FR2437288A2 - Annular extrusion die with radially oscillating toothed baffles - for mfr. of perforated plastic sheet or netting - Google Patents

Annular extrusion die with radially oscillating toothed baffles - for mfr. of perforated plastic sheet or netting

Info

Publication number
FR2437288A2
FR2437288A2 FR7828322A FR7828322A FR2437288A2 FR 2437288 A2 FR2437288 A2 FR 2437288A2 FR 7828322 A FR7828322 A FR 7828322A FR 7828322 A FR7828322 A FR 7828322A FR 2437288 A2 FR2437288 A2 FR 2437288A2
Authority
FR
France
Prior art keywords
netting
mfr
plastic sheet
extrusion die
perforated plastic
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.)
Granted
Application number
FR7828322A
Other languages
French (fr)
Other versions
FR2437288B2 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEMPLANOR
Original Assignee
SEMPLANOR
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SEMPLANOR filed Critical SEMPLANOR
Priority to FR7828322A priority Critical patent/FR2437288A2/en
Priority to LU80409A priority patent/LU80409A1/en
Priority to NL7810981A priority patent/NL7810981A/en
Publication of FR2437288A2 publication Critical patent/FR2437288A2/en
Application granted granted Critical
Publication of FR2437288B2 publication Critical patent/FR2437288B2/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
    • B26F1/0038—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes from the inside
    • 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
    • B29C48/03—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
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C48/301—Extrusion nozzles or dies having reciprocating, oscillating or rotating parts
    • 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
    • B29L2028/00—Nets or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Dies for extrusion of perforated tubular plastic film incorporate a set of segmental plates with arcuate teeth which can be shifted radially to partially interrupt the extrudate and withdrawn periodically to allow full bore flow past the end of the segment. Used for producing sheet or netting with openings in circumferential or stepped helical arrays.
FR7828322A 1977-11-03 1978-09-27 Annular extrusion die with radially oscillating toothed baffles - for mfr. of perforated plastic sheet or netting Granted FR2437288A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7828322A FR2437288A2 (en) 1978-09-27 1978-09-27 Annular extrusion die with radially oscillating toothed baffles - for mfr. of perforated plastic sheet or netting
LU80409A LU80409A1 (en) 1977-11-03 1978-10-25 EXTRUSION HEAD FOR THE MANUFACTURE OF A PERFORATED SHEATH
NL7810981A NL7810981A (en) 1977-11-03 1978-11-03 Annular extrusion die with radially oscillating toothed baffles - for mfr. of perforated plastic sheet or netting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7828322A FR2437288A2 (en) 1978-09-27 1978-09-27 Annular extrusion die with radially oscillating toothed baffles - for mfr. of perforated plastic sheet or netting

Publications (2)

Publication Number Publication Date
FR2437288A2 true FR2437288A2 (en) 1980-04-25
FR2437288B2 FR2437288B2 (en) 1981-08-14

Family

ID=9213310

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828322A Granted FR2437288A2 (en) 1977-11-03 1978-09-27 Annular extrusion die with radially oscillating toothed baffles - for mfr. of perforated plastic sheet or netting

Country Status (1)

Country Link
FR (1) FR2437288A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504850A1 (en) * 1981-05-04 1982-11-05 Sign Extruder die mechanism for producing tubular mesh - involving twinned sets of blades to alternately interrupt the discharge
FR2552013A1 (en) * 1983-09-15 1985-03-22 Nobel Plastiques Process for manufacturing a long open-worked product made from thermoplastic material, equipment for its implementation and product resulting therefrom
US20180311859A1 (en) * 2017-04-27 2018-11-01 Safran Aircraft Engines Device for perforating an acoustic annular panel for a turbine engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504850A1 (en) * 1981-05-04 1982-11-05 Sign Extruder die mechanism for producing tubular mesh - involving twinned sets of blades to alternately interrupt the discharge
FR2552013A1 (en) * 1983-09-15 1985-03-22 Nobel Plastiques Process for manufacturing a long open-worked product made from thermoplastic material, equipment for its implementation and product resulting therefrom
US20180311859A1 (en) * 2017-04-27 2018-11-01 Safran Aircraft Engines Device for perforating an acoustic annular panel for a turbine engine
CN108789634A (en) * 2017-04-27 2018-11-13 赛峰飞机发动机公司 For the equipment to the acoustics annular slab for turbogenerator into eleven punch 11
US11000964B2 (en) * 2017-04-27 2021-05-11 Safran Aircraft Engines Device for perforating an acoustic annular panel for a turbine engine
CN108789634B (en) * 2017-04-27 2022-05-10 赛峰飞机发动机公司 Apparatus for perforating an acoustic annular plate for a turbine engine

Also Published As

Publication number Publication date
FR2437288B2 (en) 1981-08-14

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