EP0447738A2 - Apparatus for making rotary-brush bristle assemblies - Google Patents
Apparatus for making rotary-brush bristle assemblies Download PDFInfo
- Publication number
- EP0447738A2 EP0447738A2 EP90830126A EP90830126A EP0447738A2 EP 0447738 A2 EP0447738 A2 EP 0447738A2 EP 90830126 A EP90830126 A EP 90830126A EP 90830126 A EP90830126 A EP 90830126A EP 0447738 A2 EP0447738 A2 EP 0447738A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- bristle
- yarns
- assembly
- assemblies
- 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.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/08—Preparing uniform tufts of bristles
Definitions
- the present invention relates to an apparatus for making rotary-brush bristle assemblies; according to another aspect thereof, the invention relates to a method for making the mentioned rotary-brush bristle assemblies.
- rotary brushes including bristles formed by a given preset number of bristle yarns is mainly due to the fact that the bristles must be evenly distributed on the brush surface in order to prevent said brush from vibrating as it is turned and in order to provide a perfectly balanced rotary brush.
- the aim of the present invention is to overcome the above mentioned drawbacks, by providing an apparatus which is adapted to automatically accurately count the bristle yarns.
- a main object of the present invention is to provide such an apparatus which can be quickly and easily fitted downstream of the bristle yarn extruding assembly, without the need of performing substantial modifications to this extruding assembly.
- Another object of the present invention is to provide such an apparatus which is very reliably and safe in operation and can be easily constructed starting from easily available elements and materials and which, moreover, is very competitive from a mere economic standpoint.
- a bristle yarn counting apparatus for accurately counting the bristle yarn to be used for making rotary-brush bristle assemblies, characterized in that said apparatus comprises, downstream of a bristle yarn extruding assembly, a bristle yarn drawing and guiding assembly adapted to supply with a set number of bristle yarns a bristle yarn bundling assembly, adapted to associate the bristle yarns with one another by means of an outer wrapped thread so as to form a bristle yarn bundle holding a set number of bristle yarns, downstream of said bristle yarn bundling assembly there being moreover provided a reeling frame adapted to form a bristle yarn hank.
- the apparatus for making rotary-brush bristle assemblies comprises, downstream of an extruding assembly, of a substantially known type and which is not shown in the drawings, a conventional bristle yarn drawing assembly, indicated overally at the reference number 1, which supplies with extruded and drawn bristle yarns a guide assembly 2, including a plurality of guiding pulleys 3 which are so arranged as to properly drive a set number of bristle yarns which have been subdivided after the bristle yarn drawing step.
- the bristle yarns are then supplied to a bristle yarn bundling assembly, indicated overally at the reference number 10, comprising a guide tube 11 there-through the yarn material is caused to pass, and supporting a binding-thread bobbin 12 of an assembling yarn 13.
- the thread bobbin 12 is coupled to an electric motor 15 which, by means of warm screw transmission elements 16 causes said thread bobbin 12 to turn about its axis so that the assembling or binding thread 13 is wrapped about the yarns 5 to provide a yarn bundle containing a set number of yarns.
- the assembling thread 13, supplied from the thread bobbin 12, is driven inside an yarn guiding element 17, into which there is introduced the yarn 5 assembly coaxially supplied to the assembling thread 13 bobbin 12.
- the thus made yarn bundles are wound on a reeling frame, overally indicated at the reference number 20, which is operated to provide a yarn assembly hank holding a set number of yarn bundles which, in turn, hold a set number of individual yarns.
- This hank which is made with an easily controllable turn numbers, is then cut so as to provide a bundle of yarn assemblies which is wrapped in by a tape material so as to provide a stable bundle.
- the thus made bundle is then properly cut to given desired lengths.
- the invention provides a method in which, by counting the yarns immediately downstream of the drawing step, it is possible to obtain an end product including an already known yarn count, thereby the bristles can be made according to a pre-set yarn number, so as to provide perfectly balanced rotary brushes.
Abstract
The present invention relates to an apparatus for making rotary-brush bristle assemblies, which comprises, downstram of the bristle yarn extruding assembly (1), a drawing and guiding assembly (2), adapted to supply a given number of yarns (5) to a yarn associating assembly (10), provided for associating the bristle yarns (5) by means of a thread (13) which is wrapped thereon so as to form a bristle yarn bundle holding a given number of yarns (5).
Downstream of the yarn bundling assembly there being provided a reeling frame (20) for forming a yarn hank.
Downstream of the yarn bundling assembly there being provided a reeling frame (20) for forming a yarn hank.
Description
- The present invention relates to an apparatus for making rotary-brush bristle assemblies; according to another aspect thereof, the invention relates to a method for making the mentioned rotary-brush bristle assemblies.
- As is known, for making rotary brushes, for example for automatic vehicle washing systems, there are conventionally used bristles which are made starting from plastic material yarns made by extruding methods.
