WO2009141867A1

WO2009141867A1 - Method of threading

Info

Publication number: WO2009141867A1
Application number: PCT/JP2008/059252
Authority: WO
Inventors: 義之辻; 雅弘砂田; 博史山口
Original assignee: 椿本興業株式会社; 株式会社ファブリカトヤマ
Priority date: 2008-05-20
Filing date: 2008-05-20
Publication date: 2009-11-26

Abstract

A continuous pattern of thread material (3) is formed by rotating a threader (37) on the circumferential surface of a rotary carrier member (10) having threading pins (11) projecting therefrom. In that instance, a threader retaining bracket (38) provided with the threader (37) is driven by two drive crank means (32a,32b), and servomotors (33Ma,33Mb) are used as respective drive sources for the drive crank means (32a,32b). Accordingly, in the production of a sheet (5) for extraction bag resulting from arranging of a long thread material in a specified rotary pattern, there can be attained not only facilitation of any regulation and changingof the rotary pattern of the thread material (3) but also increasing of the production speed.

Description

Yarn hanging method

The present invention relates to a yarn hooking device used for manufacturing a sheet for an extraction bag and a machine for manufacturing a sheet for an extraction bag using the yarn hooking device.

As a tea bag for tea, green tea, herbs, etc., as a bag for extracting dried stock such as dried and dried bonito, a water-permeable filterable sheet such as non-woven fabric is formed into a flat bag shape, tetrahedron shape bag body, etc. What is used is filled with extraction materials such as tea leaves and attached with a hanging thread with a tag on the outer surface.

As a sheet for an extraction bag used for manufacturing such an extraction bag, one in which a hanging thread with a tag for one extraction bag is arranged at a predetermined interval in the longitudinal direction of a belt-like water-permeable filterable sheet is known. Although (Patent Document 1), as to enable the extraction bag sheet to be manufactured with higher productivity, the tags are arranged in the longitudinal direction of the sheet at predetermined intervals on the belt-like water-permeable filterable sheet, A long thread material arranged in a specific rotation pattern so as to be placed on each tag is known (Patent Document 2).
JP 10-157709 A Special Table 2001-519729

However, the conventional method for manufacturing a manufacturing sheet for an extraction bag in which long thread materials are arranged in a specific rotation pattern is such that a pin protrudes from a rotating carrier and the pin is moved on the peripheral surface of the rotating carrier. The thread guide is moved by the crank mechanism connected to the rotation drive shaft by tensioning the thread material, and the thread is hung on the pin protruding from the rotation carrier. It is not easy to adjust the rotation pattern of the thread material according to the length required for the thread. Furthermore, it is not easy to increase the production rate of the extraction bag sheet.

On the other hand, the present inventor facilitates adjustment and change of the thread material rotation pattern and increases the production speed when manufacturing a sheet for an extraction bag in which long thread material is arranged in a specific rotation pattern. The purpose is to be able to.

In producing an extraction bag sheet in which long yarn materials are arranged in a specific rotation pattern, the present inventor uses two drive crank mechanisms that respectively drive the threaders for drawing the long yarn materials by servo motors. It has been found that the above objective can be achieved by moving.

That is, the present invention is a yarn hooking method for forming a continuous pattern of the thread material in the sheet for the extraction bag by rotating the threader on the peripheral surface of the rotating carrier from which the thread hooking pin protrudes, A threading method is provided, wherein the threading is driven by two drive crank mechanisms, and a servo motor is used as a drive source of each drive crank mechanism.

In addition, the present invention provides a method for producing an extraction bag sheet using this yarn hooking method, wherein the tags bonded to the thread material are arranged at predetermined intervals in the longitudinal direction of the water-permeable filterable sheet. A manufacturing method of
(1) A step of carrying the tag at a predetermined interval on the rotary carrier
(2) Threading step of forming a continuous pattern of thread material by rotating the threader on the peripheral surface of the rotating carrier from which the threading pin protrudes
(3) Bonding process of thread material and tag
(4) A step of supplying a water-permeable filterable sheet onto the tag and the thread material on the rotating carrier.
(5) having a step of adhering the tag or thread material and the water-permeable filterable sheet on the rotation carrier, and (2) in the threading step, the threading is driven by two drive crank mechanisms, and each drive crank Provided is a method for producing a sheet for an extraction bag, wherein a servo motor is used as each drive source of the mechanism.

