of the present invention to provide an automatic mark sewing device that can sew marks simultaneously in a sewing process.

[0004]

In order to achieve the above object, the present invention takes the following measures. That is, the automatic mark sewing apparatus of the present invention, a bed for placing and moving the fabric,
When sewing the fabric with a sewing machine having a presser foot that presses the fabric on the bed at the sewing position, a mark supply device that automatically supplies the mark to the sewing position is provided to simultaneously sew the mark. .

[0005] The mark supply device includes a pressing means for pressing the mark placed on the bed, and moving the pressing means in a sewing direction of the cloth so that the pressed mark is positioned below the presser foot. It is preferable to have a first moving means for moving the first moving means. It is preferable that the mark supply device further includes a second moving unit that moves the first moving unit in a direction orthogonal to the sewing direction.

It is preferable that a robot device for automatically supplying a mark to the mark supply device is provided. Furthermore,
It is preferable to provide a mark manufacturing device that cuts a mark of a predetermined length from the tape-like material and supplies the cut mark to the robot device.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. A sewing machine 1 shown in FIG. 1 is a flat stitch sewing machine used for laying down a hem of a fabric 2 such as a T-shirt. 4, a presser 5 provided at the distal end of the arm 4, which presses the cloth 1 on the bed 3 in a detachable manner, and the bed 3 to move the cloth 2 at the position of the presser 5. And a sewing unit (not shown) having a needle or the like that moves up and down at the position of the presser foot 5.

The sewing machine 1 is provided with a mark supply device 8. The mark supply device 8 is configured to be able to simultaneously sew the mark 9 when sewing the folded portion of the hem of the cloth 2 such as a T-shirt with the sewing machine 1. It is preferable that a robot device 10 for automatically supplying the mark 9 to the mark supply device 8 is provided. Further, it is preferable to provide a mark manufacturing device 12 for cutting a mark 9 having a predetermined length from the tape-like material 11 and supplying the mark 9 to the robot device 10.

The mark manufacturing apparatus 12 has a reel 13 on which a tape-like material 11 on which a trademark, a washing mark or the like is printed is wound in a roll shape, and the tape-like material 11 fed from the reel 13 is longitudinally wound. It has a guide cylinder 14 provided with a transfer device (not shown) for transferring in the direction. The guide tube 14 is arranged vertically on the back side of the arm 4 of the sewing machine 1, and the guide tube 14 is provided with a sensor 15 for detecting the position or the feed amount of the tape-shaped material 11. The feed amount of the tape-like material 11 is controlled by the sensor 15. A cutting device 16 for cutting the tape-like material 11 fed by a predetermined length is provided below the sensor 15 in the guide tube 14. Further, the guide tube 14 is provided with the folding device 1 below the cutting device 16.
The folding device 17 folds the cut piece of the tape-shaped cloth 11 cut into the predetermined length into two. The cut pieces cut into two are used as marks 9.

[0010] As shown in FIG.
The second folding device 17 has an extruded piece 18, and the extruded piece 18 is extruded in the direction of the arrow in FIG. Protrude. As shown in FIGS. 2 to 4, the robot device 10 includes a nip device 20 including a pair of openable and closable fingers 19 for detachably holding the mark 9 folded by the folding device 17, and a nip device 2.
0, a first rotor 22 for rotating the first rotor 22 around a first axis 21;
A second rotor 24 for rotating the first rotor 22 about a second axis 23 orthogonal to the first axis 21;
And a third rotor 26 for rotating the second rotor 24 about a third axis 25 orthogonal to the second axes 21 and 23. The third rotor 26 is fixed to the bed 3 of the sewing machine 1 on the opposite side of the mark manufacturing apparatus 12 via the arm 4, and the third axis 25 is a vertical axis.

The nip device 20 preferably has a built-in air cylinder for opening and closing a pair of fingers 19 provided at the distal end thereof. First to third rotors 22, 24, 2
6 is preferably constituted by a rotary cylinder driven by air or the like. Then, the first to third rotors 22,
24, 26 correspond to the first to third shaft centers 21, 22, respectively.
3, 25.

The nip device 20 is rotated by 90 degrees around a third axis 25 by a third rotor 26 in a first position (position indicated by a solid line in FIGS. 1 to 3) for receiving the mark 9 from the folding device 17. The second posture (the posture indicated by the phantom lines in FIGS. 1, 2, and 4) and the third posture rotated downward by the angle α around the second axis 23 by the second rotor 24 (the dotted line and the diagram in FIG. 1). 4 (position indicated by a solid line in FIG. 4). In the third position, the nip device 20 opens the finger 19 to release the pinching of the mark 9 and
To the mark placement position 27 set on the bed 3. The nip device 20 is rotatable around a first axis 21 by a first rotor 22, so that the sandwiched mark 9 can be turned upside down.

As shown in FIGS. 1, 2, and 5, the mark supply device 8 includes a pressing means 28 for pressing the mark 9 placed on the mark mounting position 27 on the bed 3, and a pressing means 28. Moving in the sewing direction of the cloth 2 to move the pressing mark 9 to a position below the presser foot 5, and moving the first moving means 29 in a direction orthogonal to the sewing direction. Moving means 30 for moving to
Having.

