KR20130050377A - Box-making machine and defective product removal device thereof - Google Patents

Abstract

(101) for performing a predetermined inspection on a corrugated cardboard sheet (S) conveyed on a production line of a corrugated cardboard box (B) and judging whether the corrugated cardboard sheet (S) Defective article removing unit 51 for removing the corrugated cardboard sheet S on which the grooved sheet S has been formed from the production line and the corrugated cardboard sheet S determined to be defective by the corrective device 101, By providing the sorting device 102 that operates the rejection 51, it is possible to appropriately remove the defective sheet material and improve the working efficiency.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a device for removing a defective product,

The present invention relates to a defective article removing device and a sorter for removing a defective article during an operation for manufacturing a flat corrugated cardboard box.

A general sorting machine is to manufacture a box (cardboard box) by processing a sheet material (for example, a corrugated cardboard sheet) and comprises a paper feeding unit, a printing unit, an output unit, a die cut unit, a folding unit and a counter ejector unit. The paper feeding unit feeds the corrugated cardboard sheets stacked on the table one by one and sends them to the printing unit at a constant speed. The printing unit has a printing unit and performs printing on the corrugated cardboard sheet. The discharge unit forms a ruled line as a folding line on the printed corrugated cardboard sheet, and carries out the processing of the groove constituting the flap or the pasted area for joining. The die cut portion is to perform perforation for a hand hole on a corrugated cardboard sheet on which ruled lines, grooves, and pasted area strips are formed. The folding section forms a flat corrugated cardboard box by applying a paste to the pasted area piece and folding along the ruled line while joining the corrugated cardboard sheet on which the ruled line, groove, will be. The counter ejector part stacks the corrugated cardboard sheet with the corrugated cardboard sheet folded, and separates the corrugated cardboard box into a predetermined number of batches and discharges it.

However, the corrugated cardboard box manufactured by such a card making machine may cause defective products during its manufacturing operation. Examples of such defective contents include, for example, feeding failure in the paper feeding unit, printing defects in the printing unit, defective groove cutting position in the discharge unit, defective punching position in the die cut portion, defective position in the folding unit, . Therefore, conventionally, a technique has been proposed in which a corrugated cardboard sheet or a corrugated cardboard box which has been determined to have various defects and is judged to be defective is removed from a production line of a corrugated cardboard box, for example, is disclosed in the following patent documents.

The lamination apparatus of the present invention described in Patent Document 1 has a configuration in which a box taken out from the folder glue is set on the downstream side of a folder glue which forms a flat image by bending and adhering a panel at both ends while conveying the blank A defective deficiency removing device is provided between the folder gluer and the storage part and the defective defective device is operated based on the defective signal inputted to the control part, So that the phase itself is removed from the manufacturing line. Further, in the defective-product removing device of the second embodiment, a rejecting device is disposed between the folding part and the counter ejecting part, and a sorting device for discharging the corrugated cardboard box determined to be defective is provided. And a corrugated cardboard box of a defective product is selected out of the plurality of batches divided into a predetermined number of batches.

Japanese Patent Application Laid-Open No. 2006-069034 Japanese Patent Application Laid-Open No. 2009-078462

In each of the above-described patent publications, a defective toner removing device is disposed between a folder gluer (folding portion) and a storage portion (counter ejector portion), and a corrugated cardboard box made of a defective product is picked out therefrom. In this case, the defective corrugated cardboard box is excluded from the line for conveying the corrugated cardboard box of the good product due to the movement of the conveyor belt or the like. However, the corrugated cardboard box of the defective product which has been removed is already folded and joined with the grass, and the shape is complicated and difficult to handle, which is difficult to remove from the return line of the good corrugated cardboard box. In addition, even if the corrugated board has a poor feeding performance, a poor printing quality, or a groove cutout position, the corrugated board is folded and bonded after pasting, and the corrugated board is determined to be a corrugated cardboard box of defective corrugated board and removed from the conveying line. There is a problem that it is not good.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems described above, and to provide a defective article removing device and a make-up device of a defroster, which can appropriately remove a defective sheet material and improve working efficiency.

In order to accomplish the above object, there is provided an apparatus for removing defective products, comprising: a defective-product removing device for removing a defective sheet material from a production line for manufacturing a sheet material by processing a sheet material; A judging device for judging whether the sheet material is positive or negative based on a result of a predetermined inspection on the sheet material to be conveyed; And a selection device for operating the defective article removing section with respect to the sheet material determined to be defective by the deficiency determining device.

Therefore, the positive / negative determination device performs the positive / negative determination of the sheet material conveyed on the production line. When the rejecting device is operated on the sheet material determined to be defective by the positive / negative determination device, the surface is ruled At the same time, the sheet material subjected to grooving is removed from the production line before being folded. In this case, the defective product can be properly removed from the manufacturing line in the state of the sheet material before the folding, and the defective product can be removed without folding the defective sheet material. It is possible to improve the working efficiency.

In the defective-product removing apparatus of the present invention, the defective-product removing section removes the sheet material from the manufacturing line before the bonding treatment for the bonded portion of the sheet material is performed.

Therefore, since the defective sheet material is removed from the manufacturing line before the adhesive treatment of the sheet material is performed by the defective article removing unit, the adhesive adhered to the adhesive portion does not adversely affect the operation of the defective article removing unit, It is possible to improve the property.

In the defective-product removing apparatus of the present invention, the defective-product removing section removes the sheet material before folding from the manufacturing line after performing the bonding treatment to the bonded portion of the sheet material.

Therefore, after the adhesion treatment of the adhesion portion of the sheet member is performed by the defective product removing unit, the sheet member before folding is removed from the production line, so that the adhesion inspection of the adhesion member of the sheet member can be conducted and the product quality can be improved .

In the defective-product removing apparatus according to the present invention, the above-mentioned good-and-bad determination apparatus makes at least one of a feeding failure, a printing failure, a groove cutout position failure, a punching position failure,

Therefore, it is possible to detect defects of most of the sheet materials, and the product quality can be improved.

The sheet conveying apparatus may further comprise a paper feeding section for feeding the sheet material, a printing section for performing printing on the sheet material, an output section for performing ruling processing on the surface of the sheet material, A folding section for folding the ash and joining the ends to form a box, a counter ejector section for stacking the box while counting the box and ejecting the number at a predetermined number, A defective article removing device for removing the defective article from the production line before folding the sheet material subjected to the ruling and grooved on the surface and determining that the defective article is defective And a sorting device for operating the defective-material removing portion with respect to the sheet material.

