JP2002338031A - Method and apparatus for detecting cargo collapse - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To detect a load shift on the front and rear surfaces and both side surfaces of a conveyed object without being affected by the size of the conveyed object. SOLUTION: A transport means 7 for transporting the transported article 1, and measuring the forward portion of the transported article 1 in the transport direction along with the transport of the transported article 1 to detect a displacement of the front surface 1a of the transported article 1 and further transporting the transported article 1. The first area detecting means 34 for measuring the rearward position of the rear surface 1b of the conveyed article 1 by measuring the rear of the conveyed article 1 in the transfer direction with the transfer of the conveyed article 1, and the side face 1c of the conveyed article 1 by rotating the conveyed article 1 , 1d to move forward and backward in the transfer direction of the transfer means 7, and to measure the forward displacement of the one side surface 1c of the transferred object 1 by measuring the front of the transferred object 1 in the transfer direction as the transferred object 1 is transferred. A second area detecting means 39 for measuring the rear side of the transported object 1 in the transport direction by detecting the rear of the transported object 1 in the transport direction along with the transported transported object 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for detecting a cargo debris for judging whether or not a conveyed product has been deflected.

[0002]

2. Description of the Related Art In general, when a stacked product is conveyed by a conveyor, there is a possibility that a load may be lost when the product is placed on the conveyor or transferred by the conveyor.
As shown in FIG. 13, a monitoring gate b is set up on a conveyor a.

[0003] The monitoring gate b has first detecting means d formed on the pillars c on both sides and second detecting means f formed on the upper part e, and the first detecting means d is located on a vertical line in the transport direction. And the second detection means f is configured to be able to measure at the detection lines g on both sides along the transfer direction. If the load h of the conveyed article h exceeds the allowable range, The first and second detecting means detect the unloading of the front and rear surfaces of the article h, and the unloading of both sides of the article h are detected by the second detecting means f. .

[0004]

However, when the second detection means f of the monitoring gate b detects a load shift on both sides of the conveyed article h as described above, the conveyed article h has a predetermined size. In addition, it is necessary to cause the load to deviate more than the allowable range. Therefore, when the transported object h is smaller than the predetermined size, as shown in FIG. (FIG. 14 shows the lateral displacement of the conveyed product h), and the conveyed product h is detected on both sides of the conveyed material h without reaching the detection line g of the second detecting means f. There was a problem that you can not.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and provides a method and an apparatus for detecting a load displacement, which detects a load displacement on the front and rear surfaces and both side surfaces of the load without being affected by the size of the load. It is intended to provide.

[0006]

According to a first aspect of the present invention, there is provided a method for detecting a cargo displacement, comprising detecting a cargo displacement on a front surface of the transported material by measuring a forward portion of the transported material along with the transport of the transported material by the transporting means. And, with the further transfer of the conveyed goods, the rear of the conveyed goods in the transfer direction is measured to detect the rearward displacement of the conveyed goods,
By rotating the conveyed object, the side surface of the conveyed object is turned back and forth in the transfer direction, and the forward direction of the conveyed object is measured along with the transfer of the conveyed object to detect a load shift on one side of the conveyed object, and With the further transfer of the conveyed object, the rear side in the transfer direction of the conveyed object is measured to detect a load shift on the other side of the conveyed object.

According to a second aspect of the present invention, there is provided a method for detecting a cargo collapse.
The first area detecting means measures the forward direction of the transported object by detecting the transported object at a predetermined position in accordance with the transport of the transported object by the transporting means, detects a load shift on the front surface of the transported object, and further transports the object. By sensing the conveyed object at a predetermined position along with the transfer of the object, the first area detection means measures the rear of the conveyed object in the transfer direction, detects a load displacement on the rear surface of the conveyed object, and rotates the conveyed object. One side of the conveyed object by measuring the front of the conveyed object in the transfer direction by the second area detecting means by sensing the conveyed object at a predetermined position along with the transfer of the conveyed object, with the side of the conveyed object front and rear in the transfer direction. The second area detection means measures the rear of the transport direction of the transported article by detecting the transported article at a predetermined position along with further transport of the transported article, and detects the load unloading on the other side of the transported article. It is intended to leave.

According to the first or second aspect of the present invention, when the conveyed object is rotated, the conveyed object may be separated from the transfer means.

According to a fourth aspect of the present invention, there is provided an apparatus for detecting a cargo collapse.
Transport means for transporting the transported object, detecting a load shift on the front side of the transported object by measuring a forward direction of the transported object along with the transport of the transported object, and transferring the transported object along with further transport of the transported object; First area detecting means for measuring rearward to detect a load collapse on the rear surface of the conveyed article, rotating means for turning the side of the conveyed article back and forth by rotating the conveyed article, and transferring the conveyed article; As a result, the front of the transported object in the transfer direction is measured to detect a load shift on one side of the transported object. And a second area detecting means for detecting

[0010] According to a fifth aspect of the present invention, there is provided a cargo displacement detecting device,
Transport means for transporting the conveyed object, first area detection means for measuring the displacement of the conveyed object with respect to the vertical line on a vertical line in the transport direction, and measuring the forward direction of the conveyed object by the first area detection means First position detecting means for sensing the transported object along with the transport of the transported object so as to detect a load shift on the front surface of the transported object and activating the first area detecting means, and the transport direction of the transported article by the first area detecting means Second position detecting means for sensing the conveyed article with the transfer of the conveyed article and activating the first area detecting means so as to detect the rearward displacement of the conveyed article by measuring the rear side, and rotating the conveyed article. Rotating means for directing the side surface of the conveyed product forward and backward in the transfer direction, and a second area detecting means positioned downstream of the rotary means and measuring a load displacement of the conveyed product with respect to a vertical line on a vertical line in the transfer direction, , A third position at which the second area detecting means is operated by sensing the conveyed article as the conveyed article is transferred so as to detect a load shift on one side of the conveyed article by measuring the forward direction of the conveyed article by the two area detecting means. Detecting means, and detecting the transported object in accordance with the further transported transported object so as to detect the load displacement on the other side of the transported object by measuring the transport direction rearward of the transported object by the second area detecting means. And a fourth position detecting means for operating the detecting means.

According to a fourth or fifth aspect of the present invention, as set forth in the sixth aspect, when rotating the conveyed article, it may be provided with an elevating means for separating the conveyed article from the transfer means.

As described above, the first area detecting means measures and detects the load deviation on the front and rear surfaces of the conveyed article, and detects the second area detection via the rotation of the conveyed article on the both sides of the conveyed article. Since the forward and backward directions of the transported object are measured and detected by the means, it is not affected by the size of the transported object and the amount of load displacement unlike the case of measuring by the detection lines on both sides along the transport direction. In addition, it is possible to reliably detect a load displacement on the front and rear surfaces and both side surfaces of the conveyed object.

Further, when the transported object is separated from the transfer means when rotating the transported object, the bottom surface of the transported object is not scratched at the time of rotation, and is easily applied to the material of the transported object which is easily scratched. Can respond.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 to FIG. 12 show an embodiment of a method and an apparatus for detecting a cargo displacement according to the present invention.

The apparatus 1 for detecting a cargo crush of a conveyed object 1 includes a leg 3
A roller conveyor 7 is provided as a transfer means in which a plurality of rollers 6 are arranged on a base portion 5 constituted by a frame 5 and a side frame 4. A sprocket 8 is wound around the rollers 6 of the roller conveyor 7, and a chain is The transfer motor 10 is connected through the connection 9.

Further, the roller conveyor 7 has a substantially cross shape as viewed from a horizontal plane at an intermediate position by excluding the roller 6 at a predetermined position and dividing the roller 6 into two parts via a central frame 11 in a predetermined range in the transfer direction. A space 12 is formed, and a bottom frame 1 of the leg 3 is provided below the substantially cross-shaped space 12.
3 is provided with an elevating unit 14 of elevating means.

As shown in FIG. 4, the lifting section 14 of the lifting means has a lower pedestal 15 mounted on the upper surface of the bottom frame 13,
The lower pedestal 15 is provided with a lifting motor 16,
There are provided a plurality of cams 18 (two in FIG. 4) connected to the elevating motor 16 via connecting means 17 such as a chain or a gear. On the upper surface of the upper pedestal 20 of the elevating unit 14, a rotating unit 21 of a rotating means is provided.

As shown in FIG. 2, the rotating part 21 of the rotating means forms a base part 24 by legs 22 and side frames 23 erected from the upper surface of the upper pedestal 20 of the elevating part 14. In the center, as shown in FIG. 5, a rotating shaft 26 is supported via a central frame 25, and on the side of the base 24, a rotating shaft 2 is connected via connecting means 27 such as a chain or gear.
A rotation motor 28 connected to the motor 6 is provided. or,
The rotating shaft 26 is provided with a bracket 29 protruding in the direction of the side frame 23, and the side frame 23 surrounding the rotating shaft 26 is provided with two stoppers 30 engaging with the bracket 29, and the rotation of the rotating shaft 26 Is limited to 90 °.

At the top of the rotating shaft 26, a cruciform support 31 arranged in the substantially cruciform space 12 is arranged.

On the other hand, on the upstream side of the support 31, a first monitoring gate 32 is disposed so as to straddle the roller conveyor 7. A photoelectric sensor group 34 as a detecting means is provided, and is configured to measure a range on a vertical line and on a vertical line in the transport direction. In addition, the rollers 6 on the pillars 33 on both sides
At a predetermined height portion above the photoelectric sensor group 34, the photoelectric sensor group 34 has a predetermined width of the allowable load deviation amount α from the photoelectric sensor group 34.
And a second position detecting means 36 disposed downstream of the photoelectric sensor group 34 so as to have a predetermined width of the allowable load deviation amount α from the photoelectric sensor group 34. Have.

On the downstream side of the support 31, a second monitoring gate 37 that straddles the roller conveyor 7 substantially similar to the first monitoring gate 32 is disposed. It is provided with a photoelectric sensor group 39 of second area detecting means gathered in a direction, and is configured to be able to measure a range on a vertical line and on a vertical line in a transport direction. Also, at a predetermined height above the roller 6 in the pillars 38 on both sides,
Similarly to the first position detecting means 35 and the second position detecting means 36, the third position detecting means 40 disposed upstream of the photoelectric sensor group 39 having a predetermined width of the allowable load deviation amount α from the photoelectric sensor group 39. And a fourth position detecting means 41 disposed downstream of the photoelectric sensor group 39 so as to have a predetermined width of the allowable load deviation amount α from the photoelectric sensor group 39.

Hereinafter, the operation of the embodiment of the method and the apparatus for detecting a cargo crush according to the present invention will be described.

When transporting the article 1 to a predetermined position, the article 1 is first placed on the end of the roller conveyor 7 by a lift or the like,
As shown in FIG. 6A, the conveyed article 1 is transferred by the rollers 6 rotated by the transfer motor 10. Here, the transported article 1 to be transported is a stack of rectangular articles viewed from a horizontal plane, the front face of the transported article is 1a, the rear face is 1b, and one side face is 1c.
In FIGS. 6 and 7, reference numeral 42 denotes a detection line of the photoelectric sensor group 34 of the first monitoring gate 32;
Is a sensing line of the first position detecting means 35, 44 is a sensing line of the second position detecting means 36, 45 is a detecting line of the photoelectric sensor group 39 of the second monitoring gate 37, 46 is a sensing line of the third position detecting means 40. , 47 denote sensing lines of the fourth position detecting means 41, and the flow charts shown in FIGS. 10, 11, and 12 are connected by A and B, respectively.

Subsequently, as shown in FIGS. 6B and 6C,
The conveyed article 1 is transferred to the sensing line 43 of the first position detecting means 35.
, The first position detecting means 35 detects the entry of the conveyed object 1 and activates the photoelectric sensor group 34 of the first monitoring gate 32, and the detection line 42 of the photoelectric sensor group 34 moves on the vertical line and in the transport direction. Is measured in a range substantially on the vertical line of the transported object 1 in the transport direction. At this time, as shown in FIG. 8, when the unloading of the front surface 1 a of the transported object 1 is within the range of the allowable unloading amount α, the unloading of the front surface 1 a of the transported object 1 is detected by the detection line 42 of the photoelectric sensor group 34. Without detecting the
Is transported downstream as it is, and the front surface 1a
Is greater than the permissible load loss α,
The front surface 1 of the transported object 1 is detected by the detection line 42 of the photoelectric sensor group 34.
The transport load 1 is detected, and the transported load 1 is transferred to a reject line (not shown) to correct the load drop on the front surface 1a of the transported load 1 and returned to the roller conveyor 7.

Next, as shown in FIGS. 6 (D) and 6 (E), the conveyed object 1 is further transferred to the sensing line 4 of the second position detecting means 36.
4, the second position detecting means 36
Is detected, the photoelectric sensor group 34 is operated again, and the detection line 42 of the photoelectric sensor group 34 measures the rear of the transported object 1 in the transport direction within a range on a vertical line and substantially on a vertical line in the transport direction. At this time, as shown in FIG.
Is within the range of the allowable load deviation α, the rear surface 1 b of the conveyed article 1 is detected by the detection line 42 of the photoelectric sensor group 34.
The transported object 1 is transported downstream in the same state without detecting the load displacement of the photoelectric sensor group 34. If the load displacement of the rear surface 1b of the transported product 1 is larger than the allowable load displacement amount α, The detection of the unloading of the rear surface 1b of the transported object 1 by the detection line 42, and the transporting of the transported object 1 to a reject line (not shown) corrects the unloading of the rear surface 1b of the transported product 1 to the roller conveyor 7; return.

After measuring the displacement of the load on the front and rear surfaces 1a and 1b of the transported object 1, the transported object 1 is further transferred, and FIG.
As shown in FIG. 7, the sensor is stopped on the support base 31 by a sensor (not shown), and the cam 18 of the elevating unit 14 is rotated to
As shown in FIG. 7 (G), the conveyed object 1 is separated from the roller conveyor 7 by raising and lowering the rotating part 21 and the support table 31 as shown in FIG. By rotating the rotary shaft 26 by 90 °, as shown in FIG. 7H, one side 1c of the conveyed article 1 is directed forward in the transfer direction, and the other side 1d is directed rearward in the transfer direction. By rotating the cam 18 of 14 and lowering the upper pedestal 20, as shown in FIG. 7 (I), the rotating part 21 and the support base 31 are lowered to return the transported article 1 to the roller conveyor 7. In addition, the rotating shaft 26 is a
After being transported, the printer 1 stands by at that position and operates so as to rotate 90 ° in the opposite direction to the next transported object 1.

Subsequently, as shown in FIG.
Is transported to enter the sensing line 46 of the third position detecting means 40, the third position detecting means 40 senses the entry of the conveyed article 1 and activates the photoelectric sensor group 39 of the second monitoring gate 37, and Using the detection line 45 of the sensor group 39, the front of the transported object 1 in the transport direction is measured in a range on a vertical line and substantially on a vertical line in the transport direction. At this time, if the load displacement of the one side surface 1c, which is forward in the transfer direction of the conveyed article 1, is within the range of the allowable load displacement α, the photoelectric sensor group similarly to the photoelectric sensor group 34 of the first monitoring gate 32. The load 1 is transported downstream as it is, without detecting the displacement of the load 1 on one side 1c of the load 1 by the detection line 45, and the load on the side 1c that is forward in the transfer direction of the load 1 is detected. When the displacement is equal to or more than the allowable load displacement amount α, the load on the one side surface 1 c of the conveyed article 1 is further detected by the detection line 45 of the photoelectric sensor group 39, similarly to the photoelectric sensor group 34 of the first monitoring gate 32. Detected, the transported object 1 is transferred to a reject line (not shown), so that the load on one side surface 1c of the transported object 1 is corrected and returned to the roller conveyor 7.

Next, as shown in FIG. 7 (K), when the conveyed object 1 is further transferred and is withdrawn from the sensing line 47 of the fourth position detecting means 41, the fourth position detecting means 41 is retreated. , The photoelectric sensor group 39 of the second monitoring gate 37 is operated again, and the detection line 45 of the photoelectric sensor group 39 measures the rear side of the transported object 1 in the vertical direction and substantially perpendicular to the transport direction in the transport direction. I do. At this time, if the load displacement on the other side 1d, which is located rearward in the transfer direction of the conveyed article 1, is within the range of the allowable load displacement α, the photoelectric sensor group 3 of the first monitoring gate 32
Similarly to 4, the transported object 1 is transported downstream in the same state without detecting a load displacement on the other side 1d of the transported object 1 by the detection line 45 of the photoelectric sensor group 39, and the transported object 1 is moved backward in the transport direction. When the load displacement of the other side surface 1d becomes equal to or larger than the allowable load displacement amount α, the transported object 1 is further detected by the detection line 45 of the photoelectric sensor group 39 similarly to the photoelectric sensor group 34 of the first monitoring gate 32. Of the other side 1d is detected,
By transporting the conveyed article 1 to a reject line (not shown), the load on the other side 1d of the conveyed article 1 is corrected and returned to the roller conveyor 7.

Further, after measuring the displacement of the front and rear surfaces 1a, 1b and both side surfaces 1c, 1d of the conveyed article 1, FIG.
As shown in (L), the conveyed article 1 reaches a predetermined position.

