JP6846716B2 - How to fold and sew a sword - Google Patents

Description

The present invention relates to a sword rag fold sewing method in which a sword rag is folded into a cuff notch of a sleeve cloth and sewn, and more specifically, a sword rag fold sewn method in which a sword rag is sewn on the sleeve cloth.

As shown in Patent Document 1, the applicant desires a sword rag cloth below the sewing machine head on the installation table in the sewing machine main body and directly below the sewing machine head on the work table provided so as to be movable in the XY directions. A folding device that folds into the shape of the sword rag is provided, and after folding the sword rag cloth set on the work table into the sword rag, the sleeve cloth is overlapped on the sword rag and both are sewn together. We proposed an automatic sewing machine for sword rags.

In the above automatic sword rag sewing device, first, the sword rag cloth set on the work table is folded into the sword rag by the folding device, and then the sleeve cloth is overlapped with the folded sword rag. It is necessary to sew in a state, and it takes time and effort for each alignment work, and there is a problem that the sewing work efficiency is poor.

In addition, the sword rag that is folded with the cloth surface facing down is sewn with the sleeve cloth with the cloth surface facing down, so that it is sewn on the surface of the sword rag. Has a problem that the piercing mark (protruding mark) appears due to the piercing of the sewing machine needle, or the cloth fiber at the piercing part is pulled out to the front side of the cloth, resulting in poor appearance quality.

Furthermore, when sewing various patterned clothing such as a checkered pattern or a striped pattern, it is necessary to match the pattern of the sword rag and the sleeve cloth, but the sword cloth is laid on top of the sword rag and sewn from the back of the cloth. In some cases, it is difficult to visually recognize each pattern and match the patterns, and it takes time and effort to sew the patterns so that they match each other, and there is a problem that the sewing work efficiency deteriorates. ing.

Japanese Unexamined Patent Publication No. 11-319353 (Patent No. 3568187)

The problem to be solved is that the sword rag must be folded first to make the sword rag, and then the sleeve cloth must be sewn on top of the sword rag. There is a point that the sewing work efficiency is poor.

In addition, when the sleeve cloth is sewn on the back of the sword rag, a piercing mark (protruding mark) appears on the cloth surface of the sword rag sewn by the sewing machine needle, and the cloth fiber at the piercing part is on the cloth front side. The point is that the appearance quality deteriorates because it is pulled out to.

Furthermore, in the case of patterned clothing, when the sleeve cloth is overlaid on the sword rag cloth and sewn from the back of the cloth, it is difficult to visually recognize each pattern and match the patterns with each other. It takes time and effort to surely match the patterns and sew, and the sewing work efficiency deteriorates.

In the present invention, a sword rag fold-in unit is used to fold a sword rag cloth consisting of a sword rag body portion and a back-folded portion into a sword rag having a desired shape, and then the sword rag and sleeve cloth are sewn together by a sewing machine body. In the wearing method, 1 sleeve cuts are formed on the main body table, and the sleeve cloth is set so that the cloth surface faces upward. The back folds are overlapped on one end edge and the back folds are overlapped so that they are located below the other end edge of the cuff notch. Press against the other end edge of the cuff notch and press it against the main body table surface. 4 Turn each side edge of the sword rag body folded back by the sword rag folding unit inward to form a sword rag with the required width. 5 Pull out the template from the folded sword rag. After that, a holding plate having a needle guide groove extending along the side edge of the sword rag is pressed against the sleeve cloth and the sword rag overlaid on the sleeve cloth and pressed against the main body table surface. 6 Sewing machine main body side The presser plate moves the sleeve cloth and sword rag in the pressed state to the sewing machine body side. 7 For the sleeve cloth and sword rag that move with the two-dimensional movement of the presser plate in the left-right direction and the front-back direction, the sewing machine body The most important feature is that the sewing needle is moved along the needle guide groove and pierced from the front side of the sword rag, and the sword rag is sewn on the sleeve cloth. To do.

In the present invention, since the sword rag is folded into the sword rag in a state where the sword rag is overlapped with the sleeve cloth and then sewn to the sleeve cloth, the alignment work is facilitated and the sewing work is efficiently performed. be able to. In addition, by sewing the sword rag to the sleeve cloth, it is possible to prevent the piercing marks of the sewing machine needle from appearing on the sword rag's cloth surface and the cloth fibers at the piercing point from being pulled out to the cloth front side, which is good. Excellent sewing quality can be obtained. Further, even in the case of patterned clothing, the pattern matching work of the sword rag cloth and the sleeve cloth can be easily performed, and the sewing work can be efficiently performed.

