US20060065029A1 - Peripheral length correction device, peripheral length measurement device and surface defect inspection device - Google Patents
Peripheral length correction device, peripheral length measurement device and surface defect inspection device Download PDFInfo
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- US20060065029A1 US20060065029A1 US11/234,154 US23415405A US2006065029A1 US 20060065029 A1 US20060065029 A1 US 20060065029A1 US 23415405 A US23415405 A US 23415405A US 2006065029 A1 US2006065029 A1 US 2006065029A1
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- Prior art keywords
- rollers
- peripheral length
- metal ring
- outer circumferential
- circumferential surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
Definitions
- the present invention relates to a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device of a metal ring which constitutes one of the components in a V-belt for a Continuously Variable Transmission (hereinafter denoted as “CVT belt”).
- CVT belt Continuously Variable Transmission
- CVT belt structure in which a plurality of layered thin metal rings of approximately 0.2 mm (0.0008 in.) in thickness are laminated together and unified by consecutively attached steel elements.
- FIG. 5 is an outline view diagram of a CVT belt in conventional prior art.
- a CVT belt 1 is constructed by assembling two laminated belts 2 containing a plurality of metal rings 2 a (for example, a stack of about 12 endless layers) which are supported by thin trapezoidal layered elements 3 composed of a large number of steel elements 3 a (for example, about 400 consecutive elements).
- Such a CVT belt 1 structure is manufactured in the following steps:
- a ring-shaped drum is formed by welding together the ends of a thin sheet of ultrahigh strength steel, such as maraging steel, etc.
- the drum is cut into round slices of a predetermined width and rolled to create the metal rings 2 a of a basic peripheral length.
- peripheral length denotes the ring length of a metal ring 2 a , namely the length of one revolution.
- the peripheral length of a metal ring 2 a is subtly different for each CVT belt 1 stacked layer position. In particular, the outermost periphery side is slightly longer and the innermost periphery side is slightly shorter.
- a metal ring 2 a with the proper peripheral length difference applied for every layer are sequentially laminated together to form a laminated belt 2 .
- the steel elements 3 a are consecutively attached and the CVT belt 1 is completed.
- peripheral length correction device In the process of manufacturing the CVT belt 1 , the above-mentioned three devices (a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device) are necessary. Although these devices are independent apparatus or devices which execute concurrently a portion or all of peripheral length correction, peripheral length measurement and surface defect inspection, all are common in that peripheral length correction, peripheral length measurement and surface defect inspection are performed with a metal ring 2 a wrapped around between two rollers while exerting the required tension to a metal ring 2 a as the rollers are rotated.
- FIG. 6 is a substantial part conceptual diagram of a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device.
- a pair of metallic rollers 4 , 5 with one as a driver side rotating in a constant direction and the other as a follower side are arranged individually at a predetermined separation distance L on the same level surface.
- a predetermined tension tensile force
- a metal ring 2 a is extended and that peripheral length can be corrected (longer than the basic peripheral length).
- the peripheral length of a metal ring 2 a can be calculated from that measured result. Furthermore, while observing the surface of a metal ring 2 a with a camera, etc. during circumvolution (rotation), the existence of surface defects can be inspected.
- a flaw may be scarred to the inner circumferential surface of a metal ring 2 a (contact surface with the rollers 4 , 5 ).
- One of those causes can be attributed to foreign matter (a substance or an object) adhering to the surface of the rollers 4 , 5 .
- foreign matter can be waste material (metal scraps, etc.) adhered on the belt conveyor for transporting a metal ring 2 a or processing residue from a metal ring 2 a (metal powder, etc.) floating in the air.
- each CVT belt 1 is checked by visual examination to determine whether or not there is foreign matter adhered to the surface of the rollers 4 , 5 , considerable manpower is needed to perform these manual inspections.
- the present invention provides a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device for enabling removal of foreign matter firmly adhered to the surface of rollers in view of achieving damage avoidance to the inner circumferential surface (the contact surface with the rollers) of a metal ring.
- the present invention is a peripheral length correction device with a metal ring wrapped around a pair of rollers of a rotating driver side and a follower side, wherein, while regulating a separation distance of the pair of rollers and exerting a predetermined tension to the metal ring, corrects the metal ring peripheral length by strengthening the predetermined tension, comprising a scraper, wherein each of the pair of rollers has its outer circumferential surface in contact with a blade edge of the scraper.
