JPS5772837A - Extruder - Google Patents

Extruder

Info

Publication number
JPS5772837A
JPS5772837A JP55149755A JP14975580A JPS5772837A JP S5772837 A JPS5772837 A JP S5772837A JP 55149755 A JP55149755 A JP 55149755A JP 14975580 A JP14975580 A JP 14975580A JP S5772837 A JPS5772837 A JP S5772837A
Authority
JP
Japan
Prior art keywords
hopper
nozzle
cylinder barrel
supply
connecting pipe
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.)
Pending
Application number
JP55149755A
Other languages
Japanese (ja)
Inventor
Mitsuharu Okido
Hidenori Idate
Hiroaki Usui
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP55149755A priority Critical patent/JPS5772837A/en
Publication of JPS5772837A publication Critical patent/JPS5772837A/en
Pending 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
    • 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
    • B29C48/72—Feedback means, i.e. part of the molten material being fed back into upstream stages of the extruder
    • B29C48/725—Feedback means, i.e. part of the molten material being fed back into upstream stages of the extruder for plasticising or homogenising devices
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2888—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules in band or in strip form, e.g. rubber strips

Abstract

PURPOSE:To prevent a bridging phenomenon from occurring at a hopper and to supply a material smoothly by a method wherein a portion of a resin softened in a cylinder barrel is molded into a spiral shape and the spiral shaped material is fed back into a hopper. CONSTITUTION:In the extruder, a nozzle 6 for molding a portion of the molten resin into a spiral shaped is provided at the cylinder barrel 1 part between a breaker plate 5 and the tip part 4a of a screw vane, and a connecting pipe 9 made of a metallic net for connecting the nozzle 6 and the hopper 2 is provided. The spirally shaped molding material 12a extruded from the nozzle 6 is passed through the connecting pipe 9, a fitting hole 2a of the hopper 2 and a lower part 2b of the hopper 2, then it is drawn into the cylinder barrel 1 while being wounded around a screw 4. Accordingly, the molding material 12 contained in the hopper 2 is forcibly fed into the barrel 1, so that the arching phenomenon which will hinder the supply of a contact amount of the material 12 can be prevented.
JP55149755A 1980-10-25 1980-10-25 Extruder Pending JPS5772837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55149755A JPS5772837A (en) 1980-10-25 1980-10-25 Extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55149755A JPS5772837A (en) 1980-10-25 1980-10-25 Extruder

Publications (1)

Publication Number Publication Date
JPS5772837A true JPS5772837A (en) 1982-05-07

Family

ID=15482035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55149755A Pending JPS5772837A (en) 1980-10-25 1980-10-25 Extruder

Country Status (1)

Country Link
JP (1) JPS5772837A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5554325A (en) * 1993-05-10 1996-09-10 Saint Gobain Vitrage International Process and device for extruding a calibrated profile of a thermoplastic polymer onto articles
CN108973072A (en) * 2018-08-10 2018-12-11 芜湖市旭辉电工新材料有限责任公司 A kind of cable plastic extrusion raw material uniformly mixes extrusion equipment
US20190184620A1 (en) * 2017-12-18 2019-06-20 The Goodyear Tire & Rubber Company Extruder system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5554325A (en) * 1993-05-10 1996-09-10 Saint Gobain Vitrage International Process and device for extruding a calibrated profile of a thermoplastic polymer onto articles
US20190184620A1 (en) * 2017-12-18 2019-06-20 The Goodyear Tire & Rubber Company Extruder system
US11780144B2 (en) 2017-12-18 2023-10-10 The Goodyear Tire & Rubber Company Extruder system
CN108973072A (en) * 2018-08-10 2018-12-11 芜湖市旭辉电工新材料有限责任公司 A kind of cable plastic extrusion raw material uniformly mixes extrusion equipment

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