JP3988124B2 - Belt loop piece supply device for sewing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a belt loop piece obtained by cutting a continuous belt-shaped belt loop material with a cutter device and sandwiching the belt loop piece between a pair of fork-shaped gripping portions and supplying the belt loop piece to a sewing device.
[0002]
[Prior art]
  For example, as described in a belt loop material supply device for a sewing device disclosed in Japanese Patent Application Laid-Open No. 11-42382, a belt loop piece is sewn to a body material so as to form a belt loop for passing the belt through the material material such as trousers. A belt loop piece supply device, a cutter device, and a belt loop material supply device are provided adjacent to the two-needle sewing machine, and the belt loop material supply device allows a continuous belt belt belt material to be fed to the cutter device by a predetermined length. The belt loop material supplied and cut by the cutter device is cut into a linear shape or a V-shape (triangular shape), and the cut belt loop piece of a predetermined length is cut into a two-needle sewing machine by the belt loop piece supply device. Therefore, both ends of the belt loop piece are sewn to the body cloth by a two-needle sewing machine.
[0003]
  The belt loop piece supply device includes a loop piece supply mechanism that supplies a belt loop piece to a sewing machine, a moving mechanism that moves the loop piece supply mechanism between a standby position and a sewing position, and a loop piece supply mechanism. It consists of a swing mechanism that swings up and down. The loop piece supply mechanism has a pair of left and right grips integrally formed with a pair of parallel forks, and these grips can be rotated about 270 °. When delivering the belt loop piece, the loop piece supply mechanism is first retracted to a predetermined retracted position and then advanced to the delivery position of the cutter mechanism.
[0004]
  Next, in the state where the left and right both ends of the cut belt loop piece are gripped by a pair of gripping portions, both the gripping portions are turned outward to fold back both ends of the belt loop piece. Then, the loop piece supply mechanism is further advanced to the sewing position, and both ends of the belt loop piece are pressed by the sewing machine and then retracted to the retracted position. Here, each grip part can change the separation distance from the other grip part so that it can respond even if the width dimension of the belt loop piece changes. Further, the forks of each gripping portion are straight, and various belt loop pieces are sandwiched by a pair of forks.
[0005]
[Problems to be solved by the invention]
  In the conventional loop piece supply mechanism, as described above, the belt loop piece is simply held between a pair of gripping portions, so that both ends of the cut belt loop piece are held in the state of being held at the delivery position. When it is difficult to bend due to the material and thickness of the belt loop at the time of folding, the belt loop piece is displaced from the predetermined gripping position of the gripping part to the tip side, and the fork direction is orthogonal to the belt loop piece. The folded portion is folded so that the folded portion protrudes outward from the belt loop piece. That is, so-called dog ears are generated.
[0006]
  In addition, even if the folding is good without the occurrence of dog ears, if the belt loop piece in the bent state is shifted to the tip side of the gripping part due to vibration during the movement from the delivery position to the sewing position, There may be a case where the supply position of the belt loop piece is shifted with respect to the stitch position. In either case, there are problems such as poor appearance of the belt loop piece sewn and a decrease in product value.
  An object of the present invention is to fold back both ends of the belt loop piece neatly without generating a dog-ear so that it can be fastened and sewn.
[0007]
[Means for Solving the Problems]
  The belt loop piece supply device for a sewing apparatus according to claim 1 is a belt loop piece obtained by cutting a continuous belt belt material with a cutter device.Near both ends ofWith a pair of fork-shaped gripsWith the belt loop piece held in its folded state, the width direction of the belt loop piece is approximately horizontal.In a belt loop piece supply device for a sewing device supplied to a sewing device, a pair of gripping portionsRespectivelyCorrespondenceLikeA pair of movement prevention members provided separately from the gripping portion at positions near the pair of gripping portions,The pair ofThe belt loop piece gripped by the gripping partThe pair of belt loop pieces in the width directionPrevent from moving to the tip of the gripA pair ofA movement blocking member is provided,The pair ofThe movement blocking member approaches the belt loop piece gripped by the gripping portion from above and remains in contact with the upper surface of the belt loop piece.One end side of the grip portion in the width directionIt has a locking part that locks the side surface, and a pair of gripping parts supply belt loop pieces to the sewing deviceWhen moving to the sewing position as much as possibleIn addition, the blocking state of the belt loop piece by the movement blocking member is released.It is characterized byIs.
[0008]
  A pair ofThe gripping part receives the belt loop piece cut by the cutter device., Grip the vicinity of both ends of the belt loop pieceIn this case, since the belt loop piece is prevented from moving toward the tip of the gripping portion by the movement preventing member, the belt loop piece is not displaced with respect to the gripping portion of the belt loop piece, and the direction of the gripping portion is the belt loop piece. Therefore, a so-called dog-ear in which the folded portion protrudes outside the belt loop piece does not occur. Therefore, the appearance of the sewn belt loop piece can be improved.
