JP2014031254A - Defective blank discharge system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge defective blanks by easily and surely separating the defective blanks from non-defective blanks.SOLUTION: A defective blank discharge system 10 includes a blank carry-in part 27A for carrying a blank 1, and a distribution mechanism 30 provided among the blank carry-in part 27A, a non-defective blank discharge mechanism 22A and a defective blank discharge mechanism 24A. The distribution mechanism 30 is rotatable centering on a supporting point 35 at a downstream side. The distribution mechanism 30 has a non-defective blank carrying surface for guiding a non-defective blank 1A to a non-defective blank discharge mechanism 22A side, and a defective blank carrying surface for guiding a defective blank 1B to a defective blank discharge mechanism 24A side.

Description

  The present invention relates to a defective blank discharge system capable of transporting only non-defective blanks to a subsequent process, for example, among blanks for producing paper containers and the like, and reliably discharging the defective blanks to the outside.

  Conventionally, printed blanks are produced, for example, to produce paper containers and the like. Such blanks are folded along the creases in a later step.

  In general, a printed blank is first printed on a sheet-shaped blank, and a sheet-shaped blank including a plurality of printed blanks is produced from the printed blank, and then this sheet-shaped blank is separated for each printed blank. Is done.

  The printed blanks separated for each blank are then sent to a subsequent process and folded along the creases.

  The printed blank obtained in this way includes a properly printed non-defective blank and a defective blank that is not properly printed. When the printed blank is used in a subsequent process, only a defective blank is used in advance. Is required to be discharged to the outside.

JP2008-195531A JP2007-210326 JP2007-153594

  As described above, it has been conventionally required to discharge only defective blanks from printed blanks including non-defective blanks and defective blanks. However, defective blanks are quickly and accurately discharged to the outside. No mechanism has been developed.

  The present invention has been made in view of such points, and an object of the present invention is to provide a defective blank discharge system that can quickly and reliably discharge a defective blank from a printed blank.

  The present invention includes a blank carry-in unit that horizontally conveys a plurality of blanks including a non-defective product blank and a defective product blank, a non-defective blank discharge mechanism that is provided on the downstream side of the blank carry-in unit, and discharges a good product blank, and a blank carry-in unit Is provided between the defective blank discharge mechanism for discharging defective blanks, the blank carry-in section, the non-defective blank discharge mechanism and the defective blank discharge mechanism, and the non-defective blank from the blank carry-in section. A sorting mechanism having a non-defective blank transport surface to be sent to the non-defective blank discharge mechanism side and a defective blank transfer surface to send the defective blank from the blank carry-in section to the defective blank discharge mechanism side, and the sorting mechanism is upstream The defective blank discharge system is characterized in that it has a distribution part on the side and the upstream distribution part is rotatable around a fulcrum on the downstream side. Is Temu.

  The present invention is a defective blank discharge system characterized in that the non-defective blank discharge mechanism is provided on the downstream side in the horizontal direction of the distribution mechanism, and the defective blank discharge mechanism is provided on the lower downstream side of the distribution mechanism. is there.

  In the present invention, the blank carry-in portion includes a first nip roller that sandwiches the blank, and the non-defective blank discharge mechanism includes a second nip roller that sandwiches the blank. The first nip roller, the second nip roller, the first nip roller, and the second nip roller A conveyance belt is stretched around an intermediate roller provided between the first nip roller, the second nip roller, and the intermediate roller. It is a defective blank discharge system.

  The present invention is the defective blank discharge system in which the intermediate roller is disposed immediately above the sorting mechanism.

  In the present invention, when the defective blank is sent from the blank carry-in portion to the defective blank discharge mechanism side, the non-defective blank conveyance surface of the sorting mechanism is located in the range of 10 ° to 30 ° upward with respect to the horizontal direction. When the non-defective blank is sent from the blank carry-in portion to the non-defective blank discharge mechanism side, the non-defective blank transport surface of the sorting mechanism is located in a range of 0 ° to 10 ° downward with respect to the horizontal direction. It is a defective blank discharge system.

