RU2575753C2 - Textile material cutter - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention can be used at the extraction pouches production unit. Claimed device comprises the soldering means wherein the labels retained on the holder bearing surface at preset spacing and textile material displacing over said labels are soldered together. It comprises the textile material tensioner arranged between the adjacent labels. Note here that when soldering appliance solders the textile material to the labels said tensioner stretches the material to be cut. The plant for production of the pouch web comprises the above described device. Besides, it incorporates the feeder of labels to the holder bearing surface and the textile material feeder. The latter feeds said textile material over several labels retained on the holder bearing surface. Means for soldering of the labels and textile material are arranged at the holder as well as label and textile material feeders. Means for soldering of the labels or textile material to the web.

EFFECT: simplified design, higher efficiency.

5 cl, 13 dwg

Description

FIELD OF TECHNOLOGY

[0001] The present invention relates to a device for cutting a filament material for use in a device for manufacturing a web for extraction bags.

BACKGROUND

[0002] Bags of black tea, green, herbal and other teas, as well as extraction bags with soup, which contain, for example, dried sardine and dried mackerel, are made of a permeable filter material, such as a non-woven material and the like. A water-permeable filter material forms the bulk of bags having a flat tetrahedral or similar shape, each bag being filled with extracted material, for example, tea leaves, and containing a hanging thread with a label attached to the outer surface of the bag body for use with bags.

[0003] A canvas for use in the manufacture of said extraction bags is formed from a tape of a permeable filter cloth, on which hanging filaments with a label for individual extraction bags are placed one after another with predetermined gaps in the longitudinal direction of the canvas. As a device having high performance for manufacturing a web for extraction bags, a device is known in which labels are placed at predetermined intervals on a tape permeable web in the longitudinal direction of the web and in which a long filament material is located above each label (Patent Documents 1 and 2)

[0004] A device for manufacturing a web for extraction bags produces a web for extraction bags by placing labels on the outer surface of the rotating holder at predetermined intervals, turning the long filament material into a continuous winding pattern on the rotating holder so that the filament material is placed over said labels, connecting by welding labels with filament material on a rotating holder, then applying a permeable filter cloth to the rotating holder and unified by welding labels or filament material with a permeable fabric.

[0005] The canvas for the extraction bag is fed to a packaging machine in which both lateral edges of the web are joined together (vertical joint) in the longitudinal direction to form a cylindrical main part, wherein the welding / fusion-trimming (horizontal joint) width of the cylindrical main part and filling the contents are alternately repeated for the production of extraction sachets. In this case, if repeated horizontal connection is performed in the same direction, then flat extraction bags are formed, if the connection is made by changing the position of the cylindrical main part by 90 degrees on a plane perpendicular to the longitudinal direction of the cylindrical main part, then tetrahedral extraction bags are formed.

[0006] The flat and tetrahedral shaped extraction bags thus produced are made in such a way that the filament material and the permeable filter cloth are welded together at the upper and lower attachment points of the extraction bags. Thus, in order to make an extraction bag that will be used with the main part of the extraction bag along with hanging thread, it is necessary to cut the filament material from the transverse section of the attachment near the label.

[0007] Moreover, due to the fact that the level of ecological culture has increased, a permeable filter cloth / filament material made of biodegradable plastic has been used to make extraction bags.

[0008] However, when the extraction bags are made of a permeable filter cloth / or a filament material made of biodegradable plastic, as described above, the permeable filter cloth and the filament material are firmly joined by welding. This is the reason that the permeable filter cloth ruptures if the filament material is removed from the attachment site using an extraction bag.

[0009] In order to solve this problem, the filament material in the extraction bag can be removed in advance from the formed horizontal attachment portion, and the filament material can be removed during use of the extraction bag. As a method for removing filament material at the stage of production of extraction sachets, a method is known in which trimming of filament material is carried out using a cutter, wherein raising and trimming of filament material is performed sequentially (Patent Document 3). This method can also be used in the manufacture of canvas for extraction bags.

