JP3568199B2 - Tassel folding device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a tassel folding and sewing apparatus for automatically folding and sewing a tassel used for binding a curtain.
[0002]
[Problems to be solved by the invention]
Conventionally, tassels are sewn as follows.
▲ 1 ▼. In the state in which the lower half surface of the tassel cloth cut into a horizontally long drum shape is overlaid with a core cloth having a flat shape that substantially matches the tassel, the side edges in the longitudinal direction and the direction perpendicular to the longitudinal direction are straight and curved at a predetermined width. Fold each inward.
[0003]
▲ 2 ▼. After inserting the ends of the loop string into both ends in the longitudinal direction of the tassel cloth of the above (1), the middle part in the longitudinal direction is center-folded in the longitudinal direction and overlapped.
[0004]
(3). The tassel fabric of the above (2) is sewn along the outer edge of the punched plate while holding the folded edge and the center-folded side edge overlapping each other while pressing the tassel fabric with the punched plate substantially matching the shape of the tassel to be sewn. At that time, the folded edge into which the loop string is inserted is overlapped and sewn.
[0005]
Conventionally, the tassel is sewn in the above-described procedure. However, in the above operation (1), among the formed folding edges, the curved folding edges are set so as to substantially coincide with the curved folding edges. It was necessary to bend while bending, and this folding work was troublesome and the workability was extremely poor. In addition, each folding edge has to be ironed in order to maintain the folded state, which increases the number of working steps.
[0006]
In (3) of the above-mentioned work, the folded edges and the center-folded side edges overlapping each other are sewn while the center-folded tassel fabric is pressed by the punching plate, but the four sides of the center-folded tassel fabric are stitched. In order to sew the sewing machine in one operation, the punched plate hindered the sewing operation.
[0007]
For this reason, first, after sewing the three sides of the center-folded tassel cloth, the press by the punched plate is once released and the sewing position is changed, and then the remaining one side must be sewn while pressing again with the punched plate. And the number of sewing steps increased.
[0008]
As a result, sewing a tassel requires many work steps and labor, making automatic sewing extremely difficult and increasing the sewing cost.
[0009]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks. The object of the present invention is to perform a series of folding of a tassel cloth and sewing by sewing, thereby reducing the number of manual work steps and sewing. An object of the present invention is to provide a tassel folding and stitching apparatus capable of reducing costs.
[0010]
[Means for Solving the Problems]
The present invention relates to a mold having a shape in which one side edge in a direction perpendicular to the longitudinal direction is substantially coincident with the tassel and a longitudinal side edge is formed in a straight line, and a tassel cloth set in the mold with a shape substantially corresponding to the mold. A punching plate that presses the lower half surface and raises one curved side edge and a linear side edge in cooperation with the mold, and folds inward both longitudinal edges of the tassel cloth held by the punching plate and the front side. A side edge folding member for inserting the loop string set in the holding portion into the side edge side folded, a folding lower member for folding inward one curved side edge of a lower half surface of the tassel cloth held by the punching plate, and a tip A center folding member that moves toward the mold in a state where the portion protrudes from the mold surface and folds and overlaps the middle part in the direction perpendicular to the longitudinal direction of the tassel fabric in the longitudinal direction, and a sewing machine with a planar shape substantially matching the tassel. Pressing pad member that is controlled so that it can move in the two-dimensional direction along the outer edge of the tassel at the right position, and presses the center-folded tassel fabric when moving from the sewing position to the mold, and moves to the mold position A gripping member for gripping a part of the other curved side edge of the upper half surface of the tassel cloth folded in the center in cooperation with the holding pad member along the curve, and a direction coinciding with the moving direction of the lower folding member To the folding upper member for bending the other curved side edge of the upper half surface of the tassel fabric picked up by the holding pad member and the gripping member to a curved shape, and the tassel fabric moved at the sewing position. A sewing machine body that sews the outer edge in a straight line and a curved shape, and automatically folds the tassel cloth set in the mold, and then automatically sewes each folded side edge. Wherein the sewing tassel.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4, the tassel folding and sewing apparatus 1 is provided with a folding mechanism 3 and a sewing machine sewing mechanism 5 on a table 7, and the table 7 on the folding mechanism 3 side has a support plate 9 which constitutes a part of a mold. Provided. The illustrated right end of the support plate 9 is formed on a curved surface 9a that substantially matches the curvature of the tassel 11 to be sewn.
