JP2000007129A - Carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrying device for sewing leaf tobacco on a cord, in which the leaf tobacco direction (angle) of hanging down at the cord is changeable. SOLUTION: This carrying device is equipped with a carrying means 10 which can transport tobacco in the hung-down condition in one direction upon pinching the tobacco near its leaf shank, a cord supplying means 30 to supply a cord 3 in the condition that a specified tension is given along the moving path near the leaf shank by the transporting means 10, a stitch forming means 20 having a cord guide groove to guide the cord 3 supplied by the means 30 along the moving path and a needle 22 installed opposing to the cord guide groove about the moving path in between and forming a stitch of single thread loop form in the cord 3 through reciprocation in the direction across the moving path together with a feed motion along the moving path, and a cord cutting means 100 which cuts the cord when the cord 3 after formation of the stitch of single thread loop form has passed a certain length in a position downstream of the stitch forming means 20 in the moving path, whereby the leaf shank is sewn on the cord 3 in the condition that leaf tobacco is hung down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying device for sewing a string or the like on the upper end side of a petiole or the like while a conveyed object such as leaf tobacco is suspended.

[0002]

2. Description of the Related Art Conventionally, for drying plants such as "leaf tobacco" and "dokudami" or dried fish and shellfish such as squid in a sunshine or a drying room, a predetermined length of a string is used. As one of the methods, a conveyed material to be dried is sent to a belt conveyor, and the upper end thereof is sewn to the string to be attached to the string. After weaving into the string, thread cutting of the sewing machine and cutting of the string are performed.

[0003]

However, when plants are conveyed by a conveyor as in the prior art, the direction (angle) of a large number of plants braided and hung on a string becomes along the conveyor surface. I was Therefore, because the width is taken in the transport direction, it is not possible to increase the number of articles sewn on the unit-length string, and if it is increased, the transport units overlap and multiply drying, and the plant suspended on the string There is a problem that it is not possible to respond to a request to change the direction (angle) as necessary. Further, when the fish meat is conveyed while being placed on a belt conveyor like seafood, the fish meat may be damaged due to friction or the like due to vibration.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a transport device capable of changing the direction (angle) of a transported object such as leaf tobacco suspended on a string. Another object of the present invention is to be able to hold a transported object such as leaf tobacco on a string without damaging it.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an invention according to claim 1 is a transporting device for sewing a transported object to a string, wherein the transported object is to be transported in a suspended state. A transporting means for sandwiching the vicinity of the upper end and enabling transport in one direction; a cord supply means for supplying a string with a predetermined tension applied along a movement path near the upper end of the conveyed object by the transporting means; A string guide groove for guiding the string supplied by the string supply unit along the movement path, and the string guide groove is disposed opposite to the string guide groove with the movement path interposed therebetween, and includes a feeding motion along the movement path. A stitch forming means having a needle for forming a single thread stitch on the string by reciprocating in a direction intersecting with the moving path, and the single thread ring further downstream of the moving path than the stitch forming means. After seam formation Serial string is characterized by structure, that is to sew an upper end to said strap in a state of including a strap cutting means, and hung the conveyance object of cutting the cord from passing through the predetermined length.

Here, examples of the conveyed material include plants such as leaf tobacco, but other plants and foods may be used. Examples of the transporting unit include a pair of feed belts arranged in parallel, but other mechanisms may be used. The string supply means preferably has, for example, functions such as loosening, entanglement, and tension adjustment of the string, but the specific configuration is arbitrary. The stitch forming means is a sewing portion of the sewing machine, and the sewing machine is provided with a thread cutting means for performing thread cutting after sewing. The string cutting means may have any configuration as long as it has a function of cutting a string.

[0007] As described above, according to the first aspect of the present invention, the conveyed object is conveyed in one direction while sandwiching the vicinity of the upper end by the conveying means, and the cord is supplied along the movement path near the upper end of the conveyed object. The string is supplied in a state where a predetermined tension is applied by the means, and while the string is guided by the stitch forming means, the single thread ring stitch is applied to the string in a reciprocating motion accompanied by a needle feeding motion with respect to the movement path. After forming a single thread ring stitch by the string cutting means, it is a transfer device that cuts the string at a place where it has passed a predetermined length, and conveys the conveyed object in a suspended state and sew the upper end to the string, The direction (angle) of the conveyed object suspended on the string can be changed.

According to a second aspect of the present invention, there is provided the transport device according to the first aspect, wherein the transport means has a pair of endless belts which hold the transported object near an upper end thereof, and transport the transported object. The configuration is such that the needle is transported at a transport speed synchronized with the feed movement speed.

As described above, according to the second aspect of the present invention, the conveying means according to the first aspect holds the conveyed object with the pair of endless belts sandwiching the vicinity of the upper end thereof and synchronizes the conveyed object with the needle movement speed. Since the sheet is transported at the transport speed, the string and the transported object can be transported reliably to the needle drop position.

According to a third aspect of the present invention, there is provided the transport device according to the first aspect, wherein the string supply means includes a string feeding means for feeding the string for a predetermined length, and the string fed by the string feeding means. It is characterized by having a tension applying means for applying a predetermined tension, and a string feeding means for feeding the string, to which the predetermined tension is applied by the tension applying means, to the position of the needle. For example, the string feeding means includes a drum for winding a string for a predetermined length, but any structure having a function of feeding the string for a predetermined length may be used. The tension applying means is
For example, one having a tension pulley for hanging a string may be mentioned, but any structure having a function of applying tension to the string may be used. The string feeding means is, for example, on the downstream side of the movement path with respect to the needle position,
It is a pair of rollers that sandwich and pull out the string.

Thus, according to the third aspect of the present invention, the string supplying means according to the first aspect draws out the string by a predetermined length by the string feeding means, and applies a predetermined tension to the fed string by the tension applying means. After the application, the string with the predetermined tension is fed to the needle position by the string feeding means, so that the string can always be supplied stably at a constant tension for a predetermined length, and the entanglement of the string can be prevented, In addition, the transported object can be hung on the string at regular intervals.

