CN111251682B

CN111251682B - Case and bag board and manufacturing method thereof

Info

Publication number: CN111251682B
Application number: CN202010054981.3A
Authority: CN
Inventors: 丁克轮
Original assignee: Shanghai Aifeng Luggage Co ltd
Current assignee: Shanghai Aifeng Luggage Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2022-02-22
Anticipated expiration: 2040-01-17
Also published as: CN111251682A

Abstract

The invention relates to the technical field of luggage production technology, in particular to a luggage plate, which comprises an ABS plate layer and a PC plate layer, wherein the ABS plate layer comprises a plurality of ABS substrates, the ABS substrates are arranged in an array manner, one side of each ABS substrate is provided with a first upper wing plate and the other side of each ABS substrate is provided with a first lower wing plate along the width direction of the ABS plate layer, the first upper wing plates and the first lower wing plates on two adjacent ABS substrates are lapped, one side of each ABS substrate is provided with a second upper wing plate and the other side of each ABS substrate is provided with a second lower wing plate along the length direction of the ABS plate layer, the second upper wing plates and the second lower wing plates on two adjacent ABS substrates are lapped, and the EVA plate layer is arranged between the ABS plate layer and the PC plate layer. The invention also relates to a manufacturing method for the luggage plate, which comprises the steps of forming the ABS substrate, forming the EVA plate layer, forming the PC plate layer, assembling, hot-pressing and compounding, cutting and heating and forming. The invention has the effect of better protecting the ABS plate and ensuring that the ABS plate layer is not easy to break.

Description

Case and bag board and manufacturing method thereof

Technical Field

The invention relates to the technical field of case production processes, in particular to a case board and a manufacturing method thereof.

Background

With the continuous improvement of living standard of people, high-grade ABS bags have become the main bag materials favored by people. At present, ABS bags generally sold in the market are made of resin materials mainly comprising acrylonitrile (A), butadiene (B) and styrene (S), and are materials with certain toughness and rigidity. The case made of the material has the advantages that: has higher impact strength, and the impact strength can not be rapidly reduced at low temperature; secondly, the surface hardness is higher and is between 60 and 118 in Rockwell; has good cold resistance and certain mechanical strength at minus 40 ℃; has good oil resistance, water resistance and chemical stability, has little influence on water, inorganic salts and acid, and is not soluble in most alcohols and hydrocarbons.

Chinese patent No. CN103407165B discloses a method for manufacturing an ABS/PC hard shell case, comprising the following steps: 1) co-extruding by an injection molding machine to obtain more than two layers of composite boards; 2) attaching another PC (polycarbonate) coating film to the surface of the PC plate layer on the surface layer at the head end of the co-extrusion die of the injection molding machine; 3) cutting the laminated composite board into pieces; 4) and heating and forming the cut pieces of the composite board to obtain the ABS/PC hard shell box body.

The manufacturing method of the ABS/PC hard shell box body is characterized in that a layer of PC film is attached to the surface of the hard shell box body on the basis of the existing hard shell box body formed by injection molding and co-extrusion of two layers of plastic materials, so that the wear resistance of the surface of the hard shell box body is improved. Because the PC coating is of a flexible structure, the impact resistance of the surface of the hard shell box body can be improved, and the purpose of prolonging the service life of the hard shell box body is further achieved.

In practical use, ABS materials have limitations in terms of impact resistance, and tend to fracture directly when subjected to an impact greater than its tensile strength. The PC film formed in the manufacturing method of the ABS/PC hard shell box body can play a certain role in buffering, but under the condition of large impact deformation, the role of the PC film with a very thin thickness is greatly weakened, and the ABS is still easy to break.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a luggage plate which has the effects of better protecting an ABS plate and enabling an ABS plate layer not to be broken easily.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a case and bag panel, includes ABS sheet material layer, ABS sheet material layer both sides are equipped with PC sheet material layer respectively, ABS sheet material layer includes a plurality of ABS base plates, ABS base plate array sets up, on the width direction on ABS sheet material layer is followed, ABS base plate one side is equipped with pterygoid lamina one, and the opposite side is equipped with pterygoid lamina one down, and goes up pterygoid lamina one and two PC sheet material layers are pressed close to respectively with pterygoid lamina one down, and last pterygoid lamina one on two adjacent ABS base plates and a lower pterygoid lamina overlap joint, on the length direction on ABS sheet material layer, ABS base plate one side is equipped with pterygoid lamina two, and the opposite side is equipped with pterygoid lamina two down, and goes up pterygoid lamina two and press close to respectively two PC sheet material layers down with pterygoid lamina two on two adjacent ABS base plates, be equipped with the EVA sheet material layer between ABS sheet material layer and the PC sheet material layer.

