JPS5813330B2 - Netsukaso Seiji Yushisei Keihin No Youchiyakuhouhou - Google Patents
Netsukaso Seiji Yushisei Keihin No YouchiyakuhouhouInfo
- Publication number
- JPS5813330B2 JPS5813330B2 JP50147823A JP14782375A JPS5813330B2 JP S5813330 B2 JPS5813330 B2 JP S5813330B2 JP 50147823 A JP50147823 A JP 50147823A JP 14782375 A JP14782375 A JP 14782375A JP S5813330 B2 JPS5813330 B2 JP S5813330B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- fitting member
- protrusion
- welding
- thermoplastic resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、熱可塑性樹脂成形品の溶着方法に関するもの
であり、更に詳しくは、熱可塑性樹脂製の容器状物、玩
具、その他種々の熱可塑性樹脂成形品を溶着する方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for welding thermoplastic resin molded products, and more specifically, to a method for welding thermoplastic resin containers, toys, and various other thermoplastic resin molded products. It is about the method.
従来、熱可塑性樹脂同志を溶着する方法とじては、有機
溶剤を主成分とする接着剤による接着、熱溶着、高周波
溶着、超音波溶着等の方法が行なわれているが、比較的
低融点で剛性の大きい熱可塑性樹脂成形物を溶着するに
は、溶融しろを取る必要がなく、溶着後もパリと呼ばれ
る溶融カス全取除く必要もないことから超音波溶着法が
好適に用いられている。Conventionally, methods for welding thermoplastic resins together include adhesives containing organic solvents as the main component, thermal welding, high-frequency welding, and ultrasonic welding. Ultrasonic welding is preferably used to weld thermoplastic resin moldings with high rigidity because it is not necessary to remove the melting margin and it is not necessary to remove all the molten residue called sludge after welding.
しかし、この超音波溶着法は、超音波発振機の電気振動
エネルギーを機械振動エネルギーに変換して、これを集
束させた振動子ホーンを溶着物に押圧することにより、
振動エネルギーを溶着物の溶着しようとする合せ目に集
中させ、局部的な温度上昇を惹起させ樹脂を軟化溶融さ
せて接着させるものであるから、振動方向に対して直角
方向の面の溶着は良好に行なわれるが、振動方向に対し
て平行方向の面は良好に溶着し難かった。However, this ultrasonic welding method converts the electrical vibration energy of an ultrasonic oscillator into mechanical vibration energy, and presses a vibrator horn that focuses this energy onto the welded object.
Vibration energy is concentrated at the joint where the welding material is to be welded, causing a local temperature rise that softens and melts the resin, resulting in good welding on surfaces perpendicular to the direction of vibration. However, it was difficult to weld well the surfaces parallel to the vibration direction.
本発明者等は超音波溶着方法のこのような欠点を解消し
、筒状体と嵌合部材とを超音波溶着方法によって均一で
良好に溶着させるべく種々検討を行なった結果、溶着す
る物品即ち筒状体と嵌合部材の両者の構造を特殊な関係
とし、しかも特殊な条件下に溶着を行なうことにより上
記問題を解決し得ることを見出し、本発明を完成した。The inventors of the present invention have conducted various studies in order to solve these drawbacks of the ultrasonic welding method and weld the cylindrical body and the fitting member uniformly and well using the ultrasonic welding method. The inventors have discovered that the above problem can be solved by creating a special relationship between the structures of the cylindrical body and the fitting member, and by performing welding under special conditions, and have completed the present invention.
本発明の目的は、熱可塑性樹脂成形品を、安全に、工業
的に有利に溶着する方法を提供することにある。An object of the present invention is to provide a method for safely and industrially advantageous welding of thermoplastic resin molded articles.
