JP5515891B2 - Sheet stacking mechanism - Google Patents

Description

  The present invention relates to a sheet stacking mechanism that stacks rectangular sheets transported by a first transport unit on a second transport unit, and in particular, can quickly push out air from between the stacked sheets. It is related with the sheet | seat lamination | stacking mechanism which can be conveyed efficiently without breaking the laminated | stacked sheet | seat.

  In general, a rotary printing machine having a mechanism for cutting a printed web into a sheet or punching into a sheet is provided with a stacking mechanism (sheet stacking mechanism) for stacking the cut or punched sheets. When sheets are stacked to a predetermined height by this stacking mechanism, the stacked sheets are conveyed to the next process by a belt conveyor, a roller conveyor, or the like.

JP 2007-254125 A

  However, even among the sheets stacked by such a stacking mechanism, especially between the sheets positioned above, since there are few sheets stacked thereon, the load received from above is small, and an air layer is easily formed. . This reduces the friction between the upper and lower sheets of the formed air layer, causing a problem that the sheets are displaced during conveyance and the stacked sheets are broken. In this case, the collapsed sheet is clogged in the gap of the conveyor, damages subsequent sheets, and generates a large amount of defects.

  For this reason, a supervisor who monitors whether or not the stacked sheets are collapsed is arranged, and when the sheets collapse, they are pulled out. Further, when the laminated sheets collapsed on a large scale, the line was stopped. However, when restarting the operation of the stopped line, it takes time until the conveyance speed is stabilized and the relationship between the printed pattern position and the sheet cutting position is stabilized in quality. For this reason, in addition to the time loss during the line stop, there is a problem that the material loss from the restart of operation until the quality is stabilized is large.

  In order to cope with this, there is known an air bleeder that pressurizes an upper surface of a stack of sheets stacked by a stacking mechanism with a pressure roller to release air from the sheet stack (for example, a patent). Reference 1).

  However, the air venting device shown in Patent Document 1 is installed off-line at a location away from the stacking mechanism. Thus, in order to release the air from the sheet stack, the unstacked sheet stack must be transported from the stacking mechanism to the air release device. In this case, the sheet stack may collapse while being conveyed to the air bleeding device. In addition, as described above, since the stack of sheets is conveyed off-line from the stacking mechanism to the air bleeding device, there is a problem that the efficiency of the entire printing press is lowered.

  The present invention has been made in consideration of such points, and can quickly extrude air from between the stacked sheets to efficiently convey the stacked sheets without breaking them. An object of the present invention is to provide a sheet stacking mechanism that can be used.

  The present invention includes a first conveying unit that conveys a rectangular sheet, a sheet conveyed from the first conveying unit, a second conveying unit that conveys the laminated sheet, and a vertically extending, The front end of the sheet conveyed from the first conveying means is brought into contact, and a laminated guide member that guides the sheet in a stacked manner on the second conveying means, and the laminated guide member is provided to press the laminated sheet downward. A pressing device, and the pressing device includes an arm swingably provided with respect to the laminated guide member, and a pressing roller rotatably provided at a tip portion of the arm. The sheet conveyed from the first conveying means can be inserted between the uppermost sheet of the laminated sheets and the pressing roller, and the laminated sheet is pressed against the uppermost sheet. Sea that is characterized by A laminated mechanism.

  In the present invention, while the second conveying means conveys the laminated sheet, the sheet enters the lamination area where the sheets are laminated, receives the sheet conveyed from the first conveying means, and puts it in a laminated state. A sheet stacking mechanism further comprising a temporary stacking part, wherein the pressing device is movable up and down with respect to the stacking guide member, and the sheet stacking unit raises the pressing device when entering the stacking region. It is.

  According to the present invention, the pressing device further includes a contact plate on which the sheet temporary stacking portion can freely come into contact, and when the sheet temporary stacking portion enters the stacking region, the pressing device lifts the pressing device by contacting the pressing plate of the pressing device. It is a sheet lamination mechanism characterized by making it.

  In the present invention, when the sheet temporary stacking portion enters the stacking region, the pressing device is provided below the arm so as to form a space for inserting a sheet between the sheet temporary stacking portion and the pressing roller. The sheet stacking mechanism further includes a stopper for locking the rotation.

  In the present invention, while the second conveying means conveys the laminated sheet, the sheet enters the lamination area where the sheets are laminated, receives the sheet conveyed from the first conveying means, and puts it in a laminated state. The sheet stacking mechanism further includes a temporary stacking part, and the sheet temporary stacking part is a sheet stacking mechanism that pushes up a pressing roller of a pressing device when entering the stacking region.

  In the present invention, while the second conveying means conveys the laminated sheet, the sheet enters the lamination area where the sheets are laminated, receives the sheet conveyed from the first conveying means, and puts it in a laminated state. A temporary stacking portion is further provided, and when the sheet temporary stacking portion enters the lamination region, a space for inserting a sheet is formed between the sheet temporary stacking portion and the pressing roller of the pressing device. This is a sheet stacking mechanism.

  The present invention is the sheet stacking mechanism, wherein the pressing device further includes a stopper for locking the downward rotation of the arm so as to form a space for inserting the sheet.

  According to the present invention, the pressing roller of the pressing device is brought into contact with the uppermost sheet among the sheets stacked on the second conveying means, and the air interposed between the stacked sheets is pushed outward. be able to. Further, since the sheet conveyed from the first conveying unit is pressed while being stacked on the second conveying unit, it is possible to prevent the sheet conveying efficiency from being lowered. Thus, air can be quickly pushed out from between the stacked sheets, and the stacked sheets can be efficiently conveyed without breaking.

FIG. 1 is a perspective view showing an outline of a sheet stacking mechanism according to a first embodiment of the present invention. FIG. 2 is a side view showing the configuration of the sheet stacking mechanism according to the first embodiment of the present invention. FIG. 3 is a front view of FIG. 4A, 4B, 4C, and 4D are side views showing a method of laminating sheets in the sheet laminating mechanism according to the first embodiment of the present invention. FIGS. 5A, 5B, 5C, and 5D are side views showing a method of laminating sheets in the sheet laminating mechanism according to the second embodiment of the present invention. FIGS. 6A, 6B, 6C, and 6D are side views showing a method of laminating sheets in the sheet laminating mechanism according to the third embodiment of the present invention.

  Hereinafter, a sheet stacking mechanism according to an embodiment of the present invention will be described with reference to the drawings.

First Embodiment First, a sheet stacking mechanism according to a first embodiment of the present invention will be described with reference to FIGS.

  The sheet stacking mechanism 10 is incorporated in a part of a printing machine 1 such as a rotary printing machine. As shown in FIG. 1, the sheet stacking mechanism 10 conveys a rectangular sheet 2 on which printing has been performed. 1 conveyance means) 3 and a second conveyor (second conveyance means) 4 for conveying the sheets 2 conveyed from the first conveyor 3 and conveying the laminated sheets 2. Among these, the second conveyor 4 is moved up and down by the conveyor driving unit 5. Moreover, the 3rd conveyor 6 is provided in the conveyance direction downstream side of the 2nd conveyor 4, This 3rd conveyor 6 conveys the laminated body of the sheet | seat 2 conveyed from the 2nd conveyor 4 to the following process. It is supposed to be.

  Further, as shown in FIG. 2, the sheet stacking mechanism 10 extends in the vertical direction, contacts the front end of the sheet 2 conveyed from the first conveyor 3, and stacks the sheet 2 on the second conveyor 4. It has three joggers (laminated guide members) 20 for guiding, and a pressing device 20 that is provided in each jogger 20 and presses the stacked sheets 2 downward. Among these, each jogger 20 is connected and fixed by a jogger frame 21.

  As shown in FIGS. 2 and 3, the pressing device 30 includes a base portion 31 provided on each jogger 20 so as to be movable up and down, and an arm 32 provided on the base portion 31 so as to be swingable. In the present embodiment, a long hole 22 extending in the vertical direction is formed in the jogger 20, and the base end portion of the arm 32 penetrates the base portion 31 and is slidable in the long hole 22. Are connected to each other.

  A pressing roller 34 is rotatably provided at the distal end portion 32 of the arm 32 via a roller shaft 35. The pressing roller 34 can insert the sheet 2 conveyed from the first conveyor 3 between the uppermost sheet 2 of the stacked sheets 2 and the pressing roller 34, and the uppermost of the stacked sheets 2. The laminated sheet 2 is pressed against the sheet 2. That is, the pressing roller 34 can insert the sheet 2 between the uppermost sheet 2 and has a mass enough to press the stacked sheets 2. If it has such mass, the material of the press roller 34 will not be specifically limited, Steel material, aluminum alloy, resin, etc. can be used suitably. As shown in FIG. 1, one pressing roller 34 may be provided at a position corresponding to the jogger 20. As shown in FIG. 3, the two corresponding arms 32 are arranged on both sides of the jogger 20. You may make it each provide the press roller 34 between.

  Each arm 32 is extendable and contractible in the axial direction. Further, each pressing roller 34 is attached to the roller shaft 35 in a replaceable manner. In this manner, the length of the arm 32 is adjusted according to the material, size, thickness, and the like of the stacked sheets 2 and can be replaced with an appropriate pressing roller 34.

  When a temporary stacking fork (sheet temporary stacking section) 40, which will be described later, enters the base 31 of the pressing device 30 and enters the stacking area where the sheets 2 are stacked (the upper area of the upstream portion in the transport direction of the second conveyor 4) Further, an arm 32 is formed so as to form a space 36 (a vertical gap when viewed from the side in FIG. 2) for inserting the sheet 2 between the fork member 41 of the temporary stacking fork 40 and the pressing roller 34. A stopper 37 is provided to stop the downward rotation of.

  In addition, a base plate 31 is provided on the base 31 of the pressing device 30 via a support 39, and a fork member 41 of a temporary stacking fork 40 can abut on the base plate 38. Each contact plate 38 is disposed on both sides of the jogger 20 so as to correspond to the position of the fork member 41 of the temporary stacking fork 40.

  In such a pressing device 30, when the arm 32 is locked to the stopper 37, the pressing roller 34 is disposed at a position higher than the lower end of the contact plate 38, and the fork member of the temporary stacking fork 40 that has entered the stacking region. A space 36 is formed between 41 and the pressing roller 34.

  As shown in FIG. 1, a temporary stacking fork 40 is provided above the third conveyor 6. The temporary stacking fork 40 enters the stacking area while the second conveyor 4 is transporting the stack of sheets, and receives the sheets 2 transported from the first conveyor 3 so as to be stacked. (See FIG. 4D).

  The temporary stacking fork 40 has six fork members 41 extending in the horizontal direction. A fork roller 42 is provided at the tip of each fork member 41 so as to be able to contact the contact plate 38 of the pressing device 30. Further, these fork members 41 are connected by a fork frame 43, and come into contact with the corresponding abutting plate 38 when entering the stacking region to raise the pressing device 30. Note that the temporary fork 40 is allowed to enter the stacking region by a fork drive unit 44.

  A non-contact sensor (not shown) for detecting the height of the stacked sheets 2 is provided above the second conveyor 4. Based on the height of the sheet 2 detected by the non-contact sensor, the conveyor driving unit 5 is driven, and the second conveyor 4 is lowered stepwise.

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

  As shown in FIG. 4A, the sheet 2 conveyed from the first conveyor 3 is stacked on the second conveyor 4 that is stopped.

  In this case, first, the sheet 2 conveyed from the first conveyor 3 is inserted between the pressing roller 34 of the pressing device 30 and the uppermost sheet 2 among the sheets 2 stacked on the second conveyor 4. . Here, the sheet 2 is continuously conveyed from the first conveyor 3. As a result, the sheet 2 inserted under the pressing roller 34 is pressed by the succeeding sheet 2 and advances between the pressing roller 34 and the sheet 2, and the front end of the sheet 2 comes into contact with the jogger 20 and is blocked. . In this way, the sheets 2 are laminated. Here, the pressing roller 34 is rotatable with respect to the arm 32. For this reason, the sheet | seat 2 can be laminated | stacked smoothly.

  While the sheets 2 are stacked, the height of the stacked sheets 2 increases. Here, as described above, the arm 32 of the pressing device 30 is swingably attached to the base 31. Thus, the pressing roller 34 can follow the height of the stacked sheets 2 and can press the stacked sheets 2.

  Further, while the sheets 2 are being stacked, the height of the stacked sheets 2 is detected by a non-contact sensor provided above the second conveyor 4. Based on the height of the sheet 2 detected by the non-contact sensor, the conveyor driving unit 5 is driven and the second conveyor 4 is lowered stepwise. Even in this case, the pressing roller 34 of the pressing device 30 can follow the uppermost sheet 2 of the stacked sheets 2 and press the stacked sheets 2.

  After the height of the stacked sheets 2 reaches a predetermined height, the conveying speed of the first conveyor 3 is increased as shown in FIG. Here, the speed of the sheet 2 conveyed to the first conveyor 3 from the upstream side in the conveyance direction is maintained constant. Thus, the blank portion 7 can be formed between the sheets 2 placed on the first conveyor 3. Even in this case, the sheets 2 on the first conveyor 3 are sequentially stacked on the second conveyor 4.

  After the sheet 2 immediately before the blank portion 7 is stacked, the conveying speed of the first conveyor 3 is lowered and returned to the original speed. At substantially the same time, as shown in FIG. 4 (c), the conveyor driving unit 5 is driven, the second conveyor 4 is lowered to the same height as the third conveyor 6, and the fork driving unit 44 is driven. The temporary stacking fork 40 enters the stacking region where the sheets 2 are stacked.

  In this case, first, the fork roller 42 provided at the tip of the fork member 41 abuts against the contact plate 38 of the pressing device 30. Thus, the base 31 of the pressing device 30 can slide upward with respect to the jogger 20 and the pressing device 30 can be raised.

  Thereafter, the temporary stacking fork 40 further advances and stops at a predetermined position. In this case, the lower end of the contact plate 38 of the pressing device 30 abuts on the fork member 41 of the temporary stacking fork 40, and the arm 32 is locked by the stopper 37. For this reason, the pressure roller 34 is positioned above the fork member 41, and a space 36 for inserting the sheet 2 can be formed between the pressure roller 34 and the fork member 41.

  Next, as shown in FIG. 4D, the sheet 2 immediately after the blank portion 7 formed on the first conveyor 3 is placed on the fork member 41 of the temporary stacking fork 40. In this case, the sheet 2 is inserted into the space 36 between the pressing roller 34 and the fork member 41 of the pressing device 30 and advances in the space 36, and the front end of the sheet 2 comes into contact with the jogger 20 to stop the clogging. It is done. Further, the sheet 2 is continuously conveyed from the first conveyor 3 and the sheet 2 is stacked on the fork member 41. In this way, the temporary stacking fork 40 receives the sheets 2 and puts them in a stacked state. When the sheets 2 are stacked to some extent, the stacked sheets 2 are pressed by the pressing roller 34. Thereafter, the sheet 2 conveyed from the first conveyor 3 is inserted between the uppermost sheet 2 of the stacked sheets 2 and the pressing roller 34 of the pressing device 30 and is pressed by the subsequent sheet 2 to be jogger. 20 abuts and is laminated.

  On the other hand, the lowered second conveyor 4 is transported and driven, and the sheet stack is transported to the third conveyor 6. Then, while the 2nd conveyor 4 stops, the laminated body of a sheet | seat is conveyed from the 3rd conveyor 6 to the following process.

  Next, the conveyor drive part 5 is driven, the 2nd conveyor 4 raises, and adjoins the fork member 41 of the temporary stacking fork 40.

  Next, the temporary stacking fork 40 moves backward from the stacking region. At this time, the sheet 2 stacked on the fork member 41 of the temporary stacking fork 40 is damped by the jogger 20 and is placed on the second conveyor 4 after the fork member 41 is retracted from the stacking region. In this case, the stacked sheets 2 are lowered, but the base 31 of the pressing device 30 slides downward with respect to the jogger 20, and the pressing device 30 is similarly lowered. Thereby, the pressing roller 34 can be pressed onto the sheet 2 placed on the second conveyor 4.

  Thereafter, as shown in FIG. 4A, the sheets 2 are sequentially laminated. In this way, the sheets 2 conveyed from the first conveyor 3 are sequentially stacked and sequentially conveyed to the next process.

  As described above, according to this embodiment, the pressing roller 34 of the pressing device 30 abuts on the uppermost sheet 2 among the sheets 2 stacked on the second conveyor, and is interposed between the stacked sheets 2. The air that is being pushed can be pushed outward. Moreover, since the sheet 2 conveyed from the first conveyor 3 is pressed while being stacked on the second conveyor 4, it is possible to prevent the conveyance efficiency of the sheet 2 from being lowered. Thus, air can be quickly pushed out from between the stacked sheets 2, and the stacked sheets 2 can be efficiently conveyed without breaking.

  Further, according to the present embodiment, when the temporary stacking fork 40 enters the stacking region, the fork roller 42 provided at the front end portion of the fork member 41 contacts the contact plate 38 of the pressing device 30. As a result, the base 31 of the pressing device 30 slides upward with respect to the jogger 20, and the pressing device 30 can be smoothly raised, and the temporary stacking fork 40 can be smoothly advanced into the stacking region. In this case, a space 36 for inserting the sheet 2 can be formed between the pressing roller 34 and the fork member 41. As a result, the first sheet 2 can be placed on the fork member 41 while making the jogger 20 come into contact with the jogger 20 smoothly, and deformation of the sheet 2 can be prevented.

  Furthermore, according to the present embodiment, the structure is simplified by attaching the pressing device 30 that presses the sheets 2 stacked on the second conveyor 4 to the jogger 20. For this reason, it can be easily applied to the existing printing press 1.

Second Embodiment Next, a sheet stacking mechanism in a second embodiment of the present invention will be described with reference to FIG.

  The sheet stacking mechanism according to the second embodiment shown in FIG. 5 is mainly different in that the temporary stacking fork pushes up the pressing roller of the pressing device when entering the stacking region. This is substantially the same as the first embodiment shown in FIG. In FIG. 5, the same parts as those of the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 5, the pressing device 50 according to the present embodiment includes an arm 32 that is swingably provided on the jogger 20 and a pressing roller 34 that is rotatably provided at the distal end portion of the arm 32. Have. Among these, the press roller 34 is arrange | positioned at the both sides of the jogger 20 so as to correspond to the position of the fork member 41 of the temporary stacking fork 40, as shown in FIG. In this way, the fork member 41 of the temporary stacking fork 40 pushes up the pressing roller 34 of the pressing device 50 and moves the pressing roller 34 upward with respect to the jogger 20 when entering the stacking region where the sheets 2 are stacked. It is designed to rotate.

  In the present embodiment, first, as shown in FIG. 5A, the sheet 2 conveyed from the first conveyor 3 is stacked on the stopped second conveyor 4.

  After the height of the stacked sheets 2 reaches a predetermined height, the conveyance speed of the first conveyor 3 is increased as shown in FIG.

  After the sheet 2 immediately before the blank portion 7 formed on the first conveyor 3 is stacked, as shown in FIG. 5C, the conveying speed of the first conveyor 3 is returned to the original, almost simultaneously with this. The second conveyor 4 is lowered to the same height as the third conveyor 6, and the temporary stacking fork 40 enters the stacking region.

  Here, when the temporary stacking fork 40 enters the stacking region, first, the fork roller 42 provided at the tip of the fork member 41 pushes up the pressing roller 34 of the pressing device 50. Accordingly, the pressing roller 34 can be rotated upward with respect to the jogger 20. Thereafter, the temporary stacking fork 40 further advances and stops at a predetermined position. In this case, the pressing roller 34 abuts on the fork member 41.

  Next, as shown in FIG. 5D, the sheet 2 immediately after the blank portion 7 formed on the first conveyor 3 is placed on the fork member 41 of the temporary stacking fork 40. In this case, the sheet 2 is inserted between the pressing roller 34 of the pressing device 50 and the fork member 41, and is abutted against the jogger 20 while being pressed by the subsequent sheet 2. Further, the sheet 2 is continuously conveyed from the first conveyor 3 and the sheet 2 is stacked on the fork member 41. In this way, the temporary stacking fork 40 receives the sheets 2 and puts them in a stacked state. During this time, the pressing roller 34 follows the height of the stacked sheets 2 and presses the stacked sheets 2.

  On the other hand, the lowered second conveyor 4 is transported and driven, and the sheet stack is transported to the third conveyor 6. Then, while the 2nd conveyor 4 stops, the laminated body of a sheet | seat is conveyed from the 3rd conveyor 6 to the following process.

  Next, the 2nd conveyor 4 raises and adjoins the temporary stacking fork 40, and the temporary stacking fork 40 retracts | saves from a lamination | stacking area | region after that. As a result, the sheet 2 stacked on the temporary stacking fork 40 is placed on the second conveyor 4.

  Thereafter, as shown in FIG. 5A, the sheets 2 are sequentially laminated. In this way, the sheets 2 conveyed from the first conveyor 3 are sequentially stacked and sequentially conveyed to the next process.

  As described above, according to the present embodiment, the pressing roller 34 of the pressing device 50 contacts the uppermost sheet 2 among the sheets 2 stacked on the second conveyor, and is interposed between the stacked sheets 2. The air that is being pushed can be pushed outward. Moreover, since the sheet 2 conveyed from the first conveyor 3 is pressed while being stacked on the second conveyor 4, it is possible to prevent the conveyance efficiency of the sheet 2 from being lowered. Thus, air can be quickly pushed out from between the stacked sheets 2, and the stacked sheets 2 can be efficiently conveyed without breaking.

  Further, according to the present embodiment, when the temporary stacking fork 40 enters the stacking region, the fork roller 42 provided at the tip of the fork member 41 pushes up the pressing roller 34 of the pressing device 50. As a result, the pressing roller 34 rotates upward with respect to the jogger 20, and the temporary stacking fork 40 can smoothly enter the stacking region. In this case, since the pressing roller 34 is in contact with the fork member 41, the pressing roller is applied to the uppermost sheet 2 among the stacked sheets 2 from the initial stage in which the sheets 2 are stacked on the temporary stacking fork 40. 34 can be brought into contact with each other, and air can be quickly pushed out from between the stacked sheets 2.

  Furthermore, according to the present embodiment, the structure is simplified by attaching the pressing device 30 that presses the sheets 2 stacked on the second conveyor 4 to the jogger 20. For this reason, it can be easily applied to the existing printing press 1.

Third Embodiment Next, a sheet stacking mechanism according to a third embodiment of the present invention will be described with reference to FIG.

  In the sheet stacking mechanism according to the third embodiment shown in FIG. 6, when the temporary stacking fork enters the stacking region, there is a space for inserting a sheet between the temporary stacking fork and the pressing roller of the pressing device. The difference is mainly formed, and other configurations are substantially the same as those of the first embodiment shown in FIGS. In FIG. 6, the same parts as those of the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 6, the pressing device 60 according to the present embodiment includes an arm 32 that is swingably provided on the jogger 20 and a pressing roller 34 that is rotatably provided at the tip of the arm 32. doing. Further, the jogger 20 is configured to insert the sheet 2 between the fork member 41 and the pressing roller 34 of the temporary stacking fork 40 when the temporary stacking fork 40 enters the stacking region where the sheets 2 are stacked. A stopper 37 that locks the downward rotation of the arm 32 is provided so as to form the space 36. That is, when the arm 32 is locked to the stopper 37, a space 36 for inserting the sheet 2 is formed between the fork member 41 of the temporary stacking fork 40 that has entered the stacking region and the pressing roller 34. It is like that.

