JP5273354B2 - Width direction end position measuring method and apparatus for belt-like member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and its device for measuring width direction end position of a belt-like member which can measure correctly the width direction position, with width dimension or the like. <P>SOLUTION: The device for measuring width direction end position of the belt-like member detects the contour data of thickness direction at the width direction end part of each belt-like member of 2B to 4B, sets the measuring position (position of alternate long and short dash line in Fig.4) of the belt-like member thickness direction so as to measure the width direction end position of the belt-like member within the contour data based on the contour data, measures certainly the width direction end position of the belt-like member for every contour data, by measuring the width direction end position of the belt-like member (position of the contour line) of the set measuring position for every contour data, and measures certainly the width direction end position of the belt-like member over the length direction of the belt-like member as a whole, by detecting continuously the contour data for the length direction of the belt-like member. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention provides, for example, a belt-like member for measuring the width direction end position of a belt-like member such as a belt member wound around a forming drum or a belt-like member placed on a conveyor in a manufacturing process of an automobile tire. The present invention relates to a width direction end position measuring method and apparatus.

In general, this type of measuring device is provided with a pair of widthwise optical displacement meters that are provided so as to be movable in the width direction with respect to the belt-like member on the conveyor and that can respectively detect the widthwise ends of the belt-like member. When the member is transported to a predetermined position on the conveyor, each optical displacement meter is moved inward in the width direction of the belt-like member, and both ends of the belt-like member in the width direction are detected by each optical displacement meter. A device in which the position in the width direction and the width dimension of the belt-like member are calculated from the position of each optical displacement meter at the time is known (for example, see Patent Document 1).
JP 2001-201335 A

  By the way, in the said measuring apparatus, although the position of the width direction both ends of the strip | belt-shaped member is detected in one place of the strip | belt-shaped member's length direction, the width dimension etc. of a strip | belt-shaped member are calculated based on the detection result. Is formed from unvulcanized rubber such as a belt member of an automobile tire, for example, the end in the width direction of the belt-shaped member is likely to meander or deform in the width direction. Even if only a part is measured, there is a problem that the position in the width direction and the width dimension of the belt-like member cannot be measured accurately.

  On the other hand, as shown in FIG. 9, a displacement meter 100 having an optical axis perpendicular to the widthwise end of the strip member W is provided, and the displacement drum 100 rotates the strip drum W while rotating the forming drum 110. Although it is conceivable to continuously detect the position of the end portion, when the band-shaped member W is formed of, for example, unvulcanized rubber and is formed thin, the widthwise end of the band-shaped member W is in the thickness direction. Therefore, the displacement meter 100 cannot reliably detect the end portion in the width direction of the belt-like member W, and the position and width dimension of the belt-like member W cannot be accurately measured. There was a point.

  The present invention has been made in view of the above-described problems, and the object of the present invention is to measure the width direction end position of the band-shaped member that can accurately measure the width direction position, width dimension, etc. of the band-shaped member. And providing such a device.

In order to achieve the above object, the present invention provides a detection method capable of detecting the contour of an object in a width direction end position measuring method of a band shape member that measures the width direction end position of a band shape member wound around a forming drum. Using the apparatus, a detection step of continuously detecting the data of the thickness direction contour at the width direction end of the strip member wound around the forming drum in the length direction of the strip member, and the detection detected by the detection step Based on the contour data, the position of the strip member in the thickness direction for measuring the position of the strip member in the width direction in the contour data is defined as the width direction end portion where the contour data greatly changes in the thickness direction downward. strip part in the recognition and the measurement position setting step of setting the measurement position setting means at a position displaced downward from the highest position of the widthwise end portion by a predetermined value, set measurement position by the measurement position setting step The widthwise end portion position of and a measurement step of measuring for each contour data.

Further, the present invention provides a belt-shaped member on a conveyor using a detection device capable of detecting the contour of an object in a width-direction edge position measuring method of the belt-shaped member for measuring the widthwise edge position of the belt-shaped member on the conveyor. The width of the belt-shaped member in the contour data is detected based on the detection process for continuously detecting the data of the contour in the thickness direction at the end of the width direction in the length direction of the belt-shaped member, and the contour data detected by the detection process. The position in the thickness direction of the band-shaped member for measuring the position of the end in the direction is determined from the highest position of the end in the width direction by recognizing the point where the contour data changes greatly in the lower direction of the thickness as the end in the width direction. to the measurement position setting step of setting the measurement position setting means at a position displaced downward by a value, the widthwise end portion position of the belt-shaped member in the set measurement position by the measurement position setting step measured every contour data And a measurement process.

