JP3955514B2 - Barrel inner diameter measuring device - Google Patents

Barrel inner diameter measuring device Download PDF

Info

Publication number
JP3955514B2
JP3955514B2 JP2002262922A JP2002262922A JP3955514B2 JP 3955514 B2 JP3955514 B2 JP 3955514B2 JP 2002262922 A JP2002262922 A JP 2002262922A JP 2002262922 A JP2002262922 A JP 2002262922A JP 3955514 B2 JP3955514 B2 JP 3955514B2
Authority
JP
Japan
Prior art keywords
barrel
inner diameter
measuring device
guide
diameter measuring
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 - Fee Related
Application number
JP2002262922A
Other languages
Japanese (ja)
Other versions
JP2004098444A (en
Inventor
和明 高橋
彰 有泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP2002262922A priority Critical patent/JP3955514B2/en
Publication of JP2004098444A publication Critical patent/JP2004098444A/en
Application granted granted Critical
Publication of JP3955514B2 publication Critical patent/JP3955514B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B29B7/728—Measuring data of the driving system, e.g. torque, speed, power, vibration
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92114—Dimensions
    • B29C2948/92123—Diameter or circumference
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92361—Extrusion unit
    • B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/924—Barrel or housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は２軸押出機バレルの内径寸法を測定する測定装置に係り、特に押出機に組付けられたバレルを取外すことなく組付けたまま測定する測定装置に関する。
【０００２】
【従来の技術】
図４（イ）に示すように２軸押出機のバレル１は複数個のバレルブロック２ａ、２ｂ、２ｃ……を軸方向に繋いで組立てており、長期間使用している内に、内径面がスクリュとの接触により磨耗していくので、定期的にその磨耗量を測定し、磨耗量が許容限度を越えた場合、交換する必要がある。
２軸押出機においては２個のスクリュ軸に対応するバレル内面が交差する位置ａから両スクリュ軸の中心線ｂおよび中心線ｃ間での範囲Ａおよび範囲Ｂはほとんど磨耗がなく、磨耗する個所は図４（ロ）に示すように両スクリュ軸の中心線ｂおよび中心線ｃから外側のＸ部およびＹ部であるが、従来の測定方法は押出機にバレル１を取付けたまま軸方向に長いバレル内径のＣ寸法を測定することが出来なかった。
【０００３】
【発明が解決しょうとする課題】
従って、便宜的にＤ寸法、Ｅ寸法を測定し、Ｘ部およびＹ部の磨耗量を推定するか、或いはバレル１を押出機から取外し、シリンダゲージやマイクロメータにより測定する方法であり、磨耗量を測定するためには押出機からバレル１を取外す必要があり、その作業が面倒であったという欠点があった。
【０００４】
本発明の目的は前述のような欠点を取除き、押出機からバレルを取外すことなく、正確な磨耗量を測定することが出来るバレル内径測定装置を提供することにある。
【０００５】
【課題を解決するための手段】
前述の目的を達成するため本発明は２軸押出機の２個のスクリュ軸に対応するバレル内面が交差する位置ａから両スクリュ軸の中心線ｂおよび中心線ｃ間での範囲Ａおよび範囲のほとんど磨耗がないバレルの内径面に嵌着され、軸方向に摺動するガイドと、このガイドに設けた水平面上に取付けられ、バレルの両スクリュ軸中心を結ぶ水平方向内径面に接触するようにした変位検出用接触子を有する水平方向の変位を検出する検出器とを有して成ることを特徴とするバレル内径測定装置とした。
【０００６】
またガイドの摺動面はスクリュ外径とほぼ同一の円筒面を有し、この円筒面は２個のスクリュに対応するバレル内面が交差する位置ａから２個のスクリュ軸中心を通る鉛直面までの範囲に少なくとも円周角３０度の円筒面とすれば好適なバレル内径測定装置である。
【０００７】
さらにまたガイドの摺動面は２個のスクリュに対応するバレル内面が交差する位置から２個のスクリュ軸中心を通る鉛直面までの範囲に軸直角断面上で片側１点を含む少なくとも３点でバレル内面に接触するように成せばより好適なバレル内径測定装置である。
【０００８】
これにより押出機からバレルを取外すことなく、正確な磨耗量を測定することが出来る。
【０００９】
【発明の実施の形態】
以下本発明の実施の形態を図１により説明する。
バレルブロック１１にはスクリュ軸の外形面とほぼ同一形状の円筒面１２、１３が両スクリュ軸に対応するバレル内面が交差する位置ａから両方向に向って両スクリュ軸中心を通る鉛直線に至る摺動部１７を構成するガイド１４が軸方向に摺動可能に装着されている。このガイド１４に設けた水平面Ｆには変位検出器１５が取付けてあり、その変位検出用接触子１６がバレルブロック１１の水平方向中心軸上の内径面に接触するようになっている。
【００１０】
このような構成のガイド１４をバレル１１の内径面に装着することにより、変位検出器１５をバレル１１の直角断面内の位置を変化させることなく軸方向に移動させ、バレル１１の軸方向の磨耗状態を測定することが可能となった。
【００１１】
この変位検出器１５はマイクロメータ等でも良いが、電気的、磁気式或いは光学式に位置を検出し、電気信号に変換し、正規の寸法に加工された基準面から得られた基準信号と実際に測定されるバレル内面水平位置信号の差により磨耗量を測定するもので、軸方向に磨耗状態のプロファイルを表示することができるように構成することが可能である。
【００１２】
前述の実施例においては、ガイド１４の摺動部１７の円筒面１２、１３は幅方向が両スクリュ軸の中心線を通る鉛直面まで連続して形成されている例を説明したが、これに限らず図２に示すようにガイド１８の摺動部１９の円筒面２５，２６は両スクリュ軸の中心線を通る鉛直面の間に少なくとも円周角で３０°あれば十分である。
【００１３】
図３に（イ）より本発明の他の実施形態を説明する。この実施形態例はガイド２１の形状が前述の実施形態と異なっており、前述のガイド１４の下部にある摺動部１７の円筒面１２、１３に換えて、摺動部２４は一端が両スクリュ軸に対応するバレル内面の交差する線に夫々重なり、他端が夫々両スクリュ軸の中心線を通る鉛直面とバレル内面の交線に重なる平面２２、２３となっている。このような構成のガイド２１を用いても変位検出器１５をバレル１１の軸直角断面内の位置を変化させずに軸方向に摺動させて、バレル１１の軸方向の磨耗状態を測定することが可能である。
【００１４】
またこの実施態様例においては、ガイド２１の摺動部２４が両スクリュ軸に対応するバレル内面の交差する線と両スクリュ軸の中心線を通る鉛直面とバレル内面の交線の３位置でバレル内面と接しているが、これに限らず図３（ロ）に示すように両スクリュ軸の中心線ｂ、ｃを通る鉛直面とバレル内面の交差位置ａの２位置間であれば、前記ａ位置と２個あるバレル内面の内の一側の一点ｄおよび他側の一点ｅ、全３点は何処の位置であっても良い。
【００１５】
【発明の効果】
以上説明したように本発明は当初に掲げたようなバレルの磨耗量を測定するため、成形機からバレルを取外すという面倒な作業をすることなく、成形機にバレルを取付けたまま正確な磨耗量の測定が可能となった。
【図面の簡単な説明】
【図１】本発明の１実施形態例を示す２軸押出機のバレル内径測定装置の説明図である。
【図２】本発明の他の実施形態例を示す２軸押出機のバレル内径測定装置の説明図である。
【図３】（イ）は本発明のさらに他の実施形態例を示す２軸押出機のバレル内径測定装置の説明図で、（ロ）は（イ）の詳細な説明図である。
【図４】２軸押出機のバレルの説明図で、（イ）はその正面図、（ロ）はそのＺ矢視図である。
【符号の説明】
１１ バレルブロック
１２、１３、２５，２６ 円筒面
１４、１８、２１ ガイド
１５ 変位検出器
１６ 変位検出用接触子
１７、１９、２４ 摺動部
２２、２３ 平面
摺動部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a measuring device for measuring the inner diameter of a twin-screw extruder barrel, and more particularly to a measuring device for measuring a barrel attached to an extruder without removing it.
[0002]
[Prior art]
As shown in FIG. 4 (a), the barrel 1 of the twin screw extruder is assembled by connecting a plurality of barrel blocks 2a, 2b, 2c,... In the axial direction. However, it is necessary to replace it when the amount of wear exceeds the allowable limit by periodically measuring the amount of wear.
In the twin-screw extruder, the range A and the range B between the center line b and the center line c of the screw shafts from the position a where the barrel inner surfaces corresponding to the two screw shafts intersect with each other are hardly worn, and are worn portions. As shown in FIG. 4 (b), the center line b and the center line c of both screw shafts are the X part and the Y part outside, but the conventional measuring method is the axial direction with the barrel 1 attached to the extruder. The C dimension of the long barrel inner diameter could not be measured.
[0003]
[Problems to be solved by the invention]
Therefore, for convenience, the D and E dimensions are measured to estimate the wear amount of the X part and the Y part, or the barrel 1 is removed from the extruder and measured with a cylinder gauge or a micrometer. It was necessary to remove the barrel 1 from the extruder in order to measure this, and there was a drawback that the work was troublesome.
[0004]
An object of the present invention is to provide a barrel inner diameter measuring apparatus capable of accurately measuring the amount of wear without removing the above-described drawbacks and removing the barrel from the extruder.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a range A and a range between the center line b and the center line c of the screw shafts from the position a where the barrel inner surfaces corresponding to the two screw shafts of the twin-screw extruder intersect. A guide that slides in the axial direction and is fitted on the inner diameter surface of the barrel with almost no wear, and is mounted on the horizontal plane provided on this guide so that it contacts the inner diameter surface in the horizontal direction that connects the screw shaft centers of the barrel. A barrel inner diameter measuring device comprising a detector for detecting a displacement in the horizontal direction having a displacement detecting contact.
[0006]
The sliding surface of the guide has a cylindrical surface that is substantially the same as the outer diameter of the screw. This cylindrical surface extends from a position a where the barrel inner surfaces corresponding to the two screws intersect to a vertical surface that passes through the center of the two screw shafts. If the cylindrical surface has a circumferential angle of at least 30 degrees within this range, it is a suitable barrel inner diameter measuring device.
[0007]
Furthermore, the sliding surface of the guide is at least three points including one point on one side on the cross section perpendicular to the axis from the position where the inner surface of the barrel corresponding to the two screws intersects to the vertical surface passing through the center of the two screw shafts. It is a more suitable barrel inner diameter measuring device if it is made to contact the inner surface of the barrel.
[0008]
As a result, an accurate amount of wear can be measured without removing the barrel from the extruder.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIG.
On the barrel block 11, cylindrical surfaces 12 and 13 having substantially the same shape as the outer surface of the screw shaft are slid from the position a where the inner surfaces of the barrels corresponding to both screw shafts cross to the vertical line passing through the screw shaft centers in both directions. A guide 14 constituting the moving part 17 is mounted so as to be slidable in the axial direction. A displacement detector 15 is attached to the horizontal surface F provided on the guide 14, and the displacement detecting contact 16 is in contact with the inner diameter surface of the barrel block 11 on the horizontal central axis.