  In the present invention, when the defective blank is sent from the blank carry-in portion to the defective blank discharge mechanism side, the non-defective blank conveyance surface of the sorting mechanism is located in the range of 10 ° to 25 ° upward with respect to the horizontal direction. When the non-defective blank is sent from the blank carry-in portion to the non-defective blank discharge mechanism, the non-defective blank transport surface of the sorting mechanism is located in a range of 2 ° to 7 ° downward with respect to the horizontal direction. It is a defective blank discharge system.

  As described above, according to the present invention, it is possible to easily and reliably separate and discharge a defective product blank from a non-defective product blank, and send only the non-defective product blank to the next process by simply rotating the sorting mechanism.

FIG. 1 is an overall view showing a blank manufacturing system in which a defective blank discharge system according to the present invention is incorporated. FIG. 2 is a side view showing a defective blank discharge system according to the present invention. FIG. 3 is a side view showing the operation of the defective blank discharge system according to the present invention. FIG. 4 is a side view showing the operation of the defective blank discharge system according to the present invention. Fig.5 (a) is a top view which shows the sheet-like blank containing a some blank, FIG.5 (b) is an enlarged view of a sheet-like blank. FIG. 6 is a schematic side view showing a defective blank discharge system. FIG. 7 is a schematic plan view showing a defective blank discharge system. 8A, 8B, 8C, and 8D are side views showing details of the distribution mechanism.

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

  First, the whole blank manufacturing system incorporating the defective blank discharge system according to the present invention will be described with reference to FIG.

  As shown in FIG. 1, the blank manufacturing system 11 winds a sheet-like blank S extending in a printed strip shape, and feeds the sheet-like blank S from a paper feeding unit 12 and a paper feeding unit 12. The sheet-shaped blank S is punched by a platen by a detection unit 13 that detects the suitability of the printing state of the sheet-shaped blank S, a sheet-conveying unit 14 that conveys the sheet-shaped blank S, and the sheet-shaped blank S conveyed by the sheet-shaped conveying unit 14. The punching part 15 which produces the sheet-like blank 5 (refer FIG. 5 (a) (b)) is provided. In addition, the sheet-like blank 5 may be conveyed from the paper supply unit 12, and the platen may be a rotary die cutter.

  Further, on the downstream side of the punching unit 15, a sheet feeding unit 16 including a conveyor for transporting the sheet-like blank 5 is provided, and on the downstream side of the sheet feeding unit 16, a printed blank that becomes a product part from the sheet-like blank 5. A stripper unit 17 that separates 1 (also simply referred to as a blank) from the margin 2 is provided. A defective blank discharge system 10 according to the present invention for discharging the defective blank 1B to the outside is disposed downstream of the stripper section 17, and the non-defective blank 1A sorted by the defective blank discharge system 10 is then transferred to the blank transport section. 18 is transferred to the next process. In addition, the conveyance speed of the blank 1 is 120-210 m / min.

  In addition, the sheet feeding unit 12, the detection unit 13, the sheet conveyance unit 14, the punching unit 15, the sheet feeding unit 16, the stripper unit 17, the defective blank discharge system 10 and the blank conveyance unit 18 are all control units 19. And is driven and controlled by the control unit 19.

  Among these, the detection unit 13 detects whether or not the printing state of the sheet-like blank S that is unwound from the paper feeding unit 12 is appropriate. In addition, the detection unit 13 detects dirt, foreign matter, and the like of the sheet-like blank S. can do.

  Specifically, the detection unit 13 detects a printing state, dirt, foreign matter, and the like applied to the blank 1 that is the product portion of the sheet-like blank S, and sends the detection result to the control unit 19.