It is a front view of the sword rag folding sewing device. It is a partially omitted plan view of the sword rag folding sewing device. It is explanatory drawing which enlarges and shows the part A of FIG. It is explanatory drawing which enlarges and shows the B part of FIG. It is explanatory drawing which shows the set state of the sleeve cloth. It is explanatory drawing which shows the set state of the sword rag cloth with respect to the sleeve cloth. FIG. 6 is a cross-sectional view taken along the line CC of FIG. It is sectional drawing which shows the state which pressed the sleeve cloth and the sword rag cloth set by the template. It is sectional drawing which shows the folded state of the sword rag main body part. It is explanatory drawing which shows the sword rag which the side edge was folded back. FIG. 10 is a cross-sectional view taken along the line DD of FIG. It is explanatory drawing which shows the pressing state of the sleeve cloth and the sword rag by the holding plate. It is explanatory drawing which shows the hand movement state of the sewing machine needle at the time of sewing. It is explanatory drawing which shows the rotating state of the bent part at the time of double sewing a part of a sword rag. It is explanatory drawing which shows the cutting state of the patterned sword rag cloth. It is explanatory drawing which shows the superposition state of the patterned sword rag cloth with respect to the patterned sleeve cloth.

The sleeve cloth is set so that the front of the cloth faces up on the main body table, while the front of the sword is facing down, and the main body of the sword is overlapped with one end edge of the cuff notch and the back. The folded part is overlapped with the other end edge of the cuff notch located on the lower side, and the sword rag body part of the sword rag cloth is folded back to the back folded part side with the template pressed against the other end edge of the cuff notch. The best form is to fold the side edges with the cloth surface facing up, shape it into a sword rag, and then sew it to the sleeve cloth.

Hereinafter, examples of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 4, the main body table 3 of the sword rag folding sewing device 1 embodying the method of the present invention is elongated in the left-right direction shown, and the sword rag folding portion 5 is on the right side of the drawing. The sewing machine main body 7 is arranged on the left side of the drawing. A large number of suction holes 9 are provided in the main body table 3 of the sword rag folding portion 5, and these suction holes 9 are connected to a negative pressure generator (not shown). The longitudinal direction of the main body table 3 will be described as the left-right direction, and the longitudinal orthogonal direction will be described as the front-rear direction.

Further, the left and right sides of the main body table 3 of the sword rag folding portion 5 provided with a large number of suction holes 9 extend in the front-rear direction of the main body table 3 and are formed on an inclined surface whose opposite side gradually decreases inward. The pair of material set rulers 11 are arranged at intervals corresponding to the width of the sword rag 15 described later (about twice the width of the lower rag cloth described later), and the main body table 3 between the pair of material set rulers 11 is sword rag. It is set in the folding work area of the cloth 15a.

The pair of material set rulers 11 are separated from the folding work area when the sleeve cloth 13 and the sword rag cloth 15 are set in the folding work area, and from the folding work area when the sword rag cloth 15 is folded. Moved forward.

Then, when the sleeve cloth 13 and the sword rag cloth 15 described later are set on the main body table 3 corresponding to the pair of material set rulers 11, these sleeve cloth 13 and the sword rag cloth 15 are negative from the suction hole 9. Negative pressure is attracted to the main body table 3 by the pressure.

Further, a center plate 17 extending in the front-rear direction is provided on the main body table 3 corresponding to the intermediate portion between the pair of material set rulers 11 so as to be able to appear and disappear, and the center plate 17 is connected to an air cylinder or the like. 1 The vertical movement member (not shown) raises and lowers the upper end surface between a lower position where the upper end surface coincides with the three main body tables and an upper position where the upper end surface protrudes from the main body table three surfaces to a required height.

The first and second traveling bodies (not shown) are supported so as to reciprocate in the front-rear direction behind the main body table 3 according to the pair of material set rulers 11, and the first and second traveling bodies are supported so as to reciprocate in the front-rear direction, respectively. The first and second moving members (not shown) connected to the above individually reciprocate between the rear standby position and the front folding position. The first and second moving members may be any of a rack and pinion mechanism, a feed screw mechanism, a timing belt mechanism, and the like connected to an electric motor such as an air cylinder and a numerically controllable servomotor.

The first traveling body is provided with a second vertical moving member (not shown) such as an air cylinder having an operating shaft in the vertical direction, and the operating shaft of the second vertical moving member extends in the front-rear direction. A base end portion of an outer-shaped template 19 whose free end side coincides with the sword rag 15 is attached. As the first traveling body moves, the free end of the template 19 is reciprocated between a rear position separated from the folding work area and a front position located in the folding work area, and moves to the front position. When it is moved, it is moved up and down between an upper position separated from the main body table 3 surface and a lower position close to the main body table 3 surface of the folding work area by the operation of the second vertical movement member. Further, a large number of holes 19a are formed in the template 19 along the outer edge thereof, and when the sword rag cloth 15a superimposed on the sleeve cloth 13 is pressed, the negative pressure from the suction holes 9 causes these cloths 13 to be formed.・ 15a can be adsorbed.

