JP2020125554A - Japanese paper yarn production apparatus, and japanese paper yarn production method - Google Patents

Abstract

To provide a Japanese paper yarn production apparatus capable of mass-producing an inexpensive Japanese paper yarn by saving manpower, and energy.SOLUTION: The Japanese paper yarn production apparatus includes: a slitter 16 for slitting a Japanese paper sheet 12 delivered from a row Japanese paper roll 14 into a tape having a thine width in a feed direction; and a distributing means 40 for respectively distributing a plurality of Japanese paper tapes 18 which is slit, where the apparatus is constituted by feeding the distributed Japanese paper tapes 18 to a plurality of a yarn-like processing device units 20 by sending air into tubes 42 of the distributing means 40 to float.SELECTED DRAWING: Figure 1

Description

The present invention relates to a new washi yarn manufacturing apparatus and a new washi yarn manufacturing method.

In recent years, many products using Japanese paper threads, which can utilize the characteristics of Japanese paper, have been provided. The Japanese paper thread is obtained by slitting a sheet-shaped Japanese paper into a width of about several millimeters and twisting the slit Japanese paper tape into a thread. Industrially, a sheet-shaped Japanese paper is slit into various widths by a slitter, and the Japanese paper tape is wound on cheese to obtain a roll. From this roll, a Japanese paper tape having a width required by a twisting yarn manufacturer is purchased and set in a twisting machine or a covering machine for each weight unit to manufacture a twisted or covered Japanese paper thread.

However, when the Washi tape is wound on cheese, when the Washi tape roll is stored, or when the Washi tape is unwound from the roll to produce threads, the Washi tape collapses. May occur. Not only was material loss caused by winding collapse, but thread breakage was also caused, resulting in poor productivity. Further, the cut ends at both ends of the Washi tape are cut by a sharp blade, but since minute fluffs stand up, the Washi tape is entangled with the adjacent Washi tape and generates resistance when unwound. As a result, the Washi tape is often cut when the yarn is manufactured by the twisting machine or the covering machine, which is a cause of poor productivity. In the production of Japanese paper thread, the winding of Japanese paper tape and the work of taking out the wound Japanese paper tape and setting it on the twisting machine or the covering machine in units of weights are carried out manually each time, so human loss and time loss occur. Many were a bottleneck in cost reduction.

Therefore, it is conceivable to slit the Japanese paper sheet with a slitter and then directly form the thread. However, when slitting a Japanese paper sheet with a slitter, about 100 to 200 Japanese paper tapes are produced from one Japanese paper sheet. To process all these Japanese paper tapes into threads, It is necessary to arrange a twisting machine or a covering machine of 100 to 200 weights, which is the same as the number of weights. Even if many twisting machines or covering machines can be prepared, in order to directly supply the washi tape slit by the slitter to the twisting machine or covering machine, ensure the dimensions and working space of the twisting machine or covering machine. Therefore, even if the slitter is arranged at the center, it is necessary to convey a distance of at least about 10 m when the twisting machine is arranged at both ends. When 100 to 200 Washi tapes having a width of about 1 mm to several mm are conveyed in the air, the Washi tape may be cut by its own weight. It is also possible to convey the paper through a Japanese paper tape in the tube. According to the experiment conducted by the present inventor, there is a relation with the conveying speed necessary for increasing the production efficiency of the Japanese paper thread, but even at a distance of about 3 m. It was found that there is a possibility that the tube may break due to friction with the inner wall of the tube.

Japanese Patent No. 5437816

http://nipponkamiito.com/paperyarn.html http://kumojyo.co.jp/pc/kamiito/index.html

An object of the present invention is to process a Washi tape in which a Washi sheet slit by a slitter is continuously supplied as it is to a yarn twisting machine or a covering machine to process it into a Japanese paper yarn, thereby saving labor and labor, and inexpensive. It is an object of the present invention to provide a new washi yarn manufacturing apparatus and a washi yarn manufacturing method capable of mass-producing washi yarn.

In order to solve the above-mentioned problems, the washi yarn manufacturing apparatus according to the present invention, a raw paper washi roll obtained by winding a long Japanese paper sheet in a roll shape, and a Japanese paper sheet fed out from the raw paper washi roll is fed. Slitter slitting in the direction of a narrow tape, a distributing means having a tube having an inner diameter capable of passing a plurality of slit washi tapes, and a flow of air from the inlet to the outlet inside the tube It is provided with an air circulating means and a plurality of thread-like processing device units for processing the Japanese paper tape distributed by the tubes of the distributing means into a thread shape.

In another Japanese paper yarn manufacturing apparatus according to the present invention, a raw Japanese paper roll obtained by winding a long Japanese paper sheet into a roll shape, and a Japanese paper sheet fed from the original Japanese paper roll in a tape shape having a narrow width in a feeding direction. Slitter, a distributing means having a tube having an inner diameter through which a plurality of slit washi tapes can pass, respectively, and a plurality of thread processing units for processing the washi tape distributed by the tubes of the distributing means into threads. And the installation position of the slitter is arranged above the supply position of the washi tape to the plurality of thread processing device units, and the inclination angle of the tube of the distribution means is from 20 degrees to 60 degrees. .. More preferably, the tube of the distribution means has an inclination angle of 30 to 60 degrees.

In such a Japanese paper yarn manufacturing apparatus, one end of the tube is bundled and the other end is arranged in the yarn processing device unit in the distributing means.

Further, in the Japanese paper yarn manufacturing apparatus, the air circulating means includes a nozzle disposed toward the inside of the tube at the inlet, and a pressurizing device that sends compressed air to the nozzle.

Further, in such a Japanese paper yarn manufacturing apparatus, the air circulation means includes a suction member arranged to suck the internal air into the outlet of the tube, and a decompression device that sucks air from the suction member. It is in.

