JP3045919B2 - Manufacturing method of tubular products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a tubular product having a tubular body and an attached body attached to the inner surface of the tubular body. This tubular product is suitable as a damping member and a damping structural material.

[0002]

2. Description of the Related Art Conventionally, a tubular body has been frequently used as a support for a mechanical member or a structure, or a shaft for power transmission or the like. This is because the tubular body can have high rigidity for a small weight, and thus the use of the tubular body can reduce the weight of the columns and shafts. However, the columns and shafts resonate in response to vibration of the machine or the like, amplify the vibration of the machine or the like, and easily generate noise. Therefore, noise countermeasures are required to prevent noise pollution and to improve the working environment. However, most of these columns and shafts are mechanically and firmly connected to a machine or the like in most cases. That is, in many cases, it is mechanically impossible to connect a machine or the like to the column or the shaft via the vibration insulator.

Generally, the principle of preventing vibration is as follows:
(1) Weight increase or rigidity enhancement, (2) Avoidance of resonance, (3)
There are only three principles: vibration damping. However, when a tubular body is used as a support or a shaft, the resonance may occur even if the weight of the support or the shaft is increased by thickening the tubular body or using a solid rod instead of the tubular body. Although a change in frequency is seen, (3) no damping effect of vibration is seen. for that reason,
Conventionally, (2) avoidance of resonance has been performed. That is, the resonance frequency of the tubular body is shifted to a point different from the frequency of the vibration source by attaching a heavy object to a specific portion of the tubular body to locally increase the weight, thereby avoiding vibration amplification due to resonance. Was. However, according to this method, an effect is obtained only when the frequency band of the vibration source is narrow, and it is impossible to shift the resonance point out of the audible sound range. Therefore, a practical soundproof effect cannot always be exhibited.

On the other hand, (3) many means are known in the case of steel plates as means for imparting a function of absorbing vibration energy to a structural member itself for the purpose of damping vibration. For example, Japanese Patent Publication No. 39-12451 and Japanese Patent Publication No. 45-34703 disclose a damping steel sheet in which a viscoelastic body having a high mechanical loss rate is sandwiched between two steel sheets. If such a sandwich-type structure is applied to a tubular body as it is, a vibration damping tube having a viscoelastic substance sandwiched between an inner tubular body and an outer tubular body can be obtained. However, unlike such a steel plate, it is not possible to obtain high damping performance.

Therefore, the present inventors have previously described Japanese Patent Publication No. Sho 63-9
Japanese Patent Publication No. 978 discloses that when a viscoelastic body is filled in the entire inside of a tubular article, a remarkable vibration damping effect is exhibited. However, this method has sufficient damping properties,
Since the entire viscoelastic body is filled with the viscoelastic body, the weight increases as a whole. Therefore, in order to cope with an increase in weight, the horsepower of a drive source such as a motor must often be increased, and the increase in weight makes transport and movement difficult.

[0006]

Therefore, the present inventor has made the present inventors attach a viscoelastic layer to the inner wall of the tubular body, and at the same time, partially reduce the thickness of the viscoelastic layer, or further reduce the thickness. It has been disclosed that when the viscoelastic layer is completely removed, the weight can be reduced and, at the same time, excellent vibration damping properties can be obtained.

However, it has been found again that the production of such tubular products presents a very difficult problem. That is, when manufacturing this tubular product, an adhesive material made entirely of an adhesive material, a material in which an adhesive is applied to the surface of a tape, or the like is prepared, and these attached bodies are placed at predetermined positions inside the tubular body. It needs to be fixed, adhered and adhered.
However, in the above technique, the size of the attached body is often much smaller than the size of the tubular body. Then, the inventor puts the attached body through the opening of the tubular body, inclines the tubular body, slides the attached body along the inner wall surface of the tubular body, and moves the attached body. Next, the surface of the attached body was pressed with a stick or the like, and the attached body was attached to the inner surface of the tubular body.