LIST OF LINKS

Patent documents

[0010]

Patent Document 1: International Patent Publication No. 2009/141867;

Patent Document 2: International Patent Publication No. 2009/141870;

Patent Document 3: translation from Japanese published PCT application No. Hei.9-502146.

SUMMARY OF THE INVENTION

Technical problem

[0011] However, in such an apparatus for manufacturing a web for extraction sachets, an increase in the dimensions of the apparatus is required to ensure placement in three technological positions for cutting, lifting and trimming the filament material. In addition, cutting using a torch also requires maintenance due to wear on the insert, which leads to an increase in the cost of manufacturing a web for extraction bags.

[0012] Under these conditions, an object of the present invention is to provide a device for cutting thread material included in an apparatus for producing extraction sachets with a compact configuration without using a cutter, and to create an apparatus for producing extraction sachets having said device for cutting thread material.

SOLUTION

[0013] The author of the present invention has established the following. The installation for the production of extraction sachets contains a means for welding, in which the labels are held on the bearing surface at predetermined intervals, and the filament material, located according to a certain continuous laying pattern above the labels, is sequentially heated under the press and, thereby, connected by welding on the holder, This filament material, which is easy to melt / cut, is easily trimmed by applying tension to it during welding of labels and filament material. In addition, in order to carry out the circumcision described above, a conventional apparatus for manufacturing a web for extraction bags, including conventional means for welding, may have a means for applying tension to the filament material, thereby obtaining a compact configuration.

[0014] That is, the present invention relates to a device for cutting filamentary material used in an apparatus for producing extraction bags containing welding means in which labels are held on a carrier surface of a holder at predetermined intervals and a filament material arranged to be placed above labels are welded together on the holder, while the device for cutting the thread material contains means for applying tension, made with the possibility of interaction with filament material placed between adjacent labels to apply tension to the filament material, wherein when the welding means welds the filament material to the labels, the tensioner applies tension to the filament material in order to cut the filament material.

[0015] The present invention also provides an apparatus for manufacturing a web for extraction sachets, comprising:

the above-described device for cutting thread material;

means for supplying labels to the bearing surface of the holder;

means for supplying filament material for placement over several labels that are held on the bearing surface of the holder;

means for welding labels and thread material on the holder;

means for feeding the web onto labels and filament material onto the holder; and

welding means for welding labels or filament material with a web.

USEFUL EFFECTS OF THE INVENTION

[0016] A device for cutting a filament material made in accordance with the present invention can be used when it is included in the installation for the production of canvas for extraction bags. When the extraction sachets are made from the canvas for extraction bags made using the installation for the production of canvas for extraction bags, which includes a device for cutting thread material made in accordance with the present invention, when using the formed extraction bags, the thread material may not be removed from the transverse site attachment. Accordingly, even when the extraction sachets are made of biodegradable plastic, the problem that the permeable web when using the extraction sachet can break is solved.

[0017] In addition, in accordance with the device for cutting the filament material made in accordance with the present invention, the filament material is cut by applying tension to the filament material at the time of welding of the label and filament material. Thus, there is no need to use a torch, and operating costs for maintenance of the cutting insert are also reduced. In addition, in view of the fact that, in accordance with the present invention, a filament material is used in the device for cutting the filament material, which can be easily melted and cut during welding of labels and filament material, a compact configuration of the apparatus is achieved.

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a view of a general configuration of an installation for manufacturing a web for extraction bags containing a device for cutting thread material made in accordance with one embodiment, as well as a packaging machine.

FIG. 2 is a plan view of a web for extraction bags made by the apparatus for manufacturing a web for extraction bags shown in FIG. one.

FIG. 3 is a plan view illustrating a continuous tortuous pattern for laying filament material formed by the web for producing extraction bags shown in FIG. one.

FIG. 4 is a rear view in the vicinity of a rotatable holder located in the web for manufacturing the extraction bag web of FIG. one.

FIG. 5A is a front view of a first attachment device in a position prior to welding labels and filament material.

FIG. 5B is a section through a first attachment device taken along line AA.

FIG. 5C is a section through the front end of the attachment head.

FIG. 6A is a front view of a first attachment device during welding of a label and a filament material.

FIG. 6B is a sectional view of a first attachment device taken along line AA.

FIG. 7 is a flowchart depicting the welding of labels and threads and the cutting of filament material.

FIG. 8 is an explanatory view illustrating steps for welding labels and thread and trimming thread material in accordance with a modified aspect of the first attachment device.

FIG. 9 is a flowchart depicting the welding of labels and threads, the cutting of filament material and the welding of labels or filament material with a permeable web.

FIG. 10 is a perspective view of an extraction sachet made from a web for extraction sachets, which is produced using an apparatus for manufacturing a web for extraction sachets.

DESCRIPTION OF EMBODIMENTS

[0019] The present invention is described in more detail below with reference to the drawings. It should be noted that the same or similar parts of the elements are denoted by the same reference numbers in all relevant drawings.

[0020] FIG. 1 is a perspective view of an apparatus 1 for manufacturing a web for extraction bags in one embodiment of the present invention, which comprises a device for trimming thread material made in accordance with one embodiment of the present invention and a packaging machine 70 configured to connect to apparatus 1 .

[0021] As shown in FIG. 2, the installation 1 produces a web 5 for extraction bags, in which the labels 2 connected by welding with the filament material 3 are arranged at predetermined intervals in the longitudinal direction of the permeable web 4. In FIG. 2, a dash-dot line with two dots indicates a portion in which horizontal attachment is performed. Each area, divided by a dash-dot line with two points, represents one extraction bag.

[0022] In the web 5, a pair of labels 2a and 2b comprise a section with a strong attachment s1 on which the label 2 and the filament material 3 are welded so as not to become disconnected during normal use of the extraction bag. Such pairs of labels 2a and 2b with a certain interval are placed in the longitudinal direction of the permeable web 4 together with the filament material 3, which is cut on the horizontal section of the attachment between the pair of labels 2a and 2b.

[0023] As shown in FIG. 1, apparatus 1, which is generally similar to the apparatus for manufacturing web for extraction bags disclosed in Patent Documents 1 and 2, comprises a rotating holder 10 that rotates in the direction of the arrow, a label supply device 20 that delivers labels at predetermined intervals to the peripheral a surface representing the bearing surface of the rotatable holder 10, a thread guiding mechanism 40, comprising a thread guiding device 30 that forms a continuous pattern of filament material 3 on the peripheral surface of the rotating holder 10, on which labels 2 are arranged at predetermined intervals, a web feeder 50 that delivers a permeable web 4 to the labels 2, and filament material to the rotating holder 10, and an attachment device 60 that connects the label 2 and filament material 3, connects the label 2 and the permeable web 4, or sequentially connects the filament material 3 and the permeable web 4.

[0024] Similar to the traditional packaging machine, the packaging machine 70, installed downstream of the installation 1, also produces tetrahedral bags using the canvas 5 for extraction bags, which is made using the installation 1, and also fills the bags with contents, for example, tea leaves, to get extraction sachets 6.

[0025] The corresponding devices that are part of the installation 1, ie the rotating holder 10, the feeding device 20 for the labels, the guiding mechanism 40 for the thread, the feeding device 50 of the canvas and the fastening device 60, may generally have a configuration similar to the configuration of the installation for the production of canvas for extraction bags disclosed in Patent Documents 1 and 2.

[0026] For example, when the apparatus 1 is operating, the rotatable holder 10 rotates continuously in the direction of the arrow shown in FIG. 1. The outer periphery of the rotating holder 10 is divided into 24 sections, each of which contains a section with two parts of the connected labels 2 adjacent to each other. The connecting part of the label 2, located on the rotating holder 10, has a mechanism configured to change the suction channels in order to suction and thereby move the label 2. The rotating holder 10 also includes a mechanism for vertically moving the thread guide pin 11. In the mechanism for vertical movement, the pin 11 is spring-loaded in such a way that it always protrudes beyond the peripheral surface of the rotating holder. However, in the feeding portion of the permeable web 4 to the peripheral surface of the rotating holder 10, the stud 11 is retracted towards the inside of the rotating holder, following the shape of the fixed cam located inside the rotating holder 10 so that only a small part of the stud 11 extends beyond the peripheral surface.

