WO2015140923A1 - Method for manufacturing waterproof packing, and waterproof packing manufactured by same method - Google Patents
Method for manufacturing waterproof packing, and waterproof packing manufactured by same method Download PDFInfo
- Publication number
- WO2015140923A1 WO2015140923A1 PCT/JP2014/057325 JP2014057325W WO2015140923A1 WO 2015140923 A1 WO2015140923 A1 WO 2015140923A1 JP 2014057325 W JP2014057325 W JP 2014057325W WO 2015140923 A1 WO2015140923 A1 WO 2015140923A1
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- WIPO (PCT)
- Prior art keywords
- mold
- waterproof packing
- curable resin
- resin liquid
- ultraviolet curable
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/12—Making multilayered or multicoloured articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/20—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/22—Making multilayered or multicoloured articles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/108—Special methods for making a non-metallic packing
Definitions
- the present invention relates to a method for manufacturing a waterproof packing used for waterproofing various electric products and a waterproof packing manufactured by this method.
- waterproof packing made of synthetic resin for waterproofing.
- This waterproof packing made of synthetic resin for example, injects a liquid composed of two kinds of monomers into a groove-like gap formed between upper and lower molds, and mixes the mixture of the monomers formed by injection. Manufactured by a method of reacting and curing in a groove-like void (rim molding: Reaction InjectionoldMolding).
- the problem to be solved by the present invention is that the mold used in the method for manufacturing the waterproof packing is expensive, and the waterproof packing cannot be manufactured at a low cost.
- the present invention includes a step of filling an ultraviolet curable resin liquid in a mold groove formed on a mold surface of a mold, a step of irradiating the ultraviolet curable resin liquid in the mold groove with ultraviolet rays, And a step of taking out the waterproof packing obtained by irradiating the ultraviolet curable resin liquid with ultraviolet rays from the mold groove.
- the mold groove may be formed in the same plane or a curved surface, or may be formed in a surface having irregularities.
- the ultraviolet curable resin liquid in the mold groove may be irradiated with ultraviolet light while filling the mold groove with the ultraviolet curable resin liquid, or may be irradiated after filling.
- the mold surface of the mold is coated with a synthetic resin sheet in a state where the ultraviolet curable resin liquid in the mold groove of the mold is in contact with the synthetic resin sheet, and then the ultraviolet curable resin in the mold groove is cured.
- the resin liquid may be irradiated with ultraviolet rays.
- the waterproof packing manufacturing method of the present invention is a simple mold in which the mold used has a mold groove formed on the surface, so that the mold cost occupying the manufacturing cost of the waterproof packing can be kept low. Therefore, there is an advantage that the waterproof packing can be manufactured at low cost.
- the method of manufacturing the waterproof packing according to the present invention is a simple mold in which the mold used is simply a mold groove formed on the surface, the mold can be easily manufactured. There is an advantage that it is possible to easily cope with design changes.
- the method for manufacturing a waterproof packing according to the present invention does not require the opening and closing operation of the mold as in the case of rim molding, so that a complicated and precise mechanical mechanism is not required, and the equipment occupies the manufacturing cost of the waterproof packing. Therefore, there is an advantage that the waterproof packing can be manufactured at a low cost.
- the method for manufacturing a waterproof packing according to the present invention does not require injection of synthetic resin into a narrow space in the mold as in the case of rim molding, so that a complicated and precise mechanical mechanism is not required.
- the equipment cost occupying the manufacturing cost of the packing can be reduced at a low cost. Therefore, there is an advantage that the waterproof packing can be manufactured at low cost.
- the waterproof packing manufacturing method of the present invention can fill the ultraviolet curable resin liquid by dropping the ultraviolet curable resin liquid from the outside into a mold groove formed on the surface of the mold. Compared to the case of molding, the synthetic resin liquid can be easily and quickly filled in the mold, and therefore, there is an advantage that the waterproof packing can be manufactured with high productivity and at low cost.