As described above, the front and rear surfaces 1a, 1b
Is detected and measured by the photoelectric sensor group 34 of the first monitoring gate 32, and both side surfaces 1c,
1d is detected and detected by the photoelectric sensor group 39 of the second monitoring gate 37 via the rotation of the transported object 1 by measuring the forward and backward directions in the transport direction of the transported article 1. Therefore, both sides along the transport direction are detected. It is possible to reliably detect a load shift on the front and rear surfaces 1a and 1b and both side surfaces 1c and 1d of the load 1 without being affected by the size and the load shift amount of the load 1 as in the case of measuring on the detection line. it can.

When the transported object 1 is rotated, the elevating unit 14
When the transported object 1 is separated from the roller conveyor 7 via the, the bottom surface of the transported object 1 is not scratched during rotation,
It is possible to easily cope with the material of the conveyed article 1 that is easily scratched.

It should be noted that the method and the apparatus for detecting a cargo debris of the present invention are not limited to the above-described embodiment, and the first area detecting means and the second area detecting means are not photoelectric sensor groups but other detecting means. May be the first position detecting means
The fourth position detecting means may be of any type as long as it detects the entry and exit of the conveyed article and activates the first area detecting means and the second area detecting means, and the transferring means is not a roller conveyor but a slat conveyor. It is needless to say that other conveyors such as a belt conveyor and the like may be used, and that various changes can be made without departing from the gist of the present invention.

[0034]

As described above, according to the method and the apparatus for detecting a cargo displacement according to the present invention, various excellent effects can be obtained as follows.

I) The first area detecting means measures and detects the load deviation on the front and rear surfaces of the conveyed article, and detects the load deviation on both sides of the conveyed article by the second area detecting means via the rotation of the conveyed article. Since the measurement is performed by measuring the front and rear of the transport direction in the transport direction, the transport is not affected by the size of the transported object and the amount of load displacement unlike the case of measurement on the detection lines on both sides along the transport direction. It is possible to reliably detect displacement of the load on the front and rear surfaces and both side surfaces of the object.

II) When the conveyed object is separated from the transfer means when rotating the conveyed object, the bottom surface of the conveyed object is not scratched during the rotation, so that the material of the conveyed object which is easily scratched can be easily removed. Can respond.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrows II-II in FIG.

FIG. 3 is a view in the direction of arrows III-III in FIG. 1;

FIG. 4 is a schematic view showing an elevating part of the elevating means.

FIG. 5 is a schematic view showing a rotating part of a rotating means.

6A is a schematic diagram illustrating a state before a conveyed object enters a first monitoring gate, and FIG. 6B is a schematic diagram illustrating a state before a conveyed object enters a first monitoring gate in an embodiment of the present invention; FIG. FIGS. 4A and 4B are schematic views showing a state where the front surface of a transported object is measured by a photoelectric sensor group. FIG. 4C is a side view of FIG. 4B, and FIG. It is the schematic which shows the state which measures the back surface of a conveyance thing by a photoelectric sensor group, (E) is a side view of (D),
(F) is a schematic diagram showing a state in which the conveyed object has stopped on the support table.

FIG. 7 is a continuation of FIGS. 6A to 6F, and FIG.
FIG. 3 is a schematic diagram showing a state in which the conveyed object is separated from the roller conveyor, FIG. 3H is a schematic diagram showing a state in which the conveyed object is rotated by a rotating table, and FIG. (J) is a schematic diagram showing a state in which a conveyed object enters the second monitoring gate to measure the front of the conveyed object (one side of the conveyed object) by the photoelectric sensor group; (K) is a schematic diagram illustrating a state in which the rear of the conveyed object (the other side of the conveyed object) is measured by the photoelectric sensor group when the conveyed object enters the second monitoring gate, and (L) is a front and rear view of the conveyed object. It is the schematic which shows the state after measuring the load displacement of both sides.

FIG. 8 is an enlarged schematic view of a portion VIII in FIG. 6 (C).

FIG. 9 is an enlarged schematic view of an IX part of FIG. 6 (E).

FIG. 10 is a flowchart showing a procedure of an embodiment of a method and an apparatus for detecting a cargo debris according to the present invention.

FIG. 11 is a flowchart showing a procedure in a mode following FIG. 10;

FIG. 12 is a flowchart showing a procedure in a mode following FIG. 11;

FIG. 13 is a schematic side view showing a conventional example of a cargo crush detection device.

