JPH10201973A - Curtain fold sewing method, curtain hook supply device, and curtain fold removal sewing device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the productivity of manufacturing a curtain with a curtain hook by automatically inserting a non-sewable insertion type curtain hook into each curtain fold and sewing. SOLUTION: At the time of hook supply timing, a lowermost curtain hook accommodated in a hook holder is provided with a holding portion and an expanding portion at an end of an insertion member provided in a hook insertion machine of a curtain hook supply device. 155 is held by the holding section, and the cloth holding piece 156a of the curtain hook 155 is pushed open by the expanding section, and is inserted into the curtain fold 6 transferred to the sewing position. Then, the cloth holding piece 156a is held in a state of being pushed and opened by a specific plurality of relay needles 16a, 16b, 16e among the plurality of lowered relay needles 16a to 16h, and the presser foot 18 is further lowered and delivered. Sometimes, the plurality of restraining members 1
At 65, the cloth holding piece 156a is pushed and held open, and in this state, the curtain fold 6 is sewn by the sewing needle 14 of the lockstitch sewing machine 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain hook feeder for inserting an insertion type curtain hook into a curtain fold with the cloth holding piece being pushed open, and a cloth holding piece for the curtain hook inserted into the curtain fold. The present invention relates to a curtain fold sewing method for sewing curtain folds in a state in which the fold is pushed open and a curtain fold removal sewing apparatus.

[0002]

2. Description of the Related Art Conventionally, curtain folds are formed by sequentially forming curtain folds at appropriate intervals on an upper end portion of various types of curtain fabrics including laces, and sewing the formed curtain folds sequentially with a sewing machine. Various devices have been proposed and put into practical use. For example,
No. 20715, Japanese Patent Publication No. 6-9638, Japanese Patent Application Laid-Open No. 7-275544, and Japanese Patent Publication No. 7-79887.
In the publication, basically, three ridge-forming spats provided horizontally or vertically are provided in parallel with each other at a predetermined interval, and two ridges that face the ridge-forming spatula are provided. After the folds of the curtain fabric are set so as to cover the three folds of the folds, the two folds of the folds are set between the folds of the folds. By pressing each, the curtain cloth is folded in a zigzag manner by these five spats to form curtain folds composed of three folds, and the curtain folds are sequentially supplied to the sewing machine every time the curtain folds are formed. 2. Description of the Related Art A crease removing machine and a crease forming device that form a predetermined seam on a curtain crease by a sewing machine have been proposed.

Further, recently, each time a curtain fold is formed, a curtain hook is set, and a curtain fold to which the curtain hook is attached is sewn.
A hook supply device and a hook sewing device have been proposed. For example, in Japanese Patent Application Laid-Open No. 5-123474, after covering curtain cloth on three parallel bar-shaped inner fold forming pieces at predetermined intervals, two parallel outer fold forming plates are attached to each of the inner fold forming pieces. A fold sewing method in which a curtain fold composed of three folds is formed by inserting the fold at the end, a hook member is inserted inside the center fold, and the curtain fold and the hook member are simultaneously sewn. Have been described.

Japanese Patent Application Laid-Open No. 7-213768 discloses that a chuck device, a positioning device, and a pressing device are provided on a mounting table provided adjacent to a sewing machine, and a claw for holding a chuck attached to the chuck device is provided. At the same time as holding the curtain hook at the end of the curtain and moving the holding hook forward to move the curtain hook to the sewing position, the bar attached to the positioning device is also moved forward, and the curtain is hooked on this bar and folded into two. There has been proposed a hook sewing apparatus in which a fabric is set so as to be wrapped around a curtain hook from above and below, and the curtain fabric and the curtain hook are simultaneously sewn with a sewing machine.

On the other hand, Japanese Patent Application Laid-Open No. 6-22032 discloses a state in which a plurality of curtain hooks are vertically stacked so that a curtain hook located below a hook holder is detachably engaged with a projection. Then, after moving the hook of the curtain hook to the predetermined position at the tip of the rod connected to the air cylinder, hold the curtain hook at the tip of the piston rod driven by another air cylinder, and move forward with the curtain fold. There has been proposed a curtain hook automatic supply device to be inserted into the inside.

[0006]

The curtain hook attached to each of a plurality of curtain folds formed at one end of the curtain at predetermined intervals is low in cost and can be removed especially when washing. A detachable insertion type is known. As described above, in the fold sewing method described in Japanese Patent Application Laid-Open No. 5-123474 and the hook sewing apparatus described in Japanese Patent Application Laid-Open No. 7-213768, a sewn-type curtain hook is attached to the curtain fold. It is designed to be sewn, and it is not only possible to insert a non-sewn type curtain hook that keeps the cloth holding piece pushed out from the hook body into the curtain fold, but also requires manual operation and another process, There is a problem that productivity is reduced.

In the curtain hook automatic supply device described in Japanese Patent Application Laid-Open No. 6-22032, curtain hooks can be automatically supplied to each curtain fold. It is not possible to keep the expanded state, and it is not possible to supply a removable insertion type curtain hook. That is, in this type of insertion type curtain hook, every time a predetermined number of curtain folds are formed on the curtain fabric, the curtain hooks are attached to the curtain folds one by one by an operator's manual operation. There is a problem that it is actual, inefficient, and reduces productivity.

SUMMARY OF THE INVENTION It is an object of the present invention to sew a curtain fold such that an insertion-type curtain hook which is not sewn can be automatically inserted into each curtain fold and sewn, thereby improving the productivity of manufacturing a curtain with a curtain hook. , A curtain hook supply device, and a curtain fold removal sewing device.

[0009]

According to a first aspect of the present invention, there is provided a curtain fold sewing method for sewing a curtain fold formed by a curtain fold remover with a sewing machine.
When sewing the curtain folds formed by the curtain fold remover with a sewing machine, insert the insertion type curtain hook into the curtain folds, sew the curtain folds with the cloth holding piece of the curtain hooks opened, and then curtain hooks In which the cloth holding piece is opened.

When a curtain fold is formed by a curtain fold remover, an insertion-type curtain hook that is not sewn is inserted into the curtain fold. At this time, the cloth holding piece of the curtain hook is opened, and the curtain fold is sewn in this state. Then, after that, the restraint for opening the cloth holding piece of the curtain hook to the open state is released. Thus, the insertion type curtain hook can be attached with the cloth holding piece hooked on the seam.

A second aspect of the present invention is a curtain hook supplying apparatus for supplying an insertion type curtain hook to a curtain fold prior to sewing a curtain fold formed by a curtain fold remover. A hook accommodating section for accommodating the curtain hooks in a stacked state, and a hook inserting machine for extruding a curtain hook at the endmost stage in the hook accommodating section and inserting the curtain hook into a curtain fold, and the hook inserting machine holds the curtain hook. An insertion member that has a holding portion and an expanding portion that pushes the cloth holding piece of the curtain hook open at the tip side and that holds the curtain hook and inserts the curtain holding piece with the cloth holding piece pushed open by the expanding portion; And a stroke type actuator for driving the insertion member forward and backward.

A plurality of curtain hooks are accommodated in the hook accommodating portion in a stacked state, and at the time of hook insertion, the endmost curtain hook in the hook accommodating portion is pushed out by a hook inserting machine and inserted into a curtain fold. You.
That is, in the hook insertion machine, when the insertion member is advanced and driven by the stroke type actuator, the cloth holding piece of the curtain hook is pushed open by the expanding portion provided at the distal end side portion, and this state is maintained. The holding portion holds the curtain hook and is inserted into the curtain fold. That is, the curtain hook inserted into the curtain fold is held in a state where the cloth holding piece is pushed open, so that the curtain fold can be easily sewn with the curtain hook detachably attached.

