JPH08257273A - Cloth feed guiding device for sewing machine - Google Patents

Abstract

PURPOSE: To hold the margin for a seam part of cloth there between and to easily and surely perform the operations of finish sewing or the like by hooking one side part in a cloth feed direction in the margin for a seam part to a cloth hooking member and then pushing clown a latch member to a sewing base in the case of setting the cloth to the sewing base of a sewing machine. CONSTITUTION: This cloth feed guiding device is constituted of the cloth hooking member 10 and the latch member 11. Then, the cloth hooking member 10 is disposed at a position to be an upstream side in the cloth feed direction from a needle position to the sewing base T of the sewing machine and is formed by combining a pawl side piece part 10a and a reception bottom side piece part 10b. Also, a groove 13 whose opening part is turned to an oblique upper part is formed between the pawl tip of the pawl side piece part 10a and the reception bottom surface of the reception bottom side piece part 10b, the sewing part K of the cloth W is engaged inside the groove 13, the cloth W is extended to the hem part side and the cloth W is hooked and held. In the meantime, the latch member 11 is disposed so as to be able to stand by at the lower part of the sewing base T and descend and presses the cloth W a neck tape (r)} to the upper part of the sewing base T at the time of descending.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth feeding guide device for a sewing machine.

[0002]

2. Description of the Related Art To sew clothing such as T-shirts, an overlock in which a neck tape r (having stretchable cloth connected in a belt ring shape) is sewn to a collar S as shown in FIG. There is sewing work. In this case, the garment after the neck tape r is sewn is in a state in which the ends of the neck tape r are lifted up from the back surfaces (inner side surfaces) of the front body m and the back body n as shown in FIG. It

Generally, lower-grade clothing can be produced as it is, but in intermediate-to-high-grade clothing where appearance and comfort are important, the end of the neck tape r is at least on the back surface of the back body n. I finish sewing to hold it down. Conventionally, this finish sewing is performed while an operator holds the garment in his hand and moves the garment along the arcuate shape of the collar S with respect to the needle position of the sewing machine. As shown in FIG. 16, the sewing machine is provided with the groove forming tool G on the sewing table T upstream of the needle N in the material feeding direction (see the white arrow). The overlock seam portion between m or the rear body n and the end of the neck tape r is applied to the groove of the groove forming tool G, and is maintained so as not to come out of the groove. I used it as a guide.

[0004]

In order to perform the above-mentioned finish sewing, the seams of the finish sewing should not come off from the ends of the neck tape r, and should match the arcuate shape of the collar S so as not to meander. Advanced technology is required to achieve this. Therefore, not only a considerable skill was required, but also inefficient.

Moreover, since the worker cannot perform any other work during the finish sewing, when looking at the entire sewing operation of the clothes, a large number of workers are required,
Moreover, it had a defect that it was inefficient. The present invention has been made in view of the above circumstances, and makes it possible to easily and surely perform work in finishing sewing on a collar portion of clothing, and to enable high efficiency. It is an object of the present invention to provide a fabric feed guide device for a sewing machine that can be automated.

[0006]

In order to achieve the above object, the present invention takes the following technical means. That is, according to the present invention, there is provided a material hooking member provided upstream of the needle position in the cloth feed direction with respect to the sewing table of the sewing machine, and a detachment provided so as to be capable of being pushed down to the upper part of the sewing table in the form of being adjacent to and facing the material hooking member. It is characterized in that it has a stop member, and that the seam allowance portion of the cloth is clamped and held from left and right and up and down in the cloth feeding direction by the cloth hanging member and the slip-off preventing member.

[0007]

When a cloth such as clothes is set on the sewing table of the sewing machine, one side of the cloth feeding direction in the seam allowance is hooked on the cloth hanging member, and then the stopper member is pushed down onto the sewing table. The disengagement prevention member is positioned with respect to the cloth on the other side in the cloth feeding direction in the seam allowance portion, and is adjacently opposed to the cloth hanging member. That is, the cloth set on the sewing table is such that the seam allowance is clamped and held by the cloth hooking member and the stopper member from the left and right and the top and bottom in the cloth feeding direction.

Therefore, it is possible to sew without holding the cloth.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a sewing machine M used for finishing sewing (pressing the end portion of the neck tape) on the collar of a T-shirt. The sewing machine M includes a cloth feed guide device 1, a cloth separating device 2 and an air flow. A generator 3, a guide remover 4, a seam remover 5, and a material clamp device 6 are provided so that the steps from the finish sewing to the take-out of the T-shirt after sewing can be consistently automated.

In the following, the T-shirt is simply referred to as "cloth W", and the collar portion S is referred to as "cylindrical mouth portion". In the present embodiment, the sewing machine M has two sewing needles N 2
A needle type sewing table T having a cylinder type is used. Needless to say, with respect to the sewing machine M, the cloth W is turned upside down as shown in FIG. 2A (the front body m and the back body n shown in FIG. And set the sewn part K (the part where the backs of the front body m and the back body n and the ends of the neck tape r are sewn overlock) toward the sewing table T. .

First, the fabric feed guide device 1 will be described. The fabric feed guide device 1 is the most important part in automating the finish sewing, and literally guides the feed of the fabric W along the sewing portion K thereof.
That is, since the cloth W has a tubular shape around the sewn portion K, it guides the rotation along the tubular shape.
As shown in FIGS. 3 and 4, the fabric feed guide device 1 has a fabric hanging member 10 and a retaining member 11.

The cloth hanging member 10 is a sewing table T of the sewing machine M.
In contrast, the material feed direction is more than the needle position (see the white arrow)
Is provided on the upstream side of the claw side piece 10a.
And the receiving bottom side piece 10b.
Then, the toe of the nail side piece 10a and the receiving bottom side piece 10
A groove 13 whose opening is directed obliquely upward between the receiving bottom surface of b.
Is formed. Therefore, the cloth W can be hooked and held by engaging the sewn portion K of the cloth W into the groove 13 and extending the cloth W to the hem side (left side in FIG. 4).

Incidentally, the claw side piece 10a or the receiving bottom side piece 10
At least one of b is close to the sewing table T.
It is preferable to attach the groove 13 so that the position thereof can be adjusted in the separating direction, so that the groove width of the groove 13 can be dealt with when the material of the cloth W, the cloth thickness, the volume of the sewn portion K and the like are changed. . On the other hand, the retaining member 11 is the sewing table T
It is provided so as to stand by above and can be lowered, and is formed in a spatula shape by a thin plate material having elasticity. And
When the disengagement prevention member 11 descends, the cloth hanging member 10
With respect to the claw-side piece 10a, the claw-side piece 10a is positioned so as to be adjacent and opposed to the cloth feed direction, and the bottom-side piece 1 is provided.
The upper part of 0b is pressed down and abutted. That is, the cloth W (neck tape r) can be pressed onto the upper part of the sewing table T.

The vertical movement of the disengagement prevention member 11 is performed by a vertical movement driving tool 15 such as a fluid pressure cylinder installed on the sewing table T of the sewing machine M as shown in FIG. In addition,
The disengagement prevention member 11 can use the bending deformation of itself as an elastic force by using a metal plate or a resin plate, and can also hold a block piece or the like made of a material by a coil spring or the like and hold it in a biased state ( (Not shown).

Therefore, in the cloth feed guide device 1, the sewn portion K of the cloth W is clamped and held by the cloth hooking member 10 and the stopper member 11 from the left and right and the top and bottom in the cloth feed direction. ing. Next, the dough separating device 2 will be described. The material handling device 2 holds the material W to the sewing machine M and also smoothly assists the material feeding in the process of performing the finish sewing, as shown in FIGS. 5 and 6. It has a hanging hook portion 17 and a pulling hook portion 18.

The hanging hook portion 17 is provided on the side of the sewing machine M (on the left side in FIG. 5) and at a position higher than the working area for sewing with the needle N, and rotates about a horizontal axis. It has a freely rotatable roller portion 17a and a cloth-applying flange portion 17b held non-rotatably. The pulling hook portion 18 is provided so as to be horizontally rotatable at its projecting end portion with respect to the stay 19 attached so as to project from the sewing table T to the upstream side in the material feeding direction, and is opposite to the material contacting flange portion 18a. The taper cylinder 18b and the disc claw 18c are uniaxially connected to each other to form a drum shape.

The horizontal rotation of the pulling hook portion 18 is performed by the rotation drive tool 20 provided below the projecting end portion of the stay 19.
(See FIG. 1). A rotary cylinder, a rotary solenoid, a motor, or the like can be used for the swing drive tool 20, for example. Further, the turning range of the pulling hook portion 18 is such that when the cloth W is set on the sewing table T of the sewing machine M, the disc claw 18c is directed to the hem side of the cloth W (left side in FIG. 5). In other cases (during standby, etc.), it is preferable to set the disk claw 18c to about 180 ° so that it can be reversed in the opposite direction.