- the scraper blade edge has an angle of less than 90 degrees relative to a tangential line of the outer circumferential surface of the rollers.
- the scraper blade edge may have an angle of substantially less than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- the scraper blade edge may have an angle of substantially 90 degrees or more than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- the present invention is a peripheral length measurement device with a metal ring wrapped around a pair of rollers of a rotating driver side and a follower side, wherein, while regulating a separation distance of the pair of rollers and exerting a predetermined tension to the metal ring, measures the separation distance to provide a measurement value and calculates the metal ring peripheral length from the measurement value, comprising a scraper, wherein each of the pair of rollers has its outer circumferential surface in contact with a blade edge of the scraper.
- the scraper blade edge has an angle of less than 90 degrees relative to a tangential line of the outer circumferential surface of the rollers.
- the scraper blade edge may have an angle of less than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- the scraper blade edge may have an angle of substantially 90 degrees or more than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- the present invention is a surface defect inspection device with a metal ring wrapped around a pair of rollers of a rotating driver side and a follower side, wherein, while regulating a separation distance of the pair of rollers and exerting a predetermined tension to the metal ring, inspects for an existing surface defect on the metal ring, comprising a scraper, wherein each of the pair of rollers has its outer circumferential surface in contact with a blade edge of the scraper.
- the scraper blade edge has an angle of less than 90 degrees relative to a tangential line of the outer circumferential surface of the rollers.
- the scraper blade edge may have an angle of less than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- the scraper blade edge may have an angle of substantially 90 degrees or more than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- the metal ring peripheral length can be calculated from the measurement value.
- the present invention comprises a scraper having the blade edge in contact with each outer circumferential surface of the pair of rollers. Even in cases where foreign matter, such as waste material on the belt conveyor for transporting a metal ring or processing residue from a metal ring (metal powder, etc.) floating in the air, adheres to the surface of a roller, this foreign matter can be “scraped off” by the scraper blade edge which follows the rotation of the rollers. Consequently, a flaw is not scarred to the inner circumferential surface (contact surface with the rollers) of a metal ring.
- the scraper blade edge has an angle of less than 90 degrees, the removal effect of foreign matter can be increased.
- the scraper blade edge has an angle of substantially 90 degrees or more than 90 degrees, abrasion of the blade edge can be controlled.
- the removal effect of foreign matter also can be acquired in either direction for correction reversal of the rollers.
- FIG. 1 is a conceptual configuration diagram of an apparatus which encompasses three apparatus in the preferred embodiments: a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device;
- FIG. 2 is a related view of the rollers 12 , 13 and the scrapers 18 , 19 ;
- FIG. 3 is a preferred form view of the blade edges 18 a , 19 a for the scrapers 18 , 19 ;
- FIG. 4A is another preferred form view of the blade edges 18 a , 19 a for the scrapers 18 , 19 ;
- FIG. 4B is another preferred form view of the blade edges 18 a , 19 a for the scrapers 18 , 19 ;
- FIG. 5 is an outline view diagram of a CVT belt in conventional prior art.
- FIG. 6 is a substantial part conceptual diagram of a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device.
- FIG. 1 is a conceptual configuration diagram of an apparatus which encompasses three apparatus in the preferred embodiments: a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device (hereinafter collectively denoted as “the apparatus”).
- the apparatus 10 configuration comprises a fixed position driver side roller 12 which is rotary driven by a motor 11 ; a variable position follower side roller 13 in which the spacing arrangement is on the same rotational level (plane of rotation) as the roller 12 ; and a load 14 with a predetermined mass (for example, 80 kg (176 lbs.)).
- the apparatus 10 when operated as a peripheral length correction device, the apparatus 10 comprises a peripheral length correction section 15 .
- the apparatus 10 comprises a peripheral length measurement section 16 .
- the apparatus 10 comprises a defect inspection section 17 .
- the follower side roller 13 is placed in an initial position (position of the dashed and dotted line “A” in FIG. 1 ) and a metal ring 2 a is wrapped around between (bridged between) the rollers 12 , 13 .
- the required tension is exerted on that metal ring 2 a by furnishing the load 14 to the follower side roller 13 and moving the roller 13 to the lower side as seen in FIG. 1 .
- peripheral length correction, peripheral length measurement or defect inspection of the concerned metal ring 2 a is performed using the peripheral length correction section 15 , peripheral length measurement section 16 or the defect inspection section 17 .
- the peripheral length correction section 15 guides the operation to increase and decrease the tension (under or over tension) exerted on a metal ring 2 a , that is, the object for correcting the metal ring 2 a peripheral length.
- this function (peripheral length correction) is actualized by executing variable control of the load amount in the load 14 .
- the peripheral length measurement section 16 performs estimated measurement of the current metal ring 2 a peripheral length from the movement amount of the follower side roller 13 .
- this function (peripheral length measurement) is implemented by comprising a linear sensor for measuring the movement amount of the roller 13 .
- the defect inspection section 17 inspects for the existence of a surface defect on an object (metal ring 2 a ) by an optical technique, for example, image processing and laser beam reflection processing or a magnetic technique, such as the Eddy Current (EC) technique, etc.
- an optical technique for example, image processing and laser beam reflection processing or a magnetic technique, such as the Eddy Current (EC) technique, etc.
- the scrapers 18 , 19 are placed at each of the rollers 12 , 13 .
- FIG. 2 is a related view of the rollers 12 , 13 and the scrapers 18 , 19 .
- the blade edges 18 a , 19 a of the scrapers 18 , 19 are in contact with the outer circumferential surface so that the axial direction traverses each of the rollers 12 , 13 , as well as the outer circumferential upper surface of the rollers 12 , 13 are displaced relatively in the circumferential direction and follow the rotation of each of the rollers 12 , 13 .
- FIG. 3 is a preferred form view of the blade edges 18 a , 19 a for the scrapers 18 , 19 .
- the blade edges 18 a , 19 a of the scrapers 18 , 19 have an angle ⁇ 1 of less than 90 degrees in relation to a tangential line 20 of the outer circumferential surface of the rollers 12 , 13 .
- the blade edges 18 a , 19 a of this angle ⁇ 1 are used to “scrape off” foreign matter 22 adhered to the outer circumferential surface by being displaced relatively in the circumferential direction along the outer circumferential surface of the rollers 12 , 13 and follow the rotational direction according to the arrow 21 of the rollers 12 , 13 .
- the scrapers 18 , 19 as mentioned above requires: (A) the blade edges 18 a , 19 a be set to “scrape off” the foreign matter 22 adhered to the surface of the rollers 12 , 13 , and in addition to this (B) do not damage the surface of the rollers 12 , 13 by the contact against these blade edges 18 a , 19 a.
- the blade edges 18 a , 19 a need to have adequate angle ⁇ (fundamentally not rounded edges) and the strength (degree of hardness) of the blade edges 18 a , 19 a must have enough resistance (toughness) to sufficiently withstand the foreign matter 22 which is firmly adhered. Furthermore, in order to fulfill the conditions of (B), the hardness of the blade edges 18 a , 19 a needs to be a hardness level which does not create a flaw in the surface of the rollers 12 , 13 .
- the blade edges 18 a , 19 a of the scrapers 18 , 19 in the above-stated embodiment have the form of the angle ⁇ 1 (refer to FIG. 3 ) relative to a tangential line 20 of the outer circumferential surface of the rollers 12 , 13
- the present invention is not restricted to this.
- a suitable configuration can be selected from among various angles depending on the quality of material for the rollers 12 , 13 , the type of foreign matter 22 adhering to the rollers 12 , 13 , the adhesion manner, etc.
- FIGS. 4A and 4B are other preferred form views of the blade edges 18 a , 19 a for the scrapers 18 , 19 .
- FIG. 4A shows an example of the blade edges 18 a , 19 a having an angle ⁇ 2 of less than 90 degrees divided equally relative to a perpendicular line 23 of the outer circumferential surface of the rollers 12 , 13 .
- FIG. 4B shows an example of the blade edges 18 a , 19 a having an angle ⁇ 3 of substantially 90 degrees or more than 90 degrees divided equally relative to a perpendicular line 23 of the outer circumferential surface of the rollers 12 , 13 .
- the difference among both is the angle ( ⁇ 2 , ⁇ 3 ) of the blade edges 18 a , 19 a .
- the size correlation of these angles is “ ⁇ 2 ⁇ 3 .”
- the smaller angle ⁇ 2 has a demerit (disadvantage) of readily wearing out the blade edges 18 a , 19 a , whereas possesses a merit (advantage) in high removal effect of the foreign matter 22 .
