JPS6243707B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a method for sewing two long pieces of fabric together by sewing (seaming) the edges of each other when subjecting two pieces of fabric to a dyeing process, for example. This article relates to a method and device for joining fabrics.

(Prior art) For example, when sewing and joining the edges of a long piece of fabric to each other during dyeing, if both ends are sewn overlappingly using a regular sewing machine, the ends will be joined together after the dyeing process. When unraveling, uneven dyeing occurs. For this reason, the fabric is usually sewn and joined using an overlock sewing machine to ensure uniform dyeing all the way to the edges of the fabric.

(Problem to be solved by the invention) However, it is extremely troublesome work to sew this kind of relatively wide fabric while aligning the edges, resulting in an inefficient sewing process. The reality is that they are doing so.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to sew the edges of a long fabric to each other in a very simple manner and with high efficiency. An object of the present invention is to provide a method and device for sewing together long pieces of fabric, which can be sewn together.

(Means for Solving the Problems) In order to achieve the above object, the present invention is a method of sewing and joining the end edges of two long pieces of fabric using an overlock sewing machine, the method comprising: Hold the strip of fabric above parallel to each other, let the edges of both strips of fabric hang down, align the edges, and set the fabric in the sewing section of the overlock sewing machine. The sewing machine moves along the edge portions in synchronization with the sewing machine to sew the edge portions of both the elongated pieces of fabric.

Furthermore, the apparatus for carrying out the method includes a fabric support that holds both of the elongated fabrics parallel to each other above, and a fabric support that extends along the edges of both of the elongated fabrics that are suspended from the fabric support. A moving rail installed at a lower position, a trolley that moves along this rail in synchronization with the feed pitch of the sewing machine, and a trolley that is installed to move the edge portions of both hanging fabrics in the width direction. The machine is equipped with an overlock sewing machine having a sewing section for sewing along the length of the sewing machine.

(Function) With the above structure, both fabrics to be joined are held by the fabric support, their respective edge parts are allowed to hang down, and the edge parts are aligned and sewing is performed using the overlock sewing machine located at the lower position. When the sewing machine is driven and the trolley is moved,
Since the sewing machine is moved by the trolley in synchronization with the feed pitch of the sewing machine, the edges of both pieces of fabric are automatically sewn and joined in a state where they are aligned.

(Example) Hereinafter, one embodiment of the present invention will be explained in detail.

FIG. 1 shows a front view, and FIG. 2 shows a cutaway right side view. Reference numerals 1 and 2 denote supports for a long fabric 3, each consisting of one pair of support rollers 1a, 1b, 2a, and 2b. hold it in a horizontal position and parallel. By a pair of guide rollers 4, 5 provided below the supports 1, 2, the two fabrics 3, 3 rotatably supported by both the supports 1, 2 are overlapped with their edges aligned.

Reference numeral 6 indicates a moving rail fixed on a support base 7 along the overlapping edges of both fabrics 3, 3, and wheels 9 of a moving trolley 8 are mounted on this rail 6. A pair of guide rollers 13, 13 at the bottom of a holding rod 12, which is vertically installed from the mounting plate 11 of the trolley 8, is in clamped contact with a guide plate 10 that projects horizontally from the bottom of the rail 6. 9
The carriage 8 is moved stably on the rail 6 by the guide rollers 13 and 13.

Next, the driving means for the truck 8 will be explained. This drive mechanism section is suspended from the lower surface of the mounting plate 11, and the rotation of a motor 14 serving as a drive source at the bottom is transmitted to a continuously variable transmission 16 via a chain or belt 15. 16 rotations are redirected via a bevel gear (not shown).
It is transmitted to the 1/60 reduction gear 17. This reducer 17
A sprocket 18 is attached to the shaft, and this sprocket 18 is engaged with a chain 19 stretched along the rail 6 at the bottom thereof, so that the cart 8 is rotated by the rotational drive of the motor 14.
It is designed to move along the

20 is a well-known overlock sewing machine installed on the mounting plate 11 of the trolley 8, and as shown in FIG. The rotation of the drive motor 22 operates the overlock sewing machine via the clutch 23. Sewing section 2 of this overlock sewing machine
The feeding mechanisms arranged in 1 are arranged on both the left and right sides of the edge parts of both fabrics 3, 3 to be inserted into the sewing part 32, and as shown in FIG. The edges of the fabrics 3, 3 are simultaneously held and pressed by the teeth 24, 25 and fed out, thereby preventing any misalignment of the stitches.

