JP5908141B2 - Bamboo tube sealing method and bamboo tube sealing device - Google Patents

Description

  The present invention relates to a bamboo cylinder sealing method and a bamboo cylinder sealing apparatus that encloses a liquid in a bamboo cylinder having a hollow portion formed between bamboo nodes.

  Since bamboo has a hollow portion between the nodes, the bamboo cylinder having a hollow portion between the bamboo nodes can be formed by cutting the bamboo leaving the upper and lower nodes of the hollow portion. The bamboo cylinder can be used as a liquid container by injecting liquid into the hollow portion.

  As a method of injecting the liquid into the hollow part of the bamboo tube, an injection path communicating from the outside to the hollow part of the bamboo cylinder can be formed and liquid can be injected from the injection path, but a vascular bundle that functions as a bamboo conduit is formed. By utilizing this, it is possible to enclose the liquid in the hollow portion without forming an injection path in the bamboo tube.

  For example, in the method of enclosing a liquid in a hollow portion of a bamboo cylinder disclosed in Patent Document 1 (bamboo cylinder sealing method), the bamboo cylinder and the liquid are decompressed together with the container after the bamboo cylinder and the liquid are contained inside the container. Thus, the bamboo cylinder and the liquid are simultaneously brought into a reduced pressure state, and the reduced pressure state is maintained, so that the liquid penetrates into the hollow part of the bamboo cylinder, and thereby the liquid is sealed in the hollow part of the bamboo cylinder.

JP 2003-182701 A

  However, in the above conventional bamboo cylinder sealing method, since the bamboo cylinder and the liquid are equally decompressed and the liquid is infiltrated into the hollow part of the bamboo cylinder, there is almost no difference between the pressure of the hollow part of the bamboo cylinder and the pressure of the liquid. In addition, there is a problem that it takes a long time for the liquid to penetrate into the hollow portion of the bamboo tube.

  Further, since the liquid is brought into a reduced pressure state, depending on the kind of the liquid, decomposition or precipitation occurs, and there is a problem that the quality of the liquid sealed in the hollow portion of the bamboo tube is deteriorated.

Therefore, in the present invention according to claim 1, in a bamboo tube sealing liquid method in which liquid is sealed in a bamboo tube having a hollow portion formed between bamboo nodes, the bamboo tube is heated to expand the vascular bundle, and the bamboo tube After the hollow portion is decompressed, the liquid is sealed from the vascular bundle into the hollow portion of the bamboo tube by immersing the end of the bamboo tube in a liquid whose pressure is higher than the pressure of the hollow portion of the bamboo tube. It was to be.

  In the present invention according to claim 2, in the present invention according to claim 1, the bamboo cylinder is heated before the hollow portion of the bamboo cylinder is decompressed.

  Moreover, in this invention which concerns on Claim 3, after enclosing a liquid in the hollow part of the said bamboo cylinder in the said invention which concerns on the said Claim 1 or Claim 2, it decided to seal the both end surfaces of the said bamboo cylinder.

Further, in the present invention according to claim 4, in the bamboo cylinder sealing device for enclosing a liquid in a bamboo cylinder having a hollow portion formed between bamboo nodes, one end of the bamboo cylinder in a state where the vascular bundle is expanded by heating. decompression means and said Wei the other end of the bamboo by a state of being immersed and the other end of the bamboo in the liquid of higher pressure than the pressure of the hollow portion of the bamboo to be sucked vacuum hollow portion of the bamboo tube from A sealing means for sealing liquid from the tube bundle into the hollow portion of the bamboo cylinder is provided.

  And in this invention, there exists an effect described below.

  That is, in the present invention, in the bamboo tube sealing liquid method in which the liquid is sealed in the bamboo cylinder having the hollow portion formed between the bamboo nodes, the pressure of the hollow portion of the bamboo cylinder is reduced after the hollow portion of the bamboo cylinder is decompressed. Since the liquid is sealed in the hollow portion of the bamboo tube by immersing the end of the bamboo tube in a high-pressure liquid, the pressure and liquid in the hollow portion of the bamboo tube are suppressed while suppressing deterioration of the liquid. The liquid can be satisfactorily sealed in the hollow portion of the bamboo cylinder in a short time due to the difference between the pressure and the pressure.