By adopting the technical scheme, the ABS plate layer is formed by overlapping ABS substrates arranged in an array, and the ABS substrates can be dislocated to a certain degree relative to other surrounding ABS substrates after being impacted along the normal direction of the ABS plate layer, so that the deformation really appearing on the ABS substrates is smaller; in addition, the EVA sheet material layer has good flexibility, and buffers the ABS substrate when the ABS substrate is impacted and dislocated; finally, the ABS plate layer is well protected, so that the ABS plate is not easy to break.

The present invention in a preferred example may be further configured to: on the width direction on edge ABS sheet material layer, adjacent the interval of ABS base plate is greater than the width of first and lower pterygoid lamina of last pterygoid lamina, two one side on EVA sheet material layer towards ABS sheet material layer all is equipped with horizontal sand grip, horizontal sand grip inlays between first and lower pterygoid lamina and adjacent ABS base plate of last pterygoid lamina.

Through adopting above-mentioned technical scheme, the embedding of EVA sheet material layer pterygoid lamina one and lower pterygoid lamina one and adjacent ABS base plate between, make ABS sheet material layer along can tensile or compression better on self width direction, further strengthen its shock resistance's performance.

The present invention in a preferred example may be further configured to: on the length direction on edge ABS panel layer, adjacent the interval of ABS base plate is greater than the width of second upper wing board and second lower wing board, two one side on EVA panel layer towards ABS panel layer all is equipped with vertical sand grip, vertical sand grip inlays between second upper wing board and second lower wing board and adjacent ABS base plate.

Through adopting above-mentioned technical scheme, the second pterygoid lamina and the lower pterygoid lamina are two and between the adjacent ABS base plate in the embedding of EVA panel layer, make ABS panel layer along can tensile or compression better on self length direction, further strengthen its shock resistance's performance.

The present invention in a preferred example may be further configured to: and polymer bonding layers are arranged between the first upper wing plate and the first lower wing plate and between the second upper wing plate and the second lower wing plate.

Through adopting above-mentioned technical scheme, the polymer adhesive linkage bonds last pterygoid lamina one and lower pterygoid lamina one, last pterygoid lamina two and lower pterygoid lamina two together, improves the bulk joint strength on ABS sheet material layer, is favorable to case and bag to maintain the original state under the less condition of atress.

The invention also aims to provide a manufacturing method for the luggage plate, which has the effect of better protecting the ABS plate and preventing the ABS plate from being broken easily.

a manufacturing method for the case plate comprises

S1, forming an ABS substrate, carrying out single-layer co-extrusion by an injection molding machine to obtain an ABS plate, cutting the ABS plate into the ABS substrate, and simultaneously forming an upper wing plate I, a lower wing plate I, an upper wing plate II and a lower wing plate II;

s2, forming the EVA sheet layer, performing single-layer co-extrusion by an injection molding machine to obtain an EVA sheet, and then shaping the EVA sheet by a plastic suction machine to obtain the EVA sheet layer;

s3, forming the PC board layer, and obtaining the PC board layer through single-layer co-extrusion by an injection molding machine;

s4, assembling, namely preparing two EVA plate layers and a PC plate layer, attaching the EVA plate layers to the surface of the PC plate layer, laying an ABS substrate on one EVA plate layer, coating a high-molecular adhesive layer on the lower wing plate I and the lower wing plate II in the laying process until the ABS plate layer is formed, and then inverting the other EVA plate layer and the PC plate layer to enable the EVA plate layer to face downwards and laying the EVA plate layer on the ABS plate layer;

s5, putting the assembled plates into a hot-pressing compound machine, and carrying out hot-pressing compound to obtain a compound plate;

s6, cutting, namely cutting the composite board into pieces according to the size of the case shell to obtain cut pieces of the composite board;

s7, heating and forming, namely preheating the cut pieces of the composite board to 40-60 ℃, and then placing the cut pieces into a forming machine to form by means of an upper die and a lower die.

The present invention in a preferred example may be further configured to: in S4, the EVA sheet layer is preheated to 40-60 ℃, and then the preheated EVA sheet layer is attached to the surface of the PC sheet layer at the end of a co-extrusion die of an injection molding machine.

Through adopting above-mentioned technical scheme, direct crowded mould head end altogether at the injection molding machine will preheat the attached PC panel layer surface in EVA panel layer that is good, waste heat on can make full use of PC panel layer makes EVA panel layer and PC panel layer combine tentatively.

