JP2010179547A - Corrugating machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a corrugating machine, wherein a trim part is surely cut off in a proper size to ensure suction and suction stoppage of the trim part into a trim suction port, when switching slitter devices. <P>SOLUTION: Both ends of a corrugated cardboard sheet S is slit with the outermost cutter 19 of the slitter axis 18 of a slitter scorer apparatus 12, so that a trim part T is formed in both ends of the corrugated cardboard sheet S. In the downstream side in the transporting direction of the corrugated cardboard sheet S relative to the slitter scorer apparatus 12, trim suction ports 20 for sucking the trim part T are installed through a support base 26. The body part of the trim cutting apparatus 36 for cutting the starting end and the completing end of the trim part T is installed in a part being between the slitter axis 18 of each slitter scorer apparatus 12 and the trim suction ports 20, through a moving mechanism 30 for moving along the width direction of the slitter scorer apparatus 12. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention not only prevents the corrugated cardboard sheet from being caught when passing through the slitter device, but also at the time of switching the slitter device, the trim portion is surely cut at an appropriate size so that the trim portion can be sucked into the trim suction port. The corrugating machine capable of reliably stopping the suction is suitable for inhaling or stopping the suction at the trim suction port when switching the slitter device such as the slitter scorer device or the slitter slitter device for processing the cardboard sheet.

  In the corrugating machine for producing corrugated cardboard products, the corrugated cardboard product is produced by a wet-end process for making corrugated cardboard sheets into a corrugated cardboard sheet. There is generally a dry end process for processing and stacking sheets to a predetermined size. In this dry end process, for example, a slitter scorer device is disposed in the slitter device, and the slitter scorer device slits the cardboard sheet along the flow direction of the cardboard sheet, and the ruled line for folding the cardboard sheet. Is to be processed.

  However, two slitter scorer devices are usually installed in the corrugating machine, and these slitter scorer devices can be operated by setting the processing dimensions of the next order in the other slitter scorer device during operation of one slitter scorer device. By using two slitter scorer devices alternately, it is possible to continuously process cardboard sheets.

  Along with this, when a corrugated sheet is continuously processed using a corrugated sheet that is rolled with a predetermined paper width, the corrugated sheet is slit to a predetermined dimension, so that a trim that does not become a product at both ends of the corrugated sheet. Part occurs. The trim portion is sucked at the trim suction port, and is pulverized by the cutter blower and is sent to the processing device by air. When the slitter scorer device is switched, the trim suction port for sucking the trim portion is also switched.

  For example, since the trim portion currently sucked into the trim suction port is not separated from the corrugated cardboard sheet after the slitting by the slitter blade is completed, the end of the trim portion cannot be sucked. Therefore, in order to finish the suction of the trim portion at the end of the slit, the trim portion is cut by the trim cutting device. On the other hand, the slitter scorer device on the new driving side also has a trim portion, and therefore, the trimming device cuts the starting end of the trim portion from the corrugated cardboard sheet to suck the trim portion.

  Here, one set of the trim cut device according to the prior art is installed on the upstream side of the slitter scorer device. A general trim cut device is a rotary shear method in which movable cutters are arranged at both ends of an upper roll having a size corresponding to the entire width of the device, and the lower side is constituted by a receiving roll such as urethane. It is. That is, when the upper cutter is positioned at a predetermined position and the upper roll is rotated once while the receiving roll is rotated, the corrugated cardboard serving as a trim portion is applied by a mechanism that applies the cutter to the receiving roll and cuts the cardboard sheet with the cutter. The part of the sheet was cut.

Next, the case where the trim cut which is the cutting of the trim portion is performed by the corrugating machine according to the related art will be specifically described below.
As shown in FIGS. 7 and 8A, the trim portion T generated by slitting both ends of the corrugated cardboard sheet S by the two slitter scorer devices 112 constituting the conventional corrugating machine is formed in the trim suction port 114. Inhaled. However, when the trim portion T is not inhaled, the shutter 116 is controlled to close.

  When switching from the old order of cardboard to the new order, the switching timing is controlled so that the rise of the slitter scorer device 112 of the old order and the drop of the slitter scorer device 112 of the new order overlap. Along with this, trim cutting is performed by the trim cutting device 118 located upstream in the transport direction (arrow A direction) with respect to the two slitter scorer devices 112 during the overlap.

