JP5566601B2 - Corrugated sheet box making machine - Google Patents

Description

  The present invention relates to a corrugated sheet box making machine having upper and lower processing tools sandwiching a conveyance path to perform crease (crease) or grooving (slot) processing on a corrugated cardboard sheet. The present invention relates to a corrugated cardboard box making machine provided with a moving mechanism capable of relatively moving upper and lower processing tools in order to convey a corrugated cardboard sheet without being subjected to.

  In general, a corrugated sheet box making machine is provided with a large number of creasing units (creaser units) in the direction crossing the conveyance path (sheet width direction) in order to perform crease and grooving processing on the corrugated cardboard sheet, and downstream of it. A large number of grooving units (slotter units) are provided on the side. An example of this corrugated cardboard box making machine is disclosed in Patent Document 1. In the apparatus of Patent Document 1, each crease unit has a female ruler roll and a male ruler roll as upper and lower processing tools, and each grooving unit has an upper rotary blade and a lower rotary receiving blade. . The upper processing tool and the lower processing tool of each unit such as a crease unit are supported by the upper and lower movable frames so as to be movable in the sheet width direction. Each movable frame includes a nut member, and a screw shaft into which the nut member is screwed is supported by the apparatus frame. Each screw shaft is rotationally driven to move each movable frame in the seat width direction, and the upper movable frame and the lower movable frame that support the upper and lower processing tools that form a pair are the upper screw shafts that are driven synchronously. And is configured to move the same distance along the lower screw axis.

  By the way, in order to manufacture a corrugated cardboard sheet having a large size in the sheet width direction, two normal-sized corrugated cardboard sheets are joined together (two-face joining). For a normal-size corrugated cardboard sheet that is spliced on two sides, it is necessary to reduce the number of creases and grooving and increase the spacing between the crease and grooving positions in the sheet width direction. Further, when the cardboard sheet is cut into a special shape by the die cutter unit, it is necessary that the cardboard sheet passes through each unit without any crease and grooving. In the case of two-face joining or cutting of a special shape, at least some of the many units are retracted from a predetermined processing area in the sheet width direction so as not to perform the processing operation.

  However, in the apparatus of Patent Document 1, since the upper screw shaft and the lower screw shaft are driven synchronously, in order for the unit to retreat from a predetermined processing region, the upper and lower portions that support the processing tool are arranged. There is a problem that both the movable frames need to move a relatively long distance, and the retreat time becomes long.

The applicant moves the paired upper processing tool and lower processing tool relative to each other in the sheet width direction when not performing crease and grooving to cut special shapes. The configuration was proposed by Patent Document 2. In the configuration of Patent Document 2, the upper and lower slotter holders that respectively support the upper blade and the lower blade are configured to slide on the upper slotter shaft and the lower slotter shaft. A shifter is configured to fit into a guide groove formed in each slotter holder and slide each slotter holder by a drive mechanism such as a single motor of electric control. The upper and lower slotter holders are quickly set to a positional relationship that does not perform processing such as ruled by moving relatively without retreating from a predetermined processing area as in the apparatus of Patent Document 1.
JP 2006-289914 A JP-A-1-259934

  Patent Document 2 discloses a basic configuration for relatively moving the upper and lower slotter holders, but does not specifically disclose a configuration for connecting the shifter and a single motor of the drive mechanism. When considering applying the basic configuration of Patent Literature 2 to the device of Patent Literature 1, the upper screw shaft and the lower screw shaft in each unit described in Patent Literature 1 are combined into a single motor fixed to the device frame. A configuration in which they are individually connected is conceivable. In the configuration in which each screw shaft is individually connected to a single motor, the configuration of the connection mechanism of the entire apparatus is extremely complicated and large. That is, there are two upper and lower screw shafts in each unit, and in the entire apparatus, a large number of screw shafts that are a multiple of the number of units must be arranged in the device frame. In addition, since each of a large number of screw shafts is individually connected to a single motor, the number of connecting mechanisms is increased by the number of screw shafts, and there is a problem that the configuration of the entire apparatus becomes complicated.

  Accordingly, the present invention provides a drive motor for each movable frame that supports each of the upper and lower processing tools in each of a large number of processing units, and the upper processing tool and the lower processing tool are relatively moved by driving the driving motor. An object of the present invention is to provide a corrugated sheet box making machine that can be easily and miniaturized by providing a moving mechanism that moves it automatically.

[Invention and its specific embodiments]
To achieve the above object, according to the first aspect of the present invention, a plurality of processing units are arranged in the sheet width direction across the conveyance path in order to process the cardboard sheet conveyed along the conveyance path. The upper processing frame and the lower processing tool that are arranged above and below the conveyance path, and the upper movable frame that is arranged so as to be movable in the sheet width direction and supports the upper processing tool and the lower processing tool, respectively. A plurality of processing units having a movable frame and a lower movable frame; and a plurality of upper movable frames respectively included in the plurality of processing units, extending in the sheet width direction to guide the plurality of upper movable frames in the sheet width direction, and fixed to an apparatus frame In order to guide one upper guide member and a plurality of lower movable frames respectively included in the plurality of processing units in the seat width direction One lower guide member that extends in the sheet width direction and is fixed to the apparatus frame, and a plurality of upper rotating bodies that are rotatably provided on the plurality of upper movable frames and respectively engage with the upper guide members; Each of the plurality of lower movable frames is rotatably provided and is engaged with each of the lower guide members, and each of the plurality of lower movable bodies is fixed to each of the plurality of upper movable frames. A number of upper drive motors to be driven, a number of lower drive motors that are fixed to the number of lower movable frames and that rotate and drive the number of lower rotating bodies, and the upper processing tool and the lower processing tool face each other. The position state is switched between the processable position state to be performed and the unprocessable position state to be separated in the sheet width direction. A motor control unit for controlling the driving of the plurality of upper drive motors and the plurality of lower drive motors, and an upper movable frame and a lower movable frame of each processing unit for supporting the upper movable frame and the lower movable frame movably in the sheet width direction, respectively. A pair of upper support bars and a pair of lower support bars that are installed on the apparatus frame at a predetermined interval in a direction parallel to the transport path, and each of the upper drive motors includes the pair of upper support bars. The lower drive motor is supported by the pair of lower support bars, and is fixed to be positioned in an intermediate region between two support portions on each upper movable frame supported by the upper movable frame. It is configured to be fixed so as to be located in an extension region extending in a direction parallel to the conveyance path from an intermediate region existing between two support portions on the frame. is there.

  The aspect of the present invention can be applied to a box making machine having any configuration as long as it is a cardboard sheet box making machine including a large number of processing units movable in the sheet width direction. For example, the processing unit may be a crease unit that gives a ruled line parallel to the conveyance direction of the cardboard sheet, or a grooving unit that forms a slot parallel to the conveyance direction. Further, the processing unit may be configured to support the crease unit and the grooving unit on one movable frame.

  In the aspect of the present invention, the upper guide member or the lower guide member may be configured to guide at least two movable frames among a large number of movable frames. That is, when there are five movable frames, one guide member may guide the two movable frames, and another one guide member may guide the remaining three movable frames.

  In the aspect of the present invention, the guide member and the rotating body may be configured so that the rotating body engages with the guide member and moves along the guide member as the rotating body rotates. For example, the guide member and the rotating body have a configuration in which a screw shaft and a nut member are screwed together, a configuration in which a rack and a pinion are engaged, and a configuration in which the guide member and the rotating body are frictionally engaged if possible. Also good. The rotating body may be directly attached to the movable frame or may be attached to the movable frame via a member fixed to the movable frame.

  In the aspect of the present invention, when the motor control unit switches the positional relationship between the upper machining tool and the lower machining tool to the non-machining position state, the upper machining tool and the lower machining tool included in at least one machining unit among the many machining units are machined. What is necessary is just to switch to an impossible position state. Further, since the unworkable position state may be a position state in which the upper work tool and the lower work tool are separated from each other in the sheet width direction, for example, the lower work tool is a position facing the sheet surface of the corrugated cardboard sheet being conveyed. However, the upper processing tool may be in a position state moved in the sheet width direction to a position not facing the sheet surface.

  In the aspect of the present invention, the motor control unit controls the driving and stopping of a large number of drive motors in order to switch the position states of the upper processing tool and the lower processing portion. Any structure that drives at least one of the drive motors may be used.

  In the aspect of the present invention, the motor control unit may drive at least one of the upper drive motor and the lower drive motor in order to switch the position state of the upper work tool and the lower work tool.

The invention according to claim 2 is a specific aspect relating to the arrangement of the drive motors. In this specific aspect, the plurality of upper drive motors or the plurality of lower drive motors respectively fixed to the plurality of upper movable frames or the plurality of lower movable frames are adjacent to each other in the seat width direction. in configuration which is arranged to be positioned opposite one another frame or two of the two upper drive motor or two lower drive motor which is fixed to the lower movable frame across the upper guide member or the lower portion guide member is there.

  The invention according to claim 3 is a specific aspect relating to the positional relationship between the upper guide member and the upper movable frame. In this specific aspect, the upper guide member is fixed so as to be positioned on a line connecting two support portions on the upper movable frame supported by the pair of upper support bars.

  The invention according to claim 4 is a specific aspect relating to the positional relationship between the pair of support bars and the guide member. In this specific aspect, the upper guide member is fixed to a central position of two support portions on each upper movable frame supported by the pair of upper support bars, and the lower guide member is fixed to the pair of lower support members. It is the structure fixed to the center position of the two support parts on each lower movable frame supported by the support bar.

  The invention according to claim 5 is a specific aspect relating to the unworkable position state. In this specific aspect, when the position state of the upper processing tool and the lower processing tool included in the specific processing unit among the plurality of processing units is switched to the unworkable position state, the motor control unit One processing tool of the lower processing tool and the other processing tool adjacent to the specific processing unit have an arrangement position of the other processing tool rather than an arrangement position of the upper processing tool and the lower processing tool in the sheet width direction. The drive of the multiple upper drive motors and the multiple lower drive motors is controlled so as to be positioned away from the other processing tool at a predetermined position close to.

  The invention according to claim 6 is a specific aspect relating to the power transmission mechanism. In this specific embodiment, in order to transmit the driving force of the multiple upper drive motors or the multiple lower drive motors to the multiple upper rotating bodies or the multiple lower rotating bodies, respectively, the multiple upper movable frames or A plurality of power transmission mechanisms provided respectively on the plurality of lower movable frames, wherein the plurality of power transmission mechanisms are surfaces on which two upper movable frames adjacent to each other in the seat width direction or two lower movable frames face each other; It is the structure arrange | positioned. In this specific aspect, the power transmission mechanism may be directly attached to the movable frame or may be attached to the movable frame via a member fixed to the movable frame.

  The invention according to claim 7 is a specific aspect relating to position control of the processing tool when processing is not performed on the corrugated cardboard sheet. In this specific aspect, when the processing is not performed on the sheet surface extending in the sheet width direction of the corrugated cardboard sheet, the motor control unit includes at least one set of the upper processing tool and the lower processing tool in the unworkable position state. The drive of the multiple upper drive motors and the multiple lower drive motors is controlled so as to face the seat surface.

