WO2006043423A1 - シーブ、シフタ、及びシーブの破れ検知装置 - Google Patents
シーブ、シフタ、及びシーブの破れ検知装置 Download PDFInfo
- Publication number
- WO2006043423A1 WO2006043423A1 PCT/JP2005/018518 JP2005018518W WO2006043423A1 WO 2006043423 A1 WO2006043423 A1 WO 2006043423A1 JP 2005018518 W JP2005018518 W JP 2005018518W WO 2006043423 A1 WO2006043423 A1 WO 2006043423A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conductive
- mesh
- sheave
- sieve
- conductor
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/469—Perforated sheet-like material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/18—Control
Definitions
- the present invention is applied to a sifter for sieving a granular material, and a sieve for detecting breakage of the sieving net using an electrical change caused when the sieving net is damaged.
- the present invention relates to a shifter including a sheave and a sheave break detection device.
- Patent Document 1 The invention described in Patent Document 1 is provided with a high-frequency detection sensor in the vicinity of a screen to detect and amplify a high frequency (breaking sound) in a sound range generated when a wire mesh of a sieving net is damaged, A comparison is made to determine whether the sound pressure level exceeds a preset reference level, and if it exceeds the reference level, an alarm sound is generated or the operation is stopped.
- Patent Document 1 Japanese Patent Publication No. 4-46867
- Patent Document 2 Japanese Patent Laid-Open No. 11-290781
- an object of the present invention is to detect sheave breakage in real time, prevent product loss due to breakage of the net, and greatly reduce the sheave management cost.
- the invention according to claim 1 is a sheave including a cylindrical or planar mesh formed by weaving a non-conductive warp and a non-conductive weft.
- one or more conductive woven yarns are mixed into a plurality of yarns in either the warp or weft direction of the mesh, and the plurality of yarns.
- It is a sheave characterized by comprising a series of folded conductors by alternately connecting adjacent end portions of each other with a conductive member.
- the non-conductive woven yarn for example, monofilaments such as nylon and polyester are preferred.
- the conductive woven yarn is preferably, for example, a carbon fiber woven yarn. Weave structure is plain weave or twill Woven is preferred.
- the non-conductive woven yarn is preferably mixed with only one of the non-conductive woven yarn warp or weft. The area to be mixed may be only the area where the net is easily broken, or the entire area of the net.
- Each of the strips constituting the plurality of strips may be composed of a conductive yarn and a non-conductive yarn in the same direction, or may be composed of only a plurality of conductive yarns.
- the conductor is preferably a strip or a combination of a strip and a linear body.
- a ring-shaped body or a frame-shaped body is formed around both ends of the cylindrical net in the axial direction, and the ring-shaped body or the frame-shaped body.
- the annular body or the frame-like body is preferably a belt body (for example, a woven fabric, a tape, or the like) sandwiched from the front and back of the end face of the net.
- a belt body for example, a woven fabric, a tape, or the like
- the invention described in claim 3 is a shifter comprising the sheave of claim 1 or 2.
- the shifter described in claim 3 can be applied to either an inline shifter or a non-inline shifter such as a vibration shifter.
- the inline shifter sheave is preferably cylindrical, and the vibration shifter sheave may be round or square.
- the invention according to claim 4 is an ohmmeter for measuring a resistance value or a voltage value of the conductor, comprising terminals connected to at least two locations of the conductor of the sheave according to claim 1 or 2.
- a sheave break detection is provided that includes a determination unit that determines that the net in the region is broken. Device.
- the sheave breakage can be detected in real time, it is possible to reduce the product loss when the sheave breakage is good by excluding only the product corresponding to the process in which the breakage has occurred. And can greatly reduce the manufacturing cost of the product. In addition, since the broken state of the sheave can be known without visually checking the mesh of the sheave, the management cost can be greatly reduced.
- the insulation of the conductor can be secured with a simple structure.
- a shifter having the same effect as that of claim 1 can be realized.
- FIG. 1 is a perspective view of a cylindrical sheave according to Embodiment 1 of the present invention.
- FIG. 2 (a) is a front view of a mesh body, (b) is a longitudinal sectional view of an annular body of the mesh body, (c) is a longitudinal sectional view of the mesh body, and (d) is a partially enlarged front view of the annular body. It is.
- FIG. 3 is an enlarged view of the yarn and weave of the net.