The first moving means 29 preferably comprises an air cylinder 31 fixed on the bed 3 and a piston rod 32 provided on the cylinder 31 so as to be extendable and contractible. The direction in which the piston rod 32 expands and contracts is the sewing direction. The second moving means 30 preferably comprises an air cylinder 33 fixed to the piston rod 32 of the first moving means 29, a piston rod 34 provided on the cylinder 33 so as to be extendable and contractible, and the like. The direction of expansion and contraction of the piston rod 34 of the second moving means 30 is the first direction.
The direction is perpendicular to the direction in which the piston rod 32 of the moving means 29 expands and contracts.

The pressing means 28 is connected to the second moving means 3
0, an air cylinder 35 fixed to the piston rod 34,
It is preferable to comprise a piston rod 36 provided on the cylinder 35 so as to be extendable and retractable, and a pressing piece 37 fixed to the tip of the rod 36. The direction of expansion and contraction of the piston rod 36 of the pressing means 28 is the vertical direction. The pressing piece 37 is preferably formed of a spring steel plate or the like.

In the contracted state of the respective cylinders of the first and second moving devices 29 and 30, the pressing piece 37
Is provided above the mark placement position 27 set on the bed 3. Next, a description will be given of a procedure for sewing the mark 9 at the same time as sewing the folded portion of the hem of the fabric 2 such as a T-shirt, as shown in FIG.

First, in a guide tube 14 of a mark manufacturing device 12, a tape-like material 11 is cut into a predetermined length by a cutting device 16, and is folded into two by a folding device 17, and the mark 9 is guided. It is made to protrude from the cylinder 14. The protruding mark 9 is sandwiched between fingers 19 of a nip device 20 of the robot device 10. Mark 9
The first rotor 22 is turned upside down by rotation. next,
The nip device 20 holding the mark 9 is connected to the third rotor 26
As a result, it turns 90 degrees in the horizontal direction. Then, the second rotor 24 rotates downward by the angle α. Next, the finger 19 is opened to release the mark 9. Mark 9
It is placed on the mark placement position 27 on the bed 3.

Next, the pressing piece 37 of the pressing means 28 of the mark supply device 8 moves down to press a part of the mark 9 placed at the mark placing position 27. Then, the second moving means 30 is driven to move the pressed mark 9 to the right in FIG. 1 or 2 so as to slide on the bed 3. Next, the hem portion of the cloth 2 such as a T-shirt is set at the sewing position, the presser foot 5 is lowered, and the cloth 2 is pressed. And
The sewing machine 1 is started.

After the number of hand movements reaches a predetermined number, the first moving means 29 is operated to move the pressed mark 9 to a position below the presser foot 5, and the mark 9 is clamped by the presser foot 5,
Then, the pressing of the mark 9 by the pressing piece 37 is released, and the pressing piece 37 is retracted to the original position by the first and second moving means 29 and 30. The mark 9 pressed by the presser foot 5 moves together with the moving fabric 2 and is sewn simultaneously with sewing.

FIG. 6 shows another embodiment of the present invention, which does not have a mark manufacturing device or a robot device, and has a mark mounting position 27 provided on the bed 3.
Then, the mark 9 is placed manually. The pressing means 28 of the mark supply device 8 in this embodiment comprises a rotary cylinder 38 fixed to the piston rod 34 of the second moving means 30 and a pressing piece 37 fixed to the rotation axis of the rotary cylinder 38. It is.

FIG. 7 shows another embodiment of the mark supply device 8, in which a pressing means 28 for pressing the mark 9 placed on the bed 3 and the pressing means 28 are moved in the sewing direction of the cloth. The first moving means 29 for moving the pressed mark 9 to a position below the presser foot 5
It is composed of It should be noted that the present invention is not limited to the embodiments described above, and the technical scope of the present invention is not limited to the equivalents described in the claims (the ones existing at the time of filing and future ones). Appearing).

[0022]

According to the present invention, marks can be sewn automatically.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view showing a main part of the embodiment of the present invention.

FIG. 3 is a front view of the robot device.

FIG. 4 is a side view of the robot device.

FIG. 5 is a front view of the mark supply device.

FIG. 6 is a perspective view showing another embodiment of the mark supply device.

FIG. 7 is a perspective view showing another embodiment of the mark supply device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 sewing machine 2 fabric 3 bed 5 presser foot 8 mark supply device 9 mark 10 robot device 11 tape-like fabric 12 mark manufacturing device 28 pressing means 29 first moving means 30 second moving means

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yuji Tsuge 1315 Shiojicho, Izumo-shi, Shimane Prefecture Izumo Gunze Co., Ltd.

Claims (5)

[Claims] 1. A sewing machine having a bed on which a cloth is placed and moved and a presser foot for pressing the cloth on the bed at a sewing position, the sewing being performed so as to simultaneously sew marks. Automatic mark sewing device equipped with a mark supply device that automatically supplies a mark to a position. 2. The mark supply device according to claim 1, wherein the pressing means presses the mark placed on the bed, and the pressing means moves the pressing mark in a sewing direction of the cloth, so that the pressing mark is pressed by the presser foot. 2. The automatic mark sewing device according to claim 1, further comprising: a first moving unit that moves to a lower position. 3. The mark supply device further comprises the first
3. The automatic mark sewing device according to claim 2, further comprising a second moving unit that moves the moving unit in a direction orthogonal to the sewing direction. 4. The automatic mark sewing device according to claim 1, further comprising a robot device for automatically supplying a mark to the mark supply device. 5. The automatic mark sewing apparatus according to claim 4, further comprising a mark manufacturing device for cutting a mark of a predetermined length from the tape-shaped cloth and supplying the mark to the robot device.