The base end portion of the upper and lower frames 21 having a predetermined vertical length is fixed to the second traveling body, and is moved between the rear standby position and the front folding position as the second traveling body moves in the front-rear direction. To. A first elevating body 23 is movably supported on one side surface of the upper and lower frames, and the first elevating body 23 is moved up and down by a connected third vertical moving member (not shown). If the third vertical movement member is any of a rack and pinion mechanism, a feed screw mechanism, a timing belt mechanism, etc. connected to an electric motor such as a servomotor that can be numerically controlled in addition to an air cylinder, the first elevating body. The 23 can be raised and lowered at any height.

The base end portion of the mounting plate 25 extending in the front-rear direction is fixed to the first elevating body 23, and the sword rag folding unit 27 of the sword rag cloth 15a is provided downward on the mounting plate 25. The sword rag folding unit 27 is moved between the folding work area and the standby position behind the folding work area as the second traveling body moves, and is above the folding work area as the first elevating body 23 moves. Moved between position and down position.

When the third vertical movement member is an air cylinder, the mounting plate 25 is attached to the first lifting body 23 via another vertical movement member such as an air cylinder, and the sword rag folding unit 27 is divided into two stages. It can be raised and lowered at the position.

The configuration of the sword rag folding unit 27 has the same configuration as the "folding device" disclosed in Japanese Patent Application Laid-Open No. 11-319353 (Japanese Patent No. 3568187). Although detailed explanations and drawings are omitted by referring to the matters described in 0008-0013 as they are, they are operated by an air cylinder or the like corresponding to each open folded side of the folded and overlapped sword rag cloth 15a. Each folded piece is arranged, and the corresponding folded side is folded inward by the operating folded piece to form the sword rag 15.

"In the folding device 7, as shown in FIGS. 2 and 3, a frame plate 30 and a frame detachably arranged directly below the sewing machine head 4 on the tip side of the notch 8 in the work table 6 and a frame. A plurality of folding plates 31, 31a ... Arranged freely on the outer peripheral side of the plate 30, a template 32 for folding the outer peripheral portion of the sword rag cloth W into a predetermined shape, the set sword rag cloth W, and the sword rag cloth W. It is composed of a pressing plate 33 for the work table 6 side of the sleeve cloth B.
Further, as shown in FIGS. 5 and 6, the frame plate 30 is formed by laminating two plate materials, and is an upper layer plate having a notch 34 into which the tip of the template 32 is fitted. It is composed of 30a and a lower layer plate 30b having a needle groove 35 formed therein, and the notch 34 in the upper layer plate 30a and the outer peripheral edge portion of the needle groove 35 in the lower layer plate 30b are made to coincide with each other. Further, the needle groove 35 substantially matches the tip portion of the template 32, and is behind both side portions of the opening 35a formed in a vertically long home base shape from the tip member 71 of the holding plate 33, which will be described later. Notches 35b and 35c are formed along both side portions of the template 32. Further, mounting pieces 38, 38a are projected outward on both sides of the upper surface on the rear side of the upper layer plate 30a, and cuts 39, 39a are formed in the front edges of the mounting pieces 38, 38a, and the cuts 39, Screws, bolts, etc. inserted through the inside of 39a from above are screwed into the work table 6 to fix the frame plate 30 to the work table 6.
Further, the folding plates 31, 31a ... Are arranged so as to fold the tip portion and both side portions of the sword rag cloth W.
In the first folding plate 31, one hypotenuse portion T1 of the tip portion of the sword rag P is folded and formed, and the needle groove 35 advances and retreats with respect to one hypotenuse portion 36 on the tip side in the outer peripheral edge portion. It is free. Further, the advancing / retreating direction of the first folding plate 31 is inclined by a predetermined angle with respect to the longitudinal direction of the needle groove 35, and both side portions of the first folding plate 31 are one hypotenuse portion in the outer peripheral circular edge portion of the needle groove 35. It is designed to pass slightly inside from both ends of 36. Further, it is desirable that the folding side 42 at the tip of the first folding plate 31 is formed so that the distance from the one oblique side portion 36 of the needle groove 35 gradually expands toward the tip side.
In the second folding plate 31a, the other oblique side portion T2 of the tip portion of the sword rag P is folded and formed and arranged in an extension line of the needle groove 35, and the advancing / retreating direction of the needle groove 35 is the needle groove 35. It is parallel to the longitudinal direction. Further, the width of the second folding plate 31a is the same as or slightly narrower than that of the template 32. Further, a notch 40 that expands forward at the tip of the second folding plate 31a is formed so that the innermost part of the notch 40 is closer to the first folding plate 31 side from the center of the second folding plate 31a. However, projecting pieces 41 and 41a are formed on both sides of the notch 40. Specifically, as shown in FIG. 2, a relief notch 40b is formed on the inner end side of the hypotenuse portion on the second folding plate 31a side of the V-shaped notch 40a to form the notch 40. Further, one of the protruding pieces 41 has a tip shape and has a folding side 42a extending from the tip thereof to the innermost part of the notch 40. Further, it is desirable that the folding side 42a is formed so that the distance between the needle groove 35 and the other oblique side portion 36a gradually expands toward the tip end side. Further, the other protruding piece 41a overlaps the first folding plate 31.
In the third and fourth folding plates 31b and 31c, both side portions T3 and T4 of the sword rag P are folded and formed and arranged on both sides of the needle groove 35, and the advancing / retreating direction thereof is the needle groove. It is perpendicular to the longitudinal direction of 35, and the folding sides 42c and 42d at the tip thereof are parallel to the side sides 37 and 37a of the needle groove 35. Further, the ruler plates 90 and 90a for aligning one side edge of the sword rag cloth W above the third and fourth folding plates 31b and 31c are placed in the advancing and retreating directions of the third and fourth folding plates 31b and 31c. The slide can be fixed freely. It should be noted that the overlapping portion of the first folding plate 31 and the second folding plate 31a and the overlapping portion of the second folding plate 31a and the third and fourth folding plates 31b and 31c are such that the latter is on top. A step portion 43 having a lower tip side is formed in the middle portion of the first folding plate 31, and step portions 44 and 44a having a higher portion are formed at the corners of the third and fourth folding plates 31b and 31c, respectively. There is. Further, the cylinders 45, 45a ... Are arranged on the work table 6 below the folding plates 31, 31a ... So as to expand and contract in the advancing and retreating directions of the folding plates 31, 31a ... The rods 46, 46a ... Are fixed to the folding plates 31, 31a .... Further, the cylinders 45, 45a ... Are installed below the cover plate 6a provided above the work table 6. Then, the tips of the folding plates 31, 31a ... Are arranged outside the outer edge of the needle groove 35 in the initial state, and are controlled to advance and retreat so as to advance to the inside from the inner edge of the needle groove 35. "

