JP2962660B2 - Single-sided corrugated cardboard manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-sided cardboard manufacturing apparatus for manufacturing a single-sided cardboard using a pressure belt.

[0002]

2. Description of the Related Art In a single-sided corrugated cardboard manufacturing apparatus, a gluing roll of a gluing device is brought into contact with the top of a corrugated paperboard formed by an upper roll and a lower roll to apply a size liquid. One-sided cardboard is manufactured by applying a liner paper to the top of the paperboard and then solidifying the glue liquid.

[0003] In order to apply the liner paper to the top of corrugated paperboard, a press roll is conventionally mainly provided. However, according to the press roll type, there are problems such as generation of a press mark and a sheet having a large difference between the front and back sides. Therefore, recently, a pressure belt type which solves these problems has been adopted.

In this pressure belt type, a gluing device is provided on a lower roll facing the outside from one side, and a press roll and a tension roll are arranged on the lower roll facing the outside from the other side. The liner paper is pressed (pressed) against the top of the corrugated paperboard by the tensioned pressure belt.

[0005]

According to the conventional pressure belt type described above, when the pressure belt is broken and the replacement pressure belt is not prepared, the operation of the single-sided corrugated cardboard manufacturing apparatus, The operation had to be stopped for a long time. Further, in the case of paper quality that cannot be manufactured or difficult to manufacture due to the pressure belt type, single-sided cardboard cannot be manufactured.

SUMMARY OF THE INVENTION An object of the present invention is to provide a single-sided corrugated cardboard which can promptly cope with a breakage of a pressure belt and can produce a single-sided corrugated cardboard even when the pressure belt type makes production impossible or difficult. An object of the present invention is to provide a corrugated cardboard manufacturing apparatus.

[0007]

In order to achieve the above object, a single-faced corrugated cardboard manufacturing apparatus according to the present invention has an upper roll and a lower roll that mesh with each other, and a gluing device is opposed to the lower roll from one side to the outside. The lower roll is provided with a frame facing the other side from the outside , and this frame is
Supported on fixed parts via horizontal pins arranged below the step roll
Be to, The rewritable structure swingably toward and away from a direction relative to the lower roll, an actuator for swinging the frame is provided between the frame and the fixed part, to the frame, the other outside the lower roll Provide a heated press roll and tension roll facing each other, and by swinging the frame, the press roll and the tension roll are configured to be able to approach and separate from the lower roll, and the press roll and the tension roll are Along with providing a pressure belt that can be freely detached and opposed to the lower roll,
The frame is provided with a meandering correction device for the pressure belt , and
Add the meandering correction device on the side opposite to the lower roll.
Roll on which pressure belt is hung and roll axis on one side
And a cylinder device for moving the other .

[0008]

According to the structure of the present invention, the pressing belt is stretched over the press roll and the tension roll, and the frame is approached and rocked by the operating device, so that the press roll and the tension roll , that is, the pressing belt are moved to the lower stage. The single-sided corrugated cardboard manufacturing apparatus is operated in a state where the belt is approached to the roll and the belt tension of the pressure belt is adjusted. Then, a glue liquid is applied to the top of the corrugated paperboard formed by meshing the upper roll and the lower roll via a gluing device, and when the corrugated paperboard reaches the lower part of the lower roll, a pressure belt or the like is applied. The liner paper may be fed through the to abut the step top. The liner paper can be pressed against the step top by the pressing force of the pressure belt, so that the corrugated paperboard and the liner paper can move integrally while being sandwiched by the lower roll and the pressure belt. At this time, the pressure belt is heated by a press roll, and by solidifying the size liquid by the heat, the top and the liner paper are integrated to produce a single-faced cardboard. And when the pressure belt meanders
Can be corrected by a meandering correction device.

Use the pressure belt when the pressure belt is broken and no replacement pressure belt is prepared, or when the paper quality is difficult or difficult to manufacture due to the pressure belt type. Switch to non-manufacturing state. That is,
From the pressure belt use, frame by reverse actuation of the actuation device
The over-time and is separated swing, press roll and the tension low
The pressure belt is separated from the lower roll, and the pressure belt is removed. Then, the operation of the actuator
To make the press roll approach the lower roll to set the desired press position. In this state, when the single-sided corrugated cardboard manufacturing apparatus is operated, liner paper can be supplied via a press roll to corrugated paperboard coated with a size liquid on the top of the corrugated paperboard. The liner paper can be pressed against the top by the pressing force of the press roll, so that the corrugated paperboard and the liner paper can move integrally while being sandwiched by the lower roll and the press roll, and the heat of the press roll By solidifying the size liquid by the above, a single-sided cardboard can be manufactured.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 10 is the upper roll, 11 is the lower roll, both rolls 1
The core base paper 1 is formed into the corrugated paperboard 1A by the meshing of 0 and 11. A gluing device 6 for applying a glue liquid 5 to the step top 1a of the corrugated paperboard 1A is provided opposite to a portion on one side of the lower roll 11 where the corrugated paperboard 1A moves. The gluing device 6 includes a glue collecting pad 7 for storing the glue liquid 5, a gluing roll 8, a glue cutting roll 9, and the like.

At the other side of the lower roll 11, that is, at a position opposite to the gluing device 6, there is provided a frame 12 shaped like a letter that follows the outer shape of the lower roll 11. The lower end of the frame 12 is supported by a fixed bracket 14 via a horizontal pin 13 disposed below the lower roll 11, and is configured to be swingable so as to approach and separate from the lower roll 11. You. A cylinder device 15, which is an example of an operating device for performing the approach / separation, that is, the swing, is disposed between the frame 12 and the fixed portion.

A steam-heated press roll 16 is provided at a lower portion of the frame 12, and a steam-heated tension roll 17 is freely rotatably provided at an upper portion. The press roll 16 is also used as a belt hanging roll, and by swinging the frame 12, the lower roll 11
To the press position.
The tension roll 17 is disposed on the frame 12 side via a tension cylinder device. And a pressure belt that can be freely detached and hangs over the press roll 16 and the tension roll 17 and can face the lower roll 11.
19 are provided.

A meandering correction device 20 for correcting the meandering of the pressure belt 19 is provided at an intermediate portion of the frame 12.
That is, the pressure belt 19 on the side opposite to the lower roll 11
Is provided, and one of the roll shafts of the roll 21 is fixed to the frame 12, and the other is supported by the frame 12 via the cylinder device 22. The upper roll 10, the lower roll 11, and the press roll 16 are configured to be synchronously driven by different driving devices, respectively. However, the press roll 16 may be a non-driven idle rotation type. 2 indicates liner paper and 3 indicates single-sided cardboard.

Next, the operation of the above embodiment will be described. FIG. 1 shows a manufacturing state of the single-sided cardboard 3 using the pressure belt 19. That is, the pressure belt 19 is stretched over the press roll 16 and the tension roll 17, and the operation of the cylinder device 15 causes the press roll 16 and the tension roll 17 to be 19 is approached to the lower roll 11 and the tension cylinder device 18 is operated to activate the tension roll.
By moving 17, the belt tension of the pressure belt 19 is adjusted. Further, a gluing device 6 is provided so that the gluing roll 8 abuts on the step top 1a of the corrugated paperboard 1A.

In this state, when the single-sided corrugated cardboard manufacturing apparatus is operated, first, the core base paper 1 is divided into the upper roll 10 and the lower roll 10.
11 is formed into a corrugated paperboard 1A. Then, the formed corrugated paperboard 1A moves together with the lower roll 11 to reach the gluing device 6, and the glue liquid 5 is applied to the top 1a via the gluing roll 8. And the corrugated paperboard 1A is the lower roll 11
Is reached, the liner paper 2 is supplied via the pressure belt 19 or the like so as to contact the step top 1a.

The liner paper 2 is pressed against the step top 1a by the pressing force of the pressure belt 19 which is driven synchronously with the lower roll 11, so that the corrugated paperboard 1A and the liner paper 2 are pressed against the lower roll 11 by the pressure. It is integrally moved while being held by the belt 19. At this time, the pressure belt 19 is heated by a steam heating type press roll 16, and the heat passes through the liner paper 2 to solidify the glue liquid 5, so that the step top 1 a and the liner paper 2 are integrated. Be transformed into Therefore, corrugated paperboard 1
Where A is removed from the lower roll 11, the single-sided cardboard 3 has already been manufactured.

When the pressure belt 19 meanders, it is corrected by the meandering correction device 20, which is performed by moving the other of the roll shafts of the roll 21 by the cylinder device 22.

FIG. 2 shows a state in which the single-sided cardboard 3 is manufactured without using the pressure belt 19. That is, when the pressurizing belt 19 is damaged and no replacement pressurizing belt is prepared, or when the paper quality is difficult to manufacture or difficult to manufacture due to the pressurizing belt type.

First, from the state of FIG. 1, the press roll 16 and the tension roll 17, that is, the pressure belt 19 are separated from the lower roll 11 via the frame 12 by the reverse operation of the cylinder device 15, The tension roll 17 is moved in the loosening direction by the operation of the tension cylinder device 18, and the pressure belt 19 is removed in this state. Next, the operation of the cylinder device 15 causes the press roll 16 to approach the lower roll 11 via the frame 12 to set the desired press position, and the state shown in FIG. 2 is established.

In this state, when the single-sided corrugated cardboard manufacturing apparatus is operated, the corrugated paperboard 1A formed by the engagement of the upper roll 10 and the lower roll 11 moves together with the lower roll 11 and reaches the gluing device 6, where The size liquid 5 is applied to the top 1a. When the corrugated paperboard 1A reaches the lower part of the lower roll 11, the liner paper 2 is supplied via the press roll 16 so as to contact the top 1a.

The liner paper 2 is pressed against the step top 1a by the pressing force of the press roll 16 driven synchronously with the lower roll 11, so that the corrugated paperboard 1A and the liner paper 2 are separated from each other by the lower roll 11 and the press roll 16. The step top 1a and the liner paper 2 are integrated by solidifying the size liquid 5 by the heat of the press roll 16 while being sandwiched between. Therefore, at the place where the corrugated paperboard 1A comes off the lower roll 11, the single-faced cardboard 3 has already been manufactured.

In the above embodiment, the rolls 16, 17, 21 are moved integrally via the frame 12, but this may be done by moving only the press roll 16 separately. Further, although the cylinder device 15 is shown as an operating device, it may be of a type in which a screw shaft is rotated to move.

[0023]

According to the present invention having the above-described structure, by applying a pressure belt over a press roll and a tension roll, it is possible to produce a sheet without a press mark and with a small difference between the front and back sides. The single-sided cardboard can be manufactured by the pressure belt type. Then, by removing the pressure belt and moving the press roll to the pressing position, it is possible to switch to the production of single-sided corrugated cardboard by the press roll type. It is possible to recover the operation stoppage of the apparatus, that is, the operation stoppage in a short time, and it is possible to easily manufacture single-sided cardboard even in the case of paper quality that cannot be manufactured by the pressure belt type or paper quality that is difficult to manufacture.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention and is a side view when a pressure belt is used in a single-sided cardboard manufacturing apparatus.

FIG. 2 is a side view of the single-sided cardboard manufacturing apparatus when a pressure belt is not used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Core base paper 1A Corrugated paperboard 1a Step top 2 Liner paper 3 Single-sided cardboard 6 Gluing apparatus 10 Upper roll 11 Lower roll 12 Frame 15 Cylinder device (actuating device) 16 Press roll 17 Tension roll 18 Tension cylinder device 19 Pressure belt 20 Meandering correction device

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Endo 3-6-17 Asahi, Kawaguchi City, Saitama Prefecture Uchida Seisakusho Co., Ltd. (56) References JP-A-6-8360 (JP, A) JP-A-7 -68668 (JP, A) JP-A-7-285186 (JP, A)

Claims (1)

(57) [Claims] The present invention has an upper roll and a lower roll meshing with each other, and a gluing device is provided on the lower roll so as to face from one outside, and the lower roll is opposed to the other roll from the outside.
And place this frame below the lower roll.
By is supported on the fixed part via a transverse pin which is arranged, The rewritable structure swingably toward and away from a direction relative to the lower roll, an actuator for swinging the frame frame
And a fixing part, and the frame is provided with a heating-type press roll and a tension roll opposed to the lower roll from the other outside, and the press roll and the tension roll are moved downward by swinging the frame. A pressurizing belt that is configured to be freely approachable and separable to the press roll and the tension roll and that can be hung and detached and opposed to the lower roll is provided over the press roll and the tension roll. This meandering correction device,
A pressure belt is hung on the side opposite to the lower roll.
Roll and the roll axis move with respect to one
Single facer which characterized by being configured by a cylinder device and to.