  In particular, when the bamboo cylinder is heated before the hollow portion of the bamboo cylinder is depressurized, the bamboo cylinder can be sterilized to improve hygiene, and the bamboo cylinder is preliminarily maintained. The tube bundle can be expanded and liquid can flow into the hollow portion from the vascular bundle even when the hollow portion of the bamboo tube is decompressed, so that the liquid is sealed in the hollow portion of the bamboo tube in a shorter time. be able to.

  In addition, if the both ends of the bamboo cylinder are sealed after the liquid is sealed in the hollow part of the bamboo cylinder, the liquid enclosed in the hollow part of the bamboo cylinder can be prevented from leaking, It is possible to prevent mold and rot from occurring due to leakage.

  Further, in the present invention, in a bamboo cylinder sealing device for sealing liquid into a bamboo cylinder having a hollow portion formed between bamboo joints, a decompression means for sucking from one end of the bamboo cylinder to decompress the hollow part of the bamboo cylinder, and the bamboo cylinder A sealing means for sealing liquid from the other end of the bamboo cylinder to the hollow part of the bamboo cylinder by immersing the other end of the bamboo cylinder in a liquid having a pressure higher than the pressure of the hollow portion of the bamboo cylinder. Therefore, the liquid can be satisfactorily sealed in the hollow portion of the bamboo cylinder in a short time due to the difference between the pressure of the hollow portion of the bamboo cylinder and the pressure of the liquid while suppressing the deterioration of the liquid.

Explanatory drawing which shows the bamboo cylinder sealing liquid apparatus which concerns on 1st Example. Explanatory drawing which shows the sealing means based on 2nd Example. Explanatory drawing which shows the sealing means based on 3rd Example. Explanatory drawing which shows the sealing means based on 4th Example. Explanatory drawing which shows the liquid supply means which concerns on the 5th-7th Example.

  Below, the concrete structure of the bamboo cylinder sealing liquid method concerning this invention is demonstrated, referring drawings.

  The bamboo cylinder sealing method according to the present invention is a method of enclosing a liquid in a bamboo cylinder 4 (see FIG. 2) having a hollow portion 3 formed between the nodes 2 and 2 of the bamboo 1 and is hollow from the outside. In this method, a liquid is sealed in the hollow portion 3 by using a vascular bundle that functions as a water conduit for the bamboo 1 without forming an injection path leading to the portion 3.

  In this bamboo cylinder sealing method, it is desirable to heat the bamboo cylinder 4 (hollow part 3) first. Thereby, the outer surface of the bamboo cylinder 4 and the hollow part 3 are sterilized by heat.

  Thereafter, for example, a liquid is sealed in the hollow portion 3 using the bamboo tube sealing device 5 according to the first embodiment shown in FIG.

  Specifically, the bamboo cylinder 4 having a temperature higher than normal temperature is accommodated in a container 7 as the sealing means 6, and the decompression means 8 connected to the sealing means 6 is driven to decompress the inside of the container 7. Thereby, the hollow part 3 of the bamboo cylinder 4 will be in the state decompressed. At that time, when the bamboo tube 4 is preheated, the vascular bundle of the bamboo tube 4 can be expanded, and the vascular bundle can be prevented from being contracted and sealed by decompression. .

  Thereafter, liquid is supplied from the liquid supply means 9 connected to the sealing means 6 to the inside of the container 7, and the upper end cut surface and the lower end cut surface (end surface of the bamboo cylinder 4) where the vascular bundle of the bamboo cylinder 4 is exposed are liquid. Soak in. At that time, the liquid is set to a pressure (for example, atmospheric pressure) higher than the pressure (internal pressure) of the hollow portion 3 of the bamboo cylinder 4. Thereby, the liquid permeates the hollow portion 3 through the vascular bundle of the bamboo tube 4 due to the difference between the pressure of the hollow portion 3 of the bamboo tube 4 and the pressure of the liquid. At that time, since the liquid is not depressurized to an atmospheric pressure or lower, it is possible to prevent the liquid from being degraded or precipitated.