Therefore, the sheet material from the paper-feeding unit is printed by the printing unit, ruled and grooved by the sheet discharging unit, folded at the folding unit and joined at the ends to form the stencil, When stacked while being counted, the sheet material determined to be defective by the judging device is removed by defective article removing without conveying to the folding section. In this case, the defective product can be properly removed from the manufacturing line in the state of the sheet material before the folding, and the defective product can be removed without folding the defective sheet material. It is possible to improve the working efficiency.

According to the defective product removing device and the sorter of the present invention, the sheet material determined to be defective is removed from the manufacturing line after the groove cutting process is performed, and the defective sheet material can be appropriately removed, The working efficiency can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram showing a makeup machine according to a first embodiment of the present invention; FIG.
Fig. 2 is a schematic configuration diagram showing a defective-product removal device applied to the delivery device of the first embodiment. Fig.
3 is a perspective view of a corrugated cardboard sheet before processing.
Fig. 4 is a perspective view of a corrugated cardboard sheet after ruled and grooved.
5 is a perspective view of a corrugated cardboard sheet showing a state during folding.
6 is a perspective view of a folded corrugated cardboard box.
Fig. 7 is a schematic configuration diagram showing a defective-product removal device of a second embodiment of the present invention according to the second embodiment of the present invention.
FIG. 8 is a schematic configuration diagram showing a defective-product removing device of a pretensioner according to a third embodiment of the present invention. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a defective product removing device and a defroster of the present invention will be described in detail. It should be noted that the present invention is not limited to these embodiments, and when there are a plurality of embodiments, it is also possible to combine the embodiments.

First Embodiment

Fig. 1 is a schematic structural view showing a make-up machine according to a first embodiment of the present invention, Fig. 2 is a schematic constitution view showing a defective-material removing apparatus applied to a maker of the first embodiment, Fig. 3 is a perspective view of a corrugated cardboard sheet before machining, Fig. 5 is a perspective view of a corrugated cardboard sheet showing a state during folding, and Fig. 6 is a perspective view of a folded corrugated cardboard box.

As shown in Fig. 1, the makeup machine of the first embodiment is to produce a corrugated cardboard box (box) B by processing corrugated cardboard sheet (sheet material) S. The dispenser includes a paper feeding section 11, a printing section 21, a paper discharging section 31, a die cut section 41 (hereinafter referred to as " paper feeding section ") arranged in a straight line in a direction D in which the corrugated cardboard sheet S and the corrugated cardboard box B are conveyed. A defective article removing unit 51, a folding unit 61, and a counter ejector unit 71.

The paper feeding unit 11 feeds the corrugated cardboard sheets S one by one and sends them to the printing unit 21 at a constant speed. The paper feed unit 11 has a table 12, a front support unit 13, a feed roller 14, a suction unit 15, and a feed roll 16. The table 12 is supported such that a plurality of corrugated cardboard sheets S can be stacked and stacked, and can be raised and lowered. The front support part 13 can determine the position of the front end of the corrugated cardboard sheet S stacked on the table 12 and can determine the position of the front end of the corrugated cardboard sheet S Respectively. A plurality of feeding rollers 14 are arranged in the conveying direction D of the corrugated cardboard sheet S corresponding to the table 12 and when the table 12 is lowered, a plurality of laminated corrugated cardboard sheets S The table 12 located at the lowest position among the plurality of tables 12 can be forwardly fed. The suction device 15 sucks the laminated corrugated cardboard sheet S downward, that is, toward the table 12 or the supply roller 14 side. The feed roll 16 can supply the corrugated cardboard sheet S fed by the feed roller 14 to the printing unit 21. [

The printing unit 21 performs multi-color printing (four colors printing in this embodiment) on the surface of the corrugated cardboard sheet S. The printing unit 21 is provided with four printing units 21A, 21B, 21C and 21D arranged in series, and printing can be performed using four ink colors on the surface of the corrugated cardboard sheet S. Each of the printing units 21A, 21B, 21C and 21D is constituted almost similarly and has a printing cylinder 22, an ink supply roll (anix roll) 23, an ink chamber 24, have. The printing cylinder 22 is provided with a plate 26 on its outer peripheral portion and is rotatably mounted. The ink supply roll 23 is disposed so as to be in contact with the platen 26 in the vicinity of the printing cylinder 22 and is rotatably installed. The ink chamber 24 accumulates ink and is provided in the vicinity of the ink supply roll 23. The receiving roll 25 conveys the corrugated cardboard sheet S while sandwiching the corrugated cardboard sheet S between it and the printing cylinder 22 while applying a predetermined pressure thereto and is rotatably provided so as to face downwardly of the printing cylinder 22 have. Though not shown, a pair of upper and lower conveying rolls are provided before and after each of the printing units 21A, 21B, 21C, and 21D.

The paper discharging section 31 carries out ruling processing and groove cutting processing on the corrugated cardboard sheet S. The paper discharge unit 31 includes a first ruled roll 32, a second ruled roll 33, a slitter knife 34, and a slitter knife 35. The first ruled-line rolls 32 are formed in a circular shape and are arranged in a plurality of (four in this embodiment) at predetermined intervals in the horizontal direction orthogonal to the conveying direction D of the corrugated cardboard sheet S, So that it can be rotated by a driving device which is not provided. The second ruled line rolls 33 are formed in a circular shape and are arranged in plural (four in this embodiment) at predetermined intervals in the horizontal direction orthogonal to the conveying direction D of the corrugated cardboard sheet S, So that it can be rotated by a driving device which is not provided. In this case, the first ruled-line roll 32 is to perform ruling processing on the surface (upper surface) of the corrugated cardboard sheet S, and the second ruled-line roll 33 is, similarly to the first ruled- (Upper surface) of the sheet S, and the receiving rolls 36 and 37 are provided so as to be rotatable in synchronization with each other at the lower position and the upper position opposed to the ruled-line rolls 32 and 33 have.

The slitter knife 34 and the slitter knife 35 are formed in a circular shape and have a plurality of (five in the present embodiment) horizontally orthogonal to the conveying direction D of the corrugated cardboard sheet S, And is rotatable by a driving device (not shown). The slitter knife 34 is provided in correspondence with the width direction end portion of the corrugated cardboard sheet S to be conveyed and is formed by cutting the end portion in the width direction of the corrugated cardboard sheet S . On the other hand, the slitter knife 35 is constituted by four pieces, and is provided corresponding to a predetermined position in the width direction of the corrugated cardboard sheet S to be conveyed. In the corrugated cardboard sheet S, Groove cutting processing can be performed. In this case, the slitter knife 34 and the slitter knife 35 are provided so that the receiving rolls 38 are rotatable in synchronism with each other at the opposed downward positions.

The die cut portion 41 is for perforating the corrugated cardboard sheet S for hand holes. The die cut portion 41 has a pair of upper and lower feeding members 42, an anvil cylinder 43, and a knife cylinder 44. The conveying member 42 conveys and supports the corrugated cardboard sheet S from above and below, and is rotatably provided. The anvil cylinder 43 and the knife cylinder 44 are each formed in a circular shape and can be rotated synchronously by a driving device (not shown). In this case, the anvil cylinder 43 has an anvil formed on the outer periphery thereof, while the knife cylinder 44 has a knife and a die formed at predetermined positions on the outer periphery thereof.

The defective article removing unit 51 is supplied from the paper feeding unit 11 and is printed by the printing unit 21 and is subjected to ruling and groove cutting processing in the paper discharging unit 31. In the die cutting unit 41, The corrugated cardboard sheet S to be processed is removed from the production line of the corrugated cardboard sheet S (corrugated cardboard box B) when the corrugated cardboard sheet S is a defective product. The defective article removing unit 51, which will be described later in detail, is configured as a part of the defective product removing apparatus of the present invention, and its operation can be controlled by the control apparatus 100. [

The folding portion 61 folds the corrugated cardboard sheet S while moving it in the carrying direction D and joins both end portions in the width direction to form a flat corrugated cardboard box B. The folding section 61 has an upper conveying belt 62, lower conveying belts 63 and 64, and a forming device 65. The upper conveyance belt 62 and the lower conveyance belts 63 and 64 sandwich the corrugated cardboard sheet S and the corrugated cardboard box B from above and below. The forming device 65 has a pair of left and right forming belts and folds the corrugated cardboard sheet S while the widthwise ends of the corrugated cardboard sheet S are bent downward. As the folding portion 61, a glueing device 66 is provided between the die cut portion 41 and the defective product removing portion 51. [ The pasting device (66) has glue gun and can paste at a predetermined position in the corrugated cardboard sheet (S) by discharging the paste at a predetermined timing.

The counter ejector portion 71 stacks the corrugated cardboard box B while counting the corrugated cardboard box B, divides the cardboard box B into a predetermined number of batches, and discharges it. The counter ejector portion 71 has a hopper device 72. The hopper device 72 has an elevatable elevator 73 in which a corrugated cardboard box B is stacked. The elevator 73 is provided with a front support plate and a flat plate not shown as a shaping device. Further, a carry-out conveyor 74 is provided below the hopper device 72.

Here, the operation of manufacturing the corrugated cardboard box B from the corrugated cardboard sheet S in the above-described first embodiment will be described with reference to Figs. 1, 3 to 6. Fig.

3, the corrugated cardboard sheet S is formed by pasting an intermediate core 303 having a corrugated shape between a front surface liner 301 and a back surface liner 302. In this embodiment, In this corrugated cardboard sheet S, two folding lines 311 and 312 are formed in the former step of the former. These folding lines 311 and 312 are for folding the flap when assembling the corrugated cardboard box B manufactured in the former. This corrugated cardboard sheet S is stacked on the table 12 of the paper feeding unit 11 as shown in Fig.

A plurality of corrugated cardboard sheets S stacked on the table 12 are first positioned by the front support portion 13 in the paper feeding unit 11 and then the table 12 is lowered The corrugated cardboard sheet S in the lowermost position is fed out by the feeding roller 14 of the conveying device. Then, the corrugated cardboard sheet S is fed to the printing unit 21 on a predetermined constant side by the pair of feed rolls 16. [

In the printing unit 21, ink is supplied from the ink chamber 24 to the surface of the ink supply roll 23 in each of the printing units 21A, 21B, 21C, and 21D, When the roll 23 is rotated, the ink on the surface of the ink supply roll 23 is transferred to the plate 26. When the corrugated cardboard sheet S is conveyed between the printing cylinder 22 and the receiving roll 25, the corrugated cardboard sheet S is sandwiched between the plate 26 and the receiving roll 25, and the corrugated cardboard sheet S ), Thereby printing is performed on the surface thereof. The printed corrugated cardboard sheet S is conveyed to the sheet discharge section 31 by a conveyance roll.

4, the front surface side of the corrugated cardboard sheet S, that is, the front surface liner 301, as shown in Fig. 4, Ruled lines 321, 322, 323, 324, 325, and 326 are formed on the side of the paper. When the corrugated cardboard sheet S passes through the second ruled line roll 33 as well as the first ruled line roll 32, 322, 323, 324, and 325 are reformed. Next, when the corrugated sheet S on which the ruled lines 322, 323, 324, and 325 are formed passes through the slitter knife 34, the end portion in the corrugated cardboard sheet S is positioned at the cutting position 321. Is cut off. Further, the position of the end portion 326 is not cut with the corrugated cardboard sheet member. When the corrugated cardboard sheet S passes through the slitter knife 35, grooves 331, 332, and 333 and glued area pieces 334 are formed at the positions of the ruled lines 322, 323, 324, and 325. The corrugated cardboard sheet S on which the grooves 331, 332 and 333 and the glazed area pieces 334 are formed at the positions of the ruled lines 322, 323, 324 and 325 is conveyed to the die cut portion 41.

Hand holes 341 and 342 are formed in the die cut portion 41 when the corrugated cardboard sheet S passes between the anvil cylinder 43 and the knife cylinder 44. [ 1, the corrugated cardboard sheet S on which the hand holes 341 and 342 are formed is coated with a paste by the pasted area piece 334 by the pasting device 66, .

In the defective article removing unit 51, the paper is fed from the paper feeding unit 11, printed by the printing unit 21, and subjected to ruling and groove cutting in the paper discharging unit 31. In the die cutting unit 41, The processed corrugated cardboard sheet S is judged to be defective at each position. When the corrugated cardboard sheet S is a defective product, the defective corrugated cardboard sheet S is removed from the production line.