A guide shaft 29 having an axis in the vertical direction is provided on the other side surface of the upper and lower frame 21, and the second elevating body 31 is supported on the guide shaft 29 so as to be movable in the vertical direction. The second elevating body 31 is elevated and lowered between the upper part and the lower part of the upper and lower frame 21 by a fourth vertical moving member (not shown) connected. The second elevating body 31 is provided with a pair of left and right air injection members 33 extending in the front-rear direction and provided with a large number of injection ports so as to be located on the left and right sides of the sword rag folding unit 27. When each air injection member 33 is moved downward, compressed air is discharged from the injection port in the opposite directions, and the side side of the sword rag cloth 15a is folded back inward.

Each air injection member 33 is selectively switched according to the right sleeve cloth or the left sleeve cloth on which the sword rag is sewn, and is set so that compressed air can be injected by either one.

Behind the main body table 3, left and right frames 35 extending in the left-right direction and having a length extending over the sewing position of the sword rag folding portion 5 and the sewing machine main body 7 are provided, and the left and right frames 35 are provided with a third traveling body 37. Is supported so that it can be reciprocated in the left-right direction. The third traveling body 37 is moved between the folding work area on the right side of the drawing and the sewing area on the left side of the drawing by a connected fourth moving member (not shown). The fourth moving member includes a rack and pinion mechanism, a feed screw mechanism, a timing belt mechanism, and the like connected to an electric motor such as a servomotor that can be numerically controlled.

The third traveling body 37 is provided with a front-rear frame (not shown) extending in the front-rear direction, and the front-rear frame is supported by the fourth traveling body 37 so as to be movable in the front-rear direction. The fourth traveling body 37 is connected to a fifth moving member (not shown) including a rack and pinion mechanism, a feed screw mechanism, a timing belt mechanism, etc., which are connected to an electric motor such as a numerically controllable servomotor. The fifth moving member moves the sword rag 15 in the front-rear direction at a distance corresponding to the sewing length in the front-rear direction. As a result, the fourth traveling body 37 is two-dimensionally moved in the left-right direction and the front-rear direction in cooperation with the third traveling body 37 that moves in the left-right direction at the sewing position.

The fourth traveling body 37 is provided with a fifth upper and lower member 39 such as an air cylinder, and the base end portion of the pressing plate 41 is detachably attached to the material pressing member 39. The presser plate 41 is formed with a needle guide groove 43 having a predetermined width for guiding the sewing machine needle 7a along the outer shape of the sword rag 15 at the center thereof, and the outer sleeve cloth presser portion 41a and the inner sword rag presser portion 41b are formed. Consists of.

