JPH0426463A - Sewing device - Google Patents

Abstract

PURPOSE:To continuously perform plural different sewing processes to cloth by carrying the cloth automatically from a preceding sewing machine to a succeeding sewing machine, as soon as the work of the preceding sewing machine is finished, and also, setting automatically the cloth to a sewing part of this succeeding sewing machine. CONSTITUTION:Cloth corresponding to the body part 12 is set, and while this cloth is being fed, vertical and horizontal tapes are supplied to an edge of this cloth, these tapes are turned in and sewn into the body part and a face front erect part is formed. The cloth sewn by this face front erect sewing machine is fed on a table 21 by a transfer means and placed on a turntable 81 of a first main carrying means 80a. The cloth placed on this turntable is fed by a transfer means 82 on the turntable and placed in about the center position on the turntable. The turntable 81 is rotated clockwise about 90 deg. by a driving means 86 and this turntable is aligned in a table 71 of a first hole overlock sewing machine 70a. Subsequently, the cloth is fed by a moving means 28 and transferred to the table 71 of the hole overlock sewing machine from the turntable 81.

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention relates to a sewing device that can continuously perform a plurality of different sewing processes on a cloth. (Prior Art) Conventionally, when fabric is subjected to multiple different sewing processes to produce a finished or semi-finished product, a sewing machine for each sewing process is arranged, and one worker transfers the sewing machine from one sewing process to another. The fabric is conveyed to the sewing machine where the manufacturing process is carried out.Especially when sewing the front placket of a Y-shirt, etc. First, the front placket part is formed on the body using the front placket sewing machine, and then the fabric is sewn. An operator carries the front placket sewing machine to a hole sewing machine, and uses this hole sewing machine to form a plurality of buttonholes on the front placket and to sew these buttonholes. However, as mentioned above, in the conventional technology, a worker must transport the fabric one by one from a sewing machine that performs one sewing process to a sewing machine that performs another sewing process. When the fabric is sent to a sewing machine that performs other sewing processes, the fabric must be set in the sewing machine that performs other sewing processes, making the work extremely complicated. In addition to these drawbacks, there was a drawback that each worker had to wait for a long time and work efficiency was low.
The working time of a buttonhole sewing machine is approximately 22 seconds, and since the latter takes twice as long as the former, it is necessary to stop working on the front and front placket sewing machine while working on the buttonhole sewing machine. This is to prevent this from happening. For this reason, 2 to 3 hole sewing machines are required for one front front sewing machine? Although it is conceivable to arrange it, this would not allow a basolateral worker to carry out the work. SUMMARY OF THE INVENTION An object of the present invention is to provide a sewing device which is useful in practice and which overcomes the drawbacks of the prior art as described above. (Comprehensive means for solving the problem) In order to achieve the above-mentioned object, the present invention connects a leading sewing machine that performs one sewing process and a trailing sewing machine that performs another sewing process 6 by a conveyance mechanism. [Function] This transport mechanism automatically transports the fabric from the preceding sewing machine to the following sewing machine as soon as the work of the preceding sewing machine is completed, and automatically sets the fabric in the knitting section of this following sewing machine. By kneading. A plurality of different sewing processes can be continuously applied to the fabric. (Examples) Two embodiments of the present invention will be described below in detail with reference to the drawings. Figure 2 shows a sewing device according to the present invention, which is implemented, for example, in a front placket sewing system 10 for forming a front placket of a garment. The sewing object 11 sewn by the placket sewing system is a body with a front placket, such as a Y-shirt,
It has a normal form as shown in Figure 9 and Figure 10. ff1J This product 11 consists of a body 12, a front placket 13 formed on the edge of the body, and a plurality of buttonholes 14 formed in the front placket and elaborately drilled. This front placket sewing system performs one sewing process on the fabric, that is, the front placket part 13 is formed using the front placket sewing machine 2.