According to a third aspect of the present invention, in the second aspect of the present invention, the curtain hook is an adjustable hook having a movable hook mounted on a hook body so as to be adjustable in position. A positioning member for positioning the movable hook with respect to the main body,
It has a stroke type actuator for driving this positioning member. In this case, even if the curtain hook is an adjustable hook having a movable hook, the mounting position of the movable hook with respect to the hook body can be positioned via the positioning member by driving the stroke type actuator, and the adjustable hook is moved to the position " It can be easily switched to either "A type" or "B type". In addition, the same operation as the second aspect is achieved.

According to a fourth aspect of the present invention, there is provided a sewing machine for removing curtain folds.
A curtain fold removing machine that sequentially forms curtain folds at a plurality of locations at appropriate intervals on one end portion of the curtain fabric in a horizontal posture, a sewing machine for sewing curtain folds formed by the curtain fold remover, A curtain hook supplying device for supplying a curtain hook of an insertion type to a curtain fold held by a sewing machine, the curtain hook supplying device comprising: a hook housing for accommodating the curtain hooks in a stacked state. And a hook insertion machine for extruding a curtain hook at the endmost stage in the hook accommodating section and inserting it into a curtain fold. The hook insertion machine presses a holding portion for holding the curtain hook and a cloth holding piece of the curtain hook. An opening portion that opens is provided at the distal end portion, and the curtain hook is held while the cloth holding piece is pushed open by the opening portion. The sewing machine includes a feed plate that feeds the material to be sewn, a holding member that presses the material to be sewn on the feed plate, and a curtain stripper. A plurality of relay needles that can be lifted and lowered until the curtain fold transferred from the machine onto the feed plate is pressed by the holding member, and the plurality of relay needles open the cloth holding piece of the curtain hook at the expanding portion. The holding member includes a plurality of restricting members for holding the cloth holding piece of the curtain hook in the opened state at the expanding portion.

In the curtain hook supplying device, a plurality of curtain hooks are accommodated in a stacked state in the hook accommodating portion. At the time of hook insertion, the curtain hook at the endmost stage in the hook accommodating portion is pushed out by the hook inserting machine. Inserted into the curtain fold. That is, in the hook insertion machine, when the insertion member is driven to advance by the stroke type actuator, the cloth holding piece of the curtain hook is pushed open by the expanding portion provided at the distal end portion thereof,
While holding this state, the curtain hook is held by the holding portion and inserted into the curtain fold.

On the other hand, in a sewing machine, when sewing a curtain fold formed by a curtain fold remover,
When the curtain hook with the cloth holding piece pushed open in the curtain fold is inserted, by lowering a plurality of relay needles at the same time, the cloth holding piece of the curtain hook is opened at the expanding portion. When the holding member is lowered in this state, the cloth holding piece of the curtain hook is held in the opened state by the expanding portion by the plurality of restraining members. That is, the curtain hook inserted into the curtain fold is held in a state where the cloth holding piece is pushed open, so that the sewing machine can easily sew the curtain fold with the curtain hook detachably attached. Can be.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is a curtain fold remover 3 that sequentially forms three ridges of curtain folds at predetermined intervals at an upper end portion of a curtain fabric, and a curtain that supplies a curtain hook 160 to the formed curtain folds 6. The present invention is applied to a curtain fold removing and sewing apparatus 1 including a hook supplying device 150 and a lockstitch sewing machine 2 (corresponding to a sewing machine) for sequentially sewing the curtain folds 6 supplied from the curtain fold removing device 3. It is the case when doing. First, the lockstitch sewing machine 2 will be described.

As shown in FIGS. 1 and 2 and FIGS. 9 and 10,
The lockstitch sewing machine 2 is provided on a movable support table 10. The lockstitch machine 2 includes a bed 11 provided with a rotary hook and a lower shaft (not shown), a pillar 12 erected from the bed 11, and an arm 13 extending forward from the pillar 12. It is composed of A needle bar vertical movement mechanism for vertically moving a needle bar having a sewing needle 14 attached to a lower end thereof, and a balance vertical movement for vertically moving a balance are provided in the arm portion 13 via an upper shaft driven by a sewing machine motor (not shown). A mechanism and the like are provided.

Further, a sewing needle 14 is provided on the head of the arm 13.
, Eight relay needles 16a to 16h (see FIG. 30) attached to the needle support 15 (see FIG. 3) are vertically movably supported, and the needle support 15 is vertically moved at a predetermined timing. The needle air cylinder 17 to be driven is fixed downward. Here, when a curtain hook 155 to be described later is supplied to the inside of the curtain fold 6, a plurality of relay needles 16a among these eight relay needles 16a to 16h are particularly provided.
The cloth holding piece 156a of the curtain hook 160 is held in an open state by 16b 16e or the like.

On the other hand, the bed 11 is provided with the curtain cloth 5.
A presser foot drive mechanism 19 is provided for switching a presser foot (corresponding to a presser member) 18 for pressing the curtain fold 6 formed at the press position between a press position and a retracted position above the press position. Here, as shown in FIGS. 3 to 4 and FIG. 26, this presser foot 18 has nine needle-shaped restraining members 165.
Are attached downward, so that the curtain fold 6 can be pressed and held, and can be delivered from the relay needle 16 to the presser foot 18 with the cloth holding piece 156a opened.

Further, in order to sew the curtain fold 6, X
An X-direction feed plate 20 for moving in the direction (left-right direction) and a Y-direction feed plate (not shown) for moving in the Y-direction (front-rear direction) are provided. Each is independently driven based on the sewing data by an external feed drive mechanism. Further, on the bed 11, as shown in FIGS. 3 and 8 to 9, a bent discharge plate 21 for extruding and discharging the sewn curtain fold 6 to the front end of the bed 11 is provided, A discharge air cylinder 22 that pushes the discharge plate 21 forward is provided.

FIGS. 1 and 2 and FIGS. 4 to 1 show a curtain fold remover 3 for sequentially forming curtain folds 6 at a plurality of locations at predetermined intervals on the upper end portion of the curtain cloth 5. FIG.
9 will be described. The curtain fold removing machine 3 includes a curtain fold forming mechanism 25 that forms the curtain folds 6 on the curtain fabric 5 sequentially in a vertical posture by moving the plurality of cloth holding plates 55 to 58 at equal intervals, and a curtain fold forming mechanism. 2
Rotating mechanism 6 for erecting and rotating 5 from a horizontal state to a vertical state
5, the curtain fold forming mechanism 25 and the rotating mechanism 65
And a left-right moving mechanism 90 for moving the curtain fold forming mechanism 25, the rotating mechanism 65, and the front-rear moving mechanism 75 in the left-right direction. I have.

