CN109774287B - High-elasticity corrugated board with double corrugated paper cores - Google Patents
High-elasticity corrugated board with double corrugated paper cores Download PDFInfo
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- CN109774287B CN109774287B CN201910220598.8A CN201910220598A CN109774287B CN 109774287 B CN109774287 B CN 109774287B CN 201910220598 A CN201910220598 A CN 201910220598A CN 109774287 B CN109774287 B CN 109774287B
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Abstract
The invention belongs to the technical field of corrugated boards, and particularly relates to a high-elasticity double-corrugated-core corrugated board which comprises a board body, a first paper core and a second paper core; the second paper core is wrapped with a rubber layer, the section of the second paper core is V-shaped, the second paper core is provided with a plurality of second paper cores, every two second paper cores are mutually contacted, and an elastic plate is connected between every two second paper cores; the elastic plate penetrates through the two second paper cores, and two ends of the elastic plate are respectively fixed on the upper parts of the two second paper cores; the first paper core is inserted between the two second paper cores and is in contact connection with the second paper core; according to the invention, the first paper core is pressed between the second paper cores, and the second paper cores are separated from contact, so that the second paper cores are bent outwards, two ends of the same second paper core are contacted with each other, the V-shaped shape of the second paper core is extruded into an oval structure, and the compression strength of the corrugated board is increased.
Description
Technical Field
The invention belongs to the technical field of corrugated boards, and particularly relates to a high-elasticity double-corrugated-core corrugated board.
Background
Corrugated board is a multi-layer adhesive body, which is composed of at least one layer of wavy core paper interlayer (commonly called as "hole paper", "corrugated core paper", "corrugated paper core", "corrugated base paper") and one layer of paper board (also called as "box board paper" or "box paper board"). It has high mechanical strength and can resist collision and falling in the process of transportation. The actual performance of a corrugated box depends on three factors: the nature of the core paper and paperboard and the structure of the carton itself.
The corrugated corrugations of the corrugated board are like arch doors which are connected one by one, are mutually parallel to form a row and mutually support to form a triangular structure body, so that the corrugated board has better mechanical strength, can bear certain pressure from a plane, is rich in elasticity and has good buffering effect; the cushion can be made into liners or containers with various shapes and sizes according to requirements, and is simpler, more convenient and faster than plastic buffer materials; the coating is slightly influenced by temperature, has good light-shielding property, is not deteriorated by illumination, is generally slightly influenced by humidity, but is not suitable for long-term use in an environment with high humidity, and influences the strength of the coating.
The invention discloses a novel high-elasticity double-corrugated-core corrugated board, which comprises an inner paper surface layer, wherein an enhancement layer is fixedly arranged on the outer surface of the inner paper surface layer, a first corrugated paper core layer is arranged on the outer surface of the enhancement layer, a PET (polyethylene terephthalate) intermediate layer is fixedly arranged on the outer surface of the first corrugated paper core layer, a second corrugated paper core layer is fixedly arranged on the outer surface of the PET intermediate layer, a non-woven fabric positioning layer is fixedly arranged on the outer surface of the second corrugated paper core layer, an elastic buffer layer is fixedly arranged on the outer surface of the non-woven fabric positioning layer, a kraft paper layer is fixedly arranged on the outer surface of the elastic buffer layer, and an outer paper surface layer is fixedly arranged on the outer surface of the kraft paper layer; be provided with many silica gel sticks in the first corrugated paper sandwich layer, be provided with a plurality of thing through-holes of putting in the second corrugated paper sandwich layer, every is put and all is provided with a spring assembly in the through-hole.