Furthermore, the present invention is an apparatus for carrying out the above-described yarn hooking method, in which a threading device is continuously rotated on a peripheral surface of a rotating carrier from which a yarn hooking pin protrudes, whereby a yarn material in an extraction bag sheet is continuously formed. A yarn hooking device for forming a pattern,
Provided is a yarn hooking device having two drive crank mechanisms for driving threading, and the drive source of each drive crank mechanism is a servo motor.

Further, as a machine for carrying out the above-described method for producing an extraction bag sheet, an extraction bag sheet producing machine in which tags bonded to a thread material are arranged at predetermined intervals in the longitudinal direction of the water-permeable filterable sheet. And
(1) Tag supply device for supporting a tag on a rotating carrier at predetermined intervals
(2) A yarn hooking device that forms a continuous pattern of yarn material by rotating the threader on the peripheral surface of the rotating carrier from which the yarn hooking pins protrude.
(3) Sealing device for bonding the thread material and tag
(4) Sheet supply device for supplying a water-permeable filterable sheet onto the tag and thread material on the rotating carrier
(5) having a sealing device for adhering the tag or thread material and the water-permeable filterable sheet on the rotating carrier; (2) the threading device has two drive crank mechanisms for driving the threading; Provided is a machine for producing a sheet for an extraction bag, wherein the drive source of each drive crank mechanism is a servo motor.

According to the yarn hooking method or the yarn hooking device of the present invention, the threader is moved by the two drive crank mechanisms, and each drive crank mechanism is driven by the servo motor, so that the length of the crank arm or the link is changed. Without any change, the threading path can be changed only by controlling the two servo motors.

Therefore, by this threading drive mechanism, the rotation pattern of the thread material in the extraction bag sheet can be adjusted according to the width of the water-permeable filterable sheet, the length required for the hanging thread, etc. Furthermore, it is possible to change to a different convolution pattern.

In addition, the yarn hooking device according to the present invention can be configured more compactly than a normal device having a table configuration including a ball screw arranged on two XY orthogonal axes and a guide unit that slides the ball screw. Therefore, the production speed of the extraction bag sheet can be increased.

Hereinafter, the present invention will be specifically described with reference to the drawings. In each figure, the same numerals indicate the same or equivalent components.

FIG. 1 is a perspective view (a) and a top view (b) of an embodiment of a yarn hooking device for carrying out the yarn hooking method of the present invention, and FIG. 2 shows an extraction bag sheet incorporating the yarn hooking device. It is a block diagram of a manufacturing machine.

The extraction bag sheet manufacturing machine 1 generally includes a rotation carrier 10 that rotates in the direction of an arrow, a tag supply device 20 that supplies a tag 2 to the circumferential surface of the rotation carrier 10 at a predetermined interval, and a tag 2 at a predetermined interval. The yarn hooking device 30 of the present embodiment for forming a continuous pattern of the thread material 3 on the circumferential surface of the disposed rotation carrier 10, and the water-permeable filterable sheet on the tag 2 and the thread material 3 on the rotation carrier 10 4, a sheet supply device 50, a bonding device between the tag 2 and the thread material 3, a bonding device between the tag 2 and the water-permeable filter sheet 4, or a sealing device for bonding the thread material 3 and the water-permeable filter sheet 4. It consists of 60.

Further, downstream of the extraction bag sheet manufacturing machine 1, the extraction bag sheet 5 manufactured by the extraction bag sheet manufacturing machine 1 is used to make a bag in a pyramid shape, and the contents such as tea leaves are contained therein. A filling and packaging machine 70 for filling the product to produce the extraction bag 6 is provided.

