SE469686B - DEVICE FOR FORMING MACHINES AS A GRIP ORGANIZING AND AT THE SAME PART OF THE FORM - Google Patents
DEVICE FOR FORMING MACHINES AS A GRIP ORGANIZING AND AT THE SAME PART OF THE FORMInfo
- Publication number
- SE469686B SE469686B SE9003519A SE9003519A SE469686B SE 469686 B SE469686 B SE 469686B SE 9003519 A SE9003519 A SE 9003519A SE 9003519 A SE9003519 A SE 9003519A SE 469686 B SE469686 B SE 469686B
- Authority
- SE
- Sweden
- Prior art keywords
- mold
- gripping member
- disc
- molding
- article
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/263—Preparing and using a stamper, e.g. pressing or injection molding substrates
-
- 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
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0003—Discharging moulded articles from the mould
- B29C37/0007—Discharging moulded articles from the mould using means operable from outside the mould for moving between mould parts, e.g. robots
-
- 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
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
-
- 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
- B29C45/40—Removing or ejecting moulded 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
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C2045/4068—Removing or ejecting moulded articles using an auxiliary mould part carrying the moulded article and removing it from the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
469 686 2 Syftet med uppfinningen är därför att åstadkomma en anord- ning, som griper alstren eller skivorna på ett annorlunda sätt och därmed möjliggör en förkortning av oykeltiderna men även medför uppnåendet av ett flertal andra fördelar. The object of the invention is therefore to provide a device which grips the articles or discs in a different way and thus enables a shortening of the cycle times but also entails the achievement of a number of other advantages.
Detta uppnås enligt uppfinningen i huvudsak därigenom att griporganet är utfört skivliknande med minst ett genomgående hål med en omkretskontur, som överensstämmer med den hos det alster eller den skiva, som skall framställas, och anordnat att i infört läge mellan formhalvorna utgöra en tredje formdel, vilken bildar formrummets yttre begränsning och av vilken det tillverkade alstret eller skivan kommer att kvarhållas efter formningen och därmed kunna avlägsnas ur formningszonen.This is achieved according to the invention essentially in that the gripping means is made disc-like with at least one through-hole with a circumferential contour corresponding to that of the article or disc to be produced, and arranged to form a third mold part in the inserted position between the mold halves, which forms the outer boundary of the mold space and from which the manufactured article or disc will be retained after the molding and thus be able to be removed from the molding zone.
Den största fördelen med uppfinningen är att oykeltiden kan förkortas kraftigt, ner till ca 4,5 sekunder tack vare att formhalvorna inte längre behöver föras isär så långt på grund av den slanka formen hos griporganet och att griporganet griper alstret eller skivan kring dess omkretskant. Detta medför även ett flertal ytterligare fördelar och möjligheter. En sådan för- del är att inloppstappen kan slås bort från alstret eller skivan utanför formverktyget, vilket bidrar till att förkorta cykel- tiden.The main advantage of the invention is that the cycle time can be greatly shortened, down to about 4.5 seconds due to the mold halves no longer having to be disassembled so far due to the slender shape of the gripping member and that the gripping member grips the article or disc around its circumferential edge. This also brings a number of additional benefits and opportunities. One such advantage is that the inlet pin can be removed from the article or disc outside the mold tool, which helps to shorten the cycle time.
Uppfinningen beskrivs närmare nedan under hänvisning till bifogade ritning, på vilken fig 1 är en planvy av en enkel ut- föringsform av formverktyg och griporgan enligt uppfinningen, varvid den ena formhalvan avlägsnats, fig 2 är en förstorad och delvis sektionerad sidovy av formverktygets formhalvor med mellanliggande griporgan, där formhalvorna är skilda åt efter en just avslutad formning och med det formade alstret kvarsit- tande i griporganet, fig 3 är en vy liknande den i fig 2 men med formhalvorna sammanförda mot griporganet, så att formverk- tyget är redo för en formning (ett s.k. skott), fig 4 är en planvy av en annan utföringsform av griporganet enligt uppfin- ningen, vilket är placerat i en s.k. trepelarpress, och fig 5 är en sektionerad sidovy av griporganet, tagen längs linjen V-V i fig 5.The invention is described in more detail below with reference to the accompanying drawing, in which Fig. 1 is a plan view of a simple embodiment of mold tools and gripping means according to the invention, one mold half being removed, Fig. 2 is an enlarged and partially sectioned side view of the mold halves with intermediate gripping means, where the mold halves are separated after a just finished molding and with the molded article remaining in the gripping means, Fig. 3 is a view similar to that of Fig. 2 but with the mold halves joined to the gripping means, so that the molding tool is ready for a molding (a so-called shot), Fig. 4 is a plan view of another embodiment of the gripping member according to the invention, which is placed in a so-called triple press, and Fig. 5 is a sectional side view of the gripping means, taken along the line V-V in Fig. 5.
