JPS6232996A - 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 dyeing two pieces of fabric, 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 surface that contacts the fabric on the lower side. Therefore, there is a problem that the edge of the lower fabric is fed more than the edge of the upper fabric, causing misalignment of the stitches at the edge of these fabrics. It required a great deal of skill and skill to sew the edges of the fabric to each other in a way that would prevent the occurrence of blemishes.

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 length fabrics which can be sewn and spliced to each other and can effectively prevent 1M.

(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 below the edge of the shaped fabric; a trolley that moves along the rail in synchronization with the feed pitch of the sewing machine; and a trolley provided with the hanging fabric. It has a sewing part for sewing the edge part of the fabric along the width direction thereof, and a feeding mechanism is provided on both left and right sides of the sewing part to send out the edge part of both hanging fabrics in a direction opposite to the traveling direction of the trolley. 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 to allow sewing on the overlock sewing machine at the lower position. When the sewing machine is inserted into the section, and then the sewing machine is driven and the trolley is moved, the sewing machine is moved by the trolley in synchronization with the feed pitch of the sewing machine. , the edges of both fabrics are automatically joined by M in a state where they are aligned without causing any seams.

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

Fig. 1 shows a front view, and Fig. 2 shows a cut-away right side view. 1.2 shows one pair of support rollers la, lb, respectively.
, 2a and 2b, the fabric 3 wound into a roll is held in a horizontal position and in parallel with a predetermined interval.

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

6 indicates a moving rail fixed on the support base 7 along the overlapping edges of both fabrics 3.3, and this rail 6
The wheels 9 of the moving trolley 8 are placed on top of the guide plate 10, which projects horizontally from the lower part of the rail 8. A pair of guide rollers 13.13 are pinched and rolled, and the cart 8 is stably moved on the rail B 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 storage board 11, and the rotation of the motor 14 serving as the drive source at the bottom is transmitted to the continuously variable transmission IB by a chain or belt 15. The rotation of the machine 1B is changed direction via a bevel gear (not shown) and transmitted to the reducer 17 of 1780. A sprocket 18 is pivotally attached to this reducer 17, and this sprocket 18 is engaged with a chain 19 stretched below the rail 6, so that the trolley 8 is rotated by the rotational drive of the motor 14. is adapted to move along the rail 6.

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 mechanisms 24 and 25 disposed in the sewing section 21 of this overlock sewing machine are
As shown in FIG. It is designed to feed the parts in a direction opposite to the traveling direction P of the trolley 8 while holding the parts therein.

In the embodiment apparatus having the above structure, when the fabrics 3, 3 are respectively placed on the support 1.2, the fabrics 3, 3 are placed on the support 1.2.

Since the fabrics 3, 3 are rotatably supported by pairs of support rollers la, lb, 2a, and 2b of 2, the fabrics 3, 3 are rotated so that their respective edges hang down, and these are aligned and guided by the guide rollers 4, 3.
5, and can be set 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,
Raw t#! 3. The sewing machine 20 moves while 3 is in a fixed state. Therefore, since the fabrics 3 and 3 are suspended and fixed with their respective edges aligned, no work is required during the sewing process once the edges of the fabrics 3 and 3 are aligned. . Further, since the feed mechanisms 24 and 25 are provided on both the left and right sides of the sewing section 21 of the sewing machine 20, there is no possibility of sewing 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 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 the both edge portions are Since the structure is such that the sewing machine is moved in synchronization with the feed pitch of the sewing machine, 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, workability is extremely good,
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 two fabrics, and the edges of both fabrics can be accurately sewn together without requiring any special technique 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. 1.2...Fabric support 3...Fabric 6...Movement rail 8...Dolly 20...Overlock sewing machine 21...Sewing section 24.25...Feeding mechanism Patent applicant Representative of Nakao Sewing Machine Co., Ltd.
Patent Attorney Takashi Suzue - Procedural Amendment Blind Action) November 8, 1985 1, Indication of Case Patent Application No. 170523/1988 2, Title of Invention: Sewing device for long fabric 3, Person making amendment case Relationship: Patent applicant Nakao Sewing Machine Co., Ltd. 4; Agent address: 7 Umeda Tatsumi Building, 8-1 Kamiyama-cho, Kita-ku, Osaka;
Contents of correction

Claims (1)

[Claims] (1) A device for sewing and joining the edges of two elongated fabrics using an overlock sewing machine, including a fabric support that holds both of the elongated fabrics parallel to each other above, 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.
The trolley is provided with a sewing part that sews the edge parts of both the hanging fabrics along the width direction thereof, and the edge parts of the hanging fabrics are sewn on both left and right sides of the sewing part. What is claimed is: 1. A device for sewing long pieces of fabric, comprising: an overlock sewing machine equipped with a feed mechanism that feeds in a direction opposite to the direction of movement.