DE2105644A1 - Bonding of plastic parts - by cold pressing the parts until material flows - Google Patents

Bonding of plastic parts - by cold pressing the parts until material flows

Info

Publication number
DE2105644A1
DE2105644A1 DE19712105644 DE2105644A DE2105644A1 DE 2105644 A1 DE2105644 A1 DE 2105644A1 DE 19712105644 DE19712105644 DE 19712105644 DE 2105644 A DE2105644 A DE 2105644A DE 2105644 A1 DE2105644 A1 DE 2105644A1
Authority
DE
Germany
Prior art keywords
base
parts
plastic
pressure
valve
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.)
Pending
Application number
DE19712105644
Other languages
German (de)
Inventor
John Alfred Ware Hertfordshire Worthington (Großbritannien)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Consort Medical PLC
Original Assignee
Bespak Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bespak Industries Ltd filed Critical Bespak Industries Ltd
Priority to DE19712105644 priority Critical patent/DE2105644A1/en
Publication of DE2105644A1 publication Critical patent/DE2105644A1/en
Pending legal-status Critical Current

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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part 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
    • B29C66/50—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

The first plastic part is guided into the socket of the second part so that the external front surface of the first part is displaced inwards and finally pressure is applied to force it onto the second part in such a manner that the second part becomes locally deformed and some of the material flows radially inwards over the surface of the first part.

Description

Verfahren zur Verbindung zweier Kunststoffteile miteinander.Method for joining two plastic parts together.

Die Erfindung betrifft die Verbindung bzw. die Befestigung zweier Kunststoffteile miteinander, von denen ein erstes Teil in einen Sockel eines zweiten Teiles eingeführt und anschließend die beiden Teile durch eine Verformung des Materials miteinander verbunden werden.The invention relates to the connection or fastening of two Plastic parts with each other, of which a first part in a socket of a second Part introduced and then the two parts by deforming the material be connected to each other.

Aufgabe der Erfindung ist, ein Verfahren zur Befestigung eines ersten Kunststoffteiles in einem Sockel eines zweiten Kunststoffteiles vorzuschlagen, bei dem das erste Teil derart in den Sockel des zweiten Teiles eingeführt wird, daß eine nach außen gerichtete Stirnfläche des ersten Teiles relativ zur Öffnungsebene des Sockels nach innen zurückversetzt ist, und anschließend auf das zweite aus kaltverformbaren Kunststoff hergestellte Teil in Richtung der Einführung des ersten Teiles ein Druck ausgeübt wird, dadurch charakterisiert, daß der Druck an mehreren am Umfang der Öffnung des Sockels verteilten Stellen derart ausgeübt wird, daß das zweite Teil lokalverformt wird und Teile seines Materials nach innen über die Stirnfläche des ersten Teiles fließen.The object of the invention is to provide a method for attaching a first Propose plastic part in a base of a second plastic part which the first part is inserted into the base of the second part in such a way that an outwardly directed end face of the first part relative to the opening plane of the base is set back inwards, and then on the second made of cold-deformable Plastic manufactured part in the direction of the introduction of the first part a pressure is exerted, characterized in that the pressure is applied to several on the circumference of the Opening of the base distributed points is exercised in such a way that the second part is locally deformed and parts of its material inward over the face of the first Part flow.

Es ist offensichtlich, daß sich die Befestigungsoperation unabhängig von der räumlichen Anordnung der Teile durchführen låBt, d.h. unabhängig davon ob der Sockel nach oben, nach unten oder in eine andere Richtung ragt. Die nach außen gerichtete Stirnfläche des ersten Teils kann von der Oberseite dieses Teiles oder von einem tieferliegenden Bund gebildet werden.It is evident that the fastening operation is independent of the spatial arrangement of the parts, i.e. regardless of whether the base protrudes upwards, downwards or in another direction. The outward directed end face of the first part can be from the top of this part or be formed by a lower-lying collar.

Das erfindungsgemäße Verfahren war zur Betestigung zweier Teile eines Sprühventiles,d.h.it Vertilkclppe und des Ventilgehäuses, ineinander entwickelt worden. Es ist nachstehend am Beispiel dieser Anwendungsart anhand der Zeichnungen ausführlich beschrieben. Es zeigt: Fig. 1 eine fragmentarische Ansicht der miteinander zu verbindenden Teile im Schnitt; Fig. 2 in kleinerem Maßstab einen Grundriß der miteinander verbundenen Teile; Fig. 3 eine Ansicht einer Ausführungsform einer Verformung im Grundriß; Fig. 4 eine Ansicht ähnlich Fig. 3 einer modifizierten Ausführungsforin einer Verformung.The method of the present invention was one for securing two parts Spray valve, i.e. with the valve body and valve housing, developed into one another been. It is shown below using the example of this type of application with reference to the drawings described in detail. It shows: Fig. 1 is a fragmentary view of each other parts to be connected in section; Fig. 2, on a smaller scale, is a plan view of the interconnected parts; 3 shows a view of an embodiment of a deformation in plan; FIG. 4 is a view similar to FIG. 3 of a modified embodiment a deformation.

