JP2019063896A - Paper making machine - Google Patents

Abstract

To provide a paper making machine capable of stacking up cutting chips discharged from a finishing part of the paper making machine in a storage part in a non-deviation state.SOLUTION: A paper making machine comprises a finishing part 6 for finishing by cutting as molding paper formed in a preprocess, a carrier device 29 for blowing cutting chips generated by the finishing part 6 as a carrying object 28, a storage part 33 for storing the blown carrying object 28 and a control device for controlling operation of the finishing part 6 and the carrier device 29, and the carrier device 29 is individually independently operably provided with at least a plurality of carrier air supply part, and the control device comprises a blow control part, and the blow control part changes-adjusts a delivery position of the carrying object 28 in the storage part 33 by controlling the operation of the respective carrier air supply parts of the carrier device 29.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a papermaking machine, and more particularly to a technique for discharging cutting waste such as ear paper.

  As a conventional papermaking machine, for example, there is one equipped with a cutting device described in Patent Document 1. This cutting apparatus forms a finishing unit for cutting a banded paper made from used paper pulp liquid obtained by disaggregating used paper into recycled paper of a predetermined size. The cutting device conveys the strip in the longitudinal direction of the web by the transport unit, and cuts the strip in a direction intersecting the transport direction with a cutter extending in the width direction of the strip. Then, when the control device detects that the front end of the strip has been conveyed to the upstream side by a predetermined length from the cutter or the cutter by the detection means, the cutter cuts the strip by the cutter and starts from the front end of the strip The predetermined range is repeatedly cut into smaller dimensions than the size of the recycled paper.

  Then, after the strip paper is cut into cut sheets of a predetermined size in the longitudinal direction by the cutter, the side edge of the cut sheet is cut along the transport direction by the slitter. The scraps produced by slitting with a slitter, so-called ear paper, are guided downward by the guides from the conveying surface of the cut paper.

JP 2011-121125

  In a conventional papermaking machine, the cutting waste of the ear paper generated at the finishing section is accommodated in a storage box. However, since the cutting waste is always discharged in the same direction from the finishing portion, the cutting waste stacked inside the storage box is unevenly distributed in the storage box, and the entire capacity of the storage box can be utilized. In some cases, some cutting waste may spill out of the containing box before the containing box is full of cutting waste.

  The present invention is intended to solve the above-described problems, and it is an object of the present invention to provide a papermaking machine in which cutting wastes discharged from the finishing unit of the papermaking machine can be stacked in an unbiased state in the housing unit.

  In order to solve the above-mentioned subject, the paper machine concerning the present invention conveys a finishing part which finishes by cutting to a forming paper formed at a front-end process, and a conveying device which winds cutting wastes generated in a finishing part as a conveyance object And a control unit for controlling the operation of the finishing unit and the transfer device, and at least a plurality of transfer air supply units are individually provided so as to be independently operable. The control device has an air flow control unit, and the air flow control unit controls the operation of each transfer air supply unit of the transfer device to change and adjust the delivery position of the transfer object in the storage unit.

  In the paper machine according to the present invention, the air flow control unit of the control device adjusts the amount of air flow supplied from each air flow supply portion, and the air flow rate of at least one air supply portion is different from that of the other air supply portions. To control.

  In the paper machine according to the present invention, the air flow control unit of the control device controls operation and stop of each air supply unit, and performs control to stop at least one air supply unit and operate another air supply unit. It is characterized by

  In the papermaking machine according to the present invention, the conveying device forms an air flow for wind-feeding the object to be conveyed by the conveying air supplied by the conveying air supply units, and the air flow control device of the control device supplies the conveying air of each conveying device. It is characterized in that the operation of the unit is controlled to form the distribution pattern of the air flow of the transfer wind, and the distribution pattern of the air flow is changed with time to change and adjust the delivery position of the transfer object.

In the papermaking machine according to the present invention, the transport device has a transport guide portion by which the transport target is blown on the transport surface of the guide plate extending from the plurality of transport wind supply portions toward the storage portion. An air flow is formed on the conveyance surface of the guide plate of the conveyance guide unit by the conveyance air supplied by the supply unit;
The air flow control device of the control device controls the operation of each of the transfer air supply units of the transfer device to form an air flow distribution pattern on the transfer surface of the guide plate, and temporally changes the air flow distribution pattern to be transferred It is characterized by changing and adjusting the delivery position of an object.

  In the paper machine according to the present invention, the air flow control unit of the control device is characterized by changing the distribution pattern of the air flow at a predetermined timing.

  In the paper machine according to the present invention, the transport device is characterized in that the transport surface of the guide plate has a plurality of convex portions and an air passage between the convex portions.

  As described above, according to the present invention, when the object to be conveyed of the cutting waste generated in the finishing portion is blown to the storage portion by air, the operation of each conveyance air supply portion of the conveying device is controlled to convey the object to be transferred By changing and adjusting the delivery position, the position at which the cutting waste of the object to be transported is stacked changes in the storage unit, and the deviation of the cutting waste is equalized in the storage unit. As a result, the cutting waste can be fully accommodated in the accommodating portion, and all the capacity in the accommodating portion can be utilized.

  The transfer device forms an air flow of the transfer air, carries the air flow, and transfers the cutting waste to the storage unit. The distribution position of the object to be conveyed is changed and adjusted by changing the distribution pattern of the air flow with time.

  It is also possible to form an air flow on the transport surface of the guide plate.

  The change of the distribution pattern of the air flow may be performed continuously over time or may be changed at a predetermined timing.

  In addition, by having a plurality of convex portions and an air passage between the convex portions on the conveyance surface of the guide plate, cutting debris on the conveyance surface is supported by the convex portions, and part of the conveyance air is ventilated. It flows between the cutting waste and the conveying surface of the guide plate through the path. For this reason, the resistance which works between the conveyance side of a guide plate and cutting waste reduces, and it can control the consumption energy for wind-feeding cutting waste.

Model part of finishing part of papermaking apparatus in the embodiment of the present invention The schematic diagram which shows the distribution pattern of the air flow of one of the conveyance apparatuses in the embodiment The schematic diagram which shows the distribution pattern of the other airflow of the conveying apparatus in the embodiment Sectional drawing which shows the principal part of the guide plate in the embodiment. Block diagram showing the papermaking apparatus in the embodiment Chart showing the operation pattern of the three conveyance wind supply units in the embodiment A chart showing operation patterns of three conveying wind supply units in another embodiment of the present invention A chart showing operation patterns of two conveying air supply units in another embodiment of the present invention A chart showing operation patterns of two conveying air supply units in another embodiment of the present invention Chart showing the operation pattern of the four conveying wind supply parts in another embodiment of the present invention Chart showing the operation pattern of the four conveying wind supply parts in another embodiment of the present invention Chart showing the operation pattern of the four conveying wind supply parts in another embodiment of the present invention A chart showing operation patterns of five conveying wind supply units in another embodiment of the present invention A chart showing operation patterns of five conveying wind supply units in another embodiment of the present invention

  Hereinafter, embodiments of the present invention will be described based on the drawings.

  FIG. 5 is a block diagram showing a schematic configuration of the papermaking apparatus. The paper making machine 1 of the present embodiment is configured as a used paper recycling apparatus, which is a small paper making apparatus that can be installed, for example, in an office or the like. The paper making machine 1 includes a pulp liquid producing unit 2, a deinking unit 3, a paper making unit 4, a drying unit 5 and a finishing unit 6 inside a paper making machine main body 10, and has a control device 13 for controlling the respective units. .

  The pulp liquid production part 2 performs the process of disaggregating pulp materials to produce a pulp suspension containing pulp. In the present embodiment, a pulp suspension is manufactured using waste paper 11 as a pulp material.