I fig 1 - 3 visas en första utföringsform av ett formverk- tyg 1 med två mot och från varandra rörliga formhalvor 2, 3 med 469 686 3 ett mellanliggande formrum 4 samt ett i mellanrummet mellan formhalvorna 2, 3 införbart griporgan 5 för avlägsnande av ett färdigt alster 6 ur formrummet 4. Gríporganet 6 är enligt upp- finningen utfört skivliknande (se fig 2 och 3) med minst ett genomgående hål 7 med en omkretskontur 8, som överensstämmer med den hos det alster 6, som skall framställas. Hålet 7 är företrädesvis utfört i en insats 9, som är infäst i griporganet 5, och som lämpligen är tillverkad av titan.Figs. 1-3 show a first embodiment of a molding tool 1 with two mold halves 2, 3 movable towards and away from each other with an intermediate mold space 4 and a gripping member 5 insertable in the space between the mold halves 2, 3 for removing a finished article 6 from the mold space 4. According to the invention, the gripping member 6 is made disc-like (see Figs. 2 and 3) with at least one through hole 7 with a circumferential contour 8, which corresponds to that of the article 6 to be produced. The hole 7 is preferably made in an insert 9, which is attached to the gripping member 5, and which is suitably made of titanium.
Ehuru griporganet 5 enligt uppfinningen i princip kan ha ett enda genomgående hål 7 har i fig 1 - 3 visats en utförings- form, vid vilken griporganet 5 är utfört såsom en rektangulär skiva, som är försedd med två hål 7, vilka är upptagna i insat- ser 9 och avsedda att växelvis införas mellan 'verktygets 1 formhalvor 2, 3.Although the gripping member 5 according to the invention can in principle have a single through hole 7, an embodiment is shown in Figs. 1-3, in which the gripping member 5 is designed as a rectangular disc, which is provided with two holes 7, which are accommodated in inserts. see 9 and intended to be inserted alternately between the mold halves 2, 3 of the tool 1.
I fig 2 visas hur det just formade alstret eller skivan 6 hålls kvar i hålet 7 i en av griporganets 5 insatser 9. Den alstrets omkretskontur 8 bestämmande kanten på insatsen 9 är företrädesvis något konkav - sett i tvärsektion - för bättre kvarhållning av alstret 6. Formverktygets 1 två formhalvor 2, 3 visas i ett tillbakadraget läge, i vilket det färdiga alstret 6 kan föras ut ur verktygets 1 formningszon och :L vilket den andra tömda insatsen 9 med sitt hål 7 kan föras in i formnings- zonen för nästföljande formning.Fig. 2 shows how the newly formed article or disc 6 is held in the hole 7 in one of the inserts of the gripping member 5 9. The circumferential contour 8 of the article defining the insert 9 is preferably somewhat concave - seen in cross section - for better retention of the article 6. The two mold halves 2, 3 of the mold tool 1 are shown in a retracted position, in which the finished article 6 can be taken out of the molding zone of the tool 1 and in which the second emptied insert 9 with its hole 7 can be inserted into the molding zone for subsequent molding.
I fig 3 visas tydligt att griporganet 5 bildar en tredje formdel, medan den ena formhalvan 2 är försedd med en matris 10 och den andra formhalvan 3 är försedd med en i formhalvans mitt anordnad inloppskanal 11 för plastmaterial, vilket ^vid formningen pressas mot bl a matrisen 10. Verktygets 1 formhalva 3 bildar en spegelsida 12, vilken är försedd med ett cirkulärt utsprång 13, vilket ger en tjockleksminskande intryckning' i alstret 6 vid sprutningen. Intryckningen åstadkommer en mate- rialförsvagning för att underlätta avlägsnandet av en på det färdigformade alstret 6 kvarstående inloppstapp 14. Vid till- verkningen av' kompaktskivor har det cirkulära utsprånget 13 samma diameter som den färdiga skivans centrumhål.Fig. 3 clearly shows that the gripping member 5 forms a third mold part, while one mold half 2 is provided with a matrix 10 and the other mold half 3 is provided with an inlet channel 11 for plastic material arranged in the middle of the mold half, which during molding is pressed against e.g. the matrix 10. The mold half 3 of the tool 1 forms a mirror side 12, which is provided with a circular projection 13, which gives a thickness-reducing impression in the article 6 during the spraying. The indentation provides a material weakening to facilitate the removal of an inlet pin 14 remaining on the finished product 6. In the manufacture of compact discs, the circular projection 13 has the same diameter as the center hole of the finished disc.
