WO2018042489A1 - Man-conveyor handrail shape measuring device - Google Patents

Abstract

A man-conveyor handrail shape measuring device: is provided with a light guiding unit (15) that guides measuring light for a handrail (10) having a C-shaped cross section opening into the C-shape; based on the measuring light, acquires distance data to the back face of the handrail and two-dimensional distance data to the back face in the width direction of the handrail with a two-dimensional sensor (11-14) and calculates the dimensions of the C-shape; and compares preset reference data to the calculated dimensions and determines dimensional normality. In addition, the device acquires the distance data to a tension body (30) embedded in a transparent resin that forms the inner layer of the handrail with the two-dimensional sensor; calculates the height and pitch dimensions of the tension body from the acquired distance data; and compares preset reference data to the calculated dimensions and determines the normality of the tension body disposition.

Description

Man conveyor handrail shape measuring device

The present invention relates to a handrail shape measuring apparatus capable of inspecting the swelling of handrails used in man conveyors and the abnormal shape of internal tensile bodies.

Mantle conveyor handrails may swell, dent, dents, foreign matter, etc., on the surface during the manufacturing process. Further, the tensile body embedded in the handrail may be deformed or broken. These abnormal shapes not only impair the design of the handrail, but may also affect the vibration performance and durability performance of the man conveyor.

In order to inspect such an abnormal shape of a handrail, there is a handrail inspection device that makes a roller contact with the surface of the handrail, detects the displacement of the roller, and determines a bulge or a dent (for example, a patent document) 1).
In addition, there is a handrail inspection device that measures the shape of the handrail surface in a non-contact manner using a laser displacement meter and determines bulges and dents (for example, see Patent Document 2).

JP 2002-211872 A JP-A-2015-160724

In the case of Patent Document 1, since the displacement is detected by bringing the roller into contact with the handrail, the state of the portion not in contact with the roller cannot be confirmed. In order to compensate for this, a large number of rollers are required to contact the rollers over a wide area of the handrail, and the inspection apparatus becomes complicated due to the installation method, processing method, and the like.
In general, since the handrail has a soft surface, the handrail is deformed by the pressing force of the roller, and it is impossible to accurately detect a minute bulge, a dent, or the like.

In the case of Patent Document 2, since a laser displacement meter is arranged on the handrail surface to detect a two-dimensional shape, the side surface where the laser beam and its reflected light do not reach, the back surface with the C-shaped opening, and the inner side surface of the opening Cannot be detected.

Also, conventionally, the dimensions of the wire rope as a tensile body embedded in the resin, that is, its height and pitch may be abnormal, and an apparatus for judging the normality without contact has been desired.

This invention was made in order to solve such a subject, and provides the handrail shape measuring apparatus of a man conveyor which can determine the normality of the inside and outside dimension of C-shape without contact with a handrail. A first object is to provide a handrail shape measuring device for a man conveyor that determines the normality of the dimensions of a wire rope as a tensile body embedded in a handrail without contact.

In order to achieve the first object described above, the handrail shape measuring apparatus for a man conveyor according to the present invention includes a light guide portion that guides measurement light to the inside of the C-shape with respect to the handrail having a C-shaped cross section. And a back surface data acquisition unit that acquires distance data to the back surface of the handrail and two-dimensional distance data to the back surface in the width direction of the handrail based on the measurement light, and the C-shape from both the distance data And a storage unit for storing reference data preset for the dimensions. The determination unit compares the C-shaped dimensions with the reference data to compare the dimensions. It determines the normality of dimensions.

Moreover, in order to achieve said 2nd objective, the handrail shape measuring apparatus of the man conveyor which concerns on this invention is based on the measurement light, and to the tension body embedded in the transparent resin which forms the inner layer part of a handrail. Top surface data acquisition unit for acquiring distance data and two-dimensional distance data to the tensile body in the width direction of the handrail, and determination for calculating the height and pitch dimensions of the tensile body from both the distance data And a storage unit that stores reference data preset for the dimensions, and the determination unit determines the normality of the dimensions by comparing the dimensions with the reference data.

According to the present invention, there is provided a light guide for guiding the measurement light for the handrail whose section is opened in a C shape to the inside of the C shape, and based on the measurement light, the distance data to the surface of the handrail, and The two-dimensional distance data to the surface in the width direction of the handrail is acquired to calculate the C-shaped dimension, and the normality of the dimension is compared with the reference data set in advance for the calculated dimension. Since the determination is made, the normality of at least one of the width of the opening, the total width inside, and the height inside the C-shape can be accurately determined.

In addition, the height and pitch dimensions of the tensile body are calculated from the distance data to the tensile body embedded in the transparent resin forming the inner layer portion of the handrail, and a standard set in advance for the calculated dimensions. Since the configuration is such that the normality of the tensile body arrangement is determined by comparing with the data, in this case also, there is an effect that the distance and shape of the tensile body embedded inside can be inspected without contact.

It is a whole block diagram which shows typically the handrail shape measuring apparatus of the man conveyor by Embodiment 1 and 2 of this invention. It is a partial cross section figure which shows the structure of the handrail shape measuring apparatus of the man conveyor by Embodiment 1 of this invention installed in the cross section b in the whole block diagram shown in FIG. FIG. 4 shows shape data of a handrail according to the first embodiment of the present invention, (1) is surface shape data, (2) is shape data on the left side surface, and (3) is shape data on the right side surface. The data inside the C shape of a handrail by Embodiment 1 of the present invention are shown, (1) is the data when the light guide part is not installed in the inside, (2) is the light guide part installed in the inside It is a figure which shows the data in the case of doing. It is a schematic sectional drawing in case an abnormal shape exists in the surface shape and the inner surface shape of a handrail. FIG. 6 is a diagram showing abnormal shape data examples (1) to (3) of the front and side surfaces of the handrail shown in FIG. It is a figure which shows the various dimension content of the handrail by Embodiment 1 of this invention. It is a figure which shows the abnormal shape example of the C-shaped opening part of the handrail shown in FIG. 4, and the shape data of the inner side surface. It is a partial cross section figure which shows the structure of the handrail shape measuring apparatus of the man conveyor by Embodiment 2 of this invention installed in the cross section a in the whole block diagram shown in FIG. It is a figure which shows the process outline | summary for calculating the distance of the handrail tensile body by Embodiment 2 of this invention. It is handrail sectional drawing in case an abnormal shape exists in the arrangement | sequence of the tensile body embedded inside the handrail. It is a figure which shows the distance data of the tension body of the handrail shown in FIG.

Hereinafter, a handrail shape measuring apparatus for a man conveyor according to each embodiment of the present invention will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 is an overall configuration diagram when a handrail shape measuring apparatus for a man conveyor according to Embodiment 1 of the present invention is installed in a handrail production line. FIG. 2 shows a handrail shape measuring device for a man conveyor at the position of the cross section b in FIG. 1. As shown in the figure, various dimensions of the handrail 10 shown in the cross sectional view are acquired by the two-dimensional sensors 11-14. It is comprised so that. The shape of the handrail 10 in this example shows a normal state with no bulges or dents.

The output data of the two-dimensional sensors 11 to 14 is given to the determination unit 16. The determination unit 16 includes a storage unit 17. The reference data stored in the storage unit 17 is compared with the output data from the two-dimensional sensors 11 to 14, and the shape of the handrail 10 is abnormal or normal. A judgment result indicating whether or not is output.

Among the two-dimensional sensors 11 to 14 arranged in FIG. 2, the two-dimensional sensor 11 obtains the top surface shape data 20 as shown in FIG. 3 (1), and the two-dimensional sensor 13 shows in FIG. As shown, the left side surface shape data 22 is acquired, and the two-dimensional sensor 14 obtains the right side surface shape data 23 as shown in FIG. A1, B1, and B2 indicate the surface apexes. These shape data indicate a normal state with no bulges or dents. 3 (1) to 3 (3), the horizontal axis is indicated by x and the vertical axis is indicated by y, as shown.

On the other hand, FIG. 4 shows shape data output by the two-dimensional sensor 12 arranged on the back surface (lower arrangement) of the handrail in FIG. 2, and FIG. 4 (1) shows a case where the light guide unit 15 described later is not used. The back surface shape data 21a is shown, and FIG. 2B shows the back surface shape in the C-shaped opening by the light guide portion 15 inserted into the C-shaped portion of the handrail 10 excluding the C-shaped opening and the canvas. Data 21b is shown. 4 (1) and 4 (2), the horizontal axis is indicated by x and the vertical axis is indicated by y, as shown.
FIG. 5 shows a schematic cross-sectional view in the case where there is an abnormal shape on the surface shape and inner surface shape of the handrail. These abnormal shapes are the shape data detected in FIGS. 3 and 4, and FIGS. 6 and 8. The handrail 10 is detected based on the relational expression for calculating the main dimensions (1) to (7) shown in FIG. This will be described later.

In FIG. 1, the wire rope 1 and the canvas 2 are put into the handrail production line 3 a, and the wire rope 1 as a tensile body is formed in the handrail 10. When the formed resin is transparent, the alignment state of the wire rope 1 is inspected by the handrail shape measuring device 4a. This will be described later as a second embodiment.

Then, it is put into the handrail manufacturing line 3b and formed into a final shape. When the formed resin is colored, the appearance shape is inspected by the handrail shape measuring device 4b. Then, it is sent by the carry-out device 5 and taken up by the take-up device 6.

First, the inspection of the external shape of the handrail 10 will be described.
The handrail 10 shown in cross section in FIG. 2 has a C-shaped opening for mounting on and removing from the man conveyor, and for guiding in the direction of travel.

The handrail shape measuring device 4b includes two pairs of two-dimensional sensors 11 and 12, and 13 and 14, and a light guide unit using, for example, a prism, mounted in the C-shaped opening of the handrail 10 by the handrail shape measuring device 4b. 15 and the determination unit 16 described above. The two-dimensional sensors 11 and 12 are for capturing the shape data of the front and back surfaces of the handrail 10 at the same time, and the light guide portion 15 is C for viewing the inner side surface of the C-shaped opening from the back surface of the handrail 10. It arrange | positions in a character-shaped opening part, and the clearance gap is provided in the center part in order to catch the shape data of a handrail canvas surface like illustration. The two-dimensional sensors 13 and 14 are for capturing the shape data of the left and right side surfaces of the handrail 10 simultaneously. Each of these two-dimensional sensors 11 to 14 outputs the distance between the front and back surfaces of the handrail 10 and the two-dimensional distance data between the front surface of the handrail 10 in the width direction.

As shown in FIG. 2, when the handrail 10 is normal without swelling or dents, the shape data 20, 22 and 23 on the surface and left and right side surfaces are as shown in FIGS. 3 (1) to 3 (3), respectively. It becomes a smooth mountain shape. From this shape data, the coordinates (x: position and y: height) of each vertex A1, B1, and B2 are calculated and used for dimension measurement shown in FIG.

As shown in FIG. 5, when there are abnormal shapes I to V such as bulges and dents on the front surface, back surface, and left and right side surfaces of the handrail 10, the shape data on the front and left side surfaces are shown in FIGS. The distorted abnormal shapes I to III shown in FIG. Therefore, if the determination unit 16 provides the standard values of the position and height in the storage unit 17 in advance, it is possible to determine the quality of the outer surface shape.

On the other hand, the C-shaped opening of the handrail 10 and the shape of the inner side surface thereof have irregular data as shown in FIG. The edge portions at both ends in FIG. 4 (2) indicate C-shaped openings, and the determination unit 16 calculates the coordinates (x: position and y: height) of A2a and A2b. The center part of FIG. 4 (2) shows the canvas 2 inside the handrail 10 captured from the gap provided in the center part of the light guide part 15, and the center is the coordinates (x: position and y: height) of A3. Become. Both sides of A3 indicate the inner side surface of the C-shaped opening captured by the light guide 15 and calculate the coordinates (x: position and y: height) of A4a and A4b and the widths of A5a and A5b. These calculated values are used for the dimension measurement in FIG.

In the shape data shown in FIG. 7, when there is an abnormal shape such as swelling or peeling of the canvas 2 on the inner surface of the handrail 10, the inner shape data becomes distorted abnormal shapes V and IV as shown in FIG. The coordinates and width of each vertex change. If standard values of position, height, and width are provided in advance, it is possible to determine whether the inner surface shape is good or bad.

In FIG. 7, the main dimensions regarding the shape of the handrail 10 are shown, the dimension (1) is the C-shaped opening width, the dimension (2) is the handrail thickness, the distance from the surface to the canvas surface, and the dimension (3) is the handrail height. (Left and right), dimension (4) is the full width of the handrail, dimension (5) is the entire inner width of the C-shaped opening, dimension (6) is the inner height (left and right) of the C-shaped opening, and dimension (7) is C The shoulder width (left and right) of the letter-shaped opening is shown.

That is, for the dimension (1), a straight line is calculated from each coordinate with the function of A2ax and A2bx in FIG. 7, and the distance is used. For the dimension (2), an interval is calculated from each coordinate using a function of A1y in FIG. 3 (1) and A3y in FIG. 4 (2), and the distance is used. For the dimension (3), a distance is calculated from each coordinate using a function of A1y in FIG. 3 (1) and A2ay or A2by in FIG. A2ay and A2by indicate the values of the opening widths A2a and A2b in the vertical direction. For the dimension (4), an interval is calculated from each coordinate using the functions of B1y and B2y in FIGS. 3 (2) and 3 (3), and the distance is used. For the dimension (5), an interval is calculated from each coordinate using the functions of A4ay and A4by in FIG. 4 (2), and the distance is used. The dimension (6) is a function of A5ax or A5bx in FIG. 4 (2), and each width is calculated and the left and right distances are used. In FIG. 7, A5a can be used as the left dimension (6), and A5b can be used as the right dimension (6). The dimension (7) is a function of B1y in FIG. 3 (2) and A2ax in FIG. 4 (2) and / or B2y in FIG. 3 (3) and A2bx in FIG. 4 (2). Use.

The dimensions (1) to (7) are summarized in relation to the usage sensors 11 to 14 and the abnormal shapes I to V as follows.
Dimension (1): Opening width = f (A2ax, A2bx) ← The abnormal shape IV is detected by the sensor 12 used.
Dimension (2): handrail wall thickness = f (A1y, A3y) <-Use sensor 11, 12 detects abnormal shape I.
Dimension (3): Handrail height = f (A1y, A2ay / A2by) <-The abnormal shape I is detected by the sensors 11 and 12 used.
Dimension (4): full width of handrail = f (B1y, B2y) ← abnormal shapes II and III are detected by using sensors 13 and 14.
Dimension (5): Full width of C-shaped portion = f (A4ay, A4by) ← Use sensor 12 detects abnormal shape V.
Dimension (6): C-shaped part height = f (A5ax / A5bx) ← The abnormal shape V is detected by the sensor 12 used.
Dimension (7): C-shaped shoulder width = f (B1y, A2ax) <-Use sensor 12, 13 detects abnormal shape IV.
f (B2y, A2bx) <-The abnormal shape IV is detected by the sensors 12 and 14 used.

As described above, the calculated dimensions (1) to (7) can be determined to pass / fail with respect to the handrail dimension if reference data is previously provided in the storage unit 17 of the determination unit 16.

In the above-described embodiment, a prism is used for the light guide portion 15 disposed in the C-shaped opening. However, the light path of the two-dimensional sensor 12 is bent to introduce light into the C-shaped opening. If so, a mirror or the like may be used. Even in this case, a gap is provided in the center so that the shape of the canvas 2 can be captured.

Embodiment 2. FIG.
FIG. 9 shows a cross-sectional structure of the handrail 10 after passing through the handrail manufacturing line 3a. A wire rope 30 is inserted into the handrail 10 as a tensile body in order to maintain the strength of the handrail 10. In the handrail 10 production line, the thickness and height of the handrail 10 are generally stacked by repeating the molding process a plurality of times. When the innermost layer is formed of a transparent body, the wire rope 30 can be viewed from above. it can. Therefore, the two-dimensional sensor 11 disposed on the upper portion of the handrail 10 transmits the surface of the handrail 10 and captures the reflected light from the inner wire rope 30 and the canvas (not shown), as shown in FIG. Shape data (y: height and x: pitch) W1 to Wn (n = number of wire ropes) having a mountain shape corresponding to the number of wire ropes 30 are obtained.

From the shape data, the determination unit 16 calculates the coordinates (position (W1x, W2x... Wnx) and height (W1y, W2y... Wny)) of each vertex W1 to Wn. The W height is a variation in the height of the wire rope 30, and a height deviation from each coordinate value is used as a function of W1 to Wn.

That is,
W height (wire height): f (W1y, W2y, ..., Wny)
W pitch (wire pitch): f (W1x, W2x,..., Wnx)
Also, the W pitch is a variation in the pitch of the wire rope 30, and a positional deviation from each coordinate value is used as a function of W1 to Wn.

If the calculated W height and W pitch are provided with reference data in the storage unit 17 in advance, the determination unit 16 can determine whether the wire rope 30 inserted in the handrail 10 is good or bad.

As shown in FIG. 11, when there is an arrangement of wire ropes 30 and the number of abnormal shapes VI and VII, the shape data capturing the wire rope 30 has a distorted shape as shown in FIG. Coordinates and width change. Accordingly, if reference data for the position, height, and width is provided in the storage unit 17 in advance, it is possible to determine whether the wire ropes are arranged or the number of wire ropes.

In the first and second embodiments, the wire rope is used as the tensile body of the handrail 10. However, the belt width and height can be detected even in a steel belt, and the same effect can be obtained.

The present invention can be applied not only to the handrails of man conveyors but also to inspection of electric cables and tires.

1, 30 wire rope, 2 canvas, 3a, 3b handrail production line, 4a, 4b handrail shape measuring device, 5 carry-out device, 6 take-up device, 10 handrail, 11-14 two-dimensional sensor, 15 light guide unit, 16 judgment Part, 17 storage part.

Claims (6)

A light guide for guiding measurement light to the inside of the C-shaped handrail whose cross section is opened in a C-shape;
Based on the measurement light, a back surface data acquisition unit that acquires distance data to the back surface of the handrail that constitutes the interior and two-dimensional distance data to the back surface in the width direction of the handrail,
A determination unit that calculates the C-shaped dimension from both the distance data;
A storage unit for storing reference data preset for the dimensions,
The determination unit is a handrail shape measuring device for a man conveyor that determines the normality of the dimension by comparing the C-shaped dimension with the reference data. 2. The handrail shape measuring device for a man conveyor according to claim 1, wherein the dimension is at least one of an opening width, an inner total width, and an inner height in the C-shape. A side data acquisition unit that acquires distance data to the side surface of the handrail and two-dimensional distance data to the surface in the width direction of the side surface based on the measurement light,
The determination unit subtracts the width data of the opening acquired by the back surface data acquisition unit from the full width data of the handrail acquired by the back surface data acquisition unit, thereby obtaining the C-shaped shoulder portion. The handrail shape measuring device for a man conveyor according to claim 2, wherein width data is obtained and compared with the reference data to determine normality of the dimensions. Based on the measurement light, further provided a surface data acquisition unit for acquiring distance data to the surface of the handrail and two-dimensional distance data to the surface in the width direction of the surface;
The determination unit subtracts the distance data to the back surface acquired by the back surface data acquisition unit from the distance data to the surface of the handrail acquired by the surface data acquisition unit, thereby obtaining the thickness data of the handrail. The handrail shape measuring device for a man conveyor according to claim 1, wherein the normality of the dimensions is determined by comparing the reference data with the reference data. Based on the measurement light, further provided a surface data acquisition unit for acquiring distance data to the surface of the handrail and two-dimensional distance data to the surface in the width direction of the surface;
The determination unit subtracts the distance data to the shoulder acquired by the back surface data acquisition unit from the distance data to the surface of the handrail acquired by the surface data acquisition unit, thereby obtaining the height of the handrail. The handrail shape measuring device for a man conveyor according to claim 3, wherein data is obtained and compared with the reference data to determine normality of the dimensions. Upper surface data acquisition for acquiring distance data to a tensile body embedded in a transparent resin forming the inner layer portion of the handrail and two-dimensional distance data to the tensile body in the width direction of the handrail based on measurement light And
A determination unit that calculates the height and pitch dimensions of the tensile body from both the distance data;
A storage unit for storing reference data preset for the dimensions,
The determination unit is a handrail shape measuring device for a man conveyor that determines the normality of the dimensions by comparing the dimensions with the reference data.

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