  In the present embodiment, first, as shown in FIG. 6A, the sheet 2 conveyed from the first conveyor 3 is stacked on the stopped second conveyor 4.

  After the height of the stacked sheets 2 reaches a predetermined height, the conveyance speed of the first conveyor 3 is increased as shown in FIG.

  After the sheet 2 immediately before the blank portion 7 formed on the first conveyor 3 is stacked, as shown in FIG. 6C, the conveying speed of the first conveyor 3 is returned to the original, almost simultaneously with this. The second conveyor 4 is lowered to the same height as the third conveyor 6, and the temporary stacking fork 40 enters the stacking region.

  In this case, since the arm 32 of the pressing device 60 is locked by the stopper 37, the pressing roller 34 is positioned above the fork member 41, and the sheet 2 is inserted between the pressing roller 34 and the fork member 41. A space 36 can be formed.

  Next, as illustrated in FIG. 6D, the sheet 2 immediately after the blank portion 7 formed on the first conveyor 3 is placed on the fork member 41 of the temporary stacking fork 40. In this case, the sheet 2 is inserted into the space 36 between the pressing roller 34 and the fork member 41 of the pressing device 60, travels in the space 36, contacts the jogger 20, and is blocked. Further, the sheet 2 is continuously conveyed from the first conveyor 3 and the sheet 2 is stacked on the fork member 41. In this way, the temporary stacking fork 40 receives the sheets 2 and puts them in a stacked state. When the sheets 2 are stacked to some extent, the stacked sheets 2 are pressed by the pressing roller 34. Thereafter, the sheet 2 conveyed from the first conveyor 3 is inserted between the uppermost sheet 2 of the stacked sheets 2 and the pressing roller 34 of the pressing device 60, and is pressed by the subsequent sheet 2, The front end of the sheet 2 contacts the jogger 20 and is stacked.

  On the other hand, the lowered second conveyor 4 is transported and driven, and the sheet stack is transported to the third conveyor 6. Then, while the 2nd conveyor 4 stops, the laminated body of a sheet | seat is conveyed from the 3rd conveyor 6 to the following process.

  Next, the 2nd conveyor 4 raises and adjoins the temporary stacking fork 40, and the temporary stacking fork 40 moves backward from a lamination | stacking area | region after that. As a result, the sheet 2 stacked on the temporary stacking fork 40 is placed on the second conveyor 4.

  Thereafter, as shown in FIG. 5A, the sheets 2 are sequentially laminated. In this way, the sheets 2 conveyed from the first conveyor 3 are sequentially stacked and sequentially conveyed to the next process.

  As described above, according to the present embodiment, the pressing roller 34 of the pressing device 60 contacts the uppermost sheet 2 among the sheets 2 stacked on the second conveyor 4, and the stacked sheets 2 are interposed between the stacked sheets 2. The intervening air can be pushed outward. Moreover, since the sheet 2 conveyed from the first conveyor 3 is pressed while being stacked on the second conveyor 4, it is possible to prevent the conveyance efficiency of the sheet 2 from being lowered. Thus, air can be quickly pushed out from between the stacked sheets 2, and the stacked sheets 2 can be efficiently conveyed without breaking.

  Further, according to the present embodiment, when the temporary stacking fork 40 enters the stacking region, the sheet 2 is inserted between the fork member 41 of the temporary stacking fork 40 and the pressing roller 34 of the pressing device 60. A space 36 is formed. As a result, the first sheet 2 can be placed on the fork member 41 while making the jogger 20 come into contact with the jogger 20 smoothly, and deformation of the sheet 2 can be prevented.

  Furthermore, according to the present embodiment, the structure is further simplified by attaching the pressing device 30 for pressing the sheets 2 stacked on the second conveyor 4 to the jogger 20. For this reason, it can be easily applied to the existing printing press 1.

  As mentioned above, although embodiment by this invention has been described, naturally, within the scope of the gist of this invention, these embodiment can also be combined suitably partially. Further, in the present embodiment, various modifications are possible within the scope of the gist of the present invention.

  For example, in the above-described embodiment, the example in which the sheets 2 are conveyed in three rows and the jogger 20 is installed corresponding to this is described. However, the present invention is not limited to this, and the number of rows of sheets 2 to be conveyed can be arbitrary, and joggers 20 are installed according to the rows of sheets 2, and the pressing device 30 is attached to each jogger 20. You may make it provide.

DESCRIPTION OF SYMBOLS 1 Printing machine 2 Sheet 3 1st conveyor 4 2nd conveyor 5 Conveyor drive part 6 3rd conveyor 7 Blank part 10 Sheet lamination mechanism 20 Jogger 21 Jogger frame 22 Slot 30 Pressing device 31 Base 32 Arm 33 Arm shaft 34 Pressing roller 35 Roller shaft 36 Space 37 Stopper 38 Stopper plate 39 Support 40 Temporary stacking fork 41 Fork member 42 Fork roller 43 Fork frame 44 Fork drive unit 50, 60 Sheet stacking mechanism

Claims (4)

First conveying means for conveying a rectangular sheet;
A sheet conveyed from the first conveying means is laminated, a second conveying means for conveying the laminated sheet;
A lamination guide member that extends in the vertical direction and abuts the front end of the sheet conveyed from the first conveyance unit, and guides the sheet in a stacked manner on the second conveyance unit;
A pressing device that is provided in the stacking guide member and presses the stacked sheets downward;
While the second conveying means conveys the laminated sheets, a sheet provisional stacking section that enters the lamination area where the sheets are laminated, receives the sheets conveyed from the first conveying means, and puts them in a laminated state; With
The pressing device has an arm provided so as to be swingable with respect to the laminated guide member, and a pressing roller provided rotatably at a tip portion of the arm,
The pressing roller is capable of inserting the sheet conveyed from the first conveying means between the uppermost sheet of the stacked sheets and the pressing roller, and is laminated in contact with the uppermost sheet. Press the sheet ,
The pressing device is movable up and down with respect to the laminated guide member,
The temporary sheet stacking portion raises the pressing device when entering the stacking region . The pressing device further includes a contact plate with which the sheet temporary stacking part can freely contact,
The sheet stacking mechanism according to claim 1 , wherein when the sheet temporary stacking portion enters the stacking region, the sheet stacking mechanism raises the pressing device by abutting against a contact plate of the pressing device. The pressing device engages in the downward rotation of the arm so as to form a space for inserting a sheet between the sheet stacking portion and the pressing roller when the sheet stacking portion enters the stacking region. sheet stacking mechanism according to claim 1 or 2, characterized in that it further comprises a stopper for stopping. First conveying means for conveying a rectangular sheet;
A sheet conveyed from the first conveying means is laminated, a second conveying means for conveying the laminated sheet;
A lamination guide member that extends in the vertical direction and abuts the front end of the sheet conveyed from the first conveyance unit, and guides the sheet in a stacked manner on the second conveyance unit;
A pressing device that is provided in the stacking guide member and presses the stacked sheets downward;
While the second conveying means conveys the laminated sheets, a sheet provisional stacking section that enters the lamination area where the sheets are laminated, receives the sheets conveyed from the first conveying means, and puts them in a laminated state ; , Bei to give a,
The pressing device has an arm provided so as to be swingable with respect to the laminated guide member, and a pressing roller provided rotatably at a tip portion of the arm,
The pressing roller is capable of inserting the sheet conveyed from the first conveying means between the uppermost sheet of the stacked sheets and the pressing roller, and is laminated in contact with the uppermost sheet. Press the sheet,
Temporary sheet product unit, upon entering the stacking area, pressing device characteristics and to Resid over preparative stacking mechanism that pushes up the pressing roller.

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