  The detection unit 13 is not limited to the case where the sheet blank 12 is detected by the detection unit 13 provided between the paper feeding unit 12 and the sheet conveyance unit 14. The detection unit 13 is not limited to the punching unit 15 and the stripper unit 17. It is also possible to detect the printing state, dirt, foreign matter and the like of the sheet-like blank 5 produced by the punching unit 15 by the detection unit 13 and send the detection result to the control unit 19.

  The punching unit 15 punches the sheet-like blank S to produce the sheet-like blank 5.

  Here, with reference to FIGS. 5A and 5B, the sheet-like blank 5 formed by punching the sheet-like blank S will be described.

  As shown in FIGS. 5A and 5B, the sheet-fed blank 5 has a plurality of, for example, 3 × 7 blanks 1 serving as product parts, and a blank portion 2 formed between the blanks 1. Moreover, each blank 1 and the margin part 2 are mutually isolate | separated in parts other than the several connection part 3, and each blank 1 and the margin part 2 can be isolate | separated completely by breaking the connection part 3. FIG.

  That is, the sheet-like blank 5 having the blank 1 and the blank part 2 produced in the punching part 15 is sent to the stripper part 17, and the connecting part 3 is broken in the stripper part 17. Separated from the margin 2.

  By the way, each blank 1 separated from the blank part 2 in the stripper unit 17 includes a non-defective product blank 1A having an appropriate printing state and an inferior product blank 1B having an inappropriate printing state. Is discharged to the outside by the defective product blank discharge system 10, and only the remaining good product blank 1 </ b> B is sent to the next process via the blank transport unit 18 including a conveyor.

  Next, the defective blank discharge system 10 according to the present invention will be described.

  As shown in FIG. 7, the defective product blank discharge system 10 includes defective product blank discharge systems 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h arranged in multiple rows, for example, 8 rows. Among the blank discharge systems 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, the defective blank discharge system 10b, 10c processes the left blank 1 and the defective blank discharge systems 10d, 10e are in the center. The blank 1 in the next row is processed, and the blank blank discharge systems 10f, 10g process the blank 1 in the right row.

  That is, the sheet-like blank 5 is separated into the blank 1 and the blank portion 2 by breaking the connecting portion 3 in the stripper portion 17 (FIGS. 5A and 5B). In this case, 3 rows × 7 steps of blanks 1 are obtained from the sheet-like blanks 5, and the 3 rows of blanks 1 are sent from the outlet 17 a of the stripper unit 17 to the defective product blank discharge system 10 (see FIG. 6).

  Then, as shown in FIG. 7, in the blank blank discharge system 10, the blank 1 in the left column among the blanks 1 sent in the direction of the arrow is processed by the blank blank discharge systems 10b and 10c, and the blank 1 in the center column Are processed by the defective blank discharge systems 10d and 10e, and the blanks 1 in the right column are processed by the defective blank discharge systems 10f and 10g (see FIGS. 5A and 5B).

  Then, the defective blank 1 </ b> B is discharged to the outside in the defective blank discharge system 10, and the remaining good blank 1 </ b> A is sent to the blank transport unit 18.

  Next, the defective blank discharge system 10 will be further described with reference to FIGS. 2 to 4 and 8.

  As described above, the defective blank discharge system 10 has an eight-row structure, of which six rows of defective blank discharge systems 10b,... The blanks 1 are processed (see FIGS. 5A and 5B). For example, the blanks 1 are transported vertically in eight rows in the transport direction, and all eight rows of defective blank discharge systems are provided. 10a,..., 10h may be used to process the corresponding blank 1 with each defective blank discharge system 10a,.

  Since the defective blank discharge system 10a,..., 10g for each row having such a configuration has the same structure, only the defective blank discharge system 10 of one row is represented here as a representative. Shown as a discharge system 10.