According to a fourth aspect of the present invention, there is provided the transport apparatus according to the first aspect, wherein the string cutting means includes scissors for cutting the string by an opening and closing operation; And a link mechanism for operating the moving body to close and reopen the scissors by one-way movement or reverse movement. For example, the moving body may be one that moves forward and backward along the feed screw, but any mechanism having a function of linearly reciprocating may be used. The link mechanism may be, for example, a toggle link type, but any structure having a function of operating the moving body so as to close and reopen the scissors by one-way movement or reverse movement. It may be something.

As described above, according to the fourth aspect of the present invention, the string cutting means according to the first aspect is configured such that the moving body is linearly moved in one direction or in the opposite direction, via the link mechanism.
Since the scissors are operated to be closed and then reopened, the scissors can be operated smoothly and at high speed.

According to a fifth aspect of the present invention, there is provided a transporting device for knitting a transported object into a string, which can be transported in one direction by sandwiching the vicinity of the upper end of the object to be transported in a suspended state. Conveying means, a string supplying means for supplying a string with a predetermined tension applied along a moving path near the upper end of the conveyed object by the conveying means, and moving the string supplied by the string supplying means A string guide groove that guides along the path, and is arranged to face the string guide groove with the moving path interposed therebetween, and reciprocates in a direction intersecting with the moving path with a feeding movement along the moving path. Stitch forming means having a needle for forming a single-thread ring stitch on the string, and the needle drops before and after the upper end of the conveyed article, and the string and the single-thread ring stitch thread Hold the conveyed object across the top Reluctant said to be transported in a state where the conveyance was suspended construction, it is characterized in.

Thus, according to the fifth aspect of the present invention, the transporting means transports the transported object in one direction while sandwiching the vicinity of the upper end thereof, and the cord supply means along the movement path near the upper end of the transported article. The string is supplied in a state where a predetermined tension is applied, and the seam forming means guides the string into the string guide groove, and applies a single thread ring stitch to the string in a reciprocating motion accompanied by a needle feeding motion with respect to the movement path. It is a transport device that forms, the needles drop down before and after the upper end of the transported object, and transports the transported item in a suspended state while holding and holding the upper edge of the transported item by the string and the single thread stitch thread, In addition to being able to change the direction (angle) of the conveyed object suspended on the string, the upper end of the conveyed object is sandwiched between the string and the single thread stitch thread,
Since the needle is not dropped on the upper end of the transported object, the transported object can be held on the string without being damaged.

The invention described in claim 6 is the first invention.
In the transport device according to or 2, the transported object is a leaf tobacco, and the leaf tobacco is sewn to the string with a petiole portion in a suspended state, or a needle drops before and after the petiole portion, It is transported in a suspended state while holding and holding the petiole between the string and the single thread ring stitch thread.

As described above, according to the invention of claim 6, the leaf tobacco is sewn to the string in a suspended state by the transport device of claim 1, or the leaf tobacco is sewn to the string. By the transport device, the needle drops before and after the petiole portion, and is transported in a suspended state while holding the petiole portion sandwiched between the string and the single thread stitch thread.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a transfer apparatus according to an embodiment of the present invention; FIG. First, FIG. 1 shows a schematic configuration of a transport device as an example to which the present invention is applied, and FIGS.
5 and 6 are string feeding means, FIG. 7 is string loosening means, FIGS. 8 to 10 are string entanglement means, FIG. 11 is string tension applying means, and FIGS. 12 and 13 are string tension adjustment. means,
14 to 16 show the string feeding means, and FIGS. 17 to 20.
Indicates string cutting means. In FIG.
1 is a leaf tobacco (conveyance), 3 is a string, 10 is a transportation means, 2
0 is a seam forming means, 30 is a string supply means, 40 is a string feeding means, 50 is a string loosening means, 60 is a string entanglement means, 70 is a string tension applying means, 80 is a string tension adjusting means, and 9 is a string tension adjusting means.
Numeral 0 denotes a string feeding unit, and 100 denotes a string cutting unit.

The transport means 10 is a leaf tobacco 1
Is a type in which the petiole portion is sandwiched and held by a pair of endless belts 11, 11.
Are respectively hung on pulleys 12, 12 and a pulley (not shown), and are transported and driven by a motor (not shown).
The seam forming means 2 is provided in the middle of the moving path of the petiole of the leaf tobacco 1 by the conveying means 10 (between the endless belts 11 and 11).
0 is arranged. The seam forming means 20 is a sewing portion of a sewing machine, that is, a forward movement with a feed motion along a moving path of a sewing needle 22 attached to a needle bar 21 and a leaf stem of the leaf tobacco 1 of the sewing needle 22. And a needle plate 23 that allows retreating movement. As shown in FIG. 4, the needle plate 23 has a bent shape, and a string guide groove 24 formed on the outer surface thereof, and front and back surfaces of the needle plate 23 formed at an intermediate portion of the string guide groove 24. And a needle hole 25 formed by a long hole penetrating through the hole. The string supply means 30 supplies the string 3 formed of a jute string to the seam forming means 20. The string supply means 40 attached to the apparatus frame 31 and the base plate 32 fixed thereto shown in FIGS. As shown in FIG. 1, the string loosening means 50, the string entanglement means 60, the string tension applying means 70, the string tension adjusting means 80, and the string arranged on the downstream side of the leaf tobacco movement path with respect to the seam forming means 20 as shown in FIG. It is composed of feeding means 90. The string cutting means 100 is arranged on the downstream side of the leaf tobacco movement path from the string feeding means 90.

The string feeding means 40 feeds the string 3 pulled out from the string roll 4 by a predetermined length (for example, 4 m), and is provided with a drum 41 provided at the upper center of the base plate 32 and a drum 41 provided above the drum 41. And four string guide pulleys 44, 44, 44, 44. The drum shaft 41a is rotatably supported by the base plate 32, and roll supports 42, 42 are rotatably mounted on a portion of the drum shaft 41a protruding forward from the drum 41. The string roll 4 is mounted on the roll supports 42, 42 and is prevented from falling off by a thumb screw as shown in the figure. As shown in FIG. 5, a ratchet mechanism 43 is provided between the drum 41 and the roll support 42, and the string roll 4 is moved by the ratchet mechanism 43 with respect to the drum 41 only in the unwinding direction of the string. It is designed to rotate. As shown in FIG. 6, the four string guide pulleys 44, 44, 44, 44 each have a V-groove and are assembled on a common pulley shaft 44a via a collar so as to freely rotate. ing. The driving force of a motor 45 fixed to the lower center of the base plate 32 is transmitted to the drum shaft 41a by a chain sprocket mechanism 46.
Thereby, the drum 41 is driven to rotate. Although the direction of the motor 45 is different between FIG. 3 and other figures, the direction of the motor 45 may be any direction.

