DE1130996B - In a vertical plane, two-part hollow mold for the production of hollow bodies, such as pipe bends, bottles, dolls and animal figures, made of thermoplastic using the blowing method - Google Patents
In a vertical plane, two-part hollow mold for the production of hollow bodies, such as pipe bends, bottles, dolls and animal figures, made of thermoplastic using the blowing methodInfo
- Publication number
- DE1130996B DE1130996B DEM43023A DEM0043023A DE1130996B DE 1130996 B DE1130996 B DE 1130996B DE M43023 A DEM43023 A DE M43023A DE M0043023 A DEM0043023 A DE M0043023A DE 1130996 B DE1130996 B DE 1130996B
- Authority
- DE
- Germany
- Prior art keywords
- blow mold
- blow
- mold
- production
- preform
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 title description 4
- 238000007664 blowing Methods 0.000 title description 2
- 229920001169 thermoplastic Polymers 0.000 title description 2
- 239000004416 thermosoftening plastic Substances 0.000 title description 2
- 239000012815 thermoplastic material Substances 0.000 claims description 6
- 238000000071 blow moulding Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 description 3
- 238000007511 glassblowing Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003466 welding 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
- B29C49/04116—Extrusion blow-moulding characterised by the die
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4242—Means for deforming the parison prior to the blowing operation
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
- B29C2049/4805—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity by closing the mould halves
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
In einer Vertikalebene zweigeteilte Hohlform zum Herstellen von Hohlkörpern, wie Rohrbogen, Flaschen, Puppen und Tierfiguren, aus thermoplastischem Kunststoff nach der Methode des Blasens Die Erfindung hat eine Hohlform zum Herstellen von Hohlkörpern aus thermoplastischem Kunststoff nach dem Blasverfahren zum Gegenstand, und zwar solchen Hohlkörpern, deren Achse vom geradlinigen Verlauf abweicht, wie Rohrkrümmer, Rohrbogen, Rohrknie, Flaschen, Puppen, Tierfiguren u. dgl.Two-part hollow mold in a vertical plane for the production of hollow bodies, such as elbows, bottles, dolls and animal figures, made of thermoplastic material according to the method of blowing. The invention has a hollow mold for producing Hollow bodies made of thermoplastic material after the blow molding process to the object, namely such hollow bodies, the axis of which deviates from the rectilinear course, such as Elbows, elbows, elbows, bottles, dolls, animal figures and the like.
Ausgegangen wird bei einer solchen Verfahrensweise von einem schlauchartigen Vorformling als Zwischenerzeugnis. Such a procedure is based on a hose-like one Preform as an intermediate product.
Man hat bereits solche Hohlkörper aus thermoplastischem Kunststoff im Spritz- und Preßverfahren hergestellt, indem in einer Spritz- oder Preßform in einer Vertikalebene geteilte Teilhohlkörper gefertigt und diese Teilhohlkörper dann an ihren Nahtstellen durch Schweißen miteinander verbunden wurden. Such hollow bodies made of thermoplastic material are already available produced in the injection and compression molding process by in an injection or compression mold in a vertical plane divided partial hollow body manufactured and then this partial hollow body were connected to each other at their seams by welding.
Das Herstellen von Hohlkörpern aus thermoplastischem Kunststoff, die in ihrer Form von der geradlinigen Vertikalachse abweichen, war bisher im Blasverfahren unter Verwendung eines schlauchartigen Vorformlings nicht möglich, da sich die übliche in einer Vertikalebene zweigeteilte Blasform hierfür nicht eignet. Würde man diese übliche Blasform zum Herstellen solcher Hohlkörper verwenden, dann würde sich das Material des schlauchartigen Vorformlings beim Einführen desselben in die Blasform an deren Krümmungswänden stauchen, und beim Aufblasen des Vorformlings würden sich an dem fertigen Hohlkörper Quetschnähte zeigen. The production of hollow bodies made of thermoplastic material, which differ in shape from the straight vertical axis, was previously in the blow molding process using a hose-like preform is not possible, since the usual Blow mold divided in two in a vertical plane is not suitable for this. You would this Use the usual blow mold to produce such hollow bodies, then that would Material of the tubular preform when it is introduced into the blow mold compress on their walls of curvature, and when inflating the preform would show pinch seams on the finished hollow body.
Um nun bei der Einführung des schlauchartigen Vorformlings in die Blasform eine Stauchung und die Bildung von Quetschnähten bei dem aufgeblasenen Hohlkörper zu vermeiden, muß der schlauchartige Vorformling vollkommen geradlinig trotz der gekrümmten Wände des Blasforminnern ohne jegliche Hemmung in die Blasform eingeführt werden können. To now with the introduction of the tubular preform in the Blow mold an upsetting and the formation of pinch seams when inflated To avoid hollow bodies, the hose-like preform must be perfectly straight despite the curved walls of the inside of the blow mold without any obstruction in the blow mold can be introduced.