- the larger angle ⁇ 3 has a demerit in low removal effect of the foreign matter 22 , whereas possesses a merit of not readily wearing out the blade edges 18 a , 19 a .
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
A peripheral length correction device with a metal ring wrapped around a pair rollers of a rotating driver side and a follower side, wherein, while regulating the separation distance of the pair of rollers and exerting a predetermined tension to the metal ring, corrects the metal ring peripheral length by strengthening the predetermined tension; a peripheral length measurement device which measures the separation distance to provide a measurement value and calculates the metal ring peripheral length from the measurement value; and a surface defect inspection device, wherein, while regulating the separation distance of the pair of rollers and exerting the predetermined tension to the metal ring, inspects for an existing surface defect on the metal ring, which comprise a scraper, wherein each of the pair of rollers has its outer circumferential surface in contact with a blade edge of the scraper.
Description
- 1. Field of the Invention
- The present invention relates to a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device of a metal ring which constitutes one of the components in a V-belt for a Continuously Variable Transmission (hereinafter denoted as “CVT belt”).
- 2. Description of the Related Art
- Conventionally, there is a known CVT belt structure in which a plurality of layered thin metal rings of approximately 0.2 mm (0.0008 in.) in thickness are laminated together and unified by consecutively attached steel elements.
-
FIG. 5 is an outline view diagram of a CVT belt in conventional prior art. As shown in this diagram, a CVT belt 1 is constructed by assembling two laminatedbelts 2 containing a plurality ofmetal rings 2 a (for example, a stack of about 12 endless layers) which are supported by thin trapezoidallayered elements 3 composed of a large number ofsteel elements 3 a (for example, about 400 consecutive elements). - Such a CVT belt 1 structure is manufactured in the following steps:
- (1) Initially, a ring-shaped drum is formed by welding together the ends of a thin sheet of ultrahigh strength steel, such as maraging steel, etc.
- (2) Next, the drum is cut into round slices of a predetermined width and rolled to create the
metal rings 2 a of a basic peripheral length. - (3) Subsequently, after performing a solution treatment, etc. to each of the above-mentioned
metal rings 2 a, the required peripheral length relative to the CVT belt 1 stacked layer position is supplied using a “peripheral length correction device.” Here, “peripheral length” denotes the ring length of ametal ring 2 a, namely the length of one revolution. The peripheral length of ametal ring 2 a is subtly different for each CVT belt 1 stacked layer position. In particular, the outermost periphery side is slightly longer and the innermost periphery side is slightly shorter. - (4) Next, while inspecting whether or not the proper peripheral length for each stacked layer position has been provided with the “peripheral length measuring device,” the existence of surface defects in the
metal rings 2 a is inspected using a “surface defect inspection device.” - (5) Lastly, after performing aging treatment, nitride treatment, etc. to increase surface hardness of the
metal rings 2 a which pass a quality control inspection, ametal ring 2 a with the proper peripheral length difference applied for every layer are sequentially laminated together to form a laminatedbelt 2. Thesteel elements 3 a are consecutively attached and the CVT belt 1 is completed. - In the process of manufacturing the CVT belt 1, the above-mentioned three devices (a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device) are necessary. Although these devices are independent apparatus or devices which execute concurrently a portion or all of peripheral length correction, peripheral length measurement and surface defect inspection, all are common in that peripheral length correction, peripheral length measurement and surface defect inspection are performed with a
metal ring 2 a wrapped around between two rollers while exerting the required tension to ametal ring 2 a as the rollers are rotated. -
FIG. 6 is a substantial part conceptual diagram of a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device. As seen in the diagram, a pair ofmetallic rollers metal ring 2 a wrapped around the pair ofrollers rollers - In such a configuration, by strengthening the above-stated tension, a
metal ring 2 a is extended and that peripheral length can be corrected (longer than the basic peripheral length). Likewise, by measuring the separation distance L while exerting the predetermined tension, the peripheral length of ametal ring 2 a can be calculated from that measured result. Furthermore, while observing the surface of ametal ring 2 a with a camera, etc. during circumvolution (rotation), the existence of surface defects can be inspected. - Apart from that, when circumvolutory movement is performed with a
metal ring 2 a wrapped around the pair ofrollers metal ring 2 a (contact surface with therollers 4, 5). One of those causes can be attributed to foreign matter (a substance or an object) adhering to the surface of therollers metal ring 2 a or processing residue from ametal ring 2 a (metal powder, etc.) floating in the air. In order to prevent such problems, even though each CVT belt 1 is checked by visual examination to determine whether or not there is foreign matter adhered to the surface of therollers - Furthermore, in order to remove foreign matter adhered to the surface of the
rollers rollers rollers rollers rollers - Therefore, the present invention provides a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device for enabling removal of foreign matter firmly adhered to the surface of rollers in view of achieving damage avoidance to the inner circumferential surface (the contact surface with the rollers) of a metal ring.