In such a Japanese paper yarn manufacturing apparatus, there is provided a suction means for sucking and discharging the cut Japanese paper tape to the outside, and a storage tank for storing the Japanese paper tape discharged by the suction means.

In the above-mentioned Japanese paper yarn manufacturing apparatus, the thread processing device unit is composed of a twisting device unit or a covering device unit.

Further, the yarn processing device unit in the Japanese paper yarn manufacturing apparatus is provided with a steam generating device that blows steam onto the Japanese paper tape or the Japanese paper thread.

Further, in the Japanese paper thread manufacturing apparatus, a cutting detection unit for detecting that the Japanese paper tape or the Japanese paper thread is cut is provided.

Next, the method for producing Japanese paper yarn according to the present invention comprises a step of preparing a Japanese paper sheet wound in a roll shape, a step of feeding the Japanese paper sheet in the longitudinal direction, and a width of the fed Japanese paper sheet in the feeding direction. The step of slitting into a tape shape, the step of distributing and transporting a plurality of slit washi tapes through the tubes, and the step of processing the transported washi tape into a thread shape.

Such a Japanese paper yarn manufacturing method is provided with the step of sending air into the tube in the carrying direction of the Japanese paper tape.

According to the washi yarn manufacturing apparatus and the washi yarn manufacturing method according to the present invention, the washi sheet fed out from the original paper roll is slit by the slitter, and the obtained washi tapes are distributed with the tube and the air circulation means. By means of a plurality of yarn processing devices. Most of the Washi tapes are not cut because the Washi tapes are carried in the respective tubes by the air circulation means along with the flow of air to the filament processing device unit. Therefore, most of the washi tapes are processed into washi threads.

This series of operations is performed until there is no more Japanese paper sheet on the original Japanese paper roll. In this Japanese paper thread manufacturing apparatus, even if some of the plurality of Japanese paper tapes or Japanese paper threads are cut, the Japanese paper thread manufacturing apparatus is manufactured without stopping the Japanese paper thread manufacturing apparatus. Therefore, during this work, there is almost no room for the worker to work, so that the labor can be saved. Further, it can be manufactured in the shortest time from a Japanese paper sheet to a Japanese paper thread. Therefore, the manufacturing cost can be significantly reduced.

In this Washi yarn manufacturing apparatus and Washi yarn manufacturing method, since the Washi tape is fed by the air flow inside the tube, the Washi tape is carried without resistance due to contact with the inner surface of the tube, and the Washi tape is cut. It rarely happens. When the velocity of the air flowing through the tube is equal to or faster than the feeding speed of the washi tape to the thread processing device unit, the washi tape can be fed without air resistance, and the washi tape is hardly cut.

It is a perspective view showing a schematic structure of a Japanese paper thread manufacturing device concerning the present invention. It is a schematic explanatory drawing of the slitter used for the washi yarn manufacturing apparatus which concerns on this invention. It is an expanded side view which shows the other Example of the slitter used for the Japanese paper thread manufacturing apparatus which concerns on this invention. It is explanatory drawing which shows schematic structure of the distribution means used for the washi thread manufacturing apparatus which concerns on this invention, (a) is a front view of the tube which is a distribution means, (b) is the distribution means which concerns on another Example. FIG. 6 is a front view including a tube, (c) is a cross-sectional view taken along line cc of (b), and (d) is a cross-sectional view of a main part according to another embodiment. It is a principal part expanded sectional view which shows an example of the air circulation means used for the washi yarn manufacturing apparatus which concerns on this invention. It is a principal part expanded sectional view which shows an example of the end part shape of the tube of the distribution means used for the washi yarn manufacturing apparatus which concerns on this invention. It is explanatory drawing which shows arrangement|positioning of the cutting Japanese paper tape discharge means used for the Japanese paper thread manufacturing apparatus which concerns on this invention. It is explanatory drawing which shows the apparatus structural example of the washi thread manufacturing apparatus which concerns on this invention, (a) is a top view, (b) is a side view. It is explanatory drawing which shows the other apparatus structural example of the washi thread manufacturing apparatus which concerns on this invention. It is an explanatory view showing an example of composition of a covering device unit which is an example of a thread processing device unit used for a Japanese paper thread manufacturing device concerning the present invention. It is explanatory drawing which shows the structural example of the twisting apparatus unit which is an example of the thread-like processing apparatus unit used for the washi yarn manufacturing apparatus which concerns on this invention. It is a front view which shows the washi tape for manufacturing a washi thread. The black part in the figure is the color of the mount, and the washi tape that is the raw material is wrapped around the mount. It is a front view which shows an example of the Japanese paper thread manufactured by the twisting apparatus unit which is an example of the thread processing apparatus unit used for the Japanese paper thread manufacturing apparatus which concerns on this invention. The black part in the figure is the color of the mount, and the white thread is wrapped around the mount. It is a surface view which shows an example of the other Japanese paper thread manufactured by the twisting apparatus unit which is an example of the thread processing apparatus unit used for the Japanese paper thread manufacturing apparatus which concerns on this invention. The black part in the figure is the color of the mount, and the white thread is wrapped around the mount. It is a surface view which shows the Japanese paper thread which twisted the Japanese paper tape in the dry state for comparison with the twisting apparatus unit which is an example of the thread processing apparatus unit used for the Japanese paper thread manufacturing apparatus which concerns on this invention. The black part in the figure is the color of the mount, and the white thread is wrapped around the mount. It is a side explanatory view showing other embodiments of distribution means used for a Japanese paper thread manufacturing device concerning the present invention.