I fig 4 visas en föredragen utföringsform av griporganet 5, vilket är utfört i form av en cirkulär skiva. I denna ut- 469 686 4 föringsform är griporganet 5 försett med i omkretsled jämnt fördelade genomgående hål 7. II denna figur är griporganet 5 försett med sex hål 7. Griporganet 5 visas placerat i en s.k. trepelarpress, vars pelare 15 visas i snitt. Såsom framgår av fig 4 är det mycket fördelaktigt att placera ett cirkulärt grip- organ i en trepelarpress men en av pelarna i griporganets cent- rum.Fig. 4 shows a preferred embodiment of the gripping member 5, which is made in the form of a circular disc. In this embodiment the gripping member 5 is provided with circumferentially evenly distributed through holes 7. In this figure the gripping member 5 is provided with six holes 7. The gripping member 5 is shown placed in a so-called three-pillar press, whose pillar 15 is shown in section. As can be seen from Fig. 4, it is very advantageous to place a circular gripping member in a three-pillar press but one of the pillars in the center of the gripping member.
I fig 5 visas hur instatserna 9 är anordnade i griporganet 5 och hur griporganet är anordnat i förhållande till formverk- tyget 1.Fig. 5 shows how the inserts 9 are arranged in the gripping member 5 and how the gripping member is arranged in relation to the mold 1.
Griporganets 5 hål 7 är anordnade att successivt och steg- vis föras in i verktygets 1 formningszon. I denna cirkulära och föredragna utföringsform av 'griporganet 5 matas de färdiga alstren 6 stegvis ut ur formverktyget 1.The holes 7 of the gripping member 5 are arranged to be inserted successively and stepwise into the forming zone of the tool 1. In this circular and preferred embodiment of the gripping member 5, the finished articles 6 are fed stepwise out of the forming tool 1.
Eftersom alstren 6 efter formningen sitter fast med sin omkretskant i insatsernas 9 hål 7 kan de tas ut ur formrummet 4 efter en kortare svalningstid än ïmed. känd. teknik. Dessutom tillåts alstren 6 att svalna ytterligare före deras avlägsnande eftersom de kan sitta kvar i insatserna 9 under större delen av griporganets vridningsrörelse, och bortslagningen av inloppstap- pen 14 kan ske med ett svalare alster, då det är mindre känsligt för skador. Eventuell ytterligare bearbetning kan utföras medan alstret 6 sitter kvar i griporganet 1. Alstren 6 avlägsnas ur insatserna 9 på känt sätt. f:Since the articles 6 after the molding are fixed with their circumferential edge in the holes 7 of the inserts 9, they can be taken out of the mold space 4 after a shorter cooling time than here. known. technique. In addition, the articles 6 are allowed to cool further before their removal as they can remain in the inserts 9 during most of the rotational movement of the gripping member, and the removal of the inlet pin 14 can take place with a cooler article, as it is less susceptible to damage. Any further processing can be performed while the article 6 remains in the gripping member 1. The articles 6 are removed from the inserts 9 in a known manner. f:
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9003519A SE469686B (en) | 1990-11-05 | 1990-11-05 | DEVICE FOR FORMING MACHINES AS A GRIP ORGANIZING AND AT THE SAME PART OF THE FORM |
PCT/SE1991/000744 WO1992007706A1 (en) | 1990-11-05 | 1991-11-05 | A device in injection moulding machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9003519A SE469686B (en) | 1990-11-05 | 1990-11-05 | DEVICE FOR FORMING MACHINES AS A GRIP ORGANIZING AND AT THE SAME PART OF THE FORM |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9003519D0 SE9003519D0 (en) | 1990-11-05 |
SE9003519L SE9003519L (en) | 1992-05-06 |
SE469686B true SE469686B (en) | 1993-08-23 |
Family
ID=20380823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9003519A SE469686B (en) | 1990-11-05 | 1990-11-05 | DEVICE FOR FORMING MACHINES AS A GRIP ORGANIZING AND AT THE SAME PART OF THE FORM |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE469686B (en) |
WO (1) | WO1992007706A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4213655C2 (en) * | 1992-04-25 | 1994-08-18 | Karl Hehl | Mold clamping unit for a plastic injection molding machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2701562A1 (en) * | 1977-01-15 | 1978-07-20 | Teldec Telefunken Decca | Pressing gramophone records without pits - by moulding inside V=ring which limits flow and takes applied pressure during cooling |
JP2642158B2 (en) * | 1988-08-16 | 1997-08-20 | 住友重機械工業株式会社 | Mold for optical disk substrate molding |
-
1990
- 1990-11-05 SE SE9003519A patent/SE469686B/en not_active IP Right Cessation
-
1991
- 1991-11-05 WO PCT/SE1991/000744 patent/WO1992007706A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO1992007706A1 (en) | 1992-05-14 |
SE9003519L (en) | 1992-05-06 |
SE9003519D0 (en) | 1990-11-05 |
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