Eine in der Vertikalachse geradlinige Einführung des Vorformlings in die Blasform kann ohne Hemmung ermöglicht werden, wenn die in einer Vertikalebene zweigeteilte Blasform auch noch in einer Horizontalebene geteilt ist und diese Blasformteile verschiebbar sind. A rectilinear introduction of the preform in the vertical axis into the blow mold can be made possible without inhibition if the in a vertical plane two-part blow mold is also divided in a horizontal plane and these blow mold parts are movable.
Man hat bereits in der Glasbläserei beim Herstellen von Glashohlkörpern mit einem Glasfuß, wie beispielsweise Petroleumlampen mit einem Brennstoffbehälter und einem Fuß, der an seinem Boden verbreitert ist, Formen verwendet, die nicht nur vertikal, sondern auch horizontal zweigeteilt waren. Diese in der Glasbläserei bekannten Formen eignen sich aber nicht zum Herstellen von Hohlkörpern aus thermoplastischem Kunststoff im Blasverfahren, die in ihrer Form von der geradlinigen Vertikalachse abweichen da bei diesen in der Glasbläserei verwendeten vertikal und horizontal zweigeteilten Formen die beiden unteren Teile zum Pressen des Glasfußes und die beiden oberen Teile zum Blasen des Brennstoffbehälters dienen. Auch liegen die Formteile der hergestellten Petroleumlampe stets symmetrisch zu einer geradlinig verlaufenden Mittellinie. One has already worked in glass blowing in the manufacture of hollow glass bodies with a glass base, such as a kerosene lamp with a fuel container and a foot that is widened at its bottom uses shapes that are not were divided into two parts only vertically, but also horizontally. This in the glass blowing known shapes are not suitable for the production of hollow bodies from thermoplastic Blow molding plastic whose shape depends on the straight vertical axis differ because they are used vertically and horizontally in glass blowing two-part forms the two lower parts for pressing the glass base and the both upper parts are used to blow the fuel container. The molded parts are also located of the produced kerosene lamp always symmetrical to a straight one Center line.
Zum Herstellen von Hohlkörpern aus thermoplastischem Kunststoff, die in ihrer Form von der geradlinigen Vertikalachse abweichen, ist es aber erforderlich, daß die in der horizontalen Ebene noch zusätzlich geteilte Blasform mit deren beiden Formteilen versetzt zueinander verschoben oder verdreht werden können. For the production of hollow bodies made of thermoplastic material, which deviate in shape from the straight vertical axis, it is necessary, however, that the blow mold also split in the horizontal plane with both of them Molded parts can be shifted or rotated offset to one another.
Erfindungsgemäß ist daher die in einer Vertikalebene zweigeteilte Blasform zusätzlich in einer quer zur Vertikalachse liegenden Ebene unterteilt, und die Blasformteile sind verschieb- oder drehbar, so daß der in der vertikalen Lage in die Blasform einzubringende Vorformling hemmfrei bis an den Boden der Blasform gelangt. Die auf Walzen, Rollen oder Kugeln gelagerten Formteile der Blasformhälften sind über Nuten und Leisten geführt, werden mittels an sich bekannter Mittel mechanisch bewegt, gegebenenfalls können diese Formteile auch mit dem Schließmechanismus der Blasform verbunden sein. According to the invention is therefore divided into two in a vertical plane Blow mold also subdivided in a plane perpendicular to the vertical axis, and the blow mold parts are slidable or rotatable, so that the in the vertical Position of the preform to be introduced into the blow mold without obstruction to the bottom of the blow mold got. The molded parts of the blow mold halves mounted on rollers, rollers or balls are guided over grooves and strips, are mechanical by means of known means moved, if necessary, these molded parts can also be used with the closing mechanism of the Blow mold connected.
Die vertikal zweigeteilte Blasform kann, je nach den Krümmungslinien des herzustellenden Hohlkörpers, auch nach mehreren quer zur Vertikalachse liegenden Ebenen unterteilt sein, und zwar nach schrägliegenden Ebenen. The vertically two-part blow mold can, depending on the lines of curvature of the hollow body to be produced, even after several transverse to the vertical axis Levels be subdivided according to inclined planes.