Here, the yarn hooking device 30 according to the present embodiment includes a first drive crank mechanism 32a and a second drive crank mechanism 32b connected in a substantially orthogonal direction by a joint portion 31. These drive crank mechanisms 32a and 32b include crank arms 34a and 34b driven by servo motors 33Ma and 33Mb, respectively, and links 35a and 35b connected to the crank arms 34a and 34b. The first drive crank mechanism 32a and The joint portion 31 of the second drive crank mechanism 32b connects the intermediate portion of the link 35a of the first drive crank mechanism 32a and the tip portion of the link 35b of the second drive crank mechanism 32b. Further, a threading holding bracket 38 provided with a ring-shaped thread guide 36 and a threading 37 is provided at the tip of the link 35a of the first drive crank mechanism 32a.

In this way, when the joint portion 31 of the first drive crank mechanism 32a and the second drive crank mechanism 32b is provided in the middle portion of the link 35a of the first drive crank mechanism 32a, the joint portion 31 and the crank arm 34b It is possible to prevent the sliding portion serving as a dust generation source such as a joint portion with the link 35b from being positioned on the peripheral surface of the rotation carrier 10. Further, since the threading holding bracket 38 is only positioned on the peripheral surface of the rotary carrier 10 and the link is located outside the peripheral surface, the thread-passing sheet or the water-permeable filterable sheet is placed on the rotary carrier 10. It is possible to eliminate as much as possible any obstacles during supply.

Furthermore, according to the yarn hooking device 30, the threading 37 is driven by the two drive crank mechanisms 32a and 32b, and the servo motors 33Ma and 33Mb are used as the drive sources of the drive crank mechanisms 32a and 32b, respectively. By controlling the servo motors 33Ma and 33Mb, it is possible to move the threader 37 along a track necessary for threading onto the threading pin 11 protruding from the peripheral surface of the rotary carrier 10.

Specifically, for example, as shown in FIG. 3, when the two tags 2 are arranged at predetermined intervals so as to be close to the peripheral surface of the rotation carrier 10 and are fixed by suction, In order to form the material 3 in a continuous rotation pattern extending in the axial direction of the rotary carrier on each tag 2, as shown in FIG. Of the rotary carrier 10 on the both sides (the upstream side and the downstream side in the rotational direction of the rotary carrier 10) and projecting to a position near one peripheral edge 10 a of the rotary carrier 10. Further, the thread hooking pins 11c and 11d are projected, and the threading 37 at the tip of the threading holding bracket 38 is arranged around the pins 11 (11a, 11b, 11c and 11d) with a predetermined radius (for example, 6 to 6). 10mm), and the pin 11 and pin 11 during may be moving the threading device 30 to take a trajectory La traveling on tangent of the aforementioned circular path. 3 and 4, the broken line indicates the water-permeable filter sheet 4 to be supplied to the peripheral surface of the rotary carrier 10 later, and the dotted line indicates the region of one extraction bag in the water-permeable filter sheet 4. Indicates a separator. Further, in FIG. 4, the continuous rotation pattern of the thin lines corresponds to the continuous rotation pattern of FIG.

The track La in FIG. 4 is a track with respect to the pin 11 moving in the direction of the arrow by the rotation of the rotary carrier 10, so that the threader 37 draws the track Lb shown in FIG. 5 for the fixed coordinates. The yarn hooking device 30 is moved to 4 and 5 indicate corresponding points on these trajectories La and Lb.

Such movement of the threader 37 can be obtained by causing the servo motors 33Ma and 33Mb to reciprocate and controlling the rotation speed and rotation time thereof. In this case, the range of the swing angles θa and θb (FIG. 1) of the crank arms 34a and 34b is preferably set to 120 degrees or less. When the crank arms 34a and 34b are close to the top dead center or the bottom dead center, the movement of the links 35a and 35b becomes smaller than the movement of the crank arms 34a and 34b, and the threader 37 can be moved at an intended speed. Although it becomes difficult, by moving the crank arms 34a and 34b within the above-described range, the threader 37 can be moved at an intended speed.

Further, when the movement of the threading 37 is controlled by the servo motors 33Ma and 33Mb, (i) the traveling speed of the threading 37 is controlled to be constant, and (ii) the threading 37 is around the pin 11. The speed of the threading 37 is controlled based on a predetermined deformation curve. (Iii) Acceleration and deceleration of the threading 37 are performed based on a predetermined deformation curve. (iv) A mode in which the feeding speed of the thread material 3 from the thread material original fabric 3r around which the thread material 3 is wound can be set at a constant speed can be taken. To (iv).