First, the curtain fold forming mechanism 25 will be described. A substantially rectangular substrate 26 in a plan view is horizontally disposed in the front-rear direction, and the vertical wall portions 26a, A pair of guide shafts 27 are provided on the left and right sides in parallel and horizontally in the front-rear direction over 26b,
The guide shaft 27 has four support blocks 26b and 28 to 30 with the vertical wall 26b as a support block.
Except for the support block 26b, each is supported so as to be able to move back and forth. Each of the support blocks 28 to 30 is formed by integrally connecting a pair of blocks 28a, 29a, 30a externally fitted to the guide shaft 27 by connecting plates 28b, 29b, 30b. Each of the support blocks 26b and 28 to 30 can move back and forth in conjunction with each other by pivotally connecting the link mechanism 31 in which the four link plates 32 to 35 are sequentially connected to the connection plates 28b, 29b and 30b. Is configured.

That is, the rear end of the link plate 32 is pivotally attached to the motor mounting plate 36 attached to the support block 26b, the center of the link plate 33 is pivotally attached to the support block 28, and the link plate 34 is attached to the support block 29b. And the front end of the link plate 35 to the support block 30. A driving pulley 38 fixed to a motor shaft of a fold forming driving motor 37 mounted on a motor mounting plate 36, and a driven pulley rotatably supported by a support bracket 39 mounted on a front end of the substrate 26. A timing belt 41 is stretched over the support block 40, and the timing belt 41 is fixed to the support block pair 30 by a fixing bracket 42.

When the fold forming drive motor 37 is driven to rotate, the support block 30 moves forward or backward via the pulleys 38 and 40 and the timing belt 41, and at the same time, the support block 30 moves via the link mechanism 31. Support block 28,
28 also moves forward or backward simultaneously in synchronization. The base end of a vertical reference upper holding plate 45 is attached to the support block 26b, and the base end of a similar upper holding plate 46 is attached to the support block 28. A base end of a similar upper holding plate 47 is attached to 29, and a base end of a similar upper holding plate 48 is attached to the support block 30.

That is, each of the support blocks 28 to 30 is simultaneously moved forward or backward through the link mechanism 31 in synchronization with each other, so that the horizontal position of the reference upper holding plate 45 closest to the lockstitch sewing machine 2 is adjusted. In the fixed state, the other upper holding plates 46 to 48 are separated while moving forward at regular intervals, while approaching while moving backward at regular intervals. By the way, as shown in FIG.
b, 28 to 30, a downwardly opening / closing air cylinder 61 is fixed via a mounting member 60, respectively, and at the lower end of the piston rod of the opening / closing air cylinder 61,
The base ends of the vertical lower holding plates 51 to 53 are respectively attached to the left direction, and the same reference lower holding plate 50 is attached to the lower end of the piston rod of the opening / closing air cylinder 61 which is attached downward to the support block 26b. Is mounted at the base end.

At this time, the lower holding plates 50 to 53 and the upper holding plates 45 to 48 are vertically opposed to each other, and the lower end surfaces of the upper holding plates 45 to 48 and the lower holding plates 50 to 53 When the opening / closing air cylinder 61 is driven forward, the lower holding plates 50 to 53 are connected to the upper holding plates 4.
The curtain cloth 5 is set between the upper holding plates 45 to 48 and the lower holding plates 50 to 53, and the opening / closing air cylinders 61 are retracted. When driven in, each lower holding plate 50-
53 is driven upward with respect to each of the upper holding plates 45 to 48, that is, is closed, and the fold formation portion of the curtain fabric 5 is vertically moved by the upper holding plates 45 to 48 and the lower holding plates 50 to 53 facing each other. From the same time. Here, the upper holding plates 45 to 48 and the lower holding plates 50 to 53 facing each other constitute cloth holding plates 55 to 58.

Then, as shown in FIG. 8A, when the curtain cloth 5 is maintained in a pressed state by the cloth holding plates 55 to 58, the fold forming drive motor 37 is driven in a predetermined rotation direction. In this case, as described above, the support blocks 28 to 30 move forward in synchronization with each other,
When each of the cloth holding plates 56 to 58 moves forward at equal intervals, a curtain fold 6 composed of three folds having the same height is provided on the curtain cloth portion located between the cloth holding plates 55 to 58. It is formed in an upward vertical posture.
By the way, as shown in FIG. 8 (b), only the foremost opening / closing air cylinder 61 is not driven, and only the foremost lower holding plate 53 is lowered. The fold 6A can be formed.

Here, the origin position sensor 62 for detecting the position of each of the support blocks 26b and 28 to 30 when the curtain fold 6 is formed, that is, the origin position of the support block 30.
(See FIG. 6) is provided on the substrate 26. By the way, as shown in FIG. 8A, the lower end portions of the upper holding plates 45 to 48 are formed in a tapered shape such that the plate thickness becomes smaller toward the lower end side. This makes it easy for the curtain fabric portion to bend upwards, so that the formation of upward curtain folds can be ensured.

Next, a description will be given of a turning mechanism 65 for turning the curtain fold forming mechanism 25 upright by turning it 90 degrees from a horizontal state. As shown in FIGS. 1, 2, and 11 to 14, a support member 66 that is oriented in the front-rear direction is fixed to a rear end of the substrate 26, and a front end of the support member 66 is connected to a horizontal support plate 79 described later. Is rotatably supported by a support member 73 attached to the rear end of the support member 66 via a pivot pin 67 oriented in the left-right direction.
8 is fixed at the upper end. Further, the lower end of the pivoting lever 68 is connected to the distal end of a piston rod of a pivoting air cylinder 69 disposed rearward through a coupling 70, and the rear end of the pivoting air cylinder 69 Is connected to the front end of the support plate 79 via a pivot bracket 71.

That is, when the curtain fold forming mechanism 25 is horizontal so that the curtain fold 6 can be formed, the rotating air cylinder 69 is driven to advance. Then, when the posture of the curtain fold 6 formed in the vertical posture is changed to the horizontal posture, the lower end portion of the rotation lever 68 is pulled forward through the piston rod by the retreat driving of the rotation air cylinder 69. Curtain fold formation mechanism 2
The pivot 5 rotates about the pivot pin 67 via the pivot lever 68 and the support member 66 and pivots 90 ° clockwise as shown in FIG. On the other hand, when the rotation air cylinder 69 is driven to advance, it returns to the original horizontal fold forming position shown in FIG. Here, the absorber 72 attached to the support plate 79 absorbs the impact when the curtain fold forming mechanism 25 returns to the rotation, and is positioned at the horizontal fold formation position.

Next, a back-and-forth moving mechanism 75 for moving the curtain fold forming mechanism 25 and the rotating mechanism 65 in the front-rear direction will be described with reference to FIGS. The front-rear movement mechanism 75 moves the curtain fold formation mechanism 25 backward from the fold formation position indicated by the solid line to the sewing position indicated by the two-dot chain line as shown in FIG.
It is retracted to the original fold formation position. Here, a curtain hook supply device 150, which will be described later, is provided in the front-rear movement mechanism 75, and the curtain fold formation mechanism 25
It is possible to move in the front-back direction in synchronization with. A pair of guide shafts 77 are vertically arranged in parallel in the front-rear direction and horizontally across vertical wall portions 76a and 76b attached to the front and rear end portions of a rectangular front-rear movement base plate 76 long in the front-rear direction. A support block 78 is supported by these guide shafts 77 so as to be able to move back and forth. The support block 78 is formed by connecting a pair of blocks 78 a externally fitted to the guide shaft 77 to the connecting plate 7.
8b are integrally connected.