In the folding section 61, the corrugated cardboard sheet S is conveyed in the conveying direction D by the upper conveying belt 62 and the lower conveying belts 63 and 64, And is folded downward with the ruled lines 322 and 324 as starting points, as shown in Fig. The folded area piece 334 and the end portion of the corrugated cardboard sheet S overlapping the pasted area piece 334 are pressed against each other to be brought into close contact with each other, So that the corrugated cardboard box B is formed as shown in Fig. At this time, in the corrugated cardboard box (B), two gaps (351) are formed at the joints. The corrugated cardboard box B is conveyed to the counter ejector portion 71 as shown in Fig.

In the counter ejector portion 71, the corrugated cardboard box B detected as a good product is sent to the hopper device 72. The corrugated cardboard box B sent to this hopper device 72 is stacked on the elevator 73 in a state in which the leading end of the cardboard box B contacts the front support plate and is shaped by the regular angle plate. When a predetermined number of corrugated cardboard boxes B are stacked on the elevator 73, the elevator 73 is lowered and a predetermined number of corrugated cardboard boxes B are discharged as one batch by the carry-out conveyor 74 , And sent to the post-administration of the ship.

Hereinafter, the defective-product removing device used in the first embodiment of the present invention will be described in detail. The defective product removing device of the first embodiment is to remove a corrugated cardboard sheet S of a defective product from a production line for manufacturing the corrugated cardboard box B by processing the corrugated cardboard sheet S. The apparatus for removing defective products includes a positive / negative determination device 101, a defective product removal device 51 and a sorting device 102. In this embodiment, the control device 100 includes a positive / negative determination device 101, And a device (102).

The positive / negative determination device 101 judges whether the quality of the corrugated cardboard sheet S conveyed on the production line is defective, such as a position defect, based on the inspection result of the detection device, To do. In this case, the goodness-of-fit judgment device 101 judges whether or not the cardboard sheet S is misaligned with respect to the paper feeding unit 11, the printing failure in the printing unit 21, The punching position defects in the cut portion 41 and the pasting defects in the pasting device 66 are determined. However, at least one determination required during each determination may be performed. In addition, this acceptance determination apparatus 101 does not judge the joining position defect with respect to the corrugated cardboard sheet S after being folded by the folding part 61. Further, the detection device is for inspecting quality defects of a position sensor, an image sensor, a capacitive sensor, and the like.

That is, in the production line, a position sensor 111 for detecting the position of the corrugated cardboard sheet S to be conveyed is provided on the delivery side of the corrugated cardboard sheet S in the paper feeding section 11. [ The position sensor 111 is, for example, a pair of left and right optical tubes disposed on both sides in the width direction of the corrugated cardboard sheet S, and detects a tilt in the horizontal direction of the corrugated cardboard sheet S being conveyed. The detection result of the position sensor 111 is outputted to the control device 100. The corrective judgment device 101 compares the inclination of the corrugated cardboard sheet S in the horizontal direction with a preset reference value, Feeding failure of the corrugated cardboard sheet S in the conveying belt 11 is determined.

In the production line, on the delivery side of the corrugated cardboard sheet S in the printing unit 21, there is provided an image sensor 112 for detecting an image printed on the corrugated cardboard sheet S to be conveyed. The image sensor 112 is, for example, a camera and an image processing apparatus disposed above the corrugated cardboard sheet S and detects the position, density (shade), and scratches of the image printed on the corrugated cardboard sheet S . The detection result of the image sensor 112 is output to the control device 100. The corrective judgment device 101 compares the position, density and scratch of an image printed on the corrugated cardboard sheet S with a preset reference value , And determines the printing failure of the corrugated cardboard sheet S in the printing unit 21. [

In the production line, the above-described position sensor 111 is also used as a position sensor for detecting the conveying position of the supplied corrugated cardboard sheet S to the paper discharge unit 31. [ In this case, the control apparatus 100 calculates the conveying position of the corrugated cardboard sheet S in consideration of the conveying distance (conveying time) from the paper feeding section 11 to the paper ejecting section 31. The first ruled-line roll 32, the second ruled-line roll 33, the slitter knife 34 and the slitter knife 35 constituting the discharge unit 31 can be driven by the discharge unit drive unit 114 And the drive unit drive unit 114 can be driven and controlled by the control unit 100. Therefore, the good and bad determination apparatus 101 compares the conveying position of the corrugated board sheet S with the rotating phase of the slitter knife 34 and the slitter knife 35 by the drive unit 114 for the discharge section, It is determined that the grooved position in the groove 31 is defective.

In the production line, the die cut portion 41 is also used as the position sensor 111 described above as a position sensor for detecting the feeding position of the supplied corrugated cardboard sheet S. In this case, the control apparatus 100 calculates the conveying position of the corrugated cardboard sheet S in consideration of the conveying distance (conveying time) from the paper feeding section 11 to the die cut section 41. The anvil cylinder 43 and the knife cylinder 44 constituting the die cut portion 41 can be driven by the drive device 116 for the die cut portion and the drive device 116 is driven by the control device 100 (Not shown). Therefore, the positive / negative determination device 101 compares the conveying position of the corrugated board sheet S with the rotation phase of the anvil cylinder 43 and the knife cylinder 44 by the drive device 116 for die cut portion, The punching position defect in the cut portion 41 is judged.

On the downstream side of the pasting device 66 in the production line, a capacitive sensor 117 for detecting the position and amount of the paste applied to the corrugated cardboard sheet S to be conveyed is provided. The capacitive sensor 117 detects the position and amount of the paste applied to the corrugated cardboard sheet S being conveyed as a distribution. The result of detection by the capacitive sensor 117 is output to the control device 100. The corrective judgment device 101 compares the position or the amount of the paste applied to the corrugated cardboard sheet S with a predetermined reference value, And determines the pasting failure of the corrugated cardboard sheet S in the pasting device (66).

The corrugated cardboard sheet S coated with the paste at the predetermined position by the pasting device 66 is folded by the folding portion 61 and then joined to the corrugated cardboard box B at both ends to form the card ejector portion 71 , The corrugated cardboard box B is sequentially stacked. In this case, only when the folding portion 61 is brought into close contact with the end portion of the corrugated cardboard sheet S, the corrugated cardboard sheet S is not dried, and when the cardboard sheet S is sent from the folding portion 61 to the counter ejector portion 71, There is a fear that the close contact position of the end portions in the contact surface S may be displaced.

