JP5023670B2 - Box making equipment - Google Patents

Description

  The present invention relates to a box making apparatus for inspecting a blank conveyed to a box making unit.

As the quality inspection of the printed matter to be boxed, the printing press is provided with an inspection device, and when the printed matter is discharged from the printing press, the non-defective printed matter and the defective printed matter are separated and discharged.
However, printed products that have become non-defective products are subject to scratches, dirt, sticking of scraps, misalignment of the cutting position, etc. during the cutting and creasing process using a wooden frame. Was needed. In particular, in boxes (boxes) that contain food, it was necessary to avoid contamination of foreign matters such as cutting waste. Furthermore, boxes used for pharmaceuticals and the like are strongly required to eliminate not only foreign matters but also blanks with red print defects and red deposits reminiscent of blood that causes infection as defective products.

  Therefore, a large number of blanks cut and crooked by the wooden frame are stacked on the supply unit, conveyed one by one from the supply unit to the conveyance unit, and the blank conveyed on the conveyance belt provided in the conveyance unit is inspected. The blank is inspected for quality by a blank inspection apparatus that classifies the blank into a non-defective blank and a defective blank (see, for example, Patent Document 1).

After that, only blanks that have been determined to be non-defective by the blank inspection device are stacked on the feeding unit of the box making device, the blanks are taken out one by one, supplied to the box making unit, folded, glued, glued, Blanks are made by folding the bottom.
JP-A-9-315613

  However, blank inspection requires a blank supply device and a transport device for inspecting the blank, which not only requires the cost of these devices, but also requires a space for installing the blank inspection device. It is difficult to use the space effectively, and the indirect cost of the blank inspection apparatus is also required.

  Furthermore, there is a considerable possibility that scratches, dirt, foreign matter, etc. may be attached during the work after the blank inspection is completed until the inspected blank is supplied to the box making apparatus. In addition, when the blanks are taken out one by one from the supply unit of the box making apparatus, scratches may occur in the blanks.

  On the other hand, it is possible to perform only the inspection in the boxed state without performing the blank inspection, but it is not only difficult to inspect the inner surface side of the box after being boxed, When there is red dirt near the glued or folded part, it is more difficult to detect this red dirt, and there are some inspections that can only be detected in the blank state. It was not realistic to omit the inspection.

  In view of the problem, the present invention has an object to provide a box making apparatus that performs a blank inspection when box making.

Manufacturing box making apparatus according to the present invention, which includes a conveying unit for conveying the paper feed unit in which a plurality of blanks attached cutting and muscle are stacked, and a blank to be fed by the feeding unit to Seihako portion A box device,
Imaging means for imaging the both sides of the blank supplied from the transport unit,
Comparison means for comparing the image to be inspected imaged by the imaging means with a blank master image to be inspected,
When the comparison value by the comparison means is greater than or equal to a preset tolerance value, a blank inspection unit comprising a defect detection means for detecting a location greater than the tolerance value as a defect location ,
The conveying unit takes out blanks stacked on the paper feeding unit one by one from the bottom, an adjacent conveying belt with a gap on the downstream side in the conveying direction of the removing belt, and an upper surface of the removing belt A suction belt that is provided over the upper surface of the transport belt and sucks and transports the upper surface of the blank;
The imaging means is provided above the take-out belt, and images the upper surface side of the blank conveyed on the take-out belt using the area between the slider of the paper feeding unit and the suction belt as an image area. The lower surface side of the blank that is provided below the suction belt and is transported in a state where the upper surface side is attracted to the suction belt is imaged using the region between the take-out belt and the transport belt as an imaging region. And a second imaging means .
Therefore, since the inspection is performed before the blank fed from the paper feeding unit is conveyed to the box making unit, the blank inspection immediately before the box making can be performed for the first time. Moreover, since the blank imaged by the imaging means is conveyed to the box making unit, it is possible to prevent the occurrence of scratches when passing through the slider of the paper feeding unit without requiring a paper feeding process again.

  The blank inspection unit may be unitized together with a paper feeding unit and a conveyance unit.

Provided the image pickup means in said box-making unit, may capture both surfaces of the blank to be transported the box making portion.

The box making apparatus according to the present invention as described above obtains a box making apparatus capable of inspecting the blank because the box making process is performed after the blank conveyed from the paper feeding unit to the box making unit is inspected. be able to. That is, the conventional blank inspection apparatus that performs only blank inspection is not required, and the cost and space of the blank inspection apparatus are not required. In particular, in the past, there were two transport processes, a transport process at the time of blank inspection and a transport process at the time of box making. In the present invention, since this transport process can be combined into one, the equipment necessary for the transport process Advantages such as cost reduction by unifying the equipment, omission of installation space by unifying equipment, and omission of work time by unifying the transport process can be obtained. That is, it is possible to reduce direct and indirect costs by the blank inspection apparatus.
Further, since the blank after passing through the slider of the paper feeding unit is inspected, it is possible to detect a scratch on the blank that occurs when passing through the slider, and it is possible to perform inspection with higher accuracy.

Since imaging the top surface of the blank which is thus transported to the take-out belts, it is possible to inspect the upper surface of the blank taken out from the paper feed unit.

Since imaging the lower surface of the blank which is thus sucked to the suction belts, it is possible to inspect the underside of the blanks taken out from the paper feed unit. Further, since the upper surface of the blank is sucked and held, the blank is displaced and the inspection accuracy is not lowered.

An imaging means is provided below the suction belt , and both sides or one side of the blank can be imaged and inspected from the gap between the take-out belt and the conveyor belt . In particular, in the case of a transparent or translucent blank, the background can be made uniform by a background plate or illumination means, the influence of the background can be eliminated, and a highly accurate inspection can be performed.

  Since the blank inspection unit is unitized with the paper feeding unit and the conveyance unit, the unit can be connected to an existing box making apparatus. Therefore, an existing box making apparatus can be provided with a blank inspection function at a low cost. That is, it is possible to make a box making apparatus having an inspection function without replacing an expensive box making apparatus.

Included in the imaging means Seihako unit, since the imaging of both surfaces of the blank being conveyed Seihako portion, it is possible to inspect the scratches generated during Seihako.

A box making apparatus according to the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view of a box making apparatus 1 in which an inspection unit 17 unitized with a blank inspection unit, a paper feeding unit 13 and a transport unit 2 is arranged in an existing box making apparatus 18.
In the figure, 1 is a box making apparatus, 2 is a transport unit, 4 is a blank, 5 is an imaging means, 6 is an illumination means, 7 is a take-out belt, 8 is an adsorption belt, 9 is a transport belt, 10 is a sorting means, and 11 is a slider. , 12 is a stacking unit, 13 is a paper feeding unit, 17 is an inspection unit, 18 is an existing box making device, and 26 is a slider provided in the existing box making device.
The inspection unit 17 and the existing box making apparatus 18 are connected by connecting means (not shown), and are integrated during operation as a box making apparatus.

  As shown in FIG. 1, the box making apparatus 1 according to the present invention includes a plurality of blanks 4,... It is taken out. When the taken-out blank 4 is conveyed on the take-out belt 7, the upper surface thereof is imaged by the imaging means 5a. When the blank 4 is transported to the suction belt 8, the upper surface of the blank 4 is sucked by the suction belt 8, and the lower surface side of the blank 4 is imaged by the imaging unit 5 b and transported to the transport belt 9. The blanks 4 conveyed one by one by the conveying belt 9 are folded, glued, glued, glued at the bottom, etc. by the existing box making device 18, and the non-defective product and the defective product are separated by the sorting means 10. They are sorted and conveyed to the stacking unit 12.

The inspection unit 17 includes a blank inspection unit, a paper feeding unit 13, and a transport unit 2. Further, the existing box making apparatus 18 as the box making unit 3 makes a box while conveying the blanks 4 conveyed one by one from the inspection unit 17 and classifies the good products and the defective products.
The conveyor belt 9 is a take-out belt of a paper feeding unit provided in an existing box making apparatus 18. That is, since the blanks 4 are conveyed one by one from the inspection unit 17, it is not necessary to use the slider 26 of the paper feed unit provided in the existing box making device 18, and the feeding of the existing box making device 18 is not necessary. The paper take-out belt 9 is used as a conveying belt. In addition, you may convey the blank 4 conveyed from the test | inspection unit 17 to the conveyance part of the existing box making apparatus 18. FIG.

  As shown in FIG. 1, the upper surface of the blank 4 is imaged by the imaging means 5 a provided above the take-out belt 7. An illumination unit 6 a that illuminates the imaging region of the imaging unit 5 a is also provided above the take-out belt 7.

The image pickup means 5a provided above the take-out belt 7 has a region on the upper surface side between the slider 11 of the paper feed unit 13 and the conveyance means (the suction belt 8 in FIG. 1) provided above the blank 4. The imaging area is imaged on the upper surface of the blank 4 illuminated by one or a plurality of illuminating means 6, and a conveyor belt (not shown) and a conveyor belt (not shown) disposed above the blank 4 A gap with a not-shown area can be used as an imaging region. However, as shown in FIG. 1, the upper surface of the blank 4 immediately after passing through the slider 11 can be imaged by setting the area between the slider 11 and the suction belt 8 (conveyor belt) as an imaging area. Not only can scratches caused by contact with the slider 11 be detected, but also the conveyance path length of the inspection unit 17 can be shortened.
In FIG. 1, the imaging unit 5a is disposed almost directly above the take-out belt 7. However, for example, the upper surface of the blank 4 may be imaged from obliquely above in the conveyance path direction.

  Moreover, as shown in FIG. 1, the lower surface of the blank 4 is imaged by the imaging means 5b provided under the suction belt 8 which adsorbs the blank 4 upper surface. An illumination unit 6 b that illuminates the imaging region of the imaging unit 5 b is also provided below the suction belt 8.

The image pickup means 5b provided below the suction belt 8 picks up an area between the transfer means (take-out belt 7 in FIG. 1) and the transfer means (transfer belt 9 in FIG. 1) that are in contact with the lower surface of the blank. The imaging area is imaged on the lower surface of the blank 4 illuminated by a single or a plurality of illumination means 6. In FIG. 1, the gap between the take-out belt 7 and the conveyor belt 9 is defined as an imaging region. However, the present invention is not limited to this, and the gap between the conveying means that conveys the blank 4 in contact with the lower surface of the blank 4 You can also
In FIG. 1, the imaging unit 5b is disposed almost directly below the take-out belt 7. However, for example, the lower surface of the blank 4 may be imaged from obliquely below in the conveyance path direction.

  The imaging means 5 is provided with an imaging camera such as a single or a plurality of CCD line sensors with a predetermined interval in the blank width direction. As shown in FIGS. 8 and 9, the imaging means 5 disposed below the blank 4 includes an imaging camera 51 and a reflecting plate 52, and the reflecting plate 52 has an optical axis extending substantially in the horizontal direction of the imaging camera 51. The direction of the optical axis is changed obliquely upward. In this way, by changing the direction of the optical axis of the photographing camera 51 by the reflecting plate, for example, the optical distance between the imaging camera 51 and the imaging region even in the conveyance unit 2 where the distance between the conveyance means and the floor surface is short. And the imaging region of the imaging camera 51 can be widened.

When the image is picked up by the image pickup means 5, the blank inspection unit 27, as shown in FIG. 5, multi-tone image data output from the image pickup means 5 and the master stored in the master image storage means 14. The comparison means 15 compares the density level with the image, and when the difference in density level is equal to or greater than a preset allowable value, the defect detection means 16 detects an area that is equal to or greater than the allowable value as a defect location and has a defect location. The defective product transmits a control signal to the sorting means 10 provided in the box making unit 3, and the blank 4 classified as a non-defective product by the sorting means 10 that has received the control signal is accumulated in the accumulating unit 12.
When both sides of the blank 4 are inspected, master image data on both the upper surface side and the lower surface side is stored in the master image storage means 14, and the master image on the upper surface side and the lower surface side are compared with the image to be inspected. To do.