- The present invention is a peripheral length correction device with a metal ring wrapped around a pair of rollers of a rotating driver side and a follower side, wherein, while regulating a separation distance of the pair of rollers and exerting a predetermined tension to the metal ring, corrects the metal ring peripheral length by strengthening the predetermined tension, comprising a scraper, wherein each of the pair of rollers has its outer circumferential surface in contact with a blade edge of the scraper.
- As a preferred embodiment in the present invention of the peripheral length correction device, the scraper blade edge has an angle of less than 90 degrees relative to a tangential line of the outer circumferential surface of the rollers.
- Also, the scraper blade edge may have an angle of substantially less than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- Furthermore, the scraper blade edge may have an angle of substantially 90 degrees or more than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- The present invention is a peripheral length measurement device with a metal ring wrapped around a pair of rollers of a rotating driver side and a follower side, wherein, while regulating a separation distance of the pair of rollers and exerting a predetermined tension to the metal ring, measures the separation distance to provide a measurement value and calculates the metal ring peripheral length from the measurement value, comprising a scraper, wherein each of the pair of rollers has its outer circumferential surface in contact with a blade edge of the scraper.
- As a preferred embodiment in the present invention of the peripheral length measurement device, the scraper blade edge has an angle of less than 90 degrees relative to a tangential line of the outer circumferential surface of the rollers.
- Also, the scraper blade edge may have an angle of less than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- Furthermore, the scraper blade edge may have an angle of substantially 90 degrees or more than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- The present invention is a surface defect inspection device with a metal ring wrapped around a pair of rollers of a rotating driver side and a follower side, wherein, while regulating a separation distance of the pair of rollers and exerting a predetermined tension to the metal ring, inspects for an existing surface defect on the metal ring, comprising a scraper, wherein each of the pair of rollers has its outer circumferential surface in contact with a blade edge of the scraper.
- As a preferred embodiment in the present invention of the surface defect inspection device, the scraper blade edge has an angle of less than 90 degrees relative to a tangential line of the outer circumferential surface of the rollers.
- Also, the scraper blade edge may have an angle of less than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- Furthermore, the scraper blade edge may have an angle of substantially 90 degrees or more than 90 degrees divided equally relative to a perpendicular line of the outer circumferential surface of the rollers.
- According to the present invention with a metal ring wrapped around a pair of rollers for a rotating driver side and a follower side, while regulating the separation distance of the pair of rollers and exerting a predetermined tension, that metal ring peripheral length can be corrected by strengthening the tension.
- Likewise, with a metal ring wrapped around a pair of rollers for a rotating driver side and a follower side, while regulating the separation distance of the pair of rollers and exerting a predetermined tension to that metal ring for measuring the separation distance to provide a measurement value, the metal ring peripheral length can be calculated from the measurement value.
- Likewise, with a metal ring wrapped around a pair of rollers for a rotating driver side and a follower side, while regulating the separation distance of the pair of rollers and exerting a predetermined tension to that metal ring, the existence of a surface defect on the metal ring can be inspected.
- Furthermore, the present invention comprises a scraper having the blade edge in contact with each outer circumferential surface of the pair of rollers. Even in cases where foreign matter, such as waste material on the belt conveyor for transporting a metal ring or processing residue from a metal ring (metal powder, etc.) floating in the air, adheres to the surface of a roller, this foreign matter can be “scraped off” by the scraper blade edge which follows the rotation of the rollers. Consequently, a flaw is not scarred to the inner circumferential surface (contact surface with the rollers) of a metal ring.
- Also, when the scraper blade edge has an angle of less than 90 degrees, the removal effect of foreign matter can be increased. On the other hand, when the scraper blade edge has an angle of substantially 90 degrees or more than 90 degrees, abrasion of the blade edge can be controlled.
