JPS6243708B2 - - 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 invention relates to a fabric seaming device.

(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.

In addition, this type of overlock sewing machine feeds the fabric by pinching the edges of the fabric stacked one above the other using a presser plate on the upper side and a feed mechanism with teeth on the lower side that contacts the fabric. Because I'm going
There is a problem in that the edge of the lower fabric inevitably has to be fed more than the edge of the upper fabric, causing misalignment of the seams at these edges.
It required considerable skill and skill to sew the edges of the fabric to each other so that such seams would not deviate.

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. To provide a sewing and splicing device for long pieces of fabric, which is capable of sewing and splicing long pieces of fabric, and can effectively prevent seaming.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a fabric support that holds both elongated fabrics parallel to each other upward, and both elongated fabrics that are suspended from the fabric support. a moving rail installed at a position below the edge of the shaped fabric; a trolley for moving along this rail in synchronization with the feed pitch of the sewing machine; has a sewing section for sewing the edge portions of the cloth along its width direction, and is provided with a feeding mechanism on both left and right sides of the sewing portion for feeding out the edge portions of both hanging cloths in a direction opposite to the traveling direction of the cart. It is equipped with an overlock 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 are sewn by the overlock sewing machine located at the lower position. When the sewing machine is driven and the trolley is moved,
The sewing machine is moved by a trolley in synchronization with the feed pitch of the sewing machine, and the feed mechanism is provided on both the left and right sides, so that the edges of both fabrics are automatically aligned without any misalignment. Sewn together.

(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. A pair of guide rollers 4 and 5 provided below the supports 1 and 2 cause the fabrics 3 and 3 rotatably supported by the supports 1 and 2 to be 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 24 and 25 disposed in the sewing section 2
They are arranged on both left and right sides of the edges of both fabrics 3, 3 to be inserted into 1, and as shown in Fig. 3,
The left and right feeding teeth 24a, 25a simultaneously pinch the edges of the fabrics 3, 3 and feed them in the opposite direction to the traveling direction P of the cart 8.

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.
Since it is rotatably supported by a and 2b, the 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.
Since feed mechanisms 24 and 25 are provided on both left and right sides of the sewing section 21 of the sewing machine 20,
No stitching occurs at the end edges of both 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 long fabric sewing device of the present invention, two pieces of fabric to be sewn are held in parallel, their edge portions are allowed to hang down, and both edge portions are 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 edges of the fabric, and once the edges of the fabric are aligned, Once done, there is no need to make corrections according to the sewing work as in the past,
Can be sewn automatically. Therefore, the workability is extremely good and sewing can proceed with high efficiency.

Furthermore, the edges of both fabrics are suspended under the same conditions, and the feeding mechanism that feeds out the fabric while pinching it is also installed on both the left and right sides under the same conditions. It is possible to effectively prevent the sewing of the edges of the fabrics, and the edges of both fabrics can be accurately sewn together without requiring any special skill or skill.

[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, 3... Fabric, 6... Moving rail, 8... Dolly, 20... Overlock sewing machine, 21... Sewing section, 24, 25... Feeding mechanism.

Claims (1)

[Claims] 1 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 below the edge portions of both long pieces of fabric; a cart for moving along the rails in synchronization with the feed pitch of the sewing machine; It has a sewing part for sewing the edges of both hanging fabrics along the width direction thereof, and on both left and right sides of the sewing part, the edge parts of both hanging fabrics are sewn in the direction opposite to the traveling direction of the trolley. What is claimed is: 1. A device for sewing and splicing long pieces of fabric, comprising: an overlock sewing machine equipped with a feeding mechanism.