The present invention also relates to a width direction end position measuring device for a band-shaped member that measures a width-direction end position of a band-shaped member wound around a forming drum, and a width-direction end of the band-shaped member wound around the forming drum. And a width direction end portion of the band-shaped member in the contour data based on the contour data detected by the detection device, and a detection device capable of continuously detecting the thickness direction contour data in the length direction of the band-shaped member The position in the thickness direction of the band-shaped member for measuring the position is recognized as the end in the width direction at the point where the contour data changes greatly in the thickness direction, and is a predetermined value from the maximum position of the end in the width direction. Measurement position setting means for setting the position displaced downward, and measurement means for measuring the width direction end position of the belt-like member at the measurement position set by the measurement position setting means for each contour data.

Further, the present invention provides a strip-shaped member width direction end position measuring apparatus for measuring a width-direction end portion position of a strip-shaped member on a conveyor, in a thickness direction contour at a width-direction end portion of the strip-shaped member on the conveyor. A detecting device capable of continuously detecting data in the length direction of the band-shaped member, and a band-shaped member for measuring the width direction end position of the band-shaped member in the contour data based on the contour data detected by the detecting device The position in the thickness direction is set to a position where the point where the contour data changes greatly in the thickness direction downward is recognized as the end in the width direction and is displaced downward by a predetermined value from the highest position in the width direction end. Measuring position setting means, and measuring means for measuring, for each contour data, the width direction end portion position of the belt-like member at the measurement position set by the measurement position setting means.

Thereby, the strip-shaped member for continuously detecting the contour data in the thickness direction at the end portion in the width direction of the strip-shaped member in the length direction of the strip-shaped member and measuring the width-direction end portion position of the strip-shaped member in the contour data Based on the contour data for the position in the thickness direction, the point where the contour data changes greatly downward in the thickness direction is recognized as the end in the width direction and is displaced downward by a predetermined value from the highest position in the end in the width direction. The position in the width direction of the band-shaped member at the set measurement position is measured for each contour data. For example, in the contour data, the position displaced downward by several mm from the upper surface of the band-shaped member. Is the measurement position, even if the widthwise end of the band-shaped member meanders or is deformed in the thickness direction or the width direction of the band-shaped member, the widthwise end position of the band-shaped member is reliably measured for each contour data. To do It can be. In addition, since the contour data is continuously detected in the length direction of the band-shaped member, the width direction end position of the band-shaped member can be reliably measured over the entire length direction of the band-shaped member.

  According to the present invention, since the position in the width direction end portion of the band-shaped member can be reliably measured over the entire length of the band-shaped member, the position in the width direction, the width dimension, etc. of the band-shaped member are accurately measured. This is extremely advantageous.

  FIG. 1 to FIG. 8 show an embodiment of the present invention. FIG. 1 is a plan view of a width direction end position measuring device of a strip member, and FIG. 2 is a side view of the width direction end position measuring device of the strip member. 3 is a block diagram of the width direction end position measuring device of the belt-like member, FIG. 4 is an example of contour data, FIG. 5 is a flowchart showing the operation of the control device, FIG. 6 is an example of a graph summarizing the measurement results, FIG. 7 is an example of display by a display device, and FIG. 8 is an example of a data table.

  The width direction end position measuring device of the band-shaped member includes a pair of detecting devices 10 provided so as to face the outer peripheral surface of the forming drum 1 and a rotating direction position detecting device that detects the position of the forming drum 1 in the rotating direction. As well as a known rotary encoder 20 and counter 21, and an origin detection device 30 that detects a position of 0 ° in the rotation direction of the forming drum 1.

  The forming drum 1 has a well-known configuration that can be expanded and contracted, and a belt member as a belt-like member is wound around to form an annular belt member. In FIG. 1, a first belt member, a second belt member 2B, a third belt member 3B, and a fourth belt member 4B are wound around the forming drum 1. Further, since the first belt member is wound around the inside of the second belt member 2B and has a smaller width dimension than the second belt member 2B, it is not shown in FIG. On the other hand, the third belt member 3B is wound around the outside of the second belt member 2B, and has a width dimension smaller than that of the second belt member 2B. Moreover, the 4th belt member 4B is wound around the outer side of the 3rd belt member 3B, and a width dimension is smaller than the 3rd belt member 3B.