- Besides, when the scraper blade edge has an angle “divided equally” relative to a perpendicular line of the outer circumferential surface of the rollers, the removal effect of foreign matter also can be acquired in either direction for correction reversal of the rollers.
- The above and further objects and novel features of the present invention will more fully appear from the following detailed description when the same is read in conjunction with the accompanying drawings. It is to be expressly understood, however, that the drawings are for the purpose of illustration only and are not intended as a definition of the limits of the invention.
-
FIG. 1 is a conceptual configuration diagram of an apparatus which encompasses three apparatus in the preferred embodiments: a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device; -
FIG. 2 is a related view of therollers scrapers -
FIG. 3 is a preferred form view of theblade edges scrapers -
FIG. 4A is another preferred form view of theblade edges scrapers -
FIG. 4B is another preferred form view of the blade edges 18 a, 19 a for thescrapers -
FIG. 5 is an outline view diagram of a CVT belt in conventional prior art; and -
FIG. 6 is a substantial part conceptual diagram of a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device. - Hereinafter, the preferred embodiments of the present invention with a surface defect inspection device as an example will be explained with reference to the drawings.
- Additionally, illustration of specific or example numerical values for various details in the following explanation or character strings and other symbols are merely references for a clear understanding of the concept of the present invention. Accordingly, the concept of the present invention should not be limited explicitly to this terminology entirely or in part.
- Furthermore, explanation has been omitted which describes details of well-known methods, well-known procedures, well-known architecture, well-known circuit configurations, etc. (hereinafter denoted as “common knowledge”) for the purpose of a concise explanation, but does not intentionally exclude this common knowledge entirely or in part. Therefore, relevant common knowledge already known by persons skilled in the art at the time of filing the present invention is naturally included in the following description.
-
FIG. 1 is a conceptual configuration diagram of an apparatus which encompasses three apparatus in the preferred embodiments: a peripheral length correction device, a peripheral length measurement device and a surface defect inspection device (hereinafter collectively denoted as “the apparatus”). - The
apparatus 10 configuration comprises a fixed positiondriver side roller 12 which is rotary driven by amotor 11; a variable positionfollower side roller 13 in which the spacing arrangement is on the same rotational level (plane of rotation) as theroller 12; and aload 14 with a predetermined mass (for example, 80 kg (176 lbs.)). Additionally, when operated as a peripheral length correction device, theapparatus 10 comprises a peripherallength correction section 15. Also, when operated as a peripheral length measurement device, theapparatus 10 comprises a peripherallength measurement section 16. Further, when operated as a surface defect inspection device, theapparatus 10 comprises adefect inspection section 17. - In such a configuration, initially, the
follower side roller 13 is placed in an initial position (position of the dashed and dotted line “A” inFIG. 1 ) and ametal ring 2 a is wrapped around between (bridged between) therollers metal ring 2 a by furnishing theload 14 to thefollower side roller 13 and moving theroller 13 to the lower side as seen inFIG. 1 . - Subsequently, while driving the
motor 11 in that state for executing circumferential rotation of ametal ring 2 a in a constant direction (the direction of arrow “B”), peripheral length correction, peripheral length measurement or defect inspection of theconcerned metal ring 2 a is performed using the peripherallength correction section 15, peripherallength measurement section 16 or thedefect inspection section 17. - Here, the peripheral
length correction section 15 guides the operation to increase and decrease the tension (under or over tension) exerted on ametal ring 2 a, that is, the object for correcting themetal ring 2 a peripheral length. For example, this function (peripheral length correction) is actualized by executing variable control of the load amount in theload 14. Also, the peripherallength measurement section 16 performs estimated measurement of thecurrent metal ring 2 a peripheral length from the movement amount of thefollower side roller 13. For example, this function (peripheral length measurement) is implemented by comprising a linear sensor for measuring the movement amount of theroller 13. Additionally, thedefect inspection section 17 inspects for the existence of a surface defect on an object (metal ring 2 a) by an optical technique, for example, image processing and laser beam reflection processing or a magnetic technique, such as the Eddy Current (EC) technique, etc. - Furthermore, as a distinctive constituent element of the embodiment, the
