JPH09300299A - Assistant material for forming fold and trimming die provided with the material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assist fold forming action without generating a crack or creases on a material sheet by fitting second elastic materials of small elastic modulus to first elastic materials of large elastic modulus, and continuously inclining extending from the upper face of the second elastic material to the upper face of the second elastic material so as to continue to the upper end face of a press rule. SOLUTION: In addition to projectingly providing cutters 2 on a trimming die base plate 1, a press rule 3 for forming a fold is projectingly provided along the product territory surrounded with the cutters 2, and assistant materials 10A, 10B for forming a fold are fitted to the trimming die base plate 1, on both sides of the press rule 3 along the full length in the lengthwise direction. The assistant materials 10A, 10B of the same shape are arranged right and left symmetrically, and the assistant material 10A, 10B is formed so that a first elastic material 11 of large elastic modulus and easily deformable and a second elastic material 12 of small elastic modulus and hardly deformed are combined together and integrated through adhesive, and it is formed into triangular section. The assistant body is continuously inclined extending from the upper face of the second elastic material 12 to the upper face of the first elastic material so as to continue to the upper end face of the press rule 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crease forming auxiliary material which is arranged along a crease forming crease protruding from a die for making a crease on a material sheet such as cardboard, and the auxiliary material. The present invention relates to a die with a material.

[0002]

2. Description of the Related Art Conventionally, in a die for cutting a cardboard into a required shape and making a crease along a required line,
As shown in FIG. 6, a cutting blade 2 is projected from the die-cutting substrate 1, and a ruled line 3 is projected to form a fold. A crease forming mother die 5 having grooves 5a facing the ruled lines 3 is provided on the board 4 on the cutting plate side facing the punching board 1.
The sheet S such as a cardboard is placed on the substrate 4, cut along the required line with the blade 2, and the creases 3 are formed.

Conventionally, as shown in FIG. 7, when the sheet S is pressed by the pressing rule 3 to make a crease, the sheet S can be easily folded. Auxiliary members 6 and 6 for forming folds having a triangular cross section are attached to both sides of the ruled line 3 so as to be the apexes of.

[0004]

As the fold forming auxiliary material 6, cork or the like having a very low elastic modulus is generally used in many cases. However, the elastic modulus is very small and is almost compressed. If the auxiliary material 6 is formed of a material that does not exist, the pressing force on the sheet S may be too strong and cracks or wrinkles may occur. Further, since the auxiliary material 6 is elastically deformed and does not compress,
There was a problem in that it was difficult to make a crease due to the creases 3 clearly on the sheet 3.

In some cases, the auxiliary material 6 is formed of soft rubber or sponge instead of the non-elastic material such as cork. However, in the case of an auxiliary material having such a large elastic modulus, the pressing force is conversely If there is a shortage and the sheet S is a cardboard or the like made of thick paper, there is a problem that the assisting action at the time of forming a fold is small.

The present invention has been made in view of the above-mentioned problems, and it is possible to make a crease clearly by a ruled line, and
An object of the present invention is to provide a fold forming auxiliary material that can assist the crease forming action without causing cracks or wrinkles in the material sheet when forming the folds by the ruled lines, and a die including the auxiliary material.

[0007]

In order to solve the above-mentioned problems, the present invention is a crease forming auxiliary member to be attached to the side surface of a crease forming crease attached to a die, A first elastic member having a large elastic modulus arranged with one surface in contact with the other elastic member and a second elastic member having a very small elastic modulus attached to the other surface of the first elastic member, and the second elastic member and the first elastic member. The elastic member integrally has a substantially triangular cross-section, and is continuously inclined from the upper surface of the second elastic member to the upper surface of the first elastic member so that the upper surface of the first elastic member becomes the upper end surface of the ruled line. We provide an auxiliary material for fold formation that is set to be continuous.

It is preferable that the first elastic material is made of rubber or sponge having a large elastic modulus, and the second elastic material is made of compressed cork and rubber. (Claim 2) The first elastic material and the second elastic material are fixed by an adhesive to be integrated.

A fold forming auxiliary material (hereinafter abbreviated as auxiliary material) in which the first elastic material and the second elastic material are fixed to each other.
As described above, the cross-section has a triangular shape and is arranged so as to sandwich the ruled line, so that the tip of the ruled line has a top of the mountain. The inclination angle of the auxiliary materials on both sides is 15 ° ~
It is in the range of 40 °, preferably between 20 ° and 30 °. In addition, the width of the first elastic material contacting both sides of the ruled line is 3
In the range of 7 mm to 7 mm, preferably about 4 mm.

Further, according to the present invention, in claim 3, the crease forming auxiliary material according to claim 1 or 2 is fixed to both surfaces of the ruled line protruding from the die by means of an adhesive. We provide die cutting.

In the above-mentioned crease forming auxiliary material, since the first elastic material made of rubber or the like having a large elastic modulus is arranged on both sides of the crease, when the crease presses the sheet to make a crease. It can be compressed and the creases can be made clearly by scoring. Further, both sides of the material sheet pressed by the ruled lines are elastically pressed to suppress and prevent the occurrence of cracks and wrinkles from the pressed points by the ruled lines. Further, since the second elastic material that is not substantially elastically deformed is arranged on both sides of the first elastic material, an auxiliary pressing force is applied by the second elastic material so that the fold can be smoothly entered. Therefore, even a cardboard made of cardboard that is difficult to make a crease can be easily made.

Further, in order to attach the mother die to the board on the side of the cutting plate facing the ruled line, conventionally, the mother die attachment assisting tool is temporarily fixed to the mother die, and the mother die attachment assisting tool is fitted to the ruler. In this state, the mother die is fixed to the cutting plate side substrate in this state. At this time, as described above, when the first elastic material having a large elastic modulus of the auxiliary material is located on both sides of the ruled line, the mother die mounting auxiliary tool can be easily provided between the ruled line and the first elastic material. It can be pushed in and installed.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 to FIG. 4, the punching substrate 1 is provided with a blade 2 that cuts the material sheet S along a required line in the same manner as in the conventional case, and a product area surrounded by the blade 2 is formed. The creases 3 for forming folds are provided along the required line. The blade 2 and the ruled line 3 are made of metal such as stainless steel.

The creases 3 have auxiliary members 10 (10A, 10A, 10A) for forming folds on both sides along the entire length in the lengthwise direction.
B) is attached to the punching substrate 1. These auxiliary materials 10
Have the same shape and are arranged symmetrically to form a pair of left and right auxiliary members 10A and 10B.

As shown in FIG. 3, the auxiliary member 10 is a first elastic member 11 made of rubber having a large elastic modulus and easily deformed.
And a second elastic material 12 having a very small elastic modulus that is obtained by mixing and compressing cork chips and rubber and is combined with an adhesive to form a triangular cross-section. That is, the first elastic material 11 is fixed to one surface in the height direction of the second elastic material 12 having a triangular cross section,
The upper inclined surface 11a of the first elastic member 12 is connected to the upper inclined surface 12a of the second elastic member 12 to form a right-angled triangle having an angle of about 20 degrees. A groove 12d, which is small in the lengthwise direction, is formed at a substantially central portion of the inclined surface of the second elastic material 12.

In the auxiliary material 10 composed of the first elastic material 11 and the second elastic material 12, the vertical surfaces 11b of the first elastic material 11 are in close contact with both side surfaces of the ruled line 3 with respect to the die-cutting substrate 1. Thus, the horizontal surface 11c of the first elastic member 11 and the second elastic member 1
Two horizontal surfaces 12c are fixed with an adhesive. In this state, the auxiliary material 1 on both sides with the tip 3a of the ruled line 3 as the vertex
0 (10A, 10B) forms a mountain shape.

As shown in FIGS. 4 (A) and 4 (B), the cutting plate side substrate 4 arranged facing the die-cutting substrate 1 is folded at a position facing the ruled line 3 as described above. The eye forming mother die 5 is fixed.

When the material sheet S is cut and a crease is made, the material sheet S is placed on the substrate 4 as shown in FIG. 4 (A).
The material sheet S is cut by the blade 2 by placing it on the top and lowering the die 1. At the same time, the ruled line 3 is inserted into the groove 5a in the mother die 5 with the material sheet S interposed therebetween, and the material sheet S is folded.

When a fold is formed by the creases 3, the first creases are formed on both sides of the portion where the creases 3 are most pressed.
Since the elastic material 11 presses elastically, the material sheet S
Does not occur and the material sheet S is not cracked or wrinkled. Further, when the creases 3 cut into the material sheet S to make folds, the first elastic members 11 on both sides are compressed and the folds can be made clearly on the material sheet S. And the first
On both outer sides of the elastic material 11, the second elastic material 12 that is hardly deformed applies a load to the material sheet S in the direction pressed by the ruled line 3 and inclines toward the ruled line 3 to apply a pressing force. Since the number is increased, the material sheet can be easily pressed to make a crease. Further, the second elastic material 12 does not become a rigid body and does not greatly deform, but since it has a little elasticity, it can be flexibly applied to the material sheet S to apply a pressing force. It is possible to make creases smoothly without causing wrinkles and the like on the material sheet S.

Moreover, by disposing the first elastic members 11 on both sides of the ruled line 3, as shown in FIG. 5, when the mother die 5 is fixed to the substrate 4 on the cutting plate side, it is temporarily attached to the mother die 5. The mother die mounting auxiliary tool 20 to be fixed can be easily attached to the ruled line 3. That is, the mother die mounting auxiliary tool 20 includes the ruled line fitting portion 20a having a U-shaped cross section, and the holding portions 20 on both side walls thereof.
It is necessary to attach b and 20c to both outer surfaces of the ruled line 3.
When the auxiliary material 11 is made of only the second elastic material that is hardly deformed, it is difficult to push the sandwiching portions 20b and 20c between the ruled line 3 and the auxiliary material, but the surface in contact with the ruled line 3 has elastic modulus. Since the large first elastic material is arranged, the holding portion 20b,
20c can be easily pushed in, and the mother die mounting aid 2
It is possible to easily fit 0 to the ruled line 3.

[0021]

As is apparent from the above description, according to the present invention, the auxiliary material disposed on both sides of the crease forming ruled line is
The scoring side is made of a first elastic material that has a large elastic modulus and is easily deformed, and a second elastic material that is compression-molded with cork chips and rubber on the other surface of the first elastic material is very small and hardly deforms. Since a material is attached and the first elastic material and the second elastic material having different elastic moduli are combined, when the material sheet is pressed by the ruled lines to make a crease,
In a state where cracks and wrinkles do not occur due to the elastic material, and
The second elastic member assists the pressing force to make a smooth crease. Moreover, since the first elastic material on both sides of the ruled line is compressed, the creases can be clearly formed on the material sheet by the ruled line.

Further, as described above, since the first elastic material that is easily deformed is used on the ruled line side, the mother die attachment assisting tool used when attaching the mother die to the substrate on the cutting plate side can be easily attached to the ruled line. It has the advantage that it can be attached.

[Brief description of drawings]

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

FIG. 2 is a bottom view of FIG.

FIG. 3 is an exploded perspective view of a fold forming auxiliary material.

4A and 4B are operation explanatory views.

FIG. 5 is a cross-sectional view showing a state where the mother die is fitted to the ruled line by using the mother die attachment assisting tool.

FIG. 6 is a sectional view showing a conventional example.

FIG. 7 is a sectional view showing another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Die-cutting board 2 Blades 3 Stamping rule 4 Cutting board side board 5 Master mold 10 (10A, 10B) Auxiliary material 11 1st elastic material 12 2nd elastic material 20 Master mold mounting aid S Material sheet

Claims (3)

[Claims] 1. A fold forming auxiliary material to be attached to a side surface of a crease forming press rule attached to a die, wherein the first elastic member has a large elastic modulus and is arranged so that one side is in contact with the side face of the press rule. And a second elastic material having a very small elastic modulus attached to the other surface of the first elastic material, and the second elastic material and the first elastic material are integrally formed to have a substantially triangular cross section, A fold forming auxiliary material, which is continuously inclined from the upper surface of the second elastic material to the upper surface of the first elastic material so that the upper surface of the first elastic material is continuous with the upper end surface of the ruled line. 2. The fold forming auxiliary material according to claim 1, wherein the first elastic material is made of rubber or sponge having a large elastic modulus, and the second elastic material is made of compressed cork and rubber. 3. A punching die provided with an auxiliary material in which the fold forming auxiliary material according to claim 1 or 2 is fixed to both sides of a ruled line protruding from the punching die with an adhesive.