GB2498922A - Antistatic link belt - Google Patents
Antistatic link belt Download PDFInfo
- Publication number
- GB2498922A GB2498922A GB1121550.6A GB201121550A GB2498922A GB 2498922 A GB2498922 A GB 2498922A GB 201121550 A GB201121550 A GB 201121550A GB 2498922 A GB2498922 A GB 2498922A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- belt
- link
- synthetic thermoplastic
- thermoplastic material
- 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- Withdrawn
Links
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 17
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 15
- 229920000728 polyester Polymers 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 239000004952 Polyamide Substances 0.000 claims description 8
- 229920002647 polyamide Polymers 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910000906 Bronze Inorganic materials 0.000 claims description 6
- 239000010974 bronze Substances 0.000 claims description 6
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 5
- 229920002530 polyetherether ketone Polymers 0.000 claims description 5
- 229920000265 Polyparaphenylene Polymers 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 4
- -1 polyphenylene Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000009998 heat setting Methods 0.000 claims description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/54—Endless load-carriers made of interwoven ropes or wires
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/0027—Screen-cloths
- D21F1/0072—Link belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/10—Antistatic features
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Ropes Or Cables (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
A link-belt comprising a multiplicity of helical coils 11 joined in side-by-side disposition by respective hinge wires 12 engaged with the interdigitated turns thereof, the material of at least one of the coils 11 and hinge wires 12 comprising a synthetic thermoplastic material, the material of a least one of the coils 11 comprising a conductive material 20, and at least one of the coils 11 and hinge wires 12 being deformed from an initial constant transverse cross-section in the regions in which the said coils and hinge wires lie in close disposition thereby to stabilise the said link-belt. The conductive material 20 may coat the thermoplastic coil or hinge wire 11,12, or may be dispersed within the thermoplastic material.
Description
LINK-BELT AND A METHOD OF PRODUCTION THEREOF
The invention refers to a link-belt comprising a synthetic thermoplastic material and a conductive material, a method of manufacture thereof, and a use thereof to reduce fire risk and/or production of sparks.
It is known to produce a link-belt for use in the context of papermaking machines and/or dewatering processes from a multiplicity of helical coils joined in side-by-side disposition by hinge wires threaded through the interdigitated turns of adjacent such coils. Reference for example is made to W080/02703. The use of a conductive material in such a link-belt is described in W096/11051, wherein it is disclosed that conductive material can be inserted into and/or onto a non-conductive base structure to provide conductive/antistatic properties. One specific embodiment of W096/11051 discloses conductive material being present in the form of stuffer yarns, wherein these stuffer yarns extend in the cross machine direction of the link-belt, are in addition to the hinge wires, and are located within the coils. A second specific embodiment of W096/11051 discloses conductive material being present as staple fibres needled to one or both sides of the belt. No further options for placement of the conductive material are disclosed.
It has now been discovered that the use of conductive stuffer yarns may result in the stuffer yarns creeping out of the link-belt during use, which results in snagging and consequent damage to the link-belt and items it comes into contact with, possibly resulting in expensive damage to belt-press machinery. In addition, the use of stuffer yarns and conductive staple fibres gives rise to additional belt weight which may give rise to handling and drive difficulties, for example concerning belt tracking.and furthermore affects the filtration characteristics and permeability of the link-belt. Yet further, such stuffer yarns are
typically manually inserted which is a time consuming and consequently costly process. It is therefore desirable to find an alternative manner of placing conductive material into a link-belt, which is cheaper to make and simpler to use, whilst maintaining conductive and antistatic features in order to reduce the fire and/or spark risk, particularly in the paper industry.
According to a first aspect of the present invention, there is provided a link-belt comprising a multiplicity of helical coils joined in side-by-side disposition by respective hinge wires engaged with the interdigitated turns thereof, the material of at least one of the coils and hinge wires comprising a synthetic thermoplastic material, the material of at least one of the coils comprising a conductive material, and at least one of the coils and hinge wires being deformed from an initial constant transverse cross-section in the regions in which the said coils and hinge wires lie in close disposition thereby to stabilise the said link-belt.
