ES354206A1 - Improvements in or relating to the continuous manufacture of extrusions - Google Patents
Improvements in or relating to the continuous manufacture of extrusionsInfo
- Publication number
- ES354206A1 ES354206A1 ES354206A ES354206A ES354206A1 ES 354206 A1 ES354206 A1 ES 354206A1 ES 354206 A ES354206 A ES 354206A ES 354206 A ES354206 A ES 354206A ES 354206 A1 ES354206 A1 ES 354206A1
- Authority
- ES
- Spain
- Prior art keywords
- baffle
- diaphragm
- conduit
- pressure
- extrusion
- 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.)
- Expired
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
- 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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92019—Pressure
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92466—Auxiliary unit, e.g. for external melt filtering, re-combining or transfer between units
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92961—Auxiliary unit, e.g. for external melt filtering, re-combining or transfer between units
-
- 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
Abstract
An extrusion moulding machine comprises a pressure-responsive device 27 adjacent the extrusion orifice and a valve 4 having a baffle 8 situated in the flow path of plasticized material and drivingly coupled to a diaphragm 20, forces on the diaphragm due to the baffle being counteracted by compressed gas delivered via conduit 23, an electrically controlled pressurecontrol system coupled with device 27 regulating the supply of compressed gas so as to tend to keep the sensed pressure constant. Baffle 8 is coupled to diaphragm 20 via a silicone grease plug which coacts with a piston 18 in a cylinder 17. In operation, device 27 converts pressure values into electrical signals which are conveyed to electromagnetic switches 30, Fig. 2, the sensing of a sufficiently high pressure creating an electric signal sufficient to operate the switches and to change the feed of compressed gas to conduit 23 from path a to path b. Valves 35, 36 are set at different values, valve 36 allowing a lower pressure to exist above diaphragm 20 which results in a rise of piston 18 and such movement is transmitted to baffle 8 by the silicone grease plug in conduit 10 to thereby reduce the flow of material to the extrusion orifice. Additionally a valve oscillator 24 is provided which maintains a relative high frequency, e.g. 30-60 c.p.m., but low amplitude gas pressure change, e.g. 0À1-0À2 atmos. above diaphragm 20. Such oscillation is transmitted to baffle 8 whose responsivity is thereby increased. Downstream of the die orifice is affixed, via a heat insulating ring 13, a cooling and sizing device 14, 15, Fig. 1. A grease gun 25, 26 communicates with conduit 10. The extrusion of one or more bars and sheets is mentioned with, in the case of a sheet, the possible use of a plurality of baffles 8. Polyamide resin is mentioned as an example of extrudable material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL676707150A NL150372B (en) | 1967-05-23 | 1967-05-23 | DEVICE FOR THE CONTINUOUS MANUFACTURE OF PLASTIC PROFILES. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES354206A1 true ES354206A1 (en) | 1969-11-01 |
Family
ID=19800195
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES354206A Expired ES354206A1 (en) | 1967-05-23 | 1968-05-22 | Improvements in or relating to the continuous manufacture of extrusions |
ES354216A Expired ES354216A1 (en) | 1967-05-23 | 1968-05-22 | Improvements in or relating to the continuous manufacture of extrusions |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES354216A Expired ES354216A1 (en) | 1967-05-23 | 1968-05-22 | Improvements in or relating to the continuous manufacture of extrusions |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS4835928B1 (en) |
AT (1) | AT306348B (en) |
BE (1) | BE715531A (en) |
DE (1) | DE1778683C3 (en) |
DK (1) | DK135707B (en) |
ES (2) | ES354206A1 (en) |
FR (1) | FR1569260A (en) |
GB (1) | GB1235694A (en) |
NL (1) | NL150372B (en) |
SE (1) | SE337906B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3502019C2 (en) * | 1985-01-23 | 1994-04-14 | Hoechst Ag | Method and device for stabilizing the pressure of a thermoplastic melt |
JPH03275315A (en) * | 1990-03-27 | 1991-12-06 | Japan Steel Works Ltd:The | Extrusion molding method and device for multi-layer parison |
AUPP027397A0 (en) | 1997-11-07 | 1997-12-04 | Documotion Research, Inc. | Tamper-evident form for securely carrying confidential information |
WO2020054777A1 (en) * | 2018-09-14 | 2020-03-19 | Agc株式会社 | Method for producing pellets, pellets and ion exchange film |
-
1967
- 1967-05-23 NL NL676707150A patent/NL150372B/en not_active IP Right Cessation
-
1968
- 1968-05-21 AT AT487068A patent/AT306348B/en not_active IP Right Cessation
- 1968-05-22 BE BE715531D patent/BE715531A/xx unknown
- 1968-05-22 ES ES354206A patent/ES354206A1/en not_active Expired
- 1968-05-22 DK DK236568AA patent/DK135707B/en not_active IP Right Cessation
- 1968-05-22 ES ES354216A patent/ES354216A1/en not_active Expired
- 1968-05-22 SE SE06946/68A patent/SE337906B/xx unknown
- 1968-05-22 DE DE1778683A patent/DE1778683C3/en not_active Expired
- 1968-05-22 JP JP43034097A patent/JPS4835928B1/ja active Pending
- 1968-05-23 GB GB24713/68A patent/GB1235694A/en not_active Expired
- 1968-06-14 FR FR1569260D patent/FR1569260A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE337906B (en) | 1971-08-23 |
DE1778683A1 (en) | 1971-08-12 |
DE1778683B2 (en) | 1978-01-12 |
GB1235694A (en) | 1971-06-16 |
DK135707C (en) | 1977-11-14 |
JPS4835928B1 (en) | 1973-10-31 |
NL6707150A (en) | 1968-11-25 |
FR1569260A (en) | 1969-05-30 |
NL150372B (en) | 1976-08-16 |
AT306348B (en) | 1973-04-10 |
BE715531A (en) | 1968-10-16 |
ES354216A1 (en) | 1969-11-01 |
DE1778683C3 (en) | 1978-09-28 |
DK135707B (en) | 1977-06-13 |
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