GB708733A - Improvements in or relating to the injection moulding of brushes - Google Patents
Improvements in or relating to the injection moulding of brushesInfo
- 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
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.
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)
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 |
-
0
- BE BE505212D patent/BE505212A/xx unknown
-
1951
- 1951-04-13 NL NL160513A patent/NL75620C/xx active
- 1951-05-19 CH CH291462D patent/CH291462A/en unknown
- 1951-06-04 FR FR1038040D patent/FR1038040A/en not_active Expired
- 1951-06-06 GB GB1345151A patent/GB708733A/en not_active Expired
Cited By (2)
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 |
---|---|
BE505212A (en) | |
FR1038040A (en) | 1953-09-24 |
CH291462A (en) | 1953-06-30 |
NL75620C (en) | 1954-07-16 |
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