Note that such movement of the yarn hooking device 30 can be controlled by operating a servo mechanism with a rotary encoder attached to the servo motors 33Ma and 33Mb.

FIG. 6A and FIG. 6B are examples of changing the continuous rotation pattern of the thread material 3, respectively. The rotation pattern of the thread material 3 is different from the rotation pattern of FIG. 3 by shifting the position of the thread hooking pins 11c and 11d in the circumferential direction of the rotation carrier 10 so that the thread material 3 is removed from the tag 2 above. The extending direction is slanted with respect to the axial direction of the rotary carrier 10, and the hanging thread is lengthened in each extraction bag manufactured from the extraction bag sheet.

6A and 6B, the rotation pattern of the thread material 3 is a strong seal portion s2 (that is, the position where the hanging thread is attached to the extraction bag) described later between the thread material 3 and the water-permeable filter sheet 4. Each extraction bag manufactured from the sheet for the extraction bag is different depending on whether it is in the vicinity of the top of the pyramid type or in the center of the side of the pyramid type.

7A and 7B show the threading trajectory La for the thread hooking pin 11 (11a, 11b, 11c, 11d) when the continuous pattern of FIGS. 6A and 6B is obtained. 6A and 6B use the same pattern as the arrangement of the thread hooking pins 11 that protrude from the peripheral surface of the rotary carrier 10, as shown in FIG. As shown in FIG. 7A, the rotation pattern shown in FIG. 6A is obtained by letting the threading path 37 take the trajectory La for threading all of the yarn hooking pins 11a to 11d. As shown in FIG. By causing the pin 11a to have a track La that is not threaded, the rotation pattern of FIG. 6B is obtained. According to the yarn hooking device 30 of the present embodiment, the change of the trajectory La of the threading 37 can be easily performed by controlling the servo motors 33Ma and 33Mb.

Since the thread hooking pin 11 is moved as indicated by the arrows in FIGS. 7A and 7B by the rotation of the rotary carrier 10 as described above, the trajectory of the threading 37 with respect to the fixed coordinates is, for example, When a 6B rotation pattern is obtained, the trajectory Lb in FIG. 8 is obtained.

2 is a machine for manufacturing the sheet 1 for extraction bag in which the above-described yarn hooking device 30 is incorporated in the yarn hooking mechanism 40. In the extraction back sheet manufacturing machine 1, the yarn hooking mechanism 40 includes a driving roller 401 for feeding the yarn material 3 from the yarn material raw material 3r, a nip roller 402 opposed thereto, a tension adjusting means 410 for the yarn material 3, and a rotation support. The yarn hooking device 30 for forming a continuous pattern of the thread material 3 on the peripheral surface of the body 10 is provided, and the tension adjusting means 410 includes a dancer mechanism 420 and a path length adjusting device 430 downstream thereof.

The rotating carrier 10 is continuously rotated in the direction of the arrow by a servo motor during operation of the manufacturing machine 1 (FIG. 2).

The outer periphery of the rotary carrier 10 is divided into 24 parts, and two placement parts for the tag 2 are provided close to each divided area. At the place where the tag 2 is to be placed, the suction of the tag 2 is started from the position facing the tag supply device 20, and the tag 2 and the water-permeable filter sheet 4 are weakly sealed as will be described later (seal device 64). And a mechanism for sucking and holding the tag 2 with a vacuum pump or a blower motor by switching the suction path by the rotary bubble so that the extraction bag sheet is sucked before it is separated from the peripheral surface of the rotary carrier 10. Is provided.

Further, the rotary carrier 10 is provided with a vertical mechanism for the pin 11 for thread hooking. In this up-and-down mechanism, the pin 11 is always urged by a spring so as to protrude from the peripheral surface of the rotary carrier, but in the region where the water-permeable filter sheet 4 is supplied to the peripheral surface of the rotary carrier 10. Then, it is lowered toward the inside of the rotary carrier along the shape of the fixed cam provided inside the rotary carrier 10 so that the amount of protrusion from the peripheral surface of the pin 11 is small.

