JPS6232995A - Method and apparatus for stitch-splicing of long cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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 sewing together 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 provides a method of sewing together the end edges of two long pieces of fabric using an overlock sewing machine, the method comprising: Hold the strips 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 is moved along the edge portions in synchronization with the sewing machine to sew the edge portions of both the elongated pieces of fabric.

Furthermore, an apparatus for carrying out the method, comprising: a fabric support that holds both the elongated fabrics upward in parallel; A moving rail installed at a lower position, and a trolley that moves along this rail in synchronization with the feed pitch of the sewing machine.
An overlock sewing machine is provided on the trolley and has a sewing section that sews the end edges of both of the hanging fabrics along the width direction thereof.

(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 to allow sewing on the overlock sewing machine at the lower position. When the sewing machine is driven and the carriage is moved, the sewing machine is moved by the carriage in synchronization with the feed pitch of the sewing machine, so the edges of both fabrics are automatically sewn together. Spliced.

(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. 1.2 is a pair of support rollers la and lb, respectively.
, 2a and 2b, the raw jig 113 wound into a roll is held in a horizontal position and parallel to each other with a predetermined interval.

A pair of idle rollers 4 and 5 provided below the support 1.2 cause the fabrics 3.3 rotatably supported by the support 1 and 2 to be overlapped with their edges aligned.

Reference numeral 6 indicates a moving rail fixed on the support base 7 along the overlapping edges of both fabrics 3, 3, and this rail 8
The wheels θ of the moving trolley 8 are mounted on the top, and the lower part of the holding rod 12, which is vertically mounted from the mounting plate 11 of the one trolley 8, is mounted on the guide plate lO, which projects horizontally from the lower part of the rail 6. A pair of guide rollers 13.13 are pinched and rolled, and the cart 8 is stably moved on the rails 8 by the wheels 8 and the guide rollers 13.13.

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,
The rotation of the motor 14, which is the drive source at the bottom, is transmitted to the continuously variable transmission 16 via a chain or bell (15), and further, the rotation of the continuously variable transmission 1B is changed direction via a bevel gear (not shown). /80 speed reducer 17.

A sprocket 18 is pivotally attached to this reducer 17, and this sprocket 18 is engaged with a chain 19 stretched along the rail 8 at the lower part thereof, so that the trolley 8 is rotated by the rotational drive of the motor 14. is adapted to move along the rail 8.

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. The feed mechanism disposed in the sewing section 21 of this overlock sewing machine is disposed on both left and right sides of the edge portions of both fabrics 3.3 inserted into the sewing section 21, and is shown in FIG. As shown, the left and right feed dogs 24,
At the same time, the edge portions of the fabric 3.3 are pinched and pressed at 25 and sent out, thereby preventing any misalignment of the stitches.

In the embodiment device having the above structure, when the fabrics 3, 3 are placed on the support body 1.2, the fabrics 3, 3 are placed on the support body 1°217.
) Since it is rotatably supported by a pair of support rollers la, lb, 2a, and 2b, the fabric 3.3 is rotated so that the respective edges hang down, and these are aligned to guide rollers 4 and 5.
It is possible to connect and hold it by using the above-described method and set it in the sewing section 21 of the overlock sewing machine 20.

Once the above-mentioned settings are performed, sewing and joining will be performed automatically just by turning on the power. That is, when the overlock sewing machine 20 is driven and sewing starts, the cart 8 moves in synchronization with the feed pitch of the sewing machine 20, and, contrary to existing sewing machines,
The sewing machine 20 moves while the fabrics 3, 3 are fixed. Therefore, since the fabric 3.3 is hung and fixed with its edges aligned, no work is required during the sewing process once the edges of the fabric 3.3 are aligned. . Further, since the feed 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 hanging fabrics 3.3.

Note that the present invention is not limited to the above embodiments,
Of course, various embodiments can be considered without departing from the scope of the claims. For example, synchronization of the feed pitch of the sewing machine 20 and the movement pitch of the trolley 8 can be achieved by mechanically using a transmission mechanism for one drive source. Alternatively, these mechanisms may be implemented 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 parts are allowed to hang down, and both ends are The edges are 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 edges of the fabric, and once the edges of the fabric are Once these are aligned, there is no need to make corrections according to the sewing work as in the past, and sewing can be performed automatically, resulting in extremely good workability and highly efficient sewing.

[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. 1.2...Fabric support 3...Fabric 6...Movement rail 8...Dolly 20...Overlock sewing machine 21...Sewing section Patent applicant Agent of Nakao Sewing Machine Co., Ltd.
Patent Attorney Takashi Suzue - Procedural Amendment Blind Action) November 8, 1985 1, Indication of Case Patent Application No. 170522/1982 2, Title of Invention Method and Apparatus for Sewing Long Fabrics 3, Make Amendments Relationship with the Patent case: Applicant Nakao Sewing Machine Co., Ltd. 4, Agent

Claims (2)

[Claims] (1) A method of sewing and joining the edges of two elongated fabrics using an overlock sewing machine, in which both elongated fabrics are held parallel to each other above, and both elongated fabrics are held parallel to each other. The end edges are made 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 to separate the two elongated shapes. A method for sewing long pieces of fabric, characterized in that the edges of the fabric are sewn. (2) A device for sewing and joining the edges of two elongated pieces of fabric using an overlock sewing machine, including a fabric support that holds both of the elongated pieces of fabric upward in parallel; and this fabric support. A moving rail installed below the edges of both long fabrics hanging from the sewing machine, and a trolley that moves along the rails in synchronization with the feed pitch of the sewing machine.
and an overlock sewing machine provided on the trolley and having a sewing section for sewing the end edges of both hanging materials along the width direction thereof. .