  The invention according to claim 8 is a specific aspect relating to the positional relationship between the support portion of the processing tool and the drive motor. In this specific aspect, each of the upper drive motors is fixed to the upper movable frame above a support portion on which the upper processing tool is supported on the upper movable frame, and each of the lower drive motors is moved to the lower movable frame. It is the structure fixed to the said lower movable frame below the support part by which the said lower processing tool was supported on the flame | frame.

  The invention which concerns on Claim 9 is a specific aspect regarding the crease unit provided with two receiving surfaces of hardness different from a protrusion. In this specific aspect, each processing unit is composed of a crease unit that performs crease processing on a corrugated cardboard sheet, and the crease unit includes a first processing roll on which ridges for crease are formed; And a second processing roll having at least two receiving surfaces for sandwiching the corrugated cardboard sheet between the protrusions and in the vertical direction across the conveyance path, and at least two receiving surfaces of the second processing roll The upper drive motor is arranged in the sheet width direction and is made of a material having different hardness, and the motor control unit is configured so that the protrusion selectively faces one of the at least two receiving surfaces. And at least one drive of the lower drive motor.

  The invention according to claim 10 is a specific aspect relating to a positional relationship between the upper guide member and the lower guide member, and the upper guide member and the lower guide member are positioned on a common line perpendicular to the transport path. It is the structure fixed to an apparatus frame.

[Effect of the invention aspect]
In the aspect of the present invention, a large number of rotating bodies provided on a large number of movable frames engage with one guide member, and a drive motor fixed to each movable frame rotates each rotating body. By rotating each rotating body, the upper processing tool and the lower processing tool are relatively moved, and the position state of both processing tools is switched to a non-processable position state in which processing is not performed on the cardboard sheet. As a result, the drive motor is fixed to the movable frame and a large number of rotating bodies are engaged with one guide member, so there is no need to provide a large number of guide members according to the number of movable frames. A moving mechanism for relatively moving the upper processing tool and the lower processing tool has a simple and small configuration.

  In the aspect of the present invention, both the moving mechanism of the upper working tool and the moving mechanism of the lower working tool are engaged with a large number of rotating bodies in which one guide member is rotated by a large number of drive motors on a large number of movable frames. It is a configuration. As a result, the two guide members of the upper guide member and the lower guide member are simply fixed to the upper and lower portions of the apparatus frame, and the entire apparatus is extremely simple and compact.

  Further, in the aspect of the present invention, each upper drive motor is fixed so as to be positioned in an intermediate region on each upper movable frame, and each lower drive motor is fixed so as to be positioned in an extending region on each lower movable frame. . As a result, since each upper drive motor is fixed to the middle region, the load applied to the pair of upper support bars is substantially equal, and each upper movable frame is supported in a stable state by the pair of upper support bars without tilting. The On the other hand, in order to reduce the size of the entire device, the size of the space below each lower movable frame is limited, so each lower drive motor is fixed to the extension region, thereby reducing the size of the entire device. Thus, the degree of freedom of the position of each lower drive motor can be increased.

[Effects of specific embodiments]
In a specific aspect of claim 2, since the two drive motors respectively fixed to the two adjacent movable frames are located on opposite sides of the guide member, they are adjacent to each other when the corrugated cardboard sheet is not processed. Even when the two movable frames are brought close to each other, the drive motors do not collide with each other.

  In a specific aspect of the third aspect, the upper guide member is fixed so as to be positioned on a line connecting two support portions on the upper movable frame supported by the pair of upper support bars. As a result, when the upper movable frame moves along the upper guide member by the drive of the drive motor, the rotational moments caused by the two reaction forces acting on the two support portions work in directions that cancel each other, The upper movable frame can move smoothly without being inclined with respect to the upper guide member in the vertical direction.

  5. The specific aspect of claim 4, wherein the upper guide member is fixed at the center position of the two support portions on each upper movable frame supported by the pair of upper support bars, and the lower guide member is a pair of lower support members. It is fixed to the center position of two supporting portions on each lower movable frame supported by the bar. As a result, when each movable frame moves along each guide member by the drive of the drive motor, the two reaction forces acting on the two support portions have almost the same magnitude. It can move smoothly without being inclined with respect to each guide member in the transport direction.

  In a specific aspect of claim 5, one processing tool is located on the other processing tool rather than the arrangement position in the sheet width direction of the upper processing tool and the lower processing tool that another processing unit adjacent to the specific processing unit has. It is positioned away from the other processing tool at a predetermined position close to the arrangement position. As a result, if one processing tool moves a short distance to a predetermined position close to the position of the other processing tool, it becomes possible to switch to the non-machining position state, and the switching of the position state of both processing tools can be performed quickly. It can be carried out.

  In the specific aspect of claim 6, on the premise that the two drive motors are located on opposite sides of the guide member, the plurality of power transmission mechanisms are configured such that two adjacent movable frames are opposed to each other in the seat width direction. Placed on the surface to be. As a result, the assembly work of the drive motor and the power transmission mechanism to two adjacent movable frames is facilitated. Further, by attaching the movable frame formed in the same shape by changing the direction by 180 degrees, it can be used as two adjacent movable frames, and the parts can be shared.

  In the specific aspect of claim 7, since at least one set of the upper processing tool and the lower processing tool is located opposite to the sheet surface, the corrugated cardboard sheet may be It is supported by the tool from below, and the cardboard sheet can be prevented from hanging down due to its own weight, and when the cardboard sheet is deformed to warp upward, the cardboard sheet is pressed from above by the upper processing tool. It is straightened. As a result, it is possible to prevent the corrugated cardboard sheet from colliding with the entrance portion of the processing apparatus disposed downstream in the conveying direction and clogging.

  In a specific aspect of the present invention, each upper drive motor is fixed to the upper movable frame above the support portion of the upper processing tool, and each lower drive motor is fixed to the lower movable frame below the support portion of the lower processing tool. The The vicinity of the support part of the upper processing tool and the lower processing tool is a moving space for various members including the processing tool, so that the fixed position of the drive motor is restricted and the influence of vibration caused by the processing operation of the processing tool is limited. It is also an area that is susceptible to exposure. In this specific aspect, since the drive motor is fixed to a region away from the support portion of the processing tool, the degree of freedom of the arrangement position of the drive motor is increased and the electric power of the drive motor due to vibration from the processing tool is increased. It is possible to reduce the occurrence of poor connection at the target connection as much as possible.

  10. The upper drive according to claim 9, wherein at least two receiving surfaces of the second work roll are formed of materials of different hardness, and the protrusions are selectively opposed to either of the at least two receiving surfaces. At least one of the motor and the lower drive motor is driven. As a result, by selecting the receiving surface according to the paper quality of the corrugated cardboard sheet, it is possible to accurately perform the crease processing without damaging the corrugated cardboard sheet.

  In a specific aspect of the present invention, the upper guide member and the lower guide member are fixed to the apparatus frame so as to be positioned on a common line perpendicular to the transport path. As a result, the upper movable frame and the lower movable frame that are paired receive the power from the drive motor on a common vertical line, so that the movable frame and the lower movable frame are prevented from crossing each other. The processing tools can be opposed in a parallel posture.

[First embodiment]
A first embodiment in which the present invention is applied to a double slotter type corrugated board box making machine that performs processing such as crease and grooving on a corrugated board sheet will be described below with reference to the accompanying drawings. In the drawings, a vertical direction, a horizontal direction, and a front-rear direction are determined according to directions indicated by arrows.

<Overall configuration>
FIG. 1 is a diagram showing an overall configuration of a corrugated cardboard box making machine 1 according to the present embodiment. The corrugated board box making machine 1 feeds the cardboard sheets SS one by one toward the transport path PL, and transports the cardboard sheet SS supplied from the feed apparatus 2 along the transport path PL. The conveyance device 3 includes a plurality of processing devices arranged along the conveyance path PL in order to sequentially process the conveyed cardboard sheet SS. In the present embodiment, as a plurality of processing devices, a printing device 4 that performs printing on the cardboard sheet SS, a creaser device 5 that applies ruled lines in the conveying direction to the cardboard sheet SS, and a slotter device 6 that performs grooving on the cardboard sheet SS, A die cutter device 7 for punching the corrugated cardboard sheet SS is provided.

<Configuration of supply device>
The supply device 2 includes a hopper 20, a belt kicker mechanism 21, and a pair of feed rolls 22A and 22B. Both feed rolls 22 </ b> A and 22 </ b> B are connected to the main drive motor 8 via a known power transmission mechanism, and rotate with the rotation of the main drive motor 8. The supply device 2 includes a paper feed table 23 that extends in the horizontal direction at the same height as the transport path PL. Further, the supply device 2 includes a suction chamber provided below the belt kicker mechanism 21 and a suction blower connected to the suction chamber.

<Conveyor configuration>
As shown in FIG. 1, the transport device 3 includes a printing transport unit 30, a cleaner transport unit 31, and a slotter transport unit 32. These transport units 30 to 32 are arranged along the transport path PL in order to transport the cardboard sheet SS in the transport direction from right to left. The basic configuration of the conveyance units 30 to 32 is the same. Each transport unit includes a large number of transport rollers arranged along the transport path PL, a suction chamber provided below these transport rollers, and a suction blower connected to the suction chamber. A large number of transport rollers are connected to the main drive motor 8 via a known power transmission mechanism, and rotate as the main drive motor 8 rotates.

<Configuration of printing device>
In the present embodiment, the printing apparatus 4 is composed of a known roll-cut flexographic printing machine. The printing device 4 mainly includes a printing cylinder 40, a printing plate member 41 for printing on the corrugated cardboard sheet SS, an ink application device 42, and a press roll 43. The printing cylinder 40 is rotatably supported by the frame of the printing apparatus 4 and is connected to the main drive motor 8 through a known power transmission mechanism, and rotates in the direction of the arrow shown in FIG. 1 by the rotation of the main drive motor 8. To do. The press roll 43 is disposed at a position facing the printing cylinder 40 across the transport path PL, and is connected to the main drive motor 8 via a known power transmission mechanism. Rotate in the direction of the arrow shown. The press roll 43 performs desired printing by holding the conveyed cardboard sheet SS between the printing plate of the printing member 41 wound around the printing cylinder 40.

<Schematic configuration of the creaser device>
As shown in FIG. 1, the creaser device 5 has an upper ruled line roll 50 and a lower ruled line roll 51 across the transport path PL. Both rolls 50 and 51 are connected to the main drive motor 8 through a known power transmission mechanism, and rotate in the direction of the arrow shown in FIG. 1 by the rotation of the main drive motor 8. Both rolls 50 and 51 apply a ruled line in the conveying direction to a desired position of the conveyed cardboard sheet SS. The detailed configuration of the creaser device 5 will be described later.