[Schematic configuration of Japanese paper yarn manufacturing device]
As shown in FIG. 1, a Japanese paper yarn manufacturing apparatus 10 according to the present invention includes a raw Japanese paper roll 14 in which a long Japanese paper sheet 12 is wound into a roll shape, and a Japanese paper sheet fed from the raw Japanese paper roll 14. A slitter 16 that slits 12 into a tape shape in the feed direction, and a tube 42 that distributes and conveys the slitted Japanese paper tapes 18 to a plurality of thread processing device units 20 that twist or cover each to process them into a thread shape. The distribution means 40 is provided with an air circulation means (not shown) for sending air into the tube 42 of the distribution means 40.

〔Japanese paper〕
The Japanese paper used in the present invention is a slurry-made Japanese paper raw material containing fibers obtained by beating raw materials suitable for Japanese paper such as kozo, mitsumata, gankin, hemp, softwood, hardwood, and bamboo grass. It is a paper made by filtering. The weight of Japanese paper is preferably about 8 to 30 g/m@2 in terms of manufacturing technology, but it is also possible to use one having a large weight exceeding this range or one having a small weight exceeding this range. The Japanese paper used in the present invention may contain raw material fibers other than the above-mentioned Japanese paper raw materials as long as the content is 20% by weight or less. When the content of fibers other than the raw material of Japanese paper exceeds 20% by weight, the hygroscopicity and strength peculiar to Japanese paper are deteriorated, which is not preferable. It is most preferable that the content of the above-mentioned Japanese paper raw material in the Japanese paper used in the present invention is 90% by weight or more in terms of product performance.

As the Japanese paper used in the present invention, a long sheet-like Japanese paper (Washi sheet 12) having a width of about 200 mm to 500 mm and a length of about 10,000 m to 50,000 m is used. It is not limited. The Japanese paper sheet 12 is manufactured so that the fibers of the Japanese paper raw material are aligned in the longitudinal direction as much as possible. Therefore, the obtained Japanese paper sheet 12 is formed so as to be relatively easy to be torn by the pulling force in the width direction, but is considerably strong and hard to be torn by the pulling force in the longitudinal direction. Therefore, the Washi tape 18 having a width of about 0.8 mm to about 30 mm obtained by slitting the Washi sheet 12 in the longitudinal direction is more difficult to cut as compared with a paper (Western paper) in which the direction of the raw material fibers is random. There is. The long Japanese paper sheet 12 is wound around a roller 22 in a roll shape to form a raw paper roll 14. The roller 22 is installed in a bearing (not shown) so that the Japanese paper sheet 12 can be smoothly delivered from the original paper roll 14. In addition, the original Japanese paper roll obtained by winding the long Japanese paper sheet 12 in a roll shape is placed on two rotating rolls which are parallel to each other, and the rotating rolls are rotated to change the original Japanese paper roll to the Japanese paper sheet. It is also possible to configure to send out 12.

[First transfer means]
The Japanese paper sheet 12 fed from the original paper roll 14 is sent to the next slitter 16 at a constant speed by the first transfer means 24. The first transfer means 24 is composed of a pair of rollers 25, a drive means (not shown), and a speed reducer, and the Japanese paper sheet 12 sandwiched by the pair of rollers 25 is transferred to the slitter 16 at a constant speed. The first transfer means 24 may include a mechanism or the like for keeping the tension of the Japanese paper sheet 12 fed from the original paper roll 14 constant.

[Slitter]
The slitter 16 includes a plurality of disc-shaped rotary blades 26 and a backing plate 28. As shown in FIG. 2, the rotary blades 26 are formed in the same shape by using a razor-shaped thin steel plate or the like, and a spacer 30 is interposed in order to make the interval between the rotary blades 26 constant. There is. As an example of this configuration in more detail, the rotary blades 26 and the spacers 30 are alternately fitted to the shaft 32, and caps 34 having female threads are screwed onto male threads formed on both ends of the shaft 32. .. It is also possible to interpose a key so that the rotary blade 26 does not slip on the shaft 32 due to the loosening of the cap 34. The shaft 32 is attached to a bearing (not shown) and is rotated by a driving device.

The width of the Japanese paper tape 18 cut by the slitter 16 is set in the range of about 0.8 mm to about 30 mm. Since the sum of the thickness of the rotary blade 26 and the thickness of the spacer 30 is the width of the washi tape 18, the thickness of the spacer 30 is changed in order to change the width of the washi tape 18. For example, in order to obtain 160 Japanese paper tapes 18 from one Japanese paper sheet 12, 161 rotary blades 26 and 160 spacers 30 are alternately arranged. Both ends of the Japanese paper sheet 12 cut by the rotary blade 26 are collected as unnecessary ears and used as new raw materials for Japanese paper. The number of Washi tapes 18 cut by the slitter 16 is 100 to 200, but is not limited to this number. It may be 100 or less, or 200 or more. The number of Japanese paper tapes 18 is determined by the relationship between the width of the Japanese paper sheet 12 used and the width of the Japanese paper tape 18 to be cut.

The surface of the backing plate 28 is always brought into contact with the blade edge of the rotary blade 26, and thus is made of a soft material so as not to damage the blade edge and a material having a hardness capable of cutting the Japanese paper sheet 12. The backing plate 28 may be a flat plate, but can also be configured by a columnar or tubular body that is rotated simultaneously with the blade edge of the rotary blade 26.

Alternatively, the slitter 16 may be composed of a plurality of knives 36 as shown in FIG. The individual knives 36 are configured to be rotatable about an axis 37, and the individual cutting edges are pressed against the abutting plate 28 by biasing means (not shown). In such a configuration, the Japanese paper sheet 12 is inserted between the blade edge of the knife 36 and the backing plate 28 and slid to cut the Japanese paper sheet 12, thereby obtaining a plurality of Japanese paper tapes 18. In this example, the Japanese paper sheet 12 is transferred by the first transfer means 24 and the second transfer means 38 described later, so that the Japanese paper sheet 12 is cut by the knife 36. Also in this example, a spacer is used between the knives 36 to adjust the width of the Japanese paper to be cut.