しかしてその要旨とするところは、熱可塑性樹脂製筒状
体と、該筒状体の端部に外方からかぶせられる熱可塑性
樹脂製嵌合部材とを溶着するにあたり、前記嵌合部材に
は、前記筒状体の内径よりも若干小さい外径を有し、当
該筒状体の内側に挿入しうる複数の断続した舌片で構成
された突起を設け、この突起を前記筒状体の端部内側に
、若干の隙間を生じさせて挿入することにより前記嵌合
部材を筒状体端部にかぶせ、次いで振動子ホーンにより
嵌合部材の中央部を押圧して嵌合部材の突起を筒状体の
内側に密着させ、超音波により筒状体と嵌合部材の突起
とを溶着させることを特徴とする、熱可塑性樹脂成形品
の溶着方法に存する。However, the gist is that when welding a thermoplastic resin cylindrical body and a thermoplastic resin fitting member that is placed over the end of the cylindrical body from the outside, the fitting member is , a protrusion having an outer diameter slightly smaller than the inner diameter of the cylindrical body and consisting of a plurality of interrupted tongues that can be inserted into the inside of the cylindrical body is provided, and the protrusion is connected to the end of the cylindrical body. The fitting member is inserted over the end of the cylindrical body by creating a slight gap inside the part, and then the central part of the fitting member is pressed by the vibrator horn to push the protrusion of the fitting member into the cylindrical body. The present invention relates to a method for welding thermoplastic resin molded articles, which is characterized in that the cylindrical body and the protrusion of the fitting member are welded together by ultrasonic waves while the cylindrical body is brought into close contact with the inside of the cylindrical body.
以下、本発明方法を詳細に説明する。The method of the present invention will be explained in detail below.
本発明方法は、筒状体及び嵌合部材がともに熱可塑性樹
脂よりなるものに適用される。The method of the present invention is applied to a case where both the cylindrical body and the fitting member are made of thermoplastic resin.
筒状体及び嵌合部材製造用に使用しうる熱可塑性樹脂と
しては、ゴム強化ポリスチレン、アクリロニトリループ
タジエンースチレン三元共重合体（ＡＢＳ樹脂）等のス
チレン系樹脂；ポリエチレン、ポリプロピレン等のオレ
フイン系樹脂；ポリ塩化ビニル塩化ビニルと他の共重合
しうる単量体との共重合体等の塩化ビニル系樹脂；ポリ
エチレンテレフタレート、ポリプチレンテレフタレート
等のポリエステル樹脂；ボリアセタール、ポリオキシメ
チレン、塩素化ポリエーテル、ポリフエニレンオキシド
等のポリエーテル樹脂；ポリアミド、ポリカーボネート
等があげられる。Thermoplastic resins that can be used for manufacturing the cylindrical body and the fitting member include styrenic resins such as rubber-reinforced polystyrene and acrylonitriloptadiene-styrene terpolymer (ABS resin); olefins such as polyethylene and polypropylene. Polyvinyl chloride-based resins such as copolymers of vinyl chloride and other copolymerizable monomers; Polyester resins such as polyethylene terephthalate and polybutylene terephthalate; polyacetal, polyoxymethylene, chlorinated Examples include polyether resins such as polyether and polyphenylene oxide; polyamides and polycarbonates.
本発明における筒状体及び嵌合部材はともに上記熱可塑
性樹脂を原料として射出成形、押出成形等によって製造
される。Both the cylindrical body and the fitting member in the present invention are manufactured by injection molding, extrusion molding, etc. using the above thermoplastic resin as a raw material.
筒状体と嵌合部材の製造に使用される樹脂は、通常同種
であることが、後に超音波により溶着させる際の溶着性
の点で好ましいが、異種であっても、相互に溶着しやす
い組合せであればよい。It is usually preferable for the resins used to manufacture the cylindrical body and the fitting member to be of the same type in terms of weldability when welding them using ultrasonic waves later, but even if they are of different types, they are likely to weld together. Any combination is fine.
また、これらの熱可塑性樹脂に酸化防止剤、紫外線吸収
剤、熱安定剤、帯電防止剤、難燃剤、架橋剤、発泡剤、
染料、顔料、有機充填剤、無機充填剤等を添加混合して
も良いことは勿論である。In addition, these thermoplastic resins contain antioxidants, ultraviolet absorbers, heat stabilizers, antistatic agents, flame retardants, crosslinking agents, blowing agents,
Of course, dyes, pigments, organic fillers, inorganic fillers, etc. may be added and mixed.