At this time, the turning direction is the disc claw 18
c is in the direction of passing near the needle position (upward in FIG. 5), and the disc claw 18c is put in and taken out from the tubular mouth portion (inside the neck tape r) of the material W set on the sewing table T. You can do it. As shown in FIG. 7, the disc claw 18c has a sharpened outer peripheral edge so as to engage with the sewn portion K of the cloth W and bend it at a steep angle. Due to the engagement, a predetermined tension is applied to the cloth W with the hanging hook portion 17, the cloth W is prevented from coming off, and the engagement position is not displaced from the sewn portion K. The reverse taper barrel 18b is engaged with the cloth W in such a manner, and the tube mouth portion (neck tape r) of the cloth W is formed.
The diameter and length are determined so as not to interfere with the engagement state and interfere with the engaged state.

In addition, in the pulling hook portion 18, none of the cloth-applying flange portion 18a, the reverse taper barrel 18b, and the disc claw 18c rotate. Due to this, in the material handling device 2, the pressing plate P of the sewing machine M is configured by the hanging hook portion 17 and the pulling hook portion 18.
(Or the cloth sweeping piece 45 of the seam removing device 5 described later) can support the cloth W at three points. In this case, when the pressing plate P of the sewing machine M is viewed as an intermediate position,
The hanging hook portion 17 is on the downstream side, and the pulling hook portion 18 is on the upstream side in the material feeding direction. Therefore, the cloth W can be rotated around the tube mouth portion, which enables the cloth feeding along the sewn portion K.

By the way, the mutual positional relationship (height, mutual spacing, etc.) between the hanging hook portion 17 and the pulling hook portion 18 can be variously changed, the dimensions (diameter, etc.) of each portion can be variously changed, or the hanging hook portion 18 can be hung. The hook portion 17 can be made non-rotatable and the pulling hook portion 18 can be made rotatable according to the material of the cloth W, the tubular size, and the like.

Next, the air flow generator 3 will be described.
The airflow generation device 3 is configured to blow compressed air in a predetermined direction to each end of the yarn fed to the needle N of the sewing machine M and the fabric W, and in this embodiment, it is shown in FIG. 7 types of nozzles with different spray targets
5 to 31 are provided.

The first nozzle 25 is provided on the side of the needle N of the sewing machine M, and is arranged inwardly (at the hem portion side) with respect to the tube mouth of the cloth W set by the cloth separating device 2. It is designed to blow compressed air.
As a result, the cloth W is directed toward the side of the sewing machine M and the sewing table T
It is made to float like a windsock so that the scratch resistance can be reduced. Further, in the cloth W, the sewing portion K
It is also possible to extend the slack and wrinkles that occur around the area toward the hem of the fabric W.

The second nozzle 26 is provided on the upper surface of the sewing table T of the sewing machine M and is compressed between the outer peripheral surface of the material W and the sewing table T toward the hem side of the material W. It is designed to blow air. This second nozzle 2
6 also has the same operation as the first nozzle 25. In addition, the sewing table T is provided with an uplift table 32 (see FIG. 1) at a leeward portion in order to enhance the above-described action of the second nozzle 26.

The third nozzle 27 is provided above the slip-off preventing member 11 in the above-mentioned cloth feeding device 1 so as to move up and down integrally with the slip-off preventing member 11, and the inner circumference of the tube mouth portion of the cloth W is described above. Compressed air is blown to the portion of the surface that is pressed by the pressing plate P of the sewing machine M. As a result, the first and second nozzles 25,
The action of 26 is further promoted so that the slack and wrinkles generated around the sewn portion K are extended toward the hem of the cloth W.

The fourth nozzle 28 is the first nozzle 2 described above.
5, the compressed air is blown to the inner peripheral surface (upstream side in the cloth feeding direction) of the cylindrical opening of the cloth W. As a result, the material W is retained in a tubular shape, and the slack generated in the sewn portion K is extended in the radial direction (direction to push back against the material feeding direction).

