DE3134547A1 - Device for the continuous injection encapsulation of electrical or mechanical elements arranged on endless strips - Google Patents

Device for the continuous injection encapsulation of electrical or mechanical elements arranged on endless strips

Info

Publication number
DE3134547A1
DE3134547A1 DE19813134547 DE3134547A DE3134547A1 DE 3134547 A1 DE3134547 A1 DE 3134547A1 DE 19813134547 DE19813134547 DE 19813134547 DE 3134547 A DE3134547 A DE 3134547A DE 3134547 A1 DE3134547 A1 DE 3134547A1
Authority
DE
Germany
Prior art keywords
wheel
plate
electrical
mechanical elements
elements arranged
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.)
Granted
Application number
DE19813134547
Other languages
German (de)
Other versions
DE3134547C2 (en
Inventor
Gerhard 8520 Erlangen Lutz
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE19813134547 priority Critical patent/DE3134547A1/en
Priority to JP14901382A priority patent/JPS5845920A/en
Publication of DE3134547A1 publication Critical patent/DE3134547A1/en
Application granted granted Critical
Publication of DE3134547C2 publication Critical patent/DE3134547C2/de
Granted 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

For the continuous injection encapsulation of electrical or mechanical elements arranged on endless strips, with a thermoset or thermoplastic composition, the device according to the invention consists of a wheel (14) which is rotatable on a shaft (15). The running surface (13) of the wheel (14) is provided with depressions (mould cavities) (12) extending parallel to the shaft. The depressions (12) are enclosed tangentially and sealed by a fixed plate (16) adapted to the radius of curvature of the running surface (13) of the wheel (14). An inlet opening (17) for the plastic is provided at the start of the plate (16). <IMAGE>

Description

Vorrichtung zum kontinuierlichen Umspritzen von aufDevice for continuous overmolding of on

Endlosstreifen angeordneten elektrischen oder mechanischen Elementen Die Erfindung bezieht sich auf eine Vorrichtung zum kontinuierlichen Umspritzen von auf Endlosstreifen angeordneten elektrischen oder mechanischen Elementen mit Kunststoffmasse aus Duro- oder Thermoplasten.Electrical or mechanical elements arranged in endless strips The invention relates to a device for continuous overmolding of electrical or mechanical elements arranged on endless strips Plastic compound made from thermosets or thermoplastics.

Elektrische Bauelemente z.B. Dioden, Transistoren, integrierte Schaltkreise, Kondensatoren, Widerstände usw.Electrical components e.g. diodes, transistors, integrated circuits, Capacitors, resistors, etc.

oder mechanische Bauelemente, wie Trägerstreifen für elektrische Kontaktstücke, werden umhüllt, um sie zu schützen oder ihnen ihre endgültigen geometrischen Abmessungen zu geben. Um die Montage zu vereinfachen, durchlaufen solche Bauelemente häufig auf einem Endlosstreifen gegurtet die Fertigung. Sie werden teilweise erst beim Abnehmer von dieser Verbindung gelöst.or mechanical components, such as carrier strips for electrical contact pieces, are enveloped to protect them or to give them their final geometrical dimensions admit. To simplify assembly, such components often go through the production taped on an endless strip. They are partly only when Customers released from this connection.

Das Umpressen und Umspritzen von Bauelementen oder Kleinteilen in der Elektrotechnik oder in der Mechanik ist an sich bekannt. Es werden dazu Werkzeuge#verwendet, die öffnen und schließen. In das geöffnete Werkzeug werden ein oder mehrere Teile eingelegt (DE-AS 25 14 488).The overmolding and overmolding of components or small parts in electrical engineering or mechanics is known per se. Tools # are used for this, which open and close. One or more parts are placed in the opened tool inserted (DE-AS 25 14 488).

Nach dem Schließen des Werkzeugs werden die Teile mit Kunststoff umhüllt durch Pressen oder Spritzen. Sie können erst nach dem öffnen des Werkzeugs entnommen werden.After the mold is closed, the parts are encased in plastic by pressing or spraying. They can only be removed after opening the mold will.

Die bekannten Verfahren und Vorrichtungen sind wegen der hohen nicht beeinflussbaren Fertigungszeiten wie z.B.The known methods and devices are not because of the high influenceable manufacturing times such as

Werkzeug schließen, Werkzeug öffnen, Teile entnehmen, Werkzeug reinigen, Teile einlegen und durch die Aushärtezeiten häufig sehr kostenungünstig. Im Gegensatz dazu stehen in zunehmendem Maße die Forderungen nach umspritzten oder umpressten Bauelementen mit exakten automatengerechten Außenabmessungen.Close tool, open tool, remove parts, clean tool, Insert parts and often very inexpensive due to the curing times. In contrast in addition, there are increasing demands for overmolded or overmolded Components with precise external dimensions that are suitable for machines.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der genannten Art zu schaffen, die es ermöglicht, kostengünstig elektrische oder mechanische Elemente mit einer Kunststoffhülle derart zu versehen, daß sie automatengerechte Außenabmessungen aufweisen.The invention is therefore based on the object of providing a device of to create mentioned type, which makes it possible to inexpensively electrical or mechanical To provide elements with a plastic cover in such a way that they are suitable for machines Have external dimensions.

