JP3042730U - Ruled line formation - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To prevent the deviation of the ruled line position on the paper container assembly plate material due to the positional deviation of the ruled line forming body, and to prevent the paper container assembly plate material on which the cut lines and the ruled lines are formed from being uneven during transportation A ruled line forming body that can prevent a ruled line from cracking near the ruled line. SOLUTION: The corrugated cardboard sheet 12 is formed on the upper surface of a rectangular ruled line forming member 2 whose cross-sectional shape has a rounded corner on the front surface side by a flat part 5 and a ruled pressing blade 7 having a width wider than the thickness of the ruled pressing blade 7. Is squeezed to form the ruled line 14.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a ruled line forming body for forming an accurate ruled line on a corrugated cardboard sheet, which becomes a fold line during manufacturing.

[0002]

[Prior art]

 Conventionally, when manufacturing a corrugated board container or the like, as shown in FIG. 5, a plan view of a corrugated board material 101 to which two blanks 100a and 100b are allocated is first shown on the corrugated board material 101. The cutting line 102 is formed by the punching-type cutting blade, and the ruled line 103 is formed by the ruled pressing blade, and then the gripping claw 105 that grips one side 104 of the corrugated board board material 101 carries it in the A direction which is the passing direction. After being sent and the shaded portion 106 is dropped, the glue margin piece 107 is attached to the attaching portion corresponding to the glue margin piece 107 using a suck machine or the like to form a body.

When forming this body, the ruled lines 103 are first ruled line 103a, second ruled line 103b, third ruled line 103c, and fourth ruled line 103d in order from the glue margin piece 107. The 103b and the 4th ruled line 103d are bent at 180 °. In this case, in order to make the second ruled line 103b and the fourth ruled line 103d accurate and useful for folding, a tape-like ruled line forming body that forms a ruled line in cooperation with a ruled blade is used as the lower mold plate surface. Sticked on top.

FIG. 6A is a sectional view showing a state in which ruled lines are formed using this type of conventional ruled line forming body 110. In the example of FIG. 6A, two groove forming members 112 are fixed in parallel to each other on the surface of the base sheet 111 at regular intervals, and the ruled groove is formed between the two groove forming members 112. 113 is formed. The back surface of the base sheet 111 is attached to a lower die (receiving die) board surface 115 via a pressure sensitive adhesive layer 114. In the ruled line forming body 110 thus configured, the corrugated board plate material 118 is installed between the ruled line forming groove 110 and the ruled line pressing blade 117 mounted on the upper mold (pressing mold) 116 so as to face the ruled line pressing groove 113. The corrugated board material 118 is sandwiched between the ruled blade 117 and the ruled line forming body 110, so that the corrugated board 119 is formed on the surface of the corrugated board material 118.

[0005]

[Problems to be solved by the device]

 However, when the upper liner 118a of the corrugated board material 118 is folded up to 180 ° with the ruled line formed as described above as the fold, when it is bent over 120 ° or more, it goes from the outside to the inside. Force is generated, and the upper mold side liners 118a start to interfere with each other. Therefore, there is a problem that a bent portion is formed at another position and the bending becomes uncertain. Further, the corrugated board material 118 in which the ruled lines are formed using the ruled line forming body 110 has the upper die side liner 118a which is embossed as shown in FIG. 6 (b) showing a plan view of the corrugated board material 118. Since it is strongly pulled by the blade 117, there is a problem that a ruled line crack 119a occurs near the ruled line.

Therefore, in order to solve the above-mentioned problem that the bending becomes uncertain, the applicant of the present application has proposed in Japanese Patent Application No. 9-59204, a convex receiving portion having substantially the same width as the ruled blade. There is proposed a ruled line forming body 120 having (FIG. 7A). When the corrugated board material having the ruled lines formed using the ruled line forming body 120 is conveyed in the A direction (the same direction as the ruled line forming body 120) by the gripping claws 105 as described above, the corrugated board forming material 101 Since the cut-out line formed in FIG. 7 may be point-contacted and caught by the convex receiving portion, FIG. 7B is a plan view of the ruled line forming body 120, and FIG. 7C is a side view of the ruled line forming body 120. As shown, the edge portion of the ruled line forming body 120 is cut off obliquely.

However, when the corrugated board material to which the ruled lines and the cutout lines formed by the ruled line formation body 120 are assigned is conveyed in the B direction crossing the ruled line formation body 120, the cutout lines of the formation of the ruled line formation body 120. The convex receiving portion 121 is widely line-contacted and caught, and the position of the ruled line forming body 120 attached on the lower mold plate surface 115 is displaced. As shown in FIG. 8, the corrugated board material 101 is sandwiched between the ruled blade 117 and the end of the receiving portion 121, as shown in FIG. Therefore, there is a new problem that the position of the formed ruled line is displaced.