[0012]
Further, on the table 7 located on both sides of the support plate 9, side support plates 13 constituting a part of the mold are provided, respectively, and the recess formed by the support plate 9 and the side support plate 13 is a tassel. The mold is formed substantially in accordance with the planar shape of the eleventh embodiment.
[0013]
The folding lower plate 17 is supported on the support plate 9 so as to be movable in the left-right direction shown in the figure, and the folding lower plate 17 is shown with a predetermined stroke by a first operating member 19 such as an air cylinder provided on the lower surface of the table 7. Move to the right. An upper folding plate 21 is supported on the upper surface of the lower folding plate 17 so as to be movable in the left and right directions shown in the drawing, and the upper folding plate 21 is illustrated by a second operating member 23 such as an air cylinder provided on the lower folding plate 17. To the right.
[0014]
The illustrated right edge of the folded upper plate 21 is multi-divided in accordance with the curvature of the tassel 11, and the leading end of each divided piece 21a is linearly inclined in a direction substantially coinciding with the corresponding curved tangent line, and becomes substantially curved. It is formed.
[0015]
A folding swing plate 25 as a side edge folding member facing each other is supported on the upper surface of each side support plate 13 so as to be swingable about a shaft 26, and a third swing plate 25 such as an air cylinder provided on the lower surface of the table 7 is provided. The operating members 27 swing the respective folding swing plates 25 between the insertion position approaching each other and the mounting position moving away from each other. A holding portion 25a to which the loop side of the loop string 29 is attached is provided at the tip of each folding swing plate 25, respectively.
[0016]
In the table 7 located on the right side of each side support plate 13 shown in the drawing, an opening 31 is opened at least in the longitudinal direction width of the tassel 11 in the front-rear direction shown, and at least in the longitudinal direction width of the tassel 11 in the left-right direction shown. Is formed, and a center folding plate 33 is mounted in the opening 31. The illustrated right end of the center folding plate 33 is connected to a fourth operating member 35 such as an air cylinder provided on the lower surface of the table 7 through an elastic plate 37 such as a leaf spring, and the left side of the center folding plate 33 as illustrated. On the lower surface, a fifth operating member 39 such as an air cylinder provided on the lower surface of the table 7 is provided so as to come into contact with the center folding plate 33 whose left end shown projects from the upper surface of the table 7 by the operation of the fifth operating member 39. Is moved to the left in the figure by the operation of the fourth operating member 35 to fold the tassel cloth 12 in the center.
[0017]
A pair of support frames 41 are erected on the table 7 located on the front-rear direction side of the center folding plate 33 in the illustrated front-rear direction intermediate portion of the fixed bar 43 laid horizontally between the support frames 41. A sixth operating member 45 such as an air cylinder having an axis in the left-right direction as shown is fixed. A first holder 47 is fixed to a rod of the sixth operating member 45, and a seventh operating member 49 such as an air cylinder having an axis in a vertical direction is provided on the first holder 47. An upper and lower holder 51 is attached to the rod of the seventh operating member 49, and an upper punching plate 55 is attached to the upper and lower holder 51 via a spacer shaft 53.
[0018]
The upper blanking plate 55 has a similar shape slightly smaller than the tassel 11 to be sewn, and the left end shown in the figure is formed in a curved shape substantially coinciding with the curved surface 9 a of the support plate 9.
[0019]
At the left and right ends of the fixed bar 43, laser pointers (not shown) for irradiating laser light toward the tassel cloth 12 set on the table 7 are provided. When setting 12, the tassel cloth 12 is positioned so that the laser light from the laser pointer is applied to a specific portion of the tassel cloth 12.
[0020]
A sewing machine sewing mechanism 5 is provided on a table 7 located on the right side of the folding mechanism 3 in the drawing. The sewing machine main body 61 of the sewing machine sewing mechanism 5 has a conventionally known thread cutting mechanism, and a detailed description thereof will be omitted.
[0021]
A horizontal rail 65 extending in the front-rear direction shown in the figure is provided on the right table 7 shown in the figure, and a horizontal carriage 67 slightly longer than the longitudinal direction of the tassel 11 is supported on the horizontal rail 65 so as to be able to reciprocate. Is done. A rack gear 69 extending in the front-rear direction shown in the drawing is fixed to the horizontal carriage 67, and the horizontal carriage 67 is reciprocated by driving a horizontal step motor 71 provided with a pinion gear 73 meshing with the rack gear 69.