<Schematic configuration of slotter device>
The slotter device 6 has a double slotter configuration having a first slotter subunit 61 arranged on the upstream side and a second slotter subunit 62 arranged on the downstream side along the transport path PL. . The first slotter subunit 61 is provided with a slotter set for grooving composed of an upper first slotter 610 and a lower first slotter 611 disposed with the transport path PL interposed therebetween. Both slotters 610 and 611 are connected to the main drive motor 8 via a known power transmission mechanism, and rotate in the direction of the arrow shown in FIG. 1 by the rotation of the main drive motor 8. In addition, the second slotter subunit 62 includes a slotter set for grooving composed of an upper second slotter 620 and a lower second slotter 621 arranged across the transport path PL. Both slotters 620 and 621 are connected to the main drive motor 8 via a known power transmission mechanism, and rotate in the direction of the arrow shown in FIG. 1 by the rotation of the main drive motor 8. The detailed configuration of the slotter device 6 will be described later.

<Configuration of die cutter device>
The die cutter device 7 has a rotary die cutter type configuration, and includes a die cylinder 70 and an anvil cylinder 71 with a conveyance path PL interposed therebetween. A pair of punching dies 73 and 74 for punching the corrugated cardboard sheet SS is attached to a plate-like body such as a plywood veneer, and the plate-like body is wound around the outer peripheral surface of the die cylinder 70 in a positional relationship in which both dies are point-symmetric. Be dressed. Each of the punching dies 73 and 74 punches a desired position of the corrugated cardboard sheet SS that is continuously conveyed. The die cylinder 70 and the anvil cylinder 71 are connected to the main drive motor 8 through a known power transmission mechanism, and rotate in the direction of the arrow shown in FIG. 1 by the rotation of the main drive motor 8.

<Detailed configuration of the creaser device>
The detailed structure of the creaser apparatus 5 is demonstrated below with reference to FIGS. 2 is a partial cross-sectional front view of the creaser device 5 shown in FIG. 1 as viewed from the right side, and FIG. 3 is a partial cross-sectional side view of the inside of the creaser device 5 shown in FIG. 2 as viewed from the front side. In FIG. 2, the creaser device 5 includes a front device frame 500 and a rear device frame 501. A pair of upper support bars 510 and 511 are installed between the upper ends of both apparatus frames 500 and 501, and a pair of lower support bars 520 and 521 are provided between the lower ends of both apparatus frames 500 and 501. It is built in. As shown in FIG. 3, the upper support bars 510 and 511 are arranged at a predetermined interval in a direction parallel to the transport path PL, and the lower support bars 520 and 521 are similarly parallel to the transport path PL. They are arranged at predetermined intervals in the direction.

One upper screw shaft 512 is fixed to both device frames 500 and 501 at a position close to the upper support bars 510 and 511, and one lower screw shaft 522 is close to the lower support bars 520 and 521. In this position, the device frames 500 and 501 are fixed. Further, one upper crease drive shaft 513 and one lower crease drive shaft 523 are arranged with the conveyance path PL interposed therebetween, and are rotatably attached to both device frames 500 and 501. Both the creaser drive shafts 513 and 523 are composed of spline shafts, and are connected to the main drive motor 8 via a known power transmission mechanism .

As shown in FIG. 2, the creaser device 5 includes five sets of creaser units 5 </ b> A to 5 </ b> E. Each of the creaser units has a function of forming a ruled line extending in the transport direction on the cardboard sheet SS and pressing a side end portion of the cardboard sheet SS during the crease forming process. FIG. 4 is a view of the corrugated board sheet SS conveyed in the direction of the arrow as viewed from above. The creeper unit 5A presses the side end portion FS located on the front side of the cardboard sheet SS shown in FIG. 4, and forms the first ruled line K1 close to the side end portion FS. The creaser units 5B to 5D form the remaining three ruled lines K2 to K4 on the cardboard sheet SS. The creeper unit 5E presses the side end BS located on the rear side of the cardboard sheet SS while the four ruled lines are formed .

(Creaser unit configuration)
Since the basic configuration of the five sets of the creamer units 5A to 5E shown in FIG. 2 is substantially the same, the detailed configuration will be described with reference to FIG. In FIG. 2, regarding the configuration of the other creaser unit other than the creaser unit 5 </ b> C shown in FIG. 3, the same components as the creaser unit 5 </ b> C are indicated by the same numbers with alphabetic characters corresponding to the respective creaser units. Yes. The creaser unit 5C has an upper movable frame 530 and a lower movable frame 550 across the transport path PL. The upper screw shaft 512 and the upper crease drive shaft 513 extend through the upper movable frame 530, and the lower screw shaft 522 and the lower crease drive shaft 523 extend through the lower movable frame 550 .

  A pair of upper guide rails 531 and 532 are fixed to the lower ends of the upper support bars 510 and 511. A pair of upper sliding bodies 533 and 534 are fitted to the upper guide rails 531 and 532 and are slidably attached to the guide rails. The upper sliding bodies 533 and 534 are fixed to the upper end portion of the upper movable frame 530. The upper movable frame 530 is configured to be movable in the sheet width direction across the conveyance path PL, that is, in the front-rear direction as the upper sliding bodies 533 and 534 slide.

  A pair of lower guide rails 551 and 552 are fixed to the upper ends of the lower support bars 520 and 521. A pair of lower sliding bodies 553 and 554 are fitted to the lower guide rails 551 and 552 and are slidably attached to the respective guide rails. The lower sliding bodies 553 and 554 are fixed to the lower end of the lower movable frame 550. The lower movable frame 550 is configured to be movable in the sheet width direction across the conveyance path PL as the lower sliding bodies 553 and 554 slide.

The upper ruled line roll 50 and the lower ruled line roll 51 can be fitted to the upper and lower creaser drive shafts 513 and 523, respectively, and rotate together with the respective creaser drive shafts. Both ruled line rolls 50 and 51 are rotatably supported by the upper movable frame 530 and the lower movable frame 550. The lower ruled line roll 51 has a lower processing tool 51a in which a protrusion is formed on the outer peripheral surface, and the upper ruled line roll 50 has an upper processing tool 50a in which one receiving surface facing the protrusion is formed on the outer peripheral surface. Have. The receiving surface of the upper processing tool 50a is made of polyurethane rubber having a predetermined hardness. In FIG. 2, the creaser units 5B and 5D are provided with upper processing tools 50aB and 50aD and lower processing tools 51aB and 51aD each having a receiving surface and a ridge like the creaser unit 5C. The upper processing tool 50aA and the lower processing tool 51aA having surfaces and ridges, the upper pressing body 50bA and the lower pressing body 51bA are provided, and the creaser unit 5E includes only the upper pressing body 50bE and the lower pressing body 51bE. When the ridge and the receiving surface are in a facing state, the cardboard sheet SS is conveyed between the ridge and the receiving surface, thereby extending the ruled lines K1 to K4 extending in the conveying direction (left-right direction) shown in FIG. Is formed.

  An upper supply roller 535 and an upper discharge roller 536 are disposed on the right and left sides of the upper ruled line roll 50 and are rotatably attached to the upper movable frame 530. Also, a lower supply roller 555 and a lower discharge roller 556 are disposed on the right and left sides of the lower ruled line roll 51 and are rotatably attached to the lower movable frame 550. The four rollers 535, 536, 555, and 556 are connected to the main drive motor 8 through a known power transmission mechanism. The corrugated cardboard sheet SS is nipped by supply-side rollers 535 and 555 and supplied from the right toward both ruled line rolls 50 and 51. After the ruled line is formed, the cardboard sheet SS is nipped by discharge rollers 536 and 556 and discharged to the left. .

Each of the upper nut member 537 and the lower nut member 557 has a tooth-shaped groove on the outer peripheral surface and a thread groove on the inner peripheral surface. The inner peripheral surfaces of both nut members 537 and 557 are screwed into the upper screw shaft 512 and the lower screw shaft 522, respectively. Both nut members 537 and 557 are rotatably attached to the upper movable frame 530 and the lower movable frame 550, respectively .

  An upper drive motor 538 is fixed to the upper movable frame 530 via a motor holder 539 in order to move the upper movable frame 530 in the seat width direction (front-rear direction). A lower drive motor 558 is fixed to the lower movable frame 550 via a motor holder 559 in order to move the lower movable frame 550 in the seat width direction. The upper drive motor 538 is attached to the motor holder 539 with the rotation shaft extending in the vertical direction, and the rotational force of the motor 538 is applied to the upper output shaft extending in the front-rear direction orthogonal to the rotation shaft via a known bevel gear mechanism. Is configured to be transmitted. An output pulley 540 shown in FIG. 3 is fixed to the upper output shaft. Similarly, the lower drive motor 558 is also attached to the motor holder 559 with the rotation shaft extending in the vertical direction, and the rotational force of the motor 558 is a known bevel gear on the lower output shaft extending in the front-rear direction orthogonal to the rotation shaft. It is configured to be transmitted via a mechanism. An output pulley 560 shown in FIG. 3 is fixed to the lower output shaft.

An upper detector 541 and a lower detector 561 are connected to the rotation shafts of the drive motors 538 and 558, and are configured to generate rotation pulses as the drive motors rotate. Both drive motors 538 and 558 are configured by known servo motors whose rotation amount and rotation direction are controlled in accordance with rotation pulses from both detectors 541 and 561 .

The upper transmission belt 542 is stretched between the upper output pulley 540 and the upper nut member 537 via a known tension pulley. Similarly, a lower transmission belt 562 is stretched between a lower output pulley 560 and a lower nut member 557 via a known tension pulley. Both transmission belts 542 and 562 are constituted by double-tooth belts having tooth grooves on both surfaces. The upper output pulley 540 and the upper transmission belt 542 constitute a power transmission mechanism that transmits the driving force of the upper drive motor 538 to the upper nut member 537 . The lower output pulley 560 and the lower transmission belt 562 constitute a power transmission mechanism that transmits the driving force of the lower drive motor 558 to the lower nut member 557 .

  In FIG. 3, the pair of upper sliding bodies 533 and 534 constitutes a support portion where the upper movable frame 530 is supported by the pair of upper support bars 510 and 511. The upper screw shaft 512 is disposed with respect to the upper movable frame 530 so as to be positioned at a central position between the pair of upper sliding bodies 533 and 534. The upper movable frame 530 has an intermediate region and left and right extending regions extending on the left and right sides of the intermediate region. The intermediate region is a region existing between the pair of upper sliding bodies 533 and 534. Similarly, the pair of lower sliding bodies 553 and 554 constitutes a support portion where the lower movable frame 550 is supported by the pair of lower support bars 520 and 521. The lower screw shaft 522 is disposed with respect to the lower movable frame 550 so as to be positioned at a central position between the pair of lower sliding bodies 553 and 554. The lower movable frame 550 also has an intermediate area and left and right extending areas, and the intermediate area is an area existing between the pair of lower sliding bodies 553 and 554. The left and right extended regions of both movable frames 530 and 550 are formed by cutting out the upper end corner or lower end corner of each movable frame. The motor holder 539 of the upper drive motor 538 is fixed to the upper end portion of the right extension region of the upper movable frame 530, and the motor holder 559 of the lower drive motor 558 is fixed to the lower end portion of the right extension region of the lower movable frame 550. It is fixed to. As shown in FIG. 3, the upper output pulley 540 is disposed at the same height as the upper screw shaft 512, and the lower output pulley 560 is disposed at the same height as the lower screw shaft 522. By the arrangement of the output pulley, the lengths of the upper transmission belt 542 and the lower transmission belt 562 are shortened, and fluctuations in the belt length during the driving operation are reduced. In the creaser unit 5C of this embodiment, it is preferable from the viewpoint of the weight balance of the movable frame that each drive motor is disposed in the middle region of the movable frame, but the middle region of the movable frames 530 and 550 is relatively narrow. The drive motors 538 and 558 are arranged in the extension region in order to increase the degree of freedom of the arrangement positions of the drive motors.

