CN209756224U

CN209756224U - die cutting plate for forming corrugated case

Info

Publication number: CN209756224U
Application number: CN201920587401.XU
Authority: CN
Inventors: 向平
Original assignee: Sichuan Hangruiheng Paper Packaging Co Ltd
Current assignee: Sichuan Hangruiheng Paper Packaging Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2019-12-10
Anticipated expiration: 2029-04-26

Abstract

A die cutting board for corrugated case forming is provided, thereby improving the forming quality of the corrugated case, controlling the compression strength attenuation variable of the corrugated case and meeting the special requirements of functional windows, bonding surfaces, hand-buckled chain lines and the like; the die cutting machine comprises an upper die cutting roller and a lower die cutting roller which are matched up and down, wherein a high-strength rubber pad is sleeved outside the upper die cutting roller, a die cutting plate is mounted on the lower die cutting roller, a first serrated knife line and a first pressing line which are used in a combined mode are fixed on the die cutting plate, a cushion block located at the bottom of the first serrated knife line and the bottom of the first pressing line is arranged in the die cutting plate, a first rubber pad located around the first serrated knife line and the first pressing line is arranged on the outer side of the die cutting plate, a first platform is arranged on the first rubber pad, and a second rubber pad is arranged on the first platform; the utility model discloses the structure is ingenious, can promote corrugated box's shaping quality, reduces the damage volume after the corrugated box shaping.

Description

Die cutting plate for forming corrugated case

Technical Field

The utility model relates to a corrugated paper packing box production facility technical field especially relates to a be used for fashioned die-cut board of corrugated box.

Background

the corrugated case, especially a production machine sealing case (general food, automatic filling and automatic sealing of a beverage production line), nailing (gluing) case and the like, needs to be subjected to die cutting according to the unfolding process size of the corrugated case to determine the length, width, height or line pressing forming of the case (as shown in figure 1);

the equipment and method adopted by all current carton factories to produce corrugated cartons shown in figure 1 are as follows: the full-automatic flat die cutting machine is characterized by comprising a circular die cutting machine (unit), a circular flat die cutting machine, a flat impression die cutting machine (commonly known as a tiger machine), a full-automatic flat die cutting machine and the like, wherein a flat die cutting plate or a circular flat die cutting plate is designed correspondingly, but the circular flat die cutting machine and the full-automatic flat die cutting machine have advantages and disadvantages; the full-automatic platen die-cutting machine and the platen marking machine have high precision, good molding quality and low efficiency; the circular die cutting machine has high efficiency, but has poor die cutting precision, and the forming quality is slightly inferior to that of a flat pressing flat die cutting machine; the selection of the die cutting forming mode is determined according to the specific existing equipment and customer requirements of the company and the corrugated case containers;

The raw materials required for manufacturing the flat-pressing die-cutting plate or the circular-pressing circular die-cutting plate generally comprise a circular template, a flat template, knife lines (called die cutters, and knife lines selected by die-cutting paper products of different materials or thicknesses are different), line pressing knives (called indentation knives, single-end lines, double-end lines, round-head lines, flat-end lines, sharp-end lines and the like), tooth knife lines (point knife lines, ripple knives and the like, and simultaneously 1 × 1, 3 × 3, 5 × 5, 8 × 8, 10 × 10 and the like), bottom rubber pads, rebound rubber, sponge rubber strips and the like;

The forming quality and the compressive strength index of the corrugated case are directly influenced by the die cutting precision and the indentation quality of the corrugated case, which are problems that all corrugated case factories must face, so the corrugated case die cutting process design, the die cutting plate design and the selection of various knife lines, indentation lines, toothed knives, elastic materials and the like are particularly important.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model aims at providing a be used for fashioned die cutting board of corrugated box to promote corrugated box's shaping quality, control corrugated box compressive strength decay variable and satisfy special requirements such as functional window, bonding surface, hand buckle dot-dash line.

The technical scheme for solving the problems is that a die cutting plate for forming corrugated cartons comprises an upper die cutting roller and a lower die cutting roller which are matched up and down, a high-strength rubber mat is sleeved outside the upper die cutting roller, a die cutting plate is installed on the lower die cutting roller, a first serrated knife line and a first pressing line which are used in a combined mode are fixed on the die cutting plate, the installation direction of the first serrated knife line and the first pressing line is perpendicular to the axis of the lower die cutting roller, a cushion block located at the bottom of the first serrated knife line and the bottom of the first pressing line is arranged in the die cutting plate, an upper welding spot and a lower welding spot are arranged between the first serrated knife line and the first pressing line, the upper welding spot and the lower welding spot are used for keeping the first serrated knife line and the first pressing line parallel, a first rubber mat located around the first serrated knife line and the first pressing line is arranged on the outer side of the die cutting plate, a first platform is arranged on the first rubber mat, and a second rubber mat is arranged on the.

the utility model discloses the structure is ingenious, can promote corrugated box's shaping quality, reduces the damage volume after the corrugated box shaping.

