FR2233162A1 - Equipment for stretching plastic sheet - with clamp chain tracks which inhibit rotational wear - Google Patents

Equipment for stretching plastic sheet - with clamp chain tracks which inhibit rotational wear

Info

Publication number
FR2233162A1
FR2233162A1 FR7321480A FR7321480A FR2233162A1 FR 2233162 A1 FR2233162 A1 FR 2233162A1 FR 7321480 A FR7321480 A FR 7321480A FR 7321480 A FR7321480 A FR 7321480A FR 2233162 A1 FR2233162 A1 FR 2233162A1
Authority
FR
France
Prior art keywords
track
equipment
plastic sheet
clamp chain
chain tracks
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
FR7321480A
Other languages
French (fr)
Other versions
FR2233162B1 (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.)
BXL Plastics Ltd
Original Assignee
Bakelite Xylonite Ltd
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 Bakelite Xylonite Ltd filed Critical Bakelite Xylonite Ltd
Priority to FR7321480A priority Critical patent/FR2233162A1/en
Priority to BE145409A priority patent/BE816313A/en
Publication of FR2233162A1 publication Critical patent/FR2233162A1/en
Application granted granted Critical
Publication of FR2233162B1 publication Critical patent/FR2233162B1/fr
Granted legal-status Critical Current

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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
    • B29C55/165—Apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Equipment incorporating two series of clamps each mounted on carriages connected by travelling chains and moving along primary guide face with slave rollers riding at least two other faces inclined at 90, pref. 45 degrees to the main face and normal to each other. An ancillary track controlling lateral displacement of alternate chain links should allow the chain to travel in the fully extended mode whenever possible. Suitable for e.g. mfr. of biaxially oriented polyolefin sheet etc. Track desig n inhibits rotational chattering of the clamp carriages, hence minimises drive drag and track wear.
FR7321480A 1973-06-13 1973-06-13 Equipment for stretching plastic sheet - with clamp chain tracks which inhibit rotational wear Granted FR2233162A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7321480A FR2233162A1 (en) 1973-06-13 1973-06-13 Equipment for stretching plastic sheet - with clamp chain tracks which inhibit rotational wear
BE145409A BE816313A (en) 1973-06-13 1974-06-13 TABLECLOTH MATERIALS STRETCHING APPARATUS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7321480A FR2233162A1 (en) 1973-06-13 1973-06-13 Equipment for stretching plastic sheet - with clamp chain tracks which inhibit rotational wear

Publications (2)

Publication Number Publication Date
FR2233162A1 true FR2233162A1 (en) 1975-01-10
FR2233162B1 FR2233162B1 (en) 1976-11-12

Family

ID=9120882

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7321480A Granted FR2233162A1 (en) 1973-06-13 1973-06-13 Equipment for stretching plastic sheet - with clamp chain tracks which inhibit rotational wear

Country Status (2)

Country Link
BE (1) BE816313A (en)
FR (1) FR2233162A1 (en)

Also Published As

Publication number Publication date
FR2233162B1 (en) 1976-11-12
BE816313A (en) 1974-12-13

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