JPH0834081A - Corrugated machine - Google Patents

Abstract

(57) [Summary] [Objective] To manufacture a corrugated cardboard sheet that does not cause buckling deformation or S-shaped time-dependent deformation even when stacked in the form of divided plate sheets. [Structure] The single-sided corrugated board sheet 4 and the front liner 1 are heat-bonded to continuously form a belt-shaped double-sided corrugated board sheet 5,
This corrugated cardboard sheet 5 is divided into plate-like sheets and stacked so as not to be deformed. The double-sided corrugated sheet 5 is sandwiched and carried out over the entire width of the upper conveyor j ′ and the lower conveyor k. , Water shower device capable of applying water or steam, steam shower device, etc. 6a, 6
The corrugated board sheet moisturizing means is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugating machine which is a facility for manufacturing corrugated board sheets.

[0002]

2. Description of the Related Art FIG. 20 is a side view schematically showing a conventional general corrugating machine. Corrugated machine
Main components are a single facer A _1, A ₂ , a double facer B, a dry end C consisting of a slitter scorer, a cutoff stacker, etc., and a loading section D. The backing liner base papers b _{1 and} b that are separately introduced after the core base papers a _{1 and} a ₂ are introduced into the single facers A _{1 and} A ₂ and formed into a wavy shape
_It is bonded to ₂ to form a single-sided cardboard sheet. The core raw papers a _{1 and} a ₂ are heated by the preheaters d _{1 and} d ₂ , and the back liner raw papers b _{1 and} b ₂ are heated by the preheaters c _{1 and} c ₂ , and the heat amounts for corrugation and starch paste solidification are obtained. Is given. The pattern corrugated cardboard sheet manufactured here is heated together with the front liner base paper f by the preheater e, and after passing through the gluing device g,
Introduced on Double Facer B.

As shown in FIG. 18 showing a more detailed side view, the double facer B is a hot plate group h arranged in the lower part, an air pressurizing device for applying pressure from the upper part to the hot plate group h, a weight roll, or the like. An upper conveyor j that sandwiches and conveys a pressure device i, a single-faced cardboard sheet 4 which is an adhesive sheet of the back liner 2 and the corrugated core 3, and a double-faced cardboard sheet 5 which is an adhesive sheet of the front liner 1. And a lower conveyor k and the like. In addition, the single-faced corrugated sheet 4 introduced into the hot plate group h of the double facer B
The front liner 1 and the front liner 1 are placed in a state in which they are joined to each other through the glue attached to the step top portion of the core 3, and the front liner receives heat while traveling while sliding in contact with the hot plate group h. The heat of 1 solidifies the glue to bond it. The bonded double-faced corrugated cardboard sheet 5 is conveyed by the upper and lower conveyors j and k and carried out to the subsequent process. Double-sided corrugated cardboard sheet 5 delivered
Is slitted and ruled by the slitter scorer 1 placed on the dry end C, cut into a split plate shape by the cutoff m, and conveyed by the stacker n.
The sheets are stacked in the loading section D and discharged to the outside of the machine. The stacker n and the stacking section D are shown in more detail in the side view of FIG.

[0004]

As described above, in the conventional corrugating machine, since the starch glue as the adhesive is solidified to develop the adhesive force, the back liner, the center core, the front liner,
Preheaters for heating the one-sided corrugated board sheet 4 which is an adhesive sheet between the back liner and the core are arranged at various places, and a long hot plate group h for bonding the one-sided corrugated board sheet 4 and the front liner 1 is provided. The front liner 1 side and the back liner 2 side are arranged and heated. As a result of being heated almost in the first half of the corrugator, the sheets continue to be kept warm even in the second half of the corrugator, and even when reaching the stacking part, the sheets are piled up at a considerably high temperature and low water content, that is, in a dry state. FIG. 16 shows the moisture content of the front liner and the back liner which are manufactured by the corrugated machine and are loaded via the stacker.
An example of data obtained by measuring a change in water content with time when left to stand in an atmosphere after that is shown. In FIG. 16, the water content of the front liner and the back liner on the verge of loading corresponding to the elapsed time of 0 minutes is 3 to 4% (X _{1 in the} figure) in the front liner and 4 to 5% (X _{2 in the} figure) in the back liner. ), Which is considerably lower than the moisture content (XX in the figure) of the sheet under normal temperature and normal humidity.