- the method for manufacturing a waterproof packing according to the present invention cures the ultraviolet curable resin liquid by directly irradiating the ultraviolet curable resin liquid filled in the mold groove of the mold with ultraviolet rays.
- the synthetic resin liquid can be quickly cured, and therefore, there is an advantage that the waterproof packing can be manufactured with high productivity and at low cost.
- the waterproof packing manufacturing method of the present invention is for waterproofing in which a synthetic resin sheet is placed on a mold surface filled with an ultraviolet curable resin liquid in a mold groove and irradiated with ultraviolet rays and then retained by the synthetic resin sheet. Since the packing can be made, there is an advantage that the waterproof packing retained by the synthetic resin sheet can be easily made.
- FIG. 1 is a process diagram showing a method for manufacturing a waterproof packing according to an embodiment of the present invention.
- FIG. 2 is a perspective view showing an example of a mold used in the method for manufacturing a waterproof packing according to an embodiment of the present invention.
- 3 is a cross-sectional view taken along line AA in FIG.
- FIG. 4 is a process diagram showing a method for manufacturing a waterproof packing according to another embodiment of the present invention.
- FIG. 5 is an explanatory view showing a state in which the mold groove is filled with an ultraviolet curable resin liquid and then the mold surface of the mold is covered with a synthetic resin sheet and irradiated with ultraviolet rays.
- FIG. 6 is a cross-sectional view showing an example of an electrical product incorporating the waterproof packing according to the present invention.
- FIG. 1 is a process diagram showing a method for manufacturing a waterproof packing according to one embodiment of the present invention
- FIG. 2 is a perspective view showing an example of a mold used in the method for manufacturing a waterproof packing according to one embodiment of the present invention
- 3 is a cross-sectional view taken along the line AA in FIG.
- the waterproof packing manufacturing method includes, as shown in these drawings, a filling step 14 in which an ultraviolet curable resin liquid 16 is filled in a mold groove 12 formed on one surface of a mold 10, and a mold.
- An irradiation step 18 for irradiating the ultraviolet curable resin liquid 16 filled in the groove 12 with ultraviolet light, and a waterproof packing 20 obtained by irradiating the ultraviolet curable resin liquid 16 in the mold groove 12 with ultraviolet light are used as the mold groove 12.
- an extraction step 22 to be taken out from the inside.
- the mold groove 12 of the mold 10 may be formed in the same flat surface, or may be formed in a curved surface in consideration of the shape of the waterproof packing to be manufactured. However, it may be formed in a plane having irregularities or steps. Further, the timing of irradiating with ultraviolet rays may be such that after filling the ultraviolet curable resin liquid 16, the mold 10 is transported to the ultraviolet irradiating device and irradiated with ultraviolet rays, or the mold groove 12 of the mold 10 may be irradiated. The ultraviolet curable resin liquid 16 immediately after filling may be irradiated with ultraviolet rays while being filled with the ultraviolet curable resin liquid 16.
- a filling process 14 for filling the mold groove 12 of the mold 10 with the ultraviolet curable resin liquid 16 and the ultraviolet curable resin are described.
- a covering step 26 for covering the mold surface of the mold 10 with a synthetic resin sheet 24 may be provided between the irradiation step 18 for irradiating the liquid 16 with ultraviolet rays.
- the ultraviolet curable resin liquid 16 is crosslinked by ultraviolet rays, and at that time, the ultraviolet curable resin liquid 16 and the synthetic resin sheet 24 are also bonded by crosslinking, and as shown in FIG.
- the waterproof packing 20 supported by the resin sheet 24 can be manufactured.
- the waterproof packing manufactured in this way is used by being incorporated in the electric product 26 as shown in FIG. Since the waterproof packing 20 has good shape retention, it is easy to install in the electrical product 26.