- Also known is the fact that during the bristle forming operations there is necessary to extrude elementary yarns wich, after several processing steps, that is a drawing processing step, a hank forming processing step, a cutting step and an end portion trimming step, must be manually counted, so as to provide washing brushes having a preset even yarn count.
- The requirement of making rotary brushes including bristles formed by a given preset number of bristle yarns is mainly due to the fact that the bristles must be evenly distributed on the brush surface in order to prevent said brush from vibrating as it is turned and in order to provide a perfectly balanced rotary brush.
- As it should be apparent, the manually counting operation carried out on the bristle yarns is very expensive since it requires a very long time and a very great amount of labour.
- Accordingly, the aim of the present invention is to overcome the above mentioned drawbacks, by providing an apparatus which is adapted to automatically accurately count the bristle yarns.
- Within the scope of the above mentioned aim, a main object of the present invention is to provide such an apparatus which can be quickly and easily fitted downstream of the bristle yarn extruding assembly, without the need of performing substantial modifications to this extruding assembly.
- Another object of the present invention is to provide such an apparatus which is very reliably and safe in operation and can be easily constructed starting from easily available elements and materials and which, moreover, is very competitive from a mere economic standpoint.
- According to one aspect of the present invention, the above mentioned aim and objects, as well as yet other objects, which will become more apparent hereinafter, are achieved by a bristle yarn counting apparatus, for accurately counting the bristle yarn to be used for making rotary-brush bristle assemblies, characterized in that said apparatus comprises, downstream of a bristle yarn extruding assembly, a bristle yarn drawing and guiding assembly adapted to supply with a set number of bristle yarns a bristle yarn bundling assembly, adapted to associate the bristle yarns with one another by means of an outer wrapped thread so as to form a bristle yarn bundle holding a set number of bristle yarns, downstream of said bristle yarn bundling assembly there being moreover provided a reeling frame adapted to form a bristle yarn hank.
- Further characteristics and advantages of the invention will become more apparent from the following detailed description of a preferred, though not exclusive, embodiment of a counting apparatus for making rotary brush bristle assemblies, which is illustrated, by way of an indicative but not limitative example, in the accompanying drawings, where:
- Figure 1 is a schematic elevation view illustrating the apparatus according to the invention;
- Figure 2 is a top plan view of the apparatus according to the invention;
and - Figure 3 is a schematic view illustrating the bristle yarn bundling assembly.
- With reference to the figures of the accompanying drawings, the apparatus for making rotary-brush bristle assemblies according to the invention, comprises, downstream of an extruding assembly, of a substantially known type and which is not shown in the drawings, a conventional bristle yarn drawing assembly, indicated overally at the reference number 1, which supplies with extruded and drawn bristle yarns a
guide assembly 2, including a plurality of guidingpulleys 3 which are so arranged as to properly drive a set number of bristle yarns which have been subdivided after the bristle yarn drawing step. - The bristle yarns, indicated at the
reference number 5, are then supplied to a bristle yarn bundling assembly, indicated overally at thereference number 10, comprising aguide tube 11 there-through the yarn material is caused to pass, and supporting a binding-thread bobbin 12 of an assemblingyarn 13. - The
thread bobbin 12 is coupled to anelectric motor 15 which, by means of warmscrew transmission elements 16 causes saidthread bobbin 12 to turn about its axis so that the assembling or bindingthread 13 is wrapped about theyarns 5 to provide a yarn bundle containing a set number of yarns. - The assembling
thread 13, supplied from thethread bobbin 12, is driven inside an yarn guidingelement 17, into which there is introduced theyarn 5 assembly coaxially supplied to the assemblingthread 13bobbin 12. - Downstream of the bunding assembly, the thus made yarn bundles are wound on a reeling frame, overally indicated at the
reference number 20, which is operated to provide a yarn assembly hank holding a set number of yarn bundles which, in turn, hold a set number of individual yarns. - This hank, which is made with an easily controllable turn numbers, is then cut so as to provide a bundle of yarn assemblies which is wrapped in by a tape material so as to provide a stable bundle.
- The thus made bundle is then properly cut to given desired lengths.
- In this connection it is to be pointed out that, at the end of the yarn trimming operation, the number of yarns included in each yarn assembly will be precisely determined, thereby obviating any needs of manually counting the yarns.
- Thus, the invention provides a method in which, by counting the yarns immediately downstream of the drawing step, it is possible to obtain an end product including an already known yarn count, thereby the bristles can be made according to a pre-set yarn number, so as to provide perfectly balanced rotary brushes.
- In this connection, very important is for the inventive method the yarn bundling step which affords the possibility of making yarn assemblies holding a set number of yarns.
- From the above disclosure it should be apparent that the invention fully achieves the intended aim and objects.
- While the invention has been disclosed and illustrated with reference to a preferred embodiment thereof, it should be apparent that the disclosed embodiment is susceptible to several modifications and variations all of which will come within the scope and spirit of the appended claims.