After that, the front liner and the back liner both go toward stabilization under atmospheric conditions, absorb water as the temperature drops, and approach a stable steady-state water content under normal temperature and normal humidity (eg, 20 ° C., 60% RH). I will do it. By the way, since the sheet manufactured by such a conventional corrugator has a considerably low moisture content as described above, that is, the sheet is in a dry state, when the sheet in the form of a divided plate is stacked in a dry state, immediately after the sheet is stacked. Even if each of them is a flat plate-shaped sheet, the paper tries to stretch due to the subsequent stabilization process to the atmosphere, that is, the process from the dry state to the absorption of water, but the free deformation is restrained by the stacking. Therefore, as shown in the schematic view of the loading state in FIG. 17, there is a drawback that buckling deformation occurs and so-called S-shaped deformation occurs over time. The present invention provides a corrugating machine capable of preventing paper from elongating over time, buckling deformation of a sheet, and suppressing S-shaped deformation over time.
The previous term is to solve the conventional problems.

[0006]

Therefore, the present invention provides a corrugating machine for producing a double-faced corrugated board sheet.
The production line is equipped with a moistening means for bringing the moisture content of the front liner and / or back liner of the cardboard sheet close to the steady moisture content under normal temperature and normal humidity, and carrying out the double-faced cardboard sheet. At least one of the sandwich-shaped upper and lower conveyors, a water shower device that can be applied over the entire width, is provided with a conveyor wetting means such as a steam shower device or a watering roll, and at least one of the front and back liners of the double-faced corrugated cardboard sheet. In addition, a wetting means such as a water shower device, a steam shower device or a watering roll that can be applied over the entire width is provided in the gap between the hot plate group and the transfer conveyor and / or the gap between the devices in the subsequent process. And these are the means for solving the problems.

Further, according to the present invention, a moisturizing means by a humidifying room for covering the front liner side and / or the back liner side of the traveling corrugated cardboard sheet is provided in a partial area or the whole area of the production line after the hot plate group. A water shower device that discharges water, steam, or the like toward at least one of the front and back liners of the divided plate-like sheet that is in the process of being discharged to the stacking unit. Alternatively, it is provided with a moisturizing means such as a steam shower device, and is further provided with a presetting device for each coating amount set value for the front liner side and / or the back liner side of each moistening means, and further for production control. It is equipped with the preset device which operates according to the preset command value based on the paper physical property data from the device and / or the operation command signal of each part. It is an means for solving the problems.

The present invention also provides a moisture measuring sensor on the front liner and / or back liner side, which is arranged in the space between the devices after the hot plate group, and the front liner and / or back liner side based on the measurement value of the sensor. The wetting means comprises a controller for individually controlling the amount of water applied, and the water content measuring sensor has a traverse mechanism so as to measure the water distribution of the sheet in the paper width direction, or a plurality of them in the paper width direction. It is configured with individual sensor arrangements, and further comprises a plurality of arrays of the moistening means for enabling partial control of the moistening means in the paper width direction based on the moisture distribution measurement signal in the paper width direction, and this individual control device. Yes, the hot plate so that the moisture content of the front liner and / or the back liner on the verge of stacking the divided plate-like sheets approaches the steady moisture content under normal temperature and normal humidity. Each of the front liner base paper, the back liner base paper, and the single-sided corrugated board before being introduced has a moistening means, which is connected to the preset device or the moisture measuring sensor and control device to receive a command. This is the means for solving the problems.

[0009]

In the present invention, when the divided plate-like sheets manufactured by the corrugator and conveyed are stacked, moisture is forced to approach a steady moisture content of the sheets at room temperature and normal humidity. Therefore, there is little or no change in the water content during the stabilization process in the atmosphere after loading.
Therefore, the paper does not elongate with time, the buckling deformation of the sheet does not occur, and the S-shaped time-dependent deformation can be suppressed.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments of the drawings. FIGS. 1 to 15 show the embodiments of the present invention. 1 to 4
Shows a side view of one embodiment of the conveyors j, k of the double facer B and the moistening means for the belt, both of which show means for spraying or applying water to the belt. It shows an indirect sheet wetting means for transferring moisture to the liner or back liner. Further, FIG. 1 is an example in which a spray device 6a for spraying water or steam over the entire width direction is provided toward the belt portion of the lower conveyor k for transportation arranged behind the hot plate group h of the double facer B, FIG. 2 shows an example in which a spray device 6b for spraying water or steam is provided also on the belt portion of the upper conveyor j over the entire width direction like the lower conveyor k.

