DE1218698B - Method of making a bottomed container, e.g. B. a drum or drum liner made of thermoplastic material - Google Patents
Method of making a bottomed container, e.g. B. a drum or drum liner made of thermoplastic materialInfo
- Publication number
- DE1218698B DE1218698B DED27753A DED0027753A DE1218698B DE 1218698 B DE1218698 B DE 1218698B DE D27753 A DED27753 A DE D27753A DE D0027753 A DED0027753 A DE D0027753A DE 1218698 B DE1218698 B DE 1218698B
- Authority
- DE
- Germany
- Prior art keywords
- drum
- closed
- thermoplastic material
- making
- liner made
- 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 6
- 239000012815 thermoplastic material Substances 0.000 title claims description 5
- 239000013067 intermediate product Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000000034 method Methods 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 230000037303 wrinkles Effects 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
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
-
- 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
-
- 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
-
- 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
- B29C49/64—Heating or cooling preforms, parisons or blown 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
- 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
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
- B29C49/6463—Thermal conditioning of preforms by contact heating or cooling, e.g. mandrels or cores specially adapted for heating or cooling preforms
- B29C49/6464—Heating
-
- 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
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
- B29C2049/4602—Blowing fluids
- B29C2049/4644—Blowing fluids created by evaporating material, e.g. solid powder
-
- 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
- B29C49/4823—Moulds with incorporated heating or cooling means
- B29C2049/4825—Moulds with incorporated heating or cooling means for cooling moulds or mould parts
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/049—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using steam or damp
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
Verfahren zum Herstellen eines Behälters mit Boden, z. B. einer Trommel oder Trommelauskleidung aus thermoplastischem Kunststoff Die Erfindung betrifft ein Verfahren zum Herstellen eines Behälters mit Boden, z. B. einer Trommel oder Trommelauskleidung aus thermoplastischem Kunststoff, bei dem ein an seinem unteren Ende verschlossenes schlauchförmiges Zwischenerzeugnis in plastifiziertem Zustand in eine Hohlform eingebracht und durch Aufblasen zum fertigen Behälter geformt wird.Method of making a container with a bottom, e.g. B. a drum or drum liner made of thermoplastic material. The invention relates to a method of making a bottomed container, e.g. B. a drum or Drum liner made of thermoplastic material, with one at its lower End-closed tubular intermediate product in a plasticized state placed in a hollow mold and formed into the finished container by inflation.
Bei der Herstellung von Hohlkörpern aus thermoplastischem Kunststoff ist es bekannt, einen Schlauch aus Kunststoff zu bilden, ihn in eine längsgeteilte, gegebenenfalls mehrteilige Form einzubringen und dann nach Schließung der Form den Schlauch, beispielsweise durch Aufblasen, gegen die Innenwand der Form zu pressen, um den Hohlkörper auszubilden. Hierbei ist es üblich, den Schlauch entweder in leicht aufgeblasenem Zustand in die Form einzuführen oder erst nach dem völligen Schließen der mehrteiligen Form mit dem Aufblasen zu beginnen. In the production of hollow bodies made of thermoplastic material it is known to form a hose made of plastic, convert it into a longitudinally divided, optionally to introduce multi-part mold and then after closing the mold To press the hose against the inner wall of the mold, for example by inflating it, to form the hollow body. It is common here to either cut the hose in lightly in the inflated state or only after it is completely closed the multi-part shape to begin inflating.
Bei Ausübung dieses Verfahrens wird z. B. das Schlauchende durch die längsgeteilte Form bzw. durch das Schließen der Form am unteren Ende mit im wesentlichen gerader Naht verschlossen. Der Schlauch kann auch durch andere Vorrichtungen in gleicher Weise verschlossen werden. Die entsprechenden Verfahrens erzeugnisse sind von befriedigender Gleichmäßigkeit der Wandungen und der Gestalt, wenn sie mit in der Längsachse geteilten Formen hergestellt werden. When exercising this procedure, z. B. through the end of the hose the longitudinally divided form or by closing the form at the lower end with im essential straight seam closed. The hose can also be through other devices be closed in the same way. The corresponding process products are of satisfactory uniformity of walls and shape if they can be produced with molds divided in the longitudinal axis.