0, and a hole sewing machine 70 for forming a plurality of buttonholes 14 on the fabric and sewing the buttonholes. The front and front stand stitch sewing machine 20 has a normal form, so its structure can be briefly described as follows: a table 21, a front and front stand sewing section 22 provided on the chiffle, a transfer means 23 for feeding the fabric, and a tape guide means 24. It is equipped with Also, this sewing machine cuts the edge of the body part 12 placed on the table into the 10th
Fold it upward as shown. As shown in FIG. 8, the tape guide means 24 has a guide frame 27 that overlaps a vertical tape 25 and a horizontal tape 26 and folds them into the vertical tape 25. Incidentally, reference numeral 28 indicates a reel of vertical tape. As shown in FIG. 10, both edges of the vertical tape 250 are folded into the guide frame so as to embrace the horizontal tape 26. The tape assemblies of these horizontal tapes and vertical tapes are placed on the body 12, and these tape assemblies and the heavy fabric such as the body are conveyed by the conveying means 2 and are attached to the front placket sewing section 22 at 29 in FIG. As shown in , both edges of the tape assembly are sewn to form a body 12+C front placket portion 13. The conveying means 23 consists of a pair of rollers 30, 30' driven to contact the fabric and feed the fabric, and a timing belt 1 connecting these rollers. These rollers are driven by a motor 52. Front front sewing part 22
has a normal structure such as two wooden nails 33 and a presser foot 64. What is noteworthy is that this front front sewing machine has a cutter machine #
! 40 is provided. As shown in Figure 9, this cutter mechanism is used to cut the straight end 11 of the sewing material 11.
The body part has the front placket sewn to form an aY shape.
One end of the front placket fabric is automatically cut while this fabric is being fed, and the other end of the body/front placket fabric is cut from this fabric so as to form a shadow on the other curved end of the sewn product. Automatically disconnects while being sent. The other end 11b of this sewing product is formed into a curved shape in order to sew the collar here. This cutter mechanism is as shown in Figure 11.
1 and a frame 42 movably supported by the base. A cutter assembly 46 is fixed to this frame. The cutter assembly 46 has a cutter 44 that accommodates the fabric. A drive for driving the guide means 45 and the cutter so that the cutter 44 moves in an edge shape as shown by the arrow in FIG. 11 or in a curved shape as shown by the arrow R. Means 46 are provided. The guide means 45 is a protrusion 4 extending from the frame 42.
It consists of a cylinder 47 fixed to 2a, a follower 49 attached to the tip of a piston rod 48 of this cylinder, and a cam means 50 with which this follower can come into contact. The cam means is formed on the base 41 and consists of a straight cam part 51 and a curved cam part 52 arranged below the straight cam part. Therefore, by arbitrarily expanding and contracting the piston rod 48 of the cylinder 47, the °C follower 49 is selectively brought into contact with the linear cam portion 51 (as shown by the solid line in FIG. 12) or the curved cam portion 52 (as shown by the solid line in FIG. 12). The drive means 46 consists of a cylinder 53 connected to the frame 42.More specifically, a pair of cylinders 53 are arranged vertically apart from the frame 42 at a distance. The upper and lower ends of a shaft 54 are fixed to each of these flanges.The tip of a piston rod 55 of a cylinder 53 is fixed to this shaft 54.The base 41 has a shaft 54 fixed to it. A guide full 156 is formed to guide the movement of the shaft. Therefore, when the piston rod 55 of the cylinder 53 is extended from the state shown in FIG. 11, the frame 42 moves in the direction shown by the arrow. If the follower 49 of the second guide means 45 is in contact with the linear cam portion 51, the cutter 44 will move in the linear direction, and if the follower 49 is in contact with the curved cam portion 52, the cutter 44 will move in the curved direction H. When the front placket 1 is sewn onto the body 12, the follower 49 is first moved straight to cut one end of the body/front placket fabric in a straight line. The cutter 44 is moved linearly in contact with the expanded cam portion 51, and then the follower 49 is contacted with the curved cam portion 52 and the carfter 44 is moved in a curved manner in order to cut the other end of the fabric in a curved shape. In this way,
