JP2003311060A - Belt loop material feeder for sewing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable guide member for guiding a belt loop material and a position adjustment according to a belt width of a cutter mechanism, and to move a movable guide member to a cutting blade of a cutter mechanism. To be able to move in conjunction with twice the amount. A moving block screwed with a manually operable adjusting screw is provided with a cutter mechanism having a cutting blade via a cover member and a support plate, and an L-shaped plate attached to the cover member is provided with a cutter mechanism. The movable second guide member 65 is guided movably in the width direction of the belt loop material 8 via a parallelogram link mechanism 75 connecting a plurality of link plates 76. By rotating the adjusting screw clockwise or counterclockwise, the position of the cutter mechanism is adjusted via the moving block 68 and the cover member 69, and the second guide member 65 is adjusted.
Is moved through the parallelogram link mechanism 75 by twice the amount of movement of the cutting blade whose position has been adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt loop material supply device for a sewing machine, and more particularly to interlock movement of a cutter mechanism and a guide member for guiding the belt loop material in the width direction. Regarding things.

[0002]

2. Description of the Related Art In order to form a belt loop that allows a belt to pass through a body cloth such as pants, a belt loop piece is provided adjacent to a two-needle sewing machine that sews the body cloth, and a belt loop piece supply device and a cutter device are provided. A belt loop material supplying device is provided, and the belt loop material supplying device supplies a continuous belt-shaped belt loop material to the cutter device by a predetermined length, and the supplied belt loop material is linear or V-shaped. It is cut into a shape (triangular shape).

The cut belt loop piece having a predetermined length is transferred to the belt loop piece supply device, and both ends of the belt loop piece are folded back to the sewing position of the two-needle sewing machine. Since it is supplied from one side, both ends of the belt loop piece are sewn to the body cloth by the two-needle sewing machine. In the belt loop material supply device, a pair of guide members for guiding both ends in the width direction of the belt loop material fed from the belt loop material supply reel and a predetermined amount of the belt loop material from the loop material supply reel are provided in the cutter device. It is provided with a feeding mechanism that feeds out toward one side.

When sewing the belt loop piece to the body cloth, the operator first fixes the movable guide member so that the distance between the pair of guide members becomes the width dimension of the belt loop member. The parallel guide member. When the belt loop piece is cut into a V shape by the cutter device, it is necessary to change the installation position of the cutter device according to the change in the width dimension of the belt loop piece. That is, the position of the acute-angled apex for cutting into a V-shape is a half position of the belt width of the belt loop material. Therefore, for example, when the belt width is "14 mm", the cutter device is moved to a half position of about 7 mm. And prepare for sewing the belt loop piece.

[0005]

In the conventional loop material supply device, as described above, the distance between the pair of guide members is set to the width dimension of the belt loop material in preparation for sewing the belt loop piece. In addition, the moving work for moving the movable guide member is performed, and the moving work is performed for moving the attachment position of the cutter device for V-shaped cutting to a position half the belt width of the belt loop material, which complicates the preparation work. And requires a lot of preparation time,
There is a problem such as.

An object of the present invention is to simplify the position adjustment of the movable guide member for guiding the belt loop material and the belt width of the cutter mechanism, and to move the movable guide member of the cutting blade of the cutter mechanism. To be able to move twice the amount, and so on.

[0007]

According to another aspect of the present invention, there is provided a belt loop material supplying device for a sewing device, comprising a cutter mechanism for cutting a belt loop material into a belt loop piece, and supplying a belt loop material from a loop material supply source. In a belt loop material supply device for a sewing device that is guided toward a cutter mechanism while being guided by a pair of guide members, cutter position adjusting means capable of adjusting the position of the cutting blade of the cutter mechanism in the width direction of the belt loop material, A guide mechanism for movably guiding the other movable guide member in the width direction of the belt loop member to one fixedly provided reference guide member of the pair of guide members, and a cutter mechanism. Mechanism for interlocking the cutting blade and the other guide member so as to move the other guide member by twice the movement amount of the cutting blade position-adjusted by the cutter position adjusting means. It is equipped with and.

When sewing the belt loop pieces, when the belt width of the belt loop material is different, and when the belt loop pieces are cut by the cutting blade of the cutter mechanism to form a V shape (triangle shape), the operator Manually operate the cutter position adjusting means to adjust the position of the cutting blade of the cutter mechanism in the width direction of the belt loop material.At this time, the cutting blade of the cutter mechanism and the other guide member are linked and linked by the interlocking mechanism. Therefore, the guide member on the other movable side moves in the width direction of the belt loop member by the guide mechanism by twice the movement amount of the position-adjusted cutting blade.

For example, in the case where the belt width is "14 mm", when the cutter device is moved by about 7 mm, which is half of the width, the other guide member is moved by 14 mm, which is twice the width, in the width direction of the belt loop material, Since the cutting blade can be moved to the optimum position according to the width, a clean V-shaped cutting can be realized. Therefore, it is only necessary to adjust the position by the cutter position adjusting means without adjusting the position of the cutter mechanism, and the preparation for sewing the belt loop piece can be simplified. Moreover, the movable side guide member can be moved by interlocking with the movement amount of the cutting blade of the cutter mechanism by twice.

