DE1196351B - Mold for swelling plastics - Google Patents
Mold for swelling plasticsInfo
- Publication number
- DE1196351B DE1196351B DEL43503A DEL0043503A DE1196351B DE 1196351 B DE1196351 B DE 1196351B DE L43503 A DEL43503 A DE L43503A DE L0043503 A DEL0043503 A DE L0043503A DE 1196351 B DE1196351 B DE 1196351B
- Authority
- DE
- Germany
- Prior art keywords
- groove
- mold
- strip
- swelling
- filling
- 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
Links
- 229920003023 plastic Polymers 0.000 title claims description 15
- 239000004033 plastic Substances 0.000 title claims description 15
- 230000008961 swelling Effects 0.000 title claims description 10
- 238000005266 casting Methods 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000005429 filling process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/581—Closure devices for pour holes
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
Int. α.:Int. α .:
B 29c B 29c
Deutsche KL: 39 al- 1/00 German KL: 39 al- 1/00
Nummer:
Aktenzeichen:
Anmeldetag:
Auslegetag:Number:
File number:
Registration date:
Display day:
1196 351
L43503X/39a2
22. November 1962
8. JuM 19651196 351
L43503X / 39a2
November 22, 1962
8. JuM 1965
Die Erfindung bezieht sich auf eine Gießform für quellende Kunststoffe.The invention relates to a mold for swelling plastics.
Beim Vergießen von quellenden Kunststoffen in Gießformen tritt das Problem auf, daß die aufquellenden Kunststoffe aus der offenen EinfüUöffnung oder -rille herauszudringen suchen und dadurch Materialverluste eintreten bzw. Strukturveränderungen auftreten, die nicht gewollt sind.When potting swelling plastics in casting molds, the problem arises that the swelling Try to get plastics out of the open insertion opening or groove and thereby lose material occur or structural changes occur that are not wanted.
Die Erfindung bezweckt, diesen Mangel zu beseitigen, und sie besteht darin, daß in der Wandung der Gießform ein entsprechend der Form der Einfüllöffnung oder -rille zugeschnittener Lappen, Streifen, auch abgewinkelter Streifen, aus elastischem Werkstoff derart einseitig verankert ist, daß der Streifen oder das Profil beim Einfüllen des Kunststoffs die Einfüllöffnung oder -rille freigibt, durch den aufquellenden Kunststoff jedoch von unten gegen die Formwand angedrückt wird und so die Einfüllöffnung oder -rille verschließt. Um dabei den Luftaustritt zu ermöglichen, wird der Streifen oder Lap- ao pen vorzugsweise mit feinen Luftlöchern durchsetzt.The invention aims to eliminate this deficiency, and it consists in the fact that in the wall of the casting mold a corresponding to the shape of the filling opening or groove cut flaps, strips, also angled strips, made of elastic Material is anchored on one side in such a way that the strip or the profile when filling the plastic the filling opening or groove releases, but from below against the swelling plastic Mold wall is pressed and thus closes the filling opening or groove. To do this the air outlet To enable the strip or lap ao pen is preferably interspersed with fine air holes.
In der Zeichnung ist der Gegenstand der Erfindung in zwei Darstellungen veranschaulicht:In the drawing, the subject matter of the invention is illustrated in two representations:
F i g. 1 zeigt eine zweiteilige Form mit einem derartig verankerten, abgewinkelten Streifen; F i g. 2 veranschaulicht den Füllvorgang.F i g. 1 shows a two-part mold with an angled strip anchored in this way; F i g. 2 illustrates the filling process.
