GB792252A - An extruding-machine incorporating a filter - Google Patents

An extruding-machine incorporating a filter

Info

Publication number
GB792252A
GB792252A GB33108/55A GB3310855A GB792252A GB 792252 A GB792252 A GB 792252A GB 33108/55 A GB33108/55 A GB 33108/55A GB 3310855 A GB3310855 A GB 3310855A GB 792252 A GB792252 A GB 792252A
Authority
GB
United Kingdom
Prior art keywords
apertures
filter
chamber
secured
row
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
Application number
GB33108/55A
Inventor
Harold Corbett
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.)
REED PRENTICE CORP
Original Assignee
REED PRENTICE CORP
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 to US296917A priority Critical patent/US2763374A/en
Application filed by REED PRENTICE CORP filed Critical REED PRENTICE CORP
Priority to GB33108/55A priority patent/GB792252A/en
Priority to DER17845A priority patent/DE1097660B/en
Publication of GB792252A publication Critical patent/GB792252A/en
Expired 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/20—Injection nozzles
    • B29C45/24—Cleaning equipment
    • 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
    • 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
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
    • B29C48/6914—Arrangements for replacing filters, e.g. with two parallel filters for alternate use the filters being fitted on a rotatable or pivotable disc or on the circumference of a rotatable or pivotable cylinder

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

792,252. Filters. REED-PRENTICE CORPORATION. Nov. 18, 1955, No. 33108/55. Class 46. [Also in Group V] A filter 30, Fig. 2, is oscillatably and slidably disposed within a cylindrical chamber 20 which is secured to an extrusion barrel 10. Plastic material issues from the barrel, through an inlet 26 into chamber 20, through the filter and out through six apertures 28 in the chamber wall. The filter comprises a rigid member having a tubular part 32 and a cut-away portion 34 in which there are five rows of apertures 38, each row having six apertures. To the inside of the portion 34 is secured a flexible screen 40. When the filter is in the position shown in Fig. 3, plastic material passes through screen part 40<SP>1</SP>, through the uppermost row of apertures 38 and out through the apertures 28. When the screen part 40<SP>1</SP> is clogged, the operator turns the filter counterclockwise, by means of a handle 37, to position screen part 40<SP>11</SP> and the second row of apertures 38 opposite apertures 28 ; and so on, each row 38 being used in turn. For cleaning purposes the filter is pushed to the broken-line position shown in Fig. 1 by means of a fluidpressure cylinder 52 secured to chamber 20 by rods 56, in which position the screen is exposed and part 32 of the filter blocks the apertures 28. The device may be used for sampling the plastic material. Heaters 22 are secured to chamber 20.
GB33108/55A 1952-07-02 1955-11-18 An extruding-machine incorporating a filter Expired GB792252A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US296917A US2763374A (en) 1952-07-02 1952-07-02 Apparatus for screening plastic materials
GB33108/55A GB792252A (en) 1955-11-18 1955-11-18 An extruding-machine incorporating a filter
DER17845A DE1097660B (en) 1955-11-18 1955-11-28 Filter device for an extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33108/55A GB792252A (en) 1955-11-18 1955-11-18 An extruding-machine incorporating a filter

Publications (1)

Publication Number Publication Date
GB792252A true GB792252A (en) 1958-03-26

Family

ID=10348669

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33108/55A Expired GB792252A (en) 1952-07-02 1955-11-18 An extruding-machine incorporating a filter

Country Status (1)

Country Link
GB (1) GB792252A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256581A (en) * 1978-11-04 1981-03-17 Sandvik Conveyor Gmbh Apparatus for preparing granular material by means of a strip caster
CN103201082A (en) * 2010-10-25 2013-07-10 马格泵***股份有限公司 Device for filtering a plastic melt
CN110065214A (en) * 2019-05-28 2019-07-30 钟隆君 A kind of waste plastic film extruder using reciprocal vibrating type filter screen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256581A (en) * 1978-11-04 1981-03-17 Sandvik Conveyor Gmbh Apparatus for preparing granular material by means of a strip caster
CN103201082A (en) * 2010-10-25 2013-07-10 马格泵***股份有限公司 Device for filtering a plastic melt
CN103201082B (en) * 2010-10-25 2015-04-22 马格泵***股份有限公司 Device for filtering a plastic melt
US9295930B2 (en) 2010-10-25 2016-03-29 Maag Automatik Gmbh Device for filtering a plastic melt
CN110065214A (en) * 2019-05-28 2019-07-30 钟隆君 A kind of waste plastic film extruder using reciprocal vibrating type filter screen

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