In the embodiment device having the above configuration, the fabrics 3, 3 are
When placed on the support bodies 1 and 2, the fabrics 3 and 3 are moved by the pair of support rollers 1a, 1b and 2 of the support bodies 1 and 2, respectively.
This is because it is rotatably supported by a and 2b. fabric 3,
The sewing machine 3 can be rotated to make the respective end edges hang down, aligned, joined and held by guide rollers 4 and 5, and then set in the sewing section 21 of the overlock sewing machine 20.

Once the above-mentioned settings are performed, sewing and joining will be automatically performed just by turning on the power. That is, when the overlock sewing machine 20 is driven and sewing is started, the carriage 8 moves in synchronization with the feed pitch of the sewing machine 20, and contrary to existing sewing machines, the fabrics 3, 3 are fixed in the sewing machine. 20 moves. Therefore, fabric 3,3
are suspended and fixed with their respective edge portions aligned, so once the edge portions of the fabrics 3, 3 are aligned, no work is required during the sewing operation.
Further, since the feeding mechanisms are disposed on both the left and right sides of the sewing section 21 of the sewing machine 20, there is no possibility of stitching at the end edges of both the hanging fabrics 3, 3.

It should be noted that the present invention is not limited to the embodiments described above, and it goes without saying that various embodiments are possible without departing from the scope of the claims. Synchronization with the pitch may be performed mechanically using a transmission mechanism for one drive source, or these mechanisms may be performed using an electrical synchronization circuit. In this case, it is not necessary to move the sewing machine intermittently in accordance with the articulated feed of the sewing machine 20; it is sufficient to move the sewing machine at a constant speed that does not interfere with the feed of the sewing machine 20. Further, it goes without saying that various moving means can be used as a moving mechanism for the trolley 8.

(Effects of the Invention) As described above, according to the method and device for sewing together long pieces of fabric according to the present invention, two pieces of fabric to be sewn are held parallel to each other, their edge portions are allowed to hang down, and both edge portions are sewn together. The fabric is aligned and set in the sewing section of the sewing machine, and the sewing machine is moved in synchronization with the feed pitch of the sewing machine, so it is easy to align the edge of the fabric, and once the edge of the fabric is Once they are aligned, there is no need to make corrections according to the sewing work as in the past, and sewing can be performed automatically, so workability is extremely good and sewing can be performed with high efficiency.

[Brief explanation of the drawing]

The drawings show an embodiment of the sewing and splicing device for long fabrics according to the present invention, in which FIG. 1 is a front view, FIG. 2 is a cut right side view, and FIG. 3 is a partial plan view. DESCRIPTION OF SYMBOLS 1, 2...Fabric support body, 3...Fabric, 6...Movement rail, 8...Dolly, 20...Overlock sewing machine, 21...Sewing section.

Claims (1)

[Scope of Claims] 1. A method of sewing and joining the end edges of two elongated fabrics using an overlock sewing machine, the method comprising: holding both elongated fabrics above parallel to each other; The end edges of the length of fabric are allowed to hang down, and the end edges are aligned and set in the sewing section of an overlock sewing machine, and the sewing machine is moved along the end edges in synchronization with the feed pitch of the overlock sewing machine. A method for sewing and joining elongated fabrics, characterized in that the end edges of both elongated fabrics are sewn. 2. A device for sewing and joining the edges of two long fabrics using an overlock sewing machine, which includes a fabric support that holds both of the long fabrics parallel to each other above, and a fabric support that hangs down from the fabric support. a moving rail installed at a position below the edges of both long pieces of fabric; a carriage for moving along the rails in synchronization with the feed pitch of the sewing machine; 1. An overlock sewing machine having a sewing section that sews the end edges of both hanging pieces of fabric along the width direction thereof.