JP5117704B2 - Cutting product inspection equipment - Google Patents

Description

  The present invention relates to a cut product inspection apparatus for inspecting the cut size and shape of a cut product. In particular, the present invention relates to a cut product inspection apparatus for accurately inspecting the cut size and shape of a booklet such as a pamphlet cut into a predetermined size.

  First, the brochure production process will be described. In the case of a two-fold (four-page) brochure, a brochure on which an article is printed by a printing machine is folded into two by a folding machine, and the brochure is sent to a three-way cutting machine.

  In the case of a plurality of pamphlets, a crease is given to the printed pamphlet by a folding machine, and the pamphlets with creases are overlapped with the required number of pages. The superimposed printed sheets are aligned, and the fold positions are bound by a saddle stitcher to obtain a pamphlet. Then, this brochure is folded in two and sent to a three-way cutting machine.

  The pamphlet sent to the three-way cutting machine as described above is cut off unnecessary portions by the three-way cutting machine. That is, as shown in FIG. 1, the front edge of the pamphlet Q fed from the direction of the arrow is applied to the stopper S and stopped at a predetermined position, and then a rear cutting blade (not shown) is placed at the position indicated by a one-dot chain line a. ) Is dropped and the pamphlet Q is cut in the small edge direction. Subsequently, the cutting blades (not shown) on both sides are dropped at a position indicated by a one-dot chain line b in FIG. 1 to cut the pamphlet Q in the vertical direction.

  In this way, the pamphlet is trimmed unnecessary portions and aligned in a rectangular shape, and the sizes in the fore edge direction and the top-and-bottom direction are aligned to predetermined dimensions. Then, the cut pamphlets are sent to a stocker, a packing device or the like and sequentially stacked.

  The pamphlet is manufactured according to the above procedure, but when the pamphlet Q sent to the three-way cutting machine hits the stopper S and stops, it is repelled by the stopper S and slightly separated from the stopper S as shown by a two-dot chain line in FIG. May stop at a different position. In such a case, the size of the brochure Q in the fore edge direction is shorter than the normal size, resulting in a defective product. Further, when the pamphlet Q tilts obliquely as shown by a two-dot chain line in FIG. 1 when it bounces off with the stopper S, the two sides located in the fore edge direction are not parallel, and the pamphlet Q may have a distorted shape. .

  For this reason, a cutting product inspection apparatus for inspecting a pamphlet after cutting has been proposed. The cutting product inspection apparatus shown in FIG. 2 includes six spot sensors r on the conveyance surface of the pamphlet Q, and is located on the front side, the rear side in the conveyance direction, and the both sides of the pamphlet Q having the correct dimensions. In this way, six spot sensors r are arranged. And when each spot sensor r detects each side of the pamphlet Q at the same time, it is determined to be non-defective, and otherwise, it is determined to be defective.

  As another cutting product inspection apparatus, an image processing system equipped with a CCD camera is also known.

  In the cut product inspection apparatus including six spot sensors, a non-defective product can be detected correctly if the pamphlet passes through a predetermined region surrounded by the six spot sensors. However, even if the pamphlet Q is correctly cut by the three-way cutting machine, if the angle of the pamphlet Q is tilted while moving from the three-way cutting machine to the cut product inspection device, the pamphlet Q shown by the two-dot chain line in FIG. It passes through the cut product inspection device in a tilted state, and is determined as a defective product. Therefore, when the pamphlet is sent with an inclination or when the position of the pamphlet is shifted in the vertical direction, it cannot be determined correctly.

  Further, in such a cut product inspection device, if the size of the pamphlet is different, the distance between the spot sensors must be adjusted in accordance with the size of the pamphlet each time. In particular, if the pamphlet is out of the standard size, the position of the spot sensor has to be adjusted manually by trial and error, making setting work difficult.

  In the image processing type cut product inspection apparatus, a plurality of CCD cameras are required. Also, with the image processing type cutting product inspection device, when the thickness of the pamphlet changes, it is necessary to adjust the focus of the CCD camera so that the surface of the pamphlet is in focus. become. In addition, in the image processing method, the installation location is restricted because it is affected by external light.

  The present invention has been made in view of the technical problems as described above. The purpose of the present invention is to determine whether a cut product is good or bad even when the cut product is sent obliquely. An object of the present invention is to provide an image processing type cut product inspection apparatus. Another object of the present invention is to provide a cut product inspection apparatus that requires less adjustment work even when the (planar) dimensions of the cut product are different.

The cutting product inspection apparatus according to claim 1 of the present invention detects a length of a cut product transport unit that transports the cut product and a predetermined straight line extending in a direction not parallel to the transport direction of the cut product through the cut product. A width detection sensor for measuring, a conveyance distance measuring means for measuring a conveyance distance of the cut product, a passage detection sensor for detecting that the front and rear sides of the cut product have passed, and a front and rear of the cut product in the conveyance direction A timing at which the passage detection sensor detects that the side of the cut has passed through the passage detection sensor, a conveyance distance measurement signal of the cut product by the conveyance distance measurement means, and a conveyance direction of the cut product detected by the width detection sensor, Calculates the width of the cut product in the direction parallel to the front side or the back side of the cut product based on the straight line passing length, which is the length that the predetermined straight line extending in the non-parallel direction passes through the cut product. And Width calculated the cut product is characterized by having a determining means for determining good or bad of the cutting products depending on whether it is within a predetermined range.

In the cut product inspection device according to claim 1 of the present invention, even when the cut product is conveyed while being inclined , the cutting is performed in the direction parallel to the front side or the rear side of the cut product. The width of the product (for example, the length of the cut product in the top-and-bottom direction) can be calculated, and it can be accurately determined whether the width is cut to a predetermined dimension .

The embodiment of claim 2 of the present invention has the width detection sensor for detecting a length of a predetermined straight line extending in a direction not parallel to the cutting product conveyance direction at a plurality of locations of the cut product. The determination means detects when the passage detection sensor detects that the front and rear sides in the conveyance direction of the cut product have passed through the passage detection sensor, and the conveyance distance measurement signal of the cut product by the conveyance distance measurement means, If the side edges that are substantially parallel to the direction of conveyance of the cut product are parallel to each other based on the straight line passing lengths at the two locations of the cut product detected by the width detection sensor, Is characterized in that the cut product is determined to be defective .