The existing corrugated board cannot be quickly rebounded after being stressed and deformed, and cannot timely protect objects again, and meanwhile, the buffering and pressure resistance of the existing corrugated board is poor due to the fact that the compression resistance, the compression resistance and the bending resistance of the existing corrugated board are weak, and the normal use of the corrugated board is affected.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the high-elasticity double-corrugated-core corrugated board which is mainly used for solving the problems that the existing corrugated board cannot rebound quickly after being stressed and deformed, and the corrugated board is weak in compression strength and bending strength.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a high-elasticity double-corrugated-core corrugated board which comprises a board body, a first paper core and a second paper core; the first paper core and the second paper core are arranged in the board body; the second paper core is wrapped with a rubber layer, the section of the second paper core is V-shaped, the second paper core is provided with a plurality of second paper cores, every two second paper cores are mutually contacted, and an elastic plate is connected between every two second paper cores; the elastic plate penetrates through the two second paper cores, and two ends of the elastic plate are respectively fixed to the upper parts of the two second paper cores; the section of the first paper core is of a sawtooth structure, and the first paper core is inserted between the two second paper cores through the convex position of the sawtooth structure on the first paper core and is in contact connection with the second paper cores; when the corrugated board works, when the board body is pressed by the external pressure, the protruding positions of the sawtooth structures of the first paper core are pressed into the positions where the second paper cores are contacted with each other, and the two second paper cores are separated from the contact, so that the second paper core is bent outwards, two ends of the same second paper core are contacted with each other, the V shape of the second paper core is extruded into an oval structure, and the compressive strength of the corrugated board is increased; meanwhile, as the first paper core is continuously extruded downwards, the first paper core is contacted with the elastic plate, on one hand, the downward extrusion force of the first paper core is buffered by the arranged elastic plate, so that the compression resistance of the corrugated board is improved; on the other hand, as the elastic plate is connected with the second paper core through two ends, when the elastic plate is deformed after being extruded by the first paper core, the elastic plate pulls the two upper ends of the second paper core to bend, so that the two ends on the same second paper core are contacted with each other more tightly, and the elliptical structure of the second paper core is extruded to be approximately circular, thereby further increasing the compressive strength of the corrugated board; when the plate body is stressed and disappears, the elastic plate and the second paper core are restored through the elastic force of the elastic plate and the second paper core, the first paper core is ejected out, the high elasticity of the corrugated board is guaranteed, the corrugated board can be quickly restored and can be buffered for many times, and the practicability of the corrugated board is improved.
Preferably, two ends of the second paper core are respectively connected with a first magnet with the same magnetic pole, and a first hole is formed in the second paper core; a second hole is formed in the first magnet; the second hole is communicated with the first hole, and a piston rod is arranged in the second hole; a second magnet with the same polarity as the first magnet is arranged at one end, far away from the first hole, of the piston rod, and the other end of the piston rod extends into the first hole; when the corrugated board works, when two ends of a second paper core are in mutual contact, the first magnets with the same magnetic poles are arranged at the two ends of the second paper core, so that after the two ends of the second paper core are subjected to mutual contact pressure due to extrusion force and disappear, the two ends of the second paper core are quickly separated by utilizing the principle that homopolarity between the two first magnets is repelled, the rebound speed of the second paper core is increased, the elasticity of the corrugated board is increased, the corrugated board can be quickly recovered after being stressed, and the next stress buffering is facilitated; the first hole and the second hole which are mutually communicated are formed in the second paper core and the first magnet, so that the corrugated board ensures the structural strength and the light structure; and the piston rod is arranged in the second hole, and the repulsive force between the first magnet and the second magnet is utilized, so that when two ends of the second paper core are contacted, the piston rod slides towards the first hole and compresses air in the first hole, the structure of the second paper core is supported, and the structural strength of the second paper core when the second paper core is deformed is ensured.
Preferably, the first hole is connected with an elastic folding plate in a sliding manner; one end of the elastic folding plate is fixed at the bottom of the first hole, and the elastic folding plate is positioned in the middle of the second paper core; when the corrugated board works, when the piston rod extrudes gas in the first hole in a sliding manner, the elastic folding plate in the first hole is also extruded and compressed, and the elastic folding plate is compressed to the middle part of the second paper core, so that the bending strength of the middle part of the elastic folding plate is ensured, the middle part of the elastic folding plate is prevented from being plastically deformed and being incapable of rebounding due to most concentrated stress, the buffering effect is avoided, and the high elasticity of the corrugated board is ensured; simultaneously, through the inside at No. two refill sets up the elasticity folded sheet, effectively strengthened No. two refill's structural strength, and then strengthened corrugated container board's structural strength to when corrugated container board received slight shake, play the absorbing effect of fast buffer through the elasticity folded sheet, guaranteed corrugated container board's stability in use.