The string loosening means 50 is connected to the device frame 31.
2 and is disposed slightly below and to the right of the string feeding means 40 as shown in FIG. As shown in an enlarged view in FIG. 7, a swing arm 53 is swingably attached to a bracket 51 fixed on a lower portion of the apparatus frame 31 by a pin 52 so that the string loosening means 50 can swing. A string guide pulley 54 having a V groove is rotatably provided at the tip of the arm 53. A fan-shaped string guide plate 55 is fixed to the left end of the pulley shaft rotatably supporting the string guide pulley 54 in the drawing.

The string entanglement means 60 includes a base plate 3
A string guide 33 provided on the right side of the base 2 and having a hole through which the string 3 from the string loosening means 50 passes is attached to the base plate 32. This string entanglement means 60
As shown in an enlarged manner in FIG. 8, a drive-side string-entanglement elastic roller 61 having a semicircular groove having substantially the same diameter as the string 3,
Similarly, the cord 3 has a driven string entanglement roller 62 having a semicircular groove having substantially the same diameter as that of the cord 3. A circular hole h having substantially the same diameter as the string 3 is formed by the pair of the string-entanglement elastic roller 61 on the driving side and the string-entanglement roller 62 on the driven side, as shown in FIG. The driven side string entanglement roller 62 includes a support shaft 63 a fixed to the base plate 32.
Is provided rotatably on a swing arm 63 that is swingable around a fulcrum. The swing arm 63 is provided with a cord entanglement roller 6.
2 is urged in a counterclockwise direction by the force of a tension coil spring 64 provided between the end opposite to the base 2 and the base plate 32.

The driving-side string untangling elastic roller 61 is
Elastic roller 6 that rotates while being pressed against the outer peripheral surface of drum 41
5 and the rear side of the base plate 32, as shown in FIG. That is, on the back side of the base plate 32, a timing belt pulley mechanism 66 is provided on both roller shafts integrated with the elastic unrolling elastic roller 61 and the elastic roller 65, respectively, and a bearing for bearing each roller shaft is provided. A unit 67 is erected. The bearing unit 67 is slidably supported by a slide unit 68 provided on the base plate 32, and is urged toward the rotation center of the drum 41 by the force of a tension coil spring 69 provided between the bearing unit 67 and the base plate 32. Accordingly, the elastic roller 65 is pressed against the outer peripheral surface of the drum 41, and the elastic roller 65 rotates with the rotation of the drum 41 via the chain sprocket mechanism 46 driven by the motor 45, thereby causing the timing belt pulley mechanism 66 to rotate. The elastic body roller 61 that is entangled via the cord rotates in the direction opposite to the traveling direction of the cord 3. In this way, the driven-side string-entanglement roller 62 is pressed almost horizontally by the tension coil spring 64 against the string-entanglement elastic roller 61 rotating in the direction opposite to the traveling direction of the string 3, and the two rollers are semicircular. In a circular hole h formed by combining the grooves, the string 3 passes while being squeezed. In addition, a string guide part 34 for direction change is attached to the base plate 32 slightly above the right side of the above-described string entanglement means 60.

The string tension applying means 70 includes a base plate 3
2 is provided at the lower part from the left side. As shown in FIGS. 11 (a) and 11 (b), the string tension applying means 70 includes mounting bosses 35, 35, 3 raised on the base plate 32.
A pair of left and right guide rails 72, 72 extending in the vertical direction is provided on a rail plate 71 fixed to 5,..., And a string guide pulley 76 slidable in the vertical direction along the guide rails 72, 72 is provided. . That is, the left and right guide rails 7
A slide plate having a total of four rollers 74, 74, 74, 74 that are sandwiched between the stopper plates 73, 73 attached to the front and back surfaces of the guide rails 72, 72 and respectively contact the guide rails 72, 72. 75, a string guide pulley 7 having a V groove
6 are provided.

The string tension adjusting means 80 is connected to the device frame 31.
Is provided on a bracket 36 attached to the upper left side of the. The string tension adjusting means 80 is provided between upper and lower idler pulleys 37 provided on the bracket 36, as shown in FIGS. 12 (a) and 12 (b). It is located just above the string guide pulley 76 of the applying means 70 and is configured as shown in FIG. That is,
As shown in FIG. 13, the string tension adjusting means 80 is
A pair of tension discs 82 and 82 are assembled with a string tension screw 84 via a string tension bush 83. The tension coil spring 85 is mounted on the string tension screw 84 that penetrates the main body 81, and the spring ring 86 and the tension adjusting nut member 87 are attached to the tip of the string tension screw 84. Further, the main body 81 is fixed to the bracket 36 with a nut 88 at a position offset from the idler pulley 37. The string tension adjusting means 80 passes the string 3 between the pair of tension disks 82, 82, and adjusts the pinching pressure between the tension disks 82, 82 by operating the string tension screw 84. The string 3 fed out from the string tension adjusting means 80 via the upper idler pulley 37 is
The direction is changed by the string guide pulley 38 attached to the upper part of the apparatus main body 31 and sent to the needle plate 23.

