WO2011045600A3 - Clamping apparatus - Google Patents

Clamping apparatus Download PDF

Info

Publication number
WO2011045600A3
WO2011045600A3 PCT/GB2010/051723 GB2010051723W WO2011045600A3 WO 2011045600 A3 WO2011045600 A3 WO 2011045600A3 GB 2010051723 W GB2010051723 W GB 2010051723W WO 2011045600 A3 WO2011045600 A3 WO 2011045600A3
Authority
WO
WIPO (PCT)
Prior art keywords
stretching
clamping
plastic sheet
primary
clamping assembly
Prior art date
Application number
PCT/GB2010/051723
Other languages
French (fr)
Other versions
WO2011045600A2 (en
Inventor
John Meek Preston
Original Assignee
Stretchform Associates Limited
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
Priority claimed from GB0917821A external-priority patent/GB0917821D0/en
Priority claimed from GB0917820A external-priority patent/GB0917820D0/en
Application filed by Stretchform Associates Limited filed Critical Stretchform Associates Limited
Priority to EP10777081A priority Critical patent/EP2488345A2/en
Priority to EA201270554A priority patent/EA201270554A1/en
Publication of WO2011045600A2 publication Critical patent/WO2011045600A2/en
Publication of WO2011045600A3 publication Critical patent/WO2011045600A3/en

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
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/261—Handling means, e.g. transfer means, feeding means
    • B29C51/262—Clamping means for the sheets, e.g. clamping frames
    • 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
    • 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
    • B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
    • 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
    • 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
    • B29C55/20—Edge clamps
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A stretching machine (101) for stretching a variety of sizes of plastic sheet (103). A clamping assembly (105, 107) is connected to a primary clamp (111) of an orthogonal clamping assembly (105, 107), the connection being removable to allow connection to a different primary clamp (111) so as to accommodate a different size of plastic sheet (103). The number of primary clamps (111), each of which provide a discrete clamping, can also thereby be tailored for a particular stretching process. Stretching and forming apparatuses employing such clamping assemblies (105, 107), as well as a method of configuring such machines, are disclosed, each of which provide for increased flexibility.
PCT/GB2010/051723 2009-10-12 2010-10-12 Clamping apparatus WO2011045600A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10777081A EP2488345A2 (en) 2009-10-12 2010-10-12 Clamping apparatus
EA201270554A EA201270554A1 (en) 2009-10-12 2010-10-12 CLAMPING DEVICE

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0917820.3 2009-10-12
GB0917821A GB0917821D0 (en) 2009-10-12 2009-10-12 Stretching and forming machine
GB0917820A GB0917820D0 (en) 2009-10-12 2009-10-12 Clamping apparatus
GB0917821.1 2009-10-12

Publications (2)

Publication Number Publication Date
WO2011045600A2 WO2011045600A2 (en) 2011-04-21
WO2011045600A3 true WO2011045600A3 (en) 2012-05-31

Family

ID=43304432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2010/051723 WO2011045600A2 (en) 2009-10-12 2010-10-12 Clamping apparatus

Country Status (4)

Country Link
EP (1) EP2488345A2 (en)
EA (1) EA201270554A1 (en)
GB (1) GB2474367B (en)
WO (1) WO2011045600A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579718A (en) * 1968-10-17 1971-05-25 Sierracin Corp Apparatus for stretching sheet material
US4097035A (en) * 1977-05-31 1978-06-27 Shuman Jack N Clamping frame for plastic forming apparatus
JPH07314548A (en) * 1994-05-20 1995-12-05 Sintokogio Ltd Resin sheet clamp
JPH1120015A (en) * 1997-06-27 1999-01-26 Sumitomo Heavy Ind Ltd Sheet clamp device in sheet forming device
JPH11129324A (en) * 1997-10-24 1999-05-18 Sumitomo Heavy Ind Ltd Sheet clamping device for sheet forming machine
EP1140470B1 (en) * 1998-12-31 2003-07-23 Preston Associates (Europe) LDA Plastic stretching method and apparatus for use in vacuum forming techniques

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579718A (en) * 1968-10-17 1971-05-25 Sierracin Corp Apparatus for stretching sheet material
US4097035A (en) * 1977-05-31 1978-06-27 Shuman Jack N Clamping frame for plastic forming apparatus
JPH07314548A (en) * 1994-05-20 1995-12-05 Sintokogio Ltd Resin sheet clamp
JPH1120015A (en) * 1997-06-27 1999-01-26 Sumitomo Heavy Ind Ltd Sheet clamp device in sheet forming device
JPH11129324A (en) * 1997-10-24 1999-05-18 Sumitomo Heavy Ind Ltd Sheet clamping device for sheet forming machine
EP1140470B1 (en) * 1998-12-31 2003-07-23 Preston Associates (Europe) LDA Plastic stretching method and apparatus for use in vacuum forming techniques

Also Published As

Publication number Publication date
GB2474367B (en) 2012-05-23
EP2488345A2 (en) 2012-08-22
GB201017194D0 (en) 2010-11-24
EA201270554A1 (en) 2012-11-30
GB2474367A (en) 2011-04-13
WO2011045600A2 (en) 2011-04-21

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