According to a second aspect of the present invention, there is provided a method for the manufacture of a link-belt defined by a multiplicity of helical coils joined in side-by-side disposition by hinge wires comprising a thermoplastic material threaded through the interdigitated turns of adjacent such coils, including the steps of arranging adjacent coils in interdigitated disposition, threading a respective hinge wire through the interdigitated turns of each pair of adjacent coils, subjecting the resultant link structure to a suitable heat-setting temperature and longitudinal tension to cause the hinge wires to deform and assume a crimped configuration in the plane of the structure, and subsequently reducing the temperature of the structure, wherein at least one helical coil comprises a conductive
According to a third aspect of the present invention, there is provided the use of a belt according to the first aspect of the invention, to reduce fire risk and/or production of sparks.
Suitable synthetic thermoplastic materials can comprise polyester, polyamide, polyether ether ketone (PEEK) and polyphenylene sulphide (PPS) and can be monofilament yarns. Preferably all of the coils and hinge wires of the link-belt of the present invention comprise a suitable synthetic thermoplastic material.
Preferably at least one of the coils of the link-belt comprises both a synthetic thermoplastic material and a conductive material, for example a coil could comprise a synthetic thermoplastic core and an outer coating of conductive material. Such an embodiment could be exemplified by a polyester core surrounded by extruded graphite. Alternatively a coil could comprise a dispersion of conductive compound in a thermoplastic polymer. Such dispersions are particularly useful when using polyamide as the synthetic polymeric material since polyamide is unlikely to stick well to outer coatings of conductive material, and shedding could therefore occur.
Suitable conductive materials may be based on thermoplastics such as polyester, polyamide, polyphenylene sulphide, polyether ether ketone and cross-linked polyethylene. In order to make such thermoplastics conductive, materials such as graphite eg as graphite powder, or conductive carbon black may be added. Metallic materials such as bronze, copper and phosphor bronze may also be suitable as conductive materials. Such thermoplastic or metallic materials may take the form of yarns.
Preferably more than one coil comprising both a synthetic thermoplastic material and a conductive material is present, for example every fifth coil could comprise both a synthetic thermoplastic material and a conductive material. Alternatively it could be every
[3]
other coil, every tenth coil, every fifteenth coil etc, or in a random arrangement. Adjusting the number of conductive coils correspondingly adjusts conductivity.
Preferably adjacent helical coils are of opposite hand. Preferably the material of both the coils and the hinge wires is deformed in the regions in which the coils and the hinge wires lie in close disposition. Preferably the hinge wires are of crimped form, and the deformation is at least 5% of the initial diameter thereof.
The invention will now be described further, by way of example only, with reference to the accompanying drawings in which;
Figure 1 is a plan view of a link-belt according to the invention; and
Figure 2 is a cross section of a coil of monofilament polyester fibre coated in graphite, 11', as depicted in Figure 1.
Figure 1 shows a multiplicity of individual coils 11 of monofilament polyester material, and a coil 11' of monofilament polyester fibre coated in graphite, arranged in interdigitated side-by-side disposition, adjacent coils being connected together by respective hinge wires 12 threaded through the tunnels formed by such interdigitated coils 11 and 11'. Adjacent coils 11 and 11' are of the opposite hand. The hinge wires 12 are deformed into a crimped appearance and the end regions of the individual turns are deformed. The structure is set by subjecting the fabric, when under tension, to a suitable heat setting temperature for the material, thus to impart dimensional stability to the fabric.
Figure 2 shows an outer coating of graphite 20 applied to a core of monofilament polyester fibre 21, to create a conductive coil.