[0010]
By mounting the guide 14 having such a configuration on the inner diameter surface of the barrel 11, the displacement detector 15 is moved in the axial direction without changing the position of the barrel 11 in the perpendicular cross section, and the barrel 11 is worn in the axial direction. It became possible to measure the condition.
[0011]
The displacement detector 15 may be a micrometer or the like, but the position is detected electrically, magnetically, or optically, converted into an electrical signal, and the reference signal obtained from the reference surface processed into a normal dimension is actually used. The amount of wear is measured based on the difference in the horizontal position signal on the barrel inner surface, and the wear state profile can be displayed in the axial direction.
[0012]
In the above-described embodiment, the cylindrical surfaces 12 and 13 of the sliding portion 17 of the guide 14 have been described as being formed continuously up to the vertical plane passing through the center line of both screw shafts. As shown in FIG. 2, it is sufficient that the cylindrical surfaces 25 and 26 of the sliding portion 19 of the guide 18 are at least 30 ° in circumferential angle between the vertical surfaces passing through the center lines of both screw shafts.
[0013]
Another embodiment of the present invention will be described with reference to FIG. In this embodiment, the shape of the guide 21 is different from that of the previous embodiment. Instead of the cylindrical surfaces 12 and 13 of the sliding portion 17 at the lower portion of the guide 14, the sliding portion 24 has one screw at both ends. The planes 22 and 23 are overlapped with the intersecting lines of the barrel inner surfaces corresponding to the shafts, and the other ends are overlapped with the vertical lines passing through the center lines of both screw shafts and the intersecting lines of the barrel inner surfaces. Even when the guide 21 having such a configuration is used, the displacement detector 15 is slid in the axial direction without changing the position in the cross section perpendicular to the axis of the barrel 11 to measure the wear state of the barrel 11 in the axial direction. Is possible.
[0014]
In this embodiment, the sliding portion 24 of the guide 21 is barreled at three positions: a line intersecting the barrel inner surfaces corresponding to both screw shafts, a vertical plane passing through the center line of both screw shafts, and a line intersecting the barrel inner surfaces. Although it is in contact with the inner surface, the present invention is not limited to this, and as shown in FIG. 3 (b), if the vertical surface passing through the center lines b and c of both screw shafts is between two positions a crossing position a of the barrel inner surface, a The position and the point d on one side of the two inner surfaces of the barrel and the point e on the other side may be at any position.
[0015]
【The invention's effect】
As described above, since the present invention measures the amount of wear of the barrel as originally stated, the accurate amount of wear can be maintained with the barrel attached to the molding machine without the troublesome work of removing the barrel from the molding machine. It became possible to measure.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a barrel inner diameter measuring device of a twin-screw extruder showing an embodiment of the present invention.
FIG. 2 is an explanatory view of a barrel inner diameter measuring device of a twin screw extruder showing another embodiment of the present invention.
FIG. 3A is an explanatory view of a barrel inner diameter measuring device of a twin-screw extruder showing still another embodiment of the present invention, and FIG. 3B is a detailed explanatory view of FIG.
FIGS. 4A and 4B are explanatory views of a barrel of a twin-screw extruder, in which FIG. 4A is a front view thereof and FIG.
[Explanation of symbols]
11 Barrel block 12, 13, 25, 26 Cylindrical surface 14, 18, 21 Guide 15 Displacement detector 16 Contact for displacement detection 17, 19, 24 Sliding part 22, 23 Flat sliding part