However, the inside of the tubular body is, of course, completely invisible from the outside. For this reason, it is not known exactly where the attached body is located in the tubular body. Therefore, it has been found that the adhered substance adheres to places other than the predetermined predetermined places, resulting in frequent occurrence of defective products. If the number of defective products occurs frequently at the manufacturing stage, the manufacturing cost will increase significantly. Therefore, it is necessary to prevent the generation of such defective products.

For this reason, the present inventor uses an adhesive having a special reusable adhesive layer as an adherent, and if the adhesive adheres to a portion other than the planned one, the adhesive is once adhered. The material was peeled from the inner surface of the tubular body, and an attempt was made to reattach the adhesive. Of course, the adhesive base was reinforced to prevent the adhesive from being damaged when the adhesive was peeled off. However, since the adhesive once firmly adhered to the tubular body was forcibly peeled off, defective products were frequently generated in the adhesive. Also, check the position where the adhesive is applied,
The number of steps required for attachment, such as the peeling step and the step of attaching the adhesive material again, was extremely large, and waste was increased.

[0010] In addition, a problem occurs in the step of attaching the adhered body to the tubular body. That is, the present inventor:
The adhered body was attached to the inner surface of the tubular body by pressing the adhered body against the tubular body with a stick or the like. Therefore, pressure could not be applied uniformly over the entire length of the contact portion between the rod and the adherend. As a result, the adhered body was peeled off, or a part of the adhered body was peeled off, often failing to exhibit the vibration damping function. Moreover, when the tubular body is thin, or when the material of the tubular body is plastic, glass, or porcelain, excessive local stress is easily applied to a part of the tubular body, and the tubular body is damaged, Sometimes deformed.

The shape of the tubular body is not limited to an annular shape, and the shape and dimensions of the cross section of the tubular body may change in the longitudinal direction of the tubular body. For example, the central part of the tubular body may be bulged like a pot, or one end of the tubular body may be spread like a trumpet. When attaching the adherend inside such a deformed tubular body, even if the rod is inserted into the tubular body,
Almost only one point of the bar can be touched. Accordingly, it has been difficult to produce such a tubular product.

SUMMARY OF THE INVENTION It is an object of the present invention to automatically perform an attaching operation without requiring any manual operation and to accurately control the attaching position of the attached object in an operation of attaching the attached object to a predetermined position on the inner surface of the tubular body. It is intended to prevent the occurrence of misalignment and poor adhesion of the adhesion position.

[0013]

According to a first aspect of the present invention, there is provided a method of manufacturing a tubular article having a tubular body and an attached body attached to a predetermined position on an inner surface of the tubular body.
That is, it has a holding surface provided with an air suction hole, can hold the attached body on the holding surface by sucking air from the air suction hole, and stops sucking air from the air suction hole. An adhering body holding device including an adhering body holding member configured to be able to release the holding of the adhering body by using the air bag attached to a side opposite to a holding surface of the holding member is used. Then, the holding member is inserted into the tubular body in a state where the attached body is held on the holding surface of the holding member, and when the holding member and the tubular body are located at a predetermined relative position, the holding of the attached body is released and the attached body is released. The body is dropped and temporarily fixed at a predetermined position on the inner surface of the tubular body, and then the airbag is inflated to press the adhered body against the inner surface of the tubular body by the holding surface of the holding member to be pressed. In the second invention, the holding surface having the air suction hole is provided, the attached body can be held on the holding surface by sucking air from the air suction hole, and the air is sucked from the air suction hole. And an upper elastic rotating body provided on the distal end side of the holding member, and an upper elastic rotating body provided on the distal end side of the holding member. And a lower elastic rotating body. Then, while holding the attached body on the holding surface of the holding member, the tubular body is moved in a direction such that the holding member is inserted into the tubular body, and when the holding member and the tubular body are located at predetermined relative positions. The holding of the attached body is released, the attached body is dropped and temporarily fixed to a predetermined position on the inner surface of the tubular body, and then the upper elastic rotating body is brought into contact with the inner surface of the tubular body by moving the tubular body. At the same time as the traveling, the adhered body is pressed against the tubular body by traveling while pressing the lower elastic rotating body against the adhered body.