Im dargestellten Ausführungsbeispiel besteht die Form aus zwei Hälften 1, 2, mit der ein Strang aus quellendem Kunststoff gegossen werden soll. Diese Form besitzt eine konisch gehaltene Einfüllrille 3, in die der Kunststoff mittels eines Trichters 4 eingegossen wird. In die obere Wand der einen Formhälfte 1 ist der Rand 5 eines elastischen, abgewinkelten Streifens eingelassen, dessen andere Streifenhälfte 6 freitragend ist.In the illustrated embodiment, the mold consists of two halves 1, 2, with which a strand of swelling plastic is to be cast. This shape has a conically held filling groove 3 into which the plastic is poured by means of a funnel 4. In the upper wall of one mold half 1, the edge 5 of an elastic, angled strip is embedded, the other strip half 6 is self-supporting.
Beim Eingießen des Kunststoffs in den Trichter 4 bzw. in die Rille drückt sich der Streifen 6 in die punktiert gezeichnete Lage 6 weg und gibt somit die Gießform für quellende KunststoffeWhen the plastic is poured into the funnel 4 or into the groove, the strip 6 is pressed into the dotted line 6 is gone and thus gives the mold for swelling plastics
Anmelder:Applicant:
Lemförder Kunststoff G. m. b. H. & Co. K. G.,Lemförder Plastic G. m. B. H. & Co. K. G.,
Lemförde (Hann.)Lemförde (Hann.)
Als Erfinder benannt:Named as inventor:
Dipl.-Ing. Reinhold Szonn, Lemförde (Hann.) --Dipl.-Ing. Reinhold Szonn, Lemförde (Hann.) -
Eingußöffnung frei. Ist der Einfüllvorgang beendet, kehrt der Streifen 6 in seine Ausgangslage zurück und wird durch den aufquellenden Kunststoff gegen die Innenwand der Formhälften gepreßt, womit dem quellenden Kunststoff der Weg durch den Trichter bzw. die Einfüllrille versperrt ist. Kleine, in dem freitragenden Streifen 6 vorgesehene Luftöffnungen 7 lassen den Luftaustritt zu.Sprue opening free. When the filling process has ended, the strip 6 returns to its starting position and is pressed by the swelling plastic against the inner wall of the mold halves, with which the swelling plastic the way through the funnel or the filling groove is blocked. Small air openings 7 provided in the self-supporting strip 6 allow air to escape.
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL43503A DE1196351B (en) | 1962-11-22 | 1962-11-22 | Mold for swelling plastics |
| GB4600063A GB1060658A (en) | 1962-11-22 | 1963-11-21 | Improvements in and relating to moulds for plastic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL43503A DE1196351B (en) | 1962-11-22 | 1962-11-22 | Mold for swelling plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1196351B true DE1196351B (en) | 1965-07-08 |
Family
ID=7270307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEL43503A Pending DE1196351B (en) | 1962-11-22 | 1962-11-22 | Mold for swelling plastics |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1196351B (en) |
| GB (1) | GB1060658A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1704704B1 (en) * | 1967-05-16 | 1971-03-25 | Hoesch Ag | Stopper for closing foam openings in the production of foamed prefabricated building elements |
| DE4333641C1 (en) * | 1993-10-02 | 1994-07-28 | Kuesters Eduard Maschf | Application of plastic cover to cylindrical roll and casting equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3507954C1 (en) * | 1985-03-06 | 1986-08-07 | kvl Kunststoffverarbeitung GmbH, 6780 Pirmasens | Arrangement of a check valve in the sprue of a foam mold |
| DE102012003368B4 (en) * | 2012-02-22 | 2017-03-23 | Otto Bock Healthcare Gmbh | Method and device for producing a prosthetic foot or a prosthetic foot cosmetic |
-
1962
- 1962-11-22 DE DEL43503A patent/DE1196351B/en active Pending
-
1963
- 1963-11-21 GB GB4600063A patent/GB1060658A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1704704B1 (en) * | 1967-05-16 | 1971-03-25 | Hoesch Ag | Stopper for closing foam openings in the production of foamed prefabricated building elements |
| DE4333641C1 (en) * | 1993-10-02 | 1994-07-28 | Kuesters Eduard Maschf | Application of plastic cover to cylindrical roll and casting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1060658A (en) | 1967-03-08 |
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