Therefore, the corrugated cardboard box B produced by folding the corrugated cardboard sheet S by the folding portion 61 can not be judged as a good or defective. For example, even if it is determined that the joint is defective by detecting the joint position in the corrugated cardboard box B by the position sensor and comparing the joint position with the reference value, the counter ejector portion 71 There is a possibility that the bonding position is displaced and becomes defective. Even if it is determined that the connection of the corrugated cardboard box B is bad, on the contrary, even if it is judged that the joining of the corrugated cardboard box B is bad, the front support plate of the shaping device The bonding position defects may be corrected and improved.

Therefore, in the present embodiment, it is not judged that the joining position is defective with respect to the corrugated cardboard box B by folding by the folding portion 61 and then joining both ends. Therefore, the defective article removing unit 51 described below is disposed on the upstream side of the folding unit 61 in the conveying direction D of the corrugated cardboard sheet S, and the defective corrugated board sheet S are folded by the folding section 61 before being folded.

The defective article removing unit 51 removes the corrugated cardboard sheet S before folding, which is subjected to ruling processing on the surface thereof and groove cutting processing, from the production line. 2, the conveyor belt 121 is an endless belt, and is wound on a driving roller 122 and a plurality of supporting rollers 123 so as to be able to carry the corrugated cardboard sheet S supported on the upper surface thereof . A pair of upper and lower guide rollers 124 are disposed on the upstream side of the conveyor belt 121. A glue applicator 66 and a capacitive sensor 117 are provided between the guide roller 124 and the conveyor belt 121, . In the present embodiment, the pasting device 66 has a glue gun 125 and a support stand 126, and by controlling the glue gun 125, the paste can be discharged to the pasting area piece 334 of the corrugated sheet S. have. In this case, the pasting device 66 may not be constituted by the glue gun 125 but may be constituted by a pasting roll.

The transport belt 121 has a transport section 121a which is substantially horizontal (in this embodiment, slightly upwardly inclined) and a discharge section 121b inclined downward from the transport section 121a, The upper conveying belt 62 and the lower conveying belt 63 of the folding unit 61 are disposed on the downstream side of the conveying rollers 121a and 121b. In this case, the conveying belt 121 and the conveying belts 62 and 63 in the folding part 61 of the conveying belt 121 are arranged in a substantially straight line, and the corrugated cardboard sheet S is made of a non- And can be returned from the rejection unit 51 to the folding unit 61. [

The conveyor belt 121 is disposed below the discharging portion 121b and has the discharging belt 127 and the rejected product receiving case 128 disposed thereon. The discharge belt 127 is disposed so as to be inclined downward and the proximal end portion thereof is located above the rejection receiving case 128 so as to overlap in the vertical direction at the lower portion of the discharging portion 121b. The conveying belt 121 is disposed above the discharging portion 121b and is provided with a reject roller 129. The conveying belt 121 is supported by the supporting lever 130 so as to be movable up and down, Is swingable by the drive device (131).

2, the corrugated cardboard sheet S is folded by the conveying belt 121 when the reject roller 129 is in the raised position shown by the solid line in FIG. 2 by the driving device 131 via the supporting lever 130 (61). On the other hand, when the reject roller 129 is in the lowering position indicated by the two-dot chain line in FIG. 2 by the driving device 131 via the support lever 130, the corrugated board sheet S is conveyed to the reject roller 129 The front end portion is downwardly pressed by the discharge belt 127 and can be discharged to the defective article receiving case 128 by the discharge belt 127. [

The sorting apparatus 102 operates the defective article removing unit 51 with respect to the corrugated cardboard sheet S determined to be defective by the corrective judgment apparatus 101. [ That is, when the corrugated board sheet S determined to be defective in at least one inspection item on the basis of the various inspection results executed by the good / bad determination apparatus 101 arrives at the defective article removing unit 51, ) Operates the defective article removing unit 51 to remove the corrugated cardboard sheet S determined to be a defective product from the manufacturing line and discharge it to the defective article receiving case 128. [ That is, the sorting apparatus 102 operates the reject roller 129 via the support lever 130 by the drive unit 131 to remove the corrugated board sheet S of the defective product from the production line.

In this case, the defective article removing unit 51 is disposed on the downstream side of the gluing unit 66, and the glued area piece 334 of the corrugated cardboard sheet S is pasted by the gluing unit 66 After that, the pasting failure of the corrugated cardboard sheet S is judged. Then, the defective article removing unit 51 removes the corrugated board sheet S of the defective product from the production line before being folded by the folding unit 61.

Here, the operation of the defect eliminating device of the first embodiment will be described.

1 and 2, when the paper feeding unit 11 feeds the corrugated cardboard sheets S one by one to the printing unit 21, the position sensor 111 detects the position Detects the position of the corrugated cardboard sheet S, and outputs the detection result to the control device 100. [ Then, the positive / negative determination device 101 compares the inclination in the horizontal direction of the corrugated cardboard sheet S calculated from the detection result with the reference value to determine the feeding failure of the corrugated cardboard sheet S. That is, if the inclination of the corrugated cardboard sheet S to be conveyed is not within the reference area set from the reference value, the positive / negative determination device 101 determines that feeding is poor.

Subsequently, when the printing unit 21 supplies the printed corrugated cardboard sheet S to the discharge unit 31, the image sensor 112 detects an image printed on the corrugated cardboard sheet S and controls the detection result And outputs it to the apparatus 100. Then, the positive / negative determination device 101 judges the printing failure of the corrugated cardboard sheet S by comparing the position of the image, the density (grayscale) and the scratches with the reference value from the detection result. That is, if the position and the density of the image of the corrugated cardboard sheet S to be conveyed are not within the reference area set from the reference value, the good / bad determination device 101 determines that the corrugated cardboard sheet S is poor in printing.

In the paper discharge section 31, the position sensor 111 detects the conveying position of the corrugated cardboard sheet S and outputs the detection result to the control device 100. [ Further, the drive unit 114 for the discharge section is capable of driving and rotating the knives 34 and 35, and the rotational phase thereof is output to the control apparatus 100. [ Then, the corrective judgment device 101 judges whether or not the grooved position of the corrugated cardboard sheet S is defective by comparing the conveying position of the corrugated cardboard sheet S and the rotational phase of each of the knives 34, 35. That is, if the machining position set from the rotational phase of each knife 34, 35 is not at the proper position with respect to the conveying position of the corrugated cardboard sheet S, It is determined that the position is defective.

