JP2528605B2 - Printer-Die cutter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a printer die cutter for printing and punching a corrugated cardboard sheet in series.

[0002] Fig. 4 shows printing, on a corrugated cardboard sheet,
The printer die cutter which punches is shown. The printer die cutter is provided with a printing device (1) on the upstream side of the transfer path of the corrugated board sheet (5), and a ruled line partitioning device (2) and a punching device (6) on the downstream side. The printing device (1)
One or more plate cylinders (11) (11a) (11b) of the same diameter are provided above the transition path of the corrugated board sheet (5), and face the plate cylinder below the transition path of the corrugated cardboard sheet (5). Receiving roll (12) (12
a) (12b) has been deployed.

The ruled line partitioning device (2) is a corrugated cardboard sheet (5).
A scoring roll (21) is provided on the upstream side and a roll with partition blades (23) is provided on the downstream side above the transition path of the corrugated cardboard sheet (5). The table rolls (22) and (24) are provided opposite to (23).

In the punching device (6), a roll (3) with a punching blade is provided above the transition path of the corrugated board sheet (5),
A base roll (4) is arranged below the roll (3). In terms of use, the ruled line partition device (2) and the printing device (1)
It is also possible to place a punching device (6) between them.

During passage between the plate cylinders (11) (11a) (11b) and the receiving rolls (12) (12a) (12b) of the printing device (1), the corrugated cardboard sheet (5) is printed. , Further, the corrugated cardboard sheet (5)
As shown in FIG. 6, the ruled line partitioning device (2) is provided with a ruled line (51) for manufacturing and a partition groove (52), and the punching device (6) punches holes for ventilation or for a handle. Punching processing such as (53) is performed.

As shown in FIG. 5, a roll with a punching blade (3)
Is configured by penetrating the arcuately curved mounting plate (34), mounting the blade (35), and bolting the mounting plate (34) to the metal roll main body (31).

The surface of the base roll (4) disposed opposite to the roll (3) with a punching blade is made of urethane resin, and the blade (35) on the roll (3) with a punching blade is the urethane base. The roll (4) bites into the roll (4) with a big impact and hits strongly.
The diameter of the table roll (4) is smaller than the diameter of the roller (3) with a punching blade, and the blade (35) repeatedly hits the same position on the table roll (4) to form the table roll (4). Is prevented from being locally damaged.

[0008]

Rolls with punching blades
There is a clearance for rotation between the rotating shaft (38) of (3) and the bearing metal (not shown) of the frame,
Due to this clearance, a large impact sound and vibration are generated each time the blade (35) collides with the base roll (4). For this reason,
It was not possible to rotate the roll with a punching blade (3) at a high speed to improve the work efficiency, and it was forced to operate at 60 rpm or less per minute.

The corrugated cardboard sheet (5) has a thickness of 3-8.
There is about mm, and between the rolls (3) and (4) corrugated cardboard sheet (5)
When passing through, the rotating blade (35) exerts a pressing force on the corrugated cardboard sheet (5) and a strong pulling force to the feeding side, on the surface of the corrugated cardboard sheet (5) on the side with the punching blade (3), As shown in FIG. 6, the periphery of the punched hole (53) is crushed, and a break line (54) extending in the direction opposite to the sheet feeding direction indicated by an arrow A is generated.

In the conventional printer die cutter, the roll with punching blade (3) is the same as the plate cylinder (11) in the corrugated cardboard sheet.
It is located above the transition road of (5). Therefore, a breaking line (54) around the punched hole (53) appears on the printed surface side of the corrugated cardboard sheet (5), that is, the surface that becomes the outer surface during manufacturing.
Impair the value of the product.

According to the present invention, the generation of vibration and noise can be suppressed even when rotated at a high speed, high speed operation is possible, and the breaking line (54) around the punching hole (53) is the corrugated cardboard sheet (5). The punching hole (53) can be formed so as to appear on the surface opposite to the printing surface, thus clarifying the printer die cutter that can solve the above problems.

[0012]

The printer die cutter of the present invention is a plate cylinder with a corrugated cardboard sheet (5) sandwiching a transition path.
Printing unit (1) that is provided with (11) and receiving roll (12) facing each other.
And a roll (3) with a punching blade and a base roll (4) that are provided on the downstream side of the printing unit (1) and sandwich the corrugated board sheet transfer path.
In a printer die cutter constituted by a punching section (6) which is arranged to face each other, a roll with a punching blade
(3) is a blade mounting in which an elastic resin layer (32) is formed on a metal roll body (31), the elastic resin layer (32) is covered with a metal plate (33), and a blade (35) is penetratingly mounted. The plate (34) is formed by covering the metal plate (33), and the surface of the table roll (4) is made of metal.
The roll with punching blade (3) and the plate cylinder (11) are arranged on the opposite sides of the plate cylinder (5) with respect to the transfer path,
The plate cylinder (11) has the same diameter as the plate roll (4).
Even if the table roll (4) makes one revolution, the parts that were in contact with each other again come into contact with each other again.

[0013]

[Operation and effect] Both rolls (3) so that the blade (35) of the roll with punching blade (3) comes into contact with the base roll (4) with a light touch
Adjust the interval in (4). The rolls (3) and (4) are rotated to draw the corrugated board sheet (5) between the rolls (3) and (4), and the corrugated board sheet (5) is punched by the blade (35) of the roll (3) with a punching blade.
Punch (5).

At the time of punching, the blade (35) hits the base roll (4) with a weak impact, and this impact is caused by the roll with a punching blade (3).
Absorbed by elastic deformation of the elastic resin layer (32) of the blade (35)
And damage to the base roll (4) can be suppressed,
Generation of large impact noise and vibration can be suppressed. Therefore, even when the roll with a punching blade (3) was operated at a speed of 150 revolutions per minute, noise and vibration could be suppressed more than when the conventional device was operated at 60 revolutions per minute.
The inner end of the blade (35) contacts the metal plate (33), and the inner end of the blade (35) does not damage the elastic resin layer (32).

A roll with a punching blade arranged on the opposite side of the plate cylinder (11) with respect to the transition path of the corrugated board sheet (5).
In order to punch the corrugated cardboard sheet (5) by (3), that is, to punch the corrugated cardboard sheet (5) from the surface opposite to the printing surface, the breaking line (54) around the punching hole (53) is Appears on the other side. Therefore, when the bellows is assembled with the printing surface outside, the fracture line (54) around the punching hole (53) appears on the inside surface of the bellows and cannot be seen from the outside, impairing the commercial value of the bellows. Absent.

By disposing the roll (3) with a punching blade on the opposite side of the plate cylinder (11), the base roll (4) facing the roll (3) with a punching blade is of course the same as the plate cylinder (11). Located on the side.
In the present invention, since the diameters of the table roll (4) and the plate cylinder (11) are matched, even if the corrugated cardboard sheet (5), which has not been dried out of ink immediately after printing, rubs the table roll (4), Since the ink adhering portion of the base roll (4) comes into contact with the same printing position of the corrugated cardboard sheet (5) passing through, the ink can be prevented from being transferred and stained on the portion other than the printing position of the corrugated cardboard sheet (5).

[0017]

FIG. 1 shows a printer die cutter according to the present invention. Each plate cylinder (11) (11a) (11b) of the printing section (1),
Creasing roll (21) of crease partitioning part (2), roll with partition blade (23), and receiving rolls (12) (12) arranged opposite to them
The a) (12b) and the table rolls (22) and (24) are the same as the conventional one.
In implementing the present invention, the ruled line partition portion (2) may be omitted.

A feature of the present invention is that the roll (3) with a punching blade of the punching portion (6) is located at a position opposite to the plate cylinder (11) with respect to the transition path of the corrugated cardboard sheet (5), that is, the transition. This is the point that was placed under the road. A base roll (4) is arranged above the transition path of the corrugated board sheet (5) facing the roll (3) with a punching blade.

In the embodiment, the diameter of the table roll (4) is equal to the plate cylinder (1
It has the same diameter as 1), and the surface is made of metal, not conventional urethane resin. The table roll (4) is
A steel roll is tempered to a sorbite structure, and the surface is hard chrome plated. The sorbite structure is neither as hard nor brittle as the martensite structure obtained by quenching steel, is easy to plate, is harder and tougher than the pearlite structure, and has excellent impact resistance.

The roll with punching blade (3) is a base roll (4)
As shown in Fig. 2, the metal roll body is formed to have the same diameter as
An elastic resin layer such as a urethane resin layer (3 mm thick) (3)
2) is formed, the elastic resin layer (32) is covered with a metal plate (33) having a thickness of about 1.6 mm, and a blade (35) is attached through the blade mounting plate (34).
Over the metal plate (33) and bolt it to the roll body (31).

As shown in FIG. 3, the blades (35) of the embodiment are combined in an elliptical shape with straight blade plates (36) (36) and curved blade plates (37) (37) to form a blade mounting plate (34). ) From the surface of corrugated sheet
Corresponding to the thickness of (5).

The roll with punching blade (3)
Adjust the distance between the rolls (3) and (4) so that the blade (35) of the blade contacts the base roll (4) with a light touch. The rolls (3) and (4) are rotated to draw the corrugated board sheet (5) between the rolls (3) and (4), and the corrugated board sheet (5) is punched by the blade (35) of the roll (3) with a punching blade.

During punching, the blade (35) hits the base roll (4) with a weak impact, and this impact is due to the punch blade roll (3).
Absorbed by elastic deformation of the elastic resin layer (32) of the blade (35)
And damage to the base roll (4) can be suppressed,
Generation of large impact noise and vibration can be suppressed. Therefore, even when the bladed roll (3) was operated at a speed of 150 revolutions per minute, noise and vibration could be suppressed more than when the conventional device was operated at 60 revolutions per minute. Blade (35)
Since the inner end of the blade contacts the metal plate (33), the inner end of the blade (35) does not damage the elastic resin layer (32).

A roll with a punching blade arranged below the transition path of the corrugated board sheet (5), that is, on the side opposite to the plate cylinder (11).
In order to punch the corrugated cardboard sheet (5) by (3), that is, to punch the corrugated cardboard sheet (5) from the surface opposite to the printing surface, the breaking line (54) around the punching hole (53) is Appears on the other side. Therefore, when the bellows is assembled with the printing surface outside, the fracture line (54) around the punching hole (53) appears on the inside surface of the bellows and cannot be seen from the outside, impairing the commercial value of the bellows. Absent.

Simply by reversing the arrangement positions of the plate cylinder (11) and the punch blade roll (3) with respect to the transition path of the corrugated cardboard sheet (5), the base roll (4) with respect to the punch blade roll (3) is reversed. However, for the transfer path of corrugated cardboard sheet (5),
Located on the same side as (11), the table roll (4) rubs the printed surface of the corrugated board sheet (5) on which the ink has not dried, and this is transferred to the next corrugated board sheet (5) and transferred to the corrugated board sheet (5). ) May be polluted.

However, according to the present invention, the table roll (4) and the plate cylinder (1
Since the diameters of 1) are matched, even if the corrugated cardboard sheet (5) that has not been dried out of ink immediately after printing rubs the base roll (4), it will be in the same printing position on the next passing corrugated cardboard sheet (5). Since the ink adhering portion of the base roll (4) comes into contact, it is possible to prevent the ink from being transferred to a portion other than the printing position of the corrugated cardboard sheet (5) and becoming dirty.

In carrying out the present invention, a corrugated cardboard sheet
Even if the plate cylinders (11), (11a), and (11b) are arranged below the transition passage of (5) and the roll with a punching blade (3) is arranged above the transition passage, the same effect as above can be obtained. it can.

The above description of the embodiments is for the purpose of illustrating the present invention, and should not be construed as limiting the invention described in the claims or limiting the scope. The configuration of each part of the present invention is not limited to the above-mentioned embodiment, and it goes without saying that various modifications can be made within the technical scope described in the claims.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of a printer die cutter of the present invention.

FIG. 2 is a cross-sectional view of essential parts of a roll with a punching blade and a base roll.

FIG. 3 is a perspective view of a main part with a part of a roll with a punching blade cut away.

FIG. 4 is a schematic explanatory diagram of a conventional printer die cutter.

FIG. 5 is a cross-sectional view of essential parts of a conventional roll with a punching blade and a base roll.

FIG. 6 is a perspective view in which a part of a corrugated board sheet is cut away.

[Explanation of symbols]

 (1) Printing section (11) Plate cylinder (2) Ruled line partition section (3) Roll with punching blade (31) Roll body (32) Elastic resin layer (33) Metal plate (34) Blade mount (4) Roll (6) Cardboard sheet punching device

Claims (1)

(57) [Claims] 1. A printing unit (1) comprising a plate cylinder (11) and a receiving roll (12) arranged opposite to each other with a transition path of a corrugated board sheet (5) interposed therebetween.
And a roll (3) with a punching blade and a base roll (4) that are provided on the downstream side of the printing unit (1) and sandwich the corrugated board sheet transfer path.
In a printer die cutter constituted by a punching section (6) which is arranged to face each other, a roll with a punching blade
(3) is a blade mounting in which an elastic resin layer (32) is formed on a metal roll body (31), the elastic resin layer (32) is covered with a metal plate (33), and a blade (35) is penetratingly mounted. The plate (34) is formed by covering the metal plate (33), and the surface of the table roll (4) is made of metal.
The roll with punching blade (3) and the plate cylinder (11) are arranged on the opposite sides of the plate cylinder (5) with respect to the transfer path,
The plate cylinder (11) has the same diameter as the plate roll (4).
The printer die cutter, wherein the parts that were in contact with each other again come into contact with each other even if the table roll (4) makes one revolution.