[0014]

According to the present invention, with the attached body held by the attached body holding member, the attached body holding member is inserted into the tubular body, the holding of the attached body is released, and the inner surface of the tubular body is fixed. Attachment is temporarily fixed in position. Therefore, if only the positional relationship between the adhered body holding member and the tubular body is accurately measured, the adhered body can be accurately adhered to any predetermined position in the inner space of the tubular body.

[0015] As a result, it is possible to prevent the occurrence of defective products due to the misalignment of the attachment position of the attached body. In addition, a step of peeling off the adhered body from the tubular body and attaching the tubular body again is unnecessary, and there is no need to reinforce the tubular body.

In addition, unlike the manual operation as in the above-described conventional method, such a method can be executed by mechanically controlling the relative positional relationship and operation of the attachment holding member and the tubular body. . Therefore, automation can be easily performed, and productivity is greatly improved.

In particular, when a tubular body having a long dimension is used as the tubular body or when the shape and dimensions of the cross section of the tubular body change in the longitudinal direction of the tubular body, the tubular body is The inside is almost invisible from the outside. ADVANTAGE OF THE INVENTION According to this invention, an attachment can be made to adhere | attach to the invisible part in a tubular body exactly.

By sucking the air inside the attached body holding member, the attached body can be held at a predetermined position on the surface of the attached body holding member, and the holding of the attached body can be released by stopping the suction of the air. Therefore, by adjusting the suction of air with a valve, it is possible to very easily select between holding and releasing of the attached body.

An air bag is integrated with the attachment holding member, and the attachment is temporarily fixed at a predetermined position on the inner surface of the tubular body, and then the air bag is inflated to press the holding surface of the holding member against the attachment. As a result, pressure can be applied uniformly over the entire length of the adherend. As a result, the adhered body does not peel off or a part of the adhered body does not peel off, thereby preventing the occurrence of defective products.

Further, even when the tubular body is thin or the material of the tubular body is plastic, glass, or ceramic, there is no possibility that an excessive stress is locally applied to only a part of the tubular body. The body can be prevented from being damaged or deformed.

Therefore, such an irregularly shaped tubular product can be easily manufactured, and can be uniformly adhered to the tubular body over the entire surface of the adhered body. Defective products do not occur.

Further, the upper elastic rotating body is temporarily fixed at a predetermined position on the inner surface of the tubular body, and then is moved by moving the tubular body so that the upper elastic rotating body is brought into contact with the inner surface of the tubular body. The attached body is pressed against the tubular body by running the body while pressing the attached body. Therefore, the pressure can be easily and uniformly applied over the entire length of the attached body.

When the shape and size of the cross section of the tubular body change in the longitudinal direction of the tubular body, when the attached body is moved relatively to the rotating body,
Since the rotating body follows the shape of the inner surface of the tubular body,
The pressing force can be applied uniformly over the entire surface of the attached body.

Even when the cross-sectional shape and dimensions of the tubular body are constant in the longitudinal direction of the tubular body, irregularities, irregularities, and undulations are formed on the inner surface of the tubular body. Existing. However, in particular, by providing an elastic member at least in a portion of the rotating body that comes into contact with the attached body, the rotating body finely follows such fine irregularities, irregularities, and undulations. Therefore, the adhered body to the tubular body can be made even more reliable.

Next, the tubular body will be described. In the present invention, the shape and dimensions of the cross section of the tubular body may be constant in the longitudinal direction of the tubular body or may be varied. As long as the shape and dimensions of the cross section of the tubular body are constant in the longitudinal direction of the tubular body, the shape of the cross section can be variously changed, such as a triangle, a square, a rhombus, and a hexagon. The shape and dimensions of the cross section of the tubular body change in the longitudinal direction of the tubular body, for example, when the central part of the tubular body is bulging like a pot, or at one end of the tubular body. The case where a part is spreading can be illustrated.

The tubular body is for ensuring the rigidity of the tubular product. The material of the tubular body is metal, ceramics,
It may be an inorganic substance such as glass, an organic substance such as plastic, wood, paper or the like, or a composite of the above-mentioned materials. Metals include steel, aluminum, copper,
Lead and alloys thereof. Ceramics include pottery, porcelain, gypsum, cement and the like.

Examples of the plastic include vinyl chloride, acryl, methacryl, phenol, polypropylene, polyethylene and the like. Any wood material may be used as long as it has a hollow shape in the center and is tubular. Examples of paper include a paper tube and a paper tube obtained by impregnating a paper tube with a resin or the like to provide rigidity. The outer peripheral surface and / or the inner peripheral surface of these tubular bodies may be coated or plated to impart aesthetic appearance and durability.

The term "adhering body" as used in the present invention refers to an adhering body having an adhering action on the inner surface of a tubular body. There are a case where the entirety of the attached body is made of the same material, and a case where an attached layer is provided for a non-adhesive material. When the tubular product is a vibration damping material, the following is preferable as the attached body. (A) A viscoelastic body that is entirely integrated. (B) An attached body in which a layer made of a liquid reactive viscoelastic material is fixed to a support material.

A viscoelastic material which is particularly preferable as a vibration damping material is exemplified. A viscoelastic body is a general term for a substance that exhibits a phenomenon in which elastic deformation and viscous flow are superimposed. The conditions required for this viscoelastic body are that it has a high vibration damping effect, it does not deteriorate for a long time,
It does not flow below ° C and is as light as possible. However, unlike generally used viscoelastic bodies, there is no need for various types of durability, such as followability to a large amount of expansion / contraction displacement, resistance to oxidation deterioration and weather resistance. Accordingly, a wide range of viscoelastic materials as described below can be used.

On the other hand, conventionally, a viscoelastic body having a low rigidity has been widely used as a material which easily exerts a vibration damping performance. However, this is not always the case, and even a viscoelastic body having high rigidity has a sufficient vibration damping action.

From the above viewpoints, an optimum polymer composition can be obtained by using many polymer materials alone or in combination depending on the use conditions of the vibration damping member. Next, the viscoelastic body will be specifically exemplified. The viscoelastic bodies suitably used in the present invention can be classified into the following five. That is, (1) a non-vulcanized rubber viscoelastic body, (2) a block polymer viscoelastic body, (3) a thermoplastic resin viscoelastic body, (4) a liquid reaction-curable viscoelastic body, (5) a liquid An oil-absorbing solidified viscoelastic body.

The (1) non-vulcanized rubber-based viscoelastic body, (2) the block polymer-based viscoelastic body, and (3) the thermoplastic resin-based viscoelastic body, wherein the above-mentioned (A) is an integral viscoelastic body. It is preferable to use as. Each viscoelastic body will be described.

(1) Non-vulcanized rubber viscoelastic material: butyl rubber, butyl reclaimed rubber, halogenated butyl rubber, polyisobutylene, isoprene, chloroprene, ethylene propylene copolymer, butadiene, styrene butadiene copolymer, acrylonitrile copolymer Use rubber raw materials such as natural rubber, acrylic rubber, epichlorohydrin rubber, silicon rubber, and fluorine rubber. Two or more types may be used in combination.

[0034] These rubber raw materials are appropriately blended with a plasticizer, a filler, a tackifying resin, a bituminous substance, and the like to prepare a rubber composition. In particular, when using a butyl rubber system, the use of regenerated butyl rubber recycled from automobile tubes or industrial waste of butyl rubber can improve cold flow properties and introduce a vulcanized rubber gel component into the system. It has been found that the effect of improving the fluidity at C or lower is high and suitable.

When the operating temperature range is near room temperature, bituminous substances, tackifying resins, other resins and the like and industrial wastes thereof are used in combination in order to make the glass transition point of the viscoelastic body particularly close to room temperature. It is desirable to do. In this case, generally,
When a resin having good compatibility is used, the maximum value of the vibration damping characteristics can be obtained in a wide temperature range. However, even if a resin with poor compatibility is mixed, the maximum value is divided into a plurality, but the peak value of the vibration damping performance is somewhat increased by devising the mixing surface to bring the temperature regions having the maximum values closer to each other. Even if it has to be sacrificed, a viscoelastic body that can cover a wider temperature range can be obtained.

In a non-vulcanized rubber-based viscoelastic body, the rigidity of the viscoelastic body itself tends to be low. For this reason, when applied to the inner wall of a tubular body, the resonance frequency often shifts to a lower frequency. Here, by using another resin in combination as described above, the rigidity of the viscoelastic body can be increased and the resonance frequency can be shifted to a higher frequency side.

(2) Block polymer viscoelastic material: A polymer having a soft segment and a hard segment in one molecule is used as a main polymer. Soft segments include SIS, SBS, SEBS, thermoplastic urethane, thermoplastic polyester, olefin elastomer, polyamide elastomer, styrene elastomer, vinyl chloride elastomer, chlorinated ethylene copolymer, syndiotactic 1,2-polybutadiene, etc. There is.

A plasticizer, a filler, a tackifier resin and the like are appropriately blended with the above main polymer to obtain a composition for a block polymer. (1) As in the case of the non-vulcanized rubber-based viscoelastic body, taking into consideration the glass transition point and the like, other resins and bituminous substances,
The damping properties can be adjusted by adding waxes.

(3) Thermoplastic resin-based viscoelastic materials: ethylene-vinyl acetate copolymer, vinyl acetate resin, polyvinyl butyral, polyethylene, polypropylene, saturated polyester, isobutylene-maleic anhydride copolymer resin as main polymer; Thermoplastic resins such as AAS resin, AES resin, ethylene-vinyl chloride copolymer resin, vinyl chloride resin and phenoxy resin are used alone or in combination. A plasticizer, a filler, a tackifier resin and the like are appropriately blended with the main polymer. As described above, the vibration damping characteristics can be adjusted by adding other resins, bituminous substances, and waxes in consideration of the glass transition point and the like.

Next, (4) a liquid reaction-curable viscoelastic body,
(5) The liquid oil-absorbing solidified viscoelastic body is the "liquid reactive viscoelastic material" in the above-mentioned "(B) attached body in which a layer made of a liquid reactive viscoelastic material is fixed to the support material". Elastic material ".

(4) Liquid reaction-curable viscoelastic body: Examples of the liquid reaction-curable viscoelastic body include polybutadiene, chloroprene, isoprene, styrene butadiene, acrylonitrile butadiene, aromatic short-chain diols and other main chain skeletons.
One having two or more terminal reactive groups per molecule; One having a double bond in the main chain skeleton as a cross-linking point; Combination thereof; High rubber elasticity such as polysulfide, urethane, silicon, modified silicon; Highly rigid resins such as epoxy resins, phenolic resins, unsaturated polyester resins, and furan resins. Table 1 shows combinations of the reactive groups of the main agent and the curing agent for obtaining the liquid reaction-curable viscoelastic body.

[0042]

[Table 1]

(5) Liquid oil-absorbing solidified viscoelasticity:
It has the property of forming viscoelasticity after oil absorption,
Norbornene resin is a typical example. For example, it can be obtained by blending a norbornene resin with a plasticizer, a filler, a tackifier resin, and the like. In the same manner as described above, a bituminous material, another resin or an additive may be blended to provide a vibration damping property suitable for the service conditions of the viscoelastic body. Further, a crushed product (waste) of plastic or rubber can be blended, and waste oil that has become industrial waste can be used as a plasticizer component.

Next, a description will be given of a compounding material to be mixed with the viscoelastic body to adjust the vibration damping property and stabilize the molding operation.