Drawings

Fig. 1 is a schematic diagram of a prior art die cutting process for corrugated boxes.

Fig. 2 is a schematic view of the corrugated carton die-cutting process of the present invention.

Fig. 3 is a schematic view of a prior art diecutting plate crimping tool.

Fig. 4 is a schematic view of a die cutting plate tooth cutter wire structure in the prior art.

fig. 5 is a schematic view of the combined structure of the middle die cutting plate line pressing knife and the tooth cutter line of the present invention.

Fig. 6 is an enlarged schematic view of a portion a in fig. 3.

Fig. 7 is an enlarged schematic view of a portion B in fig. 4.

fig. 8 is an enlarged schematic view of the portion C in fig. 5.

fig. 9 is an enlarged schematic view of the combined structure of the medium voltage line knife and the non-equidistant tooth line knife of the present invention.

fig. 10 is an enlarged schematic view of the combination structure of the medium voltage line knife and the equidistant tooth knife line of the present invention.

Fig. 11 is a schematic diagram of the structure of the middle narrow equidistant toothed cutting line of the present invention.

Fig. 12 is a schematic diagram of the structure of the medium-width equidistant-toothed cutting line of the present invention.

Fig. 13 is a schematic structural view of the non-equidistant tooth knife lines (wide and narrow alternate pitch tooth knife lines) of the present invention.

Detailed Description

The following describes the present invention in further detail with reference to fig. 1 to 13.

As can be seen from fig. 1 to 13, a die cutting plate for corrugated carton forming comprises an upper die cutting roller 3 and a lower die cutting roller 4 which are vertically matched, a high-strength rubber mat 2 is sleeved outside the upper die cutting roller 3, a die cutting plate 5 is installed on the lower die cutting roller 4, a first serrated knife line 9 and a first pressing line 10 which are used in combination are fixed on the die cutting plate 5, the installation direction of the first serrated knife line 9 and the first pressing line 10 is perpendicular to the axis of the lower die cutting roller 4, a cushion block 12 which is positioned at the bottom of the first serrated knife line 9 and the bottom of the first pressing line 10 is arranged in the die cutting plate 5, an upper welding point 11 and a lower welding point 13 are arranged between the first serrated knife line 9 and the first pressing line 10, the upper welding point 11 and the lower welding point 13 are used for keeping the first serrated knife line 9 and the first pressing line 10 parallel, a first rubber mat 6 which is positioned around the first serrated knife line 9 and the first pressing line 10 is arranged outside the die cutting plate 5, and a first flat table 6-2 is arranged on the first rubber mat 6, the first platform 6-2 is provided with a second rubber mat 14.

the first serrated knife line 9 comprises a first knife tip 9-1 and a first knife bottom 9-2, the distance between the first knife tip 9-1 and the first knife bottom 9-2 is H3, the distance between the end face of the first pressing line 10 and the first knife bottom 9-2 is H1, and the width of the first pressing line 10 is B2.

The first serrated knife lines 9 comprise narrow equidistant serrated knife lines 8.1, wide equidistant serrated knife lines 8.2 and non-equidistant serrated knife lines 8.3.

The narrow equidistant tooth tool line 8.1 comprises a second tool nose 8.1-1 and a second tool bottom 8.1-2, the wide equidistant tooth tool line 8.2 comprises a third tool nose 8.2-1 and a third tool bottom 8.2-2, and the non-equidistant tooth tool line 8.3 comprises a fourth tool nose 8.3-1 and a fourth tool bottom 8.3-2.

As shown in figure 1, the developed die-cutting process diagram of a corrugated case comprises a corrugated case 1, a case tongue 1-12, a first tongue dot-dash line 1-3 (dot-dash lines are also commonly called as glue-dispensing lines), a first tongue fold line 1-1, an inner side rocking cover 1-9, a first inner rocking cover fold line 1-2, a first inner rocking cover dot-dash line 1-4, a corrugation direction 1-11, an outer rocking cover 1-13, an outer rocking cover fold transverse line 1-14 and a side mark 1-15 (a side mark fold transverse line 1-16 is arranged on the side mark).

As shown in FIG. 2, the utility model discloses in corrugated box after the improvement expand the cross cutting process diagram, corrugated box 1, carton tongue 1-12 and second tongue dot-and-dash line 1-7, second tongue broken line 1-5, inboard shake lid 1-9 and second in shake lid broken line 1-6, shake in the second dot-and-dash line 1-8, flute direction 1-11, shake lid 1-13 and shake lid broken line 1-14 outward, side mark 1-15 (have side mark broken line 1-16 on).

As shown in fig. 3, a schematic structural diagram of a die cutting plate line pressing cutter in the prior art includes an elastic rubber pad 2, an upper die cutting roller 3, a lower die cutting roller 4, a die cutting plate 5, a first rubber pad 6 (on which a second platform 6-1 is provided), and a second line pressing strip 7 (as shown in fig. 1, a first inner rocking cover folding line 1-2 of an inner rocking cover 1-9 is rolled).

As shown in fig. 4, a schematic diagram of a die-cutting plate tooth cutter line structure in the prior art includes a high-strength rubber mat 2, an upper die-cutting roller 3, a lower die-cutting roller 4, a die-cutting plate 5, a first rubber mat 6 (on which a second platform 6-1 is provided), and a second tooth cutter line 8;

As shown in fig. 5, the schematic view of the improved structure of the die cutting plate crimping tool and the tooth cutter line of the present invention includes a high-strength rubber pad 2, an upper die cutting roller 3, a lower die cutting roller 4, a die cutting plate 5, a first rubber pad 6 (having a first platform 6-2 thereon), a first tooth cutter line 9 (also called as a dot-dash line, a point cutter line) having a first cutter point 9-1, a first cutter bottom 9-2, a first crimping line 10 (an upper welding point 11 and a lower welding point 13 between the first tooth cutter line 9), a cushion block 12, and a second rubber pad 14;

As shown in fig. 6, for the schematic view of the combined structure of the medium voltage line cutter and the tooth cutter line of the present invention, the structure is illustrated in fig. 5, when rolling the second tongue folding line 1-5 of the tongue 1-12 shown in fig. 2, the combination of the non-equidistant tooth cutter line 8.3 and the first voltage line 10 shown in fig. 9 is adopted, and the combination of the equidistant tooth cutter line and the first voltage line 10 is adopted for rolling the second inner rocking cover folding line 1-6 of the inner rocking cover 1-9 simultaneously.

The conventional corrugated case die cutting process is shown in figure 1, except that the expanded outline dimension line of the corrugated case is formed by rolling by adopting a knife line, the corrugated case needs to be folded and formed along a plurality of vertical lines or transverse lines (such as a first inner rocking cover folding line 1-2, an outer rocking cover folding transverse line 1-14, a side mark folding transverse line 1-16 and the like), as shown in the figure, an inner rocking cover 1-9 is folded and formed along the first inner rocking cover folding line 1-2, an outer rocking cover 1-13 is folded along the outer rocking cover folding transverse line 1-14 and is bonded with the inner rocking cover 1-9, a seal tongue 1-12 is folded along the first tongue folding line 1-1, and a side mark 1-15 is folded along the side mark folding transverse line 1-16 and is bonded with the tongue 1-12; in order to improve the bonding strength between the side mark and the tongue, and between the outer rocking cover and the inner rocking cover, a certain dash-dot line (also called a glue dot line) is usually rolled on the tongue or the inner rocking cover in the bonding joint surface by using a tooth cutter line as shown by a first tongue dash-dot line 1-3 and a first inner rocking cover dash-dot line 1-4 in the figure, and the rolling distance of the first tongue dash-dot line 1-3 and the first inner rocking cover dash-dot line 1-4 is related to the flute shape of the corrugated board (such as C, B, E flute, etc.), and the knife pitch C flute > B flute > E flute, so the knife pitch C flute > B flute > E flute (such as 10 × 10, 6 × 6, 5, 3 × 3, etc.) applied by the tooth cutter line (such as shown in figures 11 and 12); the shape or angle selection of the first tongue dot-dash line 1-3 on the tongue 1-12 and the first inner rocking cover dot-dash line 1-4 on the inner rocking cover 1-9 is related to the design thought, and also related to the glue spraying (or coating) device of the sealing production line of the corrugated box machine, and the dot-dash line is generally used for rolling the surface paper layer of the tongue 1-12 to be glued with the inner paper of the side mark 1-15, and the surface paper layer of the inner rocking cover 1-9 is glued with the inner paper of the outer rocking cover 1-13, but the dot-dash line only pricks the surface paper of the tongue 1-12 or the inner rocking cover 1-9 and the corrugation connected with the surface paper, so if the first tongue dot-dash line 1-3 or the first inner rocking cover dot-dash line 1-4 has a certain angle (has a certain angle with the corrugation direction 1-11), the dot-dash line has the advantages that the surface paper is not easy to be damaged along the opening line of the pricking cutter, the disadvantage is that it causes the cutting corrugation, thus affecting the strength of the rocking cover for the inner rocking cover 1-9 (in the standing supporting state after packing the article); if the second inner rocking cover chain line 1-8 shown in the figure is adopted to roll the dispensing line along the corrugation (parallel to the corrugation direction 1-11), the advantages are that the corrugation is not damaged, the strength attenuation of the inner rocking cover is not caused, and the defect that the inner rocking cover 1-9 is folded and formed along the second inner rocking cover folding line 1-6, namely the line rolling phenomenon is caused, so that the inner diameter size and the forming quality of the formed corrugated case are influenced;

Secondly, the first tongue folding line 1-1 of the tongue 1-12 shown in fig. 1 is often formed by rolling a pressing line (the shape of the second pressing line 7 shown in the diagram 3) or a serrated line (the shape of the second serrated line 8 shown in fig. 4) alone, but the two pressing lines have the defects, if the first tongue fold line 1-1 rolled using the moulding 7 shown in figure 3 is liable to cause a rolling line, therefore, the size error of the inner diameter of the box body is caused after the tongue 1-12 is folded by the first tongue folding line 1-1, thereby influencing the placement of the packing materials, if the first tongue fold line 1-1 rolled using the second tooth line 8 shown in figure 4 is susceptible to breaking (if pressed heavily) or rolling (if pressed lightly), therefore, the size error of the inner diameter of the box body is also caused after the tongue 1-12 is folded by the first tongue folding line 1-1, so that the placement of packing materials is influenced;

Based on the above reasons, for the packaging box of the corrugated case unfolding shape as shown in fig. 1, in order to solve the problem of the accuracy of the inner diameter size of the corrugated case after the tongue 1-12 is folded by the first tongue folding line 1-1, the accuracy of the inner diameter size of the corrugated case after the first inner cover folding line 1-2 of the inner side cover 1-9 is folded, and the strength of the sealing box of the corrugated case forming machine, the utility model discloses improve the rolling forming process and the die manufacturing of the creasing line as follows:

(1) The shape of the first tongue dash-dot line 1-3 on the tongue 1-12 is improved into a symmetrical dash-dot line of the second tongue dash-dot line 1-7 shown in figure 2, so that the influence of the tongue strength is reduced;

(2) Meanwhile, the first tongue folding line 1-1 is improved into a transverse folding line of a second tongue folding line 1-5, a non-equidistant tooth knife line 8.3 and a combined tooth knife line of a first pressing line 10 shown in figures 5, 8, 9 and 13 are adopted to be rolled and formed with the pressing line, the non-equidistant tooth knife line 8.3 is determined according to the flute shape (such as C, B, E flute) of the corrugated case by adopting 10 multiplied by 10 and 6 multiplied by 6, 5 multiplied by 5 and 3 multiplied by 3 or other combinations (as mentioned above), so that the problem of line rolling of the second tongue folding line 1-5 is solved, and the packaging case can be opened after being used as a corrugated case for packaging articles, namely the second tongue folding line 1-5 is torn and pressed;

(3) The first inner rocking cover folding line 1-2 of the inner rocking cover 1-9 is improved into a second inner rocking cover folding line 1-6 shown in figure 2, and a combined serrated knife line and a pressing line of a narrow equidistant serrated knife line 8.1 or a wide equidistant serrated knife line 8.2 and a first pressing line 10 shown in figures 5, 8, 10, 11 and 12 are adopted for rolling and forming, the narrow equidistant serrated knife line 8.1 or the wide equidistant serrated knife line 8.2 are determined according to the flute shape (such as C, B, E flute) of the corrugated case by adopting 10 multiplied by 10 and 6 multiplied by 6, 5 multiplied by 5 and 3 multiplied by 3 (as mentioned above), and the combined rolling chain line and the second inner rocking cover folding line 1-6 can ensure the dimensional accuracy of the inner diameter of the case after the inner rocking cover 1-9 is folded by the second inner rocking cover folding line 1-6 and the strength of the inner rocking cover;

(4) It should be noted that, as shown in fig. 11, 12 and 13, the tooth height H3 of the tooth cutting line is selected according to the flute shape (such as C, B, E flute) of the corrugated carton, and the tooth height H3 of the tooth cutting line applied to various flute shapes is C flute > B flute > E flute; the width B2 of the pressing line 10 is selected as above, and the combined design is shown in figures 5, 8, 9 and 10, and the central line of the first pressing line 10 is aligned with the second tongue folding line 1-5 and the second inner flap folding line 1-6;

(5) When the improved non-equidistant tooth cutter line 8.3 or wide equidistant tooth cutter line 8.2 is combined with the first pressing line 10, the distance H1 (generally 0.5-1 mm, as shown in figures 9 and 10) between the upper surface of the first pressing line 10 and the fourth cutter bottom 8.3-2 of the non-equidistant tooth cutter line 8.3 or the distance H1 between the third cutter bottom 8.2-2 of the wide equidistant tooth cutter line 8.2 is welded together in the length direction by adopting an equidistant upper spot welding 11 (or a lower welding point 13), and when the dot-dash line formed by combining the wide equidistant tooth cutter line 8.2 and the first pressing line 10 or the non-equidistant tooth cutter line 8.3 with the first pressing line 10 and the pressing line are installed on the die cutting plate 5, cushion blocks 12 with different heights H2 are used according to the thickness of the corrugated carton;

(6) The improved non-equidistant tooth knife line 8.3, the non-equidistant tooth knife line 8.3 or the wide equidistant tooth knife line 8.2 are combined with the line pressing strip 10 and need manual processing to form the line pressing strip, and a second rubber mat 14 with a platform is additionally arranged on the basis of the original first rubber mat 6 and is used for rolling a transverse line folding discharging rubber mat and is formed by manual processing.

The second tongue dotted line 1-7, the second inner rocking cover dotted line 1-8, the second tongue folding line 1-5 and the second inner rocking cover folding line 1-6 are designed through the rolling process shown in the unfolding schematic diagram 2 of the corrugated case, the mold shown in fig. 5, 9, 10, 11, 12 and 13 can be manufactured to completely solve the problems of the forming size precision, the bonding quality and the strength of the corrugated case, the mold can also avoid the phenomena of rolling crease lines or rolling lines or paper fracture similar to those shown in fig. 3 and 4, and meanwhile, the second tongue folding line 1-5 can also be used for making cuts for tearing open the packing case.

Claims

1. A die cutting plate for forming corrugated cartons comprises an upper die cutting roller (3) and a lower die cutting roller (4) which are vertically matched, wherein a high-strength rubber gasket (2) is sleeved outside the upper die cutting roller (3), and a die cutting plate (5) is installed on the lower die cutting roller (4), and is characterized in that a first tooth cutter line (9) and a first pressure line (10) which are used in combination are fixed on the die cutting plate (5), the installation directions of the first tooth cutter line (9) and the first pressure line (10) are vertical to the axis of the lower die cutting roller (4), a cushion block (12) positioned at the bottoms of the first tooth cutter line (9) and the first pressure line (10) is arranged in the die cutting plate (5), an upper welding point (11) and a lower welding point (13) are arranged between the first tooth cutter line (9) and the first pressure line (10), and the upper welding point (11) and the lower welding point (13) are used for keeping the first tooth cutter line (9) and the first pressure line (10) parallel, the outer side of the die cutting plate (5) is provided with a first rubber mat (6) positioned around the first serrated knife line (9) and the first pressing line (10), the first rubber mat (6) is provided with a first platform (6-2), and the first platform (6-2) is provided with a second rubber mat (14).

2. The die cutting plate for corrugated carton forming according to claim 1, wherein the first knife edge (9) comprises a first knife tip (9-1) and a first knife bottom (9-2), the distance between the first knife tip (9-1) and the first knife bottom (9-2) is H3, the distance between the end face of the first bead (10) and the first knife bottom (9-2) is H1, and the width of the first bead (10) is B2.

3. a die-cutting board for corrugated box forming according to claim 1, characterized in that said first tooth lines (9) comprise narrow equidistant tooth lines (8.1), wide equidistant tooth lines (8.2) and non-equidistant tooth lines (8.3).

4. A die-cutting plate for corrugated carton forming according to claim 3, characterized in that said narrow equidistant tooth line (8.1) comprises a second point (8.1-1) and a second bottom (8.1-2), said wide equidistant tooth line (8.2) comprises a third point (8.2-1) and a third bottom (8.2-2), and said non-equidistant tooth line (8.3) comprises a fourth point (8.3-1) and a fourth bottom (8.3-2).