- FIG. 4 A development view of the network.
- FIG. 5 is a development view of a conductor.
- FIG. 6 is a layout diagram of conductors and conductors.
- FIG. 7 is a partial front view of a mesh body.
- FIG. 8 is a partially enlarged longitudinal sectional view of an annular body.
- FIG. 9 (a) is an enlarged view of a fixed portion of a mesh lead-out lead wire, and (b) is an enlarged side view of the same.
- FIG. 10 is a block diagram of a net having a conductor and a net breaking detection device connected to the net.
- FIG. 11 is a block diagram of a net breaking detection device.
- FIG. 12 (a) is a plan view of a square vibration sheave according to Embodiment 2 of the present invention, and (b) is a side view thereof.
- FIG. 13 (a) is a plan view of a mesh body according to Embodiment 2 of the present invention.
- (B) is a plan view of the same conductor
- Cylindrical sieve 1 is provided with a mesh-like body 5 of a cylindrical mold having a pair of annular body 3 and 4 at both ends of the street cylindrical net (scr een) 2 in the axial direction X shown in FIG. 2, as shown in FIG. 1 And an annular holder 6 for detachably holding the annular bodies 3 and 4.
- annular holder 6 For details of the structure of the annular holder 6, refer to International Publication No. WO2004Z060584A1. The simple structure of the annular holder 6 will be described.
- a plurality (four in this case) of rods 7 extending in the axial direction X and arranged at predetermined intervals along the circumferential direction, and the axial direction X A circular ring-shaped first frame 8 fixed to one end of the rod 7 so as to be arranged on a plane orthogonal to the rod 7 and fixed to the other end of the rod 7 so as to be arranged on a plane orthogonal to the axial direction X.
- a circular ring-shaped second frame 9 is arranged on a plane orthogonal to the axial direction X, and is guided between the first frame 8 and the second frame 9 by the rod 7 and moves in the axial direction X when not in use.
- a pair of circular ring-shaped first presser frames 11 that can be fixed with a fastener 10 (see Fig. 9 (a)), and can be fixed with a fastener 10 (see Fig. 9 (a)).
- first frame 8 and the second frame 9 A pair of circular ring-shaped second presser frames that can be moved in the axial direction X by being guided by the rod 7 and can be fixed with the fasteners 12 by sandwiching the annular body 4 with the second frame 9 when using a sieve. 13, a guide convex portion 14 provided at the outer peripheral end of the first frame 8, and a needle 15 fixed inside the first frame.
- the mesh body 5 has a cylindrical shape with the mesh 2 having a woven force made of a flexible, flexible material or synthetic resin (for example, polyester). Molded.
- the dimensions can take values as appropriate to suit the sieving specifications according to the application.
- the annular bodies 3 and 4 are fixed to both ends of the mesh 2, respectively. These annular bodies 3 and 4 are detachably held by the annular holder 6 described above. Next, the mesh 2 and the annular bodies 3 and 4 are bent into a cylindrical shape, and as shown in FIG.
- the structure of the annular body 3 is made of synthetic resin (for example, vinylon), and a strip-shaped insulating reinforcing cloth 31 is folded in the longitudinal direction. Insert both ends of the mesh 2 between the reinforcing cloths 31 at both ends, the fixing part 32 in which the reinforcing cloth 31 and the net 2 are sewn with the thread, the ring 33 connected to the fixing part 32, and the inside of the ring 33. It is a frame with a core material 34 (rope, etc.) that passes through it. As shown in FIG. 2 (d), the ring 33 is continuous in the circumferential direction of the net 2.
- synthetic resin for example, vinylon
- the annular body 3 is a circular frame in a side view, and is a frame having such a hardness that the circular shape is maintained on the longitudinal plane when being attached to and detached from the annular holder 6. It is preferable to reinforce by inserting a ring-shaped core material 34, but the inside may be hollow.
- the structure of the annular body 4 is the same as that of the annular body 3.
- the net 2 of the net 5 is a plain weave net composed of a synthetic resin woven yarn as a non-conductive yarn and a carbon fiber woven yarn as a conductive yarn.
- the warp and weft are made of synthetic resin, and the carbon fiber woven yarn is mixed into one of the warp and weft.
- a nylon 'monofilament net' is used as a base and a carbon fiber woven yarn is mixed in a part of the net (a mesh opening is 42 to 570 m), and a polyester 'monofilament net is used as a base.
