GB1139081A - Process for manufacturing brushes from a bundle of locks of threads, device for employing this process and brushes resulting therefrom - Google Patents

Process for manufacturing brushes from a bundle of locks of threads, device for employing this process and brushes resulting therefrom

Info

Publication number
GB1139081A
GB1139081A GB996566A GB996566A GB1139081A GB 1139081 A GB1139081 A GB 1139081A GB 996566 A GB996566 A GB 996566A GB 996566 A GB996566 A GB 996566A GB 1139081 A GB1139081 A GB 1139081A
Authority
GB
United Kingdom
Prior art keywords
strands
block
filaments
mould
members
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
GB996566A
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.)
Individual
Original Assignee
Individual
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 FR8190A external-priority patent/FR1453829A/en
Priority claimed from FR30389A external-priority patent/FR1462272A/en
Priority claimed from FR35620A external-priority patent/FR1460850A/en
Application filed by Individual filed Critical Individual
Publication of GB1139081A publication Critical patent/GB1139081A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/005—Preparing, i.e. Manufacturing brush bodies by moulding or casting a body around bristles or tufts of bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/20—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed or joined in rubber bodies, e.g. in soft rubber
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B29C45/14385—Coating a portion of a bundle of inserts, e.g. making brushes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)

Abstract

1,139,081. Making brushes. R. PIOTROWSKI. 7 March, 1966 [5 March, 1965; 3 Sept., 1965; 20 Oct., 1965], No. 9965/66. Heading A4K. In a process for injection moulding brush stocks on to the ends of continuous strands of brush filaments, the newly cut ends of the strands are advanced by a reciprocating mechanism. The strands of polyamide filaments are unwound from reels and pass through polytetrafluoroethylene tubes 13 to an apertured block 5 of the same material. The holes in block 5 arrange the filaments in compact tuft formation (Figs 12-16, not shown), in which they are intermittently fed by clamp members 6a, b, to channels in blocks 7 and 8. Members 6a, b are driven by ram 23 and, during the rearward stroke of the latter, the strands slide freely through holes in a rubber block between members 6a, b. At the end of the rearward stroke, rod 25 is rotated to turn cam 24a and compress the rubber block between members 6a, b. The holes are consequently deformed to grip the strands and these are advanced on the forward stroke to eject the finished brush from the open mould 9a, b. Rod 25 is operated to release the cam 24a before each successive return stroke. The advancing mechanism is stopped when the ends of the strands emerge into the mould. Before the mould is closed, the ends are fused by a flame. Polystyrene is then injected into the mould cavity. After cooling, the mould is opened and ram 16b operated to sever the filaments against shear block 7. The process is repeated after ejection of the finished brush. In modified procedures, shearing may take place before moulding or the shear block may be put under partial pressure to grip the strands during moulding. Instead of advancing the strands in small steps, by means of a single clamp 6a, b, two such clamps may be used (Fig. 8, not shown). Alternatively, buckling of the filaments during advancing may be prevented by spaced supporting plates between the clamp and block 7. The whole length of a tuft may thus be advanced in a single stroke by bringing plates in face to face contact (Figs. 10 and 11, not shown).
GB996566A 1965-03-05 1966-03-07 Process for manufacturing brushes from a bundle of locks of threads, device for employing this process and brushes resulting therefrom Expired GB1139081A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR8190A FR1453829A (en) 1965-03-05 1965-03-05 Method of manufacturing brushes and the like
FR30389A FR1462272A (en) 1965-09-03 1965-09-03 Method for manufacturing brushes, device for carrying out this method and resulting brush
FR35620A FR1460850A (en) 1965-10-20 1965-10-20 Method for manufacturing brushes from a bundle of strands of wires, device for implementing this method and resulting brushes

Publications (1)

Publication Number Publication Date
GB1139081A true GB1139081A (en) 1969-01-08

Family

ID=27241961

Family Applications (1)

Application Number Title Priority Date Filing Date
GB996566A Expired GB1139081A (en) 1965-03-05 1966-03-07 Process for manufacturing brushes from a bundle of locks of threads, device for employing this process and brushes resulting therefrom

Country Status (3)

Country Link
BE (1) BE677121A (en)
CH (1) CH438210A (en)
GB (1) GB1139081A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193074A2 (en) * 1985-02-21 1986-09-03 CORONET-WERKE Heinrich Schlerf GmbH Method and apparatus for manufacturing brushware

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2676572B1 (en) 2012-06-19 2018-07-04 Braun GmbH Carrier for cleaning elements and method for using such carriers in the production of toothbrush heads

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193074A2 (en) * 1985-02-21 1986-09-03 CORONET-WERKE Heinrich Schlerf GmbH Method and apparatus for manufacturing brushware
EP0193074A3 (en) * 1985-02-21 1987-11-04 Coronet-Werke Heinrich Schlerf Gmbh Method and apparatus for manufacturing brushware

Also Published As

Publication number Publication date
DE1604673A1 (en) 1972-10-26
CH438210A (en) 1967-06-30
DE1604673B2 (en) 1975-09-18
BE677121A (en) 1966-08-29

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