TWI447279B - Placket - Google Patents

Description

Threshold roughing device

The present invention relates to a sill roughing device for performing a hem (rough seam) comprising a sill of a rectangular piece of cloth.

As a prior sill roughing device, it is known to have: a platform, a frame erected on the platform, a bracket extending from the upper end of the frame parallel to the platform and extending in one direction, a cylinder-shaped upper and lower movable member that is fixed to a rod end of a cylinder that can be expanded and contracted in the vertical direction, and a first and second upper and lower movable members that are rotatably supported by the upper and lower movable members a rotating shaft, a disk-shaped pressing rotating member fixed to a lower end of the first rotating shaft via a collar, and a pin protruding horizontally from the upper end portion of the first rotating shaft on the same diameter horizontally to rotate The measuring unit of the angle measuring device is provided so as to be rotatably inserted through the second rotating shaft supported on the bracket and the rotating shaft supporting member connected to the lower end of the second rotating shaft (see, for example, Patent Document 1) .

Previous technical literature Patent literature

Patent Document 1: Japanese Laid-Open Patent Publication No. 2007-014556

However, according to the sill roughing device described in Patent Document 1, since the pressing member is rotated while pressing the sill as a whole on the pressing surface of the pressing rotating member, the upper surface of the platform on which the sill is placed is not flat. Feelings In the shape, there is a possibility that the pressing rotating member does not rotate normally. To solve this, the upper surface of the platform needs to be processed into a high-precision plane, resulting in an increase in manufacturing cost.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a sill roughing device capable of reducing the manufacturing cost of a device without performing high-precision planar processing for a platform.

The above object of the present invention is achieved by the following constitution.

(1) A sill roughing device comprising: a sewing portion for performing a sill having a rectangular cloth sheet, and a sewing portion for feeding the sill, and a door for rotating the sill by the sewing portion襟Rotary device; and the sill roughing device is a straight and arc-shaped hem for the sill; the sill rotating device includes: a turning control unit for controlling the rotation of the sill, and a lifting device for lifting the turning control unit The turning control unit includes a first protrusion that presses the surface of the sill and becomes a center of rotation of the sill, and a second surface that is provided so as to rotate the base end portion around the first protrusion and press the sill The protrusion and the sensor that detects the rotation angle of the second protrusion become a specific angle.

(2) The sill roughing device according to (1), further comprising a rotation driving device that returns the second projection to an initial position before the rotation.

(3) The sill roughing device according to (1) or (2), wherein the second projection is provided on a link member that is rotatable about a rotatable shaft, and the first projection is disposed on an axis of the rotation shaft.

According to the sill roughing device of the present invention, the turning control unit has: a top a first protrusion that is a center of rotation of the sill, a second protrusion that is provided so as to rotate the base end portion around the first protrusion, and that presses the surface of the sill, and detects the second protrusion The angle of rotation becomes a sensor of a certain angle, so that the pressing member does not face the threshold as in the prior device. Thereby, since it is not necessary to apply high-precision plane processing to the stage, the manufacturing cost of a device can be reduced.

Hereinafter, an embodiment of the sill roughing device of the present invention will be described in detail based on the drawings.

As shown in Fig. 1 and Fig. 2, the sill roughing device 10 of the present embodiment includes a table 11 in which a sill F is set for the hem sill F, a hem of the sill F, and a sewing of the sill F The portion 20, the frame 12 that is erected on the platform 11, and the sill rotating device 30 that is provided at the upper end portion of the frame 12 to rotate the sill F fed by the sewing portion 20.

Further, a threshold guide 13 for guiding a threshold F supplied from a threshold supply device (not shown) to a specific position below the rocker rotating device 30 is erected on the upper surface of the stage 11.

As shown in Fig. 1, the sewing unit 20 includes a slit sill F, a sewing needle 21, a sewing machine foot 22 that constitutes a mechanism for feeding the sill F, and an edge portion of the sill F that is not shown. Broken blade.

The rocker rotating device 30 includes a turning control unit 50 that controls the rotation of the threshold F and a lifting device 40 that moves the turning control unit 50 up and down.