  Each detection device 10 is composed of a well-known two-dimensional laser displacement meter capable of detecting a distance from an object within a linear detection range DA. A fixing jig 11 is attached to the back surface of each detection device 10, and each fixing jig 11 is attached to a columnar shaft 12 extending in the width direction of the belt member wound around the forming drum 1. . Further, the fixing jig 11 is provided with a tightening bolt 11a. When the tightening bolt 11a is loosened, the fixing jig 11 can move in the axial direction and the circumferential direction of the shaft 12, and when the tightening bolt 11a is tightened, A fixing jig 11 is fixed to the shaft 12. That is, each detection device 10 is configured to be arranged at an arbitrary position in the width direction of the second to fourth belt members 2B to 4B wound around the forming drum 1, and the angle of the optical axis of each detection device 10 is set to the shaft 12. It is configured to be arbitrarily adjustable in the circumferential direction. In the present embodiment, each detection device 10 is positioned so that both end portions in the width direction of the belt members 2B to 4B wound around the forming drum 1 are disposed within the detection range DA of each detection device 10, respectively. Yes. For this reason, each detection apparatus 10 can detect the outline of the thickness direction of the width direction both ends of the 2nd-4th belt members 2B-4B wound around the forming drum 1, respectively.

  A flame 13 is provided between each detection device 10 and the forming drum 1, and the frame 13 is formed so as to extend in the width direction of the belt member wound around the forming drum 1. Further, even when the belt member wound around the forming drum 1 is peeled off by centrifugal force, the frame 13 prevents the contact between the belt member and each detection device 10.

  The rotary encoder 20 is configured to output a pulse wave as the molding drum 1 rotates. The counter 21 is connected to the rotary encoder 20, and the counter 21 counts the pulse wave of the rotary encoder 20 so that the rotational direction position of the forming drum 1 is detected.

  The origin detection device 30 includes a known proximity switch or the like, and detects, for example, a concave portion provided at a position of the molding drum 1 in the rotation direction 0 °.

  Each detection device 10, the counter 21, and the origin detection device 30 are connected to a control device 40 including a known computer. The control device 40 is connected to a storage device 41 composed of a known hard disk, a display device 42 having a known liquid crystal screen, and an input device 43 composed of a known keyboard. On the other hand, the forming drum 1 has a motor 1a for rotational driving and a forming drum control device 1b for controlling the motor 1a. The forming drum control device 1b is connected to the control device 40. The forming drum control device 1b controls the motor 1a when forming the annular belt member.

  In the width direction end position measuring apparatus of the belt-shaped member configured as described above, the first belt member, the second belt member 2B, the third belt member 3B, and the fourth belt member 4B are added to the molding drum 1 in the expanded state. Is wound and the annular belt member is molded, the contours of both ends in the width direction of the second to fourth belt members 2B to 4B are detected by the respective detection devices 10 while the molding drum 1 is rotated. The operation of the control device 40 in this case will be described with reference to the flowchart of FIG.

  First, when an end signal of the annular belt member is received from the molding drum control device 1b (S1), the motor 1a is rotated by the molding drum control device 1b (S2). Thereby, the forming drum 1 starts to rotate at a predetermined speed.

  Subsequently, when the concave portion provided at the position of 0 ° in the rotation direction of the forming drum 1 is detected by the origin detection device 30 (S3), the width of the second to fourth belt members 2B to 4B is detected by each detection device 10. Contour data in the belt member thickness direction at both ends in the direction is continuously detected until the forming drum 1 rotates 360 ° (S4), and each contour data is detected by the rotary encoder 20 and the counter 21 and the rotation of the forming drum 1 is detected. The data is stored in the storage device 41 so as to correspond to the direction position data (S5).

  Here, “continuous” means that, for example, the contour data is detected when the forming drum 1 is in the rotational direction position of 0 °, 3 °, 6 °,... 360 °. Note that even when contour data is detected every predetermined time, it is continuous, and when contour data is detected at three or more positions in the rotational direction by other methods, it is also continuous. Moreover, the example of the contour data of the belt member thickness direction in the width direction edge part of the 2nd-4th belt members 2B-4B detected by each detection apparatus 10 is shown in FIG. FIG. 4 is an example of contour data detected by the detection device 10 arranged on one side in the width direction of each belt member 2B, 3B, 4B.