The rotary blades 26 and the knives 36 of the slitter 16 may be arranged at equal intervals, but the intervals are not limited thereto. For example, it is possible to simultaneously manufacture the Japanese paper tape 18 having a width of 1 mm and the Japanese paper tape 18 having a width of 2 mm. In this case, different Japanese paper threads are manufactured at the same time.

When the Japanese paper sheet 12 is slit by the slitter 16, a considerable amount of fine paper dust is generated and accumulated on the surface of the peripheral frame and other members. If this paper dust is left unattended, the paper dust 18 may break due to the accumulated paper dust and other troubles may occur in the washi yarn manufacturing apparatus. Therefore, it is preferable to provide a paper dust suction device (not shown) in the vicinity of the slitter 16. The paper dust suction device can also be used when the cut Japanese paper tape discharging means described later is of a suction type.

[Second transfer means]
The Japanese paper tape 18 cut into a plurality of pieces by the slitter 16 is sent to the next step by the second transfer means 38. The second transfer means 38 is configured to be able to hold the Japanese paper tape 18 cut into a plurality of pieces by a pair of rollers 39. The second transfer means 38 is driven by a drive means (not shown), similar to the first transfer means 24 described above. The first transfer means 24, the rotary blade 26 of the slitter 16 and the second transfer means 38 are preferably synchronized.

Here, the Japanese paper sheet 12 fed out from the original paper roll 14 is first sandwiched by the first transfer means 24 and the second transfer means 38 and stretched with an appropriate tension. In this state, the Japanese paper sheet 12 is set by the slitter 16 so as to be cut in the feeding direction, and when the Japanese paper sheet 12 is fed by the second transfer means 38, the Japanese paper sheet 12 is cut by the slitter 16 in a predetermined width and cut. The Washi tape 18 thus produced is sent out from the second transfer means 38. The leading end portion of the Japanese paper sheet 12 transferred by the second transfer means 38 that has not been cut by the slitter 16 is cut off. Since the plurality of washi tapes 18 cut in the feeding direction are held by the pair of rollers 39 of the second transfer means 38, they do not come apart. The plurality of Japanese paper tapes 18 have almost the same width as the Japanese paper sheet 12, but after the Japanese paper sheet 12 passes through the second transfer means 38, the ears at both ends thereof are collected in a collection box (not shown). The plurality of washi tapes 18 other than the ears at both ends of the washi sheet 12 are distributed in arbitrary directions via the distributing means 40 and supplied to the thread processing device unit 20.

[Distribution means]
The distributing means 40 can also be configured by bundling tubes 42 having an inner diameter sufficiently larger than the width of the washi tape 18, for example, an inner diameter of 4 to 10 mm, in the same number as the washi tape 18. For example, as shown in FIG. 1, one end of a plurality of tubes 42 is bundled and arranged in the vicinity of the second transfer means 38, and the other ends of the tubes 42 are arranged in the thread processing device unit 20, respectively. As a method of bundling the plurality of tubes 42, it is also possible to bunch them vertically and horizontally, as shown in FIG. The tubes 42 are preferably stacked three-dimensionally so that the Washi tapes 18 arranged in a line in a plane can be easily inserted into the tubes 42 one by one. Further, as shown in FIGS. 4B and 4C, the tube 42 may have a configuration in which a hole is formed in the fixing plate 44 and the tip of the tube 42 is fixed. A fixed number of fixing plates 44, to which the ends of the tubes 42 are fixed, are vertically stacked. Further, as shown in FIG. 3D, a hole may be opened in the fixing plate 44 to dispose the tube fixing member 45, and the tip of the tube 42 may be fitted to the tube fixing member 45. The tube 42 may be flexible, but may be made of a material such as a stainless tube or a copper tube having a property of not charging static electricity and abrasion resistance. When the distance from the inlet of the distribution means 40 to the yarn processing device unit 20 at the outlet is long, the metal tube 42 can maintain linearity, which is preferable. It is not necessary that the inner diameters of the tubes 42 used are all the same inner diameter. For example, the inner diameter of the long tube 42 can be made larger than the inner diameter of the short tube 42.

[Air distribution means]
The washi tape 18 is passed through each of the tubes 42, but the washi tape 18 can be easily passed through by inserting the washi tape 18 from one end of the tube 42 while sucking air from the other end of the tube 42. That is, a suction member (not shown) arranged to suck the air inside the tube 42 is provided at the outlet, which is the other end of the tube 42, and a decompression device (not shown) that sucks air from the suction member. .. The suction member and the decompression device form an air circulating means. As a result, the Japanese paper tape 18 can be distributed to the filament processing device units 20 at arbitrary locations. The tube 42 may have slits on its side surface in the longitudinal direction, but it is preferable that the tube 42 can hold the air flow therein. After the Japanese paper tape 18 of the tube 42 is passed, the suction member is removed from the outlet of the tube 42, and the decompression device is stopped.

The Japanese paper tape 18 passed through the tube 42 is conveyed by the air circulation means 43 shown in FIG. That is, the Washi tape 18 slit by the slitter 16 and sequentially sent is sent to the tube 42 which is the distribution means 40, but is caught by the air flow formed in the tube 42 by the air circulation means 43. And is transported so as to levitate in the air. The air circulation means 43 is configured to include a nozzle 43a arranged toward the inside at the inlet of the tube 42, and a pressurizing device such as a compressor (not shown) that sends compressed air to the nozzle 43a. The pressure or flow velocity of the compressed air sent by the nozzle 43a of the air circulation means 43 can be changed according to the length of the tube 42.