  In the case of proper operation at the time of order switching, the corrugated cardboard sheet S as shown in FIG. 8A is positioned at the proper trim cut TC. As shown in FIG. 7, since only one conventional trim cut device 118 is installed on the upstream side of the slitter scorer device 112, it is necessary to align the position of the trim cut TC with the switching position of the slitter scorer device 112. Overlapping switching as shown in FIG. 8A is necessary.

  That is, when the slitter scorer device 112 is lifted at the end of the old order, the slitter blade that has slit the trim portion T is also lifted, and the trim portion T is not branched and cannot be sucked at the trim suction port 114. Therefore, it is necessary to cut the trim portion T as the slitter scorer device 112 rises.

  On the other hand, when the slitter scorer device 112 of a new order descends and starts operation, the slit of the trim part T is made, but the start end of the trim part T is not separated from the cardboard sheet S. Since it is not sucked by the trim suction port 114, it flows to the cutter device located on the downstream side. Therefore, it is necessary to cut the trim portion T in the same manner as the slitter scorer device 112 of the new order is lowered.

JP 2000-135696 A Japanese Patent Laid-Open No. 9-248788 Japanese Patent Laid-Open No. 6-210772 JP-A-5-84696

  As described above, in the conventional trim cut device 118, the upper roll having a size corresponding to the entire width of the device is rotated, so that the capacity of the drive motor is increased to about 3.7 kW, for example, and the required power is increased. Was. There is also a trim cutting device 118 that arranges a round blade on the upper side and moves the round blade laterally when the trim portion T is cut. However, even in this case, there is a drawback that the required power increases.

  Further, since there is sheet meandering and misalignment between the trim cut device 118 and the slitter scorer device 112 that is normally installed in two units, when the corrugated cardboard sheet S is cut by the trim cut device 118, FIG. As shown in FIG. 8 (A), it was cut larger than the width dimension of the trim portion T.

  On the other hand, if there is a shift in synchronization at the time of order change and the trim cut is out of sync, the cardboard sheet S as shown in FIG. 8B will be cut at the position of the trim cut TC where it cannot be cut properly. Become. This is likely to occur when the switching speed is greatly different. In the case shown in FIG. 8B, the stop of the suction of the trim part T of the old order is not a problem, but the suction start of the trim part T of the new order is started. The trim part T will flow downstream.

  Further, the trim portion T that is not branched into the trim suction port 114 is clogged, so that jamming may occur, and the cardboard sheet S is cut upstream of the slitter scorer device 112. If the cut portion is swollen or the like, it also has a disadvantage that it is caught when passing through the slitter scorer device 112 and similarly jammed up.

  Further, in the trim cut device 118 according to the prior art, the trim portion T can be sucked through the trim suction port 114 as the trim portion T of the corrugated board sheet S cannot be cut due to wear of the urethane roll or the like forming the lower roll. It had the disadvantage of disappearing.

  On the other hand, in the structure of the trim cut device 118 according to the prior art, there is a distance between the trim cut device 118 and the two slitter scorer devices 112 that are normally installed, so the trim cut position and the slitter scorer device 112 are switched. When the control for synchronizing the positions is complicated and the switching position and the cutting position are deviated from each other, the trim portion T cannot be properly cut as shown in FIG. The trim portion T cannot be sucked through the port 114.

  In consideration of the above-mentioned fact, the present invention not only prevents the corrugated cardboard sheet from being caught when passing through the slitter device, but also at the time of switching the slitter device, the trim portion is surely cut at an appropriate size to the trim suction port. The first object is to provide a corrugating machine that can surely inhale and stop the inhalation of the trim portion. Not only does the cardboard sheet not get caught when passing through the slitter device, but also the required power when switching the slitter device. A second object of the present invention is to provide a corrugating machine that can be surely cut and trimmed into an appropriate size to ensure that the trim portion is sucked into and stopped from the trim suction port while being reduced in size.

A corrugating machine according to claim 1 is a slitter device that slits an end of a sheet to be conveyed,
A trim suction port for sucking a trim portion generated at the slit end of the work sheet;
A trim cutting device having a cutting blade for cutting the start and end of the trim part;
Corrugating machine equipped with
The trim cut device is installed between the slitter device and the trim suction port.

The operation of the corrugating machine according to claim 1 will be described below.
According to the corrugating machine of this claim, as the slitter device slits the end portion of the processed sheet to be conveyed, the trim suction port sucks the trim portion generated at the end portion of the slit processed sheet. In addition, the trim blade is cut at the start and end by the cutting blade of the trim cutting device. And in the corrugating machine of this claim, this trim cut device is installed between the slitter device and the trim suction port.

  Therefore, according to the corrugating machine of the present invention, since the trim cut device is positioned on the downstream side in the conveyance direction of the processed sheet with respect to the slitter device, the processed sheet is not caught when passing through the slitter device. . Further, at the time of switching the slitter device, the start and end of the trim portion are surely cut and separated from the work sheet by the trim cut device at an appropriate size, and the trim portion is sucked into and sucked into the trim suction port. The stop is made reliably.

The operation of the corrugating machine according to claim 2 will be described below.
The corrugating machine according to the present invention has the same effect as that of the first aspect. However, in this claim, the cutting blade is a rotary cutting blade that rotates and cuts the trim portion, and the control means rotates so that the cutting position by the rotary cutting blade becomes the start end position and the end position of the trim portion. It has the structure of positioning control of the cutting position of the cutting blade.

  In other words, according to this claim, the control means controls the cutting position of the rotary cutting blade so that the cutting position of the trim portion by the rotary cutting blade becomes an appropriate start position and end position of the trim part. As compared with the case where the upper roll having a size corresponding to the entire width of the apparatus is rotated, the cutting can be performed with a small force.

  As a result, as the drive motor with a small capacity can be used, the starting power and the finishing edge of the trim part are processed by the trim cutting device when switching the slitter device while reducing the power required for cutting. The trim portion is reliably cut and separated at an appropriate size, and the trim portion is reliably inhaled and stopped.

The operation of the corrugating machine according to claim 3 will be described below.
The corrugating machine according to the present invention has the same effect as that of the second aspect. However, the present invention has a configuration in which the stationary receiving blade that cuts the processed sheet with the rotary cutting blade is fixed so as to extend in a direction substantially orthogonal to the conveying direction of the processed sheet. is doing.

  In other words, according to the present invention, the fixing receiving blade that is fixed in a shape extending in a direction substantially orthogonal to the conveyance direction of the work sheet exists corresponding to the rotary cutting blade, and these work sheets Therefore, the trim portion can be cut reliably and easily.

The operation of the corrugating machine according to claim 4 will be described below.
The corrugating machine according to the present invention has the same effect as that of the second aspect. However, in this claim, there are a plurality of slitter devices, and trim suction ports corresponding to the number of the slitter devices are provided, and the rotary cutting blade is rotated in synchronization with the switching operation between the plurality of slitter devices. Thus, the trim portion has a configuration in which the start and end of the trim portion are cut, and the trim portion is sucked into the trim suction port and stopped.

  In other words, according to this claim, along with the switching of the slitter device at the time of order switching, the trimming device only rotates the rotary cutting blade of the trim cutting device in synchronism with this switching operation, and only the start and end of the trim portion By cutting at, the start and end of the trim portion are reliably separated from the work sheet, and the trim portion is reliably sucked into the trim suction port and stopped.

  As described above, according to the above configuration of the present invention, not only does the cardboard sheet not get caught when passing through the slitter device, but also when the slitter device is switched, the trim portion is surely cut at an appropriate size. It has an excellent effect of providing a corrugating machine that can surely inhale and stop the inhalation of the trim part to the trim inlet, and not only does the cardboard sheet not get caught when passing through the slitter device, but also the slitter device At the time of switching, it is possible to provide a corrugating machine that can surely cut the trim part at an appropriate size and reliably inhale and stop the trim part to the trim inlet while reducing the required power. Also have.

It is a principal part front view of the corrugating machine which concerns on one embodiment of this invention. It is a top view of the corrugating machine concerning one embodiment of the present invention, and is a figure showing conveyance of a corrugated cardboard sheet. It is a top view of the corrugating machine which concerns on one embodiment of this invention, Comprising: It is a figure which shows the structure of a trim duct. It is a principal part enlarged side view which shows the moving mechanism etc. of the corrugating machine which concerns on one embodiment of this invention. It is a flowchart which shows the operation | movement procedure of the corrugating machine which concerns on one embodiment of this invention. It is a top view of the corrugated cardboard sheet processed with the corrugating machine concerning one embodiment of the present invention. It is a principal part schematic front view of the corrugating machine which concerns on a prior art. It is a top view of the corrugated cardboard sheet processed with the corrugating machine concerning a prior art, (A) is a figure showing the state trimmed appropriately, (B) The figure which shows the state trimmed and cut off is there.