While the fabric is being fed, one end of the fabric is automatically cut in a straight line and the other end in a curved line. In addition, this front front °C stitch sewing machine 20 includes a guide frame 61 for guiding the fabric. Air blowing means 62 for pressing the fabric against this guide frame. A sensor (not shown) for detecting the position of the fabric, a gripper (not shown) attached to the rear end of the fabric, etc. are provided.The hole sewing machine 70 has a normal configuration as shown in FIG. Therefore, the configuration of this over-hole sewing machine, briefly stated, includes a table 71 and an over-hole sewing section 72. This over-hole sewing section 72 is used to sew the body and the front side sewn by the front and front stand stitch sewing machine. A plurality of buttonholes are formed in the front placket part of the placket fabric and these buttonholes are sewn.The buttonholes made in this way are shown in Fig. 9. Reference numeral 72 has a conventional sewing means (not shown).This sewing means includes a feeding means for feeding the cloth, a cutter means for forming a plurality of buttonholes, a nail for sewing these buttonholes, etc. This sewing machine 70 is provided with an indexer 73 that feeds the fabric intermittently.This indexer moves intermittently to bring the fabric to the sewing position of each buttonhole. It should be noted that the front facing sewing machine 20 and the hole sewing machine 70 are connected by a conveyance mechanism 80. In the illustrated practical example, as shown in FIGS. 1 and 2,
One front front stand stitch sewing machine 20 and the first and second hole sewing machines 70a and 70b are arranged, and a conveyance mechanism 80 is provided between the first front front stand stitch sewing machine 20 and each hole stitch machine.
is located. In this case, the chiffle 21 of the first front facing sewing machine and the table 71 of the overholing sewing machine are perpendicular to each other. They are arranged in a direction perpendicular to the direction in which the fabric is fed. This conveyance mechanism is configured to automatically and selectively feed the fabric sewn by the front and front face stitch sewing machines to the respective hole stitching machines. In this way, if you connect two hole sewing machines to one front and front sewing machine. As will be described later, downtime of the front and front stand stitch sewing machine can be kept to a minimum. This carrier flI! 80, as shown in FIGS. 1 and 2, first and second hole sewing machines 70a; first and second main conveyance means 8 adjacent to each of 70b;
It consists of 0a, 80'a and an auxiliary conveyance means 80b arranged between these main conveyance means. More specifically, the first main conveyance means 80a is arranged between the front and front standing stitch sewing machine 20 and the first hole sewing machine 70a, and the auxiliary conveyance means 80b is arranged adjacent to the first main conveyance means 80aK. placed. A second main conveying means 80'a is arranged adjacent to this auxiliary conveying means and the second hole sewing machine 70b. First and second main transport means 802L. 80'a includes a rotatable turntable 81 and a transfer means 82 (FIG. 6) provided on this turntable.Auxiliary transfer means 80b includes a table 86 and a transfer means 82 provided on this table. means 84.The table 21 of the one front placket sewing machine and each table 81 of the conveying mechanism are arranged so that the fabric from the front placket sewing machine 20 can be transferred to the first and second hole sewing machines through the conveying mechanism. 86, the levels of the tables 710 of the first and second hole sewing machines are set to be the same.As shown in FIG. 6, the turntable 81 is rotatably supported by a shaft 85 on a base (not shown). This turntable 81 is driven by a driving means 86. This driving means includes, for example, a bell crank 87 fixed to a shaft 85 and a cylinder 89 connected to one arm 88 of this bell crank, as shown in FIG. The tip of the piston rod 90 of this cylinder extends from the arm 88 and is connected to the lobe 91.Therefore, when the piston rod 90'ri of the cylinder 89 is extended as shown in the arrow from the state shown in the figure, it turns. It is possible to rotate in the direction shown by the arrow about the center axis 0w of the front front sewing machine or the shaft 85.As described above, the table 21 of the front facing sewing machine and the table 71 of the hole sewing machine are arranged perpendicularly to each other. Therefore, the turntable 81 is connected to these tables 21.