An elastic body 41e such as a sponge or an elastomer having a high coefficient of friction for pressing the overlapped sleeve portion 13 and the sword rag 15 is attached to the lower surface of the holding plate 41, and the overlapped sleeve portion 13 and the sword rag 15 are attached. The 15 is reliably transferred from the sword-battered folding portion 5 to the sewing machine main body 7 side and two-dimensional movement on the sewing machine main body 7 side.

The sword rag holding portion 41b has a corresponding shape of the sword rag 15, and the base end portion thereof is integrated with the sleeve cloth holding portion 41a to press the main body portion of the sword rag 15 and the main body pressing portion 41c. The tip pressing portion 41d, which is arranged on the tip side of the 41c via the tip side needle guide grooves 43a at predetermined intervals and presses the triangular folded portion of the sword rag 15, and the main body pressing portion 41c and the tip by the bending portion 45a of the tip portion. It is composed of a connecting shaft 45 which connects the pressing portion 41d, is connected to a rotating member (not shown), is rotatable, and has a bent portion 45a at the tip portion.

Specifically, the connecting shaft 45 is rotatably supported on the upper surface side of the main body pressing portion 41c, the bent portion 45a straddles the tip side needle guide groove 43a, and the tip end side thereof is rotatable to the tip pressing portion 41d. When the sewing machine needle moves along the tip side needle guide groove 43a, the bent portion 45a is rotated in a direction that does not interfere with the movement of the sewing machine needle.

In addition, when the sleeve cloth 13 and the sword rag cloth 15 are set in the sword rag fold portion 5 in the main body frame (not shown) of the sword rag fold sewing device 1 corresponding to the upper part of the sword rag fold portion 5, the main body Marking means (not shown) is provided to indicate the set position by projecting linear or cross-shaped marking light (laser light) onto the three table surfaces, the sleeve cloth 13 and the sword rag cloth 15 to be placed. ..

Further, in the sleeve cloth 13, a cuff notch is formed at a place where the sword rag 15 is sewn, and a lower rag cloth (lower rag cloth) 13a is sewn in advance on one edge of the cuff cut. Further, the sword rag cloth 15a is composed of a sword rag body portion 15b and a back fold portion 15c having substantially the same width in the longitudinal orthogonal direction, and the sword rag body portion 15b has a width wider than the width of the template 19 and the back fold portion 15c. The outer edge is set to a length that matches the side of the sword rag 15.

Next, a method of automatically folding and sewing the sword rag 15 to the sleeve cloth 13 by the sword rag fold and sewn device 1 will be described.

1 The sleeve cloth 13 is placed on the main body table 3 corresponding to the sword rag folding portion 5, and the cuff notch is along the center plate 17 with the cloth table facing upward, and the left side of the sewn lower rag cloth 13a is shown. Set so that the edge is along the edge of the material set ruler 11 located on the left side of the drawing. (See Fig. 5)
Next, the sword rag cloth 15a in the unfolded state with the cloth surface facing downward is placed on the cuff cut peripheral edge on the upper surface of the sleeve cloth 13, and the back fold portion is placed on the side edge of the sleeve cloth 13 where the lower rag cloth 13a is not sewn. The sleeve cloth 13 and the sword rag cloth 15a set after overlapping and setting the side edge of 15c on the material set ruler 11 on the right side of the drawing so as to be supported by the required width (folding width) are placed on the three main body tables. Negative pressure is adsorbed on the cloth.

In the above state, the left side edge of the sword rag body portion 15b and the right edge of the sword rag body portion 15c of the sword rag cloth 15a are located on the respective material set rulers 11, so that they are negative with respect to the main body table 3. Pressure adsorption is regulated.

Further, when the sleeve cloth 13 and the sword rag cloth 15a are set on the three surfaces of the main body table, the sleeve cloth 13 is exposed to the linear and cross-shaped marking light projected on the three surfaces of the main body table from the marking means. Alignment is possible by setting the sword rag cloth 15a so that a predetermined portion is positioned.

2 In the above state, the side edge of the back folding portion 15c located on the material set ruler 11 on the right side of the drawing is folded inward along the material set ruler 11 and adsorbed under negative pressure on the main body table 3, and then lowered. The sleeve cloth 13 on the side where the rag cloth 13a was not sewn (the place where the back folded portion 15c of the sword rag cloth 15a was overlapped) was folded forward and overlapped at the place, and the side edge was folded back. After the back-folded portion 15c is directly adsorbed to the three surfaces of the main body table under negative pressure, the folded sleeve cloth 13 is returned to its original position and superposed on the back-folded portion 15c whose side edge is folded back, and the main body table 3 Negative pressure is adsorbed on the top. (See FIGS. 6 and 7)

When the sleeve cloth 13 is set on the main body table 3 in 1 above, the left edge of the cuff notch on which the lower rag cloth 15a is sewn is aligned with the center plate 17 and attracted, and the lower rag cloth 15a is attached. The right edge of the cuff notch that is not sewn is folded forward, and in this state, the sword rag cloth 15a is overlapped with the upper surface of the sleeve cloth 13. At that time, the left edge of the folded portion 15c of the sword rag cloth 15a is aligned with the material set ruler 11 on the left side of the drawing, and the right edge of the sword is folded inward along the material set ruler 11 on the right side of the drawing. After forming the crease, the right edge of the cuff cut that is folded forward may be returned to the rear and overlapped with the folded portion 15c of the sword rag cloth 15a.