Here, when the interlocking mechanism has a parallelogram link mechanism in which four link plates are connected in a parallelogram shape (claim 2 dependent on claim 1), a simple parallelogram is used. By using the link mechanism, the other guide member can be moved in the width direction of the belt loop member by twice the movement amount of the position-adjusted cutting blade.

Here, the parallelogram link mechanism has a first connecting portion, second and third connecting portions facing each other, and a fourth connecting portion facing the first connecting portion. The part is fixed to the stationary member, the second and third connecting parts are connected to the cutting blade of the cutter mechanism, and the fourth connecting part is connected to the other guide member (claim 3 dependent on claim 1). The cutting blade of the cutter mechanism moves by the amount of movement of the second and third connecting portions facing each other with respect to the first connecting portion on the fixed side, and the fourth connecting portion facing the first connecting portion moves. The other guide member can be interlocked with and moved by twice the moving amount of the cutting blade.

Here, the interlocking mechanism has a rack and pinion mechanism including one pinion and a pair of rack members meshing with both sides of the pinion, the pinion being connected to a cutting blade of a cutter mechanism, When the rack member of 1 is fixed to the stationary member and the other rack member is connected to the other guide member (Claim 4 depending on Claim 1 or 2, it meshes with one rack member on the fixed side). The cutting blade of the cutter mechanism moves by the amount of movement of the pinion, and the other guide member can be moved in conjunction with the amount of movement of the cutting blade by the movement of the other rack member that meshes with this pinion. .

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is provided with a cutter mechanism that cuts a belt loop material into a belt loop piece to sew a belt loop piece for passing a belt through body cloth such as pants, and a belt from a loop material supply source. This is a case where the present invention is applied to a belt loop material supply device for a sewing device that guides the loop material with a pair of guide members and feeds it toward the cutter mechanism.

As shown in FIG. 1, on the base table 1, a two-needle sewing machine 2 for sewing a belt loop piece 8a to a body cloth, and a belt loop piece feeding device 3 adjacent to the two-needle sewing machine 2 are provided. And a belt loop material feeding device 4 including a belt loop material feeding mechanism 5, a cutter mechanism 6, and the like. That is, the belt loop material supply device 4 feeds out and cuts the continuous belt-shaped belt loop material 8 by a predetermined length, and the cut belt loop piece 8a is cut by the belt loop piece supply device 3 into the body of the two-needle sewing machine 2. It is supplied from the side to the sewing position on the cloth, and bartacking is performed on both ends of the belt loop piece 8a by the two-needle sewing machine 2.

The belt loop piece feeding device 3 is shown in FIG.
~ It demonstrates based on FIG. A mounting base 11 having a substantially U-shape in a side view is fixed to a portion near the right end on the base table 1, and a pair of front and rear vertical wall portions 11 of the mounting base 11 are fixed.
Both front and rear end portions of the pivot shaft 12 oriented in the front-rear direction are fixed to a and 11b, respectively. At the front end of this pivot 12,
The right end portion of a swing member 13 extending in the left-right direction is fixed, and between the pair of left and right support portions 13a and 13b of the swing member 13, the left and right end portions of a pair of upper and lower guide shafts 14 extending in the left-right direction, respectively. It is fixed. These pair of guide shafts 14
A loop piece supply mechanism 15 is supported on the.

That is, the rear end portion of the first support block 16A is supported by the pair of guide shafts 14 so as to be slidable in the left-right direction.
A first inner block 16B is provided inside the first support block 16A so as to be rotatable about a shaft 16c.
The first rotary cylinder 17 is disposed in the first inner block 16B so as to extend leftward, and the rod 17a of the first rotary cylinder 17 extends leftward. Also, the first
A tension spring 16D is hooked between the support block 16A and the first inner block 16B, and is configured to urge the first inner block 16B and the first rotary cylinder 17 upward.

A rear end portion of the scale-supporting support plate 18 which is 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 first support block 16
At the left end of A, a right end of a support plate 20 that supports a first movement blocking member 22 described later is screwed. The rod 17a of the first rotary cylinder 17 has a rod 17a
A rotary shaft 19 that rotates together with the rotary shaft 1 is fixed.
A fork-shaped first grip portion 21 is provided at the tip portion (left end portion) of 9
Is stuck.

As shown in FIG. 5, the first grip portion 21 has a pair of upper and lower forks 21a, 21 having a predetermined gap.
b are integrally formed, and these forks 21a, 21
The belt loop piece 8a supplied between b can be gripped in a sandwiched manner. At the left end of the support plate 20, a horizontal portion of a first movement blocking member 22 formed in a substantially inverted L shape (key shape) in a side view is screwed. The vertical portion of the first movement blocking member 22 is provided at a position immediately near the front side of the first grip portion 21, and a locking portion 22a protruding downward is formed at the tip portion thereof.