Further, a horizontal support plate 79 is attached to the upper end of the support block 78. The drive pulley 81 fixed to the motor shaft of the front / rear drive motor 80 attached to the rear end of the front / rear movement base plate 76 and the support bracket 82 attached to the front end of the front / rear movement base plate 76. A timing belt 83 is stretched over a driven pulley rotatably supported, and the timing belt 83 is fixed to a support block 78 by a fixing bracket 84. Here, the origin position sensor 85 for detecting the origin position in the front-back direction of the curtain fold forming mechanism 25 when forming the curtain fold 6 is provided by the vertical wall portions 76a and 76.
It is provided on the side plate 86 provided over the area b.

When the front / rear drive motor 80 is driven to rotate, the support block 78 moves forward or backward via the timing belt 83, and at the same time, the support plate 79 moves in the front / rear direction. The curtain fold forming mechanism 25 provided above is moved in the front-rear direction. Next, a left-right moving mechanism 90 for moving the curtain fold forming mechanism 25, the rotating mechanism 65, the front-rear moving mechanism 75, and the curtain hook supply device 150 in the left-right direction will be described with reference to FIGS.

The left-right moving mechanism 90 transfers the curtain fold forming mechanism 25 to the relay needle 16 after forming the curtain fold 6 as shown by a solid line in FIG. Is retracted to the retreat position shown by the two-dot chain line in order to retreat to the right, and is moved in the left-right direction in synchronization with the sewing of the curtain fold 6. A pair of guide shafts 92 are parallel in the left and right direction in the front and rear direction over vertical wall portions 91a and 91b respectively attached to left and right end portions of a rectangular left and right movement base plate 91 provided on the support table 10. The guide shaft 92 is horizontally disposed, and two support blocks 93 and 94 are supported on the guide shaft 92 so as to be movable left and right.

The support block 93 is formed by integrally connecting a pair of blocks 93a externally fitted on the guide shaft 92 by a connection plate 93b. A base plate 76 for forward and backward movement is mounted on the support block 93. Fixed. The support block 94 includes a pair of blocks 94 that are fitted around the guide shaft 92.
a are integrally connected by a connection plate 94b.
The drive pulley 96 fixed to the motor shaft of the left and right drive motor 95 attached to the right end of the left and right base plate 91 and the support bracket 97 attached to the left end of the left and right base plate 91 rotate. A timing belt 99 is stretched over a driven pulley 98 pivotably supported, and the timing belt 99 is fixed to a support block 94 by a fixing bracket 100.

By the way, as shown in FIGS.
The distal end of the piston rod of the evacuation air cylinder 102 disposed in the left-right direction is connected to a mounting plate 101 extending downward from the left end of the connecting plate 94b of the support block 94 via a floating joint 105. The base end of the evacuation air cylinder 102 is connected to a support plate 103 attached to a connecting plate 93b of the support block 93.
Is connected to the right end. Here, an origin position sensor 104 for detecting the origin position of the support block 94 in the left-right direction when forming the curtain fold 6 is provided on the base plate 91 for left-right movement. As a result, when the left and right drive motor 95 is driven to rotate, the support block 94 is moved to the left or right via the pulleys 96 and 98 and the timing belt 99, and is moved via the evacuation air cylinder 102. Since the support block 93 is also moved to the left or right at the same time, the curtain fold forming mechanism 25 and the front and rear moving mechanism 75 are simultaneously moved in the left and right direction.

Here, a brief description will be given of the left-right movement control for moving the left-right movement mechanism 90 in the left-right direction in synchronization with the sewing of the curtain fold 6, as shown in FIG. 1, FIG. 9 and FIG. A connecting rod 110 connected to 94 extends rearward, and an elongated light-shielding plate 111 is attached upward to a distal end of the connecting rod 110. On the other hand, a pair of optical X
The direction detection sensor 112 is provided adjacent to the left and right so that the detection light is shielded by the light shielding plate 111. When the X-direction feed plate 20 moves in the left-right direction during sewing of the curtain fold 6, the left-right drive motor 95 is rotated forward so that the pair of X-direction detection sensors 112 is always shielded from light by the light-shielding plate 111. By driving or reverse driving,
The curtain fabric 5 and the curtain fold remover 3 can be moved in the left-right direction in synchronization with each other.

Next, a description will be given of a work table 115 which is moved in the left-right direction in synchronization with the curtain fold forming mechanism 25 via the support block 94, and which can move up and down and back and forth with respect to the curtain fold formation mechanism 25. . FIG.
As shown in FIGS. 10, 13, and 18 to 19, the fixing plate 116 is horizontally attached to the support block 94,
Base ends of a pair of support members 117 are fixed to the fixing plate 116 before and after extending leftward, and four columns 118 are erected on the left end of the support member 117.
18, a lower plate 119 is mounted horizontally.
19, a table air cylinder 120 for vertically moving the work table 115 is fixed upward, and a middle plate 121 is horizontally fixed to a tip of a piston rod of the table air cylinder 120. Here, the lower plate 119 is moved so that the work table 115 can be moved up and down in a horizontal state.
The pair of guide units 122 attached to the
Guide pins 123 extending downward from 1 are fitted so as to be vertically movable.

Further, a pair of rail members 126 oriented in the front-rear direction is attached to the middle plate 121, and a slider 124 fixed to an upper plate 125 attached to the lower surface of the work table 115 is moved back and forth by these rail members 126. Engage as possible. Then, the work table 115 is set to 2
The first air cylinder 129 is supported by a support fitting 127 fixed to the middle plate 121 to move back and forth in stages.
The piston rod 129a of the first air cylinder 129
The second air cylinder 131 is supported by a support fitting 130 attached to the end of the second air cylinder 131, and the end of the piston rod 131 a of the second air cylinder 131 is connected to a vertical wall 132 fixed to the upper plate 125.

When the table air cylinder 120 is driven forward, the middle plate 121 rises, so that the work table 115 rises to a predetermined height position via the slide mechanism by the slider 124 and the rail member 126 and the upper plate 125. And air cylinder for table 1
The work table 115 is moved down for evacuation by the retraction drive 20. On the other hand, when the second air cylinder 131 is driven to retreat, the work table 115 moves forward to the position indicated by the two-dot chain line 115A in FIG.
When the air cylinder 129 is driven to retract, the work table 115 further moves forward to a position indicated by a two-dot chain line 115B.

As shown in FIGS. 5 and 18, the fold forming portion 115 formed by cutting the work table 115 is formed.
a, two left and right support pipes 133 for supporting the supplied curtain fabric 5 from below are provided in the same front-rear direction as the moving direction of the cloth holding plates 55 to 58, and the front ends thereof are respectively provided. It is fixed to the work table 115. These support pipes 133 do not interfere with the formation of folds by fitting into the notches 54 formed so as to correspond to the upper ends of the lower holding plates 50 to 53, respectively. I have. Further, on the upper surface of the support pipe 133, a plurality of minute air blowing holes 133a are formed in a straight line, and as shown in FIG. Pressurized air supplied from the air outlet 133a blows upward from the air outlet holes 133a and pushes up the curtain fabric 5 from below, so that the curtain fold 6
Can be formed on the upper side as much as possible.

Here, as described above, when the curtain fold forming mechanism 25 is turned upright by 90 °, the first and second air cylinders 12 are set in accordance with the formation position of the curtain fold 6.
By moving the work table 115 forward in two steps by selectively or in combination driving the working members 131, the support pipes 133 obstructing the rotation can be reliably retreated forward simultaneously, and furthermore, the retreat is performed. Sometimes, the curtain fabric 5 connected to the curtain fold 6 does not loosen downward.