[0027] The label feeding device 20 comprises a label cutting device 21 that unwinds a label tape 2t from a 2 g roll of label tape made from a folded label tape 2t and cuts the tape into labels 2 of a predetermined length, as well as a pick-up drum 22 for labels, which transfers the labels 2, cut by the feeding device 21 for cutting labels, on the peripheral surface of the rotating holder 10.

[0028] The label supplying device 20 cuts the label tape 2t during the oscillating movement of the label supplying device 21 by the cam mechanism, as shown by arrows, so that labels 2 can be supplied from a 2 g roll of label tape to the rotatable holder 10 as fast as possible, avoiding sagging tape 2t labels. The receiving-output drum 22 rotates at a constant speed, as a result of which the rotating holder 10 transfers the labels 2 received from the label feeding device 21 at predetermined intervals.

[0029] The thread guiding mechanism 40 is configured such that, with continuously adjustable tension of the filament material 3, a continuous winding pattern of the filament material 3 is formed on the peripheral surface of the rotating holder 10, on which labels 2 are arranged at predetermined intervals, as shown in FIG. 3. The thread guide mechanism 40 includes a drive roller 401 that unwinds the filament material 3 from the roll 3r of filament material, a pinch roller 402 facing the drive roller 401, means 410 for adjusting the tension of the filament material 3, and a filament guide device 30 forming a continuous a winding pattern of the filament material 3 on the peripheral surface of the rotatable holder 10. The thread guide 30 moves the thread guide 37 at the upper end using two crank mechanisms so that lyat thread on the guide pin 11 of the thread projecting from the peripheral surface of the rotary holder 10.

[0030] The web feeder 50 unwinds and feeds the web 4 from a web roll 4r formed from a rolled web 4, so that the web 4 is superimposed on labels 2 moving on the rotating holder 10 at predetermined intervals, and on the thread material 3, formed on the labels 2. In particular, as the fabric 4 is used a permeable fabric.

[0031] The attachment device 60 includes a first attachment device 61 that firmly attaches labels 2 and filament material 3 that move on the rotatable holder 10, in the attachment portion s1 shown in FIG. 2, even before the permeable web 4 is supplied to the rotating holder 10; a second attachment device 62 that firmly attaches the filament material 3 and the permeable web 4 to the portion s2 in which the filament material 3 is separated from the label 2 in each portion corresponding to one extraction bag after the permeable web 4 is supplied to the rotating holder 10; a third attachment device 63, which is used to loosely attach the filament material 3 and the permeable web 4 to a portion s3 in which the direction of the filament material 3 changes in the immediate vicinity of the label 2; and a fourth attachment device 64, which is used to loosely attach the labels 2 and the permeable web 4 to the attachment portion s4.

[0032] As used herein, the term “strong attachment” means that the attachment portion provides a strong attachment that does not come apart during normal use of extraction bags, while the phrase “weak attachment” means that the attachment portion provides a loose attachment that can be easily detached when using extraction sachets. In the drawing, the shaded contours that surround the attachment portions s1, s2, s3, and s4 illustrate portions in contact with the attachment heads.

[0033] Although examples of fastening means in said fastening devices 60 (61, 62, 63, 64) may include ultrasonic welding and heat welding, ultrasonic welding is preferred since the fused web trim adheres worse to the fastening devices 60.

[0034] Furthermore, it is preferable to provide the servomotor in the aforementioned attachment devices 60 as an excitation source separately from the excitation source of the rotatable holder 10, so that the attachment devices 60 move vertically relative to the peripheral surface of the rotatable holder 10. It is more preferable to move the attachment devices 60 as shown by the arrows in FIG. 1 and 4, in synchronization with the rotation of the rotating holder 10. As a result, the duration of contact between the fastening heads of the fastening devices 60 and the fastened objects, including labels, filament material or a permeable fabric, is increased. This makes it possible to easily set the optimum attachment parameters and the corresponding attachment parameters when changing the mentioned materials.

[0035] In particular, the attachment device 60 is configured as shown in FIG. 4. Each attachment device 61, 62, 63 and 64 is mounted on the fixing plates 610 for the fixing head using pneumatic cylinders (not shown), the fixing plates 610 for the fixing head are mounted on the mounting plates 601 for the fixing head, while the mounting plates 601 for the fixing head the heads are mounted on a vibrating plate 602 configured to radially oscillate the rotatable holder 10. Each mounting plate 601 for the fixing head is connected to a vert cial movable plate 604 via the lever 603, the vertically movable plate 604 is further connected to the attachment portion vertically managed servomotor 65 through the lever 605. The vibrating plate 602 is also driven by servo motor 66 creates vibrations sticky head. It should be noted that the servomotor 65, which drives the fastening head vertically, and the servo motor 66, which creates vibrations of the fastening head, are made separately from the servomotor of the rotating holder, and their actuation is controlled by the controller in such a way that they are driven at a set rotation speed and the direction of rotation, with time synchronization calculated in advance, in accordance with the winding scheme of the filament material 3, the rotation speed of the rotating holder 10, n necessary time for pressure welding, etc.

[0036] FIG. 5A is a front view of the first attachment device 61 in a position prior to welding, and FIG. 5B is a sectional view taken along line AA. In the first attachment device 61, the attachment head 620A and the attachment head 620B are mounted on the attachment plate 610 for the attachment head, whereby the attachment head 620A ultrasonically welds the label 2 and the filament material 3 in the strong attachment portion s1 of the label 2a shown in FIG. 2, and with the aid of the attachment head 620B, ultrasonic welding of the label 2 and the filament material 3 is performed on the strong label attachment portion s1 s1 adjacent to the strong label attachment portion s1 2a. Thus, a firm attachment of the label 2 and the filament material 3 is simultaneously performed on adjacent labels 2a and 2b. As shown in FIG. 5C, a protruding portion 621 is formed on the upper end side of the ultrasonic horn-shaped surface that each of the said fixing heads 620A and 620B forms, which is located on the edge of the side on which the filament material 3 should be cut, and a recess 622 adjacent to it is made on the inside to the protruding part 621. The horn-shaped surface 623 for welding labels 2 and filament material 3 is made in other areas. The protruding portion 621 protrudes slightly in the direction of the rotating holder 10 from the horn-shaped surface 623, for example, to a height P of approximately 0.1 mm. Although the size of the protrusion itself is small, the filament material 3 bites into the protrusion 621, when the label 2 and the filament material 3 are welded, pressure is applied to the horn-shaped surface 623, which facilitates cutting of the filament material 3. In addition, since the formed recess 622 is adjacent to the protruding part 621, the recess 622 acts as an exit portion of the molten filament material 3, so that the molten filament material 3 does not protrude from the protruding part 621. The upper end side of the street The ultrasonic horn-shaped surface can have a different shape, for example, a flat shape without protruding parts 621 and recesses 622, and a shape having either protruding parts 621 or recesses 622, depending on the materials being welded and the like. labels 2 and filament material 3. In this case, although the protruding part 621 may have a flat surface with a width “w” of approximately 0.2 mm, however, the protruding part 621 may have a pointed upper end similar to a cutting tool.

[0037] Furthermore, as shown in FIG. 6A and 5B, the device 90 for cutting the filament material, made in accordance with the presented embodiment, is located between the two fastening heads 620A and 620B. The device 90 for cutting the filament material has a means for applying tension, which applies a pulling force to the filament material 3 located between the labels 2a and 2b, while the two attachment heads 620A and 620B are connected by welding labels, respectively, 2a and 2b, with the filament material 3. The means for applying tension contains a pair of pressure plates 91, which press the filament material 3, placed between the said labels, in the direction of the inner part of the rotating holder 10, and two recesses 92, about formed on the surface of the rotating holder 10, so that the pressure plates 91 can be inserted into them.

[0038] These two pressure plates 91 are mounted on the mounting plate 93, while the pressure plate mounting plate 93 is connected to the pneumatic cylinder 94, and the pneumatic cylinder 94 is mounted on the mounting plate 610 for the attachment head together with the attachment heads 620A and 620B.

[0039] The spring material support member 96 is mounted, via the spring material 95, on the pressure plate mounting plate 93, on the side of the rotatable holder 10, and a pair of thread material attachment devices 97 protrudes from the spring material support member 96 on the side of the rotatable holder 10. When the attachment heads 620A and 620B press the labels 2 and the filament material 3 due to the oscillatory movement of the mounting plate 610 for the attachment head, while the device 97 for fixing the filament material AET textile material 3 by rotating the holder 10 on the opposite side of pressure places opposite recesses 92.

[0040] In the vicinity of the pair of recesses 92, a retracting tube 100 is provided for retracting and removing, from the surface of the rotating holder 10, the filament material 3 trimmed with the apparatus for trimming the filament material.

[0041] The principle of operation of the thread material cutting device is shown in FIG. 7, when the first attachment device 61 is operating. In the apparatus 1 for producing a web for extraction bags containing a device for cutting thread material, welding the label 2 with thread material 3, cutting the thread material 3 and welding the label 2 or thread material 3 with a permeable the web 4 is performed as shown in FIG. 9.

[0042] First, the labels 2 are transferred onto the rotating holder 10 at predetermined intervals using the label feeding device 20, while the filament material 3 guided to the studs 11 by the thread guiding mechanism 40 is placed above the labels 2 (Fig. 7 (a ) and 9 (a)). Next, a pair of labels 2a and 2b, in which the sections s1 of strong attachment of the label 2 and the filament material 3 are facing each other (see Fig. 2), the areas of s1 strong attachment are connected by welding using the attachment heads 620A and 620B of the first attachment device 61. When connected by welding, the mounting plate 610 oscillates relative to the rotating holder 10 so that the attachment heads 620A and 620B press the labels 2a and 2b and the filament material 3. The filament material attachment device 97 also presses the filament th material 3 to the surface of the rotating holder 10 by vibrational movements of the fixing plate 610 for attaching the head (see. FIG. 7 (b)).

[0043] In this case, the pressure of the attachment heads 620A and 620B is controlled by a pneumatic cylinder (not shown). Then, after the filament material 3 is melted due to the heat of ultrasonic welding performed by the attachment heads 620A and 620B, the pneumatic cylinder 94 presses the pressure plate mounting plate 93, as shown in FIG. 6A and FIG. 6B. Accordingly, the pressure plate 91 presses on the recess 92, while the spring material 95 is compressed, so that the pressure acting on the thread material 3 is applied to the device 97 for fastening the thread material. At this stage, the filament material 3 should be easily melted - cut off due to the heat of ultrasonic welding performed using the fixing heads 620A and 620B. More preferably, a protrusion 621 is formed on the edge of the upper surface of the ultrasonic horn-shaped surface on the cut-off part of the filament material 3. Thus, when tension is applied to the filament material 3 by pressing the pressure plate 91 into the recess 92, the filament material 3 is cut (Fig. 7 ( c) and 9 (6)). In particular, when the pressure plate 91 is pressed into the recess 92, in a position in which the filament material 3 is pressed against the side of the rotating holder 10 under the action of the attachment heads 620A and 620B and the filament material attachment device 97, a strong tension is applied to the filament material 3. Thus, the filament material 3, which can be easily melted - cut off by the heat of ultrasonic welding using the fixing heads 620A and 620B, is cut along the edge of the fixing heads 620A and 620B. This does not allow the trimmed residues of the filament material 3 to hang over the label 2. Thus, the extraction bags 6 made from the canvas 5 for the extraction bags obtained by the apparatus 1 for manufacturing the canvas for the extraction bags have an aesthetic appearance.

[0044] Further, when the pressure plate 91, pressed under the action of the pneumatic cylinder 94, is released, the pressure plate 91 rises from the recess 92. After the pressure exerted by the action of the pneumatic cylinder 94, the pressure plate installation plate 93 also rises, with the compressed spring material 95 expands and, thus, the pressure of the attachment device 97 on the filament material 3 decreases. In addition, the attachment heads 620A and 620B and the filament attachment device 97 are raised depending on the oscillatory movement of the attachment head attachment plate 610.

[0045] Then, the filament material 3 is retracted and removed from the surface of the rotatable holder 10 by the retraction tube 100 (Fig. 7 (c)).

[0046] In the apparatus 1 for manufacturing a web for extraction bags, welding the label 2 and the filament material 3 by welding and cutting the filament material 3 is performed in this way, and then, as described in Patent Documents 1 and 2, a permeable web 4 is fed on the labels 2, and the filament material 3 is fed to the rotating holder 10. Then, the filament material 3 and the permeable web 4 are firmly attached to the strong attachment portion s2 using the second attachment device 62 (Fig. 9 (c)), the filament material 3 permeable fabric 4 is weakly attached to the attachment portion s3 weak anchoring devices using a third device 63 (FIG. 9 (c1)), and label 2 and 4 slightly permeable web is secured with anchoring devices via a fourth device 64 (FIG. 9 (e)). Thus, between a pair of labels 2a and 2b, in which the sections h1 of the strong attachment of the label 2 and the filament 3 material are facing each other on the fabric 5 of the extraction bags, the filament material 3 is removed from the section that is connected in the horizontal direction (at the time of the production of the extraction bag) as shown in FIG. 2. In particular, the material is removed from the edge of the welded portion of the label 2 and the filament material 3. Thus, as shown in FIG. 10, the extraction bag 6 made from the aforementioned web does not have a filament material 3 to be removed from the horizontal attachment portion “sx” when the label 3 is removed from the body of the bag using the extraction bag 6, and therefore, the bulk of the bag cannot to tear. The extraction bag 6 also has an aesthetic appearance, since the end of the filament material 3 does not hang from the label 2.

[0047] It should be noted that a permeable web, label, and filament material similar to those used in traditional cases can be used when the apparatus for trimming the filament material is included in an apparatus for manufacturing a web for extraction bags. Moreover, from the point of view of increasing the significance of the technical result of the present invention, it is preferable to use fabrics or non-woven materials that are formed from biodegradable plastic, for example, polylactide acid (PLC) and polybutylene succinate (PBS), with a base weight of 10 up to 30 g / m ² ; as a label, it is also preferable to use laminated cardboard with a layer of biodegradable plastic, such as polylactide acid (PLC) and polybutylene succinate (PBS); and as the filament material, it is preferable to use a thread made of biodegradable plastic, for example, polylactide acid (PLC) and polybutylene succinate (PBS), and / or a thread formed by appropriate mixing of biodegradable plastic and cotton.

[0048] A thread material trimming apparatus made in accordance with the present invention can be implemented in various embodiments. For example, as shown in FIG. 8 (a), each of the two pressure plates 91 may be located on opposite sides of the attachment heads 620A and 620B across sections of the yarn material 3 for melting / trimming. Along with this configuration, two recesses 92 can be made in each position. Accordingly, even when each pressure plate 91 has the same amount of pressure, the distance by which the filament material 3 needs to be pulled out becomes longer and the tension applied to the filament material 2 becomes stronger compared to the position in which each pressure plate 91 is formed as shown in FIG. 7 (a). Thus, the filament material 3 can be trimmed even if the filament material 3 tends to stretch, depending on the fabric of the filament material 3 used, by welding the label 2 and the filament material 3.

[0049] In addition, the proposed device for cutting the filament material can be made in such a way as to cut the filament material 3 at the same time on adjacent labels 2a and 2b, in which the areas of strong attachment s2 securing the label 2 and the filament material 3 are facing each other , or can be made in such a way as to cut the filament material 3 sequentially on adjacent labels 2a and 2b. Thus, the first attachment device 61, which welds the labels 2 and the filament material 3, may comprise not two pressure plates 91, but one pressure plate 91.

[0050] A device for applying tension that applies tension to the filament material while welding the labels and filament material is not limited to a means that presses the filament material 3 into the rotatable holder 10, but can use a means that, for example, stretches the filament material 3 into a direction parallel to the surface of the rotating holder 10.

[0051] The filament material attachment device 97 may not be included if the filament material 3 can be cut at the same time as the labels 2 and the material 3 are welded by tension applied to the material 3 by means of a pressure plate 91 or the like.

[0052] The holder on which labels and filament material are welded is not limited to a rotating holder similar to a drum, it may also be a mechanism similar to a conveyor belt having a flat travel path.

[0053] A device for removing a trimmed filament material 3 from a surface of a holder is not limited to a retraction tube that is provided on the holder. Instead, a similar device can be provided for cleaning the filament material 3 from the surface of the holder, and a device for blowing off the filament material 3 from the surface of the holder. In addition, the removal device may not be included, depending on the configuration of the tensioning device and the like in the device for cutting the thread material.

INDUSTRIAL APPLICABILITY

[0054] A device for cutting thread material, made in accordance with the present invention, can be used when it is included in the installation for the production of canvas for extraction bags, used in the production line for the continuous production of extraction bags, such as bags for black tea, green , herbal tea, etc., as well as extraction bags that contain soups, such as dried sardines and dried mackerel. A device for cutting thread material can be used as a device for cutting unnecessary thread material after welding labels and thread material.

LIST OF POSITION NUMBERS

1 installation for the production of canvas for extraction bags

2 label

2a and 2b a pair of labels

2r roll of label tape

2t tape labels

3 thread material

3r roll of filament material

4 permeable fabric 4 g web roll

5 cloth for extraction bags

6 extraction bag

10 rotating holder

11 hairpin

20 label feeder

21 label cutter

22 pickup drum for labels

30 thread guide

37 refueling device

40 thread guide

401 drive roller

402 pinch roller

410 tension adjuster

420 floating roller mechanism

430 path length adjustment device

50 web feeder

60 attachment device

61 first attachment device

610 plate for fixing head

620A, 620B mounting heads

621 protruding part

622 recess

623 horny surface

62 second attachment device

63 third attachment device

64 fourth attachment device

70 packaging machine

90 device for cutting thread material

91 pressure plate

92 recess

93 pressure plate mounting plate

94 pneumatic cylinder

95 spring material

96 support element of the spring material

97 filament mounting device

100 retract tube

51 sections with firm attachment of labels and thread material

52 section with strong attachment of filament material and waterproof fabric

53 area with weak attachment of filament material and waterproof fabric

54 area with weak labeling and filament

SX horizontal attachment area.

Claims (5)

1. A device for cutting the filament material used in the installation for the production of extraction bags containing welding means in which labels held on the carrier surface of the holder at predetermined intervals and filament material arranged to be placed on top of the labels are welded to the holder,
wherein the device for cutting the filament material contains means for applying tension, configured to interact with the filament material placed between adjacent labels, for applying tension to the filament material,
however, when the welding means welds the filament material to the labels, the tensioner applies tension to the filament material in order to cut the filament material. 2. The device according to claim 1, in which, when the means for welding simultaneously welds the filament material with adjacent labels, the means for applying tension pulls the filament material simultaneously welded to the adjacent labels in order to cut the filament material between adjacent labels. 3. The device according to claim 1 or 2, in which the means for applying tension comprises a recess made on the bearing surface of the holder, and a plate that is adapted to be inserted into the recess, the plate being inserted into the recess when the means for welding welds the filament material to the labels. 4. The device according to p. 3, in which the means for applying tension contains a device for fastening the filament material, designed to press the filament material to the holder on the opposite side from the place where the filament material is welded to a label located on the holder opposite the recess, wherein the attachment device of the filament material presses the filament material to the holder when the welding tool welds the filament material to the labels. 5. Installation for the production of paintings for the extraction bag containing:
a device for cutting thread material, made according to any one of paragraphs. 1-4;
label feeding means for supplying labels to a carrier surface of the holder;
a filing device for the filament material, designed to supply filament material, so as to place the filament material on top of several labels held on the bearing surface of the holder;
welding means for welding labels and thread material on a holder;
means for feeding the web, designed to feed the web on labels and filament material on the holder; and
welding means for welding labels or filament material to the web.

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