  The deinking unit 3 performs a step of deinking the pulp suspension produced in the pulp liquid producing unit 2. The paper making section 4 performs a process of producing a wet paper by making the deinked pulp suspension supplied from the deinking section 3. The drying unit 5 performs a process of drying the wet paper web formed by the paper making unit 4. The finishing unit 6 performs a process of obtaining a sheet 12 by performing finishing processing such as cutting on the dry paper molded paper dried in the drying unit 5.

  As shown in FIGS. 1 to 4, in the finishing unit 6, a plurality of transport roller pairs 22 are disposed along the transport path of the formed paper 21, and a cutter device is provided between the transport roller pair 22 and the transport roller pair 22. 23, a reject device 24, a calendar device 25 and a slitter device 26 are sequentially arranged from the upstream side to the downstream side in the conveyance direction of the formed paper 21.

  In the cutter device 23, the formed paper 21 of the web sent from the drying unit 5 of the previous process is cut into a predetermined fixed size in the transport direction to form the formed paper 21 of the sheet. The reject device 23 discharges the defective molded paper 21 out of the system. Below the cutter device 23 and the reject device 24, a collection unit 27 for collecting discharged paper is disposed.

  In the calendering device 25, the sheet of formed paper 21 is subjected to calendering, and the formed paper 21 is passed between a pair of upper and lower smooth rolls 25 a, 25 a to improve smoothness, thickness averaging, etc. Make adjustments for

  The slitter 26 cuts and aligns both side edges of the sheet 21 along the conveying direction of the forming paper 21 and adjusts the width of the forming paper 21 to a fixed size in the direction orthogonal to the conveying direction.

  Below the slitter device 26, a conveying device 29 for wind-feeding cutting waste such as ear paper generated by cutting as the conveyance object 28 is disposed. Between the slitter device 26 and the transfer device 29, a guide unit 30 for guiding the cutting waste to the transfer device 29 is disposed.

  The guide unit 30 has an upstream guide plate 31 and a downstream guide plate 32 on the front and rear in the transport direction via the slitter device 26, and the upstream guide plate 31 and the downstream guide plate 32 form a dropping passage 30a for cutting waste. .

  Outside the machine of the paper making machine 1, at a position corresponding to the discharge port 10 a provided on the side of the paper making machine main body 10, a storage unit 33 for storing cutting wastes blown by the transport device 29 is disposed. The transport device 29 has a plurality of, here, three transport air supply units 34, 35, 36 which can be independently operated independently.

  In the present embodiment, each of the conveying air supply units 34, 35, 36 arranges the fan device 40, 41, 42 for each air supply port 37, 38, 39, respectively. The fan devices 40, 41, 42 can control operation and stop and control the air flow independently of the other fan devices 40, 41, 42. Instead of arranging fan units 40, 41, 42 for each air supply opening 37, 38, 39, one fan unit is connected to each air supply opening 37, 38, 39 via a duct and a damper. It is also possible. Further, the present invention can be achieved by installing two or more transport air supply units 34, 35, 36 without being limited to three.

  The lower end 31a of the upstream guide plate 31 of the guide unit 30 covers the upper side of the air inlets 37, 38, 39 in front of the upper side, and the lower end 31a has the transport air blown out from the air outlets 37, 38, 39 upward. It is suppressing the spread. Further, the bottom plate portion 32a of the downstream guide plate 32 extends in the air supply direction, and the bottom plate portion 32a suppresses the diffusion of the carrier air blown out from the discharge port 10 upward.

  The transport device 29 has a transport guide portion 43 disposed between the plurality of transport air supply portions 34, 35, 36 and the outlet 10a. The transport guide portion 43 has a bottom guide plate 44 extending from the transport air supply portions 34, 35, 36 through the discharge port 10a toward the accommodation portion 33 and side guide plates 45 provided on both sides of the bottom guide plate 44. . The bottom guide plate 44 forms the transport surface 46 for wind-feeding the transport object 28, and the side guide plate 45 prevents the transport air and the transport object 28 from deviating from the transport surface 46. The bottom guide plate 44 has a plurality of convex portions 47 formed by embossing or the like on the conveyance surface 46 on which the object to be conveyed is blown, and the convex portions 47 form an air passage 48 therebetween.

  Hereinafter, the operation of the above configuration will be described. The formed paper 21 sent from the drying unit 5 to the finishing unit 6 in the previous process is sequentially conveyed by the plurality of conveyance roller pairs 22 on the conveyance path. Then, the cutter device 23 cuts the formed paper 21 of the web into a predetermined fixed size in the transport direction to form the formed paper 21 of the sheet. The defective molded paper 21 is discharged to the collection unit 27 by the reject device 24. The sheet of paper 21 calendered by the calender device 25 is cut at both sides along the transport direction by the slitter 26 so that the width of the paper 21 is adjusted to a fixed size.

  The cutting waste such as ear paper cut by the slitter 26 passes through the dropping path 30a of the guiding unit 30 as the transport object 28, and is guided by the upstream guiding plate 31 and the downstream guiding plate 32 to be transported by the transport guide portion 43 of the transport device 29. Fall into

  As shown in FIGS. 2, 3 and 6, the air flow control unit configured as a functional circuit of the control device 13 controls the operation of each of the transfer air supply units 34, 35, 36 of the transfer device 29 to store The delivery position of the object to be transported 28 at 33 is changed and adjusted.

  The conveying device 29 forms an air flow of the carrier air on the carrier surface 46 of the bottom guide plate 44 of the carrier guide portion 43 by the carrier air supplied by the carrier air supply units 34, 35, 36, The cutting waste is conveyed to the storage unit 33.

  At this time, as shown in FIG. 4, by having the air passages 48 between the plurality of convex portions 47 and the convex portions 47 on the conveyance surface 46 of the bottom guide plate 44, the cutting waste on the conveyance surface 46 is While being supported by the convex portion 47, a part of the carrier air flows between the cutting waste and the carrier surface 46 of the bottom guide plate 44 through the air passage 48. Therefore, the resistance acting between the conveying surface 46 of the bottom guide plate 44 and the cutting waste is reduced, and energy consumption for wind-feeding the cutting waste can be suppressed.

  The air flow control unit of the control device 13 controls the operation of the transfer air supply units 34, 35, 36 of the transfer device 13 to form an air flow distribution pattern on the transfer surface 46 of the bottom guide plate 44. Then, the distribution pattern of the air flow is temporally changed to change and adjust the delivery position of the object to be conveyed.

  For example, as shown in FIG. 2, in one distribution pattern A of the air flow, the air flow of the transfer air flows through the central portion of the transfer surface 46 of the bottom guide plate 44 and the air flow of the transfer air is not on both sides of the transfer surface 46. In this air flow distribution pattern A, the object to be conveyed 28 dropped to the conveyance surface 46 of the bottom guide plate 44 is pushed to both sides of the conveyance surface 46, moves along the side guide plate 45, and is discharged from the conveyance guide portion 43. It is discharged into the storage 33 through the outlet 10a. Then, the cutting wastes of the object to be transferred 28 that falls into the storage unit 33 are stacked on both sides of the storage unit 33.

  As shown in FIG. 6 as the operation pattern 1, the air flow control unit of the control device 13 controls the operation and stop of the air supply units 34, 35, 36. Here, the central air supply unit 35 is operated. This is realized by performing control to stop the other air supply units 34 and 36.

  In another air flow distribution pattern B, as shown in FIG. 3, there is no air flow of the transfer air at the center of the transfer surface 46 of the bottom guide plate 44, and there is an air flow of transfer air on both sides of the transfer surface 46. In the distribution pattern B of the air flow, the object to be conveyed 28 dropped to the conveyance surface 46 of the bottom guide plate 44 is pressed against the center of the conveyance surface 46 to move, and from the conveyance guide portion 43 through the discharge port 10 a Discharged into Then, the cutting wastes of the object to be transferred 28 falling into the housing portion 33 are stacked at the center of the housing portion 33.

  As shown in FIG. 6 as operation pattern 2, the air flow control unit of the control device 13 controls the operation and stop of the air supply units 34, 35, 36, and here, the center air supply unit 35 is stopped. This is realized by performing control to operate the other air supply units 34 and 36.

  Then, when the air flow control unit of the control device 13 repeats the operation patterns 1 and 2, the air flow distribution patterns A and B are alternately formed on the conveyance surface 46 of the bottom guide plate 44. For this reason, the delivery position of the conveyance object 28 in the accommodation unit 33 is alternately changed, the position where the cutting waste of the conveyance object 28 is stacked in the accommodation unit 33 is changed, and the deviation of the cutting waste in the accommodation unit 33 is Be leveled out. As a result, the cutting waste can be fully accommodated inside the accommodation portion 33, and all of the capacity of the accommodation portion 33 can be utilized.

  The switching timing for changing temporally the distribution pattern A or B of the air flow formed on the transport surface 46 of the transport guide portion 43 may be timing with a predetermined time interval fixed, and the time interval is fixed. The time interval may be changed, or may be set freely by manual operation.

  Further, the switching timing may switch the air flow distribution pattern A or B for each set number of sheets, using the number of sheets 12 subjected to the finishing process as an index. Alternatively, the air flow distribution pattern A or B may be switched every set time using the operation time of the finishing unit 6 as an index. Alternatively, the air flow distribution pattern A or B may be switched for each amount set using the amount of cutting waste stored in the storage unit 33 as an index.

  In addition, blades that swing in the left-right direction may be provided at the air supply openings 37, 38, 39 of the conveyance air supply units 34, 35, 36, and so-called swinging may be performed. The distribution pattern of the air flow formed on top may be changed continuously over time.

  Furthermore, as shown in FIG. 7, three driving patterns 1, 2, 3 are set. That is, in the operation pattern 1, the left air supply unit 34 is operated to stop the other air supply units 35 and 36. The delivery position of the object to be transported 28 in the storage unit 33, that is, the position where the cutting waste is stacked is from the center to the right.

  In the operation pattern 2, the right air supply part 36 is operated to stop the other air supply parts 34 and 35. The delivery position of the object to be transported 28 in the storage unit 33, that is, the position where the cutting waste is stacked is on the left side from the center.

  In the operation pattern 3, the central air supply part 35 is operated to stop the other air supply parts 34 and 36. The delivery position of the object to be transported 28 in the storage unit 33, that is, the position where the cutting waste is stacked is on the right side and the left side.

  Then, the air flow control unit of the control device 13 repeats the operation patterns 1, 2 and 3, whereby the delivery position of the object to be transferred 28 in the storage unit 33 is alternately changed, and the object to be transferred 28 is cut in the storage unit 33. The position at which the wastes are stacked changes, and the deviation of the cutting wastes is equalized inside the storage unit 33.

Further, the driving patterns 1, 2, and 3 may be sequentially switched at predetermined time intervals, or the driving patterns 1, 2, and 3 may be switched in random order at predetermined time intervals.
(Two transport wind supply units)
FIG. 8 shows an operation pattern in the case of providing two transport air supply units (left side and right side). That is, in the operation pattern 1, the left air supply unit is operated to stop the right air supply unit. The position at which the cutting waste is stacked in the storage unit 33 is from the center to the right.

  In the operation pattern 2, the air supply unit on the right side is operated to stop the air supply unit on the left side. The position at which the cutting waste is stacked in the storage unit 33 is from the center to the left.

FIG. 9 shows an operation in which the operation pattern 3 is added. In the operation pattern 3, both the air supply units are operated. The position at which the cutting waste is stacked in the storage unit 33 is at the center. Then, the operation patterns 1, 2 and 3 are sequentially repeated.
(4 transport air supply units)
FIG. 10 shows an operation pattern in the case of providing four transport air supply units (left, center left, center right, right). That is, in the operation pattern 1, the left and center right air supply units are operated to stop the center left and right air supply units. The position at which the cutting waste is stacked in the storage unit 33 is from the center to the right.

  In the operation pattern 2, the left and center right air supply units are stopped and the center left and right air supply units are operated. The position at which the cutting waste is stacked in the storage unit 33 is from the center to the left. The air flow control unit of the control device 13 repeats the operation patterns 1 and 2.

  Moreover, the driving | running pattern shown in FIG. 11 is also possible. That is, in the operation pattern 1, the center left and center right air supply units are operated to stop the left and right air supply units. The positions at which the cutting wastes are stacked in the accommodation portion 33 are on the left side and the right side.

  In the operation pattern 2, the center left and center right air supply units are stopped and the left and right air supply units are operated. The position at which the cutting waste is stacked in the storage unit 33 is at the center. The air flow control unit of the control device 13 repeats the operation patterns 1 and 2.

  In FIG. 12, in the operation pattern 1, the left air supply unit is operated to stop the other air supply units. The position at which the cutting waste is stacked in the storage unit 33 is from the center to the right.

  In operation pattern 2, the right air supply unit is operated to stop the other air supply units. The position at which the cutting waste is stacked in the storage unit 33 is from the center to the left.

In the operation pattern 3, the center left and the center right blower supply section are operated. Stop the left and right blower supply. The positions at which the cutting wastes are stacked in the accommodation portion 33 are on the left side and the right side. The air flow control unit of the control device 13 repeats the operation patterns 1, 2 and 3 sequentially.
(5 transport air supply units)
FIG. 13 shows an operation pattern in the case of providing five transport air supply units (left, center left, center, center right, right). That is, in the operation pattern 1, the left and right air supply units are operated to stop the center left, center, and center right air supply units. The position at which the cutting waste is stacked in the storage unit 33 is at the center.

  In the operation pattern 2, the right and left air supply units are stopped, and the center left, center, and center right air supply units are operated. The positions at which the cutting wastes are stacked in the accommodation portion 33 are on the left side and the right side. The air flow control unit of the control device 13 repeats the operation patterns 1 and 2.

  Moreover, the driving | running pattern shown in FIG. 14 is also possible. That is, in the operation pattern 1, the left and center air supply units are operated to stop the center left, center right, and right air supply units. The positions at which the cutting wastes are stacked in the storage unit 33 are the center and the right side.

  In operation pattern 2, the central and right air supply units are operated to stop the left, central left, and central right air supply units. The positions at which the cutting wastes are stacked in the accommodation portion 33 are on the left side and the center.

  In operation pattern 3, the center left and center right air supply units are operated to stop the left, center, and right side air supply units. The position at which the cutting waste is stacked in the storage unit 33 is at the center. The air flow control unit of the control device 13 repeats the operation patterns 1, 2, and 3.

  In the present embodiment, the present invention has been described by exemplifying a wet waste paper recycling apparatus for making paper from a pulp suspension, but the present invention is applicable not only to the waste paper recycling apparatus but also to a dry papermaking machine is there. In a dry papermaking machine, for example, in a fiberizing process, raw materials such as waste paper are disintegrated into fibers by mechanical means such as grinding to form fibers. Next, in the forming step, the fiber material is mixed with a resin material as a binder to form a mixed fiber, and the mixed fiber is deposited to a predetermined width and a predetermined thickness to form a belt-like deposit. The strip deposits are then heated to bind the fibers with a binder to form a shaped paper. Next, the formed paper is cut into a predetermined size in a finishing unit to finish the paper. The invention is applicable to this finisher.