Therefore, when the belt loop piece 8a is clamped on the inner side between the forks 21a and 21b, the engaging portion 22 is formed.
While slightly lifting a, it passes through the locking portion 22a. At this time, the first movement blocking member 22 remains in contact with the upper surface of the belt loop piece 8a and remains in contact with the belt loop piece 8a at the locking portion 22a.
Since the left side surface of the belt loop piece 8a is locked, the belt loop piece 8a is prevented from moving toward the tip side (left side) of the first grip portion 21. An elongated hole 18a oriented in the front-rear direction is formed in the graduated support plate 18, and the second support block 25A is supported by the graduated support plate 18 by a pair of front and rear screws 26 through the elongated hole 18a.

Inside the second support block 25A, a second
The inner block 25B is provided so as to be rotatable around a shaft 25c. Then, the second rotary cylinder 27 is disposed in the second inner block 25B in the leftward direction, and the 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,
Second internal block 25B and second rotary cylinder 27
Is configured to be biased upward. At the left end of the second support block 25A, a second movement blocking member 3 described later is provided.
The right end of the support plate 29 that supports 1 is screwed.

The rod 27a of the second rotary cylinder 27
A rotary shaft 28 that rotates together with the rod 27a is fixed to the rotary shaft 28, and a fork-shaped second grip portion 30 is fixed to the tip (left end) of the rotary shaft 28. As shown in FIG. 4, the second grip 30 has a second grip 30.
As shown in FIG. 4, a pair of upper and lower forks 30a and 30b having a predetermined gap are integrally formed, and the belt loop piece 8a supplied between the forks 30a and 30b can be grasped in a sandwiched manner. ing. In this case, as shown in FIG. 2, the second rotary cylinder 27 is arranged so as to be displaced from the mounting position of the first rotary cylinder 17 in the length direction (left-right direction) of the first grip portion 21.

That is, a portion of the first support block 16 corresponding to the second rotary cylinder 27 is largely cut out, and the first rotary cylinder 1 of the second support block 25 is cut.
Since the portion corresponding to 7 is largely cut out, even when the pair of gripping portions 21 and 30 are brought close to each other, 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 do not interfere with each other. The pair of grip portions 21, 30 are closer to each other without being affected by the width dimension of the second rotary cylinders 17, 27, that is, when viewed from the length direction of the grip portions 21, 30, the first and second rotary cylinders 17 , 27 can be brought close to each other in an overlapping manner.

At the left end of the support plate 29, a horizontal portion of a second movement preventing member 31 formed in a substantially inverted L shape (key shape) in a side view is screwed. The vertical portion of the second movement blocking member 31 is provided in the vicinity of the rear side immediately behind the second grip portion 30, and a locking portion 31a protruding downward is formed at the tip thereof.

In this case, the second movement prevention member 31 acts in the same manner as the engagement portion 22a of the first movement prevention member 22 by the engagement portion 31a while being in contact with the upper surface of the belt loop piece 8a. Since the left side surface of the belt loop piece 8a sandwiched by the two grip portions 30 is locked, the belt loop piece 8a is prevented from moving toward 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 ends of the belt loop piece 8a are folded back.

By simply loosening the pair of screws 26, the distance between the second support block 25 and the first support block 16 can be arbitrarily set according to the loop piece length of the belt loop piece 8a. Therefore, the distance between the second support block 25 and the first support block 16, that is, the distance between the second grip 30 and the first grip 21 can be electrically detected at the right end of the loop piece supply mechanism 15. Potentiometer 35 which is a displacement detector
Are installed horizontally. This potentiometer 35
Is a general one, and briefly described, as shown in FIG. 6, one end side of the resistor 36 having a predetermined length is grounded, and the reference voltage + V is applied to the other end side.

A contact 37 is provided which can slide back and forth while always contacting the resistor 36, and the contact 37 is connected to the second support block 25. Therefore, since the voltage v corresponding to the movement position of the contact 37, that is, the position of the second support block 25 is output from the contact 37, the movement of the second support block 25 based on the output voltage v. The position, that is, the distance between the two grips 21 and 30 can be easily calculated. in this case,
Based on the output voltage signal, it can be used to adjust the feed length of the belt loop or the spacing of the loop gripping device.

Next, the moving mechanism 40 for moving the loop piece supplying mechanism 15 left and right via the swinging member 13 will be described with reference to FIGS. A guide member 4 having a substantially gate-shaped cross section in which a horizontal notch 41a extending in the left-right direction is formed in a horizontal support wall portion 13a extending rearward of the swing member 13.
1 is fixed, and the first moving cylinder 43 is fixed to the guide member 41 via a damper holding plate 42 made of a bent plate material. Further, the first moving cylinder 4
The second moving cylinder 44 is arranged in parallel with the third moving cylinder 44, and the second moving cylinder 44 is fixed to the connecting plate 45 fixed to the tip portion of the rod 43a of the first moving cylinder 43.

In this case, the connecting plate 45 is formed so that the guided portion 45a fitted in the rectangular notch 41a extends rightward. The tip of the rod 44 a of the second moving cylinder 44 is connected to the first support block 16 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 both grips 21 and 30 are located at the retracted position PB. A damper 47 is attached to the damper holding plate 42 for absorbing a shock when the rod 43a of the first moving cylinder 43 is driven to advance.