The string feeding means 90 includes the seam forming means 2
It is provided on the downstream side of the leaf tobacco movement path from 0, and has a pair of string pull-out elastic roller 91 and string press elastic roller 92. As shown in FIG. 14, the string pull-out elastic roller 91
Is rotatably supported by a roller shaft 93 fixed to
The pulley 13 at the other end of the conveying means 10 is rotatably attached to the roller shaft 93 via a sprocket 14 below the cord pulling elastic roller 91. Rotational power from a drive source (motor) (not shown) is transmitted to the sprocket 14 via a chain. The string holding elastic roller 92 is rotatably mounted on a shaft support 94 as shown in FIGS.
Is connected to the support shaft 95. The support shaft 95 is incorporated in the shaft support member 96 so as to be slidable in the forward and backward directions, and the string pressing elastic roller 92 presses against the string pull-out elastic roller 91 by the force of the pressing coil spring 97 for adjusting the pressing pressure. It is biased in the forward direction. The support shaft 95
Is prevented from rotating by a key structure portion 98 with respect to the shaft support member 96.
9,99.

The shaft support member 96 is provided on the lower surface of a bracket 190 fixed to the apparatus frame 31 and is slidably assembled along a guide rail 191. On the bracket 190, a cam shaft 193 of a triangular cam 192 fitted to the cam abutment plates 99, 99 is rotatably supported, and the cam shaft 193 receives a driving force of a motor 195 installed on the bracket 190. It is transmitted via the timing belt pulley mechanism 194. The timing belt pulley mechanism 194 is driven by the driving of the motor 195.
When the triangular cam 192 rotates through the
A shaft support member 96 having 9, 99 moves back and forth. As described above, the cord holding elastic roller 92 retreats so as to be pulled in when the conveyed object passes, and the shaft support member 96 also retreats so as to be retracted when the conveyed object passes.

The string cutting means 100 includes a string sending means 90.
And is provided in a box 101 fixed to the device frame 31. That is, as shown in FIG.
Is formed, and the movable blade 104 of the scissors 102 is connected to a link mechanism 110 incorporated in the box 101. The link mechanism 110, as also shown in FIG.
It is composed of a link 111 for attaching the movable blade 104 and three other links 112, 113, 114. That is, the link 111 to which the movable blade 104 is attached is swingable about the support shaft 115 fixed to the box 101 at the intermediate portion thereof, and the link 111 is connected to the rear end of the link 111 via the connection shaft 116. One end is connected. The other end of the link 112 is connected to one end of two links 113 and 114 via a connecting shaft 117. The other end of the link 113 is swingable about a support shaft 118 fixed to the front end of the box 101, and the other end of the link 114 is connected to the rear moving body 1.
It is connected by a connecting shaft 119 to a protruding portion 121 rising upward from 20. Thus, the link mechanism 110 is configured in a toggle manner.

Then, the moving body 120 is
The feed screw shaft 123 is screwed onto a screw portion of a feed screw shaft 123 which is rotatably mounted in the inside thereof.
24 are provided. A bracket 131 is fixed to one side surface of the box 101. As shown in FIGS.
32, and two lower and upper power transmission shafts 133, 134 are provided below it. Motor 132
Is transmitted to the upper and lower power transmission shafts 133 and 134 by the gears 135, 136 and 137, respectively. Thus, the upper and lower power transmission shafts 133 and 134 rotate in directions opposite to each other. The upper and lower power transmission shafts 133, 134
Of the feed screw shaft 123,
Pulleys 126 and 127 on which a timing belt 125 is mounted.

Further, the upper and lower power transmission shafts 133, 134
Electromagnetic clutches 138 and 139 are provided on the front side of the toothed pulleys 126 and 127. Therefore, this 2
When one of the electromagnetic clutches 138 and 139 is excited and the other is demagnetized, one of the upper and lower power transmission shafts 133 and 134 that rotate in opposite directions rotates from the toothed pulleys 126 and 127 respectively. Timing belt 12
5, and is transmitted to the feed screw shaft 123 through the toothed pulley 124. That is, for example, the upper electromagnetic clutch 138
To the connected state while the lower electromagnetic clutch 1
When the power transmission shaft 39 is demagnetized to be in the cutoff state, the upper power transmission shaft 1
If the rotation of the motor 33 is transmitted to the feed screw shaft 123 and, conversely, the lower electromagnetic clutch 139 is excited to be in the connected state and the upper electromagnetic clutch 138 is demagnetized to be in the disconnected state, the lower power The rotation of the transmission shaft 134 is
3 is transmitted. As a result, the feed screw shaft 123 performs forward rotation and reverse rotation, and the moving body 120 screwed on the screw portion of the feed screw shaft 123 performs forward and backward movements, and in conjunction with this, moves via the link mechanism 110. The blade 104 swings. In particular, the movable blade 104 performs an operation of moving up the stationary blade 103 to close the scissors 102 and then descending and opening the scissors 102 again in the forward stroke of the moving body 120.

Next, the cord 3 connected to the transport device having the above configuration
Will be described. First, string 3 is # 72 ×
2, a string roll 4 in which the string 3 is wound into a cylindrical shape.
Is fixed in place by inserting a drum shaft 41a into the hollow portion thereof, supporting the drum shaft 41a with roll supports 42, 42, and fixing with a thumb screw. The string 3 pulled down from the string roll 4 set in this way is
Hook the V-groove of the string guide pulley 54 of the string loosening means 50 from the near side, turn it around, and pass it through the hole of the upper string guide 33 from below. Then, the string 3 drawn upward from the hole of the string guide groove 33 is passed from below through a circular hole h formed by the string untangling elastic roller 61 and the string untangling roller 62 of the upper string untangling means 60. Then, the string 3 pulled out from the circular hole h is wrapped around the right string guide section 34 and then pulled out toward the string feeding means 40 on the upper left side.

In the string feeding means 40, the string 3 is
First, the hook is hooked on the outer periphery of the drum 41 from the left side after being hooked on the V groove of the innermost thread guide pulley 44, and then is hooked on the outer wall of the drum guide pulley 44 from the left side. Hung on the outer circumference, then on the V groove of the second thread guide pulley 44 from the front, and on the outer circumference of the drum 41 from the left side.
And then pull it down. And drum 4
The string 3 pulled out from below 1 is hooked on the V groove of the string guide pulley 76 of the string tension applying means 70 from the right side, and is pulled out from the left side toward the upper string tension adjusting means 80. The string 3 pulled upward is hung from the near side on the idler pulley 37 below the bracket 36, hung from the back side between the tension discs 82, 82 in the middle part of the bracket 36, and frontward on the idler pulley 37 above the bracket 36. Hang from the side and pull out the other side. The string 3 pulled out on the other side is hung from the left side in the V-groove of the thread guide pulley 38, and then is drawn along the string guide groove 24 of the needle plate 23 and then toward the right-side string feeding means 90. It is sandwiched between the string pulling elastic roller 91 and the string pressing elastic roller 92.