Next, a clamp mechanism 135 for clamping the curtain cloth 5 when sewing the curtain folds 6 will be described with reference to FIGS. On the rear end of the support block 94, a left and right air cylinder 136 for moving both upper and lower clamps 142 and 143 described later in the left and right direction is attached to the left direction, and the tip of the piston rod of the left and right air cylinder 136. Are connected to a slide plate 137 slidably supported by the support block 94 in the left-right direction. The upper and lower clamps 142 and 143 are attached to the support plate 138 connected to the slide plate 137.
An up / down air cylinder 139 that switches between an upper clamp position and a lower retract position is mounted upward.
Here, switching means is constituted by the left and right air cylinders 136, the up and down air cylinders 139, and the like.

An air cylinder 141 for clamping is vertically fixed to an upper end of a connecting plate 140 connected to a tip end of a piston rod 139a of the air cylinder 139 for up and down. The clamping air cylinder 141 is a double-acting type, and is capable of simultaneously driving the upper and lower piston rods 141a and 141b to advance and retract. The upper clamp 142 is fixed to the upper piston rod 141a, and the lower clamp 143 is fixed to the lower piston rod 141b. When the clamping air cylinder 141 is driven in and out, the curtain cloth 5 is clamped by the upper and lower clamps 142 and 143. On the other hand, when the clamping air cylinder 141 is driven in and out, the clamping operation is released.

On the other hand, when the upper and lower air cylinders 139 are driven to retreat, the upper and lower clamps 142 and 143 move to the retracted position where they are lowered, so that the cloth holding plates 55 to 58 move toward the relay needle 16. And the retraction drive of the left and right air cylinders 136
Upper and lower clamps 142, 14 via slide plate 137
3 can be evacuated to the right. Next, the curtain hook supply device 150 for supplying the curtain hook 160 to the curtain fold 6 will be described with reference to FIGS.
This will be described with reference to FIGS.

The curtain hook supply device 150 is mounted on the upper side of the support block 78 of the front-rear movement mechanism 75 via the fixing plate 151, and the rear end of the curtain hook supply device 150 is supported by the bracket 152. On a base plate 153 attached to the fixed plate 151, a hook holder (corresponding to a hook storage portion) 154 for housing a plurality of horizontal curtain hooks 155 in a stacked state, and a lowermost stage (in the hook holder 154). (Corresponding to the endmost stage), and comprises a hook insertion machine 170 for extruding the curtain hooks 155 one by one, transporting the curtain hooks 6 to the formed curtain folds 6, and inserting them.

The hook holder 154 has a rectangular cylindrical shape extending vertically, and has a support member 1 attached to the base plate 153.
A plurality of horizontal curtain hooks 155 are accommodated in the stack 59 in a detachable manner with mounting screws 160 mounted therein. At the lower end of the hook holder 154, a take-out port 154a from which the curtain hooks 155 can be taken out one by one is formed. The take-out port 154a is always closed by the cover member 161, but the curtain hook 155 is taken out. Sometimes opening and closing air cylinder 1
The cover member 161 is rotated by the drive of 62, and the take-out port 154a is opened.

Next, the hook insertion machine 170 will be described. On the base plate 153 on the right side of the hook holder 154, a lotless type pushing air cylinder 171 (corresponding to a stroke type actuator) that pushes the curtain hook 155 to the position of the curtain fold 6 is disposed in the left-right direction. It is attached to the base plate 153 by support brackets 172 at both left and right ends. Immediately in front of the pushing air cylinder 171, an insertion member 173 extending in the left-right direction is guided by a pair of guides 176 so as to be movable in the left-right direction, and an engagement pin 177 attached to the right end of the insertion member 173 is provided. , Extrusion air cylinder 17
It is engaged with an engagement plate 178 attached to the first drive unit.

Thus, the pushing air cylinder 17
By the drive of No. 1, the insertion member 173 is driven to move in the left-right direction. On the front side of the insertion member 173, a positioning member 180 extending in the left-right direction is disposed,
It is supported by a guide block 181 so as to be movable in the left-right direction. A piston rod 182a of an adjusting air cylinder 182 for adjusting the position of the movable hook 157 of the curtain hook 155 is provided at the right end of the positioning member 180.
Are connected. Also, the stroke adjusting block 18
By mounting the stopper pin 184 in one of the through holes (not shown) formed in the front and rear direction in the front-rear direction, the driving stroke when the adjusting air cylinder 182 is driven can be adjusted.

Here, the curtain hook 155 is the same as that shown in FIG.
5. As shown in FIG. 26, an insertable adjustable hook made of synthetic resin, a hook body 156 and a cloth holding piece 156a integrally formed with the hook body 156.
And a movable hook 157 slidably supported by a hook body 156. The movable hook 157 is provided with an engaging piece 158 formed on a sliding portion 157a at the base end thereof.
By engaging with one of the racks 156b formed on the hook main body 156, the hook main body 156 can be moved in a predetermined direction and can be locked in the opposite direction.

That is, with the cover member 161, the take-out port 154a
Is closed, and the movable hook 157 is moved to the left by a predetermined distance by driving the adjusting air cylinder 182 to move the movable hook 157 to the hook body 156 for “A type” or “B”. "Type" can be adjusted. And the air cylinder 17 for pushing out
The insertion member 173 moves toward the curtain fold 6 by the drive of the first position. Here, as shown in FIG.
3, a holding portion 174 for holding the curtain hook 155 by vertically sandwiching the same and an expanding portion 175 for pushing the cloth holding piece 156 a against the hook body 156 are formed. During the movement, the cloth holding piece 156a is firstly pushed open by the expanding portion 175, and in this state, the curtain hook 155 is held by the holding portion 174. At this time, the take-out opening 154a is opened, and the curtain hook 155 is opened. Is transferred to the curtain fold 6.

Next, a support mechanism 19 for supporting the insertion member 173 extending toward the curtain fold 6 during the transfer thereof.
0 will be described with reference to FIGS. In the vicinity of the rotation mechanism 65 at the rear end of the support plate 79,
A pair of support blocks 191 oriented in the front-rear direction are fixed,
A support plate 192 is mounted on the upper surfaces of the support blocks 191, and a mounting plate 193 is vertically fixed to the right end of the support plate 192. Further, an upper guide block 194 is fixed to an upper end portion of the mounting plate 193, and a lower guide block 196 is fixed to a piston rod 195a of an elevating air cylinder 195 mounted upward to a lower end portion of the mounting plate 193. The lower guide block 196 is formed with a guide groove 196a for supporting the insertion member 173 while allowing the insertion member 173 to move.

That is, the insertion member 173 holding the curtain hook 155 is connected to both of the guide blocks 194 and 196.
, After moving to the stroke end, and when the curtain hook 155 is inserted into the curtain fold 6, the lower guide block 196 is raised by the advance driving of the lifting / lowering air cylinder 195, and the insertion member 173 The middle part is positioned at a predetermined position by the guide groove 196a.

That is, when the curtain fold forming mechanism 25 is turned upright, as shown in FIGS.
By driving the air cylinder 197 (see FIG. 13) for increasing the gap, the interval between the two sets of cloth holding plates 56 and 57 at the center of the four sets of cloth holding plates 55 to 58 is widened. The curtain hook 155 held by the insertion member 173 is inserted between these two sets of cloth holding plates 56 and 57 from the right side, and the curtain fold 6 is changed to the horizontal posture.
Is accurately supplied to the insertion position inside the inside. Then, when the curtain fold 6 is delivered to the relay needle 16, after the lower guide block 196 is lowered by the retraction drive of the lifting / lowering air cylinder 195, the insertion member 173 returns to the original position.