- the present invention can also be applied to the use of manufacturing a synthetic resin molded product other than the waterproof packing at low cost by forming a concave portion having an arbitrary shape other than the groove on the mold surface.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Gasket Seals (AREA)
Abstract
In the present invention, by manufacturing a waterproof packing by a simple method, the waterproof packing is provided at as low a cost as possible. An ultraviolet curable resin liquid (16) fills molding grooves (12) formed in a molding surface of a mold (10), the ultraviolet curable resin liquid (16) in the molding grooves (12) is irradiated with ultraviolet light, and a waterproof packing (20), which is obtained by irradiating the ultraviolet curable resin liquid (16) in the molding grooves (12) with the ultraviolet light, is removed from the molding grooves (12). The molding grooves (12) may be formed on the same plane or on a curved surface, or may be formed on an uneven surface. In addition, ultraviolet light may be radiated while the molding grooves (12) are being filled with the ultraviolet curable resin liquid (16), or ultraviolet light may be radiated after the molding grooves are filled.
Description
本発明は、各種電気製品の防水用途に使用する防水用パッキンの製造方法とこの方法により製造した防水用パッキンに関するものである。
The present invention relates to a method for manufacturing a waterproof packing used for waterproofing various electric products and a waterproof packing manufactured by this method.
携帯電話等、各種電気製品には防水のために合成樹脂製の防水用パッキンが使用されている。この合成樹脂製の防水用パッキンは、例えば、上下の金型の間に形成された溝状の空隙内に２種類のモノマーからなる液を注入し、注入されて形成されたモノマーの混合液を溝状の空隙内で反応・硬化させる方法（リム成型：Reaction Injection Molding）により製造されている。
For various electric products such as mobile phones, waterproof packing made of synthetic resin is used for waterproofing. This waterproof packing made of synthetic resin, for example, injects a liquid composed of two kinds of monomers into a groove-like gap formed between upper and lower molds, and mixes the mixture of the monomers formed by injection. Manufactured by a method of reacting and curing in a groove-like void (rim molding: Reaction InjectionoldMolding).
しかし、この方法で使用されている金型は精密に作られていて高価なため、この方法で防水用パッキンを製造すると、金型の費用が防水用パッキンの製造コストに大きく影響し、防水用パッキンの製造コストが高くなるという問題がある。
However, the molds used in this method are precisely made and expensive, so when waterproof packing is manufactured by this method, the cost of the mold greatly affects the manufacturing cost of the waterproof packing. There is a problem that the manufacturing cost of the packing becomes high.
また、この方法で防水用パッキンを製造する場合、溝状の空隙内に注入されて形性されたモノマーの混合液を反応させて硬化させるために時間がかかるので、防水用パッキンの生産性が悪く、防水用パッキンの製造コストが高くなるという問題がある。
In addition, when producing a waterproof packing by this method, it takes time to react and cure the mixed liquid of the monomer injected into the groove-shaped gap and thus form the waterproof packing. Unfortunately, there is a problem that the manufacturing cost of the waterproof packing is increased.
本発明が解決しようとする課題は、防水用パッキンを製造する方法において使用する金型が高価で、防水用パッキンを安価に製造することができない点である。
The problem to be solved by the present invention is that the mold used in the method for manufacturing the waterproof packing is expensive, and the waterproof packing cannot be manufactured at a low cost.
本発明は、金型の型面に形成した型溝内に紫外線硬化性樹脂液を充填する工程と、該型溝内の紫外線硬化性樹脂液に紫外線を照射する工程と、該型溝内の紫外線硬化性樹脂液に紫外線を照射して得られた防水用パッキンを該型溝内から取り出す工程とを備えたことを最も主要な特徴とする。
The present invention includes a step of filling an ultraviolet curable resin liquid in a mold groove formed on a mold surface of a mold, a step of irradiating the ultraviolet curable resin liquid in the mold groove with ultraviolet rays, And a step of taking out the waterproof packing obtained by irradiating the ultraviolet curable resin liquid with ultraviolet rays from the mold groove.
ここで、前記型溝は同一平面内又は湾曲した面内に形成されていても良いし、凸凹を有する面内に形成されていても良い。また、前記型溝内に紫外線硬化性樹脂液を充填しながら該型溝内の紫外線硬化性樹脂液に紫外線を照射しても良いし、充填した後で照射しても良い。前記金型の型面に合成樹脂製シートを該金型の型溝内の紫外線硬化性樹脂液と該合成樹脂製シートとが接触する状態で被覆させた後、該型溝内の紫外線硬化性樹脂液に紫外線を照射しても良い。
Here, the mold groove may be formed in the same plane or a curved surface, or may be formed in a surface having irregularities. Further, the ultraviolet curable resin liquid in the mold groove may be irradiated with ultraviolet light while filling the mold groove with the ultraviolet curable resin liquid, or may be irradiated after filling. The mold surface of the mold is coated with a synthetic resin sheet in a state where the ultraviolet curable resin liquid in the mold groove of the mold is in contact with the synthetic resin sheet, and then the ultraviolet curable resin in the mold groove is cured. The resin liquid may be irradiated with ultraviolet rays.
本発明の防水用パッキンの製造方法は、使用している金型が表面に型溝を形成しただけの簡易な金型なので、防水用パッキンの製造コストに占める金型代を安く抑えることができ、従って、防水用パッキンを安価に製造することができるという利点がある。
The waterproof packing manufacturing method of the present invention is a simple mold in which the mold used has a mold groove formed on the surface, so that the mold cost occupying the manufacturing cost of the waterproof packing can be kept low. Therefore, there is an advantage that the waterproof packing can be manufactured at low cost.
また、本発明の防水用パッキンの製造方法は、使用している金型が表面に型溝を形成しただけの簡易な金型なので、金型を容易に製造することができ、従って、金型の設計変更に容易に対応することができるという利点がある。
In addition, since the method of manufacturing the waterproof packing according to the present invention is a simple mold in which the mold used is simply a mold groove formed on the surface, the mold can be easily manufactured. There is an advantage that it is possible to easily cope with design changes.
また、本発明の防水用パッキンの製造方法は、リム成形のように金型の開閉動作が無いので、そのための複雑且つ精密な機械的機構が不要であり、防水用パッキンの製造コストに占める設備代を安く抑えることができ、従って、防水用パッキンを安価に製造することができるという利点がある。
Further, the method for manufacturing a waterproof packing according to the present invention does not require the opening and closing operation of the mold as in the case of rim molding, so that a complicated and precise mechanical mechanism is not required, and the equipment occupies the manufacturing cost of the waterproof packing. Therefore, there is an advantage that the waterproof packing can be manufactured at a low cost.
また、本発明の防水用パッキンの製造方法は、リム成形のように金型内の狭い空間への合成樹脂の注入が無いので、そのための複雑且つ精密な機械的機構が不要であり、防水用パッキンの製造コストに占める設備代を安く抑えることができ、従って、防水用パッキンを安価に製造することができるという利点がある。
Further, the method for manufacturing a waterproof packing according to the present invention does not require injection of synthetic resin into a narrow space in the mold as in the case of rim molding, so that a complicated and precise mechanical mechanism is not required. The equipment cost occupying the manufacturing cost of the packing can be reduced at a low cost. Therefore, there is an advantage that the waterproof packing can be manufactured at low cost.
また、本発明の防水用パッキンの製造方法は、金型の表面に形成した型溝内に紫外線硬化性樹脂液を外から滴下することによって紫外線硬化性樹脂液を充填することができるので、リム成形の場合と比べ、合成樹脂液を型内に容易且つ速やかに充填することができ、従って、防水用パッキンを生産性良く、安価に製造することができるという利点がある。
Further, the waterproof packing manufacturing method of the present invention can fill the ultraviolet curable resin liquid by dropping the ultraviolet curable resin liquid from the outside into a mold groove formed on the surface of the mold. Compared to the case of molding, the synthetic resin liquid can be easily and quickly filled in the mold, and therefore, there is an advantage that the waterproof packing can be manufactured with high productivity and at low cost.
