WO2012032615A1

WO2012032615A1 - Fly serging device

Info

Publication number: WO2012032615A1
Application number: PCT/JP2010/065392
Authority: WO
Inventors: 敏昭沢田; 春巳高岸
Original assignee: Ykk株式会社
Priority date: 2010-09-08
Filing date: 2010-09-08
Publication date: 2012-03-15
Also published as: MX2013002546A; MX345841B; CN103201420B; TWI447279B; CN103201420A; TW201211341A

Abstract

Provided is a fly serging device for which the cost of device production can be reduced by eliminating high precision flat surfacing of the table. The device is provided with a sewing machine part (20) that serges a fly (F) while also advancing the fly (F), and a fly-rotating device (30) that rotates the fly (F) that is advanced by the sewing machine part (20). The fly-rotating device (30) is provided with a curve control unit (50) that controls the rotation of the fly (F) and a lifting device (40) for raising and lowering the curve control unit (50). The curve control unit (50) is provided with a first protrusion (84) that pricks and presses the surface of the fly (F) and serves as the center of rotation for the fly (F); a second protrusion (92) that pricks and presses the surface of the fly (F) and is provided so that the base end rotates around the first protrusion (84) as the center; and a sensor (70) that detects that the rotation angle of the second protrusion (92) has reached a prescribed angle.

Description

Fly surging equipment

This invention relates to a fly surging apparatus for performing fringe stitching (surging) of a rectangular piece of fabric.

Conventional fly surging devices include a table, a frame standing on the table, a bracket extending in one direction from the upper end of the frame in parallel to the upper surface of the table, and a cylinder installed on the upper surface of the bracket. And a rotation angle measuring device, a plate-like vertical movement member fixed to the rod end of the cylinder that can extend and contract in the vertical direction through the bracket, and a vertical movement member that is rotatably supported through the vertical movement member A first rotating shaft, a disk-shaped pressing rotating member fixed to the lower end of the first rotating shaft via a collar, and a horizontally projecting outward from the upper end of the first rotating shaft on the same diameter. A second rotation shaft that is provided so as to be interlocked with the measurement unit of the rotation angle measuring device and is rotatably supported by the bracket, and a rotation shaft support member that is connected to the lower end of the second rotation shaft, Known to have Are (e.g., see Patent Document 1).

Japanese Unexamined Patent Publication No. 2007-014556

However, in the fly surging device described in Patent Document 1, the press rotating member rotates while pressing the fly with the entire pressing surface of the pressing rotating member, and therefore, when the upper surface of the table on which the fly is placed is not flat, There is a possibility that the pressing rotation member does not rotate normally, and in order to solve it, the upper surface of the table has to be processed into a high-precision plane, and the manufacturing cost has increased.

The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a fly surging apparatus that can reduce the manufacturing cost of the apparatus by eliminating high-precision planar processing on the table. .

The above object of the present invention can be achieved by the following constitution.
(1) A sewing machine that performs edge sewing of a fly made of a rectangular fabric piece and sends the fly, and a fly rotating device that rotates the fly sent by the sewing machine, and is linear and arcuate to the fly. A fly surging device that performs edge stitching, wherein the fly rotation device includes a curve control unit that controls rotation of the fly and a lifting device that raises and lowers the curve control unit, and the curve control unit pushes the surface of the fly. The first protrusion that is pushed to become the center of rotation of the fly, the second protrusion that pushes against the surface of the fly and the rotation angle of the second protrusion is provided at the base end portion to rotate about the first protrusion. A fly surging device comprising: a sensor for detecting that the angle has been reached.
(2) The fly surging device according to (1), further comprising a rotation driving device that returns the second protrusion to an initial position before the rotation.
(3) The second protrusion is provided on a link member that is rotatable about the rotation axis, and the first protrusion is disposed on the axis of the rotation axis. (1) or (2) Fly surging equipment.

According to the fly surging apparatus of the present invention, the curve control unit is provided so as to rotate around the first protrusion at the base end portion, with the first protrusion that pushes the surface of the fly and becomes the rotation center of the fly, Since the second protrusion that pushes the surface of the fly and the sensor that detects that the rotation angle of the second protrusion has reached a predetermined angle, the pressing rotation member faces the fly like a conventional device. There is no contact. Thereby, since it is not necessary to perform a highly accurate plane process to a table, the manufacturing cost of an apparatus can be reduced.

It is a perspective view for demonstrating one Embodiment of the fly surging apparatus which concerns on this invention. It is a front view of the fly surging apparatus shown in FIG. It is a principal part expanded sectional view of the fly surging apparatus shown in FIG. It is the enlarged view which looked at the rack and pinion shown in FIG. 3 from upper direction. It is an enlarged front view of the fly surging device showing a state before the first and second protrusions push the fly. It is an enlarged front view of the fly surging device showing a state where the curve control unit is lowered and the first and second protrusions push the fly. It is an enlarged front view of the fly surging device showing a state where the fly and the link member are rotated. It is an enlarged front view of the fly surging device showing a state where the curve control unit is raised and the first and second protrusions are separated from the fly. It is a plane schematic diagram which shows the state by which the fly was set to the predetermined position below a fly rotation apparatus. FIG. 6 is a schematic plan view showing a state in which the fly guide is retracted and one short side of the fly is sewed linearly by the sewing machine portion. FIG. 6 is a schematic plan view showing a state in which the curve control unit is lowered and arc-shaped edge stitching is performed from one short side to one long side of the fly by the sewing machine part. FIG. 5 is a schematic plan view showing a state where the curve control unit is raised and one long side of the fly is linearly sewn by the sewing machine part. It is a plane schematic diagram which shows the state by which the fly with which edge sewing was performed is carried out and the next fly is supplied. It is a schematic perspective view which shows the modification of a rotation drive device.

Hereinafter, an embodiment of a fly surging apparatus according to the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, the fly surging apparatus 10 according to the present embodiment performs edge stitching of the fly F and sends the fly F to the table 11 on which the fly F is set in order to edge stitch the fly F. The sewing machine unit 20 includes a frame 12 erected on the table 11, and a fly rotating device 30 that is provided at the upper end of the frame 12 and rotates the fly F fed by the sewing machine unit 20.

Further, on the upper surface of the table 11, a fly guide 13 is installed to guide the fly F supplied from a fly supply device (not shown) to a predetermined position below the fly rotation device 30.

As shown in FIG. 1, the sewing machine unit 20 includes a pair of sewing needles 21 that sew the fly F, a sewing machine foot 22 that forms a mechanism for feeding the fly F, and a cutting (not shown) that cuts the edge of the fly F. A blade.

The fly rotation device 30 includes a curve control unit 50 that controls the rotation of the fly F, and a lifting device 40 that moves the curve control unit 50 up and down.

The lifting device 40 is attached to the front surface of the upper end portion of the frame 12, and extends vertically. A guide portion 41 that extends in the vertical direction, a top plate 42 that is attached to the upper end portion of the guide portion 41, and a top plate 42. A first cylinder device 43 having a rod 43a for sliding, and a slide portion 44 provided on the guide portion 41 so as to be slidable in the vertical direction, attached to the lower end of the rod 43a of the first cylinder device 43, and to which the curve control unit 50 is attached. And comprising. And in the raising / lowering apparatus 40, when the rod 43a of the 1st cylinder apparatus 43 advances / retreats, the slide part 44 slides up and down, and the curve control unit 50 is raised / lowered.

As shown in FIGS. 1 to 3, the curve control unit 50 is attached to the front surface of the slide portion 44 of the elevating device 40 so as to be parallel to the table 11 with a predetermined interval in the vertical direction. A third bracket 51-53, an arm member 54 rotatably supported between the first and

second brackets

51, 52, and a link member rotatably supported between the second and

third brackets

52, 53. 55, a rotation driving device 60 that is provided on the first bracket 51 and rotates the arm member 54, and is attached to the end of the first bracket 51 via a support member 56. The rotation angle of the link member 55 is a predetermined angle. A proximity switch (sensor) 70 that detects that the angle has been reached.

The arm member 54 and the link member 55 are provided so as to be rotatable about a rotation axis, and the rotation axis includes a first rotation shaft 64 and a second rotation shaft 82 arranged on a coaxial line to be described later. ing.

As shown in FIGS. 3 and 4, the rotary drive device 60 is provided in a rectangular parallelepiped case 61 fixed on the first bracket 51, and in the case 61, and advances and retreats along the longitudinal direction of the first bracket 51. A second cylinder device 62 having a rod 62a, a rack 63 formed on a side surface of the rod 62a, a first rotating shaft 64 that is rotatably supported by the first bracket 51 and arranged along the vertical direction, A pinion 65 is formed at the upper end portion of the first rotation shaft 64 and meshes with the rack 63, and the base end portion of the arm member 54 is fixed to the lower end portion of the first rotation shaft 64. In the rotary drive device 60, by introducing air into the second cylinder device 62, a force is applied to the rod 62a to retreat itself (direction approaching the guide portion 41), the rod 62a operates, and the pinion 65 and arm The member 54 is rotated. Further, by pulling out the air from the second cylinder device 62, the force of retreating itself from the rod 62a is lost, and the rod 62a moves forward (in a direction away from the guide portion 41) following the rotation of the pinion 65 and the arm member 54. )

Further, as shown in FIG. 3, the second and

third brackets

52 and 53 are rotatably supported by

rolling bearings

81a and 81b so that a second rotating shaft 82 arranged along the vertical direction is supported. A base end portion of the link member 55 is fixed to an intermediate portion of the second rotation shaft 82. As a result, the link member 55 can rotate around the second rotation shaft 82. The second rotating shaft 82 is disposed on the same axis as the first rotating shaft 64.

A disc-shaped fly pressing body 83 is integrally formed at the lower end of the second rotating shaft 82 with the second rotating shaft 82 as an axis center. A first protrusion 84 that is the center of rotation of the fly F is formed by pushing the surface of F. Therefore, the first protrusion 84 is disposed on the same axis as the first rotation shaft 64 and the second rotation shaft 82, and the link member 55 is configured to rotate around the first protrusion 84.

In addition, a fitting convex portion 85 having a circular shape in plan view is formed at the center of the upper surface of the fly pressing body 83, and this fitting portion 85 has a circular shape in plan view formed on the lower surface of the third bracket 53. The fitting recess 57 is rotatably fitted. Thereby, since the rotation of the fly pressing body 83 is guided by the fitting recess 57, the fly pressing body 83 rotates smoothly around the second rotation shaft 82.

Further, a step portion 86 is formed on the outer peripheral surface of the fly pressing body 83 over the entire circumference. An annular fly press portion 87 for pressing the fly F from above is provided on the step portion 86 from above. It is fitted on the outer periphery of the pressing body 83 so as to be rotatable and vertically movable.

As shown in FIGS. 1 and 3, an interlocking pin 88 is erected upward at an intermediate portion of the link member 55, and the upper portion of the interlocking pin 88 contacts the left side surface of the arm member 54. It is configured as follows. For this reason, the link member 55 rotates when the interlocking pin 88 is pressed against the left side surface of the arm member 54 rotated by the rotation driving device 60. In the present embodiment, the rotation driving device 60 moves the arm member 54 clockwise in FIG. 12 in order to return the link member 55 rotated by the feed force of the sewing machine portion 20 to the initial position before the rotation. Rotate to The initial position is a position where the link member 55 is orthogonal to the longitudinal direction of the second and

third brackets

52 and 53.

Further, as shown in FIGS. 1 to 3, a pressure rod 91 disposed along the vertical direction is attached to the distal end portion of the link member 55, and a fly F is attached to the distal end surface of the pressure rod 91. A second protrusion 92 that pushes against the surface of is formed. Accordingly, the feed force of the sewing machine unit 20 is transmitted to the link member 55 via the fly F and the pressing rod 91, and the link member 55 is rotated counterclockwise in FIG. The second protrusion 92 is formed at the same height as the first protrusion 84.

Further, a fly pressing piece 93 made of an L-shaped plate member is attached to the left side surface 55L of the distal end portion of the link member 55, and a second protrusion 92 is formed on the lower surface portion of the fly pressing piece 93. A notch 93a that faces downward is formed.

Further, as shown in FIGS. 1 and 2, the proximity switch 70 is attached to the support member 56 with its detection portion facing downward, and is a link member that is rotated 90 ° counterclockwise in plan view from the initial position. It arrange | positions in the position which detects the right side 55R of 55 (refer FIG. 7). The proximity switch 70 includes a cable 71 that transmits a detection signal to a control device (not shown).

In the fly surging apparatus 10 configured as described above, when the link member 55 is rotated counterclockwise by the feed force of the sewing machine unit 20 (see FIG. 11), the left side surface of the arm member 54 is pressed against the interlocking pin 88. Then, the arm member 54 is rotated together with the link member 55. Further, when the arm member 54 is rotated clockwise by the rotation driving device 60 in order to return the link member 55 to the initial position (see FIG. 12), the interlocking pin 88 is pushed against the left side surface of the arm member 54. Then, the link member 55 is rotated together with the arm member 54.

Also, as shown in FIG. 11, the link member 55 rotates around the first protrusion 84, whereby the second protrusion 92 rotates around the first protrusion 84, and as shown in FIG. 55 rotates in the reverse direction around the first protrusion 84, thereby returning to the initial position before the second protrusion 92 rotates.

The left side surface of the arm member 54 and the link member 55 is a side surface facing the clockwise direction of the arm member 54 and the link member 55, and the right side surface is the counterclockwise rotation direction of the arm member 54 and the link member 55. It is the facing side.

Next, the operation of the fly surging apparatus 10 of this embodiment will be described with reference to FIGS.

First, as shown in FIGS. 5 and 9, the fly F supplied from a fly supply device (not shown) is guided by the fly guide 13 and set at a predetermined position below the fly rotation device 30. Next, as shown in FIG. 10, after the fly guide 13 moves backward, the fly F is moved in the straight direction by the feed force of the sewing machine portion 20, and one short side of the fly F is linearly formed by the sewing machine portion 20. The edge is sewn. At this time, the curve control unit 50 is disposed at the raised position. In addition, the code | symbol S in a figure is an edge sewing part.

Next, when one short side of the fly F is sewn at a predetermined length, the curve control unit 50 is lowered by the elevating device 40 as shown in FIG. The second protrusion 92 is pushed. Accordingly, as shown in FIG. 11, the fly F and the link member 55 are rotated counterclockwise around the first protrusion 84 by the feed force of the sewing machine portion 20, and one of the fly F is moved by the sewing machine portion 20. Arc-shaped edge stitching is performed from the short side to one long side. At this time, since the fly F is being held by the fly holding portion 87 and the fly holding piece 93, the fly F is stably rotated without being displaced.

Next, as shown in FIG. 7, when the fly F and the link member 55 rotate 90 ° and the right side surface 55R of the link member 55 is detected by the proximity switch 70, as shown in FIG. 50 is raised by the elevating device 40, and the first protrusion 84 and the second protrusion 92 are separated from the surface of the fly F. As a result, the rotation of the fly F and the link member 55 is stopped, and the fly F is moved in the straight direction by the feed force of the sewing machine portion 20 as shown in FIG. The long sides are sewn in a straight line. At this time, in the raised curve control unit 50, the rotated link member 55 is rotated 90 ° clockwise by the arm member 54 and returned to the initial position.

Next, as shown in FIG. 13, the fly F subjected to edge stitching is carried out of the device 10 by a carry-out device (not shown), and thereafter, the next fly F is guided by the fly guide 13 and is operated as a fly rotation device. It is set at a predetermined position below 30. Thereafter, by repeating the above operation, the edge F is fed to the fly F supplied to the device 10.

As described above, according to the fly surging apparatus 10 of the present embodiment, the curve control unit 50 pushes the surface of the fly F to be the first protrusion 84 that becomes the rotation center of the fly F, and the base end portion is the first. A link member 55 provided to rotate about the protrusion 84, a second protrusion 92 provided at the tip of the link member 55 and pushing against the surface of the fly F, and the fly F via the second protrusion 92 And a sensor 70 that detects that the rotation angle of the rotating link member 55 has reached a predetermined angle. Therefore, the pressing rotation member does not come into surface contact with the fly F as in the conventional device. Thereby, since it is not necessary to perform highly accurate plane processing to the table 11, the manufacturing cost of the apparatus 10 can be reduced.

Further, as a modification of the rotation driving device 60, the arm member 54 may be directly rotated by the drive shaft 101 of the servo motor 100 as shown in FIG. In this case, the arm member 54 pushes the interlocking pin 88 erected on the link member 55, rotates the link member 55, and returns to the initial position. Thereafter, the drive shaft 101 rotates in the opposite direction, rotates the arm member 54 in the opposite direction, and returns to the initial position of the arm member 54 indicated by a two-dot chain line.

In addition, this invention is not limited to what was illustrated to the said embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.
For example, in the above-described embodiment, the first protrusion and the second protrusion have a triangular shape with a sharp point, but the shape is arbitrary as long as the fly F can be pushed and pressed, and may be, for example, a hemispherical protrusion. .
In the above embodiment, the proximity switch 70 detects the right side surface 55 </ b> R of the link member 55, but is not limited thereto, and may detect the pressing rod 91 attached to the link member 55. .
Further, in the above embodiment, the interlocking pin 88 is erected on the link member 55, but is not limited thereto, and may be provided so as to protrude downward on the arm member 54. In this case, the interlocking pin 88 is disposed so as to contact the right side surface 55 </ b> R of the link member 55.
Further, the arm member 54 and the interlocking pin 88 may be deleted, and the first rotating shaft 64 and the second rotating shaft 82 may be used as an integral rotating shaft, and the link member 55 may be attached to the rotating shaft. In this case, when the first protrusion 84 and the second protrusion 92 push against the fly F, the link member 55 rotates counterclockwise with the rotation of the fly F, and the rod 62a moves backward to move together with the rotating shaft. Rotate around and return to the initial position.

DESCRIPTION OF SYMBOLS 10 Fly surging apparatus 20 Sewing machine part 30 Fly rotation apparatus 40 Lifting apparatus 50 Curve control unit 55 Link member 60 Rotation drive apparatus 70 Proximity switch (sensor)
82 Second rotation axis (rotation axis)
83 Fly pressing body 84 1st protrusion 91 Rod 92 2nd protrusion F Fly

Claims

A sewing machine portion (20) for performing edge sewing of the fly (F) made of a rectangular fabric piece and sending the fly;
A fly rotation device (30) for rotating the fly sent by the sewing machine unit,
A fly surging device (10) for performing linear and arc-shaped edge sewing on the fly,
The fly rotation device includes:
A curve control unit (50) for controlling the rotation of the fly;
An elevating device (40) for elevating and lowering the curve control unit,
The curve control unit is
A first protrusion (84) that pushes the surface of the fly and becomes the center of rotation of the fly;
A second protrusion (92) provided to rotate about the first protrusion at a proximal end portion and pushing against a surface of the fly;
And a sensor (70) for detecting that the rotation angle of the second protrusion has reached a predetermined angle.
The fly surging device according to claim 1, further comprising a rotation driving device (60) for returning the second protrusion (92) to an initial position before the rotation.
The second protrusion (92) is provided on a link member (55) that is rotatable about a rotation axis (82),
The fly surging device according to claim 1 or 2, wherein the first protrusion (84) is disposed on an axis of the rotation shaft.