In the embodiment of claim 2, even when the cut product is conveyed while being tilted, for example, by the width detection device, cutting in a direction parallel to the front side or the rear side of the cut product in two places Since the width of the product (for example, the length of the cut product in the vertical direction) can be calculated, by comparing the respective widths, the side edges that are substantially parallel to the transport direction of the cut product (for example, the vertical size of the cut product) It is possible to accurately determine whether or not the sides located in the direction are parallel to each other .

The width detection sensor according to an embodiment of claim 3 of the present invention is characterized in that a detection region is constituted by two line sensors or area sensors arranged on the predetermined straight line .

According to an embodiment of the present invention , a width detection sensor is configured by two line sensors or area sensors, and each line sensor or each area sensor intersects the predetermined straight line and the side in the vertical direction of the cut product. If the position is detected, the length of the predetermined straight line passing through the cut product can be calculated using the distance between the line sensors or the area sensors. Moreover, according to this embodiment, the width detection sensor can be made compact.

The line sensor or area sensor in an embodiment of claim 4 of the present invention is characterized in that position adjustment is possible in a direction parallel to the predetermined straight line .

In the embodiment of claim 4, the position of the line sensor or area sensor can be adjusted, so that the detection range of the line sensor or area sensor passes through the sides on both sides of the cut product. The position of the line sensor or area sensor can be adjusted in advance according to the length (width) in the vertical direction. Therefore, it becomes possible to inspect cut products in a wide range of dimensions.

According to an embodiment of the present invention, the plurality of passage detections are arranged along a direction that is not parallel to the conveyance direction of the cut product, and each detects that the front and rear sides in the conveyance direction of the cut product have passed. A sensor, and the determination means detects when the passage detection sensor detects that the front and rear sides in the conveyance direction of the cut product have passed through the passage detection sensors, and the cutting distance of the cut product by the conveyance distance measurement device. It is characterized in that the quality of the cut product is determined based on the conveyance distance measurement signal .

The embodiment of claim 5 is capable of detecting the timing when the front and rear sides of the cut product pass through the plurality of passage detection sensors, so the front of the cut product in the transport direction (or the back in the transport direction). It is possible to calculate the inclination of the cut product from the deviation of the timing of passing through each passage detection sensor and the conveyance distance measurement signal therebetween. Therefore, according to the cut product inspection apparatus of the present invention, it is possible to determine the quality of the cut product after correcting the tilt of the cut product, so the quality of the cut product sent in the tilted state is determined. it can be determined accurately.

The determination means according to an embodiment of claim 6 of the present invention includes the timing at which the passage detection sensor detects that the front and rear sides of the cut product have passed through the passage detection sensors, and the conveyance distance measurement. The length of the cut product in the direction perpendicular to the front or rear side of the cut product is calculated based on the conveyance distance measurement signal of the cut product by the means, and the calculated length of the cut product is within a predetermined range. It is characterized by determining whether the cut product is good or bad depending on whether or not it exists.

According to an embodiment of the present invention, even when the cut product is conveyed while being inclined, the length of the cut product in the direction perpendicular to the front or rear side of the cut product (for example, the edge of the cut product) The length of the direction) can be calculated, and it can be accurately determined whether the length is cut to a predetermined dimension.

The determination means according to an embodiment of claim 7 of the present invention includes the timing at which the passage detection sensor detects that the front and rear sides of the cut product have passed through the passage detection sensors, and the conveyance distance measurement. Based on the conveyance distance measurement signal of the cut product by the means, it is determined whether the front side in the conveyance direction of the cut product is parallel to the rear side in the conveyance direction. If it is not parallel, the cut product is defective. It is characterized by determining that there is.

According to an embodiment of the present invention , even when the cut product is conveyed while being inclined, the length of the cut product in a direction perpendicular to the front or rear side of the cut product, for example, by a plurality of passage detection sensors, respectively. (For example, the length of the cut product in the fore edge direction) can be calculated, and by comparing the respective lengths, the front side in the transport direction of the cut product and the back side in the transport direction (for example, the length of the cut product) It is possible to accurately determine whether or not the sides located in the fore edge direction are parallel.

In the embodiment of the eighth aspect of the present invention, the cut product transport section transports the cut product in the transport direction while holding the cut product .

The embodiment of claim 8 is provided with a cut product transport unit that transports the cut product in the transport direction while holding the cut product, so that the cut product is measured during measurement of the length of the cut product in the edge direction and the length in the vertical direction. Therefore, it is possible to inspect the cut product with high accuracy without shifting in the direction orthogonal to the transport direction or tilting the angle.

In the embodiment of the ninth aspect of the present invention, the cut product transport section includes an upper transport mechanism section including an upper timing belt for transporting the cut product from above and below, and a lower transport mechanism section including a lower timing belt, The upper transport mechanism is supported by a mechanical cylinder having a torque sensor so as to be movable up and down. The mechanical cylinder is a linear actuator that expands and contracts by moving a rod by a motor such as a servomotor, and a torque sensor can detect torque applied to the motor.

In the embodiment of the ninth aspect, since the upper transport mechanism is supported by the mechanical cylinder so as to be movable up and down, the height of the upper transport mechanism is increased by the mechanical cylinder so that the cut product can be held with a predetermined pressing force. After the adjustment is completed, the height of the upper transport mechanism is locked. Therefore, even when there is no cut product between the upper conveyance mechanism unit and the lower conveyance mechanism unit, the upper conveyance mechanism unit is not lowered unlike the case where the upper conveyance mechanism unit is supported using the air cylinder. Therefore, a predetermined gap is maintained between the upper transport mechanism and the lower transport mechanism, and the cut product can be smoothly fed between the upper transport mechanism and the lower transport mechanism. In addition, the pressing force of the cut product is unlikely to fluctuate.

In the embodiment of claim 10 of the present invention, the traveling speed of the upper timing belt and the traveling speed of the lower timing belt in the upper transport mechanism and the lower transport mechanism are equalized by power from the same motor. The upper transport mechanism is transmitted with power from a motor via a universal joint .

In the embodiment of the present invention , since the upper transport mechanism and the lower transport mechanism are driven by power from the same motor, the traveling speed and the lower timing of the upper timing belt are driven as in the case of driving by separate motors. There is no risk of shifting the belt running speed. Therefore, since the feeding speed of the upper surface and the lower surface of the cut product is different, it is possible to prevent a problem that the cut product is wrinkled and to improve the inspection accuracy of the cut product. In addition, since the power from the motor is transmitted to the upper transport mechanism through the universal joint, the upper transport mechanism that can be moved up and down and the stationary lower transport mechanism are driven by the power from the same motor. Can be made possible.

In the embodiment of the present invention, the transport distance measuring means is constituted by an encoder provided in the cut product transport section .

Oite the embodiment of claim 11 is, for example, moving parts of the cutting article carry section to the encoder (e.g., rotary encoder) for example a sprocket or shaft if attached to the conveying distance of the cutting products from the output of the encoder It can be measured.

  An embodiment of claim 12 of the present invention is characterized by having an ejector for discharging the cut product when the determination means determines that the cut product is defective.

  In the embodiment of the twelfth aspect, since the ejector for automatically discharging the defective cut product is provided, the defective cut product can be automatically removed from the non-defective cut product. Work can be reduced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, it goes without saying that the present invention is not limited to the examples described below.

(Basic configuration)
FIG. 3 is a schematic diagram showing the basic configuration of the cut product inspection apparatus of the present invention. This cut product inspection apparatus includes a cut product transport unit 12 that holds and transports the cut product P, two optical pass detection sensors 71a and 71b, two optical area sensors 73a and 73b, a rotary An encoder 40 (conveyance distance measuring means) and an ejector 61 are provided. The passage detection sensors 71a and 71b detect that the edge of the cut product P in the edge direction (conveyance direction) has passed, and for example, a reflective photoelectric sensor is used. The passage detection sensors 71a and 71b are arranged at intervals B along the direction perpendicular to the conveyance direction by the cut product conveyance unit 12 at the rear or rear of the cut product conveyance unit 12 in the conveyance direction.

  The area sensors 73a and 73b detect the position of the side of the cut product P in the vertical direction, and each includes, for example, a projector and a light receiver. The area sensors 73a and 73b are arranged along the direction orthogonal to the conveyance direction by the cut product conveyance unit 12 at the rear or rear of the cut product conveyance unit 12 in the conveyance direction. The area sensor 73a and the area sensor 73b are arranged such that the distance between the centers of the detection areas is D, and the detection direction of each of the area sensors 73a and 73b is orthogonal to the transport direction. Two area sensors 73a and 73b constitute a width detection sensor, and detect the length (width) in the direction orthogonal to the conveyance direction of the cut product P. Although a line sensor may be used as the width detection sensor, a case where an area sensor is used will be described below.

  The rotary encoder 40 is attached to the shaft or sprocket of the cut product conveyance unit 12 and measures the conveyance distance by the cut product conveyance unit 12 by measuring the rotation angle (number of rotations) of the shaft or sprocket. Yes.

  The ejector 61 separates the cut product P determined by the cut product inspection apparatus as a defective product from the non-defective product and discharges it.

  Therefore, according to this cut product inspection device, the length of the cut product P in the fore edge direction and the length in the vertical direction can be measured as shown in FIG. When the cut product P is sent to the cut product inspection device, when the front side of the cut product P in the conveyance direction reaches the passage detection sensor 71a and the passage detection sensor 71b, the detection light of the passage detection sensors 71a and 71b is cut. Both sensors 71a and 71b are shielded by the product P and the front side of the cut product P in the transport direction is detected. When the cut product P is transported by the cut product transport unit 12 and the side of the cut product P in the transport direction reaches the passage detection sensor 71a and the passage detection sensor 71b as shown in FIG. 3, the passage detection sensors 71a and 71b. Is turned on again, and the rear side of the cut product P in the conveyance direction is detected. Therefore, the passage detection sensors 71a and 71b detect the sides in the conveyance direction of the cut product P from the timing when the passage detection sensors 71a and 71b are turned off after detecting the sides in the conveyance direction of the cut product P, and turn on. If the transport distances La and Lb up to the timing when the value is reached are measured by the rotary encoder 40, the length of the cut product P in the fore edge direction can be known. Further, two sides located in the fore edge direction are parallel depending on whether or not the length (La) in the fore edge direction measured by the passage detection sensor 71a is equal to the length (Lb) in the fore edge direction measured by the passage detection sensor 71b. Can be determined.

Further, as shown in FIG. 3, the area sensor 73a obtains a distance Ka from the center to the side located in the top and bottom direction of the cut product P, and the area sensor 73b determines the side located in the top and bottom direction of the cut product P. If the distance Kb is obtained, the length W1 of the cut product P in the vertical direction is
W1 = D-Ka-Kb
Is required. Further, if the lengths W1 and W2 of the cut product P in the vertical direction are obtained in two places in this way, the two sides positioned in the vertical direction are parallel depending on whether the values W1 and W2 are equal. It can be judged whether or not.

Note that the distances Ka and Kb from the centers of the area sensors 73a and 73b to the side located in the top-and-bottom direction of the cut product P can be obtained from the following equations.
Ka, Kb = G × [0.5 (light shielding amount / total light shielding amount)]
Here, G is the length of the detection area of the area sensors 73a and 73b, the light shielding amount is the light shielding amount of the area sensors 73a and 73b shielded by the cut product P, and the total light shielding amount is the light shielding of the entire area sensors 73a and 73b. This is the amount of light shielding.

  However, with such a method, when the cut product P is sent in an inclined manner, the length of the cut product P in the fore edge direction or the length in the top-and-bottom direction cannot be accurately measured. Therefore, in this cut product inspection apparatus 11, the inclination of the cut product P is corrected as follows, so that the length of the cut product P in the fore edge direction and the length in the vertical direction can be accurately measured at each of two locations. Yes.

FIGS. 4A and 4B and FIGS. 5A and 5B are diagrams illustrating a method for calculating the length in the fore edge direction of the cut product P being conveyed in an inclined state. When the cut product P is conveyed at an inclination as shown in FIG. 4 (a), the front side of the cut product P in the conveyance direction is first detected by the passage detection sensor 71b, and then, as shown in FIG. 4 (b), The front side in the transport direction of the cut product P is detected by the passage detection sensor 71a. At this time, if the rotary encoder 40 measures the distance δ transported of the cut product P from when the side in front of the cut product P is detected by the passage detection sensor 71b until it is detected by the passage detection sensor 71a, The angle θ at which the front side of the cut product P in the transport direction is inclined from the direction perpendicular to the transport direction is:
θ = arctan (δ / B)
More demanded. Here, B is the distance between the passage detection sensors 71a and 71b.

