GB1154561A - Improvements in or relating to the Manufacture of Plastic Articles. - Google Patents

Improvements in or relating to the Manufacture of Plastic Articles.

Info

Publication number
GB1154561A
GB1154561A GB00256/65A GB1025665A GB1154561A GB 1154561 A GB1154561 A GB 1154561A GB 00256/65 A GB00256/65 A GB 00256/65A GB 1025665 A GB1025665 A GB 1025665A GB 1154561 A GB1154561 A GB 1154561A
Authority
GB
United Kingdom
Prior art keywords
chamber
mixing
reservoir
pump
constituents
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
GB00256/65A
Inventor
Wallace Gerald Hawkins
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.)
Clarks Ltd
Original Assignee
Clarks 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 Clarks Ltd filed Critical Clarks Ltd
Priority to GB00256/65A priority Critical patent/GB1154561A/en
Publication of GB1154561A publication Critical patent/GB1154561A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7471—Mixers in which the mixing takes place at the inlet of a mould, e.g. mixing chambers situated in the mould opening
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0077—Moulds or cores; Details thereof or accessories therefor characterised by the configuration of the mould filling gate ; accessories for connecting the mould filling gate with the filling spout
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • 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
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1,154,561. Mixing apparatus. CLARKS Ltd. 9 June, 1966 [10 March, 1965], No. 10256/65. Heading B1C [Also in Division B5] A mould cavity 1c is connected by a duct 35 with a mixing chamber 46 into which a mixing head projects, the mixing head having a plurality of conduits 49, 50 through which the constituents of a moulding mixture can be injected into the chamber 46 and a rotary mixing element 45 within the chamber. In the embodiment shown in Fig. 9 the mixing head has a frusto-conical stationary portion 43 adapted to form a seal with a correspondingly shaped extension 44 of the chamber 46. The mixing element 45 may comprise projecting arms carried at the end of a high speed screw 40. Fluid pressure-operated valves 51, 52 control flow of the constituents of the moulding material, and the duct 35 can be closed by a fluid pressure-operated valve 47. Fig. 8 (not shown) shows another embodiment in which three constituents are supplied to a mixing chamber (34) opening directly to a side of the mould. The rotary mixing element (27) may comprise a boss having radially projecting pegs or spiral flutings. The apparatus may be used for moulding shoe soles and heels from polyurethane. A reservoir and a metering pump may be provided for each constituent, the pumps being operated simultaneously. In Fig: 2 a pumping chamber 20 is connected to a reservoir 18 through a one-way valve 22, the pipe 5 being connected to the mixing device. A fluid line 10, leads to a pump (9) Fig. 1 (not shown). Downward movement of a piston in pump (9) flexes an impermeable membrane 21 to expel material from the chamber 20 to the mixing device. The reservoir 18 and chamber 20 constitute a pump 8 forming part of a threecomponent system (Fig. 1). Pumps (6), (7) and (9) are operated by a motor (15) through a pivoted bar (13). Figs: 3 to 7 (not shown) show two-component systems. In Figs. 3, 4 pistons (101), (102) of differing cross-section act through a cross-bar (103) movable by a piston (105) of adjustable stroke to expel material to the mixing device. In a modification (Fig. 5, not shown) the pistons are connected in slots of a pivoted bar (13). In a further modification (Figs. 6, 7, not shown) pumps (111), (111A) are connected through a variable ratio gear box (114),to meter the required amount of material from each reservoir. The material in the reservoirs may be kept under a pressure of 3-5 atmospheres in an atmosphere of dry air or nitrogen.
GB00256/65A 1965-03-10 1965-03-10 Improvements in or relating to the Manufacture of Plastic Articles. Expired GB1154561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB00256/65A GB1154561A (en) 1965-03-10 1965-03-10 Improvements in or relating to the Manufacture of Plastic Articles.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB00256/65A GB1154561A (en) 1965-03-10 1965-03-10 Improvements in or relating to the Manufacture of Plastic Articles.

Publications (1)

Publication Number Publication Date
GB1154561A true GB1154561A (en) 1969-06-11

Family

ID=9964512

Family Applications (1)

Application Number Title Priority Date Filing Date
GB00256/65A Expired GB1154561A (en) 1965-03-10 1965-03-10 Improvements in or relating to the Manufacture of Plastic Articles.

Country Status (1)

Country Link
GB (1) GB1154561A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794451A (en) * 1970-06-26 1974-02-26 Bayer Ag Introduction of reactants into moulds
US3847526A (en) * 1971-03-16 1974-11-12 Anker Werk Nuernberg Gmbh Material mixing moulding apparatus for use with a mould to shape a plastics material
FR2301292A1 (en) * 1975-02-22 1976-09-17 Bayer Ag DEVICE FOR DOSING AND MIXING FLUID CONSTITUENTS COMING INTO REACTION OF A MOLDING MATERIAL
EP0451921A1 (en) * 1990-04-13 1991-10-16 Dsm Rim Nylon V.O.F Mixing head for mixing of liquid chemically interreacting plastic components
EP1207030A1 (en) * 2000-11-20 2002-05-22 AEF Atelier d'Etudes de Formes Vacuum molding process and corresponding molding installation
CN104330292A (en) * 2014-10-22 2015-02-04 山东大学 Device for automatically mixing similar materials and accurately pressing and molding test piece, and using method of device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794451A (en) * 1970-06-26 1974-02-26 Bayer Ag Introduction of reactants into moulds
US3847526A (en) * 1971-03-16 1974-11-12 Anker Werk Nuernberg Gmbh Material mixing moulding apparatus for use with a mould to shape a plastics material
FR2301292A1 (en) * 1975-02-22 1976-09-17 Bayer Ag DEVICE FOR DOSING AND MIXING FLUID CONSTITUENTS COMING INTO REACTION OF A MOLDING MATERIAL
EP0451921A1 (en) * 1990-04-13 1991-10-16 Dsm Rim Nylon V.O.F Mixing head for mixing of liquid chemically interreacting plastic components
EP1207030A1 (en) * 2000-11-20 2002-05-22 AEF Atelier d'Etudes de Formes Vacuum molding process and corresponding molding installation
FR2816872A1 (en) * 2000-11-20 2002-05-24 Atelier D Etudes De Formes VACUUM MOLDING PROCESS AND CORRESPONDING MOLDING INSTALLATION
CN104330292A (en) * 2014-10-22 2015-02-04 山东大学 Device for automatically mixing similar materials and accurately pressing and molding test piece, and using method of device

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