以下、本発明方法の実施の態様例を図面に従って詳細に
説明するが、本発明はその要旨を超えない限り、以下の
例に限焔されるものではない。Hereinafter, embodiments of the method of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the following examples unless the gist thereof is exceeded.
第１図は本発明方法を適用する前の筒状体と嵌合部材と
を組み合せた状態を一部切断して示す側面図、第２図は
第１図に示した筒状体と嵌合部材との組合せ状態を拡大
して示す縦断面図、第３図は振動子ホーンによって嵌合
部材を押圧して溶着している状態を一部切断して示す側
面図、第４図イ〜二は、本発明方法の実施に好ましく使
用しうる嵌合部材の構造の例を示す斜視図である。Fig. 1 is a partially cutaway side view showing the combined state of the cylindrical body and the fitting member before applying the method of the present invention, and Fig. 2 is a side view showing the cylindrical body and fitting member shown in Fig. 1. FIG. 3 is a longitudinal cross-sectional view showing an enlarged state of the combination with the members; FIG. 3 is a partially cutaway side view showing the state in which the fitting member is pressed and welded by the vibrator horn; and FIGS. FIG. 2 is a perspective view showing an example of the structure of a fitting member that can be preferably used in carrying out the method of the present invention.
図において、１は筒状体、２は嵌合部材、３は嵌合部材
に設けられた外部突起、４は切り込み、５は内部突起、
６は放射状突起、７は放射状突起に設けられた切り込み
、８は振動子ホーン、Ａは振動方向に対して直角方向の
溶着面、Ｂは振動方向と平行方向の溶着面、Ｃは振動子
ホーンによる押圧力、Ｄは外部突起３に生ずるモーメン
トによる力をそれぞれ示す。In the figure, 1 is a cylindrical body, 2 is a fitting member, 3 is an external protrusion provided on the fitting member, 4 is a notch, 5 is an internal protrusion,
6 is a radial projection, 7 is a notch provided in the radial projection, 8 is a vibrator horn, A is a welding surface perpendicular to the vibration direction, B is a welding surface parallel to the vibration direction, C is a vibrator horn and D indicate the force due to the moment generated on the external protrusion 3, respectively.
本発明方法においては、第１図に示したように筒状体１
と嵌合部材２とを用いて容器とする。In the method of the present invention, as shown in FIG.
and the fitting member 2 to form a container.
筒状体１は円筒のものが普通であるが、この形状に限ら
れるものではない。The cylindrical body 1 is generally cylindrical, but is not limited to this shape.
嵌合部材２は第４図イ及び二に示したような構造のもの
が好ましい。The fitting member 2 preferably has a structure as shown in FIGS. 4A and 4B.
嵌合部材２には、筒状体１の内側に挿入しうる突起３を
設ける。The fitting member 2 is provided with a protrusion 3 that can be inserted into the inside of the cylindrical body 1.
この突起３の外径は、筒状体１の内側に挿入しうるよう
な寸法、すなわち、突起３の外径は筒状体１の内径より
も若干小さい寸法とし、筒状体１の内側に突起３を挿入
したときに、第２図に示したように、両者間に若干の隙
間が生ずるようにする。The outer diameter of the protrusion 3 is such that it can be inserted inside the cylindrical body 1, that is, the outer diameter of the protrusion 3 is slightly smaller than the inner diameter of the cylindrical body 1. When the protrusion 3 is inserted, a slight gap is created between the two as shown in FIG.
この隙間の大きさは、筒状体及び嵌合部材の樹脂の種類
、製品の大きさ、製品の用途により適宜決定することが
望ましい。It is desirable that the size of this gap is appropriately determined depending on the type of resin of the cylindrical body and the fitting member, the size of the product, and the use of the product.
突起３は、一定間隔で切り込み４を設け、複数の断続し
た舌片で構成する。The protrusion 3 has notches 4 at regular intervals and is composed of a plurality of interrupted tongue pieces.
突起３をこのようにするのは、筒状体１と嵌合部材３を
第１図のように組み合せて、第３図のように振動子ホー
ンで嵌合部材の中央部を押圧したとき、突起３が筒状体
の内側面に密着しうるようにするためである。The protrusion 3 is formed in this way when the cylindrical body 1 and the fitting member 3 are combined as shown in FIG. 1, and the central part of the fitting member is pressed with a vibrator horn as shown in FIG. This is to enable the protrusion 3 to come into close contact with the inner surface of the cylindrical body.
ちなみに、嵌合部材２の突起３に切り込みを入れずに連
続した筒状とする場合には、筒状体１とこの嵌合部材と
を組合せて、第３図のように振動子ホーンで嵌合部材の
中央部を押圧しても、筒状体１の内側面を突起３とは局
部的にしか溶着せず、好ましい溶着は得られない。Incidentally, if the protrusion 3 of the fitting member 2 is to have a continuous cylindrical shape without cutting, the cylindrical body 1 and this fitting member are combined and fitted with a vibrator horn as shown in Fig. 3. Even if the central part of the mating member is pressed, the inner surface of the cylindrical body 1 and the protrusion 3 are only locally welded, and preferable welding cannot be obtained.
なお、嵌合部材２の突起３に設けられる切り込みの数、
巾、深さは、製品の構造、樹脂の種類、用途等により適
宜決定される。Note that the number of notches provided in the protrusion 3 of the fitting member 2,
The width and depth are appropriately determined depending on the structure of the product, the type of resin, the use, etc.
また、第４図口〜二に示すように、舌片状にされた外部
突起３とその内側に設けられた内部突起５との間に、切
り込み７が穿設されたりした放射状突起６を設けた構造
とすることもできる。In addition, as shown in Figure 4-2, a radial projection 6 with a notch 7 is provided between the tongue-shaped external projection 3 and the internal projection 5 provided inside the tongue-shaped external projection 3. It is also possible to have a different structure.
本発明方法においては、上記のような筒状体１と嵌合部
材２を準備し、先ず、筑１図に示したように嵌合部材２
を筒状体１端部外方からかぶせ、嵌合部材に設けられた
突起３を筒状体１の端部内側に挿入する。In the method of the present invention, the cylindrical body 1 and the fitting member 2 as described above are prepared, and first, the fitting member 2 is fitted as shown in FIG.
is placed over the end of the cylindrical body 1 from the outside, and the protrusion 3 provided on the fitting member is inserted into the inside of the end of the cylindrical body 1.
次いで、第３図に示したように振動子ホーン８により、
嵌合部材２の中央部を押圧して、嵌合部材の突起を筒状
体の内側面に密着させる。Next, as shown in FIG. 3, the vibrator horn 8
The center portion of the fitting member 2 is pressed to bring the protrusion of the fitting member into close contact with the inner surface of the cylindrical body.
この際使用する振動子ホーン８は、嵌合部材２に当接す
る面が平滑な場合には、振動子ホーン８の径を筒状体１
の内径より小さく設定するのが、突起３に働く力Ｄが良
好に得られるので好ましい。When the vibrator horn 8 used at this time has a smooth surface that comes into contact with the fitting member 2, the diameter of the vibrator horn 8 should be adjusted to the cylindrical body 1.
It is preferable to set the diameter to be smaller than the inner diameter of , since the force D acting on the protrusion 3 can be obtained satisfactorily.
筒状体１と嵌合部材２とを第１図のように組合せても、
第３図に示すように嵌合部材２の中央部を押圧せず、例
えば振動子ホーン８の嵌合部材２に当接する面が平滑で
、振動子ホーン８の径が筒状体１の径と同一かそれより
大きい場合は、振動子ホーンで押圧し、押圧状態のまま
超音波を荷しても、筒状体１と嵌合部材２とは、第２図
におけるＡ部分、すなわち、振動方向に対して直角方向
の溶着面しか溶着せず、振動方向と平行方向の面Ｂは全
く溶着が行われないことになる。Even if the cylindrical body 1 and the fitting member 2 are combined as shown in FIG.