  After a predetermined amount of liquid has penetrated into the bamboo cylinder 4, the liquid is discharged from the container 7, and then a sealing agent such as beeswax is supplied into the container 7 from the sealing agent supply means 10 connected to the sealing means 6. Then, the sealing agent is attached to the outer surfaces such as the upper and lower end surfaces and the outer peripheral surface of the bamboo cylinder 4. Thereby, the bamboo cylinder 4 is sealed and it can prevent that a liquid leaks from the hollow part 3 of the bamboo cylinder 4. FIG.

  As described above, in the present invention, liquid can be sealed in the hollow portion 3 of the bamboo cylinder 4. The bamboo tube sealing method according to the present invention is not limited to the case of using a particularly limited device as long as it is a device configured to execute the above-described method.

  For example, the bamboo cylinder sealing device 5 shown in FIG. 1 has a configuration in which a pressure reducing means 8, a liquid supply means 9, a sealing agent supply means 10, a pressure raising means 11, and a discharge means 12 are connected to the sealing means 6.

  The sealing means 6 attaches a porous bottom plate 13 having water permeability to the bottom of a container 7 that can be separated vertically and accommodates a porous weight 14 having water permeability. In the sealing means 6, the bamboo cylinder 4 is placed on the upper part of the bottom plate 13 of the container 7, and the weight 14 is placed on the upper part of the bamboo cylinder 4. In this sealing means 6, a decompression meter 15 and a pressure gauge 16 are connected to a container 7 via valves 17 and 18, so that the internal pressure can be measured. Further, the sealing means 6 has a heater 19 attached to the container 7 so that the inside can be heated.

  The decompression means 8 connects a suction pump 20 to the container 7 via a valve 21 so that the pressure inside the container 7 can be decompressed.

  The liquid supply means 9 connects a liquid storage tank 22 opened to the atmosphere to the container 7 via a supply flow path (valve 23, filter 24) and a recovery flow path (valve 25, filter 26). While the liquid stored in 22 is supplied from the supply flow path to the container 7, the liquid supplied to the container 7 can be recovered from the recovery flow path to the liquid storage tank 22. The liquid storage tank 22 is placed on a measuring meter 27 so that the amount of liquid supplied (the amount enclosed in the bamboo cylinder 4) can be measured from the weight difference of the liquid.

  The sealant supply means 10 connects a sealant supply source 28 to the container 7 via a valve 29 so that the sealant can be supplied from the sealant supply source 28 into the container 7.

  The pressurizing means 11 connects the pressurizing pump 30 to the container 7 through a valve 31 so that the pressure inside the container 7 can be increased.

  The discharge means 12 includes an exhaust means 32 for discharging the gas inside the container 7 and a drain means 33 for discharging the liquid inside the container 7. In the exhaust means 32, an exhaust drain 34 connected to the outside is connected to the container 7 via a valve 35. In the drainage means 33, a drainage drain 36 connected to the outside is connected to the container 7 via a valve 37.

  In the bamboo cylinder sealing device 5, the bamboo cylinder 4 heated to a temperature equal to or higher than room temperature is placed on the bottom plate 13 of the container 7 of the sealing means 6, and then the weight 14 is placed on the upper part of the bamboo cylinder 4.

  Thereafter, the inside of the container 7 is decompressed using the decompression means 8. The container 7 and the liquid storage tank 22 are communicated with each other through the supply flow path in this reduced pressure state. Then, due to the difference between the pressure inside the container 7 (negative pressure) and the pressure in the liquid storage tank 22 (atmospheric pressure), the liquid stored in the liquid storage tank 22 of the liquid supply means 9 is depressurized via the supply channel. It is supplied to the inside of the container 7 in a state, and the bamboo cylinder 4 is immersed in the liquid, and the liquid penetrates into the hollow portion 3 through the vascular bundle of the bamboo cylinder 4.

  Thereafter, the container 7 and the liquid storage tank 22 are communicated with each other through the recovery flow path, and the pressure inside the container 7 is increased using the pressure increasing means 11. As a result, the remaining liquid that has been supplied to the container 7 and has not permeated into the hollow portion of the bamboo cylinder 4 is recovered from the container 7 to the liquid storage tank 22 via the recovery channel. If necessary, the discharge means 12 may be used to exhaust or drain the liquid.

  Thereafter, the sealant is supplied from the sealant supply means 10 into the container 7 to seal the bamboo cylinder 4. In this case, sealing can be performed without touching the bamboo cylinder 4 enclosing the liquid by hand, and hygiene can be improved. Excess sealant is drained using the draining means 12.

  The sealing means 6 is not limited to the configuration in which the bamboo cylinder 4 can be accommodated inside the sealable container 7. For example, as shown in FIGS. 2 to 4, the sealing liquid according to the second to fourth embodiments. The means 6 may be configured to use the bamboo cylinder 4 itself as a part of the container 7.

  The liquid sealing means 6 according to the second embodiment shown in FIG. 2 has an upper holder 40 mounted on a top of a screw support 39 standing on a base 38 so as to be movable up and down with a handle 41, and at the bottom of the screw support 39. The lower holder 42 is fixed, and the bamboo cylinder 4 can be sandwiched between the upper holder 40 and the lower holder 42. The upper holder 40 has a packing 43 attached to the lower inner side of the upward hook-shaped portion formed in the center portion to closely contact the upper peripheral edge of the bamboo cylinder 4, and an intake / exhaust port 44 is formed in the center of the hook-shaped portion to reduce the pressure. The means 8, the pressure boosting means 11, and the exhaust means 32 can be connected. The lower holder 42 attaches a packing 45 to the upper inner side of the downward bowl-shaped part formed in the center part to bring the lower peripheral edge of the bamboo cylinder 4 into close contact, and forms an intake / exhaust liquid port 46 in the center of the bowl-shaped part. The supply means 9 and the drainage means 33 can be connected.

  Further, the sealing means 6 according to the third embodiment shown in FIG. 3 has a support frame 59 attached to the upper part of the base 57 via an air cylinder 58, a screw support 60 attached to the upper part of the support frame 59, and a screw support. A pressing plate 61 is attached to 60 so as to be movable up and down, and a holder 62 is attached to an upper portion of the support frame 59. The holder 62 is attached to the inside of a rigid outer cylinder 63 with a flexible / stretchable sealing material 64 formed with a hollow portion therebetween, and a pump 65 is connected to the hollow portion via a valve 66. . When the holder 62 supplies air to the hollow portion using the pump 65, the sealing material 64 expands and the outer peripheral portion (body portion) of the bamboo cylinder 4 can be held. The holder 62 can hold the bamboo cylinders 4 having different sizes (outer diameters) well. The pressing plate 61 has a packing 67 attached to the lower surface so that it can be in close contact with the upper peripheral edge of the bamboo cylinder 4, and a pressure supply / exhaust port 68 can be formed in the center to connect the pressure reducing means 8, the pressure increasing means 11 and the exhaust means 32. I am doing so. Further, the support frame 59 is provided with a liquid supply means 9. The liquid supply means 9 attaches a hollow cylindrical body 69 to the lower part of the support frame 59, and attaches a flexible / stretchable liquid storage bag 70 to the upper part of the support body 59. A pump 71 is connected via a valve 72 to a hollow portion formed between the outer periphery of the liquid storage bag 70. The liquid supply means 9 supplies air to the hollow portion using the pump 71 to pressurize and contract the liquid storage bag 70 from the outside, and the liquid stored in the liquid storage bag 70 is hollowed out from the lower end of the bamboo cylinder 4. Parts can be supplied. In the liquid supply means 9, a predetermined amount of liquid stored in the liquid storage bag 70 in advance can be accurately supplied to the hollow portion of the bamboo cylinder 4.