The tag supply device 20 feeds the tag tape 2t from the tag tape original fabric 2r around which the tab tape 2t is wound, and cuts the tag tape 2t into a tag 2 having a predetermined length, and the tag cut supply device 21 cuts the tag tape 2t. The tag delivery drum 22 moves the tag 2 to the peripheral surface of the rotary carrier 10.

In this tag supply device 20, the tag cut supply device 21 is provided with a cam mechanism so that the tag 2 can be supplied as fast as possible without loosening the tag tape 2t from the tag tape original fabric 2r to the rotary carrier 10. The tag tape 2t is cut while being swung as indicated by an arrow, and the cut tag 2 is transferred to the tag transfer drum 22. The tag delivery drum 22 rotates at a constant speed, and the tag 2 delivered from the tag cut supply device 21 is carried on the rotation carrier 10 at a predetermined interval.

The sheet supply device 50 unwinds the water-permeable filterable sheet 4 from the sheet raw material 4r around which the water-permeable filterable sheet 4 is wound, and the water-permeable filterable sheet 4 is supported on the rotation carrier 10 at a predetermined interval. It supplies so that it may place on the continuous pattern of the tag 2 and the thread material 3 formed on the tag 2. Here, the water-filterable sheet 4 can be fed out by controlling the feed-out speed with the nip drive roller 52 that feeds the water-filterable sheet 4 with an angle detector attached to the dancer roller 51 in the middle of the path. It is adjusted as fast as possible.

As the sealing device 60, before supplying the water-permeable filterable sheet 4 onto the rotary carrier 10, the tag 2 and the thread material 3 carried on the rotary carrier 10 are sealed as shown in FIG. After supplying the water-permeable filterable sheet 4 onto the first seal device 61 and the rotary carrier 10 that are strongly sealed at s1, as shown in FIG. 9 (b), in the region for each extraction bag, the tag 2, a second sealing device 62 that strongly seals the thread material 3 and the water-permeable filter sheet 4 at a portion s2 that is separated from the water-filterable sheet 4 in the longitudinal direction, as shown in FIG. A third sealing device that weakly seals the yarn material 3 and the water-permeable filter sheet 4 at a portion s3 where the yarn material 3 is extended in the axial direction of the rotary carrier 10 from the side, that is, the width direction of the water-permeable filter sheet 4 63, the tag 2 and the water-permeable filter sheet 4 are attached at the seal part s4 shown in FIG. 9 (d). And a fourth sealing device 64 for sealing.

Here, the strong seal means that the seal part is firmly sealed to the extent that the seal part does not peel off in the use of the normal extraction bag, and the weak seal is a degree that the seal part can be easily peeled off when the extraction bag is used. It means to seal weakly. Further, in the figure, hatching frames surrounding the seal portions s1, s2, s3, and s4 indicate regions where the seal head is applied.

In addition, in the manufacturing machine 1 of the sheet for extraction bags of the present invention, the seal part can be appropriately changed according to the rotation pattern of the thread material 3, the arrangement of the pins 11, and the like. For example, the strong sealing portion s2 between the thread material 3 and the water-permeable filter sheet 4 is equivalent to one extraction bag from the boundary region of one extraction bag as indicated by s2 ′ indicated by a broken line in FIG. 9B. You may shift to the center side of an area | region. Moreover, you may serve as the seal | sticker site | part s2 of the boundary area | region for every extraction bag by the width direction seal | sticker of the water-permeable filter sheet 4 at the time of bag making. However, by tightly sealing the thread material 3 and the water-permeable filterable sheet 4 at the seal portion s2 before bag making, the thread that becomes a hanging thread on the water-permeable filterable sheet 4 constituting the bag body in the extraction bag. This is preferable because the material 3 can be securely bonded.

The sealing means in these sealing devices 60 (61, 62, 63, 64) may be ultrasonic welding or heat welding. However, ultrasonic welding is advantageous in that the sheet melt does not adhere to the sealing device. preferable.