The air circulation means 43 is provided with a chamber that surrounds at least the inlet portion of the tube 42 and the pair of rollers 39 of the second transfer means 38, and pressurizes the pressure in the chamber with a pressure device. As a result, the air in the chamber passes through the tube 42 and is discharged to the outside. This action allows the air to flow in the tube 42. The washi tape 18 is conveyed along with the flow of air. The flow velocity of this air is preferably about 2 to 30 times the traveling speed of the washi tape 18.

[Cutting washi tape discharging means]
The tip of the tube 42, which is the outlet, is arranged near the filament processing device unit 20. The Japanese paper tape 18 conveyed in the tube 42 is directly supplied to the thread processing device unit 20. As shown in FIG. 6, it is preferable that at least the upper half of the tube 42 is cut off and the lower portion is bent downward to form a tongue piece 42a. The tongue portion 42a flows along the curved shape of the tongue portion 42a by the Coanda effect when the air flowing in the tube 42 exits from the tip portion. As a result, when the washi tape 18 conveyed in the tube 42 is cut, the cut end of the washi tape 18 flows along the tongue 42a and is discharged downward. Below the tongue piece 42a of the tube 42, a cut Japanese paper tape discharging means 90 is arranged. The cut Japanese paper tape discharging means 90 is provided with a suction means and a storage tank, and is configured to store the sucked and discharged Japanese paper tape 18.

As shown in FIG. 7, the cutting washi tape ejecting means 86, 88 sends the washi tape 18 to the distributing means 40 by the second transfer means 38 after slitting the washi sheet 12 into a narrow tape shape by the slitter 16. In the above, it is preferable to provide between the slitter 16 and the second transfer means 38 and/or between the second transfer means 38 and the distribution means 40. The cut Japanese paper tape ejecting means 86, 88 are for ejecting by suction when the Japanese paper tape 18 having a narrow slit is broken for some reason. Therefore, it is preferable that the cutting washi tape ejecting means 86, 88 suck the washi tape 18 in a direction substantially perpendicular to the traveling direction. The suction force of the cutting washi tape ejecting means 86, 88 should not be too strong to cut the washi tape 18, and conversely be too weak to suck and remove the washi tape 18 that has been cut. It shouldn't be. It is preferable to adjust the suction force of the cut Japanese paper tape discharging means 86, 88 while observing the situation of the Japanese paper tape 18.

That is, when the washi tape 18 obtained is cut when the washi sheet 12 is slit by the slitter 16, the cut washi tape 18 is sucked by the cutting washi tape ejecting means 86 from the beginning of the cut portion, Will be eliminated. Therefore, since the cut Japanese paper tape 18 is not sent to the next step, the cause of the trouble is eliminated. In addition, the rear portion of the cut Japanese paper tape 18 passes through the second transfer means 38 and the distribution means 40 as it is, and the covering thread 62 or the Japanese paper thread 72 is manufactured, and the thread processing device unit 20 is stopped at the cut position. Preferably.

Further, if the Japanese paper tape 18 is cut after it has passed through the second transfer means 38 and before being sent to the filament processing device unit 20, the cut Japanese paper tape 18 is cut from the beginning of the cut portion. It is sucked up by the discharge means 88 and eliminated. Even if the cutting location is inside the tube 42 of the distributing means 40, it is pulled back and eliminated by the cutting washi tape ejecting means 88. The cut Japanese paper tape 18 is sequentially fed by the second transfer means 38, but is sucked and removed by the cut Japanese paper tape discharge means 88. The rear portion of the cut Japanese paper tape 18 is sent to the thread processing device unit 20 as it is, and the covering thread 62 or the Japanese paper thread 72 is manufactured. The thread processing device unit 20 may be driven as it is, but it is preferable that the thread processing device unit 20 is stopped.

[Filiform processing unit]
The washi tape 18 distributed by the distribution means 40 is supplied to the thread processing device unit 20 at an arbitrary position. The thread processing device unit 20 is configured by a twisting device unit or a covering device unit, and the plurality of thread processing device units 20 may be one kind or a combination of two or more kinds selected from the twisting device unit or the covering device unit. it can. That is, it is not necessary to manufacture all the Japanese paper tapes 18 into the same kind of Japanese paper threads by the thread processing device unit 20, and it is possible to manufacture different kinds of Japanese paper threads simultaneously. Specific configurations of the twisting device unit and the covering device unit will be described later.

The filament processing device units 20 can be arranged in a horizontal row as shown in FIG. 1, but although not shown, they can be arranged in a substantially arc shape around the distribution means 40. Furthermore, as shown in FIG. 8A, it is possible to arrange the filament processing device units 20 in two rows. In this case, as shown in FIG. 2B, the fixing plates 44 of the distributing means 40 are arranged in the vertical direction, and the tubes 42 attached to the upper fixing plate 44 and the lower fixing plate 44 are attached. It is installed so as not to interfere with 42. In this way, the tubes 42 (Washi tape 18) distributed from the distribution unit 40 can be halved in spread without interfering with each other. From the same point of view, although not shown, it is also possible to arrange the filament processing device units 20 in three or more rows. In the drawings, the tube 42 is omitted and the Washi tape 18 is shown for simplification in drawing.

Further, as shown in FIG. 9, it is possible to arrange the filament processing device units 20 in a “U” shape. By arranging in this manner, the workability of the thread processing device unit 20 is improved. In the case of this example, the tube 42 attached to the fixing plate 44 of the distributing means 40 is curved in an arbitrary direction. Further, regardless of the arrangement of the thread processing device unit 20, the other end of the tube 42 can be disposed in any thread processing device unit 20. Note that, also in FIG. 9, for simplicity of drawing, the tube 42 is omitted and the Japanese paper tape 18 is shown.

[Covering device unit]
As an example of the filament processing device unit 20, the covering device unit 46 shown in FIG. 10 can be cited. The covering device unit 46 is supported by a bearing 48, and is rotated by a traveling belt 49. It has and. The outer peripheral portion of the bearing 48 is fixed to a frame (not shown), and rotatably supports the rotating tubular body 50 fixed to the inner peripheral portion thereof. The running belt 49 is an endless belt that is run by a drive device (not shown), and is configured to rotate a plurality of rotating tubular bodies 50 at the same time. The Japanese paper tape 18 sent from the distribution means 40 is passed through the hollow portion of the rotary tubular body 50 and wound around the winder 58. Reference numerals 60 and 61 are feed rollers.

In such a configuration, the sub thread 54 unwound from the winding body 56 is wound around the Japanese paper tape 18 that is made to run between the feed roller 60 and the feed roller 61. That is, when the washi tape 18 and the sub thread 54 are combined and sent to the winder 58, the traveling belt 49 causes the rotating tubular body 50 and the winding body 56 to rotate around the washi tape 18, and the sub thread 54 becomes the washi tape. Wrapped around 18. By adjusting the feed speed of the Japanese paper tape 18 and the rotation speed of the rotary tubular body 50, appropriate covering is obtained, and the covering thread 62 covered by the sub thread 54 is wound around the winder 58. Further, by reversing the traveling direction of the traveling belt 49, the winding direction can be reversed, and S winding or Z winding can be obtained arbitrarily.

In such an embodiment, it is also possible to feed the added yarn 64 from the feed roller 60 in order to attach the added yarn 64 to the Japanese paper tape 18. By doing so, the covering thread 65 in which the sub thread 54 is wound by combining the Japanese paper tape 18 and the additional thread 64 is obtained. The number of splicing yarns 64 is not limited to one and may be plural, and in this case, it is also possible to use different types of splicing yarns 64 in combination.

In the above-described embodiment, a plurality of winding bodies 56, each of which is formed by winding the sub thread 54 around the hollow bobbin 52, are installed in series on the rotary tubular body 50 to form a covering thread covered with a plurality of the same or different sub threads 54. You may do it. The sub yarn 54 or the added yarn 64 is preferably a long fiber, but is not particularly limited.

The configuration of the covering device unit described above is merely an example, and the covering device unit having another configuration may be used without any limitation.

[Twisting device unit]
As another example of the filament processing device unit 20, there is a twisting device unit 66 shown in FIG. The twisting device unit 66 has a spindle 68 supported by a bearing 48 and rotated by a traveling belt 49, and a twisted Japanese paper thread 72 wound around a hollow bobbin 70 that is mounted on the spindle 68 to obtain a roll 74. It is configured to be. More specifically, the washi tape 18 sent from the above-mentioned distributing means 40 is sequentially sent by the sending roller 60, and twisted as described later until it passes through the snell wire 76 fixed to a frame (not shown), as will be described later. The Japanese paper yarn 72 becomes the yarn 72, and the Japanese paper yarn 72 is wound around the hollow bobbin 70 via the traveler 78 that travels around the ring 77 arranged on the outer peripheral portion of the hollow bobbin 70. The ring 77 is reciprocated in the axial direction of the spindle 68 along a guide fixed to a frame (not shown). The outer peripheral portion of the bearing 48 is fixed to a frame (not shown), and the inner peripheral portion rotatably supports the spindle 68. The running belt 49 is an endless belt that is run by a drive device (not shown), and is configured to rotate the spindles 68 of the plurality of twisting device units 66 at the same time.

In such a configuration, the spindle 68 rotated by the traveling belt 49 rotates the hollow bobbin 70 externally mounted on the spindle 68, and swings the Japanese paper tape 18 (Japanese paper thread 72) having the end fixed to the hollow bobbin 70 and the traveler 78. Then, the Washi tape 18 is twisted into the Washi yarn 72. In such an operation, the Japanese paper tape 18 is twisted when it exits the feed roller 60. The washi thread 72 is wound around the hollow bobbin 70 by sequentially feeding the washi tape 18 by the feed roller 60. At this time, the ring 77 is moved up and down, and the Japanese paper thread 72 is evenly wound around the hollow bobbin 70.

As described above, the Japanese paper sheet 12 can be slit by the slitter 16, and the plurality of slit Japanese paper tapes 18 can be directly processed into the Japanese paper threads 72 by the plurality of twisting device units 66. In this process, if the worker first makes a setup, no further work is required thereafter, and a significant reduction in manufacturing cost can be expected. Furthermore, since the process of winding the slit Washi tape 18 on cheese is not required, the problem of roll collapse does not occur.

In the twisting device unit 66, a water tank may be provided immediately before the Japanese paper tape 18 is fed to the feed roller 60, and the Japanese paper tape 18 may be dipped in the water tank or sufficiently wet with water by a kiss roll or the like and then twisted. Is. As an example, a Japanese paper tape having a width of 3.0 mm and a basis weight of 15 g/m 2 shown in FIG. 12 was used, which was previously dipped in water and twisted. The Z twist was 189 turns/m, and the Japanese paper thread shown in FIG. 13 was produced. As shown in the figure, the fibers of the washi tape 18 absorbed water and softened, and not only the surface but also the inside were tightened. For this Japanese paper thread, for example, a thread suitable for fabrics for shoe insoles and uppers can be obtained.

Further, in the twisting device unit 66, the steam outlet 80 of the steam generator is provided at a position between the feed roller 60 and the snell wire 76, that is, at a position where the Japanese paper tape 18 is twisted into a Japanese paper thread 72. The steam 81 may be applied to the Japanese paper thread 72 through the steam outlet 80. The steam 81 is a concept including steam, superheated steam, mist (fog-like air), and the like. The steam generation device is not limited to any device as long as it can moisten the surface of the Japanese paper thread 72 as uniformly as possible. A chamber may be provided between the feeding roller 60 and the snell wire 76, and the chamber may be filled with the steam 81 so that the surface of the Japanese paper thread 72 is exposed to the steam 81. By applying (contacting) the steam 81 to the surface of the Japanese paper thread 72 that has been twisted, the surface of the Japanese paper thread 72 is softened by the steam, and as shown in FIG. The Japanese paper thread 72 is formed. The Japanese paper thread 72 shown in the figure has a Z twist of 189 turns/m. The Japanese paper yarn steam-treated in this way is suitable for a woven or knitted fabric such as clothing for spring, summer and autumn, or clothing such as a lab coat.