  The upper drive motor 538 is fixed to the upper movable frame 530 above the upper creaser drive shaft 513 constituting the support portion of the upper ruled line roll 50 having the upper processing tool 50a, and the lower drive motor 558 has the lower processing tool 51a. The lower crease roller 51 is fixed to the lower movable frame 550 below the lower creaser drive shaft 523 that constitutes the support portion of the lower ruled line roll 51. Since the vicinity of the cleaner drive shafts 513 and 523 that support the upper processing tool 50a and the lower processing tool 51a is a moving space for various members including the processing tool, the fixing position of the drive motor is limited, and the processing tool It is also an area that is easily affected by vibration caused by the machining operation. In the present embodiment, since the drive motor is fixed to a region away from the support portion of the processing tool, the degree of freedom of the arrangement position of the drive motor is increased, and the electrical power of the drive motor due to vibration from the processing tool is increased. It is possible to reduce the occurrence of poor connection at the connection portion as much as possible.

  As shown in FIG. 3, the screw shafts 512 and 522 and the creaser drive shafts 513 and 523 are substantially located on a common line perpendicular to the transport path PL. A central position between the upper sliding bodies 533 and 534 and a central position between the lower sliding bodies 553 and 554 are located on the vertical common line. In a state where the upper movable frame 530 supports various members such as the upper ruled line roll 50 and the upper drive motor 538, the upper movable frame 530 is arranged so that the center of gravity of the upper movable frame 530 is substantially located on the vertical common line. The shape has been determined. Similarly, when the lower movable frame 550 supports various members such as the lower ruled line roll 51 and the lower drive motor 558, the lower movable frame 550 is movable so that the center of gravity of the lower movable frame 550 is substantially located on the vertical common line. The shape of the frame 550 is determined.

(Drive motor arrangement)
The arrangement of the upper drive motor 538 and the lower drive motor 558 of the five sets of the cleaner units 5A to 5E will be described with reference to FIGS. Each part of each creaser unit is shown with the same constituent parts as the creaser unit 5C shown in FIG. 3 with alphabetical letters A to E corresponding to each creaser unit to the number indicating each part of the creaser unit 5C. ing. FIG. 5 is a plan view of the arrangement of the five upper drive motors 538A to 538E related to the upper screw shaft 512 as viewed from above the screw shaft 512, and FIG. 6 illustrates the five lower drive motors 558A to 558A related to the lower screw shaft 522. 558E is a plan view of the arrangement of 558E viewed from above the screw shaft 522. FIG. 5 and 6, the upper transmission belt 542 and the lower transmission belt 562 are omitted.

  In FIG. 5, the two upper drive motors on the two adjacent upper movable frames are arranged on opposite sides of the screw shaft 512. For example, the upper drive motor 538A of the upper movable frame 530A is disposed on the right side of the screw shaft 512, and the upper drive motor 538B of the upper movable frame 530B is disposed on the left side of the screw shaft 512. As a result, the upper drive motors 538A, 538C, and 538E are arranged on the right side of the screw shaft 512, and the upper drive motors 538B and 538D are arranged on the left side of the screw shaft 512.

  In FIG. 5, two power transmission mechanisms on two adjacent upper movable frames are arranged on surfaces where the two upper movable frames face each other. For example, with respect to the upper movable frame 530B, the upper nut member 537B and the upper output pulley 540B are disposed so as to be positioned on the rear surface of the upper movable frame 530B. Regarding the upper movable frame 530C, the upper nut member 537C and the upper output pulley 540C are disposed so as to be positioned on the front surface of the upper movable frame 530C facing the rear surface of the upper movable frame 530B. The power transmission mechanisms are similarly arranged for the upper movable frames 530D and 530E.

  In FIG. 6, two lower drive motors on two adjacent lower movable frames are arranged on opposite sides of each other with the screw shaft 522 interposed therebetween. For example, the lower drive motor 558A of the lower movable frame 550A is disposed on the right side of the screw shaft 522, and the lower drive motor 558B of the lower movable frame 550B is disposed on the left side of the screw shaft 522. As a result, the lower drive motors 558A, 558C, 558E are arranged on the right side of the screw shaft 522, and the lower drive motors 558B, 558D are arranged on the left side of the screw shaft 522.

  In FIG. 6, two power transmission mechanisms on two adjacent lower movable frames are disposed on surfaces where the two lower movable frames face each other. For example, regarding the lower movable frame 550A, the lower nut member 557A and the lower output pulley 560A are disposed so as to be positioned on the rear surface of the lower movable frame 550A. With respect to the lower movable frame 550B, the lower nut member 557B and the lower output pulley 560B are disposed so as to be positioned on the front surface of the lower movable frame 550B facing the rear surface of the lower movable frame 550A. The power transmission mechanism is similarly arranged with respect to the lower movable frames 550C and 550D.

  In the present embodiment, in order to configure the two drive motors so as to be located on opposite sides of the screw shaft, the power transmission mechanisms of the two drive motors are arranged on the surfaces where two adjacent movable frames face each other. Be placed. As a result, the assembly work of the drive motor and the power transmission mechanism to two adjacent upper movable frames or lower movable frames is facilitated. In addition, by attaching the upper movable frame or the lower movable frame formed in the same shape by changing the direction by 180 degrees, it can be used as two adjacent upper movable frames or lower movable frames. It becomes possible.

<Detailed configuration of slotter device>
A detailed configuration of the slotter device 6 will be described below with reference to FIGS. 7 is a partial sectional front view of the inside of the slotter device 6 shown in FIG. 1 as seen from the right side, and FIG. 8 is a partial sectional side view of the inside of the slotter device 6 shown in FIG. 7 as seen from the front side. In FIG. 7, the slotter device 6 includes a front device frame 700 and a rear device frame 701. A pair of upper support bars 710, 711 are installed between the upper ends of both apparatus frames 700, 701, and a pair of lower support bars 720, 721 are between the lower ends of both apparatus frames 700, 701. It is built in. As shown in FIG. 8, the upper support bars 710 and 711 are arranged at a predetermined interval in a direction parallel to the transport path PL, and the lower support bars 720 and 721 are also parallel to the transport path PL. They are arranged at predetermined intervals in the direction.

  One upper screw shaft 712 is fixed to both device frames 700 and 701 at a position close to the upper support bars 710 and 711, and one lower screw shaft 722 is close to the lower support bars 720 and 721. In this position, the two device frames 700 and 701 are fixed. Further, two upper slotter drive shafts 713 and 714 and two lower slotter drive shafts 723 and 724 are arranged with the conveyance path PL interposed therebetween, and are rotatably attached to both apparatus frames 700 and 701. The slotter drive shafts 713, 714, 723, and 724 are spline shafts, and are connected to the main drive motor 8 through a known power transmission mechanism. The upper screw shaft 712 and the lower screw shaft 722 are examples of the upper guide member and the lower guide member of the present invention.

  As shown in FIG. 7, the slotter device 6 includes five sets of slotter units 6 </ b> A to 6 </ b> E. Each slotter unit has a function of forming a groove extending in the conveying direction in the corrugated cardboard sheet SS and pressing a side end portion of the corrugated cardboard sheet SS during the grooving process. FIG. 9 is a view of the corrugated board sheet SS conveyed in the direction of the arrow after the grooving process is performed on the corrugated board sheet SS shown in FIG. 4 as viewed from above. The slotter unit 6A presses the side end portion FS located on the front side of the cardboard sheet SS shown in FIG. 9, and forms a joint CM on the side end portion FS. The slotter units 6B to 6D form three grooves S1 to S3 at opposite ends of the cardboard sheet SS. The slotter unit 6E presses the side end portion BS located on the rear side of the cardboard sheet SS during the grooving operation. Each slotter unit includes first and second slotter subunits 61 and 62 shown in FIG. 1 along the transport direction. The five sets of slotter units 6A to 6E are examples of a number of processing units of the present invention.

(Slotter unit configuration)
Since the basic configuration of the five sets of slotter units 6A to 6E is substantially the same, the detailed configuration of the slotter unit 6C will be described with reference to FIG. In FIG. 7, with respect to the configuration of the slotter unit other than the slotter unit 6 </ b> C shown in FIG. 8, the same components as the slotter unit 6 </ b> C are shown with the same numbers appended with alphabetic characters corresponding to the slotter units. Yes. The slotter unit 6C has an upper movable frame 730 and a lower movable frame 750 across the transport path PL. The upper screw shaft 712 and the upper slotter drive shafts 713 and 714 extend through the upper movable frame 730, and the lower screw shaft 722 and the lower slotter drive shafts 723 and 724 extend through the lower movable frame 750. Yes. The upper movable frame 730 and the lower movable frame 750 are examples of the upper movable frame and the lower movable frame of the present invention.

  A pair of upper guide rails 731 and 732 are fixed to the lower ends of the upper support bars 710 and 711. A pair of upper sliding bodies 733 and 734 are fitted to the upper guide rails 731 and 732 and are slidably attached to the guide rails. The upper sliding bodies 733 and 734 are fixed to the upper end portion of the upper movable frame 730. The upper movable frame 730 is configured to be movable in the sheet width direction across the conveyance path PL, that is, in the front-rear direction as the upper sliding bodies 733 and 734 slide.

  A pair of lower guide rails 751 and 752 are fixed to the upper ends of the lower support bars 720 and 721. A pair of lower sliding bodies 753 and 754 are fitted to the lower guide rails 751 and 752 and are slidably attached to the respective guide rails. Lower sliding bodies 753 and 754 are fixed to the lower end of lower movable frame 750. The lower movable frame 750 is configured to be movable in the sheet width direction across the conveyance path PL, that is, in the front-rear direction as the lower sliding bodies 753 and 754 slide.