scrapers rollers -
FIG. 2 is a related view of therollers scrapers scrapers rollers rollers rollers -
FIG. 3 is a preferred form view of the blade edges 18 a, 19 a for thescrapers scrapers tangential line 20 of the outer circumferential surface of therollers - Also, the blade edges 18 a, 19 a of this angle α 1 are used to “scrape off”
foreign matter 22 adhered to the outer circumferential surface by being displaced relatively in the circumferential direction along the outer circumferential surface of therollers arrow 21 of therollers - Therefore, according to this embodiment, in cases where a
foreign matter 22, such as waste material, etc. on the belt conveyor for transporting ametal ring 2 a or processing residue from ametal ring 2 a (metal powder, etc.) floating in the air adheres to the surface of therollers foreign matter 22 can be efficiently “scraped off” by the blade edges 18 a, 19 a of thescrapers rollers rollers 12, 13) of ametal ring 2 a. - Here, the
scrapers foreign matter 22 adhered to the surface of therollers rollers - In order to fulfill the conditions of (A), the blade edges 18 a, 19 a need to have adequate angle α (fundamentally not rounded edges) and the strength (degree of hardness) of the blade edges 18 a, 19 a must have enough resistance (toughness) to sufficiently withstand the
foreign matter 22 which is firmly adhered. Furthermore, in order to fulfill the conditions of (B), the hardness of the blade edges 18 a, 19 a needs to be a hardness level which does not create a flaw in the surface of therollers - Moreover, although the blade edges 18 a, 19 a of the
scrapers FIG. 3 ) relative to atangential line 20 of the outer circumferential surface of therollers rollers foreign matter 22 adhering to therollers -
FIGS. 4A and 4B are other preferred form views of the blade edges 18 a, 19 a for thescrapers FIG. 4A shows an example of the blade edges 18 a, 19 a having an angle α2 of less than 90 degrees divided equally relative to aperpendicular line 23 of the outer circumferential surface of therollers FIG. 4B shows an example of the blade edges 18 a, 19 a having an angle α3 of substantially 90 degrees or more than 90 degrees divided equally relative to aperpendicular line 23 of the outer circumferential surface of therollers - The difference among both is the angle (α2, α3) of the blade edges 18 a, 19 a. The size correlation of these angles is “α2<α3.” The smaller angle α2 has a demerit (disadvantage) of readily wearing out the blade edges 18 a, 19 a, whereas possesses a merit (advantage) in high removal effect of the
foreign matter 22. On the other hand, the larger angle α3 has a demerit in low removal effect of theforeign matter 22, whereas possesses a merit of not readily wearing out the blade edges 18 a, 19 a. In reality, it is best to consider the merit preferences in view of the quality of material for therollers scrapers foreign matter 22 to be removed, etc. and select a suitable angle. - Furthermore, in the example of these diagrams, because the blade edges 18 a, 19 a have an angle divided equally relative to a
perpendicular line 23 of the outer circumferential surface of therollers foreign matter 22 is not influenced by the rotational direction of therollers rollers - While the present invention has been described with reference to the preferred embodiments, it is intended that the invention be not limited by any of the details of the description therein but includes all the embodiments which fall within the scope of the appended claims.
Claims (12)
1. A peripheral length correction device with a metal ring wrapped around a pair of rollers of a rotating driver side and a follower side, wherein, while regulating a separation distance of the pair of rollers and exerting a predetermined tension to the metal ring, corrects the metal ring peripheral length by strengthening the predetermined tension, comprising:
a scraper, wherein each of the pair of rollers has its outer circumferential surface in contact with a blade edge of said scraper.
2. A peripheral length measurement device with a metal ring wrapped around a pair of rollers of a rotating driver side and a follower side, wherein, while regulating a separation distance of the pair of rollers and exerting a predetermined tension to the metal ring, measures the separation distance to provide a measurement value and calculates the metal ring peripheral length from the measurement value, comprising:
a scraper, wherein each of the pair of rollers has its outer circumferential surface in contact with a blade edge of said scraper.
3. A surface defect inspection device with a metal ring wrapped around a pair of rollers of a rotating driver side and a follower side, wherein, while regulating a separation distance of the pair of rollers and exerting a predetermined tension to the metal ring, inspects for an existing surface defect on the metal ring, comprising:
a scraper, wherein each of the pair of rollers has its outer circumferential surface in contact with a blade edge of said scraper.
4. The peripheral length correction device according to claim 1 , wherein said scraper blade edge has an angle of less than 90 degrees relative to a tangential line of said outer circumferential surface of the rollers.
5. The peripheral length measurement device according to claim 2 , wherein said scraper blade edge has an angle of less than 90 degrees relative to a tangential line of said outer circumferential surface of the rollers.
6. The surface defect inspection device according to claim 3 , wherein said scraper blade edge has an angle of less than 90 degrees relative to a tangential line of said outer circumferential surface of the rollers.
7. The peripheral length correction device according to claim 1 , wherein said scraper blade edge has an angle of less than 90 degrees divided equally relative to a perpendicular line of said outer circumferential surface of the rollers.
8. The peripheral length measurement device according to claim 2 , wherein said scraper blade edge has an angle of less than 90 degrees divided equally relative to a perpendicular line of said outer circumferential surface of the rollers.
9. The surface defect inspection device according to claim 3 , wherein said scraper blade edge has an angle of less than 90 degrees divided equally relative to a perpendicular line of said outer circumferential surface of the rollers.
10. The peripheral length correction device according to claim 1 , wherein said scraper blade edge has an angle of substantially 90 degrees or more than 90 degrees divided equally relative to a perpendicular line of said outer circumferential surface of the rollers.
11. The peripheral length measurement device according to claim 2 , wherein said scraper blade edge has an angle of substantially 90 degrees or more than 90 degrees divided equally relative to a perpendicular line of said outer circumferential surface of the rollers.
12. The surface defect inspection device according to claim 3 , wherein said scraper blade edge has an angle of substantially 90 degrees or more than 90 degrees divided equally relative to a perpendicular line of said outer circumferential surface of the rollers.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-286945 | 2004-09-30 | ||
JP2004286945A JP2006095582A (en) | 2004-09-30 | 2004-09-30 | Peripheral length correcting device, peripheral length measuring device, and surface defect inspecting device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060065029A1 true US20060065029A1 (en) | 2006-03-30 |
Family
ID=36097498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/234,154 Abandoned US20060065029A1 (en) | 2004-09-30 | 2005-09-26 | Peripheral length correction device, peripheral length measurement device and surface defect inspection device |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060065029A1 (en) |
JP (1) | JP2006095582A (en) |
DE (1) | DE102005038261A1 (en) |
NL (1) | NL1030071C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7176457B2 (en) * | 2019-03-29 | 2022-11-22 | 株式会社アイシン | ring inspection device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1387896A (en) * | 1918-11-09 | 1921-08-16 | Arthur J Maskrey | Roll-scraper |
US1394102A (en) * | 1921-01-27 | 1921-10-18 | Mccauley Terence | Roll-scraper |
US2317495A (en) * | 1941-04-10 | 1943-04-27 | Linde Air Prod Co | Desurfacing apparatus and process |
US2853245A (en) * | 1955-04-27 | 1958-09-23 | Jacobson Abner | Mill roll scraper |
US5640868A (en) * | 1995-12-28 | 1997-06-24 | Larex A.G. | Apparatus and method for work hardening an endless belt for use in a belt caster |
-
2004
- 2004-09-30 JP JP2004286945A patent/JP2006095582A/en not_active Withdrawn
-
2005
- 2005-08-12 DE DE102005038261A patent/DE102005038261A1/en not_active Withdrawn
- 2005-09-26 US US11/234,154 patent/US20060065029A1/en not_active Abandoned
- 2005-09-30 NL NL1030071A patent/NL1030071C2/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1387896A (en) * | 1918-11-09 | 1921-08-16 | Arthur J Maskrey | Roll-scraper |
US1394102A (en) * | 1921-01-27 | 1921-10-18 | Mccauley Terence | Roll-scraper |
US2317495A (en) * | 1941-04-10 | 1943-04-27 | Linde Air Prod Co | Desurfacing apparatus and process |
US2853245A (en) * | 1955-04-27 | 1958-09-23 | Jacobson Abner | Mill roll scraper |
US5640868A (en) * | 1995-12-28 | 1997-06-24 | Larex A.G. | Apparatus and method for work hardening an endless belt for use in a belt caster |
Also Published As
Publication number | Publication date |
---|---|
DE102005038261A1 (en) | 2006-05-18 |
JP2006095582A (en) | 2006-04-13 |
NL1030071C2 (en) | 2006-04-03 |
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