Washi is excellent in breathability, water absorption, sweat absorption, drying, and divergence, but the Japanese paper thread 72 shown in FIG. 14 obtained by the manufacturing method in which steam 81 is applied after twisting has irregularities on the surface. Since the interior is not tightened, the air permeability and the like can be secured, so that the performance unique to Japanese paper can be sufficiently obtained. Furthermore, in the manufacturing process, steam is applied to the surface of the Japanese paper thread, and the resulting Japanese paper thread does not seep into the interior of the Japanese paper thread, and since it naturally dries, it is not necessary to newly provide a drying step.

By the way, in the process of twisting the Japanese paper tape 18, when no steam is applied, as shown in FIG. 15, the conditions for twisting the Japanese paper tape 18 shown in FIGS. 13 and 14 (Z twist, 189 turns/m) and Although it was exactly the same, a smooth twisted yarn structure could not be obtained. Since Japanese paper has rigidity in a dry state, it is difficult to be rounded in the width direction due to the twisting force of the Japanese paper tape 18, and it tends to be twisted around the twisted portion, and it is considered that the Japanese paper cannot be twisted uniformly. ..

Next, in the twisting device unit 66 shown in FIG. 11, the auxiliary yarn 82 wound around one or a plurality of cones is prepared, the auxiliary yarn 82 is inserted from the feed roller 60, and the auxiliary yarn 82 is fed together with the washi tape 18. It is also possible to twist and make a composite yarn. As the auxiliary thread 82, one or more kinds of threads selected from the group consisting of long fibers (filaments) and spun threads can be used, and two or more threads of the same kind may be used.

Further, in FIG. 11, reference numeral 84 is a disconnection detecting means, which is fixed to a frame (not shown). The cutting detection means 84 detects the case where the Japanese paper thread 72 is broken at the twisting stage or the case where the Japanese paper tape 18 at the previous stage is broken and the Japanese paper thread 72 cannot be formed. The disconnection detecting means 84 is preferably a so-called non-contact type such as an optical type or a capacitance type, and a known type is used. When the cutting detection means 84 detects the cutting of the Japanese paper tape 18 or the Japanese paper thread 72, it is preferable to stop the operation of the corresponding twisting device unit 66.

Note that the configuration of the twisting device unit 66 described above is merely an example, and the twisting device unit 66 having another configuration may be used and is not limited.

〔effect〕
As shown in the above embodiment, the Japanese paper sheet 12 fed from the original paper roll 14 is slit into a plurality of narrow Japanese paper tapes 18 by the slitter 16. The plurality of washi tapes 18 are distributed in arbitrary directions by the distribution means 40 and 44, and are sent to the covering device unit 46 or the twisting device unit 66, and the covering yarns 62 and 65 or the twisting yarn 72 are manufactured, respectively. In this series of manufacturing processes, after the operation of the novel Japanese paper yarn manufacturing apparatus according to the present invention is started, the operator is not involved and labor can be saved. Further, in each manufacturing process, since the manufacturing is continuous, there is no time loss and the Japanese paper yarn can be manufactured quickly. Therefore, the manufacturing cost of the Japanese paper thread can be significantly reduced, and the inexpensive Japanese paper thread can be provided.

[Other Embodiments]
Although an example of the washi yarn manufacturing apparatus according to the present invention has been described together with other embodiments, the present invention is not limited to the above-described embodiments. For example, as shown in FIG. 16, the slitter 16 is arranged so that the installation position is higher than the supply position of the washi tape 18 to the filament processing device unit 20. Then, the Japanese paper tape 18 cut by the slitter 16 is distributed to the thread processing device unit 20 by the distribution means 40 via the second transfer means 38, but the inclination angle of the tube 42 of the distribution means 40 is a depression angle (diagonal angle). θ is set to 20 degrees to 60 degrees, more preferably 30 degrees to 60 degrees. With such a configuration, the Japanese paper tape 18 passed through the tube 42 of the distribution means 40 is sent to the thread processing device unit 20 by its own weight. In the present embodiment, the Japanese paper tape 18 is sent without being cut without requiring an air circulating means, but it does not prevent the air circulating means from being used together.

The material of the tube 42 of the distributing means 40 is preferably one that does not generate static electricity. This is because if the Japanese paper tape 18 is attracted to the inner surface of the tube 42 due to static electricity generated in the tube 42 for some reason, the Japanese paper tape 18 will be cut. Further, in order to improve the slip between the inner surface of the tube 42 and the Japanese paper tape 18, the inner surface of the tube 42 may be surface-treated with a fluororesin or the like that improves the slip.

Further, in the covering device unit 46 shown in FIG. 10, a steam generator may be provided in the vicinity of the outlet of the rotary tubular body 50 from which the covering yarn 62 in which the auxiliary yarn 54 is wound around the washi tape 18 comes out. By applying steam to the covered Japanese paper thread (62), the fluff generated at the slit ends of the Japanese paper tape 18 becomes round, and the covering thread 62 having a good feel is obtained.

Although the covering device unit and the twisting device unit have been described as examples of the filament processing device unit, it is needless to say that these device configurations are not limited to the above-described embodiments and various device configurations can be used. .. Therefore, the structure of the manufactured Japanese paper thread is not limited to the above-mentioned embodiment.