Bei größeren Behältern, insbesondere, wenn diese Behälter im Verhältnis zu ihrem großen Inhalt nur eine geringe Wandstärke, beispielsweise 0,05 bis 2 mm bei 100 1 Inhalt, haben sollen, kann das oben geschilderte Verfahren nicht mit befriedigenden Ergebnissen angewendet werden, besonders dann nicht, wenn höhere Anforderungen an die Gleichmäßigkeit und Faltenfreiheit des Überganges vom Boden zur zylindrischen Wand gestellt und nicht in Längsrichtung geteilte, einteilige, einseitig offene Formen verwendet werden sollen. For larger containers, especially when these containers are in proportion only a small wall thickness for its large content, for example 0.05 to 2 mm at 100 1 content, the above-described procedure cannot be satisfactory Results are applied, especially if more stringent requirements the evenness and freedom from wrinkles of the transition from the floor to the cylindrical Wall placed and not longitudinally divided, one-piece, open on one side Shapes to be used.
Es ist ferner bekannt, Trommelauskleidungen mit größerem Durchmesser aus Polyäthylen dadurch herzustellen, daß man von einem gespritzten Schlauch einen Abschnitt für die zylindrische Wandung des Auskleidungsbehälters abschneidet und in einem getrennten Arbeitsgang einen kreisförmigen Ausschnitt aus Polyäthylenfolie als Boden anschweißt. It is also known to have larger diameter drum liners made of polyethylene by one of an injection-molded hose Cut off section for the cylindrical wall of the liner container and a circular cut-out made of polyethylene film in a separate operation welded on as the bottom.
Es ist außerdem ein Verfahren zum Herstellen hohler Gegenstände, wie z. B. Behälter, bekannt, nach dem ein durch Wärme und Druck plastisch gemachter Kunststoff, z. B. Celluloseacetat oder ein warmhärtbarer Kunststoff, in eine geschlossene Form eingespritzt, das so hergestellte Zwischenerzeugnis sodann durch Innendruck mit einem Druckmedium aufgeweitet und die Spritzgußform dem Innendruck entsprechend erweitert wird. Bei dem neuen Verfahren wird demgegenüber keine geschlossene, keine erweiterbare und keine längsgeteilte Form angewendet. It is also a method of making hollow objects, such as B. container, known after which a plasticized by heat and pressure Plastic, e.g. B. cellulose acetate or a thermosetting plastic, in a closed shape The intermediate product thus produced is then injected by internal pressure expanded with a pressure medium and the injection mold according to the internal pressure is expanded. In contrast, with the new procedure there is no closed, none expandable and no longitudinally split form used.
Der Erflndung liegt die Aufgabe zugrunde, größere Behälter der vorbeschriebenen Art auch bei Verwendung einer einteiligen, unten geschlossenen und oben abzudeckenden Form einwandfrei herzustellen. The invention is based on the task of making larger containers of those described above Type also when using a one-piece, closed at the bottom and to be covered at the top Form flawlessly.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß bei an sich bekannter Verwendung einer einteiligen, unten geschlossenen und oben abzudeckenden Form mit einem Rauminhalt von mehr als 21 das Zwischenerzeugnis vor dem Einführen in die Form durch eine nach außen gewölbte Naht verschlossen wird. According to the invention, this object is achieved in that in per se known use of a one-piece, closed at the bottom and to be covered at the top Form with a volume greater than 21 the intermediate product before insertion is closed in the mold by an outwardly curved seam.
Durch das bodenförmig nach außen gewölbte Verschließen des unteren Schlauchendes vor dem Einführen in die Form wird erreicht, daß sich das Material überall glatt an die Innenwand der Form anlegt. By closing the lower one, which is curved outward at the bottom Tube end before insertion into the mold is achieved that the material all over smoothly on the inner wall of the form.
Hervorstehende Enden und Taschenbildung treten selbst an der Naht nicht auf. Dadurch ist es möglich, bei dem neuen Verfahren einteilige Formen zu verwenden, besonders beim Herstellen von Behältern, die über die bisher allgemein gebräuchliche Größe von etwa 21 Inhalt hinausgehen, vorteilhaft ist. Es können beispielsweise Behälter von 100 1 Inhalt ohne Schwierigkeiten hergestellt werden.Protruding ends and pocket formation occur even at the seam not on. This makes it possible to use one-piece molds in the new process use, especially when making containers that go beyond the general The usual size of about 21 contents is beneficial. For example Containers of 100 1 content can be produced without difficulty.
Für das Verfahren geeignet sind alle thermoplastischen Kunststoffe, wie Polyvinylchlorid, Polyamide und insbesondere Polyäthylen. All thermoplastics are suitable for the process, such as polyvinyl chloride, polyamides and especially polyethylene.
Die neuen Behälter mit Boden können für Verpackungs- und Aufbewahrungszwecke sowie besonders vorteilhaft als Einstellbehälter und lienauskleidungen, auch auswechselbarer Art, für übliche Behältnisse aus Holz, Metall und anderen bekannten Stoffen verwendet werden. The new bottom containers can be used for packaging and storage purposes and particularly advantageous as a storage container and line linings, also replaceable Kind, used for common containers made of wood, metal and other known substances will.
Claims (1)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL237380D NL237380A (en) | 1958-03-28 | ||
| DED27753A DE1218698B (en) | 1958-03-28 | 1958-03-28 | Method of making a bottomed container, e.g. B. a drum or drum liner made of thermoplastic material |
| CH7019159A CH372159A (en) | 1958-03-28 | 1959-02-28 | Hollow body made of thermoplastic material and process for its manufacture |
| BE576601A BE576601A (en) | 1958-03-28 | 1959-03-11 | Hollow body of thermoplastic synthetic materials and method for their manufacture. |
| SE2884/59A SE310416B (en) | 1958-03-28 | 1959-03-25 | |
| GB10641/59A GB920415A (en) | 1958-03-28 | 1959-03-26 | Hollow bodies made of thermoplastic plastics and a process for their production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED27753A DE1218698B (en) | 1958-03-28 | 1958-03-28 | Method of making a bottomed container, e.g. B. a drum or drum liner made of thermoplastic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1218698B true DE1218698B (en) | 1966-06-08 |
Family
ID=7039391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DED27753A Pending DE1218698B (en) | 1958-03-28 | 1958-03-28 | Method of making a bottomed container, e.g. B. a drum or drum liner made of thermoplastic material |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE576601A (en) |
| CH (1) | CH372159A (en) |
| DE (1) | DE1218698B (en) |
| GB (1) | GB920415A (en) |
| NL (1) | NL237380A (en) |
| SE (1) | SE310416B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1704248B1 (en) * | 1966-06-28 | 1971-11-11 | Proplasto Ag | METHOD AND DEVICE FOR MANUFACTURING HOLLOW BODIES FROM THERMOPLASTIC PLASTIC |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA957624A (en) * | 1969-12-17 | 1974-11-12 | E. I. Du Pont De Nemours And Company | Biaxially oriented article |
| DE102010049505B4 (en) * | 2010-10-21 | 2015-10-29 | Khs Corpoplast Gmbh | Process for producing containers and blow-molded containers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2331688A (en) * | 1938-05-13 | 1943-10-12 | Hartford Empire Co | Method and apparatus for making hollow articles of plastic mateterial |
| DE834013C (en) * | 1947-08-12 | 1952-03-13 | Plax Corp | Method and device for producing hollow bodies from organic, plastic plastic |
-
0
- NL NL237380D patent/NL237380A/xx unknown
-
1958
- 1958-03-28 DE DED27753A patent/DE1218698B/en active Pending
-
1959
- 1959-02-28 CH CH7019159A patent/CH372159A/en unknown
- 1959-03-11 BE BE576601A patent/BE576601A/en unknown
- 1959-03-25 SE SE2884/59A patent/SE310416B/xx unknown
- 1959-03-26 GB GB10641/59A patent/GB920415A/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2331688A (en) * | 1938-05-13 | 1943-10-12 | Hartford Empire Co | Method and apparatus for making hollow articles of plastic mateterial |
| DE834013C (en) * | 1947-08-12 | 1952-03-13 | Plax Corp | Method and device for producing hollow bodies from organic, plastic plastic |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1704248B1 (en) * | 1966-06-28 | 1971-11-11 | Proplasto Ag | METHOD AND DEVICE FOR MANUFACTURING HOLLOW BODIES FROM THERMOPLASTIC PLASTIC |
Also Published As
| Publication number | Publication date |
|---|---|
| SE310416B (en) | 1969-04-28 |
| BE576601A (en) | 1959-07-01 |
| NL237380A (en) | |
| GB920415A (en) | 1963-03-06 |
| CH372159A (en) | 1963-09-30 |
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