Preferably, a plurality of air bags are arranged in the elastic folding plate; a first spring is arranged in the air bag, the air bag is communicated with the first hole through an exhaust hole, and a pressure valve is arranged in the exhaust hole; when the corrugated board is compressed, the bending strength of the elastic folding board is increased by the gas filled in the air bag, the structural strength of the elastic folding board is ensured, the elastic folding board is prevented from being subjected to plastic deformation due to excessive stress, the rebound effect of the elastic folding board is prevented from being influenced, and the rebound resilience of the corrugated board is reduced; through the spring that sets up in the gasbag, when the elasticity folded sheet kick-backs, a spring contracts under the effect of elasticity and contracts, extrudes the gas in the gasbag from the exhaust hole, accelerates the resilience effect of elasticity folded sheet to No. two refill's resilience effect has been guaranteed, and then corrugated container board's elasticity has been improved.
Preferably, a plurality of elastic ropes are connected between the second paper core and the elastic plate; the elasticity of the middle elastic rope is higher than that of the two side elastic ropes by one grade; when the corrugated board works, the elastic rope is arranged between the second paper core and the elastic board, on one hand, the second paper core and the elastic board are prevented from being subjected to plastic deformation due to overlarge stress through the tensile force of the elastic rope, the high elasticity of the corrugated board is ensured, the service lives of the second paper core and the elastic board are effectively prolonged, and the corrugated board can be repeatedly used; on the other hand, the effect of quick rebound after the second-size paper core and the elastic plate are bent is enhanced through the elasticity of the elastic rope, and the effect of quick buffering and shock absorption of the corrugated board is further improved; because the elasticity of middle elastic rope compares the elasticity of both sides elastic rope and is higher a grade for middle elastic rope is stretched easily, and the tensile effect of both sides is more weak, thereby plays the restriction effect when receiving the pressure bending deformation to No. two refill and elastic plate, avoids No. two refill and elastic plate to take place the condition of plastic deformation, guarantees No. two refill and elastic plate's structural strength, and then has guaranteed corrugated container board's structural strength.
Preferably, a second spring is sleeved on the elastic rope; the diameter of the section of the middle second spring is 0.1-0.5mm larger than that of the second springs on the two sides; when the paper core is in work, the structural strength of the elastic rope is ensured through the second spring sleeved on the elastic rope, the situation that the elastic rope is broken when the second paper core and the elastic plate are limited to be excessively bent and deformed is avoided, and the service life of the elastic rope is prolonged; the section diameter of the middle second spring is larger than that of the two springs on the two sides by 0.1-0.5mm, so that the elasticity of the middle elastic rope is compensated to be stronger than that of the two elastic ropes on the two sides, the bending strength of the elastic rope is ensured while the tensile strength of the elastic rope is ensured, the situation that the second paper core and the elastic plate cannot be restored to the original position due to bending deformation of the elastic rope is avoided, the compressive strength of the corrugated board is reduced, and the use stability of the corrugated board is ensured.
The invention has the following beneficial effects:
1. according to the invention, the first paper core is pressed between the second paper cores, and the second paper cores are separated from contact, so that the second paper cores are bent outwards, two ends of the same second paper core are contacted with each other, the V-shaped shape of the second paper core is extruded into an oval structure, and the compression strength of the corrugated board is increased.
