DE2023800A1 - Tempering element for plastic mould tools consisting - of a detachable metal collar - Google Patents
Tempering element for plastic mould tools consisting - of a detachable metal collarInfo
- Publication number
- DE2023800A1 DE2023800A1 DE19702023800 DE2023800A DE2023800A1 DE 2023800 A1 DE2023800 A1 DE 2023800A1 DE 19702023800 DE19702023800 DE 19702023800 DE 2023800 A DE2023800 A DE 2023800A DE 2023800 A1 DE2023800 A1 DE 2023800A1
- Authority
- DE
- Germany
- Prior art keywords
- ring band
- cooling
- heating element
- circumference
- metal collar
- 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
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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
-
- 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
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Kühl- oder Heizelement für Plastik-Formwerkzeuge Die Erfindung betrifft ein ringbandförmiges Kühl- oder Heizelement für Plastik-Formwerkzeuge, insbesondere zum Kühlen oder Beheizen der Außenzonen von im wesentlichen zylinderförmigen F ormwerkzeugen oder -werkzeugteilen. Cooling or heating element for plastic molding tools The invention relates to an annular band-shaped cooling or heating element for plastic molding tools, in particular for cooling or heating the outer zones of essentially cylindrical molding tools or tool parts.
Es ist bekannt, Plastik-Formwerkzeuge> insbesondere Spritzguß-und Rotationsgußformen so auszubilden, daß ihre Wandungen Hohlräume enthalten, durch welche eine als Energieübertragungsmittel dienende Flüssigkeit strömt.It is known to use plastic molding tools> in particular injection molding and Rotational molds to train so that their walls contain cavities by which flows a liquid serving as an energy transfer medium.
Durch diese doppelwandige Ausbildung werden solche Formen sehr teuer. Es ist auch meist schwierig, die Hohlräume in den Formwandungen so zu gestalten, daß ein überall gleichmäßiger Flüssigkeits strom. - und?- somit ein überall gleichmäßiger Energieaustausch in der Form gewährleistet ist. Insbesondere an den Formtrennlinien sind Temperaturabweichungen häufig, Dadurch kommt es bei den Plastik-Formteilen zu Fehlern in diesen Zonen.Because of this double-walled design, such forms are very expensive. It is also usually difficult to design the cavities in the mold walls in such a way that that a uniform flow of liquid everywhere. - and? - thus a uniform one everywhere Energy exchange in the form is guaranteed. Especially on the mold parting lines Temperature deviations are common, this is what happens with molded plastic parts to errors in these zones.
Bei Rotationsschmelzformen zum Beispiel treten hier oft Perforationen in der Wand der hergestellten Plastik-Formteile auf, weil die Form an der Trennlinie kälter ist, als in den übrigen Zonen.In the case of rotary melt molds, for example, perforations often occur here in the wall of the manufactured plastic moldings because the shape at the dividing line is colder than in the other zones.
Bei Spritzgußerzeugnissen tritt die bekannte Gratbildung an der Formtrennlinie stärker auf, wenn die Form hier nicht ausreichend gekühlt wird.In the case of injection molded products, the well-known formation of burrs occurs on the mold parting line more if the mold is not cooled sufficiently here.
Daher ist es oft erforderlich, mehrere Einzelkammern in der Formwandung vorzusehen, wobei jede Kammer auf eine bestimmte Zone der Forminnenwand wirkt. Dadurch werden solche Formwerkzeuge noch erheblich teurer.It is therefore often necessary to have several individual chambers in the mold wall to be provided, each chamber acting on a specific zone of the inner wall of the mold. Through this such molding tools become considerably more expensive.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Kühl- oder Heizelement für Plastik-Formwerkzeuge zu schaffen, welches die doppelwandige Ausbildung von Plastik-Formwerkzeugen zumindest teilweise, insbesondere im Umfangsbereich bei vorwiegend zylinderförmigen Formwerkzeugen oder -werkzeugteilen erspart.The invention is therefore based on the object of a cooling or heating element for plastic molding tools, which is the double-walled design of Plastic molding tools at least partially, especially in the peripheral area with predominantly spared cylindrical molding tools or tool parts.