Zum Herstellen solcher Hohlkörper mit nicht geradlinig verlaufender Achse wird der schlauchartige Vorformling erst dann in die Blasform eingeführt, wenn die beiden unteren Blasformteile zu den beiden oberen Blasformteilen versetzt zueinander verschoben sind, so daß der Blasraum mit seinen Krümmungswänden in einer vertikalen, annähernd geradlinigen Achse liegt. Nach dem Einführen des Vorformlings in die so verschobenen Blasformteile werden diese Teile wieder in die Schließstellung zurückgebracht und die Blasdüse in die Blasform abgesenkt. Beim Verbringen der Formhälftenteile in die Schließstellung legt sich der in der Blasform befindliche Vorformling leicht an deren gekrümmte Wand an, was aber für den herzustellenden Hohlkörper beim Aufblasen des Vorformlings keinerlei Nachteile ergibt. For the production of such hollow bodies with a non-rectilinear Axis becomes the hose-like Only then is the preform into the blow mold introduced when the two lower blow mold parts to the two upper blow mold parts are offset from one another, so that the blow chamber with its walls of curvature lies in a vertical, approximately straight axis. After inserting the Preforms in the blow molded parts displaced in this way, these parts are again in the Returned to the closed position and lowered the blow nozzle into the blow mold. At the Bringing the mold half parts into the closed position lies in the blow mold located preform slightly on the curved wall, but what for the to be produced Hollow body does not result in any disadvantages when the preform is inflated.
Beim Zusammenführen der beiden vertikal geteilten Formhälften und Schließen wird das Material des in der Blasform befindlichen Vorformlings an seinem unteren Ende in bekannter Weise zusammengequetscht und der Vorformling hierbei auch geschlossen. In das obere offene Ende des Vorformlings wird in bekannter Weise die Blasdüse eingeführt und damit diese Öffnung gleichzeitig kalibriert. Der Vorformling kann aber auch an seinem oberen offenen Ende durch Zusammenquetschen wie am unteren Ende geschlossen werden, wobei aber so viel freier Raum bleiben muß, daß das Einführen der Blasdüse noch möglich ist. Beim Herstellen von Rohrkrümmern, Rohrknien, Rohrbogen u. dgl., die an beiden Enden offen sein müssen, wird der untere und der obere Boden des aus der Blasform ausgestoßenen fertigen Hohlkörpers abgetrennt. When merging the two vertically divided mold halves and The material of the preform located in the blow mold is closed at its the lower end is squeezed together in a known manner, and so is the preform closed. In the upper open end of the preform is in a known manner Blow nozzle introduced and thus this opening calibrated at the same time. The preform but can also be squeezed together at its upper open end as at the lower end End are closed, but so much free space must remain that the introduction the air nozzle is still possible. When making pipe bends, pipe bends, pipe bends and the like, which must be open at both ends, become the lower and upper floors of the finished hollow body ejected from the blow mold.
In der Zeichnung ist ein Ausführungsbeispiel einer Blasform mit zwei übereinanderliegenden, nach einer schrägliegenden Ebene zusätzlich geteilten Blasformteilen dargestellt. Es zeigt die Abb. 1 die beiden Blasformteile in unverschobener Stellung, Abb. 2 die beiden Blasformteile versetzt zueinander verschoben, in die ein Vorformling eingeführt ist, Abb. 3 die beiden Blasformteile, in die Schließstellung zurückgebracht, und die Abb. 4 die Blasform mit dem fertigen Hohlkörper. In the drawing is an embodiment of a blow mold with two Blow molding parts lying on top of one another, additionally divided according to an inclined plane shown. Fig. 1 shows the two blow mold parts in an unshifted position, Fig. 2 the two blow mold parts offset to each other, in which a preform is inserted, Fig. 3 the two blow mold parts, brought back into the closed position, and Fig. 4 shows the blow mold with the finished hollow body.
Die in den Abb. 1 bis 4 gezeigte Blasform ist nach einer geneigten Ebene in die beiden Formhälftena und b geteilt. Diese beiden Formhälften a und b werden gegeneinander verschoben, wie es die Abb. 2 zeigt. Durch das Gegeneinanderverschieben der beiden Formhälften a und b werden die gekrümmten Wände des Blasraumes c so verschoben, daß der aus der Auspreßdüse d austretende schlauchartige Vorformling e in den Aufblasraum c ohne Hemmung senkrecht eingeführt werden kann. Nach Einführung des Vorformlings e in den Blasraum c werden die Formhälften a und b in ihre Ausgangsstellung gemäß der Abb. 1 zurückgebracht. Nach dem Schließen der beiden Formhälften der in einer vertikalen Ebene zweigeteilten Blasform wird die Blasdüse in die obere Öffnung der Blasform abgesenkt und der Vorformling zum Hohlkörper f des herzustellenden Gegenstandes aufgeblasen. The blow mold shown in Figs. 1 to 4 is after an inclined Level divided into two mold halvesa and b. These two mold halves a and b are shifted against each other, as Fig. 2 shows. By moving them against each other of the two mold halves a and b, the curved walls of the blow chamber c are shifted so that that the hose-like preform e emerging from the extrusion nozzle d enters the inflation space c without inhibition can be inserted vertically. After introducing the preform e in the blow chamber c, the mold halves a and b are in their starting position according to of Fig. 1 brought back. After closing the two halves of the mold in one vertical plane split blow mold, the blow nozzle is in the upper opening of the Blow mold lowered and the preform to the hollow body f of the object to be produced inflated.
