Panel strip seamer

Abstract

The invention performs smooth folding-in operation of a binding cloth without regard to the change of a cloth thickness. The large presser feeding mechanism 20 of a binding sewing machine 10 is provided with a fold-in apparatus 60 for folding back the binding cloth N to the upper surface side of the bottom plate part 31 of a binder 30. The fold-in apparatus 60 is provided with: a pair of fold-in plates 61 arranged over the bottom plate part 31 on both of the right and left sides sandwiching the standing plate part 32 of the binder 30; a fold-in cylinder 62 for folding the binding cloth N along the upper surface of the bottom plate part 31 by spacing apart and moving the respective fold-in plates 61 away from and toward the standing plate part 32; a pair of support members 63 for supporting the respective fold-in plates 61 through the fold-in cylinder 62 with the distal end parts of them swingable vertically; and a coil spring 64 for pressurizing the distal end parts of the fold-in plates 61 downward. That is, the distal end parts of the fold-in plates 61 can be evacuated upward and has a structure of being biased downward, so that smooth folding-in of the binding cloth N can be performed without regard to the cloth thickness from a thin cloth to a thick cloth.

Description

technical field [0001] The present invention relates to a molding sewing machine for molding molding. Background technique [0002] A panel sewing machine is a sewing machine for forming a pocket by, for example, sewing panel fabric on a body material of clothes, and forming predetermined incisions on the body material and the panel fabric (for example, refer to Patent Document 1). [0003] That is, in the sewing process of this panel sewing machine, on the upper surface of the needle plate, the panel fabric is superimposed on the body fabric, and the panel composed of the bottom plate portion and the vertical plate portion vertically erected on it is pressed down from above. edger. Then, respectively fold the two ends of the panel cloth from the top of the bottom plate of the binding device along the respective planes of the vertical plate, and keep the folded state, and then move in one direction along the above-mentioned folding line by the cloth feeding mechanism. Conv...

AI Technical Summary

Problems solved by technology

[0005] However, in the device for folding the panel cloth provided in the conventional panel sewing machine described in the above-mentioned Patent Document 1, such as Figure 9 As shown, since the tuck-in plate 202 in which the panel cloth is folded is moved horizontally along the upper surface of the bottom plate portion 201a of the binder 201, the installation height and the operating direction are fixed, thereby The problem is that when the thickness of the strip cloth exceeds the set thickness, if Figure 10 As shown, due to the thickness and rigidity of the fabric, sometimes the tuck-in plate 202 stops midway and the tuck-in operation is interrupted.

[0006] In addition, in order to solve the above-mentioned problems, the following method can be adopted, that is, the rubber 203 attached to the underside of the large presser foot device 200 with the built-in fold-in plate 202 is replaced, and the rubber 203 is replaced with a thick panel cloth (hereinafter referred to as Thick cloth) corresponding to the thickness of the rubber, when the tuck-in plate 202 moves, the lower surface of the tuck-in plate 202 moves along the upper surface of the bottom plate portion 201a at a position higher than the upper surface of the folded thick cloth, thereby It is used to tuck in thick panel cloth, but in actual panel sewing, the thickness of the panel fabric changes frequently according to different sewing batches, so it is used to fold in thick When the thin panel cloth is folded in the rubber 203 of the panel cloth, it is as follows Figure 11 As shown, an unnecessary gap is formed between the tuck-in plate 202 and the panel cloth, and the tuck-in amount is unstable due to the slack of the cloth.

[0007] Therefore, in order to realize the correspondence with the change of the cloth thickness of the panel cloth and the stabilization of the folding amount, it is necessary to select and replace the rubber 203 with an appropriate thickness corresponding to the cloth thickness, but this brings about the increase of the cost and the loss due to the replacement work. The problem of low working efficiency caused by the device

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