[0022]
At each end of the horizontal carriage 67 in the front-rear direction shown in the drawing, a vertical rail 74 extending in the left-right direction shown in the figure is fixed, and the vertical carriage 75 is fixed to each vertical rail 74 in the left-right direction shown in the figure. Each is supported so as to be able to reciprocate at a distance substantially corresponding to the width.
[0023]
A copying guide plate 77 is laid horizontally between the vertical carriages 75. The copying guide plate 77 has a guide portion 77 a having a shape that matches the sewing stitch locus of the tassel 11, and therefore, a shape that substantially matches the outer shape of the tassel 11, and is attached to the mounting plate 61 a fixed to the arm portion of the sewing machine main body 61. By sliding the provided guide pin 61b on the guide portion 77a, a two-dimensional movement of the holding pad 101 and the grip plate 109 described later is guided.
[0024]
A rack gear 79 is provided on the lower surface of the copying guide plate 77 and extends in the left-right direction as shown in the figure. A vertical step motor 81 provided with a pinion gear 83 meshing with the rack gear 79 moves each vertical carriage 75 back and forth. Reciprocate in the direction.
[0025]
An eighth operating member 85 such as an air cylinder having an axis in the left-right direction as shown is attached to each vertical carriage 75, and a first holder 87 is fixed to a rod of each eighth operating member 85, respectively. A ninth operating member 89 such as an air cylinder having an axis in the vertical direction is attached to each first holder 87, and a vertical holder 91 is attached to the rod of each ninth operating member 89. A tenth operating member 93 such as an air cylinder having an axis in the left-right direction shown is attached to each of the upper and lower holders 91, and a rack gear 95 extending in the left-right direction shown in the drawing is attached to a rod of each tenth operating member 93. Each can be attached. Each rack gear 95 is engaged with a pinion gear 97 pivotally supported by each of the upper and lower holders 91, and one arm of a reversing arm 99 formed in a U-shape is fixed to the shaft of each pinion gear 97. The other arm of each reversing arm 99 is pivotally supported at each end of the holding pad 101 in the front-rear direction as shown. The holding pad 101 has a slightly smaller planar shape than the tassel 11, so that the left end shown is curved and the right end shown is linear.
[0026]
An eleventh operating member 103 such as an air cylinder having an axis in the left-right direction as shown is attached to each first holder 87, and a second holder 105 is fixed to a rod of each eleventh operating member 103, respectively. You. A mounting bar 107 is laid horizontally between the second holders 105, and an elongated knob plate 109 is attached to the mounting bar 107 in the front-rear direction shown in the figure. The illustrated right edge of the knob plate 109 is formed as a concave curved surface that matches the curved surface of the holding pad 101, and is brought into contact with and separated from the curved surface of the holding pad 101.
[0027]
In addition, felts 101 a and 109 a are attached to the lower surfaces of the holding pad 101 and the grip plate 109 in order to increase the friction coefficient with the tassel cloth 12.
[0028]
Next, the sewing operation of the tassel 11 by the tassel folding and sewing apparatus 1 will be described.
1. As shown in FIG. 5, a tassel cloth 12 cut into a horizontally long drum shape and having a core cloth 14 superimposed on a lower half surface shown in the figure is set on the table 7 of the folding mechanism 3. At this time, each side edge of the tassel cloth 12 in the longitudinal direction is positioned on each side support plate 13, and one curved side edge of the tassel cloth 12 in the direction perpendicular to the longitudinal direction is positioned on the support plate 9.
[0029]
The setting operation is performed by positioning the laser light from each laser pointer so as to irradiate a specific portion of the tassel cloth 12 on the table 7. Further, the loop side of the loop string 29 is inserted and set in the holding portion 25a of each folding swing plate 25 waiting at the mounting position away from each other.
[0030]
2. As shown in FIG. 6, after the sixth operating member 45 is operated to position the upper blanking plate 55 above the core cloth 14 stacked on the lower half surface of the tassel cloth 12 set on the table 7, 7. The operating member 49 is operated to move the upper blanking plate 55 downward to press the lower half surface of the core cloth 14 and the tassel cloth 12.