  In addition, the sealing means 6 according to the fourth embodiment shown in FIG. 4 has a packing 74 attached to the lower surface of the support plate 73 so that it can be brought into close contact with the upper peripheral edge of the bamboo cylinder 4 and is supplied to the central portion of the support plate 73. An exhaust port 75 is formed so that the pressure reducing means 8, the pressure increasing means 11 and the exhaust means 32 can be connected. The support plate 73 is provided with liquid supply means 9. The liquid supply means 9 has a support 76 attached to the lower surface of the support plate 73, and a rigid case 77 and a flexible / stretchable liquid storage bag 78 are attached to the inside of the support 76. A pump 79 is connected via a valve 80 to a hollow portion formed between the inner periphery and the outer periphery of the liquid storage bag 78. The liquid supply means 9 supplies air to the hollow portion using the pump 79 to pressurize and contract the liquid storage bag 78 from the outside, so that the liquid stored in the liquid storage bag 78 is hollowed out from the lower end of the bamboo cylinder 4. Parts can be supplied. This liquid supply means 9 can also accurately supply a predetermined amount of liquid stored in advance in the liquid storage bag 78 to the hollow portion of the bamboo cylinder 4.

  In the second to fourth embodiments, one end (for example, the upper end) of the bamboo cylinder 4 is connected to the decompression means 8 and the other end (for example, the lower end) of the bamboo cylinder 4 is connected to the sealing means 6 (liquid supply). Connected to means 9). Then, after sucking from one end portion of the bamboo tube 4 by the decompression means 8 to decompress the hollow portion of the bamboo tube 4, the other end of the bamboo tube 4 is turned into a liquid having a pressure higher than the pressure of the hollow portion of the bamboo tube 4 by the sealing means 6. The liquid is sealed in the hollow part of the bamboo cylinder 4 from the other end part of the bamboo cylinder 4 by making the part immersed. As shown in FIGS. 3 and 4, the bamboo cylinder 4 is chamfered (C surface) with an acute angle (inclined surface) inside the end (upper end) on the intake side, and the end ( The lower end portion may be chamfered (R surface) in an arc shape (semicircular arc surface shape) so that intake and liquid supply can be performed smoothly.

  Further, the liquid supply means 9 is not limited to the configuration in which the liquid is supplied from the liquid storage tank 22 opened to the atmosphere. For example, as shown in FIGS. 5 (a), (b), and (c), The liquid supply means 9 according to the seventh embodiment can be configured to be able to supply liquid to the sealing means 6.

  In the liquid supply means 9 according to the fifth embodiment shown in FIG. 5 (a), a liquid storage bag having flexibility such as a plastic bag at the liquid supply port (for example, the suction / discharge liquid port 46) of the sealing means 6 is used. 47 is connected via a valve 48 so that the liquid is discharged from the liquid storage bag 47 to the sealing means 6. Further, in the liquid supply means 9 according to the sixth embodiment shown in FIG. 5B, the liquid storage container 49 such as a drip container suspended upward is connected to the liquid supply port (for example, the suction / discharge liquid port 46 of the sealing means 6). Etc.) through a valve 50 so that the liquid flows down from the liquid storage container 49 to the sealing means 6. Further, in the liquid supply means 9 according to the seventh embodiment shown in FIG. 5C, a liquid storage bag 51 such as a cubitner is connected to a liquid supply port (for example, the suction / discharge liquid port 46) of the sealing means 6 with a valve 52. A pressure pump 54 (comprising a piston 56 coupled to a cylinder 55) with two check valves 53 sandwiched between the liquid storage bag 51 and the valve 52, and the pressure pump 54 Thus, the liquid is pumped to the sealing means 6.

  As described above, in the bamboo cylinder sealing device 5 that executes the bamboo cylinder sealing method and the bamboo cylinder sealing method, the hollow portion 3 of the bamboo cylinder 4 is reduced in pressure after the hollow portion 3 of the bamboo cylinder 4 is decompressed. The liquid is sealed in the hollow portion 3 of the bamboo cylinder 4 by immersing the end of the bamboo cylinder 4 in a liquid having a pressure higher than the pressure.

  Therefore, in the bamboo cylinder sealing method having the above-described configuration, the liquid is satisfactorily sealed in the hollow part 3 of the bamboo cylinder 4 in a short time due to the difference between the pressure of the hollow part 3 of the bamboo cylinder 4 and the pressure of the liquid while suppressing deterioration of the liquid. be able to.