また、本発明の防水用パッキンの製造方法は、金型の型溝内に充填した紫外線硬化性樹脂液に紫外線を直接照射して紫外線硬化性樹脂液を硬化させるので、リム成形の場合と比べ、合成樹脂液を速やかに硬化させることができ、従って、防水用パッキンを生産性良く、安価に製造することができるという利点がある。
In addition, the method for manufacturing a waterproof packing according to the present invention cures the ultraviolet curable resin liquid by directly irradiating the ultraviolet curable resin liquid filled in the mold groove of the mold with ultraviolet rays. Thus, the synthetic resin liquid can be quickly cured, and therefore, there is an advantage that the waterproof packing can be manufactured with high productivity and at low cost.
また、本発明の防水用パッキンの製造方法は、型溝内に紫外線硬化性樹脂液を充填した型面に合成樹脂シートを載せて紫外線を照射するだけで合成樹脂シートで保形された防水用パッキンを作ることができるので、合成樹脂シートで保形された防水用パッキンを容易に作ることができるという利点がある。
In addition, the waterproof packing manufacturing method of the present invention is for waterproofing in which a synthetic resin sheet is placed on a mold surface filled with an ultraviolet curable resin liquid in a mold groove and irradiated with ultraviolet rays and then retained by the synthetic resin sheet. Since the packing can be made, there is an advantage that the waterproof packing retained by the synthetic resin sheet can be easily made.
各種電気製品の防水用途に使用する防水用パッキンをできるだけ安価に提供するという目的を、最小の部品点数で、防水用パッキンの品質を損なわずに実現した。
The objective of providing waterproof packing for use in waterproofing of various electrical products as cheaply as possible was achieved with the minimum number of parts and without compromising the quality of the waterproof packing.
図１は本発明の一実施例に係る防水用パッキンの製造方法を示す工程図、図２は本発明の一実施例に係る防水用パッキンの製造方法に使用する金型の一例を示す斜視図、図３は図２のＡ－Ａ矢視断面図である。
FIG. 1 is a process diagram showing a method for manufacturing a waterproof packing according to one embodiment of the present invention, and FIG. 2 is a perspective view showing an example of a mold used in the method for manufacturing a waterproof packing according to one embodiment of the present invention. 3 is a cross-sectional view taken along the line AA in FIG.
本発明に係る防水用パッキンの製造方法は、これらの図に示すように、金型１０の一方の面に形成した型溝１２内に紫外線硬化性樹脂液１６を充填する充填工程１４と、型溝１２内に充填した紫外線硬化性樹脂液１６に紫外線を照射する照射工程１８と、型溝１２内の紫外線硬化性樹脂液１６に紫外線を照射して得られた防水用パッキン２０を型溝１２内から取り出す取出工程２２とからなる。
The waterproof packing manufacturing method according to the present invention includes, as shown in these drawings, a filling step 14 in which an ultraviolet curable resin liquid 16 is filled in a mold groove 12 formed on one surface of a mold 10, and a mold. An irradiation step 18 for irradiating the ultraviolet curable resin liquid 16 filled in the groove 12 with ultraviolet light, and a waterproof packing 20 obtained by irradiating the ultraviolet curable resin liquid 16 in the mold groove 12 with ultraviolet light are used as the mold groove 12. And an extraction step 22 to be taken out from the inside.