Gemäß der Erfindung wird aie Aufgabe dadurch gelöst, daß ein auf einer Achse drehbares Rad vorgesehen ist, daß die Lauffläche des Rades mit achsparallel verlaufenden Vertiefungen (Formnester) versehen ist, daß ferner die Vertiefungen über einen vorbestimmten Bereich des Radumfanges von einer feststehenden dem Krümmungsradius der Lauffläche angepaßten Platte tangierend umfaßt und abgedichtet sind und daß am Anfang der Platte eine Einlaßöffnung für den Kunststoff vorgesehen ist.According to the invention, aie object is achieved in that a on one Axis rotatable wheel is provided that the running surface of the wheel with axially parallel extending depressions (mold cavities) is provided that also the depressions over a predetermined range of the wheel circumference from a fixed radius of curvature the tread adapted plate includes tangent and sealed and that an inlet opening for the plastic is provided at the beginning of the plate.

Die tangierend umfassende und abdichtende Platte kann z.B. aus Bronze bestehen. Die abdichtende Platte kann z.B. den halben Radumfang umfassen.The tangentially encompassing and sealing plate can be made of bronze, for example exist. The sealing plate can, for example, encompass half the circumference of the wheel.

Die Zeichnung zeigt schematisch und in Perspektive ein bevorzugtes Ausführungsbeispiel einer Vorrichtung der Erfindung. Es zeigt FIG 1 eine perspektivische Gesamtansicht der Vorrichtung, FIG 2 einen perspektivischen Ausschnitt.The drawing shows schematically and in perspective a preferred one Embodiment of an apparatus of the invention. It shows FIG 1 a perspective Overall view of the device, FIG. 2 shows a perspective detail.

In FIG 1 und 2 sind gleiche Teile mit den gleichen Bezugsziffern bezeichnet.In Figures 1 and 2, the same parts are denoted by the same reference numerals.

Die Vorrichtung gemäß der Erfindung arbeitet wie folgt.The device according to the invention works as follows.

In der Lauffläche 13 des sich drehenden Rades 14 befinden sich parallel zur Drehachse 15 die Vertiefungen 12 bzw. Formnester, in denen die gegurteten Bauelemente 11 umspritzt werden. Die Formnester 12 werden über den halben Radumfang von einer feststehenden, dem Krümmungsradius der Lauffläche 13 angepaßten Platte 16 tangierend umschlossen. Durch diese Platte 16 werden die Formnester 12 nach oben über den halben Durchmesser abgedichtet. Die gegurteten Bauelemente 11 werden eingeführt und durchlaufen in Richtung des Richtungspfeiles 20 in den Formnestern 12 liegend, von der Platte 16 abgedichtet, einen halben Radumfang, um am Ende der Platte 16 das Rad 14 wieder zu verlassen. Am Anfang der Platte 16 ist eine öffnung 17 vorgesehen, durch die der Kunststoff aus einer Spritzmaschine 18 eingespritzt wird. Das Rad 14 wird durch den Antrieb 19 in Bewegung gesetzt. Die kontinuierlich an der Einspritzstelle 17 vorbeilaufenden, in den Formnestern 12 des Rades 14 liegenden Bauelemente 11 werden dadurch umhüllt. Die zum Aushärten nötige Verweilzeit der umspritzten Teile im geschlossenen Werkzeug kann sowohl bei der Festlegung des Raddurchmessers als auch durch eine Regelung der Raddrehzahl variiert werden.In the running surface 13 of the rotating wheel 14 are parallel to the axis of rotation 15, the recesses 12 or cavities in which the taped components 11 are overmolded. The mold cavities 12 are over half the wheel circumference of a fixed plate 16 adapted to the radius of curvature of the running surface 13 enclosed. Through this plate 16, the mold cavities 12 are up over the half Diameter sealed. The taped components 11 are inserted and passed through lying in the direction of the arrow 20 in the mold cavities 12, from the plate 16 sealed, half a wheel circumference, to the end of the plate 16 the wheel 14 again to leave. At the beginning of the plate 16 an opening 17 is provided through which the plastic is injected from an injection molding machine 18. The wheel 14 is through the drive 19 is set in motion. The continuous at the injection point 17 Passing components 11 lying in the mold cavities 12 of the wheel 14 are enveloped thereby. The dwell time of the encapsulated parts required for curing in the closed Tool can be used both when defining the wheel diameter and through a Regulation of the wheel speed can be varied.

3 Patentansprüche 2 Figur3 claims 2 figure

Claims (3)

Patentansprüche 9 Vorrichtung zum kontinuierlichen Umspritzen von auf Endlosstreifen angeordnetea elektrischen oder mechanischen Elementen mit #unststoffmassen aus Duro- oder Thermoplasten, d a d u r c h g e k e n n z e i c h n e t daß ein auf einer Achse (15) drehbares Rad (14) vorgesehen ist, daß die Lauffläche (13) des Rades (14) mit achsparallel verlaufenden Vertiefungen (Formnester) (12) über einen vorbestimmten Bereich des Radumfangs von einer feststehenden, dem Krummungsradius der Lauffläche (13) angepaßten Platte (16) tangierend umfaßt und abgedichtet sind und daß am Anfang der Platte (16) eine Einlaßöffnung (1#7) für den Kunststoff vorgesehen ist.Claims 9 device for the continuous encapsulation of Arranged on endless strips of electrical or mechanical elements with plastic compounds made of thermosets or thermoplastics, that is a on an axle (15) rotatable wheel (14) is provided that the running surface (13) of the wheel (14) with axially parallel depressions (mold cavities) (12) a predetermined range of the wheel circumference from a fixed, the radius of curvature the tread (13) adapted plate (16) tangentially encompassed and sealed and that at the beginning of the plate (16) an inlet opening (1 # 7) is provided for the plastic is. 2. Vorrichtung nach Anspruch 1, d a d u r c h g e -k e n n z e i c h n e t , daß die Platte (16) aus Bronze besteht.2. Apparatus according to claim 1, d a d u r c h g e -k e n n z e i c h n e t that the plate (16) consists of bronze. 3. Vorrichtung nach Anspruch 1 oder 2, d a d u r c h g e k e n n z ei c h n e t , daß die Platte (16) die Vertiefungen (12) über den halben Radumfang umfaßt.3. Apparatus according to claim 1 or 2, d a d u r c h g e k e n n z ei c h n e t that the plate (16) the recesses (12) over half the wheel circumference includes.
DE19813134547 1981-09-01 1981-09-01 Device for the continuous injection encapsulation of electrical or mechanical elements arranged on endless strips Granted DE3134547A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19813134547 DE3134547A1 (en) 1981-09-01 1981-09-01 Device for the continuous injection encapsulation of electrical or mechanical elements arranged on endless strips
JP14901382A JPS5845920A (en) 1981-09-01 1982-08-27 Device for continuously spraying up electric part or mechanical part arranged onto endless strip piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813134547 DE3134547A1 (en) 1981-09-01 1981-09-01 Device for the continuous injection encapsulation of electrical or mechanical elements arranged on endless strips

Publications (2)

Publication Number Publication Date
DE3134547A1 true DE3134547A1 (en) 1983-03-10
DE3134547C2 DE3134547C2 (en) 1987-10-29

Family

ID=6140576

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813134547 Granted DE3134547A1 (en) 1981-09-01 1981-09-01 Device for the continuous injection encapsulation of electrical or mechanical elements arranged on endless strips

Country Status (2)

Country Link
JP (1) JPS5845920A (en)
DE (1) DE3134547A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3320700A1 (en) * 1983-06-08 1984-12-13 Siemens AG, 1000 Berlin und 8000 München Process for plastics covering of electrical components

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798253A (en) * 1950-04-18 1957-07-09 Us Rubber Co Molding apparatus
US3763300A (en) * 1969-11-19 1973-10-02 Motorola Inc Method of encapsulating articles
DE2738916A1 (en) * 1977-08-29 1979-03-15 Amp Inc Injection moulding onto cavitied wheel - each cavity having cores operated by rotation of the wheel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798253A (en) * 1950-04-18 1957-07-09 Us Rubber Co Molding apparatus
US3763300A (en) * 1969-11-19 1973-10-02 Motorola Inc Method of encapsulating articles
DE2738916A1 (en) * 1977-08-29 1979-03-15 Amp Inc Injection moulding onto cavitied wheel - each cavity having cores operated by rotation of the wheel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3320700A1 (en) * 1983-06-08 1984-12-13 Siemens AG, 1000 Berlin und 8000 München Process for plastics covering of electrical components

Also Published As

Publication number Publication date
DE3134547C2 (en) 1987-10-29
JPS5845920A (en) 1983-03-17

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee