JPH0248447B2 - - Google Patents
Info
- Publication number
- JPH0248447B2 JPH0248447B2 JP60173237A JP17323785A JPH0248447B2 JP H0248447 B2 JPH0248447 B2 JP H0248447B2 JP 60173237 A JP60173237 A JP 60173237A JP 17323785 A JP17323785 A JP 17323785A JP H0248447 B2 JPH0248447 B2 JP H0248447B2
- Authority
- JP
- Japan
- Prior art keywords
- conveyor belt
- conveyor
- pipe
- conveyed
- torsion
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、平ベルトを上向きにパイプ状に丸め
て、搬送物が飛散しないようにして搬送し得るよ
うにしたパイプコンベアにおける搬送ベルトの捩
れ検出方法に関するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a pipe conveyor in which a flat belt is rolled upward into a pipe shape so that objects can be transported without scattering. This relates to a detection method.
概略を第３図及び第４図に示すように、前後端
部所定の位置に配設されたローラ２１，２２の間
に、無端帯状のゴム製の搬送ベルト２３を掛け回
し、その少なくとも上側の往路部分を、多数の保
形ローラ２４により、上向きに丸め、その中に、
例えば、後部ローラ２２の近くに設けたホツパー
２５より投入した被搬送物２６を包み込んで搬送
するようにしたパイプコンベアは公知である。
As schematically shown in FIGS. 3 and 4, an endless belt-shaped rubber conveyor belt 23 is wound between rollers 21 and 22 disposed at predetermined positions at the front and rear ends, and at least the upper The outgoing portion is rolled upward by a large number of shape-retaining rollers 24, and inside it,
For example, a pipe conveyor is known in which a conveyed object 26 introduced from a hopper 25 provided near a rear roller 22 is wrapped around and conveyed.
このようなパイプコンベアにおいて、ローラ２
１，２２間の距離が長いと、搬送ベルト２３の各
部の寸法や性状の僅かな差異、あるいは保形ロー
ラ２４の偏摩耗や、各部の精度誤差等の蓄積が原
因となつて、搬送ベルト２３が捩れることがあ
る。
In such a pipe conveyor, roller 2
If the distance between 1 and 22 is long, slight differences in the dimensions and properties of each part of the conveyor belt 23, uneven wear of the shape retaining roller 24, and accumulation of precision errors in each part may cause the conveyor belt 23 to may become twisted.
そのため、搬送ベルトの走行は不円滑となり、
しかも、パイプコンベア自体は、通常、この捩れ
に対する復元性を備えていないので、捩れは次第
に大きくなり、本来上方を向いていた往路部分の
閉塞部が、側方から、さらに下方を向くに至り、
被搬送物が落下するとともに、搬送ベルトや保形
ローラ等に無理な負荷を与え、その損耗を早める
こととなる。 As a result, the conveyor belt runs unsmoothly,
Moreover, the pipe conveyor itself usually does not have the ability to recover from this twisting, so the twisting gradually increases, and the blocked part of the outgoing path, which was originally facing upwards, ends up facing sideways and even downwards.
As the conveyed object falls, an unreasonable load is applied to the conveyor belt, shape retaining rollers, etc., which accelerates their wear and tear.
このような問題点を解決するためには、捩れを
早期に発見して、例えば、本出願人等による特開
昭57−141304号公報に記載されているように、手
動的手段で矯正するか、あるいは特開昭57−
145709号公報、または特開昭57−151508号公報に
記載されているように、検知ローラでこの捩れを
検出し、それに基づいて、電気的もしくは油圧式
手段で矯正することが考えられている。 In order to solve these problems, it is necessary to detect the twist at an early stage and correct it manually, as described in Japanese Patent Application Laid-Open No. 57-141304 by the present applicant, for example. , or JP-A-57-
As described in Japanese Patent Laid-open No. 145709 or Japanese Patent Application Laid-open No. 151508/1983, it has been proposed to detect this torsion with a detection roller and correct it using electric or hydraulic means based on the detected torsion.
搬送ベルトの捩れを直接的に監視することは、
実際的ではなく、また、搬送ベルトの表面に検知
ローラを直接に接触させ、検知ローラの傾きによ
つて捩れを知るようにしても、極く僅かな捩れの
検出は困難であるとともに、かなりの時間的遅れ
は避け難く、捩れ発生の初期において、的確な矯
正措置を構ずることはできないのが実情である。 Directly monitoring the torsion of the conveyor belt is
It is not practical, and even if the detection roller is brought into direct contact with the surface of the conveyor belt and the torsion is detected by the inclination of the detection roller, it is difficult to detect even the slightest torsion, and it is difficult to detect the slightest torsion. Time delays are unavoidable, and the reality is that it is not possible to take appropriate corrective measures in the early stages of twisting.
また、検知ローラが常時搬送ベルトに接触して
いるため、その耐久性にも問題があつた。 Furthermore, since the detection roller is constantly in contact with the conveyor belt, there is also a problem in its durability.
本発明は、丸められている搬送ベルトが、極く
僅か捩れても、無接触式の簡単な手段で、これを
直ちに発見することができ、もつて、適切な捩れ
の矯正措置を執らせるのに役立たせようとするも
のである。 According to the present invention, even if a rolled conveyor belt is slightly twisted, this can be immediately detected by a simple non-contact method, and appropriate measures can be taken to correct the twist. It is intended to be useful.
また、本発明は、被搬送物等により、捩れの検
知が妨げられることがないようにしたパイプコン
ベアにおける搬送ベルトの捩れ検知方法を提供す
ることを目的としている。 Another object of the present invention is to provide a method for detecting torsion of a conveyor belt in a pipe conveyor in which the detection of torsion is not obstructed by objects to be conveyed or the like.
上記目的を達するため、本発明によると、１対
のローラに掛け回した搬送ベルトにおける両ロー
ラ間の中間部を上向きにパイプ状に丸め、その中
に被搬送物を入れて搬送するようにしたパイプコ
ンベアにおいて、前記搬送ベルトにおる被搬送物
を載置する搬送面と反対側の非搬送面に、長手方
向を向く光学的特異帯状域を形成し、この帯状域
の存在の有無を、外部より検知装置によつて検知
することにより、搬送ベルトの捩れの有無を検知
することを特徴とするパイプコンベアにおける搬
送ベルトの捩れ検出方法が提供される。
In order to achieve the above object, according to the present invention, the intermediate portion between the two rollers of a conveyor belt that is wound around a pair of rollers is rolled upward into a pipe shape, and the object to be conveyed is placed inside the pipe and conveyed. In the pipe conveyor, an optically specific band-shaped region facing in the longitudinal direction is formed on the non-conveyance surface opposite to the transfer surface on which the conveyed object is placed on the conveyor belt, and the presence or absence of this band-shaped region is detected by external inspection. Furthermore, there is provided a method for detecting torsion of a conveyor belt in a pipe conveyor, which is characterized in that the presence or absence of torsion of the conveyor belt is detected by detection using a detection device.
第１図は、本発明の実施要領を例示するための
略縦断面図で、パイプ状に丸められた搬送ベルト
１の底部のほぼ中央部の外面、すなわち、被搬送
物を載置する搬送面と反対側の非搬送面に、光学
的に特異性のある塗料を、狭い幅をもつて長手方
向の帯状に塗ることにより、光学的特異帯状域２
を形成してある。
FIG. 1 is a schematic vertical cross-sectional view for illustrating the embodiment of the present invention, and shows the outer surface of the approximately central portion of the bottom of the conveyor belt 1 rolled into a pipe shape, that is, the conveyor surface on which the object to be conveyed is placed. By applying an optically specific paint in the form of a longitudinal band with a narrow width on the non-conveying surface opposite to the optically specific band area 2,
has been formed.
前記塗料としては、光をよく反射するもの、逆
に光をよく吸収するもの、搬送ベルト１と色彩的
に区分し易い色もしくは蛍光色のもの、あるいは
温度が上昇すると赤外線を発するもの等、搬送ベ
ルト１に比して、光学的に特異性あるものが使用
される。 The paint may be one that reflects light well, one that absorbs light well, one that has a color or fluorescent color that is easily distinguishable from the conveyor belt 1, or one that emits infrared rays when the temperature rises. Compared to the belt 1, a belt having optical specificity is used.
またこの塗料の代わり、上記のような特性のあ
る線状もしくは粉粒状着色物体を、搬送ベルト１
に、長手方向に埋設してもよい。 In addition, instead of this paint, a linear or powdery colored object with the above characteristics is applied to the conveyor belt 1.
It may also be buried in the longitudinal direction.
この光学的特異帯状域２に、投光素子３からの
光を、やや斜め方向から投光し、これを反射させ
て、フオトセル等の受光素子４で受けさせる。 Light from a light projecting element 3 is projected onto this optically specific band region 2 from a slightly oblique direction, reflected, and received by a light receiving element 4 such as a photocell.
受光素子４の起電力の変化により、光学的特異
帯状域２が正しい位置にあるか否か、換言すれ
ば、搬送ベルト１が捩れているか否かを知ること
ができる。 From the change in the electromotive force of the light-receiving element 4, it is possible to know whether or not the optically unique band-shaped region 2 is in the correct position, in other words, whether or not the conveyor belt 1 is twisted.
受光素子４の起電力の変化に応じて、適宣の捩
り矯正装置を作動させるか、警報を発する等し
て、異常を知らせるようにすることは言うまでも
ない。 Needless to say, depending on the change in the electromotive force of the light-receiving element 4, an appropriate torsion correcting device is activated or an alarm is issued to notify the user of the abnormality.
投光素子３及び受光素子４の数は任意であつ
て、いずれかもしくは双方を複数とすることによ
り、検知するべき捩りの範囲を、大小加減するこ
とができる。 The number of light emitting elements 3 and light receiving elements 4 is arbitrary, and by using a plurality of either or both, the range of torsion to be detected can be adjusted in size.
搬送ベルト１１における光学的特異帯状域２の
形成位置も任意であつて、例えば、パイプ状に丸
めた際に外側となる側縁部に設けてもよい。 The formation position of the optically unique band-shaped region 2 on the conveyor belt 11 is also arbitrary, and for example, it may be provided on the side edge portion that becomes the outer side when rolled into a pipe shape.
第２図は、本発明の別の例を示すもので、丸め
られた搬送ベルト１の底部外面の中央部には、加
熱されると赤外線を放射する、例えば石英からな
る光学的特異帯状域１２が形成されている。 FIG. 2 shows another example of the invention, in which in the center of the bottom outer surface of the rolled conveyor belt 1 there is an optically specific band 12 made of, for example, quartz, which emits infrared rays when heated. is formed.
この光学的特異帯状域１２を加熱素子１３で加
熱とし、それから放射される赤外線を、検知素子
１４で検知する。 This optically specific band region 12 is heated by a heating element 13, and the infrared rays emitted from it are detected by a detection element 14.
以上から明らかなように、本発明によると、次
のような効果を奏することができる。
As is clear from the above, according to the present invention, the following effects can be achieved.
(a) 丸められている搬送ベルトが、極く僅か捩れ
ても、無接触式の簡単な手段で、これを直ちに
発見することができ、もつて、適切な捩れの矯
正処置を執ることができる。(a) Even if a rolled conveyor belt is slightly twisted, this can be immediately detected using a simple non-contact method, and appropriate measures can then be taken to correct the twist. .
(b) 光学的特異帯状域を、搬送ベルトにおける非
搬送面に設けたので、光学的特異帯状域が被搬
送物により汚されたり、剥離させられたり、又
は検知装置による光学的特異帯状域の検知が、
被搬送物により直接、もしくはそれによる汚れ
により間接的に妨げられたりすることはなく、
捩れ検知の信頼性を向上することができる。(b) Since the optically unique band area is provided on the non-conveying surface of the conveyor belt, the optically unique band area may be contaminated or peeled off by the conveyed object, or the optically unique band area may be detected by a detection device. The detection is
It is not obstructed directly by the conveyed object or indirectly by contamination caused by it.
The reliability of twist detection can be improved.
第１図は、本発明の実施要領を説明するための
要部の縦断面図、第２図は、同じく別の例を示す
第１図と同様の図、第３図は、一般的なパイプコ
ンベアを略示する正面図、第４図は、第３図にお
ける−線拡大縦断面図である。
１……搬送ベルト、２……光学的特異帯状域、
３……投光素子、４……受光素子、１１……搬送
ベルト、１２……光学的特異帯状域、１３……加
熱素子、１４……検知素子。
FIG. 1 is a vertical cross-sectional view of the main part for explaining the implementation procedure of the present invention, FIG. 2 is a similar view to FIG. 1 showing another example, and FIG. 3 is a general pipe FIG. 4, a front view schematically showing the conveyor, is an enlarged vertical sectional view taken along the line - in FIG. 3. 1... Conveyor belt, 2... Optical singular zone,
3...Light projecting element, 4...Light receiving element, 11...Transport belt, 12...Optical singular band region, 13...Heating element, 14...Detecting element.
Claims (1)
る両ローラ間の中間部を上向きにパイプ状に丸
め、その中に被搬送物を入れて搬送するようにし
たパイプコンベアにおいて、前記搬送ベルトにお
ける被搬送物を載置する搬送面と反対側の非搬送
面に、長手方向を向く光学的特異帯状域を形成
し、この帯状域の存在の有無を、外部より検知装
置によつて検知することにより、搬送ベルトの捩
れの有無を検知することを特徴とするパイプコン
ベアにおける搬送ベルトの捩れ検知方法。1. In a pipe conveyor in which a conveyor belt is wound around a pair of rollers, the intermediate portion between both rollers is rolled upward into a pipe shape, and a conveyed object is placed inside and conveyed. By forming an optically specific band-shaped area facing in the longitudinal direction on the non-conveying surface opposite to the carrying surface on which the object is placed, and detecting the presence or absence of this band-shaped area from the outside using a detection device, A method for detecting twisting of a conveyor belt in a pipe conveyor, the method comprising detecting whether or not the conveyor belt is twisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17323785A JPS6236210A (en) | 1985-08-08 | 1985-08-08 | Method for detecting distortion of conveying belt in pipe conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17323785A JPS6236210A (en) | 1985-08-08 | 1985-08-08 | Method for detecting distortion of conveying belt in pipe conveyor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6236210A JPS6236210A (en) | 1987-02-17 |
| JPH0248447B2 true JPH0248447B2 (en) | 1990-10-25 |
Family
ID=15956693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17323785A Granted JPS6236210A (en) | 1985-08-08 | 1985-08-08 | Method for detecting distortion of conveying belt in pipe conveyor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6236210A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4536904B2 (en) | 2000-10-26 | 2010-09-01 | キヤノン株式会社 | Polygon mirror, optical scanning device and electrophotographic device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59170508U (en) * | 1983-04-27 | 1984-11-14 | 株式会社リコー | Endless belt control device |
-
1985
- 1985-08-08 JP JP17323785A patent/JPS6236210A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6236210A (en) | 1987-02-17 |
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