FR3128395B1 - COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD - Google Patents
COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD Download PDFInfo
- Publication number
- FR3128395B1 FR3128395B1 FR2111340A FR2111340A FR3128395B1 FR 3128395 B1 FR3128395 B1 FR 3128395B1 FR 2111340 A FR2111340 A FR 2111340A FR 2111340 A FR2111340 A FR 2111340A FR 3128395 B1 FR3128395 B1 FR 3128395B1
- Authority
- FR
- France
- Prior art keywords
- extrusion head
- roller
- closing
- air gap
- plant including
- 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.)
- Active
Links
- 238000001125 extrusion Methods 0.000 title abstract 5
- 238000007789 sealing Methods 0.000 title 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
-
- 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
- B29C33/20—Opening, closing or clamping
-
- 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
- B29C48/254—Sealing means
-
- 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
- B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
-
- 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
- B29C48/35—Extrusion nozzles or dies with rollers
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/10—Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
- B29D30/16—Applying the layers; Guiding or stretching the layers during application
-
- 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
- B29C48/07—Flat, e.g. panels
-
- 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
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
- B29L2030/002—Treads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
L’invention concerne une installation (1) de coextrusion comprenant une tête d’extrusion (3) et un rouleau (5) délimitant entre eux un entrefer (6), un système de fermeture (10) comportant un mécanisme (13) à butée (14) qui est agencé pour positionner de manière reproductible la tête d’extrusion (3) par rapport au rouleau (5) afin de garantir que la hauteur de l’entrefer (H6) soit égale à une hauteur nominale (H6_set) prédéterminée, assortie d’une tolérance radiale (IT6) connue, et la tête d’extrusion (3) comprenant des joints d’étanchéité (20), formés par des cordons (21) qui délimitent axialement l’entrefer (6), qui font saillie sur la tête d’extrusion (3) de sorte à se retrouver comprimés contre le rouleau (5), d’une valeur de compression radiale qui est au moins égale à la valeur minimale d’interférence radiale (H_interf) prédéterminée. Figure 2The invention relates to a coextrusion installation (1) comprising an extrusion head (3) and a roller (5) defining between them an air gap (6), a closure system (10) comprising a stop mechanism (13). (14) which is arranged to reproducibly position the extrusion head (3) relative to the roller (5) in order to guarantee that the height of the air gap (H6) is equal to a predetermined nominal height (H6_set), matched with a known radial tolerance (IT6), and the extrusion head (3) comprising seals (20), formed by cords (21) which axially delimit the air gap (6), which project on the extrusion head (3) so as to find themselves compressed against the roller (5), with a radial compression value which is at least equal to the predetermined minimum value of radial interference (H_interf). Figure 2
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2111340A FR3128395B1 (en) | 2021-10-26 | 2021-10-26 | COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD |
PCT/FR2022/052015 WO2023073315A1 (en) | 2021-10-26 | 2022-10-25 | Coextrusion installation comprising sealing beads which are squeezed against the roller during the closure of the extrusion head |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2111340A FR3128395B1 (en) | 2021-10-26 | 2021-10-26 | COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD |
FR2111340 | 2021-10-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3128395A1 FR3128395A1 (en) | 2023-04-28 |
FR3128395B1 true FR3128395B1 (en) | 2023-09-29 |
Family
ID=79171339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR2111340A Active FR3128395B1 (en) | 2021-10-26 | 2021-10-26 | COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR3128395B1 (en) |
WO (1) | WO2023073315A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1523830A (en) * | 1966-05-23 | 1968-05-03 | Du Pont | A method and apparatus for the continuous molding of a thermoplastic resin into a continuous sheet, and articles obtained by this method |
US4539169A (en) * | 1983-07-29 | 1985-09-03 | The Goodyear Tire & Rubber Company | Apparatus and method for forming a co-extrusion from extruded strips |
US4683095A (en) | 1985-05-08 | 1987-07-28 | The Uniroyal Goodrich Tire Company | Early progressive junction extrusion process and system |
FR2700291A1 (en) * | 1993-01-08 | 1994-07-13 | Michelin & Cie | Extrusion apparatus and extrusion method for raw rubber mixtures. |
DE19826363A1 (en) * | 1998-06-12 | 1999-12-23 | Berstorff Gmbh Masch Hermann | Wide slot nozzle for the production of webs from a foamed plastic |
DE60116667T2 (en) * | 2000-11-27 | 2006-11-16 | Société de Technologie Michelin | EXTRUSION DEVICE FOR MANUFACTURING PRODUCTS FROM RUBBER MIXTURES |
FR3068281B1 (en) * | 2017-06-30 | 2021-01-22 | Michelin & Cie | PROCESS FOR EXTRUSION OF A COMPLEX PROFILE INCLUDING AN EDGE GUM AT THE BOTTOM OF THE Furrow |
-
2021
- 2021-10-26 FR FR2111340A patent/FR3128395B1/en active Active
-
2022
- 2022-10-25 WO PCT/FR2022/052015 patent/WO2023073315A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2023073315A1 (en) | 2023-05-04 |
FR3128395A1 (en) | 2023-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 2 |
|
PLSC | Publication of the preliminary search report |
Effective date: 20230428 |
|
PLFP | Fee payment |
Year of fee payment: 3 |