As shown in FIG. 3, the center part of the fitting member 2 is not pressed; for example, the surface of the vibrator horn 8 that comes into contact with the fitting member 2 is smooth, and the diameter of the vibrator horn 8 is the same as the diameter of the cylindrical body 1. If it is the same as or larger than , even if the cylindrical body 1 and the fitting member 2 are pressed with a vibrator horn and subjected to ultrasonic waves while being pressed, the part A in FIG. Only the welding surfaces perpendicular to the vibration direction are welded, and no welding is performed at all on the surface B parallel to the vibration direction.
振動子ホーン８の嵌合部材２に当接する面が突出する円
弧状等であれば、特に振動子ホーン８の径を規定する必
要はない。If the surface of the vibrator horn 8 that comes into contact with the fitting member 2 has a protruding arc shape, it is not necessary to specify the diameter of the vibrator horn 8 in particular.
振動子ホーン８によって嵌合部材２に加えられる押圧力
は、筒状体１の内径と振動子ホーン８の径との比、筒状
体１の内径と嵌合部材２に設けられた突起３の外径とで
形成される隙間の大小、筒状体、嵌合部材の製造に使用
された樹脂の種類等により変るので、適宜決定すること
が望ましい。The pressing force applied to the fitting member 2 by the vibrator horn 8 is determined by the ratio of the inner diameter of the cylindrical body 1 and the diameter of the vibrator horn 8, the inner diameter of the cylindrical body 1, and the protrusion 3 provided on the fitting member 2. It is desirable to appropriately determine the size of the gap formed by the outer diameter of the cylindrical body, the type of resin used to manufacture the cylindrical body, the fitting member, etc.
本発明方法においては、上記のように振動子ホーン８に
よって嵌合部材２の中央部分を押圧し、押圧状態を継続
したまま振動子ホーン８に超音波を荷する。In the method of the present invention, the central portion of the fitting member 2 is pressed by the vibrator horn 8 as described above, and ultrasonic waves are applied to the vibrator horn 8 while the pressing state is continued.
第３図に示すように、振動子ホーン８による押圧力Ｃに
よって生じたモーメントが、嵌合部材の突起３を筒状体
１の内側面に密着させるような力Ｄとなり、超音波によ
り良好な溶着が行われる。As shown in FIG. 3, the moment generated by the pressing force C by the vibrator horn 8 becomes a force D that brings the protrusion 3 of the fitting member into close contact with the inner surface of the cylindrical body 1. Welding is performed.
このように、本発明方法によれば、筒状体１と嵌合部材
２とは、超音波によって溶着することができるので、従
来の有機溶剤を使用して接着する方法における有機溶剤
による作業環境の悪化、引火の危険、樹脂成形品への悪
影響という問題は全くない。As described above, according to the method of the present invention, the cylindrical body 1 and the fitting member 2 can be welded together by ultrasonic waves, so that the working environment using an organic solvent in the conventional bonding method using an organic solvent can be avoided. There is no problem of deterioration of the temperature, danger of ignition, or adverse effects on resin molded products.
本発明方法によって得られた製品は、Ａ面のみならずＢ
面も溶着されているので接着力は強力なものとなり、例
えば、嵌合部材２を蓋や底板とする容器や、玩具等衛生
上有機溶剤等の接着剤を使用し得ない製品を溶着するに
極めて有効であり、その工業的利用価値は極めて犬であ
る。The product obtained by the method of the present invention has not only side A but also side B
Since the surfaces are also welded, the adhesive strength is strong, and is useful, for example, for welding containers where the fitting member 2 is used as a lid or bottom plate, toys, and other products where adhesives such as organic solvents cannot be used for sanitary reasons. It is extremely effective and its industrial utility value is extremely significant.