Further, when the corrugated board material 101 is conveyed in the direction B, the cutout line formed on the corrugated board material 101 is caught in the receiving portion 121, and the cut portion of the corrugated board material 101 is scattered. However, there is also a problem that the gripping claw 105 is disengaged from the corrugated board material 101, and the rate of variation increases and the operation is frequently stopped. Due to the function of the ruled line forming body 120, it is impossible to largely chamfer the convex portions of the ruled line forming body.

The present invention has been made in order to solve such a problem, and prevents the shift of the ruled line position on the paper container assembly plate material due to the shift of the ruled line forming body and forms the cut lines and the ruled lines. It is an object of the present invention to provide a ruled line forming body in which the plate material for assembling a paper container does not loosen during transportation and can prevent the ruled line from breaking near the ruled line.

[0010]

[Means for Solving the Problems and Functions / Effects]

 In order to achieve the above-mentioned object, the ruled line forming body according to the first invention forms a ruled line for folding a paper container assembly plate material at a required angle in cooperation with a ruler blade to form a ruled line formation member on the paper container assembly plate material. The corner portion on the front surface side is rounded or chamfered, and is formed in a substantially rectangular cross section wider than the width of the ruled blade.

In the first invention, for example, a step is provided between the ruled blade and a ruled line forming body having a substantially rectangular cross section, which is installed at a position facing the ruled blade and is wider than the width of the ruled blade. A sheet material for assembling a paper container, such as a ball sheet, is installed, and the thickness of the sheet material for assembling a paper container is compressed by the ruled pressing blade and the flat portion on the upper surface of the ruled line forming body. Thus, one ruled line is formed by the ruled pressing blade on one surface side of the paper container assembly plate material, and the thickness of the paper container assembly plate material is widely crushed. The paper container assembly board with the ruled lines formed in this way has a clear folding branch line and is widely crushed, so that the force from the outside to the inside of the paper container assembly board is increased. It is possible to fold it exactly according to the ruled line.

[0012] The above-mentioned sheet material for assembling a paper container is conveyed to the next step after the ruled lines as described above are formed and the cut lines of a predetermined shape are formed at the same time. Even if the ruled line forming body is caught by the cut line during this transportation and the position of the ruled line forming body is displaced, the width of the flat surface of the upper surface of the ruled line forming body is set to be wider than the width of the ruled blade. The sheet material for assembling the paper container can be pinched by the ruled blade and the flat surface of the upper surface of the ruled line forming body. Therefore, there is an effect that the formed ruled lines are not displaced and the ruled lines can be accurately formed on the paper container assembly plate material.

Further, in the first aspect of the invention, since the ruled line forming body has a substantially rectangular cross section in which the corner portion on the front surface side is rounded or the corner portion is chamfered, the cut line forms the ruled line formation. The effect of being able to move smoothly on the body and not to be caught is prevented.

As described above, since the plate material for assembling the paper container is prevented from being caught by the ruled line forming body, the height of the ruled line forming body can be increased. For this reason, when forming the ruled lines, the front and back surfaces of the paper container assembly plate material are pulled and compressed at the same time, so the amount of tension on the paper container assembly plate material surface on the ruler pressing blade side can be reduced, and one side of the plate material is It is possible to prevent the creases from breaking near the creases by pulling only the creases.

Next, the ruled line forming body according to the second invention is a ruled line forming body for forming a ruled line for folding a paper container assembly plate material at a desired angle in cooperation with a ruler pressing blade on the paper container assembly plate material. The corner of the front side of the base sheet is rounded or chamfered at the center of the surface, and the convex receiving section has a rectangular cross section with a width wider than the width of the ruled blade. Is provided.

In the second invention, for example, a corrugated board blade is provided between the ruled blade and a convex receiving portion provided at a position facing the ruled blade and substantially in the center of the surface of the base sheet. A paper container assembling plate material such as a sheet is installed, and the thickness of the paper container assembling plate material is compressed by the ruled pressing blade and the flat surface of the upper surface of the receiving portion. In this way, one ruled line is formed by the ruled pressing blade on one surface side of the paper container assembly plate material, and the thickness of the paper container assembly plate material is widely crushed. The paper container assembly plate with the ruled lines formed in this way has a clearly defined folding branch line and is crushed widely, so that the paper container assembly plate material goes from the outside to the inside. Since it does not occur, it can be bent accurately according to the ruled line.