The present invention in a preferred example may be further configured to: the high polymer bonding material is prepared from the following raw materials in parts by weight: 1.5-2 parts of triphenyl phosphite, 3.5-4 parts of decabromodiphenylethane, 30-40 parts of epoxy resin, 60-80 parts of filler, 4-7 parts of methacryloxypropyltrimethoxysilane, 25-35 parts of m-phenylenediamine and 2-4 parts of castor oil triglycidyl ether.

By adopting the technical scheme, the decabromodiphenylethane is suitable for engineering plastics with high-temperature and high-viscosity characteristics, the m-phenylenediamine has low activity and can be completely cured at the temperature of 150 ℃, and the m-phenylenediamine is used as a raw material of a high-molecular bonding material and is matched with two procedures of hot-pressing compounding and heating forming.

The present invention in a preferred example may be further configured to: the filler is composed of alumina, silica and calcium oxide, and the mass ratio of the alumina to the silica to the calcium oxide is 1:2: 4.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the ABS plate is well protected, so that the ABS plate is not easy to break;

2. through set up horizontal sand grip and vertical sand grip on EVA panel layer to make horizontal sand grip and vertical sand grip embedding ABS panel layer in, separate the ABS base plate, make ABS panel layer along self width and length direction on can stretch better or compress, further strengthen its performance of shocking resistance.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a sectional view taken along line B-B in fig. 1.

In the figure, 1, ABS sheet layer; 2. a PC board layer; 3. an EVA sheet layer; 11. an ABS substrate; 12. a first upper wing plate; 13. a first lower wing plate; 14. a second upper wing plate; 15. a second lower wing plate; 16. a polymer adhesive layer; 31. transverse convex strips; 32. longitudinal ribs.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, the luggage board disclosed by the invention comprises an ABS board layer 1, wherein the ABS board layer 1 is formed by overlapping ABS substrates 11 arranged in an array, EVA board layers 3 are respectively arranged on the upper and lower sides of the ABS board layer 1, and a PC board layer 2 is arranged on one side of the EVA board layer 3 back to the ABS board layer 1.

Referring to fig. 2, in the width direction of the ABS sheet material layer 1, one side of the ABS substrate 11 is integrally formed with an upper flap 12, and the other side is integrally formed with a lower flap 13. The upper surface of the upper wing plate 12 is flush with the upper surface of the ABS substrate 11, and the thickness of the upper wing plate 12 is less than half of the thickness of the ABS substrate 11. The lower surface of the lower wing plate 13 is flush with the lower surface of the ABS substrate 11, and the thickness of the lower wing plate 13 is less than half of the thickness of the ABS substrate 11.

Referring to fig. 2, an upper wing plate 12 and a lower wing plate 13 on two adjacent ABS base plates 11 are overlapped together, and the upper wing plate 12 and the lower wing plate 13 are adhered together by a polymer adhesive layer 16.

Referring to fig. 2, the width of the first upper wing plate 12 and the width of the first lower wing plate 13 are smaller than the distance between the two adjacent ABS substrates 11, a transverse protrusion 31 is integrally formed on the lower surface of the EVA sheet layer 3 above the ABS sheet layer 1, and the transverse protrusion 31 is embedded between the first upper wing plate 12 and the adjacent ABS substrates 11; the upper surface of the EVA sheet layer 3 below the ABS sheet layer 1 is also integrally formed with a transverse rib 31, and the transverse rib 31 is embedded between the first lower wing plate 13 and the adjacent ABS substrate 11.

Referring to fig. 3, along the length direction of the ABS sheet layer 1, one side of the ABS substrate 11 is integrally formed with a second upper wing 14, and the other side is integrally formed with a second lower wing 15. The upper surface of the second upper wing plate 14 is flush with the upper surface of the ABS substrate 11, and the thickness of the second upper wing plate 14 is smaller than half of the thickness of the ABS substrate 11. The lower surface of the second lower wing plate 15 is flush with the lower surface of the ABS substrate 11, and the thickness of the second lower wing plate 15 is smaller than half of the thickness of the ABS substrate 11.

Referring to fig. 3, the second upper wing plate 14 and the second lower wing plate 15 on two adjacent ABS substrates 11 are overlapped together, and the second upper wing plate 14 and the second lower wing plate 15 are adhered together by a polymer adhesive layer 16.

Referring to fig. 3, the width of the second upper wing plate 14 and the second lower wing plate 15 is smaller than the distance between the two adjacent ABS substrates 11, a longitudinal convex strip 32 is integrally formed on the lower surface of the EVA sheet layer 3 above the ABS sheet layer 1, and the longitudinal convex strip 32 is embedded between the second upper wing plate 14 and the adjacent ABS substrates 11; the upper surface of the EVA sheet layer 3 below the ABS sheet layer 1 is also integrally formed with a longitudinal rib 32, and the longitudinal rib 32 is embedded between the second lower wing panel 15 and the adjacent ABS substrate 11.

The implementation principle of the embodiment is as follows:

in the normal direction of the ABS sheet layer 1, the ABS substrate 11 may be misaligned to some extent with respect to other surrounding ABS substrates 11 after being impacted, so that the deformation actually occurring on the ABS substrate 11 is small. The ABS sheet layer 1 can be stretched or compressed better in the tangential direction of the ABS sheet layer 1. In addition, the EVA sheet layer 3 has good flexibility, and buffers the ABS substrate 11 when the ABS substrate 11 is impacted and misaligned. Finally, the ABS plate layer 1 is well protected, so that the ABS plate is not easy to break.

Referring to fig. 1 to 3, the manufacturing method for the luggage board disclosed by the invention comprises the following steps:

s1, forming the ABS substrate 11, performing single-layer co-extrusion by an injection molding machine to obtain an ABS plate, cutting the ABS plate into the ABS substrate 11, and simultaneously forming the upper wing plate I12, the lower wing plate I13, the upper wing plate II 14 and the lower wing plate II 15.

S2, forming the EVA sheet layer 3, performing single-layer co-extrusion by an injection molding machine to obtain an EVA sheet, and then shaping the EVA sheet by a plastic suction machine to obtain the EVA sheet layer 3.

And S3, forming the PC board layer 2, and carrying out single-layer co-extrusion by an injection molding machine to obtain the PC board layer 2.

S4, assembling, preparing two EVA board layers 3 and a PC board layer 2, preheating the EVA board layers 3, and preheating at 40-60 ℃. And then attaching the preheated EVA sheet layer 3 to the surface of the PC sheet layer 2 at the head end of a co-extrusion die of an injection molding machine. And (3) laying the ABS substrate 11 on one of the EVA sheet layers 3, and coating a macromolecular adhesive layer 16 on the lower wing plate I13 and the lower wing plate II 15 in the laying process until the ABS sheet layer 1 is formed. Then the other EVA sheet layer 3 and PC sheet layer 2 are inverted with the EVA sheet layer 3 facing down and laid on the ABS sheet layer 1.

And S5, putting the assembled plates into a hot-pressing compound machine, and carrying out hot-pressing compound to obtain the composite plate.

And S6, cutting, namely cutting the composite board into pieces according to the size of the case shell to obtain the cut pieces of the composite board.

S7, heating and forming, namely preheating the cut pieces of the composite board to 40-60 ℃, and then putting the cut pieces between an upper pre-pressing die and a lower pre-pressing die of a forming machine and pressing the cut pieces tightly. And (3) closing the upper die and the lower die of the forming machine, controlling the closing time to be 4-5 seconds, controlling the curing time to be 60-80 seconds, controlling the closing gap of the upper die and the lower die to be 90-96% of the thickness of the composite board, and cooling, pressurizing and forming after closing the dies.

The high-molecular bonding material comprises the following raw materials in parts by weight: 1.5-2 parts of triphenyl phosphite, 3.5-4 parts of decabromodiphenylethane, 30-40 parts of epoxy resin, 60-80 parts of filler, 4-7 parts of methacryloxypropyltrimethoxysilane, 25-35 parts of m-phenylenediamine and 2-4 parts of castor oil triglycidyl ether, wherein the filler is prepared by compounding aluminum oxide, silicon oxide and calcium oxide according to the mass ratio of 1:2: 4.

The preparation steps of the high polymer bonding material are as follows:

spraying the methacryloxy silane coupling agent into a filler in a spraying mode, dispersing and stirring uniformly, adding half of epoxy resin, triphenyl phosphite and castor oil triglycidyl ether, stirring for 20 minutes while heating, adding the rest epoxy resin and decabromodiphenylethane, continuing stirring for 1 hour, then adding m-phenylenediamine, and stirring uniformly.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a case and bag panel, includes ABS sheet material layer (1), ABS sheet material layer (1) both sides are equipped with PC sheet material layer (2) respectively, its characterized in that: the ABS plate layer (1) comprises a plurality of ABS substrates (11), the ABS substrates (11) are arranged in an array along the width direction of the ABS plate layer (1), one side of the ABS base plate (11) is provided with a first upper wing plate (12), the other side is provided with a first lower wing plate (13), the upper wing plate I (12) and the lower wing plate I (13) are respectively close to the two PC board layers (2), the upper wing plate I (12) and the lower wing plate I (13) on the two adjacent ABS base plates (11) are lapped and are arranged along the length direction of the ABS board layer (1), one side of the ABS base plate (11) is provided with a second upper wing plate (14), the other side is provided with a second lower wing plate (15), and the upper wing plate II (14) and the lower wing plate II (15) are respectively close to the two PC board layers (2), the upper wing plate II (14) and the lower wing plate II (15) on the two adjacent ABS base plates (11) are lapped, an EVA (ethylene vinyl acetate) plate layer (3) is arranged between the ABS plate layer (1) and the PC plate layer (2);

one sides, facing the ABS plate layers (1), of the two EVA plate layers (3) are respectively provided with a transverse convex strip (31), and the transverse convex strips (31) are embedded between the upper wing plate I (12) and the lower wing plate I (13) and the adjacent ABS substrate (11);

two one side of EVA panel layer (3) towards ABS panel layer (1) all is equipped with longitudinal convex strip (32), longitudinal convex strip (32) inlay between two (14) of upper wing board and two (15) of lower wing board and adjacent ABS base plate (11).

2. A luggage sheet material as claimed in claim 1, wherein: in the width direction of the ABS plate layer (1), the distance between every two adjacent ABS substrates (11) is larger than the width of the upper wing plate I (12) and the width of the lower wing plate I (13).

3. A luggage sheet material as claimed in claim 1, wherein: and in the length direction of the ABS plate layer (1), the distance between every two adjacent ABS substrates (11) is greater than the width of the second upper wing plate (14) and the width of the second lower wing plate (15).

4. A luggage sheet as claimed in any one of claims 2 or 3, in which: and polymer bonding layers (16) are arranged between the first upper wing plate (12) and the first lower wing plate (13) and between the second upper wing plate (14) and the second lower wing plate (15).

5. A method of manufacturing a sheet material for a luggage as claimed in claim 4, characterized in that: comprises that

S1, forming an ABS substrate (11), carrying out single-layer co-extrusion by an injection molding machine to obtain an ABS plate, cutting the ABS plate into the ABS substrate (11), and simultaneously forming an upper wing plate I (12), a lower wing plate I (13), an upper wing plate II (14) and a lower wing plate II (15);

s2, forming the EVA sheet layer (3), performing single-layer co-extrusion by an injection molding machine to obtain an EVA sheet, and then shaping the EVA sheet by a plastic uptake machine to obtain the EVA sheet layer (3);

s3, forming the PC board layer (2), and carrying out single-layer co-extrusion by an injection molding machine to obtain the PC board layer (2);

s4, assembling, namely preparing two EVA plate layers (3) and a PC plate layer (2), attaching the EVA plate layer (3) to the surface of the PC plate layer (2), laying an ABS substrate (11) on one EVA plate layer (3), coating a high-molecular adhesive layer (16) on a lower wing plate I (13) and a lower wing plate II (15) in the laying process until the ABS plate layer (1) is formed, and then inverting the other EVA plate layer (3) and the PC plate layer (2) to enable the EVA plate layer (3) to face downwards and lay the EVA plate layer on the ABS plate layer (1);

6. A method of manufacturing a sheet material for a luggage as claimed in claim 5, wherein: in S4, the EVA sheet layer (3) is preheated at 40-60 ℃, and then the preheated EVA sheet layer (3) is attached to the surface of the PC sheet layer (2) at the end of a co-extrusion die of an injection molding machine.

7. A method of manufacturing a sheet material for a luggage as claimed in claim 5, wherein: the high polymer bonding material is prepared from the following raw materials in parts by weight: 1.5-2 parts of triphenyl phosphite, 3.5-4 parts of decabromodiphenylethane, 30-40 parts of epoxy resin, 60-80 parts of filler, 4-7 parts of methacryloxypropyltrimethoxysilane, 25-35 parts of m-phenylenediamine and 2-4 parts of castor oil triglycidyl ether.

8. A method of manufacturing a sheet material for a luggage as claimed in claim 7, wherein: the filler is composed of alumina, silica and calcium oxide, and the mass ratio of the alumina to the silica to the calcium oxide is 1:2: 4.