  Moreover, in the said bamboo cylinder sealing liquid method, before setting the hollow part 3 of the bamboo cylinder 4 to the state which pressure-reduced, it becomes the structure which heats the bamboo cylinder 4. FIG.

  Therefore, in the bamboo cylinder sealing method having the above-described configuration, the bamboo cylinder 4 can be sterilized and hygiene can be improved, and the vascular bundle of the bamboo cylinder 4 can be expanded in advance. Since the liquid can flow from the vascular bundle into the hollow part 3 even when the part 3 is decompressed, the liquid can be sealed in the hollow part 3 of the bamboo cylinder 4 in a shorter time.

  Moreover, in the said bamboo cylinder sealing liquid method, after sealing the liquid in the hollow part 3 of the bamboo cylinder 4, it has the structure which seals the both end surfaces of the bamboo cylinder 4. FIG.

  Therefore, in the bamboo cylinder sealing method having the above-described configuration, it is possible to prevent the liquid enclosed in the hollow portion 3 of the bamboo cylinder 4 from leaking, and to prevent the occurrence of mold and decay due to the leakage of the liquid.

DESCRIPTION OF SYMBOLS 1 Bamboo 2 Section 3 Hollow part 4 Bamboo cylinder 5 Bamboo cylinder sealing device 6 Sealing means 7 Container 8 Depressurization means 9 Liquid supply means
10 Sealant supply means 11 Pressure increase means 12 Discharge means
13 Bottom plate 14 Weight 15 Decompression meter
16 Pressure gauge 17, 18 Valve 19 Heater
20 Suction pump 21,23 Valve 22 Liquid storage tank
24,26 Filter 25 Valve 27 Meter
28 Sealant supply source 29, 31 Valve 30 Pressure pump
32 Exhaust means 33 Drain means 34,36 Drain
35,37 Valve 38 Base 39 Screw post
40 Upper holder 41 Handle 42 Lower holder
43,45 Packing 44 Air intake / exhaust port 46 Air intake / exhaust fluid port
47 Liquid storage bag 48, 50, 52 Valve 49 Liquid storage container
51 Liquid storage bag 53 Check valve 54 Pressure pump
55 Cylinder 56 Piston 57 Base
58 Air cylinder 59 Support frame 60 Screw support
61 Press plate 62 Holder 63 Outer cylinder
64 Sealing material 65, 71 Pump 66, 72 Valve
67 Packing 68 Air supply / exhaust port 69 Tube
70 Liquid storage bag 73 Support plate 74 Packing
75 Air supply / exhaust port 76 Support body 77 Case
78 Liquid storage bag 79 Pump 80 Valve

Claims (4)

In a bamboo cylinder sealing method of enclosing a liquid in a bamboo cylinder having a hollow portion formed between bamboo nodes,
The bamboo tube is heated to expand the vascular bundle, and after the hollow portion of the bamboo tube is decompressed, the end of the bamboo tube is immersed in a liquid having a pressure higher than the pressure of the hollow portion of the bamboo cylinder. Thus, a liquid is sealed in the hollow portion of the bamboo tube from the vascular bundle .   The bamboo cylinder sealing method according to claim 1, wherein the bamboo cylinder is heated before the hollow portion of the bamboo cylinder is decompressed.   The method for sealing a bamboo cylinder according to claim 1 or 2, wherein after the liquid is sealed in the hollow portion of the bamboo cylinder, both end faces of the bamboo cylinder are sealed. In a bamboo cylinder sealing device that encloses a liquid in a bamboo cylinder having a hollow portion formed between bamboo nodes,
Depressurizing means for depressurizing the hollow part of the bamboo tube by sucking from one end part of the bamboo tube in a state where the vascular bundle is expanded by heating, and immersing the other end part of the bamboo tube in a liquid having a pressure higher than the pressure of the hollow part of the bamboo tube A bamboo cylinder sealing device comprising: a sealing means for enclosing a liquid from the vascular bundle at the other end of the bamboo cylinder into a hollow part of the bamboo cylinder when the state is made to be in a state of being made.

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