阅读说明：本技术 瓦楞纸板的封边工艺 (Edge sealing process of corrugated board ) 是由 于利亚 杜俊波 肖闯 于 2021-04-20 设计创作，主要内容包括：本发明涉及瓦楞纸板的技术领域,公开了瓦楞纸板的封边工艺,具体包括如下步骤：S1：利用模具本体制作封边胶条,模具本体上设置有多个胶条成型槽,胶条成型槽内倒入AB胶,倒入完成后静置10-25min,制成封边胶条；S2：对瓦楞纸板的边角进行切边保证边槽为同一直线上,切边后进行吸料,将剪切的碎屑吸出瓦楞纸芯。本发明通过向瓦楞纸芯内部注入AB胶,提高了瓦楞纸板自身的硬度,同时AB胶的注入充实了瓦楞纸板,使瓦楞纸板的防暑效果提升,并且边侧通过封边胶条实现粘结,使瓦楞纸板的边壁更加强硬,从而增强了边角的抗冲击性能。(The invention relates to the technical field of corrugated boards, and discloses a corrugated board edge sealing process, which specifically comprises the following steps: s1: manufacturing an edge sealing adhesive tape by using a die body, wherein the die body is provided with a plurality of adhesive tape forming grooves, AB adhesive is poured into the adhesive tape forming grooves, and the die body is kept stand for 10-25min after pouring is finished to manufacture the edge sealing adhesive tape; s2: the edges and corners of the corrugated board are cut to ensure that the edge grooves are in the same straight line, and the materials are sucked after the edges are cut, so that the cut scraps are sucked out of the corrugated paper core. The AB glue is injected into the corrugated paper core, so that the hardness of the corrugated board is improved, the corrugated board is filled by the AB glue, the sunstroke prevention effect of the corrugated board is improved, the edge side is bonded by the edge sealing adhesive tape, the edge wall of the corrugated board is stronger, and the impact resistance of the corners is enhanced.)

1. The edge sealing process of the corrugated board is characterized by comprising the following steps:

s1: manufacturing an edge sealing adhesive tape by using a die body, wherein the die body is provided with a plurality of adhesive tape forming grooves, AB adhesive is poured into the adhesive tape forming grooves, and the die body is kept stand for 10-25min after pouring is finished to manufacture the edge sealing adhesive tape;

s2: trimming the edges of the corrugated board to ensure that the edge grooves are in the same straight line, sucking materials after trimming, and sucking the cut scraps out of the corrugated paper core;

s3: heating and softening the first edge sealing rubber strip, controlling the temperature to be 80-120 ℃, taking out the softened edge sealing rubber strip, vertically placing the corrugated board on the upper part of the edge sealing rubber strip, and injecting AB glue into the through hole-shaped edge part of the corrugated board until the liquid level of the AB glue reaches the edge of the upper through hole of the corrugated board;

s4: taking out the second edge sealing adhesive tape, smearing a layer of AB adhesive on the upper part of the second edge sealing adhesive tape, inserting the upper part of the corrugated board of S3 onto the second edge sealing adhesive tape, and pressing with force until the AB adhesive on the upper part of the second edge sealing adhesive tape is solidified and is bonded with the corrugated board;

s5: cutting and leveling the edge sealing adhesive tapes on the two sides of the corrugated board, placing the corrugated board in an oven after leveling, controlling the temperature to be 30-50 ℃ to harden the AB adhesive inside the corrugated board, taking out the corrugated board and naturally cooling to room temperature to finish the edge sealing operation of the corrugated board.

2. A process for edge sealing a corrugated cardboard as claimed in claim 1 wherein in S1, the mold body is provided with a plurality of strip molding grooves having a width equal to or greater than the thickness of the corrugated cardboard.

3. A process for sealing edges of corrugated cardboard as claimed in claim 2 wherein the edge cutting is performed by cutting the side walls of the corrugated cardboard at S2, and the adjacent side walls of the corrugated cardboard are perpendicular to each other after cutting.

4. A corrugated cardboard edge sealing process according to claim 3 wherein in S3, after the first edge sealing strip is softened by heating, when the corrugated cardboard is pressed against the edge sealing strip, an edge sealing groove is formed in the edge sealing strip, the edge sealing groove being adapted to the side of the corrugated cardboard core.

5. A corrugated cardboard as claimed in claim 4 wherein a face paper layer is provided on both sides of the corrugated core, the face paper layer contacting the side walls of the edge sealing strip.

6. A corrugated cardboard edge banding process as claimed in claim 5 wherein in S4 the second edge banding strip is operated in conjunction with the corrugated cardboard by:

s11: coating a layer of AB glue on the upper part of the second edge sealing adhesive tape, rotating the corrugated board of S3 by 180 degrees, and then inserting the lower bottom surface into the AB glue;

s12: inserting the second edge sealing rubber strip into the upper wall of the second edge sealing rubber strip, and pressing the corrugated board for 30-60s until the AB rubber at the upper part of the second edge sealing rubber strip is hardened;

s13: and (4) erasing the AB glue solution sprayed on the side wall of the second edge sealing rubber strip.

7. A corrugated cardboard edge banding process as claimed in claim 6 wherein in S5 the flattening operation is performed by rolling the rollers 3-5 times over the side walls of the cardboard to flatten the AB glue inside the corrugated cardboard core.

8. A corrugated board edge banding process as claimed in claim 7 wherein said cutting removes AB glue adhered to the side walls of the edge banding strip to ensure that the side walls of the edge banding strip are flush with the side walls of the corrugated board.

Technical Field

The invention relates to the technical field of corrugated boards, in particular to a corrugated board edge sealing process.

Background

Corrugated container board is the most widely packing material of using at present, corrugated paper self has the quality light, with low costs, workable characteristics, and can play the effect of buffering external impact in the transportation, article in the corrugated container board can effectively be protected, in prior art, the corrugated paper is because self material restriction, soften easily after weing, lose the effect of absorbing external impact, and corrugated container board's limit portion is the wave or is the through-hole form, make outside moisture get into inside easily and cause corrugated container board intensity to reduce, soften, thereby lead to corrugated container board unable the use.

Through the retrieval, chinese patent application publication No. CN 110682609 a discloses a corrugated container board of tectorial membrane banding, including the corrugated paper, the upper and lower both sides of corrugated paper all adhere there is cardboard paper, and it has fire-retardant filler, two to fill between corrugated paper and the cardboard paper the lateral wall that cardboard paper kept away from each other all has waterproof tectorial membrane through the hot melt adhesive bonding, and two horizontal setting groove of stepping down have all been seted up to one side that two tectorial membranes kept away from each other, the equal joint in both sides of tectorial membrane has door font extrusion moulding strip.

The prior edge sealing process of the corrugated board has the following defects: banding inefficiency to the corrugated container board thickness has been increased, thereby corrugated container board's cost of transportation has been increased, the door font extrusion moulding strip that sets up simultaneously utilizes the card strip to realize fixedly with the groove lock joint that steps down, like this the door font extrusion moulding strip on corrugated container board after long-time the use drops easily, thereby influences the later stage and uses.

Disclosure of Invention

The invention aims to provide a corrugated board edge sealing process, which improves the hardness of a corrugated board by injecting AB glue into a corrugated paper core, simultaneously fills the corrugated board by injecting the AB glue, improves the heatstroke prevention effect of the corrugated board, realizes bonding on the edge side through edge sealing adhesive tapes, and aims to solve the problems that the edge sealing process of the corrugated board in the prior art is low in edge sealing efficiency, increases the thickness of the corrugated board, increases the transportation cost of the corrugated board, and simultaneously, the arranged door-shaped extrusion molding strips are fastened and fixed by utilizing clamping strips and abdicating grooves, so that the door-shaped extrusion molding strips on the corrugated board are easy to fall off after being used for a long time.