In such a paper material for assembling a paper container, the ruled lines as described above are formed, and at the same time, a cutout line having a predetermined shape is formed and conveyed to the next step. Even if the ruled line formation body is caught by the scoring line during this transportation and the position of the ruled line formation body is displaced, the width of the flat surface on the top of the receiving part is set wider than the width of the ruled line cutting blade. The plate member for assembling the paper container can be pinched by the blade and the flat portion on the upper surface of the receiving portion. Therefore, it is possible to prevent the position of the ruled line formed on the paper container assembly plate material from being displaced due to the paper container assembly plate material being sandwiched by the end of the receiving portion and the ruled blade. .

Further, in the second invention, since the corner portion on the surface side of the convex receiving portion is rounded or the corner portion is chamfered to have a substantially rectangular cross section, the cutout line is the same. It is possible to smoothly move on the convex receiving portion and prevent it from being caught without being caught.

As described above, since the plate material for assembling the paper container is prevented from being caught by the ruled line forming body, the height of the ruled line forming body can be increased. For this reason, when forming the ruled lines, the front and back surfaces of the paper container assembly plate material are pulled and compressed at the same time, so the amount of tension on the paper container assembly plate material surface on the ruler pressing blade side can be reduced, and one side of the plate material is It is possible to prevent the creases from breaking near the creases by pulling only the creases.

[0020]

[Embodiment of the invention]

 Next, a specific embodiment of the ruled line forming body according to the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of a ruled line forming body according to a first embodiment of the present invention.

In the ruled line forming body 1 of the first embodiment, a rectangular ruled line forming member 2 whose cross-sectional shape has a rounded corner on the front surface side, and a back surface of this ruled line forming member 2 when not in use Is formed by providing a pressure-sensitive adhesive layer 4 coated with a release paper 3 for. The flat surface portion 5 on the upper surface of the ruled line forming member 2 is formed wider than the thickness of the ruled blade 7 (see FIG. 2) and is covered by the ruled line setting guide 6 having a concave cross section.

The width of the ruled line setting guide 6 is substantially the same as the width of the flat surface portion 5 on the upper surface of the ruled line forming member 2, and the central portion of the upper surface is located at a position facing the substantially central portion of the ruled line forming member 2. A set groove 8 having substantially the same width as the thickness of the set ruled line pressing blade 7 (see FIG. 2) is formed. Further, a double-sided tape 9 having different adhesive strengths on the front and back is attached to the lower surface of the ruled line setting guide 6, and the double-sided tape 9 fixes the ruled line setting guide 6 to the flat surface portion 5 on the upper surface of the ruled line forming member 2. The state is maintained. The double-sided tape 9 is preferably used so that the surface having strong adhesive strength is on the ruled line setting guide 6 side and the surface having weak adhesive strength is on the ruled line forming member 2 side. The ruled line forming member 2 and the ruled line setting guide 6 configured as described above are configured as an elongated body extending in a direction orthogonal to the paper surface, and cut into an appropriate length for use. On the other hand, as shown in FIG. 2, the ruled blade 7 is attached to an upper die (push die) 10 formed of plywood.

When using the ruled line forming body 1 of the first embodiment, as shown in FIG. 2, the tip of the ruled line pressing blade 7 is fitted into the setting groove 8 of the ruled line setting guide 6, and in this state the ruled line forming member 2 If the lower die plate surface 11 is struck on the upper die 10 equipped with the ruler pressing blade 7 while the release paper 3 on the back surface of the die is removed and the pressure sensitive adhesive layer 4 is exposed, the ruled line forming body 1 becomes the lower die plate surface. 11 is fixed at a predetermined position. Next, when the lower die plate surface 11 is operated and lowered, the ruled line setting guide 6 is separated from the ruled blade 7 while being fixed on the ruled line forming body 1. Thereafter, the ruled line setting guide 6 is lifted and removed to remove the double-sided tape 9 together with the ruled line setting guide 6 from the ruled line forming body 1. In this way, the ruled line forming body 1 is installed on the lower die plate surface 11 at a position facing the ruled line pressing blade 7.

In this way, the creases are formed on the corrugated cardboard sheet (paper material for board assembly) 12 by the ruled line forming body 1 installed on the lower mold board surface 11 and the ruler pressing blade 7 of the upper mold 10. A cross-sectional view showing the state is shown in FIG. Further, FIG. 3B shows a sectional view of the corrugated cardboard sheet 12 in which the creases are formed by using the ruled linear assembly 1. As shown in FIG. 3A, after the corrugated board sheet 12 is installed between the lower mold plate surface 11 and the upper mold 10, the lower mold plate surface 11 and the upper mold 10 are brought close to each other to form a ruled line forming member. 2 The flat line portion 5 on the upper surface and the ruled line pressing blade 7 pinch each other to form a ruled line 13.

Thus, as shown in FIG. 3B, the core of the corrugated cardboard sheet 12 is widely crushed by the ruled line forming body 1, and at the same time, the upper die side liner 12 a of the corrugated cardboard sheet 12 has a ruler pressing blade 7. The ruled line 13 is formed by. The corrugated board sheet 12 on which the ruled lines 13 are formed as described above is bent so that the ruled lines 13 are inside. In this way, the resistance of the corrugated cardboard sheet 12 when it is widely crushed and bent is suppressed, so that the corrugated cardboard sheet 12 can be accurately bent along the ruled lines 13.

As described above, the ruled lines 13 are formed on the corrugated cardboard sheet 12, and at the same time, a cutting line (not shown) provided on the upper mold 10 forms a cut line in the developed shape of the body. . In this way, the corrugated board sheet 12 on which the ruled lines 13 and the cut lines are formed is conveyed to the next step, but when the passing direction is a direction crossing the ruled line formation body 1, the cut lines are caught on the ruled line formation body 1. The position of the ruled line forming body 1 may be displaced. As described above, even if the ruled line forming body 1 is slightly moved and the relative position with respect to the ruled line forming blade 7 is deviated, the flat surface portion 5 of the upper surface of the ruled line forming member 2 has a flat surface sufficiently wider than the width of the ruled line forming blade 7. Therefore, the corrugated cardboard sheet 12 can be pinched by the ruled blade 7 and the flat portion 5 on the upper surface of the ruled line forming member 2. Therefore, it is possible to prevent the corrugated cardboard sheet from being sandwiched between the end portion of the receiving portion and the ruled line pressing blade and the position of the ruled line forming position being displaced as in the conventional example due to the displacement of the relative positions of the ruled line forming member 2 and the ruled line pressing blade 9. be able to.

Further, since the ruled line forming member 2 has a rounded corner on the front surface side, the cutout line formed on the corrugated ball sheet 12 is caught by the ruled line forming body 1 and the corrugated ball sheet 12 is uneven. Can be prevented. Furthermore, since the catching of the corrugated ball sheet 12 is suppressed as described above, the height of the ruled line forming body 1 can be increased. Therefore, when forming the ruled line, both the upper die liner 12a and the lower die liner 12b of the corrugated cardboard sheet 12 are pulled and the corrugated ball sheet 12 is compressed, so that the pull amount of the upper die liner 12a can be reduced. , It is possible to prevent the ruled line from breaking near the ruled line. The height of the ruled line forming body 1 can be appropriately set according to the thickness and material of the corrugated board sheet.

In the first embodiment, the cross-sectional shape is formed only by the rectangular ruled line forming member 21 having the corners with rounded corners, but the corner may be chamfered to have a substantially rectangular cross-section. It can be appropriately set depending on the material, thickness, and the like.

In the first embodiment, the width of the ruled line setting guide 6 is substantially the same as the width of the flat surface portion 5, but it may be smaller than the width of the flat surface portion 5. In this case, a bonding tape such as cellophane tape may be adhered to the upper surface of the ruled line setting guide 6 and the flat surface portion 5 of the upper surface of the ruled line forming member 2 to fix the ruled line setting guide 6 and the ruled line forming member 2 together. Good.

Next, in the ruled line forming body 20 according to the second embodiment, as shown in the sectional view of the ruled line forming body 20 in FIG. 4, the base sheet 21 and the surface of the base sheet 21 are substantially It is formed by the convex receiving portion 22 provided in the central portion. The cross-sectional shape of the receiving portion 22 is a rectangular shape having a rounded front side corner portion, and is set narrower than the width of the base sheet 21. A pressure sensitive adhesive layer 24 covered with a release paper 23 for protection when not in use is provided on the back surface of the base sheet 21. The receiving portion 22 is covered with a ruled line setting guide 25 having an H-shaped cross section.