The cutting detection means 84 is provided on the assumption that the Japanese paper thread is cut, but the auxiliary thread 54, the splicing thread 64, the auxiliary thread 82, etc. may be cut, so that detection can be performed when these threads are cut. You may arrange|position one or several disconnection detection means 84. When the cutting detection means detects that the washi tape, the washi thread, or the sub-thread is broken, it is preferable to stop the covering device unit or twisting device unit in the subsequent step corresponding to the washi tape or the like. However, the present invention is not limited to this, and it is possible to notify the worker by blinking an alarm lamp or the like.

The running belt 49 for rotating the rotary tubular body 50 of the covering device unit 46 and the spindle 68 of the twisting device unit 66 can efficiently drive a large number of units by one driving device, but It is inconvenient when you want to drive them individually. Therefore, the drive device may be provided for each unit without using the traveling belt 49. According to this structure, when the washi tape 18 or the like is cut, it is possible to immediately stop only the corresponding thread processing device unit.

Once the Japanese paper thread manufacturing apparatus according to the present invention has started manufacturing, even if some of the plurality of Japanese paper tapes or Japanese paper threads are cut off, the manufacturing continues. In the meantime, the cut Japanese paper tape is sucked and removed by the cut Japanese paper tape discharging unit such as a suction unit so that the production of other Japanese paper threads is not hindered.

In addition, the present invention can be carried out in a mode in which various improvements, modifications or variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. Further, within the scope of producing the same action or effect, any of the matters specifying the invention may be replaced with another technique.

10: Japanese paper thread manufacturing apparatus 12: Japanese paper sheet 14: Raw paper Washi roll 16: Slitter 18: Japanese paper tape 20: Thread processing unit 24: First transfer means 38: Second transfer means 40: Distribution means 42: Tube 43: Air circulating means 46: covering device unit 62: covering yarn 66: twisting device unit 72: Japanese paper yarn 80: steam outlet (steam generator)
84: Cutting detection means 86, 88, 90: Cutting washi tape discharging means

Next, the method for producing Japanese paper yarn according to the present invention comprises a step of preparing a Japanese paper sheet wound in a roll shape, a step of feeding the Japanese paper sheet in the longitudinal direction, and a width of the fed Japanese paper sheet in the feeding direction. The step of slitting into a tape shape, the step of distributing a plurality of slit washi tapes through tubes, and the step of sending air into the distributed tubes in the direction of conveying the washi tape to convey the washi tape. And a step of processing the conveyed Washi tape into a thread shape.

Further, another method for producing Japanese paper yarn according to the present invention comprises a step of preparing a Japanese paper sheet wound in a roll shape, a step of feeding the Japanese paper sheet in the longitudinal direction, and a step of feeding the Japanese paper sheet fed out in the feeding direction. A step of slitting a width of tape into a tape shape, a step of distributing a plurality of slit washi tapes through tubes, and a step of tilting the distributed tubes at a depression angle of 20 to 60 degrees, There is a step of feeding the washi tape into the tube and a step of processing the fed washi tape into a thread shape.

Claims (11)

A raw Japanese paper roll made by winding a long Washi sheet into a roll,
A slitter for slitting a Japanese paper sheet fed from the original paper roll into a narrow tape shape in the feed direction,
Distributing means provided with a tube having an inner diameter capable of passing a plurality of slit washi tapes, respectively,
Air circulation means for creating a flow of air from the inlet to the outlet inside the tube,
And a plurality of thread-like processing device units for processing the Japanese paper tape distributed by the tubes of the distributing means into a thread shape. A raw Japanese paper roll made by winding a long Washi sheet into a roll,
A slitter for slitting a Japanese paper sheet fed from the original paper roll into a narrow tape shape in the feed direction,
Distributing means provided with a tube having an inner diameter capable of passing a plurality of slit washi tapes, respectively,
A plurality of thread processing device units for processing the Japanese paper tape distributed by the tubes of the distribution means into a thread,
A washi yarn manufacturing apparatus in which an installation position of the slitter is disposed above a washi tape supply position to the plurality of yarn processing device units, and a tube of the distributing means has an inclination angle of 20 to 60 degrees. The Japanese paper yarn manufacturing apparatus according to claim 1 or 2, wherein one end of the tubes of the distributing unit is bundled and the other end thereof is arranged in the yarn processing device unit. The said air circulation means is equipped with the nozzle arrange|positioned toward the inside at the inlet of the said tube, and the pressurizing device which sends compressed air to this nozzle, The Japanese paper yarn manufacturing apparatus in any one of Claim 1 to 3. .. The said air circulation means is equipped with the suction member arrange|positioned so that the air of the inside may be suctioned at the exit of the said tube, and the decompression device which sucks air from this suction member. Japanese paper thread manufacturing equipment. Suction means for sucking the cut Japanese paper tape and discharging it to the outside,
The washi yarn manufacturing apparatus according to claim 1, further comprising a storage tank that stores the washi tape discharged by the suction means. 7. The washi yarn manufacturing apparatus according to claim 1, wherein the yarn processing device unit is a twisting device unit or a covering device unit. The washi yarn manufacturing apparatus according to any one of claims 1 to 7, wherein the filament processing device unit includes a steam generator that brings steam into contact with the washi tape or the washi yarn. The washi yarn manufacturing apparatus according to any one of claims 1 to 8, further comprising cutting detection means for detecting that the washi tape or the washi thread has been broken. A step of preparing a Japanese paper sheet wound into a roll,
Sending the Japanese paper sheet in the longitudinal direction,
A step of slitting the sent out washi sheet into a narrow tape shape in the feeding direction,
Distributing a plurality of slit washi tapes via tubes, and transporting them,
And a step of processing the conveyed washi tape into a thread shape. The method for producing Japanese paper yarn according to claim 10, further comprising the step of sending air into the tube in a direction in which the Japanese paper tape is conveyed.