The invention is realized in this way, the edge sealing process of the corrugated board specifically comprises the following steps:

s1: manufacturing an edge sealing adhesive tape by using a die body, wherein the die body is provided with a plurality of adhesive tape forming grooves, AB adhesive is poured into the adhesive tape forming grooves, and the die body is kept stand for 10-25min after pouring is finished to manufacture the edge sealing adhesive tape;

s2: trimming the edges of the corrugated board to ensure that the edge grooves are in the same straight line, sucking materials after trimming, and sucking the cut scraps out of the corrugated paper core;

s3: heating and softening the first edge sealing rubber strip, controlling the temperature to be 80-120 ℃, taking out the softened edge sealing rubber strip, vertically placing the corrugated board on the upper part of the edge sealing rubber strip, and injecting AB glue into the through hole-shaped edge part of the corrugated board until the liquid level of the AB glue reaches the edge of the upper through hole of the corrugated board;

s4: taking out the second edge sealing adhesive tape, smearing a layer of AB adhesive on the upper part of the second edge sealing adhesive tape, inserting the upper part of the corrugated board of S3 onto the second edge sealing adhesive tape, and pressing with force until the AB adhesive on the upper part of the second edge sealing adhesive tape is solidified and is bonded with the corrugated board;

s5: cutting and leveling the edge sealing adhesive tapes on the two sides of the corrugated board, placing the corrugated board in an oven after leveling, controlling the temperature to be 30-50 ℃ to harden the AB adhesive inside the corrugated board, taking out the corrugated board and naturally cooling to room temperature to finish the edge sealing operation of the corrugated board.

Further, in S1, a plurality of rubber strip forming grooves are provided on the die body, and the width of the rubber strip forming grooves is equal to or greater than the thickness of the corrugated board.

Further, in S2, the corner trimming is to cut the side walls of the corrugated cardboard, and the adjacent side walls of the corrugated cardboard after cutting are perpendicular to each other.

Further, after carrying out heat softening treatment to first banding adhesive tape, corrugated container board when extrudeing with the banding adhesive tape mutually, form the banding groove on the banding adhesive tape, the side looks adaptation of banding groove and corrugated paper core.

Furthermore, surface paper layers are arranged on two sides of the corrugated paper core and are in contact with the side walls of the edge sealing adhesive tape.

Further, in S4, the second sealing strip and the corrugated cardboard are operated in the following manner:

s11: coating a layer of AB glue on the upper part of the second edge sealing adhesive tape, rotating the corrugated board of S3 by 180 degrees, and then inserting the lower bottom surface into the AB glue;

s12: inserting the second edge sealing rubber strip into the upper wall of the second edge sealing rubber strip, and pressing the corrugated board for 30-60s until the AB rubber at the upper part of the second edge sealing rubber strip is hardened;

s13: and (4) erasing the AB glue solution sprayed on the side wall of the second edge sealing rubber strip.

Further, in S5, the flattening operation is to flatten the AB glue inside the corrugated medium by rolling the rollers 3-5 times on the side walls of the corrugated cardboard.

Further, the cutting is to remove the AB glue adhered to the side wall of the edge sealing rubber strip, so as to ensure that the side wall of the edge sealing rubber strip is flush with the side wall of the corrugated board.

Compared with the prior art, the edge sealing process for the corrugated board provided by the invention has the following beneficial effects:

1. the AB glue is injected into the corrugated paper core, so that the hardness of the corrugated board is improved, the corrugated board is filled by the AB glue, the sunstroke prevention effect of the corrugated board is improved, the side edges are bonded by the edge sealing adhesive tape, the side walls of the corrugated board are stronger, and the impact resistance of the corners is enhanced;

2. produce the banding adhesive tape through the mould body, production is high-efficient to through to the inside AB glue that pours into of adhesive tape shaping inslot, treat AB glue solidification moulding back and made the banding adhesive tape promptly, the banding adhesive tape softens under high temperature and can produce the banding groove when bonding mutually with the corrugated paper board, utilizes the banding groove to increase AB glue and the bonding area of banding adhesive tape, thereby has increased the adhesion stress.

Drawings

Fig. 1 is a structural view of a corrugated cardboard after edge sealing of the corrugated cardboard according to the present invention;

fig. 2 is a schematic structural view of a mold for producing an edge sealing adhesive tape in the edge sealing process of a corrugated board according to the present invention;

fig. 3 is a side view of a corrugated cardboard edge sealing structure of the edge sealing process of the corrugated cardboard according to the present invention.

In the figure: 1-corrugated paper core, 2-face paper layer, 3-edge sealing adhesive tape, 4-edge sealing groove, 5-mould body and 6-adhesive tape forming groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Example 1

Referring to fig. 1 to 3, the edge sealing process of the corrugated board specifically includes the following steps:

s1: manufacturing edge sealing rubber strips by utilizing a die body, wherein a plurality of rubber strip forming grooves are formed in the die body, AB rubber is poured into the rubber strip forming grooves, and the die body is kept stand for 10min after pouring is finished to manufacture the edge sealing rubber strips;

s2: trimming the edges of the corrugated board to ensure that the edge grooves are in the same straight line, sucking materials after trimming, and sucking the cut scraps out of the corrugated paper core;

s3: heating and softening the first edge sealing rubber strip, controlling the temperature at 80 ℃, taking out the softened edge sealing rubber strip, vertically placing the corrugated board on the upper part of the edge sealing rubber strip, and injecting AB glue into the through-hole-shaped edge part of the corrugated board until the liquid level of the AB glue reaches the edge of the through hole on the upper part of the corrugated board;

s4: taking out the second edge sealing adhesive tape, smearing a layer of AB adhesive on the upper part of the second edge sealing adhesive tape, inserting the upper part of the corrugated board of S3 onto the second edge sealing adhesive tape, and pressing with force until the AB adhesive on the upper part of the second edge sealing adhesive tape is solidified and is bonded with the corrugated board;

s5: cutting and leveling the edge sealing adhesive tapes on the two sides of the corrugated board, placing the corrugated board in an oven after leveling, controlling the temperature at 30 ℃ to harden the AB adhesive inside the corrugated board, taking out the corrugated board, and naturally cooling to room temperature to finish the edge sealing operation of the corrugated board.

In S1, a plurality of rubber strip forming grooves are provided on the die body, and the width of the rubber strip forming grooves is equal to or greater than the thickness of the corrugated board.

In S2, the corner trimming is to cut the side walls of the corrugated cardboard, and the adjacent side walls of the corrugated cardboard after cutting are perpendicular to each other.

After carrying out heat softening treatment to first banding adhesive tape, corrugated container board when extrudeing with the banding adhesive tape mutually, form the banding groove on the banding adhesive tape, the avris looks adaptation of banding groove and corrugated paper core.

And the two sides of the corrugated paper core are provided with surface paper layers, and the surface paper layers are in contact with the side walls of the edge sealing adhesive tapes.

In S4, the second sealing strip and the corrugated cardboard are operated in the following manner:

s11: coating a layer of AB glue on the upper part of the second edge sealing adhesive tape, rotating the corrugated board of S3 by 180 degrees, and then inserting the lower bottom surface into the AB glue;

s12: inserting the second edge sealing rubber strip into the upper wall of the second edge sealing rubber strip, and pressing the corrugated board for 30s until the AB rubber at the upper part of the second edge sealing rubber strip is hardened;

s13: and (4) erasing the AB glue solution sprayed on the side wall of the second edge sealing rubber strip.