Next, a swing mechanism 50 for swinging the loop piece supply mechanism 15 up and down via the swing member 13 will be described with reference to FIGS. A right end portion of a rotating lever 51 is fixed to the pivot shaft 12, and an L-shaped pivot support plate 52 in a side view 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 support plate 52, and the second swing cylinder 53 is
The rod 54 a of the swing cylinder 54 is connected to the left end of the turning lever 51.

Here, only the case where only the second swing cylinder 54 is driven to advance, and the case where the first and second swing cylinders 5 are driven.
The loop piece supply mechanism 15 is capable of swinging to two swinging positions when both 4 and 4 are driven to advance at the same time. Therefore, the tips of the two grips 21 and 30 have the shapes shown in FIGS.
As shown in FIG. 1, the first and second swing cylinders 53 and 54 are driven to advance and the first and second moving cylinders 40 and 41 are moved.
When is driven to retreat, it is located at the retreat position PB.

In this state, when only the first moving cylinder 43 is driven to advance, it moves to the delivery position PU, and in this state, the first swing cylinder 53 is retracted and the second moving cylinder 43 is replaced by the second moving cylinder 43. When only the moving cylinder 44 is driven to move forward, it moves to the standby position PT, and the second swing cylinder 5
4 also moves to the sewing position PH when it is driven to move in and out and the first moving cylinder 43 is driven to move forward.

Next, the belt loop material 8 fed from a loop material supply source (not shown) is cut into a predetermined length by the cutter mechanism 6, and the belt loop piece 8 is fed to the belt loop piece supply device 3.
FIG. 8 shows the belt loop material supply device 4 for supplying a.
~ It demonstrates based on FIG. However, although the belt loop material supplying device 4 is arranged in an inclined shape inclined to the right side as shown in FIG. 1, it is a view seen obliquely from below in each of FIGS.

First, the belt loop material feeding mechanism 5 will be described. A feeding substrate 63 is horizontally fixed on the base table 1 through a pair of front and rear frame plates 61 and 62 which are vertically arranged in a front view and are provided on a substrate 60. The feeding substrate 63 has a loop material. A first guide member 64 that guides the right end (reference side) of the continuous belt-shaped belt loop material 8 fed from the supply source in the front-rear direction is fixed in a vertical direction, and is opposed to the first guide member 64. The second guide member 65 is arranged parallel to the first guide member 64 and is slidable in the left-right direction. Here, the first guide member 64 is a reference side fixedly provided.

Therefore, the belt loop material 8 fed from a loop material supply source (not shown) is guided by the pair of guide members 64 and 65, and is arranged on the downstream side in the moving direction F of the feeding substrate 63, which will be described later. It is cut by the movable blade 104 of the cutter mechanism 6 for cutting. Therefore, a guide roller 66 that is in contact with the lower side of the belt loop material 8 to be fed is rotatably attached to the downstream end of the feeding substrate 63.
Further, the lower end of a vertically oriented cylindrical member 67 that supports a fixed-side pivoting screw 77 of a link mechanism 75, which will be described later, is fixed to the left end of the feeding board 63.

A moving block 68 is arranged 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. A lower end portion of a cover member 69 made of a plate material and having an inverted U-shape in a front view is fixed to the moving block 68. Then, as shown in FIGS. 8 to 10, an L-shaped plate 70, which is substantially L-shaped in a side view, is provided at a middle portion in the height direction of the cover member 69.
The vertical portion of the L-shaped plate 70 is fixed with a screw, and a pair of front and rear support portions 70a and 70b that horizontally protrude to the right of the L-shaped plate 70 are formed with long holes 70c in the front-rear direction.

Next, a parallelogram link mechanism 75 in which four link plates 76 are connected in a parallelogram will be described with reference to FIGS. Four link plates 7 of specified length
6 are combined to form a parallelogram, and the left side connecting portion (corresponding to the first connecting portion) is connected to the upper end portion of the fixed side cylindrical member 67 described above by the pivot screw 77. In addition, the front connecting portion (corresponding to the second connecting portion) is a pivot screw 7
The shaft portion of the pivot screw 78 is fitted in the elongated hole 70c of the support portion 70a so as to be movable back and forth.

The rear connecting portion (corresponding to the third connecting portion) is connected by a pivot screw 79, and the shaft portion of the pivot screw 79 is fitted in the elongated hole 70c of the support portion 70b so as to be movable back and forth. I am fit. Here, a link drive plate 80 bent in a substantially U shape in a front view is disposed on the delivery substrate 63, and a sliding portion 80a below the link drive plate 80 is attached to the delivery substrate 63. A pair of front and rear guide plates 81 and 82 fixed to each other are slidable in the left-right direction.