Beim Verbringen der beiden Formhälftena und b in die Ausgangsstellung legt sich der Vorformlinge leicht gegen die eine gekrümmte Wand der Formhälfte b, was aber keine nachteiligen Folgen hat. When bringing the two mold halvesa and b into the starting position the preform lies slightly against the one curved wall of the mold half b, but this has no negative consequences.
Zur Verhinderung einer zu großen Verschiebung der beiden Formhälftena und b liegt die zusätzliche Teilung der in der Vertikalen zweigeteilten Blasform in einer geneigten Ebene. To prevent the two mold halves from shifting too mucha and b is the additional division of the vertical two-part blow mold in an inclined plane.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM43023A DE1130996B (en) | 1959-10-13 | 1959-10-13 | In a vertical plane, two-part hollow mold for the production of hollow bodies, such as pipe bends, bottles, dolls and animal figures, made of thermoplastic using the blowing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM43023A DE1130996B (en) | 1959-10-13 | 1959-10-13 | In a vertical plane, two-part hollow mold for the production of hollow bodies, such as pipe bends, bottles, dolls and animal figures, made of thermoplastic using the blowing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1130996B true DE1130996B (en) | 1962-06-07 |
Family
ID=7304540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM43023A Pending DE1130996B (en) | 1959-10-13 | 1959-10-13 | In a vertical plane, two-part hollow mold for the production of hollow bodies, such as pipe bends, bottles, dolls and animal figures, made of thermoplastic using the blowing method |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1130996B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3319291A (en) * | 1964-12-16 | 1967-05-16 | Owens Illinois Inc | Apparatus for blow molding hollow plastic containers with offset finish |
| US3408692A (en) * | 1965-05-21 | 1968-11-05 | Owens Illinois Inc | Apparatus for producing offset finish on containers |
| US3470283A (en) * | 1964-12-16 | 1969-09-30 | Owens Illinois Inc | Method for making hollow plastic containers with offset finish |
| WO1989004755A1 (en) * | 1987-11-23 | 1989-06-01 | Horda Ab | Method and device for producing articles and article produced by the method and device |
| DE4236319A1 (en) * | 1992-10-28 | 1994-05-05 | Esda Kunststoffverarbeitung Gm | Blow moulding for a rubble chute segment - uses a prepared blank with an inner relief contour within a mould. |
| US5653265A (en) * | 1984-02-13 | 1997-08-05 | Excell Corporation | Hollow plastic product |
| US6119731A (en) * | 1984-02-13 | 2000-09-19 | Excell Corporation | Hollow plastic product |
| US6485666B1 (en) | 1998-03-11 | 2002-11-26 | William W. Rowley | Post extrusion profile processing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE664056C (en) * | 1937-02-19 | 1938-08-19 | Werner Dudek Dr | Method and device for producing blown hollow glass bodies |
-
1959
- 1959-10-13 DE DEM43023A patent/DE1130996B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE664056C (en) * | 1937-02-19 | 1938-08-19 | Werner Dudek Dr | Method and device for producing blown hollow glass bodies |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3319291A (en) * | 1964-12-16 | 1967-05-16 | Owens Illinois Inc | Apparatus for blow molding hollow plastic containers with offset finish |
| US3470283A (en) * | 1964-12-16 | 1969-09-30 | Owens Illinois Inc | Method for making hollow plastic containers with offset finish |
| US3408692A (en) * | 1965-05-21 | 1968-11-05 | Owens Illinois Inc | Apparatus for producing offset finish on containers |
| US5653265A (en) * | 1984-02-13 | 1997-08-05 | Excell Corporation | Hollow plastic product |
| US6119731A (en) * | 1984-02-13 | 2000-09-19 | Excell Corporation | Hollow plastic product |
| US6319454B1 (en) | 1984-02-13 | 2001-11-20 | Excell Corporation | Method and apparatus for manufacturing a hollow plastic product |
| WO1989004755A1 (en) * | 1987-11-23 | 1989-06-01 | Horda Ab | Method and device for producing articles and article produced by the method and device |
| DE4236319A1 (en) * | 1992-10-28 | 1994-05-05 | Esda Kunststoffverarbeitung Gm | Blow moulding for a rubble chute segment - uses a prepared blank with an inner relief contour within a mould. |
| US6485666B1 (en) | 1998-03-11 | 2002-11-26 | William W. Rowley | Post extrusion profile processing |
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