[4]
Claims (1)
- A link-belt comprising a multiplicity of helical coils (11) joined in side-by-side disposition by respective hinge wires (12) engaged with the interdigitated turns thereof, the material of at least one of the coils (11) and hinge wires (12) comprising a synthetic thermoplastic material, the material of at least one of the coils (11) comprising a conductive material, and at least one of the coils (11) and hinge wires (12) being deformed from an initial constant transverse cross-section in the regions (13, 15) in which the said coils and hinge wires lie in close disposition thereby to stabilise the said link-belt.The link-belt of claim 1, wherein the material of each of the coils (11) and the hinge wires (12) comprises a synthetic thermoplastic material.A link-belt of claim 1 or claim 2, wherein at least one of the coils (11) comprises both a synthetic thermoplastic material and a conductive material.The link-belt of any preceding claim, wherein the synthetic thermoplastic material is a monofilament yarn.The link belt of any preceding claim, wherein the synthetic thermoplastic material comprises polyester, polyamide, polyether ether ketone or polyphenylene sulphide.[5]The link belt of any preceding claim, wherein the conductive material comprises bronze, copper, phosphor bronze or graphite.The link belt of any preceding claim, wherein at least one of the coils (11) comprises conductive material which coats the synthetic thermoplastic material.The link-belt of claim 7, wherein the conductive material is graphite and the synthetic thermoplastic material is polyester.The link-belt of any of claims 1-6, wherein at least one of the coils (11) comprises a conductive material which is dispersed within the synthetic thermoplastic material.The link-belt of claim 9, wherein the synthetic thermoplastic material is polyamide.The link-belt of any preceding claim, wherein the material of both the coils (11) and the hinge wires (12) is deformed in the regions in which the coils (11) and hinge wires (12) lie in close disposition.[6]12.The link-belt of any preceding claim, wherein the hinge wires (12) are of crimped form, and the deformation is at least 5% of the initial diameter thereof.13. The link-belt of any preceding claim, wherein the deformation of the material of the coils (11) is equal to approximately 10% of the initial diameter of such material.14. A method for the manufacture of a link-belt defined by a multiplicity of helical coils (11) joined in side-by-side disposition by hinge wires (12) comprising a synthetic thermoplastic material threaded through the• • •• • •t interdigitated turns of adjacent such coils, including the steps of arranging• •, adjacent coils in interdigitated disposition, threading a respective hinge wire• •through the interdigitated turns of each pair of adjacent coils, subjecting the . .. resultant link structure to a suitable heat-setting temperature and longitudinal0 • •• •••tension to cause the hinge wires to deform and assume a crimped configuration in the plane of the structure, and subsequently reducing the temperature of the structure, wherein at least one helical coil (11) comprises a conductive material.15. The method of claim 14, wherein the helical coils comprises a synthetic thermoplastic material.[7]16.The method of either of claims 14 or 15, wherein the synthetic thermoplastic material is a monofilament yarn.17. The method of any of claims 14-16, wherein the synthetic thermoplastic material comprises polyester, polyamide, polyether ether ketone or polyphenylene sulphide.18. The method of any of claims 14-17, wherein the conductive material comprises bronze, copper, phosphor bronze or graphite.19. The method of any of claims 14-18, wherein at least one of the coils (11) comprises both a synthetic thermoplastic material and a conductive material.20. The method of any of claims 14-19, wherein at least one of the coils (11). .. comprises aconductive material which coats the synthetic thermoplastic• • •• • • •. I • material.21. The method of claim 20, wherein the conductive material is graphite and the synthetic thermoplastic material is polyester.22. The method of any of claims 14-19, wherein at least one of the coils (11) comprises a conductive material which is dispersed within the synthetic thermoplastic material.[8]The method of claim 22, wherein the synthetic thermoplastic material is polyamide.Use of a belt according to any of claims 1-13, to reduce fire risk and/or production of sparks.[9]
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1121550.6A GB2498922A (en) | 2011-12-14 | 2011-12-14 | Antistatic link belt |
| PCT/GB2012/053121 WO2013088153A1 (en) | 2011-12-14 | 2012-12-13 | Link-belt and a method of production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1121550.6A GB2498922A (en) | 2011-12-14 | 2011-12-14 | Antistatic link belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201121550D0 GB201121550D0 (en) | 2012-01-25 |
| GB2498922A true GB2498922A (en) | 2013-08-07 |
Family
ID=45560494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1121550.6A Withdrawn GB2498922A (en) | 2011-12-14 | 2011-12-14 | Antistatic link belt |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2498922A (en) |
| WO (1) | WO2013088153A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2459794A1 (en) * | 1979-06-25 | 1981-01-16 | May & Baker Ltd | ACYLAMINOBENZOIC ACID DERIVATIVES, PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING SAME |
| FR2489794A1 (en) * | 1980-09-06 | 1982-03-12 | Scapa Porritt Ltd | IMPROVED ARTICULATED BELT, PARTICULARLY FOR A PAPER MACHINE |
| US5810159A (en) * | 1995-09-16 | 1998-09-22 | Thomas Josef Heimbach Gmbh & Co. | Link conveyor especially for paper-making machines |
| DE20319588U1 (en) * | 2003-12-16 | 2004-03-11 | Heimbach Gmbh & Co. | Conveyor belt assembled from plastic strands and used in paper or board manufacture includes conductive particles in outer surfaces |
| WO2004037683A2 (en) * | 2002-10-23 | 2004-05-06 | Voith Fabrics Patent Gmbh | Conveyor belt |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921491A1 (en) | 1979-05-26 | 1980-12-04 | T T Haaksbergen B V I O | METHOD FOR PRODUCING A LINKED BAND |
| DE3638036A1 (en) * | 1986-11-07 | 1988-05-11 | Siteg Siebtech Gmbh | SPIRAL LINK BAND WITH DIVIDED SPIRALS |
| GB9420216D0 (en) | 1994-10-06 | 1994-11-23 | Scapa Group Plc | Dewatering process |
| US20110151735A1 (en) * | 2009-12-23 | 2011-06-23 | William Harwood | Industrial fabric with traction coating |
-
2011
- 2011-12-14 GB GB1121550.6A patent/GB2498922A/en not_active Withdrawn
-
2012
- 2012-12-13 WO PCT/GB2012/053121 patent/WO2013088153A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2459794A1 (en) * | 1979-06-25 | 1981-01-16 | May & Baker Ltd | ACYLAMINOBENZOIC ACID DERIVATIVES, PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING SAME |
| FR2489794A1 (en) * | 1980-09-06 | 1982-03-12 | Scapa Porritt Ltd | IMPROVED ARTICULATED BELT, PARTICULARLY FOR A PAPER MACHINE |
| US5810159A (en) * | 1995-09-16 | 1998-09-22 | Thomas Josef Heimbach Gmbh & Co. | Link conveyor especially for paper-making machines |
| WO2004037683A2 (en) * | 2002-10-23 | 2004-05-06 | Voith Fabrics Patent Gmbh | Conveyor belt |
| DE20319588U1 (en) * | 2003-12-16 | 2004-03-11 | Heimbach Gmbh & Co. | Conveyor belt assembled from plastic strands and used in paper or board manufacture includes conductive particles in outer surfaces |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201121550D0 (en) | 2012-01-25 |
| WO2013088153A1 (en) | 2013-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9913415B2 (en) | EMI shielding textile fabric, wrappable sleeve constructed therefrom and method of construction thereof | |
| DE69810964T2 (en) | WOVEN TUBE | |
| CA2459735C (en) | Nonwovens forming or conveying fabrics with enhanced surface roughness and texture | |
| US6722394B2 (en) | Industrial textiles assembled from pre-crimped components | |
| EP3513093B1 (en) | Electrically conductive belt | |
| RU2017137140A (en) | SHELL FOR PROTECTION AGAINST ELECTROMAGNETIC INTERFERENCE AND METHOD FOR ITS MANUFACTURE | |
| CA1248799A (en) | Abrasion and hydrolysis resistant joining wire and coil material for fabric seams | |
| JP2016520724A (en) | EPTFE fiber sleeve capable of self-winding and method of construction thereof | |
| US20060124268A1 (en) | Spiral fabrics | |
| GB2498922A (en) | Antistatic link belt | |
| CA2493018C (en) | On-machine-seamable industrial fabric having seam-reinforcing rings | |
| RU2646733C2 (en) | Industrial fabrics comprising infinity shape coils | |
| US12466109B2 (en) | Method for manufacturing a fibrous material pre-impregnated with thermoplastic polymer in a fluidised bed | |
| US20160055936A1 (en) | Braided structure with electrically conductive tows | |
| US20120241147A1 (en) | Reelable support | |
| MXPA05012441A (en) | Method and device for stabilizing unseamed loops. | |
| CN121358904A (en) | Self-wrapping multi-layer wear-resistant and electromagnetic interference-resistant sleeve and its manufacturing method | |
| CN119816637A (en) | Methods, Infrastructure and Grids | |
| DE102007055760A1 (en) | Joint structure i.e. helical-joint band, for paper machine clothing, has turns formed from deformable filaments or yarns made of polymer material or polymer composition selected from two-phase-system containing two phases |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |