Abstract:
A nuclear reactor is provided with a core which includes a new fuel part and a burning part at which neutrons are generated and fuel is burned. The burning part moves in a direction toward the new fuel part from the beginning to the end of the combustion cycle. The plurality of the fuel assemblies of the core include the fuel assemblies which are fastened to the core and the fuel assemblies which can move in the longitudinal direction of the fuel assemblies. By pulling out the fuel assemblies from the core, the nuclear reactor can be made to stop. Further, by inserting fuel assemblies into the core from the pulled out state, the nuclear reactor is started up.

Description:
TECHNICAL FIELD 
       [0001]    The present invention relates to a production device and production method of a linked packaged product. 
       BACKGROUND ART 
       [0002]    Known in the art is a production device of linked packaged products which is comprised of a predetermined set number of packages which are linked in a line, the production device of linked packaged products forming and transporting a strip of linked packages comprised of a plurality of packages linked in a line, cutting the strip of linked packages each time the set number of the packages are successively transported and, when the strip of linked packages includes a defective package, cutting the strip of linked packages so that a different number of the packages from the set number are linked and thereby forming good products not including the defective package and defective products including the defective package, and guiding the good products to a normal route and eliminating the defective products from the normal route (see PLT 1). By doing this, for example, the mass of the good products and the mass of the defective products differ from each other. Therefore, it becomes possible to easily detect the defective products and eliminate them from the normal route. 
       CITATIONS LIST 
     Patent Literature 
       [0000]    
       
         
           
             PTL 1: Japanese Patent Publication No. 2004-352287A 
           
         
       
     
       SUMMARY OF INVENTION 
     Technical Problem 
       [0004]    However, in the above-mentioned production device, the defective products include the good packages. Therefore, when the defective products are eliminated from the normal route, the good packages will also be eliminated together with the defective packages. That is, it is not possible to effectively use the good packages to produce the good products. As a result, the production efficiency of the good products is liable to fall. 
       Solution to Problem 
       [0005]    According to first aspect of the present invention, there is provided a production device of linked packaged products comprised of a predetermined first set number of packages linked in a line, 
         [0006]    the production device of linked packaged products comprising
       a forming unit which forms and transports a strip of linked packages which is comprised of a plurality of packages linked in a line,   a judging unit which judges if the packages in the strip of linked packages are respectively good packages or defective packages,   a cutting unit which cuts the transported strip of linked packages, which cutting unit cuts the strip of linked packages each time the first set number of the good packages are successively transported and cuts the strip of linked packages between the good package and the defective package, whereby good products which are comprised of the first set number of the good packages, fractional products which are comprised of a number of the good packages less than the first set number, and defective products which are comprised of at least one of the defective packages are formed, and   a routing unit which transports the good products, the fractional products, and the defective products along respectively different transport routes.       
 
         [0011]    According to second aspect of the present invention, there is provided a production method of linked packaged products comprised of a predetermined first set number of packages linked in a line, 
         [0012]    the production method of linked packaged products comprising
       a forming step of forming and transporting a strip of linked packages which is comprised of a plurality of packages linked in a line,   a judging step of judging if the packages in the strip of linked packages are respectively good packages or defective packages,   a cutting step of cutting the transported strip of linked packages, which the cutting step cuts the strip of linked packages each time the first set number of the good packages are successively transported and cuts the strip of linked packages between the good package and the defective package, whereby good products which are comprised of the first set number of the good packages, fractional products which are comprised of a number of the good packages less than the first set number, and defective products which are comprised of at least one of the defective packages are formed, and   a routing step of transporting the good products, the fractional products, and the defective products along respectively different transport routes.       
 
       Solution to Problem 
       [0017]    The production efficiency of the linked packaged product can be raised. 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0018]      FIG. 1A  is a bottom view of a linked packaged product. 
           [0019]      FIG. 1B  is a top view of a linked packaged product. 
           [0020]      FIG. 1C  is a side view of a linked packaged product. 
           [0021]      FIG. 2  is a schematic overall view of a linked packaged product production device in an embodiment according to the present invention. 
           [0022]      FIG. 3  is a diagram to explain a cutting action in the embodiment of  FIG. 2 . 
           [0023]      FIG. 4  is a schematic partial view of a linked packaged product production device in another embodiment of the present invention. 
           [0024]      FIG. 5  is a diagram to explain a cutting action in the embodiment of  FIG. 4 . 
       
    
    
     DESCRIPTION OF EMBODIMENTS 
       [0025]      FIGS. 1A ,  1 B, and  10  respectively show a bottom view, top view and side view of a linked packaged product  1 . Referring to  FIGS. 1A ,  1 B, and  10 , the linked packaged product  1  is comprised of a predetermined first set number of packages  2 . These packages  2  are linked together in a line. 
         [0026]    The packages  2  are respectively comprised of contents  3  and packaging materials  4  which package the contents  3  and are sealed by seal parts  5  which extend in the lateral direction at the two ends in the longitudinal direction and seal parts  6  which extend in the longitudinal direction. These packages  2  are linked with each other through weakened lines  7  such as perforated lines provided at the seal parts  5 . The linked packaged product  1  is cut along the weakened lines  7  whereby individual packages  2  are obtained. 
         [0027]    The packages  2  are for example comprised of packages of absorbent articles. That is, the contents  3  are comprised of absorbent articles such as a sanitary napkins and diapers, while the packaging materials  4  are comprised of sheet materials suitable for packaging the absorbent articles. Further, at the inside surfaces of the packaging materials  4 , an adhesive or tackifier is applied. Due to this, the contents  3  are fastened to the packaging materials  4 . By doing this, movement of contents  3  inside of the packages  2  can be suppressed. 
         [0028]    The first set number can be set to a number of 2 or more. In the embodiment according to the present invention, it is set to 10. 
         [0029]      FIG. 2  shows the production device  10  of the linked packaged products  1 . Referring to  FIG. 2 , the linked packaged product production device  10  is provided with a forming unit  10 A, judging unit  103 , cutting unit  10 C, and routing unit  10 D. 
         [0030]    In the forming unit  10 A, a strip of linked packages which is comprised of a plurality of packages  2  linked in a line is formed and transported. Specifically, a roller  21  and belt conveyor  22  are used to unwind the packaging material  4  from a roll  4 A which is continuously transported in the form of a web. On the other hand, for example, a negative pressure suction type of belt conveyor  23  and roller  24  are used to transport the contents  3  and successively supply them on the packaging material  4  which is being transported. 
         [0031]    Here, the belt conveyor  23  receives the contents  3  from the content production device P which successively produces and discharges the contents  3 . That is, the linked packaged product production device  10  is directly connected to the content production device P. 
         [0032]    Further, the adhesive applicator  25  is used to intermittently apply an adhesive such as a hot melt adhesive to the packaging material  4 . As a result, the contents  3  are fastened to the packaging material  4 . Note that, the contents  3  may also be fastened by a tackifier to the packaging material  4  or may not be fastened to the packaging material  4 . 
         [0033]    The contents  3  and packaging material  4  are next transported by the belt conveyor  26 . At this time, a guide member  27  which is arranged facing the belt conveyor  26  is used to bend the packaging material  4  so as to surround the contents  3 . In this case, the two edges of the packaging material  4  in the lateral direction are overlaid and an overlaid part which extends in the vertical direction is formed. As a result, the packaging material  4  becomes a tubular shape which holds the contents  3 . 
         [0034]    The tubular shape packaging material  4  which holds the contents  3  is next gripped between a pair of belt conveyors  28  and  29  which are arranged facing each other while being further transported in the longitudinal direction and transported to a sealer  30 . At the sealer  30 , first, the above-mentioned overlaid parts which are formed at the packaging material  4  are sealed whereby the seal parts  6  ( FIG. 1B ) is formed. Next, between the adjoining contents  3 , the packaging material  4  is sealed in the lateral direction whereby seal parts  5  ( FIGS. 1A ,  1 B, and  1 C) are formed. Further, the seal parts  5  are formed with weakened lines  7  ( FIGS. 1A and 1B ). As a result, the packages  2  which are comprised of the contents  3  and the packaging material  4  are formed. At the same time, a strip of linked packages  8  which is comprised of a plurality of packages  2  linked in a line is formed. 
         [0035]    The strip of linked packages  8  is gripped between a pair of belt conveyors  31  and  32  which are arranged facing each other while being transported in the longitudinal direction and is transported to the cutting unit  10 C. 
         [0036]    At the cutting unit  10 C, the transported strip of linked packages  8  is cut. That is, the strip of linked packages  8  is gripped between a pair of rollers  33  and  34  which are arranged facing each other while being transported. When the strip of linked packages  8  should not be cut, the rollers  33  and  34  transport the strip of linked packages  8  at substantially the same speed as the belt conveyors  31  and  32 . As opposed to this, when the strip of linked packages  8  should be cut, the rollers  33  and  34  transport the strip of linked packages  8  at a higher speed than the belt conveyors  31  and  32 . As a result, the downstream side part of the strip of linked packages  8  is gripped by the belt conveyors  31  and  32 , so the strip of linked packages  8  is cut along the weakened line  7 . In this way, a product  9  which is comprised of at least one of the packages  2  is formed. 
         [0037]    The product  9  is next gripped between the pair of rollers  35  and  36  which are arranged facing each other while being transported in the longitudinal direction and is transported to the routing unit  10 D. 
         [0038]    At the routing unit  10 D, the product  9  is, for example, transported by a negative pressure suction type of belt conveyor  37  and belt conveyors  38  and  39  which are arranged facing the belt conveyor  37 . 
         [0039]    A first transport route T 1  passes through between The belt conveyor  37  and the belt conveyor  39 , a second transport route T 2  passes through between the belt conveyor  38  and the belt conveyor  39 , and a third transport route T 3  passes through between the belt conveyor  35  and the belt conveyor  38 . 
         [0040]    Further, deflectors  40  and  41  are provided which deflect the products  9  which are transported by the belt conveyor  37  by for example air jets. When the deflector  40  is operated, a product  9  is separated from the belt conveyor  37  and transported along the third transport route T 3 . When the operation of the deflector  40  is stopped and the deflector  41  is operated, a product  9  is transported along the second transport route T 2 . When the operations of the deflectors  40  and  41  are stopped, a product  9  is transported along the first transport route T 1 . In this way, the products  9  are routed to different transport routes T 1 , T 2 , and T 3 . 
         [0041]    Note that, sensors  42  and  43  which detect the positions of the products  9  are attached to the deflectors  40  and  41 . The outputs from these sensors  42  and  43  are used as the basis for startup of the deflectors  40  and  41 . As a result, the products  9  which should be transported to the second transport route T 2  and third transport route T 3  can be reliably deflected. 
         [0042]    As explained above, at the forming unit  10 B, the packages  2  are formed. However, the packages  2  may include not only good packages, but also defective packages. The defective packages include, for example, defective packaging packages or defective content packages. The defective packaging packages include, for example, ones where the packaging material  4  itself is defective, ones where the seal parts  5  and  6  are defective, ones where the contents  3  are not fastened at the right positions with respect to the packaging materials  4 , etc. On the other hand, the defective content packages include ones where the contents  3  themselves are defective. 
         [0043]    Therefore, the judging unit  10 B judges if the packages  2  in the strip of linked packages  8  are good packages or defective packages. This judgment can be performed, for example, by a sensor  44  which is provided at the content production device P and which detects defects of the contents  3 , a sensor  45  which detects defects of the packaging material  4 , a sensor  46  which detects defects of the adhesive, a sensor  47  which detects defects of the bent packaging material  4 , a sensor  48  which detects defects of the seal parts  5  and  6 , a sensor  49  which detects defects of positions of the contents  3  with respect to the packaging material  4 , etc. 
         [0044]    The linked packaged product production device  10  is provided with a controller  50 . The controller  50  is, for example, comprised of a computer which is provided with a CPU, memory, input port, and output port. The outputs of the sensors  42 ,  43 ,  44 ,  45 ,  46 ,  47 ,  48 , and  49  are input to the controller  50 . For example, the sealer  30  has a pulse generator  51  attached to it which generates a pulse each time a package  2  is formed. The pulses which are generated by this pulse generator  51  are also input to the controller  50 . Therefore, at the controller  50 , it is judged if the packages  2  to be transported to the cutting unit  100 , in particular the rollers  33  and  34 , are good packages or defective packages. On the other hand, the adhesive applicator  25 , rollers  33  and  34  in the cutting unit  100 , and deflectors  40  and  41  are also connected to the controller  50  and are controlled based on signals from the controller  50 . 
         [0045]    Now, in the above-mentioned cutting unit  100 , the strip of linked packages  8  is cut each time the first set number of the good packages are successively transported. As a result, the good products which are comprised of the first set number of good packages, that is, linked packaged products  1 , are formed. 
         [0046]    Further, the strip of linked packages  8  is cut between a good package and a defective package. As a result, fractional products which are comprised of a number of the good packages smaller than the first set number and defective products which are comprised of at least one of the defective packages are formed. 
         [0047]    Furthermore, the strip of linked packages  8  is cut each time a predetermined second set number of the defective packages are successively transported. As a result, the above-mentioned defective product is at most comprised of the second set number of defective packages. Note that, the second set number is set to a number of 1 or more. In this embodiment according to the present invention, it is set to 5. Note that, the second set number may be the same as the first set number. 
         [0048]    In this way, the above-mentioned products  9  are comprised of the good products, fractional products, and defective products. 
         [0049]    Referring to  FIG. 3 , the cutting action at the cutting unit  100  will be further explained. Note that, in  FIG. 3 , M shows the direction of transport of the strip of linked packages  8 . 
         [0050]    As shown in  FIG. 3  by X 1 , when the packages  2  which are transported to the cutting unit  100  switch from good packages  2 G to defective packages  2 D, the strip of linked packages  8  is cut. As a result, a fractional product  1 F is formed. Next, as shown by X 2 , when the packages  2  which are transported switch from defective package  2 D to good packages  2 G, the strip of linked packages  8  is cut. As a result, a defective product  1 D is formed. Next, as shown by X 3 , when good packages  2 G are successively transported in exactly the first set number, the strip of linked packages  8  is cut whereby a good product  1 G is formed. 
         [0051]    Next, as shown by X 4 , when the packages  2  which are transported switch from good packages  2 G to defective packages  2 D, the strip of linked packages  8  is cut and a fractional product  1 F is formed. Next, as shown by X 5 , when defective packages  2 D are transported successively in exactly the second set number, the strip of linked packages  8  is cut whereby a defective product  1 D is formed. 
         [0052]    On top of this, the good products  1 G are transported along the first transport route T 1 , the fractional products  1 F are transported along the second transport route T 2 , and the defective products  1 D are transported along the third transport route T 3 . That is, the good products  1 G, fractional products  1 F, and defective products  1 D are transported along respectively different transport routes T 1 , T 2 , and T 3 . 
         [0053]    Note that, whether the products  9  are the good products  1 G, fractional products  1 F, or defective products  1 D is determined by the controller  50  based on whether the packages  2  to be transported to the cutting unit  10 C are the good packages  2 G or defective packages  2 D. 
         [0054]    By doing this, the defective products  1 D do not include good packages  2 G. Therefore, the production efficiency of the good products  1 G, that is, the linked packaged products  1 , can be raised. Note that, the defective products  1 D are discarded. 
         [0055]    Further, the fractional products  1 F do not include the defective package  2 D. Therefore, the fractional products  1 F are linked with each other so that the first set number of the good packages  2 G are linked, whereby the good products  1 G can be formed. Therefore, the production efficiency of the linked packaged products  1  can be further raised. 
         [0056]    Furthermore, the defective products  1 D are at most comprised of a second set number of defective packages  2 D. That is, the defective products  1 D are prevented from becoming excessively long. Therefore, the defective products  1 D can be transported well along the third transport route T 3 . 
         [0057]    Note that, in an embodiment according to the present invention, even if the content  3  itself is defective, the defective content  3  is not discharged from the content production device P. That is, the defective content  3  is supplied to the linked packaged product production device  10  and packaged. Therefore, the forming unit  10 A successively packages the contents  3  which are successively supplied from the content production device P by the continuous packaging material  4  to form the strip of linked packages  8 . By doing this, all of the packages  2  contain the contents  3 . 
         [0058]      FIG. 4  shows another embodiment according to the present invention. Referring to  FIG. 4 , at the routing unit  10 D, the products  9  are transported by the belt conveyor  37  and the belt conveyors  38   a ,  38 , and  39  which are arranged facing the belt conveyor  37 . 
         [0059]    A first transport route T 1  passes through between the belt conveyor  37  and the belt conveyor  39 , a second transport route T 2  passes through between the belt conveyor  38  and the belt conveyor  39 , a third transport route T 3  passes through between the belt conveyor  38   a  and the belt conveyor  38 , and a fourth transport route T 4  passes through between the belt conveyor  35  and the belt conveyor  38   a.    
         [0060]    Further, deflectors  40   a ,  40 , and  41  are provided which deflect the products  9  which are transported by the belt conveyor  37  by for example air jets. When the deflector  40   a  is operated, the products  9  are separated from the belt conveyor  37  and are transported along the fourth transport route T 4 . When the operation of the deflector  40   a  is stopped while the deflector  40  is operated, the products  9  are transported along the third transport route T 3 . When the operations of the deflectors  40   a  and  40  are stopped while the deflector  41  is operated, the products  9  are transported by the second transport route T 2 . When the operations of the deflectors  40   a ,  40 , and  41  are stopped, the products  9  are transported along the first transport route T 1 . 
