JPH0319057B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Field of Industrial Application The present invention relates to a single facer that allows one facer to manufacture single-sided corrugated cardboard with a plurality of flutes.

(2) Prior art As a prior art for this type of single facer,
There was one shown in US Pat. No. 3,455,767. The single facer of this U.S. patent consists of an upper roll, a lower roll that meshes with the upper roll and forms corrugated corrugations on the core paper being fed, and a corrugated corrugation of the corrugated paper on the lower roll. A single phase machine comprising a sizing device that applies glue to the top, and a pressure roll that laminates the liner paper sent in pressure contact with the lower roll with the glued core paper sent from the lower roll. There are two saunits. In this single facer, if the type of corrugation of the corrugated rolls in one unit is different from the type of corrugations of the corrugated rolls in the other unit,
Two types of single-sided corrugated cardboard for flutes can be manufactured by switching at any time. However, such a single facer requires large equipment, cannot be installed in an existing corrugator line, and has the drawbacks of high production costs.

(3) Problems to be Solved by the Invention An object of the present invention is to be able to selectively manufacture a plurality of different single-sided corrugated cardboard boxes, to make it relatively compact, and to be able to install it in existing equipment.
Furthermore, the present invention provides a single facer that is inexpensive to manufacture.

(4) Means for Solving the Problem As shown in the drawing, the single facer of the present invention meshes with the upper roll 11 and forms corrugated stages on the core paper M being fed. A plurality of corrugating roll devices 1 consisting of a lower corrugating roll 12
0, a rotating device 20 having a rotating frame 21 in which the plurality of corrugating roll devices 10 are arranged and can be rotated; One gluing device 30 that applies glue to the corrugated top F of the core paper M and is movable within a range that does not interfere with the rotation of the corrugating roll device 10, and is located at the center of the rotating frame 21. It is provided with one pressure roll 40 for laminating the liner paper L sent thereto with the glued core paper M sent from one of the lower rolls 12.

In the present invention, the corrugating roll device 10 has shafts (not shown) of the upper roll 11 and the lower roll 12 that allow the upper roll 11 and the lower roll 12 to be brought into contact with or separated from the pressure roll 30 individually or in conjunction with each other. A moving device 13 is provided. Also,
The rotating device 20 includes a rotating frame 21 to which a plurality of corrugating roll devices 10 are attached, and a starting device 22 that rotates the rotating frame 21. The gluing device 30 includes a known gluing tank 31 and a gluing roll 3, respectively.
2. Doctor roll 33 and doctor knife 34
It is equipped with

(5) Examples Examples of the present invention will be described in detail below with reference to the drawings.

10A is a corrugating roll device consisting of an upper roll 11A and a lower roll 12A that meshes with the upper roll 11A, and which creates an unwinding of the A flute. Each journal receiver 111A of the upper roll 11A and the lower roll 12A is controlled by a pair of air cylinders 131A. and 12
A moving device 18A is provided which moves the lower roll 12A to press against or release the lower roll 12A from the pressure roll 40.

Reference numeral 10 denotes a corrugating roll device consisting of an upper roll 11B and a lower roll 12B that meshes with the upper roll 11B, and which makes the B flute unwind.Each journal holder for the upper roll 11B and the lower roll 12B is controlled by a pair of air cylinders 181B. 111B and 121
B and move the lower roll 12B to the pressure roll 4.
0 is provided with a moving device 13B that presses against or separates from it.

Reference numeral 20 denotes a rotating device, which is a rotating frame 2 to which corrugated roll devices 10A and 10B and single-sided corrugated paperboard guide rolls 211A and 211B are respectively attached.
1, and a fan-shaped gear 2 carved on the rotating frame 21.
10 is provided with a starter device 22 in which a pinion 221 is engaged. 30 is a glue tank 3 provided with a roller 311 that moves on a track 312, a preheater 61, and a core paper guide roll 62.
1. A gluing device equipped with a glue roll 32, a doctor roll 33, and a doctor knife 34, respectively. 40 is a pressure roll, and the rotating frame 21
It is located at the center of the roll and has a larger outer diameter than a normal pressure roll.

(6) Operation and Effect of the Invention Now, if the corrugating roll device 10A produces a flute of A flute, and the corrugating roll device 10B creates a flute of B flute, a single-sided corrugated board S of A flute is manufactured. The following operations are performed: The corrugated roll device 10 is operated by the rotating device 20.
After rotating A to the predetermined position X, the pressure roll 4
The lower roll 12A is brought into pressure contact with the pressure roll 40 so that the liner paper L wound in a zero-wound manner and the core paper M fed out from the lower roll 12A and pasted with glue can be bonded together. Next, the gluing device 30, which was in position b where it does not interfere with the rotation of the corrugating roll device 10, is moved to position a, and the gluing device 32 is placed on the lower corrugating roll 1.
Adjust so that it touches the corrugated top F of the core paper M wound around 2A. Lower roll 12 of corrugating roll device 10B
B is kept away from the pressure roll 40.

After doing this, if the lower roll 12A of the corrugating roll device 10A, the glue roll 32 and the pressure roll 40 of the gluing device 30 are started and rotated, A
Flute single-sided corrugated cardboard S will be manufactured continuously. To manufacture single-sided corrugated board with B flute, move the gluing device 30 to position b, move the corrugating roll device 10A to the lower corrugating roll 12A, and press the pressure roll 4.
After releasing it from 0, start the rotation device 20 to set the corrugating roll device 10A to the Z position, and move the corrugating roll device 10A to the Z position.
If B is moved from the Y position to the X position, a single-sided corrugated board with a B flute can be manufactured using the same operation as in manufacturing the single-sided corrugated board with an A flute described above.

Therefore, according to the present invention, single-sided corrugated cardboard with a plurality of different flutes can be manufactured with one single facer.

Since the single facer of the present invention can be made relatively small, it can be installed in existing equipment and is inexpensive to manufacture. Further, in the present invention, the pressure roll 40 is manufactured with a larger outer diameter than a normal pressure roll, so that the heating effect is large and it is convenient for adhering the liner paper to the core paper.

[Brief explanation of the drawing]

The drawings are schematic explanatory diagrams showing embodiments of the present invention. 10... Corrugated roll device, 11... Upper roll,
12...lower roll, 20...rotating device, 21...
...Rotating frame, 30...Gluing device, 40...Pressure roll, M...Corner paper, F...Corrugated top of corrugated core paper, L...Liner paper.

Claims (1)

[Claims] 1. A plurality of corrugating roll devices comprising an upper roll and a lower roll that meshes with the upper roll and forms corrugated corrugations on the core paper being fed, and the plurality of corrugating roll devices are arranged so that they can rotate. A rotating device having a rotating frame configured to apply glue to the corrugated top of the corrugated core paper on the lower roll of any of the corrugating roll devices, and not interfering with the rotation of the corrugating roll device. a gluing device that can be moved within a range; and a gluing device that is arranged at the center of the rotating frame and laminates the fed liner paper with the glued core paper fed from one of the lower rolls. Single facer characterized by being equipped with a pressure roll.