．． It is driven by a driving means 86 within a range of approximately 90° so as to be able to face each of 71. Incidentally, a pulse motor may be used instead of the cylinder as the driving means 86, and by controlling the pulse motor, selective conveyance can be carried out in any plurality of directions.Also, other mechanisms may be used. It can also be used. One stopper means 92 is provided for regulating the rotation range of the turntable, and this stopper means is connected to the bell crank 8.
It consists of a screw 94 that can be engaged with the other arm 9 of 7. This screw is screwed into a block 95 fixed to the base. The transport means 82 of the first and second main transport means 80a, 80'a and the transport means 84 of the auxiliary transport means 80b have the same construction in the illustrated embodiment. Therefore, for only one transfer means 82, "CC 6th 2 bell) 1[IQ" and two 7-IJ 1 0 1 supporting this belt tracker,
It consists of a driving means 102 for driving one boob and a fabric guiding means 106. The drive means 102 consists of a pulse motor connected to the boot. The guide means 103 consists of a positioning plate 104 attached to the rear edge of the turntable 81 and a frame member 105 attached to the turntable. The edge of the front placket of the fabric is arranged so as to come into contact with the positioning plate 104 (see Fig. 7).The frame member is located at the boundary between the body 12 and the front placket 13 on the opposite side of the positioning plate, that is, the overlapping part. 1
3a (see Fig. 7).
. Therefore, the "c2 fabric is the engaging part 1 of the positioning plate 104 and the frame member.
06 to the correct feeding position, and is fed by the belt 100 in the ℃ feed direction FK. Transfer means 1 similar to this transfer means 82 are also provided on the table 71 of the hole sewing machine and at the front and back positions of the hole sewing section.
20 are provided

[See Figure 6]. The table 21 of the front and front stand stitch sewing machine 20 is provided with a transfer means (not shown) for transporting the fabric at the rear of the front and front placket sewing section, that is, on the turntable 81 side of the first main transfer means 80a. The transport means consists of a conveyor belt mounted on a table and driven into contact with the fabric. Apart from this, a structure similar to that of the transfer means 82 can also be used. All operations of the above-mentioned front front sewing system, such as sewing work by the front front standing stitch sewing machine and transporting the fabric from the front front standing stitch sewing machine to the hole sewing machine, are carried out by the controller 300 shown in FIG.
controlled by Further, each hole sewing machine is provided with a stacker 400 as shown in FIG. Next, the operation of the above-mentioned front-front sewing system will be explained. First, the fabric corresponding to the body part 12 is set on a front-front stand stitch sewing machine, and while this fabric is being fed, vertical and horizontal tapes 25 and 26 are supplied to the edges of this fabric, and these tapes are folded in as described above. The front placket is sewn into the body to form the front placket. The fabric sewn by this front-front standing stitch sewing machine is sent over the table 21 by the transport means and placed on the turntable 81 of the main transport means 80a of the commode 1. The fabric placed on the turntable is conveyed by a transfer means 82 on the turntable and placed at approximately the center position on the turntable. Next, the turntable 81 or the sixth
The turntable is rotated approximately 90 degrees clockwise as seen by the arrow in the figure, that is, in FIG. 6, and this turntable is aligned with the table 71 of the first hole sewing machine 70a. Next. The fabric is conveyed by the moving means 82 to the turntable 8
1 to the table 71 of the overholstering machine. The fabric is fed by the transfer means on the table, and while being fed by the indexer, buttonholes are formed and buttonholes are stitched by the stitching section. The fabric is then formed into a sewn article 11 and sent to a stacker. As described above, after the fabric is transferred from the turntable 81 to the table 71, the turntable 81 is rotated and returned to its original position. Then, the next piece of fabric sewn by the front facing sewing machine is transferred from the front facing sewing machine's chiffle to the turntitch full 81. The next fabric transferred onto this turntable 81 is sent by a transfer means 82 and transferred onto the table 83 of the auxiliary transfer means 80b, where it is sent by a transfer means 84 to the second main transfer means 80.
'Transferred to Otsu's turntable 81. Next, this turntable 81 is rotated and the fabric is moved to the second place in the same way as described above.