In S5, the flattening operation is to flatten the AB glue inside the corrugated medium by rolling the rollers 3 times on the side walls of the corrugated cardboard.

And the cutting is to remove the AB glue adhered to the side wall of the edge sealing rubber strip, so as to ensure that the side wall of the edge sealing rubber strip is flush with the side wall of the corrugated board.

Example 2

Referring to fig. 1 to 3, the edge sealing process of the corrugated board specifically includes the following steps:

s1: manufacturing edge sealing rubber strips by using a die body, wherein a plurality of rubber strip forming grooves are formed in the die body, AB rubber is poured into the rubber strip forming grooves, and the die body is kept stand for 20min after pouring is finished to manufacture the edge sealing rubber strips;

s2: trimming the edges of the corrugated board to ensure that the edge grooves are in the same straight line, sucking materials after trimming, and sucking the cut scraps out of the corrugated paper core;

s3: heating and softening the first edge sealing rubber strip, controlling the temperature at 100 ℃, taking out the softened edge sealing rubber strip, vertically placing the corrugated board on the upper part of the edge sealing rubber strip, and injecting AB glue into the through-hole-shaped edge part of the corrugated board until the liquid level of the AB glue reaches the edge of the through hole on the upper part of the corrugated board;

s4: taking out the second edge sealing adhesive tape, smearing a layer of AB adhesive on the upper part of the second edge sealing adhesive tape, inserting the upper part of the corrugated board of S3 onto the second edge sealing adhesive tape, and pressing with force until the AB adhesive on the upper part of the second edge sealing adhesive tape is solidified and is bonded with the corrugated board;

s5: cutting and leveling the edge sealing adhesive tapes on the two sides of the corrugated board, placing the corrugated board in an oven after leveling, controlling the temperature to be 40 ℃ to harden the AB adhesive inside the corrugated board, and naturally cooling the corrugated board to room temperature after taking out the corrugated board, thereby finishing the edge sealing operation of the corrugated board.

In S1, a plurality of rubber strip forming grooves are provided on the die body, and the width of the rubber strip forming grooves is equal to or greater than the thickness of the corrugated board.

In S2, the corner trimming is to cut the side walls of the corrugated cardboard, and the adjacent side walls of the corrugated cardboard after cutting are perpendicular to each other.

After carrying out heat softening treatment to first banding adhesive tape, corrugated container board when extrudeing with the banding adhesive tape mutually, form the banding groove on the banding adhesive tape, the avris looks adaptation of banding groove and corrugated paper core.

And the two sides of the corrugated paper core are provided with surface paper layers, and the surface paper layers are in contact with the side walls of the edge sealing adhesive tapes.

In S4, the second sealing strip and the corrugated cardboard are operated in the following manner:

s11: coating a layer of AB glue on the upper part of the second edge sealing adhesive tape, rotating the corrugated board of S3 by 180 degrees, and then inserting the lower bottom surface into the AB glue;

s12: inserting the second edge sealing rubber strip into the upper wall of the second edge sealing rubber strip, and pressing the corrugated board for 50s until the AB rubber at the upper part of the second edge sealing rubber strip is hardened;

s13: and (4) erasing the AB glue solution sprayed on the side wall of the second edge sealing rubber strip.

In S5, the flattening operation is to flatten the AB glue inside the corrugated cardboard core by rolling the rollers 4 times on the side walls of the corrugated cardboard.

And the cutting is to remove the AB glue adhered to the side wall of the edge sealing rubber strip, so as to ensure that the side wall of the edge sealing rubber strip is flush with the side wall of the corrugated board.

Example 3

Referring to fig. 1 to 3, the edge sealing process of the corrugated board specifically includes the following steps:

s1: manufacturing edge sealing rubber strips by using a die body, wherein a plurality of rubber strip forming grooves are formed in the die body, AB rubber is poured into the rubber strip forming grooves, and the die body is kept stand for 25min after pouring is finished to manufacture the edge sealing rubber strips;

s2: trimming the edges of the corrugated board to ensure that the edge grooves are in the same straight line, sucking materials after trimming, and sucking the cut scraps out of the corrugated paper core;

s3: heating and softening the first edge sealing rubber strip, controlling the temperature at 120 ℃, taking out the softened edge sealing rubber strip, vertically placing the corrugated board on the upper part of the edge sealing rubber strip, and injecting AB glue into the through-hole-shaped edge part of the corrugated board until the liquid level of the AB glue reaches the edge of the through hole on the upper part of the corrugated board;

s4: taking out the second edge sealing adhesive tape, smearing a layer of AB adhesive on the upper part of the second edge sealing adhesive tape, inserting the upper part of the corrugated board of S3 onto the second edge sealing adhesive tape, and pressing with force until the AB adhesive on the upper part of the second edge sealing adhesive tape is solidified and is bonded with the corrugated board;

s5: cutting and leveling the edge sealing adhesive tapes on the two sides of the corrugated board, placing the corrugated board in an oven after leveling, controlling the temperature to be 50 ℃ to harden the AB adhesive inside the corrugated board, and naturally cooling the corrugated board to room temperature after taking out the corrugated board, thereby finishing the edge sealing operation of the corrugated board.

In S1, a plurality of rubber strip forming grooves are provided on the die body, and the width of the rubber strip forming grooves is equal to or greater than the thickness of the corrugated board.

In S2, the corner trimming is to cut the side walls of the corrugated cardboard, and the adjacent side walls of the corrugated cardboard after cutting are perpendicular to each other.

After carrying out heat softening treatment to first banding adhesive tape, corrugated container board when extrudeing with the banding adhesive tape mutually, form the banding groove on the banding adhesive tape, the avris looks adaptation of banding groove and corrugated paper core.

And the two sides of the corrugated paper core are provided with surface paper layers, and the surface paper layers are in contact with the side walls of the edge sealing adhesive tapes.

In S4, the second sealing strip and the corrugated cardboard are operated in the following manner:

s11: coating a layer of AB glue on the upper part of the second edge sealing adhesive tape, rotating the corrugated board of S3 by 180 degrees, and then inserting the lower bottom surface into the AB glue;

s12: inserting the second edge sealing rubber strip into the upper wall of the second edge sealing rubber strip, and pressing the corrugated board for 60s until the AB rubber at the upper part of the second edge sealing rubber strip is hardened;

s13: and (4) erasing the AB glue solution sprayed on the side wall of the second edge sealing rubber strip.

In S5, the flattening operation is to flatten the AB glue inside the corrugated medium by rolling the rollers 5 times on the side walls of the corrugated cardboard.

And the cutting is to remove the AB glue adhered to the side wall of the edge sealing rubber strip, so as to ensure that the side wall of the edge sealing rubber strip is flush with the side wall of the corrugated board.

Comparative example

The edge-sealed corrugated boards produced in examples 1-3 were tested for strength and compared to prior art (control) data to obtain the following table:

by last table, through to inside AB glue of pouring into of corrugated paper core, corrugated container board self hardness has been improved, impact strength has promoted more than 50%, corrugated container board has been filled in the injection of AB glue simultaneously, make corrugated container board's heatstroke prevention effect promote, and the avris realizes bonding through the banding adhesive tape, make corrugated container board's boundary wall stronger, side impact resistance has promoted more than 40, thereby the shock resistance of corner has been strengthened, produce the banding adhesive tape through the mould body, the production is high-efficient, and through to inside AB glue of pouring into of adhesive tape shaping inslot, treat that AB glue solidification moulding back has made the banding adhesive tape, the banding adhesive tape can produce the banding groove when softening and corrugated container board bonding under high temperature, utilize the banding groove to increase AB glue and the bonding area of banding adhesive tape, thereby the cohesive force has been increased.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.