A plasticizer is a substance which plays a role of a lubricant between polymers, assists fluidity between molecules, and reduces plasticity between molecules to provide plasticity. Specific examples of the plasticizer include petroleum softeners including naphthenic oils, aromatic oils, and paraffin oils; animal and vegetable oils such as castor oil, soybean oil, and pine tar; phthalate esters such as DBP and DOP; An aliphatic dibasic acid ester composed of DOA, DBS, etc .; a trimellitate ester composed of TOTM, TDTM, etc .; an epoxy type composed of epoxidized fatty acid monoester, epoxidized linseed oil, etc .; phosphorus composed of TCP, TOP, etc. Acid ester type; ether type consisting of dibutyl carbitol adipate, triethylene glycol di-2-ethyl butyrate, etc .; polyester type consisting of adipic acid polyester, azelaic acid polyester, etc .; made of chlorinated fatty acid ester, chlorinated paraffin, etc. Chlorinated plasticizers. Further, polybutene or liquid rubber containing no terminal reactive group can be used as a plasticizer. Plasticizers can be used alone or in combination.

The filler is effective in improving vibration damping, specific gravity, weight reduction, heat conductivity, and flame retardancy, and those generally used in rubber and paint related industries can be used. Specific examples thereof include scaly inorganic powders such as mica, graphite, hillite, talc, and clay; high specific gravity and heat conductive fillers such as ferrite, zinc white, iron oxide, metal powder, barium sulfate, and lithopone; General-purpose fillers such as calcium, finely divided silica, carbon, and magnesium carbonate; flame-retardant fillers such as almonium trioxide, borax, and aluminum hydroxide;
Lightening fillers such as glass hollow powder, pearlite, resin foam powder, rubber foam powder, resin powder, rubber powder, fiber powder, and paper powder.

The tackifying resin has an effect of adhering to the inner wall of the tubular body and an effect of improving the vibration damping property. Specific examples thereof include natural resin, rosin, modified rosin, derivatives of rosin and modified rosin, polyterpene-based resin, modified terpene, aliphatic hydrocarbon resin, cyclopentadiene-based resin, aromatic petroleum resin: phenol resin, Alkylphenol-acetylene resin, xylene resin, cumarone-
There are indene resin, vinyltoluene-α-methylstyrene copolymer and the like, which can be used alone or in combination.

The bituminous substance has an effect of adhering to the inner wall of the tubular body and an effect of improving the vibration damping property. As a specific example,
Straight asphalt, bron asphalt, tar, pitch. Other compounding agents include rust inhibitors, antioxidants, vulcanizing agents, catalysts, surfactants, and the like, and can be added as needed.

The present invention will be described in further detail with reference to the drawings. FIG. 1 is a front view schematically showing a state in which the attached body 7 is held by the attached body holding device 1A, and FIG. 2 is a schematic view showing a state in which the attached body holding member 4 is inserted into the tubular body 14. FIG. FIG. 3 is a cross-sectional view illustrating a positional relationship between the airbag 5 and the attached body holding member 4.

In the attached body holding device 7, the column 3 is provided on the upper side of the base 2, and the attached body holding member 4 extends from the column 3 in the horizontal direction. The attachment holding member 4 is configured to be rotatable by a driving device (not shown). As shown in FIG. 3, the shape of the attached body holding member 4 is substantially a quadrangular prism shape, and a cavity 4 a is provided inside the attached body holding member 4. The cavity 4a is continuous with an air suction device (not shown) so that air in the cavity can be sucked.

The lower side of the attached body holding member 4 in FIG.
The airbag 5 is integrated. As shown in FIG. 3, the bellows 5a of the airbag 5 is configured to be able to expand and contract in the direction of arrow A. On the other side of the airbag 5,
A holding surface 4b is provided. Many fine air suction holes 6 are provided on the holding surface 4b side. In the present embodiment, the attachment 7 includes a support 8 and a viscoelastic layer 9. The viscoelastic body layer 9 is provided on the side of the attachment surface 8a of the support 8. The non-adhesive surface 8b of the adhered body 7 is
To the holding surface 4b by suction of air.