As shown in FIG. 4, a guard air cylinder 200 is disposed on the left side of the lockstitch sewing machine 2 in an obliquely inclined shape, and is attached to a mounting plate 201 mounted on the left side surface of the lockstitch sewing machine 2. Supported. An upper end of a thin plate-like guard member 202 is attached to a tip of a piston rod 200a of the guard air cylinder 200,
The lower end of the guard member 202 is located near the lower end of the sewing needle 14. The guard member 202 is always switched to the retracted position shown by the two-dot chain line, but is switched to the guard position shown by the solid line when the guard air cylinder 200 is driven, and the lower end of the guard member 202 is set at the needle upper position.
Protruding lower than the lower end of the sewing needle 14 near the lower end of
The curtain folds 6 on the left side of the left ends of the cloth holding plates 55 to 58 converted to the horizontal posture pass under the guard member 202, so that the curtain folds 6 can be smoothly moved to the sewing position without being caught by the sewing needles 14. Can be transported at once.

Next, the operation of the curtain fold removal sewing apparatus 1 including the method of sewing curtain folds will be described with reference to FIGS.
This will be described based on the schematic diagram shown in FIG. First, FIG.
As shown in (a), when setting the curtain fabric 5, the opening / closing air cylinder 61 and the table air cylinder 120 are driven respectively, and the lower holding plates 50 to 53 and the work table 115 are lowered. At the same time, the cloth holding plates 55 to 58 are equally spaced by the fold forming drive motor 37 so that the spacing in the front-rear direction of the cloth holding plates 55 to 58 is equal to the height of the fold of the curtain fold 6. At this time, the curtain fold forming mechanism 25 includes the front / rear drive motor 80 and the left / right drive motor 9.
By the drive of No. 5, it is located at the fold forming position which is the origin position in the front-back direction and the left-right direction.

In this initial state, the sewing start side of the upper end portion of the curtain cloth 5 is placed on the work table 115, so that the curtain cloth 5 is set at a predetermined position with respect to the cloth holding plates 55 to 58. At this time, the curtain fabric 5 is supported by the lower holding plates 50 to 53 and the support pipe 133, so that it does not hang down. Then, when a sewing start switch (not shown) is operated, a curtain fold creation operation is performed. That is, as shown in FIG. 32 (b), the lower holding plates 50 to 53 and the work table 115 are raised by driving the two air cylinders 61 and 120, so that the curtain cloth 5 is held by the cloth holding plates 55 to 58. Each of them is pressed and held at the same time, and at this time, pressurized air blown out from the air blowout holes 133 a of the support pipe 133 is supplied from below the curtain fabric 5.

Next, as shown in FIG. 32 (c), while the horizontal position of the reference cloth holding plate 55 is fixed by driving the fold forming drive motor 37, the other cloth holding plates 5
The cloth holding plates 55 to 58 form an upward curtain fold 6 composed of three folds by approaching the approach position while moving backward at equal intervals. At this time, since the lower end portions of the upper holding plates 45 to 48 are formed in a tapered shape, the curtain fabric portion located between the upper holding plates 45 to 48 is easily bent upward,
Receiving the upward pressurized air, the upward curtain fold 6 is reliably formed. And the first and second air cylinders 1
One or two of 29 and 131 are driven, and the work table 115 is retracted forward until the support pipe 133 is securely separated from the cloth holding plates 55 to 58 forward.

Next, as shown in FIG. 33A, the curtain fold forming mechanism 2 is driven by driving the air cylinder 69 for rotation.
5 is rotated to a standing state, and the cloth holding plates 55 to 58 are placed on the bed 11 in a horizontal state. That is, the posture of the curtain fold 6 is changed to the horizontal posture. At this time, the curtain hook supply device 150 is driven, and as described above,
The curtain hook 155 in a state where the cloth holding piece 156a is pushed open is moved to the left while being held by the insertion member 173, enters between the cloth holding plates 56 and 57 from the right side, and is converted into the horizontal posture. It is supplied to the inside of the pleats at the center of the curtain pleats 6 composed of three peaks with high precision.

Thereafter, as shown in FIG. 33B, the curtain fold forming mechanism 2 is driven by driving the front / rear drive motor 80.
5 and the curtain hook supply device 150 move forward in synchronization with each other, so that the curtain fold 6 sandwiched between the cloth holding plates 55 to 58 and the curtain hook 155 together with the curtain hook 155 are sewn on the lower side of the relay needle 16 as shown by a two-dot chain line. Move up to. The plurality of relay needles 16a to 16a are driven by driving the needle air cylinder 17.
16h falls. At this time, as shown in FIG. 30, the curtain hook 155 includes a plurality of relay needles 16a, 16b, 1
6e and the like, the cloth holding piece 156a is held while being pushed open, while the curtain folds 6 are held through the notches formed in the upper holding plates 45 to 48.

Then, in this state, after the lower guide block 196 is lowered, the insertion member 173 returns to the original predetermined initial position. Then, the lower holding plate 50 ~
53 only descend, as indicated by the dash-dot lines. That is, it moves forward. Next, as shown in FIG. 33 (c), the entire curtain fold forming mechanism 25 is moved backward by a predetermined amount by driving the front / rear drive motor 80, so that the upper holding plates 45 to 48 leave the curtain fold 6. Retreat.

Next, as shown in FIG. 34A, the curtain fold forming mechanism 25 is moved to the right evacuation position shown by a two-dot chain line in FIG. When moving, the cloth holding plates 55-5
8 is retracted to the right from the sewing position. In addition, presser foot 18
At the same time as lowering and pressing and holding the curtain folds 6,
The cloth holding piece 156a is delivered from the relay needle 16 to the presser foot 18 with the cloth holding piece 156a opened by the plurality of restraining members 165.

Next, after the clamp mechanism 135 is raised to the use position by the vertical air cylinder 139 and moved to the left clampable position by the left and right air cylinders 136, the clamp air cylinder 141 is driven. The curtain fabric portion near the sewing position is clamped by the upper and lower clamps 142 and 143, and the relay needle 16 is raised. Here, although not shown, the cloth placement surface 11 of the bed 11 is
a is provided with a support member having a predetermined height,
The lower curtain fabric 5 extending from the curtain fold 6 and the curtain hook 155 are supported by the support member in a lifted state, and the curtain hook 155 is held in a horizontal state.

Then, in this state, sewing of the curtain fold 6 is started. That is, as shown in FIG. 35, in this sewing, the sewing needle 14 is driven up and down, and the X-direction feed plate 20 and the Y-direction feed plate are respectively driven to feed based on the sewing data. A straight stitch 205 is sewn between the holding piece 156a and the hook body 156, and thereafter a bar-tack stitch 206 is formed.
Here, when the straight stitch 205 is formed, the left and right drive motors 9 are controlled based on a detection signal from the X-direction detection sensor 112.
5 is driven, and the curtain fold forming mechanism 25, the work table 115, and the curtain hook supply device 150 are moved in the left and right direction in synchronization with the movement of the curtain fold 6 in the X direction.