One embodiment of a corrugating machine according to the present invention is shown in FIG. 1 to FIG. 6, and this embodiment will be described based on these drawings.
The corrugating machine 10 according to the present embodiment includes a dry end process in addition to a wet end process (not shown), and the main part of the apparatus used in the dry end process is covered as shown in FIGS. A slitter scorer device 12, which is two slitter devices arranged side by side along the conveying direction (arrow A direction) of the corrugated cardboard sheet S to be processed sheets, is configured.

  These two slitter scorers 12 slit each necessary portion of the corrugated cardboard sheet S along the conveying direction, and each of the corrugated cardboard sheets S is processed with a folding ruled line. That is, each slitter scorer device 12 has two scorer shafts 14 and 16 for processing ruled lines, and a slitter shaft 18 that is positioned downstream of these slitter shafts 18 and slits them. Will be done.

  At this time, in order to make the corrugated cardboard sheet S have a predetermined width dimension, both end portions of the corrugated cardboard sheet S are slit by the outermost cutters 19 of the slitter shafts 18 of the respective slitter scorer devices 12, respectively. Accordingly, trim portions T are generated at both slit ends of the cardboard sheet S.

  Further, as shown in FIGS. 1 and 3, downstream of the two slitter scorer devices 12 in the conveyance direction of the corrugated cardboard sheet S (direction of arrow A) and at both ends of each slitter scorer device 12, Trim inlets 20 for inhaling the trim portion T are respectively installed through support bases 26. That is, there are two slitter scorer devices 12 and two pairs of trim suction ports 20 corresponding to the number of slitter scorer devices 12 are provided. More specifically, one trim suction port 20 is disposed at each end of each slitter scorer device 12.

  Further, a shutter 22 is installed at each of the trim suction ports 20 so as to select whether or not the trim portion T is sucked, and a trim duct 24 is connected to the downstream side of the shutter 22. . The shutter 22 is controlled to be opened and closed by a controller 50 which is a control means. Therefore, the opening and closing of the shutter 22 is controlled by the controller 50 so that the shutter 22 is opened when the trim portion T is inhaled and the shutter 22 is closed when the trim portion T is not inhaled. ing.

  There are two places between the slitter shaft 18 of each slitter scorer device 12 and the trim suction port 20 at both ends of the downstream side of the cardboard sheet S in the conveying direction (arrow A direction) with respect to each slitter scorer device 12. The main part of the trim cut device 36 for cutting the start and end of the trim portion T is attached to the support base 26 via the moving mechanism 30 for moving along the width direction of the slitter scorer device 12. , Each is installed.

  As shown in FIG. 4, these two moving mechanisms 30 include a feed screw 32 that is rotatably installed on the wall surface of the slitter scorer device 12 and meshed with the support base 26, a guide rail 33 that guides the support base 26, and The moving screw 34 is used to rotate the feed screw 32. The moving motor 34 is also connected to the controller 50, and the rotation amount of the moving motor 34 is controlled by the controller 50.

  Accordingly, the feed screw 32 rotates as the moving motor 34 rotates, so that the main part of the support base 26 and the trim cut device 36 mounted on the support base 26 is conveyed in the conveying direction of the cardboard sheet S. It moves along the direction substantially orthogonal to the direction.

  Further, these two trim cutting devices 36 are rotary blades that are formed as rods having a length of about 20 cm for rotating and cutting the start and end of the trim portion T and are used as rotary cutting blades. A cutting bar 38 and a fixing receiving blade 46 installed on the slitter scorer device 12 are provided substantially in parallel with the cutting bar 38 for receiving at the time of cutting.

  That is, the cutting bar 38 is connected to the rotation motor 44 having a size of about 200 W supported by the support base 26 via the reduction gear 40 and the coupling 42 shown in FIGS. 1 to 3. The fixing receiving blade 46 is fixed to the wall surface of the slitter scorer device 12 so as to be orthogonal to the flow direction of the cardboard sheet S. The rotation motor 44 is connected to the controller 50, and the operation is controlled by the controller 50.

  As a result of the above, the controller 50 moves and arranges the trim cut device 36 while controlling it to the trim cut blade position which is an appropriate position by the movement motor 34 of the moving mechanism 30, and then the controller 50 also performs the rotation timing. Is controlled, and the cutting bar 38 is rotated once while being decelerated by the speed reducer 40 by the driving rotation of the rotation motor 44 from the blade standby position 38A, and the trimmed portion of the corrugated cardboard sheet S with the stationary receiving blade 46 The beginning and end of T will be cut off.

  As described above, the moving mechanism 30 moves the trim cutting device 36 while being controlled by the controller 50, so that only the trim portion T is cut from the cardboard sheet S when the trim portion T is cut by the cutting bar 38. As a result, the trim cut device 36 is reliably positioned and controlled.

Next, the operation procedure by the corrugating machine 10 according to the present embodiment will be described below with reference to FIG.
First, in step S1 shown in FIG. 5, one slitter scorer device 12 calculates ruled lines and blade positions from the order data, positions the scorer shafts 14 and 16, and the slitter shaft 18 to be slit, and only processes the ruled lines. The slit C and the trim part T shown in FIG. 6 are cut. Next, in step S <b> 2, the trim cutting device 36 is positioned based on the paper width data and the trim cutting blade position data, and is moved to an optimum position by the moving mechanism 30.

  Thereafter, the process proceeds to step S3, where it is determined whether or not it is time to change the order of the cardboard to be manufactured, and this is necessary until the required quantity of the current order is completed and the time for order change is reached. The judgment is repeated. If it is determined that it is time to switch the order, the process proceeds to step S4, and in this step S4, the slitter shaft 18 as the slitter blade of the other slitter scorer device 12 used for a new order is synchronized with the descent of the slitter shaft 18. By rotating the cutting bar 38 once, only the starting end of the trim portion T is cut from the cardboard sheet S.

  Thereafter, the process proceeds to step S5. In step S5, as in step S3, it is determined whether or not it is time to switch orders. Move on to S6. In step S6, only the end of the trim portion T is cut from the cardboard sheet S by rotating the cutting bar 38 once in synchronization with the rise of the slitter shaft 18 of one slitter scorer device 12. And after completion | finish of step S6, it returns to step S1 and the operation | movement procedure demonstrated above is repeated.

  As described above, the trim cuts TC1 and TC2 at the start and end of the trim portion T are shown in FIG. 6 at the end of the old order and the start of the new order, respectively, when switching by the corrugating machine 10 according to the present embodiment. Will be implemented as follows. In other words, the trimming portion T is cut at the start and end, respectively, when the slitter scorer device 12 is raised and lowered, and the trim control to the trim suction port 20 is facilitated by the synchronized control during trim cut. It becomes easy to inhale and stop the inhalation of T.

  Further, since the trim portion T can be easily sucked into the trim suction port 20, the amount of work for the operator is reduced, and the operator can spend more time for quality control of the cardboard sheet S. Along with this, quality improvement of the cardboard sheet S is also expected.

Next, the operation of the corrugating machine 10 according to the present embodiment will be described below.
According to the corrugating machine 10 of the present embodiment, when the slitter scorer device 12 slits both ends of the corrugated cardboard sheet S transported to the dry end process after the wet end process, the corrugated cardboard is slit. The trim suction port 20 sucks trim portions T generated at both ends of the sheet S. Accordingly, in the dry end process, the corrugated cardboard sheet S is processed into a predetermined size and stacked.

  On the other hand, when the two slitter scorer devices 12 are switched at the time of order switching, the cutting bar 38 of the trim cutting device 36 that cuts the trim portion T by one rotation and the cutting bar 38 of the cardboard sheet S are cut. The trimming portion T is cut at the start end and the end by the fixing receiving blade 46 that is cut while being sandwiched therebetween.

  In the corrugating machine 10 according to the present embodiment, the trim cutting device 36 is installed between the slitter scorer device 12 and the trim suction port 20. At this time, the cutting position by the cutting bar 38 is the trim portion. The controller 50 controls the operation of the moving motor 34 so that the proper start position and end position of T are obtained, so that the cutting position by the cutting bar 38 is positioned and controlled.