In the die cut section 41, the position sensor 111 detects the conveying position of the corrugated cardboard sheet S and outputs the detection result to the control device 100. [ The drive device 116 for the die cut part is capable of driving and rotating each of the cylinders 43 and 44 and the rotational phase thereof is output to the control device 100. [ Then, the corrective judgment device 101 judges the defective position of the corrugated cardboard sheet S by comparing the conveying position of the corrugated cardboard sheet S and the rotational phase of each of the cylinders 43, 44. That is, if the machining position set from the rotational phase of each of the cylinders 43, 44 is not at the proper position with respect to the conveying position of the corrugated cardboard sheet S, It is judged to be defective.

When the paste area device 334 of the corrugated cardboard sheet S is coated with the paste by the pasting device 66, the capacitance sensor 117 calculates the electrostatic capacity (moisture content) of the paste applied to the corrugated cardboard sheet S Detects the position and amount of pasting, and outputs the detection result to the control device (100). Then, the goodness-of-criterion determination device 101 judges the pasting failure of the corrugated cardboard sheet S by comparing the pasted position and amount with the reference value from the detection result. That is, if the position and amount of pasting of the corrugated cardboard sheet S to be conveyed do not fall within the reference area set from the reference value, then the corrective judgment unit 101 judges that the corrugated cardboard sheet S is poorly pasted.

The control device 100 stores the results of determination of the corrugated cardboard sheet S in the paper feeding section 11, the printing section 21, the paper output section 31, the die cut section 41 and the pasting device 66, When the corrugated board sheet S determined to be defective is conveyed to the defective article removing unit 51, the sorter 102 operates the defective article removing unit 51 to remove the corrugated board sheet S of the defective product from the manufacturing line do.

That is, the control device 100 (sorting device 102) determines that the reject roller 129 is normally stopped at the raised position by the drive device 131 in the defective article removing unit 51, The corrugated cardboard sheet S of the superior product is transported from the transport belt 121 to the upper and lower transport belts 62 and 63 of the folding section 61 when the corrugated cardboard sheet S is transported.

On the other hand, the control device 100 (sorting device 102) is a device for sorting corrugated cardboard (cardboard), which is determined to be defective in the paper feed unit 11, the printing unit 21, the paper output unit 31, the die cut unit 41, When the sheet S reaches the defective article removing unit 51, the drive unit 131 moves the reject roller 129 to the lowered position to move the cardboard sheet S being moved on the conveyor belt 121, The front end portion is pressed downward by the reject roller 129 and is transferred to the discharge belt 127. [ The defective corrugated cardboard sheet S is discharged from the conveying belt 121 to the defective article accommodating case 128 through the discharge belt 127 without being conveyed from the conveying belt 121 to the folding section 61 .

As described above, in the defective-product removing device of the first embodiment, the defective-matter removing device 101 for performing a predetermined inspection on the corrugated cardboard sheet S conveyed on the production line of the corrugated cardboard box B to make a positive / A defective article removing unit 51 for removing the corrugated cardboard sheet S on which the ruled lines are formed and the corrugated cardboard sheet S subjected to the grooving process from the production line, a corrugated cardboard sheet S determined to be defective by the good / bad judgment apparatus 101, The sorting device 102 for operating the defective article removing unit 51 is provided.

Therefore, the positive / negative determination apparatus 101 inspects the corrugated cardboard sheet S to determine whether the corrugated cardboard sheet S is defective. The discrimination apparatus 102 discriminates the corrugated cardboard sheet S determined to be defective by the positive / negative determination apparatus 101, When the defective article removing unit 51 is operated with respect to the corrugated board sheet S, the corrugated board sheet S as a defective product is removed from the production line although the surface is subjected to the ruling process and the groove cutting process. In this case, the positive / negative determination device 101 does not judge the defective joint position with respect to the corrugated cardboard sheet S after folding.

In this case, since the corrugated cardboard sheet S is a flat plate shape before it is folded by the folding portion 61 and has a simple shape, the corrugated cardboard sheet S of a defective product having a simple shape is removed from the production line, It is possible to appropriately perform the defective-product removing operation. That is, the folded corrugated cardboard box B in the folding portion 61 is joined in two stages, so that the thickness of the corrugated cardboard box B is twice or more the thickness of the corrugated cardboard sheet S, There is a possibility that a defective conveyance occurs. Further, by removing the corrugated board sheet S of a defective corrugated board sheet S from the manufacturing line before folding by the folding section 61, the corrugated board sheet S, which is already defective, is removed without being folded by the folding section 61, It is possible to eliminate unnecessary work and improve work efficiency.

In the defective product removing apparatus of the first embodiment, the defective article removing unit 51 applies a pasting operation to the pasted area piece 334 by the pasting device 66, and then the corrugated cardboard sheet S Are removed from the manufacturing line. Therefore, since the corrugated cardboard sheet S before being folded is pasted on the pasted area piece 334 from the manufacturing line, it is possible to inspect the pasting defect of the corrugated cardboard sheet S, and the product quality can be improved.

In the defective-product removing device of the first embodiment, the good-quality-judging device 101 judges whether or not the corrugated cardboard sheet S has at least one of a feeding failure, a printing defect, a groove cutout position defect, a punching position defect, Determination is made. Therefore, it is possible to detect defects of most of the corrugated cardboard sheet S, and the product quality can be improved.

Further, in the defective-product removing device of the first embodiment, the deficiency determining device 101 does not judge the defective position of the corrugated cardboard sheet S after folding. Therefore, the defective bonding position in the corrugated cardboard sheet S varies in the conveying step after the folding, so that the judgment of the defective bonding position is not made here, thereby eliminating unnecessary work and improving the workability.

The defective article removing device of the first embodiment includes a defective article removing unit 51 as a defective article removing unit 51 having a conveyance belt 121 capable of carrying and carrying a corrugated cardboard sheet S on the upper surface thereof, A defective article receiving case 128 and a reject roller 129 that can be swung by the driving device 131 are provided. Therefore, when the corrugated cardboard sheet S determined to be a defective product reaches the defective article removing unit 51, the cardboard sheet S on the conveying belt 121 is moved downward by the drive unit 131 by lowering the reject roller 129 So that the corrugated cardboard sheet S on the production line can be easily removed with a simple structure. The conveyor belt 121 of the defective article removing unit 51 supports the lower surface of the corrugated cardboard sheet S and can be conveyed to the folding unit 61 or the defective article receiving case 128. The pasted corrugated cardboard sheet S The corrugated cardboard sheet S can be properly conveyed without contacting the upper surface of the cardboard sheet S.