FIG. 14 is a schematic side view showing a state in which a conveyed product smaller than a predetermined size has been displaced;

[Explanation of symbols]

 Reference Signs List 1 conveyed object 1a front surface of conveyed object 1b rear surface of conveyed object 1c one side surface of conveyed object 1d other side surface of conveyed object 7 roller conveyor (transfer unit) 14 elevating unit (elevating unit) 21 rotating unit (rotating unit) 34 photoelectric sensor group (First area detecting means) 35 First position detecting means 36 Second position detecting means 39 Photoelectric sensor group (second area detecting means) 40 Third position detecting means 41 Fourth position detecting means

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshimasa Ichi, 1-19-10 Mori, Koto-ku, Tokyo Ishikawajima-Harima Heavy Industries, Ltd. Koto Office F-term (reference) 3F027 AA03 CA01 FA16 3F081 AA29 BC01 BE04 BE08 CA05 CA33 CC12 EA09 EA15

Claims (6)

[Claims] The present invention relates to a method for measuring a forward position of a transported object along with the transfer of the transported object by a transfer means to detect a load shift on the front surface of the transported object, and a rearward position of the transported object in a further transported state of the transported object. To measure the displacement of the load on the rear surface of the conveyed object, turn the conveyed object to turn the side of the conveyed object forward and backward in the transfer direction, and measure the front of the conveyed object in the transfer direction with the transfer of the conveyed object. A load on one side of the conveyed object, and measuring the rear side of the conveyed object in the transfer direction with the further transfer of the conveyed object to detect a consolidation on the other side of the conveyed object. Deformation detection method. 2. The method according to claim 1, wherein the first area detection means measures a forward position of the conveyed object by detecting the conveyed object at a predetermined position in accordance with the transfer of the conveyed object by the transfer means, and detects a displacement of the front of the conveyed object. The first area detecting means measures the rear of the transported object in the transport direction by detecting the transported object at a predetermined position in accordance with the transport of the further transported object, and detects the displacement of the rear surface of the transported object, and By rotating the side of the conveyed object forward and backward in the transfer direction by rotating the, by sensing the conveyed object at a predetermined position along with the transfer of the conveyed object, by measuring the front in the transfer direction of the conveyed object by the second area detection means Detects a load shift on one side of the conveyed object, senses the conveyed object at a predetermined position as the conveyed object is further transferred, and measures the rear of the conveyed object in the transfer direction by the second area detection means, thereby detecting the other side of the conveyed object. side A method for detecting a cargo debris, comprising detecting a cargo debris. 3. The method according to claim 1, wherein the conveyed article is separated from the transfer means when the conveyed article is rotated. 4. A transporting means for transporting the transported object, detecting a forward displacement of the transported object by measuring a forward direction of the transported object along with the transported transported object, and detecting a displacement of the front surface of the transported object, and accompanying a further transported transported object. First area detecting means for measuring the rearward of the transported object by measuring the rearward in the transport direction of the transported article, and rotating means for turning the side of the transported article forward and backward in the transport direction by rotating the transported article, With the transfer of the conveyed object, the front of the conveyed object in the transfer direction is measured to detect the displacement of one side of the conveyed object, and the rear of the conveyed object in the transfer direction is measured with the transfer of the further conveyed object. A load-displacement detecting device, comprising: a second area detecting means for detecting a load-displacement on the other side surface. 5. A transport means for transporting a transported object, a first area detecting means for measuring a load displacement of the transported article with respect to a vertical line on a vertical line in a transport direction, and a transporting direction of the transported article by the first area detecting means. A first position detecting means for sensing a conveyed object along with the conveyed article and operating a first area detecting means so as to detect a load shift on the front side of the conveyed article by measuring the front side, and the first area detecting means A second position detecting means for measuring the rearward in the transfer direction of the conveyed object and detecting the conveyed object with the transfer of the further conveyed object to detect a load shift on the rear surface of the conveyed object and operating the first area detecting means, Rotating means for turning the side of the conveyed product forward and backward in the transfer direction by rotating the conveyed product, and measuring the displacement of the conveyed product with respect to a vertical line on the vertical line in the transfer direction, which is located downstream of the rotary unit. Two-area inspection Output means, and the second area detecting means for sensing the conveyed object as the conveyed object is transported so as to detect a load shift on one side of the conveyed object by measuring the forward direction of the conveyed object by the second area detecting means. The third position detecting means for operating the conveyed object along with the further conveyed object so as to detect the rear side of the conveyed object by detecting the rear of the conveyed object in the conveying direction by the second area detecting means. And a fourth position detecting means for operating the second area detecting means upon sensing. 6. The load-unplacement detecting device according to claim 4, further comprising lifting means for moving the conveyed article away from the transfer means when rotating the conveyed article.