The supply of the string 3 from the string roll 4 to the needle plate 23 is performed by sandwiching the string 3 between the string extracting elastic roller 91 and the string pressing elastic roller 92 while the string extracting elastic roller 91 is interposed therebetween. This is performed by driving the motor to rotate in the string pull-out direction. In this state, the shaft support member 96 is held by the triangular cam 192 so that the cord holding elastic roller 92 is at the forward position. Also,
The string 3 is sandwiched between the string pulling elastic roller 91 and the string pressing elastic roller 92 by the force of the pressing coil spring 97 for adjusting the pressing pressure.

Here, as shown in FIG. 21, the sewing form of the string 3 by the stitch forming means 20 is, for example, in the case of the string 3 having a length of about 4 m, a hanging allowance is provided at both ends and an empty ring is provided before and after the leaf cigarette. If the sewing is to be performed, after the lifting allowance is conveyed, the front empty stitching is performed, and then the tobacco leaf part is sewn, and then the rear empty stitching and the lifting allowance are conveyed. Thereafter, the string 3 is cut by the string cutting means 100.

Next, the automatic operation performed by the transfer device will be described. First, the transported material by the transporting means 10, that is, the leaf tobacco 1 sandwiched between the pair of endless belts 11,11.
Is supplied to the seam forming means 20 by the string supplying means 30 at the same time as the transfer of the string 3 to the seam forming means 20 is started. That is, the pair of endless belts 1 of the conveying means 10
In synchronization with the transport speed of the leaf tobacco 1 sandwiched between 1, 1 and 11, the string pull-out elastic roller 91 of the string feeding means 90 is driven by a motor to drive the string through a chain sprocket mechanism (see sprocket 14). And the string 3 is pulled out while being sandwiched between the string pulling elastic roller 91 and the string pressing elastic roller 92.
Then, after the above-described hanging allowance conveyance and front empty stitching conveyance, and the tobacco petiole stitching is started, the string pressing elastic roller 92
Is transmitted to the triangular cam 192 by driving the motor 195, and is retracted by the eccentricity of the triangular cam 192. The motor 195 stops at the retracted position of the string pressing elastic roller 92. This allows the passage of leaf tobacco. At this time, the string 3 is floating inside, but since the leaf tobacco is sewn into the string 3 by the seam forming means 20 and the string 3 is conveyed together with the leaf tobacco conveyed by the conveying means 10, The string 3 changes to a movement to be pulled out according to the transport speed of the plant sewing.

When the tobacco leaf stitching is completed and the back empty sewing is started, the motor 195 is driven to rotate the triangular cam 192 to return the string pressing elastic roller 92 to the forward position, and the motor 195 is stopped. Therefore, in the subsequent hanging margin conveyance, the string 3 is pulled out while being sandwiched again between the string pulling elastic roller 91 and the string pressing elastic roller 92. Then, after the transport of the hanging allowance, the string 3 is cut by the string cutting means 100.

As for the details of the supply of the string, first, in the string feeding means 40, the string 3 is released from the string roll 4 supported by the roll supports 42, 42 on the drum shaft 41a. The rotation is performed by the free rotation of the string roll 4 due to the applied tension and the rotation of the drum shaft 41 a by the motor 45. That is, the rotation of the roll support 42 by the motor 45 is transmitted from the motor 45 to the drum shaft 41 a via the chain sprocket mechanism 46 so as to rotate in the unwinding direction of the string roll 4. The roll support 42 is pushed via the mechanism section 43 to perform auxiliary rotation. Here, the rotation of the drum 41 rotates slightly earlier than the transport speed of the leaf tobacco section with respect to the speed at which the string 3 is pulled out.

In the string loosening means 50, the string 3 is loosened before winding around the drum 41.
The thread guide pulley 54 is provided with a swing arm 53 that always rotates freely.
Swings with an appropriate own weight, and the string 3 is stretched. Then, in the string entanglement means 60, the string entanglement elastic roller 61 and the string entanglement roller 62 rotate in the opposite direction to the cord feed in conjunction with the rotation of the drum 41. In the circular hole h, which is formed between the elastic member 61 for untangling the string and the roller 62 for untangling the string and is slightly smaller than the thickness of the string 3, for example, the string 3
Is about to pass, the string entanglement elastic roller 61 and the string entanglement roller 6 rotating in the opposite direction to the string feed
By reverse rotation of the string 3 in the traveling direction of the string 2, the entangled portion of the string 3 is kicked back in front of the circular hole h to loosen it, and then the string 3 passes through the circular hole h. In the case of a string entangled in strength, the string entanglement roller 62 is pushed back by virtue of the tension coil spring 64, so that supply becomes impossible and all operations are stopped.

In the string feeding means 40, the winding of the string 3 around the drum 41 is for surely supplying and detecting a series of string lengths, and the drum 41 and four thread guide pulleys are longer than the required string length. 44,44,44,44. Specifically, a detector (not shown) is attached at a position where the string 3 has a required length, and the end of the string 3 is detected. As described above, by detecting the end of the string 3, the entire transport device can stop after finishing a series of steps.

In the string tension adjusting means 80, when the string 3 is passed between the tension disks 82, a constant tension is always maintained by the pressing force of the extension coil spring 85 even if the string 3 has a variation in thickness or flatness. ing. The tension of this string 3 is
Although appropriate tension adjustment is performed by the sewing condition of the sewing machine, the strength of the tension coil spring 85 can be adjusted by the string tension screw 84.

In the string tension applying means 70, between the drum 41 of the string feeding means 40 and the tension disks 82, 82 of the string tension adjusting means 80, the string guiding pulley 76 on the slide plate 75 controls the sewing speed of the string 3. On the other hand, the same string tension is always applied to prevent the string 3 from being loosened, twisted and twisted. The string guide pulley 76 on the slide plate 75 has its own weight lower than the tension pressure between the drum 41 and the tension disks 82, 82, and rises when the string 3 is fed out by sewing. There is a detector (not shown) near the rising end, and when this is detected, the motor 45 of the drum shaft 41a rotates and the cord 3 is fed out. In this case, string 3
Is rotated slightly earlier than the transport speed of the cutter, so that the thread guide pulley 76 descends with the slack amount of the string 3. A detector (not shown) is provided near the lower end of the drum shaft 41a.
Motor 45 stops. In this way, while performing sewing, the raising and lowering operation of the thread guide pulley 76 is repeatedly performed,
The tension of the string 3 is obtained.

In the stitch forming means 20, the needle plate 23 following the string guide pulley 38 has a semicircular string guide groove 24 slightly smaller than the diameter of the string 3, so that the string guide groove 24 Pass through the needle drop center in the needle hole 25 formed by the elongated hole. Therefore, the seam does not come off from the string 3. For reference, specific operation timing is shown in FIG.

As described above, according to the transfer apparatus of the embodiment, the following advantages can be obtained. (1) A pair of endless belts (V-belts) 1 of the conveying means 10
1, 1 and 11, the leaf tobacco 1 is transported in a suspended state by being held by the petiole,
In order to sew the petiole of the leaf tobacco 1 to the string 3 by the sewing needle 22, the direction (angle) of the leaf tobacco 1 suspended from the string 3 supplied by the string feeding means 90 can be changed. (2) Since the supply of the string 3 of a predetermined length can be reliably performed by the drum 41 of the string feeding means 40 and the four thread guide pulleys 44, 44, 44, 44, the supply of the string 3 is performed during the sewing of the leaf tobacco. It can be supplied to the end without interruption.

(3) The conveying means 10 feeds the tobacco 1 with a pair of endless belts 11 by a V-belt at a conveying speed synchronized with the feeding movement speed of the sewing needle 22 across the petiole. In synchronization with the supply of the string 3 by the means 30, the leaf tobacco 1 can be reliably transported to the needle drop position. (4) An appropriate tension is applied to the string 3 by the string guide pulley 76 on the slide plate 75 of the string tension applying means 70 and the tension disks 82 and 28 of the string tension adjusting means 80, and the string is supplied along the supply path. 3 can be prevented, and the tobacco 1 can be hung on the string 3 at regular intervals.

(5) The slack of the supplied string 3 can be removed by the thread guide pulley 54 provided on the freely rotating swing arm 53 of the string slack removing means 50. (6) The string entanglement roller 60 on the drive side of the string entanglement means 60 and the string entanglement roller 62 on the driven side
The entanglement of the supplied string 3 can be released. (7) The scissors 102 (the fixed blade 103 and the movable blade 104) are closed and then reopened by the moving body 120 and the toggle link mechanism 110 of the string cutting means 100.
The operation of the scissors can be made smoother and faster.

In the above-described embodiment, the petiole of the leaf tobacco 1 is sewn to the string 3. And may be held between them. That is, the position and size of the tobacco petiole corresponding to the position and size of the tobacco petiole in advance, or the position and size of the tobacco petiole are detected using a detector,
In the seam forming means 20, the leaf cigarette 1
Needle drop before and after the petiole. In this way, by letting the needle drop into the string 3 before and after the petiole of the leaf tobacco 1, the petiole of the leaf tobacco 1 can be sandwiched and held between the cord 3 and the single thread ring seam. Since the needle drop does not occur, the leaf tobacco 1 can be hung on the string 3 and held without damaging the petiole.

<Other Embodiments> FIGS. 23 and 24 are diagrams respectively showing the sewing mode and the operation timing of the string in the case where the conveyed object is a plant 1 like a skull. That is, in this embodiment, as a conveyed object, as shown in the figure, the upper end of the stem of the plant 1 like a skull is sewn to the string 3 by the above-described conveying device. In addition, even in the case of such a plant 1, similarly to the above, the upper end of the stem of the plant 1 is held between the string 3 and the single-threaded ring stitch without holding the needle at the upper end of the stem. Is also good.

Next, a modified example of each section will be described. <Modification> FIG. 25 shows a modification in which the string roll 4 is placed vertically, and as shown in FIG.
The string roll 4 is placed vertically on the upper side, and the string 3 pulled out from the inside or outside of the string roll 4 in the vertical state is passed through a hole of the thread guide portion 33 and the string untangling elastic roller of the string untangling means 60 is provided. You may make it draw out from between 61 and the string entanglement roller 62.

FIG. 26 shows a modification in which the string roll 4 is placed horizontally. As shown in FIGS. 26 (a) and 26 (b), the roll support rod 47 is connected to a pair of support plates 48, 48.
The pair of support rollers 49, 49 are rotatably supported by a pair of support rollers 49, 49, and the roll support rod 47 is inserted into the string roll 4 to support the support rollers 49, 49 on the pair of support plates 48, 48.
Place on 49,49. In this manner, the string 3 pulled out from the string roll 4 in the horizontal state may be passed through the hole of the thread guide 33.

FIG. 27 shows a modification of the string entanglement means 60. As shown in FIG.
2 is fixed with a set screw 163 so that such a rigid plate 16
The string 3 may be passed between the first spring 1 and the leaf spring 162. In this case, the string 3 is untangled by pressing the leaf spring 162 sandwiching the string 3 against the rigid plate 161.

FIG. 28 shows a modification of the string feeding means 40. As shown in FIG. 28 (a), for example, a thread guide pulley 142 with V-grooves is provided at the four corners of a square support plate 141. , 142, 142, 142,
The yarn guide pulleys 142, 142, 142, 1 at the four corners
As shown in FIG. 28 (b), each of the reference numerals 42 is a front and rear pair. Then, the yarn guide pulley 14 at one corner thereof
2 and 142 are directly connected to the motor 143.
The string holding pulley 144 is pressed by one of the compression coil springs 145 against one of the thread guide pulleys 142 directly connected to the pulley 142. Such two front and rear yarn guide pulleys 14
., A string 3 may be hung on and extended a predetermined length.

FIG. 29 shows a modification of the string tension applying means 70, in which the string guide pulley 76 is supported by a freely rotatable swing arm 77. The string guide pulley 76 may be attached to such a freely rotatable swing arm 77, and tension may be applied to the string 3 by the weight of the string guide pulley 76 and the swing arm 77.

FIG. 30 shows a modification of the cord holding elastic roller 92 of the cord feeding means 90. As shown in FIG.
The air cylinder unit 196 is provided with a shaft support 94 of the string holding elastic roller 92. As described above, the air cylinder unit 196 may control the forward / backward movement of the string holding elastic roller 92. The drive source is not limited to the air cylinder unit 196, and another drive source may be used.

FIG. 31 shows a modified example (1) of the drive unit of the string cutting means 100. As shown in FIG.
The feed screw shaft 123 into which 0 is screwed is directly connected to a stepping motor or a servo motor 128. As described above, the feed screw shaft 123 may be rotated by the drive of the directly connected stepping motor or servo motor 128 to move the moving body 120 forward and backward.

FIG. 32 shows a modified example (2) of the driving section of the string cutting means 100. As shown in the figure, a moving body 220 also serving as a connecting bracket is provided at the front end of a slide bar 221. Rack 22 formed below slide bar 221
2, the gear 224 of the geared motor 223 is meshed. As described above, the moving body 220 provided on the slide rod 221 may be moved forward and backward by engaging the gear 224 and the track 222 by driving the geared motor 223.

In the above embodiment, the transport device is used to knit a petiole portion of "leaf tobacco" or an upper end portion of a plant such as "dokudami" on a string. However, the present invention is not limited to this. Instead, it may be a transport device for knitting a transported object such as other plants or seafood such as squid on a string. In addition, the shape and size of each part are also arbitrary, and it goes without saying that the specific detailed structure and the like can be appropriately changed.

[0057]

As described above, according to the transfer apparatus of the first aspect of the present invention, the conveyed object is conveyed in one direction while sandwiching the vicinity of the upper end, and is moved along the movement route near the upper end of the conveyed object. A string was supplied with a predetermined tension applied, and a single thread ring stitch was formed by a needle feeding movement and a reciprocating movement while guiding the string, and then the string was cut, and in particular, the conveyed object was suspended. Since the sheet is conveyed in the state and the upper end is sewn to the string, the direction (angle) of the conveyed article suspended on the string can be changed.

According to the transport device of the second aspect of the invention, the transported object is transported at a transport speed synchronized with the speed of the needle movement. There is an advantage that the string and the conveyed object can be reliably conveyed to the falling position.

According to the transfer device of the third aspect of the present invention, the string which has been fed out by a predetermined length and given a predetermined tension is fed to the needle position. It is possible to stably supply a predetermined length with a constant tension at all times, to prevent the string from being entangled, and to obtain an advantage that the conveyed object can be hung at a constant interval on the string.

According to the transfer device of the fourth aspect of the present invention, the scissors are closed and then reopened via the link mechanism by the linear one-way movement or the reverse movement of the moving body. In addition to the effect obtained by the first aspect of the invention, there is obtained an advantage that the operation of the scissors can be performed smoothly and at high speed.

According to the fifth aspect of the present invention, a conveyed object is conveyed in one direction while sandwiching the vicinity of the upper end, and a predetermined tension is applied along a moving path near the upper end of the conveyed object. Supply the string in a state where it has been formed, and form a single thread ring seam on the string by the needle's feed movement and reciprocating movement while guiding the string,
In particular, in order to transport the object in a suspended state while holding the upper end between the needle-dropping single thread ring stitch thread and the string before and after the upper end of the object, the direction (angle) of the object to be hung on the string is changed. In addition to being changeable, the upper end of the conveyed object is sandwiched between the string and the single-thread ring stitch thread so that the needle does not drop onto the upper end of the conveyed object, so that the conveyed object can be held on the string without being damaged.

According to the transport device of the sixth aspect of the present invention, the leaf tobacco can be sewn to the string in a suspended state as in the first aspect of the invention, or As in the second aspect of the present invention, the needle can be dropped before and after the petiole, and can be conveyed in a suspended state while holding the petiole sandwiched and held by the string and the single thread stitch thread.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a schematic configuration of a transport device as an example to which the present invention is applied.

FIG. 2 is a front view showing a specific configuration of a string supply unit.

FIG. 3 is a side view of the string supply means.

FIG. 4 is an enlarged perspective view of a needle plate.

FIG. 5 is an enlarged perspective view of a drum unit and a drive unit that constitute the string feeding unit.

FIG. 6 is a longitudinal sectional view of a guide pulley portion above a drum portion.

FIG. 7 is an enlarged perspective view of a string loosening means.

FIG. 8 is an enlarged perspective view of a string entanglement means.

FIG. 9 is an enlarged plan view showing a string passing hole between untangling rollers.

FIG. 10 is a partially broken plan view showing a power transmission mechanism of the string entanglement means.

11 (a) is a plan view, and FIG. 11 (b) is a front view, showing a string tension applying means.

12A and 12B show a specific configuration of the string tension adjusting means, wherein FIG. 12A is a longitudinal sectional view and FIG. 12B is a front view.

FIG. 13 is an exploded perspective view of components constituting the string tension adjusting means.

FIG. 14 shows a specific configuration of a string sending unit.
FIG. 4 is a longitudinal sectional view illustrating a pull-out roller and a driving unit.

FIG. 15 is a front view showing a pressing roller and a supporting device thereof.

FIG. 16 is a partially cutaway side view showing the pressing roller and its supporting device.

FIG. 17 is a perspective view showing a schematic configuration of a string cutting means.

FIG. 18 is a partially cutaway side view showing a power transmission mechanism from the feed screw portion to the scissors portion.

FIG. 19 is a side view showing a drive unit of the feed screw unit.

FIG. 20 is a side view of FIG. 19;

FIG. 21 is a view showing a sewing mode of a string in a case where the transported object is a leaf tobacco.

FIG. 22 is a diagram showing the operation timing when a conveyed object is a leaf tobacco.