Next, the attachment holding member 4 is rotated by about 180 ° so that the holding surface 4b faces downward as shown in FIG. Next, the tubular body 1 is driven by a driving device (not shown).
4 is moved in the direction of arrow B, and the attached body holding member 4 is inserted into the tubular body 14. At this time, by setting the relative positional relationship between the tubular body 14 and the attached body holding member 4, the attached body 7 is positioned at a predetermined position in the tubular body 14.

In the above, after the attached body holding member 4 is inserted into the tubular body 14, the attached body holding member 4 can be rotated. Alternatively, the tubular body 14 can be fixed at a fixed position, and the attached body holding member 4 can be moved in the direction opposite to the arrow B.

Next, when the suction of air is stopped, the holding of the attached body 7 on the holding surface 4b is released, and as a result, the attached body 7 is temporarily fixed to the inner side surface 14a. Air bag 5
Is expanded in the direction of arrow A, and the attached body holding member 4 is pressed downward in FIG. 2, and the attached body 7 is pressed toward the inner side surface 14 a by the attached body holding member 4.
As a result, the entire surface of the attached body 7 is pressed by a uniform pressing force, and the viscoelastic layer 9 of the attached body 7 is
A is uniformly and firmly attached to a.

FIG. 4 is a front view schematically showing a state in which the adhered body 7 is held in the adhered body holding device 1B.
FIG. 4 is a partial cross-sectional view schematically showing a state in which the attachment holding member 4 is inserted into the tubular body 14. FIG. 6 is a partial cross-sectional view schematically showing a state in which the rotating body 11 is pressing the attached body 7.

As shown in FIG. 3, the attachment holding member 4 has a substantially quadrangular prism shape, and a cavity 4 a is provided inside the attachment holding member 4. The cavity 4a is continuous with an air suction device (not shown) so that air in the cavity can be sucked. In FIG. 4, a holding surface 4 b is provided below the attachment holding member 4. Many fine air suction holes 6 are provided on the holding surface 4b side.

In this embodiment, a metal frame 10, preferably made of metal, is provided at the tip of the holding member 4, and the rotating bodies 11 and 12 are fixed to the frame 10. . The non-adhering surface 8b of the attached body 7 is fixed to the holding surface 4b, and is sucked to the holding surface 4b by suction of air.

Next, as shown in FIG. 5, the tubular body 14 is moved in the direction of arrow B by a driving device (not shown),
The attachment holding member 4 is inserted into the tubular body 14. On this occasion,
By setting the relative positional relationship between the tubular body 14 and the attached body holding member 4, the attached body 7 is positioned at a predetermined position in the tubular body 14.

Next, when the suction of the air is stopped, the holding of the attached body 7 on the holding surface 4b is released, and as a result, the attached body 7 drops and is temporarily fixed to the inner side surface 14a.

Next, as shown in FIG. 6, the tubular body 14 is moved in the direction of arrow C by a driving device (not shown). At this time, in the present embodiment, the rotating bodies 11 and 12
Are set such that both of the rotating bodies 11 and 12 just contact the inner side surface 14a.

As a result, as shown in FIG. 6, even when the lower rotating body 11 comes into contact with the attached body 7, the upper rotating body 12 is still in contact with the inner side surface 14a. Therefore, a predetermined pressing force is applied to the attached body 7 from the rotating body 11. In this case, it is necessary to appropriately absorb the stress generated due to the thickness of the attached body 7 by forming the rotating bodies 11 and 12 by an elastic member. If the rotating bodies 11 and 12 are not elastically deformed at all, excessive stress is applied to the tubular body 14 and the attached body 7 when coming into contact with the attached body 7. As such an elastic body, a pneumatic tire, rubber, or resin foam is preferable.

As a result, the entire surface of the attached body 7 is pressed by a uniform pressing force, and the viscoelastic layer 9 of the attached body 7 is pressed.
Adheres uniformly and firmly to the inner surface 14a.

[0063]

As described above, according to the present invention, in the operation of attaching the adhered body to a predetermined position on the inner surface of the tubular body, the attaching operation is automatically performed without requiring any manual operation, and It is possible to accurately control the position where the body is attached, and to prevent the attachment position from being out of order or causing poor attachment.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing a state in which an attached body 7 is held on an attached body holding device 1A.

FIG. 2 is a partial cross-sectional view schematically showing a state where an attachment holding member 4 is inserted into a tubular body 14.

FIG. 3 is a cross-sectional view showing a positional relationship between an airbag 5 and an attached body holding member 4.

FIG. 4 is a front view schematically showing a state in which the attached body 7 is held by the attached body holding device 1B.

FIG. 5 is a partial cross-sectional view schematically showing a state in which the attachment holding member 4 is inserted into the tubular product 14.

FIG. 6 is a partial cross-sectional view schematically showing a state in which a rotating body 11 is pressing an attachment 7;

[Explanation of symbols]

 Reference Signs List 1A, 1B attached body holding device 2 base 3 support 4 attached body holding member 4a cavity 4b holding surface 5 air bag 6 air suction hole 7 attached body 8 support 9 viscoelastic body layer 10 frame 11, 12 rotating body 14 tubular body 14a Inner surface A The direction in which the airbag inflates B, C The moving direction of the tubular body 14

Continuation of the front page (56) References JP-A-6-15738 (JP, A) JP-A-5-18043 (JP, A) JP-A-62-242521 (JP, A) JP-A-2-255460 (JP) , A) JP-A-61-121929 (JP, A) JP-A-2-38790 (JP, A) JP-A-58-39848 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB Name) B29C 65/00-65/78 B29C 63/00-63/48 B32B 1/06-1/08 E04C 3/04 F16S 1/00-5/00 F16L 9/00-9/22

Claims (2)

(57) [Claims] 1. A tubular body and a predetermined position on an inner surface of the tubular body.
A method of manufacturing a tubular product having a haptens attached to location, has a holding surface air suction hole is provided, wherein
The attached body can be held on the holding surface by sucking air from an air suction hole , and the air from the air suction hole can be held.
And attachment member holder that is configured to release the holding of the attachment body by stopping the suction of air, the deposited
Attached to the opposite side of the holding surface of the body holding member
Using the attachment member holding device and a air bag, the attachment member holder is inserted into the tubular body while holding the attachment member to the holding surface of the attachment member holder,
The attached body holding member and the tubular body are at predetermined relative positions.
The attachment and release the holding of the attachment body was located
By dropping the body and temporarily fixing it at a predetermined position on the inner surface of the tubular body, and then inflating the airbag,
A method for manufacturing a tubular product, wherein the attachment body is pressed against the inner surface of the tubular body by pressing the attached body against the inner surface of the tubular body by the holding surface of the attached body holding member . 2. A tubular body and a predetermined position on an inner surface of the tubular body.
A method of manufacturing a tubular product having a haptens attached to location, has a holding surface air suction hole is provided, wherein
The attached body can be held on the holding surface by sucking air from an air suction hole , and the air from the air suction hole can be held.
And attachment member holder that is configured to release the holding of the attachment body by stopping the suction of air, the deposited
Upper elastic rotating body provided on the tip side of the body holding member
And a lower side provided on a tip side of the attached body holding member.
The attached body holding member is inserted into the tubular body while the attached body is held on the holding surface of the attached body holding member using an attached body holding device having an elastic rotating body.
The tubular body is moved in such a direction that
The holding member and the tubular body are located at predetermined relative positions.
It dropped the attachment member to release the holding of the attachment member in filtrate
Provisionally fixed at a predetermined position on the inner surface of the tubular body Te, then before
The upper elastic rotation by moving the tubular body
When the body is run while contacting the inner surface of the tubular body,
Sometimes the lower elastic rotating body is pressed against the attached body.
A method of manufacturing a tubular product , wherein the adhered body is pressed against the tubular body by running while being caused to move.