When the cut product P is further transported, as shown in FIG. 5A, the rear side of the cut product P in the transport direction is detected by the passage detection sensor 71b. The rotary encoder 40 determines a distance Lb in which the cut product P is conveyed from when the front side of the cut product P is detected by the passage detection sensor 71b to when the rear side of the cut product P is detected by the passage detection sensor 71b. Using the inclination θ, the length of the cut product P in the fore edge direction is
Lb ′ = Lb × cos θ
It is calculated from.

When the cut product P is further transported, as shown in FIG. 5B, the rear side of the cut product P in the transport direction is detected by the passage detection sensor 71a. The rotary encoder 40 determines a distance La in which the cut product P is conveyed from when the front side of the cut product P is detected by the passage detection sensor 71a to when the rear side of the cut product P is detected by the passage detection sensor 71a. The length in the fore edge direction in another part of the cut product P using the inclination θ is
La ′ = La × cos θ
It is calculated from.

  Further, by comparing the lengths La ′ and Lb ′ in the fore edge direction, it can be determined whether or not two sides facing each other in the fore edge direction are aligned in parallel.

FIGS. 6A and 6B are diagrams illustrating a method of calculating the vertical length of the cut product P being conveyed in an inclined state. If the width W1 in the direction perpendicular to the conveyance direction is measured by the area sensors 73a and 73b at a position where the cut product P has been conveyed inclined as shown in FIG. 6A, the cutting is performed using the inclination θ. The length of product P in the vertical direction is
W1 ′ = W1 × cosθ
It is calculated from.

Similarly, as shown in FIG. 6B, if the width W2 in the direction orthogonal to the conveying direction is measured by the area sensors 73a and 73b at different locations of the cut product P, the cut product is obtained using the inclination θ. The length of P in the vertical direction is
W2 ′ = W2 × cosθ
It is calculated from.

  Further, by comparing the lengths W1 ′ and W2 ′ in the vertical direction, it can be determined whether or not two sides facing each other in the vertical direction are aligned in parallel.

  FIG. 7 is a block diagram illustrating a configuration of a determination unit 81 (determination unit) for determining whether the cut product P is good or bad based on the measurement values La, Lb, W1, and W2. The determination unit 81 includes a conveyance direction length measurement unit 82, an inclination calculation unit 83, an orthogonal direction length measurement unit 84, a fore edge direction length calculation unit 85, a top and bottom direction length calculation unit 86, a fore edge direction length determination unit 87, It comprises a fore edge direction parallelism determining unit 88, a top and bottom direction length determining unit 89, a top and bottom direction parallelism determining unit 90, and an output unit 91. The determination unit 81 includes a microprocessor, an electronic circuit, an electric circuit, and the like.

  The conveyance direction length measurement unit 82 is configured so that the passage detection sensor 71a is turned from on to off, and from the off to on when the front side and the rear side in the conveyance direction of the cut product P pass through the passage detection sensor 71a. The switching timing is detected, and the length La in the transport direction of the cut product P at the position of the passage detection sensor 71a is detected based on the moving distance La of the cut product P measured by the rotary encoder 40 during that time. Similarly, the conveyance direction length measuring unit 82 determines that the passage detection sensor 71b is turned off from on and off when the front side and the rear side in the conveyance direction of the cut product P pass the passage detection sensor 71b. The timing of switching from ON to OFF is detected, and the length Lb in the conveyance direction of the cut product P at the position of the passage detection sensor 71b is detected based on the moving distance Lb of the cut product P measured by the rotary encoder 40 during that time.

  The inclination calculation unit 83 detects the timing at which the passage detection sensors 71a and 71b are switched from on to off when the front side in the conveyance direction of the cut product P passes through the passage detection sensors 71a and 71b. The inclination θ of the cut product P = arctan (δ / B) is calculated on the basis of the movement distance δ of the cut product P measured in step (1).

  When the cut product P passes between the area sensors 73a and 73b, the orthogonal direction length measuring unit 84 determines the lengths W1 and W2 of the cut product P in the direction orthogonal to the transport direction at two locations of the cut product P. measure.

  The fore edge length calculation unit 85 is based on the inclination θ of the cut product P calculated by the inclination calculation unit 83 and the lengths La and Lb in the conveyance direction of the cut product P measured by the conveyance direction length measurement unit 82. The lengths La ′ = La × cos θ and Lb ′ = Lb × cos θ of the cut product P are calculated.

  The vertical direction length calculation unit 86 has a length W1 in the direction orthogonal to the inclination θ of the cut product P calculated by the inclination calculation unit 83 and the conveyance direction of the cut product P measured by the orthogonal direction length measurement unit 84. Based on W2, the lengths W1 ′ = W1 × cos θ and W2 ′ = W2 × cos θ of the cut product P are calculated.

  The fore edge length determination unit 87 compares the fore edge lengths La ′ and Lb ′ calculated by the fore edge length calculator 85 with the fore edge length previously input from the operation panel or the like, It is determined whether or not the calculated values La ′ and Lb ′ are within a predetermined allowable range. If the calculated values La ′ and Lb ′ are within the allowable range, it is determined that the size is cut in the correct fore edge direction, and an OK signal is output. If it is outside, an NG signal is output.

  The edge direction parallelism determination unit 88 compares the edge direction lengths La ′ and Lb ′ calculated by the edge direction length calculation unit 85, and if the error is smaller than a predetermined value, the edge direction parallelism determination unit 88 It is determined that the opposite sides are parallel, and an OK signal is output. If it is greater than a predetermined value, an NG signal is output.

  The top / bottom direction length determination unit 89 compares the top / bottom direction lengths W1 ′ and W2 ′ calculated by the top / bottom direction length calculation unit 86 with the top / bottom direction lengths input in advance from the operation panel or the like. It is determined whether or not W1 ′ and W2 ′ are within a predetermined allowable range. If they are within the allowable range, it is determined that the dimensions are cut in the correct vertical direction, and an OK signal is output. If there is, an NG signal is output.

  The vertical direction parallelism determination unit 90 compares the vertical direction lengths W1 ′ and W2 ′ calculated by the vertical direction length calculation unit 86, and if the error is smaller than a predetermined value, the vertical direction of the cut product P is compared with the vertical direction. It is determined that the opposite sides are parallel, and an OK signal is output. If it is greater than a predetermined value, an NG signal is output.