[0031]
At this time, when one curved side edge and each longitudinal side edge of the tassel cloth 12 located on the support plate 9 and the side support plate 13 are pressed by the upper punching plate 55, the table 7 and the support plate 9 And it is bent so as to stand up by the step between the side support plates 13.
[0032]
3. As shown in FIG. 7, each third operating member 27 is operated to swing each folding swing plate 25 toward the insertion position approaching each other, and the longitudinal direction of the tassel cloth 12 located on each side support plate 13 is changed. Are folded inward at a predetermined width along the longitudinal direction edge of the upper blanking plate 55, and the loop string 29 held in the holding portion 25a is set on each folded side edge.
[0033]
The longitudinal side edge of the upper half surface of the tassel cloth 12 located on the right side of the side support plate 13 in the drawing is also folded inward following the folding of the longitudinal side edge of the lower half surface by the folding swing plate 25.
[0034]
4. As shown in FIG. 8, the first operating member 19 is operated to move the folded lower plate 17 to the upper surface of the upper punching plate 55 so that one curved side edge of the tassel cloth 12 on the support plate 9 is moved to the upper punching plate 55. Folds inward along the curved edge of.
[0035]
5. As shown in FIG. 9, the sixth operating member 45 is moved backward to retreat the upper punching plate 55 to separate from the upper surface of the tassel cloth 12, and then the seventh operating member 49 is moved back to remove the upper punching plate 55. Move upward and return to the original position.
[0036]
At this time, the lower half surface of the tassel cloth 12 on the table 7 is pressed by the folded lower plate 17 in a state where the longitudinal side edge and the one curved side edge in the longitudinal orthogonal direction are each folded.
[0037]
6. As shown in FIG. 10, the fifth operating member 39 is actuated substantially in synchronization with the return timing of the upper punching plate 55 by the above 5 to lift the illustrated left end of the center folding plate 33 upward and from the table 7 surface. The fourth operating member 35 is operated in a state where the middle portion of the tassel cloth 12 in the direction perpendicular to the longitudinal direction of the tassel cloth 12 is slightly lifted over the entire longitudinal direction, and the center folding plate 33 is moved to the left as shown in the figure to move the upper half of the tassel cloth 12. Is center-folded along the straight edge of the folding lower plate 17 and overlaps with the upper surface of the folding lower plate 17, and the fourth and fifth actuating members 35 and 39 are respectively moved back to return the center folding plate 33 to the original position. Return to position.
[0038]
At this time, since the illustrated right end of the center folding plate 33 is connected to the fourth operating member 35 via the elastic plate 37, the left end of the center folding plate 33 is lifted upward and to the left as illustrated. To move.
[0039]
When the tassel cloth 12 is center-folded, compressed air is injected from an air jetting member (not shown) provided on the lower surface of the table 7 toward the upper half surface of the tassel cloth 12 to be center-folded. The center folding may be surely performed by assisting.
[0040]
7. As shown in FIG. 11, the ninth operating member 89 is operated after the eighth operating member 85 is operated to move the holding pad 101 and the gripping plate 109 in the forward direction to be positioned above the center-folded tassel cloth 12. To move the holding pad 101 and the grip plate 109 downward to hold the center-folded tassel cloth 12.
[0041]
At this time, the grip plate 109 is pressed on the upper half surface of the center-folded tassel cloth 12 on the other curved side edge. Further, the reversing arm 99 rotated to the right in the drawing presses both right and left ends of the center-folded tassel cloth 12 in the drawing.
[0042]
8. As shown in FIG. 12, the eleventh operating member 103 is operated to move the grip plate 109 toward the holding pad 101, and the other curved side edge of the upper half surface of the tassel cloth 12 is gripped along the curvature of the holding pad 101. Look up.
[0043]
9. As shown in FIG. 13, the second operating member 23 is operated to move the folding upper plate 21 to the right side as shown in the drawing, and the upper part of the tassel cloth 12 partially lifted up by the holding pad 101 and the gripping plate 109. The other curved side edge of the half surface is folded inward.
[0044]
On the other hand, when the curved side edge is folded inward, the ninth operating member 89 is temporarily moved back to move the holding pad 101 and the grip plate 109 upward, thereby enabling the inward folding, and then completing the folding. At the timing, the ninth operating member 89 is operated again to move the holding pad 101 and the grip plate 109 downward to continue holding the center-folded tassel cloth 12.
[0045]
At the timing when the folding of the other curved side edge of the upper half surface of the tassel cloth 12 is completed, the folding lower plate 17, the folding upper plate 21, the folding swing plate 25, and the center folding plate 33 are returned to their original positions.
[0046]
The folding work of the tassel cloth 12 is completed by the above-mentioned 1 to 9, and the sewing machine is sewn as follows. At the time of sewing, the operator sets the tassel cloth 12 to be next sewn on the table 7 of the folding mechanism 3 and the loop string 29 on the holding portion 25a of each folding swing plate 25, and stands by.
[0047]
10. As shown in FIG. 14, in a state where the tassel cloth 12 is held down by the holding pad 101 and the knob 109 moved downward, the eighth operating member 85 is moved back to show the holding pad 101 and the knob 109. By moving the tassel cloth 12 to the right, the tassel cloth 12 whose center is folded by folding each side edge is moved to the sewing position of the sewing machine main body 61.
[0048]
At this time, the needle 61c of the sewing machine main body 61 is positioned at the sewing start position A of the tassel cloth 12 whose center is folded at each side edge.
[0049]
11. As shown in FIG. 15, the sewing machine main body 61 is driven by driving the vertical stepping motor 81 to move the presser pad 101 to the left as shown in the drawing and to move the tassel cloth 12 pressed by the presser pad 101 integrally in the same direction. To longitudinally sew one side edge of the tassel cloth 12 in the longitudinal direction from the sewing start position A in the direction perpendicular to the longitudinal direction of the position D, and then drive the vertical stepping motor 81 in reverse to move from the position D to the sewing start position A. Move back and repeat sewing.
[0050]
Next, in a non-braking state in which the driving of the vertical step motor 81 is interrupted, the horizontal step motor 71 is driven to move the press pad 101 in the horizontal direction while driving the sewing machine main body 61 to sew the curved side edge of the tassel cloth 12. Sewing is performed from the start position A to the position B.
[0051]
At this time, the guide pad 61b fixed to the curved portion of the guide portion 77a of the copying guide plate 77 that moves integrally with the presser pad 101 slides the presser pad 101 to move the presser pad 101 in the horizontal direction and the vertical direction. The curved side edge of the tassel cloth 12 is sewn along the curve.
[0052]
12. When the sewing machine reaches position B, the vertical stepping motor 81 is driven in a state where the driving of the horizontal stepping motor 71 is interrupted, and the sewing machine main body 61 is driven while moving the presser pad 101 to the left in the figure to position B. , The longitudinal step motor 81 is driven in the reverse direction to move the presser pad 101 to the right in the drawing, thereby performing sewing on the sewing machine.
[0053]
13. As shown in FIG. 16, when the sewing needle 61c is located at the position B of the tassel cloth 12, the drive of the vertical step motor 81 is interrupted, and then the needle bar (not shown) is moved upward to cut the thread. After the reversing arm 99 is turned to the left as shown by the rack gear 95 moved by the operation of the tenth operating member 93 to change the pressing position of the tassel cloth 12 from the position C to the position B, a vertical stepping motor is used. The sewing machine needle 61c is positioned at the position C of the tassel cloth 12 by driving the press pad 81 to move the press pad 101 to the left in the figure.
[0054]
14． As shown in FIG. 17, the sewing machine main body 61 is driven while the vertical stepping motor 81 is driven to move the holding pad 101 rightward in the drawing to move the other longitudinal edge of the tassel cloth 12 from the position C to the position B. , The vertical step motor 81 is driven in reverse to return to the position C from the position B, and the overlapped sewing is performed. The sewing machine main body 61 is driven while the presser pad 101 is moved in the lateral direction by driving the sewing machine in the reverse direction to sew the straight side edge of the tassel cloth 12 from the position C to the position D.
[0055]
At this time, the guide pad 66b is slidably brought into contact with the linear portion of the guide portion 77a of the copying guide plate 77 to guide the pressing pad 101 to move linearly. However, the vertical step motor 81 is braked by the DC restraint as described above. Then, the presser pad 101 cannot be moved in the vertical direction, and the linear sewing is performed with high quality.