第１図は、本発明方法を適用する前の筒状体と嵌合部材
とを組み合せた状態の一部縦断側面図、第２図は第１図
に示した筒状体と嵌合部材との組み合せ状態を拡大して
示す縦断面図、第３図は振動子ホーンによって嵌合部材
を押圧．して溶着している状態を一部切断して示す側面
図、第４図イ〜二は本発明方法の実施に好ましく使用し
得る嵌合部材の構造の例を示す斜視図である。
図において、１は筒状体、２は嵌合部材、３は突起、４
は切り込み、５は内部突起、６は放射状突起、７は放射
状突起の切り込み、８は振動子ホーン、全それぞれ示す
。FIG. 1 is a partially vertical side view of the combination of the cylindrical body and the fitting member before applying the method of the present invention, and FIG. 2 is a side view of the cylindrical body and the fitting member shown in FIG. 1. Fig. 3 is an enlarged vertical cross-sectional view showing the assembled state of the mating member pressed by the vibrator horn. FIGS. 4A to 4B are perspective views showing an example of the structure of a fitting member that can be preferably used in carrying out the method of the present invention. FIGS. In the figure, 1 is a cylindrical body, 2 is a fitting member, 3 is a projection, and 4
5 is a notch, 5 is an internal protrusion, 6 is a radial protrusion, 7 is a notch in the radial protrusion, and 8 is a vibrator horn.
Claims (1)
らかぶせられる熱可塑性樹脂製嵌合部材を溶着するにあ
たり、前記嵌合部材には、前記筒状体の内径よりも若干
小さい外径を有し、当該筒状体の内側に挿入しうる複数
の断続した舌片で構成された突起を設け、この突起を前
記筒状体の端部内側に、若干の隙間を生じさせて挿入す
ることにより嵌合部材を筒状体端部にかぶせ、次いで振
動子ホーンにより嵌合部材の中央部を押圧して嵌合部材
の突起を筒状体の内側面に密着させ、超音波により筒状
体と嵌合部材とを溶着させることを特徴とする、熱可塑
性樹脂成形品の溶着方法。1. When welding a thermoplastic resin cylindrical body and a thermoplastic resin fitting member that is placed over the end of the cylindrical body from the outside, the fitting member has a diameter larger than the inner diameter of the cylindrical body. A protrusion having a slightly smaller outer diameter and consisting of a plurality of interrupted tongues that can be inserted into the inside of the cylindrical body is provided, and the protrusion is inserted inside the end of the cylindrical body with a slight gap. The fitting member is inserted over the end of the cylindrical body, and then the central part of the fitting member is pressed by the vibrator horn to bring the protrusion of the fitting member into close contact with the inner surface of the cylindrical body. A method for welding thermoplastic resin molded products, the method comprising welding a cylindrical body and a fitting member using sound waves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50147823A JPS5813330B2 (en) | 1975-12-11 | 1975-12-11 | Netsukaso Seiji Yushisei Keihin No Youchiyakuhouhou |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50147823A JPS5813330B2 (en) | 1975-12-11 | 1975-12-11 | Netsukaso Seiji Yushisei Keihin No Youchiyakuhouhou |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5271574A JPS5271574A (en) | 1977-06-15 |
| JPS5813330B2 true JPS5813330B2 (en) | 1983-03-12 |
Family
ID=15439027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50147823A Expired JPS5813330B2 (en) | 1975-12-11 | 1975-12-11 | Netsukaso Seiji Yushisei Keihin No Youchiyakuhouhou |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5813330B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07119063B2 (en) * | 1990-01-30 | 1995-12-20 | ポリプラスチックス株式会社 | Adhesive processing method for polyarylen sulfide resin molded product and adhesive molded product |
| KR101168929B1 (en) * | 2004-05-13 | 2012-08-03 | 아이사팩 홀딩 에스에이 | Vessel welding method |
| EP4178782A1 (en) * | 2020-07-10 | 2023-05-17 | Aisapack Holding SA | Thermoformed tube head, tube and manufacturing method |
-
1975
- 1975-12-11 JP JP50147823A patent/JPS5813330B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5271574A (en) | 1977-06-15 |
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