FIG. 23 is a diagram showing a string sewing mode in a case where a conveyed object is a plant like a skull.

FIG. 24 is a diagram showing operation timings when a conveyed object is a plant like a skull.

FIG. 25 is a perspective view showing a modification in which the string roll is placed vertically.

26A and 26B show a modification in which the string roll is placed horizontally, wherein FIG. 26A is a perspective view and FIG. 26B is an end view.

FIG. 27 is a side view showing a modification of the string entanglement means.

FIG. 28 shows a modification of the string feeding means.
(A) is a plan view and (b) is a side view.

FIG. 29 is a front view showing a modification of the string tension applying means.

FIG. 30 is a perspective view showing a modification of the pressing roller of the cord feeding means.

FIG. 31 is a perspective view showing a modified example (1) of the drive section of the string cutting means.

FIG. 32 is a perspective view showing a modified example (2) of the drive section of the string cutting means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyed thing (leaf tobacco, plant) 3 String 4 String roll 10 Conveying means 11 Endless belt 12 Pulley 20 Stitch formation means 22 Needle 23 Needle plate 24 String guide groove 25 Needle hole 30 String supply means 31 Device frame 32 Base plate 33 String guide 34 String Guide 35 Mounting Boss 36 Bracket 37 Idler Pulley 38 String Guide Pulley 39 Roll Placement Plate 40 String Feeding Means 41 Drum 42 Roll Support 43 Ratchet Mechanism 44 String Guide Pulley 45 Motor 46 Chain Sprocket Mechanism 47 Roll Support Rod 48 Support Plate 49 Support Roller 50 String Loosening Means 53 Oscillating Arm 54 String Guide Pulley 55 String Guide Plate 60 String Entangling Means 61 String Entangling Elastic Roller 62 String Entangling Roller 63 Rocking Arm 64 Tension Coil Spring 65 Elastic Roller 66 Imming belt pulley device 67 Bearing unit 68 Slide unit 69 Tension coil spring 70 String tension applying means 71 Rail plate 72 Guide rail 73 Detachment stop plate 74 Roller 75 Slide plate 76 Thread guide pulley 77 Swing arm 80 String tension adjusting means 81 Main body 82 Tension Disc 83 String tension bush 84 String tension screw 85 Tension coil spring 86 Spring ring 87 Tension adjusting nut member 88 Nut 90 String feeding means 91 String pullout elastic roller 92 String press elastic roller 93 Roller shaft 94 Roller support 95 Support shaft 96 Shaft Supporting member 97 Compression coil spring 99 Cam abutment plate 100 String cutting means 102 Scissors 110 Link mechanism 120 Moving body 123 Feed screw shaft 124, 126, 127 Pulley 125 Timing belt 128 Stepping Motor or servo motor 132 Motor 133, 134 Power transmission shaft 135, 136, 137 Gear 138, 139 Electromagnetic clutch 142 String guide pulley 143 Motor 144 String holding pulley 161 Hard plate 162 Plate spring 191 Guide rail 192 Triangular cam 193 Cam shaft 194 Timing belt pulley mechanism 195 Motor 196 Air cylinder unit 220 Moving body 221 Slide bar 222 Rack 223 Geared motor 224 Gear

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B150 AA04 BA00 BB07 CE01 CE27 DE04 EH01 EH06 EH11 FH01 FH06 JA28 JA33 3L113 AA08 AC19 AC31 AC35 AC42 AC45 AC46 AC54 AC57 AC63 AC76 AC90 BA17 BA21 CA06 DA07 DA24 4B022 LS04 A4A

Claims (6)

[Claims] 1. A conveying means for sandwiching the vicinity of the upper end of a conveyed object to be conveyed in a suspended state and enabling conveyance in one direction, and a predetermined path along a moving path near the upper end of the conveyed object by the conveying means. A string supply means for supplying a string in a state where tension is applied; a string guide groove for guiding the string supplied by the string supply means along the movement path; and a movement path for the string guide groove. A stitch forming means having a needle which is arranged to face the moving path and reciprocates in a direction crossing the moving path along with the moving path so as to form a single thread stitch on the string; and A string cutting unit that cuts the string after the string after the formation of the single thread ring stitch has passed a predetermined length, on a downstream side of the movement path from the forming unit, and a state in which the transported object is suspended. At the upper end of the string Sewn. 2. The method according to claim 1, wherein the conveying unit includes a pair of endless belts that hold the conveyed object across an upper end thereof, and convey the conveyed object at a conveying speed synchronized with the feeding movement speed of the needle. The transfer device according to claim 1, wherein 3. The string supply means includes: a string feeding means for feeding the string by a predetermined length; a tension applying means for applying a predetermined tension to the string fed by the string feeding means; and a predetermined tension by the tension applying means. 2. The transport device according to claim 1, further comprising: a string feeding unit configured to send the string provided with the string to a position of the needle. 3. 4. A scissor for cutting the string by opening / closing operation, a moving body capable of linearly reciprocating, and closing the scissor by one-way movement or reverse movement of the moving body. The transport device according to claim 1, further comprising: a link mechanism that operates to open again from (a). 5. A transporting means for sandwiching the vicinity of the upper end of a conveyed object to be conveyed in a suspended state and enabling conveyance in one direction, and a predetermined path along a movement path near the upper end of the conveyed object by the conveying means. A string supply means for supplying a string in a state where tension is applied; a string guide groove for guiding the string supplied by the string supply means along the movement path; and a movement path for the string guide groove. A stitch forming means having a needle that forms a single thread stitch on the string by reciprocating in a direction intersecting the movement path with a feeding movement along the movement path. Wherein the needles drop before and after the upper end of the conveyed object, and convey the conveyed object in a suspended state while holding the upper end of the conveyed object by the string and the single-thread ring stitch thread, A conveying device characterized by the above-mentioned. 6. The conveyed article is a leaf tobacco, and the leaf tobacco is sewn with a petiole portion to the string in a suspended state, or a needle drops before and after the petiole portion, and the leaf tobacco is attached to the leaf tobacco. The transport device according to claim 1, wherein the transport device is transported in a suspended state while holding and holding the petiole portion with a single thread stitch thread.