  As shown in FIGS. 2 to 4 and 8, the defective product blank discharge system 10 includes a blank carry-in unit 27 </ b> A that horizontally conveys a plurality of blanks 1 including a non-defective product blank 1 </ b> A and a defective product blank 1 </ b> B, and a blank carry-in unit. A non-defective blank discharge mechanism 22A that is provided downstream of 27A and discharges the non-defective blank 1A in the horizontal direction, and a defective blank discharge mechanism 24A that is provided downstream of the blank carry-in portion 27A and discharges the defective blank 1B obliquely downward. It has.

  Further, a sorting mechanism 30 is provided between the blank carry-in portion 27A and the non-defective product blank discharge mechanism 22A and the defective product blank discharge mechanism 24A. This distribution mechanism 30 sends the non-defective blank 1A from the blank carry-in part 27A to the non-defective blank discharge mechanism 22A and the non-defective blank 1B from the blank carry-in part 27A to the defective blank discharge mechanism 24A. And a defective blank transport surface. Among these, the non-defective product blank transport surface and the defective product blank transport surface intersect with each other on the upstream side to form the sorting portion 33.

  Further, the distribution mechanism 30 is rotated upward or downward about a fulcrum 35 located on the downstream side thereof. That is, the distribution mechanism 30 is connected to the fulcrum 35 and is rotated upward or downward about the fulcrum 35 by the rotation mechanism 36.

  Next, the distribution mechanism 30 is described in detail with reference to FIGS. As shown in FIG. 8A, the distribution mechanism 30 is connected to the main body portion 31, the folded portion 32 that is folded downward toward the main body portion 31, and the end portion of the main body portion 31 opposite to the base portion 31 b. And an inclined portion 34 that extends downwardly from the main body portion 31 toward the distributing portion 33. In this case, the upper surface 31a of the main body 31 and the inclined portion 34 becomes a non-defective product blank transport surface, and the lower surface 32a of the folded portion 32 becomes a defective product blank transport surface. Moreover, you may comprise the distribution mechanism 30 only with the main-body part 31 (refer FIG.8 (b)). Or you may comprise the distribution mechanism 30 by the main-body part 31 and the folding | returning part 32 (refer FIG.8 (c)). Or you may comprise the distribution mechanism 30 by the main-body part 31 and the inclination part 34 (refer FIG.8 (d)). As shown in FIG. 8 (b), when the distribution mechanism 30 is composed of only the main body 31, the upper surface 31a of the main body 31 is the non-defective blank transport surface, and the lower surface 31c of the main body 31 is the defective blank transport surface. The dividing portion 33 is an end portion on the opposite side of the base portion 31 b of the main body portion 31. As shown in FIG. 8 (c), when the distribution mechanism 30 is also composed of a main body 31 and a folding part 32, the upper surface 31a of the main body part 31 is non-defective and the lower surface 32a of the folding part 32 is not. The non-defective blank conveyance surface and the sorting unit 33 serve as a continuous portion between the main body unit 31 and the folding unit 32. Further, as shown in FIG. 8D, when the distribution mechanism 30 is composed of a main body 31 and an inclined portion 34, the upper surfaces 31a and 34a of the main body 31 and the inclined portion 34 are non-defective blank transport surfaces and main body portions. 31 and lower surfaces 31c and 34c of the inclined portion 34 are defective blank conveyance surfaces, and the distributing portion 33 is an end portion of the inclined portion 34 on the side not connected to the main body portion 31. Further, as shown in FIGS. 8 (a), (b), (c), and (d), the main body 31 is preferably formed in a straight line, and as shown in FIGS. 32 is preferably formed to be curved inward.

  By the way, the blank carry-in portion 27A provided on the upstream side of the distribution mechanism 30 includes a plurality of conveyance rollers 27 and a first nip roller 21 sequentially provided from the upstream side, and includes between the conveyance rollers 27 and the first nip rollers. A pair of conveyor belts 25, 25 travels between 21, and the blank 1 is conveyed by the pair of conveyor belts 25, 25 and sent to the distribution mechanism 30 side.

  Further, as described above, the non-defective blank discharge mechanism 22 </ b> A is installed on the downstream side in the horizontal direction of the distribution mechanism 30, and the non-defective blank discharge mechanism 22 </ b> A has the second nip roller 22. The transport belts 25 and 26 travel through the second nip roller 22, and the non-defective blank 1 </ b> A is discharged to the blank transport unit 18 side by the transport belts 25 and 26.

  Further, the defective blank discharge mechanism 24A is installed on the downstream side of the distribution mechanism 30 and obliquely below, as described above. The defective blank discharge mechanism 24A includes the third nip roller 24 and the fourth nip roller 28. Yes. The conveying belt 25 runs on the rollers 24 and 28 on one side (opposite to the sorting mechanism 30) of the third nip roller 24 and the fourth nip roller 28, and the rollers on the other side (on the sorting mechanism 30 side). The additional conveyance belt 25a travels between 24 and 28, and the defective product blank 1B is discharged to the outside by the conveyance belt 25 and the additional conveyance belt 25a.

  Further, an intermediate roller 23 around which a conveyor belt 25 is stretched is disposed between the first nip roller 21 of the blank carry-in portion 27A and the second nip roller 22 of the non-defective blank discharge mechanism 22A. The intermediate roller 23 is located immediately above the distribution mechanism 30, and the distribution mechanism 30 is disposed in a space 23 </ b> A between the first nip roller 21, the second nip roller 22, and the intermediate roller 23.

  The space 23 </ b> A has an upstream end defined by the first nip roller 21, a downstream end defined by the second nip roller 22, and an upper end defined by the intermediate roller 23.

  The distribution mechanism 30 is disposed in the space 23A and can freely rotate upward or downward in the space 23A. Thus, since the distribution mechanism 30 can rotate in the space 23A, the rotation range of the distribution mechanism 30 can be widened, and the defective product blank 1B is directed obliquely upward from the blank carry-in portion 27A. Even if the defective blank 1B curled upward is conveyed, the defective blank 1B can be reliably discharged. In addition, since the light blank 1 is easy to be conveyed diagonally upward from the blank carrying-in part 27A, the defective blank discharge system of the present invention is, for example, the blank 1 composed of paper having a basis weight of 200 to 300 g / m 2. It is suitable with respect to the blank 1 comprised with 200-250 g / m <2> paper.

Note that the first nip roller 21 a distance W ₁ between the second nip roller 22 is preferably shorter than the length in the conveying direction of the blank 1. With this configuration, even if the blank 1 is horizontally long in the transport direction, the non-defective blank 1A distributed by the sorting mechanism 30 can be reliably sent to the non-defective blank discharge mechanism 22A side. The distance W ₁ indicates the distance from the center of the first nip roller 21 to the center of the second nip roller 22.

The first nip roller 21 a distance W ₂ between the third nip roller 24 is preferably shorter than the length in the conveying direction of the blank 1. With this configuration, even if the blank 1 is horizontally long in the transport direction, the defective product blank 1B distributed by the distribution mechanism 30 can be reliably sent to the defective product blank discharge mechanism 24 side. The distance W ₂ refers to the distance from the center of the first nip roller 21 to the center of the third nip roller 24.

  By the way, of the third nip roller 24 and the fourth nip roller 28, the rollers 24, 28 on one side (opposite to the sorting mechanism 30) are composed of rubber rollers, and the rollers 24 on the other side (on the sorting mechanism 30 side), Reference numeral 28 denotes a metal roller.

  The metal rollers 24 and 28 of the distribution mechanism 30 are always pressed by a pressing mechanism 29 having a spring 29a toward the rubber rollers 24 and 28 on the distribution mechanism 30 side.

  Next, the operation of the present embodiment having such a configuration will be described.

  First, as shown in FIG. 1, the printed sheet-like blank S is wound around the sheet feeding unit 12, and the sheet-like blank S is unwound from the sheet feeding unit 12.