         [0061]    Furthermore, sensors  42   a ,  42 , and  43  which detect the positions of the products  9  are attached to the deflectors  40   a ,  40 , and  41 . 
         [0062]    In the embodiment which is shown in  FIG. 4 , the judging unit  10 B judges if the packages  2  in the strip of linked packages  8  are the good packages, defective packaging packages, or defective content packages. 
         [0063]    On top of this, at the cutting unit  10 C, the strip of linked packages  8  is cut each time the first set number of the good packages are successively transported. As a result, the good products which are comprised of the first set number of the good packages, that is, the linked packaged products  1 , are formed. 
         [0064]    Further, the strip of linked packages  8  is cut between the good package and defective packaging package, between the good package and defective content package, and between the defective packaging package and defective content package. As a result, the fractional product, a defective packaging product which is comprised at least one of the defective packaging packages, and a defective content product which is comprised of at least one of the defective content packages are formed. 
         [0065]    Furthermore, the strip of linked packages  8  is cut each time a second set number of the defective packaging packages or defective content packages are successively transported. As a result, the defective packaging products and defective content products are respectively comprised of at most the second set number of the defective packaging packages and defective content packages. 
         [0066]    Therefore, in this case, the products  9  are comprised of the good products, fractional products, defective packaging packages, and defective content products. 
         [0067]    Referring to  FIG. 5 , the cutting action at the cutting unit  100  will be further explained. Note that, in  FIG. 5 , M shows the direction of transport of the strip of linked packages  8 . 
         [0068]    In  FIG. 5 , as shown in Y 1 , when the packages  2  which are transported to the cutting unit  100  switch from good packages  2 G to for example defective content packages  2 C, the strip of linked packages  8  is cut. As a result, a fractional product  1 F is formed. Next, as shown by Y 2 , when the packages  2  which are transported switch from defective content packages  2 C to defective packaging packages  2 P, the strip of linked packages  8  is cut. As a result, a defective content product  10  is formed. Next, as shown by Y 3 , when the packages  2  which are transported switch from defective packaging packages  2 P to good packages  2 G, the strip of linked packages  8  is cut. As a result, a defective packaging product  1 P is formed. Next, as shown by Y 4 , when good packages  2 G are successively transported in exactly the first set number, the strip of linked packages  8  is cut and a good product  1 G is formed. 
         [0069]    Next, as shown by Y 5 , when the packages  2  which are transported switch from good packages  2 G to for example defective packaging packages  2 P, the strip of linked packages  8  is cut and a fractional product  1 F is formed. Next, as shown by Y 6 , when defective packaging packages  2 P are transported successively in exactly the second set number, the strip of linked packages  8  is cut and a defective packaging product  1 P is formed. 
         [0070]    On top of this, the good products  1 G are transported along the first transport route T 1 , the fractional products  1 F are transported along the second transport route T 2 , the defective packaging products  1 P are transported along the third transport route T 3 , and the defective content products  10  are transported along the fourth transport route T 4 . That is, the good products  1 G, fractional products  1 F, defective packaging products  1 P, and defective content products  10  are transported along respectively different transport routes T 1 , T 2 , T 3 , and T 4 . 
         [0071]    By doing this, the defective packaging products  1 P and defective content products  10  can be separately routed. The defective content products  1 C are discarded. 
         [0072]    As opposed to this, good contents  3  are taken out from the packages  2  forming the defective packaging products  1 P. Next, these contents  3  are normally packaged by the packaging material  4  whereby the good packages  2 G are formed. 
         [0073]    The present application asserts the benefit of Japanese Patent Application No. 2011-018152, of which the disclosure as a whole is cited by reference here. 
       REFERENCE SIGNS LIST 
       [0000]    
       
           1  linked packaged product 
           2  package 
           3  content 
           4  packaging material 
           10  linked packaged product production device 
           10 A forming unit 
           10 B judging unit 
           10 C cutting unit 
           10 D routing unit