Gemäß Fig. 1 bis 3 wird bei einer Anwerldungsart des erfindungsgemäßen Verfahrens ein aus Kunststoff bestehendes Ventilgehäuse 1 in einen Sockel 3 einer aus Kunststoff bestehenden Ventilkappe 2 derart eingeführt, daß das Gehäuse 1 mit dem Sockel f einen strammen Pass-Sitz bildet. Das Gehäuse 1 besitzt einen ebenen, nach außen gerichteten Bund 4, der relativ zur Öffnungsebene 6 deß Sockels 7 nac'i innen zurückversetzt ist. Mit seinem unteren Ende (nicht dargestellt) liegt das Genäuse 1 an einer Innenschulter der Ventilksppe 2 an.According to FIGS. 1 to 3, in one application type of the invention Method a valve housing 1 made of plastic in a base 3 a Made of plastic valve cap 2 inserted so that the housing 1 with the base f forms a tight fit. The housing 1 has a flat, outwardly directed collar 4, which is relative to the opening plane 6 deß Base 7 nac'i is set back inside. With its lower end (not shown) lies the housing 1 on an inner shoulder of the valve head 2.

Beide Teile bestehen aus kaltverformbaren Kunststoff, z.B. Nylon,Azetat oder Polypropylen. Die Befestigung wird dadurch bewirkt, daß mit den vier Ecken eines Stanzwerkzeuges quadratischen Querschnittes auf den Öffnungsumfang des Sockels 3 der Ventilkappe L derart in axialer Richtung ein Druck ausgeübt wird, daß gemäß Fi. 2 die Ventilkappe 2 an vier am Öffnungsumfang des Sockels 3 verteilten Stellen lokalverformt wird. Bei jeder lokalen Verformung @ließt ein Teil des Materials der Kappe 2 nach innen und bi bildet einen iiber den Bund 4 ragenden und fest an dem Bund 4 anliegenden Nocken 7. Das Stanzwerkzeug bes 14 1 natürlich eine zentrale Bohrung zur Aufnahme des nach außen ragenden Schaftes des Gehäuses 1.Both parts are made of cold-deformable plastic, e.g. nylon, acetate or polypropylene. The fastening is effected in that with the four corners a punching tool with a square cross-section on the opening circumference of the base 3 of the valve cap L such a pressure is exerted in the axial direction that according to FIG Fi. 2 the valve cap 2 at four points distributed around the opening circumference of the base 3 is locally deformed. With every local deformation @ a part of the material reads the Cap 2 inwards and bi forms one that protrudes over the collar 4 and is firmly attached to it Collar 4 abutting cams 7. The punching tool bes 14 1, of course, has a central one Bore for receiving the outwardly protruding shaft of the housing 1.

Es hat sich gezeigt, daß sich mit Pille des erfindungsgemäßen Verfahrens schnell eine Verbindung der beiden Teile miteinander herstellen läßt. Das Stanzwerkzeug kann robust konstruiert sein, so daß die Gefahr von WerkzeugbrüchelI weitgehend eliminiert wird.It has been shown that with pill the method according to the invention can quickly establish a connection between the two parts. The punching tool can be of robust construction so that the risk of tool breakage is largely eliminated is eliminated.

Eine alternative Ausführungsform des Stanzwerkzeuges, mit der sich gleich gute Resultate erzielen lassen, wie mit dem beschriebenen Werkzeug quadratischen Querschnitts' besitzt mehrere stutzenartige Stifte, deren Stirnflächen mit dem Sockel zum Eingriff kommen und die lokalen Verformungen bewirken. Fig. 4 zeigt eine typische auf diese Art hergestellte Verformung.An alternative embodiment of the punching tool with which The same good results can be achieved as with the tool described square Cross-section 'has several nozzle-like pins, the end faces of which with the base come into engagement and cause the local deformations. Fig. 4 shows a typical one deformation produced in this way.

In beiden beschriebenen Fällen ist es möglich, eine gasdichte Verbindung zu erzielen, wenn einleitend die beiden Teile in einem strammen Pass-Sitz ineinander gefügt werden, da es sicli gezeigt hat, daß die nachträgliche lokale Verformung des Sockels die Dichtwirkung des strammen Pass-Sitzes nicht beeinträchtigt.In both cases described, it is possible to use a gas-tight connection to be achieved when introducing the two parts into one another in a tight fit joined as it has shown that the subsequent local Deformation of the base does not affect the sealing effect of the tight fit.

Claims (5)

P;nsprücheP; n claims 1. Verfahren zur Befestigung eines ersten Kunststoffteiles in einem Sockel eines zweiten Kunststoffteiles, bei dem das erste Teil derart in den Sockel des zweiten Teiles eingeführt wird, daß eine nach außen gerichtete Stirnfläche des ersten Teiles relativ zur Öffnungsebene des Sockels nach innen zurückversetzt ist, und anschließend auf das zweite aus kaltverformbaren Kunststoff hergestellte Teil in Richtung der Einführung des ersten Teiles ein Druck ausgeübt wird, dadurch gekennzeichnet, daß der Druck an mehreren am Umfang der Öffnung des Sockels (3) verteilten Stellen derart ausgeübt wird, daß das zweite Teil (2) lokalverformt wird und Teile (7) seines Materials radial nach innen über die Stirnfläche (4) des ersten Teiles (1) fließen.1. Method for fastening a first plastic part in one Base of a second plastic part, in which the first part is in this way in the base of the second part is introduced that an outwardly directed end face of the the first part is set back inward relative to the opening plane of the base, and then onto the second part made of cold-deformable plastic a pressure is exerted in the direction of the introduction of the first part, characterized in that, that the pressure at several points distributed around the circumference of the opening of the base (3) is exercised in such a way that the second part (2) is locally deformed and parts (7) of his Material flow radially inwards over the end face (4) of the first part (1). 2. Verfahren nach Anspruch 1, bei dem das erste Teil und der Sockel im zweiten Teil kreisförmigen Querschnitt besitzen, dadurch gekennzeichnet, daß der Verformungsdruck mittels eines werkzeuges quadratischen Querschnitte aufgebracht wird, dessen vier Ecken mit dem zweiten Teil (2) zum Eingriff kommen.2. The method of claim 1, wherein the first part and the base have a circular cross-section in the second part, characterized in that the deformation pressure is applied by means of a square cross-section tool whose four corners come into engagement with the second part (2). 3. Verfahren nach Anspruch 1 dadurch getennzeichnet, daß der Verformungsdruck mittels eines Werkzeuges mit mehreren kurzen, dicken Stiften ausgeübt wird, deren Stirnflachen mit dem zweiten Teil (2) zum Eingriff kommen und die lokalen Verformungen bewirken.3. The method according to claim 1, characterized in that the deformation pressure is exercised by means of a tool with several short, thick pins, whose End faces come into engagement with the second part (2) and the local deformations cause. 4. Verfahren nach einem der Ansprüche 1 bis 3 dadurch gekennzeichnet, daß die beiden Teile (1; 2) das Ventilgehäuse und die Ventilkappe eines Sprühventiles einer Sprühdose sind.4. The method according to any one of claims 1 to 3, characterized in that that the two parts (1; 2) the valve housing and the valve cap of a spray valve one Aerosol cans. 5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das erste Teil (l) mit dem Sokkel (3) des zweiten Teiles (2) einen strammen Pass-Sitz bildet.5. The method according to any one of claims 1 to 4, characterized in that that the first part (l) with the base (3) of the second part (2) one tight Forms fit.
DE19712105644 1971-02-06 1971-02-06 Bonding of plastic parts - by cold pressing the parts until material flows Pending DE2105644A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712105644 DE2105644A1 (en) 1971-02-06 1971-02-06 Bonding of plastic parts - by cold pressing the parts until material flows

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712105644 DE2105644A1 (en) 1971-02-06 1971-02-06 Bonding of plastic parts - by cold pressing the parts until material flows

Publications (1)

Publication Number Publication Date
DE2105644A1 true DE2105644A1 (en) 1972-10-05

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ID=5798010

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712105644 Pending DE2105644A1 (en) 1971-02-06 1971-02-06 Bonding of plastic parts - by cold pressing the parts until material flows

Country Status (1)

Country Link
DE (1) DE2105644A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000029200A1 (en) * 1998-11-17 2000-05-25 C.I.M.A. Compagnia Italiana Molle Acciaio S.P.A. Method for making a friction damper for linen washing machine, and the friction damper made thereby

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000029200A1 (en) * 1998-11-17 2000-05-25 C.I.M.A. Compagnia Italiana Molle Acciaio S.P.A. Method for making a friction damper for linen washing machine, and the friction damper made thereby

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