2. On one hand, the downward extrusion force of the first paper core is buffered by the arranged elastic plate, so that the compression resistance of the corrugated board is improved; on the other hand, because the elastic plate is connected with No. two refill through both ends, when the elastic plate takes place deformation after receiving the extrusion of refill, the upper end two parts of elastic plate pulling No. two refill take place crooked, make both ends on the same No. two refill contact each other more inseparabler, and the oval structure of No. two refill is extruded into approximate circular this moment, corrugated container board's compressive strength has further been increased, and simultaneously, the elastic plate also takes place crooked, make two adjacent elastic plates contact because of the bending, make No. two refill can not excessively take place unable resilience of plastic deformation because of the atress.
3. According to the invention, the first magnets with the same magnetic poles are arranged at the two ends of the second paper core, so that the two ends of the second paper core are quickly separated by utilizing the principle that like poles of the two first magnets repel each other after the mutual contact pressure between the two ends of the second paper core disappears due to extrusion force, the rebounding speed of the second paper core is improved, the elasticity of the corrugated board is increased, the corrugated board can be quickly recovered after being stressed, and the next buffering stress is convenient
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is an enlarged view of a portion of FIG. 3 at C;
in the figure: the plate comprises a plate body 1, a first paper core 2, a second paper core 3, an elastic plate 4, a first magnet 5, a first hole 6, a piston rod 7, a second magnet 8, an elastic folding plate 9, an air bag 10, an exhaust hole 12, an elastic rope 13, a second spring 14 and a second hole 61.
Detailed Description
A high-elasticity double-corrugated cardboard according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.
As shown in fig. 1, the high-elasticity double-corrugated paper core corrugated board of the present invention comprises a board body 1, a first paper core 2 and a second paper core 3; the first paper core 2 and the second paper core 3 are arranged in the plate body 1; the second-size paper core 3 is externally wrapped with a rubber layer, the section of the second-size paper core 3 is V-shaped, a plurality of second-size paper cores 3 are arranged, every two second-size paper cores 3 are mutually contacted, and an elastic plate 4 is connected between every two second-size paper cores 3; the elastic plate 4 penetrates through the two second-size paper cores 3, and two ends of the elastic plate 4 are respectively fixed on the upper parts of the two second-size paper cores 3; the section of the first paper core 2 is of a sawtooth structure, and the first paper core 2 is inserted between the two second paper cores 3 through the convex position of the sawtooth structure on the first paper core 2 and is in contact connection with the second paper cores 3; when the corrugated board works, when the board body 1 is subjected to external pressure, the protruding positions of the sawtooth structures of the first paper core 2 are pressed into the positions where the second paper cores 3 are in mutual contact, the two second paper cores 3 are separated from contact, the second paper cores 3 are bent outwards, two ends of the same second paper core 3 are in mutual contact, the V-shaped second paper core 3 is extruded into an oval structure, and the compressive strength of the corrugated board is increased; meanwhile, as the first paper core 2 is continuously extruded downwards, the first paper core 2 is in contact with the elastic plate 4, on one hand, the downward extrusion force of the first paper core 2 is buffered by the arranged elastic plate 4, so that the compression resistance of the corrugated board is improved; on the other hand, because the elastic plate 4 is connected with the second paper core 3 through two ends, when the elastic plate 4 is deformed after being extruded by the first paper core 2, the elastic plate 4 pulls the two upper ends of the second paper core 3 to be bent, so that the two ends of the same second paper core 3 are contacted with each other more tightly, and the elliptical structure of the second paper core 3 is extruded to be approximately circular, thereby further increasing the compressive strength of the corrugated board, and meanwhile, the elastic plate 4 is also bent, so that the two adjacent elastic plates 4 are contacted due to bending, and the second paper core 3 cannot be plastically deformed and cannot rebound due to excessive stress; when the plate body 1 is stressed to disappear, the elastic plate 4 and the second paper core 3 are restored through the elastic force of the elastic plate 4 and the second paper core 3, the first paper core 2 is ejected out, the high elasticity of the corrugated board is ensured, the corrugated board can be quickly restored and can buffer the stress for many times, and the practicability of the corrugated board is improved.