  The output unit 91 operates the ejector 61 when the outputs of the fore edge direction length determination unit 87, the fore edge direction parallelism determination unit 88, the top and bottom direction length determination unit 89, and the top and bottom direction parallelism determination unit 90 are all OK. The cut product P is allowed to pass through, but the output is NG even if any one of the edge direction length determination unit 87, the edge direction parallelism determination unit 88, the top and bottom direction length determination unit 89, and the top and bottom direction parallelism determination unit 90 is output. If so, it is determined that the cut product P is a defective product, and the ejector 61 is operated to discharge the cut product P to the outside.

  Therefore, according to the cut product inspection device of the present invention, even when the cut product P is conveyed in an inclined state, it is possible to accurately detect the dimensions and parallelism and to discharge the defective cut product P. .

  Note that various modifications of the cut product inspection device of the present invention are possible. For example, in the above embodiment, the inclination θ of the cut product P is calculated from the timing when the front side of the cut product P in the transport direction passes through the passage detection sensors 71a and 71b and the moving distance δ therebetween. The inclination θ of the trimmed product P may be calculated from the timing at which the rear edge in the direction passes the passage detection sensor 71a and the moving distance δ therebetween. However, when the inclination of the cut product P is obtained at the rear side in the conveyance direction of the cut product P, the cut product P is calculated from the timing at which the inclination is calculated, as compared with the case where the inclination is obtained at the front side in the conveyance direction. The time until it reaches the ejector 61 is shortened. As a result, there are disadvantages that the inspection quantity per minute of the cut product P is reduced, the distance between the passage detection sensors 71a and 71b and the ejector 61 is increased, and the cut product inspection apparatus is enlarged. Therefore, it is desirable to calculate the inclination θ of the cut product P at the front side in the transport direction.

  In the above embodiment, the passage detection sensors 71a and 71b are arranged in the direction orthogonal to the conveyance direction, and the area sensors 73a and 73b are arranged in the direction orthogonal to the conveyance direction. However, they should not be parallel to the conveyance direction. For example, it may be arranged in a direction inclined from a direction orthogonal to the transport direction. However, if it is arranged in a direction orthogonal to the transport direction, the arithmetic expression for obtaining the inclination θ and the like becomes simple.

  In the above embodiment, the length in the fore edge direction, the parallelism of the side located in the fore edge direction, the length in the top and bottom direction, and the parallelism in the side located in the top and bottom direction are examined, but depending on the structure of the three-way cutter Any inspection may be omitted. For example, in the case of a model in which the cutting blades on both sides fall simultaneously and cut, the inspection of the parallelism of the sides positioned in the vertical direction may be omitted.

(Detailed structure of the cut product inspection device)
Next, the detailed structure of the cut product inspection apparatus as described above will be described. FIG. 8 is a schematic left side view showing the internal structure of the cut product inspection apparatus 11 according to the present invention, and mainly shows the cut product transport section 12 for the cut product. FIG. 9 is a schematic plan view of the cut product inspection apparatus 11 according to the present invention. FIG. 10 is a schematic front view showing the internal structure of the cut product inspection apparatus 11 according to the present invention, and mainly shows the arrangement of the passage detection sensor and the width detection sensor for detecting the side of the cut product. FIG. 11 is a schematic rear view showing the internal structure of the cut product inspection apparatus 11 according to the present invention, and mainly shows a defective product ejector and a power transmission mechanism. FIG. 12 is a schematic right side view showing an internal structure of the cut product inspection apparatus 11 according to the present invention, mainly showing a power transmission mechanism. FIG. 13 is a schematic rear view in which the ejector is omitted. FIGS. 14A and 14B are diagrams for explaining the operation of the ejector. In the cut product inspection apparatus 11, the cut product P is sent from the front side and sent from the back side.

  First, the cut product conveying unit 12 for cut products will be described. As shown in FIG. 8, the cut product conveyance unit 12 includes an upper conveyance mechanism unit 13 and a lower conveyance mechanism unit 14, and is flattened with the cut product P sandwiched between the upper conveyance mechanism unit 13 and the lower conveyance mechanism unit 14. It is held and conveyed while holding so that the direction of the cut product P does not change.

  The lower transport mechanism unit 14 is configured by a rubber lower timing belt (toothed belt) 17 suspended between lower timing pulleys 15 and 16 provided in the front and rear in the transport direction. The lower timing belt 17 may be provided as a pair of left and right as shown in FIGS. 10 and 11, but may be three or more. Further, the lower timing belt 17 is pressed by the lower idler pulley 18 to remove the slack of the lower timing belt 17.

  The lower timing belt 17 is exposed from between the base plates 19, and the upper surface of the lower timing belt 17 is flush with the upper surface (conveying surface) of the base plate 19 or slightly protrudes from the upper surface of the base plate 19. The lower surface of the lower timing belt 17 that travels between the lower timing pulleys 15 and 16 is supported by a backup plate (not shown) so that the lower timing belt 17 does not sag on the upper surface.

  The upper transport mechanism unit 13 is supported by a mechanical cylinder 21 fixed to the upper part of the housing 20, and the upper transport mechanism unit 13 can be moved up and down by extending and contracting the rod of the mechanical cylinder 21. In addition, the lower ends of the sliders 22 inserted into the pair of holders 23 fixed to the housing 20 are coupled to the upper surface of the upper transport mechanism unit 13 so that the upper transport mechanism unit 13 is maintained in a horizontal posture while being raised and lowered. It can be moved up and down smoothly.

  In the upper transport mechanism 13, a pair of front timing pulleys 25 and 26 and an upper timing pulley 27 positioned above the front and rear timing pulleys 25 and 26 are provided on both sides of the frame 24 supported by the mechanical cylinder 21. A rubber upper timing belt 28 is wound around each upper timing pulley 25, 26, 27. The left and right upper timing belts 28 respectively oppose the left and right lower timing belts 17 of the lower transport mechanism unit 14. Therefore, the cut product P can be transported by sandwiching the cut product P between the upper timing belt 28 of the upper transport mechanism unit 13 and the lower timing belt 17 of the lower transport mechanism unit 14. Further, the upper timing belt 28 is pressed by upper idler pulleys 29 provided on both side surfaces of the frame 24 to remove the slack of the upper timing belt 28.

  A plurality of (two in the illustrated example) belt pressers 30 are provided on both side surfaces of the frame 24 in the conveying direction, and the upper timing belt 28 has a belt presser 30 at a portion facing the lower timing belt 17. Is pushed downward by The belt presser 30 includes a tension plate 31 fixed to both side surfaces of the frame 24, two shafts 32 slidably inserted in the tension plate 31, and a press plate 33 fixed to the lower ends of both shafts 32. The compression spring 34 is interposed between the tension plate 31 and the push plate 33.

  The drive mechanism of the lower transport mechanism unit 14 is shown in FIGS. As shown in FIG. 13, the left and right lower timing pulleys 15 positioned forward in the conveyance direction are fixed to the same shaft 35 and are rotated at the same rotational speed. The shaft 35 is supported by the housing 20 through a bearing 36, and a first sprocket 37 is attached to the end of the shaft 35 outside the housing 20. As shown in FIG. 10, the left and right lower timing pulleys 16 located rearward in the transport direction are fixed to the same shaft 38 and are rotated at the same rotational speed. The shaft 38 is supported by the housing 20 via a bearing 39, and a rotary encoder 40 (conveyance distance measuring means) is attached to the end of the shaft 38.

  The driving mechanism of the upper transport mechanism unit 13 is also shown in FIGS. As shown in FIG. 13, the left and right upper timing pulleys 25 positioned in front of the conveyance direction are fixed to both ends of the shaft 41 supported by the frame 24 and are rotated at the same rotational speed. Further, the upper timing pulley 27 located above is fixed to both ends of the shaft 43 supported by the frame 24, and is rotated at the same rotational speed. As shown in FIG. 10, the left and right upper timing pulleys 26 located rearward in the transport direction are fixed to both ends of the shaft 42 supported by the frame 24, and are rotated at the same rotational speed.

  In the vicinity of the first sprocket 37, a shaft 45 is rotatably provided on the side surface of the housing 20 via a bearing 44, and a second sprocket 46 is attached to the end of the shaft 45 outside the housing 20. Yes. An idler sprocket 47 is rotatably provided on the outer surface of the housing 20 in the vicinity of the first sprocket 37 and the second sprocket 46.

  The shaft 45 of the second sprocket 46 and the shaft 41 of the upper transport mechanism section 13 are connected by a universal joint 50 having two free bending portions 48 and a spline shaft-like expansion / contraction portion 49. A rotational force can be transmitted to the shaft 41 and the upper timing pulley 25.

  As shown in FIG. 12, an electric motor 51 is installed in the lower part of the housing 20, and a motor sprocket 52, an idler sprocket 47, a first sprocket 37, and a first sprocket 37 fitted to the output shaft of the electric motor 51. A chain 53 is suspended between the two sprockets 46. Therefore, the rotational force of the electric motor 51 is transmitted to the first sprocket 37 and the second sprocket 46 through the chain 53, and the first sprocket 37 and the second sprocket 46 are rotated in the opposite directions. The rotation of the second sprocket 46 is transmitted to the upper timing pulley 25 via the universal joint 50, and the upper timing belt 28 travels between the upper timing pulleys 25, 26 and 27. The rotation of the first sprocket 37 is transmitted to the lower timing pulley 15 through the shaft 35, and the lower timing belt 17 travels between the lower timing pulleys 15 and 16.

  Since the upper timing pulley 25 and the lower timing pulley 15 rotate in opposite directions, the lower surface of the upper timing belt 28 and the upper surface of the lower timing belt 17 travel in the same direction. Here, the number of teeth of the first sprocket 37 and the number of teeth of the second sprocket 46 are determined so that the traveling speed of the upper timing belt 28 and the traveling speed of the lower timing belt 17 are equal.

  Thus, according to the cut product transport unit 12 as described above, the posture when the cut product P such as a pamphlet is sent to the cut product transport unit 12 is maintained, and at a high speed one by one ( (For example, at a rate of 250 books / minute). Further, the moving distance of the cut product P can be detected by measuring the rotation speed (rotation angle) of the shaft 38 with the rotary encoder 40.

  Hereinafter, the operation of the cut product conveyance unit 12 having the above-described structure will be described in detail. First, the height of the upper conveyance mechanism unit 13 is adjusted in accordance with the thickness of the cut product P in the cut product conveyance unit 12. For adjustment, the cut product P is placed on the base plate 19, the mechanical cylinder 21 is driven by the operation from the operation panel 54, and the upper transport mechanism unit 13 is lowered. The mechanical cylinder 21 incorporates a torque sensor (not shown), stops when the pressing force of the cut product P reaches a predetermined value, and stops the upper transport mechanism unit 13 at that position. The pressing force of the cut product P can be set in advance on the operation panel 54.

  If the pressing force of the cut product P is weak, the cut product P is shifted back and forth and left and right while the cut product P is being transported by the cut product transport unit 12, and the moving distance of the cut product P cannot be measured accurately. There is a possibility that the angle of the cut product P is inclined. Further, if the pressing force of the cut product P is too strong, the cut product P may be distorted or a trace of the belt may remain. In the cut product inspection apparatus 11 of the present invention, the pressing force of the cut product P can be set to an appropriate value, and the upper timing belt 28 of the upper transport mechanism unit 13 and the lower timing belt 17 of the lower transport mechanism unit 14 are set. The cut product P can be held with an appropriate holding force, and there is no risk of the cut product P moving or being distorted during transportation, improving the inspection accuracy and reliability of the cut product P. Can be made.

  In the cut product inspection device 11 of the present invention, the upper timing pulley 25 and the lower timing pulley 15 are driven by one electric motor 51 in order to ensure the synchronization of the rotation of the upper timing pulley 25 and the lower timing pulley 15. However, since the shaft 45 of the second sprocket 46 and the shaft 41 of the upper timing pulley 25 are connected by the universal joint 50, the second sprocket can be operated by a simple mechanism regardless of the height of the upper transport mechanism 13. Power can be reliably transmitted from 46 to the upper timing pulley 25.

  Since the mechanical cylinder 21 is used instead of the air cylinder as the power for raising and lowering the upper conveyance mechanism unit 13, the upper conveyance is performed even when the cut product P is not sandwiched between the upper timing belt 28 and the lower timing belt 17. The mechanism 13 does not descend, and a predetermined gap is maintained between the upper timing belt 28 and the lower timing belt 17. Therefore, the cut product P can smoothly enter between the upper timing belt 28 and the lower timing belt 17. Further, when the cut product P enters between the upper timing belt 28 and the lower timing belt 17 or when the cut product P escapes, the cut product P can be held with a constant pressing force.

  Further, since the lower traveling portion of the upper timing belt 28 is pressed by a plurality of belt pressers 30, the cut product P can be pressed by the upper timing belt 28 between the upper timing pulleys 25 and 26, and the cutting is performed. Even if the thickness of the product P is not uniform, the belt presser 30 can follow the upper and lower sides and can be pressed with a substantially uniform pressing force.

  Furthermore, since the lower timing pulleys 15 and 16 and the upper timing pulleys 25, 26, and 27 are connected by the shafts 35, 38, 41, 42, and 43, respectively, the rotational speeds of the left and right pulleys are not different, The angle of the cut product P does not shift during conveyance, and the cut product P can be inspected with high inspection accuracy.

  Next, an ejector 61 for discharging the cut product P determined to be a defective product will be described with reference to FIGS. 8, 11, and 14. The ejector 61 includes a rotatable upper guide plate 55 and a lower guide plate 56. The upper guide plate 55 and the lower guide plate 56 are attached to the rotation shaft 57 so as to sandwich the rotation shaft 57 from above and below, and the rear end edge of the upper guide plate 55 and the rear end edge of the lower guide plate 56 are Touching so that there is no gap. Alternatively, the upper guide plate 55 and the lower guide plate 56 may be formed by bending a single plate into two. Both ends of the rotation shaft 57 are rotatably supported by the housing 20 via bearings 58. The upper guide plate 55 and the lower guide plate 56 are rotated together with the rotation shaft 57, and the position where the upper guide plate 55 is horizontal as shown in FIG. 14 (a) and the position shown in FIG. 14 (b). Thus, the lower guide plate 56 can be rotated between the positions protruding upward.

  As shown in FIG. 8, a tension spring 62 is stretched between a shaft clamp 59 attached to the rotating shaft 57 and a bracket 60 fixed to the housing 20, and an upper guide plate 55 and a lower guide plate 56. Is elastically biased so as to stop in a state where the upper guide plate 55 is horizontal. As shown in FIGS. 11 and 14, a shaft clamp 63 is attached to the rotation shaft 57, and the shaft clamp 63 is connected to the tip of a rod 65 driven by an electromagnetic solenoid 64.

  Accordingly, in the ejector 61, normally, as shown in FIG. 14A, the electromagnetic solenoid 64 is turned off and the upper guide plate 55 is in a horizontal state. Therefore, the cut product P that has passed through the cut product inspection apparatus 11 passes over the ejector 61 and is sent to the next process. At this time, the stopper 66 provided on the rod 65 contacts the electromagnetic solenoid 64, so that the upper guide plate 55 is positioned so as to be horizontal.

  On the other hand, when an NG signal is output from the output unit 91 of the determination unit 81, the electromagnetic solenoid 64 is turned on and the rod 65 is pulled, thereby rotating the rotating shaft 57 and rotating the rotating shaft 57 (FIG. 14B). In this way, the lower guide plate 56 pops up, and the defective cut product P that has passed through the cut product inspection device 11 collides with the lower guide plate 56 and is discharged downward. When the defective product is discharged, the electromagnetic solenoid 64 is immediately turned off, and the upper guide plate 55 is quickly returned to the horizontal position by the tensile force of the tension spring 62.

  According to the ejector 61 having such a structure, the upper guide plate 55 and the lower guide plate 56 can be driven at a high speed, and it is possible to sort out about 250 non-defective products and defective products about 250 pieces per minute. Become.

  Next, the structures of the passage detection sensors 71a and 71b and the width detection sensor 72 will be described. The passage detection sensors 71a and 71b are reflection type photoelectric sensors, and the reflection mirrors 74a and 74b are positioned immediately below the photoelectric sensors. The passage detection sensor 71a and the reflection mirror 74a, the passage detection sensor 71b, and the reflection mirror 74b are arranged at a distance B in a direction orthogonal to the conveyance direction, and are fixed to the rear of the cut product conveyance unit 12 in the conveyance direction. .

  The width detection sensor 72 includes two sets of area sensors 73a and 73b, and the area sensor 73a and the area sensor 73b are arranged such that the distance between the centers of the respective detection regions is D. Each of the area sensors 73a and 73b includes a light projecting unit 75 and a light receiving unit 76, and the light projecting unit 75 and the light receiving unit 76 are fixed to the top and bottom of the mounting frame 77a. The area sensors 73a and 73b (or the light projecting unit 75 and the light receiving unit 76) have a length G detection region. Accordingly, even if the cut product P is displaced in the range of the length G in the direction orthogonal to the transport direction, the position of the side of the cut product P that is positioned in the top-and-bottom direction can be detected.

  The area sensors 73a and 73b attached to the attachment frame 77a can be adjusted in position in the direction orthogonal to the transport direction by the structure shown in FIG. That is, two sliders 78b are slidably attached to a guide rail 78a extending in a direction orthogonal to the transport direction, and two female screw members 79b are provided on a screw shaft 79a arranged in parallel to the guide rail 78a. It is inserted. Male screws are formed on both sides of the screw rod 79a so as to be opposite to each other, and female screw members 79b provided on both sides of the screw rod 79a move in opposite directions when the screw shaft 79a is rotated. It is configured. The left and right female screw members 79b, the slider 78b, and the mounting frame 77a are integrally coupled by a coupling plate 77b.

  Therefore, the distance between the left and right area sensors 73a and 73b can be adjusted by rotating the screw shaft 79a, and the position of the detection area of the area sensors 73a and 73b is adjusted in advance according to the width of the cut product P. I can leave.

  As means for adjusting the positions of the area sensors 73a and 73b, the screw shaft 79a is rotated by turning the handle 80a by hand. At this time, the distance between the area sensors 73a and 73b is displayed on a meter (not shown) provided on the surface of the motor case 80b.

  When the distance between the area sensors 73a and 73b is input from the operation panel 54, the positions of the area sensors 73a and 73b are automatically adjusted by the motor in the motor case 80b.

  When the cut product P is placed on the lower transport mechanism 14 and the automatic setting button on the operation panel 54 is pressed, the positions of the area sensor 73a and the area sensor 73b are automatically adjusted according to the cut product P.

  The area sensors 73 a and 73 b used here project a plurality of parallel lights (detection lights) in a direction perpendicular to the base plate 19. In the case of a type that scans one detection light, an error occurs depending on the thickness of the cut product P because the detection light is projected obliquely on the edge of the cut product P. If there is no such error, the inspection accuracy can be improved.

It is the schematic explaining a mode that a pamphlet is cut with a three-way cutting machine. It is a schematic diagram explaining the conventional cutting product inspection apparatus. It is the schematic showing the basic composition of the cut product inspection device of the present invention. (A) And (b) is a figure explaining the method of calculating the inclination of the cutting goods conveyed in the inclined state. (A) And (b) is a figure which shows the method of calculating the length of the edge direction of the cut goods currently conveyed in the inclined state. (A) And (b) is a figure which shows the method of calculating the length of the vertical direction of the cut goods currently conveyed in the inclined state. It is a block diagram which shows the structure of the determination part for determining the quality of a cut product. It is a schematic left view which shows the structure inside the cutting product inspection apparatus which concerns on this invention. It is a schematic plan view which shows the structure inside the cutting product inspection apparatus which concerns on this invention. It is a schematic front view which shows the structure inside the cutting product inspection apparatus which concerns on this invention. It is a schematic rear view which shows the structure inside the cutting product inspection apparatus which concerns on this invention. It is a schematic right view which shows the structure inside the cutting product inspection apparatus which concerns on this invention. It is a schematic rear view which abbreviate | omits and shows an ejector. (A) And (b) is operation | movement explanatory drawing of an ejector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Cut product inspection apparatus 12 Cut product conveyance part 13 Upper conveyance mechanism part 14 Lower conveyance mechanism part 17 Lower timing belt 21 Mechanical cylinder 28 Upper timing belt 30 Belt clamp 40 Rotary encoder 50 Universal joint 51 Electric motor 54 Operation panel 55 Upper guide Plate 56 Lower guide plate 61 Ejector 64 Electromagnetic solenoid 71a, 71b Passing detection sensor 72 Width detection sensor 73a, 73b Area sensor 75 Light projecting unit 76 Light receiving unit 81 Judging unit P Cutting product

Claims (12)

A cut product transport section for transporting the cut product;
A width detection sensor for detecting a length of a predetermined straight line extending in a direction not parallel to the cutting product conveyance direction and passing the cutting product ;
A transport distance measuring means for measuring the transport distance of the cut product;
A passage detection sensor that detects that the front and rear sides of the cut product have passed, and
And when detecting that the transport direction front and rear sides of the cross-sectional Court article has passed the pre-Symbol passing over sensor by the passage detecting sensor, the conveyance distance measurement signal of the cutting article by the conveyance distance measuring means, the width Based on a straight line passing length that is a length that a predetermined straight line extending in a direction not parallel to the conveyance direction of the cut product detected by the detection sensor passes through the cut product, the front side or the rear side of the cut product in the conveyance direction Calculating means for calculating the width of the cut product in a direction parallel to the cut and determining whether the cut product is good or bad depending on whether the calculated width of the cut product is within a predetermined range ;
A cutting product inspection device characterized by comprising: Having said width detection sensor for detecting the length of a given straight line extending in a direction not parallel to the conveying direction of the cutting article passes through the cutting article at a plurality of locations of the cutting products,
It said determining means, the timing of the transport direction front and rear sides of the cutting article is detected by the passage detecting sensor that has passed through the pre-Symbol passing over detection sensor, the conveyance distance measurement signal of the cutting article by the conveyance distance measuring means And whether the side edges that are substantially parallel to the conveyance direction of the cut product are parallel to each other based on the straight line passing lengths at two locations of the cut product detected by the width detection sensor. The cut product inspection device according to claim 1 , wherein the cut product is determined to be defective. The width detection sensor is characterized in that the detection region is constituted by two line sensor or area sensor arranged in the predetermined straight line, cutting goods inspection apparatus according to claim 1 or 2. The cutting product inspection device according to claim 3 , wherein the line sensor or the area sensor can be adjusted in a direction parallel to the predetermined straight line. Are arranged along a direction not parallel to the conveying direction of the cross-sectional Court products, each having a plurality of said passage detection sensor for detecting that the transport direction front and rear sides of the cutting article has passed,
The determination means includes a timing at which the passage detection sensor detects that the front and rear sides in the conveyance direction of the cut product have passed through the passage detection sensors, and a conveyance distance measurement signal of the cut product by the conveyance distance measurement unit, based on, characterized by the Turkey to determine the good or defective of the cutting products, cutting goods inspection apparatus according to any one of claims 1 to 4. The determination means includes a timing at which the passage detection sensor detects that the front and rear sides in the conveyance direction of the cut product have passed through the passage detection sensors, and a conveyance distance measurement signal of the cut product by the conveyance distance measurement unit, Based on the above, the length of the cut product in the direction perpendicular to the front or rear side of the cut product is calculated, and the quality of the cut product depends on whether or not the calculated length of the cut product is within a predetermined range. 6. The cut product inspection device according to claim 5 , wherein a defect is determined. The determination means includes a timing at which the passage detection sensor detects that the front and rear sides in the conveyance direction of the cut product have passed through the passage detection sensors, and a conveyance distance measurement signal of the cut product by the conveyance distance measurement unit, Based on the above, it is determined whether the front side in the transport direction of the cut product and the rear side in the transport direction are parallel, and if not, it is determined that the cut product is defective. The cut product inspection device according to claim 5 or 6 . The cutting article transport unit may be transported in the transport direction while holding the cut product, the cutting goods inspection apparatus according to any one of claims 1 to 7. The cut product transport unit includes an upper transport mechanism unit having an upper timing belt for transporting a cut product from above and below, and a lower transport mechanism unit having a lower timing belt, and the upper transport mechanism unit has a torque. The cut product inspection device according to any one of claims 1 to 8 , wherein the cut product inspection device is supported by a mechanical cylinder including a sensor so as to be movable up and down. The upper transport mechanism and the lower transport mechanism are driven by power from the same motor so that the traveling speed of the upper timing belt and the traveling speed of the lower timing belt are equal. The cutting product inspection device according to claim 9 , wherein power from the motor is transmitted via the cutting device. The conveying distance measuring means, characterized in that it is constituted by an encoder provided on the cutting article transport unit, cutting goods inspection apparatus according to any one of claims 1 to 9. The determination means is characterized in that it comprises an ejector for discharging the cut products when it is determined cutting product to be defective, cutting goods inspection apparatus according to any one of claims 1 to 10.

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