  The upper first slotter 610 and the lower first slotter 611 in the first slotter subunit 61 can be fitted to the upper slotter drive shaft 713 and the lower slotter drive shaft 723, respectively, and rotate together with the respective slotter drive shafts. Further, the upper second slotter 620 and the lower second slotter 621 in the second slotter subunit 62 can be fitted to the upper slotter drive shaft 714 and the lower slotter drive shaft 724, respectively, and can rotate together with the respective slotter drive shafts. . The upper first and second slotters 610 and 620 are rotatably supported by the upper movable frame 730, and the lower first and second slotters 611 and 621 are rotatably supported by the lower movable frame 750. The upper first and second slotters 610 and 620 have slotter blades 610a and 620a, respectively, and the lower first and second slotters 611 and 621 have slotter receiving blades 611a and 621a, respectively. In FIG. 7 mainly showing the first slotter subunit 61, the slotter units 6B and 6D have the slotter blades 610aB and 610aD and the slotter receiving blades 611aB and 611aD, respectively, like the slotter unit 6C. 6A has an upper pressing body 610bA and a lower pressing body 611bA along with the slotter blade 610aA and the slotter receiving blade 611aA, and the slotter unit 6E has only an upper pressing body 610bE and a lower pressing body 611bE. When the slotter blade is fitted into the slotter receiving blade in a state where the upper slotter and the lower slotter face each other, the joint CM shown in FIG. 9 and the grooves S1 to S3 extending in the transport direction (left-right direction) are formed. The slotter blades 610a and 620a and the slotter receiving blades 611a and 621a or the pressing bodies 610b and 611b are examples of the upper processing tool and the lower processing tool of the present invention.

  An upper supply roller 735 and an upper discharge roller 736 are disposed on the right and left sides of the upper second slotter 620 and are rotatably attached to the upper movable frame 730. Also, a lower supply roller 755 and a lower discharge roller 756 are disposed on the right and left sides of the lower second slotter 621, and are rotatably attached to the lower movable frame 750. The four rollers 735, 736, 755, and 756 are connected to the main drive motor 8 through a known power transmission mechanism, and convey the cardboard sheet SS from the right side to the left side along the conveyance path.

  The upper nut member 737 and the lower nut member 757 have a tooth-shaped groove on the outer peripheral surface and a thread groove on the inner peripheral surface. The inner peripheral surfaces of the nut members 737 and 757 are screwed into the upper screw shaft 712 and the lower screw shaft 722, respectively. Both nut members 737 and 757 are rotatably attached to the upper movable frame 730 and the lower movable frame 750, respectively. The upper nut member 737 and the lower nut member 757 are examples of the upper rotating body and the lower rotating body of the present invention.

  An upper drive motor 738 is fixed to the upper movable frame 730 via a motor holder 739 in order to move the upper movable frame 730 in the seat width direction (front-rear direction). A lower drive motor 758 is fixed to the lower movable frame 750 via a motor holder 759 in order to move the lower movable frame 750 in the seat width direction. The upper drive motor 738 is attached to the motor holder 739 with the rotary shaft extending in the vertical direction, and the rotational force of the motor 738 is applied to the upper output shaft extending in the front-rear direction orthogonal to the rotary shaft via a known bevel gear mechanism. Is configured to be transmitted. An output pulley 740 shown in FIG. 8 is fixed to the upper output shaft. Similarly, the lower drive motor 758 is also attached to the motor holder 759 with the rotary shaft extending in the vertical direction, and the rotational force of the motor 758 is a known bevel gear on the lower output shaft extending in the front-rear direction orthogonal to the rotary shaft. It is configured to be transmitted via a mechanism. An output pulley 760 shown in FIG. 8 is fixed to the lower output shaft. Various mechanisms other than the bevel gear mechanism are used as a mechanism for converting the power transmission direction to the output shaft orthogonal to the rotation shaft of the drive motor.

  An upper detector 741 and a lower detector 761 are connected to the rotation shafts of the drive motors 738 and 758, and are configured to generate rotation pulses as the drive motors rotate. Both drive motors 738 and 758 are constituted by known servo motors whose rotation amount and rotation direction are controlled in accordance with the rotation pulses from both detectors 741 and 761. The upper drive motor 738 and the lower drive motor 758 are examples of the upper drive motor and the lower drive motor of the present invention.

  The upper transmission belt 742 is stretched between the upper output pulley 740 and the upper nut member 737 via a known tension pulley. Similarly, a lower transmission belt 762 is stretched between a lower output pulley 760 and a lower nut member 757 via a known tension pulley. Both transmission belts 742 and 762 are constituted by double-tooth belts having tooth grooves formed on both surfaces. The upper output pulley 740 and the upper transmission belt 742 constitute a power transmission mechanism that transmits the driving force of the upper drive motor 738 to the upper nut member 737, and are an example of the power transmission mechanism of the present invention. The lower output pulley 760 and the lower transmission belt 762 constitute a power transmission mechanism that transmits the driving force of the lower drive motor 758 to the lower nut member 757, and are an example of the power transmission mechanism of the present invention.

  In FIG. 8, the pair of upper sliding bodies 733 and 734 constitute a support portion where the upper movable frame 730 is supported by the pair of upper support bars 710 and 711. The upper screw shaft 712 is disposed with respect to the upper movable frame 730 so as to be positioned at a central position between the pair of upper sliding bodies 733 and 734. The upper movable frame 730 includes an intermediate region and left and right extending regions extending on the left and right sides of the intermediate region. The intermediate region is a region existing between the pair of upper sliding bodies 733 and 734. Similarly, the pair of lower sliding bodies 753 and 754 constitute a support portion where the lower movable frame 750 is supported by the pair of lower support bars 720 and 721. The lower screw shaft 722 is disposed with respect to the lower movable frame 750 so as to be positioned at the center position between the pair of lower sliding bodies 753 and 754. The lower movable frame 750 also has an intermediate area and left and right extending areas, and the intermediate area is an area existing between the pair of lower sliding bodies 753 and 754. An intermediate region of the upper movable frame 730 has an upward projecting portion 730a extending upward. The left and right extension regions of the lower movable frame 750 are formed by cutting out the lower end corner of the lower movable frame. The motor holder 739 of the upper drive motor 738 is fixed to the upper projecting portion 730a of the upper movable frame 730, and the motor holder 759 of the lower drive motor 758 is fixed to the lower end portion of the right extension region of the lower movable frame 750. ing. As shown in FIG. 8, the lower output pulley 760 is disposed at the same height as the lower screw shaft 722. By the arrangement of the output pulley, the length of the lower transmission belt 762 is shortened, and the fluctuation of the belt length during the driving operation is reduced. In the slotter unit 6C of the present embodiment, it is preferable from the viewpoint of the weight balance of the movable frame that each drive motor is disposed in an intermediate region of the movable frame. Since the intermediate region of the upper movable frame 730 is wider than the intermediate region of the upper movable frame 530 of the creaser unit 5C shown in FIG. 3, the upper drive motor 738 is disposed in the intermediate region of the upper movable frame 730. On the other hand, since the space below the intermediate region of the lower movable frame 750 is limited in the vertical direction, the lower drive motor 758 is disposed in the extension region in order to increase the degree of freedom of the position of the drive motor. ing.

  The upper screw shaft 712 is arranged on a line connecting the arrangement positions of the pair of upper sliding bodies 733 and 734 that constitute a support portion on which the upper movable frame 730 is supported. With the arrangement configuration of the upper screw shaft 712, when the upper movable frame 730 moves along the upper screw shaft 712 by the drive of the upper drive motor 738, the rotation caused by the two reaction forces acting on the two support portions. Since the moments work in directions that cancel each other, the upper movable frame 730 can move smoothly without being inclined with respect to the upper screw shaft 712 in the vertical direction.

  As shown in FIG. 8, the screw shafts 712 and 722 are substantially located on a common line perpendicular to the conveyance path PL. A central position between the upper sliding bodies 733 and 734 and a central position between the lower sliding bodies 753 and 754 are located on the vertical common line. In a state where the upper movable frame 730 supports various members such as the upper first and second slotters 610 and 620 and the upper drive motor 738, the center of gravity of the upper movable frame 730 is substantially positioned on the vertical common line. The shape of the upper movable frame 730 is determined. Similarly, in a state where the lower movable frame 750 supports various members such as the lower first and second slotters 611 and 621 and the lower drive motor 758, the center of gravity of the lower movable frame 750 is substantially positioned on the vertical common line. Thus, the shape of the lower movable frame 750 is determined.

(Drive motor arrangement)
The arrangement of the upper drive motors 738 of the five sets of slotter units 6A to 6E will be described with reference to FIG. Each part of each slotter unit is shown with the same constituent parts as the slotter unit 6C shown in FIG. 8, with alphabetical characters A to E corresponding to each slotter unit added to the numbers indicating the parts of the slotter unit 6C. ing. FIG. 10 is a plan view of an arrangement of five upper drive motors 738A to 738E related to the upper screw shaft 712 as viewed from above the screw shaft 712. FIG. In FIG. 10, the upper transmission belt 742 is omitted.

  In FIG. 10, two upper drive motors on two adjacent upper movable frames are arranged on opposite sides with the screw shaft 712 interposed therebetween. For example, the upper drive motor 738A of the upper movable frame 730A is disposed on the right side of the screw shaft 712, and the upper drive motor 738B of the upper movable frame 730B is disposed on the left side of the screw shaft 712. As a result, the upper drive motors 738A, 738C, and 738E are arranged on the right side of the screw shaft 712, and the upper drive motors 738B and 738D are arranged on the left side of the screw shaft 712.

  In FIG. 10, two power transmission mechanisms on two adjacent upper movable frames are arranged on surfaces where the two upper movable frames face each other. For example, with respect to the upper movable frame 730B, the upper nut member 737B and the upper output pulley 740B are disposed so as to be positioned on the rear surface of the upper movable frame 730B. With respect to the upper movable frame 730C, the upper nut member 737C and the upper output pulley 740C are disposed so as to be positioned on the front surface of the upper movable frame 730C facing the rear surface of the upper movable frame 730B. The power transmission mechanisms are similarly arranged with respect to the upper movable frames 730D and 730E.

  The arrangement of the lower drive motors 758 of the five sets of slotter units 6A to 6E is the same as the arrangement of the lower drive motors 558 of the five sets of cleaner units 5A to 5E shown in FIG.

<Electrical configuration>
The electrical configuration of the corrugated board box making machine 1 according to the first embodiment will be described below with reference to the accompanying drawings. FIG. 11 is a block diagram showing an electrical configuration of the corrugated cardboard box making machine 1 of the present embodiment. As shown in FIG. 11, in order to generally manage the processing of corrugated cardboard sheets in the corrugated cardboard box making machine 1, an upper management apparatus 1000 and a lower management apparatus 1100 are provided. In the present embodiment, the upper management apparatus 1000 displays control command information related to the rotational speed of the main drive motor 8, the size of the corrugated cardboard sheet, the processing quantity, and the like in accordance with a predetermined machining management plan for a large number of orders. Send to.

  The lower management apparatus 1100 controls the operation of the drive unit such as the main drive motor 8, the upper drive motor and the lower drive motor of each processing unit according to the control command information sent from the higher management apparatus 1000, and corrugated cardboard sheets for each order. This is a device that performs management control such as counting the number of processings and sending it to the host management device 1000. The subordinate management apparatus 1100 controls the operation of the entire drive unit provided in the corrugated cardboard box making machine 1, but only the drive unit directly related to the present invention is shown in FIG. It is. That is, FIG. 11 shows only a configuration in which the upper drive motor and the lower drive motor are rotationally controlled in order to move and position each processing unit of the creaser device 5 and the slotter device 6 in the sheet width direction (front-rear direction).

The lower management apparatus 1100 is connected to the creaser control apparatus 1200 and the slotter control apparatus 1300, respectively. The lower management apparatus 1100 supplies to both control apparatuses 1200 and 1300 command information relating to the size of the corrugated cardboard sheet of each order and the processing position for processing such as crease and grooving in the sheet width direction. The creaser control device 1200 is configured to receive rotation pulses from the upper detectors 541A to 541E and the lower detectors 561A to 561E. The crease control device 1200 determines the rotation direction, rotation amount, and rotation speed of the upper drive motors 538A to 538E based on the command information indicating the ruled machining position and the rotation pulses from the upper detectors 541A to 541E. Then, each upper drive motor is driven individually. In addition, the crease control device 1200 determines the rotation direction, rotation amount, and rotation speed of the lower drive motors 558A to 558E based on the command information indicating the ruled machining position and the rotation pulses from the lower detectors 561A to 561E. Determine and drive each lower drive motor individually. Similarly, the slotter controller 1300 is configured to receive rotation pulses from the upper detectors 741A to 741E and the lower detectors 761A to 761E. The slotter control device 1300 determines the rotation direction, the rotation amount, and the rotation speed of the upper drive motors 738A to 738E based on the command information indicating the grooving processing position and the rotation pulses from the upper detectors 741A to 741E. Then, each upper drive motor is driven individually. Further, the slotter control device 1300 determines the rotation direction, the rotation amount, and the rotation speed of the lower drive motors 758A to 758E based on the command information indicating the groove cutting processing position and the rotation pulses from the lower detectors 761A to 761E. Determine and drive each lower drive motor individually. The slotter control device 1300 is an example of a motor control unit of the present invention.

  The creaser control device 1200 holds information indicating the current position where the upper movable frames 530A to 530E are located in the sheet width direction (front-rear direction) in an internal counter corresponding to each upper movable frame, and lower in the sheet width direction. Information indicating the current position where the movable frames 550A to 550E are located is held in an internal counter corresponding to each lower movable frame. Similarly, the slotter control device 1300 also holds the current position information of the upper movable frames 730A to 730E and the current position information of the lower movable frames 750A to 750E in the seat width direction in the internal counter corresponding to each movable frame. Each control device determines the moving direction and moving amount of each movable frame based on the rotation pulse generated from each detector as each drive motor rotates, and adds or subtracts each internal counter. As a result, the contents of each internal counter represent the current position of each movable frame.

  The creaser control device 1200 and the slotter control device 1300 set the rotation direction and the rotation amount of each drive motor so that the machining position represented by the command information matches the current position represented by the contents of each internal counter. Configured to control.

<< Operation and Action of First Embodiment >>
(Normal crease and grooving)
The operation and action of the corrugated cardboard box making machine 1 according to the first embodiment will be described below. First, in this embodiment, an operation and an action when normal crease and grooving are performed on the cardboard sheet SS will be described. When executing a predetermined order in a processing management plan for a large number of orders, the upper management apparatus 1000 instructs control command information necessary for executing the predetermined order, for example, the sheet size and processing position of the cardboard sheet. Information to be supplied to the lower level management apparatus 1100. The lower-level management device 1100 supplies command information for instructing a ruled machining position to the creaser control device 1200 and supplies command information for instructing a grooving machining position to the slotter control device 1300.

  The crease control device 1200 presses the front side end portion FS of the corrugated cardboard sheet SS shown in FIG. 4 to form the first ruled line K1 close to the side end portion FS, thereby forming a ruled line represented by command information. The upper drive motor 538A and the lower drive motor 558A are rotated in a predetermined rotation direction according to the difference between the machining position of the current position and the current position represented by the contents of the internal counter, and the upper movable frame 530A and the lower movable frame 550A are Move to the crease processing position. The crease control device 1200 forms the second to fourth ruled lines K2 to K4 of the corrugated cardboard sheet SS shown in FIG. 4 and also presses the rear side end BS to indicate the ruled lines represented by the command information. The upper drive motors 538B to 538E and the lower drive motors 550B to 550E are rotated in a predetermined rotational direction according to the difference between the machining position of the current position and the current position represented by the contents of the internal counter, and the upper movable frames 530B to 530E and the lower part The movable frames 550B to 550E are moved to predetermined ruled positions.

  The slotter control device 1300 also performs the same control operation as the creaser control device 1200. Specifically, the slotter control device 1300 presses the front side end portion FS of the corrugated cardboard sheet SS shown in FIG. 9 to form the joining margin CM, and forms the first to third grooves S1 to S3. In order to press the rear side end FS, the upper drive motors 738A to 738E and the lower drive are driven in accordance with the difference between the grooving position represented by the command information and the current position represented by the contents of the internal counter. The motors 758A to 758E are rotated in a predetermined rotation direction, and the upper movable frames 730A to 730E and the lower movable frames 750A to 750E are moved to predetermined grooving positions.

  When each upper movable frame and each lower movable frame of the creaser device 5 are positioned, the upper processing tool 50a having the receiving surface and the lower processing tool 51a having the protrusions are in a processable position state facing each other. When the lower management apparatus 1100 drives the main drive motor 8 in this processable position state, the cardboard sheet SS is conveyed, whereby the ruled process shown in FIG. 4 is performed. When each upper movable frame and each lower movable frame of the slotter device 6 are positioned, the slotter blade 610a can be fitted into the slotter receiving blade 611a, and the slotter blade 620a can be fitted into the slotter receiving blade 621a. Each slotter blade and each slotter receiving blade are in a workable position state facing each other. When the corrugated cardboard sheet SS is conveyed in this processable position state, the grooving process shown in FIG. 9 is performed.

(Through operation)
In the present embodiment, when the corrugated cardboard sheet SS is cut into a special shape by the die cutter device 7, the corrugated cardboard sheet SS is passed through without being processed by the creaser device 5 and the slotter device 6. This through operation will be described below with reference to FIGS. FIG. 12 is an explanatory diagram showing a position state of the creaser units 5A to 5E when the cardboard sheet SS is passed through. FIG. 13 is an explanatory diagram showing a position state of the slotter units 6A to 6E when the cardboard sheet SS is passed through.

  When executing a predetermined order that requires understanding in a processing management plan related to a large number of orders, the upper management apparatus 1000 controls information required for executing the predetermined order, for example, a cardboard sheet SS. Information such as the sheet size and a command for prohibiting ruled and grooving are supplied to the subordinate management apparatus 1100. The lower management apparatus 1100 supplies the sheet size information and a command for prohibiting ruled processing to the creaser control device 1200, and supplies the sheet size information and a command for prohibiting grooving to the slotter control device 1300.

  In accordance with a command for prohibiting ruled processing, the creaser control device 1200, as shown in FIG. 2, the upper processing tools 50aA-50aD and the upper pressing bodies 50bA, 50bE, the lower processing tools 51aA-51aD and the lower pressing bodies 51bA, 51bE, In order to switch from the processable position state to which the upper and lower processing tools and the pressing body of at least one of the creamer units 5A to 5E are separated in the sheet width direction, Drive control of the lower drive motor 558 is performed. The position of each upper processing tool 50a, each lower processing tool 51a, each upper pressing body 50b, and each lower pressing body 51b in the sheet width direction is determined according to the sheet size information of the corrugated cardboard sheet SS to be passed. For example, in FIG. 12, the upper processing tool 50aA and the lower processing tool 51aA, together with the upper pressing body 50bA and the lower pressing body 51bA, are moved to the front side in a state of facing each other in order to retreat from the passage area of the cardboard sheet SS. . The upper pressing body 50bE and the lower pressing body 51bE are moved rearward in a state of facing each other in order to retreat from the passage area of the cardboard sheet SS. The upper processing tool 50aB and the lower processing tool 51aB are moved to the front side so as to face each other, and the front side of the corrugated board sheet SS between the rear lower end portion of the upper processing tool 50aB and the rear upper shoulder portion of the lower processing tool 51aB. Both processing tools 50aB and 51aB are positioned at positions where the side end portions of the two are pinched. The upper processing tool 50aD and the lower processing tool 51aD are moved to the rear side in a state of facing each other, and the rear side of the corrugated cardboard sheet SS between the front lower end portion of the upper processing tool 50aD and the front upper shoulder portion of the lower processing tool 51aD. Both the processing tools 50aD and 51aD are positioned at a position where the side end portions are sandwiched. The lower processing tool 51aC is positioned at the center position in the sheet width direction of the cardboard sheet SS, and supports the cardboard sheet SS from below. The upper processing tool 51aC is positioned at a position away from the lower processing tool 51aC in the sheet width direction.

  The slotter control device 1300 is in a processable position state where the upper slotter 610 and the lower slotter 611 face each other so that the slotter blade 610a can be fitted into the slotter receiving blade 611a as shown in FIG. Therefore, the upper drive motor 738 in a state where the slotter blades are not fitted into the slotter receiving blades in order to switch the slotters of at least one slotter unit among the slotter units 6A to 6E to the non-workable position state where they are separated in the sheet width direction. Further, drive control of the lower drive motor 758 is performed. The positions of the upper slotters 610 and the lower slotters 611 in the sheet width direction are determined according to the sheet size information of the corrugated cardboard sheet SS to be passed through. For example, in FIG. 13, the upper slotter 610A and the lower slotter 611A together with the upper pressing body 610bA and the lower pressing body 611bA retreat from the passage area of the cardboard sheet SS, so that the slotter blade 610aA can be fitted into the slotter receiving blade 611aA. In such a state that they face each other, they are moved to the front side. The upper slotter 610E and the lower slotter 611E are moved to the rear side in a state where the upper pressing body 610bE and the lower pressing body 611bE face each other in order to retreat from the passage area of the cardboard sheet SS. The upper slotter 610D and the lower slotter 611D are moved rearward with the slotter blades 610aD facing each other so that the slotter blades 610aD can be fitted into the slotter receiving blades 611aD. Both slotters 610D and 611D are positioned at a position where the rear side end portion of the cardboard sheet SS is sandwiched between the slotters 610D and 611D. On the other hand, the upper slotters 610B and 610C are moved away from the lower slotters 611B and 611C in the sheet width direction in a state where the slotter blades 610aB and 610aC are not fitted in the slotter receiving blades 611aB and 611aC. In this case, the slotter receiving blade 611aC of the lower slotter 611C is positioned at the center position in the sheet width direction of the cardboard sheet SS, and supports the cardboard sheet SS from below. Further, the slotter receiving blade 611aB of the lower slotter 611B is moved to face each other so that the slotter blade 610aC of the upper slotter 610C can be fitted, and the rear lower end portion of the upper slotter 610C and the rear upper end portion of the lower slotter 611B. The upper slotter 610C and the lower slotter 611B are positioned at a position where the front side end portion of the cardboard sheet SS is sandwiched between the upper slotter 610C and the lower slotter 611B. The upper slotter 610B is moved to the front side away from the lower slotter 611B in order to retract from the passage area of the cardboard sheet SS.

  When the lower management device 1100 drives the main drive motor 8 after the creaser device 5 and the slotter device 6 are switched to the unworkable position state as shown in FIGS. 12 and 13, the upper ruled line roll 50 of the creaser device 5 and The lower ruled line roll 51 rotates, and the upper first and second slotters 610 and 620 and the lower first and second slotters 611 and 621 of the slotter device 6 rotate. The corrugated board sheet SS is passed through the creaser device 5 by the rotation of the ruled line rolls 50 and 51, and is passed through the slotter device 6 by the rotation of the slotters 610, 611, 620 and 621. Specifically, in passing through the creaser device 5, the front and rear side end portions of the corrugated cardboard sheet SS are between the rear lower end portion of the upper processing tool 50aB and the rear upper shoulder portion of the lower processing tool 51aB. Since it is sandwiched between the front lower end of the upper processing tool 50aD and the front upper shoulder of the lower processing tool 51aD, the cardboard sheet SS is conveyed by the rotation of the upper and lower ruled line rolls. In passing through the slotter device 6, the front and rear side ends of the cardboard sheet SS are between the rear lower end of the upper slotter 610C and the rear upper end of the lower slotter 611B, and the front lower end of the upper slotter 610D. Since it is sandwiched between the upper end of the lower slotter 611D and the front slot, the cardboard sheet SS is conveyed by the rotation of the upper and lower slotters. As shown in FIG. 12, when the corrugated board sheet SS is passed through in the creaser device 5, the corrugated board sheet SS is supported from below by the lower processing tool 51aC, so that it is maintained in a horizontal state without hanging down, It is transported smoothly. Further, when the corrugated cardboard sheet SS warped upward is passed through the creaser device 5, the upper processing tool 50aC presses the corrugated cardboard sheet SS from above, so that the warped corrugated cardboard sheet SS is corrected to a horizontal state. . Even when the cardboard sheet SS is passed through in the slotter device 6, the cardboard sheet SS is supported from below by the slotter receiving blades 611aC of the lower slotter 611C and the slotter receiving blades of the lower slotter 621 in the slotter unit C. It is maintained in a horizontal state without sagging and is transported smoothly.

  When the cardboard sheet SS is passed through in the present embodiment, as shown in FIG. 12, the upper processing tool 50aC of the creaser unit 5C is an upper processing tool 50aD and a lower processing tool of the creaser unit 5D adjacent to the creaser unit 5C. It is positioned away from the lower processing tool 51aC at a position closer to the lower processing tool 51aC of the creaser unit 5C than the arrangement position of 51aD in the sheet width direction. As a result, if the upper processing tool 50aC of the creaser unit 5C is moved by a short distance to a position close to the position where the lower processing tool 51aC of the creaser unit 5C is moved, it is possible to switch to the non-workable position state. The position of the lower processing tool can be quickly switched.

[Second Embodiment]
A second embodiment in which the present invention is applied to a corrugated cardboard box making machine that performs processing such as printing and grooving on the corrugated cardboard sheet will be described below with reference to FIGS. 14 and 15. The second embodiment is different from the first embodiment regarding the configuration of the upper processing tool of the upper ruled line roll in the creaser apparatus. About the structure of 2nd Embodiment, the same number is attached | subjected to the component same as 1st Embodiment. FIG. 14 is a partial cross-sectional front view showing the internal configuration of the creaser device 5 in the second embodiment, corresponding to FIG. 2 showing the first embodiment. FIG. 15 is an enlarged view showing the upper processing tool 50aC-1 of the upper ruled line roll 50 and the lower processing tool 51aC of the lower ruled line roll 51 of the creaser unit 5C.

<Overall configuration>
In FIG. 14, the creaser device 5 has five sets of creaser units 5A to 5E. As in the first embodiment, each creaser unit is configured to be movable in the sheet width direction (front-rear direction) with the rotation of each drive motor by screwing the screw shaft and the nut member. The upper ruled line roll of each creaser unit, for example, the upper ruled line roll 50 of the creaser unit 5C, includes an upper processing tool 50aC-1. As shown in FIG. 15, two receiving surfaces 52 and 53 are formed on the outer peripheral surface of the upper processing tool 50aC-1 side by side in the sheet width direction. The receiving surface 52 is made of a relatively hard urethane rubber, and the receiving surface 53 is made of a relatively soft urethane rubber. For example, the receiving surface 52 has a hardness of 90 degrees and the receiving surface 53 has a hardness of 70 degrees. The receiving surface 52 is made of a high-quality paper such as pulp as a raw material, and is used when a corrugated cardboard sheet SS is subjected to a ruled process. The receiving surface 53 is used when a cardboard sheet SS made of waste paper as a raw material is subjected to a crease process , and is effective for preventing the cardboard sheet SS from cracking during the crease process .

<Electrical configuration>
The electrical configuration of the cardboard sheet box making machine of the second embodiment will be described below. The second embodiment has the same configuration as the electrical configuration of the first embodiment shown in FIG. 11, but is different from the first embodiment with respect to the control operations of the upper management device, the lower management device, and the creaser control device. . Note that the electrical configuration of the second embodiment will be described using the same numbers as those of the first embodiment.

  In the second embodiment, the upper management apparatus 1000, together with control command information related to the rotation speed of the main drive motor 8, the size of the corrugated cardboard sheet, the processed quantity, etc., in accordance with a predetermined machining management plan for a large number of orders. Is sent to the lower management apparatus 1100.

  As in the first embodiment, the lower management apparatus 1100 performs operations of drive units such as the main drive motor 8, the upper drive motor and the lower drive motor of each processing unit in accordance with the control command information sent from the upper management apparatus 1000. Control. Further, the lower management apparatus 1100 supplies the receiving surface designation information for designating the receiving surface to the creaser control apparatus 1200 according to the paper quality designation information sent from the upper management apparatus 1000. The creaser control device 1200 stores in advance the interval between the receiving surface 52 and the receiving surface 53 in the sheet width direction (front-rear direction) in the internal memory, and indicates the type of the receiving surface that the lower processing tool 51a currently faces in the internal memory. I remember it. As in the first embodiment, the creaser control device 1200 is configured so that the machining position represented by the command information supplied from the lower management device 1100 matches the current position represented by the contents of each internal counter. In addition, the rotation direction and the rotation amount of each drive motor are controlled. Further, when the receiving surface designated by the receiving surface designation information supplied from the lower level management device 1100 is different from the receiving surface stored in the internal memory, the creaser control device 1200 receives both receptions stored in the internal memory. Based on the distance between the surfaces, the rotational direction and the amount of rotation of the lower drive motor are controlled so that the receiving surface specified by the receiving surface specification information faces the lower processing tool 51a. Since the control operation of the slotter control device 1300 is the same as that of the first embodiment, the description thereof is omitted.

[Modification]
The embodiment of the present invention has been described above, but various modifications can be made by those skilled in the art without departing from the spirit of the present invention.

(1) The first embodiment is a double slotter type corrugated board box making machine provided with a slotter device 6 having first and second slotter subunits 61 and 62 along a transport path PL. Instead of this double slotter configuration, the present invention is also applied to a single slotter configuration in which two slotter blades are attached to one slotter cylinder. In this case, the slotter cylinder of the slotter device and the ruled line roll of the creaser device are supported by one movable frame and move together in the sheet width direction. The upper movable frame and the lower movable frame are allowed to move relative to each other when the slotter blade is not fitted into the slotter receiving blade.

(2) In the first and second embodiments, the creaser control device 1200 and the slotter control device 1300 drive the upper drive according to the difference between the machining position represented by the command information and the current position represented by the contents of the internal counter. The motor and the lower drive motor are used as servomotors to rotate in a predetermined rotation direction, and the upper movable frame and the lower movable frame are moved to predetermined processing positions. In this configuration, a detector is provided to know the current position. If a pulse motor that rotates by a certain angle in response to each drive pulse is used as the drive motor instead of the configuration including the servo motor and the detector, the detector is not necessary.

(3) In the second embodiment, the two receiving surfaces 52 and 53 are provided on the upper ruled line roll 50a-1, but three or more receiving surfaces may be provided. In the second embodiment, the rotation direction and the rotation amount of the lower drive motor are controlled in order to change the relative positions of the two receiving surfaces 52 and 53 and the lower processing tool 51a in the sheet width direction. However, instead of this, a configuration in which the rotation direction and the rotation amount of the upper drive motor or both drive motors are controlled may be employed.

(4) In the first and second embodiments, the five nut members are screwed into one screw shaft. However, the present invention is not limited to this configuration, and a plurality of screw shafts are provided. In such a case, any configuration may be used as long as the plurality of nut members are screwed onto at least one of the plurality of screw shafts. For example, two screw shafts are fixed to the apparatus frame with their axes aligned, and three nut members in five nut members are screwed into one screw shaft, and the remaining two nut members are fixed to the other screw shaft. The structure which screws together may be sufficient. In this case, the range in which each nut member moves on the screw shaft is small, but the two screw shafts installed between the device frames are arranged with their axes aligned, so that one screw shaft is provided. As in the first and second embodiments, the internal configuration of the apparatus can be simplified and reduced in size.

(5) In the first and second embodiments, the upper drive motor and the lower drive motor are fixed to each movable frame so that their rotation axes are parallel to each movable frame, whereby each processing unit is seated. It is configured not to occupy a large space in the width direction. However, when a small motor can be used as the drive motor, the drive motor may be fixed to the movable frame so that the rotation axis of the drive motor is perpendicular to the movable frame.

(6) In the first and second embodiments, the upper nut member and the lower nut member are rotatably attached to each movable frame. The present invention is not limited to a configuration in which the nut member that is a rotating body is directly attached to the movable frame, but the nut member is attached to the movable frame via a member fixed to the movable frame or a housing of the apparatus. May be. For example, when the guide member is composed of a rack, the rotating body is composed of a pinion that meshes with the rack, and the pinion is coupled to the rotation shaft of the drive motor, the pinion is coupled to the rotation shaft of the drive motor or the rotation shaft thereof. It is attached to the movable frame through a member.

(7) In the first and second embodiments, the upper first and second slotter blades 610A, 620A are attached to both slotters so as to always protrude from the outer peripheries of the upper first and second slotters 610, 620. . Instead of this configuration, each slotter blade may be attached to the slotter so that it can protrude from the outer periphery of the slotter and be housed inside the slotter as the eccentric rotating body rotates. When the cardboard sheet SS is passed through in a state in which the slotter blade is stored in this projecting and retractable configuration, it is not necessary for the upper movable frame to be retracted from the passage region of the cardboard sheet SS in the sheet width direction. Since the first and second slotters 610 and 620 are separated from the lower first and second slotters 611 and 621 in the sheet width direction, the cardboard sheet SS is conveyed without being damaged by the pressure between the upper and lower slotters. The

(8) As a case where the upper processing tool and the lower processing tool are relatively moved in the sheet width direction, the case where the corrugated cardboard sheet SS is passed through will be described as an example in the first embodiment, and the second embodiment will be described. In the above description, the case where the two receiving surfaces 52 and 53 of the upper processing tool 50a-1 are switched is described as an example. In addition to the above two examples, the present invention can also be applied to a case where a known two-surface joint is executed. In the case of the two-surface joint, the upper processing tools 50aA and 50aB and the lower processing tools 51aA and 51aB of the creaser units 5A and 5B are positioned in the processable position state, and the processing tools of the remaining creaser units 5C to 5E are incapable of processing. Positioned to the state. Further, the slotter blades and the slotter receiving blades of the slotter units 6A and 6B are positioned at the workable position, and the upper slotters of the remaining slotter units 6C to 6E are positioned at a position retracted from the passage area of the cardboard sheet SS.

(9) In the first embodiment, as shown in FIG. 12, the corrugated cardboard sheet SS is supported from below by one lower processing tool 51aC and pressed from above by one upper processing tool 50aC in passing through the creaser device 5. Has been. Instead of such a supporting and pressing method, as shown in FIG. 16, the cardboard sheet SS is supported from below by the two lower processing tools 51aB and 51aC, and pressed from above by the two upper processing tools 50aB and 50aC. The front and rear side edges of the corrugated cardboard sheet SS are located between the rear lower end of the upper processing tool 50aA and the rear upper shoulder of the lower processing tool 51aA, and the front lower end and lower processing of the upper processing tool 50aD. It is also possible to adopt a method in which the tool 51aD is sandwiched between the upper shoulders on the front side.

(10) In the first embodiment, the cardboard sheet SS is supported from below by the slotter receiving blades 611aC when the slotter device 6 is passed through. However, if the size of the corrugated board sheet SS in the sheet width direction is not so large, it is not necessary to support the cardboard sheet SS from below by the slotter receiving blade, so the front and rear sides of the corrugated board sheet SS are not supported from below. These side end portions may be sandwiched and conveyed between the lower end portion of the upper slotter and the upper end portion of the lower slotter. In this case, the upper slotter and the lower slotter are moved in the sheet width direction so as to face each other so that the slotter blades can be fitted into the slotter receiving blades for the slotter device 6 to pass through.

It is drawing which shows the whole structure of the cardboard sheet box making machine 1 which concerns on the 1st Embodiment of this invention. It is a fragmentary sectional front view which shows the internal structure of the creaser apparatus 5 which concerns on 1st Embodiment. It is a fragmentary sectional side view which shows the structure of the creaser unit 5C which concerns on 1st Embodiment. It is a top view which shows the corrugated cardboard sheet | seat SS in which the ruled process was given in 1st Embodiment. It is a top view which shows the arrangement | sequence state of the upper drive motors 538A-538E of the creaser apparatus 5 which concerns on 1st Embodiment. It is a top view which shows the arrangement | sequence state of the lower drive motors 558A-558E of the creaser apparatus 5 which concerns on 1st Embodiment. It is a fragmentary sectional front view which shows the internal structure of the slotter apparatus 6 which concerns on 1st Embodiment. It is a fragmentary sectional side view which shows the structure of the slotter unit 6C which concerns on 1st Embodiment. It is a top view which shows corrugated-cardboard sheet | seat SS in which groove processing was given in 1st Embodiment. It is a top view which shows the arrangement | sequence state of upper drive motor 738A-738E of the slotter apparatus 6 which concerns on 1st Embodiment. 1 is a block diagram showing an electrical configuration of a corrugated board box making machine 1 according to a first embodiment. It is explanatory drawing which shows the state by which the creaser apparatus 5 was switched to the unworkable position state in 1st Embodiment. It is explanatory drawing which shows the state by which the slotter apparatus 6 was switched to the process impossible position state in 1st Embodiment. It is a fragmentary sectional front view which shows the internal structure of the creaser apparatus 5 which concerns on the 2nd Embodiment of this invention. It is sectional drawing which expands and shows upper processing tool 50aC-1 and lower processing tool 51aC which concern on 2nd Embodiment. It is explanatory drawing which shows the state by which the slotter apparatus 6 was switched to the unworkable position state in the modification of 1st Embodiment.

DESCRIPTION OF SYMBOLS 1 Corrugated board box making machine 5 Creaser unit 5A-5E Creaser unit 6 Slotter unit 6A-6E Slotter unit 50aA-50aD, 50a-1 Upper processing tool 51aA-51aD Lower processing tool 50bA, 50bE Upper pressing body 51bA, 51bE Lower pressing body 52, 53 Receiving surface 500, 501, 700, 701 Device frame 512, 712 Upper screw shaft 522, 722 Lower screw shaft 530A-530E, 730A-730E Upper movable frame 550A-550E, 750 Lower movable frame 537A-537E, 737A- 737E Upper nut member 557A-557E, 757 Lower nut member 538A-538E, 738A-738E Upper drive motor 558A-558E, 758 Lower drive motor 610aA-610aD, 620a Slotter blade 11aA~611aD, 621a slotter receiving blade 610bA, 610bE upper pressing member 611bA, 611bE lower pressing member creaser controller 1200
Slotter control device 1300
SS cardboard sheet

Claims (10)

A number of processing units arranged in the sheet width direction across the transport path in order to process the corrugated cardboard sheet transported along the transport path, each processing unit being an upper processing unit disposed above and below the transport path. A number of processing units including a tool and a lower processing tool, and an upper movable frame and a lower movable frame that are arranged to be movable in the sheet width direction and support the upper processing tool and the lower processing tool, respectively.
One upper guide member that extends in the sheet width direction and is fixed to the apparatus frame in order to guide a plurality of upper movable frames that each of the plurality of processing units has in the sheet width direction;
One lower guide member that extends in the sheet width direction and is fixed to the apparatus frame in order to guide the plurality of lower movable frames included in each of the plurality of processing units in the sheet width direction;
A plurality of upper rotating bodies provided rotatably on the plurality of upper movable frames, respectively, and engaged with the upper guide members;
A plurality of lower rotating bodies provided rotatably on the plurality of lower movable frames, respectively, and engaged with the lower guide members,
A plurality of upper drive motors fixed to the plurality of upper movable frames, respectively, for rotating and driving the plurality of upper rotating bodies;
A plurality of lower drive motors fixed to the plurality of lower movable frames, respectively, for rotating and driving the plurality of lower rotating bodies;
In order to switch the position state between the processable position state where the upper processing tool and the lower processing tool face each other and the non-processable position state separated in the sheet width direction, the multiple upper drive motors and the multiple A motor control unit for controlling the driving of the lower drive motor;
In order to support the upper movable frame and the lower movable frame of each processing unit so as to be movable in the sheet width direction, a pair of upper portions erected on the apparatus frame at a predetermined interval in a direction parallel to the conveyance path. A support bar and a pair of lower support bars,
Each of the upper drive motors is fixed so as to be located in an intermediate region existing between two support portions on each upper movable frame supported by the pair of upper support bars,
Each of the lower drive motors is located in an extension region extending in a direction parallel to the transport path from an intermediate region existing between two support portions on each lower movable frame supported by the pair of lower support bars. cardboard sheet box making machine to be fixed so as to. The multiple upper drive motors or the multiple lower drive motors fixed to the multiple upper movable frames or the multiple lower movable frames, respectively, are two upper movable frames or two lower movable frames adjacent in the seat width direction. 2. The corrugated board sheet-made product according to claim 1 , wherein two upper drive motors or two lower drive motors respectively fixed to the frame are arranged so as to be positioned on opposite sides of the upper guide member or the lower guide member. Box machine. The corrugated cardboard sheet according to claim 1 or 2 , wherein the upper guide member is fixed so as to be positioned on a line connecting two support portions on the upper movable frame supported by the pair of upper support bars. Box machine. The upper guide member is fixed at a central position of two support portions on each upper movable frame supported by the pair of upper support bars,
The corrugated board box making machine according to any one of claims 1 to 3 , wherein the lower guide member is fixed at a central position of two support portions on each lower movable frame supported by the pair of lower support bars. . When the position state of the upper processing tool and the lower processing tool included in the specific processing unit among the plurality of processing units is switched to the non-processable position state, the motor control unit may be one of the upper processing tool and the lower processing tool. This processing tool is located at a predetermined position closer to the position of the other processing tool than the position in the sheet width direction of the upper processing tool and the lower processing tool of another processing unit adjacent to the specific processing unit. The corrugated board box making machine according to any one of claims 1 to 4 , wherein driving of the plurality of upper drive motors and the plurality of lower drive motors is controlled so as to be positioned apart from the other processing tool. In order to transmit the driving force of the multiple upper drive motors or the multiple lower drive motors to the multiple upper rotating bodies or the multiple lower rotating bodies, respectively, the multiple upper movable frames or the multiple lower movable frames. Equipped with a large number of power transmission mechanisms,
The cardboard sheet box according to any one of claims 1 to 5, wherein the plurality of power transmission mechanisms are arranged on surfaces of two upper movable frames or two lower movable frames adjacent to each other in the seat width direction. Machine. When processing is not performed on the sheet surface that extends in the sheet width direction of the corrugated cardboard sheet, the motor control unit is configured such that at least one pair of the upper processing tool and the lower processing tool in the unprocessable position state faces the sheet surface. The corrugated board box making machine according to any one of claims 1 to 6, wherein driving of the plurality of upper drive motors and the plurality of lower drive motors is controlled so that the plurality of upper drive motors are positioned. Each of the upper drive motors is fixed to the upper movable frame above a support portion where the upper processing tool is supported on the upper movable frame,
The corrugated board box making machine according to any one of claims 1 to 7, wherein each of the lower drive motors is fixed to the lower movable frame below a support portion on which the lower processing tool is supported on the lower movable frame. . Each processing unit is composed of a crease unit that performs crease processing on a cardboard sheet,
The crease forming unit is configured to convey a first processing roll on which ridges for crease are formed and a second processing roll having at least two receiving surfaces that sandwich the corrugated cardboard sheet between the ridges. It has up and down direction across
At least two receiving surfaces of the second processing roll are arranged in the sheet width direction and are formed of materials of different hardness;
The motor control unit, so that the protrusion is selectively opposed to the one of the at least two receiving surfaces, one of the preceding claims for controlling at least one of driving of the upper drive motor and the lower drive motor A cardboard sheet box making machine according to crab. The corrugated board box making machine according to any one of claims 1 to 9 , wherein the upper guide member and the lower guide member are fixed to the apparatus frame so as to be positioned on a common line perpendicular to the conveyance path.

Images