GB708733A - Improvements in or relating to the injection moulding of brushes - Google Patents

Improvements in or relating to the injection moulding of brushes

Info

Publication number
GB708733A
GB708733A GB1345151A GB1345151A GB708733A GB 708733 A GB708733 A GB 708733A GB 1345151 A GB1345151 A GB 1345151A GB 1345151 A GB1345151 A GB 1345151A GB 708733 A GB708733 A GB 708733A
Authority
GB
United Kingdom
Prior art keywords
bristles
mould
bundles
plate
mould part
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
GB1345151A
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 to BE505212D priority Critical patent/BE505212A/xx
Priority to DESCH5172A priority patent/DE893491C/en
Priority to NL160513A priority patent/NL75620C/xx
Priority to CH291462D priority patent/CH291462A/en
Priority to FR1038040D priority patent/FR1038040A/en
Application filed by Individual filed Critical Individual
Priority to GB1345151A priority patent/GB708733A/en
Priority to US239248A priority patent/US2630601A/en
Publication of GB708733A publication Critical patent/GB708733A/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
    • B29C45/14—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
    • 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
    • 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
    • A46B3/04—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by mouldable materials, e.g. metals, cellulose derivatives, plastics
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)

Abstract

708,733. Moulding brushes. SCHIFFER, M., and SCHIFFER, C. June 6, 1951, No. 13451/51. Class 87 (2) The bristles (made of plastic material) are formed into bundles, then the bristles of each bundle are fused together to form heads serving to anchor the bundles in the brush body, then the headed bundles are automatically introduced into the mould cavity, and finally the brush body is moulded in the mould cavity around the said heads. The drawings show injection-moulding apparatus for doing this, comprising a stationary mould half 1 and a movable mould half 2 between which is formed a mould cavity 3 fed with plastic material through bushes 4. The bristles are supplied from bobbins (not shown) and are fed in bundles B through holes 7 formed in two plates 5, 6 and' in mould part 2. Plate 6 is fixed in mould part 2. Plate 5 is movable and is controlled mechanically by the machine or electrically by a magnet, and may be moved to clamp the bundles against plate 6. In operation, starting from the Fig. 1 position in which four brush bodies have been moulded around the heads of the bundles, the mould part 2 opens to the Fig. 4 position through a distance that determines the length of the brush bristles. During this opening movement plate 5 is released from plate 6, and the mould part 2 and plates 5, 6 silde over the bristles. Then the magnet moves plate 5 to clamp the bristles fast, and the mould part 2 opens further (Fig. 5) to pull the brush bodies out of the mould part 1. Four knives 10, heated by plates 8, then move inwards to melt off the bristles embedded in. the brush bodies and to fuse together the ends of the bristles in each bundle projecting from the plates. The mould then closes to the Fig. 1 position, the bristles being pulled from the spools.
GB1345151A 1950-11-12 1951-06-06 Improvements in or relating to the injection moulding of brushes Expired GB708733A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE505212D BE505212A (en) 1951-06-06
DESCH5172A DE893491C (en) 1950-11-12 1950-11-12 Method and machine for producing brushes, in particular toothbrushes
NL160513A NL75620C (en) 1951-06-06 1951-04-13
CH291462D CH291462A (en) 1951-06-06 1951-05-19 Injection molding or pressing processes for the production of brushes, especially fine brushes such as tooth and nail brushes, etc.
FR1038040D FR1038040A (en) 1951-06-06 1951-06-04 Manufacture of brushes, particularly fine brushes, for teeth, nails, or the like
GB1345151A GB708733A (en) 1951-06-06 1951-06-06 Improvements in or relating to the injection moulding of brushes
US239248A US2630601A (en) 1951-06-06 1951-07-30 Die casting method for the manufacture of brushes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1345151A GB708733A (en) 1951-06-06 1951-06-06 Improvements in or relating to the injection moulding of brushes

Publications (1)

Publication Number Publication Date
GB708733A true GB708733A (en) 1954-05-12

Family

ID=10023222

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1345151A Expired GB708733A (en) 1950-11-12 1951-06-06 Improvements in or relating to the injection moulding of brushes

Country Status (5)

Country Link
BE (1) BE505212A (en)
CH (1) CH291462A (en)
FR (1) FR1038040A (en)
GB (1) GB708733A (en)
NL (1) NL75620C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3408112A (en) * 1965-03-05 1968-10-29 Piotrowski Rafal Process for manufacturing brushes from a bundle of locks of threads and a device for performing this process
US6523907B1 (en) * 2000-02-01 2003-02-25 Moll Industries, Inc. Apparatus and method for producing brushware by injection molding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3408112A (en) * 1965-03-05 1968-10-29 Piotrowski Rafal Process for manufacturing brushes from a bundle of locks of threads and a device for performing this process
US6523907B1 (en) * 2000-02-01 2003-02-25 Moll Industries, Inc. Apparatus and method for producing brushware by injection molding

Also Published As

Publication number Publication date
FR1038040A (en) 1953-09-24
CH291462A (en) 1953-06-30
NL75620C (en) 1954-07-16
BE505212A (en)

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