In FIG. 1, in order to inspect both sides of the blank 4, imaging is performed using the two imaging units 5a and 5b. However, if only the printing misalignment or cutting misalignment is inspected, only one imaging unit 5 is used. It's okay.
For example, when a package design is printed on the outer surface side when the box is made and instructions are printed on the inner surface side, both the upper surface side and the lower surface side of the blank 4 are imaged by the two imaging means 5a and 5b. Then, both sides of the blank 4 are inspected.
In addition, when the package design is printed on the outer surface side when the box is made and the inner surface side is not printed, only the outer surface side is inspected. In such a case, only the imaging means 5b (or 5a) for imaging the outer surface side is provided, and only the outer surface side is imaged to inspect the blank 4. As a matter of course, imaging means 5a and 5b may be provided on the upper surface side and the lower surface side of the blank 4, respectively, and only the imaging means 5b (or 5a) on the outer surface side to be inspected may be imaged.
Further, in the case of a box for putting food inside such as a paper pack for beverages, only the inner surface side may be inspected in order to prevent the contamination of foreign matters on the inner surface side. In such a case, only the imaging means 5a (or 5b) for imaging the inner surface side is provided, and only the inner surface side is imaged to inspect the blank 4. As a matter of course, the imaging means 5a and 5b may be provided on the upper surface side and the lower surface side of the blank 4, and only the imaging means 5a (or 5b) on the inner surface side to be inspected may be imaged.

  The illuminating means 6 may be a single light source, but is embossed by illuminating the surface to be inspected of the blank 4 from multiple directions with three light sources 61, 61, 61 as shown in FIG. A high-accuracy inspection is performed so that there is no shadow on the embossed part of the blank. Even when the blank 4 has a metal foil or the like, the imaging region is illuminated from various directions, so that a glossy blank such as a metal foil or coated paper can be inspected. Note that an illumination reflector (not shown) is provided in the light source 61 to increase the amount of light applied to the surface to be inspected.

  Further, as shown in FIG. 9, the illumination means 6 has a reflecting mirror 62 whose cross-sectional shape viewed from the side surface in the width direction of the blank 4 has a shape lacking a part of an ellipse, and one focal point 63a of the ellipse. You may comprise from the internal light source 64 provided in this. In addition, the focal point 63b on the blank 4 side of the elliptical reflecting mirror 62 is disposed so as to be positioned on the inspection surface of the blank 4 or above or below the inspection surface at a predetermined distance. Further, the elliptical reflecting mirror 62 is provided with a slit 65 along the width direction of the blank 4, and imaging can be performed through the slit 65. That is, even if there is only one light source 64, the imaging region is illuminated from various directions by the elliptical reflecting mirror 62, so that a glossy blank such as a metal foil or coated paper or an embossed blank can be inspected. It can be carried out.

The suction belt 8 is provided with a suction box (not shown) on the upper surface side of the perforated belt, and sucks air from the suction box so that the blank 4 is sucked and held on the perforated belt. Since the suction belt 8 is transported to the transport belt 9 with the upper surface side of the blank 4 being sucked, the blank 4 can be prevented from fluttering and the lower surface side of the blank 4 can be accurately imaged.
Note that the blank 4 is transported by using a suction roller (not shown) instead of the suction belt 8 to suppress the flutter of the blank 4 so that the lower surface side of the blank 4 can be accurately imaged. For example, a plurality of rollers that are rotationally driven in the transport direction are disposed, and the suction roller is configured by sucking air from a gap before and after each roller.

  The blanks 4 conveyed by the suction belt 8 are conveyed one by one to an existing box making apparatus 18 and classified into box making and non-defective products and defective products.

  In this way, the inspection unit 17 transports the blanks 4 one by one to the paper feeding unit or the transport unit of the existing box making device 18, and the existing box making device 18 manufactures the blank 4 inspected on one side or both sides of the blank. As a result, the blank inspection process and the box making process can be performed with one box making apparatus 1. Furthermore, by arranging the inspection unit 17 in the existing box making apparatus 18, the existing box making apparatus 18 can be a box making apparatus capable of performing blank inspection. In other words, a box making apparatus having no inspection function can be used as a box making apparatus having an inspection function without replacing expensive box making apparatuses. Furthermore, conventionally, a blank inspection process and a box making process are performed by two apparatuses, a blank inspection apparatus and a box making apparatus. However, an inspection process and a box making process can be performed by one box making apparatus. it can. In other words, by combining them into one, the sheet feeding unit 13, the transport unit 2, and the sorting means 10 can be shared in the inspection process and the box making process, and not only can the cost required for these equipment be reduced. The installation space can be reduced.