The ejector unit of the first embodiment includes a paper feeding unit 11, a printing unit 21, a paper discharging unit 31, a die cutting unit 41, a folding unit 61, a counter ejector unit 71, And a defective product removing device for removing the corrugated cardboard sheet S of a defective product between the die cut portion 41 and the folding portion 61 without carrying it to the folding portion 61. [

Therefore, the corrugated cardboard sheet S from the paper-feeding unit 11 is printed by the printing unit 21, ruled and grooved by the discharge unit 31, and drilled in the die-cut unit 41 And the corrugated cardboard box B is folded and folded at the folding portion 61 to form a corrugated cardboard box B. When the cardboard box B is stacked while being counted by the counter ejector portion 71, The corrugated cardboard sheet S is removed without being conveyed to the folding section 61. [ As a result, the rejected product can be properly removed and the corrugated cardboard sheet S of the defective product can be removed without being folded, thereby eliminating unnecessary work and improving the working efficiency.

Second Embodiment

Fig. 7 is a schematic configuration diagram showing a defective-product removal device of a second embodiment of the present invention according to the second embodiment of the present invention. Members having the same functions as those of the above-described embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted.

7, in the defective-product removing device of the second embodiment, as shown in Fig. 7, the defective article removing unit 201 is configured so that the surface of the defective-product removing unit 201 is subjected to ruled- The sheet S is removed from the production line. That is, the upper conveyor belt 202 is a belt having an endless hole, and a plurality of the belt are provided at predetermined intervals in the width direction of the corrugated cardboard sheet S and wound around the driving roller 203 and the supporting roller 204. The suction device 205 is disposed above the belt which is wound around the support roller 203 and the drive roller 204 and moves downward. The lower conveying belt 206 is an endless belt and is provided in plurality at predetermined intervals in the width direction of the corrugated cardboard sheet S so as to be opposed to the lower side of the upper conveying belt 202, . The corrugated cardboard sheet S can be conveyed while being sucked by the suction device 205 between the upper conveyance belt 202 and the lower conveyance belt 206. The distance L (distance) L from the downstream end of the suction device 205 to the inlet of the folding part 61 is preferably at least one-half the minimum sheet passing length of the defroster .

The upper conveyance belt 202 is substantially horizontal and is arranged so as to be continuous with the upper conveyance belt 62 and the lower conveyance belt 63 in the folding section 61. The conveying belts 62 and 63 of the upper conveying belt 202 and the folding unit 61 are arranged substantially in a straight line and the corrugated board sheet S is conveyed from the rejecting unit 201 to the folding unit 61, As shown in FIG.

The upper conveyor belt 202 is located below the downstream end, and the discharge belt 127 and the rejected product receiving case 128 are disposed. The lower conveying belt 206 is shorter than the upper conveying belt 202 and the lower portion of the upper conveying belt 202 is opened downward and the discharging belt 127 is opposed. The upper conveying belt 202 is located on the downstream side and a reject lever 208 is rotatably disposed up and down. The reject lever 208 is driven by the driving device 209 to move the upper conveying belt 202 As shown in Fig. In this case, a plurality of reject levers 208 are arranged in a gap between the plurality of upper conveyance belts 202, and arranged so as not to interfere with each of the upper conveyance belts 202.

7, the corrugated cardboard sheet S is sucked to the lower surface of the upper conveyance belt 202 and is conveyed to the folding section 61 (see FIG. 7) ). On the other hand, when the rejection lever 208 is in the lowered position indicated by the two-dot chain line in FIG. 7 by the drive unit 209, the corrugated board sheet S is moved downward And can be discharged to the defective article housing case 128 by the discharge belt 127. [

In this case, the defective article removing unit 201 is disposed on the downstream side of the gluing unit 66. After the gluing unit 66 applies the gluing operation to the corrugated cardboard sheet S, It is judged that the paste is bad. Then, the defective article removing unit 201 removes the corrugated board sheet S of the defective product from the production line before being folded by the folding unit 61.

In the defective product removing device of the second embodiment having such a configuration, in the paper feed unit 11, the printing unit 21, the paper output unit 31, the die cut unit 41 (see FIG. 1) The sheet S is judged as defective. When the corrugated board sheet S determined to be defective reaches the defective article removing unit 201, the drive unit 209 moves the reject lever 208 to the lowered position, The front end portion of the corrugated cardboard sheet S being sucked and moving is pressed downward by the reject lever 208 and the suction by the upper conveyor belt 202 is released and is transferred to the discharge belt 127. [ The defective corrugated cardboard sheet S is conveyed from the upper conveyance belt 202 to the folded portion 61 without being conveyed from the upper conveyance belt 202 via the discharge belt 127 to the rejected product accommodating case 128 .

As described above, in the defective-product removing apparatus of the second embodiment, the corrugated cardboard sheet S which is subjected to the ruling processing and the groove cutting processing is provided between the pasting device 66 and the folding section 61 from the production line The defective article removing unit 201 is provided. Therefore, the corrugated cardboard sheet S determined to be defective, which is a flat plate shape having a simple shape, is removed from the production line, whereby the defective-product removing operation can be appropriately performed. Further, It is possible to eliminate unnecessary work and improve work efficiency.

The defective article removing apparatus of the second embodiment includes an upper conveyor belt 202 capable of conveying and conveying the corrugated cardboard sheet S by suction from the lower surface of the lower conveyor belt 202, An ejection belt 127 disposed in the lower part, a rejected product receiving case 128 and a reject lever 208 that can be swung by the drive unit 209 are provided. Therefore, when the corrugated cardboard sheet S determined as a defective item reaches the defective article removing unit 201, the drive unit 209 lowers the rejection lever 208, so that the corrugated cardboard sheet S sucked by the upper conveyance belt 202 The sheet S can be downwardly pressed down and discharged to the rejected product accommodating case 128 through the discharge belt 127. With this simple structure, it is possible to easily remove the corrugated cardboard sheet S of the defective product on the production line have. Since the upper conveyor belt 202 of the defective article removing unit 201 sucks and conveys the corrugated cardboard sheet S only by lowering the reject lever 208, The corrugated cardboard sheet S can be discharged to the case 128 and the corrugated cardboard sheet S of a defective high-precision product can be removed.

It is also possible to manufacture the corrugated cardboard box B by conveying corrugated cardboard sheets S having a plurality of sizes and to provide the corrugated cardboard box S with the discharge portion 31, 41, the folding unit 61 (the pasting unit 66), and the counter ejector unit 71 are adjustable. Therefore, in the case of applying the defective article removing unit 201 of the second embodiment, the position of the pasted sheet piece S (the position of the pasted sheet piece 334) and the position of the upper conveyer belt 202 in the corrugated cardboard sheet S, It is preferable to adjust the position of the upper conveyance belt 202 in advance so as not to coincide with the width direction of the sheet S in advance.

Third Embodiment

FIG. 8 is a schematic configuration diagram showing a defective-product removing device of a pretensioner according to a third embodiment of the present invention. FIG. Members having the same functions as those of the above-described embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted.

As shown in Fig. 8, in the defective-product removing apparatus according to the third embodiment, the defective article removing unit 251 is subjected to ruled-line machining on the surface thereof, To remove the corrugated cardboard sheet S from the production line. That is, the conveyor belt 121 is wound on the drive roller 122 and the plurality of support rollers 123 so that the corrugated cardboard sheet S can be supported on the upper surface thereof. A folding unit 61 is disposed downstream of the conveying belt 121 and a gluing unit 66 is disposed between the conveying belt 121 and the folding unit 61.

The conveyor belt 121 is provided with a discharge belt 127 and a defective article receiving case 128 below. The transport belt 121 is disposed above the reject roller 129 and is supported by the support lever 130 so as to be movable up and down. The support lever 130 is supported by the drive device 131 As shown in Fig. Therefore, when the rejection roller 129 is lowered by the driving device 131 through the support lever 130, the front end portion of the corrugated cardboard sheet S is pressed down by the rejection roller 129, To the rejected product accommodating case 128. [

In this case, the defective article removing unit 251 is disposed on the upstream side of the pasting device 66 and before the pasting operation is performed on the corrugated cardboard sheet S by the pasting device 66, 61 is folded, the corrugated cardboard sheet S determined to be defective is removed from the production line.

In the defective-material removing device of the third embodiment having the above-described structure, in the paper feed unit 11, the printing unit 21, the paper output unit 31, and the die cut unit 41 A determination is made. When the cardboard sheet S determined to be defective reaches the defective article removing unit 251, the drive unit 131 moves the reject roller 129 to the lowered position, The front end portion of the corrugated cardboard sheet S being moved is downwardly pressed by the reject roller 129 and is transferred to the discharge belt 127. [ The defective corrugated cardboard sheet S is discharged from the conveying belt 121 to the defective article accommodating case 128 through the discharge belt 127 without being conveyed from the conveying belt 121 to the pasting device 66 .

As described above, in the defective product removing apparatus of the third embodiment, the corrugated cardboard sheet S, which is subjected to the ruling process and the groove cutting process, is formed between the die cut portion 41 and the pasting device 66, The defective article removing unit 251 is provided. Therefore, the corrugated cardboard sheet S determined to be defective, which is a flat plate shape having a simple shape, is removed from the production line, so that the defective-product removing operation can be appropriately performed and the corrugated cardboard sheet S, 66, or can be removed without being folded by the folding section 61, so that unnecessary work can be eliminated and the working efficiency can be improved.

In the defective article removing apparatus of the third embodiment, the defective article removing unit 251 removes the corrugated cardboard sheet S (S) which is determined to be defective before the pasting operation is performed on the pasted area piece 334 of the corrugated cardboard sheet S ) Is removed from the production line. Therefore, the paste attached to the pasted region piece 334 does not adversely affect the operation of the defective article removing unit 251, and workability can be improved.

In the above-described embodiment, the sheet feeder is constituted by the sheet feeding section 11, the printing section 21, the sheet discharging section 31, the die cutting section 41, the folding section 61, the counter ejector section 71, The die cut portions 41 may be omitted if the hand holes 341 and 342 are unnecessary in the corrugated cardboard sheet S. In this case, Further, in the above-described embodiment, the pasting device 66 for pasting at a predetermined position in the corrugated cardboard sheet S is applied as an apparatus for attaching the adhesive material to the adhesive portion of the sheet material. However, For example, a double-sided adhesive tape may be applied.

In both of the above-described embodiments, the positive / negative determination device 101 determines whether or not the cardboard sheet S is misaligned due to feeding failure in the sheet feeding section 11, printing failure in the printing section 21, The groove cutting position defective, the punching position defective in the die cut portion 41, and the pasting defect in the pasting device 66 are examined. However, when it is not necessary to perform all the inspection, only a part of the plurality of inspection items is inspected .

The defective product removing device and the sorter of the present invention according to the present invention can remove the defective sheet material properly by removing the sheet material subjected to the ruling and groove cutting processing from the manufacturing line, And can be applied to any production machine.

11: Feeder
21: Printing section
31:
41: die cut portion
51, 201, 251: rejection of rejects
61:
66: pasting device
71: counter ejector portion
100: Control device
101: Judgment device
102: sorting device
B: Corrugated box (phase)
S: corrugated sheet (sheet material)
D: conveying direction

Claims (5)

A defective-product removing device for a defective device for removing a defective sheet material from a production line for manufacturing a box by processing a sheet material,
An affirmative judgment device for judging whether the sheet material is positive or negative based on a result of a predetermined inspection on the sheet material conveyed on the production line,
A defective product removing unit that removes the sheet material from the manufacturing line before folding the sheet material subjected to the groove cutting process,
And a selection device for operating the defective-product removal section with respect to the sheet material determined to be defective by the positive / negative determination device. The defective-product removing device according to claim 1, wherein the defective-product removal unit removes the sheet material from the production line before the adhesion treatment of the bonded portion of the sheet material is performed. The defective product removing device according to claim 1, wherein the defective-product removing unit removes the sheet material before folding from the production line after performing an adhesion process on the bonded portion of the sheet material. The image forming apparatus according to any one of claims 1 to 3, wherein the positive / negative determination device performs at least one of a feeding failure, a printing failure, a groove cutout position failure, a punching position failure, And the defective product removing device of the removing device. A sheet feeding portion for feeding the sheet material,
A printing unit that prints the sheet material;
A sheet discharging section for carrying out ruling processing on the surface of the sheet material and performing grooving processing;
A folding portion for folding the sheet material to form an edge by joining the edge portions,
A counter ejector unit for stacking the phases while counting them,
A judging device for judging whether the sheet material is positive or negative based on a result of a predetermined inspection on the sheet material; and a judging device for judging whether the sheet material is ruled or not, And a selection device for operating the defective-product removal section with respect to the sheet material determined to be defective by the positive / negative determination device.

Images