- a mixture of carbon fiber woven yarns (mesh opening: 34 to 128 ⁇ m) can be mentioned.
- the synthetic resin woven yarn may be polyethylene terephthalate (PET).
- PET polyethylene terephthalate
- the material of the mesh 2 of the mesh body 5 is a plain weave cloth in which a conductive woven yarn is mixed with a non-conductive woven yarn.
- the aperture ratio (40 to 66%, particularly 44 to 55% is preferable) of the mesh body 5 and the mesh opening may be appropriate values depending on the application. For example, 16 mesh, mesh size 109 m, wire diameter 0.5 mm, aperture ratio 47.1%. Ma Other examples include 34 mesh, mesh size of 510 microns, wire diameter of 0.245 mm, and aperture ratio of 51%.
- Examples of the conductive woven yarn include a conductive polyester monofilament and examples using this monofilament as described in JP-A-08-074125.
- the mesh 2 is obtained by mixing a non-conductive woven yarn 23 that is a warp, a conductive woven yarn 24 that is a warp, and a non-conductive woven yarn 25 that is a weft with a plain weave. is there. Pass the non-conductive woven yarn 23 and the conductive woven yarn 24 together. Except for the mixed woven region, non-conductive woven yarn 23 as warp and non-conductive woven yarn 25 as weft are woven in plain weave. As another embodiment, only the conductive woven yarn 24 may be passed.
- Non-conductive yarn is preferably nylon or polyester. Carbon fiber yarn is preferred for the conductive yarn.
- a plurality of, for example, nine conductive woven yarns 24 in the illustrated structure and ten non-conductive woven fabrics are formed in a partial region of the mesh body 5.
- a plurality of strip-shaped conductive bands 40 to 51 each having a predetermined width and formed by the yarn 23 and a predetermined number of non-conductive woven yarns 25 are formed.
- These conductive bands 40 to 51 are mixed and woven in parallel with the axial direction X at a predetermined interval D.
- nonconductive bands 52 to 62 are formed in which the nonconductive woven yarn 23 and the nonconductive woven yarn 25 are plain woven.
- conductive members 70 to 80 conductive tape, such as a copper thin plate
- FIGS. 4 and 5 A series of conductors 82 in a folded shape is provided.
- the conductive members 70-80 are covered with insulating members 70a-80a.
- the longitudinal direction of the conductive members 70 to 80 is orthogonal to the longitudinal direction of the conductive bands 40 to 51.
- the reason for folding is to increase the number of detection points. Electrically, the longer the conductor 82, the greater the resistance value and the smaller the voltage value.
- the region where the conductive weaving yarn is mixed with the non-conducting weaving yarn is the lower quarter region where the powder load is applied (center angle is 106 °). It is provided in the part where the net may be broken or in the high part, and the other areas are not mixed. Since the region can be arbitrarily set, the conductive woven yarn 24 is mixed with the non-conductive woven yarns 23 and 25 not only in a part of the region of the mesh 5 but also in the entire region of the mesh 2. Also good. Also shown in Figs. 4, 5 and 8. As shown, the reinforcing cloth 31 covers and holds the end portions of the conductor 82 and the insulating members 70a to 80a.
- Ends 84 and 86 on the opposite side of the conductor 82 are formed in the annular body 3, and lead wires 88 and 90 are led out therefrom, respectively.
- the details of the Z portion in FIG. 6 are shown in FIGS. 9 (a) and 9 (b), and the electrode portions 92 and 94 of the conductors 88 and 90 are formed and protected by the insulator 96, respectively.
- the sheave break detecting device 91 includes terminals 93 and 95 connected to at least two places (here, electrodes 92 and 94) of the conductor 82, a power source 97, and a power switch 98 connected in series with the power source.
- a variable external resistor 99 for performing calibration (zero point adjustment) and a control unit 100 connected in parallel with the variable external resistor 99 are provided.
- the variable external resistor 99 (for example, 2 ⁇ ) and the control unit 100 are connected in series to the conductor 82, the power source 97, and the power source switch 98.
- the control unit 100 includes a controller, a voltmeter, a disconnection detection device, and an alarm output device.
- the initial voltage is set to a predetermined voltage. In FIG. 11, 3V is applied to the conductor 82 and 3V is applied to the variable external resistor 99.
