JP4446682B2 - Die cutter for cardboard sheet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a corrugated cardboard die cutter for punching a rectangular corrugated cardboard sheet into a predetermined shape and forming a crease ruled line.
[0002]
[Prior art]
FIG. 6 (IV) shows a blank (product) A for forming a cardboard box, and the blank A is provided with a ruled line a for folding. The blank A including the ruled line a is formed by a die cutter.
[0003]
There are two types of die cutters, a rotary type and a flat type. FIG. 7I shows a conventionally known rotary die cutter. This rotary die cutter has an arc-shaped die base material 72 shown in FIG. 7 (II) in a die base material support cylinder 71 as a die base material support member provided facing a lower side of an anvil cylinder 70 as a receiving member. The anvil cylinder 70 and the mold base support cylinder 71 are rotated relatively in the opposite directions. During this rotation, the punched blade 73 and the ruled member 74 provided on the mold base 72 are received by the anvil cylinder 70 which is a receiving member, and the rectangular corrugated cardboard sheet S which has been fed in has a product shape. A punching cut line and a ruled line are inserted.
[0004]
Here, there are a soft type and a hard type in the rotary die cutter. In the soft type, the cutting edge of the punching blade 73 is bitten into an elastic body layer such as urethane rubber provided on the outer periphery of the anvil cylinder 70 to form a punching cutting line on the corrugated cardboard sheet S. In the hard type, a punching cutting line 73 is formed on the corrugated cardboard sheet S by bringing a punching blade 73 into contact with an anvil cylinder 70 made of, for example, chrome-plated steel. Further, there is a semi-hard type as a hard type. In this semi-hard type, a thin stainless steel plate is wound around the outer periphery of the anvil cylinder 70, and the cutting edge of the punching blade 73 is brought into contact with the stainless steel plate to form the corrugated cardboard sheet S. A punch cut line is formed.
[0005]
In both the soft type and the hard type, the ruled line member 74 is pressed against the cardboard sheet S supported by the anvil cylinder 70 to form a ruled line.
[0006]
Here, the soft type and the hard type have the following advantages and disadvantages, respectively.
Soft type
[Advantages]
-It is easy to adjust the sharpness by the punching blade and the ruled line pressure by the ruled member, that is, the ruled line strength.
-High accuracy is not required for mounting and manufacturing of punching blades and ruled members on the mold base.
・ Long life of punching blades and ruled members.
-The operating speed of the device can be increased.
[Disadvantages]
-Ruled line strength is not uniform depending on the state of the elastic layer on the anvil surface.
・ The elastic layer on the anvil surface needs to be replaced due to wear or damage, resulting in high costs.
-Depending on the state of the elastic layer on the anvil surface, the dimensional accuracy of the punched cut line and the ruled line may be adversely affected.
Hard type
[Advantages]
・ There is little variation in ruled line strength.
-Since there is almost no wear on the anvil surface, the cost required for replacement can be reduced.
・ The dimensional accuracy of the punched cutting line is good.
[Disadvantages]
・ High precision is required for mounting and manufacturing the punching blade and ruled member on the mold base.
・ It is difficult to adjust the sharpness with the punching blade and the strength of the ruled line with the ruled member.
-The service life of punching blades and ruled members is short.
[0007]
On the other hand, in the flat plate type die cutter, although not shown in the figure, the gripper provided in the sheet transfer device is used to intermittently transfer the rectangular cardboard sheet by a fixed stroke in one direction with the leading end of the rectangular cardboard sheet. A flat plate-like steel anvil and a mold base support base are arranged vertically opposite to each other as a receiving member at a stop position, and a mold base provided with a punching blade and a ruled member is attached to the mold base support base, When the corrugated cardboard sheet is stopped, the anvil and the mold base support base are moved relative to each other in the approaching direction, and the product is applied to the corrugated cardboard sheet by the punching blade 73 and the ruled member 74 fixedly attached to one mold base material. Are formed in the same shape, and the ruled lines are creased.
[0008]
[Problems to be solved by the invention]
By the way, in both conventional rotary type and flat plate type die cutters, the punching cutting line and the ruled line 74 are simultaneously formed by the punching blade 73 and the ruled member 74 fixedly attached to one mold base. Therefore, when the cutting edge 73 is cut and the cutting of the corrugated cardboard sheet S is incomplete, if the cutting pressure is increased so that a complete cutting state is obtained, the ruled pressure by the ruled member 74 And the cardboard sheet S is cracked, resulting in a defective product.
[0009]
On the other hand, when a clear ruled line a is formed due to insufficient ruled pressure, if the ruled pressure is increased so that a normal ruled line a is formed, with a soft type rotary die cutter, 73, the edge of the cutting edge will penetrate deeply into the elastic body layer and damage the elastic body layer. On the other hand, in the case of a hard type rotary die cutter, the cutting edge of the punching blade strongly contacts the anvil and the surface of the blade edge or anvil The problem of damage. The damage is particularly severe when a stainless steel plate is wound.
[0010]
As described above, in the conventional die cutter, the punching blade 73 and the ruled member 74 are fixedly attached to one mold base, so that the cutting pressure by the punching blade 73 and the ruled pressure by the ruled member 74 are applied. It cannot be adjusted individually.
[0011]
Therefore, even if it is desired to finely adjust only the ruled pressure depending on the thickness (0.8 to 8 mm) and strength based on the type of the corrugated cardboard sheet S and the operation status of the apparatus, this is not possible, and the normal ruled line a Can not be formed, and it is necessary to manufacture the mold with high precision so that the height dimension of the punching blade 73 and the ruled member 74 has an appropriate difference. There was a problem of increased costs.
[0012]
Further, in the conventional case, in forming a punching line with a punching blade and forming a ruled line with a ruled member, it has not been possible to make the best use of the soft type and the hard type.
[0013]
The problem of the present invention is that the cutting pressure by the punching blade and the ruled pressure by the ruled member can be individually adjusted, and the soft type and the hard type are properly used in each of the punching cutting line and the ruled line formation. It is an object of the present invention to provide a die cutter for corrugated cardboard sheets that can be made.
[0014]
[Means for Solving the Problems]
In order to solve the above problems, in the present invention, a punching blade is pierced through a cardboard sheet conveyed one by one in one direction to form a punching cutting line having the same shape as the product, and a ruled member is provided. In a corrugated sheet die cutter having a processing section for pressing and folding a crease line, the processing section forms a crease forming section for forming a crease line on the corrugated cardboard sheet and a punching process for forming a punching cutting line on the corrugated board sheet. A first type base material support member, a first type base material attached to a part of the first type base material support member surface in a replaceable manner, and the first type base material support member, A ruled line member attached to the type 1 base material and forming on the cardboard sheet a folding ruled line extending in the transfer direction and a folding ruled line extending in a direction orthogonal to the transfer direction; and the first mold base Above material support member A first receiving member facing in a direction is provided, and a second mold base material support member and a second mold base material support member attached to a part of the second mold base material support member are replaceably attached to the punched portion. A mold base and a punching blade attached to the second mold base; A ruler member that is attached to the second mold base material and can re-press only a part of the ruled line formed by the ruler member attached to the first mold base material; A second receiving member is provided opposite to the second-type base material support member in the vertical direction so that the crease pressure by the crease member and the cutting pressure by the punching blade on the corrugated cardboard sheet can be independently adjusted. In Shi It has a configuration.
[0015]
As described above, by providing the crease forming part and the punching part independently, the crease pressure by the crease member and the cutting pressure by the punching blade can be individually adjusted. For this reason, even if the ruled pressure is adjusted, the cutting pressure is not affected, so that the cutting edge of the punching blade and the surface of the second receiving member that receives the cutting edge can be prevented. On the contrary, even if the cutting pressure is increased by reducing the sharpness of the punching blade, the ruled pressure by the ruled member is kept constant, so that the cardboard sheet can be prevented from cracking.
[0016]
Further, since the stamping pressure and the cutting pressure can be individually adjusted, it is necessary to strictly control the height dimension of the stamping member attached to the first mold base and the punching blade attached to the second mold base. Thus, it is possible to facilitate the manufacture of the first mold base and the second mold base.
[0018]
Here, the second type substrate In Barbed material Install Of the panels and flaps defined by the ruled lines, press only a part of the ruled lines that are the widths of the panels and flaps that are difficult to be bent mechanically. Like May be.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a rotary die cutter. The die cutter is a pair of upper and lower feed rolls 1 serving as a paper feed unit on a transfer path of a rectangular corrugated cardboard sheet S conveyed one by one in one direction, and the corrugated cardboard sheet S fed from and fed from the feed roll 1. A pair of upper and lower delivery rolls 20 for feeding the cardboard sheet S sent from the crease processing unit 10 to the downstream side, and the delivery thereof. A punching section 30 is provided for punching the corrugated cardboard sheet S fed from the roll 20.
[0020]
The crease forming unit 10 includes an anvil cylinder 11 as a first receiving member, and a mold base material support cylinder 12 as a first mold base material support member provided facing the lower side thereof. 12 is rotated in the direction of the arrow in FIG.
[0021]
Here, the anvil cylinder 11 acts to receive the ruled member 14 to be described later via the corrugated cardboard sheet S, and is provided with an elastic body layer such as urethane rubber on the outer periphery, or the outer periphery is, for example, chrome plated A steel hard type or a semi-hard type in which a metal plate such as a stainless steel plate is wound around the outer periphery may be used.
[0022]
A first mold base 13 made of an arc-shaped board is attached to a part of the outer periphery of the mold base support cylinder 12 in a replaceable manner with screws or the like not shown. As shown in FIG. 2, a ruled member 14 for pressing a corrugated cardboard sheet S to crease a folding ruled line is fixedly attached to the first mold base 13 so as to be implanted. The ruled member 14 is provided at a position corresponding to the ruled line of the product to be formed, and the ruled member 14 of the first mold base 13 shown in FIG. 2 corresponds to the ruled line a of the product A shown in FIG. It is provided in the position to do.
[0023]
As shown in FIG. 1, the punching unit 30 includes an anvil cylinder 31 as a second receiving member, and a mold substrate support cylinder 32 as a second mold substrate support member provided to face the lower portion, A pin cylinder 33 is provided in the lower part of the outer periphery of the mold base support cylinder 32.
[0024]
A second mold base 34 made of an arc-shaped board is attached to a part of the outer periphery of the mold base support cylinder 32 so as to be replaceable by screws or the like not shown. As shown in FIG. 3, a punching blade 35 that forms a punching / cutting line with respect to the corrugated cardboard sheet S and a plurality of cutting blades 36 are implanted on the outer periphery of the punching blade 35. It is fixed and installed.
[0025]
The shape of the punching blade 35 is the same as the contour of the product to be formed, and the punching cutting line having the same shape as the outer periphery of the product to be formed on the cardboard sheet S by piercing the cardboard sheet S. Form. The punching blade 35 of the second mold base 34 shown in FIG. 3 has the same shape as the contour of the product A shown in FIG. 6 (IV).
[0026]
The cutting blade 36 divides the outer punching waste b of the corrugated cardboard sheet S formed by the punching of the punching blade 35 into a plurality of pieces.
[0027]
Here, the anvil cylinder 31 when the corrugated cardboard sheet S is punched by the punching blade 35 and the cutting blade 36 may be the same soft type as described above, or the same hard type or semi-hard type. The anvil cylinder 31 acts to receive the punching blade 35 and the cutting blade 36. When punching with a soft type, an elastic body layer such as urethane rubber is provided on the outer periphery of the anvil cylinder 31, and the punching blade 35 is provided on the elastic body layer. In addition, when cutting with a hard type or a semi-hard type, the cutting blade 36 is bitten on the surface of a metal plate such as a chromium plating layer on the outer periphery of the anvil cylinder 31 or a stainless steel plate wound around the outer periphery. The cutting edges 35 and 36 are brought into contact with each other.
[0028]
The pin cylinder 33 is configured to separate a part of the outer punching scraps b that are sandwiched between the narrow portions of the punching blade 35 and rotate together with the second die base material 34 from the punching blade 35. For example, as described in Utility Model Registration No. 2502104, etc., it has been well known in the art, and the details thereof are omitted here.
[0029]
Now, the anvil cylinder 11 that is the first receiving member of the ruled portion 10 shown in FIG. 1, the mold base support cylinder 12 that is the first base support member, and the second receiving member of the punching portion 30. The anvil cylinder 31 and the mold substrate support cylinder 32 which is the second mold substrate support member are rotated in the direction indicated by the arrow in the figure, and the corrugated sheet S is fed by the pair of feed rolls 1 which are sheet feeding units. When paper is passed, when the corrugated sheet S passes between the anvil cylinder 11 and the mold base support cylinder 12 of the ruled section 10 where the interval is adjusted based on the thickness and strength of the corrugated cardboard sheet S and the type of paper used. Then, the ruled member 14 fixed to the first mold base 13 that is replaceably attached to a part of the outer periphery of the mold base support cylinder 12 pushes the corrugated cardboard sheet S with an appropriate ruled pressure, and FIG. (II) As shown, ruffled put the borders a for bending the corrugated sheet S.
[0030]
At this time, the space between the anvil cylinder 11 and the mold base support cylinder 12 is appropriately adjusted to obtain an appropriate crease pressure on the crease member 14, so that the crease line a is strongly put on the cardboard sheet S and the crease is formed. An appropriate ruled line “a” is ruled without causing the paper to be broken due to cracking or being weakly inserted and hindering folding.
[0031]
The corrugated cardboard sheet S after the crease is sent to the punching processing unit 30 at a timing by the feed roll 20 and is a second receiving member of the punching processing unit 30 whose interval is adjusted so as to appropriately cut the corrugated cardboard sheet S. When passing between the anvil cylinder 31 and the mold substrate support cylinder 32 which is the second mold substrate support member, the second mold substrate 34 is attached to a part of the outer periphery of the mold substrate support cylinder 32 in a replaceable manner. As shown in FIG. 6 (III), a punching cutting line c is put at a predetermined position by the punching blade 35 to form a product A, and an outer shape punching formed outside the punching cutting line c. The waste b is cut by the cutting blade 36. The waste piece b ′ formed by the division falls or is conveyed in the circumferential direction while being sandwiched between the punching blades 35, and only the product A shown in FIG. 6 (IV) is discharged downstream.
[0032]
At this time, since the distance between the anvil cylinder 31 and the mold base support cylinder 32 is appropriately adjusted to obtain an appropriate cutting pressure at the punching blade 35 and the cutting blade 36, the punching blade 35, the cutting blade 36 and the anvil cylinder are obtained. The damage to 31 is stopped to a minimum, and the cardboard sheet S is appropriately cut.
[0033]
The waste piece b ′ conveyed in the circumferential direction of the mold base support cylinder 32 is removed from between the punching blades 35 by the operation of the pin cylinder 33 at a position corresponding to the pin cylinder 33.
[0034]
In the die cutter shown in the embodiment, as described above, the crease line a is creased on the corrugated cardboard sheet S in the crease forming unit 10, and the punching cut line c is formed in the punching unit 30 to obtain the product A. Since it is formed and the crease and punching are performed independently, the crease pressure when the ruler member 14 presses the cardboard sheet S and the cutting pressure when the punching blade 35 punches the cardboard sheet S are formed. Can be adjusted individually, and by this adjustment, it is possible to always crease a normal and appropriate level of the ruled line a, and the cardboard sheet S can be punched reliably.
[0035]
Further, since the ruled pressure by the ruled member 14 and the cutting pressure by the punching blade 35 can be individually adjusted, the ruled member 14 attached to the first mold base 13 and the second mold base 34 are attached. Therefore, it is not necessary to strictly manage the dimensional difference between the punching blades 35 in the height direction, and as a result, the manufacture of the first mold base 13 and the second mold base 34 can be facilitated.
[0036]
In the rotary die cutter shown in FIG. 1, only the first mold base 13 and the second mold base 34 are removed from the mold base support cylinders 12 and 32 each time the production is switched to a different product by changing the lot. The mold base support cylinders 12 and 32 include the first mold base 13 to which the ruled member 14 having a predetermined shape corresponding to the product to be formed is attached and the second mold base 34 to which the punching blade 35 having the predetermined shape is attached. The mold base support cylinder 12 of the creasing section 10 and the mold base support cylinder of the punching section 30 so that an appropriate product can be obtained by applying a scoring process and a cutting process to a predetermined position of the corrugated cardboard sheet S. Both 32 cylinders are rotated with timing.
[0037]
In addition, since the 1st type | mold base material 13 and the 2nd type | mold base material 34 can be replaced | exchanged for a part of peripheral surface of the mold base support cylinders 12 and 32 with large circumference, the mold base support cylinder 12 Various sizes of products can be easily produced without replacing the 32 and 32. Further, the distance between the mold base support cylinders 12 and 32 and the anvil cylinders 11 and 31 is appropriately adjusted according to the thickness and strength of the cardboard sheet S and the type of paper to be used.
[0038]
In adjusting the distance between the cylinders, one of the mold base support cylinders 12 and 32 and the anvil cylinders 11 and 31 may be moved with respect to the other, or both may be moved relatively. .
[0039]
In the embodiment shown in FIG. 1, the mold base support cylinders 12 and 32 are provided below the anvil cylinders 11 and 31 in the crease forming unit 10 and the punching unit 30, respectively. , 31 and the mold base support cylinders 12, 32 may be arranged upside down.
[0040]
Here, examples of the corrugated cardboard sheets that are ruled and punched by the die cutter include a highly corrugated cardboard sheet S using a reinforced core and the like, and a relatively thick corrugated cardboard sheet S. In the case of such a corrugated cardboard sheet S, even if the distance between the anvil cylinder 11 and the mold base support cylinder 12 is adjusted, an appropriate ruled line can be formed by only one ruled process by the ruled member 14. If the interval between the cardboard sheets S is too small and the ruled member 14 is used to make a strong ruled line, the paper on the surface of the cardboard sheet S may be torn.
[0041]
As a countermeasure, here, the second mold base 37 shown in FIG. 4 is attached with the die base support cylinder 32 of the die cutter shown in FIG.
[0042]
The second mold base 37 is different from the second mold base 34 shown in FIG. 3 in that a ruler member 38 is provided inside the punching blade 35. It is arranged in the same shape as the ruled member 14 attached to the mold base 13.
[0043]
4 is attached to the mold base support cylinder 32 shown in FIG. 1 and the cardboard sheet S is creased and punched to thereby provide a ruled line attached to the second mold base 37. The member 38 pushes the ruled line a once formed by the ruled member 14 of the first mold base 13 again. At this time, the distance between the mold base support cylinders 12 and 32 and the anvil cylinders 11 and 31 can be appropriately adjusted.
[0044]
For this reason, even for a highly rigid corrugated cardboard sheet S using a reinforced core or the like or a relatively thick corrugated cardboard sheet S, the corrugated cardboard sheet S can be transferred from the corrugated cardboard sheet S to the box without causing tearing of the surface paper. It is possible to form a ruled line a having a degree suitable for bending when assembling.
[0045]
In the second mold base 37 shown in FIG. 4, the ruled lines formed in advance on the corrugated cardboard sheet S by the ruled member 14 of the first mold base 13 by the ruled member 38 attached to the second mold base 37 are used. Although it is pushed in again, only a part of the ruled line that is difficult to bend the previously formed ruled line may be pushed in again.
[0046]
For example, in the product A shown in FIG. 6 (IV), since the width of the joint flap F is small, when the joint flap F is mechanically bent, the joint flap F and the adjacent panel P ₁ In some cases, the joint flap F cannot be folded well along the ruled line a.
[0047]
For such products, joint flap F and panel P ₁ Only the ruled line a may be pushed again by the ruled member 38 attached to the second mold base 37.
[0048]
When forming a box product provided with a handle hole or a tearing cutting line (zipper), a punching blade for forming a handling hole or a punching blade for forming a tearing cutting line is used as the second die base material 34, However, instead of the second mold bases 34 and 37, these punching blades may be provided on the first mold base 13.
[0049]
FIG. 5 shows a second embodiment of a corrugated cardboard die cutter according to the present invention. In the flat plate type die cutter shown in this embodiment, the tip of the corrugated cardboard sheet S is held by a gripper 41 that moves together with the chain 40, and the corrugated cardboard sheet S is moved in one direction intermittently for a certain stroke by the movement of the chain 40. The crease forming unit 50 is provided at the first stop position of the corrugated cardboard sheet S, and the punching unit 60 is provided at the second stop position downstream thereof.
[0050]
The crease forming unit 50 is provided with a mold base support table 52 as a first mold base support member above a flat plate-shaped anvil 51 as a first receiving member, and a lower surface of the mold base support base 52 is provided. A flat plate-like first mold base 53 attached so that the ruled member 54 is implanted in a part thereof is attached by screws or the like so that the corrugated board sheet S is sent between the anvil 51 and the mold base support base 52. When stopping and moving the anvil 51 and the mold base support 52 in a direction approaching relatively with an appropriate stroke amount based on the thickness and strength of the cardboard sheet S, and the type of paper used, As in the case shown in FIG. 6 (II), the crease line a for folding is creased on the corrugated board sheet S with an appropriate crease pressure by the crease member 54 attached to the first mold base 53. Yes.
[0051]
The punching section 60 is provided with a mold base support table 62 as a second mold base support member above a flat plate-shaped anvil 61 as a second receiving member. A flat plate-like second mold base 63 attached so as to implant a punching blade 64 in the part is attached by screws or the like so that the corrugated cardboard sheet S is fed between the anvil 61 and the mold base support base 62. When stopped, the anvil 61 and the mold base support 62 are moved in a direction approaching relatively with an appropriate stroke amount based on the thickness and strength of the corrugated cardboard sheet S and the type of paper to be used, and the punching blade 64 Thus, the punching cutting line c is formed on the corrugated cardboard sheet S with an appropriate cutting pressure as in the case shown in FIG.
[0052]
In the flat plate type die cutter, when a lot change occurs, the first mold base 53 and the second mold base 63 are removed from the mold base support bases 52 and 62 having a wide lower surface, and a part of the lower surface is next removed. A first mold base 53 to which a ruled ruler 54 having a predetermined shape corresponding to a product to be formed is attached and a second mold base 63 to which a punching blade 64 of a predetermined shape is attached to the mold base support bases 52 and 62. Because it can be mounted, it can produce products of various sizes. Further, the amount of movement stroke in the vertical direction of each of the anvils 51 and 61 and the mold base support bases 52 and 62 is adjusted according to the thickness and strength of the corrugated cardboard sheet S to be fed and the type of paper to be used. The intervals at the time of the crease forming process and the cutting process on the cardboard sheet S are adjusted.
[0053]
Also in the above embodiment, since the crease processing and the punching process for the corrugated cardboard sheet S are separate, the crease pressure by the crease member 54 and the cutting pressure by the punching blade 64 can be adjusted appropriately. By the adjustment, it is possible to perform highly precise ruled processing and punching processing, and it is possible to facilitate the manufacture of the first mold base 53 and the second mold base 63.
[0054]
In the flat plate type die cutter according to the present invention, either the soft type or the hard type can be appropriately implemented in each of the crease forming unit 50 and the punching unit 60.
[0055]
In the second embodiment as well, the ruled line formed on the cardboard sheet S by the ruled line member 54 of the first mold base 53 so that the ruled line member is attached to the second mold base 63. One You may make it push in a part again.
[0056]
In the rotary die cutter shown in FIG. 1 and the flat plate type die cutter shown in FIG. 5, the punching portions 30 and 60 are arranged on the downstream side of the crease forming portions 10 and 50. The crease forming units 10 and 50 may be arranged on the downstream side of the units 30 and 60.
[0057]
However, since the corrugated cardboard sheet S is partially divided by the punching portions 30 and 60, the punching portions 30 and 60 are disposed downstream of the crease forming portions 10 and 50 as shown in FIGS. In addition, the conveyance of the corrugated cardboard sheet S after the division is reduced, and it is possible to smoothly convey the corrugated cardboard sheet S and to accurately perform the creasing process, and to perform the outline punching, when the creasing process is not performed after the division. It is also convenient for removing the waste b.
[0058]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0059]
(1) Since the crease process and the punching process are separately performed on the cardboard sheet, the crease pressure by the crease member and the cutting pressure by the punching blade can be individually adjusted. High accuracy and appropriate leveling and punching can be performed.
[0060]
(2) Since the crease pressure and the cutting pressure can be individually adjusted, it is not necessary to strictly control the height of the crease member and the punching blade, and the manufacture of the first mold base and the second mold base Can be facilitated.
[0061]
(3) Since only the ruled pressure can be finely adjusted according to the thickness and strength of the corrugated cardboard sheet and the operation status of the apparatus, a normal ruled line can be formed.
[0062]
(4) The first mold base material can be replaced with the first mold base material support member, and the second mold base material can be replaced with the second mold base material support member. Various products can be formed by a simple operation of replacing the first-type substrate and the second-type substrate.
[0063]
(5) Since the soft type and the hard type can be used properly in each of the formation of the punching and cutting lines and the ruled lines, the respective advantages can be utilized.
[0064]
(6) A ruled line is formed once by the ruled member of the first type substrate, with a ruled member attached to the second type substrate. One By pushing the part again with the ruled member of the second type base material, even on a highly corrugated cardboard sheet or a relatively thick corrugated cardboard sheet, without causing tearing of the paper on these surfaces, with high accuracy An appropriate degree of ruled line can be formed.
[Brief description of the drawings]
FIG. 1 is a front view showing a first embodiment of a die cutter according to the present invention.
FIG. 2 is a front view showing a first die base material of the die cutter shown in FIG.
FIG. 3 is a front view showing a second type substrate of the die cutter shown in FIG.
FIG. 4 is a front view showing another example of the second-type substrate.
FIG. 5 is a front view showing a second embodiment of a die cutter according to the present invention.
6 (I) to (IV) are perspective views showing the processing state of the corrugated board sheet in stages.
7A is a front view showing a conventional rotary die cutter, and FIG. 7II is a front view showing a mold base.
[Explanation of symbols]
S Cardboard sheet
a Ruled line
c Punching cutting line
10 Crease processing part
11 Anvil cylinder (first receiving member)
12 type substrate support cylinder (first type substrate support member)
13 First type substrate
14 Ruled material
30 Punching part
31 Anvil cylinder (second receiving member)
32 type base material support cylinder (second type base material support member)
34 Second mold base material
35 Punching blade
37 Type 2 base material
38 Ruled material
50 Folding section
51 Anvil (first receiving member)
52 type substrate support (first type substrate support member)
53 Type 1 base material
54 Ruled material
60 Punching part
61 Anvil (second receiving member)
62 type substrate support (second type substrate support member)
63 Second mold base material
64 Punching blade

Claims (1)

A processing section that pierces a corrugated cardboard sheet conveyed one by one in a direction to form a punching cutting line having the same shape as the product and presses a ruled member to crease a folding ruled line. In the corrugated cardboard die cutter, the processing section includes a crease forming section for forming a ruled line on the corrugated cardboard sheet, and a punching processing section for forming a punching cutting line on the corrugated cardboard sheet. A type 1 base material support member, a first type base material removably attached to a part of the surface of the first type base material support member, a first type base material attached to the corrugated cardboard sheet, A folding ruled line extending in the transfer direction, a ruled line member forming a folding ruled line extending in a direction orthogonal to the transfer direction, and a first receiving member opposed to the first base material support member in the vertical direction Is provided And a second type base material support member, a second type base material attached to a part of the second type base material support member surface in a replaceable manner, and the second type base material. A punching blade, a ruled member attached to the second mold base, and a ruled member capable of pressing again only a part of the ruled line formed by the ruled member attached to the first mold base, A second receiving member is provided opposite to the second-type substrate support member in the vertical direction so that the crease pressure by the crease member and the cutting pressure by the punching blade can be independently adjusted with respect to the corrugated cardboard sheet. A die cutter for corrugated cardboard sheets.

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