Further, the right connecting portion (corresponding to the fourth connecting portion) is connected by a pivotal screw 83, and is also connected by the pivotal screw 83 to the upper end of the link drive plate 80. The right end portions of the guide pins 84 and 85 extending in the left-right direction are respectively fixed at two positions before and after the second guide member 65, and the left end portions of these 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. In the middle of these guide pins 84 and 85,
Dice-shaped spacer blocks 86 are fixed respectively.

Then, the support portion 80b of the link drive plate 80
The compression coil spring 87 is provided between the spacer block 86 and the spacer block 86.
Are each exterior. Therefore, the second guide member 65 is always elastically biased rightward by the pair of compression coil springs 87. By the way, the tip 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 turned clockwise, the moving block 68 moves to the right.

In this case, a pair of front and rear pivot screws 7 engaged with the elongated holes 70c through the cover member 69 and the L-shaped plate 70.
Since 8, 79 simultaneously move to the right with respect to the left side connecting portion on the fixed side, the pair of front and rear pivot support screws 78, 79 are connected to the right side via the parallelogram link mechanism 75. Move to the right by a moving distance that is twice the moving distance to move to. As a result, the second guide member 65 moves to the right along with the link drive plate 80 by a movement distance that is twice that, so that the separation distance of the second guide member 65 from the first guide member 64 can be adjusted small.

On the contrary, when the adjusting screw 88 is turned counterclockwise, the cover member 69 and the L-shaped plate 70 are moved leftward, and the second guide member 65 is moved through the link drive plate 80. Can be moved to the left by a movement distance that is twice the distance, and the separation distance of the second guide member 65 from the first guide member 64 can be greatly adjusted. Here, the cutter mechanism 6 is arranged on the upper side of the cover member 69, and the second guide member 65 moves in the left-right direction in conjunction with the movement of the cutter mechanism 6 in the left-right direction. However, the moving amount of the second guide member 65 is about twice the moving amount of the cutter mechanism 6.

As shown in FIGS. 8, 12, and 13, the moving block 68 is provided with a belt feeding motor 90 which is a stepping motor, and the roller supporting plate 91 is installed upright on the moving block 68. A feed roller 92 having an outer peripheral portion formed in a gear shape is rotatably supported by a pivot shaft 93 so as to face the guide roller 66. The feed roller 92 is the guide roller 6
The belt loop material 8 is driven to rotate by the belt feed motor 90 through the timing belt 94 in cooperation with the belt loop material 8 and supplied from the loop material housing portion (not shown) to the cutter mechanism 6 by a predetermined length. It is like this.

Next, the cutter mechanism 6 will be described with reference to FIGS.
It will be described with reference to FIG. A horizontal support plate 96 is disposed on 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 of 7, and a cutting air cylinder 99 is attached downward at a position corresponding to the front end of the upper surface of the rotating plate 98.

At the position corresponding to the left end of the rotating plate 98,
The rotating air cylinder 100 is arranged in the front-rear direction, the rear end of the rotating air cylinder 100 is pivotally supported horizontally on the rear end of the support plate 96, and the front end of the piston rod 100a rotates. It is connected to the moving plate 98. That is, when the rotating air cylinder 100 is driven to the advanced position (shown by the solid line), the rotating plate 98 rotates counterclockwise in plan view to the position shown by the solid line, and the rotating air cylinder 100 retracts. When driven to move in and out to the entry position (shown by a chain line), the rotating plate 98 rotates clockwise in a plan view to the position shown by a chain line.

By the way, the upper end portion of the blade support plate 102 in the up-down direction is attached to the downwardly extending connecting plate 101 integrally formed with the rotating plate 98, and the cutout portion 102a of the blade support plate 102 is provided immediately. The fixed blade 103 is fixed to the lower side. On the other hand, the upper end of the movable blade 104 is screw 1 at the lower end of the piston rod 99a of the cutting air cylinder 99.
05, the movable blade 104 is connected to the blade support plate 10
The pair of left and right guide members 106 and 107 fixed to the left and right ends of the two guides 106 and 107 so as to be vertically movable.

Here, the blade supporting plate 102 is provided with screws 105.
A vertically long slit 102b is formed to allow the vertical movement of the slit. Further, a cutting portion including the movable blade 104 and the fixed blade 103 is provided close to the downstream side in the transport direction F of the belt loop material 8. As a result, when the movable blade 104 is moved downward while being guided by the pair of guide members 106 and 107 by the advancing drive of the cutting air cylinder 99, the belt loop material 8 supplied to the notch portion 102a is removed. The movable blade 104 and the fixed blade 103 cooperate to cut.

Here, the movable blade 104 and the fixed blade 10 are
3 comprises a cutting blade. Also, as mentioned above,
At the same time that the rotating plate 98 is rotated by the advancing drive and the retracting drive of the rotating air cylinder 100, at the same time, the blade supporting plate 102 provided with the movable blade 104 and the fixed blade 103 is integrated over about 65 °. By rotating to the air cylinder 10 for rotation
The first cutting is performed at the position of 0 for the advancing drive, and then the second cutting operation is performed at the position of the rotating air cylinder 100 for the retracting drive, so that the belt loop piece 8a becomes V-shaped (triangular). Be disconnected.