Thus, while the curtain folds 6 with the curtain hooks 155 are being sewn, the formation of the next curtain folds 6 and the supply of the curtain hooks 155 to the curtain folds 6 are simultaneously executed by the curtain fold formation mechanism 25. And the cycle time of curtain fold formation can be shortened. Here, when the bartacking seam 206 is formed after the straight seam 205, the curtain cloth 5 is moved forward, that is, in the direction toward the curtain fold forming mechanism 25. Does not affect the forming operation. On the other hand, when sewing is started, the curtain fold formation mechanism 25 returns to the front fold formation position, and then is rotated and returned to the horizontal state,
Further, the cloth holding plates 55 to 58 are equally spaced to form the next curtain fold 6. At this time, the work table 115 has also returned to the fold forming position.

Next, as shown in FIG. 34 (b), the curtain fold forming mechanism 25 is changed from the state shown in FIG. 32 (a) to FIGS. 32 (b) to 32 (c) and FIG.
33 (a) to FIG. 33 (a), the posture of the formed curtain fold 6 is changed from a vertical posture to a horizontal posture. However, the clamp state by the upper and lower clamps 142 and 143 is such that the curtain cloth 5 is
When pressed and clamped by 5 to 58 (see FIG. 23B), the clamp mechanism 135 is released and moves to the lower retreat position. When this state is substantially reached, since the sewing of the curtain folds 6 has been completed, the presser foot 18 is raised, and the restraint of the cloth holding piece 156a in the open state is released.

Next, as shown in FIG. 34 (c), the guard member 202 is switched to the guard position, the discharge air cylinder 22 is driven, and the discharge plate 21 moves forward, so that the curtain fold 6 Is discharged below the front end of the bed 11 without being caught by the sewing needle 14. Thereafter, as described above, FIGS. 33 (a) to 33 (c) and FIGS. 34 (a) to 34 (c) are repeatedly executed, and as shown in FIG. Then, a plurality of curtain folds 6 to which the curtain hooks 155 are attached are sequentially formed at predetermined intervals.

By the way, as the curtain hook 155,
As shown in FIG. 37, when the curtain is attached, the hanging dimension K from the upper end of the curtain (shown by a dashed line) to the upper end of the hook body 156 is a curtain hook having a so-called “under can dimension” of “50 mm”. 155A, "75mm" curtain hook 155B, "90mm" curtain hook 1
If it differs depending on the type such as 55C, the pushing air cylinder 171 may be constituted by a stroke type electromagnetic actuator, and the pushing amount may be adjusted based on the dimension K.

Further, as the curtain hook 155, an "A type" steel hook 155 shown in FIG.
38B, and may be a “B type” steel hook 155SB shown in FIG. 38B. In this case, the curtain hook supply device 150 accommodates these curtain hooks 160SA and 160SB. In addition to providing the hook holder 154 that can be used, the positioning member 180 may be omitted.

As described above, the curtain fold remover 3 sequentially forms the curtain folds 6 at a plurality of places at appropriate intervals on one end of the curtain fabric 5 in the horizontal posture.
Curtain fold 6 formed by this curtain fold remover 3
And a curtain hook supply device 150 that supplies a curtain hook 155 of an insertion type to the curtain fold 6 held by the lock sewing machine 2. The curtain hook supply device 150 includes a hook holder 154 and a hook insertion machine 170.
5, the cloth holding piece 156 a is pushed open, the holding member 174 holds the curtain hook 155 and inserts the curtain fold into the curtain fold, and a push-out air cylinder 171 that drives the insertion member 173 forward and backward. Sewing machine 2
Is a feed plate 20, a presser foot 18, and a plurality of relay needles 16a to 16
h, and the plurality of relay needles 16 a to 16 h move the cloth holding piece 156 a of the curtain hook 155 to the expanded portion 175.
Relay needles 16a, 16b, 16e held open by
And the presser foot 18 includes a plurality of restraining members 165 for holding the cloth holding piece 156a of the curtain hook 155 in the opened state by the expanding portion 175.
55 is inserted into the curtain fold 6 in a state where the cloth holding piece 156a is pushed open, and then a plurality of relay needles 16a, 16
Since the cloth holding piece 156a is held open by the b, 16e and the plurality of restraining members 165, the curtain fold 6 can be easily detached by the lockstitch sewing machine 2 with the curtain hook 155 attached detachably. Since the cycle time of sewing a curtain fold with a curtain hook can be shortened, productivity is improved.

Here, as a modification of the above embodiment,
After the curtain folds 6 are formed by the curtain fold formation mechanism 25, the curtain hooks 155 are inserted into the curtain folds 6 by the curtain hook supply device 150 while the posture is changed to the horizontal posture and moved to the sewing position. In this case, the work time for inserting the curtain hook 155 can be eliminated, and the productivity can be further improved. Also, a plurality of parallel cloth holding plates are provided horizontally, and a curtain fold remover or a curtain hook supply device for forming curtain folds in a horizontal position by these cloth holding plates on the vertically supplied curtain cloth is provided. The present invention may be applied to various curtain fold removal sewing apparatuses which are sewn by a sewing machine.

[0073]

According to the curtain fold sewing method of the first aspect, in the curtain fold sewing method of sewing the curtain fold formed by the curtain fold remover with the sewing machine, the curtain fold formed by the curtain fold remover is sewn by the sewing machine. When sewing with, insert the insertion type curtain hook into the curtain fold, sew the curtain fold with the curtain hook piece of the curtain hook open, and then release the restraint to open the curtain hook piece of the curtain hook Therefore, the insertion-type curtain hook can be attached with the cloth holding piece hooked on the seam.

According to the second aspect of the present invention, there is provided a curtain hook supplying apparatus for supplying an insertion type curtain hook to a curtain fold prior to sewing a curtain fold formed by a curtain fold remover. An insertion member having a hook receiving portion and a hook insertion device, the hook insertion device having a holding portion and an expanding portion at a distal end portion, holding a curtain hook, and inserting the curtain hook into a curtain fold; The curtain hook inserted into the curtain fold is held in a state in which the cloth holding piece is pushed open, and the curtain fold is easily attached and detached when the curtain hook is detachably mounted. Can be sewn.

According to the third aspect of the present invention, the same effect as in the second aspect is obtained, but the curtain hook is an adjustable hook having a movable hook attached to the hook body so as to be adjustable. The hook insertion machine has a positioning member for positioning the movable hook with respect to the hook main body, and a stroke type actuator for driving the positioning member, so that the mounting position of the movable hook with respect to the hook main body can be positioned via the positioning member, The adjustable hook can be easily switched between “A type” and “B type”.

According to the curtain fold removing and sewing apparatus of the fourth aspect, a curtain fold remover for sequentially forming curtain folds at a plurality of positions at appropriate intervals on one end of the curtain material in a horizontal position, and the curtain fold remover. A sewing machine for sewing a curtain fold formed by a sewing machine, and a curtain fold removing and sewing apparatus including a curtain hook supply device for supplying a curtain hook of an insertion type to the curtain fold held by the sewing machine, The curtain hook supply device includes a hook receiving portion and a hook insertion device, the hook insertion device having a holding portion and an expanding portion at a distal end portion, and an insertion member for inserting a curtain hook into a curtain fold. The sewing machine includes a feed plate, a holding member, and a plurality of relay needles. Including a relay needle for holding the cloth holding piece of the ten hook in the opened state at the expanded portion, the holding member includes a plurality of restraining members for holding the cloth holding piece of the curtain hook in the opened state at the expanded part. Therefore, the curtain hook is inserted into the curtain fold in a state where the cloth holding piece is pushed open, and then the cloth holding piece is held in a state where the cloth holding piece is pushed and opened by a plurality of restraining members having a plurality of relay needles and holding members. The sewing machine can easily sew the curtain fold with the curtain hook detachably attached, and the cycle time for sewing the curtain fold with the curtain hook can be shortened, thereby improving productivity. .