The front liner 1 side of the double-faced corrugated board sheet 5 is contact-heat-transferred from the hot plate group h and receives a large amount of heat, so that the temperature becomes higher than that of the back liner 2 side, and there is a tendency to be dehydrated.
Further, in order to bring the moisture content in the finished state closer to the moisture content in the steady state, it is proposed to provide a means for imparting moisture to at least the front liner 1 side, and in some cases, a moistening means to the back liner 2 side. Even if omitted as in the embodiment of FIG. 1, a sufficient effect may be obtained. In the example of FIGS. 1 and 2, the spray devices 6a and 6b for spraying moisture are arranged on the belt j and / or the belt k, so that the belts j and k having moisture absorbed over the entire width are accompanied by rotation. Moisture is transferred to the double-faced corrugated sheet 5 at the contact surface with the back liner 2 and / or the front liner 1, and the liners 2, 1
Absorbs water to increase the water content, and the water content in the finished state approaches a steady amount under normal temperature and normal humidity.

FIG. 3 shows a method of applying water to the conveyor belts j and k by means of a watering roll. In the figure, 7a and 7b are watering rolls for holding a water film on the outer peripheral surface of the rolls, 8a and 8b are doctor rolls for contacting the watering rolls 7a and 7b to adjust the water film thickness, and 9a and 9b.
Is water stored on a container or roll. The watering rolls 7a and 7b rotate in synchronization with the running of the belts j and k, and the water film on the outer peripheral surface adjusted by the doctor rolls 8a and 8b is transferred at the contact portion with the belts j and k to the belts. Make it wet. In the embodiment of FIG. 3 as well, water is transferred at the belt contacting surfaces of the back liner 2 and the front liner 1, and the liners 2 and 1 absorb water to raise the water content, as in the previous embodiment. Also in this embodiment, it may be possible to omit the watering roll device on the side of the upper belt j for the reason described above.

Next, in the embodiment shown in FIG. 4, the upper conveyor j in the conventional general double facer is fed by one belt while covering the hot plate group h and the plate conveyor k. A moisturizing means is provided as a conveyor j'which conveys just above the lower conveyor k after dividing the upper conveyor. Although FIG. 4 shows an example in which the spray device 6b is provided, other means such as the watering roll 7b may be provided. It goes without saying that, with the configuration of this embodiment, a small-turn conveyor is provided, so that the effect of adding moisture to the back liner 2 is increased. Although the means for indirectly giving moisture to the liner by the belt has been exemplified above, these methods provide a simple method in which an existing device can be used without additionally installing a new belt.

Next, the embodiments shown in FIGS. 5 to 10 exemplify a wetting means for directly applying water to the corrugated cardboard sheet 5 carried out through the hot plate group h. First of all,
In FIG. 6, a water spray device 6c is provided in the gap between the hot plate group h and the lower conveyor k to wet the front liner 1 side.
Is a water spray device 6d, 6 for wetting the front liner 1 and the back liner 2 on the downstream side of the unloading section from the upper and lower conveyors j, k.
e is provided and the front liner 1 side and the back liner 2 side are moistened by the respective devices 6d and 6e. In FIG. 7, the watering roll device 10 is provided in the gap between the hot plate group h and the lower conveyor k. The method of deploying and wetting the front liner 1 side is shown. Further, in FIG. 8, the watering roll devices 10b and 10c are provided on the downstream side of the unloading section from the upper and lower conveyors j and k, and the front liner 1 is provided.
FIG. 9 shows a method of moistening each of the side and the back liner 2 side. In FIG. A water spray device 6f, 6g is provided on the back liner 2 side to wet both liners.
The water sprays 6h, 6i, 6j, 6k, 6n and the like are appropriately and selectively provided to the space between the devices from the stacker to the stacker n or to the conveyor belt to wet the corrugated board sheet 5.