As shown in fig. 2, two ends of the second paper core 3 are respectively connected with a first magnet 5 with the same magnetic pole, and a first hole 6 is arranged in the second paper core 3; a second hole 61 is formed in the first magnet 5; the second hole 61 is communicated with the first hole 6, and a piston rod 7 is arranged in the second hole 61; a second magnet 8 with the same polarity as the first magnet 5 is arranged at one end, far away from the first hole 6, of the piston rod 7, and the other end of the piston rod 7 extends into the first hole 6; when the corrugated board works, when two ends of a second paper core 3 are in mutual contact, the first magnets 5 with the same magnetic poles are arranged at the two ends of the second paper core 3, so that after the two ends of the second paper core 3 lose mutual contact pressure due to extrusion force, the two ends of the second paper core 3 are quickly separated by utilizing the principle that homopolarity between the two first magnets 5 repel each other, the rebound speed of the second paper core 3 is increased, the elasticity of the corrugated board is increased, the corrugated board can be quickly recovered after being stressed, and the next stress buffering is facilitated; the first hole 6 and the second hole 61 which are mutually communicated are formed in the second paper core 3 and the first magnet 5, so that the corrugated board ensures the structural strength and the light structure; and, through set up piston rod 7 in No. two holes 61, utilize the repulsion between magnet 5 and No. two magnet 8 for when No. two refill 3 both ends contact, piston rod 7 slides and compresses the air in No. 6 to a hole 6, plays the supporting role to No. two structure of refill 3, guarantees the structural strength when No. two refill 3 warp.
As shown in fig. 2 and 3, an elastic folding plate 9 is slidably connected in the first hole 6; one end of the elastic folding plate 9 is fixed at the bottom of the first hole 6, and the elastic folding plate 9 is positioned in the middle of the second paper core 3; when the corrugated board is in work, when the piston rod 7 extrudes gas in the first hole 6 in a sliding manner, the elastic folding plate 9 in the first hole 6 is also extruded and compressed, and at the moment, the elastic folding plate 9 is compressed to the middle part of the second paper core 3, so that the bending strength of the middle part of the elastic folding plate 9 is ensured, the middle part of the elastic folding plate 9 is prevented from being plastically deformed and being incapable of rebounding due to most concentrated stress, the buffer effect is lost, and the high elasticity of the corrugated board is ensured; simultaneously, through set up elasticity folded sheet 9 in No. two refill 3's inside, effectively strengthened No. two refill 3's structural strength, and then strengthened corrugated container board's structural strength to when corrugated container board received slight shake, play the absorbing effect of fast buffer through elasticity folded sheet 9, guaranteed corrugated container board's stability in use.
As shown in fig. 4, a plurality of air bags 10 are arranged in the elastic folding plate 9; a first spring is arranged in the air bag 10, the air bag 10 is communicated with the first hole 6 through an exhaust hole 12, and a pressure valve is arranged in the exhaust hole 12; when the corrugated board is in work, the air bag 10 is arranged in the elastic folding board 9, so that the effect of quick buffering and shock absorption of the elastic folding board 9 is effectively enhanced, meanwhile, air between the elastic folding board 9 and the first hole 6 is pressed into the air bag 10 through the exhaust hole 12 formed in the air bag 10, when the elastic folding board 9 is compressed, the bending strength of the elastic folding board 9 is increased through the gas filled in the air bag 10, the structural strength of the elastic folding board 9 is ensured, the elastic folding board 9 is prevented from being subjected to plastic deformation due to excessive stress, the rebound effect of the elastic folding board 9 is prevented from being influenced, and the rebound resilience of the corrugated board is reduced; through the spring that sets up in the gasbag 10, when elasticity folded sheet 9 kick-backs, a spring contracts under the effect of elasticity and contracts, extrudes the gas in the gasbag 10 from exhaust hole 12, accelerates elasticity folded sheet 9's resilience effect to No. two paper core 3's resilience effect has been guaranteed, and then corrugated container board's elasticity has been improved.
As shown in fig. 1, a plurality of elastic ropes 13 are connected between the second paper core 3 and the elastic plate 4; the elasticity of the middle elastic rope 13 is higher than that of the elastic ropes 13 at the two sides by one grade; when the corrugated board works, the elastic rope 13 is arranged between the second paper core 3 and the elastic plate 4, on one hand, the second paper core 3 and the elastic plate 4 are prevented from being subjected to plastic deformation due to overlarge stress through the tensile force of the elastic rope 13, the high elasticity of the corrugated board is ensured, the service lives of the second paper core 3 and the elastic plate 4 are effectively prolonged, and the corrugated board can be reused; on the other hand, the effect of quick rebound after the second-size paper core 3 and the elastic plate 4 are bent is enhanced through the elasticity of the elastic rope 13, and the effect of quick buffering and shock absorption of the corrugated board is further improved; because the elasticity of middle elastic rope 13 compares elasticity of both sides elastic rope 13 and is higher a grade for middle elastic rope 13 is stretched easily, and the tensile effect of both sides is weaker, thereby plays the limiting displacement when compressing bending deformation to No. two refill 3 and elastic plate 4, avoids No. two refill 3 and elastic plate 4 to take place the condition of plastic deformation, guarantees No. two refill 3 and elastic plate 4's structural strength, and then has guaranteed corrugated container board's structural strength.
As shown in fig. 1 and 3, a second spring 14 is sleeved on the elastic rope 13; the diameter of the section of the middle second spring 14 is 0.1-0.5mm larger than that of the sections of the second springs 14 on the two sides; when the paper core bending device works, the structural strength of the elastic rope 13 is ensured through the second spring 14 sleeved on the elastic rope 13, the situation that the elastic rope 13 is broken when the second paper core 3 and the elastic plate 4 are limited to be bent and deformed excessively is avoided, and the service life of the elastic rope 13 is prolonged; the section diameter of the middle second spring 14 is larger than that of the two springs 14 on the two sides by 0.1-0.5mm, the elasticity of the middle elastic rope 13 is compensated to be stronger than that of the two elastic ropes 13 on the two sides, the bending strength of the elastic rope 13 is ensured while the tensile strength is ensured, the situation that the second paper core 3 and the elastic plate 4 cannot return to the original position due to bending deformation of the elastic rope 13 is avoided, the compressive strength of the corrugated board is reduced, and the use stability of the corrugated board is ensured.
The specific working mode is as follows:
when the corrugated board works, when the board body 1 is subjected to external pressure, the protruding positions of the sawtooth structures of the first paper core 2 are pressed into the positions where the second paper cores 3 are in mutual contact, the two second paper cores 3 are separated from contact, the second paper cores 3 are bent outwards, two ends of the same second paper core 3 are in mutual contact, the V-shaped second paper core 3 is extruded into an oval structure, and the compressive strength of the corrugated board is increased; meanwhile, as the first paper core 2 is continuously extruded downwards, the first paper core 2 is in contact with the elastic plate 4, on one hand, the downward extrusion force of the first paper core 2 is buffered by the arranged elastic plate 4, so that the compression resistance of the corrugated board is improved; on the other hand, because the elastic plate 4 is connected with the second paper core 3 through two ends, when the elastic plate 4 is deformed after being extruded by the first paper core 2, the elastic plate 4 pulls the two upper ends of the second paper core 3 to be bent, so that the two ends of the same second paper core 3 are contacted with each other more tightly, and the elliptical structure of the second paper core 3 is extruded to be approximately circular, thereby further increasing the compressive strength of the corrugated board, and meanwhile, the elastic plate 4 is also bent, so that the two adjacent elastic plates 4 are contacted due to bending, and the second paper core 3 cannot be plastically deformed and cannot rebound due to excessive stress; when the plate body 1 is stressed to disappear, the elastic plate 4 and the second paper core 3 are restored through the elastic force of the elastic plate 4 and the second paper core 3, the first paper core 2 is ejected out, the high elasticity of the corrugated board is ensured, the corrugated board can be quickly restored and can buffer the stress for many times, and the practicability of the corrugated board is improved.
In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. A high-elasticity corrugated board with double corrugated paper cores comprises a board body (1), a first paper core (2) and a second paper core (3); a refill (2) and No. two refill (3) set up in plate body (1), its characterized in that: the second-number paper core (3) is wrapped with a rubber layer, the section of the second-number paper core (3) is V-shaped, a plurality of second-number paper cores (3) are arranged, every two second-number paper cores (3) are mutually contacted, and an elastic plate (4) is connected between every two second-number paper cores (3); the elastic plate (4) penetrates through the two second-size paper cores (3), and two ends of the elastic plate (4) are respectively fixed to the upper parts of the two second-size paper cores (3); the section of the first paper core (2) is of a sawtooth structure, and the first paper core (2) is inserted between the two second paper cores (3) through the protruding positions of the sawtooth structure on the first paper core (2) and is in contact connection with the second paper cores (3).
2. The high elasticity double corrugated cardboard of claim 1, wherein: two ends of the second paper core (3) are respectively connected with a first magnet (5) with the same magnetic pole, and a first hole (6) is formed in the second paper core (3); a second hole (61) is formed in the first magnet (5); the second hole (61) is communicated with the first hole (6), and a piston rod (7) is arranged in the second hole (61); one end of the piston rod (7) far away from the first hole (6) is provided with a second magnet (8) with the same polarity as the first magnet (5), and the other end of the piston rod (7) extends into the first hole (6).
3. The high elasticity double corrugated cardboard of claim 2, wherein: an elastic folding plate (9) is connected in the first hole (6) in a sliding manner; one end of the elastic folding plate (9) is fixed at the bottom of the first hole (6), and the elastic folding plate (9) is positioned in the middle of the second paper core (3).
4. The high elasticity double corrugated cardboard of claim 3, wherein: a plurality of air bags (10) are arranged in the elastic folding plate (9); a first spring is arranged in the air bag (10).
5. The high elasticity double corrugated cardboard of claim 1, wherein: a plurality of elastic ropes (13) are connected between the second paper core (3) and the elastic plate (4); the elasticity of the middle elastic rope (13) is higher than that of the two side elastic ropes (13) by one grade.
6. The high elasticity double corrugated cardboard of claim 5, wherein: a second spring (14) is sleeved on the elastic rope (13); the diameter of the section of the middle second spring (14) is 0.1-0.5mm larger than that of the second springs (14) at the two sides.
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| CN201910220598.8A CN109774287B (en) | 2019-03-22 | 2019-03-22 | High-elasticity corrugated board with double corrugated paper cores |
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| CN201910220598.8A CN109774287B (en) | 2019-03-22 | 2019-03-22 | High-elasticity corrugated board with double corrugated paper cores |
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| CN109774287B true CN109774287B (en) | 2020-11-03 |
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| CN110367644B (en) * | 2019-07-10 | 2021-03-26 | 安徽机电职业技术学院 | Shock-absorbing ventilating shoe pad |
| CN110615159B (en) * | 2019-09-24 | 2021-07-27 | 武汉易锦包装印务有限公司 | Wine box and manufacturing process thereof |
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| CN201530959U (en) * | 2009-10-19 | 2010-07-21 | 李新桥 | Corrugated paperboard containing two corrugated paper cores |
| CN208020889U (en) * | 2018-01-24 | 2018-10-30 | 重庆松雨纸业有限公司 | High-strength composite corrugated board |
| CN208085195U (en) * | 2018-03-15 | 2018-11-13 | 温州市振鑫纸制品有限公司 | A kind of corrugated board |
| CN208020893U (en) * | 2018-03-27 | 2018-10-30 | 浙江宏印包装有限公司 | A kind of double corrugating media corrugated boards of Novel high-elasticity |
| CN108755277A (en) * | 2018-06-21 | 2018-11-06 | 湖北泰友纸业有限公司 | A kind of MULTILAYER COMPOSITE corrugated board and its production technology |
| CN109278390A (en) * | 2018-11-28 | 2019-01-29 | 泰州市源鑫包装有限公司 | A kind of corrugated board of special improvement structure |
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2019
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