3 In the above state, the sword rag cloth 15a set by moving the template 19 forward and entering the folded work area and then moving downward is sewn to one side edge of the cuff notch. The sword rag body portion 15b corresponding to the rag cloth 13a and the back fold-back portion 15c corresponding to the other side edge of the cuff notch are pressed against each other on the three main body tables. (See Fig. 8)

4 In the above state, the upper and lower frames 21 are moved forward to position the sword rag folding unit 27 and the pair of air injection members 33 above the folding work area, and then the air injection member 33 located on the left side of the drawing is moved downward. After positioning it on the side edge of the sword rag body 15b, compressed air is injected from the air injection member 33 onto the side edge of the sword rag body 15b so that the cloth surface of the sword rag body 15b faces upward. It is folded back on the template 19 which is press-welded to the back-folded portion 15c. At this time, the folded end edge of the sword rag body portion 15b is folded back on the lower rag cloth 13a sewn on the sleeve cloth 13 so as to coincide with the sewn side edge. (See Fig. 9)

5 In the above state, the sword rag folding unit 27 located above the folding work area is moved to a height where it comes into contact with the sword rag main body 15b folded back toward the back folding portion 15c, and the center plate 17 is moved into the main body table 3. Immerse yourself in.

6 In the above state, the sword rag folding unit 27 is operated, and the side edge of the sword rag body 15b on the sleeve cloth 13 on the free end side is folded inward by a predetermined width to form the sword rag 15 and then the template. The 19 is moved backward to be pulled out from the folded sword rag 15, and the sword rag folding unit 27 is moved upward. Further, the material set ruler 11 is moved forward and retracted from the folding work area. (See FIGS. 10 and 11)

The timing of moving the material set ruler 11 forward may be the timing of lowering the sword rag folding unit 27 and bringing it into contact with the sword rag main body 15b folded back toward the back folding portion 15c.

The folding method using the sword rag folding unit 27 is the same as the method using the "folding device" described in Japanese Patent Application Laid-Open No. 11-319353 (Patent No. 3568187). The detailed explanation will be omitted by referring to the explanation paragraph 0019 as it is.

"(3a) The first folding plate 31 is advanced, and the first folding portion W1 in the outer peripheral portion of the sword rag cloth W is folded along one oblique side on the tip end side of the template 32. At that time, the first folding plate 31 is folded. Since the folding plate 31 gradually overlaps the template 32 from the base end side of one of the hypotenuses, the first folding portion W1 is reliably and accurately folded (see FIG. 10).
(3b) The second folding plate 31a is advanced so that the second folding portion W2 in the outer peripheral portion of the sword rag cloth W is along the other oblique side on the tip end side of the template 32. At that time, one protruding piece 41 of the second folding plate 31a gradually overlaps the template 32 from the base end side of the other hypotenuse, and the first folding portion W1 is placed on one side edge of the first folding plate 31. However, since it is located in the vicinity of the other hypotenuse portion of the template 32, the second folding portion W2 does not loosen and does not protrude from the one hypotenuse portion T1 in the sword rag P, and is reliably and accurately folded. .. Further, the second folding plate 31a is advanced to a position where the corner portions of the third and fourth folding plates 31b and 31c overlap above the protruding pieces 41 and 41a (see FIG. 11).
(3c) The third and fourth folding plates 31b and 31c are advanced sequentially or simultaneously, and the third and fourth folding portions W3 and W4 on the outer peripheral portion of the sword rag cloth W are folded along both sides of the template 32. .. Further, since the first and second folding portions W1 and W2 are located parallel to the side edges of the protruding pieces 41 and 41a in the second folding plate 31a near both side edges of the template 32. Since the third and fourth folding parts W3 and W4 are not loosened and are securely held by the protruding pieces 41 and 41a, the sword rag P is folded securely and accurately without protruding from both hypotenuses T1 and T2. (See FIGS. 12 and 13). "

7 In the above state, the presser plate 41 is moved upward in the folding work area in the right direction in the drawing, then moved downward, pressed against the sleeve cloth 13 and the folded sword rag 15 and pressed onto the three main body tables. By doing so, the overlapping state of both is maintained. At this time, the sleeve cloth holding portion 41a of the holding plate 41 is on the upper surface of both side edges of the cuff notch, and the sword rag holding portion 41b is on the upper surface of the sword rag 15 superimposed on the sleeve cloth 13, with a seam allowance left. It is pressed. (See Fig. 12)

8 In the above state, after releasing the suction of the sleeve cloth 13 and the folded sword rag cloth 15 by the main body table 3, the presser plate 41 was moved to the sewing machine main body 7 side in the left direction in the drawing and pressed against the main body table 3 surface. The sleeve cloth 13 and the sword rag cloth 15 are slid and moved to the sewing area of the sewing machine body 7.

9 In the above state, the presser plate 41 is driven two-dimensionally so that the sewing machine needle moves in the needle guide groove 43 and the tip side needle guide groove 43a, and the sewing machine body 7 is driven near the side edge of the sword rag 15. Is sewn in a straight line or an inclined shape from the front side of the cloth, and the sword rag 15 is sewn on the sleeve cloth 13. (See FIG. 13)

When sewing along the tip side needle guide groove 43a, the bent portion 45a may interfere with sewing, but the connecting shaft 45 is rotated so that the bent portion 45a is located on the needle movement direction side. By doing so, the sewing machine needle can be moved along the tip side needle guide groove 43a, and double sewing along the tip side needle guide groove 43a is possible. (See FIG. 14)
Further, when sewing the sleeve cloth 13 and the sword rag 15 by the sewing machine main body 7, the operator can set the sleeve cloth 13 and the sword rag 15a to be sewn next at the sword rag folding portion 5, and sew. Work can be streamlined.
Further, a conventionally known accumulator (not shown) is provided on the side or front of the sewing machine main body 7, and the sleeve cloth 13 on which the sword rag 15 is sewn is hung and integrated to improve the efficiency of the sewing work. Can be done.

In the method of this embodiment, the sword rag cloth 15a can be set on the sleeve cloth 13 while checking the notch in the cuffs, so that the alignment work can be facilitated and the sewing work can be performed efficiently. In addition, by sewing the sword rag to the sleeve cloth, it is possible to prevent the piercing marks of the sewing machine needle from appearing on the sword rag's cloth surface and the cloth fibers at the piercing point from being pulled out to the cloth front side, which is good. Excellent sewing quality can be obtained. Further, even if the clothes are patterned, the pattern matching work of the sword rag cloth and the sleeve cloth can be easily performed, and the sewing work can be efficiently performed.

In the above description, the case where the sword rag 15 is sewn to the illustrated right side edge of the cuff cut in the sleeve cloth 13 has been illustrated, but the sword rag 15 is sewn to the illustrated left edge of the cuff notch in the sleeve cloth 13. In some cases, when the sword rag cloth 15a is set on the upper surface of the sleeve cloth 13, the left edge of the back fold portion 15c of the sword rag cloth 15a is located on the material set ruler 11 on the left side of the drawing. Further, when the sword rag body portion 15b is folded back to the left side in the drawing, it may be folded back by the compressed air injected from the air injection member 33 on the right side in the drawing.

The above explanation has been given by taking the case where the sword rag 15 is sewn on the plain sleeve cloth 13, but when the patterned sleeve cloth and the sword rag are sewn, the sword is sewn according to the pattern of the sleeve cloth. It is necessary to cut the rag cloth. In that case, the pattern of the sword rag and the sword rag can be matched by aligning and cutting the pattern of the sword rag material with respect to the pattern of the sleeve cloth as follows. .. That is, as shown in FIG. 15, for the sleeve cloth whose cloth surface faces upward, the sword rag cloth material whose cloth surface faces upward is used, and the triangular apex t of the sword rag cloth cuts the cuffs of the sleeve cloth (in FIG. 15). (Indicated by a broken line) In a state of being positioned so as to be located on the center line l1, the patterns are matched with each other and then cut along the outer shape of the sword rag. In this case, a folded piece of the sword rag cloth is set on the fold line l2 with an interval d of 1/2 of the sword rag width from the center line l1 to the fold portion side.

As shown in FIG. 16, the sword rag cloth cut as described above has a triangular apex t (center line l1) with the cloth surface facing down with respect to the sleeve cloth with the cloth surface facing up. The patterns of the sleeve cloth and the sword rag can be matched with each other by folding back along the folding line l2 at the above-mentioned interval d from the cuff cut and overlapping.

When positioning the two with the light projected from the marking means when setting the sword rag cloth on the sleeve cloth, the light is projected onto the apex t of the triangle at a distance d from the center line l1. By positioning both, the sleeve cloth to be sewn and the handle of the sword rag can be matched with each other.