Further, these sealing devices 60 are preferably moved up and down with respect to the peripheral surface of the rotation carrier 10 by using a servo motor as a drive source separately from the drive source of the rotation carrier 10. It is preferable to make it swing as shown by the arrow shown in FIG. As a result, the contact time between the seal head of the sealing device 60 and the tag, the thread material or the water-permeable filterable sheet that is the object to be sealed becomes longer, so that optimum sealing conditions can be easily set. Appropriate sealing conditions can be set even when the material is changed.

As a method of manufacturing the extraction bag sheet 5 with the extraction bag sheet manufacturing machine 1 of the present embodiment, first, the tag tape original fabric 2r, the yarn material original fabric 3r, and the sheet original fabric 4r are respectively set in the present machine. Then, the tag supply device 20 feeds the tag tape 2t from the tag tape original fabric 2r, cuts it into the tag 2, and carries the tag 2 on the peripheral surface of the rotary carrier 10 at a predetermined interval.

Next, the yarn hooking pin 11 is protruded from the peripheral surface of the rotary carrier 10, and the yarn material 3 is fed out from the yarn material original fabric 3 r by the yarn hooking device 30, and the yarn material 3 is fed to the peripheral surface of the rotary carrier 10 Is threaded into the continuous pattern shown in FIG.

Then, the first seal device 61 strongly seals the tag 2 and the thread material 3 as shown in FIG. 9A, and the sheet feeding device 50 passes the tag 2 and the thread material 3 on the rotary carrier 10. A water-filterable sheet 4 is supplied. The pin 11 protruding from the peripheral surface of the rotary carrier 10 when threading is pulled down when the water-permeable filter sheet 4 is supplied, and is passed when the tag 2 or the thread material 3 and the water-filterable sheet 4 are sealed. It prevents wrinkles from forming on the water filterable sheet 4.

After that, the second sealing device 62 strongly seals the thread material 3 and the water-permeable filter sheet 4 as shown in FIG. 9B, and the third sealing device 63 as shown in FIG. 9C. The thread material 3 and the water-permeable filter sheet 4 are weakly sealed, and the tag 2 and the water-filterable sheet 4 are weakly sealed by the fourth sealing device 64 as shown in FIG.

In this manner, the extraction bag sheet 5 shown in FIG. 10 can be obtained on the rotary carrier 10. In the figure, s1 is a strong seal part between the tag 2 and the thread material 3, s2 is a strong seal part between the thread material 3 and the water filterable sheet 4, and s3 is a weak seal between the thread material 3 and the water filterable sheet 4. The part, s4, is a weak seal part between the tag 2 and the water-permeable filterable sheet 4.

The extraction bag sheet 5 may be wound up in a roll shape and subjected to a separate filling and packaging machine to be used for manufacturing an extraction bag. However, as shown in FIG. Alternatively, the extraction bag 6 may be manufactured by sending it to the filling and packaging machine 70. In that case, the filling and packaging machine 70 is operated in accordance with the speed of the extraction bag sheet 5 fed out by the reference feed roller 71 having a servo motor.

As the filling and packaging machine 70, various known ones can be used. For example, as shown in FIG. 11, a cylindrical body 73 having a former guide 72 for guiding the extraction bag sheet 5, and an extraction bag Auger filling machine 80 that feeds tea leaves or the like, which are the contents of each, into the cylinder 73 by a predetermined amount, a feed roller 74 that moves the extraction bag sheet 5 wound around the cylinder 73 downward, and both side edges of the extraction bag sheet 5 A vertical sealing device 75 that seals a tube and a horizontal sealing device 76 that seals the extraction bag sheet 5 formed into a cylindrical shape in the width direction can be used. The horizontal sealing device 76 swings an attachment base (not shown) of the seal head 76a by 90 ° in a plane perpendicular to the longitudinal direction of the cylindrical body 73, and the seal head 76a is moved every time the swing base 76 is swung. By running in the width direction of the extraction bag sheet, welding and cutting in the width direction of the extraction bag sheet 5 are sequentially performed. Thus, for example, from the extraction bag sheet 5 of FIG. 10, as in the extraction bag 6 shown in FIG. 12, the widthwise seals sx, sy at the upper and lower end edges of the pyramid type extraction bag are twisted positions. In addition, one end of the hanging thread made of the thread material 3 and the water-permeable filter sheet 4 are strongly sealed at the seal part s2 in the vicinity of the top, and the hanging thread is formed at the part s1 at the other end of the hanging thread. It is possible to obtain an extraction bag in which the tag 2 is strongly sealed and the hanging thread and the tag 2 are weakly sealed with the water-permeable filter sheet 4 at the portions s3 and s4, respectively.

In the filling and packaging machine 70, as the lateral sealing device 76, when sealing the extraction bag sheet in the width direction, the seal head 76a and its receiving 76b are moved downward so that the traveling of the extraction bag sheet 5 is not stopped. Is preferred. In this case, the seal head 76a and the receptacle 76b of the lateral seal device 76 are rotated 90 ° from the lowest position and returned to the upper position. Therefore, it is preferable to move the horizontal sealing device 76 repeatedly as shown by the arrows in FIG.

In addition, the sealing means of the vertical sealing device 75 and the horizontal sealing device 76 may be ultrasonic or may be heated.

In addition, as the horizontal sealing device 76, a first horizontal sealing device and a second horizontal sealing device having a sealing direction different by 90 ° are provided in a plane perpendicular to the longitudinal direction of the cylindrical body 73, and these are used alternately. You may make it do.

Further, when unnecessary edge portions (ear portions) are generated by welding and cutting the both side edge portions of the extraction bag sheet 5 using the vertical sealing device 75, scrap winding means 77 is provided for winding the edge portions. May be.

The threading device 30 of the present invention can be used in various extraction bag sheet manufacturing machines. For example, it can also be used to route a thread material of an extraction bag sheet for producing a flat bag-shaped extraction bag.

In addition, as the thread material 3, the tag tape 2t, and the water-permeable filter sheet 4 used in the yarn hooking device 30 and the extraction bag sheet manufacturing machine 1 of the present invention, conventional ones can be used. For example, as the thread material 3, one formed from a material capable of ultrasonic welding or heat welding including thermoplastic synthetic fibers such as polypropylene and polyethylene can be used. As the tag tape 2t, paper, What was formed from the plastic sheet etc. can be used. Further, as the water-permeable filter sheet 4, synthetic fibers such as polyester, nylon, polyethylene, and polypropylene, semi-synthetic fibers such as rayon, woven fabrics, nonwoven fabrics, papers made of natural fibers such as mulberry, Mitsumata, etc. For example, a film having many holes can be used.

INDUSTRIAL APPLICABILITY The yarn hooking device and extraction bag sheet manufacturing machine of the present invention are useful for continuously manufacturing tea bags for tea, green tea, herbs, etc., boiled and dried bonito extract bags on the production line. .

It is the perspective view (a) and top view (b) of the threading device of an Example. It is a schematic block diagram of the manufacturing machine of the sheet | seat for extraction bags of an Example. It is a top view of the rotation pattern of the thread | yarn material formed in the surrounding surface of a rotation carrier. It is explanatory drawing of the threading track | orbit with respect to the surrounding surface of a rotation carrier. It is explanatory drawing of the threading track | orbit with respect to a fixed coordinate. It is a top view of the rotation pattern of the thread | yarn material formed in the surrounding surface of a rotation carrier. It is a top view of the rotation pattern of the thread | yarn material formed in the surrounding surface of a rotation carrier. It is explanatory drawing of the threading track | orbit with respect to the surrounding surface of a rotation carrier. It is explanatory drawing of the threading track | orbit with respect to the surrounding surface of a rotation carrier. It is explanatory drawing of the threading track | orbit with respect to a fixed coordinate. It is explanatory drawing of a seal | sticker site | part. It is a top view of the sheet | seat for extraction bags. It is a perspective view of a filling packaging machine. It is a perspective view of an extraction bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Manufacturing machine of extraction bag sheet 2 Tag 2r Tag tape original fabric 2t Tag tape 3 Thread material 3r Thread material original fabric 4 Water-permeable filterable sheet 4r Sheet original fabric 5 Extraction bag sheet 6 Extraction bag 10

Rotating carrier

11, 11a, 11b, 11c, 11d Pin 20 Tag supply device 21 Tag cut supply device 22 Tag delivery drum 30 Threading device 31 Joint portion 32a First drive crank mechanism 32b Second drive crank mechanism 33Ma, 33Mb Servo motors 34a, 34b Crank arm 35a, 35b Link 36 Thread guide 37 Threading 38 Threading holding bracket 40 Threading mechanism 401 Nip roller 410 Thread material tension adjusting means 420 Dancer mechanism 422 Servo motor 430 Path length adjusting device 50 Sheet supply device 51 Dancer roller 52 Nip Driving roller 60 Seal device 61 First seal device 62 Second seal device 63 Third seal device 64 Fourth seal device 70 Filling and packaging machine 71 Reference feed roller 72 Former guide 73 Cylindrical body 74 Feed roller 75 Vertical seal device 76 Horizontal Sealing device 76a Seal head 76b Seal head receptacle 77 Scrap winding means 80 Auger filling machine La Trajectory Lb with threading pin Threading trajectory θa, θb Crank arm swing angles s1, s2, s3, s4 Seal part

Claims

A thread hooking method for forming a continuous pattern of the thread material in the sheet for the extraction bag by rotating the threader on the peripheral surface of the rotating carrier from which the thread hooking pin protrudes,
A threading method characterized in that the threading is driven by two drive crank mechanisms and a servo motor is used as a drive source of each drive crank mechanism.
2. The yarn hooking method according to claim 1, wherein the threader is rotated so that the thread material is stretched in a substantially axial direction of the rotary carrier on the tag sucked and held at a predetermined interval on the rotary carrier.
4. The yarn threading method according to claim 2 or 3, wherein each servo motor reciprocates.
The tag bonded to the thread material is a method for producing a sheet for an extraction bag in which the tags are arranged at predetermined intervals in the longitudinal direction of the water-permeable filter sheet,
(1) A step of carrying the tag at a predetermined interval on the rotary carrier
(2) Threading step of forming a continuous pattern of thread material by rotating the threader on the peripheral surface of the rotating carrier from which the threading pin protrudes
(3) Bonding process of thread material and tag
(4) A step of supplying a water-permeable filterable sheet onto the tag and the thread material on the rotating carrier.
(5) having a step of adhering the tag or thread material and the water-permeable filterable sheet on the rotation carrier, and (2) in the threading step, the threading is driven by two drive crank mechanisms, and each drive crank A method for manufacturing a sheet for an extraction bag, wherein a servo motor is used as each drive source of the mechanism.
A yarn hooking device that forms a continuous pattern of the thread material in the sheet for the extraction bag by rotating the threader on the peripheral surface of the rotating carrier from which the thread hooking pin protrudes,
A yarn hooking device comprising two drive crank mechanisms for driving threading, wherein the drive source of each drive crank mechanism is a servo motor.
Each of the two drive crank mechanisms has a crank arm connected to the servo motor at one end and a link connected to the other end of the crank arm, and the link of one drive crank mechanism and the link of the other drive crank mechanism are substantially orthogonal to each other. The threading device according to claim 5, wherein a threading holding bracket having a threading is provided at a tip of one link.
The tag bonded to the thread material is a machine for manufacturing a sheet for an extraction bag in which the tags are arranged at predetermined intervals in the longitudinal direction of the water-permeable filterable sheet,
(1) Tag supply device for supporting a tag on a rotating carrier at predetermined intervals
(2) A yarn hooking device that forms a continuous pattern of yarn material by rotating the threader on the peripheral surface of the rotating carrier from which the yarn hooking pins protrude.
(3) Sealing device for bonding tag and thread material
(4) Sheet supply device for supplying a water-permeable filterable sheet onto the tag and thread material on the rotating carrier
(5) having a sealing device for adhering the tag or thread material and the water-permeable filterable sheet on the rotating carrier; (2) the threading device has two drive crank mechanisms for driving the threading; A machine for producing a sheet for an extraction bag, wherein the drive source of each drive crank mechanism is a servo motor.