[0056]
15. When the position D of the tassel cloth 12 is positioned with respect to the sewing machine needle 61c, the vertical stepping motor 81 is driven in a state where the driving of the horizontal stepping motor 71 is interrupted, and the presser pad 101 is moved to the right as shown in the drawing. After the main body 61 is driven and the sewing machine is sewn from the position D to the sewing start position A, the vertical stepping motor 81 is driven in reverse to drive the sewing machine main body 61 while moving the presser pad 101 to the left as shown in the figure. The sewing machine is sewn from position A to position D to overlap the side edges of the tassel cloth 12 in the longitudinal direction.
[0057]
As shown in FIG. 18, the tassel 11 is sewn by sewing each side edge of the center-folded tassel cloth 12 with the curved side edges in the direction perpendicular to the longitudinal direction and the side edges at both ends in the longitudinal direction folded. At this time, the two side edges of the tassel 11 to which the loop string 29 is attached in the longitudinal direction are overlapped and sewn four times, so that the loop string 29 is firmly fixed.
[0058]
After the sewing operation described above, the ninth operating member 89 is moved back, and the presser pad 101 is returned upward to release the press of the tassel 11 on which the sewing operation has been performed. Thus, the tassel 11 sewn on the sewing machine is left on the table 7 as it is.
[0059]
On the other hand, since the tassel cloth 12 to be sewn next is set on the table 7 at the time of sewing, as described above, when the sewing is completed, the procedure returns to step 2 and the folding operation of the next tassel cloth 12 is performed. To start.
[0060]
16. When the tassel cloth 12 whose center is folded by the above-mentioned 10 and whose side edges are folded is moved to the sewing position, the tassel 11 sewn in the previous operation is pushed to the right in the drawing in accordance with this movement. To be able to carry out.
[0061]
This embodiment has the following operations and effects.
1. Each side edge, particularly the curved side edge, of the tassel cloth 12, which is cut into a horizontally long drum shape and the core cloth 14 is overlapped on the lower half surface, is folded with high quality, and a folding operation and a sewing operation are performed in series. In addition, the number of working steps can be reduced and labor can be saved to reduce sewing costs.
[0062]
2. The tassel cloth 12 to be sewn next can be set during sewing, and continuous sewing can be performed to increase the sewing efficiency.
[0063]
3. Since the longitudinal side edges on which the loop string 29 is provided are overlapped and sewn four times, the loop string 29 can be firmly fixed.
[0064]
The present invention can be modified and implemented as follows.
1. In the above description, an air cylinder is illustrated as an operating member, but an electromagnetic solenoid may be used for an operating member having a short stroke.
[0065]
2. To sew various types of tassel of different sizes and shapes, a support plate, fold lower plate, fold upper plate, upper punch plate, and profiling guide that are shaped according to the curvature and longitudinal length of the tassel to be sewn It can be dealt with by exchanging boards, holding pads, knob boards, etc., and is excellent in versatility.
[0066]
3. The above description is of a configuration in which the pressing pad 101, that is, the center-folded tassel cloth 12 is moved in the two-dimensional direction by the copying guide plate 77 having the guide portion 77a similar to the shape of the tassel 11, and the side edges thereof are sewn. However, the horizontal stepping motor 71 and the vertical stepping motor 81 may be numerically controlled based on a position detection signal from an attached encoder to perform sewing operation while moving the presser pad, that is, the tassel cloth 12 two-dimensionally. .
[0067]
4. In the above description, the longitudinally opposite edges of the center-folded tassel cloth 12 are overlapped and sewn four times, but the present invention is not limited to the above-described number of overlapped sewn places, Alternatively, the layers may be sewn in six layers.
[0068]
5. In the above description, the side edges in the longitudinal direction of the center-folded tassel fabric 12 are sewn in a pile, and then the curved edge, the side edge (lap sewn), the straight edge, and the side edge are sewn in this order. The order is not limited to this. The sewing start position is set to position D, a straight edge from position D to position C after overlapping sewing between position D and position A, and a side edge between position C and position B. The sewing may be performed in the order of (overlap stitching), a curved edge from the position B to the position A, and side edges of the positions A and D (overlap stitching).
[0069]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the folding process and the sewing process of the tassel cloth are continuously and automatically performed, the number of manual operation steps can be reduced, and the sewing cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a tassel folding and sewing apparatus.