The lifting device 40 includes a guide portion 41 that is attached to the front surface of the upper end portion of the frame 12 and extends in the vertical direction, and a top panel that is attached to the upper end portion of the guide portion 41. 42; a first cylinder device 43 that is attached to the top panel 42 and has a rod 43a that is vertically moved forward and backward; and a guide portion 41 that is slidably movable in the vertical direction, and is attached to the lower end portion of the rod 43a of the first cylinder device 43 and is attached thereto. There is a sliding portion 44 of the turning control unit 50. Further, in the lifting device 40, the sliding portion 44 is slid and moved by the rod 43a of the first cylinder device 43 to move in and out, and the turning control unit 50 is moved up and down.

As shown in FIGS. 1 to 3, the turning control unit 50 includes first to third holders that are attached to the front surface of the sliding portion 44 of the lifting device 40 at a predetermined interval in the vertical direction and that are parallel to the stage 11. Frames 51 to 53; arm members 54 rotatably supported between the first and second brackets 51 and 52; and link members 55 rotatably supported between the second and third brackets 52 and 53; A rotary drive device 60 that rotates the arm member 54 on the first bracket 51; and a proximity switch that is attached to the end of the first bracket 51 via the support member 56 and detects that the rotation angle of the link member 55 is a specific angle (Sensor) 70.

The arm member 54 and the link member 55 are rotatably provided around a rotation axis, and the rotation shaft is constituted by a first rotation shaft 64 and a second rotation shaft 82 which are disposed on a coaxial line to be described later.

As shown in FIGS. 3 and 4, the rotation driving device 60 includes a rectangular parallelepiped casing 61 fixed to the first bracket 51, and a rod 62a that is provided in the casing 61 and that moves forward and backward along the longitudinal direction of the first bracket 51. a second cylinder device 62; a rack 63 formed on a side surface of the rod 62a; a first rotating shaft 64 rotatably supported by the first bracket 51 in the vertical direction; and a first rotating shaft 64 The upper end portion is a pinion gear 65 that 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 rotating shaft 64. And, in the rotary drive In the case of the second cylinder device 62, the air is introduced into the second cylinder device 62, and the lever 62a is biased by the force of the lever 62a (close to the direction of the guide portion 41), and the lever 62a is actuated to rotate the pinion gear 65 and the arm member 54. Further, by extracting air from the second cylinder device 62, the rod 62a loses its own retreating force, and the rod 62a moves in and out (in a direction away from the guide portion 41) in accordance with the rotation of the pinion gear 65 and the arm member 54.

Further, as shown in FIG. 3, the second rotating shaft 82 disposed in the vertical direction is rotatably supported by the rolling bearings 81a and 81b on the second and third brackets 52 and 53, and the second rotating shaft 82 is disposed on the second rotating shaft 82. The base portion of the link member 55 is fixed to the intermediate portion. Thereby, the link member 55 can rotate around the 2nd rotation shaft 82. Further, the second rotating shaft 82 is disposed on a coaxial line with the first rotating shaft 64.

Further, at the lower end portion of the second rotating shaft 82, the disk-shaped rocker pressing body 83 is integrally formed with the second rotating shaft 82 as the axial center, and a pressing door is formed at the center of the lower surface of the rocker pressing body 83. The surface of the crucible F becomes the first projection 84 of the center of rotation of the threshold F. Therefore, the first projection 84 is disposed coaxially with the first rotating shaft 64 and the second rotating shaft 82, and the link member 55 is rotated about the first projection 84.

Further, a fitting convex portion 85 having a circular shape in plan view is formed at the center of the upper surface of the sill pressing body 83, and the fitting portion 85 is rotatably fitted to the circular shape in a plan view formed on the lower surface of the third bracket 53. The inside of the recessed portion 57. Thereby, since the rotation of the rocker pressing body 83 is guided by the fitting recess 57, the rocker pressing body 83 can smoothly rotate around the second rotating shaft 82.

Further, a step portion 86 is formed on the outer peripheral surface of the sill pressing body 83 over the entire circumference, and the outer peripheral surface of the sill pressing body 83 is rotatable from above at the step portion 86 and is rotatable An annular sill pressing portion 87 that presses the sill F from above is fitted to the upper and lower sides.

Further, as shown in FIGS. 1 and 3, an interlocking pin 88 is provided upright in the intermediate portion of the link member 55, and an upper portion of the interlocking pin 88 is configured to contact the left side surface of the arm member 54. Therefore, the link member 55 is rotated by pressing the interlocking pin 88 on the left side surface of the arm member 54 that is rotated by the rotation driving device 60. Further, in the present embodiment, the rotation driving device 60 returns the link member 55 rotated by the feeding force of the sewing unit 20 to the initial position before the rotation, so that the arm member 54 is clockwise in Fig. 12 . Direction rotation. The "initial position" refers to a position at which the link member 55 is orthogonal to the longitudinal direction of the second and third brackets 52, 53.

Further, as shown in FIGS. 1 to 3, a pressing lever 91 disposed in the vertical direction is attached to the distal end portion of the link member 55, and a second surface of the pressing sill F is formed on the distal end surface of the pressing lever 91. Protrusion 92. Thereby, the feeding force of the sewing unit 20 is transmitted to the link member 55 via the rocker F and the pressing lever 91, and the link member 55 is rotated together with the rocker F in the counterclockwise direction in FIG. Further, the second projections 92 are formed at the same height as the first projections 84.

Further, a sill pressing piece 93 including an L-shaped plate-shaped member is attached to the left side surface 55L of the front end portion of the link member 55, and the lower surface of the sill pressing piece 93 is formed with the second projection 92 adjacent to the lower side. The notch portion 93a.

Further, as shown in FIG. 1 and FIG. 2, the proximity switch 70 is attached to the support member 56 with the detection portion facing downward, and is disposed in a state where the rotation is reversed by 90° in the counterclockwise direction from the initial position. The position of the right side surface 55R of the link member 55 (refer to FIG. 7). Moreover, the proximity switch 70 is provided with a detection signal The cable 71 is transmitted to a control device (not shown).

In the sill roughing device 10 thus constructed, in the case where the link member 55 is rotated in the counterclockwise direction by the feeding force of the sewing portion 20 (refer to FIG. 11), the left side surface of the arm member 54 is subjected to the interlocking pin. The sub-88 is pressed to rotate the arm member 54 together with the link member 55. Further, in order to return the link member 55 to the initial position, the arm member 54 is rotated in the clockwise direction by the rotation driving device 60 (refer to FIG. 12), and the pin 88 is attached to the left side of the arm member 54. Pressing causes the link member 55 to rotate together with the arm member 54.

Further, as shown in FIG. 11, the link member 55 is rotated about the first projection 84, and the second projection 92 is rotated about the first projection 84. As shown in FIG. The second projection 92 is rotated in the reverse direction around the first projection 84, and the second projection 92 is returned to the initial position before the rotation.

Further, the left side surface of the arm member 54 and the link member 55 refers to the side surface in the clockwise direction of the arm member 54 and the link member 55, and the right side surface refers to the counterclockwise direction toward the arm member 54 and the link member 55. The side.

Next, the operation of the sill roughing device 10 of the present embodiment will be described with reference to Figs. 5 to 13 .

First, as shown in FIGS. 5 and 9, the threshold F supplied from a threshold supply device (not shown) is guided by the threshold guide 13 and set at a specific position below the rocker rotating device 30. Next, as shown in FIG. 10, after the sill guide 13 is retracted, the sill F is moved in the straight direction by the feeding force of the sewing portion 20, and the short side of one of the sills F is straight by the sewing portion 20. Sewed edges. At this time, the turning control unit 50 is disposed at the rising position. In addition, the symbol S in the figure is a seam portion.

Next, when the short side of one of the sills F is sewn to a specific length, as shown in FIG. 6, the turning control unit 50 is lowered by the lifting device 40, so that the surface of the sill F is the first projection 84 and the 2 protrusion 92 is pressed. As a result, as shown in FIG. 11, the threshold F and the link member 55 are rotated counterclockwise around the first projection 84 by the feeding force of the sewing unit 20, and the sewing unit 20 is self-sliding from the threshold F. The short side to the other side of the other side is subjected to an arc-shaped slit. Further, at this time, since the sill F is pressed by the sill pressing portion 87 and the sill pressing piece 93, it can be stably rotated without being displaced.

Next, as shown in FIG. 7, when the sill F and the link member 5590 are rotated, and the right side surface 55R of the link member 55 is detected by the proximity switch 70, as shown in FIG. 8, the turning control unit 50 is borrowed. The lifting device 40 is raised to separate the first projections 84 and the second projections 92 from the surface of the sill F. Thereby, the rotation of the sill F and the link member 55 is stopped, and as shown in FIG. 12, the sill F is moved in the straight direction by the feeding force of the sewing portion 20, and is linearly formed by the sewing portion 20. Sew the long side of one side of the threshold F. Further, at this time, in the turning control unit 50 that has been raised, the rotating link member 55 is rotated by 90 degrees clockwise by the arm member 54, and returns to the initial position.

Next, as shown in FIG. 13, the threshold F which is subjected to the seam is carried out to the outside of the apparatus 10 by a carry-out device (not shown), and thereafter, the next threshold F is guided by the threshold guide 13, and is set. At a specific position below the sill rotating device 30. Thereafter, by repeating the above operation, the sill F supplied to the apparatus 10 is sewn.

As described above, according to the sill roughing device 10 of the present embodiment, the turning control unit 50 is provided with a surface that presses the threshold F to be the rotation of the threshold F. a first protrusion 84 at the center; a link member 55 provided to rotate around the first protrusion 84 at the base end portion; and a second protrusion on the front surface of the link member 55 to press the surface of the sill F 92; and detecting the sensor 70 that the rotation angle of the link member 55 that rotates together with the sill F by the second protrusion 92 becomes a specific angle; therefore, the pressing member does not face the threshold F as in the prior device. The situation. Thereby, since it is not necessary to apply high-precision plane processing to the stage 11, the manufacturing cost of the apparatus 10 can be reduced.

Further, as a modification of the rotation driving device 60, as shown in FIG. 14, the arm member 54 may be directly rotated by the drive shaft 101 of the servo motor 100. In this case, the arm member 54 presses the interlocking pin 88 that is erected on the link member 55, and the link member 55 is rotated to return to the above initial position. Thereafter, the drive shaft 101 is rotated in the opposite direction, and the arm member 54 is rotated in the opposite direction to return to the initial position of the arm member 54 shown by the two-dot chain line.

The present invention is not limited to the embodiments described above, and may be modified as appropriate without departing from the scope of the invention.

For example, in the above-described embodiment, the first projection and the second projection have a sharp triangular shape at the tip end. However, the shape may be arbitrary as long as the threshold F can be pressed, and for example, a hemispherical projection may be used.

Further, in the above-described embodiment, the proximity switch 70 detects the right side surface 55R of the link member 55. However, the present invention is not limited thereto, and the pressing lever 91 attached to the link member 55 may be detected.

Further, in the above-described embodiment, the interlocking pin 88 is provided upright on the link member 55. However, the interlocking pin 88 is not limited thereto, and may be provided to the arm member 54 so as to protrude downward. In this case, the linkage pin 88 is in contact with the company. The right side surface 55R of the lever member 55 is disposed.

Further, the arm member 54 and the interlocking pin 88 may be removed, and the first rotating shaft 64 and the second rotating shaft 82 may be integrated as a rotating shaft, and the link member 55 may be attached to the rotating shaft. In this case, when the first projection 84 and the second projection 92 press the threshold F, the link member 55 is rotated in the counterclockwise direction together with the rotation of the sill F, and the lever 62a is retracted. Rotate in the clockwise direction together with the rotating shaft to return to the above initial position.

10‧‧‧ sill roughing device

11‧‧‧ platform

12‧‧‧Rack

13‧‧‧ threshold guide

20‧‧‧Sewing Department

21‧‧‧Sewing needle

22‧‧‧Sewing machine feet

30‧‧‧Throttle rotation device

40‧‧‧ lifting device

41‧‧‧ Guide

42‧‧‧ top panel

43‧‧‧1st cylinder device

43a‧‧‧ rod

44‧‧‧Sliding section

50‧‧‧turn control unit

51‧‧‧1st bracket

52‧‧‧2nd bracket

53‧‧‧3rd bracket

54‧‧‧arm components

55‧‧‧Connector components

55L‧‧‧left side

55R‧‧‧ right side

56‧‧‧Support components

57‧‧‧ fitting recess

60‧‧‧Rotary drive

61‧‧‧Shell

62‧‧‧2nd cylinder device

62a‧‧‧ pole

63‧‧‧ rack

64‧‧‧1st rotating shaft

65‧‧‧ pinion

70‧‧‧Proximity switch (sensor)

71‧‧‧ cable

81a, 81b‧‧‧ rolling bearings

82‧‧‧2nd rotating shaft (rotating shaft)

83‧‧‧ threshold pressing body

84‧‧‧1st protrusion

86‧‧‧

87‧‧‧ threshold press

88‧‧‧ linkage

91‧‧‧ rod

92‧‧‧2nd protrusion

93‧‧‧ threshold press

93a‧‧‧Gap section

100‧‧‧Servo motor

101‧‧‧ drive shaft

F‧‧‧ threshold

S‧‧‧Sewed part

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an embodiment of a sill squeegee apparatus of the present invention; Fig. 2 is a front elevational view of the sill squeezing apparatus shown in Fig. 1, and Fig. 3 is a sill sill shown in Fig. 2. The enlarged cross-sectional view of the main part of the device; FIG. 4 is an enlarged view of the rack and pinion shown in FIG. 3 from above; FIG. 5 shows the sill of the state before the first and second protrusions are pressed against the threshold. An enlarged front view of the device; Fig. 6 is an enlarged front elevational view of the sill roughing device in which the turning display control unit is lowered, the first and second projections are pressed against the threshold; and Fig. 7 is a view showing the rotation of the sill and the link member Fig. 8 is an enlarged front elevational view showing a state in which the turning control unit is raised, and the first and second projections are separated from the threshold, and an enlarged front view of the threshold squeezing device; FIG. 9 is a display of the threshold setting. A plan view showing a state of a specific position below the sill rotating device; FIG. 10 is a view showing that the sill guide is retracted and the sewing portion is used to sew the door in a straight line. FIG. 11 is a plan view showing a state in which the short side of one side of the cymbal is in a state in which the turning control unit is lowered and the short side of one of the sills is applied by the sewing portion and the long side of the other side is subjected to an arc-shaped hem. Fig. 12 is a plan view showing a state in which the turning control unit is raised and the long side of one side of the door sill is linearly sewn by the sewing portion; Fig. 13 is a view showing that the sill is carried out by the sill and supplied. A plan view of a state of a door; and FIG. 14 is a schematic perspective view showing a modification of the rotary drive.

10‧‧‧ sill roughing device

11‧‧‧ platform

12‧‧‧Rack

13‧‧‧ threshold guide

20‧‧‧Sewing Department

21‧‧‧Sewing needle

22‧‧‧Sewing machine feet

30‧‧‧Throttle rotation device

40‧‧‧ lifting device

41‧‧‧ Guide

42‧‧‧ top panel

43‧‧‧1st cylinder device

43a‧‧‧ rod

44‧‧‧Sliding section

50‧‧‧turn control unit

51‧‧‧1st bracket

52‧‧‧2nd bracket

53‧‧‧3rd bracket

54‧‧‧arm components

55‧‧‧Connector components

55L‧‧‧left side

55R‧‧‧ right side

56‧‧‧Support components

60‧‧‧Rotary drive

61‧‧‧Shell

70‧‧‧Proximity switch (sensor)

71‧‧‧ cable

87‧‧‧ threshold press

88‧‧‧ linkage

91‧‧‧ rod

93‧‧‧ threshold press

93a‧‧‧Gap section

Claims (5)

A sill roughing device, characterized in that the sill roughing device (10) is provided with a hem that carries a sill (F) including a rectangular piece of cloth, and feeds the sewing portion of the sill (20) And a sill rotating device (30) for rotating the sill that is fed by the sewing unit; and a linear and arc-shaped hem for the sill; the sill rotating device includes: controlling the door a turning rotation control unit (50); and a lifting device (40) for raising and lowering the turning control unit; the turning control unit includes: a first protrusion that presses a surface of the threshold to become a rotation center of the threshold (84) a second protrusion (92) that is provided to rotate the base end portion around the first protrusion and that presses the surface of the threshold; and detects that the rotation angle of the second protrusion becomes a specific angle The sensor (70); wherein the second protrusion (92) is disposed on a link member (55) that is rotatable about a rotatable shaft (82), and the first protrusion is disposed on an axis of the rotating shaft (84). The sill roughing device of claim 1, further comprising: a rotation driving device (60) for returning the second projection (92) to an initial position before rotation. The sill roughing device according to claim 1 or 2, wherein the first projection and the second projection have a sharp tip end. The sill squeezing device according to claim 1 or 2, wherein a disc-shaped sill pressing body is integrally formed at a lower end of the rotating shaft, and the first projection is formed on a lower surface of the sill pressing body. An annular sill pressing portion that presses the sill is fitted to the outer peripheral surface of the sill pressing body. A sill squeezing device according to claim 1 or 2, wherein a sill pressing piece for pressing the aforementioned threshold is attached to the link member.