  Next, in the detection unit 13, whether or not the printing state of the sheet blank S unwound from the paper feeding unit 12 is detected is detected, and the sheet blank S is conveyed by the sheet conveyance unit 14.

  As described above, the detection unit 13 detects whether or not the printing state of the sheet-like blank S unwound from the paper supply unit 12 is appropriate. In this case, the detection unit 13 may detect not only the printing state of the sheet-like blank S but also dirt, foreign matter, and the like of the sheet-like blank S.

  Specifically, the detection unit 13 detects the printing state, dirt, foreign matter, and the like applied to the blank 1 that is the product portion of the sheet-like blank S, and sends the detection result to the control unit 19.

  Next, the sheet-like blank S conveyed by the sheet conveying unit 14 is sent to the punching unit 15. Then, in the punching part 15, the sheet-like blank S is punched and the sheet-like blank 5 is obtained.

  As shown in FIGS. 5A and 5B, the sheet-fed blank 5 has a plurality of, for example, 3 × 7 blanks 1 serving as product parts, and a blank portion 2 formed between the blanks 1. Further, each blank 1 and blank portion 2 are separated from each other at portions other than the plurality of connecting portions 3.

  Thereafter, the sheet-like blank 5 having the blank 1 and the blank portion 2 produced in the punching portion 15 is sent to the stripper portion 17. And in this stripper part 17, the connection part 3 is fractured | ruptured, each blank 1 is isolate | separated from the blank part 2, and the blank 1 arrange | positioned in 3 rows and 7 steps | rows in this way is obtained.

  By the way, since each blank 1 separated from the blank portion 2 in the stripper unit 17 includes a non-defective product blank 1A in which the printing state is appropriate and a defective product blank 1B in which the printing state is inappropriate, the defective product blank B is represented by the present invention. It is necessary to discharge to the outside by the defective blank discharge system 10.

  Next, the operation of the defective product blank discharge system 10 will be described.

  First, the blanks 1 arranged in 3 rows × 7 stages from the outlet 17 a of the stripper unit 17 are fed into the defective blank discharge system 10.

  In this case, a signal from the detection unit 13 is input to the control unit 19, and the control unit 19 distinguishes each blank 1 into a non-defective product blank 1A and a defective product blank 1B based on the signal from the detection unit 13, and specifies these. .

  Next, the control unit 19 rotates the distribution mechanism 30 of the defective blank discharge system 10 around the fulcrum 35. The distribution mechanism 30 includes a linear main body portion 31, a folded portion 32 that curves inward, and an inclined portion 34.

  That is, when the control unit 19 determines that the non-defective blank 1A has entered the blank carry-in unit 27A of the defective product blank discharge system 10 based on the signal from the detection unit 13, the control unit 19 does not rotate the sorting mechanism 30 or And rotate downward (see FIG. 3). At this time, the non-defective blank 1 </ b> A that reaches the sorting mechanism 30 through the first nip roller 21 of the blank carry-in portion 27 </ b> A has an inclined surface 34 that constitutes a non-defective blank transport surface by the sorting portion 33 on the upstream side of the sorting mechanism 30. It is guided to the upper surface 34 a and the upper surface 31 a of the main body 31.

  Next, the non-defective blank 1A is sent from the non-defective blank transport surface of the distribution mechanism 30 to the second nip roller 22 side of the non-defective blank discharge mechanism 22A. Next, the non-defective blank 1 </ b> A is sent from the second nip roller 22 to the next process through the blank conveyance unit 18.

By the way, when conveying the non-defective blank 1A, the angle θ ₁ between the upper surface 31a of the main body 31 and the horizontal direction is in the range of 0 ° to 10 °, preferably 2 ° to 7 °, downward in the horizontal direction. Located in. When the main body 31 is directed upward with respect to the horizontal direction, it is conceivable that the non-defective blank 1 </ b> A is not properly transferred onto the non-defective blank transport surface and is caught by the distribution mechanism 30. Further, when the main body 31 is inclined downward by 10 ° or more, it takes a long time to rotate the sorting mechanism 30 and it is necessary to reduce the conveyance speed of the entire blank 1.

  On the other hand, when the control unit 19 determines that the defective product blank 1B has entered the blank carry-in unit 27A of the defective product blank discharge system 10, the control unit 19 rotates the sorting mechanism 30 upward (see FIG. 4).

  At this time, the defective blank 1 </ b> B that reaches the sorting mechanism 30 through the first nip roller 21 of the blank carry-in portion 27 </ b> A is turned up by the sorting portion 33 on the upstream side of the sorting mechanism 30 to constitute a defective blank transport surface. To the lower surface 32a.

  Next, the defective product blank 1B is sent from the defective product blank conveyance surface of the distribution mechanism 30 to the third nip roller 24 and the fourth nip roller 28 side of the defective product blank discharge mechanism 24A. Next, the defective product blank 1 </ b> B passes through the third nip roller 24 and the fourth nip roller 28 and is accumulated in the defective product blank accumulating unit 40 located below the fourth nip roller 28. Alternatively, the third nip roller 24 and the fourth nip roller may not be arranged, and a vacuum may be provided downstream of the defective product blank discharge mechanism 24A to suck the defective product blank 1B.

When transporting the defective blank 1B, the angle theta ₂ is 10 ° to 30 ° upwardly relative to the horizontal direction between the upper surface 31a and the horizontal direction of the main body portion 31, preferably located in the range of 10 ° to 25 ° To do.

  In this case, when the main body 31 is located at a position of less than 10 ° upward, the defective blank 1B curled upward moves to the upper surface 31a of the main body 31 and is not guided to the defective blank discharge mechanism 24A. Is also possible. Further, when the main body portion 31 is located at a position of 30 ° or more upward, a long time is required for the rotation time of the sorting mechanism 30, and the conveyance speed of the entire blank 1 needs to be slowed down. After the defective product blank 1B is conveyed to the defective product discharge mechanism 24A, the distribution mechanism 30 is preferably rotated to a position where the non-defective product blank 1A can be conveyed without rotating the distribution mechanism 30. By doing in this way, since the non-defective blank 1A can be conveyed without rotating the distribution mechanism 30, the production speed of the non-defective blank 1A can be increased. The position where the non-defective blank 1A can be conveyed without rotating the sorting mechanism 30 is the surface on the side where the sorting mechanism 30 is in contact with the non-defective blank 1A of the transport belt 25 in contact with the lower second two-up roller 22. It refers to the position below 26a.

  As described above, according to the present embodiment, the non-defective blank 1 </ b> A is guided from the non-defective blank transport surface of the distribution mechanism 30 to the non-defective blank discharge mechanism 22 </ b> A simply by rotating the distribution mechanism 30 about the fulcrum 35. The defective product blank 1B can be guided from the defective product blank conveyance surface of the distribution mechanism 30 to the defective product blank discharge mechanism 24A side. Thus, the defective product blank 1B can be easily and reliably separated from the good product blank 1A, and only the good product blank 1A can be sent from the blank transport unit 18 to the next process.

  Further, since the turn-up portion 32 of the distribution mechanism 30 has a shape that curves inward, it can be smoothly guided to the defective product discharge mechanism 24A.

  Furthermore, since the main body 31 of the sorting mechanism 30 has an inclined portion 34 inclined downward toward the distributing portion 33 on the upstream side thereof, the non-defective blank 1A curled downward by the inclined portion 34 is used. Even if it exists, it can guide | invade more reliably to the good quality blank discharge mechanism 22A.

  In the above-described embodiment, an example in which the platen type punching portion 15 is used as the punching portion 15 is shown, but the present invention is not limited thereto, and a rotary die cutter punching portion 15 may be used.