Claims (6)
- A bristle yarn counting apparatus, for accurately counting the bristle yarns to be used for making rotary-brush bristle assemblies, characterized in that said apparatus comprises, downstream of a bristle yarn extruding assembly, a bristle yarn drawing and guiding assembly adapted to supply with a set number of bristle yarns a bristle yarn bundling assembly, adapted to associate the bristle yarn with one another by means of an outer wrapped thread so as to form a bristle yarn bundle holding a set number of bristle yarns, downstream of said bristle yarn bundling assembly there being moreover provided a reeling frame adapted to form a bristle yarn hank.
- An apparatus according to claim 1, characterized in that said bristle yarn bundling assembly comprises a hollow tube into which there are introduced yarn assemblies including a set number of yarns, an assembling thread bobbin adapted to supply an assembling thread being provided coaxially of said hollow tube.
- An apparatus according to the preceding claims, characterized in that said thread bobbin is rotatively driven on its axis so as to coil-wind said assembling thread about said yarn assemblies.
- An apparatus according to one or more of the preceding claims, characterized in that said thread bobbin is rotatively driven by an electric motor adapted to rotatively drive an hollow shaft supporting said bobbin.
- An apparatus according to one or more of the preceding claims, characterized in that said apparatus further comprises a yarn guiding element into which there are introduced said yarn assemblies and assembling thread.
- A method for making yarn bristles for rotary brushes and the like, characterized in that said method comprises the steps of extruding yarns, drawing said extruded yarns, dividing the drawn extruded yarns so as to provide yarn assemblies holding a set number of yarns, winding about said yarn assemblies an assembling thread, providing a hank from said yarn assemblies, cutting said hank so as to provide a yarn assembly bundle,winding about said cut hank a tape member, cutting to a desired length the yarn assembly bundle and trimming the end portions of said yarns.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1944290 | 1990-02-22 | ||
IT19442A IT1239641B (en) | 1990-02-22 | 1990-02-22 | APPARATUS, SUITABLE FOR PREPARING A PREDETERMINED NUMBER OF WIRES, FOR THE CREATION OF BRISTLES FOR ROTARY AND SIMILAR BRUSHES, AND RELATED PROCEDURE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0447738A2 true EP0447738A2 (en) | 1991-09-25 |
EP0447738A3 EP0447738A3 (en) | 1991-10-02 |
Family
ID=11158024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900830126 Withdrawn EP0447738A3 (en) | 1990-02-22 | 1990-03-29 | Apparatus for making rotary-brush bristle assemblies |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0447738A3 (en) |
IT (1) | IT1239641B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995014405A1 (en) * | 1993-11-24 | 1995-06-01 | United Technologies Corporation | Method of brush seal tufting |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111838955B (en) * | 2020-08-05 | 2021-10-15 | 津市市金湘猪鬃实业有限公司 | Bristle bundling equipment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1490582A (en) * | 1966-05-20 | 1967-08-04 | Improvements to composite cables with at least two conductors | |
DE2849510A1 (en) * | 1978-11-15 | 1980-06-04 | Zahoransky Anton Fa | Brush with several bristle tufts offset relative to each other - is mfd. by positioning member on machine for correct alignment |
EP0086412A2 (en) * | 1982-02-17 | 1983-08-24 | Pedex & Co. GmbH | Method of and device for making plastics bundles of bristles and individual bristles |
DE3643202C1 (en) * | 1986-12-18 | 1988-03-24 | Schlerf Coronet Werke | Process for the production of bristle goods |
DE3718811C1 (en) * | 1987-06-05 | 1988-03-31 | Schlerf Coronet Werke | Process and device for the production of plastic bristle goods |
-
1990
- 1990-02-22 IT IT19442A patent/IT1239641B/en active IP Right Grant
- 1990-03-29 EP EP19900830126 patent/EP0447738A3/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1490582A (en) * | 1966-05-20 | 1967-08-04 | Improvements to composite cables with at least two conductors | |
DE2849510A1 (en) * | 1978-11-15 | 1980-06-04 | Zahoransky Anton Fa | Brush with several bristle tufts offset relative to each other - is mfd. by positioning member on machine for correct alignment |
EP0086412A2 (en) * | 1982-02-17 | 1983-08-24 | Pedex & Co. GmbH | Method of and device for making plastics bundles of bristles and individual bristles |
DE3643202C1 (en) * | 1986-12-18 | 1988-03-24 | Schlerf Coronet Werke | Process for the production of bristle goods |
DE3718811C1 (en) * | 1987-06-05 | 1988-03-31 | Schlerf Coronet Werke | Process and device for the production of plastic bristle goods |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995014405A1 (en) * | 1993-11-24 | 1995-06-01 | United Technologies Corporation | Method of brush seal tufting |
Also Published As
Publication number | Publication date |
---|---|
IT1239641B (en) | 1993-11-11 |
IT9019442A0 (en) | 1990-02-22 |
IT9019442A1 (en) | 1991-08-23 |
EP0447738A3 (en) | 1991-10-02 |
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