  The transport guide portion 43 of the present embodiment is not necessarily required. It is also possible to wind the object to be transported 28 such as cutting waste that falls freely without being supported by the transport guide portion 43 by the transport air from the transport air supply unit. In addition, the storage unit 33 can be provided inside the papermaking machine main body 10.

  Further, the recovery unit 27 of the present embodiment is not necessarily required. The front and back cutting wastes generated when the unnecessary portion at the front end or the rear end of the formed paper 21 in the conveying direction is cut by the cutter device 23 and the formed paper 21 of defective products discharged by the reject device 24 are accommodated in the storage portion 33 Is also possible. In this case, the front and rear cutting wastes and the forming paper 21 are directed toward the containing portion 33 by the conveying air from the conveying air supplying unit or the separately provided conveying air supplying means, similarly to the cutting wastes generated by the slitter 26. Will be sent.

DESCRIPTION OF SYMBOLS 1 Paper machine 2 Pulp liquid production part 3 Deinking part 4 Paper making part 5 Drying part 6 Finishing part 10 Paper machine main body 10a Ejection port 11 Waste paper 12 Paper 13 Control device 21 Forming paper 22 Conveying roller pair 23 Cutter device 24 Reject device 25 Calendar Device 25a, 25a Smooth roll 26 Slitter device 27 Collection part 28 Object to be transported 29 Conveying device 30 Guide part 30a Drop-off path 31 Upstream guide plate 31a Lower end part 32 Downstream guide plate 32a Bottom plate part 33 Housing part 34, 35, 36 Conveying wind Supply part 37, 38, 39 Air supply port 40, 41, 42 Fan device 43 Conveyance guide part 44 Bottom guide plate 45 Side guide plate 46 Conveyance surface 47 Convex part 48 Air passage

Claims (7)

A finishing unit that performs finishing on the formed paper formed in the previous step by cutting, a conveying device that winds the cutting waste generated in the finishing unit as a conveyance object, and a housing unit that holds the conveyance object to be winded; It has a control unit that controls the operation of the finishing unit and the transport device,
The transport device is provided with at least a plurality of transport wind supply units so as to be independently operable,
A control device includes an air flow control device, and the air flow control device controls the operation of each of the transfer air supply units of the transfer device to change and adjust the delivery position of the transfer object in the storage unit.   The air flow control device of the control device is characterized in that the air flow rate supplied from each air flow supply portion is adjusted, and the air flow rate of at least one air flow supply portion is controlled to be different from that of the other air flow supply portions. A papermaking machine according to claim 1.   The blower control device of the control device controls operation and stop of each blower supply unit, and performs control to stop at least one blower supply unit and operate another blower supply unit. Paper machine as described. The conveying device forms an air flow for wind-feeding the object to be conveyed by the conveyance air supplied by each of the conveyance air supply units,
The air flow control device of the control device controls the operation of each of the transfer air supply units of the transfer device to form an air flow distribution pattern of the transfer air, changes the air flow distribution pattern with time, and delivers the transfer object The paper machine according to any one of claims 1 to 3, wherein the change is adjusted. The transport apparatus has a transport guide unit by which the transport target is blown on the transport surface of the guide plate extending from the plurality of transport air supply units toward the storage unit, and the transport air supplied by each transport air supply unit An air flow is formed on the transport surface of the guide plate of the transport guide portion,
The air flow control device of the control device controls the operation of each of the transfer air supply units of the transfer device to form an air flow distribution pattern on the transfer surface of the guide plate, and temporally changes the air flow distribution pattern to be transferred The papermaking machine according to any one of claims 1 to 3, wherein the delivery position of the object is changed and adjusted.   The papermaking machine according to claim 4 or 5, wherein the air flow control device of the control device changes the distribution pattern of the air flow at a predetermined timing.   6. The papermaking machine according to claim 5, wherein the conveying device has a plurality of convex portions and an air passage between the convex portions on the conveying surface of the guide plate.

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