The material is transferred to a hole sewing machine 701) where buttonholes are formed and buttonholes are made, and then sent to a stacker. For details of such operation, please refer to the flowcharts in FIGS. 16 and 14. As described above, in the present invention, the sewing machine selectively and automatically changes the fabric from the front facing upstitch sewing machine to the overlock sewing machine. Can be transported. FIG. 5 shows an example of use in combination with the back placket sewing system 200 which is the front placket sewing system as described above. This back front sewing system 20 has a grave front sewing machine 201, and the one with buttons has a sewing machine 202 and a woru feed mechanism 20.
3 and connected at ℃. This transport mechanism consists of a belt and pulley assembly similar to the transport mechanism described above. This conveyance mechanism automatically conveys the fabric from the placket sewing machine 201 to the button sewing machine 202. As described above, since the front placket sewing system and the good placket sewing system can perform predetermined sewing 2 while automatically feeding the fabric, a single worker can perform these front placket and back placket operations. Note that in the above embodiment, 1. Two overholing machines are connected to one front and front standing sewing machine, or six or four overholing machines can be connected. The number or arrangement of conveyance mechanisms can be set arbitrarily depending on the number of overlock sewing machines. (Effects of the Invention) As described above, according to the present invention, fabric can be automatically and selectively transported from a leading sewing machine that performs one sewing process to a trailing sewing machine that performs another sewing process. However, there is no need to carry it by foot. The fabric can be automatically set at the sewing position of the following sewing machine, so there is no need for the operator to set it one by one. This has the practical benefit of greatly improving work efficiency. Furthermore, due to the fact that the working time for both front-front standing stitch sewing machines and over-hole sewing machines is approximately twice as long as that for moe sewing machines, 1.
A plurality of hole sewing machines are arranged for a table front standing stitch sewing machine, and these machines are connected by a conveyance mechanism as in the present invention so that the fabric is automatically fed, thereby eliminating the downtime of the front front standing stitch sewing machine. There is a huge advantage in being able to do this.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment in which the sewing device according to the present invention is applied to a front face sewing system, Fig. 2 is a plan view thereof, and Figure 3 is a perspective view of the main parts of the front face front sewing machine. , 4th
The figure is a perspective view of the main parts of the hole sewing machine, Fig. 5 is a plan view showing an example of use when used in conjunction with an agricultural placket sewing system such as a front placket sewing system, and Fig. 6 is a perspective view of the main parts of the conveyance mechanism. Fig. 7 is a front view of the guide means, Fig. W8 is a perspective view of the vertical and horizontal tape portions of the front and front standing stitch sewing machine, Fig. 9 is a plan view of the sewn product, and Fig. 10 is a sectional view taken along the line A-A in Fig. 9. , FIG. 11 is a plan view of the cutter mechanism, FIG. 12 is a perspective view showing the arrangement relationship between the manual cam and the follower, and FIGS. 13 and 14 are flow charts showing the operation of the apparatus of the present invention. 10... Front placket sewing system, 11... Sewn article, 12... Body, 13... Front placket part, 14.
・・Button hole, 20 ・・Front front sewing machine,
40... Cutter mechanism, 70... Hole sewing machine, 80... Conveyance@檎, si... Turntable.

Claims (1)

[Scope of Claims] 1. A leading sewing machine that performs one sewing process on fabric, a trailing sewing machine that performs another sewing process on the fabric that is different from the sewing process of the leading sewing machine, and the leading sewing machine and the trailing sewing machine. and a conveying mechanism that connects the sewing machines, and the conveying mechanism automatically conveys the fabric from the leading sewing machine to the trailing sewing machine, thereby continuously performing a plurality of different sewing processes on the fabric. sewing equipment. 2. At least one transport mechanism is connected to one leading sewing machine, a plurality of trailing sewing machines are connected to the transport mechanism, and the transport mechanism selectively transfers fabric from the leading sewing machine to any of the trailing sewing machines. The sewing device according to claim 1, wherein the sewing device is adapted to be transported. 3. The sewing device according to claim 1, wherein the leading sewing machine comprises a front facing sewing machine and the trailing sewing machine comprises a hole sewing machine.