[Brief description of the drawings]

FIG. 1 is a side view of a curtain fold removal sewing apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of the sewing machine for removing curtain folds.

FIG. 3 is an enlarged side view of the lockstitch sewing machine.

FIG. 4 is an enlarged front view of the lockstitch sewing machine.

FIG. 5 is a perspective view of a curtain fold forming mechanism.

FIG. 6 is a plan view of a curtain fold forming mechanism.

FIG. 7 is a side view of a curtain fold forming mechanism.

FIG. 8A is an explanatory view of forming a three-fold curtain fold by a plurality of cloth holding plates, and FIG. 8B is an explanatory view of forming a two-fold curtain fold.

FIG. 9 is a plan view of a curtain fold forming apparatus.

FIG. 10 is a diagram corresponding to FIG. 8 showing an internal mechanism.

FIG. 11 is an enlarged side view of the curtain fold forming apparatus.

FIG. 12 is a diagram corresponding to FIG. 10 when the curtain fold forming mechanism is turned upright.

FIG. 13 is an enlarged front view of the curtain fold forming apparatus showing an internal mechanism.

FIG. 14 is a diagram corresponding to FIG. 12, schematically showing an internal mechanism.

FIG. 15 is an enlarged plan view of a left-right moving mechanism.

FIG. 16 is a vertical sectional view taken along line D-D of FIG. 15;

17 is a vertical sectional view taken along the line EE in FIG. 15;

FIG. 18 is an enlarged plan view of a work table.

FIG. 19 is a side view of a work table and a clamp mechanism.

FIG. 20 is a front view of the curtain hook supply device.

FIG. 21 is a partial plan view of the curtain hook supply device.

FIG. 22 is a partial plan view of the curtain hook supply device.

FIG. 23 is an explanatory diagram illustrating the arrangement of FIGS. 21 and 22.

FIG. 24 is a partial side view of the hook holder.

FIG. 25 is a partial plan view of a main part of the curtain hook supply device.

FIG. 26 is an enlarged plan view of a curtain hook.

FIG. 27 is a plan view of a support mechanism.

FIG. 28 is a front view of a support mechanism.

FIG. 29 is a front view of a support mechanism.

FIG. 30 is a plan view of the presser foot when the curtain hook is supplied to the sewing position.

FIG. 31 is a longitudinal sectional side view of the cloth holding plate when the curtain hook is inserted into the curtain fold.

FIG. 32 is an operation explanatory view of curtain fold formation;
(A) is an initial state, (b) is a pressing and holding state of curtain cloth, and (c) is a state where curtain folds are formed.

33 (a) and 33 (b) are explanatory views of the operation subsequent to the formation of curtain folds, where (a) is a posture changing state, (b) is a retracted state of a lower holding plate, and (c) is a retracted state of both upper and lower holding plates.

34 (a) and 34 (b) are explanatory views of the operation following the curtain fold formation, in which (a) is a fold sewing state and the next fold formation state, and (b)
Shows the sewing completed state and the next fold formation completed state, and (c) shows the discharged state of the sewn curtain fold.

FIG. 35 is an explanatory diagram of sewing of curtain folds.

FIG. 36 is a perspective view of a curtain on which a plurality of curtain folds are sewn.

FIG. 37 is an explanatory diagram for explaining a difference in hanging dimension depending on a type of a curtain hook.

38A is a front view of an “A type” steel hook, and FIG. 38B is a front view of a “B type” steel hook.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 sewing machine for removing curtain folds 2 sewing machine 3 sewing machine for removing curtain folds 5 curtain fabric 6 curtain folds 16 relay needle 18 presser foot 20 X-direction feed plate 25 curtain fold formation mechanism 150 curtain hook supply device 154 hook holder 155 curtain hook 155SA steel Hook 155SB Steel hook 156 Hook main body 156a Cloth holding piece 157 Movable hook 165 Restraining member 170 Hook insertion machine 171 Pushing air cylinder 173 Inserting member 174 Holding section 175 Expanding section 180 Positioning member 182 Adjusting air cylinder

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tomoyuki Fujita 15-1 Naeshiro-cho, Mizuho-ku, Nagoya

Claims (4)

[Claims] 1. A curtain fold sewing method for sewing a curtain fold formed by a curtain fold remover with a sewing machine, wherein the curtain fold formed by the curtain fold remover is sewn by a sewing machine. A curtain fold sewing method, comprising: inserting the curtain fold into a curtain fold; sewing the curtain fold in a state where the cloth holding piece of the curtain hook is opened; 2. A curtain hook supply device for supplying a curtain hook of an insertion type to a curtain fold prior to sewing a curtain fold formed by a curtain fold remover, wherein the curtain hooks are stacked. A hook accommodating section for accommodating the curtain accommodating section, a hook inserting machine for extruding a curtain hook at an endmost stage in the hook accommodating section and inserting the curtain hook into the curtain fold, wherein the hook inserting machine includes a holding section for holding the curtain hook and a curtain hook. An insertion member having an expanding portion for pushing the cloth holding piece open at the distal end portion, holding the curtain hook, and inserting the cloth holding piece with the expanding portion into the curtain fold while keeping the cloth holding piece open, and driving the insertion member forward and backward A curtain hook supply device, comprising: 3. The curtain hook is an adjustable hook having a movable hook attached to a hook body so as to be position-adjustable, wherein the hook insertion machine includes a positioning member for positioning the movable hook with respect to the hook body. The curtain hook supply device according to claim 2, further comprising a stroke type actuator that drives the positioning member. 4. A curtain fold remover for sequentially forming curtain folds at a plurality of positions at appropriate intervals on one end of a curtain material in a horizontal posture, and a curtain fold formed by the curtain fold remover is sewn. What is claimed is: 1. A curtain fold removing and sewing apparatus comprising: a sewing machine; and a curtain hook supplying apparatus for supplying a curtain hook of an insertion type to a curtain fold held by the sewing machine. A hook accommodating portion for accommodating the curtain hook, a hook inserting machine for extruding a curtain hook at an endmost stage in the hook accommodating portion and inserting the curtain hook into a curtain fold, wherein the hook inserting machine comprises a holding portion for holding the curtain hook and a curtain. At the front end, there is an enlarged portion that pushes the cloth holding piece of the hook open, and holds the curtain hook to push the cloth holding piece with the expanded portion. The sewing machine includes an insertion member that is inserted into the curtain fold while being opened, and a stroke actuator that drives the insertion member to move forward and backward. The sewing machine includes a feed plate that feeds a workpiece, and a presser that holds the workpiece on the feed plate. A member, and a plurality of vertically movable relay needles that are restrained until the curtain fold transferred from the curtain fold remover onto the feed plate is pressed by the pressing member, wherein the plurality of relay needles hold a cloth of a curtain hook. Including a relay needle that holds the piece open in the expanded portion, the pressing member includes a plurality of restraining members for holding the cloth holding piece of the curtain hook in the open state in the expanded portion, A sewing machine for removing curtain folds, comprising: