JPH04124641U - cardboard box making machine - Google Patents

Abstract

(57) [Summary] [Purpose] By humidifying corrugated cardboard sheets, various performances such as printing, lining, bending, etc. were improved. [Structure] The can making machine main body 25 includes a paper feeding section 2 that feeds corrugated cardboard sheets 1 one by one, and a printing section 3 connected to the paper feeding section 2.
and a paper discharge section 11 connected to the printing section 3. Furthermore, there is a measuring device 5 for detecting the moisture content of the corrugated sheet 1 fed to the can making machine main body 25, and a predetermined amount of moisture is controlled for the corrugated sheet 1 fed by feeding back the measured value of the measuring device 5. A humidifying section 4 is also provided.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a corrugated box making machine equipped with a flexo printing machine.

0002

[Conventional technology]

A typical corrugated box making machine equipped with a flexo printing machine uses a tape as shown in Figure 4. The corrugated sheets 1 stacked on the bull 14 are cut using a kicker or lead edge method. a sheet feeding unit 2 that sequentially feeds out the lowest sheet 1a one by one through a feeder; A printing section 3 performs predetermined printing on the corrugated cardboard sheet 1 conveyed from the paper feed section 2; A ruled line K is added to the corrugated cardboard sheet 1 conveyed from the printing section 3 as shown in FIG. A paper discharge section 11 that processes the rotor groove S and a cardboard sheet conveyed from the paper discharge section 11. A die cut part 12 for machining hand holes and air holes in the hole 1, and a die cut part 12 from the die cut part 12. The folder ink section performs various processes such as gluing and bending the corrugated cardboard sheet 1 being conveyed. 13 and a counter ejector section (not shown), etc., the box making machine main body 25 is constructed. .

0003 The printing section 3 has an ink reservoir 17, and the ink in the ink reservoir 17 is sequentially transferred. The plate cylinder 18 that is supplied, the printing plate 19 wound around the plate cylinder 18, and the cardboard attached to the printing plate 19. The printing section 3 has an impression cylinder 20 that is pressed into contact with the sheet 1, and the printing section 3 is capable of printing in multiple colors. As shown in Figure 3, there are multiple sets, that is, two colors, No. 1 and No. 2, as shown in Figure 3. Two sets are installed so that printing can be performed, and a cardboard box running in the center is installed in the paper discharge section 11. By holding and rotating the sheet 1, a predetermined ruled line K is formed as shown in Fig. 3. A pair of upper and lower creaser rolls 15a, 15b and a cardboard sheet running in the center 1 and rotate to form a predetermined slotter groove S as shown in Fig. 3. It has a pair of upper and lower slotter rolls 16, and the die cutter part 12 has a die series. It has a punching die 24 fixed to a die 23 and an anvil cylinder 22.

0004 The conveyance of the corrugated paperboard sheet 1, which is subjected to various processing at each of the above-mentioned sections, is carried out using tools between each section. Conveyance rolls 10a to 10h and conveyor belts 21a, 21b and illustrations omitted. This is done through various sheet guides.

[0005]

[Problem that the idea aims to solve]

The conventional corrugated sheet box making machine is configured and functions as described above, and is supplied. If the surface of the cardboard sheet is dry, it will take time for the ink to dry, and the operating speed will decrease. If the speed (travel speed of the sheet) is high, the ink cannot dry quickly and the anvil Ink transfers to the cylinder or conveyor belt, causing ink stains on subsequent sheets.

[0006] Also, if a sheet is too dry, it may be difficult to score or fold it in the downstream process. As a result, cracks (broken lines) may occur in the liner, which is the paper material of the sheet. The present invention was developed to deal with such problems, and is based on cardboard packaging. The purpose is to moisturize (humidify) a suitable amount of water.

[0007]

[Means to solve the problem]

The configuration of the present invention for achieving the above purpose will be explained using FIG. 1 corresponding to an embodiment. To be clear, the present invention includes a paper feeding unit that feeds corrugated cardboard sheets 1 one by one to the main body 25 of the box making machine. 2, a printing section 3 connected to the paper feed section 2, and a paper discharge section 11 connected to the printing section 3. In a ball box making machine, water content in the corrugated cardboard sheet 1 fed to the box making machine main body 25 A measuring device 5 that detects the amount and a stage that feeds back the measured value of the measuring device 5 and is fed. It is characterized by being equipped with a humidifying section 4 that controls a predetermined amount of moisture on the ball seat. shall be.