  Therefore, according to the corrugating machine 10 of the present embodiment, the trim cut device 36 is positioned on the downstream side in the conveying direction of the corrugated cardboard sheet S with respect to the slitter scorer device 12, so when passing through the slitter scorer device 12. Corrugated cardboard sheet S will not be caught. Further, when the slitter scorer device 12 is switched, the start and end of the trim portion T are reliably cut and separated from the corrugated cardboard sheet S by the trim cut device 36, and the trim suction port 20 of the trim portion T is separated. Inhalation and stopping of inhalation are ensured.

  Furthermore, according to the present embodiment, as the controller 50 controls the operation of the moving motor 34, the cutting position of the cutting bar 38 is positioned and controlled so that the upper side of the size corresponding to the entire width of the apparatus is obtained. Compared with the case of rotating the roll, it becomes possible to cut with a small force. As a result, the power required for cutting can be reduced as the rotating motor 44 having a small capacity can be used. That is, the drive motor of the conventional trim cut device is about 3.7 kW, whereas in the present embodiment, the rotation motor 44 has a small capacity of about 200 W.

  Further, according to the present embodiment, the fixing receiving blade 46 that is fixed in a shape extending in a direction substantially orthogonal to the conveying direction of the corrugated cardboard sheet S exists corresponding to the cutting bar 38, and these cuttings are performed. Since the corrugated sheet S is sandwiched between the bar 38 and the fixing receiving blade 46, the trim portion T can be cut reliably and easily.

  On the other hand, according to the corrugating machine 10 according to the present embodiment, there are two slitter scorer devices 12, and two pairs of trim suction ports 20 are provided corresponding to the number of slitter scorer devices 12. Yes. Then, the cutting bar 38 is rotated in synchronism with the switching operation between the two slitter scorer devices 12, and the trimming device 36 cuts the start and end points of the trim portion T to trim to the trim suction port 20. Part T is inhaled and stopped.

  That is, according to the present embodiment, along with the switching of the slitter scorer device 12 at the time of order switching, the cutting bar 38 of the trim cutting device 36 is rotated in synchronization with this switching operation, so that the trim portion T of the old order is obtained. 6 is cut at the position of the trim cut TC1 shown in FIG. 6 by the trim cut device 36, so that the end of the trim portion T is surely separated from the corrugated cardboard sheet S, and the trim portion T is connected to the trim suction port 20. Inhalation stop is performed reliably.

  Further, for the new order side, the trimming device 36 cuts the starting end of the trim portion T at the position of the trim cut TC2 shown in FIG. 6 so that the trimming portion T is reliably separated from the cardboard sheet S. Thus, the trim portion T is reliably sucked into the trim suction port 20.

The embodiment according to the present invention has been described above, but the present invention is not limited to the embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the trim cut device and the trim suction port moving mechanism are combined, but the trim cut device and the trim suction port may be moved individually. Furthermore, in the above-described embodiment, the slitter device is a slitter scorer device, but the slitter device may be a slitter slitter device instead.

  The present invention can be applied to a corrugating machine for producing a corrugated cardboard product, and can be applied to other industrial machines in which a trim portion that does not become a product is generated.

10 Corrugating machine 12 Slitter scorer device (slitter device)
20 Trim inlet 30 Movement mechanism 36 Trim cutting device 38 Cutting bar (cutting blade, rotary cutting blade)
46 Fixed receiving blade 50 Controller (control means)
S Corrugated cardboard sheet
T trim part

Claims (4)

A slitter device that slits the end of the sheet to be conveyed;
A trim suction port for sucking a trim portion generated at the slit end of the work sheet;
A trim cutting device having a cutting blade for cutting the start and end of the trim part;
Corrugating machine equipped with
A corrugating machine, wherein the trim cutting device is installed between the slitter device and the trim suction port. The cutting blade is a rotary cutting blade that rotates to cut the trim part,
So that the cutting position by the rotary cutting blade is the start position and the end position of the trim part,
The corrugating machine according to claim 1, wherein the control means controls the cutting position of the rotary cutting blade.   The fixing receiving blade for cutting while sandwiching the processed sheet with the rotary cutting blade is fixed to the slitter device so as to extend in a direction substantially orthogonal to the conveying direction of the processed sheet. Corrugated machine as described. There are a plurality of slitter devices, and trim suction ports corresponding to the number of the slitter devices are provided.
The rotary cutting blade is rotated in synchronization with the switching operation between a plurality of slitter devices to cut the start and end of the trim part, and the trim part is sucked into the trim suction port and stopped. The corrugating machine according to claim 2.

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