By the way, in the spray device 6c shown in FIG. 5 which uses water or steam as a supply source, water or steam is discharged toward the front liner 1 of the single-faced corrugated cardboard sheet 5 drawn out from the hot plate group h and directly. Moisture the surface liner 1 that has been dried to moisten it. Further, in the method shown in FIG. 6, at the exit of the double facer B, the dried cardboard sheet 5
Sprayer devices 6d, 6 on the front liner 1 side and the back liner 2 side of
Water or steam is discharged from e, and moisture is directly added to moisten it. The watering roll devices 10a, 10b, and 10c shown in FIGS. 7 and 8 are the same devices as those shown in FIG. 3, and are composed of a watering roll, a doctor roll, and pooled water. It has a function of directly adding moisture to the front liner 1 or the back liner 2 for moistening.

Further, from the spraying devices 6f and 6g shown in FIG. 9, water or steam is supplied to the front liner 1 of the dividing plate sheet 5 '.
Side and the back liner 2 side for direct moistening, and is an example of processing immediately before loading. In this embodiment, the spraying devices 6f and 6g are eliminated, or the spraying device 6m is used to discharge water or steam toward the uppermost sheet of the stacked sheet 5'with another spraying device 6m. You can also According to this embodiment, the next sheet is stacked in a state where the sprayed water is adhered to the back liner 2 and is not yet absorbed. Therefore, the back liner 2 and the front liner 1 that contacts the back liner 2 are stacked.
Since the water is shared by and and the water is immediately absorbed by both, the front and back liners can be moistened.

Next, in FIG. 11, a humidification room 1 for covering the front liner 1 side and / or the back liner 2 side of the corrugated cardboard sheet in a partial area or the whole area of the manufacturing line from the hot plate group h to the loading section is shown.
An example in which 1a and 11b are provided will be shown. Humidification room 11
a and 11b constitute enclosures such as a vinyl house for covering the front liner side and the back liner side, respectively, and the ducts 1 for discharging humid air are provided in the rooms 11a and 11b.
Higher humidity air is discharged from 2a and 12b, so that the rooms 13a and 13b are filled with moist air.
According to the embodiment shown in FIG. 11, the corrugated cardboard sheet 5 during running absorbs the humid air in the rooms 13a and 13b to be moistened.

FIG. 12 shows a method for instructing or controlling the amount of water discharged or the amount of application of the moisturizing means according to the various embodiments described above based on the measured value of the water content of the corrugated cardboard sheet during running or by setting by a presetting device. . Reference numerals 14a and 14b denote moisture measuring sensors for detecting moisture on the front liner 1 side and the back liner 2 side during traveling, and various commercially available products such as infrared type, microwave type, and electric resistance type can be applied to this. 6p and 6q are moisturizing means shown by a water spray device as an example, and are arranged on the front liner side and the back liner side, respectively. Reference numerals 16a and 16b are adjusting devices such as flow rate control valves for the supply liquid, which are connected to the spray devices 6p and 6q.

Reference numeral 17 denotes a controller that receives signals from the moisture measuring sensors 14a and 14b and gives a command to the adjusting devices 16a and 16b, and 18 denotes paper physical property data from a production control device 19 or a centralized control device and / or an operation command of each part. It is a presetting device that gives a preset command value to the adjusting devices 16a and 16b based on the signal. Basically, the controller 17 has an insufficient amount of water in order to make the moisture content of the front and back liners on the verge of being loaded constantly stable on the basis of the moisture values of the front and back liners detected by the moisture measurement sensors 14a and 14b. Is calculated, and the liquid amount adjusting devices 16a and 16b of the wetting means on the front and back liner sides are controlled. Normally, the water content on the front liner 1 side that is heated by contacting the hot plate group h is low, so that a large amount of water is applied to the front liner 1 side.

In this embodiment, even if the sensor 14b on the back liner 2 side and the spray device 6q are eliminated and a control system is configured only on the front liner 1 side, a temporary effect can be expected. Also, without using the moisture measuring sensors 14a, 14b,
If physical properties based on paper quality are known in advance, and the operating conditions of each part of the corrugating machine are monitored and trends in the front liner or back liner moisture on the line can be predicted, these data and monitor information are centrally managed. Alternatively, the production control device 19 may instruct the preset device 18 of each set value to perform centralized control of the adjusting devices 16a and 16b.

FIG. 13 shows an embodiment for achieving the object of the present invention after making the water distribution in the sheet width direction constant.
(A) shows the arrangement of the moisture measuring sensor, and (b) shows the arrangement of the wetting means and the control device, both of which are shown in a front view including a cross section. In FIG. 13A, 14c, 1
4d is a bar 20 fixed to the frame 21 across the machine width in a predetermined machine space in the corrugated machine.
The moisture measurement sensors are mounted laterally movable along c and 20d, and are arranged so that the moisture content on the back liner side and the moisture content on the front liner side can be measured respectively. Further, as indicated by arrows in the figure, 14c and 14d continuously detect the water distribution in the paper width direction of the double-faced corrugated board sheet 5 which is continuously reciprocating and running. In addition,
In this embodiment, the sensor is traversed to measure the water distribution in the paper width direction, but it is also possible to arrange a plurality of sensors to detect spotwise in the paper width direction.

Further, in FIG. 13B, 6c _1, 6c ₂
· · · · 6c _N is directed to the back liner side of the double-faced cardboard sheet 5, a water discharge device for imparting moisture to the charge region of the paper width _{direction, 6d 1, 6d 2 ···· 6d} N Table A water discharge device for applying water to each holding area in the paper width direction in the same manner toward the liner 1 side. All of them are mounted on the bar fixed to the frame 21 at substantially equal intervals, and the respective discharge devices 6c _1, 6c _2, ...
6c _N, and 6d _1, 6d ₂ piping system · · · · 6d _N is
Discharge liquid amount adjusting device C _1, C _2, ...
C _N, and d _1, d _2, on which are respectively connected to the · · · · d _N,
It is connected to a pump device P which is a liquid supply source. Further, the measurement signals of the sensors 14c and 14d are connected to the controller 22 as electric signals, and based on the arithmetic processing in the controller 22, the discharge liquid amount adjusting devices C _1, C _2, ... C _N ,
, And individual command signals are transmitted to d _1, d _2, ..., D _N.

FIG. 14 shows an example of arithmetic processing in the controller 22 here. FIG. 14A is an example of a pattern of the moisture value in the paper width direction measured by the sensor 14c or 14d. In addition, FIG. 14B shows the paper width positions d _1, d _2, ... D _N required to achieve the moisture content target value with respect to the moisture value measured in FIG. Of the supplemental water addition amount Δw _1, Δw _2, ... Δw _N. In addition,
The moisture content target value is a state of moisture necessary for the discharging unit in order to bring the paper to the steady state moisture in the stacking unit. According to the present embodiment, the unevenness of water content in the paper width direction or the unevenness / unevenness of water content in the paper width direction due to a malfunction or operation in each mechanical system is made uniform, and deformation over time after loading is also prevented. Will be things.

FIG. 15 shows an embodiment in which the object of the present invention can be achieved by wetting the front portion of the hot plate group. 14r and 14s are the front liner 1 of the corrugated cardboard sheet 5.
Side, moisture measuring sensor for detecting moisture content on the back liner 2 side,
6r and 6s are water discharge devices for wetting the front liner side and the back liner side, respectively, 23 is a controller, 16r and 1
6s is a liquid amount adjusting device, and 24 is a centralized control device. Then, the controller 23 calculates the difference from the target moisture value as shown in FIG. 15 based on the detection values of the sensors 14r and 14s, and commands the respective liquid amount adjusting devices 16r and 16s as the amount of water to be added. Give out. The moisture target value is a state of moisture required in the ejection unit in order to bring the paper into a steady state moisture in the stacking unit.

Since the steady-state water content of paper usually varies depending on the paper quality, paper physical property data should be stored in advance.
When it is possible to individually set the moisture target value according to the paper quality during traveling, it is preferable to connect the central control device 24 and transmit data to the controller 23. Further, as shown in the embodiment of FIG. 12, the sensors 14r and 14s are eliminated, and the water discharge device 6r and / or 6 is preset by presetting.
It is also possible to adjust the liquid amount of s. In the present embodiment, an example is shown in which the water discharge devices 6s and 6r are provided at the sheet introducing portion to the double facer B. It is also possible to take

[0026]

As described above in detail, according to the present invention, the moisture content of the plate-like sheet at the time of being manufactured and loaded by the corrugated machine is substantially the same as the steady moisture content in the atmosphere. Since it can be manufactured as described above, buckling deformation and S-shaped temporal deformation do not occur in the loaded state, and the paper does not elongate with time in the subsequent sheet storage, and therefore the sheet deforms. Therefore, the quality of the manufactured corrugated cardboard sheet can be significantly improved.

[Brief description of drawings]

FIG. 1 is a side sectional view of a corrugating machine showing a first embodiment of the present invention.

FIG. 2 is a side sectional view of a corrugating machine showing a second embodiment of the present invention.

FIG. 3 is a side sectional view of a corrugating machine showing a third embodiment of the present invention.

FIG. 4 is a side sectional view of a corrugating machine showing a fourth embodiment of the present invention.

FIG. 5 is a side sectional view of a corrugating machine showing a fifth embodiment of the present invention.

FIG. 6 is a side sectional view of a corrugating machine showing a sixth embodiment of the present invention.

FIG. 7 is a side sectional view of a corrugating machine showing a seventh embodiment of the present invention.

FIG. 8 is a side sectional view of a corrugating machine showing an eighth embodiment of the present invention.

FIG. 9 is a side sectional view of a corrugated machine showing a ninth embodiment of the present invention.

FIG. 10 is a side sectional view of a corrugating machine showing a tenth embodiment of the present invention.

FIG. 11 is a side sectional view of a corrugated machine showing an eleventh embodiment of the present invention.

FIG. 12 is a system diagram of a corrugating machine showing a twelfth embodiment of the present invention.

FIG. 13 is a system diagram of a corrugating machine showing a thirteenth embodiment of the present invention.

FIG. 14 is an explanatory diagram of a corrugating machine showing a fourteenth embodiment of the present invention.

FIG. 15 is a system diagram of a corrugating machine showing a fifteenth embodiment of the present invention.

FIG. 16 is an explanatory view showing water content change measurement data of a sheet manufactured by a conventional corrugating machine.

FIG. 17 is a schematic view of a sheet manufactured by a conventional corrugating machine.

FIG. 18 is a side sectional view showing a conventional double facer.

FIG. 19 is a side view showing a conventional stacker and a stacking unit.

FIG. 20 is a side view showing a conventional corrugating machine.

FIG. 21 is a side view of a conventional corrugating machine connected to the right side of FIG. 20.

[Explanation of symbols]

 1 front liner 2 back liner 4 single-sided corrugated sheet 5 double-sided corrugated sheet 6a, 6b spray device 7a, 7b watering roll 8a, 8b watering roll 9a, 9b water 10, 10a, 10b, 10c watering roll device 11a, 11b humidification Room 12a, 12b Duct 13a, 13b Room 14a, 14b Moisture measurement sensor 16a, 16b Adjusting device 17 Controller 18 Preset device 19 Production management device 22 Controller 24 Centralized control device h Hot plate group j Upper conveyor k Lower conveyor

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[Procedure amendment]

[Submission date] August 3, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

As shown in FIG. 18 showing a more detailed side view, the double facer B is a hot plate group h arranged in the lower part, an air pressurizing device for applying pressure from the upper part to the hot plate group h, a weight roll, or the like. An upper conveyor j that sandwiches and conveys a pressure device i, a single-faced cardboard sheet 4 which is an adhesive sheet of the back liner 2 and the corrugated core 3, and a double-faced cardboard sheet 5 which is an adhesive sheet of the front liner 1. And a lower conveyor k and the like. In addition, the single-faced corrugated sheet 4 introduced into the hot plate group h of the double facer B
The front liner 1 and the front liner 1 are placed in a state in which they are joined to each other through the glue attached to the step top portion of the core 3, and the front liner receives heat while traveling while sliding in contact with the hot plate group h. The heat of 1 solidifies the glue to bond it. The bonded double-faced corrugated cardboard sheet 5 is conveyed by the upper and lower conveyors j and k and carried out to the subsequent process. Double-sided corrugated cardboard sheet 5 delivered
Is placed Suritti in g-border at slitter scorer 1 disposed dry end C, it becomes split plate undergoing cutting process in the cutoff m, after being transported by the stacker n, rod-like at the loading portion D It will be piled up and discharged to the outside of the machine. The stacker n and the stacking section D are shown in more detail in the side view of FIG.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akinobu Yoshizawa 1-5-7 Tonomachi, Nagaoka City, Niigata Yoshizawa Industrial Co., Ltd. (72) Inventor Kenji Tada 2-150 Fudohonmachi, Tokushima City Sanko Co., Ltd. ( 72) Inventor Hiroyuki Takenaka 5007 Itozaki-cho, Mihara-shi, Hiroshima Mitsubishi Heavy Industries Ltd. Mihara Works (72) Inventor Seiji Seki 5007 Itozaki-cho, Mihara-shi, Hiroshima Mitsubishi Heavy Industries Ltd. Mihara Works (72) Inventor Kazu Kawano Kiyoshi Hiroshima City, Nishi-ku, 4-6-22 Kannon Shinmachi, Hiroshima Research Laboratory, Mitsubishi Heavy Industries, Ltd. (72) Inventor Hiroshi Ishibuchi 4-26, Kannon-shinmachi, Nishi-ku, Hiroshima City, Mitsubishi Heavy Industries, Ltd. (72) Inventor Inoue Yoshio 4-6-32 Higashi Kojiya, Ota-ku, Tokyo Mitsubishi Heavy Industries Tobu Printing Paper Machinery Co., Ltd.

Claims (9)

[Claims] 1. A corrugating machine for producing a double-sided corrugated board sheet, wherein a moisturizing means for bringing the moisture content of the front liner and / or the back liner of the corrugated board sheet close to a steady moisture content under normal temperature and humidity in the production line. A corrugated machine characterized by the provision of. 2. The corrugating machine according to claim 1, wherein at least one of the sandwich-shaped upper and lower conveyors for carrying out the double-faced corrugated cardboard sheet is wetted by a water shower device, a steam shower device, a watering roll, or the like which can be applied over the entire width. A corrugating machine, which is provided with a converting means. 3. The corrugating machine according to claim 1, wherein at least one of the front and back liners of the double-faced corrugated sheet is provided with a moisturizing means such as a water shower device, a steam shower device or a watering roll which can be applied over the entire width. A corrugating machine, characterized in that it is provided in a gap between a group of plates and a conveyor, and / or a gap between devices in a subsequent step. 4. The corrugating machine according to claim 1, wherein a moisturizing means is provided by a humidifying room that covers the front liner side and / or the back liner side of the traveling corrugated cardboard sheet in a partial area or the entire area of the production line after the hot plate group. A corrugated machine characterized by the provision of. 5. The corrugating machine according to claim 1, wherein at least one of the front and back liners of the divided plate-like sheet which is in the process of being discharged to the stacking unit, or the uppermost stacked sheet. A corrugating machine comprising a moisturizing means such as a water shower device or a steam shower device for discharging directed water or steam. 6. The corrugating machine according to any one of claims 1 to 5, further comprising a presetting device for setting each coating amount on the front liner side and / or the back liner side of each wetting means, and further from a production control device. Physical property data and /
Alternatively, the corrugated machine is provided with the preset device that operates according to the preset command value based on the operation command signal of each part. 7. The corrugating machine according to any one of claims 1 to 5, wherein the moisture measuring sensor on the front liner and / or the back liner side, which is arranged in a space between the devices after the hot plate group, and the measured value of the sensor are used. A corrugating machine comprising a controller for individually controlling the amount of water applied to the front liner and / or the back liner side wetting means. 8. The corrugating machine according to claim 1, wherein the moisture measuring sensor has a traverse mechanism so as to measure a moisture distribution of a sheet in the paper width direction, or has a plurality of sensor arrangements in the paper width direction. A corrugating machine having a plurality of arrays of the moistening means for enabling partial control of the moisturizing means in the paper width direction based on the moisture distribution measurement signal in the paper width direction and the individual control device. 9. The corrugating machine according to claim 1, wherein the front liner and / or the front of the divided plate-like sheets are stacked.
Or, in order to bring the moisture content of the back liner closer to the steady moisture content under normal temperature and humidity, wetting means in the conveying process of the front liner base paper, the back liner base paper or the single-sided corrugated board sheet before being introduced into the hot plate. The corrugating machine is characterized in that the means is connected to the preset device or the moisture measuring sensor and control device to receive a command.