  Further, when each detection device 10 is positioned by the fixing jig 11 and the shaft 12, the calibration of each detection device 10 is performed. Specifically, after each detection device 10 is positioned by the fixing jig 11 and the shaft 12, a standard device having a predetermined length extending from the center in the width direction of the molding drum 1 to the outer side in the width direction is attached to the outer peripheral surface of the molding drum 1. At the same time, the end of the standard device is detected by the detection device 10, and the end position (position in the X direction in FIG. 4) of the standard device is set to the value of the predetermined length on the contour data. As a result, the distance from the center in the width direction of the forming drum 1 can be measured on the contour data of each detection device 10.

  When the detection in step S4 ends (S6), the molding drum control device 1b stops the rotation of the motor 1a (S7). Further, for each detected contour data, a measurement position in the belt member thickness direction (Z direction in FIG. 4) for measuring the width direction end position of the second belt member 2B, the width direction of the third belt member 3B. A measurement position in the belt member thickness direction for measuring the end position and a measurement position in the belt member thickness direction for measuring the width direction end position of the fourth belt member 4B are respectively set (S8).

  Specifically, for example, when setting the measurement position of the third belt member 3B, first, in the contour data as shown in FIG. 4, the contour line is traced from the center side in the width direction of the forming drum 1 (left side in FIG. 4). As the line moves, three points where the outline changes greatly downward in the Z direction are detected, and the three points are recognized as the end portions in the width direction of the second to fourth belt members 2B to 4B, respectively. Next, as shown by a one-dot chain line in FIG. 4, a position displaced by 2 mm, for example, by 2 mm from the highest position H3 in the Z direction of the third belt member 3B is set as a measurement position of the third belt member 3B. Similarly, the measurement position of the second belt member 2B is a position displaced from the highest position of the second belt member 2B in the Z direction by, for example, 3 mm downward, and the measurement position of the fourth belt member 4B is the fourth belt member. For example, a position displaced by 1 mm downward from the highest position in the Z direction of 4B in the Z direction.

  Subsequently, the X direction position of the contour line at the measurement position set for each of the second to fourth belt members 2B to 4B (for example, the X direction position of the measurement point in FIG. 4 in the case of the third belt member 3B) is contour data. Measurement is performed every time (S9). The measurement result of the X direction position of the contour line becomes the measurement result of the width direction end position of the second to fourth belt members 2B to 4B.

  Next, the measurement results are summarized for each detection device 10 and for each of the second to fourth belt members 2B to 4B (S10). For example, as shown in FIG. 6, a graph in which the rotation direction position of the forming drum 1 is set on the horizontal axis and the measurement result of the width direction end portion position of the belt member is set on the vertical axis is shown for each detection device 10 and second to fourth. Created for each of the belt members 2B to 4B. It is also possible to display this graph on the display device 42. Here, in FIG. 6, a graph 2BL is a graph showing a measurement result on the left side of the second belt member 2B, and a graph 2BR is a graph showing a measurement result on the right side of the second belt member 2B. The same applies to the graphs 3BL, 3BR, 4BL, and 4BR. Further, the measurement result of the end position in the width direction of the belt member can be smoothed by a moving average and graphed, or can be graphed by performing processing using a low-pass filter or a high-pass filter. Further, an upper limit standard value and a lower limit standard value (broken line shown in the graph of FIG. 6) of the width direction end portion position of the belt member are set for each graph. Further, the maximum value MAX, the minimum value MIN, and the difference PP between the maximum value MAX and the minimum value MIN are calculated for each graph.

  Subsequently, for each graph, it is determined whether or not the measurement result of the width direction end portion position of the belt member is within the standard value. When the measurement results of all the graphs are within the standard value (S11), The display device 42 displays that the width direction end positions of the second to fourth belt members 2B to 4B are within the standard value (S12), and the measurement result and the determination result are stored in the storage device 41 (S13). On the other hand, when the measurement result of any one of the graphs exceeds the standard value (S11), the graph indicating that the measurement result is out of the standard value is displayed on the display device 42 (S14), and any of the belt members is displayed. Which position exceeds the standard value is displayed on the display device 42 (S15), and the measurement result and the determination result are stored in the storage device 41 (S16).

  Here, as shown in FIG. 7, the display device 42 is configured to display the name of each graph and the determination result corresponding to each graph name at the lower right of the screen, and the determination of each graph is easy and reliable. To be able to grasp. That is, in the case of step S12, all the determination results of each graph are OK, and in the case of step S14, the determination result of the graph whose measurement result is out of the standard value is NG.

  Further, as shown in FIG. 7, the gradation image created by arranging the respective contour data in the rotation direction of the molding drum and binarizing is displayed on the center side of the screen of the display device 42. The states of the second to fourth belt members 2B to 4B can be visually recognized. Further, the display line EL is displayed in a range where the measurement result exceeds the standard value, and the range where the standard value is exceeded can be easily and reliably grasped. The display line EL is color-coded according to the type of the belt member. For example, when displaying a range exceeding the standard value of the second belt member 2B, the red display line EL is used, and the standard value of the third belt member 3B is used. The blue display line EL is used when displaying a range exceeding the upper limit, and the yellow display line EL is used when displaying a range exceeding the standard value of the fourth belt member 4B. .

  Further, in the case where the measurement result and the determination result are stored in the storage device 41 in steps S13 and S16, for example, it can be stored as a data table shown in FIG.

  As described above, according to the present embodiment, the contour data in the thickness direction at the end portions in the width direction of the belt members 2B to 4B is detected, and the end positions in the width direction of the belt members 2B to 4B are detected in the contour data. The belt member thickness direction position for measurement is set based on the contour data, and the width direction end position of each belt member 2B to 4B at the set measurement position is measured for each contour data. The position in the width direction of the members 2B to 4B can be reliably measured for each contour data. Further, since the contour data is continuously detected in the length direction of each belt member 2B to 4B, the end in the width direction of each belt member 2B to 4B over the entire length direction of each belt member 2B to 4B. The position can be measured reliably. That is, it is extremely advantageous in accurately measuring the width direction end positions and width dimensions of the belt members 2B to 4B.

  Moreover, since it comprised so that the measurement result of the width direction edge part position of each belt member 2B-4B might be graphed corresponding to the rotation direction position of the forming drum 1, for example, an upper and lower limit standard value is set to the graph. Therefore, easy and reliable determination can be performed. Furthermore, displaying the graph by the display device 42 makes it possible to grasp the measurement result in a short time, which is extremely advantageous for improving productivity.

  In addition, since the gradation images created by arranging the contour data in the rotation direction of the forming drum 1 and binarizing are displayed, the states of the belt members 2B to 4B can be visually recognized. Can do. That is, by viewing the gradation image together with the determination result, it is possible to more easily grasp the state of each belt member 2B to 4B, which is extremely advantageous in improving productivity.

  Further, since it is determined whether or not the measurement results of the width direction end positions of the belt members 2B to 4B are within the standard value, it is possible to omit an artificial determination by an operator, and to improve productivity. The determination accuracy can be improved.

  In addition, since the measurement result and the determination result of the width direction end portion position of the belt-shaped member are stored, it is possible to perform quality control reliably based on the stored data, and the quality control based on the stored data. It is also possible to improve.

  In the present embodiment, in the forming drum 1 around which a plurality of belt members are wound, the one that measures the width direction end positions of the belt members 2B to 4B is shown, but a single belt member is wound. In the formed drum, it is possible to measure the position in the width direction end of the belt member in the same manner as described above, and in the forming drum on which another belt-like member such as a carcass member or a side member is wound, It is also possible to measure the end position in the width direction in the same manner as described above.

  Moreover, in this embodiment, what detected the outline of the width direction edge part of each belt member 2B-4B with the two-dimensional laser displacement meter was shown. On the other hand, instead of the two-dimensional laser displacement meter, a known slit light irradiation device and a known imaging device that images the irradiation position of the slit light from a direction that makes a predetermined angle with the slit light, and each belt by an optical cutting method. It is also possible to detect the contours of the end portions in the width direction of the members 2B to 4B, and even in this case, it is possible to achieve the same effect as described above.

  In the present embodiment, after all the belt members are wound around the outer peripheral surface of the forming drum 1 and the annular belt member is formed, the end positions in the width direction of the belt members 2B to 4B are measured. I showed what I did. On the other hand, after the first belt member is wound around the forming drum 1, the width direction end position of the first belt member is measured by each detection device 10, and then the second belt member 2B is wound, After measuring the width direction end position of the second belt member 2B, the third belt member 3B is wound, and after measuring the width direction end position of the third belt member 3B, the fourth belt member 4B is wound. It is also possible to do. In this case, the position in the width direction and the width dimension of the first belt member can also be measured.

  Moreover, in this embodiment, what measured the width direction edge part position of the strip | belt-shaped member wound around the forming drum 1 was shown. On the other hand, by detecting the outline of the end portion in the width direction of the belt-like member on the conveyor by each detection device 10, it is possible to measure the position of the end portion in the width direction of the belt-like member in the same manner as described above.

The top view of the width direction edge part position measuring apparatus of the strip | belt-shaped member which shows one Embodiment in this invention Side view of width direction end position measuring device of band-shaped member Block diagram of the width direction end position measuring device of the band-shaped member An example of contour data Flow chart showing operation of control device Example of a graph summarizing measurement results Example of display by display device Example of data table Schematic which shows the width direction edge part position measuring apparatus of the conventional strip | belt-shaped member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Molding drum, 1a ... Motor, 1b ... Molding drum control apparatus, 10 ... Detection apparatus, 11 ... Fixing jig, 11a ... Clamping bolt, 12 ... Shaft, 13 ... Flame, 20 ... Rotary encoder, 21 ... Counter, 30 Reference point detection device 40 Reference control device 41 Storage device 42 Display device 43 Input device DA detection range 2B Second belt member 3B Third belt member 4B Fourth belt member .

Claims (8)

In the width direction end position measuring method of the band-shaped member for measuring the width direction end position of the band-shaped member wound around the forming drum,
A detection step of continuously detecting data of the contour in the thickness direction at the end in the width direction of the belt-shaped member wound around the forming drum using a detection device capable of detecting the contour of the object. When,
Based on the contour data detected by the detecting step, the position of the strip member in the thickness direction for measuring the width direction end position of the strip member in the contour data greatly changes in the thickness direction downward. A measurement position setting step of recognizing the point as a width direction end and setting by a measurement position setting means to a position displaced downward by a predetermined value from the highest position of the width direction end ;
A measuring step of measuring, for each contour data, a width direction end portion position of the belt-like member at the measurement position set by the measurement position setting step. In the width direction end position measuring method of the band-shaped member for measuring the width direction end position of the band-shaped member on the conveyor,
Using a detection device capable of detecting the contour of the object, a detection step of continuously detecting data of the contour in the thickness direction at the widthwise end of the belt-shaped member on the conveyor in the length direction of the belt-shaped member;
Based on the contour data detected by the detecting step, the position of the strip member in the thickness direction for measuring the width direction end position of the strip member in the contour data greatly changes in the thickness direction downward. A measurement position setting step of recognizing the point as a width direction end and setting by a measurement position setting means to a position displaced downward by a predetermined value from the highest position of the width direction end ;
A measuring step of measuring, for each contour data, a width direction end portion position of the belt-like member at the measurement position set by the measurement position setting step. In the width direction end position measuring device of the band-shaped member for measuring the width direction end position of the band-shaped member wound around the forming drum,
A detection device capable of continuously detecting the data of the contour in the thickness direction at the end in the width direction of the belt-shaped member wound around the forming drum;
Based on the contour data detected by the detecting device, the position of the strip member in the thickness direction for measuring the width direction end position of the strip member in the contour data changes greatly in the thickness direction downward. A measurement position setting means for recognizing a point as an end in the width direction and setting it at a position displaced downward from the highest position of the end in the width direction by a predetermined value ;
A measuring device for measuring the width direction end portion position of the belt-shaped member at the measurement position set by the measurement position setting device for each contour data. The width direction end part position of the strip | belt-shaped member of Claim 3 provided with the graphing means which graphs the measurement data of the width direction edge part position of the said strip | belt-shaped member corresponding to the rotation direction position of a forming drum. measuring device. The width direction edge part position measuring apparatus of the strip | belt-shaped member of Claim 3 provided with the display means which displays the image which arranged each said contour data in the rotation direction of a forming drum, and was binarized. In the width direction end position measuring device of the band-shaped member for measuring the width direction end position of the band-shaped member on the conveyor,
A detection device capable of continuously detecting the data of the contour in the thickness direction at the end in the width direction of the belt-like member on the conveyor;
Based on the contour data detected by the detecting device, the position of the strip member in the thickness direction for measuring the width direction end position of the strip member in the contour data changes greatly in the thickness direction downward. A measurement position setting means for recognizing a point as an end in the width direction and setting it at a position displaced downward from the highest position of the end in the width direction by a predetermined value ;
A measuring device for measuring the width direction end portion position of the belt-shaped member at the measurement position set by the measurement position setting device for each contour data. The width of the belt-shaped member according to claim 3, 4, 5, or 6, further comprising a determination unit that determines whether or not a measurement result of an end position in the width direction of the belt-shaped member is within a predetermined standard value. Direction end position measuring device. The width direction edge part position measuring apparatus of the band member according to claim 7, further comprising storage means for storing a measurement result and a determination result of the width direction edge part position of the belt member.

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