1 Sword rag fold sewing device 3 Main body table 5 Sword rag fold part 7 Sewing machine main body 7a Sewing machine needle 9 Suction hole 11 Material set Ruler 13 Sleeve cloth 13a Lower rag cloth 15 Sword rag 15a Sword rag cloth 15b Sword rag main body 15c Fold back Part 17 Center plate 19 Template 19a Hole 21 Upper and lower frame 23 First elevating body 25 Mounting plate 27 Sword rag folding unit 29 Guide shaft 31 Second elevating body 33 Air injection member 35 Left and right frame 37 Third traveling body 39 Fifth upper and lower member 41 Pressing plate 41a Sleeve cloth pressing part 41b Sword rag holding part 41c Main body pressing part 41d Tip pressing part 41e Elastic body 43 Needle guide groove 43a Tip side needle guide groove 45 Connecting shaft 45a Bending part

Claims (8)

In the sword rag folding sewing method in which the sword rag cloth consisting of the sword rag body and the back fold is folded into the sword rag of the desired shape by the sword rag folding unit, and then the sword rag and the sleeve cloth are sewn by the sewing machine body.
1 A cuff notch is formed on the main body table, and the sleeve cloth is set so that the cloth surface faces upward. And the back folds are located below the other edge of the cuff notch.
2 Press the template of the shape corresponding to the sword rag against the other end edge of the cuff notch where the back folding part is overlapped and press it against the main body table surface.
3 The sword rag of the sword rag that is overlapped on one end edge of the cuff notch in the sleeve cloth is folded back toward the back fold part and the cloth surface is turned up.
4 Each side edge of the sword rag body folded back by the sword rag folding unit is folded inward with the required width to form a sword rag.
5 After pulling out the template from the folded sword rag, the presser plate with the needle guide groove extending along the side edge of the sword rag is pressed against the sleeve cloth and the sword rag overlaid on the sleeve cloth. And press it against the table surface of the main body,
6 Move the sleeve cloth and sword rag in the pressed state to the sewing machine body side by the pressing plate that moves to the sewing machine body side.
7 For the sleeve cloth and sword rag that move with the two-dimensional movement of the presser plate in the left-right direction and the front-back direction, move the sewing machine needle of the sewing machine body along the needle guide groove and pierce from the cloth front side of the sword rag. Then sew a sword rag on the sleeve cloth.
A sword rag fold-and-sew method consisting of 1 to 7 above. In claim 1,
In 1 above, the sword rag cloth with the cloth front facing down is overlapped with the sword rag cloth set on the main body table so that the cloth front faces upward, and the sword rag main body overlaps with one end edge side of the cuff notch and the back. After overlapping the folded part on the other end edge of the cuff notch, fold back the other end edge of the cuff notch and return the other end edge of the cuff notch that was folded back with the back folded part positioned on the main body table surface and fold back. A sword-battered fold-and-sew method in which the parts are overlapped while being positioned on the lower side. In claim 1,
When the sword rag body part of the sword rag cloth is folded back to the back fold part side, the folded edge of the sword rag body part should be located on the lower rag cloth sewn on one end edge of the cuff notch in the sleeve cloth. How to fold and sew a sword that folds back into. In claim 1,
The sword rag folding unit is provided with a plurality of fold pieces corresponding to the free end edges of the sword rag body overlapped with the back folds, and each fold piece is operated to inner the corresponding free end edge with the required width. A sword rag fold-and-sew method that folds back to form a sword rag. In claim 1,
Folding the sword rag cloth back into the sword rag The main body table according to the work area is a sword rag fold-and-sew method that allows the set sleeve cloth and sword rag cloth to be adsorbed under negative pressure. In claim 5,
A pair of material set rulers are provided on the main body table according to the folding work area so as to be movable in the front-rear direction, and when the sword rag cloth is set on the sleeve cloth in 1 above, the sword rag main body of the sword rag cloth is supported. The sword rag fold-and-sew method that regulates negative pressure adsorption to the main body table and enables the sword rag main body to be folded back in the above 3. In claim 1,
When the sword rag body is folded back according to 3 above, compressed air is injected from the air injection member arranged on the side of the sword rag body to the sword rag body side to enable the sword rag fold-in sewing. Method. In claim 1,
A pair of facing material set rulers are placed side by side at the set location of the sleeve cloth and sword rag cloth on the main body table at intervals according to the sword rag width, and a center plate is placed in the middle between these pair of material set rulers. Set the sleeve cloth with the cloth table facing up with respect to the main body table so that the notch in the cuff is located on the center plate, and on the set sleeve cloth, the sword rag cloth with the cloth table facing down. The folded edge is aligned with one material set ruler and is located below one side edge of the cuff notch in the sleeve cloth, and the folded edge is aligned with the other material set ruler. How to fold and sew a sword that is set in the open state.

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