[0008]

[Effect]

The present invention uses the above-mentioned means to place an appropriate amount of water at a predetermined position on the sheet being fed. It is possible to hydrate (humidify) the ink on the sheet, which is the paper side of the ink during printing. absorption becomes faster. Also, humidification with steam increases the temperature of the surface of the paper material. , the drying performance (speed) of the ink is improved, and by humidifying the ruled line area, it is possible to create lines easily. It is possible to eliminate cracks in the paper material that occur during the folding process.

[0009]

【Example】

An embodiment of the present invention will be described below based on FIG. 1. Reference numeral 25 indicates a box making machine body; The box making machine main body 25 has a paper feed section 2, a printing section 3, and a paper discharge section 11. , printing section 3, and paper ejection section 11 are the same as the paper feeding section 2, printing section 3, and printing section 3 of the conventional example shown in FIG. It is the same as the paper discharge section 11.

0010 In the present invention, a humidifying section 4 is located between the paper feeding section 2 and the printing section 3. A measuring device 5 is installed at the front of the paper section 2, and the humidifying section 4 feeds the paper to the paper feeding section 2. It is connected via a controller 6 to a measuring device 5 that detects the moisture content of the corrugated sheet 1 beforehand. a steam generator 7 and a steam supply section 8 connected to the steam generator 7 via a steam pipe 9; As shown in FIG. Multiple options that can be set to move in the width direction of the corrugated cardboard sheet 1 in conjunction with the positions of a and ruled line K. A movable part 8b is provided, and these move up and down with respect to the corrugated cardboard sheet 1 that travels together. They were installed facing each other or with only the upper sides facing each other. The model of the humidifying unit 4 is the one shown in the example. It is not limited to this, and various methods can be considered in terms of length and shape.

[0011] In this way, the corrugated cardboard sheet 1 is humidified and heated with steam, so that it can be transported downstream. The paper is transported to the printing department of The absorbency of the ink is increased, thus speeding up the drying of the ink, and by humidifying the ruled line area. The creasing and cracking (cracks in the sheet) that occurred in the past when folded are eliminated.

0012

[Effect of the idea]

In this way, according to the present invention, the main body of the box making machine has a paper feeding section, a printing section, and a paper ejection section. includes a measuring device that detects the moisture content of the corrugated sheet to be fed, and the measured value of the measuring device. A process that controls a predetermined amount of moisture in the corrugated paperboard sheet that is fed. Since it is equipped with a humidifying section, the printing surface of the paper material is humidified and becomes a water-based ink paper material. The paper absorbs more quickly, speeding up the drying of the ink, and humidifying the paper with high-temperature steam. The temperature of the material surface increases, which speeds up the drying of the ink and therefore reduces the amount of ink staining the paper material. Since there is no leakage, it is possible to increase the operating speed, and the marking area is also humidified, making the marking process easier. Eliminates cracks in the paper material during inserting and folding processes, and improves surface and creasing of the paper material. It has the advantage of not reducing the strength of the paper material because it only humidifies parts of the paper.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing a part of an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a processing state of a corrugated cardboard sheet.

FIG. 4 is a side view showing a conventional example.

[Explanation of symbols]

1 Cardboard sheet 2 Paper feed section 3 Printing Department 4 Humidification section 5 Measuring instruments 11 Paper ejection section 25 Box making machine body

Claims (1)

[Scope of utility model registration request] [Claim 1] A corrugated cardboard box having a paper feeding section that feeds corrugated cardboard sheets one by one into a box making machine main body, a printing section connected to the paper feeding section, and a paper discharge section connected to the printing section. a measuring device for detecting the moisture content of the corrugated paperboard sheet fed to the main body of the box making machine in the machine; and a humidifying section that feeds back the measured value of the measuring device to control a predetermined amount of moisture in the corrugated paperboard sheet being fed. A corrugated box making machine characterized by being equipped with.