  Further, the distribution mechanism 30 is not limited to one stage, and may be provided in multiple stages along the transport direction. In this case, the distribution mechanism 30 may be provided further downstream of the non-defective product blank discharge mechanism 22A, or the distribution mechanism 30 may be provided further downstream of the defective product blank discharge mechanism 24A.

DESCRIPTION OF SYMBOLS 1 Blank 1A Good product blank 1B Defective product blank 3 Joint part 5 Sheet-fed blank 10 Defective product blank discharge system 12 Paper feed part 13 Detection part 14 Sheet conveyance part 15 Punching part 16 Sheet-fed conveyance part 17 Stripper part 18 Blank conveyance part 21 First nip roller 22 Second nip roller 22A Non-defective blank discharge mechanism 23 Intermediate roller 24 Third nip roller 24A Defective blank discharge mechanism 25 Conveying belt 25a Additional conveying belt 26 Conveying belt 27 Conveying roller 27A Blank loading section 28 Fourth nip roller 30 Distributing mechanism 31 Main body portion 31a Upper surface 31b of main body portion Base portion 31c of main body portion Lower surface 32 of main body portion Folded portion 32a Lower surface of folded portion 33 Distributing portion 34 Inclined portion 34a Upper surface of inclined portion 34c Lower surface 35 of inclined portion

Claims (6)

A blank carry-in section that horizontally transports a plurality of blanks including a non-defective product blank and a defective product blank,
A non-defective blank discharge mechanism that is provided on the downstream side of the blank carry-in portion and discharges the non-defective blank,
A defective blank discharge mechanism that is provided on the downstream side of the blank carry-in portion and discharges defective blanks;
A non-defective product from the blank carry-in section, which is provided between the blank carry-in section, the non-defective blank discharge mechanism and the defective blank discharge mechanism, and sends the non-defective blank from the blank carry-in section to the non-defective blank discharge mechanism. A sorting mechanism having a defective blank transport surface for sending a blank to the defective blank discharge mechanism side,
2. A defective blank discharge system characterized in that the distribution mechanism has a distribution unit on the upstream side, and the upstream distribution unit is rotatable around a downstream fulcrum.   2. The defective blank discharge system according to claim 1, wherein the non-defective blank discharge mechanism is provided on the downstream side in the horizontal direction of the distribution mechanism, and the defective blank discharge mechanism is provided on the lower downstream side of the distribution mechanism. . The blank carry-in portion includes a first nip roller that sandwiches the blank, and the non-defective blank discharge mechanism includes a second nip roller that sandwiches the blank.
A conveying belt is stretched around an intermediate roller provided between the first nip roller, the second nip roller, and the first nip roller and the second nip roller,
3. The defective blank discharge system according to claim 1, wherein the sorting mechanism rotates in a space between the first nip roller, the second nip roller, and the intermediate roller.   4. The defective blank discharge system according to claim 3, wherein the intermediate roller is disposed immediately above the distribution mechanism.   When the defective blank is sent from the blank carry-in section to the defective blank discharge mechanism side, the non-defective blank conveyance surface of the sorting mechanism is located in the range of 10 ° to 30 ° upward with respect to the horizontal direction, and the blank carry-in section When the non-defective blank is fed from the non-defective blank to the non-defective blank discharge mechanism side, the non-defective blank transport surface of the sorting mechanism is located in the range of 0 ° to 10 ° downward with respect to the horizontal direction. 4. The defective blank discharge system according to any one of 4 above.   When a defective blank is sent from the blank carry-in section to the defective blank discharge mechanism side, the non-defective blank conveyance surface of the sorting mechanism is located in the range of 10 ° to 25 ° upward with respect to the horizontal direction, and the blank carry-in section The non-defective blank transport surface of the sorting mechanism is located in a range of 2 ° to 7 ° downward with respect to the horizontal direction when the non-defective blank is sent to the non-defective blank discharge mechanism side. Defective product blank discharge system.

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