In FIG. 1, the blank 4 is conveyed by belts such as a take-out belt 7, an adsorption belt 8, and a conveyance belt 9 as conveying means. However, as shown in FIGS. 2 and 3, conveying roller groups 25,. The blank 4 may be conveyed. The transport roller group 25 is provided with a plurality of rollers in the width direction of the blank 4 (perpendicular to the transport direction). The imaging means 5d and 5f for imaging the lower surface side of the blank 4 are provided below the roller group 25, and the blank 4 passing through the imaging area is imaged with the gap before and after the roller groups 25 and 25 as the imaging area. .
As shown in FIGS. 2 and 3, when imaging the upper surface side of the blank 4, the gap between the slider 11 of the paper feeding unit 13 and the transport belt 28 is used as an imaging area, and imaging for imaging the imaging area is performed. The means 5c and 5e are arranged on the upper surface side of the blank 4.

  As shown in FIGS. 2 and 3, guides 29 and 30 are arranged on the upper surface side and the lower surface side of the blank 4 in the conveyance path. The blank 4 is supplied from the paper supply unit at about 20 sheets per second, and the blank 4 is conveyed on the conveyance path at a high speed. Therefore, the guides 29 and 30 suppress the flutter during conveyance. 1, 4 to 6, and 8 to 10, the guides 29 and 30 are not illustrated. As a matter of course, the guides 29 and 30 are arranged outside the imaging area of the blank 4 by the imaging means 5 so as not to obstruct the imaging by the imaging means 5.

When imaging both surfaces of the blank 4, as shown in FIG. 2, the imaging means 5c and 5d are arranged so that the optical axis of the imaging means 5c on the upper surface side and the optical axis of the imaging means 5d on the lower surface side are different. Alternatively, as shown in FIG. 3, the imaging means 5e and 5f may be arranged so that the optical axis of the imaging means 5e on the upper surface side and the optical axis of the imaging means 5f on the lower surface side overlap.
As shown in FIG. 2, if the optical axes of the imaging means 5c on the upper surface side and the imaging means 5d on the lower surface side do not overlap, the photographing areas on the conveyance path are different between the upper surface side and the lower surface side. There is an advantage that the fluttering of the blank 4 can be suppressed. On the other hand, since two inspection areas are provided on the conveyance path, the conveyance path must be lengthened. However, as shown in FIG. 2, when the slider 11 is disposed in the gap between the roller groups 25, 25, the imaging means 5 d can be disposed below the slider 11. When the conveyance unit is unitized, the conveyance path direction of the blank inspection unit can be shortened, and the box making apparatus can be miniaturized.
On the other hand, as shown in FIG. 3, if the optical axes of the imaging means 5e on the upper surface side and the imaging means 5f on the lower surface side are overlapped, the imaging areas on the conveyance path overlap on the upper surface side and the lower surface side. The length of the conveyance path required for the inspection can be shortened, and the length of the inspection unit 17 (box making apparatus 1) in the conveyance path direction can be shortened.

  Moreover, as shown in FIG.4 and FIG.5, you may image the blank which passes the clearance gap between the taking-out belt 7 and the conveyance means 22 which conveys the blank 4 passed from the said taking-out belt 7. FIG.

As shown in FIG. 4, when both surfaces of the blank 4 are imaged by the imaging means 5g and 5h, the clearance between the take-out belt 7 and the transport means 22, and the transport means 20 disposed above the take-out belt 7 The conveying means 7, 20, 21, and 22 are arranged so that a gap with the conveying means 21 arranged above the conveying means 22 is continuous in the vertical direction.
The imaging unit 5g provided above the blank 4 images the upper surface of the blank 4 passing through the gap between the transport unit 20 and the transport unit 21. The imaging unit 5 h provided below the blank 4 images the lower surface of the blank 4 that passes through the gap between the take-out belt 7 and the conveying unit 22.
As shown in FIG. 4, the optical axis of the upper imaging means 5g and the optical axis of the lower illumination means 6h overlap, and the optical axis of the lower imaging means 5h and the upper illumination means 6g. When arranged so as to overlap with the optical axis, not only a blank made of an opaque material such as paper but also a blank made of a transparent or translucent material can be inspected. That is, when the transparent or semi-transparent blank 4 is inspected by the blank inspection unit shown in FIGS. 1 to 3, since the background transmitted through the blank 4 is also imaged, an accurate inspection cannot be performed. Therefore, as described above, when the upper surface of the blank 4 is inspected by disposing the imaging units 5g and 5h and the illumination units 6g and 6h, the illumination unit 6g illuminates the upper surface of the blank 4 and the illumination unit. Since the illumination light from 6h passes through the blank 4 and enters the imaging means 5g, the illumination from the illumination means 6h makes the background of the blank 4 uniform by the illumination light, eliminating the influence of the background of the blank 4, and transparent or The upper surface of the translucent blank 4 can be inspected. Further, in the inspection of the lower surface of the blank 4, as with the upper surface inspection, the illumination unit 6h illuminates the lower surface of the blank 4, and the illumination light from the illumination unit 6g passes through the blank 4 and enters the imaging unit 5h. The background of the blank 4 is made uniform by the illumination light by the illumination from the illuminating means 6g, the influence of the background of the blank 4 is eliminated, and the lower surface of the transparent or translucent blank 4 can be inspected.
When only the upper surface of the blank 4 is inspected, the upper imaging means 5g, the upper illuminating means 6g, and the lower illuminating means 6h are arranged, and when only the lower surface of the blank 4 is inspected, the lower side The imaging means 5h, the lower illumination means 6h, and the upper illumination means 6g are disposed.

Further, as shown in FIG. 5, when only the lower surface of the transparent or translucent blank 4 is inspected, the background plate 19 is provided between the conveying means 20 and the conveying means 21 disposed above the conveyed blank 4. The background image 19 makes the influence of the background uniform by disposing the imaging means 5i and the illumination means 6i below the blank 4, and the lower surface of the transparent or translucent blank 4 is inspected. The surface of the background plate 19 is configured to have a single color and almost no gloss different from the ground color and printing color of the blank 4.
When only the upper surface of the blank 4 is inspected, a background plate 19 is disposed on the lower side of the blank 4 in the gap between the take-out belt 7 and the conveying means 22, and the imaging means 5 and the illumination means 6 are placed above the blank 4. The upper surface of the blank 4 passing through the gap between the conveying means 20 and the conveying means 21 is imaged.
Moreover, when inspecting both surfaces of the transparent or translucent blank 4 using the background plate 19, after inspecting the lower surface of the blank 4 as shown in FIG. 5, both surfaces are inspected by inspecting the upper surface as described above. Inspection can be performed.

  In FIG. 1, the inspection unit 17 is provided in the existing box making apparatus 18 to make the box making apparatus 1 for inspecting the blank. However, as shown in FIG. The box making device 1 in which the box making unit 3 and the stacking unit 12 are integrated may be used. By integrating, the conveyance belt and the like can be omitted, and the conveyance path length can be shortened.

Furthermore, as shown in FIG. 10, when the blank 4 a that is being conveyed in a normal positional relationship by the conveyor belt 24 is conveyed to the box making unit 3, it is glued and pasted into the gluing region 23 and is boxed. However, the blank 4b that has not been transported in a normal positional relationship is not sufficiently glued to the gluing area 23 when transported to the box making unit 3, so that the gluing area of the box to be boxed is small. There may be a shortage.
Therefore, the comparing means 15 corrects the position of either the image to be inspected or the master image only in the transport direction, and compares the position-corrected image with the other image, as shown in FIG. It is also possible to detect defective products based on positional deviations during conveyance of the blank 4.

  In the above-described embodiment, the imaging unit 5 and the illumination unit 6 are provided above and below the transport unit 2 to capture the upper and lower surfaces of the blank transported to the transport unit. As described above, the image forming means 5j and 5k and the illumination means 6j and 6k may be provided in the box making unit 3 to pick up an image of the boxed blank (carton). Alternatively, a blank in a state where only folding is applied or a blank (carton) in the middle of box making such as a state where glue is adhered may be imaged to determine whether the blank is good or bad. Thus, since the blank 4 is imaged by the box making unit 3, it is possible to detect scratches and the like generated in the box making process, such as a folding process.

As shown in FIG. 11, in order to take an image with the box making unit 3, the image pickup means 5j and the illumination means 6j are provided above the conveyor belts 9 and 31, and the gap between the box making machine 32 and the box making machine 33 is conveyed. The upper surface of the blank 4 is imaged. Further, an imaging means 5k and an illumination means 6k are provided below the conveyor belts 9 and 31, and the lower surface of the blank 4 conveyed in the gap between the conveyor belt 9 and the conveyor belt 31 is imaged. In FIG. 11, both the upper surface and the lower surface of the blank 4 are imaged and inspected, but either one may be used. At that time, the imaging means 5 and the illumination means 6 for imaging the surface to be inspected are provided. You just have to prepare.
1-6, the image pickup means 5 and the illumination means 6 are provided on one or both of the upper and lower sides of the conveyance path, and the image pickup means 5j, 5k is also provided in the box making unit 3 as shown in FIG. And the lighting means 6j and 6k, the quality inspection of the blank 4 immediately before the box making and the quality inspection of the blank 4 (carton) just after the box making can be performed by one box making apparatus. In this case, not only the scratch of the blank taken out from the paper feeding unit can be detected, but also a scratch generated in the box making process can be detected.

It is explanatory drawing of the box making apparatus provided with the inspection unit in the existing box making apparatus. It is explanatory drawing of the box making apparatus arrange | positioned so that the optical axis of an imaging means may not overlap using a roller group for a conveyance means. It is explanatory drawing of the box making apparatus arrange | positioned so that the optical axis of an imaging means may overlap using a roller group for a conveyance means. It is explanatory drawing of the box making apparatus which made the test | inspection area the clearance gap between a taking-out belt and a conveyance belt. It is explanatory drawing of the box making apparatus provided with the background board in the clearance gap between a taking-out belt and a conveyance belt. It is explanatory drawing of the box making apparatus which integrated the blank test | inspection part, the paper feeding part, the conveyance part, the box making part, and the stacking part. It is a block diagram of a blank inspection part. It is explanatory drawing when using a some light source as an illumination means. It is explanatory drawing when an elliptical reflective mirror is used as an illumination means. It is explanatory drawing of the blank currently conveyed by the conveyance belt. It is explanatory drawing of the box making apparatus provided with the imaging means in the box making part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Box making apparatus 2 Conveyance part 3 Box making part 4 Blank 5 Imaging means 6 Illumination means 7 Take-out belt 8 Adsorption belt 9 Conveyance belt 10 Sorting means 11 Slider 12 Accumulation part 13 Paper feed part 14 Master image storage means 15 Comparison means 16 Defect Detection unit 17 Inspection unit 18 Existing box making device 19 Background plate 20 Conveying unit 21 Conveying unit 22 Conveying belt 23 Gluing area 24 Conveying belt 25 Conveying roller group 26 Slider 27 Blank inspection unit 28 Conveying belt 29 Guide 30 Guide 31 Conveying belt 32 Box Making Machine 33 Box Making Machine 51 Imaging Camera 52 Reflector 61 Light Source 62 Reflector 63 Focus 64 Internal Light Source 65 Slit

Claims (3)

Sheet feeding portion in which a plurality of blanks attached cutting and muscle are stacked, and a Seihako apparatus having a conveyance section for conveying the blank to be fed to the Seihako unit by the feeding unit,
Imaging means for imaging the both sides of the blank supplied from the transport unit,
Comparison means for comparing the image to be inspected imaged by the imaging means with a blank master image to be inspected,
When the comparison value by the comparison means is greater than or equal to a preset tolerance value, a blank inspection unit comprising a defect detection means for detecting a location greater than the tolerance value as a defect location ,
The conveying unit takes out blanks stacked on the paper feeding unit one by one from the bottom, an adjacent conveying belt with a gap on the downstream side in the conveying direction of the removing belt, and an upper surface of the removing belt A suction belt that is provided over the upper surface of the transport belt and sucks and transports the upper surface of the blank;
The imaging means is provided above the take-out belt, and images the upper surface side of the blank conveyed on the take-out belt using the area between the slider of the paper feeding unit and the suction belt as an image area. The lower surface side of the blank that is provided below the suction belt and is transported in a state where the upper surface side is attracted to the suction belt is imaged using the region between the take-out belt and the transport belt as an imaging region. A box making apparatus comprising a second image pickup means . The blank test unit, the sheet feed unit and formed by unitizing together with the conveying unit according to claim 1 box manufacturing apparatus according. Wherein the imaging means is provided in said box-making device, box making device of the box-making portion images the both sides of the blank being conveyed composed claim 1 or 2, wherein.

Images