- the voltage value applied to the control unit 100 is measured and constantly monitored.
- the resistance value increases and the voltage value applied to the control unit 100 decreases. If there is a decrease in the voltage value exceeding the specified value (3V), the control unit 100 determines that the network 2 in the area is damaged, and outputs an alarm with sound and Z or image, etc. To do.
- the breakage of the mesh 2 includes cutting caused by a rotating body rotating inside the mesh 2 and drilling due to powder wear.
- the sheave break detector 91 can detect the break of the network 2. As a result, even if foreign matter such as broken pieces of the mesh 2 leaks from the tear of the mesh 2 and enters the product, products containing the foreign matter can be excluded. Therefore, it is possible to ensure the safety of manufactured products, particularly foods and medicines.
- the tear detection device 91 measures a voltage value applied to the control unit 100 by flowing a weak current through the voltmeter of the control unit 100 and changing the weak current. Voltmeter has high accuracy Are preferred. If the voltmeter has normal accuracy, it may not be detected. The reason for using multiple conductive weaving yarns (9 in this case) is to prevent the current from becoming zero and the resistance from becoming infinite when all are cut. The reason why the length of the path of the conductor 82 is increased is to increase the detection range, and to reduce the pulsation width of the voltage value as much as possible when the powder actually passes.
- the control unit 100 sets a lower limit value as a threshold value of the voltage value for determining whether or not the network 2 is broken. When the measured value falls below the lower limit value of the voltage value, the control unit 100 determines that the network 2 is broken.
- the variable external resistance 99 is deleted in FIG. 11, and the control unit 100 is connected in parallel with the conductor 82, and the control unit 100
- the voltmeter is an ohmmeter.
- a weak current is passed through the resistance meter of the control unit 100, and the resistance value of the conductor 82 is measured by the change of the weak current. Since the resistance value increases when the mesh 2 is damaged, an upper limit value is set, and when the measured resistance value exceeds the upper limit value, a circuit that determines that the network 2 is damaged It is a configuration.
- the ohmmeter has high accuracy. preferable. If the ohmmeter has normal accuracy, it may not be detected. The reason why we made several conductive weaving yarns (9 in this case) is that the resistance value becomes infinite when all are cut.
- the mesh body 5 may be divided into two by a force intermediate frame or the like made of one mesh 2.
- a force intermediate frame or the like made of one mesh 2.
- FIG. 1 of International Publication No. WO2004Z060584A1 See the embodiment shown.
- the structure for attaching the cylindrical sheave 1 to the inline shifter is described in detail in International Publication No. WO2004Z060584A1, so please refer to it.
- a rectangular vibration sheave 101 according to the second embodiment of the present invention will be described with reference to FIGS.
- the vibration sheave 101 may be square or round.
- the vibration shifter 101 of the second embodiment is substantially the same as the cylindrical sheave of the first embodiment, the corresponding number is assumed to be in the 100s and the description is incorporated.
- This is a rectangular frame-shaped holder 106 which is not the annular holder 6.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/577,071 US20090000994A1 (en) | 2004-10-18 | 2005-10-06 | Sieve, Sifter, and Sieve Breakage Detector |
JP2006542319A JP4809775B2 (ja) | 2004-10-18 | 2005-10-06 | シーブ、シフタ、及びシーブの破れ検知装置 |
EP05790583A EP1806185B1 (en) | 2004-10-18 | 2005-10-06 | Sieve and sifter comprising a sieve breakage detector |
DE602005022211T DE602005022211D1 (de) | 2004-10-18 | 2005-10-06 | Sieb und sichter mit siebbruchdetektor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004303581 | 2004-10-18 | ||