The width of the ruled line setting guide 25 is smaller than the width of the base sheet 21 and larger than the width of the receiving portion 22, and the insertion groove formed in the central portion of the lower surface of the ruled line setting guide 25. 26 is formed in a rectangular cross section having a height and a width that are substantially equal to the height and thickness of the receiving portion 22, respectively, and the bottom surface of the entry groove 26 is in contact with the upper surface 22 a of the receiving portion 22. Further, the lower surfaces on both sides of the entry groove 26 are formed so as to contact the surfaces of the base sheet 21 on both sides of the receiving portion 22. On the other hand, in the central portion of the upper surface of the ruled line setting guide 25, as in the first embodiment, a set groove 27 having a width substantially the same as the thickness of a ruled blade (not shown) is formed. The width of the receiving portion 22 is set to be sufficiently thicker than the width of the ruled line pressing blade (not shown).

The ruled line forming body 20 and the ruled line setting guide 25 configured as described above are provided with a joining tape 28 such as cellophane tape on the surface of the base sheet 21 and the upper surface of the ruled line setting guide 25. The receiving portion 22 is fixed so that the state in which the receiving portion 22 is fitted into the insertion groove 26 is maintained. As in the first embodiment, the ruled line forming body 20 is configured as a long body extending in a direction orthogonal to the plane of the drawing, and is cut to an appropriate length for use.

In such a ruled line forming body 20, as in the first embodiment, the tip of a ruled line pressing blade (not shown) is fitted into the set groove 27 of the ruled line setting guide 25, and in this state the base sheet 2 The release paper 4 on the back surface of is removed to expose the pressure-sensitive adhesive layer 5, and the ruled line forming body 20 is fixed to a predetermined position on the lower mold plate surface (not shown). Then, after separating the ruled line pressing blade from the ruled line setting guide 25, the joining tape 29 that has stabilized the ruled line setting guide 25 is peeled off and the ruled line setting guide 25 is lifted and removed to form a ruled line composition. 20 is installed on the lower mold plate surface.

Using the ruled line forming body 20 configured as described above, the corrugated ball sheet is pinched by the upper surface 22a of the receiving portion 22 and a ruled pressing blade (not shown) as in the first embodiment. Ruled lines are formed. Thus, the second embodiment exhibits the same operation and effect as the first embodiment.

In the second embodiment, the shape of the receiving portion 3 is a rectangular cross section with a rounded corner portion, but it may be a substantially rectangular cross section with a chamfered corner portion. It can be appropriately set according to the thickness and the like.

In the second embodiment, the ruled line setting guide 6 and the ruled line forming body 1 are fixed by the joining tape 10, but not limited to the joining tape, but fixed by the double-faced tape having different adhesive strengths on the front and back sides. You may. In this case, it is preferable to use the surface having the strong adhesive strength on the ruled line setting guide 6 side and the surface having the weak adhesive strength on the ruled line forming body 1 side.

[Brief description of the drawings]

FIG. 1 is a sectional view of a ruled line forming body according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a state where the ruled line forming body of the first embodiment is set on a ruled blade.

FIGS. 3A and 3B are a cross-sectional view showing a state in which ruled lines are formed on a corrugated cardboard sheet, and a cross-sectional view of a corrugated cardboard sheet in which ruled lines are formed.

FIG. 4 is a sectional view of a ruled line forming body according to a second embodiment.

FIG. 5 is a plan view of a cardboard board material.

FIG. 6 is a sectional view (a) showing a state in which a ruled line is formed using a conventional ruled line forming body, and a plan view (b) of a corrugated cardboard plate material on which a ruled line is formed.

FIG. 7 is a perspective view (a) of a ruled line forming body of the prior application, a plan view (b) and a side view (c) showing a state where an edge portion of the ruled line forming body is cut off.

FIG. 8 is a cross-sectional view illustrating a problem in forming a ruled line using the ruled line former of the prior application.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ruled line forming body 2 Base sheet 3 Receiving part 6 Ruled line setting guide 7 Entrance groove 8 Set groove 9 Ruled blade 10 Joining tape 11 Upper mold 12 Lower mold board 13 Corrugated cardboard sheet 14 Ruled line

Claims (2)

[Utility model registration claims] 1. A ruled line forming body for forming a ruled line for folding a paper container assembling plate material at a required angle in cooperation with a ruler pressing blade on the paper container assembling plate member, wherein a corner is provided on the front surface side. A ruled line forming body, characterized in that it is provided with a chamfer or a corner portion and is formed in a substantially rectangular shape having a width wider than the width of the ruled pressing blade. 2. A ruled line forming body for forming a ruled line for folding a paper container assembling plate material at a required angle in cooperation with a ruler pressing blade on the paper container assembling plate material, and at a substantially central portion of the surface of the base sheet. A ruled line forming body, characterized in that a corner portion on the front surface side is rounded or chamfered, and a convex receiving portion having a substantially rectangular cross section having a width wider than the width of the ruled pressing blade is provided.