ここで、金型１０の型溝１２は、同一の平坦な面内に形成されていてもよいし、製造される防水用パッキンの形状を考慮し、湾曲した面内に形成されていてもよいし、凸凹又は段差を有する面内に形成されていてもよい。また、紫外線を照射するタイミングは、紫外線硬化性樹脂液１６を充填し終わった後、金型１０を紫外線照射装置に運び、ここで紫外線を照射してもよいし、金型１０の型溝１２内に紫外線硬化性樹脂液１６を充填しながら充填直後の紫外線硬化性樹脂液１６に紫外線を照射してもよい。
Here, the mold groove 12 of the mold 10 may be formed in the same flat surface, or may be formed in a curved surface in consideration of the shape of the waterproof packing to be manufactured. However, it may be formed in a plane having irregularities or steps. Further, the timing of irradiating with ultraviolet rays may be such that after filling the ultraviolet curable resin liquid 16, the mold 10 is transported to the ultraviolet irradiating device and irradiated with ultraviolet rays, or the mold groove 12 of the mold 10 may be irradiated. The ultraviolet curable resin liquid 16 immediately after filling may be irradiated with ultraviolet rays while being filled with the ultraviolet curable resin liquid 16.
実施例１では単純な防水用パッキンを製造する場合について説明したが、他の実施例として、金型１０の型溝１２内に紫外線硬化性樹脂液１６を充填する充填工程１４と紫外線硬化性樹脂液１６に紫外線を照射する照射工程１８の間に、図４に示すように、金型１０の型面に合成樹脂製シート２４を被覆させる被覆工程２６を設けてもよい。
In the first embodiment, the case of manufacturing a simple waterproof packing has been described. As another embodiment, a filling process 14 for filling the mold groove 12 of the mold 10 with the ultraviolet curable resin liquid 16 and the ultraviolet curable resin are described. As shown in FIG. 4, a covering step 26 for covering the mold surface of the mold 10 with a synthetic resin sheet 24 may be provided between the irradiation step 18 for irradiating the liquid 16 with ultraviolet rays.
被覆工程２６を設けた場合は、紫外線硬化性樹脂液１６が紫外線によって架橋し、その際、紫外線硬化性樹脂液１６と合成樹脂製シート２４も架橋により結合し、図５に示すように、合成樹脂製シート２４で支持された防水用パッキン２０を製造することができる。このようにして製造した防水用パッキンは図６に示すように電気製品２６内に組み込んで使用する。この防水用パッキン２０は保形性が良いので、電気製品２６内に装着し易い。
In the case where the coating step 26 is provided, the ultraviolet curable resin liquid 16 is crosslinked by ultraviolet rays, and at that time, the ultraviolet curable resin liquid 16 and the synthetic resin sheet 24 are also bonded by crosslinking, and as shown in FIG. The waterproof packing 20 supported by the resin sheet 24 can be manufactured. The waterproof packing manufactured in this way is used by being incorporated in the electric product 26 as shown in FIG. Since the waterproof packing 20 has good shape retention, it is easy to install in the electrical product 26.
本発明は金型の型面に溝条以外に任意の形状の凹部を形成することによって防水用パッキン以外の合成樹脂成形品を安価に製造する用途にも適用することができる。
The present invention can also be applied to the use of manufacturing a synthetic resin molded product other than the waterproof packing at low cost by forming a concave portion having an arbitrary shape other than the groove on the mold surface.
１０ 金型
１２ 型溝
１４ 充填工程
１６ 紫外線硬化性樹脂液
１８ 照射工程
２０ 防水用パッキン
２２ 取出工程
２４ 合成樹脂製シート
２６ 電気製品 DESCRIPTION OFSYMBOLS 10 Mold 12 Mold groove 14 Filling process 16 UV curable resin liquid 18 Irradiation process 20 Waterproof packing 22 Extraction process 24 Synthetic resin sheet 26 Electrical product
１２ 型溝
１４ 充填工程
１６ 紫外線硬化性樹脂液
１８ 照射工程
２０ 防水用パッキン
２２ 取出工程
２４ 合成樹脂製シート
２６ 電気製品 DESCRIPTION OF
Claims (7)
- 金型の一方の面に形成した型溝内に紫外線硬化性樹脂液を充填する充填工程と、該型溝内の紫外線硬化性樹脂液に紫外線を照射する照射工程と、該型溝内の紫外線硬化性樹脂液に紫外線を照射して得られた防水用パッキンを該型溝内から取り出す取出工程とを備えたことを特徴とする防水用パッキンの製造方法。 A filling step of filling an ultraviolet curable resin liquid in a mold groove formed on one surface of the mold, an irradiation step of irradiating the ultraviolet curable resin liquid in the mold groove with ultraviolet rays, and an ultraviolet ray in the mold groove A method for producing a waterproof packing, comprising: taking out the waterproof packing obtained by irradiating the curable resin liquid with ultraviolet rays from the mold groove.