[0009]
  Further, a pair of movement blocking members corresponding to the pair of gripping portions are provided, and each movement blocking member is provided separately from the gripping portion at a position near the corresponding gripping portion. Near the grip1 TwinEach by the movement prevention member1 Of the gripping part of the pairSince the movement to the tip side is blocked, the movement blocking effect can be enhanced. Moreover, it is only necessary to provide a separate movement prevention member without performing any processing on the grip portion.
[0010]
  Further, the pair of gripping portions supply belt loop pieces to the sewing device.When moving to the sewing position as much as possible,Since the blocking state of the belt loop piece by the movement blocking member is released, remove the belt loop piece.A pair ofSewing while holding the grip partAfter moving to a position, a pairThe grip isFrom the sewing positionWhen retreating, the movement blocking state by the movement blocking member toward the distal end side of the gripping portion is released, so the belt loop piece isSewingThe position can be reliably and stably supplied.
[0011]
  Further, the movement preventing member approaches the belt loop piece gripped by the gripping portion from above and remains in contact with the upper surface of the belt loop piece.One end side of the grip portion in the width directionSince it has a locking portion that locks the side surface, the movement blocking member is in contact with the upper surface of the belt loop piece when the belt loop piece held by the holding portion is locked by the locking portion. The belt loop pieceNear both endsButA pair ofEven when it is folded back by the gripping part or while it is moving to the sewing position, the belt loop pieceOne end of the gripBy locking the side, the belt loop piece can beRazLesRuCan be reliably prevented, and the occurrence of dog-ear can be prevented.
[0012]
[0013]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, embodiments of the present invention will be described with reference to the drawings.
  In this embodiment, a belt loop piece obtained by cutting a continuous belt-like belt loop material for sewing with a cutter device so as to create a belt loop piece for sewing a belt loop for passing a belt on a body material such as trousers. This is a case where the present invention is applied to a belt loop piece supplying device for sewing that supplies a needle to a two-needle sewing machine.
[0014]
  As shown in FIG. 1, on the base table 1, a two-needle sewing machine 2 that sews a belt loop piece 8 a to the body material, and a belt loop piece adjacent to the two-needle sewing machine 2.ServingA feeding device 3, a belt loop material feeding device 4, a cutter device 5 and the like are provided. That is, the belt loop material supply device 4 feeds a continuous belt belt material 8 by a predetermined length and supplies it to the cutter device 5, and the belt belt material 8 supplied by the cutter device 5 is cut at every predetermined length. Then, the cut belt loop piece 8a is supplied from the side to the sewing position on the body cloth of the two-needle sewing machine 2 by the belt loop piece supplying device 3, and both ends of the belt loop piece 8a by the two-needle sewing machine 2 The barrack stitching is performed.
[0015]
  The belt loop piece supply device 3 will be described with reference to FIGS.
  A mounting base 11 having a substantially U-shape in side view is fixed to the vicinity of the right end on the base table 1, and a pair of vertical walls 11 a and 11 b in the front and rear of the mounting base 11 is connected to the front and rear of the pivot shaft 12 in the front-rear direction. Both ends are fixed to each other. A right end portion of a swinging member 13 extending in the left-right direction is fixed to the front end portion of the pivot shaft 12, and an upper and lower 1 extending in the left-right direction between a pair of left and right support portions 13 a, 13 b of the swinging member 13. The left and right ends of the pair of guide shafts 14 are fixed. A loop piece supply mechanism 15 is supported by the pair of guide shafts 14.
[0016]
  That is, the rear end portion of the first support block 16A is slidably supported by the pair of guide shafts 14 in the left-right direction, and the first inner block 16B is disposed in the first support block 16A.CIs provided so as to be rotatable around the center. A first rotary cylinder 17 is disposed on the first inner block 16B in the left direction, and a rod 17a of the first rotary cylinder 17 extends leftward. A tension spring 16D is hung between the first support block 16A and the first inner block 16B, and the first inner block 16B and the first rotary cylinder 17 are urged upward.
[0017]
  A rear end portion of the support plate 18 with a scale long in the front-rear direction is fixed to the upper surface of the first support block 16A with screws. As shown in FIG. 4, the right end portion of the support plate 20 that supports a first movement blocking member 22 described later is screwed to the left end portion of the first support block 16A. A rotating shaft 19 that rotates together with the rod 17 a is fixed to the rod 17 a of the first rotary cylinder 17, and a fork-shaped first gripping portion 21 is fixed to the distal end portion (left end portion) of the rotating shaft 19. .
