CH391285A - Plastic extrusion machine - Google Patents
Plastic extrusion machineInfo
- Publication number
- CH391285A CH391285A CH906263A CH906263A CH391285A CH 391285 A CH391285 A CH 391285A CH 906263 A CH906263 A CH 906263A CH 906263 A CH906263 A CH 906263A CH 391285 A CH391285 A CH 391285A
- Authority
- CH
- Switzerland
- Prior art keywords
- die
- machine
- extrusion
- machine according
- sub
- Prior art date
Links
- 238000001125 extrusion Methods 0.000 title claims description 13
- 230000000295 complement effect Effects 0.000 claims 1
- 230000007547 defect 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
EMI0001.0001
La fig. 1 montre l'extrémité d'évacuation de la machine d'extrusion munie d'une filière d'extrusion annulaire.
La fig. 2 est une coupe d'une variante.
La fig. 3 est une coupe d'une autre variante. Dans la fig. 1, on a représenté @en 1 un barillet ou cylindre d'une machine d'extrusion convention- nelle du type à vis.
Une tige tubulaire 2 est montée sus le cylindre et par-dessus cette tige est ajusté un manchon 3 venu de fabrication avec un support 4 pour une filière d'extrusion annulaire 5. Le support 4 est porté par un palier de butée 6 du !type à billes ou rouleaux fixé sur la base de la machine par un support 7.
Une couronne dentée 8 est fixée coexialement à la filière et engrène avec une vis ans fin 9 agencée de façon à être entraînée par un moteur électrique.
Pendant le fonctionnement de la machine, la fi lière et le support sont entraînés lentement en rota tion (par exemple à deux tours par minute) par la vis sans fin 9. Le manchon 3 tourne par rapport à la tige 2 et la :poussée résultant -de la pression d'ex trusion est facilement absorbée par le palier 6 et son support.
Ainsi, la filière tourne lentement par rapport à la matière extrudée 10, des défauts sont distribués uniformément sur .le rouleau dans lequel la matière est accumulée éventuellement et .on obtient ainsi un rouleau très net.
Dans la forme d'exécution -de la fig. 2, la filière elle-même est formée pour s'adapter au manchon 3 de façon coulissante et rotative et la couronne dentée 8 porte également le palier de butée 6 qui réagit contre un châssis 7'.
Dans la variante de la fig. 3, le manchon, tubu laire 2' est coudé à 900 de sorte que l'extrusion est obtenue perpendiculairement à l'axe de la machine, autrement la disposition est semblable à celle de la fig. 2.
On notera que bien que la rotation de la ma- chine complète .avec la :filière n'est virtuellement pos sible qu'avec une extrusion verticale vers le haut, la filière rotative décrite s'adapte facilement pour l'extrusion dans n'importe quelle direction.
EMI0001.0001
Fig. 1 shows the discharge end of the extrusion machine provided with an annular extrusion die.
Fig. 2 is a section of a variant.
Fig. 3 is a section of another variant. In fig. 1, 1 shows a barrel or cylinder of a conventional screw type extrusion machine.
A tubular rod 2 is mounted on the cylinder and over this rod is fitted a sleeve 3 manufactured with a support 4 for an annular extrusion die 5. The support 4 is carried by a thrust bearing 6 of the type! ball or roller fixed to the base of the machine by a support 7.
A toothed ring 8 is fixed coexially to the die and meshes with an end screw 9 arranged so as to be driven by an electric motor.
During operation of the machine, the die and the support are slowly rotated (for example at two revolutions per minute) by the worm 9. The sleeve 3 rotates with respect to the rod 2 and the resulting thrust -the extrusion pressure is easily absorbed by the bearing 6 and its support.
Thus, the die rotates slowly with respect to the extruded material 10, defects are distributed evenly on the roll in which the material is eventually accumulated and thus a very clean roll is obtained.
In the embodiment of FIG. 2, the die itself is formed to fit the sleeve 3 in a sliding and rotatable manner and the ring gear 8 also carries the thrust bearing 6 which reacts against a frame 7 '.
In the variant of FIG. 3, the sleeve, tubular 2 'is bent at 900 so that the extrusion is obtained perpendicular to the axis of the machine, otherwise the arrangement is similar to that of FIG. 2.
Note that although the rotation of the complete machine with the die is virtually possible only with vertical upward extrusion, the described rotary die easily adapts for extrusion in any. which way.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2785862 | 1962-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH391285A true CH391285A (en) | 1965-04-30 |
Family
ID=10266462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH906263A CH391285A (en) | 1962-07-19 | 1963-07-19 | Plastic extrusion machine |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE635187A (en) |
| CH (1) | CH391285A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3393427A (en) * | 1965-12-27 | 1968-07-23 | Phillips Petroleum Co | Extrusion die |
-
0
- BE BE635187D patent/BE635187A/xx unknown
-
1963
- 1963-07-19 CH CH906263A patent/CH391285A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3393427A (en) * | 1965-12-27 | 1968-07-23 | Phillips Petroleum Co | Extrusion die |
Also Published As
| Publication number | Publication date |
|---|---|
| BE635187A (en) | 1900-01-01 |
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