Here, the adjusting screw 88 and the moving block 6
8, the cover member 69, the support plate 96, and the like constitute cutter position adjusting means, and the cover member 69, the L-shaped plate 70, the long hole 7
0c, the parallelogram link mechanism 75, the link drive plate 80 and the like constitute an interlocking mechanism, and the link drive plate 80, the guide pins 84 and 85, the compression coil spring 87 and the like constitute a guide mechanism.

Next, the operation and effect of the belt loop material supplying device 4 and the belt loop piece supplying device 3 thus constructed will be described. Here, the belt loop material 8 is made of cloth having a belt width of about 6 to 14 mm, and the loop material supply source that winds the belt loop material 8 and accommodates it is not shown, but the belt loop material supply device 4 Is provided upstream of the transfer direction F.

First, the operator operates the first guide member 64.
The adjusting screw 88 is rotated clockwise or counterclockwise so that the distance between the second guide member 65 and the second guide member 65 corresponds to the width dimension of the belt loop material 8 fed from the loop material supply source. When the adjusting screw 88 is rotated clockwise, FIG.
2, as shown in FIG.
The guide member 65 moves to the right, and the first guide member 64
The separation distance of the second guide member 65 with respect to can be adjusted to be small.

On the contrary, when the adjusting screw 88 is rotated clockwise, as shown in FIGS.
The second guide member 65 moves leftward via the parallelogram linkage mechanism 75 and the parallelogram link mechanism 75, and the separation distance of the second guide member 65 from the first guide member 64 can be greatly adjusted. In this case, the cutter mechanism 6 integrally attached to the cover member 69 and the movement of the second guide member 65 leftward or rightward are interlocked, and the second guide member 65 is moved via the link mechanism 75. Cutting blade 103 of the cutter mechanism 6,
It can be moved by twice the moving amount of 104.

For example, when the belt width of the belt loop material 8 is "14 mm", the cutter mechanism 6 is set to about 7
By moving the second guide member 65 by 14 mm, which is twice that of the second guide member 65, in the width direction of the belt loop member 8, the second guide member 65 is moved to the optimum position according to the belt width W, and the movable blade 104 and the fixed blade 103 Since the cutting part by can be moved, a clean V
Character cutting can be realized. Therefore, the operator does not have to adjust the position of the cutter mechanism 6 and only has to adjust the position by turning the adjusting screw 88 clockwise or counterclockwise.
It is possible to simplify the preparation for sewing the belt loop piece 8a.

Next, the operator uses both grips 21, 30.
Match the separation distance of. In this case, a pair of screws 26
Is loosened and the second support block 25 is moved back and forth, and the distance between the two grips 21 and 30 is appropriately adjusted according to the length of the belt loop piece 8a. By the way, a pair of grips 21,
When 30 is brought close to each other, as described above, the first rotary cylinder 17 and the second rotary cylinder 27 are held by the grip portion 2.
Since the first and second rotary cylinders 17 and 27 do not interfere with each other because the first and second rotary cylinders 17 and 30 are displaced from each other in the lengthwise direction, the first and second rotary cylinders 17 and 27 do not interfere with each other. The second rotary cylinders 17 and 27 can be brought close to each other so as to overlap.

Therefore, the distance between the gripping portions can be made as small as possible, the belt loop piece 8a shorter than the conventional one can be sandwiched, and both ends of the belt loop piece 8a can be surely folded back. Then, the belt loop sewing operation is started. When the feed motor 90 is driven, the belt loop material 8 is fed out by a predetermined length via the timing belt 94 and the feed roller 92, and the drive of the feed motor 90 is stopped, the position is set to the retracted position PB as shown in FIG. Both gripping parts 21 and 30 moved to the delivery position PU by the advancing drive of the first moving cylinder 43. 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 belt loop material 8 fed out
The front end of each of the forks 21a of the grips 21 and 30,
21b, 30a, and 30b, respectively, and at the same time, the locking portions 22a and 31 of the movement preventing members 22 and 31 are gripped.
Since the locking loops 22a and 31a pass through the locking loops 22a and 31a, respectively, while the a is slightly lifted, the left side surface of the belt loop member 8 is held by each gripping section 2a.
These locking portions 22a, 31 at positions near 1, 30
It is locked by a respectively. Therefore, these both movement prevention members 2
It is possible to enhance the effect of preventing movement by 2, 31.

In this state, the cutter mechanism 6 is driven. In this case, as described above, first, the rotating air cylinder 100 is driven to advance and the first cutting is performed by lowering the movable blade 104, and the blade supporting plate 102 is rotated by about 65 ° to rotate the rotating air cylinder 100. The second cutting operation is executed by the movable blade 104 after the retreat drive is performed, and as shown in FIG. 18, both ends of the belt loop piece 8a cut in a V shape, that is, a triangular shape have a pair of gripping portions. It will be sandwiched between 21 and 30, respectively. At this time, the cutter mechanism 6
Since the second guide member 56 has moved in the same direction by half the movement amount, even if the belt width W is different, the belt width W
It is possible to match the vertices of the V-shaped cut at the position of half (W / 2).

Then, as shown in FIG. 19, the first and second rotary cylinders 17 and 27 are simultaneously rotated by about 270 °, and both ends of the belt loop piece 8a are folded back inward. In this case, the belt loop piece 8a is locked by the locking portions 22a and 31a of the movement blocking members 22 and 31,
Since the left side surfaces are respectively locked to prevent the grip portions 21 and 30 from moving toward the tip end side, the grip portion 2 does not move with respect to the grip portions 21 and 30 of the belt loop piece 8a.
Since the directions of 1 and 30 are surely orthogonal to the belt loop piece 8a, a so-called dog ear in which the folded-back portion protrudes outside the belt loop piece 8a does not occur.

Next, the first swing cylinder 53 is retracted, and only the second moving cylinder 44 is driven to advance instead of the first moving cylinder 43, so that both grips 21 and 30 move to the standby position PT. To do. When the preparation for sewing 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 move forward, so that both grips 21 and 30 move to the sewing position PH, respectively. To do. At this time, the presser foot of the two-needle sewing machine 2 presses both forks 21a, 21b, 30a, 30b of the grips 21, 30 from above, and the grips 21, 30 pull the tension springs 16D, 25.
It descends against the spring force of D.

As a result, the locking portions 22a and 31a of the movement preventing members 22 and 31 are in a state of being lifted upward with respect to the grip portions 21 and 30, and the belt loop piece 8a.
Since the above-mentioned blocked state is released, the belt loop piece 8a can be reliably and stably supplied to the predetermined sewing position. After that, bartacking is performed on both ends of the belt loop piece 8a by the two-needle sewing machine 2. In this bartack sewing, the folded portion of the belt loop piece 8a does not protrude outside the belt loop piece 8a, so that the sewn belt loop piece 8a can have a good appearance.

Next, a modification of the above embodiment will be described. 1] As shown in FIGS. 20 to 22, a pinion rack mechanism 110 may be used instead of the parallelogram link mechanism 75. That is, the T-type support block 111 is horizontally fixed with screws at a predetermined height position of the cover member 69, and the pinion 112 provided between the T-type support block 111 and the feeding substrate 63 is fixed by the T-type support block 111. It is rotatably supported. A fixed-side rack (one rack) 113 that meshes with the pinion 112 on the front side is fixed to the fixed-side delivery board 63 (corresponding to a stationary member in this case) with screws.

Further, the right end of a movable rack (the other rack) 114 that meshes with the pinion 112 on the rear side is connected to the second guide member 65. In this case, adjustment screw 8
When the position adjustment by 8 is performed, the fixed rack 113
On the other hand, since the pinion 112 rotates to the right or left while rotating, the movement amount of the rack 114, that is, the movement amount of the second guide member 65 is equal to the movement distance of the cutter mechanism 6.
It is equivalent to double.

Also in this case, it is only necessary to adjust the position with the adjusting screw 88, and the preparation for sewing the belt loop piece 8a can be simplified. 2] Parallelogram link mechanism 75 and pinion rack mechanism 1
In place of 10, the movable side guide member 65 is replaced by the cutter mechanism 6
Various interlocking mechanisms capable of moving by twice the moving amount of the cutting blade may be provided. 3] The present invention is not limited to the embodiments described above, and various modifications can be added without departing from the spirit of the present invention and the present invention can be applied.

[0063]

According to the invention of claim 1, a cutter mechanism for cutting the belt loop material into belt loop pieces is provided, and the belt loop material from the loop material supply source is guided by the pair of guide members. In the belt loop material supply device for the sewing machine which is fed to the cutter mechanism, a cutter position adjusting means, a guide mechanism, and an interlocking mechanism are provided, and the position of the cutting blade of the cutter mechanism is adjusted by the cutter position adjusting means to the width of the belt loop material. When adjusted in the direction, the guide member on the other movable side moves in the width direction of the belt loop material by the interlocking mechanism via the guide mechanism by twice the amount of movement of the position adjusted cutting blade. It is only necessary to adjust the position by the cutter position adjusting means without adjusting the position, and it is possible to simplify the preparation for sewing the belt loop piece.

According to the invention of claim 2, the interlocking mechanism has a parallelogram link mechanism in which four link plates are connected in a parallelogram shape. Therefore, by using a simple parallelogram link mechanism, The other guide member can be moved in the width direction of the belt loop material by twice the movement amount of the position-adjusted cutting blade.

According to the invention of claim 3, the parallelogram link mechanism includes a first connecting portion, second and third connecting portions facing each other, and a fourth connecting portion facing the first connecting portion. Have, first
Since the connection part is fixed to the stationary member, the second and third connection parts are connected to the cutting blade of the cutter mechanism, and the fourth connection part is connected to the other guide member, the first connection part on the fixed side is Then, the cutting blade of the cutter mechanism moves by the amount of movement of the second and third connecting portions facing each other, and the other guide member moves to the cutting blade via the movement of the fourth connecting portion facing the first connecting portion. It can be moved in conjunction with twice the amount of movement.