[0018]
  As shown in FIG. 5, a pair of upper and lower forks 21a and 21b having a predetermined gap are integrally formed in the first gripping portion 21, and a belt loop piece 8a supplied between the two forks 21a and 21b. Can be held in a sandwiched manner. At the left end portion of the support plate 20, a horizontal portion of the first movement prevention member 22 formed in a substantially inverted L shape (key shape) when viewed from the side is screwed. The vertical portion of the first movement blocking member 22 is provided in the vicinity of the front side of the first gripping portion 21, and a locking portion 22 a that protrudes downward is formed at the tip portion.
[0019]
  Therefore, when the belt loop piece 8a is sandwiched between the forks 21a and 21b, the belt loop piece 8a passes through the locking portion 22a while slightly lifting the locking portion 22a. At this time, since the first movement blocking member 22 is in contact with the upper surface of the belt loop piece 8a and the left side surface of the belt loop piece 8a is locked by the locking portion 22a, the belt loop piece 8a is locked to the first gripping portion 21. Is prevented from moving to the tip side (left side). A long hole 18a in the front-rear direction is formed in the support plate 18 with the scale, and the second support block 25A is supported by the pair of front and rear screws 26 through the long hole 18a.
[0020]
  A second internal block 25B is provided in the second support block 25A so as to be rotatable about a shaft 25c. A second rotary cylinder 27 is disposed on the second inner block 25B in the left direction, and a rod 27a of the second rotary cylinder 27 extends leftward. A tension spring 25D is hung between the second support block 25A and the second inner block 25B, and the second inner block 25B and the second rotary cylinder 27 are urged upward. A right end portion of a support plate 29 that supports a second movement blocking member 31 described later is screwed to the left end portion of the second support block 25A.
[0021]
  A rotating shaft 28 that rotates together with the rod 27 a is fixed to the rod 27 a of the second rotary cylinder 27, and a fork-shaped second grip 30 is fixed to the distal end portion (left end portion) of the rotating shaft 28. . As shown in FIG. 4, a pair of upper and lower forks 30a and 30b having a predetermined gap are integrally formed on the second grip 30, and a belt loop piece supplied between the forks 30a and 30b. 8a can be gripped in a sandwiched manner. At the left end portion of the support plate 29, a horizontal portion of the second movement blocking member 31 formed in a substantially inverted L shape (key shape) in side view is screwed. The vertical portion of the second movement blocking member 31 is provided in the vicinity of the rear side of the second gripping portion 30, and a locking portion 31 a that protrudes downward is formed at the tip portion.
[0022]
  In this case, the second movement blocking member 31 acts in the same manner as the locking portion 22a of the first movement blocking member 22 by the locking portion 31a while being in contact with the upper surface of the belt loop piece 8a. In order to lock the left side surface of the belt loop piece 8 a sandwiched by 30, the belt loop piece 8 a is prevented from moving to the tip side (left side) of the grip portion 30. In this state, the first and second rotary cylinders 17 and 27 are simultaneously rotated by about 270 °, and both end portions of the belt loop piece 8a are folded back.
[0023]
  By the way, the distance between the second support block 25A and the first support block 16A can be arbitrarily set according to the loop piece length of the belt loop piece 8a simply by loosening the pair of screws 26. Therefore, the separation distance of the second support block 25A from the first support block 16A, that is, the separation distance of the second grip 30 from the first grip 21 is electrically detected at the right end of the loop piece supply mechanism 15. A potentiometer 35, which is a displacement detector, is provided horizontally.
[0024]
  The potentiometer 35 is a general one. Briefly, as shown in FIG. 6, one end side of a resistor 36 having a predetermined length is grounded, and a reference voltage + V is applied to the other end side. Yes. A contact 37 that can slide back and forth while always in contact with the resistor 36 is provided, and this contact 37 is connected to the second support block 25A. Therefore, since a voltage corresponding to the moving position of the contactor 37 is output from the contactor 37, the moving position of the second support block 25 </ b> A, that is, the both gripping portions 21 and 30, based on the output voltage v. The separation distance can be easily obtained by calculation.
[0025]
  Next, a moving mechanism 40 that moves the loop piece supply mechanism 15 to the left and right via the swing member 13 will be described with reference to FIGS.
  A guide member 41 having a substantially gate-shaped cross section in which a rectangular cutout 41a in the left-right direction is formed is fixed to a horizontal support wall portion 13a projecting rearward of the swing member 13, and the guide member 41 is bent. The first moving cylinder 43 is fixed via a damper holding plate 42 made of the plate material. Further, a second moving cylinder 44 is disposed in parallel with the first moving cylinder 43, and the second moving cylinder 44 is fixed to a connecting plate 45 fixed to the tip of the rod 43 a of the first moving cylinder 43.
[0026]
  In this case, the connecting plate 45 is formed such that a guided portion 45a that fits into the rectangular cutout 41a extends rightward. The tip of the rod 44 a of the second moving cylinder 44 is connected to the first support block 16 </ b> A via the joint member 46. Therefore, when the first and second moving cylinders 43 and 44 are in the retracted state, as shown in FIGS. 1 and 7, the tips of the gripping portions 21 and 30 are located at the retracted position PB. The damper holding plate 42 is provided with a damper 47 for reducing the impact when the rod 43a of the first moving cylinder 43 is driven to advance.
[0027]
  Next, a swing mechanism 50 that swings the loop piece supply mechanism 15 up and down via the swing member 13 will be described with reference to FIGS.
  The right end portion of the rotation lever 51 is fixed to the pivot shaft 12, and the L-shaped pivot plate 52 is fixed on the base table 1. The first swing cylinder 53 and the second swing cylinder 54 are fixed in opposite directions (back to back), the rod 53a of the first swing cylinder 53 is connected to the pivot plate 52, and the second swing cylinder 54 is connected. A rod 54 a of the moving cylinder 54 is connected to the left end portion of the rotation lever 51.
[0028]
  Here, the loop piece supply mechanism 15 has two stages, that is, when only the second swing cylinder 54 is driven forward, and when both the first and second swing cylinders 54 are driven forward simultaneously. It can swing to the swing position. Therefore, as shown in FIGS. 1 and 7, the first and second swing cylinders 53 and 54 are driven forward and the first and second moving cylinders 40 and 41 are moved at the tips of the gripping portions 21 and 30. When the retraction drive is performed, the retreat position PB is set.
[0029]
  When only the first moving cylinder 43 is driven to advance in this state, it moves to the delivery position PU, and in this state, the first swing cylinder 53 is retracted.AndWhen only the second moving cylinder 44 is driven to advance instead of the first moving cylinder 43, it moves to the standby position PT, the second swing cylinder 54 is also retracted, and the first moving cylinder 43 is driven to advance. In this case, it moves to the sewing position PH.
[0030]
  Next, the belt loop material supply device 4 that supplies the belt loop material 8 to the cutter device 5 will be described with reference to FIGS. However, the belt loop material supply device 4 is arranged in a slanted shape inclined to the right side as shown in FIG. 1, but is a view seen from obliquely below in each of the drawings after FIG.
[0031]
  On the base table 1, a feeding substrate 63 is fixed horizontally through a pair of front and rear frame plates 61, 62 that are erected on the substrate 60 in a front view and are substantially square-shaped, and are fed to the feeding substrate 63. A first guide member 64 for guiding the right end of the continuous belt-like belt loop member 8 in the front-rear direction is fixed in a standing direction, and a second guide member 65 is opposed to the first guide member 64 so as to face the first guide member 64. It is arranged parallel to the member 64 and slidable in the left-right direction.
[0032]
  Therefore, the belt loop material 8 fed out from the belt loop material supply pulley (not shown) is guided by the pair of guide members 64 and 65 and is disposed on the downstream side in the moving direction F of the feeding substrate 63. It is cut by the device 5. Therefore, a guide roller 66 that is in contact with the lower side of the belt loop material 8 to be fed is rotatably pivoted at the downstream end portion of the feeding substrate 63. Further, a lower end portion of a vertically-oriented cylindrical member 67 that supports a fixed-side pivot screw 77 of a parallelogram link mechanism 75 described later is fixed to the left end portion of the feeding substrate 63.
[0033]
  A moving block 68 is disposed between the pair of frame plates 61 and 62 so as to be movable in the left-right direction with respect to the substrate 60. The moving block 68 is fixed with a lower end portion of a cover member 69 made of a plate material and having an inverted U shape when viewed from the front. Then, as shown in FIGS. 8 to 10, the vertical portion of the L-shaped plate 70 that is substantially L-shaped in a side view is screwed to the middle step in the height direction of the cover member 69. A pair of front and rear support portions 70a and 70b protruding rightward are formed with elongated holes 70c that are long in the front-rear direction.
[0034]
  Next, a parallelogram link mechanism 75 in which four link plates 76 are connected in a parallelogram will be described with reference to FIGS.
  A parallelogram is formed by combining four link 76 plates of a predetermined length, and the left connecting portion is connected to the upper end portion of the above-described fixed-side cylindrical member 67 by a pivotal screw 77. Further, the front connecting portion is connected by a pivotal support screw 78, and the shaft portion of the pivotal support screw 78 is fitted in the elongated hole 70c of the support portion 70a so as to be movable back and forth. In addition, the rear connecting portion is connected by a pivotal support screw 79, and the shaft portion of the pivotal support screw 79 is fitted in the elongated hole 70c of the support portion 70b so as to be movable back and forth.
[0035]
  Here, a link drive plate 80 bent in a substantially U shape when viewed from the front is disposed on the feed substrate 63, and the lower sliding portion 80 a of the link drive plate 80 is formed on the feed substrate 63. A pair of front and rear guide plates 81, 82 fixed to each other can slide in the left-right direction. Further, the right connecting portion is connected by a pivot screw 83 and is connected to the upper end of the link drive plate 80 by the pivot screw 83. At the two front and rear positions of the second guide member 65, the right end portions of the guide pins 84 and 85 extending in the left-right direction are respectively fixed, and the left end portions of the guide pins 84 and 85 are in the upward posture of the rear end of the link drive plate 80. It is supported by the support portion 80b.
[0036]
  Dice-like spacer blocks 86 are fixed to the middle portions of the guide pins 84 and 85, respectively. A compression coil spring 87 is externally provided between the support portion 80 b of the link drive plate 80 and the spacer block 86. Therefore, the second guide member 65 is always elastically biased rightward by the pair of compression coil springs 87. By the way, the distal end portion of the adjusting screw 88 provided on the base table 1 side is screwed into the moving block 68. That is, when the adjusting screw 88 is rotated in the clockwise direction, the moving block 68 moves to the right.
[0037]
  In this case, a pair of front and rear pivot screws 78 and 79 engaged with the elongated hole 70c are simultaneously moved to the right with respect to the left connecting portion on the fixed side through the cover member 69 and the L-shaped plate 70. Therefore, the right connecting portion moves to the right through the parallelogram link mechanism 75 by a moving distance that is double the moving distance of the pair of front and rear pivot screws 78 and 79 moving to the right. As a result, since the second guide member 65 moves to the right together with the link drive plate 80, the separation distance of the second guide member 65 from the first guide member 64 can be adjusted to be small. That is, the cover member 69 to which the L-shaped plate 70 is attached may be moved by a distance corresponding to half W / 2 of the belt width W of the belt loop piece 8a.
[0038]
  On the contrary, when the adjustment screw 88 is rotated counterclockwise, the second guide member 65 is moved to the left via the link drive plate 80 due to the leftward movement of the cover member 69 and the L-shaped plate 70. The separation distance of the second guide member 65 with respect to the first guide member 64 can be greatly adjusted. Here, the cutter device 5 is disposed on the upper side of the cover member 69, and the cutter device 5 is also moved in the left-right direction in conjunction with the movement of the second guide member 65 in the left-right direction. . However, the movement amount of the cutter device 5 is about half of the movement amount of the second guide member 65.
[0039]
  As shown in FIGS. 8, 12, and 13, the moving block 68 is provided with a belt feed motor 90 formed of a stepping motor. A feed roller 92 having an outer peripheral portion formed in a gear shape is pivotally supported by a pivot shaft 93 so as to face the guide roller 66. The feed roller 92 is driven to rotate by a belt feed motor 90 via a timing belt 94 in cooperation with the guide roller 66, and the belt loop material 8 supplied from a loop material accommodating portion (not shown) is supplied to the cutter device 5. A predetermined length is supplied to the direction.
[0040]
  Next, the cutter device 5 will be described with reference to FIGS.
  A horizontal support plate 96 is disposed at the upper end of the cover member 69, a horizontal bearing 97 is disposed on the support plate 96, and an outer ring of the bearing 97 is fixed to the support plate 96. A fitting portion of a horizontal rotating plate 98 is fitted into the inner ring, and a cutting air cylinder 99 is attached downward at a position corresponding to the front end portion of the upper surface of the rotating plate 98.
[0041]
  At a position corresponding to the left end portion of the rotation plate 98, the rotation air cylinder 100 is disposed in the front-rear direction, and the rear end portion of the rotation air cylinder 100 is horizontally rotated to the rear end portion of the support plate 96. The piston rod 100a is pivotally supported so that the front end of the piston rod 100a is connected to the rotating plate 98. That is, when the rotation air cylinder 100 is driven to advance to the advance position (shown by a solid line), the rotation plate 98 rotates counterclockwise to the position indicated by the solid line in a plan view, and the rotation air cylinder 100 retracts. When the retraction drive is performed to the entry position (shown by a chain line), the rotation plate 98 is rotated clockwise in a plan view to the position indicated by the chain line.
[0042]
  By the way, an upper end portion of the blade support plate 102 in the vertical direction is attached to the connecting plate 101 that is integrally formed with the rotating plate 98 and extends downward, and immediately below the notch portion 102 a of the blade support plate 102. The fixed blade 103 is fixed. On the other hand, the upper end portion of the movable blade 104 is connected to the lower end portion of the piston rod 99a of the cutting air cylinder 99 by screws 105, and the movable blade 104 is fixed to the left and right end portions of the blade support plate 102 in the vertical direction. It is supported by a pair of left and right guide members 106 and 107 so as to be movable in the vertical direction.
[0043]
  Here, the blade support plate 102 is formed with a vertically long slit 102 b that allows the screw 105 to move up and down. Further, a cutting portion composed of the movable blade 104 and the fixed blade 103 is provided close to the downstream side in the transfer direction F of the belt loop material 8. Accordingly, when the movable blade 104 moves downward while being guided by the pair of guide members 106 and 107 by the advance drive of the cutting air cylinder 99, the belt loop material 8 supplied to the notch portion 102a is The movable blade 104 and the fixed blade 103 are cut together.
[0044]
  Further, as described above, the blade support plate 102 provided with the movable blade 104 and the fixed blade 103 is about 65 at the same time as the rotation plate 98 is rotated by the advance drive and the retreat drive of the rotation air cylinder 100. The first cutting is performed at the position when the turning air cylinder 100 is driven to advance, and then the second cutting is performed at the position when the turning air cylinder 100 is driven to retract. The operation is executed, and the belt loop piece 8a is cut into a V shape (triangular shape).
[0045]
  Next, operations and effects of the belt loop material supply device 4 and the belt loop piece supply device 3 configured as described above will be described. Here, the belt loop material 8 is made of a cloth having a belt width of about 6 to 14 mm, and a loop material collection source for winding and accommodating the belt loop material 8 is not shown, but the belt loop material supply device 4 on the upstream side in the transfer direction F. First, the operator turns the adjustment screw 88 clockwise or counterclockwise so that the separation distance of the second guide member 65 with respect to the first guide member 64 becomes the width dimension of the belt loop material 8 fed out from the loop material accommodating portion. Rotate to.
[0046]
  When the adjustment screw 88 is rotated clockwise, the second guide member 65 moves to the right via the parallelogram link mechanism 75 as shown in FIGS. The separation distance of the second guide member 65 can be adjusted to be small. Conversely, when the adjustment screw 88 is rotated counterclockwise, the second guide member 65 moves to the left via the cover member 69 and the parallelogram link mechanism 75 as shown in FIGS. Thus, the separation distance of the second guide member 65 with respect to the first guide member 64 can be largely adjusted.
[0047]
  In this case, the cutter mechanism 5 attached integrally with the cover member 69 also moves to the left or right simultaneously with the movement of the second guide member 65 to the left or right. However, since the second guide member 65 moves to the left or right via the parallelogram link mechanism 75, the second guide member 65 moves by a movement distance that is twice the movement distance of the cutter mechanism 5. Next, the operator matches the distance between the gripping portions 21 and 30. In this case, the pair of screws 26 are loosened, the second support block 25A is moved back and forth, and the distance between the gripping portions 21 and 30 is appropriately adjusted according to the length of the belt loop piece 8a.
[0048]
  By the way, when the pair of gripping portions 21 and 30 are brought close to each other, as described above, the first rotary cylinder 17 and the second rotary cylinder 27 are arranged with their positions shifted in the length direction of the gripping portions 21 and 30. The first and second rotary cylinders 17 and 27 do not interfere with each other, and the first and second rotary cylinders 17 and 27 overlap with each other when viewed from the length direction of the gripping portions 21 and 30. Can be approached. Therefore, the distance between the gripping portions can be made as small as possible (for example, 25 to 26 mm), the belt loop piece 8a shorter than the conventional one can be sandwiched, and both end portions of the belt loop piece 8a can be reliably folded back.
[0049]
  When the belt loop sewing operation is started, the belt motor 8 is fed out by a predetermined length via the timing belt 94 and the feed roller 92 by driving the feed motor 90, and the drive of the feed motor 90 is stopped. As shown in FIG. 1, the two gripping portions 21 and 30 located at the retracted position PB are moved to the delivery position PU by the advance drive of the first moving cylinder 43.
[0050]
  In this case, since the guided portion 45a is guided by the rectangular cutout 41a, the second moving cylinder 44 can maintain a stable posture. At this time, the front end portion of the fed belt loop member 8 is sandwiched and gripped by the forks 21a, 21b, 30a, and 30b of the gripping portions 21 and 30, and at the same time, the movement preventing members 22 and 31 Since the locking portions 22a and 31a are slightly lifted and pass through the locking portions 22a and 31a, the left side surface of the belt loop material 8 is engaged with the locking portions 22a and 31a in the vicinity of the gripping portions 21 and 30, respectively. Stopped. Therefore, the movement blocking effect by the both movement blocking members 22 and 31 can be enhanced.
[0051]
  In this state, the cutter device 5 is driven. In this case, as described above, the turning air cylinder 100 is first driven to advance and the first cutting is executed by the lowering of the movable blade 104, and the blade support plate 102 is turned by about 65 °, so that the turning air cylinder 100 is rotated. The second cutting operation is executed by the movable blade 104 after the retraction is driven, and as shown in FIG. 18, the belt loop piece 8a has a pair of gripping portions at both ends cut into a V shape, that is, a triangular shape. 21 and 30, respectively. At this time, since the cutter mechanism 5 is moved in the same direction by half of the movement amount of the second guide member 56, even when the belt width W is different, the cutter mechanism 5 is V at the position of half the belt width W (W / 2). The apex of character cutting can be matched.
[0052]
  Then, as shown in FIG. 19, the first and second rotary cylinders 17 and 27 are simultaneously rotated by about 270 °, respectively, and both end portions of the belt loop piece 8a are folded back inside. In this case, since the belt loop piece 8a is locked at the left side by the locking portions 22a and 31a of the movement preventing members 22 and 31, respectively, and is prevented from moving toward the front end side of the gripping portions 21 and 30, the belt Since the position of the gripping portions 21 and 30 is surely orthogonal to the belt loop piece 8a without being displaced with respect to the gripping portions 21 and 30 of the loop piece 8a, the folded portion is outside the belt loop piece 8a. No so-called dog-earNaThe
[0053]
  Next, the first swing cylinder 53 is retracted and only the second moving cylinder 44 is driven to move forward instead of the first moving cylinder 43, and both the gripping portions 21, 30 move to the standby position PT. When the sewing preparation for the two-needle sewing machine 2 is completed, the second swing cylinder 54 is also driven to retract and the first moving cylinder 43 is driven to advance, so that both gripping portions 21 and 30 move to the sewing position PH. To do. At this time, the presser foot of the two-needle sewing machine 2 presses the forks 21a, 21b, 30a, 30b of the gripping portions 21, 30 from above, and the gripping portions 21, 30 are spring forces of the tension springs 16D, 25D. Descends against
[0054]
  As a result, the locking portions 22a and 31a of the both movement blocking members 22 and 31 are lifted upward with respect to the gripping portions 21 and 30, and the blocking state of the belt loop piece 8a is released. The belt loop piece 8a can be reliably and stably supplied to a predetermined sewing position. After that, the two-needle sewing machine 2 performs tacking stitching on both ends of the belt loop piece 8a. At the time of this tack-fastening, since the folded portion of the belt loop piece 8a does not protrude outward from the belt loop piece 8a, the appearance of the stitched belt loop piece 8a can be improved.
[0055]
  Next, a modified form of the embodiment will be described.
  1] You may comprise so that the 1st holding part 21A adhering to the front-end | tip part of the rod 17a may serve as a 1st movement prevention member. That is, as shown in FIG. 20, a locking portion 21c is formed on the upper portion of the lower fork 21b of the first gripping portion 21A. An abutting member 22A is attached to the left end portion of the support plate 20 so as to abut on the belt loop piece 8a locked by the locking portion 21c from the upper side. In this case as well, the same effect as in the above embodiment can be obtained.
[0056]
  In this case, when both the gripping portions 21 and 30 are moved to the sewing position PH, the locking portion 21c is rotated with respect to the first gripping portion 21A so that the blocking state by the locking portion 21c is released. May be. By doing so, stable supply to the sewing position of the belt loop piece 8a can be realized.
  2] Although not shown, the second grip 30 fixed to the tip of the rod 27a may be configured to also serve as the second movement blocking member. Here, you may make it form the same latching | locking part also in the lower part of the upper forks 21a and 30a.
[0057]
【The invention's effect】
  According to invention of Claim 1, the belt loop piece which cut | disconnected the continuous belt belt belt material with the cutter apparatusNear both ends ofWith a pair of fork-shaped gripsWith the belt loop piece held in the folded state and the width direction of the belt loop piece in the horizontal direction,In a belt loop material supply device for a sewing device to be supplied to a sewing device,A pair ofThe belt loop piece gripped by the gripping partThe pair of belt loop pieces in the width directionPrevent from moving to the tip of the gripA pair ofSince the movement blocking member is provided, it is possible to prevent the positional deviation of the belt loop piece with respect to the gripping portion, and the direction of the gripping portion is surely orthogonal to the belt loop piece. It is possible to prevent the so-called dog ears from sticking out and to improve the appearance of the belt loop piece sewn on the fabric.
[0058]
  Further, a pair of movement blocking members corresponding to the pair of gripping portions are provided, and each movement blocking member is provided separately from the gripping portion at a position near the corresponding gripping portion. Near the grip1 TwinEach by the movement prevention memberA pair of gripsSince the movement to the tip side is blocked, the movement blocking effect can be enhanced, and it is only necessary to provide a separate movement blocking member without processing the gripping part.
[0059]
  Further, the pair of gripping portions supply belt loop pieces to the sewing device.When moving to the sewing position as much as possible,Since the blocking state of the belt loop piece by the movement blocking member is released, remove the belt loop piece.A pair ofSewing while holding the grip partA pair after moving into positionThe grip isFrom the sewing positionWhen retreating, the movement blocking state by the movement blocking member toward the distal end side of the gripping portion is released, so the belt loop piece isSewingThe position can be reliably and stably supplied.
[0060]
  Further, the movement preventing member approaches the belt loop piece gripped by the gripping portion from above and remains in contact with the upper surface of the belt loop piece.One end side of the grip portion in the width directionSince it has a locking portion that locks the side surface, the movement blocking member is in contact with the upper surface of the belt loop piece when the belt loop piece held by the holding portion is locked by the locking portion. The belt loop pieceBothEnd isA pair ofEven when it is folded back by the gripping part or while it is moving to the sewing position, the belt loop pieceOne end of the gripBy locking the side, the belt loop piece can beRazLesRuCan be reliably prevented, and the occurrence of dog-ear can be prevented.
[0061]
[Brief description of the drawings]
FIG. 1 is a front view of a two-needle sewing machine, a belt loop piece supply device, a belt loop material supply device, and a cutter device according to an embodiment of the present invention.
FIG. 2 is a plan view of a loop piece supply device.
FIG. 3 is a side view of the loop piece supply device.
FIG. 4 is a front view of a loop piece supply unit.
FIG. 5 is an enlarged partial front view of a gripping portion.
FIG. 6 is an explanatory view illustrating the structure of a potentiometer.
FIG. 7 is an operation chart of a cylinder included in the loop piece supply device.
FIG. 8 shows a belt loop material supply device.rightIt is a side view.
[Fig. 9] Outline of waist part of belt loop material supply devicerightIt is a side view.
FIG. 10 is a schematic front view of a waist portion of the belt loop material supply device.
FIG. 11 is a waist schematic plan view of the belt loop material supply device.
FIG. 12 is a plan view of a belt loop material supply device in use of a wide belt loop material.
FIG. 13 is a front view of a belt loop material supply device using a wide belt loop material.
FIG. 14 is a plan view of the cutter device.
FIG. 15 is a front view of the cutter device.
FIG. 16 is a plan view of a belt loop material supply device in use of a narrow belt loop material.
FIG. 17 is a front view of a belt loop material supply device in use of a narrow belt loop material.
FIG. 18 is an enlarged plan view of both gripping portions.
FIG. 19 is a view corresponding to FIG. 18 when both ends are rotated.
FIG. 20 is a view corresponding to FIG. 5 according to a modified embodiment.
[Explanation of symbols]
2 Two-needle sewing machine
3 Belt loop piece feeder
5 Cutter device
8 Belt loop material
8a Belt loop piece
21 1st holding part
22 1st movement prevention member
22a Locking part
30 Second gripping part
31 Second movement blocking member
31a Locking part
21A gripping part
21c Locking part

Claims (1)

The belt loop elements and the width direction in a substantially horizontal direction in a state in which the vicinity of both ends portions by respective gripping folded by the gripping portion of the fork-shaped pair of cut belt loop elements a continuous strip of belt loop material by the cutter device In a belt loop piece supply device for a sewing device to be supplied to a sewing device,
Wherein as each corresponding to the grip portion of the pair, and the gripping portion in the vicinity of the grip portion of the pair a pair move blocking member which is provided separately, in the grip portion of the pair Providing a pair of movement blocking members for blocking the gripped belt loop pieces from moving toward the distal ends of the pair of gripping portions in the width direction of the belt loop pieces ;
The pair movement hampering member is of the grip portion of the front end side on the upper surface of the belt loop elements approaching from above a belt loop strip gripped by the grip portion in the width direction of the left belt loop elements of abutment one It has a locking part that locks the side,
The belt loop for a sewing device is released when the pair of gripping portions are moved to a sewing position so as to supply the belt loop piece to the sewing device. Single feeding device.

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