FIG. 2 is a schematic plan view of the tassel folding and sewing apparatus.
FIG. 3 is a schematic perspective view of a folding mechanism in the tassel folding and sewing device.
FIG. 4 is a schematic perspective view of a sewing machine sewing mechanism in the tassel folding and sewing apparatus.
FIG. 5 is an explanatory diagram showing a set state of tassel cloth on a table.
FIG. 6 is an explanatory diagram showing a state of holding tassel cloth.
FIG. 7 is an explanatory view showing a folded state of a longitudinal side edge of the tassel cloth.
FIG. 8 is an explanatory view showing a folded state of one curved side edge of the tassel cloth.
FIG. 9 is an explanatory view showing a state in which the press by the upper blanking plate is released.
FIG. 10 is an explanatory diagram showing a center folded state.
FIG. 11 is an explanatory diagram showing a pressing state by a pressing pad.
FIG. 12 is an explanatory diagram showing a gripping state of the other curved side edge of the tassel cloth.
FIG. 13 is an explanatory view showing a folded state of the other curved side edge.
FIG. 14 is an explanatory diagram showing a sewing start state.
FIG. 15 is an explanatory diagram showing a sewing state of the tassel cloth on the longitudinal side edge and the curved side edge.
FIG. 16 is an explanatory view showing a state in which the pressing position is changed by the reversing arm.
FIG. 17 is an explanatory view showing a sewing state of the side edges in the longitudinal direction and the straight side edges of the tassel cloth.
FIG. 18 is an explanatory diagram showing a sewing state of a tassel sewn on a sewing machine.
[Explanation of symbols]
1-Tassel folding device, 3-fold mechanism, 5-sewing machine mechanism, 9-type supporting plate, 11-tassel, 12-tassel fabric, 13-type side Support plate, 17-fold lower plate, 21-fold upper plate, 25-fold swing plate, 33-center bent plate, 55-upper plate, 61-sewing machine body, 101-holding pad, 109-knob plate

Claims (4)

Holds the lower half of the tassel cloth set in the mold, which is substantially coincident with the tassel, and has one side edge in the direction perpendicular to the longitudinal direction that is curved and the longitudinal side edge is formed in a straight line, and the shape that almost matches the tassel. And a punching plate for erecting one curved side edge and a straight side edge in cooperation with the above-mentioned mold, and folding inward both longitudinal edges of the tassel cloth held by the punching plate and setting the holding portion on the distal end side. A side edge folding member that inserts the folded loop string into the folded side edge side, a folding lower member that folds one curved side edge of the lower half surface of the tassel fabric held down by the punching plate inward, and a tip portion having a mold surface. The center fold member that moves toward the mold in a state protruding from the tassel cloth and folds the middle part in the direction perpendicular to the longitudinal direction of the tassel fabric over the longitudinal direction and overlaps it, and a plane shape that almost matches the tassel, at the sewing position A press pad member that is controlled to be movable in a two-dimensional direction along the outer edge of the tassel, and that presses the center-folded tassel cloth when moving from the sewing position to the mold, and a press pad member that moves to the mold position. In cooperation with the handle member, which picks up part of the other curved side edge of the upper half surface of the center-folded tassel fabric along the curve, moves in the direction coinciding with the moving direction of the folding lower member. The folding upper member for bending the other curved side edge of the upper half surface of the tassel cloth picked up by the holding pad member and the gripping member into a curved shape, and the outer edge of the tassel cloth moved at the sewing position is straightened. And a sewing machine main body that performs sewing in a curved shape. 2. The tassel folding and sewing apparatus according to claim 1, wherein at least a mold, a punched plate, a folding lower member, a folding upper member, a holding pad member, and a knob member are provided so as to be interchangeable so as to correspond to various shapes of the tassel to be sewn. The presser pad member is provided with a copying guide member having a guide portion similar to a tassel shape to be sewn, and a guide pin fixed to the sewing machine body is slidably contacted with the guide portion to guide the movement of the presser pad in a two-dimensional direction. 2. The tassel folding and sewing apparatus according to claim 1, wherein the outer edge of the tassel cloth that has been center-folded is sewn. 2. The tassel folding and sewing apparatus according to claim 1, wherein the press pad member is controlled to be moved in a two-dimensional direction by an electric motor capable of numerically controlling the outer periphery of the center-folded tassel cloth.

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