According to the invention of claim 4, the interlocking mechanism has a rack and pinion mechanism including one pinion and a pair of rack members meshing with both sides of the pinion.
Since the pinion is connected to the cutting blade of the cutter mechanism, one rack member is fixed to the stationary member, and the other rack member is connected to the other guide member, movement of the pinion that meshes with one rack member on the fixed side The cutting blade of the cutter mechanism is moved by the amount, and the other guide member can be moved in association with the movement amount of the cutting blade by the movement of the other rack member meshing with the pinion.

[Brief description of 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 grip portion.

FIG. 6 is an explanatory diagram illustrating a structure of a potentiometer.

FIG. 7 is an operation chart of a cylinder included in the loop piece supply device.

FIG. 8 is a side view of the belt loop material supply device.

FIG. 9 is a waist side schematic side view of the belt loop material supply device.

FIG. 10 is a schematic front view of a waist portion of the belt loop material supply device.

FIG. 11 is a schematic plan view of the waist of the belt loop material supply device.

FIG. 12 is a plan view of a belt loop material supply device for supplying a wide belt loop material.

FIG. 13 is a front view of a belt loop material supply device for supplying a wide belt loop material.

FIG. 14 is a plan view of a cutter device.

FIG. 15 is a front view of a cutter device.

FIG. 16 is a plan view of a belt loop material supplying device for supplying a narrow belt loop material.

FIG. 17 is a front view of a belt loop material supply device for supplying a narrow belt loop material.

FIG. 18 is an enlarged plan view of both grips.

FIG. 19 is a view corresponding to FIG. 18 when both ends are rotated.

FIG. 20 is a view corresponding to FIG. 9 according to the modification.

FIG. 21 is a view corresponding to FIG. 10 according to the modification.

22 is a view corresponding to FIG. 11 according to the modification.

[Explanation of symbols]

2 2-needle sewing machine 4 Belt loop material supply device 6 Cutter mechanism 8 Belt loop material 8a Belt loop piece 64 First guide member 65 Second guide member 68 Moving block 69 cover member 70 L plate 70c long hole 75 Parallelogram Link Mechanism 80 link drive plate 84 Guide pin 85 Guide pin 87 Compression coil spring 88 adjustment screw 96 support plate 103 fixed blade 104 movable blade 110 pinion rack mechanism 112 Pinion 113 Fixed side rack (one side rack) 114 Movable rack (other rack)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Motoyuki Nakano             Brother, 15-1, Naeshiro-cho, Mizuho-ku, Nagoya             Industry Co., Ltd. (72) Inventor Akira Nishio             Brother, 15-1, Naeshiro-cho, Mizuho-ku, Nagoya             Industry Co., Ltd. (72) Inventor Koichi Akabane             Brother, 15-1, Naeshiro-cho, Mizuho-ku, Nagoya             Industry Co., Ltd. (72) Inventor Toshiyuki Sano             Brother, 15-1, Naeshiro-cho, Mizuho-ku, Nagoya             Industry Co., Ltd. F term (reference) 3B150 AA11 AA16 AA20 AA22 BA03                       BA12 BB04 CB14 CC02 CE23                       CE25 DE03 DE07 DE27 DE33                       ED02 ED08 ED09 EE01 EE07                       EE12 EE15 GD21 GE06 JA07                       JA13 JA30 JA31 LA32 LB01

Claims (4)

[Claims] 1. A sewing machine comprising a cutter mechanism for cutting a belt loop material into a belt loop piece, and feeding the belt loop material from a loop material supply source toward a cutter mechanism while guiding it with a pair of guide members. In the belt loop material supply device, a cutter position adjusting means capable of adjusting the position of the cutting blade of the cutter mechanism in the width direction of the belt loop material, and a fixedly provided reference of one of the pair of guide members. With respect to the side guide member, a guide mechanism that guides the other movable guide member in the width direction of the belt loop material so as to be movable, and a cutting blade of the cutter mechanism and the other guide member are interlocked and coupled, A sewing machine, comprising: an interlocking mechanism that moves the other guide member by twice the amount of movement of the cutting blade whose position has been adjusted by the cutter position adjusting means. Rutorupu material supply device. 2. The belt loop material supplying device for a sewing device according to claim 1, wherein the interlocking mechanism includes a parallelogram link mechanism in which four link plates are connected in a parallelogram shape. 3. The parallelogram link mechanism includes a first connecting portion, second and third connecting portions facing each other, and a fourth connecting portion facing the first connecting portion, and the first connecting portion. Is fixed to a stationary member, the second and third connecting portions are connected to a cutting blade of a cutter mechanism, and the fourth connecting portion is connected to the other guide member. Belt loop material supply device for equipment. 4. The interlocking mechanism has a rack and pinion mechanism including one pinion and a pair of rack members meshing with both sides of the pinion, the pinion being connected to a cutting blade of a cutter mechanism, 2. The belt loop material supply device for the sewing device according to claim 1, wherein the rack member of No. 1 is fixed to a stationary member, and the other rack member is connected to the other guide member.