Claims (3)

２軸押出機の２個のスクリュ軸に対応するバレル内面が交差する位置から両スクリュ軸の中心線および中心線間での範囲Ａおよび範囲のほとんど磨耗がないバレルの内径面に嵌着され、軸方向に摺動するガイドと、このガイドに設けた水平面上に取付けられ、バレルの両スクリュ軸中心を結ぶ水平方向内径面に接触するようにした変位検出用接触子を有する水平方向の変位を検出する検出器とを有して成ることを特徴とするバレル内径測定装置。From the position where the barrel inner surface corresponding to the two screw shafts of the twin screw extruder intersects the center line of both screw shafts and the range A between the center lines and the inner diameter surface of the barrel with almost no wear of the range, A horizontal displacement having a guide that slides in the axial direction and a displacement detecting contact that is mounted on a horizontal surface provided on the guide and that is in contact with the horizontal inner diameter surface connecting the screw shaft centers of the barrel. A barrel inner diameter measuring device comprising a detector for detection. 前記ガイドの摺動面はスクリュ外径とほぼ同一の円筒面を有し、この円筒面は２個のスクリュに対応するバレル内面が交差する位置から２個のスクリュ軸中心を通る鉛直面までの範囲に少なくとも円周角３０度の円筒面であることを特徴とする請求項１記載のバレル内径測定装置。The sliding surface of the guide has a cylindrical surface that is substantially the same as the outer diameter of the screw, and this cylindrical surface extends from a position where the barrel inner surfaces corresponding to the two screws intersect to a vertical surface that passes through the center of the two screw shafts. 2. The barrel inner diameter measuring device according to claim 1, wherein the barrel inner diameter measuring device is a cylindrical surface having a circumferential angle of at least 30 degrees. 前記ガイドの摺動面は２個のスクリュに対応するバレル内面が交差する位置から２個のスクリュ軸中心を通る鉛直面までの範囲に軸直角断面上で片側１点を含む少なくとも３点でバレル内面に接触することを特徴とする請求項１記載のバレル内径測定装置。The sliding surface of the guide is a barrel with at least three points including one point on one side on a cross section perpendicular to the axis from the position where the inner surface of the barrel corresponding to the two screws intersects to the vertical surface passing through the center of the two screw shafts. The barrel inner diameter measuring device according to claim 1, wherein the barrel inner diameter measuring device is in contact with an inner surface.
JP2002262922A 2002-09-09 2002-09-09 Barrel inner diameter measuring device Expired - Fee Related JP3955514B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002262922A JP3955514B2 (en) 2002-09-09 2002-09-09 Barrel inner diameter measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002262922A JP3955514B2 (en) 2002-09-09 2002-09-09 Barrel inner diameter measuring device

Publications (2)

Publication Number Publication Date
JP2004098444A JP2004098444A (en) 2004-04-02
JP3955514B2 true JP3955514B2 (en) 2007-08-08

Family

ID=32262825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002262922A Expired - Fee Related JP3955514B2 (en) 2002-09-09 2002-09-09 Barrel inner diameter measuring device

Country Status (1)

Country Link
JP (1) JP3955514B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502006008660D1 (en) * 2006-03-31 2011-02-17 Coperion Gmbh Measuring device for detecting the state of wear of screw extruder bores
KR100917306B1 (en) 2008-02-29 2009-09-11 두산엔진주식회사 inside wear amount measurement system of cylinder liner
DE502008001883D1 (en) * 2008-03-10 2011-01-05 Coperion Gmbh Measuring device and method for detecting the state of wear of screw extruder bores
JP4659063B2 (en) * 2008-05-12 2011-03-30 株式会社日本製鋼所 Cylinder inner diameter measuring device

Also Published As

Publication number Publication date
JP2004098444A (en) 2004-04-02

Similar Documents

Publication Publication Date Title
CA2682635C (en) Method for measuring the roundness of round profiles
TWI664365B (en) Ball screw with tilt detector
CN103115546B (en) A kind of engine cool inclined hole testing tool and the detection method based on this instrument
JP5847819B2 (en) Calibration device for measuring gauge of cylinder diameter and other geometric features
JP3955514B2 (en) Barrel inner diameter measuring device
CN212082238U (en) Inner diameter measuring equipment for flange production
NL1014067C2 (en) A method of measuring parameters of internal and external threads and similar grooves using wedge probes.
DE102014009229A1 (en) Injection molding machine with graphic display function
JP3682027B2 (en) Motor core inner diameter measuring apparatus and method
JP6786804B2 (en) Molding equipment and tire manufacturing method
JP7219108B2 (en) Sector mold inspection device
US5113591A (en) Device for measuring out-of-roundness
CN110789087A (en) Molding system with alignment monitoring system
KR102333594B1 (en) Straight degree measuring apparatus
JP2005233906A (en) Surface inspecting device for rotating body
US9651352B2 (en) Device and method for roundness measurement
CN113167571B (en) Method and device for inspecting injection molded parts, in particular pipette tips
CN210513082U (en) On-line detection device for thickness of cast film
CN113310439A (en) Method and system for detecting surface roughness of spherical shell part based on white light confocal sensor
JP4659063B2 (en) Cylinder inner diameter measuring device
JP2004205447A (en) Jig for measuring distances between roll and object and method for measuring distance
JP2009222570A (en) Tube measurement device
CN204988117U (en) Axle housing body length degree detection device
JP2020187034A (en) Measurement device and measurement method
JP4276714B2 (en) measuring device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050804

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20070412

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070424

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070502

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100511

Year of fee payment: 3

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100511

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees