JPH10221034A - Apparatus for inspecting distortion of tile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To highly accurately inspect the distortion of a tile. SOLUTION: A sensor inspects the distortion of a tile K by measuring a distance from the tile K mounted on a flat belt (carrying member) 21. The flat belt 21 is supported by a receive plate (receiving member) 25 thereby regulating vertical floating of the tile K, so that measurement accuracy of the distance by the sensor is high. Since the carried tile K is regulated in lateral shift by being elastically interposed between a positioning mechanism 40 and a pressing mechanism 50 and also laterally positioned by the positioning mechanism 40, a measurement point of the sensor 72 on the tile K may not shift. Since the tile K can be thus carried without allowing it to shift vertically and laterally, the distortion of the tile K can be highly accurately inspected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for inspecting the degree of distortion of a roof tile while transporting it.

[0002]

2. Description of the Related Art Conventionally, as a device for inspecting the degree of distortion of a fired tile, a conveyor for placing the tile and transporting the tile at a constant speed is provided, and a sensor arranged above the conveyor to measure a distance from the tile is provided. Are provided. As the tile passes beneath the sensors, a plurality of sensors simultaneously measure the distance to the tile, thereby detecting the height of points on the tile. Then, the state of the tile distortion is determined by comparing the detected value of each point with a reference value set in advance for each point.

[0003]

The above-mentioned conventional conveyer for transporting tiles in the distortion inspection apparatus has a plurality of circulating traveling mechanisms in which an endless conveyor wire is stretched between a pair of front and rear pulleys. Is placed on the front end of the area where the conveyor wire is traveling horizontally, and the tile is transported backward by the tile.While the tile is transported, the conveyor wire supports the tile only by its tension. It was like. For this reason, for example, the conveyor wire may bend up and down due to vibration transmitted from a driving mechanism for rotating the pulley or an impact when a tile is placed, and the tile may be conveyed while vibrating up and down accordingly. is there. When the tile moves up and down in this way, an error occurs in the distance measurement value obtained by the sensor, and the inspection accuracy of the tile decreases.
The present invention was created in view of the above circumstances,
It is an object of the present invention to enable inspection of the degree of distortion of a tile with high accuracy.

[0004]

According to a first aspect of the present invention, there is provided a conveyor for placing a roof on an endless transport member which is circulated and run between a pair of rotary support members and transporting the roof tile, and the transport member. A sensor that measures the distance from the roof placed on the roof to the roof, and inspects the degree of distortion of the roof based on the distance measured by the sensor. A receiving member is provided for supporting a region where the is placed in a vertical movement control state, and on both side edges of the conveyor, positioning means for positioning one side edge of the tile being conveyed by the conveying member, The present invention is characterized in that a pressing means capable of pressing the roof tile toward the positioning means is provided.

According to a second aspect of the present invention, in the first aspect of the present invention, the positioning means and the pressing means are respectively stretched between a pair of rollers so as to travel in the transport direction of the transport member. The endless belt is provided, and the running speed of the belt is set to the same speed as the conveying speed of the conveying member. A third aspect of the present invention is characterized in that, in the first or second aspect of the invention, at least one of the positioning means and the pressing means has a contact surface with the roof tile as a sliding surface. It has.

[0006]

Actions and effects of the present invention

<Claim 1> While the tile is transported on the transport member, since the transport member is supported by the receiving member, the movement of the tile up and down is regulated, so that the distance measurement accuracy by the sensor is high. In addition, since the tile to be conveyed is restricted from moving to the left and right by being sandwiched between the pressing means and the positioning means, and the positioning in the left and right direction is performed by the positioning means, it is measured by a sensor on the tile. The points that do not go wrong. As described above, since the tile can be transported without moving up, down, left, and right, inspection of the degree of distortion of the tile can be performed with high accuracy.

<Claim 2> A belt is in contact with both side edges of the tile to be conveyed. However, since the belt runs at the same speed as the tile, there is no relative displacement between the belt and the tile.
Roof tiles are guided stably. <Claim 3> Even when the tile is carried in with its side edge inclined with respect to the positioning means and the pressing means, when the pressing means presses the tile toward the positioning means, the tile contacts the easy sliding surface. Then, the posture is corrected by slipping easily, and the side edges of the tile are brought into close contact with the positioning means and the pressing means.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment> Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. Front base 11
At the left and right ends of the F and the rear base 11R, the columns 12, 13 are provided.
And a pair of side bases 14 are fixed in a bridging manner. A drive shaft 16 is supported by a bearing 15 fixed to the rear end of the side base 14, and two drive rollers (rotation support members, which are components of the present invention) 17 are fixed to the drive shaft 16 so as to be integrally rotatable. Have been. On the other hand, the bearing 1 fixed to the front end of the side base 14
8, a driven shaft 19 is supported, and the driven shaft 19 has two driven rollers (a rotation supporting member which is a constituent element of the present invention).
20 is fixed so as to be integrally rotatable. Between the drive roller 17 and the driven roller 20, two endless flat belts (conveying members, which are constituent elements of the present invention) 21 are stretched around in tension. Conveyor 1 having the above configuration
The value 0 allows the tile K to be transported from right to left in FIG. In addition, in front of the conveyor 10, the incoming conveyor 1
0A are provided in series, and a carry-out conveyor 10B is provided in series behind the conveyor 10, and the tile K is transferred from the carry-in conveyor 10A to the conveyor 10, from the conveyor 10 to the carry-out conveyor 10B in order.

In this embodiment, means is provided for restricting the tile K placed on the flat belt 21 from moving in the vertical direction. Hereinafter, the configuration will be described. A flat belt 2 is provided on the support 12 of the front base 11F.
1, a bracket 22 is provided so as to penetrate between the upper and lower horizontal traveling portions 21A.
Similarly to the bracket 22, a bracket 24 penetrating between the flat belts 21 is also attached to the column 23 erected at 4. Both ends of two receiving plates (receiving members, which are constituent elements of the present invention) 25 that are long in the front-rear direction are attached to the brackets 22 and 24. As shown in FIG. 4, the mounting structure includes an adjustment bolt 25A protruding from the lower surface of the receiving plate 25 and a bracket 22,
24 through a mounting hole (not shown) of the adjusting bolt 25.
A, brackets 22 and 2 with lock nut 25B screwed into A
4 is vertically sandwiched between the lock nuts 25B.
Is rotated to adjust the height and inclination of the receiving plate 25. The upper horizontal traveling portion 21A is in sliding contact with the receiving plate 25.
The weight of A and the tile K is supported by the receiving plate 25 from below. The receiving plate 25 is made of a synthetic resin material such that the friction coefficient between the receiving plate 25 and the flat belt 21 is small, so that the upper horizontal traveling portion 21A travels smoothly without receiving a large frictional resistance. can do.

The conveyor 10 has a positioning mechanism (positioning means, which is a constituent element of the present invention) 40 and a pressing mechanism (positioning means) for sandwiching the conveyed tile K from both the left and right sides to perform positioning in the left and right direction and restricting movement. A pressing means 50, which is a component of the present invention, is provided. First, the common structure of the positioning mechanism 40 and the pressing mechanism 50 will be described. Support 14 of rear base 11R and front base 1
A pair of left and right support plates 31 long in the front-rear direction is supported by brackets 32 on the columns 12 on the 1F. A drive shaft 34 is supported by a bearing 33 at the rear end of each support plate 31, and a drive roller 35 is fixed to the drive shaft 34 so as to be integrally rotatable. On the other hand, at the front end of the support plate 31,
The bearing 36 is attached movably back and forth by passing the mounting bolt 36A through the elongated hole 31A of the support plate 31 and sandwiching the support plate 31 with the lock nut 36B. A driven roller 37 is fixed to a driven shaft (not shown) supported by the bearing 36 so as to be integrally rotatable. An endless flat belt 38 is stretched between the driven roller 37 and the driving roller 35. I have. The tile K to be conveyed comes into contact with the surface of the flat belt 38, but a material that reduces the coefficient of friction between the flat belt 38 and the tile K is used for the surface of the flat belt 38. .
As a result, the surface of the flat belt 38 is an easily sliding surface 38A. The tile K can smoothly slide on the easy sliding surface 38A without receiving a large frictional resistance.

Next, the configuration of the positioning mechanism 40 will be described in detail. A guide roller 41 is supported at a position near the driven roller 37 of the support plate 31, and between the guide roller 41 and the drive roller 35, a linear traveling portion inside the flat belt 38 (on the side facing the pressing mechanism 50). Is the conveyor 10
Is parallel to the transport direction of the tile K. In addition, the driven roller 37 is located outside (the side separated from the pressing mechanism 50) than the linear running portion inside the flat belt 38. On the support plate 31, an elongated backup plate 42 parallel to the transport direction of the tile K is supported in a suspended state.
The back surface of the flat belt 38 slides on the inner surface of the backup plate 42 (the surface facing the pressing mechanism 50), so that the straight running portion of the flat belt 38 is moved outward (on the side separated from the pressing mechanism 50). ) Is regulated, so that the positioning function is exhibited. Further, since the backup plate 42 is made of a synthetic resin material that reduces the coefficient of friction between the backup belt 42 and the flat belt 38, the flat belt 38 can slide smoothly without receiving a large frictional resistance. ing.

Next, the pressing mechanism 50 will be described in detail. A rocking body 51 is swingably supported at two front and rear portions of the support plate 31, and a pressing plate 52 long in the front-rear direction is connected to the front ends of the two rocking bodies 51 so as to be relatively rotatable. The pressing plate 52, the two oscillating members 51, and the support plate 31 constitute a four-node link mechanism. When the oscillating member 51 oscillates, the pressing plate 52 maintains the posture parallel to the direction in which the tile K is conveyed. The parallel movement is performed so as to approach and separate from the positioning mechanism 40. A guide roller 53 is supported at the front end of the pressing plate 52 so as to be located inside the driven roller 37 (positioning mechanism 40 side).

The oscillating body 51 is urged by a compression coil spring 54 in a direction in which the pressing plate 52 presses the linear running portion 38A of the flat belt 38 toward the positioning mechanism 40 side.
The pressed linear running portion 38A is projected to the positioning mechanism 40 side from the drive roller 35, and the linear running portion 38A is
The distance between A and the linear running portion 38A on the positioning mechanism 40 side is set to a dimension slightly smaller than the width of the tile K.
Note that the urging force of the compression coil spring 54 is
The adjustment can be performed by loosening A and moving the adjustment bolt 55B. Further, since the pressing plate 52 is made of a synthetic resin material having a small friction coefficient with the flat belt 38, the flat belt 38 can smoothly slide without receiving a large frictional resistance. ing.

A stopper bolt 57 is screwed into the mounting plate 56 fixed to the support plate 31. When the rocking body 51 comes into contact with the tip of the stopper bolt 57, an excessive amount of the pressing plate 52 toward the positioning mechanism 40 is provided. The displacement is regulated. The maximum displacement position of the oscillating body 51 toward the positioning mechanism 40 can be adjusted by rotating the stopper bolt 57. Further, a tension member 58 having a tension roller 58A attached to its tip is swingably supported at a position between the two swinging members 51 on the support plate 31. The tension member 58 is urged by a compression coil spring 59 in a direction to press the tension roller 58A outward (toward the side separated from the positioning mechanism 40) against the linear running portion 38A outside the flat belt 38. By the urging of the tension roller 58A,
Regardless of the position of the pressing plate 52, the flat belt 38 is always kept in a tensioned state.

Next, the conveyor 10, the positioning mechanism 4
A driving mechanism for driving the flat belts 21 and 38 of the pressing mechanism 50 and the pressing mechanism 50 will be described. A rectangular frame 60 having a front frame 62, a center frame 63, and a rear frame 64 interposed between two side frames 61 is fixed to the columns 13, 23 of the rear base 11R and the side base 14. Center frame 63
A motor 65 is fixed to the left end of the rear frame 64. A drive pulley 66 fixed to the output shaft 65A
And a driven pulley 67 fixed to the left end of the drive shaft 16, an endless timing belt 68 is wound around the flat belt 21 of the conveyer 10 by driving the motor 65. I have. The timing belt 68 is covered with a cover 69.

Further, two drive bevel gears 69 are fixed to the drive shaft 16, and a driven bevel gear 70 fixed to both the drive shafts 34 of the positioning mechanism 40 and the pressing mechanism 50 is fixed to the two drive bevel gears 69. Is engaged. Thus, when the flat belt 21 of the conveyor 10 is driven by the motor 65, the flat belt 3 of the positioning mechanism 40 and the pressing mechanism 50 is driven.
8 also circulates. Further, the drive rollers 17 of the conveyor 10, the positioning mechanism 40 and the pressing mechanism 50,
The outer diameter of the belt 35 and the gear ratio of the driving bevel gear 69 and the driven bevel gear 70 are such that the traveling direction and traveling speed of all the flat belts 21 and 38 of the conveyor 10, the positioning mechanism 40 and the pressing mechanism 50 are the same. Is set to

Next, the sensor 72 for inspecting the degree of distortion of the tile K will be described. Left and right guide bars 73 orthogonal to the transport direction of the tile K are attached to the front frame 62 of the frame 60. The left and right guide bars 73 have a plurality of (four in this embodiment) sensors 72.
Are attached via a left and right movement bracket 74, a front and rear movement guide bar 75, a front and rear movement movement bracket 76, and a vertical movement guide bar 77. The sensors 72 are arranged at four locations spaced apart in the direction crossing the tile transporting direction, and can be adjusted in any direction of up, down, front, back, left and right by moving the brackets 74, 76 and the guide bar 77. It has become.

The sensor 72 irradiates the surface of the roof K with a laser beam from above, detects the position where the reflected light is received by a light position detecting element (not shown), and calculates the position based on the principle of triangulation. By doing so, the distance from the sensor 72 to the tile K is measured. The measurement by the sensor 72 is performed while the tile K is being conveyed at a constant speed. The distance is continuously measured with respect to a linear region of the tile K parallel to the transport direction. The degree of distortion is detected. An example of the specific measuring method will be described. The transport speed is 0.3 m / sec, the length of the measurement area parallel to the transport direction is 280 mm, and the length of the measurement area is 7 m.
m is divided into 40 measurement points, and the time required to measure one measurement point is set to 0.023 sec. The sampling (irradiation of the laser beam) of the sensor 72 is set to 10000 times / sec, and sampling is performed 230 times at one measurement point, and an average value of the 230 times is set as a distance measurement value of the measurement point. And
The difference between the measured value and a preset reference value is displayed on a monitor (not shown), and whether or not the difference between the measured value and the reference value exceeds a threshold value is visually checked to determine whether the difference has exceeded the threshold value. The degree of distortion of the tile K is inspected.

Next, the operation of the present embodiment will be described. When the tile K is transferred from the loading conveyor 10A to the flat belt 21 of the conveyor 10, the tile K is transferred to the flat belt 21.
Is transported at a constant speed. At this time, the flat belt 2
1 is provided with a receiving plate 25 from below, so that even if vibration from the motor 65 is transmitted or a shock is applied when the tile K is transferred, the tile K can move up and down. Instead, it is stably moved along the straight path by being guided by the receiving plate 25. The receiving plate 25 is made of a resin material having a small coefficient of friction with the flat belt 21. Therefore, there is no danger that the flat belt 21 slips between the driving roller 17 and the driven roller 20 due to the frictional resistance between the flat belt 21 and the receiving plate 25, and consequently the transport speed is deviated. Furthermore, there is no fear that the flat belt 21 will rise from the receiving plate 25 due to the frictional resistance and cause the tile K to move up and down.

The transferred tile K is positioned by the positioning mechanism 40.
And the pressing mechanism 50. At this time, the distance between the two driven rollers 37 is larger than the width of the tile K, and the distance between the driven rollers 37 and the guide rollers 41 and 53 is large.
Since the gap is tapered, the roof tile K is guided between the flat belts 38 without hitting the driven roller 37. Since the surface of the flat belt 38 is an easily sliding surface 38A that allows the tile K to easily slide, even if the tile K is transferred in an oblique posture, the tile K moves along its side edge in the transport direction. It is corrected to the correct posture to turn in parallel.

The induced roof tile K is subjected to an elastic pressing force of the compression coil spring 54 of the pressing mechanism 50, and the positioning mechanism 4
Pressed to zero side. Then, the left edge of the tile K is the flat belt 3
By being pressed against the backup plate 42 via 8, the position of the left edge of the tile K is determined, and the right and left movement of the tile K is regulated by the pressing force from the pressing mechanism 50 side. Backup plate 4
A resin material that reduces the coefficient of friction between the flat belt 38 and the pressing plate 52 is used. Therefore, there is a possibility that the flat belt 38 slips between the driving roller 35 and the driven roller 37 due to the frictional resistance between the backup plate 42 and the pressing plate 52, resulting in an irregular running speed. Absent. The flat belts 38 of both the positioning mechanism 40 and the pressing mechanism 50
Is set to be the same as that of the flat belt 21 of the conveyor 10, so that the roof tile K
The sheet is conveyed at an appropriate speed without causing slippage.

When the roof tile K thus conveyed reaches a predetermined measurement area (not shown), the sensor 7 is moved in the manner described above.
2 measures the distance to the tile K, and the degree of distortion of the tile K is inspected based on the measurement result. As described above, in the present embodiment, while the measurement by the sensor 72 is being performed, the vertical movement of the tile K is restricted by the receiving plate 25, so that the distance measurement accuracy by the sensor 72 is high. In addition, since the tile K is positioned in the left-right direction by being sandwiched between the positioning mechanism 40 and the pressing mechanism 50 and the play in the left-right direction is restricted, the measurement position by the sensor 72 may be shifted. Absent.
Therefore, the inspection of the degree of distortion of the tile K by the sensor 72 can be performed with high accuracy.

The flat belt 38 of the positioning mechanism 40 and the pressing mechanism 50 is run at the same speed as the flat belt 21 of the conveyor 10 so that the roof tile K is transported at a predetermined speed. A decrease in the measurement accuracy of the sensor 72 due to the speed fluctuation is avoided. Further, the flat belt 38 of the positioning mechanism 40 and the pressing mechanism 50
The tile K is made to be a sliding surface 38A so that the tile K can slide easily.
When pressing the tiles toward the positioning mechanism 40, the roof tiles K can slide easily.
The posture is corrected by sliding on 8A. Therefore, it is possible to prevent the measurement by the sensor 72 from being disordered due to the tile K being transported in the oblique posture.

Further, since the pressing plate 52 of the pressing mechanism 50 can be resiliently displaced, even if the width of the tile K varies due to the firing of the tile K, the tile K can be moved regardless of the variation. By sandwiching the tile K between the positioning mechanism 40 and the pressing mechanism 50, the movement of the tile K in the left-right direction and the positioning can be reliably performed. <Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. Various changes can be made without departing from the scope of the invention.

(1) In the above embodiment, a flat belt is used as a conveying member. However, according to the present invention, a wire-shaped one may be used. (2) In the above embodiment, a plurality of flat belts, which are transport members, are provided in parallel, but according to the present invention, only one wide flat belt over the entire width region of the tile may be used. (3) In the above embodiment, the urging force of the compression coil spring is used as a means for pressing the tile toward the positioning means side. However, according to the present invention, the roof is not limited to the spring but is urged using, for example, the air pressure of an air cylinder. Alternatively, when the tile reaches the area measured by the sensor, the pressing means may move as a whole and press the tile toward the positioning means.

(4) In the above embodiment, the circulating flat belt is used as the positioning means and the pressing means, but according to the present invention, one or both of the positioning means and the pressing means travel. Instead of the flat belt, a guide member formed of a plurality of rotatable rollers or a guide member formed of a rail made of a material having a small friction coefficient may be used. In this case, if one of the guide members is urged toward the opposite guide member so as to sandwich the tile between the two guide members, the positioning and play control of the tile in the left-right direction can be performed.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view of a first embodiment.

FIG. 2 is a side view of the first embodiment.

FIG. 3 is a partially cutaway rear view of the first embodiment;

FIG. 4 is an enlarged sectional view showing a mounting structure of a receiving plate according to the first embodiment.

FIG. 5 is a partially cutaway plan view showing a mounting structure of the receiving plate of the first embodiment.

FIG. 6 is a partially cutaway perspective view showing a pressing unit according to the first embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Conveyor 17 ... Driving roller (rotation support member) 20 ... Driving roller (rotation support member) 21 ... Flat belt (conveying member) 25 ... Receiving plate (receiving member) 35 ... Driving roller 37 ... Driving roller 38 ... Flat belt 38A ... Easy sliding surface 40 ... Positioning mechanism (positioning means) 50 ... Pressing means (pressing means) 72 ... Sensor K ... Roof

Claims (3)

[Claims] 1. A distance between a conveyer that places and transports a tile on an endless transport member that is circulated between a pair of rotary support members so as to be able to circulate, and a roof tile that is placed on the transport member are measured from above. And a sensor for inspecting the degree of distortion of the tile based on a distance measured by the sensor, wherein the conveyor has an area in which the tile of the transport member is placed in a vertical movement control state. Receiving members are provided on both sides of the conveyor, positioning means for positioning one side edge of the tile being conveyed by the conveying member, and a pressing means capable of pressing the tile toward the positioning means. Means for inspecting distortion of a tile. 2. The positioning device and the pressing device are each provided with an endless belt that runs along the transport direction of the transport member by being stretched between a pair of rollers, and The inspection device according to claim 1, wherein a traveling speed of the belt is set to be equal to a conveying speed of the conveying member. 3. The roof tile according to claim 1, wherein at least one of the positioning unit and the pressing unit has an easily sliding surface in contact with the roof tile. Distortion condition inspection device.