- 前記型溝が同一平面内又は湾曲した面内に形成されていることを特徴とする請求項１に記載の防水用パッキンの製造方法。 The method for producing a waterproof packing according to claim 1, wherein the groove is formed in the same plane or a curved surface.
- 前記型溝が凸凹又は段差を有する面内に形成されていることを特徴とする請求項１に記載の防水用パッキンの製造方法。 The method for producing a waterproof packing according to claim 1, wherein the groove is formed in a surface having irregularities or steps.
- 前記型溝内に紫外線硬化性樹脂液を充填しながら充填直後の紫外線硬化性樹脂液に紫外線を照射することを特徴とする請求項１～３のいずれかに記載の防水用パッキンの製造方法。 The method for producing a waterproof packing according to any one of claims 1 to 3, wherein the ultraviolet curable resin liquid immediately after filling is irradiated with ultraviolet rays while the mold groove is filled with the ultraviolet curable resin liquid.
- 前記金型の型面に形成した型溝内に紫外線硬化性樹脂液を充填させた後、該金型の型面に合成樹脂製シートを該金型の型溝内の紫外線硬化性樹脂液と該合成樹脂製シートとが接触する状態で被覆させ、その後、合成樹脂製シートを通して該型溝内の紫外線硬化性樹脂液に紫外線を照射することを特徴とする請求項１又は２に記載の防水用パッキンの製造方法。 After filling the mold groove formed in the mold surface of the mold with an ultraviolet curable resin liquid, a synthetic resin sheet is placed on the mold surface of the mold and the ultraviolet curable resin liquid in the mold groove of the mold. The waterproofing according to claim 1 or 2, wherein the synthetic resin sheet is coated so as to be in contact with the ultraviolet curable resin liquid in the mold groove through the synthetic resin sheet and then irradiated with ultraviolet rays. Manufacturing method for packing.
- 金型の型面に形成した型溝内に紫外線硬化性樹脂液を充填し、該型溝内の紫外線硬化性樹脂液に紫外線を照射してなることを特徴とする防水用パッキン。 A waterproof packing, wherein an ultraviolet curable resin liquid is filled in a mold groove formed on a mold surface of the mold, and the ultraviolet curable resin liquid in the mold groove is irradiated with ultraviolet rays.
- 合成樹脂製シートの一方の面に取り付けられてなることを特徴とする請求項６に記載の防水用パッキン。 The waterproof packing according to claim 6, wherein the waterproof packing is attached to one surface of a synthetic resin sheet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2014/057325 WO2015140923A1 (en) | 2014-03-18 | 2014-03-18 | Method for manufacturing waterproof packing, and waterproof packing manufactured by same method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2014/057325 WO2015140923A1 (en) | 2014-03-18 | 2014-03-18 | Method for manufacturing waterproof packing, and waterproof packing manufactured by same method |
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| WO2015140923A1 true WO2015140923A1 (en) | 2015-09-24 |
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| JPH02231116A (en) * | 1989-03-03 | 1990-09-13 | Toyo Cloth Kk | Manufacture of film having unevenness |
| JPH10310163A (en) * | 1997-05-09 | 1998-11-24 | Kitagawa Ind Co Ltd | Packing and its production |
| JP2004167778A (en) * | 2002-11-19 | 2004-06-17 | Bridgestone Corp | Method for manufacturing gasket for hard disc drive and gasket for hard disc drive |
| JP2008529833A (en) * | 2005-02-07 | 2008-08-07 | ヘンケル コーポレイション | Injection molding process, apparatus and materials for forming a cure-in-place gasket |
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