Diese Aufgabe wird erfindungsgemäß gelöst durch ein manschettenartiges, an einer Stelle seines Umfangs unterbrochenes, hohles Metall-Ringband, wobei nahe den an der Trennlinie zusammenstossenden Ringband-Enden je ein Schlauchanschluß angeordnet und das Ringband selbst mit an sich bekannten Mitteln zum Befestigen auf der Form ausgestattet ist.This object is achieved according to the invention by a sleeve-like, Hollow metal ring band interrupted at one point on its circumference, with near the ends of the ring band that meet at the dividing line each have a hose connection arranged and the ring band itself with known means for fastening on the form is fitted.
Die Erfindung ist anhand einer sie beispie#lsweise wiedergebenden Zeichnung näher erläutert. Der Gegenstand ist in einem Querschnitt dargestellt.The invention is illustrated by way of example Drawing explained in more detail. The object is shown in a cross section.
Das erfindungsgemäße Kühl- oder Heizelement besteht aus einem manschettenartigen, an einer Stelle seines Umfanges unterbrochenen hohlen Metall-Ringballd 1, wobei nahe den an der Trennlinie zusammenstoßenden Ringband-Enden la, lb je ein Schlauchanschluß 2, 3 angeordnet ist. Die Ringband-Enden la, lb sind als radial nach außen gebogene mit einer oder mehreren Bohrungen versehene.The cooling or heating element according to the invention consists of a sleeve-like, interrupted at one point of its circumference hollow metal ring balld 1, where near the ring band ends la, lb each meeting at the dividing line Hose connection 2, 3 is arranged. The ring band ends la, lb are as radial curved outwards with one or more bores.
Lappen ausgebildet. Zur Befestigung auf der Form 4 werden die Ringband-Enden Ìa, lb mittels einer oder mehrerer Schrauben 5 zusammengezogen.Lobes formed. The ends of the ring band are used for fastening on the form 4 Ìa, lb pulled together by means of one or more screws 5.
Das Ringband 1 wird von einem als Energieträger dienenden Strömungsmedium, vorzugsweise Ol,durchströmt, welches durch einen der Schlauchanschlüsse 2 in den Hohlraum des Ringbandes ein und aus dem anderen Schlauchanschluß 3 wieder herausfließt, Die Anwendung des Erfindungsgedankens ist nicht auf das hier beschriebene Ausführungsbeispiel beschränkt. So kann beispielsweise das manschettenförmige Ringband 1 auch an zwei Stellen seines Umfanges unterbrochen sein. Dabei können die Ringband-Enden an einer der beiden Unterbrechungen gelenkig miteinander verbunden sein.The ring band 1 is driven by a flow medium serving as an energy carrier, preferably oil, which flows through one of the hose connections 2 in the The cavity of the ring band flows in and out of the other hose connection 3, The concept of the invention is not applied to the exemplary embodiment described here limited. For example, the cuff-shaped ring band 1 can also be attached to two Places of its scope be interrupted. The ring band ends can be attached to a of the two interruptions be articulated together.
Zur Befestigung des Ringbandes auf der Form kann anstelle der Schraubverbindung der Ringband-Enden auch eine an sich bekannte Spannspange vorgesehen sein.To fasten the ring band on the form, instead of the screw connection the ring band ends can also be provided with a clamping clasp known per se.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702023800 DE2023800A1 (en) | 1970-05-15 | 1970-05-15 | Tempering element for plastic mould tools consisting - of a detachable metal collar |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702023800 DE2023800A1 (en) | 1970-05-15 | 1970-05-15 | Tempering element for plastic mould tools consisting - of a detachable metal collar |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2023800A1 true DE2023800A1 (en) | 1971-11-25 |
Family
ID=5771192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19702023800 Pending DE2023800A1 (en) | 1970-05-15 | 1970-05-15 | Tempering element for plastic mould tools consisting - of a detachable metal collar |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2023800A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5555928A (en) * | 1990-07-10 | 1996-09-17 | Tadahiro Ohmi | Liquid cooled cooling device |
-
1970
- 1970-05-15 DE DE19702023800 patent/DE2023800A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5555928A (en) * | 1990-07-10 | 1996-09-17 | Tadahiro Ohmi | Liquid cooled cooling device |
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