The fifth nozzle 29 is provided on the inclined surface 35b (see FIG. 10) of the scooping platform 35 in the guide removing device 4 which will be described later as shown in FIG. It is designed to blow air. As a result, the cloth W can be lifted from the scooping table 35 or the abrasion resistance can be reduced. The sixth nozzle 30 is provided on the sewing machine M side (right side in FIG. 8),
A large amount of compressed air is blown toward the tube mouth of the cloth W in a short time. The sixth nozzle 30 is utilized as an aid in taking out (blowing) the material W from the sewing machine M when finishing sewing is completed and the pressing plate P of the sewing machine M is lifted.

The seventh nozzle 31 is the first nozzle 2 described above.
It is provided below the needle 5 so as to face the needle N, and blows compressed air to the end of the yarn fed to the needle N. Therefore, in the seventh nozzle 31, after the fabric W is taken out, the yarns passed through the needles N are entangled with each other between the two needles N, are caught by the pressing plate P, and the lower yarn (shown in the figure). It is possible to prevent problems such as being entangled with (omitted).

Next, the guide removing device 4 will be described. The guide removing device 4 removes the material W held by the material feeding guide device 1 during or after finishing sewing the material feeding guide device 1.
It was designed to be released temporarily or ultimately from. As shown in FIGS. 9 and 10, the guide removing device 4 includes a scooping platform 35, a climbing platform 36, and a release claw 3.
7 are provided.

The scooping table 35 is provided so as to be vertically movable with respect to the sewing table T of the sewing machine M on the upstream side in the material feeding direction, and has a horizontal surface 35a which becomes substantially at the same level as the sewing table T when the table is raised. It has an inclined surface 35b connected to the upstream side with a downward slope. The up-and-down movement of the scooping platform 35 is performed by an up-and-down drive tool 39 provided at the lower part thereof. A fluid pressure cylinder, a linear solenoid, a motor-driven linear device, or the like can be used for the lifting drive tool 39.

From the above, the scooping platform 35 is
When the finish sewing is performed, the cloth feeding guide device 1 has an effect of lifting the cloth W to a height at which it can be smoothly fed. The reason why the horizontal surface 35a of the scooping table 35 can be lowered from a state where the horizontal surface 35a is substantially at the same level as the sewing table T is that the cloth W is sewn by the sewing machine M.
When setting it on the sewing table T, the maintenance space is secured at a position closer to the material feed guide device 1,
The point is that the work can be facilitated and facilitated. However, such a downward movement of the scooping platform 35 is not essential, and the scooping platform 35 can be fixed at its raised position. Also, for example, a sewing machine M
In the case where the sewing table T is a flat table, the scooping table 35 itself may be unnecessary in the first place.

The climbing guide table 36 is provided on the horizontal surface 35a of the scooping table 35 and is formed so as to erect the plate-like claw pieces in the material feeding direction (see the white arrow). ing. In addition, the rising guide table 36 is provided with a curve at the upper edge thereof that gradually increases the height along the cloth feeding direction. And this climbing guide 3
6 is adjacent to the upstream side (the right side in FIG. 10) of the cloth feeding member 10 of the cloth feeding guide device 1 in the cloth feeding direction when the scooping platform 35 is raised, and the top of the upper edge curve is the above cloth. It is positioned so as to be slightly higher than the hanging member 10.

The climbing guide 36 has the following operation. That is, when the fabric W is clothing such as a T-shirt, in most cases, a shoulder joint F formed by stitching the front body m and the back body n is formed along the shoulder line as shown in FIG. There is. The shoulder joint F is in an orthogonal relationship with the sewn portion K, and when the finish sewing is performed, the cloth W is turned inside out so that the shoulder joint F has a cylindrical outward shape as shown in FIG.

Therefore, in the process of performing the finish sewing on the sewn portion K, if the shoulder joint portion F is fed to the fabric feed guide device 1 as it is, the sewn portion K is not used. Also, the fabric feeding along the shoulder joint F is prioritized, and as a result, the finish sewing comes to escape along the shoulder line, or the fabric W is jammed or the needle N is broken. It will be.

Therefore, when the scooping up base 35 is raised in advance when performing the finish sewing, the rising guide base 36 automatically pushes up the shoulder joint portion F as shown in FIG. 11 (a). That is, since the cloth W (sewing portion K) is temporarily released from the cloth feed guide apparatus 1, it is possible to prevent the shoulder joint F from being caught in the cloth feed guide apparatus 1. Is.

By the way, in this embodiment, the pressing plate 38 is provided above the climbing guide 36. The pressing plate 38 is provided integrally with the disengagement prevention member 11 of the material feed guide device 1 described above, and therefore moves up and down together with the disengagement prevention member 11 by the vertical movement driving tool 15 (see FIG. 1). The pressing plate 38 comes into contact with the cloth W when it descends, or stops at a position slightly above it. Therefore, the cloth W rises and the guide board 36
The cloth W is prevented from rising to an abnormal height beyond its limit.

It is preferable that the climbing guide table 36 has a structure (not shown) capable of adjusting the vertical position of the scooping table 35. However, for example, when the scooping platform 35 is fixed to the sewing table T of the sewing machine M, or when it becomes unnecessary, the climbing guide platform 36 is integrally formed with the fabric hanging member 10 of the fabric feed guide device 1. It is also possible to provide.

On the other hand, the release claw 37 is located between the sewing table T of the sewing machine M and the scooping table 35, and at substantially the same position as the ascending guide table 36 (a position corresponding to the material feed guide device 1). ), It is provided so as to be vertically movable with respect to the scooping platform 35. The release claw 37 is formed by bending a strip material into an L shape, and its up-and-down movement is performed by an up-and-down drive tool 40 that moves up and down together with the scooping platform 35 (note that the up-and-down drive tool). The fixing structure of 40 is not shown). The lifting drive 40 includes, for example, a fluid pressure cylinder,
A linear solenoid, a motor-driven linear device, etc. can be used.

Therefore, if the scooping platform 35 is raised and the release claws 37 are raised, as shown in FIG.
As shown in FIG. 1 (b), the cloth W can be released from the cloth feed guide device 1. This is done when the finish sewing B is applied to the sewn portion K for one round as shown in FIG. 17, and the purpose thereof is to eliminate the following problems. That is, at the start of sewing, that is, as shown in FIGS. 18 and 19, the seam B is sequentially formed from the position X in the direction of the arrow, and the seam B makes a complete turn, and the sewing start position X reaches the cloth hanging member 10. When it reaches, the finishing stitch B becomes doubled from the sewing start position X to the portion Z which is separated by a predetermined distance, and it becomes round and cannot be locked in the groove 13 of the cloth hanging member 10. There is. Therefore, the sewing start position X is displaced to the right from the claw-side piece 10a as shown in FIGS. 22 and 23,
If it is left as it is, the remaining part Y to X or the overlapped part X to Z, which is the unsewn part, is gradually displaced to the right to cause sewing failure, pulling of the material, misalignment, etc. There is a possibility that a wrinkle-like thing that is the cause may be generated, or that the wrinkle-like thing may be sewn on. After all, the raising of the release claw 37 described above is performed to prevent such a defect.

As for the rising timing of the release claw 37, the state immediately before the sewing start position X reaches the cloth hanging member 10 is set as the stitch count number, and when this count number is reached, FIG. 20 and FIG. As shown in FIG. 21, the release claw 37 is pushed up via the air cylinder 40. By doing so, the sewing start position X rises, and as described above, there is no risk of shifting to the right, and while maintaining the correct position above the sewing line, the succeeding finish sewing portion rises and the remaining portion Finish sewing is accurately performed between Y to X or the overlapped stitching portions X to Z, and the sewing is completed. The release claw 37 is then
Move back to the original position.

In the case where one round is not sewn, for example,
It is not necessary to operate the release claw 37 in the case of partial sewing such as sewing only to the rear side of the neck. next,
The seam removing device 5 will be described. The seam removing device 5 makes it possible to pull out a sewing thread (to be exact, an upper thread and a lower thread that have been sewn into the cloth W) from the sewing machine M when finishing sewing is completed, and the cloth W is sewn by the sewing machine. M
To prepare for removal from the
As shown in FIGS. 12 and 13, it has a cloth sweeping piece 45 and a sweeping drive section 46 that causes the cloth sweeping piece 45 to make a rectangular movement in the vertical direction.

In FIG. 13, Q is a needle plate of the sewing machine M (a lower base plate for receiving the pressing plate P, and a plurality of feed pieces H).
A thread hooking tongue provided on the
The needle N moves up and down in a piercing manner on both sides of the thread hooking tongue piece Q to form a stitch B for finish sewing. Therefore, when the sewing machine M finishes the finish sewing and performs the thread trimming, the sewing thread is still wound around the thread hooking tongue piece Q, and it is possible to carelessly pull out the material W from the sewing machine M as it is. If this happens, the seam B will be roughened or thread breakage will occur. for that reason,
This seam removing device 5 is necessary.

The cloth sweeping piece 45 is formed in a rod shape, and its longitudinal direction is orthogonal to the cloth feeding direction so as to cross the rear side (upper side in FIG. 13) of the pressing plate P in the sewing machine M. In this way, it is suspended and held from above. The lower surface of the cloth sweeping piece 45 is a serrated surface so that the cloth W can be pressed without slipping (not shown).

The cloth sweeping piece 45 has a sewing machine M.
An uplifting prevention plate 47 is attached so that the material W can be pushed down and held in parallel with the pressing plate P. The sweeping drive unit 46 includes a vertical drive tool 48 for moving the cloth sweeping piece 45 up and down, and an advance / retreat drive tool 49 for moving the vertical drive tool 48 itself back and forth along the cloth feed direction (see the white arrow). Have A fluid pressure cylinder, a linear solenoid, a motor-driven linear device, or the like can be used as the up-and-down drive tool 48 and the forward-backward drive tool 49.

From the above, in the seam removing device 5, after the finish sewing is completed and the thread cutting is performed in the sewing machine M, the sweeping drive section 46 lowers the fabric sweeping piece 45 to cause the fabric sweeping piece 45 to descend. W is pressed against the sewing table T, and then the material sweeping piece 45 is advanced in the material feeding direction (upper side in FIG. 13) to slide the material W on the sewing table T. At this time, the sewing thread wound around the thread hooking tongue Q of the sewing machine M is
The seam B is pulled out from the thread hooking tongue Q without causing the seam B to be roughened or causing thread breakage.

After that, the sweep drive section 46 causes the cloth sweeping piece 45.
Is raised, the cloth W is released at this point, and is ready to be taken out from the sewing machine M together with the already cut sewing thread. After that, the sweeping drive unit 46 retracts the dough sweeping piece 45 in the direction opposite to the dough feeding direction (downward in FIG. 13) to return to the standby position. Next, the cloth clamp device 6 will be described.

The dough clamp device 6 is designed to automatically hold and take out the dough W, and as shown in FIGS. 1 and 2, a clamp head 50 and a lifter 51.
It has a turning device 52 and a cloth hanger 53. Reference numeral 54 is a driving tool for the clamp head 50. A fluid pressure cylinder, a solenoid, a motor-driven gear mechanism, or the like can be used for the drive tool 54, the lifter 51, and the turning device 52, respectively.

In the cloth clamp device 6, as shown in FIG.
While the finish sewing is being performed, the hem of the cloth W is hung by the clamp head 50 as shown in FIG.
When the finish sewing is completed, the lifter 51 drives the lifter up and the turning device 52 moves the clamp head 90 to 90.
The fabric W is hooked on the fabric hanger 53 by making a turn.

The above is the structure provided in the sewing machine M for automating from the finish sewing to the take-out of the cloth W. In addition to this, the sensor for detecting the presence or absence of the cloth W, the operation confirmation, etc. in each part. Are provided, and the operation timing of each device or the like is automatically controlled (in some cases, an artificial operation is required) based on signals from these sensors.

Next, a procedure for performing finish sewing using this sewing machine M will be described. In the initial state of the sewing machine M, the pressing plate P and the needle N are raised. Further, in the material feeding guide device 1, the disengagement prevention member 11 (see FIGS. 3 and 4) rises, and in the material handling device 2, the pulling hook portion 18 is pulled.
(See FIG. 5) is retracted from the separating position, and in the guide removing device 4, the scooping platform 35 and the release claw 37 (see FIGS. 9 and 10).
(Refer to FIG. 12 and FIG. 13) is raised in the seam removing device 5.

On the other hand, the cloth W is turned inside out in advance as shown in FIG. First, the operator causes the sewn portion K (sewn start position) of the cloth W to be bitten into the cloth feeding guide device 1 as shown in FIG. 4, and the downstream side in the cloth feeding direction from this. The sewing machine M is placed on the sewing table T (the lower part of the pressing plate P and the material sweeping piece 45).

Then, a sensor (not shown) provided on the sewing table T or the like detects this, and the pressing plate P and the retaining member 11 descend, and the material W is pressed onto the sewing table T. Subsequently, the operator hangs a suitable portion of the sewn portion K of the cloth W on the hanging hook portion 17. This is achieved by a sensor (see FIG. 1) provided on the stay portion of the hanging hook portion 17 or the like.
Is detected, the pulling hook portion 18 is 180 °
It swivels horizontally and enters the inside of the mouth of the cloth W. Therefore, the cloth W has the hanging hook portion 1 as shown in FIG.
7, the pulling hook portion 18, and the pressing plate P (or the cloth sweeping piece 45) are in a three-point supporting state. Further, after the three-point support is performed, as shown in FIG.
Rises.

Then, the operator clamps the hem of the cloth W on the cloth clamp device 6 as shown in FIG. 2 (b).
At this point, the setting of the cloth W is completed. Note that the first nozzle 25, the second nozzle 26, the third nozzle 27, the fourth nozzle 28, and the fifth nozzle 25 in the airflow generation device 3 (see FIGS. 1 and 8) are appropriately timed up to this point. Nozzle 29
However, the compressed air is blown out in the respective set directions, and the preparation for starting the finish sewing is completed.

Next, finish sewing by the sewing machine M is started. This start may be performed by a switch operation by the operator, or may be automatically performed by detecting the time when the hem of the cloth W is clamped by the cloth clamp device 6, or Detection of clamp time,
For example, the detection can be automatically performed by a double detection signal for detecting that the worker has left the sewing machine M.

The finish sewing by the sewing machine M is automatically stopped on the basis of an arbitrary preset hand movement length. In addition,
If you want to finish sewing the entire circumference of the neck tape r,
The above hand movement length is a predetermined amount (5
It is preferable to set a long length by about 0 stitches). Even when the shoulder joint F of the material W, which is orthogonal to the sewn portion K, reaches the material feeding guide device 1 during the finish sewing, ascending guide table as shown in FIG. 11A. Three
Since the cloth W (sewing portion K) is temporarily released from the cloth feed guide device 1 by the action of 6, the finish sewing may escape from the predetermined line due to the shoulder joint F,
There is no possibility that the cloth W will be caught and clogged and the needle N will not be broken.

When the finish sewing of the sewing machine M is stopped and it is necessary to perform the overlapped stitching, FIG.
As shown in (b), the release claw 37 is raised to release the cloth W (sewn portion K) from the cloth feed guide device 1. On the other hand, in the sewing machine M, the needle N is raised when the finish sewing is stopped, and thread cutting is automatically performed below the needle plate (see the thread hooking tongue Q shown in FIG. 13).

Next, as shown in FIG. 12, the cloth sweeping piece 45
Comes down to press the material W on the sewing table T of the sewing machine M, and the sewing machine M raises the pressing plate P after waiting. Then, in the airflow generation device 3, the nozzles 25 to 29 that were in the compressed air blowing state as described above.
All at once, and in tandem with this, the seventh nozzle 31 (see FIG. 8) starts blowing out compressed air, and the thread remaining on the needle N swims in the direction opposite to the cloth W. It is supposed to be.

At about the same time, the pulling hook portion 18 (see FIG. 5) horizontally swivels 180 ° and the cloth W
Retreat outward from the cylinder mouth and return to the standby position. Further, the detachment preventing member 11 and the pressing plate 38 (see FIG. 9) rise, and the scooping platform 35 descends. Next, the seam removing device 5 (see FIG. 12) causes the material sweeping piece 45, which has already been lowered as described above, to advance, ascend, and retract in the material feeding direction. The sewing thread B (see FIG. 13) wound around the piece Q is pulled out together with the cloth W.

Next, the air flow generation device 3 is operated by the sixth nozzle 30.
(Refer to FIG. 8) Compressed air is blown from the sewing machine M for a short period of time to blow the fabric W to the side of the sewing machine M.
Therefore, the cloth W is separated from the sewing table T, and is in a state of being hung just below the cloth clamp device 6 (see FIG. 2B). Next, the cloth clamping device 6 raises the clamp head 50 and horizontally turns 90 ° to make the hem of the cloth W overlap the cloth hanger 53, and then the clamp head 50 is released. Therefore, the cloth W can be hung on the cloth hanger 53 in a folded state.

In the material clamp device 6, if the clamp head 50 is lowered and horizontally turned in the opposite direction to the above by 90 ° and returned to the standby state, one cycle of an integrated work from finish sewing to removal of the material W Ends. FIG. 24 shows a second embodiment of the present invention in which the cloth W is turned upside down and the cylinder type sewing table T is used.
It is to be loaded into and sewn. In this case, the hanging hook portion 17 is provided below the sewing table T.

The present invention is not limited to the above embodiment. For example, the sewing machine M may be a single-needle type, a three-needle type, or the like. It is also possible to use a type in which the sewing table T is a flat table. Further, in the material W, there is no limitation on the material itself, the place of the sewn portion K where the finish sewing is to be performed, and the like. For example, the sewn portion K may be a shoulder or a cuff. Furthermore, it is not limited that the cloth W is clothes, and therefore the cloth W is not limited to have a tubular shape.

[0061]

The present invention has the above-mentioned structure, and when setting cloth such as clothes on the sewing table of the sewing machine, one side of the cloth feeding direction in the seam allowance portion is hooked on the cloth hanging member. After that, when the stopper member is pushed down onto the sewing table, the stopper member comes to be positioned on the other side of the cloth feed direction in the seam allowance portion with respect to the cloth, and the cloth hooking member with respect to the cloth hooking member. As a result, the fabric placed on the sewing table is held and held by the fabric allowance member from the left and right and up and down in the fabric feed direction by the fabric hooking member and the retaining member. Therefore, it is possible to sew without having to manually hold the cloth. Therefore, the work such as finish sewing can be performed easily and surely, and the work can be highly efficient. Furthermore, since this work can be automated, the worker can also perform other types of work,
The efficiency of the entire sewing work can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a sewing machine capable of consistently automating from finish sewing to take-out of cloth after sewing.

FIG. 2 is a perspective view showing how fabrics are set on the sewing machine shown in FIG.

FIG. 3 is an enlarged perspective view showing a cloth feeding guide device.

FIG. 4 is an enlarged front view showing a fabric feed guide device.

FIG. 5 is an enlarged plan view showing a dough separating device.

FIG. 6 is an enlarged side view showing a dough separating device.

FIG. 7 is a plan view of an essential part showing an enlarged state of hooking of the cloth by a pulling hook portion of the cloth separating apparatus.

FIG. 8 is an enlarged front view of the part corresponding to the sewing machine, showing the nozzle arrangement of the airflow generation device.

FIG. 9 is an enlarged perspective view showing a guide removing device.

FIG. 10 is an enlarged side view showing an operation state of a scooping platform in the guide removing device.

11A and 11B are operation explanatory views of the guide removing device, in which FIG. 11A is when the shoulder joint is passed, and FIG. 11B is when finishing sewing is completed.

FIG. 12 is an enlarged perspective view showing a seam removing device.

FIG. 13 is an enlarged plan view of the portion corresponding to the sewing machine, which illustrates the operation of the seam removing device.

FIG. 14 is a front view showing a case where the cloth is a T-shirt.

15 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 16 is an enlarged perspective view showing a groove forming tool provided in a conventional sewing machine.

FIG. 17 is a perspective view showing a sewing situation.

FIG. 18 is a front side plan view showing a sewing operation.

FIG. 19 is a rear surface side plan view showing the sewing operation.

FIG. 20 is an enlarged side sectional view for explaining the operation of the release claw.

FIG. 21 is an enlarged front sectional view for explaining the operation of the release claw.

FIG. 22 is an enlarged plan view illustrating a defect phenomenon due to overlapped stitching.

FIG. 23 is an enlarged front sectional view for explaining a defect phenomenon due to overlapped stitching.

FIG. 24 is a perspective view showing a second embodiment of the present invention.

[Explanation of symbols]

 1 cloth feeding guide device 2 cloth separating device 3 air flow generator 4 guide removing device 4 5 seam removing device 6 cloth clamping device 10 cloth hanging member 11 slip-off prevention member 17 hanging hook portion 18 pulling hook portion 35 scooping platform 36 climbing guidance Platform 37 Release claw 45 Fabric sweeping piece M Sewing machine N Needle T Sewing platform P Holding plate W Fabric K Sewing part

Claims (1)

[Claims] 1. A cloth hanging member (10) provided upstream of a needle position in the cloth feeding direction with respect to a sewing table (T) of a sewing machine (M), and a shape which is adjacent to and opposes the cloth hanging member (10). And a disengagement prevention member (11) that can be pushed down to the upper part of the sewing table (T).
0) and the disengagement prevention member (11) sandwich and hold the seam allowance portion (K) of the material (W) from the left and right and up and down in the material feeding direction.