JP2004-303581 | 2004-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006043423A1 true WO2006043423A1 (ja) | 2006-04-27 |
Family
ID=36202842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/018518 WO2006043423A1 (ja) | 2004-10-18 | 2005-10-06 | シーブ、シフタ、及びシーブの破れ検知装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090000994A1 (ja) |
EP (1) | EP1806185B1 (ja) |
JP (1) | JP4809775B2 (ja) |
CN (1) | CN100475365C (ja) |
DE (1) | DE602005022211D1 (ja) |
WO (1) | WO2006043423A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012505741A (ja) * | 2008-10-16 | 2012-03-08 | ビューラー・アクチエンゲゼルシャフト | 篩選別機 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008042916A1 (de) * | 2007-12-10 | 2009-06-18 | Bühler AG | Siebmaschine |
CN101884977B (zh) * | 2010-06-28 | 2012-10-31 | 三一重工股份有限公司 | 振动筛分机构及其振动筛筛网破裂的预警装置 |
EP2535120A1 (de) * | 2011-06-17 | 2012-12-19 | Bühler AG | Sieb und Verfahren für die Herstellung eines Siebes |
CN106153085B (zh) * | 2015-03-26 | 2019-05-24 | 中国移动通信集团公司 | 一种物品监控方法及装置 |
US11103811B2 (en) | 2016-11-04 | 2021-08-31 | Icm, Inc. | Mechanical separation devices |
CN106733637A (zh) * | 2017-03-14 | 2017-05-31 | 广东维杰物料自动化系统有限公司 | 筛网、粉体物料或颗粒物料筛分装置及输送系统 |
EP3659718B1 (de) | 2018-11-29 | 2021-06-16 | ALLGAIER WERKE GmbH | System und verfahren zur überwachung einer siebmaschine |
WO2021078338A1 (en) | 2019-10-25 | 2021-04-29 | GEA Scan-Vibro A/S | A vibrating apparatus system with a perforated screen element and a computer implemented method for providing an alarm signal |
JP2023105977A (ja) * | 2022-01-20 | 2023-08-01 | トヨタ自動車株式会社 | 電極の製造方法、分級システム、電極材料および電極 |
CN114471856B (zh) * | 2022-02-16 | 2022-08-19 | 东莞市华汇精密机械有限公司 | 一种涡轮机尾端静态出料式纳米砂磨机 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2443548A1 (de) * | 1974-09-11 | 1976-03-25 | Lesk Margarete | Einrichtung zur kontrolle des verschleisses technisch beanspruchter stoffbahnen |
US5996807A (en) * | 1993-07-17 | 1999-12-07 | Dietrich Reimelt Kg | Screening device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3422417A (en) * | 1968-02-02 | 1969-01-14 | Charles B Lowe | Metal bearing failure detector |
US4030028A (en) * | 1975-08-13 | 1977-06-14 | Allender David G | Method of and apparatus for detecting conductive particles in an oil flow system |
US4755744A (en) * | 1986-01-21 | 1988-07-05 | Rohrback Corporation | Plated sensor for monitoring corrosion or electroplating |
US5977782A (en) * | 1998-01-23 | 1999-11-02 | Cts Corporation | Fluid abrasion and/or corrosion sensors and method of sensing abrasion and/or corrosion |
US6585116B1 (en) * | 2000-02-22 | 2003-07-01 | Voith Sulzer Paper Technology North America, Inc. | Screening apparatus for fiber suspension |
-
2005
- 2005-10-06 CN CNB2005800275592A patent/CN100475365C/zh active Active
- 2005-10-06 US US11/577,071 patent/US20090000994A1/en not_active Abandoned
- 2005-10-06 JP JP2006542319A patent/JP4809775B2/ja active Active
- 2005-10-06 WO PCT/JP2005/018518 patent/WO2006043423A1/ja active Application Filing
- 2005-10-06 DE DE602005022211T patent/DE602005022211D1/de active Active
- 2005-10-06 EP EP05790583A patent/EP1806185B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2443548A1 (de) * | 1974-09-11 | 1976-03-25 | Lesk Margarete | Einrichtung zur kontrolle des verschleisses technisch beanspruchter stoffbahnen |
US5996807A (en) * | 1993-07-17 | 1999-12-07 | Dietrich Reimelt Kg | Screening device |
Non-Patent Citations (1)
Title |
---|
See also references of EP1806185A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012505741A (ja) * | 2008-10-16 | 2012-03-08 | ビューラー・アクチエンゲゼルシャフト | 篩選別機 |
Also Published As
Publication number | Publication date |
---|---|
US20090000994A1 (en) | 2009-01-01 |
JPWO2006043423A1 (ja) | 2008-05-22 |
EP1806185A1 (en) | 2007-07-11 |
EP1806185A4 (en) | 2008-05-07 |
CN100475365C (zh) | 2009-04-08 |
JP4809775B2 (ja) | 2011-11-09 |
DE602005022211D1 (de) | 2010-08-19 |
EP1806185B1 (en) | 2010-07-07 |
CN101031368A (zh) | 2007-09-05 |
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